1 /* font.c -- "Font" primitives.
3 Copyright (C) 2006-2011 Free Software Foundation, Inc.
4 Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
5 National Institute of Advanced Industrial Science and Technology (AIST)
6 Registration Number H13PRO009
8 This file is part of GNU Emacs.
10 GNU Emacs is free software: you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation, either version 3 of the License, or
13 (at your option) any later version.
15 GNU Emacs is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
33 #include "dispextern.h"
35 #include "character.h"
36 #include "composite.h"
42 #endif /* HAVE_X_WINDOWS */
46 #endif /* HAVE_NTGUI */
52 Lisp_Object Qopentype
;
54 /* Important character set strings. */
55 Lisp_Object Qascii_0
, Qiso8859_1
, Qiso10646_1
, Qunicode_bmp
, Qunicode_sip
;
57 #define DEFAULT_ENCODING Qiso8859_1
59 /* Unicode category `Cf'. */
60 static Lisp_Object QCf
;
62 /* Special vector of zero length. This is repeatedly used by (struct
63 font_driver *)->list when a specified font is not found. */
64 static Lisp_Object null_vector
;
66 /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */
67 static Lisp_Object font_style_table
;
69 /* Structure used for tables mapping weight, slant, and width numeric
70 values and their names. */
75 /* The first one is a valid name as a face attribute.
76 The second one (if any) is a typical name in XLFD field. */
80 /* Table of weight numeric values and their names. This table must be
81 sorted by numeric values in ascending order. */
83 static const struct table_entry weight_table
[] =
86 { 20, { "ultra-light", "ultralight" }},
87 { 40, { "extra-light", "extralight" }},
89 { 75, { "semi-light", "semilight", "demilight", "book" }},
90 { 100, { "normal", "medium", "regular", "unspecified" }},
91 { 180, { "semi-bold", "semibold", "demibold", "demi" }},
93 { 205, { "extra-bold", "extrabold" }},
94 { 210, { "ultra-bold", "ultrabold", "black" }}
97 /* Table of slant numeric values and their names. This table must be
98 sorted by numeric values in ascending order. */
100 static const struct table_entry slant_table
[] =
102 { 0, { "reverse-oblique", "ro" }},
103 { 10, { "reverse-italic", "ri" }},
104 { 100, { "normal", "r", "unspecified" }},
105 { 200, { "italic" ,"i", "ot" }},
106 { 210, { "oblique", "o" }}
109 /* Table of width numeric values and their names. This table must be
110 sorted by numeric values in ascending order. */
112 static const struct table_entry width_table
[] =
114 { 50, { "ultra-condensed", "ultracondensed" }},
115 { 63, { "extra-condensed", "extracondensed" }},
116 { 75, { "condensed", "compressed", "narrow" }},
117 { 87, { "semi-condensed", "semicondensed", "demicondensed" }},
118 { 100, { "normal", "medium", "regular", "unspecified" }},
119 { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }},
120 { 125, { "expanded" }},
121 { 150, { "extra-expanded", "extraexpanded" }},
122 { 200, { "ultra-expanded", "ultraexpanded", "wide" }}
125 Lisp_Object QCfoundry
;
126 static Lisp_Object QCadstyle
, QCregistry
;
127 /* Symbols representing keys of font extra info. */
128 Lisp_Object QCspacing
, QCdpi
, QCscalable
, QCotf
, QClang
, QCscript
, QCavgwidth
;
129 Lisp_Object QCantialias
, QCfont_entity
;
130 static Lisp_Object QCfc_unknown_spec
;
131 /* Symbols representing values of font spacing property. */
132 static Lisp_Object Qc
, Qm
, Qd
;
134 /* Special ADSTYLE properties to avoid fonts used for Latin
135 characters; used in xfont.c and ftfont.c. */
136 Lisp_Object Qja
, Qko
;
138 static Lisp_Object QCuser_spec
;
140 /* Alist of font registry symbols and the corresponding charset
141 information. The information is retrieved from
142 Vfont_encoding_alist on demand.
144 Eash element has the form:
145 (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID))
149 In the former form, ENCODING-CHARSET-ID is an ID of a charset that
150 encodes a character code to a glyph code of a font, and
151 REPERTORY-CHARSET-ID is an ID of a charset that tells if a
152 character is supported by a font.
154 The latter form means that the information for REGISTRY couldn't be
156 static Lisp_Object font_charset_alist
;
158 /* List of all font drivers. Each font-backend (XXXfont.c) calls
159 register_font_driver in syms_of_XXXfont to register its font-driver
161 static struct font_driver_list
*font_driver_list
;
165 /* Creaters of font-related Lisp object. */
168 font_make_spec (void)
170 Lisp_Object font_spec
;
171 struct font_spec
*spec
172 = ((struct font_spec
*)
173 allocate_pseudovector (VECSIZE (struct font_spec
),
174 FONT_SPEC_MAX
, PVEC_FONT
));
175 XSETFONT (font_spec
, spec
);
180 font_make_entity (void)
182 Lisp_Object font_entity
;
183 struct font_entity
*entity
184 = ((struct font_entity
*)
185 allocate_pseudovector (VECSIZE (struct font_entity
),
186 FONT_ENTITY_MAX
, PVEC_FONT
));
187 XSETFONT (font_entity
, entity
);
191 /* Create a font-object whose structure size is SIZE. If ENTITY is
192 not nil, copy properties from ENTITY to the font-object. If
193 PIXELSIZE is positive, set the `size' property to PIXELSIZE. */
195 font_make_object (int size
, Lisp_Object entity
, int pixelsize
)
197 Lisp_Object font_object
;
199 = (struct font
*) allocate_pseudovector (size
, FONT_OBJECT_MAX
, PVEC_FONT
);
202 XSETFONT (font_object
, font
);
206 for (i
= 1; i
< FONT_SPEC_MAX
; i
++)
207 font
->props
[i
] = AREF (entity
, i
);
208 if (! NILP (AREF (entity
, FONT_EXTRA_INDEX
)))
209 font
->props
[FONT_EXTRA_INDEX
]
210 = Fcopy_alist (AREF (entity
, FONT_EXTRA_INDEX
));
213 font
->props
[FONT_SIZE_INDEX
] = make_number (pixelsize
);
219 static int font_pixel_size (FRAME_PTR f
, Lisp_Object
);
220 static Lisp_Object
font_open_entity (FRAME_PTR
, Lisp_Object
, int);
221 static Lisp_Object
font_matching_entity (FRAME_PTR
, Lisp_Object
*,
223 static unsigned font_encode_char (Lisp_Object
, int);
225 /* Number of registered font drivers. */
226 static int num_font_drivers
;
229 /* Return a Lispy value of a font property value at STR and LEN bytes.
230 If STR is "*", return nil.
231 If FORCE_SYMBOL is zero and all characters in STR are digits,
232 return an integer. Otherwise, return a symbol interned from
236 font_intern_prop (const char *str
, ptrdiff_t len
, int force_symbol
)
241 EMACS_INT nbytes
, nchars
;
243 if (len
== 1 && *str
== '*')
245 if (!force_symbol
&& 0 < len
&& '0' <= *str
&& *str
<= '9')
247 for (i
= 1; i
< len
; i
++)
248 if (! ('0' <= str
[i
] && str
[i
] <= '9'))
255 for (n
= 0; (n
+= str
[i
++] - '0') <= MOST_POSITIVE_FIXNUM
; n
*= 10)
258 return make_number (n
);
259 if (MOST_POSITIVE_FIXNUM
/ 10 < n
)
263 xsignal1 (Qoverflow_error
, make_string (str
, len
));
267 /* The following code is copied from the function intern (in
268 lread.c), and modified to suit our purpose. */
270 if (!VECTORP (obarray
) || ASIZE (obarray
) == 0)
271 obarray
= check_obarray (obarray
);
272 parse_str_as_multibyte ((unsigned char *) str
, len
, &nchars
, &nbytes
);
273 if (len
== nchars
|| len
!= nbytes
)
274 /* CONTENTS contains no multibyte sequences or contains an invalid
275 multibyte sequence. We'll make a unibyte string. */
276 tem
= oblookup (obarray
, str
, len
, len
);
278 tem
= oblookup (obarray
, str
, nchars
, len
);
281 if (len
== nchars
|| len
!= nbytes
)
282 tem
= make_unibyte_string (str
, len
);
284 tem
= make_multibyte_string (str
, nchars
, len
);
285 return Fintern (tem
, obarray
);
288 /* Return a pixel size of font-spec SPEC on frame F. */
291 font_pixel_size (FRAME_PTR f
, Lisp_Object spec
)
293 #ifdef HAVE_WINDOW_SYSTEM
294 Lisp_Object size
= AREF (spec
, FONT_SIZE_INDEX
);
303 font_assert (FLOATP (size
));
304 point_size
= XFLOAT_DATA (size
);
305 val
= AREF (spec
, FONT_DPI_INDEX
);
310 pixel_size
= POINT_TO_PIXEL (point_size
, dpi
);
318 /* Return a value of PROP's VAL (symbol or integer) to be stored in a
319 font vector. If VAL is not valid (i.e. not registered in
320 font_style_table), return -1 if NOERROR is zero, and return a
321 proper index if NOERROR is nonzero. In that case, register VAL in
322 font_style_table if VAL is a symbol, and return the closest index if
323 VAL is an integer. */
326 font_style_to_value (enum font_property_index prop
, Lisp_Object val
, int noerror
)
328 Lisp_Object table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
329 int len
= ASIZE (table
);
335 Lisp_Object args
[2], elt
;
337 /* At first try exact match. */
338 for (i
= 0; i
< len
; i
++)
339 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
340 if (EQ (val
, AREF (AREF (table
, i
), j
)))
341 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
342 | (i
<< 4) | (j
- 1));
343 /* Try also with case-folding match. */
344 s
= SSDATA (SYMBOL_NAME (val
));
345 for (i
= 0; i
< len
; i
++)
346 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
348 elt
= AREF (AREF (table
, i
), j
);
349 if (xstrcasecmp (s
, SSDATA (SYMBOL_NAME (elt
))) == 0)
350 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
351 | (i
<< 4) | (j
- 1));
357 elt
= Fmake_vector (make_number (2), make_number (100));
360 args
[1] = Fmake_vector (make_number (1), elt
);
361 ASET (font_style_table
, prop
- FONT_WEIGHT_INDEX
, Fvconcat (2, args
));
362 return (100 << 8) | (i
<< 4);
367 int numeric
= XINT (val
);
369 for (i
= 0, last_n
= -1; i
< len
; i
++)
371 int n
= XINT (AREF (AREF (table
, i
), 0));
374 return (n
<< 8) | (i
<< 4);
379 return ((i
== 0 || n
- numeric
< numeric
- last_n
)
380 ? (n
<< 8) | (i
<< 4): (last_n
<< 8 | ((i
- 1) << 4)));
386 return ((last_n
<< 8) | ((i
- 1) << 4));
391 font_style_symbolic (Lisp_Object font
, enum font_property_index prop
, int for_face
)
393 Lisp_Object val
= AREF (font
, prop
);
394 Lisp_Object table
, elt
;
399 table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
400 i
= XINT (val
) & 0xFF;
401 font_assert (((i
>> 4) & 0xF) < ASIZE (table
));
402 elt
= AREF (table
, ((i
>> 4) & 0xF));
403 font_assert ((i
& 0xF) + 1 < ASIZE (elt
));
404 return (for_face
? AREF (elt
, 1) : AREF (elt
, (i
& 0xF) + 1));
407 /* Return ENCODING or a cons of ENCODING and REPERTORY of the font
408 FONTNAME. ENCODING is a charset symbol that specifies the encoding
409 of the font. REPERTORY is a charset symbol or nil. */
412 find_font_encoding (Lisp_Object fontname
)
414 Lisp_Object tail
, elt
;
416 for (tail
= Vfont_encoding_alist
; CONSP (tail
); tail
= XCDR (tail
))
420 && STRINGP (XCAR (elt
))
421 && fast_string_match_ignore_case (XCAR (elt
), fontname
) >= 0
422 && (SYMBOLP (XCDR (elt
))
423 ? CHARSETP (XCDR (elt
))
424 : CONSP (XCDR (elt
)) && CHARSETP (XCAR (XCDR (elt
)))))
430 /* Return encoding charset and repertory charset for REGISTRY in
431 ENCODING and REPERTORY correspondingly. If correct information for
432 REGISTRY is available, return 0. Otherwise return -1. */
435 font_registry_charsets (Lisp_Object registry
, struct charset
**encoding
, struct charset
**repertory
)
438 int encoding_id
, repertory_id
;
440 val
= Fassoc_string (registry
, font_charset_alist
, Qt
);
446 encoding_id
= XINT (XCAR (val
));
447 repertory_id
= XINT (XCDR (val
));
451 val
= find_font_encoding (SYMBOL_NAME (registry
));
452 if (SYMBOLP (val
) && CHARSETP (val
))
454 encoding_id
= repertory_id
= XINT (CHARSET_SYMBOL_ID (val
));
456 else if (CONSP (val
))
458 if (! CHARSETP (XCAR (val
)))
460 encoding_id
= XINT (CHARSET_SYMBOL_ID (XCAR (val
)));
461 if (NILP (XCDR (val
)))
465 if (! CHARSETP (XCDR (val
)))
467 repertory_id
= XINT (CHARSET_SYMBOL_ID (XCDR (val
)));
472 val
= Fcons (make_number (encoding_id
), make_number (repertory_id
));
474 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, val
), Qnil
));
478 *encoding
= CHARSET_FROM_ID (encoding_id
);
480 *repertory
= repertory_id
>= 0 ? CHARSET_FROM_ID (repertory_id
) : NULL
;
485 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, Qnil
), Qnil
));
490 /* Font property value validators. See the comment of
491 font_property_table for the meaning of the arguments. */
493 static Lisp_Object
font_prop_validate (int, Lisp_Object
, Lisp_Object
);
494 static Lisp_Object
font_prop_validate_symbol (Lisp_Object
, Lisp_Object
);
495 static Lisp_Object
font_prop_validate_style (Lisp_Object
, Lisp_Object
);
496 static Lisp_Object
font_prop_validate_non_neg (Lisp_Object
, Lisp_Object
);
497 static Lisp_Object
font_prop_validate_spacing (Lisp_Object
, Lisp_Object
);
498 static int get_font_prop_index (Lisp_Object
);
501 font_prop_validate_symbol (Lisp_Object prop
, Lisp_Object val
)
504 val
= Fintern (val
, Qnil
);
507 else if (EQ (prop
, QCregistry
))
508 val
= Fintern (Fdowncase (SYMBOL_NAME (val
)), Qnil
);
514 font_prop_validate_style (Lisp_Object style
, Lisp_Object val
)
516 enum font_property_index prop
= (EQ (style
, QCweight
) ? FONT_WEIGHT_INDEX
517 : EQ (style
, QCslant
) ? FONT_SLANT_INDEX
523 >= ASIZE (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
)))
527 Lisp_Object elt
= AREF (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
), (n
>> 4) & 0xF);
529 if ((n
& 0xF) + 1 >= ASIZE (elt
))
531 else if (XINT (AREF (elt
, 0)) != (n
>> 8))
535 else if (SYMBOLP (val
))
537 int n
= font_style_to_value (prop
, val
, 0);
539 val
= n
>= 0 ? make_number (n
) : Qerror
;
547 font_prop_validate_non_neg (Lisp_Object prop
, Lisp_Object val
)
549 return (NATNUMP (val
) || (FLOATP (val
) && XFLOAT_DATA (val
) >= 0)
554 font_prop_validate_spacing (Lisp_Object prop
, Lisp_Object val
)
556 if (NILP (val
) || (NATNUMP (val
) && XINT (val
) <= FONT_SPACING_CHARCELL
))
558 if (SYMBOLP (val
) && SBYTES (SYMBOL_NAME (val
)) == 1)
560 char spacing
= SDATA (SYMBOL_NAME (val
))[0];
562 if (spacing
== 'c' || spacing
== 'C')
563 return make_number (FONT_SPACING_CHARCELL
);
564 if (spacing
== 'm' || spacing
== 'M')
565 return make_number (FONT_SPACING_MONO
);
566 if (spacing
== 'p' || spacing
== 'P')
567 return make_number (FONT_SPACING_PROPORTIONAL
);
568 if (spacing
== 'd' || spacing
== 'D')
569 return make_number (FONT_SPACING_DUAL
);
575 font_prop_validate_otf (Lisp_Object prop
, Lisp_Object val
)
577 Lisp_Object tail
, tmp
;
580 /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]])
581 GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil
582 GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */
585 if (! SYMBOLP (XCAR (val
)))
590 if (! CONSP (tail
) || ! SYMBOLP (XCAR (val
)))
592 for (i
= 0; i
< 2; i
++)
599 for (tmp
= XCAR (tail
); CONSP (tmp
); tmp
= XCDR (tmp
))
600 if (! SYMBOLP (XCAR (tmp
)))
608 /* Structure of known font property keys and validator of the
612 /* Pointer to the key symbol. */
614 /* Function to validate PROP's value VAL, or NULL if any value is
615 ok. The value is VAL or its regularized value if VAL is valid,
616 and Qerror if not. */
617 Lisp_Object (*validater
) (Lisp_Object prop
, Lisp_Object val
);
618 } font_property_table
[] =
619 { { &QCtype
, font_prop_validate_symbol
},
620 { &QCfoundry
, font_prop_validate_symbol
},
621 { &QCfamily
, font_prop_validate_symbol
},
622 { &QCadstyle
, font_prop_validate_symbol
},
623 { &QCregistry
, font_prop_validate_symbol
},
624 { &QCweight
, font_prop_validate_style
},
625 { &QCslant
, font_prop_validate_style
},
626 { &QCwidth
, font_prop_validate_style
},
627 { &QCsize
, font_prop_validate_non_neg
},
628 { &QCdpi
, font_prop_validate_non_neg
},
629 { &QCspacing
, font_prop_validate_spacing
},
630 { &QCavgwidth
, font_prop_validate_non_neg
},
631 /* The order of the above entries must match with enum
632 font_property_index. */
633 { &QClang
, font_prop_validate_symbol
},
634 { &QCscript
, font_prop_validate_symbol
},
635 { &QCotf
, font_prop_validate_otf
}
638 /* Size (number of elements) of the above table. */
639 #define FONT_PROPERTY_TABLE_SIZE \
640 ((sizeof font_property_table) / (sizeof *font_property_table))
642 /* Return an index number of font property KEY or -1 if KEY is not an
643 already known property. */
646 get_font_prop_index (Lisp_Object key
)
650 for (i
= 0; i
< FONT_PROPERTY_TABLE_SIZE
; i
++)
651 if (EQ (key
, *font_property_table
[i
].key
))
656 /* Validate the font property. The property key is specified by the
657 symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid,
658 signal an error. The value is VAL or the regularized one. */
661 font_prop_validate (int idx
, Lisp_Object prop
, Lisp_Object val
)
663 Lisp_Object validated
;
668 prop
= *font_property_table
[idx
].key
;
671 idx
= get_font_prop_index (prop
);
675 validated
= (font_property_table
[idx
].validater
) (prop
, val
);
676 if (EQ (validated
, Qerror
))
677 signal_error ("invalid font property", Fcons (prop
, val
));
682 /* Store VAL as a value of extra font property PROP in FONT while
683 keeping the sorting order. Don't check the validity of VAL. */
686 font_put_extra (Lisp_Object font
, Lisp_Object prop
, Lisp_Object val
)
688 Lisp_Object extra
= AREF (font
, FONT_EXTRA_INDEX
);
689 Lisp_Object slot
= (NILP (extra
) ? Qnil
: assq_no_quit (prop
, extra
));
693 Lisp_Object prev
= Qnil
;
696 && NILP (Fstring_lessp (prop
, XCAR (XCAR (extra
)))))
697 prev
= extra
, extra
= XCDR (extra
);
700 ASET (font
, FONT_EXTRA_INDEX
, Fcons (Fcons (prop
, val
), extra
));
702 XSETCDR (prev
, Fcons (Fcons (prop
, val
), extra
));
708 ASET (font
, FONT_EXTRA_INDEX
, Fdelq (slot
, extra
));
713 /* Font name parser and unparser */
715 static int parse_matrix (const char *);
716 static int font_expand_wildcards (Lisp_Object
*, int);
717 static int font_parse_name (char *, Lisp_Object
);
719 /* An enumerator for each field of an XLFD font name. */
720 enum xlfd_field_index
739 /* An enumerator for mask bit corresponding to each XLFD field. */
742 XLFD_FOUNDRY_MASK
= 0x0001,
743 XLFD_FAMILY_MASK
= 0x0002,
744 XLFD_WEIGHT_MASK
= 0x0004,
745 XLFD_SLANT_MASK
= 0x0008,
746 XLFD_SWIDTH_MASK
= 0x0010,
747 XLFD_ADSTYLE_MASK
= 0x0020,
748 XLFD_PIXEL_MASK
= 0x0040,
749 XLFD_POINT_MASK
= 0x0080,
750 XLFD_RESX_MASK
= 0x0100,
751 XLFD_RESY_MASK
= 0x0200,
752 XLFD_SPACING_MASK
= 0x0400,
753 XLFD_AVGWIDTH_MASK
= 0x0800,
754 XLFD_REGISTRY_MASK
= 0x1000,
755 XLFD_ENCODING_MASK
= 0x2000
759 /* Parse P pointing to the pixel/point size field of the form
760 `[A B C D]' which specifies a transformation matrix:
766 by which all glyphs of the font are transformed. The spec says
767 that scalar value N for the pixel/point size is equivalent to:
768 A = N * resx/resy, B = C = 0, D = N.
770 Return the scalar value N if the form is valid. Otherwise return
774 parse_matrix (const char *p
)
780 for (i
= 0, p
++; i
< 4 && *p
&& *p
!= ']'; i
++)
783 matrix
[i
] = - strtod (p
+ 1, &end
);
785 matrix
[i
] = strtod (p
, &end
);
788 return (i
== 4 ? (int) matrix
[3] : -1);
791 /* Expand a wildcard field in FIELD (the first N fields are filled) to
792 multiple fields to fill in all 14 XLFD fields while restricting a
793 field position by its contents. */
796 font_expand_wildcards (Lisp_Object
*field
, int n
)
799 Lisp_Object tmp
[XLFD_LAST_INDEX
];
800 /* Array of information about where this element can go. Nth
801 element is for Nth element of FIELD. */
803 /* Minimum possible field. */
805 /* Maxinum possible field. */
807 /* Bit mask of possible field. Nth bit corresponds to Nth field. */
809 } range
[XLFD_LAST_INDEX
];
811 int range_from
, range_to
;
814 #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \
815 | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK)
816 #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK)
817 #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \
818 | XLFD_AVGWIDTH_MASK)
819 #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK)
821 /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th
822 field. The value is shifted to left one bit by one in the
824 for (i
= 0, range_mask
= 0; i
<= 14 - n
; i
++)
825 range_mask
= (range_mask
<< 1) | 1;
827 /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a
828 position-based retriction for FIELD[I]. */
829 for (i
= 0, range_from
= 0, range_to
= 14 - n
; i
< n
;
830 i
++, range_from
++, range_to
++, range_mask
<<= 1)
832 Lisp_Object val
= field
[i
];
838 range
[i
].from
= range_from
;
839 range
[i
].to
= range_to
;
840 range
[i
].mask
= range_mask
;
844 /* The triplet FROM, TO, and MASK is a value-based
845 retriction for FIELD[I]. */
851 int numeric
= XINT (val
);
854 from
= to
= XLFD_ENCODING_INDEX
,
855 mask
= XLFD_ENCODING_MASK
;
856 else if (numeric
== 0)
857 from
= XLFD_PIXEL_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
858 mask
= XLFD_PIXEL_MASK
| XLFD_LARGENUM_MASK
;
859 else if (numeric
<= 48)
860 from
= to
= XLFD_PIXEL_INDEX
,
861 mask
= XLFD_PIXEL_MASK
;
863 from
= XLFD_POINT_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
864 mask
= XLFD_LARGENUM_MASK
;
866 else if (SBYTES (SYMBOL_NAME (val
)) == 0)
867 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ADSTYLE_INDEX
,
868 mask
= XLFD_NULL_MASK
;
870 from
= to
= XLFD_FOUNDRY_INDEX
, mask
= XLFD_FOUNDRY_MASK
;
873 Lisp_Object name
= SYMBOL_NAME (val
);
875 if (SDATA (name
)[SBYTES (name
) - 1] == '*')
876 from
= XLFD_REGISTRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
877 mask
= XLFD_REGENC_MASK
;
879 from
= to
= XLFD_ENCODING_INDEX
,
880 mask
= XLFD_ENCODING_MASK
;
882 else if (range_from
<= XLFD_WEIGHT_INDEX
883 && range_to
>= XLFD_WEIGHT_INDEX
884 && FONT_WEIGHT_NAME_NUMERIC (val
) >= 0)
885 from
= to
= XLFD_WEIGHT_INDEX
, mask
= XLFD_WEIGHT_MASK
;
886 else if (range_from
<= XLFD_SLANT_INDEX
887 && range_to
>= XLFD_SLANT_INDEX
888 && FONT_SLANT_NAME_NUMERIC (val
) >= 0)
889 from
= to
= XLFD_SLANT_INDEX
, mask
= XLFD_SLANT_MASK
;
890 else if (range_from
<= XLFD_SWIDTH_INDEX
891 && range_to
>= XLFD_SWIDTH_INDEX
892 && FONT_WIDTH_NAME_NUMERIC (val
) >= 0)
893 from
= to
= XLFD_SWIDTH_INDEX
, mask
= XLFD_SWIDTH_MASK
;
896 if (EQ (val
, Qc
) || EQ (val
, Qm
) || EQ (val
, Qp
) || EQ (val
, Qd
))
897 from
= to
= XLFD_SPACING_INDEX
, mask
= XLFD_SPACING_MASK
;
899 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
900 mask
= XLFD_SYMBOL_MASK
;
903 /* Merge position-based and value-based restrictions. */
905 while (from
< range_from
)
906 mask
&= ~(1 << from
++);
907 while (from
< 14 && ! (mask
& (1 << from
)))
909 while (to
> range_to
)
910 mask
&= ~(1 << to
--);
911 while (to
>= 0 && ! (mask
& (1 << to
)))
915 range
[i
].from
= from
;
917 range
[i
].mask
= mask
;
919 if (from
> range_from
|| to
< range_to
)
921 /* The range is narrowed by value-based restrictions.
922 Reflect it to the other fields. */
924 /* Following fields should be after FROM. */
926 /* Preceding fields should be before TO. */
927 for (j
= i
- 1, from
--, to
--; j
>= 0; j
--, from
--, to
--)
929 /* Check FROM for non-wildcard field. */
930 if (! NILP (tmp
[j
]) && range
[j
].from
< from
)
932 while (range
[j
].from
< from
)
933 range
[j
].mask
&= ~(1 << range
[j
].from
++);
934 while (from
< 14 && ! (range
[j
].mask
& (1 << from
)))
936 range
[j
].from
= from
;
939 from
= range
[j
].from
;
940 if (range
[j
].to
> to
)
942 while (range
[j
].to
> to
)
943 range
[j
].mask
&= ~(1 << range
[j
].to
--);
944 while (to
>= 0 && ! (range
[j
].mask
& (1 << to
)))
957 /* Decide all fileds from restrictions in RANGE. */
958 for (i
= j
= 0; i
< n
; i
++)
960 if (j
< range
[i
].from
)
962 if (i
== 0 || ! NILP (tmp
[i
- 1]))
963 /* None of TMP[X] corresponds to Jth field. */
965 for (; j
< range
[i
].from
; j
++)
970 if (! NILP (tmp
[n
- 1]) && j
< XLFD_REGISTRY_INDEX
)
972 for (; j
< XLFD_LAST_INDEX
; j
++)
974 if (INTEGERP (field
[XLFD_ENCODING_INDEX
]))
975 field
[XLFD_ENCODING_INDEX
]
976 = Fintern (Fnumber_to_string (field
[XLFD_ENCODING_INDEX
]), Qnil
);
981 /* Parse NAME (null terminated) as XLFD and store information in FONT
982 (font-spec or font-entity). Size property of FONT is set as
984 specified XLFD fields FONT property
985 --------------------- -------------
986 PIXEL_SIZE PIXEL_SIZE (Lisp integer)
987 POINT_SIZE and RESY calculated pixel size (Lisp integer)
988 POINT_SIZE POINT_SIZE/10 (Lisp float)
990 If NAME is successfully parsed, return 0. Otherwise return -1.
992 FONT is usually a font-spec, but when this function is called from
993 X font backend driver, it is a font-entity. In that case, NAME is
994 a fully specified XLFD. */
997 font_parse_xlfd (char *name
, Lisp_Object font
)
999 ptrdiff_t len
= strlen (name
);
1001 char *f
[XLFD_LAST_INDEX
+ 1];
1005 if (len
> 255 || !len
)
1006 /* Maximum XLFD name length is 255. */
1008 /* Accept "*-.." as a fully specified XLFD. */
1009 if (name
[0] == '*' && (len
== 1 || name
[1] == '-'))
1010 i
= 1, f
[XLFD_FOUNDRY_INDEX
] = name
;
1013 for (p
= name
+ i
; *p
; p
++)
1017 if (i
== XLFD_LAST_INDEX
)
1022 #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0)
1023 #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1)
1025 if (i
== XLFD_LAST_INDEX
)
1027 /* Fully specified XLFD. */
1030 ASET (font
, FONT_FOUNDRY_INDEX
, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX
));
1031 ASET (font
, FONT_FAMILY_INDEX
, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX
));
1032 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1033 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1035 val
= INTERN_FIELD_SYM (i
);
1038 if ((n
= font_style_to_value (j
, INTERN_FIELD_SYM (i
), 0)) < 0)
1040 ASET (font
, j
, make_number (n
));
1043 ASET (font
, FONT_ADSTYLE_INDEX
, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX
));
1044 if (strcmp (f
[XLFD_REGISTRY_INDEX
], "*-*") == 0)
1045 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
1047 ASET (font
, FONT_REGISTRY_INDEX
,
1048 font_intern_prop (f
[XLFD_REGISTRY_INDEX
],
1049 f
[XLFD_LAST_INDEX
] - f
[XLFD_REGISTRY_INDEX
],
1051 p
= f
[XLFD_PIXEL_INDEX
];
1052 if (*p
== '[' && (pixel_size
= parse_matrix (p
)) >= 0)
1053 ASET (font
, FONT_SIZE_INDEX
, make_number (pixel_size
));
1056 val
= INTERN_FIELD (XLFD_PIXEL_INDEX
);
1058 ASET (font
, FONT_SIZE_INDEX
, val
);
1059 else if (FONT_ENTITY_P (font
))
1063 double point_size
= -1;
1065 font_assert (FONT_SPEC_P (font
));
1066 p
= f
[XLFD_POINT_INDEX
];
1068 point_size
= parse_matrix (p
);
1069 else if (isdigit (*p
))
1070 point_size
= atoi (p
), point_size
/= 10;
1071 if (point_size
>= 0)
1072 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1076 val
= INTERN_FIELD (XLFD_RESY_INDEX
);
1077 if (! NILP (val
) && ! INTEGERP (val
))
1079 ASET (font
, FONT_DPI_INDEX
, val
);
1080 val
= INTERN_FIELD (XLFD_SPACING_INDEX
);
1083 val
= font_prop_validate_spacing (QCspacing
, val
);
1084 if (! INTEGERP (val
))
1086 ASET (font
, FONT_SPACING_INDEX
, val
);
1088 p
= f
[XLFD_AVGWIDTH_INDEX
];
1091 val
= font_intern_prop (p
, f
[XLFD_REGISTRY_INDEX
] - 1 - p
, 0);
1092 if (! NILP (val
) && ! INTEGERP (val
))
1094 ASET (font
, FONT_AVGWIDTH_INDEX
, val
);
1098 int wild_card_found
= 0;
1099 Lisp_Object prop
[XLFD_LAST_INDEX
];
1101 if (FONT_ENTITY_P (font
))
1103 for (j
= 0; j
< i
; j
++)
1107 if (f
[j
][1] && f
[j
][1] != '-')
1110 wild_card_found
= 1;
1113 prop
[j
] = INTERN_FIELD (j
);
1115 prop
[j
] = font_intern_prop (f
[j
], f
[i
] - f
[j
], 0);
1117 if (! wild_card_found
)
1119 if (font_expand_wildcards (prop
, i
) < 0)
1122 ASET (font
, FONT_FOUNDRY_INDEX
, prop
[XLFD_FOUNDRY_INDEX
]);
1123 ASET (font
, FONT_FAMILY_INDEX
, prop
[XLFD_FAMILY_INDEX
]);
1124 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1125 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1126 if (! NILP (prop
[i
]))
1128 if ((n
= font_style_to_value (j
, prop
[i
], 1)) < 0)
1130 ASET (font
, j
, make_number (n
));
1132 ASET (font
, FONT_ADSTYLE_INDEX
, prop
[XLFD_ADSTYLE_INDEX
]);
1133 val
= prop
[XLFD_REGISTRY_INDEX
];
1136 val
= prop
[XLFD_ENCODING_INDEX
];
1138 val
= concat2 (build_string ("*-"), SYMBOL_NAME (val
));
1140 else if (NILP (prop
[XLFD_ENCODING_INDEX
]))
1141 val
= concat2 (SYMBOL_NAME (val
), build_string ("-*"));
1143 val
= concat3 (SYMBOL_NAME (val
), build_string ("-"),
1144 SYMBOL_NAME (prop
[XLFD_ENCODING_INDEX
]));
1146 ASET (font
, FONT_REGISTRY_INDEX
, Fintern (val
, Qnil
));
1148 if (INTEGERP (prop
[XLFD_PIXEL_INDEX
]))
1149 ASET (font
, FONT_SIZE_INDEX
, prop
[XLFD_PIXEL_INDEX
]);
1150 else if (INTEGERP (prop
[XLFD_POINT_INDEX
]))
1152 double point_size
= XINT (prop
[XLFD_POINT_INDEX
]);
1154 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
/ 10));
1157 if (INTEGERP (prop
[XLFD_RESX_INDEX
]))
1158 ASET (font
, FONT_DPI_INDEX
, prop
[XLFD_RESY_INDEX
]);
1159 if (! NILP (prop
[XLFD_SPACING_INDEX
]))
1161 val
= font_prop_validate_spacing (QCspacing
,
1162 prop
[XLFD_SPACING_INDEX
]);
1163 if (! INTEGERP (val
))
1165 ASET (font
, FONT_SPACING_INDEX
, val
);
1167 if (INTEGERP (prop
[XLFD_AVGWIDTH_INDEX
]))
1168 ASET (font
, FONT_AVGWIDTH_INDEX
, prop
[XLFD_AVGWIDTH_INDEX
]);
1174 /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES
1175 length), and return the name length. If FONT_SIZE_INDEX of FONT is
1176 0, use PIXEL_SIZE instead. */
1179 font_unparse_xlfd (Lisp_Object font
, int pixel_size
, char *name
, int nbytes
)
1182 const char *f
[XLFD_REGISTRY_INDEX
+ 1];
1186 font_assert (FONTP (font
));
1188 for (i
= FONT_FOUNDRY_INDEX
, j
= XLFD_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
;
1191 if (i
== FONT_ADSTYLE_INDEX
)
1192 j
= XLFD_ADSTYLE_INDEX
;
1193 else if (i
== FONT_REGISTRY_INDEX
)
1194 j
= XLFD_REGISTRY_INDEX
;
1195 val
= AREF (font
, i
);
1198 if (j
== XLFD_REGISTRY_INDEX
)
1206 val
= SYMBOL_NAME (val
);
1207 if (j
== XLFD_REGISTRY_INDEX
1208 && ! strchr (SSDATA (val
), '-'))
1210 /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */
1211 ptrdiff_t alloc
= SBYTES (val
) + 4;
1212 if (nbytes
<= alloc
)
1214 f
[j
] = p
= alloca (alloc
);
1215 sprintf (p
, "%s%s-*", SDATA (val
),
1216 "*" + (SDATA (val
)[SBYTES (val
) - 1] == '*'));
1219 f
[j
] = SSDATA (val
);
1223 for (i
= FONT_WEIGHT_INDEX
, j
= XLFD_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
;
1226 val
= font_style_symbolic (font
, i
, 0);
1231 val
= SYMBOL_NAME (val
);
1232 f
[j
] = SSDATA (val
);
1236 val
= AREF (font
, FONT_SIZE_INDEX
);
1237 font_assert (NUMBERP (val
) || NILP (val
));
1240 EMACS_INT v
= XINT (val
);
1245 f
[XLFD_PIXEL_INDEX
] = p
=
1246 alloca (sizeof "-*" + INT_STRLEN_BOUND (EMACS_INT
));
1247 sprintf (p
, "%"pI
"d-*", v
);
1250 f
[XLFD_PIXEL_INDEX
] = "*-*";
1252 else if (FLOATP (val
))
1254 double v
= XFLOAT_DATA (val
) * 10;
1255 f
[XLFD_PIXEL_INDEX
] = p
= alloca (sizeof "*-" + 1 + DBL_MAX_10_EXP
+ 1);
1256 sprintf (p
, "*-%.0f", v
);
1259 f
[XLFD_PIXEL_INDEX
] = "*-*";
1261 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1263 EMACS_INT v
= XINT (AREF (font
, FONT_DPI_INDEX
));
1264 f
[XLFD_RESX_INDEX
] = p
=
1265 alloca (sizeof "-" + 2 * INT_STRLEN_BOUND (EMACS_INT
));
1266 sprintf (p
, "%"pI
"d-%"pI
"d", v
, v
);
1269 f
[XLFD_RESX_INDEX
] = "*-*";
1270 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1272 EMACS_INT spacing
= XINT (AREF (font
, FONT_SPACING_INDEX
));
1274 f
[XLFD_SPACING_INDEX
] = (spacing
<= FONT_SPACING_PROPORTIONAL
? "p"
1275 : spacing
<= FONT_SPACING_DUAL
? "d"
1276 : spacing
<= FONT_SPACING_MONO
? "m"
1280 f
[XLFD_SPACING_INDEX
] = "*";
1281 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1283 f
[XLFD_AVGWIDTH_INDEX
] = p
= alloca (INT_BUFSIZE_BOUND (EMACS_INT
));
1284 sprintf (p
, "%"pI
"d", XINT (AREF (font
, FONT_AVGWIDTH_INDEX
)));
1287 f
[XLFD_AVGWIDTH_INDEX
] = "*";
1288 len
= snprintf (name
, nbytes
, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
1289 f
[XLFD_FOUNDRY_INDEX
], f
[XLFD_FAMILY_INDEX
],
1290 f
[XLFD_WEIGHT_INDEX
], f
[XLFD_SLANT_INDEX
],
1291 f
[XLFD_SWIDTH_INDEX
], f
[XLFD_ADSTYLE_INDEX
],
1292 f
[XLFD_PIXEL_INDEX
], f
[XLFD_RESX_INDEX
],
1293 f
[XLFD_SPACING_INDEX
], f
[XLFD_AVGWIDTH_INDEX
],
1294 f
[XLFD_REGISTRY_INDEX
]);
1295 return len
< nbytes
? len
: -1;
1298 /* Parse NAME (null terminated) and store information in FONT
1299 (font-spec or font-entity). NAME is supplied in either the
1300 Fontconfig or GTK font name format. If NAME is successfully
1301 parsed, return 0. Otherwise return -1.
