1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
26 When using Emacs with X, the display style of characters can be
27 changed by defining `faces'. Each face can specify the following
32 2. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 3. Font height in 1/10pt.
37 4. Font weight, e.g. `bold'.
39 5. Font slant, e.g. `italic'.
45 8. Whether or not characters should be underlined, and in what color.
47 9. Whether or not characters should be displayed in inverse video.
49 10. A background stipple, a bitmap.
51 11. Whether or not characters should be overlined, and in what color.
53 12. Whether or not characters should be strike-through, and in what
56 13. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 14. Font or fontset pattern, or nil. This is a special attribute.
60 When this attribute is specified, the face uses a font opened by
61 that pattern as is. In addition, all the other font-related
62 attributes (1st thru 5th) are generated from the opened font name.
63 On the other hand, if one of the other font-related attributes are
64 specified, this attribute is set to nil. In that case, the face
65 doesn't inherit this attribute from the `default' face, and uses a
66 font determined by the other attributes (those may be inherited
67 from the `default' face).
69 15. A face name or list of face names from which to inherit attributes.
71 16. A specified average font width, which is invisible from Lisp,
72 and is used to ensure that a font specified on the command line,
73 for example, can be matched exactly.
75 Faces are frame-local by nature because Emacs allows to define the
76 same named face (face names are symbols) differently for different
77 frames. Each frame has an alist of face definitions for all named
78 faces. The value of a named face in such an alist is a Lisp vector
79 with the symbol `face' in slot 0, and a slot for each of the face
80 attributes mentioned above.
82 There is also a global face alist `Vface_new_frame_defaults'. Face
83 definitions from this list are used to initialize faces of newly
86 A face doesn't have to specify all attributes. Those not specified
87 have a value of `unspecified'. Faces specifying all attributes but
88 the 14th are called `fully-specified'.
93 The display style of a given character in the text is determined by
94 combining several faces. This process is called `face merging'.
95 Any aspect of the display style that isn't specified by overlays or
96 text properties is taken from the `default' face. Since it is made
97 sure that the default face is always fully-specified, face merging
98 always results in a fully-specified face.
103 After all face attributes for a character have been determined by
104 merging faces of that character, that face is `realized'. The
105 realization process maps face attributes to what is physically
106 available on the system where Emacs runs. The result is a
107 `realized face' in form of a struct face which is stored in the
108 face cache of the frame on which it was realized.
110 Face realization is done in the context of the character to display
111 because different fonts may be used for different characters. In
112 other words, for characters that have different font
113 specifications, different realized faces are needed to display
116 Font specification is done by fontsets. See the comment in
117 fontset.c for the details. In the current implementation, all ASCII
118 characters share the same font in a fontset.
120 Faces are at first realized for ASCII characters, and, at that
121 time, assigned a specific realized fontset. Hereafter, we call
122 such a face as `ASCII face'. When a face for a multibyte character
123 is realized, it inherits (thus shares) a fontset of an ASCII face
124 that has the same attributes other than font-related ones.
126 Thus, all realized face have a realized fontset.
131 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
132 font as ASCII characters. That is because it is expected that
133 unibyte text users specify a font that is suitable both for ASCII
134 and raw 8-bit characters.
139 Font selection tries to find the best available matching font for a
140 given (character, face) combination.
142 If the face specifies a fontset name, that fontset determines a
143 pattern for fonts of the given character. If the face specifies a
144 font name or the other font-related attributes, a fontset is
145 realized from the default fontset. In that case, that
146 specification determines a pattern for ASCII characters and the
147 default fontset determines a pattern for multibyte characters.
149 Available fonts on the system on which Emacs runs are then matched
150 against the font pattern. The result of font selection is the best
151 match for the given face attributes in this font list.
153 Font selection can be influenced by the user.
155 1. The user can specify the relative importance he gives the face
156 attributes width, height, weight, and slant by setting
157 face-font-selection-order (faces.el) to a list of face attribute
158 names. The default is '(:width :height :weight :slant), and means
159 that font selection first tries to find a good match for the font
160 width specified by a face, then---within fonts with that
161 width---tries to find a best match for the specified font height,
164 2. Setting face-font-family-alternatives allows the user to
165 specify alternative font families to try if a family specified by a
168 3. Setting face-font-registry-alternatives allows the user to
169 specify all alternative font registries to try for a face
170 specifying a registry.
172 4. Setting face-ignored-fonts allows the user to ignore specific
176 Character composition.
178 Usually, the realization process is already finished when Emacs
179 actually reflects the desired glyph matrix on the screen. However,
180 on displaying a composition (sequence of characters to be composed
181 on the screen), a suitable font for the components of the
182 composition is selected and realized while drawing them on the
183 screen, i.e. the realization process is delayed but in principle
187 Initialization of basic faces.
189 The faces `default', `modeline' are considered `basic faces'.
190 When redisplay happens the first time for a newly created frame,
191 basic faces are realized for CHARSET_ASCII. Frame parameters are
192 used to fill in unspecified attributes of the default face. */
196 #include <sys/types.h>
197 #include <sys/stat.h>
198 #include <stdio.h> /* This needs to be before termchar.h */
202 #include "keyboard.h"
204 #include "termhooks.h"
206 #ifdef HAVE_WINDOW_SYSTEM
208 #endif /* HAVE_WINDOW_SYSTEM */
210 #ifdef HAVE_X_WINDOWS
214 #include <Xm/XmStrDefs.h>
215 #endif /* USE_MOTIF */
216 #endif /* HAVE_X_WINDOWS */
225 /* Redefine X specifics to W32 equivalents to avoid cluttering the
226 code with #ifdef blocks. */
227 #undef FRAME_X_DISPLAY_INFO
228 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
229 #define x_display_info w32_display_info
230 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
231 #define check_x check_w32
232 #define x_list_fonts w32_list_fonts
233 #define GCGraphicsExposures 0
234 #endif /* WINDOWSNT */
238 #define x_display_info mac_display_info
239 #define check_x check_mac
243 #include "dispextern.h"
244 #include "blockinput.h"
246 #include "intervals.h"
247 #include "termchar.h"
249 #ifdef HAVE_X_WINDOWS
251 /* Compensate for a bug in Xos.h on some systems, on which it requires
252 time.h. On some such systems, Xos.h tries to redefine struct
253 timeval and struct timezone if USG is #defined while it is
256 #ifdef XOS_NEEDS_TIME_H
262 #else /* not XOS_NEEDS_TIME_H */
264 #endif /* not XOS_NEEDS_TIME_H */
266 #endif /* HAVE_X_WINDOWS */
270 #define abs(X) ((X) < 0 ? -(X) : (X))
272 /* Number of pt per inch (from the TeXbook). */
274 #define PT_PER_INCH 72.27
276 /* Non-zero if face attribute ATTR is unspecified. */
278 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
280 /* 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
;
307 /* Symbols used for attribute values. */
309 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
310 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
311 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
312 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
313 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
314 Lisp_Object Qultra_expanded
;
315 Lisp_Object Qreleased_button
, Qpressed_button
;
316 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
317 Lisp_Object Qunspecified
;
319 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
321 /* The name of the function to call when the background of the frame
322 has changed, frame_update_face_colors. */
324 Lisp_Object Qframe_update_face_colors
;
326 /* Names of basic faces. */
328 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
329 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
330 Lisp_Object Qmode_line_inactive
;
331 extern Lisp_Object Qmode_line
;
333 /* The symbol `face-alias'. A symbols having that property is an
334 alias for another face. Value of the property is the name of
337 Lisp_Object Qface_alias
;
339 /* Default stipple pattern used on monochrome displays. This stipple
340 pattern is used on monochrome displays instead of shades of gray
341 for a face background color. See `set-face-stipple' for possible
342 values for this variable. */
344 Lisp_Object Vface_default_stipple
;
346 /* Alist of alternative font families. Each element is of the form
347 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
348 try FAMILY1, then FAMILY2, ... */
350 Lisp_Object Vface_alternative_font_family_alist
;
352 /* Alist of alternative font registries. Each element is of the form
353 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
354 loaded, try REGISTRY1, then REGISTRY2, ... */
356 Lisp_Object Vface_alternative_font_registry_alist
;
358 /* Allowed scalable fonts. A value of nil means don't allow any
359 scalable fonts. A value of t means allow the use of any scalable
360 font. Otherwise, value must be a list of regular expressions. A
361 font may be scaled if its name matches a regular expression in the
364 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
366 /* List of regular expressions that matches names of fonts to ignore. */
368 Lisp_Object Vface_ignored_fonts
;
370 /* Alist of font name patterns vs the rescaling factor. */
372 Lisp_Object Vface_font_rescale_alist
;
374 /* Maximum number of fonts to consider in font_list. If not an
375 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
377 Lisp_Object Vfont_list_limit
;
378 #define DEFAULT_FONT_LIST_LIMIT 100
380 /* The symbols `foreground-color' and `background-color' which can be
381 used as part of a `face' property. This is for compatibility with
384 Lisp_Object Qforeground_color
, Qbackground_color
;
386 /* The symbols `face' and `mouse-face' used as text properties. */
389 extern Lisp_Object Qmouse_face
;
391 /* Property for basic faces which other faces cannot inherit. */
393 Lisp_Object Qface_no_inherit
;
395 /* Error symbol for wrong_type_argument in load_pixmap. */
397 Lisp_Object Qbitmap_spec_p
;
399 /* Alist of global face definitions. Each element is of the form
400 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
401 is a Lisp vector of face attributes. These faces are used
402 to initialize faces for new frames. */
404 Lisp_Object Vface_new_frame_defaults
;
406 /* The next ID to assign to Lisp faces. */
408 static int next_lface_id
;
410 /* A vector mapping Lisp face Id's to face names. */
412 static Lisp_Object
*lface_id_to_name
;
413 static int lface_id_to_name_size
;
415 /* TTY color-related functions (defined in tty-colors.el). */
417 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
, Qtty_color_standard_values
;
419 /* The name of the function used to compute colors on TTYs. */
421 Lisp_Object Qtty_color_alist
;
423 /* An alist of defined terminal colors and their RGB values. */
425 Lisp_Object Vtty_defined_color_alist
;
427 /* Counter for calls to clear_face_cache. If this counter reaches
428 CLEAR_FONT_TABLE_COUNT, and a frame has more than
429 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
431 static int clear_font_table_count
;
432 #define CLEAR_FONT_TABLE_COUNT 100
433 #define CLEAR_FONT_TABLE_NFONTS 10
435 /* Non-zero means face attributes have been changed since the last
436 redisplay. Used in redisplay_internal. */
438 int face_change_count
;
440 /* Non-zero means don't display bold text if a face's foreground
441 and background colors are the inverse of the default colors of the
442 display. This is a kluge to suppress `bold black' foreground text
443 which is hard to read on an LCD monitor. */
445 int tty_suppress_bold_inverse_default_colors_p
;
447 /* A list of the form `((x . y))' used to avoid consing in
448 Finternal_set_lisp_face_attribute. */
450 static Lisp_Object Vparam_value_alist
;
452 /* The total number of colors currently allocated. */
455 static int ncolors_allocated
;
456 static int npixmaps_allocated
;
460 /* Non-zero means the definition of the `menu' face for new frames has
463 int menu_face_changed_default
;
466 /* Function prototypes. */
470 struct named_merge_point
;
472 static void map_tty_color
P_ ((struct frame
*, struct face
*,
473 enum lface_attribute_index
, int *));
474 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
475 static int may_use_scalable_font_p
P_ ((const char *));
476 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
477 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
479 static int x_face_list_fonts
P_ ((struct frame
*, char *,
480 struct font_name
**, int, int));
481 static int font_scalable_p
P_ ((struct font_name
*));
482 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
483 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
484 static unsigned char *xstrlwr
P_ ((unsigned char *));
485 static void signal_error
P_ ((char *, Lisp_Object
));
486 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
487 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
488 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
489 static void free_face_colors
P_ ((struct frame
*, struct face
*));
490 static int face_color_gray_p
P_ ((struct frame
*, char *));
491 static char *build_font_name
P_ ((struct font_name
*));
492 static void free_font_names
P_ ((struct font_name
*, int));
493 static int sorted_font_list
P_ ((struct frame
*, char *,
494 int (*cmpfn
) P_ ((const void *, const void *)),
495 struct font_name
**));
496 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
497 Lisp_Object
, struct font_name
**));
498 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
499 Lisp_Object
, struct font_name
**));
500 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
501 Lisp_Object
, Lisp_Object
, struct font_name
**,
503 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
504 Lisp_Object
, struct font_name
**));
505 static int cmp_font_names
P_ ((const void *, const void *));
506 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
507 struct face
*, int));
508 static struct face
*realize_x_face
P_ ((struct face_cache
*,
509 Lisp_Object
*, int, struct face
*));
510 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
511 Lisp_Object
*, int));
512 static int realize_basic_faces
P_ ((struct frame
*));
513 static int realize_default_face
P_ ((struct frame
*));
514 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
515 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
516 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
517 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
518 static unsigned lface_hash
P_ ((Lisp_Object
*));
519 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
520 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
521 static void free_realized_face
P_ ((struct frame
*, struct face
*));
522 static void clear_face_gcs
P_ ((struct face_cache
*));
523 static void free_face_cache
P_ ((struct face_cache
*));
524 static int face_numeric_weight
P_ ((Lisp_Object
));
525 static int face_numeric_slant
P_ ((Lisp_Object
));
526 static int face_numeric_swidth
P_ ((Lisp_Object
));
527 static int face_fontset
P_ ((Lisp_Object
*));
528 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int, int*));
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 void free_realized_faces
P_ ((struct face_cache
*));
538 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
539 struct font_name
*, int, int, int *));
540 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
541 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
542 static int xlfd_numeric_slant
P_ ((struct font_name
*));
543 static int xlfd_numeric_weight
P_ ((struct font_name
*));
544 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
545 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
546 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
547 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
548 static int xlfd_fixed_p
P_ ((struct font_name
*));
549 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
551 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
552 struct font_name
*, int,
554 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
555 struct font_name
*, int));
557 #ifdef HAVE_WINDOW_SYSTEM
559 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
560 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
561 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
562 int (*cmpfn
) P_ ((const void *, const void *))));
563 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
564 static void x_free_gc
P_ ((struct frame
*, GC
));
565 static void clear_font_table
P_ ((struct x_display_info
*));
568 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
569 #endif /* WINDOWSNT */
572 static void x_update_menu_appearance
P_ ((struct frame
*));
574 extern void free_frame_menubar
P_ ((struct frame
*));
575 #endif /* USE_X_TOOLKIT */
577 #endif /* HAVE_WINDOW_SYSTEM */
580 /***********************************************************************
582 ***********************************************************************/
584 #ifdef HAVE_X_WINDOWS
586 #ifdef DEBUG_X_COLORS
588 /* The following is a poor mans infrastructure for debugging X color
589 allocation problems on displays with PseudoColor-8. Some X servers
590 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
591 color reference counts completely so that they don't signal an
592 error when a color is freed whose reference count is already 0.
593 Other X servers do. To help me debug this, the following code
594 implements a simple reference counting schema of its own, for a
595 single display/screen. --gerd. */
597 /* Reference counts for pixel colors. */
599 int color_count
[256];
601 /* Register color PIXEL as allocated. */
604 register_color (pixel
)
607 xassert (pixel
< 256);
608 ++color_count
[pixel
];
612 /* Register color PIXEL as deallocated. */
615 unregister_color (pixel
)
618 xassert (pixel
< 256);
619 if (color_count
[pixel
] > 0)
620 --color_count
[pixel
];
626 /* Register N colors from PIXELS as deallocated. */
629 unregister_colors (pixels
, n
)
630 unsigned long *pixels
;
634 for (i
= 0; i
< n
; ++i
)
635 unregister_color (pixels
[i
]);
639 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
640 doc
: /* Dump currently allocated colors to stderr. */)
645 fputc ('\n', stderr
);
647 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
650 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
653 fputc ('\n', stderr
);
655 fputc ('\t', stderr
);
659 fputc ('\n', stderr
);
663 #endif /* DEBUG_X_COLORS */
666 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
667 color values. Interrupt input must be blocked when this function
671 x_free_colors (f
, pixels
, npixels
)
673 unsigned long *pixels
;
676 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
678 /* If display has an immutable color map, freeing colors is not
679 necessary and some servers don't allow it. So don't do it. */
680 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
682 #ifdef DEBUG_X_COLORS
683 unregister_colors (pixels
, npixels
);
685 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
691 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
692 color values. Interrupt input must be blocked when this function
696 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
700 unsigned long *pixels
;
703 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
704 int class = dpyinfo
->visual
->class;
706 /* If display has an immutable color map, freeing colors is not
707 necessary and some servers don't allow it. So don't do it. */
708 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
710 #ifdef DEBUG_X_COLORS
711 unregister_colors (pixels
, npixels
);
713 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
718 /* Create and return a GC for use on frame F. GC values and mask
719 are given by XGCV and MASK. */
722 x_create_gc (f
, mask
, xgcv
)
729 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
736 /* Free GC which was used on frame F. */
744 xassert (--ngcs
>= 0);
745 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
749 #endif /* HAVE_X_WINDOWS */
752 /* W32 emulation of GCs */
755 x_create_gc (f
, mask
, xgcv
)
762 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
769 /* Free GC which was used on frame F. */
777 xassert (--ngcs
>= 0);
782 #endif /* WINDOWSNT */
785 /* Mac OS emulation of GCs */
787 extern XGCValues
*XCreateGC (void *, Window
, unsigned long, XGCValues
*);
790 x_create_gc (f
, mask
, xgcv
)
796 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
805 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
810 /* Like stricmp. Used to compare parts of font names which are in
815 const unsigned char *s1
, *s2
;
819 unsigned char c1
= tolower (*s1
);
820 unsigned char c2
= tolower (*s2
);
822 return c1
< c2
? -1 : 1;
827 return *s2
== 0 ? 0 : -1;
832 /* Like strlwr, which might not always be available. */
834 static unsigned char *
838 unsigned char *p
= s
;
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
);
1080 /* Mark font table slot free. */
1081 font_info
->font
= NULL
;
1082 font_info
->name
= font_info
->full_name
= NULL
;
1086 #endif /* HAVE_WINDOW_SYSTEM */
1090 /***********************************************************************
1092 ***********************************************************************/
1094 #ifdef HAVE_WINDOW_SYSTEM
1096 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1097 doc
: /* Value is non-nil if OBJECT is a valid bitmap specification.
1098 A bitmap specification is either a string, a file name, or a list
1099 \(WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,
1100 HEIGHT is its height, and DATA is a string containing the bits of
1101 the pixmap. Bits are stored row by row, each row occupies
1102 \(WIDTH + 7)/8 bytes. */)
1108 if (STRINGP (object
))
1109 /* If OBJECT is a string, it's a file name. */
1111 else if (CONSP (object
))
1113 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1114 HEIGHT must be integers > 0, and DATA must be string large
1115 enough to hold a bitmap of the specified size. */
1116 Lisp_Object width
, height
, data
;
1118 height
= width
= data
= Qnil
;
1122 width
= XCAR (object
);
1123 object
= XCDR (object
);
1126 height
= XCAR (object
);
1127 object
= XCDR (object
);
1129 data
= XCAR (object
);
1133 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1135 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1137 if (SBYTES (data
) >= bytes_per_row
* XINT (height
))
1142 return pixmap_p
? Qt
: Qnil
;
1146 /* Load a bitmap according to NAME (which is either a file name or a
1147 pixmap spec) for use on frame F. Value is the bitmap_id (see
1148 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1149 bitmap cannot be loaded, display a message saying so, and return
1150 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1151 if these pointers are not null. */
1154 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1157 unsigned int *w_ptr
, *h_ptr
;
1165 tem
= Fbitmap_spec_p (name
);
1167 wrong_type_argument (Qbitmap_spec_p
, name
);
1172 /* Decode a bitmap spec into a bitmap. */
1177 w
= XINT (Fcar (name
));
1178 h
= XINT (Fcar (Fcdr (name
)));
1179 bits
= Fcar (Fcdr (Fcdr (name
)));
1181 bitmap_id
= x_create_bitmap_from_data (f
, SDATA (bits
),
1186 /* It must be a string -- a file name. */
1187 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1193 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1204 ++npixmaps_allocated
;
1207 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1210 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1216 #endif /* HAVE_WINDOW_SYSTEM */
1220 /***********************************************************************
1222 ***********************************************************************/
1224 #ifdef HAVE_WINDOW_SYSTEM
1226 /* Load font of face FACE which is used on frame F to display
1227 character C. The name of the font to load is determined by lface
1228 and fontset of FACE. */
1231 load_face_font (f
, face
, c
)
1236 struct font_info
*font_info
= NULL
;
1238 int needs_overstrike
;
1240 face
->font_info_id
= -1;
1243 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
,
1249 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1254 face
->font_info_id
= font_info
->font_idx
;
1255 face
->font
= font_info
->font
;
1256 face
->font_name
= font_info
->full_name
;
1257 face
->overstrike
= needs_overstrike
;
1260 x_free_gc (f
, face
->gc
);
1265 add_to_log ("Unable to load font %s",
1266 build_string (font_name
), Qnil
);
1270 #endif /* HAVE_WINDOW_SYSTEM */
1274 /***********************************************************************
1276 ***********************************************************************/
1278 /* Parse RGB_LIST, and fill in the RGB fields of COLOR.
1279 RGB_LIST should contain (at least) 3 lisp integers.
1280 Return 0 if there's a problem with RGB_LIST, otherwise return 1. */
1283 parse_rgb_list (rgb_list
, color
)
1284 Lisp_Object rgb_list
;
1287 #define PARSE_RGB_LIST_FIELD(field) \
1288 if (CONSP (rgb_list) && INTEGERP (XCAR (rgb_list))) \
1290 color->field = XINT (XCAR (rgb_list)); \
1291 rgb_list = XCDR (rgb_list); \
1296 PARSE_RGB_LIST_FIELD (red
);
1297 PARSE_RGB_LIST_FIELD (green
);
1298 PARSE_RGB_LIST_FIELD (blue
);
1304 /* Lookup on frame F the color described by the lisp string COLOR.
