1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005, 2006, 2007 Free Software Foundation, Inc.
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 3, 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., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
22 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
26 When using Emacs with X, the display style of characters can be
27 changed by defining `faces'. Each face can specify the following
32 2. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 3. Font height in 1/10pt.
37 4. Font weight, e.g. `bold'.
39 5. Font slant, e.g. `italic'.
45 8. Whether or not characters should be underlined, and in what color.
47 9. Whether or not characters should be displayed in inverse video.
49 10. A background stipple, a bitmap.
51 11. Whether or not characters should be overlined, and in what color.
53 12. Whether or not characters should be strike-through, and in what
56 13. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 14. Font or fontset pattern, or nil. This is a special attribute.
60 When this attribute is specified, the face uses a font opened by
61 that pattern as is. In addition, all the other font-related
62 attributes (1st thru 5th) are generated from the opened font name.
63 On the other hand, if one of the other font-related attributes are
64 specified, this attribute is set to nil. In that case, the face
65 doesn't inherit this attribute from the `default' face, and uses a
66 font determined by the other attributes (those may be inherited
67 from the `default' face).
69 15. A face name or list of face names from which to inherit attributes.
71 16. A specified average font width, which is invisible from Lisp,
72 and is used to ensure that a font specified on the command line,
73 for example, can be matched exactly.
75 Faces are frame-local by nature because Emacs allows to define the
76 same named face (face names are symbols) differently for different
77 frames. Each frame has an alist of face definitions for all named
78 faces. The value of a named face in such an alist is a Lisp vector
79 with the symbol `face' in slot 0, and a slot for each of the face
80 attributes mentioned above.
82 There is also a global face alist `Vface_new_frame_defaults'. Face
83 definitions from this list are used to initialize faces of newly
86 A face doesn't have to specify all attributes. Those not specified
87 have a value of `unspecified'. Faces specifying all attributes but
88 the 14th are called `fully-specified'.
93 The display style of a given character in the text is determined by
94 combining several faces. This process is called `face merging'.
95 Any aspect of the display style that isn't specified by overlays or
96 text properties is taken from the `default' face. Since it is made
97 sure that the default face is always fully-specified, face merging
98 always results in a fully-specified face.
103 After all face attributes for a character have been determined by
104 merging faces of that character, that face is `realized'. The
105 realization process maps face attributes to what is physically
106 available on the system where Emacs runs. The result is a
107 `realized face' in form of a struct face which is stored in the
108 face cache of the frame on which it was realized.
110 Face realization is done in the context of the character to display
111 because different fonts may be used for different characters. In
112 other words, for characters that have different font
113 specifications, different realized faces are needed to display
116 Font specification is done by fontsets. See the comment in
117 fontset.c for the details. In the current implementation, all ASCII
118 characters share the same font in a fontset.
120 Faces are at first realized for ASCII characters, and, at that
121 time, assigned a specific realized fontset. Hereafter, we call
122 such a face as `ASCII face'. When a face for a multibyte character
123 is realized, it inherits (thus shares) a fontset of an ASCII face
124 that has the same attributes other than font-related ones.
126 Thus, all realized face have a realized fontset.
131 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
132 font as ASCII characters. That is because it is expected that
133 unibyte text users specify a font that is suitable both for ASCII
134 and raw 8-bit characters.
139 Font selection tries to find the best available matching font for a
140 given (character, face) combination.
142 If the face specifies a fontset name, that fontset determines a
143 pattern for fonts of the given character. If the face specifies a
144 font name or the other font-related attributes, a fontset is
145 realized from the default fontset. In that case, that
146 specification determines a pattern for ASCII characters and the
147 default fontset determines a pattern for multibyte characters.
149 Available fonts on the system on which Emacs runs are then matched
150 against the font pattern. The result of font selection is the best
151 match for the given face attributes in this font list.
153 Font selection can be influenced by the user.
155 1. The user can specify the relative importance he gives the face
156 attributes width, height, weight, and slant by setting
157 face-font-selection-order (faces.el) to a list of face attribute
158 names. The default is '(:width :height :weight :slant), and means
159 that font selection first tries to find a good match for the font
160 width specified by a face, then---within fonts with that
161 width---tries to find a best match for the specified font height,
164 2. Setting face-font-family-alternatives allows the user to
165 specify alternative font families to try if a family specified by a
168 3. Setting face-font-registry-alternatives allows the user to
169 specify all alternative font registries to try for a face
170 specifying a registry.
172 4. Setting face-ignored-fonts allows the user to ignore specific
176 Character composition.
178 Usually, the realization process is already finished when Emacs
179 actually reflects the desired glyph matrix on the screen. However,
180 on displaying a composition (sequence of characters to be composed
181 on the screen), a suitable font for the components of the
182 composition is selected and realized while drawing them on the
183 screen, i.e. the realization process is delayed but in principle
187 Initialization of basic faces.
189 The faces `default', `modeline' are considered `basic faces'.
190 When redisplay happens the first time for a newly created frame,
191 basic faces are realized for CHARSET_ASCII. Frame parameters are
192 used to fill in unspecified attributes of the default face. */
196 #include <sys/types.h>
197 #include <sys/stat.h>
198 #include <stdio.h> /* This needs to be before termchar.h */
202 #include "keyboard.h"
204 #include "termhooks.h"
206 #ifdef HAVE_WINDOW_SYSTEM
208 #endif /* HAVE_WINDOW_SYSTEM */
210 #ifdef HAVE_X_WINDOWS
214 #include <Xm/XmStrDefs.h>
215 #endif /* USE_MOTIF */
216 #endif /* HAVE_X_WINDOWS */
225 /* Redefine X specifics to W32 equivalents to avoid cluttering the
226 code with #ifdef blocks. */
227 #undef FRAME_X_DISPLAY_INFO
228 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
229 #define x_display_info w32_display_info
230 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
231 #define check_x check_w32
232 #define x_list_fonts w32_list_fonts
233 #define GCGraphicsExposures 0
234 #endif /* WINDOWSNT */
238 #define x_display_info mac_display_info
239 #define check_x check_mac
243 #include "dispextern.h"
244 #include "blockinput.h"
246 #include "intervals.h"
247 #include "termchar.h"
249 #ifdef HAVE_X_WINDOWS
251 /* Compensate for a bug in Xos.h on some systems, on which it requires
252 time.h. On some such systems, Xos.h tries to redefine struct
253 timeval and struct timezone if USG is #defined while it is
256 #ifdef XOS_NEEDS_TIME_H
262 #else /* not XOS_NEEDS_TIME_H */
264 #endif /* not XOS_NEEDS_TIME_H */
266 #endif /* HAVE_X_WINDOWS */
270 #define abs(X) ((X) < 0 ? -(X) : (X))
272 /* Number of pt per inch (from the TeXbook). */
274 #define PT_PER_INCH 72.27
276 /* Non-zero if face attribute ATTR is unspecified. */
278 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
280 /* Non-zero if face attribute ATTR is `ignore-defface'. */
282 #define IGNORE_DEFFACE_P(ATTR) EQ ((ATTR), Qignore_defface)
284 /* Value is the number of elements of VECTOR. */
286 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
288 /* Make a copy of string S on the stack using alloca. Value is a pointer
291 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
293 /* Make a copy of the contents of Lisp string S on the stack using
294 alloca. Value is a pointer to the copy. */
296 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
298 /* Size of hash table of realized faces in face caches (should be a
301 #define FACE_CACHE_BUCKETS_SIZE 1001
303 /* Keyword symbols used for face attribute names. */
305 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
306 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
307 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
308 Lisp_Object QCreverse_video
;
309 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
311 /* Symbols used for attribute values. */
313 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
314 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
315 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
316 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
317 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
318 Lisp_Object Qultra_expanded
;
319 Lisp_Object Qreleased_button
, Qpressed_button
;
320 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
321 Lisp_Object Qunspecified
;
322 Lisp_Object Qignore_defface
;
324 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
326 /* The name of the function to call when the background of the frame
327 has changed, frame_set_background_mode. */
329 Lisp_Object Qframe_set_background_mode
;
331 /* Names of basic faces. */
333 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
334 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
335 Lisp_Object Qmode_line_inactive
, Qvertical_border
;
336 extern Lisp_Object Qmode_line
;
338 /* The symbol `face-alias'. A symbols having that property is an
339 alias for another face. Value of the property is the name of
342 Lisp_Object Qface_alias
;
344 extern Lisp_Object Qcircular_list
;
346 /* Default stipple pattern used on monochrome displays. This stipple
347 pattern is used on monochrome displays instead of shades of gray
348 for a face background color. See `set-face-stipple' for possible
349 values for this variable. */
351 Lisp_Object Vface_default_stipple
;
353 /* Alist of alternative font families. Each element is of the form
354 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
355 try FAMILY1, then FAMILY2, ... */
357 Lisp_Object Vface_alternative_font_family_alist
;
359 /* Alist of alternative font registries. Each element is of the form
360 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
361 loaded, try REGISTRY1, then REGISTRY2, ... */
363 Lisp_Object Vface_alternative_font_registry_alist
;
365 /* Allowed scalable fonts. A value of nil means don't allow any
366 scalable fonts. A value of t means allow the use of any scalable
367 font. Otherwise, value must be a list of regular expressions. A
368 font may be scaled if its name matches a regular expression in the
371 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
373 /* List of regular expressions that matches names of fonts to ignore. */
375 Lisp_Object Vface_ignored_fonts
;
377 /* Alist of font name patterns vs the rescaling factor. */
379 Lisp_Object Vface_font_rescale_alist
;
381 /* Maximum number of fonts to consider in font_list. If not an
382 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
384 Lisp_Object Vfont_list_limit
;
385 #define DEFAULT_FONT_LIST_LIMIT 100
387 /* The symbols `foreground-color' and `background-color' which can be
388 used as part of a `face' property. This is for compatibility with
391 Lisp_Object Qforeground_color
, Qbackground_color
;
393 /* The symbols `face' and `mouse-face' used as text properties. */
396 extern Lisp_Object Qmouse_face
;
398 /* Property for basic faces which other faces cannot inherit. */
400 Lisp_Object Qface_no_inherit
;
402 /* Error symbol for wrong_type_argument in load_pixmap. */
404 Lisp_Object Qbitmap_spec_p
;
406 /* Alist of global face definitions. Each element is of the form
407 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
408 is a Lisp vector of face attributes. These faces are used
409 to initialize faces for new frames. */
411 Lisp_Object Vface_new_frame_defaults
;
413 /* The next ID to assign to Lisp faces. */
415 static int next_lface_id
;
417 /* A vector mapping Lisp face Id's to face names. */
419 static Lisp_Object
*lface_id_to_name
;
420 static int lface_id_to_name_size
;
422 /* TTY color-related functions (defined in tty-colors.el). */
424 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
426 /* The name of the function used to compute colors on TTYs. */
428 Lisp_Object Qtty_color_alist
;
430 /* An alist of defined terminal colors and their RGB values. */
432 Lisp_Object Vtty_defined_color_alist
;
434 /* Counter for calls to clear_face_cache. If this counter reaches
435 CLEAR_FONT_TABLE_COUNT, and a frame has more than
436 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
438 static int clear_font_table_count
;
439 #define CLEAR_FONT_TABLE_COUNT 100
440 #define CLEAR_FONT_TABLE_NFONTS 10
442 /* Non-zero means face attributes have been changed since the last
443 redisplay. Used in redisplay_internal. */
445 int face_change_count
;
447 /* Non-zero means don't display bold text if a face's foreground
448 and background colors are the inverse of the default colors of the
449 display. This is a kluge to suppress `bold black' foreground text
450 which is hard to read on an LCD monitor. */
452 int tty_suppress_bold_inverse_default_colors_p
;
454 /* A list of the form `((x . y))' used to avoid consing in
455 Finternal_set_lisp_face_attribute. */
457 static Lisp_Object Vparam_value_alist
;
459 /* The total number of colors currently allocated. */
462 static int ncolors_allocated
;
463 static int npixmaps_allocated
;
467 /* Non-zero means the definition of the `menu' face for new frames has
470 int menu_face_changed_default
;
473 /* Function prototypes. */
477 struct named_merge_point
;
479 static void map_tty_color
P_ ((struct frame
*, struct face
*,
480 enum lface_attribute_index
, int *));
481 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
, int));
482 static int may_use_scalable_font_p
P_ ((const char *));
483 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
484 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
486 static int x_face_list_fonts
P_ ((struct frame
*, char *,
487 struct font_name
**, int, int));
488 static int font_scalable_p
P_ ((struct font_name
*));
489 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
490 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
491 static unsigned char *xstrlwr
P_ ((unsigned char *));
492 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
493 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
494 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
495 static void free_face_colors
P_ ((struct frame
*, struct face
*));
496 static int face_color_gray_p
P_ ((struct frame
*, char *));
497 static char *build_font_name
P_ ((struct font_name
*));
498 static void free_font_names
P_ ((struct font_name
*, int));
499 static int sorted_font_list
P_ ((struct frame
*, char *,
500 int (*cmpfn
) P_ ((const void *, const void *)),
501 struct font_name
**));
502 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
503 Lisp_Object
, struct font_name
**));
504 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
505 Lisp_Object
, struct font_name
**));
506 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
507 Lisp_Object
, Lisp_Object
, struct font_name
**,
509 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
510 Lisp_Object
, struct font_name
**));
511 static int cmp_font_names
P_ ((const void *, const void *));
512 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
513 struct face
*, int));
514 static struct face
*realize_x_face
P_ ((struct face_cache
*,
515 Lisp_Object
*, int, struct face
*));
516 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
517 Lisp_Object
*, int));
518 static int realize_basic_faces
P_ ((struct frame
*));
519 static int realize_default_face
P_ ((struct frame
*));
520 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
521 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
522 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
523 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
524 static unsigned lface_hash
P_ ((Lisp_Object
*));
525 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
526 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
527 static void free_realized_face
P_ ((struct frame
*, struct face
*));
528 static void clear_face_gcs
P_ ((struct face_cache
*));
529 static void free_face_cache
P_ ((struct face_cache
*));
530 static int face_numeric_weight
P_ ((Lisp_Object
));
531 static int face_numeric_slant
P_ ((Lisp_Object
));
532 static int face_numeric_swidth
P_ ((Lisp_Object
));
533 static int face_fontset
P_ ((Lisp_Object
*));
534 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int, int*));
535 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
536 struct named_merge_point
*));
537 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
538 int, struct named_merge_point
*));
539 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
540 Lisp_Object
, int, int));
541 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
542 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
543 static void free_realized_faces
P_ ((struct face_cache
*));
544 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
545 struct font_name
*, int, int, int *));
546 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
547 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
548 static int xlfd_numeric_slant
P_ ((struct font_name
*));
549 static int xlfd_numeric_weight
P_ ((struct font_name
*));
550 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
551 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
552 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
553 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
554 static int xlfd_fixed_p
P_ ((struct font_name
*));
555 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
557 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
558 struct font_name
*, int,
560 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
561 struct font_name
*, int));
563 #ifdef HAVE_WINDOW_SYSTEM
565 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
566 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
567 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
568 int (*cmpfn
) P_ ((const void *, const void *))));
569 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
570 static void x_free_gc
P_ ((struct frame
*, GC
));
571 static void clear_font_table
P_ ((struct x_display_info
*));
574 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
575 #endif /* WINDOWSNT */
578 static void x_update_menu_appearance
P_ ((struct frame
*));
580 extern void free_frame_menubar
P_ ((struct frame
*));
581 #endif /* USE_X_TOOLKIT */
583 #endif /* HAVE_WINDOW_SYSTEM */
586 /***********************************************************************
588 ***********************************************************************/
590 #ifdef HAVE_X_WINDOWS
592 #ifdef DEBUG_X_COLORS
594 /* The following is a poor mans infrastructure for debugging X color
595 allocation problems on displays with PseudoColor-8. Some X servers
596 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
597 color reference counts completely so that they don't signal an
598 error when a color is freed whose reference count is already 0.
599 Other X servers do. To help me debug this, the following code
600 implements a simple reference counting schema of its own, for a
601 single display/screen. --gerd. */
603 /* Reference counts for pixel colors. */
605 int color_count
[256];
607 /* Register color PIXEL as allocated. */
610 register_color (pixel
)
613 xassert (pixel
< 256);
614 ++color_count
[pixel
];
618 /* Register color PIXEL as deallocated. */
621 unregister_color (pixel
)
624 xassert (pixel
< 256);
625 if (color_count
[pixel
] > 0)
626 --color_count
[pixel
];
632 /* Register N colors from PIXELS as deallocated. */
635 unregister_colors (pixels
, n
)
636 unsigned long *pixels
;
640 for (i
= 0; i
< n
; ++i
)
641 unregister_color (pixels
[i
]);
645 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
646 doc
: /* Dump currently allocated colors to stderr. */)
651 fputc ('\n', stderr
);
653 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
656 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
659 fputc ('\n', stderr
);
661 fputc ('\t', stderr
);
665 fputc ('\n', stderr
);
669 #endif /* DEBUG_X_COLORS */
672 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
673 color values. Interrupt input must be blocked when this function
677 x_free_colors (f
, pixels
, npixels
)
679 unsigned long *pixels
;
682 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
684 /* If display has an immutable color map, freeing colors is not
685 necessary and some servers don't allow it. So don't do it. */
686 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
688 #ifdef DEBUG_X_COLORS
689 unregister_colors (pixels
, npixels
);
691 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
697 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
698 color values. Interrupt input must be blocked when this function
702 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
706 unsigned long *pixels
;
709 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
710 int class = dpyinfo
->visual
->class;
712 /* If display has an immutable color map, freeing colors is not
713 necessary and some servers don't allow it. So don't do it. */
714 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
716 #ifdef DEBUG_X_COLORS
717 unregister_colors (pixels
, npixels
);
719 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
724 /* Create and return a GC for use on frame F. GC values and mask
725 are given by XGCV and MASK. */
728 x_create_gc (f
, mask
, xgcv
)
735 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
742 /* Free GC which was used on frame F. */
750 IF_DEBUG (xassert (--ngcs
>= 0));
751 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
755 #endif /* HAVE_X_WINDOWS */
758 /* W32 emulation of GCs */
761 x_create_gc (f
, mask
, xgcv
)
768 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
775 /* Free GC which was used on frame F. */
783 IF_DEBUG (xassert (--ngcs
>= 0));
788 #endif /* WINDOWSNT */
791 /* Mac OS emulation of GCs */
794 x_create_gc (f
, mask
, xgcv
)
801 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
813 IF_DEBUG (xassert (--ngcs
>= 0));
814 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
820 /* Like stricmp. Used to compare parts of font names which are in
825 const unsigned char *s1
, *s2
;
829 unsigned char c1
= tolower (*s1
);
830 unsigned char c2
= tolower (*s2
);
832 return c1
< c2
? -1 : 1;
837 return *s2
== 0 ? 0 : -1;
842 /* Like strlwr, which might not always be available. */
844 static unsigned char *
848 unsigned char *p
= s
;
851 /* On Mac OS X 10.3, tolower also converts non-ASCII characters
860 /* If FRAME is nil, return a pointer to the selected frame.
861 Otherwise, check that FRAME is a live frame, and return a pointer
862 to it. NPARAM is the parameter number of FRAME, for
863 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
864 Lisp function definitions. */
866 static INLINE
struct frame
*
867 frame_or_selected_frame (frame
, nparam
)
872 frame
= selected_frame
;
874 CHECK_LIVE_FRAME (frame
);
875 return XFRAME (frame
);
879 /***********************************************************************
881 ***********************************************************************/
883 /* Initialize face cache and basic faces for frame F. */
889 /* Make a face cache, if F doesn't have one. */
890 if (FRAME_FACE_CACHE (f
) == NULL
)
891 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
893 #ifdef HAVE_WINDOW_SYSTEM
894 /* Make the image cache. */
895 if (FRAME_WINDOW_P (f
))
897 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
898 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
899 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
901 #endif /* HAVE_WINDOW_SYSTEM */
903 /* Realize basic faces. Must have enough information in frame
904 parameters to realize basic faces at this point. */
905 #ifdef HAVE_X_WINDOWS
906 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
909 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
912 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
914 if (!realize_basic_faces (f
))
919 /* Free face cache of frame F. Called from Fdelete_frame. */
925 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
929 free_face_cache (face_cache
);
930 FRAME_FACE_CACHE (f
) = NULL
;
933 #ifdef HAVE_WINDOW_SYSTEM
934 if (FRAME_WINDOW_P (f
))
936 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
939 --image_cache
->refcount
;
940 if (image_cache
->refcount
== 0)
941 free_image_cache (f
);
944 #endif /* HAVE_WINDOW_SYSTEM */
948 /* Clear face caches, and recompute basic faces for frame F. Call
949 this after changing frame parameters on which those faces depend,
950 or when realized faces have been freed due to changing attributes
954 recompute_basic_faces (f
)
957 if (FRAME_FACE_CACHE (f
))
959 clear_face_cache (0);
960 if (!realize_basic_faces (f
))
966 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
967 try to free unused fonts, too. */
970 clear_face_cache (clear_fonts_p
)
973 #ifdef HAVE_WINDOW_SYSTEM
974 Lisp_Object tail
, frame
;
978 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
980 struct x_display_info
*dpyinfo
;
982 /* Fonts are common for frames on one display, i.e. on
984 for (dpyinfo
= x_display_list
; dpyinfo
; dpyinfo
= dpyinfo
->next
)
985 if (dpyinfo
->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
986 clear_font_table (dpyinfo
);
988 /* From time to time see if we can unload some fonts. This also
989 frees all realized faces on all frames. Fonts needed by
990 faces will be loaded again when faces are realized again. */
991 clear_font_table_count
= 0;
993 FOR_EACH_FRAME (tail
, frame
)
995 struct frame
*f
= XFRAME (frame
);
996 if (FRAME_WINDOW_P (f
)
997 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
998 free_all_realized_faces (frame
);
1003 /* Clear GCs of realized faces. */
1004 FOR_EACH_FRAME (tail
, frame
)
1007 if (FRAME_WINDOW_P (f
))
1009 clear_face_gcs (FRAME_FACE_CACHE (f
));
1010 clear_image_cache (f
, 0);
1014 #endif /* HAVE_WINDOW_SYSTEM */
1018 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1019 doc
: /* Clear face caches on all frames.