1303 The fontconfig format is
1305 FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]]
1309 FAMILY [PROPS...] [SIZE]
1311 This function tries to guess which format it is. */
1314 font_parse_fcname (char *name
, Lisp_Object font
)
1317 char *size_beg
= NULL
, *size_end
= NULL
;
1318 char *props_beg
= NULL
, *family_end
= NULL
;
1319 ptrdiff_t len
= strlen (name
);
1324 for (p
= name
; *p
; p
++)
1326 if (*p
== '\\' && p
[1])
1330 props_beg
= family_end
= p
;
1335 int decimal
= 0, size_found
= 1;
1336 for (q
= p
+ 1; *q
&& *q
!= ':'; q
++)
1339 if (*q
!= '.' || decimal
)
1358 Lisp_Object extra_props
= Qnil
;
1360 /* A fontconfig name with size and/or property data. */
1361 if (family_end
> name
)
1364 family
= font_intern_prop (name
, family_end
- name
, 1);
1365 ASET (font
, FONT_FAMILY_INDEX
, family
);
1369 double point_size
= strtod (size_beg
, &size_end
);
1370 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1371 if (*size_end
== ':' && size_end
[1])
1372 props_beg
= size_end
;
1376 /* Now parse ":KEY=VAL" patterns. */
1379 for (p
= props_beg
; *p
; p
= q
)
1381 for (q
= p
+ 1; *q
&& *q
!= '=' && *q
!= ':'; q
++);
1384 /* Must be an enumerated value. */
1388 val
= font_intern_prop (p
, q
- p
, 1);
1390 #define PROP_MATCH(STR) (word_len == strlen (STR) \
1391 && memcmp (p, STR, strlen (STR)) == 0)
1393 if (PROP_MATCH ("light")
1394 || PROP_MATCH ("medium")
1395 || PROP_MATCH ("demibold")
1396 || PROP_MATCH ("bold")
1397 || PROP_MATCH ("black"))
1398 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, val
);
1399 else if (PROP_MATCH ("roman")
1400 || PROP_MATCH ("italic")
1401 || PROP_MATCH ("oblique"))
1402 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, val
);
1403 else if (PROP_MATCH ("charcell"))
1404 ASET (font
, FONT_SPACING_INDEX
,
1405 make_number (FONT_SPACING_CHARCELL
));
1406 else if (PROP_MATCH ("mono"))
1407 ASET (font
, FONT_SPACING_INDEX
,
1408 make_number (FONT_SPACING_MONO
));
1409 else if (PROP_MATCH ("proportional"))
1410 ASET (font
, FONT_SPACING_INDEX
,
1411 make_number (FONT_SPACING_PROPORTIONAL
));
1420 if (q
- p
== 10 && memcmp (p
+ 1, "pixelsize", 9) == 0)
1421 prop
= FONT_SIZE_INDEX
;
1424 key
= font_intern_prop (p
, q
- p
, 1);
1425 prop
= get_font_prop_index (key
);
1429 for (q
= p
; *q
&& *q
!= ':'; q
++);
1430 val
= font_intern_prop (p
, q
- p
, 0);
1432 if (prop
>= FONT_FOUNDRY_INDEX
1433 && prop
< FONT_EXTRA_INDEX
)
1434 ASET (font
, prop
, font_prop_validate (prop
, Qnil
, val
));
1437 extra_props
= nconc2 (extra_props
,
1438 Fcons (Fcons (key
, val
), Qnil
));
1445 if (! NILP (extra_props
))
1447 struct font_driver_list
*driver_list
= font_driver_list
;
1448 for ( ; driver_list
; driver_list
= driver_list
->next
)
1449 if (driver_list
->driver
->filter_properties
)
1450 (*driver_list
->driver
->filter_properties
) (font
, extra_props
);
1456 /* Either a fontconfig-style name with no size and property
1457 data, or a GTK-style name. */
1458 Lisp_Object weight
= Qnil
, slant
= Qnil
;
1459 Lisp_Object width
= Qnil
, size
= Qnil
;
1463 /* Scan backwards from the end, looking for a size. */
1464 for (p
= name
+ len
- 1; p
>= name
; p
--)
1468 if ((p
< name
+ len
- 1) && ((p
+ 1 == name
) || *p
== ' '))
1469 /* Found a font size. */
1470 size
= make_float (strtod (p
+ 1, NULL
));
1474 /* Now P points to the termination of the string, sans size.
1475 Scan backwards, looking for font properties. */
1476 for (; p
> name
; p
= q
)
1478 for (q
= p
- 1; q
>= name
; q
--)
1480 if (q
> name
&& *(q
-1) == '\\')
1481 --q
; /* Skip quoting backslashes. */
1487 word_len
= p
- word_start
;
1489 #define PROP_MATCH(STR) \
1490 (word_len == strlen (STR) \
1491 && memcmp (word_start, STR, strlen (STR)) == 0)
1492 #define PROP_SAVE(VAR, STR) \
1493 (VAR = NILP (VAR) ? font_intern_prop (STR, strlen (STR), 1) : VAR)
1495 if (PROP_MATCH ("Ultra-Light"))
1496 PROP_SAVE (weight
, "ultra-light");
1497 else if (PROP_MATCH ("Light"))
1498 PROP_SAVE (weight
, "light");
1499 else if (PROP_MATCH ("Book"))
1500 PROP_SAVE (weight
, "book");
1501 else if (PROP_MATCH ("Medium"))
1502 PROP_SAVE (weight
, "medium");
1503 else if (PROP_MATCH ("Semi-Bold"))
1504 PROP_SAVE (weight
, "semi-bold");
1505 else if (PROP_MATCH ("Bold"))
1506 PROP_SAVE (weight
, "bold");
1507 else if (PROP_MATCH ("Italic"))
1508 PROP_SAVE (slant
, "italic");
1509 else if (PROP_MATCH ("Oblique"))
1510 PROP_SAVE (slant
, "oblique");
1511 else if (PROP_MATCH ("Semi-Condensed"))
1512 PROP_SAVE (width
, "semi-condensed");
1513 else if (PROP_MATCH ("Condensed"))
1514 PROP_SAVE (width
, "condensed");
1515 /* An unknown word must be part of the font name. */
1526 ASET (font
, FONT_FAMILY_INDEX
,
1527 font_intern_prop (name
, family_end
- name
, 1));
1529 ASET (font
, FONT_SIZE_INDEX
, size
);
1531 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, weight
);
1533 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, slant
);
1535 FONT_SET_STYLE (font
, FONT_WIDTH_INDEX
, width
);
1541 /* Store fontconfig's font name of FONT (font-spec or font-entity) in
1542 NAME (NBYTES length), and return the name length. If
1543 FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */
1546 font_unparse_fcname (Lisp_Object font
, int pixel_size
, char *name
, int nbytes
)
1548 Lisp_Object family
, foundry
;
1554 Lisp_Object styles
[3];
1555 const char *style_names
[3] = { "weight", "slant", "width" };
1557 family
= AREF (font
, FONT_FAMILY_INDEX
);
1558 if (! NILP (family
))
1560 if (SYMBOLP (family
))
1561 family
= SYMBOL_NAME (family
);
1566 val
= AREF (font
, FONT_SIZE_INDEX
);
1569 if (XINT (val
) != 0)
1570 pixel_size
= XINT (val
);
1578 point_size
= (int) XFLOAT_DATA (val
);
1581 foundry
= AREF (font
, FONT_FOUNDRY_INDEX
);
1582 if (! NILP (foundry
))
1584 if (SYMBOLP (foundry
))
1585 foundry
= SYMBOL_NAME (foundry
);
1590 for (i
= 0; i
< 3; i
++)
1591 styles
[i
] = font_style_symbolic (font
, FONT_WEIGHT_INDEX
+ i
, 0);
1594 lim
= name
+ nbytes
;
1595 if (! NILP (family
))
1597 int len
= snprintf (p
, lim
- p
, "%s", SSDATA (family
));
1598 if (! (0 <= len
&& len
< lim
- p
))
1604 int len
= snprintf (p
, lim
- p
, "-%d" + (p
== name
), point_size
);
1605 if (! (0 <= len
&& len
< lim
- p
))
1609 else if (pixel_size
> 0)
1611 int len
= snprintf (p
, lim
- p
, ":pixelsize=%d", pixel_size
);
1612 if (! (0 <= len
&& len
< lim
- p
))
1616 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
1618 int len
= snprintf (p
, lim
- p
, ":foundry=%s",
1619 SSDATA (SYMBOL_NAME (AREF (font
,
1620 FONT_FOUNDRY_INDEX
))));
1621 if (! (0 <= len
&& len
< lim
- p
))
1625 for (i
= 0; i
< 3; i
++)
1626 if (! NILP (styles
[i
]))
1628 int len
= snprintf (p
, lim
- p
, ":%s=%s", style_names
[i
],
1629 SSDATA (SYMBOL_NAME (styles
[i
])));
1630 if (! (0 <= len
&& len
< lim
- p
))
1635 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1637 int len
= snprintf (p
, lim
- p
, ":dpi=%"pI
"d",
1638 XINT (AREF (font
, FONT_DPI_INDEX
)));
1639 if (! (0 <= len
&& len
< lim
- p
))
1644 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1646 int len
= snprintf (p
, lim
- p
, ":spacing=%"pI
"d",
1647 XINT (AREF (font
, FONT_SPACING_INDEX
)));
1648 if (! (0 <= len
&& len
< lim
- p
))
1653 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1655 int len
= snprintf (p
, lim
- p
,
1656 (XINT (AREF (font
, FONT_AVGWIDTH_INDEX
)) == 0
1658 : ":scalable=false"));
1659 if (! (0 <= len
&& len
< lim
- p
))
1667 /* Parse NAME (null terminated) and store information in FONT
1668 (font-spec or font-entity). If NAME is successfully parsed, return
1669 0. Otherwise return -1. */
1672 font_parse_name (char *name
, Lisp_Object font
)
1674 if (name
[0] == '-' || strchr (name
, '*') || strchr (name
, '?'))
1675 return font_parse_xlfd (name
, font
);
1676 return font_parse_fcname (name
, font
);
1680 /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form
1681 "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding
1685 font_parse_family_registry (Lisp_Object family
, Lisp_Object registry
, Lisp_Object font_spec
)
1691 && NILP (AREF (font_spec
, FONT_FAMILY_INDEX
)))
1693 CHECK_STRING (family
);
1694 len
= SBYTES (family
);
1695 p0
= SSDATA (family
);
1696 p1
= strchr (p0
, '-');
1699 if ((*p0
!= '*' && p1
- p0
> 0)
1700 && NILP (AREF (font_spec
, FONT_FOUNDRY_INDEX
)))
1701 Ffont_put (font_spec
, QCfoundry
, font_intern_prop (p0
, p1
- p0
, 1));
1704 Ffont_put (font_spec
, QCfamily
, font_intern_prop (p1
, len
, 1));
1707 ASET (font_spec
, FONT_FAMILY_INDEX
, Fintern (family
, Qnil
));
1709 if (! NILP (registry
))
1711 /* Convert "XXX" and "XXX*" to "XXX*-*". */
1712 CHECK_STRING (registry
);
1713 len
= SBYTES (registry
);
1714 p0
= SSDATA (registry
);
1715 p1
= strchr (p0
, '-');
1718 if (SDATA (registry
)[len
- 1] == '*')
1719 registry
= concat2 (registry
, build_string ("-*"));
1721 registry
= concat2 (registry
, build_string ("*-*"));
1723 registry
= Fdowncase (registry
);
1724 ASET (font_spec
, FONT_REGISTRY_INDEX
, Fintern (registry
, Qnil
));
1729 /* This part (through the next ^L) is still experimental and not
1730 tested much. We may drastically change codes. */
1736 #define LGSTRING_HEADER_SIZE 6
1737 #define LGSTRING_GLYPH_SIZE 8
1740 check_gstring (Lisp_Object gstring
)
1745 CHECK_VECTOR (gstring
);
1746 val
= AREF (gstring
, 0);
1748 if (ASIZE (val
) < LGSTRING_HEADER_SIZE
)
1750 CHECK_FONT_OBJECT (LGSTRING_FONT (gstring
));
1751 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
)))
1752 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
));
1753 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
)))
1754 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
));
1755 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
)))
1756 CHECK_NATNUM (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
));
1757 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1758 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1759 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1760 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1762 for (i
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
1764 val
= LGSTRING_GLYPH (gstring
, i
);
1766 if (ASIZE (val
) < LGSTRING_GLYPH_SIZE
)
1768 if (NILP (AREF (val
, LGLYPH_IX_CHAR
)))
1770 CHECK_NATNUM (AREF (val
, LGLYPH_IX_FROM
));
1771 CHECK_NATNUM (AREF (val
, LGLYPH_IX_TO
));
1772 CHECK_CHARACTER (AREF (val
, LGLYPH_IX_CHAR
));
1773 if (!NILP (AREF (val
, LGLYPH_IX_CODE
)))
1774 CHECK_NATNUM (AREF (val
, LGLYPH_IX_CODE
));
1775 if (!NILP (AREF (val
, LGLYPH_IX_WIDTH
)))
1776 CHECK_NATNUM (AREF (val
, LGLYPH_IX_WIDTH
));
1777 if (!NILP (AREF (val
, LGLYPH_IX_ADJUSTMENT
)))
1779 val
= AREF (val
, LGLYPH_IX_ADJUSTMENT
);
1781 if (ASIZE (val
) < 3)
1783 for (j
= 0; j
< 3; j
++)
1784 CHECK_NUMBER (AREF (val
, j
));
1789 error ("Invalid glyph-string format");
1794 check_otf_features (Lisp_Object otf_features
)
1798 CHECK_CONS (otf_features
);
1799 CHECK_SYMBOL (XCAR (otf_features
));
1800 otf_features
= XCDR (otf_features
);
1801 CHECK_CONS (otf_features
);
1802 CHECK_SYMBOL (XCAR (otf_features
));
1803 otf_features
= XCDR (otf_features
);
1804 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1806 CHECK_SYMBOL (Fcar (val
));
1807 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1808 error ("Invalid OTF GSUB feature: %s",
1809 SDATA (SYMBOL_NAME (XCAR (val
))));
1811 otf_features
= XCDR (otf_features
);
1812 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1814 CHECK_SYMBOL (Fcar (val
));
1815 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1816 error ("Invalid OTF GPOS feature: %s",
1817 SDATA (SYMBOL_NAME (XCAR (val
))));
1824 Lisp_Object otf_list
;
1827 otf_tag_symbol (OTF_Tag tag
)
1831 OTF_tag_name (tag
, name
);
1832 return Fintern (make_unibyte_string (name
, 4), Qnil
);
1836 otf_open (Lisp_Object file
)
1838 Lisp_Object val
= Fassoc (file
, otf_list
);
1842 otf
= XSAVE_VALUE (XCDR (val
))->pointer
;
1845 otf
= STRINGP (file
) ? OTF_open (SSDATA (file
)) : NULL
;
1846 val
= make_save_value (otf
, 0);
1847 otf_list
= Fcons (Fcons (file
, val
), otf_list
);
1853 /* Return a list describing which scripts/languages FONT supports by
1854 which GSUB/GPOS features of OpenType tables. See the comment of
1855 (struct font_driver).otf_capability. */
1858 font_otf_capability (struct font
*font
)
1861 Lisp_Object capability
= Fcons (Qnil
, Qnil
);
1864 otf
= otf_open (font
->props
[FONT_FILE_INDEX
]);
1867 for (i
= 0; i
< 2; i
++)
1869 OTF_GSUB_GPOS
*gsub_gpos
;
1870 Lisp_Object script_list
= Qnil
;
1873 if (OTF_get_features (otf
, i
== 0) < 0)
1875 gsub_gpos
= i
== 0 ? otf
->gsub
: otf
->gpos
;
1876 for (j
= gsub_gpos
->ScriptList
.ScriptCount
- 1; j
>= 0; j
--)
1878 OTF_Script
*script
= gsub_gpos
->ScriptList
.Script
+ j
;
1879 Lisp_Object langsys_list
= Qnil
;
1880 Lisp_Object script_tag
= otf_tag_symbol (script
->ScriptTag
);
1883 for (k
= script
->LangSysCount
; k
>= 0; k
--)
1885 OTF_LangSys
*langsys
;
1886 Lisp_Object feature_list
= Qnil
;
1887 Lisp_Object langsys_tag
;
1890 if (k
== script
->LangSysCount
)
1892 langsys
= &script
->DefaultLangSys
;
1897 langsys
= script
->LangSys
+ k
;
1899 = otf_tag_symbol (script
->LangSysRecord
[k
].LangSysTag
);
1901 for (l
= langsys
->FeatureCount
- 1; l
>= 0; l
--)
1903 OTF_Feature
*feature
1904 = gsub_gpos
->FeatureList
.Feature
+ langsys
->FeatureIndex
[l
];
1905 Lisp_Object feature_tag
1906 = otf_tag_symbol (feature
->FeatureTag
);
1908 feature_list
= Fcons (feature_tag
, feature_list
);
1910 langsys_list
= Fcons (Fcons (langsys_tag
, feature_list
),
1913 script_list
= Fcons (Fcons (script_tag
, langsys_list
),
1918 XSETCAR (capability
, script_list
);
1920 XSETCDR (capability
, script_list
);
1926 /* Parse OTF features in SPEC and write a proper features spec string
1927 in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is
1928 assured that the sufficient memory has already allocated for
1932 generate_otf_features (Lisp_Object spec
, char *features
)
1940 for (asterisk
= 0; CONSP (spec
); spec
= XCDR (spec
))
1946 if (SREF (SYMBOL_NAME (val
), 0) == '*')
1951 else if (! asterisk
)
1953 val
= SYMBOL_NAME (val
);
1954 p
+= esprintf (p
, "%s", SDATA (val
));
1958 val
= SYMBOL_NAME (val
);
1959 p
+= esprintf (p
, "~%s", SDATA (val
));
1963 error ("OTF spec too long");
1967 font_otf_DeviceTable (OTF_DeviceTable
*device_table
)
1969 int len
= device_table
->StartSize
- device_table
->EndSize
+ 1;
1971 return Fcons (make_number (len
),
1972 make_unibyte_string (device_table
->DeltaValue
, len
));
1976 font_otf_ValueRecord (int value_format
, OTF_ValueRecord
*value_record
)
1978 Lisp_Object val
= Fmake_vector (make_number (8), Qnil
);
1980 if (value_format
& OTF_XPlacement
)
1981 ASET (val
, 0, make_number (value_record
->XPlacement
));
1982 if (value_format
& OTF_YPlacement
)
1983 ASET (val
, 1, make_number (value_record
->YPlacement
));
1984 if (value_format
& OTF_XAdvance
)
1985 ASET (val
, 2, make_number (value_record
->XAdvance
));
1986 if (value_format
& OTF_YAdvance
)
1987 ASET (val
, 3, make_number (value_record
->YAdvance
));
1988 if (value_format
& OTF_XPlaDevice
)
1989 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XPlaDevice
));
1990 if (value_format
& OTF_YPlaDevice
)
1991 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YPlaDevice
));
1992 if (value_format
& OTF_XAdvDevice
)
1993 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XAdvDevice
));
1994 if (value_format
& OTF_YAdvDevice
)
1995 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YAdvDevice
));
2000 font_otf_Anchor (OTF_Anchor
*anchor
)
2004 val
= Fmake_vector (make_number (anchor
->AnchorFormat
+ 1), Qnil
);
2005 ASET (val
, 0, make_number (anchor
->XCoordinate
));
2006 ASET (val
, 1, make_number (anchor
->YCoordinate
));
2007 if (anchor
->AnchorFormat
== 2)
2008 ASET (val
, 2, make_number (anchor
->f
.f1
.AnchorPoint
));
2011 ASET (val
, 3, font_otf_DeviceTable (&anchor
->f
.f2
.XDeviceTable
));
2012 ASET (val
, 4, font_otf_DeviceTable (&anchor
->f
.f2
.YDeviceTable
));
2016 #endif /* HAVE_LIBOTF */
2022 static unsigned font_score (Lisp_Object
, Lisp_Object
*);
2023 static int font_compare (const void *, const void *);
2024 static Lisp_Object
font_sort_entities (Lisp_Object
, Lisp_Object
,
2028 font_rescale_ratio (Lisp_Object font_entity
)
2030 Lisp_Object tail
, elt
;
2031 Lisp_Object name
= Qnil
;
2033 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2036 if (FLOATP (XCDR (elt
)))
2038 if (STRINGP (XCAR (elt
)))
2041 name
= Ffont_xlfd_name (font_entity
, Qnil
);
2042 if (fast_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2043 return XFLOAT_DATA (XCDR (elt
));
2045 else if (FONT_SPEC_P (XCAR (elt
)))
2047 if (font_match_p (XCAR (elt
), font_entity
))
2048 return XFLOAT_DATA (XCDR (elt
));
2055 /* We sort fonts by scoring each of them against a specified
2056 font-spec. The score value is 32 bit (`unsigned'), and the smaller
2057 the value is, the closer the font is to the font-spec.
