1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
3 2005 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 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.
77 Faces are frame-local by nature because Emacs allows to define the
78 same named face (face names are symbols) differently for different
79 frames. Each frame has an alist of face definitions for all named
80 faces. The value of a named face in such an alist is a Lisp vector
81 with the symbol `face' in slot 0, and a slot for each of the face
82 attributes mentioned above.
84 There is also a global face alist `Vface_new_frame_defaults'. Face
85 definitions from this list are used to initialize faces of newly
88 A face doesn't have to specify all attributes. Those not specified
89 have a value of `unspecified'. Faces specifying all attributes but
90 the 14th are called `fully-specified'.
95 The display style of a given character in the text is determined by
96 combining several faces. This process is called `face merging'.
97 Any aspect of the display style that isn't specified by overlays or
98 text properties is taken from the `default' face. Since it is made
99 sure that the default face is always fully-specified, face merging
100 always results in a fully-specified face.
105 After all face attributes for a character have been determined by
106 merging faces of that character, that face is `realized'. The
107 realization process maps face attributes to what is physically
108 available on the system where Emacs runs. The result is a
109 `realized face' in form of a struct face which is stored in the
110 face cache of the frame on which it was realized.
112 Face realization is done in the context of the character to display
113 because different fonts may be used for different characters. In
114 other words, for characters that have different font
115 specifications, different realized faces are needed to display
118 Font specification is done by fontsets. See the comment in
119 fontset.c for the details. In the current implementation, all ASCII
120 characters share the same font in a fontset.
122 Faces are at first realized for ASCII characters, and, at that
123 time, assigned a specific realized fontset. Hereafter, we call
124 such a face as `ASCII face'. When a face for a multibyte character
125 is realized, it inherits (thus shares) a fontset of an ASCII face
126 that has the same attributes other than font-related ones.
128 Thus, all realized faces have a realized fontset.
133 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
134 font as ASCII characters. That is because it is expected that
135 unibyte text users specify a font that is suitable both for ASCII
136 and raw 8-bit characters.
141 Font selection tries to find the best available matching font for a
142 given (character, face) combination.
144 If the face specifies a fontset name, that fontset determines a
145 pattern for fonts of the given character. If the face specifies a
146 font name or the other font-related attributes, a fontset is
147 realized from the default fontset. In that case, that
148 specification determines a pattern for ASCII characters and the
149 default fontset determines a pattern for multibyte characters.
151 Available fonts on the system on which Emacs runs are then matched
152 against the font pattern. The result of font selection is the best
153 match for the given face attributes in this font list.
155 Font selection can be influenced by the user.
157 1. The user can specify the relative importance he gives the face
158 attributes width, height, weight, and slant by setting
159 face-font-selection-order (faces.el) to a list of face attribute
160 names. The default is '(:width :height :weight :slant), and means
161 that font selection first tries to find a good match for the font
162 width specified by a face, then---within fonts with that
163 width---tries to find a best match for the specified font height,
166 2. Setting face-font-family-alternatives allows the user to
167 specify alternative font families to try if a family specified by a
170 3. Setting face-font-registry-alternatives allows the user to
171 specify all alternative font registries to try for a face
172 specifying a registry.
174 4. Setting face-ignored-fonts allows the user to ignore specific
178 Character composition.
180 Usually, the realization process is already finished when Emacs
181 actually reflects the desired glyph matrix on the screen. However,
182 on displaying a composition (sequence of characters to be composed
183 on the screen), a suitable font for the components of the
184 composition is selected and realized while drawing them on the
185 screen, i.e. the realization process is delayed but in principle
189 Initialization of basic faces.
191 The faces `default', `modeline' are considered `basic faces'.
192 When redisplay happens the first time for a newly created frame,
193 basic faces are realized for CHARSET_ASCII. Frame parameters are
194 used to fill in unspecified attributes of the default face. */
198 #include <sys/types.h>
199 #include <sys/stat.h>
202 #include "character.h"
204 #include "keyboard.h"
207 #ifdef HAVE_WINDOW_SYSTEM
209 #endif /* HAVE_WINDOW_SYSTEM */
211 #ifdef HAVE_X_WINDOWS
215 #include <Xm/XmStrDefs.h>
216 #endif /* USE_MOTIF */
217 #endif /* HAVE_X_WINDOWS */
226 /* Redefine X specifics to W32 equivalents to avoid cluttering the
227 code with #ifdef blocks. */
228 #undef FRAME_X_DISPLAY_INFO
229 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
230 #define x_display_info w32_display_info
231 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
232 #define check_x check_w32
233 #define x_list_fonts w32_list_fonts
234 #define GCGraphicsExposures 0
235 #endif /* WINDOWSNT */
239 #define x_display_info mac_display_info
240 #define check_x check_mac
244 #include "dispextern.h"
245 #include "blockinput.h"
247 #include "intervals.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 /* Value is the number of elements of VECTOR. */
282 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
284 /* Make a copy of string S on the stack using alloca. Value is a pointer
287 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
289 /* Make a copy of the contents of Lisp string S on the stack using
290 alloca. Value is a pointer to the copy. */
292 #define LSTRDUPA(S) STRDUPA (SDATA ((S)))
294 /* Size of hash table of realized faces in face caches (should be a
297 #define FACE_CACHE_BUCKETS_SIZE 1001
299 /* Keyword symbols used for face attribute names. */
301 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
302 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
303 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
304 Lisp_Object QCreverse_video
;
305 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
306 Lisp_Object QCfontset
;
308 /* Symbols used for attribute values. */
310 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
311 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
312 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
313 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
314 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
315 Lisp_Object Qultra_expanded
;
316 Lisp_Object Qreleased_button
, Qpressed_button
;
317 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
318 Lisp_Object Qunspecified
;
320 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
322 /* The name of the function to call when the background of the frame
323 has changed, frame_set_background_mode. */
325 Lisp_Object Qframe_set_background_mode
;
327 /* Names of basic faces. */
329 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
330 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
331 Lisp_Object Qmode_line_inactive
, Qvertical_border
;
332 extern Lisp_Object Qmode_line
;
334 /* The symbol `face-alias'. A symbols having that property is an
335 alias for another face. Value of the property is the name of
338 Lisp_Object Qface_alias
;
340 extern Lisp_Object Qcircular_list
;
342 /* Default stipple pattern used on monochrome displays. This stipple
343 pattern is used on monochrome displays instead of shades of gray
344 for a face background color. See `set-face-stipple' for possible
345 values for this variable. */
347 Lisp_Object Vface_default_stipple
;
349 /* Alist of alternative font families. Each element is of the form
350 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
351 try FAMILY1, then FAMILY2, ... */
353 Lisp_Object Vface_alternative_font_family_alist
;
355 /* Alist of alternative font registries. Each element is of the form
356 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
357 loaded, try REGISTRY1, then REGISTRY2, ... */
359 Lisp_Object Vface_alternative_font_registry_alist
;
361 /* Allowed scalable fonts. A value of nil means don't allow any
362 scalable fonts. A value of t means allow the use of any scalable
363 font. Otherwise, value must be a list of regular expressions. A
364 font may be scaled if its name matches a regular expression in the
367 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
369 /* List of regular expressions that matches names of fonts to ignore. */
371 Lisp_Object Vface_ignored_fonts
;
373 /* Alist of font name patterns vs the rescaling factor. */
375 Lisp_Object Vface_font_rescale_alist
;
377 /* Maximum number of fonts to consider in font_list. If not an
378 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
380 Lisp_Object Vfont_list_limit
;
381 #define DEFAULT_FONT_LIST_LIMIT 100
383 /* The symbols `foreground-color' and `background-color' which can be
384 used as part of a `face' property. This is for compatibility with
387 Lisp_Object Qforeground_color
, Qbackground_color
;
389 /* The symbols `face' and `mouse-face' used as text properties. */
392 extern Lisp_Object Qmouse_face
;
394 /* Property for basic faces which other faces cannot inherit. */
396 Lisp_Object Qface_no_inherit
;
398 /* Error symbol for wrong_type_argument in load_pixmap. */
400 Lisp_Object Qbitmap_spec_p
;
402 /* Alist of global face definitions. Each element is of the form
403 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
404 is a Lisp vector of face attributes. These faces are used
405 to initialize faces for new frames. */
407 Lisp_Object Vface_new_frame_defaults
;
409 /* The next ID to assign to Lisp faces. */
411 static int next_lface_id
;
413 /* A vector mapping Lisp face Id's to face names. */
415 static Lisp_Object
*lface_id_to_name
;
416 static int lface_id_to_name_size
;
418 /* TTY color-related functions (defined in tty-colors.el). */
420 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
422 /* The name of the function used to compute colors on TTYs. */
424 Lisp_Object Qtty_color_alist
;
426 /* An alist of defined terminal colors and their RGB values. */
428 Lisp_Object Vtty_defined_color_alist
;
430 /* Counter for calls to clear_face_cache. If this counter reaches
431 CLEAR_FONT_TABLE_COUNT, and a frame has more than
432 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
434 static int clear_font_table_count
;
435 #define CLEAR_FONT_TABLE_COUNT 100
436 #define CLEAR_FONT_TABLE_NFONTS 10
438 /* Non-zero means face attributes have been changed since the last
439 redisplay. Used in redisplay_internal. */
441 int face_change_count
;
443 /* Non-zero means don't display bold text if a face's foreground
444 and background colors are the inverse of the default colors of the
445 display. This is a kluge to suppress `bold black' foreground text
446 which is hard to read on an LCD monitor. */
448 int tty_suppress_bold_inverse_default_colors_p
;
450 /* A list of the form `((x . y))' used to avoid consing in
451 Finternal_set_lisp_face_attribute. */
453 static Lisp_Object Vparam_value_alist
;
455 /* The total number of colors currently allocated. */
458 static int ncolors_allocated
;
459 static int npixmaps_allocated
;
463 /* Non-zero means the definition of the `menu' face for new frames has
466 int menu_face_changed_default
;
469 /* Function prototypes. */
473 struct named_merge_point
;
475 static void map_tty_color
P_ ((struct frame
*, struct face
*,
476 enum lface_attribute_index
, int *));
477 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
, int));
478 static int may_use_scalable_font_p
P_ ((const char *));
479 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
480 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
482 static int x_face_list_fonts
P_ ((struct frame
*, char *,
483 struct font_name
**, int, int));
484 static int font_scalable_p
P_ ((struct font_name
*));
485 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
486 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
487 static unsigned char *xstrlwr
P_ ((unsigned char *));
488 static void signal_error
P_ ((char *, Lisp_Object
));
489 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
490 static void load_face_font
P_ ((struct frame
*, struct face
*));
491 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
492 static void free_face_colors
P_ ((struct frame
*, struct face
*));
493 static int face_color_gray_p
P_ ((struct frame
*, char *));
494 static char *build_font_name
P_ ((struct font_name
*));
495 static void free_font_names
P_ ((struct font_name
*, int));
496 static int sorted_font_list
P_ ((struct frame
*, char *,
497 int (*cmpfn
) P_ ((const void *, const void *)),
498 struct font_name
**));
499 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
500 Lisp_Object
, struct font_name
**));
501 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
502 Lisp_Object
, struct font_name
**));
503 static int try_font_list
P_ ((struct frame
*, Lisp_Object
,
504 Lisp_Object
, Lisp_Object
, struct font_name
**));
505 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
506 Lisp_Object
, struct font_name
**));
507 static int cmp_font_names
P_ ((const void *, const void *));
508 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*,
510 static struct face
*realize_non_ascii_face
P_ ((struct frame
*, int,
512 static struct face
*realize_x_face
P_ ((struct face_cache
*, Lisp_Object
*));
513 static struct face
*realize_tty_face
P_ ((struct face_cache
*, Lisp_Object
*));
514 static int realize_basic_faces
P_ ((struct frame
*));
515 static int realize_default_face
P_ ((struct frame
*));
516 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
517 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
518 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
519 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
520 static unsigned lface_hash
P_ ((Lisp_Object
*));
521 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
522 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
523 static void clear_face_gcs
P_ ((struct face_cache
*));
524 static void free_face_cache
P_ ((struct face_cache
*));
525 static int face_numeric_weight
P_ ((Lisp_Object
));
526 static int face_numeric_slant
P_ ((Lisp_Object
));
527 static int face_numeric_swidth
P_ ((Lisp_Object
));
528 static int face_fontset
P_ ((Lisp_Object
*));
529 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*,
530 struct named_merge_point
*));
531 static int merge_face_ref
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*,
532 int, struct named_merge_point
*));
533 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
534 Lisp_Object
, int, int));
535 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
536 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
537 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
538 struct font_name
*, int, int, int *));
539 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
540 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
541 static int xlfd_numeric_slant
P_ ((struct font_name
*));
542 static int xlfd_numeric_weight
P_ ((struct font_name
*));
543 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
544 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
545 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
546 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
547 static int xlfd_fixed_p
P_ ((struct font_name
*));
548 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
550 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
551 struct font_name
*, int,
553 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
554 struct font_name
*, int));
556 #ifdef HAVE_WINDOW_SYSTEM
558 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
559 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
560 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
561 int (*cmpfn
) P_ ((const void *, const void *))));
562 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
563 static void x_free_gc
P_ ((struct frame
*, GC
));
564 static void clear_font_table
P_ ((struct x_display_info
*));
567 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
568 #endif /* WINDOWSNT */
571 static void x_update_menu_appearance
P_ ((struct frame
*));
573 extern void free_frame_menubar
P_ ((struct frame
*));
574 #endif /* USE_X_TOOLKIT */
576 #endif /* HAVE_WINDOW_SYSTEM */
579 /***********************************************************************
581 ***********************************************************************/
583 #ifdef HAVE_X_WINDOWS
585 #ifdef DEBUG_X_COLORS
587 /* The following is a poor mans infrastructure for debugging X color
588 allocation problems on displays with PseudoColor-8. Some X servers
589 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
590 color reference counts completely so that they don't signal an
591 error when a color is freed whose reference count is already 0.
592 Other X servers do. To help me debug this, the following code
593 implements a simple reference counting schema of its own, for a
594 single display/screen. --gerd. */
596 /* Reference counts for pixel colors. */
598 int color_count
[256];
600 /* Register color PIXEL as allocated. */
603 register_color (pixel
)
606 xassert (pixel
< 256);
607 ++color_count
[pixel
];
611 /* Register color PIXEL as deallocated. */
614 unregister_color (pixel
)
617 xassert (pixel
< 256);
618 if (color_count
[pixel
] > 0)
619 --color_count
[pixel
];
625 /* Register N colors from PIXELS as deallocated. */
628 unregister_colors (pixels
, n
)
629 unsigned long *pixels
;
633 for (i
= 0; i
< n
; ++i
)
634 unregister_color (pixels
[i
]);
638 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
639 doc
: /* Dump currently allocated colors to stderr. */)
644 fputc ('\n', stderr
);
646 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
649 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
652 fputc ('\n', stderr
);
654 fputc ('\t', stderr
);
658 fputc ('\n', stderr
);
662 #endif /* DEBUG_X_COLORS */
665 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
666 color values. Interrupt input must be blocked when this function
670 x_free_colors (f
, pixels
, npixels
)
672 unsigned long *pixels
;
675 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
677 /* If display has an immutable color map, freeing colors is not
678 necessary and some servers don't allow it. So don't do it. */
679 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
681 #ifdef DEBUG_X_COLORS
682 unregister_colors (pixels
, npixels
);
684 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
690 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
691 color values. Interrupt input must be blocked when this function
695 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
699 unsigned long *pixels
;
702 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
703 int class = dpyinfo
->visual
->class;
705 /* If display has an immutable color map, freeing colors is not
706 necessary and some servers don't allow it. So don't do it. */
707 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
709 #ifdef DEBUG_X_COLORS
710 unregister_colors (pixels
, npixels
);
712 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
717 /* Create and return a GC for use on frame F. GC values and mask
718 are given by XGCV and MASK. */
721 x_create_gc (f
, mask
, xgcv
)
728 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
735 /* Free GC which was used on frame F. */
743 IF_DEBUG (xassert (--ngcs
>= 0));
744 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
748 #endif /* HAVE_X_WINDOWS */
751 /* W32 emulation of GCs */
754 x_create_gc (f
, mask
, xgcv
)
761 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
768 /* Free GC which was used on frame F. */
776 IF_DEBUG (xassert (--ngcs
>= 0));
781 #endif /* WINDOWSNT */
784 /* Mac OS emulation of GCs */
787 x_create_gc (f
, mask
, xgcv
)
793 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
802 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
807 /* Like stricmp. Used to compare parts of font names which are in
812 const unsigned char *s1
, *s2
;
816 unsigned char c1
= tolower (*s1
);
817 unsigned char c2
= tolower (*s2
);
819 return c1
< c2
? -1 : 1;
824 return *s2
== 0 ? 0 : -1;
829 /* Like strlwr, which might not always be available. */
831 static unsigned char *
835 unsigned char *p
= s
;
838 /* On Mac OS X 10.3, tolower also converts non-ASCII characters
847 /* Signal `error' with message S, and additional argument ARG. */
850 signal_error (s
, arg
)
854 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
858 /* If FRAME is nil, return a pointer to the selected frame.
859 Otherwise, check that FRAME is a live frame, and return a pointer
860 to it. NPARAM is the parameter number of FRAME, for
861 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
862 Lisp function definitions. */
864 static INLINE
struct frame
*
865 frame_or_selected_frame (frame
, nparam
)
870 frame
= selected_frame
;
872 CHECK_LIVE_FRAME (frame
);
873 return XFRAME (frame
);
877 /***********************************************************************
879 ***********************************************************************/
881 /* Initialize face cache and basic faces for frame F. */
887 /* Make a face cache, if F doesn't have one. */
888 if (FRAME_FACE_CACHE (f
) == NULL
)
889 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
891 #ifdef HAVE_WINDOW_SYSTEM
892 /* Make the image cache. */
893 if (FRAME_WINDOW_P (f
))
895 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
896 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
897 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
899 #endif /* HAVE_WINDOW_SYSTEM */
901 /* Realize basic faces. Must have enough information in frame
902 parameters to realize basic faces at this point. */
903 #ifdef HAVE_X_WINDOWS
904 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
907 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
910 if (!FRAME_MAC_P (f
) || FRAME_MAC_WINDOW (f
))
912 if (!realize_basic_faces (f
))
917 /* Free face cache of frame F. Called from Fdelete_frame. */
923 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
927 free_face_cache (face_cache
);
928 FRAME_FACE_CACHE (f
) = NULL
;
931 #ifdef HAVE_WINDOW_SYSTEM
932 if (FRAME_WINDOW_P (f
))
934 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
937 --image_cache
->refcount
;
938 if (image_cache
->refcount
== 0)
939 free_image_cache (f
);
942 #endif /* HAVE_WINDOW_SYSTEM */
946 /* Clear face caches, and recompute basic faces for frame F. Call
947 this after changing frame parameters on which those faces depend,
948 or when realized faces have been freed due to changing attributes
952 recompute_basic_faces (f
)
955 if (FRAME_FACE_CACHE (f
))
957 clear_face_cache (0);
958 if (!realize_basic_faces (f
))
964 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
965 try to free unused fonts, too. */
968 clear_face_cache (clear_fonts_p
)
971 #ifdef HAVE_WINDOW_SYSTEM
972 Lisp_Object tail
, frame
;
976 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
978 struct x_display_info
*dpyinfo
;
980 /* Fonts are common for frames on one display, i.e. on
982 for (dpyinfo
= x_display_list
; dpyinfo
; dpyinfo
= dpyinfo
->next
)
983 if (dpyinfo
->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
984 clear_font_table (dpyinfo
);
986 /* From time to time see if we can unload some fonts. This also
987 frees all realized faces on all frames. Fonts needed by
988 faces will be loaded again when faces are realized again. */
989 clear_font_table_count
= 0;
991 FOR_EACH_FRAME (tail
, frame
)
993 struct frame
*f
= XFRAME (frame
);
994 if (FRAME_WINDOW_P (f
)
995 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
996 free_all_realized_faces (frame
);
1001 /* Clear GCs of realized faces. */
1002 FOR_EACH_FRAME (tail
, frame
)
1005 if (FRAME_WINDOW_P (f
))
1007 clear_face_gcs (FRAME_FACE_CACHE (f
));
1008 clear_image_cache (f
, 0);
1012 #endif /* HAVE_WINDOW_SYSTEM */
1016 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1017 doc
: /* Clear face caches on all frames.
1018 Optional THOROUGHLY non-nil means try to free unused fonts, too. */)
1020 Lisp_Object thoroughly
;
1022 clear_face_cache (!NILP (thoroughly
));
1023 ++face_change_count
;
1024 ++windows_or_buffers_changed
;
1030 #ifdef HAVE_WINDOW_SYSTEM
1033 /* Remove fonts from the font table of DPYINFO except for the default
1034 ASCII fonts of frames on that display. Called from clear_face_cache
1035 from time to time. */
1038 clear_font_table (dpyinfo
)
1039 struct x_display_info
*dpyinfo
;
1043 /* Free those fonts that are not used by frames on DPYINFO. */
1044 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1046 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1047 Lisp_Object tail
, frame
;
1049 /* Check if slot is already free. */
1050 if (font_info
->name
== NULL
)
1053 /* Don't free a default font of some frame. */
1054 FOR_EACH_FRAME (tail
, frame
)
1056 struct frame
*f
= XFRAME (frame
);
1057 if (FRAME_WINDOW_P (f
)
1058 && font_info
->font
== FRAME_FONT (f
))
1066 if (font_info
->full_name
!= font_info
->name
)
1067 xfree (font_info
->full_name
);
1068 xfree (font_info
->name
);
1070 /* Free the font. */
1072 #ifdef HAVE_X_WINDOWS
1073 XFreeFont (dpyinfo
->display
, font_info
->font
);
1076 w32_unload_font (dpyinfo
, font_info
->font
);
1079 mac_unload_font (dpyinfo
, font_info
->font
);
1083 /* Mark font table slot free. */
1084 font_info
->font
= NULL
;
1085 font_info
->name
= font_info
->full_name
= NULL
;
1089 #endif /* HAVE_WINDOW_SYSTEM */
1093 /***********************************************************************
1095 ***********************************************************************/
1097 #ifdef HAVE_WINDOW_SYSTEM
1099 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1100 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
1101 A bitmap specification is either a string, a file name, or a list
1102 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
1103 HEIGHT is its height, and DATA is a string containing the bits of
1104 the pixmap. Bits are stored row by row, each row occupies
1105 \(WIDTH + 7)/8 bytes. */)
1111 if (STRINGP (object
))
1112 /* If OBJECT is a string, it's a file name. */
1114 else if (CONSP (object
))
1116 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1117 HEIGHT must be integers > 0, and DATA must be string large
1118 enough to hold a bitmap of the specified size. */
1119 Lisp_Object width
, height
, data
;
1121 height
= width
= data
= Qnil
;
1125 width
= XCAR (object
);
1126 object
= XCDR (object
);
1129 height
= XCAR (object
);
1130 object
= XCDR (object
);
1132 data
= XCAR (object
);
1136 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1138 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1140 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1145 return pixmap_p
? Qt
: Qnil
;
1149 /* Load a bitmap according to NAME (which is either a file name or a
1150 pixmap spec) for use on frame F. Value is the bitmap_id (see
1151 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1152 bitmap cannot be loaded, display a message saying so, and return
1153 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1154 if these pointers are not null. */
1157 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1160 unsigned int *w_ptr
, *h_ptr
;
1168 tem
= Fbitmap_spec_p (name
);
1170 wrong_type_argument (Qbitmap_spec_p
, name
);
1175 /* Decode a bitmap spec into a bitmap. */
1180 w
= XINT (Fcar (name
));
1181 h
= XINT (Fcar (Fcdr (name
)));
1182 bits
= Fcar (Fcdr (Fcdr (name
)));
1184 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1189 /* It must be a string -- a file name. */
1190 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1196 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1207 ++npixmaps_allocated
;
1210 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1213 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1219 #endif /* HAVE_WINDOW_SYSTEM */
1223 /***********************************************************************
1225 ***********************************************************************/
1227 #ifdef HAVE_WINDOW_SYSTEM
1229 /* Load font of face FACE which is used on frame F to display ASCII
1230 characters. The name of the font to load is determined by lface. */
1233 load_face_font (f
, face
)
1237 struct font_info
*font_info
= NULL
;
1239 int needs_overstrike
;
1241 face
->font_info_id
= -1;
1243 face
->font_name
= NULL
;
1245 font_name
= choose_face_font (f
, face
->lface
, Qnil
, &needs_overstrike
);
1250 font_info
= FS_LOAD_FONT (f
, font_name
);
1255 face
->font_info_id
= font_info
->font_idx
;
1256 face
->font
= font_info
->font
;
1257 face
->font_name
= font_info
->full_name
;
1258 face
->overstrike
= needs_overstrike
;
1261 x_free_gc (f
, face
->gc
);
1266 add_to_log ("Unable to load font %s",
1267 build_string (font_name
), Qnil
);
1271 #endif /* HAVE_WINDOW_SYSTEM */
1275 /***********************************************************************
1277 ***********************************************************************/
1279 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1280 RGB_LIST should contain (at least) 3 lisp integers.
