1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000, 2001
3 Free Software Foundation.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
26 When using Emacs with X, the display style of characters can be
27 changed by defining `faces'. Each face can specify the following
32 2. Relative proportionate width, aka character set width or set
33 width (swidth), e.g. `semi-compressed'.
35 3. Font height in 1/10pt.
37 4. Font weight, e.g. `bold'.
39 5. Font slant, e.g. `italic'.
45 8. Whether or not characters should be underlined, and in what color.
47 9. Whether or not characters should be displayed in inverse video.
49 10. A background stipple, a bitmap.
51 11. Whether or not characters should be overlined, and in what color.
53 12. Whether or not characters should be strike-through, and in what
56 13. Whether or not a box should be drawn around characters, the box
57 type, and, for simple boxes, in what color.
59 14. Font or fontset pattern, or nil. This is a special attribute.
60 When this attribute is specified, the face uses a font opened by
61 that pattern as is. In addition, all the other font-related
62 attributes (1st thru 5th) are generated from the opened font name.
63 On the other hand, if one of the other font-related attributes are
64 specified, this attribute is set to nil. In that case, the face
65 doesn't inherit this attribute from the `default' face, and uses a
66 font determined by the other attributes (those may be inherited
67 from the `default' face).
69 15. A face name or list of face names from which to inherit attributes.
71 16. A specified average font width, which is invisible from Lisp,
72 and is used to ensure that a font specified on the command line,
73 for example, can be matched exactly.
75 Faces are frame-local by nature because Emacs allows to define the
76 same named face (face names are symbols) differently for different
77 frames. Each frame has an alist of face definitions for all named
78 faces. The value of a named face in such an alist is a Lisp vector
79 with the symbol `face' in slot 0, and a slot for each of the face
80 attributes mentioned above.
82 There is also a global face alist `Vface_new_frame_defaults'. Face
83 definitions from this list are used to initialize faces of newly
86 A face doesn't have to specify all attributes. Those not specified
87 have a value of `unspecified'. Faces specifying all attributes but
88 the 14th are called `fully-specified'.
93 The display style of a given character in the text is determined by
94 combining several faces. This process is called `face merging'.
95 Any aspect of the display style that isn't specified by overlays or
96 text properties is taken from the `default' face. Since it is made
97 sure that the default face is always fully-specified, face merging
98 always results in a fully-specified face.
103 After all face attributes for a character have been determined by
104 merging faces of that character, that face is `realized'. The
105 realization process maps face attributes to what is physically
106 available on the system where Emacs runs. The result is a
107 `realized face' in form of a struct face which is stored in the
108 face cache of the frame on which it was realized.
110 Face realization is done in the context of the character to display
111 because different fonts may be used for different characters. In
112 other words, for characters that have different font
113 specifications, different realized faces are needed to display
116 Font specification is done by fontsets. See the comment in
117 fontset.c for the details. In the current implementation, all ASCII
118 characters share the same font in a fontset.
120 Faces are at first realized for ASCII characters, and, at that
121 time, assigned a specific realized fontset. Hereafter, we call
122 such a face as `ASCII face'. When a face for a multibyte character
123 is realized, it inherits (thus shares) a fontset of an ASCII face
124 that has the same attributes other than font-related ones.
126 Thus, all realized face have a realized fontset.
131 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
132 font as ASCII characters. That is because it is expected that
133 unibyte text users specify a font that is suitable both for ASCII
134 and raw 8-bit characters.
139 Font selection tries to find the best available matching font for a
140 given (character, face) combination.
142 If the face specifies a fontset name, that fontset determines a
143 pattern for fonts of the given character. If the face specifies a
144 font name or the other font-related attributes, a fontset is
145 realized from the default fontset. In that case, that
146 specification determines a pattern for ASCII characters and the
147 default fontset determines a pattern for multibyte characters.
149 Available fonts on the system on which Emacs runs are then matched
150 against the font pattern. The result of font selection is the best
151 match for the given face attributes in this font list.
153 Font selection can be influenced by the user.
155 1. The user can specify the relative importance he gives the face
156 attributes width, height, weight, and slant by setting
157 face-font-selection-order (faces.el) to a list of face attribute
158 names. The default is '(:width :height :weight :slant), and means
159 that font selection first tries to find a good match for the font
160 width specified by a face, then---within fonts with that
161 width---tries to find a best match for the specified font height,
164 2. Setting face-font-family-alternatives allows the user to
165 specify alternative font families to try if a family specified by a
168 3. Setting face-font-registry-alternatives allows the user to
169 specify all alternative font registries to try for a face
170 specifying a registry.
172 4. Setting face-ignored-fonts allows the user to ignore specific
176 Character composition.
178 Usually, the realization process is already finished when Emacs
179 actually reflects the desired glyph matrix on the screen. However,
180 on displaying a composition (sequence of characters to be composed
181 on the screen), a suitable font for the components of the
182 composition is selected and realized while drawing them on the
183 screen, i.e. the realization process is delayed but in principle
187 Initialization of basic faces.
189 The faces `default', `modeline' are considered `basic faces'.
190 When redisplay happens the first time for a newly created frame,
191 basic faces are realized for CHARSET_ASCII. Frame parameters are
192 used to fill in unspecified attributes of the default face. */
195 #include <sys/types.h>
196 #include <sys/stat.h>
199 #include "keyboard.h"
202 #ifdef HAVE_WINDOW_SYSTEM
204 #endif /* HAVE_WINDOW_SYSTEM */
206 #ifdef HAVE_X_WINDOWS
210 #include <Xm/XmStrDefs.h>
211 #endif /* USE_MOTIF */
212 #endif /* HAVE_X_WINDOWS */
221 /* Redefine X specifics to W32 equivalents to avoid cluttering the
222 code with #ifdef blocks. */
223 #undef FRAME_X_DISPLAY_INFO
224 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
225 #define x_display_info w32_display_info
226 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
227 #define check_x check_w32
228 #define x_list_fonts w32_list_fonts
229 #define GCGraphicsExposures 0
230 /* For historic reasons, FONT_WIDTH refers to average width on W32,
231 not maximum as on X. Redefine here. */
233 #define FONT_WIDTH FONT_MAX_WIDTH
234 #endif /* WINDOWSNT */
238 #define x_display_info mac_display_info
239 #define check_x check_mac
241 extern XGCValues
*XCreateGC (void *, WindowPtr
, unsigned long, XGCValues
*);
244 x_create_gc (f
, mask
, xgcv
)
250 gc
= XCreateGC (FRAME_MAC_DISPLAY (f
), FRAME_MAC_WINDOW (f
), mask
, xgcv
);
259 XFreeGC (FRAME_MAC_DISPLAY (f
), gc
);
264 #include "dispextern.h"
265 #include "blockinput.h"
267 #include "intervals.h"
269 #ifdef HAVE_X_WINDOWS
271 /* Compensate for a bug in Xos.h on some systems, on which it requires
272 time.h. On some such systems, Xos.h tries to redefine struct
273 timeval and struct timezone if USG is #defined while it is
276 #ifdef XOS_NEEDS_TIME_H
282 #else /* not XOS_NEEDS_TIME_H */
284 #endif /* not XOS_NEEDS_TIME_H */
286 #endif /* HAVE_X_WINDOWS */
292 #define max(A, B) ((A) > (B) ? (A) : (B))
293 #define min(A, B) ((A) < (B) ? (A) : (B))
294 #define abs(X) ((X) < 0 ? -(X) : (X))
297 /* Number of pt per inch (from the TeXbook). */
299 #define PT_PER_INCH 72.27
301 /* Non-zero if face attribute ATTR is unspecified. */
303 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
305 /* Value is the number of elements of VECTOR. */
307 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
309 /* Make a copy of string S on the stack using alloca. Value is a pointer
312 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
314 /* Make a copy of the contents of Lisp string S on the stack using
315 alloca. Value is a pointer to the copy. */
317 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
319 /* Size of hash table of realized faces in face caches (should be a
322 #define FACE_CACHE_BUCKETS_SIZE 1001
324 /* A definition of XColor for non-X frames. */
326 #ifndef HAVE_X_WINDOWS
331 unsigned short red
, green
, blue
;
337 #endif /* not HAVE_X_WINDOWS */
339 /* Keyword symbols used for face attribute names. */
341 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
342 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
343 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
344 Lisp_Object QCreverse_video
;
345 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
347 /* Symbols used for attribute values. */
349 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
350 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
351 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
352 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
353 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
354 Lisp_Object Qultra_expanded
;
355 Lisp_Object Qreleased_button
, Qpressed_button
;
356 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
357 Lisp_Object Qunspecified
;
359 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
361 /* The name of the function to call when the background of the frame
362 has changed, frame_update_face_colors. */
364 Lisp_Object Qframe_update_face_colors
;
366 /* Names of basic faces. */
368 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
369 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
370 extern Lisp_Object Qmode_line
;
372 /* The symbol `face-alias'. A symbols having that property is an
373 alias for another face. Value of the property is the name of
376 Lisp_Object Qface_alias
;
378 /* Names of frame parameters related to faces. */
380 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
381 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
383 /* Default stipple pattern used on monochrome displays. This stipple
384 pattern is used on monochrome displays instead of shades of gray
385 for a face background color. See `set-face-stipple' for possible
386 values for this variable. */
388 Lisp_Object Vface_default_stipple
;
390 /* Alist of alternative font families. Each element is of the form
391 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
392 try FAMILY1, then FAMILY2, ... */
394 Lisp_Object Vface_alternative_font_family_alist
;
396 /* Alist of alternative font registries. Each element is of the form
397 (REGISTRY REGISTRY1 REGISTRY2...). If fonts of REGISTRY can't be
398 loaded, try REGISTRY1, then REGISTRY2, ... */
400 Lisp_Object Vface_alternative_font_registry_alist
;
402 /* Allowed scalable fonts. A value of nil means don't allow any
403 scalable fonts. A value of t means allow the use of any scalable
404 font. Otherwise, value must be a list of regular expressions. A
405 font may be scaled if its name matches a regular expression in the
408 Lisp_Object Vscalable_fonts_allowed
, Qscalable_fonts_allowed
;
410 /* List of regular expressions that matches names of fonts to ignore. */
412 Lisp_Object Vface_ignored_fonts
;
414 /* Maximum number of fonts to consider in font_list. If not an
415 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
417 Lisp_Object Vfont_list_limit
;
418 #define DEFAULT_FONT_LIST_LIMIT 100
420 /* The symbols `foreground-color' and `background-color' which can be
421 used as part of a `face' property. This is for compatibility with
424 Lisp_Object Qforeground_color
, Qbackground_color
;
426 /* The symbols `face' and `mouse-face' used as text properties. */
429 extern Lisp_Object Qmouse_face
;
431 /* Error symbol for wrong_type_argument in load_pixmap. */
433 Lisp_Object Qbitmap_spec_p
;
435 /* Alist of global face definitions. Each element is of the form
436 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
437 is a Lisp vector of face attributes. These faces are used
438 to initialize faces for new frames. */
440 Lisp_Object Vface_new_frame_defaults
;
442 /* The next ID to assign to Lisp faces. */
444 static int next_lface_id
;
446 /* A vector mapping Lisp face Id's to face names. */
448 static Lisp_Object
*lface_id_to_name
;
449 static int lface_id_to_name_size
;
451 /* TTY color-related functions (defined in tty-colors.el). */
453 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
;
455 /* The name of the function used to compute colors on TTYs. */
457 Lisp_Object Qtty_color_alist
;
459 /* An alist of defined terminal colors and their RGB values. */
461 Lisp_Object Vtty_defined_color_alist
;
463 /* Counter for calls to clear_face_cache. If this counter reaches
464 CLEAR_FONT_TABLE_COUNT, and a frame has more than
465 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
467 static int clear_font_table_count
;
468 #define CLEAR_FONT_TABLE_COUNT 100
469 #define CLEAR_FONT_TABLE_NFONTS 10
471 /* Non-zero means face attributes have been changed since the last
472 redisplay. Used in redisplay_internal. */
474 int face_change_count
;
476 /* Incremented for every change in the `menu' face. */
478 int menu_face_change_count
;
480 /* Non-zero means don't display bold text if a face's foreground
481 and background colors are the inverse of the default colors of the
482 display. This is a kluge to suppress `bold black' foreground text
483 which is hard to read on an LCD monitor. */
485 int tty_suppress_bold_inverse_default_colors_p
;
487 /* A list of the form `((x . y))' used to avoid consing in
488 Finternal_set_lisp_face_attribute. */
490 static Lisp_Object Vparam_value_alist
;
492 /* The total number of colors currently allocated. */
495 static int ncolors_allocated
;
496 static int npixmaps_allocated
;
502 /* Function prototypes. */
507 static void map_tty_color
P_ ((struct frame
*, struct face
*,
508 enum lface_attribute_index
, int *));
509 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
510 static int may_use_scalable_font_p
P_ ((char *));
511 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
512 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
514 static int x_face_list_fonts
P_ ((struct frame
*, char *,
515 struct font_name
*, int, int));
516 static int font_scalable_p
P_ ((struct font_name
*));
517 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
518 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
519 static unsigned char *xstrlwr
P_ ((unsigned char *));
520 static void signal_error
P_ ((char *, Lisp_Object
));
521 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
522 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
523 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
524 static void free_face_colors
P_ ((struct frame
*, struct face
*));
525 static int face_color_gray_p
P_ ((struct frame
*, char *));
526 static char *build_font_name
P_ ((struct font_name
*));
527 static void free_font_names
P_ ((struct font_name
*, int));
528 static int sorted_font_list
P_ ((struct frame
*, char *,
529 int (*cmpfn
) P_ ((const void *, const void *)),
530 struct font_name
**));
531 static int font_list_1
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
532 Lisp_Object
, struct font_name
**));
533 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
534 Lisp_Object
, struct font_name
**));
535 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*,
536 Lisp_Object
, Lisp_Object
, struct font_name
**));
537 static int try_alternative_families
P_ ((struct frame
*f
, Lisp_Object
,
538 Lisp_Object
, struct font_name
**));
539 static int cmp_font_names
P_ ((const void *, const void *));
540 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
541 struct face
*, int));
542 static struct face
*realize_x_face
P_ ((struct face_cache
*,
543 Lisp_Object
*, int, struct face
*));
544 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
545 Lisp_Object
*, int));
546 static int realize_basic_faces
P_ ((struct frame
*));
547 static int realize_default_face
P_ ((struct frame
*));
548 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
549 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
550 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
551 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
552 static unsigned lface_hash
P_ ((Lisp_Object
*));
553 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
554 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
555 static void free_realized_face
P_ ((struct frame
*, struct face
*));
556 static void clear_face_gcs
P_ ((struct face_cache
*));
557 static void free_face_cache
P_ ((struct face_cache
*));
558 static int face_numeric_weight
P_ ((Lisp_Object
));
559 static int face_numeric_slant
P_ ((Lisp_Object
));
560 static int face_numeric_swidth
P_ ((Lisp_Object
));
561 static int face_fontset
P_ ((Lisp_Object
*));
562 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int));
563 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*, Lisp_Object
));
564 static void merge_face_inheritance
P_ ((struct frame
*f
, Lisp_Object
,
565 Lisp_Object
*, Lisp_Object
));
566 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
568 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
569 Lisp_Object
, int, int));
570 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
571 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
572 static void free_realized_faces
P_ ((struct face_cache
*));
573 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
574 struct font_name
*, int, int));
575 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
576 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
577 static int xlfd_numeric_slant
P_ ((struct font_name
*));
578 static int xlfd_numeric_weight
P_ ((struct font_name
*));
579 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
580 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
581 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
582 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
583 static int xlfd_fixed_p
P_ ((struct font_name
*));
584 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
586 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
587 struct font_name
*, int,
589 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
590 struct font_name
*, int));
592 #ifdef HAVE_WINDOW_SYSTEM
594 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
595 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
596 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
597 int (*cmpfn
) P_ ((const void *, const void *))));
598 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
599 static void x_free_gc
P_ ((struct frame
*, GC
));
600 static void clear_font_table
P_ ((struct frame
*));
603 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
604 #endif /* WINDOWSNT */
607 static void x_update_menu_appearance
P_ ((struct frame
*));
608 #endif /* USE_X_TOOLKIT */
610 #endif /* HAVE_WINDOW_SYSTEM */
613 /***********************************************************************
615 ***********************************************************************/
617 #ifdef HAVE_X_WINDOWS
619 #ifdef DEBUG_X_COLORS
621 /* The following is a poor mans infrastructure for debugging X color
622 allocation problems on displays with PseudoColor-8. Some X servers
623 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
624 color reference counts completely so that they don't signal an
625 error when a color is freed whose reference count is already 0.
626 Other X servers do. To help me debug this, the following code
627 implements a simple reference counting schema of its own, for a
628 single display/screen. --gerd. */
630 /* Reference counts for pixel colors. */
632 int color_count
[256];
634 /* Register color PIXEL as allocated. */
637 register_color (pixel
)
640 xassert (pixel
< 256);
641 ++color_count
[pixel
];
645 /* Register color PIXEL as deallocated. */
648 unregister_color (pixel
)
651 xassert (pixel
< 256);
652 if (color_count
[pixel
] > 0)
653 --color_count
[pixel
];
659 /* Register N colors from PIXELS as deallocated. */
662 unregister_colors (pixels
, n
)
663 unsigned long *pixels
;
667 for (i
= 0; i
< n
; ++i
)
668 unregister_color (pixels
[i
]);
672 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
673 "Dump currently allocated colors and their reference counts to stderr.")
678 fputc ('\n', stderr
);
680 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
683 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
686 fputc ('\n', stderr
);
688 fputc ('\t', stderr
);
692 fputc ('\n', stderr
);
696 #endif /* DEBUG_X_COLORS */
699 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
700 color values. Interrupt input must be blocked when this function
704 x_free_colors (f
, pixels
, npixels
)
706 unsigned long *pixels
;
709 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
711 /* If display has an immutable color map, freeing colors is not
712 necessary and some servers don't allow it. So don't do it. */
713 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
715 #ifdef DEBUG_X_COLORS
716 unregister_colors (pixels
, npixels
);
718 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
724 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
725 color values. Interrupt input must be blocked when this function
729 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
733 unsigned long *pixels
;
736 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
737 int class = dpyinfo
->visual
->class;
739 /* If display has an immutable color map, freeing colors is not
740 necessary and some servers don't allow it. So don't do it. */
741 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
743 #ifdef DEBUG_X_COLORS
744 unregister_colors (pixels
, npixels
);
746 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
751 /* Create and return a GC for use on frame F. GC values and mask
752 are given by XGCV and MASK. */
755 x_create_gc (f
, mask
, xgcv
)
762 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
769 /* Free GC which was used on frame F. */
777 xassert (--ngcs
>= 0);
778 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
782 #endif /* HAVE_X_WINDOWS */
785 /* W32 emulation of GCs */
788 x_create_gc (f
, mask
, xgcv
)
795 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
802 /* Free GC which was used on frame F. */
810 xassert (--ngcs
>= 0);
815 #endif /* WINDOWSNT */
817 /* Like stricmp. Used to compare parts of font names which are in
822 unsigned char *s1
, *s2
;
826 unsigned char c1
= tolower (*s1
);
827 unsigned char c2
= tolower (*s2
);
829 return c1
< c2
? -1 : 1;
834 return *s2
== 0 ? 0 : -1;
839 /* Like strlwr, which might not always be available. */
841 static unsigned char *
845 unsigned char *p
= s
;
854 /* Signal `error' with message S, and additional argument ARG. */
857 signal_error (s
, arg
)
861 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
865 /* If FRAME is nil, return a pointer to the selected frame.
