1 /* xfaces.c -- "Face" primitives.
2 Copyright (C) 1993, 1994, 1998, 1999 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 Faces are frame-local by nature because Emacs allows to define the
69 same named face (face names are symbols) differently for different
70 frames. Each frame has an alist of face definitions for all named
71 faces. The value of a named face in such an alist is a Lisp vector
72 with the symbol `face' in slot 0, and a slot for each of the face
73 attributes mentioned above.
75 There is also a global face alist `Vface_new_frame_defaults'. Face
76 definitions from this list are used to initialize faces of newly
79 A face doesn't have to specify all attributes. Those not specified
80 have a value of `unspecified'. Faces specifying all attributes but
81 the 14th are called `fully-specified'.
86 The display style of a given character in the text is determined by
87 combining several faces. This process is called `face merging'.
88 Any aspect of the display style that isn't specified by overlays or
89 text properties is taken from the `default' face. Since it is made
90 sure that the default face is always fully-specified, face merging
91 always results in a fully-specified face.
96 After all face attributes for a character have been determined by
97 merging faces of that character, that face is `realized'. The
98 realization process maps face attributes to what is physically
99 available on the system where Emacs runs. The result is a
100 `realized face' in form of a struct face which is stored in the
101 face cache of the frame on which it was realized.
103 Face realization is done in the context of the character to display
104 because different fonts may be used for different characters. In
105 other words, for characters that have different font
106 specifications, different realized faces are needed to display
109 Font specification is done by fontsets. See the comment in
110 fontset.c for the details. In the current implementation, all ASCII
111 characters share the same font in a fontset.
113 Faces are at first realized for ASCII characters, and, at that
114 time, assigned a specific realized fontset. Hereafter, we call
115 such a face as `ASCII face'. When a face for a multibyte character
116 is realized, it inherits (thus shares) a fontset of an ASCII face
117 that has the same attributes other than font-related ones.
119 Thus, all realzied face have a realized fontset.
124 Unibyte text (i.e. raw 8-bit characters) is displayed with the same
125 font as ASCII characters. That is because it is expected that
126 unibyte text users specify a font that is suitable both for ASCII
127 and raw 8-bit characters.
132 Font selection tries to find the best available matching font for a
133 given (character, face) combination.
135 If the face specifies a fontset name, that fontset determines a
136 pattern for fonts of the given character. If the face specifies a
137 font name or the other font-related attributes, a fontset is
138 realized from the default fontset. In that case, that
139 specification determines a pattern for ASCII characters and the
140 default fontset determines a pattern for multibyte characters.
142 Available fonts on the system on which Emacs runs are then matched
143 against the font pattern. The result of font selection is the best
144 match for the given face attributes in this font list.
146 Font selection can be influenced by the user.
148 1. The user can specify the relative importance he gives the face
149 attributes width, height, weight, and slant by setting
150 face-font-selection-order (faces.el) to a list of face attribute
151 names. The default is '(:width :height :weight :slant), and means
152 that font selection first tries to find a good match for the font
153 width specified by a face, then---within fonts with that
154 width---tries to find a best match for the specified font height,
157 2. Setting face-alternative-font-family-alist allows the user to
158 specify alternative font families to try if a family specified by a
162 Character compositition.
164 Usually, the realization process is already finished when Emacs
165 actually reflects the desired glyph matrix on the screen. However,
166 on displaying a composition (sequence of characters to be composed
167 on the screen), a suitable font for the components of the
168 composition is selected and realized while drawing them on the
169 screen, i.e. the realization process is delayed but in principle
173 Initialization of basic faces.
175 The faces `default', `modeline' are considered `basic faces'.
176 When redisplay happens the first time for a newly created frame,
177 basic faces are realized for CHARSET_ASCII. Frame parameters are
178 used to fill in unspecified attributes of the default face. */
180 /* Define SCALABLE_FONTS to a non-zero value to enable scalable
181 font use. Define it to zero to disable scalable font use.
183 Use of too many or too large scalable fonts can crash XFree86
184 servers. That's why I've put the code dealing with scalable fonts
187 #define SCALABLE_FONTS 1
190 #include <sys/types.h>
191 #include <sys/stat.h>
196 #ifdef HAVE_X_WINDOWS
201 #include <Xm/XmStrDefs.h>
202 #endif /* USE_MOTIF */
212 /* Redefine X specifics to W32 equivalents to avoid cluttering the
213 code with #ifdef blocks. */
214 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
215 #define x_display_info w32_display_info
216 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
217 #define check_x check_w32
218 #define x_list_fonts w32_list_fonts
219 #define GCGraphicsExposures 0
220 /* For historic reasons, FONT_WIDTH refers to average width on W32,
221 not maximum as on X. Redefine here. */
222 #define FONT_WIDTH FONT_MAX_WIDTH
226 #include "dispextern.h"
227 #include "blockinput.h"
229 #include "intervals.h"
231 #ifdef HAVE_X_WINDOWS
233 /* Compensate for a bug in Xos.h on some systems, on which it requires
234 time.h. On some such systems, Xos.h tries to redefine struct
235 timeval and struct timezone if USG is #defined while it is
238 #ifdef XOS_NEEDS_TIME_H
244 #else /* not XOS_NEEDS_TIME_H */
246 #endif /* not XOS_NEEDS_TIME_H */
248 #endif /* HAVE_X_WINDOWS */
252 #include "keyboard.h"
255 #define max(A, B) ((A) > (B) ? (A) : (B))
256 #define min(A, B) ((A) < (B) ? (A) : (B))
257 #define abs(X) ((X) < 0 ? -(X) : (X))
260 /* Non-zero if face attribute ATTR is unspecified. */
262 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
264 /* Value is the number of elements of VECTOR. */
266 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
268 /* Make a copy of string S on the stack using alloca. Value is a pointer
271 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
273 /* Make a copy of the contents of Lisp string S on the stack using
274 alloca. Value is a pointer to the copy. */
276 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
278 /* Size of hash table of realized faces in face caches (should be a
281 #define FACE_CACHE_BUCKETS_SIZE 1001
283 /* A definition of XColor for non-X frames. */
284 #ifndef HAVE_X_WINDOWS
287 unsigned short red
, green
, blue
;
293 /* Keyword symbols used for face attribute names. */
295 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
296 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
297 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
298 Lisp_Object QCreverse_video
;
299 Lisp_Object QCoverline
, QCstrike_through
, QCbox
;
301 /* Symbols used for attribute values. */
303 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
304 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
305 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
306 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
307 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
308 Lisp_Object Qultra_expanded
;
309 Lisp_Object Qreleased_button
, Qpressed_button
;
310 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
311 Lisp_Object Qunspecified
;
313 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
315 /* The name of the function to call when the background of the frame
316 has changed, frame_update_face_colors. */
318 Lisp_Object Qframe_update_face_colors
;
320 /* Names of basic faces. */
322 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
323 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
324 extern Lisp_Object Qmode_line
;
326 /* The symbol `face-alias'. A symbols having that property is an
327 alias for another face. Value of the property is the name of
330 Lisp_Object Qface_alias
;
332 /* Names of frame parameters related to faces. */
334 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
335 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
337 /* Default stipple pattern used on monochrome displays. This stipple
338 pattern is used on monochrome displays instead of shades of gray
339 for a face background color. See `set-face-stipple' for possible
340 values for this variable. */
342 Lisp_Object Vface_default_stipple
;
344 /* Alist of alternative font families. Each element is of the form
345 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
346 try FAMILY1, then FAMILY2, ... */
348 Lisp_Object Vface_alternative_font_family_alist
;
350 /* Allowed scalable fonts. A value of nil means don't allow any
351 scalable fonts. A value of t means allow the use of any scalable
352 font. Otherwise, value must be a list of regular expressions. A
353 font may be scaled if its name matches a regular expression in the
357 Lisp_Object Vscalable_fonts_allowed
;
360 /* Maximum number of fonts to consider in font_list. If not an
361 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
363 Lisp_Object Vfont_list_limit
;
364 #define DEFAULT_FONT_LIST_LIMIT 100
366 /* The symbols `foreground-color' and `background-color' which can be
367 used as part of a `face' property. This is for compatibility with
370 Lisp_Object Qforeground_color
, Qbackground_color
;
372 /* The symbols `face' and `mouse-face' used as text properties. */
375 extern Lisp_Object Qmouse_face
;
377 /* Error symbol for wrong_type_argument in load_pixmap. */
379 Lisp_Object Qbitmap_spec_p
;
381 /* Alist of global face definitions. Each element is of the form
382 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
383 is a Lisp vector of face attributes. These faces are used
384 to initialize faces for new frames. */
386 Lisp_Object Vface_new_frame_defaults
;
388 /* The next ID to assign to Lisp faces. */
390 static int next_lface_id
;
392 /* A vector mapping Lisp face Id's to face names. */
394 static Lisp_Object
*lface_id_to_name
;
395 static int lface_id_to_name_size
;
397 /* tty color-related functions (defined on lisp/term/tty-colors.el). */
398 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
;
400 /* Counter for calls to clear_face_cache. If this counter reaches
401 CLEAR_FONT_TABLE_COUNT, and a frame has more than
402 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
404 static int clear_font_table_count
;
405 #define CLEAR_FONT_TABLE_COUNT 100
406 #define CLEAR_FONT_TABLE_NFONTS 10
408 /* Non-zero means face attributes have been changed since the last
409 redisplay. Used in redisplay_internal. */
411 int face_change_count
;
413 /* Non-zero means don't display bold text if a face's foreground
414 and background colors are the inverse of the default colors of the
415 display. This is a kluge to suppress `bold black' foreground text
416 which is hard to read on an LCD monitor. */
418 int tty_suppress_bold_inverse_default_colors_p
;
420 /* The total number of colors currently allocated. */
423 static int ncolors_allocated
;
424 static int npixmaps_allocated
;
430 /* Function prototypes. */
435 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
436 static int may_use_scalable_font_p
P_ ((struct font_name
*, char *));
437 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
438 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
440 static int first_font_matching
P_ ((struct frame
*f
, char *,
441 struct font_name
*));
442 static int x_face_list_fonts
P_ ((struct frame
*, char *,
443 struct font_name
*, int, int, int));
444 static int font_scalable_p
P_ ((struct font_name
*));
445 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
446 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
447 static unsigned char *xstrlwr
P_ ((unsigned char *));
448 static void signal_error
P_ ((char *, Lisp_Object
));
449 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
450 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
451 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
452 static void free_face_colors
P_ ((struct frame
*, struct face
*));
453 static int face_color_gray_p
P_ ((struct frame
*, char *));
454 static char *build_font_name
P_ ((struct font_name
*));
455 static void free_font_names
P_ ((struct font_name
*, int));
456 static int sorted_font_list
P_ ((struct frame
*, char *,
457 int (*cmpfn
) P_ ((const void *, const void *)),
458 struct font_name
**));
459 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
460 Lisp_Object
, struct font_name
**));
461 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
,
462 Lisp_Object
, Lisp_Object
, struct font_name
**));
463 static int cmp_font_names
P_ ((const void *, const void *));
464 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
465 struct face
*, int));
466 static struct face
*realize_x_face
P_ ((struct face_cache
*,
467 Lisp_Object
*, int, struct face
*));
468 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
469 Lisp_Object
*, int));
470 static int realize_basic_faces
P_ ((struct frame
*));
471 static int realize_default_face
P_ ((struct frame
*));
472 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
473 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
474 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
475 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
476 static unsigned lface_hash
P_ ((Lisp_Object
*));
477 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
478 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
479 static void free_realized_face
P_ ((struct frame
*, struct face
*));
480 static void clear_face_gcs
P_ ((struct face_cache
*));
481 static void free_face_cache
P_ ((struct face_cache
*));
482 static int face_numeric_weight
P_ ((Lisp_Object
));
483 static int face_numeric_slant
P_ ((Lisp_Object
));
484 static int face_numeric_swidth
P_ ((Lisp_Object
));
485 static int face_fontset
P_ ((Lisp_Object
*));
486 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int));
487 static void merge_face_vectors
P_ ((Lisp_Object
*from
, Lisp_Object
*));
488 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
490 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
491 Lisp_Object
, int, int));
492 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
493 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
494 static void free_realized_faces
P_ ((struct face_cache
*));
495 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
496 struct font_name
*, int));
497 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
498 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
499 static int xlfd_numeric_slant
P_ ((struct font_name
*));
500 static int xlfd_numeric_weight
P_ ((struct font_name
*));
501 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
502 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
503 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
504 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
505 static int xlfd_fixed_p
P_ ((struct font_name
*));
506 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
508 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
509 struct font_name
*, int,
511 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
512 struct font_name
*, int));
514 #ifdef HAVE_WINDOW_SYSTEM
516 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
517 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
518 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
519 int (*cmpfn
) P_ ((const void *, const void *))));
520 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
521 static void x_free_gc
P_ ((struct frame
*, GC
));
522 static void clear_font_table
P_ ((struct frame
*));
525 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
526 #endif /* WINDOWSNT */
528 #endif /* HAVE_WINDOW_SYSTEM */
531 /***********************************************************************
533 ***********************************************************************/
535 #ifdef HAVE_X_WINDOWS
537 #ifdef DEBUG_X_COLORS
539 /* The following is a poor mans infrastructure for debugging X color
540 allocation problems on displays with PseudoColor-8. Some X servers
541 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
542 color reference counts completely so that they don't signal an
543 error when a color is freed whose reference count is already 0.
544 Other X servers do. To help me debug this, the following code
545 implements a simple reference counting schema of its own, for a
546 single display/screen. --gerd. */
548 /* Reference counts for pixel colors. */
550 int color_count
[256];
552 /* Register color PIXEL as allocated. */
555 register_color (pixel
)
558 xassert (pixel
< 256);
559 ++color_count
[pixel
];
563 /* Register color PIXEL as deallocated. */
566 unregister_color (pixel
)
569 xassert (pixel
< 256);
570 if (color_count
[pixel
] > 0)
571 --color_count
[pixel
];
577 /* Register N colors from PIXELS as deallocated. */
580 unregister_colors (pixels
, n
)
581 unsigned long *pixels
;
585 for (i
= 0; i
< n
; ++i
)
586 unregister_color (pixels
[i
]);
590 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
591 "Dump currently allocated colors and their reference counts to stderr.")
596 fputc ('\n', stderr
);
598 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
601 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
604 fputc ('\n', stderr
);
606 fputc ('\t', stderr
);
610 fputc ('\n', stderr
);
615 #endif /* DEBUG_X_COLORS */
617 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
618 color values. Interrupt input must be blocked when this function
622 x_free_colors (f
, pixels
, npixels
)
624 unsigned long *pixels
;
627 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
629 /* If display has an immutable color map, freeing colors is not
630 necessary and some servers don't allow it. So don't do it. */
631 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
633 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
635 #ifdef DEBUG_X_COLORS
636 unregister_colors (pixels
, npixels
);
642 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
643 color values. Interrupt input must be blocked when this function
647 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
651 unsigned long *pixels
;
654 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
655 int class = dpyinfo
->visual
->class;
657 /* If display has an immutable color map, freeing colors is not
658 necessary and some servers don't allow it. So don't do it. */
659 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
661 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
662 #ifdef DEBUG_X_COLORS
663 unregister_colors (pixels
, npixels
);
669 /* Create and return a GC for use on frame F. GC values and mask
670 are given by XGCV and MASK. */
673 x_create_gc (f
, mask
, xgcv
)
680 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
687 /* Free GC which was used on frame F. */
695 xassert (--ngcs
>= 0);
696 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
700 #endif /* HAVE_X_WINDOWS */
703 /* W32 emulation of GCs */
706 x_create_gc (f
, mask
, xgcv
)
713 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
720 /* Free GC which was used on frame F. */
728 xassert (--ngcs
>= 0);
733 #endif /* WINDOWSNT */
735 /* Like stricmp. Used to compare parts of font names which are in
740 unsigned char *s1
, *s2
;
744 unsigned char c1
= tolower (*s1
);
745 unsigned char c2
= tolower (*s2
);
747 return c1
< c2
? -1 : 1;
752 return *s2
== 0 ? 0 : -1;
757 /* Like strlwr, which might not always be available. */
759 static unsigned char *
763 unsigned char *p
= s
;
772 /* Signal `error' with message S, and additional argument ARG. */
775 signal_error (s
, arg
)
779 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
783 /* If FRAME is nil, return a pointer to the selected frame.
784 Otherwise, check that FRAME is a live frame, and return a pointer
785 to it. NPARAM is the parameter number of FRAME, for
786 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
787 Lisp function definitions. */
789 static INLINE
struct frame
*
790 frame_or_selected_frame (frame
, nparam
)
795 frame
= selected_frame
;
797 CHECK_LIVE_FRAME (frame
, nparam
);
798 return XFRAME (frame
);
802 /***********************************************************************
804 ***********************************************************************/
806 /* Initialize face cache and basic faces for frame F. */
812 /* Make a face cache, if F doesn't have one. */
813 if (FRAME_FACE_CACHE (f
) == NULL
)
814 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
816 #ifdef HAVE_WINDOW_SYSTEM
817 /* Make the image cache. */
818 if (FRAME_WINDOW_P (f
))
820 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
821 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
822 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
824 #endif /* HAVE_WINDOW_SYSTEM */
826 /* Realize basic faces. Must have enough information in frame
827 parameters to realize basic faces at this point. */
828 #ifdef HAVE_X_WINDOWS
829 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
832 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
834 if (!realize_basic_faces (f
))
839 /* Free face cache of frame F. Called from Fdelete_frame. */
845 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
849 free_face_cache (face_cache
);
850 FRAME_FACE_CACHE (f
) = NULL
;
853 #ifdef HAVE_WINDOW_SYSTEM
854 if (FRAME_WINDOW_P (f
))
856 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
859 --image_cache
->refcount
;
860 if (image_cache
->refcount
== 0)
861 free_image_cache (f
);
864 #endif /* HAVE_WINDOW_SYSTEM */
868 /* Clear face caches, and recompute basic faces for frame F. Call
869 this after changing frame parameters on which those faces depend,
870 or when realized faces have been freed due to changing attributes
874 recompute_basic_faces (f
)
877 if (FRAME_FACE_CACHE (f
))
879 clear_face_cache (0);
880 if (!realize_basic_faces (f
))
886 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
887 try to free unused fonts, too. */
890 clear_face_cache (clear_fonts_p
)
893 #ifdef HAVE_WINDOW_SYSTEM
894 Lisp_Object tail
, frame
;
898 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
900 /* From time to time see if we can unload some fonts. This also
901 frees all realized faces on all frames. Fonts needed by
902 faces will be loaded again when faces are realized again. */
903 clear_font_table_count
= 0;
905 FOR_EACH_FRAME (tail
, frame
)
908 if (FRAME_WINDOW_P (f
)
909 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
911 free_all_realized_faces (frame
);
912 clear_font_table (f
);
918 /* Clear GCs of realized faces. */
919 FOR_EACH_FRAME (tail
, frame
)
922 if (FRAME_WINDOW_P (f
))
924 clear_face_gcs (FRAME_FACE_CACHE (f
));
925 clear_image_cache (f
, 0);
929 #endif /* HAVE_WINDOW_SYSTEM */
933 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
934 "Clear face caches on all frames.\n\
935 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
937 Lisp_Object thorougly
;
939 clear_face_cache (!NILP (thorougly
));
945 #ifdef HAVE_WINDOW_SYSTEM
948 /* Remove those fonts from the font table of frame F exept for the
949 default ASCII font for the frame. Called from clear_face_cache
950 from time to time. */
956 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
959 xassert (FRAME_WINDOW_P (f
));
961 /* Free those fonts that are not used by the frame F as the default. */
962 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
964 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
967 || font_info
->font
== FRAME_FONT (f
))
971 if (font_info
->full_name
!= font_info
->name
)
972 xfree (font_info
->full_name
);
973 xfree (font_info
->name
);
977 #ifdef HAVE_X_WINDOWS
978 XFreeFont (dpyinfo
->display
, font_info
->font
);
981 w32_unload_font (dpyinfo
, font_info
->font
);
985 /* Mark font table slot free. */
986 font_info
->font
= NULL
;
987 font_info
->name
= font_info
->full_name
= NULL
;
991 #endif /* HAVE_WINDOW_SYSTEM */
995 /***********************************************************************
997 ***********************************************************************/
999 #ifdef HAVE_WINDOW_SYSTEM
1001 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1002 "Value is non-nil if OBJECT is a valid bitmap specification.\n\
1003 A bitmap specification is either a string, a file name, or a list\n\
1004 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\
1005 HEIGHT is its height, and DATA is a string containing the bits of\n\
1006 the pixmap. Bits are stored row by row, each row occupies\n\
1007 (WIDTH + 7)/8 bytes.")