1305 The resulting tty color is returned in TTY_COLOR; if STD_COLOR is
1306 non-zero, then the `standard' definition of the same color is
1310 tty_lookup_color (f
, color
, tty_color
, std_color
)
1313 XColor
*tty_color
, *std_color
;
1315 Lisp_Object frame
, color_desc
;
1317 if (!STRINGP (color
) || NILP (Ffboundp (Qtty_color_desc
)))
1320 XSETFRAME (frame
, f
);
1322 color_desc
= call2 (Qtty_color_desc
, color
, frame
);
1323 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1327 if (! INTEGERP (XCAR (XCDR (color_desc
))))
1330 tty_color
->pixel
= XINT (XCAR (XCDR (color_desc
)));
1332 rgb
= XCDR (XCDR (color_desc
));
1333 if (! parse_rgb_list (rgb
, tty_color
))
1336 /* Should we fill in STD_COLOR too? */
1339 /* Default STD_COLOR to the same as TTY_COLOR. */
1340 *std_color
= *tty_color
;
1342 /* Do a quick check to see if the returned descriptor is
1343 actually _exactly_ equal to COLOR, otherwise we have to
1344 lookup STD_COLOR separately. If it's impossible to lookup
1345 a standard color, we just give up and use TTY_COLOR. */
1346 if ((!STRINGP (XCAR (color_desc
))
1347 || NILP (Fstring_equal (color
, XCAR (color_desc
))))
1348 && !NILP (Ffboundp (Qtty_color_standard_values
)))
1350 /* Look up STD_COLOR separately. */
1351 rgb
= call1 (Qtty_color_standard_values
, color
);
1352 if (! parse_rgb_list (rgb
, std_color
))
1359 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1360 /* We were called early during startup, and the colors are not
1361 yet set up in tty-defined-color-alist. Don't return a failure
1362 indication, since this produces the annoying "Unable to
1363 load color" messages in the *Messages* buffer. */
1366 /* tty-color-desc seems to have returned a bad value. */
1370 /* A version of defined_color for non-X frames. */
1373 tty_defined_color (f
, color_name
, color_def
, alloc
)
1382 color_def
->pixel
= FACE_TTY_DEFAULT_COLOR
;
1384 color_def
->blue
= 0;
1385 color_def
->green
= 0;
1388 status
= tty_lookup_color (f
, build_string (color_name
), color_def
, 0);
1390 if (color_def
->pixel
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1392 if (strcmp (color_name
, "unspecified-fg") == 0)
1393 color_def
->pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
1394 else if (strcmp (color_name
, "unspecified-bg") == 0)
1395 color_def
->pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
1398 if (color_def
->pixel
!= FACE_TTY_DEFAULT_COLOR
)
1405 /* Decide if color named COLOR_NAME is valid for the display
1406 associated with the frame F; if so, return the rgb values in
1407 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1409 This does the right thing for any type of frame. */
1412 defined_color (f
, color_name
, color_def
, alloc
)
1418 if (!FRAME_WINDOW_P (f
))
1419 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1420 #ifdef HAVE_X_WINDOWS
1421 else if (FRAME_X_P (f
))
1422 return x_defined_color (f
, color_name
, color_def
, alloc
);
1425 else if (FRAME_W32_P (f
))
1426 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1429 else if (FRAME_MAC_P (f
))
1430 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1437 /* Given the index IDX of a tty color on frame F, return its name, a
1441 tty_color_name (f
, idx
)
1445 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1448 Lisp_Object coldesc
;
1450 XSETFRAME (frame
, f
);
1451 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1453 if (!NILP (coldesc
))
1454 return XCAR (coldesc
);
1457 /* We can have an MSDOG frame under -nw for a short window of
1458 opportunity before internal_terminal_init is called. DTRT. */
1459 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1460 return msdos_stdcolor_name (idx
);
1463 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1464 return build_string (unspecified_fg
);
1465 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1466 return build_string (unspecified_bg
);
1469 return vga_stdcolor_name (idx
);
1472 return Qunspecified
;
1476 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1477 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1480 face_color_gray_p (f
, color_name
)
1487 if (defined_color (f
, color_name
, &color
, 0))
1488 gray_p
= ((abs (color
.red
- color
.green
)
1489 < max (color
.red
, color
.green
) / 20)
1490 && (abs (color
.green
- color
.blue
)
1491 < max (color
.green
, color
.blue
) / 20)
1492 && (abs (color
.blue
- color
.red
)
1493 < max (color
.blue
, color
.red
) / 20));
1501 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1502 BACKGROUND_P non-zero means the color will be used as background
1506 face_color_supported_p (f
, color_name
, background_p
)
1514 XSETFRAME (frame
, f
);
1516 #ifdef HAVE_X_WINDOWS
1518 ? (!NILP (Fxw_display_color_p (frame
))
1519 || xstricmp (color_name
, "black") == 0
1520 || xstricmp (color_name
, "white") == 0
1522 && face_color_gray_p (f
, color_name
))
1523 || (!NILP (Fx_display_grayscale_p (frame
))
1524 && face_color_gray_p (f
, color_name
)))
1527 tty_defined_color (f
, color_name
, ¬_used
, 0);
1531 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1532 doc
: /* Return non-nil if COLOR is a shade of gray (or white or black).
1533 FRAME specifies the frame and thus the display for interpreting COLOR.
1534 If FRAME is nil or omitted, use the selected frame. */)
1536 Lisp_Object color
, frame
;
1540 CHECK_STRING (color
);
1542 frame
= selected_frame
;
1544 CHECK_FRAME (frame
);
1546 return face_color_gray_p (f
, SDATA (color
)) ? Qt
: Qnil
;
1550 DEFUN ("color-supported-p", Fcolor_supported_p
,
1551 Scolor_supported_p
, 1, 3, 0,
1552 doc
: /* Return non-nil if COLOR can be displayed on FRAME.
1553 BACKGROUND-P non-nil means COLOR is used as a background.
1554 Otherwise, this function tells whether it can be used as a foreground.
1555 If FRAME is nil or omitted, use the selected frame.
1556 COLOR must be a valid color name. */)
1557 (color
, frame
, background_p
)
1558 Lisp_Object frame
, color
, background_p
;
1562 CHECK_STRING (color
);
1564 frame
= selected_frame
;
1566 CHECK_FRAME (frame
);
1568 if (face_color_supported_p (f
, SDATA (color
), !NILP (background_p
)))
1574 /* Load color with name NAME for use by face FACE on frame F.
1575 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1576 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1577 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1578 pixel color. If color cannot be loaded, display a message, and
1579 return the foreground, background or underline color of F, but
1580 record that fact in flags of the face so that we don't try to free
1584 load_color (f
, face
, name
, target_index
)
1588 enum lface_attribute_index target_index
;
1592 xassert (STRINGP (name
));
1593 xassert (target_index
== LFACE_FOREGROUND_INDEX
1594 || target_index
== LFACE_BACKGROUND_INDEX
1595 || target_index
== LFACE_UNDERLINE_INDEX
1596 || target_index
== LFACE_OVERLINE_INDEX
1597 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1598 || target_index
== LFACE_BOX_INDEX
);
1600 /* if the color map is full, defined_color will return a best match
1601 to the values in an existing cell. */
1602 if (!defined_color (f
, SDATA (name
), &color
, 1))
1604 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1606 switch (target_index
)
1608 case LFACE_FOREGROUND_INDEX
:
1609 face
->foreground_defaulted_p
= 1;
1610 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1613 case LFACE_BACKGROUND_INDEX
:
1614 face
->background_defaulted_p
= 1;
1615 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1618 case LFACE_UNDERLINE_INDEX
:
1619 face
->underline_defaulted_p
= 1;
1620 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1623 case LFACE_OVERLINE_INDEX
:
1624 face
->overline_color_defaulted_p
= 1;
1625 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1628 case LFACE_STRIKE_THROUGH_INDEX
:
1629 face
->strike_through_color_defaulted_p
= 1;
1630 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1633 case LFACE_BOX_INDEX
:
1634 face
->box_color_defaulted_p
= 1;
1635 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1644 ++ncolors_allocated
;
1651 #ifdef HAVE_WINDOW_SYSTEM
1653 /* Load colors for face FACE which is used on frame F. Colors are
1654 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1655 of ATTRS. If the background color specified is not supported on F,
1656 try to emulate gray colors with a stipple from Vface_default_stipple. */
1659 load_face_colors (f
, face
, attrs
)
1666 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1667 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1669 /* Swap colors if face is inverse-video. */
1670 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1678 /* Check for support for foreground, not for background because
1679 face_color_supported_p is smart enough to know that grays are
1680 "supported" as background because we are supposed to use stipple
1682 if (!face_color_supported_p (f
, SDATA (bg
), 0)
1683 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1685 x_destroy_bitmap (f
, face
->stipple
);
1686 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1687 &face
->pixmap_w
, &face
->pixmap_h
);
1690 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1691 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1695 /* Free color PIXEL on frame F. */
1698 unload_color (f
, pixel
)
1700 unsigned long pixel
;
1702 #ifdef HAVE_X_WINDOWS
1706 x_free_colors (f
, &pixel
, 1);
1713 /* Free colors allocated for FACE. */
1716 free_face_colors (f
, face
)
1720 #ifdef HAVE_X_WINDOWS
1721 if (face
->colors_copied_bitwise_p
)
1726 if (!face
->foreground_defaulted_p
)
1728 x_free_colors (f
, &face
->foreground
, 1);
1729 IF_DEBUG (--ncolors_allocated
);
1732 if (!face
->background_defaulted_p
)
1734 x_free_colors (f
, &face
->background
, 1);
1735 IF_DEBUG (--ncolors_allocated
);
1738 if (face
->underline_p
1739 && !face
->underline_defaulted_p
)
1741 x_free_colors (f
, &face
->underline_color
, 1);
1742 IF_DEBUG (--ncolors_allocated
);
1745 if (face
->overline_p
1746 && !face
->overline_color_defaulted_p
)
1748 x_free_colors (f
, &face
->overline_color
, 1);
1749 IF_DEBUG (--ncolors_allocated
);
1752 if (face
->strike_through_p
1753 && !face
->strike_through_color_defaulted_p
)
1755 x_free_colors (f
, &face
->strike_through_color
, 1);
1756 IF_DEBUG (--ncolors_allocated
);
1759 if (face
->box
!= FACE_NO_BOX
1760 && !face
->box_color_defaulted_p
)
1762 x_free_colors (f
, &face
->box_color
, 1);
1763 IF_DEBUG (--ncolors_allocated
);
1767 #endif /* HAVE_X_WINDOWS */
1770 #endif /* HAVE_WINDOW_SYSTEM */
1774 /***********************************************************************
1776 ***********************************************************************/
1778 /* An enumerator for each field of an XLFD font name. */
1799 /* An enumerator for each possible slant value of a font. Taken from
1800 the XLFD specification. */
1808 XLFD_SLANT_REVERSE_ITALIC
,
1809 XLFD_SLANT_REVERSE_OBLIQUE
,
1813 /* Relative font weight according to XLFD documentation. */
1817 XLFD_WEIGHT_UNKNOWN
,
1818 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1819 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1820 XLFD_WEIGHT_LIGHT
, /* 30 */
1821 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1822 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1823 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1824 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1825 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1826 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1829 /* Relative proportionate width. */
1833 XLFD_SWIDTH_UNKNOWN
,
1834 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1835 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1836 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1837 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1838 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1839 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1840 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1841 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1842 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1845 /* Structure used for tables mapping XLFD weight, slant, and width
1846 names to numeric and symbolic values. */
1852 Lisp_Object
*symbol
;
1855 /* Table of XLFD slant names and their numeric and symbolic
1856 representations. This table must be sorted by slant names in
1859 static struct table_entry slant_table
[] =
1861 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1862 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1863 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1864 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1865 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1866 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1869 /* Table of XLFD weight names. This table must be sorted by weight
1870 names in ascending order. */
1872 static struct table_entry weight_table
[] =
1874 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1875 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1876 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1877 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1878 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1879 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1880 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1881 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1882 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1883 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1884 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1885 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1886 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1887 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1888 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1889 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1892 /* Table of XLFD width names. This table must be sorted by width
1893 names in ascending order. */
1895 static struct table_entry swidth_table
[] =
1897 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1898 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1899 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1900 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1901 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1902 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1903 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1904 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1905 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1906 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1907 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1908 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1909 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1910 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1911 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1914 /* Structure used to hold the result of splitting font names in XLFD
1915 format into their fields. */
1919 /* The original name which is modified destructively by
1920 split_font_name. The pointer is kept here to be able to free it
1921 if it was allocated from the heap. */
1924 /* Font name fields. Each vector element points into `name' above.
1925 Fields are NUL-terminated. */
1926 char *fields
[XLFD_LAST
];
1928 /* Numeric values for those fields that interest us. See
1929 split_font_name for which these are. */
1930 int numeric
[XLFD_LAST
];
1932 /* If the original name matches one of Vface_font_rescale_alist,
1933 the value is the corresponding rescale ratio. Otherwise, the
1935 double rescale_ratio
;
1937 /* Lower value mean higher priority. */
1938 int registry_priority
;
1941 /* The frame in effect when sorting font names. Set temporarily in
1942 sort_fonts so that it is available in font comparison functions. */
1944 static struct frame
*font_frame
;
1946 /* Order by which font selection chooses fonts. The default values
1947 mean `first, find a best match for the font width, then for the
1948 font height, then for weight, then for slant.' This variable can be
1949 set via set-face-font-sort-order. */
1952 static int font_sort_order
[4] = {
1953 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1956 static int font_sort_order
[4];
1959 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1960 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1961 is a pointer to the matching table entry or null if no table entry
1964 static struct table_entry
*
1965 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1966 struct table_entry
*table
;
1968 struct font_name
*font
;
1971 /* Function split_font_name converts fields to lower-case, so there
1972 is no need to use xstrlwr or xstricmp here. */
1973 char *s
= font
->fields
[field_index
];
1974 int low
, mid
, high
, cmp
;
1981 mid
= (low
+ high
) / 2;
1982 cmp
= strcmp (table
[mid
].name
, s
);
1996 /* Return a numeric representation for font name field
1997 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1998 has DIM entries. Value is the numeric value found or DFLT if no
1999 table entry matches. This function is used to translate weight,
2000 slant, and swidth names of XLFD font names to numeric values. */
2003 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
2004 struct table_entry
*table
;
2006 struct font_name
*font
;
2010 struct table_entry
*p
;
2011 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2012 return p
? p
->numeric
: dflt
;
2016 /* Return a symbolic representation for font name field
2017 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
2018 has DIM entries. Value is the symbolic value found or DFLT if no
2019 table entry matches. This function is used to translate weight,
2020 slant, and swidth names of XLFD font names to symbols. */
2022 static INLINE Lisp_Object
2023 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
2024 struct table_entry
*table
;
2026 struct font_name
*font
;
2030 struct table_entry
*p
;
2031 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
2032 return p
? *p
->symbol
: dflt
;
2036 /* Return a numeric value for the slant of the font given by FONT. */
2039 xlfd_numeric_slant (font
)
2040 struct font_name
*font
;
2042 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
2043 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
2047 /* Return a symbol representing the weight of the font given by FONT. */
2049 static INLINE Lisp_Object
2050 xlfd_symbolic_slant (font
)
2051 struct font_name
*font
;
2053 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
2054 font
, XLFD_SLANT
, Qnormal
);
2058 /* Return a numeric value for the weight of the font given by FONT. */
2061 xlfd_numeric_weight (font
)
2062 struct font_name
*font
;
2064 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
2065 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
2069 /* Return a symbol representing the slant of the font given by FONT. */
2071 static INLINE Lisp_Object
2072 xlfd_symbolic_weight (font
)
2073 struct font_name
*font
;
2075 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
2076 font
, XLFD_WEIGHT
, Qnormal
);
2080 /* Return a numeric value for the swidth of the font whose XLFD font
2081 name fields are found in FONT. */
2084 xlfd_numeric_swidth (font
)
2085 struct font_name
*font
;
2087 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2088 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2092 /* Return a symbolic value for the swidth of FONT. */
2094 static INLINE Lisp_Object
2095 xlfd_symbolic_swidth (font
)
2096 struct font_name
*font
;
2098 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2099 font
, XLFD_SWIDTH
, Qnormal
);
2103 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2104 entries. Value is a pointer to the matching table entry or null if
2105 no element of TABLE contains SYMBOL. */
2107 static struct table_entry
*
2108 face_value (table
, dim
, symbol
)
2109 struct table_entry
*table
;
2115 xassert (SYMBOLP (symbol
));
2117 for (i
= 0; i
< dim
; ++i
)
2118 if (EQ (*table
[i
].symbol
, symbol
))
2121 return i
< dim
? table
+ i
: NULL
;
2125 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2126 entries. Value is -1 if SYMBOL is not found in TABLE. */
2129 face_numeric_value (table
, dim
, symbol
)
2130 struct table_entry
*table
;
2134 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2135 return p
? p
->numeric
: -1;
2139 /* Return a numeric value representing the weight specified by Lisp
2140 symbol WEIGHT. Value is one of the enumerators of enum
2144 face_numeric_weight (weight
)
2147 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2151 /* Return a numeric value representing the slant specified by Lisp
2152 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2155 face_numeric_slant (slant
)
2158 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2162 /* Return a numeric value representing the swidth specified by Lisp
2163 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2166 face_numeric_swidth (width
)
2169 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2173 #ifdef HAVE_WINDOW_SYSTEM
2175 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2179 struct font_name
*font
;
2181 /* Function split_font_name converts fields to lower-case, so there
2182 is no need to use tolower here. */
2183 return *font
->fields
[XLFD_SPACING
] != 'p';
2187 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2189 The actual height of the font when displayed on F depends on the
2190 resolution of both the font and frame. For example, a 10pt font
2191 designed for a 100dpi display will display larger than 10pt on a
2192 75dpi display. (It's not unusual to use fonts not designed for the
2193 display one is using. For example, some intlfonts are available in
2194 72dpi versions, only.)
2196 Value is the real point size of FONT on frame F, or 0 if it cannot
2200 xlfd_point_size (f
, font
)
2202 struct font_name
*font
;
2204 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2205 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2209 if (*pixel_field
== '[')
2211 /* The pixel size field is `[A B C D]' which specifies
2212 a transformation matrix.
2218 by which all glyphs of the font are transformed. The spec
2219 says that s scalar value N for the pixel size is equivalent
2220 to A = N * resx/resy, B = C = 0, D = N. */
2221 char *start
= pixel_field
+ 1, *end
;
2225 for (i
= 0; i
< 4; ++i
)
2227 matrix
[i
] = strtod (start
, &end
);
2234 pixel
= atoi (pixel_field
);
2239 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2245 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2246 of frame F. This function is used to guess a point size of font
2247 when only the pixel height of the font is available. */
2250 pixel_point_size (f
, pixel
)
2254 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2258 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2259 point size of one dot. */
2260 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2261 int_pt
= real_pt
+ 0.5;
2267 /* Return a rescaling ratio of a font of NAME. */
2270 font_rescale_ratio (name
)
2273 Lisp_Object tail
, elt
;
2275 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2278 if (STRINGP (XCAR (elt
)) && FLOATP (XCDR (elt
))
2279 && fast_c_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2280 return XFLOAT_DATA (XCDR (elt
));
2286 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2287 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2288 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2289 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2290 zero if the font name doesn't have the format we expect. The
2291 expected format is a font name that starts with a `-' and has
2292 XLFD_LAST fields separated by `-'. */
2295 split_font_name (f
, font
, numeric_p
)
2297 struct font_name
*font
;
2302 double rescale_ratio
;
2305 /* This must be done before splitting the font name. */
2306 rescale_ratio
= font_rescale_ratio (font
->name
);
2308 if (*font
->name
== '-')
2310 char *p
= xstrlwr (font
->name
) + 1;
2312 while (i
< XLFD_LAST
)
2314 font
->fields
[i
] = p
;
2317 /* Pixel and point size may be of the form `[....]'. For
2318 BNF, see XLFD spec, chapter 4. Negative values are
2319 indicated by tilde characters which we replace with
2320 `-' characters, here. */
2322 && (i
- 1 == XLFD_PIXEL_SIZE
2323 || i
- 1 == XLFD_POINT_SIZE
))
2328 for (++p
; *p
&& *p
!= ']'; ++p
)
2332 /* Check that the matrix contains 4 floating point
2334 for (j
= 0, start
= font
->fields
[i
- 1] + 1;
2337 if (strtod (start
, &end
) == 0 && start
== end
)
2344 while (*p
&& *p
!= '-')
2354 success_p
= i
== XLFD_LAST
;
2356 /* If requested, and font name was in the expected format,
2357 compute numeric values for some fields. */
2358 if (numeric_p
&& success_p
)
2360 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2361 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2362 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2363 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2364 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2365 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2366 font
->rescale_ratio
= rescale_ratio
;
2369 /* Initialize it to zero. It will be overridden by font_list while
2370 trying alternate registries. */
2371 font
->registry_priority
= 0;
2377 /* Build an XLFD font name from font name fields in FONT. Value is a
2378 pointer to the font name, which is allocated via xmalloc. */
2381 build_font_name (font
)
2382 struct font_name
*font
;
2386 char *font_name
= (char *) xmalloc (size
);
2387 int total_length
= 0;
2389 for (i
= 0; i
< XLFD_LAST
; ++i
)
2391 /* Add 1 because of the leading `-'. */
2392 int len
= strlen (font
->fields
[i
]) + 1;
2394 /* Reallocate font_name if necessary. Add 1 for the final
2396 if (total_length
+ len
+ 1 >= size
)
2398 int new_size
= max (2 * size
, size
+ len
+ 1);
2399 int sz
= new_size
* sizeof *font_name
;
2400 font_name
= (char *) xrealloc (font_name
, sz
);
2404 font_name
[total_length
] = '-';
2405 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2406 total_length
+= len
;
2409 font_name
[total_length
] = 0;
2414 /* Free an array FONTS of N font_name structures. This frees FONTS
2415 itself and all `name' fields in its elements. */
2418 free_font_names (fonts
, n
)
2419 struct font_name
*fonts
;
2423 xfree (fonts
[--n
].name
);
2428 /* Sort vector FONTS of font_name structures which contains NFONTS
2429 elements using qsort and comparison function CMPFN. F is the frame
2430 on which the fonts will be used. The global variable font_frame
2431 is temporarily set to F to make it available in CMPFN. */
2434 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2436 struct font_name
*fonts
;
2438 int (*cmpfn
) P_ ((const void *, const void *));
2441 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2446 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2447 display in x_display_list. FONTS is a pointer to a vector of
2448 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2449 alternative patterns from Valternate_fontname_alist if no fonts are
2450 found matching PATTERN.