866 Otherwise, check that FRAME is a live frame, and return a pointer
867 to it. NPARAM is the parameter number of FRAME, for
868 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
869 Lisp function definitions. */
871 static INLINE
struct frame
*
872 frame_or_selected_frame (frame
, nparam
)
877 frame
= selected_frame
;
879 CHECK_LIVE_FRAME (frame
, nparam
);
880 return XFRAME (frame
);
884 /***********************************************************************
886 ***********************************************************************/
888 /* Initialize face cache and basic faces for frame F. */
894 /* Make a face cache, if F doesn't have one. */
895 if (FRAME_FACE_CACHE (f
) == NULL
)
896 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
898 #ifdef HAVE_WINDOW_SYSTEM
899 /* Make the image cache. */
900 if (FRAME_WINDOW_P (f
))
902 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
903 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
904 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
906 #endif /* HAVE_WINDOW_SYSTEM */
908 /* Realize basic faces. Must have enough information in frame
909 parameters to realize basic faces at this point. */
910 #ifdef HAVE_X_WINDOWS
911 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
914 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
916 if (!realize_basic_faces (f
))
921 /* Free face cache of frame F. Called from Fdelete_frame. */
927 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
931 free_face_cache (face_cache
);
932 FRAME_FACE_CACHE (f
) = NULL
;
935 #ifdef HAVE_WINDOW_SYSTEM
936 if (FRAME_WINDOW_P (f
))
938 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
941 --image_cache
->refcount
;
942 if (image_cache
->refcount
== 0)
943 free_image_cache (f
);
946 #endif /* HAVE_WINDOW_SYSTEM */
950 /* Clear face caches, and recompute basic faces for frame F. Call
951 this after changing frame parameters on which those faces depend,
952 or when realized faces have been freed due to changing attributes
956 recompute_basic_faces (f
)
959 if (FRAME_FACE_CACHE (f
))
961 clear_face_cache (0);
962 if (!realize_basic_faces (f
))
968 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
969 try to free unused fonts, too. */
972 clear_face_cache (clear_fonts_p
)
975 #ifdef HAVE_WINDOW_SYSTEM
976 Lisp_Object tail
, frame
;
980 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
982 /* From time to time see if we can unload some fonts. This also
983 frees all realized faces on all frames. Fonts needed by
984 faces will be loaded again when faces are realized again. */
985 clear_font_table_count
= 0;
987 FOR_EACH_FRAME (tail
, frame
)
990 if (FRAME_WINDOW_P (f
)
991 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
993 free_all_realized_faces (frame
);
994 clear_font_table (f
);
1000 /* Clear GCs of realized faces. */
1001 FOR_EACH_FRAME (tail
, frame
)
1004 if (FRAME_WINDOW_P (f
))
1006 clear_face_gcs (FRAME_FACE_CACHE (f
));
1007 clear_image_cache (f
, 0);
1011 #endif /* HAVE_WINDOW_SYSTEM */
1015 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
1016 "Clear face caches on all frames.\n\
1017 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
1019 Lisp_Object thoroughly
;
1021 clear_face_cache (!NILP (thoroughly
));
1022 ++face_change_count
;
1023 ++windows_or_buffers_changed
;
1029 #ifdef HAVE_WINDOW_SYSTEM
1032 /* Remove those fonts from the font table of frame F exept for the
1033 default ASCII font for the frame. Called from clear_face_cache
1034 from time to time. */
1037 clear_font_table (f
)
1040 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
1043 xassert (FRAME_WINDOW_P (f
));
1045 /* Free those fonts that are not used by the frame F as the default. */
1046 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
1048 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
1050 if (!font_info
->name
1051 || font_info
->font
== FRAME_FONT (f
))
1055 if (font_info
->full_name
!= font_info
->name
)
1056 xfree (font_info
->full_name
);
1057 xfree (font_info
->name
);
1059 /* Free the font. */
1061 #ifdef HAVE_X_WINDOWS
1062 XFreeFont (dpyinfo
->display
, font_info
->font
);
1065 w32_unload_font (dpyinfo
, font_info
->font
);
1069 /* Mark font table slot free. */
1070 font_info
->font
= NULL
;
1071 font_info
->name
= font_info
->full_name
= NULL
;
1075 #endif /* HAVE_WINDOW_SYSTEM */
1079 /***********************************************************************
1081 ***********************************************************************/
1083 #ifdef HAVE_WINDOW_SYSTEM
1085 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1086 "Value is non-nil if OBJECT is a valid bitmap specification.\n\
1087 A bitmap specification is either a string, a file name, or a list\n\
1088 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\
1089 HEIGHT is its height, and DATA is a string containing the bits of\n\
1090 the pixmap. Bits are stored row by row, each row occupies\n\
1091 (WIDTH + 7)/8 bytes.")
1097 if (STRINGP (object
))
1098 /* If OBJECT is a string, it's a file name. */
1100 else if (CONSP (object
))
1102 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1103 HEIGHT must be integers > 0, and DATA must be string large
1104 enough to hold a bitmap of the specified size. */
1105 Lisp_Object width
, height
, data
;
1107 height
= width
= data
= Qnil
;
1111 width
= XCAR (object
);
1112 object
= XCDR (object
);
1115 height
= XCAR (object
);
1116 object
= XCDR (object
);
1118 data
= XCAR (object
);
1122 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1124 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1126 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* XINT (height
))
1131 return pixmap_p
? Qt
: Qnil
;
1135 /* Load a bitmap according to NAME (which is either a file name or a
1136 pixmap spec) for use on frame F. Value is the bitmap_id (see
1137 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1138 bitmap cannot be loaded, display a message saying so, and return
1139 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1140 if these pointers are not null. */
1143 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1146 unsigned int *w_ptr
, *h_ptr
;
1154 tem
= Fbitmap_spec_p (name
);
1156 wrong_type_argument (Qbitmap_spec_p
, name
);
1161 /* Decode a bitmap spec into a bitmap. */
1166 w
= XINT (Fcar (name
));
1167 h
= XINT (Fcar (Fcdr (name
)));
1168 bits
= Fcar (Fcdr (Fcdr (name
)));
1170 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
1175 /* It must be a string -- a file name. */
1176 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1182 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1193 ++npixmaps_allocated
;
1196 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1199 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1205 #endif /* HAVE_WINDOW_SYSTEM */
1209 /***********************************************************************
1211 ***********************************************************************/
1213 #ifdef HAVE_WINDOW_SYSTEM
1215 /* Update the line_height of frame F. Return non-zero if line height
1219 frame_update_line_height (f
)
1222 int line_height
, changed_p
;
1224 line_height
= FONT_HEIGHT (FRAME_FONT (f
));
1225 changed_p
= line_height
!= FRAME_LINE_HEIGHT (f
);
1226 FRAME_LINE_HEIGHT (f
) = line_height
;
1230 #endif /* HAVE_WINDOW_SYSTEM */
1233 /***********************************************************************
1235 ***********************************************************************/
1237 #ifdef HAVE_WINDOW_SYSTEM
1239 /* Load font of face FACE which is used on frame F to display
1240 character C. The name of the font to load is determined by lface
1241 and fontset of FACE. */
1244 load_face_font (f
, face
, c
)
1249 struct font_info
*font_info
= NULL
;
1252 face
->font_info_id
= -1;
1255 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
);
1260 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1265 face
->font_info_id
= font_info
->font_idx
;
1266 face
->font
= font_info
->font
;
1267 face
->font_name
= font_info
->full_name
;
1270 x_free_gc (f
, face
->gc
);
1275 add_to_log ("Unable to load font %s",
1276 build_string (font_name
), Qnil
);
1280 #endif /* HAVE_WINDOW_SYSTEM */
1284 /***********************************************************************
1286 ***********************************************************************/
1288 /* A version of defined_color for non-X frames. */
1291 tty_defined_color (f
, color_name
, color_def
, alloc
)
1297 Lisp_Object color_desc
;
1298 unsigned long color_idx
= FACE_TTY_DEFAULT_COLOR
;
1299 unsigned long red
= 0, green
= 0, blue
= 0;
1302 if (*color_name
&& !NILP (Ffboundp (Qtty_color_desc
)))
1306 XSETFRAME (frame
, f
);
1308 color_desc
= call2 (Qtty_color_desc
, build_string (color_name
), frame
);
1309 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1311 color_idx
= XINT (XCAR (XCDR (color_desc
)));
1312 if (CONSP (XCDR (XCDR (color_desc
))))
1314 red
= XINT (XCAR (XCDR (XCDR (color_desc
))));
1315 green
= XINT (XCAR (XCDR (XCDR (XCDR (color_desc
)))));
1316 blue
= XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc
))))));
1320 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1321 /* We were called early during startup, and the colors are not
1322 yet set up in tty-defined-color-alist. Don't return a failure
1323 indication, since this produces the annoying "Unable to
1324 load color" messages in the *Messages* buffer. */
1327 if (color_idx
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1329 if (strcmp (color_name
, "unspecified-fg") == 0)
1330 color_idx
= FACE_TTY_DEFAULT_FG_COLOR
;
1331 else if (strcmp (color_name
, "unspecified-bg") == 0)
1332 color_idx
= FACE_TTY_DEFAULT_BG_COLOR
;
1335 if (color_idx
!= FACE_TTY_DEFAULT_COLOR
)
1338 color_def
->pixel
= color_idx
;
1339 color_def
->red
= red
;
1340 color_def
->green
= green
;
1341 color_def
->blue
= blue
;
1347 /* Decide if color named COLOR_NAME is valid for the display
1348 associated with the frame F; if so, return the rgb values in
1349 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1351 This does the right thing for any type of frame. */
1354 defined_color (f
, color_name
, color_def
, alloc
)
1360 if (!FRAME_WINDOW_P (f
))
1361 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1362 #ifdef HAVE_X_WINDOWS
1363 else if (FRAME_X_P (f
))
1364 return x_defined_color (f
, color_name
, color_def
, alloc
);
1367 else if (FRAME_W32_P (f
))
1368 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1371 else if (FRAME_MAC_P (f
))
1372 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1379 /* Given the index IDX of a tty color on frame F, return its name, a
1383 tty_color_name (f
, idx
)
1387 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1390 Lisp_Object coldesc
;
1392 XSETFRAME (frame
, f
);
1393 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1395 if (!NILP (coldesc
))
1396 return XCAR (coldesc
);
1399 /* We can have an MSDOG frame under -nw for a short window of
1400 opportunity before internal_terminal_init is called. DTRT. */
1401 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1402 return msdos_stdcolor_name (idx
);
1405 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1406 return build_string (unspecified_fg
);
1407 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1408 return build_string (unspecified_bg
);
1411 return vga_stdcolor_name (idx
);
1414 return Qunspecified
;
1418 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1419 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1422 face_color_gray_p (f
, color_name
)
1429 if (defined_color (f
, color_name
, &color
, 0))
1430 gray_p
= ((abs (color
.red
- color
.green
)
1431 < max (color
.red
, color
.green
) / 20)
1432 && (abs (color
.green
- color
.blue
)
1433 < max (color
.green
, color
.blue
) / 20)
1434 && (abs (color
.blue
- color
.red
)
1435 < max (color
.blue
, color
.red
) / 20));
1443 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1444 BACKGROUND_P non-zero means the color will be used as background
1448 face_color_supported_p (f
, color_name
, background_p
)
1456 XSETFRAME (frame
, f
);
1457 return (FRAME_WINDOW_P (f
)
1458 ? (!NILP (Fxw_display_color_p (frame
))
1459 || xstricmp (color_name
, "black") == 0
1460 || xstricmp (color_name
, "white") == 0
1462 && face_color_gray_p (f
, color_name
))
1463 || (!NILP (Fx_display_grayscale_p (frame
))
1464 && face_color_gray_p (f
, color_name
)))
1465 : tty_defined_color (f
, color_name
, ¬_used
, 0));
1469 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1470 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1471 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1472 If FRAME is nil or omitted, use the selected frame.")
1474 Lisp_Object color
, frame
;
1478 CHECK_FRAME (frame
, 0);
1479 CHECK_STRING (color
, 0);
1481 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1485 DEFUN ("color-supported-p", Fcolor_supported_p
,
1486 Scolor_supported_p
, 2, 3, 0,
1487 "Return non-nil if COLOR can be displayed on FRAME.\n\
1488 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1489 If FRAME is nil or omitted, use the selected frame.\n\
1490 COLOR must be a valid color name.")
1491 (color
, frame
, background_p
)
1492 Lisp_Object frame
, color
, background_p
;
1496 CHECK_FRAME (frame
, 0);
1497 CHECK_STRING (color
, 0);
1499 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1505 /* Load color with name NAME for use by face FACE on frame F.
1506 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1507 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1508 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1509 pixel color. If color cannot be loaded, display a message, and
1510 return the foreground, background or underline color of F, but
1511 record that fact in flags of the face so that we don't try to free
1515 load_color (f
, face
, name
, target_index
)
1519 enum lface_attribute_index target_index
;
1523 xassert (STRINGP (name
));
1524 xassert (target_index
== LFACE_FOREGROUND_INDEX
1525 || target_index
== LFACE_BACKGROUND_INDEX
1526 || target_index
== LFACE_UNDERLINE_INDEX
1527 || target_index
== LFACE_OVERLINE_INDEX
1528 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1529 || target_index
== LFACE_BOX_INDEX
);
1531 /* if the color map is full, defined_color will return a best match
1532 to the values in an existing cell. */
1533 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1535 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1537 switch (target_index
)
1539 case LFACE_FOREGROUND_INDEX
:
1540 face
->foreground_defaulted_p
= 1;
1541 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1544 case LFACE_BACKGROUND_INDEX
:
1545 face
->background_defaulted_p
= 1;
1546 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1549 case LFACE_UNDERLINE_INDEX
:
1550 face
->underline_defaulted_p
= 1;
1551 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1554 case LFACE_OVERLINE_INDEX
:
1555 face
->overline_color_defaulted_p
= 1;
1556 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1559 case LFACE_STRIKE_THROUGH_INDEX
:
1560 face
->strike_through_color_defaulted_p
= 1;
1561 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1564 case LFACE_BOX_INDEX
:
1565 face
->box_color_defaulted_p
= 1;
1566 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1575 ++ncolors_allocated
;
1582 #ifdef HAVE_WINDOW_SYSTEM
1584 /* Load colors for face FACE which is used on frame F. Colors are
1585 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1586 of ATTRS. If the background color specified is not supported on F,
1587 try to emulate gray colors with a stipple from Vface_default_stipple. */
1590 load_face_colors (f
, face
, attrs
)
1597 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1598 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1600 /* Swap colors if face is inverse-video. */
1601 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1609 /* Check for support for foreground, not for background because
1610 face_color_supported_p is smart enough to know that grays are
1611 "supported" as background because we are supposed to use stipple
1613 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1614 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1616 x_destroy_bitmap (f
, face
->stipple
);
1617 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1618 &face
->pixmap_w
, &face
->pixmap_h
);
1621 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1622 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1626 /* Free color PIXEL on frame F. */
1629 unload_color (f
, pixel
)
1631 unsigned long pixel
;
1633 #ifdef HAVE_X_WINDOWS
1635 x_free_colors (f
, &pixel
, 1);
1641 /* Free colors allocated for FACE. */
1644 free_face_colors (f
, face
)
1648 #ifdef HAVE_X_WINDOWS
1651 if (!face
->foreground_defaulted_p
)
1653 x_free_colors (f
, &face
->foreground
, 1);
1654 IF_DEBUG (--ncolors_allocated
);
1657 if (!face
->background_defaulted_p
)
1659 x_free_colors (f
, &face
->background
, 1);
1660 IF_DEBUG (--ncolors_allocated
);
1663 if (face
->underline_p
1664 && !face
->underline_defaulted_p
)
1666 x_free_colors (f
, &face
->underline_color
, 1);
1667 IF_DEBUG (--ncolors_allocated
);
1670 if (face
->overline_p
1671 && !face
->overline_color_defaulted_p
)
1673 x_free_colors (f
, &face
->overline_color
, 1);
1674 IF_DEBUG (--ncolors_allocated
);
1677 if (face
->strike_through_p
1678 && !face
->strike_through_color_defaulted_p
)
1680 x_free_colors (f
, &face
->strike_through_color
, 1);
1681 IF_DEBUG (--ncolors_allocated
);
1684 if (face
->box
!= FACE_NO_BOX
1685 && !face
->box_color_defaulted_p
)
1687 x_free_colors (f
, &face
->box_color
, 1);
1688 IF_DEBUG (--ncolors_allocated
);
1692 #endif /* HAVE_X_WINDOWS */
1695 #endif /* HAVE_WINDOW_SYSTEM */
1699 /***********************************************************************
1701 ***********************************************************************/
1703 /* An enumerator for each field of an XLFD font name. */
1724 /* An enumerator for each possible slant value of a font. Taken from
1725 the XLFD specification. */
1733 XLFD_SLANT_REVERSE_ITALIC
,
1734 XLFD_SLANT_REVERSE_OBLIQUE
,
1738 /* Relative font weight according to XLFD documentation. */
1742 XLFD_WEIGHT_UNKNOWN
,
1743 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1744 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1745 XLFD_WEIGHT_LIGHT
, /* 30 */
1746 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1747 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1748 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1749 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1750 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1751 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1754 /* Relative proportionate width. */
1758 XLFD_SWIDTH_UNKNOWN
,
1759 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1760 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1761 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1762 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1763 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1764 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1765 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1766 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1767 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1770 /* Structure used for tables mapping XLFD weight, slant, and width
1771 names to numeric and symbolic values. */
1777 Lisp_Object
*symbol
;
1780 /* Table of XLFD slant names and their numeric and symbolic
1781 representations. This table must be sorted by slant names in
1784 static struct table_entry slant_table
[] =
1786 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1787 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1788 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1789 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1790 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1791 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1794 /* Table of XLFD weight names. This table must be sorted by weight
1795 names in ascending order. */
1797 static struct table_entry weight_table
[] =
1799 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1800 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1801 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1802 {"demi", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1803 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1804 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1805 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1806 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1807 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1808 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1809 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1810 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1811 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1812 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1813 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1814 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1817 /* Table of XLFD width names. This table must be sorted by width
1818 names in ascending order. */
1820 static struct table_entry swidth_table
[] =
1822 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1823 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1824 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1825 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1826 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1827 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1828 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1829 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1830 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1831 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1832 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1833 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1834 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1835 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1836 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1839 /* Structure used to hold the result of splitting font names in XLFD
1840 format into their fields. */
1844 /* The original name which is modified destructively by
1845 split_font_name. The pointer is kept here to be able to free it
1846 if it was allocated from the heap. */
1849 /* Font name fields. Each vector element points into `name' above.
1850 Fields are NUL-terminated. */
1851 char *fields
[XLFD_LAST
];
1853 /* Numeric values for those fields that interest us. See
1854 split_font_name for which these are. */
1855 int numeric
[XLFD_LAST
];
1857 /* Lower value mean higher priority. */
1858 int registry_priority
;
1861 /* The frame in effect when sorting font names. Set temporarily in
1862 sort_fonts so that it is available in font comparison functions. */
1864 static struct frame
*font_frame
;
1866 /* Order by which font selection chooses fonts. The default values
1867 mean `first, find a best match for the font width, then for the
1868 font height, then for weight, then for slant.' This variable can be
1869 set via set-face-font-sort-order. */
1872 static int font_sort_order
[4] = {
1873 XLFD_SWIDTH
, XLFD_POINT_SIZE
, XLFD_WEIGHT
, XLFD_SLANT
1876 static int font_sort_order
[4];
1879 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1880 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1881 is a pointer to the matching table entry or null if no table entry
1884 static struct table_entry
*
1885 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1886 struct table_entry
*table
;
1888 struct font_name
*font
;
1891 /* Function split_font_name converts fields to lower-case, so there
1892 is no need to use xstrlwr or xstricmp here. */
1893 char *s
= font
->fields
[field_index
];
1894 int low
, mid
, high
, cmp
;
1901 mid
= (low
+ high
) / 2;
1902 cmp
= strcmp (table
[mid
].name
, s
);
1916 /* Return a numeric representation for font name field
1917 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1918 has DIM entries. Value is the numeric value found or DFLT if no
1919 table entry matches. This function is used to translate weight,
1920 slant, and swidth names of XLFD font names to numeric values. */
1923 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1924 struct table_entry
*table
;
1926 struct font_name
*font
;
1930 struct table_entry
*p
;
1931 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1932 return p
? p
->numeric
: dflt
;
1936 /* Return a symbolic representation for font name field
1937 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1938 has DIM entries. Value is the symbolic value found or DFLT if no
1939 table entry matches. This function is used to translate weight,
1940 slant, and swidth names of XLFD font names to symbols. */
1942 static INLINE Lisp_Object
1943 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1944 struct table_entry
*table
;
1946 struct font_name
*font
;
1950 struct table_entry
*p
;
1951 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1952 return p
? *p
->symbol
: dflt
;
1956 /* Return a numeric value for the slant of the font given by FONT. */
1959 xlfd_numeric_slant (font
)
1960 struct font_name
*font
;
1962 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1963 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1967 /* Return a symbol representing the weight of the font given by FONT. */
1969 static INLINE Lisp_Object
1970 xlfd_symbolic_slant (font
)
1971 struct font_name
*font
;
1973 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1974 font
, XLFD_SLANT
, Qnormal
);
1978 /* Return a numeric value for the weight of the font given by FONT. */
1981 xlfd_numeric_weight (font
)
1982 struct font_name
*font
;
1984 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1985 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1989 /* Return a symbol representing the slant of the font given by FONT. */
1991 static INLINE Lisp_Object
1992 xlfd_symbolic_weight (font
)
1993 struct font_name
*font
;
1995 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1996 font
, XLFD_WEIGHT
, Qnormal
);
2000 /* Return a numeric value for the swidth of the font whose XLFD font
2001 name fields are found in FONT. */
2004 xlfd_numeric_swidth (font
)
2005 struct font_name
*font
;
2007 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
2008 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
2012 /* Return a symbolic value for the swidth of FONT. */
2014 static INLINE Lisp_Object
2015 xlfd_symbolic_swidth (font
)
2016 struct font_name
*font
;
2018 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
2019 font
, XLFD_SWIDTH
, Qnormal
);
2023 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
2024 entries. Value is a pointer to the matching table entry or null if
2025 no element of TABLE contains SYMBOL. */
2027 static struct table_entry
*
2028 face_value (table
, dim
, symbol
)
2029 struct table_entry
*table
;
2035 xassert (SYMBOLP (symbol
));
2037 for (i
= 0; i
< dim
; ++i
)
2038 if (EQ (*table
[i
].symbol
, symbol
))
2041 return i
< dim
? table
+ i
: NULL
;
2045 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
2046 entries. Value is -1 if SYMBOL is not found in TABLE. */
2049 face_numeric_value (table
, dim
, symbol
)
2050 struct table_entry
*table
;
2054 struct table_entry
*p
= face_value (table
, dim
, symbol
);
2055 return p
? p
->numeric
: -1;
2059 /* Return a numeric value representing the weight specified by Lisp
2060 symbol WEIGHT. Value is one of the enumerators of enum
2064 face_numeric_weight (weight
)
2067 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2071 /* Return a numeric value representing the slant specified by Lisp
2072 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2075 face_numeric_slant (slant
)
2078 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2082 /* Return a numeric value representing the swidth specified by Lisp
2083 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2086 face_numeric_swidth (width
)
2089 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2093 #ifdef HAVE_WINDOW_SYSTEM
2095 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2099 struct font_name
*font
;
2101 /* Function split_font_name converts fields to lower-case, so there
2102 is no need to use tolower here. */
2103 return *font
->fields
[XLFD_SPACING
] != 'p';
2107 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2109 The actual height of the font when displayed on F depends on the
2110 resolution of both the font and frame. For example, a 10pt font
2111 designed for a 100dpi display will display larger than 10pt on a
2112 75dpi display. (It's not unusual to use fonts not designed for the
2113 display one is using. For example, some intlfonts are available in
2114 72dpi versions, only.)
