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 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 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
;
3228 internal_resolve_face_name (nargs
, args
)
3232 Fget (args
[0], args
[1]);
3236 resolve_face_name_error (ignore
)
3242 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3243 to make it a symbol. If FACE_NAME is an alias for another face,
3244 return that face's name.
3246 Return default face in case of errors. */
3249 resolve_face_name (face_name
, signal_p
)
3250 Lisp_Object face_name
;
3253 Lisp_Object orig_face
;
3254 Lisp_Object tortoise
, hare
;
3256 if (STRINGP (face_name
))
3257 face_name
= intern (SDATA (face_name
));
3259 if (NILP (face_name
) || !SYMBOLP (face_name
))
3262 orig_face
= face_name
;
3263 tortoise
= hare
= face_name
;
3268 hare
= Fget (hare
, Qface_alias
);
3269 if (NILP (hare
) || !SYMBOLP (hare
))
3273 hare
= Fget (hare
, Qface_alias
);
3274 if (NILP (hare
) || !SYMBOLP (hare
))
3277 tortoise
= Fget (tortoise
, Qface_alias
);
3278 if (EQ (hare
, tortoise
))
3281 xsignal1 (Qcircular_list
, orig_face
);
3290 /* Return the face definition of FACE_NAME on frame F. F null means
3291 return the definition for new frames. FACE_NAME may be a string or
3292 a symbol (apparently Emacs 20.2 allowed strings as face names in
3293 face text properties; Ediff uses that). If FACE_NAME is an alias
3294 for another face, return that face's definition. If SIGNAL_P is
3295 non-zero, signal an error if FACE_NAME is not a valid face name.
3296 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3299 static INLINE Lisp_Object
3300 lface_from_face_name (f
, face_name
, signal_p
)
3302 Lisp_Object face_name
;
3307 face_name
= resolve_face_name (face_name
, signal_p
);
3310 lface
= assq_no_quit (face_name
, f
->face_alist
);
3312 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3315 lface
= XCDR (lface
);
3317 signal_error ("Invalid face", face_name
);
3319 check_lface (lface
);
3324 /* Get face attributes of face FACE_NAME from frame-local faces on
3325 frame F. Store the resulting attributes in ATTRS which must point
3326 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3327 is non-zero, signal an error if FACE_NAME does not name a face.
3328 Otherwise, value is zero if FACE_NAME is not a face. */
3331 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3333 Lisp_Object face_name
;
3340 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3343 bcopy (XVECTOR (lface
)->contents
, attrs
,
3344 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3354 /* Non-zero if all attributes in face attribute vector ATTRS are
3355 specified, i.e. are non-nil. */
3358 lface_fully_specified_p (attrs
)
3363 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3364 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3365 && i
!= LFACE_AVGWIDTH_INDEX
)
3366 if ((UNSPECIFIEDP (attrs
[i
]) || IGNORE_DEFFACE_P (attrs
[i
]))
3368 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3369 always unspecified. */
3370 && i
!= LFACE_STIPPLE_INDEX
3375 return i
== LFACE_VECTOR_SIZE
;
3378 #ifdef HAVE_WINDOW_SYSTEM
3380 /* Set font-related attributes of Lisp face LFACE from the fullname of
3381 the font opened by FONTNAME. If FORCE_P is zero, set only
3382 unspecified attributes of LFACE. The exception is `font'
3383 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3385 If FONTNAME is not available on frame F,
3386 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3387 If the fullname is not in a valid XLFD format,
3388 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3389 in LFACE and return 1.
3390 Otherwise, return 1. */
3393 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3396 Lisp_Object fontname
;
3397 int force_p
, may_fail_p
;
3399 struct font_name font
;
3404 char *font_name
= SDATA (fontname
);
3405 struct font_info
*font_info
;
3407 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3408 fontset
= fs_query_fontset (fontname
, 0);
3410 font_name
= SDATA (fontset_ascii (fontset
));
3412 /* Check if FONT_NAME is surely available on the system. Usually
3413 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3414 returns quickly. But, even if FONT_NAME is not yet cached,
3415 caching it now is not futail because we anyway load the font
3418 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3428 font
.name
= STRDUPA (font_info
->full_name
);
3429 have_xlfd_p
= split_font_name (f
, &font
, 1);
3431 /* Set attributes only if unspecified, otherwise face defaults for
3432 new frames would never take effect. If we couldn't get a font
3433 name conforming to XLFD, set normal values. */
3435 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3440 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3441 + strlen (font
.fields
[XLFD_FOUNDRY
])
3443 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3444 font
.fields
[XLFD_FAMILY
]);
3445 val
= build_string (buffer
);
3448 val
= build_string ("*");
3449 LFACE_FAMILY (lface
) = val
;
3452 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3455 pt
= xlfd_point_size (f
, &font
);
3457 pt
= pixel_point_size (f
, font_info
->height
* 10);
3459 LFACE_HEIGHT (lface
) = make_number (pt
);
3462 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3463 LFACE_SWIDTH (lface
)
3464 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3466 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3467 LFACE_AVGWIDTH (lface
)
3469 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3472 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3473 LFACE_WEIGHT (lface
)
3474 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3476 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3478 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3480 LFACE_FONT (lface
) = fontname
;
3485 #endif /* HAVE_WINDOW_SYSTEM */
3488 /* Merges the face height FROM with the face height TO, and returns the
3489 merged height. If FROM is an invalid height, then INVALID is
3490 returned instead. FROM and TO may be either absolute face heights or
3491 `relative' heights; the returned value is always an absolute height
3492 unless both FROM and TO are relative. GCPRO is a lisp value that
3493 will be protected from garbage-collection if this function makes a
3497 merge_face_heights (from
, to
, invalid
)
3498 Lisp_Object from
, to
, invalid
;
3500 Lisp_Object result
= invalid
;
3502 if (INTEGERP (from
))
3503 /* FROM is absolute, just use it as is. */
3505 else if (FLOATP (from
))
3506 /* FROM is a scale, use it to adjust TO. */
3509 /* relative X absolute => absolute */
3510 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3511 else if (FLOATP (to
))
3512 /* relative X relative => relative */
3513 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3514 else if (UNSPECIFIEDP (to
))
3517 else if (FUNCTIONP (from
))
3518 /* FROM is a function, which use to adjust TO. */
3520 /* Call function with current height as argument.
3521 From is the new height. */
3522 Lisp_Object args
[2];
3526 result
= safe_call (2, args
);
3528 /* Ensure that if TO was absolute, so is the result. */
3529 if (INTEGERP (to
) && !INTEGERP (result
))
3537 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3538 store the resulting attributes in TO, which must be already be
3539 completely specified and contain only absolute attributes. Every
3540 specified attribute of FROM overrides the corresponding attribute of
3541 TO; relative attributes in FROM are merged with the absolute value in
3542 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3543 loops in face inheritance; it should be 0 when called from other
3547 merge_face_vectors (f
, from
, to
, named_merge_points
)
3549 Lisp_Object
*from
, *to
;
3550 struct named_merge_point
*named_merge_points
;
3554 /* If FROM inherits from some other faces, merge their attributes into
3555 TO before merging FROM's direct attributes. Note that an :inherit
3556 attribute of `unspecified' is the same as one of nil; we never
3557 merge :inherit attributes, so nil is more correct, but lots of
3558 other code uses `unspecified' as a generic value for face attributes. */
3559 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3560 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3561 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3563 /* If TO specifies a :font attribute, and FROM specifies some
3564 font-related attribute, we need to clear TO's :font attribute
3565 (because it will be inconsistent with whatever FROM specifies, and
3566 FROM takes precedence). */
3567 if (!NILP (to
[LFACE_FONT_INDEX
])
3568 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3569 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3570 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3571 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3572 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3573 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3574 to
[LFACE_FONT_INDEX
] = Qnil
;
3576 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3577 if (!UNSPECIFIEDP (from
[i
]))
3579 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3580 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
3585 /* TO is always an absolute face, which should inherit from nothing.
3586 We blindly copy the :inherit attribute above and fix it up here. */
3587 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3590 /* Merge the named face FACE_NAME on frame F, into the vector of face
3591 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3592 inheritance. Returns true if FACE_NAME is a valid face name and
3593 merging succeeded. */
3596 merge_named_face (f
, face_name
, to
, named_merge_points
)
3598 Lisp_Object face_name
;
3600 struct named_merge_point
*named_merge_points
;
3602 struct named_merge_point named_merge_point
;
3604 if (push_named_merge_point (&named_merge_point
,
3605 face_name
, &named_merge_points
))
3607 struct gcpro gcpro1
;
3608 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3609 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3613 GCPRO1 (named_merge_point
.face_name
);
3614 merge_face_vectors (f
, from
, to
, named_merge_points
);
3625 /* Merge face attributes from the lisp `face reference' FACE_REF on
3626 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3627 problems with FACE_REF cause an error message to be shown. Return
3628 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3629 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3630 list structure; it may be 0 for most callers.
3632 FACE_REF may be a single face specification or a list of such
3633 specifications. Each face specification can be:
3635 1. A symbol or string naming a Lisp face.
3637 2. A property list of the form (KEYWORD VALUE ...) where each
3638 KEYWORD is a face attribute name, and value is an appropriate value
3641 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3642 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3643 for compatibility with 20.2.
3645 Face specifications earlier in lists take precedence over later
3649 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3651 Lisp_Object face_ref
;
3654 struct named_merge_point
*named_merge_points
;
3656 int ok
= 1; /* Succeed without an error? */
3658 if (CONSP (face_ref
))
3660 Lisp_Object first
= XCAR (face_ref
);
3662 if (EQ (first
, Qforeground_color
)
3663 || EQ (first
, Qbackground_color
))
3665 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3666 . COLOR). COLOR must be a string. */
3667 Lisp_Object color_name
= XCDR (face_ref
);
3668 Lisp_Object color
= first
;
3670 if (STRINGP (color_name
))
3672 if (EQ (color
, Qforeground_color
))
3673 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3675 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3680 add_to_log ("Invalid face color", color_name
, Qnil
);
3684 else if (SYMBOLP (first
)
3685 && *SDATA (SYMBOL_NAME (first
)) == ':')
3687 /* Assume this is the property list form. */
3688 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3690 Lisp_Object keyword
= XCAR (face_ref
);
3691 Lisp_Object value
= XCAR (XCDR (face_ref
));
3694 /* Specifying `unspecified' is a no-op. */
3695 if (EQ (value
, Qunspecified
))
3697 else if (EQ (keyword
, QCfamily
))
3699 if (STRINGP (value
))
3700 to
[LFACE_FAMILY_INDEX
] = value
;
3704 else if (EQ (keyword
, QCheight
))
3706 Lisp_Object new_height
=
3707 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
3709 if (! NILP (new_height
))
3710 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3714 else if (EQ (keyword
, QCweight
))
3717 && face_numeric_weight (value
) >= 0)
3718 to
[LFACE_WEIGHT_INDEX
] = value
;
3722 else if (EQ (keyword
, QCslant
))
3725 && face_numeric_slant (value
) >= 0)
3726 to
[LFACE_SLANT_INDEX
] = value
;
3730 else if (EQ (keyword
, QCunderline
))
3735 to
[LFACE_UNDERLINE_INDEX
] = value
;
3739 else if (EQ (keyword
, QCoverline
))
3744 to
[LFACE_OVERLINE_INDEX
] = value
;
3748 else if (EQ (keyword
, QCstrike_through
))
3753 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3757 else if (EQ (keyword
, QCbox
))
3760 value
= make_number (1);
3761 if (INTEGERP (value
)
3765 to
[LFACE_BOX_INDEX
] = value
;
3769 else if (EQ (keyword
, QCinverse_video
)
3770 || EQ (keyword
, QCreverse_video
))
3772 if (EQ (value
, Qt
) || NILP (value
))
3773 to
[LFACE_INVERSE_INDEX
] = value
;
3777 else if (EQ (keyword
, QCforeground
))
3779 if (STRINGP (value
))
3780 to
[LFACE_FOREGROUND_INDEX
] = value
;
3784 else if (EQ (keyword
, QCbackground
))
3786 if (STRINGP (value
))
3787 to
[LFACE_BACKGROUND_INDEX
] = value
;
3791 else if (EQ (keyword
, QCstipple
))
3793 #ifdef HAVE_X_WINDOWS
3794 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3795 if (!NILP (pixmap_p
))
3796 to
[LFACE_STIPPLE_INDEX
] = value
;
3801 else if (EQ (keyword
, QCwidth
))
3804 && face_numeric_swidth (value
) >= 0)
3805 to
[LFACE_SWIDTH_INDEX
] = value
;
3809 else if (EQ (keyword
, QCinherit
))
3811 /* This is not really very useful; it's just like a
3812 normal face reference. */
3813 if (! merge_face_ref (f
, value
, to
,
3814 err_msgs
, named_merge_points
))
3822 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
3826 face_ref
= XCDR (XCDR (face_ref
));
3831 /* This is a list of face refs. Those at the beginning of the
3832 list take precedence over what follows, so we have to merge
3833 from the end backwards. */
3834 Lisp_Object next
= XCDR (face_ref
);
3837 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
3839 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
3845 /* FACE_REF ought to be a face name. */
3846 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
3847 if (!ok
&& err_msgs
)
3848 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
3855 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3856 Sinternal_make_lisp_face
, 1, 2, 0,
3857 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3858 If FACE was not known as a face before, create a new one.
3859 If optional argument FRAME is specified, make a frame-local face
3860 for that frame. Otherwise operate on the global face definition.
3861 Value is a vector of face attributes. */)
3863 Lisp_Object face
, frame
;
3865 Lisp_Object global_lface
, lface
;
3869 CHECK_SYMBOL (face
);
3870 global_lface
= lface_from_face_name (NULL
, face
, 0);
3874 CHECK_LIVE_FRAME (frame
);
3876 lface
= lface_from_face_name (f
, face
, 0);
3879 f
= NULL
, lface
= Qnil
;
3881 /* Add a global definition if there is none. */
3882 if (NILP (global_lface
))
3884 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3886 AREF (global_lface
, 0) = Qface
;
3887 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3888 Vface_new_frame_defaults
);
3890 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3891 face id to Lisp face is given by the vector lface_id_to_name.
3892 The mapping from Lisp face to Lisp face id is given by the
3893 property `face' of the Lisp face name. */
3894 if (next_lface_id
== lface_id_to_name_size
)
3896 int new_size
= max (50, 2 * lface_id_to_name_size
);
3897 int sz
= new_size
* sizeof *lface_id_to_name
;
3898 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3899 lface_id_to_name_size
= new_size
;
3902 lface_id_to_name
[next_lface_id
] = face
;
3903 Fput (face
, Qface
, make_number (next_lface_id
));
3907 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3908 AREF (global_lface
, i
) = Qunspecified
;
3910 /* Add a frame-local definition. */
3915 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3917 AREF (lface
, 0) = Qface
;
3918 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3921 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3922 AREF (lface
, i
) = Qunspecified
;
3925 lface
= global_lface
;
3927 /* Changing a named face means that all realized faces depending on
3928 that face are invalid. Since we cannot tell which realized faces
3929 depend on the face, make sure they are all removed. This is done
3930 by incrementing face_change_count. The next call to
3931 init_iterator will then free realized faces. */
3932 if (NILP (Fget (face
, Qface_no_inherit
)))
3934 ++face_change_count
;
3935 ++windows_or_buffers_changed
;
3938 xassert (LFACEP (lface
));
3939 check_lface (lface
);
3944 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3945 Sinternal_lisp_face_p
, 1, 2, 0,
3946 doc
: /* Return non-nil if FACE names a face.