1281 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1284 parse_rgb_list (rgb_list
, color
)
1285 Lisp_Object rgb_list
;
1288 #define PARSE_RGB_LIST_FIELD(field) \
1289 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1291 color->field = XINT (XCAR (rgb_list)); \
1292 rgb_list = XCDR (rgb_list); \
1297 PARSE_RGB_LIST_FIELD (red
);
1298 PARSE_RGB_LIST_FIELD (green
);
1299 PARSE_RGB_LIST_FIELD (blue
);
1305 /* Lookup on frame F the color described by the lisp string COLOR.
1306 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1307 non-zero, then the `standard' definition of the same color is
1311 tty_lookup_color (f
, color
, tty_color
, std_color
)
1314 XColor
*tty_color
, *std_color
;
1316 Lisp_Object frame
, color_desc
;
1318 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1321 XSETFRAME (frame
, f
);
1323 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1324 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1328 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1331 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1333 rgb
= XCDR (XCDR (color_desc
));
1334 if (! parse_rgb_list (rgb
, tty_color
))
1337 /* Should we fill in STD_COLOR too? */
1340 /* Default STD_COLOR to the same as TTY_COLOR. */
1341 *std_color
= *tty_color
;
1343 /* Do a quick check to see if the returned descriptor is
1344 actually _exactly_ equal to COLOR, otherwise we have to
1345 lookup STD_COLOR separately. If it's impossible to lookup
1346 a standard color, we just give up and use TTY_COLOR. */
1347 if ((!STRINGP (XCAR (color_desc
))
1348 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1349 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1351 /* Look up STD_COLOR separately. */
1352 rgb
= call1 (Qtty_color_standard_values
, color
);
1353 if (! parse_rgb_list (rgb
, std_color
))
1360 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1361 /* We were called early during startup, and the colors are not
1362 yet set up in tty-defined-color-alist. Don't return a failure
1363 indication, since this produces the annoying "Unable to
1364 load color" messages in the *Messages* buffer. */
1367 /* tty-color-desc seems to have returned a bad value. */
1371 /* A version of defined_color for non-X frames. */
1374 tty_defined_color (f
, color_name
, color_def
, alloc
)
1383 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1385 color_def
->blue
= 0;
1386 color_def
->green
= 0;
1389 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, NULL
);
1391 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1393 if (strcmp (color_name
, "unspecified-fg") == 0)
1394 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1395 else if (strcmp (color_name
, "unspecified-bg") == 0)
1396 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1399 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1406 /* Decide if color named COLOR_NAME is valid for the display
1407 associated with the frame F; if so, return the rgb values in
1408 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1410 This does the right thing for any type of frame. */
1413 defined_color (f
, color_name
, color_def
, alloc
)
1419 if (!FRAME_WINDOW_P (f
))
1420 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1421 #ifdef HAVE_X_WINDOWS
1422 else if (FRAME_X_P (f
))
1423 return x_defined_color (f
, color_name
, color_def
, alloc
);
1426 else if (FRAME_W32_P (f
))
1427 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1430 else if (FRAME_MAC_P (f
))
1431 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1438 /* Given the index IDX of a tty color on frame F, return its name, a
1442 tty_color_name (f
, idx
)
1446 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1449 Lisp_Object coldesc
;
1451 XSETFRAME (frame
, f
);
1452 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1454 if (!NILP (coldesc
))
1455 return XCAR (coldesc
);
1458 /* We can have an MSDOG frame under -nw for a short window of
1459 opportunity before internal_terminal_init is called. DTRT. */
1460 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1461 return msdos_stdcolor_name (idx
);
1464 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1465 return build_string (unspecified_fg
);
1466 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1467 return build_string (unspecified_bg
);
1470 return vga_stdcolor_name (idx
);
1473 return Qunspecified
;
1477 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1480 The criterion implemented here is not a terribly sophisticated one. */
1483 face_color_gray_p (f
, color_name
)
1490 if (defined_color (f
, color_name
, &color
, 0))
1491 gray_p
= (/* Any color sufficiently close to black counts as grey. */
1492 (color
.red
< 5000 && color
.green
< 5000 && color
.blue
< 5000)
1494 ((abs (color
.red
- color
.green
)
1495 < max (color
.red
, color
.green
) / 20)
1496 && (abs (color
.green
- color
.blue
)
1497 < max (color
.green
, color
.blue
) / 20)
1498 && (abs (color
.blue
- color
.red
)
1499 < max (color
.blue
, color
.red
) / 20)));
1507 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1508 BACKGROUND_P non-zero means the color will be used as background
1512 face_color_supported_p (f
, color_name
, background_p
)
1520 XSETFRAME (frame
, f
);
1522 #ifdef HAVE_WINDOW_SYSTEM
1524 ? (!NILP (Fxw_display_color_p (frame
))
1525 || xstricmp (color_name
, "black") == 0
1526 || xstricmp (color_name
, "white") == 0
1528 && face_color_gray_p (f
, color_name
))
1529 || (!NILP (Fx_display_grayscale_p (frame
))
1530 && face_color_gray_p (f
, color_name
)))
1533 tty_defined_color (f
, color_name
, ¬_used
, 0);
1537 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1538 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1539 FRAME specifies the frame and thus the display for interpreting COLOR.
1540 If FRAME is nil or omitted, use the selected frame. */)
1542 Lisp_Object color
, frame
;
1546 CHECK_STRING (color
);
1548 frame
= selected_frame
;
1550 CHECK_FRAME (frame
);
1552 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1556 DEFUN ("color-supported-p", Fcolor_supported_p
,
1557 Scolor_supported_p
, 1, 3, 0,
1558 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1559 BACKGROUND-P non-nil means COLOR is used as a background.
1560 Otherwise, this function tells whether it can be used as a foreground.
1561 If FRAME is nil or omitted, use the selected frame.
1562 COLOR must be a valid color name. */)
1563 (color
, frame
, background_p
)
1564 Lisp_Object frame
, color
, background_p
;
1568 CHECK_STRING (color
);
1570 frame
= selected_frame
;
1572 CHECK_FRAME (frame
);
1574 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1580 /* Load color with name NAME for use by face FACE on frame F.
1581 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1582 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1583 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1584 pixel color. If color cannot be loaded, display a message, and
1585 return the foreground, background or underline color of F, but
1586 record that fact in flags of the face so that we don't try to free
1590 load_color (f
, face
, name
, target_index
)
1594 enum lface_attribute_index target_index
;
1598 xassert (STRINGP (name
));
1599 xassert (target_index
== LFACE_FOREGROUND_INDEX
1600 || target_index
== LFACE_BACKGROUND_INDEX
1601 || target_index
== LFACE_UNDERLINE_INDEX
1602 || target_index
== LFACE_OVERLINE_INDEX
1603 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1604 || target_index
== LFACE_BOX_INDEX
);
1606 /* if the color map is full, defined_color will return a best match
1607 to the values in an existing cell. */
1608 if (!defined_color (f
, SDATA (name
), &color
, 1))
1610 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1612 switch (target_index
)
1614 case LFACE_FOREGROUND_INDEX
:
1615 face
->foreground_defaulted_p
= 1;
1616 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1619 case LFACE_BACKGROUND_INDEX
:
1620 face
->background_defaulted_p
= 1;
1621 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1624 case LFACE_UNDERLINE_INDEX
:
1625 face
->underline_defaulted_p
= 1;
1626 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1629 case LFACE_OVERLINE_INDEX
:
1630 face
->overline_color_defaulted_p
= 1;
1631 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1634 case LFACE_STRIKE_THROUGH_INDEX
:
1635 face
->strike_through_color_defaulted_p
= 1;
1636 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1639 case LFACE_BOX_INDEX
:
1640 face
->box_color_defaulted_p
= 1;
1641 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1650 ++ncolors_allocated
;
1657 #ifdef HAVE_WINDOW_SYSTEM
1659 /* Load colors for face FACE which is used on frame F. Colors are
1660 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1661 of ATTRS. If the background color specified is not supported on F,
1662 try to emulate gray colors with a stipple from Vface_default_stipple. */
1665 load_face_colors (f
, face
, attrs
)
1672 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1673 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1675 /* Swap colors if face is inverse-video. */
1676 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1684 /* Check for support for foreground, not for background because
1685 face_color_supported_p is smart enough to know that grays are
1686 "supported" as background because we are supposed to use stipple
1688 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1689 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1691 x_destroy_bitmap (f
, face
->stipple
);
1692 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1693 &face
->pixmap_w
, &face
->pixmap_h
);
1696 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1697 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1701 /* Free color PIXEL on frame F. */
1704 unload_color (f
, pixel
)
1706 unsigned long pixel
;
1708 #ifdef HAVE_X_WINDOWS
1712 x_free_colors (f
, &pixel
, 1);
1719 /* Free colors allocated for FACE. */
1722 free_face_colors (f
, face
)
1726 #ifdef HAVE_X_WINDOWS
1727 if (face
->colors_copied_bitwise_p
)
1732 if (!face
->foreground_defaulted_p
)
1734 x_free_colors (f
, &face
->foreground
, 1);
1735 IF_DEBUG (--ncolors_allocated
);
1738 if (!face
->background_defaulted_p
)
1740 x_free_colors (f
, &face
->background
, 1);
1741 IF_DEBUG (--ncolors_allocated
);
1744 if (face
->underline_p
1745 && !face
->underline_defaulted_p
)
1747 x_free_colors (f
, &face
->underline_color
, 1);
1748 IF_DEBUG (--ncolors_allocated
);
1751 if (face
->overline_p
1752 && !face
->overline_color_defaulted_p
)
1754 x_free_colors (f
, &face
->overline_color
, 1);
1755 IF_DEBUG (--ncolors_allocated
);
1758 if (face
->strike_through_p
1759 && !face
->strike_through_color_defaulted_p
)
1761 x_free_colors (f
, &face
->strike_through_color
, 1);
1762 IF_DEBUG (--ncolors_allocated
);
1765 if (face
->box
!= FACE_NO_BOX
1766 && !face
->box_color_defaulted_p
)
1768 x_free_colors (f
, &face
->box_color
, 1);
1769 IF_DEBUG (--ncolors_allocated
);
1773 #endif /* HAVE_X_WINDOWS */
1776 #endif /* HAVE_WINDOW_SYSTEM */
1780 /***********************************************************************
1782 ***********************************************************************/
1784 /* An enumerator for each field of an XLFD font name. */
1805 /* An enumerator for each possible slant value of a font. Taken from
1806 the XLFD specification. */
1814 XLFD_SLANT_REVERSE_ITALIC
,
1815 XLFD_SLANT_REVERSE_OBLIQUE
,
1819 /* Relative font weight according to XLFD documentation. */
1823 XLFD_WEIGHT_UNKNOWN
,
1824 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1825 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1826 XLFD_WEIGHT_LIGHT
, /* 30 */
1827 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1828 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1829 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1830 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1831 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1832 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1835 /* Relative proportionate width. */
1839 XLFD_SWIDTH_UNKNOWN
,
1840 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1841 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1842 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1843 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1844 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1845 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1846 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1847 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1848 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1851 /* Structure used for tables mapping XLFD weight, slant, and width
1852 names to numeric and symbolic values. */
1858 Lisp_Object
*symbol
;
1861 /* Table of XLFD slant names and their numeric and symbolic
1862 representations. This table must be sorted by slant names in
1865 static struct table_entry slant_table
[] =
1867 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1868 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1869 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1870 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1871 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1872 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1875 /* Table of XLFD weight names. This table must be sorted by weight
1876 names in ascending order. */
1878 static struct table_entry weight_table
[] =
1880 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1881 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1882 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1883 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1884 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1885 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1886 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1887 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1888 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1889 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1890 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1891 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1892 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1893 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1894 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1895 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1898 /* Table of XLFD width names. This table must be sorted by width
1899 names in ascending order. */
1901 static struct table_entry swidth_table
[] =
1903 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1904 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1905 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1906 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1907 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1908 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1909 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1910 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1911 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1912 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1913 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1914 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1915 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1916 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1917 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1920 /* Structure used to hold the result of splitting font names in XLFD
1921 format into their fields. */
1925 /* The original name which is modified destructively by
1926 split_font_name. The pointer is kept here to be able to free it
1927 if it was allocated from the heap. */
1930 /* Font name fields. Each vector element points into `name' above.
1931 Fields are NUL-terminated. */
1932 char *fields
[XLFD_LAST
];
1934 /* Numeric values for those fields that interest us. See
1935 split_font_name for which these are. */
1936 int numeric
[XLFD_LAST
];
1938 /* If the original name matches one of Vface_font_rescale_alist,
1939 the value is the corresponding rescale ratio. Otherwise, the
1941 double rescale_ratio
;
1943 /* Lower value mean higher priority. */
1944 int registry_priority
;
1947 /* The frame in effect when sorting font names. Set temporarily in
1948 sort_fonts so that it is available in font comparison functions. */
1950 static struct frame
*font_frame
;
1952 /* Order by which font selection chooses fonts. The default values
1953 mean `first, find a best match for the font width, then for the
1954 font height, then for weight, then for slant.' This variable can be
1955 set via set-face-font-sort-order. */
1958 static int font_sort_order
[4] = {
1959 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1962 static int font_sort_order
[4];
1965 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1966 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1967 is a pointer to the matching table entry or null if no table entry
1970 static struct table_entry
*
1971 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1972 struct table_entry
*table
;
1974 struct font_name
*font
;
1977 /* Function split_font_name converts fields to lower-case, so there
1978 is no need to use xstrlwr or xstricmp here. */
1979 char *s
= font
->fields
[field_index
];
1980 int low
, mid
, high
, cmp
;
1987 mid
= (low
+ high
) / 2;
1988 cmp
= strcmp (table
[mid
].name
, s
);
2002 /* Return a numeric representation for font name field
2003 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2004 has DIM entries. Value is the numeric value found or DFLT if no
2005 table entry matches. This function is used to translate weight,
2006 slant, and swidth names of XLFD font names to numeric values. */
2009 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
2010 struct table_entry
*table
;
2012 struct font_name
*font
;
2016 struct table_entry
*p
;
2017 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2018 return p
? p
->numeric
: dflt
;
2022 /* Return a symbolic representation for font name field
2023 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2024 has DIM entries. Value is the symbolic value found or DFLT if no
2025 table entry matches. This function is used to translate weight,
2026 slant, and swidth names of XLFD font names to symbols. */
2028 static INLINE Lisp_Object
2029 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2030 struct table_entry
*table
;
2032 struct font_name
*font
;
2036 struct table_entry
*p
;
2037 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2038 return p
? *p
->symbol
: dflt
;
2042 /* Return a numeric value for the slant of the font given by FONT. */
2045 xlfd_numeric_slant (font
)
2046 struct font_name
*font
;
2048 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2049 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2053 /* Return a symbol representing the weight of the font given by FONT. */
2055 static INLINE Lisp_Object
2056 xlfd_symbolic_slant (font
)
2057 struct font_name
*font
;
2059 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2060 font
, XLFD_SLANT
, Qnormal
);
2064 /* Return a numeric value for the weight of the font given by FONT. */
2067 xlfd_numeric_weight (font
)
2068 struct font_name
*font
;
2070 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2071 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2075 /* Return a symbol representing the slant of the font given by FONT. */
2077 static INLINE Lisp_Object
2078 xlfd_symbolic_weight (font
)
2079 struct font_name
*font
;
2081 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2082 font
, XLFD_WEIGHT
, Qnormal
);
2086 /* Return a numeric value for the swidth of the font whose XLFD font
2087 name fields are found in FONT. */
2090 xlfd_numeric_swidth (font
)
2091 struct font_name
*font
;
2093 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2094 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2098 /* Return a symbolic value for the swidth of FONT. */
2100 static INLINE Lisp_Object
2101 xlfd_symbolic_swidth (font
)
2102 struct font_name
*font
;
2104 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2105 font
, XLFD_SWIDTH
, Qnormal
);
2109 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2110 entries. Value is a pointer to the matching table entry or null if
2111 no element of TABLE contains SYMBOL. */
2113 static struct table_entry
*
2114 face_value (table
, dim
, symbol
)
2115 struct table_entry
*table
;
2121 xassert (SYMBOLP (symbol
));
2123 for (i
= 0; i
< dim
; ++i
)
2124 if (EQ (*table
[i
].symbol
, symbol
))
2127 return i
< dim
? table
+ i
: NULL
;
2131 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2132 entries. Value is -1 if SYMBOL is not found in TABLE. */
2135 face_numeric_value (table
, dim
, symbol
)
2136 struct table_entry
*table
;
2140 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2141 return p
? p
->numeric
: -1;
2145 /* Return a numeric value representing the weight specified by Lisp
2146 symbol WEIGHT. Value is one of the enumerators of enum
2150 face_numeric_weight (weight
)
2153 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2157 /* Return a numeric value representing the slant specified by Lisp
2158 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2161 face_numeric_slant (slant
)
2164 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2168 /* Return a numeric value representing the swidth specified by Lisp
2169 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2172 face_numeric_swidth (width
)
2175 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2178 #ifdef HAVE_WINDOW_SYSTEM
2181 split_font_name_into_vector (fontname
)
2182 Lisp_Object fontname
;
2184 struct font_name font
;
2188 font
.name
= LSTRDUPA (fontname
);
2189 if (! split_font_name (NULL
, &font
, 0))
2191 vec
= Fmake_vector (make_number (XLFD_LAST
), Qnil
);
2192 for (i
= 0; i
< XLFD_LAST
; i
++)
2193 if (font
.fields
[i
][0] != '*')
2194 ASET (vec
, i
, build_string (font
.fields
[i
]));
2199 build_font_name_from_vector (vec
)
2202 struct font_name font
;
2203 Lisp_Object fontname
;
2207 for (i
= 0; i
< XLFD_LAST
; i
++)
2209 font
.fields
[i
] = (NILP (AREF (vec
, i
))
2210 ? "*" : (char *) SDATA (AREF (vec
, i
)));
2211 if ((i
== XLFD_FAMILY
|| i
== XLFD_REGISTRY
)
2212 && (p
= strchr (font
.fields
[i
], '-')))
2214 char *p1
= STRDUPA (font
.fields
[i
]);
2216 p1
[p
- font
.fields
[i
]] = '\0';
2217 if (i
== XLFD_FAMILY
)
2219 font
.fields
[XLFD_FOUNDRY
] = p1
;
2220 font
.fields
[XLFD_FAMILY
] = p
+ 1;
2224 font
.fields
[XLFD_REGISTRY
] = p1
;
2225 font
.fields
[XLFD_ENCODING
] = p
+ 1;
2231 p
= build_font_name (&font
);
2232 fontname
= build_string (p
);
2237 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2241 struct font_name
*font
;
2243 /* Function split_font_name converts fields to lower-case, so there
2244 is no need to use tolower here. */
2245 return *font
->fields
[XLFD_SPACING
] != 'p';
2249 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2251 The actual height of the font when displayed on F depends on the
2252 resolution of both the font and frame. For example, a 10pt font
2253 designed for a 100dpi display will display larger than 10pt on a
2254 75dpi display. (It's not unusual to use fonts not designed for the
2255 display one is using. For example, some intlfonts are available in
2256 72dpi versions, only.)
2258 Value is the real point size of FONT on frame F, or 0 if it cannot
2261 By side effect, set FONT->numeric[XLFD_PIXEL_SIZE]. */
2264 xlfd_point_size (f
, font
)
2266 struct font_name
*font
;
2268 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2269 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2273 if (*pixel_field
== '[')
2275 /* The pixel size field is `[A B C D]' which specifies
2276 a transformation matrix.
2282 by which all glyphs of the font are transformed. The spec
2283 says that s scalar value N for the pixel size is equivalent
2284 to A = N * resx/resy, B = C = 0, D = N. */
2285 char *start
= pixel_field
+ 1, *end
;
2289 for (i
= 0; i
< 4; ++i
)
2291 matrix
[i
] = strtod (start
, &end
);
2298 pixel
= atoi (pixel_field
);
2300 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel
;
2304 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2310 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2311 of frame F. This function is used to guess a point size of font
2312 when only the pixel height of the font is available. */
2315 pixel_point_size (f
, pixel
)
2319 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2323 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2324 point size of one dot. */
2325 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2326 int_pt
= real_pt
+ 0.5;
2332 /* Return a rescaling ratio of a font of NAME. */
2335 font_rescale_ratio (name
)
2338 Lisp_Object tail
, elt
;
2340 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2343 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2344 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2345 return XFLOAT_DATA (XCDR (elt
));
2351 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2352 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2353 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2354 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2355 zero if the font name doesn't have the format we expect. The
2356 expected format is a font name that starts with a `-' and has
2357 XLFD_LAST fields separated by `-'. */
2360 split_font_name (f
, font
, numeric_p
)
2362 struct font_name
*font
;
2367 double rescale_ratio
;
2370 /* This must be done before splitting the font name. */
2371 rescale_ratio
= font_rescale_ratio (font
->name
);
2373 if (*font
->name
== '-')
2375 char *p
= xstrlwr (font
->name
) + 1;
2377 while (i
< XLFD_LAST
)
2379 font
->fields
[i
] = p
;
2382 /* Pixel and point size may be of the form `[....]'. For
2383 BNF, see XLFD spec, chapter 4. Negative values are
2384 indicated by tilde characters which we replace with
2385 `-' characters, here. */
2387 && (i
- 1 == XLFD_PIXEL_SIZE
2388 || i
- 1 == XLFD_POINT_SIZE
))
2393 for (++p
; *p
&& *p
!= ']'; ++p
)
2397 /* Check that the matrix contains 4 floating point
2399 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2402 if (strtod (start
, &end
) == 0 && start
== end
)
2409 while (*p
&& *p
!= '-')
2419 success_p
= i
== XLFD_LAST
;
2421 /* If requested, and font name was in the expected format,
2422 compute numeric values for some fields. */
2423 if (numeric_p
&& success_p
)
2425 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2426 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2427 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2428 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2429 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2430 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2431 font
->rescale_ratio
= rescale_ratio
;
2434 /* Initialize it to zero. It will be overridden by font_list while
2435 trying alternate registries. */
2436 font
->registry_priority
= 0;
2442 /* Build an XLFD font name from font name fields in FONT. Value is a
2443 pointer to the font name, which is allocated via xmalloc. */
2446 build_font_name (font
)
2447 struct font_name
*font
;
2451 char *font_name
= (char *) xmalloc (size
);
2452 int total_length
= 0;
2454 for (i
= 0; i
< XLFD_LAST
; ++i
)
2456 /* Add 1 because of the leading `-'. */
2457 int len
= strlen (font
->fields
[i
]) + 1;
2459 /* Reallocate font_name if necessary. Add 1 for the final
2461 if (total_length
+ len
+ 1 >= size
)
2463 int new_size
= max (2 * size
, size
+ len
+ 1);
2464 int sz
= new_size
* sizeof *font_name
;
2465 font_name
= (char *) xrealloc (font_name
, sz
);
2469 font_name
[total_length
] = '-';
2470 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2471 total_length
+= len
;
2474 font_name
[total_length
] = 0;
2479 /* Free an array FONTS of N font_name structures. This frees FONTS
2480 itself and all `name' fields in its elements. */
2483 free_font_names (fonts
, n
)
2484 struct font_name
*fonts
;
2488 xfree (fonts
[--n
].name
);
2493 /* Sort vector FONTS of font_name structures which contains NFONTS
2494 elements using qsort and comparison function CMPFN. F is the frame
2495 on which the fonts will be used. The global variable font_frame
2496 is temporarily set to F to make it available in CMPFN. */
2499 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2501 struct font_name
*fonts
;
2503 int (*cmpfn
) P_ ((const void *, const void *));
2506 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2511 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2512 display in x_display_list. FONTS is a pointer to a vector of
2513 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2514 alternative patterns from Valternate_fontname_alist if no fonts are
2515 found matching PATTERN.