2059 The lowest 2 bits of the score are used for driver type. The font
2060 available by the most preferred font driver is 0.
2062 The 4 7-bit fields in the higher 28 bits are used for numeric properties
2063 WEIGHT, SLANT, WIDTH, and SIZE. */
2065 /* How many bits to shift to store the difference value of each font
2066 property in a score. Note that floats for FONT_TYPE_INDEX and
2067 FONT_REGISTRY_INDEX are not used. */
2068 static int sort_shift_bits
[FONT_SIZE_INDEX
+ 1];
2070 /* Score font-entity ENTITY against properties of font-spec SPEC_PROP.
2071 The return value indicates how different ENTITY is compared with
2075 font_score (Lisp_Object entity
, Lisp_Object
*spec_prop
)
2080 /* Score three style numeric fields. Maximum difference is 127. */
2081 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
; i
++)
2082 if (! NILP (spec_prop
[i
]) && ! EQ (AREF (entity
, i
), spec_prop
[i
]))
2084 EMACS_INT diff
= ((XINT (AREF (entity
, i
)) >> 8)
2085 - (XINT (spec_prop
[i
]) >> 8));
2088 score
|= min (diff
, 127) << sort_shift_bits
[i
];
2091 /* Score the size. Maximum difference is 127. */
2092 i
= FONT_SIZE_INDEX
;
2093 if (! NILP (spec_prop
[FONT_SIZE_INDEX
])
2094 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2096 /* We use the higher 6-bit for the actual size difference. The
2097 lowest bit is set if the DPI is different. */
2099 EMACS_INT pixel_size
= XINT (spec_prop
[FONT_SIZE_INDEX
]);
2101 if (CONSP (Vface_font_rescale_alist
))
2102 pixel_size
*= font_rescale_ratio (entity
);
2103 diff
= pixel_size
- XINT (AREF (entity
, FONT_SIZE_INDEX
));
2107 if (! NILP (spec_prop
[FONT_DPI_INDEX
])
2108 && ! EQ (spec_prop
[FONT_DPI_INDEX
], AREF (entity
, FONT_DPI_INDEX
)))
2110 if (! NILP (spec_prop
[FONT_AVGWIDTH_INDEX
])
2111 && ! EQ (spec_prop
[FONT_AVGWIDTH_INDEX
], AREF (entity
, FONT_AVGWIDTH_INDEX
)))
2113 score
|= min (diff
, 127) << sort_shift_bits
[FONT_SIZE_INDEX
];
2120 /* Concatenate all elements of LIST into one vector. LIST is a list
2121 of font-entity vectors. */
2124 font_vconcat_entity_vectors (Lisp_Object list
)
2126 int nargs
= XINT (Flength (list
));
2127 Lisp_Object
*args
= alloca (sizeof (Lisp_Object
) * nargs
);
2130 for (i
= 0; i
< nargs
; i
++, list
= XCDR (list
))
2131 args
[i
] = XCAR (list
);
2132 return Fvconcat (nargs
, args
);
2136 /* The structure for elements being sorted by qsort. */
2137 struct font_sort_data
2140 int font_driver_preference
;
2145 /* The comparison function for qsort. */
2148 font_compare (const void *d1
, const void *d2
)
2150 const struct font_sort_data
*data1
= d1
;
2151 const struct font_sort_data
*data2
= d2
;
2153 if (data1
->score
< data2
->score
)
2155 else if (data1
->score
> data2
->score
)
2157 return (data1
->font_driver_preference
- data2
->font_driver_preference
);
2161 /* Sort each font-entity vector in LIST by closeness to font-spec PREFER.
2162 If PREFER specifies a point-size, calculate the corresponding
2163 pixel-size from QCdpi property of PREFER or from the Y-resolution
2164 of FRAME before sorting.
2166 If BEST-ONLY is nonzero, return the best matching entity (that
2167 supports the character BEST-ONLY if BEST-ONLY is positive, or any
2168 if BEST-ONLY is negative). Otherwise, return the sorted result as
2169 a single vector of font-entities.
2171 This function does no optimization for the case that the total
2172 number of elements is 1. The caller should avoid calling this in
2176 font_sort_entities (Lisp_Object list
, Lisp_Object prefer
, Lisp_Object frame
, int best_only
)
2178 Lisp_Object prefer_prop
[FONT_SPEC_MAX
];
2180 struct font_sort_data
*data
;
2181 unsigned best_score
;
2182 Lisp_Object best_entity
;
2183 struct frame
*f
= XFRAME (frame
);
2184 Lisp_Object tail
, vec
IF_LINT (= Qnil
);
2187 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_AVGWIDTH_INDEX
; i
++)
2188 prefer_prop
[i
] = AREF (prefer
, i
);
2189 if (FLOATP (prefer_prop
[FONT_SIZE_INDEX
]))
2190 prefer_prop
[FONT_SIZE_INDEX
]
2191 = make_number (font_pixel_size (XFRAME (frame
), prefer
));
2193 if (NILP (XCDR (list
)))
2195 /* What we have to take care of is this single vector. */
2197 maxlen
= ASIZE (vec
);
2201 /* We don't have to perform sort, so there's no need of creating
2202 a single vector. But, we must find the length of the longest
2205 for (tail
= list
; CONSP (tail
); tail
= XCDR (tail
))
2206 if (maxlen
< ASIZE (XCAR (tail
)))
2207 maxlen
= ASIZE (XCAR (tail
));
2211 /* We have to create a single vector to sort it. */
2212 vec
= font_vconcat_entity_vectors (list
);
2213 maxlen
= ASIZE (vec
);
2216 SAFE_ALLOCA (data
, struct font_sort_data
*, (sizeof *data
) * maxlen
);
2217 best_score
= 0xFFFFFFFF;
2220 for (tail
= list
; CONSP (tail
); tail
= XCDR (tail
))
2222 int font_driver_preference
= 0;
2223 Lisp_Object current_font_driver
;
2229 /* We are sure that the length of VEC > 0. */
2230 current_font_driver
= AREF (AREF (vec
, 0), FONT_TYPE_INDEX
);
2231 /* Score the elements. */
2232 for (i
= 0; i
< len
; i
++)
2234 data
[i
].entity
= AREF (vec
, i
);
2236 = ((best_only
<= 0 || font_has_char (f
, data
[i
].entity
, best_only
)
2238 ? font_score (data
[i
].entity
, prefer_prop
)
2240 if (best_only
&& best_score
> data
[i
].score
)
2242 best_score
= data
[i
].score
;
2243 best_entity
= data
[i
].entity
;
2244 if (best_score
== 0)
2247 if (! EQ (current_font_driver
, AREF (AREF (vec
, i
), FONT_TYPE_INDEX
)))
2249 current_font_driver
= AREF (AREF (vec
, i
), FONT_TYPE_INDEX
);
2250 font_driver_preference
++;
2252 data
[i
].font_driver_preference
= font_driver_preference
;
2255 /* Sort if necessary. */
2258 qsort (data
, len
, sizeof *data
, font_compare
);
2259 for (i
= 0; i
< len
; i
++)
2260 ASET (vec
, i
, data
[i
].entity
);
2269 FONT_ADD_LOG ("sort-by", prefer
, vec
);
2274 /* API of Font Service Layer. */
2276 /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to
2277 sort_shift_bits. Finternal_set_font_selection_order calls this
2278 function with font_sort_order after setting up it. */
2281 font_update_sort_order (int *order
)
2285 for (i
= 0, shift_bits
= 23; i
< 4; i
++, shift_bits
-= 7)
2287 int xlfd_idx
= order
[i
];
2289 if (xlfd_idx
== XLFD_WEIGHT_INDEX
)
2290 sort_shift_bits
[FONT_WEIGHT_INDEX
] = shift_bits
;
2291 else if (xlfd_idx
== XLFD_SLANT_INDEX
)
2292 sort_shift_bits
[FONT_SLANT_INDEX
] = shift_bits
;
2293 else if (xlfd_idx
== XLFD_SWIDTH_INDEX
)
2294 sort_shift_bits
[FONT_WIDTH_INDEX
] = shift_bits
;
2296 sort_shift_bits
[FONT_SIZE_INDEX
] = shift_bits
;
2301 font_check_otf_features (Lisp_Object script
, Lisp_Object langsys
, Lisp_Object features
, Lisp_Object table
)
2306 table
= assq_no_quit (script
, table
);
2309 table
= XCDR (table
);
2310 if (! NILP (langsys
))
2312 table
= assq_no_quit (langsys
, table
);
2318 val
= assq_no_quit (Qnil
, table
);
2320 table
= XCAR (table
);
2324 table
= XCDR (table
);
2325 for (negative
= 0; CONSP (features
); features
= XCDR (features
))
2327 if (NILP (XCAR (features
)))
2332 if (NILP (Fmemq (XCAR (features
), table
)) != negative
)
2338 /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */
2341 font_check_otf (Lisp_Object spec
, Lisp_Object otf_capability
)
2343 Lisp_Object script
, langsys
= Qnil
, gsub
= Qnil
, gpos
= Qnil
;
2345 script
= XCAR (spec
);
2349 langsys
= XCAR (spec
);
2360 if (! NILP (gsub
) && ! font_check_otf_features (script
, langsys
, gsub
,
2361 XCAR (otf_capability
)))
2363 if (! NILP (gpos
) && ! font_check_otf_features (script
, langsys
, gpos
,
2364 XCDR (otf_capability
)))
2371 /* Check if FONT (font-entity or font-object) matches with the font
2372 specification SPEC. */
2375 font_match_p (Lisp_Object spec
, Lisp_Object font
)
2377 Lisp_Object prop
[FONT_SPEC_MAX
], *props
;
2378 Lisp_Object extra
, font_extra
;
2381 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2382 if (! NILP (AREF (spec
, i
))
2383 && ! NILP (AREF (font
, i
))
2384 && ! EQ (AREF (spec
, i
), AREF (font
, i
)))
2386 props
= XFONT_SPEC (spec
)->props
;
2387 if (FLOATP (props
[FONT_SIZE_INDEX
]))
2389 for (i
= FONT_FOUNDRY_INDEX
; i
< FONT_SIZE_INDEX
; i
++)
2390 prop
[i
] = AREF (spec
, i
);
2391 prop
[FONT_SIZE_INDEX
]
2392 = make_number (font_pixel_size (XFRAME (selected_frame
), spec
));
2396 if (font_score (font
, props
) > 0)
2398 extra
= AREF (spec
, FONT_EXTRA_INDEX
);
2399 font_extra
= AREF (font
, FONT_EXTRA_INDEX
);
2400 for (; CONSP (extra
); extra
= XCDR (extra
))
2402 Lisp_Object key
= XCAR (XCAR (extra
));
2403 Lisp_Object val
= XCDR (XCAR (extra
)), val2
;
2405 if (EQ (key
, QClang
))
2407 val2
= assq_no_quit (key
, font_extra
);
2416 if (NILP (Fmemq (val
, val2
)))
2421 ? NILP (Fmemq (val
, XCDR (val2
)))
2425 else if (EQ (key
, QCscript
))
2427 val2
= assq_no_quit (val
, Vscript_representative_chars
);
2433 /* All characters in the list must be supported. */
2434 for (; CONSP (val2
); val2
= XCDR (val2
))
2436 if (! NATNUMP (XCAR (val2
)))
2438 if (font_encode_char (font
, XFASTINT (XCAR (val2
)))
2439 == FONT_INVALID_CODE
)
2443 else if (VECTORP (val2
))
2445 /* At most one character in the vector must be supported. */
2446 for (i
= 0; i
< ASIZE (val2
); i
++)
2448 if (! NATNUMP (AREF (val2
, i
)))
2450 if (font_encode_char (font
, XFASTINT (AREF (val2
, i
)))
2451 != FONT_INVALID_CODE
)
2454 if (i
== ASIZE (val2
))
2459 else if (EQ (key
, QCotf
))
2463 if (! FONT_OBJECT_P (font
))
2465 fontp
= XFONT_OBJECT (font
);
2466 if (! fontp
->driver
->otf_capability
)
2468 val2
= fontp
->driver
->otf_capability (fontp
);
2469 if (NILP (val2
) || ! font_check_otf (val
, val2
))
2480 Each font backend has the callback function get_cache, and it
2481 returns a cons cell of which cdr part can be freely used for
2482 caching fonts. The cons cell may be shared by multiple frames
2483 and/or multiple font drivers. So, we arrange the cdr part as this:
2485 ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...)
2487 where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES
2488 is a number frames sharing this cache, and FONT-CACHE-DATA is a
2489 cons (FONT-SPEC FONT-ENTITY ...). */
2491 static void font_prepare_cache (FRAME_PTR
, struct font_driver
*);
2492 static void font_finish_cache (FRAME_PTR
, struct font_driver
*);
2493 static Lisp_Object
font_get_cache (FRAME_PTR
, struct font_driver
*);
2494 static void font_clear_cache (FRAME_PTR
, Lisp_Object
,
2495 struct font_driver
*);
2498 font_prepare_cache (FRAME_PTR f
, struct font_driver
*driver
)
2500 Lisp_Object cache
, val
;
2502 cache
= driver
->get_cache (f
);
2504 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2508 val
= Fcons (driver
->type
, Fcons (make_number (1), Qnil
));
2509 XSETCDR (cache
, Fcons (val
, XCDR (cache
)));
2513 val
= XCDR (XCAR (val
));
2514 XSETCAR (val
, make_number (XINT (XCAR (val
)) + 1));
2520 font_finish_cache (FRAME_PTR f
, struct font_driver
*driver
)
2522 Lisp_Object cache
, val
, tmp
;
2525 cache
= driver
->get_cache (f
);
2527 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2528 cache
= val
, val
= XCDR (val
);
2529 font_assert (! NILP (val
));
2530 tmp
= XCDR (XCAR (val
));
2531 XSETCAR (tmp
, make_number (XINT (XCAR (tmp
)) - 1));
2532 if (XINT (XCAR (tmp
)) == 0)
2534 font_clear_cache (f
, XCAR (val
), driver
);
2535 XSETCDR (cache
, XCDR (val
));
2541 font_get_cache (FRAME_PTR f
, struct font_driver
*driver
)
2543 Lisp_Object val
= driver
->get_cache (f
);
2544 Lisp_Object type
= driver
->type
;
2546 font_assert (CONSP (val
));
2547 for (val
= XCDR (val
); ! EQ (XCAR (XCAR (val
)), type
); val
= XCDR (val
));
2548 font_assert (CONSP (val
));
2549 /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */
2550 val
= XCDR (XCAR (val
));
2554 static int num_fonts
;
2557 font_clear_cache (FRAME_PTR f
, Lisp_Object cache
, struct font_driver
*driver
)
2559 Lisp_Object tail
, elt
;
2560 Lisp_Object tail2
, entity
;
2562 /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */
2563 for (tail
= XCDR (XCDR (cache
)); CONSP (tail
); tail
= XCDR (tail
))
2566 /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */
2567 if (CONSP (elt
) && FONT_SPEC_P (XCAR (elt
)))
2569 for (tail2
= XCDR (elt
); CONSP (tail2
); tail2
= XCDR (tail2
))
2571 entity
= XCAR (tail2
);
2573 if (FONT_ENTITY_P (entity
)
2574 && EQ (driver
->type
, AREF (entity
, FONT_TYPE_INDEX
)))
2576 Lisp_Object objlist
= AREF (entity
, FONT_OBJLIST_INDEX
);
2578 for (; CONSP (objlist
); objlist
= XCDR (objlist
))
2580 Lisp_Object val
= XCAR (objlist
);
2581 struct font
*font
= XFONT_OBJECT (val
);
2583 if (! NILP (AREF (val
, FONT_TYPE_INDEX
)))
2585 font_assert (font
&& driver
== font
->driver
);
2586 driver
->close (f
, font
);
2590 if (driver
->free_entity
)
2591 driver
->free_entity (entity
);
2596 XSETCDR (cache
, Qnil
);
2600 static Lisp_Object scratch_font_spec
, scratch_font_prefer
;
2602 /* Check each font-entity in VEC, and return a list of font-entities
2603 that satisfy these conditions:
2604 (1) matches with SPEC and SIZE if SPEC is not nil, and
2605 (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil).
