1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001
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 attribyte 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 realzied 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 compositition.
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. */
195 #include <sys/types.h>
196 #include <sys/stat.h>
201 #ifdef HAVE_WINDOW_SYSTEM
203 #endif /* HAVE_WINDOW_SYSTEM */
205 #ifdef HAVE_X_WINDOWS
209 #include <Xm/XmStrDefs.h>
210 #endif /* USE_MOTIF */
211 #endif /* HAVE_X_WINDOWS */
220 /* Redefine X specifics to W32 equivalents to avoid cluttering the
221 code with #ifdef blocks. */
222 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
223 #define x_display_info w32_display_info
224 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
225 #define check_x check_w32
226 #define x_list_fonts w32_list_fonts
227 #define GCGraphicsExposures 0
228 /* For historic reasons, FONT_WIDTH refers to average width on W32,
229 not maximum as on X. Redefine here. */
230 #define FONT_WIDTH FONT_MAX_WIDTH
231 #endif /* WINDOWSNT */
235 #define x_display_info mac_display_info
236 #define check_x check_mac
238 extern XGCValues
*XCreateGC (void *, WindowPtr
, unsigned long, XGCValues
*);
241 x_create_gc (f
, mask
, xgcv
)
247 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
256 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
261 #include "dispextern.h"
262 #include "blockinput.h"
264 #include "intervals.h"
266 #ifdef HAVE_X_WINDOWS
268 /* Compensate for a bug in Xos.h on some systems, on which it requires
269 time.h. On some such systems, Xos.h tries to redefine struct
270 timeval and struct timezone if USG is #defined while it is
273 #ifdef XOS_NEEDS_TIME_H
279 #else /* not XOS_NEEDS_TIME_H */
281 #endif /* not XOS_NEEDS_TIME_H */
283 #endif /* HAVE_X_WINDOWS */
287 #include "keyboard.h"
290 #define max(A, B) ((A) > (B) ? (A) : (B))
291 #define min(A, B) ((A) < (B) ? (A) : (B))
292 #define abs(X) ((X) < 0 ? -(X) : (X))
295 /* Number of pt per inch (from the TeXbook). */
297 #define PT_PER_INCH 72.27
299 /* Non-zero if face attribute ATTR is unspecified. */
301 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
303 /* Value is the number of elements of VECTOR. */
305 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
307 /* Make a copy of string S on the stack using alloca. Value is a pointer
310 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
312 /* Make a copy of the contents of Lisp string S on the stack using
313 alloca. Value is a pointer to the copy. */
315 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
317 /* Size of hash table of realized faces in face caches (should be a
320 #define FACE_CACHE_BUCKETS_SIZE 1001
322 /* A definition of XColor for non-X frames. */
324 #ifndef HAVE_X_WINDOWS
329 unsigned short red
, green
, blue
;
335 #endif /* not HAVE_X_WINDOWS */
337 /* Keyword symbols used for face attribute names. */
339 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
340 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
341 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
342 Lisp_Object QCreverse_video
;
343 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
345 /* Symbols used for attribute values. */
347 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
348 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
349 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
350 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
351 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
352 Lisp_Object Qultra_expanded
;
353 Lisp_Object Qreleased_button
, Qpressed_button
;
354 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
355 Lisp_Object Qunspecified
;
357 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
359 /* The name of the function to call when the background of the frame
360 has changed, frame_update_face_colors. */
362 Lisp_Object Qframe_update_face_colors
;
364 /* Names of basic faces. */
366 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
367 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
368 extern Lisp_Object Qmode_line
;
370 /* The symbol `face-alias'. A symbols having that property is an
371 alias for another face. Value of the property is the name of
374 Lisp_Object Qface_alias
;
376 /* Names of frame parameters related to faces. */
378 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
379 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
381 /* Default stipple pattern used on monochrome displays. This stipple
382 pattern is used on monochrome displays instead of shades of gray
383 for a face background color. See `set-face-stipple' for possible
384 values for this variable. */
386 Lisp_Object Vface_default_stipple
;
388 /* Alist of alternative font families. Each element is of the form
389 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
390 try FAMILY1, then FAMILY2, ... */
392 Lisp_Object Vface_alternative_font_family_alist
;
394 /* Alist of alternative font registries. Each element is of the form
395 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
396 loaded, try REGISTRY1, then REGISTRY2, ... */
398 Lisp_Object Vface_alternative_font_registry_alist
;
400 /* Allowed scalable fonts. A value of nil means don't allow any
401 scalable fonts. A value of t means allow the use of any scalable
402 font. Otherwise, value must be a list of regular expressions. A
403 font may be scaled if its name matches a regular expression in the
406 Lisp_Object Vscalable_fonts_allowed
;
408 /* List of regular expressions that matches names of fonts to ignore. */
410 Lisp_Object Vface_ignored_fonts
;
412 /* Maximum number of fonts to consider in font_list. If not an
413 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
415 Lisp_Object Vfont_list_limit
;
416 #define DEFAULT_FONT_LIST_LIMIT 100
418 /* The symbols `foreground-color' and `background-color' which can be
419 used as part of a `face' property. This is for compatibility with
422 Lisp_Object Qforeground_color
, Qbackground_color
;
424 /* The symbols `face' and `mouse-face' used as text properties. */
427 extern Lisp_Object Qmouse_face
;
429 /* Error symbol for wrong_type_argument in load_pixmap. */
431 Lisp_Object Qbitmap_spec_p
;
433 /* Alist of global face definitions. Each element is of the form
434 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
435 is a Lisp vector of face attributes. These faces are used
436 to initialize faces for new frames. */
438 Lisp_Object Vface_new_frame_defaults
;
440 /* The next ID to assign to Lisp faces. */
442 static int next_lface_id
;
444 /* A vector mapping Lisp face Id's to face names. */
446 static Lisp_Object
*lface_id_to_name
;
447 static int lface_id_to_name_size
;
449 /* TTY color-related functions (defined in tty-colors.el). */
451 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
;
453 /* The name of the function used to compute colors on TTYs. */
455 Lisp_Object Qtty_color_alist
;
457 /* An alist of defined terminal colors and their RGB values. */
459 Lisp_Object Vtty_defined_color_alist
;
461 /* Counter for calls to clear_face_cache. If this counter reaches
462 CLEAR_FONT_TABLE_COUNT, and a frame has more than
463 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
465 static int clear_font_table_count
;
466 #define CLEAR_FONT_TABLE_COUNT 100
467 #define CLEAR_FONT_TABLE_NFONTS 10
469 /* Non-zero means face attributes have been changed since the last
470 redisplay. Used in redisplay_internal. */
472 int face_change_count
;
474 /* Incremented for every change in the `menu' face. */
476 int menu_face_change_count
;
478 /* Non-zero means don't display bold text if a face's foreground
479 and background colors are the inverse of the default colors of the
480 display. This is a kluge to suppress `bold black' foreground text
481 which is hard to read on an LCD monitor. */
483 int tty_suppress_bold_inverse_default_colors_p
;
485 /* A list of the form `((x . y))' used to avoid consing in
486 Finternal_set_lisp_face_attribute. */
488 static Lisp_Object Vparam_value_alist
;
490 /* The total number of colors currently allocated. */
493 static int ncolors_allocated
;
494 static int npixmaps_allocated
;
500 /* Function prototypes. */
505 static void map_tty_color
P_ ((struct frame
*, struct face
*,
506 enum lface_attribute_index
, int *));
507 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
508 static int may_use_scalable_font_p
P_ ((struct font_name
*, char *));
509 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
510 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
512 static int first_font_matching
P_ ((struct frame
*f
, char *,
513 struct font_name
*));
514 static int x_face_list_fonts
P_ ((struct frame
*, char *,
515 struct font_name
*, int, int, int));
516 static int font_scalable_p
P_ ((struct font_name
*));
517 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
518 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
519 static unsigned char *xstrlwr
P_ ((unsigned char *));
520 static void signal_error
P_ ((char *, Lisp_Object
));
521 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
522 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
523 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
524 static void free_face_colors
P_ ((struct frame
*, struct face
*));
525 static int face_color_gray_p
P_ ((struct frame
*, char *));
526 static char *build_font_name
P_ ((struct font_name
*));
527 static void free_font_names
P_ ((struct font_name
*, int));
528 static int sorted_font_list
P_ ((struct frame
*, char *,
529 int (*cmpfn
) P_ ((const void *, const void *)),
530 struct font_name
**));
531 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
532 Lisp_Object
, struct font_name
**));
533 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
534 Lisp_Object
, struct font_name
**));
535 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
,
536 Lisp_Object
, Lisp_Object
, struct font_name
**));
537 static int cmp_font_names
P_ ((const void *, const void *));
538 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
539 struct face
*, int));
540 static struct face
*realize_x_face
P_ ((struct face_cache
*,
541 Lisp_Object
*, int, struct face
*));
542 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
543 Lisp_Object
*, int));
544 static int realize_basic_faces
P_ ((struct frame
*));
545 static int realize_default_face
P_ ((struct frame
*));
546 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
547 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
548 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
549 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
550 static unsigned lface_hash
P_ ((Lisp_Object
*));
551 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
552 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
553 static void free_realized_face
P_ ((struct frame
*, struct face
*));
554 static void clear_face_gcs
P_ ((struct face_cache
*));
555 static void free_face_cache
P_ ((struct face_cache
*));
556 static int face_numeric_weight
P_ ((Lisp_Object
));
557 static int face_numeric_slant
P_ ((Lisp_Object
));
558 static int face_numeric_swidth
P_ ((Lisp_Object
));
559 static int face_fontset
P_ ((Lisp_Object
*));
560 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int));
561 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*, Lisp_Object
));
562 static void merge_face_inheritance
P_ ((struct frame
*f
, Lisp_Object
,
563 Lisp_Object
*, Lisp_Object
));
564 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
566 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
567 Lisp_Object
, int, int));
568 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
569 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
570 static void free_realized_faces
P_ ((struct face_cache
*));
571 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
572 struct font_name
*, int, int));
573 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
574 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
575 static int xlfd_numeric_slant
P_ ((struct font_name
*));
576 static int xlfd_numeric_weight
P_ ((struct font_name
*));
577 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
578 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
579 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
580 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
581 static int xlfd_fixed_p
P_ ((struct font_name
*));
582 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
584 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
585 struct font_name
*, int,
587 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
588 struct font_name
*, int));
590 #ifdef HAVE_WINDOW_SYSTEM
592 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
593 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
594 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
595 int (*cmpfn
) P_ ((const void *, const void *))));
596 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
597 static void x_free_gc
P_ ((struct frame
*, GC
));
598 static void clear_font_table
P_ ((struct frame
*));
601 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
602 #endif /* WINDOWSNT */
604 #endif /* HAVE_WINDOW_SYSTEM */
607 /***********************************************************************
609 ***********************************************************************/
611 #ifdef HAVE_X_WINDOWS
613 #ifdef DEBUG_X_COLORS
615 /* The following is a poor mans infrastructure for debugging X color
616 allocation problems on displays with PseudoColor-8. Some X servers
617 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
618 color reference counts completely so that they don't signal an
619 error when a color is freed whose reference count is already 0.
620 Other X servers do. To help me debug this, the following code
621 implements a simple reference counting schema of its own, for a
622 single display/screen. --gerd. */
624 /* Reference counts for pixel colors. */
626 int color_count
[256];
628 /* Register color PIXEL as allocated. */
631 register_color (pixel
)
634 xassert (pixel
< 256);
635 ++color_count
[pixel
];
639 /* Register color PIXEL as deallocated. */
642 unregister_color (pixel
)
645 xassert (pixel
< 256);
646 if (color_count
[pixel
] > 0)
647 --color_count
[pixel
];
653 /* Register N colors from PIXELS as deallocated. */
656 unregister_colors (pixels
, n
)
657 unsigned long *pixels
;
661 for (i
= 0; i
< n
; ++i
)
662 unregister_color (pixels
[i
]);
666 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
667 "Dump currently allocated colors and their reference counts to stderr.")
672 fputc ('\n', stderr
);
674 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
677 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
680 fputc ('\n', stderr
);
682 fputc ('\t', stderr
);
686 fputc ('\n', stderr
);
690 #endif /* DEBUG_X_COLORS */
693 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
694 color values. Interrupt input must be blocked when this function
698 x_free_colors (f
, pixels
, npixels
)
700 unsigned long *pixels
;
703 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
705 /* If display has an immutable color map, freeing colors is not
706 necessary and some servers don't allow it. So don't do it. */
707 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
709 #ifdef DEBUG_X_COLORS
710 unregister_colors (pixels
, npixels
);
712 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
718 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
719 color values. Interrupt input must be blocked when this function
723 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
727 unsigned long *pixels
;
730 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
731 int class = dpyinfo
->visual
->class;
733 /* If display has an immutable color map, freeing colors is not
734 necessary and some servers don't allow it. So don't do it. */
735 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
737 #ifdef DEBUG_X_COLORS
738 unregister_colors (pixels
, npixels
);
740 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
745 /* Create and return a GC for use on frame F. GC values and mask
746 are given by XGCV and MASK. */
749 x_create_gc (f
, mask
, xgcv
)
756 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
763 /* Free GC which was used on frame F. */
771 xassert (--ngcs
>= 0);
772 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
776 #endif /* HAVE_X_WINDOWS */
779 /* W32 emulation of GCs */
782 x_create_gc (f
, mask
, xgcv
)
789 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
796 /* Free GC which was used on frame F. */
804 xassert (--ngcs
>= 0);
809 #endif /* WINDOWSNT */
811 /* Like stricmp. Used to compare parts of font names which are in
816 unsigned char *s1
, *s2
;
820 unsigned char c1
= tolower (*s1
);
821 unsigned char c2
= tolower (*s2
);
823 return c1
< c2
? -1 : 1;
828 return *s2
== 0 ? 0 : -1;
833 /* Like strlwr, which might not always be available. */
835 static unsigned char *
839 unsigned char *p
= s
;
848 /* Signal `error' with message S, and additional argument ARG. */
851 signal_error (s
, arg
)
855 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
859 /* If FRAME is nil, return a pointer to the selected frame.
860 Otherwise, check that FRAME is a live frame, and return a pointer
861 to it. NPARAM is the parameter number of FRAME, for
862 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
863 Lisp function definitions. */
865 static INLINE
struct frame
*
866 frame_or_selected_frame (frame
, nparam
)
871 frame
= selected_frame
;
873 CHECK_LIVE_FRAME (frame
, nparam
);
874 return XFRAME (frame
);
878 /***********************************************************************
880 ***********************************************************************/
882 /* Initialize face cache and basic faces for frame F. */
888 /* Make a face cache, if F doesn't have one. */
889 if (FRAME_FACE_CACHE (f
) == NULL
)
890 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
892 #ifdef HAVE_WINDOW_SYSTEM
893 /* Make the image cache. */
894 if (FRAME_WINDOW_P (f
))
896 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
897 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
898 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
900 #endif /* HAVE_WINDOW_SYSTEM */
902 /* Realize basic faces. Must have enough information in frame
903 parameters to realize basic faces at this point. */
904 #ifdef HAVE_X_WINDOWS
905 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
908 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
910 if (!realize_basic_faces (f
))
915 /* Free face cache of frame F. Called from Fdelete_frame. */
921 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
925 free_face_cache (face_cache
);
926 FRAME_FACE_CACHE (f
) = NULL
;
929 #ifdef HAVE_WINDOW_SYSTEM
930 if (FRAME_WINDOW_P (f
))
932 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
935 --image_cache
->refcount
;
936 if (image_cache
->refcount
== 0)
937 free_image_cache (f
);
940 #endif /* HAVE_WINDOW_SYSTEM */
944 /* Clear face caches, and recompute basic faces for frame F. Call
945 this after changing frame parameters on which those faces depend,
946 or when realized faces have been freed due to changing attributes
950 recompute_basic_faces (f
)
953 if (FRAME_FACE_CACHE (f
))
955 clear_face_cache (0);
956 if (!realize_basic_faces (f
))
962 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
963 try to free unused fonts, too. */
966 clear_face_cache (clear_fonts_p
)
969 #ifdef HAVE_WINDOW_SYSTEM
970 Lisp_Object tail
, frame
;
974 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
976 /* From time to time see if we can unload some fonts. This also
977 frees all realized faces on all frames. Fonts needed by
978 faces will be loaded again when faces are realized again. */
979 clear_font_table_count
= 0;
981 FOR_EACH_FRAME (tail
, frame
)
984 if (FRAME_WINDOW_P (f
)
985 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
987 free_all_realized_faces (frame
);
988 clear_font_table (f
);
994 /* Clear GCs of realized faces. */
995 FOR_EACH_FRAME (tail
, frame
)
998 if (FRAME_WINDOW_P (f
))
1000 clear_face_gcs (FRAME_FACE_CACHE (f
));
1001 clear_image_cache (f
, 0);
1005 #endif /* HAVE_WINDOW_SYSTEM */
1009 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1010 "Clear face caches on all frames.\n\
1011 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
1013 Lisp_Object thoroughly
;
1015 clear_face_cache (!NILP (thoroughly
));
1016 ++face_change_count
;
1017 ++windows_or_buffers_changed
;
1023 #ifdef HAVE_WINDOW_SYSTEM
1026 /* Remove those fonts from the font table of frame F exept for the
1027 default ASCII font for the frame. Called from clear_face_cache
1028 from time to time. */
1031 clear_font_table (f
)
1034 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1037 xassert (FRAME_WINDOW_P (f
));
1039 /* Free those fonts that are not used by the frame F as the default. */
1040 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1042 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1044 if (!font_info
->name
1045 || font_info
->font
== FRAME_FONT (f
))
1049 if (font_info
->full_name
!= font_info
->name
)
1050 xfree (font_info
->full_name
);
1051 xfree (font_info
->name
);
1053 /* Free the font. */
1055 #ifdef HAVE_X_WINDOWS
1056 XFreeFont (dpyinfo
->display
, font_info
->font
);
1059 w32_unload_font (dpyinfo
, font_info
->font
);
1063 /* Mark font table slot free. */
1064 font_info
->font
= NULL
;
1065 font_info
->name
= font_info
->full_name
= NULL
;
1069 #endif /* HAVE_WINDOW_SYSTEM */
1073 /***********************************************************************
1075 ***********************************************************************/
1077 #ifdef HAVE_WINDOW_SYSTEM
1079 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1080 "Value is non-nil if OBJECT is a valid bitmap specification.\n\
1081 A bitmap specification is either a string, a file name, or a list\n\
1082 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\
1083 HEIGHT is its height, and DATA is a string containing the bits of\n\
1084 the pixmap. Bits are stored row by row, each row occupies\n\
1085 (WIDTH + 7)/8 bytes.")