2116 Value is the real point size of FONT on frame F, or 0 if it cannot
2120 xlfd_point_size (f
, font
)
2122 struct font_name
*font
;
2124 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2125 char *pixel_field
= font
->fields
[XLFD_PIXEL_SIZE
];
2129 if (*pixel_field
== '[')
2131 /* The pixel size field is `[A B C D]' which specifies
2132 a transformation matrix.
2138 by which all glyphs of the font are transformed. The spec
2139 says that s scalar value N for the pixel size is equivalent
2140 to A = N * resx/resy, B = C = 0, D = N. */
2141 char *start
= pixel_field
+ 1, *end
;
2145 for (i
= 0; i
< 4; ++i
)
2147 matrix
[i
] = strtod (start
, &end
);
2151 pixel
= matrix
[3] / 10.0;
2154 pixel
= atoi (pixel_field
);
2159 real_pt
= PT_PER_INCH
* 10.0 * pixel
/ resy
+ 0.5;
2165 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2166 of frame F. This function is used to guess a point size of font
2167 when only the pixel height of the font is available. */
2170 pixel_point_size (f
, pixel
)
2174 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2178 /* As one inch is PT_PER_INCH points, PT_PER_INCH/RESY gives the
2179 point size of one dot. */
2180 real_pt
= pixel
* PT_PER_INCH
/ resy
;
2181 int_pt
= real_pt
+ 0.5;
2187 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2188 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2189 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2190 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2191 zero if the font name doesn't have the format we expect. The
2192 expected format is a font name that starts with a `-' and has
2193 XLFD_LAST fields separated by `-'. */
2196 split_font_name (f
, font
, numeric_p
)
2198 struct font_name
*font
;
2204 if (*font
->name
== '-')
2206 char *p
= xstrlwr (font
->name
) + 1;
2208 while (i
< XLFD_LAST
)
2210 font
->fields
[i
] = p
;
2213 /* Pixel and point size may be of the form `[....]'. For
2214 BNF, see XLFD spec, chapter 4. Negative values are
2215 indicated by tilde characters which we replace with
2216 `-' characters, here. */
2218 && (i
== XLFD_PIXEL_SIZE
2219 || i
== XLFD_POINT_SIZE
))
2224 for (++p
; *p
&& *p
!= ']'; ++p
)
2228 /* Check that the matrix contains 4 floating point
2230 for (j
= 0, start
= font
->fields
[i
] + 1;
2233 if (strtod (start
, &end
) == 0 && start
== end
)
2240 while (*p
&& *p
!= '-')
2250 success_p
= i
== XLFD_LAST
;
2252 /* If requested, and font name was in the expected format,
2253 compute numeric values for some fields. */
2254 if (numeric_p
&& success_p
)
2256 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2257 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2258 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2259 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2260 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2261 font
->numeric
[XLFD_AVGWIDTH
] = atoi (font
->fields
[XLFD_AVGWIDTH
]);
2264 /* Initialize it to zero. It will be overridden by font_list while
2265 trying alternate registries. */
2266 font
->registry_priority
= 0;
2272 /* Build an XLFD font name from font name fields in FONT. Value is a
2273 pointer to the font name, which is allocated via xmalloc. */
2276 build_font_name (font
)
2277 struct font_name
*font
;
2281 char *font_name
= (char *) xmalloc (size
);
2282 int total_length
= 0;
2284 for (i
= 0; i
< XLFD_LAST
; ++i
)
2286 /* Add 1 because of the leading `-'. */
2287 int len
= strlen (font
->fields
[i
]) + 1;
2289 /* Reallocate font_name if necessary. Add 1 for the final
2291 if (total_length
+ len
+ 1 >= size
)
2293 int new_size
= max (2 * size
, size
+ len
+ 1);
2294 int sz
= new_size
* sizeof *font_name
;
2295 font_name
= (char *) xrealloc (font_name
, sz
);
2299 font_name
[total_length
] = '-';
2300 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2301 total_length
+= len
;
2304 font_name
[total_length
] = 0;
2309 /* Free an array FONTS of N font_name structures. This frees FONTS
2310 itself and all `name' fields in its elements. */
2313 free_font_names (fonts
, n
)
2314 struct font_name
*fonts
;
2318 xfree (fonts
[--n
].name
);
2323 /* Sort vector FONTS of font_name structures which contains NFONTS
2324 elements using qsort and comparison function CMPFN. F is the frame
2325 on which the fonts will be used. The global variable font_frame
2326 is temporarily set to F to make it available in CMPFN. */
2329 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2331 struct font_name
*fonts
;
2333 int (*cmpfn
) P_ ((const void *, const void *));
2336 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2341 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2342 display in x_display_list. FONTS is a pointer to a vector of
2343 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2344 alternative patterns from Valternate_fontname_alist if no fonts are
2345 found matching PATTERN.
2347 For all fonts found, set FONTS[i].name to the name of the font,
2348 allocated via xmalloc, and split font names into fields. Ignore
2349 fonts that we can't parse. Value is the number of fonts found. */
2352 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
)
2355 struct font_name
*fonts
;
2356 int nfonts
, try_alternatives_p
;
2360 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2361 better to do it the other way around. */
2363 Lisp_Object lpattern
, tem
;
2365 lpattern
= build_string (pattern
);
2367 /* Get the list of fonts matching PATTERN. */
2370 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2373 lfonts
= x_list_fonts (f
, lpattern
, -1, nfonts
);
2376 /* Make a copy of the font names we got from X, and
2377 split them into fields. */
2379 for (tem
= lfonts
; CONSP (tem
) && n
< nfonts
; tem
= XCDR (tem
))
2381 Lisp_Object elt
, tail
;
2382 char *name
= XSTRING (XCAR (tem
))->data
;
2384 /* Ignore fonts matching a pattern from face-ignored-fonts. */
2385 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2389 && fast_c_string_match_ignore_case (elt
, name
) >= 0)
2398 /* Make a copy of the font name. */
2399 fonts
[n
].name
= xstrdup (name
);
2401 if (split_font_name (f
, fonts
+ n
, 1))
2403 if (font_scalable_p (fonts
+ n
)
2404 && !may_use_scalable_font_p (name
))
2407 xfree (fonts
[n
].name
);
2413 xfree (fonts
[n
].name
);
2416 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2417 if (n
== 0 && try_alternatives_p
)
2419 Lisp_Object list
= Valternate_fontname_alist
;
2421 while (CONSP (list
))
2423 Lisp_Object entry
= XCAR (list
);
2425 && STRINGP (XCAR (entry
))
2426 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2433 Lisp_Object patterns
= XCAR (list
);
2436 while (CONSP (patterns
)
2437 /* If list is screwed up, give up. */
2438 && (name
= XCAR (patterns
),
2440 /* Ignore patterns equal to PATTERN because we tried that
2441 already with no success. */
2442 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2443 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2446 patterns
= XCDR (patterns
);
2454 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2455 using comparison function CMPFN. Value is the number of fonts
2456 found. If value is non-zero, *FONTS is set to a vector of
2457 font_name structures allocated from the heap containing matching
2458 fonts. Each element of *FONTS contains a name member that is also
2459 allocated from the heap. Font names in these structures are split
2460 into fields. Use free_font_names to free such an array. */
2463 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2466 int (*cmpfn
) P_ ((const void *, const void *));
2467 struct font_name
**fonts
;
2471 /* Get the list of fonts matching pattern. 100 should suffice. */
2472 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2473 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2474 nfonts
= XFASTINT (Vfont_list_limit
);
2476 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2477 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1);
2479 /* Sort the resulting array and return it in *FONTS. If no
2480 fonts were found, make sure to set *FONTS to null. */
2482 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2493 /* Compare two font_name structures *A and *B. Value is analogous to
2494 strcmp. Sort order is given by the global variable
2495 font_sort_order. Font names are sorted so that, everything else
2496 being equal, fonts with a resolution closer to that of the frame on
2497 which they are used are listed first. The global variable
2498 font_frame is the frame on which we operate. */
2501 cmp_font_names (a
, b
)
2504 struct font_name
*x
= (struct font_name
*) a
;
2505 struct font_name
*y
= (struct font_name
*) b
;
2508 /* All strings have been converted to lower-case by split_font_name,
2509 so we can use strcmp here. */
2510 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2515 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2517 int j
= font_sort_order
[i
];
2518 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2523 /* Everything else being equal, we prefer fonts with an
2524 y-resolution closer to that of the frame. */
2525 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2526 int x_resy
= x
->numeric
[XLFD_RESY
];
2527 int y_resy
= y
->numeric
[XLFD_RESY
];
2528 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2536 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2537 is non-nil list fonts matching that pattern. Otherwise, if
2538 REGISTRY is non-nil return only fonts with that registry, otherwise
2539 return fonts of any registry. Set *FONTS to a vector of font_name
2540 structures allocated from the heap containing the fonts found.
2541 Value is the number of fonts found. */
2544 font_list_1 (f
, pattern
, family
, registry
, fonts
)
2546 Lisp_Object pattern
, family
, registry
;
2547 struct font_name
**fonts
;
2549 char *pattern_str
, *family_str
, *registry_str
;
2553 family_str
= (NILP (family
) ? "*" : (char *) XSTRING (family
)->data
);
2554 registry_str
= (NILP (registry
) ? "*" : (char *) XSTRING (registry
)->data
);
2556 pattern_str
= (char *) alloca (strlen (family_str
)
2557 + strlen (registry_str
)
2559 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2560 strcat (pattern_str
, family_str
);
2561 strcat (pattern_str
, "-*-");
2562 strcat (pattern_str
, registry_str
);
2563 if (!index (registry_str
, '-'))
2565 if (registry_str
[strlen (registry_str
) - 1] == '*')
2566 strcat (pattern_str
, "-*");
2568 strcat (pattern_str
, "*-*");
2572 pattern_str
= (char *) XSTRING (pattern
)->data
;
2574 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2578 /* Concatenate font list FONTS1 and FONTS2. FONTS1 and FONTS2
2579 contains NFONTS1 fonts and NFONTS2 fonts respectively. Return a
2580 pointer to a newly allocated font list. FONTS1 and FONTS2 are
2583 static struct font_name
*
2584 concat_font_list (fonts1
, nfonts1
, fonts2
, nfonts2
)
2585 struct font_name
*fonts1
, *fonts2
;
2586 int nfonts1
, nfonts2
;
2588 int new_nfonts
= nfonts1
+ nfonts2
;
2589 struct font_name
*new_fonts
;
2591 new_fonts
= (struct font_name
*) xmalloc (sizeof *new_fonts
* new_nfonts
);
2592 bcopy (fonts1
, new_fonts
, sizeof *new_fonts
* nfonts1
);
2593 bcopy (fonts2
, new_fonts
+ nfonts1
, sizeof *new_fonts
* nfonts2
);
2600 /* Get a sorted list of fonts of family FAMILY on frame F.
2602 If PATTERN is non-nil list fonts matching that pattern.
2604 If REGISTRY is non-nil, return fonts with that registry and the
2605 alternative registries from Vface_alternative_font_registry_alist.
2607 If REGISTRY is nil return fonts of any registry.
2609 Set *FONTS to a vector of font_name structures allocated from the
2610 heap containing the fonts found. Value is the number of fonts
2614 font_list (f
, pattern
, family
, registry
, fonts
)
2616 Lisp_Object pattern
, family
, registry
;
2617 struct font_name
**fonts
;
2619 int nfonts
= font_list_1 (f
, pattern
, family
, registry
, fonts
);
2621 if (!NILP (registry
)
2622 && CONSP (Vface_alternative_font_registry_alist
))
2626 alter
= Fassoc (registry
, Vface_alternative_font_registry_alist
);
2631 for (alter
= XCDR (alter
), reg_prio
= 1;
2633 alter
= XCDR (alter
), reg_prio
++)
2634 if (STRINGP (XCAR (alter
)))
2637 struct font_name
*fonts2
;
2639 nfonts2
= font_list_1 (f
, pattern
, family
, XCAR (alter
),
2641 for (i
= 0; i
< nfonts2
; i
++)
2642 fonts2
[i
].registry_priority
= reg_prio
;
2643 *fonts
= (nfonts
> 0
2644 ? concat_font_list (*fonts
, nfonts
, fonts2
, nfonts2
)
2655 /* Remove elements from LIST whose cars are `equal'. Called from
2656 x-family-fonts and x-font-family-list to remove duplicate font
2660 remove_duplicates (list
)
2663 Lisp_Object tail
= list
;
2665 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2667 Lisp_Object next
= XCDR (tail
);
2668 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2669 XCDR (tail
) = XCDR (next
);
2676 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2677 "Return a list of available fonts of family FAMILY on FRAME.\n\
2678 If FAMILY is omitted or nil, list all families.\n\
2679 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2681 If FRAME is omitted or nil, use the selected frame.\n\
2682 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2683 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2684 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2685 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2686 width, weight and slant of the font. These symbols are the same as for\n\
2687 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2688 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2689 giving the registry and encoding of the font.\n\
2690 The result list is sorted according to the current setting of\n\
2691 the face font sort order.")
2693 Lisp_Object family
, frame
;
2695 struct frame
*f
= check_x_frame (frame
);
2696 struct font_name
*fonts
;
2699 struct gcpro gcpro1
;
2702 CHECK_STRING (family
, 1);
2706 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2707 for (i
= nfonts
- 1; i
>= 0; --i
)
2709 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2712 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2713 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2714 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2715 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2716 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2717 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2718 tem
= build_font_name (fonts
+ i
);
2719 ASET (v
, 6, build_string (tem
));
2720 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2721 fonts
[i
].fields
[XLFD_ENCODING
]);
2722 ASET (v
, 7, build_string (tem
));
2725 result
= Fcons (v
, result
);
2728 remove_duplicates (result
);
2729 free_font_names (fonts
, nfonts
);
2735 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2737 "Return a list of available font families on FRAME.\n\
2738 If FRAME is omitted or nil, use the selected frame.\n\
2739 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2740 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2745 struct frame
*f
= check_x_frame (frame
);
2747 struct font_name
*fonts
;
2749 struct gcpro gcpro1
;
2750 int count
= specpdl_ptr
- specpdl
;
2753 /* Let's consider all fonts. Increase the limit for matching
2754 fonts until we have them all. */
2757 specbind (intern ("font-list-limit"), make_number (limit
));
2758 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2760 if (nfonts
== limit
)
2762 free_font_names (fonts
, nfonts
);
2771 for (i
= nfonts
- 1; i
>= 0; --i
)
2772 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2773 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2776 remove_duplicates (result
);
2777 free_font_names (fonts
, nfonts
);
2779 return unbind_to (count
, result
);
2783 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2784 "Return a list of the names of available fonts matching PATTERN.\n\
2785 If optional arguments FACE and FRAME are specified, return only fonts\n\
2786 the same size as FACE on FRAME.\n\
2787 PATTERN is a string, perhaps with wildcard characters;\n\
2788 the * character matches any substring, and\n\
2789 the ? character matches any single character.\n\
2790 PATTERN is case-insensitive.\n\
2791 FACE is a face name--a symbol.\n\
2793 The return value is a list of strings, suitable as arguments to\n\
2796 Fonts Emacs can't use may or may not be excluded\n\
2797 even if they match PATTERN and FACE.\n\
2798 The optional fourth argument MAXIMUM sets a limit on how many\n\
2799 fonts to match. The first MAXIMUM fonts are reported.\n\
2800 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2801 occupied by a character of a font. In that case, return only fonts\n\
2802 the WIDTH times as wide as FACE on FRAME.")
2803 (pattern
, face
, frame
, maximum
, width
)
2804 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2811 CHECK_STRING (pattern
, 0);
2817 CHECK_NATNUM (maximum
, 0);
2818 maxnames
= XINT (maximum
);
2822 CHECK_NUMBER (width
, 4);
2824 /* We can't simply call check_x_frame because this function may be
2825 called before any frame is created. */
2826 f
= frame_or_selected_frame (frame
, 2);
2827 if (!FRAME_WINDOW_P (f
))
2829 /* Perhaps we have not yet created any frame. */
2834 /* Determine the width standard for comparison with the fonts we find. */
2840 /* This is of limited utility since it works with character
2841 widths. Keep it for compatibility. --gerd. */
2842 int face_id
= lookup_named_face (f
, face
, 0);
2843 struct face
*face
= (face_id
< 0
2845 : FACE_FROM_ID (f
, face_id
));
2847 if (face
&& face
->font
)
2848 size
= FONT_WIDTH (face
->font
);
2850 size
= FONT_WIDTH (FRAME_FONT (f
));
2853 size
*= XINT (width
);
2857 Lisp_Object args
[2];
2859 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2861 /* We don't have to check fontsets. */
2863 args
[1] = list_fontsets (f
, pattern
, size
);
2864 return Fnconc (2, args
);
2868 #endif /* HAVE_WINDOW_SYSTEM */
2872 /***********************************************************************
2874 ***********************************************************************/
2876 /* Access face attributes of face LFACE, a Lisp vector. */
2878 #define LFACE_FAMILY(LFACE) AREF ((LFACE), LFACE_FAMILY_INDEX)
2879 #define LFACE_HEIGHT(LFACE) AREF ((LFACE), LFACE_HEIGHT_INDEX)
2880 #define LFACE_WEIGHT(LFACE) AREF ((LFACE), LFACE_WEIGHT_INDEX)
2881 #define LFACE_SLANT(LFACE) AREF ((LFACE), LFACE_SLANT_INDEX)
2882 #define LFACE_UNDERLINE(LFACE) AREF ((LFACE), LFACE_UNDERLINE_INDEX)
2883 #define LFACE_INVERSE(LFACE) AREF ((LFACE), LFACE_INVERSE_INDEX)
2884 #define LFACE_FOREGROUND(LFACE) AREF ((LFACE), LFACE_FOREGROUND_INDEX)
2885 #define LFACE_BACKGROUND(LFACE) AREF ((LFACE), LFACE_BACKGROUND_INDEX)
2886 #define LFACE_STIPPLE(LFACE) AREF ((LFACE), LFACE_STIPPLE_INDEX)
2887 #define LFACE_SWIDTH(LFACE) AREF ((LFACE), LFACE_SWIDTH_INDEX)
2888 #define LFACE_OVERLINE(LFACE) AREF ((LFACE), LFACE_OVERLINE_INDEX)
2889 #define LFACE_STRIKE_THROUGH(LFACE) AREF ((LFACE), LFACE_STRIKE_THROUGH_INDEX)
2890 #define LFACE_BOX(LFACE) AREF ((LFACE), LFACE_BOX_INDEX)
2891 #define LFACE_FONT(LFACE) AREF ((LFACE), LFACE_FONT_INDEX)
2892 #define LFACE_INHERIT(LFACE) AREF ((LFACE), LFACE_INHERIT_INDEX)
2893 #define LFACE_AVGWIDTH(LFACE) AREF ((LFACE), LFACE_AVGWIDTH_INDEX)
2895 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2896 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2898 #define LFACEP(LFACE) \
2900 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2901 && EQ (AREF (LFACE, 0), Qface))
2906 /* Check consistency of Lisp face attribute vector ATTRS. */
2909 check_lface_attrs (attrs
)
2912 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2913 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2914 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2915 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2916 xassert (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
2917 || INTEGERP (attrs
[LFACE_AVGWIDTH_INDEX
]));
2918 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2919 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
2920 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
2921 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
2922 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2923 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2924 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2925 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2926 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2927 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2928 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2929 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2930 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2931 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2932 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2933 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2934 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2935 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2936 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2937 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2938 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2939 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2940 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2941 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2942 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2943 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2944 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2945 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2946 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2947 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2948 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2949 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2950 #ifdef HAVE_WINDOW_SYSTEM
2951 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2952 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2953 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2954 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2955 || NILP (attrs
[LFACE_FONT_INDEX
])
2956 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
2961 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2969 xassert (LFACEP (lface
));
2970 check_lface_attrs (XVECTOR (lface
)->contents
);
2974 #else /* GLYPH_DEBUG == 0 */
2976 #define check_lface_attrs(attrs) (void) 0
2977 #define check_lface(lface) (void) 0
2979 #endif /* GLYPH_DEBUG == 0 */
2982 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2983 to make it a symvol. If FACE_NAME is an alias for another face,
2984 return that face's name. */
2987 resolve_face_name (face_name
)
2988 Lisp_Object face_name
;
2990 Lisp_Object aliased
;
2992 if (STRINGP (face_name
))
2993 face_name
= intern (XSTRING (face_name
)->data
);
2995 while (SYMBOLP (face_name
))
2997 aliased
= Fget (face_name
, Qface_alias
);
3001 face_name
= aliased
;
3008 /* Return the face definition of FACE_NAME on frame F. F null means
3009 return the definition for new frames. FACE_NAME may be a string or
3010 a symbol (apparently Emacs 20.2 allowed strings as face names in
3011 face text properties; Ediff uses that). If FACE_NAME is an alias
3012 for another face, return that face's definition. If SIGNAL_P is
3013 non-zero, signal an error if FACE_NAME is not a valid face name.
