Commit | Line | Data |
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c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
7ecf3dcb GM |
2 | Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc. |
3 | Copyright (C) 2006, 2007, 2008 | |
c2f5bfd6 KH |
4 | National Institute of Advanced Industrial Science and Technology (AIST) |
5 | Registration Number H13PRO009 | |
6 | ||
7 | This file is part of GNU Emacs. | |
8 | ||
9ec0b715 | 9 | GNU Emacs is free software: you can redistribute it and/or modify |
c2f5bfd6 | 10 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
11 | the Free Software Foundation, either version 3 of the License, or |
12 | (at your option) any later version. | |
c2f5bfd6 KH |
13 | |
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. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 20 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c2f5bfd6 KH |
21 | |
22 | #include <config.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <ctype.h> | |
1701724c KH |
26 | #ifdef HAVE_M17N_FLT |
27 | #include <m17n-flt.h> | |
28 | #endif | |
c2f5bfd6 KH |
29 | |
30 | #include "lisp.h" | |
31 | #include "buffer.h" | |
32 | #include "frame.h" | |
10d16101 | 33 | #include "window.h" |
c2f5bfd6 KH |
34 | #include "dispextern.h" |
35 | #include "charset.h" | |
36 | #include "character.h" | |
37 | #include "composite.h" | |
38 | #include "fontset.h" | |
39 | #include "font.h" | |
40 | ||
43c0454d KH |
41 | #ifdef HAVE_X_WINDOWS |
42 | #include "xterm.h" | |
43 | #endif /* HAVE_X_WINDOWS */ | |
44 | ||
45 | #ifdef HAVE_NTGUI | |
46 | #include "w32term.h" | |
47 | #endif /* HAVE_NTGUI */ | |
48 | ||
49 | #ifdef MAC_OS | |
50 | #include "macterm.h" | |
51 | #endif /* MAC_OS */ | |
52 | ||
35027d0c | 53 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
c2f5bfd6 | 54 | |
e0708580 KH |
55 | Lisp_Object Qopentype; |
56 | ||
35027d0c | 57 | /* Important character set strings. */ |
9e1bb909 | 58 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 59 | |
c2f5bfd6 KH |
60 | /* Special vector of zero length. This is repeatedly used by (struct |
61 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 62 | static Lisp_Object null_vector; |
c2f5bfd6 | 63 | |
d0ab1ebe KH |
64 | static Lisp_Object Vfont_weight_table, Vfont_slant_table, Vfont_width_table; |
65 | ||
66 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ | |
c2f5bfd6 KH |
67 | static Lisp_Object font_style_table; |
68 | ||
d0ab1ebe KH |
69 | /* Structure used for tables mapping weight, slant, and width numeric |
70 | values and their names. */ | |
71 | ||
72 | struct table_entry | |
73 | { | |
74 | int numeric; | |
75 | /* The first one is a valid name as a face attribute. | |
76 | The second one (if any) is a typical name in XLFD field. */ | |
77 | char *names[5]; | |
78 | Lisp_Object *symbols; | |
79 | }; | |
80 | ||
81 | /* Table of weight numeric values and their names. This table must be | |
82 | sorted by numeric values in ascending order. */ | |
83 | ||
84 | static struct table_entry weight_table[] = | |
85 | { | |
86 | { 0, { "thin" }}, | |
87 | { 20, { "ultra-light", "ultralight" }}, | |
88 | { 40, { "extra-light", "extralight" }}, | |
89 | { 50, { "light" }}, | |
90 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
91 | { 100, { "normal", "medium", "regular" }}, | |
92 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, | |
93 | { 200, { "bold" }}, | |
94 | { 205, { "extra-bold", "extrabold" }}, | |
95 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
96 | }; | |
97 | ||
98 | /* Table of slant numeric values and their names. This table must be | |
99 | sorted by numeric values in ascending order. */ | |
100 | ||
101 | static struct table_entry slant_table[] = | |
102 | { | |
103 | { 0, { "reverse-oblique", "ro" }}, | |
104 | { 10, { "reverse-italic", "ri" }}, | |
105 | { 100, { "normal", "r" }}, | |
106 | { 200, { "italic" ,"i", "ot" }}, | |
107 | { 210, { "oblique", "o" }} | |
108 | }; | |
109 | ||
110 | /* Table of width numeric values and their names. This table must be | |
111 | sorted by numeric values in ascending order. */ | |
112 | ||
113 | static struct table_entry width_table[] = | |
114 | { | |
115 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
116 | { 63, { "extra-condensed", "extracondensed" }}, | |
117 | { 75, { "condensed", "compressed", "narrow" }}, | |
118 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
119 | { 100, { "normal", "medium", "regular" }}, | |
120 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, | |
121 | { 125, { "expanded" }}, | |
122 | { 150, { "extra-expanded", "extraexpanded" }}, | |
123 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
124 | }; | |
125 | ||
35027d0c | 126 | extern Lisp_Object Qnormal; |
c2f5bfd6 KH |
127 | |
128 | /* Symbols representing keys of normal font properties. */ | |
129 | extern Lisp_Object QCtype, QCfamily, QCweight, QCslant, QCwidth, QCsize, QCname; | |
35027d0c | 130 | Lisp_Object QCfoundry, QCadstyle, QCregistry; |
c2f5bfd6 | 131 | /* Symbols representing keys of font extra info. */ |
35027d0c KH |
132 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
133 | Lisp_Object QCantialias, QCfont_entity, QCfc_unknown_spec; | |
ec6fe57c KH |
134 | /* Symbols representing values of font spacing property. */ |
135 | Lisp_Object Qc, Qm, Qp, Qd; | |
c2f5bfd6 | 136 | |
819e81df KH |
137 | Lisp_Object Vfont_encoding_alist; |
138 | ||
1701724c KH |
139 | /* Alist of font registry symbol and the corresponding charsets |
140 | information. The information is retrieved from | |
141 | Vfont_encoding_alist on demand. | |
142 | ||
143 | Eash element has the form: | |
144 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
145 | or | |
146 | (REGISTRY . nil) | |
147 | ||
148 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
149 | encodes a character code to a glyph code of a font, and | |
150 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
151 | character is supported by a font. | |
152 | ||
153 | The latter form means that the information for REGISTRY couldn't be | |
154 | retrieved. */ | |
155 | static Lisp_Object font_charset_alist; | |
156 | ||
f697fff0 KH |
157 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
158 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
159 | here. */ |
160 | static struct font_driver_list *font_driver_list; | |
161 | ||
35027d0c KH |
162 | \f |
163 | ||
164 | /* Creaters of font-related Lisp object. */ | |
165 | ||
166 | Lisp_Object | |
167 | font_make_spec () | |
168 | { | |
169 | Lisp_Object font_spec; | |
170 | struct font_spec *spec | |
171 | = ((struct font_spec *) | |
172 | allocate_pseudovector (VECSIZE (struct font_spec), | |
173 | FONT_SPEC_MAX, PVEC_FONT)); | |
174 | XSETFONT (font_spec, spec); | |
175 | return font_spec; | |
176 | } | |
177 | ||
178 | Lisp_Object | |
179 | font_make_entity () | |
180 | { | |
181 | Lisp_Object font_entity; | |
182 | struct font_entity *entity | |
183 | = ((struct font_entity *) | |
184 | allocate_pseudovector (VECSIZE (struct font_entity), | |
185 | FONT_ENTITY_MAX, PVEC_FONT)); | |
186 | XSETFONT (font_entity, entity); | |
187 | return font_entity; | |
188 | } | |
189 | ||
190 | Lisp_Object | |
191 | font_make_object (size) | |
192 | int size; | |
193 | { | |
194 | Lisp_Object font_object; | |
195 | struct font *font | |
196 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
197 | XSETFONT (font_object, font); | |
198 | ||
199 | return font_object; | |
200 | } | |
201 | ||
202 | \f | |
203 | ||
ec6fe57c | 204 | static int font_pixel_size P_ ((FRAME_PTR f, Lisp_Object)); |
c2f5bfd6 | 205 | static Lisp_Object font_open_entity P_ ((FRAME_PTR, Lisp_Object, int)); |
35027d0c KH |
206 | static Lisp_Object font_matching_entity P_ ((FRAME_PTR, Lisp_Object *, |
207 | Lisp_Object)); | |
c2f5bfd6 KH |
208 | |
209 | /* Number of registered font drivers. */ | |
210 | static int num_font_drivers; | |
211 | ||
35027d0c KH |
212 | |
213 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
214 | If STR is "*", it returns nil. | |
2f286d4f KH |
215 | If FORCE_SYMBOL is zero and all characters in STR are digits, it |
216 | returns an integer. Otherwise, it returns a symbol interned from | |
217 | STR. */ | |
35027d0c KH |
218 | |
219 | Lisp_Object | |
2f286d4f | 220 | font_intern_prop (str, len, force_symbol) |
35027d0c KH |
221 | char *str; |
222 | int len; | |
2f286d4f | 223 | int force_symbol; |
35027d0c KH |
224 | { |
225 | int i; | |
d0ab1ebe | 226 | Lisp_Object tem; |
35027d0c KH |
227 | Lisp_Object obarray; |
228 | ||
229 | if (len == 1 && *str == '*') | |
230 | return Qnil; | |
2f286d4f | 231 | if (!force_symbol && len >=1 && isdigit (*str)) |
35027d0c KH |
232 | { |
233 | for (i = 1; i < len; i++) | |
234 | if (! isdigit (str[i])) | |
235 | break; | |
236 | if (i == len) | |
237 | return make_number (atoi (str)); | |
238 | } | |
239 | ||
240 | /* The following code is copied from the function intern (in lread.c). */ | |
241 | obarray = Vobarray; | |
242 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) | |
243 | obarray = check_obarray (obarray); | |
244 | tem = oblookup (obarray, str, len, len); | |
245 | if (SYMBOLP (tem)) | |
246 | return tem; | |
247 | return Fintern (make_unibyte_string (str, len), obarray); | |
248 | } | |
249 | ||
9331887d | 250 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 251 | |
9331887d KH |
252 | static int |
253 | font_pixel_size (f, spec) | |
254 | FRAME_PTR f; | |
255 | Lisp_Object spec; | |
256 | { | |
819e81df | 257 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
258 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
259 | double point_size; | |
35027d0c | 260 | int dpi, pixel_size; |
d0ab1ebe | 261 | Lisp_Object val; |
51c01100 | 262 | |
9331887d KH |
263 | if (INTEGERP (size)) |
264 | return XINT (size); | |
265 | if (NILP (size)) | |
819e81df | 266 | return 0; |
d0ab1ebe | 267 | font_assert (FLOATP (size)); |
9331887d | 268 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
269 | val = AREF (spec, FONT_DPI_INDEX); |
270 | if (INTEGERP (val)) | |
17e28f6d | 271 | dpi = XINT (val); |
9331887d KH |
272 | else |
273 | dpi = f->resy; | |
274 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
275 | return pixel_size; | |
819e81df KH |
276 | #else |
277 | return 1; | |
278 | #endif | |
9331887d KH |
279 | } |
280 | ||
c2f5bfd6 | 281 | |
35027d0c KH |
282 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
283 | font vector. If VAL is not valid (i.e. not registered in | |
284 | font_style_table), return -1 if NOERROR is zero, and return a | |
285 | proper index if NOERROR is nonzero. In that case, register VAL in | |
286 | font_style_table if VAL is a symbol, and return a closest index if | |
287 | VAL is an integer. */ | |
c2f5bfd6 | 288 | |
35027d0c KH |
289 | int |
290 | font_style_to_value (prop, val, noerror) | |
c2f5bfd6 | 291 | enum font_property_index prop; |
35027d0c KH |
292 | Lisp_Object val; |
293 | int noerror; | |
c2f5bfd6 | 294 | { |
35027d0c KH |
295 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
296 | int len = ASIZE (table); | |
d0ab1ebe | 297 | int i, j; |
c2f5bfd6 | 298 | |
35027d0c | 299 | if (SYMBOLP (val)) |
c2f5bfd6 | 300 | { |
72606e45 | 301 | unsigned char *s; |
35027d0c KH |
302 | Lisp_Object args[2], elt; |
303 | ||
304 | /* At first try exact match. */ | |
305 | for (i = 0; i < len; i++) | |
d0ab1ebe KH |
306 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
307 | if (EQ (val, AREF (AREF (table, i), j))) | |
308 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
309 | | (i << 4) | (j - 1)); | |
35027d0c | 310 | /* Try also with case-folding match. */ |
72606e45 | 311 | s = SDATA (SYMBOL_NAME (val)); |
35027d0c | 312 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
313 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
314 | { | |
315 | elt = AREF (AREF (table, i), j); | |
72606e45 | 316 | if (xstrcasecmp (s, SDATA (SYMBOL_NAME (elt))) == 0) |
d0ab1ebe KH |
317 | return ((XINT (AREF (AREF (table, i), 0)) << 8) |
318 | | (i << 4) | (j - 1)); | |
319 | } | |
35027d0c KH |
320 | if (! noerror) |
321 | return -1; | |
322 | if (len == 255) | |
323 | abort (); | |
d0ab1ebe KH |
324 | elt = Fmake_vector (make_number (2), make_number (255)); |
325 | ASET (elt, 1, val); | |
35027d0c | 326 | args[0] = table; |
d0ab1ebe | 327 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 328 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
d0ab1ebe | 329 | return (255 << 8) | (i << 4); |
c2f5bfd6 | 330 | } |
35027d0c KH |
331 | else |
332 | { | |
d0ab1ebe | 333 | int i, last_n; |