1020 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
1022 Lisp_Object thoroughly
;
1024 clear_face_cache (!NILP (thoroughly
));
1025 ++face_change_count
;
1026 ++windows_or_buffers_changed
;
1032 #ifdef HAVE_WINDOW_SYSTEM
1035 /* Remove fonts from the font table of DPYINFO except for the default
1036 ASCII fonts of frames on that display. Called from clear_face_cache
1037 from time to time. */
1040 clear_font_table (dpyinfo
)
1041 struct x_display_info
*dpyinfo
;
1045 /* Free those fonts that are not used by frames on DPYINFO. */
1046 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1048 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1049 Lisp_Object tail
, frame
;
1051 /* Check if slot is already free. */
1052 if (font_info
->name
== NULL
)
1055 /* Don't free a default font of some frame. */
1056 FOR_EACH_FRAME (tail
, frame
)
1058 struct frame
*f
= XFRAME (frame
);
1059 if (FRAME_WINDOW_P (f
)
1060 && font_info
->font
== FRAME_FONT (f
))
1068 if (font_info
->full_name
!= font_info
->name
)
1069 xfree (font_info
->full_name
);
1070 xfree (font_info
->name
);
1072 /* Free the font. */
1074 #ifdef HAVE_X_WINDOWS
1075 XFreeFont (dpyinfo
->display
, font_info
->font
);
1078 w32_unload_font (dpyinfo
, font_info
->font
);
1081 mac_unload_font (dpyinfo
, font_info
->font
);
1085 /* Mark font table slot free. */
1086 font_info
->font
= NULL
;
1087 font_info
->name
= font_info
->full_name
= NULL
;
1091 #endif /* HAVE_WINDOW_SYSTEM */
1095 /***********************************************************************
1097 ***********************************************************************/
1099 #ifdef HAVE_WINDOW_SYSTEM
1101 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1102 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
1103 A bitmap specification is either a string, a file name, or a list
1104 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
1105 HEIGHT is its height, and DATA is a string containing the bits of
1106 the pixmap. Bits are stored row by row, each row occupies
1107 \(WIDTH + 7)/8 bytes. */)
1113 if (STRINGP (object
))
1114 /* If OBJECT is a string, it's a file name. */
1116 else if (CONSP (object
))
1118 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1119 HEIGHT must be integers > 0, and DATA must be string large
1120 enough to hold a bitmap of the specified size. */
1121 Lisp_Object width
, height
, data
;
1123 height
= width
= data
= Qnil
;
1127 width
= XCAR (object
);
1128 object
= XCDR (object
);
1131 height
= XCAR (object
);
1132 object
= XCDR (object
);
1134 data
= XCAR (object
);
1138 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1140 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1142 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1147 return pixmap_p
? Qt
: Qnil
;
1151 /* Load a bitmap according to NAME (which is either a file name or a
1152 pixmap spec) for use on frame F. Value is the bitmap_id (see
1153 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1154 bitmap cannot be loaded, display a message saying so, and return
1155 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1156 if these pointers are not null. */
1159 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1162 unsigned int *w_ptr
, *h_ptr
;
1169 CHECK_TYPE (!NILP (Fbitmap_spec_p (name
)), Qbitmap_spec_p
, name
);
1174 /* Decode a bitmap spec into a bitmap. */
1179 w
= XINT (Fcar (name
));
1180 h
= XINT (Fcar (Fcdr (name
)));
1181 bits
= Fcar (Fcdr (Fcdr (name
)));
1183 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1188 /* It must be a string -- a file name. */
1189 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1195 add_to_log ("Invalid or undefined bitmap `%s'", name
, Qnil
);
1206 ++npixmaps_allocated
;
1209 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1212 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1218 #endif /* HAVE_WINDOW_SYSTEM */
1222 /***********************************************************************
1224 ***********************************************************************/
1226 #ifdef HAVE_WINDOW_SYSTEM
1228 /* Load font of face FACE which is used on frame F to display
1229 character C. The name of the font to load is determined by lface
1230 and fontset of FACE. */
1233 load_face_font (f
, face
, c
)
1238 struct font_info
*font_info
= NULL
;
1240 int needs_overstrike
;
1242 face
->font_info_id
= -1;
1245 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
,
1251 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1256 face
->font_info_id
= font_info
->font_idx
;
1257 face
->font
= font_info
->font
;
1258 face
->font_name
= font_info
->full_name
;
1259 face
->overstrike
= needs_overstrike
;
1262 x_free_gc (f
, face
->gc
);
1267 add_to_log ("Unable to load font %s",
1268 build_string (font_name
), Qnil
);
1272 #endif /* HAVE_WINDOW_SYSTEM */
1276 /***********************************************************************
1278 ***********************************************************************/
1280 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1281 RGB_LIST should contain (at least) 3 lisp integers.
1282 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1285 parse_rgb_list (rgb_list
, color
)
1286 Lisp_Object rgb_list
;
1289 #define PARSE_RGB_LIST_FIELD(field) \
1290 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1292 color->field = XINT (XCAR (rgb_list)); \
1293 rgb_list = XCDR (rgb_list); \
1298 PARSE_RGB_LIST_FIELD (red
);
1299 PARSE_RGB_LIST_FIELD (green
);
1300 PARSE_RGB_LIST_FIELD (blue
);
1306 /* Lookup on frame F the color described by the lisp string COLOR.
1307 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1308 non-zero, then the `standard' definition of the same color is
1312 tty_lookup_color (f
, color
, tty_color
, std_color
)
1315 XColor
*tty_color
, *std_color
;
1317 Lisp_Object frame
, color_desc
;
1319 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1322 XSETFRAME (frame
, f
);
1324 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1325 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1329 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1332 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1334 rgb
= XCDR (XCDR (color_desc
));
1335 if (! parse_rgb_list (rgb
, tty_color
))
1338 /* Should we fill in STD_COLOR too? */
1341 /* Default STD_COLOR to the same as TTY_COLOR. */
1342 *std_color
= *tty_color
;
1344 /* Do a quick check to see if the returned descriptor is
1345 actually _exactly_ equal to COLOR, otherwise we have to
1346 lookup STD_COLOR separately. If it's impossible to lookup
1347 a standard color, we just give up and use TTY_COLOR. */
1348 if ((!STRINGP (XCAR (color_desc
))
1349 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1350 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1352 /* Look up STD_COLOR separately. */
1353 rgb
= call1 (Qtty_color_standard_values
, color
);
1354 if (! parse_rgb_list (rgb
, std_color
))
1361 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1362 /* We were called early during startup, and the colors are not
1363 yet set up in tty-defined-color-alist. Don't return a failure
1364 indication, since this produces the annoying "Unable to
1365 load color" messages in the *Messages* buffer. */
1368 /* tty-color-desc seems to have returned a bad value. */
1372 /* A version of defined_color for non-X frames. */
1375 tty_defined_color (f
, color_name
, color_def
, alloc
)
1384 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1386 color_def
->blue
= 0;
1387 color_def
->green
= 0;
1390 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, 0);
1392 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1394 if (strcmp (color_name
, "unspecified-fg") == 0)
1395 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1396 else if (strcmp (color_name
, "unspecified-bg") == 0)
1397 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1400 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1407 /* Decide if color named COLOR_NAME is valid for the display
1408 associated with the frame F; if so, return the rgb values in
1409 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1411 This does the right thing for any type of frame. */
1414 defined_color (f
, color_name
, color_def
, alloc
)
1420 if (!FRAME_WINDOW_P (f
))
1421 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1422 #ifdef HAVE_X_WINDOWS
1423 else if (FRAME_X_P (f
))
1424 return x_defined_color (f
, color_name
, color_def
, alloc
);
1427 else if (FRAME_W32_P (f
))
1428 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1431 else if (FRAME_MAC_P (f
))
1432 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1439 /* Given the index IDX of a tty color on frame F, return its name, a
1443 tty_color_name (f
, idx
)
1447 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1450 Lisp_Object coldesc
;
1452 XSETFRAME (frame
, f
);
1453 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1455 if (!NILP (coldesc
))
1456 return XCAR (coldesc
);
1459 /* We can have an MSDOG frame under -nw for a short window of
1460 opportunity before internal_terminal_init is called. DTRT. */
1461 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1462 return msdos_stdcolor_name (idx
);
1465 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1466 return build_string (unspecified_fg
);
1467 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1468 return build_string (unspecified_bg
);
1471 return vga_stdcolor_name (idx
);
1474 return Qunspecified
;
1478 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1481 The criterion implemented here is not a terribly sophisticated one. */
1484 face_color_gray_p (f
, color_name
)
1491 if (defined_color (f
, color_name
, &color
, 0))
1492 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1493 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1495 ((abs (color
.red
- color
.green
)
1496 < max (color
.red
, color
.green
) / 20)
1497 && (abs (color
.green
- color
.blue
)
1498 < max (color
.green
, color
.blue
) / 20)
1499 && (abs (color
.blue
- color
.red
)
1500 < max (color
.blue
, color
.red
) / 20)));
1508 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1509 BACKGROUND_P non-zero means the color will be used as background
1513 face_color_supported_p (f
, color_name
, background_p
)
1521 XSETFRAME (frame
, f
);
1523 #ifdef HAVE_WINDOW_SYSTEM
1525 ? (!NILP (Fxw_display_color_p (frame
))
1526 || xstricmp (color_name
, "black") == 0
1527 || xstricmp (color_name
, "white") == 0
1529 && face_color_gray_p (f
, color_name
))
1530 || (!NILP (Fx_display_grayscale_p (frame
))
1531 && face_color_gray_p (f
, color_name
)))
1534 tty_defined_color (f
, color_name
, ¬_used
, 0);
1538 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1539 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1540 FRAME specifies the frame and thus the display for interpreting COLOR.
1541 If FRAME is nil or omitted, use the selected frame. */)
1543 Lisp_Object color
, frame
;
1547 CHECK_STRING (color
);
1549 frame
= selected_frame
;
1551 CHECK_FRAME (frame
);
1553 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1557 DEFUN ("color-supported-p", Fcolor_supported_p
,
1558 Scolor_supported_p
, 1, 3, 0,
1559 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1560 BACKGROUND-P non-nil means COLOR is used as a background.
1561 Otherwise, this function tells whether it can be used as a foreground.
1562 If FRAME is nil or omitted, use the selected frame.
1563 COLOR must be a valid color name. */)
1564 (color
, frame
, background_p
)
1565 Lisp_Object frame
, color
, background_p
;
1569 CHECK_STRING (color
);
1571 frame
= selected_frame
;
1573 CHECK_FRAME (frame
);
1575 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1581 /* Load color with name NAME for use by face FACE on frame F.
1582 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1583 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1584 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1585 pixel color. If color cannot be loaded, display a message, and
1586 return the foreground, background or underline color of F, but
1587 record that fact in flags of the face so that we don't try to free
1591 load_color (f
, face
, name
, target_index
)
1595 enum lface_attribute_index target_index
;
1599 xassert (STRINGP (name
));
1600 xassert (target_index
== LFACE_FOREGROUND_INDEX
1601 || target_index
== LFACE_BACKGROUND_INDEX
1602 || target_index
== LFACE_UNDERLINE_INDEX
1603 || target_index
== LFACE_OVERLINE_INDEX
1604 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1605 || target_index
== LFACE_BOX_INDEX
);
1607 /* if the color map is full, defined_color will return a best match
1608 to the values in an existing cell. */
1609 if (!defined_color (f
, SDATA (name
), &color
, 1))
1611 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1613 switch (target_index
)
1615 case LFACE_FOREGROUND_INDEX
:
1616 face
->foreground_defaulted_p
= 1;
1617 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1620 case LFACE_BACKGROUND_INDEX
:
1621 face
->background_defaulted_p
= 1;
1622 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1625 case LFACE_UNDERLINE_INDEX
:
1626 face
->underline_defaulted_p
= 1;
1627 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1630 case LFACE_OVERLINE_INDEX
:
1631 face
->overline_color_defaulted_p
= 1;
1632 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1635 case LFACE_STRIKE_THROUGH_INDEX
:
1636 face
->strike_through_color_defaulted_p
= 1;
1637 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1640 case LFACE_BOX_INDEX
:
1641 face
->box_color_defaulted_p
= 1;
1642 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1651 ++ncolors_allocated
;
1658 #ifdef HAVE_WINDOW_SYSTEM
1660 /* Load colors for face FACE which is used on frame F. Colors are
1661 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1662 of ATTRS. If the background color specified is not supported on F,
1663 try to emulate gray colors with a stipple from Vface_default_stipple. */
1666 load_face_colors (f
, face
, attrs
)
1673 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1674 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1676 /* Swap colors if face is inverse-video. */
1677 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1685 /* Check for support for foreground, not for background because
1686 face_color_supported_p is smart enough to know that grays are
1687 "supported" as background because we are supposed to use stipple
1689 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1690 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1692 x_destroy_bitmap (f
, face
->stipple
);
1693 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1694 &face
->pixmap_w
, &face
->pixmap_h
);
1697 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1698 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1702 /* Free color PIXEL on frame F. */
1705 unload_color (f
, pixel
)
1707 unsigned long pixel
;
1709 #ifdef HAVE_X_WINDOWS
1713 x_free_colors (f
, &pixel
, 1);
1720 /* Free colors allocated for FACE. */
1723 free_face_colors (f
, face
)
1727 #ifdef HAVE_X_WINDOWS
1728 if (face
->colors_copied_bitwise_p
)
1733 if (!face
->foreground_defaulted_p
)
1735 x_free_colors (f
, &face
->foreground
, 1);
1736 IF_DEBUG (--ncolors_allocated
);
1739 if (!face
->background_defaulted_p
)
1741 x_free_colors (f
, &face
->background
, 1);
1742 IF_DEBUG (--ncolors_allocated
);
1745 if (face
->underline_p
1746 && !face
->underline_defaulted_p
)
1748 x_free_colors (f
, &face
->underline_color
, 1);
1749 IF_DEBUG (--ncolors_allocated
);
1752 if (face
->overline_p
1753 && !face
->overline_color_defaulted_p
)
1755 x_free_colors (f
, &face
->overline_color
, 1);
1756 IF_DEBUG (--ncolors_allocated
);
1759 if (face
->strike_through_p
1760 && !face
->strike_through_color_defaulted_p
)
1762 x_free_colors (f
, &face
->strike_through_color
, 1);
1763 IF_DEBUG (--ncolors_allocated
);
1766 if (face
->box
!= FACE_NO_BOX
1767 && !face
->box_color_defaulted_p
)
1769 x_free_colors (f
, &face
->box_color
, 1);
1770 IF_DEBUG (--ncolors_allocated
);
1774 #endif /* HAVE_X_WINDOWS */
1777 #endif /* HAVE_WINDOW_SYSTEM */
1781 /***********************************************************************
1783 ***********************************************************************/
1785 /* An enumerator for each field of an XLFD font name. */
1806 /* An enumerator for each possible slant value of a font. Taken from
1807 the XLFD specification. */
1815 XLFD_SLANT_REVERSE_ITALIC
,
1816 XLFD_SLANT_REVERSE_OBLIQUE
,
1820 /* Relative font weight according to XLFD documentation. */
1824 XLFD_WEIGHT_UNKNOWN
,
1825 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1826 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1827 XLFD_WEIGHT_LIGHT
, /* 30 */
1828 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1829 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1830 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1831 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1832 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1833 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1836 /* Relative proportionate width. */
1840 XLFD_SWIDTH_UNKNOWN
,
1841 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1842 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1843 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1844 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1845 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1846 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1847 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1848 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1849 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1852 /* Structure used for tables mapping XLFD weight, slant, and width
1853 names to numeric and symbolic values. */
1859 Lisp_Object
*symbol
;
1862 /* Table of XLFD slant names and their numeric and symbolic
1863 representations. This table must be sorted by slant names in
1866 static struct table_entry slant_table
[] =
1868 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1869 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1870 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1871 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1872 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1873 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1876 /* Table of XLFD weight names. This table must be sorted by weight
1877 names in ascending order. */
1879 static struct table_entry weight_table
[] =
1881 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1882 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1883 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1884 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1885 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1886 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1887 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1888 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1889 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1890 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1891 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1892 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1893 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1894 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1895 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1896 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1899 /* Table of XLFD width names. This table must be sorted by width
1900 names in ascending order. */
1902 static struct table_entry swidth_table
[] =
1904 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1905 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1906 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1907 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1908 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1909 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1910 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1911 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1912 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1913 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1914 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1915 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1916 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1917 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1918 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1921 /* Structure used to hold the result of splitting font names in XLFD
1922 format into their fields. */
1926 /* The original name which is modified destructively by
1927 split_font_name. The pointer is kept here to be able to free it
1928 if it was allocated from the heap. */
1931 /* Font name fields. Each vector element points into `name' above.
1932 Fields are NUL-terminated. */
1933 char *fields
[XLFD_LAST
];
1935 /* Numeric values for those fields that interest us. See
1936 split_font_name for which these are. */
1937 int numeric
[XLFD_LAST
];
1939 /* If the original name matches one of Vface_font_rescale_alist,
1940 the value is the corresponding rescale ratio. Otherwise, the
1942 double rescale_ratio
;
1944 /* Lower value mean higher priority. */
1945 int registry_priority
;
1948 /* The frame in effect when sorting font names. Set temporarily in
1949 sort_fonts so that it is available in font comparison functions. */
1951 static struct frame
*font_frame
;
1953 /* Order by which font selection chooses fonts. The default values
1954 mean `first, find a best match for the font width, then for the
1955 font height, then for weight, then for slant.' This variable can be
1956 set via set-face-font-sort-order. */
1959 static int font_sort_order
[4] = {
1960 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1963 static int font_sort_order
[4];
1966 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1967 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1968 is a pointer to the matching table entry or null if no table entry
1971 static struct table_entry
*
1972 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1973 struct table_entry
*table
;
1975 struct font_name
*font
;
1978 /* Function split_font_name converts fields to lower-case, so there
1979 is no need to use xstrlwr or xstricmp here. */
1980 char *s
= font
->fields
[field_index
];
1981 int low
, mid
, high
, cmp
;
1988 mid
= (low
+ high
) / 2;
1989 cmp
= strcmp (table
[mid
].name
, s
);
2003 /* Return a numeric representation for font name field
2004 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2005 has DIM entries. Value is the numeric value found or DFLT if no
2006 table entry matches. This function is used to translate weight,
2007 slant, and swidth names of XLFD font names to numeric values. */
2010 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
2011 struct table_entry
*table
;
2013 struct font_name
*font
;
2017 struct table_entry
*p
;
2018 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2019 return p
? p
->numeric
: dflt
;
2023 /* Return a symbolic representation for font name field
2024 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2025 has DIM entries. Value is the symbolic value found or DFLT if no
2026 table entry matches. This function is used to translate weight,
2027 slant, and swidth names of XLFD font names to symbols. */
2029 static INLINE Lisp_Object
2030 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2031 struct table_entry
*table
;
2033 struct font_name
*font
;
2037 struct table_entry
*p
;
2038 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2039 return p
? *p
->symbol
: dflt
;
2043 /* Return a numeric value for the slant of the font given by FONT. */
2046 xlfd_numeric_slant (font
)
2047 struct font_name
*font
;
2049 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2050 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2054 /* Return a symbol representing the weight of the font given by FONT. */
2056 static INLINE Lisp_Object
2057 xlfd_symbolic_slant (font
)
2058 struct font_name
*font
;
2060 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2061 font
, XLFD_SLANT
, Qnormal
);
2065 /* Return a numeric value for the weight of the font given by FONT. */
2068 xlfd_numeric_weight (font
)
2069 struct font_name
*font
;
2071 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2072 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2076 /* Return a symbol representing the slant of the font given by FONT. */
2078 static INLINE Lisp_Object
2079 xlfd_symbolic_weight (font
)
2080 struct font_name
*font
;
2082 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2083 font
, XLFD_WEIGHT
, Qnormal
);
2087 /* Return a numeric value for the swidth of the font whose XLFD font
2088 name fields are found in FONT. */
2091 xlfd_numeric_swidth (font
)
2092 struct font_name
*font
;
2094 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2095 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2099 /* Return a symbolic value for the swidth of FONT. */
2101 static INLINE Lisp_Object
2102 xlfd_symbolic_swidth (font
)
2103 struct font_name
*font
;
2105 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2106 font
, XLFD_SWIDTH
, Qnormal
);
2110 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2111 entries. Value is a pointer to the matching table entry or null if
2112 no element of TABLE contains SYMBOL. */
2114 static struct table_entry
*
2115 face_value (table
, dim
, symbol
)
2116 struct table_entry
*table
;
2122 xassert (SYMBOLP (symbol
));
2124 for (i
= 0; i
< dim
; ++i
)
2125 if (EQ (*table
[i
].symbol
, symbol
))
2128 return i
< dim
? table
+ i
: NULL
;
2132 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2133 entries. Value is -1 if SYMBOL is not found in TABLE. */
2136 face_numeric_value (table
, dim
, symbol
)
2137 struct table_entry
*table
;
2141 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2142 return p
? p
->numeric
: -1;
2146 /* Return a numeric value representing the weight specified by Lisp
2147 symbol WEIGHT. Value is one of the enumerators of enum
2151 face_numeric_weight (weight
)
2154 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2158 /* Return a numeric value representing the slant specified by Lisp
2159 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2162 face_numeric_slant (slant
)
2165 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2169 /* Return a numeric value representing the swidth specified by Lisp
2170 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2173 face_numeric_swidth (width
)
2176 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2180 #ifdef HAVE_WINDOW_SYSTEM
2182 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2186 struct font_name
*font
;
2188 /* Function split_font_name converts fields to lower-case, so there
2189 is no need to use tolower here. */
2190 return *font
->fields
[XLFD_SPACING
] != 'p';
2194 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2196 The actual height of the font when displayed on F depends on the
2197 resolution of both the font and frame. For example, a 10pt font
2198 designed for a 100dpi display will display larger than 10pt on a
2199 75dpi display. (It's not unusual to use fonts not designed for the
2200 display one is using. For example, some intlfonts are available in
2201 72dpi versions, only.)
2203 Value is the real point size of FONT on frame F, or 0 if it cannot
2207 xlfd_point_size (f
, font
)
2209 struct font_name
*font
;
2211 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2212 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2216 if (*pixel_field
== '[')
2218 /* The pixel size field is `[A B C D]' which specifies
2219 a transformation matrix.