2452 For all fonts found, set FONTS[i].name to the name of the font,
2453 allocated via xmalloc, and split font names into fields. Ignore
2454 fonts that we can't parse. Value is the number of fonts found. */
2457 x_face_list_fonts (f
, pattern
, pfonts
, nfonts
, try_alternatives_p
)
2460 struct font_name
**pfonts
;
2461 int nfonts
, try_alternatives_p
;
2465 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2466 better to do it the other way around. */
2468 Lisp_Object lpattern
, tem
;
2469 struct font_name
*fonts
= 0;
2470 int num_fonts
= nfonts
;
2473 lpattern
= build_string (pattern
);
2475 /* Get the list of fonts matching PATTERN. */
2478 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2481 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2484 if (nfonts
< 0 && CONSP (lfonts
))
2485 num_fonts
= XFASTINT (Flength (lfonts
));
2487 /* Make a copy of the font names we got from X, and
2488 split them into fields. */
2490 for (tem
= lfonts
; CONSP (tem
) && n
< num_fonts
; tem
= XCDR (tem
))
2492 Lisp_Object elt
, tail
;
2493 const char *name
= SDATA (XCAR (tem
));
2495 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2496 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2500 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2511 *pfonts
= (struct font_name
*) xmalloc (num_fonts
* sizeof **pfonts
);
2515 /* Make a copy of the font name. */
2516 fonts
[n
].name
= xstrdup (name
);
2518 if (split_font_name (f
, fonts
+ n
, 1))
2520 if (font_scalable_p (fonts
+ n
)
2521 && !may_use_scalable_font_p (name
))
2524 xfree (fonts
[n
].name
);
2530 xfree (fonts
[n
].name
);
2533 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2534 if (n
== 0 && try_alternatives_p
)
2536 Lisp_Object list
= Valternate_fontname_alist
;
2544 while (CONSP (list
))
2546 Lisp_Object entry
= XCAR (list
);
2548 && STRINGP (XCAR (entry
))
2549 && strcmp (SDATA (XCAR (entry
)), pattern
) == 0)
2556 Lisp_Object patterns
= XCAR (list
);
2559 while (CONSP (patterns
)
2560 /* If list is screwed up, give up. */
2561 && (name
= XCAR (patterns
),
2563 /* Ignore patterns equal to PATTERN because we tried that
2564 already with no success. */
2565 && (strcmp (SDATA (name
), pattern
) == 0
2566 || (n
= x_face_list_fonts (f
, SDATA (name
),
2569 patterns
= XCDR (patterns
);
2577 /* Check if a font matching pattern_offset_t on frame F is available
2578 or not. PATTERN may be a cons (FAMILY . REGISTRY), in which case,
2579 a font name pattern is generated from FAMILY and REGISTRY. */
2582 face_font_available_p (f
, pattern
)
2584 Lisp_Object pattern
;
2588 if (! STRINGP (pattern
))
2590 Lisp_Object family
, registry
;
2591 char *family_str
, *registry_str
, *pattern_str
;
2593 CHECK_CONS (pattern
);
2594 family
= XCAR (pattern
);
2599 CHECK_STRING (family
);
2600 family_str
= (char *) SDATA (family
);
2602 registry
= XCDR (pattern
);
2603 if (NILP (registry
))
2607 CHECK_STRING (registry
);
2608 registry_str
= (char *) SDATA (registry
);
2611 pattern_str
= (char *) alloca (strlen (family_str
)
2612 + strlen (registry_str
)
2614 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2615 strcat (pattern_str
, family_str
);
2616 strcat (pattern_str
, "-*-");
2617 strcat (pattern_str
, registry_str
);
2618 if (!index (registry_str
, '-'))
2620 if (registry_str
[strlen (registry_str
) - 1] == '*')
2621 strcat (pattern_str
, "-*");
2623 strcat (pattern_str
, "*-*");
2625 pattern
= build_string (pattern_str
);
2628 /* Get the list of fonts matching PATTERN. */
2631 fonts
= w32_list_fonts (f
, pattern
, 0, 1);
2634 fonts
= x_list_fonts (f
, pattern
, -1, 1);
2636 return XINT (Flength (fonts
));
2640 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2641 using comparison function CMPFN. Value is the number of fonts
2642 found. If value is non-zero, *FONTS is set to a vector of
2643 font_name structures allocated from the heap containing matching
2644 fonts. Each element of *FONTS contains a name member that is also
2645 allocated from the heap. Font names in these structures are split
2646 into fields. Use free_font_names to free such an array. */
2649 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2652 int (*cmpfn
) P_ ((const void *, const void *));
2653 struct font_name
**fonts
;
2657 /* Get the list of fonts matching pattern. 100 should suffice. */
2658 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2659 if (INTEGERP (Vfont_list_limit
))
2660 nfonts
= XINT (Vfont_list_limit
);
2663 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1);
2665 /* Sort the resulting array and return it in *FONTS. If no
2666 fonts were found, make sure to set *FONTS to null. */
2668 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2679 /* Compare two font_name structures *A and *B. Value is analogous to
2680 strcmp. Sort order is given by the global variable
2681 font_sort_order. Font names are sorted so that, everything else
2682 being equal, fonts with a resolution closer to that of the frame on
2683 which they are used are listed first. The global variable
2684 font_frame is the frame on which we operate. */
2687 cmp_font_names (a
, b
)
2690 struct font_name
*x
= (struct font_name
*) a
;
2691 struct font_name
*y
= (struct font_name
*) b
;
2694 /* All strings have been converted to lower-case by split_font_name,
2695 so we can use strcmp here. */
2696 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2701 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2703 int j
= font_sort_order
[i
];
2704 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2709 /* Everything else being equal, we prefer fonts with an
2710 y-resolution closer to that of the frame. */
2711 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2712 int x_resy
= x
->numeric
[XLFD_RESY
];
2713 int y_resy
= y
->numeric
[XLFD_RESY
];
2714 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2722 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2723 is non-nil list fonts matching that pattern. Otherwise, if
2724 REGISTRY is non-nil return only fonts with that registry, otherwise
2725 return fonts of any registry. Set *FONTS to a vector of font_name
2726 structures allocated from the heap containing the fonts found.
2727 Value is the number of fonts found. */
2730 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2732 Lisp_Object pattern
, family
, registry
;
2733 struct font_name
**fonts
;
2735 char *pattern_str
, *family_str
, *registry_str
;
2739 family_str
= (NILP (family
) ? "*" : (char *) SDATA (family
));
2740 registry_str
= (NILP (registry
) ? "*" : (char *) SDATA (registry
));
2742 pattern_str
= (char *) alloca (strlen (family_str
)
2743 + strlen (registry_str
)
2745 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2746 strcat (pattern_str
, family_str
);
2747 strcat (pattern_str
, "-*-");
2748 strcat (pattern_str
, registry_str
);
2749 if (!index (registry_str
, '-'))
2751 if (registry_str
[strlen (registry_str
) - 1] == '*')
2752 strcat (pattern_str
, "-*");
2754 strcat (pattern_str
, "*-*");
2758 pattern_str
= (char *) SDATA (pattern
);
2760 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2764 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2765 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2766 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2769 static struct font_name
*
2770 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2771 struct font_name
*fonts1
, *fonts2
;
2772 int nfonts1
, nfonts2
;
2774 int new_nfonts
= nfonts1
+ nfonts2
;
2775 struct font_name
*new_fonts
;
2777 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2778 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2779 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2786 /* Get a sorted list of fonts of family FAMILY on frame F.
2788 If PATTERN is non-nil list fonts matching that pattern.
2790 If REGISTRY is non-nil, return fonts with that registry and the
2791 alternative registries from Vface_alternative_font_registry_alist.
2793 If REGISTRY is nil return fonts of any registry.
2795 Set *FONTS to a vector of font_name structures allocated from the
2796 heap containing the fonts found. Value is the number of fonts
2800 font_list (f
, pattern
, family
, registry
, fonts
)
2802 Lisp_Object pattern
, family
, registry
;
2803 struct font_name
**fonts
;
2805 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2807 if (!NILP (registry
)
2808 && CONSP (Vface_alternative_font_registry_alist
))
2812 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2817 for (alter
= XCDR (alter
), reg_prio
= 1;
2819 alter
= XCDR (alter
), reg_prio
++)
2820 if (STRINGP (XCAR (alter
)))
2823 struct font_name
*fonts2
;
2825 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2827 for (i
= 0; i
< nfonts2
; i
++)
2828 fonts2
[i
].registry_priority
= reg_prio
;
2829 *fonts
= (nfonts
> 0
2830 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2841 /* Remove elements from LIST whose cars are `equal'. Called from
2842 x-family-fonts and x-font-family-list to remove duplicate font
2846 remove_duplicates (list
)
2849 Lisp_Object tail
= list
;
2851 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2853 Lisp_Object next
= XCDR (tail
);
2854 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2855 XSETCDR (tail
, XCDR (next
));
2862 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2863 doc
: /* Return a list of available fonts of family FAMILY on FRAME.
2864 If FAMILY is omitted or nil, list all families.
2865 Otherwise, FAMILY must be a string, possibly containing wildcards
2867 If FRAME is omitted or nil, use the selected frame.
2868 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT
2869 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].
2870 FAMILY is the font family name. POINT-SIZE is the size of the
2871 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the
2872 width, weight and slant of the font. These symbols are the same as for
2873 face attributes. FIXED-P is non-nil if the font is fixed-pitch.
2874 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string
2875 giving the registry and encoding of the font.
2876 The result list is sorted according to the current setting of
2877 the face font sort order. */)
2879 Lisp_Object family
, frame
;
2881 struct frame
*f
= check_x_frame (frame
);
2882 struct font_name
*fonts
;
2885 struct gcpro gcpro1
;
2888 CHECK_STRING (family
);
2892 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2893 for (i
= nfonts
- 1; i
>= 0; --i
)
2895 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2898 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2899 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2900 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2901 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2902 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2903 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2904 tem
= build_font_name (fonts
+ i
);
2905 ASET (v
, 6, build_string (tem
));
2906 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2907 fonts
[i
].fields
[XLFD_ENCODING
]);
2908 ASET (v
, 7, build_string (tem
));
2911 result
= Fcons (v
, result
);
2914 remove_duplicates (result
);
2915 free_font_names (fonts
, nfonts
);
2921 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2923 doc
: /* Return a list of available font families on FRAME.
2924 If FRAME is omitted or nil, use the selected frame.
2925 Value is a list of conses (FAMILY . FIXED-P) where FAMILY
2926 is a font family, and FIXED-P is non-nil if fonts of that family
2927 are fixed-pitch. */)
2931 struct frame
*f
= check_x_frame (frame
);
2933 struct font_name
*fonts
;
2935 struct gcpro gcpro1
;
2936 int count
= SPECPDL_INDEX ();
2938 /* Let's consider all fonts. */
2939 specbind (intern ("font-list-limit"), make_number (-1));
2940 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2944 for (i
= nfonts
- 1; i
>= 0; --i
)
2945 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2946 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2949 remove_duplicates (result
);
2950 free_font_names (fonts
, nfonts
);
2952 return unbind_to (count
, result
);
2956 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2957 doc
: /* Return a list of the names of available fonts matching PATTERN.
2958 If optional arguments FACE and FRAME are specified, return only fonts
2959 the same size as FACE on FRAME.
2960 PATTERN is a string, perhaps with wildcard characters;
2961 the * character matches any substring, and
2962 the ? character matches any single character.
2963 PATTERN is case-insensitive.
2964 FACE is a face name--a symbol.
2966 The return value is a list of strings, suitable as arguments to
2969 Fonts Emacs can't use may or may not be excluded
2970 even if they match PATTERN and FACE.
2971 The optional fourth argument MAXIMUM sets a limit on how many
2972 fonts to match. The first MAXIMUM fonts are reported.
2973 The optional fifth argument WIDTH, if specified, is a number of columns
2974 occupied by a character of a font. In that case, return only fonts
2975 the WIDTH times as wide as FACE on FRAME. */)
2976 (pattern
, face
, frame
, maximum
, width
)
2977 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2984 CHECK_STRING (pattern
);
2990 CHECK_NATNUM (maximum
);
2991 maxnames
= XINT (maximum
);
2995 CHECK_NUMBER (width
);
2997 /* We can't simply call check_x_frame because this function may be
2998 called before any frame is created. */
2999 f
= frame_or_selected_frame (frame
, 2);
3000 if (!FRAME_WINDOW_P (f
))
3002 /* Perhaps we have not yet created any frame. */
3007 /* Determine the width standard for comparison with the fonts we find. */
3013 /* This is of limited utility since it works with character
3014 widths. Keep it for compatibility. --gerd. */
3015 int face_id
= lookup_named_face (f
, face
, 0);
3016 struct face
*face
= (face_id
< 0
3018 : FACE_FROM_ID (f
, face_id
));
3021 /* For historic reasons, FONT_WIDTH refers to average width on W32,
3022 not maximum as on X. Redefine here. */
3024 #define FONT_WIDTH FONT_MAX_WIDTH
3027 if (face
&& face
->font
)
3028 size
= FONT_WIDTH (face
->font
);
3030 size
= FONT_WIDTH (FRAME_FONT (f
)); /* FRAME_COLUMN_WIDTH (f) */
3033 size
*= XINT (width
);
3037 Lisp_Object args
[2];
3039 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
3041 /* We don't have to check fontsets. */
3043 args
[1] = list_fontsets (f
, pattern
, size
);
3044 return Fnconc (2, args
);
3048 #endif /* HAVE_WINDOW_SYSTEM */
3052 /***********************************************************************
3054 ***********************************************************************/
3056 /* Access face attributes of face LFACE, a Lisp vector. */
3058 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
3059 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
3060 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
3061 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
3062 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
3063 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
3064 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
3065 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
3066 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
3067 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
3068 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
3069 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
3070 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
3071 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
3072 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
3073 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
3075 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
3076 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
3078 #define LFACEP(LFACE) \
3080 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
3081 && EQ (AREF (LFACE, 0), Qface))
3086 /* Check consistency of Lisp face attribute vector ATTRS. */
3089 check_lface_attrs (attrs
)
3092 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
3093 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
3094 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
3095 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
3096 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
3097 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
3098 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
3099 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
3100 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
3101 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
3102 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
3103 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
3104 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
3105 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
3106 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
3107 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
3108 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
3109 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
3110 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
3111 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
3112 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3113 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
3114 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
3115 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
3116 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
3117 || STRINGP (attrs
[LFACE_BOX_INDEX
])
3118 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
3119 || CONSP (attrs
[LFACE_BOX_INDEX
]));
3120 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
3121 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
3122 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
3123 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
3124 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
3125 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
3126 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
3127 || NILP (attrs
[LFACE_INHERIT_INDEX
])
3128 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
3129 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
3130 #ifdef HAVE_WINDOW_SYSTEM
3131 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
3132 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
3133 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
3134 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
3135 || NILP (attrs
[LFACE_FONT_INDEX
])
3136 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
3141 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
3149 xassert (LFACEP (lface
));
3150 check_lface_attrs (XVECTOR (lface
)->contents
);
3154 #else /* GLYPH_DEBUG == 0 */
3156 #define check_lface_attrs(attrs) (void) 0
3157 #define check_lface(lface) (void) 0
3159 #endif /* GLYPH_DEBUG == 0 */
3163 /* Face-merge cycle checking. */
3165 /* A `named merge point' is simply a point during face-merging where we
3166 look up a face by name. We keep a stack of which named lookups we're
3167 currently processing so that we can easily detect cycles, using a
3168 linked- list of struct named_merge_point structures, typically
3169 allocated on the stack frame of the named lookup functions which are
3170 active (so no consing is required). */
3171 struct named_merge_point
3173 Lisp_Object face_name
;
3174 struct named_merge_point
*prev
;
3178 /* If a face merging cycle is detected for FACE_NAME, return 0,
3179 otherwise add NEW_NAMED_MERGE_POINT, which is initialized using
3180 FACE_NAME, as the head of the linked list pointed to by
3181 NAMED_MERGE_POINTS, and return 1. */
3184 push_named_merge_point (struct named_merge_point
*new_named_merge_point
,
3185 Lisp_Object face_name
,
3186 struct named_merge_point
**named_merge_points
)
3188 struct named_merge_point
*prev
;
3190 for (prev
= *named_merge_points
; prev
; prev
= prev
->prev
)
3191 if (EQ (face_name
, prev
->face_name
))
3194 new_named_merge_point
->face_name
= face_name
;
3195 new_named_merge_point
->prev
= *named_merge_points
;
3197 *named_merge_points
= new_named_merge_point
;
3205 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
3206 to make it a symvol. If FACE_NAME is an alias for another face,
3207 return that face's name. */
3210 resolve_face_name (face_name
)
3211 Lisp_Object face_name
;
3213 Lisp_Object aliased
;
3215 if (STRINGP (face_name
))
3216 face_name
= intern (SDATA (face_name
));
3218 while (SYMBOLP (face_name
))
3220 aliased
= Fget (face_name
, Qface_alias
);
3224 face_name
= aliased
;
3231 /* Return the face definition of FACE_NAME on frame F. F null means
3232 return the definition for new frames. FACE_NAME may be a string or
3233 a symbol (apparently Emacs 20.2 allowed strings as face names in
3234 face text properties; Ediff uses that). If FACE_NAME is an alias
3235 for another face, return that face's definition. If SIGNAL_P is
3236 non-zero, signal an error if FACE_NAME is not a valid face name.
3237 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3240 static INLINE Lisp_Object
3241 lface_from_face_name (f
, face_name
, signal_p
)
3243 Lisp_Object face_name
;
3248 face_name
= resolve_face_name (face_name
);
3251 lface
= assq_no_quit (face_name
, f
->face_alist
);
3253 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3256 lface
= XCDR (lface
);
3258 signal_error ("Invalid face", face_name
);
3260 check_lface (lface
);
3265 /* Get face attributes of face FACE_NAME from frame-local faces on
3266 frame F. Store the resulting attributes in ATTRS which must point
3267 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3268 is non-zero, signal an error if FACE_NAME does not name a face.
3269 Otherwise, value is zero if FACE_NAME is not a face. */
3272 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3274 Lisp_Object face_name
;
3281 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3284 bcopy (XVECTOR (lface
)->contents
, attrs
,
3285 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3295 /* Non-zero if all attributes in face attribute vector ATTRS are
3296 specified, i.e. are non-nil. */
3299 lface_fully_specified_p (attrs
)
3304 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3305 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3306 && i
!= LFACE_AVGWIDTH_INDEX
)
3307 if (UNSPECIFIEDP (attrs
[i
])
3309 /* MAC_TODO: No stipple support on Mac OS yet, this index is
3310 always unspecified. */
3311 && i
!= LFACE_STIPPLE_INDEX
3316 return i
== LFACE_VECTOR_SIZE
;
3319 #ifdef HAVE_WINDOW_SYSTEM
3321 /* Set font-related attributes of Lisp face LFACE from the fullname of
3322 the font opened by FONTNAME. If FORCE_P is zero, set only
3323 unspecified attributes of LFACE. The exception is `font'
3324 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3326 If FONTNAME is not available on frame F,
3327 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3328 If the fullname is not in a valid XLFD format,
3329 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3330 in LFACE and return 1.
3331 Otherwise, return 1. */
3334 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3337 Lisp_Object fontname
;
3338 int force_p
, may_fail_p
;
3340 struct font_name font
;
3345 char *font_name
= SDATA (fontname
);
3346 struct font_info
*font_info
;
3348 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3349 fontset
= fs_query_fontset (fontname
, 0);
3351 font_name
= SDATA (fontset_ascii (fontset
));
3353 /* Check if FONT_NAME is surely available on the system. Usually
3354 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3355 returns quickly. But, even if FONT_NAME is not yet cached,
3356 caching it now is not futail because we anyway load the font
3359 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3369 font
.name
= STRDUPA (font_info
->full_name
);
3370 have_xlfd_p
= split_font_name (f
, &font
, 1);
3372 /* Set attributes only if unspecified, otherwise face defaults for
3373 new frames would never take effect. If we couldn't get a font
3374 name conforming to XLFD, set normal values. */
3376 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3381 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3382 + strlen (font
.fields
[XLFD_FOUNDRY
])
3384 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3385 font
.fields
[XLFD_FAMILY
]);
3386 val
= build_string (buffer
);
3389 val
= build_string ("*");
3390 LFACE_FAMILY (lface
) = val
;
3393 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3396 pt
= xlfd_point_size (f
, &font
);
3398 pt
= pixel_point_size (f
, font_info
->height
* 10);
3400 LFACE_HEIGHT (lface
) = make_number (pt
);
3403 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3404 LFACE_SWIDTH (lface
)
3405 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3407 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3408 LFACE_AVGWIDTH (lface
)
3410 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3413 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3414 LFACE_WEIGHT (lface
)
3415 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3417 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3419 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3421 LFACE_FONT (lface
) = fontname
;
3426 #endif /* HAVE_WINDOW_SYSTEM */
3429 /* Merges the face height FROM with the face height TO, and returns the
3430 merged height. If FROM is an invalid height, then INVALID is
3431 returned instead. FROM and TO may be either absolute face heights or
3432 `relative' heights; the returned value is always an absolute height
3433 unless both FROM and TO are relative. GCPRO is a lisp value that
3434 will be protected from garbage-collection if this function makes a
3438 merge_face_heights (from
, to
, invalid
, gcpro
)
3439 Lisp_Object from
, to
, invalid
, gcpro
;
3441 Lisp_Object result
= invalid
;
3443 if (INTEGERP (from
))
3444 /* FROM is absolute, just use it as is. */
3446 else if (FLOATP (from
))
3447 /* FROM is a scale, use it to adjust TO. */
3450 /* relative X absolute => absolute */
3451 result
= make_number ((EMACS_INT
)(XFLOAT_DATA (from
) * XINT (to
)));
3452 else if (FLOATP (to
))
3453 /* relative X relative => relative */
3454 result
= make_float (XFLOAT_DATA (from
) * XFLOAT_DATA (to
));
3455 else if (UNSPECIFIEDP (to
))
3458 else if (FUNCTIONP (from
))
3459 /* FROM is a function, which use to adjust TO. */
3461 /* Call function with current height as argument.
3462 From is the new height. */
3463 Lisp_Object args
[2];
3464 struct gcpro gcpro1
;
3470 result
= safe_call (2, args
);
3474 /* Ensure that if TO was absolute, so is the result. */
3475 if (INTEGERP (to
) && !INTEGERP (result
))
3483 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3484 store the resulting attributes in TO, which must be already be
3485 completely specified and contain only absolute attributes. Every
3486 specified attribute of FROM overrides the corresponding attribute of
3487 TO; relative attributes in FROM are merged with the absolute value in
3488 TO and replace it. NAMED_MERGE_POINTS is used internally to detect
3489 loops in face inheritance; it should be 0 when called from other
3493 merge_face_vectors (f
, from
, to
, named_merge_points
)
3495 Lisp_Object
*from
, *to
;
3496 struct named_merge_point
*named_merge_points
;
3500 /* If FROM inherits from some other faces, merge their attributes into
3501 TO before merging FROM's direct attributes. Note that an :inherit
3502 attribute of `unspecified' is the same as one of nil; we never
3503 merge :inherit attributes, so nil is more correct, but lots of
3504 other code uses `unspecified' as a generic value for face attributes. */
3505 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3506 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3507 merge_face_ref (f
, from
[LFACE_INHERIT_INDEX
], to
, 0, named_merge_points
);
3509 /* If TO specifies a :font attribute, and FROM specifies some
3510 font-related attribute, we need to clear TO's :font attribute
3511 (because it will be inconsistent with whatever FROM specifies, and
3512 FROM takes precedence). */
3513 if (!NILP (to
[LFACE_FONT_INDEX
])
3514 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3515 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3516 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3517 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3518 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3519 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3520 to
[LFACE_FONT_INDEX
] = Qnil
;
3522 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3523 if (!UNSPECIFIEDP (from
[i
]))
3525 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3526 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
],
3527 named_merge_points
);
3532 /* TO is always an absolute face, which should inherit from nothing.
3533 We blindly copy the :inherit attribute above and fix it up here. */
3534 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3537 /* Merge the named face FACE_NAME on frame F, into the vector of face
3538 attributes TO. NAMED_MERGE_POINTS is used to detect loops in face
3539 inheritance. Returns true if FACE_NAME is a valid face name and
3540 merging succeeded. */
3543 merge_named_face (f
, face_name
, to
, named_merge_points
)
3545 Lisp_Object face_name
;
3547 struct named_merge_point
*named_merge_points
;
3549 struct named_merge_point named_merge_point
;
3551 if (push_named_merge_point (&named_merge_point
,
3552 face_name
, &named_merge_points
))
3554 Lisp_Object from
[LFACE_VECTOR_SIZE
];
3555 int ok
= get_lface_attributes (f
, face_name
, from
, 0);
3558 merge_face_vectors (f
, from
, to
, named_merge_points
);
3567 /* Merge face attributes from the lisp `face reference' FACE_REF on
3568 frame F into the face attribute vector TO. If ERR_MSGS is non-zero,
3569 problems with FACE_REF cause an error message to be shown. Return
3570 non-zero if no errors occurred (regardless of the value of ERR_MSGS).
3571 NAMED_MERGE_POINTS is used to detect loops in face inheritance or
3572 list structure; it may be 0 for most callers.
3574 FACE_REF may be a single face specification or a list of such
3575 specifications. Each face specification can be:
3577 1. A symbol or string naming a Lisp face.
3579 2. A property list of the form (KEYWORD VALUE ...) where each
3580 KEYWORD is a face attribute name, and value is an appropriate value
3583 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3584 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3585 for compatibility with 20.2.