35027d0c | 334 | int numeric = XINT (val); |
c2f5bfd6 | 335 | |
d0ab1ebe | 336 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 337 | { |
d0ab1ebe | 338 | int n = XINT (AREF (AREF (table, i), 0)); |
c2f5bfd6 | 339 | |
35027d0c | 340 | if (numeric == n) |
d0ab1ebe | 341 | return (n << 8) | (i << 4); |
35027d0c KH |
342 | if (numeric < n) |
343 | { | |
344 | if (! noerror) | |
345 | return -1; | |
d0ab1ebe KH |
346 | return ((i == 0 || n - numeric < numeric - last_n) |
347 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 348 | } |
35027d0c | 349 | last_n = n; |
35027d0c KH |
350 | } |
351 | if (! noerror) | |
352 | return -1; | |
d0ab1ebe | 353 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
354 | } |
355 | } | |
c2f5bfd6 KH |
356 | |
357 | Lisp_Object | |
35027d0c KH |
358 | font_style_symbolic (font, prop, for_face) |
359 | Lisp_Object font; | |
360 | enum font_property_index prop; | |
361 | int for_face; | |
c2f5bfd6 | 362 | { |
35027d0c | 363 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
364 | Lisp_Object table, elt; |
365 | int i; | |
c2f5bfd6 | 366 | |
35027d0c KH |
367 | if (NILP (val)) |
368 | return Qnil; | |
369 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
d0ab1ebe KH |
370 | i = XINT (val) & 0xFF; |
371 | font_assert (((i >> 4) & 0xF) < ASIZE (table)); | |
372 | elt = AREF (table, ((i >> 4) & 0xF)); | |
373 | font_assert ((i & 0xF) + 1 < ASIZE (elt)); | |
374 | return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); | |
c2f5bfd6 KH |
375 | } |
376 | ||
377 | extern Lisp_Object Vface_alternative_font_family_alist; | |
378 | ||
1701724c KH |
379 | extern Lisp_Object find_font_encoding P_ ((Lisp_Object)); |
380 | ||
35027d0c | 381 | |
819e81df KH |
382 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
383 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
384 | of the font. REPERTORY is a charset symbol or nil. */ | |
385 | ||
386 | Lisp_Object | |
387 | find_font_encoding (fontname) | |
388 | Lisp_Object fontname; | |
389 | { | |
390 | Lisp_Object tail, elt; | |
391 | ||
392 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
393 | { | |
394 | elt = XCAR (tail); | |
395 | if (CONSP (elt) | |
396 | && STRINGP (XCAR (elt)) | |
397 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
398 | && (SYMBOLP (XCDR (elt)) | |
399 | ? CHARSETP (XCDR (elt)) | |
400 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
401 | return (XCDR (elt)); | |
402 | } | |
403 | /* We don't know the encoding of this font. Let's assume `ascii'. */ | |
404 | return Qascii; | |
405 | } | |
406 | ||
1701724c KH |
407 | /* Return encoding charset and repertory charset for REGISTRY in |
408 | ENCODING and REPERTORY correspondingly. If correct information for | |
409 | REGISTRY is available, return 0. Otherwise return -1. */ | |
410 | ||
411 | int | |
412 | font_registry_charsets (registry, encoding, repertory) | |
413 | Lisp_Object registry; | |
414 | struct charset **encoding, **repertory; | |
415 | { | |
416 | Lisp_Object val; | |
417 | int encoding_id, repertory_id; | |
418 | ||
35027d0c | 419 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
420 | if (! NILP (val)) |
421 | { | |
422 | val = XCDR (val); | |
423 | if (NILP (val)) | |
424 | return -1; | |
425 | encoding_id = XINT (XCAR (val)); | |
426 | repertory_id = XINT (XCDR (val)); | |
427 | } | |
428 | else | |
429 | { | |
430 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
431 | if (SYMBOLP (val) && CHARSETP (val)) | |
432 | { | |
433 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
434 | } | |
435 | else if (CONSP (val)) | |
436 | { | |
437 | if (! CHARSETP (XCAR (val))) | |
438 | goto invalid_entry; | |
439 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
440 | if (NILP (XCDR (val))) | |
441 | repertory_id = -1; | |
442 | else | |
443 | { | |
444 | if (! CHARSETP (XCDR (val))) | |
445 | goto invalid_entry; | |
446 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
447 | } | |
51c01100 | 448 | } |
1701724c KH |
449 | else |
450 | goto invalid_entry; | |
451 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
452 | font_charset_alist | |
453 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
454 | } | |
455 | ||
456 | if (encoding) | |
457 | *encoding = CHARSET_FROM_ID (encoding_id); | |
458 | if (repertory) | |
459 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
460 | return 0; | |
461 | ||
462 | invalid_entry: | |
463 | font_charset_alist | |
464 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
465 | return -1; | |
466 | } | |
467 | ||
c2f5bfd6 | 468 | \f |
45eb10fb KH |
469 | /* Font property value validaters. See the comment of |
470 | font_property_table for the meaning of the arguments. */ | |
471 | ||
35027d0c | 472 | static Lisp_Object font_prop_validate P_ ((int, Lisp_Object, Lisp_Object)); |
45eb10fb KH |
473 | static Lisp_Object font_prop_validate_symbol P_ ((Lisp_Object, Lisp_Object)); |
474 | static Lisp_Object font_prop_validate_style P_ ((Lisp_Object, Lisp_Object)); | |
475 | static Lisp_Object font_prop_validate_non_neg P_ ((Lisp_Object, Lisp_Object)); | |
476 | static Lisp_Object font_prop_validate_spacing P_ ((Lisp_Object, Lisp_Object)); | |
35027d0c | 477 | static int get_font_prop_index P_ ((Lisp_Object)); |
c2f5bfd6 KH |
478 | |
479 | static Lisp_Object | |
45eb10fb | 480 | font_prop_validate_symbol (prop, val) |
ec6fe57c | 481 | Lisp_Object prop, val; |
c2f5bfd6 KH |
482 | { |
483 | if (STRINGP (val)) | |
35027d0c KH |
484 | val = Fintern (val, Qnil); |
485 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 486 | val = Qerror; |
35027d0c KH |
487 | else if (EQ (prop, QCregistry)) |
488 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
489 | return val; |
490 | } | |
491 | ||
35027d0c | 492 | |
c2f5bfd6 | 493 | static Lisp_Object |
35027d0c KH |
494 | font_prop_validate_style (style, val) |
495 | Lisp_Object style, val; | |
c2f5bfd6 | 496 | { |
35027d0c KH |
497 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
498 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
499 | : FONT_WIDTH_INDEX); | |
500 | int n; | |
501 | if (INTEGERP (val)) | |
c2f5bfd6 | 502 | { |
35027d0c | 503 | n = XINT (val); |
64b900e3 | 504 | if (((n >> 4) & 0xF) |
35027d0c | 505 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
506 | val = Qerror; |
507 | else | |
508 | { | |
64b900e3 KH |
509 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
510 | ||
511 | if ((n & 0xF) + 1 >= ASIZE (elt)) | |
512 | val = Qerror; | |
513 | else if (XINT (AREF (elt, 0)) != (n >> 8)) | |
c2f5bfd6 KH |
514 | val = Qerror; |
515 | } | |
516 | } | |
35027d0c KH |
517 | else if (SYMBOLP (val)) |
518 | { | |
519 | int n = font_style_to_value (prop, val, 0); | |
520 | ||
521 | val = n >= 0 ? make_number (n) : Qerror; | |
522 | } | |
523 | else | |
524 | val = Qerror; | |
c2f5bfd6 KH |
525 | return val; |
526 | } | |
527 | ||
528 | static Lisp_Object | |
45eb10fb | 529 | font_prop_validate_non_neg (prop, val) |
ec6fe57c | 530 | Lisp_Object prop, val; |
c2f5bfd6 KH |
531 | { |
532 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
533 | ? val : Qerror); | |
534 | } | |
535 | ||
536 | static Lisp_Object | |
45eb10fb | 537 | font_prop_validate_spacing (prop, val) |
ec6fe57c KH |
538 | Lisp_Object prop, val; |
539 | { | |
540 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
541 | return val; | |
3692570f KH |
542 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
543 | { | |
544 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
545 | ||
546 | if (spacing == 'c' || spacing == 'C') | |
547 | return make_number (FONT_SPACING_CHARCELL); | |
548 | if (spacing == 'm' || spacing == 'M') | |
549 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 550 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
551 | return make_number (FONT_SPACING_PROPORTIONAL); |
552 | if (spacing == 'd' || spacing == 'D') | |
553 | return make_number (FONT_SPACING_DUAL); | |
554 | } | |
ec6fe57c KH |
555 | return Qerror; |
556 | } | |
557 | ||
1701724c KH |
558 | static Lisp_Object |
559 | font_prop_validate_otf (prop, val) | |
560 | Lisp_Object prop, val; | |
561 | { | |
562 | Lisp_Object tail, tmp; | |
563 | int i; | |
564 | ||
565 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
566 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
567 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
568 | if (! CONSP (val)) | |
569 | return Qerror; | |
570 | if (! SYMBOLP (XCAR (val))) | |
571 | return Qerror; | |
572 | tail = XCDR (val); | |
573 | if (NILP (tail)) | |
574 | return val; | |
575 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
576 | return Qerror; | |
577 | for (i = 0; i < 2; i++) | |
578 | { | |
579 | tail = XCDR (tail); | |
580 | if (NILP (tail)) | |
581 | return val; | |
582 | if (! CONSP (tail)) | |
583 | return Qerror; | |
584 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
585 | if (! SYMBOLP (XCAR (tmp))) | |
586 | return Qerror; | |
587 | if (! NILP (tmp)) | |
588 | return Qerror; | |
589 | } | |
590 | return val; | |
591 | } | |
592 | ||
ec6fe57c KH |
593 | /* Structure of known font property keys and validater of the |
594 | values. */ | |
c2f5bfd6 KH |
595 | struct |
596 | { | |
ec6fe57c | 597 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 598 | Lisp_Object *key; |
45eb10fb KH |
599 | /* Function to validate PROP's value VAL, or NULL if any value is |
600 | ok. The value is VAL or its regularized value if VAL is valid, | |
601 | and Qerror if not. */ | |
602 | Lisp_Object (*validater) P_ ((Lisp_Object prop, Lisp_Object val)); | |
ec6fe57c KH |
603 | } font_property_table[] = |
604 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
605 | { &QCfoundry, font_prop_validate_symbol }, |
606 | { &QCfamily, font_prop_validate_symbol }, | |
607 | { &QCadstyle, font_prop_validate_symbol }, | |
608 | { &QCregistry, font_prop_validate_symbol }, | |
609 | { &QCweight, font_prop_validate_style }, | |
610 | { &QCslant, font_prop_validate_style }, | |
611 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 612 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
613 | { &QCdpi, font_prop_validate_non_neg }, |
614 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
615 | { &QCavgwidth, font_prop_validate_non_neg }, |
616 | /* The order of the above entries must match with enum | |
617 | font_property_index. */ | |
618 | { &QClang, font_prop_validate_symbol }, | |
619 | { &QCscript, font_prop_validate_symbol }, | |
620 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
621 | }; |
622 | ||
45eb10fb | 623 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
624 | #define FONT_PROPERTY_TABLE_SIZE \ |
625 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
626 | ||
45eb10fb | 627 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 628 | already known property. */ |
45eb10fb | 629 | |
ec6fe57c | 630 | static int |
35027d0c | 631 | get_font_prop_index (key) |
c2f5bfd6 KH |
632 | Lisp_Object key; |
633 | { | |
35027d0c KH |
634 | int i; |
635 | ||
636 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
637 | if (EQ (key, *font_property_table[i].key)) | |
638 | return i; | |
ec6fe57c | 639 | return -1; |
c2f5bfd6 KH |
640 | } |
641 | ||
35027d0c KH |
642 | /* Validate the font property. The property key is specified by the |
643 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
644 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 645 | |
c2f5bfd6 | 646 | static Lisp_Object |
35027d0c KH |
647 | font_prop_validate (idx, prop, val) |
648 | int idx; | |
649 | Lisp_Object prop, val; | |
c2f5bfd6 | 650 | { |
35027d0c | 651 | Lisp_Object validated; |
c2f5bfd6 | 652 | |
1f09f444 KH |
653 | if (NILP (val)) |
654 | return val; | |
35027d0c KH |
655 | if (NILP (prop)) |
656 | prop = *font_property_table[idx].key; | |
657 | else | |
ec6fe57c | 658 | { |
35027d0c KH |
659 | idx = get_font_prop_index (prop); |
660 | if (idx < 0) | |
661 | return val; | |
ec6fe57c | 662 | } |
35027d0c KH |
663 | validated = (font_property_table[idx].validater) (prop, val); |
664 | if (EQ (validated, Qerror)) | |
665 | signal_error ("invalid font property", Fcons (prop, val)); | |
666 | return validated; | |
c2f5bfd6 | 667 | } |
51c01100 | 668 | |
35027d0c KH |
669 | |
670 | /* Store VAL as a value of extra font property PROP in FONT while | |
671 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 672 | |
01dbeb0b | 673 | Lisp_Object |
ec6fe57c | 674 | font_put_extra (font, prop, val) |
9331887d | 675 | Lisp_Object font, prop, val; |
9331887d KH |
676 | { |
677 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 678 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
