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 */
50 Lisp_Object Qfont_spec
, Qfont_entity
, Qfont_object
;
53 extern Lisp_Object Qfontsize
;
56 Lisp_Object Qopentype
;
58 /* Important character set strings. */
59 Lisp_Object Qascii_0
, Qiso8859_1
, Qiso10646_1
, Qunicode_bmp
, Qunicode_sip
;
62 #define DEFAULT_ENCODING Qiso10646_1
64 #define DEFAULT_ENCODING Qiso8859_1
67 /* Unicode category `Cf'. */
68 static Lisp_Object QCf
;
70 /* Special vector of zero length. This is repeatedly used by (struct
71 font_driver *)->list when a specified font is not found. */
72 static Lisp_Object null_vector
;
74 static Lisp_Object Vfont_weight_table
, Vfont_slant_table
, Vfont_width_table
;
76 /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */
77 static Lisp_Object font_style_table
;
79 /* Structure used for tables mapping weight, slant, and width numeric
80 values and their names. */
85 /* The first one is a valid name as a face attribute.
86 The second one (if any) is a typical name in XLFD field. */
91 /* Table of weight numeric values and their names. This table must be
92 sorted by numeric values in ascending order. */
94 static struct table_entry weight_table
[] =
97 { 20, { "ultra-light", "ultralight" }},
98 { 40, { "extra-light", "extralight" }},
100 { 75, { "semi-light", "semilight", "demilight", "book" }},
101 { 100, { "normal", "medium", "regular" }},
102 { 180, { "semi-bold", "semibold", "demibold", "demi" }},
104 { 205, { "extra-bold", "extrabold" }},
105 { 210, { "ultra-bold", "ultrabold", "black" }}
108 /* Table of slant numeric values and their names. This table must be
109 sorted by numeric values in ascending order. */
111 static struct table_entry slant_table
[] =
113 { 0, { "reverse-oblique", "ro" }},
114 { 10, { "reverse-italic", "ri" }},
115 { 100, { "normal", "r" }},
116 { 200, { "italic" ,"i", "ot" }},
117 { 210, { "oblique", "o" }}
120 /* Table of width numeric values and their names. This table must be
121 sorted by numeric values in ascending order. */
123 static struct table_entry width_table
[] =
125 { 50, { "ultra-condensed", "ultracondensed" }},
126 { 63, { "extra-condensed", "extracondensed" }},
127 { 75, { "condensed", "compressed", "narrow" }},
128 { 87, { "semi-condensed", "semicondensed", "demicondensed" }},
129 { 100, { "normal", "medium", "regular" }},
130 { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }},
131 { 125, { "expanded" }},
132 { 150, { "extra-expanded", "extraexpanded" }},
133 { 200, { "ultra-expanded", "ultraexpanded", "wide" }}
136 extern Lisp_Object Qnormal
;
138 /* Symbols representing keys of normal font properties. */
139 extern Lisp_Object QCtype
, QCfamily
, QCweight
, QCslant
, QCwidth
;
140 extern Lisp_Object QCheight
, QCsize
, QCname
;
142 Lisp_Object QCfoundry
, QCadstyle
, QCregistry
;
143 /* Symbols representing keys of font extra info. */
144 Lisp_Object QCspacing
, QCdpi
, QCscalable
, QCotf
, QClang
, QCscript
, QCavgwidth
;
145 Lisp_Object QCantialias
, QCfont_entity
, QCfc_unknown_spec
;
146 /* Symbols representing values of font spacing property. */
147 Lisp_Object Qc
, Qm
, Qp
, Qd
;
149 Lisp_Object Vfont_encoding_alist
;
151 /* Alist of font registry symbol and the corresponding charsets
152 information. The information is retrieved from
153 Vfont_encoding_alist on demand.
155 Eash element has the form:
156 (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID))
160 In the former form, ENCODING-CHARSET-ID is an ID of a charset that
161 encodes a character code to a glyph code of a font, and
162 REPERTORY-CHARSET-ID is an ID of a charset that tells if a
163 character is supported by a font.
165 The latter form means that the information for REGISTRY couldn't be
167 static Lisp_Object font_charset_alist
;
169 /* List of all font drivers. Each font-backend (XXXfont.c) calls
170 register_font_driver in syms_of_XXXfont to register its font-driver
172 static struct font_driver_list
*font_driver_list
;
176 /* Creaters of font-related Lisp object. */
181 Lisp_Object font_spec
;
182 struct font_spec
*spec
183 = ((struct font_spec
*)
184 allocate_pseudovector (VECSIZE (struct font_spec
),
185 FONT_SPEC_MAX
, PVEC_FONT
));
186 XSETFONT (font_spec
, spec
);
193 Lisp_Object font_entity
;
194 struct font_entity
*entity
195 = ((struct font_entity
*)
196 allocate_pseudovector (VECSIZE (struct font_entity
),
197 FONT_ENTITY_MAX
, PVEC_FONT
));
198 XSETFONT (font_entity
, entity
);
202 /* Create a font-object whose structure size is SIZE. If ENTITY is
203 not nil, copy properties from ENTITY to the font-object. If
204 PIXELSIZE is positive, set the `size' property to PIXELSIZE. */
206 font_make_object (size
, entity
, pixelsize
)
211 Lisp_Object font_object
;
213 = (struct font
*) allocate_pseudovector (size
, FONT_OBJECT_MAX
, PVEC_FONT
);
216 XSETFONT (font_object
, font
);
220 for (i
= 1; i
< FONT_SPEC_MAX
; i
++)
221 font
->props
[i
] = AREF (entity
, i
);
222 if (! NILP (AREF (entity
, FONT_EXTRA_INDEX
)))
223 font
->props
[FONT_EXTRA_INDEX
]
224 = Fcopy_sequence (AREF (entity
, FONT_EXTRA_INDEX
));
227 font
->props
[FONT_SIZE_INDEX
] = make_number (pixelsize
);
233 static int font_pixel_size
P_ ((FRAME_PTR f
, Lisp_Object
));
234 static Lisp_Object font_open_entity
P_ ((FRAME_PTR
, Lisp_Object
, int));
235 static Lisp_Object font_matching_entity
P_ ((FRAME_PTR
, Lisp_Object
*,
238 /* Number of registered font drivers. */
239 static int num_font_drivers
;
242 /* Return a Lispy value of a font property value at STR and LEN bytes.
243 If STR is "*", it returns nil.
244 If FORCE_SYMBOL is zero and all characters in STR are digits, it
245 returns an integer. Otherwise, it returns a symbol interned from
249 font_intern_prop (str
, len
, force_symbol
)
259 if (len
== 1 && *str
== '*')
261 if (!force_symbol
&& len
>=1 && isdigit (*str
))
263 for (i
= 1; i
< len
; i
++)
264 if (! isdigit (str
[i
]))
267 return make_number (atoi (str
));
270 /* The following code is copied from the function intern (in
271 lread.c), and modified to suite our purpose. */
273 if (!VECTORP (obarray
) || XVECTOR (obarray
)->size
== 0)
274 obarray
= check_obarray (obarray
);
275 parse_str_as_multibyte (str
, len
, &nchars
, &nbytes
);
276 if (len
== nchars
|| len
!= nbytes
)
277 /* CONTENTS contains no multibyte sequences or contains an invalid
278 multibyte sequence. We'll make a unibyte string. */
279 tem
= oblookup (obarray
, str
, len
, len
);
281 tem
= oblookup (obarray
, str
, nchars
, len
);
284 if (len
== nchars
|| len
!= nbytes
)
285 tem
= make_unibyte_string (str
, len
);
287 tem
= make_multibyte_string (str
, nchars
, len
);
288 return Fintern (tem
, obarray
);
291 /* Return a pixel size of font-spec SPEC on frame F. */
294 font_pixel_size (f
, spec
)
298 #ifdef HAVE_WINDOW_SYSTEM
299 Lisp_Object size
= AREF (spec
, FONT_SIZE_INDEX
);
308 font_assert (FLOATP (size
));
309 point_size
= XFLOAT_DATA (size
);
310 val
= AREF (spec
, FONT_DPI_INDEX
);
315 pixel_size
= POINT_TO_PIXEL (point_size
, dpi
);
323 /* Return a value of PROP's VAL (symbol or integer) to be stored in a
324 font vector. If VAL is not valid (i.e. not registered in
325 font_style_table), return -1 if NOERROR is zero, and return a
326 proper index if NOERROR is nonzero. In that case, register VAL in
327 font_style_table if VAL is a symbol, and return a closest index if
328 VAL is an integer. */
331 font_style_to_value (prop
, val
, noerror
)
332 enum font_property_index prop
;
336 Lisp_Object table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
337 int len
= ASIZE (table
);
343 Lisp_Object args
[2], elt
;
345 /* At first try exact match. */
346 for (i
= 0; i
< len
; i
++)
347 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
348 if (EQ (val
, AREF (AREF (table
, i
), j
)))
349 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
350 | (i
<< 4) | (j
- 1));
351 /* Try also with case-folding match. */
352 s
= SDATA (SYMBOL_NAME (val
));
353 for (i
= 0; i
< len
; i
++)
354 for (j
= 1; j
< ASIZE (AREF (table
, i
)); j
++)
356 elt
= AREF (AREF (table
, i
), j
);
357 if (xstrcasecmp (s
, SDATA (SYMBOL_NAME (elt
))) == 0)
358 return ((XINT (AREF (AREF (table
, i
), 0)) << 8)
359 | (i
<< 4) | (j
- 1));
365 elt
= Fmake_vector (make_number (2), make_number (255));
368 args
[1] = Fmake_vector (make_number (1), elt
);
369 ASET (font_style_table
, prop
- FONT_WEIGHT_INDEX
, Fvconcat (2, args
));
370 return (255 << 8) | (i
<< 4);
375 int numeric
= XINT (val
);
377 for (i
= 0, last_n
= -1; i
< len
; i
++)
379 int n
= XINT (AREF (AREF (table
, i
), 0));
382 return (n
<< 8) | (i
<< 4);
387 return ((i
== 0 || n
- numeric
< numeric
- last_n
)
388 ? (n
<< 8) | (i
<< 4): (last_n
<< 8 | ((i
- 1) << 4)));
394 return ((last_n
<< 8) | ((i
- 1) << 4));
399 font_style_symbolic (font
, prop
, for_face
)
401 enum font_property_index prop
;
404 Lisp_Object val
= AREF (font
, prop
);
405 Lisp_Object table
, elt
;
410 table
= AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
);
411 i
= XINT (val
) & 0xFF;
412 font_assert (((i
>> 4) & 0xF) < ASIZE (table
));
413 elt
= AREF (table
, ((i
>> 4) & 0xF));
414 font_assert ((i
& 0xF) + 1 < ASIZE (elt
));
415 return (for_face
? AREF (elt
, 1) : AREF (elt
, (i
& 0xF) + 1));
418 extern Lisp_Object Vface_alternative_font_family_alist
;
420 extern Lisp_Object find_font_encoding
P_ ((Lisp_Object
));
423 /* Return ENCODING or a cons of ENCODING and REPERTORY of the font
424 FONTNAME. ENCODING is a charset symbol that specifies the encoding
425 of the font. REPERTORY is a charset symbol or nil. */
428 find_font_encoding (fontname
)
429 Lisp_Object fontname
;
431 Lisp_Object tail
, elt
;
433 for (tail
= Vfont_encoding_alist
; CONSP (tail
); tail
= XCDR (tail
))
437 && STRINGP (XCAR (elt
))
438 && fast_string_match_ignore_case (XCAR (elt
), fontname
) >= 0
439 && (SYMBOLP (XCDR (elt
))
440 ? CHARSETP (XCDR (elt
))
441 : CONSP (XCDR (elt
)) && CHARSETP (XCAR (XCDR (elt
)))))
444 /* We don't know the encoding of this font. Let's assume `ascii'. */
448 /* Return encoding charset and repertory charset for REGISTRY in
449 ENCODING and REPERTORY correspondingly. If correct information for
450 REGISTRY is available, return 0. Otherwise return -1. */
453 font_registry_charsets (registry
, encoding
, repertory
)
454 Lisp_Object registry
;
455 struct charset
**encoding
, **repertory
;
458 int encoding_id
, repertory_id
;
460 val
= Fassoc_string (registry
, font_charset_alist
, Qt
);
466 encoding_id
= XINT (XCAR (val
));
467 repertory_id
= XINT (XCDR (val
));
471 val
= find_font_encoding (SYMBOL_NAME (registry
));
472 if (SYMBOLP (val
) && CHARSETP (val
))
474 encoding_id
= repertory_id
= XINT (CHARSET_SYMBOL_ID (val
));
476 else if (CONSP (val
))
478 if (! CHARSETP (XCAR (val
)))
480 encoding_id
= XINT (CHARSET_SYMBOL_ID (XCAR (val
)));
481 if (NILP (XCDR (val
)))
485 if (! CHARSETP (XCDR (val
)))
487 repertory_id
= XINT (CHARSET_SYMBOL_ID (XCDR (val
)));
492 val
= Fcons (make_number (encoding_id
), make_number (repertory_id
));
494 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, val
), Qnil
));
498 *encoding
= CHARSET_FROM_ID (encoding_id
);
500 *repertory
= repertory_id
>= 0 ? CHARSET_FROM_ID (repertory_id
) : NULL
;
505 = nconc2 (font_charset_alist
, Fcons (Fcons (registry
, Qnil
), Qnil
));
510 /* Font property value validaters. See the comment of
511 font_property_table for the meaning of the arguments. */
513 static Lisp_Object font_prop_validate
P_ ((int, Lisp_Object
, Lisp_Object
));
514 static Lisp_Object font_prop_validate_symbol
P_ ((Lisp_Object
, Lisp_Object
));
515 static Lisp_Object font_prop_validate_style
P_ ((Lisp_Object
, Lisp_Object
));
516 static Lisp_Object font_prop_validate_non_neg
P_ ((Lisp_Object
, Lisp_Object
));
517 static Lisp_Object font_prop_validate_spacing
P_ ((Lisp_Object
, Lisp_Object
));
518 static int get_font_prop_index
P_ ((Lisp_Object
));
521 font_prop_validate_symbol (prop
, val
)
522 Lisp_Object prop
, val
;
525 val
= Fintern (val
, Qnil
);
528 else if (EQ (prop
, QCregistry
))
529 val
= Fintern (Fdowncase (SYMBOL_NAME (val
)), Qnil
);
535 font_prop_validate_style (style
, val
)
536 Lisp_Object style
, val
;
538 enum font_property_index prop
= (EQ (style
, QCweight
) ? FONT_WEIGHT_INDEX
539 : EQ (style
, QCslant
) ? FONT_SLANT_INDEX
546 >= ASIZE (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
)))
550 Lisp_Object elt
= AREF (AREF (font_style_table
, prop
- FONT_WEIGHT_INDEX
), (n
>> 4) & 0xF);
552 if ((n
& 0xF) + 1 >= ASIZE (elt
))
554 else if (XINT (AREF (elt
, 0)) != (n
>> 8))
558 else if (SYMBOLP (val
))
560 int n
= font_style_to_value (prop
, val
, 0);
562 val
= n
>= 0 ? make_number (n
) : Qerror
;
570 font_prop_validate_non_neg (prop
, val
)
571 Lisp_Object prop
, val
;
573 return (NATNUMP (val
) || (FLOATP (val
) && XFLOAT_DATA (val
) >= 0)
578 font_prop_validate_spacing (prop
, val
)
579 Lisp_Object prop
, val
;
581 if (NILP (val
) || (NATNUMP (val
) && XINT (val
) <= FONT_SPACING_CHARCELL
))
583 if (SYMBOLP (val
) && SBYTES (SYMBOL_NAME (val
)) == 1)
585 char spacing
= SDATA (SYMBOL_NAME (val
))[0];
587 if (spacing
== 'c' || spacing
== 'C')
588 return make_number (FONT_SPACING_CHARCELL
);
589 if (spacing
== 'm' || spacing
== 'M')
590 return make_number (FONT_SPACING_MONO
);
591 if (spacing
== 'p' || spacing
== 'P')
592 return make_number (FONT_SPACING_PROPORTIONAL
);
593 if (spacing
== 'd' || spacing
== 'D')
594 return make_number (FONT_SPACING_DUAL
);
600 font_prop_validate_otf (prop
, val
)
601 Lisp_Object prop
, val
;
603 Lisp_Object tail
, tmp
;
606 /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]])
607 GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil
608 GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */
611 if (! SYMBOLP (XCAR (val
)))
616 if (! CONSP (tail
) || ! SYMBOLP (XCAR (val
)))
618 for (i
= 0; i
< 2; i
++)
625 for (tmp
= XCAR (tail
); CONSP (tmp
); tmp
= XCDR (tmp
))
626 if (! SYMBOLP (XCAR (tmp
)))
634 /* Structure of known font property keys and validater of the
638 /* Pointer to the key symbol. */
640 /* Function to validate PROP's value VAL, or NULL if any value is
641 ok. The value is VAL or its regularized value if VAL is valid,
642 and Qerror if not. */
643 Lisp_Object (*validater
) P_ ((Lisp_Object prop
, Lisp_Object val
));
644 } font_property_table
[] =
645 { { &QCtype
, font_prop_validate_symbol
},
646 { &QCfoundry
, font_prop_validate_symbol
},
647 { &QCfamily
, font_prop_validate_symbol
},
648 { &QCadstyle
, font_prop_validate_symbol
},
649 { &QCregistry
, font_prop_validate_symbol
},
650 { &QCweight
, font_prop_validate_style
},
651 { &QCslant
, font_prop_validate_style
},
652 { &QCwidth
, font_prop_validate_style
},
653 { &QCsize
, font_prop_validate_non_neg
},
654 { &QCdpi
, font_prop_validate_non_neg
},
655 { &QCspacing
, font_prop_validate_spacing
},
656 { &QCavgwidth
, font_prop_validate_non_neg
},
657 /* The order of the above entries must match with enum
658 font_property_index. */
659 { &QClang
, font_prop_validate_symbol
},
660 { &QCscript
, font_prop_validate_symbol
},
661 { &QCotf
, font_prop_validate_otf
}
664 /* Size (number of elements) of the above table. */
665 #define FONT_PROPERTY_TABLE_SIZE \
666 ((sizeof font_property_table) / (sizeof *font_property_table))
668 /* Return an index number of font property KEY or -1 if KEY is not an
669 already known property. */
672 get_font_prop_index (key
)
677 for (i
= 0; i
< FONT_PROPERTY_TABLE_SIZE
; i
++)
678 if (EQ (key
, *font_property_table
[i
].key
))
683 /* Validate the font property. The property key is specified by the
684 symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid,
685 signal an error. The value is VAL or the regularized one. */
688 font_prop_validate (idx
, prop
, val
)
690 Lisp_Object prop
, val
;
692 Lisp_Object validated
;
697 prop
= *font_property_table
[idx
].key
;
700 idx
= get_font_prop_index (prop
);
704 validated
= (font_property_table
[idx
].validater
) (prop
, val
);
705 if (EQ (validated
, Qerror
))
706 signal_error ("invalid font property", Fcons (prop
, val
));
711 /* Store VAL as a value of extra font property PROP in FONT while
712 keeping the sorting order. Don't check the validity of VAL. */
715 font_put_extra (font
, prop
, val
)
716 Lisp_Object font
, prop
, val
;
718 Lisp_Object extra
= AREF (font
, FONT_EXTRA_INDEX
);
719 Lisp_Object slot
= (NILP (extra
) ? Qnil
: assq_no_quit (prop
, extra
));
723 Lisp_Object prev
= Qnil
;
726 && NILP (Fstring_lessp (prop
, XCAR (XCAR (extra
)))))
727 prev
= extra
, extra
= XCDR (extra
);
729 ASET (font
, FONT_EXTRA_INDEX
, Fcons (Fcons (prop
, val
), extra
));
731 XSETCDR (prev
, Fcons (Fcons (prop
, val
), extra
));
739 /* Font name parser and unparser */
741 static int parse_matrix
P_ ((char *));
742 static int font_expand_wildcards
P_ ((Lisp_Object
*, int));
743 static int font_parse_name
P_ ((char *, Lisp_Object
));
745 /* An enumerator for each field of an XLFD font name. */
746 enum xlfd_field_index
765 /* An enumerator for mask bit corresponding to each XLFD field. */
768 XLFD_FOUNDRY_MASK
= 0x0001,
769 XLFD_FAMILY_MASK
= 0x0002,
770 XLFD_WEIGHT_MASK
= 0x0004,
771 XLFD_SLANT_MASK
= 0x0008,
772 XLFD_SWIDTH_MASK
= 0x0010,
773 XLFD_ADSTYLE_MASK
= 0x0020,
774 XLFD_PIXEL_MASK
= 0x0040,
775 XLFD_POINT_MASK
= 0x0080,
776 XLFD_RESX_MASK
= 0x0100,
777 XLFD_RESY_MASK
= 0x0200,
778 XLFD_SPACING_MASK
= 0x0400,
779 XLFD_AVGWIDTH_MASK
= 0x0800,
780 XLFD_REGISTRY_MASK
= 0x1000,
781 XLFD_ENCODING_MASK
= 0x2000
785 /* Parse P pointing the pixel/point size field of the form
786 `[A B C D]' which specifies a transformation matrix:
792 by which all glyphs of the font are transformed. The spec says
793 that scalar value N for the pixel/point size is equivalent to:
794 A = N * resx/resy, B = C = 0, D = N.
796 Return the scalar value N if the form is valid. Otherwise return
807 for (i
= 0, p
++; i
< 4 && *p
&& *p
!= ']'; i
++)
810 matrix
[i
] = - strtod (p
+ 1, &end
);
812 matrix
[i
] = strtod (p
, &end
);
815 return (i
== 4 ? (int) matrix
[3] : -1);
818 /* Expand a wildcard field in FIELD (the first N fields are filled) to
819 multiple fields to fill in all 14 XLFD fields while restring a
820 field position by its contents. */
823 font_expand_wildcards (field
, n
)
824 Lisp_Object field
[XLFD_LAST_INDEX
];
828 Lisp_Object tmp
[XLFD_LAST_INDEX
];
829 /* Array of information about where this element can go. Nth
830 element is for Nth element of FIELD. */
832 /* Minimum possible field. */
834 /* Maxinum possible field. */
836 /* Bit mask of possible field. Nth bit corresponds to Nth field. */
838 } range
[XLFD_LAST_INDEX
];
840 int range_from
, range_to
;
843 #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \
844 | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK)
845 #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK)
846 #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \
847 | XLFD_AVGWIDTH_MASK)
848 #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK)
850 /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th
851 field. The value is shifted to left one bit by one in the
853 for (i
= 0, range_mask
= 0; i
<= 14 - n
; i
++)
854 range_mask
= (range_mask
<< 1) | 1;
856 /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a
857 position-based retriction for FIELD[I]. */
858 for (i
= 0, range_from
= 0, range_to
= 14 - n
; i
< n
;
859 i
++, range_from
++, range_to
++, range_mask
<<= 1)
861 Lisp_Object val
= field
[i
];
867 range
[i
].from
= range_from
;
868 range
[i
].to
= range_to
;
869 range
[i
].mask
= range_mask
;
873 /* The triplet FROM, TO, and MASK is a value-based
874 retriction for FIELD[I]. */
880 int numeric
= XINT (val
);
883 from
= to
= XLFD_ENCODING_INDEX
,
884 mask
= XLFD_ENCODING_MASK
;
885 else if (numeric
== 0)
886 from
= XLFD_PIXEL_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
887 mask
= XLFD_PIXEL_MASK
| XLFD_LARGENUM_MASK
;
888 else if (numeric
<= 48)
889 from
= to
= XLFD_PIXEL_INDEX
,
890 mask
= XLFD_PIXEL_MASK
;
892 from
= XLFD_POINT_INDEX
, to
= XLFD_AVGWIDTH_INDEX
,
893 mask
= XLFD_LARGENUM_MASK
;
895 else if (SBYTES (SYMBOL_NAME (val
)) == 0)
896 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ADSTYLE_INDEX
,
897 mask
= XLFD_NULL_MASK
;
899 from
= to
= XLFD_FOUNDRY_INDEX
, mask
= XLFD_FOUNDRY_MASK
;
902 Lisp_Object name
= SYMBOL_NAME (val
);
904 if (SDATA (name
)[SBYTES (name
) - 1] == '*')
905 from
= XLFD_REGISTRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
906 mask
= XLFD_REGENC_MASK
;
908 from
= to
= XLFD_ENCODING_INDEX
,
909 mask
= XLFD_ENCODING_MASK
;
911 else if (range_from
<= XLFD_WEIGHT_INDEX
912 && range_to
>= XLFD_WEIGHT_INDEX
913 && FONT_WEIGHT_NAME_NUMERIC (val
) >= 0)
914 from
= to
= XLFD_WEIGHT_INDEX
, mask
= XLFD_WEIGHT_MASK
;
915 else if (range_from
<= XLFD_SLANT_INDEX
916 && range_to
>= XLFD_SLANT_INDEX
917 && FONT_SLANT_NAME_NUMERIC (val
) >= 0)
918 from
= to
= XLFD_SLANT_INDEX
, mask
= XLFD_SLANT_MASK
;
919 else if (range_from
<= XLFD_SWIDTH_INDEX
920 && range_to
>= XLFD_SWIDTH_INDEX
921 && FONT_WIDTH_NAME_NUMERIC (val
) >= 0)
922 from
= to
= XLFD_SWIDTH_INDEX
, mask
= XLFD_SWIDTH_MASK
;
925 if (EQ (val
, Qc
) || EQ (val
, Qm
) || EQ (val
, Qp
) || EQ (val
, Qd
))
926 from
= to
= XLFD_SPACING_INDEX
, mask
= XLFD_SPACING_MASK
;
928 from
= XLFD_FOUNDRY_INDEX
, to
= XLFD_ENCODING_INDEX
,
929 mask
= XLFD_SYMBOL_MASK
;
932 /* Merge position-based and value-based restrictions. */
934 while (from
< range_from
)
935 mask
&= ~(1 << from
++);
936 while (from
< 14 && ! (mask
& (1 << from
)))
938 while (to
> range_to
)
939 mask
&= ~(1 << to
--);
940 while (to
>= 0 && ! (mask
& (1 << to
)))
944 range
[i
].from
= from
;
946 range
[i
].mask
= mask
;
948 if (from
> range_from
|| to
< range_to
)
950 /* The range is narrowed by value-based restrictions.
951 Reflect it to the other fields. */
953 /* Following fields should be after FROM. */
955 /* Preceding fields should be before TO. */
956 for (j
= i
- 1, from
--, to
--; j
>= 0; j
--, from
--, to
--)
958 /* Check FROM for non-wildcard field. */
959 if (! NILP (tmp
[j
]) && range
[j
].from
< from
)
961 while (range
[j
].from
< from
)
962 range
[j
].mask
&= ~(1 << range
[j
].from
++);
963 while (from
< 14 && ! (range
[j
].mask
& (1 << from
)))
965 range
[j
].from
= from
;
968 from
= range
[j
].from
;
969 if (range
[j
].to
> to
)
971 while (range
[j
].to
> to
)
972 range
[j
].mask
&= ~(1 << range
[j
].to
--);
973 while (to
>= 0 && ! (range
[j
].mask
& (1 << to
)))
986 /* Decide all fileds from restrictions in RANGE. */
987 for (i
= j
= 0; i
< n
; i
++)
989 if (j
< range
[i
].from
)
991 if (i
== 0 || ! NILP (tmp
[i
- 1]))
992 /* None of TMP[X] corresponds to Jth field. */
994 for (; j
< range
[i
].from
; j
++)
999 if (! NILP (tmp
[n
- 1]) && j
< XLFD_REGISTRY_INDEX
)
1001 for (; j
< XLFD_LAST_INDEX
; j
++)
1003 if (INTEGERP (field
[XLFD_ENCODING_INDEX
]))
1004 field
[XLFD_ENCODING_INDEX
]
1005 = Fintern (Fnumber_to_string (field
[XLFD_ENCODING_INDEX
]), Qnil
);
1010 #ifdef ENABLE_CHECKING
1011 /* Match a 14-field XLFD pattern against a full XLFD font name. */
1013 font_match_xlfd (char *pattern
, char *name
)
1015 while (*pattern
&& *name
)
1017 if (*pattern
== *name
)
1019 else if (*pattern
== '*')
1020 if (*name
== pattern
[1])
1031 /* Make sure the font object matches the XLFD font name. */
1033 font_check_xlfd_parse (Lisp_Object font
, char *name
)
1035 char name_check
[256];
1036 font_unparse_xlfd (font
, 0, name_check
, 255);
1037 return font_match_xlfd (name_check
, name
);
1043 /* Parse NAME (null terminated) as XLFD and store information in FONT
1044 (font-spec or font-entity). Size property of FONT is set as
1046 specified XLFD fields FONT property
1047 --------------------- -------------
1048 PIXEL_SIZE PIXEL_SIZE (Lisp integer)
1049 POINT_SIZE and RESY calculated pixel size (Lisp integer)
1050 POINT_SIZE POINT_SIZE/10 (Lisp float)
1052 If NAME is successfully parsed, return 0. Otherwise return -1.
1054 FONT is usually a font-spec, but when this function is called from
1055 X font backend driver, it is a font-entity. In that case, NAME is
1056 a fully specified XLFD. */
1059 font_parse_xlfd (name
, font
)
1063 int len
= strlen (name
);
1065 char *f
[XLFD_LAST_INDEX
+ 1];
1069 if (len
> 255 || !len
)
1070 /* Maximum XLFD name length is 255. */
1072 /* Accept "*-.." as a fully specified XLFD. */
1073 if (name
[0] == '*' && (len
== 1 || name
[1] == '-'))
1074 i
= 1, f
[XLFD_FOUNDRY_INDEX
] = name
;
1077 for (p
= name
+ i
; *p
; p
++)
1081 if (i
== XLFD_LAST_INDEX
)
1086 #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0)
1087 #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1)
1089 if (i
== XLFD_LAST_INDEX
)
1091 /* Fully specified XLFD. */
1094 ASET (font
, FONT_FOUNDRY_INDEX
, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX
));
1095 ASET (font
, FONT_FAMILY_INDEX
, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX
));
1096 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1097 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1099 val
= INTERN_FIELD_SYM (i
);
1102 if ((n
= font_style_to_value (j
, INTERN_FIELD_SYM (i
), 0)) < 0)
1104 ASET (font
, j
, make_number (n
));
1107 ASET (font
, FONT_ADSTYLE_INDEX
, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX
));
1108 if (strcmp (f
[XLFD_REGISTRY_INDEX
], "*-*") == 0)
1109 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
1111 ASET (font
, FONT_REGISTRY_INDEX
,
1112 font_intern_prop (f
[XLFD_REGISTRY_INDEX
],
1113 f
[XLFD_LAST_INDEX
] - f
[XLFD_REGISTRY_INDEX
],
1115 p
= f
[XLFD_PIXEL_INDEX
];
1116 if (*p
== '[' && (pixel_size
= parse_matrix (p
)) >= 0)
1117 ASET (font
, FONT_SIZE_INDEX
, make_number (pixel_size
));
1120 val
= INTERN_FIELD (XLFD_PIXEL_INDEX
);
1122 ASET (font
, FONT_SIZE_INDEX
, val
);
1125 double point_size
= -1;
1127 font_assert (FONT_SPEC_P (font
));
1128 p
= f
[XLFD_POINT_INDEX
];
1130 point_size
= parse_matrix (p
);
1131 else if (isdigit (*p
))
1132 point_size
= atoi (p
), point_size
/= 10;
1133 if (point_size
>= 0)
1134 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1138 ASET (font
, FONT_DPI_INDEX
, INTERN_FIELD (XLFD_RESY_INDEX
));
1139 val
= INTERN_FIELD (XLFD_SPACING_INDEX
);
1142 val
= font_prop_validate_spacing (QCspacing
, val
);
1143 if (! INTEGERP (val
))
1145 ASET (font
, FONT_SPACING_INDEX
, val
);
1147 p
= f
[XLFD_AVGWIDTH_INDEX
];
1150 ASET (font
, FONT_AVGWIDTH_INDEX
,
1151 font_intern_prop (p
, f
[XLFD_REGISTRY_INDEX
] - 1 - p
, 0));
1155 int wild_card_found
= 0;
1156 Lisp_Object prop
[XLFD_LAST_INDEX
];
1158 if (FONT_ENTITY_P (font
))
1160 for (j
= 0; j
< i
; j
++)
1164 if (f
[j
][1] && f
[j
][1] != '-')
1167 wild_card_found
= 1;
1170 prop
[j
] = INTERN_FIELD (j
);
1172 prop
[j
] = font_intern_prop (f
[j
], f
[i
] - f
[j
], 0);
1174 if (! wild_card_found
)
1176 if (font_expand_wildcards (prop
, i
) < 0)
1179 ASET (font
, FONT_FOUNDRY_INDEX
, prop
[XLFD_FOUNDRY_INDEX
]);
1180 ASET (font
, FONT_FAMILY_INDEX
, prop
[XLFD_FAMILY_INDEX
]);
1181 for (i
= XLFD_WEIGHT_INDEX
, j
= FONT_WEIGHT_INDEX
;
1182 i
<= XLFD_SWIDTH_INDEX
; i
++, j
++)
1183 if (! NILP (prop
[i
]))
1185 if ((n
= font_style_to_value (j
, prop
[i
], 1)) < 0)
1187 ASET (font
, j
, make_number (n
));
1189 ASET (font
, FONT_ADSTYLE_INDEX
, prop
[XLFD_ADSTYLE_INDEX
]);
1190 val
= prop
[XLFD_REGISTRY_INDEX
];
1193 val
= prop
[XLFD_ENCODING_INDEX
];
1195 val
= concat2 (build_string ("*-"), SYMBOL_NAME (val
));
1197 else if (NILP (prop
[XLFD_ENCODING_INDEX
]))
1198 val
= concat2 (SYMBOL_NAME (val
), build_string ("-*"));
1200 val
= concat3 (SYMBOL_NAME (val
), build_string ("-"),
1201 SYMBOL_NAME (prop
[XLFD_ENCODING_INDEX
]));
1203 ASET (font
, FONT_REGISTRY_INDEX
, Fintern (val
, Qnil
));
1205 if (INTEGERP (prop
[XLFD_PIXEL_INDEX
]))
1206 ASET (font
, FONT_SIZE_INDEX
, prop
[XLFD_PIXEL_INDEX
]);
1207 else if (INTEGERP (prop
[XLFD_POINT_INDEX
]))
1209 double point_size
= XINT (prop
[XLFD_POINT_INDEX
]);
1211 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
/ 10));
1214 if (INTEGERP (prop
[XLFD_RESX_INDEX
]))
1215 ASET (font
, FONT_DPI_INDEX
, prop
[XLFD_RESY_INDEX
]);
1216 if (! NILP (prop
[XLFD_SPACING_INDEX
]))
1218 val
= font_prop_validate_spacing (QCspacing
,
1219 prop
[XLFD_SPACING_INDEX
]);
1220 if (! INTEGERP (val
))
1222 ASET (font
, FONT_SPACING_INDEX
, val
);
1224 if (INTEGERP (prop
[XLFD_AVGWIDTH_INDEX
]))
1225 ASET (font
, FONT_AVGWIDTH_INDEX
, prop
[XLFD_AVGWIDTH_INDEX
]);
1231 /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES
1232 length), and return the name length. If FONT_SIZE_INDEX of FONT is
1233 0, use PIXEL_SIZE instead. */
1236 font_unparse_xlfd (font
, pixel_size
, name
, nbytes
)
1242 char *f
[XLFD_REGISTRY_INDEX
+ 1];
1246 font_assert (FONTP (font
));
1248 for (i
= FONT_FOUNDRY_INDEX
, j
= XLFD_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
;
1251 if (i
== FONT_ADSTYLE_INDEX
)
1252 j
= XLFD_ADSTYLE_INDEX
;
1253 else if (i
== FONT_REGISTRY_INDEX
)
1254 j
= XLFD_REGISTRY_INDEX
;
1255 val
= AREF (font
, i
);
1258 if (j
== XLFD_REGISTRY_INDEX
)
1259 f
[j
] = "*-*", len
+= 4;
1261 f
[j
] = "*", len
+= 2;
1266 val
= SYMBOL_NAME (val
);
1267 if (j
== XLFD_REGISTRY_INDEX
1268 && ! strchr ((char *) SDATA (val
), '-'))
1270 /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */
1271 if (SDATA (val
)[SBYTES (val
) - 1] == '*')
1273 f
[j
] = alloca (SBYTES (val
) + 3);
1274 sprintf (f
[j
], "%s-*", SDATA (val
));
1275 len
+= SBYTES (val
) + 3;
1279 f
[j
] = alloca (SBYTES (val
) + 4);
1280 sprintf (f
[j
], "%s*-*", SDATA (val
));
1281 len
+= SBYTES (val
) + 4;
1285 f
[j
] = (char *) SDATA (val
), len
+= SBYTES (val
) + 1;
1289 for (i
= FONT_WEIGHT_INDEX
, j
= XLFD_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
;
1292 val
= font_style_symbolic (font
, i
, 0);
1294 f
[j
] = "*", len
+= 2;
1297 val
= SYMBOL_NAME (val
);
1298 f
[j
] = (char *) SDATA (val
), len
+= SBYTES (val
) + 1;
1302 val
= AREF (font
, FONT_SIZE_INDEX
);
1303 font_assert (NUMBERP (val
) || NILP (val
));
1311 f
[XLFD_PIXEL_INDEX
] = alloca (22);
1312 len
+= sprintf (f
[XLFD_PIXEL_INDEX
], "%d-*", i
) + 1;
1315 f
[XLFD_PIXEL_INDEX
] = "*-*", len
+= 4;
1317 else if (FLOATP (val
))
1319 i
= XFLOAT_DATA (val
) * 10;
1320 f
[XLFD_PIXEL_INDEX
] = alloca (12);
1321 len
+= sprintf (f
[XLFD_PIXEL_INDEX
], "*-%d", i
) + 1;
1324 f
[XLFD_PIXEL_INDEX
] = "*-*", len
+= 4;
1326 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1328 i
= XINT (AREF (font
, FONT_DPI_INDEX
));
1329 f
[XLFD_RESX_INDEX
] = alloca (22);
1330 len
+= sprintf (f
[XLFD_RESX_INDEX
],
1334 f
[XLFD_RESX_INDEX
] = "*-*", len
+= 4;
1335 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1337 int spacing
= XINT (AREF (font
, FONT_SPACING_INDEX
));
1339 f
[XLFD_SPACING_INDEX
] = (spacing
<= FONT_SPACING_PROPORTIONAL
? "p"
1340 : spacing
<= FONT_SPACING_DUAL
? "d"
1341 : spacing
<= FONT_SPACING_MONO
? "m"
1346 f
[XLFD_SPACING_INDEX
] = "*", len
+= 2;
1347 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1349 f
[XLFD_AVGWIDTH_INDEX
] = alloca (11);
1350 len
+= sprintf (f
[XLFD_AVGWIDTH_INDEX
],
1351 "%d", XINT (AREF (font
, FONT_AVGWIDTH_INDEX
))) + 1;
1354 f
[XLFD_AVGWIDTH_INDEX
] = "*", len
+= 2;
1355 len
++; /* for terminating '\0'. */
1358 return sprintf (name
, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s",
1359 f
[XLFD_FOUNDRY_INDEX
], f
[XLFD_FAMILY_INDEX
],
1360 f
[XLFD_WEIGHT_INDEX
], f
[XLFD_SLANT_INDEX
],
1361 f
[XLFD_SWIDTH_INDEX
], f
[XLFD_ADSTYLE_INDEX
],
1362 f
[XLFD_PIXEL_INDEX
], f
[XLFD_RESX_INDEX
],
1363 f
[XLFD_SPACING_INDEX
], f
[XLFD_AVGWIDTH_INDEX
],
1364 f
[XLFD_REGISTRY_INDEX
]);
1367 /* Parse NAME (null terminated) and store information in FONT
1368 (font-spec or font-entity). NAME is supplied in either the
1369 Fontconfig or GTK font name format. If NAME is successfully
1370 parsed, return 0. Otherwise return -1.