2225 by which all glyphs of the font are transformed. The spec
2226 says that s scalar value N for the pixel size is equivalent
2227 to A = N * resx/resy, B = C = 0, D = N. */
2228 char *start
= pixel_field
+ 1, *end
;
2232 for (i
= 0; i
< 4; ++i
)
2234 matrix
[i
] = strtod (start
, &end
);
2241 pixel
= atoi (pixel_field
);
2246 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2252 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2253 of frame F. This function is used to guess a point size of font
2254 when only the pixel height of the font is available. */
2257 pixel_point_size (f
, pixel
)
2261 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2265 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2266 point size of one dot. */
2267 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2268 int_pt
= real_pt
+ 0.5;
2274 /* Return a rescaling ratio of a font of NAME. */
2277 font_rescale_ratio (name
)
2280 Lisp_Object tail
, elt
;
2282 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2285 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2286 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2287 return XFLOAT_DATA (XCDR (elt
));
2293 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2294 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2295 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2296 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2297 zero if the font name doesn't have the format we expect. The
2298 expected format is a font name that starts with a `-' and has
2299 XLFD_LAST fields separated by `-'. */
2302 split_font_name (f
, font
, numeric_p
)
2304 struct font_name
*font
;
2309 double rescale_ratio
;
2312 /* This must be done before splitting the font name. */
2313 rescale_ratio
= font_rescale_ratio (font
->name
);
2315 if (*font
->name
== '-')
2317 char *p
= xstrlwr (font
->name
) + 1;
2319 while (i
< XLFD_LAST
)
2321 font
->fields
[i
] = p
;
2324 /* Pixel and point size may be of the form `[....]'. For
2325 BNF, see XLFD spec, chapter 4. Negative values are
2326 indicated by tilde characters which we replace with
2327 `-' characters, here. */
2329 && (i
- 1 == XLFD_PIXEL_SIZE
2330 || i
- 1 == XLFD_POINT_SIZE
))
2335 for (++p
; *p
&& *p
!= ']'; ++p
)
2339 /* Check that the matrix contains 4 floating point
2341 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2344 if (strtod (start
, &end
) == 0 && start
== end
)
2351 while (*p
&& *p
!= '-')
2361 success_p
= i
== XLFD_LAST
;
2363 /* If requested, and font name was in the expected format,
2364 compute numeric values for some fields. */
2365 if (numeric_p
&& success_p
)
2367 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2368 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2369 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2370 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2371 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2372 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2373 font
->rescale_ratio
= rescale_ratio
;
2376 /* Initialize it to zero. It will be overridden by font_list while
2377 trying alternate registries. */
2378 font
->registry_priority
= 0;
2384 /* Build an XLFD font name from font name fields in FONT. Value is a
2385 pointer to the font name, which is allocated via xmalloc. */
2388 build_font_name (font
)
2389 struct font_name
*font
;
2393 char *font_name
= (char *) xmalloc (size
);
2394 int total_length
= 0;
2396 for (i
= 0; i
< XLFD_LAST
; ++i
)
2398 /* Add 1 because of the leading `-'. */
2399 int len
= strlen (font
->fields
[i
]) + 1;
2401 /* Reallocate font_name if necessary. Add 1 for the final
2403 if (total_length
+ len
+ 1 >= size
)
2405 int new_size
= max (2 * size
, size
+ len
+ 1);
2406 int sz
= new_size
* sizeof *font_name
;
2407 font_name
= (char *) xrealloc (font_name
, sz
);
2411 font_name
[total_length
] = '-';
2412 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2413 total_length
+= len
;
2416 font_name
[total_length
] = 0;
2421 /* Free an array FONTS of N font_name structures. This frees FONTS
2422 itself and all `name' fields in its elements. */
2425 free_font_names (fonts
, n
)
2426 struct font_name
*fonts
;
2430 xfree (fonts
[--n
].name
);
2435 /* Sort vector FONTS of font_name structures which contains NFONTS
2436 elements using qsort and comparison function CMPFN. F is the frame
2437 on which the fonts will be used. The global variable font_frame
2438 is temporarily set to F to make it available in CMPFN. */
2441 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2443 struct font_name
*fonts
;
2445 int (*cmpfn
) P_ ((const void *, const void *));
2448 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2453 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2454 display in x_display_list. FONTS is a pointer to a vector of
2455 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2456 alternative patterns from Valternate_fontname_alist if no fonts are
2457 found matching PATTERN.
2459 For all fonts found, set FONTS[i].name to the name of the font,
2460 allocated via xmalloc, and split font names into fields. Ignore
2461 fonts that we can't parse. Value is the number of fonts found. */
2464 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2467 struct font_name
**pfonts
;
2468 int nfonts
, try_alternatives_p
;
2472 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2473 better to do it the other way around. */
2475 Lisp_Object lpattern
, tem
;
2476 struct font_name
*fonts
= 0;
2477 int num_fonts
= nfonts
;
2480 lpattern
= build_string (pattern
);
2482 /* Get the list of fonts matching PATTERN. */
2485 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2488 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2491 if (nfonts
< 0 && CONSP (lfonts
))
2492 num_fonts
= XFASTINT (Flength (lfonts
));
2494 /* Make a copy of the font names we got from X, and
2495 split them into fields. */
2497 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2499 Lisp_Object elt
, tail
;
2500 const char *name
= SDATA (XCAR (tem
));
2502 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2503 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2507 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2518 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2522 /* Make a copy of the font name. */
2523 fonts
[n
].name
= xstrdup (name
);
2525 if (split_font_name (f
, fonts
+ n
, 1))
2527 if (font_scalable_p (fonts
+ n
)
2528 && !may_use_scalable_font_p (name
))
2531 xfree (fonts
[n
].name
);
2537 xfree (fonts
[n
].name
);
2540 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2541 if (n
== 0 && try_alternatives_p
)
2543 Lisp_Object list
= Valternate_fontname_alist
;
2551 while (CONSP (list
))
2553 Lisp_Object entry
= XCAR (list
);
2555 && STRINGP (XCAR (entry
))
2556 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2563 Lisp_Object patterns
= XCAR (list
);
2566 while (CONSP (patterns
)
2567 /* If list is screwed up, give up. */
2568 && (name
= XCAR (patterns
),
2570 /* Ignore patterns equal to PATTERN because we tried that
2571 already with no success. */
2572 && (strcmp (SDATA (name
), pattern
) == 0
2573 || (n
= x_face_list_fonts (f
, SDATA (name
),
2576 patterns
= XCDR (patterns
);
2584 /* Check if a font matching pattern_offset_t on frame F is available
2585 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2586 a font name pattern is generated from FAMILY and REGISTRY. */
2589 face_font_available_p (f
, pattern
)
2591 Lisp_Object pattern
;
2595 if (! STRINGP (pattern
))
2597 Lisp_Object family
, registry
;
2598 char *family_str
, *registry_str
, *pattern_str
;
2600 CHECK_CONS (pattern
);
2601 family
= XCAR (pattern
);
2606 CHECK_STRING (family
);
2607 family_str
= (char *) SDATA (family
);
2609 registry
= XCDR (pattern
);
2610 if (NILP (registry
))
2614 CHECK_STRING (registry
);
2615 registry_str
= (char *) SDATA (registry
);
2618 pattern_str
= (char *) alloca (strlen (family_str
)
2619 + strlen (registry_str
)
2621 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2622 strcat (pattern_str
, family_str
);
2623 strcat (pattern_str
, "-*-");
2624 strcat (pattern_str
, registry_str
);
2625 if (!index (registry_str
, '-'))
2627 if (registry_str
[strlen (registry_str
) - 1] == '*')
2628 strcat (pattern_str
, "-*");
2630 strcat (pattern_str
, "*-*");
2632 pattern
= build_string (pattern_str
);
2635 /* Get the list of fonts matching PATTERN. */
2638 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2641 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2643 return XINT (Flength (fonts
));
2647 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2648 using comparison function CMPFN. Value is the number of fonts
2649 found. If value is non-zero, *FONTS is set to a vector of
2650 font_name structures allocated from the heap containing matching
2651 fonts. Each element of *FONTS contains a name member that is also
2652 allocated from the heap. Font names in these structures are split
2653 into fields. Use free_font_names to free such an array. */
2656 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2659 int (*cmpfn
) P_ ((const void *, const void *));
2660 struct font_name
**fonts
;
2664 /* Get the list of fonts matching pattern. 100 should suffice. */
2665 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2666 if (INTEGERP (Vfont_list_limit
))
2667 nfonts
= XINT (Vfont_list_limit
);
2670 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2672 /* Sort the resulting array and return it in *FONTS. If no
2673 fonts were found, make sure to set *FONTS to null. */
2675 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2686 /* Compare two font_name structures *A and *B. Value is analogous to
2687 strcmp. Sort order is given by the global variable
2688 font_sort_order. Font names are sorted so that, everything else
2689 being equal, fonts with a resolution closer to that of the frame on
2690 which they are used are listed first. The global variable
2691 font_frame is the frame on which we operate. */
2694 cmp_font_names (a
, b
)
2697 struct font_name
*x
= (struct font_name
*) a
;
2698 struct font_name
*y
= (struct font_name
*) b
;
2701 /* All strings have been converted to lower-case by split_font_name,
2702 so we can use strcmp here. */
2703 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2708 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2710 int j
= font_sort_order
[i
];
2711 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2716 /* Everything else being equal, we prefer fonts with an
2717 y-resolution closer to that of the frame. */
2718 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2719 int x_resy
= x
->numeric
[XLFD_RESY
];
2720 int y_resy
= y
->numeric
[XLFD_RESY
];
2721 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2729 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2730 is non-nil list fonts matching that pattern. Otherwise, if
2731 REGISTRY is non-nil return only fonts with that registry, otherwise
2732 return fonts of any registry. Set *FONTS to a vector of font_name
2733 structures allocated from the heap containing the fonts found.
2734 Value is the number of fonts found. */
2737 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2739 Lisp_Object pattern
, family
, registry
;
2740 struct font_name
**fonts
;
2742 char *pattern_str
, *family_str
, *registry_str
;
2746 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2747 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2749 pattern_str
= (char *) alloca (strlen (family_str
)
2750 + strlen (registry_str
)
2752 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2753 strcat (pattern_str
, family_str
);
2754 strcat (pattern_str
, "-*-");
2755 strcat (pattern_str
, registry_str
);
2756 if (!index (registry_str
, '-'))
2758 if (registry_str
[strlen (registry_str
) - 1] == '*')
2759 strcat (pattern_str
, "-*");
2761 strcat (pattern_str
, "*-*");
2765 pattern_str
= (char *) SDATA (pattern
);
2767 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2771 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2772 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2773 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2776 static struct font_name
*
2777 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2778 struct font_name
*fonts1
, *fonts2
;
2779 int nfonts1
, nfonts2
;
2781 int new_nfonts
= nfonts1
+ nfonts2
;
2782 struct font_name
*new_fonts
;
2784 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2785 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2786 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2793 /* Get a sorted list of fonts of family FAMILY on frame F.
2795 If PATTERN is non-nil list fonts matching that pattern.
2797 If REGISTRY is non-nil, return fonts with that registry and the
2798 alternative registries from Vface_alternative_font_registry_alist.
2800 If REGISTRY is nil return fonts of any registry.
2802 Set *FONTS to a vector of font_name structures allocated from the
2803 heap containing the fonts found. Value is the number of fonts
2807 font_list (f
, pattern
, family
, registry
, fonts
)
2809 Lisp_Object pattern
, family
, registry
;
2810 struct font_name
**fonts
;
2812 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2814 if (!NILP (registry
)
2815 && CONSP (Vface_alternative_font_registry_alist
))
2819 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2824 for (alter
= XCDR (alter
), reg_prio
= 1;
2826 alter
= XCDR (alter
), reg_prio
++)
2827 if (STRINGP (XCAR (alter
)))
2830 struct font_name
*fonts2
;
2832 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2834 for (i
= 0; i
< nfonts2
; i
++)
2835 fonts2
[i
].registry_priority
= reg_prio
;
2836 *fonts
= (nfonts
> 0
2837 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2848 /* Remove elements from LIST whose cars are `equal'. Called from
2849 x-family-fonts and x-font-family-list to remove duplicate font
2853 remove_duplicates (list
)
2856 Lisp_Object tail
= list
;
2858 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2860 Lisp_Object next
= XCDR (tail
);
2861 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2862 XSETCDR (tail
, XCDR (next
));
2869 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2870 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2871 If FAMILY is omitted or nil, list all families.
2872 Otherwise, FAMILY must be a string, possibly containing wildcards
2874 If FRAME is omitted or nil, use the selected frame.
2875 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2876 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2877 FAMILY is the font family name. POINT-SIZE is the size of the
2878 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2879 width, weight and slant of the font. These symbols are the same as for
2880 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2881 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2882 giving the registry and encoding of the font.
2883 The result list is sorted according to the current setting of
2884 the face font sort order. */)
2886 Lisp_Object family
, frame
;
2888 struct frame
*f
= check_x_frame (frame
);
2889 struct font_name
*fonts
;
2892 struct gcpro gcpro1
;
2895 CHECK_STRING (family
);
2899 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2900 for (i
= nfonts
- 1; i
>= 0; --i
)
2902 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2905 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2906 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2907 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2908 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2909 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2910 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2911 tem
= build_font_name (fonts
+ i
);
2912 ASET (v
, 6, build_string (tem
));
2913 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2914 fonts
[i
].fields
[XLFD_ENCODING
]);
2915 ASET (v
, 7, build_string (tem
));
2918 result
= Fcons (v
, result
);
2921 remove_duplicates (result
);
2922 free_font_names (fonts
, nfonts
);
2928 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2930 doc
: /* Return a list of available font families on FRAME.
2931 If FRAME is omitted or nil, use the selected frame.
2932 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2933 is a font family, and FIXED-P is non-nil if fonts of that family
2934 are fixed-pitch. */)
2938 struct frame
*f
= check_x_frame (frame
);
2940 struct font_name
*fonts
;
2942 struct gcpro gcpro1
;
2943 int count
= SPECPDL_INDEX ();
2945 /* Let's consider all fonts. */
2946 specbind (intern ("font-list-limit"), make_number (-1));
2947 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2951 for (i
= nfonts
- 1; i
>= 0; --i
)
2952 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2953 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2956 remove_duplicates (result
);
2957 free_font_names (fonts
, nfonts
);
2959 return unbind_to (count
, result
);
2963 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2964 doc
: /* Return a list of the names of available fonts matching PATTERN.
2965 If optional arguments FACE and FRAME are specified, return only fonts
2966 the same size as FACE on FRAME.
2967 PATTERN is a string, perhaps with wildcard characters;
2968 the * character matches any substring, and
2969 the ? character matches any single character.
2970 PATTERN is case-insensitive.
2971 FACE is a face name--a symbol.
2973 The return value is a list of strings, suitable as arguments to
2976 Fonts Emacs can't use may or may not be excluded
2977 even if they match PATTERN and FACE.
2978 The optional fourth argument MAXIMUM sets a limit on how many
2979 fonts to match. The first MAXIMUM fonts are reported.
2980 The optional fifth argument WIDTH, if specified, is a number of columns
2981 occupied by a character of a font. In that case, return only fonts
2982 the WIDTH times as wide as FACE on FRAME. */)
2983 (pattern
, face
, frame
, maximum
, width
)
2984 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2991 CHECK_STRING (pattern
);
2997 CHECK_NATNUM (maximum
);
2998 maxnames
= XINT (maximum
);
3002 CHECK_NUMBER (width
);
3004 /* We can't simply call check_x_frame because this function may be
3005 called before any frame is created. */
3006 f
= frame_or_selected_frame (frame
, 2);
3007 if (!FRAME_WINDOW_P (f
))
3009 /* Perhaps we have not yet created any frame. */
3014 /* Determine the width standard for comparison with the fonts we find. */
3020 /* This is of limited utility since it works with character
3021 widths. Keep it for compatibility. --gerd. */
3022 int face_id
= lookup_named_face (f
, face
, 0, 0);
3023 struct face
*face
= (face_id
< 0
3025 : FACE_FROM_ID (f
, face_id
));
3028 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3029 not maximum as on X. Redefine here. */
3031 #define FONT_WIDTH FONT_MAX_WIDTH
3034 if (face
&& face
->font
)
3035 size
= FONT_WIDTH (face
->font
);
3037 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3040 size
*= XINT (width
);
3044 Lisp_Object args
[2];
3046 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3048 /* We don't have to check fontsets. */
3050 args
[1] = list_fontsets (f
, pattern
, size
);
3051 return Fnconc (2, args
);
3055 #endif /* HAVE_WINDOW_SYSTEM */
3059 /***********************************************************************
3061 ***********************************************************************/
3063 /* Access face attributes of face LFACE, a Lisp vector. */
3065 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3066 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3067 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3068 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3069 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3070 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3071 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3072 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3073 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3074 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3075 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3076 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3077 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3078 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3079 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3080 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3082 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3083 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3085 #define LFACEP(LFACE) \
3087 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3088 && EQ (AREF (LFACE, 0), Qface))
3093 /* Check consistency of Lisp face attribute vector ATTRS. */
3096 check_lface_attrs (attrs
)
3099 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3100 || IGNORE_DEFFACE_P (attrs
[LFACE_FAMILY_INDEX
])
3101 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3102 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3103 || IGNORE_DEFFACE_P (attrs
[LFACE_SWIDTH_INDEX
])
3104 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3105 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3106 || IGNORE_DEFFACE_P (attrs
[LFACE_AVGWIDTH_INDEX
])
3107 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3108 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3109 || IGNORE_DEFFACE_P (attrs
[LFACE_HEIGHT_INDEX
])
3110 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3111 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3112 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3113 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3114 || IGNORE_DEFFACE_P (attrs
[LFACE_WEIGHT_INDEX
])
3115 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3116 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3117 || IGNORE_DEFFACE_P (attrs
[LFACE_SLANT_INDEX
])
3118 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3119 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3120 || IGNORE_DEFFACE_P (attrs
[LFACE_UNDERLINE_INDEX
])
3121 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3122 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3123 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3124 || IGNORE_DEFFACE_P (attrs
[LFACE_OVERLINE_INDEX
])
3125 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3126 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3127 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3128 || IGNORE_DEFFACE_P (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3129 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3130 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3131 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3132 || IGNORE_DEFFACE_P (attrs
[LFACE_BOX_INDEX
])
3133 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3134 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3135 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3136 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3137 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3138 || IGNORE_DEFFACE_P (attrs
[LFACE_INVERSE_INDEX
])
3139 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3140 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3141 || IGNORE_DEFFACE_P (attrs
[LFACE_FOREGROUND_INDEX
])
3142 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3143 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3144 || IGNORE_DEFFACE_P (attrs
[LFACE_BACKGROUND_INDEX
])
3145 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3146 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3147 || IGNORE_DEFFACE_P (attrs
[LFACE_INHERIT_INDEX
])
3148 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3149 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3150 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3151 #ifdef HAVE_WINDOW_SYSTEM
3152 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3153 || IGNORE_DEFFACE_P (attrs
[LFACE_STIPPLE_INDEX
])
3154 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3155 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3156 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3157 || IGNORE_DEFFACE_P (attrs
[LFACE_FONT_INDEX
])
3158 || NILP (attrs
[LFACE_FONT_INDEX
])
3159 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3164 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3172 xassert (LFACEP (lface
));
3173 check_lface_attrs (XVECTOR (lface
)->contents
);
3177 #else /* GLYPH_DEBUG == 0 */
3179 #define check_lface_attrs(attrs) (void) 0
3180 #define check_lface(lface) (void) 0
3182 #endif /* GLYPH_DEBUG == 0 */
3186 /* Face-merge cycle checking. */
3188 /* A `named merge point' is simply a point during face-merging where we
3189 look up a face by name. We keep a stack of which named lookups we're
3190 currently processing so that we can easily detect cycles, using a
3191 linked- list of struct named_merge_point structures, typically
3192 allocated on the stack frame of the named lookup functions which are
3193 active (so no consing is required). */
3194 struct named_merge_point
3196 Lisp_Object face_name
;
3197 struct named_merge_point
*prev
;
3201 /* If a face merging cycle is detected for FACE_NAME, return 0,
3202 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3203 FACE_NAME, as the head of the linked list pointed to by
3204 NAMED_MERGE_POINTS, and return 1. */
3207 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3208 Lisp_Object face_name
,
3209 struct named_merge_point
**named_merge_points
)
3211 struct named_merge_point
*prev
;
3213 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3214 if (EQ (face_name
, prev
->face_name
))
3217 new_named_merge_point
->face_name
= face_name
;
3218 new_named_merge_point
->prev
= *named_merge_points
;
3220 *named_merge_points
= new_named_merge_point
;
3227 #if 0 /* Seems to be unused. */
3229 internal_resolve_face_name (nargs
, args
)
3233 return Fget (args
[0], args
[1]);
3237 resolve_face_name_error (ignore
)
3244 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3245 to make it a symbol. If FACE_NAME is an alias for another face,
3246 return that face's name.
3248 Return default face in case of errors. */
3251 resolve_face_name (face_name
, signal_p
)
3252 Lisp_Object face_name
;
3255 Lisp_Object orig_face
;
3256 Lisp_Object tortoise
, hare
;
3258 if (STRINGP (face_name
))
3259 face_name
= intern (SDATA (face_name
));
3261 if (NILP (face_name
) || !SYMBOLP (face_name
))
3264 orig_face
= face_name
;
3265 tortoise
= hare
= face_name
;
3270 hare
= Fget (hare
, Qface_alias
);
3271 if (NILP (hare
) || !SYMBOLP (hare
))
3275 hare
= Fget (hare
, Qface_alias
);
3276 if (NILP (hare
) || !SYMBOLP (hare
))
3279 tortoise
= Fget (tortoise
, Qface_alias
);
3280 if (EQ (hare
, tortoise
))
3283 xsignal1 (Qcircular_list
, orig_face
);
3292 /* Return the face definition of FACE_NAME on frame F. F null means
3293 return the definition for new frames. FACE_NAME may be a string or
3294 a symbol (apparently Emacs 20.2 allowed strings as face names in
3295 face text properties; Ediff uses that). If FACE_NAME is an alias
3296 for another face, return that face's definition. If SIGNAL_P is
3297 non-zero, signal an error if FACE_NAME is not a valid face name.
3298 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3301 static INLINE Lisp_Object
3302 lface_from_face_name (f
, face_name
, signal_p
)
3304 Lisp_Object face_name
;
3309 face_name
= resolve_face_name (face_name
, signal_p
);
3312 lface
= assq_no_quit (face_name
, f
->face_alist
);
3314 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3317 lface
= XCDR (lface
);
3319 signal_error ("Invalid face", face_name
);
3321 check_lface (lface
);
3326 /* Get face attributes of face FACE_NAME from frame-local faces on
3327 frame F. Store the resulting attributes in ATTRS which must point
3328 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3329 is non-zero, signal an error if FACE_NAME does not name a face.
3330 Otherwise, value is zero if FACE_NAME is not a face. */
3333 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3335 Lisp_Object face_name
;
3342 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3345 bcopy (XVECTOR (lface
)->contents
, attrs
,
3346 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3356 /* Non-zero if all attributes in face attribute vector ATTRS are
3357 specified, i.e. are non-nil. */
3360 lface_fully_specified_p (attrs
)
3365 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3366 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3367 && i
!= LFACE_AVGWIDTH_INDEX
)
3368 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
]))
3370 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3371 always unspecified. */
3372 && i
!= LFACE_STIPPLE_INDEX
3377 return i
== LFACE_VECTOR_SIZE
;
3380 #ifdef HAVE_WINDOW_SYSTEM
3382 /* Set font-related attributes of Lisp face LFACE from the fullname of
3383 the font opened by FONTNAME. If FORCE_P is zero, set only
3384 unspecified attributes of LFACE. The exception is `font'
3385 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3387 If FONTNAME is not available on frame F,
3388 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3389 If the fullname is not in a valid XLFD format,
3390 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3391 in LFACE and return 1.
