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_WINDOW_SYSTEM
199 #ifdef HAVE_X_WINDOWS
203 #include <Xm/XmStrDefs.h>
204 #endif /* USE_MOTIF */
214 /* Redefine X specifics to W32 equivalents to avoid cluttering the
215 code with #ifdef blocks. */
216 #define FRAME_X_DISPLAY_INFO FRAME_W32_DISPLAY_INFO
217 #define x_display_info w32_display_info
218 #define FRAME_X_FONT_TABLE FRAME_W32_FONT_TABLE
219 #define check_x check_w32
220 #define x_list_fonts w32_list_fonts
221 #define GCGraphicsExposures 0
222 /* For historic reasons, FONT_WIDTH refers to average width on W32,
223 not maximum as on X. Redefine here. */
224 #define FONT_WIDTH FONT_MAX_WIDTH
228 #include "dispextern.h"
229 #include "blockinput.h"
231 #include "intervals.h"
233 #ifdef HAVE_X_WINDOWS
235 /* Compensate for a bug in Xos.h on some systems, on which it requires
236 time.h. On some such systems, Xos.h tries to redefine struct
237 timeval and struct timezone if USG is #defined while it is
240 #ifdef XOS_NEEDS_TIME_H
246 #else /* not XOS_NEEDS_TIME_H */
248 #endif /* not XOS_NEEDS_TIME_H */
250 #endif /* HAVE_X_WINDOWS */
254 #include "keyboard.h"
257 #define max(A, B) ((A) > (B) ? (A) : (B))
258 #define min(A, B) ((A) < (B) ? (A) : (B))
259 #define abs(X) ((X) < 0 ? -(X) : (X))
262 /* Non-zero if face attribute ATTR is unspecified. */
264 #define UNSPECIFIEDP(ATTR) EQ ((ATTR), Qunspecified)
266 /* Value is the number of elements of VECTOR. */
268 #define DIM(VECTOR) (sizeof (VECTOR) / sizeof *(VECTOR))
270 /* Make a copy of string S on the stack using alloca. Value is a pointer
273 #define STRDUPA(S) strcpy ((char *) alloca (strlen ((S)) + 1), (S))
275 /* Make a copy of the contents of Lisp string S on the stack using
276 alloca. Value is a pointer to the copy. */
278 #define LSTRDUPA(S) STRDUPA (XSTRING ((S))->data)
280 /* Size of hash table of realized faces in face caches (should be a
283 #define FACE_CACHE_BUCKETS_SIZE 1001
285 /* A definition of XColor for non-X frames. */
286 #ifndef HAVE_X_WINDOWS
289 unsigned short red
, green
, blue
;
295 /* Keyword symbols used for face attribute names. */
297 Lisp_Object QCfamily
, QCheight
, QCweight
, QCslant
, QCunderline
;
298 Lisp_Object QCinverse_video
, QCforeground
, QCbackground
, QCstipple
;
299 Lisp_Object QCwidth
, QCfont
, QCbold
, QCitalic
;
300 Lisp_Object QCreverse_video
;
301 Lisp_Object QCoverline
, QCstrike_through
, QCbox
;
303 /* Symbols used for attribute values. */
305 Lisp_Object Qnormal
, Qbold
, Qultra_light
, Qextra_light
, Qlight
;
306 Lisp_Object Qsemi_light
, Qsemi_bold
, Qextra_bold
, Qultra_bold
;
307 Lisp_Object Qoblique
, Qitalic
, Qreverse_oblique
, Qreverse_italic
;
308 Lisp_Object Qultra_condensed
, Qextra_condensed
, Qcondensed
;
309 Lisp_Object Qsemi_condensed
, Qsemi_expanded
, Qexpanded
, Qextra_expanded
;
310 Lisp_Object Qultra_expanded
;
311 Lisp_Object Qreleased_button
, Qpressed_button
;
312 Lisp_Object QCstyle
, QCcolor
, QCline_width
;
313 Lisp_Object Qunspecified
;
315 char unspecified_fg
[] = "unspecified-fg", unspecified_bg
[] = "unspecified-bg";
317 /* The name of the function to call when the background of the frame
318 has changed, frame_update_face_colors. */
320 Lisp_Object Qframe_update_face_colors
;
322 /* Names of basic faces. */
324 Lisp_Object Qdefault
, Qtool_bar
, Qregion
, Qfringe
;
325 Lisp_Object Qheader_line
, Qscroll_bar
, Qcursor
, Qborder
, Qmouse
, Qmenu
;
326 extern Lisp_Object Qmode_line
;
328 /* The symbol `face-alias'. A symbols having that property is an
329 alias for another face. Value of the property is the name of
332 Lisp_Object Qface_alias
;
334 /* Names of frame parameters related to faces. */
336 extern Lisp_Object Qscroll_bar_foreground
, Qscroll_bar_background
;
337 extern Lisp_Object Qborder_color
, Qcursor_color
, Qmouse_color
;
339 /* Default stipple pattern used on monochrome displays. This stipple
340 pattern is used on monochrome displays instead of shades of gray
341 for a face background color. See `set-face-stipple' for possible
342 values for this variable. */
344 Lisp_Object Vface_default_stipple
;
346 /* Alist of alternative font families. Each element is of the form
347 (FAMILY FAMILY1 FAMILY2 ...). If fonts of FAMILY can't be loaded,
348 try FAMILY1, then FAMILY2, ... */
350 Lisp_Object Vface_alternative_font_family_alist
;
352 /* Allowed scalable fonts. A value of nil means don't allow any
353 scalable fonts. A value of t means allow the use of any scalable
354 font. Otherwise, value must be a list of regular expressions. A
355 font may be scaled if its name matches a regular expression in the
359 Lisp_Object Vscalable_fonts_allowed
;
362 /* Maximum number of fonts to consider in font_list. If not an
363 integer > 0, DEFAULT_FONT_LIST_LIMIT is used instead. */
365 Lisp_Object Vfont_list_limit
;
366 #define DEFAULT_FONT_LIST_LIMIT 100
368 /* The symbols `foreground-color' and `background-color' which can be
369 used as part of a `face' property. This is for compatibility with
372 Lisp_Object Qforeground_color
, Qbackground_color
;
374 /* The symbols `face' and `mouse-face' used as text properties. */
377 extern Lisp_Object Qmouse_face
;
379 /* Error symbol for wrong_type_argument in load_pixmap. */
381 Lisp_Object Qbitmap_spec_p
;
383 /* Alist of global face definitions. Each element is of the form
384 (FACE . LFACE) where FACE is a symbol naming a face and LFACE
385 is a Lisp vector of face attributes. These faces are used
386 to initialize faces for new frames. */
388 Lisp_Object Vface_new_frame_defaults
;
390 /* The next ID to assign to Lisp faces. */
392 static int next_lface_id
;
394 /* A vector mapping Lisp face Id's to face names. */
396 static Lisp_Object
*lface_id_to_name
;
397 static int lface_id_to_name_size
;
399 /* tty color-related functions (defined on lisp/term/tty-colors.el). */
400 Lisp_Object Qtty_color_desc
, Qtty_color_by_index
;
402 /* Counter for calls to clear_face_cache. If this counter reaches
403 CLEAR_FONT_TABLE_COUNT, and a frame has more than
404 CLEAR_FONT_TABLE_NFONTS load, unused fonts are freed. */
406 static int clear_font_table_count
;
407 #define CLEAR_FONT_TABLE_COUNT 100
408 #define CLEAR_FONT_TABLE_NFONTS 10
410 /* Non-zero means face attributes have been changed since the last
411 redisplay. Used in redisplay_internal. */
413 int face_change_count
;
415 /* Non-zero means don't display bold text if a face's foreground
416 and background colors are the inverse of the default colors of the
417 display. This is a kluge to suppress `bold black' foreground text
418 which is hard to read on an LCD monitor. */
420 int tty_suppress_bold_inverse_default_colors_p
;
422 /* The total number of colors currently allocated. */
425 static int ncolors_allocated
;
426 static int npixmaps_allocated
;
432 /* Function prototypes. */
437 static Lisp_Object resolve_face_name
P_ ((Lisp_Object
));
438 static int may_use_scalable_font_p
P_ ((struct font_name
*, char *));
439 static void set_font_frame_param
P_ ((Lisp_Object
, Lisp_Object
));
440 static int better_font_p
P_ ((int *, struct font_name
*, struct font_name
*,
442 static int first_font_matching
P_ ((struct frame
*f
, char *,
443 struct font_name
*));
444 static int x_face_list_fonts
P_ ((struct frame
*, char *,
445 struct font_name
*, int, int, int));
446 static int font_scalable_p
P_ ((struct font_name
*));
447 static int get_lface_attributes
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
*, int));
448 static int load_pixmap
P_ ((struct frame
*, Lisp_Object
, unsigned *, unsigned *));
449 static unsigned char *xstrlwr
P_ ((unsigned char *));
450 static void signal_error
P_ ((char *, Lisp_Object
));
451 static struct frame
*frame_or_selected_frame
P_ ((Lisp_Object
, int));
452 static void load_face_font
P_ ((struct frame
*, struct face
*, int));
453 static void load_face_colors
P_ ((struct frame
*, struct face
*, Lisp_Object
*));
454 static void free_face_colors
P_ ((struct frame
*, struct face
*));
455 static int face_color_gray_p
P_ ((struct frame
*, char *));
456 static char *build_font_name
P_ ((struct font_name
*));
457 static void free_font_names
P_ ((struct font_name
*, int));
458 static int sorted_font_list
P_ ((struct frame
*, char *,
459 int (*cmpfn
) P_ ((const void *, const void *)),
460 struct font_name
**));
461 static int font_list
P_ ((struct frame
*, Lisp_Object
, Lisp_Object
,
462 Lisp_Object
, struct font_name
**));
463 static int try_font_list
P_ ((struct frame
*, Lisp_Object
*, Lisp_Object
,
464 Lisp_Object
, Lisp_Object
, struct font_name
**));
465 static int cmp_font_names
P_ ((const void *, const void *));
466 static struct face
*realize_face
P_ ((struct face_cache
*, Lisp_Object
*, int,
467 struct face
*, int));
468 static struct face
*realize_x_face
P_ ((struct face_cache
*,
469 Lisp_Object
*, int, struct face
*));
470 static struct face
*realize_tty_face
P_ ((struct face_cache
*,
471 Lisp_Object
*, int));
472 static int realize_basic_faces
P_ ((struct frame
*));
473 static int realize_default_face
P_ ((struct frame
*));
474 static void realize_named_face
P_ ((struct frame
*, Lisp_Object
, int));
475 static int lface_fully_specified_p
P_ ((Lisp_Object
*));
476 static int lface_equal_p
P_ ((Lisp_Object
*, Lisp_Object
*));
477 static unsigned hash_string_case_insensitive
P_ ((Lisp_Object
));
478 static unsigned lface_hash
P_ ((Lisp_Object
*));
479 static int lface_same_font_attributes_p
P_ ((Lisp_Object
*, Lisp_Object
*));
480 static struct face_cache
*make_face_cache
P_ ((struct frame
*));
481 static void free_realized_face
P_ ((struct frame
*, struct face
*));
482 static void clear_face_gcs
P_ ((struct face_cache
*));
483 static void free_face_cache
P_ ((struct face_cache
*));
484 static int face_numeric_weight
P_ ((Lisp_Object
));
485 static int face_numeric_slant
P_ ((Lisp_Object
));
486 static int face_numeric_swidth
P_ ((Lisp_Object
));
487 static int face_fontset
P_ ((Lisp_Object
*));
488 static char *choose_face_font
P_ ((struct frame
*, Lisp_Object
*, int, int));
489 static void merge_face_vectors
P_ ((Lisp_Object
*from
, Lisp_Object
*));
490 static void merge_face_vector_with_property
P_ ((struct frame
*, Lisp_Object
*,
492 static int set_lface_from_font_name
P_ ((struct frame
*, Lisp_Object
,
493 Lisp_Object
, int, int));
494 static Lisp_Object lface_from_face_name
P_ ((struct frame
*, Lisp_Object
, int));
495 static struct face
*make_realized_face
P_ ((Lisp_Object
*));
496 static void free_realized_faces
P_ ((struct face_cache
*));
497 static char *best_matching_font
P_ ((struct frame
*, Lisp_Object
*,
498 struct font_name
*, int));
499 static void cache_face
P_ ((struct face_cache
*, struct face
*, unsigned));
500 static void uncache_face
P_ ((struct face_cache
*, struct face
*));
501 static int xlfd_numeric_slant
P_ ((struct font_name
*));
502 static int xlfd_numeric_weight
P_ ((struct font_name
*));
503 static int xlfd_numeric_swidth
P_ ((struct font_name
*));
504 static Lisp_Object xlfd_symbolic_slant
P_ ((struct font_name
*));
505 static Lisp_Object xlfd_symbolic_weight
P_ ((struct font_name
*));
506 static Lisp_Object xlfd_symbolic_swidth
P_ ((struct font_name
*));
507 static int xlfd_fixed_p
P_ ((struct font_name
*));
508 static int xlfd_numeric_value
P_ ((struct table_entry
*, int, struct font_name
*,
510 static Lisp_Object xlfd_symbolic_value
P_ ((struct table_entry
*, int,
511 struct font_name
*, int,
513 static struct table_entry
*xlfd_lookup_field_contents
P_ ((struct table_entry
*, int,
514 struct font_name
*, int));
516 #ifdef HAVE_WINDOW_SYSTEM
518 static int split_font_name
P_ ((struct frame
*, struct font_name
*, int));
519 static int xlfd_point_size
P_ ((struct frame
*, struct font_name
*));
520 static void sort_fonts
P_ ((struct frame
*, struct font_name
*, int,
521 int (*cmpfn
) P_ ((const void *, const void *))));
522 static GC x_create_gc
P_ ((struct frame
*, unsigned long, XGCValues
*));
523 static void x_free_gc
P_ ((struct frame
*, GC
));
524 static void clear_font_table
P_ ((struct frame
*));
527 extern Lisp_Object w32_list_fonts
P_ ((struct frame
*, Lisp_Object
, int, int));
528 #endif /* WINDOWSNT */
530 #endif /* HAVE_WINDOW_SYSTEM */
533 /***********************************************************************
535 ***********************************************************************/
537 #ifdef HAVE_X_WINDOWS
539 #ifdef DEBUG_X_COLORS
541 /* The following is a poor mans infrastructure for debugging X color
542 allocation problems on displays with PseudoColor-8. Some X servers
543 like 3.3.5 XF86_SVGA with Matrox cards apparently don't implement
544 color reference counts completely so that they don't signal an
545 error when a color is freed whose reference count is already 0.
546 Other X servers do. To help me debug this, the following code
547 implements a simple reference counting schema of its own, for a
548 single display/screen. --gerd. */
550 /* Reference counts for pixel colors. */
552 int color_count
[256];
554 /* Register color PIXEL as allocated. */
557 register_color (pixel
)
560 xassert (pixel
< 256);
561 ++color_count
[pixel
];
565 /* Register color PIXEL as deallocated. */
568 unregister_color (pixel
)
571 xassert (pixel
< 256);
572 if (color_count
[pixel
] > 0)
573 --color_count
[pixel
];
579 /* Register N colors from PIXELS as deallocated. */
582 unregister_colors (pixels
, n
)
583 unsigned long *pixels
;
587 for (i
= 0; i
< n
; ++i
)
588 unregister_color (pixels
[i
]);
592 DEFUN ("dump-colors", Fdump_colors
, Sdump_colors
, 0, 0, 0,
593 "Dump currently allocated colors and their reference counts to stderr.")
598 fputc ('\n', stderr
);
600 for (i
= n
= 0; i
< sizeof color_count
/ sizeof color_count
[0]; ++i
)
603 fprintf (stderr
, "%3d: %5d", i
, color_count
[i
]);
606 fputc ('\n', stderr
);
608 fputc ('\t', stderr
);
612 fputc ('\n', stderr
);
617 #endif /* DEBUG_X_COLORS */
619 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
620 color values. Interrupt input must be blocked when this function
624 x_free_colors (f
, pixels
, npixels
)
626 unsigned long *pixels
;
629 int class = FRAME_X_DISPLAY_INFO (f
)->visual
->class;
631 /* If display has an immutable color map, freeing colors is not
632 necessary and some servers don't allow it. So don't do it. */
633 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
635 XFreeColors (FRAME_X_DISPLAY (f
), FRAME_X_COLORMAP (f
),
637 #ifdef DEBUG_X_COLORS
638 unregister_colors (pixels
, npixels
);
644 /* Free colors used on frame F. PIXELS is an array of NPIXELS pixel
645 color values. Interrupt input must be blocked when this function
649 x_free_dpy_colors (dpy
, screen
, cmap
, pixels
, npixels
)
653 unsigned long *pixels
;
656 struct x_display_info
*dpyinfo
= x_display_info_for_display (dpy
);
657 int class = dpyinfo
->visual
->class;
659 /* If display has an immutable color map, freeing colors is not
660 necessary and some servers don't allow it. So don't do it. */
661 if (class != StaticColor
&& class != StaticGray
&& class != TrueColor
)
663 XFreeColors (dpy
, cmap
, pixels
, npixels
, 0);
664 #ifdef DEBUG_X_COLORS
665 unregister_colors (pixels
, npixels
);
671 /* Create and return a GC for use on frame F. GC values and mask
672 are given by XGCV and MASK. */
675 x_create_gc (f
, mask
, xgcv
)
682 gc
= XCreateGC (FRAME_X_DISPLAY (f
), FRAME_X_WINDOW (f
), mask
, xgcv
);
689 /* Free GC which was used on frame F. */
697 xassert (--ngcs
>= 0);
698 XFreeGC (FRAME_X_DISPLAY (f
), gc
);
702 #endif /* HAVE_X_WINDOWS */
705 /* W32 emulation of GCs */
708 x_create_gc (f
, mask
, xgcv
)
715 gc
= XCreateGC (NULL
, FRAME_W32_WINDOW (f
), mask
, xgcv
);
722 /* Free GC which was used on frame F. */
730 xassert (--ngcs
>= 0);
735 #endif /* WINDOWSNT */
737 /* Like stricmp. Used to compare parts of font names which are in
742 unsigned char *s1
, *s2
;
746 unsigned char c1
= tolower (*s1
);
747 unsigned char c2
= tolower (*s2
);
749 return c1
< c2
? -1 : 1;
754 return *s2
== 0 ? 0 : -1;
759 /* Like strlwr, which might not always be available. */
761 static unsigned char *
765 unsigned char *p
= s
;
774 /* Signal `error' with message S, and additional argument ARG. */
777 signal_error (s
, arg
)
781 Fsignal (Qerror
, Fcons (build_string (s
), Fcons (arg
, Qnil
)));
785 /* If FRAME is nil, return a pointer to the selected frame.
786 Otherwise, check that FRAME is a live frame, and return a pointer
787 to it. NPARAM is the parameter number of FRAME, for
788 CHECK_LIVE_FRAME. This is here because it's a frequent pattern in
789 Lisp function definitions. */
791 static INLINE
struct frame
*
792 frame_or_selected_frame (frame
, nparam
)
797 frame
= selected_frame
;
799 CHECK_LIVE_FRAME (frame
, nparam
);
800 return XFRAME (frame
);
804 /***********************************************************************
806 ***********************************************************************/
808 /* Initialize face cache and basic faces for frame F. */
814 /* Make a face cache, if F doesn't have one. */
815 if (FRAME_FACE_CACHE (f
) == NULL
)
816 FRAME_FACE_CACHE (f
) = make_face_cache (f
);
818 #ifdef HAVE_WINDOW_SYSTEM
819 /* Make the image cache. */
820 if (FRAME_WINDOW_P (f
))
822 if (FRAME_X_IMAGE_CACHE (f
) == NULL
)
823 FRAME_X_IMAGE_CACHE (f
) = make_image_cache ();
824 ++FRAME_X_IMAGE_CACHE (f
)->refcount
;
826 #endif /* HAVE_WINDOW_SYSTEM */
828 /* Realize basic faces. Must have enough information in frame
829 parameters to realize basic faces at this point. */
830 #ifdef HAVE_X_WINDOWS
831 if (!FRAME_X_P (f
) || FRAME_X_WINDOW (f
))
834 if (!FRAME_WINDOW_P (f
) || FRAME_W32_WINDOW (f
))
836 if (!realize_basic_faces (f
))
841 /* Free face cache of frame F. Called from Fdelete_frame. */
847 struct face_cache
*face_cache
= FRAME_FACE_CACHE (f
);
851 free_face_cache (face_cache
);
852 FRAME_FACE_CACHE (f
) = NULL
;
855 #ifdef HAVE_WINDOW_SYSTEM
856 if (FRAME_WINDOW_P (f
))
858 struct image_cache
*image_cache
= FRAME_X_IMAGE_CACHE (f
);
861 --image_cache
->refcount
;
862 if (image_cache
->refcount
== 0)
863 free_image_cache (f
);
866 #endif /* HAVE_WINDOW_SYSTEM */
870 /* Clear face caches, and recompute basic faces for frame F. Call
871 this after changing frame parameters on which those faces depend,
872 or when realized faces have been freed due to changing attributes
876 recompute_basic_faces (f
)
879 if (FRAME_FACE_CACHE (f
))
881 clear_face_cache (0);
882 if (!realize_basic_faces (f
))
888 /* Clear the face caches of all frames. CLEAR_FONTS_P non-zero means
889 try to free unused fonts, too. */
892 clear_face_cache (clear_fonts_p
)
895 #ifdef HAVE_WINDOW_SYSTEM
896 Lisp_Object tail
, frame
;
900 || ++clear_font_table_count
== CLEAR_FONT_TABLE_COUNT
)
902 /* From time to time see if we can unload some fonts. This also
903 frees all realized faces on all frames. Fonts needed by
904 faces will be loaded again when faces are realized again. */
905 clear_font_table_count
= 0;
907 FOR_EACH_FRAME (tail
, frame
)
910 if (FRAME_WINDOW_P (f
)
911 && FRAME_X_DISPLAY_INFO (f
)->n_fonts
> CLEAR_FONT_TABLE_NFONTS
)
913 free_all_realized_faces (frame
);
914 clear_font_table (f
);
920 /* Clear GCs of realized faces. */
921 FOR_EACH_FRAME (tail
, frame
)
924 if (FRAME_WINDOW_P (f
))
926 clear_face_gcs (FRAME_FACE_CACHE (f
));
927 clear_image_cache (f
, 0);
931 #endif /* HAVE_WINDOW_SYSTEM */
935 DEFUN ("clear-face-cache", Fclear_face_cache
, Sclear_face_cache
, 0, 1, 0,
936 "Clear face caches on all frames.\n\
937 Optional THOROUGHLY non-nil means try to free unused fonts, too.")
939 Lisp_Object thorougly
;
941 clear_face_cache (!NILP (thorougly
));
947 #ifdef HAVE_WINDOW_SYSTEM
950 /* Remove those fonts from the font table of frame F exept for the
951 default ASCII font for the frame. Called from clear_face_cache
952 from time to time. */
958 struct x_display_info
*dpyinfo
= FRAME_X_DISPLAY_INFO (f
);
961 xassert (FRAME_WINDOW_P (f
));
963 /* Free those fonts that are not used by the frame F as the default. */
964 for (i
= 0; i
< dpyinfo
->n_fonts
; ++i
)
966 struct font_info
*font_info
= dpyinfo
->font_table
+ i
;
969 || font_info
->font
== FRAME_FONT (f
))
973 if (font_info
->full_name
!= font_info
->name
)
974 xfree (font_info
->full_name
);
975 xfree (font_info
->name
);
979 #ifdef HAVE_X_WINDOWS
980 XFreeFont (dpyinfo
->display
, font_info
->font
);
983 w32_unload_font (dpyinfo
, font_info
->font
);
987 /* Mark font table slot free. */
988 font_info
->font
= NULL
;
989 font_info
->name
= font_info
->full_name
= NULL
;
993 #endif /* HAVE_WINDOW_SYSTEM */
997 /***********************************************************************
999 ***********************************************************************/
1001 #ifdef HAVE_WINDOW_SYSTEM
1003 DEFUN ("bitmap-spec-p", Fbitmap_spec_p
, Sbitmap_spec_p
, 1, 1, 0,
1004 "Value is non-nil if OBJECT is a valid bitmap specification.\n\
1005 A bitmap specification is either a string, a file name, or a list\n\
1006 (WIDTH HEIGHT DATA) where WIDTH is the pixel width of the bitmap,\n\
1007 HEIGHT is its height, and DATA is a string containing the bits of\n\
1008 the pixmap. Bits are stored row by row, each row occupies\n\
1009 (WIDTH + 7)/8 bytes.")