1013 if (STRINGP (object
))
1014 /* If OBJECT is a string, it's a file name. */
1016 else if (CONSP (object
))
1018 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1019 HEIGHT must be integers > 0, and DATA must be string large
1020 enough to hold a bitmap of the specified size. */
1021 Lisp_Object width
, height
, data
;
1023 height
= width
= data
= Qnil
;
1027 width
= XCAR (object
);
1028 object
= XCDR (object
);
1031 height
= XCAR (object
);
1032 object
= XCDR (object
);
1034 data
= XCAR (object
);
1038 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1040 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1042 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* XINT (height
))
1047 return pixmap_p
? Qt
: Qnil
;
1051 /* Load a bitmap according to NAME (which is either a file name or a
1052 pixmap spec) for use on frame F. Value is the bitmap_id (see
1053 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1054 bitmap cannot be loaded, display a message saying so, and return
1055 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1056 if these pointers are not null. */
1059 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1062 unsigned int *w_ptr
, *h_ptr
;
1070 tem
= Fbitmap_spec_p (name
);
1072 wrong_type_argument (Qbitmap_spec_p
, name
);
1077 /* Decode a bitmap spec into a bitmap. */
1082 w
= XINT (Fcar (name
));
1083 h
= XINT (Fcar (Fcdr (name
)));
1084 bits
= Fcar (Fcdr (Fcdr (name
)));
1086 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
1091 /* It must be a string -- a file name. */
1092 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1098 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1109 ++npixmaps_allocated
;
1112 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1115 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1121 #endif /* HAVE_WINDOW_SYSTEM */
1125 /***********************************************************************
1127 ***********************************************************************/
1129 #ifdef HAVE_WINDOW_SYSTEM
1131 /* Update the line_height of frame F. Return non-zero if line height
1135 frame_update_line_height (f
)
1138 int line_height
, changed_p
;
1140 line_height
= FONT_HEIGHT (FRAME_FONT (f
));
1141 changed_p
= line_height
!= FRAME_LINE_HEIGHT (f
);
1142 FRAME_LINE_HEIGHT (f
) = line_height
;
1146 #endif /* HAVE_WINDOW_SYSTEM */
1149 /***********************************************************************
1151 ***********************************************************************/
1153 #ifdef HAVE_WINDOW_SYSTEM
1155 /* Load font of face FACE which is used on frame F to display
1156 character C. The name of the font to load is determined by lface
1157 and fontset of FACE. */
1160 load_face_font (f
, face
, c
)
1165 struct font_info
*font_info
= NULL
;
1168 face
->font_info_id
= -1;
1171 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
);
1176 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1181 face
->font_info_id
= font_info
->font_idx
;
1182 face
->font
= font_info
->font
;
1183 face
->font_name
= font_info
->full_name
;
1186 x_free_gc (f
, face
->gc
);
1191 add_to_log ("Unable to load font %s",
1192 build_string (font_name
), Qnil
);
1196 #endif /* HAVE_WINDOW_SYSTEM */
1200 /***********************************************************************
1202 ***********************************************************************/
1204 /* A version of defined_color for non-X frames. */
1207 tty_defined_color (f
, color_name
, color_def
, alloc
)
1213 Lisp_Object color_desc
;
1214 unsigned long color_idx
= FACE_TTY_DEFAULT_COLOR
,
1215 red
= 0, green
= 0, blue
= 0;
1218 if (*color_name
&& !NILP (Ffboundp (Qtty_color_desc
)))
1222 XSETFRAME (frame
, f
);
1224 color_desc
= call2 (Qtty_color_desc
, build_string (color_name
), frame
);
1225 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1227 color_idx
= XINT (XCAR (XCDR (color_desc
)));
1228 if (CONSP (XCDR (XCDR (color_desc
))))
1230 red
= XINT (XCAR (XCDR (XCDR (color_desc
))));
1231 green
= XINT (XCAR (XCDR (XCDR (XCDR (color_desc
)))));
1232 blue
= XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc
))))));
1236 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1237 /* We were called early during startup, and the colors are not
1238 yet set up in tty-defined-color-alist. Don't return a failure
1239 indication, since this produces the annoying "Unable to
1240 load color" messages in the *Messages* buffer. */
1243 if (color_idx
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1245 if (strcmp (color_name
, "unspecified-fg") == 0)
1246 color_idx
= FACE_TTY_DEFAULT_FG_COLOR
;
1247 else if (strcmp (color_name
, "unspecified-bg") == 0)
1248 color_idx
= FACE_TTY_DEFAULT_BG_COLOR
;
1251 if (color_idx
!= FACE_TTY_DEFAULT_COLOR
)
1254 color_def
->pixel
= color_idx
;
1255 color_def
->red
= red
;
1256 color_def
->green
= green
;
1257 color_def
->blue
= blue
;
1263 /* Decide if color named COLOR_NAME is valid for the display
1264 associated with the frame F; if so, return the rgb values in
1265 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1267 This does the right thing for any type of frame. */
1270 defined_color (f
, color_name
, color_def
, alloc
)
1276 if (!FRAME_WINDOW_P (f
))
1277 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1278 #ifdef HAVE_X_WINDOWS
1279 else if (FRAME_X_P (f
))
1280 return x_defined_color (f
, color_name
, color_def
, alloc
);
1283 else if (FRAME_W32_P (f
))
1284 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1287 else if (FRAME_MAC_P (f
))
1288 /* FIXME: mac_defined_color doesn't exist! */
1289 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1296 /* Given the index IDX of a tty color on frame F, return its name, a
1300 tty_color_name (f
, idx
)
1304 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1307 Lisp_Object coldesc
;
1309 XSETFRAME (frame
, f
);
1310 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1312 if (!NILP (coldesc
))
1313 return XCAR (coldesc
);
1316 /* We can have an MSDOG frame under -nw for a short window of
1317 opportunity before internal_terminal_init is called. DTRT. */
1318 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1319 return msdos_stdcolor_name (idx
);
1322 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1323 return build_string (unspecified_fg
);
1324 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1325 return build_string (unspecified_bg
);
1328 return vga_stdcolor_name (idx
);
1331 return Qunspecified
;
1335 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1336 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1339 face_color_gray_p (f
, color_name
)
1346 if (defined_color (f
, color_name
, &color
, 0))
1347 gray_p
= ((abs (color
.red
- color
.green
)
1348 < max (color
.red
, color
.green
) / 20)
1349 && (abs (color
.green
- color
.blue
)
1350 < max (color
.green
, color
.blue
) / 20)
1351 && (abs (color
.blue
- color
.red
)
1352 < max (color
.blue
, color
.red
) / 20));
1360 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1361 BACKGROUND_P non-zero means the color will be used as background
1365 face_color_supported_p (f
, color_name
, background_p
)
1373 XSETFRAME (frame
, f
);
1374 return (FRAME_WINDOW_P (f
)
1375 ? (!NILP (Fxw_display_color_p (frame
))
1376 || xstricmp (color_name
, "black") == 0
1377 || xstricmp (color_name
, "white") == 0
1379 && face_color_gray_p (f
, color_name
))
1380 || (!NILP (Fx_display_grayscale_p (frame
))
1381 && face_color_gray_p (f
, color_name
)))
1382 : tty_defined_color (f
, color_name
, ¬_used
, 0));
1386 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1387 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1388 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1389 If FRAME is nil or omitted, use the selected frame.")
1391 Lisp_Object color
, frame
;
1395 CHECK_FRAME (frame
, 0);
1396 CHECK_STRING (color
, 0);
1398 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1402 DEFUN ("color-supported-p", Fcolor_supported_p
,
1403 Scolor_supported_p
, 2, 3, 0,
1404 "Return non-nil if COLOR can be displayed on FRAME.\n\
1405 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1406 If FRAME is nil or omitted, use the selected frame.\n\
1407 COLOR must be a valid color name.")
1408 (color
, frame
, background_p
)
1409 Lisp_Object frame
, color
, background_p
;
1413 CHECK_FRAME (frame
, 0);
1414 CHECK_STRING (color
, 0);
1416 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1422 /* Load color with name NAME for use by face FACE on frame F.
1423 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1424 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1425 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1426 pixel color. If color cannot be loaded, display a message, and
1427 return the foreground, background or underline color of F, but
1428 record that fact in flags of the face so that we don't try to free
1432 load_color (f
, face
, name
, target_index
)
1436 enum lface_attribute_index target_index
;
1440 xassert (STRINGP (name
));
1441 xassert (target_index
== LFACE_FOREGROUND_INDEX
1442 || target_index
== LFACE_BACKGROUND_INDEX
1443 || target_index
== LFACE_UNDERLINE_INDEX
1444 || target_index
== LFACE_OVERLINE_INDEX
1445 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1446 || target_index
== LFACE_BOX_INDEX
);
1448 /* if the color map is full, defined_color will return a best match
1449 to the values in an existing cell. */
1450 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1452 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1454 switch (target_index
)
1456 case LFACE_FOREGROUND_INDEX
:
1457 face
->foreground_defaulted_p
= 1;
1458 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1461 case LFACE_BACKGROUND_INDEX
:
1462 face
->background_defaulted_p
= 1;
1463 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1466 case LFACE_UNDERLINE_INDEX
:
1467 face
->underline_defaulted_p
= 1;
1468 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1471 case LFACE_OVERLINE_INDEX
:
1472 face
->overline_color_defaulted_p
= 1;
1473 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1476 case LFACE_STRIKE_THROUGH_INDEX
:
1477 face
->strike_through_color_defaulted_p
= 1;
1478 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1481 case LFACE_BOX_INDEX
:
1482 face
->box_color_defaulted_p
= 1;
1483 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1492 ++ncolors_allocated
;
1499 #ifdef HAVE_WINDOW_SYSTEM
1501 /* Load colors for face FACE which is used on frame F. Colors are
1502 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1503 of ATTRS. If the background color specified is not supported on F,
1504 try to emulate gray colors with a stipple from Vface_default_stipple. */
1507 load_face_colors (f
, face
, attrs
)
1514 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1515 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1517 /* Swap colors if face is inverse-video. */
1518 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1526 /* Check for support for foreground, not for background because
1527 face_color_supported_p is smart enough to know that grays are
1528 "supported" as background because we are supposed to use stipple
1530 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1531 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1533 x_destroy_bitmap (f
, face
->stipple
);
1534 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1535 &face
->pixmap_w
, &face
->pixmap_h
);
1538 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1539 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1543 /* Free color PIXEL on frame F. */
1546 unload_color (f
, pixel
)
1548 unsigned long pixel
;
1550 #ifdef HAVE_X_WINDOWS
1552 x_free_colors (f
, &pixel
, 1);
1558 /* Free colors allocated for FACE. */
1561 free_face_colors (f
, face
)
1565 #ifdef HAVE_X_WINDOWS
1568 if (!face
->foreground_defaulted_p
)
1570 x_free_colors (f
, &face
->foreground
, 1);
1571 IF_DEBUG (--ncolors_allocated
);
1574 if (!face
->background_defaulted_p
)
1576 x_free_colors (f
, &face
->background
, 1);
1577 IF_DEBUG (--ncolors_allocated
);
1580 if (face
->underline_p
1581 && !face
->underline_defaulted_p
)
1583 x_free_colors (f
, &face
->underline_color
, 1);
1584 IF_DEBUG (--ncolors_allocated
);
1587 if (face
->overline_p
1588 && !face
->overline_color_defaulted_p
)
1590 x_free_colors (f
, &face
->overline_color
, 1);
1591 IF_DEBUG (--ncolors_allocated
);
1594 if (face
->strike_through_p
1595 && !face
->strike_through_color_defaulted_p
)
1597 x_free_colors (f
, &face
->strike_through_color
, 1);
1598 IF_DEBUG (--ncolors_allocated
);
1601 if (face
->box
!= FACE_NO_BOX
1602 && !face
->box_color_defaulted_p
)
1604 x_free_colors (f
, &face
->box_color
, 1);
1605 IF_DEBUG (--ncolors_allocated
);
1609 #endif /* HAVE_X_WINDOWS */
1612 #endif /* HAVE_WINDOW_SYSTEM */
1616 /***********************************************************************
1618 ***********************************************************************/
1620 /* An enumerator for each field of an XLFD font name. */
1641 /* An enumerator for each possible slant value of a font. Taken from
1642 the XLFD specification. */
1650 XLFD_SLANT_REVERSE_ITALIC
,
1651 XLFD_SLANT_REVERSE_OBLIQUE
,
1655 /* Relative font weight according to XLFD documentation. */
1659 XLFD_WEIGHT_UNKNOWN
,
1660 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1661 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1662 XLFD_WEIGHT_LIGHT
, /* 30 */
1663 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1664 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1665 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1666 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1667 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1668 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1671 /* Relative proportionate width. */
1675 XLFD_SWIDTH_UNKNOWN
,
1676 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1677 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1678 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1679 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1680 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1681 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1682 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1683 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1684 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1687 /* Structure used for tables mapping XLFD weight, slant, and width
1688 names to numeric and symbolic values. */
1694 Lisp_Object
*symbol
;
1697 /* Table of XLFD slant names and their numeric and symbolic
1698 representations. This table must be sorted by slant names in
1701 static struct table_entry slant_table
[] =
1703 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1704 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1705 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1706 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1707 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1708 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1711 /* Table of XLFD weight names. This table must be sorted by weight
1712 names in ascending order. */
1714 static struct table_entry weight_table
[] =
1716 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1717 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1718 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1719 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1720 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1721 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1722 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1723 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1724 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1725 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1726 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1727 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1728 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1729 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1730 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1733 /* Table of XLFD width names. This table must be sorted by width
1734 names in ascending order. */
1736 static struct table_entry swidth_table
[] =
1738 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1739 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1740 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1741 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1742 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1743 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1744 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1745 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1746 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1747 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1748 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1749 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1750 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1751 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1752 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1755 /* Structure used to hold the result of splitting font names in XLFD
1756 format into their fields. */
1760 /* The original name which is modified destructively by
1761 split_font_name. The pointer is kept here to be able to free it
1762 if it was allocated from the heap. */
1765 /* Font name fields. Each vector element points into `name' above.
1766 Fields are NUL-terminated. */
1767 char *fields
[XLFD_LAST
];
1769 /* Numeric values for those fields that interest us. See
1770 split_font_name for which these are. */
1771 int numeric
[XLFD_LAST
];
1774 /* The frame in effect when sorting font names. Set temporarily in
1775 sort_fonts so that it is available in font comparison functions. */
1777 static struct frame
*font_frame
;
1779 /* Order by which font selection chooses fonts. The default values
1780 mean `first, find a best match for the font width, then for the
1781 font height, then for weight, then for slant.' This variable can be
1782 set via set-face-font-sort-order. */
1784 static int font_sort_order
[4];
1787 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1788 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1789 is a pointer to the matching table entry or null if no table entry
1792 static struct table_entry
*
1793 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1794 struct table_entry
*table
;
1796 struct font_name
*font
;
1799 /* Function split_font_name converts fields to lower-case, so there
1800 is no need to use xstrlwr or xstricmp here. */
1801 char *s
= font
->fields
[field_index
];
1802 int low
, mid
, high
, cmp
;
1809 mid
= (low
+ high
) / 2;
1810 cmp
= strcmp (table
[mid
].name
, s
);
1824 /* Return a numeric representation for font name field
1825 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1826 has DIM entries. Value is the numeric value found or DFLT if no
1827 table entry matches. This function is used to translate weight,
1828 slant, and swidth names of XLFD font names to numeric values. */
1831 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1832 struct table_entry
*table
;
1834 struct font_name
*font
;
1838 struct table_entry
*p
;
1839 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1840 return p
? p
->numeric
: dflt
;
1844 /* Return a symbolic representation for font name field
1845 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1846 has DIM entries. Value is the symbolic value found or DFLT if no
1847 table entry matches. This function is used to translate weight,
1848 slant, and swidth names of XLFD font names to symbols. */
1850 static INLINE Lisp_Object
1851 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1852 struct table_entry
*table
;
1854 struct font_name
*font
;
1858 struct table_entry
*p
;
1859 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1860 return p
? *p
->symbol
: dflt
;
1864 /* Return a numeric value for the slant of the font given by FONT. */
1867 xlfd_numeric_slant (font
)
1868 struct font_name
*font
;
1870 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1871 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1875 /* Return a symbol representing the weight of the font given by FONT. */
1877 static INLINE Lisp_Object
1878 xlfd_symbolic_slant (font
)
1879 struct font_name
*font
;
1881 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1882 font
, XLFD_SLANT
, Qnormal
);
1886 /* Return a numeric value for the weight of the font given by FONT. */
1889 xlfd_numeric_weight (font
)
1890 struct font_name
*font
;
1892 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1893 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1897 /* Return a symbol representing the slant of the font given by FONT. */
1899 static INLINE Lisp_Object
1900 xlfd_symbolic_weight (font
)
1901 struct font_name
*font
;
1903 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1904 font
, XLFD_WEIGHT
, Qnormal
);
1908 /* Return a numeric value for the swidth of the font whose XLFD font
1909 name fields are found in FONT. */
1912 xlfd_numeric_swidth (font
)
1913 struct font_name
*font
;
1915 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
1916 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
1920 /* Return a symbolic value for the swidth of FONT. */
1922 static INLINE Lisp_Object
1923 xlfd_symbolic_swidth (font
)
1924 struct font_name
*font
;
1926 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
1927 font
, XLFD_SWIDTH
, Qnormal
);
1931 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
1932 entries. Value is a pointer to the matching table entry or null if
1933 no element of TABLE contains SYMBOL. */
1935 static struct table_entry
*
1936 face_value (table
, dim
, symbol
)
1937 struct table_entry
*table
;
1943 xassert (SYMBOLP (symbol
));
1945 for (i
= 0; i
< dim
; ++i
)
1946 if (EQ (*table
[i
].symbol
, symbol
))
1949 return i
< dim
? table
+ i
: NULL
;
1953 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
1954 entries. Value is -1 if SYMBOL is not found in TABLE. */
1957 face_numeric_value (table
, dim
, symbol
)
1958 struct table_entry
*table
;
1962 struct table_entry
*p
= face_value (table
, dim
, symbol
);
1963 return p
? p
->numeric
: -1;
1967 /* Return a numeric value representing the weight specified by Lisp
1968 symbol WEIGHT. Value is one of the enumerators of enum
1972 face_numeric_weight (weight
)
1975 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
1979 /* Return a numeric value representing the slant specified by Lisp
1980 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
1983 face_numeric_slant (slant
)
1986 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
1990 /* Return a numeric value representing the swidth specified by Lisp
1991 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
1994 face_numeric_swidth (width
)
1997 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2001 #ifdef HAVE_WINDOW_SYSTEM
2003 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2007 struct font_name
*font
;
2009 /* Function split_font_name converts fields to lower-case, so there
2010 is no need to use tolower here. */
2011 return *font
->fields
[XLFD_SPACING
] != 'p';
2015 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2017 The actual height of the font when displayed on F depends on the
2018 resolution of both the font and frame. For example, a 10pt font
2019 designed for a 100dpi display will display larger than 10pt on a
2020 75dpi display. (It's not unusual to use fonts not designed for the
2021 display one is using. For example, some intlfonts are available in
2022 72dpi versions, only.)