3587 Face specifications earlier in lists take precedence over later
3591 merge_face_ref (f
, face_ref
, to
, err_msgs
, named_merge_points
)
3593 Lisp_Object face_ref
;
3596 struct named_merge_point
*named_merge_points
;
3598 int ok
= 1; /* Succeed without an error? */
3600 if (CONSP (face_ref
))
3602 Lisp_Object first
= XCAR (face_ref
);
3604 if (EQ (first
, Qforeground_color
)
3605 || EQ (first
, Qbackground_color
))
3607 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3608 . COLOR). COLOR must be a string. */
3609 Lisp_Object color_name
= XCDR (face_ref
);
3610 Lisp_Object color
= first
;
3612 if (STRINGP (color_name
))
3614 if (EQ (color
, Qforeground_color
))
3615 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3617 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3622 add_to_log ("Invalid face color", color_name
, Qnil
);
3626 else if (SYMBOLP (first
)
3627 && *SDATA (SYMBOL_NAME (first
)) == ':')
3629 /* Assume this is the property list form. */
3630 while (CONSP (face_ref
) && CONSP (XCDR (face_ref
)))
3632 Lisp_Object keyword
= XCAR (face_ref
);
3633 Lisp_Object value
= XCAR (XCDR (face_ref
));
3636 /* Specifying `unspecified' is a no-op. */
3637 if (EQ (value
, Qunspecified
))
3639 else if (EQ (keyword
, QCfamily
))
3641 if (STRINGP (value
))
3642 to
[LFACE_FAMILY_INDEX
] = value
;
3646 else if (EQ (keyword
, QCheight
))
3648 Lisp_Object new_height
=
3649 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3652 if (! NILP (new_height
))
3653 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3657 else if (EQ (keyword
, QCweight
))
3660 && face_numeric_weight (value
) >= 0)
3661 to
[LFACE_WEIGHT_INDEX
] = value
;
3665 else if (EQ (keyword
, QCslant
))
3668 && face_numeric_slant (value
) >= 0)
3669 to
[LFACE_SLANT_INDEX
] = value
;
3673 else if (EQ (keyword
, QCunderline
))
3678 to
[LFACE_UNDERLINE_INDEX
] = value
;
3682 else if (EQ (keyword
, QCoverline
))
3687 to
[LFACE_OVERLINE_INDEX
] = value
;
3691 else if (EQ (keyword
, QCstrike_through
))
3696 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3700 else if (EQ (keyword
, QCbox
))
3703 value
= make_number (1);
3704 if (INTEGERP (value
)
3708 to
[LFACE_BOX_INDEX
] = value
;
3712 else if (EQ (keyword
, QCinverse_video
)
3713 || EQ (keyword
, QCreverse_video
))
3715 if (EQ (value
, Qt
) || NILP (value
))
3716 to
[LFACE_INVERSE_INDEX
] = value
;
3720 else if (EQ (keyword
, QCforeground
))
3722 if (STRINGP (value
))
3723 to
[LFACE_FOREGROUND_INDEX
] = value
;
3727 else if (EQ (keyword
, QCbackground
))
3729 if (STRINGP (value
))
3730 to
[LFACE_BACKGROUND_INDEX
] = value
;
3734 else if (EQ (keyword
, QCstipple
))
3736 #ifdef HAVE_X_WINDOWS
3737 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3738 if (!NILP (pixmap_p
))
3739 to
[LFACE_STIPPLE_INDEX
] = value
;
3744 else if (EQ (keyword
, QCwidth
))
3747 && face_numeric_swidth (value
) >= 0)
3748 to
[LFACE_SWIDTH_INDEX
] = value
;
3752 else if (EQ (keyword
, QCinherit
))
3754 /* This is not really very useful; it's just like a
3755 normal face reference. */
3756 if (! merge_face_ref (f
, value
, to
,
3757 err_msgs
, named_merge_points
))
3765 add_to_log ("Invalid face attribute %S %S", keyword
, value
);
3769 face_ref
= XCDR (XCDR (face_ref
));
3774 /* This is a list of face refs. Those at the beginning of the
3775 list take precedence over what follows, so we have to merge
3776 from the end backwards. */
3777 Lisp_Object next
= XCDR (face_ref
);
3780 ok
= merge_face_ref (f
, next
, to
, err_msgs
, named_merge_points
);
3782 if (! merge_face_ref (f
, first
, to
, err_msgs
, named_merge_points
))
3788 /* FACE_REF ought to be a face name. */
3789 ok
= merge_named_face (f
, face_ref
, to
, named_merge_points
);
3790 if (!ok
&& err_msgs
)
3791 add_to_log ("Invalid face reference: %s", face_ref
, Qnil
);
3798 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3799 Sinternal_make_lisp_face
, 1, 2, 0,
3800 doc
: /* Make FACE, a symbol, a Lisp face with all attributes nil.
3801 If FACE was not known as a face before, create a new one.
3802 If optional argument FRAME is specified, make a frame-local face
3803 for that frame. Otherwise operate on the global face definition.
3804 Value is a vector of face attributes. */)
3806 Lisp_Object face
, frame
;
3808 Lisp_Object global_lface
, lface
;
3812 CHECK_SYMBOL (face
);
3813 global_lface
= lface_from_face_name (NULL
, face
, 0);
3817 CHECK_LIVE_FRAME (frame
);
3819 lface
= lface_from_face_name (f
, face
, 0);
3822 f
= NULL
, lface
= Qnil
;
3824 /* Add a global definition if there is none. */
3825 if (NILP (global_lface
))
3827 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3829 AREF (global_lface
, 0) = Qface
;
3830 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3831 Vface_new_frame_defaults
);
3833 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3834 face id to Lisp face is given by the vector lface_id_to_name.
3835 The mapping from Lisp face to Lisp face id is given by the
3836 property `face' of the Lisp face name. */
3837 if (next_lface_id
== lface_id_to_name_size
)
3839 int new_size
= max (50, 2 * lface_id_to_name_size
);
3840 int sz
= new_size
* sizeof *lface_id_to_name
;
3841 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3842 lface_id_to_name_size
= new_size
;
3845 lface_id_to_name
[next_lface_id
] = face
;
3846 Fput (face
, Qface
, make_number (next_lface_id
));
3850 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3851 AREF (global_lface
, i
) = Qunspecified
;
3853 /* Add a frame-local definition. */
3858 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3860 AREF (lface
, 0) = Qface
;
3861 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3864 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3865 AREF (lface
, i
) = Qunspecified
;
3868 lface
= global_lface
;
3870 /* Changing a named face means that all realized faces depending on
3871 that face are invalid. Since we cannot tell which realized faces
3872 depend on the face, make sure they are all removed. This is done
3873 by incrementing face_change_count. The next call to
3874 init_iterator will then free realized faces. */
3875 if (NILP (Fget (face
, Qface_no_inherit
)))
3877 ++face_change_count
;
3878 ++windows_or_buffers_changed
;
3881 xassert (LFACEP (lface
));
3882 check_lface (lface
);
3887 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3888 Sinternal_lisp_face_p
, 1, 2, 0,
3889 doc
: /* Return non-nil if FACE names a face.
3890 If optional second parameter FRAME is non-nil, check for the
3891 existence of a frame-local face with name FACE on that frame.
3892 Otherwise check for the existence of a global face. */)
3894 Lisp_Object face
, frame
;
3900 CHECK_LIVE_FRAME (frame
);
3901 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3904 lface
= lface_from_face_name (NULL
, face
, 0);
3910 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3911 Sinternal_copy_lisp_face
, 4, 4, 0,
3912 doc
: /* Copy face FROM to TO.
3913 If FRAME is t, copy the global face definition of FROM.
3914 Otherwise, copy the frame-local definition of FROM on FRAME.
3915 If NEW-FRAME is a frame, copy that data into the frame-local
3916 definition of TO on NEW-FRAME. If NEW-FRAME is nil.
3917 FRAME controls where the data is copied to.
3919 The value is TO. */)
3920 (from
, to
, frame
, new_frame
)
3921 Lisp_Object from
, to
, frame
, new_frame
;
3923 Lisp_Object lface
, copy
;
3925 CHECK_SYMBOL (from
);
3930 /* Copy global definition of FROM. We don't make copies of
3931 strings etc. because 20.2 didn't do it either. */
3932 lface
= lface_from_face_name (NULL
, from
, 1);
3933 copy
= Finternal_make_lisp_face (to
, Qnil
);
3937 /* Copy frame-local definition of FROM. */
3938 if (NILP (new_frame
))
3940 CHECK_LIVE_FRAME (frame
);
3941 CHECK_LIVE_FRAME (new_frame
);
3942 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3943 copy
= Finternal_make_lisp_face (to
, new_frame
);
3946 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3947 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3949 /* Changing a named face means that all realized faces depending on
3950 that face are invalid. Since we cannot tell which realized faces
3951 depend on the face, make sure they are all removed. This is done
3952 by incrementing face_change_count. The next call to
3953 init_iterator will then free realized faces. */
3954 if (NILP (Fget (to
, Qface_no_inherit
)))
3956 ++face_change_count
;
3957 ++windows_or_buffers_changed
;
3964 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3965 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3966 doc
: /* Set attribute ATTR of FACE to VALUE.
3967 FRAME being a frame means change the face on that frame.
3968 FRAME nil means change the face of the selected frame.
3969 FRAME t means change the default for new frames.
3970 FRAME 0 means change the face on all frames, and change the default
3972 (face
, attr
, value
, frame
)
3973 Lisp_Object face
, attr
, value
, frame
;
3976 Lisp_Object old_value
= Qnil
;
3977 /* Set 1 if ATTR is QCfont. */
3978 int font_attr_p
= 0;
3979 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3980 int font_related_attr_p
= 0;
3982 CHECK_SYMBOL (face
);
3983 CHECK_SYMBOL (attr
);
3985 face
= resolve_face_name (face
);
3987 /* If FRAME is 0, change face on all frames, and change the
3988 default for new frames. */
3989 if (INTEGERP (frame
) && XINT (frame
) == 0)
3992 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3993 FOR_EACH_FRAME (tail
, frame
)
3994 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3998 /* Set lface to the Lisp attribute vector of FACE. */
4000 lface
= lface_from_face_name (NULL
, face
, 1);
4004 frame
= selected_frame
;
4006 CHECK_LIVE_FRAME (frame
);
4007 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4009 /* If a frame-local face doesn't exist yet, create one. */
4011 lface
= Finternal_make_lisp_face (face
, frame
);
4014 if (EQ (attr
, QCfamily
))
4016 if (!UNSPECIFIEDP (value
))
4018 CHECK_STRING (value
);
4019 if (SCHARS (value
) == 0)
4020 signal_error ("Invalid face family", value
);
4022 old_value
= LFACE_FAMILY (lface
);
4023 LFACE_FAMILY (lface
) = value
;
4024 font_related_attr_p
= 1;
4026 else if (EQ (attr
, QCheight
))
4028 if (!UNSPECIFIEDP (value
))
4032 test
= (EQ (face
, Qdefault
)
4034 /* The default face must have an absolute size,
4035 otherwise, we do a test merge with a random
4036 height to see if VALUE's ok. */
4037 : merge_face_heights (value
, make_number (10), Qnil
, Qnil
));
4039 if (!INTEGERP (test
) || XINT (test
) <= 0)
4040 signal_error ("Invalid face height", value
);
4043 old_value
= LFACE_HEIGHT (lface
);
4044 LFACE_HEIGHT (lface
) = value
;
4045 font_related_attr_p
= 1;
4047 else if (EQ (attr
, QCweight
))
4049 if (!UNSPECIFIEDP (value
))
4051 CHECK_SYMBOL (value
);
4052 if (face_numeric_weight (value
) < 0)
4053 signal_error ("Invalid face weight", value
);
4055 old_value
= LFACE_WEIGHT (lface
);
4056 LFACE_WEIGHT (lface
) = value
;
4057 font_related_attr_p
= 1;
4059 else if (EQ (attr
, QCslant
))
4061 if (!UNSPECIFIEDP (value
))
4063 CHECK_SYMBOL (value
);
4064 if (face_numeric_slant (value
) < 0)
4065 signal_error ("Invalid face slant", value
);
4067 old_value
= LFACE_SLANT (lface
);
4068 LFACE_SLANT (lface
) = value
;
4069 font_related_attr_p
= 1;
4071 else if (EQ (attr
, QCunderline
))
4073 if (!UNSPECIFIEDP (value
))
4074 if ((SYMBOLP (value
)
4076 && !EQ (value
, Qnil
))
4077 /* Underline color. */
4079 && SCHARS (value
) == 0))
4080 signal_error ("Invalid face underline", value
);
4082 old_value
= LFACE_UNDERLINE (lface
);
4083 LFACE_UNDERLINE (lface
) = value
;
4085 else if (EQ (attr
, QCoverline
))
4087 if (!UNSPECIFIEDP (value
))
4088 if ((SYMBOLP (value
)
4090 && !EQ (value
, Qnil
))
4091 /* Overline color. */
4093 && SCHARS (value
) == 0))
4094 signal_error ("Invalid face overline", value
);
4096 old_value
= LFACE_OVERLINE (lface
);
4097 LFACE_OVERLINE (lface
) = value
;
4099 else if (EQ (attr
, QCstrike_through
))
4101 if (!UNSPECIFIEDP (value
))
4102 if ((SYMBOLP (value
)
4104 && !EQ (value
, Qnil
))
4105 /* Strike-through color. */
4107 && SCHARS (value
) == 0))
4108 signal_error ("Invalid face strike-through", value
);
4110 old_value
= LFACE_STRIKE_THROUGH (lface
);
4111 LFACE_STRIKE_THROUGH (lface
) = value
;
4113 else if (EQ (attr
, QCbox
))
4117 /* Allow t meaning a simple box of width 1 in foreground color
4120 value
= make_number (1);
4122 if (UNSPECIFIEDP (value
))
4124 else if (NILP (value
))
4126 else if (INTEGERP (value
))
4127 valid_p
= XINT (value
) != 0;
4128 else if (STRINGP (value
))
4129 valid_p
= SCHARS (value
) > 0;
4130 else if (CONSP (value
))
4146 if (EQ (k
, QCline_width
))
4148 if (!INTEGERP (v
) || XINT (v
) == 0)
4151 else if (EQ (k
, QCcolor
))
4153 if (!STRINGP (v
) || SCHARS (v
) == 0)
4156 else if (EQ (k
, QCstyle
))
4158 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
4165 valid_p
= NILP (tem
);
4171 signal_error ("Invalid face box", value
);
4173 old_value
= LFACE_BOX (lface
);
4174 LFACE_BOX (lface
) = value
;
4176 else if (EQ (attr
, QCinverse_video
)
4177 || EQ (attr
, QCreverse_video
))
4179 if (!UNSPECIFIEDP (value
))
4181 CHECK_SYMBOL (value
);
4182 if (!EQ (value
, Qt
) && !NILP (value
))
4183 signal_error ("Invalid inverse-video face attribute value", value
);
4185 old_value
= LFACE_INVERSE (lface
);
4186 LFACE_INVERSE (lface
) = value
;
4188 else if (EQ (attr
, QCforeground
))
4190 if (!UNSPECIFIEDP (value
))
4192 /* Don't check for valid color names here because it depends
4193 on the frame (display) whether the color will be valid
4194 when the face is realized. */
4195 CHECK_STRING (value
);
4196 if (SCHARS (value
) == 0)
4197 signal_error ("Empty foreground color value", value
);
4199 old_value
= LFACE_FOREGROUND (lface
);
4200 LFACE_FOREGROUND (lface
) = value
;
4202 else if (EQ (attr
, QCbackground
))
4204 if (!UNSPECIFIEDP (value
))
4206 /* Don't check for valid color names here because it depends
4207 on the frame (display) whether the color will be valid
4208 when the face is realized. */
4209 CHECK_STRING (value
);
4210 if (SCHARS (value
) == 0)
4211 signal_error ("Empty background color value", value
);
4213 old_value
= LFACE_BACKGROUND (lface
);
4214 LFACE_BACKGROUND (lface
) = value
;
4216 else if (EQ (attr
, QCstipple
))
4218 #ifdef HAVE_X_WINDOWS
4219 if (!UNSPECIFIEDP (value
)
4221 && NILP (Fbitmap_spec_p (value
)))
4222 signal_error ("Invalid stipple attribute", value
);
4223 old_value
= LFACE_STIPPLE (lface
);
4224 LFACE_STIPPLE (lface
) = value
;
4225 #endif /* HAVE_X_WINDOWS */
4227 else if (EQ (attr
, QCwidth
))
4229 if (!UNSPECIFIEDP (value
))
4231 CHECK_SYMBOL (value
);
4232 if (face_numeric_swidth (value
) < 0)
4233 signal_error ("Invalid face width", value
);
4235 old_value
= LFACE_SWIDTH (lface
);
4236 LFACE_SWIDTH (lface
) = value
;
4237 font_related_attr_p
= 1;
4239 else if (EQ (attr
, QCfont
))
4241 #ifdef HAVE_WINDOW_SYSTEM
4242 if (EQ (frame
, Qt
) || FRAME_WINDOW_P (XFRAME (frame
)))
4244 /* Set font-related attributes of the Lisp face from an XLFD
4250 f
= SELECTED_FRAME ();
4252 f
= check_x_frame (frame
);
4254 if (!UNSPECIFIEDP (value
))
4256 CHECK_STRING (value
);
4258 /* VALUE may be a fontset name or an alias of fontset. In
4259 such a case, use the base fontset name. */
4260 tmp
= Fquery_fontset (value
, Qnil
);
4264 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4265 signal_error ("Invalid font or fontset name", value
);
4270 #endif /* HAVE_WINDOW_SYSTEM */
4272 else if (EQ (attr
, QCinherit
))
4275 if (SYMBOLP (value
))
4278 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4279 if (!SYMBOLP (XCAR (tail
)))
4282 LFACE_INHERIT (lface
) = value
;
4284 signal_error ("Invalid face inheritance", value
);
4286 else if (EQ (attr
, QCbold
))
4288 old_value
= LFACE_WEIGHT (lface
);
4289 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4290 font_related_attr_p
= 1;
4292 else if (EQ (attr
, QCitalic
))
4294 old_value
= LFACE_SLANT (lface
);
4295 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4296 font_related_attr_p
= 1;
4299 signal_error ("Invalid face attribute name", attr
);
4301 if (font_related_attr_p
4302 && !UNSPECIFIEDP (value
))
4303 /* If a font-related attribute other than QCfont is specified, the
4304 original `font' attribute nor that of default face is useless
4305 to determine a new font. Thus, we set it to nil so that font
4306 selection mechanism doesn't use it. */
4307 LFACE_FONT (lface
) = Qnil
;
4309 /* Changing a named face means that all realized faces depending on
4310 that face are invalid. Since we cannot tell which realized faces
4311 depend on the face, make sure they are all removed. This is done
4312 by incrementing face_change_count. The next call to
4313 init_iterator will then free realized faces. */
4315 && NILP (Fget (face
, Qface_no_inherit
))
4316 && (EQ (attr
, QCfont
)
4317 || NILP (Fequal (old_value
, value
))))
4319 ++face_change_count
;
4320 ++windows_or_buffers_changed
;
4323 if (!UNSPECIFIEDP (value
)
4324 && NILP (Fequal (old_value
, value
)))
4330 if (EQ (face
, Qdefault
))
4332 #ifdef HAVE_WINDOW_SYSTEM
4333 /* Changed font-related attributes of the `default' face are
4334 reflected in changed `font' frame parameters. */
4336 && (font_related_attr_p
|| font_attr_p
)
4337 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4338 set_font_frame_param (frame
, lface
);
4340 #endif /* HAVE_WINDOW_SYSTEM */
4342 if (EQ (attr
, QCforeground
))
4343 param
= Qforeground_color
;
4344 else if (EQ (attr
, QCbackground
))
4345 param
= Qbackground_color
;
4347 #ifdef HAVE_WINDOW_SYSTEM
4349 else if (EQ (face
, Qscroll_bar
))
4351 /* Changing the colors of `scroll-bar' sets frame parameters
4352 `scroll-bar-foreground' and `scroll-bar-background'. */
4353 if (EQ (attr
, QCforeground
))
4354 param
= Qscroll_bar_foreground
;
4355 else if (EQ (attr
, QCbackground
))
4356 param
= Qscroll_bar_background
;
4358 #endif /* not WINDOWSNT */
4359 else if (EQ (face
, Qborder
))
4361 /* Changing background color of `border' sets frame parameter
4363 if (EQ (attr
, QCbackground
))
4364 param
= Qborder_color
;
4366 else if (EQ (face
, Qcursor
))
4368 /* Changing background color of `cursor' sets frame parameter
4370 if (EQ (attr
, QCbackground
))
4371 param
= Qcursor_color
;
4373 else if (EQ (face
, Qmouse
))
4375 /* Changing background color of `mouse' sets frame parameter
4377 if (EQ (attr
, QCbackground
))
4378 param
= Qmouse_color
;
4380 #endif /* HAVE_WINDOW_SYSTEM */
4381 else if (EQ (face
, Qmenu
))
4383 /* Indicate that we have to update the menu bar when
4384 realizing faces on FRAME. FRAME t change the
4385 default for new frames. We do this by setting
4386 setting the flag in new face caches */
4389 struct frame
*f
= XFRAME (frame
);
4390 if (FRAME_FACE_CACHE (f
) == NULL
)
4391 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
4392 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 1;
4395 menu_face_changed_default
= 1;
4401 /* Update `default-frame-alist', which is used for new frames. */
4403 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4406 /* Update the current frame's parameters. */
4409 cons
= XCAR (Vparam_value_alist
);
4410 XSETCAR (cons
, param
);
4411 XSETCDR (cons
, value
);
4412 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4421 #ifdef HAVE_WINDOW_SYSTEM
4423 /* Set the `font' frame parameter of FRAME determined from `default'
4424 face attributes LFACE. If a face or fontset name is explicitely
4425 specfied in LFACE, use it as is. Otherwise, determine a font name
4426 from the other font-related atrributes of LFACE. In that case, if
4427 there's no matching font, signals an error. */
4430 set_font_frame_param (frame
, lface
)
4431 Lisp_Object frame
, lface
;
4433 struct frame
*f
= XFRAME (frame
);
4435 if (FRAME_WINDOW_P (f
))
4437 Lisp_Object font_name
;
4440 if (STRINGP (LFACE_FONT (lface
)))
4441 font_name
= LFACE_FONT (lface
);
4444 /* Choose a font name that reflects LFACE's attributes and has
4445 the registry and encoding pattern specified in the default
4446 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4447 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0, 0);
4449 error ("No font matches the specified attribute");
4450 font_name
= build_string (font
);
4454 f
->default_face_done_p
= 0;
4455 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4460 /* Update the corresponding face when frame parameter PARAM on frame F
4461 has been assigned the value NEW_VALUE. */
4464 update_face_from_frame_parameter (f
, param
, new_value
)
4466 Lisp_Object param
, new_value
;
4468 Lisp_Object face
= Qnil
;
4471 /* If there are no faces yet, give up. This is the case when called
4472 from Fx_create_frame, and we do the necessary things later in
4473 face-set-after-frame-defaults. */
4474 if (NILP (f
->face_alist
))
4477 if (EQ (param
, Qforeground_color
))
4480 lface
= lface_from_face_name (f
, face
, 1);
4481 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4482 ? new_value
: Qunspecified
);
4483 realize_basic_faces (f
);
4485 else if (EQ (param
, Qbackground_color
))
4489 /* Changing the background color might change the background
4490 mode, so that we have to load new defface specs. Call
4491 frame-update-face-colors to do that. */
4492 XSETFRAME (frame
, f
);
4493 call1 (Qframe_update_face_colors
, frame
);
4496 lface
= lface_from_face_name (f
, face
, 1);
4497 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4498 ? new_value
: Qunspecified
);
4499 realize_basic_faces (f
);
4501 else if (EQ (param
, Qborder_color
))
4504 lface
= lface_from_face_name (f
, face
, 1);
4505 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4506 ? new_value
: Qunspecified
);
4508 else if (EQ (param
, Qcursor_color
))
4511 lface
= lface_from_face_name (f
, face
, 1);
4512 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4513 ? new_value
: Qunspecified
);
4515 else if (EQ (param
, Qmouse_color
))
4518 lface
= lface_from_face_name (f
, face
, 1);
4519 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4520 ? new_value
: Qunspecified
);
4523 /* Changing a named face means that all realized faces depending on
4524 that face are invalid. Since we cannot tell which realized faces
4525 depend on the face, make sure they are all removed. This is done
4526 by incrementing face_change_count. The next call to
4527 init_iterator will then free realized faces. */
4529 && NILP (Fget (face
, Qface_no_inherit
)))
4531 ++face_change_count
;
4532 ++windows_or_buffers_changed
;
4537 /* Get the value of X resource RESOURCE, class CLASS for the display
4538 of frame FRAME. This is here because ordinary `x-get-resource'
4539 doesn't take a frame argument. */
4541 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4542 Sinternal_face_x_get_resource
, 3, 3, 0, doc
: /* */)
4543 (resource
, class, frame
)
4544 Lisp_Object resource
, class, frame
;
4546 Lisp_Object value
= Qnil
;
4547 CHECK_STRING (resource
);
4548 CHECK_STRING (class);
4549 CHECK_LIVE_FRAME (frame
);
4551 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4552 resource
, class, Qnil
, Qnil
);
4558 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4559 If VALUE is "on" or "true", return t. If VALUE is "off" or
4560 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4561 error; if SIGNAL_P is zero, return 0. */
4564 face_boolean_x_resource_value (value
, signal_p
)
4568 Lisp_Object result
= make_number (0);
4570 xassert (STRINGP (value
));
4572 if (xstricmp (SDATA (value
), "on") == 0
4573 || xstricmp (SDATA (value
), "true") == 0)
4575 else if (xstricmp (SDATA (value
), "off") == 0
4576 || xstricmp (SDATA (value
), "false") == 0)
4578 else if (xstricmp (SDATA (value
), "unspecified") == 0)
4579 result
= Qunspecified
;
4581 signal_error ("Invalid face attribute value from X resource", value
);
4587 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4588 Finternal_set_lisp_face_attribute_from_resource
,
4589 Sinternal_set_lisp_face_attribute_from_resource
,
4590 3, 4, 0, doc
: /* */)
4591 (face
, attr
, value
, frame
)
4592 Lisp_Object face
, attr
, value
, frame
;
4594 CHECK_SYMBOL (face
);
4595 CHECK_SYMBOL (attr
);
4596 CHECK_STRING (value
);
4598 if (xstricmp (SDATA (value
), "unspecified") == 0)
4599 value
= Qunspecified
;
4600 else if (EQ (attr
, QCheight
))
4602 value
= Fstring_to_number (value
, make_number (10));
4603 if (XINT (value
) <= 0)
4604 signal_error ("Invalid face height from X resource", value
);
4606 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4607 value
= face_boolean_x_resource_value (value
, 1);
4608 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4609 value
= intern (SDATA (value
));
4610 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4611 value
= face_boolean_x_resource_value (value
, 1);
4612 else if (EQ (attr
, QCunderline
)
4613 || EQ (attr
, QCoverline
)
4614 || EQ (attr
, QCstrike_through
))
4616 Lisp_Object boolean_value
;
4618 /* If the result of face_boolean_x_resource_value is t or nil,
4619 VALUE does NOT specify a color. */
4620 boolean_value
= face_boolean_x_resource_value (value
, 0);
4621 if (SYMBOLP (boolean_value
))
4622 value
= boolean_value
;
4624 else if (EQ (attr
, QCbox
))
4625 value
= Fcar (Fread_from_string (value
, Qnil
, Qnil
));
4627 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4630 #endif /* HAVE_WINDOW_SYSTEM */
4633 /***********************************************************************
4635 ***********************************************************************/
4637 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4639 /* Make menus on frame F appear as specified by the `menu' face. */
4642 x_update_menu_appearance (f
)
4645 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4649 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4653 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4654 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4655 const char *myname
= SDATA (Vx_resource_name
);
4658 const char *popup_path
= "popup_menu";
4660 const char *popup_path
= "menu.popup";
4663 if (STRINGP (LFACE_FOREGROUND (lface
)))
4665 sprintf (line
, "%s.%s*foreground: %s",
4667 SDATA (LFACE_FOREGROUND (lface
)));
4668 XrmPutLineResource (&rdb
, line
);
4669 sprintf (line
, "%s.pane.menubar*foreground: %s",
4670 myname
, SDATA (LFACE_FOREGROUND (lface
)));
4671 XrmPutLineResource (&rdb
, line
);
4675 if (STRINGP (LFACE_BACKGROUND (lface
)))
4677 sprintf (line
, "%s.%s*background: %s",
4679 SDATA (LFACE_BACKGROUND (lface
)));
4680 XrmPutLineResource (&rdb
, line
);
4681 sprintf (line
, "%s.pane.menubar*background: %s",
4682 myname
, SDATA (LFACE_BACKGROUND (lface
)));
4683 XrmPutLineResource (&rdb
, line
);
4688 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4689 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4690 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4691 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4692 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4693 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4696 const char *suffix
= "List";
4698 const char *suffix
= "";
4700 sprintf (line
, "%s.pane.menubar*font%s: %s",
4701 myname
, suffix
, face
->font_name
);
4702 XrmPutLineResource (&rdb
, line
);
4703 sprintf (line
, "%s.%s*font%s: %s",
4704 myname
, popup_path
, suffix
, face
->font_name
);
4705 XrmPutLineResource (&rdb
, line
);
4709 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4710 free_frame_menubar (f
);
4714 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4717 DEFUN ("face-attribute-relative-p", Fface_attribute_relative_p
,
4718 Sface_attribute_relative_p
,
4720 doc
: /* Return non-nil if face ATTRIBUTE VALUE is relative. */)
4722 Lisp_Object attribute
, value
;
4724 if (EQ (value
, Qunspecified
))
4726 else if (EQ (attribute
, QCheight
))
4727 return INTEGERP (value
) ? Qnil
: Qt
;
4732 DEFUN ("merge-face-attribute", Fmerge_face_attribute
, Smerge_face_attribute
,
4734 doc
: /* Return face ATTRIBUTE VALUE1 merged with VALUE2.