2609 font_delete_unmatched (Lisp_Object vec
, Lisp_Object spec
, int size
)
2611 Lisp_Object entity
, val
;
2612 enum font_property_index prop
;
2615 for (val
= Qnil
, i
= ASIZE (vec
) - 1; i
>= 0; i
--)
2617 entity
= AREF (vec
, i
);
2618 if (! NILP (Vface_ignored_fonts
))
2621 Lisp_Object tail
, regexp
;
2623 if (font_unparse_xlfd (entity
, 0, name
, 256) >= 0)
2625 for (tail
= Vface_ignored_fonts
; CONSP (tail
); tail
= XCDR (tail
))
2627 regexp
= XCAR (tail
);
2628 if (STRINGP (regexp
)
2629 && fast_c_string_match_ignore_case (regexp
, name
) >= 0)
2638 val
= Fcons (entity
, val
);
2641 for (prop
= FONT_WEIGHT_INDEX
; prop
< FONT_SIZE_INDEX
; prop
++)
2642 if (INTEGERP (AREF (spec
, prop
))
2643 && ((XINT (AREF (spec
, prop
)) >> 8)
2644 != (XINT (AREF (entity
, prop
)) >> 8)))
2645 prop
= FONT_SPEC_MAX
;
2646 if (prop
< FONT_SPEC_MAX
2648 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2650 int diff
= XINT (AREF (entity
, FONT_SIZE_INDEX
)) - size
;
2653 && (diff
< 0 ? -diff
> FONT_PIXEL_SIZE_QUANTUM
2654 : diff
> FONT_PIXEL_SIZE_QUANTUM
))
2655 prop
= FONT_SPEC_MAX
;
2657 if (prop
< FONT_SPEC_MAX
2658 && INTEGERP (AREF (spec
, FONT_DPI_INDEX
))
2659 && INTEGERP (AREF (entity
, FONT_DPI_INDEX
))
2660 && XINT (AREF (entity
, FONT_DPI_INDEX
)) != 0
2661 && ! EQ (AREF (spec
, FONT_DPI_INDEX
), AREF (entity
, FONT_DPI_INDEX
)))
2662 prop
= FONT_SPEC_MAX
;
2663 if (prop
< FONT_SPEC_MAX
2664 && INTEGERP (AREF (spec
, FONT_AVGWIDTH_INDEX
))
2665 && INTEGERP (AREF (entity
, FONT_AVGWIDTH_INDEX
))
2666 && XINT (AREF (entity
, FONT_AVGWIDTH_INDEX
)) != 0
2667 && ! EQ (AREF (spec
, FONT_AVGWIDTH_INDEX
),
2668 AREF (entity
, FONT_AVGWIDTH_INDEX
)))
2669 prop
= FONT_SPEC_MAX
;
2670 if (prop
< FONT_SPEC_MAX
)
2671 val
= Fcons (entity
, val
);
2673 return (Fvconcat (1, &val
));
2677 /* Return a list of vectors of font-entities matching with SPEC on
2678 FRAME. Each elements in the list is a vector of entities from the
2679 same font-driver. */
2682 font_list_entities (Lisp_Object frame
, Lisp_Object spec
)
2684 FRAME_PTR f
= XFRAME (frame
);
2685 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2686 Lisp_Object ftype
, val
;
2687 Lisp_Object list
= Qnil
;
2689 int need_filtering
= 0;
2692 font_assert (FONT_SPEC_P (spec
));
2694 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
2695 size
= XINT (AREF (spec
, FONT_SIZE_INDEX
));
2696 else if (FLOATP (AREF (spec
, FONT_SIZE_INDEX
)))
2697 size
= font_pixel_size (f
, spec
);
2701 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2702 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2703 ASET (scratch_font_spec
, i
, AREF (spec
, i
));
2704 for (i
= FONT_WEIGHT_INDEX
; i
< FONT_EXTRA_INDEX
; i
++)
2705 if (i
!= FONT_SPACING_INDEX
)
2707 ASET (scratch_font_spec
, i
, Qnil
);
2708 if (! NILP (AREF (spec
, i
)))
2711 ASET (scratch_font_spec
, FONT_SPACING_INDEX
, AREF (spec
, FONT_SPACING_INDEX
));
2712 ASET (scratch_font_spec
, FONT_EXTRA_INDEX
, AREF (spec
, FONT_EXTRA_INDEX
));
2714 for (i
= 0; driver_list
; driver_list
= driver_list
->next
)
2716 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2718 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2720 ASET (scratch_font_spec
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2721 val
= assoc_no_quit (scratch_font_spec
, XCDR (cache
));
2728 val
= driver_list
->driver
->list (frame
, scratch_font_spec
);
2732 val
= Fvconcat (1, &val
);
2733 copy
= copy_font_spec (scratch_font_spec
);
2734 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2735 XSETCDR (cache
, Fcons (Fcons (copy
, val
), XCDR (cache
)));
2739 || ! NILP (Vface_ignored_fonts
)))
2740 val
= font_delete_unmatched (val
, need_filtering
? spec
: Qnil
, size
);
2741 if (ASIZE (val
) > 0)
2742 list
= Fcons (val
, list
);
2745 list
= Fnreverse (list
);
2746 FONT_ADD_LOG ("list", spec
, list
);
2751 /* Return a font entity matching with SPEC on FRAME. ATTRS, if non
2752 nil, is an array of face's attributes, which specifies preferred
2753 font-related attributes. */
2756 font_matching_entity (FRAME_PTR f
, Lisp_Object
*attrs
, Lisp_Object spec
)
2758 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2759 Lisp_Object ftype
, size
, entity
;
2761 Lisp_Object work
= copy_font_spec (spec
);
2763 XSETFRAME (frame
, f
);
2764 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2765 size
= AREF (spec
, FONT_SIZE_INDEX
);
2768 ASET (work
, FONT_SIZE_INDEX
, make_number (font_pixel_size (f
, spec
)));
2769 FONT_SET_STYLE (work
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
2770 FONT_SET_STYLE (work
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
2771 FONT_SET_STYLE (work
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
2774 for (; driver_list
; driver_list
= driver_list
->next
)
2776 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2778 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2781 ASET (work
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2782 entity
= assoc_no_quit (work
, XCDR (cache
));
2784 entity
= XCDR (entity
);
2787 entity
= driver_list
->driver
->match (frame
, work
);
2788 copy
= copy_font_spec (work
);
2789 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2790 XSETCDR (cache
, Fcons (Fcons (copy
, entity
), XCDR (cache
)));
2792 if (! NILP (entity
))
2795 FONT_ADD_LOG ("match", work
, entity
);
2800 /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the
2801 opened font object. */
2804 font_open_entity (FRAME_PTR f
, Lisp_Object entity
, int pixel_size
)
2806 struct font_driver_list
*driver_list
;
2807 Lisp_Object objlist
, size
, val
, font_object
;
2809 int min_width
, height
;
2810 int scaled_pixel_size
= pixel_size
;
2812 font_assert (FONT_ENTITY_P (entity
));
2813 size
= AREF (entity
, FONT_SIZE_INDEX
);
2814 if (XINT (size
) != 0)
2815 scaled_pixel_size
= pixel_size
= XINT (size
);
2816 else if (CONSP (Vface_font_rescale_alist
))
2817 scaled_pixel_size
= pixel_size
* font_rescale_ratio (entity
);
2819 val
= AREF (entity
, FONT_TYPE_INDEX
);
2820 for (driver_list
= f
->font_driver_list
;
2821 driver_list
&& ! EQ (driver_list
->driver
->type
, val
);
2822 driver_list
= driver_list
->next
);
2826 for (objlist
= AREF (entity
, FONT_OBJLIST_INDEX
); CONSP (objlist
);
2827 objlist
= XCDR (objlist
))
2829 Lisp_Object fn
= XCAR (objlist
);
2830 if (! NILP (AREF (fn
, FONT_TYPE_INDEX
))
2831 && XFONT_OBJECT (fn
)->pixel_size
== pixel_size
)
2833 if (driver_list
->driver
->cached_font_ok
== NULL
2834 || driver_list
->driver
->cached_font_ok (f
, fn
, entity
))
2839 font_object
= driver_list
->driver
->open (f
, entity
, scaled_pixel_size
);
2840 if (!NILP (font_object
))
2841 ASET (font_object
, FONT_SIZE_INDEX
, make_number (pixel_size
));
2842 FONT_ADD_LOG ("open", entity
, font_object
);
2843 if (NILP (font_object
))
2845 ASET (entity
, FONT_OBJLIST_INDEX
,
2846 Fcons (font_object
, AREF (entity
, FONT_OBJLIST_INDEX
)));
2849 font
= XFONT_OBJECT (font_object
);
2850 min_width
= (font
->min_width
? font
->min_width
2851 : font
->average_width
? font
->average_width
2852 : font
->space_width
? font
->space_width
2854 height
= (font
->height
? font
->height
: 1);
2855 #ifdef HAVE_WINDOW_SYSTEM
2856 FRAME_X_DISPLAY_INFO (f
)->n_fonts
++;
2857 if (FRAME_X_DISPLAY_INFO (f
)->n_fonts
== 1)
2859 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
;
2860 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
;
2861 fonts_changed_p
= 1;
2865 if (FRAME_SMALLEST_CHAR_WIDTH (f
) > min_width
)
2866 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
, fonts_changed_p
= 1;
2867 if (FRAME_SMALLEST_FONT_HEIGHT (f
) > height
)
2868 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
, fonts_changed_p
= 1;
2876 /* Close FONT_OBJECT that is opened on frame F. */
2879 font_close_object (FRAME_PTR f
, Lisp_Object font_object
)
2881 struct font
*font
= XFONT_OBJECT (font_object
);
2883 if (NILP (AREF (font_object
, FONT_TYPE_INDEX
)))
2884 /* Already closed. */
2886 FONT_ADD_LOG ("close", font_object
, Qnil
);
2887 font
->driver
->close (f
, font
);
2888 #ifdef HAVE_WINDOW_SYSTEM
2889 font_assert (FRAME_X_DISPLAY_INFO (f
)->n_fonts
);
2890 FRAME_X_DISPLAY_INFO (f
)->n_fonts
--;
2896 /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if
2897 FONT is a font-entity and it must be opened to check. */
2900 font_has_char (FRAME_PTR f
, Lisp_Object font
, int c
)
2904 if (FONT_ENTITY_P (font
))
2906 Lisp_Object type
= AREF (font
, FONT_TYPE_INDEX
);
2907 struct font_driver_list
*driver_list
;
2909 for (driver_list
= f
->font_driver_list
;
2910 driver_list
&& ! EQ (driver_list
->driver
->type
, type
);
2911 driver_list
= driver_list
->next
);
2914 if (! driver_list
->driver
->has_char
)
2916 return driver_list
->driver
->has_char (font
, c
);
2919 font_assert (FONT_OBJECT_P (font
));
2920 fontp
= XFONT_OBJECT (font
);
2921 if (fontp
->driver
->has_char
)
2923 int result
= fontp
->driver
->has_char (font
, c
);
2928 return (fontp
->driver
->encode_char (fontp
, c
) != FONT_INVALID_CODE
);
2932 /* Return the glyph ID of FONT_OBJECT for character C. */
2935 font_encode_char (Lisp_Object font_object
, int c
)
2939 font_assert (FONT_OBJECT_P (font_object
));
2940 font
= XFONT_OBJECT (font_object
);
2941 return font
->driver
->encode_char (font
, c
);
2945 /* Return the name of FONT_OBJECT. */
2948 font_get_name (Lisp_Object font_object
)
2950 font_assert (FONT_OBJECT_P (font_object
));
2951 return AREF (font_object
, FONT_NAME_INDEX
);
2955 /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME
2956 could not be parsed by font_parse_name, return Qnil. */
2959 font_spec_from_name (Lisp_Object font_name
)
2961 Lisp_Object spec
= Ffont_spec (0, NULL
);
2963 CHECK_STRING (font_name
);
2964 if (font_parse_name (SSDATA (font_name
), spec
) == -1)
2966 font_put_extra (spec
, QCname
, font_name
);
2967 font_put_extra (spec
, QCuser_spec
, font_name
);
2973 font_clear_prop (Lisp_Object
*attrs
, enum font_property_index prop
)
2975 Lisp_Object font
= attrs
[LFACE_FONT_INDEX
];
2980 if (! NILP (Ffont_get (font
, QCname
)))
2982 font
= copy_font_spec (font
);
2983 font_put_extra (font
, QCname
, Qnil
);
2986 if (NILP (AREF (font
, prop
))
2987 && prop
!= FONT_FAMILY_INDEX
2988 && prop
!= FONT_FOUNDRY_INDEX
2989 && prop
!= FONT_WIDTH_INDEX
2990 && prop
!= FONT_SIZE_INDEX
)
2992 if (EQ (font
, attrs
[LFACE_FONT_INDEX
]))
2993 font
= copy_font_spec (font
);
2994 ASET (font
, prop
, Qnil
);
2995 if (prop
== FONT_FAMILY_INDEX
|| prop
== FONT_FOUNDRY_INDEX
)
2997 if (prop
== FONT_FAMILY_INDEX
)
2999 ASET (font
, FONT_FOUNDRY_INDEX
, Qnil
);
3000 /* If we are setting the font family, we must also clear
3001 FONT_WIDTH_INDEX to avoid rejecting families that lack
3002 support for some widths. */
3003 ASET (font
, FONT_WIDTH_INDEX
, Qnil
);
3005 ASET (font
, FONT_ADSTYLE_INDEX
, Qnil
);
3006 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
3007 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
3008 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3009 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3010 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3012 else if (prop
== FONT_SIZE_INDEX
)
3014 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3015 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3016 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3018 else if (prop
== FONT_WIDTH_INDEX
)
3019 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3020 attrs
[LFACE_FONT_INDEX
] = font
;
3023 /* Select a font from ENTITIES (list of font-entity vectors) that
3024 supports C and is the best match for ATTRS and PIXEL_SIZE. */
3027 font_select_entity (Lisp_Object frame
, Lisp_Object entities
, Lisp_Object
*attrs
, int pixel_size
, int c
)
3029 Lisp_Object font_entity
;
3032 FRAME_PTR f
= XFRAME (frame
);
3034 if (NILP (XCDR (entities
))
3035 && ASIZE (XCAR (entities
)) == 1)
3037 font_entity
= AREF (XCAR (entities
), 0);
3039 || (result
= font_has_char (f
, font_entity
, c
)) > 0)
3044 /* Sort fonts by properties specified in ATTRS. */
3045 prefer
= scratch_font_prefer
;
3047 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
3048 ASET (prefer
, i
, Qnil
);
3049 if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3051 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3053 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
3054 ASET (prefer
, i
, AREF (face_font
, i
));
3056 if (NILP (AREF (prefer
, FONT_WEIGHT_INDEX
)))
3057 FONT_SET_STYLE (prefer
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
3058 if (NILP (AREF (prefer
, FONT_SLANT_INDEX
)))
3059 FONT_SET_STYLE (prefer
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
3060 if (NILP (AREF (prefer
, FONT_WIDTH_INDEX
)))
3061 FONT_SET_STYLE (prefer
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
3062 ASET (prefer
, FONT_SIZE_INDEX
, make_number (pixel_size
));
3064 return font_sort_entities (entities
, prefer
, frame
, c
);
3067 /* Return a font-entity that satisfies SPEC and is the best match for
3068 face's font related attributes in ATTRS. C, if not negative, is a
3069 character that the entity must support. */
3072 font_find_for_lface (FRAME_PTR f
, Lisp_Object
*attrs
, Lisp_Object spec
, int c
)
3075 Lisp_Object frame
, entities
, val
;
3076 Lisp_Object foundry
[3], *family
, registry
[3], adstyle
[3];
3080 registry
[0] = AREF (spec
, FONT_REGISTRY_INDEX
);
3081 if (NILP (registry
[0]))
3083 registry
[0] = DEFAULT_ENCODING
;
3084 registry
[1] = Qascii_0
;
3085 registry
[2] = null_vector
;
3088 registry
[1] = null_vector
;
3090 if (c
>= 0 && ! NILP (AREF (spec
, FONT_REGISTRY_INDEX
)))
3092 struct charset
*encoding
, *repertory
;
3094 if (font_registry_charsets (AREF (spec
, FONT_REGISTRY_INDEX
),
3095 &encoding
, &repertory
) < 0)
3098 && ENCODE_CHAR (repertory
, c
) == CHARSET_INVALID_CODE (repertory
))
3100 else if (c
> encoding
->max_char
)
3104 work
= copy_font_spec (spec
);
3105 ASET (work
, FONT_TYPE_INDEX
, AREF (spec
, FONT_TYPE_INDEX
));
3106 XSETFRAME (frame
, f
);
3107 pixel_size
= font_pixel_size (f
, spec
);
3108 if (pixel_size
== 0 && INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]))
3110 double pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3112 pixel_size
= POINT_TO_PIXEL (pt
/ 10, f
->resy
);
3114 ASET (work
, FONT_SIZE_INDEX
, Qnil
);
3115 foundry
[0] = AREF (work
, FONT_FOUNDRY_INDEX
);
3116 if (! NILP (foundry
[0]))
3117 foundry
[1] = null_vector
;
3118 else if (STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]))
3120 val
= attrs
[LFACE_FOUNDRY_INDEX
];
3121 foundry
[0] = font_intern_prop (SSDATA (val
), SBYTES (val
), 1);
3123 foundry
[2] = null_vector
;
3126 foundry
[0] = Qnil
, foundry
[1] = null_vector
;
3128 adstyle
[0] = AREF (work
, FONT_ADSTYLE_INDEX
);
3129 if (! NILP (adstyle
[0]))
3130 adstyle
[1] = null_vector
;
3131 else if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3133 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3135 if (! NILP (AREF (face_font
, FONT_ADSTYLE_INDEX
)))
3137 adstyle
[0] = AREF (face_font
, FONT_ADSTYLE_INDEX
);
3139 adstyle
[2] = null_vector
;
3142 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3145 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3148 val
= AREF (work
, FONT_FAMILY_INDEX
);
3149 if (NILP (val
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
3151 val
= attrs
[LFACE_FAMILY_INDEX
];
3152 val
= font_intern_prop (SSDATA (val
), SBYTES (val
), 1);
3156 family
= alloca ((sizeof family
[0]) * 2);
3158 family
[1] = null_vector
; /* terminator. */
3163 = Fassoc_string (val
, Vface_alternative_font_family_alist
,
3164 /* Font family names are case-sensitive under NS. */
3172 if (! NILP (alters
))
3174 family
= alloca ((sizeof family
[0]) * (XINT (Flength (alters
)) + 2));
3175 for (i
= 0; CONSP (alters
); i
++, alters
= XCDR (alters
))
3176 family
[i
] = XCAR (alters
);
3177 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3179 family
[i
] = null_vector
;
3183 family
= alloca ((sizeof family
[0]) * 3);
3186 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3188 family
[i
] = null_vector
;
3192 for (i
= 0; SYMBOLP (family
[i
]); i
++)
3194 ASET (work
, FONT_FAMILY_INDEX
, family
[i
]);
3195 for (j
= 0; SYMBOLP (foundry
[j
]); j
++)
3197 ASET (work
, FONT_FOUNDRY_INDEX
, foundry
[j
]);
3198 for (k
= 0; SYMBOLP (registry
[k
]); k
++)
3200 ASET (work
, FONT_REGISTRY_INDEX
, registry
[k
]);
3201 for (l
= 0; SYMBOLP (adstyle
[l
]); l
++)
3203 ASET (work
, FONT_ADSTYLE_INDEX
, adstyle
[l
]);
3204 entities
= font_list_entities (frame
, work
);
3205 if (! NILP (entities
))
3207 val
= font_select_entity (frame
, entities
,
3208 attrs
, pixel_size
, c
);
3221 font_open_for_lface (FRAME_PTR f
, Lisp_Object entity
, Lisp_Object
*attrs
, Lisp_Object spec
)
3225 if (INTEGERP (AREF (entity
, FONT_SIZE_INDEX
))
3226 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
3227 size
= XINT (AREF (entity
, FONT_SIZE_INDEX
));
3228 else if (FONT_SPEC_P (spec
) && ! NILP (AREF (spec
, FONT_SIZE_INDEX
)))
3229 size
= font_pixel_size (f
, spec
);
3233 if (INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]))
3234 pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3237 struct face
*def
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3238 Lisp_Object height
= def
->lface
[LFACE_HEIGHT_INDEX
];
3239 if (INTEGERP (height
))
3242 abort (); /* We should never end up here. */
3246 size
= POINT_TO_PIXEL (pt
, f
->resy
);
3250 Lisp_Object ffsize
= get_frame_param (f
, Qfontsize
);
3251 size
= NUMBERP (ffsize
) ? POINT_TO_PIXEL (XINT (ffsize
), f
->resy
) : 0;
3255 return font_open_entity (f
, entity
, size
);
3259 /* Find a font that satisfies SPEC and is the best match for
3260 face's attributes in ATTRS on FRAME, and return the opened
3264 font_load_for_lface (FRAME_PTR f
, Lisp_Object
*attrs
, Lisp_Object spec
)
3266 Lisp_Object entity
, name
;
3268 entity
= font_find_for_lface (f
, attrs
, spec
, -1);
3271 /* No font is listed for SPEC, but each font-backend may have
3272 different criteria about "font matching". So, try it. */
3273 entity
= font_matching_entity (f
, attrs
, spec
);
3277 /* Don't lose the original name that was put in initially. We need
3278 it to re-apply the font when font parameters (like hinting or dpi) have
3280 entity
= font_open_for_lface (f
, entity
, attrs
, spec
);
3283 name
= Ffont_get (spec
, QCuser_spec
);
3284 if (STRINGP (name
)) font_put_extra (entity
, QCuser_spec
, name
);
3290 /* Make FACE on frame F ready to use the font opened for FACE. */
3293 font_prepare_for_face (FRAME_PTR f
, struct face
*face
)
3295 if (face
->font
->driver
->prepare_face
)
3296 face
->font
->driver
->prepare_face (f
, face
);
3300 /* Make FACE on frame F stop using the font opened for FACE. */
3303 font_done_for_face (FRAME_PTR f
, struct face
*face
)
3305 if (face
->font
->driver
->done_face
)
3306 face
->font
->driver
->done_face (f
, face
);
3311 /* Open a font that is a match for font-spec SPEC on frame F. If no proper
3312 font is found, return Qnil. */
3315 font_open_by_spec (FRAME_PTR f
, Lisp_Object spec
)
3317 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3319 /* We set up the default font-related attributes of a face to prefer
3321 attrs
[LFACE_FAMILY_INDEX
] = attrs
[LFACE_FOUNDRY_INDEX
] = Qnil
;
3322 attrs
[LFACE_SWIDTH_INDEX
] = attrs
[LFACE_WEIGHT_INDEX
]
3323 = attrs
[LFACE_SLANT_INDEX
] = Qnormal
;
3325 attrs
[LFACE_HEIGHT_INDEX
] = make_number (120);
3327 attrs
[LFACE_HEIGHT_INDEX
] = make_number (0);
3329 attrs
[LFACE_FONT_INDEX
] = Qnil
;
3331 return font_load_for_lface (f
, attrs
, spec
);
3335 /* Open a font that matches NAME on frame F. If no proper font is
3336 found, return Qnil. */
3339 font_open_by_name (FRAME_PTR f
, const char *name
)
3341 Lisp_Object args
[2];
3342 Lisp_Object spec
, ret
;
3345 args
[1] = make_unibyte_string (name
, strlen (name
));
3346 spec
= Ffont_spec (2, args
);
3347 ret
= font_open_by_spec (f
, spec
);
3348 /* Do not lose name originally put in. */
3350 font_put_extra (ret
, QCuser_spec
, args
[1]);
3356 /* Register font-driver DRIVER. This function is used in two ways.
3358 The first is with frame F non-NULL. In this case, make DRIVER
3359 available (but not yet activated) on F. All frame creators
3360 (e.g. Fx_create_frame) must call this function at least once with
3361 an available font-driver.