3947 If optional second argument FRAME is non-nil, check for the
3948 existence of a frame-local face with name FACE on that frame.
3949 Otherwise check for the existence of a global face. */)
3951 Lisp_Object face
, frame
;
3957 CHECK_LIVE_FRAME (frame
);
3958 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3961 lface
= lface_from_face_name (NULL
, face
, 0);
3967 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3968 Sinternal_copy_lisp_face
, 4, 4, 0,
3969 doc
: /* Copy face FROM to TO.
3970 If FRAME is t, copy the global face definition of FROM.
3971 Otherwise, copy the frame-local definition of FROM on FRAME.
3972 If NEW-FRAME is a frame, copy that data into the frame-local
3973 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
3974 FRAME controls where the data is copied to.
3976 The value is TO. */)
3977 (from
, to
, frame
, new_frame
)
3978 Lisp_Object from
, to
, frame
, new_frame
;
3980 Lisp_Object lface
, copy
;
3982 CHECK_SYMBOL (from
);
3987 /* Copy global definition of FROM. We don't make copies of
3988 strings etc. because 20.2 didn't do it either. */
3989 lface
= lface_from_face_name (NULL
, from
, 1);
3990 copy
= Finternal_make_lisp_face (to
, Qnil
);
3994 /* Copy frame-local definition of FROM. */
3995 if (NILP (new_frame
))
3997 CHECK_LIVE_FRAME (frame
);
3998 CHECK_LIVE_FRAME (new_frame
);
3999 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
4000 copy
= Finternal_make_lisp_face (to
, new_frame
);
4003 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
4004 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
4006 /* Changing a named face means that all realized faces depending on
4007 that face are invalid. Since we cannot tell which realized faces
4008 depend on the face, make sure they are all removed. This is done
4009 by incrementing face_change_count. The next call to
4010 init_iterator will then free realized faces. */
4011 if (NILP (Fget (to
, Qface_no_inherit
)))
4013 ++face_change_count
;
4014 ++windows_or_buffers_changed
;
4021 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
4022 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
4023 doc
: /* Set attribute ATTR of FACE to VALUE.
4024 FRAME being a frame means change the face on that frame.
4025 FRAME nil means change the face of the selected frame.
4026 FRAME t means change the default for new frames.
4027 FRAME 0 means change the face on all frames, and change the default
4029 (face
, attr
, value
, frame
)
4030 Lisp_Object face
, attr
, value
, frame
;
4033 Lisp_Object old_value
= Qnil
;
4034 /* Set 1 if ATTR is QCfont. */
4035 int font_attr_p
= 0;
4036 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
4037 int font_related_attr_p
= 0;
4039 CHECK_SYMBOL (face
);
4040 CHECK_SYMBOL (attr
);
4042 face
= resolve_face_name (face
, 1);
4044 /* If FRAME is 0, change face on all frames, and change the
4045 default for new frames. */
4046 if (INTEGERP (frame
) && XINT (frame
) == 0)
4049 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
4050 FOR_EACH_FRAME (tail
, frame
)
4051 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4055 /* Set lface to the Lisp attribute vector of FACE. */
4058 lface
= lface_from_face_name (NULL
, face
, 1);
4060 /* When updating face-new-frame-defaults, we put :ignore-defface
4061 where the caller wants `unspecified'. This forces the frame
4062 defaults to ignore the defface value. Otherwise, the defface
4063 will take effect, which is generally not what is intended.
4064 The value of that attribute will be inherited from some other
4065 face during face merging. See internal_merge_in_global_face. */
4066 if (UNSPECIFIEDP (value
))
4067 value
= Qignore_defface
;
4072 frame
= selected_frame
;
4074 CHECK_LIVE_FRAME (frame
);
4075 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4077 /* If a frame-local face doesn't exist yet, create one. */
4079 lface
= Finternal_make_lisp_face (face
, frame
);
4082 if (EQ (attr
, QCfamily
))
4084 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4086 CHECK_STRING (value
);
4087 if (SCHARS (value
) == 0)
4088 signal_error ("Invalid face family", value
);
4090 old_value
= LFACE_FAMILY (lface
);
4091 LFACE_FAMILY (lface
) = value
;
4092 font_related_attr_p
= 1;
4094 else if (EQ (attr
, QCheight
))
4096 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4100 test
= (EQ (face
, Qdefault
)
4102 /* The default face must have an absolute size,
4103 otherwise, we do a test merge with a random
4104 height to see if VALUE's ok. */
4105 : merge_face_heights (value
, make_number (10), Qnil
));
4107 if (!INTEGERP (test
) || XINT (test
) <= 0)
4108 signal_error ("Invalid face height", value
);
4111 old_value
= LFACE_HEIGHT (lface
);
4112 LFACE_HEIGHT (lface
) = value
;
4113 font_related_attr_p
= 1;
4115 else if (EQ (attr
, QCweight
))
4117 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4119 CHECK_SYMBOL (value
);
4120 if (face_numeric_weight (value
) < 0)
4121 signal_error ("Invalid face weight", value
);
4123 old_value
= LFACE_WEIGHT (lface
);
4124 LFACE_WEIGHT (lface
) = value
;
4125 font_related_attr_p
= 1;
4127 else if (EQ (attr
, QCslant
))
4129 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4131 CHECK_SYMBOL (value
);
4132 if (face_numeric_slant (value
) < 0)
4133 signal_error ("Invalid face slant", value
);
4135 old_value
= LFACE_SLANT (lface
);
4136 LFACE_SLANT (lface
) = value
;
4137 font_related_attr_p
= 1;
4139 else if (EQ (attr
, QCunderline
))
4141 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4142 if ((SYMBOLP (value
)
4144 && !EQ (value
, Qnil
))
4145 /* Underline color. */
4147 && SCHARS (value
) == 0))
4148 signal_error ("Invalid face underline", value
);
4150 old_value
= LFACE_UNDERLINE (lface
);
4151 LFACE_UNDERLINE (lface
) = value
;
4153 else if (EQ (attr
, QCoverline
))
4155 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4156 if ((SYMBOLP (value
)
4158 && !EQ (value
, Qnil
))
4159 /* Overline color. */
4161 && SCHARS (value
) == 0))
4162 signal_error ("Invalid face overline", value
);
4164 old_value
= LFACE_OVERLINE (lface
);
4165 LFACE_OVERLINE (lface
) = value
;
4167 else if (EQ (attr
, QCstrike_through
))
4169 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4170 if ((SYMBOLP (value
)
4172 && !EQ (value
, Qnil
))
4173 /* Strike-through color. */
4175 && SCHARS (value
) == 0))
4176 signal_error ("Invalid face strike-through", value
);
4178 old_value
= LFACE_STRIKE_THROUGH (lface
);
4179 LFACE_STRIKE_THROUGH (lface
) = value
;
4181 else if (EQ (attr
, QCbox
))
4185 /* Allow t meaning a simple box of width 1 in foreground color
4188 value
= make_number (1);
4190 if (UNSPECIFIEDP (value
) || IGNORE_DEFFACE_P (value
))
4192 else if (NILP (value
))
4194 else if (INTEGERP (value
))
4195 valid_p
= XINT (value
) != 0;
4196 else if (STRINGP (value
))
4197 valid_p
= SCHARS (value
) > 0;
4198 else if (CONSP (value
))
4214 if (EQ (k
, QCline_width
))
4216 if (!INTEGERP (v
) || XINT (v
) == 0)
4219 else if (EQ (k
, QCcolor
))
4221 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
4224 else if (EQ (k
, QCstyle
))
4226 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4233 valid_p
= NILP (tem
);
4239 signal_error ("Invalid face box", value
);
4241 old_value
= LFACE_BOX (lface
);
4242 LFACE_BOX (lface
) = value
;
4244 else if (EQ (attr
, QCinverse_video
)
4245 || EQ (attr
, QCreverse_video
))
4247 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4249 CHECK_SYMBOL (value
);
4250 if (!EQ (value
, Qt
) && !NILP (value
))
4251 signal_error ("Invalid inverse-video face attribute value", value
);
4253 old_value
= LFACE_INVERSE (lface
);
4254 LFACE_INVERSE (lface
) = value
;
4256 else if (EQ (attr
, QCforeground
))
4258 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4260 /* Don't check for valid color names here because it depends
4261 on the frame (display) whether the color will be valid
4262 when the face is realized. */
4263 CHECK_STRING (value
);
4264 if (SCHARS (value
) == 0)
4265 signal_error ("Empty foreground color value", value
);
4267 old_value
= LFACE_FOREGROUND (lface
);
4268 LFACE_FOREGROUND (lface
) = value
;
4270 else if (EQ (attr
, QCbackground
))
4272 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4274 /* Don't check for valid color names here because it depends
4275 on the frame (display) whether the color will be valid
4276 when the face is realized. */
4277 CHECK_STRING (value
);
4278 if (SCHARS (value
) == 0)
4279 signal_error ("Empty background color value", value
);
4281 old_value
= LFACE_BACKGROUND (lface
);
4282 LFACE_BACKGROUND (lface
) = value
;
4284 else if (EQ (attr
, QCstipple
))
4286 #ifdef HAVE_X_WINDOWS
4287 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
4289 && NILP (Fbitmap_spec_p (value
)))
4290 signal_error ("Invalid stipple attribute", value
);
4291 old_value
= LFACE_STIPPLE (lface
);
4292 LFACE_STIPPLE (lface
) = value
;
4293 #endif /* HAVE_X_WINDOWS */
4295 else if (EQ (attr
, QCwidth
))
4297 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4299 CHECK_SYMBOL (value
);
4300 if (face_numeric_swidth (value
) < 0)
4301 signal_error ("Invalid face width", value
);
4303 old_value
= LFACE_SWIDTH (lface
);
4304 LFACE_SWIDTH (lface
) = value
;
4305 font_related_attr_p
= 1;
4307 else if (EQ (attr
, QCfont
))
4309 #ifdef HAVE_WINDOW_SYSTEM
4310 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4312 /* Set font-related attributes of the Lisp face from an XLFD
4318 f
= SELECTED_FRAME ();
4320 f
= check_x_frame (frame
);
4322 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4324 CHECK_STRING (value
);
4326 /* VALUE may be a fontset name or an alias of fontset. In
4327 such a case, use the base fontset name. */
4328 tmp
= Fquery_fontset (value
, Qnil
);
4332 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4333 signal_error ("Invalid font or fontset name", value
);
4338 #endif /* HAVE_WINDOW_SYSTEM */
4340 else if (EQ (attr
, QCinherit
))
4343 if (SYMBOLP (value
))
4346 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4347 if (!SYMBOLP (XCAR (tail
)))
4350 LFACE_INHERIT (lface
) = value
;
4352 signal_error ("Invalid face inheritance", value
);
4354 else if (EQ (attr
, QCbold
))
4356 old_value
= LFACE_WEIGHT (lface
);
4357 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4358 font_related_attr_p
= 1;
4360 else if (EQ (attr
, QCitalic
))
4362 old_value
= LFACE_SLANT (lface
);
4363 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4364 font_related_attr_p
= 1;
4367 signal_error ("Invalid face attribute name", attr
);
4369 if (font_related_attr_p
4370 && !UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
))
4371 /* If a font-related attribute other than QCfont is specified, the
4372 original `font' attribute nor that of default face is useless
4373 to determine a new font. Thus, we set it to nil so that font
4374 selection mechanism doesn't use it. */
4375 LFACE_FONT (lface
) = Qnil
;
4377 /* Changing a named face means that all realized faces depending on
4378 that face are invalid. Since we cannot tell which realized faces
4379 depend on the face, make sure they are all removed. This is done
4380 by incrementing face_change_count. The next call to
4381 init_iterator will then free realized faces. */
4383 && NILP (Fget (face
, Qface_no_inherit
))
4384 && (EQ (attr
, QCfont
)
4385 || NILP (Fequal (old_value
, value
))))
4387 ++face_change_count
;
4388 ++windows_or_buffers_changed
;
4391 if (!UNSPECIFIEDP (value
) && !IGNORE_DEFFACE_P (value
)
4392 && NILP (Fequal (old_value
, value
)))
4398 if (EQ (face
, Qdefault
))
4400 #ifdef HAVE_WINDOW_SYSTEM
4401 /* Changed font-related attributes of the `default' face are
4402 reflected in changed `font' frame parameters. */
4404 && (font_related_attr_p
|| font_attr_p
)
4405 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4406 set_font_frame_param (frame
, lface
);
4408 #endif /* HAVE_WINDOW_SYSTEM */
4410 if (EQ (attr
, QCforeground
))
4411 param
= Qforeground_color
;
4412 else if (EQ (attr
, QCbackground
))
4413 param
= Qbackground_color
;
4415 #ifdef HAVE_WINDOW_SYSTEM
4417 else if (EQ (face
, Qscroll_bar
))
4419 /* Changing the colors of `scroll-bar' sets frame parameters
4420 `scroll-bar-foreground' and `scroll-bar-background'. */
4421 if (EQ (attr
, QCforeground
))
4422 param
= Qscroll_bar_foreground
;
4423 else if (EQ (attr
, QCbackground
))
4424 param
= Qscroll_bar_background
;
4426 #endif /* not WINDOWSNT */
4427 else if (EQ (face
, Qborder
))
4429 /* Changing background color of `border' sets frame parameter
4431 if (EQ (attr
, QCbackground
))
4432 param
= Qborder_color
;
4434 else if (EQ (face
, Qcursor
))
4436 /* Changing background color of `cursor' sets frame parameter
4438 if (EQ (attr
, QCbackground
))
4439 param
= Qcursor_color
;
4441 else if (EQ (face
, Qmouse
))
4443 /* Changing background color of `mouse' sets frame parameter
4445 if (EQ (attr
, QCbackground
))
4446 param
= Qmouse_color
;
4448 #endif /* HAVE_WINDOW_SYSTEM */
4449 else if (EQ (face
, Qmenu
))
4451 /* Indicate that we have to update the menu bar when
4452 realizing faces on FRAME. FRAME t change the
4453 default for new frames. We do this by setting
4454 setting the flag in new face caches */
4457 struct frame
*f
= XFRAME (frame
);
4458 if (FRAME_FACE_CACHE (f
) == NULL
)
4459 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4460 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4463 menu_face_changed_default
= 1;
4469 /* Update `default-frame-alist', which is used for new frames. */
4471 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4474 /* Update the current frame's parameters. */
4477 cons
= XCAR (Vparam_value_alist
);
4478 XSETCAR (cons
, param
);
4479 XSETCDR (cons
, value
);
4480 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4489 #ifdef HAVE_WINDOW_SYSTEM
4491 /* Set the `font' frame parameter of FRAME determined from `default'
4492 face attributes LFACE. If a face or fontset name is explicitely
4493 specfied in LFACE, use it as is. Otherwise, determine a font name
4494 from the other font-related atrributes of LFACE. In that case, if
4495 there's no matching font, signals an error. */
4498 set_font_frame_param (frame
, lface
)
4499 Lisp_Object frame
, lface
;
4501 struct frame
*f
= XFRAME (frame
);
4503 if (FRAME_WINDOW_P (f
))
4505 Lisp_Object font_name
;
4508 if (STRINGP (LFACE_FONT (lface
)))
4509 font_name
= LFACE_FONT (lface
);
4512 /* Choose a font name that reflects LFACE's attributes and has
4513 the registry and encoding pattern specified in the default
4514 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4515 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4517 error ("No font matches the specified attribute");
4518 font_name
= build_string (font
);
4522 f
->default_face_done_p
= 0;
4523 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4528 /* Update the corresponding face when frame parameter PARAM on frame F
4529 has been assigned the value NEW_VALUE. */
4532 update_face_from_frame_parameter (f
, param
, new_value
)
4534 Lisp_Object param
, new_value
;
4536 Lisp_Object face
= Qnil
;
4539 /* If there are no faces yet, give up. This is the case when called
4540 from Fx_create_frame, and we do the necessary things later in
4541 face-set-after-frame-defaults. */
4542 if (NILP (f
->face_alist
))
4545 if (EQ (param
, Qforeground_color
))
4548 lface
= lface_from_face_name (f
, face
, 1);
4549 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4550 ? new_value
: Qunspecified
);
4551 realize_basic_faces (f
);
4553 else if (EQ (param
, Qbackground_color
))
4557 /* Changing the background color might change the background
4558 mode, so that we have to load new defface specs.