679 | |
680 | if (NILP (slot)) | |
681 | { | |
35027d0c KH |
682 | Lisp_Object prev = Qnil; |
683 | ||
684 | while (CONSP (extra) | |
685 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
686 | prev = extra, extra = XCDR (extra); | |
687 | if (NILP (prev)) | |
688 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); | |
689 | else | |
690 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); | |
ec6fe57c | 691 | return val; |
9331887d | 692 | } |
9331887d | 693 | XSETCDR (slot, val); |
ec6fe57c | 694 | return val; |
9331887d KH |
695 | } |
696 | ||
c2f5bfd6 KH |
697 | \f |
698 | /* Font name parser and unparser */ | |
699 | ||
ec6fe57c KH |
700 | static int parse_matrix P_ ((char *)); |
701 | static int font_expand_wildcards P_ ((Lisp_Object *, int)); | |
702 | static int font_parse_name P_ ((char *, Lisp_Object)); | |
c2f5bfd6 | 703 | |
ec6fe57c | 704 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
705 | enum xlfd_field_index |
706 | { | |
707 | XLFD_FOUNDRY_INDEX, | |
708 | XLFD_FAMILY_INDEX, | |
709 | XLFD_WEIGHT_INDEX, | |
710 | XLFD_SLANT_INDEX, | |
711 | XLFD_SWIDTH_INDEX, | |
712 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
713 | XLFD_PIXEL_INDEX, |
714 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
715 | XLFD_RESX_INDEX, |
716 | XLFD_RESY_INDEX, | |
717 | XLFD_SPACING_INDEX, | |
718 | XLFD_AVGWIDTH_INDEX, | |
719 | XLFD_REGISTRY_INDEX, | |
720 | XLFD_ENCODING_INDEX, | |
721 | XLFD_LAST_INDEX | |
722 | }; | |
723 | ||
ec6fe57c | 724 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
725 | enum xlfd_field_mask |
726 | { | |
727 | XLFD_FOUNDRY_MASK = 0x0001, | |
728 | XLFD_FAMILY_MASK = 0x0002, | |
729 | XLFD_WEIGHT_MASK = 0x0004, | |
730 | XLFD_SLANT_MASK = 0x0008, | |
731 | XLFD_SWIDTH_MASK = 0x0010, | |
732 | XLFD_ADSTYLE_MASK = 0x0020, | |
733 | XLFD_PIXEL_MASK = 0x0040, | |
734 | XLFD_POINT_MASK = 0x0080, | |
735 | XLFD_RESX_MASK = 0x0100, | |
736 | XLFD_RESY_MASK = 0x0200, | |
737 | XLFD_SPACING_MASK = 0x0400, | |
738 | XLFD_AVGWIDTH_MASK = 0x0800, | |
739 | XLFD_REGISTRY_MASK = 0x1000, | |
740 | XLFD_ENCODING_MASK = 0x2000 | |
741 | }; | |
742 | ||
743 | ||
c2f5bfd6 KH |
744 | /* Parse P pointing the pixel/point size field of the form |
745 | `[A B C D]' which specifies a transformation matrix: | |
746 | ||
747 | A B 0 | |
748 | C D 0 | |
749 | 0 0 1 | |
750 | ||
751 | by which all glyphs of the font are transformed. The spec says | |
752 | that scalar value N for the pixel/point size is equivalent to: | |
753 | A = N * resx/resy, B = C = 0, D = N. | |
754 | ||
755 | Return the scalar value N if the form is valid. Otherwise return | |
756 | -1. */ | |
757 | ||
758 | static int | |
759 | parse_matrix (p) | |
760 | char *p; | |
761 | { | |
762 | double matrix[4]; | |
763 | char *end; | |
764 | int i; | |
765 | ||
766 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
767 | { | |
768 | if (*p == '~') | |
769 | matrix[i] = - strtod (p + 1, &end); | |
770 | else | |
771 | matrix[i] = strtod (p, &end); | |
772 | p = end; | |
773 | } | |
774 | return (i == 4 ? (int) matrix[3] : -1); | |
775 | } | |
776 | ||
4485a28e KH |
777 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
778 | multiple fields to fill in all 14 XLFD fields while restring a | |
779 | field position by its contents. */ | |
780 | ||
ec6fe57c | 781 | static int |
4485a28e KH |
782 | font_expand_wildcards (field, n) |
783 | Lisp_Object field[XLFD_LAST_INDEX]; | |
784 | int n; | |
785 | { | |
786 | /* Copy of FIELD. */ | |
787 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
788 | /* Array of information about where this element can go. Nth | |
789 | element is for Nth element of FIELD. */ | |
790 | struct { | |
791 | /* Minimum possible field. */ | |
792 | int from; | |
793 | /* Maxinum possible field. */ | |
794 | int to; | |
795 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
796 | int mask; | |
797 | } range[XLFD_LAST_INDEX]; | |
798 | int i, j; | |
ec6fe57c | 799 | int range_from, range_to; |
4485a28e KH |
800 | unsigned range_mask; |
801 | ||
802 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
803 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
804 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 805 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 806 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
807 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
808 | ||
809 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
810 | field. The value is shifted to left one bit by one in the | |
811 | following loop. */ | |
812 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
813 | range_mask = (range_mask << 1) | 1; | |
814 | ||
ec6fe57c KH |
815 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
816 | position-based retriction for FIELD[I]. */ | |
817 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
818 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 819 | { |
4485a28e KH |
820 | Lisp_Object val = field[i]; |
821 | ||
822 | tmp[i] = val; | |
823 | if (NILP (val)) | |
824 | { | |
825 | /* Wildcard. */ | |
826 | range[i].from = range_from; | |
827 | range[i].to = range_to; | |
828 | range[i].mask = range_mask; | |
829 | } | |
830 | else | |
831 | { | |
832 | /* The triplet FROM, TO, and MASK is a value-based | |
833 | retriction for FIELD[I]. */ | |
834 | int from, to; | |
835 | unsigned mask; | |
836 | ||
837 | if (INTEGERP (val)) | |
838 | { | |
839 | int numeric = XINT (val); | |
840 | ||
ef18374f KH |
841 | if (i + 1 == n) |
842 | from = to = XLFD_ENCODING_INDEX, | |
843 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
844 | else if (numeric == 0) |
845 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
846 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
847 | else if (numeric <= 48) |
848 | from = to = XLFD_PIXEL_INDEX, | |
849 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 850 | else |
ec6fe57c | 851 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
852 | mask = XLFD_LARGENUM_MASK; |
853 | } | |
35027d0c | 854 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
855 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
856 | mask = XLFD_NULL_MASK; | |
857 | else if (i == 0) | |
858 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
859 | else if (i + 1 == n) | |
860 | { | |
861 | Lisp_Object name = SYMBOL_NAME (val); | |
862 | ||
863 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
864 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
865 | mask = XLFD_REGENC_MASK; | |
866 | else | |
867 | from = to = XLFD_ENCODING_INDEX, | |
868 | mask = XLFD_ENCODING_MASK; | |
869 | } | |
ef18374f KH |
870 | else if (range_from <= XLFD_WEIGHT_INDEX |
871 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 872 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 873 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
874 | else if (range_from <= XLFD_SLANT_INDEX |
875 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 876 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 877 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
878 | else if (range_from <= XLFD_SWIDTH_INDEX |
879 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 880 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
881 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
882 | else | |
883 | { | |
ec6fe57c | 884 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
885 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
886 | else | |
887 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
888 | mask = XLFD_SYMBOL_MASK; | |
889 | } | |
890 | ||
891 | /* Merge position-based and value-based restrictions. */ | |
892 | mask &= range_mask; | |
893 | while (from < range_from) | |
894 | mask &= ~(1 << from++); | |
895 | while (from < 14 && ! (mask & (1 << from))) | |
896 | from++; | |
897 | while (to > range_to) | |
898 | mask &= ~(1 << to--); | |
899 | while (to >= 0 && ! (mask & (1 << to))) | |
900 | to--; | |
901 | if (from > to) | |
902 | return -1; | |
903 | range[i].from = from; | |
904 | range[i].to = to; | |
905 | range[i].mask = mask; | |
906 | ||
907 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
908 | { |
909 | /* The range is narrowed by value-based restrictions. | |
910 | Reflect it to the other fields. */ | |
911 | ||
912 | /* Following fields should be after FROM. */ | |
913 | range_from = from; | |
914 | /* Preceding fields should be before TO. */ | |
915 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
916 | { | |
917 | /* Check FROM for non-wildcard field. */ | |
918 | if (! NILP (tmp[j]) && range[j].from < from) | |
919 | { | |
920 | while (range[j].from < from) | |
921 | range[j].mask &= ~(1 << range[j].from++); | |
922 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
923 | from++; | |
924 | range[j].from = from; | |
925 | } | |
926 | else | |
927 | from = range[j].from; | |
928 | if (range[j].to > to) | |
929 | { | |
930 | while (range[j].to > to) | |
931 | range[j].mask &= ~(1 << range[j].to--); | |
932 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
933 | to--; | |
934 | range[j].to = to; | |
935 | } | |
936 | else | |
937 | to = range[j].to; | |
938 | if (from > to) | |
939 | return -1; | |
940 | } | |
941 | } | |
4485a28e KH |
942 | } |
943 | } | |
944 | ||
945 | /* Decide all fileds from restrictions in RANGE. */ | |
946 | for (i = j = 0; i < n ; i++) | |
947 | { | |
948 | if (j < range[i].from) | |
949 | { | |
950 | if (i == 0 || ! NILP (tmp[i - 1])) | |
951 | /* None of TMP[X] corresponds to Jth field. */ | |
952 | return -1; | |
953 | for (; j < range[i].from; j++) | |
954 | field[j] = Qnil; | |
955 | } | |
956 | field[j++] = tmp[i]; | |
957 | } | |
958 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
959 | return -1; | |
960 | for (; j < XLFD_LAST_INDEX; j++) | |
961 | field[j] = Qnil; | |
962 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
963 | field[XLFD_ENCODING_INDEX] | |
964 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
965 | return 0; | |
966 | } | |
967 | ||
43a1d19b SM |
968 | |
969 | #ifdef ENABLE_CHECKING | |
970 | /* Match a 14-field XLFD pattern against a full XLFD font name. */ | |
971 | static int | |
972 | font_match_xlfd (char *pattern, char *name) | |
973 | { | |
974 | while (*pattern && *name) | |
975 | { | |
976 | if (*pattern == *name) | |
977 | pattern++; | |
978 | else if (*pattern == '*') | |
979 | if (*name == pattern[1]) | |
980 | pattern += 2; | |
981 | else | |
982 | ; | |
983 | else | |
984 | return 0; | |
985 | name++; | |
986 | } | |
987 | return 1; | |
988 | } | |
989 | ||
990 | /* Make sure the font object matches the XLFD font name. */ | |
991 | static int | |
992 | font_check_xlfd_parse (Lisp_Object font, char *name) | |
993 | { | |
994 | char name_check[256]; | |
995 | font_unparse_xlfd (font, 0, name_check, 255); | |
996 | return font_match_xlfd (name_check, name); | |
997 | } | |
998 | ||
999 | #endif | |
1000 | ||
35027d0c | 1001 | |
ef18374f | 1002 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
1003 | (font-spec or font-entity). Size property of FONT is set as |
1004 | follows: | |
1005 | specified XLFD fields FONT property | |
1006 | --------------------- ------------- | |
1007 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
1008 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
1009 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
1010 | ||
ec6fe57c | 1011 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 1012 | |
ec6fe57c KH |
1013 | FONT is usually a font-spec, but when this function is called from |
1014 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 1015 | a fully specified XLFD. */ |
c2f5bfd6 KH |
1016 | |
1017 | int | |
ec6fe57c | 1018 | font_parse_xlfd (name, font) |
c2f5bfd6 KH |
1019 | char *name; |
1020 | Lisp_Object font; | |
c2f5bfd6 KH |
1021 | { |
1022 | int len = strlen (name); | |
35027d0c | 1023 | int i, j, n; |
cf23b845 | 1024 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 1025 | Lisp_Object val; |
4485a28e | 1026 | char *p; |
c2f5bfd6 KH |
1027 | |
1028 | if (len > 255) | |
1029 | /* Maximum XLFD name length is 255. */ | |
1030 | return -1; | |
ec6fe57c KH |
1031 | /* Accept "*-.." as a fully specified XLFD. */ |
1032 | if (name[0] == '*' && name[1] == '-') | |
1033 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; | |
1034 | else | |
1035 | i = 0; | |
1036 | for (p = name + i; *p; p++) | |
35027d0c KH |
1037 | if (*p == '-') |
1038 | { | |
1039 | f[i++] = p + 1; | |
1040 | if (i == XLFD_LAST_INDEX) | |
1041 | break; | |
1042 | } | |
