1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
26 When using Emacs with X, the display style of characters can be
27 changed by defining `faces'. Each face can specify the following
32 2. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 3. Font height in 1/10pt.
37 4. Font weight, e.g. `bold'.
39 5. Font slant, e.g. `italic'.
45 8. Whether or not characters should be underlined, and in what color.
47 9. Whether or not characters should be displayed in inverse video.
49 10. A background stipple, a bitmap.
51 11. Whether or not characters should be overlined, and in what color.
53 12. Whether or not characters should be strike-through, and in what
56 13. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 14. Font or fontset pattern, or nil. This is a special attribute.
60 When this attribute is specified, the face uses a font opened by
61 that pattern as is. In addition, all the other font-related
62 attributes (1st thru 5th) are generated from the opened font name.
63 On the other hand, if one of the other font-related attributes are
64 specified, this attribute is set to nil. In that case, the face
65 doesn't inherit this attribute from the `default' face, and uses a
66 font determined by the other attributes (those may be inherited
67 from the `default' face).
69 15. A face name or list of face names from which to inherit attributes.
71 16. A specified average font width, which is invisible from Lisp,
72 and is used to ensure that a font specified on the command line,
73 for example, can be matched exactly.
75 Faces are frame-local by nature because Emacs allows to define the
76 same named face (face names are symbols) differently for different
77 frames. Each frame has an alist of face definitions for all named
78 faces. The value of a named face in such an alist is a Lisp vector
79 with the symbol `face' in slot 0, and a slot for each of the face
80 attributes mentioned above.
82 There is also a global face alist `Vface_new_frame_defaults'. Face
83 definitions from this list are used to initialize faces of newly
86 A face doesn't have to specify all attributes. Those not specified
87 have a value of `unspecified'. Faces specifying all attributes but
88 the 14th are called `fully-specified'.
93 The display style of a given character in the text is determined by
94 combining several faces. This process is called `face merging'.
95 Any aspect of the display style that isn't specified by overlays or
96 text properties is taken from the `default' face. Since it is made
97 sure that the default face is always fully-specified, face merging
98 always results in a fully-specified face.
103 After all face attributes for a character have been determined by
104 merging faces of that character, that face is `realized'. The
105 realization process maps face attributes to what is physically
106 available on the system where Emacs runs. The result is a
107 `realized face' in form of a struct face which is stored in the
108 face cache of the frame on which it was realized.
110 Face realization is done in the context of the character to display
111 because different fonts may be used for different characters. In
112 other words, for characters that have different font
113 specifications, different realized faces are needed to display
116 Font specification is done by fontsets. See the comment in
117 fontset.c for the details. In the current implementation, all ASCII
118 characters share the same font in a fontset.
120 Faces are at first realized for ASCII characters, and, at that
121 time, assigned a specific realized fontset. Hereafter, we call
122 such a face as `ASCII face'. When a face for a multibyte character
123 is realized, it inherits (thus shares) a fontset of an ASCII face
124 that has the same attributes other than font-related ones.
126 Thus, all realized face have a realized fontset.
131 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
132 font as ASCII characters. That is because it is expected that
133 unibyte text users specify a font that is suitable both for ASCII
134 and raw 8-bit characters.
139 Font selection tries to find the best available matching font for a
140 given (character, face) combination.
142 If the face specifies a fontset name, that fontset determines a
143 pattern for fonts of the given character. If the face specifies a
144 font name or the other font-related attributes, a fontset is
145 realized from the default fontset. In that case, that
146 specification determines a pattern for ASCII characters and the
147 default fontset determines a pattern for multibyte characters.
149 Available fonts on the system on which Emacs runs are then matched
150 against the font pattern. The result of font selection is the best
151 match for the given face attributes in this font list.
153 Font selection can be influenced by the user.
155 1. The user can specify the relative importance he gives the face
156 attributes width, height, weight, and slant by setting
157 face-font-selection-order (faces.el) to a list of face attribute
158 names. The default is '(:width :height :weight :slant), and means
159 that font selection first tries to find a good match for the font
160 width specified by a face, then---within fonts with that
161 width---tries to find a best match for the specified font height,
164 2. Setting face-font-family-alternatives allows the user to
165 specify alternative font families to try if a family specified by a
168 3. Setting face-font-registry-alternatives allows the user to
169 specify all alternative font registries to try for a face
170 specifying a registry.
172 4. Setting face-ignored-fonts allows the user to ignore specific
176 Character composition.
178 Usually, the realization process is already finished when Emacs
179 actually reflects the desired glyph matrix on the screen. However,
180 on displaying a composition (sequence of characters to be composed
181 on the screen), a suitable font for the components of the
182 composition is selected and realized while drawing them on the
183 screen, i.e. the realization process is delayed but in principle
187 Initialization of basic faces.
189 The faces `default', `modeline' are considered `basic faces'.
190 When redisplay happens the first time for a newly created frame,
191 basic faces are realized for CHARSET_ASCII. Frame parameters are
192 used to fill in unspecified attributes of the default face. */
196 #include <sys/types.h>
197 #include <sys/stat.h>
201 #include "keyboard.h"
204 #ifdef HAVE_WINDOW_SYSTEM
206 #endif /* HAVE_WINDOW_SYSTEM */
208 #ifdef HAVE_X_WINDOWS
212 #include <Xm/XmStrDefs.h>
213 #endif /* USE_MOTIF */
214 #endif /* HAVE_X_WINDOWS */
223 /* Redefine X specifics to W32 equivalents to avoid cluttering the
224 code with #ifdef blocks. */
225 #undef FRAME_X_DISPLAY_INFO
226 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
227 #define x_display_info w32_display_info
228 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
229 #define check_x check_w32
230 #define x_list_fonts w32_list_fonts
231 #define GCGraphicsExposures 0
232 #endif /* WINDOWSNT */
236 #define x_display_info mac_display_info
237 #define check_x check_mac
241 #include "dispextern.h"
242 #include "blockinput.h"
244 #include "intervals.h"
246 #ifdef HAVE_X_WINDOWS
248 /* Compensate for a bug in Xos.h on some systems, on which it requires
249 time.h. On some such systems, Xos.h tries to redefine struct
250 timeval and struct timezone if USG is #defined while it is
253 #ifdef XOS_NEEDS_TIME_H
259 #else /* not XOS_NEEDS_TIME_H */
261 #endif /* not XOS_NEEDS_TIME_H */
263 #endif /* HAVE_X_WINDOWS */
267 #define abs(X) ((X) < 0 ? -(X) : (X))
269 /* Number of pt per inch (from the TeXbook). */
271 #define PT_PER_INCH 72.27
273 /* Non-zero if face attribute ATTR is unspecified. */
275 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
277 /* Value is the number of elements of VECTOR. */
279 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
281 /* Make a copy of string S on the stack using alloca. Value is a pointer
284 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
286 /* Make a copy of the contents of Lisp string S on the stack using
287 alloca. Value is a pointer to the copy. */
289 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
291 /* Size of hash table of realized faces in face caches (should be a
294 #define FACE_CACHE_BUCKETS_SIZE 1001
296 /* Keyword symbols used for face attribute names. */
298 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
299 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
300 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
301 Lisp_Object QCreverse_video
;
302 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
304 /* Symbols used for attribute values. */
306 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
307 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
308 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
309 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
310 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
311 Lisp_Object Qultra_expanded
;
312 Lisp_Object Qreleased_button
, Qpressed_button
;
313 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
314 Lisp_Object Qunspecified
;
316 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
318 /* The name of the function to call when the background of the frame
319 has changed, frame_update_face_colors. */
321 Lisp_Object Qframe_update_face_colors
;
323 /* Names of basic faces. */
325 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
326 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
327 Lisp_Object Qmode_line_inactive
;
328 extern Lisp_Object Qmode_line
;
330 /* The symbol `face-alias'. A symbols having that property is an
331 alias for another face. Value of the property is the name of
334 Lisp_Object Qface_alias
;
336 /* Default stipple pattern used on monochrome displays. This stipple
337 pattern is used on monochrome displays instead of shades of gray
338 for a face background color. See `set-face-stipple' for possible
339 values for this variable. */
341 Lisp_Object Vface_default_stipple
;
343 /* Alist of alternative font families. Each element is of the form
344 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
345 try FAMILY1, then FAMILY2, ... */
347 Lisp_Object Vface_alternative_font_family_alist
;
349 /* Alist of alternative font registries. Each element is of the form
350 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
351 loaded, try REGISTRY1, then REGISTRY2, ... */
353 Lisp_Object Vface_alternative_font_registry_alist
;
355 /* Allowed scalable fonts. A value of nil means don't allow any
356 scalable fonts. A value of t means allow the use of any scalable
357 font. Otherwise, value must be a list of regular expressions. A
358 font may be scaled if its name matches a regular expression in the
361 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
363 /* List of regular expressions that matches names of fonts to ignore. */
365 Lisp_Object Vface_ignored_fonts
;
367 /* Alist of font name patterns vs the rescaling factor. */
369 Lisp_Object Vface_font_rescale_alist
;
371 /* Maximum number of fonts to consider in font_list. If not an
372 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
374 Lisp_Object Vfont_list_limit
;
375 #define DEFAULT_FONT_LIST_LIMIT 100
377 /* The symbols `foreground-color' and `background-color' which can be
378 used as part of a `face' property. This is for compatibility with
381 Lisp_Object Qforeground_color
, Qbackground_color
;
383 /* The symbols `face' and `mouse-face' used as text properties. */
386 extern Lisp_Object Qmouse_face
;
388 /* Error symbol for wrong_type_argument in load_pixmap. */
390 Lisp_Object Qbitmap_spec_p
;
392 /* Alist of global face definitions. Each element is of the form
393 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
394 is a Lisp vector of face attributes. These faces are used
395 to initialize faces for new frames. */
397 Lisp_Object Vface_new_frame_defaults
;
399 /* The next ID to assign to Lisp faces. */
401 static int next_lface_id
;
403 /* A vector mapping Lisp face Id's to face names. */
405 static Lisp_Object
*lface_id_to_name
;
406 static int lface_id_to_name_size
;
408 /* TTY color-related functions (defined in tty-colors.el). */
410 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
412 /* The name of the function used to compute colors on TTYs. */
414 Lisp_Object Qtty_color_alist
;
416 /* An alist of defined terminal colors and their RGB values. */
418 Lisp_Object Vtty_defined_color_alist
;
420 /* Counter for calls to clear_face_cache. If this counter reaches
421 CLEAR_FONT_TABLE_COUNT, and a frame has more than
422 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
424 static int clear_font_table_count
;
425 #define CLEAR_FONT_TABLE_COUNT 100
426 #define CLEAR_FONT_TABLE_NFONTS 10
428 /* Non-zero means face attributes have been changed since the last
429 redisplay. Used in redisplay_internal. */
431 int face_change_count
;
433 /* Non-zero means don't display bold text if a face's foreground
434 and background colors are the inverse of the default colors of the
435 display. This is a kluge to suppress `bold black' foreground text
436 which is hard to read on an LCD monitor. */
438 int tty_suppress_bold_inverse_default_colors_p
;
440 /* A list of the form `((x . y))' used to avoid consing in
441 Finternal_set_lisp_face_attribute. */
443 static Lisp_Object Vparam_value_alist
;
445 /* The total number of colors currently allocated. */
448 static int ncolors_allocated
;
449 static int npixmaps_allocated
;
453 /* Non-zero means the definition of the `menu' face for new frames has
456 int menu_face_changed_default
;
459 /* Function prototypes. */
463 struct named_merge_point
;
465 static void map_tty_color
P_ ((struct frame
*, struct face
*,
466 enum lface_attribute_index
, int *));
467 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
468 static int may_use_scalable_font_p
P_ ((const char *));
469 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
470 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
472 static int x_face_list_fonts
P_ ((struct frame
*, char *,
473 struct font_name
**, int, int));
474 static int font_scalable_p
P_ ((struct font_name
*));
475 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
476 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
477 static unsigned char *xstrlwr
P_ ((unsigned char *));
478 static void signal_error
P_ ((char *, Lisp_Object
));
479 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
480 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
481 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
482 static void free_face_colors
P_ ((struct frame
*, struct face
*));
483 static int face_color_gray_p
P_ ((struct frame
*, char *));
484 static char *build_font_name
P_ ((struct font_name
*));
485 static void free_font_names
P_ ((struct font_name
*, int));
486 static int sorted_font_list
P_ ((struct frame
*, char *,
487 int (*cmpfn
) P_ ((const void *, const void *)),
488 struct font_name
**));
489 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
490 Lisp_Object
, struct font_name
**));
491 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
492 Lisp_Object
, struct font_name
**));
493 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
494 Lisp_Object
, Lisp_Object
, struct font_name
**,
496 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
497 Lisp_Object
, struct font_name
**));
498 static int cmp_font_names
P_ ((const void *, const void *));
499 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
500 struct face
*, int));
501 static struct face
*realize_x_face
P_ ((struct face_cache
*,
502 Lisp_Object
*, int, struct face
*));
503 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
504 Lisp_Object
*, int));
505 static int realize_basic_faces
P_ ((struct frame
*));
506 static int realize_default_face
P_ ((struct frame
*));
507 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
508 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
509 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
510 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
511 static unsigned lface_hash
P_ ((Lisp_Object
*));
512 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
513 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
514 static void free_realized_face
P_ ((struct frame
*, struct face
*));
515 static void clear_face_gcs
P_ ((struct face_cache
*));
516 static void free_face_cache
P_ ((struct face_cache
*));
517 static int face_numeric_weight
P_ ((Lisp_Object
));
518 static int face_numeric_slant
P_ ((Lisp_Object
));
519 static int face_numeric_swidth
P_ ((Lisp_Object
));
520 static int face_fontset
P_ ((Lisp_Object
*));
521 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int, int*));
522 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
523 struct named_merge_point
*));
524 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
525 int, struct named_merge_point
*));
526 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
527 Lisp_Object
, int, int));
528 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
529 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
530 static void free_realized_faces
P_ ((struct face_cache
*));
531 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
532 struct font_name
*, int, int, int *));
533 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
534 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
535 static int xlfd_numeric_slant
P_ ((struct font_name
*));
536 static int xlfd_numeric_weight
P_ ((struct font_name
*));
537 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
538 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
539 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
540 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
541 static int xlfd_fixed_p
P_ ((struct font_name
*));
542 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
544 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
545 struct font_name
*, int,
547 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
548 struct font_name
*, int));
550 #ifdef HAVE_WINDOW_SYSTEM
552 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
553 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
554 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
555 int (*cmpfn
) P_ ((const void *, const void *))));
556 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
557 static void x_free_gc
P_ ((struct frame
*, GC
));
558 static void clear_font_table
P_ ((struct x_display_info
*));
561 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
562 #endif /* WINDOWSNT */
565 static void x_update_menu_appearance
P_ ((struct frame
*));
567 extern void free_frame_menubar
P_ ((struct frame
*));
568 #endif /* USE_X_TOOLKIT */
570 #endif /* HAVE_WINDOW_SYSTEM */
573 /***********************************************************************
575 ***********************************************************************/
577 #ifdef HAVE_X_WINDOWS
579 #ifdef DEBUG_X_COLORS
581 /* The following is a poor mans infrastructure for debugging X color
582 allocation problems on displays with PseudoColor-8. Some X servers
583 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
584 color reference counts completely so that they don't signal an
585 error when a color is freed whose reference count is already 0.
586 Other X servers do. To help me debug this, the following code
587 implements a simple reference counting schema of its own, for a
588 single display/screen. --gerd. */
590 /* Reference counts for pixel colors. */
592 int color_count
[256];
594 /* Register color PIXEL as allocated. */
597 register_color (pixel
)
600 xassert (pixel
< 256);
601 ++color_count
[pixel
];
605 /* Register color PIXEL as deallocated. */
608 unregister_color (pixel
)
611 xassert (pixel
< 256);
612 if (color_count
[pixel
] > 0)
613 --color_count
[pixel
];
619 /* Register N colors from PIXELS as deallocated. */
622 unregister_colors (pixels
, n
)
623 unsigned long *pixels
;
627 for (i
= 0; i
< n
; ++i
)
628 unregister_color (pixels
[i
]);
632 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
633 doc
: /* Dump currently allocated colors to stderr. */)
638 fputc ('\n', stderr
);
640 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
643 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
646 fputc ('\n', stderr
);
648 fputc ('\t', stderr
);
652 fputc ('\n', stderr
);
656 #endif /* DEBUG_X_COLORS */
659 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
660 color values. Interrupt input must be blocked when this function
664 x_free_colors (f
, pixels
, npixels
)
666 unsigned long *pixels
;
669 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
671 /* If display has an immutable color map, freeing colors is not
672 necessary and some servers don't allow it. So don't do it. */
673 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
675 #ifdef DEBUG_X_COLORS
676 unregister_colors (pixels
, npixels
);
678 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
684 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
685 color values. Interrupt input must be blocked when this function
689 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
693 unsigned long *pixels
;
696 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
697 int class = dpyinfo
->visual
->class;
699 /* If display has an immutable color map, freeing colors is not
700 necessary and some servers don't allow it. So don't do it. */
701 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
703 #ifdef DEBUG_X_COLORS
704 unregister_colors (pixels
, npixels
);
706 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
711 /* Create and return a GC for use on frame F. GC values and mask
712 are given by XGCV and MASK. */
715 x_create_gc (f
, mask
, xgcv
)
722 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
729 /* Free GC which was used on frame F. */
737 xassert (--ngcs
>= 0);
738 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
742 #endif /* HAVE_X_WINDOWS */
745 /* W32 emulation of GCs */
748 x_create_gc (f
, mask
, xgcv
)
755 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
762 /* Free GC which was used on frame F. */
770 xassert (--ngcs
>= 0);
775 #endif /* WINDOWSNT */
778 /* Mac OS emulation of GCs */
780 extern XGCValues
*XCreateGC (void *, Window
, unsigned long, XGCValues
*);
783 x_create_gc (f
, mask
, xgcv
)
789 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
798 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
803 /* Like stricmp. Used to compare parts of font names which are in
808 const unsigned char *s1
, *s2
;
812 unsigned char c1
= tolower (*s1
);
813 unsigned char c2
= tolower (*s2
);
815 return c1
< c2
? -1 : 1;
820 return *s2
== 0 ? 0 : -1;
825 /* Like strlwr, which might not always be available. */
827 static unsigned char *
831 unsigned char *p
= s
;
840 /* Signal `error' with message S, and additional argument ARG. */
843 signal_error (s
, arg
)
847 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
851 /* If FRAME is nil, return a pointer to the selected frame.
852 Otherwise, check that FRAME is a live frame, and return a pointer
853 to it. NPARAM is the parameter number of FRAME, for
854 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
855 Lisp function definitions. */
857 static INLINE
struct frame
*
858 frame_or_selected_frame (frame
, nparam
)
863 frame
= selected_frame
;
865 CHECK_LIVE_FRAME (frame
);
866 return XFRAME (frame
);
870 /***********************************************************************
872 ***********************************************************************/
874 /* Initialize face cache and basic faces for frame F. */
880 /* Make a face cache, if F doesn't have one. */
881 if (FRAME_FACE_CACHE (f
) == NULL
)
882 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
884 #ifdef HAVE_WINDOW_SYSTEM
885 /* Make the image cache. */
886 if (FRAME_WINDOW_P (f
))
888 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
889 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
890 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
892 #endif /* HAVE_WINDOW_SYSTEM */
894 /* Realize basic faces. Must have enough information in frame
895 parameters to realize basic faces at this point. */
896 #ifdef HAVE_X_WINDOWS
897 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
900 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
903 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
905 if (!realize_basic_faces (f
))
910 /* Free face cache of frame F. Called from Fdelete_frame. */
916 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
920 free_face_cache (face_cache
);
921 FRAME_FACE_CACHE (f
) = NULL
;
924 #ifdef HAVE_WINDOW_SYSTEM
925 if (FRAME_WINDOW_P (f
))
927 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
930 --image_cache
->refcount
;
931 if (image_cache
->refcount
== 0)
932 free_image_cache (f
);
935 #endif /* HAVE_WINDOW_SYSTEM */
939 /* Clear face caches, and recompute basic faces for frame F. Call
940 this after changing frame parameters on which those faces depend,
941 or when realized faces have been freed due to changing attributes
945 recompute_basic_faces (f
)
948 if (FRAME_FACE_CACHE (f
))
950 clear_face_cache (0);
951 if (!realize_basic_faces (f
))
957 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
958 try to free unused fonts, too. */
961 clear_face_cache (clear_fonts_p
)
964 #ifdef HAVE_WINDOW_SYSTEM
965 Lisp_Object tail
, frame
;
969 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
971 struct x_display_info
*dpyinfo
;
973 /* Fonts are common for frames on one display, i.e. on
975 for (dpyinfo
= x_display_list
; dpyinfo
; dpyinfo
= dpyinfo
->next
)
976 if (dpyinfo
->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
977 clear_font_table (dpyinfo
);
979 /* From time to time see if we can unload some fonts. This also
980 frees all realized faces on all frames. Fonts needed by
981 faces will be loaded again when faces are realized again. */
982 clear_font_table_count
= 0;
984 FOR_EACH_FRAME (tail
, frame
)
986 struct frame
*f
= XFRAME (frame
);
987 if (FRAME_WINDOW_P (f
)
988 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
989 free_all_realized_faces (frame
);
994 /* Clear GCs of realized faces. */
995 FOR_EACH_FRAME (tail
, frame
)
998 if (FRAME_WINDOW_P (f
))
1000 clear_face_gcs (FRAME_FACE_CACHE (f
));
1001 clear_image_cache (f
, 0);
1005 #endif /* HAVE_WINDOW_SYSTEM */
1009 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1010 doc
: /* Clear face caches on all frames.
