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 If FRAME is nil or omitted, use the selected frame.
1548 COLOR must be a valid color name. */)
1549 (color
, frame
, background_p
)
1550 Lisp_Object frame
, color
, background_p
;
1554 CHECK_STRING (color
);
1556 frame
= selected_frame
;
1558 CHECK_FRAME (frame
);
1560 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1566 /* Load color with name NAME for use by face FACE on frame F.
1567 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1568 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1569 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1570 pixel color. If color cannot be loaded, display a message, and
1571 return the foreground, background or underline color of F, but
1572 record that fact in flags of the face so that we don't try to free
1576 load_color (f
, face
, name
, target_index
)
1580 enum lface_attribute_index target_index
;
1584 xassert (STRINGP (name
));
1585 xassert (target_index
== LFACE_FOREGROUND_INDEX
1586 || target_index
== LFACE_BACKGROUND_INDEX
1587 || target_index
== LFACE_UNDERLINE_INDEX
1588 || target_index
== LFACE_OVERLINE_INDEX
1589 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1590 || target_index
== LFACE_BOX_INDEX
);
1592 /* if the color map is full, defined_color will return a best match
1593 to the values in an existing cell. */
1594 if (!defined_color (f
, SDATA (name
), &color
, 1))
1596 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1598 switch (target_index
)
1600 case LFACE_FOREGROUND_INDEX
:
1601 face
->foreground_defaulted_p
= 1;
1602 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1605 case LFACE_BACKGROUND_INDEX
:
1606 face
->background_defaulted_p
= 1;
1607 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1610 case LFACE_UNDERLINE_INDEX
:
1611 face
->underline_defaulted_p
= 1;
1612 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1615 case LFACE_OVERLINE_INDEX
:
1616 face
->overline_color_defaulted_p
= 1;
1617 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1620 case LFACE_STRIKE_THROUGH_INDEX
:
1621 face
->strike_through_color_defaulted_p
= 1;
1622 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1625 case LFACE_BOX_INDEX
:
1626 face
->box_color_defaulted_p
= 1;
1627 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1636 ++ncolors_allocated
;
1643 #ifdef HAVE_WINDOW_SYSTEM
1645 /* Load colors for face FACE which is used on frame F. Colors are
1646 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1647 of ATTRS. If the background color specified is not supported on F,
1648 try to emulate gray colors with a stipple from Vface_default_stipple. */
1651 load_face_colors (f
, face
, attrs
)
1658 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1659 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1661 /* Swap colors if face is inverse-video. */
1662 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1670 /* Check for support for foreground, not for background because
1671 face_color_supported_p is smart enough to know that grays are
1672 "supported" as background because we are supposed to use stipple
1674 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1675 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1677 x_destroy_bitmap (f
, face
->stipple
);
1678 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1679 &face
->pixmap_w
, &face
->pixmap_h
);
1682 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1683 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1687 /* Free color PIXEL on frame F. */
1690 unload_color (f
, pixel
)
1692 unsigned long pixel
;
1694 #ifdef HAVE_X_WINDOWS
1698 x_free_colors (f
, &pixel
, 1);
1705 /* Free colors allocated for FACE. */
1708 free_face_colors (f
, face
)
1712 #ifdef HAVE_X_WINDOWS
1713 if (face
->colors_copied_bitwise_p
)
1718 if (!face
->foreground_defaulted_p
)
1720 x_free_colors (f
, &face
->foreground
, 1);
1721 IF_DEBUG (--ncolors_allocated
);
1724 if (!face
->background_defaulted_p
)
1726 x_free_colors (f
, &face
->background
, 1);
1727 IF_DEBUG (--ncolors_allocated
);
1730 if (face
->underline_p
1731 && !face
->underline_defaulted_p
)
1733 x_free_colors (f
, &face
->underline_color
, 1);
1734 IF_DEBUG (--ncolors_allocated
);
1737 if (face
->overline_p
1738 && !face
->overline_color_defaulted_p
)
1740 x_free_colors (f
, &face
->overline_color
, 1);
1741 IF_DEBUG (--ncolors_allocated
);
1744 if (face
->strike_through_p
1745 && !face
->strike_through_color_defaulted_p
)
1747 x_free_colors (f
, &face
->strike_through_color
, 1);
1748 IF_DEBUG (--ncolors_allocated
);
1751 if (face
->box
!= FACE_NO_BOX
1752 && !face
->box_color_defaulted_p
)
1754 x_free_colors (f
, &face
->box_color
, 1);
1755 IF_DEBUG (--ncolors_allocated
);
1759 #endif /* HAVE_X_WINDOWS */
1762 #endif /* HAVE_WINDOW_SYSTEM */
1766 /***********************************************************************
1768 ***********************************************************************/
1770 /* An enumerator for each field of an XLFD font name. */
1791 /* An enumerator for each possible slant value of a font. Taken from
1792 the XLFD specification. */
1800 XLFD_SLANT_REVERSE_ITALIC
,
1801 XLFD_SLANT_REVERSE_OBLIQUE
,
1805 /* Relative font weight according to XLFD documentation. */
1809 XLFD_WEIGHT_UNKNOWN
,
1810 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1811 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1812 XLFD_WEIGHT_LIGHT
, /* 30 */
1813 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1814 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1815 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1816 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1817 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1818 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1821 /* Relative proportionate width. */
1825 XLFD_SWIDTH_UNKNOWN
,
1826 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1827 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1828 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1829 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1830 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1831 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1832 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1833 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1834 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1837 /* Structure used for tables mapping XLFD weight, slant, and width
1838 names to numeric and symbolic values. */
1844 Lisp_Object
*symbol
;
1847 /* Table of XLFD slant names and their numeric and symbolic
1848 representations. This table must be sorted by slant names in
1851 static struct table_entry slant_table
[] =
1853 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1854 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1855 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1856 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1857 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1858 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1861 /* Table of XLFD weight names. This table must be sorted by weight
1862 names in ascending order. */
1864 static struct table_entry weight_table
[] =
1866 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1867 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1868 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1869 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1870 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1871 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1872 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1873 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1874 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1875 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1876 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1877 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1878 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1879 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1880 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1881 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1884 /* Table of XLFD width names. This table must be sorted by width
1885 names in ascending order. */
1887 static struct table_entry swidth_table
[] =
1889 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1890 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1891 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1892 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1893 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1894 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1895 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1896 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1897 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1898 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1899 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1900 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1901 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1902 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1903 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1906 /* Structure used to hold the result of splitting font names in XLFD
1907 format into their fields. */
1911 /* The original name which is modified destructively by
1912 split_font_name. The pointer is kept here to be able to free it
1913 if it was allocated from the heap. */
1916 /* Font name fields. Each vector element points into `name' above.
1917 Fields are NUL-terminated. */
1918 char *fields
[XLFD_LAST
];
1920 /* Numeric values for those fields that interest us. See
1921 split_font_name for which these are. */
1922 int numeric
[XLFD_LAST
];
1924 /* If the original name matches one of Vface_font_rescale_alist,
1925 the value is the corresponding rescale ratio. Otherwise, the
1927 double rescale_ratio
;
1929 /* Lower value mean higher priority. */
1930 int registry_priority
;
1933 /* The frame in effect when sorting font names. Set temporarily in
1934 sort_fonts so that it is available in font comparison functions. */
1936 static struct frame
*font_frame
;
1938 /* Order by which font selection chooses fonts. The default values
1939 mean `first, find a best match for the font width, then for the
1940 font height, then for weight, then for slant.' This variable can be
1941 set via set-face-font-sort-order. */
1944 static int font_sort_order
[4] = {
1945 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1948 static int font_sort_order
[4];
1951 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1952 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1953 is a pointer to the matching table entry or null if no table entry
1956 static struct table_entry
*
1957 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1958 struct table_entry
*table
;
1960 struct font_name
*font
;
1963 /* Function split_font_name converts fields to lower-case, so there
1964 is no need to use xstrlwr or xstricmp here. */
1965 char *s
= font
->fields
[field_index
];
1966 int low
, mid
, high
, cmp
;
1973 mid
= (low
+ high
) / 2;
1974 cmp
= strcmp (table
[mid
].name
, s
);
1988 /* Return a numeric representation for font name field
1989 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1990 has DIM entries. Value is the numeric value found or DFLT if no
1991 table entry matches. This function is used to translate weight,
1992 slant, and swidth names of XLFD font names to numeric values. */
1995 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1996 struct table_entry
*table
;
1998 struct font_name
*font
;
2002 struct table_entry
*p
;
2003 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2004 return p
? p
->numeric
: dflt
;
2008 /* Return a symbolic representation for font name field
2009 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2010 has DIM entries. Value is the symbolic value found or DFLT if no
2011 table entry matches. This function is used to translate weight,
2012 slant, and swidth names of XLFD font names to symbols. */
2014 static INLINE Lisp_Object
2015 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2016 struct table_entry
*table
;
2018 struct font_name
*font
;
2022 struct table_entry
*p
;
2023 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2024 return p
? *p
->symbol
: dflt
;
2028 /* Return a numeric value for the slant of the font given by FONT. */
2031 xlfd_numeric_slant (font
)
2032 struct font_name
*font
;
2034 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2035 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2039 /* Return a symbol representing the weight of the font given by FONT. */
2041 static INLINE Lisp_Object
2042 xlfd_symbolic_slant (font
)
2043 struct font_name
*font
;
2045 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2046 font
, XLFD_SLANT
, Qnormal
);
2050 /* Return a numeric value for the weight of the font given by FONT. */
2053 xlfd_numeric_weight (font
)
2054 struct font_name
*font
;
2056 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2057 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2061 /* Return a symbol representing the slant of the font given by FONT. */
2063 static INLINE Lisp_Object
2064 xlfd_symbolic_weight (font
)
2065 struct font_name
*font
;
2067 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2068 font
, XLFD_WEIGHT
, Qnormal
);
2072 /* Return a numeric value for the swidth of the font whose XLFD font
2073 name fields are found in FONT. */
2076 xlfd_numeric_swidth (font
)
2077 struct font_name
*font
;
2079 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2080 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2084 /* Return a symbolic value for the swidth of FONT. */
2086 static INLINE Lisp_Object
2087 xlfd_symbolic_swidth (font
)
2088 struct font_name
*font
;
2090 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2091 font
, XLFD_SWIDTH
, Qnormal
);
2095 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2096 entries. Value is a pointer to the matching table entry or null if
2097 no element of TABLE contains SYMBOL. */
2099 static struct table_entry
*
2100 face_value (table
, dim
, symbol
)
2101 struct table_entry
*table
;
2107 xassert (SYMBOLP (symbol
));
2109 for (i
= 0; i
< dim
; ++i
)
2110 if (EQ (*table
[i
].symbol
, symbol
))
2113 return i
< dim
? table
+ i
: NULL
;
2117 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2118 entries. Value is -1 if SYMBOL is not found in TABLE. */
2121 face_numeric_value (table
, dim
, symbol
)
2122 struct table_entry
*table
;
2126 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2127 return p
? p
->numeric
: -1;
2131 /* Return a numeric value representing the weight specified by Lisp
2132 symbol WEIGHT. Value is one of the enumerators of enum
2136 face_numeric_weight (weight
)
2139 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2143 /* Return a numeric value representing the slant specified by Lisp
2144 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2147 face_numeric_slant (slant
)
2150 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2154 /* Return a numeric value representing the swidth specified by Lisp
2155 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2158 face_numeric_swidth (width
)
2161 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2165 #ifdef HAVE_WINDOW_SYSTEM
2167 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2171 struct font_name
*font
;
2173 /* Function split_font_name converts fields to lower-case, so there
2174 is no need to use tolower here. */
2175 return *font
->fields
[XLFD_SPACING
] != 'p';
2179 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2181 The actual height of the font when displayed on F depends on the
2182 resolution of both the font and frame. For example, a 10pt font
2183 designed for a 100dpi display will display larger than 10pt on a
2184 75dpi display. (It's not unusual to use fonts not designed for the
2185 display one is using. For example, some intlfonts are available in
2186 72dpi versions, only.)
2188 Value is the real point size of FONT on frame F, or 0 if it cannot
2192 xlfd_point_size (f
, font
)
2194 struct font_name
*font
;
2196 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2197 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2201 if (*pixel_field
== '[')
2203 /* The pixel size field is `[A B C D]' which specifies
2204 a transformation matrix.
2210 by which all glyphs of the font are transformed. The spec
2211 says that s scalar value N for the pixel size is equivalent
2212 to A = N * resx/resy, B = C = 0, D = N. */
2213 char *start
= pixel_field
+ 1, *end
;
2217 for (i
= 0; i
< 4; ++i
)
2219 matrix
[i
] = strtod (start
, &end
);
2226 pixel
= atoi (pixel_field
);
2231 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2237 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2238 of frame F. This function is used to guess a point size of font
2239 when only the pixel height of the font is available. */
2242 pixel_point_size (f
, pixel
)
2246 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2250 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2251 point size of one dot. */
2252 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2253 int_pt
= real_pt
+ 0.5;
2259 /* Return a rescaling ratio of a font of NAME. */
2262 font_rescale_ratio (name
)
2265 Lisp_Object tail
, elt
;
2267 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2270 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2271 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2272 return XFLOAT_DATA (XCDR (elt
));
2278 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2279 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2280 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2281 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2282 zero if the font name doesn't have the format we expect. The
2283 expected format is a font name that starts with a `-' and has
2284 XLFD_LAST fields separated by `-'. */
2287 split_font_name (f
, font
, numeric_p
)
2289 struct font_name
*font
;
2294 double rescale_ratio
;
2297 /* This must be done before splitting the font name. */
2298 rescale_ratio
= font_rescale_ratio (font
->name
);
2300 if (*font
->name
== '-')
2302 char *p
= xstrlwr (font
->name
) + 1;
2304 while (i
< XLFD_LAST
)
2306 font
->fields
[i
] = p
;
2309 /* Pixel and point size may be of the form `[....]'. For
2310 BNF, see XLFD spec, chapter 4. Negative values are
2311 indicated by tilde characters which we replace with
2312 `-' characters, here. */
2314 && (i
- 1 == XLFD_PIXEL_SIZE
2315 || i
- 1 == XLFD_POINT_SIZE
))
2320 for (++p
; *p
&& *p
!= ']'; ++p
)
2324 /* Check that the matrix contains 4 floating point
2326 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2329 if (strtod (start
, &end
) == 0 && start
== end
)
2336 while (*p
&& *p
!= '-')
2346 success_p
= i
== XLFD_LAST
;
2348 /* If requested, and font name was in the expected format,
2349 compute numeric values for some fields. */
2350 if (numeric_p
&& success_p
)
2352 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2353 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2354 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2355 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2356 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2357 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2358 font
->rescale_ratio
= rescale_ratio
;
2361 /* Initialize it to zero. It will be overridden by font_list while
2362 trying alternate registries. */
2363 font
->registry_priority
= 0;
2369 /* Build an XLFD font name from font name fields in FONT. Value is a
2370 pointer to the font name, which is allocated via xmalloc. */
2373 build_font_name (font
)
2374 struct font_name
*font
;
2378 char *font_name
= (char *) xmalloc (size
);
2379 int total_length
= 0;
2381 for (i
= 0; i
< XLFD_LAST
; ++i
)
2383 /* Add 1 because of the leading `-'. */
2384 int len
= strlen (font
->fields
[i
]) + 1;
2386 /* Reallocate font_name if necessary. Add 1 for the final
2388 if (total_length
+ len
+ 1 >= size
)
2390 int new_size
= max (2 * size
, size
+ len
+ 1);
2391 int sz
= new_size
* sizeof *font_name
;
2392 font_name
= (char *) xrealloc (font_name
, sz
);
2396 font_name
[total_length
] = '-';
2397 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2398 total_length
+= len
;
2401 font_name
[total_length
] = 0;
2406 /* Free an array FONTS of N font_name structures. This frees FONTS
2407 itself and all `name' fields in its elements. */
2410 free_font_names (fonts
, n
)
2411 struct font_name
*fonts
;
2415 xfree (fonts
[--n
].name
);
2420 /* Sort vector FONTS of font_name structures which contains NFONTS
2421 elements using qsort and comparison function CMPFN. F is the frame
2422 on which the fonts will be used. The global variable font_frame
2423 is temporarily set to F to make it available in CMPFN. */
2426 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2428 struct font_name
*fonts
;
2430 int (*cmpfn
) P_ ((const void *, const void *));
2433 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2438 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2439 display in x_display_list. FONTS is a pointer to a vector of
2440 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2441 alternative patterns from Valternate_fontname_alist if no fonts are
2442 found matching PATTERN.