1043 | f[i] = name + len; | |
c2f5bfd6 | 1044 | |
2f286d4f KH |
1045 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1046 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1047 | |
ec6fe57c | 1048 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1049 | { |
35027d0c | 1050 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1051 | int pixel_size; |
1052 | ||
2f286d4f KH |
1053 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1054 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1055 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1056 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1057 | { |
2f286d4f | 1058 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1059 | if (! NILP (val)) |
4485a28e | 1060 | { |
2f286d4f | 1061 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1062 | return -1; |
1063 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1064 | } |
1065 | } | |
2f286d4f | 1066 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1067 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1068 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1069 | else | |
1070 | ASET (font, FONT_REGISTRY_INDEX, | |
1071 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1072 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1073 | 1)); | |
ec6fe57c KH |
1074 | p = f[XLFD_PIXEL_INDEX]; |
1075 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1076 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1077 | else |
1078 | { | |
35027d0c KH |
1079 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1080 | if (INTEGERP (val)) | |
ec6fe57c KH |
1081 | ASET (font, FONT_SIZE_INDEX, val); |
1082 | else | |
1083 | { | |
1084 | double point_size = -1; | |
1085 | ||
d0ab1ebe | 1086 | font_assert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1087 | p = f[XLFD_POINT_INDEX]; |
1088 | if (*p == '[') | |
1089 | point_size = parse_matrix (p); | |
1090 | else if (isdigit (*p)) | |
1091 | point_size = atoi (p), point_size /= 10; | |
1092 | if (point_size >= 0) | |
1093 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1094 | } |
1095 | } | |
ec6fe57c | 1096 | |
35027d0c KH |
1097 | ASET (font, FONT_DPI_INDEX, INTERN_FIELD (XLFD_RESY_INDEX)); |
1098 | val = INTERN_FIELD (XLFD_SPACING_INDEX); | |
1099 | if (! NILP (val)) | |
ec6fe57c | 1100 | { |
35027d0c KH |
1101 | val = font_prop_validate_spacing (QCspacing, val); |
1102 | if (! INTEGERP (val)) | |
1103 | return -1; | |
1104 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1105 | } |
ec6fe57c KH |
1106 | p = f[XLFD_AVGWIDTH_INDEX]; |
1107 | if (*p == '~') | |
1108 | p++; | |
35027d0c | 1109 | ASET (font, FONT_AVGWIDTH_INDEX, |
2f286d4f | 1110 | font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 1)); |
4485a28e KH |
1111 | } |
1112 | else | |
c2f5bfd6 | 1113 | { |
4485a28e | 1114 | int wild_card_found = 0; |
ec6fe57c | 1115 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1116 | |
35027d0c KH |
1117 | if (FONT_ENTITY_P (font)) |
1118 | return -1; | |
ec6fe57c | 1119 | for (j = 0; j < i; j++) |
4485a28e | 1120 | { |
ec6fe57c | 1121 | if (*f[j] == '*') |
4485a28e | 1122 | { |
ec6fe57c KH |
1123 | if (f[j][1] && f[j][1] != '-') |
1124 | return -1; | |
1125 | prop[j] = Qnil; | |
1126 | wild_card_found = 1; | |
1127 | } | |
ec6fe57c | 1128 | else if (j + 1 < i) |
35027d0c | 1129 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1130 | else |
2f286d4f | 1131 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1132 | } |
1133 | if (! wild_card_found) | |
c2f5bfd6 | 1134 | return -1; |
ec6fe57c | 1135 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1136 | return -1; |
ec6fe57c | 1137 | |
35027d0c KH |
1138 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1139 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1140 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1141 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1142 | if (! NILP (prop[i])) |
35027d0c KH |
1143 | { |
1144 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1145 | return -1; | |
1146 | ASET (font, j, make_number (n)); | |
1147 | } | |
1148 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1149 | val = prop[XLFD_REGISTRY_INDEX]; |
1150 | if (NILP (val)) | |
c2f5bfd6 | 1151 | { |
ec6fe57c KH |
1152 | val = prop[XLFD_ENCODING_INDEX]; |
1153 | if (! NILP (val)) | |
35027d0c | 1154 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1155 | } |
ec6fe57c | 1156 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1157 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1158 | else |
35027d0c KH |
1159 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1160 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1161 | if (! NILP (val)) |
35027d0c | 1162 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1163 | |
1164 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1165 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1166 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1167 | { |
ec6fe57c | 1168 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1169 | |
ec6fe57c KH |
1170 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1171 | } | |
c2f5bfd6 | 1172 | |
35027d0c KH |
1173 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1174 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1175 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1176 | { | |
1177 | val = font_prop_validate_spacing (QCspacing, | |
1178 | prop[XLFD_SPACING_INDEX]); | |
1179 | if (! INTEGERP (val)) | |
1180 | return -1; | |
1181 | ASET (font, FONT_SPACING_INDEX, val); | |
1182 | } | |
ec6fe57c | 1183 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1184 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1185 | } |
1186 | ||
ec6fe57c | 1187 | return 0; |
c2f5bfd6 KH |
1188 | } |
1189 | ||
1190 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1191 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1192 | 0, use PIXEL_SIZE instead. */ | |
1193 | ||
1194 | int | |
1195 | font_unparse_xlfd (font, pixel_size, name, nbytes) | |
1196 | Lisp_Object font; | |
1bb1d99b | 1197 | int pixel_size; |
c2f5bfd6 KH |
1198 | char *name; |
1199 | int nbytes; | |
1200 | { | |
ec6fe57c | 1201 | char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 KH |
1202 | Lisp_Object val; |
1203 | int i, j, len = 0; | |
1204 | ||
d0ab1ebe | 1205 | font_assert (FONTP (font)); |
c2f5bfd6 KH |
1206 | |
1207 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1208 | i++, j++) | |
1209 | { | |
1210 | if (i == FONT_ADSTYLE_INDEX) | |
1211 | j = XLFD_ADSTYLE_INDEX; | |
1212 | else if (i == FONT_REGISTRY_INDEX) | |
1213 | j = XLFD_REGISTRY_INDEX; | |
1214 | val = AREF (font, i); | |
1215 | if (NILP (val)) | |
1bb1d99b KH |
1216 | { |
1217 | if (j == XLFD_REGISTRY_INDEX) | |
1218 | f[j] = "*-*", len += 4; | |
1219 | else | |
1220 | f[j] = "*", len += 2; | |
1221 | } | |
c2f5bfd6 KH |
1222 | else |
1223 | { | |
1224 | if (SYMBOLP (val)) | |
1225 | val = SYMBOL_NAME (val); | |
1bb1d99b KH |
1226 | if (j == XLFD_REGISTRY_INDEX |
1227 | && ! strchr ((char *) SDATA (val), '-')) | |
1228 | { | |
1229 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1230 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1231 | { | |
1232 | f[j] = alloca (SBYTES (val) + 3); | |
1233 | sprintf (f[j], "%s-*", SDATA (val)); | |
1234 | len += SBYTES (val) + 3; | |
1235 | } | |
1236 | else | |
1237 | { | |
1238 | f[j] = alloca (SBYTES (val) + 4); | |
1239 | sprintf (f[j], "%s*-*", SDATA (val)); | |
1240 | len += SBYTES (val) + 4; | |
1241 | } | |
1242 | } | |
1243 | else | |
1244 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
c2f5bfd6 KH |
1245 | } |
1246 | } | |
1247 | ||
1248 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1249 | i++, j++) | |
1250 | { | |
35027d0c | 1251 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 KH |
1252 | if (NILP (val)) |
1253 | f[j] = "*", len += 2; | |
1254 | else | |
1255 | { | |
35027d0c | 1256 | val = SYMBOL_NAME (val); |
c2f5bfd6 KH |
1257 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; |
1258 | } | |
1259 | } | |
1260 | ||
1261 | val = AREF (font, FONT_SIZE_INDEX); | |
d0ab1ebe | 1262 | font_assert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1263 | if (INTEGERP (val)) |
1264 | { | |
35027d0c | 1265 | i = XINT (val); |
81aefea4 SM |
1266 | if (i <= 0) |
1267 | i = pixel_size; | |
c2f5bfd6 | 1268 | if (i > 0) |
81aefea4 SM |
1269 | { |
1270 | f[XLFD_PIXEL_INDEX] = alloca (22); | |
1271 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", i) + 1; | |
1272 | } | |
1273 | else | |
1274 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; | |
c2f5bfd6 KH |
1275 | } |
1276 | else if (FLOATP (val)) | |
1277 | { | |
35027d0c | 1278 | i = XFLOAT_DATA (val) * 10; |
ec6fe57c | 1279 | f[XLFD_PIXEL_INDEX] = alloca (12); |
ec6fe57c | 1280 | len += sprintf (f[XLFD_PIXEL_INDEX], "*-%d", i) + 1; |
c2f5bfd6 KH |
1281 | } |
1282 | else | |
ec6fe57c KH |
1283 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1284 | ||
35027d0c | 1285 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1286 | { |
35027d0c KH |
1287 | i = XINT (AREF (font, FONT_DPI_INDEX)); |
1288 | f[XLFD_RESX_INDEX] = alloca (22); | |
1289 | len += sprintf (f[XLFD_RESX_INDEX], | |
1290 | "%d-%d", i, i) + 1; | |
c2f5bfd6 KH |
1291 | } |
1292 | else | |
35027d0c KH |
1293 | f[XLFD_RESX_INDEX] = "*-*", len += 4; |
1294 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
ec6fe57c | 1295 | { |
35027d0c | 1296 | int spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1297 | |
35027d0c KH |
1298 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1299 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1300 | : spacing <= FONT_SPACING_MONO ? "m" | |
1301 | : "c"); | |
1302 | len += 2; | |
ec6fe57c | 1303 | } |
35027d0c KH |
1304 | else |
1305 | f[XLFD_SPACING_INDEX] = "*", len += 2; | |
1306 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1307 | { | |
1308 | f[XLFD_AVGWIDTH_INDEX] = alloca (11); | |
1309 | len += sprintf (f[XLFD_AVGWIDTH_INDEX], | |
1310 | "%d", XINT (AREF (font, FONT_AVGWIDTH_INDEX))) + 1; | |
1311 | } | |
1312 | else | |
1313 | f[XLFD_AVGWIDTH_INDEX] = "*", len += 2; | |
ec6fe57c | 1314 | len++; /* for terminating '\0'. */ |
c2f5bfd6 KH |
1315 | if (len >= nbytes) |
1316 | return -1; | |
35027d0c | 1317 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1318 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1319 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1320 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1321 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1322 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1323 | f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1324 | } |
1325 | ||
8c102d5b CY |
1326 | /* Parse NAME (null terminated) and store information in FONT |
1327 | (font-spec or font-entity). NAME is supplied in either the | |
1328 | Fontconfig or GTK font name format. If NAME is successfully | |
1329 | parsed, return 0. Otherwise return -1. | |
1330 | ||
1331 | The fontconfig format is | |
1332 | ||
1333 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1334 | ||
1335 | The GTK format is | |
1336 | ||
1337 | FAMILY [PROPS...] [SIZE] | |
1338 | ||
1339 | This function tries to guess which format it is. */ | |
ef18374f KH |
1340 | |
1341 | int | |
ec6fe57c | 1342 | font_parse_fcname (name, font) |
ef18374f KH |
1343 | char *name; |
1344 | Lisp_Object font; | |
ef18374f | 1345 | { |
8c102d5b CY |
1346 | char *p, *q; |
1347 | char *size_beg = NULL, *size_end = NULL; | |
1348 | char *props_beg = NULL, *family_end = NULL; | |
9331887d | 1349 | int len = strlen (name); |
ef18374f | 1350 | |
ec6fe57c KH |
1351 | if (len == 0) |
1352 | return -1; | |
8c102d5b CY |
1353 | |
1354 | for (p = name; *p; p++) | |
ef18374f | 1355 | { |
8c102d5b CY |
1356 | if (*p == '\\' && p[1]) |
1357 | p++; | |
1358 | else if (*p == ':') | |
ef18374f | 1359 | { |
8c102d5b CY |
1360 | family_end = p; |
1361 | props_beg = p + 1; | |
1362 | break; | |
1363 | } | |
1364 | else if (*p == '-') | |
1365 | { | |
1366 | int size_found = 1; | |
1367 | for (q = p + 1; *q && *q != ':'; q++) | |
32a7e53c | 1368 | if (! isdigit(*q) && *q != '.') |
8c102d5b CY |
1369 | { |
1370 | size_found = 0; | |
1371 | break; | |
1372 | } | |
1373 | if (size_found) | |
1374 | { | |
1375 | family_end = p; | |
1376 | size_beg = p + 1; | |
1377 | size_end = q; | |
1378 | break; | |
1379 | } | |
ef18374f | 1380 | } |
ef18374f | 1381 | } |
9331887d | 1382 | |
8c102d5b CY |
1383 | if (family_end) |
1384 | { | |
1385 | /* A fontconfig name with size and/or property data. */ | |