1011 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
1013 Lisp_Object thoroughly
;
1015 clear_face_cache (!NILP (thoroughly
));
1016 ++face_change_count
;
1017 ++windows_or_buffers_changed
;
1023 #ifdef HAVE_WINDOW_SYSTEM
1026 /* Remove fonts from the font table of DPYINFO except for the default
1027 ASCII fonts of frames on that display. Called from clear_face_cache
1028 from time to time. */
1031 clear_font_table (dpyinfo
)
1032 struct x_display_info
*dpyinfo
;
1036 /* Free those fonts that are not used by frames on DPYINFO. */
1037 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1039 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1040 Lisp_Object tail
, frame
;
1042 /* Check if slot is already free. */
1043 if (font_info
->name
== NULL
)
1046 /* Don't free a default font of some frame. */
1047 FOR_EACH_FRAME (tail
, frame
)
1049 struct frame
*f
= XFRAME (frame
);
1050 if (FRAME_WINDOW_P (f
)
1051 && font_info
->font
== FRAME_FONT (f
))
1059 if (font_info
->full_name
!= font_info
->name
)
1060 xfree (font_info
->full_name
);
1061 xfree (font_info
->name
);
1063 /* Free the font. */
1065 #ifdef HAVE_X_WINDOWS
1066 XFreeFont (dpyinfo
->display
, font_info
->font
);
1069 w32_unload_font (dpyinfo
, font_info
->font
);
1073 /* Mark font table slot free. */
1074 font_info
->font
= NULL
;
1075 font_info
->name
= font_info
->full_name
= NULL
;
1079 #endif /* HAVE_WINDOW_SYSTEM */
1083 /***********************************************************************
1085 ***********************************************************************/
1087 #ifdef HAVE_WINDOW_SYSTEM
1089 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1090 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
1091 A bitmap specification is either a string, a file name, or a list
1092 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
1093 HEIGHT is its height, and DATA is a string containing the bits of
1094 the pixmap. Bits are stored row by row, each row occupies
1095 \(WIDTH + 7)/8 bytes. */)
1101 if (STRINGP (object
))
1102 /* If OBJECT is a string, it's a file name. */
1104 else if (CONSP (object
))
1106 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1107 HEIGHT must be integers > 0, and DATA must be string large
1108 enough to hold a bitmap of the specified size. */
1109 Lisp_Object width
, height
, data
;
1111 height
= width
= data
= Qnil
;
1115 width
= XCAR (object
);
1116 object
= XCDR (object
);
1119 height
= XCAR (object
);
1120 object
= XCDR (object
);
1122 data
= XCAR (object
);
1126 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1128 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1130 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1135 return pixmap_p
? Qt
: Qnil
;
1139 /* Load a bitmap according to NAME (which is either a file name or a
1140 pixmap spec) for use on frame F. Value is the bitmap_id (see
1141 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1142 bitmap cannot be loaded, display a message saying so, and return
1143 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1144 if these pointers are not null. */
1147 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1150 unsigned int *w_ptr
, *h_ptr
;
1158 tem
= Fbitmap_spec_p (name
);
1160 wrong_type_argument (Qbitmap_spec_p
, name
);
1165 /* Decode a bitmap spec into a bitmap. */
1170 w
= XINT (Fcar (name
));
1171 h
= XINT (Fcar (Fcdr (name
)));
1172 bits
= Fcar (Fcdr (Fcdr (name
)));
1174 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1179 /* It must be a string -- a file name. */
1180 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1186 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1197 ++npixmaps_allocated
;
1200 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1203 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1209 #endif /* HAVE_WINDOW_SYSTEM */
1213 /***********************************************************************
1215 ***********************************************************************/
1217 #ifdef HAVE_WINDOW_SYSTEM
1219 /* Load font of face FACE which is used on frame F to display
1220 character C. The name of the font to load is determined by lface
1221 and fontset of FACE. */
1224 load_face_font (f
, face
, c
)
1229 struct font_info
*font_info
= NULL
;
1231 int needs_overstrike
;
1233 face
->font_info_id
= -1;
1236 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
,
1242 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1247 face
->font_info_id
= font_info
->font_idx
;
1248 face
->font
= font_info
->font
;
1249 face
->font_name
= font_info
->full_name
;
1250 face
->overstrike
= needs_overstrike
;
1253 x_free_gc (f
, face
->gc
);
1258 add_to_log ("Unable to load font %s",
1259 build_string (font_name
), Qnil
);
1263 #endif /* HAVE_WINDOW_SYSTEM */
1267 /***********************************************************************
1269 ***********************************************************************/
1271 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1272 RGB_LIST should contain (at least) 3 lisp integers.
1273 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1276 parse_rgb_list (rgb_list
, color
)
1277 Lisp_Object rgb_list
;
1280 #define PARSE_RGB_LIST_FIELD(field) \
1281 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1283 color->field = XINT (XCAR (rgb_list)); \
1284 rgb_list = XCDR (rgb_list); \
1289 PARSE_RGB_LIST_FIELD (red
);
1290 PARSE_RGB_LIST_FIELD (green
);
1291 PARSE_RGB_LIST_FIELD (blue
);
1297 /* Lookup on frame F the color described by the lisp string COLOR.
1298 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1299 non-zero, then the `standard' definition of the same color is
1303 tty_lookup_color (f
, color
, tty_color
, std_color
)
1306 XColor
*tty_color
, *std_color
;
1308 Lisp_Object frame
, color_desc
;
1310 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1313 XSETFRAME (frame
, f
);
1315 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1316 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1320 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1323 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1325 rgb
= XCDR (XCDR (color_desc
));
1326 if (! parse_rgb_list (rgb
, tty_color
))
1329 /* Should we fill in STD_COLOR too? */
1332 /* Default STD_COLOR to the same as TTY_COLOR. */
1333 *std_color
= *tty_color
;
1335 /* Do a quick check to see if the returned descriptor is
1336 actually _exactly_ equal to COLOR, otherwise we have to
1337 lookup STD_COLOR separately. If it's impossible to lookup
1338 a standard color, we just give up and use TTY_COLOR. */
1339 if ((!STRINGP (XCAR (color_desc
))
1340 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1341 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1343 /* Look up STD_COLOR separately. */
1344 rgb
= call1 (Qtty_color_standard_values
, color
);
1345 if (! parse_rgb_list (rgb
, std_color
))
1352 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1353 /* We were called early during startup, and the colors are not
1354 yet set up in tty-defined-color-alist. Don't return a failure
1355 indication, since this produces the annoying "Unable to
1356 load color" messages in the *Messages* buffer. */
1359 /* tty-color-desc seems to have returned a bad value. */
1363 /* A version of defined_color for non-X frames. */
1366 tty_defined_color (f
, color_name
, color_def
, alloc
)
1375 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1377 color_def
->blue
= 0;
1378 color_def
->green
= 0;
1381 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, 0);
1383 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1385 if (strcmp (color_name
, "unspecified-fg") == 0)
1386 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1387 else if (strcmp (color_name
, "unspecified-bg") == 0)
1388 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1391 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1398 /* Decide if color named COLOR_NAME is valid for the display
1399 associated with the frame F; if so, return the rgb values in
1400 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1402 This does the right thing for any type of frame. */
1405 defined_color (f
, color_name
, color_def
, alloc
)
1411 if (!FRAME_WINDOW_P (f
))
1412 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1413 #ifdef HAVE_X_WINDOWS
1414 else if (FRAME_X_P (f
))
1415 return x_defined_color (f
, color_name
, color_def
, alloc
);
1418 else if (FRAME_W32_P (f
))
1419 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1422 else if (FRAME_MAC_P (f
))
1423 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1430 /* Given the index IDX of a tty color on frame F, return its name, a
1434 tty_color_name (f
, idx
)
1438 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1441 Lisp_Object coldesc
;
1443 XSETFRAME (frame
, f
);
1444 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1446 if (!NILP (coldesc
))
1447 return XCAR (coldesc
);
1450 /* We can have an MSDOG frame under -nw for a short window of
1451 opportunity before internal_terminal_init is called. DTRT. */
1452 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1453 return msdos_stdcolor_name (idx
);
1456 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1457 return build_string (unspecified_fg
);
1458 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1459 return build_string (unspecified_bg
);
1462 return vga_stdcolor_name (idx
);
1465 return Qunspecified
;
1469 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1470 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1473 face_color_gray_p (f
, color_name
)
1480 if (defined_color (f
, color_name
, &color
, 0))
1481 gray_p
= ((abs (color
.red
- color
.green
)
1482 < max (color
.red
, color
.green
) / 20)
1483 && (abs (color
.green
- color
.blue
)
1484 < max (color
.green
, color
.blue
) / 20)
1485 && (abs (color
.blue
- color
.red
)
1486 < max (color
.blue
, color
.red
) / 20));
1494 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1495 BACKGROUND_P non-zero means the color will be used as background
1499 face_color_supported_p (f
, color_name
, background_p
)
1507 XSETFRAME (frame
, f
);
1509 #ifdef HAVE_X_WINDOWS
1511 ? (!NILP (Fxw_display_color_p (frame
))
1512 || xstricmp (color_name
, "black") == 0
1513 || xstricmp (color_name
, "white") == 0
1515 && face_color_gray_p (f
, color_name
))
1516 || (!NILP (Fx_display_grayscale_p (frame
))
1517 && face_color_gray_p (f
, color_name
)))
1520 tty_defined_color (f
, color_name
, ¬_used
, 0);
1524 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1525 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1526 FRAME specifies the frame and thus the display for interpreting COLOR.
1527 If FRAME is nil or omitted, use the selected frame. */)
1529 Lisp_Object color
, frame
;
1533 CHECK_STRING (color
);
1535 frame
= selected_frame
;
1537 CHECK_FRAME (frame
);
1539 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1543 DEFUN ("color-supported-p", Fcolor_supported_p
,
1544 Scolor_supported_p
, 1, 3, 0,
1545 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1546 BACKGROUND-P non-nil means COLOR is used as a background.
1547 Otherwise, this function tells whether it can be used as a foreground.
1548 If FRAME is nil or omitted, use the selected frame.
1549 COLOR must be a valid color name. */)
1550 (color
, frame
, background_p
)
1551 Lisp_Object frame
, color
, background_p
;
1555 CHECK_STRING (color
);
1557 frame
= selected_frame
;
1559 CHECK_FRAME (frame
);
1561 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1567 /* Load color with name NAME for use by face FACE on frame F.
1568 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1569 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1570 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1571 pixel color. If color cannot be loaded, display a message, and
1572 return the foreground, background or underline color of F, but
1573 record that fact in flags of the face so that we don't try to free
1577 load_color (f
, face
, name
, target_index
)
1581 enum lface_attribute_index target_index
;
1585 xassert (STRINGP (name
));
1586 xassert (target_index
== LFACE_FOREGROUND_INDEX
1587 || target_index
== LFACE_BACKGROUND_INDEX
1588 || target_index
== LFACE_UNDERLINE_INDEX
1589 || target_index
== LFACE_OVERLINE_INDEX
1590 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1591 || target_index
== LFACE_BOX_INDEX
);
1593 /* if the color map is full, defined_color will return a best match
1594 to the values in an existing cell. */
1595 if (!defined_color (f
, SDATA (name
), &color
, 1))
1597 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1599 switch (target_index
)
1601 case LFACE_FOREGROUND_INDEX
:
1602 face
->foreground_defaulted_p
= 1;
1603 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1606 case LFACE_BACKGROUND_INDEX
:
1607 face
->background_defaulted_p
= 1;
1608 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1611 case LFACE_UNDERLINE_INDEX
:
1612 face
->underline_defaulted_p
= 1;
1613 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1616 case LFACE_OVERLINE_INDEX
:
1617 face
->overline_color_defaulted_p
= 1;
1618 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1621 case LFACE_STRIKE_THROUGH_INDEX
:
1622 face
->strike_through_color_defaulted_p
= 1;
1623 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1626 case LFACE_BOX_INDEX
:
1627 face
->box_color_defaulted_p
= 1;
1628 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1637 ++ncolors_allocated
;
1644 #ifdef HAVE_WINDOW_SYSTEM
1646 /* Load colors for face FACE which is used on frame F. Colors are
1647 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1648 of ATTRS. If the background color specified is not supported on F,
1649 try to emulate gray colors with a stipple from Vface_default_stipple. */
1652 load_face_colors (f
, face
, attrs
)
1659 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1660 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1662 /* Swap colors if face is inverse-video. */
1663 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1671 /* Check for support for foreground, not for background because
1672 face_color_supported_p is smart enough to know that grays are
1673 "supported" as background because we are supposed to use stipple
1675 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1676 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1678 x_destroy_bitmap (f
, face
->stipple
);
1679 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1680 &face
->pixmap_w
, &face
->pixmap_h
);
1683 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1684 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1688 /* Free color PIXEL on frame F. */
1691 unload_color (f
, pixel
)
1693 unsigned long pixel
;
1695 #ifdef HAVE_X_WINDOWS
1699 x_free_colors (f
, &pixel
, 1);
1706 /* Free colors allocated for FACE. */
1709 free_face_colors (f
, face
)
1713 #ifdef HAVE_X_WINDOWS
1714 if (face
->colors_copied_bitwise_p
)
1719 if (!face
->foreground_defaulted_p
)
1721 x_free_colors (f
, &face
->foreground
, 1);
1722 IF_DEBUG (--ncolors_allocated
);
1725 if (!face
->background_defaulted_p
)
1727 x_free_colors (f
, &face
->background
, 1);
1728 IF_DEBUG (--ncolors_allocated
);
1731 if (face
->underline_p
1732 && !face
->underline_defaulted_p
)
1734 x_free_colors (f
, &face
->underline_color
, 1);
1735 IF_DEBUG (--ncolors_allocated
);
1738 if (face
->overline_p
1739 && !face
->overline_color_defaulted_p
)
1741 x_free_colors (f
, &face
->overline_color
, 1);
1742 IF_DEBUG (--ncolors_allocated
);
1745 if (face
->strike_through_p
1746 && !face
->strike_through_color_defaulted_p
)
1748 x_free_colors (f
, &face
->strike_through_color
, 1);
1749 IF_DEBUG (--ncolors_allocated
);
1752 if (face
->box
!= FACE_NO_BOX
1753 && !face
->box_color_defaulted_p
)
1755 x_free_colors (f
, &face
->box_color
, 1);
1756 IF_DEBUG (--ncolors_allocated
);
1760 #endif /* HAVE_X_WINDOWS */
1763 #endif /* HAVE_WINDOW_SYSTEM */
1767 /***********************************************************************
1769 ***********************************************************************/
1771 /* An enumerator for each field of an XLFD font name. */
1792 /* An enumerator for each possible slant value of a font. Taken from
1793 the XLFD specification. */
1801 XLFD_SLANT_REVERSE_ITALIC
,
1802 XLFD_SLANT_REVERSE_OBLIQUE
,
1806 /* Relative font weight according to XLFD documentation. */
1810 XLFD_WEIGHT_UNKNOWN
,
1811 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1812 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1813 XLFD_WEIGHT_LIGHT
, /* 30 */
1814 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1815 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1816 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1817 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1818 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1819 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1822 /* Relative proportionate width. */
1826 XLFD_SWIDTH_UNKNOWN
,
1827 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1828 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1829 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1830 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1831 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1832 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1833 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1834 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1835 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1838 /* Structure used for tables mapping XLFD weight, slant, and width
1839 names to numeric and symbolic values. */
1845 Lisp_Object
*symbol
;
1848 /* Table of XLFD slant names and their numeric and symbolic
1849 representations. This table must be sorted by slant names in
1852 static struct table_entry slant_table
[] =
1854 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1855 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1856 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1857 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1858 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1859 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1862 /* Table of XLFD weight names. This table must be sorted by weight
1863 names in ascending order. */
1865 static struct table_entry weight_table
[] =
1867 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1868 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1869 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1870 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1871 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1872 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1873 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1874 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1875 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1876 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1877 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1878 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1879 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1880 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1881 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1882 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1885 /* Table of XLFD width names. This table must be sorted by width
1886 names in ascending order. */
1888 static struct table_entry swidth_table
[] =
1890 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1891 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1892 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1893 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1894 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1895 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1896 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1897 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1898 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1899 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1900 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1901 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1902 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1903 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1904 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1907 /* Structure used to hold the result of splitting font names in XLFD
1908 format into their fields. */
1912 /* The original name which is modified destructively by
1913 split_font_name. The pointer is kept here to be able to free it
1914 if it was allocated from the heap. */
1917 /* Font name fields. Each vector element points into `name' above.
1918 Fields are NUL-terminated. */
1919 char *fields
[XLFD_LAST
];
1921 /* Numeric values for those fields that interest us. See
1922 split_font_name for which these are. */
1923 int numeric
[XLFD_LAST
];
1925 /* If the original name matches one of Vface_font_rescale_alist,
1926 the value is the corresponding rescale ratio. Otherwise, the
1928 double rescale_ratio
;
1930 /* Lower value mean higher priority. */
1931 int registry_priority
;
1934 /* The frame in effect when sorting font names. Set temporarily in
1935 sort_fonts so that it is available in font comparison functions. */
1937 static struct frame
*font_frame
;
1939 /* Order by which font selection chooses fonts. The default values
1940 mean `first, find a best match for the font width, then for the
1941 font height, then for weight, then for slant.' This variable can be
1942 set via set-face-font-sort-order. */
1945 static int font_sort_order
[4] = {
1946 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1949 static int font_sort_order
[4];
1952 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1953 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1954 is a pointer to the matching table entry or null if no table entry
1957 static struct table_entry
*
1958 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1959 struct table_entry
*table
;
1961 struct font_name
*font
;
1964 /* Function split_font_name converts fields to lower-case, so there
1965 is no need to use xstrlwr or xstricmp here. */
1966 char *s
= font
->fields
[field_index
];
1967 int low
, mid
, high
, cmp
;
1974 mid
= (low
+ high
) / 2;
1975 cmp
= strcmp (table
[mid
].name
, s
);
1989 /* Return a numeric representation for font name field
1990 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1991 has DIM entries. Value is the numeric value found or DFLT if no
1992 table entry matches. This function is used to translate weight,
1993 slant, and swidth names of XLFD font names to numeric values. */
1996 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1997 struct table_entry
*table
;
1999 struct font_name
*font
;
2003 struct table_entry
*p
;
2004 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2005 return p
? p
->numeric
: dflt
;
2009 /* Return a symbolic representation for font name field
2010 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2011 has DIM entries. Value is the symbolic value found or DFLT if no
2012 table entry matches. This function is used to translate weight,
2013 slant, and swidth names of XLFD font names to symbols. */
2015 static INLINE Lisp_Object
2016 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2017 struct table_entry
*table
;
2019 struct font_name
*font
;
2023 struct table_entry
*p
;
2024 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2025 return p
? *p
->symbol
: dflt
;
2029 /* Return a numeric value for the slant of the font given by FONT. */
2032 xlfd_numeric_slant (font
)
2033 struct font_name
*font
;
2035 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2036 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2040 /* Return a symbol representing the weight of the font given by FONT. */
2042 static INLINE Lisp_Object
2043 xlfd_symbolic_slant (font
)
2044 struct font_name
*font
;
2046 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2047 font
, XLFD_SLANT
, Qnormal
);
2051 /* Return a numeric value for the weight of the font given by FONT. */
2054 xlfd_numeric_weight (font
)
2055 struct font_name
*font
;
2057 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2058 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2062 /* Return a symbol representing the slant of the font given by FONT. */
2064 static INLINE Lisp_Object
2065 xlfd_symbolic_weight (font
)
2066 struct font_name
*font
;
2068 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2069 font
, XLFD_WEIGHT
, Qnormal
);
2073 /* Return a numeric value for the swidth of the font whose XLFD font
2074 name fields are found in FONT. */
2077 xlfd_numeric_swidth (font
)
2078 struct font_name
*font
;
2080 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2081 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2085 /* Return a symbolic value for the swidth of FONT. */
2087 static INLINE Lisp_Object
2088 xlfd_symbolic_swidth (font
)
2089 struct font_name
*font
;
2091 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2092 font
, XLFD_SWIDTH
, Qnormal
);
2096 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2097 entries. Value is a pointer to the matching table entry or null if
2098 no element of TABLE contains SYMBOL. */
2100 static struct table_entry
*
2101 face_value (table
, dim
, symbol
)
2102 struct table_entry
*table
;
2108 xassert (SYMBOLP (symbol
));
2110 for (i
= 0; i
< dim
; ++i
)
2111 if (EQ (*table
[i
].symbol
, symbol
))
2114 return i
< dim
? table
+ i
: NULL
;
2118 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2119 entries. Value is -1 if SYMBOL is not found in TABLE. */
2122 face_numeric_value (table
, dim
, symbol
)
2123 struct table_entry
*table
;
2127 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2128 return p
? p
->numeric
: -1;
2132 /* Return a numeric value representing the weight specified by Lisp
2133 symbol WEIGHT. Value is one of the enumerators of enum
2137 face_numeric_weight (weight
)
2140 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2144 /* Return a numeric value representing the slant specified by Lisp
2145 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2148 face_numeric_slant (slant
)
2151 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2155 /* Return a numeric value representing the swidth specified by Lisp
2156 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2159 face_numeric_swidth (width
)
2162 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2166 #ifdef HAVE_WINDOW_SYSTEM
2168 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2172 struct font_name
*font
;
2174 /* Function split_font_name converts fields to lower-case, so there
2175 is no need to use tolower here. */
2176 return *font
->fields
[XLFD_SPACING
] != 'p';
2180 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2182 The actual height of the font when displayed on F depends on the
2183 resolution of both the font and frame. For example, a 10pt font
2184 designed for a 100dpi display will display larger than 10pt on a
2185 75dpi display. (It's not unusual to use fonts not designed for the
2186 display one is using. For example, some intlfonts are available in
2187 72dpi versions, only.)
2189 Value is the real point size of FONT on frame F, or 0 if it cannot
2193 xlfd_point_size (f
, font
)
2195 struct font_name
*font
;
2197 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2198 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2202 if (*pixel_field
== '[')
2204 /* The pixel size field is `[A B C D]' which specifies
2205 a transformation matrix.