4559 Call frame-set-background-mode to do that. */
4560 XSETFRAME (frame
, f
);
4561 call1 (Qframe_set_background_mode
, frame
);
4564 lface
= lface_from_face_name (f
, face
, 1);
4565 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4566 ? new_value
: Qunspecified
);
4567 realize_basic_faces (f
);
4569 else if (EQ (param
, Qborder_color
))
4572 lface
= lface_from_face_name (f
, face
, 1);
4573 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4574 ? new_value
: Qunspecified
);
4576 else if (EQ (param
, Qcursor_color
))
4579 lface
= lface_from_face_name (f
, face
, 1);
4580 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4581 ? new_value
: Qunspecified
);
4583 else if (EQ (param
, Qmouse_color
))
4586 lface
= lface_from_face_name (f
, face
, 1);
4587 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4588 ? new_value
: Qunspecified
);
4591 /* Changing a named face means that all realized faces depending on
4592 that face are invalid. Since we cannot tell which realized faces
4593 depend on the face, make sure they are all removed. This is done
4594 by incrementing face_change_count. The next call to
4595 init_iterator will then free realized faces. */
4597 && NILP (Fget (face
, Qface_no_inherit
)))
4599 ++face_change_count
;
4600 ++windows_or_buffers_changed
;
4605 /* Get the value of X resource RESOURCE, class CLASS for the display
4606 of frame FRAME. This is here because ordinary `x-get-resource'
4607 doesn't take a frame argument. */
4609 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4610 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4611 (resource
, class, frame
)
4612 Lisp_Object resource
, class, frame
;
4614 Lisp_Object value
= Qnil
;
4615 CHECK_STRING (resource
);
4616 CHECK_STRING (class);
4617 CHECK_LIVE_FRAME (frame
);
4619 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4620 resource
, class, Qnil
, Qnil
);
4626 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4627 If VALUE is "on" or "true", return t. If VALUE is "off" or
4628 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4629 error; if SIGNAL_P is zero, return 0. */
4632 face_boolean_x_resource_value (value
, signal_p
)
4636 Lisp_Object result
= make_number (0);
4638 xassert (STRINGP (value
));
4640 if (xstricmp (SDATA (value
), "on") == 0
4641 || xstricmp (SDATA (value
), "true") == 0)
4643 else if (xstricmp (SDATA (value
), "off") == 0
4644 || xstricmp (SDATA (value
), "false") == 0)
4646 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4647 result
= Qunspecified
;
4649 signal_error ("Invalid face attribute value from X resource", value
);
4655 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4656 Finternal_set_lisp_face_attribute_from_resource
,
4657 Sinternal_set_lisp_face_attribute_from_resource
,
4658 3, 4, 0, doc
: /* */)
4659 (face
, attr
, value
, frame
)
4660 Lisp_Object face
, attr
, value
, frame
;
4662 CHECK_SYMBOL (face
);
4663 CHECK_SYMBOL (attr
);
4664 CHECK_STRING (value
);
4666 if (xstricmp (SDATA (value
), "unspecified") == 0)
4667 value
= Qunspecified
;
4668 else if (EQ (attr
, QCheight
))
4670 value
= Fstring_to_number (value
, make_number (10));
4671 if (XINT (value
) <= 0)
4672 signal_error ("Invalid face height from X resource", value
);
4674 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4675 value
= face_boolean_x_resource_value (value
, 1);
4676 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4677 value
= intern (SDATA (value
));
4678 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4679 value
= face_boolean_x_resource_value (value
, 1);
4680 else if (EQ (attr
, QCunderline
)
4681 || EQ (attr
, QCoverline
)
4682 || EQ (attr
, QCstrike_through
))
4684 Lisp_Object boolean_value
;
4686 /* If the result of face_boolean_x_resource_value is t or nil,
4687 VALUE does NOT specify a color. */
4688 boolean_value
= face_boolean_x_resource_value (value
, 0);
4689 if (SYMBOLP (boolean_value
))
4690 value
= boolean_value
;
4692 else if (EQ (attr
, QCbox
) || EQ (attr
, QCinherit
))
4693 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4695 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4698 #endif /* HAVE_WINDOW_SYSTEM */
4701 /***********************************************************************
4703 ***********************************************************************/
4705 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4707 /* Make menus on frame F appear as specified by the `menu' face. */
4710 x_update_menu_appearance (f
)
4713 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4717 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4721 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4722 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4723 const char *myname
= SDATA (Vx_resource_name
);
4726 const char *popup_path
= "popup_menu";
4728 const char *popup_path
= "menu.popup";
4731 if (STRINGP (LFACE_FOREGROUND (lface
)))
4733 sprintf (line
, "%s.%s*foreground: %s",
4735 SDATA (LFACE_FOREGROUND (lface
)));
4736 XrmPutLineResource (&rdb
, line
);
4737 sprintf (line
, "%s.pane.menubar*foreground: %s",
4738 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4739 XrmPutLineResource (&rdb
, line
);
4743 if (STRINGP (LFACE_BACKGROUND (lface
)))
4745 sprintf (line
, "%s.%s*background: %s",
4747 SDATA (LFACE_BACKGROUND (lface
)));
4748 XrmPutLineResource (&rdb
, line
);
4749 sprintf (line
, "%s.pane.menubar*background: %s",
4750 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4751 XrmPutLineResource (&rdb
, line
);
4756 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4757 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4758 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4759 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4760 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4761 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4764 const char *suffix
= "List";
4767 #if defined HAVE_X_I18N
4769 const char *suffix
= "Set";
4771 const char *suffix
= "";
4775 #if defined HAVE_X_I18N
4776 extern char *xic_create_fontsetname
4777 P_ ((char *base_fontname
, Bool motif
));
4778 char *fontsetname
= xic_create_fontsetname (face
->font_name
, motif
);
4780 char *fontsetname
= face
->font_name
;
4782 sprintf (line
, "%s.pane.menubar*font%s: %s",
4783 myname
, suffix
, fontsetname
);
4784 XrmPutLineResource (&rdb
, line
);
4785 sprintf (line
, "%s.%s*font%s: %s",
4786 myname
, popup_path
, suffix
, fontsetname
);
4787 XrmPutLineResource (&rdb
, line
);
4789 if (fontsetname
!= face
->font_name
)
4790 xfree (fontsetname
);
4793 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4794 free_frame_menubar (f
);
4798 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4801 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4802 Sface_attribute_relative_p
,
4804 doc
: /* Check whether a face attribute value is relative.
4805 Specifically, this function returns t if the attribute ATTRIBUTE
4806 with the value VALUE is relative.
4808 A relative value is one that doesn't entirely override whatever is
4809 inherited from another face. For most possible attributes,
4810 the only relative value that users see is `unspecified'.
4811 However, for :height, floating point values are also relative. */)
4813 Lisp_Object attribute
, value
;
4815 if (EQ (value
, Qunspecified
) || (EQ (value
, Qignore_defface
)))
4817 else if (EQ (attribute
, QCheight
))
4818 return INTEGERP (value
) ? Qnil
: Qt
;
4823 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4825 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4826 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4827 the result will be absolute, otherwise it will be relative. */)
4828 (attribute
, value1
, value2
)
4829 Lisp_Object attribute
, value1
, value2
;
4831 if (EQ (value1
, Qunspecified
) || EQ (value1
, Qignore_defface
))
4833 else if (EQ (attribute
, QCheight
))
4834 return merge_face_heights (value1
, value2
, value1
);
4840 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4841 Sinternal_get_lisp_face_attribute
,
4843 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4844 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4845 face attribute name, signal an error.
4846 If the optional argument FRAME is given, report on face SYMBOL in that
4847 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
4848 frames). If FRAME is omitted or nil, use the selected frame. */)
4849 (symbol
, keyword
, frame
)
4850 Lisp_Object symbol
, keyword
, frame
;
4852 Lisp_Object lface
, value
= Qnil
;
4854 CHECK_SYMBOL (symbol
);
4855 CHECK_SYMBOL (keyword
);
4858 lface
= lface_from_face_name (NULL
, symbol
, 1);
4862 frame
= selected_frame
;
4863 CHECK_LIVE_FRAME (frame
);
4864 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4867 if (EQ (keyword
, QCfamily
))
4868 value
= LFACE_FAMILY (lface
);
4869 else if (EQ (keyword
, QCheight
))
4870 value
= LFACE_HEIGHT (lface
);
4871 else if (EQ (keyword
, QCweight
))
4872 value
= LFACE_WEIGHT (lface
);
4873 else if (EQ (keyword
, QCslant
))
4874 value
= LFACE_SLANT (lface
);
4875 else if (EQ (keyword
, QCunderline
))
4876 value
= LFACE_UNDERLINE (lface
);
4877 else if (EQ (keyword
, QCoverline
))
4878 value
= LFACE_OVERLINE (lface
);
4879 else if (EQ (keyword
, QCstrike_through
))
4880 value
= LFACE_STRIKE_THROUGH (lface
);
4881 else if (EQ (keyword
, QCbox
))
4882 value
= LFACE_BOX (lface
);
4883 else if (EQ (keyword
, QCinverse_video
)
4884 || EQ (keyword
, QCreverse_video
))
4885 value
= LFACE_INVERSE (lface
);
4886 else if (EQ (keyword
, QCforeground
))
4887 value
= LFACE_FOREGROUND (lface
);
4888 else if (EQ (keyword
, QCbackground
))
4889 value
= LFACE_BACKGROUND (lface
);
4890 else if (EQ (keyword
, QCstipple
))
4891 value
= LFACE_STIPPLE (lface
);
4892 else if (EQ (keyword
, QCwidth
))
4893 value
= LFACE_SWIDTH (lface
);
4894 else if (EQ (keyword
, QCinherit
))
4895 value
= LFACE_INHERIT (lface
);
4896 else if (EQ (keyword
, QCfont
))
4897 value
= LFACE_FONT (lface
);
4899 signal_error ("Invalid face attribute name", keyword
);
4901 if (IGNORE_DEFFACE_P (value
))
4902 return Qunspecified
;
4908 DEFUN ("internal-lisp-face-attribute-values",
4909 Finternal_lisp_face_attribute_values
,
4910 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4911 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4912 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4916 Lisp_Object result
= Qnil
;
4918 CHECK_SYMBOL (attr
);
4920 if (EQ (attr
, QCweight
)
4921 || EQ (attr
, QCslant
)
4922 || EQ (attr
, QCwidth
))
4924 /* Extract permissible symbols from tables. */
4925 struct table_entry
*table
;
4928 if (EQ (attr
, QCweight
))
4929 table
= weight_table
, dim
= DIM (weight_table
);
4930 else if (EQ (attr
, QCslant
))
4931 table
= slant_table
, dim
= DIM (slant_table
);
4933 table
= swidth_table
, dim
= DIM (swidth_table
);
4935 for (i
= 0; i
< dim
; ++i
)
4937 Lisp_Object symbol
= *table
[i
].symbol
;
4938 Lisp_Object tail
= result
;
4941 && !EQ (XCAR (tail
), symbol
))
4945 result
= Fcons (symbol
, result
);
4948 else if (EQ (attr
, QCunderline
))
4949 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4950 else if (EQ (attr
, QCoverline
))
4951 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4952 else if (EQ (attr
, QCstrike_through
))
4953 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4954 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4955 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4961 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4962 Sinternal_merge_in_global_face
, 2, 2, 0,
4963 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4964 Default face attributes override any local face attributes. */)
4966 Lisp_Object face
, frame
;
4969 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4971 CHECK_LIVE_FRAME (frame
);
4972 global_lface
= lface_from_face_name (NULL
, face
, 1);
4973 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4974 if (NILP (local_lface
))
4975 local_lface
= Finternal_make_lisp_face (face
, frame
);
4977 /* Make every specified global attribute override the local one.
4978 BEWARE!! This is only used from `face-set-after-frame-default' where
4979 the local frame is defined from default specs in `face-defface-spec'
4980 and those should be overridden by global settings. Hence the strange
4981 "global before local" priority. */
4982 lvec
= XVECTOR (local_lface
)->contents
;
4983 gvec
= XVECTOR (global_lface
)->contents
;
4984 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4985 if (! UNSPECIFIEDP (gvec
[i
]))
4987 if (IGNORE_DEFFACE_P (gvec
[i
]))
4988 lvec
[i
] = Qunspecified
;
4997 /* The following function is implemented for compatibility with 20.2.
4998 The function is used in x-resolve-fonts when it is asked to
4999 return fonts with the same size as the font of a face. This is
5000 done in fontset.el. */
5002 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
5003 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
5004 If the optional argument FRAME is given, report on face FACE in that frame.
5005 If FRAME is t, report on the defaults for face FACE (for new frames).
5006 The font default for a face is either nil, or a list
5007 of the form (bold), (italic) or (bold italic).