2024 Value is the real point size of FONT on frame F, or 0 if it cannot
2028 xlfd_point_size (f
, font
)
2030 struct font_name
*font
;
2032 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2033 double font_resy
= atoi (font
->fields
[XLFD_RESY
]);
2034 double font_pt
= atoi (font
->fields
[XLFD_POINT_SIZE
]);
2037 if (font_resy
== 0 || font_pt
== 0)
2040 real_pt
= (font_resy
/ resy
) * font_pt
+ 0.5;
2046 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2047 of frame F. This function is used to guess a point size of font
2048 when only the pixel height of the font is available. */
2051 pixel_point_size (f
, pixel
)
2055 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2059 /* As one inch is 72 points, 72/RESY gives the point size of one dot. */
2060 real_pt
= pixel
* 72 / resy
;
2061 int_pt
= real_pt
+ 0.5;
2067 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2068 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2069 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2070 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2071 zero if the font name doesn't have the format we expect. The
2072 expected format is a font name that starts with a `-' and has
2073 XLFD_LAST fields separated by `-'. (The XLFD specification allows
2074 forms of font names where certain field contents are enclosed in
2075 square brackets. We don't support that, for now. */
2078 split_font_name (f
, font
, numeric_p
)
2080 struct font_name
*font
;
2086 if (*font
->name
== '-')
2088 char *p
= xstrlwr (font
->name
) + 1;
2090 while (i
< XLFD_LAST
)
2092 font
->fields
[i
] = p
;
2095 while (*p
&& *p
!= '-')
2105 success_p
= i
== XLFD_LAST
;
2107 /* If requested, and font name was in the expected format,
2108 compute numeric values for some fields. */
2109 if (numeric_p
&& success_p
)
2111 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2112 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2113 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2114 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2115 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2122 /* Build an XLFD font name from font name fields in FONT. Value is a
2123 pointer to the font name, which is allocated via xmalloc. */
2126 build_font_name (font
)
2127 struct font_name
*font
;
2131 char *font_name
= (char *) xmalloc (size
);
2132 int total_length
= 0;
2134 for (i
= 0; i
< XLFD_LAST
; ++i
)
2136 /* Add 1 because of the leading `-'. */
2137 int len
= strlen (font
->fields
[i
]) + 1;
2139 /* Reallocate font_name if necessary. Add 1 for the final
2141 if (total_length
+ len
+ 1 >= size
)
2143 int new_size
= max (2 * size
, size
+ len
+ 1);
2144 int sz
= new_size
* sizeof *font_name
;
2145 font_name
= (char *) xrealloc (font_name
, sz
);
2149 font_name
[total_length
] = '-';
2150 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2151 total_length
+= len
;
2154 font_name
[total_length
] = 0;
2159 /* Free an array FONTS of N font_name structures. This frees FONTS
2160 itself and all `name' fields in its elements. */
2163 free_font_names (fonts
, n
)
2164 struct font_name
*fonts
;
2168 xfree (fonts
[--n
].name
);
2173 /* Sort vector FONTS of font_name structures which contains NFONTS
2174 elements using qsort and comparison function CMPFN. F is the frame
2175 on which the fonts will be used. The global variable font_frame
2176 is temporarily set to F to make it available in CMPFN. */
2179 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2181 struct font_name
*fonts
;
2183 int (*cmpfn
) P_ ((const void *, const void *));
2186 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2191 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2192 display in x_display_list. FONTS is a pointer to a vector of
2193 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2194 alternative patterns from Valternate_fontname_alist if no fonts are
2195 found matching PATTERN. SCALABLE_FONTS_P non-zero means include
2198 For all fonts found, set FONTS[i].name to the name of the font,
2199 allocated via xmalloc, and split font names into fields. Ignore
2200 fonts that we can't parse. Value is the number of fonts found.
2202 This is similar to x_list_fonts. The differences are:
2204 1. It avoids consing.
2205 2. It never calls XLoadQueryFont. */
2208 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
,
2212 struct font_name
*fonts
;
2213 int nfonts
, try_alternatives_p
;
2214 int scalable_fonts_p
;
2218 #ifdef HAVE_X_WINDOWS
2219 Display
*dpy
= f
? FRAME_X_DISPLAY (f
) : x_display_list
->display
;
2221 /* Get the list of fonts matching PATTERN from the X server. */
2223 names
= XListFonts (dpy
, pattern
, nfonts
, &n
);
2227 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2228 better to do it the other way around. */
2230 Lisp_Object lpattern
, tem
;
2235 lpattern
= build_string (pattern
);
2237 /* Get the list of fonts matching PATTERN. */
2239 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2242 /* Count fonts returned */
2243 for (tem
= lfonts
; CONSP (tem
); tem
= XCDR (tem
))
2246 /* Allocate array. */
2248 names
= (char **) xmalloc (n
* sizeof (char *));
2250 /* Extract font names into char * array. */
2252 for (i
= 0; i
< n
; i
++)
2254 names
[i
] = XSTRING (XCAR (tem
))->data
;
2261 /* Make a copy of the font names we got from X, and
2262 split them into fields. */
2263 for (i
= j
= 0; i
< n
; ++i
)
2265 /* Make a copy of the font name. */
2266 fonts
[j
].name
= xstrdup (names
[i
]);
2268 /* Ignore fonts having a name that we can't parse. */
2269 if (!split_font_name (f
, fonts
+ j
, 1))
2270 xfree (fonts
[j
].name
);
2271 else if (font_scalable_p (fonts
+ j
))
2274 if (!scalable_fonts_p
2275 || !may_use_scalable_font_p (fonts
+ j
, names
[i
]))
2276 xfree (fonts
[j
].name
);
2279 #else /* !SCALABLE_FONTS */
2280 /* Always ignore scalable fonts. */
2281 xfree (fonts
[j
].name
);
2282 #endif /* !SCALABLE_FONTS */
2290 #ifdef HAVE_X_WINDOWS
2291 /* Free font names. */
2293 XFreeFontNames (names
);
2299 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2300 if (n
== 0 && try_alternatives_p
)
2302 Lisp_Object list
= Valternate_fontname_alist
;
2304 while (CONSP (list
))
2306 Lisp_Object entry
= XCAR (list
);
2308 && STRINGP (XCAR (entry
))
2309 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2316 Lisp_Object patterns
= XCAR (list
);
2319 while (CONSP (patterns
)
2320 /* If list is screwed up, give up. */
2321 && (name
= XCAR (patterns
),
2323 /* Ignore patterns equal to PATTERN because we tried that
2324 already with no success. */
2325 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2326 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2330 patterns
= XCDR (patterns
);
2338 /* Determine the first font matching PATTERN on frame F. Return in
2339 *FONT the matching font name, split into fields. Value is non-zero
2340 if a match was found. */
2343 first_font_matching (f
, pattern
, font
)
2346 struct font_name
*font
;
2349 struct font_name
*fonts
;
2351 fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof *fonts
);
2352 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1, 0);
2356 bcopy (&fonts
[0], font
, sizeof *font
);
2358 fonts
[0].name
= NULL
;
2359 free_font_names (fonts
, nfonts
);
2366 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2367 using comparison function CMPFN. Value is the number of fonts
2368 found. If value is non-zero, *FONTS is set to a vector of
2369 font_name structures allocated from the heap containing matching
2370 fonts. Each element of *FONTS contains a name member that is also
2371 allocated from the heap. Font names in these structures are split
2372 into fields. Use free_font_names to free such an array. */
2375 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2378 int (*cmpfn
) P_ ((const void *, const void *));
2379 struct font_name
**fonts
;
2383 /* Get the list of fonts matching pattern. 100 should suffice. */
2384 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2385 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2386 nfonts
= XFASTINT (Vfont_list_limit
);
2388 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2390 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 1);
2392 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 0);
2395 /* Sort the resulting array and return it in *FONTS. If no
2396 fonts were found, make sure to set *FONTS to null. */
2398 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2409 /* Compare two font_name structures *A and *B. Value is analogous to
2410 strcmp. Sort order is given by the global variable
2411 font_sort_order. Font names are sorted so that, everything else
2412 being equal, fonts with a resolution closer to that of the frame on
2413 which they are used are listed first. The global variable
2414 font_frame is the frame on which we operate. */
2417 cmp_font_names (a
, b
)
2420 struct font_name
*x
= (struct font_name
*) a
;
2421 struct font_name
*y
= (struct font_name
*) b
;
2424 /* All strings have been converted to lower-case by split_font_name,
2425 so we can use strcmp here. */
2426 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2431 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2433 int j
= font_sort_order
[i
];
2434 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2439 /* Everything else being equal, we prefer fonts with an
2440 y-resolution closer to that of the frame. */
2441 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2442 int x_resy
= x
->numeric
[XLFD_RESY
];
2443 int y_resy
= y
->numeric
[XLFD_RESY
];
2444 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2452 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2453 is non-nil list fonts matching that pattern. Otherwise, if
2454 REGISTRY is non-nil return only fonts with that registry, otherwise
2455 return fonts of any registry. Set *FONTS to a vector of font_name
2456 structures allocated from the heap containing the fonts found.
2457 Value is the number of fonts found. */
2460 font_list (f
, pattern
, family
, registry
, fonts
)
2462 Lisp_Object pattern
, family
, registry
;
2463 struct font_name
**fonts
;
2465 char *pattern_str
, *family_str
, *registry_str
;
2469 family_str
= (NILP (family
) ? "*" : (char *) XSTRING (family
)->data
);
2470 registry_str
= (NILP (registry
) ? "*" : (char *) XSTRING (registry
)->data
);
2472 pattern_str
= (char *) alloca (strlen (family_str
)
2473 + strlen (registry_str
)
2475 if (index (family_str
, '-'))
2476 sprintf (pattern_str
, "-%s-*-%s", family_str
, registry_str
);
2478 sprintf (pattern_str
, "-*-%s-*-%s", family_str
, registry_str
);
2481 pattern_str
= (char *) XSTRING (pattern
)->data
;
2483 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2487 /* Remove elements from LIST whose cars are `equal'. Called from
2488 x-family-fonts and x-font-family-list to remove duplicate font
2492 remove_duplicates (list
)
2495 Lisp_Object tail
= list
;
2497 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2499 Lisp_Object next
= XCDR (tail
);
2500 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2501 XCDR (tail
) = XCDR (next
);
2508 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2509 "Return a list of available fonts of family FAMILY on FRAME.\n\
2510 If FAMILY is omitted or nil, list all families.\n\
2511 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2513 If FRAME is omitted or nil, use the selected frame.\n\
2514 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2515 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2516 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2517 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2518 width, weight and slant of the font. These symbols are the same as for\n\
2519 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2520 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2521 giving the registry and encoding of the font.\n\
2522 The result list is sorted according to the current setting of\n\
2523 the face font sort order.")
2525 Lisp_Object family
, frame
;
2527 struct frame
*f
= check_x_frame (frame
);
2528 struct font_name
*fonts
;
2531 struct gcpro gcpro1
;
2534 CHECK_STRING (family
, 1);
2538 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2539 for (i
= nfonts
- 1; i
>= 0; --i
)
2541 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2544 #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL))
2546 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2547 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2548 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2549 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2550 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2551 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2552 tem
= build_font_name (fonts
+ i
);
2553 ASET (v
, 6, build_string (tem
));
2554 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2555 fonts
[i
].fields
[XLFD_ENCODING
]);
2556 ASET (v
, 7, build_string (tem
));
2559 result
= Fcons (v
, result
);
2564 remove_duplicates (result
);
2565 free_font_names (fonts
, nfonts
);
2571 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2573 "Return a list of available font families on FRAME.\n\
2574 If FRAME is omitted or nil, use the selected frame.\n\
2575 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2576 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2581 struct frame
*f
= check_x_frame (frame
);
2583 struct font_name
*fonts
;
2585 struct gcpro gcpro1
;
2586 int count
= specpdl_ptr
- specpdl
;
2589 /* Let's consider all fonts. Increase the limit for matching
2590 fonts until we have them all. */
2593 specbind (intern ("font-list-limit"), make_number (limit
));
2594 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2596 if (nfonts
== limit
)
2598 free_font_names (fonts
, nfonts
);
2607 for (i
= nfonts
- 1; i
>= 0; --i
)
2608 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2609 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2612 remove_duplicates (result
);
2613 free_font_names (fonts
, nfonts
);
2615 return unbind_to (count
, result
);
2619 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2620 "Return a list of the names of available fonts matching PATTERN.\n\
2621 If optional arguments FACE and FRAME are specified, return only fonts\n\
2622 the same size as FACE on FRAME.\n\
2623 PATTERN is a string, perhaps with wildcard characters;\n\
2624 the * character matches any substring, and\n\
2625 the ? character matches any single character.\n\
2626 PATTERN is case-insensitive.\n\
2627 FACE is a face name--a symbol.\n\
2629 The return value is a list of strings, suitable as arguments to\n\
2632 Fonts Emacs can't use may or may not be excluded\n\
2633 even if they match PATTERN and FACE.\n\
2634 The optional fourth argument MAXIMUM sets a limit on how many\n\
2635 fonts to match. The first MAXIMUM fonts are reported.\n\
2636 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2637 occupied by a character of a font. In that case, return only fonts\n\
2638 the WIDTH times as wide as FACE on FRAME.")
2639 (pattern
, face
, frame
, maximum
, width
)
2640 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2647 CHECK_STRING (pattern
, 0);
2653 CHECK_NATNUM (maximum
, 0);
2654 maxnames
= XINT (maximum
);
2658 CHECK_NUMBER (width
, 4);
2660 /* We can't simply call check_x_frame because this function may be
2661 called before any frame is created. */
2662 f
= frame_or_selected_frame (frame
, 2);
2663 if (!FRAME_WINDOW_P (f
))
2665 /* Perhaps we have not yet created any frame. */
2670 /* Determine the width standard for comparison with the fonts we find. */
2676 /* This is of limited utility since it works with character
2677 widths. Keep it for compatibility. --gerd. */
2678 int face_id
= lookup_named_face (f
, face
, 0);
2679 struct face
*face
= FACE_FROM_ID (f
, face_id
);
2682 size
= FONT_WIDTH (face
->font
);
2684 size
= FONT_WIDTH (FRAME_FONT (f
));
2687 size
*= XINT (width
);
2691 Lisp_Object args
[2];
2693 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2695 /* We don't have to check fontsets. */
2697 args
[1] = list_fontsets (f
, pattern
, size
);
2698 return Fnconc (2, args
);
2702 #endif /* HAVE_WINDOW_SYSTEM */
2706 /***********************************************************************
2708 ***********************************************************************/
2710 /* Access face attributes of face FACE, a Lisp vector. */
2712 #define LFACE_FAMILY(LFACE) \
2713 XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX]
2714 #define LFACE_HEIGHT(LFACE) \
2715 XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX]
2716 #define LFACE_WEIGHT(LFACE) \
2717 XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX]
2718 #define LFACE_SLANT(LFACE) \
2719 XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX]
2720 #define LFACE_UNDERLINE(LFACE) \
2721 XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX]
2722 #define LFACE_INVERSE(LFACE) \
2723 XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX]
2724 #define LFACE_FOREGROUND(LFACE) \
2725 XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX]
2726 #define LFACE_BACKGROUND(LFACE) \
2727 XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX]
2728 #define LFACE_STIPPLE(LFACE) \
2729 XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX]
2730 #define LFACE_SWIDTH(LFACE) \
2731 XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX]
2732 #define LFACE_OVERLINE(LFACE) \
2733 XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX]
2734 #define LFACE_STRIKE_THROUGH(LFACE) \
2735 XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX]
2736 #define LFACE_BOX(LFACE) \
2737 XVECTOR (LFACE)->contents[LFACE_BOX_INDEX]
2738 #define LFACE_FONT(LFACE) \
2739 XVECTOR (LFACE)->contents[LFACE_FONT_INDEX]
2741 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2742 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2744 #define LFACEP(LFACE) \
2746 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2747 && EQ (XVECTOR (LFACE)->contents[0], Qface))
2752 /* Check consistency of Lisp face attribute vector ATTRS. */
2755 check_lface_attrs (attrs
)
2758 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2759 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2760 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2761 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2762 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2763 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]));
2764 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2765 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2766 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2767 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2768 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2769 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2770 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2771 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2772 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2773 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2774 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2775 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2776 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2777 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2778 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2779 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2780 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2781 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2782 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2783 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2784 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2785 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2786 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2787 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2788 #ifdef HAVE_WINDOW_SYSTEM
2789 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2790 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2791 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2792 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2793 || NILP (attrs
[LFACE_FONT_INDEX
])
2794 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
2799 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2807 xassert (LFACEP (lface
));
2808 check_lface_attrs (XVECTOR (lface
)->contents
);
2812 #else /* GLYPH_DEBUG == 0 */
2814 #define check_lface_attrs(attrs) (void) 0
2815 #define check_lface(lface) (void) 0
2817 #endif /* GLYPH_DEBUG == 0 */
2820 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2821 to make it a symvol. If FACE_NAME is an alias for another face,
2822 return that face's name. */
2825 resolve_face_name (face_name
)
2826 Lisp_Object face_name
;
2828 Lisp_Object aliased
;
2830 if (STRINGP (face_name
))
2831 face_name
= intern (XSTRING (face_name
)->data
);
2835 aliased
= Fget (face_name
, Qface_alias
);
2839 face_name
= aliased
;
2846 /* Return the face definition of FACE_NAME on frame F. F null means
2847 return the global definition. FACE_NAME may be a string or a
2848 symbol (apparently Emacs 20.2 allows strings as face names in face
2849 text properties; ediff uses that). If FACE_NAME is an alias for
2850 another face, return that face's definition. If SIGNAL_P is
2851 non-zero, signal an error if FACE_NAME is not a valid face name.
2852 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2855 static INLINE Lisp_Object
2856 lface_from_face_name (f
, face_name
, signal_p
)
2858 Lisp_Object face_name
;
2863 face_name
= resolve_face_name (face_name
);
2866 lface
= assq_no_quit (face_name
, f
->face_alist
);
2868 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2871 lface
= XCDR (lface
);
2873 signal_error ("Invalid face", face_name
);
2875 check_lface (lface
);
2880 /* Get face attributes of face FACE_NAME from frame-local faces on
2881 frame F. Store the resulting attributes in ATTRS which must point
2882 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2883 is non-zero, signal an error if FACE_NAME does not name a face.
