1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000 Free Software Foundation.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
25 When using Emacs with X, the display style of characters can be
26 changed by defining `faces'. Each face can specify the following
31 2. Relative proportionate width, aka character set width or set
32 width (swidth), e.g. `semi-compressed'.
34 3. Font height in 1/10pt.
36 4. Font weight, e.g. `bold'.
38 5. Font slant, e.g. `italic'.
44 8. Whether or not characters should be underlined, and in what color.
46 9. Whether or not characters should be displayed in inverse video.
48 10. A background stipple, a bitmap.
50 11. Whether or not characters should be overlined, and in what color.
52 12. Whether or not characters should be strike-through, and in what
55 13. Whether or not a box should be drawn around characters, the box
56 type, and, for simple boxes, in what color.
58 14. Font or fontset pattern, or nil. This is a special attribute.
59 When this attribyte is specified, the face uses a font opened by
60 that pattern as is. In addition, all the other font-related
61 attributes (1st thru 5th) are generated from the opened font name.
62 On the other hand, if one of the other font-related attributes are
63 specified, this attribute is set to nil. In that case, the face
64 doesn't inherit this attribute from the `default' face, and uses a
65 font determined by the other attributes (those may be inherited
66 from the `default' face).
68 15. A face name or list of face names from which to inherit attributes.
70 Faces are frame-local by nature because Emacs allows to define the
71 same named face (face names are symbols) differently for different
72 frames. Each frame has an alist of face definitions for all named
73 faces. The value of a named face in such an alist is a Lisp vector
74 with the symbol `face' in slot 0, and a slot for each of the face
75 attributes mentioned above.
77 There is also a global face alist `Vface_new_frame_defaults'. Face
78 definitions from this list are used to initialize faces of newly
81 A face doesn't have to specify all attributes. Those not specified
82 have a value of `unspecified'. Faces specifying all attributes but
83 the 14th are called `fully-specified'.
88 The display style of a given character in the text is determined by
89 combining several faces. This process is called `face merging'.
90 Any aspect of the display style that isn't specified by overlays or
91 text properties is taken from the `default' face. Since it is made
92 sure that the default face is always fully-specified, face merging
93 always results in a fully-specified face.
98 After all face attributes for a character have been determined by
99 merging faces of that character, that face is `realized'. The
100 realization process maps face attributes to what is physically
101 available on the system where Emacs runs. The result is a
102 `realized face' in form of a struct face which is stored in the
103 face cache of the frame on which it was realized.
105 Face realization is done in the context of the character to display
106 because different fonts may be used for different characters. In
107 other words, for characters that have different font
108 specifications, different realized faces are needed to display
111 Font specification is done by fontsets. See the comment in
112 fontset.c for the details. In the current implementation, all ASCII
113 characters share the same font in a fontset.
115 Faces are at first realized for ASCII characters, and, at that
116 time, assigned a specific realized fontset. Hereafter, we call
117 such a face as `ASCII face'. When a face for a multibyte character
118 is realized, it inherits (thus shares) a fontset of an ASCII face
119 that has the same attributes other than font-related ones.
121 Thus, all realzied face have a realized fontset.
126 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
127 font as ASCII characters. That is because it is expected that
128 unibyte text users specify a font that is suitable both for ASCII
129 and raw 8-bit characters.
134 Font selection tries to find the best available matching font for a
135 given (character, face) combination.
137 If the face specifies a fontset name, that fontset determines a
138 pattern for fonts of the given character. If the face specifies a
139 font name or the other font-related attributes, a fontset is
140 realized from the default fontset. In that case, that
141 specification determines a pattern for ASCII characters and the
142 default fontset determines a pattern for multibyte characters.
144 Available fonts on the system on which Emacs runs are then matched
145 against the font pattern. The result of font selection is the best
146 match for the given face attributes in this font list.
148 Font selection can be influenced by the user.
150 1. The user can specify the relative importance he gives the face
151 attributes width, height, weight, and slant by setting
152 face-font-selection-order (faces.el) to a list of face attribute
153 names. The default is '(:width :height :weight :slant), and means
154 that font selection first tries to find a good match for the font
155 width specified by a face, then---within fonts with that
156 width---tries to find a best match for the specified font height,
159 2. Setting face-font-family-alternatives allows the user to
160 specify alternative font families to try if a family specified by a
163 3. Setting face-font-registry-alternatives allows the user to
164 specify all alternative font registries to try for a face
165 specifying a registry.
167 4. Setting face-ignored-fonts allows the user to ignore specific
171 Character compositition.
173 Usually, the realization process is already finished when Emacs
174 actually reflects the desired glyph matrix on the screen. However,
175 on displaying a composition (sequence of characters to be composed
176 on the screen), a suitable font for the components of the
177 composition is selected and realized while drawing them on the
178 screen, i.e. the realization process is delayed but in principle
182 Initialization of basic faces.
184 The faces `default', `modeline' are considered `basic faces'.
185 When redisplay happens the first time for a newly created frame,
186 basic faces are realized for CHARSET_ASCII. Frame parameters are
187 used to fill in unspecified attributes of the default face. */
190 #include <sys/types.h>
191 #include <sys/stat.h>
196 #ifdef HAVE_WINDOW_SYSTEM
198 #endif /* HAVE_WINDOW_SYSTEM */
200 #ifdef HAVE_X_WINDOWS
204 #include <Xm/XmStrDefs.h>
205 #endif /* USE_MOTIF */
206 #endif /* HAVE_X_WINDOWS */
215 /* Redefine X specifics to W32 equivalents to avoid cluttering the
216 code with #ifdef blocks. */
217 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
218 #define x_display_info w32_display_info
219 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
220 #define check_x check_w32
221 #define x_list_fonts w32_list_fonts
222 #define GCGraphicsExposures 0
223 /* For historic reasons, FONT_WIDTH refers to average width on W32,
224 not maximum as on X. Redefine here. */
225 #define FONT_WIDTH FONT_MAX_WIDTH
226 #endif /* WINDOWSNT */
230 #define x_display_info mac_display_info
231 #define check_x check_mac
233 extern XGCValues
*XCreateGC (void *, WindowPtr
, unsigned long, XGCValues
*);
236 x_create_gc (f
, mask
, xgcv
)
242 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
251 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
256 #include "dispextern.h"
257 #include "blockinput.h"
259 #include "intervals.h"
261 #ifdef HAVE_X_WINDOWS
263 /* Compensate for a bug in Xos.h on some systems, on which it requires
264 time.h. On some such systems, Xos.h tries to redefine struct
265 timeval and struct timezone if USG is #defined while it is
268 #ifdef XOS_NEEDS_TIME_H
274 #else /* not XOS_NEEDS_TIME_H */
276 #endif /* not XOS_NEEDS_TIME_H */
278 #endif /* HAVE_X_WINDOWS */
282 #include "keyboard.h"
285 #define max(A, B) ((A) > (B) ? (A) : (B))
286 #define min(A, B) ((A) < (B) ? (A) : (B))
287 #define abs(X) ((X) < 0 ? -(X) : (X))
290 /* Non-zero if face attribute ATTR is unspecified. */
292 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
294 /* Value is the number of elements of VECTOR. */
296 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
298 /* Make a copy of string S on the stack using alloca. Value is a pointer
301 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
303 /* Make a copy of the contents of Lisp string S on the stack using
304 alloca. Value is a pointer to the copy. */
306 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
308 /* Size of hash table of realized faces in face caches (should be a
311 #define FACE_CACHE_BUCKETS_SIZE 1001
313 /* A definition of XColor for non-X frames. */
315 #ifndef HAVE_X_WINDOWS
320 unsigned short red
, green
, blue
;
326 #endif /* not HAVE_X_WINDOWS */
328 /* Keyword symbols used for face attribute names. */
330 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
331 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
332 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
333 Lisp_Object QCreverse_video
;
334 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
336 /* Symbols used for attribute values. */
338 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
339 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
340 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
341 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
342 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
343 Lisp_Object Qultra_expanded
;
344 Lisp_Object Qreleased_button
, Qpressed_button
;
345 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
346 Lisp_Object Qunspecified
;
348 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
350 /* The name of the function to call when the background of the frame
351 has changed, frame_update_face_colors. */
353 Lisp_Object Qframe_update_face_colors
;
355 /* Names of basic faces. */
357 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
358 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
359 extern Lisp_Object Qmode_line
;
361 /* The symbol `face-alias'. A symbols having that property is an
362 alias for another face. Value of the property is the name of
365 Lisp_Object Qface_alias
;
367 /* Names of frame parameters related to faces. */
369 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
370 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
372 /* Default stipple pattern used on monochrome displays. This stipple
373 pattern is used on monochrome displays instead of shades of gray
374 for a face background color. See `set-face-stipple' for possible
375 values for this variable. */
377 Lisp_Object Vface_default_stipple
;
379 /* Alist of alternative font families. Each element is of the form
380 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
381 try FAMILY1, then FAMILY2, ... */
383 Lisp_Object Vface_alternative_font_family_alist
;
385 /* Alist of alternative font registries. Each element is of the form
386 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
387 loaded, try REGISTRY1, then REGISTRY2, ... */
389 Lisp_Object Vface_alternative_font_registry_alist
;
391 /* Allowed scalable fonts. A value of nil means don't allow any
392 scalable fonts. A value of t means allow the use of any scalable
393 font. Otherwise, value must be a list of regular expressions. A
394 font may be scaled if its name matches a regular expression in the
397 Lisp_Object Vscalable_fonts_allowed
;
399 /* List of regular expressions that matches names of fonts to ignore. */
401 Lisp_Object Vface_ignored_fonts
;
403 /* Maximum number of fonts to consider in font_list. If not an
404 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
406 Lisp_Object Vfont_list_limit
;
407 #define DEFAULT_FONT_LIST_LIMIT 100
409 /* The symbols `foreground-color' and `background-color' which can be
410 used as part of a `face' property. This is for compatibility with
413 Lisp_Object Qforeground_color
, Qbackground_color
;
415 /* The symbols `face' and `mouse-face' used as text properties. */
418 extern Lisp_Object Qmouse_face
;
420 /* Error symbol for wrong_type_argument in load_pixmap. */
422 Lisp_Object Qbitmap_spec_p
;
424 /* Alist of global face definitions. Each element is of the form
425 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
426 is a Lisp vector of face attributes. These faces are used
427 to initialize faces for new frames. */
429 Lisp_Object Vface_new_frame_defaults
;
431 /* The next ID to assign to Lisp faces. */
433 static int next_lface_id
;
435 /* A vector mapping Lisp face Id's to face names. */
437 static Lisp_Object
*lface_id_to_name
;
438 static int lface_id_to_name_size
;
440 /* TTY color-related functions (defined in tty-colors.el). */
442 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
;
444 /* The name of the function used to compute colors on TTYs. */
446 Lisp_Object Qtty_color_alist
;
448 /* An alist of defined terminal colors and their RGB values. */
450 Lisp_Object Vtty_defined_color_alist
;
452 /* Counter for calls to clear_face_cache. If this counter reaches
453 CLEAR_FONT_TABLE_COUNT, and a frame has more than
454 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
456 static int clear_font_table_count
;
457 #define CLEAR_FONT_TABLE_COUNT 100
458 #define CLEAR_FONT_TABLE_NFONTS 10
460 /* Non-zero means face attributes have been changed since the last
461 redisplay. Used in redisplay_internal. */
463 int face_change_count
;
465 /* Incremented for every change in the `menu' face. */
467 int menu_face_change_count
;
469 /* Non-zero means don't display bold text if a face's foreground
470 and background colors are the inverse of the default colors of the
471 display. This is a kluge to suppress `bold black' foreground text
472 which is hard to read on an LCD monitor. */
474 int tty_suppress_bold_inverse_default_colors_p
;
476 /* A list of the form `((x . y))' used to avoid consing in
477 Finternal_set_lisp_face_attribute. */
479 static Lisp_Object Vparam_value_alist
;
481 /* The total number of colors currently allocated. */
484 static int ncolors_allocated
;
485 static int npixmaps_allocated
;
491 /* Function prototypes. */
496 static void map_tty_color
P_ ((struct frame
*, struct face
*,
497 enum lface_attribute_index
, int *));
498 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
499 static int may_use_scalable_font_p
P_ ((struct font_name
*, char *));
500 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
501 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
503 static int first_font_matching
P_ ((struct frame
*f
, char *,
504 struct font_name
*));
505 static int x_face_list_fonts
P_ ((struct frame
*, char *,
506 struct font_name
*, int, int, int));
507 static int font_scalable_p
P_ ((struct font_name
*));
508 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
509 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
510 static unsigned char *xstrlwr
P_ ((unsigned char *));
511 static void signal_error
P_ ((char *, Lisp_Object
));
512 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
513 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
514 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
515 static void free_face_colors
P_ ((struct frame
*, struct face
*));
516 static int face_color_gray_p
P_ ((struct frame
*, char *));
517 static char *build_font_name
P_ ((struct font_name
*));
518 static void free_font_names
P_ ((struct font_name
*, int));
519 static int sorted_font_list
P_ ((struct frame
*, char *,
520 int (*cmpfn
) P_ ((const void *, const void *)),
521 struct font_name
**));
522 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
523 Lisp_Object
, struct font_name
**));
524 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
525 Lisp_Object
, struct font_name
**));
526 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
,
527 Lisp_Object
, Lisp_Object
, struct font_name
**));
528 static int cmp_font_names
P_ ((const void *, const void *));
529 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
530 struct face
*, int));
531 static struct face
*realize_x_face
P_ ((struct face_cache
*,
532 Lisp_Object
*, int, struct face
*));
533 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
534 Lisp_Object
*, int));
535 static int realize_basic_faces
P_ ((struct frame
*));
536 static int realize_default_face
P_ ((struct frame
*));
537 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
538 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
539 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
540 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
541 static unsigned lface_hash
P_ ((Lisp_Object
*));
542 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
543 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
544 static void free_realized_face
P_ ((struct frame
*, struct face
*));
545 static void clear_face_gcs
P_ ((struct face_cache
*));
546 static void free_face_cache
P_ ((struct face_cache
*));
547 static int face_numeric_weight
P_ ((Lisp_Object
));
548 static int face_numeric_slant
P_ ((Lisp_Object
));
549 static int face_numeric_swidth
P_ ((Lisp_Object
));
550 static int face_fontset
P_ ((Lisp_Object
*));
551 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int));
552 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*, Lisp_Object
));
553 static void merge_face_inheritance
P_ ((struct frame
*f
, Lisp_Object
,
554 Lisp_Object
*, Lisp_Object
));
555 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
557 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
558 Lisp_Object
, int, int));
559 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
560 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
561 static void free_realized_faces
P_ ((struct face_cache
*));
562 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
563 struct font_name
*, int));
564 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
565 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
566 static int xlfd_numeric_slant
P_ ((struct font_name
*));
567 static int xlfd_numeric_weight
P_ ((struct font_name
*));
568 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
569 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
570 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
571 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
572 static int xlfd_fixed_p
P_ ((struct font_name
*));
573 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
575 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
576 struct font_name
*, int,
578 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
579 struct font_name
*, int));
581 #ifdef HAVE_WINDOW_SYSTEM
583 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
584 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
585 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
586 int (*cmpfn
) P_ ((const void *, const void *))));
587 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
588 static void x_free_gc
P_ ((struct frame
*, GC
));
589 static void clear_font_table
P_ ((struct frame
*));
592 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
593 #endif /* WINDOWSNT */
595 #endif /* HAVE_WINDOW_SYSTEM */
598 /***********************************************************************
600 ***********************************************************************/
602 #ifdef HAVE_X_WINDOWS
604 #ifdef DEBUG_X_COLORS
606 /* The following is a poor mans infrastructure for debugging X color
607 allocation problems on displays with PseudoColor-8. Some X servers
608 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
609 color reference counts completely so that they don't signal an
610 error when a color is freed whose reference count is already 0.
611 Other X servers do. To help me debug this, the following code
612 implements a simple reference counting schema of its own, for a
613 single display/screen. --gerd. */
615 /* Reference counts for pixel colors. */
617 int color_count
[256];
619 /* Register color PIXEL as allocated. */
622 register_color (pixel
)
625 xassert (pixel
< 256);
626 ++color_count
[pixel
];
630 /* Register color PIXEL as deallocated. */
633 unregister_color (pixel
)
636 xassert (pixel
< 256);
637 if (color_count
[pixel
] > 0)
638 --color_count
[pixel
];
644 /* Register N colors from PIXELS as deallocated. */
647 unregister_colors (pixels
, n
)
648 unsigned long *pixels
;
652 for (i
= 0; i
< n
; ++i
)
653 unregister_color (pixels
[i
]);
657 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
658 "Dump currently allocated colors and their reference counts to stderr.")
663 fputc ('\n', stderr
);
665 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
668 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
671 fputc ('\n', stderr
);
673 fputc ('\t', stderr
);
677 fputc ('\n', stderr
);
681 #endif /* DEBUG_X_COLORS */
684 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
685 color values. Interrupt input must be blocked when this function
689 x_free_colors (f
, pixels
, npixels
)
691 unsigned long *pixels
;
694 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
696 /* If display has an immutable color map, freeing colors is not
697 necessary and some servers don't allow it. So don't do it. */
698 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
700 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
702 #ifdef DEBUG_X_COLORS
703 unregister_colors (pixels
, npixels
);
709 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
710 color values. Interrupt input must be blocked when this function
714 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
718 unsigned long *pixels
;
721 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
722 int class = dpyinfo
->visual
->class;
724 /* If display has an immutable color map, freeing colors is not
725 necessary and some servers don't allow it. So don't do it. */
726 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
728 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
729 #ifdef DEBUG_X_COLORS
730 unregister_colors (pixels
, npixels
);
736 /* Create and return a GC for use on frame F. GC values and mask
737 are given by XGCV and MASK. */
740 x_create_gc (f
, mask
, xgcv
)
747 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
754 /* Free GC which was used on frame F. */
762 xassert (--ngcs
>= 0);
763 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
767 #endif /* HAVE_X_WINDOWS */
770 /* W32 emulation of GCs */
773 x_create_gc (f
, mask
, xgcv
)
780 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
787 /* Free GC which was used on frame F. */
795 xassert (--ngcs
>= 0);
800 #endif /* WINDOWSNT */
802 /* Like stricmp. Used to compare parts of font names which are in
807 unsigned char *s1
, *s2
;
811 unsigned char c1
= tolower (*s1
);
812 unsigned char c2
= tolower (*s2
);
814 return c1
< c2
? -1 : 1;
819 return *s2
== 0 ? 0 : -1;
824 /* Like strlwr, which might not always be available. */
826 static unsigned char *
830 unsigned char *p
= s
;
839 /* Signal `error' with message S, and additional argument ARG. */
842 signal_error (s
, arg
)
846 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
850 /* If FRAME is nil, return a pointer to the selected frame.
