1 /* font.c -- "Font" primitives.
2 Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
3 Copyright (C) 2006, 2007, 2008, 2009
4 National Institute of Advanced Industrial Science and Technology (AIST)
5 Registration Number H13PRO009
7 This file is part of GNU Emacs.
9 GNU Emacs is free software: you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation, either version 3 of the License, or
12 (at your option) any later version.
14 GNU Emacs is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
32 #include "dispextern.h"
34 #include "character.h"
35 #include "composite.h"
41 #endif /* HAVE_X_WINDOWS */
45 #endif /* HAVE_NTGUI */
52 extern Lisp_Object Qfontsize
;
55 Lisp_Object Qopentype
;
57 /* Important character set strings. */
58 Lisp_Object Qascii_0
, Qiso8859_1
, Qiso10646_1
, Qunicode_bmp
, Qunicode_sip
;
60 #define DEFAULT_ENCODING Qiso8859_1
62 /* Unicode category `Cf'. */
63 static Lisp_Object QCf
;
65 /* Special vector of zero length. This is repeatedly used by (struct
66 font_driver *)->list when a specified font is not found. */
67 static Lisp_Object null_vector
;
69 static Lisp_Object Vfont_weight_table
, Vfont_slant_table
, Vfont_width_table
;
71 /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */
72 static Lisp_Object font_style_table
;
74 /* Structure used for tables mapping weight, slant, and width numeric
75 values and their names. */
80 /* The first one is a valid name as a face attribute.
81 The second one (if any) is a typical name in XLFD field. */
85 /* Table of weight numeric values and their names. This table must be
86 sorted by numeric values in ascending order. */
88 static const struct table_entry weight_table
[] =
91 { 20, { "ultra-light", "ultralight" }},
92 { 40, { "extra-light", "extralight" }},
94 { 75, { "semi-light", "semilight", "demilight", "book" }},
95 { 100, { "normal", "medium", "regular", "unspecified" }},
96 { 180, { "semi-bold", "semibold", "demibold", "demi" }},
98 { 205, { "extra-bold", "extrabold" }},
99 { 210, { "ultra-bold", "ultrabold", "black" }}
102 /* Table of slant numeric values and their names. This table must be
103 sorted by numeric values in ascending order. */
105 static const struct table_entry slant_table
[] =
107 { 0, { "reverse-oblique", "ro" }},
108 { 10, { "reverse-italic", "ri" }},
109 { 100, { "normal", "r", "unspecified" }},
110 { 200, { "italic" ,"i", "ot" }},
111 { 210, { "oblique", "o" }}
114 /* Table of width numeric values and their names. This table must be
115 sorted by numeric values in ascending order. */
117 static const struct table_entry width_table
[] =
119 { 50, { "ultra-condensed", "ultracondensed" }},
120 { 63, { "extra-condensed", "extracondensed" }},
121 { 75, { "condensed", "compressed", "narrow" }},
122 { 87, { "semi-condensed", "semicondensed", "demicondensed" }},
123 { 100, { "normal", "medium", "regular", "unspecified" }},
124 { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }},
125 { 125, { "expanded" }},
126 { 150, { "extra-expanded", "extraexpanded" }},
127 { 200, { "ultra-expanded", "ultraexpanded", "wide" }}
130 extern Lisp_Object Qnormal
;
132 /* Symbols representing keys of normal font properties. */
133 extern Lisp_Object QCtype
, QCfamily
, QCweight
, QCslant
, QCwidth
;
134 extern Lisp_Object QCheight
, QCsize
, QCname
;
136 Lisp_Object QCfoundry
, QCadstyle
, QCregistry
;
137 /* Symbols representing keys of font extra info. */
138 Lisp_Object QCspacing
, QCdpi
, QCscalable
, QCotf
, QClang
, QCscript
, QCavgwidth
;
139 Lisp_Object QCantialias
, QCfont_entity
, QCfc_unknown_spec
;
140 /* Symbols representing values of font spacing property. */
141 Lisp_Object Qc
, Qm
, Qp
, Qd
;
142 /* Special ADSTYLE properties to avoid fonts used for Latin
143 characters; used in xfont.c and ftfont.c. */
144 Lisp_Object Qja
, Qko
;
146 Lisp_Object QCuser_spec
;
148 Lisp_Object Vfont_encoding_alist
;
150 /* Alist of font registry symbol and the corresponding charsets
151 information. The information is retrieved from
152 Vfont_encoding_alist on demand.
154 Eash element has the form:
155 (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID))
159 In the former form, ENCODING-CHARSET-ID is an ID of a charset that
160 encodes a character code to a glyph code of a font, and
161 REPERTORY-CHARSET-ID is an ID of a charset that tells if a
162 character is supported by a font.
164 The latter form means that the information for REGISTRY couldn't be
166 static Lisp_Object font_charset_alist
;
168 /* List of all font drivers. Each font-backend (XXXfont.c) calls
169 register_font_driver in syms_of_XXXfont to register its font-driver
171 static struct font_driver_list
*font_driver_list
;
175 /* Creaters of font-related Lisp object. */
180 Lisp_Object font_spec
;
181 struct font_spec
*spec
182 = ((struct font_spec
*)
183 allocate_pseudovector (VECSIZE (struct font_spec
),
184 FONT_SPEC_MAX
, PVEC_FONT
));
185 XSETFONT (font_spec
, spec
);
192 Lisp_Object font_entity
;
193 struct font_entity
*entity
194 = ((struct font_entity
*)
195 allocate_pseudovector (VECSIZE (struct font_entity
),
196 FONT_ENTITY_MAX
, PVEC_FONT
));
197 XSETFONT (font_entity
, entity
);
201 /* Create a font-object whose structure size is SIZE. If ENTITY is
202 not nil, copy properties from ENTITY to the font-object. If
203 PIXELSIZE is positive, set the `size' property to PIXELSIZE. */
205 font_make_object (size
, entity
, pixelsize
)
210 Lisp_Object font_object
;
212 = (struct font
*) allocate_pseudovector (size
, FONT_OBJECT_MAX
, PVEC_FONT
);
215 XSETFONT (font_object
, font
);
219 for (i
= 1; i
< FONT_SPEC_MAX
; i
++)
220 font
->props
[i
] = AREF (entity
, i
);
221 if (! NILP (AREF (entity
, FONT_EXTRA_INDEX
)))
222 font
->props
[FONT_EXTRA_INDEX
]
223 = Fcopy_alist (AREF (entity
, FONT_EXTRA_INDEX
));
226 font
->props
[FONT_SIZE_INDEX
] = make_number (pixelsize
);
232 static int font_pixel_size
P_ ((FRAME_PTR f
, Lisp_Object
));
233 static Lisp_Object font_open_entity
P_ ((FRAME_PTR
, Lisp_Object
, int));
234 static Lisp_Object font_matching_entity
P_ ((FRAME_PTR
, Lisp_Object
*,
237 /* Number of registered font drivers. */
238 static int num_font_drivers
;
241 /* Return a Lispy value of a font property value at STR and LEN bytes.
242 If STR is "*", it returns nil.
243 If FORCE_SYMBOL is zero and all characters in STR are digits, it
244 returns an integer. Otherwise, it returns a symbol interned from
248 font_intern_prop (str
, len
, force_symbol
)
258 if (len
== 1 && *str
== '*')
260 if (!force_symbol
&& len
>=1 && isdigit (*str
))
262 for (i
= 1; i
< len
; i
++)
263 if (! isdigit (str
[i
]))
266 return make_number (atoi (str
));
269 /* The following code is copied from the function intern (in
270 lread.c), and modified to suite our purpose. */
272 if (!VECTORP (obarray
) || XVECTOR (obarray
)->size
== 0)
273 obarray
= check_obarray (obarray
);
274 parse_str_as_multibyte ((unsigned char *) str
, len
, &nchars
, &nbytes
);
275 if (len
== nchars
|| len
!= nbytes
)
276 /* CONTENTS contains no multibyte sequences or contains an invalid
277 multibyte sequence. We'll make a unibyte string. */
278 tem
= oblookup (obarray
, str
, len
, len
);
280 tem
= oblookup (obarray
, str
, nchars
, len
);
283 if (len
== nchars
|| len
!= nbytes
)
284 tem
= make_unibyte_string (str
, len
);
286 tem
= make_multibyte_string (str
, nchars
, len
);
287 return Fintern (tem
, obarray
);
290 /* Return a pixel size of font-spec SPEC on frame F. */
293 font_pixel_size (f
, spec
)
297 #ifdef HAVE_WINDOW_SYSTEM
298 Lisp_Object size
= AREF (spec
, FONT_SIZE_INDEX
);
307 font_assert (FLOATP (size
));
308 point_size
= XFLOAT_DATA (size
);
309 val
= AREF (spec
, FONT_DPI_INDEX
);
314 pixel_size
= POINT_TO_PIXEL (point_size
, dpi
);
322 /* Return a value of PROP's VAL (symbol or integer) to be stored in a
323 font vector. If VAL is not valid (i.e. not registered in
324 font_style_table), return -1 if NOERROR is zero, and return a
325 proper index if NOERROR is nonzero. In that case, register VAL in
326 font_style_table if VAL is a symbol, and return a closest index if
327 VAL is an integer. */
330 font_style_to_value (prop
, val
, noerror
)
331 enum font_property_index prop
;
335 Lisp_Object table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
336 int len
= ASIZE (table
);
342 Lisp_Object args
[2], elt
;
344 /* At first try exact match. */
345 for (i
= 0; i
< len
; i
++)
346 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
347 if (EQ (val
, AREF (AREF (table
, i
), j
)))
348 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
349 | (i
<< 4) | (j
- 1));
350 /* Try also with case-folding match. */
351 s
= SDATA (SYMBOL_NAME (val
));
352 for (i
= 0; i
< len
; i
++)
353 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
355 elt
= AREF (AREF (table
, i
), j
);
356 if (xstrcasecmp (s
, SDATA (SYMBOL_NAME (elt
))) == 0)
357 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
358 | (i
<< 4) | (j
- 1));
364 elt
= Fmake_vector (make_number (2), make_number (100));
367 args
[1] = Fmake_vector (make_number (1), elt
);
368 ASET (font_style_table
, prop
- FONT_WEIGHT_INDEX
, Fvconcat (2, args
));
369 return (100 << 8) | (i
<< 4);
374 int numeric
= XINT (val
);
376 for (i
= 0, last_n
= -1; i
< len
; i
++)
378 int n
= XINT (AREF (AREF (table
, i
), 0));
381 return (n
<< 8) | (i
<< 4);
386 return ((i
== 0 || n
- numeric
< numeric
- last_n
)
387 ? (n
<< 8) | (i
<< 4): (last_n
<< 8 | ((i
- 1) << 4)));
393 return ((last_n
<< 8) | ((i
- 1) << 4));
398 font_style_symbolic (font
, prop
, for_face
)
400 enum font_property_index prop
;
403 Lisp_Object val
= AREF (font
, prop
);
404 Lisp_Object table
, elt
;
409 table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
410 i
= XINT (val
) & 0xFF;
411 font_assert (((i
>> 4) & 0xF) < ASIZE (table
));
412 elt
= AREF (table
, ((i
>> 4) & 0xF));
413 font_assert ((i
& 0xF) + 1 < ASIZE (elt
));
414 return (for_face
? AREF (elt
, 1) : AREF (elt
, (i
& 0xF) + 1));
417 extern Lisp_Object Vface_alternative_font_family_alist
;
419 extern Lisp_Object find_font_encoding
P_ ((Lisp_Object
));
422 /* Return ENCODING or a cons of ENCODING and REPERTORY of the font
423 FONTNAME. ENCODING is a charset symbol that specifies the encoding
424 of the font. REPERTORY is a charset symbol or nil. */
427 find_font_encoding (fontname
)
428 Lisp_Object fontname
;
430 Lisp_Object tail
, elt
;
432 for (tail
= Vfont_encoding_alist
; CONSP (tail
); tail
= XCDR (tail
))
436 && STRINGP (XCAR (elt
))
437 && fast_string_match_ignore_case (XCAR (elt
), fontname
) >= 0
438 && (SYMBOLP (XCDR (elt
))
439 ? CHARSETP (XCDR (elt
))
440 : CONSP (XCDR (elt
)) && CHARSETP (XCAR (XCDR (elt
)))))
446 /* Return encoding charset and repertory charset for REGISTRY in
447 ENCODING and REPERTORY correspondingly. If correct information for
448 REGISTRY is available, return 0. Otherwise return -1. */
451 font_registry_charsets (registry
, encoding
, repertory
)
452 Lisp_Object registry
;
453 struct charset
**encoding
, **repertory
;
456 int encoding_id
, repertory_id
;
458 val
= Fassoc_string (registry
, font_charset_alist
, Qt
);
464 encoding_id
= XINT (XCAR (val
));
465 repertory_id
= XINT (XCDR (val
));
469 val
= find_font_encoding (SYMBOL_NAME (registry
));
470 if (SYMBOLP (val
) && CHARSETP (val
))
472 encoding_id
= repertory_id
= XINT (CHARSET_SYMBOL_ID (val
));
474 else if (CONSP (val
))
476 if (! CHARSETP (XCAR (val
)))
478 encoding_id
= XINT (CHARSET_SYMBOL_ID (XCAR (val
)));
479 if (NILP (XCDR (val
)))
483 if (! CHARSETP (XCDR (val
)))
485 repertory_id
= XINT (CHARSET_SYMBOL_ID (XCDR (val
)));
490 val
= Fcons (make_number (encoding_id
), make_number (repertory_id
));
492 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, val
), Qnil
));
496 *encoding
= CHARSET_FROM_ID (encoding_id
);
498 *repertory
= repertory_id
>= 0 ? CHARSET_FROM_ID (repertory_id
) : NULL
;
503 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, Qnil
), Qnil
));
508 /* Font property value validaters. See the comment of
509 font_property_table for the meaning of the arguments. */
511 static Lisp_Object font_prop_validate
P_ ((int, Lisp_Object
, Lisp_Object
));
512 static Lisp_Object font_prop_validate_symbol
P_ ((Lisp_Object
, Lisp_Object
));
513 static Lisp_Object font_prop_validate_style
P_ ((Lisp_Object
, Lisp_Object
));
514 static Lisp_Object font_prop_validate_non_neg
P_ ((Lisp_Object
, Lisp_Object
));
515 static Lisp_Object font_prop_validate_spacing
P_ ((Lisp_Object
, Lisp_Object
));
516 static int get_font_prop_index
P_ ((Lisp_Object
));
519 font_prop_validate_symbol (prop
, val
)
520 Lisp_Object prop
, val
;
523 val
= Fintern (val
, Qnil
);
526 else if (EQ (prop
, QCregistry
))
527 val
= Fintern (Fdowncase (SYMBOL_NAME (val
)), Qnil
);
533 font_prop_validate_style (style
, val
)
534 Lisp_Object style
, val
;
536 enum font_property_index prop
= (EQ (style
, QCweight
) ? FONT_WEIGHT_INDEX
537 : EQ (style
, QCslant
) ? FONT_SLANT_INDEX
544 >= ASIZE (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
)))
548 Lisp_Object elt
= AREF (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
), (n
>> 4) & 0xF);
550 if ((n
& 0xF) + 1 >= ASIZE (elt
))
552 else if (XINT (AREF (elt
, 0)) != (n
>> 8))
556 else if (SYMBOLP (val
))
558 int n
= font_style_to_value (prop
, val
, 0);
560 val
= n
>= 0 ? make_number (n
) : Qerror
;
568 font_prop_validate_non_neg (prop
, val
)
569 Lisp_Object prop
, val
;
571 return (NATNUMP (val
) || (FLOATP (val
) && XFLOAT_DATA (val
) >= 0)
576 font_prop_validate_spacing (prop
, val
)
577 Lisp_Object prop
, val
;
579 if (NILP (val
) || (NATNUMP (val
) && XINT (val
) <= FONT_SPACING_CHARCELL
))
581 if (SYMBOLP (val
) && SBYTES (SYMBOL_NAME (val
)) == 1)
583 char spacing
= SDATA (SYMBOL_NAME (val
))[0];
585 if (spacing
== 'c' || spacing
== 'C')
586 return make_number (FONT_SPACING_CHARCELL
);
587 if (spacing
== 'm' || spacing
== 'M')
588 return make_number (FONT_SPACING_MONO
);
589 if (spacing
== 'p' || spacing
== 'P')
590 return make_number (FONT_SPACING_PROPORTIONAL
);
591 if (spacing
== 'd' || spacing
== 'D')
592 return make_number (FONT_SPACING_DUAL
);
598 font_prop_validate_otf (prop
, val
)
599 Lisp_Object prop
, val
;
601 Lisp_Object tail
, tmp
;
604 /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]])
605 GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil
606 GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */
609 if (! SYMBOLP (XCAR (val
)))
614 if (! CONSP (tail
) || ! SYMBOLP (XCAR (val
)))
616 for (i
= 0; i
< 2; i
++)
623 for (tmp
= XCAR (tail
); CONSP (tmp
); tmp
= XCDR (tmp
))
624 if (! SYMBOLP (XCAR (tmp
)))
632 /* Structure of known font property keys and validater of the
636 /* Pointer to the key symbol. */
638 /* Function to validate PROP's value VAL, or NULL if any value is
639 ok. The value is VAL or its regularized value if VAL is valid,
640 and Qerror if not. */
641 Lisp_Object (*validater
) P_ ((Lisp_Object prop
, Lisp_Object val
));
642 } font_property_table
[] =
643 { { &QCtype
, font_prop_validate_symbol
},
644 { &QCfoundry
, font_prop_validate_symbol
},
645 { &QCfamily
, font_prop_validate_symbol
},
646 { &QCadstyle
, font_prop_validate_symbol
},
647 { &QCregistry
, font_prop_validate_symbol
},
648 { &QCweight
, font_prop_validate_style
},
649 { &QCslant
, font_prop_validate_style
},
650 { &QCwidth
, font_prop_validate_style
},
651 { &QCsize
, font_prop_validate_non_neg
},
652 { &QCdpi
, font_prop_validate_non_neg
},
653 { &QCspacing
, font_prop_validate_spacing
},
654 { &QCavgwidth
, font_prop_validate_non_neg
},
655 /* The order of the above entries must match with enum
656 font_property_index. */
657 { &QClang
, font_prop_validate_symbol
},
658 { &QCscript
, font_prop_validate_symbol
},
659 { &QCotf
, font_prop_validate_otf
}
662 /* Size (number of elements) of the above table. */
663 #define FONT_PROPERTY_TABLE_SIZE \
664 ((sizeof font_property_table) / (sizeof *font_property_table))
666 /* Return an index number of font property KEY or -1 if KEY is not an
667 already known property. */
670 get_font_prop_index (key
)
675 for (i
= 0; i
< FONT_PROPERTY_TABLE_SIZE
; i
++)
676 if (EQ (key
, *font_property_table
[i
].key
))
681 /* Validate the font property. The property key is specified by the
682 symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid,
683 signal an error. The value is VAL or the regularized one. */
686 font_prop_validate (idx
, prop
, val
)
688 Lisp_Object prop
, val
;
690 Lisp_Object validated
;
695 prop
= *font_property_table
[idx
].key
;
698 idx
= get_font_prop_index (prop
);
702 validated
= (font_property_table
[idx
].validater
) (prop
, val
);
703 if (EQ (validated
, Qerror
))
704 signal_error ("invalid font property", Fcons (prop
, val
));
709 /* Store VAL as a value of extra font property PROP in FONT while
710 keeping the sorting order. Don't check the validity of VAL. */
713 font_put_extra (font
, prop
, val
)
714 Lisp_Object font
, prop
, val
;
716 Lisp_Object extra
= AREF (font
, FONT_EXTRA_INDEX
);
717 Lisp_Object slot
= (NILP (extra
) ? Qnil
: assq_no_quit (prop
, extra
));
721 Lisp_Object prev
= Qnil
;
724 && NILP (Fstring_lessp (prop
, XCAR (XCAR (extra
)))))
725 prev
= extra
, extra
= XCDR (extra
);
728 ASET (font
, FONT_EXTRA_INDEX
, Fcons (Fcons (prop
, val
), extra
));
730 XSETCDR (prev
, Fcons (Fcons (prop
, val
), extra
));
736 ASET (font
, FONT_EXTRA_INDEX
, Fdelq (slot
, extra
));
741 /* Font name parser and unparser */
743 static int parse_matrix
P_ ((char *));
744 static int font_expand_wildcards
P_ ((Lisp_Object
*, int));
745 static int font_parse_name
P_ ((char *, Lisp_Object
));
747 /* An enumerator for each field of an XLFD font name. */
748 enum xlfd_field_index
767 /* An enumerator for mask bit corresponding to each XLFD field. */
770 XLFD_FOUNDRY_MASK
= 0x0001,
771 XLFD_FAMILY_MASK
= 0x0002,
772 XLFD_WEIGHT_MASK
= 0x0004,
773 XLFD_SLANT_MASK
= 0x0008,
774 XLFD_SWIDTH_MASK
= 0x0010,
775 XLFD_ADSTYLE_MASK
= 0x0020,
776 XLFD_PIXEL_MASK
= 0x0040,
777 XLFD_POINT_MASK
= 0x0080,
778 XLFD_RESX_MASK
= 0x0100,
779 XLFD_RESY_MASK
= 0x0200,
780 XLFD_SPACING_MASK
= 0x0400,
781 XLFD_AVGWIDTH_MASK
= 0x0800,
782 XLFD_REGISTRY_MASK
= 0x1000,
783 XLFD_ENCODING_MASK
= 0x2000
787 /* Parse P pointing the pixel/point size field of the form
788 `[A B C D]' which specifies a transformation matrix:
794 by which all glyphs of the font are transformed. The spec says
795 that scalar value N for the pixel/point size is equivalent to:
796 A = N * resx/resy, B = C = 0, D = N.
798 Return the scalar value N if the form is valid. Otherwise return
809 for (i
= 0, p
++; i
< 4 && *p
&& *p
!= ']'; i
++)
812 matrix
[i
] = - strtod (p
+ 1, &end
);
814 matrix
[i
] = strtod (p
, &end
);
817 return (i
== 4 ? (int) matrix
[3] : -1);
820 /* Expand a wildcard field in FIELD (the first N fields are filled) to
821 multiple fields to fill in all 14 XLFD fields while restring a
822 field position by its contents. */
825 font_expand_wildcards (field
, n
)
826 Lisp_Object field
[XLFD_LAST_INDEX
];
830 Lisp_Object tmp
[XLFD_LAST_INDEX
];
831 /* Array of information about where this element can go. Nth
832 element is for Nth element of FIELD. */
834 /* Minimum possible field. */
836 /* Maxinum possible field. */
838 /* Bit mask of possible field. Nth bit corresponds to Nth field. */
840 } range
[XLFD_LAST_INDEX
];
842 int range_from
, range_to
;
845 #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \
846 | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK)
847 #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK)
848 #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \
849 | XLFD_AVGWIDTH_MASK)
850 #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK)
852 /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th
853 field. The value is shifted to left one bit by one in the
855 for (i
= 0, range_mask
= 0; i
<= 14 - n
; i
++)
856 range_mask
= (range_mask
<< 1) | 1;
858 /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a
859 position-based retriction for FIELD[I]. */
860 for (i
= 0, range_from
= 0, range_to
= 14 - n
; i
< n
;
861 i
++, range_from
++, range_to
++, range_mask
<<= 1)
863 Lisp_Object val
= field
[i
];
869 range
[i
].from
= range_from
;
870 range
[i
].to
= range_to
;
871 range
[i
].mask
= range_mask
;
875 /* The triplet FROM, TO, and MASK is a value-based
876 retriction for FIELD[I]. */
882 int numeric
= XINT (val
);
885 from
= to
= XLFD_ENCODING_INDEX
,
886 mask
= XLFD_ENCODING_MASK
;
887 else if (numeric
== 0)
888 from
= XLFD_PIXEL_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
889 mask
= XLFD_PIXEL_MASK
| XLFD_LARGENUM_MASK
;
890 else if (numeric
<= 48)
891 from
= to
= XLFD_PIXEL_INDEX
,
892 mask
= XLFD_PIXEL_MASK
;
894 from
= XLFD_POINT_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
895 mask
= XLFD_LARGENUM_MASK
;
897 else if (SBYTES (SYMBOL_NAME (val
)) == 0)
898 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ADSTYLE_INDEX
,
899 mask
= XLFD_NULL_MASK
;
901 from
= to
= XLFD_FOUNDRY_INDEX
, mask
= XLFD_FOUNDRY_MASK
;
904 Lisp_Object name
= SYMBOL_NAME (val
);
906 if (SDATA (name
)[SBYTES (name
) - 1] == '*')
907 from
= XLFD_REGISTRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
908 mask
= XLFD_REGENC_MASK
;
910 from
= to
= XLFD_ENCODING_INDEX
,
911 mask
= XLFD_ENCODING_MASK
;
913 else if (range_from
<= XLFD_WEIGHT_INDEX
914 && range_to
>= XLFD_WEIGHT_INDEX
915 && FONT_WEIGHT_NAME_NUMERIC (val
) >= 0)
916 from
= to
= XLFD_WEIGHT_INDEX
, mask
= XLFD_WEIGHT_MASK
;
917 else if (range_from
<= XLFD_SLANT_INDEX
918 && range_to
>= XLFD_SLANT_INDEX
919 && FONT_SLANT_NAME_NUMERIC (val
) >= 0)
920 from
= to
= XLFD_SLANT_INDEX
, mask
= XLFD_SLANT_MASK
;
921 else if (range_from
<= XLFD_SWIDTH_INDEX
922 && range_to
>= XLFD_SWIDTH_INDEX
923 && FONT_WIDTH_NAME_NUMERIC (val
) >= 0)
924 from
= to
= XLFD_SWIDTH_INDEX
, mask
= XLFD_SWIDTH_MASK
;
927 if (EQ (val
, Qc
) || EQ (val
, Qm
) || EQ (val
, Qp
) || EQ (val
, Qd
))
928 from
= to
= XLFD_SPACING_INDEX
, mask
= XLFD_SPACING_MASK
;
930 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
931 mask
= XLFD_SYMBOL_MASK
;
934 /* Merge position-based and value-based restrictions. */
936 while (from
< range_from
)
937 mask
&= ~(1 << from
++);
938 while (from
< 14 && ! (mask
& (1 << from
)))
940 while (to
> range_to
)
941 mask
&= ~(1 << to
--);
942 while (to
>= 0 && ! (mask
& (1 << to
)))
946 range
[i
].from
= from
;
948 range
[i
].mask
= mask
;
950 if (from
> range_from
|| to
< range_to
)
952 /* The range is narrowed by value-based restrictions.
953 Reflect it to the other fields. */
955 /* Following fields should be after FROM. */
957 /* Preceding fields should be before TO. */
958 for (j
= i
- 1, from
--, to
--; j
>= 0; j
--, from
--, to
--)
960 /* Check FROM for non-wildcard field. */
961 if (! NILP (tmp
[j
]) && range
[j
].from
< from
)
963 while (range
[j
].from
< from
)
964 range
[j
].mask
&= ~(1 << range
[j
].from
++);
965 while (from
< 14 && ! (range
[j
].mask
& (1 << from
)))
967 range
[j
].from
= from
;
970 from
= range
[j
].from
;
971 if (range
[j
].to
> to
)
973 while (range
[j
].to
> to
)
974 range
[j
].mask
&= ~(1 << range
[j
].to
--);
975 while (to
>= 0 && ! (range
[j
].mask
& (1 << to
)))
988 /* Decide all fileds from restrictions in RANGE. */
989 for (i
= j
= 0; i
< n
; i
++)
991 if (j
< range
[i
].from
)
993 if (i
== 0 || ! NILP (tmp
[i
- 1]))
994 /* None of TMP[X] corresponds to Jth field. */
996 for (; j
< range
[i
].from
; j
++)
1001 if (! NILP (tmp
[n
- 1]) && j
< XLFD_REGISTRY_INDEX
)
1003 for (; j
< XLFD_LAST_INDEX
; j
++)
1005 if (INTEGERP (field
[XLFD_ENCODING_INDEX
]))
1006 field
[XLFD_ENCODING_INDEX
]
1007 = Fintern (Fnumber_to_string (field
[XLFD_ENCODING_INDEX
]), Qnil
);
1012 #ifdef ENABLE_CHECKING
1013 /* Match a 14-field XLFD pattern against a full XLFD font name. */
1015 font_match_xlfd (char *pattern
, char *name
)
1017 while (*pattern
&& *name
)
1019 if (*pattern
== *name
)
1021 else if (*pattern
== '*')
1022 if (*name
== pattern
[1])
1033 /* Make sure the font object matches the XLFD font name. */
1035 font_check_xlfd_parse (Lisp_Object font
, char *name
)
1037 char name_check
[256];
1038 font_unparse_xlfd (font
, 0, name_check
, 255);
1039 return font_match_xlfd (name_check
, name
);
1045 /* Parse NAME (null terminated) as XLFD and store information in FONT
1046 (font-spec or font-entity). Size property of FONT is set as
1048 specified XLFD fields FONT property
1049 --------------------- -------------
1050 PIXEL_SIZE PIXEL_SIZE (Lisp integer)
1051 POINT_SIZE and RESY calculated pixel size (Lisp integer)
1052 POINT_SIZE POINT_SIZE/10 (Lisp float)
1054 If NAME is successfully parsed, return 0. Otherwise return -1.
1056 FONT is usually a font-spec, but when this function is called from
1057 X font backend driver, it is a font-entity. In that case, NAME is
1058 a fully specified XLFD. */
1061 font_parse_xlfd (name
, font
)
1065 int len
= strlen (name
);
1067 char *f
[XLFD_LAST_INDEX
+ 1];
1071 if (len
> 255 || !len
)
1072 /* Maximum XLFD name length is 255. */
1074 /* Accept "*-.." as a fully specified XLFD. */
1075 if (name
[0] == '*' && (len
== 1 || name
[1] == '-'))
1076 i
= 1, f
[XLFD_FOUNDRY_INDEX
] = name
;
1079 for (p
= name
+ i
; *p
; p
++)
1083 if (i
== XLFD_LAST_INDEX
)
1088 #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0)
1089 #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1)
1091 if (i
== XLFD_LAST_INDEX
)
1093 /* Fully specified XLFD. */
1096 ASET (font
, FONT_FOUNDRY_INDEX
, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX
));
1097 ASET (font
, FONT_FAMILY_INDEX
, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX
));
1098 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1099 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1101 val
= INTERN_FIELD_SYM (i
);
1104 if ((n
= font_style_to_value (j
, INTERN_FIELD_SYM (i
), 0)) < 0)
1106 ASET (font
, j
, make_number (n
));
1109 ASET (font
, FONT_ADSTYLE_INDEX
, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX
));
1110 if (strcmp (f
[XLFD_REGISTRY_INDEX
], "*-*") == 0)
1111 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
1113 ASET (font
, FONT_REGISTRY_INDEX
,
1114 font_intern_prop (f
[XLFD_REGISTRY_INDEX
],
1115 f
[XLFD_LAST_INDEX
] - f
[XLFD_REGISTRY_INDEX
],
1117 p
= f
[XLFD_PIXEL_INDEX
];
1118 if (*p
== '[' && (pixel_size
= parse_matrix (p
)) >= 0)
1119 ASET (font
, FONT_SIZE_INDEX
, make_number (pixel_size
));
1122 val
= INTERN_FIELD (XLFD_PIXEL_INDEX
);
1124 ASET (font
, FONT_SIZE_INDEX
, val
);
1127 double point_size
= -1;
1129 font_assert (FONT_SPEC_P (font
));
1130 p
= f
[XLFD_POINT_INDEX
];
1132 point_size
= parse_matrix (p
);
1133 else if (isdigit (*p
))
1134 point_size
= atoi (p
), point_size
/= 10;
1135 if (point_size
>= 0)
1136 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1140 val
= INTERN_FIELD (XLFD_RESY_INDEX
);
1141 if (! NILP (val
) && ! INTEGERP (val
))
1143 ASET (font
, FONT_DPI_INDEX
, val
);
1144 val
= INTERN_FIELD (XLFD_SPACING_INDEX
);
1147 val
= font_prop_validate_spacing (QCspacing
, val
);
1148 if (! INTEGERP (val
))
1150 ASET (font
, FONT_SPACING_INDEX
, val
);
1152 p
= f
[XLFD_AVGWIDTH_INDEX
];
1155 val
= font_intern_prop (p
, f
[XLFD_REGISTRY_INDEX
] - 1 - p
, 0);
1156 if (! NILP (val
) && ! INTEGERP (val
))
1158 ASET (font
, FONT_AVGWIDTH_INDEX
, val
);
1162 int wild_card_found
= 0;
1163 Lisp_Object prop
[XLFD_LAST_INDEX
];
1165 if (FONT_ENTITY_P (font
))
1167 for (j
= 0; j
< i
; j
++)
1171 if (f
[j
][1] && f
[j
][1] != '-')
1174 wild_card_found
= 1;
1177 prop
[j
] = INTERN_FIELD (j
);
1179 prop
[j
] = font_intern_prop (f
[j
], f
[i
] - f
[j
], 0);
1181 if (! wild_card_found
)
1183 if (font_expand_wildcards (prop
, i
) < 0)
1186 ASET (font
, FONT_FOUNDRY_INDEX
, prop
[XLFD_FOUNDRY_INDEX
]);
1187 ASET (font
, FONT_FAMILY_INDEX
, prop
[XLFD_FAMILY_INDEX
]);
1188 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1189 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1190 if (! NILP (prop
[i
]))
1192 if ((n
= font_style_to_value (j
, prop
[i
], 1)) < 0)
1194 ASET (font
, j
, make_number (n
));
1196 ASET (font
, FONT_ADSTYLE_INDEX
, prop
[XLFD_ADSTYLE_INDEX
]);
1197 val
= prop
[XLFD_REGISTRY_INDEX
];
1200 val
= prop
[XLFD_ENCODING_INDEX
];
1202 val
= concat2 (build_string ("*-"), SYMBOL_NAME (val
));
1204 else if (NILP (prop
[XLFD_ENCODING_INDEX
]))
1205 val
= concat2 (SYMBOL_NAME (val
), build_string ("-*"));
1207 val
= concat3 (SYMBOL_NAME (val
), build_string ("-"),
1208 SYMBOL_NAME (prop
[XLFD_ENCODING_INDEX
]));
1210 ASET (font
, FONT_REGISTRY_INDEX
, Fintern (val
, Qnil
));
1212 if (INTEGERP (prop
[XLFD_PIXEL_INDEX
]))
1213 ASET (font
, FONT_SIZE_INDEX
, prop
[XLFD_PIXEL_INDEX
]);
1214 else if (INTEGERP (prop
[XLFD_POINT_INDEX
]))
1216 double point_size
= XINT (prop
[XLFD_POINT_INDEX
]);
1218 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
/ 10));
1221 if (INTEGERP (prop
[XLFD_RESX_INDEX
]))
1222 ASET (font
, FONT_DPI_INDEX
, prop
[XLFD_RESY_INDEX
]);
1223 if (! NILP (prop
[XLFD_SPACING_INDEX
]))
1225 val
= font_prop_validate_spacing (QCspacing
,
1226 prop
[XLFD_SPACING_INDEX
]);
1227 if (! INTEGERP (val
))
1229 ASET (font
, FONT_SPACING_INDEX
, val
);
1231 if (INTEGERP (prop
[XLFD_AVGWIDTH_INDEX
]))
1232 ASET (font
, FONT_AVGWIDTH_INDEX
, prop
[XLFD_AVGWIDTH_INDEX
]);
1238 /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES
1239 length), and return the name length. If FONT_SIZE_INDEX of FONT is
1240 0, use PIXEL_SIZE instead. */
1243 font_unparse_xlfd (font
, pixel_size
, name
, nbytes
)
1249 char *f
[XLFD_REGISTRY_INDEX
+ 1];
1253 font_assert (FONTP (font
));
1255 for (i
= FONT_FOUNDRY_INDEX
, j
= XLFD_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
;
1258 if (i
== FONT_ADSTYLE_INDEX
)
1259 j
= XLFD_ADSTYLE_INDEX
;
1260 else if (i
== FONT_REGISTRY_INDEX
)
1261 j
= XLFD_REGISTRY_INDEX
;
1262 val
= AREF (font
, i
);
1265 if (j
== XLFD_REGISTRY_INDEX
)
1266 f
[j
] = "*-*", len
+= 4;
1268 f
[j
] = "*", len
+= 2;
1273 val
= SYMBOL_NAME (val
);
1274 if (j
== XLFD_REGISTRY_INDEX
1275 && ! strchr ((char *) SDATA (val
), '-'))
1277 /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */
1278 if (SDATA (val
)[SBYTES (val
) - 1] == '*')
1280 f
[j
] = alloca (SBYTES (val
) + 3);
1281 sprintf (f
[j
], "%s-*", SDATA (val
));
1282 len
+= SBYTES (val
) + 3;
1286 f
[j
] = alloca (SBYTES (val
) + 4);
1287 sprintf (f
[j
], "%s*-*", SDATA (val
));
1288 len
+= SBYTES (val
) + 4;
1292 f
[j
] = (char *) SDATA (val
), len
+= SBYTES (val
) + 1;
1296 for (i
= FONT_WEIGHT_INDEX
, j
= XLFD_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
;
1299 val
= font_style_symbolic (font
, i
, 0);
1301 f
[j
] = "*", len
+= 2;
1304 val
= SYMBOL_NAME (val
);
1305 f
[j
] = (char *) SDATA (val
), len
+= SBYTES (val
) + 1;
1309 val
= AREF (font
, FONT_SIZE_INDEX
);
1310 font_assert (NUMBERP (val
) || NILP (val
));
1318 f
[XLFD_PIXEL_INDEX
] = alloca (22);
1319 len
+= sprintf (f
[XLFD_PIXEL_INDEX
], "%d-*", i
) + 1;
1322 f
[XLFD_PIXEL_INDEX
] = "*-*", len
+= 4;
1324 else if (FLOATP (val
))
1326 i
= XFLOAT_DATA (val
) * 10;
1327 f
[XLFD_PIXEL_INDEX
] = alloca (12);
1328 len
+= sprintf (f
[XLFD_PIXEL_INDEX
], "*-%d", i
) + 1;
1331 f
[XLFD_PIXEL_INDEX
] = "*-*", len
+= 4;
1333 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1335 i
= XINT (AREF (font
, FONT_DPI_INDEX
));
1336 f
[XLFD_RESX_INDEX
] = alloca (22);
1337 len
+= sprintf (f
[XLFD_RESX_INDEX
],
1341 f
[XLFD_RESX_INDEX
] = "*-*", len
+= 4;
1342 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1344 int spacing
= XINT (AREF (font
, FONT_SPACING_INDEX
));
1346 f
[XLFD_SPACING_INDEX
] = (spacing
<= FONT_SPACING_PROPORTIONAL
? "p"
1347 : spacing
<= FONT_SPACING_DUAL
? "d"
1348 : spacing
<= FONT_SPACING_MONO
? "m"
1353 f
[XLFD_SPACING_INDEX
] = "*", len
+= 2;
1354 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1356 f
[XLFD_AVGWIDTH_INDEX
] = alloca (11);
1357 len
+= sprintf (f
[XLFD_AVGWIDTH_INDEX
], "%ld",
1358 (long) XINT (AREF (font
, FONT_AVGWIDTH_INDEX
))) + 1;
1361 f
[XLFD_AVGWIDTH_INDEX
] = "*", len
+= 2;
1362 len
++; /* for terminating '\0'. */
1365 return sprintf (name
, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
1366 f
[XLFD_FOUNDRY_INDEX
], f
[XLFD_FAMILY_INDEX
],
1367 f
[XLFD_WEIGHT_INDEX
], f
[XLFD_SLANT_INDEX
],
1368 f
[XLFD_SWIDTH_INDEX
], f
[XLFD_ADSTYLE_INDEX
],
1369 f
[XLFD_PIXEL_INDEX
], f
[XLFD_RESX_INDEX
],
1370 f
[XLFD_SPACING_INDEX
], f
[XLFD_AVGWIDTH_INDEX
],
1371 f
[XLFD_REGISTRY_INDEX
]);
1374 /* Parse NAME (null terminated) and store information in FONT
1375 (font-spec or font-entity). NAME is supplied in either the
1376 Fontconfig or GTK font name format. If NAME is successfully
1377 parsed, return 0. Otherwise return -1.