1386 | if (family_end > name) | |
1387 | { | |
1388 | Lisp_Object family; | |
1389 | family = font_intern_prop (name, family_end - name, 1); | |
1390 | ASET (font, FONT_FAMILY_INDEX, family); | |
1391 | } | |
1392 | if (size_beg) | |
1393 | { | |
1394 | double point_size = strtod (size_beg, &size_end); | |
1395 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1396 | if (*size_end == ':' && size_end[1]) | |
1397 | props_beg = size_end + 1; | |
1398 | } | |
1399 | if (props_beg) | |
1400 | { | |
1401 | /* Now parse ":KEY=VAL" patterns. Store known keys and values in | |
1402 | extra, copy unknown ones to COPY. It is stored in extra slot by | |
1403 | the key QCfc_unknown_spec. */ | |
1404 | char *copy; | |
1405 | ||
1406 | name = copy = alloca (name + len - props_beg); | |
1407 | if (! copy) | |
1408 | return -1; | |
1409 | ||
1410 | p = props_beg; | |
1411 | while (*p) | |
1412 | { | |
1413 | Lisp_Object val; | |
1414 | int word_len, prop; | |
1415 | ||
1416 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1417 | ||
1418 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); | |
1419 | word_len = q - p; | |
1420 | if (*q != '=') | |
1421 | { | |
1422 | /* Must be an enumerated value. */ | |
1423 | val = font_intern_prop (p, q - p, 1); | |
1424 | if (PROP_MATCH ("light", 5) | |
1425 | || PROP_MATCH ("medium", 6) | |
1426 | || PROP_MATCH ("demibold", 8) | |
1427 | || PROP_MATCH ("bold", 4) | |
1428 | || PROP_MATCH ("black", 5)) | |
1429 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); | |
1430 | else if (PROP_MATCH ("roman", 5) | |
1431 | || PROP_MATCH ("italic", 6) | |
1432 | || PROP_MATCH ("oblique", 7)) | |
1433 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); | |
1434 | else if (PROP_MATCH ("charcell", 8)) | |
1435 | ASET (font, FONT_SPACING_INDEX, | |
1436 | make_number (FONT_SPACING_CHARCELL)); | |
1437 | else if (PROP_MATCH ("mono", 4)) | |
1438 | ASET (font, FONT_SPACING_INDEX, | |
1439 | make_number (FONT_SPACING_MONO)); | |
1440 | else if (PROP_MATCH ("proportional", 12)) | |
1441 | ASET (font, FONT_SPACING_INDEX, | |
1442 | make_number (FONT_SPACING_PROPORTIONAL)); | |
1443 | else | |
1444 | { | |
1445 | /* Unknown key */ | |
1446 | bcopy (p, copy, word_len); | |
1447 | copy += word_len; | |
1448 | } | |
1449 | } | |
1450 | else /* KEY=VAL pairs */ | |
1451 | { | |
1452 | Lisp_Object key; | |
1453 | char *keyhead = p; | |
51c01100 | 1454 | |
8c102d5b CY |
1455 | if (PROP_MATCH ("pixelsize=", 10)) |
1456 | prop = FONT_SIZE_INDEX; | |
1457 | else | |
1458 | { | |
1459 | key = font_intern_prop (p, q - p, 1); | |
1460 | prop = get_font_prop_index (key); | |
1461 | } | |
1462 | p = q + 1; | |
1463 | for (q = p; *q && *q != ':'; q++); | |
1464 | ||
1465 | val = font_intern_prop (p, word_len, 0); | |
1466 | if (! NILP (val)) | |
1467 | { | |
1468 | if (prop >= FONT_FOUNDRY_INDEX | |
1469 | && prop < FONT_EXTRA_INDEX) | |
1470 | ASET (font, prop, | |
1471 | font_prop_validate (prop, Qnil, val)); | |
1472 | else if (prop >= 0) | |
1473 | Ffont_put (font, key, val); | |
1474 | else | |
1475 | bcopy (keyhead, copy, q - keyhead); | |
1476 | copy += q - keyhead; | |
1477 | } | |
1478 | } | |
1479 | p = *q ? q + 1 : q; | |
1480 | #undef PROP_MATCH | |
1481 | } | |
1482 | if (name != copy) | |
1483 | font_put_extra (font, QCfc_unknown_spec, | |
1484 | make_unibyte_string (name, copy - name)); | |
1485 | } | |
1486 | } | |
1487 | else | |
ef18374f | 1488 | { |
8c102d5b CY |
1489 | /* Either a fontconfig-style name with no size and property |
1490 | data, or a GTK-style name. */ | |
1491 | Lisp_Object prop; | |
1492 | int word_len, prop_found = 0; | |
ef18374f | 1493 | |
8c102d5b | 1494 | for (p = name; *p; p = *q ? q + 1 : q) |
ef18374f | 1495 | { |
8c102d5b | 1496 | if (isdigit (*p)) |
9331887d | 1497 | { |
8c102d5b CY |
1498 | char *r; |
1499 | int size_found = 1; | |
1500 | for (q = p + 1; *q && *q != ' '; q++) | |
1501 | if (! isdigit (*q)) | |
1502 | { | |
1503 | size_found = 0; | |
1504 | break; | |
1505 | } | |
1506 | if (size_found) | |
1507 | { | |
1508 | double point_size = strtod (p, &q); | |
1509 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1510 | continue; | |
1511 | } | |
027a33c0 | 1512 | } |
8c102d5b CY |
1513 | |
1514 | for (q = p + 1; *q && *q != ' '; q++) | |
1515 | if (*q == '\\' && q[1]) | |
1516 | q++; | |
1517 | word_len = q - p; | |
1518 | ||
1519 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1520 | ||
1521 | if (PROP_MATCH ("Ultra-Light", 11)) | |
9331887d | 1522 | { |
8c102d5b CY |
1523 | prop_found = 1; |
1524 | prop = font_intern_prop ("ultra-light", 11, 1); | |
1525 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1526 | } |
8c102d5b | 1527 | else if (PROP_MATCH ("Light", 5)) |
9331887d | 1528 | { |
8c102d5b CY |
1529 | prop_found = 1; |
1530 | prop = font_intern_prop ("light", 5, 1); | |
1531 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1532 | } |
8c102d5b | 1533 | else if (PROP_MATCH ("Semi-Bold", 9)) |
9331887d | 1534 | { |
8c102d5b CY |
1535 | prop_found = 1; |
1536 | prop = font_intern_prop ("semi-bold", 9, 1); | |
1537 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1538 | } | |
1539 | else if (PROP_MATCH ("Bold", 4)) | |
1540 | { | |
1541 | prop_found = 1; | |
1542 | prop = font_intern_prop ("bold", 4, 1); | |
1543 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
ef18374f | 1544 | } |
8c102d5b CY |
1545 | else if (PROP_MATCH ("Italic", 6)) |
1546 | { | |
1547 | prop_found = 1; | |
1548 | prop = font_intern_prop ("italic", 4, 1); | |
1549 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1550 | } | |
1551 | else if (PROP_MATCH ("Oblique", 7)) | |
1552 | { | |
1553 | prop_found = 1; | |
1554 | prop = font_intern_prop ("oblique", 7, 1); | |
1555 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1556 | } | |
1557 | else { | |
1558 | if (prop_found) | |
1559 | return -1; /* Unknown property in GTK-style font name. */ | |
1560 | family_end = q; | |
1561 | } | |
ef18374f | 1562 | } |
8c102d5b | 1563 | #undef PROP_MATCH |
9ba6fd41 | 1564 | |
8c102d5b CY |
1565 | if (family_end) |
1566 | { | |
1567 | Lisp_Object family; | |
1568 | family = font_intern_prop (name, family_end - name, 1); | |
1569 | ASET (font, FONT_FAMILY_INDEX, family); | |
1570 | } | |
1571 | } | |
17ab8f5d | 1572 | |
9331887d | 1573 | return 0; |
ef18374f KH |
1574 | } |
1575 | ||
1576 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1577 | NAME (NBYTES length), and return the name length. If | |
1578 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1579 | ||
1580 | int | |
1581 | font_unparse_fcname (font, pixel_size, name, nbytes) | |
1582 | Lisp_Object font; | |
1583 | int pixel_size; | |
1584 | char *name; | |
1585 | int nbytes; | |
1586 | { | |
35027d0c | 1587 | Lisp_Object tail, val; |
ec6fe57c | 1588 | int point_size; |
d0ab1ebe | 1589 | int dpi; |
ec6fe57c | 1590 | int i, len = 1; |
ef18374f | 1591 | char *p; |
a9262bb8 | 1592 | Lisp_Object styles[3]; |
417a1b10 | 1593 | char *style_names[3] = { "weight", "slant", "width" }; |
35027d0c | 1594 | char work[256]; |
ef18374f | 1595 | |
ec6fe57c | 1596 | val = AREF (font, FONT_FAMILY_INDEX); |
35027d0c KH |
1597 | if (STRINGP (val)) |
1598 | len += SBYTES (val); | |
ec6fe57c KH |
1599 | |
1600 | val = AREF (font, FONT_SIZE_INDEX); | |
1601 | if (INTEGERP (val)) | |
ef18374f | 1602 | { |
ec6fe57c KH |
1603 | if (XINT (val) != 0) |
1604 | pixel_size = XINT (val); | |
1605 | point_size = -1; | |
1606 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1607 | } |
ec6fe57c | 1608 | else if (FLOATP (val)) |
ef18374f | 1609 | { |
ec6fe57c KH |
1610 | pixel_size = -1; |
1611 | point_size = (int) XFLOAT_DATA (val); | |
1612 | len += 11; /* for "-NUM" */ | |
ef18374f | 1613 | } |
ec6fe57c KH |
1614 | |
1615 | val = AREF (font, FONT_FOUNDRY_INDEX); | |
35027d0c | 1616 | if (STRINGP (val)) |
ef18374f | 1617 | /* ":foundry=NAME" */ |
35027d0c | 1618 | len += 9 + SBYTES (val); |
ec6fe57c | 1619 | |
35027d0c | 1620 | for (i = 0; i < 3; i++) |
a9262bb8 | 1621 | { |
35027d0c KH |
1622 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
1623 | if (! NILP (styles[i])) | |
1624 | len += sprintf (work, ":%s=%s", style_names[i], | |
1625 | SDATA (SYMBOL_NAME (styles[i]))); | |
ec6fe57c | 1626 | } |
35027d0c KH |
1627 | |
1628 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
1629 | len += sprintf (work, ":dpi=%d", dpi); | |
1630 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
1631 | len += strlen (":spacing=100"); | |
1632 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1633 | len += strlen (":scalable=false"); /* or ":scalable=true" */ | |
1634 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
ec6fe57c | 1635 | { |
35027d0c KH |
1636 | Lisp_Object key = XCAR (XCAR (tail)), val = XCDR (XCAR (tail)); |
1637 | ||
1638 | len += SBYTES (SYMBOL_NAME (key)) + 1; /* for :KEY= */ | |
1639 | if (STRINGP (val)) | |
1640 | len += SBYTES (val); | |
1641 | else if (INTEGERP (val)) | |
1642 | len += sprintf (work, "%d", XINT (val)); | |
1643 | else if (SYMBOLP (val)) | |
1644 | len += (NILP (val) ? 5 : 4); /* for "false" or "true" */ | |
ec6fe57c KH |
1645 | } |
1646 | ||
ef18374f KH |
1647 | if (len > nbytes) |
1648 | return -1; | |
1649 | p = name; | |
1650 | if (! NILP (AREF (font, FONT_FAMILY_INDEX))) | |
35027d0c | 1651 | p += sprintf(p, "%s", SDATA (SYMBOL_NAME (AREF (font, FONT_FAMILY_INDEX)))); |
ec6fe57c KH |
1652 | if (point_size > 0) |
1653 | { | |
1654 | if (p == name) | |
1655 | p += sprintf (p, "%d", point_size); | |
1656 | else | |
1657 | p += sprintf (p, "-%d", point_size); | |
1658 | } | |
ef18374f KH |
1659 | else if (pixel_size > 0) |
1660 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
35027d0c | 1661 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
a9262bb8 KH |
1662 | p += sprintf (p, ":foundry=%s", |
1663 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1664 | for (i = 0; i < 3; i++) | |
35027d0c | 1665 | if (! NILP (styles[i])) |
a9262bb8 | 1666 | p += sprintf (p, ":%s=%s", style_names[i], |
35027d0c KH |
1667 | SDATA (SYMBOL_NAME (styles[i]))); |
1668 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
1669 | p += sprintf (p, ":dpi=%d", XINT (AREF (font, FONT_DPI_INDEX))); | |
1670 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
1671 | p += sprintf (p, ":spacing=%d", XINT (AREF (font, FONT_SPACING_INDEX))); | |
1672 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1673 | { | |
1674 | if (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0) | |
1675 | p += sprintf (p, ":scalable=true"); | |
1676 | else | |
1677 | p += sprintf (p, ":scalable=false"); | |
1678 | } | |
ef18374f KH |
1679 | return (p - name); |
1680 | } | |
1681 | ||
1682 | /* Parse NAME (null terminated) and store information in FONT | |
1683 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1684 | 0. Otherwise return -1. */ |
ef18374f KH |
1685 | |
1686 | static int | |
ec6fe57c | 1687 | font_parse_name (name, font) |
ef18374f KH |
1688 | char *name; |
1689 | Lisp_Object font; | |
ef18374f KH |
1690 | { |
1691 | if (name[0] == '-' || index (name, '*')) | |
e950d6f1 | 1692 | return font_parse_xlfd (name, font); |
ec6fe57c | 1693 | return font_parse_fcname (name, font); |
ef18374f KH |
1694 | } |
1695 | ||
35027d0c KH |
1696 | |
1697 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1698 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1699 | part. */ | |
45eb10fb | 1700 | |
c2f5bfd6 | 1701 | void |
35027d0c KH |
1702 | font_parse_family_registry (family, registry, font_spec) |
1703 | Lisp_Object family, registry, font_spec; | |
c2f5bfd6 | 1704 | { |
35027d0c KH |
1705 | int len; |
1706 | char *p0, *p1; | |
1707 | ||
d0ab1ebe KH |
1708 | if (! NILP (family) |
1709 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1710 | { |
35027d0c KH |
1711 | CHECK_STRING (family); |
1712 | len = SBYTES (family); | |
1713 | p0 = (char *) SDATA (family); | |
1714 | p1 = index (p0, '-'); | |
1715 | if (p1) | |
c2f5bfd6 | 1716 | { |
d0ab1ebe KH |
1717 | if ((*p0 != '*' || p1 - p0 > 1) |
1718 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) | |
2f286d4f | 1719 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1720 | p1++; |
1721 | len -= p1 - p0; | |
2f286d4f | 1722 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1723 | } |
35027d0c KH |
1724 | else |
1725 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1726 | } |
35027d0c | 1727 | if (! NILP (registry)) |
c2f5bfd6 | 1728 | { |
35027d0c KH |
1729 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1730 | CHECK_STRING (registry); | |
1731 | len = SBYTES (registry); | |