3014 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
3017 static INLINE Lisp_Object
3018 lface_from_face_name (f
, face_name
, signal_p
)
3020 Lisp_Object face_name
;
3025 face_name
= resolve_face_name (face_name
);
3028 lface
= assq_no_quit (face_name
, f
->face_alist
);
3030 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
3033 lface
= XCDR (lface
);
3035 signal_error ("Invalid face", face_name
);
3037 check_lface (lface
);
3042 /* Get face attributes of face FACE_NAME from frame-local faces on
3043 frame F. Store the resulting attributes in ATTRS which must point
3044 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
3045 is non-zero, signal an error if FACE_NAME does not name a face.
3046 Otherwise, value is zero if FACE_NAME is not a face. */
3049 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
3051 Lisp_Object face_name
;
3058 lface
= lface_from_face_name (f
, face_name
, signal_p
);
3061 bcopy (XVECTOR (lface
)->contents
, attrs
,
3062 LFACE_VECTOR_SIZE
* sizeof *attrs
);
3072 /* Non-zero if all attributes in face attribute vector ATTRS are
3073 specified, i.e. are non-nil. */
3076 lface_fully_specified_p (attrs
)
3081 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3082 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
3083 && i
!= LFACE_AVGWIDTH_INDEX
)
3084 if (UNSPECIFIEDP (attrs
[i
]))
3087 return i
== LFACE_VECTOR_SIZE
;
3090 #ifdef HAVE_WINDOW_SYSTEM
3092 /* Set font-related attributes of Lisp face LFACE from the fullname of
3093 the font opened by FONTNAME. If FORCE_P is zero, set only
3094 unspecified attributes of LFACE. The exception is `font'
3095 attribute. It is set to FONTNAME as is regardless of FORCE_P.
3097 If FONTNAME is not available on frame F,
3098 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
3099 If the fullname is not in a valid XLFD format,
3100 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
3101 in LFACE and return 1.
3102 Otherwise, return 1. */
3105 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
3108 Lisp_Object fontname
;
3109 int force_p
, may_fail_p
;
3111 struct font_name font
;
3116 char *font_name
= XSTRING (fontname
)->data
;
3117 struct font_info
*font_info
;
3119 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
3120 fontset
= fs_query_fontset (fontname
, 0);
3122 font_name
= XSTRING (fontset_ascii (fontset
))->data
;
3124 /* Check if FONT_NAME is surely available on the system. Usually
3125 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
3126 returns quickly. But, even if FONT_NAME is not yet cached,
3127 caching it now is not futail because we anyway load the font
3130 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3140 font
.name
= STRDUPA (font_info
->full_name
);
3141 have_xlfd_p
= split_font_name (f
, &font
, 1);
3143 /* Set attributes only if unspecified, otherwise face defaults for
3144 new frames would never take effect. If we couldn't get a font
3145 name conforming to XLFD, set normal values. */
3147 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3152 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3153 + strlen (font
.fields
[XLFD_FOUNDRY
])
3155 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3156 font
.fields
[XLFD_FAMILY
]);
3157 val
= build_string (buffer
);
3160 val
= build_string ("*");
3161 LFACE_FAMILY (lface
) = val
;
3164 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3167 pt
= xlfd_point_size (f
, &font
);
3169 pt
= pixel_point_size (f
, font_info
->height
* 10);
3171 LFACE_HEIGHT (lface
) = make_number (pt
);
3174 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3175 LFACE_SWIDTH (lface
)
3176 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3178 if (force_p
|| UNSPECIFIEDP (LFACE_AVGWIDTH (lface
)))
3179 LFACE_AVGWIDTH (lface
)
3181 ? make_number (font
.numeric
[XLFD_AVGWIDTH
])
3184 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3185 LFACE_WEIGHT (lface
)
3186 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3188 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3190 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3192 LFACE_FONT (lface
) = fontname
;
3197 #endif /* HAVE_WINDOW_SYSTEM */
3200 /* Merges the face height FROM with the face height TO, and returns the
3201 merged height. If FROM is an invalid height, then INVALID is
3202 returned instead. FROM may be a either an absolute face height or a
3203 `relative' height, and TO must be an absolute height. The returned
3204 value is always an absolute height. GCPRO is a lisp value that will
3205 be protected from garbage-collection if this function makes a call
3209 merge_face_heights (from
, to
, invalid
, gcpro
)
3210 Lisp_Object from
, to
, invalid
, gcpro
;
3214 if (INTEGERP (from
))
3215 result
= XINT (from
);
3216 else if (NUMBERP (from
))
3217 result
= XFLOATINT (from
) * XINT (to
);
3218 #if 0 /* Probably not so useful. */
3219 else if (CONSP (from
) && CONSP (XCDR (from
)))
3221 if (EQ (XCAR(from
), Qplus
) || EQ (XCAR(from
), Qminus
))
3223 if (INTEGERP (XCAR (XCDR (from
))))
3225 int inc
= XINT (XCAR (XCDR (from
)));
3226 if (EQ (XCAR (from
), Qminus
))
3229 result
= XFASTINT (to
);
3230 if (result
+ inc
> 0)
3231 /* Note that `underflows' don't mean FROM is invalid, so
3232 we just pin the result at TO if it would otherwise be
3239 else if (FUNCTIONP (from
))
3241 /* Call function with current height as argument.
3242 From is the new height. */
3243 Lisp_Object args
[2], height
;
3244 struct gcpro gcpro1
;
3250 height
= safe_call (2, args
);
3254 if (NUMBERP (height
))
3255 result
= XFLOATINT (height
);
3259 return make_number (result
);
3265 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3266 store the resulting attributes in TO, which must be already be
3267 completely specified and contain only absolute attributes. Every
3268 specified attribute of FROM overrides the corresponding attribute of
3269 TO; relative attributes in FROM are merged with the absolute value in
3270 TO and replace it. CYCLE_CHECK is used internally to detect loops in
3271 face inheritance; it should be Qnil when called from other places. */
3274 merge_face_vectors (f
, from
, to
, cycle_check
)
3276 Lisp_Object
*from
, *to
;
3277 Lisp_Object cycle_check
;
3281 /* If FROM inherits from some other faces, merge their attributes into
3282 TO before merging FROM's direct attributes. Note that an :inherit
3283 attribute of `unspecified' is the same as one of nil; we never
3284 merge :inherit attributes, so nil is more correct, but lots of
3285 other code uses `unspecified' as a generic value for face attributes. */
3286 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3287 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3288 merge_face_inheritance (f
, from
[LFACE_INHERIT_INDEX
], to
, cycle_check
);
3290 /* If TO specifies a :font attribute, and FROM specifies some
3291 font-related attribute, we need to clear TO's :font attribute
3292 (because it will be inconsistent with whatever FROM specifies, and
3293 FROM takes precedence). */
3294 if (!NILP (to
[LFACE_FONT_INDEX
])
3295 && (!UNSPECIFIEDP (from
[LFACE_FAMILY_INDEX
])
3296 || !UNSPECIFIEDP (from
[LFACE_HEIGHT_INDEX
])
3297 || !UNSPECIFIEDP (from
[LFACE_WEIGHT_INDEX
])
3298 || !UNSPECIFIEDP (from
[LFACE_SLANT_INDEX
])
3299 || !UNSPECIFIEDP (from
[LFACE_SWIDTH_INDEX
])
3300 || !UNSPECIFIEDP (from
[LFACE_AVGWIDTH_INDEX
])))
3301 to
[LFACE_FONT_INDEX
] = Qnil
;
3303 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3304 if (!UNSPECIFIEDP (from
[i
]))
3305 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3306 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
], cycle_check
);
3310 /* TO is always an absolute face, which should inherit from nothing.
3311 We blindly copy the :inherit attribute above and fix it up here. */
3312 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3316 /* Checks the `cycle check' variable CHECK to see if it indicates that
3317 EL is part of a cycle; CHECK must be either Qnil or a value returned
3318 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3319 elements after which a cycle might be suspected; after that many
3320 elements, this macro begins consing in order to keep more precise
3323 Returns NIL if a cycle was detected, otherwise a new value for CHECK
3326 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3327 the caller should make sure that's ok. */
3329 #define CYCLE_CHECK(check, el, suspicious) \
3332 : (INTEGERP (check) \
3333 ? (XFASTINT (check) < (suspicious) \
3334 ? make_number (XFASTINT (check) + 1) \
3335 : Fcons (el, Qnil)) \
3336 : (!NILP (Fmemq ((el), (check))) \
3338 : Fcons ((el), (check)))))
3341 /* Merge face attributes from the face on frame F whose name is
3342 INHERITS, into the vector of face attributes TO; INHERITS may also be
3343 a list of face names, in which case they are applied in order.
3344 CYCLE_CHECK is used to detect loops in face inheritance.
3345 Returns true if any of the inherited attributes are `font-related'. */
3348 merge_face_inheritance (f
, inherit
, to
, cycle_check
)
3350 Lisp_Object inherit
;
3352 Lisp_Object cycle_check
;
3354 if (SYMBOLP (inherit
) && !EQ (inherit
, Qunspecified
))
3355 /* Inherit from the named face INHERIT. */
3359 /* Make sure we're not in an inheritance loop. */
3360 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3361 if (NILP (cycle_check
))
3362 /* Cycle detected, ignore any further inheritance. */
3365 lface
= lface_from_face_name (f
, inherit
, 0);
3367 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, cycle_check
);
3369 else if (CONSP (inherit
))
3370 /* Handle a list of inherited faces by calling ourselves recursively
3371 on each element. Note that we only do so for symbol elements, so
3372 it's not possible to infinitely recurse. */
3374 while (CONSP (inherit
))
3376 if (SYMBOLP (XCAR (inherit
)))
3377 merge_face_inheritance (f
, XCAR (inherit
), to
, cycle_check
);
3379 /* Check for a circular inheritance list. */
3380 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3381 if (NILP (cycle_check
))
3382 /* Cycle detected. */
3385 inherit
= XCDR (inherit
);
3391 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3392 is a face property, determine the resulting face attributes on
3393 frame F, and store them in TO. PROP may be a single face
3394 specification or a list of such specifications. Each face
3395 specification can be
3397 1. A symbol or string naming a Lisp face.
3399 2. A property list of the form (KEYWORD VALUE ...) where each
3400 KEYWORD is a face attribute name, and value is an appropriate value
3403 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3404 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3405 for compatibility with 20.2.
3407 Face specifications earlier in lists take precedence over later
3411 merge_face_vector_with_property (f
, to
, prop
)
3418 Lisp_Object first
= XCAR (prop
);
3420 if (EQ (first
, Qforeground_color
)
3421 || EQ (first
, Qbackground_color
))
3423 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3424 . COLOR). COLOR must be a string. */
3425 Lisp_Object color_name
= XCDR (prop
);
3426 Lisp_Object color
= first
;
3428 if (STRINGP (color_name
))
3430 if (EQ (color
, Qforeground_color
))
3431 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3433 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3436 add_to_log ("Invalid face color", color_name
, Qnil
);
3438 else if (SYMBOLP (first
)
3439 && *XSYMBOL (first
)->name
->data
== ':')
3441 /* Assume this is the property list form. */
3442 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3444 Lisp_Object keyword
= XCAR (prop
);
3445 Lisp_Object value
= XCAR (XCDR (prop
));
3447 if (EQ (keyword
, QCfamily
))
3449 if (STRINGP (value
))
3450 to
[LFACE_FAMILY_INDEX
] = value
;
3452 add_to_log ("Invalid face font family", value
, Qnil
);
3454 else if (EQ (keyword
, QCheight
))
3456 Lisp_Object new_height
=
3457 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3460 if (NILP (new_height
))
3461 add_to_log ("Invalid face font height", value
, Qnil
);
3463 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3465 else if (EQ (keyword
, QCweight
))
3468 && face_numeric_weight (value
) >= 0)
3469 to
[LFACE_WEIGHT_INDEX
] = value
;
3471 add_to_log ("Invalid face weight", value
, Qnil
);
3473 else if (EQ (keyword
, QCslant
))
3476 && face_numeric_slant (value
) >= 0)
3477 to
[LFACE_SLANT_INDEX
] = value
;
3479 add_to_log ("Invalid face slant", value
, Qnil
);
3481 else if (EQ (keyword
, QCunderline
))
3486 to
[LFACE_UNDERLINE_INDEX
] = value
;
3488 add_to_log ("Invalid face underline", value
, Qnil
);
3490 else if (EQ (keyword
, QCoverline
))
3495 to
[LFACE_OVERLINE_INDEX
] = value
;
3497 add_to_log ("Invalid face overline", value
, Qnil
);
3499 else if (EQ (keyword
, QCstrike_through
))
3504 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3506 add_to_log ("Invalid face strike-through", value
, Qnil
);
3508 else if (EQ (keyword
, QCbox
))
3511 value
= make_number (1);
3512 if (INTEGERP (value
)
3516 to
[LFACE_BOX_INDEX
] = value
;
3518 add_to_log ("Invalid face box", value
, Qnil
);
3520 else if (EQ (keyword
, QCinverse_video
)
3521 || EQ (keyword
, QCreverse_video
))
3523 if (EQ (value
, Qt
) || NILP (value
))
3524 to
[LFACE_INVERSE_INDEX
] = value
;
3526 add_to_log ("Invalid face inverse-video", value
, Qnil
);
3528 else if (EQ (keyword
, QCforeground
))
3530 if (STRINGP (value
))
3531 to
[LFACE_FOREGROUND_INDEX
] = value
;
3533 add_to_log ("Invalid face foreground", value
, Qnil
);
3535 else if (EQ (keyword
, QCbackground
))
3537 if (STRINGP (value
))
3538 to
[LFACE_BACKGROUND_INDEX
] = value
;
3540 add_to_log ("Invalid face background", value
, Qnil
);
3542 else if (EQ (keyword
, QCstipple
))
3544 #ifdef HAVE_X_WINDOWS
3545 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3546 if (!NILP (pixmap_p
))
3547 to
[LFACE_STIPPLE_INDEX
] = value
;
3549 add_to_log ("Invalid face stipple", value
, Qnil
);
3552 else if (EQ (keyword
, QCwidth
))
3555 && face_numeric_swidth (value
) >= 0)
3556 to
[LFACE_SWIDTH_INDEX
] = value
;
3558 add_to_log ("Invalid face width", value
, Qnil
);
3560 else if (EQ (keyword
, QCinherit
))
3562 if (SYMBOLP (value
))
3563 to
[LFACE_INHERIT_INDEX
] = value
;
3567 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3568 if (!SYMBOLP (XCAR (tail
)))
3571 to
[LFACE_INHERIT_INDEX
] = value
;
3573 add_to_log ("Invalid face inherit", value
, Qnil
);
3577 add_to_log ("Invalid attribute %s in face property",
3580 prop
= XCDR (XCDR (prop
));
3585 /* This is a list of face specs. Specifications at the
3586 beginning of the list take precedence over later
3587 specifications, so we have to merge starting with the
3588 last specification. */
3589 Lisp_Object next
= XCDR (prop
);
3591 merge_face_vector_with_property (f
, to
, next
);
3592 merge_face_vector_with_property (f
, to
, first
);
3597 /* PROP ought to be a face name. */
3598 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3600 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3602 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, Qnil
);
3607 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3608 Sinternal_make_lisp_face
, 1, 2, 0,
3609 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3610 If FACE was not known as a face before, create a new one.\n\
3611 If optional argument FRAME is specified, make a frame-local face\n\
3612 for that frame. Otherwise operate on the global face definition.\n\
3613 Value is a vector of face attributes.")
3615 Lisp_Object face
, frame
;
3617 Lisp_Object global_lface
, lface
;
3621 CHECK_SYMBOL (face
, 0);
3622 global_lface
= lface_from_face_name (NULL
, face
, 0);
3626 CHECK_LIVE_FRAME (frame
, 1);
3628 lface
= lface_from_face_name (f
, face
, 0);
3631 f
= NULL
, lface
= Qnil
;
3633 /* Add a global definition if there is none. */
3634 if (NILP (global_lface
))
3636 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3638 AREF (global_lface
, 0) = Qface
;
3639 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3640 Vface_new_frame_defaults
);
3642 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3643 face id to Lisp face is given by the vector lface_id_to_name.