1379 The fontconfig format is
1381 FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]]
1385 FAMILY [PROPS...] [SIZE]
1387 This function tries to guess which format it is. */
1390 font_parse_fcname (name
, font
)
1395 char *size_beg
= NULL
, *size_end
= NULL
;
1396 char *props_beg
= NULL
, *family_end
= NULL
;
1397 int len
= strlen (name
);
1402 for (p
= name
; *p
; p
++)
1404 if (*p
== '\\' && p
[1])
1408 props_beg
= family_end
= p
;
1413 int decimal
= 0, size_found
= 1;
1414 for (q
= p
+ 1; *q
&& *q
!= ':'; q
++)
1417 if (*q
!= '.' || decimal
)
1436 Lisp_Object extra_props
= Qnil
;
1438 /* A fontconfig name with size and/or property data. */
1439 if (family_end
> name
)
1442 family
= font_intern_prop (name
, family_end
- name
, 1);
1443 ASET (font
, FONT_FAMILY_INDEX
, family
);
1447 double point_size
= strtod (size_beg
, &size_end
);
1448 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1449 if (*size_end
== ':' && size_end
[1])
1450 props_beg
= size_end
;
1454 /* Now parse ":KEY=VAL" patterns. */
1457 for (p
= props_beg
; *p
; p
= q
)
1459 for (q
= p
+ 1; *q
&& *q
!= '=' && *q
!= ':'; q
++);
1462 /* Must be an enumerated value. */
1466 val
= font_intern_prop (p
, q
- p
, 1);
1468 #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0)
1470 if (PROP_MATCH ("light", 5)
1471 || PROP_MATCH ("medium", 6)
1472 || PROP_MATCH ("demibold", 8)
1473 || PROP_MATCH ("bold", 4)
1474 || PROP_MATCH ("black", 5))
1475 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, val
);
1476 else if (PROP_MATCH ("roman", 5)
1477 || PROP_MATCH ("italic", 6)
1478 || PROP_MATCH ("oblique", 7))
1479 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, val
);
1480 else if (PROP_MATCH ("charcell", 8))
1481 ASET (font
, FONT_SPACING_INDEX
,
1482 make_number (FONT_SPACING_CHARCELL
));
1483 else if (PROP_MATCH ("mono", 4))
1484 ASET (font
, FONT_SPACING_INDEX
,
1485 make_number (FONT_SPACING_MONO
));
1486 else if (PROP_MATCH ("proportional", 12))
1487 ASET (font
, FONT_SPACING_INDEX
,
1488 make_number (FONT_SPACING_PROPORTIONAL
));
1497 if (q
- p
== 10 && memcmp (p
+ 1, "pixelsize", 9) == 0)
1498 prop
= FONT_SIZE_INDEX
;
1501 key
= font_intern_prop (p
, q
- p
, 1);
1502 prop
= get_font_prop_index (key
);
1506 for (q
= p
; *q
&& *q
!= ':'; q
++);
1507 val
= font_intern_prop (p
, q
- p
, 0);
1509 if (prop
>= FONT_FOUNDRY_INDEX
1510 && prop
< FONT_EXTRA_INDEX
)
1511 ASET (font
, prop
, font_prop_validate (prop
, Qnil
, val
));
1514 extra_props
= nconc2 (extra_props
,
1515 Fcons (Fcons (key
, val
), Qnil
));
1522 if (! NILP (extra_props
))
1524 struct font_driver_list
*driver_list
= font_driver_list
;
1525 for ( ; driver_list
; driver_list
= driver_list
->next
)
1526 if (driver_list
->driver
->filter_properties
)
1527 (*driver_list
->driver
->filter_properties
) (font
, extra_props
);
1533 /* Either a fontconfig-style name with no size and property
1534 data, or a GTK-style name. */
1536 int word_len
, prop_found
= 0;
1538 for (p
= name
; *p
; p
= *q
? q
+ 1 : q
)
1544 for (q
= p
+ 1; *q
&& *q
!= ' '; q
++)
1552 double point_size
= strtod (p
, &q
);
1553 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1558 for (q
= p
+ 1; *q
&& *q
!= ' '; q
++)
1559 if (*q
== '\\' && q
[1])
1563 #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0)
1565 if (PROP_MATCH ("Ultra-Light", 11))
1568 prop
= font_intern_prop ("ultra-light", 11, 1);
1569 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1571 else if (PROP_MATCH ("Light", 5))
1574 prop
= font_intern_prop ("light", 5, 1);
1575 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1577 else if (PROP_MATCH ("Semi-Bold", 9))
1580 prop
= font_intern_prop ("semi-bold", 9, 1);
1581 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1583 else if (PROP_MATCH ("Bold", 4))
1586 prop
= font_intern_prop ("bold", 4, 1);
1587 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1589 else if (PROP_MATCH ("Italic", 6))
1592 prop
= font_intern_prop ("italic", 4, 1);
1593 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, prop
);
1595 else if (PROP_MATCH ("Oblique", 7))
1598 prop
= font_intern_prop ("oblique", 7, 1);
1599 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, prop
);
1603 return -1; /* Unknown property in GTK-style font name. */
1612 family
= font_intern_prop (name
, family_end
- name
, 1);
1613 ASET (font
, FONT_FAMILY_INDEX
, family
);
1620 /* Store fontconfig's font name of FONT (font-spec or font-entity) in
1621 NAME (NBYTES length), and return the name length. If
1622 FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */
1625 font_unparse_fcname (font
, pixel_size
, name
, nbytes
)
1631 Lisp_Object family
, foundry
;
1632 Lisp_Object tail
, val
;
1636 Lisp_Object styles
[3];
1637 char *style_names
[3] = { "weight", "slant", "width" };
1640 family
= AREF (font
, FONT_FAMILY_INDEX
);
1641 if (! NILP (family
))
1643 if (SYMBOLP (family
))
1645 family
= SYMBOL_NAME (family
);
1646 len
+= SBYTES (family
);
1652 val
= AREF (font
, FONT_SIZE_INDEX
);
1655 if (XINT (val
) != 0)
1656 pixel_size
= XINT (val
);
1658 len
+= 21; /* for ":pixelsize=NUM" */
1660 else if (FLOATP (val
))
1663 point_size
= (int) XFLOAT_DATA (val
);
1664 len
+= 11; /* for "-NUM" */
1667 foundry
= AREF (font
, FONT_FOUNDRY_INDEX
);
1668 if (! NILP (foundry
))
1670 if (SYMBOLP (foundry
))
1672 foundry
= SYMBOL_NAME (foundry
);
1673 len
+= 9 + SBYTES (foundry
); /* ":foundry=NAME" */
1679 for (i
= 0; i
< 3; i
++)
1681 styles
[i
] = font_style_symbolic (font
, FONT_WEIGHT_INDEX
+ i
, 0);
1682 if (! NILP (styles
[i
]))
1683 len
+= sprintf (work
, ":%s=%s", style_names
[i
],
1684 SDATA (SYMBOL_NAME (styles
[i
])));
1687 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1688 len
+= sprintf (work
, ":dpi=%ld", (long)XINT (AREF (font
, FONT_DPI_INDEX
)));
1689 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1690 len
+= strlen (":spacing=100");
1691 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1692 len
+= strlen (":scalable=false"); /* or ":scalable=true" */
1693 for (tail
= AREF (font
, FONT_EXTRA_INDEX
); CONSP (tail
); tail
= XCDR (tail
))
1695 Lisp_Object key
= XCAR (XCAR (tail
)), val
= XCDR (XCAR (tail
));
1697 len
+= SBYTES (SYMBOL_NAME (key
)) + 1; /* for :KEY= */
1699 len
+= SBYTES (val
);
1700 else if (INTEGERP (val
))
1701 len
+= sprintf (work
, "%ld", (long) XINT (val
));
1702 else if (SYMBOLP (val
))
1703 len
+= (NILP (val
) ? 5 : 4); /* for "false" or "true" */
1709 if (! NILP (family
))
1710 p
+= sprintf (p
, "%s", SDATA (family
));
1714 p
+= sprintf (p
, "%d", point_size
);
1716 p
+= sprintf (p
, "-%d", point_size
);
1718 else if (pixel_size
> 0)
1719 p
+= sprintf (p
, ":pixelsize=%d", pixel_size
);
1720 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
1721 p
+= sprintf (p
, ":foundry=%s",
1722 SDATA (SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
))));
1723 for (i
= 0; i
< 3; i
++)
1724 if (! NILP (styles
[i
]))
1725 p
+= sprintf (p
, ":%s=%s", style_names
[i
],
1726 SDATA (SYMBOL_NAME (styles
[i
])));
1727 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1728 p
+= sprintf (p
, ":dpi=%ld", (long) XINT (AREF (font
, FONT_DPI_INDEX
)));
1729 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1730 p
+= sprintf (p
, ":spacing=%ld",
1731 (long) XINT (AREF (font
, FONT_SPACING_INDEX
)));
1732 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1734 if (XINT (AREF (font
, FONT_AVGWIDTH_INDEX
)) == 0)
1735 p
+= sprintf (p
, ":scalable=true");
1737 p
+= sprintf (p
, ":scalable=false");
1742 /* Store GTK-style font name of FONT (font-spec or font-entity) in
1743 NAME (NBYTES length), and return the name length. F is the frame
1744 on which the font is displayed; it is used to calculate the point
1748 font_unparse_gtkname (font
, f
, name
, nbytes
)
1756 Lisp_Object family
, weight
, slant
, size
;
1757 int point_size
= -1;
1759 family
= AREF (font
, FONT_FAMILY_INDEX
);
1760 if (! NILP (family
))
1762 if (! SYMBOLP (family
))
1764 family
= SYMBOL_NAME (family
);
1765 len
+= SBYTES (family
);
1768 weight
= font_style_symbolic (font
, FONT_WEIGHT_INDEX
, 0);
1769 if (EQ (weight
, Qnormal
))
1771 else if (! NILP (weight
))
1773 weight
= SYMBOL_NAME (weight
);
1774 len
+= SBYTES (weight
);
1777 slant
= font_style_symbolic (font
, FONT_SLANT_INDEX
, 0);
1778 if (EQ (slant
, Qnormal
))
1780 else if (! NILP (slant
))
1782 slant
= SYMBOL_NAME (slant
);
1783 len
+= SBYTES (slant
);
1786 size
= AREF (font
, FONT_SIZE_INDEX
);
1787 /* Convert pixel size to point size. */
1788 if (INTEGERP (size
))
1790 Lisp_Object font_dpi
= AREF (font
, FONT_DPI_INDEX
);
1792 if (INTEGERP (font_dpi
))
1793 dpi
= XINT (font_dpi
);
1796 point_size
= PIXEL_TO_POINT (XINT (size
), dpi
);
1799 else if (FLOATP (size
))
1801 point_size
= (int) XFLOAT_DATA (size
);
1808 p
= name
+ sprintf (name
, "%s", SDATA (family
));
1810 if (! NILP (weight
))
1813 p
+= sprintf (p
, " %s", SDATA (weight
));
1814 q
[1] = toupper (q
[1]);
1820 p
+= sprintf (p
, " %s", SDATA (slant
));
1821 q
[1] = toupper (q
[1]);
1825 p
+= sprintf (p
, " %d", point_size
);
1830 /* Parse NAME (null terminated) and store information in FONT
1831 (font-spec or font-entity). If NAME is successfully parsed, return
1832 0. Otherwise return -1. */
1835 font_parse_name (name
, font
)
1839 if (name
[0] == '-' || index (name
, '*') || index (name
, '?'))
1840 return font_parse_xlfd (name
, font
);
1841 return font_parse_fcname (name
, font
);
1845 /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form
1846 "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding
1850 font_parse_family_registry (family
, registry
, font_spec
)
1851 Lisp_Object family
, registry
, font_spec
;
1857 && NILP (AREF (font_spec
, FONT_FAMILY_INDEX
)))
1859 CHECK_STRING (family
);
1860 len
= SBYTES (family
);
1861 p0
= (char *) SDATA (family
);
1862 p1
= index (p0
, '-');
1865 if ((*p0
!= '*' && p1
- p0
> 0)
1866 && NILP (AREF (font_spec
, FONT_FOUNDRY_INDEX
)))
1867 Ffont_put (font_spec
, QCfoundry
, font_intern_prop (p0
, p1
- p0
, 1));
1870 Ffont_put (font_spec
, QCfamily
, font_intern_prop (p1
, len
, 1));
1873 ASET (font_spec
, FONT_FAMILY_INDEX
, Fintern (family
, Qnil
));
1875 if (! NILP (registry
))
1877 /* Convert "XXX" and "XXX*" to "XXX*-*". */
1878 CHECK_STRING (registry
);
1879 len
= SBYTES (registry
);
1880 p0
= (char *) SDATA (registry
);
1881 p1
= index (p0
, '-');
1884 if (SDATA (registry
)[len
- 1] == '*')
1885 registry
= concat2 (registry
, build_string ("-*"));
1887 registry
= concat2 (registry
, build_string ("*-*"));
1889 registry
= Fdowncase (registry
);
1890 ASET (font_spec
, FONT_REGISTRY_INDEX
, Fintern (registry
, Qnil
));
1895 /* This part (through the next ^L) is still experimental and not
1896 tested much. We may drastically change codes. */
1902 #define LGSTRING_HEADER_SIZE 6
1903 #define LGSTRING_GLYPH_SIZE 8
1906 check_gstring (gstring
)
1907 Lisp_Object gstring
;
1912 CHECK_VECTOR (gstring
);
1913 val
= AREF (gstring
, 0);
1915 if (ASIZE (val
) < LGSTRING_HEADER_SIZE
)
1917 CHECK_FONT_OBJECT (LGSTRING_FONT (gstring
));
1918 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
)))
1919 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
));
1920 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
)))
1921 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
));
1922 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
)))
1923 CHECK_NATNUM (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
));
1924 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1925 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1926 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1927 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1929 for (i
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
1931 val
= LGSTRING_GLYPH (gstring
, i
);
1933 if (ASIZE (val
) < LGSTRING_GLYPH_SIZE
)
1935 if (NILP (AREF (val
, LGLYPH_IX_CHAR
)))
1937 CHECK_NATNUM (AREF (val
, LGLYPH_IX_FROM
));
1938 CHECK_NATNUM (AREF (val
, LGLYPH_IX_TO
));
1939 CHECK_CHARACTER (AREF (val
, LGLYPH_IX_CHAR
));
1940 if (!NILP (AREF (val
, LGLYPH_IX_CODE
)))
1941 CHECK_NATNUM (AREF (val
, LGLYPH_IX_CODE
));
1942 if (!NILP (AREF (val
, LGLYPH_IX_WIDTH
)))
1943 CHECK_NATNUM (AREF (val
, LGLYPH_IX_WIDTH
));
1944 if (!NILP (AREF (val
, LGLYPH_IX_ADJUSTMENT
)))
1946 val
= AREF (val
, LGLYPH_IX_ADJUSTMENT
);
1948 if (ASIZE (val
) < 3)
1950 for (j
= 0; j
< 3; j
++)
1951 CHECK_NUMBER (AREF (val
, j
));
1956 error ("Invalid glyph-string format");
1961 check_otf_features (otf_features
)
1962 Lisp_Object otf_features
;
1966 CHECK_CONS (otf_features
);
1967 CHECK_SYMBOL (XCAR (otf_features
));
1968 otf_features
= XCDR (otf_features
);
1969 CHECK_CONS (otf_features
);
1970 CHECK_SYMBOL (XCAR (otf_features
));
1971 otf_features
= XCDR (otf_features
);
1972 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1974 CHECK_SYMBOL (Fcar (val
));
1975 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1976 error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val
)));
1978 otf_features
= XCDR (otf_features
);
1979 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1981 CHECK_SYMBOL (Fcar (val
));
1982 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1983 error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val
)));
1990 Lisp_Object otf_list
;
1993 otf_tag_symbol (tag
)
1998 OTF_tag_name (tag
, name
);
1999 return Fintern (make_unibyte_string (name
, 4), Qnil
);
2006 Lisp_Object val
= Fassoc (file
, otf_list
);
2010 otf
= XSAVE_VALUE (XCDR (val
))->pointer
;
2013 otf
= STRINGP (file
) ? OTF_open ((char *) SDATA (file
)) : NULL
;
2014 val
= make_save_value (otf
, 0);
2015 otf_list
= Fcons (Fcons (file
, val
), otf_list
);
2021 /* Return a list describing which scripts/languages FONT supports by
2022 which GSUB/GPOS features of OpenType tables. See the comment of
2023 (struct font_driver).otf_capability. */
2026 font_otf_capability (font
)
2030 Lisp_Object capability
= Fcons (Qnil
, Qnil
);
2033 otf
= otf_open (font
->props
[FONT_FILE_INDEX
]);
2036 for (i
= 0; i
< 2; i
++)
2038 OTF_GSUB_GPOS
*gsub_gpos
;
2039 Lisp_Object script_list
= Qnil
;
2042 if (OTF_get_features (otf
, i
== 0) < 0)
2044 gsub_gpos
= i
== 0 ? otf
->gsub
: otf
->gpos
;
2045 for (j
= gsub_gpos
->ScriptList
.ScriptCount
- 1; j
>= 0; j
--)
2047 OTF_Script
*script
= gsub_gpos
->ScriptList
.Script
+ j
;
2048 Lisp_Object langsys_list
= Qnil
;
2049 Lisp_Object script_tag
= otf_tag_symbol (script
->ScriptTag
);
2052 for (k
= script
->LangSysCount
; k
>= 0; k
--)
2054 OTF_LangSys
*langsys
;
2055 Lisp_Object feature_list
= Qnil
;
2056 Lisp_Object langsys_tag
;
2059 if (k
== script
->LangSysCount
)
2061 langsys
= &script
->DefaultLangSys
;
2066 langsys
= script
->LangSys
+ k
;
2068 = otf_tag_symbol (script
->LangSysRecord
[k
].LangSysTag
);
2070 for (l
= langsys
->FeatureCount
- 1; l
>= 0; l
--)
2072 OTF_Feature
*feature
2073 = gsub_gpos
->FeatureList
.Feature
+ langsys
->FeatureIndex
[l
];
2074 Lisp_Object feature_tag
2075 = otf_tag_symbol (feature
->FeatureTag
);
2077 feature_list
= Fcons (feature_tag
, feature_list
);
2079 langsys_list
= Fcons (Fcons (langsys_tag
, feature_list
),
2082 script_list
= Fcons (Fcons (script_tag
, langsys_list
),
2087 XSETCAR (capability
, script_list
);
2089 XSETCDR (capability
, script_list
);
2095 /* Parse OTF features in SPEC and write a proper features spec string
2096 in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is
2097 assured that the sufficient memory has already allocated for
2101 generate_otf_features (spec
, features
)
2111 for (asterisk
= 0; CONSP (spec
); spec
= XCDR (spec
))
2117 if (SREF (SYMBOL_NAME (val
), 0) == '*')
2122 else if (! asterisk
)
2124 val
= SYMBOL_NAME (val
);
2125 p
+= sprintf (p
, "%s", SDATA (val
));
2129 val
= SYMBOL_NAME (val
);
2130 p
+= sprintf (p
, "~%s", SDATA (val
));
2134 error ("OTF spec too long");
2138 font_otf_DeviceTable (device_table
)
2139 OTF_DeviceTable
*device_table
;
2141 int len
= device_table
->StartSize
- device_table
->EndSize
+ 1;
2143 return Fcons (make_number (len
),
2144 make_unibyte_string (device_table
->DeltaValue
, len
));
2148 font_otf_ValueRecord (value_format
, value_record
)
2150 OTF_ValueRecord
*value_record
;
2152 Lisp_Object val
= Fmake_vector (make_number (8), Qnil
);
2154 if (value_format
& OTF_XPlacement
)
2155 ASET (val
, 0, make_number (value_record
->XPlacement
));
2156 if (value_format
& OTF_YPlacement
)
2157 ASET (val
, 1, make_number (value_record
->YPlacement
));
2158 if (value_format
& OTF_XAdvance
)
2159 ASET (val
, 2, make_number (value_record
->XAdvance
));
2160 if (value_format
& OTF_YAdvance
)
2161 ASET (val
, 3, make_number (value_record
->YAdvance
));
2162 if (value_format
& OTF_XPlaDevice
)
2163 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XPlaDevice
));
2164 if (value_format
& OTF_YPlaDevice
)
2165 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YPlaDevice
));
2166 if (value_format
& OTF_XAdvDevice
)
2167 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XAdvDevice
));
2168 if (value_format
& OTF_YAdvDevice
)
2169 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YAdvDevice
));
2174 font_otf_Anchor (anchor
)
2179 val
= Fmake_vector (make_number (anchor
->AnchorFormat
+ 1), Qnil
);
2180 ASET (val
, 0, make_number (anchor
->XCoordinate
));
2181 ASET (val
, 1, make_number (anchor
->YCoordinate
));
2182 if (anchor
->AnchorFormat
== 2)
2183 ASET (val
, 2, make_number (anchor
->f
.f1
.AnchorPoint
));
2186 ASET (val
, 3, font_otf_DeviceTable (&anchor
->f
.f2
.XDeviceTable
));
2187 ASET (val
, 4, font_otf_DeviceTable (&anchor
->f
.f2
.YDeviceTable
));
2191 #endif /* HAVE_LIBOTF */
2197 static unsigned font_score
P_ ((Lisp_Object
, Lisp_Object
*));
2198 static int font_compare
P_ ((const void *, const void *));
2199 static Lisp_Object font_sort_entities
P_ ((Lisp_Object
, Lisp_Object
,
2202 /* Return a rescaling ratio of FONT_ENTITY. */
2203 extern Lisp_Object Vface_font_rescale_alist
;
2206 font_rescale_ratio (font_entity
)
2207 Lisp_Object font_entity
;
2209 Lisp_Object tail
, elt
;
2210 Lisp_Object name
= Qnil
;
2212 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2215 if (FLOATP (XCDR (elt
)))
2217 if (STRINGP (XCAR (elt
)))
2220 name
= Ffont_xlfd_name (font_entity
, Qnil
);
2221 if (fast_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2222 return XFLOAT_DATA (XCDR (elt
));
2224 else if (FONT_SPEC_P (XCAR (elt
)))
2226 if (font_match_p (XCAR (elt
), font_entity
))
2227 return XFLOAT_DATA (XCDR (elt
));
2234 /* We sort fonts by scoring each of them against a specified
2235 font-spec. The score value is 32 bit (`unsigned'), and the smaller
2236 the value is, the closer the font is to the font-spec.