3363 The second is with frame F NULL. In this case, DRIVER is globally
3364 registered in the variable `font_driver_list'. All font-driver
3365 implementations must call this function in its syms_of_XXXX
3366 (e.g. syms_of_xfont). */
3369 register_font_driver (struct font_driver
*driver
, FRAME_PTR f
)
3371 struct font_driver_list
*root
= f
? f
->font_driver_list
: font_driver_list
;
3372 struct font_driver_list
*prev
, *list
;
3374 if (f
&& ! driver
->draw
)
3375 error ("Unusable font driver for a frame: %s",
3376 SDATA (SYMBOL_NAME (driver
->type
)));
3378 for (prev
= NULL
, list
= root
; list
; prev
= list
, list
= list
->next
)
3379 if (EQ (list
->driver
->type
, driver
->type
))
3380 error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver
->type
)));
3382 list
= xmalloc (sizeof (struct font_driver_list
));
3384 list
->driver
= driver
;
3389 f
->font_driver_list
= list
;
3391 font_driver_list
= list
;
3397 free_font_driver_list (FRAME_PTR f
)
3399 struct font_driver_list
*list
, *next
;
3401 for (list
= f
->font_driver_list
; list
; list
= next
)
3406 f
->font_driver_list
= NULL
;
3410 /* Make the frame F use font backends listed in NEW_DRIVERS (list of
3411 symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all
3412 available font drivers. If NEW_DRIVERS is nil, finalize all drivers.
3414 A caller must free all realized faces if any in advance. The
3415 return value is a list of font backends actually made used on
3419 font_update_drivers (FRAME_PTR f
, Lisp_Object new_drivers
)
3421 Lisp_Object active_drivers
= Qnil
;
3422 struct font_driver_list
*list
;
3424 /* At first, turn off non-requested drivers, and turn on requested
3426 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3428 struct font_driver
*driver
= list
->driver
;
3429 if ((EQ (new_drivers
, Qt
) || ! NILP (Fmemq (driver
->type
, new_drivers
)))
3434 if (driver
->end_for_frame
)
3435 driver
->end_for_frame (f
);
3436 font_finish_cache (f
, driver
);
3441 if (! driver
->start_for_frame
3442 || driver
->start_for_frame (f
) == 0)
3444 font_prepare_cache (f
, driver
);
3451 if (NILP (new_drivers
))
3454 if (! EQ (new_drivers
, Qt
))
3456 /* Re-order the driver list according to new_drivers. */
3457 struct font_driver_list
**list_table
, **next
;
3461 list_table
= alloca (sizeof list_table
[0] * (num_font_drivers
+ 1));
3462 for (i
= 0, tail
= new_drivers
; ! NILP (tail
); tail
= XCDR (tail
))
3464 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3465 if (list
->on
&& EQ (list
->driver
->type
, XCAR (tail
)))
3468 list_table
[i
++] = list
;
3470 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3472 list_table
[i
++] = list
;
3473 list_table
[i
] = NULL
;
3475 next
= &f
->font_driver_list
;
3476 for (i
= 0; list_table
[i
]; i
++)
3478 *next
= list_table
[i
];
3479 next
= &(*next
)->next
;
3483 if (! f
->font_driver_list
->on
)
3484 { /* None of the drivers is enabled: enable them all.
3485 Happens if you set the list of drivers to (xft x) in your .emacs
3486 and then use it under w32 or ns. */
3487 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3489 struct font_driver
*driver
= list
->driver
;
3490 eassert (! list
->on
);
3491 if (! driver
->start_for_frame
3492 || driver
->start_for_frame (f
) == 0)
3494 font_prepare_cache (f
, driver
);
3501 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3503 active_drivers
= nconc2 (active_drivers
,
3504 Fcons (list
->driver
->type
, Qnil
));
3505 return active_drivers
;
3509 font_put_frame_data (FRAME_PTR f
, struct font_driver
*driver
, void *data
)
3511 struct font_data_list
*list
, *prev
;
3513 for (prev
= NULL
, list
= f
->font_data_list
; list
;
3514 prev
= list
, list
= list
->next
)
3515 if (list
->driver
== driver
)
3522 prev
->next
= list
->next
;
3524 f
->font_data_list
= list
->next
;
3532 list
= xmalloc (sizeof (struct font_data_list
));
3533 list
->driver
= driver
;
3534 list
->next
= f
->font_data_list
;
3535 f
->font_data_list
= list
;
3543 font_get_frame_data (FRAME_PTR f
, struct font_driver
*driver
)
3545 struct font_data_list
*list
;
3547 for (list
= f
->font_data_list
; list
; list
= list
->next
)
3548 if (list
->driver
== driver
)
3556 /* Sets attributes on a font. Any properties that appear in ALIST and
3557 BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font.
3558 BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated
3559 arrays of strings. This function is intended for use by the font
3560 drivers to implement their specific font_filter_properties. */
3562 font_filter_properties (Lisp_Object font
,
3564 const char *const boolean_properties
[],
3565 const char *const non_boolean_properties
[])
3570 /* Set boolean values to Qt or Qnil */
3571 for (i
= 0; boolean_properties
[i
] != NULL
; ++i
)
3572 for (it
= alist
; ! NILP (it
); it
= XCDR (it
))
3574 Lisp_Object key
= XCAR (XCAR (it
));
3575 Lisp_Object val
= XCDR (XCAR (it
));
3576 char *keystr
= SSDATA (SYMBOL_NAME (key
));
3578 if (strcmp (boolean_properties
[i
], keystr
) == 0)
3580 const char *str
= INTEGERP (val
) ? (XINT (val
) ? "true" : "false")
3581 : SYMBOLP (val
) ? SSDATA (SYMBOL_NAME (val
))
3584 if (strcmp ("false", str
) == 0 || strcmp ("False", str
) == 0
3585 || strcmp ("FALSE", str
) == 0 || strcmp ("FcFalse", str
) == 0
3586 || strcmp ("off", str
) == 0 || strcmp ("OFF", str
) == 0
3587 || strcmp ("Off", str
) == 0)
3592 Ffont_put (font
, key
, val
);
3596 for (i
= 0; non_boolean_properties
[i
] != NULL
; ++i
)
3597 for (it
= alist
; ! NILP (it
); it
= XCDR (it
))
3599 Lisp_Object key
= XCAR (XCAR (it
));
3600 Lisp_Object val
= XCDR (XCAR (it
));
3601 char *keystr
= SSDATA (SYMBOL_NAME (key
));
3602 if (strcmp (non_boolean_properties
[i
], keystr
) == 0)
3603 Ffont_put (font
, key
, val
);
3608 /* Return the font used to draw character C by FACE at buffer position
3609 POS in window W. If STRING is non-nil, it is a string containing C
3610 at index POS. If C is negative, get C from the current buffer or
3614 font_at (int c
, EMACS_INT pos
, struct face
*face
, struct window
*w
,
3619 Lisp_Object font_object
;
3621 multibyte
= (NILP (string
)
3622 ? ! NILP (BVAR (current_buffer
, enable_multibyte_characters
))
3623 : STRING_MULTIBYTE (string
));
3630 EMACS_INT pos_byte
= CHAR_TO_BYTE (pos
);
3632 c
= FETCH_CHAR (pos_byte
);
3635 c
= FETCH_BYTE (pos
);
3641 multibyte
= STRING_MULTIBYTE (string
);
3644 EMACS_INT pos_byte
= string_char_to_byte (string
, pos
);
3646 str
= SDATA (string
) + pos_byte
;
3647 c
= STRING_CHAR (str
);
3650 c
= SDATA (string
)[pos
];
3654 f
= XFRAME (w
->frame
);
3655 if (! FRAME_WINDOW_P (f
))
3662 if (STRINGP (string
))
3663 face_id
= face_at_string_position (w
, string
, pos
, 0, -1, -1, &endptr
,
3664 DEFAULT_FACE_ID
, 0);
3666 face_id
= face_at_buffer_position (w
, pos
, -1, -1, &endptr
,
3668 face
= FACE_FROM_ID (f
, face_id
);
3672 int face_id
= FACE_FOR_CHAR (f
, face
, c
, pos
, string
);
3673 face
= FACE_FROM_ID (f
, face_id
);
3678 XSETFONT (font_object
, face
->font
);
3683 #ifdef HAVE_WINDOW_SYSTEM
3685 /* Check how many characters after POS (at most to *LIMIT) can be
3686 displayed by the same font in the window W. FACE, if non-NULL, is
3687 the face selected for the character at POS. If STRING is not nil,
3688 it is the string to check instead of the current buffer. In that
3689 case, FACE must be not NULL.
3691 The return value is the font-object for the character at POS.
3692 *LIMIT is set to the position where that font can't be used.
3694 It is assured that the current buffer (or STRING) is multibyte. */
3697 font_range (EMACS_INT pos
, EMACS_INT
*limit
, struct window
*w
, struct face
*face
, Lisp_Object string
)
3699 EMACS_INT pos_byte
, ignore
;
3701 Lisp_Object font_object
= Qnil
;
3705 pos_byte
= CHAR_TO_BYTE (pos
);
3710 face_id
= face_at_buffer_position (w
, pos
, 0, 0, &ignore
,
3712 face
= FACE_FROM_ID (XFRAME (w
->frame
), face_id
);
3718 pos_byte
= string_char_to_byte (string
, pos
);
3721 while (pos
< *limit
)
3723 Lisp_Object category
;
3726 FETCH_CHAR_ADVANCE_NO_CHECK (c
, pos
, pos_byte
);
3728 FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c
, string
, pos
, pos_byte
);
3729 category
= CHAR_TABLE_REF (Vunicode_category_table
, c
);
3730 if (INTEGERP (category
)
3731 && (XINT (category
) == UNICODE_CATEGORY_Cf
3732 || CHAR_VARIATION_SELECTOR_P (c
)))
3734 if (NILP (font_object
))
3736 font_object
= font_for_char (face
, c
, pos
- 1, string
);
3737 if (NILP (font_object
))
3741 if (font_encode_char (font_object
, c
) == FONT_INVALID_CODE
)
3751 DEFUN ("fontp", Ffontp
, Sfontp
, 1, 2, 0,
3752 doc
: /* Return t if OBJECT is a font-spec, font-entity, or font-object.
3753 Return nil otherwise.
3754 Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check
3755 which kind of font it is. It must be one of `font-spec', `font-entity',
3757 (Lisp_Object object
, Lisp_Object extra_type
)
3759 if (NILP (extra_type
))
3760 return (FONTP (object
) ? Qt
: Qnil
);
3761 if (EQ (extra_type
, Qfont_spec
))
3762 return (FONT_SPEC_P (object
) ? Qt
: Qnil
);
3763 if (EQ (extra_type
, Qfont_entity
))
3764 return (FONT_ENTITY_P (object
) ? Qt
: Qnil
);
3765 if (EQ (extra_type
, Qfont_object
))
3766 return (FONT_OBJECT_P (object
) ? Qt
: Qnil
);
3767 wrong_type_argument (intern ("font-extra-type"), extra_type
);
3770 DEFUN ("font-spec", Ffont_spec
, Sfont_spec
, 0, MANY
, 0,
3771 doc
: /* Return a newly created font-spec with arguments as properties.
3773 ARGS must come in pairs KEY VALUE of font properties. KEY must be a
3774 valid font property name listed below:
3776 `:family', `:weight', `:slant', `:width'
3778 They are the same as face attributes of the same name. See
3779 `set-face-attribute'.
3783 VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''.
3787 VALUE must be a string or a symbol specifying the additional
3788 typographic style information of a font, e.g. ``sans''.
3792 VALUE must be a string or a symbol specifying the charset registry and
3793 encoding of a font, e.g. ``iso8859-1''.
3797 VALUE must be a non-negative integer or a floating point number
3798 specifying the font size. It specifies the font size in pixels (if
3799 VALUE is an integer), or in points (if VALUE is a float).
3803 VALUE must be a string of XLFD-style or fontconfig-style font name.
3807 VALUE must be a symbol representing a script that the font must
3808 support. It may be a symbol representing a subgroup of a script
3809 listed in the variable `script-representative-chars'.
3813 VALUE must be a symbol of two-letter ISO-639 language names,
3818 VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify
3819 required OpenType features.
3821 SCRIPT-TAG: OpenType script tag symbol (e.g. `deva').
3822 LANGSYS-TAG: OpenType language system tag symbol,
3823 or nil for the default language system.
3824 GSUB: List of OpenType GSUB feature tag symbols, or nil if none required.
3825 GPOS: List of OpenType GPOS feature tag symbols, or nil if none required.
3827 GSUB and GPOS may contain `nil' element. In such a case, the font
3828 must not have any of the remaining elements.
3830 For instance, if the VALUE is `(thai nil nil (mark))', the font must
3831 be an OpenType font whose GPOS table of `thai' script's default
3832 language system must contain `mark' feature.
3834 usage: (font-spec ARGS...) */)
3835 (ptrdiff_t nargs
, Lisp_Object
*args
)
3837 Lisp_Object spec
= font_make_spec ();
3840 for (i
= 0; i
< nargs
; i
+= 2)
3842 Lisp_Object key
= args
[i
], val
;
3846 error ("No value for key `%s'", SDATA (SYMBOL_NAME (key
)));
3849 if (EQ (key
, QCname
))
3852 font_parse_name (SSDATA (val
), spec
);
3853 font_put_extra (spec
, key
, val
);
3857 int idx
= get_font_prop_index (key
);
3861 val
= font_prop_validate (idx
, Qnil
, val
);
3862 if (idx
< FONT_EXTRA_INDEX
)
3863 ASET (spec
, idx
, val
);
3865 font_put_extra (spec
, key
, val
);
3868 font_put_extra (spec
, key
, font_prop_validate (0, key
, val
));
3874 /* Return a copy of FONT as a font-spec. */
3876 copy_font_spec (Lisp_Object font
)
3878 Lisp_Object new_spec
, tail
, prev
, extra
;
3882 new_spec
= font_make_spec ();
3883 for (i
= 1; i
< FONT_EXTRA_INDEX
; i
++)
3884 ASET (new_spec
, i
, AREF (font
, i
));
3885 extra
= Fcopy_alist (AREF (font
, FONT_EXTRA_INDEX
));
3886 /* We must remove :font-entity property. */
3887 for (prev
= Qnil
, tail
= extra
; CONSP (tail
); prev
= tail
, tail
= XCDR (tail
))
3888 if (EQ (XCAR (XCAR (tail
)), QCfont_entity
))
3891 extra
= XCDR (extra
);
3893 XSETCDR (prev
, XCDR (tail
));
3896 ASET (new_spec
, FONT_EXTRA_INDEX
, extra
);
3900 /* Merge font-specs FROM and TO, and return a new font-spec.
3901 Every specified property in FROM overrides the corresponding
3904 merge_font_spec (Lisp_Object from
, Lisp_Object to
)
3906 Lisp_Object extra
, tail
;
3911 to
= copy_font_spec (to
);
3912 for (i
= 0; i
< FONT_EXTRA_INDEX
; i
++)
3913 ASET (to
, i
, AREF (from
, i
));
3914 extra
= AREF (to
, FONT_EXTRA_INDEX
);
3915 for (tail
= AREF (from
, FONT_EXTRA_INDEX
); CONSP (tail
); tail
= XCDR (tail
))
3916 if (! EQ (XCAR (XCAR (tail
)), Qfont_entity
))
3918 Lisp_Object slot
= assq_no_quit (XCAR (XCAR (tail
)), extra
);
3921 XSETCDR (slot
, XCDR (XCAR (tail
)));
3923 extra
= Fcons (Fcons (XCAR (XCAR (tail
)), XCDR (XCAR (tail
))), extra
);
3925 ASET (to
, FONT_EXTRA_INDEX
, extra
);
3929 DEFUN ("font-get", Ffont_get
, Sfont_get
, 2, 2, 0,
3930 doc
: /* Return the value of FONT's property KEY.
3931 FONT is a font-spec, a font-entity, or a font-object.
3932 KEY is any symbol, but these are reserved for specific meanings:
3933 :family, :weight, :slant, :width, :foundry, :adstyle, :registry,
3934 :size, :name, :script, :otf
3935 See the documentation of `font-spec' for their meanings.
3936 In addition, if FONT is a font-entity or a font-object, values of
3937 :script and :otf are different from those of a font-spec as below:
3939 The value of :script may be a list of scripts that are supported by the font.
3941 The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists
3942 representing the OpenType features supported by the font by this form:
3943 ((SCRIPT (LANGSYS FEATURE ...) ...) ...)
3944 SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType
3946 (Lisp_Object font
, Lisp_Object key
)
3954 idx
= get_font_prop_index (key
);
3955 if (idx
>= FONT_WEIGHT_INDEX
&& idx
<= FONT_WIDTH_INDEX
)
3956 return font_style_symbolic (font
, idx
, 0);
3957 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
3958 return AREF (font
, idx
);
3959 val
= Fassq (key
, AREF (font
, FONT_EXTRA_INDEX
));
3960 if (NILP (val
) && EQ (key
, QCotf
) && FONT_OBJECT_P (font
))
3962 struct font
*fontp
= XFONT_OBJECT (font
);
3964 if (fontp
->driver
->otf_capability
)
3965 val
= fontp
->driver
->otf_capability (fontp
);
3967 val
= Fcons (Qnil
, Qnil
);
3974 #ifdef HAVE_WINDOW_SYSTEM
3976 DEFUN ("font-face-attributes", Ffont_face_attributes
, Sfont_face_attributes
, 1, 2, 0,
3977 doc
: /* Return a plist of face attributes generated by FONT.
3978 FONT is a font name, a font-spec, a font-entity, or a font-object.
3979 The return value is a list of the form
3981 \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH)
3983 where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values
3984 compatible with `set-face-attribute'. Some of these key-attribute pairs
3985 may be omitted from the list if they are not specified by FONT.
3987 The optional argument FRAME specifies the frame that the face attributes
3988 are to be displayed on. If omitted, the selected frame is used. */)
3989 (Lisp_Object font
, Lisp_Object frame
)
3992 Lisp_Object plist
[10];
3997 frame
= selected_frame
;
3998 CHECK_LIVE_FRAME (frame
);
4003 int fontset
= fs_query_fontset (font
, 0);
4004 Lisp_Object name
= font
;
4006 font
= fontset_ascii (fontset
);
4007 font
= font_spec_from_name (name
);
4009 signal_error ("Invalid font name", name
);
4011 else if (! FONTP (font
))
4012 signal_error ("Invalid font object", font
);
4014 val
= AREF (font
, FONT_FAMILY_INDEX
);
4017 plist
[n
++] = QCfamily
;
4018 plist
[n
++] = SYMBOL_NAME (val
);
4021 val
= AREF (font
, FONT_SIZE_INDEX
);
4024 Lisp_Object font_dpi
= AREF (font
, FONT_DPI_INDEX
);
4025 int dpi
= INTEGERP (font_dpi
) ? XINT (font_dpi
) : f
->resy
;
4026 plist
[n
++] = QCheight
;
4027 plist
[n
++] = make_number (PIXEL_TO_POINT (XINT (val
) * 10, dpi
));
4029 else if (FLOATP (val
))
4031 plist
[n
++] = QCheight
;
4032 plist
[n
++] = make_number (10 * (int) XFLOAT_DATA (val
));
4035 val
= FONT_WEIGHT_FOR_FACE (font
);
4038 plist
[n
++] = QCweight
;
4042 val
= FONT_SLANT_FOR_FACE (font
);
4045 plist
[n
++] = QCslant
;
4049 val
= FONT_WIDTH_FOR_FACE (font
);
4052 plist
[n
++] = QCwidth
;
4056 return Flist (n
, plist
);
4061 DEFUN ("font-put", Ffont_put
, Sfont_put
, 3, 3, 0,
4062 doc
: /* Set one property of FONT: give property KEY value VAL.
4063 FONT is a font-spec, a font-entity, or a font-object.
4065 If FONT is a font-spec, KEY can be any symbol. But if KEY is the one
4066 accepted by the function `font-spec' (which see), VAL must be what
4067 allowed in `font-spec'.