2884 Otherwise, value is zero if FACE_NAME is not a face. */
2887 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
2889 Lisp_Object face_name
;
2896 lface
= lface_from_face_name (f
, face_name
, signal_p
);
2899 bcopy (XVECTOR (lface
)->contents
, attrs
,
2900 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2910 /* Non-zero if all attributes in face attribute vector ATTRS are
2911 specified, i.e. are non-nil. */
2914 lface_fully_specified_p (attrs
)
2919 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2920 if (UNSPECIFIEDP (attrs
[i
]) && i
!= LFACE_FONT_INDEX
)
2923 return i
== LFACE_VECTOR_SIZE
;
2926 #ifdef HAVE_WINDOW_SYSTEM
2928 /* Set font-related attributes of Lisp face LFACE from the fullname of
2929 the font opened by FONTNAME. If FORCE_P is zero, set only
2930 unspecified attributes of LFACE. The exception is `font'
2931 attribute. It is set to FONTNAME as is regardless of FORCE_P.
2933 If FONTNAME is not available on frame F,
2934 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
2935 If the fullname is not in a valid XLFD format,
2936 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
2937 in LFACE and return 1.
2938 Otherwise, return 1. */
2941 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
2944 Lisp_Object fontname
;
2945 int force_p
, may_fail_p
;
2947 struct font_name font
;
2952 char *font_name
= XSTRING (fontname
)->data
;
2953 struct font_info
*font_info
;
2955 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
2956 fontset
= fs_query_fontset (fontname
, 0);
2958 font_name
= XSTRING (fontset_ascii (fontset
))->data
;
2960 /* Check if FONT_NAME is surely available on the system. Usually
2961 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
2962 returns quickly. But, even if FONT_NAME is not yet cached,
2963 caching it now is not futail because we anyway load the font
2966 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
2976 font
.name
= STRDUPA (font_info
->full_name
);
2977 have_xlfd_p
= split_font_name (f
, &font
, 1);
2979 /* Set attributes only if unspecified, otherwise face defaults for
2980 new frames would never take effect. If we couldn't get a font
2981 name conforming to XLFD, set normal values. */
2983 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2988 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
2989 + strlen (font
.fields
[XLFD_FOUNDRY
])
2991 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
2992 font
.fields
[XLFD_FAMILY
]);
2993 val
= build_string (buffer
);
2996 val
= build_string ("*");
2997 LFACE_FAMILY (lface
) = val
;
3000 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3003 pt
= xlfd_point_size (f
, &font
);
3005 pt
= pixel_point_size (f
, font_info
->height
* 10);
3007 LFACE_HEIGHT (lface
) = make_number (pt
);
3010 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3011 LFACE_SWIDTH (lface
)
3012 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3014 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3015 LFACE_WEIGHT (lface
)
3016 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3018 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3020 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3022 LFACE_FONT (lface
) = fontname
;
3026 #endif /* HAVE_WINDOW_SYSTEM */
3029 /* Merge two Lisp face attribute vectors FROM and TO and store the
3030 resulting attributes in TO. Every non-nil attribute of FROM
3031 overrides the corresponding attribute of TO. */
3034 merge_face_vectors (from
, to
)
3035 Lisp_Object
*from
, *to
;
3038 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3039 if (!UNSPECIFIEDP (from
[i
]))
3044 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3045 is a face property, determine the resulting face attributes on
3046 frame F, and store them in TO. PROP may be a single face
3047 specification or a list of such specifications. Each face
3048 specification can be
3050 1. A symbol or string naming a Lisp face.
3052 2. A property list of the form (KEYWORD VALUE ...) where each
3053 KEYWORD is a face attribute name, and value is an appropriate value
3056 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3057 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3058 for compatibility with 20.2.
3060 Face specifications earlier in lists take precedence over later
3064 merge_face_vector_with_property (f
, to
, prop
)
3071 Lisp_Object first
= XCAR (prop
);
3073 if (EQ (first
, Qforeground_color
)
3074 || EQ (first
, Qbackground_color
))
3076 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3077 . COLOR). COLOR must be a string. */
3078 Lisp_Object color_name
= XCDR (prop
);
3079 Lisp_Object color
= first
;
3081 if (STRINGP (color_name
))
3083 if (EQ (color
, Qforeground_color
))
3084 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3086 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3089 add_to_log ("Invalid face color", color_name
, Qnil
);
3091 else if (SYMBOLP (first
)
3092 && *XSYMBOL (first
)->name
->data
== ':')
3094 /* Assume this is the property list form. */
3095 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3097 Lisp_Object keyword
= XCAR (prop
);
3098 Lisp_Object value
= XCAR (XCDR (prop
));
3100 if (EQ (keyword
, QCfamily
))
3102 if (STRINGP (value
))
3103 to
[LFACE_FAMILY_INDEX
] = value
;
3105 add_to_log ("Illegal face font family", value
, Qnil
);
3107 else if (EQ (keyword
, QCheight
))
3109 if (INTEGERP (value
))
3110 to
[LFACE_HEIGHT_INDEX
] = value
;
3112 add_to_log ("Illegal face font height", value
, Qnil
);
3114 else if (EQ (keyword
, QCweight
))
3117 && face_numeric_weight (value
) >= 0)
3118 to
[LFACE_WEIGHT_INDEX
] = value
;
3120 add_to_log ("Illegal face weight", value
, Qnil
);
3122 else if (EQ (keyword
, QCslant
))
3125 && face_numeric_slant (value
) >= 0)
3126 to
[LFACE_SLANT_INDEX
] = value
;
3128 add_to_log ("Illegal face slant", value
, Qnil
);
3130 else if (EQ (keyword
, QCunderline
))
3135 to
[LFACE_UNDERLINE_INDEX
] = value
;
3137 add_to_log ("Illegal face underline", value
, Qnil
);
3139 else if (EQ (keyword
, QCoverline
))
3144 to
[LFACE_OVERLINE_INDEX
] = value
;
3146 add_to_log ("Illegal face overline", value
, Qnil
);
3148 else if (EQ (keyword
, QCstrike_through
))
3153 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3155 add_to_log ("Illegal face strike-through", value
, Qnil
);
3157 else if (EQ (keyword
, QCbox
))
3160 value
= make_number (1);
3161 if (INTEGERP (value
)
3165 to
[LFACE_BOX_INDEX
] = value
;
3167 add_to_log ("Illegal face box", value
, Qnil
);
3169 else if (EQ (keyword
, QCinverse_video
)
3170 || EQ (keyword
, QCreverse_video
))
3172 if (EQ (value
, Qt
) || NILP (value
))
3173 to
[LFACE_INVERSE_INDEX
] = value
;
3175 add_to_log ("Illegal face inverse-video", value
, Qnil
);
3177 else if (EQ (keyword
, QCforeground
))
3179 if (STRINGP (value
))
3180 to
[LFACE_FOREGROUND_INDEX
] = value
;
3182 add_to_log ("Illegal face foreground", value
, Qnil
);
3184 else if (EQ (keyword
, QCbackground
))
3186 if (STRINGP (value
))
3187 to
[LFACE_BACKGROUND_INDEX
] = value
;
3189 add_to_log ("Illegal face background", value
, Qnil
);
3191 else if (EQ (keyword
, QCstipple
))
3193 #ifdef HAVE_X_WINDOWS
3194 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3195 if (!NILP (pixmap_p
))
3196 to
[LFACE_STIPPLE_INDEX
] = value
;
3198 add_to_log ("Illegal face stipple", value
, Qnil
);
3201 else if (EQ (keyword
, QCwidth
))
3204 && face_numeric_swidth (value
) >= 0)
3205 to
[LFACE_SWIDTH_INDEX
] = value
;
3207 add_to_log ("Illegal face width", value
, Qnil
);
3210 add_to_log ("Invalid attribute %s in face property",
3213 prop
= XCDR (XCDR (prop
));
3218 /* This is a list of face specs. Specifications at the
3219 beginning of the list take precedence over later
3220 specifications, so we have to merge starting with the
3221 last specification. */
3222 Lisp_Object next
= XCDR (prop
);
3224 merge_face_vector_with_property (f
, to
, next
);
3225 merge_face_vector_with_property (f
, to
, first
);
3230 /* PROP ought to be a face name. */
3231 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3233 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3235 merge_face_vectors (XVECTOR (lface
)->contents
, to
);
3240 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3241 Sinternal_make_lisp_face
, 1, 2, 0,
3242 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3243 If FACE was not known as a face before, create a new one.\n\
3244 If optional argument FRAME is specified, make a frame-local face\n\
3245 for that frame. Otherwise operate on the global face definition.\n\
3246 Value is a vector of face attributes.")
3248 Lisp_Object face
, frame
;
3250 Lisp_Object global_lface
, lface
;
3254 CHECK_SYMBOL (face
, 0);
3255 global_lface
= lface_from_face_name (NULL
, face
, 0);
3259 CHECK_LIVE_FRAME (frame
, 1);
3261 lface
= lface_from_face_name (f
, face
, 0);
3264 f
= NULL
, lface
= Qnil
;
3266 /* Add a global definition if there is none. */
3267 if (NILP (global_lface
))
3269 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3271 XVECTOR (global_lface
)->contents
[0] = Qface
;
3272 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3273 Vface_new_frame_defaults
);
3275 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3276 face id to Lisp face is given by the vector lface_id_to_name.
3277 The mapping from Lisp face to Lisp face id is given by the
3278 property `face' of the Lisp face name. */
3279 if (next_lface_id
== lface_id_to_name_size
)
3281 int new_size
= max (50, 2 * lface_id_to_name_size
);
3282 int sz
= new_size
* sizeof *lface_id_to_name
;
3283 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3284 lface_id_to_name_size
= new_size
;
3287 lface_id_to_name
[next_lface_id
] = face
;
3288 Fput (face
, Qface
, make_number (next_lface_id
));
3292 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3293 XVECTOR (global_lface
)->contents
[i
] = Qunspecified
;
3295 /* Add a frame-local definition. */
3300 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3302 XVECTOR (lface
)->contents
[0] = Qface
;
3303 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3306 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3307 XVECTOR (lface
)->contents
[i
] = Qunspecified
;
3310 lface
= global_lface
;
3312 xassert (LFACEP (lface
));
3313 check_lface (lface
);
3318 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3319 Sinternal_lisp_face_p
, 1, 2, 0,
3320 "Return non-nil if FACE names a face.\n\
3321 If optional second parameter FRAME is non-nil, check for the\n\
3322 existence of a frame-local face with name FACE on that frame.\n\
3323 Otherwise check for the existence of a global face.")
3325 Lisp_Object face
, frame
;
3331 CHECK_LIVE_FRAME (frame
, 1);
3332 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3335 lface
= lface_from_face_name (NULL
, face
, 0);
3341 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3342 Sinternal_copy_lisp_face
, 4, 4, 0,
3343 "Copy face FROM to TO.\n\
3344 If FRAME it t, copy the global face definition of FROM to the\n\
3345 global face definition of TO. Otherwise, copy the frame-local\n\
3346 definition of FROM on FRAME to the frame-local definition of TO\n\
3347 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3350 (from
, to
, frame
, new_frame
)
3351 Lisp_Object from
, to
, frame
, new_frame
;
3353 Lisp_Object lface
, copy
;
3355 CHECK_SYMBOL (from
, 0);
3356 CHECK_SYMBOL (to
, 1);
3357 if (NILP (new_frame
))
3362 /* Copy global definition of FROM. We don't make copies of
3363 strings etc. because 20.2 didn't do it either. */
3364 lface
= lface_from_face_name (NULL
, from
, 1);
3365 copy
= Finternal_make_lisp_face (to
, Qnil
);
3369 /* Copy frame-local definition of FROM. */
3370 CHECK_LIVE_FRAME (frame
, 2);
3371 CHECK_LIVE_FRAME (new_frame
, 3);
3372 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3373 copy
= Finternal_make_lisp_face (to
, new_frame
);
3376 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3377 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3383 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3384 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3385 "Set attribute ATTR of FACE to VALUE.\n\
3386 If optional argument FRAME is given, set the face attribute of face FACE\n\
3387 on that frame. If FRAME is t, set the attribute of the default for face\n\
3388 FACE (for new frames). If FRAME is omitted or nil, use the selected\n\
3390 (face
, attr
, value
, frame
)
3391 Lisp_Object face
, attr
, value
, frame
;
3394 Lisp_Object old_value
= Qnil
;
3395 /* Set 1 if ATTR is QCfont. */
3396 int font_attr_p
= 0;
3397 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3398 int font_related_attr_p
= 0;
3400 CHECK_SYMBOL (face
, 0);
3401 CHECK_SYMBOL (attr
, 1);
3403 face
= resolve_face_name (face
);
3405 /* Set lface to the Lisp attribute vector of FACE. */
3407 lface
= lface_from_face_name (NULL
, face
, 1);
3411 frame
= selected_frame
;
3413 CHECK_LIVE_FRAME (frame
, 3);
3414 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3416 /* If a frame-local face doesn't exist yet, create one. */
3418 lface
= Finternal_make_lisp_face (face
, frame
);
3421 if (EQ (attr
, QCfamily
))
3423 if (!UNSPECIFIEDP (value
))
3425 CHECK_STRING (value
, 3);
3426 if (XSTRING (value
)->size
== 0)
3427 signal_error ("Invalid face family", value
);
3429 old_value
= LFACE_FAMILY (lface
);
3430 LFACE_FAMILY (lface
) = value
;
3431 font_related_attr_p
= 1;
3433 else if (EQ (attr
, QCheight
))
3435 if (!UNSPECIFIEDP (value
))
3437 CHECK_NUMBER (value
, 3);
3438 if (XINT (value
) <= 0)
3439 signal_error ("Invalid face height", value
);
3441 old_value
= LFACE_HEIGHT (lface
);
3442 LFACE_HEIGHT (lface
) = value
;
3443 font_related_attr_p
= 1;
3445 else if (EQ (attr
, QCweight
))
3447 if (!UNSPECIFIEDP (value
))
3449 CHECK_SYMBOL (value
, 3);
3450 if (face_numeric_weight (value
) < 0)
3451 signal_error ("Invalid face weight", value
);
3453 old_value
= LFACE_WEIGHT (lface
);
3454 LFACE_WEIGHT (lface
) = value
;
3455 font_related_attr_p
= 1;
3457 else if (EQ (attr
, QCslant
))
3459 if (!UNSPECIFIEDP (value
))
3461 CHECK_SYMBOL (value
, 3);
3462 if (face_numeric_slant (value
) < 0)
3463 signal_error ("Invalid face slant", value
);
3465 old_value
= LFACE_SLANT (lface
);
3466 LFACE_SLANT (lface
) = value
;
3467 font_related_attr_p
= 1;
3469 else if (EQ (attr
, QCunderline
))
3471 if (!UNSPECIFIEDP (value
))
3472 if ((SYMBOLP (value
)
3474 && !EQ (value
, Qnil
))
3475 /* Underline color. */
3477 && XSTRING (value
)->size
== 0))
3478 signal_error ("Invalid face underline", value
);
3480 old_value
= LFACE_UNDERLINE (lface
);
3481 LFACE_UNDERLINE (lface
) = value
;
3483 else if (EQ (attr
, QCoverline
))
3485 if (!UNSPECIFIEDP (value
))
3486 if ((SYMBOLP (value
)
3488 && !EQ (value
, Qnil
))
3489 /* Overline color. */
3491 && XSTRING (value
)->size
== 0))
3492 signal_error ("Invalid face overline", value
);
3494 old_value
= LFACE_OVERLINE (lface
);
3495 LFACE_OVERLINE (lface
) = value
;
3497 else if (EQ (attr
, QCstrike_through
))
3499 if (!UNSPECIFIEDP (value
))
3500 if ((SYMBOLP (value
)
3502 && !EQ (value
, Qnil
))
3503 /* Strike-through color. */
3505 && XSTRING (value
)->size
== 0))
3506 signal_error ("Invalid face strike-through", value
);
3508 old_value
= LFACE_STRIKE_THROUGH (lface
);
3509 LFACE_STRIKE_THROUGH (lface
) = value
;
3511 else if (EQ (attr
, QCbox
))
3515 /* Allow t meaning a simple box of width 1 in foreground color
3518 value
= make_number (1);
3520 if (UNSPECIFIEDP (value
))
3522 else if (NILP (value
))
3524 else if (INTEGERP (value
))
3525 valid_p
= XINT (value
) > 0;
3526 else if (STRINGP (value
))
3527 valid_p
= XSTRING (value
)->size
> 0;
3528 else if (CONSP (value
))
3544 if (EQ (k
, QCline_width
))
3546 if (!INTEGERP (v
) || XINT (v
) <= 0)
3549 else if (EQ (k
, QCcolor
))
3551 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3554 else if (EQ (k
, QCstyle
))
3556 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3563 valid_p
= NILP (tem
);
3569 signal_error ("Invalid face box", value
);
3571 old_value
= LFACE_BOX (lface
);
3572 LFACE_BOX (lface
) = value
;
3574 else if (EQ (attr
, QCinverse_video
)
3575 || EQ (attr
, QCreverse_video
))
3577 if (!UNSPECIFIEDP (value
))
3579 CHECK_SYMBOL (value
, 3);
3580 if (!EQ (value
, Qt
) && !NILP (value
))
3581 signal_error ("Invalid inverse-video face attribute value", value
);
3583 old_value
= LFACE_INVERSE (lface
);
3584 LFACE_INVERSE (lface
) = value
;
3586 else if (EQ (attr
, QCforeground
))
3588 if (!UNSPECIFIEDP (value
))
3590 /* Don't check for valid color names here because it depends
3591 on the frame (display) whether the color will be valid
3592 when the face is realized. */
3593 CHECK_STRING (value
, 3);
3594 if (XSTRING (value
)->size
== 0)
3595 signal_error ("Empty foreground color value", value
);
3597 old_value
= LFACE_FOREGROUND (lface
);
3598 LFACE_FOREGROUND (lface
) = value
;
3600 else if (EQ (attr
, QCbackground
))
3602 if (!UNSPECIFIEDP (value
))
3604 /* Don't check for valid color names here because it depends
3605 on the frame (display) whether the color will be valid
3606 when the face is realized. */
3607 CHECK_STRING (value
, 3);
3608 if (XSTRING (value
)->size
== 0)
3609 signal_error ("Empty background color value", value
);
3611 old_value
= LFACE_BACKGROUND (lface
);
3612 LFACE_BACKGROUND (lface
) = value
;
3614 else if (EQ (attr
, QCstipple
))
3616 #ifdef HAVE_X_WINDOWS
3617 if (!UNSPECIFIEDP (value
)
3619 && NILP (Fbitmap_spec_p (value
)))
3620 signal_error ("Invalid stipple attribute", value
);
3621 old_value
= LFACE_STIPPLE (lface
);
3622 LFACE_STIPPLE (lface
) = value
;
3623 #endif /* HAVE_X_WINDOWS */
3625 else if (EQ (attr
, QCwidth
))
3627 if (!UNSPECIFIEDP (value
))
3629 CHECK_SYMBOL (value
, 3);
3630 if (face_numeric_swidth (value
) < 0)
3631 signal_error ("Invalid face width", value
);
3633 old_value
= LFACE_SWIDTH (lface
);
3634 LFACE_SWIDTH (lface
) = value
;
3635 font_related_attr_p
= 1;
3637 else if (EQ (attr
, QCfont
))
3639 #ifdef HAVE_WINDOW_SYSTEM
3640 /* Set font-related attributes of the Lisp face from an
3645 CHECK_STRING (value
, 3);
3647 f
= SELECTED_FRAME ();
3649 f
= check_x_frame (frame
);
3651 /* VALUE may be a fontset name or an alias of fontset. In such
3652 a case, use the base fontset name. */
3653 tmp
= Fquery_fontset (value
, Qnil
);
3657 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
3658 signal_error ("Invalid font or fontset name", value
);
3661 #endif /* HAVE_WINDOW_SYSTEM */
3663 else if (EQ (attr
, QCbold
))
3665 old_value
= LFACE_WEIGHT (lface
);
3666 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3667 font_related_attr_p
= 1;
3669 else if (EQ (attr
, QCitalic
))
3671 old_value
= LFACE_SLANT (lface
);
3672 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3673 font_related_attr_p
= 1;
3676 signal_error ("Invalid face attribute name", attr
);
3678 if (font_related_attr_p
3679 && !UNSPECIFIEDP (value
))
3680 /* If a font-related attribute other than QCfont is specified, the
3681 original `font' attribute nor that of default face is useless
3682 to determine a new font. Thus, we set it to nil so that font
3683 selection mechanism doesn't use it. */
3684 LFACE_FONT (lface
) = Qnil
;
3686 /* Changing a named face means that all realized faces depending on