2238 The lowest 2 bits of the score is used for driver type. The font
2239 available by the most preferred font driver is 0.
2241 Each 7-bit in the higher 28 bits are used for numeric properties
2242 WEIGHT, SLANT, WIDTH, and SIZE. */
2244 /* How many bits to shift to store the difference value of each font
2245 property in a score. Note that flots for FONT_TYPE_INDEX and
2246 FONT_REGISTRY_INDEX are not used. */
2247 static int sort_shift_bits
[FONT_SIZE_INDEX
+ 1];
2249 /* Score font-entity ENTITY against properties of font-spec SPEC_PROP.
2250 The return value indicates how different ENTITY is compared with
2254 font_score (entity
, spec_prop
)
2255 Lisp_Object entity
, *spec_prop
;
2260 /* Score three style numeric fields. Maximum difference is 127. */
2261 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
; i
++)
2262 if (! NILP (spec_prop
[i
]) && ! EQ (AREF (entity
, i
), spec_prop
[i
]))
2264 int diff
= (XINT (AREF (entity
, i
)) >> 8) - (XINT (spec_prop
[i
]) >> 8);
2269 score
|= min (diff
, 127) << sort_shift_bits
[i
];
2272 /* Score the size. Maximum difference is 127. */
2273 i
= FONT_SIZE_INDEX
;
2274 if (! NILP (spec_prop
[FONT_SIZE_INDEX
])
2275 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2277 /* We use the higher 6-bit for the actual size difference. The
2278 lowest bit is set if the DPI is different. */
2280 int pixel_size
= XINT (spec_prop
[FONT_SIZE_INDEX
]);
2282 if (CONSP (Vface_font_rescale_alist
))
2283 pixel_size
*= font_rescale_ratio (entity
);
2284 diff
= pixel_size
- XINT (AREF (entity
, FONT_SIZE_INDEX
));
2288 if (! NILP (spec_prop
[FONT_DPI_INDEX
])
2289 && ! EQ (spec_prop
[FONT_DPI_INDEX
], AREF (entity
, FONT_DPI_INDEX
)))
2291 if (! NILP (spec_prop
[FONT_AVGWIDTH_INDEX
])
2292 && ! EQ (spec_prop
[FONT_AVGWIDTH_INDEX
], AREF (entity
, FONT_AVGWIDTH_INDEX
)))
2294 score
|= min (diff
, 127) << sort_shift_bits
[FONT_SIZE_INDEX
];
2301 /* Concatenate all elements of LIST into one vector. LIST is a list
2302 of font-entity vectors. */
2305 font_vconcat_entity_vectors (Lisp_Object list
)
2307 int nargs
= XINT (Flength (list
));
2308 Lisp_Object
*args
= alloca (sizeof (Lisp_Object
) * nargs
);
2311 for (i
= 0; i
< nargs
; i
++, list
= XCDR (list
))
2312 args
[i
] = XCAR (list
);
2313 return Fvconcat (nargs
, args
);
2317 /* The structure for elements being sorted by qsort. */
2318 struct font_sort_data
2321 int font_driver_preference
;
2326 /* The comparison function for qsort. */
2329 font_compare (d1
, d2
)
2330 const void *d1
, *d2
;
2332 const struct font_sort_data
*data1
= d1
;
2333 const struct font_sort_data
*data2
= d2
;
2335 if (data1
->score
< data2
->score
)
2337 else if (data1
->score
> data2
->score
)
2339 return (data1
->font_driver_preference
- data2
->font_driver_preference
);
2343 /* Sort each font-entity vector in LIST by closeness to font-spec PREFER.
2344 If PREFER specifies a point-size, calculate the corresponding
2345 pixel-size from QCdpi property of PREFER or from the Y-resolution
2346 of FRAME before sorting.
2348 If BEST-ONLY is nonzero, return the best matching entity (that
2349 supports the character BEST-ONLY if BEST-ONLY is positive, or any
2350 if BEST-ONLY is negative). Otherwise, return the sorted result as
2351 a single vector of font-entities.
2353 This function does no optimization for the case that the total
2354 number of elements is 1. The caller should avoid calling this in
2358 font_sort_entities (list
, prefer
, frame
, best_only
)
2359 Lisp_Object list
, prefer
, frame
;
2362 Lisp_Object prefer_prop
[FONT_SPEC_MAX
];
2364 struct font_sort_data
*data
;
2365 unsigned best_score
;
2366 Lisp_Object best_entity
;
2367 struct frame
*f
= XFRAME (frame
);
2368 Lisp_Object tail
, vec
;
2371 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_AVGWIDTH_INDEX
; i
++)
2372 prefer_prop
[i
] = AREF (prefer
, i
);
2373 if (FLOATP (prefer_prop
[FONT_SIZE_INDEX
]))
2374 prefer_prop
[FONT_SIZE_INDEX
]
2375 = make_number (font_pixel_size (XFRAME (frame
), prefer
));
2377 if (NILP (XCDR (list
)))
2379 /* What we have to take care of is this single vector. */
2381 maxlen
= ASIZE (vec
);
2385 /* We don't have to perform sort, so there's no need of creating
2386 a single vector. But, we must find the length of the longest
2389 for (tail
= list
; CONSP (tail
); tail
= XCDR (tail
))
2390 if (maxlen
< ASIZE (XCAR (tail
)))
2391 maxlen
= ASIZE (XCAR (tail
));
2395 /* We have to create a single vector to sort it. */
2396 vec
= font_vconcat_entity_vectors (list
);
2397 maxlen
= ASIZE (vec
);
2400 SAFE_ALLOCA (data
, struct font_sort_data
*, (sizeof *data
) * maxlen
);
2401 best_score
= 0xFFFFFFFF;
2404 for (tail
= list
; CONSP (tail
); tail
= XCDR (tail
))
2406 int font_driver_preference
= 0;
2407 Lisp_Object current_font_driver
;
2413 /* We are sure that the length of VEC > 0. */
2414 current_font_driver
= AREF (AREF (vec
, 0), FONT_TYPE_INDEX
);
2415 /* Score the elements. */
2416 for (i
= 0; i
< len
; i
++)
2418 data
[i
].entity
= AREF (vec
, i
);
2420 = ((best_only
<= 0 || font_has_char (f
, data
[i
].entity
, best_only
)
2422 ? font_score (data
[i
].entity
, prefer_prop
)
2424 if (best_only
&& best_score
> data
[i
].score
)
2426 best_score
= data
[i
].score
;
2427 best_entity
= data
[i
].entity
;
2428 if (best_score
== 0)
2431 if (! EQ (current_font_driver
, AREF (AREF (vec
, i
), FONT_TYPE_INDEX
)))
2433 current_font_driver
= AREF (AREF (vec
, i
), FONT_TYPE_INDEX
);
2434 font_driver_preference
++;
2436 data
[i
].font_driver_preference
= font_driver_preference
;
2439 /* Sort if necessary. */
2442 qsort (data
, len
, sizeof *data
, font_compare
);
2443 for (i
= 0; i
< len
; i
++)
2444 ASET (vec
, i
, data
[i
].entity
);
2453 FONT_ADD_LOG ("sort-by", prefer
, vec
);
2458 /* API of Font Service Layer. */
2460 /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to
2461 sort_shift_bits. Finternal_set_font_selection_order calls this
2462 function with font_sort_order after setting up it. */
2465 font_update_sort_order (order
)
2470 for (i
= 0, shift_bits
= 23; i
< 4; i
++, shift_bits
-= 7)
2472 int xlfd_idx
= order
[i
];
2474 if (xlfd_idx
== XLFD_WEIGHT_INDEX
)
2475 sort_shift_bits
[FONT_WEIGHT_INDEX
] = shift_bits
;
2476 else if (xlfd_idx
== XLFD_SLANT_INDEX
)
2477 sort_shift_bits
[FONT_SLANT_INDEX
] = shift_bits
;
2478 else if (xlfd_idx
== XLFD_SWIDTH_INDEX
)
2479 sort_shift_bits
[FONT_WIDTH_INDEX
] = shift_bits
;
2481 sort_shift_bits
[FONT_SIZE_INDEX
] = shift_bits
;
2486 font_check_otf_features (script
, langsys
, features
, table
)
2487 Lisp_Object script
, langsys
, features
, table
;
2492 table
= assq_no_quit (script
, table
);
2495 table
= XCDR (table
);
2496 if (! NILP (langsys
))
2498 table
= assq_no_quit (langsys
, table
);
2504 val
= assq_no_quit (Qnil
, table
);
2506 table
= XCAR (table
);
2510 table
= XCDR (table
);
2511 for (negative
= 0; CONSP (features
); features
= XCDR (features
))
2513 if (NILP (XCAR (features
)))
2518 if (NILP (Fmemq (XCAR (features
), table
)) != negative
)
2524 /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */
2527 font_check_otf (Lisp_Object spec
, Lisp_Object otf_capability
)
2529 Lisp_Object script
, langsys
= Qnil
, gsub
= Qnil
, gpos
= Qnil
;
2531 script
= XCAR (spec
);
2535 langsys
= XCAR (spec
);
2546 if (! NILP (gsub
) && ! font_check_otf_features (script
, langsys
, gsub
,
2547 XCAR (otf_capability
)))
2549 if (! NILP (gpos
) && ! font_check_otf_features (script
, langsys
, gpos
,
2550 XCDR (otf_capability
)))
2557 /* Check if FONT (font-entity or font-object) matches with the font
2558 specification SPEC. */
2561 font_match_p (spec
, font
)
2562 Lisp_Object spec
, font
;
2564 Lisp_Object prop
[FONT_SPEC_MAX
], *props
;
2565 Lisp_Object extra
, font_extra
;
2568 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2569 if (! NILP (AREF (spec
, i
))
2570 && ! NILP (AREF (font
, i
))
2571 && ! EQ (AREF (spec
, i
), AREF (font
, i
)))
2573 props
= XFONT_SPEC (spec
)->props
;
2574 if (FLOATP (props
[FONT_SIZE_INDEX
]))
2576 for (i
= FONT_FOUNDRY_INDEX
; i
< FONT_SIZE_INDEX
; i
++)
2577 prop
[i
] = AREF (spec
, i
);
2578 prop
[FONT_SIZE_INDEX
]
2579 = make_number (font_pixel_size (XFRAME (selected_frame
), spec
));
2583 if (font_score (font
, props
) > 0)
2585 extra
= AREF (spec
, FONT_EXTRA_INDEX
);
2586 font_extra
= AREF (font
, FONT_EXTRA_INDEX
);
2587 for (; CONSP (extra
); extra
= XCDR (extra
))
2589 Lisp_Object key
= XCAR (XCAR (extra
));
2590 Lisp_Object val
= XCDR (XCAR (extra
)), val2
;
2592 if (EQ (key
, QClang
))
2594 val2
= assq_no_quit (key
, font_extra
);
2603 if (NILP (Fmemq (val
, val2
)))
2608 ? NILP (Fmemq (val
, XCDR (val2
)))
2612 else if (EQ (key
, QCscript
))
2614 val2
= assq_no_quit (val
, Vscript_representative_chars
);
2620 /* All characters in the list must be supported. */
2621 for (; CONSP (val2
); val2
= XCDR (val2
))
2623 if (! NATNUMP (XCAR (val2
)))
2625 if (font_encode_char (font
, XFASTINT (XCAR (val2
)))
2626 == FONT_INVALID_CODE
)
2630 else if (VECTORP (val2
))
2632 /* At most one character in the vector must be supported. */
2633 for (i
= 0; i
< ASIZE (val2
); i
++)
2635 if (! NATNUMP (AREF (val2
, i
)))
2637 if (font_encode_char (font
, XFASTINT (AREF (val2
, i
)))
2638 != FONT_INVALID_CODE
)
2641 if (i
== ASIZE (val2
))
2646 else if (EQ (key
, QCotf
))
2650 if (! FONT_OBJECT_P (font
))
2652 fontp
= XFONT_OBJECT (font
);
2653 if (! fontp
->driver
->otf_capability
)
2655 val2
= fontp
->driver
->otf_capability (fontp
);
2656 if (NILP (val2
) || ! font_check_otf (val
, val2
))
2667 Each font backend has the callback function get_cache, and it
2668 returns a cons cell of which cdr part can be freely used for
2669 caching fonts. The cons cell may be shared by multiple frames
2670 and/or multiple font drivers. So, we arrange the cdr part as this:
2672 ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...)