851 Otherwise, check that FRAME is a live frame, and return a pointer
852 to it. NPARAM is the parameter number of FRAME, for
853 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
854 Lisp function definitions. */
856 static INLINE
struct frame
*
857 frame_or_selected_frame (frame
, nparam
)
862 frame
= selected_frame
;
864 CHECK_LIVE_FRAME (frame
, nparam
);
865 return XFRAME (frame
);
869 /***********************************************************************
871 ***********************************************************************/
873 /* Initialize face cache and basic faces for frame F. */
879 /* Make a face cache, if F doesn't have one. */
880 if (FRAME_FACE_CACHE (f
) == NULL
)
881 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
883 #ifdef HAVE_WINDOW_SYSTEM
884 /* Make the image cache. */
885 if (FRAME_WINDOW_P (f
))
887 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
888 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
889 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
891 #endif /* HAVE_WINDOW_SYSTEM */
893 /* Realize basic faces. Must have enough information in frame
894 parameters to realize basic faces at this point. */
895 #ifdef HAVE_X_WINDOWS
896 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
899 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
901 if (!realize_basic_faces (f
))
906 /* Free face cache of frame F. Called from Fdelete_frame. */
912 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
916 free_face_cache (face_cache
);
917 FRAME_FACE_CACHE (f
) = NULL
;
920 #ifdef HAVE_WINDOW_SYSTEM
921 if (FRAME_WINDOW_P (f
))
923 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
926 --image_cache
->refcount
;
927 if (image_cache
->refcount
== 0)
928 free_image_cache (f
);
931 #endif /* HAVE_WINDOW_SYSTEM */
935 /* Clear face caches, and recompute basic faces for frame F. Call
936 this after changing frame parameters on which those faces depend,
937 or when realized faces have been freed due to changing attributes
941 recompute_basic_faces (f
)
944 if (FRAME_FACE_CACHE (f
))
946 clear_face_cache (0);
947 if (!realize_basic_faces (f
))
953 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
954 try to free unused fonts, too. */
957 clear_face_cache (clear_fonts_p
)
960 #ifdef HAVE_WINDOW_SYSTEM
961 Lisp_Object tail
, frame
;
965 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
967 /* From time to time see if we can unload some fonts. This also
968 frees all realized faces on all frames. Fonts needed by
969 faces will be loaded again when faces are realized again. */
970 clear_font_table_count
= 0;
972 FOR_EACH_FRAME (tail
, frame
)
975 if (FRAME_WINDOW_P (f
)
976 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
978 free_all_realized_faces (frame
);
979 clear_font_table (f
);
985 /* Clear GCs of realized faces. */
986 FOR_EACH_FRAME (tail
, frame
)
989 if (FRAME_WINDOW_P (f
))
991 clear_face_gcs (FRAME_FACE_CACHE (f
));
992 clear_image_cache (f
, 0);
996 #endif /* HAVE_WINDOW_SYSTEM */
1000 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1001 "Clear face caches on all frames.\n\
1002 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
1004 Lisp_Object thorougly
;
1006 clear_face_cache (!NILP (thorougly
));
1007 ++face_change_count
;
1008 ++windows_or_buffers_changed
;
1014 #ifdef HAVE_WINDOW_SYSTEM
1017 /* Remove those fonts from the font table of frame F exept for the
1018 default ASCII font for the frame. Called from clear_face_cache
1019 from time to time. */
1022 clear_font_table (f
)
1025 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1028 xassert (FRAME_WINDOW_P (f
));
1030 /* Free those fonts that are not used by the frame F as the default. */
1031 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1033 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1035 if (!font_info
->name
1036 || font_info
->font
== FRAME_FONT (f
))
1040 if (font_info
->full_name
!= font_info
->name
)
1041 xfree (font_info
->full_name
);
1042 xfree (font_info
->name
);
1044 /* Free the font. */
1046 #ifdef HAVE_X_WINDOWS
1047 XFreeFont (dpyinfo
->display
, font_info
->font
);
1050 w32_unload_font (dpyinfo
, font_info
->font
);
1054 /* Mark font table slot free. */
1055 font_info
->font
= NULL
;
1056 font_info
->name
= font_info
->full_name
= NULL
;
1060 #endif /* HAVE_WINDOW_SYSTEM */
1064 /***********************************************************************
1066 ***********************************************************************/
1068 #ifdef HAVE_WINDOW_SYSTEM
1070 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1071 "Value is non-nil if OBJECT is a valid bitmap specification.\n\
1072 A bitmap specification is either a string, a file name, or a list\n\
1073 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\
1074 HEIGHT is its height, and DATA is a string containing the bits of\n\
1075 the pixmap. Bits are stored row by row, each row occupies\n\
1076 (WIDTH + 7)/8 bytes.")
1082 if (STRINGP (object
))
1083 /* If OBJECT is a string, it's a file name. */
1085 else if (CONSP (object
))
1087 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1088 HEIGHT must be integers > 0, and DATA must be string large
1089 enough to hold a bitmap of the specified size. */
1090 Lisp_Object width
, height
, data
;
1092 height
= width
= data
= Qnil
;
1096 width
= XCAR (object
);
1097 object
= XCDR (object
);
1100 height
= XCAR (object
);
1101 object
= XCDR (object
);
1103 data
= XCAR (object
);
1107 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1109 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1111 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* XINT (height
))
1116 return pixmap_p
? Qt
: Qnil
;
1120 /* Load a bitmap according to NAME (which is either a file name or a
1121 pixmap spec) for use on frame F. Value is the bitmap_id (see
1122 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1123 bitmap cannot be loaded, display a message saying so, and return
1124 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1125 if these pointers are not null. */
1128 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1131 unsigned int *w_ptr
, *h_ptr
;
1139 tem
= Fbitmap_spec_p (name
);
1141 wrong_type_argument (Qbitmap_spec_p
, name
);
1146 /* Decode a bitmap spec into a bitmap. */
1151 w
= XINT (Fcar (name
));
1152 h
= XINT (Fcar (Fcdr (name
)));
1153 bits
= Fcar (Fcdr (Fcdr (name
)));
1155 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
1160 /* It must be a string -- a file name. */
1161 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1167 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1178 ++npixmaps_allocated
;
1181 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1184 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1190 #endif /* HAVE_WINDOW_SYSTEM */
1194 /***********************************************************************
1196 ***********************************************************************/
1198 #ifdef HAVE_WINDOW_SYSTEM
1200 /* Update the line_height of frame F. Return non-zero if line height
1204 frame_update_line_height (f
)
1207 int line_height
, changed_p
;
1209 line_height
= FONT_HEIGHT (FRAME_FONT (f
));
1210 changed_p
= line_height
!= FRAME_LINE_HEIGHT (f
);
1211 FRAME_LINE_HEIGHT (f
) = line_height
;
1215 #endif /* HAVE_WINDOW_SYSTEM */
1218 /***********************************************************************
1220 ***********************************************************************/
1222 #ifdef HAVE_WINDOW_SYSTEM
1224 /* Load font of face FACE which is used on frame F to display
1225 character C. The name of the font to load is determined by lface
1226 and fontset of FACE. */
1229 load_face_font (f
, face
, c
)
1234 struct font_info
*font_info
= NULL
;
1237 face
->font_info_id
= -1;
1240 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
);
1245 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1250 face
->font_info_id
= font_info
->font_idx
;
1251 face
->font
= font_info
->font
;
1252 face
->font_name
= font_info
->full_name
;
1255 x_free_gc (f
, face
->gc
);
1260 add_to_log ("Unable to load font %s",
1261 build_string (font_name
), Qnil
);
1265 #endif /* HAVE_WINDOW_SYSTEM */
1269 /***********************************************************************
1271 ***********************************************************************/
1273 /* A version of defined_color for non-X frames. */
1276 tty_defined_color (f
, color_name
, color_def
, alloc
)
1282 Lisp_Object color_desc
;
1283 unsigned long color_idx
= FACE_TTY_DEFAULT_COLOR
;
1284 unsigned long red
= 0, green
= 0, blue
= 0;
1287 if (*color_name
&& !NILP (Ffboundp (Qtty_color_desc
)))
1291 XSETFRAME (frame
, f
);
1293 color_desc
= call2 (Qtty_color_desc
, build_string (color_name
), frame
);
1294 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1296 color_idx
= XINT (XCAR (XCDR (color_desc
)));
1297 if (CONSP (XCDR (XCDR (color_desc
))))
1299 red
= XINT (XCAR (XCDR (XCDR (color_desc
))));
1300 green
= XINT (XCAR (XCDR (XCDR (XCDR (color_desc
)))));
1301 blue
= XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc
))))));
1305 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1306 /* We were called early during startup, and the colors are not
1307 yet set up in tty-defined-color-alist. Don't return a failure
1308 indication, since this produces the annoying "Unable to
1309 load color" messages in the *Messages* buffer. */
1312 if (color_idx
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1314 if (strcmp (color_name
, "unspecified-fg") == 0)
1315 color_idx
= FACE_TTY_DEFAULT_FG_COLOR
;
1316 else if (strcmp (color_name
, "unspecified-bg") == 0)
1317 color_idx
= FACE_TTY_DEFAULT_BG_COLOR
;
1320 if (color_idx
!= FACE_TTY_DEFAULT_COLOR
)
1323 color_def
->pixel
= color_idx
;
1324 color_def
->red
= red
;
1325 color_def
->green
= green
;
1326 color_def
->blue
= blue
;
1332 /* Decide if color named COLOR_NAME is valid for the display
1333 associated with the frame F; if so, return the rgb values in
1334 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1336 This does the right thing for any type of frame. */
1339 defined_color (f
, color_name
, color_def
, alloc
)
1345 if (!FRAME_WINDOW_P (f
))
1346 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1347 #ifdef HAVE_X_WINDOWS
1348 else if (FRAME_X_P (f
))
1349 return x_defined_color (f
, color_name
, color_def
, alloc
);
1352 else if (FRAME_W32_P (f
))
1353 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1356 else if (FRAME_MAC_P (f
))
1357 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1364 /* Given the index IDX of a tty color on frame F, return its name, a
1368 tty_color_name (f
, idx
)
1372 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1375 Lisp_Object coldesc
;
1377 XSETFRAME (frame
, f
);
1378 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1380 if (!NILP (coldesc
))
1381 return XCAR (coldesc
);
1384 /* We can have an MSDOG frame under -nw for a short window of
1385 opportunity before internal_terminal_init is called. DTRT. */
1386 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1387 return msdos_stdcolor_name (idx
);
1390 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1391 return build_string (unspecified_fg
);
1392 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1393 return build_string (unspecified_bg
);
1396 return vga_stdcolor_name (idx
);
1399 return Qunspecified
;
1403 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1404 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1407 face_color_gray_p (f
, color_name
)
1414 if (defined_color (f
, color_name
, &color
, 0))
1415 gray_p
= ((abs (color
.red
- color
.green
)
1416 < max (color
.red
, color
.green
) / 20)
1417 && (abs (color
.green
- color
.blue
)
1418 < max (color
.green
, color
.blue
) / 20)
1419 && (abs (color
.blue
- color
.red
)
1420 < max (color
.blue
, color
.red
) / 20));
1428 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1429 BACKGROUND_P non-zero means the color will be used as background
1433 face_color_supported_p (f
, color_name
, background_p
)
1441 XSETFRAME (frame
, f
);
1442 return (FRAME_WINDOW_P (f
)
1443 ? (!NILP (Fxw_display_color_p (frame
))
1444 || xstricmp (color_name
, "black") == 0
1445 || xstricmp (color_name
, "white") == 0
1447 && face_color_gray_p (f
, color_name
))
1448 || (!NILP (Fx_display_grayscale_p (frame
))
1449 && face_color_gray_p (f
, color_name
)))
1450 : tty_defined_color (f
, color_name
, ¬_used
, 0));
1454 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1455 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1456 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1457 If FRAME is nil or omitted, use the selected frame.")
1459 Lisp_Object color
, frame
;
1463 CHECK_FRAME (frame
, 0);
1464 CHECK_STRING (color
, 0);
1466 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1470 DEFUN ("color-supported-p", Fcolor_supported_p
,
1471 Scolor_supported_p
, 2, 3, 0,
1472 "Return non-nil if COLOR can be displayed on FRAME.\n\
1473 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1474 If FRAME is nil or omitted, use the selected frame.\n\
1475 COLOR must be a valid color name.")
1476 (color
, frame
, background_p
)
1477 Lisp_Object frame
, color
, background_p
;
1481 CHECK_FRAME (frame
, 0);
1482 CHECK_STRING (color
, 0);
1484 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1490 /* Load color with name NAME for use by face FACE on frame F.
1491 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1492 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1493 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1494 pixel color. If color cannot be loaded, display a message, and
1495 return the foreground, background or underline color of F, but
1496 record that fact in flags of the face so that we don't try to free
1500 load_color (f
, face
, name
, target_index
)
1504 enum lface_attribute_index target_index
;
1508 xassert (STRINGP (name
));
1509 xassert (target_index
== LFACE_FOREGROUND_INDEX
1510 || target_index
== LFACE_BACKGROUND_INDEX
1511 || target_index
== LFACE_UNDERLINE_INDEX
1512 || target_index
== LFACE_OVERLINE_INDEX
1513 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1514 || target_index
== LFACE_BOX_INDEX
);
1516 /* if the color map is full, defined_color will return a best match
1517 to the values in an existing cell. */
1518 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1520 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1522 switch (target_index
)
1524 case LFACE_FOREGROUND_INDEX
:
1525 face
->foreground_defaulted_p
= 1;
1526 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1529 case LFACE_BACKGROUND_INDEX
:
1530 face
->background_defaulted_p
= 1;
1531 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1534 case LFACE_UNDERLINE_INDEX
:
1535 face
->underline_defaulted_p
= 1;
1536 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1539 case LFACE_OVERLINE_INDEX
:
1540 face
->overline_color_defaulted_p
= 1;
1541 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1544 case LFACE_STRIKE_THROUGH_INDEX
:
1545 face
->strike_through_color_defaulted_p
= 1;
1546 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1549 case LFACE_BOX_INDEX
:
1550 face
->box_color_defaulted_p
= 1;
1551 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1560 ++ncolors_allocated
;
1567 #ifdef HAVE_WINDOW_SYSTEM
1569 /* Load colors for face FACE which is used on frame F. Colors are
1570 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1571 of ATTRS. If the background color specified is not supported on F,
1572 try to emulate gray colors with a stipple from Vface_default_stipple. */
1575 load_face_colors (f
, face
, attrs
)
1582 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1583 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1585 /* Swap colors if face is inverse-video. */
1586 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1594 /* Check for support for foreground, not for background because
1595 face_color_supported_p is smart enough to know that grays are
1596 "supported" as background because we are supposed to use stipple
1598 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1599 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1601 x_destroy_bitmap (f
, face
->stipple
);
1602 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1603 &face
->pixmap_w
, &face
->pixmap_h
);
1606 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1607 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1611 /* Free color PIXEL on frame F. */
1614 unload_color (f
, pixel
)
1616 unsigned long pixel
;
1618 #ifdef HAVE_X_WINDOWS
1620 x_free_colors (f
, &pixel
, 1);
1626 /* Free colors allocated for FACE. */
1629 free_face_colors (f
, face
)
1633 #ifdef HAVE_X_WINDOWS
1636 if (!face
->foreground_defaulted_p
)
1638 x_free_colors (f
, &face
->foreground
, 1);
1639 IF_DEBUG (--ncolors_allocated
);
1642 if (!face
->background_defaulted_p
)
1644 x_free_colors (f
, &face
->background
, 1);
1645 IF_DEBUG (--ncolors_allocated
);
1648 if (face
->underline_p
1649 && !face
->underline_defaulted_p
)
1651 x_free_colors (f
, &face
->underline_color
, 1);
1652 IF_DEBUG (--ncolors_allocated
);
1655 if (face
->overline_p
1656 && !face
->overline_color_defaulted_p
)
1658 x_free_colors (f
, &face
->overline_color
, 1);
1659 IF_DEBUG (--ncolors_allocated
);
1662 if (face
->strike_through_p
1663 && !face
->strike_through_color_defaulted_p
)
1665 x_free_colors (f
, &face
->strike_through_color
, 1);
1666 IF_DEBUG (--ncolors_allocated
);
1669 if (face
->box
!= FACE_NO_BOX
1670 && !face
->box_color_defaulted_p
)
1672 x_free_colors (f
, &face
->box_color
, 1);
1673 IF_DEBUG (--ncolors_allocated
);
1677 #endif /* HAVE_X_WINDOWS */
1680 #endif /* HAVE_WINDOW_SYSTEM */
1684 /***********************************************************************
1686 ***********************************************************************/
1688 /* An enumerator for each field of an XLFD font name. */
1709 /* An enumerator for each possible slant value of a font. Taken from
1710 the XLFD specification. */
1718 XLFD_SLANT_REVERSE_ITALIC
,
1719 XLFD_SLANT_REVERSE_OBLIQUE
,
1723 /* Relative font weight according to XLFD documentation. */
1727 XLFD_WEIGHT_UNKNOWN
,
1728 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1729 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1730 XLFD_WEIGHT_LIGHT
, /* 30 */
1731 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1732 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1733 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1734 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1735 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1736 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1739 /* Relative proportionate width. */
1743 XLFD_SWIDTH_UNKNOWN
,
1744 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1745 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1746 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1747 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1748 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1749 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1750 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1751 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1752 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1755 /* Structure used for tables mapping XLFD weight, slant, and width
1756 names to numeric and symbolic values. */
1762 Lisp_Object
*symbol
;
1765 /* Table of XLFD slant names and their numeric and symbolic
1766 representations. This table must be sorted by slant names in
1769 static struct table_entry slant_table
[] =
1771 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1772 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1773 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1774 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1775 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1776 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1779 /* Table of XLFD weight names. This table must be sorted by weight
1780 names in ascending order. */
1782 static struct table_entry weight_table
[] =
1784 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1785 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1786 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1787 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1788 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1789 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1790 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1791 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1792 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1793 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1794 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1795 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1796 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1797 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1798 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1799 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1802 /* Table of XLFD width names. This table must be sorted by width
1803 names in ascending order. */
1805 static struct table_entry swidth_table
[] =
1807 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1808 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1809 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1810 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1811 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1812 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1813 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1814 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1815 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1816 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1817 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1818 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1819 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1820 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1821 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1824 /* Structure used to hold the result of splitting font names in XLFD
1825 format into their fields. */
1829 /* The original name which is modified destructively by
1830 split_font_name. The pointer is kept here to be able to free it
1831 if it was allocated from the heap. */
1834 /* Font name fields. Each vector element points into `name' above.
1835 Fields are NUL-terminated. */
1836 char *fields
[XLFD_LAST
];
1838 /* Numeric values for those fields that interest us. See
1839 split_font_name for which these are. */
1840 int numeric
[XLFD_LAST
];
1842 /* Lower value mean higher priority. */
1843 int registry_priority
;
1846 /* The frame in effect when sorting font names. Set temporarily in
1847 sort_fonts so that it is available in font comparison functions. */
1849 static struct frame
*font_frame
;
1851 /* Order by which font selection chooses fonts. The default values
1852 mean `first, find a best match for the font width, then for the
1853 font height, then for weight, then for slant.' This variable can be
1854 set via set-face-font-sort-order. */
1857 static int font_sort_order
[4] = { XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
};
1859 static int font_sort_order
[4];
1862 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1863 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1864 is a pointer to the matching table entry or null if no table entry
1867 static struct table_entry
*
1868 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1869 struct table_entry
*table
;
1871 struct font_name
*font
;
1874 /* Function split_font_name converts fields to lower-case, so there
1875 is no need to use xstrlwr or xstricmp here. */
1876 char *s
= font
->fields
[field_index
];
1877 int low
, mid
, high
, cmp
;
1884 mid
= (low
+ high
) / 2;
1885 cmp
= strcmp (table
[mid
].name
, s
);
1899 /* Return a numeric representation for font name field
1900 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1901 has DIM entries. Value is the numeric value found or DFLT if no
1902 table entry matches. This function is used to translate weight,
1903 slant, and swidth names of XLFD font names to numeric values. */
1906 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1907 struct table_entry
*table
;
1909 struct font_name
*font
;
1913 struct table_entry
*p
;
1914 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1915 return p
? p
->numeric
: dflt
;
1919 /* Return a symbolic representation for font name field
1920 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1921 has DIM entries. Value is the symbolic value found or DFLT if no
1922 table entry matches. This function is used to translate weight,
1923 slant, and swidth names of XLFD font names to symbols. */
1925 static INLINE Lisp_Object
1926 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1927 struct table_entry
*table
;
1929 struct font_name
*font
;
1933 struct table_entry
*p
;
1934 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1935 return p
? *p
->symbol
: dflt
;
1939 /* Return a numeric value for the slant of the font given by FONT. */
1942 xlfd_numeric_slant (font
)
1943 struct font_name
*font
;
1945 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1946 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1950 /* Return a symbol representing the weight of the font given by FONT. */
1952 static INLINE Lisp_Object
1953 xlfd_symbolic_slant (font
)
1954 struct font_name
*font
;
1956 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1957 font
, XLFD_SLANT
, Qnormal
);
1961 /* Return a numeric value for the weight of the font given by FONT. */
1964 xlfd_numeric_weight (font
)
1965 struct font_name
*font
;
1967 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1968 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1972 /* Return a symbol representing the slant of the font given by FONT. */
1974 static INLINE Lisp_Object
1975 xlfd_symbolic_weight (font
)
1976 struct font_name
*font
;
1978 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1979 font
, XLFD_WEIGHT
, Qnormal
);
1983 /* Return a numeric value for the swidth of the font whose XLFD font
1984 name fields are found in FONT. */
1987 xlfd_numeric_swidth (font
)
1988 struct font_name
*font
;
1990 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
1991 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
1995 /* Return a symbolic value for the swidth of FONT. */
1997 static INLINE Lisp_Object
1998 xlfd_symbolic_swidth (font
)
1999 struct font_name
*font
;
2001 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2002 font
, XLFD_SWIDTH
, Qnormal
);
2006 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2007 entries. Value is a pointer to the matching table entry or null if
2008 no element of TABLE contains SYMBOL. */
2010 static struct table_entry
*
2011 face_value (table
, dim
, symbol
)
2012 struct table_entry
*table
;
2018 xassert (SYMBOLP (symbol
));
2020 for (i
= 0; i
< dim
; ++i
)
2021 if (EQ (*table
[i
].symbol
, symbol
))
2024 return i
< dim
? table
+ i
: NULL
;
2028 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2029 entries. Value is -1 if SYMBOL is not found in TABLE. */
2032 face_numeric_value (table
, dim
, symbol
)
2033 struct table_entry
*table
;
2037 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2038 return p
? p
->numeric
: -1;
2042 /* Return a numeric value representing the weight specified by Lisp
2043 symbol WEIGHT. Value is one of the enumerators of enum
2047 face_numeric_weight (weight
)
2050 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2054 /* Return a numeric value representing the slant specified by Lisp
2055 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2058 face_numeric_slant (slant
)
2061 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2065 /* Return a numeric value representing the swidth specified by Lisp
2066 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2069 face_numeric_swidth (width
)
2072 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2076 #ifdef HAVE_WINDOW_SYSTEM
2078 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2082 struct font_name
*font
;
2084 /* Function split_font_name converts fields to lower-case, so there
2085 is no need to use tolower here. */
2086 return *font
->fields
[XLFD_SPACING
] != 'p';
2090 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2092 The actual height of the font when displayed on F depends on the
2093 resolution of both the font and frame. For example, a 10pt font
2094 designed for a 100dpi display will display larger than 10pt on a
2095 75dpi display. (It's not unusual to use fonts not designed for the
2096 display one is using. For example, some intlfonts are available in
2097 72dpi versions, only.)