1372 The fontconfig format is
1374 FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]]
1378 FAMILY [PROPS...] [SIZE]
1380 This function tries to guess which format it is. */
1383 font_parse_fcname (name
, font
)
1388 char *size_beg
= NULL
, *size_end
= NULL
;
1389 char *props_beg
= NULL
, *family_end
= NULL
;
1390 int len
= strlen (name
);
1395 for (p
= name
; *p
; p
++)
1397 if (*p
== '\\' && p
[1])
1401 props_beg
= family_end
= p
;
1406 int decimal
= 0, size_found
= 1;
1407 for (q
= p
+ 1; *q
&& *q
!= ':'; q
++)
1410 if (*q
!= '.' || decimal
)
1429 /* A fontconfig name with size and/or property data. */
1430 if (family_end
> name
)
1433 family
= font_intern_prop (name
, family_end
- name
, 1);
1434 ASET (font
, FONT_FAMILY_INDEX
, family
);
1438 double point_size
= strtod (size_beg
, &size_end
);
1439 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1440 if (*size_end
== ':' && size_end
[1])
1441 props_beg
= size_end
;
1445 /* Now parse ":KEY=VAL" patterns. */
1448 for (p
= props_beg
; *p
; p
= q
)
1450 for (q
= p
+ 1; *q
&& *q
!= '=' && *q
!= ':'; q
++);
1453 /* Must be an enumerated value. */
1457 val
= font_intern_prop (p
, q
- p
, 1);
1459 #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0)
1461 if (PROP_MATCH ("light", 5)
1462 || PROP_MATCH ("medium", 6)
1463 || PROP_MATCH ("demibold", 8)
1464 || PROP_MATCH ("bold", 4)
1465 || PROP_MATCH ("black", 5))
1466 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, val
);
1467 else if (PROP_MATCH ("roman", 5)
1468 || PROP_MATCH ("italic", 6)
1469 || PROP_MATCH ("oblique", 7))
1470 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, val
);
1471 else if (PROP_MATCH ("charcell", 8))
1472 ASET (font
, FONT_SPACING_INDEX
,
1473 make_number (FONT_SPACING_CHARCELL
));
1474 else if (PROP_MATCH ("mono", 4))
1475 ASET (font
, FONT_SPACING_INDEX
,
1476 make_number (FONT_SPACING_MONO
));
1477 else if (PROP_MATCH ("proportional", 12))
1478 ASET (font
, FONT_SPACING_INDEX
,
1479 make_number (FONT_SPACING_PROPORTIONAL
));
1488 if (q
- p
== 10 && memcmp (p
+ 1, "pixelsize", 9) == 0)
1489 prop
= FONT_SIZE_INDEX
;
1492 key
= font_intern_prop (p
, q
- p
, 1);
1493 prop
= get_font_prop_index (key
);
1497 for (q
= p
; *q
&& *q
!= ':'; q
++);
1498 val
= font_intern_prop (p
, q
- p
, 0);
1500 if (prop
>= FONT_FOUNDRY_INDEX
1501 && prop
< FONT_EXTRA_INDEX
)
1502 ASET (font
, prop
, font_prop_validate (prop
, Qnil
, val
));
1504 Ffont_put (font
, key
, val
);
1512 /* Either a fontconfig-style name with no size and property
1513 data, or a GTK-style name. */
1515 int word_len
, prop_found
= 0;
1517 for (p
= name
; *p
; p
= *q
? q
+ 1 : q
)
1523 for (q
= p
+ 1; *q
&& *q
!= ' '; q
++)
1531 double point_size
= strtod (p
, &q
);
1532 ASET (font
, FONT_SIZE_INDEX
, make_float (point_size
));
1537 for (q
= p
+ 1; *q
&& *q
!= ' '; q
++)
1538 if (*q
== '\\' && q
[1])
1542 #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0)
1544 if (PROP_MATCH ("Ultra-Light", 11))
1547 prop
= font_intern_prop ("ultra-light", 11, 1);
1548 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1550 else if (PROP_MATCH ("Light", 5))
1553 prop
= font_intern_prop ("light", 5, 1);
1554 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1556 else if (PROP_MATCH ("Semi-Bold", 9))
1559 prop
= font_intern_prop ("semi-bold", 9, 1);
1560 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1562 else if (PROP_MATCH ("Bold", 4))
1565 prop
= font_intern_prop ("bold", 4, 1);
1566 FONT_SET_STYLE (font
, FONT_WEIGHT_INDEX
, prop
);
1568 else if (PROP_MATCH ("Italic", 6))
1571 prop
= font_intern_prop ("italic", 4, 1);
1572 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, prop
);
1574 else if (PROP_MATCH ("Oblique", 7))
1577 prop
= font_intern_prop ("oblique", 7, 1);
1578 FONT_SET_STYLE (font
, FONT_SLANT_INDEX
, prop
);
1582 return -1; /* Unknown property in GTK-style font name. */
1591 family
= font_intern_prop (name
, family_end
- name
, 1);
1592 ASET (font
, FONT_FAMILY_INDEX
, family
);
1599 /* Store fontconfig's font name of FONT (font-spec or font-entity) in
1600 NAME (NBYTES length), and return the name length. If
1601 FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */
1604 font_unparse_fcname (font
, pixel_size
, name
, nbytes
)
1610 Lisp_Object family
, foundry
;
1611 Lisp_Object tail
, val
;
1615 Lisp_Object styles
[3];
1616 char *style_names
[3] = { "weight", "slant", "width" };
1619 family
= AREF (font
, FONT_FAMILY_INDEX
);
1620 if (! NILP (family
))
1622 if (SYMBOLP (family
))
1624 family
= SYMBOL_NAME (family
);
1625 len
+= SBYTES (family
);
1631 val
= AREF (font
, FONT_SIZE_INDEX
);
1634 if (XINT (val
) != 0)
1635 pixel_size
= XINT (val
);
1637 len
+= 21; /* for ":pixelsize=NUM" */
1639 else if (FLOATP (val
))
1642 point_size
= (int) XFLOAT_DATA (val
);
1643 len
+= 11; /* for "-NUM" */
1646 foundry
= AREF (font
, FONT_FOUNDRY_INDEX
);
1647 if (! NILP (foundry
))
1649 if (SYMBOLP (foundry
))
1651 foundry
= SYMBOL_NAME (foundry
);
1652 len
+= 9 + SBYTES (foundry
); /* ":foundry=NAME" */
1658 for (i
= 0; i
< 3; i
++)
1660 styles
[i
] = font_style_symbolic (font
, FONT_WEIGHT_INDEX
+ i
, 0);
1661 if (! NILP (styles
[i
]))
1662 len
+= sprintf (work
, ":%s=%s", style_names
[i
],
1663 SDATA (SYMBOL_NAME (styles
[i
])));
1666 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1667 len
+= sprintf (work
, ":dpi=%d", XINT (AREF (font
, FONT_DPI_INDEX
)));
1668 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1669 len
+= strlen (":spacing=100");
1670 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1671 len
+= strlen (":scalable=false"); /* or ":scalable=true" */
1672 for (tail
= AREF (font
, FONT_EXTRA_INDEX
); CONSP (tail
); tail
= XCDR (tail
))
1674 Lisp_Object key
= XCAR (XCAR (tail
)), val
= XCDR (XCAR (tail
));
1676 len
+= SBYTES (SYMBOL_NAME (key
)) + 1; /* for :KEY= */
1678 len
+= SBYTES (val
);
1679 else if (INTEGERP (val
))
1680 len
+= sprintf (work
, "%d", XINT (val
));
1681 else if (SYMBOLP (val
))
1682 len
+= (NILP (val
) ? 5 : 4); /* for "false" or "true" */
1688 if (! NILP (family
))
1689 p
+= sprintf (p
, "%s", SDATA (family
));
1693 p
+= sprintf (p
, "%d", point_size
);
1695 p
+= sprintf (p
, "-%d", point_size
);
1697 else if (pixel_size
> 0)
1698 p
+= sprintf (p
, ":pixelsize=%d", pixel_size
);
1699 if (! NILP (AREF (font
, FONT_FOUNDRY_INDEX
)))
1700 p
+= sprintf (p
, ":foundry=%s",
1701 SDATA (SYMBOL_NAME (AREF (font
, FONT_FOUNDRY_INDEX
))));
1702 for (i
= 0; i
< 3; i
++)
1703 if (! NILP (styles
[i
]))
1704 p
+= sprintf (p
, ":%s=%s", style_names
[i
],
1705 SDATA (SYMBOL_NAME (styles
[i
])));
1706 if (INTEGERP (AREF (font
, FONT_DPI_INDEX
)))
1707 p
+= sprintf (p
, ":dpi=%d", XINT (AREF (font
, FONT_DPI_INDEX
)));
1708 if (INTEGERP (AREF (font
, FONT_SPACING_INDEX
)))
1709 p
+= sprintf (p
, ":spacing=%d", XINT (AREF (font
, FONT_SPACING_INDEX
)));
1710 if (INTEGERP (AREF (font
, FONT_AVGWIDTH_INDEX
)))
1712 if (XINT (AREF (font
, FONT_AVGWIDTH_INDEX
)) == 0)
1713 p
+= sprintf (p
, ":scalable=true");
1715 p
+= sprintf (p
, ":scalable=false");
1720 /* Store GTK-style font name of FONT (font-spec or font-entity) in
1721 NAME (NBYTES length), and return the name length. F is the frame
1722 on which the font is displayed; it is used to calculate the point
1726 font_unparse_gtkname (font
, f
, name
, nbytes
)
1734 Lisp_Object family
, weight
, slant
, size
;
1735 int point_size
= -1;
1737 family
= AREF (font
, FONT_FAMILY_INDEX
);
1738 if (! NILP (family
))
1740 if (! SYMBOLP (family
))
1742 family
= SYMBOL_NAME (family
);
1743 len
+= SBYTES (family
);
1746 weight
= font_style_symbolic (font
, FONT_WEIGHT_INDEX
, 0);
1747 if (EQ (weight
, Qnormal
))
1749 else if (! NILP (weight
))
1751 weight
= SYMBOL_NAME (weight
);
1752 len
+= SBYTES (weight
);
1755 slant
= font_style_symbolic (font
, FONT_SLANT_INDEX
, 0);
1756 if (EQ (slant
, Qnormal
))
1758 else if (! NILP (slant
))
1760 slant
= SYMBOL_NAME (slant
);
1761 len
+= SBYTES (slant
);
1764 size
= AREF (font
, FONT_SIZE_INDEX
);
1765 /* Convert pixel size to point size. */
1766 if (INTEGERP (size
))
1768 Lisp_Object font_dpi
= AREF (font
, FONT_DPI_INDEX
);
1770 if (INTEGERP (font_dpi
))
1771 dpi
= XINT (font_dpi
);
1774 point_size
= PIXEL_TO_POINT (XINT (size
), dpi
);
1777 else if (FLOATP (size
))
1779 point_size
= (int) XFLOAT_DATA (size
);
1786 p
= name
+ sprintf (name
, "%s", SDATA (family
));
1788 if (! NILP (weight
))
1791 p
+= sprintf (p
, " %s", SDATA (weight
));
1792 q
[1] = toupper (q
[1]);
1798 p
+= sprintf (p
, " %s", SDATA (slant
));
1799 q
[1] = toupper (q
[1]);
1803 p
+= sprintf (p
, " %d", point_size
);
1808 /* Parse NAME (null terminated) and store information in FONT
1809 (font-spec or font-entity). If NAME is successfully parsed, return
1810 0. Otherwise return -1. */
1813 font_parse_name (name
, font
)
1817 if (name
[0] == '-' || index (name
, '*') || index (name
, '?'))
1818 return font_parse_xlfd (name
, font
);
1819 return font_parse_fcname (name
, font
);
1823 /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form
1824 "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding
1828 font_parse_family_registry (family
, registry
, font_spec
)
1829 Lisp_Object family
, registry
, font_spec
;
1835 && NILP (AREF (font_spec
, FONT_FAMILY_INDEX
)))
1837 CHECK_STRING (family
);
1838 len
= SBYTES (family
);
1839 p0
= (char *) SDATA (family
);
1840 p1
= index (p0
, '-');
1843 if ((*p0
!= '*' || p1
- p0
> 1)
1844 && NILP (AREF (font_spec
, FONT_FOUNDRY_INDEX
)))
1845 Ffont_put (font_spec
, QCfoundry
, font_intern_prop (p0
, p1
- p0
, 1));
1848 Ffont_put (font_spec
, QCfamily
, font_intern_prop (p1
, len
, 1));
1851 ASET (font_spec
, FONT_FAMILY_INDEX
, Fintern (family
, Qnil
));
1853 if (! NILP (registry
))
1855 /* Convert "XXX" and "XXX*" to "XXX*-*". */
1856 CHECK_STRING (registry
);
1857 len
= SBYTES (registry
);
1858 p0
= (char *) SDATA (registry
);
1859 p1
= index (p0
, '-');
1862 if (SDATA (registry
)[len
- 1] == '*')
1863 registry
= concat2 (registry
, build_string ("-*"));
1865 registry
= concat2 (registry
, build_string ("*-*"));
1867 registry
= Fdowncase (registry
);
1868 ASET (font_spec
, FONT_REGISTRY_INDEX
, Fintern (registry
, Qnil
));
1873 /* This part (through the next ^L) is still experimental and not
1874 tested much. We may drastically change codes. */
1880 #define LGSTRING_HEADER_SIZE 6
1881 #define LGSTRING_GLYPH_SIZE 8
1884 check_gstring (gstring
)
1885 Lisp_Object gstring
;
1890 CHECK_VECTOR (gstring
);
1891 val
= AREF (gstring
, 0);
1893 if (ASIZE (val
) < LGSTRING_HEADER_SIZE
)
1895 CHECK_FONT_OBJECT (LGSTRING_FONT (gstring
));
1896 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
)))
1897 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_LBEARING
));
1898 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
)))
1899 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_RBEARING
));
1900 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
)))
1901 CHECK_NATNUM (LGSTRING_SLOT (gstring
, LGSTRING_IX_WIDTH
));
1902 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1903 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1904 if (!NILP (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
)))
1905 CHECK_NUMBER (LGSTRING_SLOT (gstring
, LGSTRING_IX_ASCENT
));
1907 for (i
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
1909 val
= LGSTRING_GLYPH (gstring
, i
);
1911 if (ASIZE (val
) < LGSTRING_GLYPH_SIZE
)
1913 if (NILP (AREF (val
, LGLYPH_IX_CHAR
)))
1915 CHECK_NATNUM (AREF (val
, LGLYPH_IX_FROM
));
1916 CHECK_NATNUM (AREF (val
, LGLYPH_IX_TO
));
1917 CHECK_CHARACTER (AREF (val
, LGLYPH_IX_CHAR
));
1918 if (!NILP (AREF (val
, LGLYPH_IX_CODE
)))
1919 CHECK_NATNUM (AREF (val
, LGLYPH_IX_CODE
));
1920 if (!NILP (AREF (val
, LGLYPH_IX_WIDTH
)))
1921 CHECK_NATNUM (AREF (val
, LGLYPH_IX_WIDTH
));
1922 if (!NILP (AREF (val
, LGLYPH_IX_ADJUSTMENT
)))
1924 val
= AREF (val
, LGLYPH_IX_ADJUSTMENT
);
1926 if (ASIZE (val
) < 3)
1928 for (j
= 0; j
< 3; j
++)
1929 CHECK_NUMBER (AREF (val
, j
));
1934 error ("Invalid glyph-string format");
1939 check_otf_features (otf_features
)
1940 Lisp_Object otf_features
;
1944 CHECK_CONS (otf_features
);
1945 CHECK_SYMBOL (XCAR (otf_features
));
1946 otf_features
= XCDR (otf_features
);
1947 CHECK_CONS (otf_features
);
1948 CHECK_SYMBOL (XCAR (otf_features
));
1949 otf_features
= XCDR (otf_features
);
1950 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1952 CHECK_SYMBOL (Fcar (val
));
1953 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1954 error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val
)));
1956 otf_features
= XCDR (otf_features
);
1957 for (val
= Fcar (otf_features
); ! NILP (val
); val
= Fcdr (val
))
1959 CHECK_SYMBOL (Fcar (val
));
1960 if (SBYTES (SYMBOL_NAME (XCAR (val
))) > 4)
1961 error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val
)));
1968 Lisp_Object otf_list
;
1971 otf_tag_symbol (tag
)
1976 OTF_tag_name (tag
, name
);
1977 return Fintern (make_unibyte_string (name
, 4), Qnil
);
1984 Lisp_Object val
= Fassoc (file
, otf_list
);
1988 otf
= XSAVE_VALUE (XCDR (val
))->pointer
;
1991 otf
= STRINGP (file
) ? OTF_open ((char *) SDATA (file
)) : NULL
;
1992 val
= make_save_value (otf
, 0);
1993 otf_list
= Fcons (Fcons (file
, val
), otf_list
);
1999 /* Return a list describing which scripts/languages FONT supports by
2000 which GSUB/GPOS features of OpenType tables. See the comment of
2001 (struct font_driver).otf_capability. */
2004 font_otf_capability (font
)
2008 Lisp_Object capability
= Fcons (Qnil
, Qnil
);
2011 otf
= otf_open (font
->props
[FONT_FILE_INDEX
]);
2014 for (i
= 0; i
< 2; i
++)
2016 OTF_GSUB_GPOS
*gsub_gpos
;
2017 Lisp_Object script_list
= Qnil
;
2020 if (OTF_get_features (otf
, i
== 0) < 0)
2022 gsub_gpos
= i
== 0 ? otf
->gsub
: otf
->gpos
;
2023 for (j
= gsub_gpos
->ScriptList
.ScriptCount
- 1; j
>= 0; j
--)
2025 OTF_Script
*script
= gsub_gpos
->ScriptList
.Script
+ j
;
2026 Lisp_Object langsys_list
= Qnil
;
2027 Lisp_Object script_tag
= otf_tag_symbol (script
->ScriptTag
);
2030 for (k
= script
->LangSysCount
; k
>= 0; k
--)
2032 OTF_LangSys
*langsys
;
2033 Lisp_Object feature_list
= Qnil
;
2034 Lisp_Object langsys_tag
;
2037 if (k
== script
->LangSysCount
)
2039 langsys
= &script
->DefaultLangSys
;
2044 langsys
= script
->LangSys
+ k
;
2046 = otf_tag_symbol (script
->LangSysRecord
[k
].LangSysTag
);
2048 for (l
= langsys
->FeatureCount
- 1; l
>= 0; l
--)
2050 OTF_Feature
*feature
2051 = gsub_gpos
->FeatureList
.Feature
+ langsys
->FeatureIndex
[l
];
2052 Lisp_Object feature_tag
2053 = otf_tag_symbol (feature
->FeatureTag
);
2055 feature_list
= Fcons (feature_tag
, feature_list
);
2057 langsys_list
= Fcons (Fcons (langsys_tag
, feature_list
),
2060 script_list
= Fcons (Fcons (script_tag
, langsys_list
),
2065 XSETCAR (capability
, script_list
);
2067 XSETCDR (capability
, script_list
);
2073 /* Parse OTF features in SPEC and write a proper features spec string
2074 in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is
2075 assured that the sufficient memory has already allocated for
2079 generate_otf_features (spec
, features
)
2089 for (asterisk
= 0; CONSP (spec
); spec
= XCDR (spec
))
2095 if (SREF (SYMBOL_NAME (val
), 0) == '*')
2100 else if (! asterisk
)
2102 val
= SYMBOL_NAME (val
);
2103 p
+= sprintf (p
, "%s", SDATA (val
));
2107 val
= SYMBOL_NAME (val
);
2108 p
+= sprintf (p
, "~%s", SDATA (val
));
2112 error ("OTF spec too long");
2116 font_otf_DeviceTable (device_table
)
2117 OTF_DeviceTable
*device_table
;
2119 int len
= device_table
->StartSize
- device_table
->EndSize
+ 1;
2121 return Fcons (make_number (len
),
2122 make_unibyte_string (device_table
->DeltaValue
, len
));
2126 font_otf_ValueRecord (value_format
, value_record
)
2128 OTF_ValueRecord
*value_record
;
2130 Lisp_Object val
= Fmake_vector (make_number (8), Qnil
);
2132 if (value_format
& OTF_XPlacement
)
2133 ASET (val
, 0, make_number (value_record
->XPlacement
));
2134 if (value_format
& OTF_YPlacement
)
2135 ASET (val
, 1, make_number (value_record
->YPlacement
));
2136 if (value_format
& OTF_XAdvance
)
2137 ASET (val
, 2, make_number (value_record
->XAdvance
));
2138 if (value_format
& OTF_YAdvance
)
2139 ASET (val
, 3, make_number (value_record
->YAdvance
));
2140 if (value_format
& OTF_XPlaDevice
)
2141 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XPlaDevice
));
2142 if (value_format
& OTF_YPlaDevice
)
2143 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YPlaDevice
));
2144 if (value_format
& OTF_XAdvDevice
)
2145 ASET (val
, 4, font_otf_DeviceTable (&value_record
->XAdvDevice
));
2146 if (value_format
& OTF_YAdvDevice
)
2147 ASET (val
, 4, font_otf_DeviceTable (&value_record
->YAdvDevice
));
2152 font_otf_Anchor (anchor
)
2157 val
= Fmake_vector (make_number (anchor
->AnchorFormat
+ 1), Qnil
);
2158 ASET (val
, 0, make_number (anchor
->XCoordinate
));
2159 ASET (val
, 1, make_number (anchor
->YCoordinate
));
2160 if (anchor
->AnchorFormat
== 2)
2161 ASET (val
, 2, make_number (anchor
->f
.f1
.AnchorPoint
));
2164 ASET (val
, 3, font_otf_DeviceTable (&anchor
->f
.f2
.XDeviceTable
));
2165 ASET (val
, 4, font_otf_DeviceTable (&anchor
->f
.f2
.YDeviceTable
));
2169 #endif /* HAVE_LIBOTF */
2175 static unsigned font_score
P_ ((Lisp_Object
, Lisp_Object
*));
2176 static int font_compare
P_ ((const void *, const void *));
2177 static Lisp_Object font_sort_entites
P_ ((Lisp_Object
, Lisp_Object
,
2180 /* Return a rescaling ratio of FONT_ENTITY. */
2181 extern Lisp_Object Vface_font_rescale_alist
;
2184 font_rescale_ratio (font_entity
)
2185 Lisp_Object font_entity
;
2187 Lisp_Object tail
, elt
;
2188 Lisp_Object name
= Qnil
;
2190 for (tail
= Vface_font_rescale_alist
; CONSP (tail
); tail
= XCDR (tail
))
2193 if (FLOATP (XCDR (elt
)))
2195 if (STRINGP (XCAR (elt
)))
2198 name
= Ffont_xlfd_name (font_entity
, Qnil
);
2199 if (fast_string_match_ignore_case (XCAR (elt
), name
) >= 0)
2200 return XFLOAT_DATA (XCDR (elt
));
2202 else if (FONT_SPEC_P (XCAR (elt
)))
2204 if (font_match_p (XCAR (elt
), font_entity
))
2205 return XFLOAT_DATA (XCDR (elt
));
2212 /* We sort fonts by scoring each of them against a specified
2213 font-spec. The score value is 32 bit (`unsigned'), and the smaller
2214 the value is, the closer the font is to the font-spec.