1732 | p0 = (char *) SDATA (registry); | |
1733 | p1 = index (p0, '-'); | |
1734 | if (! p1) | |
c2f5bfd6 | 1735 | { |
35027d0c KH |
1736 | if (SDATA (registry)[len - 1] == '*') |
1737 | registry = concat2 (registry, build_string ("-*")); | |
1738 | else | |
1739 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1740 | } |
35027d0c KH |
1741 | registry = Fdowncase (registry); |
1742 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1743 | } |
1744 | } | |
1745 | ||
45eb10fb | 1746 | \f |
35027d0c KH |
1747 | /* This part (through the next ^L) is still experimental and not |
1748 | tested much. We may drastically change codes. */ | |
10d16101 | 1749 | |
45eb10fb | 1750 | /* OTF handler */ |
10d16101 | 1751 | |
6a3dadd2 KH |
1752 | #if 0 |
1753 | ||
e950d6f1 KH |
1754 | #define LGSTRING_HEADER_SIZE 6 |
1755 | #define LGSTRING_GLYPH_SIZE 8 | |
1756 | ||
1757 | static int | |
1758 | check_gstring (gstring) | |
1759 | Lisp_Object gstring; | |
1760 | { | |
1761 | Lisp_Object val; | |
1762 | int i, j; | |
1763 | ||
1764 | CHECK_VECTOR (gstring); | |
1765 | val = AREF (gstring, 0); | |
1766 | CHECK_VECTOR (val); | |
1767 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1768 | goto err; | |
1769 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1770 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1771 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1772 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1773 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1774 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1775 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1776 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1777 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1778 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1779 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 KH |
1780 | |
1781 | for (i = 0; i < LGSTRING_LENGTH (gstring); i++) | |
1782 | { | |
1783 | val = LGSTRING_GLYPH (gstring, i); | |
1784 | CHECK_VECTOR (val); | |
1785 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1786 | goto err; | |
f9ffa1ea | 1787 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1788 | break; |
f9ffa1ea SM |
1789 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1790 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1791 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1792 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1793 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1794 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1795 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1796 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1797 | { |
f9ffa1ea | 1798 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1799 | CHECK_VECTOR (val); |
1800 | if (ASIZE (val) < 3) | |
1801 | goto err; | |
1802 | for (j = 0; j < 3; j++) | |
1803 | CHECK_NUMBER (AREF (val, j)); | |
1804 | } | |
1805 | } | |
1806 | return i; | |
1807 | err: | |
1808 | error ("Invalid glyph-string format"); | |
1809 | return -1; | |
1810 | } | |
1811 | ||
cf385d93 KH |
1812 | static void |
1813 | check_otf_features (otf_features) | |
1814 | Lisp_Object otf_features; | |
1815 | { | |
35027d0c | 1816 | Lisp_Object val; |
cf385d93 KH |
1817 | |
1818 | CHECK_CONS (otf_features); | |
1819 | CHECK_SYMBOL (XCAR (otf_features)); | |
1820 | otf_features = XCDR (otf_features); | |
1821 | CHECK_CONS (otf_features); | |
1822 | CHECK_SYMBOL (XCAR (otf_features)); | |
1823 | otf_features = XCDR (otf_features); | |
1824 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1825 | { | |
1826 | CHECK_SYMBOL (Fcar (val)); | |
1827 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1828 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1829 | } | |
1830 | otf_features = XCDR (otf_features); | |
1831 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1832 | { | |
1833 | CHECK_SYMBOL (Fcar (val)); | |
1834 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1835 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1836 | } | |
1837 | } | |
1838 | ||
c2f5bfd6 KH |
1839 | #ifdef HAVE_LIBOTF |
1840 | #include <otf.h> | |
1841 | ||
733fd013 | 1842 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1843 | |
1844 | static Lisp_Object | |
1845 | otf_tag_symbol (tag) | |
1846 | OTF_Tag tag; | |
1847 | { | |
1848 | char name[5]; | |
1849 | ||
1850 | OTF_tag_name (tag, name); | |
1851 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1852 | } | |
1853 | ||
1854 | static OTF * | |
35027d0c KH |
1855 | otf_open (file) |
1856 | Lisp_Object file; | |
c2f5bfd6 | 1857 | { |
35027d0c | 1858 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1859 | OTF *otf; |
1860 | ||
1861 | if (! NILP (val)) | |
1862 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1863 | else | |
c2f5bfd6 | 1864 | { |
35027d0c | 1865 | otf = STRINGP (file) ? OTF_open ((char *) SDATA (file)) : NULL; |
733fd013 | 1866 | val = make_save_value (otf, 0); |
35027d0c | 1867 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1868 | } |
733fd013 | 1869 | return otf; |
c2f5bfd6 KH |
1870 | } |
1871 | ||
1872 | ||
1873 | /* Return a list describing which scripts/languages FONT supports by | |
1874 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1875 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1876 | |
1877 | Lisp_Object | |
1878 | font_otf_capability (font) | |
1879 | struct font *font; | |
1880 | { | |
1881 | OTF *otf; | |
1882 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1883 | int i; | |
1884 | ||
35027d0c | 1885 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1886 | if (! otf) |
1887 | return Qnil; | |
1888 | for (i = 0; i < 2; i++) | |
1889 | { | |
1890 | OTF_GSUB_GPOS *gsub_gpos; | |
1891 | Lisp_Object script_list = Qnil; | |
1892 | int j; | |
1893 | ||
1894 | if (OTF_get_features (otf, i == 0) < 0) | |
1895 | continue; | |
1896 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1897 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1898 | { | |
1899 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1900 | Lisp_Object langsys_list = Qnil; | |
1901 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1902 | int k; | |
1903 | ||
1904 | for (k = script->LangSysCount; k >= 0; k--) | |
1905 | { | |
1906 | OTF_LangSys *langsys; | |
1907 | Lisp_Object feature_list = Qnil; | |
1908 | Lisp_Object langsys_tag; | |
1909 | int l; | |
1910 | ||
e80e09b4 | 1911 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1912 | { |
1913 | langsys = &script->DefaultLangSys; | |
1914 | langsys_tag = Qnil; | |
1915 | } | |
1916 | else | |
1917 | { | |
1918 | langsys = script->LangSys + k; | |
1919 | langsys_tag | |
1920 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1921 | } | |
e80e09b4 | 1922 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1923 | { |
1924 | OTF_Feature *feature | |
1925 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1926 | Lisp_Object feature_tag | |
1927 | = otf_tag_symbol (feature->FeatureTag); | |
1928 | ||
1929 | feature_list = Fcons (feature_tag, feature_list); | |
1930 | } | |
1931 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1932 | langsys_list); | |
1933 | } | |
1934 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1935 | script_list); | |
1936 | } | |
1937 | ||
1938 | if (i == 0) | |
1939 | XSETCAR (capability, script_list); | |
1940 | else | |
1941 | XSETCDR (capability, script_list); | |
1942 | } | |
1943 | ||
1944 | return capability; | |
1945 | } | |
1946 | ||
733fd013 KH |
1947 | /* Parse OTF features in SPEC and write a proper features spec string |
1948 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1949 | assured that the sufficient memory has already allocated for | |
1950 | FEATURES. */ | |
1951 | ||
e80e09b4 | 1952 | static void |
733fd013 | 1953 | generate_otf_features (spec, features) |
c2f5bfd6 | 1954 | Lisp_Object spec; |
733fd013 | 1955 | char *features; |
c2f5bfd6 KH |
1956 | { |
1957 | Lisp_Object val; | |
35027d0c | 1958 | char *p; |
c2f5bfd6 KH |
1959 | int asterisk; |
1960 | ||
733fd013 | 1961 | p = features; |
e80e09b4 | 1962 | *p = '\0'; |
c2f5bfd6 KH |
1963 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1964 | { | |
1965 | val = XCAR (spec); | |
e80e09b4 KH |
1966 | CHECK_SYMBOL (val); |
1967 | if (p > features) | |
733fd013 | 1968 | *p++ = ','; |
c2f5bfd6 KH |
1969 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1970 | { | |
1971 | asterisk = 1; | |
e80e09b4 | 1972 | *p++ = '*'; |
c2f5bfd6 KH |
1973 | } |
1974 | else if (! asterisk) | |
e80e09b4 KH |
1975 | { |
1976 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1977 | p += sprintf (p, "%s", SDATA (val)); |
1978 | } | |
c2f5bfd6 | 1979 | else |
e80e09b4 KH |
1980 | { |
1981 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1982 | p += sprintf (p, "~%s", SDATA (val)); |
1983 | } | |
c2f5bfd6 | 1984 | } |
e80e09b4 KH |
1985 | if (CONSP (spec)) |
1986 | error ("OTF spec too long"); | |
1987 | } | |
1988 | ||
733fd013 KH |
1989 | Lisp_Object |
1990 | font_otf_DeviceTable (device_table) | |
1991 | OTF_DeviceTable *device_table; | |
1992 | { | |
1993 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1994 | ||
1995 | return Fcons (make_number (len), | |
1996 | make_unibyte_string (device_table->DeltaValue, len)); | |
1997 | } | |
1998 | ||
1999 | Lisp_Object | |
2000 | font_otf_ValueRecord (value_format, value_record) | |
2001 | int value_format; | |
2002 | OTF_ValueRecord *value_record; | |
2003 | { | |
2004 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
2005 | ||
2006 | if (value_format & OTF_XPlacement) | |
43c0454d | 2007 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 2008 | if (value_format & OTF_YPlacement) |
43c0454d | 2009 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 2010 | if (value_format & OTF_XAdvance) |
43c0454d | 2011 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 2012 | if (value_format & OTF_YAdvance) |
43c0454d | 2013 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
2014 | if (value_format & OTF_XPlaDevice) |
2015 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
2016 | if (value_format & OTF_YPlaDevice) | |
2017 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
2018 | if (value_format & OTF_XAdvDevice) | |
2019 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
2020 | if (value_format & OTF_YAdvDevice) | |
2021 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
2022 | return val; | |
2023 | } | |
2024 | ||
2025 | Lisp_Object | |
2026 | font_otf_Anchor (anchor) | |
2027 | OTF_Anchor *anchor; | |
2028 | { | |
2029 | Lisp_Object val; | |
2030 | ||
2031 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2032 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2033 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2034 | if (anchor->AnchorFormat == 2) | |
2035 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2036 | else | |
2037 | { | |
2038 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2039 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2040 | } | |
2041 | return val; | |
2042 | } | |
c2f5bfd6 | 2043 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2044 | #endif /* 0 */ |
c2f5bfd6 | 2045 | |
e80e09b4 KH |
2046 | /* G-string (glyph string) handler */ |
2047 | ||
2048 | /* G-string is a vector of the form [HEADER GLYPH ...]. | |
2049 | See the docstring of `font-make-gstring' for more detail. */ | |
c2f5bfd6 KH |
2050 | |
2051 | struct font * | |
1701724c | 2052 | font_prepare_composition (cmp, f) |
c2f5bfd6 | 2053 | struct composition *cmp; |
1701724c | 2054 | FRAME_PTR f; |
c2f5bfd6 KH |
2055 | { |
2056 | Lisp_Object gstring | |
2057 | = AREF (XHASH_TABLE (composition_hash_table)->key_and_value, | |
2058 | cmp->hash_index * 2); | |
c2f5bfd6 | 2059 | |
35027d0c | 2060 | cmp->font = XFONT_OBJECT (LGSTRING_FONT (gstring)); |
1701724c KH |
2061 | cmp->glyph_len = LGSTRING_LENGTH (gstring); |
2062 | cmp->pixel_width = LGSTRING_WIDTH (gstring); | |
2063 | cmp->lbearing = LGSTRING_LBEARING (gstring); | |
2064 | cmp->rbearing = LGSTRING_RBEARING (gstring); | |
2065 | cmp->ascent = LGSTRING_ASCENT (gstring); | |
2066 | cmp->descent = LGSTRING_DESCENT (gstring); | |
2067 | cmp->width = cmp->pixel_width / FRAME_COLUMN_WIDTH (f); | |
2068 | if (cmp->width == 0) | |
2069 | cmp->width = 1; | |
c2f5bfd6 | 2070 | |
1701724c | 2071 | return cmp->font; |
c2f5bfd6 KH |
2072 | } |
2073 | ||
c2f5bfd6 KH |
2074 | \f |
2075 | /* Font sorting */ | |
2076 | ||
4007dd1c | 2077 | static unsigned font_score P_ ((Lisp_Object, Lisp_Object *)); |
c2f5bfd6 KH |
2078 | static int font_compare P_ ((const void *, const void *)); |