2099 Value is the real point size of FONT on frame F, or 0 if it cannot
2103 xlfd_point_size (f
, font
)
2105 struct font_name
*font
;
2107 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2108 double font_resy
= atoi (font
->fields
[XLFD_RESY
]);
2109 double font_pt
= atoi (font
->fields
[XLFD_POINT_SIZE
]);
2112 if (font_resy
== 0 || font_pt
== 0)
2115 real_pt
= (font_resy
/ resy
) * font_pt
+ 0.5;
2121 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2122 of frame F. This function is used to guess a point size of font
2123 when only the pixel height of the font is available. */
2126 pixel_point_size (f
, pixel
)
2130 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2134 /* As one inch is 72 points, 72/RESY gives the point size of one dot. */
2135 real_pt
= pixel
* 72 / resy
;
2136 int_pt
= real_pt
+ 0.5;
2142 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2143 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2144 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2145 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2146 zero if the font name doesn't have the format we expect. The
2147 expected format is a font name that starts with a `-' and has
2148 XLFD_LAST fields separated by `-'. (The XLFD specification allows
2149 forms of font names where certain field contents are enclosed in
2150 square brackets. We don't support that, for now. */
2153 split_font_name (f
, font
, numeric_p
)
2155 struct font_name
*font
;
2161 if (*font
->name
== '-')
2163 char *p
= xstrlwr (font
->name
) + 1;
2165 while (i
< XLFD_LAST
)
2167 font
->fields
[i
] = p
;
2170 while (*p
&& *p
!= '-')
2180 success_p
= i
== XLFD_LAST
;
2182 /* If requested, and font name was in the expected format,
2183 compute numeric values for some fields. */
2184 if (numeric_p
&& success_p
)
2186 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2187 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2188 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2189 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2190 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2193 /* Initialize it to zero. It will be overridden by font_list while
2194 trying alternate registries. */
2195 font
->registry_priority
= 0;
2201 /* Build an XLFD font name from font name fields in FONT. Value is a
2202 pointer to the font name, which is allocated via xmalloc. */
2205 build_font_name (font
)
2206 struct font_name
*font
;
2210 char *font_name
= (char *) xmalloc (size
);
2211 int total_length
= 0;
2213 for (i
= 0; i
< XLFD_LAST
; ++i
)
2215 /* Add 1 because of the leading `-'. */
2216 int len
= strlen (font
->fields
[i
]) + 1;
2218 /* Reallocate font_name if necessary. Add 1 for the final
2220 if (total_length
+ len
+ 1 >= size
)
2222 int new_size
= max (2 * size
, size
+ len
+ 1);
2223 int sz
= new_size
* sizeof *font_name
;
2224 font_name
= (char *) xrealloc (font_name
, sz
);
2228 font_name
[total_length
] = '-';
2229 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2230 total_length
+= len
;
2233 font_name
[total_length
] = 0;
2238 /* Free an array FONTS of N font_name structures. This frees FONTS
2239 itself and all `name' fields in its elements. */
2242 free_font_names (fonts
, n
)
2243 struct font_name
*fonts
;
2247 xfree (fonts
[--n
].name
);
2252 /* Sort vector FONTS of font_name structures which contains NFONTS
2253 elements using qsort and comparison function CMPFN. F is the frame
2254 on which the fonts will be used. The global variable font_frame
2255 is temporarily set to F to make it available in CMPFN. */
2258 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2260 struct font_name
*fonts
;
2262 int (*cmpfn
) P_ ((const void *, const void *));
2265 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2270 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2271 display in x_display_list. FONTS is a pointer to a vector of
2272 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2273 alternative patterns from Valternate_fontname_alist if no fonts are
2274 found matching PATTERN. SCALABLE_FONTS_P non-zero means include
2277 For all fonts found, set FONTS[i].name to the name of the font,
2278 allocated via xmalloc, and split font names into fields. Ignore
2279 fonts that we can't parse. Value is the number of fonts found.
2281 This is similar to x_list_fonts. The differences are:
2283 1. It avoids consing.
2284 2. It never calls XLoadQueryFont. */
2287 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
,
2291 struct font_name
*fonts
;
2292 int nfonts
, try_alternatives_p
;
2293 int scalable_fonts_p
;
2297 #ifdef HAVE_X_WINDOWS
2298 Display
*dpy
= f
? FRAME_X_DISPLAY (f
) : x_display_list
->display
;
2300 /* Get the list of fonts matching PATTERN from the X server. */
2302 names
= XListFonts (dpy
, pattern
, nfonts
, &n
);
2304 #endif /* HAVE_X_WINDOWS */
2305 #if defined (WINDOWSNT) || defined (macintosh)
2306 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2307 better to do it the other way around. */
2309 Lisp_Object lpattern
, tem
;
2314 lpattern
= build_string (pattern
);
2316 /* Get the list of fonts matching PATTERN. */
2319 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2320 #else /* macintosh */
2321 lfonts
= x_list_fonts (f
, lpattern
, 0, nfonts
);
2325 /* Count fonts returned */
2326 for (tem
= lfonts
; CONSP (tem
); tem
= XCDR (tem
))
2329 /* Allocate array. */
2331 names
= (char **) xmalloc (n
* sizeof (char *));
2333 /* Extract font names into char * array. */
2335 for (i
= 0; i
< n
; i
++)
2337 names
[i
] = XSTRING (XCAR (tem
))->data
;
2340 #endif /* defined (WINDOWSNT) || defined (macintosh) */
2344 /* Make a copy of the font names we got from X, and
2345 split them into fields. */
2346 for (i
= j
= 0; i
< n
; ++i
)
2348 Lisp_Object elt
, tail
;
2350 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2354 && fast_c_string_match_ignore_case (elt
, names
[i
]) >= 0)
2360 /* Make a copy of the font name. */
2361 fonts
[j
].name
= xstrdup (names
[i
]);
2363 /* Ignore fonts having a name that we can't parse. */
2364 if (!split_font_name (f
, fonts
+ j
, 1))
2365 xfree (fonts
[j
].name
);
2366 else if (font_scalable_p (fonts
+ j
))
2368 if (!scalable_fonts_p
2369 || !may_use_scalable_font_p (fonts
+ j
, names
[i
]))
2370 xfree (fonts
[j
].name
);
2380 #ifdef HAVE_X_WINDOWS
2381 /* Free font names. */
2383 XFreeFontNames (names
);
2389 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2390 if (n
== 0 && try_alternatives_p
)
2392 Lisp_Object list
= Valternate_fontname_alist
;
2394 while (CONSP (list
))
2396 Lisp_Object entry
= XCAR (list
);
2398 && STRINGP (XCAR (entry
))
2399 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2406 Lisp_Object patterns
= XCAR (list
);
2409 while (CONSP (patterns
)
2410 /* If list is screwed up, give up. */
2411 && (name
= XCAR (patterns
),
2413 /* Ignore patterns equal to PATTERN because we tried that
2414 already with no success. */
2415 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2416 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2420 patterns
= XCDR (patterns
);
2428 /* Determine the first font matching PATTERN on frame F. Return in
2429 *FONT the matching font name, split into fields. Value is non-zero
2430 if a match was found. */
2433 first_font_matching (f
, pattern
, font
)
2436 struct font_name
*font
;
2439 struct font_name
*fonts
;
2441 fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof *fonts
);
2442 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1, 0);
2446 bcopy (&fonts
[0], font
, sizeof *font
);
2448 fonts
[0].name
= NULL
;
2449 free_font_names (fonts
, nfonts
);
2456 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2457 using comparison function CMPFN. Value is the number of fonts
2458 found. If value is non-zero, *FONTS is set to a vector of
2459 font_name structures allocated from the heap containing matching
2460 fonts. Each element of *FONTS contains a name member that is also
2461 allocated from the heap. Font names in these structures are split
2462 into fields. Use free_font_names to free such an array. */
2465 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2468 int (*cmpfn
) P_ ((const void *, const void *));
2469 struct font_name
**fonts
;
2473 /* Get the list of fonts matching pattern. 100 should suffice. */
2474 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2475 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2476 nfonts
= XFASTINT (Vfont_list_limit
);
2478 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2479 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 1);
2481 /* Sort the resulting array and return it in *FONTS. If no
2482 fonts were found, make sure to set *FONTS to null. */
2484 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2495 /* Compare two font_name structures *A and *B. Value is analogous to
2496 strcmp. Sort order is given by the global variable
2497 font_sort_order. Font names are sorted so that, everything else
2498 being equal, fonts with a resolution closer to that of the frame on
2499 which they are used are listed first. The global variable
2500 font_frame is the frame on which we operate. */
2503 cmp_font_names (a
, b
)
2506 struct font_name
*x
= (struct font_name
*) a
;
2507 struct font_name
*y
= (struct font_name
*) b
;
2510 /* All strings have been converted to lower-case by split_font_name,
2511 so we can use strcmp here. */
2512 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2517 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2519 int j
= font_sort_order
[i
];
2520 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2525 /* Everything else being equal, we prefer fonts with an
2526 y-resolution closer to that of the frame. */
2527 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2528 int x_resy
= x
->numeric
[XLFD_RESY
];
2529 int y_resy
= y
->numeric
[XLFD_RESY
];
2530 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2538 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2539 is non-nil list fonts matching that pattern. Otherwise, if
2540 REGISTRY is non-nil return only fonts with that registry, otherwise
2541 return fonts of any registry. Set *FONTS to a vector of font_name
2542 structures allocated from the heap containing the fonts found.
2543 Value is the number of fonts found. */
2546 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2548 Lisp_Object pattern
, family
, registry
;
2549 struct font_name
**fonts
;
2551 char *pattern_str
, *family_str
, *registry_str
;
2555 family_str
= (NILP (family
) ? "*" : (char *) XSTRING (family
)->data
);
2556 registry_str
= (NILP (registry
) ? "*" : (char *) XSTRING (registry
)->data
);
2558 pattern_str
= (char *) alloca (strlen (family_str
)
2559 + strlen (registry_str
)
2561 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2562 strcat (pattern_str
, family_str
);
2563 strcat (pattern_str
, "-*-");
2564 strcat (pattern_str
, registry_str
);
2565 if (!index (registry_str
, '-'))
2567 if (registry_str
[strlen (registry_str
) - 1] == '*')
2568 strcat (pattern_str
, "-*");
2570 strcat (pattern_str
, "*-*");
2574 pattern_str
= (char *) XSTRING (pattern
)->data
;
2576 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2580 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2581 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2582 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2585 static struct font_name
*
2586 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2587 struct font_name
*fonts1
, *fonts2
;
2588 int nfonts1
, nfonts2
;
2590 int new_nfonts
= nfonts1
+ nfonts2
;
2591 struct font_name
*new_fonts
;
2593 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2594 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2595 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2602 /* Get a sorted list of fonts of family FAMILY on frame F.
2604 If PATTERN is non-nil list fonts matching that pattern.
2606 If REGISTRY is non-nil, return fonts with that registry and the
2607 alternative registries from Vface_alternative_font_registry_alist.
2609 If REGISTRY is nil return fonts of any registry.
2611 Set *FONTS to a vector of font_name structures allocated from the
2612 heap containing the fonts found. Value is the number of fonts
2616 font_list (f
, pattern
, family
, registry
, fonts
)
2618 Lisp_Object pattern
, family
, registry
;
2619 struct font_name
**fonts
;
2621 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2623 if (!NILP (registry
)
2624 && CONSP (Vface_alternative_font_registry_alist
))
2628 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2633 for (alter
= XCDR (alter
), reg_prio
= 1;
2635 alter
= XCDR (alter
), reg_prio
++)
2636 if (STRINGP (XCAR (alter
)))
2639 struct font_name
*fonts2
;
2641 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2643 for (i
= 0; i
< nfonts2
; i
++)
2644 fonts2
[i
].registry_priority
= reg_prio
;
2645 *fonts
= (nfonts
> 0
2646 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2657 /* Remove elements from LIST whose cars are `equal'. Called from
2658 x-family-fonts and x-font-family-list to remove duplicate font
2662 remove_duplicates (list
)
2665 Lisp_Object tail
= list
;
2667 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2669 Lisp_Object next
= XCDR (tail
);
2670 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2671 XCDR (tail
) = XCDR (next
);
2678 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2679 "Return a list of available fonts of family FAMILY on FRAME.\n\
2680 If FAMILY is omitted or nil, list all families.\n\
2681 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2683 If FRAME is omitted or nil, use the selected frame.\n\
2684 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2685 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2686 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2687 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2688 width, weight and slant of the font. These symbols are the same as for\n\
2689 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2690 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2691 giving the registry and encoding of the font.\n\
2692 The result list is sorted according to the current setting of\n\
2693 the face font sort order.")
2695 Lisp_Object family
, frame
;
2697 struct frame
*f
= check_x_frame (frame
);
2698 struct font_name
*fonts
;
2701 struct gcpro gcpro1
;
2704 CHECK_STRING (family
, 1);
2708 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2709 for (i
= nfonts
- 1; i
>= 0; --i
)
2711 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2714 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2715 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2716 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2717 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2718 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2719 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2720 tem
= build_font_name (fonts
+ i
);
2721 ASET (v
, 6, build_string (tem
));
2722 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2723 fonts
[i
].fields
[XLFD_ENCODING
]);
2724 ASET (v
, 7, build_string (tem
));
2727 result
= Fcons (v
, result
);
2730 remove_duplicates (result
);
2731 free_font_names (fonts
, nfonts
);
2737 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2739 "Return a list of available font families on FRAME.\n\
2740 If FRAME is omitted or nil, use the selected frame.\n\
2741 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2742 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2747 struct frame
*f
= check_x_frame (frame
);
2749 struct font_name
*fonts
;
2751 struct gcpro gcpro1
;
2752 int count
= specpdl_ptr
- specpdl
;
2755 /* Let's consider all fonts. Increase the limit for matching
2756 fonts until we have them all. */
2759 specbind (intern ("font-list-limit"), make_number (limit
));
2760 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2762 if (nfonts
== limit
)
2764 free_font_names (fonts
, nfonts
);
2773 for (i
= nfonts
- 1; i
>= 0; --i
)
2774 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2775 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2778 remove_duplicates (result
);
2779 free_font_names (fonts
, nfonts
);
2781 return unbind_to (count
, result
);
2785 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2786 "Return a list of the names of available fonts matching PATTERN.\n\
2787 If optional arguments FACE and FRAME are specified, return only fonts\n\
2788 the same size as FACE on FRAME.\n\
2789 PATTERN is a string, perhaps with wildcard characters;\n\
2790 the * character matches any substring, and\n\
2791 the ? character matches any single character.\n\
2792 PATTERN is case-insensitive.\n\
2793 FACE is a face name--a symbol.\n\
2795 The return value is a list of strings, suitable as arguments to\n\
2798 Fonts Emacs can't use may or may not be excluded\n\
2799 even if they match PATTERN and FACE.\n\
2800 The optional fourth argument MAXIMUM sets a limit on how many\n\
2801 fonts to match. The first MAXIMUM fonts are reported.\n\
2802 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2803 occupied by a character of a font. In that case, return only fonts\n\
2804 the WIDTH times as wide as FACE on FRAME.")
2805 (pattern
, face
, frame
, maximum
, width
)
2806 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2813 CHECK_STRING (pattern
, 0);
2819 CHECK_NATNUM (maximum
, 0);
2820 maxnames
= XINT (maximum
);
2824 CHECK_NUMBER (width
, 4);
2826 /* We can't simply call check_x_frame because this function may be
2827 called before any frame is created. */
2828 f
= frame_or_selected_frame (frame
, 2);
2829 if (!FRAME_WINDOW_P (f
))
2831 /* Perhaps we have not yet created any frame. */
2836 /* Determine the width standard for comparison with the fonts we find. */
2842 /* This is of limited utility since it works with character
2843 widths. Keep it for compatibility. --gerd. */
2844 int face_id
= lookup_named_face (f
, face
, 0);
2845 struct face
*face
= (face_id
< 0
2847 : FACE_FROM_ID (f
, face_id
));
2849 if (face
&& face
->font
)
2850 size
= FONT_WIDTH (face
->font
);
2852 size
= FONT_WIDTH (FRAME_FONT (f
));
2855 size
*= XINT (width
);
2859 Lisp_Object args
[2];
2861 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2863 /* We don't have to check fontsets. */
2865 args
[1] = list_fontsets (f
, pattern
, size
);
2866 return Fnconc (2, args
);
2870 #endif /* HAVE_WINDOW_SYSTEM */
2874 /***********************************************************************
2876 ***********************************************************************/
2878 /* Access face attributes of face FACE, a Lisp vector. */
2880 #define LFACE_FAMILY(LFACE) \
2881 XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX]
2882 #define LFACE_HEIGHT(LFACE) \
2883 XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX]
2884 #define LFACE_WEIGHT(LFACE) \
2885 XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX]
2886 #define LFACE_SLANT(LFACE) \
2887 XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX]
2888 #define LFACE_UNDERLINE(LFACE) \
2889 XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX]
2890 #define LFACE_INVERSE(LFACE) \
2891 XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX]
2892 #define LFACE_FOREGROUND(LFACE) \
2893 XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX]
2894 #define LFACE_BACKGROUND(LFACE) \
2895 XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX]
2896 #define LFACE_STIPPLE(LFACE) \
2897 XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX]
2898 #define LFACE_SWIDTH(LFACE) \
2899 XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX]
2900 #define LFACE_OVERLINE(LFACE) \
2901 XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX]
2902 #define LFACE_STRIKE_THROUGH(LFACE) \
2903 XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX]
2904 #define LFACE_BOX(LFACE) \
2905 XVECTOR (LFACE)->contents[LFACE_BOX_INDEX]
2906 #define LFACE_FONT(LFACE) \
2907 XVECTOR (LFACE)->contents[LFACE_FONT_INDEX]
2908 #define LFACE_INHERIT(LFACE) \
2909 XVECTOR (LFACE)->contents[LFACE_INHERIT_INDEX]
2911 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2912 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2914 #define LFACEP(LFACE) \
2916 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2917 && EQ (XVECTOR (LFACE)->contents[0], Qface))
2922 /* Check consistency of Lisp face attribute vector ATTRS. */
2925 check_lface_attrs (attrs
)
2928 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2929 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2930 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2931 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2932 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2933 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
2934 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
2935 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
2936 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2937 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2938 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2939 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2940 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2941 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2942 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2943 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2944 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2945 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2946 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2947 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2948 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2949 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2950 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2951 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2952 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2953 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2954 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2955 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2956 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2957 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2958 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2959 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2960 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2961 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2962 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2963 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2964 #ifdef HAVE_WINDOW_SYSTEM
2965 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2966 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2967 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2968 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2969 || NILP (attrs
[LFACE_FONT_INDEX
])
2970 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
2975 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2983 xassert (LFACEP (lface
));
2984 check_lface_attrs (XVECTOR (lface
)->contents
);
2988 #else /* GLYPH_DEBUG == 0 */
2990 #define check_lface_attrs(attrs) (void) 0
2991 #define check_lface(lface) (void) 0
2993 #endif /* GLYPH_DEBUG == 0 */
2996 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2997 to make it a symvol. If FACE_NAME is an alias for another face,
2998 return that face's name. */
3001 resolve_face_name (face_name
)
3002 Lisp_Object face_name
;
3004 Lisp_Object aliased
;
3006 if (STRINGP (face_name
))
3007 face_name
= intern (XSTRING (face_name
)->data
);
3009 while (SYMBOLP (face_name
))
3011 aliased
= Fget (face_name
, Qface_alias
);
3015 face_name
= aliased
;
3022 /* Return the face definition of FACE_NAME on frame F. F null means
3023 return the definition for new frames. FACE_NAME may be a string or
3024 a symbol (apparently Emacs 20.2 allowed strings as face names in
3025 face text properties; Ediff uses that). If FACE_NAME is an alias
3026 for another face, return that face's definition. If SIGNAL_P is
3027 non-zero, signal an error if FACE_NAME is not a valid face name.
