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/>. */
31 #include "dispextern.h"
33 #include "character.h"
34 #include "composite.h"
40 #endif /* HAVE_X_WINDOWS */
44 #endif /* HAVE_NTGUI */
51 extern Lisp_Object Qfontsize
;
54 Lisp_Object Qopentype
;
56 /* Important character set strings. */
57 Lisp_Object Qascii_0
, Qiso8859_1
, Qiso10646_1
, Qunicode_bmp
, Qunicode_sip
;
60 #define DEFAULT_ENCODING Qiso10646_1
62 #define DEFAULT_ENCODING Qiso8859_1
65 /* Unicode category `Cf'. */
66 static Lisp_Object QCf
;
68 /* Special vector of zero length. This is repeatedly used by (struct
69 font_driver *)->list when a specified font is not found. */
70 static Lisp_Object null_vector
;
72 static Lisp_Object Vfont_weight_table
, Vfont_slant_table
, Vfont_width_table
;
74 /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */
75 static Lisp_Object font_style_table
;
77 /* Structure used for tables mapping weight, slant, and width numeric
78 values and their names. */
83 /* The first one is a valid name as a face attribute.
84 The second one (if any) is a typical name in XLFD field. */
89 /* Table of weight numeric values and their names. This table must be
90 sorted by numeric values in ascending order. */
92 static struct table_entry weight_table
[] =
95 { 20, { "ultra-light", "ultralight" }},
96 { 40, { "extra-light", "extralight" }},
98 { 75, { "semi-light", "semilight", "demilight", "book" }},
99 { 100, { "normal", "medium", "regular", "unspecified" }},
100 { 180, { "semi-bold", "semibold", "demibold", "demi" }},
102 { 205, { "extra-bold", "extrabold" }},
103 { 210, { "ultra-bold", "ultrabold", "black" }}
106 /* Table of slant numeric values and their names. This table must be
107 sorted by numeric values in ascending order. */
109 static struct table_entry slant_table
[] =
111 { 0, { "reverse-oblique", "ro" }},
112 { 10, { "reverse-italic", "ri" }},
113 { 100, { "normal", "r", "unspecified" }},
114 { 200, { "italic" ,"i", "ot" }},
115 { 210, { "oblique", "o" }}
118 /* Table of width numeric values and their names. This table must be
119 sorted by numeric values in ascending order. */
121 static struct table_entry width_table
[] =
123 { 50, { "ultra-condensed", "ultracondensed" }},
124 { 63, { "extra-condensed", "extracondensed" }},
125 { 75, { "condensed", "compressed", "narrow" }},
126 { 87, { "semi-condensed", "semicondensed", "demicondensed" }},
127 { 100, { "normal", "medium", "regular", "unspecified" }},
128 { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }},
129 { 125, { "expanded" }},
130 { 150, { "extra-expanded", "extraexpanded" }},
131 { 200, { "ultra-expanded", "ultraexpanded", "wide" }}
134 extern Lisp_Object Qnormal
;
136 /* Symbols representing keys of normal font properties. */
137 extern Lisp_Object QCtype
, QCfamily
, QCweight
, QCslant
, QCwidth
;
138 extern Lisp_Object QCheight
, QCsize
, QCname
;
140 Lisp_Object QCfoundry
, QCadstyle
, QCregistry
;
141 /* Symbols representing keys of font extra info. */
142 Lisp_Object QCspacing
, QCdpi
, QCscalable
, QCotf
, QClang
, QCscript
, QCavgwidth
;
143 Lisp_Object QCantialias
, QCfont_entity
, QCfc_unknown_spec
;
144 /* Symbols representing values of font spacing property. */
145 Lisp_Object Qc
, Qm
, Qp
, Qd
;
147 Lisp_Object Vfont_encoding_alist
;
149 /* Alist of font registry symbol and the corresponding charsets
150 information. The information is retrieved from
151 Vfont_encoding_alist on demand.
153 Eash element has the form:
154 (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID))
158 In the former form, ENCODING-CHARSET-ID is an ID of a charset that
159 encodes a character code to a glyph code of a font, and
160 REPERTORY-CHARSET-ID is an ID of a charset that tells if a
161 character is supported by a font.
163 The latter form means that the information for REGISTRY couldn't be
165 static Lisp_Object font_charset_alist
;
167 /* List of all font drivers. Each font-backend (XXXfont.c) calls
168 register_font_driver in syms_of_XXXfont to register its font-driver
170 static struct font_driver_list
*font_driver_list
;
174 /* Creaters of font-related Lisp object. */
179 Lisp_Object font_spec
;
180 struct font_spec
*spec
181 = ((struct font_spec
*)
182 allocate_pseudovector (VECSIZE (struct font_spec
),
183 FONT_SPEC_MAX
, PVEC_FONT
));
184 XSETFONT (font_spec
, spec
);
191 Lisp_Object font_entity
;
192 struct font_entity
*entity
193 = ((struct font_entity
*)
194 allocate_pseudovector (VECSIZE (struct font_entity
),
195 FONT_ENTITY_MAX
, PVEC_FONT
));
196 XSETFONT (font_entity
, entity
);
200 /* Create a font-object whose structure size is SIZE. If ENTITY is
201 not nil, copy properties from ENTITY to the font-object. If
202 PIXELSIZE is positive, set the `size' property to PIXELSIZE. */
204 font_make_object (size
, entity
, pixelsize
)
209 Lisp_Object font_object
;
211 = (struct font
*) allocate_pseudovector (size
, FONT_OBJECT_MAX
, PVEC_FONT
);
214 XSETFONT (font_object
, font
);
218 for (i
= 1; i
< FONT_SPEC_MAX
; i
++)
219 font
->props
[i
] = AREF (entity
, i
);
220 if (! NILP (AREF (entity
, FONT_EXTRA_INDEX
)))
221 font
->props
[FONT_EXTRA_INDEX
]
222 = Fcopy_sequence (AREF (entity
, FONT_EXTRA_INDEX
));
225 font
->props
[FONT_SIZE_INDEX
] = make_number (pixelsize
);
231 static int font_pixel_size
P_ ((FRAME_PTR f
, Lisp_Object
));
232 static Lisp_Object font_open_entity
P_ ((FRAME_PTR
, Lisp_Object
, int));
233 static Lisp_Object font_matching_entity
P_ ((FRAME_PTR
, Lisp_Object
*,
236 /* Number of registered font drivers. */
237 static int num_font_drivers
;
240 /* Return a Lispy value of a font property value at STR and LEN bytes.
241 If STR is "*", it returns nil.
242 If FORCE_SYMBOL is zero and all characters in STR are digits, it
243 returns an integer. Otherwise, it returns a symbol interned from
247 font_intern_prop (str
, len
, force_symbol
)
257 if (len
== 1 && *str
== '*')
259 if (!force_symbol
&& len
>=1 && isdigit (*str
))
261 for (i
= 1; i
< len
; i
++)
262 if (! isdigit (str
[i
]))
265 return make_number (atoi (str
));
268 /* The following code is copied from the function intern (in
269 lread.c), and modified to suite our purpose. */
271 if (!VECTORP (obarray
) || XVECTOR (obarray
)->size
== 0)
272 obarray
= check_obarray (obarray
);
273 parse_str_as_multibyte (str
, len
, &nchars
, &nbytes
);
274 if (len
== nchars
|| len
!= nbytes
)
275 /* CONTENTS contains no multibyte sequences or contains an invalid
276 multibyte sequence. We'll make a unibyte string. */
277 tem
= oblookup (obarray
, str
, len
, len
);
279 tem
= oblookup (obarray
, str
, nchars
, len
);
282 if (len
== nchars
|| len
!= nbytes
)
283 tem
= make_unibyte_string (str
, len
);
285 tem
= make_multibyte_string (str
, nchars
, len
);
286 return Fintern (tem
, obarray
);
289 /* Return a pixel size of font-spec SPEC on frame F. */
292 font_pixel_size (f
, spec
)
296 #ifdef HAVE_WINDOW_SYSTEM
297 Lisp_Object size
= AREF (spec
, FONT_SIZE_INDEX
);
306 font_assert (FLOATP (size
));
307 point_size
= XFLOAT_DATA (size
);
308 val
= AREF (spec
, FONT_DPI_INDEX
);
313 pixel_size
= POINT_TO_PIXEL (point_size
, dpi
);
321 /* Return a value of PROP's VAL (symbol or integer) to be stored in a
322 font vector. If VAL is not valid (i.e. not registered in
323 font_style_table), return -1 if NOERROR is zero, and return a
324 proper index if NOERROR is nonzero. In that case, register VAL in
325 font_style_table if VAL is a symbol, and return a closest index if
326 VAL is an integer. */
329 font_style_to_value (prop
, val
, noerror
)
330 enum font_property_index prop
;
334 Lisp_Object table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
335 int len
= ASIZE (table
);
341 Lisp_Object args
[2], elt
;
343 /* At first try exact match. */
344 for (i
= 0; i
< len
; i
++)
345 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
346 if (EQ (val
, AREF (AREF (table
, i
), j
)))
347 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
348 | (i
<< 4) | (j
- 1));
349 /* Try also with case-folding match. */
350 s
= SDATA (SYMBOL_NAME (val
));
351 for (i
= 0; i
< len
; i
++)
352 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
354 elt
= AREF (AREF (table
, i
), j
);
355 if (xstrcasecmp (s
, SDATA (SYMBOL_NAME (elt
))) == 0)
356 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
357 | (i
<< 4) | (j
- 1));
363 elt
= Fmake_vector (make_number (2), make_number (100));
366 args
[1] = Fmake_vector (make_number (1), elt
);
367 ASET (font_style_table
, prop
- FONT_WEIGHT_INDEX
, Fvconcat (2, args
));
368 return (100 << 8) | (i
<< 4);
373 int numeric
= XINT (val
);
375 for (i
= 0, last_n
= -1; i
< len
; i
++)
377 int n
= XINT (AREF (AREF (table
, i
), 0));
380 return (n
<< 8) | (i
<< 4);
385 return ((i
== 0 || n
- numeric
< numeric
- last_n
)
386 ? (n
<< 8) | (i
<< 4): (last_n
<< 8 | ((i
- 1) << 4)));
392 return ((last_n
<< 8) | ((i
- 1) << 4));
397 font_style_symbolic (font
, prop
, for_face
)
399 enum font_property_index prop
;
402 Lisp_Object val
= AREF (font
, prop
);
403 Lisp_Object table
, elt
;
408 table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
409 i
= XINT (val
) & 0xFF;
410 font_assert (((i
>> 4) & 0xF) < ASIZE (table
));
411 elt
= AREF (table
, ((i
>> 4) & 0xF));
412 font_assert ((i
& 0xF) + 1 < ASIZE (elt
));
413 return (for_face
? AREF (elt
, 1) : AREF (elt
, (i
& 0xF) + 1));
416 extern Lisp_Object Vface_alternative_font_family_alist
;
418 extern Lisp_Object find_font_encoding
P_ ((Lisp_Object
));
421 /* Return ENCODING or a cons of ENCODING and REPERTORY of the font
422 FONTNAME. ENCODING is a charset symbol that specifies the encoding
423 of the font. REPERTORY is a charset symbol or nil. */
426 find_font_encoding (fontname
)
427 Lisp_Object fontname
;
429 Lisp_Object tail
, elt
;
431 for (tail
= Vfont_encoding_alist
; CONSP (tail
); tail
= XCDR (tail
))
435 && STRINGP (XCAR (elt
))
436 && fast_string_match_ignore_case (XCAR (elt
), fontname
) >= 0
437 && (SYMBOLP (XCDR (elt
))
438 ? CHARSETP (XCDR (elt
))
439 : CONSP (XCDR (elt
)) && CHARSETP (XCAR (XCDR (elt
)))))
445 /* Return encoding charset and repertory charset for REGISTRY in
446 ENCODING and REPERTORY correspondingly. If correct information for
447 REGISTRY is available, return 0. Otherwise return -1. */
450 font_registry_charsets (registry
, encoding
, repertory
)
451 Lisp_Object registry
;
452 struct charset
**encoding
, **repertory
;
455 int encoding_id
, repertory_id
;
457 val
= Fassoc_string (registry
, font_charset_alist
, Qt
);
463 encoding_id
= XINT (XCAR (val
));
464 repertory_id
= XINT (XCDR (val
));
468 val
= find_font_encoding (SYMBOL_NAME (registry
));
469 if (SYMBOLP (val
) && CHARSETP (val
))
471 encoding_id
= repertory_id
= XINT (CHARSET_SYMBOL_ID (val
));
473 else if (CONSP (val
))
475 if (! CHARSETP (XCAR (val
)))
477 encoding_id
= XINT (CHARSET_SYMBOL_ID (XCAR (val
)));
478 if (NILP (XCDR (val
)))
482 if (! CHARSETP (XCDR (val
)))
484 repertory_id
= XINT (CHARSET_SYMBOL_ID (XCDR (val
)));
489 val
= Fcons (make_number (encoding_id
), make_number (repertory_id
));
491 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, val
), Qnil
));
495 *encoding
= CHARSET_FROM_ID (encoding_id
);
497 *repertory
= repertory_id
>= 0 ? CHARSET_FROM_ID (repertory_id
) : NULL
;
502 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, Qnil
), Qnil
));
507 /* Font property value validaters. See the comment of
508 font_property_table for the meaning of the arguments. */
510 static Lisp_Object font_prop_validate
P_ ((int, Lisp_Object
, Lisp_Object
));
511 static Lisp_Object font_prop_validate_symbol
P_ ((Lisp_Object
, Lisp_Object
));
512 static Lisp_Object font_prop_validate_style
P_ ((Lisp_Object
, Lisp_Object
));
513 static Lisp_Object font_prop_validate_non_neg
P_ ((Lisp_Object
, Lisp_Object
));
514 static Lisp_Object font_prop_validate_spacing
P_ ((Lisp_Object
, Lisp_Object
));
515 static int get_font_prop_index
P_ ((Lisp_Object
));
518 font_prop_validate_symbol (prop
, val
)
519 Lisp_Object prop
, val
;
522 val
= Fintern (val
, Qnil
);
525 else if (EQ (prop
, QCregistry
))
526 val
= Fintern (Fdowncase (SYMBOL_NAME (val
)), Qnil
);
532 font_prop_validate_style (style
, val
)
533 Lisp_Object style
, val
;
535 enum font_property_index prop
= (EQ (style
, QCweight
) ? FONT_WEIGHT_INDEX
536 : EQ (style
, QCslant
) ? FONT_SLANT_INDEX
543 >= ASIZE (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
)))
547 Lisp_Object elt
= AREF (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
), (n
>> 4) & 0xF);
549 if ((n
& 0xF) + 1 >= ASIZE (elt
))
551 else if (XINT (AREF (elt
, 0)) != (n
>> 8))
555 else if (SYMBOLP (val
))
557 int n
= font_style_to_value (prop
, val
, 0);
559 val
= n
>= 0 ? make_number (n
) : Qerror
;
567 font_prop_validate_non_neg (prop
, val
)
568 Lisp_Object prop
, val
;
570 return (NATNUMP (val
) || (FLOATP (val
) && XFLOAT_DATA (val
) >= 0)
575 font_prop_validate_spacing (prop
, val
)
576 Lisp_Object prop
, val
;
578 if (NILP (val
) || (NATNUMP (val
) && XINT (val
) <= FONT_SPACING_CHARCELL
))
580 if (SYMBOLP (val
) && SBYTES (SYMBOL_NAME (val
)) == 1)
582 char spacing
= SDATA (SYMBOL_NAME (val
))[0];
584 if (spacing
== 'c' || spacing
== 'C')
585 return make_number (FONT_SPACING_CHARCELL
);
586 if (spacing
== 'm' || spacing
== 'M')
587 return make_number (FONT_SPACING_MONO
);
588 if (spacing
== 'p' || spacing
== 'P')
589 return make_number (FONT_SPACING_PROPORTIONAL
);
590 if (spacing
== 'd' || spacing
== 'D')
591 return make_number (FONT_SPACING_DUAL
);
597 font_prop_validate_otf (prop
, val
)
598 Lisp_Object prop
, val
;
600 Lisp_Object tail
, tmp
;
603 /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]])
604 GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil
605 GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */
608 if (! SYMBOLP (XCAR (val
)))
613 if (! CONSP (tail
) || ! SYMBOLP (XCAR (val
)))
615 for (i
= 0; i
< 2; i
++)
622 for (tmp
= XCAR (tail
); CONSP (tmp
); tmp
= XCDR (tmp
))
623 if (! SYMBOLP (XCAR (tmp
)))
631 /* Structure of known font property keys and validater of the
635 /* Pointer to the key symbol. */
637 /* Function to validate PROP's value VAL, or NULL if any value is
638 ok. The value is VAL or its regularized value if VAL is valid,
639 and Qerror if not. */
640 Lisp_Object (*validater
) P_ ((Lisp_Object prop
, Lisp_Object val
));
641 } font_property_table
[] =
642 { { &QCtype
, font_prop_validate_symbol
},
643 { &QCfoundry
, font_prop_validate_symbol
},
644 { &QCfamily
, font_prop_validate_symbol
},
645 { &QCadstyle
, font_prop_validate_symbol
},
646 { &QCregistry
, font_prop_validate_symbol
},
647 { &QCweight
, font_prop_validate_style
},
648 { &QCslant
, font_prop_validate_style
},
649 { &QCwidth
, font_prop_validate_style
},
650 { &QCsize
, font_prop_validate_non_neg
},
651 { &QCdpi
, font_prop_validate_non_neg
},
652 { &QCspacing
, font_prop_validate_spacing
},
653 { &QCavgwidth
, font_prop_validate_non_neg
},
654 /* The order of the above entries must match with enum
655 font_property_index. */
656 { &QClang
, font_prop_validate_symbol
},
657 { &QCscript
, font_prop_validate_symbol
},
658 { &QCotf
, font_prop_validate_otf
}
661 /* Size (number of elements) of the above table. */
662 #define FONT_PROPERTY_TABLE_SIZE \
663 ((sizeof font_property_table) / (sizeof *font_property_table))
665 /* Return an index number of font property KEY or -1 if KEY is not an
666 already known property. */
669 get_font_prop_index (key
)
674 for (i
= 0; i
< FONT_PROPERTY_TABLE_SIZE
; i
++)
675 if (EQ (key
, *font_property_table
[i
].key
))
680 /* Validate the font property. The property key is specified by the
681 symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid,
682 signal an error. The value is VAL or the regularized one. */
685 font_prop_validate (idx
, prop
, val
)
687 Lisp_Object prop
, val
;
689 Lisp_Object validated
;
694 prop
= *font_property_table
[idx
].key
;
697 idx
= get_font_prop_index (prop
);
701 validated
= (font_property_table
[idx
].validater
) (prop
, val
);
702 if (EQ (validated
, Qerror
))
703 signal_error ("invalid font property", Fcons (prop
, val
));
708 /* Store VAL as a value of extra font property PROP in FONT while
709 keeping the sorting order. Don't check the validity of VAL. */
712 font_put_extra (font
, prop
, val
)
713 Lisp_Object font
, prop
, val
;
715 Lisp_Object extra
= AREF (font
, FONT_EXTRA_INDEX
);
716 Lisp_Object slot
= (NILP (extra
) ? Qnil
: assq_no_quit (prop
, extra
));
720 Lisp_Object prev
= Qnil
;
725 && NILP (Fstring_lessp (prop
, XCAR (XCAR (extra
)))))
726 prev
= extra
, extra
= XCDR (extra
);
728 ASET (font
, FONT_EXTRA_INDEX
, Fcons (Fcons (prop
, val
), extra
));
730 XSETCDR (prev
, Fcons (Fcons (prop
, val
), extra
));
735 ASET (font
, FONT_EXTRA_INDEX
, Fdelq (slot
, extra
));
740 /* Font name parser and unparser */
742 static int parse_matrix
P_ ((char *));
743 static int font_expand_wildcards
P_ ((Lisp_Object
*, int));
744 static int font_parse_name
P_ ((char *, Lisp_Object
));
746 /* An enumerator for each field of an XLFD font name. */
747 enum xlfd_field_index
766 /* An enumerator for mask bit corresponding to each XLFD field. */
769 XLFD_FOUNDRY_MASK
= 0x0001,
770 XLFD_FAMILY_MASK
= 0x0002,
771 XLFD_WEIGHT_MASK
= 0x0004,
772 XLFD_SLANT_MASK
= 0x0008,
773 XLFD_SWIDTH_MASK
= 0x0010,
774 XLFD_ADSTYLE_MASK
= 0x0020,
775 XLFD_PIXEL_MASK
= 0x0040,
776 XLFD_POINT_MASK
= 0x0080,
777 XLFD_RESX_MASK
= 0x0100,
778 XLFD_RESY_MASK
= 0x0200,
779 XLFD_SPACING_MASK
= 0x0400,
780 XLFD_AVGWIDTH_MASK
= 0x0800,
781 XLFD_REGISTRY_MASK
= 0x1000,
782 XLFD_ENCODING_MASK
= 0x2000
786 /* Parse P pointing the pixel/point size field of the form
787 `[A B C D]' which specifies a transformation matrix:
793 by which all glyphs of the font are transformed. The spec says
794 that scalar value N for the pixel/point size is equivalent to:
795 A = N * resx/resy, B = C = 0, D = N.
797 Return the scalar value N if the form is valid. Otherwise return
808 for (i
= 0, p
++; i
< 4 && *p
&& *p
!= ']'; i
++)
811 matrix
[i
] = - strtod (p
+ 1, &end
);
813 matrix
[i
] = strtod (p
, &end
);
816 return (i
== 4 ? (int) matrix
[3] : -1);
819 /* Expand a wildcard field in FIELD (the first N fields are filled) to
820 multiple fields to fill in all 14 XLFD fields while restring a
821 field position by its contents. */
824 font_expand_wildcards (field
, n
)
825 Lisp_Object field
[XLFD_LAST_INDEX
];
829 Lisp_Object tmp
[XLFD_LAST_INDEX
];
830 /* Array of information about where this element can go. Nth
831 element is for Nth element of FIELD. */
833 /* Minimum possible field. */
835 /* Maxinum possible field. */
837 /* Bit mask of possible field. Nth bit corresponds to Nth field. */
839 } range
[XLFD_LAST_INDEX
];
841 int range_from
, range_to
;
844 #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \
845 | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK)
846 #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK)
847 #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \
848 | XLFD_AVGWIDTH_MASK)
849 #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK)
851 /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th
852 field. The value is shifted to left one bit by one in the
854 for (i
= 0, range_mask
= 0; i
<= 14 - n
; i
++)
855 range_mask
= (range_mask
<< 1) | 1;
857 /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a
858 position-based retriction for FIELD[I]. */
859 for (i
= 0, range_from
= 0, range_to
= 14 - n
; i
< n
;
860 i
++, range_from
++, range_to
++, range_mask
<<= 1)
862 Lisp_Object val
= field
[i
];
868 range
[i
].from
= range_from
;
869 range
[i
].to
= range_to
;
870 range
[i
].mask
= range_mask
;
874 /* The triplet FROM, TO, and MASK is a value-based
875 retriction for FIELD[I]. */
881 int numeric
= XINT (val
);
884 from
= to
= XLFD_ENCODING_INDEX
,
885 mask
= XLFD_ENCODING_MASK
;
886 else if (numeric
== 0)
887 from
= XLFD_PIXEL_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
888 mask
= XLFD_PIXEL_MASK
| XLFD_LARGENUM_MASK
;
889 else if (numeric
<= 48)
890 from
= to
= XLFD_PIXEL_INDEX
,
891 mask
= XLFD_PIXEL_MASK
;
893 from
= XLFD_POINT_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
894 mask
= XLFD_LARGENUM_MASK
;
896 else if (SBYTES (SYMBOL_NAME (val
)) == 0)
897 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ADSTYLE_INDEX
,
898 mask
= XLFD_NULL_MASK
;
900 from
= to
= XLFD_FOUNDRY_INDEX
, mask
= XLFD_FOUNDRY_MASK
;
903 Lisp_Object name
= SYMBOL_NAME (val
);
905 if (SDATA (name
)[SBYTES (name
) - 1] == '*')
906 from
= XLFD_REGISTRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
907 mask
= XLFD_REGENC_MASK
;
909 from
= to
= XLFD_ENCODING_INDEX
,
910 mask
= XLFD_ENCODING_MASK
;
912 else if (range_from
<= XLFD_WEIGHT_INDEX
913 && range_to
>= XLFD_WEIGHT_INDEX
914 && FONT_WEIGHT_NAME_NUMERIC (val
) >= 0)
915 from
= to
= XLFD_WEIGHT_INDEX
, mask
= XLFD_WEIGHT_MASK
;
916 else if (range_from
<= XLFD_SLANT_INDEX
917 && range_to
>= XLFD_SLANT_INDEX
918 && FONT_SLANT_NAME_NUMERIC (val
) >= 0)
919 from
= to
= XLFD_SLANT_INDEX
, mask
= XLFD_SLANT_MASK
;
920 else if (range_from
<= XLFD_SWIDTH_INDEX
921 && range_to
>= XLFD_SWIDTH_INDEX
922 && FONT_WIDTH_NAME_NUMERIC (val
) >= 0)
923 from
= to
= XLFD_SWIDTH_INDEX
, mask
= XLFD_SWIDTH_MASK
;
926 if (EQ (val
, Qc
) || EQ (val
, Qm
) || EQ (val
, Qp
) || EQ (val
, Qd
))
927 from
= to
= XLFD_SPACING_INDEX
, mask
= XLFD_SPACING_MASK
;
929 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
930 mask
= XLFD_SYMBOL_MASK
;
933 /* Merge position-based and value-based restrictions. */
935 while (from
< range_from
)
936 mask
&= ~(1 << from
++);
937 while (from
< 14 && ! (mask
& (1 << from
)))
939 while (to
> range_to
)
940 mask
&= ~(1 << to
--);
941 while (to
>= 0 && ! (mask
& (1 << to
)))
945 range
[i
].from
= from
;
947 range
[i
].mask
= mask
;
949 if (from
> range_from
|| to
< range_to
)
951 /* The range is narrowed by value-based restrictions.
952 Reflect it to the other fields. */
954 /* Following fields should be after FROM. */
956 /* Preceding fields should be before TO. */
957 for (j
= i
- 1, from
--, to
--; j
>= 0; j
--, from
--, to
--)
959 /* Check FROM for non-wildcard field. */
960 if (! NILP (tmp
[j
]) && range
[j
].from
< from
)
962 while (range
[j
].from
< from
)
963 range
[j
].mask
&= ~(1 << range
[j
].from
++);
964 while (from
< 14 && ! (range
[j
].mask
& (1 << from
)))
966 range
[j
].from
= from
;
969 from
= range
[j
].from
;
970 if (range
[j
].to
> to
)
972 while (range
[j
].to
> to
)
973 range
[j
].mask
&= ~(1 << range
[j
].to
--);
974 while (to
>= 0 && ! (range
[j
].mask
& (1 << to
)))
987 /* Decide all fileds from restrictions in RANGE. */
988 for (i
= j
= 0; i
< n
; i
++)
990 if (j
< range
[i
].from
)
992 if (i
== 0 || ! NILP (tmp
[i
- 1]))
993 /* None of TMP[X] corresponds to Jth field. */
995 for (; j
< range
[i
].from
; j
++)
1000 if (! NILP (tmp
[n
- 1]) && j
< XLFD_REGISTRY_INDEX
)
1002 for (; j
< XLFD_LAST_INDEX
; j
++)
1004 if (INTEGERP (field
[XLFD_ENCODING_INDEX
]))
1005 field
[XLFD_ENCODING_INDEX
]
1006 = Fintern (Fnumber_to_string (field
[XLFD_ENCODING_INDEX
]), Qnil
);
1011 #ifdef ENABLE_CHECKING
1012 /* Match a 14-field XLFD pattern against a full XLFD font name. */
1014 font_match_xlfd (char *pattern
, char *name
)
1016 while (*pattern
&& *name
)
1018 if (*pattern
== *name
)
1020 else if (*pattern
== '*')
1021 if (*name
== pattern
[1])
1032 /* Make sure the font object matches the XLFD font name. */
1034 font_check_xlfd_parse (Lisp_Object font
, char *name
)
1036 char name_check
[256];
1037 font_unparse_xlfd (font
, 0, name_check
, 255);
1038 return font_match_xlfd (name_check
, name
);
1044 /* Parse NAME (null terminated) as XLFD and store information in FONT
1045 (font-spec or font-entity). Size property of FONT is set as
1047 specified XLFD fields FONT property
1048 --------------------- -------------
1049 PIXEL_SIZE PIXEL_SIZE (Lisp integer)
1050 POINT_SIZE and RESY calculated pixel size (Lisp integer)
1051 POINT_SIZE POINT_SIZE/10 (Lisp float)
1053 If NAME is successfully parsed, return 0. Otherwise return -1.
1055 FONT is usually a font-spec, but when this function is called from
1056 X font backend driver, it is a font-entity. In that case, NAME is
1057 a fully specified XLFD. */
1060 font_parse_xlfd (name
, font
)
1064 int len
= strlen (name
);
1066 char *f
[XLFD_LAST_INDEX
+ 1];
1070 if (len
> 255 || !len
)
1071 /* Maximum XLFD name length is 255. */
1073 /* Accept "*-.." as a fully specified XLFD. */
1074 if (name
[0] == '*' && (len
== 1 || name
[1] == '-'))
1075 i
= 1, f
[XLFD_FOUNDRY_INDEX
] = name
;
1078 for (p
= name
+ i
; *p
; p
++)
1082 if (i
== XLFD_LAST_INDEX
)
1087 #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0)
1088 #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1)
1090 if (i
== XLFD_LAST_INDEX
)
1092 /* Fully specified XLFD. */
1095 ASET (font
, FONT_FOUNDRY_INDEX
, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX
));
1096 ASET (font
, FONT_FAMILY_INDEX
, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX
));
1097 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1098 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1100 val
= INTERN_FIELD_SYM (i
);
1103 if ((n
= font_style_to_value (j
, INTERN_FIELD_SYM (i
), 0)) < 0)
1105 ASET (font
, j
, make_number (n
));
1108 ASET (font
, FONT_ADSTYLE_INDEX
, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX
));
1109 if (strcmp (f
[XLFD_REGISTRY_INDEX
], "*-*") == 0)
1110 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
1112 ASET (font
, FONT_REGISTRY_INDEX
,
1113 font_intern_prop (f
[XLFD_REGISTRY_INDEX
],
1114 f
[XLFD_LAST_INDEX
] - f
[XLFD_REGISTRY_INDEX
],
1116 p
= f
[XLFD_PIXEL_INDEX
];
1117 if (*p
== '[' && (pixel_size
= parse_matrix (p
)) >= 0)
1118 ASET (font
, FONT_SIZE_INDEX
, make_number (pixel_size
));
1121 val
= INTERN_FIELD (XLFD_PIXEL_INDEX
);
1123 ASET (font
, FONT_SIZE_INDEX
, val
);
1126 double point_size
= -1;
1128 font_assert (FONT_SPEC_P (font
));
1129 p
= f
[XLFD_POINT_INDEX
];
1131 point_size
= parse_matrix (p
);
1132 else if (isdigit (*p
))
1133 point_size
= atoi (p
), point_size
/= 10;
1134 if (point_size
>= 0)
1135 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1139 ASET (font
, FONT_DPI_INDEX
, INTERN_FIELD (XLFD_RESY_INDEX
));
1140 val
= INTERN_FIELD (XLFD_SPACING_INDEX
);
1143 val
= font_prop_validate_spacing (QCspacing
, val
);
1144 if (! INTEGERP (val
))
1146 ASET (font
, FONT_SPACING_INDEX
, val
);
1148 p
= f
[XLFD_AVGWIDTH_INDEX
];
1151 ASET (font
, FONT_AVGWIDTH_INDEX
,
1152 font_intern_prop (p
, f
[XLFD_REGISTRY_INDEX
] - 1 - p
, 0));
1156 int wild_card_found
= 0;
1157 Lisp_Object prop
[XLFD_LAST_INDEX
];
1159 if (FONT_ENTITY_P (font
))
1161 for (j
= 0; j
< i
; j
++)
1165 if (f
[j
][1] && f
[j
][1] != '-')
1168 wild_card_found
= 1;
1171 prop
[j
] = INTERN_FIELD (j
);
1173 prop
[j
] = font_intern_prop (f
[j
], f
[i
] - f
[j
], 0);
1175 if (! wild_card_found
)
1177 if (font_expand_wildcards (prop
, i
) < 0)
1180 ASET (font
, FONT_FOUNDRY_INDEX
, prop
[XLFD_FOUNDRY_INDEX
]);
1181 ASET (font
, FONT_FAMILY_INDEX
, prop
[XLFD_FAMILY_INDEX
]);
1182 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1183 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1184 if (! NILP (prop
[i
]))
1186 if ((n
= font_style_to_value (j
, prop
[i
], 1)) < 0)
1188 ASET (font
, j
, make_number (n
));
1190 ASET (font
, FONT_ADSTYLE_INDEX
, prop
[XLFD_ADSTYLE_INDEX
]);
1191 val
= prop
[XLFD_REGISTRY_INDEX
];
1194 val
= prop
[XLFD_ENCODING_INDEX
];
1196 val
= concat2 (build_string ("*-"), SYMBOL_NAME (val
));
1198 else if (NILP (prop
[XLFD_ENCODING_INDEX
]))
1199 val
= concat2 (SYMBOL_NAME (val
), build_string ("-*"));
1201 val
= concat3 (SYMBOL_NAME (val
), build_string ("-"),
1202 SYMBOL_NAME (prop
[XLFD_ENCODING_INDEX
]));
1204 ASET (font
, FONT_REGISTRY_INDEX
, Fintern (val
, Qnil
));
1206 if (INTEGERP (prop
[XLFD_PIXEL_INDEX
]))
1207 ASET (font
, FONT_SIZE_INDEX
, prop
[XLFD_PIXEL_INDEX
]);
1208 else if (INTEGERP (prop
[XLFD_POINT_INDEX
]))
1210 double point_size
= XINT (prop
[XLFD_POINT_INDEX
]);
1212 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
/ 10));
1215 if (INTEGERP (prop
[XLFD_RESX_INDEX
]))
1216 ASET (font
, FONT_DPI_INDEX
, prop
[XLFD_RESY_INDEX
]);
1217 if (! NILP (prop
[XLFD_SPACING_INDEX
]))
1219 val
= font_prop_validate_spacing (QCspacing
,
1220 prop
[XLFD_SPACING_INDEX
]);
1221 if (! INTEGERP (val
))
1223 ASET (font
, FONT_SPACING_INDEX
, val
);
1225 if (INTEGERP (prop
[XLFD_AVGWIDTH_INDEX
]))
1226 ASET (font
, FONT_AVGWIDTH_INDEX
, prop
[XLFD_AVGWIDTH_INDEX
]);
1232 /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES
1233 length), and return the name length. If FONT_SIZE_INDEX of FONT is
1234 0, use PIXEL_SIZE instead. */
1237 font_unparse_xlfd (font
, pixel_size
, name
, nbytes
)
1243 char *f
[XLFD_REGISTRY_INDEX
+ 1];
1247 font_assert (FONTP (font
));
1249 for (i
= FONT_FOUNDRY_INDEX
, j
= XLFD_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
;
1252 if (i
== FONT_ADSTYLE_INDEX
)
1253 j
= XLFD_ADSTYLE_INDEX
;
1254 else if (i
== FONT_REGISTRY_INDEX
)
1255 j
= XLFD_REGISTRY_INDEX
;
1256 val
= AREF (font
, i
);
1259 if (j
== XLFD_REGISTRY_INDEX
)
1260 f
[j
] = "*-*", len
+= 4;
1262 f
[j
] = "*", len
+= 2;
1267 val
= SYMBOL_NAME (val
);
1268 if (j
== XLFD_REGISTRY_INDEX
1269 && ! strchr ((char *) SDATA (val
), '-'))
1271 /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */
1272 if (SDATA (val
)[SBYTES (val
) - 1] == '*')
1274 f
[j
] = alloca (SBYTES (val
) + 3);
1275 sprintf (f
[j
], "%s-*", SDATA (val
));
1276 len
+= SBYTES (val
) + 3;
1280 f
[j
] = alloca (SBYTES (val
) + 4);
1281 sprintf (f
[j
], "%s*-*", SDATA (val
));
1282 len
+= SBYTES (val
) + 4;
1286 f
[j
] = (char *) SDATA (val
), len
+= SBYTES (val
) + 1;
1290 for (i
= FONT_WEIGHT_INDEX
, j
= XLFD_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
;
1293 val
= font_style_symbolic (font
, i
, 0);
1295 f
[j
] = "*", len
+= 2;
1298 val
= SYMBOL_NAME (val
);
1299 f
[j
] = (char *) SDATA (val
), len
+= SBYTES (val
) + 1;
1303 val
= AREF (font
, FONT_SIZE_INDEX
);
1304 font_assert (NUMBERP (val
) || NILP (val
));
1312 f
[XLFD_PIXEL_INDEX
] = alloca (22);
1313 len
+= sprintf (f
[XLFD_PIXEL_INDEX
], "%d-*", i
) + 1;
1316 f
[XLFD_PIXEL_INDEX
] = "*-*", len
+= 4;
1318 else if (FLOATP (val
))
1320 i
= XFLOAT_DATA (val
) * 10;
1321 f
[XLFD_PIXEL_INDEX
] = alloca (12);
1322 len
+= sprintf (f
[XLFD_PIXEL_INDEX
], "*-%d", i
) + 1;
1325 f
[XLFD_PIXEL_INDEX
] = "*-*", len
+= 4;
1327 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1329 i
= XINT (AREF (font
, FONT_DPI_INDEX
));
1330 f
[XLFD_RESX_INDEX
] = alloca (22);
1331 len
+= sprintf (f
[XLFD_RESX_INDEX
],
1335 f
[XLFD_RESX_INDEX
] = "*-*", len
+= 4;
1336 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1338 int spacing
= XINT (AREF (font
, FONT_SPACING_INDEX
));
1340 f
[XLFD_SPACING_INDEX
] = (spacing
<= FONT_SPACING_PROPORTIONAL
? "p"
1341 : spacing
<= FONT_SPACING_DUAL
? "d"
1342 : spacing
<= FONT_SPACING_MONO
? "m"
1347 f
[XLFD_SPACING_INDEX
] = "*", len
+= 2;
1348 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1350 f
[XLFD_AVGWIDTH_INDEX
] = alloca (11);
1351 len
+= sprintf (f
[XLFD_AVGWIDTH_INDEX
],
1352 "%d", XINT (AREF (font
, FONT_AVGWIDTH_INDEX
))) + 1;
1355 f
[XLFD_AVGWIDTH_INDEX
] = "*", len
+= 2;
1356 len
++; /* for terminating '\0'. */
1359 return sprintf (name
, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
1360 f
[XLFD_FOUNDRY_INDEX
], f
[XLFD_FAMILY_INDEX
],
1361 f
[XLFD_WEIGHT_INDEX
], f
[XLFD_SLANT_INDEX
],
1362 f
[XLFD_SWIDTH_INDEX
], f
[XLFD_ADSTYLE_INDEX
],
1363 f
[XLFD_PIXEL_INDEX
], f
[XLFD_RESX_INDEX
],
1364 f
[XLFD_SPACING_INDEX
], f
[XLFD_AVGWIDTH_INDEX
],
1365 f
[XLFD_REGISTRY_INDEX
]);
1368 /* Parse NAME (null terminated) and store information in FONT
1369 (font-spec or font-entity). NAME is supplied in either the
1370 Fontconfig or GTK font name format. If NAME is successfully
1371 parsed, return 0. Otherwise return -1.