5008 If FRAME is omitted or nil, use the selected frame. */)
5010 Lisp_Object face
, frame
;
5014 Lisp_Object result
= Qnil
;
5015 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
5017 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
5018 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
5019 result
= Fcons (Qbold
, result
);
5021 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
5022 && !EQ (LFACE_SLANT (lface
), Qnormal
))
5023 result
= Fcons (Qitalic
, result
);
5029 struct frame
*f
= frame_or_selected_frame (frame
, 1);
5030 int face_id
= lookup_named_face (f
, face
, 0, 1);
5031 struct face
*face
= FACE_FROM_ID (f
, face_id
);
5032 return face
? build_string (face
->font_name
) : Qnil
;
5037 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
5038 all attributes are `equal'. Tries to be fast because this function
5039 is called quite often. */
5042 face_attr_equal_p (v1
, v2
)
5045 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
5046 and the other is specified. */
5047 if (XTYPE (v1
) != XTYPE (v2
))
5056 if (SBYTES (v1
) != SBYTES (v2
))
5059 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
5066 return !NILP (Fequal (v1
, v2
));
5071 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
5072 all attributes are `equal'. Tries to be fast because this function
5073 is called quite often. */
5076 lface_equal_p (v1
, v2
)
5077 Lisp_Object
*v1
, *v2
;
5081 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
5082 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
5088 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
5089 Sinternal_lisp_face_equal_p
, 2, 3, 0,
5090 doc
: /* True if FACE1 and FACE2 are equal.
5091 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
5092 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
5093 If FRAME is omitted or nil, use the selected frame. */)
5094 (face1
, face2
, frame
)
5095 Lisp_Object face1
, face2
, frame
;
5099 Lisp_Object lface1
, lface2
;
5104 /* Don't use check_x_frame here because this function is called
5105 before X frames exist. At that time, if FRAME is nil,
5106 selected_frame will be used which is the frame dumped with
5107 Emacs. That frame is not an X frame. */
5108 f
= frame_or_selected_frame (frame
, 2);
5110 lface1
= lface_from_face_name (f
, face1
, 1);
5111 lface2
= lface_from_face_name (f
, face2
, 1);
5112 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
5113 XVECTOR (lface2
)->contents
);
5114 return equal_p
? Qt
: Qnil
;
5118 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
5119 Sinternal_lisp_face_empty_p
, 1, 2, 0,
5120 doc
: /* True if FACE has no attribute specified.
5121 If the optional argument FRAME is given, report on face FACE in that frame.
5122 If FRAME is t, report on the defaults for face FACE (for new frames).
5123 If FRAME is omitted or nil, use the selected frame. */)
5125 Lisp_Object face
, frame
;
5132 frame
= selected_frame
;
5133 CHECK_LIVE_FRAME (frame
);
5137 lface
= lface_from_face_name (NULL
, face
, 1);
5139 lface
= lface_from_face_name (f
, face
, 1);
5141 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5142 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5145 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5149 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5151 doc
: /* Return an alist of frame-local faces defined on FRAME.
5152 For internal use only. */)
5156 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5157 return f
->face_alist
;
5161 /* Return a hash code for Lisp string STRING with case ignored. Used
5162 below in computing a hash value for a Lisp face. */
5164 static INLINE
unsigned
5165 hash_string_case_insensitive (string
)
5168 const unsigned char *s
;
5170 xassert (STRINGP (string
));
5171 for (s
= SDATA (string
); *s
; ++s
)
5172 hash
= (hash
<< 1) ^ tolower (*s
);
5177 /* Return a hash code for face attribute vector V. */
5179 static INLINE
unsigned
5183 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5184 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5185 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5186 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5187 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5188 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5189 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5193 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5194 considering charsets/registries). They do if they specify the same
5195 family, point size, weight, width, slant, and fontset. Both LFACE1
5196 and LFACE2 must be fully-specified. */
5199 lface_same_font_attributes_p (lface1
, lface2
)
5200 Lisp_Object
*lface1
, *lface2
;
5202 xassert (lface_fully_specified_p (lface1
)
5203 && lface_fully_specified_p (lface2
));
5204 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5205 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5206 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5207 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5208 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5209 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5210 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5211 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5212 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5213 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5214 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5215 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5220 /***********************************************************************
5222 ***********************************************************************/
5224 /* Allocate and return a new realized face for Lisp face attribute
5227 static struct face
*
5228 make_realized_face (attr
)
5231 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5232 bzero (face
, sizeof *face
);
5233 face
->ascii_face
= face
;
5234 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5239 /* Free realized face FACE, including its X resources. FACE may
5243 free_realized_face (f
, face
)
5249 #ifdef HAVE_WINDOW_SYSTEM
5250 if (FRAME_WINDOW_P (f
))
5252 /* Free fontset of FACE if it is ASCII face. */
5253 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5254 free_face_fontset (f
, face
);
5257 x_free_gc (f
, face
->gc
);
5261 free_face_colors (f
, face
);
5262 x_destroy_bitmap (f
, face
->stipple
);
5264 #endif /* HAVE_WINDOW_SYSTEM */
5271 /* Prepare face FACE for subsequent display on frame F. This
5272 allocated GCs if they haven't been allocated yet or have been freed
5273 by clearing the face cache. */
5276 prepare_face_for_display (f
, face
)
5280 #ifdef HAVE_WINDOW_SYSTEM
5281 xassert (FRAME_WINDOW_P (f
));
5286 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5288 xgcv
.foreground
= face
->foreground
;
5289 xgcv
.background
= face
->background
;
5290 #ifdef HAVE_X_WINDOWS
5291 xgcv
.graphics_exposures
= False
;
5293 /* The font of FACE may be null if we couldn't load it. */
5296 #ifdef HAVE_X_WINDOWS
5297 xgcv
.font
= face
->font
->fid
;
5300 xgcv
.font
= face
->font
;
5303 xgcv
.font
= face
->font
;
5309 #ifdef HAVE_X_WINDOWS
5312 xgcv
.fill_style
= FillOpaqueStippled
;
5313 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5314 mask
|= GCFillStyle
| GCStipple
;
5317 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5320 #endif /* HAVE_WINDOW_SYSTEM */
5324 /* Returns the `distance' between the colors X and Y. */
5327 color_distance (x
, y
)
5330 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5331 Quoting from that paper:
5333 This formula has results that are very close to L*u*v* (with the
5334 modified lightness curve) and, more importantly, it is a more even
5335 algorithm: it does not have a range of colours where it suddenly
5336 gives far from optimal results.
5338 See <http://www.compuphase.com/cmetric.htm> for more info. */
5340 long r
= (x
->red
- y
->red
) >> 8;
5341 long g
= (x
->green
- y
->green
) >> 8;
5342 long b
= (x
->blue
- y
->blue
) >> 8;
5343 long r_mean
= (x
->red
+ y
->red
) >> 9;
5346 (((512 + r_mean
) * r
* r
) >> 8)
5348 + (((767 - r_mean
) * b
* b
) >> 8);
5352 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5353 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5354 COLOR1 and COLOR2 may be either strings containing the color name,
5355 or lists of the form (RED GREEN BLUE).
5356 If FRAME is unspecified or nil, the current frame is used. */)
5357 (color1
, color2
, frame
)
5358 Lisp_Object color1
, color2
, frame
;
5361 XColor cdef1
, cdef2
;
5364 frame
= selected_frame
;
5365 CHECK_LIVE_FRAME (frame
);
5368 if (!(CONSP (color1
) && parse_rgb_list (color1
, &cdef1
))
5369 && !(STRINGP (color1
) && defined_color (f
, SDATA (color1
), &cdef1
, 0)))
5370 signal_error ("Invalid color", color1
);
5371 if (!(CONSP (color2
) && parse_rgb_list (color2
, &cdef2
))
5372 && !(STRINGP (color2
) && defined_color (f
, SDATA (color2
), &cdef2
, 0)))
5373 signal_error ("Invalid color", color2
);
5375 return make_number (color_distance (&cdef1
, &cdef2
));
5379 /***********************************************************************
5381 ***********************************************************************/
5383 /* Return a new face cache for frame F. */
5385 static struct face_cache
*
5389 struct face_cache
*c
;
5392 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5393 bzero (c
, sizeof *c
);
5394 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5395 c
->buckets
= (struct face
**) xmalloc (size
);
5396 bzero (c
->buckets
, size
);
5398 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5400 c
->menu_face_changed_p
= menu_face_changed_default
;
5405 /* Clear out all graphics contexts for all realized faces, except for
5406 the basic faces. This should be done from time to time just to avoid
5407 keeping too many graphics contexts that are no longer needed. */
5411 struct face_cache
*c
;
5413 if (c
&& FRAME_WINDOW_P (c
->f
))
5415 #ifdef HAVE_WINDOW_SYSTEM
5417 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5419 struct face
*face
= c
->faces_by_id
[i
];
5420 if (face
&& face
->gc
)
5422 x_free_gc (c
->f
, face
->gc
);
5426 #endif /* HAVE_WINDOW_SYSTEM */
5431 /* Free all realized faces in face cache C, including basic faces.
5432 C may be null. If faces are freed, make sure the frame's current
5433 matrix is marked invalid, so that a display caused by an expose
5434 event doesn't try to use faces we destroyed. */
5437 free_realized_faces (c
)
5438 struct face_cache
*c
;
5443 struct frame
*f
= c
->f
;
5445 /* We must block input here because we can't process X events
5446 safely while only some faces are freed, or when the frame's
5447 current matrix still references freed faces. */
5450 for (i
= 0; i
< c
->used
; ++i
)
5452 free_realized_face (f
, c
->faces_by_id
[i
]);
5453 c
->faces_by_id
[i
] = NULL
;
5457 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5458 bzero (c
->buckets
, size
);
5460 /* Must do a thorough redisplay the next time. Mark current
5461 matrices as invalid because they will reference faces freed
5462 above. This function is also called when a frame is
5463 destroyed. In this case, the root window of F is nil. */
5464 if (WINDOWP (f
->root_window
))
5466 clear_current_matrices (f
);
5467 ++windows_or_buffers_changed
;
5475 /* Free all faces realized for multibyte characters on frame F that
5479 free_realized_multibyte_face (f
, fontset
)
5483 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5487 /* We must block input here because we can't process X events safely
5488 while only some faces are freed, or when the frame's current
5489 matrix still references freed faces. */
5492 for (i
= 0; i
< cache
->used
; i
++)
5494 face
= cache
->faces_by_id
[i
];
5496 && face
!= face
->ascii_face
5497 && face
->fontset
== fontset
)
5499 uncache_face (cache
, face
);
5500 free_realized_face (f
, face
);
5504 /* Must do a thorough redisplay the next time. Mark current
5505 matrices as invalid because they will reference faces freed
5506 above. This function is also called when a frame is destroyed.
5507 In this case, the root window of F is nil. */
5508 if (WINDOWP (f
->root_window
))
5510 clear_current_matrices (f
);
5511 ++windows_or_buffers_changed
;
5518 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5519 This is done after attributes of a named face have been changed,
5520 because we can't tell which realized faces depend on that face. */
5523 free_all_realized_faces (frame
)
5529 FOR_EACH_FRAME (rest
, frame
)
5530 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5533 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5537 /* Free face cache C and faces in it, including their X resources. */
5541 struct face_cache
*c
;
5545 free_realized_faces (c
);
5547 xfree (c
->faces_by_id
);
5553 /* Cache realized face FACE in face cache C. HASH is the hash value
5554 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5555 collision list of the face hash table of C. This is done because
5556 otherwise lookup_face would find FACE for every character, even if
5557 faces with the same attributes but for specific characters exist. */
5560 cache_face (c
, face
, hash
)
5561 struct face_cache
*c
;
5565 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5569 if (face
->fontset
>= 0)
5571 struct face
*last
= c
->buckets
[i
];
5582 c
->buckets
[i
] = face
;
5583 face
->prev
= face
->next
= NULL
;
5589 face
->next
= c
->buckets
[i
];
5591 face
->next
->prev
= face
;
5592 c
->buckets
[i
] = face
;
5595 /* Find a free slot in C->faces_by_id and use the index of the free
5596 slot as FACE->id. */
5597 for (i
= 0; i
< c
->used
; ++i
)
5598 if (c
->faces_by_id
[i
] == NULL
)
5602 /* Maybe enlarge C->faces_by_id. */
5605 if (c
->used
== c
->size
)
5608 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5609 if (new_size
== c
->size
)
5610 abort (); /* Alternatives? ++kfs */
5611 sz
= new_size
* sizeof *c
->faces_by_id
;
5612 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5619 /* Check that FACE got a unique id. */
5624 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5625 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5631 #endif /* GLYPH_DEBUG */
5633 c
->faces_by_id
[i
] = face
;
5637 /* Remove face FACE from cache C. */
5640 uncache_face (c
, face
)
5641 struct face_cache
*c
;
5644 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5647 face
->prev
->next
= face
->next
;
5649 c
->buckets
[i
] = face
->next
;
5652 face
->next
->prev
= face
->prev
;
5654 c
->faces_by_id
[face
->id
] = NULL
;
5655 if (face
->id
== c
->used
)
5660 /* Look up a realized face with face attributes ATTR in the face cache
5661 of frame F. The face will be used to display character C. Value
5662 is the ID of the face found. If no suitable face is found, realize
5663 a new one. In that case, if C is a multibyte character, BASE_FACE
5664 is a face that has the same attributes. */
5667 lookup_face (f
, attr
, c
, base_face
)
5671 struct face
*base_face
;
5673 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5678 xassert (cache
!= NULL
);
5679 check_lface_attrs (attr
);
5681 /* Look up ATTR in the face cache. */
5682 hash
= lface_hash (attr
);
5683 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5685 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5686 if (face
->hash
== hash
5687 && (!FRAME_WINDOW_P (f
)
5688 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5689 && lface_equal_p (face
->lface
, attr
))
5692 /* If not found, realize a new face. */
5694 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5697 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5699 /* When this function is called from face_for_char (in this case, C is
5700 a multibyte character), a fontset of a face returned by
5701 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5702 C) is not sutisfied. The fontset is set for this face by
5703 face_for_char later. */
5705 if (FRAME_WINDOW_P (f
))
5706 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5708 #endif /* GLYPH_DEBUG */
5714 /* Return the face id of the realized face for named face SYMBOL on
5715 frame F suitable for displaying character C. Value is -1 if the
5716 face couldn't be determined, which might happen if the default face
5717 isn't realized and cannot be realized. */
5720 lookup_named_face (f
, symbol
, c
, signal_p
)
5726 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5727 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5728 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5730 if (default_face
== NULL
)
5732 if (!realize_basic_faces (f
))
5734 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5735 if (default_face
== NULL
)
5736 abort (); /* realize_basic_faces must have set it up */
5739 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
))
5742 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5743 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5745 return lookup_face (f
, attrs
, c
, NULL
);
5749 /* Return the ID of the realized ASCII face of Lisp face with ID
5750 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5753 ascii_face_of_lisp_face (f
, lface_id
)
5759 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5761 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5762 face_id
= lookup_named_face (f
, face_name
, 0, 1);
5771 /* Return a face for charset ASCII that is like the face with id
5772 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5773 STEPS < 0 means larger. Value is the id of the face. */
5776 smaller_face (f
, face_id
, steps
)
5780 #ifdef HAVE_WINDOW_SYSTEM
5782 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5783 int pt
, last_pt
, last_height
;
5786 struct face
*new_face
;
5788 /* If not called for an X frame, just return the original face. */
5789 if (FRAME_TERMCAP_P (f
))
5792 /* Try in increments of 1/2 pt. */
5793 delta
= steps
< 0 ? 5 : -5;
5794 steps
= abs (steps
);
5796 face
= FACE_FROM_ID (f
, face_id
);
5797 bcopy (face
->lface
, attrs
, sizeof attrs
);
5798 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5799 new_face_id
= face_id
;
5800 last_height
= FONT_HEIGHT (face
->font
);
5804 /* Give up if we cannot find a font within 10pt. */
5805 && abs (last_pt
- pt
) < 100)
5807 /* Look up a face for a slightly smaller/larger font. */
5809 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5810 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5811 new_face
= FACE_FROM_ID (f
, new_face_id
);
5813 /* If height changes, count that as one step. */
5814 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5815 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5818 last_height
= FONT_HEIGHT (new_face
->font
);
5825 #else /* not HAVE_WINDOW_SYSTEM */
5829 #endif /* not HAVE_WINDOW_SYSTEM */
5833 /* Return a face for charset ASCII that is like the face with id
5834 FACE_ID on frame F, but has height HEIGHT. */
5837 face_with_height (f
, face_id
, height
)
5842 #ifdef HAVE_WINDOW_SYSTEM
5844 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5846 if (FRAME_TERMCAP_P (f
)
5850 face
= FACE_FROM_ID (f
, face_id
);
5851 bcopy (face
->lface
, attrs
, sizeof attrs
);
5852 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5853 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5854 #endif /* HAVE_WINDOW_SYSTEM */
5860 /* Return the face id of the realized face for named face SYMBOL on
5861 frame F suitable for displaying character C, and use attributes of
5862 the face FACE_ID for attributes that aren't completely specified by
5863 SYMBOL. This is like lookup_named_face, except that the default
5864 attributes come from FACE_ID, not from the default face. FACE_ID
5865 is assumed to be already realized. */
5868 lookup_derived_face (f
, symbol
, c
, face_id
, signal_p
)
5875 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5876 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5877 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5882 get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
);
5883 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5884 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5885 return lookup_face (f
, attrs
, c
, default_face
);
5888 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5889 Sface_attributes_as_vector
, 1, 1, 0,
5890 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5895 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5897 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5904 /***********************************************************************
5905 Face capability testing
5906 ***********************************************************************/
5909 /* If the distance (as returned by color_distance) between two colors is
5910 less than this, then they are considered the same, for determining
5911 whether a color is supported or not. The range of values is 0-65535. */
5913 #define TTY_SAME_COLOR_THRESHOLD 10000
5915 #ifdef HAVE_WINDOW_SYSTEM
5917 /* Return non-zero if all the face attributes in ATTRS are supported
5918 on the window-system frame F.