2444 For all fonts found, set FONTS[i].name to the name of the font,
2445 allocated via xmalloc, and split font names into fields. Ignore
2446 fonts that we can't parse. Value is the number of fonts found. */
2449 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2452 struct font_name
**pfonts
;
2453 int nfonts
, try_alternatives_p
;
2457 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2458 better to do it the other way around. */
2460 Lisp_Object lpattern
, tem
;
2461 struct font_name
*fonts
= 0;
2462 int num_fonts
= nfonts
;
2465 lpattern
= build_string (pattern
);
2467 /* Get the list of fonts matching PATTERN. */
2470 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2473 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2476 if (nfonts
< 0 && CONSP (lfonts
))
2477 num_fonts
= XFASTINT (Flength (lfonts
));
2479 /* Make a copy of the font names we got from X, and
2480 split them into fields. */
2482 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2484 Lisp_Object elt
, tail
;
2485 const char *name
= SDATA (XCAR (tem
));
2487 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2488 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2492 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2503 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2507 /* Make a copy of the font name. */
2508 fonts
[n
].name
= xstrdup (name
);
2510 if (split_font_name (f
, fonts
+ n
, 1))
2512 if (font_scalable_p (fonts
+ n
)
2513 && !may_use_scalable_font_p (name
))
2516 xfree (fonts
[n
].name
);
2522 xfree (fonts
[n
].name
);
2525 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2526 if (n
== 0 && try_alternatives_p
)
2528 Lisp_Object list
= Valternate_fontname_alist
;
2536 while (CONSP (list
))
2538 Lisp_Object entry
= XCAR (list
);
2540 && STRINGP (XCAR (entry
))
2541 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2548 Lisp_Object patterns
= XCAR (list
);
2551 while (CONSP (patterns
)
2552 /* If list is screwed up, give up. */
2553 && (name
= XCAR (patterns
),
2555 /* Ignore patterns equal to PATTERN because we tried that
2556 already with no success. */
2557 && (strcmp (SDATA (name
), pattern
) == 0
2558 || (n
= x_face_list_fonts (f
, SDATA (name
),
2561 patterns
= XCDR (patterns
);
2569 /* Check if a font matching pattern_offset_t on frame F is available
2570 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2571 a font name pattern is generated from FAMILY and REGISTRY. */
2574 face_font_available_p (f
, pattern
)
2576 Lisp_Object pattern
;
2580 if (! STRINGP (pattern
))
2582 Lisp_Object family
, registry
;
2583 char *family_str
, *registry_str
, *pattern_str
;
2585 CHECK_CONS (pattern
);
2586 family
= XCAR (pattern
);
2591 CHECK_STRING (family
);
2592 family_str
= (char *) SDATA (family
);
2594 registry
= XCDR (pattern
);
2595 if (NILP (registry
))
2599 CHECK_STRING (registry
);
2600 registry_str
= (char *) SDATA (registry
);
2603 pattern_str
= (char *) alloca (strlen (family_str
)
2604 + strlen (registry_str
)
2606 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2607 strcat (pattern_str
, family_str
);
2608 strcat (pattern_str
, "-*-");
2609 strcat (pattern_str
, registry_str
);
2610 if (!index (registry_str
, '-'))
2612 if (registry_str
[strlen (registry_str
) - 1] == '*')
2613 strcat (pattern_str
, "-*");
2615 strcat (pattern_str
, "*-*");
2617 pattern
= build_string (pattern_str
);
2620 /* Get the list of fonts matching PATTERN. */
2623 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2626 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2628 return XINT (Flength (fonts
));
2632 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2633 using comparison function CMPFN. Value is the number of fonts
2634 found. If value is non-zero, *FONTS is set to a vector of
2635 font_name structures allocated from the heap containing matching
2636 fonts. Each element of *FONTS contains a name member that is also
2637 allocated from the heap. Font names in these structures are split
2638 into fields. Use free_font_names to free such an array. */
2641 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2644 int (*cmpfn
) P_ ((const void *, const void *));
2645 struct font_name
**fonts
;
2649 /* Get the list of fonts matching pattern. 100 should suffice. */
2650 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2651 if (INTEGERP (Vfont_list_limit
))
2652 nfonts
= XINT (Vfont_list_limit
);
2655 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2657 /* Sort the resulting array and return it in *FONTS. If no
2658 fonts were found, make sure to set *FONTS to null. */
2660 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2671 /* Compare two font_name structures *A and *B. Value is analogous to
2672 strcmp. Sort order is given by the global variable
2673 font_sort_order. Font names are sorted so that, everything else
2674 being equal, fonts with a resolution closer to that of the frame on
2675 which they are used are listed first. The global variable
2676 font_frame is the frame on which we operate. */
2679 cmp_font_names (a
, b
)
2682 struct font_name
*x
= (struct font_name
*) a
;
2683 struct font_name
*y
= (struct font_name
*) b
;
2686 /* All strings have been converted to lower-case by split_font_name,
2687 so we can use strcmp here. */
2688 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2693 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2695 int j
= font_sort_order
[i
];
2696 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2701 /* Everything else being equal, we prefer fonts with an
2702 y-resolution closer to that of the frame. */
2703 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2704 int x_resy
= x
->numeric
[XLFD_RESY
];
2705 int y_resy
= y
->numeric
[XLFD_RESY
];
2706 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2714 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2715 is non-nil list fonts matching that pattern. Otherwise, if
2716 REGISTRY is non-nil return only fonts with that registry, otherwise
2717 return fonts of any registry. Set *FONTS to a vector of font_name
2718 structures allocated from the heap containing the fonts found.
2719 Value is the number of fonts found. */
2722 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2724 Lisp_Object pattern
, family
, registry
;
2725 struct font_name
**fonts
;
2727 char *pattern_str
, *family_str
, *registry_str
;
2731 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2732 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2734 pattern_str
= (char *) alloca (strlen (family_str
)
2735 + strlen (registry_str
)
2737 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2738 strcat (pattern_str
, family_str
);
2739 strcat (pattern_str
, "-*-");
2740 strcat (pattern_str
, registry_str
);
2741 if (!index (registry_str
, '-'))
2743 if (registry_str
[strlen (registry_str
) - 1] == '*')
2744 strcat (pattern_str
, "-*");
2746 strcat (pattern_str
, "*-*");
2750 pattern_str
= (char *) SDATA (pattern
);
2752 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2756 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2757 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2758 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2761 static struct font_name
*
2762 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2763 struct font_name
*fonts1
, *fonts2
;
2764 int nfonts1
, nfonts2
;
2766 int new_nfonts
= nfonts1
+ nfonts2
;
2767 struct font_name
*new_fonts
;
2769 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2770 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2771 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2778 /* Get a sorted list of fonts of family FAMILY on frame F.
2780 If PATTERN is non-nil list fonts matching that pattern.
2782 If REGISTRY is non-nil, return fonts with that registry and the
2783 alternative registries from Vface_alternative_font_registry_alist.
2785 If REGISTRY is nil return fonts of any registry.
2787 Set *FONTS to a vector of font_name structures allocated from the
2788 heap containing the fonts found. Value is the number of fonts
2792 font_list (f
, pattern
, family
, registry
, fonts
)
2794 Lisp_Object pattern
, family
, registry
;
2795 struct font_name
**fonts
;
2797 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2799 if (!NILP (registry
)
2800 && CONSP (Vface_alternative_font_registry_alist
))
2804 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2809 for (alter
= XCDR (alter
), reg_prio
= 1;
2811 alter
= XCDR (alter
), reg_prio
++)
2812 if (STRINGP (XCAR (alter
)))
2815 struct font_name
*fonts2
;
2817 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2819 for (i
= 0; i
< nfonts2
; i
++)
2820 fonts2
[i
].registry_priority
= reg_prio
;
2821 *fonts
= (nfonts
> 0
2822 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2833 /* Remove elements from LIST whose cars are `equal'. Called from
2834 x-family-fonts and x-font-family-list to remove duplicate font
2838 remove_duplicates (list
)
2841 Lisp_Object tail
= list
;
2843 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2845 Lisp_Object next
= XCDR (tail
);
2846 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2847 XSETCDR (tail
, XCDR (next
));
2854 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2855 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2856 If FAMILY is omitted or nil, list all families.
2857 Otherwise, FAMILY must be a string, possibly containing wildcards
2859 If FRAME is omitted or nil, use the selected frame.
2860 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2861 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2862 FAMILY is the font family name. POINT-SIZE is the size of the
2863 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2864 width, weight and slant of the font. These symbols are the same as for
2865 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2866 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2867 giving the registry and encoding of the font.
2868 The result list is sorted according to the current setting of
2869 the face font sort order. */)
2871 Lisp_Object family
, frame
;
2873 struct frame
*f
= check_x_frame (frame
);
2874 struct font_name
*fonts
;
2877 struct gcpro gcpro1
;
2880 CHECK_STRING (family
);
2884 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2885 for (i
= nfonts
- 1; i
>= 0; --i
)
2887 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2890 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2891 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2892 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2893 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2894 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2895 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2896 tem
= build_font_name (fonts
+ i
);
2897 ASET (v
, 6, build_string (tem
));
2898 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2899 fonts
[i
].fields
[XLFD_ENCODING
]);
2900 ASET (v
, 7, build_string (tem
));
2903 result
= Fcons (v
, result
);
2906 remove_duplicates (result
);
2907 free_font_names (fonts
, nfonts
);
2913 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2915 doc
: /* Return a list of available font families on FRAME.
2916 If FRAME is omitted or nil, use the selected frame.
2917 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2918 is a font family, and FIXED-P is non-nil if fonts of that family
2919 are fixed-pitch. */)
2923 struct frame
*f
= check_x_frame (frame
);
2925 struct font_name
*fonts
;
2927 struct gcpro gcpro1
;
2928 int count
= SPECPDL_INDEX ();
2930 /* Let's consider all fonts. */
2931 specbind (intern ("font-list-limit"), make_number (-1));
2932 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2936 for (i
= nfonts
- 1; i
>= 0; --i
)
2937 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2938 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2941 remove_duplicates (result
);
2942 free_font_names (fonts
, nfonts
);
2944 return unbind_to (count
, result
);
2948 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2949 doc
: /* Return a list of the names of available fonts matching PATTERN.
2950 If optional arguments FACE and FRAME are specified, return only fonts
2951 the same size as FACE on FRAME.
2952 PATTERN is a string, perhaps with wildcard characters;
2953 the * character matches any substring, and
2954 the ? character matches any single character.
2955 PATTERN is case-insensitive.
2956 FACE is a face name--a symbol.
2958 The return value is a list of strings, suitable as arguments to
2961 Fonts Emacs can't use may or may not be excluded
2962 even if they match PATTERN and FACE.
2963 The optional fourth argument MAXIMUM sets a limit on how many
2964 fonts to match. The first MAXIMUM fonts are reported.
2965 The optional fifth argument WIDTH, if specified, is a number of columns
2966 occupied by a character of a font. In that case, return only fonts
2967 the WIDTH times as wide as FACE on FRAME. */)
2968 (pattern
, face
, frame
, maximum
, width
)
2969 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2976 CHECK_STRING (pattern
);
2982 CHECK_NATNUM (maximum
);
2983 maxnames
= XINT (maximum
);
2987 CHECK_NUMBER (width
);
2989 /* We can't simply call check_x_frame because this function may be
2990 called before any frame is created. */
2991 f
= frame_or_selected_frame (frame
, 2);
2992 if (!FRAME_WINDOW_P (f
))
2994 /* Perhaps we have not yet created any frame. */
2999 /* Determine the width standard for comparison with the fonts we find. */
3005 /* This is of limited utility since it works with character
3006 widths. Keep it for compatibility. --gerd. */
3007 int face_id
= lookup_named_face (f
, face
, 0);
3008 struct face
*face
= (face_id
< 0
3010 : FACE_FROM_ID (f
, face_id
));
3013 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3014 not maximum as on X. Redefine here. */
3016 #define FONT_WIDTH FONT_MAX_WIDTH
3019 if (face
&& face
->font
)
3020 size
= FONT_WIDTH (face
->font
);
3022 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3025 size
*= XINT (width
);
3029 Lisp_Object args
[2];
3031 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3033 /* We don't have to check fontsets. */
3035 args
[1] = list_fontsets (f
, pattern
, size
);
3036 return Fnconc (2, args
);
3040 #endif /* HAVE_WINDOW_SYSTEM */
3044 /***********************************************************************
3046 ***********************************************************************/
3048 /* Access face attributes of face LFACE, a Lisp vector. */
3050 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3051 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3052 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3053 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3054 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3055 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3056 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3057 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3058 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3059 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3060 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3061 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3062 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3063 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3064 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3065 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3067 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3068 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3070 #define LFACEP(LFACE) \
3072 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3073 && EQ (AREF (LFACE, 0), Qface))
3078 /* Check consistency of Lisp face attribute vector ATTRS. */
3081 check_lface_attrs (attrs
)
3084 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3085 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3086 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3087 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3088 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3089 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3090 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3091 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3092 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3093 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3094 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3095 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3096 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3097 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3098 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3099 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3100 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3101 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3102 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3103 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3104 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3105 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3106 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3107 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3108 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3109 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3110 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3111 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3112 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3113 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3114 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3115 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3116 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3117 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3118 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3119 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3120 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3121 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3122 #ifdef HAVE_WINDOW_SYSTEM
3123 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3124 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3125 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3126 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3127 || NILP (attrs
[LFACE_FONT_INDEX
])
3128 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3133 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3141 xassert (LFACEP (lface
));
3142 check_lface_attrs (XVECTOR (lface
)->contents
);
3146 #else /* GLYPH_DEBUG == 0 */
3148 #define check_lface_attrs(attrs) (void) 0
3149 #define check_lface(lface) (void) 0
3151 #endif /* GLYPH_DEBUG == 0 */
3155 /* Face-merge cycle checking. */
3157 /* A `named merge point' is simply a point during face-merging where we
3158 look up a face by name. We keep a stack of which named lookups we're
3159 currently processing so that we can easily detect cycles, using a
3160 linked- list of struct named_merge_point structures, typically
3161 allocated on the stack frame of the named lookup functions which are
3162 active (so no consing is required). */
3163 struct named_merge_point
3165 Lisp_Object face_name
;
3166 struct named_merge_point
*prev
;
3170 /* If a face merging cycle is detected for FACE_NAME, return 0,
3171 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3172 FACE_NAME, as the head of the linked list pointed to by
3173 NAMED_MERGE_POINTS, and return 1. */
3176 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3177 Lisp_Object face_name
,
3178 struct named_merge_point
**named_merge_points
)
3180 struct named_merge_point
*prev
;
3182 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3183 if (EQ (face_name
, prev
->face_name
))
3186 new_named_merge_point
->face_name
= face_name
;
3187 new_named_merge_point
->prev
= *named_merge_points
;
3189 *named_merge_points
= new_named_merge_point
;
3197 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3198 to make it a symvol. If FACE_NAME is an alias for another face,
3199 return that face's name. */
3202 resolve_face_name (face_name
)
3203 Lisp_Object face_name
;
3205 Lisp_Object aliased
;
3207 if (STRINGP (face_name
))
3208 face_name
= intern (SDATA (face_name
));
3210 while (SYMBOLP (face_name
))
3212 aliased
= Fget (face_name
, Qface_alias
);
3216 face_name
= aliased
;
3223 /* Return the face definition of FACE_NAME on frame F. F null means
3224 return the definition for new frames. FACE_NAME may be a string or
3225 a symbol (apparently Emacs 20.2 allowed strings as face names in
3226 face text properties; Ediff uses that). If FACE_NAME is an alias
3227 for another face, return that face's definition. If SIGNAL_P is
3228 non-zero, signal an error if FACE_NAME is not a valid face name.
3229 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3232 static INLINE Lisp_Object
3233 lface_from_face_name (f
, face_name
, signal_p
)
3235 Lisp_Object face_name
;
3240 face_name
= resolve_face_name (face_name
);
3243 lface
= assq_no_quit (face_name
, f
->face_alist
);
3245 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3248 lface
= XCDR (lface
);
3250 signal_error ("Invalid face", face_name
);
3252 check_lface (lface
);
3257 /* Get face attributes of face FACE_NAME from frame-local faces on
3258 frame F. Store the resulting attributes in ATTRS which must point
3259 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3260 is non-zero, signal an error if FACE_NAME does not name a face.
3261 Otherwise, value is zero if FACE_NAME is not a face. */
3264 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3266 Lisp_Object face_name
;
3273 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3276 bcopy (XVECTOR (lface
)->contents
, attrs
,
3277 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3287 /* Non-zero if all attributes in face attribute vector ATTRS are
3288 specified, i.e. are non-nil. */
3291 lface_fully_specified_p (attrs
)
3296 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3297 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3298 && i
!= LFACE_AVGWIDTH_INDEX
)
3299 if (UNSPECIFIEDP (attrs
[i
])
3301 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3302 always unspecified. */
3303 && i
!= LFACE_STIPPLE_INDEX
3308 return i
== LFACE_VECTOR_SIZE
;
3311 #ifdef HAVE_WINDOW_SYSTEM
3313 /* Set font-related attributes of Lisp face LFACE from the fullname of
3314 the font opened by FONTNAME. If FORCE_P is zero, set only
3315 unspecified attributes of LFACE. The exception is `font'
3316 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3318 If FONTNAME is not available on frame F,
3319 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3320 If the fullname is not in a valid XLFD format,
3321 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3322 in LFACE and return 1.
3323 Otherwise, return 1. */
3326 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3329 Lisp_Object fontname
;
3330 int force_p
, may_fail_p
;
3332 struct font_name font
;
3337 char *font_name
= SDATA (fontname
);
3338 struct font_info
*font_info
;
3340 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3341 fontset
= fs_query_fontset (fontname
, 0);
3343 font_name
= SDATA (fontset_ascii (fontset
));
3345 /* Check if FONT_NAME is surely available on the system. Usually
3346 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3347 returns quickly. But, even if FONT_NAME is not yet cached,
3348 caching it now is not futail because we anyway load the font
3351 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3361 font
.name
= STRDUPA (font_info
->full_name
);
3362 have_xlfd_p
= split_font_name (f
, &font
, 1);
3364 /* Set attributes only if unspecified, otherwise face defaults for
3365 new frames would never take effect. If we couldn't get a font
3366 name conforming to XLFD, set normal values. */
3368 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3373 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3374 + strlen (font
.fields
[XLFD_FOUNDRY
])
3376 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3377 font
.fields
[XLFD_FAMILY
]);
3378 val
= build_string (buffer
);
3381 val
= build_string ("*");
3382 LFACE_FAMILY (lface
) = val
;
3385 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3388 pt
= xlfd_point_size (f
, &font
);
3390 pt
= pixel_point_size (f
, font_info
->height
* 10);
3392 LFACE_HEIGHT (lface
) = make_number (pt
);
3395 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3396 LFACE_SWIDTH (lface
)
3397 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3399 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3400 LFACE_AVGWIDTH (lface
)
3402 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3405 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3406 LFACE_WEIGHT (lface
)
3407 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3409 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3411 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3413 LFACE_FONT (lface
) = fontname
;
3418 #endif /* HAVE_WINDOW_SYSTEM */
3421 /* Merges the face height FROM with the face height TO, and returns the
3422 merged height. If FROM is an invalid height, then INVALID is
3423 returned instead. FROM and TO may be either absolute face heights or
3424 `relative' heights; the returned value is always an absolute height
3425 unless both FROM and TO are relative. GCPRO is a lisp value that
3426 will be protected from garbage-collection if this function makes a
3430 merge_face_heights (from
, to
, invalid
, gcpro
)
3431 Lisp_Object from
, to
, invalid
, gcpro
;
3433 Lisp_Object result
= invalid
;
3435 if (INTEGERP (from
))
3436 /* FROM is absolute, just use it as is. */
3438 else if (FLOATP (from
))
3439 /* FROM is a scale, use it to adjust TO. */
3442 /* relative X absolute => absolute */
3443 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3444 else if (FLOATP (to
))
3445 /* relative X relative => relative */
3446 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3447 else if (UNSPECIFIEDP (to
))
3450 else if (FUNCTIONP (from
))
3451 /* FROM is a function, which use to adjust TO. */
3453 /* Call function with current height as argument.