4735 If VALUE1 or VALUE2 are absolute (see `face-attribute-relative-p'), then
4736 the result will be absolute, otherwise it will be relative. */)
4737 (attribute
, value1
, value2
)
4738 Lisp_Object attribute
, value1
, value2
;
4740 if (EQ (value1
, Qunspecified
))
4742 else if (EQ (attribute
, QCheight
))
4743 return merge_face_heights (value1
, value2
, value1
, Qnil
);
4749 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4750 Sinternal_get_lisp_face_attribute
,
4752 doc
: /* Return face attribute KEYWORD of face SYMBOL.
4753 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid
4754 face attribute name, signal an error.
4755 If the optional argument FRAME is given, report on face SYMBOL in that
4756 frame. If FRAME is t, report on the defaults for face SYMBOL (for new
4757 frames). If FRAME is omitted or nil, use the selected frame. */)
4758 (symbol
, keyword
, frame
)
4759 Lisp_Object symbol
, keyword
, frame
;
4761 Lisp_Object lface
, value
= Qnil
;
4763 CHECK_SYMBOL (symbol
);
4764 CHECK_SYMBOL (keyword
);
4767 lface
= lface_from_face_name (NULL
, symbol
, 1);
4771 frame
= selected_frame
;
4772 CHECK_LIVE_FRAME (frame
);
4773 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4776 if (EQ (keyword
, QCfamily
))
4777 value
= LFACE_FAMILY (lface
);
4778 else if (EQ (keyword
, QCheight
))
4779 value
= LFACE_HEIGHT (lface
);
4780 else if (EQ (keyword
, QCweight
))
4781 value
= LFACE_WEIGHT (lface
);
4782 else if (EQ (keyword
, QCslant
))
4783 value
= LFACE_SLANT (lface
);
4784 else if (EQ (keyword
, QCunderline
))
4785 value
= LFACE_UNDERLINE (lface
);
4786 else if (EQ (keyword
, QCoverline
))
4787 value
= LFACE_OVERLINE (lface
);
4788 else if (EQ (keyword
, QCstrike_through
))
4789 value
= LFACE_STRIKE_THROUGH (lface
);
4790 else if (EQ (keyword
, QCbox
))
4791 value
= LFACE_BOX (lface
);
4792 else if (EQ (keyword
, QCinverse_video
)
4793 || EQ (keyword
, QCreverse_video
))
4794 value
= LFACE_INVERSE (lface
);
4795 else if (EQ (keyword
, QCforeground
))
4796 value
= LFACE_FOREGROUND (lface
);
4797 else if (EQ (keyword
, QCbackground
))
4798 value
= LFACE_BACKGROUND (lface
);
4799 else if (EQ (keyword
, QCstipple
))
4800 value
= LFACE_STIPPLE (lface
);
4801 else if (EQ (keyword
, QCwidth
))
4802 value
= LFACE_SWIDTH (lface
);
4803 else if (EQ (keyword
, QCinherit
))
4804 value
= LFACE_INHERIT (lface
);
4805 else if (EQ (keyword
, QCfont
))
4806 value
= LFACE_FONT (lface
);
4808 signal_error ("Invalid face attribute name", keyword
);
4814 DEFUN ("internal-lisp-face-attribute-values",
4815 Finternal_lisp_face_attribute_values
,
4816 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4817 doc
: /* Return a list of valid discrete values for face attribute ATTR.
4818 Value is nil if ATTR doesn't have a discrete set of valid values. */)
4822 Lisp_Object result
= Qnil
;
4824 CHECK_SYMBOL (attr
);
4826 if (EQ (attr
, QCweight
)
4827 || EQ (attr
, QCslant
)
4828 || EQ (attr
, QCwidth
))
4830 /* Extract permissible symbols from tables. */
4831 struct table_entry
*table
;
4834 if (EQ (attr
, QCweight
))
4835 table
= weight_table
, dim
= DIM (weight_table
);
4836 else if (EQ (attr
, QCslant
))
4837 table
= slant_table
, dim
= DIM (slant_table
);
4839 table
= swidth_table
, dim
= DIM (swidth_table
);
4841 for (i
= 0; i
< dim
; ++i
)
4843 Lisp_Object symbol
= *table
[i
].symbol
;
4844 Lisp_Object tail
= result
;
4847 && !EQ (XCAR (tail
), symbol
))
4851 result
= Fcons (symbol
, result
);
4854 else if (EQ (attr
, QCunderline
))
4855 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4856 else if (EQ (attr
, QCoverline
))
4857 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4858 else if (EQ (attr
, QCstrike_through
))
4859 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4860 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4861 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4867 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4868 Sinternal_merge_in_global_face
, 2, 2, 0,
4869 doc
: /* Add attributes from frame-default definition of FACE to FACE on FRAME.
4870 Default face attributes override any local face attributes. */)
4872 Lisp_Object face
, frame
;
4875 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4877 CHECK_LIVE_FRAME (frame
);
4878 global_lface
= lface_from_face_name (NULL
, face
, 1);
4879 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4880 if (NILP (local_lface
))
4881 local_lface
= Finternal_make_lisp_face (face
, frame
);
4883 /* Make every specified global attribute override the local one.
4884 BEWARE!! This is only used from `face-set-after-frame-default' where
4885 the local frame is defined from default specs in `face-defface-spec'
4886 and those should be overridden by global settings. Hence the strange
4887 "global before local" priority. */
4888 lvec
= XVECTOR (local_lface
)->contents
;
4889 gvec
= XVECTOR (global_lface
)->contents
;
4890 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4891 if (! UNSPECIFIEDP (gvec
[i
]))
4898 /* The following function is implemented for compatibility with 20.2.
4899 The function is used in x-resolve-fonts when it is asked to
4900 return fonts with the same size as the font of a face. This is
4901 done in fontset.el. */
4903 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4904 doc
: /* Return the font name of face FACE, or nil if it is unspecified.
4905 If the optional argument FRAME is given, report on face FACE in that frame.
4906 If FRAME is t, report on the defaults for face FACE (for new frames).
4907 The font default for a face is either nil, or a list
4908 of the form (bold), (italic) or (bold italic).
4909 If FRAME is omitted or nil, use the selected frame. */)
4911 Lisp_Object face
, frame
;
4915 Lisp_Object result
= Qnil
;
4916 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4918 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4919 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4920 result
= Fcons (Qbold
, result
);
4922 if (!UNSPECIFIEDP (LFACE_SLANT (lface
))
4923 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4924 result
= Fcons (Qitalic
, result
);
4930 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4931 int face_id
= lookup_named_face (f
, face
, 0);
4932 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4933 return face
? build_string (face
->font_name
) : Qnil
;
4938 /* Compare face-attribute values v1 and v2 for equality. Value is non-zero if
4939 all attributes are `equal'. Tries to be fast because this function
4940 is called quite often. */
4943 face_attr_equal_p (v1
, v2
)
4946 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4947 and the other is specified. */
4948 if (XTYPE (v1
) != XTYPE (v2
))
4957 if (SBYTES (v1
) != SBYTES (v2
))
4960 return bcmp (SDATA (v1
), SDATA (v2
), SBYTES (v1
)) == 0;
4967 return !NILP (Fequal (v1
, v2
));
4972 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4973 all attributes are `equal'. Tries to be fast because this function
4974 is called quite often. */
4977 lface_equal_p (v1
, v2
)
4978 Lisp_Object
*v1
, *v2
;
4982 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4983 equal_p
= face_attr_equal_p (v1
[i
], v2
[i
]);
4989 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4990 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4991 doc
: /* True if FACE1 and FACE2 are equal.
4992 If the optional argument FRAME is given, report on face FACE in that frame.
4993 If FRAME is t, report on the defaults for face FACE (for new frames).
4994 If FRAME is omitted or nil, use the selected frame. */)
4995 (face1
, face2
, frame
)
4996 Lisp_Object face1
, face2
, frame
;
5000 Lisp_Object lface1
, lface2
;
5005 /* Don't use check_x_frame here because this function is called
5006 before X frames exist. At that time, if FRAME is nil,
5007 selected_frame will be used which is the frame dumped with
5008 Emacs. That frame is not an X frame. */
5009 f
= frame_or_selected_frame (frame
, 2);
5011 lface1
= lface_from_face_name (NULL
, face1
, 1);
5012 lface2
= lface_from_face_name (NULL
, face2
, 1);
5013 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
5014 XVECTOR (lface2
)->contents
);
5015 return equal_p
? Qt
: Qnil
;
5019 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
5020 Sinternal_lisp_face_empty_p
, 1, 2, 0,
5021 doc
: /* True if FACE has no attribute specified.
5022 If the optional argument FRAME is given, report on face FACE in that frame.
5023 If FRAME is t, report on the defaults for face FACE (for new frames).
5024 If FRAME is omitted or nil, use the selected frame. */)
5026 Lisp_Object face
, frame
;
5033 frame
= selected_frame
;
5034 CHECK_LIVE_FRAME (frame
);
5038 lface
= lface_from_face_name (NULL
, face
, 1);
5040 lface
= lface_from_face_name (f
, face
, 1);
5042 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
5043 if (!UNSPECIFIEDP (AREF (lface
, i
)))
5046 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
5050 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
5052 doc
: /* Return an alist of frame-local faces defined on FRAME.
5053 For internal use only. */)
5057 struct frame
*f
= frame_or_selected_frame (frame
, 0);
5058 return f
->face_alist
;
5062 /* Return a hash code for Lisp string STRING with case ignored. Used
5063 below in computing a hash value for a Lisp face. */
5065 static INLINE
unsigned
5066 hash_string_case_insensitive (string
)
5069 const unsigned char *s
;
5071 xassert (STRINGP (string
));
5072 for (s
= SDATA (string
); *s
; ++s
)
5073 hash
= (hash
<< 1) ^ tolower (*s
);
5078 /* Return a hash code for face attribute vector V. */
5080 static INLINE
unsigned
5084 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
5085 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
5086 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
5087 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
5088 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
5089 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
5090 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
5094 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
5095 considering charsets/registries). They do if they specify the same
5096 family, point size, weight, width, slant, and fontset. Both LFACE1
5097 and LFACE2 must be fully-specified. */
5100 lface_same_font_attributes_p (lface1
, lface2
)
5101 Lisp_Object
*lface1
, *lface2
;
5103 xassert (lface_fully_specified_p (lface1
)
5104 && lface_fully_specified_p (lface2
));
5105 return (xstricmp (SDATA (lface1
[LFACE_FAMILY_INDEX
]),
5106 SDATA (lface2
[LFACE_FAMILY_INDEX
])) == 0
5107 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
5108 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
5109 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
5110 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
5111 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
5112 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
5113 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
5114 && STRINGP (lface2
[LFACE_FONT_INDEX
])
5115 && xstricmp (SDATA (lface1
[LFACE_FONT_INDEX
]),
5116 SDATA (lface2
[LFACE_FONT_INDEX
])))));
5121 /***********************************************************************
5123 ***********************************************************************/
5125 /* Allocate and return a new realized face for Lisp face attribute
5128 static struct face
*
5129 make_realized_face (attr
)
5132 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
5133 bzero (face
, sizeof *face
);
5134 face
->ascii_face
= face
;
5135 bcopy (attr
, face
->lface
, sizeof face
->lface
);
5140 /* Free realized face FACE, including its X resources. FACE may
5144 free_realized_face (f
, face
)
5150 #ifdef HAVE_WINDOW_SYSTEM
5151 if (FRAME_WINDOW_P (f
))
5153 /* Free fontset of FACE if it is ASCII face. */
5154 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
5155 free_face_fontset (f
, face
);
5158 x_free_gc (f
, face
->gc
);
5162 free_face_colors (f
, face
);
5163 x_destroy_bitmap (f
, face
->stipple
);
5165 #endif /* HAVE_WINDOW_SYSTEM */
5172 /* Prepare face FACE for subsequent display on frame F. This
5173 allocated GCs if they haven't been allocated yet or have been freed
5174 by clearing the face cache. */
5177 prepare_face_for_display (f
, face
)
5181 #ifdef HAVE_WINDOW_SYSTEM
5182 xassert (FRAME_WINDOW_P (f
));
5187 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5189 xgcv
.foreground
= face
->foreground
;
5190 xgcv
.background
= face
->background
;
5191 #ifdef HAVE_X_WINDOWS
5192 xgcv
.graphics_exposures
= False
;
5194 /* The font of FACE may be null if we couldn't load it. */
5197 #ifdef HAVE_X_WINDOWS
5198 xgcv
.font
= face
->font
->fid
;
5201 xgcv
.font
= face
->font
;
5204 xgcv
.font
= face
->font
;
5210 #ifdef HAVE_X_WINDOWS
5213 xgcv
.fill_style
= FillOpaqueStippled
;
5214 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5215 mask
|= GCFillStyle
| GCStipple
;
5218 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5221 #endif /* HAVE_WINDOW_SYSTEM */
5225 /* Returns the `distance' between the colors X and Y. */
5228 color_distance (x
, y
)
5231 /* This formula is from a paper title `Colour metric' by Thiadmer Riemersma.
5232 Quoting from that paper:
5234 This formula has results that are very close to L*u*v* (with the
5235 modified lightness curve) and, more importantly, it is a more even
5236 algorithm: it does not have a range of colours where it suddenly
5237 gives far from optimal results.
5239 See <http://www.compuphase.com/cmetric.htm> for more info. */
5241 long r
= (x
->red
- y
->red
) >> 8;
5242 long g
= (x
->green
- y
->green
) >> 8;
5243 long b
= (x
->blue
- y
->blue
) >> 8;
5244 long r_mean
= (x
->red
+ y
->red
) >> 9;
5247 (((512 + r_mean
) * r
* r
) >> 8)
5249 + (((767 - r_mean
) * b
* b
) >> 8);
5253 DEFUN ("color-distance", Fcolor_distance
, Scolor_distance
, 2, 3, 0,
5254 doc
: /* Return an integer distance between COLOR1 and COLOR2 on FRAME.
5255 COLOR1 and COLOR2 may be either strings containing the color name,
5256 or lists of the form (RED GREEN BLUE).
5257 If FRAME is unspecified or nil, the current frame is used. */)
5258 (color1
, color2
, frame
)
5259 Lisp_Object color1
, color2
, frame
;
5262 XColor cdef1
, cdef2
;
5265 frame
= selected_frame
;
5266 CHECK_LIVE_FRAME (frame
);
5269 if ((CONSP (color1
) && !parse_rgb_list (color1
, &cdef1
))
5270 || !STRINGP (color1
)
5271 || !defined_color (f
, SDATA (color1
), &cdef1
, 0))
5272 signal_error ("Invalid color", color1
);
5273 if ((CONSP (color2
) && !parse_rgb_list (color2
, &cdef2
))
5274 || !STRINGP (color2
)
5275 || !defined_color (f
, SDATA (color2
), &cdef2
, 0))
5276 signal_error ("Invalid color", color2
);
5278 return make_number (color_distance (&cdef1
, &cdef2
));
5282 /***********************************************************************
5284 ***********************************************************************/
5286 /* Return a new face cache for frame F. */
5288 static struct face_cache
*
5292 struct face_cache
*c
;
5295 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5296 bzero (c
, sizeof *c
);
5297 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5298 c
->buckets
= (struct face
**) xmalloc (size
);
5299 bzero (c
->buckets
, size
);
5301 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5303 c
->menu_face_changed_p
= menu_face_changed_default
;
5308 /* Clear out all graphics contexts for all realized faces, except for
5309 the basic faces. This should be done from time to time just to avoid
5310 keeping too many graphics contexts that are no longer needed. */
5314 struct face_cache
*c
;
5316 if (c
&& FRAME_WINDOW_P (c
->f
))
5318 #ifdef HAVE_WINDOW_SYSTEM
5320 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5322 struct face
*face
= c
->faces_by_id
[i
];
5323 if (face
&& face
->gc
)
5325 x_free_gc (c
->f
, face
->gc
);
5329 #endif /* HAVE_WINDOW_SYSTEM */
5334 /* Free all realized faces in face cache C, including basic faces.