3644 The mapping from Lisp face to Lisp face id is given by the
3645 property `face' of the Lisp face name. */
3646 if (next_lface_id
== lface_id_to_name_size
)
3648 int new_size
= max (50, 2 * lface_id_to_name_size
);
3649 int sz
= new_size
* sizeof *lface_id_to_name
;
3650 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3651 lface_id_to_name_size
= new_size
;
3654 lface_id_to_name
[next_lface_id
] = face
;
3655 Fput (face
, Qface
, make_number (next_lface_id
));
3659 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3660 AREF (global_lface
, i
) = Qunspecified
;
3662 /* Add a frame-local definition. */
3667 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3669 AREF (lface
, 0) = Qface
;
3670 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3673 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3674 AREF (lface
, i
) = Qunspecified
;
3677 lface
= global_lface
;
3679 xassert (LFACEP (lface
));
3680 check_lface (lface
);
3685 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3686 Sinternal_lisp_face_p
, 1, 2, 0,
3687 "Return non-nil if FACE names a face.\n\
3688 If optional second parameter FRAME is non-nil, check for the\n\
3689 existence of a frame-local face with name FACE on that frame.\n\
3690 Otherwise check for the existence of a global face.")
3692 Lisp_Object face
, frame
;
3698 CHECK_LIVE_FRAME (frame
, 1);
3699 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3702 lface
= lface_from_face_name (NULL
, face
, 0);
3708 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3709 Sinternal_copy_lisp_face
, 4, 4, 0,
3710 "Copy face FROM to TO.\n\
3711 If FRAME it t, copy the global face definition of FROM to the\n\
3712 global face definition of TO. Otherwise, copy the frame-local\n\
3713 definition of FROM on FRAME to the frame-local definition of TO\n\
3714 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3717 (from
, to
, frame
, new_frame
)
3718 Lisp_Object from
, to
, frame
, new_frame
;
3720 Lisp_Object lface
, copy
;
3722 CHECK_SYMBOL (from
, 0);
3723 CHECK_SYMBOL (to
, 1);
3724 if (NILP (new_frame
))
3729 /* Copy global definition of FROM. We don't make copies of
3730 strings etc. because 20.2 didn't do it either. */
3731 lface
= lface_from_face_name (NULL
, from
, 1);
3732 copy
= Finternal_make_lisp_face (to
, Qnil
);
3736 /* Copy frame-local definition of FROM. */
3737 CHECK_LIVE_FRAME (frame
, 2);
3738 CHECK_LIVE_FRAME (new_frame
, 3);
3739 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3740 copy
= Finternal_make_lisp_face (to
, new_frame
);
3743 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3744 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3750 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3751 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3752 "Set attribute ATTR of FACE to VALUE.\n\
3753 FRAME being a frame means change the face on that frame.\n\
3754 FRAME nil means change change the face of the selected frame.\n\
3755 FRAME t means change the default for new frames.\n\
3756 FRAME 0 means change the face on all frames, and change the default\n\
3758 (face
, attr
, value
, frame
)
3759 Lisp_Object face
, attr
, value
, frame
;
3762 Lisp_Object old_value
= Qnil
;
3763 /* Set 1 if ATTR is QCfont. */
3764 int font_attr_p
= 0;
3765 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3766 int font_related_attr_p
= 0;
3768 CHECK_SYMBOL (face
, 0);
3769 CHECK_SYMBOL (attr
, 1);
3771 face
= resolve_face_name (face
);
3773 /* If FRAME is 0, change face on all frames, and change the
3774 default for new frames. */
3775 if (INTEGERP (frame
) && XINT (frame
) == 0)
3778 Finternal_set_lisp_face_attribute (face
, attr
, value
, Qt
);
3779 FOR_EACH_FRAME (tail
, frame
)
3780 Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3784 /* Set lface to the Lisp attribute vector of FACE. */
3786 lface
= lface_from_face_name (NULL
, face
, 1);
3790 frame
= selected_frame
;
3792 CHECK_LIVE_FRAME (frame
, 3);
3793 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3795 /* If a frame-local face doesn't exist yet, create one. */
3797 lface
= Finternal_make_lisp_face (face
, frame
);
3800 if (EQ (attr
, QCfamily
))
3802 if (!UNSPECIFIEDP (value
))
3804 CHECK_STRING (value
, 3);
3805 if (XSTRING (value
)->size
== 0)
3806 signal_error ("Invalid face family", value
);
3808 old_value
= LFACE_FAMILY (lface
);
3809 LFACE_FAMILY (lface
) = value
;
3810 font_related_attr_p
= 1;
3812 else if (EQ (attr
, QCheight
))
3814 if (!UNSPECIFIEDP (value
))
3817 (EQ (face
, Qdefault
) ? value
:
3818 /* The default face must have an absolute size, otherwise, we do
3819 a test merge with a random height to see if VALUE's ok. */
3820 merge_face_heights (value
, make_number(10), Qnil
, Qnil
));
3822 if (!INTEGERP(test
) || XINT(test
) <= 0)
3823 signal_error ("Invalid face height", value
);
3826 old_value
= LFACE_HEIGHT (lface
);
3827 LFACE_HEIGHT (lface
) = value
;
3828 font_related_attr_p
= 1;
3830 else if (EQ (attr
, QCweight
))
3832 if (!UNSPECIFIEDP (value
))
3834 CHECK_SYMBOL (value
, 3);
3835 if (face_numeric_weight (value
) < 0)
3836 signal_error ("Invalid face weight", value
);
3838 old_value
= LFACE_WEIGHT (lface
);
3839 LFACE_WEIGHT (lface
) = value
;
3840 font_related_attr_p
= 1;
3842 else if (EQ (attr
, QCslant
))
3844 if (!UNSPECIFIEDP (value
))
3846 CHECK_SYMBOL (value
, 3);
3847 if (face_numeric_slant (value
) < 0)
3848 signal_error ("Invalid face slant", value
);
3850 old_value
= LFACE_SLANT (lface
);
3851 LFACE_SLANT (lface
) = value
;
3852 font_related_attr_p
= 1;
3854 else if (EQ (attr
, QCunderline
))
3856 if (!UNSPECIFIEDP (value
))
3857 if ((SYMBOLP (value
)
3859 && !EQ (value
, Qnil
))
3860 /* Underline color. */
3862 && XSTRING (value
)->size
== 0))
3863 signal_error ("Invalid face underline", value
);
3865 old_value
= LFACE_UNDERLINE (lface
);
3866 LFACE_UNDERLINE (lface
) = value
;
3868 else if (EQ (attr
, QCoverline
))
3870 if (!UNSPECIFIEDP (value
))
3871 if ((SYMBOLP (value
)
3873 && !EQ (value
, Qnil
))
3874 /* Overline color. */
3876 && XSTRING (value
)->size
== 0))
3877 signal_error ("Invalid face overline", value
);
3879 old_value
= LFACE_OVERLINE (lface
);
3880 LFACE_OVERLINE (lface
) = value
;
3882 else if (EQ (attr
, QCstrike_through
))
3884 if (!UNSPECIFIEDP (value
))
3885 if ((SYMBOLP (value
)
3887 && !EQ (value
, Qnil
))
3888 /* Strike-through color. */
3890 && XSTRING (value
)->size
== 0))
3891 signal_error ("Invalid face strike-through", value
);
3893 old_value
= LFACE_STRIKE_THROUGH (lface
);
3894 LFACE_STRIKE_THROUGH (lface
) = value
;
3896 else if (EQ (attr
, QCbox
))
3900 /* Allow t meaning a simple box of width 1 in foreground color
3903 value
= make_number (1);
3905 if (UNSPECIFIEDP (value
))
3907 else if (NILP (value
))
3909 else if (INTEGERP (value
))
3910 valid_p
= XINT (value
) != 0;
3911 else if (STRINGP (value
))
3912 valid_p
= XSTRING (value
)->size
> 0;
3913 else if (CONSP (value
))
3929 if (EQ (k
, QCline_width
))
3931 if (!INTEGERP (v
) || XINT (v
) == 0)
3934 else if (EQ (k
, QCcolor
))
3936 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3939 else if (EQ (k
, QCstyle
))
3941 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3948 valid_p
= NILP (tem
);
3954 signal_error ("Invalid face box", value
);
3956 old_value
= LFACE_BOX (lface
);
3957 LFACE_BOX (lface
) = value
;
3959 else if (EQ (attr
, QCinverse_video
)
3960 || EQ (attr
, QCreverse_video
))
3962 if (!UNSPECIFIEDP (value
))
3964 CHECK_SYMBOL (value
, 3);
3965 if (!EQ (value
, Qt
) && !NILP (value
))
3966 signal_error ("Invalid inverse-video face attribute value", value
);
3968 old_value
= LFACE_INVERSE (lface
);
3969 LFACE_INVERSE (lface
) = value
;
3971 else if (EQ (attr
, QCforeground
))
3973 if (!UNSPECIFIEDP (value
))
3975 /* Don't check for valid color names here because it depends
3976 on the frame (display) whether the color will be valid
3977 when the face is realized. */
3978 CHECK_STRING (value
, 3);
3979 if (XSTRING (value
)->size
== 0)
3980 signal_error ("Empty foreground color value", value
);
3982 old_value
= LFACE_FOREGROUND (lface
);
3983 LFACE_FOREGROUND (lface
) = value
;
3985 else if (EQ (attr
, QCbackground
))
3987 if (!UNSPECIFIEDP (value
))
3989 /* Don't check for valid color names here because it depends
3990 on the frame (display) whether the color will be valid
3991 when the face is realized. */
3992 CHECK_STRING (value
, 3);
3993 if (XSTRING (value
)->size
== 0)
3994 signal_error ("Empty background color value", value
);
3996 old_value
= LFACE_BACKGROUND (lface
);
3997 LFACE_BACKGROUND (lface
) = value
;
3999 else if (EQ (attr
, QCstipple
))
4001 #ifdef HAVE_X_WINDOWS
4002 if (!UNSPECIFIEDP (value
)
4004 && NILP (Fbitmap_spec_p (value
)))
4005 signal_error ("Invalid stipple attribute", value
);
4006 old_value
= LFACE_STIPPLE (lface
);
4007 LFACE_STIPPLE (lface
) = value
;
4008 #endif /* HAVE_X_WINDOWS */
4010 else if (EQ (attr
, QCwidth
))
4012 if (!UNSPECIFIEDP (value
))
4014 CHECK_SYMBOL (value
, 3);
4015 if (face_numeric_swidth (value
) < 0)
4016 signal_error ("Invalid face width", value
);
4018 old_value
= LFACE_SWIDTH (lface
);
4019 LFACE_SWIDTH (lface
) = value
;
4020 font_related_attr_p
= 1;
4022 else if (EQ (attr
, QCfont
))
4024 #ifdef HAVE_WINDOW_SYSTEM
4025 /* Set font-related attributes of the Lisp face from an
4030 CHECK_STRING (value
, 3);
4032 f
= SELECTED_FRAME ();
4034 f
= check_x_frame (frame
);
4036 /* VALUE may be a fontset name or an alias of fontset. In such
4037 a case, use the base fontset name. */
4038 tmp
= Fquery_fontset (value
, Qnil
);
4042 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
4043 signal_error ("Invalid font or fontset name", value
);
4046 #endif /* HAVE_WINDOW_SYSTEM */
4048 else if (EQ (attr
, QCinherit
))
4051 if (SYMBOLP (value
))
4054 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
4055 if (!SYMBOLP (XCAR (tail
)))
4058 LFACE_INHERIT (lface
) = value
;
4060 signal_error ("Invalid face inheritance", value
);
4062 else if (EQ (attr
, QCbold
))
4064 old_value
= LFACE_WEIGHT (lface
);
4065 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
4066 font_related_attr_p
= 1;
4068 else if (EQ (attr
, QCitalic
))
4070 old_value
= LFACE_SLANT (lface
);
4071 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
4072 font_related_attr_p
= 1;
4075 signal_error ("Invalid face attribute name", attr
);
4077 if (font_related_attr_p
4078 && !UNSPECIFIEDP (value
))
4079 /* If a font-related attribute other than QCfont is specified, the
4080 original `font' attribute nor that of default face is useless
4081 to determine a new font. Thus, we set it to nil so that font
4082 selection mechanism doesn't use it. */
4083 LFACE_FONT (lface
) = Qnil
;
4085 /* Changing a named face means that all realized faces depending on
4086 that face are invalid. Since we cannot tell which realized faces
4087 depend on the face, make sure they are all removed. This is done
4088 by incrementing face_change_count. The next call to
4089 init_iterator will then free realized faces. */
4091 && (EQ (attr
, QCfont
)
4092 || NILP (Fequal (old_value
, value
))))
4094 ++face_change_count
;
4095 ++windows_or_buffers_changed
;
4098 if (!UNSPECIFIEDP (value
)
4099 && NILP (Fequal (old_value
, value
)))
4105 if (EQ (face
, Qdefault
))
4107 #ifdef HAVE_WINDOW_SYSTEM
4108 /* Changed font-related attributes of the `default' face are
4109 reflected in changed `font' frame parameters. */
4110 if ((font_related_attr_p
|| font_attr_p
)
4111 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
4112 set_font_frame_param (frame
, lface
);
4114 #endif /* HAVE_WINDOW_SYSTEM */
4116 if (EQ (attr
, QCforeground
))
4117 param
= Qforeground_color
;
4118 else if (EQ (attr
, QCbackground
))
4119 param
= Qbackground_color
;
4121 #ifdef HAVE_WINDOW_SYSTEM
4123 else if (EQ (face
, Qscroll_bar
))
4125 /* Changing the colors of `scroll-bar' sets frame parameters
4126 `scroll-bar-foreground' and `scroll-bar-background'. */
4127 if (EQ (attr
, QCforeground
))
4128 param
= Qscroll_bar_foreground
;
4129 else if (EQ (attr
, QCbackground
))
4130 param
= Qscroll_bar_background
;
4132 #endif /* not WINDOWSNT */
4133 else if (EQ (face
, Qborder
))
4135 /* Changing background color of `border' sets frame parameter
4137 if (EQ (attr
, QCbackground
))
4138 param
= Qborder_color
;
4140 else if (EQ (face
, Qcursor
))
4142 /* Changing background color of `cursor' sets frame parameter
4144 if (EQ (attr
, QCbackground
))
4145 param
= Qcursor_color
;
4147 else if (EQ (face
, Qmouse
))
4149 /* Changing background color of `mouse' sets frame parameter
4151 if (EQ (attr
, QCbackground
))
4152 param
= Qmouse_color
;
4154 #endif /* HAVE_WINDOW_SYSTEM */
4155 else if (EQ (face
, Qmenu
))
4156 ++menu_face_change_count
;
4160 /* Update `default-frame-alist', which is used for new frames. */
4162 store_in_alist (&Vdefault_frame_alist
, param
, value
);
4165 /* Update the current frame's parameters. */
4168 cons
= XCAR (Vparam_value_alist
);
4169 XCAR (cons
) = param
;
4170 XCDR (cons
) = value
;
4171 Fmodify_frame_parameters (frame
, Vparam_value_alist
);
4179 #ifdef HAVE_WINDOW_SYSTEM
4181 /* Set the `font' frame parameter of FRAME determined from `default'
4182 face attributes LFACE. If a face or fontset name is explicitely
4183 specfied in LFACE, use it as is. Otherwise, determine a font name
4184 from the other font-related atrributes of LFACE. In that case, if
4185 there's no matching font, signals an error. */
4188 set_font_frame_param (frame
, lface
)
4189 Lisp_Object frame
, lface
;
4191 struct frame
*f
= XFRAME (frame
);
4193 if (FRAME_WINDOW_P (f
))
4195 Lisp_Object font_name
;
4198 if (STRINGP (LFACE_FONT (lface
)))
4199 font_name
= LFACE_FONT (lface
);
4202 /* Choose a font name that reflects LFACE's attributes and has
4203 the registry and encoding pattern specified in the default
4204 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4205 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0);
4207 error ("No font matches the specified attribute");
4208 font_name
= build_string (font
);
4212 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 /***********************************************************************
4377 ***********************************************************************/
4379 #if defined HAVE_X_WINDOWS && defined USE_X_TOOLKIT
4381 /* Make menus on frame F appear as specified by the `menu' face. */
4384 x_update_menu_appearance (f
)
4387 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
4391 && (rdb
= XrmGetDatabase (FRAME_X_DISPLAY (f
)),
4395 Lisp_Object lface
= lface_from_face_name (f
, Qmenu
, 1);
4396 struct face
*face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4397 char *myname
= XSTRING (Vx_resource_name
)->data
;
4400 const char *popup_path
= "popup_menu";
4402 const char *popup_path
= "menu.popup";
4405 if (STRINGP (LFACE_FOREGROUND (lface
)))
4407 sprintf (line
, "%s.%s*foreground: %s",
4409 XSTRING (LFACE_FOREGROUND (lface
))->data
);
4410 XrmPutLineResource (&rdb
, line
);
4411 sprintf (line
, "%s.pane.menubar*foreground: %s",
4412 myname
, XSTRING (LFACE_FOREGROUND (lface
))->data
);
4413 XrmPutLineResource (&rdb
, line
);
4417 if (STRINGP (LFACE_BACKGROUND (lface
)))
4419 sprintf (line
, "%s.%s*background: %s",
4421 XSTRING (LFACE_BACKGROUND (lface
))->data
);
4422 XrmPutLineResource (&rdb
, line
);
4423 sprintf (line
, "%s.pane.menubar*background: %s",
4424 myname
, XSTRING (LFACE_BACKGROUND (lface
))->data
);
4425 XrmPutLineResource (&rdb
, line
);
4430 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4431 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4432 || !UNSPECIFIEDP (LFACE_AVGWIDTH (lface
))
4433 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4434 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4435 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4438 const char *suffix
= "List";
4440 const char *suffix
= "";
4442 sprintf (line
, "%s.pane.menubar*font%s: %s",
4443 myname
, suffix
, face
->font_name
);
4444 XrmPutLineResource (&rdb
, line
);
4445 sprintf (line
, "%s.%s*font%s: %s",
4446 myname
, popup_path
, suffix
, face
->font_name
);
4447 XrmPutLineResource (&rdb
, line
);
4451 if (changed_p
&& f
->output_data
.x
->menubar_widget
)
4453 free_frame_menubar (f
);
4454 set_frame_menubar (f
, 1, 1);
4459 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
4463 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4464 Sinternal_get_lisp_face_attribute
,
4466 "Return face attribute KEYWORD of face SYMBOL.\n\
4467 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
4468 face attribute name, signal an error.\n\
4469 If the optional argument FRAME is given, report on face FACE in that\n\
4470 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
4471 frames). If FRAME is omitted or nil, use the selected frame.")
4472 (symbol
, keyword
, frame
)
4473 Lisp_Object symbol
, keyword
, frame
;
4475 Lisp_Object lface
, value
= Qnil
;
4477 CHECK_SYMBOL (symbol
, 0);
4478 CHECK_SYMBOL (keyword
, 1);
4481 lface
= lface_from_face_name (NULL
, symbol
, 1);
4485 frame
= selected_frame
;
4486 CHECK_LIVE_FRAME (frame
, 2);
4487 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4490 if (EQ (keyword
, QCfamily
))
4491 value
= LFACE_FAMILY (lface
);
4492 else if (EQ (keyword
, QCheight
))
4493 value
= LFACE_HEIGHT (lface
);
4494 else if (EQ (keyword
, QCweight
))
4495 value
= LFACE_WEIGHT (lface
);
4496 else if (EQ (keyword
, QCslant
))
4497 value
= LFACE_SLANT (lface
);
4498 else if (EQ (keyword
, QCunderline
))
4499 value
= LFACE_UNDERLINE (lface
);
4500 else if (EQ (keyword
, QCoverline
))
4501 value
= LFACE_OVERLINE (lface
);
4502 else if (EQ (keyword
, QCstrike_through
))
4503 value
= LFACE_STRIKE_THROUGH (lface
);
4504 else if (EQ (keyword
, QCbox
))
4505 value
= LFACE_BOX (lface
);
4506 else if (EQ (keyword
, QCinverse_video
)
4507 || EQ (keyword
, QCreverse_video
))
4508 value
= LFACE_INVERSE (lface
);
4509 else if (EQ (keyword
, QCforeground
))
4510 value
= LFACE_FOREGROUND (lface
);
4511 else if (EQ (keyword
, QCbackground
))
4512 value
= LFACE_BACKGROUND (lface
);
4513 else if (EQ (keyword
, QCstipple
))
4514 value
= LFACE_STIPPLE (lface
);
4515 else if (EQ (keyword
, QCwidth
))
4516 value
= LFACE_SWIDTH (lface
);
4517 else if (EQ (keyword
, QCinherit
))
4518 value
= LFACE_INHERIT (lface
);
4519 else if (EQ (keyword
, QCfont
))
4520 value
= LFACE_FONT (lface
);
4522 signal_error ("Invalid face attribute name", keyword
);
4528 DEFUN ("internal-lisp-face-attribute-values",
4529 Finternal_lisp_face_attribute_values
,
4530 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4531 "Return a list of valid discrete values for face attribute ATTR.\n\
4532 Value is nil if ATTR doesn't have a discrete set of valid values.")
4536 Lisp_Object result
= Qnil
;
4538 CHECK_SYMBOL (attr
, 0);
4540 if (EQ (attr
, QCweight
)
4541 || EQ (attr
, QCslant
)
4542 || EQ (attr
, QCwidth
))
4544 /* Extract permissible symbols from tables. */
4545 struct table_entry
*table
;
4548 if (EQ (attr
, QCweight
))
4549 table
= weight_table
, dim
= DIM (weight_table
);
4550 else if (EQ (attr
, QCslant
))
4551 table
= slant_table
, dim
= DIM (slant_table
);
4553 table
= swidth_table
, dim
= DIM (swidth_table
);
4555 for (i
= 0; i
< dim
; ++i
)
4557 Lisp_Object symbol
= *table
[i
].symbol
;
4558 Lisp_Object tail
= result
;
4561 && !EQ (XCAR (tail
), symbol
))
4565 result
= Fcons (symbol
, result
);
4568 else if (EQ (attr
, QCunderline
))
4569 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4570 else if (EQ (attr
, QCoverline
))
4571 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4572 else if (EQ (attr
, QCstrike_through
))
4573 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4574 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4575 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4581 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4582 Sinternal_merge_in_global_face
, 2, 2, 0,
4583 "Add attributes from frame-default definition of FACE to FACE on FRAME.\n\
4584 Default face attributes override any local face attributes.")
4586 Lisp_Object face
, frame
;
4589 Lisp_Object global_lface
, local_lface
, *gvec
, *lvec
;
4591 CHECK_LIVE_FRAME (frame
, 1);
4592 global_lface
= lface_from_face_name (NULL
, face
, 1);
4593 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4594 if (NILP (local_lface
))
4595 local_lface
= Finternal_make_lisp_face (face
, frame
);
4597 /* Make every specified global attribute override the local one.
4598 BEWARE!! This is only used from `face-set-after-frame-default' where
4599 the local frame is defined from default specs in `face-defface-spec'
4600 and those should be overridden by global settings. Hence the strange
4601 "global before local" priority. */
4602 lvec
= XVECTOR (local_lface
)->contents
;
4603 gvec
= XVECTOR (global_lface
)->contents
;
4604 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4605 if (! UNSPECIFIEDP (gvec
[i
]))
4612 /* The following function is implemented for compatibility with 20.2.