3028 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3031 static INLINE Lisp_Object
3032 lface_from_face_name (f
, face_name
, signal_p
)
3034 Lisp_Object face_name
;
3039 face_name
= resolve_face_name (face_name
);
3042 lface
= assq_no_quit (face_name
, f
->face_alist
);
3044 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3047 lface
= XCDR (lface
);
3049 signal_error ("Invalid face", face_name
);
3051 check_lface (lface
);
3056 /* Get face attributes of face FACE_NAME from frame-local faces on
3057 frame F. Store the resulting attributes in ATTRS which must point
3058 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3059 is non-zero, signal an error if FACE_NAME does not name a face.
3060 Otherwise, value is zero if FACE_NAME is not a face. */
3063 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3065 Lisp_Object face_name
;
3072 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3075 bcopy (XVECTOR (lface
)->contents
, attrs
,
3076 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3086 /* Non-zero if all attributes in face attribute vector ATTRS are
3087 specified, i.e. are non-nil. */
3090 lface_fully_specified_p (attrs
)
3095 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3096 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
3097 if (UNSPECIFIEDP (attrs
[i
]))
3100 return i
== LFACE_VECTOR_SIZE
;
3103 #ifdef HAVE_WINDOW_SYSTEM
3105 /* Set font-related attributes of Lisp face LFACE from the fullname of
3106 the font opened by FONTNAME. If FORCE_P is zero, set only
3107 unspecified attributes of LFACE. The exception is `font'
3108 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3110 If FONTNAME is not available on frame F,
3111 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3112 If the fullname is not in a valid XLFD format,
3113 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3114 in LFACE and return 1.
3115 Otherwise, return 1. */
3118 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3121 Lisp_Object fontname
;
3122 int force_p
, may_fail_p
;
3124 struct font_name font
;
3129 char *font_name
= XSTRING (fontname
)->data
;
3130 struct font_info
*font_info
;
3132 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3133 fontset
= fs_query_fontset (fontname
, 0);
3135 font_name
= XSTRING (fontset_ascii (fontset
))->data
;
3137 /* Check if FONT_NAME is surely available on the system. Usually
3138 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3139 returns quickly. But, even if FONT_NAME is not yet cached,
3140 caching it now is not futail because we anyway load the font
3143 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3153 font
.name
= STRDUPA (font_info
->full_name
);
3154 have_xlfd_p
= split_font_name (f
, &font
, 1);
3156 /* Set attributes only if unspecified, otherwise face defaults for
3157 new frames would never take effect. If we couldn't get a font
3158 name conforming to XLFD, set normal values. */
3160 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3165 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3166 + strlen (font
.fields
[XLFD_FOUNDRY
])
3168 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3169 font
.fields
[XLFD_FAMILY
]);
3170 val
= build_string (buffer
);
3173 val
= build_string ("*");
3174 LFACE_FAMILY (lface
) = val
;
3177 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3180 pt
= xlfd_point_size (f
, &font
);
3182 pt
= pixel_point_size (f
, font_info
->height
* 10);
3184 LFACE_HEIGHT (lface
) = make_number (pt
);
3187 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3188 LFACE_SWIDTH (lface
)
3189 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3191 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3192 LFACE_WEIGHT (lface
)
3193 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3195 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3197 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3199 LFACE_FONT (lface
) = fontname
;
3204 #endif /* HAVE_WINDOW_SYSTEM */
3207 /* Merges the face height FROM with the face height TO, and returns the
3208 merged height. If FROM is an invalid height, then INVALID is
3209 returned instead. FROM may be a either an absolute face height or a
3210 `relative' height, and TO must be an absolute height. The returned
3211 value is always an absolute height. GCPRO is a lisp value that will
3212 be protected from garbage-collection if this function makes a call
3216 merge_face_heights (from
, to
, invalid
, gcpro
)
3217 Lisp_Object from
, to
, invalid
, gcpro
;
3221 if (INTEGERP (from
))
3222 result
= XINT (from
);
3223 else if (NUMBERP (from
))
3224 result
= XFLOATINT (from
) * XINT (to
);
3225 #if 0 /* Probably not so useful. */
3226 else if (CONSP (from
) && CONSP (XCDR (from
)))
3228 if (EQ (XCAR(from
), Qplus
) || EQ (XCAR(from
), Qminus
))
3230 if (INTEGERP (XCAR (XCDR (from
))))
3232 int inc
= XINT (XCAR (XCDR (from
)));
3233 if (EQ (XCAR (from
), Qminus
))
3236 result
= XFASTINT (to
);
3237 if (result
+ inc
> 0)
3238 /* Note that `underflows' don't mean FROM is invalid, so
3239 we just pin the result at TO if it would otherwise be
3246 else if (FUNCTIONP (from
))
3248 /* Call function with current height as argument.
3249 From is the new height. */
3250 Lisp_Object args
[2], height
;
3251 struct gcpro gcpro1
;
3257 height
= safe_call (2, args
);
3261 if (NUMBERP (height
))
3262 result
= XFLOATINT (height
);
3266 return make_number (result
);
3272 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3273 store the resulting attributes in TO, which must be already be
3274 completely specified and contain only absolute attributes. Every
3275 specified attribute of FROM overrides the corresponding attribute of
3276 TO; relative attributes in FROM are merged with the absolute value in
3277 TO and replace it. CYCLE_CHECK is used internally to detect loops in
3278 face inheritance; it should be Qnil when called from other places. */
3281 merge_face_vectors (f
, from
, to
, cycle_check
)
3283 Lisp_Object
*from
, *to
;
3284 Lisp_Object cycle_check
;
3288 /* If FROM inherits from some other faces, merge their attributes into
3289 TO before merging FROM's direct attributes. Note that an :inherit
3290 attribute of `unspecified' is the same as one of nil; we never
3291 merge :inherit attributes, so nil is more correct, but lots of
3292 other code uses `unspecified' as a generic value for face attributes. */
3293 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3294 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3295 merge_face_inheritance (f
, from
[LFACE_INHERIT_INDEX
], to
, cycle_check
);
3297 /* If TO specifies a :font attribute, and FROM specifies some
3298 font-related attribute, we need to clear TO's :font attribute
3299 (because it will be inconsistent with whatever FROM specifies, and
3300 FROM takes precedence). */
3301 if (!NILP (to
[LFACE_FONT_INDEX
])
3302 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3303 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3304 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3305 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3306 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])))
3307 to
[LFACE_FONT_INDEX
] = Qnil
;
3309 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3310 if (!UNSPECIFIEDP (from
[i
]))
3311 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3312 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
], cycle_check
);
3316 /* TO is always an absolute face, which should inherit from nothing.
3317 We blindly copy the :inherit attribute above and fix it up here. */
3318 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3322 /* Checks the `cycle check' variable CHECK to see if it indicates that
3323 EL is part of a cycle; CHECK must be either Qnil or a value returned
3324 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3325 elements after which a cycle might be suspected; after that many
3326 elements, this macro begins consing in order to keep more precise
3329 Returns NIL if a cycle was detected, otherwise a new value for CHECK
3332 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3333 the caller should make sure that's ok. */
3335 #define CYCLE_CHECK(check, el, suspicious) \
3338 : (INTEGERP (check) \
3339 ? (XFASTINT (check) < (suspicious) \
3340 ? make_number (XFASTINT (check) + 1) \
3341 : Fcons (el, Qnil)) \
3342 : (!NILP (Fmemq ((el), (check))) \
3344 : Fcons ((el), (check)))))
3347 /* Merge face attributes from the face on frame F whose name is
3348 INHERITS, into the vector of face attributes TO; INHERITS may also be
3349 a list of face names, in which case they are applied in order.
3350 CYCLE_CHECK is used to detect loops in face inheritance.
3351 Returns true if any of the inherited attributes are `font-related'. */
3354 merge_face_inheritance (f
, inherit
, to
, cycle_check
)
3356 Lisp_Object inherit
;
3358 Lisp_Object cycle_check
;
3360 if (SYMBOLP (inherit
) && !EQ (inherit
, Qunspecified
))
3361 /* Inherit from the named face INHERIT. */
3365 /* Make sure we're not in an inheritance loop. */
3366 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3367 if (NILP (cycle_check
))
3368 /* Cycle detected, ignore any further inheritance. */
3371 lface
= lface_from_face_name (f
, inherit
, 0);
3373 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, cycle_check
);
3375 else if (CONSP (inherit
))
3376 /* Handle a list of inherited faces by calling ourselves recursively
3377 on each element. Note that we only do so for symbol elements, so
3378 it's not possible to infinitely recurse. */
3380 while (CONSP (inherit
))
3382 if (SYMBOLP (XCAR (inherit
)))
3383 merge_face_inheritance (f
, XCAR (inherit
), to
, cycle_check
);
3385 /* Check for a circular inheritance list. */
3386 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3387 if (NILP (cycle_check
))
3388 /* Cycle detected. */
3391 inherit
= XCDR (inherit
);
3397 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3398 is a face property, determine the resulting face attributes on
3399 frame F, and store them in TO. PROP may be a single face
3400 specification or a list of such specifications. Each face
3401 specification can be
3403 1. A symbol or string naming a Lisp face.
3405 2. A property list of the form (KEYWORD VALUE ...) where each
3406 KEYWORD is a face attribute name, and value is an appropriate value
3409 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3410 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3411 for compatibility with 20.2.
3413 Face specifications earlier in lists take precedence over later
3417 merge_face_vector_with_property (f
, to
, prop
)
3424 Lisp_Object first
= XCAR (prop
);
3426 if (EQ (first
, Qforeground_color
)
3427 || EQ (first
, Qbackground_color
))
3429 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3430 . COLOR). COLOR must be a string. */
3431 Lisp_Object color_name
= XCDR (prop
);
3432 Lisp_Object color
= first
;
3434 if (STRINGP (color_name
))
3436 if (EQ (color
, Qforeground_color
))
3437 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3439 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3442 add_to_log ("Invalid face color", color_name
, Qnil
);
3444 else if (SYMBOLP (first
)
3445 && *XSYMBOL (first
)->name
->data
== ':')
3447 /* Assume this is the property list form. */
3448 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3450 Lisp_Object keyword
= XCAR (prop
);
3451 Lisp_Object value
= XCAR (XCDR (prop
));
3453 if (EQ (keyword
, QCfamily
))
3455 if (STRINGP (value
))
3456 to
[LFACE_FAMILY_INDEX
] = value
;
3458 add_to_log ("Invalid face font family", value
, Qnil
);
3460 else if (EQ (keyword
, QCheight
))
3462 Lisp_Object new_height
=
3463 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3466 if (NILP (new_height
))
3467 add_to_log ("Invalid face font height", value
, Qnil
);
3469 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3471 else if (EQ (keyword
, QCweight
))
3474 && face_numeric_weight (value
) >= 0)
3475 to
[LFACE_WEIGHT_INDEX
] = value
;
3477 add_to_log ("Invalid face weight", value
, Qnil
);
3479 else if (EQ (keyword
, QCslant
))
3482 && face_numeric_slant (value
) >= 0)
3483 to
[LFACE_SLANT_INDEX
] = value
;
3485 add_to_log ("Invalid face slant", value
, Qnil
);
3487 else if (EQ (keyword
, QCunderline
))
3492 to
[LFACE_UNDERLINE_INDEX
] = value
;
3494 add_to_log ("Invalid face underline", value
, Qnil
);
3496 else if (EQ (keyword
, QCoverline
))
3501 to
[LFACE_OVERLINE_INDEX
] = value
;
3503 add_to_log ("Invalid face overline", value
, Qnil
);
3505 else if (EQ (keyword
, QCstrike_through
))
3510 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3512 add_to_log ("Invalid face strike-through", value
, Qnil
);
3514 else if (EQ (keyword
, QCbox
))
3517 value
= make_number (1);
3518 if (INTEGERP (value
)
3522 to
[LFACE_BOX_INDEX
] = value
;
3524 add_to_log ("Invalid face box", value
, Qnil
);
3526 else if (EQ (keyword
, QCinverse_video
)
3527 || EQ (keyword
, QCreverse_video
))
3529 if (EQ (value
, Qt
) || NILP (value
))
3530 to
[LFACE_INVERSE_INDEX
] = value
;
3532 add_to_log ("Invalid face inverse-video", value
, Qnil
);
3534 else if (EQ (keyword
, QCforeground
))
3536 if (STRINGP (value
))
3537 to
[LFACE_FOREGROUND_INDEX
] = value
;
3539 add_to_log ("Invalid face foreground", value
, Qnil
);
3541 else if (EQ (keyword
, QCbackground
))
3543 if (STRINGP (value
))
3544 to
[LFACE_BACKGROUND_INDEX
] = value
;
3546 add_to_log ("Invalid face background", value
, Qnil
);
3548 else if (EQ (keyword
, QCstipple
))
3550 #ifdef HAVE_X_WINDOWS
3551 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3552 if (!NILP (pixmap_p
))
3553 to
[LFACE_STIPPLE_INDEX
] = value
;
3555 add_to_log ("Invalid face stipple", value
, Qnil
);
3558 else if (EQ (keyword
, QCwidth
))
3561 && face_numeric_swidth (value
) >= 0)
3562 to
[LFACE_SWIDTH_INDEX
] = value
;
3564 add_to_log ("Invalid face width", value
, Qnil
);
3566 else if (EQ (keyword
, QCinherit
))
3568 if (SYMBOLP (value
))
3569 to
[LFACE_INHERIT_INDEX
] = value
;
3573 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3574 if (!SYMBOLP (XCAR (tail
)))
3577 to
[LFACE_INHERIT_INDEX
] = value
;
3579 add_to_log ("Invalid face inherit", value
, Qnil
);
3583 add_to_log ("Invalid attribute %s in face property",
3586 prop
= XCDR (XCDR (prop
));
3591 /* This is a list of face specs. Specifications at the
3592 beginning of the list take precedence over later
3593 specifications, so we have to merge starting with the
3594 last specification. */
3595 Lisp_Object next
= XCDR (prop
);
3597 merge_face_vector_with_property (f
, to
, next
);
3598 merge_face_vector_with_property (f
, to
, first
);
3603 /* PROP ought to be a face name. */
3604 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3606 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3608 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, Qnil
);
3613 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3614 Sinternal_make_lisp_face
, 1, 2, 0,
3615 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3616 If FACE was not known as a face before, create a new one.\n\
3617 If optional argument FRAME is specified, make a frame-local face\n\
3618 for that frame. Otherwise operate on the global face definition.\n\
3619 Value is a vector of face attributes.")
3621 Lisp_Object face
, frame
;
3623 Lisp_Object global_lface
, lface
;
3627 CHECK_SYMBOL (face
, 0);
3628 global_lface
= lface_from_face_name (NULL
, face
, 0);
3632 CHECK_LIVE_FRAME (frame
, 1);
3634 lface
= lface_from_face_name (f
, face
, 0);
3637 f
= NULL
, lface
= Qnil
;
3639 /* Add a global definition if there is none. */
3640 if (NILP (global_lface
))
3642 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3644 XVECTOR (global_lface
)->contents
[0] = Qface
;
3645 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3646 Vface_new_frame_defaults
);
3648 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3649 face id to Lisp face is given by the vector lface_id_to_name.
3650 The mapping from Lisp face to Lisp face id is given by the
3651 property `face' of the Lisp face name. */
3652 if (next_lface_id
== lface_id_to_name_size
)
3654 int new_size
= max (50, 2 * lface_id_to_name_size
);
3655 int sz
= new_size
* sizeof *lface_id_to_name
;
3656 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3657 lface_id_to_name_size
= new_size
;
3660 lface_id_to_name
[next_lface_id
] = face
;
3661 Fput (face
, Qface
, make_number (next_lface_id
));
3665 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3666 XVECTOR (global_lface
)->contents
[i
] = Qunspecified
;
3668 /* Add a frame-local definition. */
3673 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3675 XVECTOR (lface
)->contents
[0] = Qface
;
3676 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3679 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3680 XVECTOR (lface
)->contents
[i
] = Qunspecified
;
3683 lface
= global_lface
;
3685 xassert (LFACEP (lface
));
3686 check_lface (lface
);
3691 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3692 Sinternal_lisp_face_p