3687 that face are invalid. Since we cannot tell which realized faces
3688 depend on the face, make sure they are all removed. This is done
3689 by incrementing face_change_count. The next call to
3690 init_iterator will then free realized faces. */
3692 && (EQ (attr
, QCfont
)
3693 || NILP (Fequal (old_value
, value
))))
3695 ++face_change_count
;
3696 ++windows_or_buffers_changed
;
3699 #ifdef HAVE_WINDOW_SYSTEM
3702 && !UNSPECIFIEDP (value
)
3703 && NILP (Fequal (old_value
, value
)))
3709 if (EQ (face
, Qdefault
))
3711 /* Changed font-related attributes of the `default' face are
3712 reflected in changed `font' frame parameters. */
3713 if ((font_related_attr_p
|| font_attr_p
)
3714 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3715 set_font_frame_param (frame
, lface
);
3716 else if (EQ (attr
, QCforeground
))
3717 param
= Qforeground_color
;
3718 else if (EQ (attr
, QCbackground
))
3719 param
= Qbackground_color
;
3722 else if (EQ (face
, Qscroll_bar
))
3724 /* Changing the colors of `scroll-bar' sets frame parameters
3725 `scroll-bar-foreground' and `scroll-bar-background'. */
3726 if (EQ (attr
, QCforeground
))
3727 param
= Qscroll_bar_foreground
;
3728 else if (EQ (attr
, QCbackground
))
3729 param
= Qscroll_bar_background
;
3732 else if (EQ (face
, Qborder
))
3734 /* Changing background color of `border' sets frame parameter
3736 if (EQ (attr
, QCbackground
))
3737 param
= Qborder_color
;
3739 else if (EQ (face
, Qcursor
))
3741 /* Changing background color of `cursor' sets frame parameter
3743 if (EQ (attr
, QCbackground
))
3744 param
= Qcursor_color
;
3746 else if (EQ (face
, Qmouse
))
3748 /* Changing background color of `mouse' sets frame parameter
3750 if (EQ (attr
, QCbackground
))
3751 param
= Qmouse_color
;
3755 Fmodify_frame_parameters (frame
, Fcons (Fcons (param
, value
), Qnil
));
3758 #endif /* HAVE_WINDOW_SYSTEM */
3764 #ifdef HAVE_WINDOW_SYSTEM
3766 /* Set the `font' frame parameter of FRAME determined from `default'
3767 face attributes LFACE. If a face or fontset name is explicitely
3768 specfied in LFACE, use it as is. Otherwise, determine a font name
3769 from the other font-related atrributes of LFACE. In that case, if
3770 there's no matching font, signals an error. */
3773 set_font_frame_param (frame
, lface
)
3774 Lisp_Object frame
, lface
;
3776 struct frame
*f
= XFRAME (frame
);
3777 Lisp_Object font_name
;
3780 if (STRINGP (LFACE_FONT (lface
)))
3781 font_name
= LFACE_FONT (lface
);
3784 /* Choose a font name that reflects LFACE's attributes and has
3785 the registry and encoding pattern specified in the default
3786 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
3787 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0);
3789 error ("No font matches the specified attribute");
3790 font_name
= build_string (font
);
3793 store_frame_param (f
, Qfont
, font_name
);
3797 /* Update the corresponding face when frame parameter PARAM on frame F
3798 has been assigned the value NEW_VALUE. */
3801 update_face_from_frame_parameter (f
, param
, new_value
)
3803 Lisp_Object param
, new_value
;
3807 /* If there are no faces yet, give up. This is the case when called
3808 from Fx_create_frame, and we do the necessary things later in
3809 face-set-after-frame-defaults. */
3810 if (NILP (f
->face_alist
))
3813 if (EQ (param
, Qforeground_color
))
3815 lface
= lface_from_face_name (f
, Qdefault
, 1);
3816 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3817 ? new_value
: Qunspecified
);
3818 realize_basic_faces (f
);
3820 else if (EQ (param
, Qbackground_color
))
3824 /* Changing the background color might change the background
3825 mode, so that we have to load new defface specs. Call
3826 frame-update-face-colors to do that. */
3827 XSETFRAME (frame
, f
);
3828 call1 (Qframe_update_face_colors
, frame
);
3830 lface
= lface_from_face_name (f
, Qdefault
, 1);
3831 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3832 ? new_value
: Qunspecified
);
3833 realize_basic_faces (f
);
3835 if (EQ (param
, Qborder_color
))
3837 lface
= lface_from_face_name (f
, Qborder
, 1);
3838 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3839 ? new_value
: Qunspecified
);
3841 else if (EQ (param
, Qcursor_color
))
3843 lface
= lface_from_face_name (f
, Qcursor
, 1);
3844 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3845 ? new_value
: Qunspecified
);
3847 else if (EQ (param
, Qmouse_color
))
3849 lface
= lface_from_face_name (f
, Qmouse
, 1);
3850 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3851 ? new_value
: Qunspecified
);
3856 /* Get the value of X resource RESOURCE, class CLASS for the display
3857 of frame FRAME. This is here because ordinary `x-get-resource'
3858 doesn't take a frame argument. */
3860 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3861 Sinternal_face_x_get_resource
, 3, 3, 0, "")
3862 (resource
, class, frame
)
3863 Lisp_Object resource
, class, frame
;
3865 Lisp_Object value
= Qnil
;
3867 CHECK_STRING (resource
, 0);
3868 CHECK_STRING (class, 1);
3869 CHECK_LIVE_FRAME (frame
, 2);
3871 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3872 resource
, class, Qnil
, Qnil
);
3879 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3880 If VALUE is "on" or "true", return t. If VALUE is "off" or
3881 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3882 error; if SIGNAL_P is zero, return 0. */
3885 face_boolean_x_resource_value (value
, signal_p
)
3889 Lisp_Object result
= make_number (0);
3891 xassert (STRINGP (value
));
3893 if (xstricmp (XSTRING (value
)->data
, "on") == 0
3894 || xstricmp (XSTRING (value
)->data
, "true") == 0)
3896 else if (xstricmp (XSTRING (value
)->data
, "off") == 0
3897 || xstricmp (XSTRING (value
)->data
, "false") == 0)
3899 else if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3900 result
= Qunspecified
;
3902 signal_error ("Invalid face attribute value from X resource", value
);
3908 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3909 Finternal_set_lisp_face_attribute_from_resource
,
3910 Sinternal_set_lisp_face_attribute_from_resource
,
3912 (face
, attr
, value
, frame
)
3913 Lisp_Object face
, attr
, value
, frame
;
3915 CHECK_SYMBOL (face
, 0);
3916 CHECK_SYMBOL (attr
, 1);
3917 CHECK_STRING (value
, 2);
3919 if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3920 value
= Qunspecified
;
3921 else if (EQ (attr
, QCheight
))
3923 value
= Fstring_to_number (value
, make_number (10));
3924 if (XINT (value
) <= 0)
3925 signal_error ("Invalid face height from X resource", value
);
3927 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3928 value
= face_boolean_x_resource_value (value
, 1);
3929 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3930 value
= intern (XSTRING (value
)->data
);
3931 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3932 value
= face_boolean_x_resource_value (value
, 1);
3933 else if (EQ (attr
, QCunderline
)
3934 || EQ (attr
, QCoverline
)
3935 || EQ (attr
, QCstrike_through
)
3936 || EQ (attr
, QCbox
))
3938 Lisp_Object boolean_value
;
3940 /* If the result of face_boolean_x_resource_value is t or nil,
3941 VALUE does NOT specify a color. */
3942 boolean_value
= face_boolean_x_resource_value (value
, 0);
3943 if (SYMBOLP (boolean_value
))
3944 value
= boolean_value
;
3947 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3950 #endif /* HAVE_WINDOW_SYSTEM */
3953 #ifdef HAVE_X_WINDOWS
3954 /***********************************************************************
3956 ***********************************************************************/
3958 #ifdef USE_X_TOOLKIT
3960 /* Structure used to pass X resources to functions called via
3961 XtApplyToWidgets. */
3972 static void xm_apply_resources
P_ ((Widget
, XtPointer
));
3973 static void xm_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
3976 /* Set widget W's X resources from P which points to an x_resources
3977 structure. If W is a cascade button, apply resources to W's
3981 xm_apply_resources (w
, p
)
3986 struct x_resources
*res
= (struct x_resources
*) p
;
3988 XtSetValues (w
, res
->av
, res
->ac
);
3989 XtVaGetValues (w
, XmNsubMenuId
, &submenu
, NULL
);
3992 XtSetValues (submenu
, res
->av
, res
->ac
);
3993 XtApplyToWidgets (submenu
, xm_apply_resources
, p
);
3998 /* Set X resources of menu-widget WIDGET on frame F from face `menu'.
3999 This is the LessTif/Motif version. As of LessTif 0.88 it has the
4002 1. Setting the XmNfontList resource leads to an infinite loop
4003 somewhere in LessTif. */
4006 xm_set_menu_resources_from_menu_face (f
, widget
)
4016 lface
= lface_from_face_name (f
, Qmenu
, 1);
4017 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4019 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4021 XtSetArg (av
[ac
], XmNforeground
, face
->foreground
);
4025 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4027 XtSetArg (av
[ac
], XmNbackground
, face
->background
);
4031 /* If any font-related attribute of `menu' is set, set the font. */
4033 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4034 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4035 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4036 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4037 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4039 #if 0 /* Setting the font leads to an infinite loop somewhere
4040 in LessTif during geometry computation. */
4042 fe
= XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT
, face
->font
);
4043 fl
= XmFontListAppendEntry (NULL
, fe
);
4044 XtSetArg (av
[ac
], XmNfontList
, fl
);
4049 xassert (ac
<= sizeof av
/ sizeof *av
);
4053 struct x_resources res
;
4055 XtSetValues (widget
, av
, ac
);
4056 res
.av
= av
, res
.ac
= ac
;
4057 XtApplyToWidgets (widget
, xm_apply_resources
, &res
);
4059 XmFontListFree (fl
);
4064 #endif /* USE_MOTIF */
4068 static void xl_apply_resources
P_ ((Widget
, XtPointer
));
4069 static void xl_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
4072 /* Set widget W's resources from P which points to an x_resources
4076 xl_apply_resources (widget
, p
)
4080 struct x_resources
*res
= (struct x_resources
*) p
;
4081 XtSetValues (widget
, res
->av
, res
->ac
);
4085 /* On frame F, set X resources of menu-widget WIDGET from face `menu'.
4086 This is the Lucid version. */
4089 xl_set_menu_resources_from_menu_face (f
, widget
)
4098 lface
= lface_from_face_name (f
, Qmenu
, 1);
4099 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4101 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4103 XtSetArg (av
[ac
], XtNforeground
, face
->foreground
);
4107 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4109 XtSetArg (av
[ac
], XtNbackground
, face
->background
);
4114 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4115 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4116 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4117 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4118 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4120 XtSetArg (av
[ac
], XtNfont
, face
->font
);
4126 struct x_resources res
;
4128 XtSetValues (widget
, av
, ac
);
4130 /* We must do children here in case we're handling a pop-up menu
4131 in which case WIDGET is a popup shell. XtApplyToWidgets
4132 is a function from lwlib. */
4133 res
.av
= av
, res
.ac
= ac
;
4134 XtApplyToWidgets (widget
, xl_apply_resources
, &res
);
4138 #endif /* USE_LUCID */
4141 /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */
4144 x_set_menu_resources_from_menu_face (f
, widget
)
4148 /* Realized faces may have been removed on frame F, e.g. because of
4149 face attribute changes. Recompute them, if necessary, since we
4150 will need the `menu' face. */
4151 if (f
->face_cache
->used
== 0)
4152 recompute_basic_faces (f
);
4155 xl_set_menu_resources_from_menu_face (f
, widget
);
4158 xm_set_menu_resources_from_menu_face (f
, widget
);
4162 #endif /* USE_X_TOOLKIT */
4164 #endif /* HAVE_X_WINDOWS */
4168 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4169 Sinternal_get_lisp_face_attribute
,
4171 "Return face attribute KEYWORD of face SYMBOL.\n\
4172 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
4173 face attribute name, signal an error.\n\
4174 If the optional argument FRAME is given, report on face FACE in that\n\
4175 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
4176 frames). If FRAME is omitted or nil, use the selected frame.")
4177 (symbol
, keyword
, frame
)
4178 Lisp_Object symbol
, keyword
, frame
;
4180 Lisp_Object lface
, value
= Qnil
;
4182 CHECK_SYMBOL (symbol
, 0);
4183 CHECK_SYMBOL (keyword
, 1);
4186 lface
= lface_from_face_name (NULL
, symbol
, 1);
4190 frame
= selected_frame
;
4191 CHECK_LIVE_FRAME (frame
, 2);
4192 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4195 if (EQ (keyword
, QCfamily
))
4196 value
= LFACE_FAMILY (lface
);
4197 else if (EQ (keyword
, QCheight
))
4198 value
= LFACE_HEIGHT (lface
);
4199 else if (EQ (keyword
, QCweight
))
4200 value
= LFACE_WEIGHT (lface
);
4201 else if (EQ (keyword
, QCslant
))
4202 value
= LFACE_SLANT (lface
);
4203 else if (EQ (keyword
, QCunderline
))
4204 value
= LFACE_UNDERLINE (lface
);
4205 else if (EQ (keyword
, QCoverline
))
4206 value
= LFACE_OVERLINE (lface
);
4207 else if (EQ (keyword
, QCstrike_through
))
4208 value
= LFACE_STRIKE_THROUGH (lface
);
4209 else if (EQ (keyword
, QCbox
))
4210 value
= LFACE_BOX (lface
);
4211 else if (EQ (keyword
, QCinverse_video
)
4212 || EQ (keyword
, QCreverse_video
))
4213 value
= LFACE_INVERSE (lface
);
4214 else if (EQ (keyword
, QCforeground
))
4215 value
= LFACE_FOREGROUND (lface
);
4216 else if (EQ (keyword
, QCbackground
))
4217 value
= LFACE_BACKGROUND (lface
);
4218 else if (EQ (keyword
, QCstipple
))
4219 value
= LFACE_STIPPLE (lface
);
4220 else if (EQ (keyword
, QCwidth
))
4221 value
= LFACE_SWIDTH (lface
);
4222 else if (EQ (keyword
, QCfont
))
4223 value
= LFACE_FONT (lface
);
4225 signal_error ("Invalid face attribute name", keyword
);
4231 DEFUN ("internal-lisp-face-attribute-values",
4232 Finternal_lisp_face_attribute_values
,
4233 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4234 "Return a list of valid discrete values for face attribute ATTR.\n\
4235 Value is nil if ATTR doesn't have a discrete set of valid values.")
4239 Lisp_Object result
= Qnil
;
4241 CHECK_SYMBOL (attr
, 0);
4243 if (EQ (attr
, QCweight
)
4244 || EQ (attr
, QCslant
)
4245 || EQ (attr
, QCwidth
))
4247 /* Extract permissible symbols from tables. */
4248 struct table_entry
*table
;
4251 if (EQ (attr
, QCweight
))
4252 table
= weight_table
, dim
= DIM (weight_table
);
4253 else if (EQ (attr
, QCslant
))
4254 table
= slant_table
, dim
= DIM (slant_table
);
4256 table
= swidth_table
, dim
= DIM (swidth_table
);
4258 for (i
= 0; i
< dim
; ++i
)
4260 Lisp_Object symbol
= *table
[i
].symbol
;
4261 Lisp_Object tail
= result
;
4264 && !EQ (XCAR (tail
), symbol
))
4268 result
= Fcons (symbol
, result
);
4271 else if (EQ (attr
, QCunderline
))
4272 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4273 else if (EQ (attr
, QCoverline
))
4274 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4275 else if (EQ (attr
, QCstrike_through
))
4276 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4277 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4278 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4284 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4285 Sinternal_merge_in_global_face
, 2, 2, 0,
4286 "Add attributes from frame-default definition of FACE to FACE on FRAME.")
4288 Lisp_Object face
, frame
;
4290 Lisp_Object global_lface
, local_lface
;
4291 CHECK_LIVE_FRAME (frame
, 1);
4292 global_lface
= lface_from_face_name (NULL
, face
, 1);
4293 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4294 if (NILP (local_lface
))
4295 local_lface
= Finternal_make_lisp_face (face
, frame
);
4296 merge_face_vectors (XVECTOR (global_lface
)->contents
,
4297 XVECTOR (local_lface
)->contents
);
4302 /* The following function is implemented for compatibility with 20.2.
4303 The function is used in x-resolve-fonts when it is asked to
4304 return fonts with the same size as the font of a face. This is
4305 done in fontset.el. */
4307 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4308 "Return the font name of face FACE, or nil if it is unspecified.\n\
4309 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4310 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4311 The font default for a face is either nil, or a list\n\
4312 of the form (bold), (italic) or (bold italic).\n\
4313 If FRAME is omitted or nil, use the selected frame.")
4315 Lisp_Object face
, frame
;
4319 Lisp_Object result
= Qnil
;
4320 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4322 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4323 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4324 result
= Fcons (Qbold
, result
);
4326 if (!NILP (LFACE_SLANT (lface
))
4327 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4328 result
= Fcons (Qitalic
, result
);
4334 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4335 int face_id
= lookup_named_face (f
, face
, 0);
4336 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4337 return build_string (face
->font_name
);
4342 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4343 all attributes are `equal'. Tries to be fast because this function
4344 is called quite often. */
4347 lface_equal_p (v1
, v2
)
4348 Lisp_Object
*v1
, *v2
;
4352 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4354 Lisp_Object a
= v1
[i
];
4355 Lisp_Object b
= v2
[i
];
4357 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4358 and the other is specified. */
4359 equal_p
= XTYPE (a
) == XTYPE (b
);
4368 equal_p
= (XSTRING (a
)->size
== XSTRING (b
)->size
4369 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4370 XSTRING (a
)->size
) == 0);
4379 equal_p
= !NILP (Fequal (a
, b
));
4389 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4390 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4391 "True if FACE1 and FACE2 are equal.\n\
4392 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4393 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4394 If FRAME is omitted or nil, use the selected frame.")
4395 (face1
, face2
, frame
)
4396 Lisp_Object face1
, face2
, frame
;
4400 Lisp_Object lface1
, lface2
;
4405 /* Don't use check_x_frame here because this function is called
4406 before X frames exist. At that time, if FRAME is nil,
4407 selected_frame will be used which is the frame dumped with
4408 Emacs. That frame is not an X frame. */
4409 f
= frame_or_selected_frame (frame
, 2);
4411 lface1
= lface_from_face_name (NULL
, face1
, 1);
4412 lface2
= lface_from_face_name (NULL
, face2
, 1);
4413 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4414 XVECTOR (lface2
)->contents
);
4415 return equal_p
? Qt
: Qnil
;
4419 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4420 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4421 "True if FACE has no attribute specified.\n\
4422 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4423 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4424 If FRAME is omitted or nil, use the selected frame.")