4613 The function is used in x-resolve-fonts when it is asked to
4614 return fonts with the same size as the font of a face. This is
4615 done in fontset.el. */
4617 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4618 "Return the font name of face FACE, or nil if it is unspecified.\n\
4619 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4620 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4621 The font default for a face is either nil, or a list\n\
4622 of the form (bold), (italic) or (bold italic).\n\
4623 If FRAME is omitted or nil, use the selected frame.")
4625 Lisp_Object face
, frame
;
4629 Lisp_Object result
= Qnil
;
4630 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4632 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4633 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4634 result
= Fcons (Qbold
, result
);
4636 if (!NILP (LFACE_SLANT (lface
))
4637 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4638 result
= Fcons (Qitalic
, result
);
4644 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4645 int face_id
= lookup_named_face (f
, face
, 0);
4646 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4647 return face
? build_string (face
->font_name
) : Qnil
;
4652 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4653 all attributes are `equal'. Tries to be fast because this function
4654 is called quite often. */
4657 lface_equal_p (v1
, v2
)
4658 Lisp_Object
*v1
, *v2
;
4662 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4664 Lisp_Object a
= v1
[i
];
4665 Lisp_Object b
= v2
[i
];
4667 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4668 and the other is specified. */
4669 equal_p
= XTYPE (a
) == XTYPE (b
);
4678 equal_p
= ((STRING_BYTES (XSTRING (a
))
4679 == STRING_BYTES (XSTRING (b
)))
4680 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4681 STRING_BYTES (XSTRING (a
))) == 0);
4690 equal_p
= !NILP (Fequal (a
, b
));
4700 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4701 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4702 "True if FACE1 and FACE2 are equal.\n\
4703 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4704 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4705 If FRAME is omitted or nil, use the selected frame.")
4706 (face1
, face2
, frame
)
4707 Lisp_Object face1
, face2
, frame
;
4711 Lisp_Object lface1
, lface2
;
4716 /* Don't use check_x_frame here because this function is called
4717 before X frames exist. At that time, if FRAME is nil,
4718 selected_frame will be used which is the frame dumped with
4719 Emacs. That frame is not an X frame. */
4720 f
= frame_or_selected_frame (frame
, 2);
4722 lface1
= lface_from_face_name (NULL
, face1
, 1);
4723 lface2
= lface_from_face_name (NULL
, face2
, 1);
4724 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4725 XVECTOR (lface2
)->contents
);
4726 return equal_p
? Qt
: Qnil
;
4730 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4731 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4732 "True if FACE has no attribute specified.\n\
4733 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4734 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4735 If FRAME is omitted or nil, use the selected frame.")
4737 Lisp_Object face
, frame
;
4744 frame
= selected_frame
;
4745 CHECK_LIVE_FRAME (frame
, 0);
4749 lface
= lface_from_face_name (NULL
, face
, 1);
4751 lface
= lface_from_face_name (f
, face
, 1);
4753 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4754 if (!UNSPECIFIEDP (AREF (lface
, i
)))
4757 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4761 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4763 "Return an alist of frame-local faces defined on FRAME.\n\
4764 For internal use only.")
4768 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4769 return f
->face_alist
;
4773 /* Return a hash code for Lisp string STRING with case ignored. Used
4774 below in computing a hash value for a Lisp face. */
4776 static INLINE
unsigned
4777 hash_string_case_insensitive (string
)
4782 xassert (STRINGP (string
));
4783 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4784 hash
= (hash
<< 1) ^ tolower (*s
);
4789 /* Return a hash code for face attribute vector V. */
4791 static INLINE
unsigned
4795 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4796 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4797 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4798 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
4799 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
4800 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
4801 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4805 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4806 considering charsets/registries). They do if they specify the same
4807 family, point size, weight, width, slant, and fontset. Both LFACE1
4808 and LFACE2 must be fully-specified. */
4811 lface_same_font_attributes_p (lface1
, lface2
)
4812 Lisp_Object
*lface1
, *lface2
;
4814 xassert (lface_fully_specified_p (lface1
)
4815 && lface_fully_specified_p (lface2
));
4816 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4817 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4818 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4819 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4820 && EQ (lface1
[LFACE_AVGWIDTH_INDEX
], lface2
[LFACE_AVGWIDTH_INDEX
])
4821 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4822 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4823 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4824 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
4825 && STRINGP (lface2
[LFACE_FONT_INDEX
])
4826 && xstricmp (XSTRING (lface1
[LFACE_FONT_INDEX
])->data
,
4827 XSTRING (lface2
[LFACE_FONT_INDEX
])->data
))));
4832 /***********************************************************************
4834 ***********************************************************************/
4836 /* Allocate and return a new realized face for Lisp face attribute
4839 static struct face
*
4840 make_realized_face (attr
)
4843 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4844 bzero (face
, sizeof *face
);
4845 face
->ascii_face
= face
;
4846 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4851 /* Free realized face FACE, including its X resources. FACE may
4855 free_realized_face (f
, face
)
4861 #ifdef HAVE_WINDOW_SYSTEM
4862 if (FRAME_WINDOW_P (f
))
4864 /* Free fontset of FACE if it is ASCII face. */
4865 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4866 free_face_fontset (f
, face
);
4869 x_free_gc (f
, face
->gc
);
4873 free_face_colors (f
, face
);
4874 x_destroy_bitmap (f
, face
->stipple
);
4876 #endif /* HAVE_WINDOW_SYSTEM */
4883 /* Prepare face FACE for subsequent display on frame F. This
4884 allocated GCs if they haven't been allocated yet or have been freed
4885 by clearing the face cache. */
4888 prepare_face_for_display (f
, face
)
4892 #ifdef HAVE_WINDOW_SYSTEM
4893 xassert (FRAME_WINDOW_P (f
));
4898 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4900 xgcv
.foreground
= face
->foreground
;
4901 xgcv
.background
= face
->background
;
4902 #ifdef HAVE_X_WINDOWS
4903 xgcv
.graphics_exposures
= False
;
4905 /* The font of FACE may be null if we couldn't load it. */
4908 #ifdef HAVE_X_WINDOWS
4909 xgcv
.font
= face
->font
->fid
;
4912 xgcv
.font
= face
->font
;
4915 xgcv
.font
= face
->font
;
4921 #ifdef HAVE_X_WINDOWS
4924 xgcv
.fill_style
= FillOpaqueStippled
;
4925 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4926 mask
|= GCFillStyle
| GCStipple
;
4929 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4932 #endif /* HAVE_WINDOW_SYSTEM */
4936 /***********************************************************************
4938 ***********************************************************************/
4940 /* Return a new face cache for frame F. */
4942 static struct face_cache
*
4946 struct face_cache
*c
;
4949 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4950 bzero (c
, sizeof *c
);
4951 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4952 c
->buckets
= (struct face
**) xmalloc (size
);
4953 bzero (c
->buckets
, size
);
4955 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4961 /* Clear out all graphics contexts for all realized faces, except for
4962 the basic faces. This should be done from time to time just to avoid
4963 keeping too many graphics contexts that are no longer needed. */
4967 struct face_cache
*c
;
4969 if (c
&& FRAME_WINDOW_P (c
->f
))
4971 #ifdef HAVE_WINDOW_SYSTEM
4973 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4975 struct face
*face
= c
->faces_by_id
[i
];
4976 if (face
&& face
->gc
)
4978 x_free_gc (c
->f
, face
->gc
);
4982 #endif /* HAVE_WINDOW_SYSTEM */
4987 /* Free all realized faces in face cache C, including basic faces. C
4988 may be null. If faces are freed, make sure the frame's current
4989 matrix is marked invalid, so that a display caused by an expose
4990 event doesn't try to use faces we destroyed. */
4993 free_realized_faces (c
)
4994 struct face_cache
*c
;
4999 struct frame
*f
= c
->f
;
5001 /* We must block input here because we can't process X events
5002 safely while only some faces are freed, or when the frame's
5003 current matrix still references freed faces. */
5006 for (i
= 0; i
< c
->used
; ++i
)
5008 free_realized_face (f
, c
->faces_by_id
[i
]);
5009 c
->faces_by_id
[i
] = NULL
;
5013 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
5014 bzero (c
->buckets
, size
);
5016 /* Must do a thorough redisplay the next time. Mark current
5017 matrices as invalid because they will reference faces freed
5018 above. This function is also called when a frame is
5019 destroyed. In this case, the root window of F is nil. */
5020 if (WINDOWP (f
->root_window
))
5022 clear_current_matrices (f
);
5023 ++windows_or_buffers_changed
;
5031 /* Free all faces realized for multibyte characters on frame F that
5035 free_realized_multibyte_face (f
, fontset
)
5039 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5043 /* We must block input here because we can't process X events safely
5044 while only some faces are freed, or when the frame's current
5045 matrix still references freed faces. */
5048 for (i
= 0; i
< cache
->used
; i
++)
5050 face
= cache
->faces_by_id
[i
];
5052 && face
!= face
->ascii_face
5053 && face
->fontset
== fontset
)
5055 uncache_face (cache
, face
);
5056 free_realized_face (f
, face
);
5060 /* Must do a thorough redisplay the next time. Mark current
5061 matrices as invalid because they will reference faces freed
5062 above. This function is also called when a frame is destroyed.
5063 In this case, the root window of F is nil. */
5064 if (WINDOWP (f
->root_window
))
5066 clear_current_matrices (f
);
5067 ++windows_or_buffers_changed
;
5074 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
5075 This is done after attributes of a named face have been changed,
5076 because we can't tell which realized faces depend on that face. */
5079 free_all_realized_faces (frame
)
5085 FOR_EACH_FRAME (rest
, frame
)
5086 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5089 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5093 /* Free face cache C and faces in it, including their X resources. */
5097 struct face_cache
*c
;
5101 free_realized_faces (c
);
5103 xfree (c
->faces_by_id
);
5109 /* Cache realized face FACE in face cache C. HASH is the hash value
5110 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5111 collision list of the face hash table of C. This is done because
5112 otherwise lookup_face would find FACE for every character, even if
5113 faces with the same attributes but for specific characters exist. */
5116 cache_face (c
, face
, hash
)
5117 struct face_cache
*c
;
5121 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5125 if (face
->fontset
>= 0)
5127 struct face
*last
= c
->buckets
[i
];
5138 c
->buckets
[i
] = face
;
5139 face
->prev
= face
->next
= NULL
;
5145 face
->next
= c
->buckets
[i
];
5147 face
->next
->prev
= face
;
5148 c
->buckets
[i
] = face
;
5151 /* Find a free slot in C->faces_by_id and use the index of the free
5152 slot as FACE->id. */
5153 for (i
= 0; i
< c
->used
; ++i
)
5154 if (c
->faces_by_id
[i
] == NULL
)
5158 /* Maybe enlarge C->faces_by_id. */
5159 if (i
== c
->used
&& c
->used
== c
->size
)
5161 int new_size
= 2 * c
->size
;
5162 int sz
= new_size
* sizeof *c
->faces_by_id
;
5163 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5168 /* Check that FACE got a unique id. */
5173 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5174 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5180 #endif /* GLYPH_DEBUG */
5182 c
->faces_by_id
[i
] = face
;
5188 /* Remove face FACE from cache C. */
5191 uncache_face (c
, face
)
5192 struct face_cache
*c
;
5195 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5198 face
->prev
->next
= face
->next
;
5200 c
->buckets
[i
] = face
->next
;
5203 face
->next
->prev
= face
->prev
;
5205 c
->faces_by_id
[face
->id
] = NULL
;
5206 if (face
->id
== c
->used
)
5211 /* Look up a realized face with face attributes ATTR in the face cache
5212 of frame F. The face will be used to display character C. Value
5213 is the ID of the face found. If no suitable face is found, realize
5214 a new one. In that case, if C is a multibyte character, BASE_FACE
5215 is a face that has the same attributes. */
5218 lookup_face (f
, attr
, c
, base_face
)
5222 struct face
*base_face
;
5224 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5229 xassert (cache
!= NULL
);
5230 check_lface_attrs (attr
);
5232 /* Look up ATTR in the face cache. */
5233 hash
= lface_hash (attr
);
5234 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5236 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5237 if (face
->hash
== hash
5238 && (!FRAME_WINDOW_P (f
)
5239 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5240 && lface_equal_p (face
->lface
, attr
))
5243 /* If not found, realize a new face. */
5245 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5248 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5250 /* When this function is called from face_for_char (in this case, C is
5251 a multibyte character), a fontset of a face returned by
5252 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5253 C) is not sutisfied. The fontset is set for this face by
5254 face_for_char later. */
5256 if (FRAME_WINDOW_P (f
))
5257 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5259 #endif /* GLYPH_DEBUG */
5265 /* Return the face id of the realized face for named face SYMBOL on
5266 frame F suitable for displaying character C. Value is -1 if the
5267 face couldn't be determined, which might happen if the default face
5268 isn't realized and cannot be realized. */
5271 lookup_named_face (f
, symbol
, c
)
5276 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5277 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5278 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5280 if (default_face
== NULL
)
5282 if (!realize_basic_faces (f
))
5284 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5287 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5288 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5289 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5290 return lookup_face (f
, attrs
, c
, NULL
);
5294 /* Return the ID of the realized ASCII face of Lisp face with ID
5295 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5298 ascii_face_of_lisp_face (f
, lface_id
)
5304 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5306 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5307 face_id
= lookup_named_face (f
, face_name
, 0);
5316 /* Return a face for charset ASCII that is like the face with id
5317 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5318 STEPS < 0 means larger. Value is the id of the face. */
5321 smaller_face (f
, face_id
, steps
)
5325 #ifdef HAVE_WINDOW_SYSTEM
5327 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5328 int pt
, last_pt
, last_height
;
5331 struct face
*new_face
;
5333 /* If not called for an X frame, just return the original face. */
5334 if (FRAME_TERMCAP_P (f
))
5337 /* Try in increments of 1/2 pt. */
5338 delta
= steps
< 0 ? 5 : -5;
5339 steps
= abs (steps
);
5341 face
= FACE_FROM_ID (f
, face_id
);
5342 bcopy (face
->lface
, attrs
, sizeof attrs
);
5343 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5344 new_face_id
= face_id
;
5345 last_height
= FONT_HEIGHT (face
->font
);
5349 /* Give up if we cannot find a font within 10pt. */
5350 && abs (last_pt
- pt
) < 100)
5352 /* Look up a face for a slightly smaller/larger font. */
5354 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5355 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5356 new_face
= FACE_FROM_ID (f
, new_face_id
);
5358 /* If height changes, count that as one step. */
5359 if ((delta
< 0 && FONT_HEIGHT (new_face
->font
) < last_height
)
5360 || (delta
> 0 && FONT_HEIGHT (new_face
->font
) > last_height
))
5363 last_height
= FONT_HEIGHT (new_face
->font
);
5370 #else /* not HAVE_WINDOW_SYSTEM */
5374 #endif /* not HAVE_WINDOW_SYSTEM */
5378 /* Return a face for charset ASCII that is like the face with id
5379 FACE_ID on frame F, but has height HEIGHT. */
5382 face_with_height (f
, face_id
, height
)
5387 #ifdef HAVE_WINDOW_SYSTEM
5389 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5391 if (FRAME_TERMCAP_P (f
)
5395 face
= FACE_FROM_ID (f
, face_id
);
5396 bcopy (face
->lface
, attrs
, sizeof attrs
);
5397 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5398 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5399 #endif /* HAVE_WINDOW_SYSTEM */
5405 /* Return the face id of the realized face for named face SYMBOL on
5406 frame F suitable for displaying character C, and use attributes of
5407 the face FACE_ID for attributes that aren't completely specified by
5408 SYMBOL. This is like lookup_named_face, except that the default
5409 attributes come from FACE_ID, not from the default face. FACE_ID
5410 is assumed to be already realized. */
5413 lookup_derived_face (f
, symbol
, c
, face_id
)
5419 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5420 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5421 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5426 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5427 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5428 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5429 return lookup_face (f
, attrs
, c
, default_face
);
5434 /***********************************************************************
5436 ***********************************************************************/
5438 DEFUN ("internal-set-font-selection-order",
5439 Finternal_set_font_selection_order
,
5440 Sinternal_set_font_selection_order
, 1, 1, 0,
5441 "Set font selection order for face font selection to ORDER.\n\
5442 ORDER must be a list of length 4 containing the symbols `:width',\n\
5443 `:height', `:weight', and `:slant'. Face attributes appearing\n\
5444 first in ORDER are matched first, e.g. if `:height' appears before\n\
5445 `:weight' in ORDER, font selection first tries to find a font with\n\
5446 a suitable height, and then tries to match the font weight.\n\
5453 int indices
[DIM (font_sort_order
)];
5455 CHECK_LIST (order
, 0);
5456 bzero (indices
, sizeof indices
);
5460 CONSP (list
) && i
< DIM (indices
);
5461 list
= XCDR (list
), ++i
)
5463 Lisp_Object attr
= XCAR (list
);
5466 if (EQ (attr
, QCwidth
))
5468 else if (EQ (attr
, QCheight
))
5469 xlfd
= XLFD_POINT_SIZE
;
5470 else if (EQ (attr
, QCweight
))
5472 else if (EQ (attr
, QCslant
))
5477 if (indices
[i
] != 0)
5482 if (!NILP (list
) || i
!= DIM (indices
))
5483 signal_error ("Invalid font sort order", order
);
5484 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5485 if (indices
[i
] == 0)
5486 signal_error ("Invalid font sort order", order
);
5488 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5490 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5491 free_all_realized_faces (Qnil
);
5498 DEFUN ("internal-set-alternative-font-family-alist",
5499 Finternal_set_alternative_font_family_alist
,
5500 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5501 "Define alternative font families to try in face font selection.\n\
5502 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5503 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
5504 be found. Value is ALIST.")
5508 CHECK_LIST (alist
, 0);
5509 Vface_alternative_font_family_alist
= alist
;
5510 free_all_realized_faces (Qnil
);
5515 DEFUN ("internal-set-alternative-font-registry-alist",
5516 Finternal_set_alternative_font_registry_alist
,
5517 Sinternal_set_alternative_font_registry_alist
, 1, 1, 0,
5518 "Define alternative font registries to try in face font selection.\n\
5519 ALIST is an alist of (REGISTRY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5520 Each ALTERNATIVE is tried in order if no fonts of font registry REGISTRY can\n\
5521 be found. Value is ALIST.")
5525 CHECK_LIST (alist
, 0);
5526 Vface_alternative_font_registry_alist
= alist
;
5527 free_all_realized_faces (Qnil
);
5532 #ifdef HAVE_WINDOW_SYSTEM
5534 /* Value is non-zero if FONT is the name of a scalable font. The
5535 X11R6 XLFD spec says that point size, pixel size, and average width
5536 are zero for scalable fonts. Intlfonts contain at least one
5537 scalable font ("*-muleindian-1") for which this isn't true, so we
5538 just test average width. */
5541 font_scalable_p (font
)
5542 struct font_name
*font
;
5544 char *s
= font
->fields
[XLFD_AVGWIDTH
];
5545 return (*s
== '0' && *(s
+ 1) == '\0')
5547 /* Windows implementation of XLFD is slightly broken for backward
5548 compatibility with previous broken versions, so test for
5549 wildcards as well as 0. */
5556 /* Ignore the difference of font point size less than this value. */
5558 #define FONT_POINT_SIZE_QUANTUM 5
5560 /* Value is non-zero if FONT1 is a better match for font attributes
5561 VALUES than FONT2. VALUES is an array of face attribute values in
5562 font sort order. COMPARE_PT_P zero means don't compare point
5563 sizes. AVGWIDTH, if not zero, is a specified font average width
5567 better_font_p (values
, font1
, font2
, compare_pt_p
, avgwidth
)
5569 struct font_name
*font1
, *font2
;
5570 int compare_pt_p
, avgwidth
;
5574 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5576 int xlfd_idx
= font_sort_order
[i
];
5578 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
5580 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
5581 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
5583 if (xlfd_idx
== XLFD_POINT_SIZE
5584 && abs (delta1
- delta2
) < FONT_POINT_SIZE_QUANTUM
)
5586 if (delta1
> delta2
)
5588 else if (delta1
< delta2
)
5592 /* The difference may be equal because, e.g., the face
5593 specifies `italic' but we have only `regular' and
5594 `oblique'. Prefer `oblique' in this case. */
5595 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5596 && font1
->numeric
[xlfd_idx
] > values
[i
]
5597 && font2
->numeric
[xlfd_idx
] < values
[i
])
5605 int delta1
= abs (avgwidth
- font1
->numeric
[XLFD_AVGWIDTH
]);
5606 int delta2
= abs (avgwidth
- font2
->numeric
[XLFD_AVGWIDTH
]);
5607 if (delta1
> delta2
)
5609 else if (delta1
< delta2
)
5613 return font1
->registry_priority
< font2
->registry_priority
;
5617 /* Value is non-zero if FONT is an exact match for face attributes in
5618 SPECIFIED. SPECIFIED is an array of face attribute values in font
5619 sort order. AVGWIDTH, if non-zero, is an average width to compare
5623 exact_face_match_p (specified
, font
, avgwidth
)
5625 struct font_name
*font
;
5630 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5631 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5634 return (i
== DIM (font_sort_order
)
5636 || avgwidth
== font
->numeric
[XLFD_AVGWIDTH
]));
5640 /* Value is the name of a scaled font, generated from scalable font
5641 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5642 Value is allocated from heap. */
5645 build_scalable_font_name (f
, font
, specified_pt
)
5647 struct font_name
*font
;
5650 char point_size
[20], pixel_size
[20];
5652 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5655 /* If scalable font is for a specific resolution, compute
5656 the point size we must specify from the resolution of
5657 the display and the specified resolution of the font. */
5658 if (font
->numeric
[XLFD_RESY
] != 0)
5660 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5661 pixel_value
= font
->numeric
[XLFD_RESY
] / (PT_PER_INCH
* 10.0) * pt
;
5666 pixel_value
= resy
/ (PT_PER_INCH
* 10.0) * pt
;
5669 /* Set point size of the font. */
5670 sprintf (point_size
, "%d", (int) pt
);
5671 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5672 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5674 /* Set pixel size. */
5675 sprintf (pixel_size
, "%d", pixel_value
);
5676 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5677 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5679 /* If font doesn't specify its resolution, use the
5680 resolution of the display. */
5681 if (font
->numeric
[XLFD_RESY
] == 0)
5684 sprintf (buffer
, "%d", (int) resy
);
5685 font
->fields
[XLFD_RESY
] = buffer
;
5686 font
->numeric
[XLFD_RESY
] = resy
;
5689 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5692 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5693 sprintf (buffer
, "%d", resx
);
5694 font
->fields
[XLFD_RESX
] = buffer
;
5695 font
->numeric
[XLFD_RESX
] = resx
;
5698 return build_font_name (font
);
5702 /* Value is non-zero if we are allowed to use scalable font FONT. We
5703 can't run a Lisp function here since this function may be called
5704 with input blocked. */
5707 may_use_scalable_font_p (font
)
5710 if (EQ (Vscalable_fonts_allowed
, Qt
))
5712 else if (CONSP (Vscalable_fonts_allowed
))
5714 Lisp_Object tail
, regexp
;
5716 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5718 regexp
= XCAR (tail
);
5719 if (STRINGP (regexp
)
5720 && fast_c_string_match_ignore_case (regexp
, font
) >= 0)
5730 /* Return the name of the best matching font for face attributes ATTRS
5731 in the array of font_name structures FONTS which contains NFONTS
5732 elements. WIDTH_RATIO is a factor with which to multiply average
5733 widths if ATTRS specifies such a width.