, 1, 2, 0,
3693 "Return non-nil if FACE names a face.\n\
3694 If optional second parameter FRAME is non-nil, check for the\n\
3695 existence of a frame-local face with name FACE on that frame.\n\
3696 Otherwise check for the existence of a global face.")
3698 Lisp_Object face
, frame
;
3704 CHECK_LIVE_FRAME (frame
, 1);
3705 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3708 lface
= lface_from_face_name (NULL
, face
, 0);
3714 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3715 Sinternal_copy_lisp_face
, 4, 4, 0,
3716 "Copy face FROM to TO.\n\
3717 If FRAME it t, copy the global face definition of FROM to the\n\
3718 global face definition of TO. Otherwise, copy the frame-local\n\
3719 definition of FROM on FRAME to the frame-local definition of TO\n\
3720 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3723 (from
, to
, frame
, new_frame
)
3724 Lisp_Object from
, to
, frame
, new_frame
;
3726 Lisp_Object lface
, copy
;
3728 CHECK_SYMBOL (from
, 0);
3729 CHECK_SYMBOL (to
, 1);
3730 if (NILP (new_frame
))
3735 /* Copy global definition of FROM. We don't make copies of
3736 strings etc. because 20.2 didn't do it either. */
3737 lface
= lface_from_face_name (NULL
, from
, 1);
3738 copy
= Finternal_make_lisp_face (to
, Qnil
);
3742 /* Copy frame-local definition of FROM. */
3743 CHECK_LIVE_FRAME (frame
, 2);
3744 CHECK_LIVE_FRAME (new_frame
, 3);
3745 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3746 copy
= Finternal_make_lisp_face (to
, new_frame
);
3749 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3750 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3756 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3757 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3758 "Set attribute ATTR of FACE to VALUE.\n\
3759 FRAME being a frame means change the face on that frame.\n\
3760 FRAME nil means change change the face of the selected frame.\n\
3761 FRAME t means change the default for new frames.\n\
3762 FRAME 0 means change the face on all frames, and change the default\n\
3764 (face
, attr
, value
, frame
)
3765 Lisp_Object face
, attr
, value
, frame
;
3768 Lisp_Object old_value
= Qnil
;
3769 /* Set 1 if ATTR is QCfont. */
3770 int font_attr_p
= 0;
3771 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3772 int font_related_attr_p
= 0;
3774 CHECK_SYMBOL (face
, 0);
3775 CHECK_SYMBOL (attr
, 1);
3777 face
= resolve_face_name (face
);
3779 /* If FRAME is 0, change face on all frames, and change the
3780 default for new frames. */
3781 if (INTEGERP (frame
) && XINT (frame
) == 0)
3784 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3785 FOR_EACH_FRAME (tail
, frame
)
3786 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3790 /* Set lface to the Lisp attribute vector of FACE. */
3792 lface
= lface_from_face_name (NULL
, face
, 1);
3796 frame
= selected_frame
;
3798 CHECK_LIVE_FRAME (frame
, 3);
3799 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3801 /* If a frame-local face doesn't exist yet, create one. */
3803 lface
= Finternal_make_lisp_face (face
, frame
);
3806 if (EQ (attr
, QCfamily
))
3808 if (!UNSPECIFIEDP (value
))
3810 CHECK_STRING (value
, 3);
3811 if (XSTRING (value
)->size
== 0)
3812 signal_error ("Invalid face family", value
);
3814 old_value
= LFACE_FAMILY (lface
);
3815 LFACE_FAMILY (lface
) = value
;
3816 font_related_attr_p
= 1;
3818 else if (EQ (attr
, QCheight
))
3820 if (!UNSPECIFIEDP (value
))
3823 (EQ (face
, Qdefault
) ? value
:
3824 /* The default face must have an absolute size, otherwise, we do
3825 a test merge with a random height to see if VALUE's ok. */
3826 merge_face_heights (value
, make_number(10), Qnil
, Qnil
));
3828 if (!INTEGERP(test
) || XINT(test
) <= 0)
3829 signal_error ("Invalid face height", value
);
3832 old_value
= LFACE_HEIGHT (lface
);
3833 LFACE_HEIGHT (lface
) = value
;
3834 font_related_attr_p
= 1;
3836 else if (EQ (attr
, QCweight
))
3838 if (!UNSPECIFIEDP (value
))
3840 CHECK_SYMBOL (value
, 3);
3841 if (face_numeric_weight (value
) < 0)
3842 signal_error ("Invalid face weight", value
);
3844 old_value
= LFACE_WEIGHT (lface
);
3845 LFACE_WEIGHT (lface
) = value
;
3846 font_related_attr_p
= 1;
3848 else if (EQ (attr
, QCslant
))
3850 if (!UNSPECIFIEDP (value
))
3852 CHECK_SYMBOL (value
, 3);
3853 if (face_numeric_slant (value
) < 0)
3854 signal_error ("Invalid face slant", value
);
3856 old_value
= LFACE_SLANT (lface
);
3857 LFACE_SLANT (lface
) = value
;
3858 font_related_attr_p
= 1;
3860 else if (EQ (attr
, QCunderline
))
3862 if (!UNSPECIFIEDP (value
))
3863 if ((SYMBOLP (value
)
3865 && !EQ (value
, Qnil
))
3866 /* Underline color. */
3868 && XSTRING (value
)->size
== 0))
3869 signal_error ("Invalid face underline", value
);
3871 old_value
= LFACE_UNDERLINE (lface
);
3872 LFACE_UNDERLINE (lface
) = value
;
3874 else if (EQ (attr
, QCoverline
))
3876 if (!UNSPECIFIEDP (value
))
3877 if ((SYMBOLP (value
)
3879 && !EQ (value
, Qnil
))
3880 /* Overline color. */
3882 && XSTRING (value
)->size
== 0))
3883 signal_error ("Invalid face overline", value
);
3885 old_value
= LFACE_OVERLINE (lface
);
3886 LFACE_OVERLINE (lface
) = value
;
3888 else if (EQ (attr
, QCstrike_through
))
3890 if (!UNSPECIFIEDP (value
))
3891 if ((SYMBOLP (value
)
3893 && !EQ (value
, Qnil
))
3894 /* Strike-through color. */
3896 && XSTRING (value
)->size
== 0))
3897 signal_error ("Invalid face strike-through", value
);
3899 old_value
= LFACE_STRIKE_THROUGH (lface
);
3900 LFACE_STRIKE_THROUGH (lface
) = value
;
3902 else if (EQ (attr
, QCbox
))
3906 /* Allow t meaning a simple box of width 1 in foreground color
3909 value
= make_number (1);
3911 if (UNSPECIFIEDP (value
))
3913 else if (NILP (value
))
3915 else if (INTEGERP (value
))
3916 valid_p
= XINT (value
) > 0;
3917 else if (STRINGP (value
))
3918 valid_p
= XSTRING (value
)->size
> 0;
3919 else if (CONSP (value
))
3935 if (EQ (k
, QCline_width
))
3937 if (!INTEGERP (v
) || XINT (v
) <= 0)
3940 else if (EQ (k
, QCcolor
))
3942 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3945 else if (EQ (k
, QCstyle
))
3947 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3954 valid_p
= NILP (tem
);
3960 signal_error ("Invalid face box", value
);
3962 old_value
= LFACE_BOX (lface
);
3963 LFACE_BOX (lface
) = value
;
3965 else if (EQ (attr
, QCinverse_video
)
3966 || EQ (attr
, QCreverse_video
))
3968 if (!UNSPECIFIEDP (value
))
3970 CHECK_SYMBOL (value
, 3);
3971 if (!EQ (value
, Qt
) && !NILP (value
))
3972 signal_error ("Invalid inverse-video face attribute value", value
);
3974 old_value
= LFACE_INVERSE (lface
);
3975 LFACE_INVERSE (lface
) = value
;
3977 else if (EQ (attr
, QCforeground
))
3979 if (!UNSPECIFIEDP (value
))
3981 /* Don't check for valid color names here because it depends
3982 on the frame (display) whether the color will be valid
3983 when the face is realized. */
3984 CHECK_STRING (value
, 3);
3985 if (XSTRING (value
)->size
== 0)
3986 signal_error ("Empty foreground color value", value
);
3988 old_value
= LFACE_FOREGROUND (lface
);
3989 LFACE_FOREGROUND (lface
) = value
;
3991 else if (EQ (attr
, QCbackground
))
3993 if (!UNSPECIFIEDP (value
))
3995 /* Don't check for valid color names here because it depends
3996 on the frame (display) whether the color will be valid
3997 when the face is realized. */
3998 CHECK_STRING (value
, 3);
3999 if (XSTRING (value
)->size
== 0)
4000 signal_error ("Empty background color value", value
);
4002 old_value
= LFACE_BACKGROUND (lface
);
4003 LFACE_BACKGROUND (lface
) = value
;
4005 else if (EQ (attr
, QCstipple
))
4007 #ifdef HAVE_X_WINDOWS
4008 if (!UNSPECIFIEDP (value
)
4010 && NILP (Fbitmap_spec_p (value
)))
4011 signal_error ("Invalid stipple attribute", value
);
4012 old_value
= LFACE_STIPPLE (lface
);
4013 LFACE_STIPPLE (lface
) = value
;
4014 #endif /* HAVE_X_WINDOWS */
4016 else if (EQ (attr
, QCwidth
))
4018 if (!UNSPECIFIEDP (value
))
4020 CHECK_SYMBOL (value
, 3);
4021 if (face_numeric_swidth (value
) < 0)
4022 signal_error ("Invalid face width", value
);
4024 old_value
= LFACE_SWIDTH (lface
);
4025 LFACE_SWIDTH (lface
) = value
;
4026 font_related_attr_p
= 1;
4028 else if (EQ (attr
, QCfont
))
4030 #ifdef HAVE_WINDOW_SYSTEM
4031 /* Set font-related attributes of the Lisp face from an
4036 CHECK_STRING (value
, 3);
4038 f
= SELECTED_FRAME ();
4040 f
= check_x_frame (frame
);
4042 /* VALUE may be a fontset name or an alias of fontset. In such
4043 a case, use the base fontset name. */
4044 tmp
= Fquery_fontset (value
, Qnil
);
4048 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4049 signal_error ("Invalid font or fontset name", value
);
4052 #endif /* HAVE_WINDOW_SYSTEM */
4054 else if (EQ (attr
, QCinherit
))
4057 if (SYMBOLP (value
))
4060 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4061 if (!SYMBOLP (XCAR (tail
)))
4064 LFACE_INHERIT (lface
) = value
;
4066 signal_error ("Invalid face inheritance", value
);
4068 else if (EQ (attr
, QCbold
))
4070 old_value
= LFACE_WEIGHT (lface
);
4071 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4072 font_related_attr_p
= 1;
4074 else if (EQ (attr
, QCitalic
))
4076 old_value
= LFACE_SLANT (lface
);
4077 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4078 font_related_attr_p
= 1;
4081 signal_error ("Invalid face attribute name", attr
);
4083 if (font_related_attr_p
4084 && !UNSPECIFIEDP (value
))
4085 /* If a font-related attribute other than QCfont is specified, the
4086 original `font' attribute nor that of default face is useless
4087 to determine a new font. Thus, we set it to nil so that font
4088 selection mechanism doesn't use it. */
4089 LFACE_FONT (lface
) = Qnil
;
4091 /* Changing a named face means that all realized faces depending on
4092 that face are invalid. Since we cannot tell which realized faces
4093 depend on the face, make sure they are all removed. This is done
4094 by incrementing face_change_count. The next call to
4095 init_iterator will then free realized faces. */
4097 && (EQ (attr
, QCfont
)
4098 || NILP (Fequal (old_value
, value
))))
4100 ++face_change_count
;
4101 ++windows_or_buffers_changed
;
4104 #ifdef HAVE_WINDOW_SYSTEM
4106 if (!UNSPECIFIEDP (value
)
4107 && NILP (Fequal (old_value
, value
)))
4113 if (EQ (face
, Qdefault
))
4115 /* Changed font-related attributes of the `default' face are
4116 reflected in changed `font' frame parameters. */
4117 if ((font_related_attr_p
|| font_attr_p
)
4118 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4119 set_font_frame_param (frame
, lface
);
4120 else if (EQ (attr
, QCforeground
))
4121 param
= Qforeground_color
;
4122 else if (EQ (attr
, QCbackground
))
4123 param
= Qbackground_color
;
4126 else if (EQ (face
, Qscroll_bar
))
4128 /* Changing the colors of `scroll-bar' sets frame parameters
4129 `scroll-bar-foreground' and `scroll-bar-background'. */
4130 if (EQ (attr
, QCforeground
))
4131 param
= Qscroll_bar_foreground
;
4132 else if (EQ (attr
, QCbackground
))
4133 param
= Qscroll_bar_background
;
4135 #endif /* not WINDOWSNT */
4136 else if (EQ (face
, Qborder
))
4138 /* Changing background color of `border' sets frame parameter
4140 if (EQ (attr
, QCbackground
))
4141 param
= Qborder_color
;
4143 else if (EQ (face
, Qcursor
))
4145 /* Changing background color of `cursor' sets frame parameter
4147 if (EQ (attr
, QCbackground
))
4148 param
= Qcursor_color
;
4150 else if (EQ (face
, Qmouse
))
4152 /* Changing background color of `mouse' sets frame parameter
4154 if (EQ (attr
, QCbackground
))
4155 param
= Qmouse_color
;
4157 else if (EQ (face
, Qmenu
))
4158 ++menu_face_change_count
;
4162 /* Update `default-frame-alist', which is used for new frames. */
4164 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4167 /* Update the current frame's parameters. */
4170 cons
= XCAR (Vparam_value_alist
);
4171 XCAR (cons
) = param
;
4172 XCDR (cons
) = value
;
4173 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4177 #endif /* HAVE_WINDOW_SYSTEM */
4183 #ifdef HAVE_WINDOW_SYSTEM
4185 /* Set the `font' frame parameter of FRAME determined from `default'
4186 face attributes LFACE. If a face or fontset name is explicitely
4187 specfied in LFACE, use it as is. Otherwise, determine a font name
4188 from the other font-related atrributes of LFACE. In that case, if
4189 there's no matching font, signals an error. */
4192 set_font_frame_param (frame
, lface
)
4193 Lisp_Object frame
, lface
;
4195 struct frame
*f
= XFRAME (frame
);
4196 Lisp_Object font_name
;
4199 if (STRINGP (LFACE_FONT (lface
)))
4200 font_name
= LFACE_FONT (lface
);
4203 /* Choose a font name that reflects LFACE's attributes and has
4204 the registry and encoding pattern specified in the default
4205 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4206 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0);
4208 error ("No font matches the specified attribute");
4209 font_name
= build_string (font
);
4213 Fmodify_frame_parameters (frame
, Fcons (Fcons (Qfont
, font_name
), Qnil
));
4217 /* Update the corresponding face when frame parameter PARAM on frame F
4218 has been assigned the value NEW_VALUE. */
4221 update_face_from_frame_parameter (f
, param
, new_value
)
4223 Lisp_Object param
, new_value
;
4227 /* If there are no faces yet, give up. This is the case when called
4228 from Fx_create_frame, and we do the necessary things later in
4229 face-set-after-frame-defaults. */
4230 if (NILP (f
->face_alist
))
4233 if (EQ (param
, Qforeground_color
))
4235 lface
= lface_from_face_name (f
, Qdefault
, 1);
4236 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4237 ? new_value
: Qunspecified
);
4238 realize_basic_faces (f
);
4240 else if (EQ (param
, Qbackground_color
))
4244 /* Changing the background color might change the background
4245 mode, so that we have to load new defface specs. Call
4246 frame-update-face-colors to do that. */
4247 XSETFRAME (frame
, f
);
4248 call1 (Qframe_update_face_colors
, frame
);
4250 lface
= lface_from_face_name (f
, Qdefault
, 1);
4251 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4252 ? new_value
: Qunspecified
);
4253 realize_basic_faces (f
);
4255 if (EQ (param
, Qborder_color
))
4257 lface
= lface_from_face_name (f
, Qborder
, 1);
4258 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4259 ? new_value
: Qunspecified
);
4261 else if (EQ (param
, Qcursor_color
))
4263 lface
= lface_from_face_name (f
, Qcursor
, 1);
4264 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4265 ? new_value
: Qunspecified
);
4267 else if (EQ (param
, Qmouse_color
))
4269 lface
= lface_from_face_name (f
, Qmouse
, 1);
4270 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4271 ? new_value
: Qunspecified
);
4276 /* Get the value of X resource RESOURCE, class CLASS for the display
4277 of frame FRAME. This is here because ordinary `x-get-resource'
4278 doesn't take a frame argument. */
4280 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4281 Sinternal_face_x_get_resource
, 3, 3, 0, "")
4282 (resource
, class, frame
)
4283 Lisp_Object resource
, class, frame
;
4285 Lisp_Object value
= Qnil
;
4288 CHECK_STRING (resource
, 0);
4289 CHECK_STRING (class, 1);
4290 CHECK_LIVE_FRAME (frame
, 2);
4292 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4293 resource
, class, Qnil
, Qnil
);
4295 #endif /* not macintosh */
4296 #endif /* not WINDOWSNT */
4301 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4302 If VALUE is "on" or "true", return t. If VALUE is "off" or
4303 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4304 error; if SIGNAL_P is zero, return 0. */
4307 face_boolean_x_resource_value (value
, signal_p
)
4311 Lisp_Object result
= make_number (0);
4313 xassert (STRINGP (value
));
4315 if (xstricmp (XSTRING (value
)->data
, "on") == 0
4316 || xstricmp (XSTRING (value
)->data
, "true") == 0)
4318 else if (xstricmp (XSTRING (value
)->data
, "off") == 0
4319 || xstricmp (XSTRING (value
)->data
, "false") == 0)
4321 else if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
4322 result
= Qunspecified
;
4324 signal_error ("Invalid face attribute value from X resource", value
);
4330 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4331 Finternal_set_lisp_face_attribute_from_resource
,
4332 Sinternal_set_lisp_face_attribute_from_resource
,
4334 (face
, attr
, value
, frame
)
4335 Lisp_Object face
, attr
, value
, frame
;
4337 CHECK_SYMBOL (face
, 0);
4338 CHECK_SYMBOL (attr
, 1);
4339 CHECK_STRING (value
, 2);
4341 if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
4342 value
= Qunspecified
;
4343 else if (EQ (attr
, QCheight
))
4345 value
= Fstring_to_number (value
, make_number (10));
4346 if (XINT (value
) <= 0)
4347 signal_error ("Invalid face height from X resource", value
);
4349 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4350 value
= face_boolean_x_resource_value (value
, 1);
4351 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4352 value
= intern (XSTRING (value
)->data
);
4353 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4354 value
= face_boolean_x_resource_value (value
, 1);
4355 else if (EQ (attr
, QCunderline
)
4356 || EQ (attr
, QCoverline
)
4357 || EQ (attr
, QCstrike_through
)
4358 || EQ (attr
, QCbox
))
4360 Lisp_Object boolean_value
;
4362 /* If the result of face_boolean_x_resource_value is t or nil,
4363 VALUE does NOT specify a color. */
4364 boolean_value
= face_boolean_x_resource_value (value
, 0);
4365 if (SYMBOLP (boolean_value
))
4366 value
= boolean_value
;
4369 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4372 #endif /* HAVE_WINDOW_SYSTEM */
4375 #ifdef HAVE_X_WINDOWS
4376 /***********************************************************************
4378 ***********************************************************************/
4380 #ifdef USE_X_TOOLKIT
4382 #include "../lwlib/lwlib-utils.h"
4384 /* Structure used to pass X resources to functions called via
4385 XtApplyToWidgets. */
4396 static void xm_apply_resources
P_ ((Widget
, XtPointer
));
4397 static void xm_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
4400 /* Set widget W's X resources from P which points to an x_resources
4401 structure. If W is a cascade button, apply resources to W's
4405 xm_apply_resources (w
, p
)
4410 struct x_resources
*res
= (struct x_resources
*) p
;
4412 XtSetValues (w
, res
->av
, res
->ac
);
4413 XtVaGetValues (w
, XmNsubMenuId
, &submenu
, NULL
);
4416 XtSetValues (submenu
, res
->av
, res
->ac
);
4417 XtApplyToWidgets (submenu
, xm_apply_resources
, p
);
4422 /* Set X resources of menu-widget WIDGET on frame F from face `menu'.
4423 This is the LessTif/Motif version. As of LessTif 0.88 it has the
4426 1. Setting the XmNfontList resource leads to an infinite loop
4427 somewhere in LessTif. */
4430 xm_set_menu_resources_from_menu_face (f
, widget
)
4440 lface
= lface_from_face_name (f
, Qmenu
, 1);
4441 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4443 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4445 XtSetArg (av
[ac
], XmNforeground
, face
->foreground
);
4449 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4451 XtSetArg (av
[ac
], XmNbackground
, face
->background
);
4455 /* If any font-related attribute of `menu' is set, set the font. */
4457 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4458 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4459 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4460 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4461 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4463 #if 0 /* Setting the font leads to an infinite loop somewhere
4464 in LessTif during geometry computation. */
4466 fe
= XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT
, face
->font
);
4467 fl
= XmFontListAppendEntry (NULL
, fe
);
4468 XtSetArg (av
[ac
], XmNfontList
, fl
);
4473 xassert (ac
<= sizeof av
/ sizeof *av
);
4477 struct x_resources res
;
4479 XtSetValues (widget
, av
, ac
);
4480 res
.av
= av
, res
.ac
= ac
;
4481 XtApplyToWidgets (widget
, xm_apply_resources
, &res
);
4483 XmFontListFree (fl
);
4487 #endif /* USE_MOTIF */
4491 static void xl_apply_resources
P_ ((Widget
, XtPointer
));
4492 static void xl_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
4495 /* Set widget W's resources from P which points to an x_resources
4499 xl_apply_resources (widget
, p
)
4503 struct x_resources
*res
= (struct x_resources
*) p
;
4504 XtSetValues (widget
, res
->av
, res
->ac
);
4508 /* On frame F, set X resources of menu-widget WIDGET from face `menu'.
4509 This is the Lucid version. */
4512 xl_set_menu_resources_from_menu_face (f
, widget
)
4521 lface
= lface_from_face_name (f
, Qmenu
, 1);
4522 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4524 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4526 XtSetArg (av
[ac
], XtNforeground
, face
->foreground
);
4530 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4532 XtSetArg (av
[ac
], XtNbackground
, face
->background
);
4537 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4538 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4539 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4540 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4541 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4543 XtSetArg (av
[ac
], XtNfont
, face
->font
);
4549 struct x_resources res
;
4551 XtSetValues (widget
, av
, ac
);
4553 /* We must do children here in case we're handling a pop-up menu
4554 in which case WIDGET is a popup shell. XtApplyToWidgets
4555 is a function from lwlib. */
4556 res
.av
= av
, res
.ac
= ac
;
4557 XtApplyToWidgets (widget
, xl_apply_resources
, &res
);
4561 #endif /* USE_LUCID */
4564 /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */
4567 x_set_menu_resources_from_menu_face (f
, widget
)
4571 /* Realized faces may have been removed on frame F, e.g. because of
4572 face attribute changes. Recompute them, if necessary, since we
4573 will need the `menu' face. */
4574 if (f
->face_cache
->used
== 0)
4575 recompute_basic_faces (f
);
4579 xl_set_menu_resources_from_menu_face (f
, widget
);
4582 xm_set_menu_resources_from_menu_face (f
, widget
);
4587 #endif /* USE_X_TOOLKIT */
4589 #endif /* HAVE_X_WINDOWS */
4593 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4594 Sinternal_get_lisp_face_attribute
,
4596 "Return face attribute KEYWORD of face SYMBOL.\n\
4597 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
4598 face attribute name, signal an error.\n\
4599 If the optional argument FRAME is given, report on face FACE in that\n\
4600 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
4601 frames). If FRAME is omitted or nil, use the selected frame.")