5920 The definition of `supported' is somewhat heuristic, but basically means
5921 that a face containing all the attributes in ATTRS, when merged with the
5922 default face for display, can be represented in a way that's
5924 \(1) different in appearance than the default face, and
5925 \(2) `close in spirit' to what the attributes specify, if not exact. */
5928 x_supports_face_attributes_p (f
, attrs
, def_face
)
5931 struct face
*def_face
;
5933 Lisp_Object
*def_attrs
= def_face
->lface
;
5935 /* Check that other specified attributes are different that the default
5937 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5938 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5939 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5940 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5941 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5942 def_attrs
[LFACE_INVERSE_INDEX
]))
5943 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5944 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5945 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5946 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5947 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5948 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5949 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5950 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5951 def_attrs
[LFACE_STIPPLE_INDEX
]))
5952 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5953 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5954 def_attrs
[LFACE_OVERLINE_INDEX
]))
5955 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5956 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5957 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5958 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5959 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5960 def_attrs
[LFACE_BOX_INDEX
])))
5963 /* Check font-related attributes, as those are the most commonly
5964 "unsupported" on a window-system (because of missing fonts). */
5965 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5966 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5967 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5968 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5969 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5970 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
5973 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5975 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5977 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5979 face
= FACE_FROM_ID (f
, lookup_face (f
, merged_attrs
, 0, 0));
5982 error ("Cannot make face");
5984 /* If the font is the same, then not supported. */
5985 if (face
->font
== def_face
->font
)
5989 /* Everything checks out, this face is supported. */
5993 #endif /* HAVE_WINDOW_SYSTEM */
5995 /* Return non-zero if all the face attributes in ATTRS are supported
5998 The definition of `supported' is somewhat heuristic, but basically means
5999 that a face containing all the attributes in ATTRS, when merged
6000 with the default face for display, can be represented in a way that's
6002 \(1) different in appearance than the default face, and
6003 \(2) `close in spirit' to what the attributes specify, if not exact.
6005 Point (2) implies that a `:weight black' attribute will be satisfied
6006 by any terminal that can display bold, and a `:foreground "yellow"' as
6007 long as the terminal can display a yellowish color, but `:slant italic'
6008 will _not_ be satisfied by the tty display code's automatic
6009 substitution of a `dim' face for italic. */
6012 tty_supports_face_attributes_p (f
, attrs
, def_face
)
6015 struct face
*def_face
;
6018 Lisp_Object val
, fg
, bg
;
6019 XColor fg_tty_color
, fg_std_color
;
6020 XColor bg_tty_color
, bg_std_color
;
6021 unsigned test_caps
= 0;
6022 Lisp_Object
*def_attrs
= def_face
->lface
;
6025 /* First check some easy-to-check stuff; ttys support none of the
6026 following attributes, so we can just return false if any are requested
6027 (even if `nominal' values are specified, we should still return false,
6028 as that will be the same value that the default face uses). We
6029 consider :slant unsupportable on ttys, even though the face code
6030 actually `fakes' them using a dim attribute if possible. This is
6031 because the faked result is too different from what the face
6033 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
6034 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
6035 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
6036 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
6037 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
6038 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
6039 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
6040 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
6044 /* Test for terminal `capabilities' (non-color character attributes). */
6046 /* font weight (bold/dim) */
6047 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6050 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
6052 if (weight
> XLFD_WEIGHT_MEDIUM
)
6054 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
6055 return 0; /* same as default */
6056 test_caps
= TTY_CAP_BOLD
;
6058 else if (weight
< XLFD_WEIGHT_MEDIUM
)
6060 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
6061 return 0; /* same as default */
6062 test_caps
= TTY_CAP_DIM
;
6064 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
6065 return 0; /* same as default */
6069 val
= attrs
[LFACE_UNDERLINE_INDEX
];
6070 if (!UNSPECIFIEDP (val
))
6073 return 0; /* ttys can't use colored underlines */
6074 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6075 return 0; /* same as default */
6077 test_caps
|= TTY_CAP_UNDERLINE
;
6081 val
= attrs
[LFACE_INVERSE_INDEX
];
6082 if (!UNSPECIFIEDP (val
))
6084 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6085 return 0; /* same as default */
6087 test_caps
|= TTY_CAP_INVERSE
;
6091 /* Color testing. */
6093 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
6094 we use them when calling `tty_capable_p' below, even if the face
6095 specifies no colors. */
6096 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6097 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6099 /* Check if foreground color is close enough. */
6100 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
6103 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6105 if (face_attr_equal_p (fg
, def_fg
))
6106 return 0; /* same as default */
6107 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
6108 return 0; /* not a valid color */
6109 else if (color_distance (&fg_tty_color
, &fg_std_color
)
6110 > TTY_SAME_COLOR_THRESHOLD
)
6111 return 0; /* displayed color is too different */
6113 /* Make sure the color is really different than the default. */
6115 XColor def_fg_color
;
6116 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
6117 && (color_distance (&fg_tty_color
, &def_fg_color
)
6118 <= TTY_SAME_COLOR_THRESHOLD
))
6123 /* Check if background color is close enough. */
6124 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
6127 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6129 if (face_attr_equal_p (bg
, def_bg
))
6130 return 0; /* same as default */
6131 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6132 return 0; /* not a valid color */
6133 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6134 > TTY_SAME_COLOR_THRESHOLD
)
6135 return 0; /* displayed color is too different */
6137 /* Make sure the color is really different than the default. */
6139 XColor def_bg_color
;
6140 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6141 && (color_distance (&bg_tty_color
, &def_bg_color
)
6142 <= TTY_SAME_COLOR_THRESHOLD
))
6147 /* If both foreground and background are requested, see if the
6148 distance between them is OK. We just check to see if the distance
6149 between the tty's foreground and background is close enough to the
6150 distance between the standard foreground and background. */
6151 if (STRINGP (fg
) && STRINGP (bg
))
6154 = (color_distance (&fg_std_color
, &bg_std_color
)
6155 - color_distance (&fg_tty_color
, &bg_tty_color
));
6156 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6157 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6162 /* See if the capabilities we selected above are supported, with the
6164 if (test_caps
!= 0 &&
6165 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6169 /* Hmmm, everything checks out, this terminal must support this face. */
6174 DEFUN ("display-supports-face-attributes-p",
6175 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6177 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6178 The optional argument DISPLAY can be a display name, a frame, or
6179 nil (meaning the selected frame's display).
6181 The definition of `supported' is somewhat heuristic, but basically means
6182 that a face containing all the attributes in ATTRIBUTES, when merged
6183 with the default face for display, can be represented in a way that's
6185 \(1) different in appearance than the default face, and
6186 \(2) `close in spirit' to what the attributes specify, if not exact.
6188 Point (2) implies that a `:weight black' attribute will be satisfied by
6189 any display that can display bold, and a `:foreground \"yellow\"' as long
6190 as it can display a yellowish color, but `:slant italic' will _not_ be
6191 satisfied by the tty display code's automatic substitution of a `dim'
6192 face for italic. */)
6193 (attributes
, display
)
6194 Lisp_Object attributes
, display
;
6196 int supports
= 0, i
;
6199 struct face
*def_face
;
6200 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6202 if (noninteractive
|| !initialized
)
6203 /* We may not be able to access low-level face information in batch
6204 mode, or before being dumped, and this function is not going to
6205 be very useful in those cases anyway, so just give up. */
6209 frame
= selected_frame
;
6210 else if (FRAMEP (display
))
6214 /* Find any frame on DISPLAY. */
6215 Lisp_Object fl_tail
;
6218 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6220 frame
= XCAR (fl_tail
);
6221 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6222 XFRAME (frame
)->param_alist
)),
6228 CHECK_LIVE_FRAME (frame
);
6231 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6232 attrs
[i
] = Qunspecified
;
6233 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6235 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6236 if (def_face
== NULL
)
6238 if (! realize_basic_faces (f
))
6239 error ("Cannot realize default face");
6240 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6241 if (def_face
== NULL
)
6242 abort (); /* realize_basic_faces must have set it up */
6245 /* Dispatch to the appropriate handler. */
6246 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6247 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6248 #ifdef HAVE_WINDOW_SYSTEM
6250 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6253 return supports
? Qt
: Qnil
;
6257 /***********************************************************************
6259 ***********************************************************************/
6261 DEFUN ("internal-set-font-selection-order",
6262 Finternal_set_font_selection_order
,
6263 Sinternal_set_font_selection_order
, 1, 1, 0,
6264 doc
: /* Set font selection order for face font selection to ORDER.
6265 ORDER must be a list of length 4 containing the symbols `:width',
6266 `:height', `:weight', and `:slant'. Face attributes appearing
6267 first in ORDER are matched first, e.g. if `:height' appears before
6268 `:weight' in ORDER, font selection first tries to find a font with
6269 a suitable height, and then tries to match the font weight.
6276 int indices
[DIM (font_sort_order
)];
6279 bzero (indices
, sizeof indices
);
6283 CONSP (list
) && i
< DIM (indices
);
6284 list
= XCDR (list
), ++i
)
6286 Lisp_Object attr
= XCAR (list
);
6289 if (EQ (attr
, QCwidth
))
6291 else if (EQ (attr
, QCheight
))
6292 xlfd
= XLFD_POINT_SIZE
;
6293 else if (EQ (attr
, QCweight
))
6295 else if (EQ (attr
, QCslant
))
6300 if (indices
[i
] != 0)
6305 if (!NILP (list
) || i
!= DIM (indices
))
6306 signal_error ("Invalid font sort order", order
);
6307 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6308 if (indices
[i
] == 0)
6309 signal_error ("Invalid font sort order", order
);
6311 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6313 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6314 free_all_realized_faces (Qnil
);
6321 DEFUN ("internal-set-alternative-font-family-alist",
6322 Finternal_set_alternative_font_family_alist
,
6323 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6324 doc
: /* Define alternative font families to try in face font selection.
6325 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6326 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6327 be found. Value is ALIST. */)
6332 Vface_alternative_font_family_alist
= alist
;
6333 free_all_realized_faces (Qnil
);
6338 DEFUN ("internal-set-alternative-font-registry-alist",
6339 Finternal_set_alternative_font_registry_alist
,
6340 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6341 doc
: /* Define alternative font registries to try in face font selection.
