1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999, 2000 Free Software Foundation.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* New face implementation by Gerd Moellmann <gerd@gnu.org>. */
25 When using Emacs with X, the display style of characters can be
26 changed by defining `faces'. Each face can specify the following
31 2. Relative proportionate width, aka character set width or set
32 width (swidth), e.g. `semi-compressed'.
34 3. Font height in 1/10pt.
36 4. Font weight, e.g. `bold'.
38 5. Font slant, e.g. `italic'.
44 8. Whether or not characters should be underlined, and in what color.
46 9. Whether or not characters should be displayed in inverse video.
48 10. A background stipple, a bitmap.
50 11. Whether or not characters should be overlined, and in what color.
52 12. Whether or not characters should be strike-through, and in what
55 13. Whether or not a box should be drawn around characters, the box
56 type, and, for simple boxes, in what color.
58 14. Font or fontset pattern, or nil. This is a special attribute.
59 When this attribyte is specified, the face uses a font opened by
60 that pattern as is. In addition, all the other font-related
61 attributes (1st thru 5th) are generated from the opened font name.
62 On the other hand, if one of the other font-related attributes are
63 specified, this attribute is set to nil. In that case, the face
64 doesn't inherit this attribute from the `default' face, and uses a
65 font determined by the other attributes (those may be inherited
66 from the `default' face).
68 15. A face name or list of face names from which to inherit attributes.
70 Faces are frame-local by nature because Emacs allows to define the
71 same named face (face names are symbols) differently for different
72 frames. Each frame has an alist of face definitions for all named
73 faces. The value of a named face in such an alist is a Lisp vector
74 with the symbol `face' in slot 0, and a slot for each of the face
75 attributes mentioned above.
77 There is also a global face alist `Vface_new_frame_defaults'. Face
78 definitions from this list are used to initialize faces of newly
81 A face doesn't have to specify all attributes. Those not specified
82 have a value of `unspecified'. Faces specifying all attributes but
83 the 14th are called `fully-specified'.
88 The display style of a given character in the text is determined by
89 combining several faces. This process is called `face merging'.
90 Any aspect of the display style that isn't specified by overlays or
91 text properties is taken from the `default' face. Since it is made
92 sure that the default face is always fully-specified, face merging
93 always results in a fully-specified face.
98 After all face attributes for a character have been determined by
99 merging faces of that character, that face is `realized'. The
100 realization process maps face attributes to what is physically
101 available on the system where Emacs runs. The result is a
102 `realized face' in form of a struct face which is stored in the
103 face cache of the frame on which it was realized.
105 Face realization is done in the context of the character to display
106 because different fonts may be used for different characters. In
107 other words, for characters that have different font
108 specifications, different realized faces are needed to display
111 Font specification is done by fontsets. See the comment in
112 fontset.c for the details. In the current implementation, all ASCII
113 characters share the same font in a fontset.
115 Faces are at first realized for ASCII characters, and, at that
116 time, assigned a specific realized fontset. Hereafter, we call
117 such a face as `ASCII face'. When a face for a multibyte character
118 is realized, it inherits (thus shares) a fontset of an ASCII face
119 that has the same attributes other than font-related ones.
121 Thus, all realzied face have a realized fontset.
126 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
127 font as ASCII characters. That is because it is expected that
128 unibyte text users specify a font that is suitable both for ASCII
129 and raw 8-bit characters.
134 Font selection tries to find the best available matching font for a
135 given (character, face) combination.
137 If the face specifies a fontset name, that fontset determines a
138 pattern for fonts of the given character. If the face specifies a
139 font name or the other font-related attributes, a fontset is
140 realized from the default fontset. In that case, that
141 specification determines a pattern for ASCII characters and the
142 default fontset determines a pattern for multibyte characters.
144 Available fonts on the system on which Emacs runs are then matched
145 against the font pattern. The result of font selection is the best
146 match for the given face attributes in this font list.
148 Font selection can be influenced by the user.
150 1. The user can specify the relative importance he gives the face
151 attributes width, height, weight, and slant by setting
152 face-font-selection-order (faces.el) to a list of face attribute
153 names. The default is '(:width :height :weight :slant), and means
154 that font selection first tries to find a good match for the font
155 width specified by a face, then---within fonts with that
156 width---tries to find a best match for the specified font height,
159 2. Setting face-alternative-font-family-alist allows the user to
160 specify alternative font families to try if a family specified by a
164 Character compositition.
166 Usually, the realization process is already finished when Emacs
167 actually reflects the desired glyph matrix on the screen. However,
168 on displaying a composition (sequence of characters to be composed
169 on the screen), a suitable font for the components of the
170 composition is selected and realized while drawing them on the
171 screen, i.e. the realization process is delayed but in principle
175 Initialization of basic faces.
177 The faces `default', `modeline' are considered `basic faces'.
178 When redisplay happens the first time for a newly created frame,
179 basic faces are realized for CHARSET_ASCII. Frame parameters are
180 used to fill in unspecified attributes of the default face. */
182 /* Define SCALABLE_FONTS to a non-zero value to enable scalable
183 font use. Define it to zero to disable scalable font use.
185 Use of too many or too large scalable fonts can crash XFree86
186 servers. That's why I've put the code dealing with scalable fonts
189 #define SCALABLE_FONTS 1
192 #include <sys/types.h>
193 #include <sys/stat.h>
198 #ifdef HAVE_WINDOW_SYSTEM
201 #ifdef HAVE_X_WINDOWS
205 #include <Xm/XmStrDefs.h>
206 #endif /* USE_MOTIF */
216 /* Redefine X specifics to W32 equivalents to avoid cluttering the
217 code with #ifdef blocks. */
218 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
219 #define x_display_info w32_display_info
220 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
221 #define check_x check_w32
222 #define x_list_fonts w32_list_fonts
223 #define GCGraphicsExposures 0
224 /* For historic reasons, FONT_WIDTH refers to average width on W32,
225 not maximum as on X. Redefine here. */
226 #define FONT_WIDTH FONT_MAX_WIDTH
230 #include "dispextern.h"
231 #include "blockinput.h"
233 #include "intervals.h"
235 #ifdef HAVE_X_WINDOWS
237 /* Compensate for a bug in Xos.h on some systems, on which it requires
238 time.h. On some such systems, Xos.h tries to redefine struct
239 timeval and struct timezone if USG is #defined while it is
242 #ifdef XOS_NEEDS_TIME_H
248 #else /* not XOS_NEEDS_TIME_H */
250 #endif /* not XOS_NEEDS_TIME_H */
252 #endif /* HAVE_X_WINDOWS */
256 #include "keyboard.h"
259 #define max(A, B) ((A) > (B) ? (A) : (B))
260 #define min(A, B) ((A) < (B) ? (A) : (B))
261 #define abs(X) ((X) < 0 ? -(X) : (X))
264 /* Non-zero if face attribute ATTR is unspecified. */
266 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
268 /* Value is the number of elements of VECTOR. */
270 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
272 /* Make a copy of string S on the stack using alloca. Value is a pointer
275 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
277 /* Make a copy of the contents of Lisp string S on the stack using
278 alloca. Value is a pointer to the copy. */
280 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
282 /* Size of hash table of realized faces in face caches (should be a
285 #define FACE_CACHE_BUCKETS_SIZE 1001
287 /* A definition of XColor for non-X frames. */
289 #ifndef HAVE_X_WINDOWS
294 unsigned short red
, green
, blue
;
300 #endif /* not HAVE_X_WINDOWS */
302 /* Keyword symbols used for face attribute names. */
304 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
305 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
306 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
307 Lisp_Object QCreverse_video
;
308 Lisp_Object QCoverline
, QCstrike_through
, QCbox
, QCinherit
;
310 /* Symbols used for attribute values. */
312 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
313 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
314 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
315 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
316 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
317 Lisp_Object Qultra_expanded
;
318 Lisp_Object Qreleased_button
, Qpressed_button
;
319 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
320 Lisp_Object Qunspecified
;
322 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
324 /* The name of the function to call when the background of the frame
325 has changed, frame_update_face_colors. */
327 Lisp_Object Qframe_update_face_colors
;
329 /* Names of basic faces. */
331 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
332 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
333 extern Lisp_Object Qmode_line
;
335 /* The symbol `face-alias'. A symbols having that property is an
336 alias for another face. Value of the property is the name of
339 Lisp_Object Qface_alias
;
341 /* Names of frame parameters related to faces. */
343 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
344 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
346 /* Default stipple pattern used on monochrome displays. This stipple
347 pattern is used on monochrome displays instead of shades of gray
348 for a face background color. See `set-face-stipple' for possible
349 values for this variable. */
351 Lisp_Object Vface_default_stipple
;
353 /* Alist of alternative font families. Each element is of the form
354 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
355 try FAMILY1, then FAMILY2, ... */
357 Lisp_Object Vface_alternative_font_family_alist
;
359 /* Allowed scalable fonts. A value of nil means don't allow any
360 scalable fonts. A value of t means allow the use of any scalable
361 font. Otherwise, value must be a list of regular expressions. A
362 font may be scaled if its name matches a regular expression in the
366 Lisp_Object Vscalable_fonts_allowed
;
369 /* Maximum number of fonts to consider in font_list. If not an
370 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
372 Lisp_Object Vfont_list_limit
;
373 #define DEFAULT_FONT_LIST_LIMIT 100
375 /* The symbols `foreground-color' and `background-color' which can be
376 used as part of a `face' property. This is for compatibility with
379 Lisp_Object Qforeground_color
, Qbackground_color
;
381 /* The symbols `face' and `mouse-face' used as text properties. */
384 extern Lisp_Object Qmouse_face
;
386 /* Error symbol for wrong_type_argument in load_pixmap. */
388 Lisp_Object Qbitmap_spec_p
;
390 /* Alist of global face definitions. Each element is of the form
391 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
392 is a Lisp vector of face attributes. These faces are used
393 to initialize faces for new frames. */
395 Lisp_Object Vface_new_frame_defaults
;
397 /* The next ID to assign to Lisp faces. */
399 static int next_lface_id
;
401 /* A vector mapping Lisp face Id's to face names. */
403 static Lisp_Object
*lface_id_to_name
;
404 static int lface_id_to_name_size
;
406 /* TTY color-related functions (defined in tty-colors.el). */
408 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
;
410 /* The name of the function used to compute colors on TTYs. */
412 Lisp_Object Qtty_color_alist
;
414 /* An alist of defined terminal colors and their RGB values. */
416 Lisp_Object Vtty_defined_color_alist
;
418 /* Counter for calls to clear_face_cache. If this counter reaches
419 CLEAR_FONT_TABLE_COUNT, and a frame has more than
420 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
422 static int clear_font_table_count
;
423 #define CLEAR_FONT_TABLE_COUNT 100
424 #define CLEAR_FONT_TABLE_NFONTS 10
426 /* Non-zero means face attributes have been changed since the last
427 redisplay. Used in redisplay_internal. */
429 int face_change_count
;
431 /* Non-zero means don't display bold text if a face's foreground
432 and background colors are the inverse of the default colors of the
433 display. This is a kluge to suppress `bold black' foreground text
434 which is hard to read on an LCD monitor. */
436 int tty_suppress_bold_inverse_default_colors_p
;
438 /* The total number of colors currently allocated. */
441 static int ncolors_allocated
;
442 static int npixmaps_allocated
;
448 /* Function prototypes. */
453 static void map_tty_color
P_ ((struct frame
*, struct face
*,
454 enum lface_attribute_index
, int *));
455 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
456 static int may_use_scalable_font_p
P_ ((struct font_name
*, char *));
457 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
458 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
460 static int first_font_matching
P_ ((struct frame
*f
, char *,
461 struct font_name
*));
462 static int x_face_list_fonts
P_ ((struct frame
*, char *,
463 struct font_name
*, int, int, int));
464 static int font_scalable_p
P_ ((struct font_name
*));
465 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
466 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
467 static unsigned char *xstrlwr
P_ ((unsigned char *));
468 static void signal_error
P_ ((char *, Lisp_Object
));
469 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
470 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
471 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
472 static void free_face_colors
P_ ((struct frame
*, struct face
*));
473 static int face_color_gray_p
P_ ((struct frame
*, char *));
474 static char *build_font_name
P_ ((struct font_name
*));
475 static void free_font_names
P_ ((struct font_name
*, int));
476 static int sorted_font_list
P_ ((struct frame
*, char *,
477 int (*cmpfn
) P_ ((const void *, const void *)),
478 struct font_name
**));
479 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
480 Lisp_Object
, struct font_name
**));
481 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
,
482 Lisp_Object
, Lisp_Object
, struct font_name
**));
483 static int cmp_font_names
P_ ((const void *, const void *));
484 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
485 struct face
*, int));
486 static struct face
*realize_x_face
P_ ((struct face_cache
*,
487 Lisp_Object
*, int, struct face
*));
488 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
489 Lisp_Object
*, int));
490 static int realize_basic_faces
P_ ((struct frame
*));
491 static int realize_default_face
P_ ((struct frame
*));
492 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
493 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
494 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
495 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
496 static unsigned lface_hash
P_ ((Lisp_Object
*));
497 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
498 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
499 static void free_realized_face
P_ ((struct frame
*, struct face
*));
500 static void clear_face_gcs
P_ ((struct face_cache
*));
501 static void free_face_cache
P_ ((struct face_cache
*));
502 static int face_numeric_weight
P_ ((Lisp_Object
));
503 static int face_numeric_slant
P_ ((Lisp_Object
));
504 static int face_numeric_swidth
P_ ((Lisp_Object
));
505 static int face_fontset
P_ ((Lisp_Object
*));
506 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int));
507 static void merge_face_vectors
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
*, Lisp_Object
));
508 static void merge_face_inheritance
P_ ((struct frame
*f
, Lisp_Object
,
509 Lisp_Object
*, Lisp_Object
));
510 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
512 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
513 Lisp_Object
, int, int));
514 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
515 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
516 static void free_realized_faces
P_ ((struct face_cache
*));
517 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
518 struct font_name
*, int));
519 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
520 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
521 static int xlfd_numeric_slant
P_ ((struct font_name
*));
522 static int xlfd_numeric_weight
P_ ((struct font_name
*));
523 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
524 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
525 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
526 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
527 static int xlfd_fixed_p
P_ ((struct font_name
*));
528 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
530 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
531 struct font_name
*, int,
533 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
534 struct font_name
*, int));
536 #ifdef HAVE_WINDOW_SYSTEM
538 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
539 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
540 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
541 int (*cmpfn
) P_ ((const void *, const void *))));
542 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
543 static void x_free_gc
P_ ((struct frame
*, GC
));
544 static void clear_font_table
P_ ((struct frame
*));
547 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
548 #endif /* WINDOWSNT */
550 #endif /* HAVE_WINDOW_SYSTEM */
553 /***********************************************************************
555 ***********************************************************************/
557 #ifdef HAVE_X_WINDOWS
559 #ifdef DEBUG_X_COLORS
561 /* The following is a poor mans infrastructure for debugging X color
562 allocation problems on displays with PseudoColor-8. Some X servers
563 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
564 color reference counts completely so that they don't signal an
565 error when a color is freed whose reference count is already 0.
566 Other X servers do. To help me debug this, the following code
567 implements a simple reference counting schema of its own, for a
568 single display/screen. --gerd. */
570 /* Reference counts for pixel colors. */
572 int color_count
[256];
574 /* Register color PIXEL as allocated. */
577 register_color (pixel
)
580 xassert (pixel
< 256);
581 ++color_count
[pixel
];
585 /* Register color PIXEL as deallocated. */
588 unregister_color (pixel
)
591 xassert (pixel
< 256);
592 if (color_count
[pixel
] > 0)
593 --color_count
[pixel
];
599 /* Register N colors from PIXELS as deallocated. */
602 unregister_colors (pixels
, n
)
603 unsigned long *pixels
;
607 for (i
= 0; i
< n
; ++i
)
608 unregister_color (pixels
[i
]);
612 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
613 "Dump currently allocated colors and their reference counts to stderr.")
618 fputc ('\n', stderr
);
620 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
623 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
626 fputc ('\n', stderr
);
628 fputc ('\t', stderr
);
632 fputc ('\n', stderr
);
637 #endif /* DEBUG_X_COLORS */
639 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
640 color values. Interrupt input must be blocked when this function
644 x_free_colors (f
, pixels
, npixels
)
646 unsigned long *pixels
;
649 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
651 /* If display has an immutable color map, freeing colors is not
652 necessary and some servers don't allow it. So don't do it. */
653 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
655 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
657 #ifdef DEBUG_X_COLORS
658 unregister_colors (pixels
, npixels
);
664 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
665 color values. Interrupt input must be blocked when this function
669 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
673 unsigned long *pixels
;
676 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
677 int class = dpyinfo
->visual
->class;
679 /* If display has an immutable color map, freeing colors is not
680 necessary and some servers don't allow it. So don't do it. */
681 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
683 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
684 #ifdef DEBUG_X_COLORS
685 unregister_colors (pixels
, npixels
);
691 /* Create and return a GC for use on frame F. GC values and mask
692 are given by XGCV and MASK. */
695 x_create_gc (f
, mask
, xgcv
)
702 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
709 /* Free GC which was used on frame F. */
717 xassert (--ngcs
>= 0);
718 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
722 #endif /* HAVE_X_WINDOWS */
725 /* W32 emulation of GCs */
728 x_create_gc (f
, mask
, xgcv
)
735 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
742 /* Free GC which was used on frame F. */
750 xassert (--ngcs
>= 0);
755 #endif /* WINDOWSNT */
757 /* Like stricmp. Used to compare parts of font names which are in
762 unsigned char *s1
, *s2
;
766 unsigned char c1
= tolower (*s1
);
767 unsigned char c2
= tolower (*s2
);
769 return c1
< c2
? -1 : 1;
774 return *s2
== 0 ? 0 : -1;
779 /* Like strlwr, which might not always be available. */
781 static unsigned char *
785 unsigned char *p
= s
;
794 /* Signal `error' with message S, and additional argument ARG. */
797 signal_error (s
, arg
)
801 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
805 /* If FRAME is nil, return a pointer to the selected frame.
806 Otherwise, check that FRAME is a live frame, and return a pointer
807 to it. NPARAM is the parameter number of FRAME, for
808 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
809 Lisp function definitions. */
811 static INLINE
struct frame
*
812 frame_or_selected_frame (frame
, nparam
)
817 frame
= selected_frame
;
819 CHECK_LIVE_FRAME (frame
, nparam
);
820 return XFRAME (frame
);
824 /***********************************************************************
826 ***********************************************************************/
828 /* Initialize face cache and basic faces for frame F. */
834 /* Make a face cache, if F doesn't have one. */
835 if (FRAME_FACE_CACHE (f
) == NULL
)
836 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
838 #ifdef HAVE_WINDOW_SYSTEM
839 /* Make the image cache. */
840 if (FRAME_WINDOW_P (f
))
842 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
843 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
844 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
846 #endif /* HAVE_WINDOW_SYSTEM */
848 /* Realize basic faces. Must have enough information in frame
849 parameters to realize basic faces at this point. */
850 #ifdef HAVE_X_WINDOWS
851 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
854 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
856 if (!realize_basic_faces (f
))
861 /* Free face cache of frame F. Called from Fdelete_frame. */
867 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
871 free_face_cache (face_cache
);
872 FRAME_FACE_CACHE (f
) = NULL
;
875 #ifdef HAVE_WINDOW_SYSTEM
876 if (FRAME_WINDOW_P (f
))
878 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
881 --image_cache
->refcount
;
882 if (image_cache
->refcount
== 0)
883 free_image_cache (f
);
886 #endif /* HAVE_WINDOW_SYSTEM */
890 /* Clear face caches, and recompute basic faces for frame F. Call
891 this after changing frame parameters on which those faces depend,
892 or when realized faces have been freed due to changing attributes
896 recompute_basic_faces (f
)
899 if (FRAME_FACE_CACHE (f
))
901 clear_face_cache (0);
902 if (!realize_basic_faces (f
))
908 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
909 try to free unused fonts, too. */
912 clear_face_cache (clear_fonts_p
)
915 #ifdef HAVE_WINDOW_SYSTEM
916 Lisp_Object tail
, frame
;
920 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
922 /* From time to time see if we can unload some fonts. This also
923 frees all realized faces on all frames. Fonts needed by
924 faces will be loaded again when faces are realized again. */
925 clear_font_table_count
= 0;
927 FOR_EACH_FRAME (tail
, frame
)
930 if (FRAME_WINDOW_P (f
)
931 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
933 free_all_realized_faces (frame
);
934 clear_font_table (f
);
940 /* Clear GCs of realized faces. */
941 FOR_EACH_FRAME (tail
, frame
)
944 if (FRAME_WINDOW_P (f
))
946 clear_face_gcs (FRAME_FACE_CACHE (f
));
947 clear_image_cache (f
, 0);
951 #endif /* HAVE_WINDOW_SYSTEM */
955 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
956 "Clear face caches on all frames.\n\
957 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
959 Lisp_Object thorougly
;
961 clear_face_cache (!NILP (thorougly
));
963 ++windows_or_buffers_changed
;
969 #ifdef HAVE_WINDOW_SYSTEM
972 /* Remove those fonts from the font table of frame F exept for the
973 default ASCII font for the frame. Called from clear_face_cache
974 from time to time. */
980 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
983 xassert (FRAME_WINDOW_P (f
));
985 /* Free those fonts that are not used by the frame F as the default. */
986 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
988 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
991 || font_info
->font
== FRAME_FONT (f
))
995 if (font_info
->full_name
!= font_info
->name
)
996 xfree (font_info
->full_name
);
997 xfree (font_info
->name
);
1001 #ifdef HAVE_X_WINDOWS
1002 XFreeFont (dpyinfo
->display
, font_info
->font
);
1005 w32_unload_font (dpyinfo
, font_info
->font
);
1009 /* Mark font table slot free. */
1010 font_info
->font
= NULL
;
1011 font_info
->name
= font_info
->full_name
= NULL
;
1015 #endif /* HAVE_WINDOW_SYSTEM */
1019 /***********************************************************************
1021 ***********************************************************************/
1023 #ifdef HAVE_WINDOW_SYSTEM
1025 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1026 "Value is non-nil if OBJECT is a valid bitmap specification.\n\
1027 A bitmap specification is either a string, a file name, or a list\n\
1028 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\
1029 HEIGHT is its height, and DATA is a string containing the bits of\n\
1030 the pixmap. Bits are stored row by row, each row occupies\n\
1031 (WIDTH + 7)/8 bytes.")