3454 From is the new height. */
3455 Lisp_Object args
[2];
3456 struct gcpro gcpro1
;
3462 result
= safe_call (2, args
);
3466 /* Ensure that if TO was absolute, so is the result. */
3467 if (INTEGERP (to
) && !INTEGERP (result
))
3475 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3476 store the resulting attributes in TO, which must be already be
3477 completely specified and contain only absolute attributes. Every
3478 specified attribute of FROM overrides the corresponding attribute of
3479 TO; relative attributes in FROM are merged with the absolute value in
3480 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3481 loops in face inheritance; it should be 0 when called from other
3485 merge_face_vectors (f
, from
, to
, named_merge_points
)
3487 Lisp_Object
*from
, *to
;
3488 struct named_merge_point
*named_merge_points
;
3492 /* If FROM inherits from some other faces, merge their attributes into
3493 TO before merging FROM's direct attributes. Note that an :inherit
3494 attribute of `unspecified' is the same as one of nil; we never
3495 merge :inherit attributes, so nil is more correct, but lots of
3496 other code uses `unspecified' as a generic value for face attributes. */
3497 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3498 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3499 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3501 /* If TO specifies a :font attribute, and FROM specifies some
3502 font-related attribute, we need to clear TO's :font attribute
3503 (because it will be inconsistent with whatever FROM specifies, and
3504 FROM takes precedence). */
3505 if (!NILP (to
[LFACE_FONT_INDEX
])
3506 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3507 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3508 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3509 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3510 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3511 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3512 to
[LFACE_FONT_INDEX
] = Qnil
;
3514 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3515 if (!UNSPECIFIEDP (from
[i
]))
3517 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3518 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
],
3519 named_merge_points
);
3524 /* TO is always an absolute face, which should inherit from nothing.
3525 We blindly copy the :inherit attribute above and fix it up here. */
3526 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3529 /* Merge the named face FACE_NAME on frame F, into the vector of face
3530 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3531 inheritance. Returns true if FACE_NAME is a valid face name and
3532 merging succeeded. */
3535 merge_named_face (f
, face_name
, to
, named_merge_points
)
3537 Lisp_Object face_name
;
3539 struct named_merge_point
*named_merge_points
;
3541 struct named_merge_point named_merge_point
;
3543 if (push_named_merge_point (&named_merge_point
,
3544 face_name
, &named_merge_points
))
3546 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3547 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3550 merge_face_vectors (f
, from
, to
, named_merge_points
);
3559 /* Merge face attributes from the lisp `face reference' FACE_REF on
3560 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3561 problems with FACE_REF cause an error message to be shown. Return
3562 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3563 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3564 list structure; it may be 0 for most callers.
3566 FACE_REF may be a single face specification or a list of such
3567 specifications. Each face specification can be:
3569 1. A symbol or string naming a Lisp face.
3571 2. A property list of the form (KEYWORD VALUE ...) where each
3572 KEYWORD is a face attribute name, and value is an appropriate value
3575 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3576 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3577 for compatibility with 20.2.
3579 Face specifications earlier in lists take precedence over later
3583 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3585 Lisp_Object face_ref
;
3588 struct named_merge_point
*named_merge_points
;
3590 int ok
= 1; /* Succeed without an error? */
3592 if (CONSP (face_ref
))
3594 Lisp_Object first
= XCAR (face_ref
);
3596 if (EQ (first
, Qforeground_color
)
3597 || EQ (first
, Qbackground_color
))
3599 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3600 . COLOR). COLOR must be a string. */
3601 Lisp_Object color_name
= XCDR (face_ref
);
3602 Lisp_Object color
= first
;
3604 if (STRINGP (color_name
))
3606 if (EQ (color
, Qforeground_color
))
3607 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3609 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3614 add_to_log ("Invalid face color", color_name
, Qnil
);
3618 else if (SYMBOLP (first
)
3619 && *SDATA (SYMBOL_NAME (first
)) == ':')
3621 /* Assume this is the property list form. */
3622 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3624 Lisp_Object keyword
= XCAR (face_ref
);
3625 Lisp_Object value
= XCAR (XCDR (face_ref
));
3628 if (EQ (keyword
, QCfamily
))
3630 if (STRINGP (value
))
3631 to
[LFACE_FAMILY_INDEX
] = value
;
3635 else if (EQ (keyword
, QCheight
))
3637 Lisp_Object new_height
=
3638 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3641 if (! NILP (new_height
))
3642 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3646 else if (EQ (keyword
, QCweight
))
3649 && face_numeric_weight (value
) >= 0)
3650 to
[LFACE_WEIGHT_INDEX
] = value
;
3654 else if (EQ (keyword
, QCslant
))
3657 && face_numeric_slant (value
) >= 0)
3658 to
[LFACE_SLANT_INDEX
] = value
;
3662 else if (EQ (keyword
, QCunderline
))
3667 to
[LFACE_UNDERLINE_INDEX
] = value
;
3671 else if (EQ (keyword
, QCoverline
))
3676 to
[LFACE_OVERLINE_INDEX
] = value
;
3680 else if (EQ (keyword
, QCstrike_through
))
3685 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3689 else if (EQ (keyword
, QCbox
))
3692 value
= make_number (1);
3693 if (INTEGERP (value
)
3697 to
[LFACE_BOX_INDEX
] = value
;
3701 else if (EQ (keyword
, QCinverse_video
)
3702 || EQ (keyword
, QCreverse_video
))
3704 if (EQ (value
, Qt
) || NILP (value
))
3705 to
[LFACE_INVERSE_INDEX
] = value
;
3709 else if (EQ (keyword
, QCforeground
))
3711 if (STRINGP (value
))
3712 to
[LFACE_FOREGROUND_INDEX
] = value
;
3716 else if (EQ (keyword
, QCbackground
))
3718 if (STRINGP (value
))
3719 to
[LFACE_BACKGROUND_INDEX
] = value
;
3723 else if (EQ (keyword
, QCstipple
))
3725 #ifdef HAVE_X_WINDOWS
3726 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3727 if (!NILP (pixmap_p
))
3728 to
[LFACE_STIPPLE_INDEX
] = value
;
3733 else if (EQ (keyword
, QCwidth
))
3736 && face_numeric_swidth (value
) >= 0)
3737 to
[LFACE_SWIDTH_INDEX
] = value
;
3741 else if (EQ (keyword
, QCinherit
))
3743 /* This is not really very useful; it's just like a
3744 normal face reference. */
3745 if (! merge_face_ref (f
, value
, to
,
3746 err_msgs
, named_merge_points
))
3754 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
3758 face_ref
= XCDR (XCDR (face_ref
));
3763 /* This is a list of face refs. Those at the beginning of the
3764 list take precedence over what follows, so we have to merge
3765 from the end backwards. */
3766 Lisp_Object next
= XCDR (face_ref
);
3769 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
3771 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
3777 /* FACE_REF ought to be a face name. */
3778 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
3779 if (!ok
&& err_msgs
)
3780 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
3787 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3788 Sinternal_make_lisp_face
, 1, 2, 0,
3789 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3790 If FACE was not known as a face before, create a new one.
3791 If optional argument FRAME is specified, make a frame-local face
3792 for that frame. Otherwise operate on the global face definition.
3793 Value is a vector of face attributes. */)
3795 Lisp_Object face
, frame
;
3797 Lisp_Object global_lface
, lface
;
3801 CHECK_SYMBOL (face
);
3802 global_lface
= lface_from_face_name (NULL
, face
, 0);
3806 CHECK_LIVE_FRAME (frame
);
3808 lface
= lface_from_face_name (f
, face
, 0);
3811 f
= NULL
, lface
= Qnil
;
3813 /* Add a global definition if there is none. */
3814 if (NILP (global_lface
))
3816 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3818 AREF (global_lface
, 0) = Qface
;
3819 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3820 Vface_new_frame_defaults
);
3822 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3823 face id to Lisp face is given by the vector lface_id_to_name.
3824 The mapping from Lisp face to Lisp face id is given by the
3825 property `face' of the Lisp face name. */
3826 if (next_lface_id
== lface_id_to_name_size
)
3828 int new_size
= max (50, 2 * lface_id_to_name_size
);
3829 int sz
= new_size
* sizeof *lface_id_to_name
;
3830 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3831 lface_id_to_name_size
= new_size
;
3834 lface_id_to_name
[next_lface_id
] = face
;
3835 Fput (face
, Qface
, make_number (next_lface_id
));
3839 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3840 AREF (global_lface
, i
) = Qunspecified
;
3842 /* Add a frame-local definition. */
3847 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3849 AREF (lface
, 0) = Qface
;
3850 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3853 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3854 AREF (lface
, i
) = Qunspecified
;
3857 lface
= global_lface
;
3859 /* Changing a named face means that all realized faces depending on
3860 that face are invalid. Since we cannot tell which realized faces
3861 depend on the face, make sure they are all removed. This is done
3862 by incrementing face_change_count. The next call to
3863 init_iterator will then free realized faces. */
3864 ++face_change_count
;
3865 ++windows_or_buffers_changed
;
3867 xassert (LFACEP (lface
));
3868 check_lface (lface
);
3873 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3874 Sinternal_lisp_face_p
, 1, 2, 0,
3875 doc
: /* Return non-nil if FACE names a face.
3876 If optional second parameter FRAME is non-nil, check for the
3877 existence of a frame-local face with name FACE on that frame.
3878 Otherwise check for the existence of a global face. */)
3880 Lisp_Object face
, frame
;
3886 CHECK_LIVE_FRAME (frame
);
3887 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3890 lface
= lface_from_face_name (NULL
, face
, 0);
3896 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3897 Sinternal_copy_lisp_face
, 4, 4, 0,
3898 doc
: /* Copy face FROM to TO.
3899 If FRAME is t, copy the global face definition of FROM.
3900 Otherwise, copy the frame-local definition of FROM on FRAME.
3901 If NEW-FRAME is a frame, copy that data into the frame-local
3902 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
3903 FRAME controls where the data is copied to.
3905 The value is TO. */)
3906 (from
, to
, frame
, new_frame
)
3907 Lisp_Object from
, to
, frame
, new_frame
;
3909 Lisp_Object lface
, copy
;
3911 CHECK_SYMBOL (from
);
3916 /* Copy global definition of FROM. We don't make copies of
3917 strings etc. because 20.2 didn't do it either. */
3918 lface
= lface_from_face_name (NULL
, from
, 1);
3919 copy
= Finternal_make_lisp_face (to
, Qnil
);
3923 /* Copy frame-local definition of FROM. */
3924 if (NILP (new_frame
))
3926 CHECK_LIVE_FRAME (frame
);
3927 CHECK_LIVE_FRAME (new_frame
);
3928 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3929 copy
= Finternal_make_lisp_face (to
, new_frame
);
3932 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3933 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3935 /* Changing a named face means that all realized faces depending on
3936 that face are invalid. Since we cannot tell which realized faces
3937 depend on the face, make sure they are all removed. This is done
3938 by incrementing face_change_count. The next call to
3939 init_iterator will then free realized faces. */
3940 ++face_change_count
;
3941 ++windows_or_buffers_changed
;
3947 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3948 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3949 doc
: /* Set attribute ATTR of FACE to VALUE.
3950 FRAME being a frame means change the face on that frame.
3951 FRAME nil means change the face of the selected frame.
3952 FRAME t means change the default for new frames.
3953 FRAME 0 means change the face on all frames, and change the default
3955 (face
, attr
, value
, frame
)
3956 Lisp_Object face
, attr
, value
, frame
;
3959 Lisp_Object old_value
= Qnil
;
3960 /* Set 1 if ATTR is QCfont. */
3961 int font_attr_p
= 0;
3962 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3963 int font_related_attr_p
= 0;
3965 CHECK_SYMBOL (face
);
3966 CHECK_SYMBOL (attr
);
3968 face
= resolve_face_name (face
);
3970 /* If FRAME is 0, change face on all frames, and change the
3971 default for new frames. */
3972 if (INTEGERP (frame
) && XINT (frame
) == 0)
3975 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3976 FOR_EACH_FRAME (tail
, frame
)
3977 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3981 /* Set lface to the Lisp attribute vector of FACE. */
3983 lface
= lface_from_face_name (NULL
, face
, 1);
3987 frame
= selected_frame
;
3989 CHECK_LIVE_FRAME (frame
);
3990 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3992 /* If a frame-local face doesn't exist yet, create one. */
3994 lface
= Finternal_make_lisp_face (face
, frame
);
3997 if (EQ (attr
, QCfamily
))
3999 if (!UNSPECIFIEDP (value
))
4001 CHECK_STRING (value
);
4002 if (SCHARS (value
) == 0)
4003 signal_error ("Invalid face family", value
);
4005 old_value
= LFACE_FAMILY (lface
);
4006 LFACE_FAMILY (lface
) = value
;
4007 font_related_attr_p
= 1;
4009 else if (EQ (attr
, QCheight
))
4011 if (!UNSPECIFIEDP (value
))
4015 test
= (EQ (face
, Qdefault
)
4017 /* The default face must have an absolute size,
4018 otherwise, we do a test merge with a random
4019 height to see if VALUE's ok. */
4020 : merge_face_heights (value
, make_number (10), Qnil
, Qnil
));
4022 if (!INTEGERP (test
) || XINT (test
) <= 0)
4023 signal_error ("Invalid face height", value
);
4026 old_value
= LFACE_HEIGHT (lface
);
4027 LFACE_HEIGHT (lface
) = value
;
4028 font_related_attr_p
= 1;
4030 else if (EQ (attr
, QCweight
))
4032 if (!UNSPECIFIEDP (value
))
4034 CHECK_SYMBOL (value
);
4035 if (face_numeric_weight (value
) < 0)
4036 signal_error ("Invalid face weight", value
);
4038 old_value
= LFACE_WEIGHT (lface
);
4039 LFACE_WEIGHT (lface
) = value
;
4040 font_related_attr_p
= 1;
4042 else if (EQ (attr
, QCslant
))
4044 if (!UNSPECIFIEDP (value
))
4046 CHECK_SYMBOL (value
);
4047 if (face_numeric_slant (value
) < 0)
4048 signal_error ("Invalid face slant", value
);
4050 old_value
= LFACE_SLANT (lface
);
4051 LFACE_SLANT (lface
) = value
;
4052 font_related_attr_p
= 1;
4054 else if (EQ (attr
, QCunderline
))
4056 if (!UNSPECIFIEDP (value
))
4057 if ((SYMBOLP (value
)
4059 && !EQ (value
, Qnil
))
4060 /* Underline color. */
4062 && SCHARS (value
) == 0))
4063 signal_error ("Invalid face underline", value
);
4065 old_value
= LFACE_UNDERLINE (lface
);
4066 LFACE_UNDERLINE (lface
) = value
;
4068 else if (EQ (attr
, QCoverline
))
4070 if (!UNSPECIFIEDP (value
))
4071 if ((SYMBOLP (value
)
4073 && !EQ (value
, Qnil
))
4074 /* Overline color. */
4076 && SCHARS (value
) == 0))
4077 signal_error ("Invalid face overline", value
);
4079 old_value
= LFACE_OVERLINE (lface
);
4080 LFACE_OVERLINE (lface
) = value
;
4082 else if (EQ (attr
, QCstrike_through
))
4084 if (!UNSPECIFIEDP (value
))
4085 if ((SYMBOLP (value
)
4087 && !EQ (value
, Qnil
))
4088 /* Strike-through color. */
4090 && SCHARS (value
) == 0))
4091 signal_error ("Invalid face strike-through", value
);
4093 old_value
= LFACE_STRIKE_THROUGH (lface
);
4094 LFACE_STRIKE_THROUGH (lface
) = value
;
4096 else if (EQ (attr
, QCbox
))
4100 /* Allow t meaning a simple box of width 1 in foreground color
4103 value
= make_number (1);
4105 if (UNSPECIFIEDP (value
))
4107 else if (NILP (value
))
4109 else if (INTEGERP (value
))
4110 valid_p
= XINT (value
) != 0;
4111 else if (STRINGP (value
))
4112 valid_p
= SCHARS (value
) > 0;
4113 else if (CONSP (value
))
4129 if (EQ (k
, QCline_width
))
4131 if (!INTEGERP (v
) || XINT (v
) == 0)
4134 else if (EQ (k
, QCcolor
))
4136 if (!STRINGP (v
) || SCHARS (v
) == 0)
4139 else if (EQ (k
, QCstyle
))
4141 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4148 valid_p
= NILP (tem
);
4154 signal_error ("Invalid face box", value
);
4156 old_value
= LFACE_BOX (lface
);
4157 LFACE_BOX (lface
) = value
;
4159 else if (EQ (attr
, QCinverse_video
)
4160 || EQ (attr
, QCreverse_video
))
4162 if (!UNSPECIFIEDP (value
))
4164 CHECK_SYMBOL (value
);
4165 if (!EQ (value
, Qt
) && !NILP (value
))
4166 signal_error ("Invalid inverse-video face attribute value", value
);
4168 old_value
= LFACE_INVERSE (lface
);
4169 LFACE_INVERSE (lface
) = value
;
4171 else if (EQ (attr
, QCforeground
))
4173 if (!UNSPECIFIEDP (value
))
4175 /* Don't check for valid color names here because it depends
4176 on the frame (display) whether the color will be valid
4177 when the face is realized. */
4178 CHECK_STRING (value
);
4179 if (SCHARS (value
) == 0)
4180 signal_error ("Empty foreground color value", value
);
4182 old_value
= LFACE_FOREGROUND (lface
);
4183 LFACE_FOREGROUND (lface
) = value
;
4185 else if (EQ (attr
, QCbackground
))
4187 if (!UNSPECIFIEDP (value
))
4189 /* Don't check for valid color names here because it depends
4190 on the frame (display) whether the color will be valid
4191 when the face is realized. */
4192 CHECK_STRING (value
);
4193 if (SCHARS (value
) == 0)
4194 signal_error ("Empty background color value", value
);
4196 old_value
= LFACE_BACKGROUND (lface
);
4197 LFACE_BACKGROUND (lface
) = value
;