1015 if (STRINGP (object
))
1016 /* If OBJECT is a string, it's a file name. */
1018 else if (CONSP (object
))
1020 /* Otherwise OBJECT must be (WIDTH HEIGHT DATA), WIDTH and
1021 HEIGHT must be integers > 0, and DATA must be string large
1022 enough to hold a bitmap of the specified size. */
1023 Lisp_Object width
, height
, data
;
1025 height
= width
= data
= Qnil
;
1029 width
= XCAR (object
);
1030 object
= XCDR (object
);
1033 height
= XCAR (object
);
1034 object
= XCDR (object
);
1036 data
= XCAR (object
);
1040 if (NATNUMP (width
) && NATNUMP (height
) && STRINGP (data
))
1042 int bytes_per_row
= ((XFASTINT (width
) + BITS_PER_CHAR
- 1)
1044 if (STRING_BYTES (XSTRING (data
)) >= bytes_per_row
* XINT (height
))
1049 return pixmap_p
? Qt
: Qnil
;
1053 /* Load a bitmap according to NAME (which is either a file name or a
1054 pixmap spec) for use on frame F. Value is the bitmap_id (see
1055 xfns.c). If NAME is nil, return with a bitmap id of zero. If
1056 bitmap cannot be loaded, display a message saying so, and return
1057 zero. Store the bitmap width in *W_PTR and its height in *H_PTR,
1058 if these pointers are not null. */
1061 load_pixmap (f
, name
, w_ptr
, h_ptr
)
1064 unsigned int *w_ptr
, *h_ptr
;
1072 tem
= Fbitmap_spec_p (name
);
1074 wrong_type_argument (Qbitmap_spec_p
, name
);
1079 /* Decode a bitmap spec into a bitmap. */
1084 w
= XINT (Fcar (name
));
1085 h
= XINT (Fcar (Fcdr (name
)));
1086 bits
= Fcar (Fcdr (Fcdr (name
)));
1088 bitmap_id
= x_create_bitmap_from_data (f
, XSTRING (bits
)->data
,
1093 /* It must be a string -- a file name. */
1094 bitmap_id
= x_create_bitmap_from_file (f
, name
);
1100 add_to_log ("Invalid or undefined bitmap %s", name
, Qnil
);
1111 ++npixmaps_allocated
;
1114 *w_ptr
= x_bitmap_width (f
, bitmap_id
);
1117 *h_ptr
= x_bitmap_height (f
, bitmap_id
);
1123 #endif /* HAVE_WINDOW_SYSTEM */
1127 /***********************************************************************
1129 ***********************************************************************/
1131 #ifdef HAVE_WINDOW_SYSTEM
1133 /* Update the line_height of frame F. Return non-zero if line height
1137 frame_update_line_height (f
)
1140 int line_height
, changed_p
;
1142 line_height
= FONT_HEIGHT (FRAME_FONT (f
));
1143 changed_p
= line_height
!= FRAME_LINE_HEIGHT (f
);
1144 FRAME_LINE_HEIGHT (f
) = line_height
;
1148 #endif /* HAVE_WINDOW_SYSTEM */
1151 /***********************************************************************
1153 ***********************************************************************/
1155 #ifdef HAVE_WINDOW_SYSTEM
1157 /* Load font of face FACE which is used on frame F to display
1158 character C. The name of the font to load is determined by lface
1159 and fontset of FACE. */
1162 load_face_font (f
, face
, c
)
1167 struct font_info
*font_info
= NULL
;
1170 face
->font_info_id
= -1;
1173 font_name
= choose_face_font (f
, face
->lface
, face
->fontset
, c
);
1178 font_info
= FS_LOAD_FACE_FONT (f
, c
, font_name
, face
);
1183 face
->font_info_id
= font_info
->font_idx
;
1184 face
->font
= font_info
->font
;
1185 face
->font_name
= font_info
->full_name
;
1188 x_free_gc (f
, face
->gc
);
1193 add_to_log ("Unable to load font %s",
1194 build_string (font_name
), Qnil
);
1198 #endif /* HAVE_WINDOW_SYSTEM */
1202 /***********************************************************************
1204 ***********************************************************************/
1206 /* A version of defined_color for non-X frames. */
1209 tty_defined_color (f
, color_name
, color_def
, alloc
)
1215 Lisp_Object color_desc
;
1216 unsigned long color_idx
= FACE_TTY_DEFAULT_COLOR
,
1217 red
= 0, green
= 0, blue
= 0;
1220 if (*color_name
&& !NILP (Ffboundp (Qtty_color_desc
)))
1224 XSETFRAME (frame
, f
);
1226 color_desc
= call2 (Qtty_color_desc
, build_string (color_name
), frame
);
1227 if (CONSP (color_desc
) && CONSP (XCDR (color_desc
)))
1229 color_idx
= XINT (XCAR (XCDR (color_desc
)));
1230 if (CONSP (XCDR (XCDR (color_desc
))))
1232 red
= XINT (XCAR (XCDR (XCDR (color_desc
))));
1233 green
= XINT (XCAR (XCDR (XCDR (XCDR (color_desc
)))));
1234 blue
= XINT (XCAR (XCDR (XCDR (XCDR (XCDR (color_desc
))))));
1238 else if (NILP (Fsymbol_value (intern ("tty-defined-color-alist"))))
1239 /* We were called early during startup, and the colors are not
1240 yet set up in tty-defined-color-alist. Don't return a failure
1241 indication, since this produces the annoying "Unable to
1242 load color" messages in the *Messages* buffer. */
1245 if (color_idx
== FACE_TTY_DEFAULT_COLOR
&& *color_name
)
1247 if (strcmp (color_name
, "unspecified-fg") == 0)
1248 color_idx
= FACE_TTY_DEFAULT_FG_COLOR
;
1249 else if (strcmp (color_name
, "unspecified-bg") == 0)
1250 color_idx
= FACE_TTY_DEFAULT_BG_COLOR
;
1253 if (color_idx
!= FACE_TTY_DEFAULT_COLOR
)
1256 color_def
->pixel
= color_idx
;
1257 color_def
->red
= red
;
1258 color_def
->green
= green
;
1259 color_def
->blue
= blue
;
1265 /* Decide if color named COLOR_NAME is valid for the display
1266 associated with the frame F; if so, return the rgb values in
1267 COLOR_DEF. If ALLOC is nonzero, allocate a new colormap cell.
1269 This does the right thing for any type of frame. */
1272 defined_color (f
, color_name
, color_def
, alloc
)
1278 if (!FRAME_WINDOW_P (f
))
1279 return tty_defined_color (f
, color_name
, color_def
, alloc
);
1280 #ifdef HAVE_X_WINDOWS
1281 else if (FRAME_X_P (f
))
1282 return x_defined_color (f
, color_name
, color_def
, alloc
);
1285 else if (FRAME_W32_P (f
))
1286 return w32_defined_color (f
, color_name
, color_def
, alloc
);
1289 else if (FRAME_MAC_P (f
))
1290 /* FIXME: mac_defined_color doesn't exist! */
1291 return mac_defined_color (f
, color_name
, color_def
, alloc
);
1298 /* Given the index IDX of a tty color on frame F, return its name, a
1302 tty_color_name (f
, idx
)
1306 if (idx
>= 0 && !NILP (Ffboundp (Qtty_color_by_index
)))
1309 Lisp_Object coldesc
;
1311 XSETFRAME (frame
, f
);
1312 coldesc
= call2 (Qtty_color_by_index
, make_number (idx
), frame
);
1314 if (!NILP (coldesc
))
1315 return XCAR (coldesc
);
1318 /* We can have an MSDOG frame under -nw for a short window of
1319 opportunity before internal_terminal_init is called. DTRT. */
1320 if (FRAME_MSDOS_P (f
) && !inhibit_window_system
)
1321 return msdos_stdcolor_name (idx
);
1324 if (idx
== FACE_TTY_DEFAULT_FG_COLOR
)
1325 return build_string (unspecified_fg
);
1326 if (idx
== FACE_TTY_DEFAULT_BG_COLOR
)
1327 return build_string (unspecified_bg
);
1330 return vga_stdcolor_name (idx
);
1333 return Qunspecified
;
1337 /* Return non-zero if COLOR_NAME is a shade of gray (or white or
1338 black) on frame F. The algorithm is taken from 20.2 faces.el. */
1341 face_color_gray_p (f
, color_name
)
1348 if (defined_color (f
, color_name
, &color
, 0))
1349 gray_p
= ((abs (color
.red
- color
.green
)
1350 < max (color
.red
, color
.green
) / 20)
1351 && (abs (color
.green
- color
.blue
)
1352 < max (color
.green
, color
.blue
) / 20)
1353 && (abs (color
.blue
- color
.red
)
1354 < max (color
.blue
, color
.red
) / 20));
1362 /* Return non-zero if color COLOR_NAME can be displayed on frame F.
1363 BACKGROUND_P non-zero means the color will be used as background
1367 face_color_supported_p (f
, color_name
, background_p
)
1375 XSETFRAME (frame
, f
);
1376 return (FRAME_WINDOW_P (f
)
1377 ? (!NILP (Fxw_display_color_p (frame
))
1378 || xstricmp (color_name
, "black") == 0
1379 || xstricmp (color_name
, "white") == 0
1381 && face_color_gray_p (f
, color_name
))
1382 || (!NILP (Fx_display_grayscale_p (frame
))
1383 && face_color_gray_p (f
, color_name
)))
1384 : tty_defined_color (f
, color_name
, ¬_used
, 0));
1388 DEFUN ("color-gray-p", Fcolor_gray_p
, Scolor_gray_p
, 1, 2, 0,
1389 "Return non-nil if COLOR is a shade of gray (or white or black).\n\
1390 FRAME specifies the frame and thus the display for interpreting COLOR.\n\
1391 If FRAME is nil or omitted, use the selected frame.")
1393 Lisp_Object color
, frame
;
1397 CHECK_FRAME (frame
, 0);
1398 CHECK_STRING (color
, 0);
1400 return face_color_gray_p (f
, XSTRING (color
)->data
) ? Qt
: Qnil
;
1404 DEFUN ("color-supported-p", Fcolor_supported_p
,
1405 Scolor_supported_p
, 2, 3, 0,
1406 "Return non-nil if COLOR can be displayed on FRAME.\n\
1407 BACKGROUND-P non-nil means COLOR is used as a background.\n\
1408 If FRAME is nil or omitted, use the selected frame.\n\
1409 COLOR must be a valid color name.")
1410 (color
, frame
, background_p
)
1411 Lisp_Object frame
, color
, background_p
;
1415 CHECK_FRAME (frame
, 0);
1416 CHECK_STRING (color
, 0);
1418 if (face_color_supported_p (f
, XSTRING (color
)->data
, !NILP (background_p
)))
1424 /* Load color with name NAME for use by face FACE on frame F.
1425 TARGET_INDEX must be one of LFACE_FOREGROUND_INDEX,
1426 LFACE_BACKGROUND_INDEX, LFACE_UNDERLINE_INDEX, LFACE_OVERLINE_INDEX,
1427 LFACE_STRIKE_THROUGH_INDEX, or LFACE_BOX_INDEX. Value is the
1428 pixel color. If color cannot be loaded, display a message, and
1429 return the foreground, background or underline color of F, but
1430 record that fact in flags of the face so that we don't try to free
1434 load_color (f
, face
, name
, target_index
)
1438 enum lface_attribute_index target_index
;
1442 xassert (STRINGP (name
));
1443 xassert (target_index
== LFACE_FOREGROUND_INDEX
1444 || target_index
== LFACE_BACKGROUND_INDEX
1445 || target_index
== LFACE_UNDERLINE_INDEX
1446 || target_index
== LFACE_OVERLINE_INDEX
1447 || target_index
== LFACE_STRIKE_THROUGH_INDEX
1448 || target_index
== LFACE_BOX_INDEX
);
1450 /* if the color map is full, defined_color will return a best match
1451 to the values in an existing cell. */
1452 if (!defined_color (f
, XSTRING (name
)->data
, &color
, 1))
1454 add_to_log ("Unable to load color \"%s\"", name
, Qnil
);
1456 switch (target_index
)
1458 case LFACE_FOREGROUND_INDEX
:
1459 face
->foreground_defaulted_p
= 1;
1460 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1463 case LFACE_BACKGROUND_INDEX
:
1464 face
->background_defaulted_p
= 1;
1465 color
.pixel
= FRAME_BACKGROUND_PIXEL (f
);
1468 case LFACE_UNDERLINE_INDEX
:
1469 face
->underline_defaulted_p
= 1;
1470 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1473 case LFACE_OVERLINE_INDEX
:
1474 face
->overline_color_defaulted_p
= 1;
1475 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1478 case LFACE_STRIKE_THROUGH_INDEX
:
1479 face
->strike_through_color_defaulted_p
= 1;
1480 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1483 case LFACE_BOX_INDEX
:
1484 face
->box_color_defaulted_p
= 1;
1485 color
.pixel
= FRAME_FOREGROUND_PIXEL (f
);
1494 ++ncolors_allocated
;
1501 #ifdef HAVE_WINDOW_SYSTEM
1503 /* Load colors for face FACE which is used on frame F. Colors are
1504 specified by slots LFACE_BACKGROUND_INDEX and LFACE_FOREGROUND_INDEX
1505 of ATTRS. If the background color specified is not supported on F,
1506 try to emulate gray colors with a stipple from Vface_default_stipple. */
1509 load_face_colors (f
, face
, attrs
)
1516 bg
= attrs
[LFACE_BACKGROUND_INDEX
];
1517 fg
= attrs
[LFACE_FOREGROUND_INDEX
];
1519 /* Swap colors if face is inverse-video. */
1520 if (EQ (attrs
[LFACE_INVERSE_INDEX
], Qt
))
1528 /* Check for support for foreground, not for background because
1529 face_color_supported_p is smart enough to know that grays are
1530 "supported" as background because we are supposed to use stipple
1532 if (!face_color_supported_p (f
, XSTRING (bg
)->data
, 0)
1533 && !NILP (Fbitmap_spec_p (Vface_default_stipple
)))
1535 x_destroy_bitmap (f
, face
->stipple
);
1536 face
->stipple
= load_pixmap (f
, Vface_default_stipple
,
1537 &face
->pixmap_w
, &face
->pixmap_h
);
1540 face
->background
= load_color (f
, face
, bg
, LFACE_BACKGROUND_INDEX
);
1541 face
->foreground
= load_color (f
, face
, fg
, LFACE_FOREGROUND_INDEX
);
1545 /* Free color PIXEL on frame F. */
1548 unload_color (f
, pixel
)
1550 unsigned long pixel
;
1552 #ifdef HAVE_X_WINDOWS
1554 x_free_colors (f
, &pixel
, 1);
1560 /* Free colors allocated for FACE. */
1563 free_face_colors (f
, face
)
1567 #ifdef HAVE_X_WINDOWS
1570 if (!face
->foreground_defaulted_p
)
1572 x_free_colors (f
, &face
->foreground
, 1);
1573 IF_DEBUG (--ncolors_allocated
);
1576 if (!face
->background_defaulted_p
)
1578 x_free_colors (f
, &face
->background
, 1);
1579 IF_DEBUG (--ncolors_allocated
);
1582 if (face
->underline_p
1583 && !face
->underline_defaulted_p
)
1585 x_free_colors (f
, &face
->underline_color
, 1);
1586 IF_DEBUG (--ncolors_allocated
);
1589 if (face
->overline_p
1590 && !face
->overline_color_defaulted_p
)
1592 x_free_colors (f
, &face
->overline_color
, 1);
1593 IF_DEBUG (--ncolors_allocated
);
1596 if (face
->strike_through_p
1597 && !face
->strike_through_color_defaulted_p
)
1599 x_free_colors (f
, &face
->strike_through_color
, 1);
1600 IF_DEBUG (--ncolors_allocated
);
1603 if (face
->box
!= FACE_NO_BOX
1604 && !face
->box_color_defaulted_p
)
1606 x_free_colors (f
, &face
->box_color
, 1);
1607 IF_DEBUG (--ncolors_allocated
);
1611 #endif /* HAVE_X_WINDOWS */
1614 #endif /* HAVE_WINDOW_SYSTEM */
1618 /***********************************************************************
1620 ***********************************************************************/
1622 /* An enumerator for each field of an XLFD font name. */
1643 /* An enumerator for each possible slant value of a font. Taken from
1644 the XLFD specification. */
1652 XLFD_SLANT_REVERSE_ITALIC
,
1653 XLFD_SLANT_REVERSE_OBLIQUE
,
1657 /* Relative font weight according to XLFD documentation. */
1661 XLFD_WEIGHT_UNKNOWN
,
1662 XLFD_WEIGHT_ULTRA_LIGHT
, /* 10 */
1663 XLFD_WEIGHT_EXTRA_LIGHT
, /* 20 */
1664 XLFD_WEIGHT_LIGHT
, /* 30 */
1665 XLFD_WEIGHT_SEMI_LIGHT
, /* 40: SemiLight, Book, ... */
1666 XLFD_WEIGHT_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1667 XLFD_WEIGHT_SEMI_BOLD
, /* 60: SemiBold, DemiBold, ... */
1668 XLFD_WEIGHT_BOLD
, /* 70: Bold, ... */
1669 XLFD_WEIGHT_EXTRA_BOLD
, /* 80: ExtraBold, Heavy, ... */
1670 XLFD_WEIGHT_ULTRA_BOLD
/* 90: UltraBold, Black, ... */
1673 /* Relative proportionate width. */
1677 XLFD_SWIDTH_UNKNOWN
,
1678 XLFD_SWIDTH_ULTRA_CONDENSED
, /* 10 */
1679 XLFD_SWIDTH_EXTRA_CONDENSED
, /* 20 */
1680 XLFD_SWIDTH_CONDENSED
, /* 30: Condensed, Narrow, Compressed, ... */
1681 XLFD_SWIDTH_SEMI_CONDENSED
, /* 40: semicondensed */
1682 XLFD_SWIDTH_MEDIUM
, /* 50: Medium, Normal, Regular, ... */
1683 XLFD_SWIDTH_SEMI_EXPANDED
, /* 60: SemiExpanded, DemiExpanded, ... */
1684 XLFD_SWIDTH_EXPANDED
, /* 70: Expanded... */
1685 XLFD_SWIDTH_EXTRA_EXPANDED
, /* 80: ExtraExpanded, Wide... */
1686 XLFD_SWIDTH_ULTRA_EXPANDED
/* 90: UltraExpanded... */
1689 /* Structure used for tables mapping XLFD weight, slant, and width
1690 names to numeric and symbolic values. */
1696 Lisp_Object
*symbol
;
1699 /* Table of XLFD slant names and their numeric and symbolic
1700 representations. This table must be sorted by slant names in
1703 static struct table_entry slant_table
[] =
1705 {"i", XLFD_SLANT_ITALIC
, &Qitalic
},
1706 {"o", XLFD_SLANT_OBLIQUE
, &Qoblique
},
1707 {"ot", XLFD_SLANT_OTHER
, &Qitalic
},
1708 {"r", XLFD_SLANT_ROMAN
, &Qnormal
},
1709 {"ri", XLFD_SLANT_REVERSE_ITALIC
, &Qreverse_italic
},
1710 {"ro", XLFD_SLANT_REVERSE_OBLIQUE
, &Qreverse_oblique
}
1713 /* Table of XLFD weight names. This table must be sorted by weight
1714 names in ascending order. */
1716 static struct table_entry weight_table
[] =
1718 {"black", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
},
1719 {"bold", XLFD_WEIGHT_BOLD
, &Qbold
},
1720 {"book", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1721 {"demibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1722 {"extralight", XLFD_WEIGHT_EXTRA_LIGHT
, &Qextra_light
},
1723 {"extrabold", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1724 {"heavy", XLFD_WEIGHT_EXTRA_BOLD
, &Qextra_bold
},
1725 {"light", XLFD_WEIGHT_LIGHT
, &Qlight
},
1726 {"medium", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1727 {"normal", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1728 {"regular", XLFD_WEIGHT_MEDIUM
, &Qnormal
},
1729 {"semibold", XLFD_WEIGHT_SEMI_BOLD
, &Qsemi_bold
},
1730 {"semilight", XLFD_WEIGHT_SEMI_LIGHT
, &Qsemi_light
},
1731 {"ultralight", XLFD_WEIGHT_ULTRA_LIGHT
, &Qultra_light
},
1732 {"ultrabold", XLFD_WEIGHT_ULTRA_BOLD
, &Qultra_bold
}
1735 /* Table of XLFD width names. This table must be sorted by width
1736 names in ascending order. */
1738 static struct table_entry swidth_table
[] =
1740 {"compressed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1741 {"condensed", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1742 {"demiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1743 {"expanded", XLFD_SWIDTH_EXPANDED
, &Qexpanded
},
1744 {"extracondensed", XLFD_SWIDTH_EXTRA_CONDENSED
, &Qextra_condensed
},
1745 {"extraexpanded", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
},
1746 {"medium", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1747 {"narrow", XLFD_SWIDTH_CONDENSED
, &Qcondensed
},
1748 {"normal", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1749 {"regular", XLFD_SWIDTH_MEDIUM
, &Qnormal
},
1750 {"semicondensed", XLFD_SWIDTH_SEMI_CONDENSED
, &Qsemi_condensed
},
1751 {"semiexpanded", XLFD_SWIDTH_SEMI_EXPANDED
, &Qsemi_expanded
},
1752 {"ultracondensed", XLFD_SWIDTH_ULTRA_CONDENSED
, &Qultra_condensed
},
1753 {"ultraexpanded", XLFD_SWIDTH_ULTRA_EXPANDED
, &Qultra_expanded
},
1754 {"wide", XLFD_SWIDTH_EXTRA_EXPANDED
, &Qextra_expanded
}
1757 /* Structure used to hold the result of splitting font names in XLFD
1758 format into their fields. */
1762 /* The original name which is modified destructively by
1763 split_font_name. The pointer is kept here to be able to free it
1764 if it was allocated from the heap. */
1767 /* Font name fields. Each vector element points into `name' above.
1768 Fields are NUL-terminated. */
1769 char *fields
[XLFD_LAST
];
1771 /* Numeric values for those fields that interest us. See
1772 split_font_name for which these are. */
1773 int numeric
[XLFD_LAST
];
1776 /* The frame in effect when sorting font names. Set temporarily in
1777 sort_fonts so that it is available in font comparison functions. */
1779 static struct frame
*font_frame
;
1781 /* Order by which font selection chooses fonts. The default values
1782 mean `first, find a best match for the font width, then for the
1783 font height, then for weight, then for slant.' This variable can be
1784 set via set-face-font-sort-order. */
1786 static int font_sort_order
[4];
1789 /* Look up FONT.fields[FIELD_INDEX] in TABLE which has DIM entries.
1790 TABLE must be sorted by TABLE[i]->name in ascending order. Value
1791 is a pointer to the matching table entry or null if no table entry
1794 static struct table_entry
*
1795 xlfd_lookup_field_contents (table
, dim
, font
, field_index
)
1796 struct table_entry
*table
;
1798 struct font_name
*font
;
1801 /* Function split_font_name converts fields to lower-case, so there
1802 is no need to use xstrlwr or xstricmp here. */
1803 char *s
= font
->fields
[field_index
];
1804 int low
, mid
, high
, cmp
;
1811 mid
= (low
+ high
) / 2;
1812 cmp
= strcmp (table
[mid
].name
, s
);
1826 /* Return a numeric representation for font name field
1827 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1828 has DIM entries. Value is the numeric value found or DFLT if no
1829 table entry matches. This function is used to translate weight,
1830 slant, and swidth names of XLFD font names to numeric values. */
1833 xlfd_numeric_value (table
, dim
, font
, field_index
, dflt
)
1834 struct table_entry
*table
;
1836 struct font_name
*font
;
1840 struct table_entry
*p
;
1841 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1842 return p
? p
->numeric
: dflt
;
1846 /* Return a symbolic representation for font name field
1847 FONT.fields[FIELD_INDEX]. The field is looked up in TABLE which
1848 has DIM entries. Value is the symbolic value found or DFLT if no
1849 table entry matches. This function is used to translate weight,
1850 slant, and swidth names of XLFD font names to symbols. */
1852 static INLINE Lisp_Object
1853 xlfd_symbolic_value (table
, dim
, font
, field_index
, dflt
)
1854 struct table_entry
*table
;
1856 struct font_name
*font
;
1860 struct table_entry
*p
;
1861 p
= xlfd_lookup_field_contents (table
, dim
, font
, field_index
);
1862 return p
? *p
->symbol
: dflt
;
1866 /* Return a numeric value for the slant of the font given by FONT. */
1869 xlfd_numeric_slant (font
)
1870 struct font_name
*font
;
1872 return xlfd_numeric_value (slant_table
, DIM (slant_table
),
1873 font
, XLFD_SLANT
, XLFD_SLANT_ROMAN
);
1877 /* Return a symbol representing the weight of the font given by FONT. */
1879 static INLINE Lisp_Object
1880 xlfd_symbolic_slant (font
)
1881 struct font_name
*font
;
1883 return xlfd_symbolic_value (slant_table
, DIM (slant_table
),
1884 font
, XLFD_SLANT
, Qnormal
);
1888 /* Return a numeric value for the weight of the font given by FONT. */
1891 xlfd_numeric_weight (font
)
1892 struct font_name
*font
;
1894 return xlfd_numeric_value (weight_table
, DIM (weight_table
),
1895 font
, XLFD_WEIGHT
, XLFD_WEIGHT_MEDIUM
);
1899 /* Return a symbol representing the slant of the font given by FONT. */
1901 static INLINE Lisp_Object
1902 xlfd_symbolic_weight (font
)
1903 struct font_name
*font
;
1905 return xlfd_symbolic_value (weight_table
, DIM (weight_table
),
1906 font
, XLFD_WEIGHT
, Qnormal
);
1910 /* Return a numeric value for the swidth of the font whose XLFD font
1911 name fields are found in FONT. */
1914 xlfd_numeric_swidth (font
)
1915 struct font_name
*font
;
1917 return xlfd_numeric_value (swidth_table
, DIM (swidth_table
),
1918 font
, XLFD_SWIDTH
, XLFD_SWIDTH_MEDIUM
);
1922 /* Return a symbolic value for the swidth of FONT. */
1924 static INLINE Lisp_Object
1925 xlfd_symbolic_swidth (font
)
1926 struct font_name
*font
;
1928 return xlfd_symbolic_value (swidth_table
, DIM (swidth_table
),
1929 font
, XLFD_SWIDTH
, Qnormal
);
1933 /* Look up the entry of SYMBOL in the vector TABLE which has DIM
1934 entries. Value is a pointer to the matching table entry or null if
1935 no element of TABLE contains SYMBOL. */
1937 static struct table_entry
*
1938 face_value (table
, dim
, symbol
)
1939 struct table_entry
*table
;
1945 xassert (SYMBOLP (symbol
));
1947 for (i
= 0; i
< dim
; ++i
)
1948 if (EQ (*table
[i
].symbol
, symbol
))
1951 return i
< dim
? table
+ i
: NULL
;
1955 /* Return a numeric value for SYMBOL in the vector TABLE which has DIM
1956 entries. Value is -1 if SYMBOL is not found in TABLE. */
1959 face_numeric_value (table
, dim
, symbol
)
1960 struct table_entry
*table
;
1964 struct table_entry
*p
= face_value (table
, dim
, symbol
);
1965 return p
? p
->numeric
: -1;
1969 /* Return a numeric value representing the weight specified by Lisp
1970 symbol WEIGHT. Value is one of the enumerators of enum
1974 face_numeric_weight (weight
)
1977 return face_numeric_value (weight_table
, DIM (weight_table
), weight
);
1981 /* Return a numeric value representing the slant specified by Lisp
1982 symbol SLANT. Value is one of the enumerators of enum xlfd_slant. */
1985 face_numeric_slant (slant
)
1988 return face_numeric_value (slant_table
, DIM (slant_table
), slant
);
1992 /* Return a numeric value representing the swidth specified by Lisp
1993 symbol WIDTH. Value is one of the enumerators of enum xlfd_swidth. */
1996 face_numeric_swidth (width
)
1999 return face_numeric_value (swidth_table
, DIM (swidth_table
), width
);
2003 #ifdef HAVE_WINDOW_SYSTEM
2005 /* Return non-zero if FONT is the name of a fixed-pitch font. */
2009 struct font_name
*font
;
2011 /* Function split_font_name converts fields to lower-case, so there
2012 is no need to use tolower here. */
2013 return *font
->fields
[XLFD_SPACING
] != 'p';
2017 /* Return the point size of FONT on frame F, measured in 1/10 pt.