3392 Otherwise, return 1. */
3395 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3398 Lisp_Object fontname
;
3399 int force_p
, may_fail_p
;
3401 struct font_name font
;
3406 char *font_name
= SDATA (fontname
);
3407 struct font_info
*font_info
;
3409 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3410 fontset
= fs_query_fontset (fontname
, 0);
3412 font_name
= SDATA (fontset_ascii (fontset
));
3414 /* Check if FONT_NAME is surely available on the system. Usually
3415 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3416 returns quickly. But, even if FONT_NAME is not yet cached,
3417 caching it now is not futail because we anyway load the font
3420 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3430 font
.name
= STRDUPA (font_info
->full_name
);
3431 have_xlfd_p
= split_font_name (f
, &font
, 1);
3433 /* Set attributes only if unspecified, otherwise face defaults for
3434 new frames would never take effect. If we couldn't get a font
3435 name conforming to XLFD, set normal values. */
3437 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3442 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3443 + strlen (font
.fields
[XLFD_FOUNDRY
])
3445 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3446 font
.fields
[XLFD_FAMILY
]);
3447 val
= build_string (buffer
);
3450 val
= build_string ("*");
3451 LFACE_FAMILY (lface
) = val
;
3454 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3457 pt
= xlfd_point_size (f
, &font
);
3459 pt
= pixel_point_size (f
, font_info
->height
* 10);
3461 LFACE_HEIGHT (lface
) = make_number (pt
);
3464 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3465 LFACE_SWIDTH (lface
)
3466 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3468 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3469 LFACE_AVGWIDTH (lface
)
3471 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3474 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3475 LFACE_WEIGHT (lface
)
3476 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3478 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3480 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3482 LFACE_FONT (lface
) = fontname
;
3487 #endif /* HAVE_WINDOW_SYSTEM */
3490 /* Merges the face height FROM with the face height TO, and returns the
3491 merged height. If FROM is an invalid height, then INVALID is
3492 returned instead. FROM and TO may be either absolute face heights or
3493 `relative' heights; the returned value is always an absolute height
3494 unless both FROM and TO are relative. GCPRO is a lisp value that
3495 will be protected from garbage-collection if this function makes a
3499 merge_face_heights (from
, to
, invalid
)
3500 Lisp_Object from
, to
, invalid
;
3502 Lisp_Object result
= invalid
;
3504 if (INTEGERP (from
))
3505 /* FROM is absolute, just use it as is. */
3507 else if (FLOATP (from
))
3508 /* FROM is a scale, use it to adjust TO. */
3511 /* relative X absolute => absolute */
3512 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3513 else if (FLOATP (to
))
3514 /* relative X relative => relative */
3515 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3516 else if (UNSPECIFIEDP (to
))
3519 else if (FUNCTIONP (from
))
3520 /* FROM is a function, which use to adjust TO. */
3522 /* Call function with current height as argument.
3523 From is the new height. */
3524 Lisp_Object args
[2];
3528 result
= safe_call (2, args
);
3530 /* Ensure that if TO was absolute, so is the result. */
3531 if (INTEGERP (to
) && !INTEGERP (result
))
3539 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3540 store the resulting attributes in TO, which must be already be
3541 completely specified and contain only absolute attributes. Every
3542 specified attribute of FROM overrides the corresponding attribute of
3543 TO; relative attributes in FROM are merged with the absolute value in
3544 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3545 loops in face inheritance; it should be 0 when called from other
3549 merge_face_vectors (f
, from
, to
, named_merge_points
)
3551 Lisp_Object
*from
, *to
;
3552 struct named_merge_point
*named_merge_points
;
3556 /* If FROM inherits from some other faces, merge their attributes into
3557 TO before merging FROM's direct attributes. Note that an :inherit
3558 attribute of `unspecified' is the same as one of nil; we never
3559 merge :inherit attributes, so nil is more correct, but lots of
3560 other code uses `unspecified' as a generic value for face attributes. */
3561 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3562 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3563 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3565 /* If TO specifies a :font attribute, and FROM specifies some
3566 font-related attribute, we need to clear TO's :font attribute
3567 (because it will be inconsistent with whatever FROM specifies, and
3568 FROM takes precedence). */
3569 if (!NILP (to
[LFACE_FONT_INDEX
])
3570 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3571 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3572 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3573 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3574 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3575 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3576 to
[LFACE_FONT_INDEX
] = Qnil
;
3578 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3579 if (!UNSPECIFIEDP (from
[i
]))
3581 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3582 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
3587 /* TO is always an absolute face, which should inherit from nothing.
3588 We blindly copy the :inherit attribute above and fix it up here. */
3589 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3592 /* Merge the named face FACE_NAME on frame F, into the vector of face
3593 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3594 inheritance. Returns true if FACE_NAME is a valid face name and
3595 merging succeeded. */
3598 merge_named_face (f
, face_name
, to
, named_merge_points
)
3600 Lisp_Object face_name
;
3602 struct named_merge_point
*named_merge_points
;
3604 struct named_merge_point named_merge_point
;
3606 if (push_named_merge_point (&named_merge_point
,
3607 face_name
, &named_merge_points
))
3609 struct gcpro gcpro1
;
3610 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3611 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3615 GCPRO1 (named_merge_point
.face_name
);
3616 merge_face_vectors (f
, from
, to
, named_merge_points
);
3627 /* Merge face attributes from the lisp `face reference' FACE_REF on
3628 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3629 problems with FACE_REF cause an error message to be shown. Return
3630 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3631 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3632 list structure; it may be 0 for most callers.
3634 FACE_REF may be a single face specification or a list of such
3635 specifications. Each face specification can be:
3637 1. A symbol or string naming a Lisp face.
3639 2. A property list of the form (KEYWORD VALUE ...) where each
3640 KEYWORD is a face attribute name, and value is an appropriate value
3643 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3644 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3645 for compatibility with 20.2.
3647 Face specifications earlier in lists take precedence over later
3651 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3653 Lisp_Object face_ref
;
3656 struct named_merge_point
*named_merge_points
;
3658 int ok
= 1; /* Succeed without an error? */
3660 if (CONSP (face_ref
))
3662 Lisp_Object first
= XCAR (face_ref
);
3664 if (EQ (first
, Qforeground_color
)
3665 || EQ (first
, Qbackground_color
))
3667 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3668 . COLOR). COLOR must be a string. */
3669 Lisp_Object color_name
= XCDR (face_ref
);
3670 Lisp_Object color
= first
;
3672 if (STRINGP (color_name
))
3674 if (EQ (color
, Qforeground_color
))
3675 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3677 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3682 add_to_log ("Invalid face color", color_name
, Qnil
);
3686 else if (SYMBOLP (first
)
3687 && *SDATA (SYMBOL_NAME (first
)) == ':')
3689 /* Assume this is the property list form. */
3690 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3692 Lisp_Object keyword
= XCAR (face_ref
);
3693 Lisp_Object value
= XCAR (XCDR (face_ref
));
3696 /* Specifying `unspecified' is a no-op. */
3697 if (EQ (value
, Qunspecified
))
3699 else if (EQ (keyword
, QCfamily
))
3701 if (STRINGP (value
))
3702 to
[LFACE_FAMILY_INDEX
] = value
;
3706 else if (EQ (keyword
, QCheight
))
3708 Lisp_Object new_height
=
3709 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
3711 if (! NILP (new_height
))
3712 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3716 else if (EQ (keyword
, QCweight
))
3719 && face_numeric_weight (value
) >= 0)
3720 to
[LFACE_WEIGHT_INDEX
] = value
;
3724 else if (EQ (keyword
, QCslant
))
3727 && face_numeric_slant (value
) >= 0)
3728 to
[LFACE_SLANT_INDEX
] = value
;
3732 else if (EQ (keyword
, QCunderline
))
3737 to
[LFACE_UNDERLINE_INDEX
] = value
;
3741 else if (EQ (keyword
, QCoverline
))
3746 to
[LFACE_OVERLINE_INDEX
] = value
;
3750 else if (EQ (keyword
, QCstrike_through
))
3755 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3759 else if (EQ (keyword
, QCbox
))
3762 value
= make_number (1);
3763 if (INTEGERP (value
)
3767 to
[LFACE_BOX_INDEX
] = value
;
3771 else if (EQ (keyword
, QCinverse_video
)
3772 || EQ (keyword
, QCreverse_video
))
3774 if (EQ (value
, Qt
) || NILP (value
))
3775 to
[LFACE_INVERSE_INDEX
] = value
;
3779 else if (EQ (keyword
, QCforeground
))
3781 if (STRINGP (value
))
3782 to
[LFACE_FOREGROUND_INDEX
] = value
;
3786 else if (EQ (keyword
, QCbackground
))
3788 if (STRINGP (value
))
3789 to
[LFACE_BACKGROUND_INDEX
] = value
;
3793 else if (EQ (keyword
, QCstipple
))
3795 #ifdef HAVE_X_WINDOWS
3796 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3797 if (!NILP (pixmap_p
))
3798 to
[LFACE_STIPPLE_INDEX
] = value
;
3803 else if (EQ (keyword
, QCwidth
))
3806 && face_numeric_swidth (value
) >= 0)
3807 to
[LFACE_SWIDTH_INDEX
] = value
;
3811 else if (EQ (keyword
, QCinherit
))
3813 /* This is not really very useful; it's just like a
3814 normal face reference. */
3815 if (! merge_face_ref (f
, value
, to
,
3816 err_msgs
, named_merge_points
))
3824 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
3828 face_ref
= XCDR (XCDR (face_ref
));
3833 /* This is a list of face refs. Those at the beginning of the
3834 list take precedence over what follows, so we have to merge
3835 from the end backwards. */
3836 Lisp_Object next
= XCDR (face_ref
);
3839 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
3841 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
3847 /* FACE_REF ought to be a face name. */
3848 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
3849 if (!ok
&& err_msgs
)
3850 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
3857 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3858 Sinternal_make_lisp_face
, 1, 2, 0,
3859 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3860 If FACE was not known as a face before, create a new one.
3861 If optional argument FRAME is specified, make a frame-local face
3862 for that frame. Otherwise operate on the global face definition.
3863 Value is a vector of face attributes. */)
3865 Lisp_Object face
, frame
;
3867 Lisp_Object global_lface
, lface
;
3871 CHECK_SYMBOL (face
);
3872 global_lface
= lface_from_face_name (NULL
, face
, 0);
3876 CHECK_LIVE_FRAME (frame
);
3878 lface
= lface_from_face_name (f
, face
, 0);
3881 f
= NULL
, lface
= Qnil
;
3883 /* Add a global definition if there is none. */
3884 if (NILP (global_lface
))
3886 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3888 AREF (global_lface
, 0) = Qface
;
3889 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3890 Vface_new_frame_defaults
);
3892 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3893 face id to Lisp face is given by the vector lface_id_to_name.
3894 The mapping from Lisp face to Lisp face id is given by the
3895 property `face' of the Lisp face name. */
3896 if (next_lface_id
== lface_id_to_name_size
)
3898 int new_size
= max (50, 2 * lface_id_to_name_size
);
3899 int sz
= new_size
* sizeof *lface_id_to_name
;
3900 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3901 lface_id_to_name_size
= new_size
;
3904 lface_id_to_name
[next_lface_id
] = face
;
3905 Fput (face
, Qface
, make_number (next_lface_id
));
3909 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3910 AREF (global_lface
, i
) = Qunspecified
;
3912 /* Add a frame-local definition. */
3917 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3919 AREF (lface
, 0) = Qface
;
3920 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3923 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3924 AREF (lface
, i
) = Qunspecified
;
3927 lface
= global_lface
;
3929 /* Changing a named face means that all realized faces depending on
3930 that face are invalid. Since we cannot tell which realized faces
3931 depend on the face, make sure they are all removed. This is done
3932 by incrementing face_change_count. The next call to
3933 init_iterator will then free realized faces. */
3934 if (NILP (Fget (face
, Qface_no_inherit
)))
3936 ++face_change_count
;
3937 ++windows_or_buffers_changed
;
3940 xassert (LFACEP (lface
));
3941 check_lface (lface
);
3946 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3947 Sinternal_lisp_face_p
, 1, 2, 0,
3948 doc
: /* Return non-nil if FACE names a face.
3949 If optional second argument FRAME is non-nil, check for the
3950 existence of a frame-local face with name FACE on that frame.
3951 Otherwise check for the existence of a global face. */)
3953 Lisp_Object face
, frame
;
3957 face
= resolve_face_name (face
, 1);
3961 CHECK_LIVE_FRAME (frame
);
3962 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3965 lface
= lface_from_face_name (NULL
, face
, 0);
3971 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3972 Sinternal_copy_lisp_face
, 4, 4, 0,
3973 doc
: /* Copy face FROM to TO.
3974 If FRAME is t, copy the global face definition of FROM.
3975 Otherwise, copy the frame-local definition of FROM on FRAME.
3976 If NEW-FRAME is a frame, copy that data into the frame-local
3977 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
3978 FRAME controls where the data is copied to.
3980 The value is TO. */)
3981 (from
, to
, frame
, new_frame
)
3982 Lisp_Object from
, to
, frame
, new_frame
;
3984 Lisp_Object lface
, copy
;
3986 CHECK_SYMBOL (from
);
3991 /* Copy global definition of FROM. We don't make copies of
3992 strings etc. because 20.2 didn't do it either. */
3993 lface
= lface_from_face_name (NULL
, from
, 1);
3994 copy
= Finternal_make_lisp_face (to
, Qnil
);
3998 /* Copy frame-local definition of FROM. */
3999 if (NILP (new_frame
))
4001 CHECK_LIVE_FRAME (frame
);
4002 CHECK_LIVE_FRAME (new_frame
);
4003 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
4004 copy
= Finternal_make_lisp_face (to
, new_frame
);
4007 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
4008 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
4010 /* Changing a named face means that all realized faces depending on
4011 that face are invalid. Since we cannot tell which realized faces
4012 depend on the face, make sure they are all removed. This is done
4013 by incrementing face_change_count. The next call to
4014 init_iterator will then free realized faces. */
4015 if (NILP (Fget (to
, Qface_no_inherit
)))
4017 ++face_change_count
;
4018 ++windows_or_buffers_changed
;
4025 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
4026 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
4027 doc
: /* Set attribute ATTR of FACE to VALUE.
4028 FRAME being a frame means change the face on that frame.
4029 FRAME nil means change the face of the selected frame.
4030 FRAME t means change the default for new frames.
4031 FRAME 0 means change the face on all frames, and change the default
4033 (face
, attr
, value
, frame
)
4034 Lisp_Object face
, attr
, value
, frame
;
4037 Lisp_Object old_value
= Qnil
;
4038 /* Set 1 if ATTR is QCfont. */
4039 int font_attr_p
= 0;
4040 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
4041 int font_related_attr_p
= 0;
4043 CHECK_SYMBOL (face
);
4044 CHECK_SYMBOL (attr
);
4046 face
= resolve_face_name (face
, 1);
4048 /* If FRAME is 0, change face on all frames, and change the
4049 default for new frames. */
4050 if (INTEGERP (frame
) && XINT (frame
) == 0)
4053 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
4054 FOR_EACH_FRAME (tail
, frame
)
4055 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4059 /* Set lface to the Lisp attribute vector of FACE. */
4062 lface
= lface_from_face_name (NULL
, face
, 1);
4064 /* When updating face-new-frame-defaults, we put :ignore-defface
4065 where the caller wants `unspecified'. This forces the frame
4066 defaults to ignore the defface value. Otherwise, the defface
4067 will take effect, which is generally not what is intended.
4068 The value of that attribute will be inherited from some other
4069 face during face merging. See internal_merge_in_global_face. */
4070 if (UNSPECIFIEDP (value
))
4071 value
= Qignore_defface
;
4076 frame
= selected_frame
;
4078 CHECK_LIVE_FRAME (frame
);
4079 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4081 /* If a frame-local face doesn't exist yet, create one. */
4083 lface
= Finternal_make_lisp_face (face
, frame
);
4086 if (EQ (attr
, QCfamily
))
4088 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4090 CHECK_STRING (value
);
4091 if (SCHARS (value
) == 0)
4092 signal_error ("Invalid face family", value
);
4094 old_value
= LFACE_FAMILY (lface
);
4095 LFACE_FAMILY (lface
) = value
;
4096 font_related_attr_p
= 1;
4098 else if (EQ (attr
, QCheight
))
4100 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4104 test
= (EQ (face
, Qdefault
)
4106 /* The default face must have an absolute size,
4107 otherwise, we do a test merge with a random
4108 height to see if VALUE's ok. */
4109 : merge_face_heights (value
, make_number (10), Qnil
));
4111 if (!INTEGERP (test
) || XINT (test
) <= 0)
4112 signal_error ("Invalid face height", value
);
4115 old_value
= LFACE_HEIGHT (lface
);
4116 LFACE_HEIGHT (lface
) = value
;
4117 font_related_attr_p
= 1;
4119 else if (EQ (attr
, QCweight
))
4121 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4123 CHECK_SYMBOL (value
);
4124 if (face_numeric_weight (value
) < 0)
4125 signal_error ("Invalid face weight", value
);
4127 old_value
= LFACE_WEIGHT (lface
);
4128 LFACE_WEIGHT (lface
) = value
;
4129 font_related_attr_p
= 1;
4131 else if (EQ (attr
, QCslant
))
4133 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4135 CHECK_SYMBOL (value
);
4136 if (face_numeric_slant (value
) < 0)
4137 signal_error ("Invalid face slant", value
);
4139 old_value
= LFACE_SLANT (lface
);
4140 LFACE_SLANT (lface
) = value
;
4141 font_related_attr_p
= 1;
4143 else if (EQ (attr
, QCunderline
))
4145 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4146 if ((SYMBOLP (value
)
4148 && !EQ (value
, Qnil
))
4149 /* Underline color. */
4151 && SCHARS (value
) == 0))
4152 signal_error ("Invalid face underline", value
);
4154 old_value
= LFACE_UNDERLINE (lface
);
4155 LFACE_UNDERLINE (lface
) = value
;
4157 else if (EQ (attr
, QCoverline
))
4159 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4160 if ((SYMBOLP (value
)
4162 && !EQ (value
, Qnil
))
4163 /* Overline color. */
4165 && SCHARS (value
) == 0))
4166 signal_error ("Invalid face overline", value
);
4168 old_value
= LFACE_OVERLINE (lface
);
4169 LFACE_OVERLINE (lface
) = value
;
4171 else if (EQ (attr
, QCstrike_through
))
4173 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4174 if ((SYMBOLP (value
)
4176 && !EQ (value
, Qnil
))
4177 /* Strike-through color. */
4179 && SCHARS (value
) == 0))
4180 signal_error ("Invalid face strike-through", value
);
4182 old_value
= LFACE_STRIKE_THROUGH (lface
);
4183 LFACE_STRIKE_THROUGH (lface
) = value
;
4185 else if (EQ (attr
, QCbox
))
4189 /* Allow t meaning a simple box of width 1 in foreground color
4192 value
= make_number (1);
4194 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
4196 else if (NILP (value
))
4198 else if (INTEGERP (value
))
4199 valid_p
= XINT (value
) != 0;
4200 else if (STRINGP (value
))
4201 valid_p
= SCHARS (value
) > 0;
4202 else if (CONSP (value
))
4218 if (EQ (k
, QCline_width
))
4220 if (!INTEGERP (v
) || XINT (v
) == 0)
4223 else if (EQ (k
, QCcolor
))
4225 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
4228 else if (EQ (k
, QCstyle
))
4230 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4237 valid_p
= NILP (tem
);
4243 signal_error ("Invalid face box", value
);
4245 old_value
= LFACE_BOX (lface
);
4246 LFACE_BOX (lface
) = value
;
4248 else if (EQ (attr
, QCinverse_video
)
4249 || EQ (attr
, QCreverse_video
))
4251 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4253 CHECK_SYMBOL (value
);
4254 if (!EQ (value
, Qt
) && !NILP (value
))
4255 signal_error ("Invalid inverse-video face attribute value", value
);
4257 old_value
= LFACE_INVERSE (lface
);
4258 LFACE_INVERSE (lface
) = value
;
4260 else if (EQ (attr
, QCforeground
))
4262 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4264 /* Don't check for valid color names here because it depends
4265 on the frame (display) whether the color will be valid
4266 when the face is realized. */
4267 CHECK_STRING (value
);
4268 if (SCHARS (value
) == 0)
4269 signal_error ("Empty foreground color value", value
);
4271 old_value
= LFACE_FOREGROUND (lface
);
4272 LFACE_FOREGROUND (lface
) = value
;
4274 else if (EQ (attr
, QCbackground
))
4276 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4278 /* Don't check for valid color names here because it depends
4279 on the frame (display) whether the color will be valid
4280 when the face is realized. */
4281 CHECK_STRING (value
);
4282 if (SCHARS (value
) == 0)
4283 signal_error ("Empty background color value", value
);
4285 old_value
= LFACE_BACKGROUND (lface
);
4286 LFACE_BACKGROUND (lface
) = value
;
4288 else if (EQ (attr
, QCstipple
))
4290 #ifdef HAVE_X_WINDOWS
4291 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
4293 && NILP (Fbitmap_spec_p (value
)))
4294 signal_error ("Invalid stipple attribute", value
);
4295 old_value
= LFACE_STIPPLE (lface
);
4296 LFACE_STIPPLE (lface
) = value
;
4297 #endif /* HAVE_X_WINDOWS */
4299 else if (EQ (attr
, QCwidth
))
4301 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4303 CHECK_SYMBOL (value
);
4304 if (face_numeric_swidth (value
) < 0)
4305 signal_error ("Invalid face width", value
);
4307 old_value
= LFACE_SWIDTH (lface
);
4308 LFACE_SWIDTH (lface
) = value
;
4309 font_related_attr_p
= 1;
4311 else if (EQ (attr
, QCfont
))
4313 #ifdef HAVE_WINDOW_SYSTEM
4314 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4316 /* Set font-related attributes of the Lisp face from an XLFD
4322 f
= SELECTED_FRAME ();
4324 f
= check_x_frame (frame
);
4326 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4328 CHECK_STRING (value
);
4330 /* VALUE may be a fontset name or an alias of fontset. In
4331 such a case, use the base fontset name. */
4332 tmp
= Fquery_fontset (value
, Qnil
);
4336 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4337 signal_error ("Invalid font or fontset name", value
);
4342 #endif /* HAVE_WINDOW_SYSTEM */
4344 else if (EQ (attr
, QCinherit
))
4347 if (SYMBOLP (value
))
4350 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4351 if (!SYMBOLP (XCAR (tail
)))
4354 LFACE_INHERIT (lface
) = value
;
4356 signal_error ("Invalid face inheritance", value
);
4358 else if (EQ (attr
, QCbold
))
4360 old_value
= LFACE_WEIGHT (lface
);
4361 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4362 font_related_attr_p
= 1;
4364 else if (EQ (attr
, QCitalic
))
4366 old_value
= LFACE_SLANT (lface
);
4367 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4368 font_related_attr_p
= 1;
4371 signal_error ("Invalid face attribute name", attr
);
4373 if (font_related_attr_p
4374 && !UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4375 /* If a font-related attribute other than QCfont is specified, the
4376 original `font' attribute nor that of default face is useless
4377 to determine a new font. Thus, we set it to nil so that font
4378 selection mechanism doesn't use it. */
4379 LFACE_FONT (lface
) = Qnil
;
4381 /* Changing a named face means that all realized faces depending on
4382 that face are invalid. Since we cannot tell which realized faces
4383 depend on the face, make sure they are all removed. This is done
4384 by incrementing face_change_count. The next call to
4385 init_iterator will then free realized faces. */
4387 && NILP (Fget (face
, Qface_no_inherit
))
4388 && (EQ (attr
, QCfont
)
4389 || NILP (Fequal (old_value
, value
))))
4391 ++face_change_count
;
4392 ++windows_or_buffers_changed
;
4395 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
4396 && NILP (Fequal (old_value
, value
)))
4402 if (EQ (face
, Qdefault
))
4404 #ifdef HAVE_WINDOW_SYSTEM
4405 /* Changed font-related attributes of the `default' face are
4406 reflected in changed `font' frame parameters. */
4408 && (font_related_attr_p
|| font_attr_p
)
4409 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4410 set_font_frame_param (frame
, lface
);
4412 #endif /* HAVE_WINDOW_SYSTEM */
4414 if (EQ (attr
, QCforeground
))
4415 param
= Qforeground_color
;
4416 else if (EQ (attr
, QCbackground
))
4417 param
= Qbackground_color
;
4419 #ifdef HAVE_WINDOW_SYSTEM
4421 else if (EQ (face
, Qscroll_bar
))
4423 /* Changing the colors of `scroll-bar' sets frame parameters
4424 `scroll-bar-foreground' and `scroll-bar-background'. */
4425 if (EQ (attr
, QCforeground
))
4426 param
= Qscroll_bar_foreground
;
4427 else if (EQ (attr
, QCbackground
))
4428 param
= Qscroll_bar_background
;
4430 #endif /* not WINDOWSNT */
4431 else if (EQ (face
, Qborder
))
4433 /* Changing background color of `border' sets frame parameter
4435 if (EQ (attr
, QCbackground
))
4436 param
= Qborder_color
;
4438 else if (EQ (face
, Qcursor
))
4440 /* Changing background color of `cursor' sets frame parameter
4442 if (EQ (attr
, QCbackground
))
4443 param
= Qcursor_color
;
4445 else if (EQ (face
, Qmouse
))
4447 /* Changing background color of `mouse' sets frame parameter
4449 if (EQ (attr
, QCbackground
))
4450 param
= Qmouse_color
;
4452 #endif /* HAVE_WINDOW_SYSTEM */
4453 else if (EQ (face
, Qmenu
))
4455 /* Indicate that we have to update the menu bar when
4456 realizing faces on FRAME. FRAME t change the
4457 default for new frames. We do this by setting
4458 setting the flag in new face caches */
4461 struct frame
*f
= XFRAME (frame
);
4462 if (FRAME_FACE_CACHE (f
) == NULL
)
4463 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4464 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4467 menu_face_changed_default
= 1;
4473 /* Update `default-frame-alist', which is used for new frames. */
4475 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4478 /* Update the current frame's parameters. */
4481 cons
= XCAR (Vparam_value_alist
);
4482 XSETCAR (cons
, param
);
4483 XSETCDR (cons
, value
);
4484 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4493 #ifdef HAVE_WINDOW_SYSTEM
4495 /* Set the `font' frame parameter of FRAME determined from `default'
4496 face attributes LFACE. If a face or fontset name is explicitely
4497 specfied in LFACE, use it as is. Otherwise, determine a font name
4498 from the other font-related atrributes of LFACE. In that case, if
4499 there's no matching font, signals an error. */
4502 set_font_frame_param (frame
, lface
)
4503 Lisp_Object frame
, lface
;
4505 struct frame
*f
= XFRAME (frame
);
4507 if (FRAME_WINDOW_P (f
))
4509 Lisp_Object font_name
;
4512 if (STRINGP (LFACE_FONT (lface
)))
4513 font_name
= LFACE_FONT (lface
);
4516 /* Choose a font name that reflects LFACE's attributes and has
4517 the registry and encoding pattern specified in the default
4518 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4519 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4521 error ("No font matches the specified attribute");
4522 font_name
= build_string (font
);
4526 f
->default_face_done_p
= 0;
4527 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4532 /* Update the corresponding face when frame parameter PARAM on frame F
4533 has been assigned the value NEW_VALUE. */
4536 update_face_from_frame_parameter (f
, param
, new_value
)
4538 Lisp_Object param
, new_value
;
4540 Lisp_Object face
= Qnil
;
4543 /* If there are no faces yet, give up. This is the case when called
4544 from Fx_create_frame, and we do the necessary things later in
4545 face-set-after-frame-defaults. */
4546 if (NILP (f
->face_alist
))
4549 if (EQ (param
, Qforeground_color
))
4552 lface
= lface_from_face_name (f
, face
, 1);
4553 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4554 ? new_value
: Qunspecified
);
4555 realize_basic_faces (f
);
4557 else if (EQ (param
, Qbackground_color
))
4561 /* Changing the background color might change the background
4562 mode, so that we have to load new defface specs.