2211 by which all glyphs of the font are transformed. The spec
2212 says that s scalar value N for the pixel size is equivalent
2213 to A = N * resx/resy, B = C = 0, D = N. */
2214 char *start
= pixel_field
+ 1, *end
;
2218 for (i
= 0; i
< 4; ++i
)
2220 matrix
[i
] = strtod (start
, &end
);
2227 pixel
= atoi (pixel_field
);
2232 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2238 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2239 of frame F. This function is used to guess a point size of font
2240 when only the pixel height of the font is available. */
2243 pixel_point_size (f
, pixel
)
2247 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2251 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2252 point size of one dot. */
2253 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2254 int_pt
= real_pt
+ 0.5;
2260 /* Return a rescaling ratio of a font of NAME. */
2263 font_rescale_ratio (name
)
2266 Lisp_Object tail
, elt
;
2268 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2271 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2272 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2273 return XFLOAT_DATA (XCDR (elt
));
2279 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2280 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2281 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2282 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2283 zero if the font name doesn't have the format we expect. The
2284 expected format is a font name that starts with a `-' and has
2285 XLFD_LAST fields separated by `-'. */
2288 split_font_name (f
, font
, numeric_p
)
2290 struct font_name
*font
;
2295 double rescale_ratio
;
2298 /* This must be done before splitting the font name. */
2299 rescale_ratio
= font_rescale_ratio (font
->name
);
2301 if (*font
->name
== '-')
2303 char *p
= xstrlwr (font
->name
) + 1;
2305 while (i
< XLFD_LAST
)
2307 font
->fields
[i
] = p
;
2310 /* Pixel and point size may be of the form `[....]'. For
2311 BNF, see XLFD spec, chapter 4. Negative values are
2312 indicated by tilde characters which we replace with
2313 `-' characters, here. */
2315 && (i
- 1 == XLFD_PIXEL_SIZE
2316 || i
- 1 == XLFD_POINT_SIZE
))
2321 for (++p
; *p
&& *p
!= ']'; ++p
)
2325 /* Check that the matrix contains 4 floating point
2327 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2330 if (strtod (start
, &end
) == 0 && start
== end
)
2337 while (*p
&& *p
!= '-')
2347 success_p
= i
== XLFD_LAST
;
2349 /* If requested, and font name was in the expected format,
2350 compute numeric values for some fields. */
2351 if (numeric_p
&& success_p
)
2353 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2354 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2355 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2356 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2357 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2358 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2359 font
->rescale_ratio
= rescale_ratio
;
2362 /* Initialize it to zero. It will be overridden by font_list while
2363 trying alternate registries. */
2364 font
->registry_priority
= 0;
2370 /* Build an XLFD font name from font name fields in FONT. Value is a
2371 pointer to the font name, which is allocated via xmalloc. */
2374 build_font_name (font
)
2375 struct font_name
*font
;
2379 char *font_name
= (char *) xmalloc (size
);
2380 int total_length
= 0;
2382 for (i
= 0; i
< XLFD_LAST
; ++i
)
2384 /* Add 1 because of the leading `-'. */
2385 int len
= strlen (font
->fields
[i
]) + 1;
2387 /* Reallocate font_name if necessary. Add 1 for the final
2389 if (total_length
+ len
+ 1 >= size
)
2391 int new_size
= max (2 * size
, size
+ len
+ 1);
2392 int sz
= new_size
* sizeof *font_name
;
2393 font_name
= (char *) xrealloc (font_name
, sz
);
2397 font_name
[total_length
] = '-';
2398 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2399 total_length
+= len
;
2402 font_name
[total_length
] = 0;
2407 /* Free an array FONTS of N font_name structures. This frees FONTS
2408 itself and all `name' fields in its elements. */
2411 free_font_names (fonts
, n
)
2412 struct font_name
*fonts
;
2416 xfree (fonts
[--n
].name
);
2421 /* Sort vector FONTS of font_name structures which contains NFONTS
2422 elements using qsort and comparison function CMPFN. F is the frame
2423 on which the fonts will be used. The global variable font_frame
2424 is temporarily set to F to make it available in CMPFN. */
2427 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2429 struct font_name
*fonts
;
2431 int (*cmpfn
) P_ ((const void *, const void *));
2434 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2439 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2440 display in x_display_list. FONTS is a pointer to a vector of
2441 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2442 alternative patterns from Valternate_fontname_alist if no fonts are
2443 found matching PATTERN.
2445 For all fonts found, set FONTS[i].name to the name of the font,
2446 allocated via xmalloc, and split font names into fields. Ignore
2447 fonts that we can't parse. Value is the number of fonts found. */
2450 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2453 struct font_name
**pfonts
;
2454 int nfonts
, try_alternatives_p
;
2458 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2459 better to do it the other way around. */
2461 Lisp_Object lpattern
, tem
;
2462 struct font_name
*fonts
= 0;
2463 int num_fonts
= nfonts
;
2466 lpattern
= build_string (pattern
);
2468 /* Get the list of fonts matching PATTERN. */
2471 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2474 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2477 if (nfonts
< 0 && CONSP (lfonts
))
2478 num_fonts
= XFASTINT (Flength (lfonts
));
2480 /* Make a copy of the font names we got from X, and
2481 split them into fields. */
2483 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2485 Lisp_Object elt
, tail
;
2486 const char *name
= SDATA (XCAR (tem
));
2488 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2489 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2493 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2504 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2508 /* Make a copy of the font name. */
2509 fonts
[n
].name
= xstrdup (name
);
2511 if (split_font_name (f
, fonts
+ n
, 1))
2513 if (font_scalable_p (fonts
+ n
)
2514 && !may_use_scalable_font_p (name
))
2517 xfree (fonts
[n
].name
);
2523 xfree (fonts
[n
].name
);
2526 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2527 if (n
== 0 && try_alternatives_p
)
2529 Lisp_Object list
= Valternate_fontname_alist
;
2537 while (CONSP (list
))
2539 Lisp_Object entry
= XCAR (list
);
2541 && STRINGP (XCAR (entry
))
2542 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2549 Lisp_Object patterns
= XCAR (list
);
2552 while (CONSP (patterns
)
2553 /* If list is screwed up, give up. */
2554 && (name
= XCAR (patterns
),
2556 /* Ignore patterns equal to PATTERN because we tried that
2557 already with no success. */
2558 && (strcmp (SDATA (name
), pattern
) == 0
2559 || (n
= x_face_list_fonts (f
, SDATA (name
),
2562 patterns
= XCDR (patterns
);
2570 /* Check if a font matching pattern_offset_t on frame F is available
2571 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2572 a font name pattern is generated from FAMILY and REGISTRY. */
2575 face_font_available_p (f
, pattern
)
2577 Lisp_Object pattern
;
2581 if (! STRINGP (pattern
))
2583 Lisp_Object family
, registry
;
2584 char *family_str
, *registry_str
, *pattern_str
;
2586 CHECK_CONS (pattern
);
2587 family
= XCAR (pattern
);
2592 CHECK_STRING (family
);
2593 family_str
= (char *) SDATA (family
);
2595 registry
= XCDR (pattern
);
2596 if (NILP (registry
))
2600 CHECK_STRING (registry
);
2601 registry_str
= (char *) SDATA (registry
);
2604 pattern_str
= (char *) alloca (strlen (family_str
)
2605 + strlen (registry_str
)
2607 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2608 strcat (pattern_str
, family_str
);
2609 strcat (pattern_str
, "-*-");
2610 strcat (pattern_str
, registry_str
);
2611 if (!index (registry_str
, '-'))
2613 if (registry_str
[strlen (registry_str
) - 1] == '*')
2614 strcat (pattern_str
, "-*");
2616 strcat (pattern_str
, "*-*");
2618 pattern
= build_string (pattern_str
);
2621 /* Get the list of fonts matching PATTERN. */
2624 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2627 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2629 return XINT (Flength (fonts
));
2633 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2634 using comparison function CMPFN. Value is the number of fonts
2635 found. If value is non-zero, *FONTS is set to a vector of
2636 font_name structures allocated from the heap containing matching
2637 fonts. Each element of *FONTS contains a name member that is also
2638 allocated from the heap. Font names in these structures are split
2639 into fields. Use free_font_names to free such an array. */
2642 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2645 int (*cmpfn
) P_ ((const void *, const void *));
2646 struct font_name
**fonts
;
2650 /* Get the list of fonts matching pattern. 100 should suffice. */
2651 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2652 if (INTEGERP (Vfont_list_limit
))
2653 nfonts
= XINT (Vfont_list_limit
);
2656 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2658 /* Sort the resulting array and return it in *FONTS. If no
2659 fonts were found, make sure to set *FONTS to null. */
2661 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2672 /* Compare two font_name structures *A and *B. Value is analogous to
2673 strcmp. Sort order is given by the global variable
2674 font_sort_order. Font names are sorted so that, everything else
2675 being equal, fonts with a resolution closer to that of the frame on
2676 which they are used are listed first. The global variable
2677 font_frame is the frame on which we operate. */
2680 cmp_font_names (a
, b
)
2683 struct font_name
*x
= (struct font_name
*) a
;
2684 struct font_name
*y
= (struct font_name
*) b
;
2687 /* All strings have been converted to lower-case by split_font_name,
2688 so we can use strcmp here. */
2689 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2694 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2696 int j
= font_sort_order
[i
];
2697 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2702 /* Everything else being equal, we prefer fonts with an
2703 y-resolution closer to that of the frame. */
2704 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2705 int x_resy
= x
->numeric
[XLFD_RESY
];
2706 int y_resy
= y
->numeric
[XLFD_RESY
];
2707 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2715 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2716 is non-nil list fonts matching that pattern. Otherwise, if
2717 REGISTRY is non-nil return only fonts with that registry, otherwise
2718 return fonts of any registry. Set *FONTS to a vector of font_name
2719 structures allocated from the heap containing the fonts found.
2720 Value is the number of fonts found. */
2723 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2725 Lisp_Object pattern
, family
, registry
;
2726 struct font_name
**fonts
;
2728 char *pattern_str
, *family_str
, *registry_str
;
2732 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2733 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2735 pattern_str
= (char *) alloca (strlen (family_str
)
2736 + strlen (registry_str
)
2738 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2739 strcat (pattern_str
, family_str
);
2740 strcat (pattern_str
, "-*-");
2741 strcat (pattern_str
, registry_str
);
2742 if (!index (registry_str
, '-'))
2744 if (registry_str
[strlen (registry_str
) - 1] == '*')
2745 strcat (pattern_str
, "-*");
2747 strcat (pattern_str
, "*-*");
2751 pattern_str
= (char *) SDATA (pattern
);
2753 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2757 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2758 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2759 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2762 static struct font_name
*
2763 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2764 struct font_name
*fonts1
, *fonts2
;
2765 int nfonts1
, nfonts2
;
2767 int new_nfonts
= nfonts1
+ nfonts2
;
2768 struct font_name
*new_fonts
;
2770 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2771 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2772 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2779 /* Get a sorted list of fonts of family FAMILY on frame F.
2781 If PATTERN is non-nil list fonts matching that pattern.
2783 If REGISTRY is non-nil, return fonts with that registry and the
2784 alternative registries from Vface_alternative_font_registry_alist.
2786 If REGISTRY is nil return fonts of any registry.
2788 Set *FONTS to a vector of font_name structures allocated from the
2789 heap containing the fonts found. Value is the number of fonts
2793 font_list (f
, pattern
, family
, registry
, fonts
)
2795 Lisp_Object pattern
, family
, registry
;
2796 struct font_name
**fonts
;
2798 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2800 if (!NILP (registry
)
2801 && CONSP (Vface_alternative_font_registry_alist
))
2805 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2810 for (alter
= XCDR (alter
), reg_prio
= 1;
2812 alter
= XCDR (alter
), reg_prio
++)
2813 if (STRINGP (XCAR (alter
)))
2816 struct font_name
*fonts2
;
2818 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2820 for (i
= 0; i
< nfonts2
; i
++)
2821 fonts2
[i
].registry_priority
= reg_prio
;
2822 *fonts
= (nfonts
> 0
2823 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2834 /* Remove elements from LIST whose cars are `equal'. Called from
2835 x-family-fonts and x-font-family-list to remove duplicate font
2839 remove_duplicates (list
)
2842 Lisp_Object tail
= list
;
2844 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2846 Lisp_Object next
= XCDR (tail
);
2847 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2848 XSETCDR (tail
, XCDR (next
));
2855 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2856 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2857 If FAMILY is omitted or nil, list all families.
2858 Otherwise, FAMILY must be a string, possibly containing wildcards
2860 If FRAME is omitted or nil, use the selected frame.
2861 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2862 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2863 FAMILY is the font family name. POINT-SIZE is the size of the
2864 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2865 width, weight and slant of the font. These symbols are the same as for
2866 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2867 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2868 giving the registry and encoding of the font.
2869 The result list is sorted according to the current setting of
2870 the face font sort order. */)
2872 Lisp_Object family
, frame
;
2874 struct frame
*f
= check_x_frame (frame
);
2875 struct font_name
*fonts
;
2878 struct gcpro gcpro1
;
2881 CHECK_STRING (family
);
2885 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2886 for (i
= nfonts
- 1; i
>= 0; --i
)
2888 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2891 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2892 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2893 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2894 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2895 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2896 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2897 tem
= build_font_name (fonts
+ i
);
2898 ASET (v
, 6, build_string (tem
));
2899 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2900 fonts
[i
].fields
[XLFD_ENCODING
]);
2901 ASET (v
, 7, build_string (tem
));
2904 result
= Fcons (v
, result
);
2907 remove_duplicates (result
);
2908 free_font_names (fonts
, nfonts
);
2914 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2916 doc
: /* Return a list of available font families on FRAME.
2917 If FRAME is omitted or nil, use the selected frame.
2918 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2919 is a font family, and FIXED-P is non-nil if fonts of that family
2920 are fixed-pitch. */)
2924 struct frame
*f
= check_x_frame (frame
);
2926 struct font_name
*fonts
;
2928 struct gcpro gcpro1
;
2929 int count
= SPECPDL_INDEX ();
2931 /* Let's consider all fonts. */
2932 specbind (intern ("font-list-limit"), make_number (-1));
2933 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2937 for (i
= nfonts
- 1; i
>= 0; --i
)
2938 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2939 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2942 remove_duplicates (result
);
2943 free_font_names (fonts
, nfonts
);
2945 return unbind_to (count
, result
);
2949 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2950 doc
: /* Return a list of the names of available fonts matching PATTERN.
2951 If optional arguments FACE and FRAME are specified, return only fonts
2952 the same size as FACE on FRAME.
2953 PATTERN is a string, perhaps with wildcard characters;
2954 the * character matches any substring, and
2955 the ? character matches any single character.
2956 PATTERN is case-insensitive.
2957 FACE is a face name--a symbol.
2959 The return value is a list of strings, suitable as arguments to
2962 Fonts Emacs can't use may or may not be excluded
2963 even if they match PATTERN and FACE.
2964 The optional fourth argument MAXIMUM sets a limit on how many
2965 fonts to match. The first MAXIMUM fonts are reported.
2966 The optional fifth argument WIDTH, if specified, is a number of columns
2967 occupied by a character of a font. In that case, return only fonts
2968 the WIDTH times as wide as FACE on FRAME. */)
2969 (pattern
, face
, frame
, maximum
, width
)
2970 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2977 CHECK_STRING (pattern
);
2983 CHECK_NATNUM (maximum
);
2984 maxnames
= XINT (maximum
);
2988 CHECK_NUMBER (width
);
2990 /* We can't simply call check_x_frame because this function may be
2991 called before any frame is created. */
2992 f
= frame_or_selected_frame (frame
, 2);
2993 if (!FRAME_WINDOW_P (f
))
2995 /* Perhaps we have not yet created any frame. */
3000 /* Determine the width standard for comparison with the fonts we find. */
3006 /* This is of limited utility since it works with character
3007 widths. Keep it for compatibility. --gerd. */
3008 int face_id
= lookup_named_face (f
, face
, 0);
3009 struct face
*face
= (face_id
< 0
3011 : FACE_FROM_ID (f
, face_id
));
3014 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3015 not maximum as on X. Redefine here. */
3017 #define FONT_WIDTH FONT_MAX_WIDTH
3020 if (face
&& face
->font
)
3021 size
= FONT_WIDTH (face
->font
);
3023 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3026 size
*= XINT (width
);
3030 Lisp_Object args
[2];
3032 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3034 /* We don't have to check fontsets. */
3036 args
[1] = list_fontsets (f
, pattern
, size
);
3037 return Fnconc (2, args
);
3041 #endif /* HAVE_WINDOW_SYSTEM */
3045 /***********************************************************************
3047 ***********************************************************************/
3049 /* Access face attributes of face LFACE, a Lisp vector. */
3051 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3052 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3053 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3054 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3055 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3056 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3057 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3058 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3059 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3060 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3061 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3062 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3063 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3064 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3065 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3066 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3068 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3069 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3071 #define LFACEP(LFACE) \
3073 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3074 && EQ (AREF (LFACE, 0), Qface))
3079 /* Check consistency of Lisp face attribute vector ATTRS. */
3082 check_lface_attrs (attrs
)
3085 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3086 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3087 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3088 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3089 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3090 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3091 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3092 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3093 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3094 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3095 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3096 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3097 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3098 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3099 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3100 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3101 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3102 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3103 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3104 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3105 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3106 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3107 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3108 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3109 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3110 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3111 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3112 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3113 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3114 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3115 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3116 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3117 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3118 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3119 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3120 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3121 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3122 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3123 #ifdef HAVE_WINDOW_SYSTEM
3124 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3125 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3126 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3127 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3128 || NILP (attrs
[LFACE_FONT_INDEX
])
3129 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3134 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3142 xassert (LFACEP (lface
));
3143 check_lface_attrs (XVECTOR (lface
)->contents
);
3147 #else /* GLYPH_DEBUG == 0 */
3149 #define check_lface_attrs(attrs) (void) 0
3150 #define check_lface(lface) (void) 0
3152 #endif /* GLYPH_DEBUG == 0 */
3156 /* Face-merge cycle checking. */
3158 /* A `named merge point' is simply a point during face-merging where we
3159 look up a face by name. We keep a stack of which named lookups we're
3160 currently processing so that we can easily detect cycles, using a
3161 linked- list of struct named_merge_point structures, typically
3162 allocated on the stack frame of the named lookup functions which are
3163 active (so no consing is required). */
3164 struct named_merge_point
3166 Lisp_Object face_name
;
3167 struct named_merge_point
*prev
;
3171 /* If a face merging cycle is detected for FACE_NAME, return 0,
3172 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3173 FACE_NAME, as the head of the linked list pointed to by
3174 NAMED_MERGE_POINTS, and return 1. */
3177 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3178 Lisp_Object face_name
,
3179 struct named_merge_point
**named_merge_points
)
3181 struct named_merge_point
*prev
;
3183 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3184 if (EQ (face_name
, prev
->face_name
))
3187 new_named_merge_point
->face_name
= face_name
;
3188 new_named_merge_point
->prev
= *named_merge_points
;
3190 *named_merge_points
= new_named_merge_point
;
3198 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3199 to make it a symvol. If FACE_NAME is an alias for another face,
3200 return that face's name. */
3203 resolve_face_name (face_name
)
3204 Lisp_Object face_name
;
3206 Lisp_Object aliased
;
3208 if (STRINGP (face_name
))
3209 face_name
= intern (SDATA (face_name
));
3211 while (SYMBOLP (face_name
))
3213 aliased
= Fget (face_name
, Qface_alias
);
3217 face_name
= aliased
;
3224 /* Return the face definition of FACE_NAME on frame F. F null means
3225 return the definition for new frames. FACE_NAME may be a string or
3226 a symbol (apparently Emacs 20.2 allowed strings as face names in
3227 face text properties; Ediff uses that). If FACE_NAME is an alias
3228 for another face, return that face's definition. If SIGNAL_P is
3229 non-zero, signal an error if FACE_NAME is not a valid face name.
3230 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3233 static INLINE Lisp_Object
3234 lface_from_face_name (f
, face_name
, signal_p
)
3236 Lisp_Object face_name
;
3241 face_name
= resolve_face_name (face_name
);
3244 lface
= assq_no_quit (face_name
, f
->face_alist
);
3246 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3249 lface
= XCDR (lface
);
3251 signal_error ("Invalid face", face_name
);
3253 check_lface (lface
);
3258 /* Get face attributes of face FACE_NAME from frame-local faces on
3259 frame F. Store the resulting attributes in ATTRS which must point
3260 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3261 is non-zero, signal an error if FACE_NAME does not name a face.
3262 Otherwise, value is zero if FACE_NAME is not a face. */
3265 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3267 Lisp_Object face_name
;
3274 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3277 bcopy (XVECTOR (lface
)->contents
, attrs
,
3278 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3288 /* Non-zero if all attributes in face attribute vector ATTRS are
3289 specified, i.e. are non-nil. */
3292 lface_fully_specified_p (attrs
)
3297 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3298 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3299 && i
!= LFACE_AVGWIDTH_INDEX
)
3300 if (UNSPECIFIEDP (attrs
[i
])
3302 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3303 always unspecified. */
3304 && i
!= LFACE_STIPPLE_INDEX
3309 return i
== LFACE_VECTOR_SIZE
;
3312 #ifdef HAVE_WINDOW_SYSTEM
3314 /* Set font-related attributes of Lisp face LFACE from the fullname of
3315 the font opened by FONTNAME. If FORCE_P is zero, set only
3316 unspecified attributes of LFACE. The exception is `font'
3317 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3319 If FONTNAME is not available on frame F,
3320 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3321 If the fullname is not in a valid XLFD format,
3322 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3323 in LFACE and return 1.