4199 else if (EQ (attr
, QCstipple
))
4201 #ifdef HAVE_X_WINDOWS
4202 if (!UNSPECIFIEDP (value
)
4204 && NILP (Fbitmap_spec_p (value
)))
4205 signal_error ("Invalid stipple attribute", value
);
4206 old_value
= LFACE_STIPPLE (lface
);
4207 LFACE_STIPPLE (lface
) = value
;
4208 #endif /* HAVE_X_WINDOWS */
4210 else if (EQ (attr
, QCwidth
))
4212 if (!UNSPECIFIEDP (value
))
4214 CHECK_SYMBOL (value
);
4215 if (face_numeric_swidth (value
) < 0)
4216 signal_error ("Invalid face width", value
);
4218 old_value
= LFACE_SWIDTH (lface
);
4219 LFACE_SWIDTH (lface
) = value
;
4220 font_related_attr_p
= 1;
4222 else if (EQ (attr
, QCfont
))
4224 #ifdef HAVE_WINDOW_SYSTEM
4225 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4227 /* Set font-related attributes of the Lisp face from an XLFD
4233 f
= SELECTED_FRAME ();
4235 f
= check_x_frame (frame
);
4237 if (!UNSPECIFIEDP (value
))
4239 CHECK_STRING (value
);
4241 /* VALUE may be a fontset name or an alias of fontset. In
4242 such a case, use the base fontset name. */
4243 tmp
= Fquery_fontset (value
, Qnil
);
4247 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4248 signal_error ("Invalid font or fontset name", value
);
4253 #endif /* HAVE_WINDOW_SYSTEM */
4255 else if (EQ (attr
, QCinherit
))
4258 if (SYMBOLP (value
))
4261 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4262 if (!SYMBOLP (XCAR (tail
)))
4265 LFACE_INHERIT (lface
) = value
;
4267 signal_error ("Invalid face inheritance", value
);
4269 else if (EQ (attr
, QCbold
))
4271 old_value
= LFACE_WEIGHT (lface
);
4272 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4273 font_related_attr_p
= 1;
4275 else if (EQ (attr
, QCitalic
))
4277 old_value
= LFACE_SLANT (lface
);
4278 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4279 font_related_attr_p
= 1;
4282 signal_error ("Invalid face attribute name", attr
);
4284 if (font_related_attr_p
4285 && !UNSPECIFIEDP (value
))
4286 /* If a font-related attribute other than QCfont is specified, the
4287 original `font' attribute nor that of default face is useless
4288 to determine a new font. Thus, we set it to nil so that font
4289 selection mechanism doesn't use it. */
4290 LFACE_FONT (lface
) = Qnil
;
4292 /* Changing a named face means that all realized faces depending on
4293 that face are invalid. Since we cannot tell which realized faces
4294 depend on the face, make sure they are all removed. This is done
4295 by incrementing face_change_count. The next call to
4296 init_iterator will then free realized faces. */
4298 && (EQ (attr
, QCfont
)
4299 || NILP (Fequal (old_value
, value
))))
4301 ++face_change_count
;
4302 ++windows_or_buffers_changed
;
4305 if (!UNSPECIFIEDP (value
)
4306 && NILP (Fequal (old_value
, value
)))
4312 if (EQ (face
, Qdefault
))
4314 #ifdef HAVE_WINDOW_SYSTEM
4315 /* Changed font-related attributes of the `default' face are
4316 reflected in changed `font' frame parameters. */
4318 && (font_related_attr_p
|| font_attr_p
)
4319 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4320 set_font_frame_param (frame
, lface
);
4322 #endif /* HAVE_WINDOW_SYSTEM */
4324 if (EQ (attr
, QCforeground
))
4325 param
= Qforeground_color
;
4326 else if (EQ (attr
, QCbackground
))
4327 param
= Qbackground_color
;
4329 #ifdef HAVE_WINDOW_SYSTEM
4331 else if (EQ (face
, Qscroll_bar
))
4333 /* Changing the colors of `scroll-bar' sets frame parameters
4334 `scroll-bar-foreground' and `scroll-bar-background'. */
4335 if (EQ (attr
, QCforeground
))
4336 param
= Qscroll_bar_foreground
;
4337 else if (EQ (attr
, QCbackground
))
4338 param
= Qscroll_bar_background
;
4340 #endif /* not WINDOWSNT */
4341 else if (EQ (face
, Qborder
))
4343 /* Changing background color of `border' sets frame parameter
4345 if (EQ (attr
, QCbackground
))
4346 param
= Qborder_color
;
4348 else if (EQ (face
, Qcursor
))
4350 /* Changing background color of `cursor' sets frame parameter
4352 if (EQ (attr
, QCbackground
))
4353 param
= Qcursor_color
;
4355 else if (EQ (face
, Qmouse
))
4357 /* Changing background color of `mouse' sets frame parameter
4359 if (EQ (attr
, QCbackground
))
4360 param
= Qmouse_color
;
4362 #endif /* HAVE_WINDOW_SYSTEM */
4363 else if (EQ (face
, Qmenu
))
4365 /* Indicate that we have to update the menu bar when
4366 realizing faces on FRAME. FRAME t change the
4367 default for new frames. We do this by setting
4368 setting the flag in new face caches */
4371 struct frame
*f
= XFRAME (frame
);
4372 if (FRAME_FACE_CACHE (f
) == NULL
)
4373 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4374 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4377 menu_face_changed_default
= 1;
4383 /* Update `default-frame-alist', which is used for new frames. */
4385 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4388 /* Update the current frame's parameters. */
4391 cons
= XCAR (Vparam_value_alist
);
4392 XSETCAR (cons
, param
);
4393 XSETCDR (cons
, value
);
4394 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4403 #ifdef HAVE_WINDOW_SYSTEM
4405 /* Set the `font' frame parameter of FRAME determined from `default'
4406 face attributes LFACE. If a face or fontset name is explicitely
4407 specfied in LFACE, use it as is. Otherwise, determine a font name
4408 from the other font-related atrributes of LFACE. In that case, if
4409 there's no matching font, signals an error. */
4412 set_font_frame_param (frame
, lface
)
4413 Lisp_Object frame
, lface
;
4415 struct frame
*f
= XFRAME (frame
);
4417 if (FRAME_WINDOW_P (f
))
4419 Lisp_Object font_name
;
4422 if (STRINGP (LFACE_FONT (lface
)))
4423 font_name
= LFACE_FONT (lface
);
4426 /* Choose a font name that reflects LFACE's attributes and has
4427 the registry and encoding pattern specified in the default
4428 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4429 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4431 error ("No font matches the specified attribute");
4432 font_name
= build_string (font
);
4436 f
->default_face_done_p
= 0;
4437 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4442 /* Update the corresponding face when frame parameter PARAM on frame F
4443 has been assigned the value NEW_VALUE. */
4446 update_face_from_frame_parameter (f
, param
, new_value
)
4448 Lisp_Object param
, new_value
;
4452 /* If there are no faces yet, give up. This is the case when called
4453 from Fx_create_frame, and we do the necessary things later in
4454 face-set-after-frame-defaults. */
4455 if (NILP (f
->face_alist
))
4458 /* Changing a named face means that all realized faces depending on
4459 that face are invalid. Since we cannot tell which realized faces
4460 depend on the face, make sure they are all removed. This is done
4461 by incrementing face_change_count. The next call to
4462 init_iterator will then free realized faces. */
4463 ++face_change_count
;
4464 ++windows_or_buffers_changed
;
4466 if (EQ (param
, Qforeground_color
))
4468 lface
= lface_from_face_name (f
, Qdefault
, 1);
4469 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4470 ? new_value
: Qunspecified
);
4471 realize_basic_faces (f
);
4473 else if (EQ (param
, Qbackground_color
))
4477 /* Changing the background color might change the background
4478 mode, so that we have to load new defface specs. Call
4479 frame-update-face-colors to do that. */
4480 XSETFRAME (frame
, f
);
4481 call1 (Qframe_update_face_colors
, frame
);
4483 lface
= lface_from_face_name (f
, Qdefault
, 1);
4484 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4485 ? new_value
: Qunspecified
);
4486 realize_basic_faces (f
);
4488 if (EQ (param
, Qborder_color
))
4490 lface
= lface_from_face_name (f
, Qborder
, 1);
4491 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4492 ? new_value
: Qunspecified
);
4494 else if (EQ (param
, Qcursor_color
))
4496 lface
= lface_from_face_name (f
, Qcursor
, 1);
4497 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4498 ? new_value
: Qunspecified
);
4500 else if (EQ (param
, Qmouse_color
))
4502 lface
= lface_from_face_name (f
, Qmouse
, 1);
4503 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4504 ? new_value
: Qunspecified
);
4509 /* Get the value of X resource RESOURCE, class CLASS for the display
4510 of frame FRAME. This is here because ordinary `x-get-resource'
4511 doesn't take a frame argument. */
4513 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4514 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4515 (resource
, class, frame
)
4516 Lisp_Object resource
, class, frame
;
4518 Lisp_Object value
= Qnil
;
4519 CHECK_STRING (resource
);
4520 CHECK_STRING (class);
4521 CHECK_LIVE_FRAME (frame
);
4523 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4524 resource
, class, Qnil
, Qnil
);
4530 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4531 If VALUE is "on" or "true", return t. If VALUE is "off" or
4532 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4533 error; if SIGNAL_P is zero, return 0. */
4536 face_boolean_x_resource_value (value
, signal_p
)
4540 Lisp_Object result
= make_number (0);
4542 xassert (STRINGP (value
));
4544 if (xstricmp (SDATA (value
), "on") == 0
4545 || xstricmp (SDATA (value
), "true") == 0)
4547 else if (xstricmp (SDATA (value
), "off") == 0
4548 || xstricmp (SDATA (value
), "false") == 0)
4550 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4551 result
= Qunspecified
;
4553 signal_error ("Invalid face attribute value from X resource", value
);
4559 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4560 Finternal_set_lisp_face_attribute_from_resource
,
4561 Sinternal_set_lisp_face_attribute_from_resource
,
4562 3, 4, 0, doc
: /* */)
4563 (face
, attr
, value
, frame
)
4564 Lisp_Object face
, attr
, value
, frame
;
4566 CHECK_SYMBOL (face
);
4567 CHECK_SYMBOL (attr
);
4568 CHECK_STRING (value
);
4570 if (xstricmp (SDATA (value
), "unspecified") == 0)
4571 value
= Qunspecified
;
4572 else if (EQ (attr
, QCheight
))
4574 value
= Fstring_to_number (value
, make_number (10));
4575 if (XINT (value
) <= 0)
4576 signal_error ("Invalid face height from X resource", value
);
4578 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4579 value
= face_boolean_x_resource_value (value
, 1);
4580 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4581 value
= intern (SDATA (value
));
4582 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4583 value
= face_boolean_x_resource_value (value
, 1);
4584 else if (EQ (attr
, QCunderline
)
4585 || EQ (attr
, QCoverline
)
4586 || EQ (attr
, QCstrike_through
))
4588 Lisp_Object boolean_value
;
4590 /* If the result of face_boolean_x_resource_value is t or nil,
4591 VALUE does NOT specify a color. */
4592 boolean_value
= face_boolean_x_resource_value (value
, 0);
4593 if (SYMBOLP (boolean_value
))
4594 value
= boolean_value
;
4596 else if (EQ (attr
, QCbox
))
4597 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4599 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4602 #endif /* HAVE_WINDOW_SYSTEM */
4605 /***********************************************************************
4607 ***********************************************************************/
4609 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4611 /* Make menus on frame F appear as specified by the `menu' face. */
4614 x_update_menu_appearance (f
)
4617 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4621 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4625 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4626 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4627 const char *myname
= SDATA (Vx_resource_name
);
4630 const char *popup_path
= "popup_menu";
4632 const char *popup_path
= "menu.popup";
4635 if (STRINGP (LFACE_FOREGROUND (lface
)))
4637 sprintf (line
, "%s.%s*foreground: %s",
4639 SDATA (LFACE_FOREGROUND (lface
)));
4640 XrmPutLineResource (&rdb
, line
);
4641 sprintf (line
, "%s.pane.menubar*foreground: %s",
4642 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4643 XrmPutLineResource (&rdb
, line
);
4647 if (STRINGP (LFACE_BACKGROUND (lface
)))
4649 sprintf (line
, "%s.%s*background: %s",
4651 SDATA (LFACE_BACKGROUND (lface
)));
4652 XrmPutLineResource (&rdb
, line
);
4653 sprintf (line
, "%s.pane.menubar*background: %s",
4654 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4655 XrmPutLineResource (&rdb
, line
);
4660 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4661 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4662 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4663 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4664 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4665 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4668 const char *suffix
= "List";
4670 const char *suffix
= "";
4672 sprintf (line
, "%s.pane.menubar*font%s: %s",
4673 myname
, suffix
, face
->font_name
);
4674 XrmPutLineResource (&rdb
, line
);
4675 sprintf (line
, "%s.%s*font%s: %s",
4676 myname
, popup_path
, suffix
, face
->font_name
);
4677 XrmPutLineResource (&rdb
, line
);
4681 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4682 free_frame_menubar (f
);
4686 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4689 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4690 Sface_attribute_relative_p
,
4692 doc
: /* Return non-nil if face ATTRIBUTE VALUE is relative. */)
4694 Lisp_Object attribute
, value
;
4696 if (EQ (value
, Qunspecified
))
4698 else if (EQ (attribute
, QCheight
))
4699 return INTEGERP (value
) ? Qnil
: Qt
;
4704 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4706 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4707 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4708 the result will be absolute, otherwise it will be relative. */)
4709 (attribute
, value1
, value2
)
4710 Lisp_Object attribute
, value1
, value2
;
4712 if (EQ (value1
, Qunspecified
))
4714 else if (EQ (attribute
, QCheight
))
4715 return merge_face_heights (value1
, value2
, value1
, Qnil
);
4721 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4722 Sinternal_get_lisp_face_attribute
,
4724 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4725 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4726 face attribute name, signal an error.
4727 If the optional argument FRAME is given, report on face SYMBOL in that
4728 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
4729 frames). If FRAME is omitted or nil, use the selected frame. */)
4730 (symbol
, keyword
, frame
)
4731 Lisp_Object symbol
, keyword
, frame
;
4733 Lisp_Object lface
, value
= Qnil
;
4735 CHECK_SYMBOL (symbol
);
4736 CHECK_SYMBOL (keyword
);
4739 lface
= lface_from_face_name (NULL
, symbol
, 1);
4743 frame
= selected_frame
;
4744 CHECK_LIVE_FRAME (frame
);
4745 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4748 if (EQ (keyword
, QCfamily
))
4749 value
= LFACE_FAMILY (lface
);
4750 else if (EQ (keyword
, QCheight
))
4751 value
= LFACE_HEIGHT (lface
);
4752 else if (EQ (keyword
, QCweight
))
4753 value
= LFACE_WEIGHT (lface
);
4754 else if (EQ (keyword
, QCslant
))
4755 value
= LFACE_SLANT (lface
);
4756 else if (EQ (keyword
, QCunderline
))
4757 value
= LFACE_UNDERLINE (lface
);
4758 else if (EQ (keyword
, QCoverline
))
4759 value
= LFACE_OVERLINE (lface
);
4760 else if (EQ (keyword
, QCstrike_through
))
4761 value
= LFACE_STRIKE_THROUGH (lface
);
4762 else if (EQ (keyword
, QCbox
))
4763 value
= LFACE_BOX (lface
);
4764 else if (EQ (keyword
, QCinverse_video
)
4765 || EQ (keyword
, QCreverse_video
))
4766 value
= LFACE_INVERSE (lface
);
4767 else if (EQ (keyword
, QCforeground
))
4768 value
= LFACE_FOREGROUND (lface
);
4769 else if (EQ (keyword
, QCbackground
))
4770 value
= LFACE_BACKGROUND (lface
);
4771 else if (EQ (keyword
, QCstipple
))
4772 value
= LFACE_STIPPLE (lface
);
4773 else if (EQ (keyword
, QCwidth
))
4774 value
= LFACE_SWIDTH (lface
);
4775 else if (EQ (keyword
, QCinherit
))
4776 value
= LFACE_INHERIT (lface
);
4777 else if (EQ (keyword
, QCfont
))
4778 value
= LFACE_FONT (lface
);
4780 signal_error ("Invalid face attribute name", keyword
);
4786 DEFUN ("internal-lisp-face-attribute-values",
4787 Finternal_lisp_face_attribute_values
,
4788 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4789 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4790 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4794 Lisp_Object result
= Qnil
;
4796 CHECK_SYMBOL (attr
);
4798 if (EQ (attr
, QCweight
)
4799 || EQ (attr
, QCslant
)
4800 || EQ (attr
, QCwidth
))
4802 /* Extract permissible symbols from tables. */
4803 struct table_entry
*table
;
4806 if (EQ (attr
, QCweight
))
4807 table
= weight_table
, dim
= DIM (weight_table
);
4808 else if (EQ (attr
, QCslant
))
4809 table
= slant_table
, dim
= DIM (slant_table
);
4811 table
= swidth_table
, dim
= DIM (swidth_table
);
4813 for (i
= 0; i
< dim
; ++i
)
4815 Lisp_Object symbol
= *table
[i
].symbol
;
4816 Lisp_Object tail
= result
;
4819 && !EQ (XCAR (tail
), symbol
))
4823 result
= Fcons (symbol
, result
);
4826 else if (EQ (attr
, QCunderline
))
4827 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4828 else if (EQ (attr
, QCoverline
))
4829 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4830 else if (EQ (attr
, QCstrike_through
))
4831 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4832 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4833 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4839 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4840 Sinternal_merge_in_global_face
, 2, 2, 0,
4841 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4842 Default face attributes override any local face attributes. */)
4844 Lisp_Object face
, frame
;
4847 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4849 CHECK_LIVE_FRAME (frame
);
4850 global_lface
= lface_from_face_name (NULL
, face
, 1);
4851 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4852 if (NILP (local_lface
))
4853 local_lface
= Finternal_make_lisp_face (face
, frame
);
4855 /* Make every specified global attribute override the local one.