1037 if (STRINGP (object
))
1038 /* If OBJECT is a string, it's a file name. */
1040 else if (CONSP (object
))
1042 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1043 HEIGHT must be integers > 0, and DATA must be string large
1044 enough to hold a bitmap of the specified size. */
1045 Lisp_Object width
, height
, data
;
1047 height
= width
= data
= Qnil
;
1051 width
= XCAR (object
);
1052 object
= XCDR (object
);
1055 height
= XCAR (object
);
1056 object
= XCDR (object
);
1058 data
= XCAR (object
);
1062 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1064 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1066 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* XINT (height
))
1071 return pixmap_p
? Qt
: Qnil
;
1075 /* Load a bitmap according to NAME (which is either a file name or a
1076 pixmap spec) for use on frame F. Value is the bitmap_id (see
1077 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1078 bitmap cannot be loaded, display a message saying so, and return
1079 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1080 if these pointers are not null. */
1083 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1086 unsigned int *w_ptr
, *h_ptr
;
1094 tem
= Fbitmap_spec_p (name
);
1096 wrong_type_argument (Qbitmap_spec_p
, name
);
1101 /* Decode a bitmap spec into a bitmap. */
1106 w
= XINT (Fcar (name
));
1107 h
= XINT (Fcar (Fcdr (name
)));
1108 bits
= Fcar (Fcdr (Fcdr (name
)));
1110 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
1115 /* It must be a string -- a file name. */
1116 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1122 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1133 ++npixmaps_allocated
;
1136 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1139 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1145 #endif /* HAVE_WINDOW_SYSTEM */
1149 /***********************************************************************
1151 ***********************************************************************/
1153 #ifdef HAVE_WINDOW_SYSTEM
1155 /* Update the line_height of frame F. Return non-zero if line height
1159 frame_update_line_height (f
)
1162 int line_height
, changed_p
;
1164 line_height
= FONT_HEIGHT (FRAME_FONT (f
));
1165 changed_p
= line_height
!= FRAME_LINE_HEIGHT (f
);
1166 FRAME_LINE_HEIGHT (f
) = line_height
;
1170 #endif /* HAVE_WINDOW_SYSTEM */
1173 /***********************************************************************
1175 ***********************************************************************/
1177 #ifdef HAVE_WINDOW_SYSTEM
1179 /* Load font of face FACE which is used on frame F to display
1180 character C. The name of the font to load is determined by lface
1181 and fontset of FACE. */
1184 load_face_font (f
, face
, c
)
1189 struct font_info
*font_info
= NULL
;
1192 face
->font_info_id
= -1;
1195 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
);
1200 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1205 face
->font_info_id
= font_info
->font_idx
;
1206 face
->font
= font_info
->font
;
1207 face
->font_name
= font_info
->full_name
;
1210 x_free_gc (f
, face
->gc
);
1215 add_to_log ("Unable to load font %s",
1216 build_string (font_name
), Qnil
);
1220 #endif /* HAVE_WINDOW_SYSTEM */
1224 /***********************************************************************
1226 ***********************************************************************/
1228 /* A version of defined_color for non-X frames. */
1231 tty_defined_color (f
, color_name
, color_def
, alloc
)
1237 Lisp_Object color_desc
;
1238 unsigned long color_idx
= FACE_TTY_DEFAULT_COLOR
;
1239 unsigned long red
= 0, green
= 0, blue
= 0;
1242 if (*color_name
&& !NILP (Ffboundp (Qtty_color_desc
)))
1246 XSETFRAME (frame
, f
);
1248 color_desc
= call2 (Qtty_color_desc
, build_string (color_name
), frame
);
1249 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1251 color_idx
= XINT (XCAR (XCDR (color_desc
)));
1252 if (CONSP (XCDR (XCDR (color_desc
))))
1254 red
= XINT (XCAR (XCDR (XCDR (color_desc
))));
1255 green
= XINT (XCAR (XCDR (XCDR (XCDR (color_desc
)))));
1256 blue
= XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc
))))));
1260 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1261 /* We were called early during startup, and the colors are not
1262 yet set up in tty-defined-color-alist. Don't return a failure
1263 indication, since this produces the annoying "Unable to
1264 load color" messages in the *Messages* buffer. */
1267 if (color_idx
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1269 if (strcmp (color_name
, "unspecified-fg") == 0)
1270 color_idx
= FACE_TTY_DEFAULT_FG_COLOR
;
1271 else if (strcmp (color_name
, "unspecified-bg") == 0)
1272 color_idx
= FACE_TTY_DEFAULT_BG_COLOR
;
1275 if (color_idx
!= FACE_TTY_DEFAULT_COLOR
)
1278 color_def
->pixel
= color_idx
;
1279 color_def
->red
= red
;
1280 color_def
->green
= green
;
1281 color_def
->blue
= blue
;
1287 /* Decide if color named COLOR_NAME is valid for the display
1288 associated with the frame F; if so, return the rgb values in
1289 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1291 This does the right thing for any type of frame. */
1294 defined_color (f
, color_name
, color_def
, alloc
)
1300 if (!FRAME_WINDOW_P (f
))
1301 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1302 #ifdef HAVE_X_WINDOWS
1303 else if (FRAME_X_P (f
))
1304 return x_defined_color (f
, color_name
, color_def
, alloc
);
1307 else if (FRAME_W32_P (f
))
1308 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1311 else if (FRAME_MAC_P (f
))
1312 /* FIXME: mac_defined_color doesn't exist! */
1313 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1320 /* Given the index IDX of a tty color on frame F, return its name, a
1324 tty_color_name (f
, idx
)
1328 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1331 Lisp_Object coldesc
;
1333 XSETFRAME (frame
, f
);
1334 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1336 if (!NILP (coldesc
))
1337 return XCAR (coldesc
);
1340 /* We can have an MSDOG frame under -nw for a short window of
1341 opportunity before internal_terminal_init is called. DTRT. */
1342 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1343 return msdos_stdcolor_name (idx
);
1346 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1347 return build_string (unspecified_fg
);
1348 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1349 return build_string (unspecified_bg
);
1352 return vga_stdcolor_name (idx
);
1355 return Qunspecified
;
1359 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1360 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1363 face_color_gray_p (f
, color_name
)
1370 if (defined_color (f
, color_name
, &color
, 0))
1371 gray_p
= ((abs (color
.red
- color
.green
)
1372 < max (color
.red
, color
.green
) / 20)
1373 && (abs (color
.green
- color
.blue
)
1374 < max (color
.green
, color
.blue
) / 20)
1375 && (abs (color
.blue
- color
.red
)
1376 < max (color
.blue
, color
.red
) / 20));
1384 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1385 BACKGROUND_P non-zero means the color will be used as background
1389 face_color_supported_p (f
, color_name
, background_p
)
1397 XSETFRAME (frame
, f
);
1398 return (FRAME_WINDOW_P (f
)
1399 ? (!NILP (Fxw_display_color_p (frame
))
1400 || xstricmp (color_name
, "black") == 0
1401 || xstricmp (color_name
, "white") == 0
1403 && face_color_gray_p (f
, color_name
))
1404 || (!NILP (Fx_display_grayscale_p (frame
))
1405 && face_color_gray_p (f
, color_name
)))
1406 : tty_defined_color (f
, color_name
, ¬_used
, 0));
1410 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1411 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1412 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1413 If FRAME is nil or omitted, use the selected frame.")
1415 Lisp_Object color
, frame
;
1419 CHECK_FRAME (frame
, 0);
1420 CHECK_STRING (color
, 0);
1422 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1426 DEFUN ("color-supported-p", Fcolor_supported_p
,
1427 Scolor_supported_p
, 2, 3, 0,
1428 "Return non-nil if COLOR can be displayed on FRAME.\n\
1429 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1430 If FRAME is nil or omitted, use the selected frame.\n\
1431 COLOR must be a valid color name.")
1432 (color
, frame
, background_p
)
1433 Lisp_Object frame
, color
, background_p
;
1437 CHECK_FRAME (frame
, 0);
1438 CHECK_STRING (color
, 0);
1440 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1446 /* Load color with name NAME for use by face FACE on frame F.
1447 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1448 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1449 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1450 pixel color. If color cannot be loaded, display a message, and
1451 return the foreground, background or underline color of F, but
1452 record that fact in flags of the face so that we don't try to free
1456 load_color (f
, face
, name
, target_index
)
1460 enum lface_attribute_index target_index
;
1464 xassert (STRINGP (name
));
1465 xassert (target_index
== LFACE_FOREGROUND_INDEX
1466 || target_index
== LFACE_BACKGROUND_INDEX
1467 || target_index
== LFACE_UNDERLINE_INDEX
1468 || target_index
== LFACE_OVERLINE_INDEX
1469 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1470 || target_index
== LFACE_BOX_INDEX
);
1472 /* if the color map is full, defined_color will return a best match
1473 to the values in an existing cell. */
1474 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1476 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1478 switch (target_index
)
1480 case LFACE_FOREGROUND_INDEX
:
1481 face
->foreground_defaulted_p
= 1;
1482 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1485 case LFACE_BACKGROUND_INDEX
:
1486 face
->background_defaulted_p
= 1;
1487 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1490 case LFACE_UNDERLINE_INDEX
:
1491 face
->underline_defaulted_p
= 1;
1492 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1495 case LFACE_OVERLINE_INDEX
:
1496 face
->overline_color_defaulted_p
= 1;
1497 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1500 case LFACE_STRIKE_THROUGH_INDEX
:
1501 face
->strike_through_color_defaulted_p
= 1;
1502 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1505 case LFACE_BOX_INDEX
:
1506 face
->box_color_defaulted_p
= 1;
1507 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1516 ++ncolors_allocated
;
1523 #ifdef HAVE_WINDOW_SYSTEM
1525 /* Load colors for face FACE which is used on frame F. Colors are
1526 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1527 of ATTRS. If the background color specified is not supported on F,
1528 try to emulate gray colors with a stipple from Vface_default_stipple. */
1531 load_face_colors (f
, face
, attrs
)
1538 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1539 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1541 /* Swap colors if face is inverse-video. */
1542 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1550 /* Check for support for foreground, not for background because
1551 face_color_supported_p is smart enough to know that grays are
1552 "supported" as background because we are supposed to use stipple
1554 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1555 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1557 x_destroy_bitmap (f
, face
->stipple
);
1558 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1559 &face
->pixmap_w
, &face
->pixmap_h
);
1562 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1563 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1567 /* Free color PIXEL on frame F. */
1570 unload_color (f
, pixel
)
1572 unsigned long pixel
;
1574 #ifdef HAVE_X_WINDOWS
1576 x_free_colors (f
, &pixel
, 1);
1582 /* Free colors allocated for FACE. */
1585 free_face_colors (f
, face
)
1589 #ifdef HAVE_X_WINDOWS
1592 if (!face
->foreground_defaulted_p
)
1594 x_free_colors (f
, &face
->foreground
, 1);
1595 IF_DEBUG (--ncolors_allocated
);
1598 if (!face
->background_defaulted_p
)
1600 x_free_colors (f
, &face
->background
, 1);
1601 IF_DEBUG (--ncolors_allocated
);
1604 if (face
->underline_p
1605 && !face
->underline_defaulted_p
)
1607 x_free_colors (f
, &face
->underline_color
, 1);
1608 IF_DEBUG (--ncolors_allocated
);
1611 if (face
->overline_p
1612 && !face
->overline_color_defaulted_p
)
1614 x_free_colors (f
, &face
->overline_color
, 1);
1615 IF_DEBUG (--ncolors_allocated
);
1618 if (face
->strike_through_p
1619 && !face
->strike_through_color_defaulted_p
)
1621 x_free_colors (f
, &face
->strike_through_color
, 1);
1622 IF_DEBUG (--ncolors_allocated
);
1625 if (face
->box
!= FACE_NO_BOX
1626 && !face
->box_color_defaulted_p
)
1628 x_free_colors (f
, &face
->box_color
, 1);
1629 IF_DEBUG (--ncolors_allocated
);
1633 #endif /* HAVE_X_WINDOWS */
1636 #endif /* HAVE_WINDOW_SYSTEM */
1640 /***********************************************************************
1642 ***********************************************************************/
1644 /* An enumerator for each field of an XLFD font name. */
1665 /* An enumerator for each possible slant value of a font. Taken from
1666 the XLFD specification. */
1674 XLFD_SLANT_REVERSE_ITALIC
,
1675 XLFD_SLANT_REVERSE_OBLIQUE
,
1679 /* Relative font weight according to XLFD documentation. */
1683 XLFD_WEIGHT_UNKNOWN
,
1684 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1685 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1686 XLFD_WEIGHT_LIGHT
, /* 30 */
1687 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1688 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1689 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1690 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1691 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1692 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1695 /* Relative proportionate width. */
1699 XLFD_SWIDTH_UNKNOWN
,
1700 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1701 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1702 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1703 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1704 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1705 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1706 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1707 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1708 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1711 /* Structure used for tables mapping XLFD weight, slant, and width
1712 names to numeric and symbolic values. */
1718 Lisp_Object
*symbol
;
1721 /* Table of XLFD slant names and their numeric and symbolic
1722 representations. This table must be sorted by slant names in
1725 static struct table_entry slant_table
[] =
1727 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1728 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1729 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1730 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1731 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1732 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1735 /* Table of XLFD weight names. This table must be sorted by weight
1736 names in ascending order. */
1738 static struct table_entry weight_table
[] =
1740 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1741 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1742 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1743 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1744 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1745 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1746 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1747 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1748 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1749 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1750 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1751 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1752 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1753 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1754 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1757 /* Table of XLFD width names. This table must be sorted by width
1758 names in ascending order. */
1760 static struct table_entry swidth_table
[] =
1762 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1763 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1764 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1765 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1766 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1767 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1768 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1769 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1770 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1771 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1772 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1773 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1774 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1775 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1776 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1779 /* Structure used to hold the result of splitting font names in XLFD
1780 format into their fields. */
1784 /* The original name which is modified destructively by
1785 split_font_name. The pointer is kept here to be able to free it
1786 if it was allocated from the heap. */
1789 /* Font name fields. Each vector element points into `name' above.
1790 Fields are NUL-terminated. */
1791 char *fields
[XLFD_LAST
];
1793 /* Numeric values for those fields that interest us. See
1794 split_font_name for which these are. */
1795 int numeric
[XLFD_LAST
];
1798 /* The frame in effect when sorting font names. Set temporarily in
1799 sort_fonts so that it is available in font comparison functions. */
1801 static struct frame
*font_frame
;
1803 /* Order by which font selection chooses fonts. The default values
1804 mean `first, find a best match for the font width, then for the
1805 font height, then for weight, then for slant.' This variable can be
1806 set via set-face-font-sort-order. */
1808 static int font_sort_order
[4];
1811 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1812 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1813 is a pointer to the matching table entry or null if no table entry
1816 static struct table_entry
*
1817 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1818 struct table_entry
*table
;
1820 struct font_name
*font
;
1823 /* Function split_font_name converts fields to lower-case, so there
1824 is no need to use xstrlwr or xstricmp here. */
1825 char *s
= font
->fields
[field_index
];
1826 int low
, mid
, high
, cmp
;
1833 mid
= (low
+ high
) / 2;
1834 cmp
= strcmp (table
[mid
].name
, s
);
1848 /* Return a numeric representation for font name field
1849 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1850 has DIM entries. Value is the numeric value found or DFLT if no
1851 table entry matches. This function is used to translate weight,
1852 slant, and swidth names of XLFD font names to numeric values. */
1855 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1856 struct table_entry
*table
;
1858 struct font_name
*font
;
1862 struct table_entry
*p
;
1863 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1864 return p
? p
->numeric
: dflt
;
1868 /* Return a symbolic representation for font name field
1869 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1870 has DIM entries. Value is the symbolic value found or DFLT if no
1871 table entry matches. This function is used to translate weight,
1872 slant, and swidth names of XLFD font names to symbols. */
1874 static INLINE Lisp_Object
1875 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1876 struct table_entry
*table
;
1878 struct font_name
*font
;
1882 struct table_entry
*p
;
1883 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1884 return p
? *p
->symbol
: dflt
;
1888 /* Return a numeric value for the slant of the font given by FONT. */
1891 xlfd_numeric_slant (font
)
1892 struct font_name
*font
;
1894 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1895 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1899 /* Return a symbol representing the weight of the font given by FONT. */
1901 static INLINE Lisp_Object
1902 xlfd_symbolic_slant (font
)
1903 struct font_name
*font
;
1905 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1906 font
, XLFD_SLANT
, Qnormal
);
1910 /* Return a numeric value for the weight of the font given by FONT. */
1913 xlfd_numeric_weight (font
)
1914 struct font_name
*font
;
1916 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1917 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1921 /* Return a symbol representing the slant of the font given by FONT. */
1923 static INLINE Lisp_Object
1924 xlfd_symbolic_weight (font
)
1925 struct font_name
*font
;
1927 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1928 font
, XLFD_WEIGHT
, Qnormal
);
1932 /* Return a numeric value for the swidth of the font whose XLFD font
1933 name fields are found in FONT. */
1936 xlfd_numeric_swidth (font
)
1937 struct font_name
*font
;
1939 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
1940 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
1944 /* Return a symbolic value for the swidth of FONT. */
1946 static INLINE Lisp_Object
1947 xlfd_symbolic_swidth (font
)
1948 struct font_name
*font
;
1950 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
1951 font
, XLFD_SWIDTH
, Qnormal
);
1955 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
1956 entries. Value is a pointer to the matching table entry or null if
1957 no element of TABLE contains SYMBOL. */
1959 static struct table_entry
*
1960 face_value (table
, dim
, symbol
)
1961 struct table_entry
*table
;
1967 xassert (SYMBOLP (symbol
));
1969 for (i
= 0; i
< dim
; ++i
)
1970 if (EQ (*table
[i
].symbol
, symbol
))
1973 return i
< dim
? table
+ i
: NULL
;
1977 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
1978 entries. Value is -1 if SYMBOL is not found in TABLE. */
1981 face_numeric_value (table
, dim
, symbol
)
1982 struct table_entry
*table
;
1986 struct table_entry
*p
= face_value (table
, dim
, symbol
);
1987 return p
? p
->numeric
: -1;
1991 /* Return a numeric value representing the weight specified by Lisp
1992 symbol WEIGHT. Value is one of the enumerators of enum
1996 face_numeric_weight (weight
)
1999 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
2003 /* Return a numeric value representing the slant specified by Lisp
2004 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
2007 face_numeric_slant (slant
)
2010 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
2014 /* Return a numeric value representing the swidth specified by Lisp
2015 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
2018 face_numeric_swidth (width
)
2021 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2025 #ifdef HAVE_WINDOW_SYSTEM
2027 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2031 struct font_name
*font
;
2033 /* Function split_font_name converts fields to lower-case, so there
2034 is no need to use tolower here. */
2035 return *font
->fields
[XLFD_SPACING
] != 'p';
2039 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2041 The actual height of the font when displayed on F depends on the
2042 resolution of both the font and frame. For example, a 10pt font
2043 designed for a 100dpi display will display larger than 10pt on a
2044 75dpi display. (It's not unusual to use fonts not designed for the
2045 display one is using. For example, some intlfonts are available in
2046 72dpi versions, only.)