2019 The actual height of the font when displayed on F depends on the
2020 resolution of both the font and frame. For example, a 10pt font
2021 designed for a 100dpi display will display larger than 10pt on a
2022 75dpi display. (It's not unusual to use fonts not designed for the
2023 display one is using. For example, some intlfonts are available in
2024 72dpi versions, only.)
2026 Value is the real point size of FONT on frame F, or 0 if it cannot
2030 xlfd_point_size (f
, font
)
2032 struct font_name
*font
;
2034 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2035 double font_resy
= atoi (font
->fields
[XLFD_RESY
]);
2036 double font_pt
= atoi (font
->fields
[XLFD_POINT_SIZE
]);
2039 if (font_resy
== 0 || font_pt
== 0)
2042 real_pt
= (font_resy
/ resy
) * font_pt
+ 0.5;
2048 /* Return point size of PIXEL dots while considering Y-resultion (DPI)
2049 of frame F. This function is used to guess a point size of font
2050 when only the pixel height of the font is available. */
2053 pixel_point_size (f
, pixel
)
2057 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
2061 /* As one inch is 72 points, 72/RESY gives the point size of one dot. */
2062 real_pt
= pixel
* 72 / resy
;
2063 int_pt
= real_pt
+ 0.5;
2069 /* Split XLFD font name FONT->name destructively into NUL-terminated,
2070 lower-case fields in FONT->fields. NUMERIC_P non-zero means
2071 compute numeric values for fields XLFD_POINT_SIZE, XLFD_SWIDTH,
2072 XLFD_RESY, XLFD_SLANT, and XLFD_WEIGHT in FONT->numeric. Value is
2073 zero if the font name doesn't have the format we expect. The
2074 expected format is a font name that starts with a `-' and has
2075 XLFD_LAST fields separated by `-'. (The XLFD specification allows
2076 forms of font names where certain field contents are enclosed in
2077 square brackets. We don't support that, for now. */
2080 split_font_name (f
, font
, numeric_p
)
2082 struct font_name
*font
;
2088 if (*font
->name
== '-')
2090 char *p
= xstrlwr (font
->name
) + 1;
2092 while (i
< XLFD_LAST
)
2094 font
->fields
[i
] = p
;
2097 while (*p
&& *p
!= '-')
2107 success_p
= i
== XLFD_LAST
;
2109 /* If requested, and font name was in the expected format,
2110 compute numeric values for some fields. */
2111 if (numeric_p
&& success_p
)
2113 font
->numeric
[XLFD_POINT_SIZE
] = xlfd_point_size (f
, font
);
2114 font
->numeric
[XLFD_RESY
] = atoi (font
->fields
[XLFD_RESY
]);
2115 font
->numeric
[XLFD_SLANT
] = xlfd_numeric_slant (font
);
2116 font
->numeric
[XLFD_WEIGHT
] = xlfd_numeric_weight (font
);
2117 font
->numeric
[XLFD_SWIDTH
] = xlfd_numeric_swidth (font
);
2124 /* Build an XLFD font name from font name fields in FONT. Value is a
2125 pointer to the font name, which is allocated via xmalloc. */
2128 build_font_name (font
)
2129 struct font_name
*font
;
2133 char *font_name
= (char *) xmalloc (size
);
2134 int total_length
= 0;
2136 for (i
= 0; i
< XLFD_LAST
; ++i
)
2138 /* Add 1 because of the leading `-'. */
2139 int len
= strlen (font
->fields
[i
]) + 1;
2141 /* Reallocate font_name if necessary. Add 1 for the final
2143 if (total_length
+ len
+ 1 >= size
)
2145 int new_size
= max (2 * size
, size
+ len
+ 1);
2146 int sz
= new_size
* sizeof *font_name
;
2147 font_name
= (char *) xrealloc (font_name
, sz
);
2151 font_name
[total_length
] = '-';
2152 bcopy (font
->fields
[i
], font_name
+ total_length
+ 1, len
- 1);
2153 total_length
+= len
;
2156 font_name
[total_length
] = 0;
2161 /* Free an array FONTS of N font_name structures. This frees FONTS
2162 itself and all `name' fields in its elements. */
2165 free_font_names (fonts
, n
)
2166 struct font_name
*fonts
;
2170 xfree (fonts
[--n
].name
);
2175 /* Sort vector FONTS of font_name structures which contains NFONTS
2176 elements using qsort and comparison function CMPFN. F is the frame
2177 on which the fonts will be used. The global variable font_frame
2178 is temporarily set to F to make it available in CMPFN. */
2181 sort_fonts (f
, fonts
, nfonts
, cmpfn
)
2183 struct font_name
*fonts
;
2185 int (*cmpfn
) P_ ((const void *, const void *));
2188 qsort (fonts
, nfonts
, sizeof *fonts
, cmpfn
);
2193 /* Get fonts matching PATTERN on frame F. If F is null, use the first
2194 display in x_display_list. FONTS is a pointer to a vector of
2195 NFONTS font_name structures. TRY_ALTERNATIVES_P non-zero means try
2196 alternative patterns from Valternate_fontname_alist if no fonts are
2197 found matching PATTERN. SCALABLE_FONTS_P non-zero means include
2200 For all fonts found, set FONTS[i].name to the name of the font,
2201 allocated via xmalloc, and split font names into fields. Ignore
2202 fonts that we can't parse. Value is the number of fonts found.
2204 This is similar to x_list_fonts. The differences are:
2206 1. It avoids consing.
2207 2. It never calls XLoadQueryFont. */
2210 x_face_list_fonts (f
, pattern
, fonts
, nfonts
, try_alternatives_p
,
2214 struct font_name
*fonts
;
2215 int nfonts
, try_alternatives_p
;
2216 int scalable_fonts_p
;
2220 #ifdef HAVE_X_WINDOWS
2221 Display
*dpy
= f
? FRAME_X_DISPLAY (f
) : x_display_list
->display
;
2223 /* Get the list of fonts matching PATTERN from the X server. */
2225 names
= XListFonts (dpy
, pattern
, nfonts
, &n
);
2229 /* NTEMACS_TODO : currently this uses w32_list_fonts, but it may be
2230 better to do it the other way around. */
2232 Lisp_Object lpattern
, tem
;
2237 lpattern
= build_string (pattern
);
2239 /* Get the list of fonts matching PATTERN. */
2241 lfonts
= w32_list_fonts (f
, lpattern
, 0, nfonts
);
2244 /* Count fonts returned */
2245 for (tem
= lfonts
; CONSP (tem
); tem
= XCDR (tem
))
2248 /* Allocate array. */
2250 names
= (char **) xmalloc (n
* sizeof (char *));
2252 /* Extract font names into char * array. */
2254 for (i
= 0; i
< n
; i
++)
2256 names
[i
] = XSTRING (XCAR (tem
))->data
;
2263 /* Make a copy of the font names we got from X, and
2264 split them into fields. */
2265 for (i
= j
= 0; i
< n
; ++i
)
2267 /* Make a copy of the font name. */
2268 fonts
[j
].name
= xstrdup (names
[i
]);
2270 /* Ignore fonts having a name that we can't parse. */
2271 if (!split_font_name (f
, fonts
+ j
, 1))
2272 xfree (fonts
[j
].name
);
2273 else if (font_scalable_p (fonts
+ j
))
2276 if (!scalable_fonts_p
2277 || !may_use_scalable_font_p (fonts
+ j
, names
[i
]))
2278 xfree (fonts
[j
].name
);
2281 #else /* !SCALABLE_FONTS */
2282 /* Always ignore scalable fonts. */
2283 xfree (fonts
[j
].name
);
2284 #endif /* !SCALABLE_FONTS */
2292 #ifdef HAVE_X_WINDOWS
2293 /* Free font names. */
2295 XFreeFontNames (names
);
2301 /* If no fonts found, try patterns from Valternate_fontname_alist. */
2302 if (n
== 0 && try_alternatives_p
)
2304 Lisp_Object list
= Valternate_fontname_alist
;
2306 while (CONSP (list
))
2308 Lisp_Object entry
= XCAR (list
);
2310 && STRINGP (XCAR (entry
))
2311 && strcmp (XSTRING (XCAR (entry
))->data
, pattern
) == 0)
2318 Lisp_Object patterns
= XCAR (list
);
2321 while (CONSP (patterns
)
2322 /* If list is screwed up, give up. */
2323 && (name
= XCAR (patterns
),
2325 /* Ignore patterns equal to PATTERN because we tried that
2326 already with no success. */
2327 && (strcmp (XSTRING (name
)->data
, pattern
) == 0
2328 || (n
= x_face_list_fonts (f
, XSTRING (name
)->data
,
2332 patterns
= XCDR (patterns
);
2340 /* Determine the first font matching PATTERN on frame F. Return in
2341 *FONT the matching font name, split into fields. Value is non-zero
2342 if a match was found. */
2345 first_font_matching (f
, pattern
, font
)
2348 struct font_name
*font
;
2351 struct font_name
*fonts
;
2353 fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof *fonts
);
2354 nfonts
= x_face_list_fonts (f
, pattern
, fonts
, nfonts
, 1, 0);
2358 bcopy (&fonts
[0], font
, sizeof *font
);
2360 fonts
[0].name
= NULL
;
2361 free_font_names (fonts
, nfonts
);
2368 /* Determine fonts matching PATTERN on frame F. Sort resulting fonts
2369 using comparison function CMPFN. Value is the number of fonts
2370 found. If value is non-zero, *FONTS is set to a vector of
2371 font_name structures allocated from the heap containing matching
2372 fonts. Each element of *FONTS contains a name member that is also
2373 allocated from the heap. Font names in these structures are split
2374 into fields. Use free_font_names to free such an array. */
2377 sorted_font_list (f
, pattern
, cmpfn
, fonts
)
2380 int (*cmpfn
) P_ ((const void *, const void *));
2381 struct font_name
**fonts
;
2385 /* Get the list of fonts matching pattern. 100 should suffice. */
2386 nfonts
= DEFAULT_FONT_LIST_LIMIT
;
2387 if (INTEGERP (Vfont_list_limit
) && XINT (Vfont_list_limit
) > 0)
2388 nfonts
= XFASTINT (Vfont_list_limit
);
2390 *fonts
= (struct font_name
*) xmalloc (nfonts
* sizeof **fonts
);
2392 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 1);
2394 nfonts
= x_face_list_fonts (f
, pattern
, *fonts
, nfonts
, 1, 0);
2397 /* Sort the resulting array and return it in *FONTS. If no
2398 fonts were found, make sure to set *FONTS to null. */
2400 sort_fonts (f
, *fonts
, nfonts
, cmpfn
);
2411 /* Compare two font_name structures *A and *B. Value is analogous to
2412 strcmp. Sort order is given by the global variable
2413 font_sort_order. Font names are sorted so that, everything else
2414 being equal, fonts with a resolution closer to that of the frame on
2415 which they are used are listed first. The global variable
2416 font_frame is the frame on which we operate. */
2419 cmp_font_names (a
, b
)
2422 struct font_name
*x
= (struct font_name
*) a
;
2423 struct font_name
*y
= (struct font_name
*) b
;
2426 /* All strings have been converted to lower-case by split_font_name,
2427 so we can use strcmp here. */
2428 cmp
= strcmp (x
->fields
[XLFD_FAMILY
], y
->fields
[XLFD_FAMILY
]);
2433 for (i
= 0; i
< DIM (font_sort_order
) && cmp
== 0; ++i
)
2435 int j
= font_sort_order
[i
];
2436 cmp
= x
->numeric
[j
] - y
->numeric
[j
];
2441 /* Everything else being equal, we prefer fonts with an
2442 y-resolution closer to that of the frame. */
2443 int resy
= FRAME_X_DISPLAY_INFO (font_frame
)->resy
;
2444 int x_resy
= x
->numeric
[XLFD_RESY
];
2445 int y_resy
= y
->numeric
[XLFD_RESY
];
2446 cmp
= abs (resy
- x_resy
) - abs (resy
- y_resy
);
2454 /* Get a sorted list of fonts of family FAMILY on frame F. If PATTERN
2455 is non-nil list fonts matching that pattern. Otherwise, if
2456 REGISTRY is non-nil return only fonts with that registry, otherwise
2457 return fonts of any registry. Set *FONTS to a vector of font_name
2458 structures allocated from the heap containing the fonts found.
2459 Value is the number of fonts found. */
2462 font_list (f
, pattern
, family
, registry
, fonts
)
2464 Lisp_Object pattern
, family
, registry
;
2465 struct font_name
**fonts
;
2467 char *pattern_str
, *family_str
, *registry_str
;
2471 family_str
= (NILP (family
) ? "*" : (char *) XSTRING (family
)->data
);
2472 registry_str
= (NILP (registry
) ? "*" : (char *) XSTRING (registry
)->data
);
2474 pattern_str
= (char *) alloca (strlen (family_str
)
2475 + strlen (registry_str
)
2477 strcpy (pattern_str
, index (family_str
, '-') ? "-" : "-*-");
2478 strcat (pattern_str
, family_str
);
2479 strcat (pattern_str
, "-*-");
2480 strcat (pattern_str
, registry_str
);
2481 if (!index (registry_str
, '-'))
2483 if (registry_str
[strlen (registry_str
) - 1] == '*')
2484 strcat (pattern_str
, "-*");
2486 strcat (pattern_str
, "*-*");
2490 pattern_str
= (char *) XSTRING (pattern
)->data
;
2492 return sorted_font_list (f
, pattern_str
, cmp_font_names
, fonts
);
2496 /* Remove elements from LIST whose cars are `equal'. Called from
2497 x-family-fonts and x-font-family-list to remove duplicate font
2501 remove_duplicates (list
)
2504 Lisp_Object tail
= list
;
2506 while (!NILP (tail
) && !NILP (XCDR (tail
)))
2508 Lisp_Object next
= XCDR (tail
);
2509 if (!NILP (Fequal (XCAR (next
), XCAR (tail
))))
2510 XCDR (tail
) = XCDR (next
);
2517 DEFUN ("x-family-fonts", Fx_family_fonts
, Sx_family_fonts
, 0, 2, 0,
2518 "Return a list of available fonts of family FAMILY on FRAME.\n\
2519 If FAMILY is omitted or nil, list all families.\n\
2520 Otherwise, FAMILY must be a string, possibly containing wildcards\n\
2522 If FRAME is omitted or nil, use the selected frame.\n\
2523 Each element of the result is a vector [FAMILY WIDTH POINT-SIZE WEIGHT\n\
2524 SLANT FIXED-P FULL REGISTRY-AND-ENCODING].\n\
2525 FAMILY is the font family name. POINT-SIZE is the size of the\n\
2526 font in 1/10 pt. WIDTH, WEIGHT, and SLANT are symbols describing the\n\
2527 width, weight and slant of the font. These symbols are the same as for\n\
2528 face attributes. FIXED-P is non-nil if the font is fixed-pitch.\n\
2529 FULL is the full name of the font, and REGISTRY-AND-ENCODING is a string\n\
2530 giving the registry and encoding of the font.\n\
2531 The result list is sorted according to the current setting of\n\
2532 the face font sort order.")
2534 Lisp_Object family
, frame
;
2536 struct frame
*f
= check_x_frame (frame
);
2537 struct font_name
*fonts
;
2540 struct gcpro gcpro1
;
2543 CHECK_STRING (family
, 1);
2547 nfonts
= font_list (f
, Qnil
, family
, Qnil
, &fonts
);
2548 for (i
= nfonts
- 1; i
>= 0; --i
)
2550 Lisp_Object v
= Fmake_vector (make_number (8), Qnil
);
2553 #define ASET(VECTOR, IDX, VAL) (XVECTOR (VECTOR)->contents[IDX] = (VAL))
2555 ASET (v
, 0, build_string (fonts
[i
].fields
[XLFD_FAMILY
]));
2556 ASET (v
, 1, xlfd_symbolic_swidth (fonts
+ i
));
2557 ASET (v
, 2, make_number (xlfd_point_size (f
, fonts
+ i
)));
2558 ASET (v
, 3, xlfd_symbolic_weight (fonts
+ i
));
2559 ASET (v
, 4, xlfd_symbolic_slant (fonts
+ i
));
2560 ASET (v
, 5, xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
);
2561 tem
= build_font_name (fonts
+ i
);
2562 ASET (v
, 6, build_string (tem
));
2563 sprintf (tem
, "%s-%s", fonts
[i
].fields
[XLFD_REGISTRY
],
2564 fonts
[i
].fields
[XLFD_ENCODING
]);
2565 ASET (v
, 7, build_string (tem
));
2568 result
= Fcons (v
, result
);
2573 remove_duplicates (result
);
2574 free_font_names (fonts
, nfonts
);
2580 DEFUN ("x-font-family-list", Fx_font_family_list
, Sx_font_family_list
,
2582 "Return a list of available font families on FRAME.\n\
2583 If FRAME is omitted or nil, use the selected frame.\n\
2584 Value is a list of conses (FAMILY . FIXED-P) where FAMILY\n\
2585 is a font family, and FIXED-P is non-nil if fonts of that family\n\
2590 struct frame
*f
= check_x_frame (frame
);
2592 struct font_name
*fonts
;
2594 struct gcpro gcpro1
;
2595 int count
= specpdl_ptr
- specpdl
;
2598 /* Let's consider all fonts. Increase the limit for matching
2599 fonts until we have them all. */
2602 specbind (intern ("font-list-limit"), make_number (limit
));
2603 nfonts
= font_list (f
, Qnil
, Qnil
, Qnil
, &fonts
);
2605 if (nfonts
== limit
)
2607 free_font_names (fonts
, nfonts
);
2616 for (i
= nfonts
- 1; i
>= 0; --i
)
2617 result
= Fcons (Fcons (build_string (fonts
[i
].fields
[XLFD_FAMILY
]),
2618 xlfd_fixed_p (fonts
+ i
) ? Qt
: Qnil
),
2621 remove_duplicates (result
);
2622 free_font_names (fonts
, nfonts
);
2624 return unbind_to (count
, result
);
2628 DEFUN ("x-list-fonts", Fx_list_fonts
, Sx_list_fonts
, 1, 5, 0,
2629 "Return a list of the names of available fonts matching PATTERN.\n\
2630 If optional arguments FACE and FRAME are specified, return only fonts\n\
2631 the same size as FACE on FRAME.\n\
2632 PATTERN is a string, perhaps with wildcard characters;\n\
2633 the * character matches any substring, and\n\
2634 the ? character matches any single character.\n\
2635 PATTERN is case-insensitive.\n\
2636 FACE is a face name--a symbol.\n\
2638 The return value is a list of strings, suitable as arguments to\n\
2641 Fonts Emacs can't use may or may not be excluded\n\
2642 even if they match PATTERN and FACE.\n\
2643 The optional fourth argument MAXIMUM sets a limit on how many\n\
2644 fonts to match. The first MAXIMUM fonts are reported.\n\
2645 The optional fifth argument WIDTH, if specified, is a number of columns\n\
2646 occupied by a character of a font. In that case, return only fonts\n\
2647 the WIDTH times as wide as FACE on FRAME.")