1373 The fontconfig format is
1375 FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]]
1379 FAMILY [PROPS...] [SIZE]
1381 This function tries to guess which format it is. */
1384 font_parse_fcname (name
, font
)
1389 char *size_beg
= NULL
, *size_end
= NULL
;
1390 char *props_beg
= NULL
, *family_end
= NULL
;
1391 int len
= strlen (name
);
1396 for (p
= name
; *p
; p
++)
1398 if (*p
== '\\' && p
[1])
1402 props_beg
= family_end
= p
;
1407 int decimal
= 0, size_found
= 1;
1408 for (q
= p
+ 1; *q
&& *q
!= ':'; q
++)
1411 if (*q
!= '.' || decimal
)
1430 /* A fontconfig name with size and/or property data. */
1431 if (family_end
> name
)
1434 family
= font_intern_prop (name
, family_end
- name
, 1);
1435 ASET (font
, FONT_FAMILY_INDEX
, family
);
1439 double point_size
= strtod (size_beg
, &size_end
);
1440 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1441 if (*size_end
== ':' && size_end
[1])
1442 props_beg
= size_end
;
1446 /* Now parse ":KEY=VAL" patterns. */
1449 for (p
= props_beg
; *p
; p
= q
)
1451 for (q
= p
+ 1; *q
&& *q
!= '=' && *q
!= ':'; q
++);
1454 /* Must be an enumerated value. */
1458 val
= font_intern_prop (p
, q
- p
, 1);
1460 #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0)
1462 if (PROP_MATCH ("light", 5)
1463 || PROP_MATCH ("medium", 6)
1464 || PROP_MATCH ("demibold", 8)
1465 || PROP_MATCH ("bold", 4)
1466 || PROP_MATCH ("black", 5))
1467 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, val
);
1468 else if (PROP_MATCH ("roman", 5)
1469 || PROP_MATCH ("italic", 6)
1470 || PROP_MATCH ("oblique", 7))
1471 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, val
);
1472 else if (PROP_MATCH ("charcell", 8))
1473 ASET (font
, FONT_SPACING_INDEX
,
1474 make_number (FONT_SPACING_CHARCELL
));
1475 else if (PROP_MATCH ("mono", 4))
1476 ASET (font
, FONT_SPACING_INDEX
,
1477 make_number (FONT_SPACING_MONO
));
1478 else if (PROP_MATCH ("proportional", 12))
1479 ASET (font
, FONT_SPACING_INDEX
,
1480 make_number (FONT_SPACING_PROPORTIONAL
));
1489 if (q
- p
== 10 && memcmp (p
+ 1, "pixelsize", 9) == 0)
1490 prop
= FONT_SIZE_INDEX
;
1493 key
= font_intern_prop (p
, q
- p
, 1);
1494 prop
= get_font_prop_index (key
);
1498 for (q
= p
; *q
&& *q
!= ':'; q
++);
1499 val
= font_intern_prop (p
, q
- p
, 0);
1501 if (prop
>= FONT_FOUNDRY_INDEX
1502 && prop
< FONT_EXTRA_INDEX
)
1503 ASET (font
, prop
, font_prop_validate (prop
, Qnil
, val
));
1505 Ffont_put (font
, key
, val
);
1513 /* Either a fontconfig-style name with no size and property
1514 data, or a GTK-style name. */
1516 int word_len
, prop_found
= 0;
1518 for (p
= name
; *p
; p
= *q
? q
+ 1 : q
)
1524 for (q
= p
+ 1; *q
&& *q
!= ' '; q
++)
1532 double point_size
= strtod (p
, &q
);
1533 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1538 for (q
= p
+ 1; *q
&& *q
!= ' '; q
++)
1539 if (*q
== '\\' && q
[1])
1543 #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0)
1545 if (PROP_MATCH ("Ultra-Light", 11))
1548 prop
= font_intern_prop ("ultra-light", 11, 1);
1549 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1551 else if (PROP_MATCH ("Light", 5))
1554 prop
= font_intern_prop ("light", 5, 1);
1555 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1557 else if (PROP_MATCH ("Semi-Bold", 9))
1560 prop
= font_intern_prop ("semi-bold", 9, 1);
1561 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1563 else if (PROP_MATCH ("Bold", 4))
1566 prop
= font_intern_prop ("bold", 4, 1);
1567 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1569 else if (PROP_MATCH ("Italic", 6))
1572 prop
= font_intern_prop ("italic", 4, 1);
1573 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, prop
);
1575 else if (PROP_MATCH ("Oblique", 7))
1578 prop
= font_intern_prop ("oblique", 7, 1);
1579 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, prop
);
1583 return -1; /* Unknown property in GTK-style font name. */
1592 family
= font_intern_prop (name
, family_end
- name
, 1);
1593 ASET (font
, FONT_FAMILY_INDEX
, family
);
1600 /* Store fontconfig's font name of FONT (font-spec or font-entity) in
1601 NAME (NBYTES length), and return the name length. If
1602 FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */
1605 font_unparse_fcname (font
, pixel_size
, name
, nbytes
)
1611 Lisp_Object family
, foundry
;
1612 Lisp_Object tail
, val
;
1616 Lisp_Object styles
[3];
1617 char *style_names
[3] = { "weight", "slant", "width" };
1620 family
= AREF (font
, FONT_FAMILY_INDEX
);
1621 if (! NILP (family
))
1623 if (SYMBOLP (family
))
1625 family
= SYMBOL_NAME (family
);
1626 len
+= SBYTES (family
);
1632 val
= AREF (font
, FONT_SIZE_INDEX
);
1635 if (XINT (val
) != 0)
1636 pixel_size
= XINT (val
);
1638 len
+= 21; /* for ":pixelsize=NUM" */
1640 else if (FLOATP (val
))
1643 point_size
= (int) XFLOAT_DATA (val
);
1644 len
+= 11; /* for "-NUM" */
1647 foundry
= AREF (font
, FONT_FOUNDRY_INDEX
);
1648 if (! NILP (foundry
))
1650 if (SYMBOLP (foundry
))
1652 foundry
= SYMBOL_NAME (foundry
);
1653 len
+= 9 + SBYTES (foundry
); /* ":foundry=NAME" */
1659 for (i
= 0; i
< 3; i
++)
1661 styles
[i
] = font_style_symbolic (font
, FONT_WEIGHT_INDEX
+ i
, 0);
1662 if (! NILP (styles
[i
]))
1663 len
+= sprintf (work
, ":%s=%s", style_names
[i
],
1664 SDATA (SYMBOL_NAME (styles
[i
])));
1667 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1668 len
+= sprintf (work
, ":dpi=%d", XINT (AREF (font
, FONT_DPI_INDEX
)));
1669 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1670 len
+= strlen (":spacing=100");
1671 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1672 len
+= strlen (":scalable=false"); /* or ":scalable=true" */
1673 for (tail
= AREF (font
, FONT_EXTRA_INDEX
); CONSP (tail
); tail
= XCDR (tail
))
1675 Lisp_Object key
= XCAR (XCAR (tail
)), val
= XCDR (XCAR (tail
));
1677 len
+= SBYTES (SYMBOL_NAME (key
)) + 1; /* for :KEY= */
1679 len
+= SBYTES (val
);
1680 else if (INTEGERP (val
))
1681 len
+= sprintf (work
, "%d", XINT (val
));
1682 else if (SYMBOLP (val
))
1683 len
+= (NILP (val
) ? 5 : 4); /* for "false" or "true" */
1689 if (! NILP (family
))
1690 p
+= sprintf (p
, "%s", SDATA (family
));
1694 p
+= sprintf (p
, "%d", point_size
);
1696 p
+= sprintf (p
, "-%d", point_size
);
1698 else if (pixel_size
> 0)
1699 p
+= sprintf (p
, ":pixelsize=%d", pixel_size
);
1700 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
1701 p
+= sprintf (p
, ":foundry=%s",
1702 SDATA (SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
))));
1703 for (i
= 0; i
< 3; i
++)
1704 if (! NILP (styles
[i
]))
1705 p
+= sprintf (p
, ":%s=%s", style_names
[i
],
1706 SDATA (SYMBOL_NAME (styles
[i
])));
1707 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1708 p
+= sprintf (p
, ":dpi=%d", XINT (AREF (font
, FONT_DPI_INDEX
)));
1709 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1710 p
+= sprintf (p
, ":spacing=%d", XINT (AREF (font
, FONT_SPACING_INDEX
)));
1711 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1713 if (XINT (AREF (font
, FONT_AVGWIDTH_INDEX
)) == 0)
1714 p
+= sprintf (p
, ":scalable=true");
1716 p
+= sprintf (p
, ":scalable=false");
1721 /* Store GTK-style font name of FONT (font-spec or font-entity) in
1722 NAME (NBYTES length), and return the name length. F is the frame
1723 on which the font is displayed; it is used to calculate the point
1727 font_unparse_gtkname (font
, f
, name
, nbytes
)
1735 Lisp_Object family
, weight
, slant
, size
;
1736 int point_size
= -1;
1738 family
= AREF (font
, FONT_FAMILY_INDEX
);
1739 if (! NILP (family
))
1741 if (! SYMBOLP (family
))
1743 family
= SYMBOL_NAME (family
);
1744 len
+= SBYTES (family
);
1747 weight
= font_style_symbolic (font
, FONT_WEIGHT_INDEX
, 0);
1748 if (EQ (weight
, Qnormal
))
1750 else if (! NILP (weight
))
1752 weight
= SYMBOL_NAME (weight
);
1753 len
+= SBYTES (weight
);
1756 slant
= font_style_symbolic (font
, FONT_SLANT_INDEX
, 0);
1757 if (EQ (slant
, Qnormal
))
1759 else if (! NILP (slant
))
1761 slant
= SYMBOL_NAME (slant
);
1762 len
+= SBYTES (slant
);
1765 size
= AREF (font
, FONT_SIZE_INDEX
);
1766 /* Convert pixel size to point size. */
1767 if (INTEGERP (size
))
1769 Lisp_Object font_dpi
= AREF (font
, FONT_DPI_INDEX
);
1771 if (INTEGERP (font_dpi
))
1772 dpi
= XINT (font_dpi
);
1775 point_size
= PIXEL_TO_POINT (XINT (size
), dpi
);
1778 else if (FLOATP (size
))
1780 point_size
= (int) XFLOAT_DATA (size
);
1787 p
= name
+ sprintf (name
, "%s", SDATA (family
));
1789 if (! NILP (weight
))
1792 p
+= sprintf (p
, " %s", SDATA (weight
));
1793 q
[1] = toupper (q
[1]);
1799 p
+= sprintf (p
, " %s", SDATA (slant
));
1800 q
[1] = toupper (q
[1]);
1804 p
+= sprintf (p
, " %d", point_size
);
1809 /* Parse NAME (null terminated) and store information in FONT
1810 (font-spec or font-entity). If NAME is successfully parsed, return
1811 0. Otherwise return -1. */
1814 font_parse_name (name
, font
)
1818 if (name
[0] == '-' || index (name
, '*') || index (name
, '?'))
1819 return font_parse_xlfd (name
, font
);
1820 return font_parse_fcname (name
, font
);
1824 /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form
1825 "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding
1829 font_parse_family_registry (family
, registry
, font_spec
)
1830 Lisp_Object family
, registry
, font_spec
;
1836 && NILP (AREF (font_spec
, FONT_FAMILY_INDEX
)))
1838 CHECK_STRING (family
);
1839 len
= SBYTES (family
);
1840 p0
= (char *) SDATA (family
);
1841 p1
= index (p0
, '-');
1844 if ((*p0
!= '*' || p1
- p0
> 1)
1845 && NILP (AREF (font_spec
, FONT_FOUNDRY_INDEX
)))
1846 Ffont_put (font_spec
, QCfoundry
, font_intern_prop (p0
, p1
- p0
, 1));
1849 Ffont_put (font_spec
, QCfamily
, font_intern_prop (p1
, len
, 1));
1852 ASET (font_spec
, FONT_FAMILY_INDEX
, Fintern (family
, Qnil
));
1854 if (! NILP (registry
))
1856 /* Convert "XXX" and "XXX*" to "XXX*-*". */
1857 CHECK_STRING (registry
);
1858 len
= SBYTES (registry
);
1859 p0
= (char *) SDATA (registry
);
1860 p1
= index (p0
, '-');
1863 if (SDATA (registry
)[len
- 1] == '*')
1864 registry
= concat2 (registry
, build_string ("-*"));
1866 registry
= concat2 (registry
, build_string ("*-*"));
1868 registry
= Fdowncase (registry
);
1869 ASET (font_spec
, FONT_REGISTRY_INDEX
, Fintern (registry
, Qnil
));
1874 /* This part (through the next ^L) is still experimental and not
1875 tested much. We may drastically change codes. */
1881 #define LGSTRING_HEADER_SIZE 6
1882 #define LGSTRING_GLYPH_SIZE 8
1885 check_gstring (gstring
)
1886 Lisp_Object gstring
;
1891 CHECK_VECTOR (gstring
);
1892 val
= AREF (gstring
, 0);
1894 if (ASIZE (val
) < LGSTRING_HEADER_SIZE
)
1896 CHECK_FONT_OBJECT (LGSTRING_FONT (gstring
));
1897 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
)))
1898 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
));
1899 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
)))
1900 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
));
1901 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
)))
1902 CHECK_NATNUM (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
));
1903 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1904 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1905 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1906 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1908 for (i
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
1910 val
= LGSTRING_GLYPH (gstring
, i
);
1912 if (ASIZE (val
) < LGSTRING_GLYPH_SIZE
)
1914 if (NILP (AREF (val
, LGLYPH_IX_CHAR
)))
1916 CHECK_NATNUM (AREF (val
, LGLYPH_IX_FROM
));
1917 CHECK_NATNUM (AREF (val
, LGLYPH_IX_TO
));
1918 CHECK_CHARACTER (AREF (val
, LGLYPH_IX_CHAR
));
1919 if (!NILP (AREF (val
, LGLYPH_IX_CODE
)))
1920 CHECK_NATNUM (AREF (val
, LGLYPH_IX_CODE
));
1921 if (!NILP (AREF (val
, LGLYPH_IX_WIDTH
)))
1922 CHECK_NATNUM (AREF (val
, LGLYPH_IX_WIDTH
));
1923 if (!NILP (AREF (val
, LGLYPH_IX_ADJUSTMENT
)))
1925 val
= AREF (val
, LGLYPH_IX_ADJUSTMENT
);
1927 if (ASIZE (val
) < 3)
1929 for (j
= 0; j
< 3; j
++)
1930 CHECK_NUMBER (AREF (val
, j
));
1935 error ("Invalid glyph-string format");
1940 check_otf_features (otf_features
)
1941 Lisp_Object otf_features
;
1945 CHECK_CONS (otf_features
);
1946 CHECK_SYMBOL (XCAR (otf_features
));
1947 otf_features
= XCDR (otf_features
);
1948 CHECK_CONS (otf_features
);
1949 CHECK_SYMBOL (XCAR (otf_features
));
1950 otf_features
= XCDR (otf_features
);
1951 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1953 CHECK_SYMBOL (Fcar (val
));
1954 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1955 error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val
)));
1957 otf_features
= XCDR (otf_features
);
1958 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1960 CHECK_SYMBOL (Fcar (val
));
1961 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1962 error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val
)));
1969 Lisp_Object otf_list
;
1972 otf_tag_symbol (tag
)
1977 OTF_tag_name (tag
, name
);
1978 return Fintern (make_unibyte_string (name
, 4), Qnil
);
1985 Lisp_Object val
= Fassoc (file
, otf_list
);
1989 otf
= XSAVE_VALUE (XCDR (val
))->pointer
;
1992 otf
= STRINGP (file
) ? OTF_open ((char *) SDATA (file
)) : NULL
;
1993 val
= make_save_value (otf
, 0);
1994 otf_list
= Fcons (Fcons (file
, val
), otf_list
);
2000 /* Return a list describing which scripts/languages FONT supports by
2001 which GSUB/GPOS features of OpenType tables. See the comment of
2002 (struct font_driver).otf_capability. */
2005 font_otf_capability (font
)
2009 Lisp_Object capability
= Fcons (Qnil
, Qnil
);
2012 otf
= otf_open (font
->props
[FONT_FILE_INDEX
]);
2015 for (i
= 0; i
< 2; i
++)
2017 OTF_GSUB_GPOS
*gsub_gpos
;
2018 Lisp_Object script_list
= Qnil
;
2021 if (OTF_get_features (otf
, i
== 0) < 0)
2023 gsub_gpos
= i
== 0 ? otf
->gsub
: otf
->gpos
;
2024 for (j
= gsub_gpos
->ScriptList
.ScriptCount
- 1; j
>= 0; j
--)
2026 OTF_Script
*script
= gsub_gpos
->ScriptList
.Script
+ j
;
2027 Lisp_Object langsys_list
= Qnil
;
2028 Lisp_Object script_tag
= otf_tag_symbol (script
->ScriptTag
);
2031 for (k
= script
->LangSysCount
; k
>= 0; k
--)
2033 OTF_LangSys
*langsys
;
2034 Lisp_Object feature_list
= Qnil
;
2035 Lisp_Object langsys_tag
;
2038 if (k
== script
->LangSysCount
)
2040 langsys
= &script
->DefaultLangSys
;
2045 langsys
= script
->LangSys
+ k
;
2047 = otf_tag_symbol (script
->LangSysRecord
[k
].LangSysTag
);
2049 for (l
= langsys
->FeatureCount
- 1; l
>= 0; l
--)
2051 OTF_Feature
*feature
2052 = gsub_gpos
->FeatureList
.Feature
+ langsys
->FeatureIndex
[l
];
2053 Lisp_Object feature_tag
2054 = otf_tag_symbol (feature
->FeatureTag
);
2056 feature_list
= Fcons (feature_tag
, feature_list
);
2058 langsys_list
= Fcons (Fcons (langsys_tag
, feature_list
),
2061 script_list
= Fcons (Fcons (script_tag
, langsys_list
),
2066 XSETCAR (capability
, script_list
);
2068 XSETCDR (capability
, script_list
);
2074 /* Parse OTF features in SPEC and write a proper features spec string
2075 in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is
2076 assured that the sufficient memory has already allocated for
2080 generate_otf_features (spec
, features
)
2090 for (asterisk
= 0; CONSP (spec
); spec
= XCDR (spec
))
2096 if (SREF (SYMBOL_NAME (val
), 0) == '*')
2101 else if (! asterisk
)
2103 val
= SYMBOL_NAME (val
);
2104 p
+= sprintf (p
, "%s", SDATA (val
));
2108 val
= SYMBOL_NAME (val
);
2109 p
+= sprintf (p
, "~%s", SDATA (val
));
2113 error ("OTF spec too long");
2117 font_otf_DeviceTable (device_table
)
2118 OTF_DeviceTable
*device_table
;
2120 int len
= device_table
->StartSize
- device_table
->EndSize
+ 1;
2122 return Fcons (make_number (len
),
2123 make_unibyte_string (device_table
->DeltaValue
, len
));
2127 font_otf_ValueRecord (value_format
, value_record
)
2129 OTF_ValueRecord
*value_record
;
2131 Lisp_Object val
= Fmake_vector (make_number (8), Qnil
);
2133 if (value_format
& OTF_XPlacement
)
2134 ASET (val
, 0, make_number (value_record
->XPlacement
));
2135 if (value_format
& OTF_YPlacement
)
2136 ASET (val
, 1, make_number (value_record
->YPlacement
));
2137 if (value_format
& OTF_XAdvance
)
2138 ASET (val
, 2, make_number (value_record
->XAdvance
));
2139 if (value_format
& OTF_YAdvance
)
2140 ASET (val
, 3, make_number (value_record
->YAdvance
));
2141 if (value_format
& OTF_XPlaDevice
)
2142 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XPlaDevice
));
2143 if (value_format
& OTF_YPlaDevice
)
2144 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YPlaDevice
));
2145 if (value_format
& OTF_XAdvDevice
)
2146 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XAdvDevice
));
2147 if (value_format
& OTF_YAdvDevice
)
2148 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YAdvDevice
));
2153 font_otf_Anchor (anchor
)
2158 val
= Fmake_vector (make_number (anchor
->AnchorFormat
+ 1), Qnil
);
2159 ASET (val
, 0, make_number (anchor
->XCoordinate
));
2160 ASET (val
, 1, make_number (anchor
->YCoordinate
));
2161 if (anchor
->AnchorFormat
== 2)
2162 ASET (val
, 2, make_number (anchor
->f
.f1
.AnchorPoint
));
2165 ASET (val
, 3, font_otf_DeviceTable (&anchor
->f
.f2
.XDeviceTable
));
2166 ASET (val
, 4, font_otf_DeviceTable (&anchor
->f
.f2
.YDeviceTable
));
2170 #endif /* HAVE_LIBOTF */
2176 static unsigned font_score
P_ ((Lisp_Object
, Lisp_Object
*));
2177 static int font_compare
P_ ((const void *, const void *));
2178 static Lisp_Object font_sort_entites
P_ ((Lisp_Object
, Lisp_Object
,
2181 /* Return a rescaling ratio of FONT_ENTITY. */
2182 extern Lisp_Object Vface_font_rescale_alist
;
2185 font_rescale_ratio (font_entity
)
2186 Lisp_Object font_entity
;
2188 Lisp_Object tail
, elt
;
2189 Lisp_Object name
= Qnil
;
2191 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2194 if (FLOATP (XCDR (elt
)))
2196 if (STRINGP (XCAR (elt
)))
2199 name
= Ffont_xlfd_name (font_entity
, Qnil
);
2200 if (fast_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2201 return XFLOAT_DATA (XCDR (elt
));
2203 else if (FONT_SPEC_P (XCAR (elt
)))
2205 if (font_match_p (XCAR (elt
), font_entity
))
2206 return XFLOAT_DATA (XCDR (elt
));
2213 /* We sort fonts by scoring each of them against a specified
2214 font-spec. The score value is 32 bit (`unsigned'), and the smaller
2215 the value is, the closer the font is to the font-spec.