1091 if (STRINGP (object
))
1092 /* If OBJECT is a string, it's a file name. */
1094 else if (CONSP (object
))
1096 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1097 HEIGHT must be integers > 0, and DATA must be string large
1098 enough to hold a bitmap of the specified size. */
1099 Lisp_Object width
, height
, data
;
1101 height
= width
= data
= Qnil
;
1105 width
= XCAR (object
);
1106 object
= XCDR (object
);
1109 height
= XCAR (object
);
1110 object
= XCDR (object
);
1112 data
= XCAR (object
);
1116 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1118 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1120 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* XINT (height
))
1125 return pixmap_p
? Qt
: Qnil
;
1129 /* Load a bitmap according to NAME (which is either a file name or a
1130 pixmap spec) for use on frame F. Value is the bitmap_id (see
1131 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1132 bitmap cannot be loaded, display a message saying so, and return
1133 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1134 if these pointers are not null. */
1137 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1140 unsigned int *w_ptr
, *h_ptr
;
1148 tem
= Fbitmap_spec_p (name
);
1150 wrong_type_argument (Qbitmap_spec_p
, name
);
1155 /* Decode a bitmap spec into a bitmap. */
1160 w
= XINT (Fcar (name
));
1161 h
= XINT (Fcar (Fcdr (name
)));
1162 bits
= Fcar (Fcdr (Fcdr (name
)));
1164 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
1169 /* It must be a string -- a file name. */
1170 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1176 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1187 ++npixmaps_allocated
;
1190 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1193 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1199 #endif /* HAVE_WINDOW_SYSTEM */
1203 /***********************************************************************
1205 ***********************************************************************/
1207 #ifdef HAVE_WINDOW_SYSTEM
1209 /* Update the line_height of frame F. Return non-zero if line height
1213 frame_update_line_height (f
)
1216 int line_height
, changed_p
;
1218 line_height
= FONT_HEIGHT (FRAME_FONT (f
));
1219 changed_p
= line_height
!= FRAME_LINE_HEIGHT (f
);
1220 FRAME_LINE_HEIGHT (f
) = line_height
;
1224 #endif /* HAVE_WINDOW_SYSTEM */
1227 /***********************************************************************
1229 ***********************************************************************/
1231 #ifdef HAVE_WINDOW_SYSTEM
1233 /* Load font of face FACE which is used on frame F to display
1234 character C. The name of the font to load is determined by lface
1235 and fontset of FACE. */
1238 load_face_font (f
, face
, c
)
1243 struct font_info
*font_info
= NULL
;
1246 face
->font_info_id
= -1;
1249 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
);
1254 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1259 face
->font_info_id
= font_info
->font_idx
;
1260 face
->font
= font_info
->font
;
1261 face
->font_name
= font_info
->full_name
;
1264 x_free_gc (f
, face
->gc
);
1269 add_to_log ("Unable to load font %s",
1270 build_string (font_name
), Qnil
);
1274 #endif /* HAVE_WINDOW_SYSTEM */
1278 /***********************************************************************
1280 ***********************************************************************/
1282 /* A version of defined_color for non-X frames. */
1285 tty_defined_color (f
, color_name
, color_def
, alloc
)
1291 Lisp_Object color_desc
;
1292 unsigned long color_idx
= FACE_TTY_DEFAULT_COLOR
;
1293 unsigned long red
= 0, green
= 0, blue
= 0;
1296 if (*color_name
&& !NILP (Ffboundp (Qtty_color_desc
)))
1300 XSETFRAME (frame
, f
);
1302 color_desc
= call2 (Qtty_color_desc
, build_string (color_name
), frame
);
1303 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1305 color_idx
= XINT (XCAR (XCDR (color_desc
)));
1306 if (CONSP (XCDR (XCDR (color_desc
))))
1308 red
= XINT (XCAR (XCDR (XCDR (color_desc
))));
1309 green
= XINT (XCAR (XCDR (XCDR (XCDR (color_desc
)))));
1310 blue
= XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc
))))));
1314 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1315 /* We were called early during startup, and the colors are not
1316 yet set up in tty-defined-color-alist. Don't return a failure
1317 indication, since this produces the annoying "Unable to
1318 load color" messages in the *Messages* buffer. */
1321 if (color_idx
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1323 if (strcmp (color_name
, "unspecified-fg") == 0)
1324 color_idx
= FACE_TTY_DEFAULT_FG_COLOR
;
1325 else if (strcmp (color_name
, "unspecified-bg") == 0)
1326 color_idx
= FACE_TTY_DEFAULT_BG_COLOR
;
1329 if (color_idx
!= FACE_TTY_DEFAULT_COLOR
)
1332 color_def
->pixel
= color_idx
;
1333 color_def
->red
= red
;
1334 color_def
->green
= green
;
1335 color_def
->blue
= blue
;
1341 /* Decide if color named COLOR_NAME is valid for the display
1342 associated with the frame F; if so, return the rgb values in
1343 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1345 This does the right thing for any type of frame. */
1348 defined_color (f
, color_name
, color_def
, alloc
)
1354 if (!FRAME_WINDOW_P (f
))
1355 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1356 #ifdef HAVE_X_WINDOWS
1357 else if (FRAME_X_P (f
))
1358 return x_defined_color (f
, color_name
, color_def
, alloc
);
1361 else if (FRAME_W32_P (f
))
1362 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1365 else if (FRAME_MAC_P (f
))
1366 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1373 /* Given the index IDX of a tty color on frame F, return its name, a
1377 tty_color_name (f
, idx
)
1381 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1384 Lisp_Object coldesc
;
1386 XSETFRAME (frame
, f
);
1387 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1389 if (!NILP (coldesc
))
1390 return XCAR (coldesc
);
1393 /* We can have an MSDOG frame under -nw for a short window of
1394 opportunity before internal_terminal_init is called. DTRT. */
1395 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1396 return msdos_stdcolor_name (idx
);
1399 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1400 return build_string (unspecified_fg
);
1401 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1402 return build_string (unspecified_bg
);
1405 return vga_stdcolor_name (idx
);
1408 return Qunspecified
;
1412 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1413 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1416 face_color_gray_p (f
, color_name
)
1423 if (defined_color (f
, color_name
, &color
, 0))
1424 gray_p
= ((abs (color
.red
- color
.green
)
1425 < max (color
.red
, color
.green
) / 20)
1426 && (abs (color
.green
- color
.blue
)
1427 < max (color
.green
, color
.blue
) / 20)
1428 && (abs (color
.blue
- color
.red
)
1429 < max (color
.blue
, color
.red
) / 20));
1437 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1438 BACKGROUND_P non-zero means the color will be used as background
1442 face_color_supported_p (f
, color_name
, background_p
)
1450 XSETFRAME (frame
, f
);
1451 return (FRAME_WINDOW_P (f
)
1452 ? (!NILP (Fxw_display_color_p (frame
))
1453 || xstricmp (color_name
, "black") == 0
1454 || xstricmp (color_name
, "white") == 0
1456 && face_color_gray_p (f
, color_name
))
1457 || (!NILP (Fx_display_grayscale_p (frame
))
1458 && face_color_gray_p (f
, color_name
)))
1459 : tty_defined_color (f
, color_name
, ¬_used
, 0));
1463 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1464 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1465 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1466 If FRAME is nil or omitted, use the selected frame.")
1468 Lisp_Object color
, frame
;
1472 CHECK_FRAME (frame
, 0);
1473 CHECK_STRING (color
, 0);
1475 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1479 DEFUN ("color-supported-p", Fcolor_supported_p
,
1480 Scolor_supported_p
, 2, 3, 0,
1481 "Return non-nil if COLOR can be displayed on FRAME.\n\
1482 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1483 If FRAME is nil or omitted, use the selected frame.\n\
1484 COLOR must be a valid color name.")
1485 (color
, frame
, background_p
)
1486 Lisp_Object frame
, color
, background_p
;
1490 CHECK_FRAME (frame
, 0);
1491 CHECK_STRING (color
, 0);
1493 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1499 /* Load color with name NAME for use by face FACE on frame F.
1500 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1501 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1502 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1503 pixel color. If color cannot be loaded, display a message, and
1504 return the foreground, background or underline color of F, but
1505 record that fact in flags of the face so that we don't try to free
1509 load_color (f
, face
, name
, target_index
)
1513 enum lface_attribute_index target_index
;
1517 xassert (STRINGP (name
));
1518 xassert (target_index
== LFACE_FOREGROUND_INDEX
1519 || target_index
== LFACE_BACKGROUND_INDEX
1520 || target_index
== LFACE_UNDERLINE_INDEX
1521 || target_index
== LFACE_OVERLINE_INDEX
1522 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1523 || target_index
== LFACE_BOX_INDEX
);
1525 /* if the color map is full, defined_color will return a best match
1526 to the values in an existing cell. */
1527 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1529 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1531 switch (target_index
)
1533 case LFACE_FOREGROUND_INDEX
:
1534 face
->foreground_defaulted_p
= 1;
1535 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1538 case LFACE_BACKGROUND_INDEX
:
1539 face
->background_defaulted_p
= 1;
1540 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1543 case LFACE_UNDERLINE_INDEX
:
1544 face
->underline_defaulted_p
= 1;
1545 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1548 case LFACE_OVERLINE_INDEX
:
1549 face
->overline_color_defaulted_p
= 1;
1550 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1553 case LFACE_STRIKE_THROUGH_INDEX
:
1554 face
->strike_through_color_defaulted_p
= 1;
1555 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1558 case LFACE_BOX_INDEX
:
1559 face
->box_color_defaulted_p
= 1;
1560 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1569 ++ncolors_allocated
;
1576 #ifdef HAVE_WINDOW_SYSTEM
1578 /* Load colors for face FACE which is used on frame F. Colors are
1579 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1580 of ATTRS. If the background color specified is not supported on F,
1581 try to emulate gray colors with a stipple from Vface_default_stipple. */
1584 load_face_colors (f
, face
, attrs
)
1591 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1592 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1594 /* Swap colors if face is inverse-video. */
1595 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1603 /* Check for support for foreground, not for background because
1604 face_color_supported_p is smart enough to know that grays are
1605 "supported" as background because we are supposed to use stipple
1607 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1608 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1610 x_destroy_bitmap (f
, face
->stipple
);
1611 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1612 &face
->pixmap_w
, &face
->pixmap_h
);
1615 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1616 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1620 /* Free color PIXEL on frame F. */
1623 unload_color (f
, pixel
)
1625 unsigned long pixel
;
1627 #ifdef HAVE_X_WINDOWS
1629 x_free_colors (f
, &pixel
, 1);
1635 /* Free colors allocated for FACE. */
1638 free_face_colors (f
, face
)
1642 #ifdef HAVE_X_WINDOWS
1645 if (!face
->foreground_defaulted_p
)
1647 x_free_colors (f
, &face
->foreground
, 1);
1648 IF_DEBUG (--ncolors_allocated
);
1651 if (!face
->background_defaulted_p
)
1653 x_free_colors (f
, &face
->background
, 1);
1654 IF_DEBUG (--ncolors_allocated
);
1657 if (face
->underline_p
1658 && !face
->underline_defaulted_p
)
1660 x_free_colors (f
, &face
->underline_color
, 1);
1661 IF_DEBUG (--ncolors_allocated
);
1664 if (face
->overline_p
1665 && !face
->overline_color_defaulted_p
)
1667 x_free_colors (f
, &face
->overline_color
, 1);
1668 IF_DEBUG (--ncolors_allocated
);
1671 if (face
->strike_through_p
1672 && !face
->strike_through_color_defaulted_p
)
1674 x_free_colors (f
, &face
->strike_through_color
, 1);
1675 IF_DEBUG (--ncolors_allocated
);
1678 if (face
->box
!= FACE_NO_BOX
1679 && !face
->box_color_defaulted_p
)
1681 x_free_colors (f
, &face
->box_color
, 1);
1682 IF_DEBUG (--ncolors_allocated
);
1686 #endif /* HAVE_X_WINDOWS */
1689 #endif /* HAVE_WINDOW_SYSTEM */
1693 /***********************************************************************
1695 ***********************************************************************/
1697 /* An enumerator for each field of an XLFD font name. */
1718 /* An enumerator for each possible slant value of a font. Taken from
1719 the XLFD specification. */
1727 XLFD_SLANT_REVERSE_ITALIC
,
1728 XLFD_SLANT_REVERSE_OBLIQUE
,
1732 /* Relative font weight according to XLFD documentation. */
1736 XLFD_WEIGHT_UNKNOWN
,
1737 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1738 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1739 XLFD_WEIGHT_LIGHT
, /* 30 */
1740 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1741 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1742 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1743 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1744 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1745 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1748 /* Relative proportionate width. */
1752 XLFD_SWIDTH_UNKNOWN
,
1753 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1754 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1755 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1756 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1757 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1758 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1759 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1760 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1761 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1764 /* Structure used for tables mapping XLFD weight, slant, and width
1765 names to numeric and symbolic values. */
1771 Lisp_Object
*symbol
;
1774 /* Table of XLFD slant names and their numeric and symbolic
1775 representations. This table must be sorted by slant names in
1778 static struct table_entry slant_table
[] =
1780 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1781 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1782 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1783 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1784 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1785 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1788 /* Table of XLFD weight names. This table must be sorted by weight
1789 names in ascending order. */
1791 static struct table_entry weight_table
[] =
1793 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1794 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1795 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1796 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1797 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1798 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1799 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1800 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1801 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1802 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1803 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1804 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1805 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1806 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1807 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1808 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1811 /* Table of XLFD width names. This table must be sorted by width
1812 names in ascending order. */
1814 static struct table_entry swidth_table
[] =
1816 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1817 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1818 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1819 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1820 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1821 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1822 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1823 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1824 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1825 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1826 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1827 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1828 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1829 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1830 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1833 /* Structure used to hold the result of splitting font names in XLFD
1834 format into their fields. */
1838 /* The original name which is modified destructively by
1839 split_font_name. The pointer is kept here to be able to free it
1840 if it was allocated from the heap. */
1843 /* Font name fields. Each vector element points into `name' above.
1844 Fields are NUL-terminated. */
1845 char *fields
[XLFD_LAST
];
1847 /* Numeric values for those fields that interest us. See
1848 split_font_name for which these are. */
1849 int numeric
[XLFD_LAST
];
1851 /* Lower value mean higher priority. */
1852 int registry_priority
;
1855 /* The frame in effect when sorting font names. Set temporarily in
1856 sort_fonts so that it is available in font comparison functions. */
1858 static struct frame
*font_frame
;
1860 /* Order by which font selection chooses fonts. The default values
1861 mean `first, find a best match for the font width, then for the
1862 font height, then for weight, then for slant.' This variable can be
1863 set via set-face-font-sort-order. */
1866 static int font_sort_order
[4] = {
1867 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1870 static int font_sort_order
[4];
1873 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1874 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1875 is a pointer to the matching table entry or null if no table entry
1878 static struct table_entry
*
1879 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1880 struct table_entry
*table
;
1882 struct font_name
*font
;
1885 /* Function split_font_name converts fields to lower-case, so there
1886 is no need to use xstrlwr or xstricmp here. */
1887 char *s
= font
->fields
[field_index
];
1888 int low
, mid
, high
, cmp
;
1895 mid
= (low
+ high
) / 2;
1896 cmp
= strcmp (table
[mid
].name
, s
);
1910 /* Return a numeric representation for font name field
1911 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1912 has DIM entries. Value is the numeric value found or DFLT if no
1913 table entry matches. This function is used to translate weight,
1914 slant, and swidth names of XLFD font names to numeric values. */
1917 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1918 struct table_entry
*table
;
1920 struct font_name
*font
;
1924 struct table_entry
*p
;
1925 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1926 return p
? p
->numeric
: dflt
;
1930 /* Return a symbolic representation for font name field
1931 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1932 has DIM entries. Value is the symbolic value found or DFLT if no
1933 table entry matches. This function is used to translate weight,
1934 slant, and swidth names of XLFD font names to symbols. */
1936 static INLINE Lisp_Object
1937 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1938 struct table_entry
*table
;
1940 struct font_name
*font
;
1944 struct table_entry
*p
;
1945 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1946 return p
? *p
->symbol
: dflt
;
1950 /* Return a numeric value for the slant of the font given by FONT. */
1953 xlfd_numeric_slant (font
)
1954 struct font_name
*font
;
1956 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1957 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1961 /* Return a symbol representing the weight of the font given by FONT. */
1963 static INLINE Lisp_Object
1964 xlfd_symbolic_slant (font
)
1965 struct font_name
*font
;
1967 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1968 font
, XLFD_SLANT
, Qnormal
);
1972 /* Return a numeric value for the weight of the font given by FONT. */
1975 xlfd_numeric_weight (font
)
1976 struct font_name
*font
;
1978 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1979 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1983 /* Return a symbol representing the slant of the font given by FONT. */
1985 static INLINE Lisp_Object
1986 xlfd_symbolic_weight (font
)
1987 struct font_name
*font
;
1989 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1990 font
, XLFD_WEIGHT
, Qnormal
);
1994 /* Return a numeric value for the swidth of the font whose XLFD font
1995 name fields are found in FONT. */
1998 xlfd_numeric_swidth (font
)
1999 struct font_name
*font
;
2001 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2002 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2006 /* Return a symbolic value for the swidth of FONT. */
2008 static INLINE Lisp_Object
2009 xlfd_symbolic_swidth (font
)
2010 struct font_name
*font
;
2012 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2013 font
, XLFD_SWIDTH
, Qnormal
);
2017 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2018 entries. Value is a pointer to the matching table entry or null if
2019 no element of TABLE contains SYMBOL. */
2021 static struct table_entry
*
2022 face_value (table
, dim
, symbol
)
2023 struct table_entry
*table
;
2029 xassert (SYMBOLP (symbol
));
2031 for (i
= 0; i
< dim
; ++i
)
2032 if (EQ (*table
[i
].symbol
, symbol
))
2035 return i
< dim
? table
+ i
: NULL
;
2039 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2040 entries. Value is -1 if SYMBOL is not found in TABLE. */
2043 face_numeric_value (table
, dim
, symbol
)
2044 struct table_entry
*table
;
2048 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2049 return p
? p
->numeric
: -1;
2053 /* Return a numeric value representing the weight specified by Lisp
2054 symbol WEIGHT. Value is one of the enumerators of enum
2058 face_numeric_weight (weight
)
2061 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2065 /* Return a numeric value representing the slant specified by Lisp
2066 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2069 face_numeric_slant (slant
)
2072 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2076 /* Return a numeric value representing the swidth specified by Lisp
2077 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2080 face_numeric_swidth (width
)
2083 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2087 #ifdef HAVE_WINDOW_SYSTEM
2089 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2093 struct font_name
*font
;
2095 /* Function split_font_name converts fields to lower-case, so there
2096 is no need to use tolower here. */
2097 return *font
->fields
[XLFD_SPACING
] != 'p';
2101 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2103 The actual height of the font when displayed on F depends on the
2104 resolution of both the font and frame. For example, a 10pt font
2105 designed for a 100dpi display will display larger than 10pt on a
2106 75dpi display. (It's not unusual to use fonts not designed for the
2107 display one is using. For example, some intlfonts are available in
2108 72dpi versions, only.)