4563 Call frame-set-background-mode to do that. */
4564 XSETFRAME (frame
, f
);
4565 call1 (Qframe_set_background_mode
, frame
);
4568 lface
= lface_from_face_name (f
, face
, 1);
4569 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4570 ? new_value
: Qunspecified
);
4571 realize_basic_faces (f
);
4573 else if (EQ (param
, Qborder_color
))
4576 lface
= lface_from_face_name (f
, face
, 1);
4577 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4578 ? new_value
: Qunspecified
);
4580 else if (EQ (param
, Qcursor_color
))
4583 lface
= lface_from_face_name (f
, face
, 1);
4584 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4585 ? new_value
: Qunspecified
);
4587 else if (EQ (param
, Qmouse_color
))
4590 lface
= lface_from_face_name (f
, face
, 1);
4591 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4592 ? new_value
: Qunspecified
);
4595 /* Changing a named face means that all realized faces depending on
4596 that face are invalid. Since we cannot tell which realized faces
4597 depend on the face, make sure they are all removed. This is done
4598 by incrementing face_change_count. The next call to
4599 init_iterator will then free realized faces. */
4601 && NILP (Fget (face
, Qface_no_inherit
)))
4603 ++face_change_count
;
4604 ++windows_or_buffers_changed
;
4609 /* Get the value of X resource RESOURCE, class CLASS for the display
4610 of frame FRAME. This is here because ordinary `x-get-resource'
4611 doesn't take a frame argument. */
4613 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4614 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4615 (resource
, class, frame
)
4616 Lisp_Object resource
, class, frame
;
4618 Lisp_Object value
= Qnil
;
4619 CHECK_STRING (resource
);
4620 CHECK_STRING (class);
4621 CHECK_LIVE_FRAME (frame
);
4623 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4624 resource
, class, Qnil
, Qnil
);
4630 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4631 If VALUE is "on" or "true", return t. If VALUE is "off" or
4632 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4633 error; if SIGNAL_P is zero, return 0. */
4636 face_boolean_x_resource_value (value
, signal_p
)
4640 Lisp_Object result
= make_number (0);
4642 xassert (STRINGP (value
));
4644 if (xstricmp (SDATA (value
), "on") == 0
4645 || xstricmp (SDATA (value
), "true") == 0)
4647 else if (xstricmp (SDATA (value
), "off") == 0
4648 || xstricmp (SDATA (value
), "false") == 0)
4650 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4651 result
= Qunspecified
;
4653 signal_error ("Invalid face attribute value from X resource", value
);
4659 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4660 Finternal_set_lisp_face_attribute_from_resource
,
4661 Sinternal_set_lisp_face_attribute_from_resource
,
4662 3, 4, 0, doc
: /* */)
4663 (face
, attr
, value
, frame
)
4664 Lisp_Object face
, attr
, value
, frame
;
4666 CHECK_SYMBOL (face
);
4667 CHECK_SYMBOL (attr
);
4668 CHECK_STRING (value
);
4670 if (xstricmp (SDATA (value
), "unspecified") == 0)
4671 value
= Qunspecified
;
4672 else if (EQ (attr
, QCheight
))
4674 value
= Fstring_to_number (value
, make_number (10));
4675 if (XINT (value
) <= 0)
4676 signal_error ("Invalid face height from X resource", value
);
4678 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4679 value
= face_boolean_x_resource_value (value
, 1);
4680 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4681 value
= intern (SDATA (value
));
4682 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4683 value
= face_boolean_x_resource_value (value
, 1);
4684 else if (EQ (attr
, QCunderline
)
4685 || EQ (attr
, QCoverline
)
4686 || EQ (attr
, QCstrike_through
))
4688 Lisp_Object boolean_value
;
4690 /* If the result of face_boolean_x_resource_value is t or nil,
4691 VALUE does NOT specify a color. */
4692 boolean_value
= face_boolean_x_resource_value (value
, 0);
4693 if (SYMBOLP (boolean_value
))
4694 value
= boolean_value
;
4696 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
4697 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4699 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4702 #endif /* HAVE_WINDOW_SYSTEM */
4705 /***********************************************************************
4707 ***********************************************************************/
4709 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4711 /* Make menus on frame F appear as specified by the `menu' face. */
4714 x_update_menu_appearance (f
)
4717 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4721 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4725 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4726 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4727 const char *myname
= SDATA (Vx_resource_name
);
4730 const char *popup_path
= "popup_menu";
4732 const char *popup_path
= "menu.popup";
4735 if (STRINGP (LFACE_FOREGROUND (lface
)))
4737 sprintf (line
, "%s.%s*foreground: %s",
4739 SDATA (LFACE_FOREGROUND (lface
)));
4740 XrmPutLineResource (&rdb
, line
);
4741 sprintf (line
, "%s.pane.menubar*foreground: %s",
4742 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4743 XrmPutLineResource (&rdb
, line
);
4747 if (STRINGP (LFACE_BACKGROUND (lface
)))
4749 sprintf (line
, "%s.%s*background: %s",
4751 SDATA (LFACE_BACKGROUND (lface
)));
4752 XrmPutLineResource (&rdb
, line
);
4753 sprintf (line
, "%s.pane.menubar*background: %s",
4754 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4755 XrmPutLineResource (&rdb
, line
);
4760 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4761 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4762 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4763 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4764 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4765 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4768 const char *suffix
= "List";
4771 #if defined HAVE_X_I18N
4773 const char *suffix
= "Set";
4775 const char *suffix
= "";
4779 #if defined HAVE_X_I18N
4780 extern char *xic_create_fontsetname
4781 P_ ((char *base_fontname
, Bool motif
));
4782 char *fontsetname
= xic_create_fontsetname (face
->font_name
, motif
);
4784 char *fontsetname
= face
->font_name
;
4786 sprintf (line
, "%s.pane.menubar*font%s: %s",
4787 myname
, suffix
, fontsetname
);
4788 XrmPutLineResource (&rdb
, line
);
4789 sprintf (line
, "%s.%s*font%s: %s",
4790 myname
, popup_path
, suffix
, fontsetname
);
4791 XrmPutLineResource (&rdb
, line
);
4793 if (fontsetname
!= face
->font_name
)
4794 xfree (fontsetname
);
4797 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4798 free_frame_menubar (f
);
4802 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4805 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4806 Sface_attribute_relative_p
,
4808 doc
: /* Check whether a face attribute value is relative.
4809 Specifically, this function returns t if the attribute ATTRIBUTE
4810 with the value VALUE is relative.
4812 A relative value is one that doesn't entirely override whatever is
4813 inherited from another face. For most possible attributes,
4814 the only relative value that users see is `unspecified'.
4815 However, for :height, floating point values are also relative. */)
4817 Lisp_Object attribute
, value
;
4819 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
4821 else if (EQ (attribute
, QCheight
))
4822 return INTEGERP (value
) ? Qnil
: Qt
;
4827 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4829 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4830 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4831 the result will be absolute, otherwise it will be relative. */)
4832 (attribute
, value1
, value2
)
4833 Lisp_Object attribute
, value1
, value2
;
4835 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
4837 else if (EQ (attribute
, QCheight
))
4838 return merge_face_heights (value1
, value2
, value1
);
4844 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4845 Sinternal_get_lisp_face_attribute
,
4847 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4848 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4849 face attribute name, signal an error.
4850 If the optional argument FRAME is given, report on face SYMBOL in that
4851 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
4852 frames). If FRAME is omitted or nil, use the selected frame. */)
4853 (symbol
, keyword
, frame
)
4854 Lisp_Object symbol
, keyword
, frame
;
4856 Lisp_Object lface
, value
= Qnil
;
4858 CHECK_SYMBOL (symbol
);
4859 CHECK_SYMBOL (keyword
);
4862 lface
= lface_from_face_name (NULL
, symbol
, 1);
4866 frame
= selected_frame
;
4867 CHECK_LIVE_FRAME (frame
);
4868 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4871 if (EQ (keyword
, QCfamily
))
4872 value
= LFACE_FAMILY (lface
);
4873 else if (EQ (keyword
, QCheight
))
4874 value
= LFACE_HEIGHT (lface
);
4875 else if (EQ (keyword
, QCweight
))
4876 value
= LFACE_WEIGHT (lface
);
4877 else if (EQ (keyword
, QCslant
))
4878 value
= LFACE_SLANT (lface
);
4879 else if (EQ (keyword
, QCunderline
))
4880 value
= LFACE_UNDERLINE (lface
);
4881 else if (EQ (keyword
, QCoverline
))
4882 value
= LFACE_OVERLINE (lface
);
4883 else if (EQ (keyword
, QCstrike_through
))
4884 value
= LFACE_STRIKE_THROUGH (lface
);
4885 else if (EQ (keyword
, QCbox
))
4886 value
= LFACE_BOX (lface
);
4887 else if (EQ (keyword
, QCinverse_video
)
4888 || EQ (keyword
, QCreverse_video
))
4889 value
= LFACE_INVERSE (lface
);
4890 else if (EQ (keyword
, QCforeground
))
4891 value
= LFACE_FOREGROUND (lface
);
4892 else if (EQ (keyword
, QCbackground
))
4893 value
= LFACE_BACKGROUND (lface
);
4894 else if (EQ (keyword
, QCstipple
))
4895 value
= LFACE_STIPPLE (lface
);
4896 else if (EQ (keyword
, QCwidth
))
4897 value
= LFACE_SWIDTH (lface
);
4898 else if (EQ (keyword
, QCinherit
))
4899 value
= LFACE_INHERIT (lface
);
4900 else if (EQ (keyword
, QCfont
))
4901 value
= LFACE_FONT (lface
);
4903 signal_error ("Invalid face attribute name", keyword
);
4905 if (IGNORE_DEFFACE_P (value
))
4906 return Qunspecified
;
4912 DEFUN ("internal-lisp-face-attribute-values",
4913 Finternal_lisp_face_attribute_values
,
4914 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4915 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4916 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4920 Lisp_Object result
= Qnil
;
4922 CHECK_SYMBOL (attr
);
4924 if (EQ (attr
, QCweight
)
4925 || EQ (attr
, QCslant
)
4926 || EQ (attr
, QCwidth
))
4928 /* Extract permissible symbols from tables. */
4929 struct table_entry
*table
;
4932 if (EQ (attr
, QCweight
))
4933 table
= weight_table
, dim
= DIM (weight_table
);
4934 else if (EQ (attr
, QCslant
))
4935 table
= slant_table
, dim
= DIM (slant_table
);
4937 table
= swidth_table
, dim
= DIM (swidth_table
);
4939 for (i
= 0; i
< dim
; ++i
)
4941 Lisp_Object symbol
= *table
[i
].symbol
;
4942 Lisp_Object tail
= result
;
4945 && !EQ (XCAR (tail
), symbol
))
4949 result
= Fcons (symbol
, result
);
4952 else if (EQ (attr
, QCunderline
))
4953 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4954 else if (EQ (attr
, QCoverline
))
4955 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4956 else if (EQ (attr
, QCstrike_through
))
4957 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4958 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4959 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4965 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4966 Sinternal_merge_in_global_face
, 2, 2, 0,
4967 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4968 Default face attributes override any local face attributes. */)
4970 Lisp_Object face
, frame
;
4973 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4975 CHECK_LIVE_FRAME (frame
);
4976 global_lface
= lface_from_face_name (NULL
, face
, 1);
4977 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4978 if (NILP (local_lface
))
4979 local_lface
= Finternal_make_lisp_face (face
, frame
);
4981 /* Make every specified global attribute override the local one.
4982 BEWARE!! This is only used from `face-set-after-frame-default' where
4983 the local frame is defined from default specs in `face-defface-spec'
4984 and those should be overridden by global settings. Hence the strange
4985 "global before local" priority. */
4986 lvec
= XVECTOR (local_lface
)->contents
;
4987 gvec
= XVECTOR (global_lface
)->contents
;
4988 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4989 if (! UNSPECIFIEDP (gvec
[i
]))
4991 if (IGNORE_DEFFACE_P (gvec
[i
]))
4992 lvec
[i
] = Qunspecified
;
5001 /* The following function is implemented for compatibility with 20.2.
5002 The function is used in x-resolve-fonts when it is asked to
5003 return fonts with the same size as the font of a face. This is
5004 done in fontset.el. */
5006 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
5007 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
5008 If the optional argument FRAME is given, report on face FACE in that frame.
5009 If FRAME is t, report on the defaults for face FACE (for new frames).
5010 The font default for a face is either nil, or a list
5011 of the form (bold), (italic) or (bold italic).
5012 If FRAME is omitted or nil, use the selected frame. */)
5014 Lisp_Object face
, frame
;
5018 Lisp_Object result
= Qnil
;
5019 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
5021 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
5022 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
5023 result
= Fcons (Qbold
, result
);
5025 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
5026 && !EQ (LFACE_SLANT (lface
), Qnormal
))
5027 result
= Fcons (Qitalic
, result
);
5033 struct frame
*f
= frame_or_selected_frame (frame
, 1);
5034 int face_id
= lookup_named_face (f
, face
, 0, 1);
5035 struct face
*face
= FACE_FROM_ID (f
, face_id
);
5036 return face
? build_string (face
->font_name
) : Qnil
;
5041 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
5042 all attributes are `equal'. Tries to be fast because this function
5043 is called quite often. */
5046 face_attr_equal_p (v1
, v2
)
5049 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
5050 and the other is specified. */
5051 if (XTYPE (v1
) != XTYPE (v2
))
5060 if (SBYTES (v1
) != SBYTES (v2
))
5063 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
5070 return !NILP (Fequal (v1
, v2
));
5075 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
5076 all attributes are `equal'. Tries to be fast because this function
5077 is called quite often. */
5080 lface_equal_p (v1
, v2
)
5081 Lisp_Object
*v1
, *v2
;
5085 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
5086 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
5092 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
5093 Sinternal_lisp_face_equal_p
, 2, 3, 0,
5094 doc
: /* True if FACE1 and FACE2 are equal.
5095 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
5096 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
5097 If FRAME is omitted or nil, use the selected frame. */)
5098 (face1
, face2
, frame
)
5099 Lisp_Object face1
, face2
, frame
;
5103 Lisp_Object lface1
, lface2
;
5108 /* Don't use check_x_frame here because this function is called
5109 before X frames exist. At that time, if FRAME is nil,
5110 selected_frame will be used which is the frame dumped with
5111 Emacs. That frame is not an X frame. */
5112 f
= frame_or_selected_frame (frame
, 2);
5114 lface1
= lface_from_face_name (f
, face1
, 1);
5115 lface2
= lface_from_face_name (f
, face2
, 1);
5116 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
5117 XVECTOR (lface2
)->contents
);
5118 return equal_p
? Qt
: Qnil
;
5122 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
5123 Sinternal_lisp_face_empty_p
, 1, 2, 0,
5124 doc
: /* True if FACE has no attribute specified.
5125 If the optional argument FRAME is given, report on face FACE in that frame.
5126 If FRAME is t, report on the defaults for face FACE (for new frames).
5127 If FRAME is omitted or nil, use the selected frame. */)
5129 Lisp_Object face
, frame
;
5136 frame
= selected_frame
;
5137 CHECK_LIVE_FRAME (frame
);
5141 lface
= lface_from_face_name (NULL
, face
, 1);
5143 lface
= lface_from_face_name (f
, face
, 1);
5145 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5146 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5149 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5153 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5155 doc
: /* Return an alist of frame-local faces defined on FRAME.
5156 For internal use only. */)
5160 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5161 return f
->face_alist
;
5165 /* Return a hash code for Lisp string STRING with case ignored. Used
5166 below in computing a hash value for a Lisp face. */
5168 static INLINE
unsigned
5169 hash_string_case_insensitive (string
)
5172 const unsigned char *s
;
5174 xassert (STRINGP (string
));
5175 for (s
= SDATA (string
); *s
; ++s
)
5176 hash
= (hash
<< 1) ^ tolower (*s
);
5181 /* Return a hash code for face attribute vector V. */
5183 static INLINE
unsigned
5187 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5188 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5189 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5190 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5191 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5192 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5193 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5197 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5198 considering charsets/registries). They do if they specify the same
5199 family, point size, weight, width, slant, and fontset. Both LFACE1
5200 and LFACE2 must be fully-specified. */
5203 lface_same_font_attributes_p (lface1
, lface2
)
5204 Lisp_Object
*lface1
, *lface2
;
5206 xassert (lface_fully_specified_p (lface1
)
5207 && lface_fully_specified_p (lface2
));
5208 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5209 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5210 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5211 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5212 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5213 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5214 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5215 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5216 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5217 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5218 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5219 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5224 /***********************************************************************
5226 ***********************************************************************/
5228 /* Allocate and return a new realized face for Lisp face attribute
5231 static struct face
*
5232 make_realized_face (attr
)
5235 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5236 bzero (face
, sizeof *face
);
5237 face
->ascii_face
= face
;
5238 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5243 /* Free realized face FACE, including its X resources. FACE may
5247 free_realized_face (f
, face
)
5253 #ifdef HAVE_WINDOW_SYSTEM
5254 if (FRAME_WINDOW_P (f
))
5256 /* Free fontset of FACE if it is ASCII face. */
5257 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5258 free_face_fontset (f
, face
);
5261 x_free_gc (f
, face
->gc
);
5265 free_face_colors (f
, face
);
5266 x_destroy_bitmap (f
, face
->stipple
);
5268 #endif /* HAVE_WINDOW_SYSTEM */
5275 /* Prepare face FACE for subsequent display on frame F. This
5276 allocated GCs if they haven't been allocated yet or have been freed
5277 by clearing the face cache. */
5280 prepare_face_for_display (f
, face
)
5284 #ifdef HAVE_WINDOW_SYSTEM
5285 xassert (FRAME_WINDOW_P (f
));
5290 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5292 xgcv
.foreground
= face
->foreground
;
5293 xgcv
.background
= face
->background
;
5294 #ifdef HAVE_X_WINDOWS
5295 xgcv
.graphics_exposures
= False
;
5297 /* The font of FACE may be null if we couldn't load it. */
5300 #ifdef HAVE_X_WINDOWS
5301 xgcv
.font
= face
->font
->fid
;
5304 xgcv
.font
= face
->font
;
5307 xgcv
.font
= face
->font
;
5313 #ifdef HAVE_X_WINDOWS
5316 xgcv
.fill_style
= FillOpaqueStippled
;
5317 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5318 mask
|= GCFillStyle
| GCStipple
;
5321 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5324 #endif /* HAVE_WINDOW_SYSTEM */
5328 /* Returns the `distance' between the colors X and Y. */
5331 color_distance (x
, y
)
5334 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5335 Quoting from that paper:
5337 This formula has results that are very close to L*u*v* (with the
5338 modified lightness curve) and, more importantly, it is a more even
5339 algorithm: it does not have a range of colours where it suddenly
5340 gives far from optimal results.