2217 The lowest 2 bits of the score is used for driver type. The font
2218 available by the most preferred font driver is 0.
2220 Each 7-bit in the higher 28 bits are used for numeric properties
2221 WEIGHT, SLANT, WIDTH, and SIZE. */
2223 /* How many bits to shift to store the difference value of each font
2224 property in a score. Note that flots for FONT_TYPE_INDEX and
2225 FONT_REGISTRY_INDEX are not used. */
2226 static int sort_shift_bits
[FONT_SIZE_INDEX
+ 1];
2228 /* Score font-entity ENTITY against properties of font-spec SPEC_PROP.
2229 The return value indicates how different ENTITY is compared with
2233 font_score (entity
, spec_prop
)
2234 Lisp_Object entity
, *spec_prop
;
2239 /* Score three style numeric fields. Maximum difference is 127. */
2240 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
; i
++)
2241 if (! NILP (spec_prop
[i
]) && ! EQ (AREF (entity
, i
), spec_prop
[i
]))
2243 int diff
= (XINT (AREF (entity
, i
)) >> 8) - (XINT (spec_prop
[i
]) >> 8);
2248 score
|= min (diff
, 127) << sort_shift_bits
[i
];
2251 /* Score the size. Maximum difference is 127. */
2252 i
= FONT_SIZE_INDEX
;
2253 if (! NILP (spec_prop
[FONT_SIZE_INDEX
])
2254 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2256 /* We use the higher 6-bit for the actual size difference. The
2257 lowest bit is set if the DPI is different. */
2259 int pixel_size
= XINT (spec_prop
[FONT_SIZE_INDEX
]);
2261 if (CONSP (Vface_font_rescale_alist
))
2262 pixel_size
*= font_rescale_ratio (entity
);
2263 diff
= pixel_size
- XINT (AREF (entity
, FONT_SIZE_INDEX
));
2267 if (! NILP (spec_prop
[FONT_DPI_INDEX
])
2268 && ! EQ (spec_prop
[FONT_DPI_INDEX
], AREF (entity
, FONT_DPI_INDEX
)))
2270 score
|= min (diff
, 127) << sort_shift_bits
[FONT_SIZE_INDEX
];
2277 /* The comparison function for qsort. */
2280 font_compare (d1
, d2
)
2281 const void *d1
, *d2
;
2283 return (*(unsigned *) d1
- *(unsigned *) d2
);
2287 /* The structure for elements being sorted by qsort. */
2288 struct font_sort_data
2295 /* Sort font-entities in vector VEC by closeness to font-spec PREFER.
2296 If PREFER specifies a point-size, calculate the corresponding
2297 pixel-size from QCdpi property of PREFER or from the Y-resolution
2298 of FRAME before sorting.
2300 If BEST-ONLY is nonzero, return the best matching entity (that
2301 supports the character BEST-ONLY if BEST-ONLY is positive, or any
2302 if BEST-ONLY is negative). Otherwise, return the sorted VEC.
2304 This function does no optimization for the case that the length of
2305 VEC is 1. The caller should avoid calling this in such a case. */
2308 font_sort_entites (vec
, prefer
, frame
, best_only
)
2309 Lisp_Object vec
, prefer
, frame
;
2312 Lisp_Object prefer_prop
[FONT_SPEC_MAX
];
2314 struct font_sort_data
*data
;
2315 unsigned best_score
;
2316 Lisp_Object best_entity
, driver_type
;
2318 struct frame
*f
= XFRAME (frame
);
2319 struct font_driver_list
*list
;
2323 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_DPI_INDEX
; i
++)
2324 prefer_prop
[i
] = AREF (prefer
, i
);
2325 if (FLOATP (prefer_prop
[FONT_SIZE_INDEX
]))
2326 prefer_prop
[FONT_SIZE_INDEX
]
2327 = make_number (font_pixel_size (XFRAME (frame
), prefer
));
2329 /* Scoring and sorting. */
2330 SAFE_ALLOCA (data
, struct font_sort_data
*, (sizeof *data
) * len
);
2331 /* We are sure that the length of VEC > 1. */
2332 driver_type
= AREF (AREF (vec
, 0), FONT_TYPE_INDEX
);
2333 for (driver_order
= 0, list
= f
->font_driver_list
; list
;
2334 driver_order
++, list
= list
->next
)
2335 if (EQ (driver_type
, list
->driver
->type
))
2337 best_score
= 0xFFFFFFFF;
2339 for (i
= 0; i
< len
; i
++)
2341 if (!EQ (driver_type
, AREF (AREF (vec
, i
), FONT_TYPE_INDEX
)))
2342 for (driver_order
= 0, list
= f
->font_driver_list
; list
;
2343 driver_order
++, list
= list
->next
)
2344 if (EQ (driver_type
, list
->driver
->type
))
2346 data
[i
].entity
= AREF (vec
, i
);
2348 = (best_only
<= 0 || font_has_char (f
, data
[i
].entity
, best_only
) > 0
2349 ? font_score (data
[i
].entity
, prefer_prop
) | driver_order
2351 if (best_only
&& best_score
> data
[i
].score
)
2353 best_score
= data
[i
].score
;
2354 best_entity
= data
[i
].entity
;
2355 if (best_score
== 0)
2361 qsort (data
, len
, sizeof *data
, font_compare
);
2362 for (i
= 0; i
< len
; i
++)
2363 ASET (vec
, i
, data
[i
].entity
);
2369 font_add_log ("sort-by", prefer
, vec
);
2374 /* API of Font Service Layer. */
2376 /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to
2377 sort_shift_bits. Finternal_set_font_selection_order calls this
2378 function with font_sort_order after setting up it. */
2381 font_update_sort_order (order
)
2386 for (i
= 0, shift_bits
= 23; i
< 4; i
++, shift_bits
-= 7)
2388 int xlfd_idx
= order
[i
];
2390 if (xlfd_idx
== XLFD_WEIGHT_INDEX
)
2391 sort_shift_bits
[FONT_WEIGHT_INDEX
] = shift_bits
;
2392 else if (xlfd_idx
== XLFD_SLANT_INDEX
)
2393 sort_shift_bits
[FONT_SLANT_INDEX
] = shift_bits
;
2394 else if (xlfd_idx
== XLFD_SWIDTH_INDEX
)
2395 sort_shift_bits
[FONT_WIDTH_INDEX
] = shift_bits
;
2397 sort_shift_bits
[FONT_SIZE_INDEX
] = shift_bits
;
2402 font_check_otf_features (script
, langsys
, features
, table
)
2403 Lisp_Object script
, langsys
, features
, table
;
2408 table
= assq_no_quit (script
, table
);
2411 table
= XCDR (table
);
2412 if (! NILP (langsys
))
2414 table
= assq_no_quit (langsys
, table
);
2420 val
= assq_no_quit (Qnil
, table
);
2422 table
= XCAR (table
);
2426 table
= XCDR (table
);
2427 for (negative
= 0; CONSP (features
); features
= XCDR (features
))
2429 if (NILP (XCAR (features
)))
2434 if (NILP (Fmemq (XCAR (features
), table
)) != negative
)
2440 /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */
2443 font_check_otf (Lisp_Object spec
, Lisp_Object otf_capability
)
2445 Lisp_Object script
, langsys
= Qnil
, gsub
= Qnil
, gpos
= Qnil
;
2447 script
= XCAR (spec
);
2451 langsys
= XCAR (spec
);
2462 if (! NILP (gsub
) && ! font_check_otf_features (script
, langsys
, gsub
,
2463 XCAR (otf_capability
)))
2465 if (! NILP (gpos
) && ! font_check_otf_features (script
, langsys
, gpos
,
2466 XCDR (otf_capability
)))
2473 /* Check if FONT (font-entity or font-object) matches with the font
2474 specification SPEC. */
2477 font_match_p (spec
, font
)
2478 Lisp_Object spec
, font
;
2480 Lisp_Object prop
[FONT_SPEC_MAX
], *props
;
2481 Lisp_Object extra
, font_extra
;
2484 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2485 if (! NILP (AREF (spec
, i
))
2486 && ! NILP (AREF (font
, i
))
2487 && ! EQ (AREF (spec
, i
), AREF (font
, i
)))
2489 props
= XFONT_SPEC (spec
)->props
;
2490 if (FLOATP (props
[FONT_SIZE_INDEX
]))
2492 for (i
= FONT_FOUNDRY_INDEX
; i
< FONT_SIZE_INDEX
; i
++)
2493 prop
[i
] = AREF (spec
, i
);
2494 prop
[FONT_SIZE_INDEX
]
2495 = make_number (font_pixel_size (XFRAME (selected_frame
), spec
));
2499 if (font_score (font
, props
) > 0)
2501 extra
= AREF (spec
, FONT_EXTRA_INDEX
);
2502 font_extra
= AREF (font
, FONT_EXTRA_INDEX
);
2503 for (; CONSP (extra
); extra
= XCDR (extra
))
2505 Lisp_Object key
= XCAR (XCAR (extra
));
2506 Lisp_Object val
= XCDR (XCAR (extra
)), val2
;
2508 if (EQ (key
, QClang
))
2510 val2
= assq_no_quit (key
, font_extra
);
2519 if (NILP (Fmemq (val
, val2
)))
2524 ? NILP (Fmemq (val
, XCDR (val2
)))
2528 else if (EQ (key
, QCscript
))
2530 val2
= assq_no_quit (val
, Vscript_representative_chars
);
2536 /* All characters in the list must be supported. */
2537 for (; CONSP (val2
); val2
= XCDR (val2
))
2539 if (! NATNUMP (XCAR (val2
)))
2541 if (font_encode_char (font
, XFASTINT (XCAR (val2
)))
2542 == FONT_INVALID_CODE
)
2546 else if (VECTORP (val2
))
2548 /* At most one character in the vector must be supported. */
2549 for (i
= 0; i
< ASIZE (val2
); i
++)
2551 if (! NATNUMP (AREF (val2
, i
)))
2553 if (font_encode_char (font
, XFASTINT (AREF (val2
, i
)))
2554 != FONT_INVALID_CODE
)
2557 if (i
== ASIZE (val2
))
2562 else if (EQ (key
, QCotf
))
2566 if (! FONT_OBJECT_P (font
))
2568 fontp
= XFONT_OBJECT (font
);
2569 if (! fontp
->driver
->otf_capability
)
2571 val2
= fontp
->driver
->otf_capability (fontp
);
2572 if (NILP (val2
) || ! font_check_otf (val
, val2
))
2583 Each font backend has the callback function get_cache, and it
2584 returns a cons cell of which cdr part can be freely used for
2585 caching fonts. The cons cell may be shared by multiple frames
2586 and/or multiple font drivers. So, we arrange the cdr part as this:
2588 ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...)