2110 Value is the real point size of FONT on frame F, or 0 if it cannot
2114 xlfd_point_size (f
, font
)
2116 struct font_name
*font
;
2118 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2119 double font_pixel
= atoi (font
->fields
[XLFD_PIXEL_SIZE
]);
2122 if (font_pixel
== 0)
2125 real_pt
= PT_PER_INCH
* 10.0 * font_pixel
/ resy
+ 0.5;
2131 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2132 of frame F. This function is used to guess a point size of font
2133 when only the pixel height of the font is available. */
2136 pixel_point_size (f
, pixel
)
2140 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2144 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2145 point size of one dot. */
2146 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2147 int_pt
= real_pt
+ 0.5;
2153 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2154 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2155 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2156 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2157 zero if the font name doesn't have the format we expect. The
2158 expected format is a font name that starts with a `-' and has
2159 XLFD_LAST fields separated by `-'. (The XLFD specification allows
2160 forms of font names where certain field contents are enclosed in
2161 square brackets. We don't support that, for now. */
2164 split_font_name (f
, font
, numeric_p
)
2166 struct font_name
*font
;
2172 if (*font
->name
== '-')
2174 char *p
= xstrlwr (font
->name
) + 1;
2176 while (i
< XLFD_LAST
)
2178 font
->fields
[i
] = p
;
2181 while (*p
&& *p
!= '-')
2191 success_p
= i
== XLFD_LAST
;
2193 /* If requested, and font name was in the expected format,
2194 compute numeric values for some fields. */
2195 if (numeric_p
&& success_p
)
2197 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2198 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2199 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2200 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2201 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2202 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2205 /* Initialize it to zero. It will be overridden by font_list while
2206 trying alternate registries. */
2207 font
->registry_priority
= 0;
2213 /* Build an XLFD font name from font name fields in FONT. Value is a
2214 pointer to the font name, which is allocated via xmalloc. */
2217 build_font_name (font
)
2218 struct font_name
*font
;
2222 char *font_name
= (char *) xmalloc (size
);
2223 int total_length
= 0;
2225 for (i
= 0; i
< XLFD_LAST
; ++i
)
2227 /* Add 1 because of the leading `-'. */
2228 int len
= strlen (font
->fields
[i
]) + 1;
2230 /* Reallocate font_name if necessary. Add 1 for the final
2232 if (total_length
+ len
+ 1 >= size
)
2234 int new_size
= max (2 * size
, size
+ len
+ 1);
2235 int sz
= new_size
* sizeof *font_name
;
2236 font_name
= (char *) xrealloc (font_name
, sz
);
2240 font_name
[total_length
] = '-';
2241 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2242 total_length
+= len
;
2245 font_name
[total_length
] = 0;
2250 /* Free an array FONTS of N font_name structures. This frees FONTS
2251 itself and all `name' fields in its elements. */
2254 free_font_names (fonts
, n
)
2255 struct font_name
*fonts
;
2259 xfree (fonts
[--n
].name
);
2264 /* Sort vector FONTS of font_name structures which contains NFONTS
2265 elements using qsort and comparison function CMPFN. F is the frame
2266 on which the fonts will be used. The global variable font_frame
2267 is temporarily set to F to make it available in CMPFN. */
2270 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2272 struct font_name
*fonts
;
2274 int (*cmpfn
) P_ ((const void *, const void *));
2277 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2282 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2283 display in x_display_list. FONTS is a pointer to a vector of
2284 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2285 alternative patterns from Valternate_fontname_alist if no fonts are
2286 found matching PATTERN. SCALABLE_FONTS_P non-zero means include
2289 For all fonts found, set FONTS[i].name to the name of the font,
2290 allocated via xmalloc, and split font names into fields. Ignore
2291 fonts that we can't parse. Value is the number of fonts found. */
2294 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
,
2298 struct font_name
*fonts
;
2299 int nfonts
, try_alternatives_p
;
2300 int scalable_fonts_p
;
2304 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2305 better to do it the other way around. */
2307 Lisp_Object lpattern
, tem
;
2309 lpattern
= build_string (pattern
);
2311 /* Get the list of fonts matching PATTERN. */
2314 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2317 lfonts
= x_list_fonts (f
, lpattern
, scalable_fonts_p
? -1 : 0, nfonts
);
2320 /* Make a copy of the font names we got from X, and
2321 split them into fields. */
2323 for (tem
= lfonts
; CONSP (tem
); tem
= XCDR (tem
))
2325 Lisp_Object elt
, tail
;
2326 char *name
= XSTRING (XCAR (tem
))->data
;
2328 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2332 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2338 /* Make a copy of the font name. */
2339 fonts
[n
].name
= xstrdup (name
);
2341 /* Ignore fonts having a name that we can't parse. */
2342 if (!split_font_name (f
, fonts
+ n
, 1))
2343 xfree (fonts
[n
].name
);
2344 else if (font_scalable_p (fonts
+ n
))
2346 if (!scalable_fonts_p
2347 || !may_use_scalable_font_p (fonts
+ n
, name
))
2348 xfree (fonts
[n
].name
);
2356 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2357 if (n
== 0 && try_alternatives_p
)
2359 Lisp_Object list
= Valternate_fontname_alist
;
2361 while (CONSP (list
))
2363 Lisp_Object entry
= XCAR (list
);
2365 && STRINGP (XCAR (entry
))
2366 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2373 Lisp_Object patterns
= XCAR (list
);
2376 while (CONSP (patterns
)
2377 /* If list is screwed up, give up. */
2378 && (name
= XCAR (patterns
),
2380 /* Ignore patterns equal to PATTERN because we tried that
2381 already with no success. */
2382 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2383 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2387 patterns
= XCDR (patterns
);
2395 /* Determine the first font matching PATTERN on frame F. Return in
2396 *FONT the matching font name, split into fields. Value is non-zero
2397 if a match was found. */
2400 first_font_matching (f
, pattern
, font
)
2403 struct font_name
*font
;
2406 struct font_name
*fonts
;
2408 fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof *fonts
);
2409 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1, 0);
2413 bcopy (&fonts
[0], font
, sizeof *font
);
2415 fonts
[0].name
= NULL
;
2416 free_font_names (fonts
, nfonts
);
2423 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2424 using comparison function CMPFN. Value is the number of fonts
2425 found. If value is non-zero, *FONTS is set to a vector of
2426 font_name structures allocated from the heap containing matching
2427 fonts. Each element of *FONTS contains a name member that is also
2428 allocated from the heap. Font names in these structures are split
2429 into fields. Use free_font_names to free such an array. */
2432 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2435 int (*cmpfn
) P_ ((const void *, const void *));
2436 struct font_name
**fonts
;
2440 /* Get the list of fonts matching pattern. 100 should suffice. */
2441 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2442 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2443 nfonts
= XFASTINT (Vfont_list_limit
);
2445 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2446 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 1);
2448 /* Sort the resulting array and return it in *FONTS. If no
2449 fonts were found, make sure to set *FONTS to null. */
2451 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2462 /* Compare two font_name structures *A and *B. Value is analogous to
2463 strcmp. Sort order is given by the global variable
2464 font_sort_order. Font names are sorted so that, everything else
2465 being equal, fonts with a resolution closer to that of the frame on
2466 which they are used are listed first. The global variable
2467 font_frame is the frame on which we operate. */
2470 cmp_font_names (a
, b
)
2473 struct font_name
*x
= (struct font_name
*) a
;
2474 struct font_name
*y
= (struct font_name
*) b
;
2477 /* All strings have been converted to lower-case by split_font_name,
2478 so we can use strcmp here. */
2479 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2484 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2486 int j
= font_sort_order
[i
];
2487 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2492 /* Everything else being equal, we prefer fonts with an
2493 y-resolution closer to that of the frame. */
2494 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2495 int x_resy
= x
->numeric
[XLFD_RESY
];
2496 int y_resy
= y
->numeric
[XLFD_RESY
];
2497 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2505 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2506 is non-nil list fonts matching that pattern. Otherwise, if
2507 REGISTRY is non-nil return only fonts with that registry, otherwise
2508 return fonts of any registry. Set *FONTS to a vector of font_name
2509 structures allocated from the heap containing the fonts found.
2510 Value is the number of fonts found. */
2513 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2515 Lisp_Object pattern
, family
, registry
;
2516 struct font_name
**fonts
;
2518 char *pattern_str
, *family_str
, *registry_str
;
2522 family_str
= (NILP (family
) ? "*" : (char *) XSTRING (family
)->data
);
2523 registry_str
= (NILP (registry
) ? "*" : (char *) XSTRING (registry
)->data
);
2525 pattern_str
= (char *) alloca (strlen (family_str
)
2526 + strlen (registry_str
)
2528 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2529 strcat (pattern_str
, family_str
);
2530 strcat (pattern_str
, "-*-");
2531 strcat (pattern_str
, registry_str
);
2532 if (!index (registry_str
, '-'))
2534 if (registry_str
[strlen (registry_str
) - 1] == '*')
2535 strcat (pattern_str
, "-*");
2537 strcat (pattern_str
, "*-*");
2541 pattern_str
= (char *) XSTRING (pattern
)->data
;
2543 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2547 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2548 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2549 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2552 static struct font_name
*
2553 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2554 struct font_name
*fonts1
, *fonts2
;
2555 int nfonts1
, nfonts2
;
2557 int new_nfonts
= nfonts1
+ nfonts2
;
2558 struct font_name
*new_fonts
;
2560 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2561 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2562 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2569 /* Get a sorted list of fonts of family FAMILY on frame F.
2571 If PATTERN is non-nil list fonts matching that pattern.
2573 If REGISTRY is non-nil, return fonts with that registry and the
2574 alternative registries from Vface_alternative_font_registry_alist.
2576 If REGISTRY is nil return fonts of any registry.
2578 Set *FONTS to a vector of font_name structures allocated from the
2579 heap containing the fonts found. Value is the number of fonts
2583 font_list (f
, pattern
, family
, registry
, fonts
)
2585 Lisp_Object pattern
, family
, registry
;
2586 struct font_name
**fonts
;
2588 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2590 if (!NILP (registry
)
2591 && CONSP (Vface_alternative_font_registry_alist
))
2595 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2600 for (alter
= XCDR (alter
), reg_prio
= 1;
2602 alter
= XCDR (alter
), reg_prio
++)
2603 if (STRINGP (XCAR (alter
)))
2606 struct font_name
*fonts2
;
2608 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2610 for (i
= 0; i
< nfonts2
; i
++)
2611 fonts2
[i
].registry_priority
= reg_prio
;
2612 *fonts
= (nfonts
> 0
2613 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2624 /* Remove elements from LIST whose cars are `equal'. Called from
2625 x-family-fonts and x-font-family-list to remove duplicate font
2629 remove_duplicates (list
)
2632 Lisp_Object tail
= list
;
2634 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2636 Lisp_Object next
= XCDR (tail
);
2637 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2638 XCDR (tail
) = XCDR (next
);
2645 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2646 "Return a list of available fonts of family FAMILY on FRAME.\n\
2647 If FAMILY is omitted or nil, list all families.\n\
2648 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2650 If FRAME is omitted or nil, use the selected frame.\n\
2651 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2652 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2653 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2654 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2655 width, weight and slant of the font. These symbols are the same as for\n\
2656 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2657 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2658 giving the registry and encoding of the font.\n\
2659 The result list is sorted according to the current setting of\n\
2660 the face font sort order.")
2662 Lisp_Object family
, frame
;
2664 struct frame
*f
= check_x_frame (frame
);
2665 struct font_name
*fonts
;
2668 struct gcpro gcpro1
;
2671 CHECK_STRING (family
, 1);
2675 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2676 for (i
= nfonts
- 1; i
>= 0; --i
)
2678 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2681 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2682 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2683 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2684 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2685 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2686 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2687 tem
= build_font_name (fonts
+ i
);
2688 ASET (v
, 6, build_string (tem
));
2689 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2690 fonts
[i
].fields
[XLFD_ENCODING
]);
2691 ASET (v
, 7, build_string (tem
));
2694 result
= Fcons (v
, result
);
2697 remove_duplicates (result
);
2698 free_font_names (fonts
, nfonts
);
2704 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2706 "Return a list of available font families on FRAME.\n\
2707 If FRAME is omitted or nil, use the selected frame.\n\
2708 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2709 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2714 struct frame
*f
= check_x_frame (frame
);
2716 struct font_name
*fonts
;
2718 struct gcpro gcpro1
;
2719 int count
= specpdl_ptr
- specpdl
;
2722 /* Let's consider all fonts. Increase the limit for matching
2723 fonts until we have them all. */
2726 specbind (intern ("font-list-limit"), make_number (limit
));
2727 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2729 if (nfonts
== limit
)
2731 free_font_names (fonts
, nfonts
);
2740 for (i
= nfonts
- 1; i
>= 0; --i
)
2741 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2742 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2745 remove_duplicates (result
);
2746 free_font_names (fonts
, nfonts
);
2748 return unbind_to (count
, result
);
2752 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2753 "Return a list of the names of available fonts matching PATTERN.\n\
2754 If optional arguments FACE and FRAME are specified, return only fonts\n\
2755 the same size as FACE on FRAME.\n\
2756 PATTERN is a string, perhaps with wildcard characters;\n\
2757 the * character matches any substring, and\n\
2758 the ? character matches any single character.\n\
2759 PATTERN is case-insensitive.\n\
2760 FACE is a face name--a symbol.\n\
2762 The return value is a list of strings, suitable as arguments to\n\
2765 Fonts Emacs can't use may or may not be excluded\n\
2766 even if they match PATTERN and FACE.\n\
2767 The optional fourth argument MAXIMUM sets a limit on how many\n\
2768 fonts to match. The first MAXIMUM fonts are reported.\n\
2769 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2770 occupied by a character of a font. In that case, return only fonts\n\
2771 the WIDTH times as wide as FACE on FRAME.")
2772 (pattern
, face
, frame
, maximum
, width
)
2773 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2780 CHECK_STRING (pattern
, 0);
2786 CHECK_NATNUM (maximum
, 0);
2787 maxnames
= XINT (maximum
);
2791 CHECK_NUMBER (width
, 4);
2793 /* We can't simply call check_x_frame because this function may be
2794 called before any frame is created. */
2795 f
= frame_or_selected_frame (frame
, 2);
2796 if (!FRAME_WINDOW_P (f
))
2798 /* Perhaps we have not yet created any frame. */
2803 /* Determine the width standard for comparison with the fonts we find. */
2809 /* This is of limited utility since it works with character
2810 widths. Keep it for compatibility. --gerd. */
2811 int face_id
= lookup_named_face (f
, face
, 0);
2812 struct face
*face
= (face_id
< 0
2814 : FACE_FROM_ID (f
, face_id
));
2816 if (face
&& face
->font
)
2817 size
= FONT_WIDTH (face
->font
);
2819 size
= FONT_WIDTH (FRAME_FONT (f
));
2822 size
*= XINT (width
);
2826 Lisp_Object args
[2];
2828 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2830 /* We don't have to check fontsets. */
2832 args
[1] = list_fontsets (f
, pattern
, size
);
2833 return Fnconc (2, args
);
2837 #endif /* HAVE_WINDOW_SYSTEM */
2841 /***********************************************************************
2843 ***********************************************************************/
2845 /* Access face attributes of face LFACE, a Lisp vector. */
2847 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
2848 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
2849 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
2850 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
2851 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
2852 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
2853 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
2854 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
2855 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
2856 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
2857 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
2858 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
2859 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
2860 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
2861 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
2862 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
2864 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2865 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2867 #define LFACEP(LFACE) \
2869 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2870 && EQ (AREF (LFACE, 0), Qface))
2875 /* Check consistency of Lisp face attribute vector ATTRS. */
2878 check_lface_attrs (attrs
)
2881 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2882 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2883 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2884 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2885 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
2886 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
2887 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2888 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
2889 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
2890 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
2891 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2892 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2893 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2894 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2895 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2896 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2897 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2898 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2899 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2900 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2901 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2902 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2903 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2904 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2905 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2906 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2907 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2908 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2909 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2910 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2911 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2912 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2913 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2914 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2915 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2916 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2917 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2918 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2919 #ifdef HAVE_WINDOW_SYSTEM
2920 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2921 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2922 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2923 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2924 || NILP (attrs
[LFACE_FONT_INDEX
])
2925 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
2930 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2938 xassert (LFACEP (lface
));
2939 check_lface_attrs (XVECTOR (lface
)->contents
);
2943 #else /* GLYPH_DEBUG == 0 */
2945 #define check_lface_attrs(attrs) (void) 0
2946 #define check_lface(lface) (void) 0
2948 #endif /* GLYPH_DEBUG == 0 */
2951 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2952 to make it a symvol. If FACE_NAME is an alias for another face,
2953 return that face's name. */
2956 resolve_face_name (face_name
)
2957 Lisp_Object face_name
;
2959 Lisp_Object aliased
;
2961 if (STRINGP (face_name
))
2962 face_name
= intern (XSTRING (face_name
)->data
);
2964 while (SYMBOLP (face_name
))
2966 aliased
= Fget (face_name
, Qface_alias
);
2970 face_name
= aliased
;
2977 /* Return the face definition of FACE_NAME on frame F. F null means
2978 return the definition for new frames. FACE_NAME may be a string or
2979 a symbol (apparently Emacs 20.2 allowed strings as face names in
2980 face text properties; Ediff uses that). If FACE_NAME is an alias
2981 for another face, return that face's definition. If SIGNAL_P is
2982 non-zero, signal an error if FACE_NAME is not a valid face name.
2983 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2986 static INLINE Lisp_Object
2987 lface_from_face_name (f
, face_name
, signal_p
)
2989 Lisp_Object face_name
;
2994 face_name
= resolve_face_name (face_name
);
2997 lface
= assq_no_quit (face_name
, f
->face_alist
);
2999 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3002 lface
= XCDR (lface
);
3004 signal_error ("Invalid face", face_name
);
3006 check_lface (lface
);
3011 /* Get face attributes of face FACE_NAME from frame-local faces on
3012 frame F. Store the resulting attributes in ATTRS which must point
3013 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3014 is non-zero, signal an error if FACE_NAME does not name a face.
3015 Otherwise, value is zero if FACE_NAME is not a face. */
3018 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3020 Lisp_Object face_name
;
3027 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3030 bcopy (XVECTOR (lface
)->contents
, attrs
,
3031 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3041 /* Non-zero if all attributes in face attribute vector ATTRS are
3042 specified, i.e. are non-nil. */
3045 lface_fully_specified_p (attrs
)
3050 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3051 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3052 && i
!= LFACE_AVGWIDTH_INDEX
)
3053 if (UNSPECIFIEDP (attrs
[i
]))
3056 return i
== LFACE_VECTOR_SIZE
;
3059 #ifdef HAVE_WINDOW_SYSTEM
3061 /* Set font-related attributes of Lisp face LFACE from the fullname of
3062 the font opened by FONTNAME. If FORCE_P is zero, set only
3063 unspecified attributes of LFACE. The exception is `font'
3064 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3066 If FONTNAME is not available on frame F,
3067 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3068 If the fullname is not in a valid XLFD format,
3069 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3070 in LFACE and return 1.
3071 Otherwise, return 1. */
3074 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3077 Lisp_Object fontname
;
3078 int force_p
, may_fail_p
;
3080 struct font_name font
;
3085 char *font_name
= XSTRING (fontname
)->data
;
3086 struct font_info
*font_info
;
3088 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3089 fontset
= fs_query_fontset (fontname
, 0);
3091 font_name
= XSTRING (fontset_ascii (fontset
))->data
;
3093 /* Check if FONT_NAME is surely available on the system. Usually
3094 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3095 returns quickly. But, even if FONT_NAME is not yet cached,
3096 caching it now is not futail because we anyway load the font
3099 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3109 font
.name
= STRDUPA (font_info
->full_name
);
3110 have_xlfd_p
= split_font_name (f
, &font
, 1);
3112 /* Set attributes only if unspecified, otherwise face defaults for
3113 new frames would never take effect. If we couldn't get a font
3114 name conforming to XLFD, set normal values. */
3116 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3121 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3122 + strlen (font
.fields
[XLFD_FOUNDRY
])
3124 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3125 font
.fields
[XLFD_FAMILY
]);
3126 val
= build_string (buffer
);
3129 val
= build_string ("*");
3130 LFACE_FAMILY (lface
) = val
;
3133 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3136 pt
= xlfd_point_size (f
, &font
);
3138 pt
= pixel_point_size (f
, font_info
->height
* 10);
3140 LFACE_HEIGHT (lface
) = make_number (pt
);
3143 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3144 LFACE_SWIDTH (lface
)
3145 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3147 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3148 LFACE_AVGWIDTH (lface
)
3150 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3153 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3154 LFACE_WEIGHT (lface
)
3155 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3157 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3159 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3161 LFACE_FONT (lface
) = fontname
;
3166 #endif /* HAVE_WINDOW_SYSTEM */
3169 /* Merges the face height FROM with the face height TO, and returns the
3170 merged height. If FROM is an invalid height, then INVALID is
3171 returned instead. FROM may be a either an absolute face height or a
3172 `relative' height, and TO must be an absolute height. The returned
3173 value is always an absolute height. GCPRO is a lisp value that will
3174 be protected from garbage-collection if this function makes a call
3178 merge_face_heights (from
, to
, invalid
, gcpro
)
3179 Lisp_Object from
, to
, invalid
, gcpro
;
3183 if (INTEGERP (from
))
3184 result
= XINT (from
);
3185 else if (NUMBERP (from
))
3186 result
= XFLOATINT (from
) * XINT (to
);
3187 #if 0 /* Probably not so useful. */
3188 else if (CONSP (from
) && CONSP (XCDR (from
)))
3190 if (EQ (XCAR(from
), Qplus
) || EQ (XCAR(from
), Qminus
))
3192 if (INTEGERP (XCAR (XCDR (from
))))
3194 int inc
= XINT (XCAR (XCDR (from
)));
3195 if (EQ (XCAR (from
), Qminus
))
3198 result
= XFASTINT (to
);
3199 if (result
+ inc
> 0)
3200 /* Note that `underflows' don't mean FROM is invalid, so
3201 we just pin the result at TO if it would otherwise be
3208 else if (FUNCTIONP (from
))
3210 /* Call function with current height as argument.