4426 Lisp_Object face
, frame
;
4433 frame
= selected_frame
;
4434 CHECK_LIVE_FRAME (frame
, 0);
4438 lface
= lface_from_face_name (NULL
, face
, 1);
4440 lface
= lface_from_face_name (f
, face
, 1);
4442 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4443 if (!UNSPECIFIEDP (XVECTOR (lface
)->contents
[i
]))
4446 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4450 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4452 "Return an alist of frame-local faces defined on FRAME.\n\
4453 For internal use only.")
4457 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4458 return f
->face_alist
;
4462 /* Return a hash code for Lisp string STRING with case ignored. Used
4463 below in computing a hash value for a Lisp face. */
4465 static INLINE
unsigned
4466 hash_string_case_insensitive (string
)
4471 xassert (STRINGP (string
));
4472 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4473 hash
= (hash
<< 1) ^ tolower (*s
);
4478 /* Return a hash code for face attribute vector V. */
4480 static INLINE
unsigned
4484 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4485 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4486 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4487 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
4488 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
4489 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
4490 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4494 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4495 considering charsets/registries). They do if they specify the same
4496 family, point size, weight, width, slant, and fontset. Both LFACE1
4497 and LFACE2 must be fully-specified. */
4500 lface_same_font_attributes_p (lface1
, lface2
)
4501 Lisp_Object
*lface1
, *lface2
;
4503 xassert (lface_fully_specified_p (lface1
)
4504 && lface_fully_specified_p (lface2
));
4505 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4506 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4507 && (XFASTINT (lface1
[LFACE_HEIGHT_INDEX
])
4508 == XFASTINT (lface2
[LFACE_HEIGHT_INDEX
]))
4509 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4510 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4511 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4512 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4513 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
4514 && STRINGP (lface2
[LFACE_FONT_INDEX
])
4515 && xstricmp (XSTRING (lface1
[LFACE_FONT_INDEX
])->data
,
4516 XSTRING (lface2
[LFACE_FONT_INDEX
])->data
))));
4521 /***********************************************************************
4523 ***********************************************************************/
4525 /* Allocate and return a new realized face for Lisp face attribute
4528 static struct face
*
4529 make_realized_face (attr
)
4532 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4533 bzero (face
, sizeof *face
);
4534 face
->ascii_face
= face
;
4535 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4540 /* Free realized face FACE, including its X resources. FACE may
4544 free_realized_face (f
, face
)
4550 #ifdef HAVE_WINDOW_SYSTEM
4551 if (FRAME_WINDOW_P (f
))
4553 /* Free fontset of FACE if it is ASCII face. */
4554 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4555 free_face_fontset (f
, face
);
4558 x_free_gc (f
, face
->gc
);
4562 free_face_colors (f
, face
);
4563 x_destroy_bitmap (f
, face
->stipple
);
4565 #endif /* HAVE_WINDOW_SYSTEM */
4572 /* Prepare face FACE for subsequent display on frame F. This
4573 allocated GCs if they haven't been allocated yet or have been freed
4574 by clearing the face cache. */
4577 prepare_face_for_display (f
, face
)
4581 #ifdef HAVE_WINDOW_SYSTEM
4582 xassert (FRAME_WINDOW_P (f
));
4587 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4589 xgcv
.foreground
= face
->foreground
;
4590 xgcv
.background
= face
->background
;
4591 #ifdef HAVE_X_WINDOWS
4592 xgcv
.graphics_exposures
= False
;
4594 /* The font of FACE may be null if we couldn't load it. */
4597 #ifdef HAVE_X_WINDOWS
4598 xgcv
.font
= face
->font
->fid
;
4601 xgcv
.font
= face
->font
;
4607 #ifdef HAVE_X_WINDOWS
4610 xgcv
.fill_style
= FillOpaqueStippled
;
4611 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4612 mask
|= GCFillStyle
| GCStipple
;
4615 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4618 #endif /* HAVE_WINDOW_SYSTEM */
4622 /***********************************************************************
4624 ***********************************************************************/
4626 /* Return a new face cache for frame F. */
4628 static struct face_cache
*
4632 struct face_cache
*c
;
4635 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4636 bzero (c
, sizeof *c
);
4637 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4638 c
->buckets
= (struct face
**) xmalloc (size
);
4639 bzero (c
->buckets
, size
);
4641 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4647 /* Clear out all graphics contexts for all realized faces, except for
4648 the basic faces. This should be done from time to time just to avoid
4649 keeping too many graphics contexts that are no longer needed. */
4653 struct face_cache
*c
;
4655 if (c
&& FRAME_WINDOW_P (c
->f
))
4657 #ifdef HAVE_WINDOW_SYSTEM
4659 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4661 struct face
*face
= c
->faces_by_id
[i
];
4662 if (face
&& face
->gc
)
4664 x_free_gc (c
->f
, face
->gc
);
4668 #endif /* HAVE_WINDOW_SYSTEM */
4673 /* Free all realized faces in face cache C, including basic faces. C
4674 may be null. If faces are freed, make sure the frame's current
4675 matrix is marked invalid, so that a display caused by an expose
4676 event doesn't try to use faces we destroyed. */
4679 free_realized_faces (c
)
4680 struct face_cache
*c
;
4685 struct frame
*f
= c
->f
;
4687 /* We must block input here because we can't process X events
4688 safely while only some faces are freed, or when the frame's
4689 current matrix still references freed faces. */
4692 for (i
= 0; i
< c
->used
; ++i
)
4694 free_realized_face (f
, c
->faces_by_id
[i
]);
4695 c
->faces_by_id
[i
] = NULL
;
4699 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4700 bzero (c
->buckets
, size
);
4702 /* Must do a thorough redisplay the next time. Mark current
4703 matrices as invalid because they will reference faces freed
4704 above. This function is also called when a frame is
4705 destroyed. In this case, the root window of F is nil. */
4706 if (WINDOWP (f
->root_window
))
4708 clear_current_matrices (f
);
4709 ++windows_or_buffers_changed
;
4717 /* Free all faces realized for multibyte characters on frame F that
4721 free_realized_multibyte_face (f
, fontset
)
4725 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4729 /* We must block input here because we can't process X events safely
4730 while only some faces are freed, or when the frame's current
4731 matrix still references freed faces. */
4734 for (i
= 0; i
< cache
->used
; i
++)
4736 face
= cache
->faces_by_id
[i
];
4738 && face
!= face
->ascii_face
4739 && face
->fontset
== fontset
)
4741 uncache_face (cache
, face
);
4742 free_realized_face (f
, face
);
4746 /* Must do a thorough redisplay the next time. Mark current
4747 matrices as invalid because they will reference faces freed
4748 above. This function is also called when a frame is destroyed.
4749 In this case, the root window of F is nil. */
4750 if (WINDOWP (f
->root_window
))
4752 clear_current_matrices (f
);
4753 ++windows_or_buffers_changed
;
4760 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4761 This is done after attributes of a named face have been changed,
4762 because we can't tell which realized faces depend on that face. */
4765 free_all_realized_faces (frame
)
4771 FOR_EACH_FRAME (rest
, frame
)
4772 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4775 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4779 /* Free face cache C and faces in it, including their X resources. */
4783 struct face_cache
*c
;
4787 free_realized_faces (c
);
4789 xfree (c
->faces_by_id
);
4795 /* Cache realized face FACE in face cache C. HASH is the hash value
4796 of FACE. If FACE->fontset >= 0, add the new face to the end of the
4797 collision list of the face hash table of C. This is done because
4798 otherwise lookup_face would find FACE for every character, even if
4799 faces with the same attributes but for specific characters exist. */
4802 cache_face (c
, face
, hash
)
4803 struct face_cache
*c
;
4807 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4811 if (face
->fontset
>= 0)
4813 struct face
*last
= c
->buckets
[i
];
4824 c
->buckets
[i
] = face
;
4825 face
->prev
= face
->next
= NULL
;
4831 face
->next
= c
->buckets
[i
];
4833 face
->next
->prev
= face
;
4834 c
->buckets
[i
] = face
;
4837 /* Find a free slot in C->faces_by_id and use the index of the free
4838 slot as FACE->id. */
4839 for (i
= 0; i
< c
->used
; ++i
)
4840 if (c
->faces_by_id
[i
] == NULL
)
4844 /* Maybe enlarge C->faces_by_id. */
4845 if (i
== c
->used
&& c
->used
== c
->size
)
4847 int new_size
= 2 * c
->size
;
4848 int sz
= new_size
* sizeof *c
->faces_by_id
;
4849 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4854 /* Check that FACE got a unique id. */
4859 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4860 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4866 #endif /* GLYPH_DEBUG */
4868 c
->faces_by_id
[i
] = face
;
4874 /* Remove face FACE from cache C. */
4877 uncache_face (c
, face
)
4878 struct face_cache
*c
;
4881 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4884 face
->prev
->next
= face
->next
;
4886 c
->buckets
[i
] = face
->next
;
4889 face
->next
->prev
= face
->prev
;
4891 c
->faces_by_id
[face
->id
] = NULL
;
4892 if (face
->id
== c
->used
)
4897 /* Look up a realized face with face attributes ATTR in the face cache
4898 of frame F. The face will be used to display character C. Value
4899 is the ID of the face found. If no suitable face is found, realize
4900 a new one. In that case, if C is a multibyte character, BASE_FACE
4901 is a face that has the same attributes. */
4904 lookup_face (f
, attr
, c
, base_face
)
4908 struct face
*base_face
;
4910 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4915 xassert (cache
!= NULL
);
4916 check_lface_attrs (attr
);
4918 /* Look up ATTR in the face cache. */
4919 hash
= lface_hash (attr
);
4920 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4922 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4923 if (face
->hash
== hash
4924 && (!FRAME_WINDOW_P (f
)
4925 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
4926 && lface_equal_p (face
->lface
, attr
))
4929 /* If not found, realize a new face. */
4931 face
= realize_face (cache
, attr
, c
, base_face
, -1);
4934 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4936 /* When this function is called from face_for_char (in this case, C is
4937 a multibyte character), a fontset of a face returned by
4938 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
4939 C) is not sutisfied. The fontset is set for this face by
4940 face_for_char later. */
4942 if (FRAME_WINDOW_P (f
))
4943 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
4945 #endif /* GLYPH_DEBUG */
4951 /* Return the face id of the realized face for named face SYMBOL on
4952 frame F suitable for displaying character C. */
4955 lookup_named_face (f
, symbol
, c
)
4960 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4961 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4962 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4964 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
4965 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4966 merge_face_vectors (symbol_attrs
, attrs
);
4967 return lookup_face (f
, attrs
, c
, NULL
);
4971 /* Return the ID of the realized ASCII face of Lisp face with ID
4972 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4975 ascii_face_of_lisp_face (f
, lface_id
)
4981 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4983 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4984 face_id
= lookup_named_face (f
, face_name
, 0);
4993 /* Return a face for charset ASCII that is like the face with id
4994 FACE_ID on frame F, but has a font that is STEPS steps smaller.
4995 STEPS < 0 means larger. Value is the id of the face. */
4998 smaller_face (f
, face_id
, steps
)
5002 #ifdef HAVE_WINDOW_SYSTEM
5004 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5005 int pt
, last_pt
, last_height
;
5008 struct face
*new_face
;
5010 /* If not called for an X frame, just return the original face. */
5011 if (FRAME_TERMCAP_P (f
))
5014 /* Try in increments of 1/2 pt. */
5015 delta
= steps
< 0 ? 5 : -5;
5016 steps
= abs (steps
);
5018 face
= FACE_FROM_ID (f
, face_id
);
5019 bcopy (face
->lface
, attrs
, sizeof attrs
);
5020 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5021 new_face_id
= face_id
;
5022 last_height
= FONT_HEIGHT (face
->font
);
5026 /* Give up if we cannot find a font within 10pt. */
5027 && abs (last_pt
- pt
) < 100)
5029 /* Look up a face for a slightly smaller/larger font. */
5031 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5032 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5033 new_face
= FACE_FROM_ID (f
, new_face_id
);
5035 /* If height changes, count that as one step. */
5036 if (FONT_HEIGHT (new_face
->font
) != last_height
)
5039 last_height
= FONT_HEIGHT (new_face
->font
);
5046 #else /* not HAVE_WINDOW_SYSTEM */
5050 #endif /* not HAVE_WINDOW_SYSTEM */
5054 /* Return a face for charset ASCII that is like the face with id
5055 FACE_ID on frame F, but has height HEIGHT. */
5058 face_with_height (f
, face_id
, height
)
5063 #ifdef HAVE_WINDOW_SYSTEM
5065 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5067 if (FRAME_TERMCAP_P (f
)
5071 face
= FACE_FROM_ID (f
, face_id
);
5072 bcopy (face
->lface
, attrs
, sizeof attrs
);
5073 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5074 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5075 #endif /* HAVE_WINDOW_SYSTEM */
5080 /* Return the face id of the realized face for named face SYMBOL on
5081 frame F suitable for displaying character C, and use attributes of
5082 the face FACE_ID for attributes that aren't completely specified by
5083 SYMBOL. This is like lookup_named_face, except that the default
5084 attributes come from FACE_ID, not from the default face. FACE_ID
5085 is assumed to be already realized. */
5088 lookup_derived_face (f
, symbol
, c
, face_id
)
5094 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5095 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5096 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5101 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5102 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5103 merge_face_vectors (symbol_attrs
, attrs
);
5104 return lookup_face (f
, attrs
, c
, default_face
);
5109 /***********************************************************************
5111 ***********************************************************************/
5113 DEFUN ("internal-set-font-selection-order",
5114 Finternal_set_font_selection_order
,
5115 Sinternal_set_font_selection_order
, 1, 1, 0,
5116 "Set font selection order for face font selection to ORDER.\n\
5117 ORDER must be a list of length 4 containing the symbols `:width',\n\
5118 `:height', `:weight', and `:slant'. Face attributes appearing\n\
5119 first in ORDER are matched first, e.g. if `:height' appears before\n\
5120 `:weight' in ORDER, font selection first tries to find a font with\n\
5121 a suitable height, and then tries to match the font weight.\n\
5130 CHECK_LIST (order
, 0);
5131 bzero (indices
, sizeof indices
);
5135 CONSP (list
) && i
< DIM (indices
);
5136 list
= XCDR (list
), ++i
)
5138 Lisp_Object attr
= XCAR (list
);
5141 if (EQ (attr
, QCwidth
))
5143 else if (EQ (attr
, QCheight
))
5144 xlfd
= XLFD_POINT_SIZE
;
5145 else if (EQ (attr
, QCweight
))
5147 else if (EQ (attr
, QCslant
))
5152 if (indices
[i
] != 0)
5158 || i
!= DIM (indices
)
5163 signal_error ("Invalid font sort order", order
);
5165 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5167 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5168 free_all_realized_faces (Qnil
);
5175 DEFUN ("internal-set-alternative-font-family-alist",
5176 Finternal_set_alternative_font_family_alist
,
5177 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5178 "Define alternative font families to try in face font selection.\n\
5179 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5180 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
5181 be found. Value is ALIST.")
5185 CHECK_LIST (alist
, 0);
5186 Vface_alternative_font_family_alist
= alist
;
5187 free_all_realized_faces (Qnil
);
5192 #ifdef HAVE_WINDOW_SYSTEM
5194 /* Value is non-zero if FONT is the name of a scalable font. The
5195 X11R6 XLFD spec says that point size, pixel size, and average width
5196 are zero for scalable fonts. Intlfonts contain at least one
5197 scalable font ("*-muleindian-1") for which this isn't true, so we
5198 just test average width. */
5201 font_scalable_p (font
)
5202 struct font_name
*font
;
5204 char *s
= font
->fields
[XLFD_AVGWIDTH
];
5205 return (*s
== '0' && *(s
+ 1) == '\0')
5207 /* Windows implementation of XLFD is slightly broken for backward
5208 compatibility with previous broken versions, so test for
5209 wildcards as well as 0. */
5216 /* Value is non-zero if FONT1 is a better match for font attributes
5217 VALUES than FONT2. VALUES is an array of face attribute values in
5218 font sort order. COMPARE_PT_P zero means don't compare point
5222 better_font_p (values
, font1
, font2
, compare_pt_p
)
5224 struct font_name
*font1
, *font2
;
5229 for (i
= 0; i
< 4; ++i
)
5231 int xlfd_idx
= font_sort_order
[i
];
5233 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
5235 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
5236 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
5238 if (delta1
> delta2
)
5240 else if (delta1
< delta2
)
5244 /* The difference may be equal because, e.g., the face
5245 specifies `italic' but we have only `regular' and
5246 `oblique'. Prefer `oblique' in this case. */
5247 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5248 && font1
->numeric
[xlfd_idx
] > values
[i
]
5249 && font2
->numeric
[xlfd_idx
] < values
[i
])
5261 /* Value is non-zero if FONT is an exact match for face attributes in
5262 SPECIFIED. SPECIFIED is an array of face attribute values in font
5266 exact_face_match_p (specified
, font
)
5268 struct font_name
*font
;
5272 for (i
= 0; i
< 4; ++i
)
5273 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5280 /* Value is the name of a scaled font, generated from scalable font
5281 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5282 Value is allocated from heap. */
5285 build_scalable_font_name (f
, font
, specified_pt
)
5287 struct font_name
*font
;
5290 char point_size
[20], pixel_size
[20];
5292 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5295 /* If scalable font is for a specific resolution, compute
5296 the point size we must specify from the resolution of
5297 the display and the specified resolution of the font. */
5298 if (font
->numeric
[XLFD_RESY
] != 0)
5300 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5301 pixel_value
= font
->numeric
[XLFD_RESY
] / 720.0 * pt
;
5306 pixel_value
= resy
/ 720.0 * pt
;
5309 /* Set point size of the font. */
5310 sprintf (point_size
, "%d", (int) pt
);
5311 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5312 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5314 /* Set pixel size. */
5315 sprintf (pixel_size
, "%d", pixel_value
);
5316 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5317 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5319 /* If font doesn't specify its resolution, use the
5320 resolution of the display. */
5321 if (font
->numeric
[XLFD_RESY
] == 0)
5324 sprintf (buffer
, "%d", (int) resy
);
5325 font
->fields
[XLFD_RESY
] = buffer
;
5326 font
->numeric
[XLFD_RESY
] = resy
;
5329 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5332 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5333 sprintf (buffer
, "%d", resx
);
5334 font
->fields
[XLFD_RESX
] = buffer
;
5335 font
->numeric
[XLFD_RESX
] = resx
;
5338 return build_font_name (font
);
5342 /* Value is non-zero if we are allowed to use scalable font FONT. We
5343 can't run a Lisp function here since this function may be called
5344 with input blocked. */
5347 may_use_scalable_font_p (font
, name
)
5348 struct font_name
*font
;
5351 if (EQ (Vscalable_fonts_allowed
, Qt
))
5353 else if (CONSP (Vscalable_fonts_allowed
))
5355 Lisp_Object tail
, regexp
;
5357 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5359 regexp
= XCAR (tail
);
5360 if (STRINGP (regexp
)
5361 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
5369 #endif /* SCALABLE_FONTS != 0 */
5372 /* Return the name of the best matching font for face attributes
5373 ATTRS in the array of font_name structures FONTS which contains
5374 NFONTS elements. Value is a font name which is allocated from
5375 the heap. FONTS is freed by this function. */
5378 best_matching_font (f
, attrs
, fonts
, nfonts
)
5381 struct font_name
*fonts
;
5385 struct font_name
*best
;
5393 /* Make specified font attributes available in `specified',
5394 indexed by sort order. */
5395 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5397 int xlfd_idx
= font_sort_order
[i
];
5399 if (xlfd_idx
== XLFD_SWIDTH
)
5400 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5401 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5402 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5403 else if (xlfd_idx
== XLFD_WEIGHT
)
5404 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5405 else if (xlfd_idx
== XLFD_SLANT
)
5406 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5416 /* Start with the first non-scalable font in the list. */
5417 for (i
= 0; i
< nfonts
; ++i
)
5418 if (!font_scalable_p (fonts
+ i
))
5421 /* Find the best match among the non-scalable fonts. */
5426 for (i
= 1; i
< nfonts
; ++i
)
5427 if (!font_scalable_p (fonts
+ i
)
5428 && better_font_p (specified
, fonts
+ i
, best
, 1))
5432 exact_p
= exact_face_match_p (specified
, best
);
5441 /* Unless we found an exact match among non-scalable fonts, see if
5442 we can find a better match among scalable fonts. */
5445 /* A scalable font is better if
5447 1. its weight, slant, swidth attributes are better, or.