2590 where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES
2591 is a number frames sharing this cache, and FONT-CACHE-DATA is a
2592 cons (FONT-SPEC FONT-ENTITY ...). */
2594 static void font_prepare_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2595 static void font_finish_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2596 static Lisp_Object font_get_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2597 static void font_clear_cache
P_ ((FRAME_PTR
, Lisp_Object
,
2598 struct font_driver
*));
2601 font_prepare_cache (f
, driver
)
2603 struct font_driver
*driver
;
2605 Lisp_Object cache
, val
;
2607 cache
= driver
->get_cache (f
);
2609 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2613 val
= Fcons (driver
->type
, Fcons (make_number (1), Qnil
));
2614 XSETCDR (cache
, Fcons (val
, XCDR (cache
)));
2618 val
= XCDR (XCAR (val
));
2619 XSETCAR (val
, make_number (XINT (XCAR (val
)) + 1));
2625 font_finish_cache (f
, driver
)
2627 struct font_driver
*driver
;
2629 Lisp_Object cache
, val
, tmp
;
2632 cache
= driver
->get_cache (f
);
2634 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2635 cache
= val
, val
= XCDR (val
);
2636 font_assert (! NILP (val
));
2637 tmp
= XCDR (XCAR (val
));
2638 XSETCAR (tmp
, make_number (XINT (XCAR (tmp
)) - 1));
2639 if (XINT (XCAR (tmp
)) == 0)
2641 font_clear_cache (f
, XCAR (val
), driver
);
2642 XSETCDR (cache
, XCDR (val
));
2648 font_get_cache (f
, driver
)
2650 struct font_driver
*driver
;
2652 Lisp_Object val
= driver
->get_cache (f
);
2653 Lisp_Object type
= driver
->type
;
2655 font_assert (CONSP (val
));
2656 for (val
= XCDR (val
); ! EQ (XCAR (XCAR (val
)), type
); val
= XCDR (val
));
2657 font_assert (CONSP (val
));
2658 /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */
2659 val
= XCDR (XCAR (val
));
2663 static int num_fonts
;
2666 font_clear_cache (f
, cache
, driver
)
2669 struct font_driver
*driver
;
2671 Lisp_Object tail
, elt
;
2672 Lisp_Object tail2
, entity
;
2674 /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */
2675 for (tail
= XCDR (XCDR (cache
)); CONSP (tail
); tail
= XCDR (tail
))
2678 /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */
2679 if (CONSP (elt
) && FONT_SPEC_P (XCAR (elt
)))
2681 for (tail2
= XCDR (elt
); CONSP (tail2
); tail2
= XCDR (tail2
))
2683 entity
= XCAR (tail2
);
2685 if (FONT_ENTITY_P (entity
)
2686 && EQ (driver
->type
, AREF (entity
, FONT_TYPE_INDEX
)))
2688 Lisp_Object objlist
= AREF (entity
, FONT_OBJLIST_INDEX
);
2690 for (; CONSP (objlist
); objlist
= XCDR (objlist
))
2692 Lisp_Object val
= XCAR (objlist
);
2693 struct font
*font
= XFONT_OBJECT (val
);
2695 if (! NILP (AREF (val
, FONT_TYPE_INDEX
)))
2697 font_assert (font
&& driver
== font
->driver
);
2698 driver
->close (f
, font
);
2702 if (driver
->free_entity
)
2703 driver
->free_entity (entity
);
2708 XSETCDR (cache
, Qnil
);
2712 static Lisp_Object scratch_font_spec
, scratch_font_prefer
;
2715 font_delete_unmatched (list
, spec
, size
)
2716 Lisp_Object list
, spec
;
2719 Lisp_Object entity
, val
;
2720 enum font_property_index prop
;
2722 for (val
= Qnil
; CONSP (list
); list
= XCDR (list
))
2724 entity
= XCAR (list
);
2725 for (prop
= FONT_WEIGHT_INDEX
; prop
< FONT_SIZE_INDEX
; prop
++)
2726 if (INTEGERP (AREF (spec
, prop
))
2727 && ((XINT (AREF (spec
, prop
)) >> 8)
2728 != (XINT (AREF (entity
, prop
)) >> 8)))
2729 prop
= FONT_SPEC_MAX
;
2730 if (prop
< FONT_SPEC_MAX
2732 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2734 int diff
= XINT (AREF (entity
, FONT_SIZE_INDEX
)) - size
;
2737 && (diff
< 0 ? -diff
> FONT_PIXEL_SIZE_QUANTUM
2738 : diff
> FONT_PIXEL_SIZE_QUANTUM
))
2739 prop
= FONT_SPEC_MAX
;
2741 if (prop
< FONT_SPEC_MAX
2742 && INTEGERP (AREF (spec
, FONT_DPI_INDEX
))
2743 && INTEGERP (AREF (entity
, FONT_DPI_INDEX
))
2744 && XINT (AREF (entity
, FONT_DPI_INDEX
)) != 0
2745 && ! EQ (AREF (spec
, FONT_DPI_INDEX
), AREF (entity
, FONT_DPI_INDEX
)))
2746 prop
= FONT_SPEC_MAX
;
2747 if (prop
< FONT_SPEC_MAX
2748 && INTEGERP (AREF (spec
, FONT_AVGWIDTH_INDEX
))
2749 && INTEGERP (AREF (entity
, FONT_AVGWIDTH_INDEX
))
2750 && XINT (AREF (entity
, FONT_AVGWIDTH_INDEX
)) != 0
2751 && ! EQ (AREF (spec
, FONT_AVGWIDTH_INDEX
),
2752 AREF (entity
, FONT_AVGWIDTH_INDEX
)))
2753 prop
= FONT_SPEC_MAX
;
2754 if (prop
< FONT_SPEC_MAX
)
2755 val
= Fcons (entity
, val
);
2757 return Fnreverse (val
);
2761 /* Return a vector of font-entities matching with SPEC on FRAME. */
2764 font_list_entities (frame
, spec
)
2765 Lisp_Object frame
, spec
;
2767 FRAME_PTR f
= XFRAME (frame
);
2768 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2769 Lisp_Object ftype
, val
;
2772 int need_filtering
= 0;
2775 font_assert (FONT_SPEC_P (spec
));
2777 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
2778 size
= XINT (AREF (spec
, FONT_SIZE_INDEX
));
2779 else if (FLOATP (AREF (spec
, FONT_SIZE_INDEX
)))
2780 size
= font_pixel_size (f
, spec
);
2784 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2785 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2786 ASET (scratch_font_spec
, i
, AREF (spec
, i
));
2787 for (i
= FONT_WEIGHT_INDEX
; i
< FONT_EXTRA_INDEX
; i
++)
2789 ASET (scratch_font_spec
, i
, Qnil
);
2790 if (! NILP (AREF (spec
, i
)))
2792 if (i
== FONT_DPI_INDEX
)
2793 /* Skip FONT_SPACING_INDEX */
2796 ASET (scratch_font_spec
, FONT_SPACING_INDEX
, AREF (spec
, FONT_SPACING_INDEX
));
2797 ASET (scratch_font_spec
, FONT_EXTRA_INDEX
, AREF (spec
, FONT_EXTRA_INDEX
));
2799 vec
= alloca (sizeof (Lisp_Object
) * num_font_drivers
);
2803 for (i
= 0; driver_list
; driver_list
= driver_list
->next
)
2805 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2807 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2809 ASET (scratch_font_spec
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2810 val
= assoc_no_quit (scratch_font_spec
, XCDR (cache
));
2817 val
= driver_list
->driver
->list (frame
, scratch_font_spec
);
2818 copy
= Fcopy_font_spec (scratch_font_spec
);
2819 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2820 XSETCDR (cache
, Fcons (Fcons (copy
, val
), XCDR (cache
)));
2822 if (! NILP (val
) && need_filtering
)
2823 val
= font_delete_unmatched (val
, spec
, size
);
2828 val
= (i
> 0 ? Fvconcat (i
, vec
) : null_vector
);
2829 font_add_log ("list", spec
, val
);
2834 /* Return a font entity matching with SPEC on FRAME. ATTRS, if non
2835 nil, is an array of face's attributes, which specifies preferred
2836 font-related attributes. */
2839 font_matching_entity (f
, attrs
, spec
)
2841 Lisp_Object
*attrs
, spec
;
2843 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2844 Lisp_Object ftype
, size
, entity
;
2846 Lisp_Object work
= Fcopy_font_spec (spec
);
2848 XSETFRAME (frame
, f
);
2849 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2850 size
= AREF (spec
, FONT_SIZE_INDEX
);
2853 ASET (work
, FONT_SIZE_INDEX
, make_number (font_pixel_size (f
, spec
)));
2854 FONT_SET_STYLE (work
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
2855 FONT_SET_STYLE (work
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
2856 FONT_SET_STYLE (work
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
2859 for (; driver_list
; driver_list
= driver_list
->next
)
2861 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2863 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2866 ASET (work
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2867 entity
= assoc_no_quit (work
, XCDR (cache
));
2869 entity
= XCDR (entity
);
2872 entity
= driver_list
->driver
->match (frame
, work
);
2873 copy
= Fcopy_font_spec (work
);
2874 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2875 XSETCDR (cache
, Fcons (Fcons (copy
, entity
), XCDR (cache
)));
2877 if (! NILP (entity
))
2880 font_add_log ("match", work
, entity
);
2885 /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the
2886 opened font object. */
2889 font_open_entity (f
, entity
, pixel_size
)
2894 struct font_driver_list
*driver_list
;
2895 Lisp_Object objlist
, size
, val
, font_object
;
2897 int min_width
, height
;
2898 int scaled_pixel_size
;
2900 font_assert (FONT_ENTITY_P (entity
));
2901 size
= AREF (entity
, FONT_SIZE_INDEX
);
2902 if (XINT (size
) != 0)
2903 scaled_pixel_size
= pixel_size
= XINT (size
);
2904 else if (CONSP (Vface_font_rescale_alist
))
2905 scaled_pixel_size
= pixel_size
* font_rescale_ratio (entity
);
2907 for (objlist
= AREF (entity
, FONT_OBJLIST_INDEX
); CONSP (objlist
);
2908 objlist
= XCDR (objlist
))
2909 if (! NILP (AREF (XCAR (objlist
), FONT_TYPE_INDEX
))
2910 && XFONT_OBJECT (XCAR (objlist
))->pixel_size
== pixel_size
)
2911 return XCAR (objlist
);
2913 val
= AREF (entity
, FONT_TYPE_INDEX
);
2914 for (driver_list
= f
->font_driver_list
;
2915 driver_list
&& ! EQ (driver_list
->driver
->type
, val
);
2916 driver_list
= driver_list
->next
);
2920 font_object
= driver_list
->driver
->open (f
, entity
, scaled_pixel_size
);
2921 ASET (font_object
, FONT_SIZE_INDEX
, make_number (pixel_size
));
2922 font_add_log ("open", entity
, font_object
);
2923 if (NILP (font_object
))
2925 ASET (entity
, FONT_OBJLIST_INDEX
,
2926 Fcons (font_object
, AREF (entity
, FONT_OBJLIST_INDEX
)));
2927 ASET (font_object
, FONT_OBJLIST_INDEX
, Qnil
);
2930 font
= XFONT_OBJECT (font_object
);
2931 min_width
= (font
->min_width
? font
->min_width
2932 : font
->average_width
? font
->average_width
2933 : font
->space_width
? font
->space_width
2935 height
= (font
->height
? font
->height
: 1);
2936 #ifdef HAVE_WINDOW_SYSTEM
2937 FRAME_X_DISPLAY_INFO (f
)->n_fonts
++;
2938 if (FRAME_X_DISPLAY_INFO (f
)->n_fonts
== 1)
2940 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
;
2941 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
;
2942 fonts_changed_p
= 1;
2946 if (FRAME_SMALLEST_CHAR_WIDTH (f
) > min_width
)
2947 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
, fonts_changed_p
= 1;
2948 if (FRAME_SMALLEST_FONT_HEIGHT (f
) > height
)
2949 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
, fonts_changed_p
= 1;
2957 /* Close FONT_OBJECT that is opened on frame F. */
2960 font_close_object (f
, font_object
)
2962 Lisp_Object font_object
;
2964 struct font
*font
= XFONT_OBJECT (font_object
);
2966 if (NILP (AREF (font_object
, FONT_TYPE_INDEX
)))
2967 /* Already closed. */
2969 font_add_log ("close", font_object
, Qnil
);
2970 font
->driver
->close (f
, font
);
2971 #ifdef HAVE_WINDOW_SYSTEM
2972 font_assert (FRAME_X_DISPLAY_INFO (f
)->n_fonts
);
2973 FRAME_X_DISPLAY_INFO (f
)->n_fonts
--;
2979 /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if
2980 FONT is a font-entity and it must be opened to check. */
2983 font_has_char (f
, font
, c
)
2990 if (FONT_ENTITY_P (font
))
2992 Lisp_Object type
= AREF (font
, FONT_TYPE_INDEX
);
2993 struct font_driver_list
*driver_list
;
2995 for (driver_list
= f
->font_driver_list
;
2996 driver_list
&& ! EQ (driver_list
->driver
->type
, type
);
2997 driver_list
= driver_list
->next
);
3000 if (! driver_list
->driver
->has_char
)
3002 return driver_list
->driver
->has_char (font
, c
);
3005 font_assert (FONT_OBJECT_P (font
));
3006 fontp
= XFONT_OBJECT (font
);
3007 if (fontp
->driver
->has_char
)
3009 int result
= fontp
->driver
->has_char (font
, c
);
3014 return (fontp
->driver
->encode_char (fontp
, c
) != FONT_INVALID_CODE
);
3018 /* Return the glyph ID of FONT_OBJECT for character C. */
3021 font_encode_char (font_object
, c
)
3022 Lisp_Object font_object
;
3027 font_assert (FONT_OBJECT_P (font_object
));
3028 font
= XFONT_OBJECT (font_object
);
3029 return font
->driver
->encode_char (font
, c
);
3033 /* Return the name of FONT_OBJECT. */
3036 font_get_name (font_object
)
3037 Lisp_Object font_object
;
3039 font_assert (FONT_OBJECT_P (font_object
));
3040 return AREF (font_object
, FONT_NAME_INDEX
);
3044 /* Return the specification of FONT_OBJECT. */
3047 font_get_spec (font_object
)
3048 Lisp_Object font_object
;
3050 Lisp_Object spec
= font_make_spec ();
3053 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
3054 ASET (spec
, i
, AREF (font_object
, i
));
3055 ASET (spec
, FONT_SIZE_INDEX
,
3056 make_number (XFONT_OBJECT (font_object
)->pixel_size
));
3061 /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME
3062 could not be parsed by font_parse_name, return Qnil. */
3065 font_spec_from_name (font_name
)
3066 Lisp_Object font_name
;
3068 Lisp_Object spec
= Ffont_spec (0, NULL
);
3070 CHECK_STRING (font_name
);
3071 if (font_parse_name ((char *) SDATA (font_name
), spec
) == -1)
3073 font_put_extra (spec
, QCname
, font_name
);
3079 font_clear_prop (attrs
, prop
)
3081 enum font_property_index prop
;
3083 Lisp_Object font
= attrs
[LFACE_FONT_INDEX
];
3087 if (! NILP (Ffont_get (font
, QCname
)))
3089 font
= Fcopy_font_spec (font
);
3090 font_put_extra (font
, QCname
, Qnil
);
3093 if (NILP (AREF (font
, prop
))
3094 && prop
!= FONT_FAMILY_INDEX
3095 && prop
!= FONT_FOUNDRY_INDEX
3096 && prop
!= FONT_WIDTH_INDEX
3097 && prop
!= FONT_SIZE_INDEX
)
3099 if (EQ (font
, attrs
[LFACE_FONT_INDEX
]))
3100 font
= Fcopy_font_spec (font
);
3101 ASET (font
, prop
, Qnil
);
3102 if (prop
== FONT_FAMILY_INDEX
|| prop
== FONT_FOUNDRY_INDEX
)
3104 if (prop
== FONT_FAMILY_INDEX
)
3106 ASET (font
, FONT_FOUNDRY_INDEX
, Qnil
);
3107 /* If we are setting the font family, we must also clear
3108 FONT_WIDTH_INDEX to avoid rejecting families that lack
3109 support for some widths. */
3110 ASET (font
, FONT_WIDTH_INDEX
, Qnil
);
3112 ASET (font
, FONT_ADSTYLE_INDEX
, Qnil
);
3113 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
3114 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
3115 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3116 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3117 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3119 else if (prop
== FONT_SIZE_INDEX
)
3121 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3122 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3123 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3125 else if (prop
== FONT_WIDTH_INDEX
)
3126 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3127 attrs
[LFACE_FONT_INDEX
] = font
;
3131 font_update_lface (f
, attrs
)
3137 spec
= attrs
[LFACE_FONT_INDEX
];
3138 if (! FONT_SPEC_P (spec
))
3141 if (! NILP (AREF (spec
, FONT_FOUNDRY_INDEX
)))
3142 attrs
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (spec
, FONT_FOUNDRY_INDEX
));
3143 if (! NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3144 attrs
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (spec
, FONT_FAMILY_INDEX
));
3145 if (! NILP (AREF (spec
, FONT_WEIGHT_INDEX
)))
3146 attrs
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (spec
);
3147 if (! NILP (AREF (spec
, FONT_SLANT_INDEX
)))
3148 attrs
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (spec
);
3149 if (! NILP (AREF (spec
, FONT_WIDTH_INDEX
)))
3150 attrs
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (spec
);
3151 if (! NILP (AREF (spec
, FONT_SIZE_INDEX
)))
3155 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
3160 val
= Ffont_get (spec
, QCdpi
);
3163 point
= PIXEL_TO_POINT (XINT (AREF (spec
, FONT_SIZE_INDEX
)) * 10,
3165 attrs
[LFACE_HEIGHT_INDEX
] = make_number (point
);
3167 else if (FLOATP (AREF (spec
, FONT_SIZE_INDEX
)))
3169 point
= XFLOAT_DATA (AREF (spec
, FONT_SIZE_INDEX
)) * 10;
3170 attrs
[LFACE_HEIGHT_INDEX
] = make_number (point
);
3176 /* Selecte a font from ENTITIES that supports C and matches best with
3177 ATTRS and PIXEL_SIZE. */
3180 font_select_entity (frame
, entities
, attrs
, pixel_size
, c
)
3181 Lisp_Object frame
, entities
, *attrs
;
3184 Lisp_Object font_entity
;
3186 Lisp_Object props
[FONT_REGISTRY_INDEX
+ 1] ;
3188 FRAME_PTR f
= XFRAME (frame
);
3190 if (ASIZE (entities
) == 1)
3192 font_entity
= AREF (entities
, 0);
3194 || (result
= font_has_char (f
, font_entity
, c
)) > 0)
3199 /* Sort fonts by properties specified in ATTRS. */
3200 prefer
= scratch_font_prefer
;
3202 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
3203 ASET (prefer
, i
, Qnil
);
3204 if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3206 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3208 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_SIZE_INDEX
; i
++)
3209 ASET (prefer
, i
, AREF (face_font
, i
));
3211 if (NILP (AREF (prefer
, FONT_WEIGHT_INDEX
)))
3212 FONT_SET_STYLE (prefer
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
3213 if (NILP (AREF (prefer
, FONT_SLANT_INDEX
)))
3214 FONT_SET_STYLE (prefer
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
3215 if (NILP (AREF (prefer
, FONT_WIDTH_INDEX
)))
3216 FONT_SET_STYLE (prefer
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
3217 ASET (prefer
, FONT_SIZE_INDEX
, make_number (pixel_size
));
3219 return font_sort_entites (entities
, prefer
, frame
, c
);
3222 /* Return a font-entity satisfying SPEC and best matching with face's
3223 font related attributes in ATTRS. C, if not negative, is a
3224 character that the entity must support. */
3227 font_find_for_lface (f
, attrs
, spec
, c
)
3234 Lisp_Object frame
, entities
, val
, props
[FONT_REGISTRY_INDEX
+ 1] ;
3235 Lisp_Object size
, foundry
[3], *family
, registry
[3], adstyle
[3];
3237 int i
, j
, k
, l
, result
;
3239 registry
[0] = AREF (spec
, FONT_REGISTRY_INDEX
);
3240 if (NILP (registry
[0]))
3242 registry
[0] = DEFAULT_ENCODING
;
3243 registry
[1] = Qascii_0
;
3244 registry
[2] = null_vector
;
3247 registry
[1] = null_vector
;
3249 if (c
>= 0 && ! NILP (AREF (spec
, FONT_REGISTRY_INDEX
)))
3251 struct charset
*encoding
, *repertory
;
3253 if (font_registry_charsets (AREF (spec
, FONT_REGISTRY_INDEX
),
3254 &encoding
, &repertory
) < 0)
3258 if (ENCODE_CHAR (repertory
, c
) == CHARSET_INVALID_CODE (repertory
))
3260 /* Any font of this registry support C. So, let's
3261 suppress the further checking. */
3264 else if (c
> encoding
->max_char
)
3268 work
= Fcopy_font_spec (spec
);
3269 XSETFRAME (frame
, f
);
3270 size
= AREF (spec
, FONT_SIZE_INDEX
);
3271 pixel_size
= font_pixel_size (f
, spec
);
3272 if (pixel_size
== 0)
3274 double pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3276 pixel_size
= POINT_TO_PIXEL (pt
/ 10, f
->resy
);
3278 ASET (work
, FONT_SIZE_INDEX
, Qnil
);
3279 foundry
[0] = AREF (work
, FONT_FOUNDRY_INDEX
);
3280 if (! NILP (foundry
[0]))
3281 foundry
[1] = null_vector
;
3282 else if (STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]))
3284 val
= attrs
[LFACE_FOUNDRY_INDEX
];
3285 foundry
[0] = font_intern_prop ((char *) SDATA (val
), SBYTES (val
), 1);
3287 foundry
[2] = null_vector
;
3290 foundry
[0] = Qnil
, foundry
[1] = null_vector
;
3292 adstyle
[0] = AREF (work
, FONT_ADSTYLE_INDEX
);
3293 if (! NILP (adstyle
[0]))
3294 adstyle
[1] = null_vector
;
3295 else if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3297 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3299 if (! NILP (AREF (face_font
, FONT_ADSTYLE_INDEX
)))
3301 adstyle
[0] = AREF (face_font
, FONT_ADSTYLE_INDEX
);
3303 adstyle
[2] = null_vector
;
3306 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3309 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3312 val
= AREF (work
, FONT_FAMILY_INDEX
);
3313 if (NILP (val
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
3315 val
= attrs
[LFACE_FAMILY_INDEX
];
3316 val
= font_intern_prop ((char *) SDATA (val
), SBYTES (val
), 1);
3320 family
= alloca ((sizeof family
[0]) * 2);
3322 family
[1] = null_vector
; /* terminator. */
3327 = Fassoc_string (val
, Vface_alternative_font_family_alist
,
3335 if (! NILP (alters
))
3337 family
= alloca ((sizeof family
[0]) * (XINT (Flength (alters
)) + 2));
3338 for (i
= 0; CONSP (alters
); i
++, alters
= XCDR (alters
))
3339 family
[i
] = XCAR (alters
);
3340 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3342 family
[i
] = null_vector
;
3346 family
= alloca ((sizeof family
[0]) * 3);
3349 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3351 family
[i
] = null_vector
;
3355 for (i
= 0; SYMBOLP (family
[i
]); i
++)
3357 ASET (work
, FONT_FAMILY_INDEX
, family
[i
]);
3358 for (j
= 0; SYMBOLP (foundry
[j
]); j
++)
3360 ASET (work
, FONT_FOUNDRY_INDEX
, foundry
[j
]);
3361 for (k
= 0; SYMBOLP (registry
[k
]); k
++)
3363 ASET (work
, FONT_REGISTRY_INDEX
, registry
[k
]);
3364 for (l
= 0; SYMBOLP (adstyle
[l
]); l
++)
3366 ASET (work
, FONT_ADSTYLE_INDEX
, adstyle
[l
]);
3367 entities
= font_list_entities (frame
, work
);
3368 if (ASIZE (entities
) > 0)
3370 val
= font_select_entity (frame
, entities
,
3371 attrs
, pixel_size
, c
);
3384 font_open_for_lface (f
, entity
, attrs
, spec
)
3392 if (INTEGERP (AREF (entity
, FONT_SIZE_INDEX
))
3393 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
3394 size
= XINT (AREF (entity
, FONT_SIZE_INDEX
));
3395 else if (FONT_SPEC_P (spec
) && ! NILP (AREF (spec
, FONT_SIZE_INDEX
)))
3396 size
= font_pixel_size (f
, spec
);
3400 if (INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]))
3401 pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3404 struct face
*def
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3405 Lisp_Object height
= def
->lface
[LFACE_HEIGHT_INDEX
];
3406 if (INTEGERP (height
))
3409 abort(); /* We should never end up here. */
3413 size
= POINT_TO_PIXEL (pt
, f
->resy
);
3417 Lisp_Object ffsize
= get_frame_param(f
, Qfontsize
);
3418 size
= NUMBERP (ffsize
) ? POINT_TO_PIXEL (XINT (ffsize
), f
->resy
) : 0;
3422 return font_open_entity (f
, entity
, size
);
3426 /* Find a font satisfying SPEC and best matching with face's
3427 attributes in ATTRS on FRAME, and return the opened
3431 font_load_for_lface (f
, attrs
, spec
)
3433 Lisp_Object
*attrs
, spec
;
3437 /* We assume that a font that supports 'A' supports ASCII chars. */
3438 entity
= font_find_for_lface (f
, attrs
, spec
, 'A');
3441 /* No font is listed for SPEC, but each font-backend may have
3442 the different criteria about "font matching". So, try
3444 entity
= font_matching_entity (f
, attrs
, spec
);
3448 return font_open_for_lface (f
, entity
, attrs
, spec
);
3452 /* Make FACE on frame F ready to use the font opened for FACE. */
3455 font_prepare_for_face (f
, face
)
3459 if (face
->font
->driver
->prepare_face
)
3460 face
->font
->driver
->prepare_face (f
, face
);
3464 /* Make FACE on frame F stop using the font opened for FACE. */
3467 font_done_for_face (f
, face
)
3471 if (face
->font
->driver
->done_face
)
3472 face
->font
->driver
->done_face (f
, face
);
3477 /* Open a font matching with font-spec SPEC on frame F. If no proper
3478 font is found, return Qnil. */
3481 font_open_by_spec (f
, spec
)
3485 Lisp_Object attrs
[LFACE_VECTOR_SIZE
];
3487 /* We set up the default font-related attributes of a face to prefer
3489 attrs
[LFACE_FAMILY_INDEX
] = attrs
[LFACE_FOUNDRY_INDEX
] = Qnil
;
3490 attrs
[LFACE_SWIDTH_INDEX
] = attrs
[LFACE_WEIGHT_INDEX
]
3491 = attrs
[LFACE_SLANT_INDEX
] = Qnormal
;
3493 attrs
[LFACE_HEIGHT_INDEX
] = make_number (120);
3495 attrs
[LFACE_HEIGHT_INDEX
] = make_number (0);
3497 attrs
[LFACE_FONT_INDEX
] = Qnil
;
3499 return font_load_for_lface (f
, attrs
, spec
);
3503 /* Open a font matching with NAME on frame F. If no proper font is
3504 found, return Qnil. */
3507 font_open_by_name (f
, name
)
3511 Lisp_Object args
[2];
3515 args
[1] = make_unibyte_string (name
, strlen (name
));
3516 spec
= Ffont_spec (2, args
);
3517 return font_open_by_spec (f
, spec
);
3521 /* Register font-driver DRIVER. This function is used in two ways.