3211 From is the new height. */
3212 Lisp_Object args
[2], height
;
3213 struct gcpro gcpro1
;
3219 height
= safe_call (2, args
);
3223 if (NUMBERP (height
))
3224 result
= XFLOATINT (height
);
3228 return make_number (result
);
3234 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3235 store the resulting attributes in TO, which must be already be
3236 completely specified and contain only absolute attributes. Every
3237 specified attribute of FROM overrides the corresponding attribute of
3238 TO; relative attributes in FROM are merged with the absolute value in
3239 TO and replace it. CYCLE_CHECK is used internally to detect loops in
3240 face inheritance; it should be Qnil when called from other places. */
3243 merge_face_vectors (f
, from
, to
, cycle_check
)
3245 Lisp_Object
*from
, *to
;
3246 Lisp_Object cycle_check
;
3250 /* If FROM inherits from some other faces, merge their attributes into
3251 TO before merging FROM's direct attributes. Note that an :inherit
3252 attribute of `unspecified' is the same as one of nil; we never
3253 merge :inherit attributes, so nil is more correct, but lots of
3254 other code uses `unspecified' as a generic value for face attributes. */
3255 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3256 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3257 merge_face_inheritance (f
, from
[LFACE_INHERIT_INDEX
], to
, cycle_check
);
3259 /* If TO specifies a :font attribute, and FROM specifies some
3260 font-related attribute, we need to clear TO's :font attribute
3261 (because it will be inconsistent with whatever FROM specifies, and
3262 FROM takes precedence). */
3263 if (!NILP (to
[LFACE_FONT_INDEX
])
3264 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3265 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3266 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3267 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3268 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3269 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3270 to
[LFACE_FONT_INDEX
] = Qnil
;
3272 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3273 if (!UNSPECIFIEDP (from
[i
]))
3274 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3275 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
], cycle_check
);
3279 /* TO is always an absolute face, which should inherit from nothing.
3280 We blindly copy the :inherit attribute above and fix it up here. */
3281 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3285 /* Checks the `cycle check' variable CHECK to see if it indicates that
3286 EL is part of a cycle; CHECK must be either Qnil or a value returned
3287 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3288 elements after which a cycle might be suspected; after that many
3289 elements, this macro begins consing in order to keep more precise
3292 Returns NIL if a cycle was detected, otherwise a new value for CHECK
3295 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3296 the caller should make sure that's ok. */
3298 #define CYCLE_CHECK(check, el, suspicious) \
3301 : (INTEGERP (check) \
3302 ? (XFASTINT (check) < (suspicious) \
3303 ? make_number (XFASTINT (check) + 1) \
3304 : Fcons (el, Qnil)) \
3305 : (!NILP (Fmemq ((el), (check))) \
3307 : Fcons ((el), (check)))))
3310 /* Merge face attributes from the face on frame F whose name is
3311 INHERITS, into the vector of face attributes TO; INHERITS may also be
3312 a list of face names, in which case they are applied in order.
3313 CYCLE_CHECK is used to detect loops in face inheritance.
3314 Returns true if any of the inherited attributes are `font-related'. */
3317 merge_face_inheritance (f
, inherit
, to
, cycle_check
)
3319 Lisp_Object inherit
;
3321 Lisp_Object cycle_check
;
3323 if (SYMBOLP (inherit
) && !EQ (inherit
, Qunspecified
))
3324 /* Inherit from the named face INHERIT. */
3328 /* Make sure we're not in an inheritance loop. */
3329 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3330 if (NILP (cycle_check
))
3331 /* Cycle detected, ignore any further inheritance. */
3334 lface
= lface_from_face_name (f
, inherit
, 0);
3336 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, cycle_check
);
3338 else if (CONSP (inherit
))
3339 /* Handle a list of inherited faces by calling ourselves recursively
3340 on each element. Note that we only do so for symbol elements, so
3341 it's not possible to infinitely recurse. */
3343 while (CONSP (inherit
))
3345 if (SYMBOLP (XCAR (inherit
)))
3346 merge_face_inheritance (f
, XCAR (inherit
), to
, cycle_check
);
3348 /* Check for a circular inheritance list. */
3349 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3350 if (NILP (cycle_check
))
3351 /* Cycle detected. */
3354 inherit
= XCDR (inherit
);
3360 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3361 is a face property, determine the resulting face attributes on
3362 frame F, and store them in TO. PROP may be a single face
3363 specification or a list of such specifications. Each face
3364 specification can be
3366 1. A symbol or string naming a Lisp face.
3368 2. A property list of the form (KEYWORD VALUE ...) where each
3369 KEYWORD is a face attribute name, and value is an appropriate value
3372 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3373 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3374 for compatibility with 20.2.
3376 Face specifications earlier in lists take precedence over later
3380 merge_face_vector_with_property (f
, to
, prop
)
3387 Lisp_Object first
= XCAR (prop
);
3389 if (EQ (first
, Qforeground_color
)
3390 || EQ (first
, Qbackground_color
))
3392 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3393 . COLOR). COLOR must be a string. */
3394 Lisp_Object color_name
= XCDR (prop
);
3395 Lisp_Object color
= first
;
3397 if (STRINGP (color_name
))
3399 if (EQ (color
, Qforeground_color
))
3400 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3402 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3405 add_to_log ("Invalid face color", color_name
, Qnil
);
3407 else if (SYMBOLP (first
)
3408 && *XSYMBOL (first
)->name
->data
== ':')
3410 /* Assume this is the property list form. */
3411 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3413 Lisp_Object keyword
= XCAR (prop
);
3414 Lisp_Object value
= XCAR (XCDR (prop
));
3416 if (EQ (keyword
, QCfamily
))
3418 if (STRINGP (value
))
3419 to
[LFACE_FAMILY_INDEX
] = value
;
3421 add_to_log ("Invalid face font family", value
, Qnil
);
3423 else if (EQ (keyword
, QCheight
))
3425 Lisp_Object new_height
=
3426 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3429 if (NILP (new_height
))
3430 add_to_log ("Invalid face font height", value
, Qnil
);
3432 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3434 else if (EQ (keyword
, QCweight
))
3437 && face_numeric_weight (value
) >= 0)
3438 to
[LFACE_WEIGHT_INDEX
] = value
;
3440 add_to_log ("Invalid face weight", value
, Qnil
);
3442 else if (EQ (keyword
, QCslant
))
3445 && face_numeric_slant (value
) >= 0)
3446 to
[LFACE_SLANT_INDEX
] = value
;
3448 add_to_log ("Invalid face slant", value
, Qnil
);
3450 else if (EQ (keyword
, QCunderline
))
3455 to
[LFACE_UNDERLINE_INDEX
] = value
;
3457 add_to_log ("Invalid face underline", value
, Qnil
);
3459 else if (EQ (keyword
, QCoverline
))
3464 to
[LFACE_OVERLINE_INDEX
] = value
;
3466 add_to_log ("Invalid face overline", value
, Qnil
);
3468 else if (EQ (keyword
, QCstrike_through
))
3473 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3475 add_to_log ("Invalid face strike-through", value
, Qnil
);
3477 else if (EQ (keyword
, QCbox
))
3480 value
= make_number (1);
3481 if (INTEGERP (value
)
3485 to
[LFACE_BOX_INDEX
] = value
;
3487 add_to_log ("Invalid face box", value
, Qnil
);
3489 else if (EQ (keyword
, QCinverse_video
)
3490 || EQ (keyword
, QCreverse_video
))
3492 if (EQ (value
, Qt
) || NILP (value
))
3493 to
[LFACE_INVERSE_INDEX
] = value
;
3495 add_to_log ("Invalid face inverse-video", value
, Qnil
);
3497 else if (EQ (keyword
, QCforeground
))
3499 if (STRINGP (value
))
3500 to
[LFACE_FOREGROUND_INDEX
] = value
;
3502 add_to_log ("Invalid face foreground", value
, Qnil
);
3504 else if (EQ (keyword
, QCbackground
))
3506 if (STRINGP (value
))
3507 to
[LFACE_BACKGROUND_INDEX
] = value
;
3509 add_to_log ("Invalid face background", value
, Qnil
);
3511 else if (EQ (keyword
, QCstipple
))
3513 #ifdef HAVE_X_WINDOWS
3514 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3515 if (!NILP (pixmap_p
))
3516 to
[LFACE_STIPPLE_INDEX
] = value
;
3518 add_to_log ("Invalid face stipple", value
, Qnil
);
3521 else if (EQ (keyword
, QCwidth
))
3524 && face_numeric_swidth (value
) >= 0)
3525 to
[LFACE_SWIDTH_INDEX
] = value
;
3527 add_to_log ("Invalid face width", value
, Qnil
);
3529 else if (EQ (keyword
, QCinherit
))
3531 if (SYMBOLP (value
))
3532 to
[LFACE_INHERIT_INDEX
] = value
;
3536 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3537 if (!SYMBOLP (XCAR (tail
)))
3540 to
[LFACE_INHERIT_INDEX
] = value
;
3542 add_to_log ("Invalid face inherit", value
, Qnil
);
3546 add_to_log ("Invalid attribute %s in face property",
3549 prop
= XCDR (XCDR (prop
));
3554 /* This is a list of face specs. Specifications at the
3555 beginning of the list take precedence over later
3556 specifications, so we have to merge starting with the
3557 last specification. */
3558 Lisp_Object next
= XCDR (prop
);
3560 merge_face_vector_with_property (f
, to
, next
);
3561 merge_face_vector_with_property (f
, to
, first
);
3566 /* PROP ought to be a face name. */
3567 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3569 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3571 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, Qnil
);
3576 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3577 Sinternal_make_lisp_face
, 1, 2, 0,
3578 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3579 If FACE was not known as a face before, create a new one.\n\
3580 If optional argument FRAME is specified, make a frame-local face\n\
3581 for that frame. Otherwise operate on the global face definition.\n\
3582 Value is a vector of face attributes.")
3584 Lisp_Object face
, frame
;
3586 Lisp_Object global_lface
, lface
;
3590 CHECK_SYMBOL (face
, 0);
3591 global_lface
= lface_from_face_name (NULL
, face
, 0);
3595 CHECK_LIVE_FRAME (frame
, 1);
3597 lface
= lface_from_face_name (f
, face
, 0);
3600 f
= NULL
, lface
= Qnil
;
3602 /* Add a global definition if there is none. */
3603 if (NILP (global_lface
))
3605 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3607 AREF (global_lface
, 0) = Qface
;
3608 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3609 Vface_new_frame_defaults
);
3611 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3612 face id to Lisp face is given by the vector lface_id_to_name.
3613 The mapping from Lisp face to Lisp face id is given by the
3614 property `face' of the Lisp face name. */
3615 if (next_lface_id
== lface_id_to_name_size
)
3617 int new_size
= max (50, 2 * lface_id_to_name_size
);
3618 int sz
= new_size
* sizeof *lface_id_to_name
;
3619 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3620 lface_id_to_name_size
= new_size
;
3623 lface_id_to_name
[next_lface_id
] = face
;
3624 Fput (face
, Qface
, make_number (next_lface_id
));
3628 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3629 AREF (global_lface
, i
) = Qunspecified
;
3631 /* Add a frame-local definition. */
3636 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3638 AREF (lface
, 0) = Qface
;
3639 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3642 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3643 AREF (lface
, i
) = Qunspecified
;
3646 lface
= global_lface
;
3648 xassert (LFACEP (lface
));
3649 check_lface (lface
);
3654 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3655 Sinternal_lisp_face_p
, 1, 2, 0,
3656 "Return non-nil if FACE names a face.\n\
3657 If optional second parameter FRAME is non-nil, check for the\n\
3658 existence of a frame-local face with name FACE on that frame.\n\
3659 Otherwise check for the existence of a global face.")
3661 Lisp_Object face
, frame
;
3667 CHECK_LIVE_FRAME (frame
, 1);
3668 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3671 lface
= lface_from_face_name (NULL
, face
, 0);
3677 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3678 Sinternal_copy_lisp_face
, 4, 4, 0,
3679 "Copy face FROM to TO.\n\
3680 If FRAME it t, copy the global face definition of FROM to the\n\
3681 global face definition of TO. Otherwise, copy the frame-local\n\
3682 definition of FROM on FRAME to the frame-local definition of TO\n\
3683 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3686 (from
, to
, frame
, new_frame
)
3687 Lisp_Object from
, to
, frame
, new_frame
;
3689 Lisp_Object lface
, copy
;
3691 CHECK_SYMBOL (from
, 0);
3692 CHECK_SYMBOL (to
, 1);
3693 if (NILP (new_frame
))
3698 /* Copy global definition of FROM. We don't make copies of
3699 strings etc. because 20.2 didn't do it either. */
3700 lface
= lface_from_face_name (NULL
, from
, 1);
3701 copy
= Finternal_make_lisp_face (to
, Qnil
);
3705 /* Copy frame-local definition of FROM. */
3706 CHECK_LIVE_FRAME (frame
, 2);
3707 CHECK_LIVE_FRAME (new_frame
, 3);
3708 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3709 copy
= Finternal_make_lisp_face (to
, new_frame
);
3712 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3713 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3719 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3720 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3721 "Set attribute ATTR of FACE to VALUE.\n\
3722 FRAME being a frame means change the face on that frame.\n\
3723 FRAME nil means change change the face of the selected frame.\n\
3724 FRAME t means change the default for new frames.\n\
3725 FRAME 0 means change the face on all frames, and change the default\n\
3727 (face
, attr
, value
, frame
)
3728 Lisp_Object face
, attr
, value
, frame
;
3731 Lisp_Object old_value
= Qnil
;
3732 /* Set 1 if ATTR is QCfont. */
3733 int font_attr_p
= 0;
3734 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3735 int font_related_attr_p
= 0;
3737 CHECK_SYMBOL (face
, 0);
3738 CHECK_SYMBOL (attr
, 1);
3740 face
= resolve_face_name (face
);
3742 /* If FRAME is 0, change face on all frames, and change the
3743 default for new frames. */
3744 if (INTEGERP (frame
) && XINT (frame
) == 0)
3747 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3748 FOR_EACH_FRAME (tail
, frame
)
3749 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3753 /* Set lface to the Lisp attribute vector of FACE. */
3755 lface
= lface_from_face_name (NULL
, face
, 1);
3759 frame
= selected_frame
;
3761 CHECK_LIVE_FRAME (frame
, 3);
3762 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3764 /* If a frame-local face doesn't exist yet, create one. */
3766 lface
= Finternal_make_lisp_face (face
, frame
);
3769 if (EQ (attr
, QCfamily
))
3771 if (!UNSPECIFIEDP (value
))
3773 CHECK_STRING (value
, 3);
3774 if (XSTRING (value
)->size
== 0)
3775 signal_error ("Invalid face family", value
);
3777 old_value
= LFACE_FAMILY (lface
);
3778 LFACE_FAMILY (lface
) = value
;
3779 font_related_attr_p
= 1;
3781 else if (EQ (attr
, QCheight
))
3783 if (!UNSPECIFIEDP (value
))
3786 (EQ (face
, Qdefault
) ? value
:
3787 /* The default face must have an absolute size, otherwise, we do
3788 a test merge with a random height to see if VALUE's ok. */
3789 merge_face_heights (value
, make_number(10), Qnil
, Qnil
));
3791 if (!INTEGERP(test
) || XINT(test
) <= 0)
3792 signal_error ("Invalid face height", value
);
3795 old_value
= LFACE_HEIGHT (lface
);
3796 LFACE_HEIGHT (lface
) = value
;
3797 font_related_attr_p
= 1;
3799 else if (EQ (attr
, QCweight
))
3801 if (!UNSPECIFIEDP (value
))
3803 CHECK_SYMBOL (value
, 3);
3804 if (face_numeric_weight (value
) < 0)
3805 signal_error ("Invalid face weight", value
);
3807 old_value
= LFACE_WEIGHT (lface
);
3808 LFACE_WEIGHT (lface
) = value
;
3809 font_related_attr_p
= 1;
3811 else if (EQ (attr
, QCslant
))
3813 if (!UNSPECIFIEDP (value
))
3815 CHECK_SYMBOL (value
, 3);
3816 if (face_numeric_slant (value
) < 0)
3817 signal_error ("Invalid face slant", value
);
3819 old_value
= LFACE_SLANT (lface
);
3820 LFACE_SLANT (lface
) = value
;
3821 font_related_attr_p
= 1;
3823 else if (EQ (attr
, QCunderline
))
3825 if (!UNSPECIFIEDP (value
))
3826 if ((SYMBOLP (value
)
3828 && !EQ (value
, Qnil
))
3829 /* Underline color. */
3831 && XSTRING (value
)->size
== 0))
3832 signal_error ("Invalid face underline", value
);
3834 old_value
= LFACE_UNDERLINE (lface
);
3835 LFACE_UNDERLINE (lface
) = value
;
3837 else if (EQ (attr
, QCoverline
))
3839 if (!UNSPECIFIEDP (value
))
3840 if ((SYMBOLP (value
)
3842 && !EQ (value
, Qnil
))
3843 /* Overline color. */
3845 && XSTRING (value
)->size
== 0))
3846 signal_error ("Invalid face overline", value
);
3848 old_value
= LFACE_OVERLINE (lface
);
3849 LFACE_OVERLINE (lface
) = value
;
3851 else if (EQ (attr
, QCstrike_through
))
3853 if (!UNSPECIFIEDP (value
))
3854 if ((SYMBOLP (value
)
3856 && !EQ (value
, Qnil
))
3857 /* Strike-through color. */
3859 && XSTRING (value
)->size
== 0))
3860 signal_error ("Invalid face strike-through", value
);
3862 old_value
= LFACE_STRIKE_THROUGH (lface
);
3863 LFACE_STRIKE_THROUGH (lface
) = value
;
3865 else if (EQ (attr
, QCbox
))
3869 /* Allow t meaning a simple box of width 1 in foreground color
3872 value
= make_number (1);
3874 if (UNSPECIFIEDP (value
))
3876 else if (NILP (value
))
3878 else if (INTEGERP (value
))
3879 valid_p
= XINT (value
) != 0;
3880 else if (STRINGP (value
))
3881 valid_p
= XSTRING (value
)->size
> 0;
3882 else if (CONSP (value
))
3898 if (EQ (k
, QCline_width
))
3900 if (!INTEGERP (v
) || XINT (v
) == 0)
3903 else if (EQ (k
, QCcolor
))
3905 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3908 else if (EQ (k
, QCstyle
))
3910 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3917 valid_p
= NILP (tem
);
3923 signal_error ("Invalid face box", value
);
3925 old_value
= LFACE_BOX (lface
);
3926 LFACE_BOX (lface
) = value
;
3928 else if (EQ (attr
, QCinverse_video
)
3929 || EQ (attr
, QCreverse_video