5342 See <http://www.compuphase.com/cmetric.htm> for more info. */
5344 long r
= (x
->red
- y
->red
) >> 8;
5345 long g
= (x
->green
- y
->green
) >> 8;
5346 long b
= (x
->blue
- y
->blue
) >> 8;
5347 long r_mean
= (x
->red
+ y
->red
) >> 9;
5350 (((512 + r_mean
) * r
* r
) >> 8)
5352 + (((767 - r_mean
) * b
* b
) >> 8);
5356 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5357 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5358 COLOR1 and COLOR2 may be either strings containing the color name,
5359 or lists of the form (RED GREEN BLUE).
5360 If FRAME is unspecified or nil, the current frame is used. */)
5361 (color1
, color2
, frame
)
5362 Lisp_Object color1
, color2
, frame
;
5365 XColor cdef1
, cdef2
;
5368 frame
= selected_frame
;
5369 CHECK_LIVE_FRAME (frame
);
5372 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
5373 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
5374 signal_error ("Invalid color", color1
);
5375 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
5376 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
5377 signal_error ("Invalid color", color2
);
5379 return make_number (color_distance (&cdef1
, &cdef2
));
5383 /***********************************************************************
5385 ***********************************************************************/
5387 /* Return a new face cache for frame F. */
5389 static struct face_cache
*
5393 struct face_cache
*c
;
5396 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5397 bzero (c
, sizeof *c
);
5398 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5399 c
->buckets
= (struct face
**) xmalloc (size
);
5400 bzero (c
->buckets
, size
);
5402 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5404 c
->menu_face_changed_p
= menu_face_changed_default
;
5409 /* Clear out all graphics contexts for all realized faces, except for
5410 the basic faces. This should be done from time to time just to avoid
5411 keeping too many graphics contexts that are no longer needed. */
5415 struct face_cache
*c
;
5417 if (c
&& FRAME_WINDOW_P (c
->f
))
5419 #ifdef HAVE_WINDOW_SYSTEM
5421 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5423 struct face
*face
= c
->faces_by_id
[i
];
5424 if (face
&& face
->gc
)
5426 x_free_gc (c
->f
, face
->gc
);
5430 #endif /* HAVE_WINDOW_SYSTEM */
5435 /* Free all realized faces in face cache C, including basic faces.
5436 C may be null. If faces are freed, make sure the frame's current
5437 matrix is marked invalid, so that a display caused by an expose
5438 event doesn't try to use faces we destroyed. */
5441 free_realized_faces (c
)
5442 struct face_cache
*c
;
5447 struct frame
*f
= c
->f
;
5449 /* We must block input here because we can't process X events
5450 safely while only some faces are freed, or when the frame's
5451 current matrix still references freed faces. */
5454 for (i
= 0; i
< c
->used
; ++i
)
5456 free_realized_face (f
, c
->faces_by_id
[i
]);
5457 c
->faces_by_id
[i
] = NULL
;
5461 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5462 bzero (c
->buckets
, size
);
5464 /* Must do a thorough redisplay the next time. Mark current
5465 matrices as invalid because they will reference faces freed
5466 above. This function is also called when a frame is
5467 destroyed. In this case, the root window of F is nil. */
5468 if (WINDOWP (f
->root_window
))
5470 clear_current_matrices (f
);
5471 ++windows_or_buffers_changed
;
5479 /* Free all faces realized for multibyte characters on frame F that
5483 free_realized_multibyte_face (f
, fontset
)
5487 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5491 /* We must block input here because we can't process X events safely
5492 while only some faces are freed, or when the frame's current
5493 matrix still references freed faces. */
5496 for (i
= 0; i
< cache
->used
; i
++)
5498 face
= cache
->faces_by_id
[i
];
5500 && face
!= face
->ascii_face
5501 && face
->fontset
== fontset
)
5503 uncache_face (cache
, face
);
5504 free_realized_face (f
, face
);
5508 /* Must do a thorough redisplay the next time. Mark current
5509 matrices as invalid because they will reference faces freed
5510 above. This function is also called when a frame is destroyed.
5511 In this case, the root window of F is nil. */
5512 if (WINDOWP (f
->root_window
))
5514 clear_current_matrices (f
);
5515 ++windows_or_buffers_changed
;
5522 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5523 This is done after attributes of a named face have been changed,
5524 because we can't tell which realized faces depend on that face. */
5527 free_all_realized_faces (frame
)
5533 FOR_EACH_FRAME (rest
, frame
)
5534 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5537 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5541 /* Free face cache C and faces in it, including their X resources. */
5545 struct face_cache
*c
;
5549 free_realized_faces (c
);
5551 xfree (c
->faces_by_id
);
5557 /* Cache realized face FACE in face cache C. HASH is the hash value
5558 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5559 collision list of the face hash table of C. This is done because
5560 otherwise lookup_face would find FACE for every character, even if
5561 faces with the same attributes but for specific characters exist. */
5564 cache_face (c
, face
, hash
)
5565 struct face_cache
*c
;
5569 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5573 if (face
->fontset
>= 0)
5575 struct face
*last
= c
->buckets
[i
];
5586 c
->buckets
[i
] = face
;
5587 face
->prev
= face
->next
= NULL
;
5593 face
->next
= c
->buckets
[i
];
5595 face
->next
->prev
= face
;
5596 c
->buckets
[i
] = face
;
5599 /* Find a free slot in C->faces_by_id and use the index of the free
5600 slot as FACE->id. */
5601 for (i
= 0; i
< c
->used
; ++i
)
5602 if (c
->faces_by_id
[i
] == NULL
)
5606 /* Maybe enlarge C->faces_by_id. */
5609 if (c
->used
== c
->size
)
5612 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5613 if (new_size
== c
->size
)
5614 abort (); /* Alternatives? ++kfs */
5615 sz
= new_size
* sizeof *c
->faces_by_id
;
5616 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5623 /* Check that FACE got a unique id. */
5628 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5629 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5635 #endif /* GLYPH_DEBUG */
5637 c
->faces_by_id
[i
] = face
;
5641 /* Remove face FACE from cache C. */
5644 uncache_face (c
, face
)
5645 struct face_cache
*c
;
5648 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5651 face
->prev
->next
= face
->next
;
5653 c
->buckets
[i
] = face
->next
;
5656 face
->next
->prev
= face
->prev
;
5658 c
->faces_by_id
[face
->id
] = NULL
;
5659 if (face
->id
== c
->used
)
5664 /* Look up a realized face with face attributes ATTR in the face cache
5665 of frame F. The face will be used to display character C. Value
5666 is the ID of the face found. If no suitable face is found, realize
5667 a new one. In that case, if C is a multibyte character, BASE_FACE
5668 is a face that has the same attributes. */
5671 lookup_face (f
, attr
, c
, base_face
)
5675 struct face
*base_face
;
5677 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5682 xassert (cache
!= NULL
);
5683 check_lface_attrs (attr
);
5685 /* Look up ATTR in the face cache. */
5686 hash
= lface_hash (attr
);
5687 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5689 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5690 if (face
->hash
== hash
5691 && (!FRAME_WINDOW_P (f
)
5692 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5693 && lface_equal_p (face
->lface
, attr
))
5696 /* If not found, realize a new face. */
5698 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5701 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5703 /* When this function is called from face_for_char (in this case, C is
5704 a multibyte character), a fontset of a face returned by
5705 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5706 C) is not sutisfied. The fontset is set for this face by
5707 face_for_char later. */
5709 if (FRAME_WINDOW_P (f
))
5710 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5712 #endif /* GLYPH_DEBUG */
5718 /* Return the face id of the realized face for named face SYMBOL on
5719 frame F suitable for displaying character C. Value is -1 if the
5720 face couldn't be determined, which might happen if the default face
5721 isn't realized and cannot be realized. */
5724 lookup_named_face (f
, symbol
, c
, signal_p
)
5730 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5731 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5732 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5734 if (default_face
== NULL
)
5736 if (!realize_basic_faces (f
))
5738 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5739 if (default_face
== NULL
)
5740 abort (); /* realize_basic_faces must have set it up */
5743 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
))
5746 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5747 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5749 return lookup_face (f
, attrs
, c
, NULL
);
5753 /* Return the ID of the realized ASCII face of Lisp face with ID
5754 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5757 ascii_face_of_lisp_face (f
, lface_id
)
5763 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5765 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5766 face_id
= lookup_named_face (f
, face_name
, 0, 1);
5775 /* Return a face for charset ASCII that is like the face with id
5776 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5777 STEPS < 0 means larger. Value is the id of the face. */
5780 smaller_face (f
, face_id
, steps
)
5784 #ifdef HAVE_WINDOW_SYSTEM
5786 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5787 int pt
, last_pt
, last_height
;
5790 struct face
*new_face
;
5792 /* If not called for an X frame, just return the original face. */
5793 if (FRAME_TERMCAP_P (f
))
5796 /* Try in increments of 1/2 pt. */
5797 delta
= steps
< 0 ? 5 : -5;
5798 steps
= abs (steps
);
5800 face
= FACE_FROM_ID (f
, face_id
);
5801 bcopy (face
->lface
, attrs
, sizeof attrs
);
5802 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5803 new_face_id
= face_id
;
5804 last_height
= FONT_HEIGHT (face
->font
);
5808 /* Give up if we cannot find a font within 10pt. */
5809 && abs (last_pt
- pt
) < 100)
5811 /* Look up a face for a slightly smaller/larger font. */
5813 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5814 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5815 new_face
= FACE_FROM_ID (f
, new_face_id
);
5817 /* If height changes, count that as one step. */
5818 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5819 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5822 last_height
= FONT_HEIGHT (new_face
->font
);
5829 #else /* not HAVE_WINDOW_SYSTEM */
5833 #endif /* not HAVE_WINDOW_SYSTEM */
5837 /* Return a face for charset ASCII that is like the face with id
5838 FACE_ID on frame F, but has height HEIGHT. */
5841 face_with_height (f
, face_id
, height
)
5846 #ifdef HAVE_WINDOW_SYSTEM
5848 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5850 if (FRAME_TERMCAP_P (f
)
5854 face
= FACE_FROM_ID (f
, face_id
);
5855 bcopy (face
->lface
, attrs
, sizeof attrs
);
5856 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5857 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5858 #endif /* HAVE_WINDOW_SYSTEM */
5864 /* Return the face id of the realized face for named face SYMBOL on
5865 frame F suitable for displaying character C, and use attributes of
5866 the face FACE_ID for attributes that aren't completely specified by
5867 SYMBOL. This is like lookup_named_face, except that the default
5868 attributes come from FACE_ID, not from the default face. FACE_ID
5869 is assumed to be already realized. */
5872 lookup_derived_face (f
, symbol
, c
, face_id
, signal_p
)
5879 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5880 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5881 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5886 get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
);
5887 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5888 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5889 return lookup_face (f
, attrs
, c
, default_face
);
5892 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5893 Sface_attributes_as_vector
, 1, 1, 0,
5894 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5899 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5901 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5908 /***********************************************************************
5909 Face capability testing
5910 ***********************************************************************/
5913 /* If the distance (as returned by color_distance) between two colors is
5914 less than this, then they are considered the same, for determining
5915 whether a color is supported or not. The range of values is 0-65535. */
5917 #define TTY_SAME_COLOR_THRESHOLD 10000
5919 #ifdef HAVE_WINDOW_SYSTEM
5921 /* Return non-zero if all the face attributes in ATTRS are supported
5922 on the window-system frame F.
5924 The definition of `supported' is somewhat heuristic, but basically means
5925 that a face containing all the attributes in ATTRS, when merged with the
5926 default face for display, can be represented in a way that's
5928 \(1) different in appearance than the default face, and
5929 \(2) `close in spirit' to what the attributes specify, if not exact. */
5932 x_supports_face_attributes_p (f
, attrs
, def_face
)
5935 struct face
*def_face
;
5937 Lisp_Object
*def_attrs
= def_face
->lface
;
5939 /* Check that other specified attributes are different that the default
5941 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5942 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5943 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5944 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5945 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5946 def_attrs
[LFACE_INVERSE_INDEX
]))
5947 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5948 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5949 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5950 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5951 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5952 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5953 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5954 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5955 def_attrs
[LFACE_STIPPLE_INDEX
]))
5956 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5957 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5958 def_attrs
[LFACE_OVERLINE_INDEX
]))
5959 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5960 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5961 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5962 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5963 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5964 def_attrs
[LFACE_BOX_INDEX
])))
5967 /* Check font-related attributes, as those are the most commonly
5968 "unsupported" on a window-system (because of missing fonts). */
5969 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5970 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5971 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5972 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5973 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5974 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
5977 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5979 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5981 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5983 face
= FACE_FROM_ID (f
, lookup_face (f
, merged_attrs
, 0, 0));
5986 error ("Cannot make face");
5988 /* If the font is the same, then not supported. */
5989 if (face
->font
== def_face
->font
)
5993 /* Everything checks out, this face is supported. */
5997 #endif /* HAVE_WINDOW_SYSTEM */
5999 /* Return non-zero if all the face attributes in ATTRS are supported
6002 The definition of `supported' is somewhat heuristic, but basically means
6003 that a face containing all the attributes in ATTRS, when merged
6004 with the default face for display, can be represented in a way that's
6006 \(1) different in appearance than the default face, and
6007 \(2) `close in spirit' to what the attributes specify, if not exact.
6009 Point (2) implies that a `:weight black' attribute will be satisfied
6010 by any terminal that can display bold, and a `:foreground "yellow"' as
6011 long as the terminal can display a yellowish color, but `:slant italic'
6012 will _not_ be satisfied by the tty display code's automatic
6013 substitution of a `dim' face for italic. */
6016 tty_supports_face_attributes_p (f
, attrs
, def_face
)
6019 struct face
*def_face
;
6022 Lisp_Object val
, fg
, bg
;
6023 XColor fg_tty_color
, fg_std_color
;
6024 XColor bg_tty_color
, bg_std_color
;
6025 unsigned test_caps
= 0;
6026 Lisp_Object
*def_attrs
= def_face
->lface
;
6029 /* First check some easy-to-check stuff; ttys support none of the
6030 following attributes, so we can just return false if any are requested
6031 (even if `nominal' values are specified, we should still return false,
6032 as that will be the same value that the default face uses). We
6033 consider :slant unsupportable on ttys, even though the face code
6034 actually `fakes' them using a dim attribute if possible. This is
6035 because the faked result is too different from what the face
6037 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
6038 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
6039 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
6040 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
6041 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
6042 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
6043 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
6044 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
6048 /* Test for terminal `capabilities' (non-color character attributes). */
6050 /* font weight (bold/dim) */
6051 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6054 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
6056 if (weight
> XLFD_WEIGHT_MEDIUM
)
6058 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
6059 return 0; /* same as default */
6060 test_caps
= TTY_CAP_BOLD
;
6062 else if (weight
< XLFD_WEIGHT_MEDIUM
)
6064 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
6065 return 0; /* same as default */
6066 test_caps
= TTY_CAP_DIM
;
6068 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
6069 return 0; /* same as default */
6073 val
= attrs
[LFACE_UNDERLINE_INDEX
];
6074 if (!UNSPECIFIEDP (val
))
6077 return 0; /* ttys can't use colored underlines */
6078 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6079 return 0; /* same as default */
6081 test_caps
|= TTY_CAP_UNDERLINE
;
6085 val
= attrs
[LFACE_INVERSE_INDEX
];
6086 if (!UNSPECIFIEDP (val
))
6088 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6089 return 0; /* same as default */
6091 test_caps
|= TTY_CAP_INVERSE
;
6095 /* Color testing. */
6097 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
6098 we use them when calling `tty_capable_p' below, even if the face
6099 specifies no colors. */
6100 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6101 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6103 /* Check if foreground color is close enough. */
6104 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
6107 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6109 if (face_attr_equal_p (fg
, def_fg
))
6110 return 0; /* same as default */
6111 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
6112 return 0; /* not a valid color */
6113 else if (color_distance (&fg_tty_color
, &fg_std_color
)
6114 > TTY_SAME_COLOR_THRESHOLD
)
6115 return 0; /* displayed color is too different */
6117 /* Make sure the color is really different than the default. */
6119 XColor def_fg_color
;
6120 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
6121 && (color_distance (&fg_tty_color
, &def_fg_color
)
6122 <= TTY_SAME_COLOR_THRESHOLD
))
6127 /* Check if background color is close enough. */
6128 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
6131 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6133 if (face_attr_equal_p (bg
, def_bg
))
6134 return 0; /* same as default */
6135 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6136 return 0; /* not a valid color */
6137 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6138 > TTY_SAME_COLOR_THRESHOLD
)
6139 return 0; /* displayed color is too different */
6141 /* Make sure the color is really different than the default. */
6143 XColor def_bg_color
;
6144 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6145 && (color_distance (&bg_tty_color
, &def_bg_color
)
6146 <= TTY_SAME_COLOR_THRESHOLD
))
6151 /* If both foreground and background are requested, see if the
6152 distance between them is OK. We just check to see if the distance
6153 between the tty's foreground and background is close enough to the
6154 distance between the standard foreground and background. */
6155 if (STRINGP (fg
) && STRINGP (bg
))
6158 = (color_distance (&fg_std_color
, &bg_std_color
)
6159 - color_distance (&fg_tty_color
, &bg_tty_color
));
6160 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6161 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6166 /* See if the capabilities we selected above are supported, with the
6168 if (test_caps
!= 0 &&
6169 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6173 /* Hmmm, everything checks out, this terminal must support this face. */
6178 DEFUN ("display-supports-face-attributes-p",
6179 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6181 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6182 The optional argument DISPLAY can be a display name, a frame, or
6183 nil (meaning the selected frame's display).
6185 The definition of `supported' is somewhat heuristic, but basically means
6186 that a face containing all the attributes in ATTRIBUTES, when merged
6187 with the default face for display, can be represented in a way that's
6189 \(1) different in appearance than the default face, and
6190 \(2) `close in spirit' to what the attributes specify, if not exact.
6192 Point (2) implies that a `:weight black' attribute will be satisfied by
6193 any display that can display bold, and a `:foreground \"yellow\"' as long
6194 as it can display a yellowish color, but `:slant italic' will _not_ be
6195 satisfied by the tty display code's automatic substitution of a `dim'
6196 face for italic. */)
6197 (attributes
, display
)
6198 Lisp_Object attributes
, display
;
6200 int supports
= 0, i
;
6203 struct face
*def_face
;
6204 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6206 if (noninteractive
|| !initialized
)
6207 /* We may not be able to access low-level face information in batch
6208 mode, or before being dumped, and this function is not going to
6209 be very useful in those cases anyway, so just give up. */
6213 frame
= selected_frame
;
6214 else if (FRAMEP (display
))
6218 /* Find any frame on DISPLAY. */
6219 Lisp_Object fl_tail
;
6222 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6224 frame
= XCAR (fl_tail
);
6225 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6226 XFRAME (frame
)->param_alist
)),
6232 CHECK_LIVE_FRAME (frame
);
6235 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6236 attrs
[i
] = Qunspecified
;
6237 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6239 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6240 if (def_face
== NULL
)
6242 if (! realize_basic_faces (f
))
6243 error ("Cannot realize default face");
6244 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6245 if (def_face
== NULL
)
6246 abort (); /* realize_basic_faces must have set it up */
6249 /* Dispatch to the appropriate handler. */
6250 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6251 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6252 #ifdef HAVE_WINDOW_SYSTEM
6254 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6257 return supports
? Qt
: Qnil
;
6261 /***********************************************************************
6263 ***********************************************************************/
6265 DEFUN ("internal-set-font-selection-order",
6266 Finternal_set_font_selection_order
,
6267 Sinternal_set_font_selection_order
, 1, 1, 0,
6268 doc
: /* Set font selection order for face font selection to ORDER.
6269 ORDER must be a list of length 4 containing the symbols `:width',
6270 `:height', `:weight', and `:slant'. Face attributes appearing
6271 first in ORDER are matched first, e.g. if `:height' appears before
6272 `:weight' in ORDER, font selection first tries to find a font with
6273 a suitable height, and then tries to match the font weight.
6280 int indices
[DIM (font_sort_order
)];
6283 bzero (indices
, sizeof indices
);
6287 CONSP (list
) && i
< DIM (indices
);
6288 list
= XCDR (list
), ++i
)
6290 Lisp_Object attr
= XCAR (list
);
6293 if (EQ (attr
, QCwidth
))
6295 else if (EQ (attr
, QCheight
))
6296 xlfd
= XLFD_POINT_SIZE
;
6297 else if (EQ (attr
, QCweight
))
6299 else if (EQ (attr
, QCslant
))
6304 if (indices
[i
] != 0)
6309 if (!NILP (list
) || i
!= DIM (indices
))
6310 signal_error ("Invalid font sort order", order
);
6311 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6312 if (indices
[i
] == 0)
6313 signal_error ("Invalid font sort order", order
);
6315 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6317 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6318 free_all_realized_faces (Qnil
);
6325 DEFUN ("internal-set-alternative-font-family-alist",
6326 Finternal_set_alternative_font_family_alist
,
6327 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6328 doc
: /* Define alternative font families to try in face font selection.
6329 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6330 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6331 be found. Value is ALIST. */)
6336 Vface_alternative_font_family_alist
= alist
;
6337 free_all_realized_faces (Qnil
);
6342 DEFUN ("internal-set-alternative-font-registry-alist",
6343 Finternal_set_alternative_font_registry_alist
,
6344 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6345 doc
: /* Define alternative font registries to try in face font selection.