2674 where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES
2675 is a number frames sharing this cache, and FONT-CACHE-DATA is a
2676 cons (FONT-SPEC FONT-ENTITY ...). */
2678 static void font_prepare_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2679 static void font_finish_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2680 static Lisp_Object font_get_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2681 static void font_clear_cache
P_ ((FRAME_PTR
, Lisp_Object
,
2682 struct font_driver
*));
2685 font_prepare_cache (f
, driver
)
2687 struct font_driver
*driver
;
2689 Lisp_Object cache
, val
;
2691 cache
= driver
->get_cache (f
);
2693 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2697 val
= Fcons (driver
->type
, Fcons (make_number (1), Qnil
));
2698 XSETCDR (cache
, Fcons (val
, XCDR (cache
)));
2702 val
= XCDR (XCAR (val
));
2703 XSETCAR (val
, make_number (XINT (XCAR (val
)) + 1));
2709 font_finish_cache (f
, driver
)
2711 struct font_driver
*driver
;
2713 Lisp_Object cache
, val
, tmp
;
2716 cache
= driver
->get_cache (f
);
2718 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2719 cache
= val
, val
= XCDR (val
);
2720 font_assert (! NILP (val
));
2721 tmp
= XCDR (XCAR (val
));
2722 XSETCAR (tmp
, make_number (XINT (XCAR (tmp
)) - 1));
2723 if (XINT (XCAR (tmp
)) == 0)
2725 font_clear_cache (f
, XCAR (val
), driver
);
2726 XSETCDR (cache
, XCDR (val
));
2732 font_get_cache (f
, driver
)
2734 struct font_driver
*driver
;
2736 Lisp_Object val
= driver
->get_cache (f
);
2737 Lisp_Object type
= driver
->type
;
2739 font_assert (CONSP (val
));
2740 for (val
= XCDR (val
); ! EQ (XCAR (XCAR (val
)), type
); val
= XCDR (val
));
2741 font_assert (CONSP (val
));
2742 /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */
2743 val
= XCDR (XCAR (val
));
2747 static int num_fonts
;
2750 font_clear_cache (f
, cache
, driver
)
2753 struct font_driver
*driver
;
2755 Lisp_Object tail
, elt
;
2756 Lisp_Object tail2
, entity
;
2758 /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */
2759 for (tail
= XCDR (XCDR (cache
)); CONSP (tail
); tail
= XCDR (tail
))
2762 /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */
2763 if (CONSP (elt
) && FONT_SPEC_P (XCAR (elt
)))
2765 for (tail2
= XCDR (elt
); CONSP (tail2
); tail2
= XCDR (tail2
))
2767 entity
= XCAR (tail2
);
2769 if (FONT_ENTITY_P (entity
)
2770 && EQ (driver
->type
, AREF (entity
, FONT_TYPE_INDEX
)))
2772 Lisp_Object objlist
= AREF (entity
, FONT_OBJLIST_INDEX
);
2774 for (; CONSP (objlist
); objlist
= XCDR (objlist
))
2776 Lisp_Object val
= XCAR (objlist
);
2777 struct font
*font
= XFONT_OBJECT (val
);
2779 if (! NILP (AREF (val
, FONT_TYPE_INDEX
)))
2781 font_assert (font
&& driver
== font
->driver
);
2782 driver
->close (f
, font
);
2786 if (driver
->free_entity
)
2787 driver
->free_entity (entity
);
2792 XSETCDR (cache
, Qnil
);
2796 static Lisp_Object scratch_font_spec
, scratch_font_prefer
;
2799 font_delete_unmatched (vec
, spec
, size
)
2800 Lisp_Object vec
, spec
;
2803 Lisp_Object entity
, val
;
2804 enum font_property_index prop
;
2807 for (val
= Qnil
, i
= ASIZE (vec
) - 1; i
>= 0; i
--)
2809 entity
= AREF (vec
, i
);
2810 for (prop
= FONT_WEIGHT_INDEX
; prop
< FONT_SIZE_INDEX
; prop
++)
2811 if (INTEGERP (AREF (spec
, prop
))
2812 && ((XINT (AREF (spec
, prop
)) >> 8)
2813 != (XINT (AREF (entity
, prop
)) >> 8)))
2814 prop
= FONT_SPEC_MAX
;
2815 if (prop
< FONT_SPEC_MAX
2817 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2819 int diff
= XINT (AREF (entity
, FONT_SIZE_INDEX
)) - size
;
2822 && (diff
< 0 ? -diff
> FONT_PIXEL_SIZE_QUANTUM
2823 : diff
> FONT_PIXEL_SIZE_QUANTUM
))
2824 prop
= FONT_SPEC_MAX
;
2826 if (prop
< FONT_SPEC_MAX
2827 && INTEGERP (AREF (spec
, FONT_DPI_INDEX
))
2828 && INTEGERP (AREF (entity
, FONT_DPI_INDEX
))
2829 && XINT (AREF (entity
, FONT_DPI_INDEX
)) != 0
2830 && ! EQ (AREF (spec
, FONT_DPI_INDEX
), AREF (entity
, FONT_DPI_INDEX
)))
2831 prop
= FONT_SPEC_MAX
;
2832 if (prop
< FONT_SPEC_MAX
2833 && INTEGERP (AREF (spec
, FONT_AVGWIDTH_INDEX
))
2834 && INTEGERP (AREF (entity
, FONT_AVGWIDTH_INDEX
))
2835 && XINT (AREF (entity
, FONT_AVGWIDTH_INDEX
)) != 0
2836 && ! EQ (AREF (spec
, FONT_AVGWIDTH_INDEX
),
2837 AREF (entity
, FONT_AVGWIDTH_INDEX
)))
2838 prop
= FONT_SPEC_MAX
;
2839 if (prop
< FONT_SPEC_MAX
)
2840 val
= Fcons (entity
, val
);
2842 return (Fvconcat (1, &val
));
2846 /* Return a list of vectors of font-entities matching with SPEC on
2847 FRAME. Each elements in the list is a vector of entities from the
2848 same font-driver. */
2851 font_list_entities (frame
, spec
)
2852 Lisp_Object frame
, spec
;
2854 FRAME_PTR f
= XFRAME (frame
);
2855 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2856 Lisp_Object ftype
, val
;
2857 Lisp_Object list
= Qnil
;
2859 int need_filtering
= 0;
2862 font_assert (FONT_SPEC_P (spec
));
2864 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
2865 size
= XINT (AREF (spec
, FONT_SIZE_INDEX
));
2866 else if (FLOATP (AREF (spec
, FONT_SIZE_INDEX
)))
2867 size
= font_pixel_size (f
, spec
);
2871 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2872 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2873 ASET (scratch_font_spec
, i
, AREF (spec
, i
));
2874 for (i
= FONT_WEIGHT_INDEX
; i
< FONT_EXTRA_INDEX
; i
++)
2876 ASET (scratch_font_spec
, i
, Qnil
);
2877 if (! NILP (AREF (spec
, i
)))
2879 if (i
== FONT_DPI_INDEX
)
2880 /* Skip FONT_SPACING_INDEX */
2883 ASET (scratch_font_spec
, FONT_SPACING_INDEX
, AREF (spec
, FONT_SPACING_INDEX
));
2884 ASET (scratch_font_spec
, FONT_EXTRA_INDEX
, AREF (spec
, FONT_EXTRA_INDEX
));
2886 for (i
= 0; driver_list
; driver_list
= driver_list
->next
)
2888 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2890 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2892 ASET (scratch_font_spec
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2893 val
= assoc_no_quit (scratch_font_spec
, XCDR (cache
));
2900 val
= driver_list
->driver
->list (frame
, scratch_font_spec
);
2904 val
= Fvconcat (1, &val
);
2905 copy
= Fcopy_font_spec (scratch_font_spec
);
2906 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2907 XSETCDR (cache
, Fcons (Fcons (copy
, val
), XCDR (cache
)));
2909 if (ASIZE (val
) > 0 && need_filtering
)
2910 val
= font_delete_unmatched (val
, spec
, size
);
2911 if (ASIZE (val
) > 0)
2912 list
= Fcons (val
, list
);
2915 list
= Fnreverse (list
);
2916 FONT_ADD_LOG ("list", spec
, list
);
2921 /* Return a font entity matching with SPEC on FRAME. ATTRS, if non
2922 nil, is an array of face's attributes, which specifies preferred
2923 font-related attributes. */
2926 font_matching_entity (f
, attrs
, spec
)
2928 Lisp_Object
*attrs
, spec
;
2930 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2931 Lisp_Object ftype
, size
, entity
;
2933 Lisp_Object work
= Fcopy_font_spec (spec
);
2935 XSETFRAME (frame
, f
);
2936 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2937 size
= AREF (spec
, FONT_SIZE_INDEX
);
2940 ASET (work
, FONT_SIZE_INDEX
, make_number (font_pixel_size (f
, spec
)));
2941 FONT_SET_STYLE (work
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
2942 FONT_SET_STYLE (work
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
2943 FONT_SET_STYLE (work
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
2946 for (; driver_list
; driver_list
= driver_list
->next
)
2948 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2950 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2953 ASET (work
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2954 entity
= assoc_no_quit (work
, XCDR (cache
));
2956 entity
= XCDR (entity
);
2959 entity
= driver_list
->driver
->match (frame
, work
);
2960 copy
= Fcopy_font_spec (work
);
2961 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2962 XSETCDR (cache
, Fcons (Fcons (copy
, entity
), XCDR (cache
)));
2964 if (! NILP (entity
))
2967 FONT_ADD_LOG ("match", work
, entity
);
2972 /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the
2973 opened font object. */
2976 font_open_entity (f
, entity
, pixel_size
)
2981 struct font_driver_list
*driver_list
;
2982 Lisp_Object objlist
, size
, val
, font_object
;
2984 int min_width
, height
;
2985 int scaled_pixel_size
;
2987 font_assert (FONT_ENTITY_P (entity
));
2988 size
= AREF (entity
, FONT_SIZE_INDEX
);
2989 if (XINT (size
) != 0)
2990 scaled_pixel_size
= pixel_size
= XINT (size
);
2991 else if (CONSP (Vface_font_rescale_alist
))
2992 scaled_pixel_size
= pixel_size
* font_rescale_ratio (entity
);
2995 /* This doesn't work if you have changed hinting or any other parameter.
2996 We need to make a new object in every case to be sure. */
2997 for (objlist
= AREF (entity
, FONT_OBJLIST_INDEX
); CONSP (objlist
);
2998 objlist
= XCDR (objlist
))
2999 if (! NILP (AREF (XCAR (objlist
), FONT_TYPE_INDEX
))
3000 && XFONT_OBJECT (XCAR (objlist
))->pixel_size
== pixel_size
)
3001 return XCAR (objlist
);
3004 val
= AREF (entity
, FONT_TYPE_INDEX
);
3005 for (driver_list
= f
->font_driver_list
;
3006 driver_list
&& ! EQ (driver_list
->driver
->type
, val
);
3007 driver_list
= driver_list
->next
);
3011 font_object
= driver_list
->driver
->open (f
, entity
, scaled_pixel_size
);
3012 if (!NILP (font_object
))
3013 ASET (font_object
, FONT_SIZE_INDEX
, make_number (pixel_size
));
3014 FONT_ADD_LOG ("open", entity
, font_object
);
3015 if (NILP (font_object
))
3017 ASET (entity
, FONT_OBJLIST_INDEX
,
3018 Fcons (font_object
, AREF (entity
, FONT_OBJLIST_INDEX
)));
3019 ASET (font_object
, FONT_OBJLIST_INDEX
, Qnil
);
3022 font
= XFONT_OBJECT (font_object
);
3023 min_width
= (font
->min_width
? font
->min_width
3024 : font
->average_width
? font
->average_width
3025 : font
->space_width
? font
->space_width
3027 height
= (font
->height
? font
->height
: 1);
3028 #ifdef HAVE_WINDOW_SYSTEM
3029 FRAME_X_DISPLAY_INFO (f
)->n_fonts
++;
3030 if (FRAME_X_DISPLAY_INFO (f
)->n_fonts
== 1)
3032 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
;
3033 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
;
3034 fonts_changed_p
= 1;
3038 if (FRAME_SMALLEST_CHAR_WIDTH (f
) > min_width
)
3039 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
, fonts_changed_p
= 1;
3040 if (FRAME_SMALLEST_FONT_HEIGHT (f
) > height
)
3041 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
, fonts_changed_p
= 1;
3049 /* Close FONT_OBJECT that is opened on frame F. */
3052 font_close_object (f
, font_object
)
3054 Lisp_Object font_object
;
3056 struct font
*font
= XFONT_OBJECT (font_object
);
3058 if (NILP (AREF (font_object
, FONT_TYPE_INDEX
)))
3059 /* Already closed. */
3061 FONT_ADD_LOG ("close", font_object
, Qnil
);
3062 font
->driver
->close (f
, font
);
3063 #ifdef HAVE_WINDOW_SYSTEM
3064 font_assert (FRAME_X_DISPLAY_INFO (f
)->n_fonts
);
3065 FRAME_X_DISPLAY_INFO (f
)->n_fonts
--;
3071 /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if
3072 FONT is a font-entity and it must be opened to check. */
3075 font_has_char (f
, font
, c
)
3082 if (FONT_ENTITY_P (font
))
3084 Lisp_Object type
= AREF (font
, FONT_TYPE_INDEX
);
3085 struct font_driver_list
*driver_list
;
3087 for (driver_list
= f
->font_driver_list
;
3088 driver_list
&& ! EQ (driver_list
->driver
->type
, type
);
3089 driver_list
= driver_list
->next
);
3092 if (! driver_list
->driver
->has_char
)
3094 return driver_list
->driver
->has_char (font
, c
);
3097 font_assert (FONT_OBJECT_P (font
));
3098 fontp
= XFONT_OBJECT (font
);
3099 if (fontp
->driver
->has_char
)
3101 int result
= fontp
->driver
->has_char (font
, c
);
3106 return (fontp
->driver
->encode_char (fontp
, c
) != FONT_INVALID_CODE
);
3110 /* Return the glyph ID of FONT_OBJECT for character C. */
3113 font_encode_char (font_object
, c
)
3114 Lisp_Object font_object
;
3119 font_assert (FONT_OBJECT_P (font_object
));
3120 font
= XFONT_OBJECT (font_object
);
3121 return font
->driver
->encode_char (font
, c
);
3125 /* Return the name of FONT_OBJECT. */
3128 font_get_name (font_object
)
3129 Lisp_Object font_object
;
3131 font_assert (FONT_OBJECT_P (font_object
));
3132 return AREF (font_object
, FONT_NAME_INDEX
);
3136 /* Return the specification of FONT_OBJECT. */
3139 font_get_spec (font_object
)
3140 Lisp_Object font_object
;
3142 Lisp_Object spec
= font_make_spec ();
3145 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
3146 ASET (spec
, i
, AREF (font_object
, i
));
3147 ASET (spec
, FONT_SIZE_INDEX
,
3148 make_number (XFONT_OBJECT (font_object
)->pixel_size
));
3153 /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME
3154 could not be parsed by font_parse_name, return Qnil. */
3157 font_spec_from_name (font_name
)
3158 Lisp_Object font_name
;
3160 Lisp_Object spec
= Ffont_spec (0, NULL
);
3162 CHECK_STRING (font_name
);
3163 if (font_parse_name ((char *) SDATA (font_name
), spec
) == -1)
3165 font_put_extra (spec
, QCname
, font_name
);
3166 font_put_extra (spec
, QCuser_spec
, font_name
);
3172 font_clear_prop (attrs
, prop
)
3174 enum font_property_index prop
;
3176 Lisp_Object font
= attrs
[LFACE_FONT_INDEX
];
3181 if (! NILP (Ffont_get (font
, QCname
)))
3183 font
= Fcopy_font_spec (font
);
3184 font_put_extra (font
, QCname
, Qnil
);
3187 if (NILP (AREF (font
, prop
))
3188 && prop
!= FONT_FAMILY_INDEX
3189 && prop
!= FONT_FOUNDRY_INDEX
3190 && prop
!= FONT_WIDTH_INDEX
3191 && prop
!= FONT_SIZE_INDEX
)
3193 if (EQ (font
, attrs
[LFACE_FONT_INDEX
]))
3194 font
= Fcopy_font_spec (font
);
3195 ASET (font
, prop
, Qnil
);
3196 if (prop
== FONT_FAMILY_INDEX
|| prop
== FONT_FOUNDRY_INDEX
)
3198 if (prop
== FONT_FAMILY_INDEX
)
3200 ASET (font
, FONT_FOUNDRY_INDEX
, Qnil
);
3201 /* If we are setting the font family, we must also clear
3202 FONT_WIDTH_INDEX to avoid rejecting families that lack
3203 support for some widths. */
3204 ASET (font
, FONT_WIDTH_INDEX
, Qnil
);
3206 ASET (font
, FONT_ADSTYLE_INDEX
, Qnil
);
3207 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
3208 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
3209 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3210 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3211 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3213 else if (prop
== FONT_SIZE_INDEX
)
3215 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3216 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3217 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3219 else if (prop
== FONT_WIDTH_INDEX
)
3220 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3221 attrs
[LFACE_FONT_INDEX
] = font
;
3225 font_update_lface (f
, attrs
)
3231 spec
= attrs
[LFACE_FONT_INDEX
];
3232 if (! FONT_SPEC_P (spec
))
3235 if (! NILP (AREF (spec
, FONT_FOUNDRY_INDEX
)))
3236 attrs
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (spec
, FONT_FOUNDRY_INDEX
));
3237 if (! NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3238 attrs
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (spec
, FONT_FAMILY_INDEX
));
3239 if (! NILP (AREF (spec
, FONT_WEIGHT_INDEX
)))
3240 attrs
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (spec
);
3241 if (! NILP (AREF (spec
, FONT_SLANT_INDEX
)))
3242 attrs
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (spec
);
3243 if (! NILP (AREF (spec
, FONT_WIDTH_INDEX
)))
3244 attrs
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (spec
);
3245 if (! NILP (AREF (spec
, FONT_SIZE_INDEX
)))
3249 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
3254 val
= Ffont_get (spec
, QCdpi
);
3257 point
= PIXEL_TO_POINT (XINT (AREF (spec
, FONT_SIZE_INDEX
)) * 10,
3259 attrs
[LFACE_HEIGHT_INDEX
] = make_number (point
);
3261 else if (FLOATP (AREF (spec
, FONT_SIZE_INDEX
)))
3263 point
= XFLOAT_DATA (AREF (spec
, FONT_SIZE_INDEX
)) * 10;
3264 attrs
[LFACE_HEIGHT_INDEX
] = make_number (point
);
3270 /* Selecte a font from ENTITIES (list of font-entity vectors) that
3271 supports C and matches best with ATTRS and PIXEL_SIZE. */
3274 font_select_entity (frame
, entities
, attrs
, pixel_size
, c
)
3275 Lisp_Object frame
, entities
, *attrs
;
3278 Lisp_Object font_entity
;
3281 FRAME_PTR f
= XFRAME (frame
);
3283 if (NILP (XCDR (entities
))
3284 && ASIZE (XCAR (entities
)) == 1)
3286 font_entity
= AREF (XCAR (entities
), 0);
3288 || (result
= font_has_char (f
, font_entity
, c
)) > 0)
3293 /* Sort fonts by properties specified in ATTRS. */
3294 prefer
= scratch_font_prefer
;
3296 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
3297 ASET (prefer
, i
, Qnil
);
3298 if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3300 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3302 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
3303 ASET (prefer
, i
, AREF (face_font
, i
));
3305 if (NILP (AREF (prefer
, FONT_WEIGHT_INDEX
)))
3306 FONT_SET_STYLE (prefer
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
3307 if (NILP (AREF (prefer
, FONT_SLANT_INDEX
)))
3308 FONT_SET_STYLE (prefer
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
3309 if (NILP (AREF (prefer
, FONT_WIDTH_INDEX
)))
3310 FONT_SET_STYLE (prefer
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
3311 ASET (prefer
, FONT_SIZE_INDEX
, make_number (pixel_size
));
3313 return font_sort_entities (entities
, prefer
, frame
, c
);
3316 /* Return a font-entity satisfying SPEC and best matching with face's
3317 font related attributes in ATTRS. C, if not negative, is a
3318 character that the entity must support. */
3321 font_find_for_lface (f
, attrs
, spec
, c
)
3328 Lisp_Object frame
, entities
, val
;
3329 Lisp_Object size
, foundry
[3], *family
, registry
[3], adstyle
[3];
3333 registry
[0] = AREF (spec
, FONT_REGISTRY_INDEX
);
3334 if (NILP (registry
[0]))
3336 registry
[0] = DEFAULT_ENCODING
;
3337 registry
[1] = Qascii_0
;
3338 registry
[2] = null_vector
;
3341 registry
[1] = null_vector
;
3343 if (c
>= 0 && ! NILP (AREF (spec
, FONT_REGISTRY_INDEX
)))
3345 struct charset
*encoding
, *repertory
;
3347 if (font_registry_charsets (AREF (spec
, FONT_REGISTRY_INDEX
),
3348 &encoding
, &repertory
) < 0)
3351 && ENCODE_CHAR (repertory
, c
) == CHARSET_INVALID_CODE (repertory
))
3353 else if (c
> encoding
->max_char
)
3357 work
= Fcopy_font_spec (spec
);
3358 ASET (work
, FONT_TYPE_INDEX
, AREF (spec
, FONT_TYPE_INDEX
));
3359 XSETFRAME (frame
, f
);
3360 size
= AREF (spec
, FONT_SIZE_INDEX
);
3361 pixel_size
= font_pixel_size (f
, spec
);
3362 if (pixel_size
== 0)
3364 double pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3366 pixel_size
= POINT_TO_PIXEL (pt
/ 10, f
->resy
);
3368 ASET (work
, FONT_SIZE_INDEX
, Qnil
);
3369 foundry
[0] = AREF (work
, FONT_FOUNDRY_INDEX
);
3370 if (! NILP (foundry
[0]))
3371 foundry
[1] = null_vector
;
3372 else if (STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]))
3374 val
= attrs
[LFACE_FOUNDRY_INDEX
];
3375 foundry
[0] = font_intern_prop ((char *) SDATA (val
), SBYTES (val
), 1);
3377 foundry
[2] = null_vector
;
3380 foundry
[0] = Qnil
, foundry
[1] = null_vector
;
3382 adstyle
[0] = AREF (work
, FONT_ADSTYLE_INDEX
);
3383 if (! NILP (adstyle
[0]))
3384 adstyle
[1] = null_vector
;
3385 else if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3387 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3389 if (! NILP (AREF (face_font
, FONT_ADSTYLE_INDEX
)))
3391 adstyle
[0] = AREF (face_font
, FONT_ADSTYLE_INDEX
);
3393 adstyle
[2] = null_vector
;
3396 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3399 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3402 val
= AREF (work
, FONT_FAMILY_INDEX
);
3403 if (NILP (val
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
3405 val
= attrs
[LFACE_FAMILY_INDEX
];
3406 val
= font_intern_prop ((char *) SDATA (val
), SBYTES (val
), 1);
3410 family
= alloca ((sizeof family
[0]) * 2);
3412 family
[1] = null_vector
; /* terminator. */
3417 = Fassoc_string (val
, Vface_alternative_font_family_alist
,
3418 /* Font family names are case-sensitive under NS. */
3426 if (! NILP (alters
))
3428 family
= alloca ((sizeof family
[0]) * (XINT (Flength (alters
)) + 2));
3429 for (i
= 0; CONSP (alters
); i
++, alters
= XCDR (alters
))
3430 family
[i
] = XCAR (alters
);
3431 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3433 family
[i
] = null_vector
;
3437 family
= alloca ((sizeof family
[0]) * 3);
3440 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3442 family
[i
] = null_vector
;
3446 for (i
= 0; SYMBOLP (family
[i
]); i
++)
3448 ASET (work
, FONT_FAMILY_INDEX
, family
[i
]);
3449 for (j
= 0; SYMBOLP (foundry
[j
]); j
++)
3451 ASET (work
, FONT_FOUNDRY_INDEX
, foundry
[j
]);
3452 for (k
= 0; SYMBOLP (registry
[k
]); k
++)
3454 ASET (work
, FONT_REGISTRY_INDEX
, registry
[k
]);
3455 for (l
= 0; SYMBOLP (adstyle
[l
]); l
++)
3457 ASET (work
, FONT_ADSTYLE_INDEX
, adstyle
[l
]);
3458 entities
= font_list_entities (frame
, work
);
3459 if (! NILP (entities
))
3461 val
= font_select_entity (frame
, entities
,
3462 attrs
, pixel_size
, c
);
3475 font_open_for_lface (f
, entity
, attrs
, spec
)
3483 if (INTEGERP (AREF (entity
, FONT_SIZE_INDEX
))
3484 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
3485 size
= XINT (AREF (entity
, FONT_SIZE_INDEX
));
3486 else if (FONT_SPEC_P (spec
) && ! NILP (AREF (spec
, FONT_SIZE_INDEX
)))
3487 size
= font_pixel_size (f
, spec
);
3491 if (INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]))
3492 pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3495 struct face
*def
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3496 Lisp_Object height
= def
->lface
[LFACE_HEIGHT_INDEX
];
3497 if (INTEGERP (height
))
3500 abort(); /* We should never end up here. */
3504 size
= POINT_TO_PIXEL (pt
, f
->resy
);
3508 Lisp_Object ffsize
= get_frame_param(f
, Qfontsize
);
3509 size
= NUMBERP (ffsize
) ? POINT_TO_PIXEL (XINT (ffsize
), f
->resy
) : 0;
3513 return font_open_entity (f
, entity
, size
);
3517 /* Find a font satisfying SPEC and best matching with face's
3518 attributes in ATTRS on FRAME, and return the opened
3522 font_load_for_lface (f
, attrs
, spec
)
3524 Lisp_Object
*attrs
, spec
;
3526 Lisp_Object entity
, name
;
3528 entity
= font_find_for_lface (f
, attrs
, spec
, -1);
3531 /* No font is listed for SPEC, but each font-backend may have
3532 the different criteria about "font matching". So, try
3534 entity
= font_matching_entity (f
, attrs
, spec
);
3538 /* Don't loose the original name that was put in initially. We need
3539 it to re-apply the font when font parameters (like hinting or dpi) have
3541 entity
= font_open_for_lface (f
, entity
, attrs
, spec
);
3544 name
= Ffont_get (spec
, QCuser_spec
);
3545 if (STRINGP (name
)) font_put_extra (entity
, QCuser_spec
, name
);
3551 /* Make FACE on frame F ready to use the font opened for FACE. */
3554 font_prepare_for_face (f
, face
)
3558 if (face
->font
->driver
->prepare_face
)
3559 face
->font
->driver
->prepare_face (f
, face
);
3563 /* Make FACE on frame F stop using the font opened for FACE. */
3566 font_done_for_face (f
, face
)
3570 if (face
->font
->driver
->done_face
)
3571 face
->font
->driver
->done_face (f
, face
);
3576 /* Open a font matching with font-spec SPEC on frame F. If no proper
3577 font is found, return Qnil. */
3580 font_open_by_spec (f
, spec
)
3584 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3586 /* We set up the default font-related attributes of a face to prefer
3588 attrs
[LFACE_FAMILY_INDEX
] = attrs
[LFACE_FOUNDRY_INDEX
] = Qnil
;
3589 attrs
[LFACE_SWIDTH_INDEX
] = attrs
[LFACE_WEIGHT_INDEX
]
3590 = attrs
[LFACE_SLANT_INDEX
] = Qnormal
;
3592 attrs
[LFACE_HEIGHT_INDEX
] = make_number (120);
3594 attrs
[LFACE_HEIGHT_INDEX
] = make_number (0);
3596 attrs
[LFACE_FONT_INDEX
] = Qnil
;
3598 return font_load_for_lface (f
, attrs
, spec
);
3602 /* Open a font matching with NAME on frame F. If no proper font is
3603 found, return Qnil. */
3606 font_open_by_name (f
, name
)
3610 Lisp_Object args
[2];
3611 Lisp_Object spec
, ret
;
3614 args
[1] = make_unibyte_string (name
, strlen (name
));
3615 spec
= Ffont_spec (2, args
);
3616 ret
= font_open_by_spec (f
, spec
);
3617 /* Do not loose name originally put in. */
3619 font_put_extra (ret
, QCuser_spec
, args
[1]);
3625 /* Register font-driver DRIVER. This function is used in two ways.