2079 | static Lisp_Object font_sort_entites P_ ((Lisp_Object, Lisp_Object, | |
35027d0c KH |
2080 | Lisp_Object, Lisp_Object, |
2081 | int)); | |
c2f5bfd6 KH |
2082 | |
2083 | /* We sort fonts by scoring each of them against a specified | |
2084 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2085 | the value is, the closer the font is to the font-spec. | |
2086 | ||
4007dd1c KH |
2087 | The lowest 2 bits of the score is used for driver type. The font |
2088 | available by the most preferred font driver is 0. | |
35027d0c | 2089 | |
4007dd1c | 2090 | Each 7-bit in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2091 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2092 | ||
2093 | /* How many bits to shift to store the difference value of each font | |
35027d0c KH |
2094 | property in a score. Note that flots for FONT_TYPE_INDEX and |
2095 | FONT_REGISTRY_INDEX are not used. */ | |
c2f5bfd6 KH |
2096 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2097 | ||
9331887d KH |
2098 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2099 | The return value indicates how different ENTITY is compared with | |
35027d0c KH |
2100 | SPEC_PROP. |
2101 | ||
2102 | ALTERNATE_FAMILIES, if non-nil, is a pre-calculated list of | |
2103 | alternate family names for AREF (SPEC_PROP, FONT_FAMILY_INDEX). */ | |
c2f5bfd6 KH |
2104 | |
2105 | static unsigned | |
4007dd1c | 2106 | font_score (entity, spec_prop) |
9331887d | 2107 | Lisp_Object entity, *spec_prop; |
c2f5bfd6 KH |
2108 | { |
2109 | unsigned score = 0; | |
2110 | int i; | |
c2f5bfd6 | 2111 | |
35027d0c KH |
2112 | /* Score three style numeric fields. Maximum difference is 127. */ |
2113 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2114 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2115 | { | |
2116 | int diff = (XINT (AREF (entity, i)) >> 8) - (XINT (spec_prop[i]) >> 8); | |
2117 | ||
2118 | if (diff < 0) | |
2119 | diff = - diff; | |
f4cc0153 KH |
2120 | if (diff > 0) |
2121 | score |= min (diff, 127) << sort_shift_bits[i]; | |
35027d0c KH |
2122 | } |
2123 | ||
2124 | /* Score the size. Maximum difference is 127. */ | |
2125 | i = FONT_SIZE_INDEX; | |
2126 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i]) | |
2127 | && XINT (AREF (entity, i)) > 0) | |
2128 | { | |
2129 | /* We use the higher 6-bit for the actual size difference. The | |
2130 | lowest bit is set if the DPI is different. */ | |
2131 | int diff = XINT (spec_prop[i]) - XINT (AREF (entity, i)); | |
2132 | ||
2133 | if (diff < 0) | |
2134 | diff = - diff; | |
d0ab1ebe | 2135 | diff <<= 1; |
35027d0c KH |
2136 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2137 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2138 | diff |= 1; | |
2139 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; | |
c2f5bfd6 KH |
2140 | } |
2141 | ||
2142 | return score; | |
2143 | } | |
2144 | ||
2145 | ||
2146 | /* The comparison function for qsort. */ | |
2147 | ||
2148 | static int | |
2149 | font_compare (d1, d2) | |
2150 | const void *d1, *d2; | |
2151 | { | |
35027d0c | 2152 | return (*(unsigned *) d1 - *(unsigned *) d2); |
c2f5bfd6 KH |
2153 | } |
2154 | ||
2155 | ||
2156 | /* The structure for elements being sorted by qsort. */ | |
2157 | struct font_sort_data | |
2158 | { | |
2159 | unsigned score; | |
2160 | Lisp_Object entity; | |
2161 | }; | |
2162 | ||
2163 | ||
2164 | /* Sort font-entities in vector VEC by closeness to font-spec PREFER. | |
2165 | If PREFER specifies a point-size, calculate the corresponding | |
9331887d KH |
2166 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
2167 | of FRAME before sorting. If SPEC is not nil, it is a font-spec to | |
35027d0c KH |
2168 | get the font-entities in VEC. |
2169 | ||
2170 | If BEST-ONLY is nonzero, return the best matching entity. Otherwise, | |
2171 | return the sorted VEC. */ | |
c2f5bfd6 KH |
2172 | |
2173 | static Lisp_Object | |
35027d0c | 2174 | font_sort_entites (vec, prefer, frame, spec, best_only) |
c2f5bfd6 | 2175 | Lisp_Object vec, prefer, frame, spec; |
35027d0c | 2176 | int best_only; |
c2f5bfd6 | 2177 | { |
9331887d | 2178 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
c2f5bfd6 KH |
2179 | int len, i; |
2180 | struct font_sort_data *data; | |
35027d0c | 2181 | unsigned best_score; |
4007dd1c KH |
2182 | Lisp_Object best_entity, driver_type; |
2183 | int driver_order; | |
2184 | struct frame *f = XFRAME (frame); | |
2185 | struct font_driver_list *list; | |
c2f5bfd6 KH |
2186 | USE_SAFE_ALLOCA; |
2187 | ||
2188 | len = ASIZE (vec); | |
2189 | if (len <= 1) | |
35027d0c | 2190 | return best_only ? AREF (vec, 0) : vec; |
c2f5bfd6 | 2191 | |
4007dd1c | 2192 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) |
9331887d | 2193 | prefer_prop[i] = AREF (prefer, i); |
c2f5bfd6 KH |
2194 | |
2195 | if (! NILP (spec)) | |
2196 | { | |
35027d0c KH |
2197 | /* A font driver may return a font that has a property value |
2198 | different from the value specified in SPEC if the driver | |
2199 | thinks they are the same. That happens, for instance, such a | |
2200 | generic family name as "serif" is specified. So, to ignore | |
2201 | such a difference, for all properties specified in SPEC, set | |
2202 | the corresponding properties in PREFER_PROP to nil. */ | |
4007dd1c | 2203 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) |
9331887d | 2204 | if (! NILP (AREF (spec, i))) |
35027d0c | 2205 | prefer_prop[i] = Qnil; |
c2f5bfd6 KH |
2206 | } |
2207 | ||
9331887d KH |
2208 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2209 | prefer_prop[FONT_SIZE_INDEX] | |
2210 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2211 | ||
c2f5bfd6 KH |
2212 | /* Scoring and sorting. */ |
2213 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * len); | |
35027d0c | 2214 | best_score = 0xFFFFFFFF; |
4007dd1c KH |
2215 | /* We are sure that the length of VEC > 1. */ |
2216 | driver_type = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2217 | for (driver_order = 0, list = f->font_driver_list; list; | |
2218 | driver_order++, list = list->next) | |
2219 | if (EQ (driver_type, list->driver->type)) | |
2220 | break; | |
2221 | best_entity = data[0].entity = AREF (vec, 0); | |
2222 | best_score = data[0].score | |
2223 | = font_score (data[0].entity, prefer_prop) | driver_order; | |
c2f5bfd6 KH |
2224 | for (i = 0; i < len; i++) |
2225 | { | |
4007dd1c KH |
2226 | if (!EQ (driver_type, AREF (AREF (vec, i), FONT_TYPE_INDEX))) |
2227 | for (driver_order = 0, list = f->font_driver_list; list; | |
2228 | driver_order++, list = list->next) | |
2229 | if (EQ (driver_type, list->driver->type)) | |
2230 | break; | |
c2f5bfd6 | 2231 | data[i].entity = AREF (vec, i); |
4007dd1c | 2232 | data[i].score = font_score (data[i].entity, prefer_prop) | driver_order; |
35027d0c KH |
2233 | if (best_only && best_score > data[i].score) |
2234 | { | |
2235 | best_score = data[i].score; | |
2236 | best_entity = data[i].entity; | |
2237 | if (best_score == 0) | |
2238 | break; | |
2239 | } | |
c2f5bfd6 | 2240 | } |
35027d0c KH |
2241 | if (NILP (best_entity)) |
2242 | { | |
2243 | qsort (data, len, sizeof *data, font_compare); | |
2244 | for (i = 0; i < len; i++) | |
2245 | ASET (vec, i, data[i].entity); | |
2246 | } | |
2247 | else | |
2248 | vec = best_entity; | |
c2f5bfd6 KH |
2249 | SAFE_FREE (); |
2250 | ||
d0ab1ebe | 2251 | font_add_log ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2252 | return vec; |
2253 | } | |
2254 | ||
2255 | \f | |
2256 | /* API of Font Service Layer. */ | |
2257 | ||
45eb10fb KH |
2258 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2259 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2260 | function with font_sort_order after setting up it. */ | |
2261 | ||
c2f5bfd6 KH |
2262 | void |
2263 | font_update_sort_order (order) | |
2264 | int *order; | |
2265 | { | |
35027d0c | 2266 | int i, shift_bits; |
c2f5bfd6 | 2267 | |
943b7eea | 2268 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2269 | { |
2270 | int xlfd_idx = order[i]; | |
2271 | ||
2272 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2273 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2274 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2275 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2276 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2277 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2278 | else | |
2279 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2280 | } | |
2281 | } | |
2282 | ||
45eb10fb | 2283 | |
45eb10fb KH |
2284 | /* Check if ENTITY matches with the font specification SPEC. */ |
2285 | ||
ef18374f KH |
2286 | int |
2287 | font_match_p (spec, entity) | |
2288 | Lisp_Object spec, entity; | |
2289 | { | |
35027d0c KH |
2290 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
2291 | Lisp_Object alternate_families = Qnil; | |
ef18374f KH |
2292 | int i; |
2293 | ||
35027d0c KH |
2294 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_SIZE_INDEX; i++) |
2295 | prefer_prop[i] = AREF (spec, i); | |
2296 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) | |
2297 | prefer_prop[FONT_SIZE_INDEX] | |
2298 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2299 | if (! NILP (prefer_prop[FONT_FAMILY_INDEX])) | |
2300 | { | |
2301 | alternate_families | |
2302 | = Fassoc_string (prefer_prop[FONT_FAMILY_INDEX], | |
2303 | Vface_alternative_font_family_alist, Qt); | |
2304 | if (CONSP (alternate_families)) | |
2305 | alternate_families = XCDR (alternate_families); | |
2306 | } | |
2307 | ||
4007dd1c | 2308 | return (font_score (entity, prefer_prop) == 0); |
ef18374f KH |
2309 | } |
2310 | ||
45eb10fb | 2311 | |
35027d0c | 2312 | /* CHeck a lispy font object corresponding to FONT. */ |
45eb10fb | 2313 | |
35027d0c KH |
2314 | int |
2315 | font_check_object (font) | |
c2f5bfd6 KH |
2316 | struct font *font; |
2317 | { | |
2318 | Lisp_Object tail, elt; | |
2319 | ||
35027d0c | 2320 | for (tail = font->props[FONT_OBJLIST_INDEX]; CONSP (tail); |
c2f5bfd6 KH |
2321 | tail = XCDR (tail)) |
2322 | { | |
2323 | elt = XCAR (tail); | |
35027d0c KH |
2324 | if (font == XFONT_OBJECT (elt)) |
2325 | return 1; | |
c2f5bfd6 | 2326 | } |
35027d0c | 2327 | return 0; |
c2f5bfd6 KH |
2328 | } |
2329 | ||
ca4da08a | 2330 | \f |
819e81df | 2331 | |
ca4da08a KH |
2332 | /* Font cache |
2333 | ||
2334 | Each font backend has the callback function get_cache, and it | |
2335 | returns a cons cell of which cdr part can be freely used for | |
2336 | caching fonts. The cons cell may be shared by multiple frames | |
2337 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2338 | ||
2339 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2340 | ||
2341 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2342 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2343 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2344 | ||
2345 | static void font_prepare_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2346 | static void font_finish_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2347 | static Lisp_Object font_get_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2348 | static void font_clear_cache P_ ((FRAME_PTR, Lisp_Object, | |
2349 | struct font_driver *)); | |
2350 | ||
2351 | static void | |
2352 | font_prepare_cache (f, driver) | |
2353 | FRAME_PTR f; | |
2354 | struct font_driver *driver; | |
2355 | { | |
2356 | Lisp_Object cache, val; | |
2357 | ||
2358 | cache = driver->get_cache (f); | |
2359 | val = XCDR (cache); | |
2360 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2361 | val = XCDR (val); | |
2362 | if (NILP (val)) | |
2363 | { | |
2364 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2365 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2366 | } | |
2367 | else | |
2368 | { | |
2369 | val = XCDR (XCAR (val)); | |
2370 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2371 | } | |
2372 | } | |
2373 | ||
43c0454d | 2374 | |
ca4da08a KH |
2375 | static void |
2376 | font_finish_cache (f, driver) | |
2377 | FRAME_PTR f; | |
2378 | struct font_driver *driver; | |
2379 | { | |
2380 | Lisp_Object cache, val, tmp; | |
2381 | ||
2382 | ||
2383 | cache = driver->get_cache (f); | |
2384 | val = XCDR (cache); | |
2385 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2386 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2387 | font_assert (! NILP (val)); |
ca4da08a | 2388 | tmp = XCDR (XCAR (val)); |
43c0454d | 2389 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2390 | if (XINT (XCAR (tmp)) == 0) |
2391 | { | |
2392 | font_clear_cache (f, XCAR (val), driver); | |