))
3931 if (!UNSPECIFIEDP (value
))
3933 CHECK_SYMBOL (value
, 3);
3934 if (!EQ (value
, Qt
) && !NILP (value
))
3935 signal_error ("Invalid inverse-video face attribute value", value
);
3937 old_value
= LFACE_INVERSE (lface
);
3938 LFACE_INVERSE (lface
) = value
;
3940 else if (EQ (attr
, QCforeground
))
3942 if (!UNSPECIFIEDP (value
))
3944 /* Don't check for valid color names here because it depends
3945 on the frame (display) whether the color will be valid
3946 when the face is realized. */
3947 CHECK_STRING (value
, 3);
3948 if (XSTRING (value
)->size
== 0)
3949 signal_error ("Empty foreground color value", value
);
3951 old_value
= LFACE_FOREGROUND (lface
);
3952 LFACE_FOREGROUND (lface
) = value
;
3954 else if (EQ (attr
, QCbackground
))
3956 if (!UNSPECIFIEDP (value
))
3958 /* Don't check for valid color names here because it depends
3959 on the frame (display) whether the color will be valid
3960 when the face is realized. */
3961 CHECK_STRING (value
, 3);
3962 if (XSTRING (value
)->size
== 0)
3963 signal_error ("Empty background color value", value
);
3965 old_value
= LFACE_BACKGROUND (lface
);
3966 LFACE_BACKGROUND (lface
) = value
;
3968 else if (EQ (attr
, QCstipple
))
3970 #ifdef HAVE_X_WINDOWS
3971 if (!UNSPECIFIEDP (value
)
3973 && NILP (Fbitmap_spec_p (value
)))
3974 signal_error ("Invalid stipple attribute", value
);
3975 old_value
= LFACE_STIPPLE (lface
);
3976 LFACE_STIPPLE (lface
) = value
;
3977 #endif /* HAVE_X_WINDOWS */
3979 else if (EQ (attr
, QCwidth
))
3981 if (!UNSPECIFIEDP (value
))
3983 CHECK_SYMBOL (value
, 3);
3984 if (face_numeric_swidth (value
) < 0)
3985 signal_error ("Invalid face width", value
);
3987 old_value
= LFACE_SWIDTH (lface
);
3988 LFACE_SWIDTH (lface
) = value
;
3989 font_related_attr_p
= 1;
3991 else if (EQ (attr
, QCfont
))
3993 #ifdef HAVE_WINDOW_SYSTEM
3994 /* Set font-related attributes of the Lisp face from an
3999 CHECK_STRING (value
, 3);
4001 f
= SELECTED_FRAME ();
4003 f
= check_x_frame (frame
);
4005 /* VALUE may be a fontset name or an alias of fontset. In such
4006 a case, use the base fontset name. */
4007 tmp
= Fquery_fontset (value
, Qnil
);
4011 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4012 signal_error ("Invalid font or fontset name", value
);
4015 #endif /* HAVE_WINDOW_SYSTEM */
4017 else if (EQ (attr
, QCinherit
))
4020 if (SYMBOLP (value
))
4023 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4024 if (!SYMBOLP (XCAR (tail
)))
4027 LFACE_INHERIT (lface
) = value
;
4029 signal_error ("Invalid face inheritance", value
);
4031 else if (EQ (attr
, QCbold
))
4033 old_value
= LFACE_WEIGHT (lface
);
4034 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4035 font_related_attr_p
= 1;
4037 else if (EQ (attr
, QCitalic
))
4039 old_value
= LFACE_SLANT (lface
);
4040 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4041 font_related_attr_p
= 1;
4044 signal_error ("Invalid face attribute name", attr
);
4046 if (font_related_attr_p
4047 && !UNSPECIFIEDP (value
))
4048 /* If a font-related attribute other than QCfont is specified, the
4049 original `font' attribute nor that of default face is useless
4050 to determine a new font. Thus, we set it to nil so that font
4051 selection mechanism doesn't use it. */
4052 LFACE_FONT (lface
) = Qnil
;
4054 /* Changing a named face means that all realized faces depending on
4055 that face are invalid. Since we cannot tell which realized faces
4056 depend on the face, make sure they are all removed. This is done
4057 by incrementing face_change_count. The next call to
4058 init_iterator will then free realized faces. */
4060 && (EQ (attr
, QCfont
)
4061 || NILP (Fequal (old_value
, value
))))
4063 ++face_change_count
;
4064 ++windows_or_buffers_changed
;
4067 if (!UNSPECIFIEDP (value
)
4068 && NILP (Fequal (old_value
, value
)))
4074 if (EQ (face
, Qdefault
))
4076 #ifdef HAVE_WINDOW_SYSTEM
4077 /* Changed font-related attributes of the `default' face are
4078 reflected in changed `font' frame parameters. */
4079 if ((font_related_attr_p
|| font_attr_p
)
4080 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4081 set_font_frame_param (frame
, lface
);
4083 #endif /* HAVE_WINDOW_SYSTEM */
4085 if (EQ (attr
, QCforeground
))
4086 param
= Qforeground_color
;
4087 else if (EQ (attr
, QCbackground
))
4088 param
= Qbackground_color
;
4090 #ifdef HAVE_WINDOW_SYSTEM
4092 else if (EQ (face
, Qscroll_bar
))
4094 /* Changing the colors of `scroll-bar' sets frame parameters
4095 `scroll-bar-foreground' and `scroll-bar-background'. */
4096 if (EQ (attr
, QCforeground
))
4097 param
= Qscroll_bar_foreground
;
4098 else if (EQ (attr
, QCbackground
))
4099 param
= Qscroll_bar_background
;
4101 #endif /* not WINDOWSNT */
4102 else if (EQ (face
, Qborder
))
4104 /* Changing background color of `border' sets frame parameter
4106 if (EQ (attr
, QCbackground
))
4107 param
= Qborder_color
;
4109 else if (EQ (face
, Qcursor
))
4111 /* Changing background color of `cursor' sets frame parameter
4113 if (EQ (attr
, QCbackground
))
4114 param
= Qcursor_color
;
4116 else if (EQ (face
, Qmouse
))
4118 /* Changing background color of `mouse' sets frame parameter
4120 if (EQ (attr
, QCbackground
))
4121 param
= Qmouse_color
;
4123 #endif /* HAVE_WINDOW_SYSTEM */
4124 else if (EQ (face
, Qmenu
))
4125 ++menu_face_change_count
;
4129 /* Update `default-frame-alist', which is used for new frames. */
4131 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4134 /* Update the current frame's parameters. */
4137 cons
= XCAR (Vparam_value_alist
);
4138 XCAR (cons
) = param
;
4139 XCDR (cons
) = value
;
4140 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4148 #ifdef HAVE_WINDOW_SYSTEM
4150 /* Set the `font' frame parameter of FRAME determined from `default'
4151 face attributes LFACE. If a face or fontset name is explicitely
4152 specfied in LFACE, use it as is. Otherwise, determine a font name
4153 from the other font-related atrributes of LFACE. In that case, if
4154 there's no matching font, signals an error. */
4157 set_font_frame_param (frame
, lface
)
4158 Lisp_Object frame
, lface
;
4160 struct frame
*f
= XFRAME (frame
);
4162 if (FRAME_WINDOW_P (f
))
4164 Lisp_Object font_name
;
4167 if (STRINGP (LFACE_FONT (lface
)))
4168 font_name
= LFACE_FONT (lface
);
4171 /* Choose a font name that reflects LFACE's attributes and has
4172 the registry and encoding pattern specified in the default
4173 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4174 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0);
4176 error ("No font matches the specified attribute");
4177 font_name
= build_string (font
);
4181 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4186 /* Update the corresponding face when frame parameter PARAM on frame F
4187 has been assigned the value NEW_VALUE. */
4190 update_face_from_frame_parameter (f
, param
, new_value
)
4192 Lisp_Object param
, new_value
;
4196 /* If there are no faces yet, give up. This is the case when called
4197 from Fx_create_frame, and we do the necessary things later in
4198 face-set-after-frame-defaults. */
4199 if (NILP (f
->face_alist
))
4202 if (EQ (param
, Qforeground_color
))
4204 lface
= lface_from_face_name (f
, Qdefault
, 1);
4205 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4206 ? new_value
: Qunspecified
);
4207 realize_basic_faces (f
);
4209 else if (EQ (param
, Qbackground_color
))
4213 /* Changing the background color might change the background
4214 mode, so that we have to load new defface specs. Call
4215 frame-update-face-colors to do that. */
4216 XSETFRAME (frame
, f
);
4217 call1 (Qframe_update_face_colors
, frame
);
4219 lface
= lface_from_face_name (f
, Qdefault
, 1);
4220 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4221 ? new_value
: Qunspecified
);
4222 realize_basic_faces (f
);
4224 if (EQ (param
, Qborder_color
))
4226 lface
= lface_from_face_name (f
, Qborder
, 1);
4227 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4228 ? new_value
: Qunspecified
);
4230 else if (EQ (param
, Qcursor_color
))
4232 lface
= lface_from_face_name (f
, Qcursor
, 1);
4233 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4234 ? new_value
: Qunspecified
);
4236 else if (EQ (param
, Qmouse_color
))
4238 lface
= lface_from_face_name (f
, Qmouse
, 1);
4239 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4240 ? new_value
: Qunspecified
);
4245 /* Get the value of X resource RESOURCE, class CLASS for the display
4246 of frame FRAME. This is here because ordinary `x-get-resource'
4247 doesn't take a frame argument. */
4249 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4250 Sinternal_face_x_get_resource
, 3, 3, 0, "")
4251 (resource
, class, frame
)
4252 Lisp_Object resource
, class, frame
;
4254 Lisp_Object value
= Qnil
;
4257 CHECK_STRING (resource
, 0);
4258 CHECK_STRING (class, 1);
4259 CHECK_LIVE_FRAME (frame
, 2);
4261 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4262 resource
, class, Qnil
, Qnil
);
4264 #endif /* not macintosh */
4265 #endif /* not WINDOWSNT */
4270 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4271 If VALUE is "on" or "true", return t. If VALUE is "off" or
4272 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4273 error; if SIGNAL_P is zero, return 0. */
4276 face_boolean_x_resource_value (value
, signal_p
)
4280 Lisp_Object result
= make_number (0);
4282 xassert (STRINGP (value
));
4284 if (xstricmp (XSTRING (value
)->data
, "on") == 0
4285 || xstricmp (XSTRING (value
)->data
, "true") == 0)
4287 else if (xstricmp (XSTRING (value
)->data
, "off") == 0
4288 || xstricmp (XSTRING (value
)->data
, "false") == 0)
4290 else if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
4291 result
= Qunspecified
;
4293 signal_error ("Invalid face attribute value from X resource", value
);
4299 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4300 Finternal_set_lisp_face_attribute_from_resource
,
4301 Sinternal_set_lisp_face_attribute_from_resource
,
4303 (face
, attr
, value
, frame
)
4304 Lisp_Object face
, attr
, value
, frame
;
4306 CHECK_SYMBOL (face
, 0);
4307 CHECK_SYMBOL (attr
, 1);
4308 CHECK_STRING (value
, 2);
4310 if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
4311 value
= Qunspecified
;
4312 else if (EQ (attr
, QCheight
))
4314 value
= Fstring_to_number (value
, make_number (10));
4315 if (XINT (value
) <= 0)
4316 signal_error ("Invalid face height from X resource", value
);
4318 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4319 value
= face_boolean_x_resource_value (value
, 1);
4320 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4321 value
= intern (XSTRING (value
)->data
);
4322 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4323 value
= face_boolean_x_resource_value (value
, 1);
4324 else if (EQ (attr
, QCunderline
)
4325 || EQ (attr
, QCoverline
)
4326 || EQ (attr
, QCstrike_through
)
4327 || EQ (attr
, QCbox
))
4329 Lisp_Object boolean_value
;
4331 /* If the result of face_boolean_x_resource_value is t or nil,
4332 VALUE does NOT specify a color. */
4333 boolean_value
= face_boolean_x_resource_value (value
, 0);
4334 if (SYMBOLP (boolean_value
))
4335 value
= boolean_value
;
4338 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4341 #endif /* HAVE_WINDOW_SYSTEM */
4344 #ifdef HAVE_X_WINDOWS
4345 /***********************************************************************
4347 ***********************************************************************/
4349 #ifdef USE_X_TOOLKIT
4352 x_set_menu_face_resources (f
)
4355 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4359 Display
*dpy
= FRAME_X_DISPLAY (f
);
4360 XrmDatabase rdb
= XrmGetDatabase (dpy
);
4361 extern Lisp_Object Vx_resource_name
;
4366 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4367 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4368 char *myname
= XSTRING (Vx_resource_name
)->data
;
4371 if (STRINGP (LFACE_FOREGROUND (lface
)))
4373 sprintf (line
, "%s.menu*foreground: %s",
4374 myname
, XSTRING (LFACE_FOREGROUND (lface
))->data
);
4375 XrmPutLineResource (&rdb
, line
);
4376 sprintf (line
, "%s.pane.menubar*foreground: %s",
4377 myname
, XSTRING (LFACE_FOREGROUND (lface
))->data
);
4378 XrmPutLineResource (&rdb
, line
);
4382 if (STRINGP (LFACE_BACKGROUND (lface
)))
4384 sprintf (line
, "%s*menu*background: %s",
4385 myname
, XSTRING (LFACE_BACKGROUND (lface
))->data
);
4386 XrmPutLineResource (&rdb
, line
);
4387 sprintf (line
, "%s.pane.menubar*background: %s",
4388 myname
, XSTRING (LFACE_BACKGROUND (lface
))->data
);
4389 XrmPutLineResource (&rdb
, line
);
4394 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4395 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4396 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4397 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4398 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4399 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4402 char *format1
= "%s.pane.menubar*fontList: %s";
4403 char *format2
= "%s*menu*fontList: %s";
4405 char *format1
= "%s.pane.menubar*font: %s";
4406 char *format2
= "%s*menu*font: %s";
4408 sprintf (line
, format1
, myname
, face
->font_name
);
4409 XrmPutLineResource (&rdb
, line
);
4410 sprintf (line
, format2
, myname
, face
->font_name
);
4411 XrmPutLineResource (&rdb
, line
);
4415 if (changes
&& f
->output_data
.x
->menubar_widget
)
4417 free_frame_menubar (f
);
4418 set_frame_menubar (f
, 1, 1);
4419 XWINDOW (FRAME_SELECTED_WINDOW (f
))->update_mode_line
= Qt
;
4426 #endif /* USE_X_TOOLKIT */
4428 #endif /* HAVE_X_WINDOWS */
4432 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4433 Sinternal_get_lisp_face_attribute
,
4435 "Return face attribute KEYWORD of face SYMBOL.\n\
4436 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
4437 face attribute name, signal an error.\n\
4438 If the optional argument FRAME is given, report on face FACE in that\n\
4439 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
4440 frames). If FRAME is omitted or nil, use the selected frame.")
4441 (symbol
, keyword
, frame
)
4442 Lisp_Object symbol
, keyword
, frame
;
4444 Lisp_Object lface
, value
= Qnil
;
4446 CHECK_SYMBOL (symbol
, 0);
4447 CHECK_SYMBOL (keyword
, 1);
4450 lface
= lface_from_face_name (NULL
, symbol
, 1);
4454 frame
= selected_frame
;
4455 CHECK_LIVE_FRAME (frame
, 2);
4456 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4459 if (EQ (keyword
, QCfamily
))
4460 value
= LFACE_FAMILY (lface
);
4461 else if (EQ (keyword
, QCheight
))
4462 value
= LFACE_HEIGHT (lface
);
4463 else if (EQ (keyword
, QCweight
))
4464 value
= LFACE_WEIGHT (lface
);
4465 else if (EQ (keyword
, QCslant
))
4466 value
= LFACE_SLANT (lface
);
4467 else if (EQ (keyword
, QCunderline
))
4468 value
= LFACE_UNDERLINE (lface
);
4469 else if (EQ (keyword
, QCoverline
))
4470 value
= LFACE_OVERLINE (lface
);
4471 else if (EQ (keyword
, QCstrike_through
))
4472 value
= LFACE_STRIKE_THROUGH (lface
);
4473 else if (EQ (keyword
, QCbox
))
4474 value
= LFACE_BOX (lface
);
4475 else if (EQ (keyword
, QCinverse_video
)
4476 || EQ (keyword
, QCreverse_video
))
4477 value
= LFACE_INVERSE (lface
);
4478 else if (EQ (keyword
, QCforeground
))
4479 value
= LFACE_FOREGROUND (lface
);
4480 else if (EQ (keyword
, QCbackground
))
4481 value
= LFACE_BACKGROUND (lface
);
4482 else if (EQ (keyword
, QCstipple
))
4483 value
= LFACE_STIPPLE (lface
);
4484 else if (EQ (keyword
, QCwidth
))
4485 value
= LFACE_SWIDTH (lface
);
4486 else if (EQ (keyword
, QCinherit
))
4487 value
= LFACE_INHERIT (lface
);
4488 else if (EQ (keyword
, QCfont
))
4489 value
= LFACE_FONT (lface
);
4491 signal_error ("Invalid face attribute name", keyword
);
4497 DEFUN ("internal-lisp-face-attribute-values",
4498 Finternal_lisp_face_attribute_values
,
4499 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4500 "Return a list of valid discrete values for face attribute ATTR.\n\
4501 Value is nil if ATTR doesn't have a discrete set of valid values.")
4505 Lisp_Object result
= Qnil
;
4507 CHECK_SYMBOL (attr
, 0);
4509 if (EQ (attr
, QCweight
)
4510 || EQ (attr
, QCslant
)
4511 || EQ (attr
, QCwidth
))
4513 /* Extract permissible symbols from tables. */
4514 struct table_entry
*table
;
4517 if (EQ (attr
, QCweight
))
4518 table
= weight_table
, dim
= DIM (weight_table
);
4519 else if (EQ (attr
, QCslant
))
4520 table
= slant_table
, dim
= DIM (slant_table
);
4522 table
= swidth_table
, dim
= DIM (swidth_table
);
4524 for (i
= 0; i
< dim
; ++i
)
4526 Lisp_Object symbol
= *table
[i
].symbol
;
4527 Lisp_Object tail
= result
;
4530 && !EQ (XCAR (tail
), symbol
))
4534 result
= Fcons (symbol
, result
);
4537 else if (EQ (attr
, QCunderline
))
4538 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4539 else if (EQ (attr
, QCoverline
))
4540 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4541 else if (EQ (attr
, QCstrike_through
))
4542 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4543 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4544 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4550 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4551 Sinternal_merge_in_global_face
, 2, 2, 0,
4552 "Add attributes from frame-default definition of FACE to FACE on FRAME.\n\
4553 Default face attributes override any local face attributes.")
4555 Lisp_Object face
, frame
;
4558 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4560 CHECK_LIVE_FRAME (frame
, 1);
4561 global_lface
= lface_from_face_name (NULL
, face
, 1);
4562 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4563 if (NILP (local_lface
))
4564 local_lface
= Finternal_make_lisp_face (face
, frame
);
4566 /* Make every specified global attribute override the local one.
4567 BEWARE!! This is only used from `face-set-after-frame-default' where
4568 the local frame is defined from default specs in `face-defface-spec'
4569 and those should be overridden by global settings. Hence the strange
4570 "global before local" priority. */
4571 lvec
= XVECTOR (local_lface
)->contents
;
4572 gvec
= XVECTOR (global_lface
)->contents
;
4573 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4574 if (! UNSPECIFIEDP (gvec
[i
]))
4581 /* The following function is implemented for compatibility with 20.2.