2648 (pattern
, face
, frame
, maximum
, width
)
2649 Lisp_Object pattern
, face
, frame
, maximum
, width
;
2656 CHECK_STRING (pattern
, 0);
2662 CHECK_NATNUM (maximum
, 0);
2663 maxnames
= XINT (maximum
);
2667 CHECK_NUMBER (width
, 4);
2669 /* We can't simply call check_x_frame because this function may be
2670 called before any frame is created. */
2671 f
= frame_or_selected_frame (frame
, 2);
2672 if (!FRAME_WINDOW_P (f
))
2674 /* Perhaps we have not yet created any frame. */
2679 /* Determine the width standard for comparison with the fonts we find. */
2685 /* This is of limited utility since it works with character
2686 widths. Keep it for compatibility. --gerd. */
2687 int face_id
= lookup_named_face (f
, face
, 0);
2688 struct face
*face
= FACE_FROM_ID (f
, face_id
);
2691 size
= FONT_WIDTH (face
->font
);
2693 size
= FONT_WIDTH (FRAME_FONT (f
));
2696 size
*= XINT (width
);
2700 Lisp_Object args
[2];
2702 args
[0] = x_list_fonts (f
, pattern
, size
, maxnames
);
2704 /* We don't have to check fontsets. */
2706 args
[1] = list_fontsets (f
, pattern
, size
);
2707 return Fnconc (2, args
);
2711 #endif /* HAVE_WINDOW_SYSTEM */
2715 /***********************************************************************
2717 ***********************************************************************/
2719 /* Access face attributes of face FACE, a Lisp vector. */
2721 #define LFACE_FAMILY(LFACE) \
2722 XVECTOR (LFACE)->contents[LFACE_FAMILY_INDEX]
2723 #define LFACE_HEIGHT(LFACE) \
2724 XVECTOR (LFACE)->contents[LFACE_HEIGHT_INDEX]
2725 #define LFACE_WEIGHT(LFACE) \
2726 XVECTOR (LFACE)->contents[LFACE_WEIGHT_INDEX]
2727 #define LFACE_SLANT(LFACE) \
2728 XVECTOR (LFACE)->contents[LFACE_SLANT_INDEX]
2729 #define LFACE_UNDERLINE(LFACE) \
2730 XVECTOR (LFACE)->contents[LFACE_UNDERLINE_INDEX]
2731 #define LFACE_INVERSE(LFACE) \
2732 XVECTOR (LFACE)->contents[LFACE_INVERSE_INDEX]
2733 #define LFACE_FOREGROUND(LFACE) \
2734 XVECTOR (LFACE)->contents[LFACE_FOREGROUND_INDEX]
2735 #define LFACE_BACKGROUND(LFACE) \
2736 XVECTOR (LFACE)->contents[LFACE_BACKGROUND_INDEX]
2737 #define LFACE_STIPPLE(LFACE) \
2738 XVECTOR (LFACE)->contents[LFACE_STIPPLE_INDEX]
2739 #define LFACE_SWIDTH(LFACE) \
2740 XVECTOR (LFACE)->contents[LFACE_SWIDTH_INDEX]
2741 #define LFACE_OVERLINE(LFACE) \
2742 XVECTOR (LFACE)->contents[LFACE_OVERLINE_INDEX]
2743 #define LFACE_STRIKE_THROUGH(LFACE) \
2744 XVECTOR (LFACE)->contents[LFACE_STRIKE_THROUGH_INDEX]
2745 #define LFACE_BOX(LFACE) \
2746 XVECTOR (LFACE)->contents[LFACE_BOX_INDEX]
2747 #define LFACE_FONT(LFACE) \
2748 XVECTOR (LFACE)->contents[LFACE_FONT_INDEX]
2750 /* Non-zero if LFACE is a Lisp face. A Lisp face is a vector of size
2751 LFACE_VECTOR_SIZE which has the symbol `face' in slot 0. */
2753 #define LFACEP(LFACE) \
2755 && XVECTOR (LFACE)->size == LFACE_VECTOR_SIZE \
2756 && EQ (XVECTOR (LFACE)->contents[0], Qface))
2761 /* Check consistency of Lisp face attribute vector ATTRS. */
2764 check_lface_attrs (attrs
)
2767 xassert (UNSPECIFIEDP (attrs
[LFACE_FAMILY_INDEX
])
2768 || STRINGP (attrs
[LFACE_FAMILY_INDEX
]));
2769 xassert (UNSPECIFIEDP (attrs
[LFACE_SWIDTH_INDEX
])
2770 || SYMBOLP (attrs
[LFACE_SWIDTH_INDEX
]));
2771 xassert (UNSPECIFIEDP (attrs
[LFACE_HEIGHT_INDEX
])
2772 || INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]));
2773 xassert (UNSPECIFIEDP (attrs
[LFACE_WEIGHT_INDEX
])
2774 || SYMBOLP (attrs
[LFACE_WEIGHT_INDEX
]));
2775 xassert (UNSPECIFIEDP (attrs
[LFACE_SLANT_INDEX
])
2776 || SYMBOLP (attrs
[LFACE_SLANT_INDEX
]));
2777 xassert (UNSPECIFIEDP (attrs
[LFACE_UNDERLINE_INDEX
])
2778 || SYMBOLP (attrs
[LFACE_UNDERLINE_INDEX
])
2779 || STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]));
2780 xassert (UNSPECIFIEDP (attrs
[LFACE_OVERLINE_INDEX
])
2781 || SYMBOLP (attrs
[LFACE_OVERLINE_INDEX
])
2782 || STRINGP (attrs
[LFACE_OVERLINE_INDEX
]));
2783 xassert (UNSPECIFIEDP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2784 || SYMBOLP (attrs
[LFACE_STRIKE_THROUGH_INDEX
])
2785 || STRINGP (attrs
[LFACE_STRIKE_THROUGH_INDEX
]));
2786 xassert (UNSPECIFIEDP (attrs
[LFACE_BOX_INDEX
])
2787 || SYMBOLP (attrs
[LFACE_BOX_INDEX
])
2788 || STRINGP (attrs
[LFACE_BOX_INDEX
])
2789 || INTEGERP (attrs
[LFACE_BOX_INDEX
])
2790 || CONSP (attrs
[LFACE_BOX_INDEX
]));
2791 xassert (UNSPECIFIEDP (attrs
[LFACE_INVERSE_INDEX
])
2792 || SYMBOLP (attrs
[LFACE_INVERSE_INDEX
]));
2793 xassert (UNSPECIFIEDP (attrs
[LFACE_FOREGROUND_INDEX
])
2794 || STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]));
2795 xassert (UNSPECIFIEDP (attrs
[LFACE_BACKGROUND_INDEX
])
2796 || STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]));
2797 #ifdef HAVE_WINDOW_SYSTEM
2798 xassert (UNSPECIFIEDP (attrs
[LFACE_STIPPLE_INDEX
])
2799 || SYMBOLP (attrs
[LFACE_STIPPLE_INDEX
])
2800 || !NILP (Fbitmap_spec_p (attrs
[LFACE_STIPPLE_INDEX
])));
2801 xassert (UNSPECIFIEDP (attrs
[LFACE_FONT_INDEX
])
2802 || NILP (attrs
[LFACE_FONT_INDEX
])
2803 || STRINGP (attrs
[LFACE_FONT_INDEX
]));
2808 /* Check consistency of attributes of Lisp face LFACE (a Lisp vector). */
2816 xassert (LFACEP (lface
));
2817 check_lface_attrs (XVECTOR (lface
)->contents
);
2821 #else /* GLYPH_DEBUG == 0 */
2823 #define check_lface_attrs(attrs) (void) 0
2824 #define check_lface(lface) (void) 0
2826 #endif /* GLYPH_DEBUG == 0 */
2829 /* Resolve face name FACE_NAME. If FACE_NAME is a string, intern it
2830 to make it a symvol. If FACE_NAME is an alias for another face,
2831 return that face's name. */
2834 resolve_face_name (face_name
)
2835 Lisp_Object face_name
;
2837 Lisp_Object aliased
;
2839 if (STRINGP (face_name
))
2840 face_name
= intern (XSTRING (face_name
)->data
);
2844 aliased
= Fget (face_name
, Qface_alias
);
2848 face_name
= aliased
;
2855 /* Return the face definition of FACE_NAME on frame F. F null means
2856 return the global definition. FACE_NAME may be a string or a
2857 symbol (apparently Emacs 20.2 allows strings as face names in face
2858 text properties; ediff uses that). If FACE_NAME is an alias for
2859 another face, return that face's definition. If SIGNAL_P is
2860 non-zero, signal an error if FACE_NAME is not a valid face name.
2861 If SIGNAL_P is zero, value is nil if FACE_NAME is not a valid face
2864 static INLINE Lisp_Object
2865 lface_from_face_name (f
, face_name
, signal_p
)
2867 Lisp_Object face_name
;
2872 face_name
= resolve_face_name (face_name
);
2875 lface
= assq_no_quit (face_name
, f
->face_alist
);
2877 lface
= assq_no_quit (face_name
, Vface_new_frame_defaults
);
2880 lface
= XCDR (lface
);
2882 signal_error ("Invalid face", face_name
);
2884 check_lface (lface
);
2889 /* Get face attributes of face FACE_NAME from frame-local faces on
2890 frame F. Store the resulting attributes in ATTRS which must point
2891 to a vector of Lisp_Objects of size LFACE_VECTOR_SIZE. If SIGNAL_P
2892 is non-zero, signal an error if FACE_NAME does not name a face.
2893 Otherwise, value is zero if FACE_NAME is not a face. */
2896 get_lface_attributes (f
, face_name
, attrs
, signal_p
)
2898 Lisp_Object face_name
;
2905 lface
= lface_from_face_name (f
, face_name
, signal_p
);
2908 bcopy (XVECTOR (lface
)->contents
, attrs
,
2909 LFACE_VECTOR_SIZE
* sizeof *attrs
);
2919 /* Non-zero if all attributes in face attribute vector ATTRS are
2920 specified, i.e. are non-nil. */
2923 lface_fully_specified_p (attrs
)
2928 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
2929 if (UNSPECIFIEDP (attrs
[i
]) && i
!= LFACE_FONT_INDEX
)
2932 return i
== LFACE_VECTOR_SIZE
;
2935 #ifdef HAVE_WINDOW_SYSTEM
2937 /* Set font-related attributes of Lisp face LFACE from the fullname of
2938 the font opened by FONTNAME. If FORCE_P is zero, set only
2939 unspecified attributes of LFACE. The exception is `font'
2940 attribute. It is set to FONTNAME as is regardless of FORCE_P.
2942 If FONTNAME is not available on frame F,
2943 return 0 if MAY_FAIL_P is non-zero, otherwise abort.
2944 If the fullname is not in a valid XLFD format,
2945 return 0 if MAY_FAIL_P is non-zero, otherwise set normal values
2946 in LFACE and return 1.
2947 Otherwise, return 1. */
2950 set_lface_from_font_name (f
, lface
, fontname
, force_p
, may_fail_p
)
2953 Lisp_Object fontname
;
2954 int force_p
, may_fail_p
;
2956 struct font_name font
;
2961 char *font_name
= XSTRING (fontname
)->data
;
2962 struct font_info
*font_info
;
2964 /* If FONTNAME is actually a fontset name, get ASCII font name of it. */
2965 fontset
= fs_query_fontset (fontname
, 0);
2967 font_name
= XSTRING (fontset_ascii (fontset
))->data
;
2969 /* Check if FONT_NAME is surely available on the system. Usually
2970 FONT_NAME is already cached for the frame F and FS_LOAD_FONT
2971 returns quickly. But, even if FONT_NAME is not yet cached,
2972 caching it now is not futail because we anyway load the font
2975 font_info
= FS_LOAD_FONT (f
, 0, font_name
, -1);
2985 font
.name
= STRDUPA (font_info
->full_name
);
2986 have_xlfd_p
= split_font_name (f
, &font
, 1);
2988 /* Set attributes only if unspecified, otherwise face defaults for
2989 new frames would never take effect. If we couldn't get a font
2990 name conforming to XLFD, set normal values. */
2992 if (force_p
|| UNSPECIFIEDP (LFACE_FAMILY (lface
)))
2997 buffer
= (char *) alloca (strlen (font
.fields
[XLFD_FAMILY
])
2998 + strlen (font
.fields
[XLFD_FOUNDRY
])
3000 sprintf (buffer
, "%s-%s", font
.fields
[XLFD_FOUNDRY
],
3001 font
.fields
[XLFD_FAMILY
]);
3002 val
= build_string (buffer
);
3005 val
= build_string ("*");
3006 LFACE_FAMILY (lface
) = val
;
3009 if (force_p
|| UNSPECIFIEDP (LFACE_HEIGHT (lface
)))
3012 pt
= xlfd_point_size (f
, &font
);
3014 pt
= pixel_point_size (f
, font_info
->height
* 10);
3016 LFACE_HEIGHT (lface
) = make_number (pt
);
3019 if (force_p
|| UNSPECIFIEDP (LFACE_SWIDTH (lface
)))
3020 LFACE_SWIDTH (lface
)
3021 = have_xlfd_p
? xlfd_symbolic_swidth (&font
) : Qnormal
;
3023 if (force_p
|| UNSPECIFIEDP (LFACE_WEIGHT (lface
)))
3024 LFACE_WEIGHT (lface
)
3025 = have_xlfd_p
? xlfd_symbolic_weight (&font
) : Qnormal
;
3027 if (force_p
|| UNSPECIFIEDP (LFACE_SLANT (lface
)))
3029 = have_xlfd_p
? xlfd_symbolic_slant (&font
) : Qnormal
;
3031 LFACE_FONT (lface
) = fontname
;
3035 #endif /* HAVE_WINDOW_SYSTEM */
3038 /* Merge two Lisp face attribute vectors FROM and TO and store the
3039 resulting attributes in TO. Every non-nil attribute of FROM
3040 overrides the corresponding attribute of TO. */
3043 merge_face_vectors (from
, to
)
3044 Lisp_Object
*from
, *to
;
3047 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3048 if (!UNSPECIFIEDP (from
[i
]))
3053 /* Given a Lisp face attribute vector TO and a Lisp object PROP that
3054 is a face property, determine the resulting face attributes on
3055 frame F, and store them in TO. PROP may be a single face
3056 specification or a list of such specifications. Each face
3057 specification can be
3059 1. A symbol or string naming a Lisp face.
3061 2. A property list of the form (KEYWORD VALUE ...) where each
3062 KEYWORD is a face attribute name, and value is an appropriate value
3065 3. Conses or the form (FOREGROUND-COLOR . COLOR) or
3066 (BACKGROUND-COLOR . COLOR) where COLOR is a color name. This is
3067 for compatibility with 20.2.
3069 Face specifications earlier in lists take precedence over later
3073 merge_face_vector_with_property (f
, to
, prop
)
3080 Lisp_Object first
= XCAR (prop
);
3082 if (EQ (first
, Qforeground_color
)
3083 || EQ (first
, Qbackground_color
))
3085 /* One of (FOREGROUND-COLOR . COLOR) or (BACKGROUND-COLOR
3086 . COLOR). COLOR must be a string. */
3087 Lisp_Object color_name
= XCDR (prop
);
3088 Lisp_Object color
= first
;
3090 if (STRINGP (color_name
))
3092 if (EQ (color
, Qforeground_color
))
3093 to
[LFACE_FOREGROUND_INDEX
] = color_name
;
3095 to
[LFACE_BACKGROUND_INDEX
] = color_name
;
3098 add_to_log ("Invalid face color", color_name
, Qnil
);
3100 else if (SYMBOLP (first
)
3101 && *XSYMBOL (first
)->name
->data
== ':')
3103 /* Assume this is the property list form. */
3104 while (CONSP (prop
) && CONSP (XCDR (prop
)))
3106 Lisp_Object keyword
= XCAR (prop
);
3107 Lisp_Object value
= XCAR (XCDR (prop
));
3109 if (EQ (keyword
, QCfamily
))
3111 if (STRINGP (value
))
3112 to
[LFACE_FAMILY_INDEX
] = value
;
3114 add_to_log ("Illegal face font family", value
, Qnil
);
3116 else if (EQ (keyword
, QCheight
))
3118 if (INTEGERP (value
))
3119 to
[LFACE_HEIGHT_INDEX
] = value
;
3121 add_to_log ("Illegal face font height", value
, Qnil
);
3123 else if (EQ (keyword
, QCweight
))
3126 && face_numeric_weight (value
) >= 0)
3127 to
[LFACE_WEIGHT_INDEX
] = value
;
3129 add_to_log ("Illegal face weight", value
, Qnil
);
3131 else if (EQ (keyword
, QCslant
))
3134 && face_numeric_slant (value
) >= 0)
3135 to
[LFACE_SLANT_INDEX
] = value
;
3137 add_to_log ("Illegal face slant", value
, Qnil
);
3139 else if (EQ (keyword
, QCunderline
))
3144 to
[LFACE_UNDERLINE_INDEX
] = value
;
3146 add_to_log ("Illegal face underline", value
, Qnil
);
3148 else if (EQ (keyword
, QCoverline
))
3153 to
[LFACE_OVERLINE_INDEX
] = value
;
3155 add_to_log ("Illegal face overline", value
, Qnil
);
3157 else if (EQ (keyword
, QCstrike_through
))
3162 to
[LFACE_STRIKE_THROUGH_INDEX
] = value
;
3164 add_to_log ("Illegal face strike-through", value
, Qnil
);
3166 else if (EQ (keyword
, QCbox
))
3169 value
= make_number (1);
3170 if (INTEGERP (value
)
3174 to
[LFACE_BOX_INDEX
] = value
;
3176 add_to_log ("Illegal face box", value
, Qnil
);
3178 else if (EQ (keyword
, QCinverse_video
)
3179 || EQ (keyword
, QCreverse_video
))
3181 if (EQ (value
, Qt
) || NILP (value
))
3182 to
[LFACE_INVERSE_INDEX
] = value
;
3184 add_to_log ("Illegal face inverse-video", value
, Qnil
);
3186 else if (EQ (keyword
, QCforeground
))
3188 if (STRINGP (value
))
3189 to
[LFACE_FOREGROUND_INDEX
] = value
;
3191 add_to_log ("Illegal face foreground", value
, Qnil
);
3193 else if (EQ (keyword
, QCbackground
))
3195 if (STRINGP (value
))
3196 to
[LFACE_BACKGROUND_INDEX
] = value
;
3198 add_to_log ("Illegal face background", value
, Qnil
);
3200 else if (EQ (keyword
, QCstipple
))
3202 #ifdef HAVE_X_WINDOWS
3203 Lisp_Object pixmap_p
= Fbitmap_spec_p (value
);
3204 if (!NILP (pixmap_p
))
3205 to
[LFACE_STIPPLE_INDEX
] = value
;
3207 add_to_log ("Illegal face stipple", value
, Qnil
);
3210 else if (EQ (keyword
, QCwidth
))
3213 && face_numeric_swidth (value
) >= 0)
3214 to
[LFACE_SWIDTH_INDEX
] = value
;
3216 add_to_log ("Illegal face width", value
, Qnil
);
3219 add_to_log ("Invalid attribute %s in face property",
3222 prop
= XCDR (XCDR (prop
));
3227 /* This is a list of face specs. Specifications at the
3228 beginning of the list take precedence over later
3229 specifications, so we have to merge starting with the
3230 last specification. */
3231 Lisp_Object next
= XCDR (prop
);
3233 merge_face_vector_with_property (f
, to
, next
);
3234 merge_face_vector_with_property (f
, to
, first
);
3239 /* PROP ought to be a face name. */
3240 Lisp_Object lface
= lface_from_face_name (f
, prop
, 0);
3242 add_to_log ("Invalid face text property value: %s", prop
, Qnil
);
3244 merge_face_vectors (XVECTOR (lface
)->contents
, to
);
3249 DEFUN ("internal-make-lisp-face", Finternal_make_lisp_face
,
3250 Sinternal_make_lisp_face
, 1, 2, 0,
3251 "Make FACE, a symbol, a Lisp face with all attributes nil.\n\
3252 If FACE was not known as a face before, create a new one.\n\
3253 If optional argument FRAME is specified, make a frame-local face\n\
3254 for that frame. Otherwise operate on the global face definition.\n\
3255 Value is a vector of face attributes.")
3257 Lisp_Object face
, frame
;
3259 Lisp_Object global_lface
, lface
;
3263 CHECK_SYMBOL (face
, 0);
3264 global_lface
= lface_from_face_name (NULL
, face
, 0);
3268 CHECK_LIVE_FRAME (frame
, 1);
3270 lface
= lface_from_face_name (f
, face
, 0);
3273 f
= NULL
, lface
= Qnil
;
3275 /* Add a global definition if there is none. */
3276 if (NILP (global_lface
))
3278 global_lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3280 XVECTOR (global_lface
)->contents
[0] = Qface
;
3281 Vface_new_frame_defaults
= Fcons (Fcons (face
, global_lface
),
3282 Vface_new_frame_defaults
);
3284 /* Assign the new Lisp face a unique ID. The mapping from Lisp
3285 face id to Lisp face is given by the vector lface_id_to_name.
3286 The mapping from Lisp face to Lisp face id is given by the
3287 property `face' of the Lisp face name. */
3288 if (next_lface_id
== lface_id_to_name_size
)
3290 int new_size
= max (50, 2 * lface_id_to_name_size
);
3291 int sz
= new_size
* sizeof *lface_id_to_name
;
3292 lface_id_to_name
= (Lisp_Object
*) xrealloc (lface_id_to_name
, sz
);
3293 lface_id_to_name_size
= new_size
;
3296 lface_id_to_name
[next_lface_id
] = face
;
3297 Fput (face
, Qface
, make_number (next_lface_id
));
3301 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3302 XVECTOR (global_lface
)->contents
[i
] = Qunspecified
;
3304 /* Add a frame-local definition. */
3309 lface
= Fmake_vector (make_number (LFACE_VECTOR_SIZE
),
3311 XVECTOR (lface
)->contents
[0] = Qface
;
3312 f
->face_alist
= Fcons (Fcons (face
, lface
), f
->face_alist
);
3315 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
3316 XVECTOR (lface
)->contents
[i
] = Qunspecified
;
3319 lface
= global_lface
;
3321 xassert (LFACEP (lface
));
3322 check_lface (lface
);