3324 Otherwise, return 1. */
3327 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3330 Lisp_Object fontname
;
3331 int force_p
, may_fail_p
;
3333 struct font_name font
;
3338 char *font_name
= SDATA (fontname
);
3339 struct font_info
*font_info
;
3341 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3342 fontset
= fs_query_fontset (fontname
, 0);
3344 font_name
= SDATA (fontset_ascii (fontset
));
3346 /* Check if FONT_NAME is surely available on the system. Usually
3347 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3348 returns quickly. But, even if FONT_NAME is not yet cached,
3349 caching it now is not futail because we anyway load the font
3352 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3362 font
.name
= STRDUPA (font_info
->full_name
);
3363 have_xlfd_p
= split_font_name (f
, &font
, 1);
3365 /* Set attributes only if unspecified, otherwise face defaults for
3366 new frames would never take effect. If we couldn't get a font
3367 name conforming to XLFD, set normal values. */
3369 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3374 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3375 + strlen (font
.fields
[XLFD_FOUNDRY
])
3377 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3378 font
.fields
[XLFD_FAMILY
]);
3379 val
= build_string (buffer
);
3382 val
= build_string ("*");
3383 LFACE_FAMILY (lface
) = val
;
3386 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3389 pt
= xlfd_point_size (f
, &font
);
3391 pt
= pixel_point_size (f
, font_info
->height
* 10);
3393 LFACE_HEIGHT (lface
) = make_number (pt
);
3396 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3397 LFACE_SWIDTH (lface
)
3398 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3400 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3401 LFACE_AVGWIDTH (lface
)
3403 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3406 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3407 LFACE_WEIGHT (lface
)
3408 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3410 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3412 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3414 LFACE_FONT (lface
) = fontname
;
3419 #endif /* HAVE_WINDOW_SYSTEM */
3422 /* Merges the face height FROM with the face height TO, and returns the
3423 merged height. If FROM is an invalid height, then INVALID is
3424 returned instead. FROM and TO may be either absolute face heights or
3425 `relative' heights; the returned value is always an absolute height
3426 unless both FROM and TO are relative. GCPRO is a lisp value that
3427 will be protected from garbage-collection if this function makes a
3431 merge_face_heights (from
, to
, invalid
, gcpro
)
3432 Lisp_Object from
, to
, invalid
, gcpro
;
3434 Lisp_Object result
= invalid
;
3436 if (INTEGERP (from
))
3437 /* FROM is absolute, just use it as is. */
3439 else if (FLOATP (from
))
3440 /* FROM is a scale, use it to adjust TO. */
3443 /* relative X absolute => absolute */
3444 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3445 else if (FLOATP (to
))
3446 /* relative X relative => relative */
3447 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3448 else if (UNSPECIFIEDP (to
))
3451 else if (FUNCTIONP (from
))
3452 /* FROM is a function, which use to adjust TO. */
3454 /* Call function with current height as argument.
3455 From is the new height. */
3456 Lisp_Object args
[2];
3457 struct gcpro gcpro1
;
3463 result
= safe_call (2, args
);
3467 /* Ensure that if TO was absolute, so is the result. */
3468 if (INTEGERP (to
) && !INTEGERP (result
))
3476 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3477 store the resulting attributes in TO, which must be already be
3478 completely specified and contain only absolute attributes. Every
3479 specified attribute of FROM overrides the corresponding attribute of
3480 TO; relative attributes in FROM are merged with the absolute value in
3481 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3482 loops in face inheritance; it should be 0 when called from other
3486 merge_face_vectors (f
, from
, to
, named_merge_points
)
3488 Lisp_Object
*from
, *to
;
3489 struct named_merge_point
*named_merge_points
;
3493 /* If FROM inherits from some other faces, merge their attributes into
3494 TO before merging FROM's direct attributes. Note that an :inherit
3495 attribute of `unspecified' is the same as one of nil; we never
3496 merge :inherit attributes, so nil is more correct, but lots of
3497 other code uses `unspecified' as a generic value for face attributes. */
3498 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3499 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3500 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3502 /* If TO specifies a :font attribute, and FROM specifies some
3503 font-related attribute, we need to clear TO's :font attribute
3504 (because it will be inconsistent with whatever FROM specifies, and
3505 FROM takes precedence). */
3506 if (!NILP (to
[LFACE_FONT_INDEX
])
3507 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3508 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3509 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3510 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3511 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3512 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3513 to
[LFACE_FONT_INDEX
] = Qnil
;
3515 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3516 if (!UNSPECIFIEDP (from
[i
]))
3518 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3519 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
],
3520 named_merge_points
);
3525 /* TO is always an absolute face, which should inherit from nothing.
3526 We blindly copy the :inherit attribute above and fix it up here. */
3527 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3530 /* Merge the named face FACE_NAME on frame F, into the vector of face
3531 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3532 inheritance. Returns true if FACE_NAME is a valid face name and
3533 merging succeeded. */
3536 merge_named_face (f
, face_name
, to
, named_merge_points
)
3538 Lisp_Object face_name
;
3540 struct named_merge_point
*named_merge_points
;
3542 struct named_merge_point named_merge_point
;
3544 if (push_named_merge_point (&named_merge_point
,
3545 face_name
, &named_merge_points
))
3547 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3548 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3551 merge_face_vectors (f
, from
, to
, named_merge_points
);
3560 /* Merge face attributes from the lisp `face reference' FACE_REF on
3561 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3562 problems with FACE_REF cause an error message to be shown. Return
3563 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3564 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3565 list structure; it may be 0 for most callers.
3567 FACE_REF may be a single face specification or a list of such
3568 specifications. Each face specification can be:
3570 1. A symbol or string naming a Lisp face.
3572 2. A property list of the form (KEYWORD VALUE ...) where each
3573 KEYWORD is a face attribute name, and value is an appropriate value
3576 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3577 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3578 for compatibility with 20.2.
3580 Face specifications earlier in lists take precedence over later
3584 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3586 Lisp_Object face_ref
;
3589 struct named_merge_point
*named_merge_points
;
3591 int ok
= 1; /* Succeed without an error? */
3593 if (CONSP (face_ref
))
3595 Lisp_Object first
= XCAR (face_ref
);
3597 if (EQ (first
, Qforeground_color
)
3598 || EQ (first
, Qbackground_color
))
3600 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3601 . COLOR). COLOR must be a string. */
3602 Lisp_Object color_name
= XCDR (face_ref
);
3603 Lisp_Object color
= first
;
3605 if (STRINGP (color_name
))
3607 if (EQ (color
, Qforeground_color
))
3608 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3610 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3615 add_to_log ("Invalid face color", color_name
, Qnil
);
3619 else if (SYMBOLP (first
)
3620 && *SDATA (SYMBOL_NAME (first
)) == ':')
3622 /* Assume this is the property list form. */
3623 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3625 Lisp_Object keyword
= XCAR (face_ref
);
3626 Lisp_Object value
= XCAR (XCDR (face_ref
));
3629 if (EQ (keyword
, QCfamily
))
3631 if (STRINGP (value
))
3632 to
[LFACE_FAMILY_INDEX
] = value
;
3636 else if (EQ (keyword
, QCheight
))
3638 Lisp_Object new_height
=
3639 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3642 if (! NILP (new_height
))
3643 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3647 else if (EQ (keyword
, QCweight
))
3650 && face_numeric_weight (value
) >= 0)
3651 to
[LFACE_WEIGHT_INDEX
] = value
;
3655 else if (EQ (keyword
, QCslant
))
3658 && face_numeric_slant (value
) >= 0)
3659 to
[LFACE_SLANT_INDEX
] = value
;
3663 else if (EQ (keyword
, QCunderline
))
3668 to
[LFACE_UNDERLINE_INDEX
] = value
;
3672 else if (EQ (keyword
, QCoverline
))
3677 to
[LFACE_OVERLINE_INDEX
] = value
;
3681 else if (EQ (keyword
, QCstrike_through
))
3686 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3690 else if (EQ (keyword
, QCbox
))
3693 value
= make_number (1);
3694 if (INTEGERP (value
)
3698 to
[LFACE_BOX_INDEX
] = value
;
3702 else if (EQ (keyword
, QCinverse_video
)
3703 || EQ (keyword
, QCreverse_video
))
3705 if (EQ (value
, Qt
) || NILP (value
))
3706 to
[LFACE_INVERSE_INDEX
] = value
;
3710 else if (EQ (keyword
, QCforeground
))
3712 if (STRINGP (value
))
3713 to
[LFACE_FOREGROUND_INDEX
] = value
;
3717 else if (EQ (keyword
, QCbackground
))
3719 if (STRINGP (value
))
3720 to
[LFACE_BACKGROUND_INDEX
] = value
;
3724 else if (EQ (keyword
, QCstipple
))
3726 #ifdef HAVE_X_WINDOWS
3727 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3728 if (!NILP (pixmap_p
))
3729 to
[LFACE_STIPPLE_INDEX
] = value
;
3734 else if (EQ (keyword
, QCwidth
))
3737 && face_numeric_swidth (value
) >= 0)
3738 to
[LFACE_SWIDTH_INDEX
] = value
;
3742 else if (EQ (keyword
, QCinherit
))
3744 /* This is not really very useful; it's just like a
3745 normal face reference. */
3746 if (! merge_face_ref (f
, value
, to
,
3747 err_msgs
, named_merge_points
))
3755 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
3759 face_ref
= XCDR (XCDR (face_ref
));
3764 /* This is a list of face refs. Those at the beginning of the
3765 list take precedence over what follows, so we have to merge
3766 from the end backwards. */
3767 Lisp_Object next
= XCDR (face_ref
);
3770 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
3772 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
3778 /* FACE_REF ought to be a face name. */
3779 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
3780 if (!ok
&& err_msgs
)
3781 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
3788 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3789 Sinternal_make_lisp_face
, 1, 2, 0,
3790 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3791 If FACE was not known as a face before, create a new one.
3792 If optional argument FRAME is specified, make a frame-local face
3793 for that frame. Otherwise operate on the global face definition.
3794 Value is a vector of face attributes. */)
3796 Lisp_Object face
, frame
;
3798 Lisp_Object global_lface
, lface
;
3802 CHECK_SYMBOL (face
);
3803 global_lface
= lface_from_face_name (NULL
, face
, 0);
3807 CHECK_LIVE_FRAME (frame
);
3809 lface
= lface_from_face_name (f
, face
, 0);
3812 f
= NULL
, lface
= Qnil
;
3814 /* Add a global definition if there is none. */
3815 if (NILP (global_lface
))
3817 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3819 AREF (global_lface
, 0) = Qface
;
3820 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3821 Vface_new_frame_defaults
);
3823 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3824 face id to Lisp face is given by the vector lface_id_to_name.
3825 The mapping from Lisp face to Lisp face id is given by the
3826 property `face' of the Lisp face name. */
3827 if (next_lface_id
== lface_id_to_name_size
)
3829 int new_size
= max (50, 2 * lface_id_to_name_size
);
3830 int sz
= new_size
* sizeof *lface_id_to_name
;
3831 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3832 lface_id_to_name_size
= new_size
;
3835 lface_id_to_name
[next_lface_id
] = face
;
3836 Fput (face
, Qface
, make_number (next_lface_id
));
3840 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3841 AREF (global_lface
, i
) = Qunspecified
;
3843 /* Add a frame-local definition. */
3848 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3850 AREF (lface
, 0) = Qface
;
3851 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3854 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3855 AREF (lface
, i
) = Qunspecified
;
3858 lface
= global_lface
;
3860 /* Changing a named face means that all realized faces depending on
3861 that face are invalid. Since we cannot tell which realized faces
3862 depend on the face, make sure they are all removed. This is done
3863 by incrementing face_change_count. The next call to
3864 init_iterator will then free realized faces. */
3865 ++face_change_count
;
3866 ++windows_or_buffers_changed
;
3868 xassert (LFACEP (lface
));
3869 check_lface (lface
);
3874 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3875 Sinternal_lisp_face_p
, 1, 2, 0,
3876 doc
: /* Return non-nil if FACE names a face.
3877 If optional second parameter FRAME is non-nil, check for the
3878 existence of a frame-local face with name FACE on that frame.
3879 Otherwise check for the existence of a global face. */)
3881 Lisp_Object face
, frame
;
3887 CHECK_LIVE_FRAME (frame
);
3888 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3891 lface
= lface_from_face_name (NULL
, face
, 0);
3897 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3898 Sinternal_copy_lisp_face
, 4, 4, 0,
3899 doc
: /* Copy face FROM to TO.
3900 If FRAME is t, copy the global face definition of FROM.
3901 Otherwise, copy the frame-local definition of FROM on FRAME.
3902 If NEW-FRAME is a frame, copy that data into the frame-local
3903 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
3904 FRAME controls where the data is copied to.
3906 The value is TO. */)
3907 (from
, to
, frame
, new_frame
)
3908 Lisp_Object from
, to
, frame
, new_frame
;
3910 Lisp_Object lface
, copy
;
3912 CHECK_SYMBOL (from
);
3917 /* Copy global definition of FROM. We don't make copies of
3918 strings etc. because 20.2 didn't do it either. */
3919 lface
= lface_from_face_name (NULL
, from
, 1);
3920 copy
= Finternal_make_lisp_face (to
, Qnil
);
3924 /* Copy frame-local definition of FROM. */
3925 if (NILP (new_frame
))
3927 CHECK_LIVE_FRAME (frame
);
3928 CHECK_LIVE_FRAME (new_frame
);
3929 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3930 copy
= Finternal_make_lisp_face (to
, new_frame
);
3933 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3934 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3936 /* Changing a named face means that all realized faces depending on
3937 that face are invalid. Since we cannot tell which realized faces
3938 depend on the face, make sure they are all removed. This is done
3939 by incrementing face_change_count. The next call to
3940 init_iterator will then free realized faces. */
3941 ++face_change_count
;
3942 ++windows_or_buffers_changed
;
3948 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3949 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3950 doc
: /* Set attribute ATTR of FACE to VALUE.
3951 FRAME being a frame means change the face on that frame.
3952 FRAME nil means change the face of the selected frame.
3953 FRAME t means change the default for new frames.
3954 FRAME 0 means change the face on all frames, and change the default
3956 (face
, attr
, value
, frame
)
3957 Lisp_Object face
, attr
, value
, frame
;
3960 Lisp_Object old_value
= Qnil
;
3961 /* Set 1 if ATTR is QCfont. */
3962 int font_attr_p
= 0;
3963 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3964 int font_related_attr_p
= 0;
3966 CHECK_SYMBOL (face
);
3967 CHECK_SYMBOL (attr
);
3969 face
= resolve_face_name (face
);
3971 /* If FRAME is 0, change face on all frames, and change the
3972 default for new frames. */
3973 if (INTEGERP (frame
) && XINT (frame
) == 0)
3976 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3977 FOR_EACH_FRAME (tail
, frame
)
3978 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3982 /* Set lface to the Lisp attribute vector of FACE. */
3984 lface
= lface_from_face_name (NULL
, face
, 1);
3988 frame
= selected_frame
;
3990 CHECK_LIVE_FRAME (frame
);
3991 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3993 /* If a frame-local face doesn't exist yet, create one. */
3995 lface
= Finternal_make_lisp_face (face
, frame
);
3998 if (EQ (attr
, QCfamily
))
4000 if (!UNSPECIFIEDP (value
))
4002 CHECK_STRING (value
);
4003 if (SCHARS (value
) == 0)
4004 signal_error ("Invalid face family", value
);
4006 old_value
= LFACE_FAMILY (lface
);
4007 LFACE_FAMILY (lface
) = value
;
4008 font_related_attr_p
= 1;
4010 else if (EQ (attr
, QCheight
))
4012 if (!UNSPECIFIEDP (value
))
4016 test
= (EQ (face
, Qdefault
)
4018 /* The default face must have an absolute size,
4019 otherwise, we do a test merge with a random
4020 height to see if VALUE's ok. */
4021 : merge_face_heights (value
, make_number (10), Qnil
, Qnil
));
4023 if (!INTEGERP (test
) || XINT (test
) <= 0)
4024 signal_error ("Invalid face height", value
);
4027 old_value
= LFACE_HEIGHT (lface
);
4028 LFACE_HEIGHT (lface
) = value
;
4029 font_related_attr_p
= 1;
4031 else if (EQ (attr
, QCweight
))
4033 if (!UNSPECIFIEDP (value
))
4035 CHECK_SYMBOL (value
);
4036 if (face_numeric_weight (value
) < 0)
4037 signal_error ("Invalid face weight", value
);
4039 old_value
= LFACE_WEIGHT (lface
);
4040 LFACE_WEIGHT (lface
) = value
;
4041 font_related_attr_p
= 1;
4043 else if (EQ (attr
, QCslant
))
4045 if (!UNSPECIFIEDP (value
))
4047 CHECK_SYMBOL (value
);
4048 if (face_numeric_slant (value
) < 0)
4049 signal_error ("Invalid face slant", value
);
4051 old_value
= LFACE_SLANT (lface
);
4052 LFACE_SLANT (lface
) = value
;
4053 font_related_attr_p
= 1;
4055 else if (EQ (attr
, QCunderline
))
4057 if (!UNSPECIFIEDP (value
))
4058 if ((SYMBOLP (value
)
4060 && !EQ (value
, Qnil
))
4061 /* Underline color. */
4063 && SCHARS (value
) == 0))
4064 signal_error ("Invalid face underline", value
);
4066 old_value
= LFACE_UNDERLINE (lface
);
4067 LFACE_UNDERLINE (lface
) = value
;
4069 else if (EQ (attr
, QCoverline
))
4071 if (!UNSPECIFIEDP (value
))
4072 if ((SYMBOLP (value
)
4074 && !EQ (value
, Qnil
))
4075 /* Overline color. */
4077 && SCHARS (value
) == 0))
4078 signal_error ("Invalid face overline", value
);
4080 old_value
= LFACE_OVERLINE (lface
);
4081 LFACE_OVERLINE (lface
) = value
;
4083 else if (EQ (attr
, QCstrike_through
))
4085 if (!UNSPECIFIEDP (value
))
4086 if ((SYMBOLP (value
)
4088 && !EQ (value
, Qnil
))
4089 /* Strike-through color. */
4091 && SCHARS (value
) == 0))
4092 signal_error ("Invalid face strike-through", value
);
4094 old_value
= LFACE_STRIKE_THROUGH (lface
);
4095 LFACE_STRIKE_THROUGH (lface
) = value
;
4097 else if (EQ (attr
, QCbox
))
4101 /* Allow t meaning a simple box of width 1 in foreground color
4104 value
= make_number (1);
4106 if (UNSPECIFIEDP (value
))
4108 else if (NILP (value
))
4110 else if (INTEGERP (value
))
4111 valid_p
= XINT (value
) != 0;
4112 else if (STRINGP (value
))
4113 valid_p
= SCHARS (value
) > 0;
4114 else if (CONSP (value
))
4130 if (EQ (k
, QCline_width
))
4132 if (!INTEGERP (v
) || XINT (v
) == 0)
4135 else if (EQ (k
, QCcolor
))
4137 if (!STRINGP (v
) || SCHARS (v
) == 0)
4140 else if (EQ (k
, QCstyle
))
4142 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4149 valid_p
= NILP (tem
);
4155 signal_error ("Invalid face box", value
);
4157 old_value
= LFACE_BOX (lface
);
4158 LFACE_BOX (lface
) = value
;
4160 else if (EQ (attr
, QCinverse_video
)
4161 || EQ (attr
, QCreverse_video
))
4163 if (!UNSPECIFIEDP (value
))
4165 CHECK_SYMBOL (value
);
4166 if (!EQ (value
, Qt
) && !NILP (value
))
4167 signal_error ("Invalid inverse-video face attribute value", value
);
4169 old_value
= LFACE_INVERSE (lface
);
4170 LFACE_INVERSE (lface
) = value
;
4172 else if (EQ (attr
, QCforeground
))
4174 if (!UNSPECIFIEDP (value
))
4176 /* Don't check for valid color names here because it depends
4177 on the frame (display) whether the color will be valid
4178 when the face is realized. */
4179 CHECK_STRING (value
);
4180 if (SCHARS (value
) == 0)
4181 signal_error ("Empty foreground color value", value
);
4183 old_value
= LFACE_FOREGROUND (lface
);
4184 LFACE_FOREGROUND (lface
) = value
;
4186 else if (EQ (attr
, QCbackground
))
4188 if (!UNSPECIFIEDP (value
))
4190 /* Don't check for valid color names here because it depends
4191 on the frame (display) whether the color will be valid
4192 when the face is realized. */
4193 CHECK_STRING (value
);
4194 if (SCHARS (value
) == 0)
4195 signal_error ("Empty background color value", value
);
4197 old_value
= LFACE_BACKGROUND (lface
);
4198 LFACE_BACKGROUND (lface
) = value
;
4200 else if (EQ (attr
, QCstipple
))
4202 #ifdef HAVE_X_WINDOWS
4203 if (!UNSPECIFIEDP (value
)
4205 && NILP (Fbitmap_spec_p (value
)))
4206 signal_error ("Invalid stipple attribute", value
);
4207 old_value
= LFACE_STIPPLE (lface
);
4208 LFACE_STIPPLE (lface
) = value
;
4209 #endif /* HAVE_X_WINDOWS */
4211 else if (EQ (attr
, QCwidth
))
4213 if (!UNSPECIFIEDP (value
))
4215 CHECK_SYMBOL (value
);
4216 if (face_numeric_swidth (value
) < 0)
4217 signal_error ("Invalid face width", value
);
4219 old_value
= LFACE_SWIDTH (lface
);
4220 LFACE_SWIDTH (lface
) = value
;
4221 font_related_attr_p
= 1;
4223 else if (EQ (attr
, QCfont
))
4225 #ifdef HAVE_WINDOW_SYSTEM
4226 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4228 /* Set font-related attributes of the Lisp face from an XLFD
4234 f
= SELECTED_FRAME ();
4236 f
= check_x_frame (frame
);
4238 if (!UNSPECIFIEDP (value
))
4240 CHECK_STRING (value
);
4242 /* VALUE may be a fontset name or an alias of fontset. In
4243 such a case, use the base fontset name. */
4244 tmp
= Fquery_fontset (value
, Qnil
);
4248 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4249 signal_error ("Invalid font or fontset name", value
);
4254 #endif /* HAVE_WINDOW_SYSTEM */
4256 else if (EQ (attr
, QCinherit
))
4259 if (SYMBOLP (value
))
4262 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4263 if (!SYMBOLP (XCAR (tail
)))
4266 LFACE_INHERIT (lface
) = value
;
4268 signal_error ("Invalid face inheritance", value
);
4270 else if (EQ (attr
, QCbold
))
4272 old_value
= LFACE_WEIGHT (lface
);
4273 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4274 font_related_attr_p
= 1;
4276 else if (EQ (attr
, QCitalic
))
4278 old_value
= LFACE_SLANT (lface
);
4279 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4280 font_related_attr_p
= 1;
4283 signal_error ("Invalid face attribute name", attr
);
4285 if (font_related_attr_p
4286 && !UNSPECIFIEDP (value
))
4287 /* If a font-related attribute other than QCfont is specified, the
4288 original `font' attribute nor that of default face is useless
4289 to determine a new font. Thus, we set it to nil so that font
4290 selection mechanism doesn't use it. */
4291 LFACE_FONT (lface
) = Qnil
;
4293 /* Changing a named face means that all realized faces depending on
4294 that face are invalid. Since we cannot tell which realized faces
4295 depend on the face, make sure they are all removed. This is done
4296 by incrementing face_change_count. The next call to
4297 init_iterator will then free realized faces. */
4299 && (EQ (attr
, QCfont
)
4300 || NILP (Fequal (old_value
, value
))))
4302 ++face_change_count
;
4303 ++windows_or_buffers_changed
;
4306 if (!UNSPECIFIEDP (value
)
4307 && NILP (Fequal (old_value
, value
)))
4313 if (EQ (face
, Qdefault
))