6342 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6343 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6344 be found. Value is ALIST. */)
6349 Vface_alternative_font_registry_alist
= alist
;
6350 free_all_realized_faces (Qnil
);
6355 #ifdef HAVE_WINDOW_SYSTEM
6357 /* Value is non-zero if FONT is the name of a scalable font. The
6358 X11R6 XLFD spec says that point size, pixel size, and average width
6359 are zero for scalable fonts. Intlfonts contain at least one
6360 scalable font ("*-muleindian-1") for which this isn't true, so we
6361 just test average width. */
6364 font_scalable_p (font
)
6365 struct font_name
*font
;
6367 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6368 return (*s
== '0' && *(s
+ 1) == '\0')
6370 /* Windows implementation of XLFD is slightly broken for backward
6371 compatibility with previous broken versions, so test for
6372 wildcards as well as 0. */
6379 /* Ignore the difference of font point size less than this value. */
6381 #define FONT_POINT_SIZE_QUANTUM 5
6383 /* Value is non-zero if FONT1 is a better match for font attributes
6384 VALUES than FONT2. VALUES is an array of face attribute values in
6385 font sort order. COMPARE_PT_P zero means don't compare point
6386 sizes. AVGWIDTH, if not zero, is a specified font average width
6390 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6392 struct font_name
*font1
, *font2
;
6393 int compare_pt_p
, avgwidth
;
6397 /* Any font is better than no font. */
6403 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6405 int xlfd_idx
= font_sort_order
[i
];
6407 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6411 if (xlfd_idx
== XLFD_POINT_SIZE
)
6413 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6414 / font1
->rescale_ratio
));
6415 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6416 / font2
->rescale_ratio
));
6417 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6422 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6423 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6426 if (delta1
> delta2
)
6428 else if (delta1
< delta2
)
6432 /* The difference may be equal because, e.g., the face
6433 specifies `italic' but we have only `regular' and
6434 `oblique'. Prefer `oblique' in this case. */
6435 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6436 && font1
->numeric
[xlfd_idx
] > values
[i
]
6437 && font2
->numeric
[xlfd_idx
] < values
[i
])
6445 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6446 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6447 if (delta1
> delta2
)
6449 else if (delta1
< delta2
)
6455 /* We prefer a real scalable font; i.e. not what autoscaled. */
6456 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6457 && font1
->numeric
[XLFD_RESY
] > 0);
6458 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6459 && font2
->numeric
[XLFD_RESY
] > 0);
6461 if (auto_scaled_1
!= auto_scaled_2
)
6462 return auto_scaled_2
;
6465 return font1
->registry_priority
< font2
->registry_priority
;
6469 /* Value is non-zero if FONT is an exact match for face attributes in
6470 SPECIFIED. SPECIFIED is an array of face attribute values in font
6471 sort order. AVGWIDTH, if non-zero, is an average width to compare
6475 exact_face_match_p (specified
, font
, avgwidth
)
6477 struct font_name
*font
;
6482 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6483 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6486 return (i
== DIM (font_sort_order
)
6488 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6492 /* Value is the name of a scaled font, generated from scalable font
6493 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6494 Value is allocated from heap. */
6497 build_scalable_font_name (f
, font
, specified_pt
)
6499 struct font_name
*font
;
6502 char pixel_size
[20];
6504 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6507 /* If scalable font is for a specific resolution, compute
6508 the point size we must specify from the resolution of
6509 the display and the specified resolution of the font. */
6510 if (font
->numeric
[XLFD_RESY
] != 0)
6512 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6513 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6518 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6520 /* We may need a font of the different size. */
6521 pixel_value
*= font
->rescale_ratio
;
6523 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6524 font of the specified PIXEL_SIZE. */
6526 { /* Set point size of the font. */
6527 char point_size
[20];
6528 sprintf (point_size
, "%d", (int) pt
);
6529 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6530 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6534 /* Set pixel size. */
6535 sprintf (pixel_size
, "%d", pixel_value
);
6536 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6537 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6539 /* If font doesn't specify its resolution, use the
6540 resolution of the display. */
6541 if (font
->numeric
[XLFD_RESY
] == 0)
6544 sprintf (buffer
, "%d", (int) resy
);
6545 font
->fields
[XLFD_RESY
] = buffer
;
6546 font
->numeric
[XLFD_RESY
] = resy
;
6549 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6552 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6553 sprintf (buffer
, "%d", resx
);
6554 font
->fields
[XLFD_RESX
] = buffer
;
6555 font
->numeric
[XLFD_RESX
] = resx
;
6558 return build_font_name (font
);
6562 /* Value is non-zero if we are allowed to use scalable font FONT. We
6563 can't run a Lisp function here since this function may be called
6564 with input blocked. */
6567 may_use_scalable_font_p (font
)
6570 if (EQ (Vscalable_fonts_allowed
, Qt
))
6572 else if (CONSP (Vscalable_fonts_allowed
))
6574 Lisp_Object tail
, regexp
;
6576 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6578 regexp
= XCAR (tail
);
6579 if (STRINGP (regexp
)
6580 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6590 /* Return the name of the best matching font for face attributes ATTRS
6591 in the array of font_name structures FONTS which contains NFONTS
6592 elements. WIDTH_RATIO is a factor with which to multiply average
6593 widths if ATTRS specifies such a width.
6595 Value is a font name which is allocated from the heap. FONTS is
6596 freed by this function.
6598 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6599 indicate whether the resulting font should be drawn using overstrike
6600 to simulate bold-face. */
6603 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6606 struct font_name
*fonts
;
6609 int *needs_overstrike
;
6612 struct font_name
*best
;
6615 int exact_p
, avgwidth
;
6620 /* Make specified font attributes available in `specified',
6621 indexed by sort order. */
6622 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6624 int xlfd_idx
= font_sort_order
[i
];
6626 if (xlfd_idx
== XLFD_SWIDTH
)
6627 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6628 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6629 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6630 else if (xlfd_idx
== XLFD_WEIGHT
)
6631 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6632 else if (xlfd_idx
== XLFD_SLANT
)
6633 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6638 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6640 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6644 if (needs_overstrike
)
6645 *needs_overstrike
= 0;
6649 /* Find the best match among the non-scalable fonts. */
6650 for (i
= 0; i
< nfonts
; ++i
)
6651 if (!font_scalable_p (fonts
+ i
)
6652 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6656 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6661 /* Unless we found an exact match among non-scalable fonts, see if
6662 we can find a better match among scalable fonts. */
6665 /* A scalable font is better if
6667 1. its weight, slant, swidth attributes are better, or.
6669 2. the best non-scalable font doesn't have the required
6670 point size, and the scalable fonts weight, slant, swidth
6673 int non_scalable_has_exact_height_p
;
6675 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6676 non_scalable_has_exact_height_p
= 1;
6678 non_scalable_has_exact_height_p
= 0;
6680 for (i
= 0; i
< nfonts
; ++i
)
6681 if (font_scalable_p (fonts
+ i
))
6683 if (better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6684 || (!non_scalable_has_exact_height_p
6685 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6687 non_scalable_has_exact_height_p
= 1;
6693 /* We should have found SOME font. */
6697 if (! exact_p
&& needs_overstrike
)
6699 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6700 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6702 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6704 /* We want a bold font, but didn't get one; try to use
6705 overstriking instead to simulate bold-face. However,
6706 don't overstrike an already-bold font unless the
6707 desired weight grossly exceeds the available weight. */
6708 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6709 *needs_overstrike
= (want_weight
- got_weight
) > 2;
6711 *needs_overstrike
= 1;
6715 if (font_scalable_p (best
))
6716 font_name
= build_scalable_font_name (f
, best
, pt
);
6718 font_name
= build_font_name (best
);
6720 /* Free font_name structures. */
6721 free_font_names (fonts
, nfonts
);
6727 /* Get a list of matching fonts on frame F, considering FAMILY
6728 and alternative font families from Vface_alternative_font_registry_alist.
6730 FAMILY is the font family whose alternatives are considered.
6732 REGISTRY, if a string, specifies a font registry and encoding to
6733 match. A value of nil means include fonts of any registry and
6736 Return in *FONTS a pointer to a vector of font_name structures for
6737 the fonts matched. Value is the number of fonts found. */
6740 try_alternative_families (f
, family
, registry
, fonts
)
6742 Lisp_Object family
, registry
;
6743 struct font_name
**fonts
;
6748 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6751 /* Try alternative font families. */
6752 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6755 for (alter
= XCDR (alter
);
6756 CONSP (alter
) && nfonts
== 0;
6757 alter
= XCDR (alter
))
6759 if (STRINGP (XCAR (alter
)))
6760 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6764 /* Try all scalable fonts before giving up. */
6765 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6767 int count
= SPECPDL_INDEX ();
6768 specbind (Qscalable_fonts_allowed
, Qt
);
6769 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6770 unbind_to (count
, Qnil
);
6777 /* Get a list of matching fonts on frame F.
6779 FAMILY, if a string, specifies a font family derived from the fontset.
6780 It is only used if the face does not specify any family in ATTRS or
6781 if we cannot find any font of the face's family.
6783 REGISTRY, if a string, specifies a font registry and encoding to
6784 match. A value of nil means include fonts of any registry and
6787 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6788 Otherwise, prefer FAMILY.
6790 Return in *FONTS a pointer to a vector of font_name structures for
6791 the fonts matched. Value is the number of fonts found. */
6794 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6797 Lisp_Object family
, registry
;
6798 struct font_name
**fonts
;
6799 int prefer_face_family
;
6802 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6803 Lisp_Object try_family
;
6805 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6807 if (STRINGP (try_family
))
6808 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6811 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
))
6813 if (xstricmp (SDATA (registry
), "mac-roman") == 0)
6814 /* When realizing the default face and a font spec does not
6815 matched exactly, Emacs looks for ones with the same registry
6816 as the default font. On the Mac, this is mac-roman, which
6817 does not work if the family is -etl-fixed, e.g. The
6818 following widens the choices and fixes that problem. */
6819 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6820 else if (SBYTES (try_family
) > 0
6821 && SREF (try_family
, SBYTES (try_family
) - 1) != '*')
6822 /* Some Central European/Cyrillic font family names have the
6823 Roman counterpart name as their prefix. */
6824 nfonts
= try_alternative_families (f
, concat2 (try_family
,
6825 build_string ("*")),
6830 if (EQ (try_family
, family
))
6831 family
= face_family
;
6833 if (nfonts
== 0 && STRINGP (family
))
6834 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6836 /* Try font family of the default face or "fixed". */
6839 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6841 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6843 family
= build_string ("fixed");
6844 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6847 /* Try any family with the given registry. */
6849 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6855 /* Return the fontset id of the base fontset name or alias name given
6856 by the fontset attribute of ATTRS. Value is -1 if the fontset
6857 attribute of ATTRS doesn't name a fontset. */
6860 face_fontset (attrs
)
6865 name
= attrs
[LFACE_FONT_INDEX
];
6866 if (!STRINGP (name
))
6868 return fs_query_fontset (name
, 0);
6872 /* Choose a name of font to use on frame F to display character C with
6873 Lisp face attributes specified by ATTRS. The font name is
6874 determined by the font-related attributes in ATTRS and the name
6875 pattern for C in FONTSET. Value is the font name which is
6876 allocated from the heap and must be freed by the caller, or NULL if
6877 we can get no information about the font name of C. It is assured
6878 that we always get some information for a single byte
6881 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6882 indicate whether the resulting font should be drawn using overstrike
6883 to simulate bold-face. */
6886 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6890 int *needs_overstrike
;
6892 Lisp_Object pattern
;
6893 char *font_name
= NULL
;
6894 struct font_name
*fonts
;
6895 int nfonts
, width_ratio
;
6897 if (needs_overstrike
)
6898 *needs_overstrike
= 0;
6900 /* Get (foundry and) family name and registry (and encoding) name of
6902 pattern
= fontset_font_pattern (f
, fontset
, c
);
6905 xassert (!SINGLE_BYTE_CHAR_P (c
));
6909 /* If what we got is a name pattern, return it. */
6910 if (STRINGP (pattern
))
6911 return xstrdup (SDATA (pattern
));
6913 /* Get a list of fonts matching that pattern and choose the
6914 best match for the specified face attributes from it. */
6915 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6916 (SINGLE_BYTE_CHAR_P (c
)
6917 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6918 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6920 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6921 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6926 #endif /* HAVE_WINDOW_SYSTEM */
6930 /***********************************************************************
6932 ***********************************************************************/
6934 /* Realize basic faces on frame F. Value is zero if frame parameters
6935 of F don't contain enough information needed to realize the default
6939 realize_basic_faces (f
)
6943 int count
= SPECPDL_INDEX ();
6945 /* Block input here so that we won't be surprised by an X expose
6946 event, for instance, without having the faces set up. */
6948 specbind (Qscalable_fonts_allowed
, Qt
);
6950 if (realize_default_face (f
))
6952 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6953 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6954 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6955 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6956 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6957 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6958 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6959 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6960 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6961 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6962 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
6964 /* Reflect changes in the `menu' face in menu bars. */
6965 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6967 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6968 #ifdef USE_X_TOOLKIT
6969 if (FRAME_WINDOW_P (f
))
6970 x_update_menu_appearance (f
);
6977 unbind_to (count
, Qnil
);
6983 /* Realize the default face on frame F. If the face is not fully
6984 specified, make it fully-specified. Attributes of the default face
6985 that are not explicitly specified are taken from frame parameters. */
6988 realize_default_face (f
)
6991 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6993 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6994 Lisp_Object frame_font
;
6997 /* If the `default' face is not yet known, create it. */
6998 lface
= lface_from_face_name (f
, Qdefault
, 0);
7002 XSETFRAME (frame
, f
);
7003 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
7007 #ifdef HAVE_WINDOW_SYSTEM
7008 if (FRAME_WINDOW_P (f
))
7010 /* Set frame_font to the value of the `font' frame parameter. */
7011 frame_font
= Fassq (Qfont
, f
->param_alist
);
7012 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
7013 frame_font
= XCDR (frame_font
);
7014 set_lface_from_font_name (f
, lface
, frame_font
,
7015 f
->default_face_done_p
, 1);
7016 f
->default_face_done_p
= 1;
7018 #endif /* HAVE_WINDOW_SYSTEM */
7020 if (!FRAME_WINDOW_P (f
))
7022 LFACE_FAMILY (lface
) = build_string ("default");
7023 LFACE_SWIDTH (lface
) = Qnormal
;
7024 LFACE_HEIGHT (lface
) = make_number (1);
7025 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
7026 LFACE_WEIGHT (lface
) = Qnormal
;
7027 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
7028 LFACE_SLANT (lface
) = Qnormal
;
7029 LFACE_AVGWIDTH (lface
) = Qunspecified
;
7032 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
7033 LFACE_UNDERLINE (lface
) = Qnil
;
7035 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
7036 LFACE_OVERLINE (lface
) = Qnil
;
7038 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
7039 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
7041 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
7042 LFACE_BOX (lface
) = Qnil
;
7044 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
7045 LFACE_INVERSE (lface
) = Qnil
;
7047 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
7049 /* This function is called so early that colors are not yet
7050 set in the frame parameter list. */
7051 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
7053 if (CONSP (color
) && STRINGP (XCDR (color
)))
7054 LFACE_FOREGROUND (lface
) = XCDR (color
);
7055 else if (FRAME_WINDOW_P (f
))
7057 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7058 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
7063 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
7065 /* This function is called so early that colors are not yet
7066 set in the frame parameter list. */
7067 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
7068 if (CONSP (color
) && STRINGP (XCDR (color
)))
7069 LFACE_BACKGROUND (lface
) = XCDR (color
);
7070 else if (FRAME_WINDOW_P (f
))
7072 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7073 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
7078 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
7079 LFACE_STIPPLE (lface
) = Qnil
;
7081 /* Realize the face; it must be fully-specified now. */
7082 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
7083 check_lface (lface
);
7084 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
7085 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
7087 #ifdef HAVE_WINDOW_SYSTEM
7088 #ifdef HAVE_X_WINDOWS
7089 if (FRAME_X_P (f
) && face
->font
!= FRAME_FONT (f
))
7091 /* This can happen when making a frame on a display that does
7092 not support the default font. */
7096 /* Otherwise, the font specified for the frame was not
7097 acceptable as a font for the default face (perhaps because
7098 auto-scaled fonts are rejected), so we must adjust the frame
7100 x_set_font (f
, build_string (face
->font_name
), Qnil
);
7102 #endif /* HAVE_X_WINDOWS */
7103 #endif /* HAVE_WINDOW_SYSTEM */
7108 /* Realize basic faces other than the default face in face cache C.