6346 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6347 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6348 be found. Value is ALIST. */)
6353 Vface_alternative_font_registry_alist
= alist
;
6354 free_all_realized_faces (Qnil
);
6359 #ifdef HAVE_WINDOW_SYSTEM
6361 /* Value is non-zero if FONT is the name of a scalable font. The
6362 X11R6 XLFD spec says that point size, pixel size, and average width
6363 are zero for scalable fonts. Intlfonts contain at least one
6364 scalable font ("*-muleindian-1") for which this isn't true, so we
6365 just test average width. */
6368 font_scalable_p (font
)
6369 struct font_name
*font
;
6371 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6372 return (*s
== '0' && *(s
+ 1) == '\0')
6374 /* Windows implementation of XLFD is slightly broken for backward
6375 compatibility with previous broken versions, so test for
6376 wildcards as well as 0. */
6383 /* Ignore the difference of font point size less than this value. */
6385 #define FONT_POINT_SIZE_QUANTUM 5
6387 /* Value is non-zero if FONT1 is a better match for font attributes
6388 VALUES than FONT2. VALUES is an array of face attribute values in
6389 font sort order. COMPARE_PT_P zero means don't compare point
6390 sizes. AVGWIDTH, if not zero, is a specified font average width
6394 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6396 struct font_name
*font1
, *font2
;
6397 int compare_pt_p
, avgwidth
;
6401 /* Any font is better than no font. */
6407 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6409 int xlfd_idx
= font_sort_order
[i
];
6411 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6415 if (xlfd_idx
== XLFD_POINT_SIZE
)
6417 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6418 / font1
->rescale_ratio
));
6419 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6420 / font2
->rescale_ratio
));
6421 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6426 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6427 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6430 if (delta1
> delta2
)
6432 else if (delta1
< delta2
)
6436 /* The difference may be equal because, e.g., the face
6437 specifies `italic' but we have only `regular' and
6438 `oblique'. Prefer `oblique' in this case. */
6439 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6440 && font1
->numeric
[xlfd_idx
] > values
[i
]
6441 && font2
->numeric
[xlfd_idx
] < values
[i
])
6449 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6450 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6451 if (delta1
> delta2
)
6453 else if (delta1
< delta2
)
6459 /* We prefer a real scalable font; i.e. not what autoscaled. */
6460 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6461 && font1
->numeric
[XLFD_RESY
] > 0);
6462 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6463 && font2
->numeric
[XLFD_RESY
] > 0);
6465 if (auto_scaled_1
!= auto_scaled_2
)
6466 return auto_scaled_2
;
6469 return font1
->registry_priority
< font2
->registry_priority
;
6473 /* Value is non-zero if FONT is an exact match for face attributes in
6474 SPECIFIED. SPECIFIED is an array of face attribute values in font
6475 sort order. AVGWIDTH, if non-zero, is an average width to compare
6479 exact_face_match_p (specified
, font
, avgwidth
)
6481 struct font_name
*font
;
6486 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6487 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6490 return (i
== DIM (font_sort_order
)
6492 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6496 /* Value is the name of a scaled font, generated from scalable font
6497 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6498 Value is allocated from heap. */
6501 build_scalable_font_name (f
, font
, specified_pt
)
6503 struct font_name
*font
;
6506 char pixel_size
[20];
6508 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6511 /* If scalable font is for a specific resolution, compute
6512 the point size we must specify from the resolution of
6513 the display and the specified resolution of the font. */
6514 if (font
->numeric
[XLFD_RESY
] != 0)
6516 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6517 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6522 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6524 /* We may need a font of the different size. */
6525 pixel_value
*= font
->rescale_ratio
;
6527 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6528 font of the specified PIXEL_SIZE. */
6530 { /* Set point size of the font. */
6531 char point_size
[20];
6532 sprintf (point_size
, "%d", (int) pt
);
6533 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6534 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6538 /* Set pixel size. */
6539 sprintf (pixel_size
, "%d", pixel_value
);
6540 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6541 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6543 /* If font doesn't specify its resolution, use the
6544 resolution of the display. */
6545 if (font
->numeric
[XLFD_RESY
] == 0)
6548 sprintf (buffer
, "%d", (int) resy
);
6549 font
->fields
[XLFD_RESY
] = buffer
;
6550 font
->numeric
[XLFD_RESY
] = resy
;
6553 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6556 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6557 sprintf (buffer
, "%d", resx
);
6558 font
->fields
[XLFD_RESX
] = buffer
;
6559 font
->numeric
[XLFD_RESX
] = resx
;
6562 return build_font_name (font
);
6566 /* Value is non-zero if we are allowed to use scalable font FONT. We
6567 can't run a Lisp function here since this function may be called
6568 with input blocked. */
6571 may_use_scalable_font_p (font
)
6574 if (EQ (Vscalable_fonts_allowed
, Qt
))
6576 else if (CONSP (Vscalable_fonts_allowed
))
6578 Lisp_Object tail
, regexp
;
6580 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6582 regexp
= XCAR (tail
);
6583 if (STRINGP (regexp
)
6584 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6594 /* Return the name of the best matching font for face attributes ATTRS
6595 in the array of font_name structures FONTS which contains NFONTS
6596 elements. WIDTH_RATIO is a factor with which to multiply average
6597 widths if ATTRS specifies such a width.
6599 Value is a font name which is allocated from the heap. FONTS is
6600 freed by this function.
6602 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6603 indicate whether the resulting font should be drawn using overstrike
6604 to simulate bold-face. */
6607 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6610 struct font_name
*fonts
;
6613 int *needs_overstrike
;
6616 struct font_name
*best
;
6619 int exact_p
, avgwidth
;
6624 /* Make specified font attributes available in `specified',
6625 indexed by sort order. */
6626 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6628 int xlfd_idx
= font_sort_order
[i
];
6630 if (xlfd_idx
== XLFD_SWIDTH
)
6631 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6632 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6633 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6634 else if (xlfd_idx
== XLFD_WEIGHT
)
6635 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6636 else if (xlfd_idx
== XLFD_SLANT
)
6637 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6642 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6644 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6648 if (needs_overstrike
)
6649 *needs_overstrike
= 0;
6653 /* Find the best match among the non-scalable fonts. */
6654 for (i
= 0; i
< nfonts
; ++i
)
6655 if (!font_scalable_p (fonts
+ i
)
6656 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6660 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6665 /* Unless we found an exact match among non-scalable fonts, see if
6666 we can find a better match among scalable fonts. */
6669 /* A scalable font is better if
6671 1. its weight, slant, swidth attributes are better, or.
6673 2. the best non-scalable font doesn't have the required
6674 point size, and the scalable fonts weight, slant, swidth
6677 int non_scalable_has_exact_height_p
;
6679 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6680 non_scalable_has_exact_height_p
= 1;
6682 non_scalable_has_exact_height_p
= 0;
6684 for (i
= 0; i
< nfonts
; ++i
)
6685 if (font_scalable_p (fonts
+ i
))
6687 if (better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6688 || (!non_scalable_has_exact_height_p
6689 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6691 non_scalable_has_exact_height_p
= 1;
6697 /* We should have found SOME font. */
6701 if (! exact_p
&& needs_overstrike
)
6703 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6704 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6706 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6708 /* We want a bold font, but didn't get one; try to use
6709 overstriking instead to simulate bold-face. However,
6710 don't overstrike an already-bold font unless the
6711 desired weight grossly exceeds the available weight. */
6712 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6713 *needs_overstrike
= (want_weight
- got_weight
) > 2;
6715 *needs_overstrike
= 1;
6719 if (font_scalable_p (best
))
6720 font_name
= build_scalable_font_name (f
, best
, pt
);
6722 font_name
= build_font_name (best
);
6724 /* Free font_name structures. */
6725 free_font_names (fonts
, nfonts
);
6731 /* Get a list of matching fonts on frame F, considering FAMILY
6732 and alternative font families from Vface_alternative_font_registry_alist.
6734 FAMILY is the font family whose alternatives are considered.
6736 REGISTRY, if a string, specifies a font registry and encoding to
6737 match. A value of nil means include fonts of any registry and
6740 Return in *FONTS a pointer to a vector of font_name structures for
6741 the fonts matched. Value is the number of fonts found. */
6744 try_alternative_families (f
, family
, registry
, fonts
)
6746 Lisp_Object family
, registry
;
6747 struct font_name
**fonts
;
6752 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6755 /* Try alternative font families. */
6756 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6759 for (alter
= XCDR (alter
);
6760 CONSP (alter
) && nfonts
== 0;
6761 alter
= XCDR (alter
))
6763 if (STRINGP (XCAR (alter
)))
6764 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6768 /* Try all scalable fonts before giving up. */
6769 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6771 int count
= SPECPDL_INDEX ();
6772 specbind (Qscalable_fonts_allowed
, Qt
);
6773 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6774 unbind_to (count
, Qnil
);
6781 /* Get a list of matching fonts on frame F.
6783 FAMILY, if a string, specifies a font family derived from the fontset.
6784 It is only used if the face does not specify any family in ATTRS or
6785 if we cannot find any font of the face's family.
6787 REGISTRY, if a string, specifies a font registry and encoding to
6788 match. A value of nil means include fonts of any registry and
6791 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6792 Otherwise, prefer FAMILY.
6794 Return in *FONTS a pointer to a vector of font_name structures for
6795 the fonts matched. Value is the number of fonts found. */
6798 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6801 Lisp_Object family
, registry
;
6802 struct font_name
**fonts
;
6803 int prefer_face_family
;
6806 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6807 Lisp_Object try_family
;
6809 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6811 if (STRINGP (try_family
))
6812 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6815 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
))
6817 if (xstricmp (SDATA (registry
), "mac-roman") == 0)
6818 /* When realizing the default face and a font spec does not
6819 matched exactly, Emacs looks for ones with the same registry
6820 as the default font. On the Mac, this is mac-roman, which
6821 does not work if the family is -etl-fixed, e.g. The
6822 following widens the choices and fixes that problem. */
6823 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6824 else if (SBYTES (try_family
) > 0
6825 && SREF (try_family
, SBYTES (try_family
) - 1) != '*')
6826 /* Some Central European/Cyrillic font family names have the
6827 Roman counterpart name as their prefix. */
6828 nfonts
= try_alternative_families (f
, concat2 (try_family
,
6829 build_string ("*")),
6834 if (EQ (try_family
, family
))
6835 family
= face_family
;
6837 if (nfonts
== 0 && STRINGP (family
))
6838 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6840 /* Try font family of the default face or "fixed". */
6843 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6845 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6847 family
= build_string ("fixed");
6848 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6851 /* Try any family with the given registry. */
6853 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6859 /* Return the fontset id of the base fontset name or alias name given
6860 by the fontset attribute of ATTRS. Value is -1 if the fontset
6861 attribute of ATTRS doesn't name a fontset. */
6864 face_fontset (attrs
)
6869 name
= attrs
[LFACE_FONT_INDEX
];
6870 if (!STRINGP (name
))
6872 return fs_query_fontset (name
, 0);
6876 /* Choose a name of font to use on frame F to display character C with
6877 Lisp face attributes specified by ATTRS. The font name is
6878 determined by the font-related attributes in ATTRS and the name
6879 pattern for C in FONTSET. Value is the font name which is
6880 allocated from the heap and must be freed by the caller, or NULL if
6881 we can get no information about the font name of C. It is assured
6882 that we always get some information for a single byte
6885 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6886 indicate whether the resulting font should be drawn using overstrike
6887 to simulate bold-face. */
6890 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6894 int *needs_overstrike
;
6896 Lisp_Object pattern
;
6897 char *font_name
= NULL
;
6898 struct font_name
*fonts
;
6899 int nfonts
, width_ratio
;
6901 if (needs_overstrike
)
6902 *needs_overstrike
= 0;
6904 /* Get (foundry and) family name and registry (and encoding) name of
6906 pattern
= fontset_font_pattern (f
, fontset
, c
);
6909 xassert (!SINGLE_BYTE_CHAR_P (c
));
6913 /* If what we got is a name pattern, return it. */
6914 if (STRINGP (pattern
))
6915 return xstrdup (SDATA (pattern
));
6917 /* Get a list of fonts matching that pattern and choose the
6918 best match for the specified face attributes from it. */
6919 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6920 (SINGLE_BYTE_CHAR_P (c
)
6921 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6922 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6924 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6925 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6930 #endif /* HAVE_WINDOW_SYSTEM */
6934 /***********************************************************************
6936 ***********************************************************************/
6938 /* Realize basic faces on frame F. Value is zero if frame parameters
6939 of F don't contain enough information needed to realize the default
6943 realize_basic_faces (f
)
6947 int count
= SPECPDL_INDEX ();
6949 /* Block input here so that we won't be surprised by an X expose
6950 event, for instance, without having the faces set up. */
6952 specbind (Qscalable_fonts_allowed
, Qt
);
6954 if (realize_default_face (f
))
6956 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6957 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6958 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6959 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6960 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6961 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6962 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6963 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6964 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6965 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6966 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
6968 /* Reflect changes in the `menu' face in menu bars. */
6969 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6971 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6972 #ifdef USE_X_TOOLKIT
6973 if (FRAME_WINDOW_P (f
))
6974 x_update_menu_appearance (f
);
6981 unbind_to (count
, Qnil
);
6987 /* Realize the default face on frame F. If the face is not fully
6988 specified, make it fully-specified. Attributes of the default face
6989 that are not explicitly specified are taken from frame parameters. */
6992 realize_default_face (f
)
6995 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6997 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6998 Lisp_Object frame_font
;
7001 /* If the `default' face is not yet known, create it. */
7002 lface
= lface_from_face_name (f
, Qdefault
, 0);
7006 XSETFRAME (frame
, f
);
7007 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
7011 #ifdef HAVE_WINDOW_SYSTEM
7012 if (FRAME_WINDOW_P (f
))
7014 /* Set frame_font to the value of the `font' frame parameter. */
7015 frame_font
= Fassq (Qfont
, f
->param_alist
);
7016 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
7017 frame_font
= XCDR (frame_font
);
7018 set_lface_from_font_name (f
, lface
, frame_font
,
7019 f
->default_face_done_p
, 1);
7020 f
->default_face_done_p
= 1;
7022 #endif /* HAVE_WINDOW_SYSTEM */
7024 if (!FRAME_WINDOW_P (f
))
7026 LFACE_FAMILY (lface
) = build_string ("default");
7027 LFACE_SWIDTH (lface
) = Qnormal
;
7028 LFACE_HEIGHT (lface
) = make_number (1);
7029 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
7030 LFACE_WEIGHT (lface
) = Qnormal
;
7031 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
7032 LFACE_SLANT (lface
) = Qnormal
;
7033 LFACE_AVGWIDTH (lface
) = Qunspecified
;
7036 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
7037 LFACE_UNDERLINE (lface
) = Qnil
;
7039 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
7040 LFACE_OVERLINE (lface
) = Qnil
;
7042 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
7043 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
7045 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
7046 LFACE_BOX (lface
) = Qnil
;
7048 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
7049 LFACE_INVERSE (lface
) = Qnil
;
7051 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
7053 /* This function is called so early that colors are not yet
7054 set in the frame parameter list. */
7055 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
7057 if (CONSP (color
) && STRINGP (XCDR (color
)))
7058 LFACE_FOREGROUND (lface
) = XCDR (color
);
7059 else if (FRAME_WINDOW_P (f
))
7061 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7062 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
7067 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
7069 /* This function is called so early that colors are not yet
7070 set in the frame parameter list. */
7071 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
7072 if (CONSP (color
) && STRINGP (XCDR (color
)))
7073 LFACE_BACKGROUND (lface
) = XCDR (color
);
7074 else if (FRAME_WINDOW_P (f
))
7076 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7077 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
7082 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
7083 LFACE_STIPPLE (lface
) = Qnil
;
7085 /* Realize the face; it must be fully-specified now. */
7086 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
7087 check_lface (lface
);
7088 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
7089 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
7091 #ifdef HAVE_WINDOW_SYSTEM
7092 #ifdef HAVE_X_WINDOWS
7093 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
7095 /* This can happen when making a frame on a display that does
7096 not support the default font. */
7100 /* Otherwise, the font specified for the frame was not
7101 acceptable as a font for the default face (perhaps because
7102 auto-scaled fonts are rejected), so we must adjust the frame
7104 x_set_font (f
, build_string (face
->font_name
), Qnil
);
7106 #endif /* HAVE_X_WINDOWS */
7107 #endif /* HAVE_WINDOW_SYSTEM */
7112 /* Realize basic faces other than the default face in face cache C.
7113 SYMBOL is the face name, ID is the face id the realized face must
7114 have. The default face must have been realized already. */
7117 realize_named_face (f
, symbol
, id
)
7122 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
7123 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
7124 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7125 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
7126 struct face
*new_face
;
7128 /* The default face must exist and be fully specified. */
7129 get_lface_attributes (f
, Qdefault
, attrs
, 1);
7130 check_lface_attrs (attrs
);
7131 xassert (lface_fully_specified_p (attrs
));
7133 /* If SYMBOL isn't know as a face, create it. */
7137 XSETFRAME (frame
, f
);
7138 lface
= Finternal_make_lisp_face (symbol
, frame
);
7141 /* Merge SYMBOL's face with the default face. */
7142 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
7143 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
7145 /* Realize the face. */
7146 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
7150 /* Realize the fully-specified face with attributes ATTRS in face
7151 cache CACHE for character C. If C is a multibyte character,
7152 BASE_FACE is a face that has the same attributes. Otherwise,
7153 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
7154 ID of face to remove before caching the new face. Value is a
7155 pointer to the newly created realized face. */
7157 static struct face
*
7158 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
7159 struct face_cache
*cache
;
7162 struct face
*base_face
;
7167 /* LFACE must be fully specified. */
7168 xassert (cache
!= NULL
);
7169 check_lface_attrs (attrs
);
7171 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7173 /* Remove the former face. */
7174 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7175 uncache_face (cache
, former_face
);
7176 free_realized_face (cache
->f
, former_face
);
7179 if (FRAME_WINDOW_P (cache
->f
))
7180 face
= realize_x_face (cache
, attrs
, c
, base_face
);
7181 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7182 face
= realize_tty_face (cache
, attrs
, c
);
7183 else if (FRAME_INITIAL_P (cache
->f
))
7185 /* Create a dummy face. */
7186 face
= make_realized_face (attrs
);
7191 /* Insert the new face. */
7192 cache_face (cache
, face
, lface_hash (attrs
));
7193 #ifdef HAVE_WINDOW_SYSTEM
7194 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
7195 load_face_font (cache
->f
, face
, c
);
7196 #endif /* HAVE_WINDOW_SYSTEM */
7201 /* Realize the fully-specified face with attributes ATTRS in face
7202 cache CACHE for character C. Do it for X frame CACHE->f. If C is
7203 a multibyte character, BASE_FACE is a face that has the same
7204 attributes. Otherwise, BASE_FACE is ignored. If the new face
7205 doesn't share font with the default face, a fontname is allocated
7206 from the heap and set in `font_name' of the new face, but it is not
7207 yet loaded here. Value is a pointer to the newly created realized
7210 static struct face
*
7211 realize_x_face (cache
, attrs
, c
, base_face
)
7212 struct face_cache
*cache
;
7215 struct face
*base_face
;
7217 struct face
*face
= NULL
;
7218 #ifdef HAVE_WINDOW_SYSTEM
7219 struct face
*default_face
;
7221 Lisp_Object stipple
, overline
, strike_through
, box
;
7223 xassert (FRAME_WINDOW_P (cache
->f
));
7224 xassert (SINGLE_BYTE_CHAR_P (c
)
7227 /* Allocate a new realized face. */
7228 face
= make_realized_face (attrs
);
7232 /* If C is a multibyte character, we share all face attirbutes with
7233 BASE_FACE including the realized fontset. But, we must load a
7235 if (!SINGLE_BYTE_CHAR_P (c
))
7237 bcopy (base_face
, face
, sizeof *face
);
7240 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7241 face
->colors_copied_bitwise_p
= 1;
7243 /* to force realize_face to load font */
7248 /* Now we are realizing a face for ASCII (and unibyte) characters. */
7250 /* Determine the font to use. Most of the time, the font will be
7251 the same as the font of the default face, so try that first. */
7252 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7254 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
7255 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7257 face
->font
= default_face
->font
;
7258 face
->fontset
= default_face
->fontset
;
7259 face
->font_info_id
= default_face
->font_info_id
;
7260 face
->font_name
= default_face
->font_name
;
7261 face
->ascii_face
= face
;
7263 /* But, as we can't share the fontset, make a new realized
7264 fontset that has the same base fontset as of the default
7267 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
7271 /* If the face attribute ATTRS specifies a fontset, use it as
7272 the base of a new realized fontset. Otherwise, use the same
7273 base fontset as of the default face. The base determines
7274 registry and encoding of a font. It may also determine
7275 foundry and family. The other fields of font name pattern
7276 are constructed from ATTRS. */
7277 int fontset
= face_fontset (attrs
);
7279 if ((fontset
== -1) && default_face
)
7280 fontset
= default_face
->fontset
;
7281 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
7282 face
->font
= NULL
; /* to force realize_face to load font */
7285 /* Load colors, and set remaining attributes. */
7287 load_face_colors (f
, face
, attrs
);
7290 box
= attrs
[LFACE_BOX_INDEX
];
7293 /* A simple box of line width 1 drawn in color given by
7295 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7297 face
->box
= FACE_SIMPLE_BOX
;
7298 face
->box_line_width
= 1;
7300 else if (INTEGERP (box
))
7302 /* Simple box of specified line width in foreground color of the
7304 xassert (XINT (box
) != 0);
7305 face
->box
= FACE_SIMPLE_BOX
;
7306 face
->box_line_width
= XINT (box
);
7307 face
->box_color
= face
->foreground
;
7308 face
->box_color_defaulted_p
= 1;
7310 else if (CONSP (box
))
7312 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7313 being one of `raised' or `sunken'. */
7314 face
->box
= FACE_SIMPLE_BOX
;
7315 face
->box_color
= face
->foreground
;
7316 face
->box_color_defaulted_p
= 1;
7317 face
->box_line_width
= 1;
7321 Lisp_Object keyword
, value
;
7323 keyword
= XCAR (box
);
7331 if (EQ (keyword
, QCline_width
))
7333 if (INTEGERP (value
) && XINT (value
) != 0)
7334 face
->box_line_width
= XINT (value
);
7336 else if (EQ (keyword
, QCcolor
))
7338 if (STRINGP (value
))
7340 face
->box_color
= load_color (f
, face
, value
,
7342 face
->use_box_color_for_shadows_p
= 1;
7345 else if (EQ (keyword
, QCstyle
))
7347 if (EQ (value
, Qreleased_button
))
7348 face
->box
= FACE_RAISED_BOX
;
7349 else if (EQ (value
, Qpressed_button
))
7350 face
->box
= FACE_SUNKEN_BOX
;
7355 /* Text underline, overline, strike-through. */
7357 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7359 /* Use default color (same as foreground color). */
7360 face
->underline_p
= 1;
7361 face
->underline_defaulted_p
= 1;
7362 face
->underline_color
= 0;
7364 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7366 /* Use specified color. */
7367 face
->underline_p
= 1;
7368 face
->underline_defaulted_p
= 0;
7369 face
->underline_color
7370 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7371 LFACE_UNDERLINE_INDEX
);
7373 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7375 face
->underline_p
= 0;
7376 face
->underline_defaulted_p
= 0;
7377 face
->underline_color
= 0;
7380 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7381 if (STRINGP (overline
))
7383 face
->overline_color
7384 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7385 LFACE_OVERLINE_INDEX
);
7386 face
->overline_p
= 1;
7388 else if (EQ (overline
, Qt
))
7390 face
->overline_color
= face
->foreground
;
7391 face
->overline_color_defaulted_p
= 1;
7392 face
->overline_p
= 1;
7395 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7396 if (STRINGP (strike_through
))
7398 face
->strike_through_color
7399 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7400 LFACE_STRIKE_THROUGH_INDEX
);
7401 face
->strike_through_p
= 1;
7403 else if (EQ (strike_through
, Qt
))
7405 face
->strike_through_color
= face
->foreground
;
7406 face
->strike_through_color_defaulted_p
= 1;
7407 face
->strike_through_p
= 1;
7410 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7411 if (!NILP (stipple
))
7412 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7414 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7415 #endif /* HAVE_WINDOW_SYSTEM */
7420 /* Map a specified color of face FACE on frame F to a tty color index.