4315 #ifdef HAVE_WINDOW_SYSTEM
4316 /* Changed font-related attributes of the `default' face are
4317 reflected in changed `font' frame parameters. */
4319 && (font_related_attr_p
|| font_attr_p
)
4320 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4321 set_font_frame_param (frame
, lface
);
4323 #endif /* HAVE_WINDOW_SYSTEM */
4325 if (EQ (attr
, QCforeground
))
4326 param
= Qforeground_color
;
4327 else if (EQ (attr
, QCbackground
))
4328 param
= Qbackground_color
;
4330 #ifdef HAVE_WINDOW_SYSTEM
4332 else if (EQ (face
, Qscroll_bar
))
4334 /* Changing the colors of `scroll-bar' sets frame parameters
4335 `scroll-bar-foreground' and `scroll-bar-background'. */
4336 if (EQ (attr
, QCforeground
))
4337 param
= Qscroll_bar_foreground
;
4338 else if (EQ (attr
, QCbackground
))
4339 param
= Qscroll_bar_background
;
4341 #endif /* not WINDOWSNT */
4342 else if (EQ (face
, Qborder
))
4344 /* Changing background color of `border' sets frame parameter
4346 if (EQ (attr
, QCbackground
))
4347 param
= Qborder_color
;
4349 else if (EQ (face
, Qcursor
))
4351 /* Changing background color of `cursor' sets frame parameter
4353 if (EQ (attr
, QCbackground
))
4354 param
= Qcursor_color
;
4356 else if (EQ (face
, Qmouse
))
4358 /* Changing background color of `mouse' sets frame parameter
4360 if (EQ (attr
, QCbackground
))
4361 param
= Qmouse_color
;
4363 #endif /* HAVE_WINDOW_SYSTEM */
4364 else if (EQ (face
, Qmenu
))
4366 /* Indicate that we have to update the menu bar when
4367 realizing faces on FRAME. FRAME t change the
4368 default for new frames. We do this by setting
4369 setting the flag in new face caches */
4372 struct frame
*f
= XFRAME (frame
);
4373 if (FRAME_FACE_CACHE (f
) == NULL
)
4374 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4375 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4378 menu_face_changed_default
= 1;
4384 /* Update `default-frame-alist', which is used for new frames. */
4386 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4389 /* Update the current frame's parameters. */
4392 cons
= XCAR (Vparam_value_alist
);
4393 XSETCAR (cons
, param
);
4394 XSETCDR (cons
, value
);
4395 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4404 #ifdef HAVE_WINDOW_SYSTEM
4406 /* Set the `font' frame parameter of FRAME determined from `default'
4407 face attributes LFACE. If a face or fontset name is explicitely
4408 specfied in LFACE, use it as is. Otherwise, determine a font name
4409 from the other font-related atrributes of LFACE. In that case, if
4410 there's no matching font, signals an error. */
4413 set_font_frame_param (frame
, lface
)
4414 Lisp_Object frame
, lface
;
4416 struct frame
*f
= XFRAME (frame
);
4418 if (FRAME_WINDOW_P (f
))
4420 Lisp_Object font_name
;
4423 if (STRINGP (LFACE_FONT (lface
)))
4424 font_name
= LFACE_FONT (lface
);
4427 /* Choose a font name that reflects LFACE's attributes and has
4428 the registry and encoding pattern specified in the default
4429 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4430 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4432 error ("No font matches the specified attribute");
4433 font_name
= build_string (font
);
4437 f
->default_face_done_p
= 0;
4438 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4443 /* Update the corresponding face when frame parameter PARAM on frame F
4444 has been assigned the value NEW_VALUE. */
4447 update_face_from_frame_parameter (f
, param
, new_value
)
4449 Lisp_Object param
, new_value
;
4453 /* If there are no faces yet, give up. This is the case when called
4454 from Fx_create_frame, and we do the necessary things later in
4455 face-set-after-frame-defaults. */
4456 if (NILP (f
->face_alist
))
4459 /* Changing a named face means that all realized faces depending on
4460 that face are invalid. Since we cannot tell which realized faces
4461 depend on the face, make sure they are all removed. This is done
4462 by incrementing face_change_count. The next call to
4463 init_iterator will then free realized faces. */
4464 ++face_change_count
;
4465 ++windows_or_buffers_changed
;
4467 if (EQ (param
, Qforeground_color
))
4469 lface
= lface_from_face_name (f
, Qdefault
, 1);
4470 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4471 ? new_value
: Qunspecified
);
4472 realize_basic_faces (f
);
4474 else if (EQ (param
, Qbackground_color
))
4478 /* Changing the background color might change the background
4479 mode, so that we have to load new defface specs. Call
4480 frame-update-face-colors to do that. */
4481 XSETFRAME (frame
, f
);
4482 call1 (Qframe_update_face_colors
, frame
);
4484 lface
= lface_from_face_name (f
, Qdefault
, 1);
4485 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4486 ? new_value
: Qunspecified
);
4487 realize_basic_faces (f
);
4489 if (EQ (param
, Qborder_color
))
4491 lface
= lface_from_face_name (f
, Qborder
, 1);
4492 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4493 ? new_value
: Qunspecified
);
4495 else if (EQ (param
, Qcursor_color
))
4497 lface
= lface_from_face_name (f
, Qcursor
, 1);
4498 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4499 ? new_value
: Qunspecified
);
4501 else if (EQ (param
, Qmouse_color
))
4503 lface
= lface_from_face_name (f
, Qmouse
, 1);
4504 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4505 ? new_value
: Qunspecified
);
4510 /* Get the value of X resource RESOURCE, class CLASS for the display
4511 of frame FRAME. This is here because ordinary `x-get-resource'
4512 doesn't take a frame argument. */
4514 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4515 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4516 (resource
, class, frame
)
4517 Lisp_Object resource
, class, frame
;
4519 Lisp_Object value
= Qnil
;
4520 CHECK_STRING (resource
);
4521 CHECK_STRING (class);
4522 CHECK_LIVE_FRAME (frame
);
4524 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4525 resource
, class, Qnil
, Qnil
);
4531 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4532 If VALUE is "on" or "true", return t. If VALUE is "off" or
4533 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4534 error; if SIGNAL_P is zero, return 0. */
4537 face_boolean_x_resource_value (value
, signal_p
)
4541 Lisp_Object result
= make_number (0);
4543 xassert (STRINGP (value
));
4545 if (xstricmp (SDATA (value
), "on") == 0
4546 || xstricmp (SDATA (value
), "true") == 0)
4548 else if (xstricmp (SDATA (value
), "off") == 0
4549 || xstricmp (SDATA (value
), "false") == 0)
4551 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4552 result
= Qunspecified
;
4554 signal_error ("Invalid face attribute value from X resource", value
);
4560 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4561 Finternal_set_lisp_face_attribute_from_resource
,
4562 Sinternal_set_lisp_face_attribute_from_resource
,
4563 3, 4, 0, doc
: /* */)
4564 (face
, attr
, value
, frame
)
4565 Lisp_Object face
, attr
, value
, frame
;
4567 CHECK_SYMBOL (face
);
4568 CHECK_SYMBOL (attr
);
4569 CHECK_STRING (value
);
4571 if (xstricmp (SDATA (value
), "unspecified") == 0)
4572 value
= Qunspecified
;
4573 else if (EQ (attr
, QCheight
))
4575 value
= Fstring_to_number (value
, make_number (10));
4576 if (XINT (value
) <= 0)
4577 signal_error ("Invalid face height from X resource", value
);
4579 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4580 value
= face_boolean_x_resource_value (value
, 1);
4581 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4582 value
= intern (SDATA (value
));
4583 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4584 value
= face_boolean_x_resource_value (value
, 1);
4585 else if (EQ (attr
, QCunderline
)
4586 || EQ (attr
, QCoverline
)
4587 || EQ (attr
, QCstrike_through
))
4589 Lisp_Object boolean_value
;
4591 /* If the result of face_boolean_x_resource_value is t or nil,
4592 VALUE does NOT specify a color. */
4593 boolean_value
= face_boolean_x_resource_value (value
, 0);
4594 if (SYMBOLP (boolean_value
))
4595 value
= boolean_value
;
4597 else if (EQ (attr
, QCbox
))
4598 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4600 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4603 #endif /* HAVE_WINDOW_SYSTEM */
4606 /***********************************************************************
4608 ***********************************************************************/
4610 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4612 /* Make menus on frame F appear as specified by the `menu' face. */
4615 x_update_menu_appearance (f
)
4618 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4622 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4626 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4627 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4628 const char *myname
= SDATA (Vx_resource_name
);
4631 const char *popup_path
= "popup_menu";
4633 const char *popup_path
= "menu.popup";
4636 if (STRINGP (LFACE_FOREGROUND (lface
)))
4638 sprintf (line
, "%s.%s*foreground: %s",
4640 SDATA (LFACE_FOREGROUND (lface
)));
4641 XrmPutLineResource (&rdb
, line
);
4642 sprintf (line
, "%s.pane.menubar*foreground: %s",
4643 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4644 XrmPutLineResource (&rdb
, line
);
4648 if (STRINGP (LFACE_BACKGROUND (lface
)))
4650 sprintf (line
, "%s.%s*background: %s",
4652 SDATA (LFACE_BACKGROUND (lface
)));
4653 XrmPutLineResource (&rdb
, line
);
4654 sprintf (line
, "%s.pane.menubar*background: %s",
4655 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4656 XrmPutLineResource (&rdb
, line
);
4661 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4662 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4663 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4664 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4665 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4666 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4669 const char *suffix
= "List";
4671 const char *suffix
= "";
4673 sprintf (line
, "%s.pane.menubar*font%s: %s",
4674 myname
, suffix
, face
->font_name
);
4675 XrmPutLineResource (&rdb
, line
);
4676 sprintf (line
, "%s.%s*font%s: %s",
4677 myname
, popup_path
, suffix
, face
->font_name
);
4678 XrmPutLineResource (&rdb
, line
);
4682 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4683 free_frame_menubar (f
);
4687 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4690 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4691 Sface_attribute_relative_p
,
4693 doc
: /* Return non-nil if face ATTRIBUTE VALUE is relative. */)
4695 Lisp_Object attribute
, value
;
4697 if (EQ (value
, Qunspecified
))
4699 else if (EQ (attribute
, QCheight
))
4700 return INTEGERP (value
) ? Qnil
: Qt
;
4705 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4707 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4708 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4709 the result will be absolute, otherwise it will be relative. */)
4710 (attribute
, value1
, value2
)
4711 Lisp_Object attribute
, value1
, value2
;
4713 if (EQ (value1
, Qunspecified
))
4715 else if (EQ (attribute
, QCheight
))
4716 return merge_face_heights (value1
, value2
, value1
, Qnil
);
4722 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4723 Sinternal_get_lisp_face_attribute
,
4725 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4726 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4727 face attribute name, signal an error.
4728 If the optional argument FRAME is given, report on face SYMBOL in that
4729 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
4730 frames). If FRAME is omitted or nil, use the selected frame. */)
4731 (symbol
, keyword
, frame
)
4732 Lisp_Object symbol
, keyword
, frame
;
4734 Lisp_Object lface
, value
= Qnil
;
4736 CHECK_SYMBOL (symbol
);
4737 CHECK_SYMBOL (keyword
);
4740 lface
= lface_from_face_name (NULL
, symbol
, 1);
4744 frame
= selected_frame
;
4745 CHECK_LIVE_FRAME (frame
);
4746 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4749 if (EQ (keyword
, QCfamily
))
4750 value
= LFACE_FAMILY (lface
);
4751 else if (EQ (keyword
, QCheight
))
4752 value
= LFACE_HEIGHT (lface
);
4753 else if (EQ (keyword
, QCweight
))
4754 value
= LFACE_WEIGHT (lface
);
4755 else if (EQ (keyword
, QCslant
))
4756 value
= LFACE_SLANT (lface
);
4757 else if (EQ (keyword
, QCunderline
))
4758 value
= LFACE_UNDERLINE (lface
);
4759 else if (EQ (keyword
, QCoverline
))
4760 value
= LFACE_OVERLINE (lface
);
4761 else if (EQ (keyword
, QCstrike_through
))
4762 value
= LFACE_STRIKE_THROUGH (lface
);
4763 else if (EQ (keyword
, QCbox
))
4764 value
= LFACE_BOX (lface
);
4765 else if (EQ (keyword
, QCinverse_video
)
4766 || EQ (keyword
, QCreverse_video
))
4767 value
= LFACE_INVERSE (lface
);
4768 else if (EQ (keyword
, QCforeground
))
4769 value
= LFACE_FOREGROUND (lface
);
4770 else if (EQ (keyword
, QCbackground
))
4771 value
= LFACE_BACKGROUND (lface
);
4772 else if (EQ (keyword
, QCstipple
))
4773 value
= LFACE_STIPPLE (lface
);
4774 else if (EQ (keyword
, QCwidth
))
4775 value
= LFACE_SWIDTH (lface
);
4776 else if (EQ (keyword
, QCinherit
))
4777 value
= LFACE_INHERIT (lface
);
4778 else if (EQ (keyword
, QCfont
))
4779 value
= LFACE_FONT (lface
);
4781 signal_error ("Invalid face attribute name", keyword
);
4787 DEFUN ("internal-lisp-face-attribute-values",
4788 Finternal_lisp_face_attribute_values
,
4789 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4790 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4791 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4795 Lisp_Object result
= Qnil
;
4797 CHECK_SYMBOL (attr
);
4799 if (EQ (attr
, QCweight
)
4800 || EQ (attr
, QCslant
)
4801 || EQ (attr
, QCwidth
))
4803 /* Extract permissible symbols from tables. */
4804 struct table_entry
*table
;
4807 if (EQ (attr
, QCweight
))
4808 table
= weight_table
, dim
= DIM (weight_table
);
4809 else if (EQ (attr
, QCslant
))
4810 table
= slant_table
, dim
= DIM (slant_table
);
4812 table
= swidth_table
, dim
= DIM (swidth_table
);
4814 for (i
= 0; i
< dim
; ++i
)
4816 Lisp_Object symbol
= *table
[i
].symbol
;
4817 Lisp_Object tail
= result
;
4820 && !EQ (XCAR (tail
), symbol
))
4824 result
= Fcons (symbol
, result
);
4827 else if (EQ (attr
, QCunderline
))
4828 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4829 else if (EQ (attr
, QCoverline
))
4830 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4831 else if (EQ (attr
, QCstrike_through
))
4832 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4833 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4834 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4840 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4841 Sinternal_merge_in_global_face
, 2, 2, 0,
4842 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4843 Default face attributes override any local face attributes. */)
4845 Lisp_Object face
, frame
;
4848 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4850 CHECK_LIVE_FRAME (frame
);
4851 global_lface
= lface_from_face_name (NULL
, face
, 1);
4852 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4853 if (NILP (local_lface
))
4854 local_lface
= Finternal_make_lisp_face (face
, frame
);
4856 /* Make every specified global attribute override the local one.
4857 BEWARE!! This is only used from `face-set-after-frame-default' where
4858 the local frame is defined from default specs in `face-defface-spec'
4859 and those should be overridden by global settings. Hence the strange
4860 "global before local" priority. */
4861 lvec
= XVECTOR (local_lface
)->contents
;
4862 gvec
= XVECTOR (global_lface
)->contents
;
4863 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4864 if (! UNSPECIFIEDP (gvec
[i
]))
4871 /* The following function is implemented for compatibility with 20.2.
4872 The function is used in x-resolve-fonts when it is asked to
4873 return fonts with the same size as the font of a face. This is
4874 done in fontset.el. */
4876 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4877 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4878 If the optional argument FRAME is given, report on face FACE in that frame.
4879 If FRAME is t, report on the defaults for face FACE (for new frames).
4880 The font default for a face is either nil, or a list
4881 of the form (bold), (italic) or (bold italic).
4882 If FRAME is omitted or nil, use the selected frame. */)
4884 Lisp_Object face
, frame
;
4888 Lisp_Object result
= Qnil
;
4889 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4891 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4892 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4893 result
= Fcons (Qbold
, result
);
4895 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4896 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4897 result
= Fcons (Qitalic
, result
);
4903 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4904 int face_id
= lookup_named_face (f
, face
, 0);
4905 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4906 return face
? build_string (face
->font_name
) : Qnil
;
4911 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4912 all attributes are `equal'. Tries to be fast because this function
4913 is called quite often. */
4916 face_attr_equal_p (v1
, v2
)
4919 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4920 and the other is specified. */
4921 if (XTYPE (v1
) != XTYPE (v2
))
4930 if (SBYTES (v1
) != SBYTES (v2
))
4933 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4940 return !NILP (Fequal (v1
, v2
));
4945 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4946 all attributes are `equal'. Tries to be fast because this function
4947 is called quite often. */
4950 lface_equal_p (v1
, v2
)
4951 Lisp_Object
*v1
, *v2
;
4955 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4956 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4962 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4963 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4964 doc
: /* True if FACE1 and FACE2 are equal.
4965 If the optional argument FRAME is given, report on face FACE in that frame.
4966 If FRAME is t, report on the defaults for face FACE (for new frames).
4967 If FRAME is omitted or nil, use the selected frame. */)
4968 (face1
, face2
, frame
)
4969 Lisp_Object face1
, face2
, frame
;
4973 Lisp_Object lface1
, lface2
;
4978 /* Don't use check_x_frame here because this function is called
4979 before X frames exist. At that time, if FRAME is nil,
4980 selected_frame will be used which is the frame dumped with
4981 Emacs. That frame is not an X frame. */
4982 f
= frame_or_selected_frame (frame
, 2);
4984 lface1
= lface_from_face_name (NULL
, face1
, 1);
4985 lface2
= lface_from_face_name (NULL
, face2
, 1);
4986 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4987 XVECTOR (lface2
)->contents
);
4988 return equal_p
? Qt
: Qnil
;
4992 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4993 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4994 doc
: /* True if FACE has no attribute specified.
4995 If the optional argument FRAME is given, report on face FACE in that frame.
4996 If FRAME is t, report on the defaults for face FACE (for new frames).
4997 If FRAME is omitted or nil, use the selected frame. */)
4999 Lisp_Object face
, frame
;
5006 frame
= selected_frame
;
5007 CHECK_LIVE_FRAME (frame
);
5011 lface
= lface_from_face_name (NULL
, face
, 1);
5013 lface
= lface_from_face_name (f
, face
, 1);
5015 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5016 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5019 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5023 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5025 doc
: /* Return an alist of frame-local faces defined on FRAME.
5026 For internal use only. */)
5030 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5031 return f
->face_alist
;
5035 /* Return a hash code for Lisp string STRING with case ignored. Used
5036 below in computing a hash value for a Lisp face. */
5038 static INLINE
unsigned
5039 hash_string_case_insensitive (string
)
5042 const unsigned char *s
;
5044 xassert (STRINGP (string
));
5045 for (s
= SDATA (string
); *s
; ++s
)
5046 hash
= (hash
<< 1) ^ tolower (*s
);
5051 /* Return a hash code for face attribute vector V. */
5053 static INLINE
unsigned
5057 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5058 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5059 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5060 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5061 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5062 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5063 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5067 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5068 considering charsets/registries). They do if they specify the same
5069 family, point size, weight, width, slant, and fontset. Both LFACE1
5070 and LFACE2 must be fully-specified. */
5073 lface_same_font_attributes_p (lface1
, lface2
)
5074 Lisp_Object
*lface1
, *lface2
;
5076 xassert (lface_fully_specified_p (lface1
)
5077 && lface_fully_specified_p (lface2
));
5078 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5079 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5080 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5081 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5082 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5083 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5084 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5085 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5086 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5087 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5088 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5089 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5094 /***********************************************************************
5096 ***********************************************************************/
5098 /* Allocate and return a new realized face for Lisp face attribute
5101 static struct face
*
5102 make_realized_face (attr
)
5105 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5106 bzero (face
, sizeof *face
);
5107 face
->ascii_face
= face
;
5108 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5113 /* Free realized face FACE, including its X resources. FACE may
5117 free_realized_face (f
, face
)
5123 #ifdef HAVE_WINDOW_SYSTEM
5124 if (FRAME_WINDOW_P (f
))
5126 /* Free fontset of FACE if it is ASCII face. */
5127 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5128 free_face_fontset (f
, face
);
5131 x_free_gc (f
, face
->gc
);
5135 free_face_colors (f
, face
);
5136 x_destroy_bitmap (f
, face
->stipple
);
5138 #endif /* HAVE_WINDOW_SYSTEM */
5145 /* Prepare face FACE for subsequent display on frame F. This
5146 allocated GCs if they haven't been allocated yet or have been freed
5147 by clearing the face cache. */
5150 prepare_face_for_display (f
, face
)
5154 #ifdef HAVE_WINDOW_SYSTEM
5155 xassert (FRAME_WINDOW_P (f
));
5160 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5162 xgcv
.foreground
= face
->foreground
;
5163 xgcv
.background
= face
->background
;
5164 #ifdef HAVE_X_WINDOWS
5165 xgcv
.graphics_exposures
= False
;
5167 /* The font of FACE may be null if we couldn't load it. */
5170 #ifdef HAVE_X_WINDOWS
5171 xgcv
.font
= face
->font
->fid
;
5174 xgcv
.font
= face
->font
;
5177 xgcv
.font
= face
->font
;
5183 #ifdef HAVE_X_WINDOWS
5186 xgcv
.fill_style
= FillOpaqueStippled
;
5187 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5188 mask
|= GCFillStyle
| GCStipple
;
5191 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5194 #endif /* HAVE_WINDOW_SYSTEM */
5198 /* Returns the `distance' between the colors X and Y. */
5201 color_distance (x
, y
)
5204 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5205 Quoting from that paper:
5207 This formula has results that are very close to L*u*v* (with the
5208 modified lightness curve) and, more importantly, it is a more even
5209 algorithm: it does not have a range of colours where it suddenly
5210 gives far from optimal results.