2216 The lowest 2 bits of the score is used for driver type. The font
2217 available by the most preferred font driver is 0.
2219 Each 7-bit in the higher 28 bits are used for numeric properties
2220 WEIGHT, SLANT, WIDTH, and SIZE. */
2222 /* How many bits to shift to store the difference value of each font
2223 property in a score. Note that flots for FONT_TYPE_INDEX and
2224 FONT_REGISTRY_INDEX are not used. */
2225 static int sort_shift_bits
[FONT_SIZE_INDEX
+ 1];
2227 /* Score font-entity ENTITY against properties of font-spec SPEC_PROP.
2228 The return value indicates how different ENTITY is compared with
2232 font_score (entity
, spec_prop
)
2233 Lisp_Object entity
, *spec_prop
;
2238 /* Score three style numeric fields. Maximum difference is 127. */
2239 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_WIDTH_INDEX
; i
++)
2240 if (! NILP (spec_prop
[i
]) && ! EQ (AREF (entity
, i
), spec_prop
[i
]))
2242 int diff
= (XINT (AREF (entity
, i
)) >> 8) - (XINT (spec_prop
[i
]) >> 8);
2247 score
|= min (diff
, 127) << sort_shift_bits
[i
];
2250 /* Score the size. Maximum difference is 127. */
2251 i
= FONT_SIZE_INDEX
;
2252 if (! NILP (spec_prop
[FONT_SIZE_INDEX
])
2253 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2255 /* We use the higher 6-bit for the actual size difference. The
2256 lowest bit is set if the DPI is different. */
2258 int pixel_size
= XINT (spec_prop
[FONT_SIZE_INDEX
]);
2260 if (CONSP (Vface_font_rescale_alist
))
2261 pixel_size
*= font_rescale_ratio (entity
);
2262 diff
= pixel_size
- XINT (AREF (entity
, FONT_SIZE_INDEX
));
2266 if (! NILP (spec_prop
[FONT_DPI_INDEX
])
2267 && ! EQ (spec_prop
[FONT_DPI_INDEX
], AREF (entity
, FONT_DPI_INDEX
)))
2269 score
|= min (diff
, 127) << sort_shift_bits
[FONT_SIZE_INDEX
];
2276 /* The comparison function for qsort. */
2279 font_compare (d1
, d2
)
2280 const void *d1
, *d2
;
2282 return (*(unsigned *) d1
- *(unsigned *) d2
);
2286 /* The structure for elements being sorted by qsort. */
2287 struct font_sort_data
2294 /* Sort font-entities in vector VEC by closeness to font-spec PREFER.
2295 If PREFER specifies a point-size, calculate the corresponding
2296 pixel-size from QCdpi property of PREFER or from the Y-resolution
2297 of FRAME before sorting.
2299 If BEST-ONLY is nonzero, return the best matching entity. Otherwise,
2300 return the sorted VEC. */
2303 font_sort_entites (vec
, prefer
, frame
, best_only
)
2304 Lisp_Object vec
, prefer
, frame
;
2307 Lisp_Object prefer_prop
[FONT_SPEC_MAX
];
2309 struct font_sort_data
*data
;
2310 unsigned best_score
;
2311 Lisp_Object best_entity
, driver_type
;
2313 struct frame
*f
= XFRAME (frame
);
2314 struct font_driver_list
*list
;
2319 return best_only
? AREF (vec
, 0) : vec
;
2321 for (i
= FONT_WEIGHT_INDEX
; i
<= FONT_DPI_INDEX
; i
++)
2322 prefer_prop
[i
] = AREF (prefer
, i
);
2323 if (FLOATP (prefer_prop
[FONT_SIZE_INDEX
]))
2324 prefer_prop
[FONT_SIZE_INDEX
]
2325 = make_number (font_pixel_size (XFRAME (frame
), prefer
));
2327 /* Scoring and sorting. */
2328 SAFE_ALLOCA (data
, struct font_sort_data
*, (sizeof *data
) * len
);
2329 best_score
= 0xFFFFFFFF;
2330 /* We are sure that the length of VEC > 1. */
2331 driver_type
= AREF (AREF (vec
, 0), FONT_TYPE_INDEX
);
2332 for (driver_order
= 0, list
= f
->font_driver_list
; list
;
2333 driver_order
++, list
= list
->next
)
2334 if (EQ (driver_type
, list
->driver
->type
))
2336 best_entity
= data
[0].entity
= AREF (vec
, 0);
2337 best_score
= data
[0].score
2338 = font_score (data
[0].entity
, prefer_prop
) | driver_order
;
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
);
2347 data
[i
].score
= font_score (data
[i
].entity
, prefer_prop
) | driver_order
;
2348 if (best_only
&& best_score
> data
[i
].score
)
2350 best_score
= data
[i
].score
;
2351 best_entity
= data
[i
].entity
;
2352 if (best_score
== 0)
2358 qsort (data
, len
, sizeof *data
, font_compare
);
2359 for (i
= 0; i
< len
; i
++)
2360 ASET (vec
, i
, data
[i
].entity
);
2366 font_add_log ("sort-by", prefer
, vec
);
2371 /* API of Font Service Layer. */
2373 /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to
2374 sort_shift_bits. Finternal_set_font_selection_order calls this
2375 function with font_sort_order after setting up it. */
2378 font_update_sort_order (order
)
2383 for (i
= 0, shift_bits
= 23; i
< 4; i
++, shift_bits
-= 7)
2385 int xlfd_idx
= order
[i
];
2387 if (xlfd_idx
== XLFD_WEIGHT_INDEX
)
2388 sort_shift_bits
[FONT_WEIGHT_INDEX
] = shift_bits
;
2389 else if (xlfd_idx
== XLFD_SLANT_INDEX
)
2390 sort_shift_bits
[FONT_SLANT_INDEX
] = shift_bits
;
2391 else if (xlfd_idx
== XLFD_SWIDTH_INDEX
)
2392 sort_shift_bits
[FONT_WIDTH_INDEX
] = shift_bits
;
2394 sort_shift_bits
[FONT_SIZE_INDEX
] = shift_bits
;
2399 font_check_otf_features (script
, langsys
, features
, table
)
2400 Lisp_Object script
, langsys
, features
, table
;
2405 table
= assq_no_quit (script
, table
);
2408 table
= XCDR (table
);
2409 if (! NILP (langsys
))
2411 table
= assq_no_quit (langsys
, table
);
2417 val
= assq_no_quit (Qnil
, table
);
2419 table
= XCAR (table
);
2423 table
= XCDR (table
);
2424 for (negative
= 0; CONSP (features
); features
= XCDR (features
))
2426 if (NILP (XCAR (features
)))
2428 if (NILP (Fmemq (XCAR (features
), table
)) != negative
)
2434 /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */
2437 font_check_otf (Lisp_Object spec
, Lisp_Object otf_capability
)
2439 Lisp_Object script
, langsys
= Qnil
, gsub
= Qnil
, gpos
= Qnil
;
2441 script
= XCAR (spec
);
2445 langsys
= XCAR (spec
);
2456 if (! NILP (gsub
) && ! font_check_otf_features (script
, langsys
, gsub
,
2457 XCAR (otf_capability
)))
2459 if (! NILP (gpos
) && ! font_check_otf_features (script
, langsys
, gpos
,
2460 XCDR (otf_capability
)))
2467 /* Check if FONT (font-entity or font-object) matches with the font
2468 specification SPEC. */
2471 font_match_p (spec
, font
)
2472 Lisp_Object spec
, font
;
2474 Lisp_Object prop
[FONT_SPEC_MAX
], *props
;
2475 Lisp_Object extra
, font_extra
;
2478 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2479 if (! NILP (AREF (spec
, i
))
2480 && ! NILP (AREF (font
, i
))
2481 && ! EQ (AREF (spec
, i
), AREF (font
, i
)))
2483 props
= XFONT_SPEC (spec
)->props
;
2484 if (FLOATP (props
[FONT_SIZE_INDEX
]))
2486 for (i
= FONT_FOUNDRY_INDEX
; i
< FONT_SIZE_INDEX
; i
++)
2487 prop
[i
] = AREF (spec
, i
);
2488 prop
[FONT_SIZE_INDEX
]
2489 = make_number (font_pixel_size (XFRAME (selected_frame
), spec
));
2493 if (font_score (font
, props
) > 0)
2495 extra
= AREF (spec
, FONT_EXTRA_INDEX
);
2496 font_extra
= AREF (font
, FONT_EXTRA_INDEX
);
2497 for (; CONSP (extra
); extra
= XCDR (extra
))
2499 Lisp_Object key
= XCAR (XCAR (extra
));
2500 Lisp_Object val
= XCDR (XCAR (extra
)), val2
;
2502 if (EQ (key
, QClang
))
2504 val2
= assq_no_quit (key
, font_extra
);
2513 if (NILP (Fmemq (val
, val2
)))
2518 ? NILP (Fmemq (val
, XCDR (val2
)))
2522 else if (EQ (key
, QCscript
))
2524 val2
= assq_no_quit (val
, Vscript_representative_chars
);
2530 /* All characters in the list must be supported. */
2531 for (; CONSP (val2
); val2
= XCDR (val2
))
2533 if (! NATNUMP (XCAR (val2
)))
2535 if (font_encode_char (font
, XFASTINT (XCAR (val2
)))
2536 == FONT_INVALID_CODE
)
2540 else if (VECTORP (val2
))
2542 /* At most one character in the vector must be supported. */
2543 for (i
= 0; i
< ASIZE (val2
); i
++)
2545 if (! NATNUMP (AREF (val2
, i
)))
2547 if (font_encode_char (font
, XFASTINT (AREF (val2
, i
)))
2548 != FONT_INVALID_CODE
)
2551 if (i
== ASIZE (val2
))
2556 else if (EQ (key
, QCotf
))
2560 if (! FONT_OBJECT_P (font
))
2562 fontp
= XFONT_OBJECT (font
);
2563 if (! fontp
->driver
->otf_capability
)
2565 val2
= fontp
->driver
->otf_capability (fontp
);
2566 if (NILP (val2
) || ! font_check_otf (val
, val2
))
2577 Each font backend has the callback function get_cache, and it
2578 returns a cons cell of which cdr part can be freely used for
2579 caching fonts. The cons cell may be shared by multiple frames
2580 and/or multiple font drivers. So, we arrange the cdr part as this:
2582 ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...)