7109 SYMBOL is the face name, ID is the face id the realized face must
7110 have. The default face must have been realized already. */
7113 realize_named_face (f
, symbol
, id
)
7118 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
7119 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
7120 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7121 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
7122 struct face
*new_face
;
7124 /* The default face must exist and be fully specified. */
7125 get_lface_attributes (f
, Qdefault
, attrs
, 1);
7126 check_lface_attrs (attrs
);
7127 xassert (lface_fully_specified_p (attrs
));
7129 /* If SYMBOL isn't know as a face, create it. */
7133 XSETFRAME (frame
, f
);
7134 lface
= Finternal_make_lisp_face (symbol
, frame
);
7137 /* Merge SYMBOL's face with the default face. */
7138 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
7139 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
7141 /* Realize the face. */
7142 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
7146 /* Realize the fully-specified face with attributes ATTRS in face
7147 cache CACHE for character C. If C is a multibyte character,
7148 BASE_FACE is a face that has the same attributes. Otherwise,
7149 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
7150 ID of face to remove before caching the new face. Value is a
7151 pointer to the newly created realized face. */
7153 static struct face
*
7154 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
7155 struct face_cache
*cache
;
7158 struct face
*base_face
;
7163 /* LFACE must be fully specified. */
7164 xassert (cache
!= NULL
);
7165 check_lface_attrs (attrs
);
7167 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7169 /* Remove the former face. */
7170 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7171 uncache_face (cache
, former_face
);
7172 free_realized_face (cache
->f
, former_face
);
7175 if (FRAME_WINDOW_P (cache
->f
))
7176 face
= realize_x_face (cache
, attrs
, c
, base_face
);
7177 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7178 face
= realize_tty_face (cache
, attrs
, c
);
7179 else if (FRAME_INITIAL_P (cache
->f
))
7181 /* Create a dummy face. */
7182 face
= make_realized_face (attrs
);
7187 /* Insert the new face. */
7188 cache_face (cache
, face
, lface_hash (attrs
));
7189 #ifdef HAVE_WINDOW_SYSTEM
7190 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
7191 load_face_font (cache
->f
, face
, c
);
7192 #endif /* HAVE_WINDOW_SYSTEM */
7197 /* Realize the fully-specified face with attributes ATTRS in face
7198 cache CACHE for character C. Do it for X frame CACHE->f. If C is
7199 a multibyte character, BASE_FACE is a face that has the same
7200 attributes. Otherwise, BASE_FACE is ignored. If the new face
7201 doesn't share font with the default face, a fontname is allocated
7202 from the heap and set in `font_name' of the new face, but it is not
7203 yet loaded here. Value is a pointer to the newly created realized
7206 static struct face
*
7207 realize_x_face (cache
, attrs
, c
, base_face
)
7208 struct face_cache
*cache
;
7211 struct face
*base_face
;
7213 struct face
*face
= NULL
;
7214 #ifdef HAVE_WINDOW_SYSTEM
7215 struct face
*default_face
;
7217 Lisp_Object stipple
, overline
, strike_through
, box
;
7219 xassert (FRAME_WINDOW_P (cache
->f
));
7220 xassert (SINGLE_BYTE_CHAR_P (c
)
7223 /* Allocate a new realized face. */
7224 face
= make_realized_face (attrs
);
7228 /* If C is a multibyte character, we share all face attirbutes with
7229 BASE_FACE including the realized fontset. But, we must load a
7231 if (!SINGLE_BYTE_CHAR_P (c
))
7233 bcopy (base_face
, face
, sizeof *face
);
7236 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7237 face
->colors_copied_bitwise_p
= 1;
7239 /* to force realize_face to load font */
7244 /* Now we are realizing a face for ASCII (and unibyte) characters. */
7246 /* Determine the font to use. Most of the time, the font will be
7247 the same as the font of the default face, so try that first. */
7248 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7250 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
7251 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7253 face
->font
= default_face
->font
;
7254 face
->fontset
= default_face
->fontset
;
7255 face
->font_info_id
= default_face
->font_info_id
;
7256 face
->font_name
= default_face
->font_name
;
7257 face
->ascii_face
= face
;
7259 /* But, as we can't share the fontset, make a new realized
7260 fontset that has the same base fontset as of the default
7263 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
7267 /* If the face attribute ATTRS specifies a fontset, use it as
7268 the base of a new realized fontset. Otherwise, use the same
7269 base fontset as of the default face. The base determines
7270 registry and encoding of a font. It may also determine
7271 foundry and family. The other fields of font name pattern
7272 are constructed from ATTRS. */
7273 int fontset
= face_fontset (attrs
);
7275 if ((fontset
== -1) && default_face
)
7276 fontset
= default_face
->fontset
;
7277 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
7278 face
->font
= NULL
; /* to force realize_face to load font */
7281 /* Load colors, and set remaining attributes. */
7283 load_face_colors (f
, face
, attrs
);
7286 box
= attrs
[LFACE_BOX_INDEX
];
7289 /* A simple box of line width 1 drawn in color given by
7291 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7293 face
->box
= FACE_SIMPLE_BOX
;
7294 face
->box_line_width
= 1;
7296 else if (INTEGERP (box
))
7298 /* Simple box of specified line width in foreground color of the
7300 xassert (XINT (box
) != 0);
7301 face
->box
= FACE_SIMPLE_BOX
;
7302 face
->box_line_width
= XINT (box
);
7303 face
->box_color
= face
->foreground
;
7304 face
->box_color_defaulted_p
= 1;
7306 else if (CONSP (box
))
7308 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7309 being one of `raised' or `sunken'. */
7310 face
->box
= FACE_SIMPLE_BOX
;
7311 face
->box_color
= face
->foreground
;
7312 face
->box_color_defaulted_p
= 1;
7313 face
->box_line_width
= 1;
7317 Lisp_Object keyword
, value
;
7319 keyword
= XCAR (box
);
7327 if (EQ (keyword
, QCline_width
))
7329 if (INTEGERP (value
) && XINT (value
) != 0)
7330 face
->box_line_width
= XINT (value
);
7332 else if (EQ (keyword
, QCcolor
))
7334 if (STRINGP (value
))
7336 face
->box_color
= load_color (f
, face
, value
,
7338 face
->use_box_color_for_shadows_p
= 1;
7341 else if (EQ (keyword
, QCstyle
))
7343 if (EQ (value
, Qreleased_button
))
7344 face
->box
= FACE_RAISED_BOX
;
7345 else if (EQ (value
, Qpressed_button
))
7346 face
->box
= FACE_SUNKEN_BOX
;
7351 /* Text underline, overline, strike-through. */
7353 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7355 /* Use default color (same as foreground color). */
7356 face
->underline_p
= 1;
7357 face
->underline_defaulted_p
= 1;
7358 face
->underline_color
= 0;
7360 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7362 /* Use specified color. */
7363 face
->underline_p
= 1;
7364 face
->underline_defaulted_p
= 0;
7365 face
->underline_color
7366 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7367 LFACE_UNDERLINE_INDEX
);
7369 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7371 face
->underline_p
= 0;
7372 face
->underline_defaulted_p
= 0;
7373 face
->underline_color
= 0;
7376 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7377 if (STRINGP (overline
))
7379 face
->overline_color
7380 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7381 LFACE_OVERLINE_INDEX
);
7382 face
->overline_p
= 1;
7384 else if (EQ (overline
, Qt
))
7386 face
->overline_color
= face
->foreground
;
7387 face
->overline_color_defaulted_p
= 1;
7388 face
->overline_p
= 1;
7391 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7392 if (STRINGP (strike_through
))
7394 face
->strike_through_color
7395 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7396 LFACE_STRIKE_THROUGH_INDEX
);
7397 face
->strike_through_p
= 1;
7399 else if (EQ (strike_through
, Qt
))
7401 face
->strike_through_color
= face
->foreground
;
7402 face
->strike_through_color_defaulted_p
= 1;
7403 face
->strike_through_p
= 1;
7406 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7407 if (!NILP (stipple
))
7408 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7410 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7411 #endif /* HAVE_WINDOW_SYSTEM */
7416 /* Map a specified color of face FACE on frame F to a tty color index.
7417 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7418 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7419 default foreground/background colors. */
7422 map_tty_color (f
, face
, idx
, defaulted
)
7425 enum lface_attribute_index idx
;
7428 Lisp_Object frame
, color
, def
;
7429 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7430 unsigned long default_pixel
, default_other_pixel
, pixel
;
7432 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7436 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7437 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7441 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7442 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7445 XSETFRAME (frame
, f
);
7446 color
= face
->lface
[idx
];
7450 && CONSP (Vtty_defined_color_alist
)
7451 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7454 /* Associations in tty-defined-color-alist are of the form
7455 (NAME INDEX R G B). We need the INDEX part. */
7456 pixel
= XINT (XCAR (XCDR (def
)));
7459 if (pixel
== default_pixel
&& STRINGP (color
))
7461 pixel
= load_color (f
, face
, color
, idx
);
7463 #if defined (MSDOS) || defined (WINDOWSNT)
7464 /* If the foreground of the default face is the default color,
7465 use the foreground color defined by the frame. */
7467 if (FRAME_MSDOS_P (f
))
7470 if (pixel
== default_pixel
7471 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7474 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7476 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7477 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7480 else if (pixel
== default_other_pixel
)
7483 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7485 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7486 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7492 #endif /* MSDOS or WINDOWSNT */
7496 face
->foreground
= pixel
;
7498 face
->background
= pixel
;
7502 /* Realize the fully-specified face with attributes ATTRS in face
7503 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7504 pointer to the newly created realized face. */
7506 static struct face
*
7507 realize_tty_face (cache
, attrs
, c
)
7508 struct face_cache
*cache
;
7514 int face_colors_defaulted
= 0;
7515 struct frame
*f
= cache
->f
;
7517 /* Frame must be a termcap frame. */
7518 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7520 /* Allocate a new realized face. */
7521 face
= make_realized_face (attrs
);
7522 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7524 /* Map face attributes to TTY appearances. We map slant to
7525 dimmed text because we want italic text to appear differently
7526 and because dimmed text is probably used infrequently. */
7527 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7528 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7530 if (weight
> XLFD_WEIGHT_MEDIUM
)
7531 face
->tty_bold_p
= 1;
7532 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7533 face
->tty_dim_p
= 1;
7534 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7535 face
->tty_underline_p
= 1;
7536 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7537 face
->tty_reverse_p
= 1;
7539 /* Map color names to color indices. */
7540 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7541 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7543 /* Swap colors if face is inverse-video. If the colors are taken
7544 from the frame colors, they are already inverted, since the
7545 frame-creation function calls x-handle-reverse-video. */
7546 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7548 unsigned long tem
= face
->foreground
;
7549 face
->foreground
= face
->background
;
7550 face
->background
= tem
;
7553 if (tty_suppress_bold_inverse_default_colors_p
7555 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7556 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7557 face
->tty_bold_p
= 0;
7563 DEFUN ("tty-suppress-bold-inverse-default-colors",
7564 Ftty_suppress_bold_inverse_default_colors
,
7565 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7566 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7567 SUPPRESS non-nil means suppress it.
7568 This affects bold faces on TTYs whose foreground is the default background
7569 color of the display and whose background is the default foreground color.
7570 For such faces, the bold face attribute is ignored if this variable
7573 Lisp_Object suppress
;
7575 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7576 ++face_change_count
;
7582 /***********************************************************************
7584 ***********************************************************************/
7586 /* Return the ID of the face to use to display character CH with face
7587 property PROP on frame F in current_buffer. */
7590 compute_char_face (f
, ch
, prop
)
7597 if (NILP (current_buffer
->enable_multibyte_characters
))
7602 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7603 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7607 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7608 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7609 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7610 merge_face_ref (f
, prop
, attrs
, 1, 0);
7611 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7617 /* Return the face ID associated with buffer position POS for
7618 displaying ASCII characters. Return in *ENDPTR the position at
7619 which a different face is needed, as far as text properties and
7620 overlays are concerned. W is a window displaying current_buffer.
7622 REGION_BEG, REGION_END delimit the region, so it can be
7625 LIMIT is a position not to scan beyond. That is to limit the time
7626 this function can take.
7628 If MOUSE is non-zero, use the character's mouse-face, not its face.
7630 The face returned is suitable for displaying ASCII characters. */
7633 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7634 endptr
, limit
, mouse
)
7637 int region_beg
, region_end
;
7642 struct frame
*f
= XFRAME (w
->frame
);
7643 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7644 Lisp_Object prop
, position
;
7646 Lisp_Object
*overlay_vec
;
7649 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7650 Lisp_Object limit1
, end
;
7651 struct face
*default_face
;
7653 /* W must display the current buffer. We could write this function
7654 to use the frame and buffer of W, but right now it doesn't. */
7655 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7657 XSETFRAME (frame
, f
);
7658 XSETFASTINT (position
, pos
);
7661 if (pos
< region_beg
&& region_beg
< endpos
)
7662 endpos
= region_beg
;
7664 /* Get the `face' or `mouse_face' text property at POS, and
7665 determine the next position at which the property changes. */
7666 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7667 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7668 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7670 endpos
= XINT (end
);
7672 /* Look at properties from overlays. */
7676 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7677 if (next_overlay
< endpos
)
7678 endpos
= next_overlay
;
7683 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7685 /* Optimize common cases where we can use the default face. */
7688 && !(pos
>= region_beg
&& pos
< region_end
))
7689 return DEFAULT_FACE_ID
;
7691 /* Begin with attributes from the default face. */
7692 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7694 /* Merge in attributes specified via text properties. */
7696 merge_face_ref (f
, prop
, attrs
, 1, 0);
7698 /* Now merge the overlay data. */
7699 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7700 for (i
= 0; i
< noverlays
; i
++)
7705 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7707 merge_face_ref (f
, prop
, attrs
, 1, 0);
7709 oend
= OVERLAY_END (overlay_vec
[i
]);
7710 oendpos
= OVERLAY_POSITION (oend
);
7711 if (oendpos
< endpos
)
7715 /* If in the region, merge in the region face. */
7716 if (pos
>= region_beg
&& pos
< region_end
)
7718 merge_named_face (f
, Qregion
, attrs
, 0);
7720 if (region_end
< endpos
)
7721 endpos
= region_end
;
7726 /* Look up a realized face with the given face attributes,
7727 or realize a new one for ASCII characters. */
7728 return lookup_face (f
, attrs
, 0, NULL
);
7732 /* Compute the face at character position POS in Lisp string STRING on
7733 window W, for ASCII characters.
7735 If STRING is an overlay string, it comes from position BUFPOS in
7736 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7737 not an overlay string. W must display the current buffer.
7738 REGION_BEG and REGION_END give the start and end positions of the
7739 region; both are -1 if no region is visible.
7741 BASE_FACE_ID is the id of a face to merge with. For strings coming
7742 from overlays or the `display' property it is the face at BUFPOS.
7744 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7746 Set *ENDPTR to the next position where to check for faces in
7747 STRING; -1 if the face is constant from POS to the end of the
7750 Value is the id of the face to use. The face returned is suitable
7751 for displaying ASCII characters. */
7754 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7755 region_end
, endptr
, base_face_id
, mouse_p
)
7759 int region_beg
, region_end
;
7761 enum face_id base_face_id
;
7764 Lisp_Object prop
, position
, end
, limit
;
7765 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7766 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7767 struct face
*base_face
;
7768 int multibyte_p
= STRING_MULTIBYTE (string
);
7769 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7771 /* Get the value of the face property at the current position within
7772 STRING. Value is nil if there is no face property. */
7773 XSETFASTINT (position
, pos
);
7774 prop
= Fget_text_property (position
, prop_name
, string
);
7776 /* Get the next position at which to check for faces. Value of end
7777 is nil if face is constant all the way to the end of the string.