3627 The first is with frame F non-NULL. In this case, make DRIVER
3628 available (but not yet activated) on F. All frame creaters
3629 (e.g. Fx_create_frame) must call this function at least once with
3630 an available font-driver.
3632 The second is with frame F NULL. In this case, DRIVER is globally
3633 registered in the variable `font_driver_list'. All font-driver
3634 implementations must call this function in its syms_of_XXXX
3635 (e.g. syms_of_xfont). */
3638 register_font_driver (driver
, f
)
3639 struct font_driver
*driver
;
3642 struct font_driver_list
*root
= f
? f
->font_driver_list
: font_driver_list
;
3643 struct font_driver_list
*prev
, *list
;
3645 if (f
&& ! driver
->draw
)
3646 error ("Unusable font driver for a frame: %s",
3647 SDATA (SYMBOL_NAME (driver
->type
)));
3649 for (prev
= NULL
, list
= root
; list
; prev
= list
, list
= list
->next
)
3650 if (EQ (list
->driver
->type
, driver
->type
))
3651 error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver
->type
)));
3653 list
= xmalloc (sizeof (struct font_driver_list
));
3655 list
->driver
= driver
;
3660 f
->font_driver_list
= list
;
3662 font_driver_list
= list
;
3668 free_font_driver_list (f
)
3671 struct font_driver_list
*list
, *next
;
3673 for (list
= f
->font_driver_list
; list
; list
= next
)
3678 f
->font_driver_list
= NULL
;
3682 /* Make the frame F use font backends listed in NEW_DRIVERS (list of
3683 symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all
3684 available font drivers. If NEW_DRIVERS is nil, finalize all drivers.
3686 A caller must free all realized faces if any in advance. The
3687 return value is a list of font backends actually made used on
3691 font_update_drivers (f
, new_drivers
)
3693 Lisp_Object new_drivers
;
3695 Lisp_Object active_drivers
= Qnil
;
3696 struct font_driver
*driver
;
3697 struct font_driver_list
*list
;
3699 /* At first, turn off non-requested drivers, and turn on requested
3701 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3703 driver
= list
->driver
;
3704 if ((EQ (new_drivers
, Qt
) || ! NILP (Fmemq (driver
->type
, new_drivers
)))
3709 if (driver
->end_for_frame
)
3710 driver
->end_for_frame (f
);
3711 font_finish_cache (f
, driver
);
3716 if (! driver
->start_for_frame
3717 || driver
->start_for_frame (f
) == 0)
3719 font_prepare_cache (f
, driver
);
3726 if (NILP (new_drivers
))
3729 if (! EQ (new_drivers
, Qt
))
3731 /* Re-order the driver list according to new_drivers. */
3732 struct font_driver_list
**list_table
, **next
;
3736 list_table
= alloca (sizeof list_table
[0] * (num_font_drivers
+ 1));
3737 for (i
= 0, tail
= new_drivers
; ! NILP (tail
); tail
= XCDR (tail
))
3739 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3740 if (list
->on
&& EQ (list
->driver
->type
, XCAR (tail
)))
3743 list_table
[i
++] = list
;
3745 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3747 list_table
[i
++] = list
;
3748 list_table
[i
] = NULL
;
3750 next
= &f
->font_driver_list
;
3751 for (i
= 0; list_table
[i
]; i
++)
3753 *next
= list_table
[i
];
3754 next
= &(*next
)->next
;
3758 if (! f
->font_driver_list
->on
)
3759 { /* None of the drivers is enabled: enable them all.
3760 Happens if you set the list of drivers to (xft x) in your .emacs
3761 and then use it under w32 or ns. */
3762 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3764 struct font_driver
*driver
= list
->driver
;
3765 eassert (! list
->on
);
3766 if (! driver
->start_for_frame
3767 || driver
->start_for_frame (f
) == 0)
3769 font_prepare_cache (f
, driver
);
3776 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3778 active_drivers
= nconc2 (active_drivers
,
3779 Fcons (list
->driver
->type
, Qnil
));
3780 return active_drivers
;
3784 font_put_frame_data (f
, driver
, data
)
3786 struct font_driver
*driver
;
3789 struct font_data_list
*list
, *prev
;
3791 for (prev
= NULL
, list
= f
->font_data_list
; list
;
3792 prev
= list
, list
= list
->next
)
3793 if (list
->driver
== driver
)
3800 prev
->next
= list
->next
;
3802 f
->font_data_list
= list
->next
;
3810 list
= xmalloc (sizeof (struct font_data_list
));
3811 list
->driver
= driver
;
3812 list
->next
= f
->font_data_list
;
3813 f
->font_data_list
= list
;
3821 font_get_frame_data (f
, driver
)
3823 struct font_driver
*driver
;
3825 struct font_data_list
*list
;
3827 for (list
= f
->font_data_list
; list
; list
= list
->next
)
3828 if (list
->driver
== driver
)
3836 /* Return the font used to draw character C by FACE at buffer position
3837 POS in window W. If STRING is non-nil, it is a string containing C
3838 at index POS. If C is negative, get C from the current buffer or
3842 font_at (c
, pos
, face
, w
, string
)
3851 Lisp_Object font_object
;
3853 multibyte
= (NILP (string
)
3854 ? ! NILP (current_buffer
->enable_multibyte_characters
)
3855 : STRING_MULTIBYTE (string
));
3862 EMACS_INT pos_byte
= CHAR_TO_BYTE (pos
);
3864 c
= FETCH_CHAR (pos_byte
);
3867 c
= FETCH_BYTE (pos
);
3873 multibyte
= STRING_MULTIBYTE (string
);
3876 EMACS_INT pos_byte
= string_char_to_byte (string
, pos
);
3878 str
= SDATA (string
) + pos_byte
;
3879 c
= STRING_CHAR (str
);
3882 c
= SDATA (string
)[pos
];
3886 f
= XFRAME (w
->frame
);
3887 if (! FRAME_WINDOW_P (f
))
3894 if (STRINGP (string
))
3895 face_id
= face_at_string_position (w
, string
, pos
, 0, -1, -1, &endptr
,
3896 DEFAULT_FACE_ID
, 0);
3898 face_id
= face_at_buffer_position (w
, pos
, -1, -1, &endptr
,
3900 face
= FACE_FROM_ID (f
, face_id
);
3904 int face_id
= FACE_FOR_CHAR (f
, face
, c
, pos
, string
);
3905 face
= FACE_FROM_ID (f
, face_id
);
3910 XSETFONT (font_object
, face
->font
);
3915 #ifdef HAVE_WINDOW_SYSTEM
3917 /* Check how many characters after POS (at most to *LIMIT) can be
3918 displayed by the same font on the window W. FACE, if non-NULL, is
3919 the face selected for the character at POS. If STRING is not nil,
3920 it is the string to check instead of the current buffer. In that
3921 case, FACE must be not NULL.
3923 The return value is the font-object for the character at POS.
3924 *LIMIT is set to the position where that font can't be used.
3926 It is assured that the current buffer (or STRING) is multibyte. */
3929 font_range (pos
, limit
, w
, face
, string
)
3930 EMACS_INT pos
, *limit
;
3935 EMACS_INT pos_byte
, ignore
, start
, start_byte
;
3937 Lisp_Object font_object
= Qnil
;
3941 pos_byte
= CHAR_TO_BYTE (pos
);
3946 face_id
= face_at_buffer_position (w
, pos
, 0, 0, &ignore
,
3948 face
= FACE_FROM_ID (XFRAME (w
->frame
), face_id
);
3954 pos_byte
= string_char_to_byte (string
, pos
);
3957 start
= pos
, start_byte
= pos_byte
;
3958 while (pos
< *limit
)
3960 Lisp_Object category
;
3963 FETCH_CHAR_ADVANCE_NO_CHECK (c
, pos
, pos_byte
);
3965 FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c
, string
, pos
, pos_byte
);
3966 if (NILP (font_object
))
3968 font_object
= font_for_char (face
, c
, pos
- 1, string
);
3969 if (NILP (font_object
))
3974 category
= CHAR_TABLE_REF (Vunicode_category_table
, c
);
3975 if (! EQ (category
, QCf
)
3976 && ! CHAR_VARIATION_SELECTOR_P (c
)
3977 && font_encode_char (font_object
, c
) == FONT_INVALID_CODE
)
3979 Lisp_Object f
= font_for_char (face
, c
, pos
- 1, string
);
3980 EMACS_INT i
, i_byte
;
3988 i
= start
, i_byte
= start_byte
;
3993 FETCH_CHAR_ADVANCE_NO_CHECK (c
, i
, i_byte
);
3995 FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c
, string
, i
, i_byte
);
3996 category
= CHAR_TABLE_REF (Vunicode_category_table
, c
);
3997 if (! EQ (category
, QCf
)
3998 && ! CHAR_VARIATION_SELECTOR_P (c
)
3999 && font_encode_char (f
, c
) == FONT_INVALID_CODE
)
4015 DEFUN ("fontp", Ffontp
, Sfontp
, 1, 2, 0,
4016 doc
: /* Return t if OBJECT is a font-spec, font-entity, or font-object.
4017 Return nil otherwise.
4018 Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check
4019 which kind of font it is. It must be one of `font-spec', `font-entity',
4021 (object
, extra_type
)
4022 Lisp_Object object
, extra_type
;
4024 if (NILP (extra_type
))
4025 return (FONTP (object
) ? Qt
: Qnil
);
4026 if (EQ (extra_type
, Qfont_spec
))
4027 return (FONT_SPEC_P (object
) ? Qt
: Qnil
);
4028 if (EQ (extra_type
, Qfont_entity
))
4029 return (FONT_ENTITY_P (object
) ? Qt
: Qnil
);
4030 if (EQ (extra_type
, Qfont_object
))
4031 return (FONT_OBJECT_P (object
) ? Qt
: Qnil
);
4032 wrong_type_argument (intern ("font-extra-type"), extra_type
);
4035 DEFUN ("font-spec", Ffont_spec
, Sfont_spec
, 0, MANY
, 0,
4036 doc
: /* Return a newly created font-spec with arguments as properties.
4038 ARGS must come in pairs KEY VALUE of font properties. KEY must be a
4039 valid font property name listed below:
4041 `:family', `:weight', `:slant', `:width'
4043 They are the same as face attributes of the same name. See
4044 `set-face-attribute'.
4048 VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''.
4052 VALUE must be a string or a symbol specifying the additional
4053 typographic style information of a font, e.g. ``sans''.
4057 VALUE must be a string or a symbol specifying the charset registry and
4058 encoding of a font, e.g. ``iso8859-1''.
4062 VALUE must be a non-negative integer or a floating point number
4063 specifying the font size. It specifies the font size in pixels (if
4064 VALUE is an integer), or in points (if VALUE is a float).
4068 VALUE must be a string of XLFD-style or fontconfig-style font name.
4072 VALUE must be a symbol representing a script that the font must
4073 support. It may be a symbol representing a subgroup of a script
4074 listed in the variable `script-representative-chars'.
4078 VALUE must be a symbol of two-letter ISO-639 language names,
4083 VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify
4084 required OpenType features.
4086 SCRIPT-TAG: OpenType script tag symbol (e.g. `deva').
4087 LANGSYS-TAG: OpenType language system tag symbol,
4088 or nil for the default language system.
4089 GSUB: List of OpenType GSUB feature tag symbols, or nil if none required.
4090 GPOS: List of OpenType GPOS feature tag symbols, or nil if none required.
4092 GSUB and GPOS may contain `nil' element. In such a case, the font
4093 must not have any of the remaining elements.
4095 For instance, if the VALUE is `(thai nil nil (mark))', the font must
4096 be an OpenType font, and whose GPOS table of `thai' script's default
4097 language system must contain `mark' feature.
4099 usage: (font-spec ARGS...) */)
4104 Lisp_Object spec
= font_make_spec ();
4107 for (i
= 0; i
< nargs
; i
+= 2)
4109 Lisp_Object key
= args
[i
], val
;
4113 error ("No value for key `%s'", SDATA (SYMBOL_NAME (key
)));
4116 if (EQ (key
, QCname
))
4119 font_parse_name ((char *) SDATA (val
), spec
);
4120 font_put_extra (spec
, key
, val
);
4124 int idx
= get_font_prop_index (key
);
4128 val
= font_prop_validate (idx
, Qnil
, val
);
4129 if (idx
< FONT_EXTRA_INDEX
)
4130 ASET (spec
, idx
, val
);
4132 font_put_extra (spec
, key
, val
);
4135 font_put_extra (spec
, key
, font_prop_validate (0, key
, val
));
4141 DEFUN ("copy-font-spec", Fcopy_font_spec
, Scopy_font_spec
, 1, 1, 0,
4142 doc
: /* Return a copy of FONT as a font-spec. */)
4146 Lisp_Object new_spec
, tail
, prev
, extra
;
4150 new_spec
= font_make_spec ();
4151 for (i
= 1; i
< FONT_EXTRA_INDEX
; i
++)
4152 ASET (new_spec
, i
, AREF (font
, i
));
4153 extra
= Fcopy_alist (AREF (font
, FONT_EXTRA_INDEX
));
4154 /* We must remove :font-entity property. */
4155 for (prev
= Qnil
, tail
= extra
; CONSP (tail
); prev
= tail
, tail
= XCDR (tail
))
4156 if (EQ (XCAR (XCAR (tail
)), QCfont_entity
))
4159 extra
= XCDR (extra
);
4161 XSETCDR (prev
, XCDR (tail
));
4164 ASET (new_spec
, FONT_EXTRA_INDEX
, extra
);
4168 DEFUN ("merge-font-spec", Fmerge_font_spec
, Smerge_font_spec
, 2, 2, 0,
4169 doc
: /* Merge font-specs FROM and TO, and return a new font-spec.
4170 Every specified properties in FROM override the corresponding
4171 properties in TO. */)
4173 Lisp_Object from
, to
;
4175 Lisp_Object extra
, tail
;
4180 to
= Fcopy_font_spec (to
);
4181 for (i
= 0; i
< FONT_EXTRA_INDEX
; i
++)
4182 ASET (to
, i
, AREF (from
, i
));
4183 extra
= AREF (to
, FONT_EXTRA_INDEX
);
4184 for (tail
= AREF (from
, FONT_EXTRA_INDEX
); CONSP (tail
); tail
= XCDR (tail
))
4185 if (! EQ (XCAR (XCAR (tail
)), Qfont_entity
))
4187 Lisp_Object slot
= assq_no_quit (XCAR (XCAR (tail
)), extra
);
4190 XSETCDR (slot
, XCDR (XCAR (tail
)));
4192 extra
= Fcons (Fcons (XCAR (XCAR (tail
)), XCDR (XCAR (tail
))), extra
);
4194 ASET (to
, FONT_EXTRA_INDEX
, extra
);
4198 DEFUN ("font-get", Ffont_get
, Sfont_get
, 2, 2, 0,
4199 doc
: /* Return the value of FONT's property KEY.
4200 FONT is a font-spec, a font-entity, or a font-object.
4201 KEY must be one of these symbols:
4202 :family, :weight, :slant, :width, :foundry, :adstyle, :registry,
4203 :size, :name, :script
4204 See the documentation of `font-spec' for their meanings.
4205 If FONT is a font-entity or font-object, the value of :script may be
4206 a list of scripts that are supported by the font. */)
4208 Lisp_Object font
, key
;
4215 idx
= get_font_prop_index (key
);
4216 if (idx
>= FONT_WEIGHT_INDEX
&& idx
<= FONT_WIDTH_INDEX
)
4217 return font_style_symbolic (font
, idx
, 0);
4218 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
4219 return AREF (font
, idx
);
4220 return Fcdr (Fassq (key
, AREF (font
, FONT_EXTRA_INDEX
)));
4223 #ifdef HAVE_WINDOW_SYSTEM
4225 DEFUN ("font-face-attributes", Ffont_face_attributes
, Sfont_face_attributes
, 1, 2, 0,
4226 doc
: /* Return a plist of face attributes generated by FONT.
4227 FONT is a font name, a font-spec, a font-entity, or a font-object.
4228 The return value is a list of the form
4230 \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH)
4232 where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values
4233 compatible with `set-face-attribute'. Some of these key-attribute pairs
4234 may be omitted from the list if they are not specified by FONT.