2048 Value is the real point size of FONT on frame F, or 0 if it cannot
2052 xlfd_point_size (f
, font
)
2054 struct font_name
*font
;
2056 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2057 double font_resy
= atoi (font
->fields
[XLFD_RESY
]);
2058 double font_pt
= atoi (font
->fields
[XLFD_POINT_SIZE
]);
2061 if (font_resy
== 0 || font_pt
== 0)
2064 real_pt
= (font_resy
/ resy
) * font_pt
+ 0.5;
2070 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2071 of frame F. This function is used to guess a point size of font
2072 when only the pixel height of the font is available. */
2075 pixel_point_size (f
, pixel
)
2079 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2083 /* As one inch is 72 points, 72/RESY gives the point size of one dot. */
2084 real_pt
= pixel
* 72 / resy
;
2085 int_pt
= real_pt
+ 0.5;
2091 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2092 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2093 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2094 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2095 zero if the font name doesn't have the format we expect. The
2096 expected format is a font name that starts with a `-' and has
2097 XLFD_LAST fields separated by `-'. (The XLFD specification allows
2098 forms of font names where certain field contents are enclosed in
2099 square brackets. We don't support that, for now. */
2102 split_font_name (f
, font
, numeric_p
)
2104 struct font_name
*font
;
2110 if (*font
->name
== '-')
2112 char *p
= xstrlwr (font
->name
) + 1;
2114 while (i
< XLFD_LAST
)
2116 font
->fields
[i
] = p
;
2119 while (*p
&& *p
!= '-')
2129 success_p
= i
== XLFD_LAST
;
2131 /* If requested, and font name was in the expected format,
2132 compute numeric values for some fields. */
2133 if (numeric_p
&& success_p
)
2135 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2136 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2137 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2138 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2139 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2146 /* Build an XLFD font name from font name fields in FONT. Value is a
2147 pointer to the font name, which is allocated via xmalloc. */
2150 build_font_name (font
)
2151 struct font_name
*font
;
2155 char *font_name
= (char *) xmalloc (size
);
2156 int total_length
= 0;
2158 for (i
= 0; i
< XLFD_LAST
; ++i
)
2160 /* Add 1 because of the leading `-'. */
2161 int len
= strlen (font
->fields
[i
]) + 1;
2163 /* Reallocate font_name if necessary. Add 1 for the final
2165 if (total_length
+ len
+ 1 >= size
)
2167 int new_size
= max (2 * size
, size
+ len
+ 1);
2168 int sz
= new_size
* sizeof *font_name
;
2169 font_name
= (char *) xrealloc (font_name
, sz
);
2173 font_name
[total_length
] = '-';
2174 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2175 total_length
+= len
;
2178 font_name
[total_length
] = 0;
2183 /* Free an array FONTS of N font_name structures. This frees FONTS
2184 itself and all `name' fields in its elements. */
2187 free_font_names (fonts
, n
)
2188 struct font_name
*fonts
;
2192 xfree (fonts
[--n
].name
);
2197 /* Sort vector FONTS of font_name structures which contains NFONTS
2198 elements using qsort and comparison function CMPFN. F is the frame
2199 on which the fonts will be used. The global variable font_frame
2200 is temporarily set to F to make it available in CMPFN. */
2203 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2205 struct font_name
*fonts
;
2207 int (*cmpfn
) P_ ((const void *, const void *));
2210 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2215 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2216 display in x_display_list. FONTS is a pointer to a vector of
2217 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2218 alternative patterns from Valternate_fontname_alist if no fonts are
2219 found matching PATTERN. SCALABLE_FONTS_P non-zero means include
2222 For all fonts found, set FONTS[i].name to the name of the font,
2223 allocated via xmalloc, and split font names into fields. Ignore
2224 fonts that we can't parse. Value is the number of fonts found.
2226 This is similar to x_list_fonts. The differences are:
2228 1. It avoids consing.
2229 2. It never calls XLoadQueryFont. */
2232 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
,
2236 struct font_name
*fonts
;
2237 int nfonts
, try_alternatives_p
;
2238 int scalable_fonts_p
;
2242 #ifdef HAVE_X_WINDOWS
2243 Display
*dpy
= f
? FRAME_X_DISPLAY (f
) : x_display_list
->display
;
2245 /* Get the list of fonts matching PATTERN from the X server. */
2247 names
= XListFonts (dpy
, pattern
, nfonts
, &n
);
2251 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2252 better to do it the other way around. */
2254 Lisp_Object lpattern
, tem
;
2259 lpattern
= build_string (pattern
);
2261 /* Get the list of fonts matching PATTERN. */
2263 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2266 /* Count fonts returned */
2267 for (tem
= lfonts
; CONSP (tem
); tem
= XCDR (tem
))
2270 /* Allocate array. */
2272 names
= (char **) xmalloc (n
* sizeof (char *));
2274 /* Extract font names into char * array. */
2276 for (i
= 0; i
< n
; i
++)
2278 names
[i
] = XSTRING (XCAR (tem
))->data
;
2285 /* Make a copy of the font names we got from X, and
2286 split them into fields. */
2287 for (i
= j
= 0; i
< n
; ++i
)
2289 /* Make a copy of the font name. */
2290 fonts
[j
].name
= xstrdup (names
[i
]);
2292 /* Ignore fonts having a name that we can't parse. */
2293 if (!split_font_name (f
, fonts
+ j
, 1))
2294 xfree (fonts
[j
].name
);
2295 else if (font_scalable_p (fonts
+ j
))
2298 if (!scalable_fonts_p
2299 || !may_use_scalable_font_p (fonts
+ j
, names
[i
]))
2300 xfree (fonts
[j
].name
);
2303 #else /* !SCALABLE_FONTS */
2304 /* Always ignore scalable fonts. */
2305 xfree (fonts
[j
].name
);
2306 #endif /* !SCALABLE_FONTS */
2314 #ifdef HAVE_X_WINDOWS
2315 /* Free font names. */
2317 XFreeFontNames (names
);
2323 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2324 if (n
== 0 && try_alternatives_p
)
2326 Lisp_Object list
= Valternate_fontname_alist
;
2328 while (CONSP (list
))
2330 Lisp_Object entry
= XCAR (list
);
2332 && STRINGP (XCAR (entry
))
2333 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2340 Lisp_Object patterns
= XCAR (list
);
2343 while (CONSP (patterns
)
2344 /* If list is screwed up, give up. */
2345 && (name
= XCAR (patterns
),
2347 /* Ignore patterns equal to PATTERN because we tried that
2348 already with no success. */
2349 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2350 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2354 patterns
= XCDR (patterns
);
2362 /* Determine the first font matching PATTERN on frame F. Return in
2363 *FONT the matching font name, split into fields. Value is non-zero
2364 if a match was found. */
2367 first_font_matching (f
, pattern
, font
)
2370 struct font_name
*font
;
2373 struct font_name
*fonts
;
2375 fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof *fonts
);
2376 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1, 0);
2380 bcopy (&fonts
[0], font
, sizeof *font
);
2382 fonts
[0].name
= NULL
;
2383 free_font_names (fonts
, nfonts
);
2390 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2391 using comparison function CMPFN. Value is the number of fonts
2392 found. If value is non-zero, *FONTS is set to a vector of
2393 font_name structures allocated from the heap containing matching
2394 fonts. Each element of *FONTS contains a name member that is also
2395 allocated from the heap. Font names in these structures are split
2396 into fields. Use free_font_names to free such an array. */
2399 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2402 int (*cmpfn
) P_ ((const void *, const void *));
2403 struct font_name
**fonts
;
2407 /* Get the list of fonts matching pattern. 100 should suffice. */
2408 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2409 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2410 nfonts
= XFASTINT (Vfont_list_limit
);
2412 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2414 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 1);
2416 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 0);
2419 /* Sort the resulting array and return it in *FONTS. If no
2420 fonts were found, make sure to set *FONTS to null. */
2422 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2433 /* Compare two font_name structures *A and *B. Value is analogous to
2434 strcmp. Sort order is given by the global variable
2435 font_sort_order. Font names are sorted so that, everything else
2436 being equal, fonts with a resolution closer to that of the frame on
2437 which they are used are listed first. The global variable
2438 font_frame is the frame on which we operate. */
2441 cmp_font_names (a
, b
)
2444 struct font_name
*x
= (struct font_name
*) a
;
2445 struct font_name
*y
= (struct font_name
*) b
;
2448 /* All strings have been converted to lower-case by split_font_name,
2449 so we can use strcmp here. */
2450 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2455 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2457 int j
= font_sort_order
[i
];
2458 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2463 /* Everything else being equal, we prefer fonts with an
2464 y-resolution closer to that of the frame. */
2465 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2466 int x_resy
= x
->numeric
[XLFD_RESY
];
2467 int y_resy
= y
->numeric
[XLFD_RESY
];
2468 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2476 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2477 is non-nil list fonts matching that pattern. Otherwise, if
2478 REGISTRY is non-nil return only fonts with that registry, otherwise
2479 return fonts of any registry. Set *FONTS to a vector of font_name
2480 structures allocated from the heap containing the fonts found.
2481 Value is the number of fonts found. */
2484 font_list (f
, pattern
, family
, registry
, fonts
)
2486 Lisp_Object pattern
, family
, registry
;
2487 struct font_name
**fonts
;
2489 char *pattern_str
, *family_str
, *registry_str
;
2493 family_str
= (NILP (family
) ? "*" : (char *) XSTRING (family
)->data
);
2494 registry_str
= (NILP (registry
) ? "*" : (char *) XSTRING (registry
)->data
);
2496 pattern_str
= (char *) alloca (strlen (family_str
)
2497 + strlen (registry_str
)
2499 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2500 strcat (pattern_str
, family_str
);
2501 strcat (pattern_str
, "-*-");
2502 strcat (pattern_str
, registry_str
);
2503 if (!index (registry_str
, '-'))
2505 if (registry_str
[strlen (registry_str
) - 1] == '*')
2506 strcat (pattern_str
, "-*");
2508 strcat (pattern_str
, "*-*");
2512 pattern_str
= (char *) XSTRING (pattern
)->data
;
2514 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2518 /* Remove elements from LIST whose cars are `equal'. Called from
2519 x-family-fonts and x-font-family-list to remove duplicate font
2523 remove_duplicates (list
)
2526 Lisp_Object tail
= list
;
2528 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2530 Lisp_Object next
= XCDR (tail
);
2531 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2532 XCDR (tail
) = XCDR (next
);
2539 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2540 "Return a list of available fonts of family FAMILY on FRAME.\n\
2541 If FAMILY is omitted or nil, list all families.\n\
2542 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2544 If FRAME is omitted or nil, use the selected frame.\n\
2545 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2546 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2547 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2548 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2549 width, weight and slant of the font. These symbols are the same as for\n\
2550 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2551 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2552 giving the registry and encoding of the font.\n\
2553 The result list is sorted according to the current setting of\n\
2554 the face font sort order.")
2556 Lisp_Object family
, frame
;
2558 struct frame
*f
= check_x_frame (frame
);
2559 struct font_name
*fonts
;
2562 struct gcpro gcpro1
;
2565 CHECK_STRING (family
, 1);
2569 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2570 for (i
= nfonts
- 1; i
>= 0; --i
)
2572 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2575 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2576 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2577 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2578 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2579 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2580 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2581 tem
= build_font_name (fonts
+ i
);
2582 ASET (v
, 6, build_string (tem
));
2583 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2584 fonts
[i
].fields
[XLFD_ENCODING
]);
2585 ASET (v
, 7, build_string (tem
));
2588 result
= Fcons (v
, result
);
2591 remove_duplicates (result
);
2592 free_font_names (fonts
, nfonts
);
2598 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2600 "Return a list of available font families on FRAME.\n\
2601 If FRAME is omitted or nil, use the selected frame.\n\
2602 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2603 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2608 struct frame
*f
= check_x_frame (frame
);
2610 struct font_name
*fonts
;
2612 struct gcpro gcpro1
;
2613 int count
= specpdl_ptr
- specpdl
;
2616 /* Let's consider all fonts. Increase the limit for matching
2617 fonts until we have them all. */
2620 specbind (intern ("font-list-limit"), make_number (limit
));
2621 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2623 if (nfonts
== limit
)
2625 free_font_names (fonts
, nfonts
);
2634 for (i
= nfonts
- 1; i
>= 0; --i
)
2635 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2636 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2639 remove_duplicates (result
);
2640 free_font_names (fonts
, nfonts
);
2642 return unbind_to (count
, result
);
2646 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2647 "Return a list of the names of available fonts matching PATTERN.\n\
2648 If optional arguments FACE and FRAME are specified, return only fonts\n\
2649 the same size as FACE on FRAME.\n\
2650 PATTERN is a string, perhaps with wildcard characters;\n\
2651 the * character matches any substring, and\n\
2652 the ? character matches any single character.\n\
2653 PATTERN is case-insensitive.\n\
2654 FACE is a face name--a symbol.\n\
2656 The return value is a list of strings, suitable as arguments to\n\
2659 Fonts Emacs can't use may or may not be excluded\n\
2660 even if they match PATTERN and FACE.\n\
2661 The optional fourth argument MAXIMUM sets a limit on how many\n\
2662 fonts to match. The first MAXIMUM fonts are reported.\n\
2663 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2664 occupied by a character of a font. In that case, return only fonts\n\
2665 the WIDTH times as wide as FACE on FRAME.")
2666 (pattern
, face
, frame
, maximum
, width
)
2667 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2674 CHECK_STRING (pattern
, 0);
2680 CHECK_NATNUM (maximum
, 0);
2681 maxnames
= XINT (maximum
);
2685 CHECK_NUMBER (width
, 4);
2687 /* We can't simply call check_x_frame because this function may be
2688 called before any frame is created. */
2689 f
= frame_or_selected_frame (frame
, 2);
2690 if (!FRAME_WINDOW_P (f
))
2692 /* Perhaps we have not yet created any frame. */
2697 /* Determine the width standard for comparison with the fonts we find. */
2703 /* This is of limited utility since it works with character
2704 widths. Keep it for compatibility. --gerd. */
2705 int face_id
= lookup_named_face (f
, face
, 0);
2706 struct face
*face
= FACE_FROM_ID (f
, face_id
);
2709 size
= FONT_WIDTH (face
->font
);
2711 size
= FONT_WIDTH (FRAME_FONT (f
));
2714 size
*= XINT (width
);
2718 Lisp_Object args
[2];
2720 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2722 /* We don't have to check fontsets. */
2724 args
[1] = list_fontsets (f
, pattern
, size
);
2725 return Fnconc (2, args
);
2729 #endif /* HAVE_WINDOW_SYSTEM */
2733 /***********************************************************************
2735 ***********************************************************************/
2737 /* Access face attributes of face FACE, a Lisp vector. */
2739 #define LFACE_FAMILY(LFACE) \
2740 XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX]
2741 #define LFACE_HEIGHT(LFACE) \
2742 XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX]
2743 #define LFACE_WEIGHT(LFACE) \
2744 XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX]
2745 #define LFACE_SLANT(LFACE) \
2746 XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX]
2747 #define LFACE_UNDERLINE(LFACE) \
2748 XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX]
2749 #define LFACE_INVERSE(LFACE) \
2750 XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX]
2751 #define LFACE_FOREGROUND(LFACE) \
2752 XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX]
2753 #define LFACE_BACKGROUND(LFACE) \
2754 XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX]
2755 #define LFACE_STIPPLE(LFACE) \
2756 XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX]
2757 #define LFACE_SWIDTH(LFACE) \
2758 XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX]
2759 #define LFACE_OVERLINE(LFACE) \
2760 XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX]
2761 #define LFACE_STRIKE_THROUGH(LFACE) \
2762 XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX]
2763 #define LFACE_BOX(LFACE) \
2764 XVECTOR (LFACE)->contents[LFACE_BOX_INDEX]
2765 #define LFACE_FONT(LFACE) \
2766 XVECTOR (LFACE)->contents[LFACE_FONT_INDEX]
2767 #define LFACE_INHERIT(LFACE) \
2768 XVECTOR (LFACE)->contents[LFACE_INHERIT_INDEX]
2770 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2771 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2773 #define LFACEP(LFACE) \
2775 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2776 && EQ (XVECTOR (LFACE)->contents[0], Qface))
2781 /* Check consistency of Lisp face attribute vector ATTRS. */
2784 check_lface_attrs (attrs
)
2787 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2788 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2789 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2790 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2791 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2792 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
])
2793 || FLOATP (attrs
[LFACE_HEIGHT_INDEX
])
2794 || FUNCTIONP (attrs
[LFACE_HEIGHT_INDEX
]));
2795 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2796 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2797 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2798 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2799 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2800 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2801 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2802 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2803 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2804 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2805 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2806 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2807 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2808 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2809 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2810 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2811 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2812 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2813 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2814 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2815 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2816 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2817 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2818 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2819 xassert (UNSPECIFIEDP (attrs
[LFACE_INHERIT_INDEX
])
2820 || NILP (attrs
[LFACE_INHERIT_INDEX
])
2821 || SYMBOLP (attrs
[LFACE_INHERIT_INDEX
])
2822 || CONSP (attrs
[LFACE_INHERIT_INDEX
]));
2823 #ifdef HAVE_WINDOW_SYSTEM
2824 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2825 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2826 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2827 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2828 || NILP (attrs
[LFACE_FONT_INDEX
])
2829 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
2834 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2842 xassert (LFACEP (lface
));
2843 check_lface_attrs (XVECTOR (lface
)->contents
);
2847 #else /* GLYPH_DEBUG == 0 */
2849 #define check_lface_attrs(attrs) (void) 0
2850 #define check_lface(lface) (void) 0
2852 #endif /* GLYPH_DEBUG == 0 */
2855 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2856 to make it a symvol. If FACE_NAME is an alias for another face,
2857 return that face's name. */
2860 resolve_face_name (face_name
)
2861 Lisp_Object face_name
;
2863 Lisp_Object aliased
;
2865 if (STRINGP (face_name
))
2866 face_name
= intern (XSTRING (face_name
)->data
);
2870 aliased
= Fget (face_name
, Qface_alias
);
2874 face_name
= aliased
;
2881 /* Return the face definition of FACE_NAME on frame F. F null means
2882 return the global definition. FACE_NAME may be a string or a
2883 symbol (apparently Emacs 20.2 allows strings as face names in face
2884 text properties; ediff uses that). If FACE_NAME is an alias for
2885 another face, return that face's definition. If SIGNAL_P is
2886 non-zero, signal an error if FACE_NAME is not a valid face name.
2887 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2890 static INLINE Lisp_Object
2891 lface_from_face_name (f
, face_name
, signal_p
)
2893 Lisp_Object face_name
;
2898 face_name
= resolve_face_name (face_name
);
2901 lface
= assq_no_quit (face_name
, f
->face_alist
);
2903 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2906 lface
= XCDR (lface
);
2908 signal_error ("Invalid face", face_name
);
2910 check_lface (lface
);
2915 /* Get face attributes of face FACE_NAME from frame-local faces on
2916 frame F. Store the resulting attributes in ATTRS which must point
2917 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2918 is non-zero, signal an error if FACE_NAME does not name a face.
2919 Otherwise, value is zero if FACE_NAME is not a face. */
2922 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
2924 Lisp_Object face_name
;
2931 lface
= lface_from_face_name (f
, face_name
, signal_p
);
2934 bcopy (XVECTOR (lface
)->contents
, attrs
,
2935 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2945 /* Non-zero if all attributes in face attribute vector ATTRS are
2946 specified, i.e. are non-nil. */
2949 lface_fully_specified_p (attrs
)
2954 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2955 if (i
!= LFACE_FONT_INDEX
&& i
!= LFACE_INHERIT_INDEX
)
2956 if (UNSPECIFIEDP (attrs
[i
]))
2959 return i
== LFACE_VECTOR_SIZE
;
2962 #ifdef HAVE_WINDOW_SYSTEM
2964 /* Set font-related attributes of Lisp face LFACE from the fullname of
2965 the font opened by FONTNAME. If FORCE_P is zero, set only
2966 unspecified attributes of LFACE. The exception is `font'
2967 attribute. It is set to FONTNAME as is regardless of FORCE_P.