4582 The function is used in x-resolve-fonts when it is asked to
4583 return fonts with the same size as the font of a face. This is
4584 done in fontset.el. */
4586 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4587 "Return the font name of face FACE, or nil if it is unspecified.\n\
4588 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4589 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4590 The font default for a face is either nil, or a list\n\
4591 of the form (bold), (italic) or (bold italic).\n\
4592 If FRAME is omitted or nil, use the selected frame.")
4594 Lisp_Object face
, frame
;
4598 Lisp_Object result
= Qnil
;
4599 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4601 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4602 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4603 result
= Fcons (Qbold
, result
);
4605 if (!NILP (LFACE_SLANT (lface
))
4606 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4607 result
= Fcons (Qitalic
, result
);
4613 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4614 int face_id
= lookup_named_face (f
, face
, 0);
4615 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4616 return face
? build_string (face
->font_name
) : Qnil
;
4621 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4622 all attributes are `equal'. Tries to be fast because this function
4623 is called quite often. */
4626 lface_equal_p (v1
, v2
)
4627 Lisp_Object
*v1
, *v2
;
4631 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4633 Lisp_Object a
= v1
[i
];
4634 Lisp_Object b
= v2
[i
];
4636 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4637 and the other is specified. */
4638 equal_p
= XTYPE (a
) == XTYPE (b
);
4647 equal_p
= ((STRING_BYTES (XSTRING (a
))
4648 == STRING_BYTES (XSTRING (b
)))
4649 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4650 STRING_BYTES (XSTRING (a
))) == 0);
4659 equal_p
= !NILP (Fequal (a
, b
));
4669 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4670 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4671 "True if FACE1 and FACE2 are equal.\n\
4672 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4673 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4674 If FRAME is omitted or nil, use the selected frame.")
4675 (face1
, face2
, frame
)
4676 Lisp_Object face1
, face2
, frame
;
4680 Lisp_Object lface1
, lface2
;
4685 /* Don't use check_x_frame here because this function is called
4686 before X frames exist. At that time, if FRAME is nil,
4687 selected_frame will be used which is the frame dumped with
4688 Emacs. That frame is not an X frame. */
4689 f
= frame_or_selected_frame (frame
, 2);
4691 lface1
= lface_from_face_name (NULL
, face1
, 1);
4692 lface2
= lface_from_face_name (NULL
, face2
, 1);
4693 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4694 XVECTOR (lface2
)->contents
);
4695 return equal_p
? Qt
: Qnil
;
4699 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4700 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4701 "True if FACE has no attribute specified.\n\
4702 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4703 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4704 If FRAME is omitted or nil, use the selected frame.")
4706 Lisp_Object face
, frame
;
4713 frame
= selected_frame
;
4714 CHECK_LIVE_FRAME (frame
, 0);
4718 lface
= lface_from_face_name (NULL
, face
, 1);
4720 lface
= lface_from_face_name (f
, face
, 1);
4722 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4723 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4726 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4730 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4732 "Return an alist of frame-local faces defined on FRAME.\n\
4733 For internal use only.")
4737 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4738 return f
->face_alist
;
4742 /* Return a hash code for Lisp string STRING with case ignored. Used
4743 below in computing a hash value for a Lisp face. */
4745 static INLINE
unsigned
4746 hash_string_case_insensitive (string
)
4751 xassert (STRINGP (string
));
4752 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4753 hash
= (hash
<< 1) ^ tolower (*s
);
4758 /* Return a hash code for face attribute vector V. */
4760 static INLINE
unsigned
4764 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4765 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4766 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4767 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
4768 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
4769 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
4770 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4774 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4775 considering charsets/registries). They do if they specify the same
4776 family, point size, weight, width, slant, and fontset. Both LFACE1
4777 and LFACE2 must be fully-specified. */
4780 lface_same_font_attributes_p (lface1
, lface2
)
4781 Lisp_Object
*lface1
, *lface2
;
4783 xassert (lface_fully_specified_p (lface1
)
4784 && lface_fully_specified_p (lface2
));
4785 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4786 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4787 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4788 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4789 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
4790 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4791 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4792 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4793 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
4794 && STRINGP (lface2
[LFACE_FONT_INDEX
])
4795 && xstricmp (XSTRING (lface1
[LFACE_FONT_INDEX
])->data
,
4796 XSTRING (lface2
[LFACE_FONT_INDEX
])->data
))));
4801 /***********************************************************************
4803 ***********************************************************************/
4805 /* Allocate and return a new realized face for Lisp face attribute
4808 static struct face
*
4809 make_realized_face (attr
)
4812 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4813 bzero (face
, sizeof *face
);
4814 face
->ascii_face
= face
;
4815 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4820 /* Free realized face FACE, including its X resources. FACE may
4824 free_realized_face (f
, face
)
4830 #ifdef HAVE_WINDOW_SYSTEM
4831 if (FRAME_WINDOW_P (f
))
4833 /* Free fontset of FACE if it is ASCII face. */
4834 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4835 free_face_fontset (f
, face
);
4838 x_free_gc (f
, face
->gc
);
4842 free_face_colors (f
, face
);
4843 x_destroy_bitmap (f
, face
->stipple
);
4845 #endif /* HAVE_WINDOW_SYSTEM */
4852 /* Prepare face FACE for subsequent display on frame F. This
4853 allocated GCs if they haven't been allocated yet or have been freed
4854 by clearing the face cache. */
4857 prepare_face_for_display (f
, face
)
4861 #ifdef HAVE_WINDOW_SYSTEM
4862 xassert (FRAME_WINDOW_P (f
));
4867 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4869 xgcv
.foreground
= face
->foreground
;
4870 xgcv
.background
= face
->background
;
4871 #ifdef HAVE_X_WINDOWS
4872 xgcv
.graphics_exposures
= False
;
4874 /* The font of FACE may be null if we couldn't load it. */
4877 #ifdef HAVE_X_WINDOWS
4878 xgcv
.font
= face
->font
->fid
;
4881 xgcv
.font
= face
->font
;
4884 xgcv
.font
= face
->font
;
4890 #ifdef HAVE_X_WINDOWS
4893 xgcv
.fill_style
= FillOpaqueStippled
;
4894 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4895 mask
|= GCFillStyle
| GCStipple
;
4898 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4901 #endif /* HAVE_WINDOW_SYSTEM */
4905 /***********************************************************************
4907 ***********************************************************************/
4909 /* Return a new face cache for frame F. */
4911 static struct face_cache
*
4915 struct face_cache
*c
;
4918 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4919 bzero (c
, sizeof *c
);
4920 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4921 c
->buckets
= (struct face
**) xmalloc (size
);
4922 bzero (c
->buckets
, size
);
4924 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4930 /* Clear out all graphics contexts for all realized faces, except for
4931 the basic faces. This should be done from time to time just to avoid
4932 keeping too many graphics contexts that are no longer needed. */
4936 struct face_cache
*c
;
4938 if (c
&& FRAME_WINDOW_P (c
->f
))
4940 #ifdef HAVE_WINDOW_SYSTEM
4942 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4944 struct face
*face
= c
->faces_by_id
[i
];
4945 if (face
&& face
->gc
)
4947 x_free_gc (c
->f
, face
->gc
);
4951 #endif /* HAVE_WINDOW_SYSTEM */
4956 /* Free all realized faces in face cache C, including basic faces. C
4957 may be null. If faces are freed, make sure the frame's current
4958 matrix is marked invalid, so that a display caused by an expose
4959 event doesn't try to use faces we destroyed. */
4962 free_realized_faces (c
)
4963 struct face_cache
*c
;
4968 struct frame
*f
= c
->f
;
4970 /* We must block input here because we can't process X events
4971 safely while only some faces are freed, or when the frame's
4972 current matrix still references freed faces. */
4975 for (i
= 0; i
< c
->used
; ++i
)
4977 free_realized_face (f
, c
->faces_by_id
[i
]);
4978 c
->faces_by_id
[i
] = NULL
;
4982 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4983 bzero (c
->buckets
, size
);
4985 /* Must do a thorough redisplay the next time. Mark current
4986 matrices as invalid because they will reference faces freed
4987 above. This function is also called when a frame is
4988 destroyed. In this case, the root window of F is nil. */
4989 if (WINDOWP (f
->root_window
))
4991 clear_current_matrices (f
);
4992 ++windows_or_buffers_changed
;
5000 /* Free all faces realized for multibyte characters on frame F that
5004 free_realized_multibyte_face (f
, fontset
)
5008 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5012 /* We must block input here because we can't process X events safely
5013 while only some faces are freed, or when the frame's current
5014 matrix still references freed faces. */
5017 for (i
= 0; i
< cache
->used
; i
++)
5019 face
= cache
->faces_by_id
[i
];
5021 && face
!= face
->ascii_face
5022 && face
->fontset
== fontset
)
5024 uncache_face (cache
, face
);
5025 free_realized_face (f
, face
);
5029 /* Must do a thorough redisplay the next time. Mark current
5030 matrices as invalid because they will reference faces freed
5031 above. This function is also called when a frame is destroyed.
5032 In this case, the root window of F is nil. */
5033 if (WINDOWP (f
->root_window
))
5035 clear_current_matrices (f
);
5036 ++windows_or_buffers_changed
;
5043 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5044 This is done after attributes of a named face have been changed,
5045 because we can't tell which realized faces depend on that face. */
5048 free_all_realized_faces (frame
)
5054 FOR_EACH_FRAME (rest
, frame
)
5055 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5058 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5062 /* Free face cache C and faces in it, including their X resources. */
5066 struct face_cache
*c
;
5070 free_realized_faces (c
);
5072 xfree (c
->faces_by_id
);
5078 /* Cache realized face FACE in face cache C. HASH is the hash value
5079 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5080 collision list of the face hash table of C. This is done because
5081 otherwise lookup_face would find FACE for every character, even if
5082 faces with the same attributes but for specific characters exist. */
5085 cache_face (c
, face
, hash
)
5086 struct face_cache
*c
;
5090 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5094 if (face
->fontset
>= 0)
5096 struct face
*last
= c
->buckets
[i
];
5107 c
->buckets
[i
] = face
;
5108 face
->prev
= face
->next
= NULL
;
5114 face
->next
= c
->buckets
[i
];
5116 face
->next
->prev
= face
;
5117 c
->buckets
[i
] = face
;
5120 /* Find a free slot in C->faces_by_id and use the index of the free
5121 slot as FACE->id. */
5122 for (i
= 0; i
< c
->used
; ++i
)
5123 if (c
->faces_by_id
[i
] == NULL
)
5127 /* Maybe enlarge C->faces_by_id. */
5128 if (i
== c
->used
&& c
->used
== c
->size
)
5130 int new_size
= 2 * c
->size
;
5131 int sz
= new_size
* sizeof *c
->faces_by_id
;
5132 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5137 /* Check that FACE got a unique id. */
5142 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5143 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5149 #endif /* GLYPH_DEBUG */
5151 c
->faces_by_id
[i
] = face
;
5157 /* Remove face FACE from cache C. */
5160 uncache_face (c
, face
)
5161 struct face_cache
*c
;
5164 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5167 face
->prev
->next
= face
->next
;
5169 c
->buckets
[i
] = face
->next
;
5172 face
->next
->prev
= face
->prev
;
5174 c
->faces_by_id
[face
->id
] = NULL
;
5175 if (face
->id
== c
->used
)
5180 /* Look up a realized face with face attributes ATTR in the face cache
5181 of frame F. The face will be used to display character C. Value
5182 is the ID of the face found. If no suitable face is found, realize
5183 a new one. In that case, if C is a multibyte character, BASE_FACE
5184 is a face that has the same attributes. */
5187 lookup_face (f
, attr
, c
, base_face
)
5191 struct face
*base_face
;
5193 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5198 xassert (cache
!= NULL
);
5199 check_lface_attrs (attr
);
5201 /* Look up ATTR in the face cache. */
5202 hash
= lface_hash (attr
);
5203 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5205 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5206 if (face
->hash
== hash
5207 && (!FRAME_WINDOW_P (f
)
5208 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5209 && lface_equal_p (face
->lface
, attr
))
5212 /* If not found, realize a new face. */
5214 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5217 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5219 /* When this function is called from face_for_char (in this case, C is
5220 a multibyte character), a fontset of a face returned by
5221 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5222 C) is not sutisfied. The fontset is set for this face by
5223 face_for_char later. */
5225 if (FRAME_WINDOW_P (f
))
5226 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5228 #endif /* GLYPH_DEBUG */
5234 /* Return the face id of the realized face for named face SYMBOL on
5235 frame F suitable for displaying character C. Value is -1 if the
5236 face couldn't be determined, which might happen if the default face
5237 isn't realized and cannot be realized. */
5240 lookup_named_face (f
, symbol
, c
)
5245 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5246 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5247 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5249 if (default_face
== NULL
)
5251 if (!realize_basic_faces (f
))
5253 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5256 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5257 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5258 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5259 return lookup_face (f
, attrs
, c
, NULL
);
5263 /* Return the ID of the realized ASCII face of Lisp face with ID
5264 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5267 ascii_face_of_lisp_face (f
, lface_id
)
5273 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5275 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5276 face_id
= lookup_named_face (f
, face_name
, 0);
5285 /* Return a face for charset ASCII that is like the face with id
5286 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5287 STEPS < 0 means larger. Value is the id of the face. */
5290 smaller_face (f
, face_id
, steps
)
5294 #ifdef HAVE_WINDOW_SYSTEM
5296 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5297 int pt
, last_pt
, last_height
;
5300 struct face
*new_face
;
5302 /* If not called for an X frame, just return the original face. */
5303 if (FRAME_TERMCAP_P (f
))
5306 /* Try in increments of 1/2 pt. */
5307 delta
= steps
< 0 ? 5 : -5;
5308 steps
= abs (steps
);
5310 face
= FACE_FROM_ID (f
, face_id
);
5311 bcopy (face
->lface
, attrs
, sizeof attrs
);
5312 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5313 new_face_id
= face_id
;
5314 last_height
= FONT_HEIGHT (face
->font
);
5318 /* Give up if we cannot find a font within 10pt. */
5319 && abs (last_pt
- pt
) < 100)
5321 /* Look up a face for a slightly smaller/larger font. */
5323 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5324 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5325 new_face
= FACE_FROM_ID (f
, new_face_id
);
5327 /* If height changes, count that as one step. */
5328 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5329 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5332 last_height
= FONT_HEIGHT (new_face
->font
);
5339 #else /* not HAVE_WINDOW_SYSTEM */
5343 #endif /* not HAVE_WINDOW_SYSTEM */
5347 /* Return a face for charset ASCII that is like the face with id
5348 FACE_ID on frame F, but has height HEIGHT. */
5351 face_with_height (f
, face_id
, height
)
5356 #ifdef HAVE_WINDOW_SYSTEM
5358 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5360 if (FRAME_TERMCAP_P (f
)
5364 face
= FACE_FROM_ID (f
, face_id
);
5365 bcopy (face
->lface
, attrs
, sizeof attrs
);
5366 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5367 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5368 #endif /* HAVE_WINDOW_SYSTEM */
5374 /* Return the face id of the realized face for named face SYMBOL on
5375 frame F suitable for displaying character C, and use attributes of
5376 the face FACE_ID for attributes that aren't completely specified by
5377 SYMBOL. This is like lookup_named_face, except that the default
5378 attributes come from FACE_ID, not from the default face. FACE_ID
5379 is assumed to be already realized. */
5382 lookup_derived_face (f
, symbol
, c
, face_id
)
5388 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5389 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5390 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5395 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5396 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5397 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5398 return lookup_face (f
, attrs
, c
, default_face
);
5403 /***********************************************************************
5405 ***********************************************************************/
5407 DEFUN ("internal-set-font-selection-order",
5408 Finternal_set_font_selection_order
,
5409 Sinternal_set_font_selection_order
, 1, 1, 0,
5410 "Set font selection order for face font selection to ORDER.\n\
5411 ORDER must be a list of length 4 containing the symbols `:width',\n\
5412 `:height', `:weight', and `:slant'. Face attributes appearing\n\
5413 first in ORDER are matched first, e.g. if `:height' appears before\n\
5414 `:weight' in ORDER, font selection first tries to find a font with\n\
5415 a suitable height, and then tries to match the font weight.\n\
5422 int indices
[DIM (font_sort_order
)];
5424 CHECK_LIST (order
, 0);
5425 bzero (indices
, sizeof indices
);
5429 CONSP (list
) && i
< DIM (indices
);
5430 list
= XCDR (list
), ++i
)
5432 Lisp_Object attr
= XCAR (list
);
5435 if (EQ (attr
, QCwidth
))
5437 else if (EQ (attr
, QCheight
))
5438 xlfd
= XLFD_POINT_SIZE
;
5439 else if (EQ (attr
, QCweight
))
5441 else if (EQ (attr
, QCslant
))
5446 if (indices
[i
] != 0)
5451 if (!NILP (list
) || i
!= DIM (indices
))
5452 signal_error ("Invalid font sort order", order
);
5453 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5454 if (indices
[i
] == 0)
5455 signal_error ("Invalid font sort order", order
);
5457 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5459 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5460 free_all_realized_faces (Qnil
);
5467 DEFUN ("internal-set-alternative-font-family-alist",
5468 Finternal_set_alternative_font_family_alist
,
5469 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5470 "Define alternative font families to try in face font selection.\n\
5471 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5472 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
5473 be found. Value is ALIST.")
5477 CHECK_LIST (alist
, 0);
5478 Vface_alternative_font_family_alist
= alist
;
5479 free_all_realized_faces (Qnil
);
5484 DEFUN ("internal-set-alternative-font-registry-alist",
5485 Finternal_set_alternative_font_registry_alist
,
5486 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5487 "Define alternative font registries to try in face font selection.\n\
5488 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5489 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can\n\
5490 be found. Value is ALIST.")
5494 CHECK_LIST (alist
, 0);
5495 Vface_alternative_font_registry_alist
= alist
;
5496 free_all_realized_faces (Qnil
);
5501 #ifdef HAVE_WINDOW_SYSTEM
5503 /* Value is non-zero if FONT is the name of a scalable font. The
5504 X11R6 XLFD spec says that point size, pixel size, and average width
5505 are zero for scalable fonts. Intlfonts contain at least one
5506 scalable font ("*-muleindian-1") for which this isn't true, so we
5507 just test average width. */
5510 font_scalable_p (font
)
5511 struct font_name
*font
;
5513 char *s
= font
->fields
[XLFD_AVGWIDTH
];
5514 return (*s
== '0' && *(s
+ 1) == '\0')
5516 /* Windows implementation of XLFD is slightly broken for backward
5517 compatibility with previous broken versions, so test for
5518 wildcards as well as 0. */
5525 /* Ignore the difference of font point size less than this value. */
5527 #define FONT_POINT_SIZE_QUANTUM 5
5529 /* Value is non-zero if FONT1 is a better match for font attributes
5530 VALUES than FONT2. VALUES is an array of face attribute values in
5531 font sort order. COMPARE_PT_P zero means don't compare point
5532 sizes. AVGWIDTH, if not zero, is a specified font average width
5536 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
5538 struct font_name
*font1
, *font2
;
5539 int compare_pt_p
, avgwidth
;
5543 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5545 int xlfd_idx
= font_sort_order
[i
];
5547 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
5549 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
5550 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
5552 if (xlfd_idx
== XLFD_POINT_SIZE
5553 && abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
5555 if (delta1
> delta2
)
5557 else if (delta1
< delta2
)
5561 /* The difference may be equal because, e.g., the face
5562 specifies `italic' but we have only `regular' and
5563 `oblique'. Prefer `oblique' in this case. */
5564 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5565 && font1
->numeric
[xlfd_idx
] > values
[i
]
5566 && font2
->numeric
[xlfd_idx
] < values
[i
])
5574 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
5575 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
5576 if (delta1
> delta2
)
5578 else if (delta1
< delta2
)
5582 return font1
->registry_priority
< font2
->registry_priority
;
5586 /* Value is non-zero if FONT is an exact match for face attributes in
5587 SPECIFIED. SPECIFIED is an array of face attribute values in font
5588 sort order. AVGWIDTH, if non-zero, is an average width to compare
5592 exact_face_match_p (specified
, font
, avgwidth
)
5594 struct font_name
*font
;
5599 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5600 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5603 return (i
== DIM (font_sort_order
)
5605 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
5609 /* Value is the name of a scaled font, generated from scalable font
5610 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5611 Value is allocated from heap. */
5614 build_scalable_font_name (f
, font
, specified_pt
)
5616 struct font_name
*font
;
5619 char point_size
[20], pixel_size
[20];
5621 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5624 /* If scalable font is for a specific resolution, compute
5625 the point size we must specify from the resolution of
5626 the display and the specified resolution of the font. */
5627 if (font
->numeric
[XLFD_RESY
] != 0)
5629 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5630 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
5635 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
5638 /* Set point size of the font. */
5639 sprintf (point_size
, "%d", (int) pt
);
5640 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5641 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5643 /* Set pixel size. */
5644 sprintf (pixel_size
, "%d", pixel_value
);
5645 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5646 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5648 /* If font doesn't specify its resolution, use the
5649 resolution of the display. */
5650 if (font
->numeric
[XLFD_RESY
] == 0)
5653 sprintf (buffer
, "%d", (int) resy
);
5654 font
->fields
[XLFD_RESY
] = buffer
;
5655 font
->numeric
[XLFD_RESY
] = resy
;
5658 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5661 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5662 sprintf (buffer
, "%d", resx
);
5663 font
->fields
[XLFD_RESX
] = buffer
;
5664 font
->numeric
[XLFD_RESX
] = resx
;
5667 return build_font_name (font
);
5671 /* Value is non-zero if we are allowed to use scalable font FONT. We
5672 can't run a Lisp function here since this function may be called
5673 with input blocked. */
5676 may_use_scalable_font_p (font
, name
)
5677 struct font_name
*font
;
5680 if (EQ (Vscalable_fonts_allowed
, Qt
))
5682 else if (CONSP (Vscalable_fonts_allowed
))
5684 Lisp_Object tail
, regexp
;
5686 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5688 regexp
= XCAR (tail
);
5689 if (STRINGP (regexp
)
5690 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
5700 /* Return the name of the best matching font for face attributes ATTRS
5701 in the array of font_name structures FONTS which contains NFONTS
5702 elements. WIDTH_RATIO is a factor with which to multiply average
5703 widths if ATTRS specifies such a width.