4236 The optional argument FRAME specifies the frame that the face attributes
4237 are to be displayed on. If omitted, the selected frame is used. */)
4239 Lisp_Object font
, frame
;
4242 Lisp_Object plist
[10];
4247 frame
= selected_frame
;
4248 CHECK_LIVE_FRAME (frame
);
4253 int fontset
= fs_query_fontset (font
, 0);
4254 Lisp_Object name
= font
;
4256 font
= fontset_ascii (fontset
);
4257 font
= font_spec_from_name (name
);
4259 signal_error ("Invalid font name", name
);
4261 else if (! FONTP (font
))
4262 signal_error ("Invalid font object", font
);
4264 val
= AREF (font
, FONT_FAMILY_INDEX
);
4267 plist
[n
++] = QCfamily
;
4268 plist
[n
++] = SYMBOL_NAME (val
);
4271 val
= AREF (font
, FONT_SIZE_INDEX
);
4274 Lisp_Object font_dpi
= AREF (font
, FONT_DPI_INDEX
);
4275 int dpi
= INTEGERP (font_dpi
) ? XINT (font_dpi
) : f
->resy
;
4276 plist
[n
++] = QCheight
;
4277 plist
[n
++] = make_number (PIXEL_TO_POINT (XINT (val
) * 10, dpi
));
4279 else if (FLOATP (val
))
4281 plist
[n
++] = QCheight
;
4282 plist
[n
++] = make_number (10 * (int) XFLOAT_DATA (val
));
4285 val
= FONT_WEIGHT_FOR_FACE (font
);
4288 plist
[n
++] = QCweight
;
4292 val
= FONT_SLANT_FOR_FACE (font
);
4295 plist
[n
++] = QCslant
;
4299 val
= FONT_WIDTH_FOR_FACE (font
);
4302 plist
[n
++] = QCwidth
;
4306 return Flist (n
, plist
);
4311 DEFUN ("font-put", Ffont_put
, Sfont_put
, 3, 3, 0,
4312 doc
: /* Set one property of FONT-SPEC: give property PROP value VAL. */)
4313 (font_spec
, prop
, val
)
4314 Lisp_Object font_spec
, prop
, val
;
4318 CHECK_FONT_SPEC (font_spec
);
4319 idx
= get_font_prop_index (prop
);
4320 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
4321 ASET (font_spec
, idx
, font_prop_validate (idx
, Qnil
, val
));
4323 font_put_extra (font_spec
, prop
, font_prop_validate (0, prop
, val
));
4327 DEFUN ("list-fonts", Flist_fonts
, Slist_fonts
, 1, 4, 0,
4328 doc
: /* List available fonts matching FONT-SPEC on the current frame.
4329 Optional 2nd argument FRAME specifies the target frame.
4330 Optional 3rd argument NUM, if non-nil, limits the number of returned fonts.
4331 Optional 4th argument PREFER, if non-nil, is a font-spec to
4332 control the order of the returned list. Fonts are sorted by
4333 how close they are to PREFER. */)
4334 (font_spec
, frame
, num
, prefer
)
4335 Lisp_Object font_spec
, frame
, num
, prefer
;
4337 Lisp_Object vec
, list
;
4341 frame
= selected_frame
;
4342 CHECK_LIVE_FRAME (frame
);
4343 CHECK_FONT_SPEC (font_spec
);
4351 if (! NILP (prefer
))
4352 CHECK_FONT_SPEC (prefer
);
4354 list
= font_list_entities (frame
, font_spec
);
4357 if (NILP (XCDR (list
))
4358 && ASIZE (XCAR (list
)) == 1)
4359 return Fcons (AREF (XCAR (list
), 0), Qnil
);
4361 if (! NILP (prefer
))
4362 vec
= font_sort_entities (list
, prefer
, frame
, 0);
4364 vec
= font_vconcat_entity_vectors (list
);
4365 if (n
== 0 || n
>= ASIZE (vec
))
4367 Lisp_Object args
[2];
4371 list
= Fappend (2, args
);
4375 for (list
= Qnil
, n
--; n
>= 0; n
--)
4376 list
= Fcons (AREF (vec
, n
), list
);
4381 DEFUN ("font-family-list", Ffont_family_list
, Sfont_family_list
, 0, 1, 0,
4382 doc
: /* List available font families on the current frame.
4383 Optional argument FRAME, if non-nil, specifies the target frame. */)
4388 struct font_driver_list
*driver_list
;
4392 frame
= selected_frame
;
4393 CHECK_LIVE_FRAME (frame
);
4396 for (driver_list
= f
->font_driver_list
; driver_list
;
4397 driver_list
= driver_list
->next
)
4398 if (driver_list
->driver
->list_family
)
4400 Lisp_Object val
= driver_list
->driver
->list_family (frame
);
4401 Lisp_Object tail
= list
;
4403 for (; CONSP (val
); val
= XCDR (val
))
4404 if (NILP (Fmemq (XCAR (val
), tail
))
4405 && SYMBOLP (XCAR (val
)))
4406 list
= Fcons (SYMBOL_NAME (XCAR (val
)), list
);
4411 DEFUN ("find-font", Ffind_font
, Sfind_font
, 1, 2, 0,
4412 doc
: /* Return a font-entity matching with FONT-SPEC on the current frame.
4413 Optional 2nd argument FRAME, if non-nil, specifies the target frame. */)
4415 Lisp_Object font_spec
, frame
;
4417 Lisp_Object val
= Flist_fonts (font_spec
, frame
, make_number (1), Qnil
);
4424 DEFUN ("font-xlfd-name", Ffont_xlfd_name
, Sfont_xlfd_name
, 1, 2, 0,
4425 doc
: /* Return XLFD name of FONT.
4426 FONT is a font-spec, font-entity, or font-object.
4427 If the name is too long for XLFD (maximum 255 chars), return nil.
4428 If the 2nd optional arg FOLD-WILDCARDS is non-nil,
4429 the consecutive wildcards are folded to one. */)
4430 (font
, fold_wildcards
)
4431 Lisp_Object font
, fold_wildcards
;
4438 if (FONT_OBJECT_P (font
))
4440 Lisp_Object font_name
= AREF (font
, FONT_NAME_INDEX
);
4442 if (STRINGP (font_name
)
4443 && SDATA (font_name
)[0] == '-')
4445 if (NILP (fold_wildcards
))
4447 strcpy (name
, (char *) SDATA (font_name
));
4450 pixel_size
= XFONT_OBJECT (font
)->pixel_size
;
4452 if (font_unparse_xlfd (font
, pixel_size
, name
, 256) < 0)
4455 if (! NILP (fold_wildcards
))
4457 char *p0
= name
, *p1
;
4459 while ((p1
= strstr (p0
, "-*-*")))
4461 strcpy (p1
, p1
+ 2);
4466 return build_string (name
);
4469 DEFUN ("clear-font-cache", Fclear_font_cache
, Sclear_font_cache
, 0, 0, 0,
4470 doc
: /* Clear font cache. */)
4473 Lisp_Object list
, frame
;
4475 FOR_EACH_FRAME (list
, frame
)
4477 FRAME_PTR f
= XFRAME (frame
);
4478 struct font_driver_list
*driver_list
= f
->font_driver_list
;
4480 for (; driver_list
; driver_list
= driver_list
->next
)
4481 if (driver_list
->on
)
4483 Lisp_Object cache
= driver_list
->driver
->get_cache (f
);
4484 Lisp_Object val
, tmp
;
4488 && ! EQ (XCAR (XCAR (val
)), driver_list
->driver
->type
))
4490 font_assert (! NILP (val
));
4491 tmp
= XCDR (XCAR (val
));
4492 if (XINT (XCAR (tmp
)) == 0)
4494 font_clear_cache (f
, XCAR (val
), driver_list
->driver
);
4495 XSETCDR (cache
, XCDR (val
));
4505 font_fill_lglyph_metrics (glyph
, font_object
)
4506 Lisp_Object glyph
, font_object
;
4508 struct font
*font
= XFONT_OBJECT (font_object
);
4510 /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */
4511 EMACS_INT ecode
= font
->driver
->encode_char (font
, LGLYPH_CHAR (glyph
));
4512 struct font_metrics metrics
;
4514 LGLYPH_SET_CODE (glyph
, ecode
);
4516 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4517 LGLYPH_SET_LBEARING (glyph
, metrics
.lbearing
);
4518 LGLYPH_SET_RBEARING (glyph
, metrics
.rbearing
);
4519 LGLYPH_SET_WIDTH (glyph
, metrics
.width
);
4520 LGLYPH_SET_ASCENT (glyph
, metrics
.ascent
);
4521 LGLYPH_SET_DESCENT (glyph
, metrics
.descent
);
4525 DEFUN ("font-shape-gstring", Ffont_shape_gstring
, Sfont_shape_gstring
, 1, 1, 0,
4526 doc
: /* Shape the glyph-string GSTRING.
4527 Shaping means substituting glyphs and/or adjusting positions of glyphs
4528 to get the correct visual image of character sequences set in the
4529 header of the glyph-string.
4531 If the shaping was successful, the value is GSTRING itself or a newly
4532 created glyph-string. Otherwise, the value is nil. */)
4534 Lisp_Object gstring
;
4537 Lisp_Object font_object
, n
, glyph
;
4540 if (! composition_gstring_p (gstring
))
4541 signal_error ("Invalid glyph-string: ", gstring
);
4542 if (! NILP (LGSTRING_ID (gstring
)))
4544 font_object
= LGSTRING_FONT (gstring
);
4545 CHECK_FONT_OBJECT (font_object
);
4546 font
= XFONT_OBJECT (font_object
);
4547 if (! font
->driver
->shape
)
4550 /* Try at most three times with larger gstring each time. */
4551 for (i
= 0; i
< 3; i
++)
4553 n
= font
->driver
->shape (gstring
);
4556 gstring
= larger_vector (gstring
,
4557 ASIZE (gstring
) + LGSTRING_GLYPH_LEN (gstring
),
4560 if (i
== 3 || XINT (n
) == 0)
4563 glyph
= LGSTRING_GLYPH (gstring
, 0);
4564 from
= LGLYPH_FROM (glyph
);
4565 to
= LGLYPH_TO (glyph
);
4566 for (i
= 1, j
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
4568 Lisp_Object
this = LGSTRING_GLYPH (gstring
, i
);
4572 if (NILP (LGLYPH_ADJUSTMENT (this)))
4577 glyph
= LGSTRING_GLYPH (gstring
, j
);
4578 LGLYPH_SET_FROM (glyph
, from
);
4579 LGLYPH_SET_TO (glyph
, to
);
4581 from
= LGLYPH_FROM (this);
4582 to
= LGLYPH_TO (this);
4587 if (from
> LGLYPH_FROM (this))
4588 from
= LGLYPH_FROM (this);
4589 if (to
< LGLYPH_TO (this))
4590 to
= LGLYPH_TO (this);
4596 glyph
= LGSTRING_GLYPH (gstring
, j
);
4597 LGLYPH_SET_FROM (glyph
, from
);
4598 LGLYPH_SET_TO (glyph
, to
);
4600 return composition_gstring_put_cache (gstring
, XINT (n
));
4603 DEFUN ("font-variation-glyphs", Ffont_variation_glyphs
, Sfont_variation_glyphs
,
4605 doc
: /* Return a list of variation glyphs for CHAR in FONT-OBJECT.
4606 Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID),
4608 VARIATION-SELECTOR is a chracter code of variation selection
4609 (#xFE00..#xFE0F or #xE0100..#xE01EF)
4610 GLYPH-ID is a glyph code of the corresponding variation glyph. */)
4611 (font_object
, character
)
4612 Lisp_Object font_object
, character
;
4614 unsigned variations
[256];
4619 CHECK_FONT_OBJECT (font_object
);
4620 CHECK_CHARACTER (character
);
4621 font
= XFONT_OBJECT (font_object
);
4622 if (! font
->driver
->get_variation_glyphs
)
4624 n
= font
->driver
->get_variation_glyphs (font
, XINT (character
), variations
);
4628 for (i
= 0; i
< 255; i
++)
4632 int vs
= (i
< 16 ? 0xFE00 + i
: 0xE0100 + (i
- 16));
4633 /* Stops GCC whining about limited range of data type. */
4634 EMACS_INT var
= variations
[i
];
4636 if (var
> MOST_POSITIVE_FIXNUM
)
4637 code
= Fcons (make_number ((variations
[i
]) >> 16),
4638 make_number ((variations
[i
]) & 0xFFFF));
4640 code
= make_number (variations
[i
]);
4641 val
= Fcons (Fcons (make_number (vs
), code
), val
);
4648 DEFUN ("font-drive-otf", Ffont_drive_otf
, Sfont_drive_otf
, 6, 6, 0,
4649 doc
: /* Apply OpenType features on glyph-string GSTRING-IN.
4650 OTF-FEATURES specifies which features to apply in this format:
4651 (SCRIPT LANGSYS GSUB GPOS)
4653 SCRIPT is a symbol specifying a script tag of OpenType,
4654 LANGSYS is a symbol specifying a langsys tag of OpenType,
4655 GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags.
4657 If LANGYS is nil, the default langsys is selected.
4659 The features are applied in the order they appear in the list. The
4660 symbol `*' means to apply all available features not present in this
4661 list, and the remaining features are ignored. For instance, (vatu
4662 pstf * haln) is to apply vatu and pstf in this order, then to apply
4663 all available features other than vatu, pstf, and haln.
4665 The features are applied to the glyphs in the range FROM and TO of
4666 the glyph-string GSTRING-IN.
4668 If some feature is actually applicable, the resulting glyphs are
4669 produced in the glyph-string GSTRING-OUT from the index INDEX. In
4670 this case, the value is the number of produced glyphs.
4672 If no feature is applicable, no glyph is produced in GSTRING-OUT, and
4675 If GSTRING-OUT is too short to hold produced glyphs, no glyphs are
4676 produced in GSTRING-OUT, and the value is nil.
4678 See the documentation of `font-make-gstring' for the format of
4680 (otf_features
, gstring_in
, from
, to
, gstring_out
, index
)
4681 Lisp_Object otf_features
, gstring_in
, from
, to
, gstring_out
, index
;
4683 Lisp_Object font_object
= LGSTRING_FONT (gstring_in
);
4688 check_otf_features (otf_features
);
4689 CHECK_FONT_OBJECT (font_object
);
4690 font
= XFONT_OBJECT (font_object
);
4691 if (! font
->driver
->otf_drive
)
4692 error ("Font backend %s can't drive OpenType GSUB table",
4693 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4694 CHECK_CONS (otf_features
);
4695 CHECK_SYMBOL (XCAR (otf_features
));
4696 val
= XCDR (otf_features
);
4697 CHECK_SYMBOL (XCAR (val
));
4698 val
= XCDR (otf_features
);
4701 len
= check_gstring (gstring_in
);
4702 CHECK_VECTOR (gstring_out
);
4703 CHECK_NATNUM (from
);
4705 CHECK_NATNUM (index
);
4707 if (XINT (from
) >= XINT (to
) || XINT (to
) > len
)
4708 args_out_of_range_3 (from
, to
, make_number (len
));
4709 if (XINT (index
) >= ASIZE (gstring_out
))
4710 args_out_of_range (index
, make_number (ASIZE (gstring_out
)));
4711 num
= font
->driver
->otf_drive (font
, otf_features
,
4712 gstring_in
, XINT (from
), XINT (to
),
4713 gstring_out
, XINT (index
), 0);
4716 return make_number (num
);
4719 DEFUN ("font-otf-alternates", Ffont_otf_alternates
, Sfont_otf_alternates
,
4721 doc
: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT.
4722 OTF-FEATURES specifies which features of the font FONT-OBJECT to apply
4724 (SCRIPT LANGSYS FEATURE ...)
4725 See the documentation of `font-drive-otf' for more detail.
4727 The value is a list of cons cells of the format (GLYPH-ID . CHARACTER),
4728 where GLYPH-ID is a glyph index of the font, and CHARACTER is a
4729 character code corresponding to the glyph or nil if there's no
4730 corresponding character. */)
4731 (font_object
, character
, otf_features
)
4732 Lisp_Object font_object
, character
, otf_features
;
4735 Lisp_Object gstring_in
, gstring_out
, g
;
4736 Lisp_Object alternates
;
4739 CHECK_FONT_GET_OBJECT (font_object
, font
);
4740 if (! font
->driver
->otf_drive
)
4741 error ("Font backend %s can't drive OpenType GSUB table",
4742 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4743 CHECK_CHARACTER (character
);
4744 CHECK_CONS (otf_features
);
4746 gstring_in
= Ffont_make_gstring (font_object
, make_number (1));
4747 g
= LGSTRING_GLYPH (gstring_in
, 0);
4748 LGLYPH_SET_CHAR (g
, XINT (character
));
4749 gstring_out
= Ffont_make_gstring (font_object
, make_number (10));
4750 while ((num
= font
->driver
->otf_drive (font
, otf_features
, gstring_in
, 0, 1,
4751 gstring_out
, 0, 1)) < 0)
4752 gstring_out
= Ffont_make_gstring (font_object
,
4753 make_number (ASIZE (gstring_out
) * 2));
4755 for (i
= 0; i
< num
; i
++)
4757 Lisp_Object g
= LGSTRING_GLYPH (gstring_out
, i
);
4758 int c
= LGLYPH_CHAR (g
);
4759 unsigned code
= LGLYPH_CODE (g
);
4761 alternates
= Fcons (Fcons (make_number (code
),
4762 c
> 0 ? make_number (c
) : Qnil
),
4765 return Fnreverse (alternates
);
4771 DEFUN ("open-font", Fopen_font
, Sopen_font
, 1, 3, 0,
4772 doc
: /* Open FONT-ENTITY. */)
4773 (font_entity
, size
, frame
)
4774 Lisp_Object font_entity
;
4780 CHECK_FONT_ENTITY (font_entity
);
4782 frame
= selected_frame
;
4783 CHECK_LIVE_FRAME (frame
);
4786 isize
= XINT (AREF (font_entity
, FONT_SIZE_INDEX
));
4789 CHECK_NUMBER_OR_FLOAT (size
);
4791 isize
= POINT_TO_PIXEL (XFLOAT_DATA (size
), XFRAME (frame
)->resy
);
4793 isize
= XINT (size
);
4797 return font_open_entity (XFRAME (frame
), font_entity
, isize
);
4800 DEFUN ("close-font", Fclose_font
, Sclose_font
, 1, 2, 0,
4801 doc
: /* Close FONT-OBJECT. */)
4802 (font_object
, frame
)
4803 Lisp_Object font_object
, frame
;
4805 CHECK_FONT_OBJECT (font_object
);
4807 frame
= selected_frame
;
4808 CHECK_LIVE_FRAME (frame
);
4809 font_close_object (XFRAME (frame
), font_object
);
4813 DEFUN ("query-font", Fquery_font
, Squery_font
, 1, 1, 0,
4814 doc
: /* Return information about FONT-OBJECT.
4815 The value is a vector:
4816 [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH
4819 NAME is a string of the font name (or nil if the font backend doesn't
4822 FILENAME is a string of the font file (or nil if the font backend
4823 doesn't provide a file name).
4825 PIXEL-SIZE is a pixel size by which the font is opened.
4827 SIZE is a maximum advance width of the font in pixels.
4829 ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in
4832 CAPABILITY is a list whose first element is a symbol representing the
4833 font format \(x, opentype, truetype, type1, pcf, or bdf) and the
4834 remaining elements describe the details of the font capability.
4836 If the font is OpenType font, the form of the list is
4837 \(opentype GSUB GPOS)
4838 where GSUB shows which "GSUB" features the font supports, and GPOS
4839 shows which "GPOS" features the font supports. Both GSUB and GPOS are
4840 lists of the format:
4841 \((SCRIPT (LANGSYS FEATURE ...) ...) ...)