2969 If FONTNAME is not available on frame F,
2970 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
2971 If the fullname is not in a valid XLFD format,
2972 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
2973 in LFACE and return 1.
2974 Otherwise, return 1. */
2977 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
2980 Lisp_Object fontname
;
2981 int force_p
, may_fail_p
;
2983 struct font_name font
;
2988 char *font_name
= XSTRING (fontname
)->data
;
2989 struct font_info
*font_info
;
2991 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
2992 fontset
= fs_query_fontset (fontname
, 0);
2994 font_name
= XSTRING (fontset_ascii (fontset
))->data
;
2996 /* Check if FONT_NAME is surely available on the system. Usually
2997 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
2998 returns quickly. But, even if FONT_NAME is not yet cached,
2999 caching it now is not futail because we anyway load the font
3002 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
3012 font
.name
= STRDUPA (font_info
->full_name
);
3013 have_xlfd_p
= split_font_name (f
, &font
, 1);
3015 /* Set attributes only if unspecified, otherwise face defaults for
3016 new frames would never take effect. If we couldn't get a font
3017 name conforming to XLFD, set normal values. */
3019 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
3024 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
3025 + strlen (font
.fields
[XLFD_FOUNDRY
])
3027 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3028 font
.fields
[XLFD_FAMILY
]);
3029 val
= build_string (buffer
);
3032 val
= build_string ("*");
3033 LFACE_FAMILY (lface
) = val
;
3036 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3039 pt
= xlfd_point_size (f
, &font
);
3041 pt
= pixel_point_size (f
, font_info
->height
* 10);
3043 LFACE_HEIGHT (lface
) = make_number (pt
);
3046 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3047 LFACE_SWIDTH (lface
)
3048 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3050 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3051 LFACE_WEIGHT (lface
)
3052 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3054 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3056 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3058 LFACE_FONT (lface
) = fontname
;
3062 #endif /* HAVE_WINDOW_SYSTEM */
3065 /* Merges the face height FROM with the face height TO, and returns the
3066 merged height. If FROM is an invalid height, then INVALID is
3067 returned instead. FROM may be a either an absolute face height or a
3068 `relative' height, and TO must be an absolute height. The returned
3069 value is always an absolute height. GCPRO is a lisp value that will
3070 be protected from garbage-collection if this function makes a call
3074 merge_face_heights (from
, to
, invalid
, gcpro
)
3075 Lisp_Object from
, to
, invalid
, gcpro
;
3079 if (INTEGERP (from
))
3080 result
= XINT (from
);
3081 else if (NUMBERP (from
))
3082 result
= XFLOATINT (from
) * XINT (to
);
3083 #if 0 /* Probably not so useful. */
3084 else if (CONSP (from
) && CONSP (XCDR (from
)))
3086 if (EQ (XCAR(from
), Qplus
) || EQ (XCAR(from
), Qminus
))
3088 if (INTEGERP (XCAR (XCDR (from
))))
3090 int inc
= XINT (XCAR (XCDR (from
)));
3091 if (EQ (XCAR (from
), Qminus
))
3094 result
= XFASTINT (to
);
3095 if (result
+ inc
> 0)
3096 /* Note that `underflows' don't mean FROM is invalid, so
3097 we just pin the result at TO if it would otherwise be
3104 else if (FUNCTIONP (from
))
3106 /* Call function with current height as argument.
3107 From is the new height. */
3108 Lisp_Object args
[2], height
;
3109 struct gcpro gcpro1
;
3115 height
= call_function (2, args
);
3119 if (NUMBERP (height
))
3120 result
= XFLOATINT (height
);
3124 return make_number (result
);
3130 /* Merge two Lisp face attribute vectors on frame F, FROM and TO, and
3131 store the resulting attributes in TO. Every non-nil attribute of
3132 FROM overrides the corresponding attribute of TO. CYCLE_CHECK is
3133 used internally to detect loops in face inheritance; it should be
3134 Qnil when called from other places. */
3137 merge_face_vectors (f
, from
, to
, cycle_check
)
3139 Lisp_Object
*from
, *to
;
3140 Lisp_Object cycle_check
;
3144 /* If FROM inherits from some other faces, merge their attributes into
3145 TO before merging FROM's direct attributes. Note that an :inherit
3146 attribute of `unspecified' is the same as one of nil; we never
3147 merge :inherit attributes, so nil is more correct, but lots of
3148 other code uses `unspecified' as a generic value for face attributes. */
3149 if (!UNSPECIFIEDP (from
[LFACE_INHERIT_INDEX
])
3150 && !NILP (from
[LFACE_INHERIT_INDEX
]))
3151 merge_face_inheritance (f
, from
[LFACE_INHERIT_INDEX
], to
, cycle_check
);
3153 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3154 if (!UNSPECIFIEDP (from
[i
]))
3155 if (i
== LFACE_HEIGHT_INDEX
&& !INTEGERP (from
[i
]))
3156 to
[i
] = merge_face_heights (from
[i
], to
[i
], to
[i
], cycle_check
);
3160 /* TO is always an absolute face, which should inherit from nothing.
3161 We blindly copy the :inherit attribute above and fix it up here. */
3162 to
[LFACE_INHERIT_INDEX
] = Qnil
;
3166 /* Checks the `cycle check' variable CHECK to see if it indicates that
3167 EL is part of a cycle; CHECK must be either Qnil or a value returned
3168 by an earlier use of CYCLE_CHECK. SUSPICIOUS is the number of
3169 elements after which a cycle might be suspected; after that many
3170 elements, this macro begins consing in order to keep more precise
3173 Returns NIL if a cycle was detected, otherwise a new value for CHECK
3176 CHECK is evaluated multiple times, EL and SUSPICIOUS 0 or 1 times, so
3177 the caller should make sure that's ok. */
3179 #define CYCLE_CHECK(check, el, suspicious) \
3182 : INTEGERP (check) \
3183 ? (XFASTINT (check) < (suspicious) \
3184 ? make_number (XFASTINT (check) + 1) \
3185 : Fcons (el, Qnil)) \
3186 : Fmemq ((el), (check)) \
3188 : Fcons ((el), (check)))
3191 merge_face_inheritance (f
, inherit
, to
, cycle_check
)
3193 Lisp_Object inherit
;
3195 Lisp_Object cycle_check
;
3197 if (SYMBOLP (inherit
) && !EQ (inherit
, Qunspecified
))
3198 /* Inherit from the named face INHERIT. */
3202 /* Make sure we're not in an inheritance loop. */
3203 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3204 if (NILP (cycle_check
))
3205 /* Cycle detected, ignore any further inheritance. */
3208 lface
= lface_from_face_name (f
, inherit
, 0);
3210 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, cycle_check
);
3212 else if (CONSP (inherit
))
3213 /* Handle a list of inherited faces by calling ourselves recursively
3214 on each element. Note that we only do so for symbol elements, so
3215 it's not possible to infinitely recurse. */
3217 while (CONSP (inherit
))
3219 if (SYMBOLP (XCAR (inherit
)))
3220 merge_face_inheritance (f
, XCAR (inherit
), to
, cycle_check
);
3222 /* Check for a circular inheritance list. */
3223 cycle_check
= CYCLE_CHECK (cycle_check
, inherit
, 15);
3224 if (NILP (cycle_check
))
3225 /* Cycle detected. */
3228 inherit
= XCDR (inherit
);
3234 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3235 is a face property, determine the resulting face attributes on
3236 frame F, and store them in TO. PROP may be a single face
3237 specification or a list of such specifications. Each face
3238 specification can be
3240 1. A symbol or string naming a Lisp face.
3242 2. A property list of the form (KEYWORD VALUE ...) where each
3243 KEYWORD is a face attribute name, and value is an appropriate value
3246 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3247 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3248 for compatibility with 20.2.
3250 Face specifications earlier in lists take precedence over later
3254 merge_face_vector_with_property (f
, to
, prop
)
3261 Lisp_Object first
= XCAR (prop
);
3263 if (EQ (first
, Qforeground_color
)
3264 || EQ (first
, Qbackground_color
))
3266 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3267 . COLOR). COLOR must be a string. */
3268 Lisp_Object color_name
= XCDR (prop
);
3269 Lisp_Object color
= first
;
3271 if (STRINGP (color_name
))
3273 if (EQ (color
, Qforeground_color
))
3274 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3276 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3279 add_to_log ("Invalid face color", color_name
, Qnil
);
3281 else if (SYMBOLP (first
)
3282 && *XSYMBOL (first
)->name
->data
== ':')
3284 /* Assume this is the property list form. */
3285 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3287 Lisp_Object keyword
= XCAR (prop
);
3288 Lisp_Object value
= XCAR (XCDR (prop
));
3290 if (EQ (keyword
, QCfamily
))
3292 if (STRINGP (value
))
3293 to
[LFACE_FAMILY_INDEX
] = value
;
3295 add_to_log ("Invalid face font family", value
, Qnil
);
3297 else if (EQ (keyword
, QCheight
))
3299 Lisp_Object new_height
=
3300 merge_face_heights (value
, to
[LFACE_HEIGHT_INDEX
],
3303 if (NILP (new_height
))
3304 add_to_log ("Invalid face font height", value
, Qnil
);
3306 to
[LFACE_HEIGHT_INDEX
] = new_height
;
3308 else if (EQ (keyword
, QCweight
))
3311 && face_numeric_weight (value
) >= 0)
3312 to
[LFACE_WEIGHT_INDEX
] = value
;
3314 add_to_log ("Invalid face weight", value
, Qnil
);
3316 else if (EQ (keyword
, QCslant
))
3319 && face_numeric_slant (value
) >= 0)
3320 to
[LFACE_SLANT_INDEX
] = value
;
3322 add_to_log ("Invalid face slant", value
, Qnil
);
3324 else if (EQ (keyword
, QCunderline
))
3329 to
[LFACE_UNDERLINE_INDEX
] = value
;
3331 add_to_log ("Invalid face underline", value
, Qnil
);
3333 else if (EQ (keyword
, QCoverline
))
3338 to
[LFACE_OVERLINE_INDEX
] = value
;
3340 add_to_log ("Invalid face overline", value
, Qnil
);
3342 else if (EQ (keyword
, QCstrike_through
))
3347 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3349 add_to_log ("Invalid face strike-through", value
, Qnil
);
3351 else if (EQ (keyword
, QCbox
))
3354 value
= make_number (1);
3355 if (INTEGERP (value
)
3359 to
[LFACE_BOX_INDEX
] = value
;
3361 add_to_log ("Invalid face box", value
, Qnil
);
3363 else if (EQ (keyword
, QCinverse_video
)
3364 || EQ (keyword
, QCreverse_video
))
3366 if (EQ (value
, Qt
) || NILP (value
))
3367 to
[LFACE_INVERSE_INDEX
] = value
;
3369 add_to_log ("Invalid face inverse-video", value
, Qnil
);
3371 else if (EQ (keyword
, QCforeground
))
3373 if (STRINGP (value
))
3374 to
[LFACE_FOREGROUND_INDEX
] = value
;
3376 add_to_log ("Invalid face foreground", value
, Qnil
);
3378 else if (EQ (keyword
, QCbackground
))
3380 if (STRINGP (value
))
3381 to
[LFACE_BACKGROUND_INDEX
] = value
;
3383 add_to_log ("Invalid face background", value
, Qnil
);
3385 else if (EQ (keyword
, QCstipple
))
3387 #ifdef HAVE_X_WINDOWS
3388 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3389 if (!NILP (pixmap_p
))
3390 to
[LFACE_STIPPLE_INDEX
] = value
;
3392 add_to_log ("Invalid face stipple", value
, Qnil
);
3395 else if (EQ (keyword
, QCwidth
))
3398 && face_numeric_swidth (value
) >= 0)
3399 to
[LFACE_SWIDTH_INDEX
] = value
;
3401 add_to_log ("Invalid face width", value
, Qnil
);
3403 else if (EQ (keyword
, QCinherit
))
3405 if (SYMBOLP (value
))
3406 to
[LFACE_INHERIT_INDEX
] = value
;
3410 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3411 if (!SYMBOLP (XCAR (tail
)))
3414 to
[LFACE_INHERIT_INDEX
] = value
;
3416 add_to_log ("Invalid face inherit", value
, Qnil
);
3420 add_to_log ("Invalid attribute %s in face property",
3423 prop
= XCDR (XCDR (prop
));
3428 /* This is a list of face specs. Specifications at the
3429 beginning of the list take precedence over later
3430 specifications, so we have to merge starting with the
3431 last specification. */
3432 Lisp_Object next
= XCDR (prop
);
3434 merge_face_vector_with_property (f
, to
, next
);
3435 merge_face_vector_with_property (f
, to
, first
);
3440 /* PROP ought to be a face name. */
3441 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3443 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3445 merge_face_vectors (f
, XVECTOR (lface
)->contents
, to
, Qnil
);
3450 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3451 Sinternal_make_lisp_face
, 1, 2, 0,
3452 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3453 If FACE was not known as a face before, create a new one.\n\
3454 If optional argument FRAME is specified, make a frame-local face\n\
3455 for that frame. Otherwise operate on the global face definition.\n\
3456 Value is a vector of face attributes.")
3458 Lisp_Object face
, frame
;
3460 Lisp_Object global_lface
, lface
;
3464 CHECK_SYMBOL (face
, 0);
3465 global_lface
= lface_from_face_name (NULL
, face
, 0);
3469 CHECK_LIVE_FRAME (frame
, 1);
3471 lface
= lface_from_face_name (f
, face
, 0);
3474 f
= NULL
, lface
= Qnil
;
3476 /* Add a global definition if there is none. */
3477 if (NILP (global_lface
))
3479 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3481 XVECTOR (global_lface
)->contents
[0] = Qface
;
3482 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3483 Vface_new_frame_defaults
);
3485 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3486 face id to Lisp face is given by the vector lface_id_to_name.
3487 The mapping from Lisp face to Lisp face id is given by the
3488 property `face' of the Lisp face name. */
3489 if (next_lface_id
== lface_id_to_name_size
)
3491 int new_size
= max (50, 2 * lface_id_to_name_size
);
3492 int sz
= new_size
* sizeof *lface_id_to_name
;
3493 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3494 lface_id_to_name_size
= new_size
;
3497 lface_id_to_name
[next_lface_id
] = face
;
3498 Fput (face
, Qface
, make_number (next_lface_id
));
3502 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3503 XVECTOR (global_lface
)->contents
[i
] = Qunspecified
;
3505 /* Add a frame-local definition. */
3510 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3512 XVECTOR (lface
)->contents
[0] = Qface
;
3513 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3516 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3517 XVECTOR (lface
)->contents
[i
] = Qunspecified
;
3520 lface
= global_lface
;
3522 xassert (LFACEP (lface
));
3523 check_lface (lface
);
3528 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3529 Sinternal_lisp_face_p