5735 Value is a font name which is allocated from the heap. FONTS is
5736 freed by this function. */
5739 best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
)
5742 struct font_name
*fonts
;
5747 struct font_name
*best
;
5750 int exact_p
, avgwidth
;
5755 /* Make specified font attributes available in `specified',
5756 indexed by sort order. */
5757 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5759 int xlfd_idx
= font_sort_order
[i
];
5761 if (xlfd_idx
== XLFD_SWIDTH
)
5762 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5763 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5764 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5765 else if (xlfd_idx
== XLFD_WEIGHT
)
5766 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5767 else if (xlfd_idx
== XLFD_SLANT
)
5768 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5773 avgwidth
= (UNSPECIFIEDP (attrs
[LFACE_AVGWIDTH_INDEX
])
5775 : XFASTINT (attrs
[LFACE_AVGWIDTH_INDEX
]) * width_ratio
);
5779 /* Start with the first non-scalable font in the list. */
5780 for (i
= 0; i
< nfonts
; ++i
)
5781 if (!font_scalable_p (fonts
+ i
))
5784 /* Find the best match among the non-scalable fonts. */
5789 for (i
= 1; i
< nfonts
; ++i
)
5790 if (!font_scalable_p (fonts
+ i
)
5791 && better_font_p (specified
, fonts
+ i
, best
, 1, avgwidth
))
5795 exact_p
= exact_face_match_p (specified
, best
, avgwidth
);
5804 /* Unless we found an exact match among non-scalable fonts, see if
5805 we can find a better match among scalable fonts. */
5808 /* A scalable font is better if
5810 1. its weight, slant, swidth attributes are better, or.
5812 2. the best non-scalable font doesn't have the required
5813 point size, and the scalable fonts weight, slant, swidth
5816 int non_scalable_has_exact_height_p
;
5818 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5819 non_scalable_has_exact_height_p
= 1;
5821 non_scalable_has_exact_height_p
= 0;
5823 for (i
= 0; i
< nfonts
; ++i
)
5824 if (font_scalable_p (fonts
+ i
))
5827 || better_font_p (specified
, fonts
+ i
, best
, 0, 0)
5828 || (!non_scalable_has_exact_height_p
5829 && !better_font_p (specified
, best
, fonts
+ i
, 0, 0)))
5834 if (font_scalable_p (best
))
5835 font_name
= build_scalable_font_name (f
, best
, pt
);
5837 font_name
= build_font_name (best
);
5839 /* Free font_name structures. */
5840 free_font_names (fonts
, nfonts
);
5846 /* Get a list of matching fonts on frame F, considering alterntive
5847 font families from Vface_alternative_font_registry_alist.
5849 FAMILY is the font family whose alternatives are considered.
5851 REGISTRY, if a string, specifies a font registry and encoding to
5852 match. A value of nil means include fonts of any registry and
5855 Return in *FONTS a pointer to a vector of font_name structures for
5856 the fonts matched. Value is the number of fonts found. */
5859 try_alternative_families (f
, family
, registry
, fonts
)
5861 Lisp_Object family
, registry
;
5862 struct font_name
**fonts
;
5867 /* Try alternative font families. */
5868 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
5871 for (alter
= XCDR (alter
);
5872 CONSP (alter
) && nfonts
== 0;
5873 alter
= XCDR (alter
))
5875 if (STRINGP (XCAR (alter
)))
5876 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
5884 /* Get a list of matching fonts on frame F.
5886 FAMILY, if a string, specifies a font family. If nil, use
5887 the family specified in Lisp face attributes ATTRS instead.
5889 REGISTRY, if a string, specifies a font registry and encoding to
5890 match. A value of nil means include fonts of any registry and
5893 Return in *FONTS a pointer to a vector of font_name structures for
5894 the fonts matched. Value is the number of fonts found. */
5897 try_font_list (f
, attrs
, family
, registry
, fonts
)
5900 Lisp_Object family
, registry
;
5901 struct font_name
**fonts
;
5905 if (STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
5907 Lisp_Object face_family
;
5908 face_family
= attrs
[LFACE_FAMILY_INDEX
];
5909 nfonts
= font_list (f
, Qnil
, face_family
, registry
, fonts
);
5911 nfonts
= try_alternative_families (f
, face_family
, registry
, fonts
);
5916 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
5917 if (nfonts
== 0 && !NILP (family
))
5919 nfonts
= try_alternative_families (f
, family
, registry
, fonts
);
5921 /* Try font family of the default face or "fixed". */
5924 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5926 family
= default_face
->lface
[LFACE_FAMILY_INDEX
];
5928 family
= build_string ("fixed");
5929 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
5932 /* Try any family with the given registry. */
5934 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
5942 /* Return the fontset id of the base fontset name or alias name given
5943 by the fontset attribute of ATTRS. Value is -1 if the fontset
5944 attribute of ATTRS doesn't name a fontset. */
5947 face_fontset (attrs
)
5952 name
= attrs
[LFACE_FONT_INDEX
];
5953 if (!STRINGP (name
))
5955 return fs_query_fontset (name
, 0);
5959 /* Choose a name of font to use on frame F to display character C with
5960 Lisp face attributes specified by ATTRS. The font name is
5961 determined by the font-related attributes in ATTRS and the name
5962 pattern for C in FONTSET. Value is the font name which is
5963 allocated from the heap and must be freed by the caller, or NULL if
5964 we can get no information about the font name of C. It is assured
5965 that we always get some information for a single byte
5969 choose_face_font (f
, attrs
, fontset
, c
)
5974 Lisp_Object pattern
;
5975 char *font_name
= NULL
;
5976 struct font_name
*fonts
;
5977 int nfonts
, width_ratio
;
5979 /* Get (foundry and) family name and registry (and encoding) name of
5981 pattern
= fontset_font_pattern (f
, fontset
, c
);
5984 xassert (!SINGLE_BYTE_CHAR_P (c
));
5988 /* If what we got is a name pattern, return it. */
5989 if (STRINGP (pattern
))
5990 return xstrdup (XSTRING (pattern
)->data
);
5992 /* Get a list of fonts matching that pattern and choose the
5993 best match for the specified face attributes from it. */
5994 nfonts
= try_font_list (f
, attrs
, XCAR (pattern
), XCDR (pattern
), &fonts
);
5995 width_ratio
= (SINGLE_BYTE_CHAR_P (c
)
5997 : CHARSET_WIDTH (CHAR_CHARSET (c
)));
5998 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
, width_ratio
);
6002 #endif /* HAVE_WINDOW_SYSTEM */
6006 /***********************************************************************
6008 ***********************************************************************/
6010 /* Realize basic faces on frame F. Value is zero if frame parameters
6011 of F don't contain enough information needed to realize the default
6015 realize_basic_faces (f
)
6019 int count
= BINDING_STACK_SIZE ();
6021 /* Block input there so that we won't be surprised by an X expose
6022 event, for instance without having the faces set up. */
6024 specbind (Qscalable_fonts_allowed
, Qt
);
6026 if (realize_default_face (f
))
6028 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
6029 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
6030 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
6031 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
6032 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
6033 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
6034 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
6035 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
6036 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
6038 /* Reflect changes in the `menu' face in menu bars. */
6039 if (menu_face_change_count
)
6041 --menu_face_change_count
;
6042 #ifdef USE_X_TOOLKIT
6043 x_update_menu_appearance (f
);
6050 unbind_to (count
, Qnil
);
6056 /* Realize the default face on frame F. If the face is not fully
6057 specified, make it fully-specified. Attributes of the default face
6058 that are not explicitly specified are taken from frame parameters. */
6061 realize_default_face (f
)
6064 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6066 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6067 Lisp_Object frame_font
;
6070 /* If the `default' face is not yet known, create it. */
6071 lface
= lface_from_face_name (f
, Qdefault
, 0);
6075 XSETFRAME (frame
, f
);
6076 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
6079 #ifdef HAVE_WINDOW_SYSTEM
6080 if (FRAME_WINDOW_P (f
))
6082 /* Set frame_font to the value of the `font' frame parameter. */
6083 frame_font
= Fassq (Qfont
, f
->param_alist
);
6084 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
6085 frame_font
= XCDR (frame_font
);
6086 set_lface_from_font_name (f
, lface
, frame_font
, 1, 1);
6088 #endif /* HAVE_WINDOW_SYSTEM */
6090 if (!FRAME_WINDOW_P (f
))
6092 LFACE_FAMILY (lface
) = build_string ("default");
6093 LFACE_SWIDTH (lface
) = Qnormal
;
6094 LFACE_HEIGHT (lface
) = make_number (1);
6095 LFACE_WEIGHT (lface
) = Qnormal
;
6096 LFACE_SLANT (lface
) = Qnormal
;
6097 LFACE_AVGWIDTH (lface
) = Qunspecified
;
6100 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
6101 LFACE_UNDERLINE (lface
) = Qnil
;
6103 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
6104 LFACE_OVERLINE (lface
) = Qnil
;
6106 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
6107 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
6109 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
6110 LFACE_BOX (lface
) = Qnil
;
6112 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
6113 LFACE_INVERSE (lface
) = Qnil
;
6115 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
6117 /* This function is called so early that colors are not yet
6118 set in the frame parameter list. */
6119 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
6121 if (CONSP (color
) && STRINGP (XCDR (color
)))
6122 LFACE_FOREGROUND (lface
) = XCDR (color
);
6123 else if (FRAME_WINDOW_P (f
))
6125 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6126 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
6131 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
6133 /* This function is called so early that colors are not yet
6134 set in the frame parameter list. */
6135 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
6136 if (CONSP (color
) && STRINGP (XCDR (color
)))
6137 LFACE_BACKGROUND (lface
) = XCDR (color
);
6138 else if (FRAME_WINDOW_P (f
))
6140 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
6141 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
6146 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
6147 LFACE_STIPPLE (lface
) = Qnil
;
6149 /* Realize the face; it must be fully-specified now. */
6150 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
6151 check_lface (lface
);
6152 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
6153 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
6158 /* Realize basic faces other than the default face in face cache C.
6159 SYMBOL is the face name, ID is the face id the realized face must
6160 have. The default face must have been realized already. */
6163 realize_named_face (f
, symbol
, id
)
6168 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6169 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6170 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6171 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6172 struct face
*new_face
;
6174 /* The default face must exist and be fully specified. */
6175 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6176 check_lface_attrs (attrs
);
6177 xassert (lface_fully_specified_p (attrs
));
6179 /* If SYMBOL isn't know as a face, create it. */
6183 XSETFRAME (frame
, f
);
6184 lface
= Finternal_make_lisp_face (symbol
, frame
);
6187 /* Merge SYMBOL's face with the default face. */
6188 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6189 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
6191 /* Realize the face. */
6192 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6196 /* Realize the fully-specified face with attributes ATTRS in face
6197 cache CACHE for character C. If C is a multibyte character,
6198 BASE_FACE is a face that has the same attributes. Otherwise,
6199 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6200 ID of face to remove before caching the new face. Value is a
6201 pointer to the newly created realized face. */
6203 static struct face
*
6204 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6205 struct face_cache
*cache
;
6208 struct face
*base_face
;
6213 /* LFACE must be fully specified. */
6214 xassert (cache
!= NULL
);
6215 check_lface_attrs (attrs
);
6217 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
6219 /* Remove the former face. */
6220 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
6221 uncache_face (cache
, former_face
);
6222 free_realized_face (cache
->f
, former_face
);
6225 if (FRAME_WINDOW_P (cache
->f
))
6226 face
= realize_x_face (cache
, attrs
, c
, base_face
);
6227 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
6228 face
= realize_tty_face (cache
, attrs
, c
);
6232 /* Insert the new face. */
6233 cache_face (cache
, face
, lface_hash (attrs
));
6234 #ifdef HAVE_WINDOW_SYSTEM
6235 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
6236 load_face_font (cache
->f
, face
, c
);
6237 #endif /* HAVE_WINDOW_SYSTEM */
6242 /* Realize the fully-specified face with attributes ATTRS in face
6243 cache CACHE for character C. Do it for X frame CACHE->f. If C is
6244 a multibyte character, BASE_FACE is a face that has the same
6245 attributes. Otherwise, BASE_FACE is ignored. If the new face
6246 doesn't share font with the default face, a fontname is allocated
6247 from the heap and set in `font_name' of the new face, but it is not
6248 yet loaded here. Value is a pointer to the newly created realized
6251 static struct face
*
6252 realize_x_face (cache
, attrs
, c
, base_face
)
6253 struct face_cache
*cache
;
6256 struct face
*base_face
;
6258 #ifdef HAVE_WINDOW_SYSTEM
6259 struct face
*face
, *default_face
;
6261 Lisp_Object stipple
, overline
, strike_through
, box
;
6263 xassert (FRAME_WINDOW_P (cache
->f
));
6264 xassert (SINGLE_BYTE_CHAR_P (c
)
6267 /* Allocate a new realized face. */
6268 face
= make_realized_face (attrs
);
6272 /* If C is a multibyte character, we share all face attirbutes with
6273 BASE_FACE including the realized fontset. But, we must load a
6275 if (!SINGLE_BYTE_CHAR_P (c
))
6277 bcopy (base_face
, face
, sizeof *face
);
6280 /* Don't try to free the colors copied bitwise from BASE_FACE. */
6281 face
->foreground_defaulted_p
= 1;
6282 face
->background_defaulted_p
= 1;
6283 face
->underline_defaulted_p
= 1;
6284 face
->overline_color_defaulted_p
= 1;
6285 face
->strike_through_color_defaulted_p
= 1;
6286 face
->box_color_defaulted_p
= 1;
6288 /* to force realize_face to load font */
6293 /* Now we are realizing a face for ASCII (and unibyte) characters. */
6295 /* Determine the font to use. Most of the time, the font will be
6296 the same as the font of the default face, so try that first. */
6297 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6299 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
6300 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
6302 face
->font
= default_face
->font
;
6303 face
->fontset
= default_face
->fontset
;
6304 face
->font_info_id
= default_face
->font_info_id
;
6305 face
->font_name
= default_face
->font_name
;
6306 face
->ascii_face
= face
;
6308 /* But, as we can't share the fontset, make a new realized
6309 fontset that has the same base fontset as of the default
6312 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
6316 /* If the face attribute ATTRS specifies a fontset, use it as
6317 the base of a new realized fontset. Otherwise, use the same
6318 base fontset as of the default face. The base determines
6319 registry and encoding of a font. It may also determine
6320 foundry and family. The other fields of font name pattern
6321 are constructed from ATTRS. */
6322 int fontset
= face_fontset (attrs
);
6324 if ((fontset
== -1) && default_face
)
6325 fontset
= default_face
->fontset
;
6326 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
6327 face
->font
= NULL
; /* to force realize_face to load font */
6330 /* Load the font if it is specified in ATTRS. This fixes
6331 changing frame font on the Mac. */
6332 if (STRINGP (attrs
[LFACE_FONT_INDEX
]))
6334 struct font_info
*font_info
=
6335 FS_LOAD_FONT (f
, 0, XSTRING (attrs
[LFACE_FONT_INDEX
])->data
, -1);
6337 face
->font
= font_info
->font
;
6342 /* Load colors, and set remaining attributes. */
6344 load_face_colors (f
, face
, attrs
);
6347 box
= attrs
[LFACE_BOX_INDEX
];
6350 /* A simple box of line width 1 drawn in color given by
6352 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
6354 face
->box
= FACE_SIMPLE_BOX
;
6355 face
->box_line_width
= 1;
6357 else if (INTEGERP (box
))
6359 /* Simple box of specified line width in foreground color of the
6361 xassert (XINT (box
) != 0);
6362 face
->box
= FACE_SIMPLE_BOX
;
6363 face
->box_line_width
= XINT (box
);
6364 face
->box_color
= face
->foreground
;
6365 face
->box_color_defaulted_p
= 1;
6367 else if (CONSP (box
))
6369 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
6370 being one of `raised' or `sunken'. */
6371 face
->box
= FACE_SIMPLE_BOX
;
6372 face
->box_color
= face
->foreground
;
6373 face
->box_color_defaulted_p
= 1;
6374 face
->box_line_width
= 1;
6378 Lisp_Object keyword
, value
;
6380 keyword
= XCAR (box
);
6388 if (EQ (keyword
, QCline_width
))
6390 if (INTEGERP (value
) && XINT (value
) != 0)
6391 face
->box_line_width
= XINT (value
);
6393 else if (EQ (keyword
, QCcolor
))
6395 if (STRINGP (value
))
6397 face
->box_color
= load_color (f
, face
, value
,
6399 face
->use_box_color_for_shadows_p
= 1;
6402 else if (EQ (keyword
, QCstyle
))
6404 if (EQ (value
, Qreleased_button
))
6405 face
->box
= FACE_RAISED_BOX
;
6406 else if (EQ (value
, Qpressed_button
))
6407 face
->box
= FACE_SUNKEN_BOX
;
6412 /* Text underline, overline, strike-through. */
6414 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
6416 /* Use default color (same as foreground color). */
6417 face
->underline_p
= 1;
6418 face
->underline_defaulted_p
= 1;
6419 face
->underline_color
= 0;
6421 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
6423 /* Use specified color. */
6424 face
->underline_p
= 1;
6425 face
->underline_defaulted_p
= 0;
6426 face
->underline_color
6427 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
6428 LFACE_UNDERLINE_INDEX
);
6430 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6432 face
->underline_p
= 0;
6433 face
->underline_defaulted_p
= 0;
6434 face
->underline_color
= 0;
6437 overline
= attrs
[LFACE_OVERLINE_INDEX
];
6438 if (STRINGP (overline
))
6440 face
->overline_color
6441 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
6442 LFACE_OVERLINE_INDEX
);
6443 face
->overline_p
= 1;
6445 else if (EQ (overline
, Qt
))
6447 face
->overline_color
= face
->foreground
;
6448 face
->overline_color_defaulted_p
= 1;
6449 face
->overline_p
= 1;
6452 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6453 if (STRINGP (strike_through
))
6455 face
->strike_through_color
6456 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6457 LFACE_STRIKE_THROUGH_INDEX
);
6458 face
->strike_through_p
= 1;
6460 else if (EQ (strike_through
, Qt
))
6462 face
->strike_through_color
= face
->foreground
;
6463 face
->strike_through_color_defaulted_p
= 1;
6464 face
->strike_through_p
= 1;
6467 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6468 if (!NILP (stipple
))
6469 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6471 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
6473 #endif /* HAVE_WINDOW_SYSTEM */
6477 /* Map a specified color of face FACE on frame F to a tty color index.