3327 DEFUN ("internal-lisp-face-p", Finternal_lisp_face_p
,
3328 Sinternal_lisp_face_p
, 1, 2, 0,
3329 "Return non-nil if FACE names a face.\n\
3330 If optional second parameter FRAME is non-nil, check for the\n\
3331 existence of a frame-local face with name FACE on that frame.\n\
3332 Otherwise check for the existence of a global face.")
3334 Lisp_Object face
, frame
;
3340 CHECK_LIVE_FRAME (frame
, 1);
3341 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3344 lface
= lface_from_face_name (NULL
, face
, 0);
3350 DEFUN ("internal-copy-lisp-face", Finternal_copy_lisp_face
,
3351 Sinternal_copy_lisp_face
, 4, 4, 0,
3352 "Copy face FROM to TO.\n\
3353 If FRAME it t, copy the global face definition of FROM to the\n\
3354 global face definition of TO. Otherwise, copy the frame-local\n\
3355 definition of FROM on FRAME to the frame-local definition of TO\n\
3356 on NEW-FRAME, or FRAME if NEW-FRAME is nil.\n\
3359 (from
, to
, frame
, new_frame
)
3360 Lisp_Object from
, to
, frame
, new_frame
;
3362 Lisp_Object lface
, copy
;
3364 CHECK_SYMBOL (from
, 0);
3365 CHECK_SYMBOL (to
, 1);
3366 if (NILP (new_frame
))
3371 /* Copy global definition of FROM. We don't make copies of
3372 strings etc. because 20.2 didn't do it either. */
3373 lface
= lface_from_face_name (NULL
, from
, 1);
3374 copy
= Finternal_make_lisp_face (to
, Qnil
);
3378 /* Copy frame-local definition of FROM. */
3379 CHECK_LIVE_FRAME (frame
, 2);
3380 CHECK_LIVE_FRAME (new_frame
, 3);
3381 lface
= lface_from_face_name (XFRAME (frame
), from
, 1);
3382 copy
= Finternal_make_lisp_face (to
, new_frame
);
3385 bcopy (XVECTOR (lface
)->contents
, XVECTOR (copy
)->contents
,
3386 LFACE_VECTOR_SIZE
* sizeof (Lisp_Object
));
3392 DEFUN ("internal-set-lisp-face-attribute", Finternal_set_lisp_face_attribute
,
3393 Sinternal_set_lisp_face_attribute
, 3, 4, 0,
3394 "Set attribute ATTR of FACE to VALUE.\n\
3395 If optional argument FRAME is given, set the face attribute of face FACE\n\
3396 on that frame. If FRAME is t, set the attribute of the default for face\n\
3397 FACE (for new frames). If FRAME is omitted or nil, use the selected\n\
3399 (face
, attr
, value
, frame
)
3400 Lisp_Object face
, attr
, value
, frame
;
3403 Lisp_Object old_value
= Qnil
;
3404 /* Set 1 if ATTR is QCfont. */
3405 int font_attr_p
= 0;
3406 /* Set 1 if ATTR is one of font-related attributes other than QCfont. */
3407 int font_related_attr_p
= 0;
3409 CHECK_SYMBOL (face
, 0);
3410 CHECK_SYMBOL (attr
, 1);
3412 face
= resolve_face_name (face
);
3414 /* Set lface to the Lisp attribute vector of FACE. */
3416 lface
= lface_from_face_name (NULL
, face
, 1);
3420 frame
= selected_frame
;
3422 CHECK_LIVE_FRAME (frame
, 3);
3423 lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
3425 /* If a frame-local face doesn't exist yet, create one. */
3427 lface
= Finternal_make_lisp_face (face
, frame
);
3430 if (EQ (attr
, QCfamily
))
3432 if (!UNSPECIFIEDP (value
))
3434 CHECK_STRING (value
, 3);
3435 if (XSTRING (value
)->size
== 0)
3436 signal_error ("Invalid face family", value
);
3438 old_value
= LFACE_FAMILY (lface
);
3439 LFACE_FAMILY (lface
) = value
;
3440 font_related_attr_p
= 1;
3442 else if (EQ (attr
, QCheight
))
3444 if (!UNSPECIFIEDP (value
))
3446 CHECK_NUMBER (value
, 3);
3447 if (XINT (value
) <= 0)
3448 signal_error ("Invalid face height", value
);
3450 old_value
= LFACE_HEIGHT (lface
);
3451 LFACE_HEIGHT (lface
) = value
;
3452 font_related_attr_p
= 1;
3454 else if (EQ (attr
, QCweight
))
3456 if (!UNSPECIFIEDP (value
))
3458 CHECK_SYMBOL (value
, 3);
3459 if (face_numeric_weight (value
) < 0)
3460 signal_error ("Invalid face weight", value
);
3462 old_value
= LFACE_WEIGHT (lface
);
3463 LFACE_WEIGHT (lface
) = value
;
3464 font_related_attr_p
= 1;
3466 else if (EQ (attr
, QCslant
))
3468 if (!UNSPECIFIEDP (value
))
3470 CHECK_SYMBOL (value
, 3);
3471 if (face_numeric_slant (value
) < 0)
3472 signal_error ("Invalid face slant", value
);
3474 old_value
= LFACE_SLANT (lface
);
3475 LFACE_SLANT (lface
) = value
;
3476 font_related_attr_p
= 1;
3478 else if (EQ (attr
, QCunderline
))
3480 if (!UNSPECIFIEDP (value
))
3481 if ((SYMBOLP (value
)
3483 && !EQ (value
, Qnil
))
3484 /* Underline color. */
3486 && XSTRING (value
)->size
== 0))
3487 signal_error ("Invalid face underline", value
);
3489 old_value
= LFACE_UNDERLINE (lface
);
3490 LFACE_UNDERLINE (lface
) = value
;
3492 else if (EQ (attr
, QCoverline
))
3494 if (!UNSPECIFIEDP (value
))
3495 if ((SYMBOLP (value
)
3497 && !EQ (value
, Qnil
))
3498 /* Overline color. */
3500 && XSTRING (value
)->size
== 0))
3501 signal_error ("Invalid face overline", value
);
3503 old_value
= LFACE_OVERLINE (lface
);
3504 LFACE_OVERLINE (lface
) = value
;
3506 else if (EQ (attr
, QCstrike_through
))
3508 if (!UNSPECIFIEDP (value
))
3509 if ((SYMBOLP (value
)
3511 && !EQ (value
, Qnil
))
3512 /* Strike-through color. */
3514 && XSTRING (value
)->size
== 0))
3515 signal_error ("Invalid face strike-through", value
);
3517 old_value
= LFACE_STRIKE_THROUGH (lface
);
3518 LFACE_STRIKE_THROUGH (lface
) = value
;
3520 else if (EQ (attr
, QCbox
))
3524 /* Allow t meaning a simple box of width 1 in foreground color
3527 value
= make_number (1);
3529 if (UNSPECIFIEDP (value
))
3531 else if (NILP (value
))
3533 else if (INTEGERP (value
))
3534 valid_p
= XINT (value
) > 0;
3535 else if (STRINGP (value
))
3536 valid_p
= XSTRING (value
)->size
> 0;
3537 else if (CONSP (value
))
3553 if (EQ (k
, QCline_width
))
3555 if (!INTEGERP (v
) || XINT (v
) <= 0)
3558 else if (EQ (k
, QCcolor
))
3560 if (!STRINGP (v
) || XSTRING (v
)->size
== 0)
3563 else if (EQ (k
, QCstyle
))
3565 if (!EQ (v
, Qpressed_button
) && !EQ (v
, Qreleased_button
))
3572 valid_p
= NILP (tem
);
3578 signal_error ("Invalid face box", value
);
3580 old_value
= LFACE_BOX (lface
);
3581 LFACE_BOX (lface
) = value
;
3583 else if (EQ (attr
, QCinverse_video
)
3584 || EQ (attr
, QCreverse_video
))
3586 if (!UNSPECIFIEDP (value
))
3588 CHECK_SYMBOL (value
, 3);
3589 if (!EQ (value
, Qt
) && !NILP (value
))
3590 signal_error ("Invalid inverse-video face attribute value", value
);
3592 old_value
= LFACE_INVERSE (lface
);
3593 LFACE_INVERSE (lface
) = value
;
3595 else if (EQ (attr
, QCforeground
))
3597 if (!UNSPECIFIEDP (value
))
3599 /* Don't check for valid color names here because it depends
3600 on the frame (display) whether the color will be valid
3601 when the face is realized. */
3602 CHECK_STRING (value
, 3);
3603 if (XSTRING (value
)->size
== 0)
3604 signal_error ("Empty foreground color value", value
);
3606 old_value
= LFACE_FOREGROUND (lface
);
3607 LFACE_FOREGROUND (lface
) = value
;
3609 else if (EQ (attr
, QCbackground
))
3611 if (!UNSPECIFIEDP (value
))
3613 /* Don't check for valid color names here because it depends
3614 on the frame (display) whether the color will be valid
3615 when the face is realized. */
3616 CHECK_STRING (value
, 3);
3617 if (XSTRING (value
)->size
== 0)
3618 signal_error ("Empty background color value", value
);
3620 old_value
= LFACE_BACKGROUND (lface
);
3621 LFACE_BACKGROUND (lface
) = value
;
3623 else if (EQ (attr
, QCstipple
))
3625 #ifdef HAVE_X_WINDOWS
3626 if (!UNSPECIFIEDP (value
)
3628 && NILP (Fbitmap_spec_p (value
)))
3629 signal_error ("Invalid stipple attribute", value
);
3630 old_value
= LFACE_STIPPLE (lface
);
3631 LFACE_STIPPLE (lface
) = value
;
3632 #endif /* HAVE_X_WINDOWS */
3634 else if (EQ (attr
, QCwidth
))
3636 if (!UNSPECIFIEDP (value
))
3638 CHECK_SYMBOL (value
, 3);
3639 if (face_numeric_swidth (value
) < 0)
3640 signal_error ("Invalid face width", value
);
3642 old_value
= LFACE_SWIDTH (lface
);
3643 LFACE_SWIDTH (lface
) = value
;
3644 font_related_attr_p
= 1;
3646 else if (EQ (attr
, QCfont
))
3648 #ifdef HAVE_WINDOW_SYSTEM
3649 /* Set font-related attributes of the Lisp face from an
3654 CHECK_STRING (value
, 3);
3656 f
= SELECTED_FRAME ();
3658 f
= check_x_frame (frame
);
3660 /* VALUE may be a fontset name or an alias of fontset. In such
3661 a case, use the base fontset name. */
3662 tmp
= Fquery_fontset (value
, Qnil
);
3666 if (!set_lface_from_font_name (f
, lface
, value
, 1, 1))
3667 signal_error ("Invalid font or fontset name", value
);
3670 #endif /* HAVE_WINDOW_SYSTEM */
3672 else if (EQ (attr
, QCbold
))
3674 old_value
= LFACE_WEIGHT (lface
);
3675 LFACE_WEIGHT (lface
) = NILP (value
) ? Qnormal
: Qbold
;
3676 font_related_attr_p
= 1;
3678 else if (EQ (attr
, QCitalic
))
3680 old_value
= LFACE_SLANT (lface
);
3681 LFACE_SLANT (lface
) = NILP (value
) ? Qnormal
: Qitalic
;
3682 font_related_attr_p
= 1;
3685 signal_error ("Invalid face attribute name", attr
);
3687 if (font_related_attr_p
3688 && !UNSPECIFIEDP (value
))
3689 /* If a font-related attribute other than QCfont is specified, the
3690 original `font' attribute nor that of default face is useless
3691 to determine a new font. Thus, we set it to nil so that font
3692 selection mechanism doesn't use it. */
3693 LFACE_FONT (lface
) = Qnil
;
3695 /* Changing a named face means that all realized faces depending on
3696 that face are invalid. Since we cannot tell which realized faces
3697 depend on the face, make sure they are all removed. This is done
3698 by incrementing face_change_count. The next call to
3699 init_iterator will then free realized faces. */
3701 && (EQ (attr
, QCfont
)
3702 || NILP (Fequal (old_value
, value
))))
3704 ++face_change_count
;
3705 ++windows_or_buffers_changed
;
3708 #ifdef HAVE_WINDOW_SYSTEM
3711 && !UNSPECIFIEDP (value
)
3712 && NILP (Fequal (old_value
, value
)))
3718 if (EQ (face
, Qdefault
))
3720 /* Changed font-related attributes of the `default' face are
3721 reflected in changed `font' frame parameters. */
3722 if ((font_related_attr_p
|| font_attr_p
)
3723 && lface_fully_specified_p (XVECTOR (lface
)->contents
))
3724 set_font_frame_param (frame
, lface
);
3725 else if (EQ (attr
, QCforeground
))
3726 param
= Qforeground_color
;
3727 else if (EQ (attr
, QCbackground
))
3728 param
= Qbackground_color
;
3731 else if (EQ (face
, Qscroll_bar
))
3733 /* Changing the colors of `scroll-bar' sets frame parameters
3734 `scroll-bar-foreground' and `scroll-bar-background'. */
3735 if (EQ (attr
, QCforeground
))
3736 param
= Qscroll_bar_foreground
;
3737 else if (EQ (attr
, QCbackground
))
3738 param
= Qscroll_bar_background
;
3741 else if (EQ (face
, Qborder
))
3743 /* Changing background color of `border' sets frame parameter
3745 if (EQ (attr
, QCbackground
))
3746 param
= Qborder_color
;
3748 else if (EQ (face
, Qcursor
))
3750 /* Changing background color of `cursor' sets frame parameter
3752 if (EQ (attr
, QCbackground
))
3753 param
= Qcursor_color
;
3755 else if (EQ (face
, Qmouse
))
3757 /* Changing background color of `mouse' sets frame parameter
3759 if (EQ (attr
, QCbackground
))
3760 param
= Qmouse_color
;
3764 Fmodify_frame_parameters (frame
, Fcons (Fcons (param
, value
), Qnil
));
3767 #endif /* HAVE_WINDOW_SYSTEM */
3773 #ifdef HAVE_WINDOW_SYSTEM
3775 /* Set the `font' frame parameter of FRAME determined from `default'
3776 face attributes LFACE. If a face or fontset name is explicitely
3777 specfied in LFACE, use it as is. Otherwise, determine a font name
3778 from the other font-related atrributes of LFACE. In that case, if
3779 there's no matching font, signals an error. */
3782 set_font_frame_param (frame
, lface
)
3783 Lisp_Object frame
, lface
;
3785 struct frame
*f
= XFRAME (frame
);
3786 Lisp_Object font_name
;
3789 if (STRINGP (LFACE_FONT (lface
)))
3790 font_name
= LFACE_FONT (lface
);
3793 /* Choose a font name that reflects LFACE's attributes and has
3794 the registry and encoding pattern specified in the default
3795 fontset (3rd arg: -1) for ASCII characters (4th arg: 0). */
3796 font
= choose_face_font (f
, XVECTOR (lface
)->contents
, -1, 0);
3798 error ("No font matches the specified attribute");
3799 font_name
= build_string (font
);
3802 store_frame_param (f
, Qfont
, font_name
);
3806 /* Update the corresponding face when frame parameter PARAM on frame F
3807 has been assigned the value NEW_VALUE. */
3810 update_face_from_frame_parameter (f
, param
, new_value
)
3812 Lisp_Object param
, new_value
;
3816 /* If there are no faces yet, give up. This is the case when called
3817 from Fx_create_frame, and we do the necessary things later in
3818 face-set-after-frame-defaults. */
3819 if (NILP (f
->face_alist
))
3822 if (EQ (param
, Qforeground_color
))
3824 lface
= lface_from_face_name (f
, Qdefault
, 1);
3825 LFACE_FOREGROUND (lface
) = (STRINGP (new_value
)
3826 ? new_value
: Qunspecified
);
3827 realize_basic_faces (f
);
3829 else if (EQ (param
, Qbackground_color
))
3833 /* Changing the background color might change the background
3834 mode, so that we have to load new defface specs. Call
3835 frame-update-face-colors to do that. */
3836 XSETFRAME (frame
, f
);
3837 call1 (Qframe_update_face_colors
, frame
);
3839 lface
= lface_from_face_name (f
, Qdefault
, 1);
3840 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3841 ? new_value
: Qunspecified
);
3842 realize_basic_faces (f
);
3844 if (EQ (param
, Qborder_color
))
3846 lface
= lface_from_face_name (f
, Qborder
, 1);
3847 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3848 ? new_value
: Qunspecified
);
3850 else if (EQ (param
, Qcursor_color
))
3852 lface
= lface_from_face_name (f
, Qcursor
, 1);
3853 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3854 ? new_value
: Qunspecified
);
3856 else if (EQ (param
, Qmouse_color
))
3858 lface
= lface_from_face_name (f
, Qmouse
, 1);
3859 LFACE_BACKGROUND (lface
) = (STRINGP (new_value
)
3860 ? new_value
: Qunspecified
);
3865 /* Get the value of X resource RESOURCE, class CLASS for the display
3866 of frame FRAME. This is here because ordinary `x-get-resource'
3867 doesn't take a frame argument. */
3869 DEFUN ("internal-face-x-get-resource", Finternal_face_x_get_resource
,
3870 Sinternal_face_x_get_resource
, 3, 3, 0, "")
3871 (resource
, class, frame
)
3872 Lisp_Object resource
, class, frame
;
3874 Lisp_Object value
= Qnil
;
3876 CHECK_STRING (resource
, 0);
3877 CHECK_STRING (class, 1);
3878 CHECK_LIVE_FRAME (frame
, 2);
3880 value
= display_x_get_resource (FRAME_X_DISPLAY_INFO (XFRAME (frame
)),
3881 resource
, class, Qnil
, Qnil
);
3888 /* Return resource string VALUE as a boolean value, i.e. nil, or t.
3889 If VALUE is "on" or "true", return t. If VALUE is "off" or
3890 "false", return nil. Otherwise, if SIGNAL_P is non-zero, signal an
3891 error; if SIGNAL_P is zero, return 0. */
3894 face_boolean_x_resource_value (value
, signal_p
)
3898 Lisp_Object result
= make_number (0);
3900 xassert (STRINGP (value
));
3902 if (xstricmp (XSTRING (value
)->data
, "on") == 0
3903 || xstricmp (XSTRING (value
)->data
, "true") == 0)
3905 else if (xstricmp (XSTRING (value
)->data
, "off") == 0
3906 || xstricmp (XSTRING (value
)->data
, "false") == 0)
3908 else if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3909 result
= Qunspecified
;
3911 signal_error ("Invalid face attribute value from X resource", value
);
3917 DEFUN ("internal-set-lisp-face-attribute-from-resource",
3918 Finternal_set_lisp_face_attribute_from_resource
,
3919 Sinternal_set_lisp_face_attribute_from_resource
,
3921 (face
, attr
, value
, frame
)
3922 Lisp_Object face
, attr
, value
, frame
;
3924 CHECK_SYMBOL (face
, 0);
3925 CHECK_SYMBOL (attr
, 1);
3926 CHECK_STRING (value
, 2);
3928 if (xstricmp (XSTRING (value
)->data
, "unspecified") == 0)
3929 value
= Qunspecified
;
3930 else if (EQ (attr
, QCheight
))
3932 value
= Fstring_to_number (value
, make_number (10));
3933 if (XINT (value
) <= 0)
3934 signal_error ("Invalid face height from X resource", value
);
3936 else if (EQ (attr
, QCbold
) || EQ (attr
, QCitalic
))
3937 value
= face_boolean_x_resource_value (value
, 1);
3938 else if (EQ (attr
, QCweight
) || EQ (attr
, QCslant
) || EQ (attr
, QCwidth
))
3939 value
= intern (XSTRING (value
)->data
);
3940 else if (EQ (attr
, QCreverse_video
) || EQ (attr
, QCinverse_video
))
3941 value
= face_boolean_x_resource_value (value
, 1);
3942 else if (EQ (attr
, QCunderline
)
3943 || EQ (attr
, QCoverline
)
3944 || EQ (attr
, QCstrike_through
)
3945 || EQ (attr
, QCbox
))
3947 Lisp_Object boolean_value
;
3949 /* If the result of face_boolean_x_resource_value is t or nil,
3950 VALUE does NOT specify a color. */
3951 boolean_value
= face_boolean_x_resource_value (value
, 0);
3952 if (SYMBOLP (boolean_value
))
3953 value
= boolean_value
;
3956 return Finternal_set_lisp_face_attribute (face
, attr
, value
, frame
);
3959 #endif /* HAVE_WINDOW_SYSTEM */
3962 #ifdef HAVE_X_WINDOWS
3963 /***********************************************************************
3965 ***********************************************************************/
3967 #ifdef USE_X_TOOLKIT
3969 #include "../lwlib/lwlib-utils.h"
3971 /* Structure used to pass X resources to functions called via
3972 XtApplyToWidgets. */
3983 static void xm_apply_resources
P_ ((Widget
, XtPointer
));
3984 static void xm_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
3987 /* Set widget W's X resources from P which points to an x_resources
3988 structure. If W is a cascade button, apply resources to W's
3992 xm_apply_resources (w
, p
)
3997 struct x_resources
*res
= (struct x_resources
*) p
;
3999 XtSetValues (w
, res
->av
, res
->ac
);
4000 XtVaGetValues (w
, XmNsubMenuId
, &submenu
, NULL
);
4003 XtSetValues (submenu
, res
->av
, res
->ac
);
4004 XtApplyToWidgets (submenu
, xm_apply_resources
, p
);
4009 /* Set X resources of menu-widget WIDGET on frame F from face `menu'.
4010 This is the LessTif/Motif version. As of LessTif 0.88 it has the
4013 1. Setting the XmNfontList resource leads to an infinite loop
4014 somewhere in LessTif. */
4017 xm_set_menu_resources_from_menu_face (f
, widget
)
4027 lface
= lface_from_face_name (f
, Qmenu
, 1);
4028 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4030 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4032 XtSetArg (av
[ac
], XmNforeground
, face
->foreground
);
4036 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4038 XtSetArg (av
[ac
], XmNbackground
, face
->background
);
4042 /* If any font-related attribute of `menu' is set, set the font. */
4044 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4045 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4046 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4047 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4048 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4050 #if 0 /* Setting the font leads to an infinite loop somewhere
4051 in LessTif during geometry computation. */
4053 fe
= XmFontListEntryCreate ("menu_font", XmFONT_IS_FONT
, face
->font
);
4054 fl
= XmFontListAppendEntry (NULL
, fe
);
4055 XtSetArg (av
[ac
], XmNfontList
, fl
);
4060 xassert (ac
<= sizeof av
/ sizeof *av
);
4064 struct x_resources res
;
4066 XtSetValues (widget
, av
, ac
);
4067 res
.av
= av
, res
.ac
= ac
;
4068 XtApplyToWidgets (widget
, xm_apply_resources
, &res
);
4070 XmFontListFree (fl
);
4075 #endif /* USE_MOTIF */
4079 static void xl_apply_resources
P_ ((Widget
, XtPointer
));
4080 static void xl_set_menu_resources_from_menu_face
P_ ((struct frame
*, Widget
));
4083 /* Set widget W's resources from P which points to an x_resources
4087 xl_apply_resources (widget
, p
)
4091 struct x_resources
*res
= (struct x_resources
*) p
;
4092 XtSetValues (widget
, res
->av
, res
->ac
);
4096 /* On frame F, set X resources of menu-widget WIDGET from face `menu'.
4097 This is the Lucid version. */
4100 xl_set_menu_resources_from_menu_face (f
, widget
)
4109 lface
= lface_from_face_name (f
, Qmenu
, 1);
4110 face
= FACE_FROM_ID (f
, MENU_FACE_ID
);
4112 if (!UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
4114 XtSetArg (av
[ac
], XtNforeground
, face
->foreground
);
4118 if (!UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
4120 XtSetArg (av
[ac
], XtNbackground
, face
->background
);
4125 && (!UNSPECIFIEDP (LFACE_FAMILY (lface
))
4126 || !UNSPECIFIEDP (LFACE_SWIDTH (lface
))
4127 || !UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4128 || !UNSPECIFIEDP (LFACE_SLANT (lface
))
4129 || !UNSPECIFIEDP (LFACE_HEIGHT (lface
))))
4131 XtSetArg (av
[ac
], XtNfont
, face
->font
);
4137 struct x_resources res
;
4139 XtSetValues (widget
, av
, ac
);
4141 /* We must do children here in case we're handling a pop-up menu
4142 in which case WIDGET is a popup shell. XtApplyToWidgets
4143 is a function from lwlib. */
4144 res
.av
= av
, res
.ac
= ac
;
4145 XtApplyToWidgets (widget
, xl_apply_resources
, &res
);
4149 #endif /* USE_LUCID */
4152 /* On frame F, set X resources of menu-widget WIDGET from face `menu'. */
4155 x_set_menu_resources_from_menu_face (f
, widget
)
4159 /* Realized faces may have been removed on frame F, e.g. because of
4160 face attribute changes. Recompute them, if necessary, since we
4161 will need the `menu' face. */
4162 if (f
->face_cache
->used
== 0)
4163 recompute_basic_faces (f
);
4166 xl_set_menu_resources_from_menu_face (f
, widget
);
4169 xm_set_menu_resources_from_menu_face (f
, widget
);
4173 #endif /* USE_X_TOOLKIT */
4175 #endif /* HAVE_X_WINDOWS */
4179 DEFUN ("internal-get-lisp-face-attribute", Finternal_get_lisp_face_attribute
,
4180 Sinternal_get_lisp_face_attribute
,
4182 "Return face attribute KEYWORD of face SYMBOL.\n\
4183 If SYMBOL does not name a valid Lisp face or KEYWORD isn't a valid\n\
4184 face attribute name, signal an error.\n\
4185 If the optional argument FRAME is given, report on face FACE in that\n\
4186 frame. If FRAME is t, report on the defaults for face FACE (for new\n\
4187 frames). If FRAME is omitted or nil, use the selected frame.")
4188 (symbol
, keyword
, frame
)
4189 Lisp_Object symbol
, keyword
, frame
;
4191 Lisp_Object lface
, value
= Qnil
;
4193 CHECK_SYMBOL (symbol
, 0);
4194 CHECK_SYMBOL (keyword
, 1);
4197 lface
= lface_from_face_name (NULL
, symbol
, 1);
4201 frame
= selected_frame
;
4202 CHECK_LIVE_FRAME (frame
, 2);
4203 lface
= lface_from_face_name (XFRAME (frame
), symbol
, 1);
4206 if (EQ (keyword
, QCfamily
))
4207 value
= LFACE_FAMILY (lface
);
4208 else if (EQ (keyword
, QCheight
))
4209 value
= LFACE_HEIGHT (lface
);
4210 else if (EQ (keyword
, QCweight
))
4211 value
= LFACE_WEIGHT (lface
);
4212 else if (EQ (keyword
, QCslant
))
4213 value
= LFACE_SLANT (lface
);
4214 else if (EQ (keyword
, QCunderline
))
4215 value
= LFACE_UNDERLINE (lface
);
4216 else if (EQ (keyword
, QCoverline
))
4217 value
= LFACE_OVERLINE (lface
);
4218 else if (EQ (keyword
, QCstrike_through
))
4219 value
= LFACE_STRIKE_THROUGH (lface
);
4220 else if (EQ (keyword
, QCbox
))
4221 value
= LFACE_BOX (lface
);
4222 else if (EQ (keyword
, QCinverse_video
)
4223 || EQ (keyword
, QCreverse_video
))
4224 value
= LFACE_INVERSE (lface
);
4225 else if (EQ (keyword
, QCforeground
))
4226 value
= LFACE_FOREGROUND (lface
);
4227 else if (EQ (keyword
, QCbackground
))
4228 value
= LFACE_BACKGROUND (lface
);
4229 else if (EQ (keyword
, QCstipple
))
4230 value
= LFACE_STIPPLE (lface
);
4231 else if (EQ (keyword
, QCwidth
))
4232 value
= LFACE_SWIDTH (lface
);
4233 else if (EQ (keyword
, QCfont
))
4234 value
= LFACE_FONT (lface
);
4236 signal_error ("Invalid face attribute name", keyword
);
4242 DEFUN ("internal-lisp-face-attribute-values",
4243 Finternal_lisp_face_attribute_values
,
4244 Sinternal_lisp_face_attribute_values
, 1, 1, 0,
4245 "Return a list of valid discrete values for face attribute ATTR.\n\
4246 Value is nil if ATTR doesn't have a discrete set of valid values.")
4250 Lisp_Object result
= Qnil
;
4252 CHECK_SYMBOL (attr
, 0);
4254 if (EQ (attr
, QCweight
)
4255 || EQ (attr
, QCslant
)
4256 || EQ (attr
, QCwidth
))
4258 /* Extract permissible symbols from tables. */
4259 struct table_entry
*table
;
4262 if (EQ (attr
, QCweight
))
4263 table
= weight_table
, dim
= DIM (weight_table
);
4264 else if (EQ (attr
, QCslant
))
4265 table
= slant_table
, dim
= DIM (slant_table
);
4267 table
= swidth_table
, dim
= DIM (swidth_table
);
4269 for (i
= 0; i
< dim
; ++i
)
4271 Lisp_Object symbol
= *table
[i
].symbol
;
4272 Lisp_Object tail
= result
;
4275 && !EQ (XCAR (tail
), symbol
))
4279 result
= Fcons (symbol
, result
);
4282 else if (EQ (attr
, QCunderline
))
4283 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4284 else if (EQ (attr
, QCoverline
))
4285 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4286 else if (EQ (attr
, QCstrike_through
))
4287 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4288 else if (EQ (attr
, QCinverse_video
) || EQ (attr
, QCreverse_video
))
4289 result
= Fcons (Qt
, Fcons (Qnil
, Qnil
));
4295 DEFUN ("internal-merge-in-global-face", Finternal_merge_in_global_face
,
4296 Sinternal_merge_in_global_face
, 2, 2, 0,
4297 "Add attributes from frame-default definition of FACE to FACE on FRAME.")
4299 Lisp_Object face
, frame
;
4301 Lisp_Object global_lface
, local_lface
;
4302 CHECK_LIVE_FRAME (frame
, 1);
4303 global_lface
= lface_from_face_name (NULL
, face
, 1);
4304 local_lface
= lface_from_face_name (XFRAME (frame
), face
, 0);
4305 if (NILP (local_lface
))
4306 local_lface
= Finternal_make_lisp_face (face
, frame
);
4307 merge_face_vectors (XVECTOR (global_lface
)->contents
,
4308 XVECTOR (local_lface
)->contents
);
4313 /* The following function is implemented for compatibility with 20.2.
4314 The function is used in x-resolve-fonts when it is asked to
4315 return fonts with the same size as the font of a face. This is
4316 done in fontset.el. */
4318 DEFUN ("face-font", Fface_font
, Sface_font
, 1, 2, 0,
4319 "Return the font name of face FACE, or nil if it is unspecified.\n\
4320 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4321 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4322 The font default for a face is either nil, or a list\n\
4323 of the form (bold), (italic) or (bold italic).\n\
4324 If FRAME is omitted or nil, use the selected frame.")
4326 Lisp_Object face
, frame
;
4330 Lisp_Object result
= Qnil
;
4331 Lisp_Object lface
= lface_from_face_name (NULL
, face
, 1);
4333 if (!UNSPECIFIEDP (LFACE_WEIGHT (lface
))
4334 && !EQ (LFACE_WEIGHT (lface
), Qnormal
))
4335 result
= Fcons (Qbold
, result
);
4337 if (!NILP (LFACE_SLANT (lface
))
4338 && !EQ (LFACE_SLANT (lface
), Qnormal
))
4339 result
= Fcons (Qitalic
, result
);
4345 struct frame
*f
= frame_or_selected_frame (frame
, 1);
4346 int face_id
= lookup_named_face (f
, face
, 0);
4347 struct face
*face
= FACE_FROM_ID (f
, face_id
);
4348 return build_string (face
->font_name
);
4353 /* Compare face vectors V1 and V2 for equality. Value is non-zero if
4354 all attributes are `equal'. Tries to be fast because this function
4355 is called quite often. */
4358 lface_equal_p (v1
, v2
)
4359 Lisp_Object
*v1
, *v2
;
4363 for (i
= 1; i
< LFACE_VECTOR_SIZE
&& equal_p
; ++i
)
4365 Lisp_Object a
= v1
[i
];
4366 Lisp_Object b
= v2
[i
];
4368 /* Type can differ, e.g. when one attribute is unspecified, i.e. nil,
4369 and the other is specified. */
4370 equal_p
= XTYPE (a
) == XTYPE (b
);
4379 equal_p
= (XSTRING (a
)->size
== XSTRING (b
)->size
4380 && bcmp (XSTRING (a
)->data
, XSTRING (b
)->data
,
4381 XSTRING (a
)->size
) == 0);
4390 equal_p
= !NILP (Fequal (a
, b
));
4400 DEFUN ("internal-lisp-face-equal-p", Finternal_lisp_face_equal_p
,
4401 Sinternal_lisp_face_equal_p
, 2, 3, 0,
4402 "True if FACE1 and FACE2 are equal.\n\
4403 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4404 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4405 If FRAME is omitted or nil, use the selected frame.")