4856 BEWARE!! This is only used from `face-set-after-frame-default' where
4857 the local frame is defined from default specs in `face-defface-spec'
4858 and those should be overridden by global settings. Hence the strange
4859 "global before local" priority. */
4860 lvec
= XVECTOR (local_lface
)->contents
;
4861 gvec
= XVECTOR (global_lface
)->contents
;
4862 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4863 if (! UNSPECIFIEDP (gvec
[i
]))
4870 /* The following function is implemented for compatibility with 20.2.
4871 The function is used in x-resolve-fonts when it is asked to
4872 return fonts with the same size as the font of a face. This is
4873 done in fontset.el. */
4875 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4876 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4877 If the optional argument FRAME is given, report on face FACE in that frame.
4878 If FRAME is t, report on the defaults for face FACE (for new frames).
4879 The font default for a face is either nil, or a list
4880 of the form (bold), (italic) or (bold italic).
4881 If FRAME is omitted or nil, use the selected frame. */)
4883 Lisp_Object face
, frame
;
4887 Lisp_Object result
= Qnil
;
4888 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4890 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4891 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4892 result
= Fcons (Qbold
, result
);
4894 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4895 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4896 result
= Fcons (Qitalic
, result
);
4902 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4903 int face_id
= lookup_named_face (f
, face
, 0);
4904 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4905 return face
? build_string (face
->font_name
) : Qnil
;
4910 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4911 all attributes are `equal'. Tries to be fast because this function
4912 is called quite often. */
4915 face_attr_equal_p (v1
, v2
)
4918 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4919 and the other is specified. */
4920 if (XTYPE (v1
) != XTYPE (v2
))
4929 if (SBYTES (v1
) != SBYTES (v2
))
4932 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4939 return !NILP (Fequal (v1
, v2
));
4944 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4945 all attributes are `equal'. Tries to be fast because this function
4946 is called quite often. */
4949 lface_equal_p (v1
, v2
)
4950 Lisp_Object
*v1
, *v2
;
4954 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4955 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4961 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4962 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4963 doc
: /* True if FACE1 and FACE2 are equal.
4964 If the optional argument FRAME is given, report on face FACE in that frame.
4965 If FRAME is t, report on the defaults for face FACE (for new frames).
4966 If FRAME is omitted or nil, use the selected frame. */)
4967 (face1
, face2
, frame
)
4968 Lisp_Object face1
, face2
, frame
;
4972 Lisp_Object lface1
, lface2
;
4977 /* Don't use check_x_frame here because this function is called
4978 before X frames exist. At that time, if FRAME is nil,
4979 selected_frame will be used which is the frame dumped with
4980 Emacs. That frame is not an X frame. */
4981 f
= frame_or_selected_frame (frame
, 2);
4983 lface1
= lface_from_face_name (NULL
, face1
, 1);
4984 lface2
= lface_from_face_name (NULL
, face2
, 1);
4985 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4986 XVECTOR (lface2
)->contents
);
4987 return equal_p
? Qt
: Qnil
;
4991 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4992 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4993 doc
: /* True if FACE has no attribute specified.
4994 If the optional argument FRAME is given, report on face FACE in that frame.
4995 If FRAME is t, report on the defaults for face FACE (for new frames).
4996 If FRAME is omitted or nil, use the selected frame. */)
4998 Lisp_Object face
, frame
;
5005 frame
= selected_frame
;
5006 CHECK_LIVE_FRAME (frame
);
5010 lface
= lface_from_face_name (NULL
, face
, 1);
5012 lface
= lface_from_face_name (f
, face
, 1);
5014 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5015 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5018 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5022 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5024 doc
: /* Return an alist of frame-local faces defined on FRAME.
5025 For internal use only. */)
5029 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5030 return f
->face_alist
;
5034 /* Return a hash code for Lisp string STRING with case ignored. Used
5035 below in computing a hash value for a Lisp face. */
5037 static INLINE
unsigned
5038 hash_string_case_insensitive (string
)
5041 const unsigned char *s
;
5043 xassert (STRINGP (string
));
5044 for (s
= SDATA (string
); *s
; ++s
)
5045 hash
= (hash
<< 1) ^ tolower (*s
);
5050 /* Return a hash code for face attribute vector V. */
5052 static INLINE
unsigned
5056 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5057 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5058 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5059 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5060 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5061 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5062 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5066 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5067 considering charsets/registries). They do if they specify the same
5068 family, point size, weight, width, slant, and fontset. Both LFACE1
5069 and LFACE2 must be fully-specified. */
5072 lface_same_font_attributes_p (lface1
, lface2
)
5073 Lisp_Object
*lface1
, *lface2
;
5075 xassert (lface_fully_specified_p (lface1
)
5076 && lface_fully_specified_p (lface2
));
5077 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5078 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5079 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5080 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5081 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5082 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5083 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5084 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5085 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5086 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5087 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5088 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5093 /***********************************************************************
5095 ***********************************************************************/
5097 /* Allocate and return a new realized face for Lisp face attribute
5100 static struct face
*
5101 make_realized_face (attr
)
5104 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5105 bzero (face
, sizeof *face
);
5106 face
->ascii_face
= face
;
5107 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5112 /* Free realized face FACE, including its X resources. FACE may
5116 free_realized_face (f
, face
)
5122 #ifdef HAVE_WINDOW_SYSTEM
5123 if (FRAME_WINDOW_P (f
))
5125 /* Free fontset of FACE if it is ASCII face. */
5126 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5127 free_face_fontset (f
, face
);
5130 x_free_gc (f
, face
->gc
);
5134 free_face_colors (f
, face
);
5135 x_destroy_bitmap (f
, face
->stipple
);
5137 #endif /* HAVE_WINDOW_SYSTEM */
5144 /* Prepare face FACE for subsequent display on frame F. This
5145 allocated GCs if they haven't been allocated yet or have been freed
5146 by clearing the face cache. */
5149 prepare_face_for_display (f
, face
)
5153 #ifdef HAVE_WINDOW_SYSTEM
5154 xassert (FRAME_WINDOW_P (f
));
5159 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5161 xgcv
.foreground
= face
->foreground
;
5162 xgcv
.background
= face
->background
;
5163 #ifdef HAVE_X_WINDOWS
5164 xgcv
.graphics_exposures
= False
;
5166 /* The font of FACE may be null if we couldn't load it. */
5169 #ifdef HAVE_X_WINDOWS
5170 xgcv
.font
= face
->font
->fid
;
5173 xgcv
.font
= face
->font
;
5176 xgcv
.font
= face
->font
;
5182 #ifdef HAVE_X_WINDOWS
5185 xgcv
.fill_style
= FillOpaqueStippled
;
5186 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5187 mask
|= GCFillStyle
| GCStipple
;
5190 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5193 #endif /* HAVE_WINDOW_SYSTEM */
5197 /* Returns the `distance' between the colors X and Y. */
5200 color_distance (x
, y
)
5203 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5204 Quoting from that paper:
5206 This formula has results that are very close to L*u*v* (with the
5207 modified lightness curve) and, more importantly, it is a more even
5208 algorithm: it does not have a range of colours where it suddenly
5209 gives far from optimal results.
5211 See <http://www.compuphase.com/cmetric.htm> for more info. */
5213 long r
= (x
->red
- y
->red
) >> 8;
5214 long g
= (x
->green
- y
->green
) >> 8;
5215 long b
= (x
->blue
- y
->blue
) >> 8;
5216 long r_mean
= (x
->red
+ y
->red
) >> 9;
5219 (((512 + r_mean
) * r
* r
) >> 8)
5221 + (((767 - r_mean
) * b
* b
) >> 8);
5225 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5226 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5227 COLOR1 and COLOR2 may be either strings containing the color name,
5228 or lists of the form (RED GREEN BLUE).
5229 If FRAME is unspecified or nil, the current frame is used. */)
5230 (color1
, color2
, frame
)
5231 Lisp_Object color1
, color2
, frame
;
5234 XColor cdef1
, cdef2
;
5237 frame
= selected_frame
;
5238 CHECK_LIVE_FRAME (frame
);
5241 if ((CONSP (color1
) && !parse_rgb_list (color1
, &cdef1
))
5242 || !STRINGP (color1
)
5243 || !defined_color (f
, SDATA (color1
), &cdef1
, 0))
5244 signal_error ("Invalid color", color1
);
5245 if ((CONSP (color2
) && !parse_rgb_list (color2
, &cdef2
))
5246 || !STRINGP (color2
)
5247 || !defined_color (f
, SDATA (color2
), &cdef2
, 0))
5248 signal_error ("Invalid color", color2
);
5250 return make_number (color_distance (&cdef1
, &cdef2
));
5254 /***********************************************************************
5256 ***********************************************************************/
5258 /* Return a new face cache for frame F. */
5260 static struct face_cache
*
5264 struct face_cache
*c
;
5267 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5268 bzero (c
, sizeof *c
);
5269 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5270 c
->buckets
= (struct face
**) xmalloc (size
);
5271 bzero (c
->buckets
, size
);
5273 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5275 c
->menu_face_changed_p
= menu_face_changed_default
;
5280 /* Clear out all graphics contexts for all realized faces, except for
5281 the basic faces. This should be done from time to time just to avoid
5282 keeping too many graphics contexts that are no longer needed. */
5286 struct face_cache
*c
;
5288 if (c
&& FRAME_WINDOW_P (c
->f
))
5290 #ifdef HAVE_WINDOW_SYSTEM
5292 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5294 struct face
*face
= c
->faces_by_id
[i
];
5295 if (face
&& face
->gc
)
5297 x_free_gc (c
->f
, face
->gc
);
5301 #endif /* HAVE_WINDOW_SYSTEM */
5306 /* Free all realized faces in face cache C, including basic faces.
5307 C may be null. If faces are freed, make sure the frame's current
5308 matrix is marked invalid, so that a display caused by an expose
5309 event doesn't try to use faces we destroyed. */
5312 free_realized_faces (c
)
5313 struct face_cache
*c
;
5318 struct frame
*f
= c
->f
;
5320 /* We must block input here because we can't process X events
5321 safely while only some faces are freed, or when the frame's
5322 current matrix still references freed faces. */
5325 for (i
= 0; i
< c
->used
; ++i
)
5327 free_realized_face (f
, c
->faces_by_id
[i
]);
5328 c
->faces_by_id
[i
] = NULL
;
5332 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5333 bzero (c
->buckets
, size
);
5335 /* Must do a thorough redisplay the next time. Mark current
5336 matrices as invalid because they will reference faces freed
5337 above. This function is also called when a frame is
5338 destroyed. In this case, the root window of F is nil. */
5339 if (WINDOWP (f
->root_window
))
5341 clear_current_matrices (f
);
5342 ++windows_or_buffers_changed
;
5350 /* Free all faces realized for multibyte characters on frame F that
5354 free_realized_multibyte_face (f
, fontset
)
5358 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5362 /* We must block input here because we can't process X events safely
5363 while only some faces are freed, or when the frame's current
5364 matrix still references freed faces. */
5367 for (i
= 0; i
< cache
->used
; i
++)
5369 face
= cache
->faces_by_id
[i
];
5371 && face
!= face
->ascii_face
5372 && face
->fontset
== fontset
)
5374 uncache_face (cache
, face
);
5375 free_realized_face (f
, face
);
5379 /* Must do a thorough redisplay the next time. Mark current
5380 matrices as invalid because they will reference faces freed
5381 above. This function is also called when a frame is destroyed.
5382 In this case, the root window of F is nil. */
5383 if (WINDOWP (f
->root_window
))
5385 clear_current_matrices (f
);
5386 ++windows_or_buffers_changed
;
5393 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5394 This is done after attributes of a named face have been changed,
5395 because we can't tell which realized faces depend on that face. */
5398 free_all_realized_faces (frame
)
5404 FOR_EACH_FRAME (rest
, frame
)
5405 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5408 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5412 /* Free face cache C and faces in it, including their X resources. */
5416 struct face_cache
*c
;
5420 free_realized_faces (c
);
5422 xfree (c
->faces_by_id
);
5428 /* Cache realized face FACE in face cache C. HASH is the hash value
5429 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5430 collision list of the face hash table of C. This is done because
5431 otherwise lookup_face would find FACE for every character, even if
5432 faces with the same attributes but for specific characters exist. */
5435 cache_face (c
, face
, hash
)
5436 struct face_cache
*c
;
5440 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5444 if (face
->fontset
>= 0)
5446 struct face
*last
= c
->buckets
[i
];
5457 c
->buckets
[i
] = face
;
5458 face
->prev
= face
->next
= NULL
;
5464 face
->next
= c
->buckets
[i
];
5466 face
->next
->prev
= face
;
5467 c
->buckets
[i
] = face
;
5470 /* Find a free slot in C->faces_by_id and use the index of the free
5471 slot as FACE->id. */
5472 for (i
= 0; i
< c
->used
; ++i
)
5473 if (c
->faces_by_id
[i
] == NULL
)
5477 /* Maybe enlarge C->faces_by_id. */
5480 if (c
->used
== c
->size
)
5483 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5484 if (new_size
== c
->size
)
5485 abort (); /* Alternatives? ++kfs */
5486 sz
= new_size
* sizeof *c
->faces_by_id
;
5487 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5494 /* Check that FACE got a unique id. */
5499 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5500 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5506 #endif /* GLYPH_DEBUG */
5508 c
->faces_by_id
[i
] = face
;
5512 /* Remove face FACE from cache C. */
5515 uncache_face (c
, face
)
5516 struct face_cache
*c
;
5519 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5522 face
->prev
->next
= face
->next
;
5524 c
->buckets
[i
] = face
->next
;
5527 face
->next
->prev
= face
->prev
;
5529 c
->faces_by_id
[face
->id
] = NULL
;
5530 if (face
->id
== c
->used
)
5535 /* Look up a realized face with face attributes ATTR in the face cache
5536 of frame F. The face will be used to display character C. Value
5537 is the ID of the face found. If no suitable face is found, realize
5538 a new one. In that case, if C is a multibyte character, BASE_FACE
5539 is a face that has the same attributes. */
5542 lookup_face (f
, attr
, c
, base_face
)
5546 struct face
*base_face
;
5548 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5553 xassert (cache
!= NULL
);
5554 check_lface_attrs (attr
);
5556 /* Look up ATTR in the face cache. */
5557 hash
= lface_hash (attr
);
5558 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5560 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5561 if (face
->hash
== hash
5562 && (!FRAME_WINDOW_P (f
)
5563 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5564 && lface_equal_p (face
->lface
, attr
))
5567 /* If not found, realize a new face. */
5569 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5572 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5574 /* When this function is called from face_for_char (in this case, C is
5575 a multibyte character), a fontset of a face returned by
5576 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5577 C) is not sutisfied. The fontset is set for this face by
5578 face_for_char later. */
5580 if (FRAME_WINDOW_P (f
))
5581 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5583 #endif /* GLYPH_DEBUG */
5589 /* Return the face id of the realized face for named face SYMBOL on
5590 frame F suitable for displaying character C. Value is -1 if the
5591 face couldn't be determined, which might happen if the default face
5592 isn't realized and cannot be realized. */
5595 lookup_named_face (f
, symbol
, c
)
5600 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5601 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5602 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5604 if (default_face
== NULL
)
5606 if (!realize_basic_faces (f
))
5608 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5611 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5612 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5613 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5615 return lookup_face (f
, attrs
, c
, NULL
);
5619 /* Return the ID of the realized ASCII face of Lisp face with ID
5620 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5623 ascii_face_of_lisp_face (f
, lface_id
)
5629 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5631 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5632 face_id
= lookup_named_face (f
, face_name
, 0);
5641 /* Return a face for charset ASCII that is like the face with id
5642 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5643 STEPS < 0 means larger. Value is the id of the face. */
5646 smaller_face (f
, face_id
, steps
)
5650 #ifdef HAVE_WINDOW_SYSTEM
5652 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5653 int pt
, last_pt
, last_height
;
5656 struct face
*new_face
;
5658 /* If not called for an X frame, just return the original face. */
5659 if (FRAME_TERMCAP_P (f
))
5662 /* Try in increments of 1/2 pt. */
5663 delta
= steps
< 0 ? 5 : -5;
5664 steps
= abs (steps
);
5666 face
= FACE_FROM_ID (f
, face_id
);
5667 bcopy (face
->lface
, attrs
, sizeof attrs
);
5668 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5669 new_face_id
= face_id
;
5670 last_height
= FONT_HEIGHT (face
->font
);
5674 /* Give up if we cannot find a font within 10pt. */
5675 && abs (last_pt
- pt
) < 100)
5677 /* Look up a face for a slightly smaller/larger font. */
5679 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5680 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5681 new_face
= FACE_FROM_ID (f
, new_face_id
);
5683 /* If height changes, count that as one step. */
5684 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5685 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5688 last_height
= FONT_HEIGHT (new_face
->font
);
5695 #else /* not HAVE_WINDOW_SYSTEM */
5699 #endif /* not HAVE_WINDOW_SYSTEM */
5703 /* Return a face for charset ASCII that is like the face with id
5704 FACE_ID on frame F, but has height HEIGHT. */
5707 face_with_height (f
, face_id
, height
)
5712 #ifdef HAVE_WINDOW_SYSTEM
5714 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5716 if (FRAME_TERMCAP_P (f
)
5720 face
= FACE_FROM_ID (f
, face_id
);
5721 bcopy (face
->lface
, attrs
, sizeof attrs
);
5722 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5723 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5724 #endif /* HAVE_WINDOW_SYSTEM */
5730 /* Return the face id of the realized face for named face SYMBOL on
5731 frame F suitable for displaying character C, and use attributes of
5732 the face FACE_ID for attributes that aren't completely specified by
5733 SYMBOL. This is like lookup_named_face, except that the default
5734 attributes come from FACE_ID, not from the default face. FACE_ID
5735 is assumed to be already realized. */
5738 lookup_derived_face (f
, symbol
, c
, face_id
)
5744 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5745 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5746 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5751 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5752 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5753 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5754 return lookup_face (f
, attrs
, c
, default_face
);
5757 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5758 Sface_attributes_as_vector
, 1, 1, 0,
5759 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5764 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5766 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5773 /***********************************************************************
5774 Face capability testing
5775 ***********************************************************************/
5778 /* If the distance (as returned by color_distance) between two colors is
5779 less than this, then they are considered the same, for determining
5780 whether a color is supported or not. The range of values is 0-65535. */
5782 #define TTY_SAME_COLOR_THRESHOLD 10000
5784 #ifdef HAVE_WINDOW_SYSTEM
5786 /* Return non-zero if all the face attributes in ATTRS are supported
5787 on the window-system frame F.