3523 The first is with frame F non-NULL. In this case, make DRIVER
3524 available (but not yet activated) on F. All frame creaters
3525 (e.g. Fx_create_frame) must call this function at least once with
3526 an available font-driver.
3528 The second is with frame F NULL. In this case, DRIVER is globally
3529 registered in the variable `font_driver_list'. All font-driver
3530 implementations must call this function in its syms_of_XXXX
3531 (e.g. syms_of_xfont). */
3534 register_font_driver (driver
, f
)
3535 struct font_driver
*driver
;
3538 struct font_driver_list
*root
= f
? f
->font_driver_list
: font_driver_list
;
3539 struct font_driver_list
*prev
, *list
;
3541 if (f
&& ! driver
->draw
)
3542 error ("Unusable font driver for a frame: %s",
3543 SDATA (SYMBOL_NAME (driver
->type
)));
3545 for (prev
= NULL
, list
= root
; list
; prev
= list
, list
= list
->next
)
3546 if (EQ (list
->driver
->type
, driver
->type
))
3547 error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver
->type
)));
3549 list
= xmalloc (sizeof (struct font_driver_list
));
3551 list
->driver
= driver
;
3556 f
->font_driver_list
= list
;
3558 font_driver_list
= list
;
3564 free_font_driver_list (f
)
3567 struct font_driver_list
*list
, *next
;
3569 for (list
= f
->font_driver_list
; list
; list
= next
)
3574 f
->font_driver_list
= NULL
;
3578 /* Make the frame F use font backends listed in NEW_DRIVERS (list of
3579 symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all
3580 available font drivers. If NEW_DRIVERS is nil, finalize all drivers.
3582 A caller must free all realized faces if any in advance. The
3583 return value is a list of font backends actually made used on
3587 font_update_drivers (f
, new_drivers
)
3589 Lisp_Object new_drivers
;
3591 Lisp_Object active_drivers
= Qnil
;
3592 struct font_driver
*driver
;
3593 struct font_driver_list
*list
;
3595 /* At first, turn off non-requested drivers, and turn on requested
3597 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3599 driver
= list
->driver
;
3600 if ((EQ (new_drivers
, Qt
) || ! NILP (Fmemq (driver
->type
, new_drivers
)))
3605 if (driver
->end_for_frame
)
3606 driver
->end_for_frame (f
);
3607 font_finish_cache (f
, driver
);
3612 if (! driver
->start_for_frame
3613 || driver
->start_for_frame (f
) == 0)
3615 font_prepare_cache (f
, driver
);
3622 if (NILP (new_drivers
))
3625 if (! EQ (new_drivers
, Qt
))
3627 /* Re-order the driver list according to new_drivers. */
3628 struct font_driver_list
**list_table
, **next
;
3632 list_table
= alloca (sizeof list_table
[0] * (num_font_drivers
+ 1));
3633 for (i
= 0, tail
= new_drivers
; ! NILP (tail
); tail
= XCDR (tail
))
3635 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3636 if (list
->on
&& EQ (list
->driver
->type
, XCAR (tail
)))
3639 list_table
[i
++] = list
;
3641 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3643 list_table
[i
++] = list
;
3644 list_table
[i
] = NULL
;
3646 next
= &f
->font_driver_list
;
3647 for (i
= 0; list_table
[i
]; i
++)
3649 *next
= list_table
[i
];
3650 next
= &(*next
)->next
;
3655 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3657 active_drivers
= nconc2 (active_drivers
,
3658 Fcons (list
->driver
->type
, Qnil
));
3659 return active_drivers
;
3663 font_put_frame_data (f
, driver
, data
)
3665 struct font_driver
*driver
;
3668 struct font_data_list
*list
, *prev
;
3670 for (prev
= NULL
, list
= f
->font_data_list
; list
;
3671 prev
= list
, list
= list
->next
)
3672 if (list
->driver
== driver
)
3679 prev
->next
= list
->next
;
3681 f
->font_data_list
= list
->next
;
3689 list
= xmalloc (sizeof (struct font_data_list
));
3690 list
->driver
= driver
;
3691 list
->next
= f
->font_data_list
;
3692 f
->font_data_list
= list
;
3700 font_get_frame_data (f
, driver
)
3702 struct font_driver
*driver
;
3704 struct font_data_list
*list
;
3706 for (list
= f
->font_data_list
; list
; list
= list
->next
)
3707 if (list
->driver
== driver
)
3715 /* Return the font used to draw character C by FACE at buffer position
3716 POS in window W. If STRING is non-nil, it is a string containing C
3717 at index POS. If C is negative, get C from the current buffer or
3721 font_at (c
, pos
, face
, w
, string
)
3730 Lisp_Object font_object
;
3732 multibyte
= (NILP (string
)
3733 ? ! NILP (current_buffer
->enable_multibyte_characters
)
3734 : STRING_MULTIBYTE (string
));
3741 EMACS_INT pos_byte
= CHAR_TO_BYTE (pos
);
3743 c
= FETCH_CHAR (pos_byte
);
3746 c
= FETCH_BYTE (pos
);
3752 multibyte
= STRING_MULTIBYTE (string
);
3755 EMACS_INT pos_byte
= string_char_to_byte (string
, pos
);
3757 str
= SDATA (string
) + pos_byte
;
3758 c
= STRING_CHAR (str
, 0);
3761 c
= SDATA (string
)[pos
];
3765 f
= XFRAME (w
->frame
);
3766 if (! FRAME_WINDOW_P (f
))
3773 if (STRINGP (string
))
3774 face_id
= face_at_string_position (w
, string
, pos
, 0, -1, -1, &endptr
,
3775 DEFAULT_FACE_ID
, 0);
3777 face_id
= face_at_buffer_position (w
, pos
, -1, -1, &endptr
,
3779 face
= FACE_FROM_ID (f
, face_id
);
3783 int face_id
= FACE_FOR_CHAR (f
, face
, c
, pos
, string
);
3784 face
= FACE_FROM_ID (f
, face_id
);
3789 XSETFONT (font_object
, face
->font
);
3794 #ifdef HAVE_WINDOW_SYSTEM
3796 /* Check how many characters after POS (at most to *LIMIT) can be
3797 displayed by the same font on the window W. FACE, if non-NULL, is
3798 the face selected for the character at POS. If STRING is not nil,
3799 it is the string to check instead of the current buffer. In that
3800 case, FACE must be not NULL.
3802 The return value is the font-object for the character at POS.
3803 *LIMIT is set to the position where that font can't be used.
3805 It is assured that the current buffer (or STRING) is multibyte. */
3808 font_range (pos
, limit
, w
, face
, string
)
3809 EMACS_INT pos
, *limit
;
3814 EMACS_INT pos_byte
, ignore
, start
, start_byte
;
3816 Lisp_Object font_object
= Qnil
;
3820 pos_byte
= CHAR_TO_BYTE (pos
);
3825 face_id
= face_at_buffer_position (w
, pos
, 0, 0, &ignore
, *limit
, 0);
3826 face
= FACE_FROM_ID (XFRAME (w
->frame
), face_id
);
3832 pos_byte
= string_char_to_byte (string
, pos
);
3835 start
= pos
, start_byte
= pos_byte
;
3836 while (pos
< *limit
)
3838 Lisp_Object category
;
3841 FETCH_CHAR_ADVANCE_NO_CHECK (c
, pos
, pos_byte
);
3843 FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c
, string
, pos
, pos_byte
);
3844 if (NILP (font_object
))
3846 font_object
= font_for_char (face
, c
, pos
- 1, string
);
3847 if (NILP (font_object
))
3852 category
= CHAR_TABLE_REF (Vunicode_category_table
, c
);
3853 if (! EQ (category
, QCf
)
3854 && ! CHAR_VARIATION_SELECTOR_P (c
)
3855 && font_encode_char (font_object
, c
) == FONT_INVALID_CODE
)
3857 Lisp_Object f
= font_for_char (face
, c
, pos
- 1, string
);
3858 EMACS_INT i
, i_byte
;
3866 i
= start
, i_byte
= start_byte
;
3871 FETCH_CHAR_ADVANCE_NO_CHECK (c
, i
, i_byte
);
3873 FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c
, string
, i
, i_byte
);
3874 category
= CHAR_TABLE_REF (Vunicode_category_table
, c
);
3875 if (! EQ (category
, QCf
)
3876 && ! CHAR_VARIATION_SELECTOR_P (c
)
3877 && font_encode_char (f
, c
) == FONT_INVALID_CODE
)
3893 DEFUN ("fontp", Ffontp
, Sfontp
, 1, 2, 0,
3894 doc
: /* Return t if OBJECT is a font-spec, font-entity, or font-object.
3895 Return nil otherwise.
3896 Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check
3897 which kind of font it is. It must be one of `font-spec', `font-entity',
3899 (object
, extra_type
)
3900 Lisp_Object object
, extra_type
;
3902 if (NILP (extra_type
))
3903 return (FONTP (object
) ? Qt
: Qnil
);
3904 if (EQ (extra_type
, Qfont_spec
))
3905 return (FONT_SPEC_P (object
) ? Qt
: Qnil
);
3906 if (EQ (extra_type
, Qfont_entity
))
3907 return (FONT_ENTITY_P (object
) ? Qt
: Qnil
);
3908 if (EQ (extra_type
, Qfont_object
))
3909 return (FONT_OBJECT_P (object
) ? Qt
: Qnil
);
3910 wrong_type_argument (intern ("font-extra-type"), extra_type
);
3913 DEFUN ("font-spec", Ffont_spec
, Sfont_spec
, 0, MANY
, 0,
3914 doc
: /* Return a newly created font-spec with arguments as properties.
3916 ARGS must come in pairs KEY VALUE of font properties. KEY must be a
3917 valid font property name listed below:
3919 `:family', `:weight', `:slant', `:width'
3921 They are the same as face attributes of the same name. See
3922 `set-face-attribute'.
3926 VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''.
3930 VALUE must be a string or a symbol specifying the additional
3931 typographic style information of a font, e.g. ``sans''.
3935 VALUE must be a string or a symbol specifying the charset registry and
3936 encoding of a font, e.g. ``iso8859-1''.
3940 VALUE must be a non-negative integer or a floating point number
3941 specifying the font size. It specifies the font size in pixels (if
3942 VALUE is an integer), or in points (if VALUE is a float).
3946 VALUE must be a string of XLFD-style or fontconfig-style font name.
3950 VALUE must be a symbol representing a script that the font must
3951 support. It may be a symbol representing a subgroup of a script
3952 listed in the variable `script-representative-chars'.
3956 VALUE must be a symbol of two-letter ISO-639 language names,
3961 VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify
3962 required OpenType features.
3964 SCRIPT-TAG: OpenType script tag symbol (e.g. `deva').
3965 LANGSYS-TAG: OpenType language system tag symbol,
3966 or nil for the default language system.
3967 GSUB: List of OpenType GSUB feature tag symbols, or nil if none required.
3968 GPOS: List of OpenType GPOS feature tag symbols, or nil if none required.
3970 GSUB and GPOS may contain `nil' element. In such a case, the font
3971 must not have any of the remaining elements.
3973 For instance, if the VALUE is `(thai nil nil (mark))', the font must
3974 be an OpenType font, and whose GPOS table of `thai' script's default
3975 language system must contain `mark' feature.
3977 usage: (font-spec ARGS...) */)
3982 Lisp_Object spec
= font_make_spec ();
3985 for (i
= 0; i
< nargs
; i
+= 2)
3987 Lisp_Object key
= args
[i
], val
= args
[i
+ 1];
3989 if (EQ (key
, QCname
))
3992 font_parse_name ((char *) SDATA (val
), spec
);
3993 font_put_extra (spec
, key
, val
);
3997 int idx
= get_font_prop_index (key
);
4001 val
= font_prop_validate (idx
, Qnil
, val
);
4002 if (idx
< FONT_EXTRA_INDEX
)
4003 ASET (spec
, idx
, val
);
4005 font_put_extra (spec
, key
, val
);
4008 font_put_extra (spec
, key
, font_prop_validate (0, key
, val
));
4014 DEFUN ("copy-font-spec", Fcopy_font_spec
, Scopy_font_spec
, 1, 1, 0,
4015 doc
: /* Return a copy of FONT as a font-spec. */)
4019 Lisp_Object new_spec
, tail
, prev
, extra
;
4023 new_spec
= font_make_spec ();
4024 for (i
= 1; i
< FONT_EXTRA_INDEX
; i
++)
4025 ASET (new_spec
, i
, AREF (font
, i
));
4026 extra
= Fcopy_sequence (AREF (font
, FONT_EXTRA_INDEX
));
4027 /* We must remove :font-entity property. */
4028 for (prev
= Qnil
, tail
= extra
; CONSP (tail
); prev
= tail
, tail
= XCDR (tail
))
4029 if (EQ (XCAR (XCAR (tail
)), QCfont_entity
))
4032 extra
= XCDR (extra
);
4034 XSETCDR (prev
, XCDR (tail
));
4037 ASET (new_spec
, FONT_EXTRA_INDEX
, extra
);
4041 DEFUN ("merge-font-spec", Fmerge_font_spec
, Smerge_font_spec
, 2, 2, 0,
4042 doc
: /* Merge font-specs FROM and TO, and return a new font-spec.
4043 Every specified properties in FROM override the corresponding
4044 properties in TO. */)
4046 Lisp_Object from
, to
;
4048 Lisp_Object extra
, tail
;
4053 to
= Fcopy_font_spec (to
);
4054 for (i
= 0; i
< FONT_EXTRA_INDEX
; i
++)
4055 ASET (to
, i
, AREF (from
, i
));
4056 extra
= AREF (to
, FONT_EXTRA_INDEX
);
4057 for (tail
= AREF (from
, FONT_EXTRA_INDEX
); CONSP (tail
); tail
= XCDR (tail
))
4058 if (! EQ (XCAR (XCAR (tail
)), Qfont_entity
))
4060 Lisp_Object slot
= assq_no_quit (XCAR (XCAR (tail
)), extra
);
4063 XSETCDR (slot
, XCDR (XCAR (tail
)));
4065 extra
= Fcons (Fcons (XCAR (XCAR (tail
)), XCDR (XCAR (tail
))), extra
);
4067 ASET (to
, FONT_EXTRA_INDEX
, extra
);
4071 DEFUN ("font-get", Ffont_get
, Sfont_get
, 2, 2, 0,
4072 doc
: /* Return the value of FONT's property KEY.
4073 FONT is a font-spec, a font-entity, or a font-object.
4074 KEY must be one of these symbols:
4075 :family, :weight, :slant, :width, :foundry, :adstyle, :registry,
4076 :size, :name, :script
4077 See the documentation of `font-spec' for their meanings.
4078 If FONT is a font-entity or font-object, the value of :script may be
4079 a list of scripts that are supported by the font. */)
4081 Lisp_Object font
, key
;
4088 idx
= get_font_prop_index (key
);
4089 if (idx
>= FONT_WEIGHT_INDEX
&& idx
<= FONT_WIDTH_INDEX
)
4090 return font_style_symbolic (font
, idx
, 0);
4091 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
4092 return AREF (font
, idx
);
4093 return Fcdr (Fassq (key
, AREF (font
, FONT_EXTRA_INDEX
)));
4096 #ifdef HAVE_WINDOW_SYSTEM
4098 DEFUN ("font-face-attributes", Ffont_face_attributes
, Sfont_face_attributes
, 1, 2, 0,
4099 doc
: /* Return a plist of face attributes generated by FONT.
4100 FONT is a font name, a font-spec, a font-entity, or a font-object.
4101 The return value is a list of the form
4103 \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH)
4105 where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values
4106 compatible with `set-face-attribute'. Some of these key-attribute pairs
4107 may be omitted from the list if they are not specified by FONT.