2517 For all fonts found, set FONTS[i].name to the name of the font,
2518 allocated via xmalloc, and split font names into fields. Ignore
2519 fonts that we can't parse. Value is the number of fonts found. */
2522 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2525 struct font_name
**pfonts
;
2526 int nfonts
, try_alternatives_p
;
2530 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2531 better to do it the other way around. */
2533 Lisp_Object lpattern
, tem
;
2534 struct font_name
*fonts
= 0;
2535 int num_fonts
= nfonts
;
2538 lpattern
= build_string (pattern
);
2540 /* Get the list of fonts matching PATTERN. */
2543 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2546 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2549 if (nfonts
< 0 && CONSP (lfonts
))
2550 num_fonts
= XFASTINT (Flength (lfonts
));
2552 /* Make a copy of the font names we got from X, and
2553 split them into fields. */
2555 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2557 Lisp_Object elt
, tail
;
2558 const char *name
= SDATA (XCAR (tem
));
2560 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2561 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2565 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2576 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2580 /* Make a copy of the font name. */
2581 fonts
[n
].name
= xstrdup (name
);
2583 if (split_font_name (f
, fonts
+ n
, 1))
2585 if (font_scalable_p (fonts
+ n
)
2586 && !may_use_scalable_font_p (name
))
2589 xfree (fonts
[n
].name
);
2595 xfree (fonts
[n
].name
);
2598 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2599 if (n
== 0 && try_alternatives_p
)
2601 Lisp_Object list
= Valternate_fontname_alist
;
2609 while (CONSP (list
))
2611 Lisp_Object entry
= XCAR (list
);
2613 && STRINGP (XCAR (entry
))
2614 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2621 Lisp_Object patterns
= XCAR (list
);
2624 while (CONSP (patterns
)
2625 /* If list is screwed up, give up. */
2626 && (name
= XCAR (patterns
),
2628 /* Ignore patterns equal to PATTERN because we tried that
2629 already with no success. */
2630 && (strcmp (SDATA (name
), pattern
) == 0
2631 || (n
= x_face_list_fonts (f
, SDATA (name
),
2634 patterns
= XCDR (patterns
);
2642 /* Check if a font matching pattern_offset_t on frame F is available
2643 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2644 a font name pattern is generated from FAMILY and REGISTRY. */
2647 face_font_available_p (f
, pattern
)
2649 Lisp_Object pattern
;
2653 if (! STRINGP (pattern
))
2655 Lisp_Object family
, registry
;
2656 char *family_str
, *registry_str
, *pattern_str
;
2658 CHECK_CONS (pattern
);
2659 family
= XCAR (pattern
);
2664 CHECK_STRING (family
);
2665 family_str
= (char *) SDATA (family
);
2667 registry
= XCDR (pattern
);
2668 if (NILP (registry
))
2672 CHECK_STRING (registry
);
2673 registry_str
= (char *) SDATA (registry
);
2676 pattern_str
= (char *) alloca (strlen (family_str
)
2677 + strlen (registry_str
)
2679 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2680 strcat (pattern_str
, family_str
);
2681 strcat (pattern_str
, "-*-");
2682 strcat (pattern_str
, registry_str
);
2683 if (!index (registry_str
, '-'))
2685 if (registry_str
[strlen (registry_str
) - 1] == '*')
2686 strcat (pattern_str
, "-*");
2688 strcat (pattern_str
, "*-*");
2690 pattern
= build_string (pattern_str
);
2693 /* Get the list of fonts matching PATTERN. */
2696 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2699 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2701 return XINT (Flength (fonts
));
2705 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2706 using comparison function CMPFN. Value is the number of fonts
2707 found. If value is non-zero, *FONTS is set to a vector of
2708 font_name structures allocated from the heap containing matching
2709 fonts. Each element of *FONTS contains a name member that is also
2710 allocated from the heap. Font names in these structures are split
2711 into fields. Use free_font_names to free such an array. */
2714 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2717 int (*cmpfn
) P_ ((const void *, const void *));
2718 struct font_name
**fonts
;
2722 /* Get the list of fonts matching pattern. 100 should suffice. */
2723 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2724 if (INTEGERP (Vfont_list_limit
))
2725 nfonts
= XINT (Vfont_list_limit
);
2728 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2730 /* Sort the resulting array and return it in *FONTS. If no
2731 fonts were found, make sure to set *FONTS to null. */
2733 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2744 /* Compare two font_name structures *A and *B. Value is analogous to
2745 strcmp. Sort order is given by the global variable
2746 font_sort_order. Font names are sorted so that, everything else
2747 being equal, fonts with a resolution closer to that of the frame on
2748 which they are used are listed first. The global variable
2749 font_frame is the frame on which we operate. */
2752 cmp_font_names (a
, b
)
2755 struct font_name
*x
= (struct font_name
*) a
;
2756 struct font_name
*y
= (struct font_name
*) b
;
2759 /* All strings have been converted to lower-case by split_font_name,
2760 so we can use strcmp here. */
2761 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2766 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2768 int j
= font_sort_order
[i
];
2769 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2774 /* Everything else being equal, we prefer fonts with an
2775 y-resolution closer to that of the frame. */
2776 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2777 int x_resy
= x
->numeric
[XLFD_RESY
];
2778 int y_resy
= y
->numeric
[XLFD_RESY
];
2779 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2787 /* Get a sorted list of fonts matching PATTERN on frame F. If PATTERN
2788 is nil, list fonts matching FAMILY and REGISTRY. FAMILY is a
2789 family name string or nil. REGISTRY is a registry name string.
2790 Set *FONTS to a vector of font_name structures allocated from the
2791 heap containing the fonts found. Value is the number of fonts
2795 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2797 Lisp_Object pattern
, family
, registry
;
2798 struct font_name
**fonts
;
2800 char *pattern_str
, *family_str
, *registry_str
;
2804 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2805 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2807 pattern_str
= (char *) alloca (strlen (family_str
)
2808 + strlen (registry_str
)
2810 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2811 strcat (pattern_str
, family_str
);
2812 strcat (pattern_str
, "-*-");
2813 strcat (pattern_str
, registry_str
);
2814 if (!index (registry_str
, '-'))
2816 if (registry_str
[strlen (registry_str
) - 1] == '*')
2817 strcat (pattern_str
, "-*");
2819 strcat (pattern_str
, "*-*");
2823 pattern_str
= (char *) SDATA (pattern
);
2825 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2829 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2830 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2831 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2834 static struct font_name
*
2835 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2836 struct font_name
*fonts1
, *fonts2
;
2837 int nfonts1
, nfonts2
;
2839 int new_nfonts
= nfonts1
+ nfonts2
;
2840 struct font_name
*new_fonts
;
2842 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2843 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2844 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2851 /* Get a sorted list of fonts of family FAMILY on frame F.
2853 If PATTERN is non-nil, list fonts matching that pattern.
2855 If REGISTRY is non-nil, it is a list of registry (and encoding)
2856 names. Return fonts with those registries and the alternative
2857 registries from Vface_alternative_font_registry_alist.
2859 If REGISTRY is nil return fonts of any registry.
2861 Set *FONTS to a vector of font_name structures allocated from the
2862 heap containing the fonts found. Value is the number of fonts
2866 font_list (f
, pattern
, family
, registry
, fonts
)
2868 Lisp_Object pattern
, family
, registry
;
2869 struct font_name
**fonts
;
2875 if (NILP (registry
))
2876 return font_list_1 (f
, pattern
, family
, registry
, fonts
);
2878 for (reg_prio
= 0, nfonts
= 0; CONSP (registry
); registry
= XCDR (registry
))
2880 Lisp_Object elt
, alter
;
2882 struct font_name
*fonts2
;
2884 elt
= XCAR (registry
);
2885 alter
= Fassoc (elt
, Vface_alternative_font_registry_alist
);
2887 alter
= Fcons (elt
, Qnil
);
2888 for (; CONSP (alter
); alter
= XCDR (alter
), reg_prio
++)
2890 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
), &fonts2
);
2894 for (i
= 0; i
< nfonts2
; i
++)
2895 fonts2
[i
].registry_priority
= reg_prio
;
2897 *fonts
= concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
);
2909 /* Remove elements from LIST whose cars are `equal'. Called from
2910 x-family-fonts and x-font-family-list to remove duplicate font
2914 remove_duplicates (list
)
2917 Lisp_Object tail
= list
;
2919 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2921 Lisp_Object next
= XCDR (tail
);
2922 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2923 XSETCDR (tail
, XCDR (next
));
2930 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2931 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2932 If FAMILY is omitted or nil, list all families.
2933 Otherwise, FAMILY must be a string, possibly containing wildcards
2935 If FRAME is omitted or nil, use the selected frame.
2936 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2937 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2938 FAMILY is the font family name. POINT-SIZE is the size of the
2939 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2940 width, weight and slant of the font. These symbols are the same as for
2941 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2942 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2943 giving the registry and encoding of the font.
2944 The result list is sorted according to the current setting of
2945 the face font sort order. */)
2947 Lisp_Object family
, frame
;
2949 struct frame
*f
= check_x_frame (frame
);
2950 struct font_name
*fonts
;
2953 struct gcpro gcpro1
;
2956 CHECK_STRING (family
);
2960 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2961 for (i
= nfonts
- 1; i
>= 0; --i
)
2963 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2966 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2967 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2968 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2969 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2970 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2971 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2972 tem
= build_font_name (fonts
+ i
);
2973 ASET (v
, 6, build_string (tem
));
2974 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2975 fonts
[i
].fields
[XLFD_ENCODING
]);
2976 ASET (v
, 7, build_string (tem
));
2979 result
= Fcons (v
, result
);
2982 remove_duplicates (result
);
2983 free_font_names (fonts
, nfonts
);
2989 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2991 doc
: /* Return a list of available font families on FRAME.
2992 If FRAME is omitted or nil, use the selected frame.
2993 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2994 is a font family, and FIXED-P is non-nil if fonts of that family
2995 are fixed-pitch. */)
2999 struct frame
*f
= check_x_frame (frame
);
3001 struct font_name
*fonts
;
3003 struct gcpro gcpro1
;
3004 int count
= SPECPDL_INDEX ();
3006 /* Let's consider all fonts. */
3007 specbind (intern ("font-list-limit"), make_number (-1));
3008 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
3012 for (i
= nfonts
- 1; i
>= 0; --i
)
3013 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
3014 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
3017 remove_duplicates (result
);
3018 free_font_names (fonts
, nfonts
);
3020 return unbind_to (count
, result
);
3024 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
3025 doc
: /* Return a list of the names of available fonts matching PATTERN.
3026 If optional arguments FACE and FRAME are specified, return only fonts
3027 the same size as FACE on FRAME.
3028 PATTERN is a string, perhaps with wildcard characters;
3029 the * character matches any substring, and
3030 the ? character matches any single character.
3031 PATTERN is case-insensitive.
3032 FACE is a face name--a symbol.
3034 The return value is a list of strings, suitable as arguments to
3037 Fonts Emacs can't use may or may not be excluded
3038 even if they match PATTERN and FACE.
3039 The optional fourth argument MAXIMUM sets a limit on how many
3040 fonts to match. The first MAXIMUM fonts are reported.
3041 The optional fifth argument WIDTH, if specified, is a number of columns
3042 occupied by a character of a font. In that case, return only fonts
3043 the WIDTH times as wide as FACE on FRAME. */)
3044 (pattern
, face
, frame
, maximum
, width
)
3045 Lisp_Object pattern
, face
, frame
, maximum
, width
;
3052 CHECK_STRING (pattern
);
3058 CHECK_NATNUM (maximum
);
3059 maxnames
= XINT (maximum
);
3063 CHECK_NUMBER (width
);
3065 /* We can't simply call check_x_frame because this function may be
3066 called before any frame is created. */
3067 f
= frame_or_selected_frame (frame
, 2);
3068 if (!FRAME_WINDOW_P (f
))
3070 /* Perhaps we have not yet created any frame. */
3075 /* Determine the width standard for comparison with the fonts we find. */
3081 /* This is of limited utility since it works with character
3082 widths. Keep it for compatibility. --gerd. */
3083 int face_id
= lookup_named_face (f
, face
, 0);
3084 struct face
*face
= (face_id
< 0
3086 : FACE_FROM_ID (f
, face_id
));
3089 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3090 not maximum as on X. Redefine here. */
3092 #define FONT_WIDTH FONT_MAX_WIDTH
3095 if (face
&& face
->font
)
3096 size
= FONT_WIDTH (face
->font
);
3098 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3101 size
*= XINT (width
);
3105 Lisp_Object args
[2];
3107 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3109 /* We don't have to check fontsets. */
3111 args
[1] = list_fontsets (f
, pattern
, size
);
3112 return Fnconc (2, args
);
3116 #endif /* HAVE_WINDOW_SYSTEM */
3120 /***********************************************************************
3122 ***********************************************************************/
3124 /* Access face attributes of face LFACE, a Lisp vector. */
3126 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3127 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3128 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3129 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3130 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3131 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3132 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3133 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3134 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3135 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3136 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3137 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3138 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3139 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3140 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3141 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3142 #define LFACE_FONTSET(LFACE) AREF ((LFACE), LFACE_FONTSET_INDEX)
3144 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3145 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3147 #define LFACEP(LFACE) \
3149 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3150 && EQ (AREF (LFACE, 0), Qface))
3155 /* Check consistency of Lisp face attribute vector ATTRS. */
3158 check_lface_attrs (attrs
)
3161 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3162 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3163 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3164 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3165 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3166 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3167 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3168 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3169 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3170 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3171 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3172 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3173 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3174 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3175 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3176 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3177 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3178 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3179 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3180 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3181 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3182 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3183 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3184 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3185 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3186 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3187 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3188 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3189 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3190 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3191 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3192 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3193 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3194 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3195 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3196 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3197 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3198 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3199 #ifdef HAVE_WINDOW_SYSTEM
3200 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3201 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3202 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3203 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3204 || NILP (attrs
[LFACE_FONT_INDEX
])
3205 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3206 xassert (UNSPECIFIEDP (attrs
[LFACE_FONTSET_INDEX
])
3207 || STRINGP (attrs
[LFACE_FONTSET_INDEX
]));
3212 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3220 xassert (LFACEP (lface
));
3221 check_lface_attrs (XVECTOR (lface
)->contents
);
3225 #else /* GLYPH_DEBUG == 0 */
3227 #define check_lface_attrs(attrs) (void) 0
3228 #define check_lface(lface) (void) 0
3230 #endif /* GLYPH_DEBUG == 0 */
3234 /* Face-merge cycle checking. */
3236 /* A `named merge point' is simply a point during face-merging where we
3237 look up a face by name. We keep a stack of which named lookups we're
3238 currently processing so that we can easily detect cycles, using a
3239 linked- list of struct named_merge_point structures, typically
3240 allocated on the stack frame of the named lookup functions which are
3241 active (so no consing is required). */
3242 struct named_merge_point
3244 Lisp_Object face_name
;
3245 struct named_merge_point
*prev
;
3249 /* If a face merging cycle is detected for FACE_NAME, return 0,
3250 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3251 FACE_NAME, as the head of the linked list pointed to by
3252 NAMED_MERGE_POINTS, and return 1. */
3255 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3256 Lisp_Object face_name
,
3257 struct named_merge_point
**named_merge_points
)
3259 struct named_merge_point
*prev
;
3261 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3262 if (EQ (face_name
, prev
->face_name
))
3265 new_named_merge_point
->face_name
= face_name
;
3266 new_named_merge_point
->prev
= *named_merge_points
;
3268 *named_merge_points
= new_named_merge_point
;
3276 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3277 to make it a symbol. If FACE_NAME is an alias for another face,
3278 return that face's name.
3280 Return default face in case of errors. */
3283 resolve_face_name (face_name
, signal_p
)
3284 Lisp_Object face_name
;
3287 Lisp_Object orig_face
;
3288 Lisp_Object tortoise
, hare
;
3290 if (STRINGP (face_name
))
3291 face_name
= intern (SDATA (face_name
));
3293 if (NILP (face_name
) || !SYMBOLP (face_name
))
3296 orig_face
= face_name
;
3297 tortoise
= hare
= face_name
;
3302 hare
= Fget (hare
, Qface_alias
);
3303 if (NILP (hare
) || !SYMBOLP (hare
))
3307 hare
= Fget (hare
, Qface_alias
);
3308 if (NILP (hare
) || !SYMBOLP (hare
))
3311 tortoise
= Fget (tortoise
, Qface_alias
);
3312 if (EQ (hare
, tortoise
))
3315 Fsignal (Qcircular_list
, Fcons (orig_face
, Qnil
));
3324 /* Return the face definition of FACE_NAME on frame F. F null means
3325 return the definition for new frames. FACE_NAME may be a string or
3326 a symbol (apparently Emacs 20.2 allowed strings as face names in
3327 face text properties; Ediff uses that). If FACE_NAME is an alias
3328 for another face, return that face's definition. If SIGNAL_P is
3329 non-zero, signal an error if FACE_NAME is not a valid face name.
3330 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3333 static INLINE Lisp_Object
3334 lface_from_face_name (f
, face_name
, signal_p
)
3336 Lisp_Object face_name
;
3341 face_name
= resolve_face_name (face_name
, signal_p
);
3344 lface
= assq_no_quit (face_name
, f
->face_alist
);
3346 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3349 lface
= XCDR (lface
);
3351 signal_error ("Invalid face", face_name
);
3353 check_lface (lface
);
3358 /* Get face attributes of face FACE_NAME from frame-local faces on
3359 frame F. Store the resulting attributes in ATTRS which must point
3360 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3361 is non-zero, signal an error if FACE_NAME does not name a face.
3362 Otherwise, value is zero if FACE_NAME is not a face. */
3365 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3367 Lisp_Object face_name
;
3374 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3377 bcopy (XVECTOR (lface
)->contents
, attrs
,
3378 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3388 /* Non-zero if all attributes in face attribute vector ATTRS are
3389 specified, i.e. are non-nil. */
3392 lface_fully_specified_p (attrs
)
3397 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3398 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3399 && i
!= LFACE_AVGWIDTH_INDEX
&& i
!= LFACE_FONTSET_INDEX
)
3400 if (UNSPECIFIEDP (attrs
[i
])
3402 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3403 always unspecified. */
3404 && i
!= LFACE_STIPPLE_INDEX
3409 return i
== LFACE_VECTOR_SIZE
;
3412 #ifdef HAVE_WINDOW_SYSTEM
3414 /* Set font-related attributes of Lisp face LFACE from the fullname of
3415 the font opened by FONTNAME. If FORCE_P is zero, set only
3416 unspecified attributes of LFACE. The exception is `font'
3417 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3419 If FONTNAME is not available on frame F,
3420 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3421 If the fullname is not in a valid XLFD format,
3422 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3423 in LFACE and return 1.
3424 Otherwise, return 1. */
3427 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3430 Lisp_Object fontname
;
3431 int force_p
, may_fail_p
;
3433 struct font_name font
;
3438 char *font_name
= SDATA (fontname
);
3439 struct font_info
*font_info
;
3441 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3442 fontset
= fs_query_fontset (fontname
, 0);
3444 font_name
= SDATA (fontset_ascii (fontset
));
3445 else if (fontset
== 0)
3452 /* Check if FONT_NAME is surely available on the system. Usually
3453 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3454 returns quickly. But, even if FONT_NAME is not yet cached,
3455 caching it now is not futail because we anyway load the font
3458 font_info
= FS_LOAD_FONT (f
, font_name
);
3468 font
.name
= STRDUPA (font_info
->full_name
);
3469 have_xlfd_p
= split_font_name (f
, &font
, 1);
3471 /* Set attributes only if unspecified, otherwise face defaults for
3472 new frames would never take effect. If we couldn't get a font
3473 name conforming to XLFD, set normal values. */
3475 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3480 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3481 + strlen (font
.fields
[XLFD_FOUNDRY
])
3483 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3484 font
.fields
[XLFD_FAMILY
]);
3485 val
= build_string (buffer
);
3488 val
= build_string ("*");
3489 LFACE_FAMILY (lface
) = val
;
3492 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3495 pt
= xlfd_point_size (f
, &font
);
3497 pt
= pixel_point_size (f
, font_info
->height
* 10);
3499 LFACE_HEIGHT (lface
) = make_number (pt
);
3502 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3503 LFACE_SWIDTH (lface
)
3504 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3506 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3507 LFACE_AVGWIDTH (lface
)
3509 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3512 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3513 LFACE_WEIGHT (lface
)
3514 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3516 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3518 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3522 LFACE_FONT (lface
) = build_string (font_info
->full_name
);
3523 LFACE_FONTSET (lface
) = fontset_name (fontset
);
3527 LFACE_FONT (lface
) = fontname
;
3529 = new_fontset_from_font_name (build_string (font_info
->full_name
));
3530 LFACE_FONTSET (lface
) = fontset_name (fontset
);
3535 #endif /* HAVE_WINDOW_SYSTEM */
3538 /* Merges the face height FROM with the face height TO, and returns the
3539 merged height. If FROM is an invalid height, then INVALID is
3540 returned instead. FROM and TO may be either absolute face heights or
3541 `relative' heights; the returned value is always an absolute height
3542 unless both FROM and TO are relative. GCPRO is a lisp value that
3543 will be protected from garbage-collection if this function makes a
3547 merge_face_heights (from
, to
, invalid
)
3548 Lisp_Object from
, to
, invalid
;
3550 Lisp_Object result
= invalid
;
3552 if (INTEGERP (from
))
3553 /* FROM is absolute, just use it as is. */
3555 else if (FLOATP (from
))
3556 /* FROM is a scale, use it to adjust TO. */
3559 /* relative X absolute => absolute */
3560 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3561 else if (FLOATP (to
))
3562 /* relative X relative => relative */
3563 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3564 else if (UNSPECIFIEDP (to
))
3567 else if (FUNCTIONP (from
))
3568 /* FROM is a function, which use to adjust TO. */
3570 /* Call function with current height as argument.