7421 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7422 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7423 default foreground/background colors. */
7426 map_tty_color (f
, face
, idx
, defaulted
)
7429 enum lface_attribute_index idx
;
7432 Lisp_Object frame
, color
, def
;
7433 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7434 unsigned long default_pixel
, default_other_pixel
, pixel
;
7436 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7440 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7441 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7445 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7446 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7449 XSETFRAME (frame
, f
);
7450 color
= face
->lface
[idx
];
7454 && CONSP (Vtty_defined_color_alist
)
7455 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7458 /* Associations in tty-defined-color-alist are of the form
7459 (NAME INDEX R G B). We need the INDEX part. */
7460 pixel
= XINT (XCAR (XCDR (def
)));
7463 if (pixel
== default_pixel
&& STRINGP (color
))
7465 pixel
= load_color (f
, face
, color
, idx
);
7467 #if defined (MSDOS) || defined (WINDOWSNT)
7468 /* If the foreground of the default face is the default color,
7469 use the foreground color defined by the frame. */
7471 if (FRAME_MSDOS_P (f
))
7474 if (pixel
== default_pixel
7475 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7478 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7480 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7481 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7484 else if (pixel
== default_other_pixel
)
7487 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7489 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7490 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7496 #endif /* MSDOS or WINDOWSNT */
7500 face
->foreground
= pixel
;
7502 face
->background
= pixel
;
7506 /* Realize the fully-specified face with attributes ATTRS in face
7507 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7508 pointer to the newly created realized face. */
7510 static struct face
*
7511 realize_tty_face (cache
, attrs
, c
)
7512 struct face_cache
*cache
;
7518 int face_colors_defaulted
= 0;
7519 struct frame
*f
= cache
->f
;
7521 /* Frame must be a termcap frame. */
7522 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7524 /* Allocate a new realized face. */
7525 face
= make_realized_face (attrs
);
7526 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7528 /* Map face attributes to TTY appearances. We map slant to
7529 dimmed text because we want italic text to appear differently
7530 and because dimmed text is probably used infrequently. */
7531 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7532 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7534 if (weight
> XLFD_WEIGHT_MEDIUM
)
7535 face
->tty_bold_p
= 1;
7536 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7537 face
->tty_dim_p
= 1;
7538 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7539 face
->tty_underline_p
= 1;
7540 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7541 face
->tty_reverse_p
= 1;
7543 /* Map color names to color indices. */
7544 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7545 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7547 /* Swap colors if face is inverse-video. If the colors are taken
7548 from the frame colors, they are already inverted, since the
7549 frame-creation function calls x-handle-reverse-video. */
7550 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7552 unsigned long tem
= face
->foreground
;
7553 face
->foreground
= face
->background
;
7554 face
->background
= tem
;
7557 if (tty_suppress_bold_inverse_default_colors_p
7559 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7560 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7561 face
->tty_bold_p
= 0;
7567 DEFUN ("tty-suppress-bold-inverse-default-colors",
7568 Ftty_suppress_bold_inverse_default_colors
,
7569 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7570 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7571 SUPPRESS non-nil means suppress it.
7572 This affects bold faces on TTYs whose foreground is the default background
7573 color of the display and whose background is the default foreground color.
7574 For such faces, the bold face attribute is ignored if this variable
7577 Lisp_Object suppress
;
7579 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7580 ++face_change_count
;
7586 /***********************************************************************
7588 ***********************************************************************/
7590 /* Return the ID of the face to use to display character CH with face
7591 property PROP on frame F in current_buffer. */
7594 compute_char_face (f
, ch
, prop
)
7601 if (NILP (current_buffer
->enable_multibyte_characters
))
7606 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7607 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7611 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7612 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7613 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7614 merge_face_ref (f
, prop
, attrs
, 1, 0);
7615 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7621 /* Return the face ID associated with buffer position POS for
7622 displaying ASCII characters. Return in *ENDPTR the position at
7623 which a different face is needed, as far as text properties and
7624 overlays are concerned. W is a window displaying current_buffer.
7626 REGION_BEG, REGION_END delimit the region, so it can be
7629 LIMIT is a position not to scan beyond. That is to limit the time
7630 this function can take.
7632 If MOUSE is non-zero, use the character's mouse-face, not its face.
7634 The face returned is suitable for displaying ASCII characters. */
7637 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7638 endptr
, limit
, mouse
)
7641 int region_beg
, region_end
;
7646 struct frame
*f
= XFRAME (w
->frame
);
7647 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7648 Lisp_Object prop
, position
;
7650 Lisp_Object
*overlay_vec
;
7653 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7654 Lisp_Object limit1
, end
;
7655 struct face
*default_face
;
7657 /* W must display the current buffer. We could write this function
7658 to use the frame and buffer of W, but right now it doesn't. */
7659 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7661 XSETFRAME (frame
, f
);
7662 XSETFASTINT (position
, pos
);
7665 if (pos
< region_beg
&& region_beg
< endpos
)
7666 endpos
= region_beg
;
7668 /* Get the `face' or `mouse_face' text property at POS, and
7669 determine the next position at which the property changes. */
7670 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7671 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7672 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7674 endpos
= XINT (end
);
7676 /* Look at properties from overlays. */
7680 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7681 if (next_overlay
< endpos
)
7682 endpos
= next_overlay
;
7687 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7689 /* Optimize common cases where we can use the default face. */
7692 && !(pos
>= region_beg
&& pos
< region_end
))
7693 return DEFAULT_FACE_ID
;
7695 /* Begin with attributes from the default face. */
7696 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7698 /* Merge in attributes specified via text properties. */
7700 merge_face_ref (f
, prop
, attrs
, 1, 0);
7702 /* Now merge the overlay data. */
7703 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7704 for (i
= 0; i
< noverlays
; i
++)
7709 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7711 merge_face_ref (f
, prop
, attrs
, 1, 0);
7713 oend
= OVERLAY_END (overlay_vec
[i
]);
7714 oendpos
= OVERLAY_POSITION (oend
);
7715 if (oendpos
< endpos
)
7719 /* If in the region, merge in the region face. */
7720 if (pos
>= region_beg
&& pos
< region_end
)
7722 merge_named_face (f
, Qregion
, attrs
, 0);
7724 if (region_end
< endpos
)
7725 endpos
= region_end
;
7730 /* Look up a realized face with the given face attributes,
7731 or realize a new one for ASCII characters. */
7732 return lookup_face (f
, attrs
, 0, NULL
);
7736 /* Compute the face at character position POS in Lisp string STRING on
7737 window W, for ASCII characters.
7739 If STRING is an overlay string, it comes from position BUFPOS in
7740 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7741 not an overlay string. W must display the current buffer.
7742 REGION_BEG and REGION_END give the start and end positions of the
7743 region; both are -1 if no region is visible.
7745 BASE_FACE_ID is the id of a face to merge with. For strings coming
7746 from overlays or the `display' property it is the face at BUFPOS.
7748 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7750 Set *ENDPTR to the next position where to check for faces in
7751 STRING; -1 if the face is constant from POS to the end of the
7754 Value is the id of the face to use. The face returned is suitable
7755 for displaying ASCII characters. */
7758 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7759 region_end
, endptr
, base_face_id
, mouse_p
)
7763 int region_beg
, region_end
;
7765 enum face_id base_face_id
;
7768 Lisp_Object prop
, position
, end
, limit
;
7769 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7770 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7771 struct face
*base_face
;
7772 int multibyte_p
= STRING_MULTIBYTE (string
);
7773 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7775 /* Get the value of the face property at the current position within
7776 STRING. Value is nil if there is no face property. */
7777 XSETFASTINT (position
, pos
);
7778 prop
= Fget_text_property (position
, prop_name
, string
);
7780 /* Get the next position at which to check for faces. Value of end
7781 is nil if face is constant all the way to the end of the string.
7782 Otherwise it is a string position where to check faces next.
7783 Limit is the maximum position up to which to check for property
7784 changes in Fnext_single_property_change. Strings are usually
7785 short, so set the limit to the end of the string. */
7786 XSETFASTINT (limit
, SCHARS (string
));
7787 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7789 *endptr
= XFASTINT (end
);
7793 base_face
= FACE_FROM_ID (f
, base_face_id
);
7794 xassert (base_face
);
7796 /* Optimize the default case that there is no face property and we
7797 are not in the region. */
7799 && (base_face_id
!= DEFAULT_FACE_ID
7800 /* BUFPOS <= 0 means STRING is not an overlay string, so
7801 that the region doesn't have to be taken into account. */
7803 || bufpos
< region_beg
7804 || bufpos
>= region_end
)
7806 /* We can't realize faces for different charsets differently
7807 if we don't have fonts, so we can stop here if not working
7808 on a window-system frame. */
7809 || !FRAME_WINDOW_P (f
)
7810 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7811 return base_face
->id
;
7813 /* Begin with attributes from the base face. */
7814 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7816 /* Merge in attributes specified via text properties. */
7818 merge_face_ref (f
, prop
, attrs
, 1, 0);
7820 /* If in the region, merge in the region face. */
7822 && bufpos
>= region_beg
7823 && bufpos
< region_end
)
7824 merge_named_face (f
, Qregion
, attrs
, 0);
7826 /* Look up a realized face with the given face attributes,
7827 or realize a new one for ASCII characters. */
7828 return lookup_face (f
, attrs
, 0, NULL
);
7832 /* Merge a face into a realized face.
7834 F is frame where faces are (to be) realized.
7836 FACE_NAME is named face to merge.
7838 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
7840 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
7842 BASE_FACE_ID is realized face to merge into.
7848 merge_faces (f
, face_name
, face_id
, base_face_id
)
7850 Lisp_Object face_name
;
7851 int face_id
, base_face_id
;
7853 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7854 struct face
*base_face
;
7856 base_face
= FACE_FROM_ID (f
, base_face_id
);
7858 return base_face_id
;
7860 if (EQ (face_name
, Qt
))
7862 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
7863 return base_face_id
;
7864 face_name
= lface_id_to_name
[face_id
];
7865 face_id
= lookup_derived_face (f
, face_name
, 0, base_face_id
, 1);
7868 return base_face_id
;
7871 /* Begin with attributes from the base face. */
7872 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7874 if (!NILP (face_name
))
7876 if (!merge_named_face (f
, face_name
, attrs
, 0))
7877 return base_face_id
;
7883 return base_face_id
;
7884 face
= FACE_FROM_ID (f
, face_id
);
7886 return base_face_id
;
7887 merge_face_vectors (f
, face
->lface
, attrs
, 0);
7890 /* Look up a realized face with the given face attributes,
7891 or realize a new one for ASCII characters. */
7892 return lookup_face (f
, attrs
, 0, NULL
);
7896 /***********************************************************************
7898 ***********************************************************************/
7902 /* Print the contents of the realized face FACE to stderr. */
7905 dump_realized_face (face
)
7908 fprintf (stderr
, "ID: %d\n", face
->id
);
7909 #ifdef HAVE_X_WINDOWS
7910 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
7912 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7914 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7915 fprintf (stderr
, "background: 0x%lx (%s)\n",
7917 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7918 fprintf (stderr
, "font_name: %s (%s)\n",
7920 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7921 #ifdef HAVE_X_WINDOWS
7922 fprintf (stderr
, "font = %p\n", face
->font
);
7924 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7925 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7926 fprintf (stderr
, "underline: %d (%s)\n",
7928 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7929 fprintf (stderr
, "hash: %d\n", face
->hash
);
7930 fprintf (stderr
, "charset: %d\n", face
->charset
);
7934 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7942 fprintf (stderr
, "font selection order: ");
7943 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7944 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7945 fprintf (stderr
, "\n");
7947 fprintf (stderr
, "alternative fonts: ");
7948 debug_print (Vface_alternative_font_family_alist
);
7949 fprintf (stderr
, "\n");
7951 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7952 Fdump_face (make_number (i
));
7958 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7960 error ("Not a valid face");
7961 dump_realized_face (face
);
7968 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7969 0, 0, 0, doc
: /* */)
7972 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7973 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7974 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7978 #endif /* GLYPH_DEBUG != 0 */
7982 /***********************************************************************
7984 ***********************************************************************/
7989 Qface
= intern ("face");
7991 Qface_no_inherit
= intern ("face-no-inherit");
7992 staticpro (&Qface_no_inherit
);
7993 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7994 staticpro (&Qbitmap_spec_p
);
7995 Qframe_set_background_mode
= intern ("frame-set-background-mode");
7996 staticpro (&Qframe_set_background_mode
);
7998 /* Lisp face attribute keywords. */
7999 QCfamily
= intern (":family");
8000 staticpro (&QCfamily
);
8001 QCheight
= intern (":height");
8002 staticpro (&QCheight
);
8003 QCweight
= intern (":weight");
8004 staticpro (&QCweight
);
8005 QCslant
= intern (":slant");
8006 staticpro (&QCslant
);
8007 QCunderline
= intern (":underline");
8008 staticpro (&QCunderline
);
8009 QCinverse_video
= intern (":inverse-video");
8010 staticpro (&QCinverse_video
);
8011 QCreverse_video
= intern (":reverse-video");
8012 staticpro (&QCreverse_video
);
8013 QCforeground
= intern (":foreground");
8014 staticpro (&QCforeground
);
8015 QCbackground
= intern (":background");
8016 staticpro (&QCbackground
);
8017 QCstipple
= intern (":stipple");
8018 staticpro (&QCstipple
);
8019 QCwidth
= intern (":width");
8020 staticpro (&QCwidth
);
8021 QCfont
= intern (":font");
8022 staticpro (&QCfont
);
8023 QCbold
= intern (":bold");
8024 staticpro (&QCbold
);
8025 QCitalic
= intern (":italic");
8026 staticpro (&QCitalic
);
8027 QCoverline
= intern (":overline");
8028 staticpro (&QCoverline
);
8029 QCstrike_through
= intern (":strike-through");
8030 staticpro (&QCstrike_through
);
8031 QCbox
= intern (":box");
8033 QCinherit
= intern (":inherit");
8034 staticpro (&QCinherit
);
8036 /* Symbols used for Lisp face attribute values. */
8037 QCcolor
= intern (":color");
8038 staticpro (&QCcolor
);
8039 QCline_width
= intern (":line-width");
8040 staticpro (&QCline_width
);
8041 QCstyle
= intern (":style");
8042 staticpro (&QCstyle
);
8043 Qreleased_button
= intern ("released-button");
8044 staticpro (&Qreleased_button
);
8045 Qpressed_button
= intern ("pressed-button");
8046 staticpro (&Qpressed_button
);
8047 Qnormal
= intern ("normal");
8048 staticpro (&Qnormal
);
8049 Qultra_light
= intern ("ultra-light");
8050 staticpro (&Qultra_light
);
8051 Qextra_light
= intern ("extra-light");
8052 staticpro (&Qextra_light
);
8053 Qlight
= intern ("light");
8054 staticpro (&Qlight
);
8055 Qsemi_light
= intern ("semi-light");
8056 staticpro (&Qsemi_light
);
8057 Qsemi_bold
= intern ("semi-bold");
8058 staticpro (&Qsemi_bold
);
8059 Qbold
= intern ("bold");
8061 Qextra_bold
= intern ("extra-bold");
8062 staticpro (&Qextra_bold
);
8063 Qultra_bold
= intern ("ultra-bold");
8064 staticpro (&Qultra_bold
);
8065 Qoblique
= intern ("oblique");
8066 staticpro (&Qoblique
);
8067 Qitalic
= intern ("italic");
8068 staticpro (&Qitalic
);
8069 Qreverse_oblique
= intern ("reverse-oblique");
8070 staticpro (&Qreverse_oblique
);
8071 Qreverse_italic
= intern ("reverse-italic");
8072 staticpro (&Qreverse_italic
);
8073 Qultra_condensed
= intern ("ultra-condensed");
8074 staticpro (&Qultra_condensed
);
8075 Qextra_condensed
= intern ("extra-condensed");
8076 staticpro (&Qextra_condensed
);
8077 Qcondensed
= intern ("condensed");
8078 staticpro (&Qcondensed
);
8079 Qsemi_condensed
= intern ("semi-condensed");
8080 staticpro (&Qsemi_condensed
);
8081 Qsemi_expanded
= intern ("semi-expanded");
8082 staticpro (&Qsemi_expanded
);
8083 Qexpanded
= intern ("expanded");
8084 staticpro (&Qexpanded
);
8085 Qextra_expanded
= intern ("extra-expanded");
8086 staticpro (&Qextra_expanded
);
8087 Qultra_expanded
= intern ("ultra-expanded");
8088 staticpro (&Qultra_expanded
);
8089 Qbackground_color
= intern ("background-color");
8090 staticpro (&Qbackground_color
);
8091 Qforeground_color
= intern ("foreground-color");
8092 staticpro (&Qforeground_color
);
8093 Qunspecified
= intern ("unspecified");
8094 staticpro (&Qunspecified
);
8095 Qignore_defface
= intern (":ignore-defface");
8096 staticpro (&Qignore_defface
);
8098 Qface_alias
= intern ("face-alias");
8099 staticpro (&Qface_alias
);
8100 Qdefault
= intern ("default");
8101 staticpro (&Qdefault
);
8102 Qtool_bar
= intern ("tool-bar");
8103 staticpro (&Qtool_bar
);
8104 Qregion
= intern ("region");
8105 staticpro (&Qregion
);
8106 Qfringe
= intern ("fringe");
8107 staticpro (&Qfringe
);
8108 Qheader_line
= intern ("header-line");
8109 staticpro (&Qheader_line
);
8110 Qscroll_bar
= intern ("scroll-bar");
8111 staticpro (&Qscroll_bar
);
8112 Qmenu
= intern ("menu");
8114 Qcursor
= intern ("cursor");
8115 staticpro (&Qcursor
);
8116 Qborder
= intern ("border");
8117 staticpro (&Qborder
);
8118 Qmouse
= intern ("mouse");
8119 staticpro (&Qmouse
);
8120 Qmode_line_inactive
= intern ("mode-line-inactive");
8121 staticpro (&Qmode_line_inactive
);
8122 Qvertical_border
= intern ("vertical-border");
8123 staticpro (&Qvertical_border
);
8124 Qtty_color_desc
= intern ("tty-color-desc");
8125 staticpro (&Qtty_color_desc
);
8126 Qtty_color_standard_values
= intern ("tty-color-standard-values");
8127 staticpro (&Qtty_color_standard_values
);
8128 Qtty_color_by_index
= intern ("tty-color-by-index");
8129 staticpro (&Qtty_color_by_index
);
8130 Qtty_color_alist
= intern ("tty-color-alist");
8131 staticpro (&Qtty_color_alist
);
8132 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
8133 staticpro (&Qscalable_fonts_allowed
);
8135 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
8136 staticpro (&Vparam_value_alist
);
8137 Vface_alternative_font_family_alist
= Qnil
;
8138 staticpro (&Vface_alternative_font_family_alist
);
8139 Vface_alternative_font_registry_alist
= Qnil
;
8140 staticpro (&Vface_alternative_font_registry_alist
);
8142 defsubr (&Sinternal_make_lisp_face
);
8143 defsubr (&Sinternal_lisp_face_p
);
8144 defsubr (&Sinternal_set_lisp_face_attribute
);
8145 #ifdef HAVE_WINDOW_SYSTEM
8146 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
8148 defsubr (&Scolor_gray_p
);
8149 defsubr (&Scolor_supported_p
);
8150 defsubr (&Sface_attribute_relative_p
);
8151 defsubr (&Smerge_face_attribute
);
8152 defsubr (&Sinternal_get_lisp_face_attribute
);
8153 defsubr (&Sinternal_lisp_face_attribute_values
);
8154 defsubr (&Sinternal_lisp_face_equal_p
);
8155 defsubr (&Sinternal_lisp_face_empty_p
);
8156 defsubr (&Sinternal_copy_lisp_face
);
8157 defsubr (&Sinternal_merge_in_global_face
);
8158 defsubr (&Sface_font
);
8159 defsubr (&Sframe_face_alist
);
8160 defsubr (&Sdisplay_supports_face_attributes_p
);
8161 defsubr (&Scolor_distance
);
8162 defsubr (&Sinternal_set_font_selection_order
);
8163 defsubr (&Sinternal_set_alternative_font_family_alist
);
8164 defsubr (&Sinternal_set_alternative_font_registry_alist
);
8165 defsubr (&Sface_attributes_as_vector
);
8167 defsubr (&Sdump_face
);
8168 defsubr (&Sshow_face_resources
);
8169 #endif /* GLYPH_DEBUG */
8170 defsubr (&Sclear_face_cache
);
8171 defsubr (&Stty_suppress_bold_inverse_default_colors
);
8173 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
8174 defsubr (&Sdump_colors
);
8177 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
8178 doc
: /* *Limit for font matching.
8179 If an integer > 0, font matching functions won't load more than
8180 that number of fonts when searching for a matching font. */);
8181 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
8183 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
8184 doc
: /* List of global face definitions (for internal use only.) */);
8185 Vface_new_frame_defaults
= Qnil
;
8187 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
8188 doc
: /* *Default stipple pattern used on monochrome displays.
8189 This stipple pattern is used on monochrome displays
8190 instead of shades of gray for a face background color.
8191 See `set-face-stipple' for possible values for this variable. */);
8192 Vface_default_stipple
= build_string ("gray3");
8194 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
8195 doc
: /* An alist of defined terminal colors and their RGB values. */);
8196 Vtty_defined_color_alist
= Qnil
;
8198 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
8199 doc
: /* Allowed scalable fonts.
8200 A value of nil means don't allow any scalable fonts.
8201 A value of t means allow any scalable font.
8202 Otherwise, value must be a list of regular expressions. A font may be
8203 scaled if its name matches a regular expression in the list.
8204 Note that if value is nil, a scalable font might still be used, if no
8205 other font of the appropriate family and registry is available. */);
8206 Vscalable_fonts_allowed
= Qnil
;
8208 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
8209 doc
: /* List of ignored fonts.
8210 Each element is a regular expression that matches names of fonts to
8212 Vface_ignored_fonts
= Qnil
;
8214 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
8215 doc
: /* Alist of fonts vs the rescaling factors.
8216 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
8217 FONT-NAME-PATTERN is a regular expression matching a font name, and
8218 RESCALE-RATIO is a floating point number to specify how much larger
8219 \(or smaller) font we should use. For instance, if a face requests
8220 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
8221 Vface_font_rescale_alist
= Qnil
;
8223 #ifdef HAVE_WINDOW_SYSTEM
8224 defsubr (&Sbitmap_spec_p
);
8225 defsubr (&Sx_list_fonts
);
8226 defsubr (&Sinternal_face_x_get_resource
);
8227 defsubr (&Sx_family_fonts
);
8228 defsubr (&Sx_font_family_list
);
8229 #endif /* HAVE_WINDOW_SYSTEM */
8232 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
8233 (do not change this comment) */