4069 If FONT is a font-entity or a font-object, KEY must not be the one
4070 accepted by `font-spec'. */)
4071 (Lisp_Object font
, Lisp_Object prop
, Lisp_Object val
)
4075 idx
= get_font_prop_index (prop
);
4076 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
4078 CHECK_FONT_SPEC (font
);
4079 ASET (font
, idx
, font_prop_validate (idx
, Qnil
, val
));
4083 if (EQ (prop
, QCname
)
4084 || EQ (prop
, QCscript
)
4085 || EQ (prop
, QClang
)
4086 || EQ (prop
, QCotf
))
4087 CHECK_FONT_SPEC (font
);
4090 font_put_extra (font
, prop
, font_prop_validate (0, prop
, val
));
4095 DEFUN ("list-fonts", Flist_fonts
, Slist_fonts
, 1, 4, 0,
4096 doc
: /* List available fonts matching FONT-SPEC on the current frame.
4097 Optional 2nd argument FRAME specifies the target frame.
4098 Optional 3rd argument NUM, if non-nil, limits the number of returned fonts.
4099 Optional 4th argument PREFER, if non-nil, is a font-spec to
4100 control the order of the returned list. Fonts are sorted by
4101 how close they are to PREFER. */)
4102 (Lisp_Object font_spec
, Lisp_Object frame
, Lisp_Object num
, Lisp_Object prefer
)
4104 Lisp_Object vec
, list
;
4108 frame
= selected_frame
;
4109 CHECK_LIVE_FRAME (frame
);
4110 CHECK_FONT_SPEC (font_spec
);
4118 if (! NILP (prefer
))
4119 CHECK_FONT_SPEC (prefer
);
4121 list
= font_list_entities (frame
, font_spec
);
4124 if (NILP (XCDR (list
))
4125 && ASIZE (XCAR (list
)) == 1)
4126 return Fcons (AREF (XCAR (list
), 0), Qnil
);
4128 if (! NILP (prefer
))
4129 vec
= font_sort_entities (list
, prefer
, frame
, 0);
4131 vec
= font_vconcat_entity_vectors (list
);
4132 if (n
== 0 || n
>= ASIZE (vec
))
4134 Lisp_Object args
[2];
4138 list
= Fappend (2, args
);
4142 for (list
= Qnil
, n
--; n
>= 0; n
--)
4143 list
= Fcons (AREF (vec
, n
), list
);
4148 DEFUN ("font-family-list", Ffont_family_list
, Sfont_family_list
, 0, 1, 0,
4149 doc
: /* List available font families on the current frame.
4150 Optional argument FRAME, if non-nil, specifies the target frame. */)
4154 struct font_driver_list
*driver_list
;
4158 frame
= selected_frame
;
4159 CHECK_LIVE_FRAME (frame
);
4162 for (driver_list
= f
->font_driver_list
; driver_list
;
4163 driver_list
= driver_list
->next
)
4164 if (driver_list
->driver
->list_family
)
4166 Lisp_Object val
= driver_list
->driver
->list_family (frame
);
4167 Lisp_Object tail
= list
;
4169 for (; CONSP (val
); val
= XCDR (val
))
4170 if (NILP (Fmemq (XCAR (val
), tail
))
4171 && SYMBOLP (XCAR (val
)))
4172 list
= Fcons (SYMBOL_NAME (XCAR (val
)), list
);
4177 DEFUN ("find-font", Ffind_font
, Sfind_font
, 1, 2, 0,
4178 doc
: /* Return a font-entity matching with FONT-SPEC on the current frame.
4179 Optional 2nd argument FRAME, if non-nil, specifies the target frame. */)
4180 (Lisp_Object font_spec
, Lisp_Object frame
)
4182 Lisp_Object val
= Flist_fonts (font_spec
, frame
, make_number (1), Qnil
);
4189 DEFUN ("font-xlfd-name", Ffont_xlfd_name
, Sfont_xlfd_name
, 1, 2, 0,
4190 doc
: /* Return XLFD name of FONT.
4191 FONT is a font-spec, font-entity, or font-object.
4192 If the name is too long for XLFD (maximum 255 chars), return nil.
4193 If the 2nd optional arg FOLD-WILDCARDS is non-nil,
4194 the consecutive wildcards are folded into one. */)
4195 (Lisp_Object font
, Lisp_Object fold_wildcards
)
4202 if (FONT_OBJECT_P (font
))
4204 Lisp_Object font_name
= AREF (font
, FONT_NAME_INDEX
);
4206 if (STRINGP (font_name
)
4207 && SDATA (font_name
)[0] == '-')
4209 if (NILP (fold_wildcards
))
4211 strcpy (name
, SSDATA (font_name
));
4214 pixel_size
= XFONT_OBJECT (font
)->pixel_size
;
4216 if (font_unparse_xlfd (font
, pixel_size
, name
, 256) < 0)
4219 if (! NILP (fold_wildcards
))
4221 char *p0
= name
, *p1
;
4223 while ((p1
= strstr (p0
, "-*-*")))
4225 strcpy (p1
, p1
+ 2);
4230 return build_string (name
);
4233 DEFUN ("clear-font-cache", Fclear_font_cache
, Sclear_font_cache
, 0, 0, 0,
4234 doc
: /* Clear font cache. */)
4237 Lisp_Object list
, frame
;
4239 FOR_EACH_FRAME (list
, frame
)
4241 FRAME_PTR f
= XFRAME (frame
);
4242 struct font_driver_list
*driver_list
= f
->font_driver_list
;
4244 for (; driver_list
; driver_list
= driver_list
->next
)
4245 if (driver_list
->on
)
4247 Lisp_Object cache
= driver_list
->driver
->get_cache (f
);
4248 Lisp_Object val
, tmp
;
4252 && ! EQ (XCAR (XCAR (val
)), driver_list
->driver
->type
))
4254 font_assert (! NILP (val
));
4255 tmp
= XCDR (XCAR (val
));
4256 if (XINT (XCAR (tmp
)) == 0)
4258 font_clear_cache (f
, XCAR (val
), driver_list
->driver
);
4259 XSETCDR (cache
, XCDR (val
));
4269 font_fill_lglyph_metrics (Lisp_Object glyph
, Lisp_Object font_object
)
4271 struct font
*font
= XFONT_OBJECT (font_object
);
4273 /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */
4274 EMACS_INT ecode
= font
->driver
->encode_char (font
, LGLYPH_CHAR (glyph
));
4275 struct font_metrics metrics
;
4277 LGLYPH_SET_CODE (glyph
, ecode
);
4279 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4280 LGLYPH_SET_LBEARING (glyph
, metrics
.lbearing
);
4281 LGLYPH_SET_RBEARING (glyph
, metrics
.rbearing
);
4282 LGLYPH_SET_WIDTH (glyph
, metrics
.width
);
4283 LGLYPH_SET_ASCENT (glyph
, metrics
.ascent
);
4284 LGLYPH_SET_DESCENT (glyph
, metrics
.descent
);
4288 DEFUN ("font-shape-gstring", Ffont_shape_gstring
, Sfont_shape_gstring
, 1, 1, 0,
4289 doc
: /* Shape the glyph-string GSTRING.
4290 Shaping means substituting glyphs and/or adjusting positions of glyphs
4291 to get the correct visual image of character sequences set in the
4292 header of the glyph-string.
4294 If the shaping was successful, the value is GSTRING itself or a newly
4295 created glyph-string. Otherwise, the value is nil. */)
4296 (Lisp_Object gstring
)
4299 Lisp_Object font_object
, n
, glyph
;
4300 EMACS_INT i
, j
, from
, to
;
4302 if (! composition_gstring_p (gstring
))
4303 signal_error ("Invalid glyph-string: ", gstring
);
4304 if (! NILP (LGSTRING_ID (gstring
)))
4306 font_object
= LGSTRING_FONT (gstring
);
4307 CHECK_FONT_OBJECT (font_object
);
4308 font
= XFONT_OBJECT (font_object
);
4309 if (! font
->driver
->shape
)
4312 /* Try at most three times with larger gstring each time. */
4313 for (i
= 0; i
< 3; i
++)
4315 n
= font
->driver
->shape (gstring
);
4318 gstring
= larger_vector (gstring
,
4319 ASIZE (gstring
) + LGSTRING_GLYPH_LEN (gstring
),
4322 if (i
== 3 || XINT (n
) == 0)
4324 if (XINT (n
) < LGSTRING_GLYPH_LEN (gstring
))
4325 LGSTRING_SET_GLYPH (gstring
, XINT (n
), Qnil
);
4327 glyph
= LGSTRING_GLYPH (gstring
, 0);
4328 from
= LGLYPH_FROM (glyph
);
4329 to
= LGLYPH_TO (glyph
);
4330 for (i
= 1, j
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
4332 Lisp_Object
this = LGSTRING_GLYPH (gstring
, i
);
4336 if (NILP (LGLYPH_ADJUSTMENT (this)))
4341 glyph
= LGSTRING_GLYPH (gstring
, j
);
4342 LGLYPH_SET_FROM (glyph
, from
);
4343 LGLYPH_SET_TO (glyph
, to
);
4345 from
= LGLYPH_FROM (this);
4346 to
= LGLYPH_TO (this);
4351 if (from
> LGLYPH_FROM (this))
4352 from
= LGLYPH_FROM (this);
4353 if (to
< LGLYPH_TO (this))
4354 to
= LGLYPH_TO (this);
4360 glyph
= LGSTRING_GLYPH (gstring
, j
);
4361 LGLYPH_SET_FROM (glyph
, from
);
4362 LGLYPH_SET_TO (glyph
, to
);
4364 return composition_gstring_put_cache (gstring
, XINT (n
));
4367 DEFUN ("font-variation-glyphs", Ffont_variation_glyphs
, Sfont_variation_glyphs
,
4369 doc
: /* Return a list of variation glyphs for CHAR in FONT-OBJECT.
4370 Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID),
4372 VARIATION-SELECTOR is a character code of variation selection
4373 (#xFE00..#xFE0F or #xE0100..#xE01EF)
4374 GLYPH-ID is a glyph code of the corresponding variation glyph. */)
4375 (Lisp_Object font_object
, Lisp_Object character
)
4377 unsigned variations
[256];
4382 CHECK_FONT_OBJECT (font_object
);
4383 CHECK_CHARACTER (character
);
4384 font
= XFONT_OBJECT (font_object
);
4385 if (! font
->driver
->get_variation_glyphs
)
4387 n
= font
->driver
->get_variation_glyphs (font
, XINT (character
), variations
);
4391 for (i
= 0; i
< 255; i
++)
4394 int vs
= (i
< 16 ? 0xFE00 + i
: 0xE0100 + (i
- 16));
4395 Lisp_Object code
= INTEGER_TO_CONS (variations
[i
]);
4396 val
= Fcons (Fcons (make_number (vs
), code
), val
);
4403 DEFUN ("font-drive-otf", Ffont_drive_otf
, Sfont_drive_otf
, 6, 6, 0,
4404 doc
: /* Apply OpenType features on glyph-string GSTRING-IN.
4405 OTF-FEATURES specifies which features to apply in this format:
4406 (SCRIPT LANGSYS GSUB GPOS)
4408 SCRIPT is a symbol specifying a script tag of OpenType,
4409 LANGSYS is a symbol specifying a langsys tag of OpenType,
4410 GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags.
4412 If LANGYS is nil, the default langsys is selected.
4414 The features are applied in the order they appear in the list. The
4415 symbol `*' means to apply all available features not present in this
4416 list, and the remaining features are ignored. For instance, (vatu
4417 pstf * haln) is to apply vatu and pstf in this order, then to apply
4418 all available features other than vatu, pstf, and haln.
4420 The features are applied to the glyphs in the range FROM and TO of
4421 the glyph-string GSTRING-IN.
4423 If some feature is actually applicable, the resulting glyphs are
4424 produced in the glyph-string GSTRING-OUT from the index INDEX. In
4425 this case, the value is the number of produced glyphs.
4427 If no feature is applicable, no glyph is produced in GSTRING-OUT, and
4430 If GSTRING-OUT is too short to hold produced glyphs, no glyphs are
4431 produced in GSTRING-OUT, and the value is nil.
4433 See the documentation of `composition-get-gstring' for the format of
4435 (Lisp_Object otf_features
, Lisp_Object gstring_in
, Lisp_Object from
, Lisp_Object to
, Lisp_Object gstring_out
, Lisp_Object index
)
4437 Lisp_Object font_object
= LGSTRING_FONT (gstring_in
);
4442 check_otf_features (otf_features
);
4443 CHECK_FONT_OBJECT (font_object
);
4444 font
= XFONT_OBJECT (font_object
);
4445 if (! font
->driver
->otf_drive
)
4446 error ("Font backend %s can't drive OpenType GSUB table",
4447 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4448 CHECK_CONS (otf_features
);
4449 CHECK_SYMBOL (XCAR (otf_features
));
4450 val
= XCDR (otf_features
);
4451 CHECK_SYMBOL (XCAR (val
));
4452 val
= XCDR (otf_features
);
4455 len
= check_gstring (gstring_in
);
4456 CHECK_VECTOR (gstring_out
);
4457 CHECK_NATNUM (from
);
4459 CHECK_NATNUM (index
);
4461 if (XINT (from
) >= XINT (to
) || XINT (to
) > len
)
4462 args_out_of_range_3 (from
, to
, make_number (len
));
4463 if (XINT (index
) >= ASIZE (gstring_out
))
4464 args_out_of_range (index
, make_number (ASIZE (gstring_out
)));
4465 num
= font
->driver
->otf_drive (font
, otf_features
,
4466 gstring_in
, XINT (from
), XINT (to
),
4467 gstring_out
, XINT (index
), 0);
4470 return make_number (num
);
4473 DEFUN ("font-otf-alternates", Ffont_otf_alternates
, Sfont_otf_alternates
,
4475 doc
: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT.
4476 OTF-FEATURES specifies which features of the font FONT-OBJECT to apply
4478 (SCRIPT LANGSYS FEATURE ...)
4479 See the documentation of `font-drive-otf' for more detail.
4481 The value is a list of cons cells of the format (GLYPH-ID . CHARACTER),
4482 where GLYPH-ID is a glyph index of the font, and CHARACTER is a
4483 character code corresponding to the glyph or nil if there's no
4484 corresponding character. */)
4485 (Lisp_Object font_object
, Lisp_Object character
, Lisp_Object otf_features
)
4488 Lisp_Object gstring_in
, gstring_out
, g
;
4489 Lisp_Object alternates
;
4492 CHECK_FONT_GET_OBJECT (font_object
, font
);
4493 if (! font
->driver
->otf_drive
)
4494 error ("Font backend %s can't drive OpenType GSUB table",
4495 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4496 CHECK_CHARACTER (character
);
4497 CHECK_CONS (otf_features
);
4499 gstring_in
= Ffont_make_gstring (font_object
, make_number (1));
4500 g
= LGSTRING_GLYPH (gstring_in
, 0);
4501 LGLYPH_SET_CHAR (g
, XINT (character
));
4502 gstring_out
= Ffont_make_gstring (font_object
, make_number (10));
4503 while ((num
= font
->driver
->otf_drive (font
, otf_features
, gstring_in
, 0, 1,
4504 gstring_out
, 0, 1)) < 0)
4505 gstring_out
= Ffont_make_gstring (font_object
,
4506 make_number (ASIZE (gstring_out
) * 2));
4508 for (i
= 0; i
< num
; i
++)
4510 Lisp_Object g
= LGSTRING_GLYPH (gstring_out
, i
);
4511 int c
= LGLYPH_CHAR (g
);
4512 unsigned code
= LGLYPH_CODE (g
);
4514 alternates
= Fcons (Fcons (make_number (code
),
4515 c
> 0 ? make_number (c
) : Qnil
),
4518 return Fnreverse (alternates
);
4524 DEFUN ("open-font", Fopen_font
, Sopen_font
, 1, 3, 0,
4525 doc
: /* Open FONT-ENTITY. */)
4526 (Lisp_Object font_entity
, Lisp_Object size
, Lisp_Object frame
)
4530 CHECK_FONT_ENTITY (font_entity
);
4532 frame
= selected_frame
;
4533 CHECK_LIVE_FRAME (frame
);
4536 isize
= XINT (AREF (font_entity
, FONT_SIZE_INDEX
));
4539 CHECK_NUMBER_OR_FLOAT (size
);
4541 isize
= POINT_TO_PIXEL (XFLOAT_DATA (size
), XFRAME (frame
)->resy
);
4543 isize
= XINT (size
);
4547 return font_open_entity (XFRAME (frame
), font_entity
, isize
);
4550 DEFUN ("close-font", Fclose_font
, Sclose_font
, 1, 2, 0,
4551 doc
: /* Close FONT-OBJECT. */)
4552 (Lisp_Object font_object
, Lisp_Object frame
)
4554 CHECK_FONT_OBJECT (font_object
);
4556 frame
= selected_frame
;
4557 CHECK_LIVE_FRAME (frame
);
4558 font_close_object (XFRAME (frame
), font_object
);
4562 DEFUN ("query-font", Fquery_font
, Squery_font
, 1, 1, 0,
4563 doc
: /* Return information about FONT-OBJECT.
4564 The value is a vector:
4565 [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH
4568 NAME is the font name, a string (or nil if the font backend doesn't
4571 FILENAME is the font file name, a string (or nil if the font backend
4572 doesn't provide a file name).
4574 PIXEL-SIZE is a pixel size by which the font is opened.
4576 SIZE is a maximum advance width of the font in pixels.
4578 ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in
4581 CAPABILITY is a list whose first element is a symbol representing the
4582 font format \(x, opentype, truetype, type1, pcf, or bdf) and the
4583 remaining elements describe the details of the font capability.
4585 If the font is OpenType font, the form of the list is
4586 \(opentype GSUB GPOS)
4587 where GSUB shows which "GSUB" features the font supports, and GPOS
4588 shows which "GPOS" features the font supports. Both GSUB and GPOS are
4589 lists of the format:
4590 \((SCRIPT (LANGSYS FEATURE ...) ...) ...)
4592 If the font is not OpenType font, currently the length of the form is
4595 SCRIPT is a symbol representing OpenType script tag.
4597 LANGSYS is a symbol representing OpenType langsys tag, or nil
4598 representing the default langsys.
4600 FEATURE is a symbol representing OpenType feature tag.
4602 If the font is not OpenType font, CAPABILITY is nil. */)
4603 (Lisp_Object font_object
)
4608 CHECK_FONT_GET_OBJECT (font_object
, font
);
4610 val
= Fmake_vector (make_number (9), Qnil
);
4611 ASET (val
, 0, AREF (font_object
, FONT_NAME_INDEX
));
4612 ASET (val
, 1, AREF (font_object
, FONT_FILE_INDEX
));
4613 ASET (val
, 2, make_number (font
->pixel_size
));
4614 ASET (val
, 3, make_number (font
->max_width
));
4615 ASET (val
, 4, make_number (font
->ascent
));
4616 ASET (val
, 5, make_number (font
->descent
));
4617 ASET (val
, 6, make_number (font
->space_width
));
4618 ASET (val
, 7, make_number (font
->average_width
));
4619 if (font
->driver
->otf_capability
)
4620 ASET (val
, 8, Fcons (Qopentype
, font
->driver
->otf_capability (font
)));
4624 DEFUN ("font-get-glyphs", Ffont_get_glyphs
, Sfont_get_glyphs
, 3, 4, 0,
4626 /* Return a vector of FONT-OBJECT's glyphs for the specified characters.
4627 FROM and TO are positions (integers or markers) specifying a region
4628 of the current buffer.
4629 If the optional fourth arg OBJECT is not nil, it is a string or a
4630 vector containing the target characters.