5789 The definition of `supported' is somewhat heuristic, but basically means
5790 that a face containing all the attributes in ATTRS, when merged with the
5791 default face for display, can be represented in a way that's
5793 \(1) different in appearance than the default face, and
5794 \(2) `close in spirit' to what the attributes specify, if not exact. */
5797 x_supports_face_attributes_p (f
, attrs
, def_face
)
5800 struct face
*def_face
;
5802 Lisp_Object
*def_attrs
= def_face
->lface
;
5804 /* Check that other specified attributes are different that the default
5806 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5807 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5808 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5809 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5810 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5811 def_attrs
[LFACE_INVERSE_INDEX
]))
5812 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5813 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5814 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5815 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5816 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5817 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5818 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5819 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5820 def_attrs
[LFACE_STIPPLE_INDEX
]))
5821 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5822 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5823 def_attrs
[LFACE_OVERLINE_INDEX
]))
5824 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5825 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5826 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5827 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5828 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5829 def_attrs
[LFACE_BOX_INDEX
])))
5832 /* Check font-related attributes, as those are the most commonly
5833 "unsupported" on a window-system (because of missing fonts). */
5834 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5835 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5836 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5837 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5838 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5839 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
5842 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5844 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5846 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5848 face
= FACE_FROM_ID (f
, lookup_face (f
, merged_attrs
, 0, 0));
5851 error ("cannot make face");
5853 /* If the font is the same, then not supported. */
5854 if (face
->font
== def_face
->font
)
5858 /* Everything checks out, this face is supported. */
5862 #endif /* HAVE_WINDOW_SYSTEM */
5864 /* Return non-zero if all the face attributes in ATTRS are supported
5867 The definition of `supported' is somewhat heuristic, but basically means
5868 that a face containing all the attributes in ATTRS, when merged
5869 with the default face for display, can be represented in a way that's
5871 \(1) different in appearance than the default face, and
5872 \(2) `close in spirit' to what the attributes specify, if not exact.
5874 Point (2) implies that a `:weight black' attribute will be satisfied
5875 by any terminal that can display bold, and a `:foreground "yellow"' as
5876 long as the terminal can display a yellowish color, but `:slant italic'
5877 will _not_ be satisfied by the tty display code's automatic
5878 substitution of a `dim' face for italic. */
5881 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5884 struct face
*def_face
;
5887 Lisp_Object val
, fg
, bg
;
5888 XColor fg_tty_color
, fg_std_color
;
5889 XColor bg_tty_color
, bg_std_color
;
5890 unsigned test_caps
= 0;
5891 Lisp_Object
*def_attrs
= def_face
->lface
;
5894 /* First check some easy-to-check stuff; ttys support none of the
5895 following attributes, so we can just return false if any are requested
5896 (even if `nominal' values are specified, we should still return false,
5897 as that will be the same value that the default face uses). We
5898 consider :slant unsupportable on ttys, even though the face code
5899 actually `fakes' them using a dim attribute if possible. This is
5900 because the faked result is too different from what the face
5902 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5903 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5904 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5905 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5906 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5907 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5908 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5909 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5913 /* Test for terminal `capabilities' (non-color character attributes). */
5915 /* font weight (bold/dim) */
5916 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5919 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
5921 if (weight
> XLFD_WEIGHT_MEDIUM
)
5923 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
5924 return 0; /* same as default */
5925 test_caps
= TTY_CAP_BOLD
;
5927 else if (weight
< XLFD_WEIGHT_MEDIUM
)
5929 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
5930 return 0; /* same as default */
5931 test_caps
= TTY_CAP_DIM
;
5933 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
5934 return 0; /* same as default */
5938 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5939 if (!UNSPECIFIEDP (val
))
5942 return 0; /* ttys can't use colored underlines */
5943 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5944 return 0; /* same as default */
5946 test_caps
|= TTY_CAP_UNDERLINE
;
5950 val
= attrs
[LFACE_INVERSE_INDEX
];
5951 if (!UNSPECIFIEDP (val
))
5953 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5954 return 0; /* same as default */
5956 test_caps
|= TTY_CAP_INVERSE
;
5960 /* Color testing. */
5962 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5963 we use them when calling `tty_capable_p' below, even if the face
5964 specifies no colors. */
5965 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5966 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5968 /* Check if foreground color is close enough. */
5969 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
5972 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5974 if (face_attr_equal_p (fg
, def_fg
))
5975 return 0; /* same as default */
5976 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
5977 return 0; /* not a valid color */
5978 else if (color_distance (&fg_tty_color
, &fg_std_color
)
5979 > TTY_SAME_COLOR_THRESHOLD
)
5980 return 0; /* displayed color is too different */
5982 /* Make sure the color is really different than the default. */
5984 XColor def_fg_color
;
5985 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
5986 && (color_distance (&fg_tty_color
, &def_fg_color
)
5987 <= TTY_SAME_COLOR_THRESHOLD
))
5992 /* Check if background color is close enough. */
5993 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
5996 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
5998 if (face_attr_equal_p (bg
, def_bg
))
5999 return 0; /* same as default */
6000 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6001 return 0; /* not a valid color */
6002 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6003 > TTY_SAME_COLOR_THRESHOLD
)
6004 return 0; /* displayed color is too different */
6006 /* Make sure the color is really different than the default. */
6008 XColor def_bg_color
;
6009 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6010 && (color_distance (&bg_tty_color
, &def_bg_color
)
6011 <= TTY_SAME_COLOR_THRESHOLD
))
6016 /* If both foreground and background are requested, see if the
6017 distance between them is OK. We just check to see if the distance
6018 between the tty's foreground and background is close enough to the
6019 distance between the standard foreground and background. */
6020 if (STRINGP (fg
) && STRINGP (bg
))
6023 = (color_distance (&fg_std_color
, &bg_std_color
)
6024 - color_distance (&fg_tty_color
, &bg_tty_color
));
6025 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6026 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6031 /* See if the capabilities we selected above are supported, with the
6033 if (test_caps
!= 0 &&
6034 ! tty_capable_p (f
, test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6038 /* Hmmm, everything checks out, this terminal must support this face. */
6043 DEFUN ("display-supports-face-attributes-p",
6044 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6046 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6047 The optional argument DISPLAY can be a display name, a frame, or
6048 nil (meaning the selected frame's display)
6050 The definition of `supported' is somewhat heuristic, but basically means
6051 that a face containing all the attributes in ATTRIBUTES, when merged
6052 with the default face for display, can be represented in a way that's
6054 \(1) different in appearance than the default face, and
6055 \(2) `close in spirit' to what the attributes specify, if not exact.
6057 Point (2) implies that a `:weight black' attribute will be satisfied by
6058 any display that can display bold, and a `:foreground \"yellow\"' as long
6059 as it can display a yellowish color, but `:slant italic' will _not_ be
6060 satisfied by the tty display code's automatic substitution of a `dim'
6061 face for italic. */)
6062 (attributes
, display
)
6063 Lisp_Object attributes
, display
;
6068 struct face
*def_face
;
6069 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6071 if (noninteractive
|| !initialized
)
6072 /* We may not be able to access low-level face information in batch
6073 mode, or before being dumped, and this function is not going to
6074 be very useful in those cases anyway, so just give up. */
6078 frame
= selected_frame
;
6079 else if (FRAMEP (display
))
6083 /* Find any frame on DISPLAY. */
6084 Lisp_Object fl_tail
;
6087 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6089 frame
= XCAR (fl_tail
);
6090 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6091 XFRAME (frame
)->param_alist
)),
6097 CHECK_LIVE_FRAME (frame
);
6100 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6101 attrs
[i
] = Qunspecified
;
6102 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6104 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6105 if (def_face
== NULL
)
6107 if (! realize_basic_faces (f
))
6108 error ("Cannot realize default face");
6109 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6112 /* Dispatch to the appropriate handler. */
6113 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6114 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6115 #ifdef HAVE_WINDOW_SYSTEM
6117 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6120 return supports
? Qt
: Qnil
;
6124 /***********************************************************************
6126 ***********************************************************************/
6128 DEFUN ("internal-set-font-selection-order",
6129 Finternal_set_font_selection_order
,
6130 Sinternal_set_font_selection_order
, 1, 1, 0,
6131 doc
: /* Set font selection order for face font selection to ORDER.
6132 ORDER must be a list of length 4 containing the symbols `:width',
6133 `:height', `:weight', and `:slant'. Face attributes appearing
6134 first in ORDER are matched first, e.g. if `:height' appears before
6135 `:weight' in ORDER, font selection first tries to find a font with
6136 a suitable height, and then tries to match the font weight.
6143 int indices
[DIM (font_sort_order
)];
6146 bzero (indices
, sizeof indices
);
6150 CONSP (list
) && i
< DIM (indices
);
6151 list
= XCDR (list
), ++i
)
6153 Lisp_Object attr
= XCAR (list
);
6156 if (EQ (attr
, QCwidth
))
6158 else if (EQ (attr
, QCheight
))
6159 xlfd
= XLFD_POINT_SIZE
;
6160 else if (EQ (attr
, QCweight
))
6162 else if (EQ (attr
, QCslant
))
6167 if (indices
[i
] != 0)
6172 if (!NILP (list
) || i
!= DIM (indices
))
6173 signal_error ("Invalid font sort order", order
);
6174 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6175 if (indices
[i
] == 0)
6176 signal_error ("Invalid font sort order", order
);
6178 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6180 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6181 free_all_realized_faces (Qnil
);
6188 DEFUN ("internal-set-alternative-font-family-alist",
6189 Finternal_set_alternative_font_family_alist
,
6190 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6191 doc
: /* Define alternative font families to try in face font selection.
6192 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6193 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6194 be found. Value is ALIST. */)
6199 Vface_alternative_font_family_alist
= alist
;
6200 free_all_realized_faces (Qnil
);
6205 DEFUN ("internal-set-alternative-font-registry-alist",
6206 Finternal_set_alternative_font_registry_alist
,
6207 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6208 doc
: /* Define alternative font registries to try in face font selection.
6209 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6210 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6211 be found. Value is ALIST. */)
6216 Vface_alternative_font_registry_alist
= alist
;
6217 free_all_realized_faces (Qnil
);
6222 #ifdef HAVE_WINDOW_SYSTEM
6224 /* Value is non-zero if FONT is the name of a scalable font. The
6225 X11R6 XLFD spec says that point size, pixel size, and average width
6226 are zero for scalable fonts. Intlfonts contain at least one
6227 scalable font ("*-muleindian-1") for which this isn't true, so we
6228 just test average width. */
6231 font_scalable_p (font
)
6232 struct font_name
*font
;
6234 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6235 return (*s
== '0' && *(s
+ 1) == '\0')
6237 /* Windows implementation of XLFD is slightly broken for backward
6238 compatibility with previous broken versions, so test for
6239 wildcards as well as 0. */
6246 /* Ignore the difference of font point size less than this value. */
6248 #define FONT_POINT_SIZE_QUANTUM 5
6250 /* Value is non-zero if FONT1 is a better match for font attributes
6251 VALUES than FONT2. VALUES is an array of face attribute values in
6252 font sort order. COMPARE_PT_P zero means don't compare point
6253 sizes. AVGWIDTH, if not zero, is a specified font average width
6257 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6259 struct font_name
*font1
, *font2
;
6260 int compare_pt_p
, avgwidth
;
6264 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6266 int xlfd_idx
= font_sort_order
[i
];
6268 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6272 if (xlfd_idx
== XLFD_POINT_SIZE
)
6274 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6275 / font1
->rescale_ratio
));
6276 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6277 / font2
->rescale_ratio
));
6278 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6283 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6284 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6287 if (delta1
> delta2
)
6289 else if (delta1
< delta2
)
6293 /* The difference may be equal because, e.g., the face
6294 specifies `italic' but we have only `regular' and
6295 `oblique'. Prefer `oblique' in this case. */
6296 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6297 && font1
->numeric
[xlfd_idx
] > values
[i
]
6298 && font2
->numeric
[xlfd_idx
] < values
[i
])
6306 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6307 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6308 if (delta1
> delta2
)
6310 else if (delta1
< delta2
)
6316 /* We prefer a real scalable font; i.e. not what autoscaled. */
6317 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6318 && font1
->numeric
[XLFD_RESY
] > 0);
6319 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6320 && font2
->numeric
[XLFD_RESY
] > 0);
6322 if (auto_scaled_1
!= auto_scaled_2
)
6323 return auto_scaled_2
;
6326 return font1
->registry_priority
< font2
->registry_priority
;
6330 /* Value is non-zero if FONT is an exact match for face attributes in
6331 SPECIFIED. SPECIFIED is an array of face attribute values in font
6332 sort order. AVGWIDTH, if non-zero, is an average width to compare
6336 exact_face_match_p (specified
, font
, avgwidth
)
6338 struct font_name
*font
;
6343 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6344 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6347 return (i
== DIM (font_sort_order
)
6349 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6353 /* Value is the name of a scaled font, generated from scalable font
6354 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6355 Value is allocated from heap. */
6358 build_scalable_font_name (f
, font
, specified_pt
)
6360 struct font_name
*font
;
6363 char pixel_size
[20];
6365 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6368 /* If scalable font is for a specific resolution, compute
6369 the point size we must specify from the resolution of
6370 the display and the specified resolution of the font. */
6371 if (font
->numeric
[XLFD_RESY
] != 0)
6373 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6374 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
6379 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
6381 /* We may need a font of the different size. */
6382 pixel_value
*= font
->rescale_ratio
;
6384 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6385 font of the specified PIXEL_SIZE. */
6387 { /* Set point size of the font. */
6388 char point_size
[20];
6389 sprintf (point_size
, "%d", (int) pt
);
6390 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6391 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6395 /* Set pixel size. */
6396 sprintf (pixel_size
, "%d", pixel_value
);
6397 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6398 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6400 /* If font doesn't specify its resolution, use the
6401 resolution of the display. */
6402 if (font
->numeric
[XLFD_RESY
] == 0)
6405 sprintf (buffer
, "%d", (int) resy
);
6406 font
->fields
[XLFD_RESY
] = buffer
;
6407 font
->numeric
[XLFD_RESY
] = resy
;
6410 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6413 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6414 sprintf (buffer
, "%d", resx
);
6415 font
->fields
[XLFD_RESX
] = buffer
;
6416 font
->numeric
[XLFD_RESX
] = resx
;
6419 return build_font_name (font
);
6423 /* Value is non-zero if we are allowed to use scalable font FONT. We
6424 can't run a Lisp function here since this function may be called
6425 with input blocked. */
6428 may_use_scalable_font_p (font
)
6431 if (EQ (Vscalable_fonts_allowed
, Qt
))
6433 else if (CONSP (Vscalable_fonts_allowed
))
6435 Lisp_Object tail
, regexp
;
6437 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6439 regexp
= XCAR (tail
);
6440 if (STRINGP (regexp
)
6441 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6451 /* Return the name of the best matching font for face attributes ATTRS
6452 in the array of font_name structures FONTS which contains NFONTS
6453 elements. WIDTH_RATIO is a factor with which to multiply average
6454 widths if ATTRS specifies such a width.
6456 Value is a font name which is allocated from the heap. FONTS is
6457 freed by this function.
6459 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6460 indicate whether the resulting font should be drawn using overstrike
6461 to simulate bold-face. */
6464 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6467 struct font_name
*fonts
;
6470 int *needs_overstrike
;
6473 struct font_name
*best
;
6476 int exact_p
, avgwidth
;
6481 /* Make specified font attributes available in `specified',
6482 indexed by sort order. */
6483 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6485 int xlfd_idx
= font_sort_order
[i
];
6487 if (xlfd_idx
== XLFD_SWIDTH
)
6488 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6489 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6490 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6491 else if (xlfd_idx
== XLFD_WEIGHT
)
6492 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6493 else if (xlfd_idx
== XLFD_SLANT
)
6494 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6499 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6501 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6505 if (needs_overstrike
)
6506 *needs_overstrike
= 0;
6508 /* Start with the first non-scalable font in the list. */
6509 for (i
= 0; i
< nfonts
; ++i
)
6510 if (!font_scalable_p (fonts
+ i
))
6513 /* Find the best match among the non-scalable fonts. */
6518 for (i
= 1; i
< nfonts
; ++i
)
6519 if (!font_scalable_p (fonts
+ i
)
6520 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6524 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6532 /* Unless we found an exact match among non-scalable fonts, see if
6533 we can find a better match among scalable fonts. */
6536 /* A scalable font is better if
6538 1. its weight, slant, swidth attributes are better, or.
6540 2. the best non-scalable font doesn't have the required
6541 point size, and the scalable fonts weight, slant, swidth
6544 int non_scalable_has_exact_height_p
;
6546 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6547 non_scalable_has_exact_height_p
= 1;
6549 non_scalable_has_exact_height_p
= 0;
6551 for (i
= 0; i
< nfonts
; ++i
)
6552 if (font_scalable_p (fonts
+ i
))
6555 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6556 || (!non_scalable_has_exact_height_p
6557 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6559 non_scalable_has_exact_height_p
= 1;
6564 if (needs_overstrike
)
6566 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6567 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6569 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6571 /* We want a bold font, but didn't get one; try to use
6572 overstriking instead to simulate bold-face. However,
6573 don't overstrike an already-bold fontn unless the
6574 desired weight grossly exceeds the available weight. */
6575 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6576 *needs_overstrike
= (got_weight
- want_weight
) > 2;
6578 *needs_overstrike
= 1;
6583 if (font_scalable_p (best
))
6584 font_name
= build_scalable_font_name (f
, best
, pt
);
6586 font_name
= build_font_name (best
);
6588 /* Free font_name structures. */
6589 free_font_names (fonts
, nfonts
);
6595 /* Get a list of matching fonts on frame F, considering FAMILY
6596 and alternative font families from Vface_alternative_font_registry_alist.