4602 (symbol
, keyword
, frame
)
4603 Lisp_Object symbol
, keyword
, frame
;
4605 Lisp_Object lface
, value
= Qnil
;
4607 CHECK_SYMBOL (symbol
, 0);
4608 CHECK_SYMBOL (keyword
, 1);
4611 lface
= lface_from_face_name (NULL
, symbol
, 1);
4615 frame
= selected_frame
;
4616 CHECK_LIVE_FRAME (frame
, 2);
4617 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4620 if (EQ (keyword
, QCfamily
))
4621 value
= LFACE_FAMILY (lface
);
4622 else if (EQ (keyword
, QCheight
))
4623 value
= LFACE_HEIGHT (lface
);
4624 else if (EQ (keyword
, QCweight
))
4625 value
= LFACE_WEIGHT (lface
);
4626 else if (EQ (keyword
, QCslant
))
4627 value
= LFACE_SLANT (lface
);
4628 else if (EQ (keyword
, QCunderline
))
4629 value
= LFACE_UNDERLINE (lface
);
4630 else if (EQ (keyword
, QCoverline
))
4631 value
= LFACE_OVERLINE (lface
);
4632 else if (EQ (keyword
, QCstrike_through
))
4633 value
= LFACE_STRIKE_THROUGH (lface
);
4634 else if (EQ (keyword
, QCbox
))
4635 value
= LFACE_BOX (lface
);
4636 else if (EQ (keyword
, QCinverse_video
)
4637 || EQ (keyword
, QCreverse_video
))
4638 value
= LFACE_INVERSE (lface
);
4639 else if (EQ (keyword
, QCforeground
))
4640 value
= LFACE_FOREGROUND (lface
);
4641 else if (EQ (keyword
, QCbackground
))
4642 value
= LFACE_BACKGROUND (lface
);
4643 else if (EQ (keyword
, QCstipple
))
4644 value
= LFACE_STIPPLE (lface
);
4645 else if (EQ (keyword
, QCwidth
))
4646 value
= LFACE_SWIDTH (lface
);
4647 else if (EQ (keyword
, QCinherit
))
4648 value
= LFACE_INHERIT (lface
);
4649 else if (EQ (keyword
, QCfont
))
4650 value
= LFACE_FONT (lface
);
4652 signal_error ("Invalid face attribute name", keyword
);
4658 DEFUN ("internal-lisp-face-attribute-values",
4659 Finternal_lisp_face_attribute_values
,
4660 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4661 "Return a list of valid discrete values for face attribute ATTR.\n\
4662 Value is nil if ATTR doesn't have a discrete set of valid values.")
4666 Lisp_Object result
= Qnil
;
4668 CHECK_SYMBOL (attr
, 0);
4670 if (EQ (attr
, QCweight
)
4671 || EQ (attr
, QCslant
)
4672 || EQ (attr
, QCwidth
))
4674 /* Extract permissible symbols from tables. */
4675 struct table_entry
*table
;
4678 if (EQ (attr
, QCweight
))
4679 table
= weight_table
, dim
= DIM (weight_table
);
4680 else if (EQ (attr
, QCslant
))
4681 table
= slant_table
, dim
= DIM (slant_table
);
4683 table
= swidth_table
, dim
= DIM (swidth_table
);
4685 for (i
= 0; i
< dim
; ++i
)
4687 Lisp_Object symbol
= *table
[i
].symbol
;
4688 Lisp_Object tail
= result
;
4691 && !EQ (XCAR (tail
), symbol
))
4695 result
= Fcons (symbol
, result
);
4698 else if (EQ (attr
, QCunderline
))
4699 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4700 else if (EQ (attr
, QCoverline
))
4701 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4702 else if (EQ (attr
, QCstrike_through
))
4703 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4704 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4705 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4711 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4712 Sinternal_merge_in_global_face
, 2, 2, 0,
4713 "Add attributes from frame-default definition of FACE to FACE on FRAME.\n\
4714 Default face attributes override any local face attributes.")
4716 Lisp_Object face
, frame
;
4719 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4721 CHECK_LIVE_FRAME (frame
, 1);
4722 global_lface
= lface_from_face_name (NULL
, face
, 1);
4723 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4724 if (NILP (local_lface
))
4725 local_lface
= Finternal_make_lisp_face (face
, frame
);
4727 /* Make every specified global attribute override the local one.
4728 BEWARE!! This is only used from `face-set-after-frame-default' where
4729 the local frame is defined from default specs in `face-defface-spec'
4730 and those should be overridden by global settings. Hence the strange
4731 "global before local" priority. */
4732 lvec
= XVECTOR (local_lface
)->contents
;
4733 gvec
= XVECTOR (global_lface
)->contents
;
4734 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4735 if (! UNSPECIFIEDP (gvec
[i
]))
4742 /* The following function is implemented for compatibility with 20.2.
4743 The function is used in x-resolve-fonts when it is asked to
4744 return fonts with the same size as the font of a face. This is
4745 done in fontset.el. */
4747 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4748 "Return the font name of face FACE, or nil if it is unspecified.\n\
4749 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4750 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4751 The font default for a face is either nil, or a list\n\
4752 of the form (bold), (italic) or (bold italic).\n\
4753 If FRAME is omitted or nil, use the selected frame.")
4755 Lisp_Object face
, frame
;
4759 Lisp_Object result
= Qnil
;
4760 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4762 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4763 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4764 result
= Fcons (Qbold
, result
);
4766 if (!NILP (LFACE_SLANT (lface
))
4767 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4768 result
= Fcons (Qitalic
, result
);
4774 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4775 int face_id
= lookup_named_face (f
, face
, 0);
4776 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4777 return face
? build_string (face
->font_name
) : Qnil
;
4782 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4783 all attributes are `equal'. Tries to be fast because this function
4784 is called quite often. */
4787 lface_equal_p (v1
, v2
)
4788 Lisp_Object
*v1
, *v2
;
4792 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4794 Lisp_Object a
= v1
[i
];
4795 Lisp_Object b
= v2
[i
];
4797 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4798 and the other is specified. */
4799 equal_p
= XTYPE (a
) == XTYPE (b
);
4808 equal_p
= ((STRING_BYTES (XSTRING (a
))
4809 == STRING_BYTES (XSTRING (b
)))
4810 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4811 STRING_BYTES (XSTRING (a
))) == 0);
4820 equal_p
= !NILP (Fequal (a
, b
));
4830 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4831 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4832 "True if FACE1 and FACE2 are equal.\n\
4833 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4834 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4835 If FRAME is omitted or nil, use the selected frame.")
4836 (face1
, face2
, frame
)
4837 Lisp_Object face1
, face2
, frame
;
4841 Lisp_Object lface1
, lface2
;
4846 /* Don't use check_x_frame here because this function is called
4847 before X frames exist. At that time, if FRAME is nil,
4848 selected_frame will be used which is the frame dumped with
4849 Emacs. That frame is not an X frame. */
4850 f
= frame_or_selected_frame (frame
, 2);
4852 lface1
= lface_from_face_name (NULL
, face1
, 1);
4853 lface2
= lface_from_face_name (NULL
, face2
, 1);
4854 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4855 XVECTOR (lface2
)->contents
);
4856 return equal_p
? Qt
: Qnil
;
4860 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4861 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4862 "True if FACE has no attribute specified.\n\
4863 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4864 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4865 If FRAME is omitted or nil, use the selected frame.")
4867 Lisp_Object face
, frame
;
4874 frame
= selected_frame
;
4875 CHECK_LIVE_FRAME (frame
, 0);
4879 lface
= lface_from_face_name (NULL
, face
, 1);
4881 lface
= lface_from_face_name (f
, face
, 1);
4883 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4884 if (!UNSPECIFIEDP (XVECTOR (lface
)->contents
[i
]))
4887 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4891 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4893 "Return an alist of frame-local faces defined on FRAME.\n\
4894 For internal use only.")
4898 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4899 return f
->face_alist
;
4903 /* Return a hash code for Lisp string STRING with case ignored. Used
4904 below in computing a hash value for a Lisp face. */
4906 static INLINE
unsigned
4907 hash_string_case_insensitive (string
)
4912 xassert (STRINGP (string
));
4913 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4914 hash
= (hash
<< 1) ^ tolower (*s
);
4919 /* Return a hash code for face attribute vector V. */
4921 static INLINE
unsigned
4925 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4926 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4927 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4928 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
4929 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
4930 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
4931 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4935 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4936 considering charsets/registries). They do if they specify the same
4937 family, point size, weight, width, slant, and fontset. Both LFACE1
4938 and LFACE2 must be fully-specified. */
4941 lface_same_font_attributes_p (lface1
, lface2
)
4942 Lisp_Object
*lface1
, *lface2
;
4944 xassert (lface_fully_specified_p (lface1
)
4945 && lface_fully_specified_p (lface2
));
4946 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4947 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4948 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4949 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4950 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4951 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4952 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4953 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
4954 && STRINGP (lface2
[LFACE_FONT_INDEX
])
4955 && xstricmp (XSTRING (lface1
[LFACE_FONT_INDEX
])->data
,
4956 XSTRING (lface2
[LFACE_FONT_INDEX
])->data
))));
4961 /***********************************************************************
4963 ***********************************************************************/
4965 /* Allocate and return a new realized face for Lisp face attribute
4968 static struct face
*
4969 make_realized_face (attr
)
4972 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4973 bzero (face
, sizeof *face
);
4974 face
->ascii_face
= face
;
4975 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4980 /* Free realized face FACE, including its X resources. FACE may
4984 free_realized_face (f
, face
)
4990 #ifdef HAVE_WINDOW_SYSTEM
4991 if (FRAME_WINDOW_P (f
))
4993 /* Free fontset of FACE if it is ASCII face. */
4994 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4995 free_face_fontset (f
, face
);
4998 x_free_gc (f
, face
->gc
);
5002 free_face_colors (f
, face
);
5003 x_destroy_bitmap (f
, face
->stipple
);
5005 #endif /* HAVE_WINDOW_SYSTEM */
5012 /* Prepare face FACE for subsequent display on frame F. This
5013 allocated GCs if they haven't been allocated yet or have been freed
5014 by clearing the face cache. */
5017 prepare_face_for_display (f
, face
)
5021 #ifdef HAVE_WINDOW_SYSTEM
5022 xassert (FRAME_WINDOW_P (f
));
5027 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
5029 xgcv
.foreground
= face
->foreground
;
5030 xgcv
.background
= face
->background
;
5031 #ifdef HAVE_X_WINDOWS
5032 xgcv
.graphics_exposures
= False
;
5034 /* The font of FACE may be null if we couldn't load it. */
5037 #ifdef HAVE_X_WINDOWS
5038 xgcv
.font
= face
->font
->fid
;
5041 xgcv
.font
= face
->font
;
5044 xgcv
.font
= face
->font
;
5050 #ifdef HAVE_X_WINDOWS
5053 xgcv
.fill_style
= FillOpaqueStippled
;
5054 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
5055 mask
|= GCFillStyle
| GCStipple
;
5058 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
5061 #endif /* HAVE_WINDOW_SYSTEM */
5065 /***********************************************************************
5067 ***********************************************************************/
5069 /* Return a new face cache for frame F. */
5071 static struct face_cache
*
5075 struct face_cache
*c
;
5078 c
= (struct face_cache
*) xmalloc (sizeof *c
);
5079 bzero (c
, sizeof *c
);
5080 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5081 c
->buckets
= (struct face
**) xmalloc (size
);
5082 bzero (c
->buckets
, size
);
5084 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
5090 /* Clear out all graphics contexts for all realized faces, except for
5091 the basic faces. This should be done from time to time just to avoid
5092 keeping too many graphics contexts that are no longer needed. */
5096 struct face_cache
*c
;
5098 if (c
&& FRAME_WINDOW_P (c
->f
))
5100 #ifdef HAVE_WINDOW_SYSTEM
5102 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
5104 struct face
*face
= c
->faces_by_id
[i
];
5105 if (face
&& face
->gc
)
5107 x_free_gc (c
->f
, face
->gc
);
5111 #endif /* HAVE_WINDOW_SYSTEM */
5116 /* Free all realized faces in face cache C, including basic faces. C
5117 may be null. If faces are freed, make sure the frame's current
5118 matrix is marked invalid, so that a display caused by an expose
5119 event doesn't try to use faces we destroyed. */
5122 free_realized_faces (c
)
5123 struct face_cache
*c
;
5128 struct frame
*f
= c
->f
;
5130 /* We must block input here because we can't process X events
5131 safely while only some faces are freed, or when the frame's
5132 current matrix still references freed faces. */
5135 for (i
= 0; i
< c
->used
; ++i
)
5137 free_realized_face (f
, c
->faces_by_id
[i
]);
5138 c
->faces_by_id
[i
] = NULL
;
5142 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5143 bzero (c
->buckets
, size
);
5145 /* Must do a thorough redisplay the next time. Mark current
5146 matrices as invalid because they will reference faces freed
5147 above. This function is also called when a frame is
5148 destroyed. In this case, the root window of F is nil. */
5149 if (WINDOWP (f
->root_window
))
5151 clear_current_matrices (f
);
5152 ++windows_or_buffers_changed
;
5160 /* Free all faces realized for multibyte characters on frame F that
5164 free_realized_multibyte_face (f
, fontset
)
5168 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5172 /* We must block input here because we can't process X events safely
5173 while only some faces are freed, or when the frame's current
5174 matrix still references freed faces. */
5177 for (i
= 0; i
< cache
->used
; i
++)
5179 face
= cache
->faces_by_id
[i
];
5181 && face
!= face
->ascii_face
5182 && face
->fontset
== fontset
)
5184 uncache_face (cache
, face
);
5185 free_realized_face (f
, face
);
5189 /* Must do a thorough redisplay the next time. Mark current
5190 matrices as invalid because they will reference faces freed
5191 above. This function is also called when a frame is destroyed.
5192 In this case, the root window of F is nil. */
5193 if (WINDOWP (f
->root_window
))
5195 clear_current_matrices (f
);
5196 ++windows_or_buffers_changed
;
5203 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5204 This is done after attributes of a named face have been changed,
5205 because we can't tell which realized faces depend on that face. */
5208 free_all_realized_faces (frame
)
5214 FOR_EACH_FRAME (rest
, frame
)
5215 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5218 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5222 /* Free face cache C and faces in it, including their X resources. */
5226 struct face_cache
*c
;
5230 free_realized_faces (c
);
5232 xfree (c
->faces_by_id
);
5238 /* Cache realized face FACE in face cache C. HASH is the hash value
5239 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5240 collision list of the face hash table of C. This is done because
5241 otherwise lookup_face would find FACE for every character, even if
5242 faces with the same attributes but for specific characters exist. */
5245 cache_face (c
, face
, hash
)
5246 struct face_cache
*c
;
5250 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5254 if (face
->fontset
>= 0)
5256 struct face
*last
= c
->buckets
[i
];
5267 c
->buckets
[i
] = face
;
5268 face
->prev
= face
->next
= NULL
;
5274 face
->next
= c
->buckets
[i
];
5276 face
->next
->prev
= face
;
5277 c
->buckets
[i
] = face
;
5280 /* Find a free slot in C->faces_by_id and use the index of the free
5281 slot as FACE->id. */
5282 for (i
= 0; i
< c
->used
; ++i
)
5283 if (c
->faces_by_id
[i
] == NULL
)
5287 /* Maybe enlarge C->faces_by_id. */
5288 if (i
== c
->used
&& c
->used
== c
->size
)
5290 int new_size
= 2 * c
->size
;
5291 int sz
= new_size
* sizeof *c
->faces_by_id
;
5292 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5297 /* Check that FACE got a unique id. */
5302 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5303 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5309 #endif /* GLYPH_DEBUG */
5311 c
->faces_by_id
[i
] = face
;
5317 /* Remove face FACE from cache C. */
5320 uncache_face (c
, face
)
5321 struct face_cache
*c
;
5324 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5327 face
->prev
->next
= face
->next
;
5329 c
->buckets
[i
] = face
->next
;
5332 face
->next
->prev
= face
->prev
;
5334 c
->faces_by_id
[face
->id
] = NULL
;
5335 if (face
->id
== c
->used
)
5340 /* Look up a realized face with face attributes ATTR in the face cache
5341 of frame F. The face will be used to display character C. Value
5342 is the ID of the face found. If no suitable face is found, realize
5343 a new one. In that case, if C is a multibyte character, BASE_FACE
5344 is a face that has the same attributes. */
5347 lookup_face (f
, attr
, c
, base_face
)
5351 struct face
*base_face
;
5353 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5358 xassert (cache
!= NULL
);
5359 check_lface_attrs (attr
);
5361 /* Look up ATTR in the face cache. */
5362 hash
= lface_hash (attr
);
5363 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5365 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5366 if (face
->hash
== hash
5367 && (!FRAME_WINDOW_P (f
)
5368 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5369 && lface_equal_p (face
->lface
, attr
))
5372 /* If not found, realize a new face. */
5374 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5377 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5379 /* When this function is called from face_for_char (in this case, C is
5380 a multibyte character), a fontset of a face returned by
5381 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5382 C) is not sutisfied. The fontset is set for this face by
5383 face_for_char later. */
5385 if (FRAME_WINDOW_P (f
))
5386 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5388 #endif /* GLYPH_DEBUG */
5394 /* Return the face id of the realized face for named face SYMBOL on
5395 frame F suitable for displaying character C. Value is -1 if the
5396 face couldn't be determined, which might happen if the default face
5397 isn't realized and cannot be realized. */
5400 lookup_named_face (f
, symbol
, c
)
5405 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5406 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5407 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5409 if (default_face
== NULL
)
5411 if (!realize_basic_faces (f
))
5413 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5416 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5417 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5418 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5419 return lookup_face (f
, attrs
, c
, NULL
);
5423 /* Return the ID of the realized ASCII face of Lisp face with ID
5424 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5427 ascii_face_of_lisp_face (f
, lface_id
)
5433 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5435 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5436 face_id
= lookup_named_face (f
, face_name
, 0);
5445 /* Return a face for charset ASCII that is like the face with id
5446 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5447 STEPS < 0 means larger. Value is the id of the face. */
5450 smaller_face (f
, face_id
, steps
)
5454 #ifdef HAVE_WINDOW_SYSTEM
5456 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5457 int pt
, last_pt
, last_height
;
5460 struct face
*new_face
;
5462 /* If not called for an X frame, just return the original face. */
5463 if (FRAME_TERMCAP_P (f
))
5466 /* Try in increments of 1/2 pt. */
5467 delta
= steps
< 0 ? 5 : -5;
5468 steps
= abs (steps
);
5470 face
= FACE_FROM_ID (f
, face_id
);
5471 bcopy (face
->lface
, attrs
, sizeof attrs
);
5472 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5473 new_face_id
= face_id
;
5474 last_height
= FONT_HEIGHT (face
->font
);
5478 /* Give up if we cannot find a font within 10pt. */
5479 && abs (last_pt
- pt
) < 100)
5481 /* Look up a face for a slightly smaller/larger font. */
5483 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5484 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5485 new_face
= FACE_FROM_ID (f
, new_face_id
);
5487 /* If height changes, count that as one step. */
5488 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5489 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5492 last_height
= FONT_HEIGHT (new_face
->font
);
5499 #else /* not HAVE_WINDOW_SYSTEM */
5503 #endif /* not HAVE_WINDOW_SYSTEM */
5507 /* Return a face for charset ASCII that is like the face with id
5508 FACE_ID on frame F, but has height HEIGHT. */
5511 face_with_height (f
, face_id
, height
)
5516 #ifdef HAVE_WINDOW_SYSTEM
5518 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5520 if (FRAME_TERMCAP_P (f
)
5524 face
= FACE_FROM_ID (f
, face_id
);
5525 bcopy (face
->lface
, attrs
, sizeof attrs
);
5526 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5527 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5528 #endif /* HAVE_WINDOW_SYSTEM */
5534 /* Return the face id of the realized face for named face SYMBOL on
5535 frame F suitable for displaying character C, and use attributes of
5536 the face FACE_ID for attributes that aren't completely specified by
5537 SYMBOL. This is like lookup_named_face, except that the default
5538 attributes come from FACE_ID, not from the default face. FACE_ID
5539 is assumed to be already realized. */
5542 lookup_derived_face (f
, symbol
, c
, face_id
)
5548 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5549 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5550 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5555 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5556 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5557 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5558 return lookup_face (f
, attrs
, c
, default_face
);
5563 /***********************************************************************
5565 ***********************************************************************/
5567 DEFUN ("internal-set-font-selection-order",
5568 Finternal_set_font_selection_order
,
5569 Sinternal_set_font_selection_order
, 1, 1, 0,
5570 "Set font selection order for face font selection to ORDER.\n\
5571 ORDER must be a list of length 4 containing the symbols `:width',\n\
5572 `:height', `:weight', and `:slant'. Face attributes appearing\n\
5573 first in ORDER are matched first, e.g. if `:height' appears before\n\
5574 `:weight' in ORDER, font selection first tries to find a font with\n\
5575 a suitable height, and then tries to match the font weight.\n\
5584 CHECK_LIST (order
, 0);
5585 bzero (indices
, sizeof indices
);
5589 CONSP (list
) && i
< DIM (indices
);
5590 list
= XCDR (list
), ++i
)
5592 Lisp_Object attr
= XCAR (list
);
5595 if (EQ (attr
, QCwidth
))
5597 else if (EQ (attr
, QCheight
))
5598 xlfd
= XLFD_POINT_SIZE
;
5599 else if (EQ (attr
, QCweight
))
5601 else if (EQ (attr
, QCslant
))
5606 if (indices
[i
] != 0)
5612 || i
!= DIM (indices
)
5617 signal_error ("Invalid font sort order", order
);
5619 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5621 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5622 free_all_realized_faces (Qnil
);
5629 DEFUN ("internal-set-alternative-font-family-alist",
5630 Finternal_set_alternative_font_family_alist
,
5631 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5632 "Define alternative font families to try in face font selection.\n\
5633 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5634 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
5635 be found. Value is ALIST.")
5639 CHECK_LIST (alist
, 0);
5640 Vface_alternative_font_family_alist
= alist
;
5641 free_all_realized_faces (Qnil
);
5646 DEFUN ("internal-set-alternative-font-registry-alist",
5647 Finternal_set_alternative_font_registry_alist
,
5648 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5649 "Define alternative font registries to try in face font selection.\n\
5650 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5651 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can\n\
5652 be found. Value is ALIST.")