2584 where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES
2585 is a number frames sharing this cache, and FONT-CACHE-DATA is a
2586 cons (FONT-SPEC FONT-ENTITY ...). */
2588 static void font_prepare_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2589 static void font_finish_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2590 static Lisp_Object font_get_cache
P_ ((FRAME_PTR
, struct font_driver
*));
2591 static void font_clear_cache
P_ ((FRAME_PTR
, Lisp_Object
,
2592 struct font_driver
*));
2595 font_prepare_cache (f
, driver
)
2597 struct font_driver
*driver
;
2599 Lisp_Object cache
, val
;
2601 cache
= driver
->get_cache (f
);
2603 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2607 val
= Fcons (driver
->type
, Fcons (make_number (1), Qnil
));
2608 XSETCDR (cache
, Fcons (val
, XCDR (cache
)));
2612 val
= XCDR (XCAR (val
));
2613 XSETCAR (val
, make_number (XINT (XCAR (val
)) + 1));
2619 font_finish_cache (f
, driver
)
2621 struct font_driver
*driver
;
2623 Lisp_Object cache
, val
, tmp
;
2626 cache
= driver
->get_cache (f
);
2628 while (CONSP (val
) && ! EQ (XCAR (XCAR (val
)), driver
->type
))
2629 cache
= val
, val
= XCDR (val
);
2630 font_assert (! NILP (val
));
2631 tmp
= XCDR (XCAR (val
));
2632 XSETCAR (tmp
, make_number (XINT (XCAR (tmp
)) - 1));
2633 if (XINT (XCAR (tmp
)) == 0)
2635 font_clear_cache (f
, XCAR (val
), driver
);
2636 XSETCDR (cache
, XCDR (val
));
2642 font_get_cache (f
, driver
)
2644 struct font_driver
*driver
;
2646 Lisp_Object val
= driver
->get_cache (f
);
2647 Lisp_Object type
= driver
->type
;
2649 font_assert (CONSP (val
));
2650 for (val
= XCDR (val
); ! EQ (XCAR (XCAR (val
)), type
); val
= XCDR (val
));
2651 font_assert (CONSP (val
));
2652 /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */
2653 val
= XCDR (XCAR (val
));
2657 static int num_fonts
;
2660 font_clear_cache (f
, cache
, driver
)
2663 struct font_driver
*driver
;
2665 Lisp_Object tail
, elt
;
2666 Lisp_Object tail2
, entity
;
2668 /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */
2669 for (tail
= XCDR (XCDR (cache
)); CONSP (tail
); tail
= XCDR (tail
))
2672 /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */
2673 if (CONSP (elt
) && FONT_SPEC_P (XCAR (elt
)))
2675 for (tail2
= XCDR (elt
); CONSP (tail2
); tail2
= XCDR (tail2
))
2677 entity
= XCAR (tail2
);
2679 if (FONT_ENTITY_P (entity
)
2680 && EQ (driver
->type
, AREF (entity
, FONT_TYPE_INDEX
)))
2682 Lisp_Object objlist
= AREF (entity
, FONT_OBJLIST_INDEX
);
2684 for (; CONSP (objlist
); objlist
= XCDR (objlist
))
2686 Lisp_Object val
= XCAR (objlist
);
2687 struct font
*font
= XFONT_OBJECT (val
);
2689 if (! NILP (AREF (val
, FONT_TYPE_INDEX
)))
2691 font_assert (font
&& driver
== font
->driver
);
2692 driver
->close (f
, font
);
2696 if (driver
->free_entity
)
2697 driver
->free_entity (entity
);
2702 XSETCDR (cache
, Qnil
);
2706 static Lisp_Object scratch_font_spec
, scratch_font_prefer
;
2709 font_delete_unmatched (list
, spec
, size
)
2710 Lisp_Object list
, spec
;
2713 Lisp_Object entity
, val
;
2714 enum font_property_index prop
;
2716 for (val
= Qnil
; CONSP (list
); list
= XCDR (list
))
2718 entity
= XCAR (list
);
2719 for (prop
= FONT_WEIGHT_INDEX
; prop
< FONT_SIZE_INDEX
; prop
++)
2720 if (INTEGERP (AREF (spec
, prop
))
2721 && ((XINT (AREF (spec
, prop
)) >> 8)
2722 != (XINT (AREF (entity
, prop
)) >> 8)))
2723 prop
= FONT_SPEC_MAX
;
2724 if (prop
< FONT_SPEC_MAX
2726 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
2728 int diff
= XINT (AREF (entity
, FONT_SIZE_INDEX
)) - size
;
2731 && (diff
< 0 ? -diff
> FONT_PIXEL_SIZE_QUANTUM
2732 : diff
> FONT_PIXEL_SIZE_QUANTUM
))
2733 prop
= FONT_SPEC_MAX
;
2735 if (prop
< FONT_SPEC_MAX
2736 && INTEGERP (AREF (spec
, FONT_DPI_INDEX
))
2737 && INTEGERP (AREF (entity
, FONT_DPI_INDEX
))
2738 && XINT (AREF (entity
, FONT_DPI_INDEX
)) != 0
2739 && ! EQ (AREF (spec
, FONT_DPI_INDEX
), AREF (entity
, FONT_DPI_INDEX
)))
2740 prop
= FONT_SPEC_MAX
;
2741 if (prop
< FONT_SPEC_MAX
2742 && INTEGERP (AREF (spec
, FONT_AVGWIDTH_INDEX
))
2743 && INTEGERP (AREF (entity
, FONT_AVGWIDTH_INDEX
))
2744 && XINT (AREF (entity
, FONT_AVGWIDTH_INDEX
)) != 0
2745 && ! EQ (AREF (spec
, FONT_AVGWIDTH_INDEX
),
2746 AREF (entity
, FONT_AVGWIDTH_INDEX
)))
2747 prop
= FONT_SPEC_MAX
;
2748 if (prop
< FONT_SPEC_MAX
)
2749 val
= Fcons (entity
, val
);
2755 /* Return a vector of font-entities matching with SPEC on FRAME. */
2758 font_list_entities (frame
, spec
)
2759 Lisp_Object frame
, spec
;
2761 FRAME_PTR f
= XFRAME (frame
);
2762 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2763 Lisp_Object ftype
, val
;
2766 int need_filtering
= 0;
2769 font_assert (FONT_SPEC_P (spec
));
2771 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
2772 size
= XINT (AREF (spec
, FONT_SIZE_INDEX
));
2773 else if (FLOATP (AREF (spec
, FONT_SIZE_INDEX
)))
2774 size
= font_pixel_size (f
, spec
);
2778 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2779 for (i
= FONT_FOUNDRY_INDEX
; i
<= FONT_REGISTRY_INDEX
; i
++)
2780 ASET (scratch_font_spec
, i
, AREF (spec
, i
));
2781 for (i
= FONT_WEIGHT_INDEX
; i
< FONT_EXTRA_INDEX
; i
++)
2783 ASET (scratch_font_spec
, i
, Qnil
);
2784 if (! NILP (AREF (spec
, i
)))
2786 if (i
== FONT_DPI_INDEX
)
2787 /* Skip FONT_SPACING_INDEX */
2790 ASET (scratch_font_spec
, FONT_SPACING_INDEX
, AREF (spec
, FONT_SPACING_INDEX
));
2791 ASET (scratch_font_spec
, FONT_EXTRA_INDEX
, AREF (spec
, FONT_EXTRA_INDEX
));
2793 vec
= alloca (sizeof (Lisp_Object
) * num_font_drivers
);
2797 for (i
= 0; driver_list
; driver_list
= driver_list
->next
)
2799 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2801 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2803 ASET (scratch_font_spec
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2804 val
= assoc_no_quit (scratch_font_spec
, XCDR (cache
));
2811 val
= driver_list
->driver
->list (frame
, scratch_font_spec
);
2812 copy
= Fcopy_font_spec (scratch_font_spec
);
2813 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2814 XSETCDR (cache
, Fcons (Fcons (copy
, val
), XCDR (cache
)));
2816 if (! NILP (val
) && need_filtering
)
2817 val
= font_delete_unmatched (val
, spec
, size
);
2822 val
= (i
> 0 ? Fvconcat (i
, vec
) : null_vector
);
2823 font_add_log ("list", spec
, val
);
2828 /* Return a font entity matching with SPEC on FRAME. ATTRS, if non
2829 nil, is an array of face's attributes, which specifies preferred
2830 font-related attributes. */
2833 font_matching_entity (f
, attrs
, spec
)
2835 Lisp_Object
*attrs
, spec
;
2837 struct font_driver_list
*driver_list
= f
->font_driver_list
;
2838 Lisp_Object ftype
, size
, entity
;
2840 Lisp_Object work
= Fcopy_font_spec (spec
);
2842 XSETFRAME (frame
, f
);
2843 ftype
= AREF (spec
, FONT_TYPE_INDEX
);
2844 size
= AREF (spec
, FONT_SIZE_INDEX
);
2847 ASET (work
, FONT_SIZE_INDEX
, make_number (font_pixel_size (f
, spec
)));
2848 FONT_SET_STYLE (work
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
2849 FONT_SET_STYLE (work
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
2850 FONT_SET_STYLE (work
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
2853 for (; driver_list
; driver_list
= driver_list
->next
)
2855 && (NILP (ftype
) || EQ (driver_list
->driver
->type
, ftype
)))
2857 Lisp_Object cache
= font_get_cache (f
, driver_list
->driver
);
2860 ASET (work
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2861 entity
= assoc_no_quit (work
, XCDR (cache
));
2863 entity
= XCDR (entity
);
2866 entity
= driver_list
->driver
->match (frame
, work
);
2867 copy
= Fcopy_font_spec (work
);
2868 ASET (copy
, FONT_TYPE_INDEX
, driver_list
->driver
->type
);
2869 XSETCDR (cache
, Fcons (Fcons (copy
, entity
), XCDR (cache
)));
2871 if (! NILP (entity
))
2874 font_add_log ("match", work
, entity
);
2879 /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the
2880 opened font object. */
2883 font_open_entity (f
, entity
, pixel_size
)
2888 struct font_driver_list
*driver_list
;
2889 Lisp_Object objlist
, size
, val
, font_object
;
2891 int min_width
, height
;
2892 int scaled_pixel_size
;
2894 font_assert (FONT_ENTITY_P (entity
));
2895 size
= AREF (entity
, FONT_SIZE_INDEX
);
2896 if (XINT (size
) != 0)
2897 scaled_pixel_size
= pixel_size
= XINT (size
);
2898 else if (CONSP (Vface_font_rescale_alist
))
2899 scaled_pixel_size
= pixel_size
* font_rescale_ratio (entity
);
2901 for (objlist
= AREF (entity
, FONT_OBJLIST_INDEX
); CONSP (objlist
);
2902 objlist
= XCDR (objlist
))
2903 if (! NILP (AREF (XCAR (objlist
), FONT_TYPE_INDEX
))
2904 && XFONT_OBJECT (XCAR (objlist
))->pixel_size
== pixel_size
)
2905 return XCAR (objlist
);
2907 val
= AREF (entity
, FONT_TYPE_INDEX
);
2908 for (driver_list
= f
->font_driver_list
;
2909 driver_list
&& ! EQ (driver_list
->driver
->type
, val
);
2910 driver_list
= driver_list
->next
);
2914 font_object
= driver_list
->driver
->open (f
, entity
, scaled_pixel_size
);
2915 ASET (font_object
, FONT_SIZE_INDEX
, make_number (pixel_size
));
2916 font_add_log ("open", entity
, font_object
);
2917 if (NILP (font_object
))
2919 ASET (entity
, FONT_OBJLIST_INDEX
,
2920 Fcons (font_object
, AREF (entity
, FONT_OBJLIST_INDEX
)));
2921 ASET (font_object
, FONT_OBJLIST_INDEX
, Qnil
);
2924 font
= XFONT_OBJECT (font_object
);
2925 min_width
= (font
->min_width
? font
->min_width
2926 : font
->average_width
? font
->average_width
2927 : font
->space_width
? font
->space_width
2929 height
= (font
->height
? font
->height
: 1);
2930 #ifdef HAVE_WINDOW_SYSTEM
2931 FRAME_X_DISPLAY_INFO (f
)->n_fonts
++;
2932 if (FRAME_X_DISPLAY_INFO (f
)->n_fonts
== 1)
2934 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
;
2935 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
;
2936 fonts_changed_p
= 1;
2940 if (FRAME_SMALLEST_CHAR_WIDTH (f
) > min_width
)
2941 FRAME_SMALLEST_CHAR_WIDTH (f
) = min_width
, fonts_changed_p
= 1;
2942 if (FRAME_SMALLEST_FONT_HEIGHT (f
) > height
)
2943 FRAME_SMALLEST_FONT_HEIGHT (f
) = height
, fonts_changed_p
= 1;
2951 /* Close FONT_OBJECT that is opened on frame F. */
2954 font_close_object (f
, font_object
)
2956 Lisp_Object font_object
;
2958 struct font
*font
= XFONT_OBJECT (font_object
);
2960 if (NILP (AREF (font_object
, FONT_TYPE_INDEX
)))
2961 /* Already closed. */
2963 font_add_log ("close", font_object
, Qnil
);
2964 font
->driver
->close (f
, font
);
2965 #ifdef HAVE_WINDOW_SYSTEM
2966 font_assert (FRAME_X_DISPLAY_INFO (f
)->n_fonts
);
2967 FRAME_X_DISPLAY_INFO (f
)->n_fonts
--;
2973 /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if
2974 FONT is a font-entity and it must be opened to check. */
2977 font_has_char (f
, font
, c
)
2984 if (FONT_ENTITY_P (font
))
2986 Lisp_Object type
= AREF (font
, FONT_TYPE_INDEX
);
2987 struct font_driver_list
*driver_list
;
2989 for (driver_list
= f
->font_driver_list
;
2990 driver_list
&& ! EQ (driver_list
->driver
->type
, type
);
2991 driver_list
= driver_list
->next
);
2994 if (! driver_list
->driver
->has_char
)
2996 return driver_list
->driver
->has_char (font
, c
);
2999 font_assert (FONT_OBJECT_P (font
));
3000 fontp
= XFONT_OBJECT (font
);
3001 if (fontp
->driver
->has_char
)
3003 int result
= fontp
->driver
->has_char (font
, c
);
3008 return (fontp
->driver
->encode_char (fontp
, c
) != FONT_INVALID_CODE
);
3012 /* Return the glyph ID of FONT_OBJECT for character C. */
3015 font_encode_char (font_object
, c
)
3016 Lisp_Object font_object
;
3021 font_assert (FONT_OBJECT_P (font_object
));
3022 font
= XFONT_OBJECT (font_object
);
3023 return font
->driver
->encode_char (font
, c
);
3027 /* Return the name of FONT_OBJECT. */
3030 font_get_name (font_object
)
3031 Lisp_Object font_object
;
3033 font_assert (FONT_OBJECT_P (font_object
));
3034 return AREF (font_object
, FONT_NAME_INDEX
);
3038 /* Return the specification of FONT_OBJECT. */
3041 font_get_spec (font_object
)
3042 Lisp_Object font_object
;
3044 Lisp_Object spec
= font_make_spec ();
3047 for (i
= 0; i
< FONT_SIZE_INDEX
; i
++)
3048 ASET (spec
, i
, AREF (font_object
, i
));
3049 ASET (spec
, FONT_SIZE_INDEX
,
3050 make_number (XFONT_OBJECT (font_object
)->pixel_size
));
3055 /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME
3056 could not be parsed by font_parse_name, return Qnil. */
3059 font_spec_from_name (font_name
)
3060 Lisp_Object font_name
;
3062 Lisp_Object spec
= Ffont_spec (0, NULL
);
3064 CHECK_STRING (font_name
);
3065 if (font_parse_name ((char *) SDATA (font_name
), spec
) == -1)
3067 font_put_extra (spec
, QCname
, font_name
);
3073 font_clear_prop (attrs
, prop
)
3075 enum font_property_index prop
;
3077 Lisp_Object font
= attrs
[LFACE_FONT_INDEX
];
3081 if (NILP (AREF (font
, prop
))
3082 && prop
!= FONT_FAMILY_INDEX
3083 && prop
!= FONT_FOUNDRY_INDEX
3084 && prop
!= FONT_WIDTH_INDEX
3085 && prop
!= FONT_SIZE_INDEX
)
3087 font
= Fcopy_font_spec (font
);
3088 ASET (font
, prop
, Qnil
);
3089 if (prop
== FONT_FAMILY_INDEX
|| prop
== FONT_FOUNDRY_INDEX
)
3091 if (prop
== FONT_FAMILY_INDEX
)
3093 ASET (font
, FONT_FOUNDRY_INDEX
, Qnil
);
3094 /* If we are setting the font family, we must also clear
3095 FONT_WIDTH_INDEX to avoid rejecting families that lack
3096 support for some widths. */
3097 ASET (font
, FONT_WIDTH_INDEX
, Qnil
);
3099 ASET (font
, FONT_ADSTYLE_INDEX
, Qnil
);
3100 ASET (font
, FONT_REGISTRY_INDEX
, Qnil
);
3101 ASET (font
, FONT_SIZE_INDEX
, Qnil
);
3102 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3103 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3104 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3106 else if (prop
== FONT_SIZE_INDEX
)
3108 ASET (font
, FONT_DPI_INDEX
, Qnil
);
3109 ASET (font
, FONT_SPACING_INDEX
, Qnil
);
3110 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3112 else if (prop
== FONT_WIDTH_INDEX
)
3113 ASET (font
, FONT_AVGWIDTH_INDEX
, Qnil
);
3114 attrs
[LFACE_FONT_INDEX
] = font
;
3118 font_update_lface (f
, attrs
)
3124 spec
= attrs
[LFACE_FONT_INDEX
];
3125 if (! FONT_SPEC_P (spec
))
3128 if (! NILP (AREF (spec
, FONT_FOUNDRY_INDEX
)))
3129 attrs
[LFACE_FOUNDRY_INDEX
] = SYMBOL_NAME (AREF (spec
, FONT_FOUNDRY_INDEX
));
3130 if (! NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3131 attrs
[LFACE_FAMILY_INDEX
] = SYMBOL_NAME (AREF (spec
, FONT_FAMILY_INDEX
));
3132 if (! NILP (AREF (spec
, FONT_WEIGHT_INDEX
)))
3133 attrs
[LFACE_WEIGHT_INDEX
] = FONT_WEIGHT_FOR_FACE (spec
);
3134 if (! NILP (AREF (spec
, FONT_SLANT_INDEX
)))
3135 attrs
[LFACE_SLANT_INDEX
] = FONT_SLANT_FOR_FACE (spec
);
3136 if (! NILP (AREF (spec
, FONT_WIDTH_INDEX
)))
3137 attrs
[LFACE_SWIDTH_INDEX
] = FONT_WIDTH_FOR_FACE (spec
);
3138 if (! NILP (AREF (spec
, FONT_SIZE_INDEX
)))
3142 if (INTEGERP (AREF (spec
, FONT_SIZE_INDEX
)))
3147 val
= Ffont_get (spec
, QCdpi
);
3150 point
= PIXEL_TO_POINT (XINT (AREF (spec
, FONT_SIZE_INDEX
)) * 10,
3152 attrs
[LFACE_HEIGHT_INDEX
] = make_number (point
);
3154 else if (FLOATP (AREF (spec
, FONT_SIZE_INDEX
)))
3156 point
= XFLOAT_DATA (AREF (spec
, FONT_SIZE_INDEX
)) * 10;
3157 attrs
[LFACE_HEIGHT_INDEX
] = make_number (point
);
3163 /* Return a font-entity satisfying SPEC and best matching with face's
3164 font related attributes in ATTRS. C, if not negative, is a
3165 character that the entity must support. */
3168 font_find_for_lface (f
, attrs
, spec
, c
)
3175 Lisp_Object frame
, entities
, val
, props
[FONT_REGISTRY_INDEX
+ 1] ;
3176 Lisp_Object size
, foundry
[3], *family
, registry
[3], adstyle
[3];
3178 int i
, j
, k
, l
, result
;
3180 registry
[0] = AREF (spec
, FONT_REGISTRY_INDEX
);
3181 if (NILP (registry
[0]))
3183 registry
[0] = DEFAULT_ENCODING
;
3184 registry
[1] = Qascii_0
;
3185 registry
[2] = null_vector
;
3188 registry
[1] = null_vector
;
3190 if (c
>= 0 && ! NILP (AREF (spec
, FONT_REGISTRY_INDEX
)))
3192 struct charset
*encoding
, *repertory
;
3194 if (font_registry_charsets (AREF (spec
, FONT_REGISTRY_INDEX
),
3195 &encoding
, &repertory
) < 0)
3199 if (ENCODE_CHAR (repertory
, c
) == CHARSET_INVALID_CODE (repertory
))
3201 /* Any font of this registry support C. So, let's
3202 suppress the further checking. */
3205 else if (c
> encoding
->max_char
)
3209 work
= Fcopy_font_spec (spec
);
3210 XSETFRAME (frame
, f
);
3211 size
= AREF (spec
, FONT_SIZE_INDEX
);
3212 pixel_size
= font_pixel_size (f
, spec
);
3213 if (pixel_size
== 0)
3215 double pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3217 pixel_size
= POINT_TO_PIXEL (pt
/ 10, f
->resy
);
3219 ASET (work
, FONT_SIZE_INDEX
, Qnil
);
3220 foundry
[0] = AREF (work
, FONT_FOUNDRY_INDEX
);
3221 if (! NILP (foundry
[0]))
3222 foundry
[1] = null_vector
;
3223 else if (STRINGP (attrs
[LFACE_FOUNDRY_INDEX
]))
3225 val
= attrs
[LFACE_FOUNDRY_INDEX
];
3226 foundry
[0] = font_intern_prop ((char *) SDATA (val
), SBYTES (val
), 1);
3228 foundry
[2] = null_vector
;
3231 foundry
[0] = Qnil
, foundry
[1] = null_vector
;
3233 adstyle
[0] = AREF (work
, FONT_ADSTYLE_INDEX
);
3234 if (! NILP (adstyle
[0]))
3235 adstyle
[1] = null_vector
;
3236 else if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3238 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3240 if (! NILP (AREF (face_font
, FONT_ADSTYLE_INDEX
)))
3242 adstyle
[0] = AREF (face_font
, FONT_ADSTYLE_INDEX
);
3244 adstyle
[2] = null_vector
;
3247 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3250 adstyle
[0] = Qnil
, adstyle
[1] = null_vector
;
3253 val
= AREF (work
, FONT_FAMILY_INDEX
);
3254 if (NILP (val
) && STRINGP (attrs
[LFACE_FAMILY_INDEX
]))
3256 val
= attrs
[LFACE_FAMILY_INDEX
];
3257 val
= font_intern_prop ((char *) SDATA (val
), SBYTES (val
), 1);
3261 family
= alloca ((sizeof family
[0]) * 2);
3263 family
[1] = null_vector
; /* terminator. */
3268 = Fassoc_string (val
, Vface_alternative_font_family_alist
,
3276 if (! NILP (alters
))
3278 family
= alloca ((sizeof family
[0]) * (XINT (Flength (alters
)) + 2));
3279 for (i
= 0; CONSP (alters
); i
++, alters
= XCDR (alters
))
3280 family
[i
] = XCAR (alters
);
3281 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3283 family
[i
] = null_vector
;
3287 family
= alloca ((sizeof family
[0]) * 3);
3290 if (NILP (AREF (spec
, FONT_FAMILY_INDEX
)))
3292 family
[i
] = null_vector
;
3296 for (i
= 0; SYMBOLP (family
[i
]); i
++)
3298 ASET (work
, FONT_FAMILY_INDEX
, family
[i
]);
3299 for (j
= 0; SYMBOLP (foundry
[j
]); j
++)
3301 ASET (work
, FONT_FOUNDRY_INDEX
, foundry
[j
]);
3302 for (k
= 0; SYMBOLP (registry
[k
]); k
++)
3304 ASET (work
, FONT_REGISTRY_INDEX
, registry
[k
]);
3305 for (l
= 0; SYMBOLP (adstyle
[l
]); l
++)
3307 ASET (work
, FONT_ADSTYLE_INDEX
, adstyle
[l
]);
3308 entities
= font_list_entities (frame
, work
);
3309 if (ASIZE (entities
) > 0)
3317 if (ASIZE (entities
) == 1)
3320 return AREF (entities
, 0);
3324 /* Sort fonts by properties specified in LFACE. */
3325 Lisp_Object prefer
= scratch_font_prefer
;
3327 for (i
= 0; i
< FONT_EXTRA_INDEX
; i
++)
3328 ASET (prefer
, i
, AREF (work
, i
));
3329 if (FONTP (attrs
[LFACE_FONT_INDEX
]))
3331 Lisp_Object face_font
= attrs
[LFACE_FONT_INDEX
];
3333 for (i
= 0; i
< FONT_EXTRA_INDEX
; i
++)
3334 if (NILP (AREF (prefer
, i
)))
3335 ASET (prefer
, i
, AREF (face_font
, i
));
3337 if (NILP (AREF (prefer
, FONT_WEIGHT_INDEX
)))
3338 FONT_SET_STYLE (prefer
, FONT_WEIGHT_INDEX
, attrs
[LFACE_WEIGHT_INDEX
]);
3339 if (NILP (AREF (prefer
, FONT_SLANT_INDEX
)))
3340 FONT_SET_STYLE (prefer
, FONT_SLANT_INDEX
, attrs
[LFACE_SLANT_INDEX
]);
3341 if (NILP (AREF (prefer
, FONT_WIDTH_INDEX
)))
3342 FONT_SET_STYLE (prefer
, FONT_WIDTH_INDEX
, attrs
[LFACE_SWIDTH_INDEX
]);
3343 ASET (prefer
, FONT_SIZE_INDEX
, make_number (pixel_size
));
3344 entities
= font_sort_entites (entities
, prefer
, frame
, c
< 0);
3349 for (i
= 0; i
< ASIZE (entities
); i
++)
3353 val
= AREF (entities
, i
);
3356 for (j
= FONT_FOUNDRY_INDEX
; j
<= FONT_REGISTRY_INDEX
; j
++)
3357 if (! EQ (AREF (val
, j
), props
[j
]))
3359 if (j
> FONT_REGISTRY_INDEX
)
3362 for (j
= FONT_FOUNDRY_INDEX
; j
<= FONT_REGISTRY_INDEX
; j
++)
3363 props
[j
] = AREF (val
, j
);
3364 result
= font_has_char (f
, val
, c
);
3369 val
= font_open_for_lface (f
, val
, attrs
, spec
);
3372 result
= font_has_char (f
, val
, c
);
3373 font_close_object (f
, val
);
3375 return AREF (entities
, i
);
3382 font_open_for_lface (f
, entity
, attrs
, spec
)
3390 if (INTEGERP (AREF (entity
, FONT_SIZE_INDEX
))
3391 && XINT (AREF (entity
, FONT_SIZE_INDEX
)) > 0)
3392 size
= XINT (AREF (entity
, FONT_SIZE_INDEX
));
3393 else if (FONT_SPEC_P (spec
) && ! NILP (AREF (spec
, FONT_SIZE_INDEX
)))
3394 size
= font_pixel_size (f
, spec
);
3398 if (INTEGERP (attrs
[LFACE_HEIGHT_INDEX
]))
3399 pt
= XINT (attrs
[LFACE_HEIGHT_INDEX
]);
3402 struct face
*def
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
3403 Lisp_Object height
= def
->lface
[LFACE_HEIGHT_INDEX
];
3404 if (INTEGERP (height
))
3407 abort(); /* We should never end up here. */
3411 size
= POINT_TO_PIXEL (pt
, f
->resy
);
3415 Lisp_Object ffsize
= get_frame_param(f
, Qfontsize
);
3416 size
= NUMBERP (ffsize
) ? POINT_TO_PIXEL (XINT (ffsize
), f
->resy
) : 0;
3420 return font_open_entity (f
, entity
, size
);
3424 /* Find a font satisfying SPEC and best matching with face's
3425 attributes in ATTRS on FRAME, and return the opened
3429 font_load_for_lface (f
, attrs
, spec
)
3431 Lisp_Object
*attrs
, spec
;
3435 entity
= font_find_for_lface (f
, attrs
, spec
, -1);
3438 /* No font is listed for SPEC, but each font-backend may have
3439 the different criteria about "font matching". So, try
3441 entity
= font_matching_entity (f
, attrs
, spec
);
3445 return font_open_for_lface (f
, entity
, attrs
, spec
);
3449 /* Make FACE on frame F ready to use the font opened for FACE. */
3452 font_prepare_for_face (f
, face
)
3456 if (face
->font
->driver
->prepare_face
)
3457 face
->font
->driver
->prepare_face (f
, face
);
3461 /* Make FACE on frame F stop using the font opened for FACE. */
3464 font_done_for_face (f
, face
)
3468 if (face
->font
->driver
->done_face
)
3469 face
->font
->driver
->done_face (f
, face
);
3474 /* Open a font best matching with NAME on frame F. If no proper font
3475 is found, return Qnil. */
3478 font_open_by_name (f
, name
)
3482 Lisp_Object args
[2];
3483 Lisp_Object spec
, attrs
[LFACE_VECTOR_SIZE
];
3486 args
[1] = make_unibyte_string (name
, strlen (name
));
3487 spec
= Ffont_spec (2, args
);
3488 /* We set up the default font-related attributes of a face to prefer
3490 attrs
[LFACE_FAMILY_INDEX
] = attrs
[LFACE_FOUNDRY_INDEX
] = Qnil
;
3491 attrs
[LFACE_SWIDTH_INDEX
] = attrs
[LFACE_WEIGHT_INDEX
]
3492 = attrs
[LFACE_SLANT_INDEX
] = Qnormal
;
3494 attrs
[LFACE_HEIGHT_INDEX
] = make_number (120);
3496 attrs
[LFACE_HEIGHT_INDEX
] = make_number (0);
3498 attrs
[LFACE_FONT_INDEX
] = Qnil
;
3500 return font_load_for_lface (f
, attrs
, spec
);
3504 /* Register font-driver DRIVER. This function is used in two ways.