3571 From is the new height. */
3572 Lisp_Object args
[2];
3576 result
= safe_call (2, args
);
3578 /* Ensure that if TO was absolute, so is the result. */
3579 if (INTEGERP (to
) && !INTEGERP (result
))
3587 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3588 store the resulting attributes in TO, which must be already be
3589 completely specified and contain only absolute attributes. Every
3590 specified attribute of FROM overrides the corresponding attribute of
3591 TO; relative attributes in FROM are merged with the absolute value in
3592 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3593 loops in face inheritance; it should be 0 when called from other
3597 merge_face_vectors (f
, from
, to
, named_merge_points
)
3599 Lisp_Object
*from
, *to
;
3600 struct named_merge_point
*named_merge_points
;
3604 /* If FROM inherits from some other faces, merge their attributes into
3605 TO before merging FROM's direct attributes. Note that an :inherit
3606 attribute of `unspecified' is the same as one of nil; we never
3607 merge :inherit attributes, so nil is more correct, but lots of
3608 other code uses `unspecified' as a generic value for face attributes. */
3609 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3610 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3611 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3613 /* If TO specifies a :font attribute, and FROM specifies some
3614 font-related attribute, we need to clear TO's :font attribute
3615 (because it will be inconsistent with whatever FROM specifies, and
3616 FROM takes precedence). */
3617 if (!NILP (to
[LFACE_FONT_INDEX
])
3618 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3619 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3620 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3621 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3622 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3623 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3624 to
[LFACE_FONT_INDEX
] = Qnil
;
3626 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3627 if (!UNSPECIFIEDP (from
[i
]))
3629 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3630 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
]);
3635 /* TO is always an absolute face, which should inherit from nothing.
3636 We blindly copy the :inherit attribute above and fix it up here. */
3637 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3640 /* Merge the named face FACE_NAME on frame F, into the vector of face
3641 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3642 inheritance. Returns true if FACE_NAME is a valid face name and
3643 merging succeeded. */
3646 merge_named_face (f
, face_name
, to
, named_merge_points
)
3648 Lisp_Object face_name
;
3650 struct named_merge_point
*named_merge_points
;
3652 struct named_merge_point named_merge_point
;
3654 if (push_named_merge_point (&named_merge_point
,
3655 face_name
, &named_merge_points
))
3657 struct gcpro gcpro1
;
3658 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3659 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3663 GCPRO1 (named_merge_point
.face_name
);
3664 merge_face_vectors (f
, from
, to
, named_merge_points
);
3675 /* Merge face attributes from the lisp `face reference' FACE_REF on
3676 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3677 problems with FACE_REF cause an error message to be shown. Return
3678 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3679 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3680 list structure; it may be 0 for most callers.
3682 FACE_REF may be a single face specification or a list of such
3683 specifications. Each face specification can be:
3685 1. A symbol or string naming a Lisp face.
3687 2. A property list of the form (KEYWORD VALUE ...) where each
3688 KEYWORD is a face attribute name, and value is an appropriate value
3691 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3692 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3693 for compatibility with 20.2.
3695 Face specifications earlier in lists take precedence over later
3699 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3701 Lisp_Object face_ref
;
3704 struct named_merge_point
*named_merge_points
;
3706 int ok
= 1; /* Succeed without an error? */
3708 if (CONSP (face_ref
))
3710 Lisp_Object first
= XCAR (face_ref
);
3712 if (EQ (first
, Qforeground_color
)
3713 || EQ (first
, Qbackground_color
))
3715 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3716 . COLOR). COLOR must be a string. */
3717 Lisp_Object color_name
= XCDR (face_ref
);
3718 Lisp_Object color
= first
;
3720 if (STRINGP (color_name
))
3722 if (EQ (color
, Qforeground_color
))
3723 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3725 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3730 add_to_log ("Invalid face color", color_name
, Qnil
);
3734 else if (SYMBOLP (first
)
3735 && *SDATA (SYMBOL_NAME (first
)) == ':')
3737 /* Assume this is the property list form. */
3738 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3740 Lisp_Object keyword
= XCAR (face_ref
);
3741 Lisp_Object value
= XCAR (XCDR (face_ref
));
3744 /* Specifying `unspecified' is a no-op. */
3745 if (EQ (value
, Qunspecified
))
3747 else if (EQ (keyword
, QCfamily
))
3749 if (STRINGP (value
))
3750 to
[LFACE_FAMILY_INDEX
] = value
;
3754 else if (EQ (keyword
, QCheight
))
3756 Lisp_Object new_height
=
3757 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
], Qnil
);
3759 if (! NILP (new_height
))
3760 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3764 else if (EQ (keyword
, QCweight
))
3767 && face_numeric_weight (value
) >= 0)
3768 to
[LFACE_WEIGHT_INDEX
] = value
;
3772 else if (EQ (keyword
, QCslant
))
3775 && face_numeric_slant (value
) >= 0)
3776 to
[LFACE_SLANT_INDEX
] = value
;
3780 else if (EQ (keyword
, QCunderline
))
3785 to
[LFACE_UNDERLINE_INDEX
] = value
;
3789 else if (EQ (keyword
, QCoverline
))
3794 to
[LFACE_OVERLINE_INDEX
] = value
;
3798 else if (EQ (keyword
, QCstrike_through
))
3803 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3807 else if (EQ (keyword
, QCbox
))
3810 value
= make_number (1);
3811 if (INTEGERP (value
)
3815 to
[LFACE_BOX_INDEX
] = value
;
3819 else if (EQ (keyword
, QCinverse_video
)
3820 || EQ (keyword
, QCreverse_video
))
3822 if (EQ (value
, Qt
) || NILP (value
))
3823 to
[LFACE_INVERSE_INDEX
] = value
;
3827 else if (EQ (keyword
, QCforeground
))
3829 if (STRINGP (value
))
3830 to
[LFACE_FOREGROUND_INDEX
] = value
;
3834 else if (EQ (keyword
, QCbackground
))
3836 if (STRINGP (value
))
3837 to
[LFACE_BACKGROUND_INDEX
] = value
;
3841 else if (EQ (keyword
, QCstipple
))
3843 #ifdef HAVE_X_WINDOWS
3844 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3845 if (!NILP (pixmap_p
))
3846 to
[LFACE_STIPPLE_INDEX
] = value
;
3851 else if (EQ (keyword
, QCwidth
))
3854 && face_numeric_swidth (value
) >= 0)
3855 to
[LFACE_SWIDTH_INDEX
] = value
;
3859 else if (EQ (keyword
, QCinherit
))
3861 /* This is not really very useful; it's just like a
3862 normal face reference. */
3863 if (! merge_face_ref (f
, value
, to
,
3864 err_msgs
, named_merge_points
))
3872 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
3876 face_ref
= XCDR (XCDR (face_ref
));
3881 /* This is a list of face refs. Those at the beginning of the
3882 list take precedence over what follows, so we have to merge
3883 from the end backwards. */
3884 Lisp_Object next
= XCDR (face_ref
);
3887 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
3889 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
3895 /* FACE_REF ought to be a face name. */
3896 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
3897 if (!ok
&& err_msgs
)
3898 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
3905 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3906 Sinternal_make_lisp_face
, 1, 2, 0,
3907 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3908 If FACE was not known as a face before, create a new one.
3909 If optional argument FRAME is specified, make a frame-local face
3910 for that frame. Otherwise operate on the global face definition.
3911 Value is a vector of face attributes. */)
3913 Lisp_Object face
, frame
;
3915 Lisp_Object global_lface
, lface
;
3919 CHECK_SYMBOL (face
);
3920 global_lface
= lface_from_face_name (NULL
, face
, 0);
3924 CHECK_LIVE_FRAME (frame
);
3926 lface
= lface_from_face_name (f
, face
, 0);
3929 f
= NULL
, lface
= Qnil
;
3931 /* Add a global definition if there is none. */
3932 if (NILP (global_lface
))
3934 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3936 AREF (global_lface
, 0) = Qface
;
3937 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3938 Vface_new_frame_defaults
);
3940 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3941 face id to Lisp face is given by the vector lface_id_to_name.
3942 The mapping from Lisp face to Lisp face id is given by the
3943 property `face' of the Lisp face name. */
3944 if (next_lface_id
== lface_id_to_name_size
)
3946 int new_size
= max (50, 2 * lface_id_to_name_size
);
3947 int sz
= new_size
* sizeof *lface_id_to_name
;
3948 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3949 lface_id_to_name_size
= new_size
;
3952 lface_id_to_name
[next_lface_id
] = face
;
3953 Fput (face
, Qface
, make_number (next_lface_id
));
3957 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3958 AREF (global_lface
, i
) = Qunspecified
;
3960 /* Add a frame-local definition. */
3965 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3967 AREF (lface
, 0) = Qface
;
3968 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3971 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3972 AREF (lface
, i
) = Qunspecified
;
3975 lface
= global_lface
;
3977 /* Changing a named face means that all realized faces depending on
3978 that face are invalid. Since we cannot tell which realized faces
3979 depend on the face, make sure they are all removed. This is done
3980 by incrementing face_change_count. The next call to
3981 init_iterator will then free realized faces. */
3982 if (NILP (Fget (face
, Qface_no_inherit
)))
3984 ++face_change_count
;
3985 ++windows_or_buffers_changed
;
3988 xassert (LFACEP (lface
));
3989 check_lface (lface
);
3994 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3995 Sinternal_lisp_face_p
, 1, 2, 0,
3996 doc
: /* Return non-nil if FACE names a face.
3997 If optional second argument FRAME is non-nil, check for the
3998 existence of a frame-local face with name FACE on that frame.
3999 Otherwise check for the existence of a global face. */)
4001 Lisp_Object face
, frame
;
4007 CHECK_LIVE_FRAME (frame
);
4008 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4011 lface
= lface_from_face_name (NULL
, face
, 0);
4017 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
4018 Sinternal_copy_lisp_face
, 4, 4, 0,
4019 doc
: /* Copy face FROM to TO.
4020 If FRAME is t, copy the global face definition of FROM.
4021 Otherwise, copy the frame-local definition of FROM on FRAME.
4022 If NEW-FRAME is a frame, copy that data into the frame-local
4023 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
4024 FRAME controls where the data is copied to.
4026 The value is TO. */)
4027 (from
, to
, frame
, new_frame
)
4028 Lisp_Object from
, to
, frame
, new_frame
;
4030 Lisp_Object lface
, copy
;
4032 CHECK_SYMBOL (from
);
4037 /* Copy global definition of FROM. We don't make copies of
4038 strings etc. because 20.2 didn't do it either. */
4039 lface
= lface_from_face_name (NULL
, from
, 1);
4040 copy
= Finternal_make_lisp_face (to
, Qnil
);
4044 /* Copy frame-local definition of FROM. */
4045 if (NILP (new_frame
))
4047 CHECK_LIVE_FRAME (frame
);
4048 CHECK_LIVE_FRAME (new_frame
);
4049 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
4050 copy
= Finternal_make_lisp_face (to
, new_frame
);
4053 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
4054 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
4056 /* Changing a named face means that all realized faces depending on
4057 that face are invalid. Since we cannot tell which realized faces
4058 depend on the face, make sure they are all removed. This is done
4059 by incrementing face_change_count. The next call to
4060 init_iterator will then free realized faces. */
4061 if (NILP (Fget (to
, Qface_no_inherit
)))
4063 ++face_change_count
;
4064 ++windows_or_buffers_changed
;
4071 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
4072 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
4073 doc
: /* Set attribute ATTR of FACE to VALUE.
4074 FRAME being a frame means change the face on that frame.
4075 FRAME nil means change the face of the selected frame.
4076 FRAME t means change the default for new frames.
4077 FRAME 0 means change the face on all frames, and change the default
4079 (face
, attr
, value
, frame
)
4080 Lisp_Object face
, attr
, value
, frame
;
4083 Lisp_Object old_value
= Qnil
;
4084 /* Set 1 if ATTR is QCfont. */
4085 int font_attr_p
= 0;
4086 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
4087 int font_related_attr_p
= 0;
4089 CHECK_SYMBOL (face
);
4090 CHECK_SYMBOL (attr
);
4092 face
= resolve_face_name (face
, 1);
4094 /* If FRAME is 0, change face on all frames, and change the
4095 default for new frames. */
4096 if (INTEGERP (frame
) && XINT (frame
) == 0)
4099 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
4100 FOR_EACH_FRAME (tail
, frame
)
4101 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4105 /* Set lface to the Lisp attribute vector of FACE. */
4107 lface
= lface_from_face_name (NULL
, face
, 1);
4111 frame
= selected_frame
;
4113 CHECK_LIVE_FRAME (frame
);
4114 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4116 /* If a frame-local face doesn't exist yet, create one. */
4118 lface
= Finternal_make_lisp_face (face
, frame
);
4121 if (EQ (attr
, QCfamily
))
4123 if (!UNSPECIFIEDP (value
))
4125 CHECK_STRING (value
);
4126 if (SCHARS (value
) == 0)
4127 signal_error ("Invalid face family", value
);
4129 old_value
= LFACE_FAMILY (lface
);
4130 LFACE_FAMILY (lface
) = value
;
4131 font_related_attr_p
= 1;
4133 else if (EQ (attr
, QCheight
))
4135 if (!UNSPECIFIEDP (value
))
4139 test
= (EQ (face
, Qdefault
)
4141 /* The default face must have an absolute size,
4142 otherwise, we do a test merge with a random
4143 height to see if VALUE's ok. */
4144 : merge_face_heights (value
, make_number (10), Qnil
));
4146 if (!INTEGERP (test
) || XINT (test
) <= 0)
4147 signal_error ("Invalid face height", value
);
4150 old_value
= LFACE_HEIGHT (lface
);
4151 LFACE_HEIGHT (lface
) = value
;
4152 font_related_attr_p
= 1;
4154 else if (EQ (attr
, QCweight
))
4156 if (!UNSPECIFIEDP (value
))
4158 CHECK_SYMBOL (value
);
4159 if (face_numeric_weight (value
) < 0)
4160 signal_error ("Invalid face weight", value
);
4162 old_value
= LFACE_WEIGHT (lface
);
4163 LFACE_WEIGHT (lface
) = value
;
4164 font_related_attr_p
= 1;
4166 else if (EQ (attr
, QCslant
))
4168 if (!UNSPECIFIEDP (value
))
4170 CHECK_SYMBOL (value
);
4171 if (face_numeric_slant (value
) < 0)
4172 signal_error ("Invalid face slant", value
);
4174 old_value
= LFACE_SLANT (lface
);
4175 LFACE_SLANT (lface
) = value
;
4176 font_related_attr_p
= 1;
4178 else if (EQ (attr
, QCunderline
))
4180 if (!UNSPECIFIEDP (value
))
4181 if ((SYMBOLP (value
)
4183 && !EQ (value
, Qnil
))
4184 /* Underline color. */
4186 && SCHARS (value
) == 0))
4187 signal_error ("Invalid face underline", value
);
4189 old_value
= LFACE_UNDERLINE (lface
);
4190 LFACE_UNDERLINE (lface
) = value
;
4192 else if (EQ (attr
, QCoverline
))
4194 if (!UNSPECIFIEDP (value
))
4195 if ((SYMBOLP (value
)
4197 && !EQ (value
, Qnil
))
4198 /* Overline color. */
4200 && SCHARS (value
) == 0))
4201 signal_error ("Invalid face overline", value
);
4203 old_value
= LFACE_OVERLINE (lface
);
4204 LFACE_OVERLINE (lface
) = value
;
4206 else if (EQ (attr
, QCstrike_through
))
4208 if (!UNSPECIFIEDP (value
))
4209 if ((SYMBOLP (value
)
4211 && !EQ (value
, Qnil
))
4212 /* Strike-through color. */
4214 && SCHARS (value
) == 0))
4215 signal_error ("Invalid face strike-through", value
);
4217 old_value
= LFACE_STRIKE_THROUGH (lface
);
4218 LFACE_STRIKE_THROUGH (lface
) = value
;
4220 else if (EQ (attr
, QCbox
))
4224 /* Allow t meaning a simple box of width 1 in foreground color
4227 value
= make_number (1);
4229 if (UNSPECIFIEDP (value
))
4231 else if (NILP (value
))
4233 else if (INTEGERP (value
))
4234 valid_p
= XINT (value
) != 0;
4235 else if (STRINGP (value
))
4236 valid_p
= SCHARS (value
) > 0;
4237 else if (CONSP (value
))
4253 if (EQ (k
, QCline_width
))
4255 if (!INTEGERP (v
) || XINT (v
) == 0)
4258 else if (EQ (k
, QCcolor
))
4260 if (!NILP (v
) && (!STRINGP (v
) || SCHARS (v
) == 0))
4263 else if (EQ (k
, QCstyle
))
4265 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4272 valid_p
= NILP (tem
);
4278 signal_error ("Invalid face box", value
);
4280 old_value
= LFACE_BOX (lface
);
4281 LFACE_BOX (lface
) = value
;
4283 else if (EQ (attr
, QCinverse_video
)
4284 || EQ (attr
, QCreverse_video
))
4286 if (!UNSPECIFIEDP (value
))
4288 CHECK_SYMBOL (value
);
4289 if (!EQ (value
, Qt
) && !NILP (value
))
4290 signal_error ("Invalid inverse-video face attribute value", value
);
4292 old_value
= LFACE_INVERSE (lface
);
4293 LFACE_INVERSE (lface
) = value
;
4295 else if (EQ (attr
, QCforeground
))
4297 if (!UNSPECIFIEDP (value
))
4299 /* Don't check for valid color names here because it depends
4300 on the frame (display) whether the color will be valid
4301 when the face is realized. */
4302 CHECK_STRING (value
);
4303 if (SCHARS (value
) == 0)
4304 signal_error ("Empty foreground color value", value
);
4306 old_value
= LFACE_FOREGROUND (lface
);
4307 LFACE_FOREGROUND (lface
) = value
;
4309 else if (EQ (attr
, QCbackground
))
4311 if (!UNSPECIFIEDP (value
))
4313 /* Don't check for valid color names here because it depends
4314 on the frame (display) whether the color will be valid
4315 when the face is realized. */
4316 CHECK_STRING (value
);
4317 if (SCHARS (value
) == 0)
4318 signal_error ("Empty background color value", value
);
4320 old_value
= LFACE_BACKGROUND (lface
);
4321 LFACE_BACKGROUND (lface
) = value
;
4323 else if (EQ (attr
, QCstipple
))
4325 #ifdef HAVE_X_WINDOWS
4326 if (!UNSPECIFIEDP (value
)
4328 && NILP (Fbitmap_spec_p (value
)))
4329 signal_error ("Invalid stipple attribute", value
);
4330 old_value
= LFACE_STIPPLE (lface
);
4331 LFACE_STIPPLE (lface
) = value
;
4332 #endif /* HAVE_X_WINDOWS */
4334 else if (EQ (attr
, QCwidth
))
4336 if (!UNSPECIFIEDP (value
))
4338 CHECK_SYMBOL (value
);
4339 if (face_numeric_swidth (value
) < 0)
4340 signal_error ("Invalid face width", value
);
4342 old_value
= LFACE_SWIDTH (lface
);
4343 LFACE_SWIDTH (lface
) = value
;
4344 font_related_attr_p
= 1;
4346 else if (EQ (attr
, QCfont
) || EQ (attr
, QCfontset
))
4348 #ifdef HAVE_WINDOW_SYSTEM
4349 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4351 /* Set font-related attributes of the Lisp face from an XLFD
4357 f
= SELECTED_FRAME ();
4359 f
= check_x_frame (frame
);
4361 if (!UNSPECIFIEDP (value
))
4363 CHECK_STRING (value
);
4365 /* VALUE may be a fontset name or an alias of fontset. In
4366 such a case, use the base fontset name. */
4367 tmp
= Fquery_fontset (value
, Qnil
);
4370 else if (EQ (attr
, QCfontset
))
4371 signal_error ("Invalid fontset name", value
);
4373 if (EQ (attr
, QCfont
))
4375 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4376 signal_error ("Invalid font or fontset name", value
);
4379 LFACE_FONTSET (lface
) = value
;
4384 #endif /* HAVE_WINDOW_SYSTEM */
4386 else if (EQ (attr
, QCinherit
))
4389 if (SYMBOLP (value
))
4392 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4393 if (!SYMBOLP (XCAR (tail
)))
4396 LFACE_INHERIT (lface
) = value
;
4398 signal_error ("Invalid face inheritance", value
);
4400 else if (EQ (attr
, QCbold
))
4402 old_value
= LFACE_WEIGHT (lface
);
4403 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4404 font_related_attr_p
= 1;
4406 else if (EQ (attr
, QCitalic
))
4408 old_value
= LFACE_SLANT (lface
);
4409 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4410 font_related_attr_p
= 1;
4413 signal_error ("Invalid face attribute name", attr
);
4415 if (font_related_attr_p
4416 && !UNSPECIFIEDP (value
))
4417 /* If a font-related attribute other than QCfont is specified, the
4418 original `font' attribute nor that of default face is useless
4419 to determine a new font. Thus, we set it to nil so that font
4420 selection mechanism doesn't use it. */
4421 LFACE_FONT (lface
) = Qnil
;
4423 /* Changing a named face means that all realized faces depending on
4424 that face are invalid. Since we cannot tell which realized faces
4425 depend on the face, make sure they are all removed. This is done
4426 by incrementing face_change_count. The next call to
4427 init_iterator will then free realized faces. */
4429 && NILP (Fget (face
, Qface_no_inherit
))
4430 && (EQ (attr
, QCfont
)
4431 || EQ (attr
, QCfontset
)
4432 || NILP (Fequal (old_value
, value
))))
4434 ++face_change_count
;
4435 ++windows_or_buffers_changed
;
4438 if (!UNSPECIFIEDP (value
)
4439 && NILP (Fequal (old_value
, value
)))
4445 if (EQ (face
, Qdefault
))
4447 #ifdef HAVE_WINDOW_SYSTEM
4448 /* Changed font-related attributes of the `default' face are
4449 reflected in changed `font' frame parameters. */
4451 && (font_related_attr_p
|| font_attr_p
)
4452 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4453 set_font_frame_param (frame
, lface
);
4455 #endif /* HAVE_WINDOW_SYSTEM */
4457 if (EQ (attr
, QCforeground
))
4458 param
= Qforeground_color
;
4459 else if (EQ (attr
, QCbackground
))
4460 param
= Qbackground_color
;
4462 #ifdef HAVE_WINDOW_SYSTEM
4464 else if (EQ (face
, Qscroll_bar
))
4466 /* Changing the colors of `scroll-bar' sets frame parameters
4467 `scroll-bar-foreground' and `scroll-bar-background'. */
4468 if (EQ (attr
, QCforeground
))
4469 param
= Qscroll_bar_foreground
;
4470 else if (EQ (attr
, QCbackground
))
4471 param
= Qscroll_bar_background
;
4473 #endif /* not WINDOWSNT */
4474 else if (EQ (face
, Qborder
))
4476 /* Changing background color of `border' sets frame parameter
4478 if (EQ (attr
, QCbackground
))
4479 param
= Qborder_color
;
4481 else if (EQ (face
, Qcursor
))
4483 /* Changing background color of `cursor' sets frame parameter
4485 if (EQ (attr
, QCbackground
))
4486 param
= Qcursor_color
;
4488 else if (EQ (face
, Qmouse
))
4490 /* Changing background color of `mouse' sets frame parameter
4492 if (EQ (attr
, QCbackground
))
4493 param
= Qmouse_color
;
4495 #endif /* HAVE_WINDOW_SYSTEM */
4496 else if (EQ (face
, Qmenu
))
4498 /* Indicate that we have to update the menu bar when
4499 realizing faces on FRAME. FRAME t change the
4500 default for new frames. We do this by setting
4501 setting the flag in new face caches */
4504 struct frame
*f
= XFRAME (frame
);
4505 if (FRAME_FACE_CACHE (f
) == NULL
)
4506 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4507 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4510 menu_face_changed_default
= 1;
4516 /* Update `default-frame-alist', which is used for new frames. */
4518 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4521 /* Update the current frame's parameters. */
4524 cons
= XCAR (Vparam_value_alist
);
4525 XSETCAR (cons
, param
);
4526 XSETCDR (cons
, value
);
4527 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4536 #ifdef HAVE_WINDOW_SYSTEM
4538 /* Set the `font' frame parameter of FRAME determined from `default'
4539 face attributes LFACE. If a font name is explicitely
4540 specfied in LFACE, use it as is. Otherwise, determine a font name
4541 from the other font-related atrributes of LFACE. In that case, if
4542 there's no matching font, signals an error. */
4545 set_font_frame_param (frame
, lface
)
4546 Lisp_Object frame
, lface
;
4548 struct frame
*f
= XFRAME (frame
);
4550 if (FRAME_WINDOW_P (f
))
4552 Lisp_Object font_name
;
4555 if (STRINGP (LFACE_FONT (lface
)))
4556 font_name
= LFACE_FONT (lface
);
4559 /* Choose a font name that reflects LFACE's attributes and has
4560 the registry and encoding pattern specified in the default
4561 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4562 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, Qnil
, NULL
);
4564 error ("No font matches the specified attribute");
4565 font_name
= build_string (font
);
4569 f
->default_face_done_p
= 0;
4570 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4575 /* Update the corresponding face when frame parameter PARAM on frame F
4576 has been assigned the value NEW_VALUE. */
4579 update_face_from_frame_parameter (f
, param
, new_value
)
4581 Lisp_Object param
, new_value
;
4583 Lisp_Object face
= Qnil
;
4586 /* If there are no faces yet, give up. This is the case when called
4587 from Fx_create_frame, and we do the necessary things later in
4588 face-set-after-frame-defaults. */
4589 if (NILP (f
->face_alist
))
4592 if (EQ (param
, Qforeground_color
))
4595 lface
= lface_from_face_name (f
, face
, 1);
4596 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4597 ? new_value
: Qunspecified
);
4598 realize_basic_faces (f
);
4600 else if (EQ (param
, Qbackground_color
))
4604 /* Changing the background color might change the background
4605 mode, so that we have to load new defface specs.