5656 CHECK_LIST (alist
, 0);
5657 Vface_alternative_font_registry_alist
= alist
;
5658 free_all_realized_faces (Qnil
);
5663 #ifdef HAVE_WINDOW_SYSTEM
5665 /* Value is non-zero if FONT is the name of a scalable font. The
5666 X11R6 XLFD spec says that point size, pixel size, and average width
5667 are zero for scalable fonts. Intlfonts contain at least one
5668 scalable font ("*-muleindian-1") for which this isn't true, so we
5669 just test average width. */
5672 font_scalable_p (font
)
5673 struct font_name
*font
;
5675 char *s
= font
->fields
[XLFD_AVGWIDTH
];
5676 return (*s
== '0' && *(s
+ 1) == '\0')
5678 /* Windows implementation of XLFD is slightly broken for backward
5679 compatibility with previous broken versions, so test for
5680 wildcards as well as 0. */
5687 /* Ignore the difference of font point size less than this value. */
5689 #define FONT_POINT_SIZE_QUANTUM 5
5691 /* Value is non-zero if FONT1 is a better match for font attributes
5692 VALUES than FONT2. VALUES is an array of face attribute values in
5693 font sort order. COMPARE_PT_P zero means don't compare point
5697 better_font_p (values
, font1
, font2
, compare_pt_p
)
5699 struct font_name
*font1
, *font2
;
5704 for (i
= 0; i
< 4; ++i
)
5706 int xlfd_idx
= font_sort_order
[i
];
5708 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
5710 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
5711 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
5713 if (xlfd_idx
== XLFD_POINT_SIZE
5714 && abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
5716 if (delta1
> delta2
)
5718 else if (delta1
< delta2
)
5722 /* The difference may be equal because, e.g., the face
5723 specifies `italic' but we have only `regular' and
5724 `oblique'. Prefer `oblique' in this case. */
5725 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5726 && font1
->numeric
[xlfd_idx
] > values
[i
]
5727 && font2
->numeric
[xlfd_idx
] < values
[i
])
5733 return (font1
->registry_priority
< font2
->registry_priority
);
5737 /* Value is non-zero if FONT is an exact match for face attributes in
5738 SPECIFIED. SPECIFIED is an array of face attribute values in font
5742 exact_face_match_p (specified
, font
)
5744 struct font_name
*font
;
5748 for (i
= 0; i
< 4; ++i
)
5749 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5756 /* Value is the name of a scaled font, generated from scalable font
5757 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5758 Value is allocated from heap. */
5761 build_scalable_font_name (f
, font
, specified_pt
)
5763 struct font_name
*font
;
5766 char point_size
[20], pixel_size
[20];
5768 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5771 /* If scalable font is for a specific resolution, compute
5772 the point size we must specify from the resolution of
5773 the display and the specified resolution of the font. */
5774 if (font
->numeric
[XLFD_RESY
] != 0)
5776 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5777 pixel_value
= font
->numeric
[XLFD_RESY
] / 720.0 * pt
;
5782 pixel_value
= resy
/ 720.0 * pt
;
5785 /* Set point size of the font. */
5786 sprintf (point_size
, "%d", (int) pt
);
5787 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5788 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5790 /* Set pixel size. */
5791 sprintf (pixel_size
, "%d", pixel_value
);
5792 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5793 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5795 /* If font doesn't specify its resolution, use the
5796 resolution of the display. */
5797 if (font
->numeric
[XLFD_RESY
] == 0)
5800 sprintf (buffer
, "%d", (int) resy
);
5801 font
->fields
[XLFD_RESY
] = buffer
;
5802 font
->numeric
[XLFD_RESY
] = resy
;
5805 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5808 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5809 sprintf (buffer
, "%d", resx
);
5810 font
->fields
[XLFD_RESX
] = buffer
;
5811 font
->numeric
[XLFD_RESX
] = resx
;
5814 return build_font_name (font
);
5818 /* Value is non-zero if we are allowed to use scalable font FONT. We
5819 can't run a Lisp function here since this function may be called
5820 with input blocked. */
5823 may_use_scalable_font_p (font
, name
)
5824 struct font_name
*font
;
5827 if (EQ (Vscalable_fonts_allowed
, Qt
))
5829 else if (CONSP (Vscalable_fonts_allowed
))
5831 Lisp_Object tail
, regexp
;
5833 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5835 regexp
= XCAR (tail
);
5836 if (STRINGP (regexp
)
5837 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
5847 /* Return the name of the best matching font for face attributes
5848 ATTRS in the array of font_name structures FONTS which contains
5849 NFONTS elements. Value is a font name which is allocated from
5850 the heap. FONTS is freed by this function. */
5853 best_matching_font (f
, attrs
, fonts
, nfonts
)
5856 struct font_name
*fonts
;
5860 struct font_name
*best
;
5868 /* Make specified font attributes available in `specified',
5869 indexed by sort order. */
5870 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5872 int xlfd_idx
= font_sort_order
[i
];
5874 if (xlfd_idx
== XLFD_SWIDTH
)
5875 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5876 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5877 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5878 else if (xlfd_idx
== XLFD_WEIGHT
)
5879 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5880 else if (xlfd_idx
== XLFD_SLANT
)
5881 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5888 /* Start with the first non-scalable font in the list. */
5889 for (i
= 0; i
< nfonts
; ++i
)
5890 if (!font_scalable_p (fonts
+ i
))
5893 /* Find the best match among the non-scalable fonts. */
5898 for (i
= 1; i
< nfonts
; ++i
)
5899 if (!font_scalable_p (fonts
+ i
)
5900 && better_font_p (specified
, fonts
+ i
, best
, 1))
5904 exact_p
= exact_face_match_p (specified
, best
);
5913 /* Unless we found an exact match among non-scalable fonts, see if
5914 we can find a better match among scalable fonts. */
5917 /* A scalable font is better if
5919 1. its weight, slant, swidth attributes are better, or.
5921 2. the best non-scalable font doesn't have the required
5922 point size, and the scalable fonts weight, slant, swidth
5925 int non_scalable_has_exact_height_p
;
5927 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5928 non_scalable_has_exact_height_p
= 1;
5930 non_scalable_has_exact_height_p
= 0;
5932 for (i
= 0; i
< nfonts
; ++i
)
5933 if (font_scalable_p (fonts
+ i
))
5936 || better_font_p (specified
, fonts
+ i
, best
, 0)
5937 || (!non_scalable_has_exact_height_p
5938 && !better_font_p (specified
, best
, fonts
+ i
, 0)))
5943 if (font_scalable_p (best
))
5944 font_name
= build_scalable_font_name (f
, best
, pt
);
5946 font_name
= build_font_name (best
);
5948 /* Free font_name structures. */
5949 free_font_names (fonts
, nfonts
);
5955 /* Try to get a list of fonts on frame F with font family FAMILY and
5956 registry/encoding REGISTRY. Return in *FONTS a pointer to a vector
5957 of font_name structures for the fonts matched. Value is the number
5961 try_font_list (f
, attrs
, pattern
, family
, registry
, fonts
)
5964 Lisp_Object pattern
, family
, registry
;
5965 struct font_name
**fonts
;
5969 if (NILP (family
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
5970 family
= attrs
[LFACE_FAMILY_INDEX
];
5972 nfonts
= font_list (f
, pattern
, family
, registry
, fonts
);
5973 if (nfonts
== 0 && !NILP (family
))
5977 /* Try alternative font families. */
5978 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
5980 for (alter
= XCDR (alter
);
5981 CONSP (alter
) && nfonts
== 0;
5982 alter
= XCDR (alter
))
5984 if (STRINGP (XCAR (alter
)))
5985 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
5988 /* Try font family of the default face or "fixed". */
5991 struct face
*dflt
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5993 family
= dflt
->lface
[LFACE_FAMILY_INDEX
];
5995 family
= build_string ("fixed");
5996 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
5999 /* Try any family with the given registry. */
6001 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
6008 /* Return the fontset id of the base fontset name or alias name given
6009 by the fontset attribute of ATTRS. Value is -1 if the fontset
6010 attribute of ATTRS doesn't name a fontset. */
6013 face_fontset (attrs
)
6019 name
= attrs
[LFACE_FONT_INDEX
];
6020 if (!STRINGP (name
))
6022 return fs_query_fontset (name
, 0);
6026 /* Choose a name of font to use on frame F to display character C with
6027 Lisp face attributes specified by ATTRS. The font name is
6028 determined by the font-related attributes in ATTRS and the name
6029 pattern for C in FONTSET. Value is the font name which is
6030 allocated from the heap and must be freed by the caller, or NULL if
6031 we can get no information about the font name of C. It is assured
6032 that we always get some information for a single byte
6036 choose_face_font (f
, attrs
, fontset
, c
)
6041 Lisp_Object pattern
;
6042 char *font_name
= NULL
;
6043 struct font_name
*fonts
;
6046 /* Get (foundry and) family name and registry (and encoding) name of
6048 pattern
= fontset_font_pattern (f
, fontset
, c
);
6051 xassert (!SINGLE_BYTE_CHAR_P (c
));
6054 /* If what we got is a name pattern, return it. */
6055 if (STRINGP (pattern
))
6056 return xstrdup (XSTRING (pattern
)->data
);
6058 /* Family name may be specified both in ATTRS and car part of
6059 PATTERN. The former has higher priority if C is a single byte
6061 if (STRINGP (attrs
[LFACE_FAMILY_INDEX
])
6062 && SINGLE_BYTE_CHAR_P (c
))
6063 XCAR (pattern
) = Qnil
;
6065 /* Get a list of fonts matching that pattern and choose the
6066 best match for the specified face attributes from it. */
6067 nfonts
= try_font_list (f
, attrs
, Qnil
, XCAR (pattern
), XCDR (pattern
),
6069 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
);
6073 #endif /* HAVE_WINDOW_SYSTEM */
6077 /***********************************************************************
6079 ***********************************************************************/
6081 /* Realize basic faces on frame F. Value is zero if frame parameters
6082 of F don't contain enough information needed to realize the default
6086 realize_basic_faces (f
)
6091 /* Block input there so that we won't be surprised by an X expose
6092 event, for instance without having the faces set up. */
6095 if (realize_default_face (f
))
6097 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6098 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6099 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
6100 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6101 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6102 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6103 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6104 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6105 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6107 /* Reflect changes in the `menu' face in menu bars. */
6108 if (menu_face_change_count
)
6110 menu_face_change_count
= 0;
6112 #ifdef USE_X_TOOLKIT
6115 Widget menu
= f
->output_data
.x
->menubar_widget
;
6117 x_set_menu_resources_from_menu_face (f
, menu
);
6119 #endif /* USE_X_TOOLKIT */
6130 /* Realize the default face on frame F. If the face is not fully
6131 specified, make it fully-specified. Attributes of the default face
6132 that are not explicitly specified are taken from frame parameters. */
6135 realize_default_face (f
)
6138 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6140 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6141 Lisp_Object frame_font
;
6145 /* If the `default' face is not yet known, create it. */
6146 lface
= lface_from_face_name (f
, Qdefault
, 0);
6150 XSETFRAME (frame
, f
);
6151 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6154 #ifdef HAVE_WINDOW_SYSTEM
6155 if (FRAME_WINDOW_P (f
))
6157 /* Set frame_font to the value of the `font' frame parameter. */
6158 frame_font
= Fassq (Qfont
, f
->param_alist
);
6159 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6160 frame_font
= XCDR (frame_font
);
6161 set_lface_from_font_name (f
, lface
, frame_font
, 1, 1);
6163 #endif /* HAVE_WINDOW_SYSTEM */
6165 if (!FRAME_WINDOW_P (f
))
6167 LFACE_FAMILY (lface
) = build_string ("default");
6168 LFACE_SWIDTH (lface
) = Qnormal
;
6169 LFACE_HEIGHT (lface
) = make_number (1);
6170 LFACE_WEIGHT (lface
) = Qnormal
;
6171 LFACE_SLANT (lface
) = Qnormal
;
6174 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6175 LFACE_UNDERLINE (lface
) = Qnil
;
6177 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6178 LFACE_OVERLINE (lface
) = Qnil
;
6180 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6181 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6183 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6184 LFACE_BOX (lface
) = Qnil
;
6186 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6187 LFACE_INVERSE (lface
) = Qnil
;
6189 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6191 /* This function is called so early that colors are not yet
6192 set in the frame parameter list. */
6193 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6195 if (CONSP (color
) && STRINGP (XCDR (color
)))
6196 LFACE_FOREGROUND (lface
) = XCDR (color
);
6197 else if (FRAME_WINDOW_P (f
))
6199 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6200 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6205 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6207 /* This function is called so early that colors are not yet
6208 set in the frame parameter list. */
6209 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6210 if (CONSP (color
) && STRINGP (XCDR (color
)))
6211 LFACE_BACKGROUND (lface
) = XCDR (color
);
6212 else if (FRAME_WINDOW_P (f
))
6214 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6215 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6220 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6221 LFACE_STIPPLE (lface
) = Qnil
;
6223 /* Realize the face; it must be fully-specified now. */
6224 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6225 check_lface (lface
);
6226 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6227 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6232 /* Realize basic faces other than the default face in face cache C.
6233 SYMBOL is the face name, ID is the face id the realized face must
6234 have. The default face must have been realized already. */
6237 realize_named_face (f
, symbol
, id
)
6242 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6243 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6244 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6245 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6246 struct face
*new_face
;
6248 /* The default face must exist and be fully specified. */
6249 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6250 check_lface_attrs (attrs
);
6251 xassert (lface_fully_specified_p (attrs
));
6253 /* If SYMBOL isn't know as a face, create it. */
6257 XSETFRAME (frame
, f
);
6258 lface
= Finternal_make_lisp_face (symbol
, frame
);
6261 /* Merge SYMBOL's face with the default face. */
6262 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6263 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
6265 /* Realize the face. */
6266 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6270 /* Realize the fully-specified face with attributes ATTRS in face
6271 cache CACHE for character C. If C is a multibyte character,
6272 BASE_FACE is a face that has the same attributes. Otherwise,
6273 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6274 ID of face to remove before caching the new face. Value is a
6275 pointer to the newly created realized face. */
6277 static struct face
*
6278 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6279 struct face_cache
*cache
;
6282 struct face
*base_face
;
6287 /* LFACE must be fully specified. */
6288 xassert (cache
!= NULL
);
6289 check_lface_attrs (attrs
);
6291 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
6293 /* Remove the former face. */
6294 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
6295 uncache_face (cache
, former_face
);
6296 free_realized_face (cache
->f
, former_face
);
6299 if (FRAME_WINDOW_P (cache
->f
))
6300 face
= realize_x_face (cache
, attrs
, c
, base_face
);
6301 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
6302 face
= realize_tty_face (cache
, attrs
, c
);
6306 /* Insert the new face. */
6307 cache_face (cache
, face
, lface_hash (attrs
));
6308 #ifdef HAVE_WINDOW_SYSTEM
6309 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
6310 load_face_font (cache
->f
, face
, c
);
6311 #endif /* HAVE_WINDOW_SYSTEM */
6316 /* Realize the fully-specified face with attributes ATTRS in face
6317 cache CACHE for character C. Do it for X frame CACHE->f. If C is
6318 a multibyte character, BASE_FACE is a face that has the same
6319 attributes. Otherwise, BASE_FACE is ignored. If the new face
6320 doesn't share font with the default face, a fontname is allocated
6321 from the heap and set in `font_name' of the new face, but it is not
6322 yet loaded here. Value is a pointer to the newly created realized
6325 static struct face
*
6326 realize_x_face (cache
, attrs
, c
, base_face
)
6327 struct face_cache
*cache
;
6330 struct face
*base_face
;
6332 #ifdef HAVE_WINDOW_SYSTEM
6333 struct face
*face
, *default_face
;
6335 Lisp_Object stipple
, overline
, strike_through
, box
;
6337 xassert (FRAME_WINDOW_P (cache
->f
));
6338 xassert (SINGLE_BYTE_CHAR_P (c
)
6341 /* Allocate a new realized face. */
6342 face
= make_realized_face (attrs
);
6346 /* If C is a multibyte character, we share all face attirbutes with
6347 BASE_FACE including the realized fontset. But, we must load a
6349 if (!SINGLE_BYTE_CHAR_P (c
))
6351 bcopy (base_face
, face
, sizeof *face
);
6354 /* Don't try to free the colors copied bitwise from BASE_FACE. */
6355 face
->foreground_defaulted_p
= 1;
6356 face
->background_defaulted_p
= 1;
6357 face
->underline_defaulted_p
= 1;
6358 face
->overline_color_defaulted_p
= 1;
6359 face
->strike_through_color_defaulted_p
= 1;
6360 face
->box_color_defaulted_p
= 1;
6362 /* to force realize_face to load font */
6367 /* Now we are realizing a face for ASCII (and unibyte) characters. */
6369 /* Determine the font to use. Most of the time, the font will be
6370 the same as the font of the default face, so try that first. */
6371 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6373 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
6374 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
6376 face
->font
= default_face
->font
;
6377 face
->fontset
= default_face
->fontset
;
6378 face
->font_info_id
= default_face
->font_info_id
;
6379 face
->font_name
= default_face
->font_name
;
6380 face
->ascii_face
= face
;
6382 /* But, as we can't share the fontset, make a new realized
6383 fontset that has the same base fontset as of the default
6386 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
6390 /* If the face attribute ATTRS specifies a fontset, use it as
6391 the base of a new realized fontset. Otherwise, use the same
6392 base fontset as of the default face. The base determines
6393 registry and encoding of a font. It may also determine
6394 foundry and family. The other fields of font name pattern
6395 are constructed from ATTRS. */
6396 int fontset
= face_fontset (attrs
);
6398 if ((fontset
== -1) && default_face
)
6399 fontset
= default_face
->fontset
;
6400 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
6401 face
->font
= NULL
; /* to force realize_face to load font */
6404 /* Load the font if it is specified in ATTRS. This fixes
6405 changing frame font on the Mac. */
6406 if (STRINGP (attrs
[LFACE_FONT_INDEX
]))
6408 struct font_info
*font_info
=
6409 FS_LOAD_FONT (f
, 0, XSTRING (attrs
[LFACE_FONT_INDEX
])->data
, -1);
6411 face
->font
= font_info
->font
;
6416 /* Load colors, and set remaining attributes. */
6418 load_face_colors (f
, face
, attrs
);
6421 box
= attrs
[LFACE_BOX_INDEX
];
6424 /* A simple box of line width 1 drawn in color given by
6426 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
6428 face
->box
= FACE_SIMPLE_BOX
;
6429 face
->box_line_width
= 1;
6431 else if (INTEGERP (box
))
6433 /* Simple box of specified line width in foreground color of the
6435 xassert (XINT (box
) > 0);
6436 face
->box
= FACE_SIMPLE_BOX
;
6437 face
->box_line_width
= XFASTINT (box
);
6438 face
->box_color
= face
->foreground
;
6439 face
->box_color_defaulted_p
= 1;
6441 else if (CONSP (box
))
6443 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
6444 being one of `raised' or `sunken'. */
6445 face
->box
= FACE_SIMPLE_BOX
;
6446 face
->box_color
= face
->foreground
;
6447 face
->box_color_defaulted_p
= 1;
6448 face
->box_line_width
= 1;
6452 Lisp_Object keyword
, value
;
6454 keyword
= XCAR (box
);
6462 if (EQ (keyword
, QCline_width
))
6464 if (INTEGERP (value
) && XINT (value
) > 0)
6465 face
->box_line_width
= XFASTINT (value
);
6467 else if (EQ (keyword
, QCcolor
))
6469 if (STRINGP (value
))
6471 face
->box_color
= load_color (f
, face
, value
,
6473 face
->use_box_color_for_shadows_p
= 1;
6476 else if (EQ (keyword
, QCstyle
))
6478 if (EQ (value
, Qreleased_button
))
6479 face
->box
= FACE_RAISED_BOX
;
6480 else if (EQ (value
, Qpressed_button
))
6481 face
->box
= FACE_SUNKEN_BOX
;
6486 /* Text underline, overline, strike-through. */
6488 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
6490 /* Use default color (same as foreground color). */
6491 face
->underline_p
= 1;
6492 face
->underline_defaulted_p
= 1;
6493 face
->underline_color
= 0;
6495 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
6497 /* Use specified color. */
6498 face
->underline_p
= 1;
6499 face
->underline_defaulted_p
= 0;
6500 face
->underline_color
6501 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
6502 LFACE_UNDERLINE_INDEX
);
6504 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6506 face
->underline_p
= 0;
6507 face
->underline_defaulted_p
= 0;
6508 face
->underline_color
= 0;
6511 overline
= attrs
[LFACE_OVERLINE_INDEX
];
6512 if (STRINGP (overline
))
6514 face
->overline_color
6515 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
6516 LFACE_OVERLINE_INDEX
);
6517 face
->overline_p
= 1;
6519 else if (EQ (overline
, Qt
))
6521 face
->overline_color
= face
->foreground
;
6522 face
->overline_color_defaulted_p
= 1;
6523 face
->overline_p
= 1;
6526 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6527 if (STRINGP (strike_through
))
6529 face
->strike_through_color
6530 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6531 LFACE_STRIKE_THROUGH_INDEX
);
6532 face
->strike_through_p
= 1;
6534 else if (EQ (strike_through
, Qt
))
6536 face
->strike_through_color
= face
->foreground
;
6537 face
->strike_through_color_defaulted_p
= 1;
6538 face
->strike_through_p
= 1;
6541 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6542 if (!NILP (stipple
))
6543 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6545 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
6547 #endif /* HAVE_WINDOW_SYSTEM */
6551 /* Map a specified color of face FACE on frame F to a tty color index.