5335 C may be null. If faces are freed, make sure the frame's current
5336 matrix is marked invalid, so that a display caused by an expose
5337 event doesn't try to use faces we destroyed. */
5340 free_realized_faces (c
)
5341 struct face_cache
*c
;
5346 struct frame
*f
= c
->f
;
5348 /* We must block input here because we can't process X events
5349 safely while only some faces are freed, or when the frame's
5350 current matrix still references freed faces. */
5353 for (i
= 0; i
< c
->used
; ++i
)
5355 free_realized_face (f
, c
->faces_by_id
[i
]);
5356 c
->faces_by_id
[i
] = NULL
;
5360 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5361 bzero (c
->buckets
, size
);
5363 /* Must do a thorough redisplay the next time. Mark current
5364 matrices as invalid because they will reference faces freed
5365 above. This function is also called when a frame is
5366 destroyed. In this case, the root window of F is nil. */
5367 if (WINDOWP (f
->root_window
))
5369 clear_current_matrices (f
);
5370 ++windows_or_buffers_changed
;
5378 /* Free all faces realized for multibyte characters on frame F that
5382 free_realized_multibyte_face (f
, fontset
)
5386 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5390 /* We must block input here because we can't process X events safely
5391 while only some faces are freed, or when the frame's current
5392 matrix still references freed faces. */
5395 for (i
= 0; i
< cache
->used
; i
++)
5397 face
= cache
->faces_by_id
[i
];
5399 && face
!= face
->ascii_face
5400 && face
->fontset
== fontset
)
5402 uncache_face (cache
, face
);
5403 free_realized_face (f
, face
);
5407 /* Must do a thorough redisplay the next time. Mark current
5408 matrices as invalid because they will reference faces freed
5409 above. This function is also called when a frame is destroyed.
5410 In this case, the root window of F is nil. */
5411 if (WINDOWP (f
->root_window
))
5413 clear_current_matrices (f
);
5414 ++windows_or_buffers_changed
;
5421 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5422 This is done after attributes of a named face have been changed,
5423 because we can't tell which realized faces depend on that face. */
5426 free_all_realized_faces (frame
)
5432 FOR_EACH_FRAME (rest
, frame
)
5433 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5436 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5440 /* Free face cache C and faces in it, including their X resources. */
5444 struct face_cache
*c
;
5448 free_realized_faces (c
);
5450 xfree (c
->faces_by_id
);
5456 /* Cache realized face FACE in face cache C. HASH is the hash value
5457 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5458 collision list of the face hash table of C. This is done because
5459 otherwise lookup_face would find FACE for every character, even if
5460 faces with the same attributes but for specific characters exist. */
5463 cache_face (c
, face
, hash
)
5464 struct face_cache
*c
;
5468 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5472 if (face
->fontset
>= 0)
5474 struct face
*last
= c
->buckets
[i
];
5485 c
->buckets
[i
] = face
;
5486 face
->prev
= face
->next
= NULL
;
5492 face
->next
= c
->buckets
[i
];
5494 face
->next
->prev
= face
;
5495 c
->buckets
[i
] = face
;
5498 /* Find a free slot in C->faces_by_id and use the index of the free
5499 slot as FACE->id. */
5500 for (i
= 0; i
< c
->used
; ++i
)
5501 if (c
->faces_by_id
[i
] == NULL
)
5505 /* Maybe enlarge C->faces_by_id. */
5508 if (c
->used
== c
->size
)
5511 new_size
= min (2 * c
->size
, MAX_FACE_ID
);
5512 if (new_size
== c
->size
)
5513 abort (); /* Alternatives? ++kfs */
5514 sz
= new_size
* sizeof *c
->faces_by_id
;
5515 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5522 /* Check that FACE got a unique id. */
5527 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5528 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5534 #endif /* GLYPH_DEBUG */
5536 c
->faces_by_id
[i
] = face
;
5540 /* Remove face FACE from cache C. */
5543 uncache_face (c
, face
)
5544 struct face_cache
*c
;
5547 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5550 face
->prev
->next
= face
->next
;
5552 c
->buckets
[i
] = face
->next
;
5555 face
->next
->prev
= face
->prev
;
5557 c
->faces_by_id
[face
->id
] = NULL
;
5558 if (face
->id
== c
->used
)
5563 /* Look up a realized face with face attributes ATTR in the face cache
5564 of frame F. The face will be used to display character C. Value
5565 is the ID of the face found. If no suitable face is found, realize
5566 a new one. In that case, if C is a multibyte character, BASE_FACE
5567 is a face that has the same attributes. */
5570 lookup_face (f
, attr
, c
, base_face
)
5574 struct face
*base_face
;
5576 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5581 xassert (cache
!= NULL
);
5582 check_lface_attrs (attr
);
5584 /* Look up ATTR in the face cache. */
5585 hash
= lface_hash (attr
);
5586 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5588 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5589 if (face
->hash
== hash
5590 && (!FRAME_WINDOW_P (f
)
5591 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5592 && lface_equal_p (face
->lface
, attr
))
5595 /* If not found, realize a new face. */
5597 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5600 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5602 /* When this function is called from face_for_char (in this case, C is
5603 a multibyte character), a fontset of a face returned by
5604 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5605 C) is not sutisfied. The fontset is set for this face by
5606 face_for_char later. */
5608 if (FRAME_WINDOW_P (f
))
5609 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5611 #endif /* GLYPH_DEBUG */
5617 /* Return the face id of the realized face for named face SYMBOL on
5618 frame F suitable for displaying character C. Value is -1 if the
5619 face couldn't be determined, which might happen if the default face
5620 isn't realized and cannot be realized. */
5623 lookup_named_face (f
, symbol
, c
)
5628 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5629 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5630 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5632 if (default_face
== NULL
)
5634 if (!realize_basic_faces (f
))
5636 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5639 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5640 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5641 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5643 return lookup_face (f
, attrs
, c
, NULL
);
5647 /* Return the ID of the realized ASCII face of Lisp face with ID
5648 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5651 ascii_face_of_lisp_face (f
, lface_id
)
5657 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5659 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5660 face_id
= lookup_named_face (f
, face_name
, 0);
5669 /* Return a face for charset ASCII that is like the face with id
5670 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5671 STEPS < 0 means larger. Value is the id of the face. */
5674 smaller_face (f
, face_id
, steps
)
5678 #ifdef HAVE_WINDOW_SYSTEM
5680 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5681 int pt
, last_pt
, last_height
;
5684 struct face
*new_face
;
5686 /* If not called for an X frame, just return the original face. */
5687 if (FRAME_TERMCAP_P (f
))
5690 /* Try in increments of 1/2 pt. */
5691 delta
= steps
< 0 ? 5 : -5;
5692 steps
= abs (steps
);
5694 face
= FACE_FROM_ID (f
, face_id
);
5695 bcopy (face
->lface
, attrs
, sizeof attrs
);
5696 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5697 new_face_id
= face_id
;
5698 last_height
= FONT_HEIGHT (face
->font
);
5702 /* Give up if we cannot find a font within 10pt. */
5703 && abs (last_pt
- pt
) < 100)
5705 /* Look up a face for a slightly smaller/larger font. */
5707 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5708 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5709 new_face
= FACE_FROM_ID (f
, new_face_id
);
5711 /* If height changes, count that as one step. */
5712 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5713 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5716 last_height
= FONT_HEIGHT (new_face
->font
);
5723 #else /* not HAVE_WINDOW_SYSTEM */
5727 #endif /* not HAVE_WINDOW_SYSTEM */
5731 /* Return a face for charset ASCII that is like the face with id
5732 FACE_ID on frame F, but has height HEIGHT. */
5735 face_with_height (f
, face_id
, height
)
5740 #ifdef HAVE_WINDOW_SYSTEM
5742 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5744 if (FRAME_TERMCAP_P (f
)
5748 face
= FACE_FROM_ID (f
, face_id
);
5749 bcopy (face
->lface
, attrs
, sizeof attrs
);
5750 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5751 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5752 #endif /* HAVE_WINDOW_SYSTEM */
5758 /* Return the face id of the realized face for named face SYMBOL on
5759 frame F suitable for displaying character C, and use attributes of
5760 the face FACE_ID for attributes that aren't completely specified by
5761 SYMBOL. This is like lookup_named_face, except that the default
5762 attributes come from FACE_ID, not from the default face. FACE_ID
5763 is assumed to be already realized. */
5766 lookup_derived_face (f
, symbol
, c
, face_id
)
5772 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5773 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5774 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5779 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5780 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5781 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
5782 return lookup_face (f
, attrs
, c
, default_face
);
5785 DEFUN ("face-attributes-as-vector", Fface_attributes_as_vector
,
5786 Sface_attributes_as_vector
, 1, 1, 0,
5787 doc
: /* Return a vector of face attributes corresponding to PLIST. */)
5792 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
5794 merge_face_ref (XFRAME (selected_frame
), plist
, XVECTOR (lface
)->contents
,
5801 /***********************************************************************
5802 Face capability testing
5803 ***********************************************************************/
5806 /* If the distance (as returned by color_distance) between two colors is
5807 less than this, then they are considered the same, for determining
5808 whether a color is supported or not. The range of values is 0-65535. */
5810 #define TTY_SAME_COLOR_THRESHOLD 10000
5812 #ifdef HAVE_WINDOW_SYSTEM
5814 /* Return non-zero if all the face attributes in ATTRS are supported
5815 on the window-system frame F.
5817 The definition of `supported' is somewhat heuristic, but basically means
5818 that a face containing all the attributes in ATTRS, when merged with the
5819 default face for display, can be represented in a way that's
5821 \(1) different in appearance than the default face, and
5822 \(2) `close in spirit' to what the attributes specify, if not exact. */
5825 x_supports_face_attributes_p (f
, attrs
, def_face
)
5828 struct face
*def_face
;
5830 Lisp_Object
*def_attrs
= def_face
->lface
;
5832 /* Check that other specified attributes are different that the default
5834 if ((!UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
5835 && face_attr_equal_p (attrs
[LFACE_UNDERLINE_INDEX
],
5836 def_attrs
[LFACE_UNDERLINE_INDEX
]))
5837 || (!UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
5838 && face_attr_equal_p (attrs
[LFACE_INVERSE_INDEX
],
5839 def_attrs
[LFACE_INVERSE_INDEX
]))
5840 || (!UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
5841 && face_attr_equal_p (attrs
[LFACE_FOREGROUND_INDEX
],
5842 def_attrs
[LFACE_FOREGROUND_INDEX
]))
5843 || (!UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
5844 && face_attr_equal_p (attrs
[LFACE_BACKGROUND_INDEX
],
5845 def_attrs
[LFACE_BACKGROUND_INDEX
]))
5846 || (!UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5847 && face_attr_equal_p (attrs
[LFACE_STIPPLE_INDEX
],
5848 def_attrs
[LFACE_STIPPLE_INDEX
]))
5849 || (!UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5850 && face_attr_equal_p (attrs
[LFACE_OVERLINE_INDEX
],
5851 def_attrs
[LFACE_OVERLINE_INDEX
]))
5852 || (!UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5853 && face_attr_equal_p (attrs
[LFACE_STRIKE_THROUGH_INDEX
],
5854 def_attrs
[LFACE_STRIKE_THROUGH_INDEX
]))
5855 || (!UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5856 && face_attr_equal_p (attrs
[LFACE_BOX_INDEX
],
5857 def_attrs
[LFACE_BOX_INDEX
])))
5860 /* Check font-related attributes, as those are the most commonly
5861 "unsupported" on a window-system (because of missing fonts). */
5862 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5863 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5864 || !UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
5865 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
5866 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5867 || !UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
]))
5870 Lisp_Object merged_attrs
[LFACE_VECTOR_SIZE
];
5872 bcopy (def_attrs
, merged_attrs
, sizeof merged_attrs
);
5874 merge_face_vectors (f
, attrs
, merged_attrs
, 0);
5876 face
= FACE_FROM_ID (f
, lookup_face (f
, merged_attrs
, 0, 0));
5879 error ("cannot make face");
5881 /* If the font is the same, then not supported. */
5882 if (face
->font
== def_face
->font
)
5886 /* Everything checks out, this face is supported. */
5890 #endif /* HAVE_WINDOW_SYSTEM */
5892 /* Return non-zero if all the face attributes in ATTRS are supported
5895 The definition of `supported' is somewhat heuristic, but basically means
5896 that a face containing all the attributes in ATTRS, when merged
5897 with the default face for display, can be represented in a way that's
5899 \(1) different in appearance than the default face, and
5900 \(2) `close in spirit' to what the attributes specify, if not exact.
5902 Point (2) implies that a `:weight black' attribute will be satisfied
5903 by any terminal that can display bold, and a `:foreground "yellow"' as
5904 long as the terminal can display a yellowish color, but `:slant italic'
5905 will _not_ be satisfied by the tty display code's automatic
5906 substitution of a `dim' face for italic. */
5909 tty_supports_face_attributes_p (f
, attrs
, def_face
)
5912 struct face
*def_face
;
5915 Lisp_Object val
, fg
, bg
;
5916 XColor fg_tty_color
, fg_std_color
;
5917 XColor bg_tty_color
, bg_std_color
;
5918 unsigned test_caps
= 0;
5919 Lisp_Object
*def_attrs
= def_face
->lface
;
5922 /* First check some easy-to-check stuff; ttys support none of the
5923 following attributes, so we can just return false if any are requested
5924 (even if `nominal' values are specified, we should still return false,
5925 as that will be the same value that the default face uses). We
5926 consider :slant unsupportable on ttys, even though the face code
5927 actually `fakes' them using a dim attribute if possible. This is
5928 because the faked result is too different from what the face
5930 if (!UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
5931 || !UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
5932 || !UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
5933 || !UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
5934 || !UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
5935 || !UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
5936 || !UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
5937 || !UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
]))
5941 /* Test for terminal `capabilities' (non-color character attributes). */
5943 /* font weight (bold/dim) */
5944 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5947 int def_weight
= face_numeric_weight (def_attrs
[LFACE_WEIGHT_INDEX
]);
5949 if (weight
> XLFD_WEIGHT_MEDIUM
)
5951 if (def_weight
> XLFD_WEIGHT_MEDIUM
)
5952 return 0; /* same as default */
5953 test_caps
= TTY_CAP_BOLD
;
5955 else if (weight
< XLFD_WEIGHT_MEDIUM
)
5957 if (def_weight
< XLFD_WEIGHT_MEDIUM
)
5958 return 0; /* same as default */
5959 test_caps
= TTY_CAP_DIM
;
5961 else if (def_weight
== XLFD_WEIGHT_MEDIUM
)
5962 return 0; /* same as default */
5966 val
= attrs
[LFACE_UNDERLINE_INDEX
];
5967 if (!UNSPECIFIEDP (val
))
5970 return 0; /* ttys can't use colored underlines */
5971 else if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5972 return 0; /* same as default */
5974 test_caps
|= TTY_CAP_UNDERLINE
;
5978 val
= attrs
[LFACE_INVERSE_INDEX
];
5979 if (!UNSPECIFIEDP (val
))
5981 if (face_attr_equal_p (val
, def_attrs
[LFACE_UNDERLINE_INDEX
]))
5982 return 0; /* same as default */
5984 test_caps
|= TTY_CAP_INVERSE
;
5988 /* Color testing. */
5990 /* Default the color indices in FG_TTY_COLOR and BG_TTY_COLOR, since
5991 we use them when calling `tty_capable_p' below, even if the face
5992 specifies no colors. */
5993 fg_tty_color
.pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
5994 bg_tty_color
.pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
5996 /* Check if foreground color is close enough. */
5997 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
6000 Lisp_Object def_fg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6002 if (face_attr_equal_p (fg
, def_fg
))
6003 return 0; /* same as default */
6004 else if (! tty_lookup_color (f
, fg
, &fg_tty_color
, &fg_std_color
))
6005 return 0; /* not a valid color */
6006 else if (color_distance (&fg_tty_color
, &fg_std_color
)
6007 > TTY_SAME_COLOR_THRESHOLD
)
6008 return 0; /* displayed color is too different */
6010 /* Make sure the color is really different than the default. */
6012 XColor def_fg_color
;
6013 if (tty_lookup_color (f
, def_fg
, &def_fg_color
, 0)
6014 && (color_distance (&fg_tty_color
, &def_fg_color
)
6015 <= TTY_SAME_COLOR_THRESHOLD
))
6020 /* Check if background color is close enough. */
6021 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
6024 Lisp_Object def_bg
= def_attrs
[LFACE_FOREGROUND_INDEX
];
6026 if (face_attr_equal_p (bg
, def_bg
))
6027 return 0; /* same as default */
6028 else if (! tty_lookup_color (f
, bg
, &bg_tty_color
, &bg_std_color
))
6029 return 0; /* not a valid color */
6030 else if (color_distance (&bg_tty_color
, &bg_std_color
)
6031 > TTY_SAME_COLOR_THRESHOLD
)
6032 return 0; /* displayed color is too different */
6034 /* Make sure the color is really different than the default. */
6036 XColor def_bg_color
;
6037 if (tty_lookup_color (f
, def_bg
, &def_bg_color
, 0)
6038 && (color_distance (&bg_tty_color
, &def_bg_color
)
6039 <= TTY_SAME_COLOR_THRESHOLD
))
6044 /* If both foreground and background are requested, see if the
6045 distance between them is OK. We just check to see if the distance
6046 between the tty's foreground and background is close enough to the
6047 distance between the standard foreground and background. */
6048 if (STRINGP (fg
) && STRINGP (bg
))
6051 = (color_distance (&fg_std_color
, &bg_std_color
)
6052 - color_distance (&fg_tty_color
, &bg_tty_color
));
6053 if (delta_delta
> TTY_SAME_COLOR_THRESHOLD
6054 || delta_delta
< -TTY_SAME_COLOR_THRESHOLD
)
6059 /* See if the capabilities we selected above are supported, with the
6061 if (test_caps
!= 0 &&
6062 ! tty_capable_p (FRAME_TTY (f
), test_caps
, fg_tty_color
.pixel
, bg_tty_color
.pixel
))
6066 /* Hmmm, everything checks out, this terminal must support this face. */
6071 DEFUN ("display-supports-face-attributes-p",
6072 Fdisplay_supports_face_attributes_p
, Sdisplay_supports_face_attributes_p
,
6074 doc
: /* Return non-nil if all the face attributes in ATTRIBUTES are supported.
6075 The optional argument DISPLAY can be a display name, a frame, or
6076 nil (meaning the selected frame's display)
6078 The definition of `supported' is somewhat heuristic, but basically means
6079 that a face containing all the attributes in ATTRIBUTES, when merged
6080 with the default face for display, can be represented in a way that's
6082 \(1) different in appearance than the default face, and
6083 \(2) `close in spirit' to what the attributes specify, if not exact.
6085 Point (2) implies that a `:weight black' attribute will be satisfied by
6086 any display that can display bold, and a `:foreground \"yellow\"' as long
6087 as it can display a yellowish color, but `:slant italic' will _not_ be
6088 satisfied by the tty display code's automatic substitution of a `dim'
6089 face for italic. */)
6090 (attributes
, display
)
6091 Lisp_Object attributes
, display
;
6096 struct face
*def_face
;
6097 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6099 if (noninteractive
|| !initialized
)
6100 /* We may not be able to access low-level face information in batch
6101 mode, or before being dumped, and this function is not going to
6102 be very useful in those cases anyway, so just give up. */
6106 frame
= selected_frame
;
6107 else if (FRAMEP (display
))
6111 /* Find any frame on DISPLAY. */
6112 Lisp_Object fl_tail
;
6115 for (fl_tail
= Vframe_list
; CONSP (fl_tail
); fl_tail
= XCDR (fl_tail
))
6117 frame
= XCAR (fl_tail
);
6118 if (!NILP (Fequal (Fcdr (Fassq (Qdisplay
,
6119 XFRAME (frame
)->param_alist
)),
6125 CHECK_LIVE_FRAME (frame
);
6128 for (i
= 0; i
< LFACE_VECTOR_SIZE
; i
++)
6129 attrs
[i
] = Qunspecified
;
6130 merge_face_ref (f
, attributes
, attrs
, 1, 0);
6132 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6133 if (def_face
== NULL
)
6135 if (! realize_basic_faces (f
))
6136 error ("Cannot realize default face");
6137 def_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6140 /* Dispatch to the appropriate handler. */
6141 if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6142 supports
= tty_supports_face_attributes_p (f
, attrs
, def_face
);
6143 #ifdef HAVE_WINDOW_SYSTEM
6145 supports
= x_supports_face_attributes_p (f
, attrs
, def_face
);
6148 return supports
? Qt
: Qnil
;
6152 /***********************************************************************
6154 ***********************************************************************/
6156 DEFUN ("internal-set-font-selection-order",
6157 Finternal_set_font_selection_order
,
6158 Sinternal_set_font_selection_order
, 1, 1, 0,
6159 doc
: /* Set font selection order for face font selection to ORDER.
6160 ORDER must be a list of length 4 containing the symbols `:width',
6161 `:height', `:weight', and `:slant'. Face attributes appearing
6162 first in ORDER are matched first, e.g. if `:height' appears before
6163 `:weight' in ORDER, font selection first tries to find a font with
6164 a suitable height, and then tries to match the font weight.
6171 int indices
[DIM (font_sort_order
)];
6174 bzero (indices
, sizeof indices
);
6178 CONSP (list
) && i
< DIM (indices
);
6179 list
= XCDR (list
), ++i
)
6181 Lisp_Object attr
= XCAR (list
);
6184 if (EQ (attr
, QCwidth
))
6186 else if (EQ (attr
, QCheight
))
6187 xlfd
= XLFD_POINT_SIZE
;
6188 else if (EQ (attr
, QCweight
))
6190 else if (EQ (attr
, QCslant
))
6195 if (indices
[i
] != 0)
6200 if (!NILP (list
) || i
!= DIM (indices
))
6201 signal_error ("Invalid font sort order", order
);
6202 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6203 if (indices
[i
] == 0)
6204 signal_error ("Invalid font sort order", order
);
6206 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
6208 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
6209 free_all_realized_faces (Qnil
);
6216 DEFUN ("internal-set-alternative-font-family-alist",
6217 Finternal_set_alternative_font_family_alist
,
6218 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
6219 doc
: /* Define alternative font families to try in face font selection.
6220 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6221 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can
6222 be found. Value is ALIST. */)
6227 Vface_alternative_font_family_alist
= alist
;
6228 free_all_realized_faces (Qnil
);
6233 DEFUN ("internal-set-alternative-font-registry-alist",
6234 Finternal_set_alternative_font_registry_alist
,
6235 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
6236 doc
: /* Define alternative font registries to try in face font selection.
6237 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.