, 1, 2, 0,
3530 "Return non-nil if FACE names a face.\n\
3531 If optional second parameter FRAME is non-nil, check for the\n\
3532 existence of a frame-local face with name FACE on that frame.\n\
3533 Otherwise check for the existence of a global face.")
3535 Lisp_Object face
, frame
;
3541 CHECK_LIVE_FRAME (frame
, 1);
3542 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3545 lface
= lface_from_face_name (NULL
, face
, 0);
3551 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3552 Sinternal_copy_lisp_face
, 4, 4, 0,
3553 "Copy face FROM to TO.\n\
3554 If FRAME it t, copy the global face definition of FROM to the\n\
3555 global face definition of TO. Otherwise, copy the frame-local\n\
3556 definition of FROM on FRAME to the frame-local definition of TO\n\
3557 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3560 (from
, to
, frame
, new_frame
)
3561 Lisp_Object from
, to
, frame
, new_frame
;
3563 Lisp_Object lface
, copy
;
3565 CHECK_SYMBOL (from
, 0);
3566 CHECK_SYMBOL (to
, 1);
3567 if (NILP (new_frame
))
3572 /* Copy global definition of FROM. We don't make copies of
3573 strings etc. because 20.2 didn't do it either. */
3574 lface
= lface_from_face_name (NULL
, from
, 1);
3575 copy
= Finternal_make_lisp_face (to
, Qnil
);
3579 /* Copy frame-local definition of FROM. */
3580 CHECK_LIVE_FRAME (frame
, 2);
3581 CHECK_LIVE_FRAME (new_frame
, 3);
3582 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3583 copy
= Finternal_make_lisp_face (to
, new_frame
);
3586 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3587 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3593 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3594 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3595 "Set attribute ATTR of FACE to VALUE.\n\
3596 If optional argument FRAME is given, set the face attribute of face FACE\n\
3597 on that frame. If FRAME is t, set the attribute of the default for face\n\
3598 FACE (for new frames). If FRAME is omitted or nil, use the selected\n\
3600 (face
, attr
, value
, frame
)
3601 Lisp_Object face
, attr
, value
, frame
;
3604 Lisp_Object old_value
= Qnil
;
3605 /* Set 1 if ATTR is QCfont. */
3606 int font_attr_p
= 0;
3607 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3608 int font_related_attr_p
= 0;
3610 CHECK_SYMBOL (face
, 0);
3611 CHECK_SYMBOL (attr
, 1);
3613 face
= resolve_face_name (face
);
3615 /* Set lface to the Lisp attribute vector of FACE. */
3617 lface
= lface_from_face_name (NULL
, face
, 1);
3621 frame
= selected_frame
;
3623 CHECK_LIVE_FRAME (frame
, 3);
3624 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3626 /* If a frame-local face doesn't exist yet, create one. */
3628 lface
= Finternal_make_lisp_face (face
, frame
);
3631 if (EQ (attr
, QCfamily
))
3633 if (!UNSPECIFIEDP (value
))
3635 CHECK_STRING (value
, 3);
3636 if (XSTRING (value
)->size
== 0)
3637 signal_error ("Invalid face family", value
);
3639 old_value
= LFACE_FAMILY (lface
);
3640 LFACE_FAMILY (lface
) = value
;
3641 font_related_attr_p
= 1;
3643 else if (EQ (attr
, QCheight
))
3645 if (!UNSPECIFIEDP (value
))
3647 Lisp_Object test
= Qnil
;
3649 if (!EQ (face
, Qdefault
))
3650 /* The default face must have an absolute size, otherwise, we do
3651 a test merge with a random height to see if VALUE's ok. */
3652 test
= merge_face_heights (value
, make_number(10), Qnil
, Qnil
);
3654 if (!INTEGERP(test
) || XINT(test
) <= 0)
3655 signal_error ("Invalid face height", value
);
3658 old_value
= LFACE_HEIGHT (lface
);
3659 LFACE_HEIGHT (lface
) = value
;
3660 font_related_attr_p
= 1;
3662 else if (EQ (attr
, QCweight
))
3664 if (!UNSPECIFIEDP (value
))
3666 CHECK_SYMBOL (value
, 3);
3667 if (face_numeric_weight (value
) < 0)
3668 signal_error ("Invalid face weight", value
);
3670 old_value
= LFACE_WEIGHT (lface
);
3671 LFACE_WEIGHT (lface
) = value
;
3672 font_related_attr_p
= 1;
3674 else if (EQ (attr
, QCslant
))
3676 if (!UNSPECIFIEDP (value
))
3678 CHECK_SYMBOL (value
, 3);
3679 if (face_numeric_slant (value
) < 0)
3680 signal_error ("Invalid face slant", value
);
3682 old_value
= LFACE_SLANT (lface
);
3683 LFACE_SLANT (lface
) = value
;
3684 font_related_attr_p
= 1;
3686 else if (EQ (attr
, QCunderline
))
3688 if (!UNSPECIFIEDP (value
))
3689 if ((SYMBOLP (value
)
3691 && !EQ (value
, Qnil
))
3692 /* Underline color. */
3694 && XSTRING (value
)->size
== 0))
3695 signal_error ("Invalid face underline", value
);
3697 old_value
= LFACE_UNDERLINE (lface
);
3698 LFACE_UNDERLINE (lface
) = value
;
3700 else if (EQ (attr
, QCoverline
))
3702 if (!UNSPECIFIEDP (value
))
3703 if ((SYMBOLP (value
)
3705 && !EQ (value
, Qnil
))
3706 /* Overline color. */
3708 && XSTRING (value
)->size
== 0))
3709 signal_error ("Invalid face overline", value
);
3711 old_value
= LFACE_OVERLINE (lface
);
3712 LFACE_OVERLINE (lface
) = value
;
3714 else if (EQ (attr
, QCstrike_through
))
3716 if (!UNSPECIFIEDP (value
))
3717 if ((SYMBOLP (value
)
3719 && !EQ (value
, Qnil
))
3720 /* Strike-through color. */
3722 && XSTRING (value
)->size
== 0))
3723 signal_error ("Invalid face strike-through", value
);
3725 old_value
= LFACE_STRIKE_THROUGH (lface
);
3726 LFACE_STRIKE_THROUGH (lface
) = value
;
3728 else if (EQ (attr
, QCbox
))
3732 /* Allow t meaning a simple box of width 1 in foreground color
3735 value
= make_number (1);
3737 if (UNSPECIFIEDP (value
))
3739 else if (NILP (value
))
3741 else if (INTEGERP (value
))
3742 valid_p
= XINT (value
) > 0;
3743 else if (STRINGP (value
))
3744 valid_p
= XSTRING (value
)->size
> 0;
3745 else if (CONSP (value
))
3761 if (EQ (k
, QCline_width
))
3763 if (!INTEGERP (v
) || XINT (v
) <= 0)
3766 else if (EQ (k
, QCcolor
))
3768 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3771 else if (EQ (k
, QCstyle
))
3773 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3780 valid_p
= NILP (tem
);
3786 signal_error ("Invalid face box", value
);
3788 old_value
= LFACE_BOX (lface
);
3789 LFACE_BOX (lface
) = value
;
3791 else if (EQ (attr
, QCinverse_video
)
3792 || EQ (attr
, QCreverse_video
))
3794 if (!UNSPECIFIEDP (value
))
3796 CHECK_SYMBOL (value
, 3);
3797 if (!EQ (value
, Qt
) && !NILP (value
))
3798 signal_error ("Invalid inverse-video face attribute value", value
);
3800 old_value
= LFACE_INVERSE (lface
);
3801 LFACE_INVERSE (lface
) = value
;
3803 else if (EQ (attr
, QCforeground
))
3805 if (!UNSPECIFIEDP (value
))
3807 /* Don't check for valid color names here because it depends
3808 on the frame (display) whether the color will be valid
3809 when the face is realized. */
3810 CHECK_STRING (value
, 3);
3811 if (XSTRING (value
)->size
== 0)
3812 signal_error ("Empty foreground color value", value
);
3814 old_value
= LFACE_FOREGROUND (lface
);
3815 LFACE_FOREGROUND (lface
) = value
;
3817 else if (EQ (attr
, QCbackground
))
3819 if (!UNSPECIFIEDP (value
))
3821 /* Don't check for valid color names here because it depends
3822 on the frame (display) whether the color will be valid
3823 when the face is realized. */
3824 CHECK_STRING (value
, 3);
3825 if (XSTRING (value
)->size
== 0)
3826 signal_error ("Empty background color value", value
);
3828 old_value
= LFACE_BACKGROUND (lface
);
3829 LFACE_BACKGROUND (lface
) = value
;
3831 else if (EQ (attr
, QCstipple
))
3833 #ifdef HAVE_X_WINDOWS
3834 if (!UNSPECIFIEDP (value
)
3836 && NILP (Fbitmap_spec_p (value
)))
3837 signal_error ("Invalid stipple attribute", value
);
3838 old_value
= LFACE_STIPPLE (lface
);
3839 LFACE_STIPPLE (lface
) = value
;
3840 #endif /* HAVE_X_WINDOWS */
3842 else if (EQ (attr
, QCwidth
))
3844 if (!UNSPECIFIEDP (value
))
3846 CHECK_SYMBOL (value
, 3);
3847 if (face_numeric_swidth (value
) < 0)
3848 signal_error ("Invalid face width", value
);
3850 old_value
= LFACE_SWIDTH (lface
);
3851 LFACE_SWIDTH (lface
) = value
;
3852 font_related_attr_p
= 1;
3854 else if (EQ (attr
, QCfont
))
3856 #ifdef HAVE_WINDOW_SYSTEM
3857 /* Set font-related attributes of the Lisp face from an
3862 CHECK_STRING (value
, 3);
3864 f
= SELECTED_FRAME ();
3866 f
= check_x_frame (frame
);
3868 /* VALUE may be a fontset name or an alias of fontset. In such
3869 a case, use the base fontset name. */
3870 tmp
= Fquery_fontset (value
, Qnil
);
3874 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
3875 signal_error ("Invalid font or fontset name", value
);
3878 #endif /* HAVE_WINDOW_SYSTEM */
3880 else if (EQ (attr
, QCinherit
))
3883 if (SYMBOLP (value
))
3886 for (tail
= value
; CONSP (tail
); tail
= XCDR (tail
))
3887 if (!SYMBOLP (XCAR (tail
)))
3890 LFACE_INHERIT (lface
) = value
;
3892 signal_error ("Invalid face inheritance", value
);
3894 else if (EQ (attr
, QCbold
))
3896 old_value
= LFACE_WEIGHT (lface
);
3897 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3898 font_related_attr_p
= 1;
3900 else if (EQ (attr
, QCitalic
))
3902 old_value
= LFACE_SLANT (lface
);
3903 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3904 font_related_attr_p
= 1;
3907 signal_error ("Invalid face attribute name", attr
);
3909 if (font_related_attr_p
3910 && !UNSPECIFIEDP (value
))
3911 /* If a font-related attribute other than QCfont is specified, the
3912 original `font' attribute nor that of default face is useless
3913 to determine a new font. Thus, we set it to nil so that font
3914 selection mechanism doesn't use it. */
3915 LFACE_FONT (lface
) = Qnil
;
3917 /* Changing a named face means that all realized faces depending on
3918 that face are invalid. Since we cannot tell which realized faces
3919 depend on the face, make sure they are all removed. This is done
3920 by incrementing face_change_count. The next call to
3921 init_iterator will then free realized faces. */
3923 && (EQ (attr
, QCfont
)
3924 || NILP (Fequal (old_value
, value
))))
3926 ++face_change_count
;
3927 ++windows_or_buffers_changed
;
3930 #ifdef HAVE_WINDOW_SYSTEM
3933 && !UNSPECIFIEDP (value
)
3934 && NILP (Fequal (old_value
, value
)))
3940 if (EQ (face
, Qdefault
))
3942 /* Changed font-related attributes of the `default' face are
3943 reflected in changed `font' frame parameters. */
3944 if ((font_related_attr_p
|| font_attr_p
)
3945 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3946 set_font_frame_param (frame
, lface
);
3947 else if (EQ (attr
, QCforeground
))
3948 param
= Qforeground_color
;
3949 else if (EQ (attr
, QCbackground
))
3950 param
= Qbackground_color
;
3953 else if (EQ (face
, Qscroll_bar
))
3955 /* Changing the colors of `scroll-bar' sets frame parameters
3956 `scroll-bar-foreground' and `scroll-bar-background'. */
3957 if (EQ (attr
, QCforeground
))
3958 param
= Qscroll_bar_foreground
;
3959 else if (EQ (attr
, QCbackground
))
3960 param
= Qscroll_bar_background
;
3963 else if (EQ (face
, Qborder
))
3965 /* Changing background color of `border' sets frame parameter
3967 if (EQ (attr
, QCbackground
))
3968 param
= Qborder_color
;
3970 else if (EQ (face
, Qcursor
))
3972 /* Changing background color of `cursor' sets frame parameter
3974 if (EQ (attr
, QCbackground
))
3975 param
= Qcursor_color
;
3977 else if (EQ (face
, Qmouse
))
3979 /* Changing background color of `mouse' sets frame parameter
3981 if (EQ (attr
, QCbackground
))
3982 param
= Qmouse_color
;
3986 Fmodify_frame_parameters (frame
, Fcons (Fcons (param
, value
), Qnil
));
3989 #endif /* HAVE_WINDOW_SYSTEM */
3995 #ifdef HAVE_WINDOW_SYSTEM
3997 /* Set the `font' frame parameter of FRAME determined from `default'
3998 face attributes LFACE. If a face or fontset name is explicitely
3999 specfied in LFACE, use it as is. Otherwise, determine a font name
4000 from the other font-related atrributes of LFACE. In that case, if
4001 there's no matching font, signals an error. */
4004 set_font_frame_param (frame
, lface
)
4005 Lisp_Object frame
, lface
;
4007 struct frame
*f
= XFRAME (frame
);
4008 Lisp_Object font_name
;
4011 if (STRINGP (LFACE_FONT (lface
)))
4012 font_name
= LFACE_FONT (lface
);
4015 /* Choose a font name that reflects LFACE's attributes and has
4016 the registry and encoding pattern specified in the default
4017 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
4018 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0);
4020 error ("No font matches the specified attribute");
4021 font_name
= build_string (font
);
4024 store_frame_param (f
, Qfont
, font_name
);
4028 /* Update the corresponding face when frame parameter PARAM on frame F
4029 has been assigned the value NEW_VALUE. */
4032 update_face_from_frame_parameter (f
, param
, new_value
)
4034 Lisp_Object param
, new_value
;
4038 /* If there are no faces yet, give up. This is the case when called
4039 from Fx_create_frame, and we do the necessary things later in
4040 face-set-after-frame-defaults. */
4041 if (NILP (f
->face_alist
))
4044 if (EQ (param
, Qforeground_color
))
4046 lface
= lface_from_face_name (f
, Qdefault
, 1);
4047 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
4048 ? new_value
: Qunspecified
);
4049 realize_basic_faces (f
);
4051 else if (EQ (param
, Qbackground_color
))
4055 /* Changing the background color might change the background
4056 mode, so that we have to load new defface specs. Call
4057 frame-update-face-colors to do that. */
4058 XSETFRAME (frame
, f
);
4059 call1 (Qframe_update_face_colors
, frame
);
4061 lface
= lface_from_face_name (f
, Qdefault
, 1);
4062 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4063 ? new_value
: Qunspecified
);
4064 realize_basic_faces (f
);
4066 if (EQ (param
, Qborder_color
))
4068 lface
= lface_from_face_name (f
, Qborder
, 1);
4069 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4070 ? new_value
: Qunspecified
);
4072 else if (EQ (param
, Qcursor_color
))
4074 lface
= lface_from_face_name (f
, Qcursor
, 1);
4075 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4076 ? new_value
: Qunspecified
);
4078 else if (EQ (param
, Qmouse_color
))
4080 lface
= lface_from_face_name (f
, Qmouse
, 1);
4081 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
4082 ? new_value
: Qunspecified
);
4087 /* Get the value of X resource RESOURCE, class CLASS for the display
4088 of frame FRAME. This is here because ordinary `x-get-resource'
4089 doesn't take a frame argument. */
4091 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
4092 Sinternal_face_x_get_resource
, 3, 3, 0, "")
4093 (resource
, class, frame
)
4094 Lisp_Object resource
, class, frame
;
4096 Lisp_Object value
= Qnil
;
4098 CHECK_STRING (resource
, 0);
4099 CHECK_STRING (class, 1);
4100 CHECK_LIVE_FRAME (frame
, 2);
4102 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
4103 resource
, class, Qnil
, Qnil
);
4110 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
4111 If VALUE is "on" or "true", return t. If VALUE is "off" or
4112 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
4113 error; if SIGNAL_P is zero, return 0. */
4116 face_boolean_x_resource_value (value
, signal_p
)
4120 Lisp_Object result
= make_number (0);
4122 xassert (STRINGP (value
));
4124 if (xstricmp (XSTRING (value
)->data
, "on") == 0
4125 || xstricmp (XSTRING (value
)->data
, "true") == 0)
4127 else if (xstricmp (XSTRING (value
)->data
, "off") == 0
4128 || xstricmp (XSTRING (value
)->data
, "false") == 0)
4130 else if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
4131 result
= Qunspecified
;
4133 signal_error ("Invalid face attribute value from X resource", value
);
4139 DEFUN ("internal-set-lisp-face-attribute-from-resource",
4140 Finternal_set_lisp_face_attribute_from_resource
,
4141 Sinternal_set_lisp_face_attribute_from_resource
,
4143 (face
, attr
, value
, frame
)
4144 Lisp_Object face
, attr
, value
, frame
;
4146 CHECK_SYMBOL (face
, 0);
4147 CHECK_SYMBOL (attr
, 1);
4148 CHECK_STRING (value
, 2);
4150 if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
4151 value
= Qunspecified
;
4152 else if (EQ (attr
, QCheight
))
4154 value
= Fstring_to_number (value
, make_number (10));
4155 if (XINT (value
) <= 0)
4156 signal_error ("Invalid face height from X resource", value
);
4158 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
4159 value
= face_boolean_x_resource_value (value
, 1);
4160 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
4161 value
= intern (XSTRING (value
)->data
);
4162 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
4163 value
= face_boolean_x_resource_value (value
, 1);
4164 else if (EQ (attr
, QCunderline
)
4165 || EQ (attr
, QCoverline
)
4166 || EQ (attr
, QCstrike_through
)
4167 || EQ (attr
, QCbox
))
4169 Lisp_Object boolean_value
;
4171 /* If the result of face_boolean_x_resource_value is t or nil,
4172 VALUE does NOT specify a color. */
4173 boolean_value
= face_boolean_x_resource_value (value
, 0);
4174 if (SYMBOLP (boolean_value
))
4175 value
= boolean_value
;
4178 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
4181 #endif /* HAVE_WINDOW_SYSTEM */
4184 #ifdef HAVE_X_WINDOWS
4185 /***********************************************************************
4187 ***********************************************************************/
4189 #ifdef USE_X_TOOLKIT
4191 #include "../lwlib/lwlib-utils.h"
4193 /* Structure used to pass X resources to functions called via
4194 XtApplyToWidgets. */
4205 static void xm_apply_resources
P_ ((Widget
, XtPointer
));
4206 static void xm_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
4209 /* Set widget W's X resources from P which points to an x_resources
4210 structure. If W is a cascade button, apply resources to W's
4214 xm_apply_resources (w
, p
)
4219 struct x_resources
*res
= (struct x_resources
*) p
;
4221 XtSetValues (w
, res
->av
, res
->ac
);
4222 XtVaGetValues (w
, XmNsubMenuId
, &submenu
, NULL
);
4225 XtSetValues (submenu
, res
->av
, res
->ac
);
4226 XtApplyToWidgets (submenu
, xm_apply_resources
, p
);
4231 /* Set X resources of menu-widget WIDGET on frame F from face `menu'.
4232 This is the LessTif/Motif version. As of LessTif 0.88 it has the
4235 1. Setting the XmNfontList resource leads to an infinite loop
4236 somewhere in LessTif. */
4239 xm_set_menu_resources_from_menu_face (f
, widget
)
4249 lface
= lface_from_face_name (f
, Qmenu
, 1);
4250 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4252 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4254 XtSetArg (av
[ac
], XmNforeground
, face
->foreground
);
4258 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4260 XtSetArg (av
[ac
], XmNbackground
, face
->background
);
4264 /* If any font-related attribute of `menu' is set, set the font. */
4266 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4267 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4268 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4269 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4270 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4272 #if 0 /* Setting the font leads to an infinite loop somewhere
4273 in LessTif during geometry computation. */
4275 fe
= XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT
, face
->font
);
4276 fl
= XmFontListAppendEntry (NULL
, fe
);
4277 XtSetArg (av
[ac
], XmNfontList
, fl
);
4282 xassert (ac
<= sizeof av
/ sizeof *av
);
4286 struct x_resources res
;
4288 XtSetValues (widget
, av
, ac
);
4289 res
.av
= av
, res
.ac
= ac
;
4290 XtApplyToWidgets (widget
, xm_apply_resources
, &res
);
4292 XmFontListFree (fl
);
4297 #endif /* USE_MOTIF */
4301 static void xl_apply_resources
P_ ((Widget
, XtPointer
));
4302 static void xl_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
4305 /* Set widget W's resources from P which points to an x_resources
4309 xl_apply_resources (widget
, p
)
4313 struct x_resources
*res
= (struct x_resources
*) p
;
4314 XtSetValues (widget
, res
->av
, res
->ac
);
4318 /* On frame F, set X resources of menu-widget WIDGET from face `menu'.
4319 This is the Lucid version. */
4322 xl_set_menu_resources_from_menu_face (f
, widget
)
4331 lface
= lface_from_face_name (f
, Qmenu
, 1);
4332 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4334 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4336 XtSetArg (av
[ac
], XtNforeground
, face
->foreground
);
4340 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4342 XtSetArg (av
[ac
], XtNbackground
, face
->background
);
4347 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4348 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4349 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4350 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4351 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4353 XtSetArg (av
[ac
], XtNfont
, face
->font
);
4359 struct x_resources res
;
4361 XtSetValues (widget
, av
, ac
);
4363 /* We must do children here in case we're handling a pop-up menu
4364 in which case WIDGET is a popup shell. XtApplyToWidgets
4365 is a function from lwlib. */
4366 res
.av
= av
, res
.ac
= ac
;
4367 XtApplyToWidgets (widget
, xl_apply_resources
, &res
);
4371 #endif /* USE_LUCID */
4374 /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */
4377 x_set_menu_resources_from_menu_face (f
, widget
)
4381 /* Realized faces may have been removed on frame F, e.g. because of
4382 face attribute changes. Recompute them, if necessary, since we
4383 will need the `menu' face. */
4384 if (f
->face_cache
->used
== 0)
4385 recompute_basic_faces (f
);
4388 xl_set_menu_resources_from_menu_face (f
, widget
);
4391 xm_set_menu_resources_from_menu_face (f
, widget
);
4395 #endif /* USE_X_TOOLKIT */
4397 #endif /* HAVE_X_WINDOWS */
4401 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4402 Sinternal_get_lisp_face_attribute
,
4404 "Return face attribute KEYWORD of face SYMBOL.\n\
4405 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
4406 face attribute name, signal an error.\n\
4407 If the optional argument FRAME is given, report on face FACE in that\n\
4408 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
4409 frames). If FRAME is omitted or nil, use the selected frame.")
4410 (symbol
, keyword
, frame
)
4411 Lisp_Object symbol
, keyword
, frame
;
4413 Lisp_Object lface
, value
= Qnil
;
4415 CHECK_SYMBOL (symbol
, 0);
4416 CHECK_SYMBOL (keyword
, 1);
4419 lface
= lface_from_face_name (NULL
, symbol
, 1);
4423 frame
= selected_frame
;
4424 CHECK_LIVE_FRAME (frame
, 2);
4425 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4428 if (EQ (keyword
, QCfamily
))
4429 value
= LFACE_FAMILY (lface
);
4430 else if (EQ (keyword
, QCheight
))
4431 value
= LFACE_HEIGHT (lface
);
4432 else if (EQ (keyword
, QCweight
))
4433 value
= LFACE_WEIGHT (lface
);
4434 else if (EQ (keyword
, QCslant
))
4435 value
= LFACE_SLANT (lface
);
4436 else if (EQ (keyword
, QCunderline
))
4437 value
= LFACE_UNDERLINE (lface
);
4438 else if (EQ (keyword
, QCoverline
))
4439 value
= LFACE_OVERLINE (lface
);
4440 else if (EQ (keyword
, QCstrike_through
))
4441 value
= LFACE_STRIKE_THROUGH (lface
);
4442 else if (EQ (keyword
, QCbox
))
4443 value
= LFACE_BOX (lface
);
4444 else if (EQ (keyword
, QCinverse_video
)
4445 || EQ (keyword
, QCreverse_video
))
4446 value
= LFACE_INVERSE (lface
);
4447 else if (EQ (keyword
, QCforeground
))
4448 value
= LFACE_FOREGROUND (lface
);
4449 else if (EQ (keyword
, QCbackground
))
4450 value
= LFACE_BACKGROUND (lface
);
4451 else if (EQ (keyword
, QCstipple
))
4452 value
= LFACE_STIPPLE (lface
);
4453 else if (EQ (keyword
, QCwidth
))
4454 value
= LFACE_SWIDTH (lface
);
4455 else if (EQ (keyword
, QCinherit
))
4456 value
= LFACE_INHERIT (lface
);
4457 else if (EQ (keyword
, QCfont
))
4458 value
= LFACE_FONT (lface
);
4460 signal_error ("Invalid face attribute name", keyword
);
4466 DEFUN ("internal-lisp-face-attribute-values",
4467 Finternal_lisp_face_attribute_values
,
4468 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4469 "Return a list of valid discrete values for face attribute ATTR.\n\
4470 Value is nil if ATTR doesn't have a discrete set of valid values.")
4474 Lisp_Object result
= Qnil
;
4476 CHECK_SYMBOL (attr
, 0);
4478 if (EQ (attr
, QCweight
)
4479 || EQ (attr
, QCslant
)
4480 || EQ (attr
, QCwidth
))
4482 /* Extract permissible symbols from tables. */
4483 struct table_entry
*table
;
4486 if (EQ (attr
, QCweight
))
4487 table
= weight_table
, dim
= DIM (weight_table
);
4488 else if (EQ (attr
, QCslant
))
4489 table
= slant_table
, dim
= DIM (slant_table
);
4491 table
= swidth_table
, dim
= DIM (swidth_table
);
4493 for (i
= 0; i
< dim
; ++i
)
4495 Lisp_Object symbol
= *table
[i
].symbol
;
4496 Lisp_Object tail
= result
;
4499 && !EQ (XCAR (tail
), symbol
))
4503 result
= Fcons (symbol
, result
);
4506 else if (EQ (attr
, QCunderline
))
4507 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4508 else if (EQ (attr
, QCoverline
))
4509 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4510 else if (EQ (attr
, QCstrike_through
))
4511 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4512 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4513 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4519 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4520 Sinternal_merge_in_global_face
, 2, 2, 0,
4521 "Add attributes from frame-default definition of FACE to FACE on FRAME.")