4606 Call frame-set-background-mode to do that. */
4607 XSETFRAME (frame
, f
);
4608 call1 (Qframe_set_background_mode
, frame
);
4611 lface
= lface_from_face_name (f
, face
, 1);
4612 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4613 ? new_value
: Qunspecified
);
4614 realize_basic_faces (f
);
4616 else if (EQ (param
, Qborder_color
))
4619 lface
= lface_from_face_name (f
, face
, 1);
4620 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4621 ? new_value
: Qunspecified
);
4623 else if (EQ (param
, Qcursor_color
))
4626 lface
= lface_from_face_name (f
, face
, 1);
4627 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4628 ? new_value
: Qunspecified
);
4630 else if (EQ (param
, Qmouse_color
))
4633 lface
= lface_from_face_name (f
, face
, 1);
4634 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4635 ? new_value
: Qunspecified
);
4638 /* Changing a named face means that all realized faces depending on
4639 that face are invalid. Since we cannot tell which realized faces
4640 depend on the face, make sure they are all removed. This is done
4641 by incrementing face_change_count. The next call to
4642 init_iterator will then free realized faces. */
4644 && NILP (Fget (face
, Qface_no_inherit
)))
4646 ++face_change_count
;
4647 ++windows_or_buffers_changed
;
4652 /* Get the value of X resource RESOURCE, class CLASS for the display
4653 of frame FRAME. This is here because ordinary `x-get-resource'
4654 doesn't take a frame argument. */
4656 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4657 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4658 (resource
, class, frame
)
4659 Lisp_Object resource
, class, frame
;
4661 Lisp_Object value
= Qnil
;
4662 CHECK_STRING (resource
);
4663 CHECK_STRING (class);
4664 CHECK_LIVE_FRAME (frame
);
4666 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4667 resource
, class, Qnil
, Qnil
);
4673 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4674 If VALUE is "on" or "true", return t. If VALUE is "off" or
4675 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4676 error; if SIGNAL_P is zero, return 0. */
4679 face_boolean_x_resource_value (value
, signal_p
)
4683 Lisp_Object result
= make_number (0);
4685 xassert (STRINGP (value
));
4687 if (xstricmp (SDATA (value
), "on") == 0
4688 || xstricmp (SDATA (value
), "true") == 0)
4690 else if (xstricmp (SDATA (value
), "off") == 0
4691 || xstricmp (SDATA (value
), "false") == 0)
4693 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4694 result
= Qunspecified
;
4696 signal_error ("Invalid face attribute value from X resource", value
);
4702 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4703 Finternal_set_lisp_face_attribute_from_resource
,
4704 Sinternal_set_lisp_face_attribute_from_resource
,
4705 3, 4, 0, doc
: /* */)
4706 (face
, attr
, value
, frame
)
4707 Lisp_Object face
, attr
, value
, frame
;
4709 CHECK_SYMBOL (face
);
4710 CHECK_SYMBOL (attr
);
4711 CHECK_STRING (value
);
4713 if (xstricmp (SDATA (value
), "unspecified") == 0)
4714 value
= Qunspecified
;
4715 else if (EQ (attr
, QCheight
))
4717 value
= Fstring_to_number (value
, make_number (10));
4718 if (XINT (value
) <= 0)
4719 signal_error ("Invalid face height from X resource", value
);
4721 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4722 value
= face_boolean_x_resource_value (value
, 1);
4723 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4724 value
= intern (SDATA (value
));
4725 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4726 value
= face_boolean_x_resource_value (value
, 1);
4727 else if (EQ (attr
, QCunderline
)
4728 || EQ (attr
, QCoverline
)
4729 || EQ (attr
, QCstrike_through
))
4731 Lisp_Object boolean_value
;
4733 /* If the result of face_boolean_x_resource_value is t or nil,
4734 VALUE does NOT specify a color. */
4735 boolean_value
= face_boolean_x_resource_value (value
, 0);
4736 if (SYMBOLP (boolean_value
))
4737 value
= boolean_value
;
4739 else if (EQ (attr
, QCbox
))
4740 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4742 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4745 #endif /* HAVE_WINDOW_SYSTEM */
4748 /***********************************************************************
4750 ***********************************************************************/
4752 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4754 /* Make menus on frame F appear as specified by the `menu' face. */
4757 x_update_menu_appearance (f
)
4760 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4764 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4768 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4769 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4770 const char *myname
= SDATA (Vx_resource_name
);
4773 const char *popup_path
= "popup_menu";
4775 const char *popup_path
= "menu.popup";
4778 if (STRINGP (LFACE_FOREGROUND (lface
)))
4780 sprintf (line
, "%s.%s*foreground: %s",
4782 SDATA (LFACE_FOREGROUND (lface
)));
4783 XrmPutLineResource (&rdb
, line
);
4784 sprintf (line
, "%s.pane.menubar*foreground: %s",
4785 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4786 XrmPutLineResource (&rdb
, line
);
4790 if (STRINGP (LFACE_BACKGROUND (lface
)))
4792 sprintf (line
, "%s.%s*background: %s",
4794 SDATA (LFACE_BACKGROUND (lface
)));
4795 XrmPutLineResource (&rdb
, line
);
4796 sprintf (line
, "%s.pane.menubar*background: %s",
4797 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4798 XrmPutLineResource (&rdb
, line
);
4803 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4804 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4805 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4806 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4807 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4808 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4811 const char *suffix
= "List";
4814 #if defined HAVE_X_I18N
4816 const char *suffix
= "Set";
4818 const char *suffix
= "";
4822 #if defined HAVE_X_I18N
4823 extern char *xic_create_fontsetname
4824 P_ ((char *base_fontname
, Bool motif
));
4825 char *fontsetname
= xic_create_fontsetname (face
->font_name
, motif
);
4827 char *fontsetname
= face
->font_name
;
4829 sprintf (line
, "%s.pane.menubar*font%s: %s",
4830 myname
, suffix
, fontsetname
);
4831 XrmPutLineResource (&rdb
, line
);
4832 sprintf (line
, "%s.%s*font%s: %s",
4833 myname
, popup_path
, suffix
, fontsetname
);
4834 XrmPutLineResource (&rdb
, line
);
4836 if (fontsetname
!= face
->font_name
)
4837 xfree (fontsetname
);
4840 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4841 free_frame_menubar (f
);
4845 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4848 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4849 Sface_attribute_relative_p
,
4851 doc
: /* Return non-nil if face ATTRIBUTE VALUE is relative. */)
4853 Lisp_Object attribute
, value
;
4855 if (EQ (value
, Qunspecified
))
4857 else if (EQ (attribute
, QCheight
))
4858 return INTEGERP (value
) ? Qnil
: Qt
;
4863 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4865 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4866 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4867 the result will be absolute, otherwise it will be relative. */)
4868 (attribute
, value1
, value2
)
4869 Lisp_Object attribute
, value1
, value2
;
4871 if (EQ (value1
, Qunspecified
))
4873 else if (EQ (attribute
, QCheight
))
4874 return merge_face_heights (value1
, value2
, value1
);
4880 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4881 Sinternal_get_lisp_face_attribute
,
4883 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4884 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4885 face attribute name, signal an error.
4886 If the optional argument FRAME is given, report on face SYMBOL in that
4887 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
4888 frames). If FRAME is omitted or nil, use the selected frame. */)
4889 (symbol
, keyword
, frame
)
4890 Lisp_Object symbol
, keyword
, frame
;
4892 Lisp_Object lface
, value
= Qnil
;
4894 CHECK_SYMBOL (symbol
);
4895 CHECK_SYMBOL (keyword
);
4898 lface
= lface_from_face_name (NULL
, symbol
, 1);
4902 frame
= selected_frame
;
4903 CHECK_LIVE_FRAME (frame
);
4904 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4907 if (EQ (keyword
, QCfamily
))
4908 value
= LFACE_FAMILY (lface
);
4909 else if (EQ (keyword
, QCheight
))
4910 value
= LFACE_HEIGHT (lface
);
4911 else if (EQ (keyword
, QCweight
))
4912 value
= LFACE_WEIGHT (lface
);
4913 else if (EQ (keyword
, QCslant
))
4914 value
= LFACE_SLANT (lface
);
4915 else if (EQ (keyword
, QCunderline
))
4916 value
= LFACE_UNDERLINE (lface
);
4917 else if (EQ (keyword
, QCoverline
))
4918 value
= LFACE_OVERLINE (lface
);
4919 else if (EQ (keyword
, QCstrike_through
))
4920 value
= LFACE_STRIKE_THROUGH (lface
);
4921 else if (EQ (keyword
, QCbox
))
4922 value
= LFACE_BOX (lface
);
4923 else if (EQ (keyword
, QCinverse_video
)
4924 || EQ (keyword
, QCreverse_video
))
4925 value
= LFACE_INVERSE (lface
);
4926 else if (EQ (keyword
, QCforeground
))
4927 value
= LFACE_FOREGROUND (lface
);
4928 else if (EQ (keyword
, QCbackground
))
4929 value
= LFACE_BACKGROUND (lface
);
4930 else if (EQ (keyword
, QCstipple
))
4931 value
= LFACE_STIPPLE (lface
);
4932 else if (EQ (keyword
, QCwidth
))
4933 value
= LFACE_SWIDTH (lface
);
4934 else if (EQ (keyword
, QCinherit
))
4935 value
= LFACE_INHERIT (lface
);
4936 else if (EQ (keyword
, QCfont
))
4937 value
= LFACE_FONT (lface
);
4938 else if (EQ (keyword
, QCfontset
))
4939 value
= LFACE_FONTSET (lface
);
4941 signal_error ("Invalid face attribute name", keyword
);
4947 DEFUN ("internal-lisp-face-attribute-values",
4948 Finternal_lisp_face_attribute_values
,
4949 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4950 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4951 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4955 Lisp_Object result
= Qnil
;
4957 CHECK_SYMBOL (attr
);
4959 if (EQ (attr
, QCweight
)
4960 || EQ (attr
, QCslant
)
4961 || EQ (attr
, QCwidth
))
4963 /* Extract permissible symbols from tables. */
4964 struct table_entry
*table
;
4967 if (EQ (attr
, QCweight
))
4968 table
= weight_table
, dim
= DIM (weight_table
);
4969 else if (EQ (attr
, QCslant
))
4970 table
= slant_table
, dim
= DIM (slant_table
);
4972 table
= swidth_table
, dim
= DIM (swidth_table
);
4974 for (i
= 0; i
< dim
; ++i
)
4976 Lisp_Object symbol
= *table
[i
].symbol
;
4977 Lisp_Object tail
= result
;
4980 && !EQ (XCAR (tail
), symbol
))
4984 result
= Fcons (symbol
, result
);
4987 else if (EQ (attr
, QCunderline
))
4988 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4989 else if (EQ (attr
, QCoverline
))
4990 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4991 else if (EQ (attr
, QCstrike_through
))
4992 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4993 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4994 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
5000 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
5001 Sinternal_merge_in_global_face
, 2, 2, 0,
5002 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
5003 Default face attributes override any local face attributes. */)
5005 Lisp_Object face
, frame
;
5008 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
5010 CHECK_LIVE_FRAME (frame
);
5011 global_lface
= lface_from_face_name (NULL
, face
, 1);
5012 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
5013 if (NILP (local_lface
))
5014 local_lface
= Finternal_make_lisp_face (face
, frame
);
5016 /* Make every specified global attribute override the local one.
5017 BEWARE!! This is only used from `face-set-after-frame-default' where
5018 the local frame is defined from default specs in `face-defface-spec'
5019 and those should be overridden by global settings. Hence the strange
5020 "global before local" priority. */
5021 lvec
= XVECTOR (local_lface
)->contents
;
5022 gvec
= XVECTOR (global_lface
)->contents
;
5023 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5024 if (! UNSPECIFIEDP (gvec
[i
]))
5031 /* The following function is implemented for compatibility with 20.2.
5032 The function is used in x-resolve-fonts when it is asked to
5033 return fonts with the same size as the font of a face. This is
5034 done in fontset.el. */
5036 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 3, 0,
5037 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
5038 The font name is, by default, for ASCII characters.
5039 If the optional argument FRAME is given, report on face FACE in that frame.
5040 If FRAME is t, report on the defaults for face FACE (for new frames).
5041 The font default for a face is either nil, or a list
5042 of the form (bold), (italic) or (bold italic).
5043 If FRAME is omitted or nil, use the selected frame. And, in this case,
5044 if the optional third argument CHARACTER is given,
5045 return the font name used for CHARACTER. */)
5046 (face
, frame
, character
)
5047 Lisp_Object face
, frame
, character
;
5051 Lisp_Object result
= Qnil
;
5052 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
5054 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
5055 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
5056 result
= Fcons (Qbold
, result
);
5058 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
5059 && !EQ (LFACE_SLANT (lface
), Qnormal
))
5060 result
= Fcons (Qitalic
, result
);
5066 struct frame
*f
= frame_or_selected_frame (frame
, 1);
5067 int face_id
= lookup_named_face (f
, face
, 1);
5068 struct face
*face
= FACE_FROM_ID (f
, face_id
);
5072 #ifdef HAVE_WINDOW_SYSTEM
5073 if (FRAME_WINDOW_P (f
) && !NILP (character
))
5075 CHECK_CHARACTER (character
);
5076 face_id
= FACE_FOR_CHAR (f
, face
, XINT (character
), -1, Qnil
);
5077 face
= FACE_FROM_ID (f
, face_id
);
5078 return (face
->font
&& face
->font_name
5079 ? build_string (face
->font_name
)
5083 return build_string (face
->font_name
);
5088 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
5089 all attributes are `equal'. Tries to be fast because this function
5090 is called quite often. */
5093 face_attr_equal_p (v1
, v2
)
5096 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
5097 and the other is specified. */
5098 if (XTYPE (v1
) != XTYPE (v2
))
5107 if (SBYTES (v1
) != SBYTES (v2
))
5110 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
5117 return !NILP (Fequal (v1
, v2
));
5122 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
5123 all attributes are `equal'. Tries to be fast because this function
5124 is called quite often. */
5127 lface_equal_p (v1
, v2
)
5128 Lisp_Object
*v1
, *v2
;
5132 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
5133 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
5139 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
5140 Sinternal_lisp_face_equal_p
, 2, 3, 0,
5141 doc
: /* True if FACE1 and FACE2 are equal.
5142 If the optional argument FRAME is given, report on FACE1 and FACE2 in that frame.
5143 If FRAME is t, report on the defaults for FACE1 and FACE2 (for new frames).
5144 If FRAME is omitted or nil, use the selected frame. */)
5145 (face1
, face2
, frame
)
5146 Lisp_Object face1
, face2
, frame
;
5150 Lisp_Object lface1
, lface2
;
5155 /* Don't use check_x_frame here because this function is called
5156 before X frames exist. At that time, if FRAME is nil,
5157 selected_frame will be used which is the frame dumped with
5158 Emacs. That frame is not an X frame. */
5159 f
= frame_or_selected_frame (frame
, 2);
5161 lface1
= lface_from_face_name (f
, face1
, 1);
5162 lface2
= lface_from_face_name (f
, face2
, 1);
5163 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
5164 XVECTOR (lface2
)->contents
);
5165 return equal_p
? Qt
: Qnil
;
5169 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
5170 Sinternal_lisp_face_empty_p
, 1, 2, 0,
5171 doc
: /* True if FACE has no attribute specified.
5172 If the optional argument FRAME is given, report on face FACE in that frame.
5173 If FRAME is t, report on the defaults for face FACE (for new frames).
5174 If FRAME is omitted or nil, use the selected frame. */)
5176 Lisp_Object face
, frame
;
5183 frame
= selected_frame
;
5184 CHECK_LIVE_FRAME (frame
);
5188 lface
= lface_from_face_name (NULL
, face
, 1);
5190 lface
= lface_from_face_name (f
, face
, 1);
5192 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5193 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5196 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5200 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5202 doc
: /* Return an alist of frame-local faces defined on FRAME.
5203 For internal use only. */)
5207 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5208 return f
->face_alist
;
5212 /* Return a hash code for Lisp string STRING with case ignored. Used
5213 below in computing a hash value for a Lisp face. */
5215 static INLINE
unsigned
5216 hash_string_case_insensitive (string
)
5219 const unsigned char *s
;
5221 xassert (STRINGP (string
));
5222 for (s
= SDATA (string
); *s
; ++s
)
5223 hash
= (hash
<< 1) ^ tolower (*s
);
5228 /* Return a hash code for face attribute vector V. */
5230 static INLINE
unsigned
5234 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5235 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5236 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5237 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5238 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5239 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5240 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5244 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5245 considering charsets/registries). They do if they specify the same
5246 family, point size, weight, width, slant, font, and fontset. Both
5247 LFACE1 and LFACE2 must be fully-specified. */
5250 lface_same_font_attributes_p (lface1
, lface2
)
5251 Lisp_Object
*lface1
, *lface2
;
5253 xassert (lface_fully_specified_p (lface1
)
5254 && lface_fully_specified_p (lface2
));
5255 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5256 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5257 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5258 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5259 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5260 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5261 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5262 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5263 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5264 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5265 && ! xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5266 SDATA (lface2
[LFACE_FONT_INDEX
]))))
5267 && (EQ (lface1
[LFACE_FONTSET_INDEX
], lface2
[LFACE_FONTSET_INDEX
])
5268 || (STRINGP (lface1
[LFACE_FONTSET_INDEX
])
5269 && STRINGP (lface2
[LFACE_FONTSET_INDEX
])
5270 && ! xstricmp (SDATA (lface1
[LFACE_FONTSET_INDEX
]),
5271 SDATA (lface2
[LFACE_FONTSET_INDEX
]))))
5277 /***********************************************************************
5279 ***********************************************************************/
5281 /* Allocate and return a new realized face for Lisp face attribute
5284 static struct face
*
5285 make_realized_face (attr
)
5288 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5289 bzero (face
, sizeof *face
);
5290 face
->ascii_face
= face
;
5291 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5296 /* Free realized face FACE, including its X resources. FACE may
5300 free_realized_face (f
, face
)
5306 #ifdef HAVE_WINDOW_SYSTEM
5307 if (FRAME_WINDOW_P (f
))
5309 /* Free fontset of FACE if it is ASCII face. */
5310 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5311 free_face_fontset (f
, face
);
5314 x_free_gc (f
, face
->gc
);
5318 free_face_colors (f
, face
);
5319 x_destroy_bitmap (f
, face
->stipple
);
5321 #endif /* HAVE_WINDOW_SYSTEM */
5328 /* Prepare face FACE for subsequent display on frame F. This
5329 allocated GCs if they haven't been allocated yet or have been freed
5330 by clearing the face cache. */
5333 prepare_face_for_display (f
, face
)
5337 #ifdef HAVE_WINDOW_SYSTEM
5338 xassert (FRAME_WINDOW_P (f
));
5343 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5345 xgcv
.foreground
= face
->foreground
;
5346 xgcv
.background
= face
->background
;
5347 #ifdef HAVE_X_WINDOWS
5348 xgcv
.graphics_exposures
= False
;
5350 /* The font of FACE may be null if we couldn't load it. */
5353 #ifdef HAVE_X_WINDOWS
5354 xgcv
.font
= face
->font
->fid
;
5357 xgcv
.font
= face
->font
;
5360 xgcv
.font
= face
->font
;
5366 #ifdef HAVE_X_WINDOWS
5369 xgcv
.fill_style
= FillOpaqueStippled
;
5370 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5371 mask
|= GCFillStyle
| GCStipple
;
5374 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5377 #endif /* HAVE_WINDOW_SYSTEM */
5381 /* Returns the `distance' between the colors X and Y. */
5384 color_distance (x
, y
)
5387 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5388 Quoting from that paper:
5390 This formula has results that are very close to L*u*v* (with the
5391 modified lightness curve) and, more importantly, it is a more even
5392 algorithm: it does not have a range of colours where it suddenly
5393 gives far from optimal results.
5395 See <http://www.compuphase.com/cmetric.htm> for more info. */
5397 long r
= (x
->red
- y
->red
) >> 8;
5398 long g
= (x
->green
- y
->green
) >> 8;
5399 long b
= (x
->blue
- y
->blue
) >> 8;
5400 long r_mean
= (x
->red
+ y
->red
) >> 9;
5403 (((512 + r_mean
) * r
* r
) >> 8)
5405 + (((767 - r_mean
) * b
* b
) >> 8);
5409 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5410 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5411 COLOR1 and COLOR2 may be either strings containing the color name,
5412 or lists of the form (RED GREEN BLUE).