6478 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6479 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6480 default foreground/background colors. */
6483 map_tty_color (f
, face
, idx
, defaulted
)
6486 enum lface_attribute_index idx
;
6489 Lisp_Object frame
, color
, def
;
6490 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6491 unsigned long default_pixel
, default_other_pixel
, pixel
;
6493 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6497 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6498 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6502 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6503 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6506 XSETFRAME (frame
, f
);
6507 color
= face
->lface
[idx
];
6510 && XSTRING (color
)->size
6511 && CONSP (Vtty_defined_color_alist
)
6512 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6515 /* Associations in tty-defined-color-alist are of the form
6516 (NAME INDEX R G B). We need the INDEX part. */
6517 pixel
= XINT (XCAR (XCDR (def
)));
6520 if (pixel
== default_pixel
&& STRINGP (color
))
6522 pixel
= load_color (f
, face
, color
, idx
);
6524 #if defined (MSDOS) || defined (WINDOWSNT)
6525 /* If the foreground of the default face is the default color,
6526 use the foreground color defined by the frame. */
6528 if (FRAME_MSDOS_P (f
))
6531 if (pixel
== default_pixel
6532 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6535 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6537 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6538 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6541 else if (pixel
== default_other_pixel
)
6544 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6546 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6547 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6553 #endif /* MSDOS or WINDOWSNT */
6557 face
->foreground
= pixel
;
6559 face
->background
= pixel
;
6563 /* Realize the fully-specified face with attributes ATTRS in face
6564 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
6565 pointer to the newly created realized face. */
6567 static struct face
*
6568 realize_tty_face (cache
, attrs
, c
)
6569 struct face_cache
*cache
;
6575 int face_colors_defaulted
= 0;
6576 struct frame
*f
= cache
->f
;
6578 /* Frame must be a termcap frame. */
6579 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6581 /* Allocate a new realized face. */
6582 face
= make_realized_face (attrs
);
6583 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6585 /* Map face attributes to TTY appearances. We map slant to
6586 dimmed text because we want italic text to appear differently
6587 and because dimmed text is probably used infrequently. */
6588 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6589 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6591 if (weight
> XLFD_WEIGHT_MEDIUM
)
6592 face
->tty_bold_p
= 1;
6593 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6594 face
->tty_dim_p
= 1;
6595 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6596 face
->tty_underline_p
= 1;
6597 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6598 face
->tty_reverse_p
= 1;
6600 /* Map color names to color indices. */
6601 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6602 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6604 /* Swap colors if face is inverse-video. If the colors are taken
6605 from the frame colors, they are already inverted, since the
6606 frame-creation function calls x-handle-reverse-video. */
6607 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6609 unsigned long tem
= face
->foreground
;
6610 face
->foreground
= face
->background
;
6611 face
->background
= tem
;
6614 if (tty_suppress_bold_inverse_default_colors_p
6616 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6617 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6618 face
->tty_bold_p
= 0;
6624 DEFUN ("tty-suppress-bold-inverse-default-colors",
6625 Ftty_suppress_bold_inverse_default_colors
,
6626 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6627 "Suppress/allow boldness of faces with inverse default colors.\n\
6628 SUPPRESS non-nil means suppress it.\n\
6629 This affects bold faces on TTYs whose foreground is the default background\n\
6630 color of the display and whose background is the default foreground color.\n\
6631 For such faces, the bold face attribute is ignored if this variable\n\
6634 Lisp_Object suppress
;
6636 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6637 ++face_change_count
;
6643 /***********************************************************************
6645 ***********************************************************************/
6647 /* Return the ID of the face to use to display character CH with face
6648 property PROP on frame F in current_buffer. */
6651 compute_char_face (f
, ch
, prop
)
6658 if (NILP (current_buffer
->enable_multibyte_characters
))
6663 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6664 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
6668 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6669 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6670 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6671 merge_face_vector_with_property (f
, attrs
, prop
);
6672 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
6679 /* Return the face ID associated with buffer position POS for
6680 displaying ASCII characters. Return in *ENDPTR the position at
6681 which a different face is needed, as far as text properties and
6682 overlays are concerned. W is a window displaying current_buffer.
6684 REGION_BEG, REGION_END delimit the region, so it can be
6687 LIMIT is a position not to scan beyond. That is to limit the time
6688 this function can take.
6690 If MOUSE is non-zero, use the character's mouse-face, not its face.
6692 The face returned is suitable for displaying ASCII characters. */
6695 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6696 endptr
, limit
, mouse
)
6699 int region_beg
, region_end
;
6704 struct frame
*f
= XFRAME (w
->frame
);
6705 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6706 Lisp_Object prop
, position
;
6708 Lisp_Object
*overlay_vec
;
6711 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6712 Lisp_Object limit1
, end
;
6713 struct face
*default_face
;
6715 /* W must display the current buffer. We could write this function
6716 to use the frame and buffer of W, but right now it doesn't. */
6717 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6719 XSETFRAME (frame
, f
);
6720 XSETFASTINT (position
, pos
);
6723 if (pos
< region_beg
&& region_beg
< endpos
)
6724 endpos
= region_beg
;
6726 /* Get the `face' or `mouse_face' text property at POS, and
6727 determine the next position at which the property changes. */
6728 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6729 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6730 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6732 endpos
= XINT (end
);
6734 /* Look at properties from overlays. */
6739 /* First try with room for 40 overlays. */
6741 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6742 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6743 &next_overlay
, NULL
, 0);
6745 /* If there are more than 40, make enough space for all, and try
6747 if (noverlays
> len
)
6750 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6751 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6752 &next_overlay
, NULL
, 0);
6755 if (next_overlay
< endpos
)
6756 endpos
= next_overlay
;
6761 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6763 /* Optimize common cases where we can use the default face. */
6766 && !(pos
>= region_beg
&& pos
< region_end
))
6767 return DEFAULT_FACE_ID
;
6769 /* Begin with attributes from the default face. */
6770 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6772 /* Merge in attributes specified via text properties. */
6774 merge_face_vector_with_property (f
, attrs
, prop
);
6776 /* Now merge the overlay data. */
6777 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6778 for (i
= 0; i
< noverlays
; i
++)
6783 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6785 merge_face_vector_with_property (f
, attrs
, prop
);
6787 oend
= OVERLAY_END (overlay_vec
[i
]);
6788 oendpos
= OVERLAY_POSITION (oend
);
6789 if (oendpos
< endpos
)
6793 /* If in the region, merge in the region face. */
6794 if (pos
>= region_beg
&& pos
< region_end
)
6796 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6797 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6799 if (region_end
< endpos
)
6800 endpos
= region_end
;
6805 /* Look up a realized face with the given face attributes,
6806 or realize a new one for ASCII characters. */
6807 return lookup_face (f
, attrs
, 0, NULL
);
6811 /* Compute the face at character position POS in Lisp string STRING on
6812 window W, for ASCII characters.
6814 If STRING is an overlay string, it comes from position BUFPOS in
6815 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6816 not an overlay string. W must display the current buffer.
6817 REGION_BEG and REGION_END give the start and end positions of the
6818 region; both are -1 if no region is visible.
6820 BASE_FACE_ID is the id of a face to merge with. For strings coming
6821 from overlays or the `display' property it is the face at BUFPOS.
6823 If MOUSE_P is non-zero, use the character's mouse-face, not its face.
6825 Set *ENDPTR to the next position where to check for faces in
6826 STRING; -1 if the face is constant from POS to the end of the
6829 Value is the id of the face to use. The face returned is suitable
6830 for displaying ASCII characters. */
6833 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6834 region_end
, endptr
, base_face_id
, mouse_p
)
6838 int region_beg
, region_end
;
6840 enum face_id base_face_id
;
6843 Lisp_Object prop
, position
, end
, limit
;
6844 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6845 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6846 struct face
*base_face
;
6847 int multibyte_p
= STRING_MULTIBYTE (string
);
6848 Lisp_Object prop_name
= mouse_p
? Qmouse_face
: Qface
;
6850 /* Get the value of the face property at the current position within
6851 STRING. Value is nil if there is no face property. */
6852 XSETFASTINT (position
, pos
);
6853 prop
= Fget_text_property (position
, prop_name
, string
);
6855 /* Get the next position at which to check for faces. Value of end
6856 is nil if face is constant all the way to the end of the string.
6857 Otherwise it is a string position where to check faces next.
6858 Limit is the maximum position up to which to check for property
6859 changes in Fnext_single_property_change. Strings are usually
6860 short, so set the limit to the end of the string. */
6861 XSETFASTINT (limit
, XSTRING (string
)->size
);
6862 end
= Fnext_single_property_change (position
, prop_name
, string
, limit
);
6864 *endptr
= XFASTINT (end
);
6868 base_face
= FACE_FROM_ID (f
, base_face_id
);
6869 xassert (base_face
);
6871 /* Optimize the default case that there is no face property and we
6872 are not in the region. */
6874 && (base_face_id
!= DEFAULT_FACE_ID
6875 /* BUFPOS <= 0 means STRING is not an overlay string, so
6876 that the region doesn't have to be taken into account. */
6878 || bufpos
< region_beg
6879 || bufpos
>= region_end
)
6881 /* We can't realize faces for different charsets differently
6882 if we don't have fonts, so we can stop here if not working
6883 on a window-system frame. */
6884 || !FRAME_WINDOW_P (f
)
6885 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6886 return base_face
->id
;
6888 /* Begin with attributes from the base face. */
6889 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6891 /* Merge in attributes specified via text properties. */
6893 merge_face_vector_with_property (f
, attrs
, prop
);
6895 /* If in the region, merge in the region face. */
6897 && bufpos
>= region_beg
6898 && bufpos
< region_end
)
6900 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6901 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6904 /* Look up a realized face with the given face attributes,
6905 or realize a new one for ASCII characters. */
6906 return lookup_face (f
, attrs
, 0, NULL
);
6911 /***********************************************************************
6913 ***********************************************************************/
6917 /* Print the contents of the realized face FACE to stderr. */
6920 dump_realized_face (face
)
6923 fprintf (stderr
, "ID: %d\n", face
->id
);
6924 #ifdef HAVE_X_WINDOWS
6925 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6927 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6929 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
6930 fprintf (stderr
, "background: 0x%lx (%s)\n",
6932 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
6933 fprintf (stderr
, "font_name: %s (%s)\n",
6935 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
6936 #ifdef HAVE_X_WINDOWS
6937 fprintf (stderr
, "font = %p\n", face
->font
);
6939 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
6940 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6941 fprintf (stderr
, "underline: %d (%s)\n",
6943 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
6944 fprintf (stderr
, "hash: %d\n", face
->hash
);
6945 fprintf (stderr
, "charset: %d\n", face
->charset
);
6949 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
6957 fprintf (stderr
, "font selection order: ");
6958 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6959 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6960 fprintf (stderr
, "\n");
6962 fprintf (stderr
, "alternative fonts: ");
6963 debug_print (Vface_alternative_font_family_alist
);
6964 fprintf (stderr
, "\n");
6966 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6967 Fdump_face (make_number (i
));
6972 CHECK_NUMBER (n
, 0);
6973 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6975 error ("Not a valid face");
6976 dump_realized_face (face
);
6983 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6987 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6988 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6989 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6993 #endif /* GLYPH_DEBUG != 0 */
6997 /***********************************************************************
6999 ***********************************************************************/
7004 Qface
= intern ("face");
7006 Qbitmap_spec_p
= intern ("bitmap-spec-p");
7007 staticpro (&Qbitmap_spec_p
);
7008 Qframe_update_face_colors
= intern ("frame-update-face-colors");
7009 staticpro (&Qframe_update_face_colors
);
7011 /* Lisp face attribute keywords. */
7012 QCfamily
= intern (":family");
7013 staticpro (&QCfamily
);
7014 QCheight
= intern (":height");
7015 staticpro (&QCheight
);
7016 QCweight
= intern (":weight");
7017 staticpro (&QCweight
);
7018 QCslant
= intern (":slant");
7019 staticpro (&QCslant
);
7020 QCunderline
= intern (":underline");
7021 staticpro (&QCunderline
);
7022 QCinverse_video
= intern (":inverse-video");
7023 staticpro (&QCinverse_video
);
7024 QCreverse_video
= intern (":reverse-video");
7025 staticpro (&QCreverse_video
);
7026 QCforeground
= intern (":foreground");
7027 staticpro (&QCforeground
);
7028 QCbackground
= intern (":background");
7029 staticpro (&QCbackground
);
7030 QCstipple
= intern (":stipple");;
7031 staticpro (&QCstipple
);
7032 QCwidth
= intern (":width");
7033 staticpro (&QCwidth
);
7034 QCfont
= intern (":font");
7035 staticpro (&QCfont
);
7036 QCbold
= intern (":bold");
7037 staticpro (&QCbold
);
7038 QCitalic
= intern (":italic");
7039 staticpro (&QCitalic
);
7040 QCoverline
= intern (":overline");
7041 staticpro (&QCoverline
);
7042 QCstrike_through
= intern (":strike-through");
7043 staticpro (&QCstrike_through
);
7044 QCbox
= intern (":box");
7046 QCinherit
= intern (":inherit");
7047 staticpro (&QCinherit
);
7049 /* Symbols used for Lisp face attribute values. */
7050 QCcolor
= intern (":color");
7051 staticpro (&QCcolor
);
7052 QCline_width
= intern (":line-width");
7053 staticpro (&QCline_width
);
7054 QCstyle
= intern (":style");
7055 staticpro (&QCstyle
);
7056 Qreleased_button
= intern ("released-button");
7057 staticpro (&Qreleased_button
);
7058 Qpressed_button
= intern ("pressed-button");
7059 staticpro (&Qpressed_button
);
7060 Qnormal
= intern ("normal");
7061 staticpro (&Qnormal
);
7062 Qultra_light
= intern ("ultra-light");
7063 staticpro (&Qultra_light
);
7064 Qextra_light
= intern ("extra-light");
7065 staticpro (&Qextra_light
);
7066 Qlight
= intern ("light");
7067 staticpro (&Qlight
);
7068 Qsemi_light
= intern ("semi-light");
7069 staticpro (&Qsemi_light
);
7070 Qsemi_bold
= intern ("semi-bold");
7071 staticpro (&Qsemi_bold
);
7072 Qbold
= intern ("bold");
7074 Qextra_bold
= intern ("extra-bold");
7075 staticpro (&Qextra_bold
);
7076 Qultra_bold
= intern ("ultra-bold");
7077 staticpro (&Qultra_bold
);
7078 Qoblique
= intern ("oblique");
7079 staticpro (&Qoblique
);
7080 Qitalic
= intern ("italic");
7081 staticpro (&Qitalic
);
7082 Qreverse_oblique
= intern ("reverse-oblique");
7083 staticpro (&Qreverse_oblique
);
7084 Qreverse_italic
= intern ("reverse-italic");
7085 staticpro (&Qreverse_italic
);
7086 Qultra_condensed
= intern ("ultra-condensed");
7087 staticpro (&Qultra_condensed
);
7088 Qextra_condensed
= intern ("extra-condensed");
7089 staticpro (&Qextra_condensed
);
7090 Qcondensed
= intern ("condensed");
7091 staticpro (&Qcondensed
);
7092 Qsemi_condensed
= intern ("semi-condensed");
7093 staticpro (&Qsemi_condensed
);
7094 Qsemi_expanded
= intern ("semi-expanded");
7095 staticpro (&Qsemi_expanded
);
7096 Qexpanded
= intern ("expanded");
7097 staticpro (&Qexpanded
);
7098 Qextra_expanded
= intern ("extra-expanded");
7099 staticpro (&Qextra_expanded
);
7100 Qultra_expanded
= intern ("ultra-expanded");
7101 staticpro (&Qultra_expanded
);
7102 Qbackground_color
= intern ("background-color");
7103 staticpro (&Qbackground_color
);
7104 Qforeground_color
= intern ("foreground-color");
7105 staticpro (&Qforeground_color
);
7106 Qunspecified
= intern ("unspecified");
7107 staticpro (&Qunspecified
);
7109 Qface_alias
= intern ("face-alias");
7110 staticpro (&Qface_alias
);
7111 Qdefault
= intern ("default");
7112 staticpro (&Qdefault
);
7113 Qtool_bar
= intern ("tool-bar");
7114 staticpro (&Qtool_bar
);
7115 Qregion
= intern ("region");
7116 staticpro (&Qregion
);
7117 Qfringe
= intern ("fringe");
7118 staticpro (&Qfringe
);
7119 Qheader_line
= intern ("header-line");
7120 staticpro (&Qheader_line
);
7121 Qscroll_bar
= intern ("scroll-bar");
7122 staticpro (&Qscroll_bar
);
7123 Qmenu
= intern ("menu");
7125 Qcursor
= intern ("cursor");
7126 staticpro (&Qcursor
);
7127 Qborder
= intern ("border");
7128 staticpro (&Qborder
);
7129 Qmouse
= intern ("mouse");
7130 staticpro (&Qmouse
);
7131 Qtty_color_desc
= intern ("tty-color-desc");
7132 staticpro (&Qtty_color_desc
);
7133 Qtty_color_by_index
= intern ("tty-color-by-index");
7134 staticpro (&Qtty_color_by_index
);
7135 Qtty_color_alist
= intern ("tty-color-alist");
7136 staticpro (&Qtty_color_alist
);
7137 Qscalable_fonts_allowed
= intern ("scalable-fonts-allowed");
7138 staticpro (&Qscalable_fonts_allowed
);
7140 Vparam_value_alist
= Fcons (Fcons (Qnil
, Qnil
), Qnil
);
7141 staticpro (&Vparam_value_alist
);
7142 Vface_alternative_font_family_alist
= Qnil
;
7143 staticpro (&Vface_alternative_font_family_alist
);
7144 Vface_alternative_font_registry_alist
= Qnil
;
7145 staticpro (&Vface_alternative_font_registry_alist
);
7147 defsubr (&Sinternal_make_lisp_face
);
7148 defsubr (&Sinternal_lisp_face_p
);
7149 defsubr (&Sinternal_set_lisp_face_attribute
);
7150 #ifdef HAVE_WINDOW_SYSTEM
7151 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
7153 defsubr (&Scolor_gray_p
);
7154 defsubr (&Scolor_supported_p
);
7155 defsubr (&Sinternal_get_lisp_face_attribute
);
7156 defsubr (&Sinternal_lisp_face_attribute_values
);
7157 defsubr (&Sinternal_lisp_face_equal_p
);
7158 defsubr (&Sinternal_lisp_face_empty_p
);
7159 defsubr (&Sinternal_copy_lisp_face
);
7160 defsubr (&Sinternal_merge_in_global_face
);
7161 defsubr (&Sface_font
);
7162 defsubr (&Sframe_face_alist
);
7163 defsubr (&Sinternal_set_font_selection_order
);
7164 defsubr (&Sinternal_set_alternative_font_family_alist
);
7165 defsubr (&Sinternal_set_alternative_font_registry_alist
);
7167 defsubr (&Sdump_face
);
7168 defsubr (&Sshow_face_resources
);
7169 #endif /* GLYPH_DEBUG */
7170 defsubr (&Sclear_face_cache
);
7171 defsubr (&Stty_suppress_bold_inverse_default_colors
);
7173 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
7174 defsubr (&Sdump_colors
);
7177 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
7178 "*Limit for font matching.\n\
7179 If an integer > 0, font matching functions won't load more than\n\
7180 that number of fonts when searching for a matching font.");
7181 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7183 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7184 "List of global face definitions (for internal use only.)");
7185 Vface_new_frame_defaults
= Qnil
;
7187 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7188 "*Default stipple pattern used on monochrome displays.\n\
7189 This stipple pattern is used on monochrome displays\n\
7190 instead of shades of gray for a face background color.\n\
7191 See `set-face-stipple' for possible values for this variable.");
7192 Vface_default_stipple
= build_string ("gray3");
7194 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7195 "An alist of defined terminal colors and their RGB values.");
7196 Vtty_defined_color_alist
= Qnil
;
7198 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7199 "Allowed scalable fonts.\n\
7200 A value of nil means don't allow any scalable fonts.\n\
7201 A value of t means allow any scalable font.\n\
7202 Otherwise, value must be a list of regular expressions. A font may be\n\
7203 scaled if its name matches a regular expression in the list.");
7204 Vscalable_fonts_allowed
= Qt
;
7206 DEFVAR_LISP ("face-ignored-fonts", &Vface_ignored_fonts
,
7207 "List of ignored fonts.\n\
7208 Each element is a regular expression that matches names of fonts to ignore.");
7209 Vface_ignored_fonts
= Qnil
;
7211 #ifdef HAVE_WINDOW_SYSTEM
7212 defsubr (&Sbitmap_spec_p
);
7213 defsubr (&Sx_list_fonts
);
7214 defsubr (&Sinternal_face_x_get_resource
);
7215 defsubr (&Sx_family_fonts
);
7216 defsubr (&Sx_font_family_list
);
7217 #endif /* HAVE_WINDOW_SYSTEM */