4406 (face1
, face2
, frame
)
4407 Lisp_Object face1
, face2
, frame
;
4411 Lisp_Object lface1
, lface2
;
4416 /* Don't use check_x_frame here because this function is called
4417 before X frames exist. At that time, if FRAME is nil,
4418 selected_frame will be used which is the frame dumped with
4419 Emacs. That frame is not an X frame. */
4420 f
= frame_or_selected_frame (frame
, 2);
4422 lface1
= lface_from_face_name (NULL
, face1
, 1);
4423 lface2
= lface_from_face_name (NULL
, face2
, 1);
4424 equal_p
= lface_equal_p (XVECTOR (lface1
)->contents
,
4425 XVECTOR (lface2
)->contents
);
4426 return equal_p
? Qt
: Qnil
;
4430 DEFUN ("internal-lisp-face-empty-p", Finternal_lisp_face_empty_p
,
4431 Sinternal_lisp_face_empty_p
, 1, 2, 0,
4432 "True if FACE has no attribute specified.\n\
4433 If the optional argument FRAME is given, report on face FACE in that frame.\n\
4434 If FRAME is t, report on the defaults for face FACE (for new frames).\n\
4435 If FRAME is omitted or nil, use the selected frame.")
4437 Lisp_Object face
, frame
;
4444 frame
= selected_frame
;
4445 CHECK_LIVE_FRAME (frame
, 0);
4449 lface
= lface_from_face_name (NULL
, face
, 1);
4451 lface
= lface_from_face_name (f
, face
, 1);
4453 for (i
= 1; i
< LFACE_VECTOR_SIZE
; ++i
)
4454 if (!UNSPECIFIEDP (XVECTOR (lface
)->contents
[i
]))
4457 return i
== LFACE_VECTOR_SIZE
? Qt
: Qnil
;
4461 DEFUN ("frame-face-alist", Fframe_face_alist
, Sframe_face_alist
,
4463 "Return an alist of frame-local faces defined on FRAME.\n\
4464 For internal use only.")
4468 struct frame
*f
= frame_or_selected_frame (frame
, 0);
4469 return f
->face_alist
;
4473 /* Return a hash code for Lisp string STRING with case ignored. Used
4474 below in computing a hash value for a Lisp face. */
4476 static INLINE
unsigned
4477 hash_string_case_insensitive (string
)
4482 xassert (STRINGP (string
));
4483 for (s
= XSTRING (string
)->data
; *s
; ++s
)
4484 hash
= (hash
<< 1) ^ tolower (*s
);
4489 /* Return a hash code for face attribute vector V. */
4491 static INLINE
unsigned
4495 return (hash_string_case_insensitive (v
[LFACE_FAMILY_INDEX
])
4496 ^ hash_string_case_insensitive (v
[LFACE_FOREGROUND_INDEX
])
4497 ^ hash_string_case_insensitive (v
[LFACE_BACKGROUND_INDEX
])
4498 ^ XFASTINT (v
[LFACE_WEIGHT_INDEX
])
4499 ^ XFASTINT (v
[LFACE_SLANT_INDEX
])
4500 ^ XFASTINT (v
[LFACE_SWIDTH_INDEX
])
4501 ^ XFASTINT (v
[LFACE_HEIGHT_INDEX
]));
4505 /* Return non-zero if LFACE1 and LFACE2 specify the same font (without
4506 considering charsets/registries). They do if they specify the same
4507 family, point size, weight, width, slant, and fontset. Both LFACE1
4508 and LFACE2 must be fully-specified. */
4511 lface_same_font_attributes_p (lface1
, lface2
)
4512 Lisp_Object
*lface1
, *lface2
;
4514 xassert (lface_fully_specified_p (lface1
)
4515 && lface_fully_specified_p (lface2
));
4516 return (xstricmp (XSTRING (lface1
[LFACE_FAMILY_INDEX
])->data
,
4517 XSTRING (lface2
[LFACE_FAMILY_INDEX
])->data
) == 0
4518 && (XFASTINT (lface1
[LFACE_HEIGHT_INDEX
])
4519 == XFASTINT (lface2
[LFACE_HEIGHT_INDEX
]))
4520 && EQ (lface1
[LFACE_SWIDTH_INDEX
], lface2
[LFACE_SWIDTH_INDEX
])
4521 && EQ (lface1
[LFACE_WEIGHT_INDEX
], lface2
[LFACE_WEIGHT_INDEX
])
4522 && EQ (lface1
[LFACE_SLANT_INDEX
], lface2
[LFACE_SLANT_INDEX
])
4523 && (EQ (lface1
[LFACE_FONT_INDEX
], lface2
[LFACE_FONT_INDEX
])
4524 || (STRINGP (lface1
[LFACE_FONT_INDEX
])
4525 && STRINGP (lface2
[LFACE_FONT_INDEX
])
4526 && xstricmp (XSTRING (lface1
[LFACE_FONT_INDEX
])->data
,
4527 XSTRING (lface2
[LFACE_FONT_INDEX
])->data
))));
4532 /***********************************************************************
4534 ***********************************************************************/
4536 /* Allocate and return a new realized face for Lisp face attribute
4539 static struct face
*
4540 make_realized_face (attr
)
4543 struct face
*face
= (struct face
*) xmalloc (sizeof *face
);
4544 bzero (face
, sizeof *face
);
4545 face
->ascii_face
= face
;
4546 bcopy (attr
, face
->lface
, sizeof face
->lface
);
4551 /* Free realized face FACE, including its X resources. FACE may
4555 free_realized_face (f
, face
)
4561 #ifdef HAVE_WINDOW_SYSTEM
4562 if (FRAME_WINDOW_P (f
))
4564 /* Free fontset of FACE if it is ASCII face. */
4565 if (face
->fontset
>= 0 && face
== face
->ascii_face
)
4566 free_face_fontset (f
, face
);
4569 x_free_gc (f
, face
->gc
);
4573 free_face_colors (f
, face
);
4574 x_destroy_bitmap (f
, face
->stipple
);
4576 #endif /* HAVE_WINDOW_SYSTEM */
4583 /* Prepare face FACE for subsequent display on frame F. This
4584 allocated GCs if they haven't been allocated yet or have been freed
4585 by clearing the face cache. */
4588 prepare_face_for_display (f
, face
)
4592 #ifdef HAVE_WINDOW_SYSTEM
4593 xassert (FRAME_WINDOW_P (f
));
4598 unsigned long mask
= GCForeground
| GCBackground
| GCGraphicsExposures
;
4600 xgcv
.foreground
= face
->foreground
;
4601 xgcv
.background
= face
->background
;
4602 #ifdef HAVE_X_WINDOWS
4603 xgcv
.graphics_exposures
= False
;
4605 /* The font of FACE may be null if we couldn't load it. */
4608 #ifdef HAVE_X_WINDOWS
4609 xgcv
.font
= face
->font
->fid
;
4612 xgcv
.font
= face
->font
;
4618 #ifdef HAVE_X_WINDOWS
4621 xgcv
.fill_style
= FillOpaqueStippled
;
4622 xgcv
.stipple
= x_bitmap_pixmap (f
, face
->stipple
);
4623 mask
|= GCFillStyle
| GCStipple
;
4626 face
->gc
= x_create_gc (f
, mask
, &xgcv
);
4629 #endif /* HAVE_WINDOW_SYSTEM */
4633 /***********************************************************************
4635 ***********************************************************************/
4637 /* Return a new face cache for frame F. */
4639 static struct face_cache
*
4643 struct face_cache
*c
;
4646 c
= (struct face_cache
*) xmalloc (sizeof *c
);
4647 bzero (c
, sizeof *c
);
4648 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4649 c
->buckets
= (struct face
**) xmalloc (size
);
4650 bzero (c
->buckets
, size
);
4652 c
->faces_by_id
= (struct face
**) xmalloc (c
->size
* sizeof *c
->faces_by_id
);
4658 /* Clear out all graphics contexts for all realized faces, except for
4659 the basic faces. This should be done from time to time just to avoid
4660 keeping too many graphics contexts that are no longer needed. */
4664 struct face_cache
*c
;
4666 if (c
&& FRAME_WINDOW_P (c
->f
))
4668 #ifdef HAVE_WINDOW_SYSTEM
4670 for (i
= BASIC_FACE_ID_SENTINEL
; i
< c
->used
; ++i
)
4672 struct face
*face
= c
->faces_by_id
[i
];
4673 if (face
&& face
->gc
)
4675 x_free_gc (c
->f
, face
->gc
);
4679 #endif /* HAVE_WINDOW_SYSTEM */
4684 /* Free all realized faces in face cache C, including basic faces. C
4685 may be null. If faces are freed, make sure the frame's current
4686 matrix is marked invalid, so that a display caused by an expose
4687 event doesn't try to use faces we destroyed. */
4690 free_realized_faces (c
)
4691 struct face_cache
*c
;
4696 struct frame
*f
= c
->f
;
4698 /* We must block input here because we can't process X events
4699 safely while only some faces are freed, or when the frame's
4700 current matrix still references freed faces. */
4703 for (i
= 0; i
< c
->used
; ++i
)
4705 free_realized_face (f
, c
->faces_by_id
[i
]);
4706 c
->faces_by_id
[i
] = NULL
;
4710 size
= FACE_CACHE_BUCKETS_SIZE
* sizeof *c
->buckets
;
4711 bzero (c
->buckets
, size
);
4713 /* Must do a thorough redisplay the next time. Mark current
4714 matrices as invalid because they will reference faces freed
4715 above. This function is also called when a frame is
4716 destroyed. In this case, the root window of F is nil. */
4717 if (WINDOWP (f
->root_window
))
4719 clear_current_matrices (f
);
4720 ++windows_or_buffers_changed
;
4728 /* Free all faces realized for multibyte characters on frame F that
4732 free_realized_multibyte_face (f
, fontset
)
4736 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4740 /* We must block input here because we can't process X events safely
4741 while only some faces are freed, or when the frame's current
4742 matrix still references freed faces. */
4745 for (i
= 0; i
< cache
->used
; i
++)
4747 face
= cache
->faces_by_id
[i
];
4749 && face
!= face
->ascii_face
4750 && face
->fontset
== fontset
)
4752 uncache_face (cache
, face
);
4753 free_realized_face (f
, face
);
4757 /* Must do a thorough redisplay the next time. Mark current
4758 matrices as invalid because they will reference faces freed
4759 above. This function is also called when a frame is destroyed.
4760 In this case, the root window of F is nil. */
4761 if (WINDOWP (f
->root_window
))
4763 clear_current_matrices (f
);
4764 ++windows_or_buffers_changed
;
4771 /* Free all realized faces on FRAME or on all frames if FRAME is nil.
4772 This is done after attributes of a named face have been changed,
4773 because we can't tell which realized faces depend on that face. */
4776 free_all_realized_faces (frame
)
4782 FOR_EACH_FRAME (rest
, frame
)
4783 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4786 free_realized_faces (FRAME_FACE_CACHE (XFRAME (frame
)));
4790 /* Free face cache C and faces in it, including their X resources. */
4794 struct face_cache
*c
;
4798 free_realized_faces (c
);
4800 xfree (c
->faces_by_id
);
4806 /* Cache realized face FACE in face cache C. HASH is the hash value
4807 of FACE. If FACE->fontset >= 0, add the new face to the end of the
4808 collision list of the face hash table of C. This is done because
4809 otherwise lookup_face would find FACE for every character, even if
4810 faces with the same attributes but for specific characters exist. */
4813 cache_face (c
, face
, hash
)
4814 struct face_cache
*c
;
4818 int i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4822 if (face
->fontset
>= 0)
4824 struct face
*last
= c
->buckets
[i
];
4835 c
->buckets
[i
] = face
;
4836 face
->prev
= face
->next
= NULL
;
4842 face
->next
= c
->buckets
[i
];
4844 face
->next
->prev
= face
;
4845 c
->buckets
[i
] = face
;
4848 /* Find a free slot in C->faces_by_id and use the index of the free
4849 slot as FACE->id. */
4850 for (i
= 0; i
< c
->used
; ++i
)
4851 if (c
->faces_by_id
[i
] == NULL
)
4855 /* Maybe enlarge C->faces_by_id. */
4856 if (i
== c
->used
&& c
->used
== c
->size
)
4858 int new_size
= 2 * c
->size
;
4859 int sz
= new_size
* sizeof *c
->faces_by_id
;
4860 c
->faces_by_id
= (struct face
**) xrealloc (c
->faces_by_id
, sz
);
4865 /* Check that FACE got a unique id. */
4870 for (j
= n
= 0; j
< FACE_CACHE_BUCKETS_SIZE
; ++j
)
4871 for (face
= c
->buckets
[j
]; face
; face
= face
->next
)
4877 #endif /* GLYPH_DEBUG */
4879 c
->faces_by_id
[i
] = face
;
4885 /* Remove face FACE from cache C. */
4888 uncache_face (c
, face
)
4889 struct face_cache
*c
;
4892 int i
= face
->hash
% FACE_CACHE_BUCKETS_SIZE
;
4895 face
->prev
->next
= face
->next
;
4897 c
->buckets
[i
] = face
->next
;
4900 face
->next
->prev
= face
->prev
;
4902 c
->faces_by_id
[face
->id
] = NULL
;
4903 if (face
->id
== c
->used
)
4908 /* Look up a realized face with face attributes ATTR in the face cache
4909 of frame F. The face will be used to display character C. Value
4910 is the ID of the face found. If no suitable face is found, realize
4911 a new one. In that case, if C is a multibyte character, BASE_FACE
4912 is a face that has the same attributes. */
4915 lookup_face (f
, attr
, c
, base_face
)
4919 struct face
*base_face
;
4921 struct face_cache
*cache
= FRAME_FACE_CACHE (f
);
4926 xassert (cache
!= NULL
);
4927 check_lface_attrs (attr
);
4929 /* Look up ATTR in the face cache. */
4930 hash
= lface_hash (attr
);
4931 i
= hash
% FACE_CACHE_BUCKETS_SIZE
;
4933 for (face
= cache
->buckets
[i
]; face
; face
= face
->next
)
4934 if (face
->hash
== hash
4935 && (!FRAME_WINDOW_P (f
)
4936 || FACE_SUITABLE_FOR_CHAR_P (face
, c
))
4937 && lface_equal_p (face
->lface
, attr
))
4940 /* If not found, realize a new face. */
4942 face
= realize_face (cache
, attr
, c
, base_face
, -1);
4945 xassert (face
== FACE_FROM_ID (f
, face
->id
));
4947 /* When this function is called from face_for_char (in this case, C is
4948 a multibyte character), a fontset of a face returned by
4949 realize_face is not yet set, i.e. FACE_SUITABLE_FOR_CHAR_P (FACE,
4950 C) is not sutisfied. The fontset is set for this face by
4951 face_for_char later. */
4953 if (FRAME_WINDOW_P (f
))
4954 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
4956 #endif /* GLYPH_DEBUG */
4962 /* Return the face id of the realized face for named face SYMBOL on
4963 frame F suitable for displaying character C. */
4966 lookup_named_face (f
, symbol
, c
)
4971 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
4972 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
4973 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4975 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
4976 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
4977 merge_face_vectors (symbol_attrs
, attrs
);
4978 return lookup_face (f
, attrs
, c
, NULL
);
4982 /* Return the ID of the realized ASCII face of Lisp face with ID
4983 LFACE_ID on frame F. Value is -1 if LFACE_ID isn't valid. */
4986 ascii_face_of_lisp_face (f
, lface_id
)
4992 if (lface_id
>= 0 && lface_id
< lface_id_to_name_size
)
4994 Lisp_Object face_name
= lface_id_to_name
[lface_id
];
4995 face_id
= lookup_named_face (f
, face_name
, 0);
5004 /* Return a face for charset ASCII that is like the face with id
5005 FACE_ID on frame F, but has a font that is STEPS steps smaller.
5006 STEPS < 0 means larger. Value is the id of the face. */
5009 smaller_face (f
, face_id
, steps
)
5013 #ifdef HAVE_WINDOW_SYSTEM
5015 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5016 int pt
, last_pt
, last_height
;
5019 struct face
*new_face
;
5021 /* If not called for an X frame, just return the original face. */
5022 if (FRAME_TERMCAP_P (f
))
5025 /* Try in increments of 1/2 pt. */
5026 delta
= steps
< 0 ? 5 : -5;
5027 steps
= abs (steps
);
5029 face
= FACE_FROM_ID (f
, face_id
);
5030 bcopy (face
->lface
, attrs
, sizeof attrs
);
5031 pt
= last_pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5032 new_face_id
= face_id
;
5033 last_height
= FONT_HEIGHT (face
->font
);
5037 /* Give up if we cannot find a font within 10pt. */
5038 && abs (last_pt
- pt
) < 100)
5040 /* Look up a face for a slightly smaller/larger font. */
5042 attrs
[LFACE_HEIGHT_INDEX
] = make_number (pt
);
5043 new_face_id
= lookup_face (f
, attrs
, 0, NULL
);
5044 new_face
= FACE_FROM_ID (f
, new_face_id
);
5046 /* If height changes, count that as one step. */
5047 if (FONT_HEIGHT (new_face
->font
) != last_height
)
5050 last_height
= FONT_HEIGHT (new_face
->font
);
5057 #else /* not HAVE_WINDOW_SYSTEM */
5061 #endif /* not HAVE_WINDOW_SYSTEM */
5065 /* Return a face for charset ASCII that is like the face with id
5066 FACE_ID on frame F, but has height HEIGHT. */
5069 face_with_height (f
, face_id
, height
)
5074 #ifdef HAVE_WINDOW_SYSTEM
5076 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5078 if (FRAME_TERMCAP_P (f
)
5082 face
= FACE_FROM_ID (f
, face_id
);
5083 bcopy (face
->lface
, attrs
, sizeof attrs
);
5084 attrs
[LFACE_HEIGHT_INDEX
] = make_number (height
);
5085 face_id
= lookup_face (f
, attrs
, 0, NULL
);
5086 #endif /* HAVE_WINDOW_SYSTEM */
5091 /* Return the face id of the realized face for named face SYMBOL on
5092 frame F suitable for displaying character C, and use attributes of
5093 the face FACE_ID for attributes that aren't completely specified by
5094 SYMBOL. This is like lookup_named_face, except that the default
5095 attributes come from FACE_ID, not from the default face. FACE_ID
5096 is assumed to be already realized. */
5099 lookup_derived_face (f
, symbol
, c
, face_id
)
5105 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5106 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5107 struct face
*default_face
= FACE_FROM_ID (f
, face_id
);
5112 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5113 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
5114 merge_face_vectors (symbol_attrs
, attrs
);
5115 return lookup_face (f
, attrs
, c
, default_face
);
5120 /***********************************************************************
5122 ***********************************************************************/
5124 DEFUN ("internal-set-font-selection-order",
5125 Finternal_set_font_selection_order
,
5126 Sinternal_set_font_selection_order
, 1, 1, 0,
5127 "Set font selection order for face font selection to ORDER.\n\
5128 ORDER must be a list of length 4 containing the symbols `:width',\n\
5129 `:height', `:weight', and `:slant'. Face attributes appearing\n\
5130 first in ORDER are matched first, e.g. if `:height' appears before\n\
5131 `:weight' in ORDER, font selection first tries to find a font with\n\
5132 a suitable height, and then tries to match the font weight.\n\
5141 CHECK_LIST (order
, 0);
5142 bzero (indices
, sizeof indices
);
5146 CONSP (list
) && i
< DIM (indices
);
5147 list
= XCDR (list
), ++i
)
5149 Lisp_Object attr
= XCAR (list
);
5152 if (EQ (attr
, QCwidth
))
5154 else if (EQ (attr
, QCheight
))
5155 xlfd
= XLFD_POINT_SIZE
;
5156 else if (EQ (attr
, QCweight
))
5158 else if (EQ (attr
, QCslant
))
5163 if (indices
[i
] != 0)
5169 || i
!= DIM (indices
)
5174 signal_error ("Invalid font sort order", order
);
5176 if (bcmp (indices
, font_sort_order
, sizeof indices
) != 0)
5178 bcopy (indices
, font_sort_order
, sizeof font_sort_order
);
5179 free_all_realized_faces (Qnil
);
5186 DEFUN ("internal-set-alternative-font-family-alist",
5187 Finternal_set_alternative_font_family_alist
,
5188 Sinternal_set_alternative_font_family_alist
, 1, 1, 0,
5189 "Define alternative font families to try in face font selection.\n\
5190 ALIST is an alist of (FAMILY ALTERNATIVE1 ALTERNATIVE2 ...) entries.\n\
5191 Each ALTERNATIVE is tried in order if no fonts of font family FAMILY can\n\
5192 be found. Value is ALIST.")
5196 CHECK_LIST (alist
, 0);
5197 Vface_alternative_font_family_alist
= alist
;
5198 free_all_realized_faces (Qnil
);
5203 #ifdef HAVE_WINDOW_SYSTEM
5205 /* Value is non-zero if FONT is the name of a scalable font. The
5206 X11R6 XLFD spec says that point size, pixel size, and average width
5207 are zero for scalable fonts. Intlfonts contain at least one
5208 scalable font ("*-muleindian-1") for which this isn't true, so we
5209 just test average width. */
5212 font_scalable_p (font
)
5213 struct font_name
*font
;
5215 char *s
= font
->fields
[XLFD_AVGWIDTH
];
5216 return (*s
== '0' && *(s
+ 1) == '\0')
5218 /* Windows implementation of XLFD is slightly broken for backward
5219 compatibility with previous broken versions, so test for
5220 wildcards as well as 0. */
5227 /* Value is non-zero if FONT1 is a better match for font attributes
5228 VALUES than FONT2. VALUES is an array of face attribute values in
5229 font sort order. COMPARE_PT_P zero means don't compare point
5233 better_font_p (values
, font1
, font2
, compare_pt_p
)
5235 struct font_name
*font1
, *font2
;
5240 for (i
= 0; i
< 4; ++i
)
5242 int xlfd_idx
= font_sort_order
[i
];
5244 if (compare_pt_p
|| xlfd_idx
!= XLFD_POINT_SIZE
)
5246 int delta1
= abs (values
[i
] - font1
->numeric
[xlfd_idx
]);
5247 int delta2
= abs (values
[i
] - font2
->numeric
[xlfd_idx
]);
5249 if (delta1
> delta2
)
5251 else if (delta1
< delta2
)
5255 /* The difference may be equal because, e.g., the face
5256 specifies `italic' but we have only `regular' and
5257 `oblique'. Prefer `oblique' in this case. */
5258 if ((xlfd_idx
== XLFD_WEIGHT
|| xlfd_idx
== XLFD_SLANT
)
5259 && font1
->numeric
[xlfd_idx
] > values
[i
]
5260 && font2
->numeric
[xlfd_idx
] < values
[i
])
5272 /* Value is non-zero if FONT is an exact match for face attributes in
5273 SPECIFIED. SPECIFIED is an array of face attribute values in font
5277 exact_face_match_p (specified
, font
)
5279 struct font_name
*font
;
5283 for (i
= 0; i
< 4; ++i
)
5284 if (specified
[i
] != font
->numeric
[font_sort_order
[i
]])
5291 /* Value is the name of a scaled font, generated from scalable font
5292 FONT on frame F. SPECIFIED_PT is the point-size to scale FONT to.
5293 Value is allocated from heap. */
5296 build_scalable_font_name (f
, font
, specified_pt
)
5298 struct font_name
*font
;
5301 char point_size
[20], pixel_size
[20];
5303 double resy
= FRAME_X_DISPLAY_INFO (f
)->resy
;
5306 /* If scalable font is for a specific resolution, compute
5307 the point size we must specify from the resolution of
5308 the display and the specified resolution of the font. */
5309 if (font
->numeric
[XLFD_RESY
] != 0)
5311 pt
= resy
/ font
->numeric
[XLFD_RESY
] * specified_pt
+ 0.5;
5312 pixel_value
= font
->numeric
[XLFD_RESY
] / 720.0 * pt
;
5317 pixel_value
= resy
/ 720.0 * pt
;
5320 /* Set point size of the font. */
5321 sprintf (point_size
, "%d", (int) pt
);
5322 font
->fields
[XLFD_POINT_SIZE
] = point_size
;
5323 font
->numeric
[XLFD_POINT_SIZE
] = pt
;
5325 /* Set pixel size. */
5326 sprintf (pixel_size
, "%d", pixel_value
);
5327 font
->fields
[XLFD_PIXEL_SIZE
] = pixel_size
;
5328 font
->numeric
[XLFD_PIXEL_SIZE
] = pixel_value
;
5330 /* If font doesn't specify its resolution, use the
5331 resolution of the display. */
5332 if (font
->numeric
[XLFD_RESY
] == 0)
5335 sprintf (buffer
, "%d", (int) resy
);
5336 font
->fields
[XLFD_RESY
] = buffer
;
5337 font
->numeric
[XLFD_RESY
] = resy
;
5340 if (strcmp (font
->fields
[XLFD_RESX
], "0") == 0)
5343 int resx
= FRAME_X_DISPLAY_INFO (f
)->resx
;
5344 sprintf (buffer
, "%d", resx
);
5345 font
->fields
[XLFD_RESX
] = buffer
;
5346 font
->numeric
[XLFD_RESX
] = resx
;
5349 return build_font_name (font
);
5353 /* Value is non-zero if we are allowed to use scalable font FONT. We
5354 can't run a Lisp function here since this function may be called
5355 with input blocked. */
5358 may_use_scalable_font_p (font
, name
)
5359 struct font_name
*font
;
5362 if (EQ (Vscalable_fonts_allowed
, Qt
))
5364 else if (CONSP (Vscalable_fonts_allowed
))
5366 Lisp_Object tail
, regexp
;
5368 for (tail
= Vscalable_fonts_allowed
; CONSP (tail
); tail
= XCDR (tail
))
5370 regexp
= XCAR (tail
);
5371 if (STRINGP (regexp
)
5372 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
5380 #endif /* SCALABLE_FONTS != 0 */
5383 /* Return the name of the best matching font for face attributes
5384 ATTRS in the array of font_name structures FONTS which contains
5385 NFONTS elements. Value is a font name which is allocated from
5386 the heap. FONTS is freed by this function. */
5389 best_matching_font (f
, attrs
, fonts
, nfonts
)
5392 struct font_name
*fonts
;
5396 struct font_name
*best
;
5404 /* Make specified font attributes available in `specified',
5405 indexed by sort order. */
5406 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
5408 int xlfd_idx
= font_sort_order
[i
];
5410 if (xlfd_idx
== XLFD_SWIDTH
)
5411 specified
[i
] = face_numeric_swidth (attrs
[LFACE_SWIDTH_INDEX
]);
5412 else if (xlfd_idx
== XLFD_POINT_SIZE
)
5413 specified
[i
] = pt
= XFASTINT (attrs
[LFACE_HEIGHT_INDEX
]);
5414 else if (xlfd_idx
== XLFD_WEIGHT
)
5415 specified
[i
] = face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
5416 else if (xlfd_idx
== XLFD_SLANT
)
5417 specified
[i
] = face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
5427 /* Start with the first non-scalable font in the list. */
5428 for (i
= 0; i
< nfonts
; ++i
)
5429 if (!font_scalable_p (fonts
+ i
))
5432 /* Find the best match among the non-scalable fonts. */
5437 for (i
= 1; i
< nfonts
; ++i
)
5438 if (!font_scalable_p (fonts
+ i
)
5439 && better_font_p (specified
, fonts
+ i
, best
, 1))
5443 exact_p
= exact_face_match_p (specified
, best
);
5452 /* Unless we found an exact match among non-scalable fonts, see if
5453 we can find a better match among scalable fonts. */
5456 /* A scalable font is better if
5458 1. its weight, slant, swidth attributes are better, or.