6552 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6553 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6554 default foreground/background colors. */
6557 map_tty_color (f
, face
, idx
, defaulted
)
6560 enum lface_attribute_index idx
;
6563 Lisp_Object frame
, color
, def
;
6564 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6565 unsigned long default_pixel
, default_other_pixel
, pixel
;
6567 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6571 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6572 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6576 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6577 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6580 XSETFRAME (frame
, f
);
6581 color
= face
->lface
[idx
];
6584 && XSTRING (color
)->size
6585 && CONSP (Vtty_defined_color_alist
)
6586 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6589 /* Associations in tty-defined-color-alist are of the form
6590 (NAME INDEX R G B). We need the INDEX part. */
6591 pixel
= XINT (XCAR (XCDR (def
)));
6594 if (pixel
== default_pixel
&& STRINGP (color
))
6596 pixel
= load_color (f
, face
, color
, idx
);
6598 #if defined (MSDOS) || defined (WINDOWSNT)
6599 /* If the foreground of the default face is the default color,
6600 use the foreground color defined by the frame. */
6602 if (FRAME_MSDOS_P (f
))
6605 if (pixel
== default_pixel
6606 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6609 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6611 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6612 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6615 else if (pixel
== default_other_pixel
)
6618 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6620 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6621 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6627 #endif /* MSDOS or WINDOWSNT */
6631 face
->foreground
= pixel
;
6633 face
->background
= pixel
;
6637 /* Realize the fully-specified face with attributes ATTRS in face
6638 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
6639 pointer to the newly created realized face. */
6641 static struct face
*
6642 realize_tty_face (cache
, attrs
, c
)
6643 struct face_cache
*cache
;
6649 int face_colors_defaulted
= 0;
6650 struct frame
*f
= cache
->f
;
6652 /* Frame must be a termcap frame. */
6653 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6655 /* Allocate a new realized face. */
6656 face
= make_realized_face (attrs
);
6657 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6659 /* Map face attributes to TTY appearances. We map slant to
6660 dimmed text because we want italic text to appear differently
6661 and because dimmed text is probably used infrequently. */
6662 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6663 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6665 if (weight
> XLFD_WEIGHT_MEDIUM
)
6666 face
->tty_bold_p
= 1;
6667 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6668 face
->tty_dim_p
= 1;
6669 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6670 face
->tty_underline_p
= 1;
6671 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6672 face
->tty_reverse_p
= 1;
6674 /* Map color names to color indices. */
6675 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6676 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6678 /* Swap colors if face is inverse-video. If the colors are taken
6679 from the frame colors, they are already inverted, since the
6680 frame-creation function calls x-handle-reverse-video. */
6681 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6683 unsigned long tem
= face
->foreground
;
6684 face
->foreground
= face
->background
;
6685 face
->background
= tem
;
6688 if (tty_suppress_bold_inverse_default_colors_p
6690 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6691 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6692 face
->tty_bold_p
= 0;
6698 DEFUN ("tty-suppress-bold-inverse-default-colors",
6699 Ftty_suppress_bold_inverse_default_colors
,
6700 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6701 "Suppress/allow boldness of faces with inverse default colors.\n\
6702 SUPPRESS non-nil means suppress it.\n\
6703 This affects bold faces on TTYs whose foreground is the default background\n\
6704 color of the display and whose background is the default foreground color.\n\
6705 For such faces, the bold face attribute is ignored if this variable\n\
6708 Lisp_Object suppress
;
6710 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6711 ++face_change_count
;
6717 /***********************************************************************
6719 ***********************************************************************/
6721 /* Return the ID of the face to use to display character CH with face
6722 property PROP on frame F in current_buffer. */
6725 compute_char_face (f
, ch
, prop
)
6732 if (NILP (current_buffer
->enable_multibyte_characters
))
6737 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6738 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
6742 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6743 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6744 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6745 merge_face_vector_with_property (f
, attrs
, prop
);
6746 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
6753 /* Return the face ID associated with buffer position POS for
6754 displaying ASCII characters. Return in *ENDPTR the position at
6755 which a different face is needed, as far as text properties and
6756 overlays are concerned. W is a window displaying current_buffer.
6758 REGION_BEG, REGION_END delimit the region, so it can be
6761 LIMIT is a position not to scan beyond. That is to limit the time
6762 this function can take.
6764 If MOUSE is non-zero, use the character's mouse-face, not its face.
6766 The face returned is suitable for displaying ASCII characters. */
6769 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6770 endptr
, limit
, mouse
)
6773 int region_beg
, region_end
;
6778 struct frame
*f
= XFRAME (w
->frame
);
6779 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6780 Lisp_Object prop
, position
;
6782 Lisp_Object
*overlay_vec
;
6785 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6786 Lisp_Object limit1
, end
;
6787 struct face
*default_face
;
6788 int multibyte_p
= !NILP (current_buffer
->enable_multibyte_characters
);
6790 /* W must display the current buffer. We could write this function
6791 to use the frame and buffer of W, but right now it doesn't. */
6792 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6794 XSETFRAME (frame
, f
);
6795 XSETFASTINT (position
, pos
);
6798 if (pos
< region_beg
&& region_beg
< endpos
)
6799 endpos
= region_beg
;
6801 /* Get the `face' or `mouse_face' text property at POS, and
6802 determine the next position at which the property changes. */
6803 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6804 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6805 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6807 endpos
= XINT (end
);
6809 /* Look at properties from overlays. */
6814 /* First try with room for 40 overlays. */
6816 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6817 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6818 &next_overlay
, NULL
, 0);
6820 /* If there are more than 40, make enough space for all, and try
6822 if (noverlays
> len
)
6825 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6826 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6827 &next_overlay
, NULL
, 0);
6830 if (next_overlay
< endpos
)
6831 endpos
= next_overlay
;
6836 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6838 /* Optimize common cases where we can use the default face. */
6841 && !(pos
>= region_beg
&& pos
< region_end
))
6842 return DEFAULT_FACE_ID
;
6844 /* Begin with attributes from the default face. */
6845 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6847 /* Merge in attributes specified via text properties. */
6849 merge_face_vector_with_property (f
, attrs
, prop
);
6851 /* Now merge the overlay data. */
6852 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6853 for (i
= 0; i
< noverlays
; i
++)
6858 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6860 merge_face_vector_with_property (f
, attrs
, prop
);
6862 oend
= OVERLAY_END (overlay_vec
[i
]);
6863 oendpos
= OVERLAY_POSITION (oend
);
6864 if (oendpos
< endpos
)
6868 /* If in the region, merge in the region face. */
6869 if (pos
>= region_beg
&& pos
< region_end
)
6871 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6872 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6874 if (region_end
< endpos
)
6875 endpos
= region_end
;
6880 /* Look up a realized face with the given face attributes,
6881 or realize a new one for ASCII characters. */
6882 return lookup_face (f
, attrs
, 0, NULL
);
6886 /* Compute the face at character position POS in Lisp string STRING on
6887 window W, for ASCII characters.
6889 If STRING is an overlay string, it comes from position BUFPOS in
6890 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6891 not an overlay string. W must display the current buffer.
6892 REGION_BEG and REGION_END give the start and end positions of the
6893 region; both are -1 if no region is visible.
6895 BASE_FACE_ID is the id of a face to merge with. For strings coming
6896 from overlays or the `display' property it is the face at BUFPOS.
6898 Set *ENDPTR to the next position where to check for faces in
6899 STRING; -1 if the face is constant from POS to the end of the
6902 Value is the id of the face to use. The face returned is suitable
6903 for displaying ASCII characters. */
6906 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6907 region_end
, endptr
, base_face_id
)
6911 int region_beg
, region_end
;
6913 enum face_id base_face_id
;
6915 Lisp_Object prop
, position
, end
, limit
;
6916 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6917 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6918 struct face
*base_face
;
6919 int multibyte_p
= STRING_MULTIBYTE (string
);
6921 /* Get the value of the face property at the current position within
6922 STRING. Value is nil if there is no face property. */
6923 XSETFASTINT (position
, pos
);
6924 prop
= Fget_text_property (position
, Qface
, string
);
6926 /* Get the next position at which to check for faces. Value of end
6927 is nil if face is constant all the way to the end of the string.
6928 Otherwise it is a string position where to check faces next.
6929 Limit is the maximum position up to which to check for property
6930 changes in Fnext_single_property_change. Strings are usually
6931 short, so set the limit to the end of the string. */
6932 XSETFASTINT (limit
, XSTRING (string
)->size
);
6933 end
= Fnext_single_property_change (position
, Qface
, string
, limit
);
6935 *endptr
= XFASTINT (end
);
6939 base_face
= FACE_FROM_ID (f
, base_face_id
);
6940 xassert (base_face
);
6942 /* Optimize the default case that there is no face property and we
6943 are not in the region. */
6945 && (base_face_id
!= DEFAULT_FACE_ID
6946 /* BUFPOS <= 0 means STRING is not an overlay string, so
6947 that the region doesn't have to be taken into account. */
6949 || bufpos
< region_beg
6950 || bufpos
>= region_end
)
6952 /* We can't realize faces for different charsets differently
6953 if we don't have fonts, so we can stop here if not working
6954 on a window-system frame. */
6955 || !FRAME_WINDOW_P (f
)
6956 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6957 return base_face
->id
;
6959 /* Begin with attributes from the base face. */
6960 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6962 /* Merge in attributes specified via text properties. */
6964 merge_face_vector_with_property (f
, attrs
, prop
);
6966 /* If in the region, merge in the region face. */
6968 && bufpos
>= region_beg
6969 && bufpos
< region_end
)
6971 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6972 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6975 /* Look up a realized face with the given face attributes,
6976 or realize a new one for ASCII characters. */
6977 return lookup_face (f
, attrs
, 0, NULL
);
6982 /***********************************************************************
6984 ***********************************************************************/
6988 /* Print the contents of the realized face FACE to stderr. */
6991 dump_realized_face (face
)
6994 fprintf (stderr
, "ID: %d\n", face
->id
);
6995 #ifdef HAVE_X_WINDOWS
6996 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6998 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
7000 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
7001 fprintf (stderr
, "background: 0x%lx (%s)\n",
7003 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
7004 fprintf (stderr
, "font_name: %s (%s)\n",
7006 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
7007 #ifdef HAVE_X_WINDOWS
7008 fprintf (stderr
, "font = %p\n", face
->font
);
7010 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
7011 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
7012 fprintf (stderr
, "underline: %d (%s)\n",
7014 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
7015 fprintf (stderr
, "hash: %d\n", face
->hash
);
7016 fprintf (stderr
, "charset: %d\n", face
->charset
);
7020 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
7028 fprintf (stderr
, "font selection order: ");
7029 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
7030 fprintf (stderr
, "%d ", font_sort_order
[i
]);
7031 fprintf (stderr
, "\n");
7033 fprintf (stderr
, "alternative fonts: ");
7034 debug_print (Vface_alternative_font_family_alist
);
7035 fprintf (stderr
, "\n");
7037 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
7038 Fdump_face (make_number (i
));
7043 CHECK_NUMBER (n
, 0);
7044 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
7046 error ("Not a valid face");
7047 dump_realized_face (face
);
7054 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
7058 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
7059 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
7060 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
7064 #endif /* GLYPH_DEBUG != 0 */
7068 /***********************************************************************
7070 ***********************************************************************/
7075 Qface
= intern ("face");
7077 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7078 staticpro (&Qbitmap_spec_p
);
7079 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7080 staticpro (&Qframe_update_face_colors
);
7082 /* Lisp face attribute keywords. */
7083 QCfamily
= intern (":family");
7084 staticpro (&QCfamily
);
7085 QCheight
= intern (":height");
7086 staticpro (&QCheight
);
7087 QCweight
= intern (":weight");
7088 staticpro (&QCweight
);
7089 QCslant
= intern (":slant");
7090 staticpro (&QCslant
);
7091 QCunderline
= intern (":underline");
7092 staticpro (&QCunderline
);
7093 QCinverse_video
= intern (":inverse-video");
7094 staticpro (&QCinverse_video
);
7095 QCreverse_video
= intern (":reverse-video");
7096 staticpro (&QCreverse_video
);
7097 QCforeground
= intern (":foreground");
7098 staticpro (&QCforeground
);
7099 QCbackground
= intern (":background");
7100 staticpro (&QCbackground
);
7101 QCstipple
= intern (":stipple");;
7102 staticpro (&QCstipple
);
7103 QCwidth
= intern (":width");
7104 staticpro (&QCwidth
);
7105 QCfont
= intern (":font");
7106 staticpro (&QCfont
);
7107 QCbold
= intern (":bold");
7108 staticpro (&QCbold
);
7109 QCitalic
= intern (":italic");
7110 staticpro (&QCitalic
);
7111 QCoverline
= intern (":overline");
7112 staticpro (&QCoverline
);
7113 QCstrike_through
= intern (":strike-through");
7114 staticpro (&QCstrike_through
);
7115 QCbox
= intern (":box");
7117 QCinherit
= intern (":inherit");
7118 staticpro (&QCinherit
);
7120 /* Symbols used for Lisp face attribute values. */
7121 QCcolor
= intern (":color");
7122 staticpro (&QCcolor
);
7123 QCline_width
= intern (":line-width");
7124 staticpro (&QCline_width
);
7125 QCstyle
= intern (":style");
7126 staticpro (&QCstyle
);
7127 Qreleased_button
= intern ("released-button");
7128 staticpro (&Qreleased_button
);
7129 Qpressed_button
= intern ("pressed-button");
7130 staticpro (&Qpressed_button
);
7131 Qnormal
= intern ("normal");
7132 staticpro (&Qnormal
);
7133 Qultra_light
= intern ("ultra-light");
7134 staticpro (&Qultra_light
);
7135 Qextra_light
= intern ("extra-light");
7136 staticpro (&Qextra_light
);
7137 Qlight
= intern ("light");
7138 staticpro (&Qlight
);
7139 Qsemi_light
= intern ("semi-light");
7140 staticpro (&Qsemi_light
);
7141 Qsemi_bold
= intern ("semi-bold");
7142 staticpro (&Qsemi_bold
);
7143 Qbold
= intern ("bold");
7145 Qextra_bold
= intern ("extra-bold");
7146 staticpro (&Qextra_bold
);
7147 Qultra_bold
= intern ("ultra-bold");
7148 staticpro (&Qultra_bold
);
7149 Qoblique
= intern ("oblique");
7150 staticpro (&Qoblique
);
7151 Qitalic
= intern ("italic");
7152 staticpro (&Qitalic
);
7153 Qreverse_oblique
= intern ("reverse-oblique");
7154 staticpro (&Qreverse_oblique
);
7155 Qreverse_italic
= intern ("reverse-italic");
7156 staticpro (&Qreverse_italic
);
7157 Qultra_condensed
= intern ("ultra-condensed");
7158 staticpro (&Qultra_condensed
);
7159 Qextra_condensed
= intern ("extra-condensed");
7160 staticpro (&Qextra_condensed
);
7161 Qcondensed
= intern ("condensed");
7162 staticpro (&Qcondensed
);
7163 Qsemi_condensed
= intern ("semi-condensed");
7164 staticpro (&Qsemi_condensed
);
7165 Qsemi_expanded
= intern ("semi-expanded");
7166 staticpro (&Qsemi_expanded
);
7167 Qexpanded
= intern ("expanded");
7168 staticpro (&Qexpanded
);
7169 Qextra_expanded
= intern ("extra-expanded");
7170 staticpro (&Qextra_expanded
);
7171 Qultra_expanded
= intern ("ultra-expanded");
7172 staticpro (&Qultra_expanded
);
7173 Qbackground_color
= intern ("background-color");
7174 staticpro (&Qbackground_color
);
7175 Qforeground_color
= intern ("foreground-color");
7176 staticpro (&Qforeground_color
);
7177 Qunspecified
= intern ("unspecified");
7178 staticpro (&Qunspecified
);
7180 Qface_alias
= intern ("face-alias");
7181 staticpro (&Qface_alias
);
7182 Qdefault
= intern ("default");
7183 staticpro (&Qdefault
);
7184 Qtool_bar
= intern ("tool-bar");
7185 staticpro (&Qtool_bar
);
7186 Qregion
= intern ("region");
7187 staticpro (&Qregion
);
7188 Qfringe
= intern ("fringe");
7189 staticpro (&Qfringe
);
7190 Qheader_line
= intern ("header-line");
7191 staticpro (&Qheader_line
);
7192 Qscroll_bar
= intern ("scroll-bar");
7193 staticpro (&Qscroll_bar
);
7194 Qmenu
= intern ("menu");
7196 Qcursor
= intern ("cursor");
7197 staticpro (&Qcursor
);
7198 Qborder
= intern ("border");
7199 staticpro (&Qborder
);
7200 Qmouse
= intern ("mouse");
7201 staticpro (&Qmouse
);
7202 Qtty_color_desc
= intern ("tty-color-desc");
7203 staticpro (&Qtty_color_desc
);
7204 Qtty_color_by_index
= intern ("tty-color-by-index");
7205 staticpro (&Qtty_color_by_index
);
7206 Qtty_color_alist
= intern ("tty-color-alist");
7207 staticpro (&Qtty_color_alist
);
7209 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7210 staticpro (&Vparam_value_alist
);
7211 Vface_alternative_font_family_alist
= Qnil
;
7212 staticpro (&Vface_alternative_font_family_alist
);
7213 Vface_alternative_font_registry_alist
= Qnil
;
7214 staticpro (&Vface_alternative_font_registry_alist
);
7216 defsubr (&Sinternal_make_lisp_face
);
7217 defsubr (&Sinternal_lisp_face_p
);
7218 defsubr (&Sinternal_set_lisp_face_attribute
);
7219 #ifdef HAVE_WINDOW_SYSTEM
7220 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7222 defsubr (&Scolor_gray_p
);
7223 defsubr (&Scolor_supported_p
);
7224 defsubr (&Sinternal_get_lisp_face_attribute
);
7225 defsubr (&Sinternal_lisp_face_attribute_values
);
7226 defsubr (&Sinternal_lisp_face_equal_p
);
7227 defsubr (&Sinternal_lisp_face_empty_p
);
7228 defsubr (&Sinternal_copy_lisp_face
);
7229 defsubr (&Sinternal_merge_in_global_face
);
7230 defsubr (&Sface_font
);
7231 defsubr (&Sframe_face_alist
);
7232 defsubr (&Sinternal_set_font_selection_order
);
7233 defsubr (&Sinternal_set_alternative_font_family_alist
);
7234 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7236 defsubr (&Sdump_face
);
7237 defsubr (&Sshow_face_resources
);
7238 #endif /* GLYPH_DEBUG */
7239 defsubr (&Sclear_face_cache
);
7240 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7242 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7243 defsubr (&Sdump_colors
);
7246 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7247 "*Limit for font matching.\n\
7248 If an integer > 0, font matching functions won't load more than\n\
7249 that number of fonts when searching for a matching font.");
7250 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7252 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7253 "List of global face definitions (for internal use only.)");
7254 Vface_new_frame_defaults
= Qnil
;
7256 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7257 "*Default stipple pattern used on monochrome displays.\n\
7258 This stipple pattern is used on monochrome displays\n\
7259 instead of shades of gray for a face background color.\n\
7260 See `set-face-stipple' for possible values for this variable.");
7261 Vface_default_stipple
= build_string ("gray3");
7263 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7264 "An alist of defined terminal colors and their RGB values.");
7265 Vtty_defined_color_alist
= Qnil
;
7267 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7268 "Allowed scalable fonts.\n\
7269 A value of nil means don't allow any scalable fonts.\n\
7270 A value of t means allow any scalable font.\n\
7271 Otherwise, value must be a list of regular expressions. A font may be\n\
7272 scaled if its name matches a regular expression in the list.");
7273 #if defined (WINDOWSNT) || defined (macintosh)
7274 /* Windows uses mainly truetype fonts, so disallowing scalable fonts
7275 by default limits the fonts available severely. */
7276 Vscalable_fonts_allowed
= Qt
;
7278 Vscalable_fonts_allowed
= Qnil
;
7281 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7282 "List of ignored fonts.\n\
7283 Each element is a regular expression that matches names of fonts to ignore.");
7284 Vface_ignored_fonts
= Qnil
;
7286 #ifdef HAVE_WINDOW_SYSTEM
7287 defsubr (&Sbitmap_spec_p
);
7288 defsubr (&Sx_list_fonts
);
7289 defsubr (&Sinternal_face_x_get_resource
);
7290 defsubr (&Sx_family_fonts
);
7291 defsubr (&Sx_font_family_list
);
7292 #endif /* HAVE_WINDOW_SYSTEM */