5212 See <http://www.compuphase.com/cmetric.htm> for more info. */
5214 long r
= (x
->red
- y
->red
) >> 8;
5215 long g
= (x
->green
- y
->green
) >> 8;
5216 long b
= (x
->blue
- y
->blue
) >> 8;
5217 long r_mean
= (x
->red
+ y
->red
) >> 9;
5220 (((512 + r_mean
) * r
* r
) >> 8)
5222 + (((767 - r_mean
) * b
* b
) >> 8);
5226 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5227 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5228 COLOR1 and COLOR2 may be either strings containing the color name,
5229 or lists of the form (RED GREEN BLUE).
5230 If FRAME is unspecified or nil, the current frame is used. */)
5231 (color1
, color2
, frame
)
5232 Lisp_Object color1
, color2
, frame
;
5235 XColor cdef1
, cdef2
;
5238 frame
= selected_frame
;
5239 CHECK_LIVE_FRAME (frame
);
5242 if ((CONSP (color1
) && !parse_rgb_list (color1
, &cdef1
))
5243 || !STRINGP (color1
)
5244 || !defined_color (f
, SDATA (color1
), &cdef1
, 0))
5245 signal_error ("Invalid color", color1
);
5246 if ((CONSP (color2
) && !parse_rgb_list (color2
, &cdef2
))
5247 || !STRINGP (color2
)
5248 || !defined_color (f
, SDATA (color2
), &cdef2
, 0))
5249 signal_error ("Invalid color", color2
);
5251 return make_number (color_distance (&cdef1
, &cdef2
));
5255 /***********************************************************************
5257 ***********************************************************************/
5259 /* Return a new face cache for frame F. */
5261 static struct face_cache
*
5265 struct face_cache
*c
;
5268 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5269 bzero (c
, sizeof *c
);
5270 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5271 c
->buckets
= (struct face
**) xmalloc (size
);
5272 bzero (c
->buckets
, size
);
5274 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5276 c
->menu_face_changed_p
= menu_face_changed_default
;
5281 /* Clear out all graphics contexts for all realized faces, except for
5282 the basic faces. This should be done from time to time just to avoid
5283 keeping too many graphics contexts that are no longer needed. */
5287 struct face_cache
*c
;
5289 if (c
&& FRAME_WINDOW_P (c
->f
))
5291 #ifdef HAVE_WINDOW_SYSTEM
5293 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5295 struct face
*face
= c
->faces_by_id
[i
];
5296 if (face
&& face
->gc
)
5298 x_free_gc (c
->f
, face
->gc
);
5302 #endif /* HAVE_WINDOW_SYSTEM */
5307 /* Free all realized faces in face cache C, including basic faces.
5308 C may be null. If faces are freed, make sure the frame's current
5309 matrix is marked invalid, so that a display caused by an expose
5310 event doesn't try to use faces we destroyed. */
5313 free_realized_faces (c
)
5314 struct face_cache
*c
;
5319 struct frame
*f
= c
->f
;
5321 /* We must block input here because we can't process X events
5322 safely while only some faces are freed, or when the frame's
5323 current matrix still references freed faces. */
5326 for (i
= 0; i
< c
->used
; ++i
)
5328 free_realized_face (f
, c
->faces_by_id
[i
]);
5329 c
->faces_by_id
[i
] = NULL
;
5333 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5334 bzero (c
->buckets
, size
);
5336 /* Must do a thorough redisplay the next time. Mark current
5337 matrices as invalid because they will reference faces freed
5338 above. This function is also called when a frame is
5339 destroyed. In this case, the root window of F is nil. */
5340 if (WINDOWP (f
->root_window
))
5342 clear_current_matrices (f
);
5343 ++windows_or_buffers_changed
;
5351 /* Free all faces realized for multibyte characters on frame F that
5355 free_realized_multibyte_face (f
, fontset
)
5359 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5363 /* We must block input here because we can't process X events safely
5364 while only some faces are freed, or when the frame's current
5365 matrix still references freed faces. */
5368 for (i
= 0; i
< cache
->used
; i
++)
5370 face
= cache
->faces_by_id
[i
];
5372 && face
!= face
->ascii_face
5373 && face
->fontset
== fontset
)
5375 uncache_face (cache
, face
);
5376 free_realized_face (f
, face
);
5380 /* Must do a thorough redisplay the next time. Mark current
5381 matrices as invalid because they will reference faces freed
5382 above. This function is also called when a frame is destroyed.
5383 In this case, the root window of F is nil. */
5384 if (WINDOWP (f
->root_window
))
5386 clear_current_matrices (f
);
5387 ++windows_or_buffers_changed
;
5394 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5395 This is done after attributes of a named face have been changed,
5396 because we can't tell which realized faces depend on that face. */
5399 free_all_realized_faces (frame
)
5405 FOR_EACH_FRAME (rest
, frame
)
5406 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5409 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5413 /* Free face cache C and faces in it, including their X resources. */
5417 struct face_cache
*c
;
5421 free_realized_faces (c
);
5423 xfree (c
->faces_by_id
);
5429 /* Cache realized face FACE in face cache C. HASH is the hash value
5430 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5431 collision list of the face hash table of C. This is done because
5432 otherwise lookup_face would find FACE for every character, even if
5433 faces with the same attributes but for specific characters exist. */
5436 cache_face (c
, face
, hash
)
5437 struct face_cache
*c
;
5441 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5445 if (face
->fontset
>= 0)
5447 struct face
*last
= c
->buckets
[i
];
5458 c
->buckets
[i
] = face
;
5459 face
->prev
= face
->next
= NULL
;
5465 face
->next
= c
->buckets
[i
];
5467 face
->next
->prev
= face
;
5468 c
->buckets
[i
] = face
;
5471 /* Find a free slot in C->faces_by_id and use the index of the free
5472 slot as FACE->id. */
5473 for (i
= 0; i
< c
->used
; ++i
)
5474 if (c
->faces_by_id
[i
] == NULL
)
5478 /* Maybe enlarge C->faces_by_id. */
5481 if (c
->used
== c
->size
)
5484 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5485 if (new_size
== c
->size
)
5486 abort (); /* Alternatives? ++kfs */
5487 sz
= new_size
* sizeof *c
->faces_by_id
;
5488 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5495 /* Check that FACE got a unique id. */
5500 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5501 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5507 #endif /* GLYPH_DEBUG */
5509 c
->faces_by_id
[i
] = face
;
5513 /* Remove face FACE from cache C. */
5516 uncache_face (c
, face
)
5517 struct face_cache
*c
;
5520 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5523 face
->prev
->next
= face
->next
;
5525 c
->buckets
[i
] = face
->next
;
5528 face
->next
->prev
= face
->prev
;
5530 c
->faces_by_id
[face
->id
] = NULL
;
5531 if (face
->id
== c
->used
)
5536 /* Look up a realized face with face attributes ATTR in the face cache
5537 of frame F. The face will be used to display character C. Value
5538 is the ID of the face found. If no suitable face is found, realize
5539 a new one. In that case, if C is a multibyte character, BASE_FACE
5540 is a face that has the same attributes. */
5543 lookup_face (f
, attr
, c
, base_face
)
5547 struct face
*base_face
;
5549 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5554 xassert (cache
!= NULL
);
5555 check_lface_attrs (attr
);
5557 /* Look up ATTR in the face cache. */
5558 hash
= lface_hash (attr
);
5559 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5561 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5562 if (face
->hash
== hash
5563 && (!FRAME_WINDOW_P (f
)
5564 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5565 && lface_equal_p (face
->lface
, attr
))
5568 /* If not found, realize a new face. */
5570 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5573 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5575 /* When this function is called from face_for_char (in this case, C is
5576 a multibyte character), a fontset of a face returned by
5577 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5578 C) is not sutisfied. The fontset is set for this face by
5579 face_for_char later. */
5581 if (FRAME_WINDOW_P (f
))
5582 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5584 #endif /* GLYPH_DEBUG */
5590 /* Return the face id of the realized face for named face SYMBOL on
5591 frame F suitable for displaying character C. Value is -1 if the
5592 face couldn't be determined, which might happen if the default face
5593 isn't realized and cannot be realized. */
5596 lookup_named_face (f
, symbol
, c
)
5601 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5602 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5603 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5605 if (default_face
== NULL
)
5607 if (!realize_basic_faces (f
))
5609 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5612 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5613 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5614 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5616 return lookup_face (f
, attrs
, c
, NULL
);
5620 /* Return the ID of the realized ASCII face of Lisp face with ID
5621 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5624 ascii_face_of_lisp_face (f
, lface_id
)
5630 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5632 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5633 face_id
= lookup_named_face (f
, face_name
, 0);
5642 /* Return a face for charset ASCII that is like the face with id
5643 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5644 STEPS < 0 means larger. Value is the id of the face. */
5647 smaller_face (f
, face_id
, steps
)
5651 #ifdef HAVE_WINDOW_SYSTEM
5653 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5654 int pt
, last_pt
, last_height
;
5657 struct face
*new_face
;
5659 /* If not called for an X frame, just return the original face. */
5660 if (FRAME_TERMCAP_P (f
))
5663 /* Try in increments of 1/2 pt. */
5664 delta
= steps
< 0 ? 5 : -5;
5665 steps
= abs (steps
);
5667 face
= FACE_FROM_ID (f
, face_id
);
5668 bcopy (face
->lface
, attrs
, sizeof attrs
);
5669 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5670 new_face_id
= face_id
;
5671 last_height
= FONT_HEIGHT (face
->font
);
5675 /* Give up if we cannot find a font within 10pt. */
5676 && abs (last_pt
- pt
) < 100)
5678 /* Look up a face for a slightly smaller/larger font. */
5680 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5681 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5682 new_face
= FACE_FROM_ID (f
, new_face_id
);
5684 /* If height changes, count that as one step. */
5685 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5686 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5689 last_height
= FONT_HEIGHT (new_face
->font
);
5696 #else /* not HAVE_WINDOW_SYSTEM */
5700 #endif /* not HAVE_WINDOW_SYSTEM */
5704 /* Return a face for charset ASCII that is like the face with id
5705 FACE_ID on frame F, but has height HEIGHT. */
5708 face_with_height (f
, face_id
, height
)
5713 #ifdef HAVE_WINDOW_SYSTEM
5715 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5717 if (FRAME_TERMCAP_P (f
)
5721 face
= FACE_FROM_ID (f
, face_id
);
5722 bcopy (face
->lface
, attrs
, sizeof attrs
);
5723 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5724 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5725 #endif /* HAVE_WINDOW_SYSTEM */
5731 /* Return the face id of the realized face for named face SYMBOL on
5732 frame F suitable for displaying character C, and use attributes of
5733 the face FACE_ID for attributes that aren't completely specified by
5734 SYMBOL. This is like lookup_named_face, except that the default
5735 attributes come from FACE_ID, not from the default face. FACE_ID
5736 is assumed to be already realized. */
5739 lookup_derived_face (f
, symbol
, c
, face_id
)
5745 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5746 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5747 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5752 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5753 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5754 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5755 return lookup_face (f
, attrs
, c
, default_face
);
5758 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5759 Sface_attributes_as_vector
, 1, 1, 0,
5760 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5765 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5767 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5774 /***********************************************************************
5775 Face capability testing
5776 ***********************************************************************/
5779 /* If the distance (as returned by color_distance) between two colors is
5780 less than this, then they are considered the same, for determining
5781 whether a color is supported or not. The range of values is 0-65535. */
5783 #define TTY_SAME_COLOR_THRESHOLD 10000
5785 #ifdef HAVE_WINDOW_SYSTEM
5787 /* Return non-zero if all the face attributes in ATTRS are supported
5788 on the window-system frame F.
5790 The definition of `supported' is somewhat heuristic, but basically means
5791 that a face containing all the attributes in ATTRS, when merged with the
5792 default face for display, can be represented in a way that's
5794 \(1) different in appearance than the default face, and
5795 \(2) `close in spirit' to what the attributes specify, if not exact. */
5798 x_supports_face_attributes_p (f
, attrs
, def_face
)
5801 struct face
*def_face
;
5803 Lisp_Object
*def_attrs
= def_face
->lface
;
5805 /* Check that other specified attributes are different that the default
5807 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5808 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5809 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5810 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5811 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5812 def_attrs
[LFACE_INVERSE_INDEX
]))
5813 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5814 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5815 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5816 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5817 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5818 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5819 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5820 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5821 def_attrs
[LFACE_STIPPLE_INDEX
]))
5822 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5823 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5824 def_attrs
[LFACE_OVERLINE_INDEX
]))
5825 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5826 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5827 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5828 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5829 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5830 def_attrs
[LFACE_BOX_INDEX
])))
5833 /* Check font-related attributes, as those are the most commonly
5834 "unsupported" on a window-system (because of missing fonts). */
5835 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5836 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5837 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5838 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5839 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5840 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
5843 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5845 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5847 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5849 face
= FACE_FROM_ID (f
, lookup_face (f
, merged_attrs
, 0, 0));
5852 error ("cannot make face");
5854 /* If the font is the same, then not supported. */
5855 if (face
->font
== def_face
->font
)
5859 /* Everything checks out, this face is supported. */
5863 #endif /* HAVE_WINDOW_SYSTEM */
5865 /* Return non-zero if all the face attributes in ATTRS are supported
5868 The definition of `supported' is somewhat heuristic, but basically means
5869 that a face containing all the attributes in ATTRS, when merged
5870 with the default face for display, can be represented in a way that's
5872 \(1) different in appearance than the default face, and
5873 \(2) `close in spirit' to what the attributes specify, if not exact.
5875 Point (2) implies that a `:weight black' attribute will be satisfied
5876 by any terminal that can display bold, and a `:foreground "yellow"' as
5877 long as the terminal can display a yellowish color, but `:slant italic'
5878 will _not_ be satisfied by the tty display code's automatic
5879 substitution of a `dim' face for italic. */
5882 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5885 struct face
*def_face
;
5888 Lisp_Object val
, fg
, bg
;
5889 XColor fg_tty_color
, fg_std_color
;
5890 XColor bg_tty_color
, bg_std_color
;
5891 unsigned test_caps
= 0;
5892 Lisp_Object
*def_attrs
= def_face
->lface
;
5895 /* First check some easy-to-check stuff; ttys support none of the
5896 following attributes, so we can just return false if any are requested
5897 (even if `nominal' values are specified, we should still return false,
5898 as that will be the same value that the default face uses). We
5899 consider :slant unsupportable on ttys, even though the face code
5900 actually `fakes' them using a dim attribute if possible. This is
5901 because the faked result is too different from what the face
5903 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5904 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5905 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5906 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5907 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5908 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5909 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5910 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5914 /* Test for terminal `capabilities' (non-color character attributes). */
5916 /* font weight (bold/dim) */
5917 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5920 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
5922 if (weight
> XLFD_WEIGHT_MEDIUM
)
5924 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
5925 return 0; /* same as default */
5926 test_caps
= TTY_CAP_BOLD
;
5928 else if (weight
< XLFD_WEIGHT_MEDIUM
)
5930 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
5931 return 0; /* same as default */
5932 test_caps
= TTY_CAP_DIM
;
5934 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
5935 return 0; /* same as default */
5939 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5940 if (!UNSPECIFIEDP (val
))
5943 return 0; /* ttys can't use colored underlines */
5944 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5945 return 0; /* same as default */
5947 test_caps
|= TTY_CAP_UNDERLINE
;
5951 val
= attrs
[LFACE_INVERSE_INDEX
];
5952 if (!UNSPECIFIEDP (val
))
5954 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5955 return 0; /* same as default */
5957 test_caps
|= TTY_CAP_INVERSE
;
5961 /* Color testing. */
5963 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5964 we use them when calling `tty_capable_p' below, even if the face
5965 specifies no colors. */
5966 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5967 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5969 /* Check if foreground color is close enough. */
5970 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5973 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5975 if (face_attr_equal_p (fg
, def_fg
))
5976 return 0; /* same as default */
5977 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5978 return 0; /* not a valid color */
5979 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5980 > TTY_SAME_COLOR_THRESHOLD
)
5981 return 0; /* displayed color is too different */
5983 /* Make sure the color is really different than the default. */
5985 XColor def_fg_color
;
5986 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5987 && (color_distance (&fg_tty_color
, &def_fg_color
)
5988 <= TTY_SAME_COLOR_THRESHOLD
))
5993 /* Check if background color is close enough. */
5994 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5997 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5999 if (face_attr_equal_p (bg
, def_bg
))
6000 return 0; /* same as default */
6001 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6002 return 0; /* not a valid color */
6003 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6004 > TTY_SAME_COLOR_THRESHOLD
)
6005 return 0; /* displayed color is too different */
6007 /* Make sure the color is really different than the default. */
6009 XColor def_bg_color
;
6010 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6011 && (color_distance (&bg_tty_color
, &def_bg_color
)
6012 <= TTY_SAME_COLOR_THRESHOLD
))
6017 /* If both foreground and background are requested, see if the
6018 distance between them is OK. We just check to see if the distance
6019 between the tty's foreground and background is close enough to the
6020 distance between the standard foreground and background. */
6021 if (STRINGP (fg
) && STRINGP (bg
))
6024 = (color_distance (&fg_std_color
, &bg_std_color
)
6025 - color_distance (&fg_tty_color
, &bg_tty_color
));
6026 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6027 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6032 /* See if the capabilities we selected above are supported, with the
6034 if (test_caps
!= 0 &&
6035 ! tty_capable_p (f
, test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6039 /* Hmmm, everything checks out, this terminal must support this face. */
6044 DEFUN ("display-supports-face-attributes-p",
6045 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6047 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6048 The optional argument DISPLAY can be a display name, a frame, or
6049 nil (meaning the selected frame's display)
6051 The definition of `supported' is somewhat heuristic, but basically means
6052 that a face containing all the attributes in ATTRIBUTES, when merged
6053 with the default face for display, can be represented in a way that's
6055 \(1) different in appearance than the default face, and
6056 \(2) `close in spirit' to what the attributes specify, if not exact.
6058 Point (2) implies that a `:weight black' attribute will be satisfied by
6059 any display that can display bold, and a `:foreground \"yellow\"' as long
6060 as it can display a yellowish color, but `:slant italic' will _not_ be
6061 satisfied by the tty display code's automatic substitution of a `dim'
6062 face for italic. */)
6063 (attributes
, display
)
6064 Lisp_Object attributes
, display
;
6069 struct face
*def_face
;
6070 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6072 if (noninteractive
|| !initialized
)
6073 /* We may not be able to access low-level face information in batch
6074 mode, or before being dumped, and this function is not going to
6075 be very useful in those cases anyway, so just give up. */
6079 frame
= selected_frame
;
6080 else if (FRAMEP (display
))
6084 /* Find any frame on DISPLAY. */
6085 Lisp_Object fl_tail
;
6088 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6090 frame
= XCAR (fl_tail
);
6091 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6092 XFRAME (frame
)->param_alist
)),
6098 CHECK_LIVE_FRAME (frame
);
6101 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6102 attrs
[i
] = Qunspecified
;
6103 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6105 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6106 if (def_face
== NULL
)
6108 if (! realize_basic_faces (f
))
6109 error ("Cannot realize default face");
6110 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6113 /* Dispatch to the appropriate handler. */
6114 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6115 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6116 #ifdef HAVE_WINDOW_SYSTEM
6118 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6121 return supports
? Qt
: Qnil
;
6125 /***********************************************************************
6127 ***********************************************************************/
6129 DEFUN ("internal-set-font-selection-order",
6130 Finternal_set_font_selection_order
,
6131 Sinternal_set_font_selection_order
, 1, 1, 0,
6132 doc
: /* Set font selection order for face font selection to ORDER.
6133 ORDER must be a list of length 4 containing the symbols `:width',
6134 `:height', `:weight', and `:slant'. Face attributes appearing
6135 first in ORDER are matched first, e.g. if `:height' appears before
6136 `:weight' in ORDER, font selection first tries to find a font with
6137 a suitable height, and then tries to match the font weight.
6144 int indices
[DIM (font_sort_order
)];
6147 bzero (indices
, sizeof indices
);
6151 CONSP (list
) && i
< DIM (indices
);
6152 list
= XCDR (list
), ++i
)
6154 Lisp_Object attr
= XCAR (list
);
6157 if (EQ (attr
, QCwidth
))
6159 else if (EQ (attr
, QCheight
))
6160 xlfd
= XLFD_POINT_SIZE
;
6161 else if (EQ (attr
, QCweight
))
6163 else if (EQ (attr
, QCslant
))
6168 if (indices
[i
] != 0)
6173 if (!NILP (list
) || i
!= DIM (indices
))
6174 signal_error ("Invalid font sort order", order
);
6175 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6176 if (indices
[i
] == 0)
6177 signal_error ("Invalid font sort order", order
);
6179 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6181 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6182 free_all_realized_faces (Qnil
);
6189 DEFUN ("internal-set-alternative-font-family-alist",
6190 Finternal_set_alternative_font_family_alist
,
6191 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6192 doc
: /* Define alternative font families to try in face font selection.
6193 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6194 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6195 be found. Value is ALIST. */)
6200 Vface_alternative_font_family_alist
= alist
;
6201 free_all_realized_faces (Qnil
);
6206 DEFUN ("internal-set-alternative-font-registry-alist",
6207 Finternal_set_alternative_font_registry_alist
,
6208 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6209 doc
: /* Define alternative font registries to try in face font selection.