5460 2. the best non-scalable font doesn't have the required
5461 point size, and the scalable fonts weight, slant, swidth
5464 int non_scalable_has_exact_height_p
;
5466 if (best
&& best
->numeric
[XLFD_POINT_SIZE
] == pt
)
5467 non_scalable_has_exact_height_p
= 1;
5469 non_scalable_has_exact_height_p
= 0;
5471 for (i
= 0; i
< nfonts
; ++i
)
5472 if (font_scalable_p (fonts
+ i
))
5475 || better_font_p (specified
, fonts
+ i
, best
, 0)
5476 || (!non_scalable_has_exact_height_p
5477 && !better_font_p (specified
, best
, fonts
+ i
, 0)))
5482 if (font_scalable_p (best
))
5483 font_name
= build_scalable_font_name (f
, best
, pt
);
5485 font_name
= build_font_name (best
);
5487 #else /* !SCALABLE_FONTS */
5489 /* Find the best non-scalable font. */
5492 for (i
= 1; i
< nfonts
; ++i
)
5494 xassert (!font_scalable_p (fonts
+ i
));
5495 if (better_font_p (specified
, fonts
+ i
, best
, 1))
5499 font_name
= build_font_name (best
);
5501 #endif /* !SCALABLE_FONTS */
5503 /* Free font_name structures. */
5504 free_font_names (fonts
, nfonts
);
5510 /* Try to get a list of fonts on frame F with font family FAMILY and
5511 registry/encoding REGISTRY. Return in *FONTS a pointer to a vector
5512 of font_name structures for the fonts matched. Value is the number
5516 try_font_list (f
, attrs
, pattern
, family
, registry
, fonts
)
5519 Lisp_Object pattern
, family
, registry
;
5520 struct font_name
**fonts
;
5524 if (NILP (family
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
5525 family
= attrs
[LFACE_FAMILY_INDEX
];
5527 nfonts
= font_list (f
, pattern
, family
, registry
, fonts
);
5529 if (nfonts
== 0 && !NILP (family
))
5533 /* Try alternative font families from
5534 Vface_alternative_font_family_alist. */
5535 alter
= Fassoc (family
, Vface_alternative_font_family_alist
);
5537 for (alter
= XCDR (alter
);
5538 CONSP (alter
) && nfonts
== 0;
5539 alter
= XCDR (alter
))
5541 if (STRINGP (XCAR (alter
)))
5542 nfonts
= font_list (f
, Qnil
, XCAR (alter
), registry
, fonts
);
5545 /* Try font family of the default face or "fixed". */
5548 struct face
*dflt
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5550 family
= dflt
->lface
[LFACE_FAMILY_INDEX
];
5552 family
= build_string ("fixed");
5553 nfonts
= font_list (f
, Qnil
, family
, registry
, fonts
);
5556 /* Try any family with the given registry. */
5558 nfonts
= font_list (f
, Qnil
, Qnil
, registry
, fonts
);
5565 /* Return the fontset id of the base fontset name or alias name given
5566 by the fontset attribute of ATTRS. Value is -1 if the fontset
5567 attribute of ATTRS doesn't name a fontset. */
5570 face_fontset (attrs
)
5576 name
= attrs
[LFACE_FONT_INDEX
];
5577 if (!STRINGP (name
))
5579 return fs_query_fontset (name
, 0);
5583 /* Choose a name of font to use on frame F to display character C with
5584 Lisp face attributes specified by ATTRS. The font name is
5585 determined by the font-related attributes in ATTRS and the name
5586 pattern for C in FONTSET. Value is the font name which is
5587 allocated from the heap and must be freed by the caller, or NULL if
5588 we can get no information about the font name of C. It is assured
5589 that we always get some information for a single byte
5593 choose_face_font (f
, attrs
, fontset
, c
)
5598 Lisp_Object pattern
;
5599 char *font_name
= NULL
;
5600 struct font_name
*fonts
;
5603 /* Get (foundry and) family name and registry (and encoding) name of
5605 pattern
= fontset_font_pattern (f
, fontset
, c
);
5608 xassert (!SINGLE_BYTE_CHAR_P (c
));
5611 /* If what we got is a name pattern, return it. */
5612 if (STRINGP (pattern
))
5613 return xstrdup (XSTRING (pattern
)->data
);
5615 /* Family name may be specified both in ATTRS and car part of
5616 PATTERN. The former has higher priority if C is a single byte
5618 if (STRINGP (attrs
[LFACE_FAMILY_INDEX
])
5619 && SINGLE_BYTE_CHAR_P (c
))
5620 XCAR (pattern
) = Qnil
;
5622 /* Get a list of fonts matching that pattern and choose the
5623 best match for the specified face attributes from it. */
5624 nfonts
= try_font_list (f
, attrs
, Qnil
, XCAR (pattern
), XCDR (pattern
),
5626 font_name
= best_matching_font (f
, attrs
, fonts
, nfonts
);
5630 #endif /* HAVE_WINDOW_SYSTEM */
5634 /***********************************************************************
5636 ***********************************************************************/
5638 /* Realize basic faces on frame F. Value is zero if frame parameters
5639 of F don't contain enough information needed to realize the default
5643 realize_basic_faces (f
)
5648 /* Block input there so that we won't be surprised by an X expose
5649 event, for instance without having the faces set up. */
5652 if (realize_default_face (f
))
5654 realize_named_face (f
, Qmode_line
, MODE_LINE_FACE_ID
);
5655 realize_named_face (f
, Qtool_bar
, TOOL_BAR_FACE_ID
);
5656 realize_named_face (f
, Qfringe
, BITMAP_AREA_FACE_ID
);
5657 realize_named_face (f
, Qheader_line
, HEADER_LINE_FACE_ID
);
5658 realize_named_face (f
, Qscroll_bar
, SCROLL_BAR_FACE_ID
);
5659 realize_named_face (f
, Qborder
, BORDER_FACE_ID
);
5660 realize_named_face (f
, Qcursor
, CURSOR_FACE_ID
);
5661 realize_named_face (f
, Qmouse
, MOUSE_FACE_ID
);
5662 realize_named_face (f
, Qmenu
, MENU_FACE_ID
);
5671 /* Realize the default face on frame F. If the face is not fully
5672 specified, make it fully-specified. Attributes of the default face
5673 that are not explicitly specified are taken from frame parameters. */
5676 realize_default_face (f
)
5679 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5681 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5682 Lisp_Object frame_font
;
5686 /* If the `default' face is not yet known, create it. */
5687 lface
= lface_from_face_name (f
, Qdefault
, 0);
5691 XSETFRAME (frame
, f
);
5692 lface
= Finternal_make_lisp_face (Qdefault
, frame
);
5695 #ifdef HAVE_WINDOW_SYSTEM
5696 if (FRAME_WINDOW_P (f
))
5698 /* Set frame_font to the value of the `font' frame parameter. */
5699 frame_font
= Fassq (Qfont
, f
->param_alist
);
5700 xassert (CONSP (frame_font
) && STRINGP (XCDR (frame_font
)));
5701 frame_font
= XCDR (frame_font
);
5702 set_lface_from_font_name (f
, lface
, frame_font
, 0, 1);
5704 #endif /* HAVE_WINDOW_SYSTEM */
5706 if (!FRAME_WINDOW_P (f
))
5708 LFACE_FAMILY (lface
) = build_string ("default");
5709 LFACE_SWIDTH (lface
) = Qnormal
;
5710 LFACE_HEIGHT (lface
) = make_number (1);
5711 LFACE_WEIGHT (lface
) = Qnormal
;
5712 LFACE_SLANT (lface
) = Qnormal
;
5715 if (UNSPECIFIEDP (LFACE_UNDERLINE (lface
)))
5716 LFACE_UNDERLINE (lface
) = Qnil
;
5718 if (UNSPECIFIEDP (LFACE_OVERLINE (lface
)))
5719 LFACE_OVERLINE (lface
) = Qnil
;
5721 if (UNSPECIFIEDP (LFACE_STRIKE_THROUGH (lface
)))
5722 LFACE_STRIKE_THROUGH (lface
) = Qnil
;
5724 if (UNSPECIFIEDP (LFACE_BOX (lface
)))
5725 LFACE_BOX (lface
) = Qnil
;
5727 if (UNSPECIFIEDP (LFACE_INVERSE (lface
)))
5728 LFACE_INVERSE (lface
) = Qnil
;
5730 if (UNSPECIFIEDP (LFACE_FOREGROUND (lface
)))
5732 /* This function is called so early that colors are not yet
5733 set in the frame parameter list. */
5734 Lisp_Object color
= Fassq (Qforeground_color
, f
->param_alist
);
5736 if (CONSP (color
) && STRINGP (XCDR (color
)))
5737 LFACE_FOREGROUND (lface
) = XCDR (color
);
5738 else if (FRAME_WINDOW_P (f
))
5740 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5741 LFACE_FOREGROUND (lface
) = build_string (unspecified_fg
);
5746 if (UNSPECIFIEDP (LFACE_BACKGROUND (lface
)))
5748 /* This function is called so early that colors are not yet
5749 set in the frame parameter list. */
5750 Lisp_Object color
= Fassq (Qbackground_color
, f
->param_alist
);
5751 if (CONSP (color
) && STRINGP (XCDR (color
)))
5752 LFACE_BACKGROUND (lface
) = XCDR (color
);
5753 else if (FRAME_WINDOW_P (f
))
5755 else if (FRAME_TERMCAP_P (f
) || FRAME_MSDOS_P (f
))
5756 LFACE_BACKGROUND (lface
) = build_string (unspecified_bg
);
5761 if (UNSPECIFIEDP (LFACE_STIPPLE (lface
)))
5762 LFACE_STIPPLE (lface
) = Qnil
;
5764 /* Realize the face; it must be fully-specified now. */
5765 xassert (lface_fully_specified_p (XVECTOR (lface
)->contents
));
5766 check_lface (lface
);
5767 bcopy (XVECTOR (lface
)->contents
, attrs
, sizeof attrs
);
5768 face
= realize_face (c
, attrs
, 0, NULL
, DEFAULT_FACE_ID
);
5773 /* Realize basic faces other than the default face in face cache C.
5774 SYMBOL is the face name, ID is the face id the realized face must
5775 have. The default face must have been realized already. */
5778 realize_named_face (f
, symbol
, id
)
5783 struct face_cache
*c
= FRAME_FACE_CACHE (f
);
5784 Lisp_Object lface
= lface_from_face_name (f
, symbol
, 0);
5785 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
5786 Lisp_Object symbol_attrs
[LFACE_VECTOR_SIZE
];
5787 struct face
*new_face
;
5789 /* The default face must exist and be fully specified. */
5790 get_lface_attributes (f
, Qdefault
, attrs
, 1);
5791 check_lface_attrs (attrs
);
5792 xassert (lface_fully_specified_p (attrs
));
5794 /* If SYMBOL isn't know as a face, create it. */
5798 XSETFRAME (frame
, f
);
5799 lface
= Finternal_make_lisp_face (symbol
, frame
);
5802 /* Merge SYMBOL's face with the default face. */
5803 get_lface_attributes (f
, symbol
, symbol_attrs
, 1);
5804 merge_face_vectors (symbol_attrs
, attrs
);
5806 /* Realize the face. */
5807 new_face
= realize_face (c
, attrs
, 0, NULL
, id
);
5811 /* Realize the fully-specified face with attributes ATTRS in face
5812 cache CACHE for character C. If C is a multibyte character,
5813 BASE_FACE is a face that has the same attributes. Otherwise,
5814 BASE_FACE is ignored. If FORMER_FACE_ID is non-negative, it is an
5815 ID of face to remove before caching the new face. Value is a
5816 pointer to the newly created realized face. */
5818 static struct face
*
5819 realize_face (cache
, attrs
, c
, base_face
, former_face_id
)
5820 struct face_cache
*cache
;
5823 struct face
*base_face
;
5828 /* LFACE must be fully specified. */
5829 xassert (cache
!= NULL
);
5830 check_lface_attrs (attrs
);
5832 if (former_face_id
>= 0 && cache
->used
> former_face_id
)
5834 /* Remove the former face. */
5835 struct face
*former_face
= cache
->faces_by_id
[former_face_id
];
5836 uncache_face (cache
, former_face
);
5837 free_realized_face (cache
->f
, former_face
);
5840 if (FRAME_WINDOW_P (cache
->f
))
5841 face
= realize_x_face (cache
, attrs
, c
, base_face
);
5842 else if (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
))
5843 face
= realize_tty_face (cache
, attrs
, c
);
5847 /* Insert the new face. */
5848 cache_face (cache
, face
, lface_hash (attrs
));
5849 #ifdef HAVE_WINDOW_SYSTEM
5850 if (FRAME_WINDOW_P (cache
->f
) && face
->font
== NULL
)
5851 load_face_font (cache
->f
, face
, c
);
5852 #endif /* HAVE_WINDOW_SYSTEM */
5857 /* Realize the fully-specified face with attributes ATTRS in face
5858 cache CACHE for character C. Do it for X frame CACHE->f. If C is
5859 a multibyte character, BASE_FACE is a face that has the same
5860 attributes. Otherwise, BASE_FACE is ignored. If the new face
5861 doesn't share font with the default face, a fontname is allocated
5862 from the heap and set in `font_name' of the new face, but it is not
5863 yet loaded here. Value is a pointer to the newly created realized
5866 static struct face
*
5867 realize_x_face (cache
, attrs
, c
, base_face
)
5868 struct face_cache
*cache
;
5871 struct face
*base_face
;
5873 #ifdef HAVE_WINDOW_SYSTEM
5874 struct face
*face
, *default_face
;
5876 Lisp_Object stipple
, overline
, strike_through
, box
;
5878 xassert (FRAME_WINDOW_P (cache
->f
));
5879 xassert (SINGLE_BYTE_CHAR_P (c
)
5882 /* Allocate a new realized face. */
5883 face
= make_realized_face (attrs
);
5887 /* If C is a multibyte character, we share all face attirbutes with
5888 BASE_FACE including the realized fontset. But, we must load a
5890 if (!SINGLE_BYTE_CHAR_P (c
))
5892 bcopy (base_face
, face
, sizeof *face
);
5895 /* Don't try to free the colors copied bitwise from BASE_FACE. */
5896 face
->foreground_defaulted_p
= 1;
5897 face
->background_defaulted_p
= 1;
5898 face
->underline_defaulted_p
= 1;
5899 face
->overline_color_defaulted_p
= 1;
5900 face
->strike_through_color_defaulted_p
= 1;
5901 face
->box_color_defaulted_p
= 1;
5903 /* to force realize_face to load font */
5908 /* Now we are realizing a face for ASCII (and unibyte) characters. */
5910 /* Determine the font to use. Most of the time, the font will be
5911 the same as the font of the default face, so try that first. */
5912 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5914 && FACE_SUITABLE_FOR_CHAR_P (default_face
, c
)
5915 && lface_same_font_attributes_p (default_face
->lface
, attrs
))
5917 face
->font
= default_face
->font
;
5918 face
->fontset
= default_face
->fontset
;
5919 face
->font_info_id
= default_face
->font_info_id
;
5920 face
->font_name
= default_face
->font_name
;
5921 face
->ascii_face
= face
;
5923 /* But, as we can't share the fontset, make a new realized
5924 fontset that has the same base fontset as of the default
5927 = make_fontset_for_ascii_face (f
, default_face
->fontset
);
5931 /* If the face attribute ATTRS specifies a fontset, use it as
5932 the base of a new realized fontset. Otherwise, use the
5933 default fontset as the base. The base determines registry
5934 and encoding of a font. It may also determine foundry and
5935 family. The other fields of font name pattern are
5936 constructed from ATTRS. */
5938 = make_fontset_for_ascii_face (f
, face_fontset (attrs
));
5939 face
->font
= NULL
; /* to force realize_face to load font */
5942 /* Load colors, and set remaining attributes. */
5944 load_face_colors (f
, face
, attrs
);
5947 box
= attrs
[LFACE_BOX_INDEX
];
5950 /* A simple box of line width 1 drawn in color given by
5952 face
->box_color
= load_color (f
, face
, attrs
[LFACE_BOX_INDEX
],
5954 face
->box
= FACE_SIMPLE_BOX
;
5955 face
->box_line_width
= 1;
5957 else if (INTEGERP (box
))
5959 /* Simple box of specified line width in foreground color of the
5961 xassert (XINT (box
) > 0);
5962 face
->box
= FACE_SIMPLE_BOX
;
5963 face
->box_line_width
= XFASTINT (box
);
5964 face
->box_color
= face
->foreground
;
5965 face
->box_color_defaulted_p
= 1;
5967 else if (CONSP (box
))
5969 /* `(:width WIDTH :color COLOR :shadow SHADOW)'. SHADOW
5970 being one of `raised' or `sunken'. */
5971 face
->box
= FACE_SIMPLE_BOX
;
5972 face
->box_color
= face
->foreground
;
5973 face
->box_color_defaulted_p
= 1;
5974 face
->box_line_width
= 1;
5978 Lisp_Object keyword
, value
;
5980 keyword
= XCAR (box
);
5988 if (EQ (keyword
, QCline_width
))
5990 if (INTEGERP (value
) && XINT (value
) > 0)
5991 face
->box_line_width
= XFASTINT (value
);
5993 else if (EQ (keyword
, QCcolor
))
5995 if (STRINGP (value
))
5997 face
->box_color
= load_color (f
, face
, value
,
5999 face
->use_box_color_for_shadows_p
= 1;
6002 else if (EQ (keyword
, QCstyle
))
6004 if (EQ (value
, Qreleased_button
))
6005 face
->box
= FACE_RAISED_BOX
;
6006 else if (EQ (value
, Qpressed_button
))
6007 face
->box
= FACE_SUNKEN_BOX
;
6012 /* Text underline, overline, strike-through. */
6014 if (EQ (attrs
[LFACE_UNDERLINE_INDEX
], Qt
))
6016 /* Use default color (same as foreground color). */
6017 face
->underline_p
= 1;
6018 face
->underline_defaulted_p
= 1;
6019 face
->underline_color
= 0;
6021 else if (STRINGP (attrs
[LFACE_UNDERLINE_INDEX
]))
6023 /* Use specified color. */
6024 face
->underline_p
= 1;
6025 face
->underline_defaulted_p
= 0;
6026 face
->underline_color
6027 = load_color (f
, face
, attrs
[LFACE_UNDERLINE_INDEX
],
6028 LFACE_UNDERLINE_INDEX
);
6030 else if (NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6032 face
->underline_p
= 0;
6033 face
->underline_defaulted_p
= 0;
6034 face
->underline_color
= 0;
6037 overline
= attrs
[LFACE_OVERLINE_INDEX
];
6038 if (STRINGP (overline
))
6040 face
->overline_color
6041 = load_color (f
, face
, attrs
[LFACE_OVERLINE_INDEX
],
6042 LFACE_OVERLINE_INDEX
);
6043 face
->overline_p
= 1;
6045 else if (EQ (overline
, Qt
))
6047 face
->overline_color
= face
->foreground
;
6048 face
->overline_color_defaulted_p
= 1;
6049 face
->overline_p
= 1;
6052 strike_through
= attrs
[LFACE_STRIKE_THROUGH_INDEX
];
6053 if (STRINGP (strike_through
))
6055 face
->strike_through_color
6056 = load_color (f
, face
, attrs
[LFACE_STRIKE_THROUGH_INDEX
],
6057 LFACE_STRIKE_THROUGH_INDEX
);
6058 face
->strike_through_p
= 1;
6060 else if (EQ (strike_through
, Qt
))
6062 face
->strike_through_color
= face
->foreground
;
6063 face
->strike_through_color_defaulted_p
= 1;
6064 face
->strike_through_p
= 1;
6067 stipple
= attrs
[LFACE_STIPPLE_INDEX
];
6068 if (!NILP (stipple
))
6069 face
->stipple
= load_pixmap (f
, stipple
, &face
->pixmap_w
, &face
->pixmap_h
);
6071 xassert (FACE_SUITABLE_FOR_CHAR_P (face
, c
));
6073 #endif /* HAVE_WINDOW_SYSTEM */
6077 /* Realize the fully-specified face with attributes ATTRS in face
6078 cache CACHE for character C. Do it for TTY frame CACHE->f. Value is a
6079 pointer to the newly created realized face. */
6081 static struct face
*
6082 realize_tty_face (cache
, attrs
, c
)
6083 struct face_cache
*cache
;
6090 Lisp_Object tty_defined_color_alist
6091 = find_symbol_value (intern ("tty-defined-color-alist"));
6092 Lisp_Object tty_color_alist
= intern ("tty-color-alist");
6094 int face_colors_defaulted
= 0;
6096 /* Frame must be a termcap frame. */
6097 xassert (FRAME_TERMCAP_P (cache
->f
) || FRAME_MSDOS_P (cache
->f
));
6099 /* Allocate a new realized face. */
6100 face
= make_realized_face (attrs
);
6101 face
->font_name
= FRAME_MSDOS_P (cache
->f
) ? "ms-dos" : "tty";
6103 /* Map face attributes to TTY appearances. We map slant to
6104 dimmed text because we want italic text to appear differently
6105 and because dimmed text is probably used infrequently. */
6106 weight
= face_numeric_weight (attrs
[LFACE_WEIGHT_INDEX
]);
6107 slant
= face_numeric_slant (attrs
[LFACE_SLANT_INDEX
]);
6109 if (weight
> XLFD_WEIGHT_MEDIUM
)
6110 face
->tty_bold_p
= 1;
6111 if (weight
< XLFD_WEIGHT_MEDIUM
|| slant
!= XLFD_SLANT_ROMAN
)
6112 face
->tty_dim_p
= 1;
6113 if (!NILP (attrs
[LFACE_UNDERLINE_INDEX
]))
6114 face
->tty_underline_p
= 1;
6115 if (!NILP (attrs
[LFACE_INVERSE_INDEX
]))
6116 face
->tty_reverse_p
= 1;
6118 /* Map color names to color indices. */
6119 face
->foreground
= FACE_TTY_DEFAULT_FG_COLOR
;
6120 face
->background
= FACE_TTY_DEFAULT_BG_COLOR
;
6122 XSETFRAME (frame
, cache
->f
);
6123 color
= attrs
[LFACE_FOREGROUND_INDEX
];
6125 && XSTRING (color
)->size
6126 && CONSP (tty_defined_color_alist
)
6127 && (color
= Fassoc (color
, call1 (tty_color_alist
, frame
)),
6129 /* Associations in tty-defined-color-alist are of the form
6130 (NAME INDEX R G B). We need the INDEX part. */
6131 face
->foreground
= XINT (XCAR (XCDR (color
)));
6133 if (face
->foreground
== FACE_TTY_DEFAULT_FG_COLOR
6134 && STRINGP (attrs
[LFACE_FOREGROUND_INDEX
]))
6136 face
->foreground
= load_color (cache
->f
, face
,
6137 attrs
[LFACE_FOREGROUND_INDEX
],
6138 LFACE_FOREGROUND_INDEX
);
6140 #if defined (MSDOS) || defined (WINDOWSNT)
6141 /* If the foreground of the default face is the default color,
6142 use the foreground color defined by the frame. */
6144 if (FRAME_MSDOS_P (cache
->f
))
6148 if (face
->foreground
== FACE_TTY_DEFAULT_FG_COLOR
6149 || face
->foreground
== FACE_TTY_DEFAULT_COLOR
)
6151 face
->foreground
= FRAME_FOREGROUND_PIXEL (cache
->f
);
6152 attrs
[LFACE_FOREGROUND_INDEX
] =
6153 tty_color_name (cache
->f
, face
->foreground
);
6154 face_colors_defaulted
= 1;
6156 else if (face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6158 face
->foreground
= FRAME_BACKGROUND_PIXEL (cache
->f
);
6159 attrs
[LFACE_FOREGROUND_INDEX
] =
6160 tty_color_name (cache
->f
, face
->foreground
);
6161 face_colors_defaulted
= 1;
6166 #endif /* MSDOS or WINDOWSNT */
6169 color
= attrs
[LFACE_BACKGROUND_INDEX
];
6171 && XSTRING (color
)->size
6172 && CONSP (tty_defined_color_alist
)
6173 && (color
= Fassoc (color
, call1 (tty_color_alist
, frame
)),
6175 /* Associations in tty-defined-color-alist are of the form
6176 (NAME INDEX R G B). We need the INDEX part. */
6177 face
->background
= XINT (XCAR (XCDR (color
)));
6179 if (face
->background
== FACE_TTY_DEFAULT_BG_COLOR
6180 && STRINGP (attrs
[LFACE_BACKGROUND_INDEX
]))
6182 face
->background
= load_color (cache
->f
, face
,
6183 attrs
[LFACE_BACKGROUND_INDEX
],
6184 LFACE_BACKGROUND_INDEX
);
6185 #if defined (MSDOS) || defined (WINDOWSNT)
6186 /* If the background of the default face is the default color,
6187 use the background color defined by the frame. */
6189 if (FRAME_MSDOS_P (cache
->f
))
6193 if (face
->background
== FACE_TTY_DEFAULT_BG_COLOR
6194 || face
->background
== FACE_TTY_DEFAULT_COLOR
)
6196 face
->background
= FRAME_BACKGROUND_PIXEL (cache
->f
);
6197 attrs
[LFACE_BACKGROUND_INDEX
] =
6198 tty_color_name (cache
->f
, face
->background
);
6199 face_colors_defaulted
= 1;
6201 else if (face
->background
== FACE_TTY_DEFAULT_FG_COLOR
)
6203 face
->background
= FRAME_FOREGROUND_PIXEL (cache
->f
);
6204 attrs
[LFACE_BACKGROUND_INDEX
] =
6205 tty_color_name (cache
->f
, face
->background
);
6206 face_colors_defaulted
= 1;
6211 #endif /* MSDOS or WINDOWSNT */
6214 /* Swap colors if face is inverse-video. If the colors are taken
6215 from the frame colors, they are already inverted, since the
6216 frame-creation function calls x-handle-reverse-video. */
6217 if (face
->tty_reverse_p
&& !face_colors_defaulted
)
6219 unsigned long tem
= face
->foreground
;
6221 face
->foreground
= face
->background
;
6222 face
->background
= tem
;
6225 if (tty_suppress_bold_inverse_default_colors_p
6227 && face
->background
== FACE_TTY_DEFAULT_FG_COLOR
6228 && face
->foreground
== FACE_TTY_DEFAULT_BG_COLOR
)
6229 face
->tty_bold_p
= 0;
6235 DEFUN ("tty-suppress-bold-inverse-default-colors",
6236 Ftty_suppress_bold_inverse_default_colors
,
6237 Stty_suppress_bold_inverse_default_colors
, 1, 1, 0,
6238 "Suppress/allow boldness of faces with inverse default colors.\n\
6239 SUPPRESS non-nil means suppress it.\n\
6240 This affects bold faces on TTYs whose foreground is the default background\n\
6241 color of the display and whose background is the default foreground color.\n\