5413 If FRAME is unspecified or nil, the current frame is used. */)
5414 (color1
, color2
, frame
)
5415 Lisp_Object color1
, color2
, frame
;
5418 XColor cdef1
, cdef2
;
5421 frame
= selected_frame
;
5422 CHECK_LIVE_FRAME (frame
);
5425 if ((CONSP (color1
) && !parse_rgb_list (color1
, &cdef1
))
5426 || !STRINGP (color1
)
5427 || !defined_color (f
, SDATA (color1
), &cdef1
, 0))
5428 signal_error ("Invalid color", color1
);
5429 if ((CONSP (color2
) && !parse_rgb_list (color2
, &cdef2
))
5430 || !STRINGP (color2
)
5431 || !defined_color (f
, SDATA (color2
), &cdef2
, 0))
5432 signal_error ("Invalid color", color2
);
5434 return make_number (color_distance (&cdef1
, &cdef2
));
5438 /***********************************************************************
5440 ***********************************************************************/
5442 /* Return a new face cache for frame F. */
5444 static struct face_cache
*
5448 struct face_cache
*c
;
5451 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5452 bzero (c
, sizeof *c
);
5453 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5454 c
->buckets
= (struct face
**) xmalloc (size
);
5455 bzero (c
->buckets
, size
);
5457 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5459 c
->menu_face_changed_p
= menu_face_changed_default
;
5464 /* Clear out all graphics contexts for all realized faces, except for
5465 the basic faces. This should be done from time to time just to avoid
5466 keeping too many graphics contexts that are no longer needed. */
5470 struct face_cache
*c
;
5472 if (c
&& FRAME_WINDOW_P (c
->f
))
5474 #ifdef HAVE_WINDOW_SYSTEM
5476 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5478 struct face
*face
= c
->faces_by_id
[i
];
5479 if (face
&& face
->gc
)
5481 x_free_gc (c
->f
, face
->gc
);
5485 #endif /* HAVE_WINDOW_SYSTEM */
5490 /* Free all realized faces in face cache C, including basic faces.
5491 C may be null. If faces are freed, make sure the frame's current
5492 matrix is marked invalid, so that a display caused by an expose
5493 event doesn't try to use faces we destroyed. */
5496 free_realized_faces (c
)
5497 struct face_cache
*c
;
5502 struct frame
*f
= c
->f
;
5504 /* We must block input here because we can't process X events
5505 safely while only some faces are freed, or when the frame's
5506 current matrix still references freed faces. */
5509 for (i
= 0; i
< c
->used
; ++i
)
5511 free_realized_face (f
, c
->faces_by_id
[i
]);
5512 c
->faces_by_id
[i
] = NULL
;
5516 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5517 bzero (c
->buckets
, size
);
5519 /* Must do a thorough redisplay the next time. Mark current
5520 matrices as invalid because they will reference faces freed
5521 above. This function is also called when a frame is
5522 destroyed. In this case, the root window of F is nil. */
5523 if (WINDOWP (f
->root_window
))
5525 clear_current_matrices (f
);
5526 ++windows_or_buffers_changed
;
5534 /* Free all realized faces that are using FONTSET on frame F. */
5537 free_realized_faces_for_fontset (f
, fontset
)
5541 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5545 /* We must block input here because we can't process X events safely
5546 while only some faces are freed, or when the frame's current
5547 matrix still references freed faces. */
5550 for (i
= 0; i
< cache
->used
; i
++)
5552 face
= cache
->faces_by_id
[i
];
5554 && face
->fontset
== fontset
)
5556 uncache_face (cache
, face
);
5557 free_realized_face (f
, face
);
5561 /* Must do a thorough redisplay the next time. Mark current
5562 matrices as invalid because they will reference faces freed
5563 above. This function is also called when a frame is destroyed.
5564 In this case, the root window of F is nil. */
5565 if (WINDOWP (f
->root_window
))
5567 clear_current_matrices (f
);
5568 ++windows_or_buffers_changed
;
5575 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5576 This is done after attributes of a named face have been changed,
5577 because we can't tell which realized faces depend on that face. */
5580 free_all_realized_faces (frame
)
5586 FOR_EACH_FRAME (rest
, frame
)
5587 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5590 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5594 /* Free face cache C and faces in it, including their X resources. */
5598 struct face_cache
*c
;
5602 free_realized_faces (c
);
5604 xfree (c
->faces_by_id
);
5610 /* Cache realized face FACE in face cache C. HASH is the hash value
5611 of FACE. If FACE is for ASCII characters (i.e. FACE->ascii_face ==
5612 FACE), insert the new face to the beginning of the collision list
5613 of the face hash table of C. Otherwise, add the new face to the
5614 end of the collision list. This way, lookup_face can quickly find
5615 that a requested face is not cached. */
5618 cache_face (c
, face
, hash
)
5619 struct face_cache
*c
;
5623 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5627 if (face
->ascii_face
!= face
)
5629 struct face
*last
= c
->buckets
[i
];
5640 c
->buckets
[i
] = face
;
5641 face
->prev
= face
->next
= NULL
;
5647 face
->next
= c
->buckets
[i
];
5649 face
->next
->prev
= face
;
5650 c
->buckets
[i
] = face
;
5653 /* Find a free slot in C->faces_by_id and use the index of the free
5654 slot as FACE->id. */
5655 for (i
= 0; i
< c
->used
; ++i
)
5656 if (c
->faces_by_id
[i
] == NULL
)
5660 /* Maybe enlarge C->faces_by_id. */
5663 if (c
->used
== c
->size
)
5666 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5667 if (new_size
== c
->size
)
5668 abort (); /* Alternatives? ++kfs */
5669 sz
= new_size
* sizeof *c
->faces_by_id
;
5670 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5677 /* Check that FACE got a unique id. */
5682 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5683 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5689 #endif /* GLYPH_DEBUG */
5691 c
->faces_by_id
[i
] = face
;
5695 /* Remove face FACE from cache C. */
5698 uncache_face (c
, face
)
5699 struct face_cache
*c
;
5702 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5705 face
->prev
->next
= face
->next
;
5707 c
->buckets
[i
] = face
->next
;
5710 face
->next
->prev
= face
->prev
;
5712 c
->faces_by_id
[face
->id
] = NULL
;
5713 if (face
->id
== c
->used
)
5718 /* Look up a realized face with face attributes ATTR in the face cache
5719 of frame F. The face will be used to display ASCII characters.
5720 Value is the ID of the face found. If no suitable face is found,
5721 realize a new one. */
5724 lookup_face (f
, attr
)
5728 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5733 xassert (cache
!= NULL
);
5734 check_lface_attrs (attr
);
5736 /* Look up ATTR in the face cache. */
5737 hash
= lface_hash (attr
);
5738 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5740 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5742 if (face
->ascii_face
!= face
)
5744 /* There's no more ASCII face. */
5748 if (face
->hash
== hash
5749 && lface_equal_p (face
->lface
, attr
))
5753 /* If not found, realize a new face. */
5755 face
= realize_face (cache
, attr
, -1);
5758 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5759 #endif /* GLYPH_DEBUG */
5764 #ifdef HAVE_WINDOW_SYSTEM
5765 /* Look up a realized face that has the same attributes as BASE_FACE
5766 except for the font in the face cache of frame F. If FONT_ID is
5767 not negative, it is an ID number of an already opened font that is
5768 used by the face. If FONT_ID is negative, the face has no font.
5769 Value is the ID of the face found. If no suitable face is found,
5770 realize a new one. */
5773 lookup_non_ascii_face (f
, font_id
, base_face
)
5776 struct face
*base_face
;
5778 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5783 xassert (cache
!= NULL
);
5784 base_face
= base_face
->ascii_face
;
5785 hash
= lface_hash (base_face
->lface
);
5786 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5788 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5790 if (face
->ascii_face
== face
)
5792 if (face
->ascii_face
== base_face
5793 && face
->font_info_id
== font_id
)
5797 /* If not found, realize a new face. */
5799 face
= realize_non_ascii_face (f
, font_id
, base_face
);
5802 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5803 #endif /* GLYPH_DEBUG */
5807 #endif /* HAVE_WINDOW_SYSTEM */
5809 /* Return the face id of the realized face for named face SYMBOL on
5810 frame F suitable for displaying ASCII characters. Value is -1 if
5811 the face couldn't be determined, which might happen if the default
5812 face isn't realized and cannot be realized. */
5815 lookup_named_face (f
, symbol
, signal_p
)
5820 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5821 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5822 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5824 if (default_face
== NULL
)
5826 if (!realize_basic_faces (f
))
5828 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5831 if (!get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
))
5834 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5835 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5837 return lookup_face (f
, attrs
);
5841 /* Return the ID of the realized ASCII face of Lisp face with ID
5842 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5845 ascii_face_of_lisp_face (f
, lface_id
)
5851 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5853 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5854 face_id
= lookup_named_face (f
, face_name
, 1);
5863 /* Return a face for charset ASCII that is like the face with id
5864 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5865 STEPS < 0 means larger. Value is the id of the face. */
5868 smaller_face (f
, face_id
, steps
)
5872 #ifdef HAVE_WINDOW_SYSTEM
5874 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5875 int pt
, last_pt
, last_height
;
5878 struct face
*new_face
;
5880 /* If not called for an X frame, just return the original face. */
5881 if (FRAME_TERMCAP_P (f
))
5884 /* Try in increments of 1/2 pt. */
5885 delta
= steps
< 0 ? 5 : -5;
5886 steps
= abs (steps
);
5888 face
= FACE_FROM_ID (f
, face_id
);
5889 bcopy (face
->lface
, attrs
, sizeof attrs
);
5890 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5891 new_face_id
= face_id
;
5892 last_height
= FONT_HEIGHT (face
->font
);
5896 /* Give up if we cannot find a font within 10pt. */
5897 && abs (last_pt
- pt
) < 100)
5899 /* Look up a face for a slightly smaller/larger font. */
5901 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5902 new_face_id
= lookup_face (f
, attrs
);
5903 new_face
= FACE_FROM_ID (f
, new_face_id
);
5905 /* If height changes, count that as one step. */
5906 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5907 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5910 last_height
= FONT_HEIGHT (new_face
->font
);
5917 #else /* not HAVE_WINDOW_SYSTEM */
5921 #endif /* not HAVE_WINDOW_SYSTEM */
5925 /* Return a face for charset ASCII that is like the face with id
5926 FACE_ID on frame F, but has height HEIGHT. */
5929 face_with_height (f
, face_id
, height
)
5934 #ifdef HAVE_WINDOW_SYSTEM
5936 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5938 if (FRAME_TERMCAP_P (f
)
5942 face
= FACE_FROM_ID (f
, face_id
);
5943 bcopy (face
->lface
, attrs
, sizeof attrs
);
5944 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5945 face_id
= lookup_face (f
, attrs
);
5946 #endif /* HAVE_WINDOW_SYSTEM */
5952 /* Return the face id of the realized face for named face SYMBOL on
5953 frame F suitable for displaying ASCII characters, and use
5954 attributes of the face FACE_ID for attributes that aren't
5955 completely specified by SYMBOL. This is like lookup_named_face,
5956 except that the default attributes come from FACE_ID, not from the
5957 default face. FACE_ID is assumed to be already realized. */
5960 lookup_derived_face (f
, symbol
, face_id
, signal_p
)
5966 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5967 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5968 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5973 get_lface_attributes (f
, symbol
, symbol_attrs
, signal_p
);
5974 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5975 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5976 return lookup_face (f
, attrs
);
5979 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5980 Sface_attributes_as_vector
, 1, 1, 0,
5981 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5986 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5988 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5995 /***********************************************************************
5996 Face capability testing
5997 ***********************************************************************/
6000 /* If the distance (as returned by color_distance) between two colors is
6001 less than this, then they are considered the same, for determining
6002 whether a color is supported or not. The range of values is 0-65535. */
6004 #define TTY_SAME_COLOR_THRESHOLD 10000
6006 #ifdef HAVE_WINDOW_SYSTEM
6008 /* Return non-zero if all the face attributes in ATTRS are supported
6009 on the window-system frame F.
6011 The definition of `supported' is somewhat heuristic, but basically means
6012 that a face containing all the attributes in ATTRS, when merged with the
6013 default face for display, can be represented in a way that's
6015 \(1) different in appearance than the default face, and
6016 \(2) `close in spirit' to what the attributes specify, if not exact. */
6019 x_supports_face_attributes_p (f
, attrs
, def_face
)
6022 struct face
*def_face
;
6024 Lisp_Object
*def_attrs
= def_face
->lface
;
6026 /* Check that other specified attributes are different that the default
6028 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
6029 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
6030 def_attrs
[LFACE_UNDERLINE_INDEX
]))
6031 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
6032 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
6033 def_attrs
[LFACE_INVERSE_INDEX
]))
6034 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
6035 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
6036 def_attrs
[LFACE_FOREGROUND_INDEX
]))
6037 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
6038 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
6039 def_attrs
[LFACE_BACKGROUND_INDEX
]))
6040 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
6041 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
6042 def_attrs
[LFACE_STIPPLE_INDEX
]))
6043 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
6044 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
6045 def_attrs
[LFACE_OVERLINE_INDEX
]))
6046 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
6047 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6048 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
6049 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
6050 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
6051 def_attrs
[LFACE_BOX_INDEX
])))
6054 /* Check font-related attributes, as those are the most commonly
6055 "unsupported" on a window-system (because of missing fonts). */
6056 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
6057 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
6058 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
6059 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
6060 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
6061 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
6065 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
6067 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
6069 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
6071 face_id
= lookup_face (f
, merged_attrs
);
6072 face
= FACE_FROM_ID (f
, face_id
);
6075 error ("Cannot make face");
6077 /* If the font is the same, then not supported. */
6078 if (face
->font
== def_face
->font
)
6082 /* Everything checks out, this face is supported. */
6086 #endif /* HAVE_WINDOW_SYSTEM */
6088 /* Return non-zero if all the face attributes in ATTRS are supported
6091 The definition of `supported' is somewhat heuristic, but basically means
6092 that a face containing all the attributes in ATTRS, when merged
6093 with the default face for display, can be represented in a way that's
6095 \(1) different in appearance than the default face, and
6096 \(2) `close in spirit' to what the attributes specify, if not exact.
6098 Point (2) implies that a `:weight black' attribute will be satisfied
6099 by any terminal that can display bold, and a `:foreground "yellow"' as
6100 long as the terminal can display a yellowish color, but `:slant italic'
6101 will _not_ be satisfied by the tty display code's automatic
6102 substitution of a `dim' face for italic. */
6105 tty_supports_face_attributes_p (f
, attrs
, def_face
)
6108 struct face
*def_face
;
6111 Lisp_Object val
, fg
, bg
;
6112 XColor fg_tty_color
, fg_std_color
;
6113 XColor bg_tty_color
, bg_std_color
;
6114 unsigned test_caps
= 0;
6115 Lisp_Object
*def_attrs
= def_face
->lface
;
6118 /* First check some easy-to-check stuff; ttys support none of the
6119 following attributes, so we can just return false if any are requested
6120 (even if `nominal' values are specified, we should still return false,
6121 as that will be the same value that the default face uses). We
6122 consider :slant unsupportable on ttys, even though the face code
6123 actually `fakes' them using a dim attribute if possible. This is
6124 because the faked result is too different from what the face
6126 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
6127 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
6128 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
6129 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
6130 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
6131 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
6132 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
6133 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
6137 /* Test for terminal `capabilities' (non-color character attributes). */
6139 /* font weight (bold/dim) */
6140 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6143 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
6145 if (weight
> XLFD_WEIGHT_MEDIUM
)
6147 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
6148 return 0; /* same as default */
6149 test_caps
= TTY_CAP_BOLD
;
6151 else if (weight
< XLFD_WEIGHT_MEDIUM
)
6153 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
6154 return 0; /* same as default */
6155 test_caps
= TTY_CAP_DIM
;
6157 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
6158 return 0; /* same as default */
6162 val
= attrs
[LFACE_UNDERLINE_INDEX
];
6163 if (!UNSPECIFIEDP (val
))
6166 return 0; /* ttys can't use colored underlines */
6167 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6168 return 0; /* same as default */
6170 test_caps
|= TTY_CAP_UNDERLINE
;
6174 val
= attrs
[LFACE_INVERSE_INDEX
];
6175 if (!UNSPECIFIEDP (val
))
6177 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
6178 return 0; /* same as default */
6180 test_caps
|= TTY_CAP_INVERSE
;
6184 /* Color testing. */
6186 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
6187 we use them when calling `tty_capable_p' below, even if the face
6188 specifies no colors. */
6189 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6190 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6192 /* Check if foreground color is close enough. */
6193 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
6196 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6198 if (face_attr_equal_p (fg
, def_fg
))
6199 return 0; /* same as default */
6200 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
6201 return 0; /* not a valid color */
6202 else if (color_distance (&fg_tty_color
, &fg_std_color
)
6203 > TTY_SAME_COLOR_THRESHOLD
)
6204 return 0; /* displayed color is too different */
6206 /* Make sure the color is really different than the default. */
6208 XColor def_fg_color
;
6209 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
6210 && (color_distance (&fg_tty_color
, &def_fg_color
)
6211 <= TTY_SAME_COLOR_THRESHOLD
))
6216 /* Check if background color is close enough. */
6217 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
6220 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6222 if (face_attr_equal_p (bg
, def_bg
))
6223 return 0; /* same as default */
6224 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6225 return 0; /* not a valid color */
6226 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6227 > TTY_SAME_COLOR_THRESHOLD
)
6228 return 0; /* displayed color is too different */
6230 /* Make sure the color is really different than the default. */
6232 XColor def_bg_color
;
6233 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6234 && (color_distance (&bg_tty_color
, &def_bg_color
)
6235 <= TTY_SAME_COLOR_THRESHOLD
))
6240 /* If both foreground and background are requested, see if the
6241 distance between them is OK. We just check to see if the distance
6242 between the tty's foreground and background is close enough to the
6243 distance between the standard foreground and background. */
6244 if (STRINGP (fg
) && STRINGP (bg
))
6247 = (color_distance (&fg_std_color
, &bg_std_color
)
6248 - color_distance (&fg_tty_color
, &bg_tty_color
));
6249 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6250 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6255 /* See if the capabilities we selected above are supported, with the
6257 if (test_caps
!= 0 &&
6258 ! tty_capable_p (f
, test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6262 /* Hmmm, everything checks out, this terminal must support this face. */
6267 DEFUN ("display-supports-face-attributes-p",
6268 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6270 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6271 The optional argument DISPLAY can be a display name, a frame, or
6272 nil (meaning the selected frame's display).
6274 The definition of `supported' is somewhat heuristic, but basically means
6275 that a face containing all the attributes in ATTRIBUTES, when merged
6276 with the default face for display, can be represented in a way that's
6278 \(1) different in appearance than the default face, and
6279 \(2) `close in spirit' to what the attributes specify, if not exact.
6281 Point (2) implies that a `:weight black' attribute will be satisfied by
6282 any display that can display bold, and a `:foreground \"yellow\"' as long
6283 as it can display a yellowish color, but `:slant italic' will _not_ be
6284 satisfied by the tty display code's automatic substitution of a `dim'
6285 face for italic. */)
6286 (attributes
, display
)
6287 Lisp_Object attributes
, display
;
6292 struct face
*def_face
;
6293 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6295 if (noninteractive
|| !initialized
)
6296 /* We may not be able to access low-level face information in batch
6297 mode, or before being dumped, and this function is not going to
6298 be very useful in those cases anyway, so just give up. */
6302 frame
= selected_frame
;
6303 else if (FRAMEP (display
))
6307 /* Find any frame on DISPLAY. */
6308 Lisp_Object fl_tail
;
6311 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6313 frame
= XCAR (fl_tail
);
6314 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6315 XFRAME (frame
)->param_alist
)),
6321 CHECK_LIVE_FRAME (frame
);
6324 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6325 attrs
[i
] = Qunspecified
;
6326 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6328 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6329 if (def_face
== NULL
)
6331 if (! realize_basic_faces (f
))
6332 error ("Cannot realize default face");
6333 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6336 /* Dispatch to the appropriate handler. */
6337 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6338 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6339 #ifdef HAVE_WINDOW_SYSTEM
6341 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6344 return supports
? Qt
: Qnil
;
6348 /***********************************************************************
6350 ***********************************************************************/
6352 DEFUN ("internal-set-font-selection-order",
6353 Finternal_set_font_selection_order
,
6354 Sinternal_set_font_selection_order
, 1, 1, 0,
6355 doc
: /* Set font selection order for face font selection to ORDER.
6356 ORDER must be a list of length 4 containing the symbols `:width',
6357 `:height', `:weight', and `:slant'. Face attributes appearing
6358 first in ORDER are matched first, e.g. if `:height' appears before
6359 `:weight' in ORDER, font selection first tries to find a font with
6360 a suitable height, and then tries to match the font weight.
6367 int indices
[DIM (font_sort_order
)];
6370 bzero (indices
, sizeof indices
);
6374 CONSP (list
) && i
< DIM (indices
);
6375 list
= XCDR (list
), ++i
)
6377 Lisp_Object attr
= XCAR (list
);
6380 if (EQ (attr
, QCwidth
))
6382 else if (EQ (attr
, QCheight
))
6383 xlfd
= XLFD_POINT_SIZE
;
6384 else if (EQ (attr
, QCweight
))
6386 else if (EQ (attr
, QCslant
))
6391 if (indices
[i
] != 0)
6396 if (!NILP (list
) || i
!= DIM (indices
))
6397 signal_error ("Invalid font sort order", order
);
6398 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6399 if (indices
[i
] == 0)
6400 signal_error ("Invalid font sort order", order
);
6402 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6404 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6405 free_all_realized_faces (Qnil
);
6412 DEFUN ("internal-set-alternative-font-family-alist",
6413 Finternal_set_alternative_font_family_alist
,
6414 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6415 doc
: /* Define alternative font families to try in face font selection.
6416 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6417 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6418 be found. Value is ALIST. */)
6423 Vface_alternative_font_family_alist
= alist
;
6424 free_all_realized_faces (Qnil
);
6429 DEFUN ("internal-set-alternative-font-registry-alist",
6430 Finternal_set_alternative_font_registry_alist
,
6431 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6432 doc
: /* Define alternative font registries to try in face font selection.
6433 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6434 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6435 be found. Value is ALIST. */)
6440 Vface_alternative_font_registry_alist
= alist
;
6441 free_all_realized_faces (Qnil
);
6446 #ifdef HAVE_WINDOW_SYSTEM
6448 /* Value is non-zero if FONT is the name of a scalable font. The
6449 X11R6 XLFD spec says that point size, pixel size, and average width
6450 are zero for scalable fonts. Intlfonts contain at least one
6451 scalable font ("*-muleindian-1") for which this isn't true, so we
6452 just test average width. */
6455 font_scalable_p (font
)
6456 struct font_name
*font
;
6458 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6459 return (*s
== '0' && *(s
+ 1) == '\0')
6461 /* Windows implementation of XLFD is slightly broken for backward
6462 compatibility with previous broken versions, so test for
6463 wildcards as well as 0. */
6470 /* Ignore the difference of font point size less than this value. */
6472 #define FONT_POINT_SIZE_QUANTUM 5
6474 /* Value is non-zero if FONT1 is a better match for font attributes
6475 VALUES than FONT2. VALUES is an array of face attribute values in
6476 font sort order. COMPARE_PT_P zero means don't compare point
6477 sizes. AVGWIDTH, if not zero, is a specified font average width
6481 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6483 struct font_name
*font1
, *font2
;
6484 int compare_pt_p
, avgwidth
;
6488 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6490 int xlfd_idx
= font_sort_order
[i
];
6492 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6496 if (xlfd_idx
== XLFD_POINT_SIZE
)
6498 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6499 / font1
->rescale_ratio
));
6500 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6501 / font2
->rescale_ratio
));
6502 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6507 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6508 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6511 if (delta1
> delta2
)
6513 else if (delta1
< delta2
)
6517 /* The difference may be equal because, e.g., the face
6518 specifies `italic' but we have only `regular' and
6519 `oblique'. Prefer `oblique' in this case. */
6520 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6521 && font1
->numeric
[xlfd_idx
] > values
[i
]
6522 && font2
->numeric
[xlfd_idx
] < values
[i
])
6530 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6531 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6532 if (delta1
> delta2
)
6534 else if (delta1
< delta2
)
6540 /* We prefer a real scalable font; i.e. not what autoscaled. */
6541 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6542 && font1
->numeric
[XLFD_RESY
] > 0);
6543 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6544 && font2
->numeric
[XLFD_RESY
] > 0);
6546 if (auto_scaled_1
!= auto_scaled_2
)
6547 return auto_scaled_2
;
6550 return font1
->registry_priority
< font2
->registry_priority
;
6554 /* Value is non-zero if FONT is an exact match for face attributes in
6555 SPECIFIED. SPECIFIED is an array of face attribute values in font
6556 sort order. AVGWIDTH, if non-zero, is an average width to compare
6560 exact_face_match_p (specified
, font
, avgwidth
)
6562 struct font_name
*font
;
6567 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6568 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6571 return (i
== DIM (font_sort_order
)
6573 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6577 /* Value is the name of a scaled font, generated from scalable font
6578 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6579 Value is allocated from heap. */
6582 build_scalable_font_name (f
, font
, specified_pt
)
6584 struct font_name
*font
;
6587 char pixel_size
[20];
6589 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6592 if (font
->numeric
[XLFD_PIXEL_SIZE
] != 0
6593 || font
->numeric
[XLFD_POINT_SIZE
] != 0)
6594 /* This is a scalable font but is requested for a specific size.