4523 Lisp_Object face
, frame
;
4525 Lisp_Object global_lface
, local_lface
;
4526 CHECK_LIVE_FRAME (frame
, 1);
4527 global_lface
= lface_from_face_name (NULL
, face
, 1);
4528 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4529 if (NILP (local_lface
))
4530 local_lface
= Finternal_make_lisp_face (face
, frame
);
4531 merge_face_vectors (XFRAME (frame
),
4532 XVECTOR (global_lface
)->contents
,
4533 XVECTOR (local_lface
)->contents
,
4539 /* The following function is implemented for compatibility with 20.2.
4540 The function is used in x-resolve-fonts when it is asked to
4541 return fonts with the same size as the font of a face. This is
4542 done in fontset.el. */
4544 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4545 "Return the font name of face FACE, or nil if it is unspecified.\n\
4546 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4547 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4548 The font default for a face is either nil, or a list\n\
4549 of the form (bold), (italic) or (bold italic).\n\
4550 If FRAME is omitted or nil, use the selected frame.")
4552 Lisp_Object face
, frame
;
4556 Lisp_Object result
= Qnil
;
4557 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4559 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4560 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4561 result
= Fcons (Qbold
, result
);
4563 if (!NILP (LFACE_SLANT (lface
))
4564 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4565 result
= Fcons (Qitalic
, result
);
4571 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4572 int face_id
= lookup_named_face (f
, face
, 0);
4573 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4574 return build_string (face
->font_name
);
4579 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4580 all attributes are `equal'. Tries to be fast because this function
4581 is called quite often. */
4584 lface_equal_p (v1
, v2
)
4585 Lisp_Object
*v1
, *v2
;
4589 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4591 Lisp_Object a
= v1
[i
];
4592 Lisp_Object b
= v2
[i
];
4594 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4595 and the other is specified. */
4596 equal_p
= XTYPE (a
) == XTYPE (b
);
4605 equal_p
= ((STRING_BYTES (XSTRING (a
))
4606 == STRING_BYTES (XSTRING (b
)))
4607 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4608 STRING_BYTES (XSTRING (a
))) == 0);
4617 equal_p
= !NILP (Fequal (a
, b
));
4627 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4628 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4629 "True if FACE1 and FACE2 are equal.\n\
4630 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4631 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4632 If FRAME is omitted or nil, use the selected frame.")
4633 (face1
, face2
, frame
)
4634 Lisp_Object face1
, face2
, frame
;
4638 Lisp_Object lface1
, lface2
;
4643 /* Don't use check_x_frame here because this function is called
4644 before X frames exist. At that time, if FRAME is nil,
4645 selected_frame will be used which is the frame dumped with
4646 Emacs. That frame is not an X frame. */
4647 f
= frame_or_selected_frame (frame
, 2);
4649 lface1
= lface_from_face_name (NULL
, face1
, 1);
4650 lface2
= lface_from_face_name (NULL
, face2
, 1);
4651 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4652 XVECTOR (lface2
)->contents
);
4653 return equal_p
? Qt
: Qnil
;
4657 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4658 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4659 "True if FACE has no attribute specified.\n\
4660 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4661 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4662 If FRAME is omitted or nil, use the selected frame.")
4664 Lisp_Object face
, frame
;
4671 frame
= selected_frame
;
4672 CHECK_LIVE_FRAME (frame
, 0);
4676 lface
= lface_from_face_name (NULL
, face
, 1);
4678 lface
= lface_from_face_name (f
, face
, 1);
4680 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4681 if (!UNSPECIFIEDP (XVECTOR (lface
)->contents
[i
]))
4684 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4688 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4690 "Return an alist of frame-local faces defined on FRAME.\n\
4691 For internal use only.")
4695 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4696 return f
->face_alist
;
4700 /* Return a hash code for Lisp string STRING with case ignored. Used
4701 below in computing a hash value for a Lisp face. */
4703 static INLINE
unsigned
4704 hash_string_case_insensitive (string
)
4709 xassert (STRINGP (string
));
4710 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4711 hash
= (hash
<< 1) ^ tolower (*s
);
4716 /* Return a hash code for face attribute vector V. */
4718 static INLINE
unsigned
4722 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4723 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4724 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4725 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
4726 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
4727 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
4728 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4732 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4733 considering charsets/registries). They do if they specify the same
4734 family, point size, weight, width, slant, and fontset. Both LFACE1
4735 and LFACE2 must be fully-specified. */
4738 lface_same_font_attributes_p (lface1
, lface2
)
4739 Lisp_Object
*lface1
, *lface2
;
4741 xassert (lface_fully_specified_p (lface1
)
4742 && lface_fully_specified_p (lface2
));
4743 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4744 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4745 && EQ (lface1
[LFACE_HEIGHT_INDEX
], lface2
[LFACE_HEIGHT_INDEX
])
4746 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4747 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4748 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4749 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4750 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
4751 && STRINGP (lface2
[LFACE_FONT_INDEX
])
4752 && xstricmp (XSTRING (lface1
[LFACE_FONT_INDEX
])->data
,
4753 XSTRING (lface2
[LFACE_FONT_INDEX
])->data
))));
4758 /***********************************************************************
4760 ***********************************************************************/
4762 /* Allocate and return a new realized face for Lisp face attribute
4765 static struct face
*
4766 make_realized_face (attr
)
4769 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4770 bzero (face
, sizeof *face
);
4771 face
->ascii_face
= face
;
4772 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4777 /* Free realized face FACE, including its X resources. FACE may
4781 free_realized_face (f
, face
)
4787 #ifdef HAVE_WINDOW_SYSTEM
4788 if (FRAME_WINDOW_P (f
))
4790 /* Free fontset of FACE if it is ASCII face. */
4791 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4792 free_face_fontset (f
, face
);
4795 x_free_gc (f
, face
->gc
);
4799 free_face_colors (f
, face
);
4800 x_destroy_bitmap (f
, face
->stipple
);
4802 #endif /* HAVE_WINDOW_SYSTEM */
4809 /* Prepare face FACE for subsequent display on frame F. This
4810 allocated GCs if they haven't been allocated yet or have been freed
4811 by clearing the face cache. */
4814 prepare_face_for_display (f
, face
)
4818 #ifdef HAVE_WINDOW_SYSTEM
4819 xassert (FRAME_WINDOW_P (f
));
4824 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4826 xgcv
.foreground
= face
->foreground
;
4827 xgcv
.background
= face
->background
;
4828 #ifdef HAVE_X_WINDOWS
4829 xgcv
.graphics_exposures
= False
;
4831 /* The font of FACE may be null if we couldn't load it. */
4834 #ifdef HAVE_X_WINDOWS
4835 xgcv
.font
= face
->font
->fid
;
4838 xgcv
.font
= face
->font
;
4844 #ifdef HAVE_X_WINDOWS
4847 xgcv
.fill_style
= FillOpaqueStippled
;
4848 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4849 mask
|= GCFillStyle
| GCStipple
;
4852 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4855 #endif /* HAVE_WINDOW_SYSTEM */
4859 /***********************************************************************
4861 ***********************************************************************/
4863 /* Return a new face cache for frame F. */
4865 static struct face_cache
*
4869 struct face_cache
*c
;
4872 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4873 bzero (c
, sizeof *c
);
4874 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4875 c
->buckets
= (struct face
**) xmalloc (size
);
4876 bzero (c
->buckets
, size
);
4878 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4884 /* Clear out all graphics contexts for all realized faces, except for
4885 the basic faces. This should be done from time to time just to avoid
4886 keeping too many graphics contexts that are no longer needed. */
4890 struct face_cache
*c
;
4892 if (c
&& FRAME_WINDOW_P (c
->f
))
4894 #ifdef HAVE_WINDOW_SYSTEM
4896 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4898 struct face
*face
= c
->faces_by_id
[i
];
4899 if (face
&& face
->gc
)
4901 x_free_gc (c
->f
, face
->gc
);
4905 #endif /* HAVE_WINDOW_SYSTEM */
4910 /* Free all realized faces in face cache C, including basic faces. C
4911 may be null. If faces are freed, make sure the frame's current
4912 matrix is marked invalid, so that a display caused by an expose
4913 event doesn't try to use faces we destroyed. */
4916 free_realized_faces (c
)
4917 struct face_cache
*c
;
4922 struct frame
*f
= c
->f
;
4924 /* We must block input here because we can't process X events
4925 safely while only some faces are freed, or when the frame's
4926 current matrix still references freed faces. */
4929 for (i
= 0; i
< c
->used
; ++i
)
4931 free_realized_face (f
, c
->faces_by_id
[i
]);
4932 c
->faces_by_id
[i
] = NULL
;
4936 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4937 bzero (c
->buckets
, size
);
4939 /* Must do a thorough redisplay the next time. Mark current
4940 matrices as invalid because they will reference faces freed
4941 above. This function is also called when a frame is
4942 destroyed. In this case, the root window of F is nil. */
4943 if (WINDOWP (f
->root_window
))
4945 clear_current_matrices (f
);
4946 ++windows_or_buffers_changed
;
4954 /* Free all faces realized for multibyte characters on frame F that
4958 free_realized_multibyte_face (f
, fontset
)
4962 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4966 /* We must block input here because we can't process X events safely
4967 while only some faces are freed, or when the frame's current
4968 matrix still references freed faces. */
4971 for (i
= 0; i
< cache
->used
; i
++)
4973 face
= cache
->faces_by_id
[i
];
4975 && face
!= face
->ascii_face
4976 && face
->fontset
== fontset
)
4978 uncache_face (cache
, face
);
4979 free_realized_face (f
, face
);
4983 /* Must do a thorough redisplay the next time. Mark current
4984 matrices as invalid because they will reference faces freed
4985 above. This function is also called when a frame is destroyed.
4986 In this case, the root window of F is nil. */
4987 if (WINDOWP (f
->root_window
))
4989 clear_current_matrices (f
);
4990 ++windows_or_buffers_changed
;
4997 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4998 This is done after attributes of a named face have been changed,
4999 because we can't tell which realized faces depend on that face. */
5002 free_all_realized_faces (frame
)
5008 FOR_EACH_FRAME (rest
, frame
)
5009 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5012 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
5016 /* Free face cache C and faces in it, including their X resources. */
5020 struct face_cache
*c
;
5024 free_realized_faces (c
);
5026 xfree (c
->faces_by_id
);
5032 /* Cache realized face FACE in face cache C. HASH is the hash value
5033 of FACE. If FACE->fontset >= 0, add the new face to the end of the
5034 collision list of the face hash table of C. This is done because
5035 otherwise lookup_face would find FACE for every character, even if
5036 faces with the same attributes but for specific characters exist. */
5039 cache_face (c
, face
, hash
)
5040 struct face_cache
*c
;
5044 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5048 if (face
->fontset
>= 0)
5050 struct face
*last
= c
->buckets
[i
];
5061 c
->buckets
[i
] = face
;
5062 face
->prev
= face
->next
= NULL
;
5068 face
->next
= c
->buckets
[i
];
5070 face
->next
->prev
= face
;
5071 c
->buckets
[i
] = face
;
5074 /* Find a free slot in C->faces_by_id and use the index of the free
5075 slot as FACE->id. */
5076 for (i
= 0; i
< c
->used
; ++i
)
5077 if (c
->faces_by_id
[i
] == NULL
)
5081 /* Maybe enlarge C->faces_by_id. */
5082 if (i
== c
->used
&& c
->used
== c
->size
)
5084 int new_size
= 2 * c
->size
;
5085 int sz
= new_size
* sizeof *c
->faces_by_id
;
5086 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
5091 /* Check that FACE got a unique id. */
5096 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
5097 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
5103 #endif /* GLYPH_DEBUG */
5105 c
->faces_by_id
[i
] = face
;
5111 /* Remove face FACE from cache C. */
5114 uncache_face (c
, face
)
5115 struct face_cache
*c
;
5118 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
5121 face
->prev
->next
= face
->next
;
5123 c
->buckets
[i
] = face
->next
;
5126 face
->next
->prev
= face
->prev
;
5128 c
->faces_by_id
[face
->id
] = NULL
;
5129 if (face
->id
== c
->used
)
5134 /* Look up a realized face with face attributes ATTR in the face cache
5135 of frame F. The face will be used to display character C. Value
5136 is the ID of the face found. If no suitable face is found, realize
5137 a new one. In that case, if C is a multibyte character, BASE_FACE
5138 is a face that has the same attributes. */
5141 lookup_face (f
, attr
, c
, base_face
)
5145 struct face
*base_face
;
5147 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
5152 xassert (cache
!= NULL
);
5153 check_lface_attrs (attr
);
5155 /* Look up ATTR in the face cache. */
5156 hash
= lface_hash (attr
);
5157 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
5159 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
5160 if (face
->hash
== hash
5161 && (!FRAME_WINDOW_P (f
)
5162 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
5163 && lface_equal_p (face
->lface
, attr
))
5166 /* If not found, realize a new face. */
5168 face
= realize_face (cache
, attr
, c
, base_face
, -1);
5171 xassert (face
== FACE_FROM_ID (f
, face
->id
));
5173 /* When this function is called from face_for_char (in this case, C is
5174 a multibyte character), a fontset of a face returned by
5175 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
5176 C) is not sutisfied. The fontset is set for this face by
5177 face_for_char later. */
5179 if (FRAME_WINDOW_P (f
))
5180 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
5182 #endif /* GLYPH_DEBUG */
5188 /* Return the face id of the realized face for named face SYMBOL on
5189 frame F suitable for displaying character C. */
5192 lookup_named_face (f
, symbol
, c
)
5197 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5198 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5199 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5201 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5202 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5203 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5204 return lookup_face (f
, attrs
, c
, NULL
);
5208 /* Return the ID of the realized ASCII face of Lisp face with ID
5209 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
5212 ascii_face_of_lisp_face (f
, lface_id
)
5218 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
5220 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
5221 face_id
= lookup_named_face (f
, face_name
, 0);
5230 /* Return a face for charset ASCII that is like the face with id
5231 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5232 STEPS < 0 means larger. Value is the id of the face. */
5235 smaller_face (f
, face_id
, steps
)
5239 #ifdef HAVE_WINDOW_SYSTEM
5241 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5242 int pt
, last_pt
, last_height
;
5245 struct face
*new_face
;
5247 /* If not called for an X frame, just return the original face. */
5248 if (FRAME_TERMCAP_P (f
))
5251 /* Try in increments of 1/2 pt. */
5252 delta
= steps
< 0 ? 5 : -5;
5253 steps
= abs (steps
);
5255 face
= FACE_FROM_ID (f
, face_id
);
5256 bcopy (face
->lface
, attrs
, sizeof attrs
);
5257 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5258 new_face_id
= face_id
;
5259 last_height
= FONT_HEIGHT (face
->font
);
5263 /* Give up if we cannot find a font within 10pt. */
5264 && abs (last_pt
- pt
) < 100)
5266 /* Look up a face for a slightly smaller/larger font. */
5268 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5269 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5270 new_face
= FACE_FROM_ID (f
, new_face_id
);
5272 /* If height changes, count that as one step. */
5273 if (FONT_HEIGHT (new_face
->font
) != last_height
)
5276 last_height
= FONT_HEIGHT (new_face
->font
);
5283 #else /* not HAVE_WINDOW_SYSTEM */
5287 #endif /* not HAVE_WINDOW_SYSTEM */
5291 /* Return a face for charset ASCII that is like the face with id
5292 FACE_ID on frame F, but has height HEIGHT. */
5295 face_with_height (f
, face_id
, height
)
5300 #ifdef HAVE_WINDOW_SYSTEM
5302 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5304 if (FRAME_TERMCAP_P (f
)
5308 face
= FACE_FROM_ID (f
, face_id
);
5309 bcopy (face
->lface
, attrs
, sizeof attrs
);
5310 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5311 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5312 #endif /* HAVE_WINDOW_SYSTEM */
5317 /* Return the face id of the realized face for named face SYMBOL on
5318 frame F suitable for displaying character C, and use attributes of
5319 the face FACE_ID for attributes that aren't completely specified by
5320 SYMBOL. This is like lookup_named_face, except that the default
5321 attributes come from FACE_ID, not from the default face. FACE_ID
5322 is assumed to be already realized. */
5325 lookup_derived_face (f
, symbol
, c
, face_id
)
5331 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5332 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5333 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5338 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5339 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5340 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
5341 return lookup_face (f
, attrs
, c
, default_face
);
5346 /***********************************************************************
5348 ***********************************************************************/
5350 DEFUN ("internal-set-font-selection-order",
5351 Finternal_set_font_selection_order
,
5352 Sinternal_set_font_selection_order
, 1, 1, 0,
5353 "Set font selection order for face font selection to ORDER.\n\
5354 ORDER must be a list of length 4 containing the symbols `:width',\n\
5355 `:height', `:weight', and `:slant'. Face attributes appearing\n\
5356 first in ORDER are matched first, e.g. if `:height' appears before\n\
5357 `:weight' in ORDER, font selection first tries to find a font with\n\
5358 a suitable height, and then tries to match the font weight.\n\
5367 CHECK_LIST (order
, 0);
5368 bzero (indices
, sizeof indices
);
5372 CONSP (list
) && i
< DIM (indices
);
5373 list
= XCDR (list
), ++i
)
5375 Lisp_Object attr
= XCAR (list
);
5378 if (EQ (attr
, QCwidth
))
5380 else if (EQ (attr
, QCheight
))
5381 xlfd
= XLFD_POINT_SIZE
;
5382 else if (EQ (attr
, QCweight
))
5384 else if (EQ (attr
, QCslant
))
5389 if (indices
[i
] != 0)
5395 || i
!= DIM (indices
)
5400 signal_error ("Invalid font sort order", order
);
5402 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5404 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5405 free_all_realized_faces (Qnil
);
5412 DEFUN ("internal-set-alternative-font-family-alist",
5413 Finternal_set_alternative_font_family_alist
,
5414 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5415 "Define alternative font families to try in face font selection.\n\
5416 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5417 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
5418 be found. Value is ALIST.")