4843 If the font is not OpenType font, currently the length of the form is
4846 SCRIPT is a symbol representing OpenType script tag.
4848 LANGSYS is a symbol representing OpenType langsys tag, or nil
4849 representing the default langsys.
4851 FEATURE is a symbol representing OpenType feature tag.
4853 If the font is not OpenType font, CAPABILITY is nil. */)
4855 Lisp_Object font_object
;
4860 CHECK_FONT_GET_OBJECT (font_object
, font
);
4862 val
= Fmake_vector (make_number (9), Qnil
);
4863 ASET (val
, 0, AREF (font_object
, FONT_NAME_INDEX
));
4864 ASET (val
, 1, AREF (font_object
, FONT_FILE_INDEX
));
4865 ASET (val
, 2, make_number (font
->pixel_size
));
4866 ASET (val
, 3, make_number (font
->max_width
));
4867 ASET (val
, 4, make_number (font
->ascent
));
4868 ASET (val
, 5, make_number (font
->descent
));
4869 ASET (val
, 6, make_number (font
->space_width
));
4870 ASET (val
, 7, make_number (font
->average_width
));
4871 if (font
->driver
->otf_capability
)
4872 ASET (val
, 8, Fcons (Qopentype
, font
->driver
->otf_capability (font
)));
4876 DEFUN ("get-font-glyphs", Fget_font_glyphs
, Sget_font_glyphs
, 2, 2, 0,
4877 doc
: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING.
4878 Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */)
4879 (font_object
, string
)
4880 Lisp_Object font_object
, string
;
4886 CHECK_FONT_GET_OBJECT (font_object
, font
);
4887 CHECK_STRING (string
);
4888 len
= SCHARS (string
);
4889 vec
= Fmake_vector (make_number (len
), Qnil
);
4890 for (i
= 0; i
< len
; i
++)
4892 Lisp_Object ch
= Faref (string
, make_number (i
));
4897 struct font_metrics metrics
;
4899 cod
= code
= font
->driver
->encode_char (font
, c
);
4900 if (code
== FONT_INVALID_CODE
)
4902 val
= Fmake_vector (make_number (6), Qnil
);
4903 if (cod
<= MOST_POSITIVE_FIXNUM
)
4904 ASET (val
, 0, make_number (code
));
4906 ASET (val
, 0, Fcons (make_number (code
>> 16),
4907 make_number (code
& 0xFFFF)));
4908 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4909 ASET (val
, 1, make_number (metrics
.lbearing
));
4910 ASET (val
, 2, make_number (metrics
.rbearing
));
4911 ASET (val
, 3, make_number (metrics
.width
));
4912 ASET (val
, 4, make_number (metrics
.ascent
));
4913 ASET (val
, 5, make_number (metrics
.descent
));
4919 DEFUN ("font-match-p", Ffont_match_p
, Sfont_match_p
, 2, 2, 0,
4920 doc
: /* Return t if and only if font-spec SPEC matches with FONT.
4921 FONT is a font-spec, font-entity, or font-object. */)
4923 Lisp_Object spec
, font
;
4925 CHECK_FONT_SPEC (spec
);
4928 return (font_match_p (spec
, font
) ? Qt
: Qnil
);
4931 DEFUN ("font-at", Ffont_at
, Sfont_at
, 1, 3, 0,
4932 doc
: /* Return a font-object for displaying a character at POSITION.
4933 Optional second arg WINDOW, if non-nil, is a window displaying
4934 the current buffer. It defaults to the currently selected window. */)
4935 (position
, window
, string
)
4936 Lisp_Object position
, window
, string
;
4943 CHECK_NUMBER_COERCE_MARKER (position
);
4944 pos
= XINT (position
);
4945 if (pos
< BEGV
|| pos
>= ZV
)
4946 args_out_of_range_3 (position
, make_number (BEGV
), make_number (ZV
));
4950 CHECK_NUMBER (position
);
4951 CHECK_STRING (string
);
4952 pos
= XINT (position
);
4953 if (pos
< 0 || pos
>= SCHARS (string
))
4954 args_out_of_range (string
, position
);
4957 window
= selected_window
;
4958 CHECK_LIVE_WINDOW (window
);
4959 w
= XWINDOW (window
);
4961 return font_at (-1, pos
, NULL
, w
, string
);
4965 DEFUN ("draw-string", Fdraw_string
, Sdraw_string
, 2, 2, 0,
4966 doc
: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame.
4967 The value is a number of glyphs drawn.
4968 Type C-l to recover what previously shown. */)
4969 (font_object
, string
)
4970 Lisp_Object font_object
, string
;
4972 Lisp_Object frame
= selected_frame
;
4973 FRAME_PTR f
= XFRAME (frame
);
4979 CHECK_FONT_GET_OBJECT (font_object
, font
);
4980 CHECK_STRING (string
);
4981 len
= SCHARS (string
);
4982 code
= alloca (sizeof (unsigned) * len
);
4983 for (i
= 0; i
< len
; i
++)
4985 Lisp_Object ch
= Faref (string
, make_number (i
));
4989 code
[i
] = font
->driver
->encode_char (font
, c
);
4990 if (code
[i
] == FONT_INVALID_CODE
)
4993 face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4995 if (font
->driver
->prepare_face
)
4996 font
->driver
->prepare_face (f
, face
);
4997 width
= font
->driver
->text_extents (font
, code
, i
, NULL
);
4998 len
= font
->driver
->draw_text (f
, face
, 0, font
->ascent
, code
, i
, width
);
4999 if (font
->driver
->done_face
)
5000 font
->driver
->done_face (f
, face
);
5002 return make_number (len
);
5006 #endif /* FONT_DEBUG */
5008 #ifdef HAVE_WINDOW_SYSTEM
5010 DEFUN ("font-info", Ffont_info
, Sfont_info
, 1, 2, 0,
5011 doc
: /* Return information about a font named NAME on frame FRAME.
5012 If FRAME is omitted or nil, use the selected frame.
5013 The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE,
5014 HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT,
5016 OPENED-NAME is the name used for opening the font,
5017 FULL-NAME is the full name of the font,
5018 SIZE is the pixelsize of the font,
5019 HEIGHT is the pixel-height of the font (i.e ascent + descent),
5020 BASELINE-OFFSET is the upward offset pixels from ASCII baseline,
5021 RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling
5022 how to compose characters.
5023 If the named font is not yet loaded, return nil. */)
5025 Lisp_Object name
, frame
;
5030 Lisp_Object font_object
;
5032 (*check_window_system_func
) ();
5035 CHECK_STRING (name
);
5037 frame
= selected_frame
;
5038 CHECK_LIVE_FRAME (frame
);
5043 int fontset
= fs_query_fontset (name
, 0);
5046 name
= fontset_ascii (fontset
);
5047 font_object
= font_open_by_name (f
, (char *) SDATA (name
));
5049 else if (FONT_OBJECT_P (name
))
5051 else if (FONT_ENTITY_P (name
))
5052 font_object
= font_open_entity (f
, name
, 0);
5055 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
5056 Lisp_Object entity
= font_matching_entity (f
, face
->lface
, name
);
5058 font_object
= ! NILP (entity
) ? font_open_entity (f
, entity
, 0) : Qnil
;
5060 if (NILP (font_object
))
5062 font
= XFONT_OBJECT (font_object
);
5064 info
= Fmake_vector (make_number (7), Qnil
);
5065 XVECTOR (info
)->contents
[0] = AREF (font_object
, FONT_NAME_INDEX
);
5066 XVECTOR (info
)->contents
[1] = AREF (font_object
, FONT_FULLNAME_INDEX
);
5067 XVECTOR (info
)->contents
[2] = make_number (font
->pixel_size
);
5068 XVECTOR (info
)->contents
[3] = make_number (font
->height
);
5069 XVECTOR (info
)->contents
[4] = make_number (font
->baseline_offset
);
5070 XVECTOR (info
)->contents
[5] = make_number (font
->relative_compose
);
5071 XVECTOR (info
)->contents
[6] = make_number (font
->default_ascent
);
5074 /* As font_object is still in FONT_OBJLIST of the entity, we can't
5075 close it now. Perhaps, we should manage font-objects
5076 by `reference-count'. */
5077 font_close_object (f
, font_object
);
5084 #define BUILD_STYLE_TABLE(TBL) \
5085 build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry))
5088 build_style_table (entry
, nelement
)
5089 struct table_entry
*entry
;
5093 Lisp_Object table
, elt
;
5095 table
= Fmake_vector (make_number (nelement
), Qnil
);
5096 for (i
= 0; i
< nelement
; i
++)
5098 for (j
= 0; entry
[i
].names
[j
]; j
++);
5099 elt
= Fmake_vector (make_number (j
+ 1), Qnil
);
5100 ASET (elt
, 0, make_number (entry
[i
].numeric
));
5101 for (j
= 0; entry
[i
].names
[j
]; j
++)
5102 ASET (elt
, j
+ 1, intern_c_string (entry
[i
].names
[j
]));
5103 ASET (table
, i
, elt
);
5108 Lisp_Object Vfont_log
;
5110 /* The deferred font-log data of the form [ACTION ARG RESULT].
5111 If ACTION is not nil, that is added to the log when font_add_log is
5112 called next time. At that time, ACTION is set back to nil. */
5113 static Lisp_Object Vfont_log_deferred
;
5115 /* Prepend the font-related logging data in Vfont_log if it is not
5116 `t'. ACTION describes a kind of font-related action (e.g. listing,
5117 opening), ARG is the argument for the action, and RESULT is the
5118 result of the action. */
5120 font_add_log (action
, arg
, result
)
5122 Lisp_Object arg
, result
;
5124 Lisp_Object tail
, val
;
5127 if (EQ (Vfont_log
, Qt
))
5129 if (STRINGP (AREF (Vfont_log_deferred
, 0)))
5131 char *str
= (char *) SDATA (AREF (Vfont_log_deferred
, 0));
5133 ASET (Vfont_log_deferred
, 0, Qnil
);
5134 font_add_log (str
, AREF (Vfont_log_deferred
, 1),
5135 AREF (Vfont_log_deferred
, 2));
5140 Lisp_Object tail
, elt
;
5141 Lisp_Object equalstr
= build_string ("=");
5143 val
= Ffont_xlfd_name (arg
, Qt
);
5144 for (tail
= AREF (arg
, FONT_EXTRA_INDEX
); CONSP (tail
);
5148 if (EQ (XCAR (elt
), QCscript
)
5149 && SYMBOLP (XCDR (elt
)))
5150 val
= concat3 (val
, SYMBOL_NAME (QCscript
),
5151 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
5152 else if (EQ (XCAR (elt
), QClang
)
5153 && SYMBOLP (XCDR (elt
)))
5154 val
= concat3 (val
, SYMBOL_NAME (QClang
),
5155 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
5156 else if (EQ (XCAR (elt
), QCotf
)
5157 && CONSP (XCDR (elt
)) && SYMBOLP (XCAR (XCDR (elt
))))
5158 val
= concat3 (val
, SYMBOL_NAME (QCotf
),
5160 SYMBOL_NAME (XCAR (XCDR (elt
)))));
5166 && VECTORP (XCAR (result
))
5167 && ASIZE (XCAR (result
)) > 0
5168 && FONTP (AREF (XCAR (result
), 0)))
5169 result
= font_vconcat_entity_vectors (result
);
5172 val
= Ffont_xlfd_name (result
, Qt
);
5173 if (! FONT_SPEC_P (result
))
5174 val
= concat3 (SYMBOL_NAME (AREF (result
, FONT_TYPE_INDEX
)),
5175 build_string (":"), val
);
5178 else if (CONSP (result
))
5180 result
= Fcopy_sequence (result
);
5181 for (tail
= result
; CONSP (tail
); tail
= XCDR (tail
))
5185 val
= Ffont_xlfd_name (val
, Qt
);
5186 XSETCAR (tail
, val
);
5189 else if (VECTORP (result
))
5191 result
= Fcopy_sequence (result
);
5192 for (i
= 0; i
< ASIZE (result
); i
++)
5194 val
= AREF (result
, i
);
5196 val
= Ffont_xlfd_name (val
, Qt
);
5197 ASET (result
, i
, val
);
5200 Vfont_log
= Fcons (list3 (intern (action
), arg
, result
), Vfont_log
);
5203 /* Record a font-related logging data to be added to Vfont_log when
5204 font_add_log is called next time. ACTION, ARG, RESULT are the same
5208 font_deferred_log (action
, arg
, result
)
5210 Lisp_Object arg
, result
;
5212 if (EQ (Vfont_log
, Qt
))
5214 ASET (Vfont_log_deferred
, 0, build_string (action
));
5215 ASET (Vfont_log_deferred
, 1, arg
);
5216 ASET (Vfont_log_deferred
, 2, result
);
5219 extern void syms_of_ftfont
P_ (());
5220 extern void syms_of_xfont
P_ (());
5221 extern void syms_of_xftfont
P_ (());
5222 extern void syms_of_ftxfont
P_ (());
5223 extern void syms_of_bdffont
P_ (());
5224 extern void syms_of_w32font
P_ (());
5225 extern void syms_of_atmfont
P_ (());
5226 extern void syms_of_nsfont
P_ (());
5231 sort_shift_bits
[FONT_TYPE_INDEX
] = 0;
5232 sort_shift_bits
[FONT_SLANT_INDEX
] = 2;
5233 sort_shift_bits
[FONT_WEIGHT_INDEX
] = 9;
5234 sort_shift_bits
[FONT_SIZE_INDEX
] = 16;
5235 sort_shift_bits
[FONT_WIDTH_INDEX
] = 23;
5236 /* Note that the other elements in sort_shift_bits are not used. */
5238 staticpro (&font_charset_alist
);
5239 font_charset_alist
= Qnil
;
5241 DEFSYM (Qopentype
, "opentype");
5243 DEFSYM (Qascii_0
, "ascii-0");
5244 DEFSYM (Qiso8859_1
, "iso8859-1");
5245 DEFSYM (Qiso10646_1
, "iso10646-1");
5246 DEFSYM (Qunicode_bmp
, "unicode-bmp");
5247 DEFSYM (Qunicode_sip
, "unicode-sip");
5251 DEFSYM (QCotf
, ":otf");
5252 DEFSYM (QClang
, ":lang");
5253 DEFSYM (QCscript
, ":script");
5254 DEFSYM (QCantialias
, ":antialias");
5256 DEFSYM (QCfoundry
, ":foundry");
5257 DEFSYM (QCadstyle
, ":adstyle");
5258 DEFSYM (QCregistry
, ":registry");
5259 DEFSYM (QCspacing
, ":spacing");
5260 DEFSYM (QCdpi
, ":dpi");
5261 DEFSYM (QCscalable
, ":scalable");
5262 DEFSYM (QCavgwidth
, ":avgwidth");
5263 DEFSYM (QCfont_entity
, ":font-entity");
5264 DEFSYM (QCfc_unknown_spec
, ":fc-unknown-spec");
5274 DEFSYM (QCuser_spec
, "user-spec");
5276 staticpro (&null_vector
);
5277 null_vector
= Fmake_vector (make_number (0), Qnil
);
5279 staticpro (&scratch_font_spec
);
5280 scratch_font_spec
= Ffont_spec (0, NULL
);
5281 staticpro (&scratch_font_prefer
);
5282 scratch_font_prefer
= Ffont_spec (0, NULL
);
5284 staticpro (&Vfont_log_deferred
);
5285 Vfont_log_deferred
= Fmake_vector (make_number (3), Qnil
);
5289 staticpro (&otf_list
);
5291 #endif /* HAVE_LIBOTF */
5295 defsubr (&Sfont_spec
);
5296 defsubr (&Sfont_get
);
5297 #ifdef HAVE_WINDOW_SYSTEM
5298 defsubr (&Sfont_face_attributes
);
5300 defsubr (&Sfont_put
);
5301 defsubr (&Slist_fonts
);
5302 defsubr (&Sfont_family_list
);
5303 defsubr (&Sfind_font
);
5304 defsubr (&Sfont_xlfd_name
);
5305 defsubr (&Sclear_font_cache
);
5306 defsubr (&Sfont_shape_gstring
);
5307 defsubr (&Sfont_variation_glyphs
);
5309 defsubr (&Sfont_drive_otf
);
5310 defsubr (&Sfont_otf_alternates
);
5314 defsubr (&Sopen_font
);
5315 defsubr (&Sclose_font
);
5316 defsubr (&Squery_font
);
5317 defsubr (&Sget_font_glyphs
);
5318 defsubr (&Sfont_match_p
);
5319 defsubr (&Sfont_at
);
5321 defsubr (&Sdraw_string
);
5323 #endif /* FONT_DEBUG */
5324 #ifdef HAVE_WINDOW_SYSTEM
5325 defsubr (&Sfont_info
);
5328 DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist
,
5330 Alist of fontname patterns vs the corresponding encoding and repertory info.
5331 Each element looks like (REGEXP . (ENCODING . REPERTORY)),
5332 where ENCODING is a charset or a char-table,
5333 and REPERTORY is a charset, a char-table, or nil.
5335 If ENCODING and REPERTORY are the same, the element can have the form
5336 \(REGEXP . ENCODING).
5338 ENCODING is for converting a character to a glyph code of the font.
5339 If ENCODING is a charset, encoding a character by the charset gives
5340 the corresponding glyph code. If ENCODING is a char-table, looking up
5341 the table by a character gives the corresponding glyph code.
5343 REPERTORY specifies a repertory of characters supported by the font.
5344 If REPERTORY is a charset, all characters beloging to the charset are
5345 supported. If REPERTORY is a char-table, all characters who have a
5346 non-nil value in the table are supported. If REPERTORY is nil, Emacs
5347 gets the repertory information by an opened font and ENCODING. */);
5348 Vfont_encoding_alist
= Qnil
;
5350 DEFVAR_LISP_NOPRO ("font-weight-table", &Vfont_weight_table
,
5351 doc
: /* Vector of valid font weight values.
5352 Each element has the form:
5353 [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...]
5354 NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */);
5355 Vfont_weight_table
= BUILD_STYLE_TABLE (weight_table
);
5357 DEFVAR_LISP_NOPRO ("font-slant-table", &Vfont_slant_table
,
5358 doc
: /* Vector of font slant symbols vs the corresponding numeric values.
5359 See `font-weight-table' for the format of the vector. */);
5360 Vfont_slant_table
= BUILD_STYLE_TABLE (slant_table
);
5362 DEFVAR_LISP_NOPRO ("font-width-table", &Vfont_width_table
,
5363 doc
: /* Alist of font width symbols vs the corresponding numeric values.
5364 See `font-weight-table' for the format of the vector. */);
5365 Vfont_width_table
= BUILD_STYLE_TABLE (width_table
);
5367 staticpro (&font_style_table
);
5368 font_style_table
= Fmake_vector (make_number (3), Qnil
);
5369 ASET (font_style_table
, 0, Vfont_weight_table
);
5370 ASET (font_style_table
, 1, Vfont_slant_table
);
5371 ASET (font_style_table
, 2, Vfont_width_table
);
5373 DEFVAR_LISP ("font-log", &Vfont_log
, doc
: /*
5374 *Logging list of font related actions and results.
5375 The value t means to suppress the logging.
5376 The initial value is set to nil if the environment variable
5377 EMACS_FONT_LOG is set. Otherwise, it is set to t. */);
5380 #ifdef HAVE_WINDOW_SYSTEM
5381 #ifdef HAVE_FREETYPE
5383 #ifdef HAVE_X_WINDOWS
5388 #endif /* HAVE_XFT */
5389 #endif /* HAVE_X_WINDOWS */
5390 #else /* not HAVE_FREETYPE */
5391 #ifdef HAVE_X_WINDOWS
5393 #endif /* HAVE_X_WINDOWS */
5394 #endif /* not HAVE_FREETYPE */
5397 #endif /* HAVE_BDFFONT */
5400 #endif /* WINDOWSNT */
5403 #endif /* HAVE_NS */
5404 #endif /* HAVE_WINDOW_SYSTEM */
5410 Vfont_log
= egetenv ("EMACS_FONT_LOG") ? Qnil
: Qt
;
5413 /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846
5414 (do not change this comment) */