6242 For such faces, no bold text will be displayed.")
6244 Lisp_Object suppress
;
6246 tty_suppress_bold_inverse_default_colors_p
= !NILP (suppress
);
6247 ++face_change_count
;
6253 /***********************************************************************
6255 ***********************************************************************/
6257 /* Return the ID of the face to use to display character CH with face
6258 property PROP on frame F in current_buffer. */
6261 compute_char_face (f
, ch
, prop
)
6268 if (NILP (current_buffer
->enable_multibyte_characters
))
6273 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6274 face_id
= FACE_FOR_CHAR (f
, face
, ch
);
6278 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6279 struct face
*default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6280 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6281 merge_face_vector_with_property (f
, attrs
, prop
);
6282 face_id
= lookup_face (f
, attrs
, ch
, NULL
);
6289 /* Return the face ID associated with buffer position POS for
6290 displaying ASCII characters. Return in *ENDPTR the position at
6291 which a different face is needed, as far as text properties and
6292 overlays are concerned. W is a window displaying current_buffer.
6294 REGION_BEG, REGION_END delimit the region, so it can be
6297 LIMIT is a position not to scan beyond. That is to limit the time
6298 this function can take.
6300 If MOUSE is non-zero, use the character's mouse-face, not its face.
6302 The face returned is suitable for displaying ASCII characters. */
6305 face_at_buffer_position (w
, pos
, region_beg
, region_end
,
6306 endptr
, limit
, mouse
)
6309 int region_beg
, region_end
;
6314 struct frame
*f
= XFRAME (w
->frame
);
6315 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6316 Lisp_Object prop
, position
;
6318 Lisp_Object
*overlay_vec
;
6321 Lisp_Object propname
= mouse
? Qmouse_face
: Qface
;
6322 Lisp_Object limit1
, end
;
6323 struct face
*default_face
;
6324 int multibyte_p
= !NILP (current_buffer
->enable_multibyte_characters
);
6326 /* W must display the current buffer. We could write this function
6327 to use the frame and buffer of W, but right now it doesn't. */
6328 /* xassert (XBUFFER (w->buffer) == current_buffer); */
6330 XSETFRAME (frame
, f
);
6331 XSETFASTINT (position
, pos
);
6334 if (pos
< region_beg
&& region_beg
< endpos
)
6335 endpos
= region_beg
;
6337 /* Get the `face' or `mouse_face' text property at POS, and
6338 determine the next position at which the property changes. */
6339 prop
= Fget_text_property (position
, propname
, w
->buffer
);
6340 XSETFASTINT (limit1
, (limit
< endpos
? limit
: endpos
));
6341 end
= Fnext_single_property_change (position
, propname
, w
->buffer
, limit1
);
6343 endpos
= XINT (end
);
6345 /* Look at properties from overlays. */
6350 /* First try with room for 40 overlays. */
6352 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6353 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6354 &next_overlay
, NULL
);
6356 /* If there are more than 40, make enough space for all, and try
6358 if (noverlays
> len
)
6361 overlay_vec
= (Lisp_Object
*) alloca (len
* sizeof (Lisp_Object
));
6362 noverlays
= overlays_at (pos
, 0, &overlay_vec
, &len
,
6363 &next_overlay
, NULL
);
6366 if (next_overlay
< endpos
)
6367 endpos
= next_overlay
;
6372 default_face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
6374 /* Optimize common cases where we can use the default face. */
6377 && !(pos
>= region_beg
&& pos
< region_end
))
6378 return DEFAULT_FACE_ID
;
6380 /* Begin with attributes from the default face. */
6381 bcopy (default_face
->lface
, attrs
, sizeof attrs
);
6383 /* Merge in attributes specified via text properties. */
6385 merge_face_vector_with_property (f
, attrs
, prop
);
6387 /* Now merge the overlay data. */
6388 noverlays
= sort_overlays (overlay_vec
, noverlays
, w
);
6389 for (i
= 0; i
< noverlays
; i
++)
6394 prop
= Foverlay_get (overlay_vec
[i
], propname
);
6396 merge_face_vector_with_property (f
, attrs
, prop
);
6398 oend
= OVERLAY_END (overlay_vec
[i
]);
6399 oendpos
= OVERLAY_POSITION (oend
);
6400 if (oendpos
< endpos
)
6404 /* If in the region, merge in the region face. */
6405 if (pos
>= region_beg
&& pos
< region_end
)
6407 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6408 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6410 if (region_end
< endpos
)
6411 endpos
= region_end
;
6416 /* Look up a realized face with the given face attributes,
6417 or realize a new one for ASCII characters. */
6418 return lookup_face (f
, attrs
, 0, NULL
);
6422 /* Compute the face at character position POS in Lisp string STRING on
6423 window W, for ASCII characters.
6425 If STRING is an overlay string, it comes from position BUFPOS in
6426 current_buffer, otherwise BUFPOS is zero to indicate that STRING is
6427 not an overlay string. W must display the current buffer.
6428 REGION_BEG and REGION_END give the start and end positions of the
6429 region; both are -1 if no region is visible. BASE_FACE_ID is the
6430 id of the basic face to merge with. It is usually equal to
6431 DEFAULT_FACE_ID but can be MODE_LINE_FACE_ID or HEADER_LINE_FACE_ID
6432 for strings displayed in the mode or top line.
6434 Set *ENDPTR to the next position where to check for faces in
6435 STRING; -1 if the face is constant from POS to the end of the
6438 Value is the id of the face to use. The face returned is suitable
6439 for displaying ASCII characters. */
6442 face_at_string_position (w
, string
, pos
, bufpos
, region_beg
,
6443 region_end
, endptr
, base_face_id
)
6447 int region_beg
, region_end
;
6449 enum face_id base_face_id
;
6451 Lisp_Object prop
, position
, end
, limit
;
6452 struct frame
*f
= XFRAME (WINDOW_FRAME (w
));
6453 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
6454 struct face
*base_face
;
6455 int multibyte_p
= STRING_MULTIBYTE (string
);
6457 /* Get the value of the face property at the current position within
6458 STRING. Value is nil if there is no face property. */
6459 XSETFASTINT (position
, pos
);
6460 prop
= Fget_text_property (position
, Qface
, string
);
6462 /* Get the next position at which to check for faces. Value of end
6463 is nil if face is constant all the way to the end of the string.
6464 Otherwise it is a string position where to check faces next.
6465 Limit is the maximum position up to which to check for property
6466 changes in Fnext_single_property_change. Strings are usually
6467 short, so set the limit to the end of the string. */
6468 XSETFASTINT (limit
, XSTRING (string
)->size
);
6469 end
= Fnext_single_property_change (position
, Qface
, string
, limit
);
6471 *endptr
= XFASTINT (end
);
6475 base_face
= FACE_FROM_ID (f
, base_face_id
);
6476 xassert (base_face
);
6478 /* Optimize the default case that there is no face property and we
6479 are not in the region. */
6481 && (base_face_id
!= DEFAULT_FACE_ID
6482 /* BUFPOS <= 0 means STRING is not an overlay string, so
6483 that the region doesn't have to be taken into account. */
6485 || bufpos
< region_beg
6486 || bufpos
>= region_end
)
6488 /* We can't realize faces for different charsets differently
6489 if we don't have fonts, so we can stop here if not working
6490 on a window-system frame. */
6491 || !FRAME_WINDOW_P (f
)
6492 || FACE_SUITABLE_FOR_CHAR_P (base_face
, 0)))
6493 return base_face
->id
;
6495 /* Begin with attributes from the base face. */
6496 bcopy (base_face
->lface
, attrs
, sizeof attrs
);
6498 /* Merge in attributes specified via text properties. */
6500 merge_face_vector_with_property (f
, attrs
, prop
);
6502 /* If in the region, merge in the region face. */
6504 && bufpos
>= region_beg
6505 && bufpos
< region_end
)
6507 Lisp_Object region_face
= lface_from_face_name (f
, Qregion
, 0);
6508 merge_face_vectors (XVECTOR (region_face
)->contents
, attrs
);
6511 /* Look up a realized face with the given face attributes,
6512 or realize a new one for ASCII characters. */
6513 return lookup_face (f
, attrs
, 0, NULL
);
6518 /***********************************************************************
6520 ***********************************************************************/
6524 /* Print the contents of the realized face FACE to stderr. */
6527 dump_realized_face (face
)
6530 fprintf (stderr
, "ID: %d\n", face
->id
);
6531 #ifdef HAVE_X_WINDOWS
6532 fprintf (stderr
, "gc: %d\n", (int) face
->gc
);
6534 fprintf (stderr
, "foreground: 0x%lx (%s)\n",
6536 XSTRING (face
->lface
[LFACE_FOREGROUND_INDEX
])->data
);
6537 fprintf (stderr
, "background: 0x%lx (%s)\n",
6539 XSTRING (face
->lface
[LFACE_BACKGROUND_INDEX
])->data
);
6540 fprintf (stderr
, "font_name: %s (%s)\n",
6542 XSTRING (face
->lface
[LFACE_FAMILY_INDEX
])->data
);
6543 #ifdef HAVE_X_WINDOWS
6544 fprintf (stderr
, "font = %p\n", face
->font
);
6546 fprintf (stderr
, "font_info_id = %d\n", face
->font_info_id
);
6547 fprintf (stderr
, "fontset: %d\n", face
->fontset
);
6548 fprintf (stderr
, "underline: %d (%s)\n",
6550 XSTRING (Fsymbol_name (face
->lface
[LFACE_UNDERLINE_INDEX
]))->data
);
6551 fprintf (stderr
, "hash: %d\n", face
->hash
);
6552 fprintf (stderr
, "charset: %d\n", face
->charset
);
6556 DEFUN ("dump-face", Fdump_face
, Sdump_face
, 0, 1, 0, "")
6564 fprintf (stderr
, "font selection order: ");
6565 for (i
= 0; i
< DIM (font_sort_order
); ++i
)
6566 fprintf (stderr
, "%d ", font_sort_order
[i
]);
6567 fprintf (stderr
, "\n");
6569 fprintf (stderr
, "alternative fonts: ");
6570 debug_print (Vface_alternative_font_family_alist
);
6571 fprintf (stderr
, "\n");
6573 for (i
= 0; i
< FRAME_FACE_CACHE (SELECTED_FRAME ())->used
; ++i
)
6574 Fdump_face (make_number (i
));
6579 CHECK_NUMBER (n
, 0);
6580 face
= FACE_FROM_ID (SELECTED_FRAME (), XINT (n
));
6582 error ("Not a valid face");
6583 dump_realized_face (face
);
6590 DEFUN ("show-face-resources", Fshow_face_resources
, Sshow_face_resources
,
6594 fprintf (stderr
, "number of colors = %d\n", ncolors_allocated
);
6595 fprintf (stderr
, "number of pixmaps = %d\n", npixmaps_allocated
);
6596 fprintf (stderr
, "number of GCs = %d\n", ngcs
);
6600 #endif /* GLYPH_DEBUG != 0 */
6604 /***********************************************************************
6606 ***********************************************************************/
6611 Qface
= intern ("face");
6613 Qbitmap_spec_p
= intern ("bitmap-spec-p");
6614 staticpro (&Qbitmap_spec_p
);
6615 Qframe_update_face_colors
= intern ("frame-update-face-colors");
6616 staticpro (&Qframe_update_face_colors
);
6618 /* Lisp face attribute keywords. */
6619 QCfamily
= intern (":family");
6620 staticpro (&QCfamily
);
6621 QCheight
= intern (":height");
6622 staticpro (&QCheight
);
6623 QCweight
= intern (":weight");
6624 staticpro (&QCweight
);
6625 QCslant
= intern (":slant");
6626 staticpro (&QCslant
);
6627 QCunderline
= intern (":underline");
6628 staticpro (&QCunderline
);
6629 QCinverse_video
= intern (":inverse-video");
6630 staticpro (&QCinverse_video
);
6631 QCreverse_video
= intern (":reverse-video");
6632 staticpro (&QCreverse_video
);
6633 QCforeground
= intern (":foreground");
6634 staticpro (&QCforeground
);
6635 QCbackground
= intern (":background");
6636 staticpro (&QCbackground
);
6637 QCstipple
= intern (":stipple");;
6638 staticpro (&QCstipple
);
6639 QCwidth
= intern (":width");
6640 staticpro (&QCwidth
);
6641 QCfont
= intern (":font");
6642 staticpro (&QCfont
);
6643 QCbold
= intern (":bold");
6644 staticpro (&QCbold
);
6645 QCitalic
= intern (":italic");
6646 staticpro (&QCitalic
);
6647 QCoverline
= intern (":overline");
6648 staticpro (&QCoverline
);
6649 QCstrike_through
= intern (":strike-through");
6650 staticpro (&QCstrike_through
);
6651 QCbox
= intern (":box");
6654 /* Symbols used for Lisp face attribute values. */
6655 QCcolor
= intern (":color");
6656 staticpro (&QCcolor
);
6657 QCline_width
= intern (":line-width");
6658 staticpro (&QCline_width
);
6659 QCstyle
= intern (":style");
6660 staticpro (&QCstyle
);
6661 Qreleased_button
= intern ("released-button");
6662 staticpro (&Qreleased_button
);
6663 Qpressed_button
= intern ("pressed-button");
6664 staticpro (&Qpressed_button
);
6665 Qnormal
= intern ("normal");
6666 staticpro (&Qnormal
);
6667 Qultra_light
= intern ("ultra-light");
6668 staticpro (&Qultra_light
);
6669 Qextra_light
= intern ("extra-light");
6670 staticpro (&Qextra_light
);
6671 Qlight
= intern ("light");
6672 staticpro (&Qlight
);
6673 Qsemi_light
= intern ("semi-light");
6674 staticpro (&Qsemi_light
);
6675 Qsemi_bold
= intern ("semi-bold");
6676 staticpro (&Qsemi_bold
);
6677 Qbold
= intern ("bold");
6679 Qextra_bold
= intern ("extra-bold");
6680 staticpro (&Qextra_bold
);
6681 Qultra_bold
= intern ("ultra-bold");
6682 staticpro (&Qultra_bold
);
6683 Qoblique
= intern ("oblique");
6684 staticpro (&Qoblique
);
6685 Qitalic
= intern ("italic");
6686 staticpro (&Qitalic
);
6687 Qreverse_oblique
= intern ("reverse-oblique");
6688 staticpro (&Qreverse_oblique
);
6689 Qreverse_italic
= intern ("reverse-italic");
6690 staticpro (&Qreverse_italic
);
6691 Qultra_condensed
= intern ("ultra-condensed");
6692 staticpro (&Qultra_condensed
);
6693 Qextra_condensed
= intern ("extra-condensed");
6694 staticpro (&Qextra_condensed
);
6695 Qcondensed
= intern ("condensed");
6696 staticpro (&Qcondensed
);
6697 Qsemi_condensed
= intern ("semi-condensed");
6698 staticpro (&Qsemi_condensed
);
6699 Qsemi_expanded
= intern ("semi-expanded");
6700 staticpro (&Qsemi_expanded
);
6701 Qexpanded
= intern ("expanded");
6702 staticpro (&Qexpanded
);
6703 Qextra_expanded
= intern ("extra-expanded");
6704 staticpro (&Qextra_expanded
);
6705 Qultra_expanded
= intern ("ultra-expanded");
6706 staticpro (&Qultra_expanded
);
6707 Qbackground_color
= intern ("background-color");
6708 staticpro (&Qbackground_color
);
6709 Qforeground_color
= intern ("foreground-color");
6710 staticpro (&Qforeground_color
);
6711 Qunspecified
= intern ("unspecified");
6712 staticpro (&Qunspecified
);
6714 Qface_alias
= intern ("face-alias");
6715 staticpro (&Qface_alias
);
6716 Qdefault
= intern ("default");
6717 staticpro (&Qdefault
);
6718 Qtool_bar
= intern ("tool-bar");
6719 staticpro (&Qtool_bar
);
6720 Qregion
= intern ("region");
6721 staticpro (&Qregion
);
6722 Qfringe
= intern ("fringe");
6723 staticpro (&Qfringe
);
6724 Qheader_line
= intern ("header-line");
6725 staticpro (&Qheader_line
);
6726 Qscroll_bar
= intern ("scroll-bar");
6727 staticpro (&Qscroll_bar
);
6728 Qmenu
= intern ("menu");
6730 Qcursor
= intern ("cursor");
6731 staticpro (&Qcursor
);
6732 Qborder
= intern ("border");
6733 staticpro (&Qborder
);
6734 Qmouse
= intern ("mouse");
6735 staticpro (&Qmouse
);
6736 Qtty_color_desc
= intern ("tty-color-desc");
6737 staticpro (&Qtty_color_desc
);
6738 Qtty_color_by_index
= intern ("tty-color-by-index");
6739 staticpro (&Qtty_color_by_index
);
6741 defsubr (&Sinternal_make_lisp_face
);
6742 defsubr (&Sinternal_lisp_face_p
);
6743 defsubr (&Sinternal_set_lisp_face_attribute
);
6744 #ifdef HAVE_WINDOW_SYSTEM
6745 defsubr (&Sinternal_set_lisp_face_attribute_from_resource
);
6747 defsubr (&Scolor_gray_p
);
6748 defsubr (&Scolor_supported_p
);
6749 defsubr (&Sinternal_get_lisp_face_attribute
);
6750 defsubr (&Sinternal_lisp_face_attribute_values
);
6751 defsubr (&Sinternal_lisp_face_equal_p
);
6752 defsubr (&Sinternal_lisp_face_empty_p
);
6753 defsubr (&Sinternal_copy_lisp_face
);
6754 defsubr (&Sinternal_merge_in_global_face
);
6755 defsubr (&Sface_font
);
6756 defsubr (&Sframe_face_alist
);
6757 defsubr (&Sinternal_set_font_selection_order
);
6758 defsubr (&Sinternal_set_alternative_font_family_alist
);
6760 defsubr (&Sdump_face
);
6761 defsubr (&Sshow_face_resources
);
6762 #endif /* GLYPH_DEBUG */
6763 defsubr (&Sclear_face_cache
);
6764 defsubr (&Stty_suppress_bold_inverse_default_colors
);
6766 #if defined DEBUG_X_COLORS && defined HAVE_X_WINDOWS
6767 defsubr (&Sdump_colors
);
6770 DEFVAR_LISP ("font-list-limit", &Vfont_list_limit
,
6771 "*Limit for font matching.\n\
6772 If an integer > 0, font matching functions won't load more than\n\
6773 that number of fonts when searching for a matching font.");
6774 Vfont_list_limit
= make_number (DEFAULT_FONT_LIST_LIMIT
);
6776 DEFVAR_LISP ("face-new-frame-defaults", &Vface_new_frame_defaults
,
6777 "List of global face definitions (for internal use only.)");
6778 Vface_new_frame_defaults
= Qnil
;
6780 DEFVAR_LISP ("face-default-stipple", &Vface_default_stipple
,
6781 "*Default stipple pattern used on monochrome displays.\n\
6782 This stipple pattern is used on monochrome displays\n\
6783 instead of shades of gray for a face background color.\n\
6784 See `set-face-stipple' for possible values for this variable.");
6785 Vface_default_stipple
= build_string ("gray3");
6787 DEFVAR_LISP ("face-alternative-font-family-alist",
6788 &Vface_alternative_font_family_alist
, "");
6789 Vface_alternative_font_family_alist
= Qnil
;
6793 DEFVAR_LISP ("scalable-fonts-allowed", &Vscalable_fonts_allowed
,
6794 "Allowed scalable fonts.\n\
6795 A value of nil means don't allow any scalable fonts.\n\
6796 A value of t means allow any scalable font.\n\
6797 Otherwise, value must be a list of regular expressions. A font may be\n\
6798 scaled if its name matches a regular expression in the list.");
6800 /* Windows uses mainly truetype fonts, so disallowing scalable fonts
6801 by default limits the fonts available severely. */
6802 Vscalable_fonts_allowed
= Qt
;
6804 Vscalable_fonts_allowed
= Qnil
;
6806 #endif /* SCALABLE_FONTS */
6808 #ifdef HAVE_WINDOW_SYSTEM
6809 defsubr (&Sbitmap_spec_p
);
6810 defsubr (&Sx_list_fonts
);
6811 defsubr (&Sinternal_face_x_get_resource
);
6812 defsubr (&Sx_family_fonts
);
6813 defsubr (&Sx_font_family_list
);
6814 #endif /* HAVE_WINDOW_SYSTEM */