5449 2. the best non-scalable font doesn't have the required
5450 point size, and the scalable fonts weight, slant, swidth
5453 int non_scalable_has_exact_height_p
;
5455 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5456 non_scalable_has_exact_height_p
= 1;
5458 non_scalable_has_exact_height_p
= 0;
5460 for (i
= 0; i
< nfonts
; ++i
)
5461 if (font_scalable_p (fonts
+ i
))
5464 || better_font_p (specified
, fonts
+ i
, best
, 0)
5465 || (!non_scalable_has_exact_height_p
5466 && !better_font_p (specified
, best
, fonts
+ i
, 0)))
5471 if (font_scalable_p (best
))
5472 font_name
= build_scalable_font_name (f
, best
, pt
);
5474 font_name
= build_font_name (best
);
5476 #else /* !SCALABLE_FONTS */
5478 /* Find the best non-scalable font. */
5481 for (i
= 1; i
< nfonts
; ++i
)
5483 xassert (!font_scalable_p (fonts
+ i
));
5484 if (better_font_p (specified
, fonts
+ i
, best
, 1))
5488 font_name
= build_font_name (best
);
5490 #endif /* !SCALABLE_FONTS */
5492 /* Free font_name structures. */
5493 free_font_names (fonts
, nfonts
);
5499 /* Try to get a list of fonts on frame F with font family FAMILY and
5500 registry/encoding REGISTRY. Return in *FONTS a pointer to a vector
5501 of font_name structures for the fonts matched. Value is the number
5505 try_font_list (f
, attrs
, pattern
, family
, registry
, fonts
)
5508 Lisp_Object pattern
, family
, registry
;
5509 struct font_name
**fonts
;
5513 if (NILP (family
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
5514 family
= attrs
[LFACE_FAMILY_INDEX
];
5516 nfonts
= font_list (f
, pattern
, family
, registry
, fonts
);
5518 if (nfonts
== 0 && !NILP (family
))
5522 /* Try alternative font families from
5523 Vface_alternative_font_family_alist. */
5524 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
5526 for (alter
= XCDR (alter
);
5527 CONSP (alter
) && nfonts
== 0;
5528 alter
= XCDR (alter
))
5530 if (STRINGP (XCAR (alter
)))
5531 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
5534 /* Try font family of the default face or "fixed". */
5537 struct face
*dflt
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5539 family
= dflt
->lface
[LFACE_FAMILY_INDEX
];
5541 family
= build_string ("fixed");
5542 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
5545 /* Try any family with the given registry. */
5547 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
5554 /* Return the fontset id of the base fontset name or alias name given
5555 by the fontset attribute of ATTRS. Value is -1 if the fontset
5556 attribute of ATTRS doesn't name a fontset. */
5559 face_fontset (attrs
)
5565 name
= attrs
[LFACE_FONT_INDEX
];
5566 if (!STRINGP (name
))
5568 return fs_query_fontset (name
, 0);
5572 /* Choose a name of font to use on frame F to display character C with
5573 Lisp face attributes specified by ATTRS. The font name is
5574 determined by the font-related attributes in ATTRS and the name
5575 pattern for C in FONTSET. Value is the font name which is
5576 allocated from the heap and must be freed by the caller, or NULL if
5577 we can get no information about the font name of C. It is assured
5578 that we always get some information for a single byte
5582 choose_face_font (f
, attrs
, fontset
, c
)
5587 Lisp_Object pattern
;
5588 char *font_name
= NULL
;
5589 struct font_name
*fonts
;
5592 /* Get (foundry and) family name and registry (and encoding) name of
5594 pattern
= fontset_font_pattern (f
, fontset
, c
);
5597 xassert (!SINGLE_BYTE_CHAR_P (c
));
5600 /* If what we got is a name pattern, return it. */
5601 if (STRINGP (pattern
))
5602 return xstrdup (XSTRING (pattern
)->data
);
5604 /* Family name may be specified both in ATTRS and car part of
5605 PATTERN. The former has higher priority if C is a single byte
5607 if (STRINGP (attrs
[LFACE_FAMILY_INDEX
])
5608 && SINGLE_BYTE_CHAR_P (c
))
5609 XCAR (pattern
) = Qnil
;
5611 /* Get a list of fonts matching that pattern and choose the
5612 best match for the specified face attributes from it. */
5613 nfonts
= try_font_list (f
, attrs
, Qnil
, XCAR (pattern
), XCDR (pattern
),
5615 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
);
5619 #endif /* HAVE_WINDOW_SYSTEM */
5623 /***********************************************************************
5625 ***********************************************************************/
5627 /* Realize basic faces on frame F. Value is zero if frame parameters
5628 of F don't contain enough information needed to realize the default
5632 realize_basic_faces (f
)
5637 /* Block input there so that we won't be surprised by an X expose
5638 event, for instance without having the faces set up. */
5641 if (realize_default_face (f
))
5643 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5644 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5645 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
5646 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5647 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5648 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5649 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5650 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5651 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5660 /* Realize the default face on frame F. If the face is not fully
5661 specified, make it fully-specified. Attributes of the default face
5662 that are not explicitly specified are taken from frame parameters. */
5665 realize_default_face (f
)
5668 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5670 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5671 Lisp_Object frame_font
;
5675 /* If the `default' face is not yet known, create it. */
5676 lface
= lface_from_face_name (f
, Qdefault
, 0);
5680 XSETFRAME (frame
, f
);
5681 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5684 #ifdef HAVE_WINDOW_SYSTEM
5685 if (FRAME_WINDOW_P (f
))
5687 /* Set frame_font to the value of the `font' frame parameter. */
5688 frame_font
= Fassq (Qfont
, f
->param_alist
);
5689 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
5690 frame_font
= XCDR (frame_font
);
5691 set_lface_from_font_name (f
, lface
, frame_font
, 0, 1);
5693 #endif /* HAVE_WINDOW_SYSTEM */
5695 if (!FRAME_WINDOW_P (f
))
5697 LFACE_FAMILY (lface
) = build_string ("default");
5698 LFACE_SWIDTH (lface
) = Qnormal
;
5699 LFACE_HEIGHT (lface
) = make_number (1);
5700 LFACE_WEIGHT (lface
) = Qnormal
;
5701 LFACE_SLANT (lface
) = Qnormal
;
5704 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5705 LFACE_UNDERLINE (lface
) = Qnil
;
5707 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5708 LFACE_OVERLINE (lface
) = Qnil
;
5710 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5711 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5713 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5714 LFACE_BOX (lface
) = Qnil
;
5716 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5717 LFACE_INVERSE (lface
) = Qnil
;
5719 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5721 /* This function is called so early that colors are not yet
5722 set in the frame parameter list. */
5723 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5725 if (CONSP (color
) && STRINGP (XCDR (color
)))
5726 LFACE_FOREGROUND (lface
) = XCDR (color
);
5727 else if (FRAME_WINDOW_P (f
))
5729 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5730 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5735 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5737 /* This function is called so early that colors are not yet
5738 set in the frame parameter list. */
5739 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5740 if (CONSP (color
) && STRINGP (XCDR (color
)))
5741 LFACE_BACKGROUND (lface
) = XCDR (color
);
5742 else if (FRAME_WINDOW_P (f
))
5744 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5745 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5750 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5751 LFACE_STIPPLE (lface
) = Qnil
;
5753 /* Realize the face; it must be fully-specified now. */
5754 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5755 check_lface (lface
);
5756 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5757 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
5762 /* Realize basic faces other than the default face in face cache C.
5763 SYMBOL is the face name, ID is the face id the realized face must
5764 have. The default face must have been realized already. */
5767 realize_named_face (f
, symbol
, id
)
5772 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5773 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5774 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5775 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5776 struct face
*new_face
;
5778 /* The default face must exist and be fully specified. */
5779 get_lface_attributes (f
, Qdefault
, attrs
, 1);
5780 check_lface_attrs (attrs
);
5781 xassert (lface_fully_specified_p (attrs
));
5783 /* If SYMBOL isn't know as a face, create it. */
5787 XSETFRAME (frame
, f
);
5788 lface
= Finternal_make_lisp_face (symbol
, frame
);
5791 /* Merge SYMBOL's face with the default face. */
5792 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5793 merge_face_vectors (symbol_attrs
, attrs
);
5795 /* Realize the face. */
5796 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
5800 /* Realize the fully-specified face with attributes ATTRS in face
5801 cache CACHE for character C. If C is a multibyte character,
5802 BASE_FACE is a face that has the same attributes. Otherwise,
5803 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
5804 ID of face to remove before caching the new face. Value is a
5805 pointer to the newly created realized face. */
5807 static struct face
*
5808 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
5809 struct face_cache
*cache
;
5812 struct face
*base_face
;
5817 /* LFACE must be fully specified. */
5818 xassert (cache
!= NULL
);
5819 check_lface_attrs (attrs
);
5821 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5823 /* Remove the former face. */
5824 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5825 uncache_face (cache
, former_face
);
5826 free_realized_face (cache
->f
, former_face
);
5829 if (FRAME_WINDOW_P (cache
->f
))
5830 face
= realize_x_face (cache
, attrs
, c
, base_face
);
5831 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5832 face
= realize_tty_face (cache
, attrs
, c
);
5836 /* Insert the new face. */
5837 cache_face (cache
, face
, lface_hash (attrs
));
5838 #ifdef HAVE_WINDOW_SYSTEM
5839 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
5840 load_face_font (cache
->f
, face
, c
);
5841 #endif /* HAVE_WINDOW_SYSTEM */
5846 /* Realize the fully-specified face with attributes ATTRS in face
5847 cache CACHE for character C. Do it for X frame CACHE->f. If C is
5848 a multibyte character, BASE_FACE is a face that has the same
5849 attributes. Otherwise, BASE_FACE is ignored. If the new face
5850 doesn't share font with the default face, a fontname is allocated
5851 from the heap and set in `font_name' of the new face, but it is not
5852 yet loaded here. Value is a pointer to the newly created realized
5855 static struct face
*
5856 realize_x_face (cache
, attrs
, c
, base_face
)
5857 struct face_cache
*cache
;
5860 struct face
*base_face
;
5862 #ifdef HAVE_WINDOW_SYSTEM
5863 struct face
*face
, *default_face
;
5865 Lisp_Object stipple
, overline
, strike_through
, box
;
5867 xassert (FRAME_WINDOW_P (cache
->f
));
5868 xassert (SINGLE_BYTE_CHAR_P (c
)
5871 /* Allocate a new realized face. */
5872 face
= make_realized_face (attrs
);
5876 /* If C is a multibyte character, we share all face attirbutes with
5877 BASE_FACE including the realized fontset. But, we must load a
5879 if (!SINGLE_BYTE_CHAR_P (c
))
5881 bcopy (base_face
, face
, sizeof *face
);
5884 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5885 face
->foreground_defaulted_p
= 1;
5886 face
->background_defaulted_p
= 1;
5887 face
->underline_defaulted_p
= 1;
5888 face
->overline_color_defaulted_p
= 1;
5889 face
->strike_through_color_defaulted_p
= 1;
5890 face
->box_color_defaulted_p
= 1;
5892 /* to force realize_face to load font */
5897 /* Now we are realizing a face for ASCII (and unibyte) characters. */
5899 /* Determine the font to use. Most of the time, the font will be
5900 the same as the font of the default face, so try that first. */
5901 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5903 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
5904 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5906 face
->font
= default_face
->font
;
5907 face
->fontset
= default_face
->fontset
;
5908 face
->font_info_id
= default_face
->font_info_id
;
5909 face
->font_name
= default_face
->font_name
;
5910 face
->ascii_face
= face
;
5912 /* But, as we can't share the fontset, make a new realized
5913 fontset that has the same base fontset as of the default
5916 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
5920 /* If the face attribute ATTRS specifies a fontset, use it as
5921 the base of a new realized fontset. Otherwise, use the
5922 default fontset as the base. The base determines registry
5923 and encoding of a font. It may also determine foundry and
5924 family. The other fields of font name pattern are
5925 constructed from ATTRS. */
5927 = make_fontset_for_ascii_face (f
, face_fontset (attrs
));
5928 face
->font
= NULL
; /* to force realize_face to load font */
5931 /* Load colors, and set remaining attributes. */
5933 load_face_colors (f
, face
, attrs
);
5936 box
= attrs
[LFACE_BOX_INDEX
];
5939 /* A simple box of line width 1 drawn in color given by
5941 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5943 face
->box
= FACE_SIMPLE_BOX
;
5944 face
->box_line_width
= 1;
5946 else if (INTEGERP (box
))
5948 /* Simple box of specified line width in foreground color of the
5950 xassert (XINT (box
) > 0);
5951 face
->box
= FACE_SIMPLE_BOX
;
5952 face
->box_line_width
= XFASTINT (box
);
5953 face
->box_color
= face
->foreground
;
5954 face
->box_color_defaulted_p
= 1;
5956 else if (CONSP (box
))
5958 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5959 being one of `raised' or `sunken'. */
5960 face
->box
= FACE_SIMPLE_BOX
;
5961 face
->box_color
= face
->foreground
;
5962 face
->box_color_defaulted_p
= 1;
5963 face
->box_line_width
= 1;
5967 Lisp_Object keyword
, value
;
5969 keyword
= XCAR (box
);
5977 if (EQ (keyword
, QCline_width
))
5979 if (INTEGERP (value
) && XINT (value
) > 0)
5980 face
->box_line_width
= XFASTINT (value
);
5982 else if (EQ (keyword
, QCcolor
))
5984 if (STRINGP (value
))
5986 face
->box_color
= load_color (f
, face
, value
,
5988 face
->use_box_color_for_shadows_p
= 1;
5991 else if (EQ (keyword
, QCstyle
))
5993 if (EQ (value
, Qreleased_button
))
5994 face
->box
= FACE_RAISED_BOX
;
5995 else if (EQ (value
, Qpressed_button
))
5996 face
->box
= FACE_SUNKEN_BOX
;
6001 /* Text underline, overline, strike-through. */
6003 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
6005 /* Use default color (same as foreground color). */
6006 face
->underline_p
= 1;
6007 face
->underline_defaulted_p
= 1;
6008 face
->underline_color
= 0;
6010 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
6012 /* Use specified color. */
6013 face
->underline_p
= 1;
6014 face
->underline_defaulted_p
= 0;
6015 face
->underline_color
6016 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
6017 LFACE_UNDERLINE_INDEX
);
6019 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6021 face
->underline_p
= 0;
6022 face
->underline_defaulted_p
= 0;
6023 face
->underline_color
= 0;
6026 overline
= attrs
[LFACE_OVERLINE_INDEX
];
6027 if (STRINGP (overline
))
6029 face
->overline_color
6030 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
6031 LFACE_OVERLINE_INDEX
);
6032 face
->overline_p
= 1;
6034 else if (EQ (overline
, Qt
))
6036 face
->overline_color
= face
->foreground
;
6037 face
->overline_color_defaulted_p
= 1;
6038 face
->overline_p
= 1;
6041 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6042 if (STRINGP (strike_through
))
6044 face
->strike_through_color
6045 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6046 LFACE_STRIKE_THROUGH_INDEX
);
6047 face
->strike_through_p
= 1;
6049 else if (EQ (strike_through
, Qt
))
6051 face
->strike_through_color
= face
->foreground
;
6052 face
->strike_through_color_defaulted_p
= 1;
6053 face
->strike_through_p
= 1;
6056 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6057 if (!NILP (stipple
))
6058 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6060 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
6062 #endif /* HAVE_WINDOW_SYSTEM */
6066 /* Realize the fully-specified face with attributes ATTRS in face
6067 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
6068 pointer to the newly created realized face. */
6070 static struct face
*
6071 realize_tty_face (cache
, attrs
, c
)
6072 struct face_cache
*cache
;
6079 Lisp_Object tty_defined_color_alist
6080 = find_symbol_value (intern ("tty-defined-color-alist"));
6081 Lisp_Object tty_color_alist
= intern ("tty-color-alist");
6083 int face_colors_defaulted
= 0;
6085 /* Frame must be a termcap frame. */
6086 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6088 /* Allocate a new realized face. */
6089 face
= make_realized_face (attrs
);
6090 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6092 /* Map face attributes to TTY appearances. We map slant to
6093 dimmed text because we want italic text to appear differently
6094 and because dimmed text is probably used infrequently. */
6095 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6096 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6098 if (weight
> XLFD_WEIGHT_MEDIUM
)
6099 face
->tty_bold_p
= 1;
6100 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6101 face
->tty_dim_p
= 1;
6102 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6103 face
->tty_underline_p
= 1;
6104 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6105 face
->tty_reverse_p
= 1;
6107 /* Map color names to color indices. */
6108 face
->foreground
= FACE_TTY_DEFAULT_FG_COLOR
;
6109 face
->background
= FACE_TTY_DEFAULT_BG_COLOR
;
6111 XSETFRAME (frame
, cache
->f
);
6112 color
= attrs
[LFACE_FOREGROUND_INDEX
];
6114 && XSTRING (color
)->size
6115 && CONSP (tty_defined_color_alist
)
6116 && (color
= Fassoc (color
, call1 (tty_color_alist
, frame
)),
6118 /* Associations in tty-defined-color-alist are of the form
6119 (NAME INDEX R G B). We need the INDEX part. */
6120 face
->foreground
= XINT (XCAR (XCDR (color
)));
6122 if (face
->foreground
== FACE_TTY_DEFAULT_FG_COLOR
6123 && STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]))
6125 face
->foreground
= load_color (cache
->f
, face
,
6126 attrs
[LFACE_FOREGROUND_INDEX
],
6127 LFACE_FOREGROUND_INDEX
);
6129 #if defined (MSDOS) || defined (WINDOWSNT)
6130 /* If the foreground of the default face is the default color,
6131 use the foreground color defined by the frame. */
6133 if (FRAME_MSDOS_P (cache
->f
))
6137 if (face
->foreground
== FACE_TTY_DEFAULT_FG_COLOR
6138 || face
->foreground
== FACE_TTY_DEFAULT_COLOR
)
6140 face
->foreground
= FRAME_FOREGROUND_PIXEL (cache
->f
);
6141 attrs
[LFACE_FOREGROUND_INDEX
] =
6142 tty_color_name (cache
->f
, face
->foreground
);
6143 face_colors_defaulted
= 1;
6145 else if (face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6147 face
->foreground
= FRAME_BACKGROUND_PIXEL (cache
->f
);
6148 attrs
[LFACE_FOREGROUND_INDEX
] =
6149 tty_color_name (cache
->f
, face
->foreground
);
6150 face_colors_defaulted
= 1;
6155 #endif /* MSDOS or WINDOWSNT */
6158 color
= attrs
[LFACE_BACKGROUND_INDEX
];
6160 && XSTRING (color
)->size
6161 && CONSP (tty_defined_color_alist
)
6162 && (color
= Fassoc (color
, call1 (tty_color_alist
, frame
)),
6164 /* Associations in tty-defined-color-alist are of the form
6165 (NAME INDEX R G B). We need the INDEX part. */
6166 face
->background
= XINT (XCAR (XCDR (color
)));
6168 if (face
->background
== FACE_TTY_DEFAULT_BG_COLOR
6169 && STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]))
6171 face
->background
= load_color (cache
->f
, face
,
6172 attrs
[LFACE_BACKGROUND_INDEX
],
6173 LFACE_BACKGROUND_INDEX
);
6174 #if defined (MSDOS) || defined (WINDOWSNT)
6175 /* If the background of the default face is the default color,
6176 use the background color defined by the frame. */
6178 if (FRAME_MSDOS_P (cache
->f
))
6182 if (face
->background
== FACE_TTY_DEFAULT_BG_COLOR
6183 || face
->background
== FACE_TTY_DEFAULT_COLOR
)
6185 face
->background
= FRAME_BACKGROUND_PIXEL (cache
->f
);
6186 attrs
[LFACE_BACKGROUND_INDEX
] =
6187 tty_color_name (cache
->f
, face
->background
);
6188 face_colors_defaulted
= 1;
6190 else if (face
->background
== FACE_TTY_DEFAULT_FG_COLOR
)
6192 face
->background
= FRAME_FOREGROUND_PIXEL (cache
->f
);
6193 attrs
[LFACE_BACKGROUND_INDEX
] =
6194 tty_color_name (cache
->f
, face
->background
);
6195 face_colors_defaulted
= 1;
6200 #endif /* MSDOS or WINDOWSNT */
6203 /* Swap colors if face is inverse-video. If the colors are taken
6204 from the frame colors, they are already inverted, since the
6205 frame-creation function calls x-handle-reverse-video. */
6206 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6208 unsigned long tem
= face
->foreground
;
6210 face
->foreground
= face
->background
;
6211 face
->background
= tem
;
6214 if (tty_suppress_bold_inverse_default_colors_p
6216 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6217 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6218 face
->tty_bold_p
= 0;
6224 DEFUN ("tty-suppress-bold-inverse-default-colors",
6225 Ftty_suppress_bold_inverse_default_colors
,
6226 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6227 "Suppress/allow boldness of faces with inverse default colors.\n\
6228 SUPPRESS non-nil means suppress it.\n\
6229 This affects bold faces on TTYs whose foreground is the default background\n\
6230 color of the display and whose background is the default foreground color.\n\