3506 The first is with frame F non-NULL. In this case, make DRIVER
3507 available (but not yet activated) on F. All frame creaters
3508 (e.g. Fx_create_frame) must call this function at least once with
3509 an available font-driver.
3511 The second is with frame F NULL. In this case, DRIVER is globally
3512 registered in the variable `font_driver_list'. All font-driver
3513 implementations must call this function in its syms_of_XXXX
3514 (e.g. syms_of_xfont). */
3517 register_font_driver (driver
, f
)
3518 struct font_driver
*driver
;
3521 struct font_driver_list
*root
= f
? f
->font_driver_list
: font_driver_list
;
3522 struct font_driver_list
*prev
, *list
;
3524 if (f
&& ! driver
->draw
)
3525 error ("Unusable font driver for a frame: %s",
3526 SDATA (SYMBOL_NAME (driver
->type
)));
3528 for (prev
= NULL
, list
= root
; list
; prev
= list
, list
= list
->next
)
3529 if (EQ (list
->driver
->type
, driver
->type
))
3530 error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver
->type
)));
3532 list
= xmalloc (sizeof (struct font_driver_list
));
3534 list
->driver
= driver
;
3539 f
->font_driver_list
= list
;
3541 font_driver_list
= list
;
3547 free_font_driver_list (f
)
3550 struct font_driver_list
*list
, *next
;
3552 for (list
= f
->font_driver_list
; list
; list
= next
)
3557 f
->font_driver_list
= NULL
;
3561 /* Make the frame F use font backends listed in NEW_DRIVERS (list of
3562 symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all
3563 available font drivers. If NEW_DRIVERS is nil, finalize all drivers.
3565 A caller must free all realized faces if any in advance. The
3566 return value is a list of font backends actually made used on
3570 font_update_drivers (f
, new_drivers
)
3572 Lisp_Object new_drivers
;
3574 Lisp_Object active_drivers
= Qnil
;
3575 struct font_driver
*driver
;
3576 struct font_driver_list
*list
;
3578 /* At first, turn off non-requested drivers, and turn on requested
3580 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3582 driver
= list
->driver
;
3583 if ((EQ (new_drivers
, Qt
) || ! NILP (Fmemq (driver
->type
, new_drivers
)))
3588 if (driver
->end_for_frame
)
3589 driver
->end_for_frame (f
);
3590 font_finish_cache (f
, driver
);
3595 if (! driver
->start_for_frame
3596 || driver
->start_for_frame (f
) == 0)
3598 font_prepare_cache (f
, driver
);
3605 if (NILP (new_drivers
))
3608 if (! EQ (new_drivers
, Qt
))
3610 /* Re-order the driver list according to new_drivers. */
3611 struct font_driver_list
**list_table
, **next
;
3615 list_table
= alloca (sizeof list_table
[0] * (num_font_drivers
+ 1));
3616 for (i
= 0, tail
= new_drivers
; ! NILP (tail
); tail
= XCDR (tail
))
3618 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3619 if (list
->on
&& EQ (list
->driver
->type
, XCAR (tail
)))
3622 list_table
[i
++] = list
;
3624 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3626 list_table
[i
++] = list
;
3627 list_table
[i
] = NULL
;
3629 next
= &f
->font_driver_list
;
3630 for (i
= 0; list_table
[i
]; i
++)
3632 *next
= list_table
[i
];
3633 next
= &(*next
)->next
;
3638 for (list
= f
->font_driver_list
; list
; list
= list
->next
)
3640 active_drivers
= nconc2 (active_drivers
,
3641 Fcons (list
->driver
->type
, Qnil
));
3642 return active_drivers
;
3646 font_put_frame_data (f
, driver
, data
)
3648 struct font_driver
*driver
;
3651 struct font_data_list
*list
, *prev
;
3653 for (prev
= NULL
, list
= f
->font_data_list
; list
;
3654 prev
= list
, list
= list
->next
)
3655 if (list
->driver
== driver
)
3662 prev
->next
= list
->next
;
3664 f
->font_data_list
= list
->next
;
3672 list
= xmalloc (sizeof (struct font_data_list
));
3673 list
->driver
= driver
;
3674 list
->next
= f
->font_data_list
;
3675 f
->font_data_list
= list
;
3683 font_get_frame_data (f
, driver
)
3685 struct font_driver
*driver
;
3687 struct font_data_list
*list
;
3689 for (list
= f
->font_data_list
; list
; list
= list
->next
)
3690 if (list
->driver
== driver
)
3698 /* Return the font used to draw character C by FACE at buffer position
3699 POS in window W. If STRING is non-nil, it is a string containing C
3700 at index POS. If C is negative, get C from the current buffer or
3704 font_at (c
, pos
, face
, w
, string
)
3713 Lisp_Object font_object
;
3715 multibyte
= (NILP (string
)
3716 ? ! NILP (current_buffer
->enable_multibyte_characters
)
3717 : STRING_MULTIBYTE (string
));
3724 EMACS_INT pos_byte
= CHAR_TO_BYTE (pos
);
3726 c
= FETCH_CHAR (pos_byte
);
3729 c
= FETCH_BYTE (pos
);
3735 multibyte
= STRING_MULTIBYTE (string
);
3738 EMACS_INT pos_byte
= string_char_to_byte (string
, pos
);
3740 str
= SDATA (string
) + pos_byte
;
3741 c
= STRING_CHAR (str
, 0);
3744 c
= SDATA (string
)[pos
];
3748 f
= XFRAME (w
->frame
);
3749 if (! FRAME_WINDOW_P (f
))
3756 if (STRINGP (string
))
3757 face_id
= face_at_string_position (w
, string
, pos
, 0, -1, -1, &endptr
,
3758 DEFAULT_FACE_ID
, 0);
3760 face_id
= face_at_buffer_position (w
, pos
, -1, -1, &endptr
,
3762 face
= FACE_FROM_ID (f
, face_id
);
3766 int face_id
= FACE_FOR_CHAR (f
, face
, c
, pos
, string
);
3767 face
= FACE_FROM_ID (f
, face_id
);
3772 XSETFONT (font_object
, face
->font
);
3777 #ifdef HAVE_WINDOW_SYSTEM
3779 /* Check how many characters after POS (at most to *LIMIT) can be
3780 displayed by the same font on the window W. FACE, if non-NULL, is
3781 the face selected for the character at POS. If STRING is not nil,
3782 it is the string to check instead of the current buffer. In that
3783 case, FACE must be not NULL.
3785 The return value is the font-object for the character at POS.
3786 *LIMIT is set to the position where that font can't be used.
3788 It is assured that the current buffer (or STRING) is multibyte. */
3791 font_range (pos
, limit
, w
, face
, string
)
3792 EMACS_INT pos
, *limit
;
3797 EMACS_INT pos_byte
, ignore
, start
, start_byte
;
3799 Lisp_Object font_object
= Qnil
;
3803 pos_byte
= CHAR_TO_BYTE (pos
);
3808 face_id
= face_at_buffer_position (w
, pos
, 0, 0, &ignore
, *limit
, 0);
3809 face
= FACE_FROM_ID (XFRAME (w
->frame
), face_id
);
3815 pos_byte
= string_char_to_byte (string
, pos
);
3818 start
= pos
, start_byte
= pos_byte
;
3819 while (pos
< *limit
)
3821 Lisp_Object category
;
3824 FETCH_CHAR_ADVANCE_NO_CHECK (c
, pos
, pos_byte
);
3826 FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c
, string
, pos
, pos_byte
);
3827 if (NILP (font_object
))
3829 font_object
= font_for_char (face
, c
, pos
- 1, string
);
3830 if (NILP (font_object
))
3835 category
= CHAR_TABLE_REF (Vunicode_category_table
, c
);
3836 if (! EQ (category
, QCf
)
3837 && ! CHAR_VARIATION_SELECTOR_P (c
)
3838 && font_encode_char (font_object
, c
) == FONT_INVALID_CODE
)
3840 Lisp_Object f
= font_for_char (face
, c
, pos
- 1, string
);
3841 EMACS_INT i
, i_byte
;
3849 i
= start
, i_byte
= start_byte
;
3854 FETCH_CHAR_ADVANCE_NO_CHECK (c
, i
, i_byte
);
3856 FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c
, string
, i
, i_byte
);
3857 category
= CHAR_TABLE_REF (Vunicode_category_table
, c
);
3858 if (! EQ (category
, QCf
)
3859 && ! CHAR_VARIATION_SELECTOR_P (c
)
3860 && font_encode_char (f
, c
) == FONT_INVALID_CODE
)
3876 DEFUN ("fontp", Ffontp
, Sfontp
, 1, 2, 0,
3877 doc
: /* Return t if OBJECT is a font-spec, font-entity, or font-object.
3878 Return nil otherwise.
3879 Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check
3880 which kind of font it is. It must be one of `font-spec', `font-entity',
3882 (object
, extra_type
)
3883 Lisp_Object object
, extra_type
;
3885 if (NILP (extra_type
))
3886 return (FONTP (object
) ? Qt
: Qnil
);
3887 if (EQ (extra_type
, Qfont_spec
))
3888 return (FONT_SPEC_P (object
) ? Qt
: Qnil
);
3889 if (EQ (extra_type
, Qfont_entity
))
3890 return (FONT_ENTITY_P (object
) ? Qt
: Qnil
);
3891 if (EQ (extra_type
, Qfont_object
))
3892 return (FONT_OBJECT_P (object
) ? Qt
: Qnil
);
3893 wrong_type_argument (intern ("font-extra-type"), extra_type
);
3896 DEFUN ("font-spec", Ffont_spec
, Sfont_spec
, 0, MANY
, 0,
3897 doc
: /* Return a newly created font-spec with arguments as properties.
3899 ARGS must come in pairs KEY VALUE of font properties. KEY must be a
3900 valid font property name listed below:
3902 `:family', `:weight', `:slant', `:width'
3904 They are the same as face attributes of the same name. See
3905 `set-face-attribute'.
3909 VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''.
3913 VALUE must be a string or a symbol specifying the additional
3914 typographic style information of a font, e.g. ``sans''.
3918 VALUE must be a string or a symbol specifying the charset registry and
3919 encoding of a font, e.g. ``iso8859-1''.
3923 VALUE must be a non-negative integer or a floating point number
3924 specifying the font size. It specifies the font size in pixels
3925 (if VALUE is an integer), or in points (if VALUE is a float).
3929 VALUE must be a string of XLFD-style or fontconfig-style font name.
3933 VALUE must be a symbol representing a script that the font must
3934 support. It may be a symbol representing a subgroup of a script
3935 listed in the variable `script-representative-chars'.
3936 usage: (font-spec ARGS...) */)
3941 Lisp_Object spec
= font_make_spec ();
3944 for (i
= 0; i
< nargs
; i
+= 2)
3946 Lisp_Object key
= args
[i
], val
= args
[i
+ 1];
3948 if (EQ (key
, QCname
))
3951 font_parse_name ((char *) SDATA (val
), spec
);
3952 font_put_extra (spec
, key
, val
);
3956 int idx
= get_font_prop_index (key
);
3960 val
= font_prop_validate (idx
, Qnil
, val
);
3961 if (idx
< FONT_EXTRA_INDEX
)
3962 ASET (spec
, idx
, val
);
3964 font_put_extra (spec
, key
, val
);
3967 font_put_extra (spec
, key
, font_prop_validate (0, key
, val
));
3973 DEFUN ("copy-font-spec", Fcopy_font_spec
, Scopy_font_spec
, 1, 1, 0,
3974 doc
: /* Return a copy of FONT as a font-spec. */)
3978 Lisp_Object new_spec
, tail
, prev
, extra
;
3982 new_spec
= font_make_spec ();
3983 for (i
= 1; i
< FONT_EXTRA_INDEX
; i
++)
3984 ASET (new_spec
, i
, AREF (font
, i
));
3985 extra
= Fcopy_sequence (AREF (font
, FONT_EXTRA_INDEX
));
3986 /* We must remove :font-entity property. */
3987 for (prev
= Qnil
, tail
= extra
; CONSP (tail
); prev
= tail
, tail
= XCDR (tail
))
3988 if (EQ (XCAR (XCAR (tail
)), QCfont_entity
))
3991 extra
= XCDR (extra
);
3993 XSETCDR (prev
, XCDR (tail
));
3996 ASET (new_spec
, FONT_EXTRA_INDEX
, extra
);
4000 DEFUN ("merge-font-spec", Fmerge_font_spec
, Smerge_font_spec
, 2, 2, 0,
4001 doc
: /* Merge font-specs FROM and TO, and return a new font-spec.
4002 Every specified properties in FROM override the corresponding
4003 properties in TO. */)
4005 Lisp_Object from
, to
;
4007 Lisp_Object extra
, tail
;
4012 to
= Fcopy_font_spec (to
);
4013 for (i
= 0; i
< FONT_EXTRA_INDEX
; i
++)
4014 ASET (to
, i
, AREF (from
, i
));
4015 extra
= AREF (to
, FONT_EXTRA_INDEX
);
4016 for (tail
= AREF (from
, FONT_EXTRA_INDEX
); CONSP (tail
); tail
= XCDR (tail
))
4017 if (! EQ (XCAR (XCAR (tail
)), Qfont_entity
))
4019 Lisp_Object slot
= assq_no_quit (XCAR (XCAR (tail
)), extra
);
4022 XSETCDR (slot
, XCDR (XCAR (tail
)));
4024 extra
= Fcons (Fcons (XCAR (XCAR (tail
)), XCDR (XCAR (tail
))), extra
);
4026 ASET (to
, FONT_EXTRA_INDEX
, extra
);
4030 DEFUN ("font-get", Ffont_get
, Sfont_get
, 2, 2, 0,
4031 doc
: /* Return the value of FONT's property KEY.
4032 FONT is a font-spec, a font-entity, or a font-object.
4033 KEY must be one of these symbols:
4034 :family, :weight, :slant, :width, :foundry, :adstyle, :registry,
4035 :size, :name, :script
4036 See the documentation of `font-spec' for their meanings.
4037 If FONT is a font-entity or font-object, the value of :script may be
4038 a list of scripts that are supported by the font. */)
4040 Lisp_Object font
, key
;
4047 idx
= get_font_prop_index (key
);
4048 if (idx
>= FONT_WEIGHT_INDEX
&& idx
<= FONT_WIDTH_INDEX
)
4049 return font_style_symbolic (font
, idx
, 0);
4050 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
4051 return AREF (font
, idx
);
4052 return Fcdr (Fassq (key
, AREF (font
, FONT_EXTRA_INDEX
)));
4055 #ifdef HAVE_WINDOW_SYSTEM
4057 DEFUN ("font-face-attributes", Ffont_face_attributes
, Sfont_face_attributes
, 1, 2, 0,
4058 doc
: /* Return a plist of face attributes generated by FONT.
4059 FONT is a font name, a font-spec, a font-entity, or a font-object.
4060 The return value is a list of the form
4062 \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH)
4064 where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values
4065 compatible with `set-face-attribute'. Some of these key-attribute pairs
4066 may be omitted from the list if they are not specified by FONT.