6238 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can
6239 be found. Value is ALIST. */)
6244 Vface_alternative_font_registry_alist
= alist
;
6245 free_all_realized_faces (Qnil
);
6250 #ifdef HAVE_WINDOW_SYSTEM
6252 /* Value is non-zero if FONT is the name of a scalable font. The
6253 X11R6 XLFD spec says that point size, pixel size, and average width
6254 are zero for scalable fonts. Intlfonts contain at least one
6255 scalable font ("*-muleindian-1") for which this isn't true, so we
6256 just test average width. */
6259 font_scalable_p (font
)
6260 struct font_name
*font
;
6262 char *s
= font
->fields
[XLFD_AVGWIDTH
];
6263 return (*s
== '0' && *(s
+ 1) == '\0')
6265 /* Windows implementation of XLFD is slightly broken for backward
6266 compatibility with previous broken versions, so test for
6267 wildcards as well as 0. */
6274 /* Ignore the difference of font point size less than this value. */
6276 #define FONT_POINT_SIZE_QUANTUM 5
6278 /* Value is non-zero if FONT1 is a better match for font attributes
6279 VALUES than FONT2. VALUES is an array of face attribute values in
6280 font sort order. COMPARE_PT_P zero means don't compare point
6281 sizes. AVGWIDTH, if not zero, is a specified font average width
6285 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
6287 struct font_name
*font1
, *font2
;
6288 int compare_pt_p
, avgwidth
;
6292 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6294 int xlfd_idx
= font_sort_order
[i
];
6296 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
6300 if (xlfd_idx
== XLFD_POINT_SIZE
)
6302 delta1
= abs (values
[i
] - (font1
->numeric
[xlfd_idx
]
6303 / font1
->rescale_ratio
));
6304 delta2
= abs (values
[i
] - (font2
->numeric
[xlfd_idx
]
6305 / font2
->rescale_ratio
));
6306 if (abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
6311 delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
6312 delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
6315 if (delta1
> delta2
)
6317 else if (delta1
< delta2
)
6321 /* The difference may be equal because, e.g., the face
6322 specifies `italic' but we have only `regular' and
6323 `oblique'. Prefer `oblique' in this case. */
6324 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
6325 && font1
->numeric
[xlfd_idx
] > values
[i
]
6326 && font2
->numeric
[xlfd_idx
] < values
[i
])
6334 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
6335 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
6336 if (delta1
> delta2
)
6338 else if (delta1
< delta2
)
6344 /* We prefer a real scalable font; i.e. not what autoscaled. */
6345 int auto_scaled_1
= (font1
->numeric
[XLFD_POINT_SIZE
] == 0
6346 && font1
->numeric
[XLFD_RESY
] > 0);
6347 int auto_scaled_2
= (font2
->numeric
[XLFD_POINT_SIZE
] == 0
6348 && font2
->numeric
[XLFD_RESY
] > 0);
6350 if (auto_scaled_1
!= auto_scaled_2
)
6351 return auto_scaled_2
;
6354 return font1
->registry_priority
< font2
->registry_priority
;
6358 /* Value is non-zero if FONT is an exact match for face attributes in
6359 SPECIFIED. SPECIFIED is an array of face attribute values in font
6360 sort order. AVGWIDTH, if non-zero, is an average width to compare
6364 exact_face_match_p (specified
, font
, avgwidth
)
6366 struct font_name
*font
;
6371 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6372 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
6375 return (i
== DIM (font_sort_order
)
6377 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
6381 /* Value is the name of a scaled font, generated from scalable font
6382 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
6383 Value is allocated from heap. */
6386 build_scalable_font_name (f
, font
, specified_pt
)
6388 struct font_name
*font
;
6391 char pixel_size
[20];
6393 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
6396 /* If scalable font is for a specific resolution, compute
6397 the point size we must specify from the resolution of
6398 the display and the specified resolution of the font. */
6399 if (font
->numeric
[XLFD_RESY
] != 0)
6401 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
6402 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
6407 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
6409 /* We may need a font of the different size. */
6410 pixel_value
*= font
->rescale_ratio
;
6412 /* We should keep POINT_SIZE 0. Otherwise, X server can't open a
6413 font of the specified PIXEL_SIZE. */
6415 { /* Set point size of the font. */
6416 char point_size
[20];
6417 sprintf (point_size
, "%d", (int) pt
);
6418 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
6419 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
6423 /* Set pixel size. */
6424 sprintf (pixel_size
, "%d", pixel_value
);
6425 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
6426 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
6428 /* If font doesn't specify its resolution, use the
6429 resolution of the display. */
6430 if (font
->numeric
[XLFD_RESY
] == 0)
6433 sprintf (buffer
, "%d", (int) resy
);
6434 font
->fields
[XLFD_RESY
] = buffer
;
6435 font
->numeric
[XLFD_RESY
] = resy
;
6438 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
6441 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
6442 sprintf (buffer
, "%d", resx
);
6443 font
->fields
[XLFD_RESX
] = buffer
;
6444 font
->numeric
[XLFD_RESX
] = resx
;
6447 return build_font_name (font
);
6451 /* Value is non-zero if we are allowed to use scalable font FONT. We
6452 can't run a Lisp function here since this function may be called
6453 with input blocked. */
6456 may_use_scalable_font_p (font
)
6459 if (EQ (Vscalable_fonts_allowed
, Qt
))
6461 else if (CONSP (Vscalable_fonts_allowed
))
6463 Lisp_Object tail
, regexp
;
6465 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
6467 regexp
= XCAR (tail
);
6468 if (STRINGP (regexp
)
6469 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
6479 /* Return the name of the best matching font for face attributes ATTRS
6480 in the array of font_name structures FONTS which contains NFONTS
6481 elements. WIDTH_RATIO is a factor with which to multiply average
6482 widths if ATTRS specifies such a width.
6484 Value is a font name which is allocated from the heap. FONTS is
6485 freed by this function.
6487 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6488 indicate whether the resulting font should be drawn using overstrike
6489 to simulate bold-face. */
6492 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
, needs_overstrike
)
6495 struct font_name
*fonts
;
6498 int *needs_overstrike
;
6501 struct font_name
*best
;
6504 int exact_p
, avgwidth
;
6509 /* Make specified font attributes available in `specified',
6510 indexed by sort order. */
6511 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6513 int xlfd_idx
= font_sort_order
[i
];
6515 if (xlfd_idx
== XLFD_SWIDTH
)
6516 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
6517 else if (xlfd_idx
== XLFD_POINT_SIZE
)
6518 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
6519 else if (xlfd_idx
== XLFD_WEIGHT
)
6520 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6521 else if (xlfd_idx
== XLFD_SLANT
)
6522 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6527 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
6529 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
6533 if (needs_overstrike
)
6534 *needs_overstrike
= 0;
6536 /* Start with the first non-scalable font in the list. */
6537 for (i
= 0; i
< nfonts
; ++i
)
6538 if (!font_scalable_p (fonts
+ i
))
6541 /* Find the best match among the non-scalable fonts. */
6546 for (i
= 1; i
< nfonts
; ++i
)
6547 if (!font_scalable_p (fonts
+ i
)
6548 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
6552 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
6560 /* Unless we found an exact match among non-scalable fonts, see if
6561 we can find a better match among scalable fonts. */
6564 /* A scalable font is better if
6566 1. its weight, slant, swidth attributes are better, or.
6568 2. the best non-scalable font doesn't have the required
6569 point size, and the scalable fonts weight, slant, swidth
6572 int non_scalable_has_exact_height_p
;
6574 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
6575 non_scalable_has_exact_height_p
= 1;
6577 non_scalable_has_exact_height_p
= 0;
6579 for (i
= 0; i
< nfonts
; ++i
)
6580 if (font_scalable_p (fonts
+ i
))
6583 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
6584 || (!non_scalable_has_exact_height_p
6585 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
6587 non_scalable_has_exact_height_p
= 1;
6592 if (needs_overstrike
)
6594 enum xlfd_weight want_weight
= specified
[XLFD_WEIGHT
];
6595 enum xlfd_weight got_weight
= best
->numeric
[XLFD_WEIGHT
];
6597 if (want_weight
> XLFD_WEIGHT_MEDIUM
&& want_weight
> got_weight
)
6599 /* We want a bold font, but didn't get one; try to use
6600 overstriking instead to simulate bold-face. However,
6601 don't overstrike an already-bold fontn unless the
6602 desired weight grossly exceeds the available weight. */
6603 if (got_weight
> XLFD_WEIGHT_MEDIUM
)
6604 *needs_overstrike
= (got_weight
- want_weight
) > 2;
6606 *needs_overstrike
= 1;
6611 if (font_scalable_p (best
))
6612 font_name
= build_scalable_font_name (f
, best
, pt
);
6614 font_name
= build_font_name (best
);
6616 /* Free font_name structures. */
6617 free_font_names (fonts
, nfonts
);
6623 /* Get a list of matching fonts on frame F, considering FAMILY
6624 and alternative font families from Vface_alternative_font_registry_alist.
6626 FAMILY is the font family whose alternatives are considered.
6628 REGISTRY, if a string, specifies a font registry and encoding to
6629 match. A value of nil means include fonts of any registry and
6632 Return in *FONTS a pointer to a vector of font_name structures for
6633 the fonts matched. Value is the number of fonts found. */
6636 try_alternative_families (f
, family
, registry
, fonts
)
6638 Lisp_Object family
, registry
;
6639 struct font_name
**fonts
;
6644 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6647 /* Try alternative font families. */
6648 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
6651 for (alter
= XCDR (alter
);
6652 CONSP (alter
) && nfonts
== 0;
6653 alter
= XCDR (alter
))
6655 if (STRINGP (XCAR (alter
)))
6656 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
6660 /* Try all scalable fonts before giving up. */
6661 if (nfonts
== 0 && ! EQ (Vscalable_fonts_allowed
, Qt
))
6663 int count
= SPECPDL_INDEX ();
6664 specbind (Qscalable_fonts_allowed
, Qt
);
6665 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6666 unbind_to (count
, Qnil
);
6673 /* Get a list of matching fonts on frame F.
6675 FAMILY, if a string, specifies a font family derived from the fontset.
6676 It is only used if the face does not specify any family in ATTRS or
6677 if we cannot find any font of the face's family.
6679 REGISTRY, if a string, specifies a font registry and encoding to
6680 match. A value of nil means include fonts of any registry and
6683 If PREFER_FACE_FAMILY is nonzero, perfer face's family to FAMILY.
6684 Otherwise, prefer FAMILY.
6686 Return in *FONTS a pointer to a vector of font_name structures for
6687 the fonts matched. Value is the number of fonts found. */
6690 try_font_list (f
, attrs
, family
, registry
, fonts
, prefer_face_family
)
6693 Lisp_Object family
, registry
;
6694 struct font_name
**fonts
;
6695 int prefer_face_family
;
6698 Lisp_Object face_family
= attrs
[LFACE_FAMILY_INDEX
];
6699 Lisp_Object try_family
;
6701 try_family
= (prefer_face_family
|| NILP (family
)) ? face_family
: family
;
6703 if (STRINGP (try_family
))
6704 nfonts
= try_alternative_families (f
, try_family
, registry
, fonts
);
6707 /* When realizing the default face and a font spec does not matched
6708 exactly, Emacs looks for ones with the same registry as the
6709 default font. On the Mac, this is mac-roman, which does not work
6710 if the family is -etl-fixed, e.g. The following widens the
6711 choices and fixes that problem. */
6712 if (nfonts
== 0 && STRINGP (try_family
) && STRINGP (registry
)
6713 && xstricmp (SDATA (registry
), "mac-roman") == 0)
6714 nfonts
= try_alternative_families (f
, try_family
, Qnil
, fonts
);
6717 if (EQ (try_family
, family
))
6718 family
= face_family
;
6720 if (nfonts
== 0 && STRINGP (family
))
6721 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
6723 /* Try font family of the default face or "fixed". */
6726 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6728 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
6730 family
= build_string ("fixed");
6731 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
6734 /* Try any family with the given registry. */
6736 nfonts
= try_alternative_families (f
, Qnil
, registry
, fonts
);
6742 /* Return the fontset id of the base fontset name or alias name given
6743 by the fontset attribute of ATTRS. Value is -1 if the fontset
6744 attribute of ATTRS doesn't name a fontset. */
6747 face_fontset (attrs
)
6752 name
= attrs
[LFACE_FONT_INDEX
];
6753 if (!STRINGP (name
))
6755 return fs_query_fontset (name
, 0);
6759 /* Choose a name of font to use on frame F to display character C with
6760 Lisp face attributes specified by ATTRS. The font name is
6761 determined by the font-related attributes in ATTRS and the name
6762 pattern for C in FONTSET. Value is the font name which is
6763 allocated from the heap and must be freed by the caller, or NULL if
6764 we can get no information about the font name of C. It is assured
6765 that we always get some information for a single byte
6768 If NEEDS_OVERSTRIKE is non-zero, a boolean is returned in it to
6769 indicate whether the resulting font should be drawn using overstrike
6770 to simulate bold-face. */
6773 choose_face_font (f
, attrs
, fontset
, c
, needs_overstrike
)
6777 int *needs_overstrike
;
6779 Lisp_Object pattern
;
6780 char *font_name
= NULL
;
6781 struct font_name
*fonts
;
6782 int nfonts
, width_ratio
;
6784 if (needs_overstrike
)
6785 *needs_overstrike
= 0;
6787 /* Get (foundry and) family name and registry (and encoding) name of
6789 pattern
= fontset_font_pattern (f
, fontset
, c
);
6792 xassert (!SINGLE_BYTE_CHAR_P (c
));
6796 /* If what we got is a name pattern, return it. */
6797 if (STRINGP (pattern
))
6798 return xstrdup (SDATA (pattern
));
6800 /* Get a list of fonts matching that pattern and choose the
6801 best match for the specified face attributes from it. */
6802 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
,
6803 (SINGLE_BYTE_CHAR_P (c
)
6804 || CHAR_CHARSET (c
) == charset_latin_iso8859_1
));
6805 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
6807 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
6808 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
,
6813 #endif /* HAVE_WINDOW_SYSTEM */
6817 /***********************************************************************
6819 ***********************************************************************/
6821 /* Realize basic faces on frame F. Value is zero if frame parameters
6822 of F don't contain enough information needed to realize the default
6826 realize_basic_faces (f
)
6830 int count
= SPECPDL_INDEX ();
6832 /* Block input here so that we won't be surprised by an X expose
6833 event, for instance, without having the faces set up. */
6835 specbind (Qscalable_fonts_allowed
, Qt
);
6837 if (realize_default_face (f
))
6839 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6840 realize_named_face (f
, Qmode_line_inactive
, MODE_LINE_INACTIVE_FACE_ID
);
6841 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6842 realize_named_face (f
, Qfringe
, FRINGE_FACE_ID
);
6843 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6844 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6845 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6846 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6847 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6848 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6850 /* Reflect changes in the `menu' face in menu bars. */
6851 if (FRAME_FACE_CACHE (f
)->menu_face_changed_p
)
6853 FRAME_FACE_CACHE (f
)->menu_face_changed_p
= 0;
6854 #ifdef USE_X_TOOLKIT
6855 if (FRAME_WINDOW_P (f
))
6856 x_update_menu_appearance (f
);
6863 unbind_to (count
, Qnil
);
6869 /* Realize the default face on frame F. If the face is not fully
6870 specified, make it fully-specified. Attributes of the default face
6871 that are not explicitly specified are taken from frame parameters. */
6874 realize_default_face (f
)
6877 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6879 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6880 Lisp_Object frame_font
;
6883 /* If the `default' face is not yet known, create it. */
6884 lface
= lface_from_face_name (f
, Qdefault
, 0);
6888 XSETFRAME (frame
, f
);
6889 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6893 #ifdef HAVE_WINDOW_SYSTEM
6894 if (FRAME_WINDOW_P (f
))
6896 /* Set frame_font to the value of the `font' frame parameter. */
6897 frame_font
= Fassq (Qfont
, f
->param_alist
);
6898 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6899 frame_font
= XCDR (frame_font
);
6900 set_lface_from_font_name (f
, lface
, frame_font
,
6901 f
->default_face_done_p
, 1);
6902 f
->default_face_done_p
= 1;
6904 #endif /* HAVE_WINDOW_SYSTEM */
6906 if (!FRAME_WINDOW_P (f
))
6908 LFACE_FAMILY (lface
) = build_string ("default");
6909 LFACE_SWIDTH (lface
) = Qnormal
;
6910 LFACE_HEIGHT (lface
) = make_number (1);
6911 if (UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
6912 LFACE_WEIGHT (lface
) = Qnormal
;
6913 if (UNSPECIFIEDP (LFACE_SLANT (lface
)))
6914 LFACE_SLANT (lface
) = Qnormal
;
6915 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6918 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6919 LFACE_UNDERLINE (lface
) = Qnil
;
6921 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6922 LFACE_OVERLINE (lface
) = Qnil
;
6924 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6925 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6927 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6928 LFACE_BOX (lface
) = Qnil
;
6930 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6931 LFACE_INVERSE (lface
) = Qnil
;
6933 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6935 /* This function is called so early that colors are not yet
6936 set in the frame parameter list. */
6937 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6939 if (CONSP (color
) && STRINGP (XCDR (color
)))
6940 LFACE_FOREGROUND (lface
) = XCDR (color
);
6941 else if (FRAME_WINDOW_P (f
))
6943 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6944 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6949 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6951 /* This function is called so early that colors are not yet
6952 set in the frame parameter list. */
6953 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6954 if (CONSP (color
) && STRINGP (XCDR (color
)))
6955 LFACE_BACKGROUND (lface
) = XCDR (color
);
6956 else if (FRAME_WINDOW_P (f
))
6958 else if (FRAME_INITIAL_P (f
) || FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6959 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6964 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6965 LFACE_STIPPLE (lface
) = Qnil
;
6967 /* Realize the face; it must be fully-specified now. */
6968 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6969 check_lface (lface
);
6970 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6971 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6976 /* Realize basic faces other than the default face in face cache C.
6977 SYMBOL is the face name, ID is the face id the realized face must
6978 have. The default face must have been realized already. */
6981 realize_named_face (f
, symbol
, id
)
6986 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6987 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6988 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6989 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6990 struct face
*new_face
;
6992 /* The default face must exist and be fully specified. */
6993 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6994 check_lface_attrs (attrs
);
6995 xassert (lface_fully_specified_p (attrs
));
6997 /* If SYMBOL isn't know as a face, create it. */
7001 XSETFRAME (frame
, f
);
7002 lface
= Finternal_make_lisp_face (symbol
, frame
);
7005 /* Merge SYMBOL's face with the default face. */
7006 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
7007 merge_face_vectors (f
, symbol_attrs
, attrs
, 0);
7009 /* Realize the face. */
7010 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
7014 /* Realize the fully-specified face with attributes ATTRS in face
7015 cache CACHE for character C. If C is a multibyte character,
7016 BASE_FACE is a face that has the same attributes. Otherwise,
7017 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
7018 ID of face to remove before caching the new face. Value is a
7019 pointer to the newly created realized face. */
7021 static struct face
*
7022 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
7023 struct face_cache
*cache
;
7026 struct face
*base_face
;
7031 /* LFACE must be fully specified. */
7032 xassert (cache
!= NULL
);
7033 check_lface_attrs (attrs
);
7035 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
7037 /* Remove the former face. */
7038 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
7039 uncache_face (cache
, former_face
);
7040 free_realized_face (cache
->f
, former_face
);
7043 if (FRAME_WINDOW_P (cache
->f
))
7044 face
= realize_x_face (cache
, attrs
, c
, base_face
);
7045 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
7046 face
= realize_tty_face (cache
, attrs
, c
);
7047 else if (FRAME_INITIAL_P (cache
->f
))
7049 /* Create a dummy face. */
7050 face
= make_realized_face (attrs
);
7055 /* Insert the new face. */
7056 cache_face (cache
, face
, lface_hash (attrs
));
7057 #ifdef HAVE_WINDOW_SYSTEM
7058 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
7059 load_face_font (cache
->f
, face
, c
);
7060 #endif /* HAVE_WINDOW_SYSTEM */
7065 /* Realize the fully-specified face with attributes ATTRS in face
7066 cache CACHE for character C. Do it for X frame CACHE->f. If C is
7067 a multibyte character, BASE_FACE is a face that has the same
7068 attributes. Otherwise, BASE_FACE is ignored. If the new face
7069 doesn't share font with the default face, a fontname is allocated
7070 from the heap and set in `font_name' of the new face, but it is not
7071 yet loaded here. Value is a pointer to the newly created realized
7074 static struct face
*
7075 realize_x_face (cache
, attrs
, c
, base_face
)
7076 struct face_cache
*cache
;
7079 struct face
*base_face
;
7081 #ifdef HAVE_WINDOW_SYSTEM
7082 struct face
*face
, *default_face
;
7084 Lisp_Object stipple
, overline
, strike_through
, box
;
7086 xassert (FRAME_WINDOW_P (cache
->f
));
7087 xassert (SINGLE_BYTE_CHAR_P (c
)
7090 /* Allocate a new realized face. */
7091 face
= make_realized_face (attrs
);
7095 /* If C is a multibyte character, we share all face attirbutes with
7096 BASE_FACE including the realized fontset. But, we must load a
7098 if (!SINGLE_BYTE_CHAR_P (c
))
7100 bcopy (base_face
, face
, sizeof *face
);
7103 /* Don't try to free the colors copied bitwise from BASE_FACE. */
7104 face
->colors_copied_bitwise_p
= 1;
7106 /* to force realize_face to load font */
7111 /* Now we are realizing a face for ASCII (and unibyte) characters. */
7113 /* Determine the font to use. Most of the time, the font will be
7114 the same as the font of the default face, so try that first. */
7115 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7117 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
7118 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
7120 face
->font
= default_face
->font
;
7121 face
->fontset
= default_face
->fontset
;
7122 face
->font_info_id
= default_face
->font_info_id
;
7123 face
->font_name
= default_face
->font_name
;
7124 face
->ascii_face
= face
;
7126 /* But, as we can't share the fontset, make a new realized
7127 fontset that has the same base fontset as of the default
7130 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
7134 /* If the face attribute ATTRS specifies a fontset, use it as
7135 the base of a new realized fontset. Otherwise, use the same
7136 base fontset as of the default face. The base determines
7137 registry and encoding of a font. It may also determine
7138 foundry and family. The other fields of font name pattern
7139 are constructed from ATTRS. */
7140 int fontset
= face_fontset (attrs
);
7142 if ((fontset
== -1) && default_face
)
7143 fontset
= default_face
->fontset
;
7144 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
7145 face
->font
= NULL
; /* to force realize_face to load font */
7148 /* Load colors, and set remaining attributes. */
7150 load_face_colors (f
, face
, attrs
);
7153 box
= attrs
[LFACE_BOX_INDEX
];
7156 /* A simple box of line width 1 drawn in color given by
7158 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
7160 face
->box
= FACE_SIMPLE_BOX
;
7161 face
->box_line_width
= 1;
7163 else if (INTEGERP (box
))
7165 /* Simple box of specified line width in foreground color of the
7167 xassert (XINT (box
) != 0);
7168 face
->box
= FACE_SIMPLE_BOX
;
7169 face
->box_line_width
= XINT (box
);
7170 face
->box_color
= face
->foreground
;
7171 face
->box_color_defaulted_p
= 1;
7173 else if (CONSP (box
))
7175 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
7176 being one of `raised' or `sunken'. */
7177 face
->box
= FACE_SIMPLE_BOX
;
7178 face
->box_color
= face
->foreground
;
7179 face
->box_color_defaulted_p
= 1;
7180 face
->box_line_width
= 1;
7184 Lisp_Object keyword
, value
;
7186 keyword
= XCAR (box
);
7194 if (EQ (keyword
, QCline_width
))
7196 if (INTEGERP (value
) && XINT (value
) != 0)
7197 face
->box_line_width
= XINT (value
);
7199 else if (EQ (keyword
, QCcolor
))
7201 if (STRINGP (value
))
7203 face
->box_color
= load_color (f
, face
, value
,
7205 face
->use_box_color_for_shadows_p
= 1;
7208 else if (EQ (keyword
, QCstyle
))
7210 if (EQ (value
, Qreleased_button
))
7211 face
->box
= FACE_RAISED_BOX
;
7212 else if (EQ (value
, Qpressed_button
))
7213 face
->box
= FACE_SUNKEN_BOX
;
7218 /* Text underline, overline, strike-through. */
7220 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
7222 /* Use default color (same as foreground color). */
7223 face
->underline_p
= 1;
7224 face
->underline_defaulted_p
= 1;
7225 face
->underline_color
= 0;
7227 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
7229 /* Use specified color. */
7230 face
->underline_p
= 1;
7231 face
->underline_defaulted_p
= 0;
7232 face
->underline_color
7233 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
7234 LFACE_UNDERLINE_INDEX
);
7236 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7238 face
->underline_p
= 0;
7239 face
->underline_defaulted_p
= 0;
7240 face
->underline_color
= 0;
7243 overline
= attrs
[LFACE_OVERLINE_INDEX
];
7244 if (STRINGP (overline
))
7246 face
->overline_color
7247 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
7248 LFACE_OVERLINE_INDEX
);
7249 face
->overline_p
= 1;
7251 else if (EQ (overline
, Qt
))
7253 face
->overline_color
= face
->foreground
;
7254 face
->overline_color_defaulted_p
= 1;
7255 face
->overline_p
= 1;
7258 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
7259 if (STRINGP (strike_through
))
7261 face
->strike_through_color
7262 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
7263 LFACE_STRIKE_THROUGH_INDEX
);
7264 face
->strike_through_p
= 1;
7266 else if (EQ (strike_through
, Qt
))
7268 face
->strike_through_color
= face
->foreground
;
7269 face
->strike_through_color_defaulted_p
= 1;
7270 face
->strike_through_p
= 1;
7273 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
7274 if (!NILP (stipple
))
7275 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
7277 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
7279 #endif /* HAVE_WINDOW_SYSTEM */
7283 /* Map a specified color of face FACE on frame F to a tty color index.