6595 We should not change that size. */
6596 return build_font_name (font
);
6598 /* If scalable font is for a specific resolution, compute
6599 the point size we must specify from the resolution of
6600 the display and the specified resolution of the font. */
6601 if (font
->numeric
[XLFD_RESY
] != 0)
6603 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6604 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6609 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
+ 0.5;
6611 /* We may need a font of the different size. */
6612 pixel_value
*= font
->rescale_ratio
;
6614 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6615 font of the specified PIXEL_SIZE. */
6617 { /* Set point size of the font. */
6618 char point_size
[20];
6619 sprintf (point_size
, "%d", (int) pt
);
6620 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6621 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6625 /* Set pixel size. */
6626 sprintf (pixel_size
, "%d", pixel_value
);
6627 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6628 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6630 /* If font doesn't specify its resolution, use the
6631 resolution of the display. */
6632 if (font
->numeric
[XLFD_RESY
] == 0)
6635 sprintf (buffer
, "%d", (int) resy
);
6636 font
->fields
[XLFD_RESY
] = buffer
;
6637 font
->numeric
[XLFD_RESY
] = resy
;
6640 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6643 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6644 sprintf (buffer
, "%d", resx
);
6645 font
->fields
[XLFD_RESX
] = buffer
;
6646 font
->numeric
[XLFD_RESX
] = resx
;
6649 return build_font_name (font
);
6653 /* Value is non-zero if we are allowed to use scalable font FONT. We
6654 can't run a Lisp function here since this function may be called
6655 with input blocked. */
6658 may_use_scalable_font_p (font
)
6661 if (EQ (Vscalable_fonts_allowed
, Qt
))
6663 else if (CONSP (Vscalable_fonts_allowed
))
6665 Lisp_Object tail
, regexp
;
6667 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6669 regexp
= XCAR (tail
);
6670 if (STRINGP (regexp
)
6671 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6681 /* Return the name of the best matching font for face attributes ATTRS
6682 in the array of font_name structures FONTS which contains NFONTS
6683 elements. WIDTH_RATIO is a factor with which to multiply average
6684 widths if ATTRS specifies such a width.
6686 Value is a font name which is allocated from the heap. FONTS is
6687 freed by this function.
6689 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6690 indicate whether the resulting font should be drawn using overstrike
6691 to simulate bold-face. */
6694 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6697 struct font_name
*fonts
;
6700 int *needs_overstrike
;
6703 struct font_name
*best
;
6706 int exact_p
, avgwidth
;
6711 /* Make specified font attributes available in `specified',
6712 indexed by sort order. */
6713 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6715 int xlfd_idx
= font_sort_order
[i
];
6717 if (xlfd_idx
== XLFD_SWIDTH
)
6718 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6719 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6720 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6721 else if (xlfd_idx
== XLFD_WEIGHT
)
6722 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6723 else if (xlfd_idx
== XLFD_SLANT
)
6724 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6729 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6731 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6735 if (needs_overstrike
)
6736 *needs_overstrike
= 0;
6738 /* Start with the first non-scalable font in the list. */
6739 for (i
= 0; i
< nfonts
; ++i
)
6740 if (!font_scalable_p (fonts
+ i
))
6743 /* Find the best match among the non-scalable fonts. */
6748 for (i
= 1; i
< nfonts
; ++i
)
6749 if (!font_scalable_p (fonts
+ i
)
6750 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6754 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6762 /* Unless we found an exact match among non-scalable fonts, see if
6763 we can find a better match among scalable fonts. */
6766 /* A scalable font is better if
6768 1. its weight, slant, swidth attributes are better, or.
6770 2. the best non-scalable font doesn't have the required
6771 point size, and the scalable fonts weight, slant, swidth
6774 int non_scalable_has_exact_height_p
;
6776 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6777 non_scalable_has_exact_height_p
= 1;
6779 non_scalable_has_exact_height_p
= 0;
6781 for (i
= 0; i
< nfonts
; ++i
)
6782 if (font_scalable_p (fonts
+ i
))
6785 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6786 || (!non_scalable_has_exact_height_p
6787 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6789 non_scalable_has_exact_height_p
= 1;
6794 if (needs_overstrike
)
6796 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6797 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6799 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6801 /* We want a bold font, but didn't get one; try to use
6802 overstriking instead to simulate bold-face. However,
6803 don't overstrike an already-bold fontn unless the
6804 desired weight grossly exceeds the available weight. */
6805 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6806 *needs_overstrike
= (got_weight
- want_weight
) > 2;
6808 *needs_overstrike
= 1;
6813 if (font_scalable_p (best
))
6814 font_name
= build_scalable_font_name (f
, best
, pt
);
6816 font_name
= build_font_name (best
);
6818 /* Free font_name structures. */
6819 free_font_names (fonts
, nfonts
);
6825 /* Get a list of matching fonts on frame F, considering FAMILY
6826 and alternative font families from Vface_alternative_font_registry_alist.
6828 FAMILY is the font family whose alternatives are considered.
6830 REGISTRY, if a string, specifies a font registry and encoding to
6831 match. A value of nil means include fonts of any registry and
6834 Return in *FONTS a pointer to a vector of font_name structures for
6835 the fonts matched. Value is the number of fonts found. */
6838 try_alternative_families (f
, family
, registry
, fonts
)
6840 Lisp_Object family
, registry
;
6841 struct font_name
**fonts
;
6846 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6849 /* Try alternative font families. */
6850 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6853 for (alter
= XCDR (alter
);
6854 CONSP (alter
) && nfonts
== 0;
6855 alter
= XCDR (alter
))
6857 if (STRINGP (XCAR (alter
)))
6858 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6862 /* Try all scalable fonts before giving up. */
6863 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6865 int count
= SPECPDL_INDEX ();
6866 specbind (Qscalable_fonts_allowed
, Qt
);
6867 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6868 unbind_to (count
, Qnil
);
6875 /* Get a list of matching fonts on frame F.
6877 PATTERN, if a string, specifies a font name pattern to match while
6878 ignoring FAMILY and REGISTRY.
6880 FAMILY, if a list, specifies a list of font families to try.
6882 REGISTRY, if a list, specifies a list of font registries and
6885 Return in *FONTS a pointer to a vector of font_name structures for
6886 the fonts matched. Value is the number of fonts found. */
6889 try_font_list (f
, pattern
, family
, registry
, fonts
)
6891 Lisp_Object pattern
, family
, registry
;
6892 struct font_name
**fonts
;
6896 if (STRINGP (pattern
))
6898 nfonts
= font_list (f
, pattern
, Qnil
, Qnil
, fonts
);
6899 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6901 int count
= SPECPDL_INDEX ();
6902 specbind (Qscalable_fonts_allowed
, Qt
);
6903 nfonts
= font_list (f
, pattern
, Qnil
, Qnil
, fonts
);
6904 unbind_to (count
, Qnil
);
6912 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
6914 for (tail
= family
; ! nfonts
&& CONSP (tail
); tail
= XCDR (tail
))
6915 nfonts
= try_alternative_families (f
, XCAR (tail
), registry
, fonts
);
6917 /* Try font family of the default face or "fixed". */
6918 if (nfonts
== 0 && !NILP (family
))
6920 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6922 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6924 family
= build_string ("fixed");
6925 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6928 /* Try any family with the given registry. */
6929 if (nfonts
== 0 && !NILP (family
))
6930 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6937 /* Return the fontset id of the base fontset name or alias name given
6938 by the fontset attribute of ATTRS. Value is -1 if the fontset
6939 attribute of ATTRS doesn't name a fontset. */
6942 face_fontset (attrs
)
6947 name
= attrs
[LFACE_FONTSET_INDEX
];
6948 if (!STRINGP (name
))
6950 return fs_query_fontset (name
, 0);
6954 /* Choose a name of font to use on frame F to display characters with
6955 Lisp face attributes specified by ATTRS. The font name is
6956 determined by the font-related attributes in ATTRS and FONT-SPEC
6959 When we are choosing a font for ASCII characters, FONT-SPEC is
6960 always nil. Otherwise FONT-SPEC is a list
6961 [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ]
6962 or a string specifying a font name pattern.
6964 If NEEDS_OVERSTRIKE is not NULL, a boolean is returned in it to
6965 indicate whether the resulting font should be drawn using
6966 overstrike to simulate bold-face.
6968 Value is the font name which is allocated from the heap and must be
6969 freed by the caller. */
6972 choose_face_font (f
, attrs
, font_spec
, needs_overstrike
)
6975 Lisp_Object font_spec
;
6976 int *needs_overstrike
;
6978 Lisp_Object pattern
, family
, adstyle
, registry
;
6979 char *font_name
= NULL
;
6980 struct font_name
*fonts
;
6983 if (needs_overstrike
)
6984 *needs_overstrike
= 0;
6986 /* If we are choosing an ASCII font and a font name is explicitly
6987 specified in ATTRS, return it. */
6988 if (NILP (font_spec
) && STRINGP (attrs
[LFACE_FONT_INDEX
]))
6989 return xstrdup (SDATA (attrs
[LFACE_FONT_INDEX
]));
6991 if (NILP (attrs
[LFACE_FAMILY_INDEX
]))
6994 family
= Fcons (attrs
[LFACE_FAMILY_INDEX
], Qnil
);
6996 /* Decide FAMILY, ADSTYLE, and REGISTRY from FONT_SPEC. But,
6997 ADSTYLE is not used in the font selector for the moment. */
6998 if (VECTORP (font_spec
))
7001 if (STRINGP (AREF (font_spec
, FONT_SPEC_FAMILY_INDEX
)))
7002 family
= Fcons (AREF (font_spec
, FONT_SPEC_FAMILY_INDEX
), family
);
7003 adstyle
= AREF (font_spec
, FONT_SPEC_ADSTYLE_INDEX
);
7004 registry
= Fcons (AREF (font_spec
, FONT_SPEC_REGISTRY_INDEX
), Qnil
);
7006 else if (STRINGP (font_spec
))
7008 pattern
= font_spec
;
7015 /* We are choosing an ASCII font. By default, use the registry
7016 name "iso8859-1". But, if the registry name of the ASCII
7017 font specified in the fontset of ATTRS is not "iso8859-1"
7018 (e.g "iso10646-1"), use also that name with higher
7020 int fontset
= face_fontset (attrs
);
7023 struct font_name font
;
7027 registry
= Fcons (build_string ("iso8859-1"), Qnil
);
7029 ascii
= fontset_ascii (fontset
);
7030 len
= SBYTES (ascii
);
7032 || strcmp (SDATA (ascii
) + len
- 9, "iso8859-1"))
7034 font
.name
= LSTRDUPA (ascii
);
7035 /* Check if the name is in XLFD. */
7036 if (split_font_name (f
, &font
, 0))
7038 font
.fields
[XLFD_ENCODING
][-1] = '-';
7039 registry
= Fcons (build_string (font
.fields
[XLFD_REGISTRY
]),
7045 /* Get a list of fonts matching that pattern and choose the
7046 best match for the specified face attributes from it. */
7047 nfonts
= try_font_list (f
, pattern
, family
, registry
, &fonts
);
7048 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, NILP (font_spec
),
7053 #endif /* HAVE_WINDOW_SYSTEM */
7057 /***********************************************************************
7059 ***********************************************************************/
7061 /* Realize basic faces on frame F. Value is zero if frame parameters
7062 of F don't contain enough information needed to realize the default
7066 realize_basic_faces (f
)
7070 int count
= SPECPDL_INDEX ();
7072 /* Block input here so that we won't be surprised by an X expose
7073 event, for instance, without having the faces set up. */
7075 specbind (Qscalable_fonts_allowed
, Qt
);
7077 if (realize_default_face (f
))
7079 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
7080 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
7081 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
7082 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
7083 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
7084 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
7085 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
7086 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
7087 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
7088 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
7089 realize_named_face (f
, Qvertical_border
, VERTICAL_BORDER_FACE_ID
);
7091 /* Reflect changes in the `menu' face in menu bars. */
7092 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
7094 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
7095 #ifdef USE_X_TOOLKIT
7096 x_update_menu_appearance (f
);
7103 unbind_to (count
, Qnil
);
7109 /* Realize the default face on frame F. If the face is not fully
7110 specified, make it fully-specified. Attributes of the default face
7111 that are not explicitly specified are taken from frame parameters. */
7114 realize_default_face (f
)
7117 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
7119 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7120 Lisp_Object frame_font
;
7123 /* If the `default' face is not yet known, create it. */
7124 lface
= lface_from_face_name (f
, Qdefault
, 0);
7128 XSETFRAME (frame
, f
);
7129 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
7133 #ifdef HAVE_WINDOW_SYSTEM
7134 if (FRAME_WINDOW_P (f
))
7136 /* Set frame_font to the value of the `font' frame parameter. */
7137 frame_font
= Fassq (Qfont
, f
->param_alist
);
7138 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
7139 frame_font
= XCDR (frame_font
);
7140 set_lface_from_font_name (f
, lface
, frame_font
,
7141 f
->default_face_done_p
, 1);
7142 f
->default_face_done_p
= 1;
7144 #endif /* HAVE_WINDOW_SYSTEM */
7146 if (!FRAME_WINDOW_P (f
))
7148 LFACE_FAMILY (lface
) = build_string ("default");
7149 LFACE_SWIDTH (lface
) = Qnormal
;
7150 LFACE_HEIGHT (lface
) = make_number (1);
7151 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
7152 LFACE_WEIGHT (lface
) = Qnormal
;
7153 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
7154 LFACE_SLANT (lface
) = Qnormal
;
7155 LFACE_AVGWIDTH (lface
) = Qunspecified
;
7158 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
7159 LFACE_UNDERLINE (lface
) = Qnil
;
7161 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
7162 LFACE_OVERLINE (lface
) = Qnil
;
7164 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
7165 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
7167 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
7168 LFACE_BOX (lface
) = Qnil
;
7170 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
7171 LFACE_INVERSE (lface
) = Qnil
;
7173 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
7175 /* This function is called so early that colors are not yet
7176 set in the frame parameter list. */
7177 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
7179 if (CONSP (color
) && STRINGP (XCDR (color
)))
7180 LFACE_FOREGROUND (lface
) = XCDR (color
);
7181 else if (FRAME_WINDOW_P (f
))
7183 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7184 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
7189 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
7191 /* This function is called so early that colors are not yet
7192 set in the frame parameter list. */
7193 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
7194 if (CONSP (color
) && STRINGP (XCDR (color
)))
7195 LFACE_BACKGROUND (lface
) = XCDR (color
);
7196 else if (FRAME_WINDOW_P (f
))
7198 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
7199 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
7204 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
7205 LFACE_STIPPLE (lface
) = Qnil
;
7207 /* Realize the face; it must be fully-specified now. */
7208 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
7209 check_lface (lface
);
7210 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
7211 face
= realize_face (c
, attrs
, DEFAULT_FACE_ID
);
7216 /* Realize basic faces other than the default face in face cache C.
7217 SYMBOL is the face name, ID is the face id the realized face must
7218 have. The default face must have been realized already. */
7221 realize_named_face (f
, symbol
, id
)
7226 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
7227 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
7228 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7229 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
7230 struct face
*new_face
;
7232 /* The default face must exist and be fully specified. */
7233 get_lface_attributes (f
, Qdefault
, attrs
, 1);
7234 check_lface_attrs (attrs
);
7235 xassert (lface_fully_specified_p (attrs
));
7237 /* If SYMBOL isn't know as a face, create it. */
7241 XSETFRAME (frame
, f
);
7242 lface
= Finternal_make_lisp_face (symbol
, frame
);
7245 /* Merge SYMBOL's face with the default face. */
7246 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
7247 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
7249 /* Realize the face. */
7250 new_face
= realize_face (c
, attrs
, id
);
7254 /* Realize the fully-specified face with attributes ATTRS in face
7255 cache CACHE for ASCII characters. If FORMER_FACE_ID is
7256 non-negative, it is an ID of face to remove before caching the new
7257 face. Value is a pointer to the newly created realized face. */
7259 static struct face
*
7260 realize_face (cache
, attrs
, former_face_id
)
7261 struct face_cache
*cache
;
7267 /* LFACE must be fully specified. */
7268 xassert (cache
!= NULL
);
7269 check_lface_attrs (attrs
);
7271 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7273 /* Remove the former face. */
7274 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7275 uncache_face (cache
, former_face
);
7276 free_realized_face (cache
->f
, former_face
);
7279 if (FRAME_WINDOW_P (cache
->f
))
7280 face
= realize_x_face (cache
, attrs
);
7281 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7282 face
= realize_tty_face (cache
, attrs
);
7286 /* Insert the new face. */
7287 cache_face (cache
, face
, lface_hash (attrs
));
7292 #ifdef HAVE_WINDOW_SYSTEM
7293 /* Realize the fully-specified face that has the same attributes as
7294 BASE_FACE except for the font on frame F. If FONT_ID is not
7295 negative, it is an ID number of an already opened font that should
7296 be used by the face. If FONT_ID is negative, the face has no font,
7297 i.e., characters are displayed by empty boxes. */
7299 static struct face
*
7300 realize_non_ascii_face (f
, font_id
, base_face
)
7303 struct face
*base_face
;
7305 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
7307 struct font_info
*font_info
;
7309 face
= (struct face
*) xmalloc (sizeof *face
);
7313 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7314 face
->colors_copied_bitwise_p
= 1;
7316 face
->font_info_id
= font_id
;
7319 font_info
= FONT_INFO_FROM_ID (f
, font_id
);
7320 face
->font
= font_info
->font
;
7321 face
->font_name
= font_info
->full_name
;
7326 face
->font_name
= NULL
;
7331 cache_face (cache
, face
, face
->hash
);
7335 #endif /* HAVE_WINDOW_SYSTEM */
7338 /* Realize the fully-specified face with attributes ATTRS in face
7339 cache CACHE for ASCII characters. Do it for X frame CACHE->f. If
7340 the new face doesn't share font with the default face, a fontname
7341 is allocated from the heap and set in `font_name' of the new face,
7342 but it is not yet loaded here. Value is a pointer to the newly
7343 created realized face. */
7345 static struct face
*
7346 realize_x_face (cache
, attrs
)
7347 struct face_cache
*cache
;
7350 struct face
*face
= NULL
;
7351 #ifdef HAVE_WINDOW_SYSTEM
7352 struct face
*default_face
;
7354 Lisp_Object stipple
, overline
, strike_through
, box
;
7356 xassert (FRAME_WINDOW_P (cache
->f
));
7358 /* Allocate a new realized face. */
7359 face
= make_realized_face (attrs
);
7360 face
->ascii_face
= face
;
7364 /* Determine the font to use. Most of the time, the font will be
7365 the same as the font of the default face, so try that first. */
7366 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7368 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7370 face
->font
= default_face
->font
;
7371 face
->font_info_id
= default_face
->font_info_id
;
7372 face
->font_name
= default_face
->font_name
;
7374 = make_fontset_for_ascii_face (f
, default_face
->fontset
, face
);
7378 /* If the face attribute ATTRS specifies a fontset, use it as
7379 the base of a new realized fontset. Otherwise, use the same
7380 base fontset as of the default face. The base determines
7381 registry and encoding of a font. It may also determine
7382 foundry and family. The other fields of font name pattern
7383 are constructed from ATTRS. */
7384 int fontset
= face_fontset (attrs
);
7386 /* If we are realizing the default face, ATTRS should specify a
7387 fontset. In other words, if FONTSET is -1, we are not
7388 realizing the default face, thus the default face should have
7389 already been realized. */
7391 fontset
= default_face
->fontset
;
7394 load_face_font (f
, face
);
7395 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
, face
);
7398 /* Load colors, and set remaining attributes. */
7400 load_face_colors (f
, face
, attrs
);
7403 box
= attrs
[LFACE_BOX_INDEX
];
7406 /* A simple box of line width 1 drawn in color given by
7408 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7410 face
->box
= FACE_SIMPLE_BOX
;
7411 face
->box_line_width
= 1;
7413 else if (INTEGERP (box
))
7415 /* Simple box of specified line width in foreground color of the
7417 xassert (XINT (box
) != 0);
7418 face
->box
= FACE_SIMPLE_BOX
;
7419 face
->box_line_width
= XINT (box
);
7420 face
->box_color
= face
->foreground
;
7421 face
->box_color_defaulted_p
= 1;
7423 else if (CONSP (box
))
7425 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7426 being one of `raised' or `sunken'. */
7427 face
->box
= FACE_SIMPLE_BOX
;
7428 face
->box_color
= face
->foreground
;
7429 face
->box_color_defaulted_p
= 1;
7430 face
->box_line_width
= 1;
7434 Lisp_Object keyword
, value
;
7436 keyword
= XCAR (box
);
7444 if (EQ (keyword
, QCline_width
))
7446 if (INTEGERP (value
) && XINT (value
) != 0)
7447 face
->box_line_width
= XINT (value
);
7449 else if (EQ (keyword
, QCcolor
))
7451 if (STRINGP (value
))
7453 face
->box_color
= load_color (f
, face
, value
,
7455 face
->use_box_color_for_shadows_p
= 1;
7458 else if (EQ (keyword
, QCstyle
))
7460 if (EQ (value
, Qreleased_button
))
7461 face
->box
= FACE_RAISED_BOX
;
7462 else if (EQ (value
, Qpressed_button
))
7463 face
->box
= FACE_SUNKEN_BOX
;
7468 /* Text underline, overline, strike-through. */
7470 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7472 /* Use default color (same as foreground color). */
7473 face
->underline_p
= 1;
7474 face
->underline_defaulted_p
= 1;
7475 face
->underline_color
= 0;
7477 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7479 /* Use specified color. */
7480 face
->underline_p
= 1;
7481 face
->underline_defaulted_p
= 0;
7482 face
->underline_color
7483 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7484 LFACE_UNDERLINE_INDEX
);
7486 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7488 face
->underline_p
= 0;
7489 face
->underline_defaulted_p
= 0;
7490 face
->underline_color
= 0;
7493 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7494 if (STRINGP (overline
))
7496 face
->overline_color
7497 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7498 LFACE_OVERLINE_INDEX
);
7499 face
->overline_p
= 1;
7501 else if (EQ (overline
, Qt
))
7503 face
->overline_color
= face
->foreground
;
7504 face
->overline_color_defaulted_p
= 1;
7505 face
->overline_p
= 1;
7508 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7509 if (STRINGP (strike_through
))
7511 face
->strike_through_color
7512 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7513 LFACE_STRIKE_THROUGH_INDEX
);
7514 face
->strike_through_p
= 1;
7516 else if (EQ (strike_through
, Qt
))
7518 face
->strike_through_color
= face
->foreground
;
7519 face
->strike_through_color_defaulted_p
= 1;
7520 face
->strike_through_p
= 1;
7523 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7524 if (!NILP (stipple
))
7525 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7526 #endif /* HAVE_WINDOW_SYSTEM */
7532 /* Map a specified color of face FACE on frame F to a tty color index.