4068 The optional argument FRAME specifies the frame that the face attributes
4069 are to be displayed on. If omitted, the selected frame is used. */)
4071 Lisp_Object font
, frame
;
4074 Lisp_Object plist
[10];
4079 frame
= selected_frame
;
4080 CHECK_LIVE_FRAME (frame
);
4085 int fontset
= fs_query_fontset (font
, 0);
4086 Lisp_Object name
= font
;
4088 font
= fontset_ascii (fontset
);
4089 font
= font_spec_from_name (name
);
4091 signal_error ("Invalid font name", name
);
4093 else if (! FONTP (font
))
4094 signal_error ("Invalid font object", font
);
4096 val
= AREF (font
, FONT_FAMILY_INDEX
);
4099 plist
[n
++] = QCfamily
;
4100 plist
[n
++] = SYMBOL_NAME (val
);
4103 val
= AREF (font
, FONT_SIZE_INDEX
);
4106 Lisp_Object font_dpi
= AREF (font
, FONT_DPI_INDEX
);
4107 int dpi
= INTEGERP (font_dpi
) ? XINT (font_dpi
) : f
->resy
;
4108 plist
[n
++] = QCheight
;
4109 plist
[n
++] = make_number (PIXEL_TO_POINT (XINT (val
) * 10, dpi
));
4111 else if (FLOATP (val
))
4113 plist
[n
++] = QCheight
;
4114 plist
[n
++] = make_number (10 * (int) XFLOAT_DATA (val
));
4117 val
= FONT_WEIGHT_FOR_FACE (font
);
4120 plist
[n
++] = QCweight
;
4124 val
= FONT_SLANT_FOR_FACE (font
);
4127 plist
[n
++] = QCslant
;
4131 val
= FONT_WIDTH_FOR_FACE (font
);
4134 plist
[n
++] = QCwidth
;
4138 return Flist (n
, plist
);
4143 DEFUN ("font-put", Ffont_put
, Sfont_put
, 3, 3, 0,
4144 doc
: /* Set one property of FONT-SPEC: give property PROP value VAL. */)
4145 (font_spec
, prop
, val
)
4146 Lisp_Object font_spec
, prop
, val
;
4150 CHECK_FONT_SPEC (font_spec
);
4151 idx
= get_font_prop_index (prop
);
4152 if (idx
>= 0 && idx
< FONT_EXTRA_INDEX
)
4153 ASET (font_spec
, idx
, font_prop_validate (idx
, Qnil
, val
));
4155 font_put_extra (font_spec
, prop
, font_prop_validate (0, prop
, val
));
4159 DEFUN ("list-fonts", Flist_fonts
, Slist_fonts
, 1, 4, 0,
4160 doc
: /* List available fonts matching FONT-SPEC on the current frame.
4161 Optional 2nd argument FRAME specifies the target frame.
4162 Optional 3rd argument NUM, if non-nil, limits the number of returned fonts.
4163 Optional 4th argument PREFER, if non-nil, is a font-spec to
4164 control the order of the returned list. Fonts are sorted by
4165 how close they are to PREFER. */)
4166 (font_spec
, frame
, num
, prefer
)
4167 Lisp_Object font_spec
, frame
, num
, prefer
;
4169 Lisp_Object vec
, list
, tail
;
4173 frame
= selected_frame
;
4174 CHECK_LIVE_FRAME (frame
);
4175 CHECK_FONT_SPEC (font_spec
);
4183 if (! NILP (prefer
))
4184 CHECK_FONT_SPEC (prefer
);
4186 vec
= font_list_entities (frame
, font_spec
);
4191 return Fcons (AREF (vec
, 0), Qnil
);
4193 if (! NILP (prefer
))
4194 vec
= font_sort_entites (vec
, prefer
, frame
, 0);
4196 list
= tail
= Fcons (AREF (vec
, 0), Qnil
);
4197 if (n
== 0 || n
> len
)
4199 for (i
= 1; i
< n
; i
++)
4201 Lisp_Object val
= Fcons (AREF (vec
, i
), Qnil
);
4203 XSETCDR (tail
, val
);
4209 DEFUN ("font-family-list", Ffont_family_list
, Sfont_family_list
, 0, 1, 0,
4210 doc
: /* List available font families on the current frame.
4211 Optional argument FRAME, if non-nil, specifies the target frame. */)
4216 struct font_driver_list
*driver_list
;
4220 frame
= selected_frame
;
4221 CHECK_LIVE_FRAME (frame
);
4224 for (driver_list
= f
->font_driver_list
; driver_list
;
4225 driver_list
= driver_list
->next
)
4226 if (driver_list
->driver
->list_family
)
4228 Lisp_Object val
= driver_list
->driver
->list_family (frame
);
4229 Lisp_Object tail
= list
;
4231 for (; CONSP (val
); val
= XCDR (val
))
4232 if (NILP (Fmemq (XCAR (val
), tail
))
4233 && SYMBOLP (XCAR (val
)))
4234 list
= Fcons (SYMBOL_NAME (XCAR (val
)), list
);
4239 DEFUN ("find-font", Ffind_font
, Sfind_font
, 1, 2, 0,
4240 doc
: /* Return a font-entity matching with FONT-SPEC on the current frame.
4241 Optional 2nd argument FRAME, if non-nil, specifies the target frame. */)
4243 Lisp_Object font_spec
, frame
;
4245 Lisp_Object val
= Flist_fonts (font_spec
, frame
, make_number (1), Qnil
);
4252 DEFUN ("font-xlfd-name", Ffont_xlfd_name
, Sfont_xlfd_name
, 1, 2, 0,
4253 doc
: /* Return XLFD name of FONT.
4254 FONT is a font-spec, font-entity, or font-object.
4255 If the name is too long for XLFD (maximum 255 chars), return nil.
4256 If the 2nd optional arg FOLD-WILDCARDS is non-nil,
4257 the consecutive wildcards are folded to one. */)
4258 (font
, fold_wildcards
)
4259 Lisp_Object font
, fold_wildcards
;
4266 if (FONT_OBJECT_P (font
))
4268 Lisp_Object font_name
= AREF (font
, FONT_NAME_INDEX
);
4270 if (STRINGP (font_name
)
4271 && SDATA (font_name
)[0] == '-')
4273 if (NILP (fold_wildcards
))
4275 strcpy (name
, (char *) SDATA (font_name
));
4278 pixel_size
= XFONT_OBJECT (font
)->pixel_size
;
4280 if (font_unparse_xlfd (font
, pixel_size
, name
, 256) < 0)
4283 if (! NILP (fold_wildcards
))
4285 char *p0
= name
, *p1
;
4287 while ((p1
= strstr (p0
, "-*-*")))
4289 strcpy (p1
, p1
+ 2);
4294 return build_string (name
);
4297 DEFUN ("clear-font-cache", Fclear_font_cache
, Sclear_font_cache
, 0, 0, 0,
4298 doc
: /* Clear font cache. */)
4301 Lisp_Object list
, frame
;
4303 FOR_EACH_FRAME (list
, frame
)
4305 FRAME_PTR f
= XFRAME (frame
);
4306 struct font_driver_list
*driver_list
= f
->font_driver_list
;
4308 for (; driver_list
; driver_list
= driver_list
->next
)
4309 if (driver_list
->on
)
4311 Lisp_Object cache
= driver_list
->driver
->get_cache (f
);
4316 && ! EQ (XCAR (XCAR (val
)), driver_list
->driver
->type
))
4318 font_assert (! NILP (val
));
4319 val
= XCDR (XCAR (val
));
4320 if (XINT (XCAR (val
)) == 0)
4322 font_clear_cache (f
, XCAR (val
), driver_list
->driver
);
4323 XSETCDR (cache
, XCDR (val
));
4333 font_fill_lglyph_metrics (glyph
, font_object
)
4334 Lisp_Object glyph
, font_object
;
4336 struct font
*font
= XFONT_OBJECT (font_object
);
4338 /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */
4339 EMACS_INT ecode
= font
->driver
->encode_char (font
, LGLYPH_CHAR (glyph
));
4340 struct font_metrics metrics
;
4342 LGLYPH_SET_CODE (glyph
, ecode
);
4344 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4345 LGLYPH_SET_LBEARING (glyph
, metrics
.lbearing
);
4346 LGLYPH_SET_RBEARING (glyph
, metrics
.rbearing
);
4347 LGLYPH_SET_WIDTH (glyph
, metrics
.width
);
4348 LGLYPH_SET_ASCENT (glyph
, metrics
.ascent
);
4349 LGLYPH_SET_DESCENT (glyph
, metrics
.descent
);
4353 DEFUN ("font-shape-gstring", Ffont_shape_gstring
, Sfont_shape_gstring
, 1, 1, 0,
4354 doc
: /* Shape the glyph-string GSTRING.
4355 Shaping means substituting glyphs and/or adjusting positions of glyphs
4356 to get the correct visual image of character sequences set in the
4357 header of the glyph-string.
4359 If the shaping was successful, the value is GSTRING itself or a newly
4360 created glyph-string. Otherwise, the value is nil. */)
4362 Lisp_Object gstring
;
4365 Lisp_Object font_object
, n
, glyph
;
4368 if (! composition_gstring_p (gstring
))
4369 signal_error ("Invalid glyph-string: ", gstring
);
4370 if (! NILP (LGSTRING_ID (gstring
)))
4372 font_object
= LGSTRING_FONT (gstring
);
4373 CHECK_FONT_OBJECT (font_object
);
4374 font
= XFONT_OBJECT (font_object
);
4375 if (! font
->driver
->shape
)
4378 /* Try at most three times with larger gstring each time. */
4379 for (i
= 0; i
< 3; i
++)
4381 n
= font
->driver
->shape (gstring
);
4384 gstring
= larger_vector (gstring
,
4385 ASIZE (gstring
) + LGSTRING_GLYPH_LEN (gstring
),
4388 if (i
== 3 || XINT (n
) == 0)
4391 glyph
= LGSTRING_GLYPH (gstring
, 0);
4392 from
= LGLYPH_FROM (glyph
);
4393 to
= LGLYPH_TO (glyph
);
4394 for (i
= 1, j
= 0; i
< LGSTRING_GLYPH_LEN (gstring
); i
++)
4396 Lisp_Object
this = LGSTRING_GLYPH (gstring
, i
);
4400 if (NILP (LGLYPH_ADJUSTMENT (this)))
4405 glyph
= LGSTRING_GLYPH (gstring
, j
);
4406 LGLYPH_SET_FROM (glyph
, from
);
4407 LGLYPH_SET_TO (glyph
, to
);
4409 from
= LGLYPH_FROM (this);
4410 to
= LGLYPH_TO (this);
4415 if (from
> LGLYPH_FROM (this))
4416 from
= LGLYPH_FROM (this);
4417 if (to
< LGLYPH_TO (this))
4418 to
= LGLYPH_TO (this);
4424 glyph
= LGSTRING_GLYPH (gstring
, j
);
4425 LGLYPH_SET_FROM (glyph
, from
);
4426 LGLYPH_SET_TO (glyph
, to
);
4428 return composition_gstring_put_cache (gstring
, XINT (n
));
4431 DEFUN ("font-variation-glyphs", Ffont_variation_glyphs
, Sfont_variation_glyphs
,
4433 doc
: /* Return a list of variation glyphs for CHAR in FONT-OBJECT.
4434 Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID),
4436 VARIATION-SELECTOR is a chracter code of variation selection
4437 (#xFE00..#xFE0F or #xE0100..#xE01EF)
4438 GLYPH-ID is a glyph code of the corresponding variation glyph. */)
4439 (font_object
, character
)
4440 Lisp_Object font_object
, character
;
4442 unsigned variations
[256];
4447 CHECK_FONT_OBJECT (font_object
);
4448 CHECK_CHARACTER (character
);
4449 font
= XFONT_OBJECT (font_object
);
4450 if (! font
->driver
->get_variation_glyphs
)
4452 n
= font
->driver
->get_variation_glyphs (font
, XINT (character
), variations
);
4456 for (i
= 0; i
< 255; i
++)
4460 int vs
= (i
< 16 ? 0xFE00 + i
: 0xE0100 + (i
- 16));
4461 /* Stops GCC whining about limited range of data type. */
4462 EMACS_INT var
= variations
[i
];
4464 if (var
> MOST_POSITIVE_FIXNUM
)
4465 code
= Fcons (make_number ((variations
[i
]) >> 16),
4466 make_number ((variations
[i
]) & 0xFFFF));
4468 code
= make_number (variations
[i
]);
4469 val
= Fcons (Fcons (make_number (vs
), code
), val
);
4476 DEFUN ("font-drive-otf", Ffont_drive_otf
, Sfont_drive_otf
, 6, 6, 0,
4477 doc
: /* Apply OpenType features on glyph-string GSTRING-IN.
4478 OTF-FEATURES specifies which features to apply in this format:
4479 (SCRIPT LANGSYS GSUB GPOS)
4481 SCRIPT is a symbol specifying a script tag of OpenType,
4482 LANGSYS is a symbol specifying a langsys tag of OpenType,
4483 GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags.
4485 If LANGYS is nil, the default langsys is selected.
4487 The features are applied in the order they appear in the list. The
4488 symbol `*' means to apply all available features not present in this
4489 list, and the remaining features are ignored. For instance, (vatu
4490 pstf * haln) is to apply vatu and pstf in this order, then to apply
4491 all available features other than vatu, pstf, and haln.
4493 The features are applied to the glyphs in the range FROM and TO of
4494 the glyph-string GSTRING-IN.
4496 If some feature is actually applicable, the resulting glyphs are
4497 produced in the glyph-string GSTRING-OUT from the index INDEX. In
4498 this case, the value is the number of produced glyphs.
4500 If no feature is applicable, no glyph is produced in GSTRING-OUT, and
4503 If GSTRING-OUT is too short to hold produced glyphs, no glyphs are
4504 produced in GSTRING-OUT, and the value is nil.
4506 See the documentation of `font-make-gstring' for the format of
4508 (otf_features
, gstring_in
, from
, to
, gstring_out
, index
)
4509 Lisp_Object otf_features
, gstring_in
, from
, to
, gstring_out
, index
;
4511 Lisp_Object font_object
= LGSTRING_FONT (gstring_in
);
4516 check_otf_features (otf_features
);
4517 CHECK_FONT_OBJECT (font_object
);
4518 font
= XFONT_OBJECT (font_object
);
4519 if (! font
->driver
->otf_drive
)
4520 error ("Font backend %s can't drive OpenType GSUB table",
4521 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4522 CHECK_CONS (otf_features
);
4523 CHECK_SYMBOL (XCAR (otf_features
));
4524 val
= XCDR (otf_features
);
4525 CHECK_SYMBOL (XCAR (val
));
4526 val
= XCDR (otf_features
);
4529 len
= check_gstring (gstring_in
);
4530 CHECK_VECTOR (gstring_out
);
4531 CHECK_NATNUM (from
);
4533 CHECK_NATNUM (index
);
4535 if (XINT (from
) >= XINT (to
) || XINT (to
) > len
)
4536 args_out_of_range_3 (from
, to
, make_number (len
));
4537 if (XINT (index
) >= ASIZE (gstring_out
))
4538 args_out_of_range (index
, make_number (ASIZE (gstring_out
)));
4539 num
= font
->driver
->otf_drive (font
, otf_features
,
4540 gstring_in
, XINT (from
), XINT (to
),
4541 gstring_out
, XINT (index
), 0);
4544 return make_number (num
);
4547 DEFUN ("font-otf-alternates", Ffont_otf_alternates
, Sfont_otf_alternates
,
4549 doc
: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT.
4550 OTF-FEATURES specifies which features of the font FONT-OBJECT to apply
4552 (SCRIPT LANGSYS FEATURE ...)
4553 See the documentation of `font-drive-otf' for more detail.
4555 The value is a list of cons cells of the format (GLYPH-ID . CHARACTER),
4556 where GLYPH-ID is a glyph index of the font, and CHARACTER is a
4557 character code corresponding to the glyph or nil if there's no
4558 corresponding character. */)
4559 (font_object
, character
, otf_features
)
4560 Lisp_Object font_object
, character
, otf_features
;
4563 Lisp_Object gstring_in
, gstring_out
, g
;
4564 Lisp_Object alternates
;
4567 CHECK_FONT_GET_OBJECT (font_object
, font
);
4568 if (! font
->driver
->otf_drive
)
4569 error ("Font backend %s can't drive OpenType GSUB table",
4570 SDATA (SYMBOL_NAME (font
->driver
->type
)));
4571 CHECK_CHARACTER (character
);
4572 CHECK_CONS (otf_features
);
4574 gstring_in
= Ffont_make_gstring (font_object
, make_number (1));
4575 g
= LGSTRING_GLYPH (gstring_in
, 0);
4576 LGLYPH_SET_CHAR (g
, XINT (character
));
4577 gstring_out
= Ffont_make_gstring (font_object
, make_number (10));
4578 while ((num
= font
->driver
->otf_drive (font
, otf_features
, gstring_in
, 0, 1,
4579 gstring_out
, 0, 1)) < 0)
4580 gstring_out
= Ffont_make_gstring (font_object
,
4581 make_number (ASIZE (gstring_out
) * 2));
4583 for (i
= 0; i
< num
; i
++)
4585 Lisp_Object g
= LGSTRING_GLYPH (gstring_out
, i
);
4586 int c
= LGLYPH_CHAR (g
);
4587 unsigned code
= LGLYPH_CODE (g
);
4589 alternates
= Fcons (Fcons (make_number (code
),
4590 c
> 0 ? make_number (c
) : Qnil
),
4593 return Fnreverse (alternates
);
4599 DEFUN ("open-font", Fopen_font
, Sopen_font
, 1, 3, 0,
4600 doc
: /* Open FONT-ENTITY. */)
4601 (font_entity
, size
, frame
)
4602 Lisp_Object font_entity
;
4608 CHECK_FONT_ENTITY (font_entity
);
4610 frame
= selected_frame
;
4611 CHECK_LIVE_FRAME (frame
);
4614 isize
= XINT (AREF (font_entity
, FONT_SIZE_INDEX
));
4617 CHECK_NUMBER_OR_FLOAT (size
);
4619 isize
= POINT_TO_PIXEL (XFLOAT_DATA (size
), XFRAME (frame
)->resy
);
4621 isize
= XINT (size
);
4625 return font_open_entity (XFRAME (frame
), font_entity
, isize
);
4628 DEFUN ("close-font", Fclose_font
, Sclose_font
, 1, 2, 0,
4629 doc
: /* Close FONT-OBJECT. */)
4630 (font_object
, frame
)
4631 Lisp_Object font_object
, frame
;
4633 CHECK_FONT_OBJECT (font_object
);
4635 frame
= selected_frame
;
4636 CHECK_LIVE_FRAME (frame
);
4637 font_close_object (XFRAME (frame
), font_object
);
4641 DEFUN ("query-font", Fquery_font
, Squery_font
, 1, 1, 0,
4642 doc
: /* Return information about FONT-OBJECT.
4643 The value is a vector:
4644 [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH
4647 NAME is a string of the font name (or nil if the font backend doesn't
4650 FILENAME is a string of the font file (or nil if the font backend
4651 doesn't provide a file name).
4653 PIXEL-SIZE is a pixel size by which the font is opened.
4655 SIZE is a maximum advance width of the font in pixels.
4657 ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in
4660 CAPABILITY is a list whose first element is a symbol representing the
4661 font format \(x, opentype, truetype, type1, pcf, or bdf) and the
4662 remaining elements describe the details of the font capability.
4664 If the font is OpenType font, the form of the list is
4665 \(opentype GSUB GPOS)
4666 where GSUB shows which "GSUB" features the font supports, and GPOS
4667 shows which "GPOS" features the font supports. Both GSUB and GPOS are
4668 lists of the format:
4669 \((SCRIPT (LANGSYS FEATURE ...) ...) ...)
4671 If the font is not OpenType font, currently the length of the form is
4674 SCRIPT is a symbol representing OpenType script tag.
4676 LANGSYS is a symbol representing OpenType langsys tag, or nil
4677 representing the default langsys.