5705 Value is a font name which is allocated from the heap. FONTS is
5706 freed by this function. */
5709 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
)
5712 struct font_name
*fonts
;
5717 struct font_name
*best
;
5720 int exact_p
, avgwidth
;
5725 /* Make specified font attributes available in `specified',
5726 indexed by sort order. */
5727 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5729 int xlfd_idx
= font_sort_order
[i
];
5731 if (xlfd_idx
== XLFD_SWIDTH
)
5732 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5733 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5734 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5735 else if (xlfd_idx
== XLFD_WEIGHT
)
5736 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5737 else if (xlfd_idx
== XLFD_SLANT
)
5738 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5743 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
5745 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
5749 /* Start with the first non-scalable font in the list. */
5750 for (i
= 0; i
< nfonts
; ++i
)
5751 if (!font_scalable_p (fonts
+ i
))
5754 /* Find the best match among the non-scalable fonts. */
5759 for (i
= 1; i
< nfonts
; ++i
)
5760 if (!font_scalable_p (fonts
+ i
)
5761 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
5765 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
5774 /* Unless we found an exact match among non-scalable fonts, see if
5775 we can find a better match among scalable fonts. */
5778 /* A scalable font is better if
5780 1. its weight, slant, swidth attributes are better, or.
5782 2. the best non-scalable font doesn't have the required
5783 point size, and the scalable fonts weight, slant, swidth
5786 int non_scalable_has_exact_height_p
;
5788 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5789 non_scalable_has_exact_height_p
= 1;
5791 non_scalable_has_exact_height_p
= 0;
5793 for (i
= 0; i
< nfonts
; ++i
)
5794 if (font_scalable_p (fonts
+ i
))
5797 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
5798 || (!non_scalable_has_exact_height_p
5799 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
5804 if (font_scalable_p (best
))
5805 font_name
= build_scalable_font_name (f
, best
, pt
);
5807 font_name
= build_font_name (best
);
5809 /* Free font_name structures. */
5810 free_font_names (fonts
, nfonts
);
5816 /* Try to get a list of fonts on frame F with font family FAMILY and
5817 registry/encoding REGISTRY. Return in *FONTS a pointer to a vector
5818 of font_name structures for the fonts matched. Value is the number
5822 try_font_list (f
, attrs
, pattern
, family
, registry
, fonts
)
5825 Lisp_Object pattern
, family
, registry
;
5826 struct font_name
**fonts
;
5830 if (NILP (family
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
5831 family
= attrs
[LFACE_FAMILY_INDEX
];
5833 nfonts
= font_list (f
, pattern
, family
, registry
, fonts
);
5834 if (nfonts
== 0 && !NILP (family
))
5838 /* Try alternative font families. */
5839 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
5841 for (alter
= XCDR (alter
);
5842 CONSP (alter
) && nfonts
== 0;
5843 alter
= XCDR (alter
))
5845 if (STRINGP (XCAR (alter
)))
5846 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
5849 /* Try font family of the default face or "fixed". */
5852 struct face
*dflt
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5854 family
= dflt
->lface
[LFACE_FAMILY_INDEX
];
5856 family
= build_string ("fixed");
5857 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
5860 /* Try any family with the given registry. */
5862 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
5869 /* Return the fontset id of the base fontset name or alias name given
5870 by the fontset attribute of ATTRS. Value is -1 if the fontset
5871 attribute of ATTRS doesn't name a fontset. */
5874 face_fontset (attrs
)
5879 name
= attrs
[LFACE_FONT_INDEX
];
5880 if (!STRINGP (name
))
5882 return fs_query_fontset (name
, 0);
5886 /* Choose a name of font to use on frame F to display character C with
5887 Lisp face attributes specified by ATTRS. The font name is
5888 determined by the font-related attributes in ATTRS and the name
5889 pattern for C in FONTSET. Value is the font name which is
5890 allocated from the heap and must be freed by the caller, or NULL if
5891 we can get no information about the font name of C. It is assured
5892 that we always get some information for a single byte
5896 choose_face_font (f
, attrs
, fontset
, c
)
5901 Lisp_Object pattern
;
5902 char *font_name
= NULL
;
5903 struct font_name
*fonts
;
5904 int nfonts
, width_ratio
;
5906 /* Get (foundry and) family name and registry (and encoding) name of
5908 pattern
= fontset_font_pattern (f
, fontset
, c
);
5911 xassert (!SINGLE_BYTE_CHAR_P (c
));
5914 /* If what we got is a name pattern, return it. */
5915 if (STRINGP (pattern
))
5916 return xstrdup (XSTRING (pattern
)->data
);
5918 /* Family name may be specified both in ATTRS and car part of
5919 PATTERN. The former has higher priority if C is a single byte
5921 if (STRINGP (attrs
[LFACE_FAMILY_INDEX
])
5922 && SINGLE_BYTE_CHAR_P (c
))
5923 XCAR (pattern
) = Qnil
;
5925 /* Get a list of fonts matching that pattern and choose the
5926 best match for the specified face attributes from it. */
5927 nfonts
= try_font_list (f
, attrs
, Qnil
, XCAR (pattern
), XCDR (pattern
),
5929 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
5931 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
5932 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
);
5936 #endif /* HAVE_WINDOW_SYSTEM */
5940 /***********************************************************************
5942 ***********************************************************************/
5944 /* Realize basic faces on frame F. Value is zero if frame parameters
5945 of F don't contain enough information needed to realize the default
5949 realize_basic_faces (f
)
5954 /* Block input there so that we won't be surprised by an X expose
5955 event, for instance without having the faces set up. */
5958 if (realize_default_face (f
))
5960 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5961 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5962 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
5963 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5964 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5965 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5966 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5967 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5968 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5970 /* Reflect changes in the `menu' face in menu bars. */
5971 if (menu_face_change_count
)
5973 menu_face_change_count
= 0;
5974 #ifdef USE_X_TOOLKIT
5975 x_set_menu_face_resources (f
);
5987 /* Realize the default face on frame F. If the face is not fully
5988 specified, make it fully-specified. Attributes of the default face
5989 that are not explicitly specified are taken from frame parameters. */
5992 realize_default_face (f
)
5995 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5997 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5998 Lisp_Object frame_font
;
6001 /* If the `default' face is not yet known, create it. */
6002 lface
= lface_from_face_name (f
, Qdefault
, 0);
6006 XSETFRAME (frame
, f
);
6007 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6010 #ifdef HAVE_WINDOW_SYSTEM
6011 if (FRAME_WINDOW_P (f
))
6013 /* Set frame_font to the value of the `font' frame parameter. */
6014 frame_font
= Fassq (Qfont
, f
->param_alist
);
6015 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6016 frame_font
= XCDR (frame_font
);
6017 set_lface_from_font_name (f
, lface
, frame_font
, 1, 1);
6019 #endif /* HAVE_WINDOW_SYSTEM */
6021 if (!FRAME_WINDOW_P (f
))
6023 LFACE_FAMILY (lface
) = build_string ("default");
6024 LFACE_SWIDTH (lface
) = Qnormal
;
6025 LFACE_HEIGHT (lface
) = make_number (1);
6026 LFACE_WEIGHT (lface
) = Qnormal
;
6027 LFACE_SLANT (lface
) = Qnormal
;
6028 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6031 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6032 LFACE_UNDERLINE (lface
) = Qnil
;
6034 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6035 LFACE_OVERLINE (lface
) = Qnil
;
6037 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6038 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6040 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6041 LFACE_BOX (lface
) = Qnil
;
6043 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6044 LFACE_INVERSE (lface
) = Qnil
;
6046 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6048 /* This function is called so early that colors are not yet
6049 set in the frame parameter list. */
6050 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6052 if (CONSP (color
) && STRINGP (XCDR (color
)))
6053 LFACE_FOREGROUND (lface
) = XCDR (color
);
6054 else if (FRAME_WINDOW_P (f
))
6056 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6057 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6062 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6064 /* This function is called so early that colors are not yet
6065 set in the frame parameter list. */
6066 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6067 if (CONSP (color
) && STRINGP (XCDR (color
)))
6068 LFACE_BACKGROUND (lface
) = XCDR (color
);
6069 else if (FRAME_WINDOW_P (f
))
6071 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6072 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6077 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6078 LFACE_STIPPLE (lface
) = Qnil
;
6080 /* Realize the face; it must be fully-specified now. */
6081 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6082 check_lface (lface
);
6083 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6084 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6089 /* Realize basic faces other than the default face in face cache C.
6090 SYMBOL is the face name, ID is the face id the realized face must
6091 have. The default face must have been realized already. */
6094 realize_named_face (f
, symbol
, id
)
6099 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6100 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6101 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6102 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6103 struct face
*new_face
;
6105 /* The default face must exist and be fully specified. */
6106 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6107 check_lface_attrs (attrs
);
6108 xassert (lface_fully_specified_p (attrs
));
6110 /* If SYMBOL isn't know as a face, create it. */
6114 XSETFRAME (frame
, f
);
6115 lface
= Finternal_make_lisp_face (symbol
, frame
);
6118 /* Merge SYMBOL's face with the default face. */
6119 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6120 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
6122 /* Realize the face. */
6123 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6127 /* Realize the fully-specified face with attributes ATTRS in face
6128 cache CACHE for character C. If C is a multibyte character,
6129 BASE_FACE is a face that has the same attributes. Otherwise,
6130 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6131 ID of face to remove before caching the new face. Value is a
6132 pointer to the newly created realized face. */
6134 static struct face
*
6135 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6136 struct face_cache
*cache
;
6139 struct face
*base_face
;
6144 /* LFACE must be fully specified. */
6145 xassert (cache
!= NULL
);
6146 check_lface_attrs (attrs
);
6148 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
6150 /* Remove the former face. */
6151 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
6152 uncache_face (cache
, former_face
);
6153 free_realized_face (cache
->f
, former_face
);
6156 if (FRAME_WINDOW_P (cache
->f
))
6157 face
= realize_x_face (cache
, attrs
, c
, base_face
);
6158 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
6159 face
= realize_tty_face (cache
, attrs
, c
);
6163 /* Insert the new face. */
6164 cache_face (cache
, face
, lface_hash (attrs
));
6165 #ifdef HAVE_WINDOW_SYSTEM
6166 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
6167 load_face_font (cache
->f
, face
, c
);
6168 #endif /* HAVE_WINDOW_SYSTEM */
6173 /* Realize the fully-specified face with attributes ATTRS in face
6174 cache CACHE for character C. Do it for X frame CACHE->f. If C is
6175 a multibyte character, BASE_FACE is a face that has the same
6176 attributes. Otherwise, BASE_FACE is ignored. If the new face
6177 doesn't share font with the default face, a fontname is allocated
6178 from the heap and set in `font_name' of the new face, but it is not
6179 yet loaded here. Value is a pointer to the newly created realized
6182 static struct face
*
6183 realize_x_face (cache
, attrs
, c
, base_face
)
6184 struct face_cache
*cache
;
6187 struct face
*base_face
;
6189 #ifdef HAVE_WINDOW_SYSTEM
6190 struct face
*face
, *default_face
;
6192 Lisp_Object stipple
, overline
, strike_through
, box
;
6194 xassert (FRAME_WINDOW_P (cache
->f
));
6195 xassert (SINGLE_BYTE_CHAR_P (c
)
6198 /* Allocate a new realized face. */
6199 face
= make_realized_face (attrs
);
6203 /* If C is a multibyte character, we share all face attirbutes with
6204 BASE_FACE including the realized fontset. But, we must load a
6206 if (!SINGLE_BYTE_CHAR_P (c
))
6208 bcopy (base_face
, face
, sizeof *face
);
6211 /* Don't try to free the colors copied bitwise from BASE_FACE. */
6212 face
->foreground_defaulted_p
= 1;
6213 face
->background_defaulted_p
= 1;
6214 face
->underline_defaulted_p
= 1;
6215 face
->overline_color_defaulted_p
= 1;
6216 face
->strike_through_color_defaulted_p
= 1;
6217 face
->box_color_defaulted_p
= 1;
6219 /* to force realize_face to load font */
6224 /* Now we are realizing a face for ASCII (and unibyte) characters. */
6226 /* Determine the font to use. Most of the time, the font will be
6227 the same as the font of the default face, so try that first. */
6228 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6230 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
6231 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
6233 face
->font
= default_face
->font
;
6234 face
->fontset
= default_face
->fontset
;
6235 face
->font_info_id
= default_face
->font_info_id
;
6236 face
->font_name
= default_face
->font_name
;
6237 face
->ascii_face
= face
;
6239 /* But, as we can't share the fontset, make a new realized
6240 fontset that has the same base fontset as of the default
6243 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
6247 /* If the face attribute ATTRS specifies a fontset, use it as
6248 the base of a new realized fontset. Otherwise, use the same
6249 base fontset as of the default face. The base determines
6250 registry and encoding of a font. It may also determine
6251 foundry and family. The other fields of font name pattern
6252 are constructed from ATTRS. */
6253 int fontset
= face_fontset (attrs
);
6255 if ((fontset
== -1) && default_face
)
6256 fontset
= default_face
->fontset
;
6257 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
6258 face
->font
= NULL
; /* to force realize_face to load font */
6261 /* Load the font if it is specified in ATTRS. This fixes
6262 changing frame font on the Mac. */
6263 if (STRINGP (attrs
[LFACE_FONT_INDEX
]))
6265 struct font_info
*font_info
=
6266 FS_LOAD_FONT (f
, 0, XSTRING (attrs
[LFACE_FONT_INDEX
])->data
, -1);
6268 face
->font
= font_info
->font
;
6273 /* Load colors, and set remaining attributes. */
6275 load_face_colors (f
, face
, attrs
);
6278 box
= attrs
[LFACE_BOX_INDEX
];
6281 /* A simple box of line width 1 drawn in color given by
6283 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
6285 face
->box
= FACE_SIMPLE_BOX
;
6286 face
->box_line_width
= 1;
6288 else if (INTEGERP (box
))
6290 /* Simple box of specified line width in foreground color of the
6292 xassert (XINT (box
) != 0);
6293 face
->box
= FACE_SIMPLE_BOX
;
6294 face
->box_line_width
= XINT (box
);
6295 face
->box_color
= face
->foreground
;
6296 face
->box_color_defaulted_p
= 1;
6298 else if (CONSP (box
))
6300 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
6301 being one of `raised' or `sunken'. */
6302 face
->box
= FACE_SIMPLE_BOX
;
6303 face
->box_color
= face
->foreground
;
6304 face
->box_color_defaulted_p
= 1;
6305 face
->box_line_width
= 1;
6309 Lisp_Object keyword
, value
;
6311 keyword
= XCAR (box
);
6319 if (EQ (keyword
, QCline_width
))
6321 if (INTEGERP (value
) && XINT (value
) != 0)
6322 face
->box_line_width
= XINT (value
);
6324 else if (EQ (keyword
, QCcolor
))
6326 if (STRINGP (value
))
6328 face
->box_color
= load_color (f
, face
, value
,
6330 face
->use_box_color_for_shadows_p
= 1;
6333 else if (EQ (keyword
, QCstyle
))
6335 if (EQ (value
, Qreleased_button
))
6336 face
->box
= FACE_RAISED_BOX
;
6337 else if (EQ (value
, Qpressed_button
))
6338 face
->box
= FACE_SUNKEN_BOX
;
6343 /* Text underline, overline, strike-through. */
6345 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
6347 /* Use default color (same as foreground color). */
6348 face
->underline_p
= 1;
6349 face
->underline_defaulted_p
= 1;
6350 face
->underline_color
= 0;
6352 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
6354 /* Use specified color. */
6355 face
->underline_p
= 1;
6356 face
->underline_defaulted_p
= 0;
6357 face
->underline_color
6358 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
6359 LFACE_UNDERLINE_INDEX
);
6361 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6363 face
->underline_p
= 0;
6364 face
->underline_defaulted_p
= 0;
6365 face
->underline_color
= 0;
6368 overline
= attrs
[LFACE_OVERLINE_INDEX
];
6369 if (STRINGP (overline
))
6371 face
->overline_color
6372 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
6373 LFACE_OVERLINE_INDEX
);
6374 face
->overline_p
= 1;
6376 else if (EQ (overline
, Qt
))
6378 face
->overline_color
= face
->foreground
;
6379 face
->overline_color_defaulted_p
= 1;
6380 face
->overline_p
= 1;
6383 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6384 if (STRINGP (strike_through
))
6386 face
->strike_through_color
6387 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6388 LFACE_STRIKE_THROUGH_INDEX
);
6389 face
->strike_through_p
= 1;
6391 else if (EQ (strike_through
, Qt
))
6393 face
->strike_through_color
= face
->foreground
;
6394 face
->strike_through_color_defaulted_p
= 1;
6395 face
->strike_through_p
= 1;
6398 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6399 if (!NILP (stipple
))
6400 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6402 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
6404 #endif /* HAVE_WINDOW_SYSTEM */
6408 /* Map a specified color of face FACE on frame F to a tty color index.