6231 For such faces, no bold text will be displayed.")
6233 Lisp_Object suppress
;
6235 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6236 ++face_change_count
;
6242 /***********************************************************************
6244 ***********************************************************************/
6246 /* Return the ID of the face to use to display character CH with face
6247 property PROP on frame F in current_buffer. */
6250 compute_char_face (f
, ch
, prop
)
6257 if (NILP (current_buffer
->enable_multibyte_characters
))
6262 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6263 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
6267 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6268 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6269 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6270 merge_face_vector_with_property (f
, attrs
, prop
);
6271 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
6278 /* Return the face ID associated with buffer position POS for
6279 displaying ASCII characters. Return in *ENDPTR the position at
6280 which a different face is needed, as far as text properties and
6281 overlays are concerned. W is a window displaying current_buffer.
6283 REGION_BEG, REGION_END delimit the region, so it can be
6286 LIMIT is a position not to scan beyond. That is to limit the time
6287 this function can take.
6289 If MOUSE is non-zero, use the character's mouse-face, not its face.
6291 The face returned is suitable for displaying ASCII characters. */
6294 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6295 endptr
, limit
, mouse
)
6298 int region_beg
, region_end
;
6303 struct frame
*f
= XFRAME (w
->frame
);
6304 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6305 Lisp_Object prop
, position
;
6307 Lisp_Object
*overlay_vec
;
6310 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6311 Lisp_Object limit1
, end
;
6312 struct face
*default_face
;
6313 int multibyte_p
= !NILP (current_buffer
->enable_multibyte_characters
);
6315 /* W must display the current buffer. We could write this function
6316 to use the frame and buffer of W, but right now it doesn't. */
6317 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6319 XSETFRAME (frame
, f
);
6320 XSETFASTINT (position
, pos
);
6323 if (pos
< region_beg
&& region_beg
< endpos
)
6324 endpos
= region_beg
;
6326 /* Get the `face' or `mouse_face' text property at POS, and
6327 determine the next position at which the property changes. */
6328 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6329 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6330 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6332 endpos
= XINT (end
);
6334 /* Look at properties from overlays. */
6339 /* First try with room for 40 overlays. */
6341 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6342 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6343 &next_overlay
, NULL
);
6345 /* If there are more than 40, make enough space for all, and try
6347 if (noverlays
> len
)
6350 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6351 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6352 &next_overlay
, NULL
);
6355 if (next_overlay
< endpos
)
6356 endpos
= next_overlay
;
6361 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6363 /* Optimize common cases where we can use the default face. */
6366 && !(pos
>= region_beg
&& pos
< region_end
))
6367 return DEFAULT_FACE_ID
;
6369 /* Begin with attributes from the default face. */
6370 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6372 /* Merge in attributes specified via text properties. */
6374 merge_face_vector_with_property (f
, attrs
, prop
);
6376 /* Now merge the overlay data. */
6377 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6378 for (i
= 0; i
< noverlays
; i
++)
6383 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6385 merge_face_vector_with_property (f
, attrs
, prop
);
6387 oend
= OVERLAY_END (overlay_vec
[i
]);
6388 oendpos
= OVERLAY_POSITION (oend
);
6389 if (oendpos
< endpos
)
6393 /* If in the region, merge in the region face. */
6394 if (pos
>= region_beg
&& pos
< region_end
)
6396 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6397 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6399 if (region_end
< endpos
)
6400 endpos
= region_end
;
6405 /* Look up a realized face with the given face attributes,
6406 or realize a new one for ASCII characters. */
6407 return lookup_face (f
, attrs
, 0, NULL
);
6411 /* Compute the face at character position POS in Lisp string STRING on
6412 window W, for ASCII characters.
6414 If STRING is an overlay string, it comes from position BUFPOS in
6415 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6416 not an overlay string. W must display the current buffer.
6417 REGION_BEG and REGION_END give the start and end positions of the
6418 region; both are -1 if no region is visible. BASE_FACE_ID is the
6419 id of the basic face to merge with. It is usually equal to
6420 DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID
6421 for strings displayed in the mode or top line.
6423 Set *ENDPTR to the next position where to check for faces in
6424 STRING; -1 if the face is constant from POS to the end of the
6427 Value is the id of the face to use. The face returned is suitable
6428 for displaying ASCII characters. */
6431 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6432 region_end
, endptr
, base_face_id
)
6436 int region_beg
, region_end
;
6438 enum face_id base_face_id
;
6440 Lisp_Object prop
, position
, end
, limit
;
6441 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6442 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6443 struct face
*base_face
;
6444 int multibyte_p
= STRING_MULTIBYTE (string
);
6446 /* Get the value of the face property at the current position within
6447 STRING. Value is nil if there is no face property. */
6448 XSETFASTINT (position
, pos
);
6449 prop
= Fget_text_property (position
, Qface
, string
);
6451 /* Get the next position at which to check for faces. Value of end
6452 is nil if face is constant all the way to the end of the string.
6453 Otherwise it is a string position where to check faces next.
6454 Limit is the maximum position up to which to check for property
6455 changes in Fnext_single_property_change. Strings are usually
6456 short, so set the limit to the end of the string. */
6457 XSETFASTINT (limit
, XSTRING (string
)->size
);
6458 end
= Fnext_single_property_change (position
, Qface
, string
, limit
);
6460 *endptr
= XFASTINT (end
);
6464 base_face
= FACE_FROM_ID (f
, base_face_id
);
6465 xassert (base_face
);
6467 /* Optimize the default case that there is no face property and we
6468 are not in the region. */
6470 && (base_face_id
!= DEFAULT_FACE_ID
6471 /* BUFPOS <= 0 means STRING is not an overlay string, so
6472 that the region doesn't have to be taken into account. */
6474 || bufpos
< region_beg
6475 || bufpos
>= region_end
)
6477 /* We can't realize faces for different charsets differently
6478 if we don't have fonts, so we can stop here if not working
6479 on a window-system frame. */
6480 || !FRAME_WINDOW_P (f
)
6481 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6482 return base_face
->id
;
6484 /* Begin with attributes from the base face. */
6485 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6487 /* Merge in attributes specified via text properties. */
6489 merge_face_vector_with_property (f
, attrs
, prop
);
6491 /* If in the region, merge in the region face. */
6493 && bufpos
>= region_beg
6494 && bufpos
< region_end
)
6496 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6497 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6500 /* Look up a realized face with the given face attributes,
6501 or realize a new one for ASCII characters. */
6502 return lookup_face (f
, attrs
, 0, NULL
);
6507 /***********************************************************************
6509 ***********************************************************************/
6513 /* Print the contents of the realized face FACE to stderr. */
6516 dump_realized_face (face
)
6519 fprintf (stderr
, "ID: %d\n", face
->id
);
6520 #ifdef HAVE_X_WINDOWS
6521 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6523 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6525 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
6526 fprintf (stderr
, "background: 0x%lx (%s)\n",
6528 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
6529 fprintf (stderr
, "font_name: %s (%s)\n",
6531 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
6532 #ifdef HAVE_X_WINDOWS
6533 fprintf (stderr
, "font = %p\n", face
->font
);
6535 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
6536 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6537 fprintf (stderr
, "underline: %d (%s)\n",
6539 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
6540 fprintf (stderr
, "hash: %d\n", face
->hash
);
6541 fprintf (stderr
, "charset: %d\n", face
->charset
);
6545 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
6553 fprintf (stderr
, "font selection order: ");
6554 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6555 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6556 fprintf (stderr
, "\n");
6558 fprintf (stderr
, "alternative fonts: ");
6559 debug_print (Vface_alternative_font_family_alist
);
6560 fprintf (stderr
, "\n");
6562 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6563 Fdump_face (make_number (i
));
6568 CHECK_NUMBER (n
, 0);
6569 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6571 error ("Not a valid face");
6572 dump_realized_face (face
);
6579 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6583 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6584 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6585 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6589 #endif /* GLYPH_DEBUG != 0 */
6593 /***********************************************************************
6595 ***********************************************************************/
6600 Qface
= intern ("face");
6602 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6603 staticpro (&Qbitmap_spec_p
);
6604 Qframe_update_face_colors
= intern ("frame-update-face-colors");
6605 staticpro (&Qframe_update_face_colors
);
6607 /* Lisp face attribute keywords. */
6608 QCfamily
= intern (":family");
6609 staticpro (&QCfamily
);
6610 QCheight
= intern (":height");
6611 staticpro (&QCheight
);
6612 QCweight
= intern (":weight");
6613 staticpro (&QCweight
);
6614 QCslant
= intern (":slant");
6615 staticpro (&QCslant
);
6616 QCunderline
= intern (":underline");
6617 staticpro (&QCunderline
);
6618 QCinverse_video
= intern (":inverse-video");
6619 staticpro (&QCinverse_video
);
6620 QCreverse_video
= intern (":reverse-video");
6621 staticpro (&QCreverse_video
);
6622 QCforeground
= intern (":foreground");
6623 staticpro (&QCforeground
);
6624 QCbackground
= intern (":background");
6625 staticpro (&QCbackground
);
6626 QCstipple
= intern (":stipple");;
6627 staticpro (&QCstipple
);
6628 QCwidth
= intern (":width");
6629 staticpro (&QCwidth
);
6630 QCfont
= intern (":font");
6631 staticpro (&QCfont
);
6632 QCbold
= intern (":bold");
6633 staticpro (&QCbold
);
6634 QCitalic
= intern (":italic");
6635 staticpro (&QCitalic
);
6636 QCoverline
= intern (":overline");
6637 staticpro (&QCoverline
);
6638 QCstrike_through
= intern (":strike-through");
6639 staticpro (&QCstrike_through
);
6640 QCbox
= intern (":box");
6643 /* Symbols used for Lisp face attribute values. */
6644 QCcolor
= intern (":color");
6645 staticpro (&QCcolor
);
6646 QCline_width
= intern (":line-width");
6647 staticpro (&QCline_width
);
6648 QCstyle
= intern (":style");
6649 staticpro (&QCstyle
);
6650 Qreleased_button
= intern ("released-button");
6651 staticpro (&Qreleased_button
);
6652 Qpressed_button
= intern ("pressed-button");
6653 staticpro (&Qpressed_button
);
6654 Qnormal
= intern ("normal");
6655 staticpro (&Qnormal
);
6656 Qultra_light
= intern ("ultra-light");
6657 staticpro (&Qultra_light
);
6658 Qextra_light
= intern ("extra-light");
6659 staticpro (&Qextra_light
);
6660 Qlight
= intern ("light");
6661 staticpro (&Qlight
);
6662 Qsemi_light
= intern ("semi-light");
6663 staticpro (&Qsemi_light
);
6664 Qsemi_bold
= intern ("semi-bold");
6665 staticpro (&Qsemi_bold
);
6666 Qbold
= intern ("bold");
6668 Qextra_bold
= intern ("extra-bold");
6669 staticpro (&Qextra_bold
);
6670 Qultra_bold
= intern ("ultra-bold");
6671 staticpro (&Qultra_bold
);
6672 Qoblique
= intern ("oblique");
6673 staticpro (&Qoblique
);
6674 Qitalic
= intern ("italic");
6675 staticpro (&Qitalic
);
6676 Qreverse_oblique
= intern ("reverse-oblique");
6677 staticpro (&Qreverse_oblique
);
6678 Qreverse_italic
= intern ("reverse-italic");
6679 staticpro (&Qreverse_italic
);
6680 Qultra_condensed
= intern ("ultra-condensed");
6681 staticpro (&Qultra_condensed
);
6682 Qextra_condensed
= intern ("extra-condensed");
6683 staticpro (&Qextra_condensed
);
6684 Qcondensed
= intern ("condensed");
6685 staticpro (&Qcondensed
);
6686 Qsemi_condensed
= intern ("semi-condensed");
6687 staticpro (&Qsemi_condensed
);
6688 Qsemi_expanded
= intern ("semi-expanded");
6689 staticpro (&Qsemi_expanded
);
6690 Qexpanded
= intern ("expanded");
6691 staticpro (&Qexpanded
);
6692 Qextra_expanded
= intern ("extra-expanded");
6693 staticpro (&Qextra_expanded
);
6694 Qultra_expanded
= intern ("ultra-expanded");
6695 staticpro (&Qultra_expanded
);
6696 Qbackground_color
= intern ("background-color");
6697 staticpro (&Qbackground_color
);
6698 Qforeground_color
= intern ("foreground-color");
6699 staticpro (&Qforeground_color
);
6700 Qunspecified
= intern ("unspecified");
6701 staticpro (&Qunspecified
);
6703 Qface_alias
= intern ("face-alias");
6704 staticpro (&Qface_alias
);
6705 Qdefault
= intern ("default");
6706 staticpro (&Qdefault
);
6707 Qtool_bar
= intern ("tool-bar");
6708 staticpro (&Qtool_bar
);
6709 Qregion
= intern ("region");
6710 staticpro (&Qregion
);
6711 Qfringe
= intern ("fringe");
6712 staticpro (&Qfringe
);
6713 Qheader_line
= intern ("header-line");
6714 staticpro (&Qheader_line
);
6715 Qscroll_bar
= intern ("scroll-bar");
6716 staticpro (&Qscroll_bar
);
6717 Qmenu
= intern ("menu");
6719 Qcursor
= intern ("cursor");
6720 staticpro (&Qcursor
);
6721 Qborder
= intern ("border");
6722 staticpro (&Qborder
);
6723 Qmouse
= intern ("mouse");
6724 staticpro (&Qmouse
);
6725 Qtty_color_desc
= intern ("tty-color-desc");
6726 staticpro (&Qtty_color_desc
);
6727 Qtty_color_by_index
= intern ("tty-color-by-index");
6728 staticpro (&Qtty_color_by_index
);
6730 defsubr (&Sinternal_make_lisp_face
);
6731 defsubr (&Sinternal_lisp_face_p
);
6732 defsubr (&Sinternal_set_lisp_face_attribute
);
6733 #ifdef HAVE_WINDOW_SYSTEM
6734 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6736 defsubr (&Scolor_gray_p
);
6737 defsubr (&Scolor_supported_p
);
6738 defsubr (&Sinternal_get_lisp_face_attribute
);
6739 defsubr (&Sinternal_lisp_face_attribute_values
);
6740 defsubr (&Sinternal_lisp_face_equal_p
);
6741 defsubr (&Sinternal_lisp_face_empty_p
);
6742 defsubr (&Sinternal_copy_lisp_face
);
6743 defsubr (&Sinternal_merge_in_global_face
);
6744 defsubr (&Sface_font
);
6745 defsubr (&Sframe_face_alist
);
6746 defsubr (&Sinternal_set_font_selection_order
);
6747 defsubr (&Sinternal_set_alternative_font_family_alist
);
6749 defsubr (&Sdump_face
);
6750 defsubr (&Sshow_face_resources
);
6751 #endif /* GLYPH_DEBUG */
6752 defsubr (&Sclear_face_cache
);
6753 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6755 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6756 defsubr (&Sdump_colors
);
6759 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6760 "*Limit for font matching.\n\
6761 If an integer > 0, font matching functions won't load more than\n\
6762 that number of fonts when searching for a matching font.");
6763 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6765 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6766 "List of global face definitions (for internal use only.)");
6767 Vface_new_frame_defaults
= Qnil
;
6769 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6770 "*Default stipple pattern used on monochrome displays.\n\
6771 This stipple pattern is used on monochrome displays\n\
6772 instead of shades of gray for a face background color.\n\
6773 See `set-face-stipple' for possible values for this variable.");
6774 Vface_default_stipple
= build_string ("gray3");
6776 DEFVAR_LISP ("face-alternative-font-family-alist",
6777 &Vface_alternative_font_family_alist
, "");
6778 Vface_alternative_font_family_alist
= Qnil
;
6782 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6783 "Allowed scalable fonts.\n\
6784 A value of nil means don't allow any scalable fonts.\n\
6785 A value of t means allow any scalable font.\n\
6786 Otherwise, value must be a list of regular expressions. A font may be\n\
6787 scaled if its name matches a regular expression in the list.");
6789 /* Windows uses mainly truetype fonts, so disallowing scalable fonts
6790 by default limits the fonts available severely. */
6791 Vscalable_fonts_allowed
= Qt
;
6793 Vscalable_fonts_allowed
= Qnil
;
6795 #endif /* SCALABLE_FONTS */
6797 #ifdef HAVE_WINDOW_SYSTEM
6798 defsubr (&Sbitmap_spec_p
);
6799 defsubr (&Sx_list_fonts
);
6800 defsubr (&Sinternal_face_x_get_resource
);
6801 defsubr (&Sx_family_fonts
);
6802 defsubr (&Sx_font_family_list
);
6803 #endif /* HAVE_WINDOW_SYSTEM */