4632 Each element is a vector containing information of a glyph in this format:
4633 [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT]
4635 FROM is an index numbers of a character the glyph corresponds to.
4636 TO is the same as FROM.
4637 C is the character of the glyph.
4638 CODE is the glyph-code of C in FONT-OBJECT.
4639 WIDTH thru DESCENT are the metrics (in pixels) of the glyph.
4640 ADJUSTMENT is always nil.
4641 If FONT-OBJECT doesn't have a glyph for a character,
4642 the corresponding element is nil. */)
4643 (Lisp_Object font_object
, Lisp_Object from
, Lisp_Object to
,
4648 Lisp_Object
*chars
, vec
;
4651 CHECK_FONT_GET_OBJECT (font_object
, font
);
4654 EMACS_INT charpos
, bytepos
;
4656 validate_region (&from
, &to
);
4659 len
= XFASTINT (to
) - XFASTINT (from
);
4660 SAFE_ALLOCA_LISP (chars
, len
);
4661 charpos
= XFASTINT (from
);
4662 bytepos
= CHAR_TO_BYTE (charpos
);
4663 for (i
= 0; charpos
< XFASTINT (to
); i
++)
4666 FETCH_CHAR_ADVANCE (c
, charpos
, bytepos
);
4667 chars
[i
] = make_number (c
);
4670 else if (STRINGP (object
))
4672 const unsigned char *p
;
4674 CHECK_NUMBER (from
);
4676 if (XINT (from
) < 0 || XINT (from
) > XINT (to
)
4677 || XINT (to
) > SCHARS (object
))
4678 args_out_of_range_3 (object
, from
, to
);
4681 len
= XFASTINT (to
) - XFASTINT (from
);
4682 SAFE_ALLOCA_LISP (chars
, len
);
4684 if (STRING_MULTIBYTE (object
))
4685 for (i
= 0; i
< len
; i
++)
4687 int c
= STRING_CHAR_ADVANCE (p
);
4688 chars
[i
] = make_number (c
);
4691 for (i
= 0; i
< len
; i
++)
4692 chars
[i
] = make_number (p
[i
]);
4696 CHECK_VECTOR (object
);
4697 CHECK_NUMBER (from
);
4699 if (XINT (from
) < 0 || XINT (from
) > XINT (to
)
4700 || XINT (to
) > ASIZE (object
))
4701 args_out_of_range_3 (object
, from
, to
);
4704 len
= XFASTINT (to
) - XFASTINT (from
);
4705 for (i
= 0; i
< len
; i
++)
4707 Lisp_Object elt
= AREF (object
, XFASTINT (from
) + i
);
4708 CHECK_CHARACTER (elt
);
4710 chars
= &(AREF (object
, XFASTINT (from
)));
4713 vec
= Fmake_vector (make_number (len
), Qnil
);
4714 for (i
= 0; i
< len
; i
++)
4717 int c
= XFASTINT (chars
[i
]);
4719 struct font_metrics metrics
;
4721 code
= font
->driver
->encode_char (font
, c
);
4722 if (code
== FONT_INVALID_CODE
)
4724 g
= Fmake_vector (make_number (LGLYPH_SIZE
), Qnil
);
4725 LGLYPH_SET_FROM (g
, i
);
4726 LGLYPH_SET_TO (g
, i
);
4727 LGLYPH_SET_CHAR (g
, c
);
4728 LGLYPH_SET_CODE (g
, code
);
4729 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4730 LGLYPH_SET_WIDTH (g
, metrics
.width
);
4731 LGLYPH_SET_LBEARING (g
, metrics
.lbearing
);
4732 LGLYPH_SET_RBEARING (g
, metrics
.rbearing
);
4733 LGLYPH_SET_ASCENT (g
, metrics
.ascent
);
4734 LGLYPH_SET_DESCENT (g
, metrics
.descent
);
4737 if (! VECTORP (object
))
4742 DEFUN ("font-match-p", Ffont_match_p
, Sfont_match_p
, 2, 2, 0,
4743 doc
: /* Return t if and only if font-spec SPEC matches with FONT.
4744 FONT is a font-spec, font-entity, or font-object. */)
4745 (Lisp_Object spec
, Lisp_Object font
)
4747 CHECK_FONT_SPEC (spec
);
4750 return (font_match_p (spec
, font
) ? Qt
: Qnil
);
4753 DEFUN ("font-at", Ffont_at
, Sfont_at
, 1, 3, 0,
4754 doc
: /* Return a font-object for displaying a character at POSITION.
4755 Optional second arg WINDOW, if non-nil, is a window displaying
4756 the current buffer. It defaults to the currently selected window. */)
4757 (Lisp_Object position
, Lisp_Object window
, Lisp_Object string
)
4764 CHECK_NUMBER_COERCE_MARKER (position
);
4765 pos
= XINT (position
);
4766 if (pos
< BEGV
|| pos
>= ZV
)
4767 args_out_of_range_3 (position
, make_number (BEGV
), make_number (ZV
));
4771 CHECK_NUMBER (position
);
4772 CHECK_STRING (string
);
4773 pos
= XINT (position
);
4774 if (pos
< 0 || pos
>= SCHARS (string
))
4775 args_out_of_range (string
, position
);
4778 window
= selected_window
;
4779 CHECK_LIVE_WINDOW (window
);
4780 w
= XWINDOW (window
);
4782 return font_at (-1, pos
, NULL
, w
, string
);
4786 DEFUN ("draw-string", Fdraw_string
, Sdraw_string
, 2, 2, 0,
4787 doc
: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame.
4788 The value is a number of glyphs drawn.
4789 Type C-l to recover what previously shown. */)
4790 (Lisp_Object font_object
, Lisp_Object string
)
4792 Lisp_Object frame
= selected_frame
;
4793 FRAME_PTR f
= XFRAME (frame
);
4799 CHECK_FONT_GET_OBJECT (font_object
, font
);
4800 CHECK_STRING (string
);
4801 len
= SCHARS (string
);
4802 code
= alloca (sizeof (unsigned) * len
);
4803 for (i
= 0; i
< len
; i
++)
4805 Lisp_Object ch
= Faref (string
, make_number (i
));
4809 code
[i
] = font
->driver
->encode_char (font
, c
);
4810 if (code
[i
] == FONT_INVALID_CODE
)
4813 face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4815 if (font
->driver
->prepare_face
)
4816 font
->driver
->prepare_face (f
, face
);
4817 width
= font
->driver
->text_extents (font
, code
, i
, NULL
);
4818 len
= font
->driver
->draw_text (f
, face
, 0, font
->ascent
, code
, i
, width
);
4819 if (font
->driver
->done_face
)
4820 font
->driver
->done_face (f
, face
);
4822 return make_number (len
);
4826 #endif /* FONT_DEBUG */
4828 #ifdef HAVE_WINDOW_SYSTEM
4830 DEFUN ("font-info", Ffont_info
, Sfont_info
, 1, 2, 0,
4831 doc
: /* Return information about a font named NAME on frame FRAME.
4832 If FRAME is omitted or nil, use the selected frame.
4833 The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE,
4834 HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT,
4836 OPENED-NAME is the name used for opening the font,
4837 FULL-NAME is the full name of the font,
4838 SIZE is the pixelsize of the font,
4839 HEIGHT is the pixel-height of the font (i.e ascent + descent),
4840 BASELINE-OFFSET is the upward offset pixels from ASCII baseline,
4841 RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling
4842 how to compose characters.
4843 If the named font is not yet loaded, return nil. */)
4844 (Lisp_Object name
, Lisp_Object frame
)
4849 Lisp_Object font_object
;
4851 (*check_window_system_func
) ();
4854 CHECK_STRING (name
);
4856 frame
= selected_frame
;
4857 CHECK_LIVE_FRAME (frame
);
4862 int fontset
= fs_query_fontset (name
, 0);
4865 name
= fontset_ascii (fontset
);
4866 font_object
= font_open_by_name (f
, SSDATA (name
));
4868 else if (FONT_OBJECT_P (name
))
4870 else if (FONT_ENTITY_P (name
))
4871 font_object
= font_open_entity (f
, name
, 0);
4874 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4875 Lisp_Object entity
= font_matching_entity (f
, face
->lface
, name
);
4877 font_object
= ! NILP (entity
) ? font_open_entity (f
, entity
, 0) : Qnil
;
4879 if (NILP (font_object
))
4881 font
= XFONT_OBJECT (font_object
);
4883 info
= Fmake_vector (make_number (7), Qnil
);
4884 XVECTOR (info
)->contents
[0] = AREF (font_object
, FONT_NAME_INDEX
);
4885 XVECTOR (info
)->contents
[1] = AREF (font_object
, FONT_FULLNAME_INDEX
);
4886 XVECTOR (info
)->contents
[2] = make_number (font
->pixel_size
);
4887 XVECTOR (info
)->contents
[3] = make_number (font
->height
);
4888 XVECTOR (info
)->contents
[4] = make_number (font
->baseline_offset
);
4889 XVECTOR (info
)->contents
[5] = make_number (font
->relative_compose
);
4890 XVECTOR (info
)->contents
[6] = make_number (font
->default_ascent
);
4893 /* As font_object is still in FONT_OBJLIST of the entity, we can't
4894 close it now. Perhaps, we should manage font-objects
4895 by `reference-count'. */
4896 font_close_object (f
, font_object
);
4903 #define BUILD_STYLE_TABLE(TBL) \
4904 build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry))
4907 build_style_table (const struct table_entry
*entry
, int nelement
)
4910 Lisp_Object table
, elt
;
4912 table
= Fmake_vector (make_number (nelement
), Qnil
);
4913 for (i
= 0; i
< nelement
; i
++)
4915 for (j
= 0; entry
[i
].names
[j
]; j
++);
4916 elt
= Fmake_vector (make_number (j
+ 1), Qnil
);
4917 ASET (elt
, 0, make_number (entry
[i
].numeric
));
4918 for (j
= 0; entry
[i
].names
[j
]; j
++)
4919 ASET (elt
, j
+ 1, intern_c_string (entry
[i
].names
[j
]));
4920 ASET (table
, i
, elt
);
4925 /* The deferred font-log data of the form [ACTION ARG RESULT].
4926 If ACTION is not nil, that is added to the log when font_add_log is
4927 called next time. At that time, ACTION is set back to nil. */
4928 static Lisp_Object Vfont_log_deferred
;
4930 /* Prepend the font-related logging data in Vfont_log if it is not
4931 `t'. ACTION describes a kind of font-related action (e.g. listing,
4932 opening), ARG is the argument for the action, and RESULT is the
4933 result of the action. */
4935 font_add_log (const char *action
, Lisp_Object arg
, Lisp_Object result
)
4940 if (EQ (Vfont_log
, Qt
))
4942 if (STRINGP (AREF (Vfont_log_deferred
, 0)))
4944 char *str
= SSDATA (AREF (Vfont_log_deferred
, 0));
4946 ASET (Vfont_log_deferred
, 0, Qnil
);
4947 font_add_log (str
, AREF (Vfont_log_deferred
, 1),
4948 AREF (Vfont_log_deferred
, 2));
4953 Lisp_Object tail
, elt
;
4954 Lisp_Object equalstr
= build_string ("=");
4956 val
= Ffont_xlfd_name (arg
, Qt
);
4957 for (tail
= AREF (arg
, FONT_EXTRA_INDEX
); CONSP (tail
);
4961 if (EQ (XCAR (elt
), QCscript
)
4962 && SYMBOLP (XCDR (elt
)))
4963 val
= concat3 (val
, SYMBOL_NAME (QCscript
),
4964 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
4965 else if (EQ (XCAR (elt
), QClang
)
4966 && SYMBOLP (XCDR (elt
)))
4967 val
= concat3 (val
, SYMBOL_NAME (QClang
),
4968 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
4969 else if (EQ (XCAR (elt
), QCotf
)
4970 && CONSP (XCDR (elt
)) && SYMBOLP (XCAR (XCDR (elt
))))
4971 val
= concat3 (val
, SYMBOL_NAME (QCotf
),
4973 SYMBOL_NAME (XCAR (XCDR (elt
)))));
4979 && VECTORP (XCAR (result
))
4980 && ASIZE (XCAR (result
)) > 0
4981 && FONTP (AREF (XCAR (result
), 0)))
4982 result
= font_vconcat_entity_vectors (result
);
4985 val
= Ffont_xlfd_name (result
, Qt
);
4986 if (! FONT_SPEC_P (result
))
4987 val
= concat3 (SYMBOL_NAME (AREF (result
, FONT_TYPE_INDEX
)),
4988 build_string (":"), val
);
4991 else if (CONSP (result
))
4994 result
= Fcopy_sequence (result
);
4995 for (tail
= result
; CONSP (tail
); tail
= XCDR (tail
))
4999 val
= Ffont_xlfd_name (val
, Qt
);
5000 XSETCAR (tail
, val
);
5003 else if (VECTORP (result
))
5005 result
= Fcopy_sequence (result
);
5006 for (i
= 0; i
< ASIZE (result
); i
++)
5008 val
= AREF (result
, i
);
5010 val
= Ffont_xlfd_name (val
, Qt
);
5011 ASET (result
, i
, val
);
5014 Vfont_log
= Fcons (list3 (intern (action
), arg
, result
), Vfont_log
);
5017 /* Record a font-related logging data to be added to Vfont_log when
5018 font_add_log is called next time. ACTION, ARG, RESULT are the same
5022 font_deferred_log (const char *action
, Lisp_Object arg
, Lisp_Object result
)
5024 if (EQ (Vfont_log
, Qt
))
5026 ASET (Vfont_log_deferred
, 0, build_string (action
));
5027 ASET (Vfont_log_deferred
, 1, arg
);
5028 ASET (Vfont_log_deferred
, 2, result
);
5034 sort_shift_bits
[FONT_TYPE_INDEX
] = 0;
5035 sort_shift_bits
[FONT_SLANT_INDEX
] = 2;
5036 sort_shift_bits
[FONT_WEIGHT_INDEX
] = 9;
5037 sort_shift_bits
[FONT_SIZE_INDEX
] = 16;
5038 sort_shift_bits
[FONT_WIDTH_INDEX
] = 23;
5039 /* Note that the other elements in sort_shift_bits are not used. */
5041 staticpro (&font_charset_alist
);
5042 font_charset_alist
= Qnil
;
5044 DEFSYM (Qopentype
, "opentype");
5046 DEFSYM (Qascii_0
, "ascii-0");
5047 DEFSYM (Qiso8859_1
, "iso8859-1");
5048 DEFSYM (Qiso10646_1
, "iso10646-1");
5049 DEFSYM (Qunicode_bmp
, "unicode-bmp");
5050 DEFSYM (Qunicode_sip
, "unicode-sip");
5054 DEFSYM (QCotf
, ":otf");
5055 DEFSYM (QClang
, ":lang");
5056 DEFSYM (QCscript
, ":script");
5057 DEFSYM (QCantialias
, ":antialias");
5059 DEFSYM (QCfoundry
, ":foundry");
5060 DEFSYM (QCadstyle
, ":adstyle");
5061 DEFSYM (QCregistry
, ":registry");
5062 DEFSYM (QCspacing
, ":spacing");
5063 DEFSYM (QCdpi
, ":dpi");
5064 DEFSYM (QCscalable
, ":scalable");
5065 DEFSYM (QCavgwidth
, ":avgwidth");
5066 DEFSYM (QCfont_entity
, ":font-entity");
5067 DEFSYM (QCfc_unknown_spec
, ":fc-unknown-spec");
5077 DEFSYM (QCuser_spec
, "user-spec");
5079 staticpro (&null_vector
);
5080 null_vector
= Fmake_vector (make_number (0), Qnil
);
5082 staticpro (&scratch_font_spec
);
5083 scratch_font_spec
= Ffont_spec (0, NULL
);
5084 staticpro (&scratch_font_prefer
);
5085 scratch_font_prefer
= Ffont_spec (0, NULL
);
5087 staticpro (&Vfont_log_deferred
);
5088 Vfont_log_deferred
= Fmake_vector (make_number (3), Qnil
);
5092 staticpro (&otf_list
);
5094 #endif /* HAVE_LIBOTF */
5098 defsubr (&Sfont_spec
);
5099 defsubr (&Sfont_get
);
5100 #ifdef HAVE_WINDOW_SYSTEM
5101 defsubr (&Sfont_face_attributes
);
5103 defsubr (&Sfont_put
);
5104 defsubr (&Slist_fonts
);
5105 defsubr (&Sfont_family_list
);
5106 defsubr (&Sfind_font
);
5107 defsubr (&Sfont_xlfd_name
);
5108 defsubr (&Sclear_font_cache
);
5109 defsubr (&Sfont_shape_gstring
);
5110 defsubr (&Sfont_variation_glyphs
);
5112 defsubr (&Sfont_drive_otf
);
5113 defsubr (&Sfont_otf_alternates
);
5117 defsubr (&Sopen_font
);
5118 defsubr (&Sclose_font
);
5119 defsubr (&Squery_font
);
5120 defsubr (&Sfont_get_glyphs
);
5121 defsubr (&Sfont_match_p
);
5122 defsubr (&Sfont_at
);
5124 defsubr (&Sdraw_string
);
5126 #endif /* FONT_DEBUG */
5127 #ifdef HAVE_WINDOW_SYSTEM
5128 defsubr (&Sfont_info
);
5131 DEFVAR_LISP ("font-encoding-alist", Vfont_encoding_alist
,
5133 Alist of fontname patterns vs the corresponding encoding and repertory info.
5134 Each element looks like (REGEXP . (ENCODING . REPERTORY)),
5135 where ENCODING is a charset or a char-table,
5136 and REPERTORY is a charset, a char-table, or nil.
5138 If ENCODING and REPERTORY are the same, the element can have the form
5139 \(REGEXP . ENCODING).
5141 ENCODING is for converting a character to a glyph code of the font.
5142 If ENCODING is a charset, encoding a character by the charset gives
5143 the corresponding glyph code. If ENCODING is a char-table, looking up
5144 the table by a character gives the corresponding glyph code.
5146 REPERTORY specifies a repertory of characters supported by the font.
5147 If REPERTORY is a charset, all characters beloging to the charset are
5148 supported. If REPERTORY is a char-table, all characters who have a
5149 non-nil value in the table are supported. If REPERTORY is nil, Emacs
5150 gets the repertory information by an opened font and ENCODING. */);
5151 Vfont_encoding_alist
= Qnil
;
5153 /* FIXME: These 3 vars are not quite what they appear: setq on them
5154 won't have any effect other than disconnect them from the style
5155 table used by the font display code. So we make them read-only,
5156 to avoid this confusing situation. */
5158 DEFVAR_LISP_NOPRO ("font-weight-table", Vfont_weight_table
,
5159 doc
: /* Vector of valid font weight values.
5160 Each element has the form:
5161 [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...]
5162 NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */);
5163 Vfont_weight_table
= BUILD_STYLE_TABLE (weight_table
);
5164 XSYMBOL (intern_c_string ("font-weight-table"))->constant
= 1;
5166 DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table
,
5167 doc
: /* Vector of font slant symbols vs the corresponding numeric values.
5168 See `font-weight-table' for the format of the vector. */);
5169 Vfont_slant_table
= BUILD_STYLE_TABLE (slant_table
);
5170 XSYMBOL (intern_c_string ("font-slant-table"))->constant
= 1;
5172 DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table
,
5173 doc
: /* Alist of font width symbols vs the corresponding numeric values.
5174 See `font-weight-table' for the format of the vector. */);
5175 Vfont_width_table
= BUILD_STYLE_TABLE (width_table
);
5176 XSYMBOL (intern_c_string ("font-width-table"))->constant
= 1;
5178 staticpro (&font_style_table
);
5179 font_style_table
= Fmake_vector (make_number (3), Qnil
);
5180 ASET (font_style_table
, 0, Vfont_weight_table
);
5181 ASET (font_style_table
, 1, Vfont_slant_table
);
5182 ASET (font_style_table
, 2, Vfont_width_table
);
5184 DEFVAR_LISP ("font-log", Vfont_log
, doc
: /*
5185 *Logging list of font related actions and results.
5186 The value t means to suppress the logging.
5187 The initial value is set to nil if the environment variable
5188 EMACS_FONT_LOG is set. Otherwise, it is set to t. */);
5191 #ifdef HAVE_WINDOW_SYSTEM
5192 #ifdef HAVE_FREETYPE
5194 #ifdef HAVE_X_WINDOWS
5199 #endif /* HAVE_XFT */
5200 #endif /* HAVE_X_WINDOWS */
5201 #else /* not HAVE_FREETYPE */
5202 #ifdef HAVE_X_WINDOWS
5204 #endif /* HAVE_X_WINDOWS */
5205 #endif /* not HAVE_FREETYPE */
5208 #endif /* HAVE_BDFFONT */
5211 #endif /* WINDOWSNT */
5214 #endif /* HAVE_NS */
5215 #endif /* HAVE_WINDOW_SYSTEM */
5221 Vfont_log
= egetenv ("EMACS_FONT_LOG") ? Qnil
: Qt
;