7533 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7534 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7535 default foreground/background colors. */
7538 map_tty_color (f
, face
, idx
, defaulted
)
7541 enum lface_attribute_index idx
;
7544 Lisp_Object frame
, color
, def
;
7545 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7546 unsigned long default_pixel
, default_other_pixel
, pixel
;
7548 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7552 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7553 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7557 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7558 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7561 XSETFRAME (frame
, f
);
7562 color
= face
->lface
[idx
];
7566 && CONSP (Vtty_defined_color_alist
)
7567 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7570 /* Associations in tty-defined-color-alist are of the form
7571 (NAME INDEX R G B). We need the INDEX part. */
7572 pixel
= XINT (XCAR (XCDR (def
)));
7575 if (pixel
== default_pixel
&& STRINGP (color
))
7577 pixel
= load_color (f
, face
, color
, idx
);
7579 #if defined (MSDOS) || defined (WINDOWSNT)
7580 /* If the foreground of the default face is the default color,
7581 use the foreground color defined by the frame. */
7583 if (FRAME_MSDOS_P (f
))
7586 if (pixel
== default_pixel
7587 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7590 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7592 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7593 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7596 else if (pixel
== default_other_pixel
)
7599 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7601 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7602 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7608 #endif /* MSDOS or WINDOWSNT */
7612 face
->foreground
= pixel
;
7614 face
->background
= pixel
;
7618 /* Realize the fully-specified face with attributes ATTRS in face
7619 cache CACHE for ASCII characters. Do it for TTY frame CACHE->f.
7620 Value is a pointer to the newly created realized face. */
7622 static struct face
*
7623 realize_tty_face (cache
, attrs
)
7624 struct face_cache
*cache
;
7629 int face_colors_defaulted
= 0;
7630 struct frame
*f
= cache
->f
;
7632 /* Frame must be a termcap frame. */
7633 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7635 /* Allocate a new realized face. */
7636 face
= make_realized_face (attrs
);
7637 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7639 /* Map face attributes to TTY appearances. We map slant to
7640 dimmed text because we want italic text to appear differently
7641 and because dimmed text is probably used infrequently. */
7642 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7643 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7645 if (weight
> XLFD_WEIGHT_MEDIUM
)
7646 face
->tty_bold_p
= 1;
7647 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7648 face
->tty_dim_p
= 1;
7649 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7650 face
->tty_underline_p
= 1;
7651 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7652 face
->tty_reverse_p
= 1;
7654 /* Map color names to color indices. */
7655 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7656 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7658 /* Swap colors if face is inverse-video. If the colors are taken
7659 from the frame colors, they are already inverted, since the
7660 frame-creation function calls x-handle-reverse-video. */
7661 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7663 unsigned long tem
= face
->foreground
;
7664 face
->foreground
= face
->background
;
7665 face
->background
= tem
;
7668 if (tty_suppress_bold_inverse_default_colors_p
7670 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7671 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7672 face
->tty_bold_p
= 0;
7678 DEFUN ("tty-suppress-bold-inverse-default-colors",
7679 Ftty_suppress_bold_inverse_default_colors
,
7680 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7681 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7682 SUPPRESS non-nil means suppress it.
7683 This affects bold faces on TTYs whose foreground is the default background
7684 color of the display and whose background is the default foreground color.
7685 For such faces, the bold face attribute is ignored if this variable
7688 Lisp_Object suppress
;
7690 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7691 ++face_change_count
;
7697 /***********************************************************************
7699 ***********************************************************************/
7701 /* Return the ID of the face to use to display character CH with face
7702 property PROP on frame F in current_buffer. */
7705 compute_char_face (f
, ch
, prop
)
7712 if (NILP (current_buffer
->enable_multibyte_characters
))
7717 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7718 face_id
= FACE_FOR_CHAR (f
, face
, ch
, -1, Qnil
);
7722 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7723 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7724 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7725 merge_face_ref (f
, prop
, attrs
, 1, 0);
7726 face_id
= lookup_face (f
, attrs
);
7732 /* Return the face ID associated with buffer position POS for
7733 displaying ASCII characters. Return in *ENDPTR the position at
7734 which a different face is needed, as far as text properties and
7735 overlays are concerned. W is a window displaying current_buffer.
7737 REGION_BEG, REGION_END delimit the region, so it can be
7740 LIMIT is a position not to scan beyond. That is to limit the time
7741 this function can take.
7743 If MOUSE is non-zero, use the character's mouse-face, not its face.
7745 The face returned is suitable for displaying ASCII characters. */
7748 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7749 endptr
, limit
, mouse
)
7752 int region_beg
, region_end
;
7757 struct frame
*f
= XFRAME (w
->frame
);
7758 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7759 Lisp_Object prop
, position
;
7761 Lisp_Object
*overlay_vec
;
7764 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7765 Lisp_Object limit1
, end
;
7766 struct face
*default_face
;
7768 /* W must display the current buffer. We could write this function
7769 to use the frame and buffer of W, but right now it doesn't. */
7770 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7772 XSETFRAME (frame
, f
);
7773 XSETFASTINT (position
, pos
);
7776 if (pos
< region_beg
&& region_beg
< endpos
)
7777 endpos
= region_beg
;
7779 /* Get the `face' or `mouse_face' text property at POS, and
7780 determine the next position at which the property changes. */
7781 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7782 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7783 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7785 endpos
= XINT (end
);
7787 /* Look at properties from overlays. */
7791 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7792 if (next_overlay
< endpos
)
7793 endpos
= next_overlay
;
7798 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7800 /* Optimize common cases where we can use the default face. */
7803 && !(pos
>= region_beg
&& pos
< region_end
))
7804 return DEFAULT_FACE_ID
;
7806 /* Begin with attributes from the default face. */
7807 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7809 /* Merge in attributes specified via text properties. */
7811 merge_face_ref (f
, prop
, attrs
, 1, 0);
7813 /* Now merge the overlay data. */
7814 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7815 for (i
= 0; i
< noverlays
; i
++)
7820 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7822 merge_face_ref (f
, prop
, attrs
, 1, 0);
7824 oend
= OVERLAY_END (overlay_vec
[i
]);
7825 oendpos
= OVERLAY_POSITION (oend
);
7826 if (oendpos
< endpos
)
7830 /* If in the region, merge in the region face. */
7831 if (pos
>= region_beg
&& pos
< region_end
)
7833 merge_named_face (f
, Qregion
, attrs
, 0);
7835 if (region_end
< endpos
)
7836 endpos
= region_end
;
7841 /* Look up a realized face with the given face attributes,
7842 or realize a new one for ASCII characters. */
7843 return lookup_face (f
, attrs
);
7847 /* Compute the face at character position POS in Lisp string STRING on
7848 window W, for ASCII characters.
7850 If STRING is an overlay string, it comes from position BUFPOS in
7851 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7852 not an overlay string. W must display the current buffer.
7853 REGION_BEG and REGION_END give the start and end positions of the
7854 region; both are -1 if no region is visible.
7856 BASE_FACE_ID is the id of a face to merge with. For strings coming
7857 from overlays or the `display' property it is the face at BUFPOS.
7859 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7861 Set *ENDPTR to the next position where to check for faces in
7862 STRING; -1 if the face is constant from POS to the end of the
7865 Value is the id of the face to use. The face returned is suitable
7866 for displaying ASCII characters. */
7869 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7870 region_end
, endptr
, base_face_id
, mouse_p
)
7874 int region_beg
, region_end
;
7876 enum face_id base_face_id
;
7879 Lisp_Object prop
, position
, end
, limit
;
7880 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7881 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7882 struct face
*base_face
;
7883 int multibyte_p
= STRING_MULTIBYTE (string
);
7884 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7886 /* Get the value of the face property at the current position within
7887 STRING. Value is nil if there is no face property. */
7888 XSETFASTINT (position
, pos
);
7889 prop
= Fget_text_property (position
, prop_name
, string
);
7891 /* Get the next position at which to check for faces. Value of end
7892 is nil if face is constant all the way to the end of the string.
7893 Otherwise it is a string position where to check faces next.
7894 Limit is the maximum position up to which to check for property
7895 changes in Fnext_single_property_change. Strings are usually
7896 short, so set the limit to the end of the string. */
7897 XSETFASTINT (limit
, SCHARS (string
));
7898 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7900 *endptr
= XFASTINT (end
);
7904 base_face
= FACE_FROM_ID (f
, base_face_id
);
7905 xassert (base_face
);
7907 /* Optimize the default case that there is no face property and we
7908 are not in the region. */
7910 && (base_face_id
!= DEFAULT_FACE_ID
7911 /* BUFPOS <= 0 means STRING is not an overlay string, so
7912 that the region doesn't have to be taken into account. */
7914 || bufpos
< region_beg
7915 || bufpos
>= region_end
)
7917 /* We can't realize faces for different charsets differently
7918 if we don't have fonts, so we can stop here if not working
7919 on a window-system frame. */
7920 || !FRAME_WINDOW_P (f
)
7921 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7922 return base_face
->id
;
7924 /* Begin with attributes from the base face. */
7925 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7927 /* Merge in attributes specified via text properties. */
7929 merge_face_ref (f
, prop
, attrs
, 1, 0);
7931 /* If in the region, merge in the region face. */
7933 && bufpos
>= region_beg
7934 && bufpos
< region_end
)
7935 merge_named_face (f
, Qregion
, attrs
, 0);
7937 /* Look up a realized face with the given face attributes,
7938 or realize a new one for ASCII characters. */
7939 return lookup_face (f
, attrs
);
7943 /* Merge a face into a realized face.
7945 F is frame where faces are (to be) realized.
7947 FACE_NAME is named face to merge.
7949 If FACE_NAME is nil, FACE_ID is face_id of realized face to merge.
7951 If FACE_NAME is t, FACE_ID is lface_id of face to merge.
7953 BASE_FACE_ID is realized face to merge into.
7959 merge_faces (f
, face_name
, face_id
, base_face_id
)
7961 Lisp_Object face_name
;
7962 int face_id
, base_face_id
;
7964 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7965 struct face
*base_face
;
7967 base_face
= FACE_FROM_ID (f
, base_face_id
);
7969 return base_face_id
;
7971 if (EQ (face_name
, Qt
))
7973 if (face_id
< 0 || face_id
>= lface_id_to_name_size
)
7974 return base_face_id
;
7975 face_name
= lface_id_to_name
[face_id
];
7976 face_id
= lookup_derived_face (f
, face_name
, base_face_id
, 1);
7979 return base_face_id
;
7982 /* Begin with attributes from the base face. */
7983 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7985 if (!NILP (face_name
))
7987 if (!merge_named_face (f
, face_name
, attrs
, 0))
7988 return base_face_id
;
7994 return base_face_id
;
7995 face
= FACE_FROM_ID (f
, face_id
);
7997 return base_face_id
;
7998 merge_face_vectors (f
, face
->lface
, attrs
, 0);
8001 /* Look up a realized face with the given face attributes,
8002 or realize a new one for ASCII characters. */
8003 return lookup_face (f
, attrs
);
8007 /***********************************************************************
8009 ***********************************************************************/
8013 /* Print the contents of the realized face FACE to stderr. */
8016 dump_realized_face (face
)
8019 fprintf (stderr
, "ID: %d\n", face
->id
);
8020 #ifdef HAVE_X_WINDOWS
8021 fprintf (stderr
, "gc: %ld\n", (long) face
->gc
);
8023 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
8025 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
8026 fprintf (stderr
, "background: 0x%lx (%s)\n",
8028 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
8029 fprintf (stderr
, "font_name: %s (%s)\n",
8031 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
8032 #ifdef HAVE_X_WINDOWS
8033 fprintf (stderr
, "font = %p\n", face
->font
);
8035 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
8036 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
8037 fprintf (stderr
, "underline: %d (%s)\n",
8039 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
8040 fprintf (stderr
, "hash: %d\n", face
->hash
);
8044 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
8052 fprintf (stderr
, "font selection order: ");
8053 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
8054 fprintf (stderr
, "%d ", font_sort_order
[i
]);
8055 fprintf (stderr
, "\n");
8057 fprintf (stderr
, "alternative fonts: ");
8058 debug_print (Vface_alternative_font_family_alist
);
8059 fprintf (stderr
, "\n");
8061 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
8062 Fdump_face (make_number (i
));
8068 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
8070 error ("Not a valid face");
8071 dump_realized_face (face
);
8078 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
8079 0, 0, 0, doc
: /* */)
8082 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
8083 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
8084 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
8088 #endif /* GLYPH_DEBUG != 0 */
8092 /***********************************************************************
8094 ***********************************************************************/
8099 Qface
= intern ("face");
8101 Qface_no_inherit
= intern ("face-no-inherit");
8102 staticpro (&Qface_no_inherit
);
8103 Qbitmap_spec_p
= intern ("bitmap-spec-p");
8104 staticpro (&Qbitmap_spec_p
);
8105 Qframe_set_background_mode
= intern ("frame-set-background-mode");
8106 staticpro (&Qframe_set_background_mode
);
8108 /* Lisp face attribute keywords. */
8109 QCfamily
= intern (":family");
8110 staticpro (&QCfamily
);
8111 QCheight
= intern (":height");
8112 staticpro (&QCheight
);
8113 QCweight
= intern (":weight");
8114 staticpro (&QCweight
);
8115 QCslant
= intern (":slant");
8116 staticpro (&QCslant
);
8117 QCunderline
= intern (":underline");
8118 staticpro (&QCunderline
);
8119 QCinverse_video
= intern (":inverse-video");
8120 staticpro (&QCinverse_video
);
8121 QCreverse_video
= intern (":reverse-video");
8122 staticpro (&QCreverse_video
);
8123 QCforeground
= intern (":foreground");
8124 staticpro (&QCforeground
);
8125 QCbackground
= intern (":background");
8126 staticpro (&QCbackground
);
8127 QCstipple
= intern (":stipple");;
8128 staticpro (&QCstipple
);
8129 QCwidth
= intern (":width");
8130 staticpro (&QCwidth
);
8131 QCfont
= intern (":font");
8132 staticpro (&QCfont
);
8133 QCfontset
= intern (":fontset");
8134 staticpro (&QCfontset
);
8135 QCbold
= intern (":bold");
8136 staticpro (&QCbold
);
8137 QCitalic
= intern (":italic");
8138 staticpro (&QCitalic
);
8139 QCoverline
= intern (":overline");
8140 staticpro (&QCoverline
);
8141 QCstrike_through
= intern (":strike-through");
8142 staticpro (&QCstrike_through
);
8143 QCbox
= intern (":box");
8145 QCinherit
= intern (":inherit");
8146 staticpro (&QCinherit
);
8148 /* Symbols used for Lisp face attribute values. */
8149 QCcolor
= intern (":color");
8150 staticpro (&QCcolor
);
8151 QCline_width
= intern (":line-width");
8152 staticpro (&QCline_width
);
8153 QCstyle
= intern (":style");
8154 staticpro (&QCstyle
);
8155 Qreleased_button
= intern ("released-button");
8156 staticpro (&Qreleased_button
);
8157 Qpressed_button
= intern ("pressed-button");
8158 staticpro (&Qpressed_button
);
8159 Qnormal
= intern ("normal");
8160 staticpro (&Qnormal
);
8161 Qultra_light
= intern ("ultra-light");
8162 staticpro (&Qultra_light
);
8163 Qextra_light
= intern ("extra-light");
8164 staticpro (&Qextra_light
);
8165 Qlight
= intern ("light");
8166 staticpro (&Qlight
);
8167 Qsemi_light
= intern ("semi-light");
8168 staticpro (&Qsemi_light
);
8169 Qsemi_bold
= intern ("semi-bold");
8170 staticpro (&Qsemi_bold
);
8171 Qbold
= intern ("bold");
8173 Qextra_bold
= intern ("extra-bold");
8174 staticpro (&Qextra_bold
);
8175 Qultra_bold
= intern ("ultra-bold");
8176 staticpro (&Qultra_bold
);
8177 Qoblique
= intern ("oblique");
8178 staticpro (&Qoblique
);
8179 Qitalic
= intern ("italic");
8180 staticpro (&Qitalic
);
8181 Qreverse_oblique
= intern ("reverse-oblique");
8182 staticpro (&Qreverse_oblique
);
8183 Qreverse_italic
= intern ("reverse-italic");
8184 staticpro (&Qreverse_italic
);
8185 Qultra_condensed
= intern ("ultra-condensed");
8186 staticpro (&Qultra_condensed
);
8187 Qextra_condensed
= intern ("extra-condensed");
8188 staticpro (&Qextra_condensed
);
8189 Qcondensed
= intern ("condensed");
8190 staticpro (&Qcondensed
);
8191 Qsemi_condensed
= intern ("semi-condensed");
8192 staticpro (&Qsemi_condensed
);
8193 Qsemi_expanded
= intern ("semi-expanded");
8194 staticpro (&Qsemi_expanded
);
8195 Qexpanded
= intern ("expanded");
8196 staticpro (&Qexpanded
);
8197 Qextra_expanded
= intern ("extra-expanded");
8198 staticpro (&Qextra_expanded
);
8199 Qultra_expanded
= intern ("ultra-expanded");
8200 staticpro (&Qultra_expanded
);
8201 Qbackground_color
= intern ("background-color");
8202 staticpro (&Qbackground_color
);
8203 Qforeground_color
= intern ("foreground-color");
8204 staticpro (&Qforeground_color
);
8205 Qunspecified
= intern ("unspecified");
8206 staticpro (&Qunspecified
);
8208 Qface_alias
= intern ("face-alias");
8209 staticpro (&Qface_alias
);
8210 Qdefault
= intern ("default");
8211 staticpro (&Qdefault
);
8212 Qtool_bar
= intern ("tool-bar");
8213 staticpro (&Qtool_bar
);
8214 Qregion
= intern ("region");
8215 staticpro (&Qregion
);
8216 Qfringe
= intern ("fringe");
8217 staticpro (&Qfringe
);
8218 Qheader_line
= intern ("header-line");
8219 staticpro (&Qheader_line
);
8220 Qscroll_bar
= intern ("scroll-bar");
8221 staticpro (&Qscroll_bar
);
8222 Qmenu
= intern ("menu");
8224 Qcursor
= intern ("cursor");
8225 staticpro (&Qcursor
);
8226 Qborder
= intern ("border");
8227 staticpro (&Qborder
);
8228 Qmouse
= intern ("mouse");
8229 staticpro (&Qmouse
);
8230 Qmode_line_inactive
= intern ("mode-line-inactive");
8231 staticpro (&Qmode_line_inactive
);
8232 Qvertical_border
= intern ("vertical-border");
8233 staticpro (&Qvertical_border
);
8234 Qtty_color_desc
= intern ("tty-color-desc");
8235 staticpro (&Qtty_color_desc
);
8236 Qtty_color_standard_values
= intern ("tty-color-standard-values");
8237 staticpro (&Qtty_color_standard_values
);
8238 Qtty_color_by_index
= intern ("tty-color-by-index");
8239 staticpro (&Qtty_color_by_index
);
8240 Qtty_color_alist
= intern ("tty-color-alist");
8241 staticpro (&Qtty_color_alist
);
8242 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
8243 staticpro (&Qscalable_fonts_allowed
);
8245 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
8246 staticpro (&Vparam_value_alist
);
8247 Vface_alternative_font_family_alist
= Qnil
;
8248 staticpro (&Vface_alternative_font_family_alist
);
8249 Vface_alternative_font_registry_alist
= Qnil
;
8250 staticpro (&Vface_alternative_font_registry_alist
);
8252 defsubr (&Sinternal_make_lisp_face
);
8253 defsubr (&Sinternal_lisp_face_p
);
8254 defsubr (&Sinternal_set_lisp_face_attribute
);
8255 #ifdef HAVE_WINDOW_SYSTEM
8256 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
8258 defsubr (&Scolor_gray_p
);
8259 defsubr (&Scolor_supported_p
);
8260 defsubr (&Sface_attribute_relative_p
);
8261 defsubr (&Smerge_face_attribute
);
8262 defsubr (&Sinternal_get_lisp_face_attribute
);
8263 defsubr (&Sinternal_lisp_face_attribute_values
);
8264 defsubr (&Sinternal_lisp_face_equal_p
);
8265 defsubr (&Sinternal_lisp_face_empty_p
);
8266 defsubr (&Sinternal_copy_lisp_face
);
8267 defsubr (&Sinternal_merge_in_global_face
);
8268 defsubr (&Sface_font
);
8269 defsubr (&Sframe_face_alist
);
8270 defsubr (&Sdisplay_supports_face_attributes_p
);
8271 defsubr (&Scolor_distance
);
8272 defsubr (&Sinternal_set_font_selection_order
);
8273 defsubr (&Sinternal_set_alternative_font_family_alist
);
8274 defsubr (&Sinternal_set_alternative_font_registry_alist
);
8275 defsubr (&Sface_attributes_as_vector
);
8277 defsubr (&Sdump_face
);
8278 defsubr (&Sshow_face_resources
);
8279 #endif /* GLYPH_DEBUG */
8280 defsubr (&Sclear_face_cache
);
8281 defsubr (&Stty_suppress_bold_inverse_default_colors
);
8283 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
8284 defsubr (&Sdump_colors
);
8287 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
8288 doc
: /* *Limit for font matching.
8289 If an integer > 0, font matching functions won't load more than
8290 that number of fonts when searching for a matching font. */);
8291 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
8293 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
8294 doc
: /* List of global face definitions (for internal use only.) */);
8295 Vface_new_frame_defaults
= Qnil
;
8297 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
8298 doc
: /* *Default stipple pattern used on monochrome displays.
8299 This stipple pattern is used on monochrome displays
8300 instead of shades of gray for a face background color.
8301 See `set-face-stipple' for possible values for this variable. */);
8302 Vface_default_stipple
= build_string ("gray3");
8304 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
8305 doc
: /* An alist of defined terminal colors and their RGB values. */);
8306 Vtty_defined_color_alist
= Qnil
;
8308 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
8309 doc
: /* Allowed scalable fonts.
8310 A value of nil means don't allow any scalable fonts.
8311 A value of t means allow any scalable font.
8312 Otherwise, value must be a list of regular expressions. A font may be
8313 scaled if its name matches a regular expression in the list.
8314 Note that if value is nil, a scalable font might still be used, if no
8315 other font of the appropriate family and registry is available. */);
8316 Vscalable_fonts_allowed
= Qnil
;
8318 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
8319 doc
: /* List of ignored fonts.
8320 Each element is a regular expression that matches names of fonts to
8322 Vface_ignored_fonts
= Qnil
;
8324 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
8325 doc
: /* Alist of fonts vs the rescaling factors.
8326 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
8327 FONT-NAME-PATTERN is a regular expression matching a font name, and
8328 RESCALE-RATIO is a floating point number to specify how much larger
8329 \(or smaller) font we should use. For instance, if a face requests
8330 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
8331 Vface_font_rescale_alist
= Qnil
;
8333 #ifdef HAVE_WINDOW_SYSTEM
8334 defsubr (&Sbitmap_spec_p
);
8335 defsubr (&Sx_list_fonts
);
8336 defsubr (&Sinternal_face_x_get_resource
);
8337 defsubr (&Sx_family_fonts
);
8338 defsubr (&Sx_font_family_list
);
8339 #endif /* HAVE_WINDOW_SYSTEM */
8342 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
8343 (do not change this comment) */