7284 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
7285 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
7286 default foreground/background colors. */
7289 map_tty_color (f
, face
, idx
, defaulted
)
7292 enum lface_attribute_index idx
;
7295 Lisp_Object frame
, color
, def
;
7296 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
7297 unsigned long default_pixel
, default_other_pixel
, pixel
;
7299 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
7303 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7304 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7308 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
7309 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
7312 XSETFRAME (frame
, f
);
7313 color
= face
->lface
[idx
];
7317 && CONSP (Vtty_defined_color_alist
)
7318 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
7321 /* Associations in tty-defined-color-alist are of the form
7322 (NAME INDEX R G B). We need the INDEX part. */
7323 pixel
= XINT (XCAR (XCDR (def
)));
7326 if (pixel
== default_pixel
&& STRINGP (color
))
7328 pixel
= load_color (f
, face
, color
, idx
);
7330 #if defined (MSDOS) || defined (WINDOWSNT)
7331 /* If the foreground of the default face is the default color,
7332 use the foreground color defined by the frame. */
7334 if (FRAME_MSDOS_P (f
))
7337 if (pixel
== default_pixel
7338 || pixel
== FACE_TTY_DEFAULT_COLOR
)
7341 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7343 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7344 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7347 else if (pixel
== default_other_pixel
)
7350 pixel
= FRAME_BACKGROUND_PIXEL (f
);
7352 pixel
= FRAME_FOREGROUND_PIXEL (f
);
7353 face
->lface
[idx
] = tty_color_name (f
, pixel
);
7359 #endif /* MSDOS or WINDOWSNT */
7363 face
->foreground
= pixel
;
7365 face
->background
= pixel
;
7369 /* Realize the fully-specified face with attributes ATTRS in face
7370 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
7371 pointer to the newly created realized face. */
7373 static struct face
*
7374 realize_tty_face (cache
, attrs
, c
)
7375 struct face_cache
*cache
;
7381 int face_colors_defaulted
= 0;
7382 struct frame
*f
= cache
->f
;
7384 /* Frame must be a termcap frame. */
7385 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
7387 /* Allocate a new realized face. */
7388 face
= make_realized_face (attrs
);
7389 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
7391 /* Map face attributes to TTY appearances. We map slant to
7392 dimmed text because we want italic text to appear differently
7393 and because dimmed text is probably used infrequently. */
7394 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
7395 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
7397 if (weight
> XLFD_WEIGHT_MEDIUM
)
7398 face
->tty_bold_p
= 1;
7399 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
7400 face
->tty_dim_p
= 1;
7401 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
7402 face
->tty_underline_p
= 1;
7403 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
7404 face
->tty_reverse_p
= 1;
7406 /* Map color names to color indices. */
7407 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
7408 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
7410 /* Swap colors if face is inverse-video. If the colors are taken
7411 from the frame colors, they are already inverted, since the
7412 frame-creation function calls x-handle-reverse-video. */
7413 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
7415 unsigned long tem
= face
->foreground
;
7416 face
->foreground
= face
->background
;
7417 face
->background
= tem
;
7420 if (tty_suppress_bold_inverse_default_colors_p
7422 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
7423 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
7424 face
->tty_bold_p
= 0;
7430 DEFUN ("tty-suppress-bold-inverse-default-colors",
7431 Ftty_suppress_bold_inverse_default_colors
,
7432 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
7433 doc
: /* Suppress/allow boldness of faces with inverse default colors.
7434 SUPPRESS non-nil means suppress it.
7435 This affects bold faces on TTYs whose foreground is the default background
7436 color of the display and whose background is the default foreground color.
7437 For such faces, the bold face attribute is ignored if this variable
7440 Lisp_Object suppress
;
7442 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
7443 ++face_change_count
;
7449 /***********************************************************************
7451 ***********************************************************************/
7453 /* Return the ID of the face to use to display character CH with face
7454 property PROP on frame F in current_buffer. */
7457 compute_char_face (f
, ch
, prop
)
7464 if (NILP (current_buffer
->enable_multibyte_characters
))
7469 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7470 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
7474 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7475 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7476 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7477 merge_face_ref (f
, prop
, attrs
, 1, 0);
7478 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
7484 /* Return the face ID associated with buffer position POS for
7485 displaying ASCII characters. Return in *ENDPTR the position at
7486 which a different face is needed, as far as text properties and
7487 overlays are concerned. W is a window displaying current_buffer.
7489 REGION_BEG, REGION_END delimit the region, so it can be
7492 LIMIT is a position not to scan beyond. That is to limit the time
7493 this function can take.
7495 If MOUSE is non-zero, use the character's mouse-face, not its face.
7497 The face returned is suitable for displaying ASCII characters. */
7500 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
7501 endptr
, limit
, mouse
)
7504 int region_beg
, region_end
;
7509 struct frame
*f
= XFRAME (w
->frame
);
7510 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7511 Lisp_Object prop
, position
;
7513 Lisp_Object
*overlay_vec
;
7516 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
7517 Lisp_Object limit1
, end
;
7518 struct face
*default_face
;
7520 /* W must display the current buffer. We could write this function
7521 to use the frame and buffer of W, but right now it doesn't. */
7522 /* xassert (XBUFFER (w->buffer) == current_buffer); */
7524 XSETFRAME (frame
, f
);
7525 XSETFASTINT (position
, pos
);
7528 if (pos
< region_beg
&& region_beg
< endpos
)
7529 endpos
= region_beg
;
7531 /* Get the `face' or `mouse_face' text property at POS, and
7532 determine the next position at which the property changes. */
7533 prop
= Fget_text_property (position
, propname
, w
->buffer
);
7534 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
7535 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
7537 endpos
= XINT (end
);
7539 /* Look at properties from overlays. */
7543 GET_OVERLAYS_AT (pos
, overlay_vec
, noverlays
, &next_overlay
, 0);
7544 if (next_overlay
< endpos
)
7545 endpos
= next_overlay
;
7550 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
7552 /* Optimize common cases where we can use the default face. */
7555 && !(pos
>= region_beg
&& pos
< region_end
))
7556 return DEFAULT_FACE_ID
;
7558 /* Begin with attributes from the default face. */
7559 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
7561 /* Merge in attributes specified via text properties. */
7563 merge_face_ref (f
, prop
, attrs
, 1, 0);
7565 /* Now merge the overlay data. */
7566 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
7567 for (i
= 0; i
< noverlays
; i
++)
7572 prop
= Foverlay_get (overlay_vec
[i
], propname
);
7574 merge_face_ref (f
, prop
, attrs
, 1, 0);
7576 oend
= OVERLAY_END (overlay_vec
[i
]);
7577 oendpos
= OVERLAY_POSITION (oend
);
7578 if (oendpos
< endpos
)
7582 /* If in the region, merge in the region face. */
7583 if (pos
>= region_beg
&& pos
< region_end
)
7585 merge_named_face (f
, Qregion
, attrs
, 0);
7587 if (region_end
< endpos
)
7588 endpos
= region_end
;
7593 /* Look up a realized face with the given face attributes,
7594 or realize a new one for ASCII characters. */
7595 return lookup_face (f
, attrs
, 0, NULL
);
7599 /* Compute the face at character position POS in Lisp string STRING on
7600 window W, for ASCII characters.
7602 If STRING is an overlay string, it comes from position BUFPOS in
7603 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
7604 not an overlay string. W must display the current buffer.
7605 REGION_BEG and REGION_END give the start and end positions of the
7606 region; both are -1 if no region is visible.
7608 BASE_FACE_ID is the id of a face to merge with. For strings coming
7609 from overlays or the `display' property it is the face at BUFPOS.
7611 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
7613 Set *ENDPTR to the next position where to check for faces in
7614 STRING; -1 if the face is constant from POS to the end of the
7617 Value is the id of the face to use. The face returned is suitable
7618 for displaying ASCII characters. */
7621 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
7622 region_end
, endptr
, base_face_id
, mouse_p
)
7626 int region_beg
, region_end
;
7628 enum face_id base_face_id
;
7631 Lisp_Object prop
, position
, end
, limit
;
7632 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
7633 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
7634 struct face
*base_face
;
7635 int multibyte_p
= STRING_MULTIBYTE (string
);
7636 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
7638 /* Get the value of the face property at the current position within
7639 STRING. Value is nil if there is no face property. */
7640 XSETFASTINT (position
, pos
);
7641 prop
= Fget_text_property (position
, prop_name
, string
);
7643 /* Get the next position at which to check for faces. Value of end
7644 is nil if face is constant all the way to the end of the string.
7645 Otherwise it is a string position where to check faces next.
7646 Limit is the maximum position up to which to check for property
7647 changes in Fnext_single_property_change. Strings are usually
7648 short, so set the limit to the end of the string. */
7649 XSETFASTINT (limit
, SCHARS (string
));
7650 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
7652 *endptr
= XFASTINT (end
);
7656 base_face
= FACE_FROM_ID (f
, base_face_id
);
7657 xassert (base_face
);
7659 /* Optimize the default case that there is no face property and we
7660 are not in the region. */
7662 && (base_face_id
!= DEFAULT_FACE_ID
7663 /* BUFPOS <= 0 means STRING is not an overlay string, so
7664 that the region doesn't have to be taken into account. */
7666 || bufpos
< region_beg
7667 || bufpos
>= region_end
)
7669 /* We can't realize faces for different charsets differently
7670 if we don't have fonts, so we can stop here if not working
7671 on a window-system frame. */
7672 || !FRAME_WINDOW_P (f
)
7673 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
7674 return base_face
->id
;
7676 /* Begin with attributes from the base face. */
7677 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
7679 /* Merge in attributes specified via text properties. */
7681 merge_face_ref (f
, prop
, attrs
, 1, 0);
7683 /* If in the region, merge in the region face. */
7685 && bufpos
>= region_beg
7686 && bufpos
< region_end
)
7687 merge_named_face (f
, Qregion
, attrs
, 0);
7689 /* Look up a realized face with the given face attributes,
7690 or realize a new one for ASCII characters. */
7691 return lookup_face (f
, attrs
, 0, NULL
);
7696 /***********************************************************************
7698 ***********************************************************************/
7702 /* Print the contents of the realized face FACE to stderr. */
7705 dump_realized_face (face
)
7708 fprintf (stderr
, "ID: %d\n", face
->id
);
7709 #ifdef HAVE_X_WINDOWS
7710 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
7712 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7714 SDATA (face
->lface
[LFACE_FOREGROUND_INDEX
]));
7715 fprintf (stderr
, "background: 0x%lx (%s)\n",
7717 SDATA (face
->lface
[LFACE_BACKGROUND_INDEX
]));
7718 fprintf (stderr
, "font_name: %s (%s)\n",
7720 SDATA (face
->lface
[LFACE_FAMILY_INDEX
]));
7721 #ifdef HAVE_X_WINDOWS
7722 fprintf (stderr
, "font = %p\n", face
->font
);
7724 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7725 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7726 fprintf (stderr
, "underline: %d (%s)\n",
7728 SDATA (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
])));
7729 fprintf (stderr
, "hash: %d\n", face
->hash
);
7730 fprintf (stderr
, "charset: %d\n", face
->charset
);
7734 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, doc
: /* */)
7742 fprintf (stderr
, "font selection order: ");
7743 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7744 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7745 fprintf (stderr
, "\n");
7747 fprintf (stderr
, "alternative fonts: ");
7748 debug_print (Vface_alternative_font_family_alist
);
7749 fprintf (stderr
, "\n");
7751 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7752 Fdump_face (make_number (i
));
7758 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7760 error ("Not a valid face");
7761 dump_realized_face (face
);
7768 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7769 0, 0, 0, doc
: /* */)
7772 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7773 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7774 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7778 #endif /* GLYPH_DEBUG != 0 */
7782 /***********************************************************************
7784 ***********************************************************************/
7789 Qface
= intern ("face");
7791 Qface_no_inherit
= intern ("face-no-inherit");
7792 staticpro (&Qface_no_inherit
);
7793 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7794 staticpro (&Qbitmap_spec_p
);
7795 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7796 staticpro (&Qframe_update_face_colors
);
7798 /* Lisp face attribute keywords. */
7799 QCfamily
= intern (":family");
7800 staticpro (&QCfamily
);
7801 QCheight
= intern (":height");
7802 staticpro (&QCheight
);
7803 QCweight
= intern (":weight");
7804 staticpro (&QCweight
);
7805 QCslant
= intern (":slant");
7806 staticpro (&QCslant
);
7807 QCunderline
= intern (":underline");
7808 staticpro (&QCunderline
);
7809 QCinverse_video
= intern (":inverse-video");
7810 staticpro (&QCinverse_video
);
7811 QCreverse_video
= intern (":reverse-video");
7812 staticpro (&QCreverse_video
);
7813 QCforeground
= intern (":foreground");
7814 staticpro (&QCforeground
);
7815 QCbackground
= intern (":background");
7816 staticpro (&QCbackground
);
7817 QCstipple
= intern (":stipple");;
7818 staticpro (&QCstipple
);
7819 QCwidth
= intern (":width");
7820 staticpro (&QCwidth
);
7821 QCfont
= intern (":font");
7822 staticpro (&QCfont
);
7823 QCbold
= intern (":bold");
7824 staticpro (&QCbold
);
7825 QCitalic
= intern (":italic");
7826 staticpro (&QCitalic
);
7827 QCoverline
= intern (":overline");
7828 staticpro (&QCoverline
);
7829 QCstrike_through
= intern (":strike-through");
7830 staticpro (&QCstrike_through
);
7831 QCbox
= intern (":box");
7833 QCinherit
= intern (":inherit");
7834 staticpro (&QCinherit
);
7836 /* Symbols used for Lisp face attribute values. */
7837 QCcolor
= intern (":color");
7838 staticpro (&QCcolor
);
7839 QCline_width
= intern (":line-width");
7840 staticpro (&QCline_width
);
7841 QCstyle
= intern (":style");
7842 staticpro (&QCstyle
);
7843 Qreleased_button
= intern ("released-button");
7844 staticpro (&Qreleased_button
);
7845 Qpressed_button
= intern ("pressed-button");
7846 staticpro (&Qpressed_button
);
7847 Qnormal
= intern ("normal");
7848 staticpro (&Qnormal
);
7849 Qultra_light
= intern ("ultra-light");
7850 staticpro (&Qultra_light
);
7851 Qextra_light
= intern ("extra-light");
7852 staticpro (&Qextra_light
);
7853 Qlight
= intern ("light");
7854 staticpro (&Qlight
);
7855 Qsemi_light
= intern ("semi-light");
7856 staticpro (&Qsemi_light
);
7857 Qsemi_bold
= intern ("semi-bold");
7858 staticpro (&Qsemi_bold
);
7859 Qbold
= intern ("bold");
7861 Qextra_bold
= intern ("extra-bold");
7862 staticpro (&Qextra_bold
);
7863 Qultra_bold
= intern ("ultra-bold");
7864 staticpro (&Qultra_bold
);
7865 Qoblique
= intern ("oblique");
7866 staticpro (&Qoblique
);
7867 Qitalic
= intern ("italic");
7868 staticpro (&Qitalic
);
7869 Qreverse_oblique
= intern ("reverse-oblique");
7870 staticpro (&Qreverse_oblique
);
7871 Qreverse_italic
= intern ("reverse-italic");
7872 staticpro (&Qreverse_italic
);
7873 Qultra_condensed
= intern ("ultra-condensed");
7874 staticpro (&Qultra_condensed
);
7875 Qextra_condensed
= intern ("extra-condensed");
7876 staticpro (&Qextra_condensed
);
7877 Qcondensed
= intern ("condensed");
7878 staticpro (&Qcondensed
);
7879 Qsemi_condensed
= intern ("semi-condensed");
7880 staticpro (&Qsemi_condensed
);
7881 Qsemi_expanded
= intern ("semi-expanded");
7882 staticpro (&Qsemi_expanded
);
7883 Qexpanded
= intern ("expanded");
7884 staticpro (&Qexpanded
);
7885 Qextra_expanded
= intern ("extra-expanded");
7886 staticpro (&Qextra_expanded
);
7887 Qultra_expanded
= intern ("ultra-expanded");
7888 staticpro (&Qultra_expanded
);
7889 Qbackground_color
= intern ("background-color");
7890 staticpro (&Qbackground_color
);
7891 Qforeground_color
= intern ("foreground-color");
7892 staticpro (&Qforeground_color
);
7893 Qunspecified
= intern ("unspecified");
7894 staticpro (&Qunspecified
);
7896 Qface_alias
= intern ("face-alias");
7897 staticpro (&Qface_alias
);
7898 Qdefault
= intern ("default");
7899 staticpro (&Qdefault
);
7900 Qtool_bar
= intern ("tool-bar");
7901 staticpro (&Qtool_bar
);
7902 Qregion
= intern ("region");
7903 staticpro (&Qregion
);
7904 Qfringe
= intern ("fringe");
7905 staticpro (&Qfringe
);
7906 Qheader_line
= intern ("header-line");
7907 staticpro (&Qheader_line
);
7908 Qscroll_bar
= intern ("scroll-bar");
7909 staticpro (&Qscroll_bar
);
7910 Qmenu
= intern ("menu");
7912 Qcursor
= intern ("cursor");
7913 staticpro (&Qcursor
);
7914 Qborder
= intern ("border");
7915 staticpro (&Qborder
);
7916 Qmouse
= intern ("mouse");
7917 staticpro (&Qmouse
);
7918 Qmode_line_inactive
= intern ("mode-line-inactive");
7919 staticpro (&Qmode_line_inactive
);
7920 Qtty_color_desc
= intern ("tty-color-desc");
7921 staticpro (&Qtty_color_desc
);
7922 Qtty_color_standard_values
= intern ("tty-color-standard-values");
7923 staticpro (&Qtty_color_standard_values
);
7924 Qtty_color_by_index
= intern ("tty-color-by-index");
7925 staticpro (&Qtty_color_by_index
);
7926 Qtty_color_alist
= intern ("tty-color-alist");
7927 staticpro (&Qtty_color_alist
);
7928 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7929 staticpro (&Qscalable_fonts_allowed
);
7931 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7932 staticpro (&Vparam_value_alist
);
7933 Vface_alternative_font_family_alist
= Qnil
;
7934 staticpro (&Vface_alternative_font_family_alist
);
7935 Vface_alternative_font_registry_alist
= Qnil
;
7936 staticpro (&Vface_alternative_font_registry_alist
);
7938 defsubr (&Sinternal_make_lisp_face
);
7939 defsubr (&Sinternal_lisp_face_p
);
7940 defsubr (&Sinternal_set_lisp_face_attribute
);
7941 #ifdef HAVE_WINDOW_SYSTEM
7942 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7944 defsubr (&Scolor_gray_p
);
7945 defsubr (&Scolor_supported_p
);
7946 defsubr (&Sface_attribute_relative_p
);
7947 defsubr (&Smerge_face_attribute
);
7948 defsubr (&Sinternal_get_lisp_face_attribute
);
7949 defsubr (&Sinternal_lisp_face_attribute_values
);
7950 defsubr (&Sinternal_lisp_face_equal_p
);
7951 defsubr (&Sinternal_lisp_face_empty_p
);
7952 defsubr (&Sinternal_copy_lisp_face
);
7953 defsubr (&Sinternal_merge_in_global_face
);
7954 defsubr (&Sface_font
);
7955 defsubr (&Sframe_face_alist
);
7956 defsubr (&Sdisplay_supports_face_attributes_p
);
7957 defsubr (&Scolor_distance
);
7958 defsubr (&Sinternal_set_font_selection_order
);
7959 defsubr (&Sinternal_set_alternative_font_family_alist
);
7960 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7961 defsubr (&Sface_attributes_as_vector
);
7963 defsubr (&Sdump_face
);
7964 defsubr (&Sshow_face_resources
);
7965 #endif /* GLYPH_DEBUG */
7966 defsubr (&Sclear_face_cache
);
7967 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7969 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7970 defsubr (&Sdump_colors
);
7973 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7974 doc
: /* *Limit for font matching.
7975 If an integer > 0, font matching functions won't load more than
7976 that number of fonts when searching for a matching font. */);
7977 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7979 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7980 doc
: /* List of global face definitions (for internal use only.) */);
7981 Vface_new_frame_defaults
= Qnil
;
7983 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7984 doc
: /* *Default stipple pattern used on monochrome displays.
7985 This stipple pattern is used on monochrome displays
7986 instead of shades of gray for a face background color.
7987 See `set-face-stipple' for possible values for this variable. */);
7988 Vface_default_stipple
= build_string ("gray3");
7990 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7991 doc
: /* An alist of defined terminal colors and their RGB values. */);
7992 Vtty_defined_color_alist
= Qnil
;
7994 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7995 doc
: /* Allowed scalable fonts.
7996 A value of nil means don't allow any scalable fonts.
7997 A value of t means allow any scalable font.
7998 Otherwise, value must be a list of regular expressions. A font may be
7999 scaled if its name matches a regular expression in the list.
8000 Note that if value is nil, a scalable font might still be used, if no
8001 other font of the appropriate family and registry is available. */);
8002 Vscalable_fonts_allowed
= Qnil
;
8004 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
8005 doc
: /* List of ignored fonts.
8006 Each element is a regular expression that matches names of fonts to
8008 Vface_ignored_fonts
= Qnil
;
8010 DEFVAR_LISP ("face-font-rescale-alist", &Vface_font_rescale_alist
,
8011 doc
: /* Alist of fonts vs the rescaling factors.
8012 Each element is a cons (FONT-NAME-PATTERN . RESCALE-RATIO), where
8013 FONT-NAME-PATTERN is a regular expression matching a font name, and
8014 RESCALE-RATIO is a floating point number to specify how much larger
8015 \(or smaller) font we should use. For instance, if a face requests
8016 a font of 10 point, we actually use a font of 10 * RESCALE-RATIO point. */);
8017 Vface_font_rescale_alist
= Qnil
;
8019 #ifdef HAVE_WINDOW_SYSTEM
8020 defsubr (&Sbitmap_spec_p
);
8021 defsubr (&Sx_list_fonts
);
8022 defsubr (&Sinternal_face_x_get_resource
);
8023 defsubr (&Sx_family_fonts
);
8024 defsubr (&Sx_font_family_list
);
8025 #endif /* HAVE_WINDOW_SYSTEM */
8028 /* arch-tag: 8a0f7598-5517-408d-9ab3-1da6fcd4c749
8029 (do not change this comment) */