5422 CHECK_LIST (alist
, 0);
5423 Vface_alternative_font_family_alist
= alist
;
5424 free_all_realized_faces (Qnil
);
5429 #ifdef HAVE_WINDOW_SYSTEM
5431 /* Value is non-zero if FONT is the name of a scalable font. The
5432 X11R6 XLFD spec says that point size, pixel size, and average width
5433 are zero for scalable fonts. Intlfonts contain at least one
5434 scalable font ("*-muleindian-1") for which this isn't true, so we
5435 just test average width. */
5438 font_scalable_p (font
)
5439 struct font_name
*font
;
5441 char *s
= font
->fields
[XLFD_AVGWIDTH
];
5442 return (*s
== '0' && *(s
+ 1) == '\0')
5444 /* Windows implementation of XLFD is slightly broken for backward
5445 compatibility with previous broken versions, so test for
5446 wildcards as well as 0. */
5453 /* Value is non-zero if FONT1 is a better match for font attributes
5454 VALUES than FONT2. VALUES is an array of face attribute values in
5455 font sort order. COMPARE_PT_P zero means don't compare point
5459 better_font_p (values
, font1
, font2
, compare_pt_p
)
5461 struct font_name
*font1
, *font2
;
5466 for (i
= 0; i
< 4; ++i
)
5468 int xlfd_idx
= font_sort_order
[i
];
5470 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
5472 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
5473 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
5475 if (delta1
> delta2
)
5477 else if (delta1
< delta2
)
5481 /* The difference may be equal because, e.g., the face
5482 specifies `italic' but we have only `regular' and
5483 `oblique'. Prefer `oblique' in this case. */
5484 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5485 && font1
->numeric
[xlfd_idx
] > values
[i
]
5486 && font2
->numeric
[xlfd_idx
] < values
[i
])
5498 /* Value is non-zero if FONT is an exact match for face attributes in
5499 SPECIFIED. SPECIFIED is an array of face attribute values in font
5503 exact_face_match_p (specified
, font
)
5505 struct font_name
*font
;
5509 for (i
= 0; i
< 4; ++i
)
5510 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5517 /* Value is the name of a scaled font, generated from scalable font
5518 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5519 Value is allocated from heap. */
5522 build_scalable_font_name (f
, font
, specified_pt
)
5524 struct font_name
*font
;
5527 char point_size
[20], pixel_size
[20];
5529 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5532 /* If scalable font is for a specific resolution, compute
5533 the point size we must specify from the resolution of
5534 the display and the specified resolution of the font. */
5535 if (font
->numeric
[XLFD_RESY
] != 0)
5537 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5538 pixel_value
= font
->numeric
[XLFD_RESY
] / 720.0 * pt
;
5543 pixel_value
= resy
/ 720.0 * pt
;
5546 /* Set point size of the font. */
5547 sprintf (point_size
, "%d", (int) pt
);
5548 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5549 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5551 /* Set pixel size. */
5552 sprintf (pixel_size
, "%d", pixel_value
);
5553 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5554 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5556 /* If font doesn't specify its resolution, use the
5557 resolution of the display. */
5558 if (font
->numeric
[XLFD_RESY
] == 0)
5561 sprintf (buffer
, "%d", (int) resy
);
5562 font
->fields
[XLFD_RESY
] = buffer
;
5563 font
->numeric
[XLFD_RESY
] = resy
;
5566 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5569 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5570 sprintf (buffer
, "%d", resx
);
5571 font
->fields
[XLFD_RESX
] = buffer
;
5572 font
->numeric
[XLFD_RESX
] = resx
;
5575 return build_font_name (font
);
5579 /* Value is non-zero if we are allowed to use scalable font FONT. We
5580 can't run a Lisp function here since this function may be called
5581 with input blocked. */
5584 may_use_scalable_font_p (font
, name
)
5585 struct font_name
*font
;
5588 if (EQ (Vscalable_fonts_allowed
, Qt
))
5590 else if (CONSP (Vscalable_fonts_allowed
))
5592 Lisp_Object tail
, regexp
;
5594 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5596 regexp
= XCAR (tail
);
5597 if (STRINGP (regexp
)
5598 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
5606 #endif /* SCALABLE_FONTS != 0 */
5609 /* Return the name of the best matching font for face attributes
5610 ATTRS in the array of font_name structures FONTS which contains
5611 NFONTS elements. Value is a font name which is allocated from
5612 the heap. FONTS is freed by this function. */
5615 best_matching_font (f
, attrs
, fonts
, nfonts
)
5618 struct font_name
*fonts
;
5622 struct font_name
*best
;
5630 /* Make specified font attributes available in `specified',
5631 indexed by sort order. */
5632 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5634 int xlfd_idx
= font_sort_order
[i
];
5636 if (xlfd_idx
== XLFD_SWIDTH
)
5637 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5638 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5639 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5640 else if (xlfd_idx
== XLFD_WEIGHT
)
5641 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5642 else if (xlfd_idx
== XLFD_SLANT
)
5643 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5653 /* Start with the first non-scalable font in the list. */
5654 for (i
= 0; i
< nfonts
; ++i
)
5655 if (!font_scalable_p (fonts
+ i
))
5658 /* Find the best match among the non-scalable fonts. */
5663 for (i
= 1; i
< nfonts
; ++i
)
5664 if (!font_scalable_p (fonts
+ i
)
5665 && better_font_p (specified
, fonts
+ i
, best
, 1))
5669 exact_p
= exact_face_match_p (specified
, best
);
5678 /* Unless we found an exact match among non-scalable fonts, see if
5679 we can find a better match among scalable fonts. */
5682 /* A scalable font is better if
5684 1. its weight, slant, swidth attributes are better, or.
5686 2. the best non-scalable font doesn't have the required
5687 point size, and the scalable fonts weight, slant, swidth
5690 int non_scalable_has_exact_height_p
;
5692 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5693 non_scalable_has_exact_height_p
= 1;
5695 non_scalable_has_exact_height_p
= 0;
5697 for (i
= 0; i
< nfonts
; ++i
)
5698 if (font_scalable_p (fonts
+ i
))
5701 || better_font_p (specified
, fonts
+ i
, best
, 0)
5702 || (!non_scalable_has_exact_height_p
5703 && !better_font_p (specified
, best
, fonts
+ i
, 0)))
5708 if (font_scalable_p (best
))
5709 font_name
= build_scalable_font_name (f
, best
, pt
);
5711 font_name
= build_font_name (best
);
5713 #else /* !SCALABLE_FONTS */
5715 /* Find the best non-scalable font. */
5718 for (i
= 1; i
< nfonts
; ++i
)
5720 xassert (!font_scalable_p (fonts
+ i
));
5721 if (better_font_p (specified
, fonts
+ i
, best
, 1))
5725 font_name
= build_font_name (best
);
5727 #endif /* !SCALABLE_FONTS */
5729 /* Free font_name structures. */
5730 free_font_names (fonts
, nfonts
);
5736 /* Try to get a list of fonts on frame F with font family FAMILY and
5737 registry/encoding REGISTRY. Return in *FONTS a pointer to a vector
5738 of font_name structures for the fonts matched. Value is the number
5742 try_font_list (f
, attrs
, pattern
, family
, registry
, fonts
)
5745 Lisp_Object pattern
, family
, registry
;
5746 struct font_name
**fonts
;
5750 if (NILP (family
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
5751 family
= attrs
[LFACE_FAMILY_INDEX
];
5753 nfonts
= font_list (f
, pattern
, family
, registry
, fonts
);
5755 if (nfonts
== 0 && !NILP (family
))
5759 /* Try alternative font families from
5760 Vface_alternative_font_family_alist. */
5761 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
5763 for (alter
= XCDR (alter
);
5764 CONSP (alter
) && nfonts
== 0;
5765 alter
= XCDR (alter
))
5767 if (STRINGP (XCAR (alter
)))
5768 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
5771 /* Try font family of the default face or "fixed". */
5774 struct face
*dflt
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5776 family
= dflt
->lface
[LFACE_FAMILY_INDEX
];
5778 family
= build_string ("fixed");
5779 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
5782 /* Try any family with the given registry. */
5784 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
5791 /* Return the fontset id of the base fontset name or alias name given
5792 by the fontset attribute of ATTRS. Value is -1 if the fontset
5793 attribute of ATTRS doesn't name a fontset. */
5796 face_fontset (attrs
)
5802 name
= attrs
[LFACE_FONT_INDEX
];
5803 if (!STRINGP (name
))
5805 return fs_query_fontset (name
, 0);
5809 /* Choose a name of font to use on frame F to display character C with
5810 Lisp face attributes specified by ATTRS. The font name is
5811 determined by the font-related attributes in ATTRS and the name
5812 pattern for C in FONTSET. Value is the font name which is
5813 allocated from the heap and must be freed by the caller, or NULL if
5814 we can get no information about the font name of C. It is assured
5815 that we always get some information for a single byte
5819 choose_face_font (f
, attrs
, fontset
, c
)
5824 Lisp_Object pattern
;
5825 char *font_name
= NULL
;
5826 struct font_name
*fonts
;
5829 /* Get (foundry and) family name and registry (and encoding) name of
5831 pattern
= fontset_font_pattern (f
, fontset
, c
);
5834 xassert (!SINGLE_BYTE_CHAR_P (c
));
5837 /* If what we got is a name pattern, return it. */
5838 if (STRINGP (pattern
))
5839 return xstrdup (XSTRING (pattern
)->data
);
5841 /* Family name may be specified both in ATTRS and car part of
5842 PATTERN. The former has higher priority if C is a single byte
5844 if (STRINGP (attrs
[LFACE_FAMILY_INDEX
])
5845 && SINGLE_BYTE_CHAR_P (c
))
5846 XCAR (pattern
) = Qnil
;
5848 /* Get a list of fonts matching that pattern and choose the
5849 best match for the specified face attributes from it. */
5850 nfonts
= try_font_list (f
, attrs
, Qnil
, XCAR (pattern
), XCDR (pattern
),
5852 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
);
5856 #endif /* HAVE_WINDOW_SYSTEM */
5860 /***********************************************************************
5862 ***********************************************************************/
5864 /* Realize basic faces on frame F. Value is zero if frame parameters
5865 of F don't contain enough information needed to realize the default
5869 realize_basic_faces (f
)
5874 /* Block input there so that we won't be surprised by an X expose
5875 event, for instance without having the faces set up. */
5878 if (realize_default_face (f
))
5880 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5881 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5882 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
5883 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5884 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5885 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5886 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5887 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5888 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5897 /* Realize the default face on frame F. If the face is not fully
5898 specified, make it fully-specified. Attributes of the default face
5899 that are not explicitly specified are taken from frame parameters. */
5902 realize_default_face (f
)
5905 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5907 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5908 Lisp_Object frame_font
;
5912 /* If the `default' face is not yet known, create it. */
5913 lface
= lface_from_face_name (f
, Qdefault
, 0);
5917 XSETFRAME (frame
, f
);
5918 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5921 #ifdef HAVE_WINDOW_SYSTEM
5922 if (FRAME_WINDOW_P (f
))
5924 /* Set frame_font to the value of the `font' frame parameter. */
5925 frame_font
= Fassq (Qfont
, f
->param_alist
);
5926 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
5927 frame_font
= XCDR (frame_font
);
5928 set_lface_from_font_name (f
, lface
, frame_font
, 0, 1);
5930 #endif /* HAVE_WINDOW_SYSTEM */
5932 if (!FRAME_WINDOW_P (f
))
5934 LFACE_FAMILY (lface
) = build_string ("default");
5935 LFACE_SWIDTH (lface
) = Qnormal
;
5936 LFACE_HEIGHT (lface
) = make_number (1);
5937 LFACE_WEIGHT (lface
) = Qnormal
;
5938 LFACE_SLANT (lface
) = Qnormal
;
5941 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5942 LFACE_UNDERLINE (lface
) = Qnil
;
5944 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5945 LFACE_OVERLINE (lface
) = Qnil
;
5947 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5948 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5950 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5951 LFACE_BOX (lface
) = Qnil
;
5953 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5954 LFACE_INVERSE (lface
) = Qnil
;
5956 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5958 /* This function is called so early that colors are not yet
5959 set in the frame parameter list. */
5960 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5962 if (CONSP (color
) && STRINGP (XCDR (color
)))
5963 LFACE_FOREGROUND (lface
) = XCDR (color
);
5964 else if (FRAME_WINDOW_P (f
))
5966 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5967 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5972 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5974 /* This function is called so early that colors are not yet
5975 set in the frame parameter list. */
5976 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5977 if (CONSP (color
) && STRINGP (XCDR (color
)))
5978 LFACE_BACKGROUND (lface
) = XCDR (color
);
5979 else if (FRAME_WINDOW_P (f
))
5981 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5982 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5987 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5988 LFACE_STIPPLE (lface
) = Qnil
;
5990 /* Realize the face; it must be fully-specified now. */
5991 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5992 check_lface (lface
);
5993 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5994 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
5999 /* Realize basic faces other than the default face in face cache C.
6000 SYMBOL is the face name, ID is the face id the realized face must
6001 have. The default face must have been realized already. */
6004 realize_named_face (f
, symbol
, id
)
6009 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
6010 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
6011 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6012 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
6013 struct face
*new_face
;
6015 /* The default face must exist and be fully specified. */
6016 get_lface_attributes (f
, Qdefault
, attrs
, 1);
6017 check_lface_attrs (attrs
);
6018 xassert (lface_fully_specified_p (attrs
));
6020 /* If SYMBOL isn't know as a face, create it. */
6024 XSETFRAME (frame
, f
);
6025 lface
= Finternal_make_lisp_face (symbol
, frame
);
6028 /* Merge SYMBOL's face with the default face. */
6029 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
6030 merge_face_vectors (f
, symbol_attrs
, attrs
, Qnil
);
6032 /* Realize the face. */
6033 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
6037 /* Realize the fully-specified face with attributes ATTRS in face
6038 cache CACHE for character C. If C is a multibyte character,
6039 BASE_FACE is a face that has the same attributes. Otherwise,
6040 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
6041 ID of face to remove before caching the new face. Value is a
6042 pointer to the newly created realized face. */
6044 static struct face
*
6045 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
6046 struct face_cache
*cache
;
6049 struct face
*base_face
;
6054 /* LFACE must be fully specified. */
6055 xassert (cache
!= NULL
);
6056 check_lface_attrs (attrs
);
6058 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
6060 /* Remove the former face. */
6061 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
6062 uncache_face (cache
, former_face
);
6063 free_realized_face (cache
->f
, former_face
);
6066 if (FRAME_WINDOW_P (cache
->f
))
6067 face
= realize_x_face (cache
, attrs
, c
, base_face
);
6068 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
6069 face
= realize_tty_face (cache
, attrs
, c
);
6073 /* Insert the new face. */
6074 cache_face (cache
, face
, lface_hash (attrs
));
6075 #ifdef HAVE_WINDOW_SYSTEM
6076 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
6077 load_face_font (cache
->f
, face
, c
);
6078 #endif /* HAVE_WINDOW_SYSTEM */
6083 /* Realize the fully-specified face with attributes ATTRS in face
6084 cache CACHE for character C. Do it for X frame CACHE->f. If C is
6085 a multibyte character, BASE_FACE is a face that has the same
6086 attributes. Otherwise, BASE_FACE is ignored. If the new face
6087 doesn't share font with the default face, a fontname is allocated
6088 from the heap and set in `font_name' of the new face, but it is not
6089 yet loaded here. Value is a pointer to the newly created realized
6092 static struct face
*
6093 realize_x_face (cache
, attrs
, c
, base_face
)
6094 struct face_cache
*cache
;
6097 struct face
*base_face
;
6099 #ifdef HAVE_WINDOW_SYSTEM
6100 struct face
*face
, *default_face
;
6102 Lisp_Object stipple
, overline
, strike_through
, box
;
6104 xassert (FRAME_WINDOW_P (cache
->f
));
6105 xassert (SINGLE_BYTE_CHAR_P (c
)
6108 /* Allocate a new realized face. */
6109 face
= make_realized_face (attrs
);
6113 /* If C is a multibyte character, we share all face attirbutes with
6114 BASE_FACE including the realized fontset. But, we must load a
6116 if (!SINGLE_BYTE_CHAR_P (c
))
6118 bcopy (base_face
, face
, sizeof *face
);
6121 /* Don't try to free the colors copied bitwise from BASE_FACE. */
6122 face
->foreground_defaulted_p
= 1;
6123 face
->background_defaulted_p
= 1;
6124 face
->underline_defaulted_p
= 1;
6125 face
->overline_color_defaulted_p
= 1;
6126 face
->strike_through_color_defaulted_p
= 1;
6127 face
->box_color_defaulted_p
= 1;
6129 /* to force realize_face to load font */
6134 /* Now we are realizing a face for ASCII (and unibyte) characters. */
6136 /* Determine the font to use. Most of the time, the font will be
6137 the same as the font of the default face, so try that first. */
6138 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6140 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
6141 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
6143 face
->font
= default_face
->font
;
6144 face
->fontset
= default_face
->fontset
;
6145 face
->font_info_id
= default_face
->font_info_id
;
6146 face
->font_name
= default_face
->font_name
;
6147 face
->ascii_face
= face
;
6149 /* But, as we can't share the fontset, make a new realized
6150 fontset that has the same base fontset as of the default
6153 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
6157 /* If the face attribute ATTRS specifies a fontset, use it as
6158 the base of a new realized fontset. Otherwise, use the same
6159 base fontset as of the default face. The base determines
6160 registry and encoding of a font. It may also determine
6161 foundry and family. The other fields of font name pattern
6162 are constructed from ATTRS. */
6163 int fontset
= face_fontset (attrs
);
6165 if ((fontset
== -1) && default_face
)
6166 fontset
= default_face
->fontset
;
6167 face
->fontset
= make_fontset_for_ascii_face (f
, fontset
);
6168 face
->font
= NULL
; /* to force realize_face to load font */
6171 /* Load colors, and set remaining attributes. */
6173 load_face_colors (f
, face
, attrs
);
6176 box
= attrs
[LFACE_BOX_INDEX
];
6179 /* A simple box of line width 1 drawn in color given by
6181 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
6183 face
->box
= FACE_SIMPLE_BOX
;
6184 face
->box_line_width
= 1;
6186 else if (INTEGERP (box
))
6188 /* Simple box of specified line width in foreground color of the
6190 xassert (XINT (box
) > 0);
6191 face
->box
= FACE_SIMPLE_BOX
;
6192 face
->box_line_width
= XFASTINT (box
);
6193 face
->box_color
= face
->foreground
;
6194 face
->box_color_defaulted_p
= 1;
6196 else if (CONSP (box
))
6198 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
6199 being one of `raised' or `sunken'. */
6200 face
->box
= FACE_SIMPLE_BOX
;
6201 face
->box_color
= face
->foreground
;
6202 face
->box_color_defaulted_p
= 1;
6203 face
->box_line_width
= 1;
6207 Lisp_Object keyword
, value
;
6209 keyword
= XCAR (box
);
6217 if (EQ (keyword
, QCline_width
))
6219 if (INTEGERP (value
) && XINT (value
) > 0)
6220 face
->box_line_width
= XFASTINT (value
);
6222 else if (EQ (keyword
, QCcolor
))
6224 if (STRINGP (value
))
6226 face
->box_color
= load_color (f
, face
, value
,
6228 face
->use_box_color_for_shadows_p
= 1;
6231 else if (EQ (keyword
, QCstyle
))
6233 if (EQ (value
, Qreleased_button
))
6234 face
->box
= FACE_RAISED_BOX
;
6235 else if (EQ (value
, Qpressed_button
))
6236 face
->box
= FACE_SUNKEN_BOX
;
6241 /* Text underline, overline, strike-through. */
6243 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
6245 /* Use default color (same as foreground color). */
6246 face
->underline_p
= 1;
6247 face
->underline_defaulted_p
= 1;
6248 face
->underline_color
= 0;
6250 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
6252 /* Use specified color. */
6253 face
->underline_p
= 1;
6254 face
->underline_defaulted_p
= 0;
6255 face
->underline_color
6256 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
6257 LFACE_UNDERLINE_INDEX
);
6259 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6261 face
->underline_p
= 0;
6262 face
->underline_defaulted_p
= 0;
6263 face
->underline_color
= 0;
6266 overline
= attrs
[LFACE_OVERLINE_INDEX
];
6267 if (STRINGP (overline
))
6269 face
->overline_color
6270 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
6271 LFACE_OVERLINE_INDEX
);
6272 face
->overline_p
= 1;
6274 else if (EQ (overline
, Qt
))
6276 face
->overline_color
= face
->foreground
;
6277 face
->overline_color_defaulted_p
= 1;
6278 face
->overline_p
= 1;
6281 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6282 if (STRINGP (strike_through
))
6284 face
->strike_through_color
6285 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6286 LFACE_STRIKE_THROUGH_INDEX
);
6287 face
->strike_through_p
= 1;
6289 else if (EQ (strike_through
, Qt
))
6291 face
->strike_through_color
= face
->foreground
;
6292 face
->strike_through_color_defaulted_p
= 1;
6293 face
->strike_through_p
= 1;
6296 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6297 if (!NILP (stipple
))
6298 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6300 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
6302 #endif /* HAVE_WINDOW_SYSTEM */
6306 /* Map a specified color of face FACE on frame F to a tty color index.