4109 The optional argument FRAME specifies the frame that the face attributes
4110 are to be displayed on. If omitted, the selected frame is used. */)
4112 Lisp_Object font
, frame
;
4115 Lisp_Object plist
[10];
4120 frame
= selected_frame
;
4121 CHECK_LIVE_FRAME (frame
);
4126 int fontset
= fs_query_fontset (font
, 0);
4127 Lisp_Object name
= font
;
4129 font
= fontset_ascii (fontset
);
4130 font
= font_spec_from_name (name
);
4132 signal_error ("Invalid font name", name
);
4134 else if (! FONTP (font
))
4135 signal_error ("Invalid font object", font
);
4137 val
= AREF (font
, FONT_FAMILY_INDEX
);
4140 plist
[n
++] = QCfamily
;
4141 plist
[n
++] = SYMBOL_NAME (val
);
4144 val
= AREF (font
, FONT_SIZE_INDEX
);
4147 Lisp_Object font_dpi
= AREF (font
, FONT_DPI_INDEX
);
4148 int dpi
= INTEGERP (font_dpi
) ? XINT (font_dpi
) : f
->resy
;
4149 plist
[n
++] = QCheight
;
4150 plist
[n
++] = make_number (PIXEL_TO_POINT (XINT (val
) * 10, dpi
));
4152 else if (FLOATP (val
))
4154 plist
[n
++] = QCheight
;
4155 plist
[n
++] = make_number (10 * (int) XFLOAT_DATA (val
));
4158 val
= FONT_WEIGHT_FOR_FACE (font
);
4161 plist
[n
++] = QCweight
;
4165 val
= FONT_SLANT_FOR_FACE (font
);
4168 plist
[n
++] = QCslant
;
4172 val
= FONT_WIDTH_FOR_FACE (font
);
4175 plist
[n
++] = QCwidth
;
4179 return Flist (n
, plist
);
4184 DEFUN ("font-put", Ffont_put
, Sfont_put
, 3, 3, 0,
4185 doc
: /* Set one property of FONT-SPEC: give property PROP value VAL. */)
4186 (font_spec
, prop
, val
)
4187 Lisp_Object font_spec
, prop
, val
;
4191 CHECK_FONT_SPEC (font_spec
);
4192 idx
= get_font_prop_index (prop
);
4193 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
4194 ASET (font_spec
, idx
, font_prop_validate (idx
, Qnil
, val
));
4196 font_put_extra (font_spec
, prop
, font_prop_validate (0, prop
, val
));
4200 DEFUN ("list-fonts", Flist_fonts
, Slist_fonts
, 1, 4, 0,
4201 doc
: /* List available fonts matching FONT-SPEC on the current frame.
4202 Optional 2nd argument FRAME specifies the target frame.
4203 Optional 3rd argument NUM, if non-nil, limits the number of returned fonts.
4204 Optional 4th argument PREFER, if non-nil, is a font-spec to
4205 control the order of the returned list. Fonts are sorted by
4206 how close they are to PREFER. */)
4207 (font_spec
, frame
, num
, prefer
)
4208 Lisp_Object font_spec
, frame
, num
, prefer
;
4210 Lisp_Object vec
, list
, tail
;
4214 frame
= selected_frame
;
4215 CHECK_LIVE_FRAME (frame
);
4216 CHECK_FONT_SPEC (font_spec
);
4224 if (! NILP (prefer
))
4225 CHECK_FONT_SPEC (prefer
);
4227 vec
= font_list_entities (frame
, font_spec
);
4232 return Fcons (AREF (vec
, 0), Qnil
);
4234 if (! NILP (prefer
))
4235 vec
= font_sort_entites (vec
, prefer
, frame
, 0);
4237 list
= tail
= Fcons (AREF (vec
, 0), Qnil
);
4238 if (n
== 0 || n
> len
)
4240 for (i
= 1; i
< n
; i
++)
4242 Lisp_Object val
= Fcons (AREF (vec
, i
), Qnil
);
4244 XSETCDR (tail
, val
);
4250 DEFUN ("font-family-list", Ffont_family_list
, Sfont_family_list
, 0, 1, 0,
4251 doc
: /* List available font families on the current frame.
4252 Optional argument FRAME, if non-nil, specifies the target frame. */)
4257 struct font_driver_list
*driver_list
;
4261 frame
= selected_frame
;
4262 CHECK_LIVE_FRAME (frame
);
4265 for (driver_list
= f
->font_driver_list
; driver_list
;
4266 driver_list
= driver_list
->next
)
4267 if (driver_list
->driver
->list_family
)
4269 Lisp_Object val
= driver_list
->driver
->list_family (frame
);
4270 Lisp_Object tail
= list
;
4272 for (; CONSP (val
); val
= XCDR (val
))
4273 if (NILP (Fmemq (XCAR (val
), tail
))
4274 && SYMBOLP (XCAR (val
)))
4275 list
= Fcons (SYMBOL_NAME (XCAR (val
)), list
);
4280 DEFUN ("find-font", Ffind_font
, Sfind_font
, 1, 2, 0,
4281 doc
: /* Return a font-entity matching with FONT-SPEC on the current frame.
4282 Optional 2nd argument FRAME, if non-nil, specifies the target frame. */)
4284 Lisp_Object font_spec
, frame
;
4286 Lisp_Object val
= Flist_fonts (font_spec
, frame
, make_number (1), Qnil
);
4293 DEFUN ("font-xlfd-name", Ffont_xlfd_name
, Sfont_xlfd_name
, 1, 2, 0,
4294 doc
: /* Return XLFD name of FONT.
4295 FONT is a font-spec, font-entity, or font-object.
4296 If the name is too long for XLFD (maximum 255 chars), return nil.
4297 If the 2nd optional arg FOLD-WILDCARDS is non-nil,
4298 the consecutive wildcards are folded to one. */)
4299 (font
, fold_wildcards
)
4300 Lisp_Object font
, fold_wildcards
;
4307 if (FONT_OBJECT_P (font
))
4309 Lisp_Object font_name
= AREF (font
, FONT_NAME_INDEX
);
4311 if (STRINGP (font_name
)
4312 && SDATA (font_name
)[0] == '-')
4314 if (NILP (fold_wildcards
))
4316 strcpy (name
, (char *) SDATA (font_name
));
4319 pixel_size
= XFONT_OBJECT (font
)->pixel_size
;
4321 if (font_unparse_xlfd (font
, pixel_size
, name
, 256) < 0)
4324 if (! NILP (fold_wildcards
))
4326 char *p0
= name
, *p1
;
4328 while ((p1
= strstr (p0
, "-*-*")))
4330 strcpy (p1
, p1
+ 2);
4335 return build_string (name
);
4338 DEFUN ("clear-font-cache", Fclear_font_cache
, Sclear_font_cache
, 0, 0, 0,
4339 doc
: /* Clear font cache. */)
4342 Lisp_Object list
, frame
;
4344 FOR_EACH_FRAME (list
, frame
)
4346 FRAME_PTR f
= XFRAME (frame
);
4347 struct font_driver_list
*driver_list
= f
->font_driver_list
;
4349 for (; driver_list
; driver_list
= driver_list
->next
)
4350 if (driver_list
->on
)
4352 Lisp_Object cache
= driver_list
->driver
->get_cache (f
);
4357 && ! EQ (XCAR (XCAR (val
)), driver_list
->driver
->type
))
4359 font_assert (! NILP (val
));
4360 val
= XCDR (XCAR (val
));
4361 if (XINT (XCAR (val
)) == 0)
4363 font_clear_cache (f
, XCAR (val
), driver_list
->driver
);
4364 XSETCDR (cache
, XCDR (val
));
4374 font_fill_lglyph_metrics (glyph
, font_object
)
4375 Lisp_Object glyph
, font_object
;
4377 struct font
*font
= XFONT_OBJECT (font_object
);
4379 /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */
4380 EMACS_INT ecode
= font
->driver
->encode_char (font
, LGLYPH_CHAR (glyph
));
4381 struct font_metrics metrics
;
4383 LGLYPH_SET_CODE (glyph
, ecode
);
4385 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4386 LGLYPH_SET_LBEARING (glyph
, metrics
.lbearing
);
4387 LGLYPH_SET_RBEARING (glyph
, metrics
.rbearing
);
4388 LGLYPH_SET_WIDTH (glyph
, metrics
.width
);
4389 LGLYPH_SET_ASCENT (glyph
, metrics
.ascent
);
4390 LGLYPH_SET_DESCENT (glyph
, metrics
.descent
);
4394 DEFUN ("font-shape-gstring", Ffont_shape_gstring
, Sfont_shape_gstring
, 1, 1, 0,
4395 doc
: /* Shape the glyph-string GSTRING.
4396 Shaping means substituting glyphs and/or adjusting positions of glyphs
4397 to get the correct visual image of character sequences set in the
4398 header of the glyph-string.
4400 If the shaping was successful, the value is GSTRING itself or a newly
4401 created glyph-string. Otherwise, the value is nil. */)
4403 Lisp_Object gstring
;
4406 Lisp_Object font_object
, n
, glyph
;
4409 if (! composition_gstring_p (gstring
))
4410 signal_error ("Invalid glyph-string: ", gstring
);
4411 if (! NILP (LGSTRING_ID (gstring
)))
4413 font_object
= LGSTRING_FONT (gstring
);
4414 CHECK_FONT_OBJECT (font_object
);
4415 font
= XFONT_OBJECT (font_object
);
4416 if (! font
->driver
->shape
)
4419 /* Try at most three times with larger gstring each time. */
4420 for (i
= 0; i
< 3; i
++)
4422 n
= font
->driver
->shape (gstring
);
4425 gstring
= larger_vector (gstring
,
4426 ASIZE (gstring
) + LGSTRING_GLYPH_LEN (gstring
),
4429 if (i
== 3 || XINT (n
) == 0)
4432 glyph
= LGSTRING_GLYPH (gstring
, 0);
4433 from
= LGLYPH_FROM (glyph
);
4434 to
= LGLYPH_TO (glyph
);
4435 for (i
= 1, j
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
4437 Lisp_Object
this = LGSTRING_GLYPH (gstring
, i
);
4441 if (NILP (LGLYPH_ADJUSTMENT (this)))
4446 glyph
= LGSTRING_GLYPH (gstring
, j
);
4447 LGLYPH_SET_FROM (glyph
, from
);
4448 LGLYPH_SET_TO (glyph
, to
);
4450 from
= LGLYPH_FROM (this);
4451 to
= LGLYPH_TO (this);
4456 if (from
> LGLYPH_FROM (this))
4457 from
= LGLYPH_FROM (this);
4458 if (to
< LGLYPH_TO (this))
4459 to
= LGLYPH_TO (this);
4465 glyph
= LGSTRING_GLYPH (gstring
, j
);
4466 LGLYPH_SET_FROM (glyph
, from
);
4467 LGLYPH_SET_TO (glyph
, to
);
4469 return composition_gstring_put_cache (gstring
, XINT (n
));
4472 DEFUN ("font-variation-glyphs", Ffont_variation_glyphs
, Sfont_variation_glyphs
,
4474 doc
: /* Return a list of variation glyphs for CHAR in FONT-OBJECT.
4475 Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID),
4477 VARIATION-SELECTOR is a chracter code of variation selection
4478 (#xFE00..#xFE0F or #xE0100..#xE01EF)
4479 GLYPH-ID is a glyph code of the corresponding variation glyph. */)
4480 (font_object
, character
)
4481 Lisp_Object font_object
, character
;
4483 unsigned variations
[256];
4488 CHECK_FONT_OBJECT (font_object
);
4489 CHECK_CHARACTER (character
);
4490 font
= XFONT_OBJECT (font_object
);
4491 if (! font
->driver
->get_variation_glyphs
)
4493 n
= font
->driver
->get_variation_glyphs (font
, XINT (character
), variations
);
4497 for (i
= 0; i
< 255; i
++)
4501 int vs
= (i
< 16 ? 0xFE00 + i
: 0xE0100 + (i
- 16));
4502 /* Stops GCC whining about limited range of data type. */
4503 EMACS_INT var
= variations
[i
];
4505 if (var
> MOST_POSITIVE_FIXNUM
)
4506 code
= Fcons (make_number ((variations
[i
]) >> 16),
4507 make_number ((variations
[i
]) & 0xFFFF));
4509 code
= make_number (variations
[i
]);
4510 val
= Fcons (Fcons (make_number (vs
), code
), val
);
4517 DEFUN ("font-drive-otf", Ffont_drive_otf
, Sfont_drive_otf
, 6, 6, 0,
4518 doc
: /* Apply OpenType features on glyph-string GSTRING-IN.
4519 OTF-FEATURES specifies which features to apply in this format:
4520 (SCRIPT LANGSYS GSUB GPOS)
4522 SCRIPT is a symbol specifying a script tag of OpenType,
4523 LANGSYS is a symbol specifying a langsys tag of OpenType,
4524 GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags.
4526 If LANGYS is nil, the default langsys is selected.
4528 The features are applied in the order they appear in the list. The
4529 symbol `*' means to apply all available features not present in this
4530 list, and the remaining features are ignored. For instance, (vatu
4531 pstf * haln) is to apply vatu and pstf in this order, then to apply
4532 all available features other than vatu, pstf, and haln.
4534 The features are applied to the glyphs in the range FROM and TO of
4535 the glyph-string GSTRING-IN.
4537 If some feature is actually applicable, the resulting glyphs are
4538 produced in the glyph-string GSTRING-OUT from the index INDEX. In
4539 this case, the value is the number of produced glyphs.
4541 If no feature is applicable, no glyph is produced in GSTRING-OUT, and
4544 If GSTRING-OUT is too short to hold produced glyphs, no glyphs are
4545 produced in GSTRING-OUT, and the value is nil.
4547 See the documentation of `font-make-gstring' for the format of
4549 (otf_features
, gstring_in
, from
, to
, gstring_out
, index
)
4550 Lisp_Object otf_features
, gstring_in
, from
, to
, gstring_out
, index
;
4552 Lisp_Object font_object
= LGSTRING_FONT (gstring_in
);
4557 check_otf_features (otf_features
);
4558 CHECK_FONT_OBJECT (font_object
);
4559 font
= XFONT_OBJECT (font_object
);
4560 if (! font
->driver
->otf_drive
)
4561 error ("Font backend %s can't drive OpenType GSUB table",
4562 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4563 CHECK_CONS (otf_features
);
4564 CHECK_SYMBOL (XCAR (otf_features
));
4565 val
= XCDR (otf_features
);
4566 CHECK_SYMBOL (XCAR (val
));
4567 val
= XCDR (otf_features
);
4570 len
= check_gstring (gstring_in
);
4571 CHECK_VECTOR (gstring_out
);
4572 CHECK_NATNUM (from
);
4574 CHECK_NATNUM (index
);
4576 if (XINT (from
) >= XINT (to
) || XINT (to
) > len
)
4577 args_out_of_range_3 (from
, to
, make_number (len
));
4578 if (XINT (index
) >= ASIZE (gstring_out
))
4579 args_out_of_range (index
, make_number (ASIZE (gstring_out
)));
4580 num
= font
->driver
->otf_drive (font
, otf_features
,
4581 gstring_in
, XINT (from
), XINT (to
),
4582 gstring_out
, XINT (index
), 0);
4585 return make_number (num
);
4588 DEFUN ("font-otf-alternates", Ffont_otf_alternates
, Sfont_otf_alternates
,
4590 doc
: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT.
4591 OTF-FEATURES specifies which features of the font FONT-OBJECT to apply
4593 (SCRIPT LANGSYS FEATURE ...)
4594 See the documentation of `font-drive-otf' for more detail.
4596 The value is a list of cons cells of the format (GLYPH-ID . CHARACTER),
4597 where GLYPH-ID is a glyph index of the font, and CHARACTER is a
4598 character code corresponding to the glyph or nil if there's no
4599 corresponding character. */)
4600 (font_object
, character
, otf_features
)
4601 Lisp_Object font_object
, character
, otf_features
;
4604 Lisp_Object gstring_in
, gstring_out
, g
;
4605 Lisp_Object alternates
;
4608 CHECK_FONT_GET_OBJECT (font_object
, font
);
4609 if (! font
->driver
->otf_drive
)
4610 error ("Font backend %s can't drive OpenType GSUB table",
4611 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4612 CHECK_CHARACTER (character
);
4613 CHECK_CONS (otf_features
);
4615 gstring_in
= Ffont_make_gstring (font_object
, make_number (1));
4616 g
= LGSTRING_GLYPH (gstring_in
, 0);
4617 LGLYPH_SET_CHAR (g
, XINT (character
));
4618 gstring_out
= Ffont_make_gstring (font_object
, make_number (10));
4619 while ((num
= font
->driver
->otf_drive (font
, otf_features
, gstring_in
, 0, 1,
4620 gstring_out
, 0, 1)) < 0)
4621 gstring_out
= Ffont_make_gstring (font_object
,
4622 make_number (ASIZE (gstring_out
) * 2));
4624 for (i
= 0; i
< num
; i
++)
4626 Lisp_Object g
= LGSTRING_GLYPH (gstring_out
, i
);
4627 int c
= LGLYPH_CHAR (g
);
4628 unsigned code
= LGLYPH_CODE (g
);
4630 alternates
= Fcons (Fcons (make_number (code
),
4631 c
> 0 ? make_number (c
) : Qnil
),
4634 return Fnreverse (alternates
);
4640 DEFUN ("open-font", Fopen_font
, Sopen_font
, 1, 3, 0,
4641 doc
: /* Open FONT-ENTITY. */)
4642 (font_entity
, size
, frame
)
4643 Lisp_Object font_entity
;
4649 CHECK_FONT_ENTITY (font_entity
);
4651 frame
= selected_frame
;
4652 CHECK_LIVE_FRAME (frame
);
4655 isize
= XINT (AREF (font_entity
, FONT_SIZE_INDEX
));
4658 CHECK_NUMBER_OR_FLOAT (size
);
4660 isize
= POINT_TO_PIXEL (XFLOAT_DATA (size
), XFRAME (frame
)->resy
);
4662 isize
= XINT (size
);
4666 return font_open_entity (XFRAME (frame
), font_entity
, isize
);
4669 DEFUN ("close-font", Fclose_font
, Sclose_font
, 1, 2, 0,
4670 doc
: /* Close FONT-OBJECT. */)
4671 (font_object
, frame
)
4672 Lisp_Object font_object
, frame
;
4674 CHECK_FONT_OBJECT (font_object
);
4676 frame
= selected_frame
;
4677 CHECK_LIVE_FRAME (frame
);
4678 font_close_object (XFRAME (frame
), font_object
);
4682 DEFUN ("query-font", Fquery_font
, Squery_font
, 1, 1, 0,
4683 doc
: /* Return information about FONT-OBJECT.
4684 The value is a vector:
4685 [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH
4688 NAME is a string of the font name (or nil if the font backend doesn't
4691 FILENAME is a string of the font file (or nil if the font backend
4692 doesn't provide a file name).
4694 PIXEL-SIZE is a pixel size by which the font is opened.
4696 SIZE is a maximum advance width of the font in pixels.
4698 ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in
4701 CAPABILITY is a list whose first element is a symbol representing the
4702 font format \(x, opentype, truetype, type1, pcf, or bdf) and the
4703 remaining elements describe the details of the font capability.
4705 If the font is OpenType font, the form of the list is
4706 \(opentype GSUB GPOS)
4707 where GSUB shows which "GSUB" features the font supports, and GPOS
4708 shows which "GPOS" features the font supports. Both GSUB and GPOS are
4709 lists of the format:
4710 \((SCRIPT (LANGSYS FEATURE ...) ...) ...)
4712 If the font is not OpenType font, currently the length of the form is
4715 SCRIPT is a symbol representing OpenType script tag.
4717 LANGSYS is a symbol representing OpenType langsys tag, or nil
4718 representing the default langsys.