6598 FAMILY is the font family whose alternatives are considered.
6600 REGISTRY, if a string, specifies a font registry and encoding to
6601 match. A value of nil means include fonts of any registry and
6604 Return in *FONTS a pointer to a vector of font_name structures for
6605 the fonts matched. Value is the number of fonts found. */
6608 try_alternative_families (f
, family
, registry
, fonts
)
6610 Lisp_Object family
, registry
;
6611 struct font_name
**fonts
;
6616 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6619 /* Try alternative font families. */
6620 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6623 for (alter
= XCDR (alter
);
6624 CONSP (alter
) && nfonts
== 0;
6625 alter
= XCDR (alter
))
6627 if (STRINGP (XCAR (alter
)))
6628 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6632 /* Try all scalable fonts before giving up. */
6633 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6635 int count
= SPECPDL_INDEX ();
6636 specbind (Qscalable_fonts_allowed
, Qt
);
6637 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6638 unbind_to (count
, Qnil
);
6645 /* Get a list of matching fonts on frame F.
6647 FAMILY, if a string, specifies a font family derived from the fontset.
6648 It is only used if the face does not specify any family in ATTRS or
6649 if we cannot find any font of the face's family.
6651 REGISTRY, if a string, specifies a font registry and encoding to
6652 match. A value of nil means include fonts of any registry and
6655 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6656 Otherwise, prefer FAMILY.
6658 Return in *FONTS a pointer to a vector of font_name structures for
6659 the fonts matched. Value is the number of fonts found. */
6662 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6665 Lisp_Object family
, registry
;
6666 struct font_name
**fonts
;
6667 int prefer_face_family
;
6670 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6671 Lisp_Object try_family
;
6673 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6675 if (STRINGP (try_family
))
6676 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6679 /* When realizing the default face and a font spec does not matched
6680 exactly, Emacs looks for ones with the same registry as the
6681 default font. On the Mac, this is mac-roman, which does not work
6682 if the family is -etl-fixed, e.g. The following widens the
6683 choices and fixes that problem. */
6684 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
)
6685 && xstricmp (SDATA (registry
), "mac-roman") == 0)
6686 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6689 if (EQ (try_family
, family
))
6690 family
= face_family
;
6692 if (nfonts
== 0 && STRINGP (family
))
6693 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6695 /* Try font family of the default face or "fixed". */
6698 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6700 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6702 family
= build_string ("fixed");
6703 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6706 /* Try any family with the given registry. */
6708 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6714 /* Return the fontset id of the base fontset name or alias name given
6715 by the fontset attribute of ATTRS. Value is -1 if the fontset
6716 attribute of ATTRS doesn't name a fontset. */
6719 face_fontset (attrs
)
6724 name
= attrs
[LFACE_FONT_INDEX
];
6725 if (!STRINGP (name
))
6727 return fs_query_fontset (name
, 0);
6731 /* Choose a name of font to use on frame F to display character C with
6732 Lisp face attributes specified by ATTRS. The font name is
6733 determined by the font-related attributes in ATTRS and the name
6734 pattern for C in FONTSET. Value is the font name which is
6735 allocated from the heap and must be freed by the caller, or NULL if
6736 we can get no information about the font name of C. It is assured
6737 that we always get some information for a single byte
6740 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6741 indicate whether the resulting font should be drawn using overstrike
6742 to simulate bold-face. */
6745 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6749 int *needs_overstrike
;
6751 Lisp_Object pattern
;
6752 char *font_name
= NULL
;
6753 struct font_name
*fonts
;
6754 int nfonts
, width_ratio
;
6756 if (needs_overstrike
)
6757 *needs_overstrike
= 0;
6759 /* Get (foundry and) family name and registry (and encoding) name of
6761 pattern
= fontset_font_pattern (f
, fontset
, c
);
6764 xassert (!SINGLE_BYTE_CHAR_P (c
));
6768 /* If what we got is a name pattern, return it. */
6769 if (STRINGP (pattern
))
6770 return xstrdup (SDATA (pattern
));
6772 /* Get a list of fonts matching that pattern and choose the
6773 best match for the specified face attributes from it. */
6774 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6775 (SINGLE_BYTE_CHAR_P (c
)
6776 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6777 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6779 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6780 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6785 #endif /* HAVE_WINDOW_SYSTEM */
6789 /***********************************************************************
6791 ***********************************************************************/
6793 /* Realize basic faces on frame F. Value is zero if frame parameters
6794 of F don't contain enough information needed to realize the default
6798 realize_basic_faces (f
)
6802 int count
= SPECPDL_INDEX ();
6804 /* Block input here so that we won't be surprised by an X expose
6805 event, for instance, without having the faces set up. */
6807 specbind (Qscalable_fonts_allowed
, Qt
);
6809 if (realize_default_face (f
))
6811 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6812 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6813 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6814 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6815 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6816 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6817 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6818 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6819 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6820 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6822 /* Reflect changes in the `menu' face in menu bars. */
6823 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6825 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6826 #ifdef USE_X_TOOLKIT
6827 x_update_menu_appearance (f
);
6834 unbind_to (count
, Qnil
);
6840 /* Realize the default face on frame F. If the face is not fully
6841 specified, make it fully-specified. Attributes of the default face
6842 that are not explicitly specified are taken from frame parameters. */
6845 realize_default_face (f
)
6848 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6850 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6851 Lisp_Object frame_font
;
6854 /* If the `default' face is not yet known, create it. */
6855 lface
= lface_from_face_name (f
, Qdefault
, 0);
6859 XSETFRAME (frame
, f
);
6860 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6864 #ifdef HAVE_WINDOW_SYSTEM
6865 if (FRAME_WINDOW_P (f
))
6867 /* Set frame_font to the value of the `font' frame parameter. */
6868 frame_font
= Fassq (Qfont
, f
->param_alist
);
6869 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6870 frame_font
= XCDR (frame_font
);
6871 set_lface_from_font_name (f
, lface
, frame_font
,
6872 f
->default_face_done_p
, 1);
6873 f
->default_face_done_p
= 1;
6875 #endif /* HAVE_WINDOW_SYSTEM */
6877 if (!FRAME_WINDOW_P (f
))
6879 LFACE_FAMILY (lface
) = build_string ("default");
6880 LFACE_SWIDTH (lface
) = Qnormal
;
6881 LFACE_HEIGHT (lface
) = make_number (1);
6882 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
6883 LFACE_WEIGHT (lface
) = Qnormal
;
6884 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
6885 LFACE_SLANT (lface
) = Qnormal
;
6886 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6889 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6890 LFACE_UNDERLINE (lface
) = Qnil
;
6892 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6893 LFACE_OVERLINE (lface
) = Qnil
;
6895 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6896 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6898 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6899 LFACE_BOX (lface
) = Qnil
;
6901 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6902 LFACE_INVERSE (lface
) = Qnil
;
6904 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6906 /* This function is called so early that colors are not yet
6907 set in the frame parameter list. */
6908 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6910 if (CONSP (color
) && STRINGP (XCDR (color
)))
6911 LFACE_FOREGROUND (lface
) = XCDR (color
);
6912 else if (FRAME_WINDOW_P (f
))
6914 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6915 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6920 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6922 /* This function is called so early that colors are not yet
6923 set in the frame parameter list. */
6924 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6925 if (CONSP (color
) && STRINGP (XCDR (color
)))
6926 LFACE_BACKGROUND (lface
) = XCDR (color
);
6927 else if (FRAME_WINDOW_P (f
))
6929 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6930 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6935 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6936 LFACE_STIPPLE (lface
) = Qnil
;
6938 /* Realize the face; it must be fully-specified now. */
6939 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6940 check_lface (lface
);
6941 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6942 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6947 /* Realize basic faces other than the default face in face cache C.
6948 SYMBOL is the face name, ID is the face id the realized face must
6949 have. The default face must have been realized already. */
6952 realize_named_face (f
, symbol
, id
)
6957 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6958 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6959 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6960 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6961 struct face
*new_face
;
6963 /* The default face must exist and be fully specified. */
6964 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6965 check_lface_attrs (attrs
);
6966 xassert (lface_fully_specified_p (attrs
));
6968 /* If SYMBOL isn't know as a face, create it. */
6972 XSETFRAME (frame
, f
);
6973 lface
= Finternal_make_lisp_face (symbol
, frame
);
6976 /* Merge SYMBOL's face with the default face. */
6977 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6978 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
6980 /* Realize the face. */
6981 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6985 /* Realize the fully-specified face with attributes ATTRS in face
6986 cache CACHE for character C. If C is a multibyte character,
6987 BASE_FACE is a face that has the same attributes. Otherwise,
6988 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6989 ID of face to remove before caching the new face. Value is a
6990 pointer to the newly created realized face. */
6992 static struct face
*
6993 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6994 struct face_cache
*cache
;
6997 struct face
*base_face
;
7002 /* LFACE must be fully specified. */
7003 xassert (cache
!= NULL
);
7004 check_lface_attrs (attrs
);
7006 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7008 /* Remove the former face. */
7009 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7010 uncache_face (cache
, former_face
);
7011 free_realized_face (cache
->f
, former_face
);
7014 if (FRAME_WINDOW_P (cache
->f
))
7015 face
= realize_x_face (cache
, attrs
, c
, base_face
);
7016 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7017 face
= realize_tty_face (cache
, attrs
, c
);
7021 /* Insert the new face. */
7022 cache_face (cache
, face
, lface_hash (attrs
));
7023 #ifdef HAVE_WINDOW_SYSTEM
7024 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
7025 load_face_font (cache
->f
, face
, c
);
7026 #endif /* HAVE_WINDOW_SYSTEM */
7031 /* Realize the fully-specified face with attributes ATTRS in face
7032 cache CACHE for character C. Do it for X frame CACHE->f. If C is
7033 a multibyte character, BASE_FACE is a face that has the same
7034 attributes. Otherwise, BASE_FACE is ignored. If the new face
7035 doesn't share font with the default face, a fontname is allocated
7036 from the heap and set in `font_name' of the new face, but it is not
7037 yet loaded here. Value is a pointer to the newly created realized
7040 static struct face
*
7041 realize_x_face (cache
, attrs
, c
, base_face
)
7042 struct face_cache
*cache
;
7045 struct face
*base_face
;
7047 #ifdef HAVE_WINDOW_SYSTEM
7048 struct face
*face
, *default_face
;
7050 Lisp_Object stipple
, overline
, strike_through
, box
;
7052 xassert (FRAME_WINDOW_P (cache
->f
));
7053 xassert (SINGLE_BYTE_CHAR_P (c
)
7056 /* Allocate a new realized face. */
7057 face
= make_realized_face (attrs
);
7061 /* If C is a multibyte character, we share all face attirbutes with
7062 BASE_FACE including the realized fontset. But, we must load a
7064 if (!SINGLE_BYTE_CHAR_P (c
))
7066 bcopy (base_face
, face
, sizeof *face
);
7069 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7070 face
->colors_copied_bitwise_p
= 1;
7072 /* to force realize_face to load font */
7077 /* Now we are realizing a face for ASCII (and unibyte) characters. */
7079 /* Determine the font to use. Most of the time, the font will be
7080 the same as the font of the default face, so try that first. */
7081 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7083 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
7084 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7086 face
->font
= default_face
->font
;
7087 face
->fontset
= default_face
->fontset
;
7088 face
->font_info_id
= default_face
->font_info_id
;
7089 face
->font_name
= default_face
->font_name
;
7090 face
->ascii_face
= face
;
7092 /* But, as we can't share the fontset, make a new realized
7093 fontset that has the same base fontset as of the default
7096 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
7100 /* If the face attribute ATTRS specifies a fontset, use it as
7101 the base of a new realized fontset. Otherwise, use the same
7102 base fontset as of the default face. The base determines
7103 registry and encoding of a font. It may also determine
7104 foundry and family. The other fields of font name pattern
7105 are constructed from ATTRS. */
7106 int fontset
= face_fontset (attrs
);
7108 if ((fontset
== -1) && default_face
)
7109 fontset
= default_face
->fontset
;
7110 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
7111 face
->font
= NULL
; /* to force realize_face to load font */
7114 /* Load colors, and set remaining attributes. */
7116 load_face_colors (f
, face
, attrs
);
7119 box
= attrs
[LFACE_BOX_INDEX
];
7122 /* A simple box of line width 1 drawn in color given by
7124 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7126 face
->box
= FACE_SIMPLE_BOX
;
7127 face
->box_line_width
= 1;
7129 else if (INTEGERP (box
))
7131 /* Simple box of specified line width in foreground color of the
7133 xassert (XINT (box
) != 0);
7134 face
->box
= FACE_SIMPLE_BOX
;
7135 face
->box_line_width
= XINT (box
);
7136 face
->box_color
= face
->foreground
;
7137 face
->box_color_defaulted_p
= 1;
7139 else if (CONSP (box
))
7141 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7142 being one of `raised' or `sunken'. */
7143 face
->box
= FACE_SIMPLE_BOX
;
7144 face
->box_color
= face
->foreground
;
7145 face
->box_color_defaulted_p
= 1;
7146 face
->box_line_width
= 1;
7150 Lisp_Object keyword
, value
;
7152 keyword
= XCAR (box
);
7160 if (EQ (keyword
, QCline_width
))
7162 if (INTEGERP (value
) && XINT (value
) != 0)
7163 face
->box_line_width
= XINT (value
);
7165 else if (EQ (keyword
, QCcolor
))
7167 if (STRINGP (value
))
7169 face
->box_color
= load_color (f
, face
, value
,
7171 face
->use_box_color_for_shadows_p
= 1;
7174 else if (EQ (keyword
, QCstyle
))
7176 if (EQ (value
, Qreleased_button
))
7177 face
->box
= FACE_RAISED_BOX
;
7178 else if (EQ (value
, Qpressed_button
))
7179 face
->box
= FACE_SUNKEN_BOX
;
7184 /* Text underline, overline, strike-through. */
7186 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7188 /* Use default color (same as foreground color). */
7189 face
->underline_p
= 1;
7190 face
->underline_defaulted_p
= 1;
7191 face
->underline_color
= 0;
7193 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7195 /* Use specified color. */
7196 face
->underline_p
= 1;
7197 face
->underline_defaulted_p
= 0;
7198 face
->underline_color
7199 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7200 LFACE_UNDERLINE_INDEX
);
7202 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7204 face
->underline_p
= 0;
7205 face
->underline_defaulted_p
= 0;
7206 face
->underline_color
= 0;
7209 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7210 if (STRINGP (overline
))
7212 face
->overline_color
7213 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7214 LFACE_OVERLINE_INDEX
);
7215 face
->overline_p
= 1;
7217 else if (EQ (overline
, Qt
))
7219 face
->overline_color
= face
->foreground
;
7220 face
->overline_color_defaulted_p
= 1;
7221 face
->overline_p
= 1;
7224 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7225 if (STRINGP (strike_through
))
7227 face
->strike_through_color
7228 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7229 LFACE_STRIKE_THROUGH_INDEX
);
7230 face
->strike_through_p
= 1;
7232 else if (EQ (strike_through
, Qt
))
7234 face
->strike_through_color
= face
->foreground
;
7235 face
->strike_through_color_defaulted_p
= 1;
7236 face
->strike_through_p
= 1;
7239 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7240 if (!NILP (stipple
))
7241 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7243 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7245 #endif /* HAVE_WINDOW_SYSTEM */
7249 /* Map a specified color of face FACE on frame F to a tty color index.
7250 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7251 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7252 default foreground/background colors. */
7255 map_tty_color (f
, face
, idx
, defaulted
)
7258 enum lface_attribute_index idx
;
7261 Lisp_Object frame
, color
, def
;
7262 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7263 unsigned long default_pixel
, default_other_pixel
, pixel
;
7265 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7269 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7270 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7274 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7275 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7278 XSETFRAME (frame
, f
);
7279 color
= face
->lface
[idx
];
7283 && CONSP (Vtty_defined_color_alist
)
7284 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7287 /* Associations in tty-defined-color-alist are of the form
7288 (NAME INDEX R G B). We need the INDEX part. */
7289 pixel
= XINT (XCAR (XCDR (def
)));
7292 if (pixel
== default_pixel
&& STRINGP (color
))
7294 pixel
= load_color (f
, face
, color
, idx
);
7296 #if defined (MSDOS) || defined (WINDOWSNT)
7297 /* If the foreground of the default face is the default color,
7298 use the foreground color defined by the frame. */
7300 if (FRAME_MSDOS_P (f
))
7303 if (pixel
== default_pixel
7304 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7307 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7309 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7310 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7313 else if (pixel
== default_other_pixel
)
7316 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7318 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7319 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7325 #endif /* MSDOS or WINDOWSNT */
7329 face
->foreground
= pixel
;
7331 face
->background
= pixel
;
7335 /* Realize the fully-specified face with attributes ATTRS in face
7336 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7337 pointer to the newly created realized face. */
7339 static struct face
*
7340 realize_tty_face (cache
, attrs
, c
)
7341 struct face_cache
*cache
;
7347 int face_colors_defaulted
= 0;
7348 struct frame
*f
= cache
->f
;
7350 /* Frame must be a termcap frame. */
7351 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7353 /* Allocate a new realized face. */
7354 face
= make_realized_face (attrs
);
7355 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7357 /* Map face attributes to TTY appearances. We map slant to
7358 dimmed text because we want italic text to appear differently
7359 and because dimmed text is probably used infrequently. */
7360 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7361 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7363 if (weight
> XLFD_WEIGHT_MEDIUM
)
7364 face
->tty_bold_p
= 1;
7365 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7366 face
->tty_dim_p
= 1;
7367 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7368 face
->tty_underline_p
= 1;
7369 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7370 face
->tty_reverse_p
= 1;
7372 /* Map color names to color indices. */
7373 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7374 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7376 /* Swap colors if face is inverse-video. If the colors are taken
7377 from the frame colors, they are already inverted, since the
7378 frame-creation function calls x-handle-reverse-video. */
7379 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7381 unsigned long tem
= face
->foreground
;
7382 face
->foreground
= face
->background
;
7383 face
->background
= tem
;
7386 if (tty_suppress_bold_inverse_default_colors_p
7388 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7389 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7390 face
->tty_bold_p
= 0;
7396 DEFUN ("tty-suppress-bold-inverse-default-colors",
7397 Ftty_suppress_bold_inverse_default_colors
,
7398 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7399 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7400 SUPPRESS non-nil means suppress it.