4679 FEATURE is a symbol representing OpenType feature tag.
4681 If the font is not OpenType font, CAPABILITY is nil. */)
4683 Lisp_Object font_object
;
4688 CHECK_FONT_GET_OBJECT (font_object
, font
);
4690 val
= Fmake_vector (make_number (9), Qnil
);
4691 ASET (val
, 0, AREF (font_object
, FONT_NAME_INDEX
));
4692 ASET (val
, 1, AREF (font_object
, FONT_FILE_INDEX
));
4693 ASET (val
, 2, make_number (font
->pixel_size
));
4694 ASET (val
, 3, make_number (font
->max_width
));
4695 ASET (val
, 4, make_number (font
->ascent
));
4696 ASET (val
, 5, make_number (font
->descent
));
4697 ASET (val
, 6, make_number (font
->space_width
));
4698 ASET (val
, 7, make_number (font
->average_width
));
4699 if (font
->driver
->otf_capability
)
4700 ASET (val
, 8, Fcons (Qopentype
, font
->driver
->otf_capability (font
)));
4704 DEFUN ("get-font-glyphs", Fget_font_glyphs
, Sget_font_glyphs
, 2, 2, 0,
4705 doc
: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING.
4706 Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */)
4707 (font_object
, string
)
4708 Lisp_Object font_object
, string
;
4714 CHECK_FONT_GET_OBJECT (font_object
, font
);
4715 CHECK_STRING (string
);
4716 len
= SCHARS (string
);
4717 vec
= Fmake_vector (make_number (len
), Qnil
);
4718 for (i
= 0; i
< len
; i
++)
4720 Lisp_Object ch
= Faref (string
, make_number (i
));
4725 struct font_metrics metrics
;
4727 cod
= code
= font
->driver
->encode_char (font
, c
);
4728 if (code
== FONT_INVALID_CODE
)
4730 val
= Fmake_vector (make_number (6), Qnil
);
4731 if (cod
<= MOST_POSITIVE_FIXNUM
)
4732 ASET (val
, 0, make_number (code
));
4734 ASET (val
, 0, Fcons (make_number (code
>> 16),
4735 make_number (code
& 0xFFFF)));
4736 font
->driver
->text_extents (font
, &code
, 1, &metrics
);
4737 ASET (val
, 1, make_number (metrics
.lbearing
));
4738 ASET (val
, 2, make_number (metrics
.rbearing
));
4739 ASET (val
, 3, make_number (metrics
.width
));
4740 ASET (val
, 4, make_number (metrics
.ascent
));
4741 ASET (val
, 5, make_number (metrics
.descent
));
4747 DEFUN ("font-match-p", Ffont_match_p
, Sfont_match_p
, 2, 2, 0,
4748 doc
: /* Return t if and only if font-spec SPEC matches with FONT.
4749 FONT is a font-spec, font-entity, or font-object. */)
4751 Lisp_Object spec
, font
;
4753 CHECK_FONT_SPEC (spec
);
4756 return (font_match_p (spec
, font
) ? Qt
: Qnil
);
4759 DEFUN ("font-at", Ffont_at
, Sfont_at
, 1, 3, 0,
4760 doc
: /* Return a font-object for displaying a character at POSITION.
4761 Optional second arg WINDOW, if non-nil, is a window displaying
4762 the current buffer. It defaults to the currently selected window. */)
4763 (position
, window
, string
)
4764 Lisp_Object position
, window
, string
;
4771 CHECK_NUMBER_COERCE_MARKER (position
);
4772 pos
= XINT (position
);
4773 if (pos
< BEGV
|| pos
>= ZV
)
4774 args_out_of_range_3 (position
, make_number (BEGV
), make_number (ZV
));
4778 CHECK_NUMBER (position
);
4779 CHECK_STRING (string
);
4780 pos
= XINT (position
);
4781 if (pos
< 0 || pos
>= SCHARS (string
))
4782 args_out_of_range (string
, position
);
4785 window
= selected_window
;
4786 CHECK_LIVE_WINDOW (window
);
4787 w
= XWINDOW (window
);
4789 return font_at (-1, pos
, NULL
, w
, string
);
4793 DEFUN ("draw-string", Fdraw_string
, Sdraw_string
, 2, 2, 0,
4794 doc
: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame.
4795 The value is a number of glyphs drawn.
4796 Type C-l to recover what previously shown. */)
4797 (font_object
, string
)
4798 Lisp_Object font_object
, string
;
4800 Lisp_Object frame
= selected_frame
;
4801 FRAME_PTR f
= XFRAME (frame
);
4807 CHECK_FONT_GET_OBJECT (font_object
, font
);
4808 CHECK_STRING (string
);
4809 len
= SCHARS (string
);
4810 code
= alloca (sizeof (unsigned) * len
);
4811 for (i
= 0; i
< len
; i
++)
4813 Lisp_Object ch
= Faref (string
, make_number (i
));
4817 code
[i
] = font
->driver
->encode_char (font
, c
);
4818 if (code
[i
] == FONT_INVALID_CODE
)
4821 face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4823 if (font
->driver
->prepare_face
)
4824 font
->driver
->prepare_face (f
, face
);
4825 width
= font
->driver
->text_extents (font
, code
, i
, NULL
);
4826 len
= font
->driver
->draw_text (f
, face
, 0, font
->ascent
, code
, i
, width
);
4827 if (font
->driver
->done_face
)
4828 font
->driver
->done_face (f
, face
);
4830 return make_number (len
);
4834 #endif /* FONT_DEBUG */
4836 #ifdef HAVE_WINDOW_SYSTEM
4838 DEFUN ("font-info", Ffont_info
, Sfont_info
, 1, 2, 0,
4839 doc
: /* Return information about a font named NAME on frame FRAME.
4840 If FRAME is omitted or nil, use the selected frame.
4841 The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE,
4842 HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT,
4844 OPENED-NAME is the name used for opening the font,
4845 FULL-NAME is the full name of the font,
4846 SIZE is the maximum bound width of the font,
4847 HEIGHT is the height of the font,
4848 BASELINE-OFFSET is the upward offset pixels from ASCII baseline,
4849 RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling
4850 how to compose characters.
4851 If the named font is not yet loaded, return nil. */)
4853 Lisp_Object name
, frame
;
4858 Lisp_Object font_object
;
4860 (*check_window_system_func
) ();
4863 CHECK_STRING (name
);
4865 frame
= selected_frame
;
4866 CHECK_LIVE_FRAME (frame
);
4871 int fontset
= fs_query_fontset (name
, 0);
4874 name
= fontset_ascii (fontset
);
4875 font_object
= font_open_by_name (f
, (char *) SDATA (name
));
4877 else if (FONT_OBJECT_P (name
))
4879 else if (FONT_ENTITY_P (name
))
4880 font_object
= font_open_entity (f
, name
, 0);
4883 struct face
*face
= FACE_FROM_ID (f
, DEFAULT_FACE_ID
);
4884 Lisp_Object entity
= font_matching_entity (f
, face
->lface
, name
);
4886 font_object
= ! NILP (entity
) ? font_open_entity (f
, entity
, 0) : Qnil
;
4888 if (NILP (font_object
))
4890 font
= XFONT_OBJECT (font_object
);
4892 info
= Fmake_vector (make_number (7), Qnil
);
4893 XVECTOR (info
)->contents
[0] = AREF (font_object
, FONT_NAME_INDEX
);
4894 XVECTOR (info
)->contents
[1] = AREF (font_object
, FONT_NAME_INDEX
);
4895 XVECTOR (info
)->contents
[2] = make_number (font
->pixel_size
);
4896 XVECTOR (info
)->contents
[3] = make_number (font
->height
);
4897 XVECTOR (info
)->contents
[4] = make_number (font
->baseline_offset
);
4898 XVECTOR (info
)->contents
[5] = make_number (font
->relative_compose
);
4899 XVECTOR (info
)->contents
[6] = make_number (font
->default_ascent
);
4902 /* As font_object is still in FONT_OBJLIST of the entity, we can't
4903 close it now. Perhaps, we should manage font-objects
4904 by `reference-count'. */
4905 font_close_object (f
, font_object
);
4912 #define BUILD_STYLE_TABLE(TBL) \
4913 build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry))
4916 build_style_table (entry
, nelement
)
4917 struct table_entry
*entry
;
4921 Lisp_Object table
, elt
;
4923 table
= Fmake_vector (make_number (nelement
), Qnil
);
4924 for (i
= 0; i
< nelement
; i
++)
4926 for (j
= 0; entry
[i
].names
[j
]; j
++);
4927 elt
= Fmake_vector (make_number (j
+ 1), Qnil
);
4928 ASET (elt
, 0, make_number (entry
[i
].numeric
));
4929 for (j
= 0; entry
[i
].names
[j
]; j
++)
4930 ASET (elt
, j
+ 1, intern (entry
[i
].names
[j
]));
4931 ASET (table
, i
, elt
);
4936 static Lisp_Object Vfont_log
;
4937 static int font_log_env_checked
;
4939 /* The deferred font-log data of the form [ACTION ARG RESULT].
4940 If ACTION is not nil, that is added to the log when font_add_log is
4941 called next time. At that time, ACTION is set back to nil. */
4942 static Lisp_Object Vfont_log_deferred
;
4944 /* Prepend the font-related logging data in Vfont_log if it is not
4945 `t'. ACTION describes a kind of font-related action (e.g. listing,
4946 opening), ARG is the argument for the action, and RESULT is the
4947 result of the action. */
4949 font_add_log (action
, arg
, result
)
4951 Lisp_Object arg
, result
;
4953 Lisp_Object tail
, val
;
4956 if (! font_log_env_checked
)
4958 Vfont_log
= egetenv ("EMACS_FONT_LOG") ? Qnil
: Qt
;
4959 font_log_env_checked
= 1;
4961 if (EQ (Vfont_log
, Qt
))
4963 if (STRINGP (AREF (Vfont_log_deferred
, 0)))
4965 char *str
= (char *) SDATA (AREF (Vfont_log_deferred
, 0));
4967 ASET (Vfont_log_deferred
, 0, Qnil
);
4968 font_add_log (str
, AREF (Vfont_log_deferred
, 1),
4969 AREF (Vfont_log_deferred
, 2));
4974 Lisp_Object tail
, elt
;
4975 Lisp_Object equalstr
= build_string ("=");
4977 val
= Ffont_xlfd_name (arg
, Qt
);
4978 for (tail
= AREF (arg
, FONT_EXTRA_INDEX
); CONSP (tail
);
4982 if (EQ (XCAR (elt
), QCscript
)
4983 && SYMBOLP (XCDR (elt
)))
4984 val
= concat3 (val
, SYMBOL_NAME (QCscript
),
4985 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
4986 else if (EQ (XCAR (elt
), QClang
)
4987 && SYMBOLP (XCDR (elt
)))
4988 val
= concat3 (val
, SYMBOL_NAME (QClang
),
4989 concat2 (equalstr
, SYMBOL_NAME (XCDR (elt
))));
4990 else if (EQ (XCAR (elt
), QCotf
)
4991 && CONSP (XCDR (elt
)) && SYMBOLP (XCAR (XCDR (elt
))))
4992 val
= concat3 (val
, SYMBOL_NAME (QCotf
),
4994 SYMBOL_NAME (XCAR (XCDR (elt
)))));
5000 val
= Ffont_xlfd_name (result
, Qt
);
5001 if (! FONT_SPEC_P (result
))
5002 val
= concat3 (SYMBOL_NAME (AREF (result
, FONT_TYPE_INDEX
)),
5003 build_string (":"), val
);
5006 else if (CONSP (result
))
5008 result
= Fcopy_sequence (result
);
5009 for (tail
= result
; CONSP (tail
); tail
= XCDR (tail
))
5013 val
= Ffont_xlfd_name (val
, Qt
);
5014 XSETCAR (tail
, val
);
5017 else if (VECTORP (result
))
5019 result
= Fcopy_sequence (result
);
5020 for (i
= 0; i
< ASIZE (result
); i
++)
5022 val
= AREF (result
, i
);
5024 val
= Ffont_xlfd_name (val
, Qt
);
5025 ASET (result
, i
, val
);
5028 Vfont_log
= Fcons (list3 (intern (action
), arg
, result
), Vfont_log
);
5031 /* Record a font-related logging data to be added to Vfont_log when
5032 font_add_log is called next time. ACTION, ARG, RESULT are the same
5036 font_deferred_log (action
, arg
, result
)
5038 Lisp_Object arg
, result
;
5040 ASET (Vfont_log_deferred
, 0, build_string (action
));
5041 ASET (Vfont_log_deferred
, 1, arg
);
5042 ASET (Vfont_log_deferred
, 2, result
);
5045 extern void syms_of_ftfont
P_ (());
5046 extern void syms_of_xfont
P_ (());
5047 extern void syms_of_xftfont
P_ (());
5048 extern void syms_of_ftxfont
P_ (());
5049 extern void syms_of_bdffont
P_ (());
5050 extern void syms_of_w32font
P_ (());
5051 extern void syms_of_atmfont
P_ (());
5052 extern void syms_of_nsfont
P_ (());
5057 sort_shift_bits
[FONT_TYPE_INDEX
] = 0;
5058 sort_shift_bits
[FONT_SLANT_INDEX
] = 2;
5059 sort_shift_bits
[FONT_WEIGHT_INDEX
] = 9;
5060 sort_shift_bits
[FONT_SIZE_INDEX
] = 16;
5061 sort_shift_bits
[FONT_WIDTH_INDEX
] = 23;
5062 /* Note that the other elements in sort_shift_bits are not used. */
5064 staticpro (&font_charset_alist
);
5065 font_charset_alist
= Qnil
;
5067 DEFSYM (Qfont_spec
, "font-spec");
5068 DEFSYM (Qfont_entity
, "font-entity");
5069 DEFSYM (Qfont_object
, "font-object");
5071 DEFSYM (Qopentype
, "opentype");
5073 DEFSYM (Qascii_0
, "ascii-0");
5074 DEFSYM (Qiso8859_1
, "iso8859-1");
5075 DEFSYM (Qiso10646_1
, "iso10646-1");
5076 DEFSYM (Qunicode_bmp
, "unicode-bmp");
5077 DEFSYM (Qunicode_sip
, "unicode-sip");
5081 DEFSYM (QCotf
, ":otf");
5082 DEFSYM (QClang
, ":lang");
5083 DEFSYM (QCscript
, ":script");
5084 DEFSYM (QCantialias
, ":antialias");
5086 DEFSYM (QCfoundry
, ":foundry");
5087 DEFSYM (QCadstyle
, ":adstyle");
5088 DEFSYM (QCregistry
, ":registry");
5089 DEFSYM (QCspacing
, ":spacing");
5090 DEFSYM (QCdpi
, ":dpi");
5091 DEFSYM (QCscalable
, ":scalable");
5092 DEFSYM (QCavgwidth
, ":avgwidth");
5093 DEFSYM (QCfont_entity
, ":font-entity");
5094 DEFSYM (QCfc_unknown_spec
, ":fc-unknown-spec");
5101 staticpro (&null_vector
);
5102 null_vector
= Fmake_vector (make_number (0), Qnil
);
5104 staticpro (&scratch_font_spec
);
5105 scratch_font_spec
= Ffont_spec (0, NULL
);
5106 staticpro (&scratch_font_prefer
);
5107 scratch_font_prefer
= Ffont_spec (0, NULL
);
5109 staticpro (&Vfont_log_deferred
);
5110 Vfont_log_deferred
= Fmake_vector (make_number (3), Qnil
);
5114 staticpro (&otf_list
);
5116 #endif /* HAVE_LIBOTF */
5120 defsubr (&Sfont_spec
);
5121 defsubr (&Sfont_get
);
5122 #ifdef HAVE_WINDOW_SYSTEM
5123 defsubr (&Sfont_face_attributes
);
5125 defsubr (&Sfont_put
);
5126 defsubr (&Slist_fonts
);
5127 defsubr (&Sfont_family_list
);
5128 defsubr (&Sfind_font
);
5129 defsubr (&Sfont_xlfd_name
);
5130 defsubr (&Sclear_font_cache
);
5131 defsubr (&Sfont_shape_gstring
);
5132 defsubr (&Sfont_variation_glyphs
);
5134 defsubr (&Sfont_drive_otf
);
5135 defsubr (&Sfont_otf_alternates
);
5139 defsubr (&Sopen_font
);
5140 defsubr (&Sclose_font
);
5141 defsubr (&Squery_font
);
5142 defsubr (&Sget_font_glyphs
);
5143 defsubr (&Sfont_match_p
);
5144 defsubr (&Sfont_at
);
5146 defsubr (&Sdraw_string
);
5148 #endif /* FONT_DEBUG */
5149 #ifdef HAVE_WINDOW_SYSTEM
5150 defsubr (&Sfont_info
);
5153 DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist
,
5155 Alist of fontname patterns vs the corresponding encoding and repertory info.
5156 Each element looks like (REGEXP . (ENCODING . REPERTORY)),
5157 where ENCODING is a charset or a char-table,
5158 and REPERTORY is a charset, a char-table, or nil.
5160 If ENCODING and REPERTORY are the same, the element can have the form
5161 \(REGEXP . ENCODING).
5163 ENCODING is for converting a character to a glyph code of the font.
5164 If ENCODING is a charset, encoding a character by the charset gives
5165 the corresponding glyph code. If ENCODING is a char-table, looking up
5166 the table by a character gives the corresponding glyph code.
5168 REPERTORY specifies a repertory of characters supported by the font.
5169 If REPERTORY is a charset, all characters beloging to the charset are
5170 supported. If REPERTORY is a char-table, all characters who have a
5171 non-nil value in the table are supported. If REPERTORY is nil, Emacs
5172 gets the repertory information by an opened font and ENCODING. */);
5173 Vfont_encoding_alist
= Qnil
;
5175 DEFVAR_LISP_NOPRO ("font-weight-table", &Vfont_weight_table
,
5176 doc
: /* Vector of valid font weight values.
5177 Each element has the form:
5178 [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...]
5179 NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */);
5180 Vfont_weight_table
= BUILD_STYLE_TABLE (weight_table
);
5182 DEFVAR_LISP_NOPRO ("font-slant-table", &Vfont_slant_table
,
5183 doc
: /* Vector of font slant symbols vs the corresponding numeric values.
5184 See `font-weight-table' for the format of the vector. */);
5185 Vfont_slant_table
= BUILD_STYLE_TABLE (slant_table
);
5187 DEFVAR_LISP_NOPRO ("font-width-table", &Vfont_width_table
,
5188 doc
: /* Alist of font width symbols vs the corresponding numeric values.
5189 See `font-weight-table' for the format of the vector. */);
5190 Vfont_width_table
= BUILD_STYLE_TABLE (width_table
);
5192 staticpro (&font_style_table
);
5193 font_style_table
= Fmake_vector (make_number (3), Qnil
);
5194 ASET (font_style_table
, 0, Vfont_weight_table
);
5195 ASET (font_style_table
, 1, Vfont_slant_table
);
5196 ASET (font_style_table
, 2, Vfont_width_table
);
5198 DEFVAR_LISP ("font-log", &Vfont_log
, doc
: /*
5199 *Logging list of font related actions and results.
5200 The value t means to suppress the logging.
5201 The initial value is set to nil if the environment variable
5202 EMACS_FONT_LOG is set. Otherwise, it is set to t. */);
5205 #ifdef HAVE_WINDOW_SYSTEM
5206 #ifdef HAVE_FREETYPE
5208 #ifdef HAVE_X_WINDOWS
5213 #endif /* HAVE_XFT */
5214 #endif /* HAVE_X_WINDOWS */
5215 #else /* not HAVE_FREETYPE */
5216 #ifdef HAVE_X_WINDOWS
5218 #endif /* HAVE_X_WINDOWS */
5219 #endif /* not HAVE_FREETYPE */
5222 #endif /* HAVE_BDFFONT */
5225 #endif /* WINDOWSNT */
5228 #endif /* HAVE_NS */
5229 #endif /* HAVE_WINDOW_SYSTEM */
5232 /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846
5233 (do not change this comment) */