6210 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6211 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6212 be found. Value is ALIST. */)
6217 Vface_alternative_font_registry_alist
= alist
;
6218 free_all_realized_faces (Qnil
);
6223 #ifdef HAVE_WINDOW_SYSTEM
6225 /* Value is non-zero if FONT is the name of a scalable font. The
6226 X11R6 XLFD spec says that point size, pixel size, and average width
6227 are zero for scalable fonts. Intlfonts contain at least one
6228 scalable font ("*-muleindian-1") for which this isn't true, so we
6229 just test average width. */
6232 font_scalable_p (font
)
6233 struct font_name
*font
;
6235 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6236 return (*s
== '0' && *(s
+ 1) == '\0')
6238 /* Windows implementation of XLFD is slightly broken for backward
6239 compatibility with previous broken versions, so test for
6240 wildcards as well as 0. */
6247 /* Ignore the difference of font point size less than this value. */
6249 #define FONT_POINT_SIZE_QUANTUM 5
6251 /* Value is non-zero if FONT1 is a better match for font attributes
6252 VALUES than FONT2. VALUES is an array of face attribute values in
6253 font sort order. COMPARE_PT_P zero means don't compare point
6254 sizes. AVGWIDTH, if not zero, is a specified font average width
6258 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6260 struct font_name
*font1
, *font2
;
6261 int compare_pt_p
, avgwidth
;
6265 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6267 int xlfd_idx
= font_sort_order
[i
];
6269 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6273 if (xlfd_idx
== XLFD_POINT_SIZE
)
6275 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6276 / font1
->rescale_ratio
));
6277 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6278 / font2
->rescale_ratio
));
6279 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6284 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6285 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6288 if (delta1
> delta2
)
6290 else if (delta1
< delta2
)
6294 /* The difference may be equal because, e.g., the face
6295 specifies `italic' but we have only `regular' and
6296 `oblique'. Prefer `oblique' in this case. */
6297 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6298 && font1
->numeric
[xlfd_idx
] > values
[i
]
6299 && font2
->numeric
[xlfd_idx
] < values
[i
])
6307 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6308 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6309 if (delta1
> delta2
)
6311 else if (delta1
< delta2
)
6317 /* We prefer a real scalable font; i.e. not what autoscaled. */
6318 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6319 && font1
->numeric
[XLFD_RESY
] > 0);
6320 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6321 && font2
->numeric
[XLFD_RESY
] > 0);
6323 if (auto_scaled_1
!= auto_scaled_2
)
6324 return auto_scaled_2
;
6327 return font1
->registry_priority
< font2
->registry_priority
;
6331 /* Value is non-zero if FONT is an exact match for face attributes in
6332 SPECIFIED. SPECIFIED is an array of face attribute values in font
6333 sort order. AVGWIDTH, if non-zero, is an average width to compare
6337 exact_face_match_p (specified
, font
, avgwidth
)
6339 struct font_name
*font
;
6344 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6345 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6348 return (i
== DIM (font_sort_order
)
6350 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6354 /* Value is the name of a scaled font, generated from scalable font
6355 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6356 Value is allocated from heap. */
6359 build_scalable_font_name (f
, font
, specified_pt
)
6361 struct font_name
*font
;
6364 char pixel_size
[20];
6366 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6369 /* If scalable font is for a specific resolution, compute
6370 the point size we must specify from the resolution of
6371 the display and the specified resolution of the font. */
6372 if (font
->numeric
[XLFD_RESY
] != 0)
6374 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6375 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
6380 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
6382 /* We may need a font of the different size. */
6383 pixel_value
*= font
->rescale_ratio
;
6385 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6386 font of the specified PIXEL_SIZE. */
6388 { /* Set point size of the font. */
6389 char point_size
[20];
6390 sprintf (point_size
, "%d", (int) pt
);
6391 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6392 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6396 /* Set pixel size. */
6397 sprintf (pixel_size
, "%d", pixel_value
);
6398 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6399 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6401 /* If font doesn't specify its resolution, use the
6402 resolution of the display. */
6403 if (font
->numeric
[XLFD_RESY
] == 0)
6406 sprintf (buffer
, "%d", (int) resy
);
6407 font
->fields
[XLFD_RESY
] = buffer
;
6408 font
->numeric
[XLFD_RESY
] = resy
;
6411 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6414 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6415 sprintf (buffer
, "%d", resx
);
6416 font
->fields
[XLFD_RESX
] = buffer
;
6417 font
->numeric
[XLFD_RESX
] = resx
;
6420 return build_font_name (font
);
6424 /* Value is non-zero if we are allowed to use scalable font FONT. We
6425 can't run a Lisp function here since this function may be called
6426 with input blocked. */
6429 may_use_scalable_font_p (font
)
6432 if (EQ (Vscalable_fonts_allowed
, Qt
))
6434 else if (CONSP (Vscalable_fonts_allowed
))
6436 Lisp_Object tail
, regexp
;
6438 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6440 regexp
= XCAR (tail
);
6441 if (STRINGP (regexp
)
6442 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6452 /* Return the name of the best matching font for face attributes ATTRS
6453 in the array of font_name structures FONTS which contains NFONTS
6454 elements. WIDTH_RATIO is a factor with which to multiply average
6455 widths if ATTRS specifies such a width.
6457 Value is a font name which is allocated from the heap. FONTS is
6458 freed by this function.
6460 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6461 indicate whether the resulting font should be drawn using overstrike
6462 to simulate bold-face. */
6465 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6468 struct font_name
*fonts
;
6471 int *needs_overstrike
;
6474 struct font_name
*best
;
6477 int exact_p
, avgwidth
;
6482 /* Make specified font attributes available in `specified',
6483 indexed by sort order. */
6484 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6486 int xlfd_idx
= font_sort_order
[i
];
6488 if (xlfd_idx
== XLFD_SWIDTH
)
6489 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6490 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6491 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6492 else if (xlfd_idx
== XLFD_WEIGHT
)
6493 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6494 else if (xlfd_idx
== XLFD_SLANT
)
6495 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6500 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6502 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6506 if (needs_overstrike
)
6507 *needs_overstrike
= 0;
6509 /* Start with the first non-scalable font in the list. */
6510 for (i
= 0; i
< nfonts
; ++i
)
6511 if (!font_scalable_p (fonts
+ i
))
6514 /* Find the best match among the non-scalable fonts. */
6519 for (i
= 1; i
< nfonts
; ++i
)
6520 if (!font_scalable_p (fonts
+ i
)
6521 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6525 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6533 /* Unless we found an exact match among non-scalable fonts, see if
6534 we can find a better match among scalable fonts. */
6537 /* A scalable font is better if
6539 1. its weight, slant, swidth attributes are better, or.
6541 2. the best non-scalable font doesn't have the required
6542 point size, and the scalable fonts weight, slant, swidth
6545 int non_scalable_has_exact_height_p
;
6547 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6548 non_scalable_has_exact_height_p
= 1;
6550 non_scalable_has_exact_height_p
= 0;
6552 for (i
= 0; i
< nfonts
; ++i
)
6553 if (font_scalable_p (fonts
+ i
))
6556 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6557 || (!non_scalable_has_exact_height_p
6558 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6560 non_scalable_has_exact_height_p
= 1;
6565 if (needs_overstrike
)
6567 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6568 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6570 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6572 /* We want a bold font, but didn't get one; try to use
6573 overstriking instead to simulate bold-face. However,
6574 don't overstrike an already-bold fontn unless the
6575 desired weight grossly exceeds the available weight. */
6576 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6577 *needs_overstrike
= (got_weight
- want_weight
) > 2;
6579 *needs_overstrike
= 1;
6584 if (font_scalable_p (best
))
6585 font_name
= build_scalable_font_name (f
, best
, pt
);
6587 font_name
= build_font_name (best
);
6589 /* Free font_name structures. */
6590 free_font_names (fonts
, nfonts
);
6596 /* Get a list of matching fonts on frame F, considering FAMILY
6597 and alternative font families from Vface_alternative_font_registry_alist.
6599 FAMILY is the font family whose alternatives are considered.
6601 REGISTRY, if a string, specifies a font registry and encoding to
6602 match. A value of nil means include fonts of any registry and
6605 Return in *FONTS a pointer to a vector of font_name structures for
6606 the fonts matched. Value is the number of fonts found. */
6609 try_alternative_families (f
, family
, registry
, fonts
)
6611 Lisp_Object family
, registry
;
6612 struct font_name
**fonts
;
6617 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6620 /* Try alternative font families. */
6621 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6624 for (alter
= XCDR (alter
);
6625 CONSP (alter
) && nfonts
== 0;
6626 alter
= XCDR (alter
))
6628 if (STRINGP (XCAR (alter
)))
6629 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6633 /* Try all scalable fonts before giving up. */
6634 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6636 int count
= SPECPDL_INDEX ();
6637 specbind (Qscalable_fonts_allowed
, Qt
);
6638 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6639 unbind_to (count
, Qnil
);
6646 /* Get a list of matching fonts on frame F.
6648 FAMILY, if a string, specifies a font family derived from the fontset.
6649 It is only used if the face does not specify any family in ATTRS or
6650 if we cannot find any font of the face's family.
6652 REGISTRY, if a string, specifies a font registry and encoding to
6653 match. A value of nil means include fonts of any registry and
6656 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6657 Otherwise, prefer FAMILY.
6659 Return in *FONTS a pointer to a vector of font_name structures for
6660 the fonts matched. Value is the number of fonts found. */
6663 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6666 Lisp_Object family
, registry
;
6667 struct font_name
**fonts
;
6668 int prefer_face_family
;
6671 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6672 Lisp_Object try_family
;
6674 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6676 if (STRINGP (try_family
))
6677 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6680 /* When realizing the default face and a font spec does not matched
6681 exactly, Emacs looks for ones with the same registry as the
6682 default font. On the Mac, this is mac-roman, which does not work
6683 if the family is -etl-fixed, e.g. The following widens the
6684 choices and fixes that problem. */
6685 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
)
6686 && xstricmp (SDATA (registry
), "mac-roman") == 0)
6687 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6690 if (EQ (try_family
, family
))
6691 family
= face_family
;
6693 if (nfonts
== 0 && STRINGP (family
))
6694 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6696 /* Try font family of the default face or "fixed". */
6699 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6701 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6703 family
= build_string ("fixed");
6704 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6707 /* Try any family with the given registry. */
6709 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6715 /* Return the fontset id of the base fontset name or alias name given
6716 by the fontset attribute of ATTRS. Value is -1 if the fontset
6717 attribute of ATTRS doesn't name a fontset. */
6720 face_fontset (attrs
)
6725 name
= attrs
[LFACE_FONT_INDEX
];
6726 if (!STRINGP (name
))
6728 return fs_query_fontset (name
, 0);
6732 /* Choose a name of font to use on frame F to display character C with
6733 Lisp face attributes specified by ATTRS. The font name is
6734 determined by the font-related attributes in ATTRS and the name
6735 pattern for C in FONTSET. Value is the font name which is
6736 allocated from the heap and must be freed by the caller, or NULL if
6737 we can get no information about the font name of C. It is assured
6738 that we always get some information for a single byte
6741 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6742 indicate whether the resulting font should be drawn using overstrike
6743 to simulate bold-face. */
6746 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6750 int *needs_overstrike
;
6752 Lisp_Object pattern
;
6753 char *font_name
= NULL
;
6754 struct font_name
*fonts
;
6755 int nfonts
, width_ratio
;
6757 if (needs_overstrike
)
6758 *needs_overstrike
= 0;
6760 /* Get (foundry and) family name and registry (and encoding) name of
6762 pattern
= fontset_font_pattern (f
, fontset
, c
);
6765 xassert (!SINGLE_BYTE_CHAR_P (c
));
6769 /* If what we got is a name pattern, return it. */
6770 if (STRINGP (pattern
))
6771 return xstrdup (SDATA (pattern
));
6773 /* Get a list of fonts matching that pattern and choose the
6774 best match for the specified face attributes from it. */
6775 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6776 (SINGLE_BYTE_CHAR_P (c
)
6777 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6778 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6780 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6781 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6786 #endif /* HAVE_WINDOW_SYSTEM */
6790 /***********************************************************************
6792 ***********************************************************************/
6794 /* Realize basic faces on frame F. Value is zero if frame parameters
6795 of F don't contain enough information needed to realize the default
6799 realize_basic_faces (f
)
6803 int count
= SPECPDL_INDEX ();
6805 /* Block input here so that we won't be surprised by an X expose
6806 event, for instance, without having the faces set up. */
6808 specbind (Qscalable_fonts_allowed
, Qt
);
6810 if (realize_default_face (f
))
6812 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6813 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6814 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6815 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6816 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6817 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6818 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6819 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6820 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6821 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6823 /* Reflect changes in the `menu' face in menu bars. */
6824 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6826 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6827 #ifdef USE_X_TOOLKIT
6828 x_update_menu_appearance (f
);
6835 unbind_to (count
, Qnil
);
6841 /* Realize the default face on frame F. If the face is not fully
6842 specified, make it fully-specified. Attributes of the default face
6843 that are not explicitly specified are taken from frame parameters. */
6846 realize_default_face (f
)
6849 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6851 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6852 Lisp_Object frame_font
;
6855 /* If the `default' face is not yet known, create it. */
6856 lface
= lface_from_face_name (f
, Qdefault
, 0);
6860 XSETFRAME (frame
, f
);
6861 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6865 #ifdef HAVE_WINDOW_SYSTEM
6866 if (FRAME_WINDOW_P (f
))
6868 /* Set frame_font to the value of the `font' frame parameter. */
6869 frame_font
= Fassq (Qfont
, f
->param_alist
);
6870 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6871 frame_font
= XCDR (frame_font
);
6872 set_lface_from_font_name (f
, lface
, frame_font
,
6873 f
->default_face_done_p
, 1);
6874 f
->default_face_done_p
= 1;
6876 #endif /* HAVE_WINDOW_SYSTEM */
6878 if (!FRAME_WINDOW_P (f
))
6880 LFACE_FAMILY (lface
) = build_string ("default");
6881 LFACE_SWIDTH (lface
) = Qnormal
;
6882 LFACE_HEIGHT (lface
) = make_number (1);
6883 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
6884 LFACE_WEIGHT (lface
) = Qnormal
;
6885 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
6886 LFACE_SLANT (lface
) = Qnormal
;
6887 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6890 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6891 LFACE_UNDERLINE (lface
) = Qnil
;
6893 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6894 LFACE_OVERLINE (lface
) = Qnil
;
6896 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6897 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6899 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6900 LFACE_BOX (lface
) = Qnil
;
6902 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6903 LFACE_INVERSE (lface
) = Qnil
;
6905 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6907 /* This function is called so early that colors are not yet
6908 set in the frame parameter list. */
6909 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6911 if (CONSP (color
) && STRINGP (XCDR (color
)))
6912 LFACE_FOREGROUND (lface
) = XCDR (color
);
6913 else if (FRAME_WINDOW_P (f
))
6915 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6916 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6921 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6923 /* This function is called so early that colors are not yet
6924 set in the frame parameter list. */
6925 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6926 if (CONSP (color
) && STRINGP (XCDR (color
)))
6927 LFACE_BACKGROUND (lface
) = XCDR (color
);
6928 else if (FRAME_WINDOW_P (f
))
6930 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6931 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6936 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6937 LFACE_STIPPLE (lface
) = Qnil
;
6939 /* Realize the face; it must be fully-specified now. */
6940 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6941 check_lface (lface
);
6942 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6943 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6948 /* Realize basic faces other than the default face in face cache C.
6949 SYMBOL is the face name, ID is the face id the realized face must
6950 have. The default face must have been realized already. */
6953 realize_named_face (f
, symbol
, id
)
6958 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6959 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6960 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6961 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6962 struct face
*new_face
;
6964 /* The default face must exist and be fully specified. */
6965 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6966 check_lface_attrs (attrs
);
6967 xassert (lface_fully_specified_p (attrs
));
6969 /* If SYMBOL isn't know as a face, create it. */
6973 XSETFRAME (frame
, f
);
6974 lface
= Finternal_make_lisp_face (symbol
, frame
);
6977 /* Merge SYMBOL's face with the default face. */
6978 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6979 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
6981 /* Realize the face. */
6982 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6986 /* Realize the fully-specified face with attributes ATTRS in face
6987 cache CACHE for character C. If C is a multibyte character,
6988 BASE_FACE is a face that has the same attributes. Otherwise,
6989 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6990 ID of face to remove before caching the new face. Value is a
6991 pointer to the newly created realized face. */
6993 static struct face
*
6994 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6995 struct face_cache
*cache
;
6998 struct face
*base_face
;
7003 /* LFACE must be fully specified. */
7004 xassert (cache
!= NULL
);
7005 check_lface_attrs (attrs
);
7007 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7009 /* Remove the former face. */
7010 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7011 uncache_face (cache
, former_face
);
7012 free_realized_face (cache
->f
, former_face
);
7015 if (FRAME_WINDOW_P (cache
->f
))
7016 face
= realize_x_face (cache
, attrs
, c
, base_face
);
7017 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7018 face
= realize_tty_face (cache
, attrs
, c
);
7022 /* Insert the new face. */
7023 cache_face (cache
, face
, lface_hash (attrs
));
7024 #ifdef HAVE_WINDOW_SYSTEM
7025 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
7026 load_face_font (cache
->f
, face
, c
);
7027 #endif /* HAVE_WINDOW_SYSTEM */
7032 /* Realize the fully-specified face with attributes ATTRS in face
7033 cache CACHE for character C. Do it for X frame CACHE->f. If C is
7034 a multibyte character, BASE_FACE is a face that has the same
7035 attributes. Otherwise, BASE_FACE is ignored. If the new face
7036 doesn't share font with the default face, a fontname is allocated
7037 from the heap and set in `font_name' of the new face, but it is not
7038 yet loaded here. Value is a pointer to the newly created realized
7041 static struct face
*
7042 realize_x_face (cache
, attrs
, c
, base_face
)
7043 struct face_cache
*cache
;
7046 struct face
*base_face
;
7048 #ifdef HAVE_WINDOW_SYSTEM
7049 struct face
*face
, *default_face
;
7051 Lisp_Object stipple
, overline
, strike_through
, box
;
7053 xassert (FRAME_WINDOW_P (cache
->f
));
7054 xassert (SINGLE_BYTE_CHAR_P (c
)
7057 /* Allocate a new realized face. */
7058 face
= make_realized_face (attrs
);
7062 /* If C is a multibyte character, we share all face attirbutes with
7063 BASE_FACE including the realized fontset. But, we must load a
7065 if (!SINGLE_BYTE_CHAR_P (c
))
7067 bcopy (base_face
, face
, sizeof *face
);
7070 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7071 face
->colors_copied_bitwise_p
= 1;
7073 /* to force realize_face to load font */
7078 /* Now we are realizing a face for ASCII (and unibyte) characters. */
7080 /* Determine the font to use. Most of the time, the font will be
7081 the same as the font of the default face, so try that first. */
7082 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7084 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
7085 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7087 face
->font
= default_face
->font
;
7088 face
->fontset
= default_face
->fontset
;
7089 face
->font_info_id
= default_face
->font_info_id
;
7090 face
->font_name
= default_face
->font_name
;
7091 face
->ascii_face
= face
;
7093 /* But, as we can't share the fontset, make a new realized
7094 fontset that has the same base fontset as of the default
7097 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
7101 /* If the face attribute ATTRS specifies a fontset, use it as
7102 the base of a new realized fontset. Otherwise, use the same
7103 base fontset as of the default face. The base determines
7104 registry and encoding of a font. It may also determine
7105 foundry and family. The other fields of font name pattern
7106 are constructed from ATTRS. */
7107 int fontset
= face_fontset (attrs
);
7109 if ((fontset
== -1) && default_face
)
7110 fontset
= default_face
->fontset
;
7111 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
7112 face
->font
= NULL
; /* to force realize_face to load font */
7115 /* Load colors, and set remaining attributes. */
7117 load_face_colors (f
, face
, attrs
);
7120 box
= attrs
[LFACE_BOX_INDEX
];
7123 /* A simple box of line width 1 drawn in color given by
7125 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7127 face
->box
= FACE_SIMPLE_BOX
;
7128 face
->box_line_width
= 1;
7130 else if (INTEGERP (box
))
7132 /* Simple box of specified line width in foreground color of the
7134 xassert (XINT (box
) != 0);
7135 face
->box
= FACE_SIMPLE_BOX
;
7136 face
->box_line_width
= XINT (box
);
7137 face
->box_color
= face
->foreground
;
7138 face
->box_color_defaulted_p
= 1;
7140 else if (CONSP (box
))
7142 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7143 being one of `raised' or `sunken'. */
7144 face
->box
= FACE_SIMPLE_BOX
;
7145 face
->box_color
= face
->foreground
;
7146 face
->box_color_defaulted_p
= 1;
7147 face
->box_line_width
= 1;
7151 Lisp_Object keyword
, value
;
7153 keyword
= XCAR (box
);
7161 if (EQ (keyword
, QCline_width
))
7163 if (INTEGERP (value
) && XINT (value
) != 0)
7164 face
->box_line_width
= XINT (value
);
7166 else if (EQ (keyword
, QCcolor
))
7168 if (STRINGP (value
))
7170 face
->box_color
= load_color (f
, face
, value
,
7172 face
->use_box_color_for_shadows_p
= 1;
7175 else if (EQ (keyword
, QCstyle
))
7177 if (EQ (value
, Qreleased_button
))
7178 face
->box
= FACE_RAISED_BOX
;
7179 else if (EQ (value
, Qpressed_button
))
7180 face
->box
= FACE_SUNKEN_BOX
;
7185 /* Text underline, overline, strike-through. */
7187 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7189 /* Use default color (same as foreground color). */
7190 face
->underline_p
= 1;
7191 face
->underline_defaulted_p
= 1;
7192 face
->underline_color
= 0;
7194 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7196 /* Use specified color. */
7197 face
->underline_p
= 1;
7198 face
->underline_defaulted_p
= 0;
7199 face
->underline_color
7200 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7201 LFACE_UNDERLINE_INDEX
);
7203 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7205 face
->underline_p
= 0;
7206 face
->underline_defaulted_p
= 0;
7207 face
->underline_color
= 0;
7210 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7211 if (STRINGP (overline
))
7213 face
->overline_color
7214 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7215 LFACE_OVERLINE_INDEX
);
7216 face
->overline_p
= 1;
7218 else if (EQ (overline
, Qt
))
7220 face
->overline_color
= face
->foreground
;
7221 face
->overline_color_defaulted_p
= 1;
7222 face
->overline_p
= 1;
7225 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7226 if (STRINGP (strike_through
))
7228 face
->strike_through_color
7229 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7230 LFACE_STRIKE_THROUGH_INDEX
);
7231 face
->strike_through_p
= 1;
7233 else if (EQ (strike_through
, Qt
))
7235 face
->strike_through_color
= face
->foreground
;
7236 face
->strike_through_color_defaulted_p
= 1;
7237 face
->strike_through_p
= 1;
7240 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7241 if (!NILP (stipple
))
7242 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7244 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7246 #endif /* HAVE_WINDOW_SYSTEM */
7250 /* Map a specified color of face FACE on frame F to a tty color index.