7778 Otherwise it is a string position where to check faces next.
7779 Limit is the maximum position up to which to check for property
7780 changes in Fnext_single_property_change. Strings are usually
7781 short, so set the limit to the end of the string. */
7782 XSETFASTINT (limit
, SCHARS (string
));
7783 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7785 *endptr
= XFASTINT (end
);
7789 base_face
= FACE_FROM_ID (f
, base_face_id
);
7790 xassert (base_face
);
7792 /* Optimize the default case that there is no face property and we
7793 are not in the region. */
7795 && (base_face_id
!= DEFAULT_FACE_ID
7796 /* BUFPOS <= 0 means STRING is not an overlay string, so
7797 that the region doesn't have to be taken into account. */
7799 || bufpos
< region_beg
7800 || bufpos
>= region_end
)
7802 /* We can't realize faces for different charsets differently
7803 if we don't have fonts, so we can stop here if not working
7804 on a window-system frame. */
7805 || !FRAME_WINDOW_P (f
)
7806 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7807 return base_face
->id
;
7809 /* Begin with attributes from the base face. */
7810 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7812 /* Merge in attributes specified via text properties. */
7814 merge_face_ref (f
, prop
, attrs
, 1, 0);
7816 /* If in the region, merge in the region face. */
7818 && bufpos
>= region_beg
7819 && bufpos
< region_end
)
7820 merge_named_face (f
, Qregion
, attrs
, 0);
7822 /* Look up a realized face with the given face attributes,
7823 or realize a new one for ASCII characters. */
7824 return lookup_face (f
, attrs
, 0, NULL
);
7828 /* Merge a face into a realized face.
7830 F is frame where faces are (to be) realized.
7832 FACE_NAME is named face to merge.
7834 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
7836 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
7838 BASE_FACE_ID is realized face to merge into.
7844 merge_faces (f
, face_name
, face_id
, base_face_id
)
7846 Lisp_Object face_name
;
7847 int face_id
, base_face_id
;
7849 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7850 struct face
*base_face
;
7852 base_face
= FACE_FROM_ID (f
, base_face_id
);
7854 return base_face_id
;
7856 if (EQ (face_name
, Qt
))
7858 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
7859 return base_face_id
;
7860 face_name
= lface_id_to_name
[face_id
];
7861 face_id
= lookup_derived_face (f
, face_name
, 0, base_face_id
, 1);
7864 return base_face_id
;
7867 /* Begin with attributes from the base face. */
7868 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7870 if (!NILP (face_name
))
7872 if (!merge_named_face (f
, face_name
, attrs
, 0))
7873 return base_face_id
;
7879 return base_face_id
;
7880 face
= FACE_FROM_ID (f
, face_id
);
7882 return base_face_id
;
7883 merge_face_vectors (f
, face
->lface
, attrs
, 0);
7886 /* Look up a realized face with the given face attributes,
7887 or realize a new one for ASCII characters. */
7888 return lookup_face (f
, attrs
, 0, NULL
);
7892 /***********************************************************************
7894 ***********************************************************************/
7898 /* Print the contents of the realized face FACE to stderr. */
7901 dump_realized_face (face
)
7904 fprintf (stderr
, "ID: %d\n", face
->id
);
7905 #ifdef HAVE_X_WINDOWS
7906 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
7908 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7910 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7911 fprintf (stderr
, "background: 0x%lx (%s)\n",
7913 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7914 fprintf (stderr
, "font_name: %s (%s)\n",
7916 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7917 #ifdef HAVE_X_WINDOWS
7918 fprintf (stderr
, "font = %p\n", face
->font
);
7920 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7921 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7922 fprintf (stderr
, "underline: %d (%s)\n",
7924 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7925 fprintf (stderr
, "hash: %d\n", face
->hash
);
7926 fprintf (stderr
, "charset: %d\n", face
->charset
);
7930 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7938 fprintf (stderr
, "font selection order: ");
7939 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7940 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7941 fprintf (stderr
, "\n");
7943 fprintf (stderr
, "alternative fonts: ");
7944 debug_print (Vface_alternative_font_family_alist
);
7945 fprintf (stderr
, "\n");
7947 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7948 Fdump_face (make_number (i
));
7954 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7956 error ("Not a valid face");
7957 dump_realized_face (face
);
7964 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7965 0, 0, 0, doc
: /* */)
7968 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7969 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7970 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7974 #endif /* GLYPH_DEBUG != 0 */
7978 /***********************************************************************
7980 ***********************************************************************/
7985 Qface
= intern ("face");
7987 Qface_no_inherit
= intern ("face-no-inherit");
7988 staticpro (&Qface_no_inherit
);
7989 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7990 staticpro (&Qbitmap_spec_p
);
7991 Qframe_set_background_mode
= intern ("frame-set-background-mode");
7992 staticpro (&Qframe_set_background_mode
);
7994 /* Lisp face attribute keywords. */
7995 QCfamily
= intern (":family");
7996 staticpro (&QCfamily
);
7997 QCheight
= intern (":height");
7998 staticpro (&QCheight
);
7999 QCweight
= intern (":weight");
8000 staticpro (&QCweight
);
8001 QCslant
= intern (":slant");
8002 staticpro (&QCslant
);
8003 QCunderline
= intern (":underline");
8004 staticpro (&QCunderline
);
8005 QCinverse_video
= intern (":inverse-video");
8006 staticpro (&QCinverse_video
);
8007 QCreverse_video
= intern (":reverse-video");
8008 staticpro (&QCreverse_video
);
8009 QCforeground
= intern (":foreground");
8010 staticpro (&QCforeground
);
8011 QCbackground
= intern (":background");
8012 staticpro (&QCbackground
);
8013 QCstipple
= intern (":stipple");;
8014 staticpro (&QCstipple
);
8015 QCwidth
= intern (":width");
8016 staticpro (&QCwidth
);
8017 QCfont
= intern (":font");
8018 staticpro (&QCfont
);
8019 QCbold
= intern (":bold");
8020 staticpro (&QCbold
);
8021 QCitalic
= intern (":italic");
8022 staticpro (&QCitalic
);
8023 QCoverline
= intern (":overline");
8024 staticpro (&QCoverline
);
8025 QCstrike_through
= intern (":strike-through");
8026 staticpro (&QCstrike_through
);
8027 QCbox
= intern (":box");
8029 QCinherit
= intern (":inherit");
8030 staticpro (&QCinherit
);
8032 /* Symbols used for Lisp face attribute values. */
8033 QCcolor
= intern (":color");
8034 staticpro (&QCcolor
);
8035 QCline_width
= intern (":line-width");
8036 staticpro (&QCline_width
);
8037 QCstyle
= intern (":style");
8038 staticpro (&QCstyle
);
8039 Qreleased_button
= intern ("released-button");
8040 staticpro (&Qreleased_button
);
8041 Qpressed_button
= intern ("pressed-button");
8042 staticpro (&Qpressed_button
);
8043 Qnormal
= intern ("normal");
8044 staticpro (&Qnormal
);
8045 Qultra_light
= intern ("ultra-light");
8046 staticpro (&Qultra_light
);
8047 Qextra_light
= intern ("extra-light");
8048 staticpro (&Qextra_light
);
8049 Qlight
= intern ("light");
8050 staticpro (&Qlight
);
8051 Qsemi_light
= intern ("semi-light");
8052 staticpro (&Qsemi_light
);
8053 Qsemi_bold
= intern ("semi-bold");
8054 staticpro (&Qsemi_bold
);
8055 Qbold
= intern ("bold");
8057 Qextra_bold
= intern ("extra-bold");
8058 staticpro (&Qextra_bold
);
8059 Qultra_bold
= intern ("ultra-bold");
8060 staticpro (&Qultra_bold
);
8061 Qoblique
= intern ("oblique");
8062 staticpro (&Qoblique
);
8063 Qitalic
= intern ("italic");
8064 staticpro (&Qitalic
);
8065 Qreverse_oblique
= intern ("reverse-oblique");
8066 staticpro (&Qreverse_oblique
);
8067 Qreverse_italic
= intern ("reverse-italic");
8068 staticpro (&Qreverse_italic
);
8069 Qultra_condensed
= intern ("ultra-condensed");
8070 staticpro (&Qultra_condensed
);
8071 Qextra_condensed
= intern ("extra-condensed");
8072 staticpro (&Qextra_condensed
);
8073 Qcondensed
= intern ("condensed");
8074 staticpro (&Qcondensed
);
8075 Qsemi_condensed
= intern ("semi-condensed");
8076 staticpro (&Qsemi_condensed
);
8077 Qsemi_expanded
= intern ("semi-expanded");
8078 staticpro (&Qsemi_expanded
);
8079 Qexpanded
= intern ("expanded");
8080 staticpro (&Qexpanded
);
8081 Qextra_expanded
= intern ("extra-expanded");
8082 staticpro (&Qextra_expanded
);
8083 Qultra_expanded
= intern ("ultra-expanded");
8084 staticpro (&Qultra_expanded
);
8085 Qbackground_color
= intern ("background-color");
8086 staticpro (&Qbackground_color
);
8087 Qforeground_color
= intern ("foreground-color");
8088 staticpro (&Qforeground_color
);
8089 Qunspecified
= intern ("unspecified");
8090 staticpro (&Qunspecified
);
8091 Qignore_defface
= intern (":ignore-defface");
8092 staticpro (&Qignore_defface
);
8094 Qface_alias
= intern ("face-alias");
8095 staticpro (&Qface_alias
);
8096 Qdefault
= intern ("default");
8097 staticpro (&Qdefault
);
8098 Qtool_bar
= intern ("tool-bar");
8099 staticpro (&Qtool_bar
);
8100 Qregion
= intern ("region");
8101 staticpro (&Qregion
);
8102 Qfringe
= intern ("fringe");
8103 staticpro (&Qfringe
);
8104 Qheader_line
= intern ("header-line");
8105 staticpro (&Qheader_line
);
8106 Qscroll_bar
= intern ("scroll-bar");
8107 staticpro (&Qscroll_bar
);
8108 Qmenu
= intern ("menu");
8110 Qcursor
= intern ("cursor");
8111 staticpro (&Qcursor
);
8112 Qborder
= intern ("border");
8113 staticpro (&Qborder
);
8114 Qmouse
= intern ("mouse");
8115 staticpro (&Qmouse
);
8116 Qmode_line_inactive
= intern ("mode-line-inactive");
8117 staticpro (&Qmode_line_inactive
);
8118 Qvertical_border
= intern ("vertical-border");
8119 staticpro (&Qvertical_border
);
8120 Qtty_color_desc
= intern ("tty-color-desc");
8121 staticpro (&Qtty_color_desc
);
8122 Qtty_color_standard_values
= intern ("tty-color-standard-values");
8123 staticpro (&Qtty_color_standard_values
);
8124 Qtty_color_by_index
= intern ("tty-color-by-index");
8125 staticpro (&Qtty_color_by_index
);
8126 Qtty_color_alist
= intern ("tty-color-alist");
8127 staticpro (&Qtty_color_alist
);
8128 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
8129 staticpro (&Qscalable_fonts_allowed
);
8131 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
8132 staticpro (&Vparam_value_alist
);
8133 Vface_alternative_font_family_alist
= Qnil
;
8134 staticpro (&Vface_alternative_font_family_alist
);
8135 Vface_alternative_font_registry_alist
= Qnil
;
8136 staticpro (&Vface_alternative_font_registry_alist
);
8138 defsubr (&Sinternal_make_lisp_face
);
8139 defsubr (&Sinternal_lisp_face_p
);
8140 defsubr (&Sinternal_set_lisp_face_attribute
);
8141 #ifdef HAVE_WINDOW_SYSTEM
8142 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
8144 defsubr (&Scolor_gray_p
);
8145 defsubr (&Scolor_supported_p
);
8146 defsubr (&Sface_attribute_relative_p
);
8147 defsubr (&Smerge_face_attribute
);
8148 defsubr (&Sinternal_get_lisp_face_attribute
);
8149 defsubr (&Sinternal_lisp_face_attribute_values
);
8150 defsubr (&Sinternal_lisp_face_equal_p
);
8151 defsubr (&Sinternal_lisp_face_empty_p
);
8152 defsubr (&Sinternal_copy_lisp_face
);
8153 defsubr (&Sinternal_merge_in_global_face
);
8154 defsubr (&Sface_font
);
8155 defsubr (&Sframe_face_alist
);
8156 defsubr (&Sdisplay_supports_face_attributes_p
);
8157 defsubr (&Scolor_distance
);
8158 defsubr (&Sinternal_set_font_selection_order
);
8159 defsubr (&Sinternal_set_alternative_font_family_alist
);
8160 defsubr (&Sinternal_set_alternative_font_registry_alist
);
8161 defsubr (&Sface_attributes_as_vector
);
8163 defsubr (&Sdump_face
);
8164 defsubr (&Sshow_face_resources
);
8165 #endif /* GLYPH_DEBUG */
8166 defsubr (&Sclear_face_cache
);
8167 defsubr (&Stty_suppress_bold_inverse_default_colors
);
8169 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
8170 defsubr (&Sdump_colors
);
8173 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
8174 doc
: /* *Limit for font matching.
8175 If an integer > 0, font matching functions won't load more than
8176 that number of fonts when searching for a matching font. */);
8177 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
8179 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
8180 doc
: /* List of global face definitions (for internal use only.) */);
8181 Vface_new_frame_defaults
= Qnil
;
8183 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
8184 doc
: /* *Default stipple pattern used on monochrome displays.
8185 This stipple pattern is used on monochrome displays
8186 instead of shades of gray for a face background color.
8187 See `set-face-stipple' for possible values for this variable. */);
8188 Vface_default_stipple
= build_string ("gray3");
8190 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
8191 doc
: /* An alist of defined terminal colors and their RGB values. */);
8192 Vtty_defined_color_alist
= Qnil
;
8194 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
8195 doc
: /* Allowed scalable fonts.
8196 A value of nil means don't allow any scalable fonts.
8197 A value of t means allow any scalable font.
8198 Otherwise, value must be a list of regular expressions. A font may be
8199 scaled if its name matches a regular expression in the list.
8200 Note that if value is nil, a scalable font might still be used, if no
8201 other font of the appropriate family and registry is available. */);
8202 Vscalable_fonts_allowed
= Qnil
;
8204 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
8205 doc
: /* List of ignored fonts.
8206 Each element is a regular expression that matches names of fonts to
8208 Vface_ignored_fonts
= Qnil
;
8210 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
8211 doc
: /* Alist of fonts vs the rescaling factors.
8212 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
8213 FONT-NAME-PATTERN is a regular expression matching a font name, and
8214 RESCALE-RATIO is a floating point number to specify how much larger
8215 \(or smaller) font we should use. For instance, if a face requests
8216 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
8217 Vface_font_rescale_alist
= Qnil
;
8219 #ifdef HAVE_WINDOW_SYSTEM
8220 defsubr (&Sbitmap_spec_p
);
8221 defsubr (&Sx_list_fonts
);
8222 defsubr (&Sinternal_face_x_get_resource
);
8223 defsubr (&Sx_family_fonts
);
8224 defsubr (&Sx_font_family_list
);
8225 #endif /* HAVE_WINDOW_SYSTEM */
8228 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
8229 (do not change this comment) */