6409 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6410 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6411 default foreground/background colors. */
6414 map_tty_color (f
, face
, idx
, defaulted
)
6417 enum lface_attribute_index idx
;
6420 Lisp_Object frame
, color
, def
;
6421 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6422 unsigned long default_pixel
, default_other_pixel
, pixel
;
6424 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6428 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6429 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6433 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6434 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6437 XSETFRAME (frame
, f
);
6438 color
= face
->lface
[idx
];
6441 && XSTRING (color
)->size
6442 && CONSP (Vtty_defined_color_alist
)
6443 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6446 /* Associations in tty-defined-color-alist are of the form
6447 (NAME INDEX R G B). We need the INDEX part. */
6448 pixel
= XINT (XCAR (XCDR (def
)));
6451 if (pixel
== default_pixel
&& STRINGP (color
))
6453 pixel
= load_color (f
, face
, color
, idx
);
6455 #if defined (MSDOS) || defined (WINDOWSNT)
6456 /* If the foreground of the default face is the default color,
6457 use the foreground color defined by the frame. */
6459 if (FRAME_MSDOS_P (f
))
6462 if (pixel
== default_pixel
6463 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6466 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6468 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6469 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6472 else if (pixel
== default_other_pixel
)
6475 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6477 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6478 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6484 #endif /* MSDOS or WINDOWSNT */
6488 face
->foreground
= pixel
;
6490 face
->background
= pixel
;
6494 /* Realize the fully-specified face with attributes ATTRS in face
6495 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
6496 pointer to the newly created realized face. */
6498 static struct face
*
6499 realize_tty_face (cache
, attrs
, c
)
6500 struct face_cache
*cache
;
6506 int face_colors_defaulted
= 0;
6507 struct frame
*f
= cache
->f
;
6509 /* Frame must be a termcap frame. */
6510 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6512 /* Allocate a new realized face. */
6513 face
= make_realized_face (attrs
);
6514 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6516 /* Map face attributes to TTY appearances. We map slant to
6517 dimmed text because we want italic text to appear differently
6518 and because dimmed text is probably used infrequently. */
6519 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6520 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6522 if (weight
> XLFD_WEIGHT_MEDIUM
)
6523 face
->tty_bold_p
= 1;
6524 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6525 face
->tty_dim_p
= 1;
6526 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6527 face
->tty_underline_p
= 1;
6528 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6529 face
->tty_reverse_p
= 1;
6531 /* Map color names to color indices. */
6532 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6533 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6535 /* Swap colors if face is inverse-video. If the colors are taken
6536 from the frame colors, they are already inverted, since the
6537 frame-creation function calls x-handle-reverse-video. */
6538 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6540 unsigned long tem
= face
->foreground
;
6541 face
->foreground
= face
->background
;
6542 face
->background
= tem
;
6545 if (tty_suppress_bold_inverse_default_colors_p
6547 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6548 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6549 face
->tty_bold_p
= 0;
6555 DEFUN ("tty-suppress-bold-inverse-default-colors",
6556 Ftty_suppress_bold_inverse_default_colors
,
6557 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6558 "Suppress/allow boldness of faces with inverse default colors.\n\
6559 SUPPRESS non-nil means suppress it.\n\
6560 This affects bold faces on TTYs whose foreground is the default background\n\
6561 color of the display and whose background is the default foreground color.\n\
6562 For such faces, the bold face attribute is ignored if this variable\n\
6565 Lisp_Object suppress
;
6567 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6568 ++face_change_count
;
6574 /***********************************************************************
6576 ***********************************************************************/
6578 /* Return the ID of the face to use to display character CH with face
6579 property PROP on frame F in current_buffer. */
6582 compute_char_face (f
, ch
, prop
)
6589 if (NILP (current_buffer
->enable_multibyte_characters
))
6594 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6595 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
6599 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6600 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6601 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6602 merge_face_vector_with_property (f
, attrs
, prop
);
6603 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
6610 /* Return the face ID associated with buffer position POS for
6611 displaying ASCII characters. Return in *ENDPTR the position at
6612 which a different face is needed, as far as text properties and
6613 overlays are concerned. W is a window displaying current_buffer.
6615 REGION_BEG, REGION_END delimit the region, so it can be
6618 LIMIT is a position not to scan beyond. That is to limit the time
6619 this function can take.
6621 If MOUSE is non-zero, use the character's mouse-face, not its face.
6623 The face returned is suitable for displaying ASCII characters. */
6626 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6627 endptr
, limit
, mouse
)
6630 int region_beg
, region_end
;
6635 struct frame
*f
= XFRAME (w
->frame
);
6636 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6637 Lisp_Object prop
, position
;
6639 Lisp_Object
*overlay_vec
;
6642 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6643 Lisp_Object limit1
, end
;
6644 struct face
*default_face
;
6646 /* W must display the current buffer. We could write this function
6647 to use the frame and buffer of W, but right now it doesn't. */
6648 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6650 XSETFRAME (frame
, f
);
6651 XSETFASTINT (position
, pos
);
6654 if (pos
< region_beg
&& region_beg
< endpos
)
6655 endpos
= region_beg
;
6657 /* Get the `face' or `mouse_face' text property at POS, and
6658 determine the next position at which the property changes. */
6659 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6660 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6661 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6663 endpos
= XINT (end
);
6665 /* Look at properties from overlays. */
6670 /* First try with room for 40 overlays. */
6672 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6673 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6674 &next_overlay
, NULL
, 0);
6676 /* If there are more than 40, make enough space for all, and try
6678 if (noverlays
> len
)
6681 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6682 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6683 &next_overlay
, NULL
, 0);
6686 if (next_overlay
< endpos
)
6687 endpos
= next_overlay
;
6692 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6694 /* Optimize common cases where we can use the default face. */
6697 && !(pos
>= region_beg
&& pos
< region_end
))
6698 return DEFAULT_FACE_ID
;
6700 /* Begin with attributes from the default face. */
6701 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6703 /* Merge in attributes specified via text properties. */
6705 merge_face_vector_with_property (f
, attrs
, prop
);
6707 /* Now merge the overlay data. */
6708 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6709 for (i
= 0; i
< noverlays
; i
++)
6714 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6716 merge_face_vector_with_property (f
, attrs
, prop
);
6718 oend
= OVERLAY_END (overlay_vec
[i
]);
6719 oendpos
= OVERLAY_POSITION (oend
);
6720 if (oendpos
< endpos
)
6724 /* If in the region, merge in the region face. */
6725 if (pos
>= region_beg
&& pos
< region_end
)
6727 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6728 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6730 if (region_end
< endpos
)
6731 endpos
= region_end
;
6736 /* Look up a realized face with the given face attributes,
6737 or realize a new one for ASCII characters. */
6738 return lookup_face (f
, attrs
, 0, NULL
);
6742 /* Compute the face at character position POS in Lisp string STRING on
6743 window W, for ASCII characters.
6745 If STRING is an overlay string, it comes from position BUFPOS in
6746 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6747 not an overlay string. W must display the current buffer.
6748 REGION_BEG and REGION_END give the start and end positions of the
6749 region; both are -1 if no region is visible.
6751 BASE_FACE_ID is the id of a face to merge with. For strings coming
6752 from overlays or the `display' property it is the face at BUFPOS.
6754 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6756 Set *ENDPTR to the next position where to check for faces in
6757 STRING; -1 if the face is constant from POS to the end of the
6760 Value is the id of the face to use. The face returned is suitable
6761 for displaying ASCII characters. */
6764 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6765 region_end
, endptr
, base_face_id
, mouse_p
)
6769 int region_beg
, region_end
;
6771 enum face_id base_face_id
;
6774 Lisp_Object prop
, position
, end
, limit
;
6775 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6776 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6777 struct face
*base_face
;
6778 int multibyte_p
= STRING_MULTIBYTE (string
);
6779 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6781 /* Get the value of the face property at the current position within
6782 STRING. Value is nil if there is no face property. */
6783 XSETFASTINT (position
, pos
);
6784 prop
= Fget_text_property (position
, prop_name
, string
);
6786 /* Get the next position at which to check for faces. Value of end
6787 is nil if face is constant all the way to the end of the string.
6788 Otherwise it is a string position where to check faces next.
6789 Limit is the maximum position up to which to check for property
6790 changes in Fnext_single_property_change. Strings are usually
6791 short, so set the limit to the end of the string. */
6792 XSETFASTINT (limit
, XSTRING (string
)->size
);
6793 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6795 *endptr
= XFASTINT (end
);
6799 base_face
= FACE_FROM_ID (f
, base_face_id
);
6800 xassert (base_face
);
6802 /* Optimize the default case that there is no face property and we
6803 are not in the region. */
6805 && (base_face_id
!= DEFAULT_FACE_ID
6806 /* BUFPOS <= 0 means STRING is not an overlay string, so
6807 that the region doesn't have to be taken into account. */
6809 || bufpos
< region_beg
6810 || bufpos
>= region_end
)
6812 /* We can't realize faces for different charsets differently
6813 if we don't have fonts, so we can stop here if not working
6814 on a window-system frame. */
6815 || !FRAME_WINDOW_P (f
)
6816 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6817 return base_face
->id
;
6819 /* Begin with attributes from the base face. */
6820 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6822 /* Merge in attributes specified via text properties. */
6824 merge_face_vector_with_property (f
, attrs
, prop
);
6826 /* If in the region, merge in the region face. */
6828 && bufpos
>= region_beg
6829 && bufpos
< region_end
)
6831 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6832 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6835 /* Look up a realized face with the given face attributes,
6836 or realize a new one for ASCII characters. */
6837 return lookup_face (f
, attrs
, 0, NULL
);
6842 /***********************************************************************
6844 ***********************************************************************/
6848 /* Print the contents of the realized face FACE to stderr. */
6851 dump_realized_face (face
)
6854 fprintf (stderr
, "ID: %d\n", face
->id
);
6855 #ifdef HAVE_X_WINDOWS
6856 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6858 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6860 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
6861 fprintf (stderr
, "background: 0x%lx (%s)\n",
6863 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
6864 fprintf (stderr
, "font_name: %s (%s)\n",
6866 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
6867 #ifdef HAVE_X_WINDOWS
6868 fprintf (stderr
, "font = %p\n", face
->font
);
6870 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
6871 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6872 fprintf (stderr
, "underline: %d (%s)\n",
6874 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
6875 fprintf (stderr
, "hash: %d\n", face
->hash
);
6876 fprintf (stderr
, "charset: %d\n", face
->charset
);
6880 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
6888 fprintf (stderr
, "font selection order: ");
6889 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6890 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6891 fprintf (stderr
, "\n");
6893 fprintf (stderr
, "alternative fonts: ");
6894 debug_print (Vface_alternative_font_family_alist
);
6895 fprintf (stderr
, "\n");
6897 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6898 Fdump_face (make_number (i
));
6903 CHECK_NUMBER (n
, 0);
6904 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6906 error ("Not a valid face");
6907 dump_realized_face (face
);
6914 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6918 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6919 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6920 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6924 #endif /* GLYPH_DEBUG != 0 */
6928 /***********************************************************************
6930 ***********************************************************************/
6935 Qface
= intern ("face");
6937 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6938 staticpro (&Qbitmap_spec_p
);
6939 Qframe_update_face_colors
= intern ("frame-update-face-colors");
6940 staticpro (&Qframe_update_face_colors
);
6942 /* Lisp face attribute keywords. */
6943 QCfamily
= intern (":family");
6944 staticpro (&QCfamily
);
6945 QCheight
= intern (":height");
6946 staticpro (&QCheight
);
6947 QCweight
= intern (":weight");
6948 staticpro (&QCweight
);
6949 QCslant
= intern (":slant");
6950 staticpro (&QCslant
);
6951 QCunderline
= intern (":underline");
6952 staticpro (&QCunderline
);
6953 QCinverse_video
= intern (":inverse-video");
6954 staticpro (&QCinverse_video
);
6955 QCreverse_video
= intern (":reverse-video");
6956 staticpro (&QCreverse_video
);
6957 QCforeground
= intern (":foreground");
6958 staticpro (&QCforeground
);
6959 QCbackground
= intern (":background");
6960 staticpro (&QCbackground
);
6961 QCstipple
= intern (":stipple");;
6962 staticpro (&QCstipple
);
6963 QCwidth
= intern (":width");
6964 staticpro (&QCwidth
);
6965 QCfont
= intern (":font");
6966 staticpro (&QCfont
);
6967 QCbold
= intern (":bold");
6968 staticpro (&QCbold
);
6969 QCitalic
= intern (":italic");
6970 staticpro (&QCitalic
);
6971 QCoverline
= intern (":overline");
6972 staticpro (&QCoverline
);
6973 QCstrike_through
= intern (":strike-through");
6974 staticpro (&QCstrike_through
);
6975 QCbox
= intern (":box");
6977 QCinherit
= intern (":inherit");
6978 staticpro (&QCinherit
);
6980 /* Symbols used for Lisp face attribute values. */
6981 QCcolor
= intern (":color");
6982 staticpro (&QCcolor
);
6983 QCline_width
= intern (":line-width");
6984 staticpro (&QCline_width
);
6985 QCstyle
= intern (":style");
6986 staticpro (&QCstyle
);
6987 Qreleased_button
= intern ("released-button");
6988 staticpro (&Qreleased_button
);
6989 Qpressed_button
= intern ("pressed-button");
6990 staticpro (&Qpressed_button
);
6991 Qnormal
= intern ("normal");
6992 staticpro (&Qnormal
);
6993 Qultra_light
= intern ("ultra-light");
6994 staticpro (&Qultra_light
);
6995 Qextra_light
= intern ("extra-light");
6996 staticpro (&Qextra_light
);
6997 Qlight
= intern ("light");
6998 staticpro (&Qlight
);
6999 Qsemi_light
= intern ("semi-light");
7000 staticpro (&Qsemi_light
);
7001 Qsemi_bold
= intern ("semi-bold");
7002 staticpro (&Qsemi_bold
);
7003 Qbold
= intern ("bold");
7005 Qextra_bold
= intern ("extra-bold");
7006 staticpro (&Qextra_bold
);
7007 Qultra_bold
= intern ("ultra-bold");
7008 staticpro (&Qultra_bold
);
7009 Qoblique
= intern ("oblique");
7010 staticpro (&Qoblique
);
7011 Qitalic
= intern ("italic");
7012 staticpro (&Qitalic
);
7013 Qreverse_oblique
= intern ("reverse-oblique");
7014 staticpro (&Qreverse_oblique
);
7015 Qreverse_italic
= intern ("reverse-italic");
7016 staticpro (&Qreverse_italic
);
7017 Qultra_condensed
= intern ("ultra-condensed");
7018 staticpro (&Qultra_condensed
);
7019 Qextra_condensed
= intern ("extra-condensed");
7020 staticpro (&Qextra_condensed
);
7021 Qcondensed
= intern ("condensed");
7022 staticpro (&Qcondensed
);
7023 Qsemi_condensed
= intern ("semi-condensed");
7024 staticpro (&Qsemi_condensed
);
7025 Qsemi_expanded
= intern ("semi-expanded");
7026 staticpro (&Qsemi_expanded
);
7027 Qexpanded
= intern ("expanded");
7028 staticpro (&Qexpanded
);
7029 Qextra_expanded
= intern ("extra-expanded");
7030 staticpro (&Qextra_expanded
);
7031 Qultra_expanded
= intern ("ultra-expanded");
7032 staticpro (&Qultra_expanded
);
7033 Qbackground_color
= intern ("background-color");
7034 staticpro (&Qbackground_color
);
7035 Qforeground_color
= intern ("foreground-color");
7036 staticpro (&Qforeground_color
);
7037 Qunspecified
= intern ("unspecified");
7038 staticpro (&Qunspecified
);
7040 Qface_alias
= intern ("face-alias");
7041 staticpro (&Qface_alias
);
7042 Qdefault
= intern ("default");
7043 staticpro (&Qdefault
);
7044 Qtool_bar
= intern ("tool-bar");
7045 staticpro (&Qtool_bar
);
7046 Qregion
= intern ("region");
7047 staticpro (&Qregion
);
7048 Qfringe
= intern ("fringe");
7049 staticpro (&Qfringe
);
7050 Qheader_line
= intern ("header-line");
7051 staticpro (&Qheader_line
);
7052 Qscroll_bar
= intern ("scroll-bar");
7053 staticpro (&Qscroll_bar
);
7054 Qmenu
= intern ("menu");
7056 Qcursor
= intern ("cursor");
7057 staticpro (&Qcursor
);
7058 Qborder
= intern ("border");
7059 staticpro (&Qborder
);
7060 Qmouse
= intern ("mouse");
7061 staticpro (&Qmouse
);
7062 Qtty_color_desc
= intern ("tty-color-desc");
7063 staticpro (&Qtty_color_desc
);
7064 Qtty_color_by_index
= intern ("tty-color-by-index");
7065 staticpro (&Qtty_color_by_index
);
7066 Qtty_color_alist
= intern ("tty-color-alist");
7067 staticpro (&Qtty_color_alist
);
7069 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7070 staticpro (&Vparam_value_alist
);
7071 Vface_alternative_font_family_alist
= Qnil
;
7072 staticpro (&Vface_alternative_font_family_alist
);
7073 Vface_alternative_font_registry_alist
= Qnil
;
7074 staticpro (&Vface_alternative_font_registry_alist
);
7076 defsubr (&Sinternal_make_lisp_face
);
7077 defsubr (&Sinternal_lisp_face_p
);
7078 defsubr (&Sinternal_set_lisp_face_attribute
);
7079 #ifdef HAVE_WINDOW_SYSTEM
7080 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7082 defsubr (&Scolor_gray_p
);
7083 defsubr (&Scolor_supported_p
);
7084 defsubr (&Sinternal_get_lisp_face_attribute
);
7085 defsubr (&Sinternal_lisp_face_attribute_values
);
7086 defsubr (&Sinternal_lisp_face_equal_p
);
7087 defsubr (&Sinternal_lisp_face_empty_p
);
7088 defsubr (&Sinternal_copy_lisp_face
);
7089 defsubr (&Sinternal_merge_in_global_face
);
7090 defsubr (&Sface_font
);
7091 defsubr (&Sframe_face_alist
);
7092 defsubr (&Sinternal_set_font_selection_order
);
7093 defsubr (&Sinternal_set_alternative_font_family_alist
);
7094 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7096 defsubr (&Sdump_face
);
7097 defsubr (&Sshow_face_resources
);
7098 #endif /* GLYPH_DEBUG */
7099 defsubr (&Sclear_face_cache
);
7100 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7102 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7103 defsubr (&Sdump_colors
);
7106 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7107 "*Limit for font matching.\n\
7108 If an integer > 0, font matching functions won't load more than\n\
7109 that number of fonts when searching for a matching font.");
7110 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7112 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7113 "List of global face definitions (for internal use only.)");
7114 Vface_new_frame_defaults
= Qnil
;
7116 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7117 "*Default stipple pattern used on monochrome displays.\n\
7118 This stipple pattern is used on monochrome displays\n\
7119 instead of shades of gray for a face background color.\n\
7120 See `set-face-stipple' for possible values for this variable.");
7121 Vface_default_stipple
= build_string ("gray3");
7123 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7124 "An alist of defined terminal colors and their RGB values.");
7125 Vtty_defined_color_alist
= Qnil
;
7127 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7128 "Allowed scalable fonts.\n\
7129 A value of nil means don't allow any scalable fonts.\n\
7130 A value of t means allow any scalable font.\n\
7131 Otherwise, value must be a list of regular expressions. A font may be\n\
7132 scaled if its name matches a regular expression in the list.");
7133 #if defined (WINDOWSNT) || defined (macintosh)
7134 /* Windows uses mainly truetype fonts, so disallowing scalable fonts
7135 by default limits the fonts available severely. */
7136 Vscalable_fonts_allowed
= Qt
;
7138 Vscalable_fonts_allowed
= Qnil
;
7141 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7142 "List of ignored fonts.\n\
7143 Each element is a regular expression that matches names of fonts to ignore.");
7144 Vface_ignored_fonts
= Qnil
;
7146 #ifdef HAVE_WINDOW_SYSTEM
7147 defsubr (&Sbitmap_spec_p
);
7148 defsubr (&Sx_list_fonts
);
7149 defsubr (&Sinternal_face_x_get_resource
);
7150 defsubr (&Sx_family_fonts
);
7151 defsubr (&Sx_font_family_list
);
7152 #endif /* HAVE_WINDOW_SYSTEM */