6307 IDX is either LFACE_FOREGROUND_INDEX or LFACE_BACKGROUND_INDEX, and
6308 specifies which color to map. Set *DEFAULTED to 1 if mapping to the
6309 default foreground/background colors. */
6312 map_tty_color (f
, face
, idx
, defaulted
)
6315 enum lface_attribute_index idx
;
6318 Lisp_Object frame
, color
, def
;
6319 int foreground_p
= idx
== LFACE_FOREGROUND_INDEX
;
6320 unsigned long default_pixel
, default_other_pixel
, pixel
;
6322 xassert (idx
== LFACE_FOREGROUND_INDEX
|| idx
== LFACE_BACKGROUND_INDEX
);
6326 pixel
= default_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6327 default_other_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6331 pixel
= default_pixel
= FACE_TTY_DEFAULT_BG_COLOR
;
6332 default_other_pixel
= FACE_TTY_DEFAULT_FG_COLOR
;
6335 XSETFRAME (frame
, f
);
6336 color
= face
->lface
[idx
];
6339 && XSTRING (color
)->size
6340 && CONSP (Vtty_defined_color_alist
)
6341 && (def
= assq_no_quit (color
, call1 (Qtty_color_alist
, frame
)),
6344 /* Associations in tty-defined-color-alist are of the form
6345 (NAME INDEX R G B). We need the INDEX part. */
6346 pixel
= XINT (XCAR (XCDR (def
)));
6349 if (pixel
== default_pixel
&& STRINGP (color
))
6351 pixel
= load_color (f
, face
, color
, idx
);
6353 #if defined (MSDOS) || defined (WINDOWSNT)
6354 /* If the foreground of the default face is the default color,
6355 use the foreground color defined by the frame. */
6357 if (FRAME_MSDOS_P (f
))
6360 if (pixel
== default_pixel
6361 || pixel
== FACE_TTY_DEFAULT_COLOR
)
6364 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6366 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6367 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6370 else if (pixel
== default_other_pixel
)
6373 pixel
= FRAME_BACKGROUND_PIXEL (f
);
6375 pixel
= FRAME_FOREGROUND_PIXEL (f
);
6376 face
->lface
[idx
] = tty_color_name (f
, pixel
);
6382 #endif /* MSDOS or WINDOWSNT */
6386 face
->foreground
= pixel
;
6388 face
->background
= pixel
;
6392 /* Realize the fully-specified face with attributes ATTRS in face
6393 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
6394 pointer to the newly created realized face. */
6396 static struct face
*
6397 realize_tty_face (cache
, attrs
, c
)
6398 struct face_cache
*cache
;
6404 int face_colors_defaulted
= 0;
6405 struct frame
*f
= cache
->f
;
6407 /* Frame must be a termcap frame. */
6408 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6410 /* Allocate a new realized face. */
6411 face
= make_realized_face (attrs
);
6412 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6414 /* Map face attributes to TTY appearances. We map slant to
6415 dimmed text because we want italic text to appear differently
6416 and because dimmed text is probably used infrequently. */
6417 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6418 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6420 if (weight
> XLFD_WEIGHT_MEDIUM
)
6421 face
->tty_bold_p
= 1;
6422 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6423 face
->tty_dim_p
= 1;
6424 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6425 face
->tty_underline_p
= 1;
6426 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6427 face
->tty_reverse_p
= 1;
6429 /* Map color names to color indices. */
6430 map_tty_color (f
, face
, LFACE_FOREGROUND_INDEX
, &face_colors_defaulted
);
6431 map_tty_color (f
, face
, LFACE_BACKGROUND_INDEX
, &face_colors_defaulted
);
6433 /* Swap colors if face is inverse-video. If the colors are taken
6434 from the frame colors, they are already inverted, since the
6435 frame-creation function calls x-handle-reverse-video. */
6436 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6438 unsigned long tem
= face
->foreground
;
6439 face
->foreground
= face
->background
;
6440 face
->background
= tem
;
6443 if (tty_suppress_bold_inverse_default_colors_p
6445 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6446 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6447 face
->tty_bold_p
= 0;
6453 DEFUN ("tty-suppress-bold-inverse-default-colors",
6454 Ftty_suppress_bold_inverse_default_colors
,
6455 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6456 "Suppress/allow boldness of faces with inverse default colors.\n\
6457 SUPPRESS non-nil means suppress it.\n\
6458 This affects bold faces on TTYs whose foreground is the default background\n\
6459 color of the display and whose background is the default foreground color.\n\
6460 For such faces, the bold face attribute is ignored if this variable\n\
6463 Lisp_Object suppress
;
6465 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6466 ++face_change_count
;
6472 /***********************************************************************
6474 ***********************************************************************/
6476 /* Return the ID of the face to use to display character CH with face
6477 property PROP on frame F in current_buffer. */
6480 compute_char_face (f
, ch
, prop
)
6487 if (NILP (current_buffer
->enable_multibyte_characters
))
6492 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6493 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
6497 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6498 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6499 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6500 merge_face_vector_with_property (f
, attrs
, prop
);
6501 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
6508 /* Return the face ID associated with buffer position POS for
6509 displaying ASCII characters. Return in *ENDPTR the position at
6510 which a different face is needed, as far as text properties and
6511 overlays are concerned. W is a window displaying current_buffer.
6513 REGION_BEG, REGION_END delimit the region, so it can be
6516 LIMIT is a position not to scan beyond. That is to limit the time
6517 this function can take.
6519 If MOUSE is non-zero, use the character's mouse-face, not its face.
6521 The face returned is suitable for displaying ASCII characters. */
6524 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6525 endptr
, limit
, mouse
)
6528 int region_beg
, region_end
;
6533 struct frame
*f
= XFRAME (w
->frame
);
6534 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6535 Lisp_Object prop
, position
;
6537 Lisp_Object
*overlay_vec
;
6540 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6541 Lisp_Object limit1
, end
;
6542 struct face
*default_face
;
6543 int multibyte_p
= !NILP (current_buffer
->enable_multibyte_characters
);
6545 /* W must display the current buffer. We could write this function
6546 to use the frame and buffer of W, but right now it doesn't. */
6547 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6549 XSETFRAME (frame
, f
);
6550 XSETFASTINT (position
, pos
);
6553 if (pos
< region_beg
&& region_beg
< endpos
)
6554 endpos
= region_beg
;
6556 /* Get the `face' or `mouse_face' text property at POS, and
6557 determine the next position at which the property changes. */
6558 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6559 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6560 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6562 endpos
= XINT (end
);
6564 /* Look at properties from overlays. */
6569 /* First try with room for 40 overlays. */
6571 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6572 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6573 &next_overlay
, NULL
, 0);
6575 /* If there are more than 40, make enough space for all, and try
6577 if (noverlays
> len
)
6580 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6581 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6582 &next_overlay
, NULL
, 0);
6585 if (next_overlay
< endpos
)
6586 endpos
= next_overlay
;
6591 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6593 /* Optimize common cases where we can use the default face. */
6596 && !(pos
>= region_beg
&& pos
< region_end
))
6597 return DEFAULT_FACE_ID
;
6599 /* Begin with attributes from the default face. */
6600 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6602 /* Merge in attributes specified via text properties. */
6604 merge_face_vector_with_property (f
, attrs
, prop
);
6606 /* Now merge the overlay data. */
6607 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6608 for (i
= 0; i
< noverlays
; i
++)
6613 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6615 merge_face_vector_with_property (f
, attrs
, prop
);
6617 oend
= OVERLAY_END (overlay_vec
[i
]);
6618 oendpos
= OVERLAY_POSITION (oend
);
6619 if (oendpos
< endpos
)
6623 /* If in the region, merge in the region face. */
6624 if (pos
>= region_beg
&& pos
< region_end
)
6626 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6627 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6629 if (region_end
< endpos
)
6630 endpos
= region_end
;
6635 /* Look up a realized face with the given face attributes,
6636 or realize a new one for ASCII characters. */
6637 return lookup_face (f
, attrs
, 0, NULL
);
6641 /* Compute the face at character position POS in Lisp string STRING on
6642 window W, for ASCII characters.
6644 If STRING is an overlay string, it comes from position BUFPOS in
6645 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6646 not an overlay string. W must display the current buffer.
6647 REGION_BEG and REGION_END give the start and end positions of the
6648 region; both are -1 if no region is visible. BASE_FACE_ID is the
6649 id of the basic face to merge with. It is usually equal to
6650 DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID
6651 for strings displayed in the mode or top line.
6653 Set *ENDPTR to the next position where to check for faces in
6654 STRING; -1 if the face is constant from POS to the end of the
6657 Value is the id of the face to use. The face returned is suitable
6658 for displaying ASCII characters. */
6661 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6662 region_end
, endptr
, base_face_id
)
6666 int region_beg
, region_end
;
6668 enum face_id base_face_id
;
6670 Lisp_Object prop
, position
, end
, limit
;
6671 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6672 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6673 struct face
*base_face
;
6674 int multibyte_p
= STRING_MULTIBYTE (string
);
6676 /* Get the value of the face property at the current position within
6677 STRING. Value is nil if there is no face property. */
6678 XSETFASTINT (position
, pos
);
6679 prop
= Fget_text_property (position
, Qface
, string
);
6681 /* Get the next position at which to check for faces. Value of end
6682 is nil if face is constant all the way to the end of the string.
6683 Otherwise it is a string position where to check faces next.
6684 Limit is the maximum position up to which to check for property
6685 changes in Fnext_single_property_change. Strings are usually
6686 short, so set the limit to the end of the string. */
6687 XSETFASTINT (limit
, XSTRING (string
)->size
);
6688 end
= Fnext_single_property_change (position
, Qface
, string
, limit
);
6690 *endptr
= XFASTINT (end
);
6694 base_face
= FACE_FROM_ID (f
, base_face_id
);
6695 xassert (base_face
);
6697 /* Optimize the default case that there is no face property and we
6698 are not in the region. */
6700 && (base_face_id
!= DEFAULT_FACE_ID
6701 /* BUFPOS <= 0 means STRING is not an overlay string, so
6702 that the region doesn't have to be taken into account. */
6704 || bufpos
< region_beg
6705 || bufpos
>= region_end
)
6707 /* We can't realize faces for different charsets differently
6708 if we don't have fonts, so we can stop here if not working
6709 on a window-system frame. */
6710 || !FRAME_WINDOW_P (f
)
6711 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6712 return base_face
->id
;
6714 /* Begin with attributes from the base face. */
6715 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6717 /* Merge in attributes specified via text properties. */
6719 merge_face_vector_with_property (f
, attrs
, prop
);
6721 /* If in the region, merge in the region face. */
6723 && bufpos
>= region_beg
6724 && bufpos
< region_end
)
6726 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6727 merge_face_vectors (f
, XVECTOR (region_face
)->contents
, attrs
, Qnil
);
6730 /* Look up a realized face with the given face attributes,
6731 or realize a new one for ASCII characters. */
6732 return lookup_face (f
, attrs
, 0, NULL
);
6737 /***********************************************************************
6739 ***********************************************************************/
6743 /* Print the contents of the realized face FACE to stderr. */
6746 dump_realized_face (face
)
6749 fprintf (stderr
, "ID: %d\n", face
->id
);
6750 #ifdef HAVE_X_WINDOWS
6751 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6753 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6755 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
6756 fprintf (stderr
, "background: 0x%lx (%s)\n",
6758 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
6759 fprintf (stderr
, "font_name: %s (%s)\n",
6761 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
6762 #ifdef HAVE_X_WINDOWS
6763 fprintf (stderr
, "font = %p\n", face
->font
);
6765 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
6766 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6767 fprintf (stderr
, "underline: %d (%s)\n",
6769 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
6770 fprintf (stderr
, "hash: %d\n", face
->hash
);
6771 fprintf (stderr
, "charset: %d\n", face
->charset
);
6775 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
6783 fprintf (stderr
, "font selection order: ");
6784 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6785 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6786 fprintf (stderr
, "\n");
6788 fprintf (stderr
, "alternative fonts: ");
6789 debug_print (Vface_alternative_font_family_alist
);
6790 fprintf (stderr
, "\n");
6792 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6793 Fdump_face (make_number (i
));
6798 CHECK_NUMBER (n
, 0);
6799 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6801 error ("Not a valid face");
6802 dump_realized_face (face
);
6809 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6813 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6814 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6815 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6819 #endif /* GLYPH_DEBUG != 0 */
6823 /***********************************************************************
6825 ***********************************************************************/
6830 Qface
= intern ("face");
6832 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6833 staticpro (&Qbitmap_spec_p
);
6834 Qframe_update_face_colors
= intern ("frame-update-face-colors");
6835 staticpro (&Qframe_update_face_colors
);
6837 /* Lisp face attribute keywords. */
6838 QCfamily
= intern (":family");
6839 staticpro (&QCfamily
);
6840 QCheight
= intern (":height");
6841 staticpro (&QCheight
);
6842 QCweight
= intern (":weight");
6843 staticpro (&QCweight
);
6844 QCslant
= intern (":slant");
6845 staticpro (&QCslant
);
6846 QCunderline
= intern (":underline");
6847 staticpro (&QCunderline
);
6848 QCinverse_video
= intern (":inverse-video");
6849 staticpro (&QCinverse_video
);
6850 QCreverse_video
= intern (":reverse-video");
6851 staticpro (&QCreverse_video
);
6852 QCforeground
= intern (":foreground");
6853 staticpro (&QCforeground
);
6854 QCbackground
= intern (":background");
6855 staticpro (&QCbackground
);
6856 QCstipple
= intern (":stipple");;
6857 staticpro (&QCstipple
);
6858 QCwidth
= intern (":width");
6859 staticpro (&QCwidth
);
6860 QCfont
= intern (":font");
6861 staticpro (&QCfont
);
6862 QCbold
= intern (":bold");
6863 staticpro (&QCbold
);
6864 QCitalic
= intern (":italic");
6865 staticpro (&QCitalic
);
6866 QCoverline
= intern (":overline");
6867 staticpro (&QCoverline
);
6868 QCstrike_through
= intern (":strike-through");
6869 staticpro (&QCstrike_through
);
6870 QCbox
= intern (":box");
6872 QCinherit
= intern (":inherit");
6873 staticpro (&QCinherit
);
6875 /* Symbols used for Lisp face attribute values. */
6876 QCcolor
= intern (":color");
6877 staticpro (&QCcolor
);
6878 QCline_width
= intern (":line-width");
6879 staticpro (&QCline_width
);
6880 QCstyle
= intern (":style");
6881 staticpro (&QCstyle
);
6882 Qreleased_button
= intern ("released-button");
6883 staticpro (&Qreleased_button
);
6884 Qpressed_button
= intern ("pressed-button");
6885 staticpro (&Qpressed_button
);
6886 Qnormal
= intern ("normal");
6887 staticpro (&Qnormal
);
6888 Qultra_light
= intern ("ultra-light");
6889 staticpro (&Qultra_light
);
6890 Qextra_light
= intern ("extra-light");
6891 staticpro (&Qextra_light
);
6892 Qlight
= intern ("light");
6893 staticpro (&Qlight
);
6894 Qsemi_light
= intern ("semi-light");
6895 staticpro (&Qsemi_light
);
6896 Qsemi_bold
= intern ("semi-bold");
6897 staticpro (&Qsemi_bold
);
6898 Qbold
= intern ("bold");
6900 Qextra_bold
= intern ("extra-bold");
6901 staticpro (&Qextra_bold
);
6902 Qultra_bold
= intern ("ultra-bold");
6903 staticpro (&Qultra_bold
);
6904 Qoblique
= intern ("oblique");
6905 staticpro (&Qoblique
);
6906 Qitalic
= intern ("italic");
6907 staticpro (&Qitalic
);
6908 Qreverse_oblique
= intern ("reverse-oblique");
6909 staticpro (&Qreverse_oblique
);
6910 Qreverse_italic
= intern ("reverse-italic");
6911 staticpro (&Qreverse_italic
);
6912 Qultra_condensed
= intern ("ultra-condensed");
6913 staticpro (&Qultra_condensed
);
6914 Qextra_condensed
= intern ("extra-condensed");
6915 staticpro (&Qextra_condensed
);
6916 Qcondensed
= intern ("condensed");
6917 staticpro (&Qcondensed
);
6918 Qsemi_condensed
= intern ("semi-condensed");
6919 staticpro (&Qsemi_condensed
);
6920 Qsemi_expanded
= intern ("semi-expanded");
6921 staticpro (&Qsemi_expanded
);
6922 Qexpanded
= intern ("expanded");
6923 staticpro (&Qexpanded
);
6924 Qextra_expanded
= intern ("extra-expanded");
6925 staticpro (&Qextra_expanded
);
6926 Qultra_expanded
= intern ("ultra-expanded");
6927 staticpro (&Qultra_expanded
);
6928 Qbackground_color
= intern ("background-color");
6929 staticpro (&Qbackground_color
);
6930 Qforeground_color
= intern ("foreground-color");
6931 staticpro (&Qforeground_color
);
6932 Qunspecified
= intern ("unspecified");
6933 staticpro (&Qunspecified
);
6935 Qface_alias
= intern ("face-alias");
6936 staticpro (&Qface_alias
);
6937 Qdefault
= intern ("default");
6938 staticpro (&Qdefault
);
6939 Qtool_bar
= intern ("tool-bar");
6940 staticpro (&Qtool_bar
);
6941 Qregion
= intern ("region");
6942 staticpro (&Qregion
);
6943 Qfringe
= intern ("fringe");
6944 staticpro (&Qfringe
);
6945 Qheader_line
= intern ("header-line");
6946 staticpro (&Qheader_line
);
6947 Qscroll_bar
= intern ("scroll-bar");
6948 staticpro (&Qscroll_bar
);
6949 Qmenu
= intern ("menu");
6951 Qcursor
= intern ("cursor");
6952 staticpro (&Qcursor
);
6953 Qborder
= intern ("border");
6954 staticpro (&Qborder
);
6955 Qmouse
= intern ("mouse");
6956 staticpro (&Qmouse
);
6957 Qtty_color_desc
= intern ("tty-color-desc");
6958 staticpro (&Qtty_color_desc
);
6959 Qtty_color_by_index
= intern ("tty-color-by-index");
6960 staticpro (&Qtty_color_by_index
);
6961 Qtty_color_alist
= intern ("tty-color-alist");
6962 staticpro (&Qtty_color_alist
);
6964 Vface_alternative_font_family_alist
= Qnil
;
6965 staticpro (&Vface_alternative_font_family_alist
);
6967 defsubr (&Sinternal_make_lisp_face
);
6968 defsubr (&Sinternal_lisp_face_p
);
6969 defsubr (&Sinternal_set_lisp_face_attribute
);
6970 #ifdef HAVE_WINDOW_SYSTEM
6971 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6973 defsubr (&Scolor_gray_p
);
6974 defsubr (&Scolor_supported_p
);
6975 defsubr (&Sinternal_get_lisp_face_attribute
);
6976 defsubr (&Sinternal_lisp_face_attribute_values
);
6977 defsubr (&Sinternal_lisp_face_equal_p
);
6978 defsubr (&Sinternal_lisp_face_empty_p
);
6979 defsubr (&Sinternal_copy_lisp_face
);
6980 defsubr (&Sinternal_merge_in_global_face
);
6981 defsubr (&Sface_font
);
6982 defsubr (&Sframe_face_alist
);
6983 defsubr (&Sinternal_set_font_selection_order
);
6984 defsubr (&Sinternal_set_alternative_font_family_alist
);
6986 defsubr (&Sdump_face
);
6987 defsubr (&Sshow_face_resources
);
6988 #endif /* GLYPH_DEBUG */
6989 defsubr (&Sclear_face_cache
);
6990 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6992 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6993 defsubr (&Sdump_colors
);
6996 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6997 "*Limit for font matching.\n\
6998 If an integer > 0, font matching functions won't load more than\n\
6999 that number of fonts when searching for a matching font.");
7000 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
7002 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
7003 "List of global face definitions (for internal use only.)");
7004 Vface_new_frame_defaults
= Qnil
;
7006 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
7007 "*Default stipple pattern used on monochrome displays.\n\
7008 This stipple pattern is used on monochrome displays\n\
7009 instead of shades of gray for a face background color.\n\
7010 See `set-face-stipple' for possible values for this variable.");
7011 Vface_default_stipple
= build_string ("gray3");
7013 DEFVAR_LISP ("tty-defined-color-alist", &Vtty_defined_color_alist
,
7014 "An alist of defined terminal colors and their RGB values.");
7015 Vtty_defined_color_alist
= Qnil
;
7019 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
7020 "Allowed scalable fonts.\n\
7021 A value of nil means don't allow any scalable fonts.\n\
7022 A value of t means allow any scalable font.\n\
7023 Otherwise, value must be a list of regular expressions. A font may be\n\
7024 scaled if its name matches a regular expression in the list.");
7026 /* Windows uses mainly truetype fonts, so disallowing scalable fonts
7027 by default limits the fonts available severely. */
7028 Vscalable_fonts_allowed
= Qt
;
7030 Vscalable_fonts_allowed
= Qnil
;
7032 #endif /* SCALABLE_FONTS */
7034 #ifdef HAVE_WINDOW_SYSTEM
7035 defsubr (&Sbitmap_spec_p
);
7036 defsubr (&Sx_list_fonts
);
7037 defsubr (&Sinternal_face_x_get_resource
);
7038 defsubr (&Sx_family_fonts
);
7039 defsubr (&Sx_font_family_list
);
7040 #endif /* HAVE_WINDOW_SYSTEM */