4720 FEATURE is a symbol representing OpenType feature tag.
4722 If the font is not OpenType font, CAPABILITY is nil. */)
4724 Lisp_Object font_object
;
4729 CHECK_FONT_GET_OBJECT (font_object
, font
);
4731 val
= Fmake_vector (make_number (9), Qnil
);
4732 ASET (val
, 0, AREF (font_object
, FONT_NAME_INDEX
));
4733 ASET (val
, 1, AREF (font_object
, FONT_FILE_INDEX
));
4734 ASET (val
, 2, make_number (font
->pixel_size
));
4735 ASET (val
, 3, make_number (font
->max_width
));
4736 ASET (val
, 4, make_number (font
->ascent
));
4737 ASET (val
, 5, make_number (font
->descent
));
4738 ASET (val
, 6, make_number (font
->space_width
));
4739 ASET (val
, 7, make_number (font
->average_width
));
4740 if (font
->driver
->otf_capability
)
4741 ASET (val
, 8, Fcons (Qopentype
, font
->driver
->otf_capability (font
)));
4745 DEFUN ("get-font-glyphs", Fget_font_glyphs
, Sget_font_glyphs
, 2, 2, 0,
4746 doc
: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING.
4747 Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */)
4748 (font_object
, string
)
4749 Lisp_Object font_object
, string
;
4755 CHECK_FONT_GET_OBJECT (font_object
, font
);
4756 CHECK_STRING (string
);
4757 len
= SCHARS (string
);
4758 vec
= Fmake_vector (make_number (len
), Qnil
);
4759 for (i
= 0; i
< len
; i
++)
4761 Lisp_Object ch
= Faref (string
, make_number (i
));
4766 struct font_metrics metrics
;
4768 cod
= code
= font
->driver
->encode_char (font
, c
);
4769 if (code
== FONT_INVALID_CODE
)
4771 val
= Fmake_vector (make_number (6), Qnil
);
4772 if (cod
<= MOST_POSITIVE_FIXNUM
)
4773 ASET (val
, 0, make_number (code
));
4775 ASET (val
, 0, Fcons (make_number (code
>> 16),
4776 make_number (code
& 0xFFFF)));
4777 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4778 ASET (val
, 1, make_number (metrics
.lbearing
));
4779 ASET (val
, 2, make_number (metrics
.rbearing
));
4780 ASET (val
, 3, make_number (metrics
.width
));
4781 ASET (val
, 4, make_number (metrics
.ascent
));
4782 ASET (val
, 5, make_number (metrics
.descent
));
4788 DEFUN ("font-match-p", Ffont_match_p
, Sfont_match_p
, 2, 2, 0,
4789 doc
: /* Return t if and only if font-spec SPEC matches with FONT.
4790 FONT is a font-spec, font-entity, or font-object. */)
4792 Lisp_Object spec
, font
;
4794 CHECK_FONT_SPEC (spec
);
4797 return (font_match_p (spec
, font
) ? Qt
: Qnil
);
4800 DEFUN ("font-at", Ffont_at
, Sfont_at
, 1, 3, 0,
4801 doc
: /* Return a font-object for displaying a character at POSITION.
4802 Optional second arg WINDOW, if non-nil, is a window displaying
4803 the current buffer. It defaults to the currently selected window. */)
4804 (position
, window
, string
)
4805 Lisp_Object position
, window
, string
;
4812 CHECK_NUMBER_COERCE_MARKER (position
);
4813 pos
= XINT (position
);
4814 if (pos
< BEGV
|| pos
>= ZV
)
4815 args_out_of_range_3 (position
, make_number (BEGV
), make_number (ZV
));
4819 CHECK_NUMBER (position
);
4820 CHECK_STRING (string
);
4821 pos
= XINT (position
);
4822 if (pos
< 0 || pos
>= SCHARS (string
))
4823 args_out_of_range (string
, position
);
4826 window
= selected_window
;
4827 CHECK_LIVE_WINDOW (window
);
4828 w
= XWINDOW (window
);
4830 return font_at (-1, pos
, NULL
, w
, string
);
4834 DEFUN ("draw-string", Fdraw_string
, Sdraw_string
, 2, 2, 0,
4835 doc
: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame.
4836 The value is a number of glyphs drawn.
4837 Type C-l to recover what previously shown. */)
4838 (font_object
, string
)
4839 Lisp_Object font_object
, string
;
4841 Lisp_Object frame
= selected_frame
;
4842 FRAME_PTR f
= XFRAME (frame
);
4848 CHECK_FONT_GET_OBJECT (font_object
, font
);
4849 CHECK_STRING (string
);
4850 len
= SCHARS (string
);
4851 code
= alloca (sizeof (unsigned) * len
);
4852 for (i
= 0; i
< len
; i
++)
4854 Lisp_Object ch
= Faref (string
, make_number (i
));
4858 code
[i
] = font
->driver
->encode_char (font
, c
);
4859 if (code
[i
] == FONT_INVALID_CODE
)
4862 face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4864 if (font
->driver
->prepare_face
)
4865 font
->driver
->prepare_face (f
, face
);
4866 width
= font
->driver
->text_extents (font
, code
, i
, NULL
);
4867 len
= font
->driver
->draw_text (f
, face
, 0, font
->ascent
, code
, i
, width
);
4868 if (font
->driver
->done_face
)
4869 font
->driver
->done_face (f
, face
);
4871 return make_number (len
);
4875 #endif /* FONT_DEBUG */
4877 #ifdef HAVE_WINDOW_SYSTEM
4879 DEFUN ("font-info", Ffont_info
, Sfont_info
, 1, 2, 0,
4880 doc
: /* Return information about a font named NAME on frame FRAME.
4881 If FRAME is omitted or nil, use the selected frame.
4882 The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE,
4883 HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT,
4885 OPENED-NAME is the name used for opening the font,
4886 FULL-NAME is the full name of the font,
4887 SIZE is the pixelsize of the font,
4888 HEIGHT is the pixel-height of the font (i.e ascent + descent),
4889 BASELINE-OFFSET is the upward offset pixels from ASCII baseline,
4890 RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling
4891 how to compose characters.
4892 If the named font is not yet loaded, return nil. */)
4894 Lisp_Object name
, frame
;
4899 Lisp_Object font_object
;
4901 (*check_window_system_func
) ();
4904 CHECK_STRING (name
);
4906 frame
= selected_frame
;
4907 CHECK_LIVE_FRAME (frame
);
4912 int fontset
= fs_query_fontset (name
, 0);
4915 name
= fontset_ascii (fontset
);
4916 font_object
= font_open_by_name (f
, (char *) SDATA (name
));
4918 else if (FONT_OBJECT_P (name
))
4920 else if (FONT_ENTITY_P (name
))
4921 font_object
= font_open_entity (f
, name
, 0);
4924 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4925 Lisp_Object entity
= font_matching_entity (f
, face
->lface
, name
);
4927 font_object
= ! NILP (entity
) ? font_open_entity (f
, entity
, 0) : Qnil
;
4929 if (NILP (font_object
))
4931 font
= XFONT_OBJECT (font_object
);
4933 info
= Fmake_vector (make_number (7), Qnil
);
4934 XVECTOR (info
)->contents
[0] = AREF (font_object
, FONT_NAME_INDEX
);
4935 XVECTOR (info
)->contents
[1] = AREF (font_object
, FONT_FULLNAME_INDEX
);
4936 XVECTOR (info
)->contents
[2] = make_number (font
->pixel_size
);
4937 XVECTOR (info
)->contents
[3] = make_number (font
->height
);
4938 XVECTOR (info
)->contents
[4] = make_number (font
->baseline_offset
);
4939 XVECTOR (info
)->contents
[5] = make_number (font
->relative_compose
);
4940 XVECTOR (info
)->contents
[6] = make_number (font
->default_ascent
);
4943 /* As font_object is still in FONT_OBJLIST of the entity, we can't
4944 close it now. Perhaps, we should manage font-objects
4945 by `reference-count'. */
4946 font_close_object (f
, font_object
);
4953 #define BUILD_STYLE_TABLE(TBL) \
4954 build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry))
4957 build_style_table (entry
, nelement
)
4958 struct table_entry
*entry
;
4962 Lisp_Object table
, elt
;
4964 table
= Fmake_vector (make_number (nelement
), Qnil
);
4965 for (i
= 0; i
< nelement
; i
++)
4967 for (j
= 0; entry
[i
].names
[j
]; j
++);
4968 elt
= Fmake_vector (make_number (j
+ 1), Qnil
);
4969 ASET (elt
, 0, make_number (entry
[i
].numeric
));
4970 for (j
= 0; entry
[i
].names
[j
]; j
++)
4971 ASET (elt
, j
+ 1, intern (entry
[i
].names
[j
]));
4972 ASET (table
, i
, elt
);
4977 static Lisp_Object Vfont_log
;
4978 static int font_log_env_checked
;
4980 /* The deferred font-log data of the form [ACTION ARG RESULT].
4981 If ACTION is not nil, that is added to the log when font_add_log is
4982 called next time. At that time, ACTION is set back to nil. */
4983 static Lisp_Object Vfont_log_deferred
;
4985 /* Prepend the font-related logging data in Vfont_log if it is not
4986 `t'. ACTION describes a kind of font-related action (e.g. listing,
4987 opening), ARG is the argument for the action, and RESULT is the
4988 result of the action. */
4990 font_add_log (action
, arg
, result
)
4992 Lisp_Object arg
, result
;
4994 Lisp_Object tail
, val
;
4997 if (! font_log_env_checked
)
4999 Vfont_log
= egetenv ("EMACS_FONT_LOG") ? Qnil
: Qt
;
5000 font_log_env_checked
= 1;
5002 if (EQ (Vfont_log
, Qt
))
5004 if (STRINGP (AREF (Vfont_log_deferred
, 0)))
5006 char *str
= (char *) SDATA (AREF (Vfont_log_deferred
, 0));
5008 ASET (Vfont_log_deferred
, 0, Qnil
);
5009 font_add_log (str
, AREF (Vfont_log_deferred
, 1),
5010 AREF (Vfont_log_deferred
, 2));
5015 Lisp_Object tail
, elt
;
5016 Lisp_Object equalstr
= build_string ("=");
5018 val
= Ffont_xlfd_name (arg
, Qt
);
5019 for (tail
= AREF (arg
, FONT_EXTRA_INDEX
); CONSP (tail
);
5023 if (EQ (XCAR (elt
), QCscript
)
5024 && SYMBOLP (XCDR (elt
)))
5025 val
= concat3 (val
, SYMBOL_NAME (QCscript
),
5026 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
5027 else if (EQ (XCAR (elt
), QClang
)
5028 && SYMBOLP (XCDR (elt
)))
5029 val
= concat3 (val
, SYMBOL_NAME (QClang
),
5030 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
5031 else if (EQ (XCAR (elt
), QCotf
)
5032 && CONSP (XCDR (elt
)) && SYMBOLP (XCAR (XCDR (elt
))))
5033 val
= concat3 (val
, SYMBOL_NAME (QCotf
),
5035 SYMBOL_NAME (XCAR (XCDR (elt
)))));
5041 val
= Ffont_xlfd_name (result
, Qt
);
5042 if (! FONT_SPEC_P (result
))
5043 val
= concat3 (SYMBOL_NAME (AREF (result
, FONT_TYPE_INDEX
)),
5044 build_string (":"), val
);
5047 else if (CONSP (result
))
5049 result
= Fcopy_sequence (result
);
5050 for (tail
= result
; CONSP (tail
); tail
= XCDR (tail
))
5054 val
= Ffont_xlfd_name (val
, Qt
);
5055 XSETCAR (tail
, val
);
5058 else if (VECTORP (result
))
5060 result
= Fcopy_sequence (result
);
5061 for (i
= 0; i
< ASIZE (result
); i
++)
5063 val
= AREF (result
, i
);
5065 val
= Ffont_xlfd_name (val
, Qt
);
5066 ASET (result
, i
, val
);
5069 Vfont_log
= Fcons (list3 (intern (action
), arg
, result
), Vfont_log
);
5072 /* Record a font-related logging data to be added to Vfont_log when
5073 font_add_log is called next time. ACTION, ARG, RESULT are the same
5077 font_deferred_log (action
, arg
, result
)
5079 Lisp_Object arg
, result
;
5081 ASET (Vfont_log_deferred
, 0, build_string (action
));
5082 ASET (Vfont_log_deferred
, 1, arg
);
5083 ASET (Vfont_log_deferred
, 2, result
);
5086 extern void syms_of_ftfont
P_ (());
5087 extern void syms_of_xfont
P_ (());
5088 extern void syms_of_xftfont
P_ (());
5089 extern void syms_of_ftxfont
P_ (());
5090 extern void syms_of_bdffont
P_ (());
5091 extern void syms_of_w32font
P_ (());
5092 extern void syms_of_atmfont
P_ (());
5093 extern void syms_of_nsfont
P_ (());
5098 sort_shift_bits
[FONT_TYPE_INDEX
] = 0;
5099 sort_shift_bits
[FONT_SLANT_INDEX
] = 2;
5100 sort_shift_bits
[FONT_WEIGHT_INDEX
] = 9;
5101 sort_shift_bits
[FONT_SIZE_INDEX
] = 16;
5102 sort_shift_bits
[FONT_WIDTH_INDEX
] = 23;
5103 /* Note that the other elements in sort_shift_bits are not used. */
5105 staticpro (&font_charset_alist
);
5106 font_charset_alist
= Qnil
;
5108 DEFSYM (Qopentype
, "opentype");
5110 DEFSYM (Qascii_0
, "ascii-0");
5111 DEFSYM (Qiso8859_1
, "iso8859-1");
5112 DEFSYM (Qiso10646_1
, "iso10646-1");
5113 DEFSYM (Qunicode_bmp
, "unicode-bmp");
5114 DEFSYM (Qunicode_sip
, "unicode-sip");
5118 DEFSYM (QCotf
, ":otf");
5119 DEFSYM (QClang
, ":lang");
5120 DEFSYM (QCscript
, ":script");
5121 DEFSYM (QCantialias
, ":antialias");
5123 DEFSYM (QCfoundry
, ":foundry");
5124 DEFSYM (QCadstyle
, ":adstyle");
5125 DEFSYM (QCregistry
, ":registry");
5126 DEFSYM (QCspacing
, ":spacing");
5127 DEFSYM (QCdpi
, ":dpi");
5128 DEFSYM (QCscalable
, ":scalable");
5129 DEFSYM (QCavgwidth
, ":avgwidth");
5130 DEFSYM (QCfont_entity
, ":font-entity");
5131 DEFSYM (QCfc_unknown_spec
, ":fc-unknown-spec");
5138 staticpro (&null_vector
);
5139 null_vector
= Fmake_vector (make_number (0), Qnil
);
5141 staticpro (&scratch_font_spec
);
5142 scratch_font_spec
= Ffont_spec (0, NULL
);
5143 staticpro (&scratch_font_prefer
);
5144 scratch_font_prefer
= Ffont_spec (0, NULL
);
5146 staticpro (&Vfont_log_deferred
);
5147 Vfont_log_deferred
= Fmake_vector (make_number (3), Qnil
);
5151 staticpro (&otf_list
);
5153 #endif /* HAVE_LIBOTF */
5157 defsubr (&Sfont_spec
);
5158 defsubr (&Sfont_get
);
5159 #ifdef HAVE_WINDOW_SYSTEM
5160 defsubr (&Sfont_face_attributes
);
5162 defsubr (&Sfont_put
);
5163 defsubr (&Slist_fonts
);
5164 defsubr (&Sfont_family_list
);
5165 defsubr (&Sfind_font
);
5166 defsubr (&Sfont_xlfd_name
);
5167 defsubr (&Sclear_font_cache
);
5168 defsubr (&Sfont_shape_gstring
);
5169 defsubr (&Sfont_variation_glyphs
);
5171 defsubr (&Sfont_drive_otf
);
5172 defsubr (&Sfont_otf_alternates
);
5176 defsubr (&Sopen_font
);
5177 defsubr (&Sclose_font
);
5178 defsubr (&Squery_font
);
5179 defsubr (&Sget_font_glyphs
);
5180 defsubr (&Sfont_match_p
);
5181 defsubr (&Sfont_at
);
5183 defsubr (&Sdraw_string
);
5185 #endif /* FONT_DEBUG */
5186 #ifdef HAVE_WINDOW_SYSTEM
5187 defsubr (&Sfont_info
);
5190 DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist
,
5192 Alist of fontname patterns vs the corresponding encoding and repertory info.
5193 Each element looks like (REGEXP . (ENCODING . REPERTORY)),
5194 where ENCODING is a charset or a char-table,
5195 and REPERTORY is a charset, a char-table, or nil.
5197 If ENCODING and REPERTORY are the same, the element can have the form
5198 \(REGEXP . ENCODING).
5200 ENCODING is for converting a character to a glyph code of the font.
5201 If ENCODING is a charset, encoding a character by the charset gives
5202 the corresponding glyph code. If ENCODING is a char-table, looking up
5203 the table by a character gives the corresponding glyph code.
5205 REPERTORY specifies a repertory of characters supported by the font.
5206 If REPERTORY is a charset, all characters beloging to the charset are
5207 supported. If REPERTORY is a char-table, all characters who have a
5208 non-nil value in the table are supported. If REPERTORY is nil, Emacs
5209 gets the repertory information by an opened font and ENCODING. */);
5210 Vfont_encoding_alist
= Qnil
;
5212 DEFVAR_LISP_NOPRO ("font-weight-table", &Vfont_weight_table
,
5213 doc
: /* Vector of valid font weight values.
5214 Each element has the form:
5215 [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...]
5216 NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */);
5217 Vfont_weight_table
= BUILD_STYLE_TABLE (weight_table
);
5219 DEFVAR_LISP_NOPRO ("font-slant-table", &Vfont_slant_table
,
5220 doc
: /* Vector of font slant symbols vs the corresponding numeric values.
5221 See `font-weight-table' for the format of the vector. */);
5222 Vfont_slant_table
= BUILD_STYLE_TABLE (slant_table
);
5224 DEFVAR_LISP_NOPRO ("font-width-table", &Vfont_width_table
,
5225 doc
: /* Alist of font width symbols vs the corresponding numeric values.
5226 See `font-weight-table' for the format of the vector. */);
5227 Vfont_width_table
= BUILD_STYLE_TABLE (width_table
);
5229 staticpro (&font_style_table
);
5230 font_style_table
= Fmake_vector (make_number (3), Qnil
);
5231 ASET (font_style_table
, 0, Vfont_weight_table
);
5232 ASET (font_style_table
, 1, Vfont_slant_table
);
5233 ASET (font_style_table
, 2, Vfont_width_table
);
5235 DEFVAR_LISP ("font-log", &Vfont_log
, doc
: /*
5236 *Logging list of font related actions and results.
5237 The value t means to suppress the logging.
5238 The initial value is set to nil if the environment variable
5239 EMACS_FONT_LOG is set. Otherwise, it is set to t. */);
5242 #ifdef HAVE_WINDOW_SYSTEM
5243 #ifdef HAVE_FREETYPE
5245 #ifdef HAVE_X_WINDOWS
5250 #endif /* HAVE_XFT */
5251 #endif /* HAVE_X_WINDOWS */
5252 #else /* not HAVE_FREETYPE */
5253 #ifdef HAVE_X_WINDOWS
5255 #endif /* HAVE_X_WINDOWS */
5256 #endif /* not HAVE_FREETYPE */
5259 #endif /* HAVE_BDFFONT */
5262 #endif /* WINDOWSNT */
5265 #endif /* HAVE_NS */
5266 #endif /* HAVE_WINDOW_SYSTEM */
5269 /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846
5270 (do not change this comment) */