7401 This affects bold faces on TTYs whose foreground is the default background
7402 color of the display and whose background is the default foreground color.
7403 For such faces, the bold face attribute is ignored if this variable
7406 Lisp_Object suppress
;
7408 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7409 ++face_change_count
;
7415 /***********************************************************************
7417 ***********************************************************************/
7419 /* Return the ID of the face to use to display character CH with face
7420 property PROP on frame F in current_buffer. */
7423 compute_char_face (f
, ch
, prop
)
7430 if (NILP (current_buffer
->enable_multibyte_characters
))
7435 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7436 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7440 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7441 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7442 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7443 merge_face_ref (f
, prop
, attrs
, 1, 0);
7444 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7450 /* Return the face ID associated with buffer position POS for
7451 displaying ASCII characters. Return in *ENDPTR the position at
7452 which a different face is needed, as far as text properties and
7453 overlays are concerned. W is a window displaying current_buffer.
7455 REGION_BEG, REGION_END delimit the region, so it can be
7458 LIMIT is a position not to scan beyond. That is to limit the time
7459 this function can take.
7461 If MOUSE is non-zero, use the character's mouse-face, not its face.
7463 The face returned is suitable for displaying ASCII characters. */
7466 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7467 endptr
, limit
, mouse
)
7470 int region_beg
, region_end
;
7475 struct frame
*f
= XFRAME (w
->frame
);
7476 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7477 Lisp_Object prop
, position
;
7479 Lisp_Object
*overlay_vec
;
7482 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7483 Lisp_Object limit1
, end
;
7484 struct face
*default_face
;
7486 /* W must display the current buffer. We could write this function
7487 to use the frame and buffer of W, but right now it doesn't. */
7488 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7490 XSETFRAME (frame
, f
);
7491 XSETFASTINT (position
, pos
);
7494 if (pos
< region_beg
&& region_beg
< endpos
)
7495 endpos
= region_beg
;
7497 /* Get the `face' or `mouse_face' text property at POS, and
7498 determine the next position at which the property changes. */
7499 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7500 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7501 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7503 endpos
= XINT (end
);
7505 /* Look at properties from overlays. */
7509 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7510 if (next_overlay
< endpos
)
7511 endpos
= next_overlay
;
7516 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7518 /* Optimize common cases where we can use the default face. */
7521 && !(pos
>= region_beg
&& pos
< region_end
))
7522 return DEFAULT_FACE_ID
;
7524 /* Begin with attributes from the default face. */
7525 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7527 /* Merge in attributes specified via text properties. */
7529 merge_face_ref (f
, prop
, attrs
, 1, 0);
7531 /* Now merge the overlay data. */
7532 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7533 for (i
= 0; i
< noverlays
; i
++)
7538 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7540 merge_face_ref (f
, prop
, attrs
, 1, 0);
7542 oend
= OVERLAY_END (overlay_vec
[i
]);
7543 oendpos
= OVERLAY_POSITION (oend
);
7544 if (oendpos
< endpos
)
7548 /* If in the region, merge in the region face. */
7549 if (pos
>= region_beg
&& pos
< region_end
)
7551 merge_named_face (f
, Qregion
, attrs
, 0);
7553 if (region_end
< endpos
)
7554 endpos
= region_end
;
7559 /* Look up a realized face with the given face attributes,
7560 or realize a new one for ASCII characters. */
7561 return lookup_face (f
, attrs
, 0, NULL
);
7565 /* Compute the face at character position POS in Lisp string STRING on
7566 window W, for ASCII characters.
7568 If STRING is an overlay string, it comes from position BUFPOS in
7569 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7570 not an overlay string. W must display the current buffer.
7571 REGION_BEG and REGION_END give the start and end positions of the
7572 region; both are -1 if no region is visible.
7574 BASE_FACE_ID is the id of a face to merge with. For strings coming
7575 from overlays or the `display' property it is the face at BUFPOS.
7577 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7579 Set *ENDPTR to the next position where to check for faces in
7580 STRING; -1 if the face is constant from POS to the end of the
7583 Value is the id of the face to use. The face returned is suitable
7584 for displaying ASCII characters. */
7587 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7588 region_end
, endptr
, base_face_id
, mouse_p
)
7592 int region_beg
, region_end
;
7594 enum face_id base_face_id
;
7597 Lisp_Object prop
, position
, end
, limit
;
7598 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7599 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7600 struct face
*base_face
;
7601 int multibyte_p
= STRING_MULTIBYTE (string
);
7602 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7604 /* Get the value of the face property at the current position within
7605 STRING. Value is nil if there is no face property. */
7606 XSETFASTINT (position
, pos
);
7607 prop
= Fget_text_property (position
, prop_name
, string
);
7609 /* Get the next position at which to check for faces. Value of end
7610 is nil if face is constant all the way to the end of the string.
7611 Otherwise it is a string position where to check faces next.
7612 Limit is the maximum position up to which to check for property
7613 changes in Fnext_single_property_change. Strings are usually
7614 short, so set the limit to the end of the string. */
7615 XSETFASTINT (limit
, SCHARS (string
));
7616 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7618 *endptr
= XFASTINT (end
);
7622 base_face
= FACE_FROM_ID (f
, base_face_id
);
7623 xassert (base_face
);
7625 /* Optimize the default case that there is no face property and we
7626 are not in the region. */
7628 && (base_face_id
!= DEFAULT_FACE_ID
7629 /* BUFPOS <= 0 means STRING is not an overlay string, so
7630 that the region doesn't have to be taken into account. */
7632 || bufpos
< region_beg
7633 || bufpos
>= region_end
)
7635 /* We can't realize faces for different charsets differently
7636 if we don't have fonts, so we can stop here if not working
7637 on a window-system frame. */
7638 || !FRAME_WINDOW_P (f
)
7639 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7640 return base_face
->id
;
7642 /* Begin with attributes from the base face. */
7643 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7645 /* Merge in attributes specified via text properties. */
7647 merge_face_ref (f
, prop
, attrs
, 1, 0);
7649 /* If in the region, merge in the region face. */
7651 && bufpos
>= region_beg
7652 && bufpos
< region_end
)
7653 merge_named_face (f
, Qregion
, attrs
, 0);
7655 /* Look up a realized face with the given face attributes,
7656 or realize a new one for ASCII characters. */
7657 return lookup_face (f
, attrs
, 0, NULL
);
7662 /***********************************************************************
7664 ***********************************************************************/
7668 /* Print the contents of the realized face FACE to stderr. */
7671 dump_realized_face (face
)
7674 fprintf (stderr
, "ID: %d\n", face
->id
);
7675 #ifdef HAVE_X_WINDOWS
7676 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
7678 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7680 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7681 fprintf (stderr
, "background: 0x%lx (%s)\n",
7683 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7684 fprintf (stderr
, "font_name: %s (%s)\n",
7686 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7687 #ifdef HAVE_X_WINDOWS
7688 fprintf (stderr
, "font = %p\n", face
->font
);
7690 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7691 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7692 fprintf (stderr
, "underline: %d (%s)\n",
7694 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7695 fprintf (stderr
, "hash: %d\n", face
->hash
);
7696 fprintf (stderr
, "charset: %d\n", face
->charset
);
7700 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7708 fprintf (stderr
, "font selection order: ");
7709 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7710 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7711 fprintf (stderr
, "\n");
7713 fprintf (stderr
, "alternative fonts: ");
7714 debug_print (Vface_alternative_font_family_alist
);
7715 fprintf (stderr
, "\n");
7717 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7718 Fdump_face (make_number (i
));
7724 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7726 error ("Not a valid face");
7727 dump_realized_face (face
);
7734 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7735 0, 0, 0, doc
: /* */)
7738 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7739 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7740 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7744 #endif /* GLYPH_DEBUG != 0 */
7748 /***********************************************************************
7750 ***********************************************************************/
7755 Qface
= intern ("face");
7757 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7758 staticpro (&Qbitmap_spec_p
);
7759 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7760 staticpro (&Qframe_update_face_colors
);
7762 /* Lisp face attribute keywords. */
7763 QCfamily
= intern (":family");
7764 staticpro (&QCfamily
);
7765 QCheight
= intern (":height");
7766 staticpro (&QCheight
);
7767 QCweight
= intern (":weight");
7768 staticpro (&QCweight
);
7769 QCslant
= intern (":slant");
7770 staticpro (&QCslant
);
7771 QCunderline
= intern (":underline");
7772 staticpro (&QCunderline
);
7773 QCinverse_video
= intern (":inverse-video");
7774 staticpro (&QCinverse_video
);
7775 QCreverse_video
= intern (":reverse-video");
7776 staticpro (&QCreverse_video
);
7777 QCforeground
= intern (":foreground");
7778 staticpro (&QCforeground
);
7779 QCbackground
= intern (":background");
7780 staticpro (&QCbackground
);
7781 QCstipple
= intern (":stipple");;
7782 staticpro (&QCstipple
);
7783 QCwidth
= intern (":width");
7784 staticpro (&QCwidth
);
7785 QCfont
= intern (":font");
7786 staticpro (&QCfont
);
7787 QCbold
= intern (":bold");
7788 staticpro (&QCbold
);
7789 QCitalic
= intern (":italic");
7790 staticpro (&QCitalic
);
7791 QCoverline
= intern (":overline");
7792 staticpro (&QCoverline
);
7793 QCstrike_through
= intern (":strike-through");
7794 staticpro (&QCstrike_through
);
7795 QCbox
= intern (":box");
7797 QCinherit
= intern (":inherit");
7798 staticpro (&QCinherit
);
7800 /* Symbols used for Lisp face attribute values. */
7801 QCcolor
= intern (":color");
7802 staticpro (&QCcolor
);
7803 QCline_width
= intern (":line-width");
7804 staticpro (&QCline_width
);
7805 QCstyle
= intern (":style");
7806 staticpro (&QCstyle
);
7807 Qreleased_button
= intern ("released-button");
7808 staticpro (&Qreleased_button
);
7809 Qpressed_button
= intern ("pressed-button");
7810 staticpro (&Qpressed_button
);
7811 Qnormal
= intern ("normal");
7812 staticpro (&Qnormal
);
7813 Qultra_light
= intern ("ultra-light");
7814 staticpro (&Qultra_light
);
7815 Qextra_light
= intern ("extra-light");
7816 staticpro (&Qextra_light
);
7817 Qlight
= intern ("light");
7818 staticpro (&Qlight
);
7819 Qsemi_light
= intern ("semi-light");
7820 staticpro (&Qsemi_light
);
7821 Qsemi_bold
= intern ("semi-bold");
7822 staticpro (&Qsemi_bold
);
7823 Qbold
= intern ("bold");
7825 Qextra_bold
= intern ("extra-bold");
7826 staticpro (&Qextra_bold
);
7827 Qultra_bold
= intern ("ultra-bold");
7828 staticpro (&Qultra_bold
);
7829 Qoblique
= intern ("oblique");
7830 staticpro (&Qoblique
);
7831 Qitalic
= intern ("italic");
7832 staticpro (&Qitalic
);
7833 Qreverse_oblique
= intern ("reverse-oblique");
7834 staticpro (&Qreverse_oblique
);
7835 Qreverse_italic
= intern ("reverse-italic");
7836 staticpro (&Qreverse_italic
);
7837 Qultra_condensed
= intern ("ultra-condensed");
7838 staticpro (&Qultra_condensed
);
7839 Qextra_condensed
= intern ("extra-condensed");
7840 staticpro (&Qextra_condensed
);
7841 Qcondensed
= intern ("condensed");
7842 staticpro (&Qcondensed
);
7843 Qsemi_condensed
= intern ("semi-condensed");
7844 staticpro (&Qsemi_condensed
);
7845 Qsemi_expanded
= intern ("semi-expanded");
7846 staticpro (&Qsemi_expanded
);
7847 Qexpanded
= intern ("expanded");
7848 staticpro (&Qexpanded
);
7849 Qextra_expanded
= intern ("extra-expanded");
7850 staticpro (&Qextra_expanded
);
7851 Qultra_expanded
= intern ("ultra-expanded");
7852 staticpro (&Qultra_expanded
);
7853 Qbackground_color
= intern ("background-color");
7854 staticpro (&Qbackground_color
);
7855 Qforeground_color
= intern ("foreground-color");
7856 staticpro (&Qforeground_color
);
7857 Qunspecified
= intern ("unspecified");
7858 staticpro (&Qunspecified
);
7860 Qface_alias
= intern ("face-alias");
7861 staticpro (&Qface_alias
);
7862 Qdefault
= intern ("default");
7863 staticpro (&Qdefault
);
7864 Qtool_bar
= intern ("tool-bar");
7865 staticpro (&Qtool_bar
);
7866 Qregion
= intern ("region");
7867 staticpro (&Qregion
);
7868 Qfringe
= intern ("fringe");
7869 staticpro (&Qfringe
);
7870 Qheader_line
= intern ("header-line");
7871 staticpro (&Qheader_line
);
7872 Qscroll_bar
= intern ("scroll-bar");
7873 staticpro (&Qscroll_bar
);
7874 Qmenu
= intern ("menu");
7876 Qcursor
= intern ("cursor");
7877 staticpro (&Qcursor
);
7878 Qborder
= intern ("border");
7879 staticpro (&Qborder
);
7880 Qmouse
= intern ("mouse");
7881 staticpro (&Qmouse
);
7882 Qmode_line_inactive
= intern ("mode-line-inactive");
7883 staticpro (&Qmode_line_inactive
);
7884 Qtty_color_desc
= intern ("tty-color-desc");
7885 staticpro (&Qtty_color_desc
);
7886 Qtty_color_standard_values
= intern ("tty-color-standard-values");
7887 staticpro (&Qtty_color_standard_values
);
7888 Qtty_color_by_index
= intern ("tty-color-by-index");
7889 staticpro (&Qtty_color_by_index
);
7890 Qtty_color_alist
= intern ("tty-color-alist");
7891 staticpro (&Qtty_color_alist
);
7892 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7893 staticpro (&Qscalable_fonts_allowed
);
7895 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7896 staticpro (&Vparam_value_alist
);
7897 Vface_alternative_font_family_alist
= Qnil
;
7898 staticpro (&Vface_alternative_font_family_alist
);
7899 Vface_alternative_font_registry_alist
= Qnil
;
7900 staticpro (&Vface_alternative_font_registry_alist
);
7902 defsubr (&Sinternal_make_lisp_face
);
7903 defsubr (&Sinternal_lisp_face_p
);
7904 defsubr (&Sinternal_set_lisp_face_attribute
);
7905 #ifdef HAVE_WINDOW_SYSTEM
7906 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7908 defsubr (&Scolor_gray_p
);
7909 defsubr (&Scolor_supported_p
);
7910 defsubr (&Sface_attribute_relative_p
);
7911 defsubr (&Smerge_face_attribute
);
7912 defsubr (&Sinternal_get_lisp_face_attribute
);
7913 defsubr (&Sinternal_lisp_face_attribute_values
);
7914 defsubr (&Sinternal_lisp_face_equal_p
);
7915 defsubr (&Sinternal_lisp_face_empty_p
);
7916 defsubr (&Sinternal_copy_lisp_face
);
7917 defsubr (&Sinternal_merge_in_global_face
);
7918 defsubr (&Sface_font
);
7919 defsubr (&Sframe_face_alist
);
7920 defsubr (&Sdisplay_supports_face_attributes_p
);
7921 defsubr (&Scolor_distance
);
7922 defsubr (&Sinternal_set_font_selection_order
);
7923 defsubr (&Sinternal_set_alternative_font_family_alist
);
7924 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7925 defsubr (&Sface_attributes_as_vector
);
7927 defsubr (&Sdump_face
);
7928 defsubr (&Sshow_face_resources
);
7929 #endif /* GLYPH_DEBUG */
7930 defsubr (&Sclear_face_cache
);
7931 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7933 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7934 defsubr (&Sdump_colors
);
7937 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7938 doc
: /* *Limit for font matching.
7939 If an integer > 0, font matching functions won't load more than
7940 that number of fonts when searching for a matching font. */);
7941 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7943 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7944 doc
: /* List of global face definitions (for internal use only.) */);
7945 Vface_new_frame_defaults
= Qnil
;
7947 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7948 doc
: /* *Default stipple pattern used on monochrome displays.
7949 This stipple pattern is used on monochrome displays
7950 instead of shades of gray for a face background color.
7951 See `set-face-stipple' for possible values for this variable. */);
7952 Vface_default_stipple
= build_string ("gray3");
7954 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7955 doc
: /* An alist of defined terminal colors and their RGB values. */);
7956 Vtty_defined_color_alist
= Qnil
;
7958 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7959 doc
: /* Allowed scalable fonts.
7960 A value of nil means don't allow any scalable fonts.
7961 A value of t means allow any scalable font.
7962 Otherwise, value must be a list of regular expressions. A font may be
7963 scaled if its name matches a regular expression in the list.
7964 Note that if value is nil, a scalable font might still be used, if no
7965 other font of the appropriate family and registry is available. */);
7966 Vscalable_fonts_allowed
= Qnil
;
7968 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7969 doc
: /* List of ignored fonts.
7970 Each element is a regular expression that matches names of fonts to
7972 Vface_ignored_fonts
= Qnil
;
7974 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
7975 doc
: /* Alist of fonts vs the rescaling factors.
7976 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
7977 FONT-NAME-PATTERN is a regular expression matching a font name, and
7978 RESCALE-RATIO is a floating point number to specify how much larger
7979 \(or smaller) font we should use. For instance, if a face requests
7980 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
7981 Vface_font_rescale_alist
= Qnil
;
7983 #ifdef HAVE_WINDOW_SYSTEM
7984 defsubr (&Sbitmap_spec_p
);
7985 defsubr (&Sx_list_fonts
);
7986 defsubr (&Sinternal_face_x_get_resource
);
7987 defsubr (&Sx_family_fonts
);
7988 defsubr (&Sx_font_family_list
);
7989 #endif /* HAVE_WINDOW_SYSTEM */
7992 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
7993 (do not change this comment) */