7251 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7252 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7253 default foreground/background colors. */
7256 map_tty_color (f
, face
, idx
, defaulted
)
7259 enum lface_attribute_index idx
;
7262 Lisp_Object frame
, color
, def
;
7263 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7264 unsigned long default_pixel
, default_other_pixel
, pixel
;
7266 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7270 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7271 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7275 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7276 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7279 XSETFRAME (frame
, f
);
7280 color
= face
->lface
[idx
];
7284 && CONSP (Vtty_defined_color_alist
)
7285 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7288 /* Associations in tty-defined-color-alist are of the form
7289 (NAME INDEX R G B). We need the INDEX part. */
7290 pixel
= XINT (XCAR (XCDR (def
)));
7293 if (pixel
== default_pixel
&& STRINGP (color
))
7295 pixel
= load_color (f
, face
, color
, idx
);
7297 #if defined (MSDOS) || defined (WINDOWSNT)
7298 /* If the foreground of the default face is the default color,
7299 use the foreground color defined by the frame. */
7301 if (FRAME_MSDOS_P (f
))
7304 if (pixel
== default_pixel
7305 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7308 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7310 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7311 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7314 else if (pixel
== default_other_pixel
)
7317 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7319 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7320 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7326 #endif /* MSDOS or WINDOWSNT */
7330 face
->foreground
= pixel
;
7332 face
->background
= pixel
;
7336 /* Realize the fully-specified face with attributes ATTRS in face
7337 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7338 pointer to the newly created realized face. */
7340 static struct face
*
7341 realize_tty_face (cache
, attrs
, c
)
7342 struct face_cache
*cache
;
7348 int face_colors_defaulted
= 0;
7349 struct frame
*f
= cache
->f
;
7351 /* Frame must be a termcap frame. */
7352 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7354 /* Allocate a new realized face. */
7355 face
= make_realized_face (attrs
);
7356 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7358 /* Map face attributes to TTY appearances. We map slant to
7359 dimmed text because we want italic text to appear differently
7360 and because dimmed text is probably used infrequently. */
7361 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7362 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7364 if (weight
> XLFD_WEIGHT_MEDIUM
)
7365 face
->tty_bold_p
= 1;
7366 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7367 face
->tty_dim_p
= 1;
7368 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7369 face
->tty_underline_p
= 1;
7370 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7371 face
->tty_reverse_p
= 1;
7373 /* Map color names to color indices. */
7374 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7375 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7377 /* Swap colors if face is inverse-video. If the colors are taken
7378 from the frame colors, they are already inverted, since the
7379 frame-creation function calls x-handle-reverse-video. */
7380 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7382 unsigned long tem
= face
->foreground
;
7383 face
->foreground
= face
->background
;
7384 face
->background
= tem
;
7387 if (tty_suppress_bold_inverse_default_colors_p
7389 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7390 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7391 face
->tty_bold_p
= 0;
7397 DEFUN ("tty-suppress-bold-inverse-default-colors",
7398 Ftty_suppress_bold_inverse_default_colors
,
7399 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7400 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7401 SUPPRESS non-nil means suppress it.
7402 This affects bold faces on TTYs whose foreground is the default background
7403 color of the display and whose background is the default foreground color.
7404 For such faces, the bold face attribute is ignored if this variable
7407 Lisp_Object suppress
;
7409 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7410 ++face_change_count
;
7416 /***********************************************************************
7418 ***********************************************************************/
7420 /* Return the ID of the face to use to display character CH with face
7421 property PROP on frame F in current_buffer. */
7424 compute_char_face (f
, ch
, prop
)
7431 if (NILP (current_buffer
->enable_multibyte_characters
))
7436 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7437 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7441 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7442 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7443 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7444 merge_face_ref (f
, prop
, attrs
, 1, 0);
7445 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7451 /* Return the face ID associated with buffer position POS for
7452 displaying ASCII characters. Return in *ENDPTR the position at
7453 which a different face is needed, as far as text properties and
7454 overlays are concerned. W is a window displaying current_buffer.
7456 REGION_BEG, REGION_END delimit the region, so it can be
7459 LIMIT is a position not to scan beyond. That is to limit the time
7460 this function can take.
7462 If MOUSE is non-zero, use the character's mouse-face, not its face.
7464 The face returned is suitable for displaying ASCII characters. */
7467 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7468 endptr
, limit
, mouse
)
7471 int region_beg
, region_end
;
7476 struct frame
*f
= XFRAME (w
->frame
);
7477 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7478 Lisp_Object prop
, position
;
7480 Lisp_Object
*overlay_vec
;
7483 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7484 Lisp_Object limit1
, end
;
7485 struct face
*default_face
;
7487 /* W must display the current buffer. We could write this function
7488 to use the frame and buffer of W, but right now it doesn't. */
7489 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7491 XSETFRAME (frame
, f
);
7492 XSETFASTINT (position
, pos
);
7495 if (pos
< region_beg
&& region_beg
< endpos
)
7496 endpos
= region_beg
;
7498 /* Get the `face' or `mouse_face' text property at POS, and
7499 determine the next position at which the property changes. */
7500 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7501 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7502 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7504 endpos
= XINT (end
);
7506 /* Look at properties from overlays. */
7510 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7511 if (next_overlay
< endpos
)
7512 endpos
= next_overlay
;
7517 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7519 /* Optimize common cases where we can use the default face. */
7522 && !(pos
>= region_beg
&& pos
< region_end
))
7523 return DEFAULT_FACE_ID
;
7525 /* Begin with attributes from the default face. */
7526 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7528 /* Merge in attributes specified via text properties. */
7530 merge_face_ref (f
, prop
, attrs
, 1, 0);
7532 /* Now merge the overlay data. */
7533 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7534 for (i
= 0; i
< noverlays
; i
++)
7539 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7541 merge_face_ref (f
, prop
, attrs
, 1, 0);
7543 oend
= OVERLAY_END (overlay_vec
[i
]);
7544 oendpos
= OVERLAY_POSITION (oend
);
7545 if (oendpos
< endpos
)
7549 /* If in the region, merge in the region face. */
7550 if (pos
>= region_beg
&& pos
< region_end
)
7552 merge_named_face (f
, Qregion
, attrs
, 0);
7554 if (region_end
< endpos
)
7555 endpos
= region_end
;
7560 /* Look up a realized face with the given face attributes,
7561 or realize a new one for ASCII characters. */
7562 return lookup_face (f
, attrs
, 0, NULL
);
7566 /* Compute the face at character position POS in Lisp string STRING on
7567 window W, for ASCII characters.
7569 If STRING is an overlay string, it comes from position BUFPOS in
7570 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7571 not an overlay string. W must display the current buffer.
7572 REGION_BEG and REGION_END give the start and end positions of the
7573 region; both are -1 if no region is visible.
7575 BASE_FACE_ID is the id of a face to merge with. For strings coming
7576 from overlays or the `display' property it is the face at BUFPOS.
7578 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7580 Set *ENDPTR to the next position where to check for faces in
7581 STRING; -1 if the face is constant from POS to the end of the
7584 Value is the id of the face to use. The face returned is suitable
7585 for displaying ASCII characters. */
7588 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7589 region_end
, endptr
, base_face_id
, mouse_p
)
7593 int region_beg
, region_end
;
7595 enum face_id base_face_id
;
7598 Lisp_Object prop
, position
, end
, limit
;
7599 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7600 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7601 struct face
*base_face
;
7602 int multibyte_p
= STRING_MULTIBYTE (string
);
7603 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7605 /* Get the value of the face property at the current position within
7606 STRING. Value is nil if there is no face property. */
7607 XSETFASTINT (position
, pos
);
7608 prop
= Fget_text_property (position
, prop_name
, string
);
7610 /* Get the next position at which to check for faces. Value of end
7611 is nil if face is constant all the way to the end of the string.
7612 Otherwise it is a string position where to check faces next.
7613 Limit is the maximum position up to which to check for property
7614 changes in Fnext_single_property_change. Strings are usually
7615 short, so set the limit to the end of the string. */
7616 XSETFASTINT (limit
, SCHARS (string
));
7617 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7619 *endptr
= XFASTINT (end
);
7623 base_face
= FACE_FROM_ID (f
, base_face_id
);
7624 xassert (base_face
);
7626 /* Optimize the default case that there is no face property and we
7627 are not in the region. */
7629 && (base_face_id
!= DEFAULT_FACE_ID
7630 /* BUFPOS <= 0 means STRING is not an overlay string, so
7631 that the region doesn't have to be taken into account. */
7633 || bufpos
< region_beg
7634 || bufpos
>= region_end
)
7636 /* We can't realize faces for different charsets differently
7637 if we don't have fonts, so we can stop here if not working
7638 on a window-system frame. */
7639 || !FRAME_WINDOW_P (f
)
7640 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7641 return base_face
->id
;
7643 /* Begin with attributes from the base face. */
7644 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7646 /* Merge in attributes specified via text properties. */
7648 merge_face_ref (f
, prop
, attrs
, 1, 0);
7650 /* If in the region, merge in the region face. */
7652 && bufpos
>= region_beg
7653 && bufpos
< region_end
)
7654 merge_named_face (f
, Qregion
, attrs
, 0);
7656 /* Look up a realized face with the given face attributes,
7657 or realize a new one for ASCII characters. */
7658 return lookup_face (f
, attrs
, 0, NULL
);
7663 /***********************************************************************
7665 ***********************************************************************/
7669 /* Print the contents of the realized face FACE to stderr. */
7672 dump_realized_face (face
)
7675 fprintf (stderr
, "ID: %d\n", face
->id
);
7676 #ifdef HAVE_X_WINDOWS
7677 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
7679 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7681 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7682 fprintf (stderr
, "background: 0x%lx (%s)\n",
7684 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7685 fprintf (stderr
, "font_name: %s (%s)\n",
7687 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7688 #ifdef HAVE_X_WINDOWS
7689 fprintf (stderr
, "font = %p\n", face
->font
);
7691 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7692 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7693 fprintf (stderr
, "underline: %d (%s)\n",
7695 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7696 fprintf (stderr
, "hash: %d\n", face
->hash
);
7697 fprintf (stderr
, "charset: %d\n", face
->charset
);
7701 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7709 fprintf (stderr
, "font selection order: ");
7710 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7711 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7712 fprintf (stderr
, "\n");
7714 fprintf (stderr
, "alternative fonts: ");
7715 debug_print (Vface_alternative_font_family_alist
);
7716 fprintf (stderr
, "\n");
7718 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7719 Fdump_face (make_number (i
));
7725 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7727 error ("Not a valid face");
7728 dump_realized_face (face
);
7735 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7736 0, 0, 0, doc
: /* */)
7739 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7740 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7741 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7745 #endif /* GLYPH_DEBUG != 0 */
7749 /***********************************************************************
7751 ***********************************************************************/
7756 Qface
= intern ("face");
7758 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7759 staticpro (&Qbitmap_spec_p
);
7760 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7761 staticpro (&Qframe_update_face_colors
);
7763 /* Lisp face attribute keywords. */
7764 QCfamily
= intern (":family");
7765 staticpro (&QCfamily
);
7766 QCheight
= intern (":height");
7767 staticpro (&QCheight
);
7768 QCweight
= intern (":weight");
7769 staticpro (&QCweight
);
7770 QCslant
= intern (":slant");
7771 staticpro (&QCslant
);
7772 QCunderline
= intern (":underline");
7773 staticpro (&QCunderline
);
7774 QCinverse_video
= intern (":inverse-video");
7775 staticpro (&QCinverse_video
);
7776 QCreverse_video
= intern (":reverse-video");
7777 staticpro (&QCreverse_video
);
7778 QCforeground
= intern (":foreground");
7779 staticpro (&QCforeground
);
7780 QCbackground
= intern (":background");
7781 staticpro (&QCbackground
);
7782 QCstipple
= intern (":stipple");;
7783 staticpro (&QCstipple
);
7784 QCwidth
= intern (":width");
7785 staticpro (&QCwidth
);
7786 QCfont
= intern (":font");
7787 staticpro (&QCfont
);
7788 QCbold
= intern (":bold");
7789 staticpro (&QCbold
);
7790 QCitalic
= intern (":italic");
7791 staticpro (&QCitalic
);
7792 QCoverline
= intern (":overline");
7793 staticpro (&QCoverline
);
7794 QCstrike_through
= intern (":strike-through");
7795 staticpro (&QCstrike_through
);
7796 QCbox
= intern (":box");
7798 QCinherit
= intern (":inherit");
7799 staticpro (&QCinherit
);
7801 /* Symbols used for Lisp face attribute values. */
7802 QCcolor
= intern (":color");
7803 staticpro (&QCcolor
);
7804 QCline_width
= intern (":line-width");
7805 staticpro (&QCline_width
);
7806 QCstyle
= intern (":style");
7807 staticpro (&QCstyle
);
7808 Qreleased_button
= intern ("released-button");
7809 staticpro (&Qreleased_button
);
7810 Qpressed_button
= intern ("pressed-button");
7811 staticpro (&Qpressed_button
);
7812 Qnormal
= intern ("normal");
7813 staticpro (&Qnormal
);
7814 Qultra_light
= intern ("ultra-light");
7815 staticpro (&Qultra_light
);
7816 Qextra_light
= intern ("extra-light");
7817 staticpro (&Qextra_light
);
7818 Qlight
= intern ("light");
7819 staticpro (&Qlight
);
7820 Qsemi_light
= intern ("semi-light");
7821 staticpro (&Qsemi_light
);
7822 Qsemi_bold
= intern ("semi-bold");
7823 staticpro (&Qsemi_bold
);
7824 Qbold
= intern ("bold");
7826 Qextra_bold
= intern ("extra-bold");
7827 staticpro (&Qextra_bold
);
7828 Qultra_bold
= intern ("ultra-bold");
7829 staticpro (&Qultra_bold
);
7830 Qoblique
= intern ("oblique");
7831 staticpro (&Qoblique
);
7832 Qitalic
= intern ("italic");
7833 staticpro (&Qitalic
);
7834 Qreverse_oblique
= intern ("reverse-oblique");
7835 staticpro (&Qreverse_oblique
);
7836 Qreverse_italic
= intern ("reverse-italic");
7837 staticpro (&Qreverse_italic
);
7838 Qultra_condensed
= intern ("ultra-condensed");
7839 staticpro (&Qultra_condensed
);
7840 Qextra_condensed
= intern ("extra-condensed");
7841 staticpro (&Qextra_condensed
);
7842 Qcondensed
= intern ("condensed");
7843 staticpro (&Qcondensed
);
7844 Qsemi_condensed
= intern ("semi-condensed");
7845 staticpro (&Qsemi_condensed
);
7846 Qsemi_expanded
= intern ("semi-expanded");
7847 staticpro (&Qsemi_expanded
);
7848 Qexpanded
= intern ("expanded");
7849 staticpro (&Qexpanded
);
7850 Qextra_expanded
= intern ("extra-expanded");
7851 staticpro (&Qextra_expanded
);
7852 Qultra_expanded
= intern ("ultra-expanded");
7853 staticpro (&Qultra_expanded
);
7854 Qbackground_color
= intern ("background-color");
7855 staticpro (&Qbackground_color
);
7856 Qforeground_color
= intern ("foreground-color");
7857 staticpro (&Qforeground_color
);
7858 Qunspecified
= intern ("unspecified");
7859 staticpro (&Qunspecified
);
7861 Qface_alias
= intern ("face-alias");
7862 staticpro (&Qface_alias
);
7863 Qdefault
= intern ("default");
7864 staticpro (&Qdefault
);
7865 Qtool_bar
= intern ("tool-bar");
7866 staticpro (&Qtool_bar
);
7867 Qregion
= intern ("region");
7868 staticpro (&Qregion
);
7869 Qfringe
= intern ("fringe");
7870 staticpro (&Qfringe
);
7871 Qheader_line
= intern ("header-line");
7872 staticpro (&Qheader_line
);
7873 Qscroll_bar
= intern ("scroll-bar");
7874 staticpro (&Qscroll_bar
);
7875 Qmenu
= intern ("menu");
7877 Qcursor
= intern ("cursor");
7878 staticpro (&Qcursor
);
7879 Qborder
= intern ("border");
7880 staticpro (&Qborder
);
7881 Qmouse
= intern ("mouse");
7882 staticpro (&Qmouse
);
7883 Qmode_line_inactive
= intern ("mode-line-inactive");
7884 staticpro (&Qmode_line_inactive
);
7885 Qtty_color_desc
= intern ("tty-color-desc");
7886 staticpro (&Qtty_color_desc
);
7887 Qtty_color_standard_values
= intern ("tty-color-standard-values");
7888 staticpro (&Qtty_color_standard_values
);
7889 Qtty_color_by_index
= intern ("tty-color-by-index");
7890 staticpro (&Qtty_color_by_index
);
7891 Qtty_color_alist
= intern ("tty-color-alist");
7892 staticpro (&Qtty_color_alist
);
7893 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7894 staticpro (&Qscalable_fonts_allowed
);
7896 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7897 staticpro (&Vparam_value_alist
);
7898 Vface_alternative_font_family_alist
= Qnil
;
7899 staticpro (&Vface_alternative_font_family_alist
);
7900 Vface_alternative_font_registry_alist
= Qnil
;
7901 staticpro (&Vface_alternative_font_registry_alist
);
7903 defsubr (&Sinternal_make_lisp_face
);
7904 defsubr (&Sinternal_lisp_face_p
);
7905 defsubr (&Sinternal_set_lisp_face_attribute
);
7906 #ifdef HAVE_WINDOW_SYSTEM
7907 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7909 defsubr (&Scolor_gray_p
);
7910 defsubr (&Scolor_supported_p
);
7911 defsubr (&Sface_attribute_relative_p
);
7912 defsubr (&Smerge_face_attribute
);
7913 defsubr (&Sinternal_get_lisp_face_attribute
);
7914 defsubr (&Sinternal_lisp_face_attribute_values
);
7915 defsubr (&Sinternal_lisp_face_equal_p
);
7916 defsubr (&Sinternal_lisp_face_empty_p
);
7917 defsubr (&Sinternal_copy_lisp_face
);
7918 defsubr (&Sinternal_merge_in_global_face
);
7919 defsubr (&Sface_font
);
7920 defsubr (&Sframe_face_alist
);
7921 defsubr (&Sdisplay_supports_face_attributes_p
);
7922 defsubr (&Scolor_distance
);
7923 defsubr (&Sinternal_set_font_selection_order
);
7924 defsubr (&Sinternal_set_alternative_font_family_alist
);
7925 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7926 defsubr (&Sface_attributes_as_vector
);
7928 defsubr (&Sdump_face
);
7929 defsubr (&Sshow_face_resources
);
7930 #endif /* GLYPH_DEBUG */
7931 defsubr (&Sclear_face_cache
);
7932 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7934 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7935 defsubr (&Sdump_colors
);
7938 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7939 doc
: /* *Limit for font matching.
7940 If an integer > 0, font matching functions won't load more than
7941 that number of fonts when searching for a matching font. */);
7942 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7944 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7945 doc
: /* List of global face definitions (for internal use only.) */);
7946 Vface_new_frame_defaults
= Qnil
;
7948 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7949 doc
: /* *Default stipple pattern used on monochrome displays.
7950 This stipple pattern is used on monochrome displays
7951 instead of shades of gray for a face background color.
7952 See `set-face-stipple' for possible values for this variable. */);
7953 Vface_default_stipple
= build_string ("gray3");
7955 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7956 doc
: /* An alist of defined terminal colors and their RGB values. */);
7957 Vtty_defined_color_alist
= Qnil
;
7959 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7960 doc
: /* Allowed scalable fonts.
7961 A value of nil means don't allow any scalable fonts.
7962 A value of t means allow any scalable font.
7963 Otherwise, value must be a list of regular expressions. A font may be
7964 scaled if its name matches a regular expression in the list.
7965 Note that if value is nil, a scalable font might still be used, if no
7966 other font of the appropriate family and registry is available. */);
7967 Vscalable_fonts_allowed
= Qnil
;
7969 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7970 doc
: /* List of ignored fonts.
7971 Each element is a regular expression that matches names of fonts to
7973 Vface_ignored_fonts
= Qnil
;
7975 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7976 doc
: /* Alist of fonts vs the rescaling factors.
7977 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7978 FONT-NAME-PATTERN is a regular expression matching a font name, and
7979 RESCALE-RATIO is a floating point number to specify how much larger
7980 \(or smaller) font we should use. For instance, if a face requests
7981 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7982 Vface_font_rescale_alist
= Qnil
;
7984 #ifdef HAVE_WINDOW_SYSTEM
7985 defsubr (&Sbitmap_spec_p
);
7986 defsubr (&Sx_list_fonts
);
7987 defsubr (&Sinternal_face_x_get_resource
);
7988 defsubr (&Sx_family_fonts
);
7989 defsubr (&Sx_font_family_list
);
7990 #endif /* HAVE_WINDOW_SYSTEM */
7993 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7994 (do not change this comment) */