2393 | XSETCDR (cache, XCDR (val)); | |
2394 | } | |
ca4da08a KH |
2395 | } |
2396 | ||
43c0454d | 2397 | |
ca4da08a KH |
2398 | static Lisp_Object |
2399 | font_get_cache (f, driver) | |
2400 | FRAME_PTR f; | |
2401 | struct font_driver *driver; | |
2402 | { | |
2403 | Lisp_Object val = driver->get_cache (f); | |
2404 | Lisp_Object type = driver->type; | |
2405 | ||
d0ab1ebe | 2406 | font_assert (CONSP (val)); |
ca4da08a | 2407 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2408 | font_assert (CONSP (val)); |
ca4da08a KH |
2409 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2410 | val = XCDR (XCAR (val)); | |
2411 | return val; | |
2412 | } | |
2413 | ||
43c0454d KH |
2414 | static int num_fonts; |
2415 | ||
ca4da08a KH |
2416 | static void |
2417 | font_clear_cache (f, cache, driver) | |
2418 | FRAME_PTR f; | |
2419 | Lisp_Object cache; | |
2420 | struct font_driver *driver; | |
2421 | { | |
2422 | Lisp_Object tail, elt; | |
51c01100 | 2423 | |
ca4da08a KH |
2424 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2425 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2426 | { | |
2427 | elt = XCAR (tail); | |
be9442ad | 2428 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt)) && VECTORP (XCDR (elt))) |
ca4da08a KH |
2429 | { |
2430 | Lisp_Object vec = XCDR (elt); | |
2431 | int i; | |
2432 | ||
2433 | for (i = 0; i < ASIZE (vec); i++) | |
2434 | { | |
2435 | Lisp_Object entity = AREF (vec, i); | |
2436 | ||
2437 | if (EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
2438 | { | |
2439 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2440 | ||
2441 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2442 | { | |
2443 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2444 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2445 | |
d0ab1ebe | 2446 | font_assert (font && driver == font->driver); |
ca4da08a | 2447 | driver->close (f, font); |
43c0454d | 2448 | num_fonts--; |
ca4da08a KH |
2449 | } |
2450 | if (driver->free_entity) | |
2451 | driver->free_entity (entity); | |
2452 | } | |
2453 | } | |
2454 | } | |
2455 | } | |
2456 | XSETCDR (cache, Qnil); | |
2457 | } | |
2458 | \f | |
2459 | ||
c2f5bfd6 KH |
2460 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2461 | ||
35027d0c KH |
2462 | Lisp_Object |
2463 | font_delete_unmatched (list, spec, size) | |
2464 | Lisp_Object list, spec; | |
2465 | int size; | |
2466 | { | |
d0ab1ebe | 2467 | Lisp_Object entity, val; |
35027d0c | 2468 | enum font_property_index prop; |
45eb10fb | 2469 | |
d0ab1ebe | 2470 | for (val = Qnil; CONSP (list); list = XCDR (list)) |
35027d0c | 2471 | { |
d0ab1ebe | 2472 | entity = XCAR (list); |
35027d0c KH |
2473 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2474 | if (INTEGERP (AREF (spec, prop)) | |
2475 | && ((XINT (AREF (spec, prop)) >> 8) | |
2476 | != (XINT (AREF (entity, prop)) >> 8))) | |
2477 | prop = FONT_SPEC_MAX; | |
2478 | if (prop++ <= FONT_SIZE_INDEX | |
2479 | && size | |
2480 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2481 | { | |
2482 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2483 | |
35027d0c KH |
2484 | if (diff != 0 |
2485 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2486 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2487 | prop = FONT_SPEC_MAX; | |
2488 | } | |
35027d0c | 2489 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2490 | val = Fcons (entity, val); |
35027d0c | 2491 | } |
d0ab1ebe | 2492 | return val; |
35027d0c KH |
2493 | } |
2494 | ||
2495 | ||
2496 | /* Return a vector of font-entities matching with SPEC on FRAME. */ | |
2497 | ||
2498 | Lisp_Object | |
c2f5bfd6 KH |
2499 | font_list_entities (frame, spec) |
2500 | Lisp_Object frame, spec; | |
2501 | { | |
2502 | FRAME_PTR f = XFRAME (frame); | |
2503 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2504 | Lisp_Object ftype, val; |
35027d0c KH |
2505 | Lisp_Object *vec; |
2506 | int size; | |
2507 | int need_filtering = 0; | |
c2f5bfd6 KH |
2508 | int i; |
2509 | ||
d0ab1ebe | 2510 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2511 | |
35027d0c KH |
2512 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2513 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2514 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2515 | size = font_pixel_size (f, spec); | |
2516 | else | |
2517 | size = 0; | |
2518 | ||
c2f5bfd6 | 2519 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2520 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2521 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2522 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
35027d0c KH |
2523 | { |
2524 | ASET (scratch_font_spec, i, Qnil); | |
2525 | if (! NILP (AREF (spec, i))) | |
2526 | need_filtering = 1; | |
4007dd1c KH |
2527 | if (i == FONT_DPI_INDEX) |
2528 | /* Skip FONT_SPACING_INDEX */ | |
2529 | i++; | |
35027d0c | 2530 | } |
aa50ca2f | 2531 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2532 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2533 | ||
4007dd1c | 2534 | vec = alloca (sizeof (Lisp_Object) * num_font_drivers); |
35027d0c KH |
2535 | if (! vec) |
2536 | return null_vector; | |
51c01100 | 2537 | |
c2f5bfd6 | 2538 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2539 | if (driver_list->on |
2540 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2541 | { |
ca4da08a | 2542 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2543 | |
e4c93315 | 2544 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2545 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2546 | if (CONSP (val)) | |
2547 | val = XCDR (val); | |
2548 | else | |
c2f5bfd6 | 2549 | { |
4007dd1c | 2550 | Lisp_Object copy; |
35027d0c | 2551 | |
4007dd1c KH |
2552 | val = driver_list->driver->list (frame, scratch_font_spec); |
2553 | copy = Fcopy_font_spec (scratch_font_spec); | |
2554 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); | |
2555 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2556 | } |
4007dd1c KH |
2557 | if (! NILP (val) && need_filtering) |
2558 | val = font_delete_unmatched (val, spec, size); | |
2559 | if (! NILP (val)) | |
2560 | vec[i++] = val; | |
c2f5bfd6 | 2561 | } |
35027d0c | 2562 | |
d0ab1ebe KH |
2563 | val = (i > 0 ? Fvconcat (i, vec) : null_vector); |
2564 | font_add_log ("list", spec, val); | |
2565 | return (val); | |
c2f5bfd6 KH |
2566 | } |
2567 | ||
45eb10fb | 2568 | |
35027d0c KH |
2569 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2570 | nil, is an array of face's attributes, which specifies preferred | |
2571 | font-related attributes. */ | |
45eb10fb | 2572 | |
e950d6f1 | 2573 | static Lisp_Object |
35027d0c KH |
2574 | font_matching_entity (f, attrs, spec) |
2575 | FRAME_PTR f; | |
2576 | Lisp_Object *attrs, spec; | |
e950d6f1 | 2577 | { |
e950d6f1 KH |
2578 | struct font_driver_list *driver_list = f->font_driver_list; |
2579 | Lisp_Object ftype, size, entity; | |
35027d0c | 2580 | Lisp_Object frame; |
e950d6f1 | 2581 | |
35027d0c | 2582 | XSETFRAME (frame, f); |
e950d6f1 KH |
2583 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2584 | size = AREF (spec, FONT_SIZE_INDEX); | |
2585 | if (FLOATP (size)) | |
2586 | ASET (spec, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
2587 | entity = Qnil; | |
2588 | for (; driver_list; driver_list = driver_list->next) | |
2589 | if (driver_list->on | |
2590 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2591 | { | |
ca4da08a | 2592 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2593 | Lisp_Object copy; |
e950d6f1 | 2594 | |
e950d6f1 | 2595 | ASET (spec, FONT_TYPE_INDEX, driver_list->driver->type); |
35027d0c | 2596 | entity = assoc_no_quit (spec, XCDR (cache)); |
7cee5d63 | 2597 | if (CONSP (entity)) |
e950d6f1 KH |
2598 | entity = XCDR (entity); |
2599 | else | |
2600 | { | |
2601 | entity = driver_list->driver->match (frame, spec); | |
7cee5d63 KH |
2602 | copy = Fcopy_font_spec (spec); |
2603 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); | |
2604 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2605 | } |
2606 | if (! NILP (entity)) | |
2607 | break; | |
2608 | } | |
2609 | ASET (spec, FONT_TYPE_INDEX, ftype); | |
2610 | ASET (spec, FONT_SIZE_INDEX, size); | |
d0ab1ebe | 2611 | font_add_log ("match", spec, entity); |
e950d6f1 KH |
2612 | return entity; |
2613 | } | |
2614 | ||
45eb10fb KH |
2615 | |
2616 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2617 | opened font object. */ | |
2618 | ||
c2f5bfd6 KH |
2619 | static Lisp_Object |
2620 | font_open_entity (f, entity, pixel_size) | |
2621 | FRAME_PTR f; | |
2622 | Lisp_Object entity; | |
2623 | int pixel_size; | |
2624 | { | |
2625 | struct font_driver_list *driver_list; | |
43c0454d | 2626 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2627 | struct font *font; |
35027d0c | 2628 | int min_width; |
c2f5bfd6 | 2629 | |
d0ab1ebe | 2630 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2631 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 KH |
2632 | if (XINT (size) != 0) |
2633 | pixel_size = XINT (size); | |
2634 | ||
2635 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); | |
2636 | objlist = XCDR (objlist)) | |
35027d0c KH |
2637 | if (XFONT_OBJECT (XCAR (objlist))->pixel_size == pixel_size) |
2638 | return XCAR (objlist); | |
2639 | ||
2640 | val = AREF (entity, FONT_TYPE_INDEX); | |
2641 | for (driver_list = f->font_driver_list; | |
2642 | driver_list && ! EQ (driver_list->driver->type, val); | |
2643 | driver_list = driver_list->next); | |
2644 | if (! driver_list) | |
2645 | return Qnil; | |
c2f5bfd6 | 2646 | |
35027d0c | 2647 | font_object = driver_list->driver->open (f, entity, pixel_size); |
d0ab1ebe | 2648 | font_add_log ("open", entity, font_object); |
43c0454d | 2649 | if (NILP (font_object)) |
35027d0c KH |
2650 | return Qnil; |
2651 | ASET (entity, FONT_OBJLIST_INDEX, | |
2652 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
2653 | ASET (font_object, FONT_OBJLIST_INDEX, AREF (entity, FONT_OBJLIST_INDEX)); | |
2654 | num_fonts++; | |
2655 | ||
2656 | font = XFONT_OBJECT (font_object); | |
2657 | min_width = (font->min_width ? font->min_width | |
2658 | : font->average_width ? font->average_width | |
2659 | : font->space_width ? font->space_width | |
2660 | : 1); | |
819e81df | 2661 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2662 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2663 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2664 | { |
35027d0c KH |
2665 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
2666 | FRAME_SMALLEST_FONT_HEIGHT (f) = font->height; | |
2667 | fonts_changed_p = 1; | |
2668 | } | |
2669 | else | |
2670 | { | |
2671 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2672 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
2673 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > font->height) | |
2674 | FRAME_SMALLEST_FONT_HEIGHT (f) = font->height, fonts_changed_p = 1; | |
43c0454d | 2675 | } |
819e81df | 2676 | #endif |
43c0454d KH |
2677 | |
2678 | return font_object; | |
c2f5bfd6 KH |
2679 | } |
2680 | ||
45eb10fb KH |
2681 | |
2682 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2683 | ||
c2f5bfd6 KH |
2684 | void |
2685 | font_close_object (f, font_object) | |
2686 | FRAME_PTR f; | |
2687 | Lisp_Object font_object; | |
2688 | { | |
35027d0c | 2689 | struct font *font = XFONT_OBJECT (font_object); |
10d16101 | 2690 | Lisp_Object objlist; |
c2f5bfd6 KH |
2691 | Lisp_Object tail, prev = Qnil; |
2692 | ||
35027d0c | 2693 | objlist = AREF (font_object, FONT_OBJLIST_INDEX); |
c2f5bfd6 KH |
2694 | for (prev = Qnil, tail = objlist; CONSP (tail); |
2695 | prev = tail, tail = XCDR (tail)) | |
2696 | if (EQ (font_object, XCAR (tail))) | |
2697 | { | |
d0ab1ebe | 2698 | font_add_log ("close", font_object, Qnil); |
35027d0c | 2699 | font->driver->close (f, font); |
819e81df | 2700 | #ifdef HAVE_WINDOW_SYSTEM |
d0ab1ebe | 2701 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
35027d0c | 2702 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; |
819e81df | 2703 | #endif |
10d16101 | 2704 | if (NILP (prev)) |
35027d0c | 2705 | ASET (font_object, FONT_OBJLIST_INDEX, XCDR (objlist)); |
10d16101 KH |
2706 | else |
2707 | XSETCDR (prev, XCDR (objlist)); | |
43c0454d | 2708 | num_fonts--; |
10d16101 | 2709 | return; |
c2f5bfd6 | 2710 | } |
10d16101 | 2711 | abort (); |
c2f5bfd6 KH |
2712 | } |
2713 | ||
45eb10fb | 2714 | |
1701724c KH |
2715 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2716 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2717 | |
c2f5bfd6 | 2718 | int |
1b834a8d | 2719 | font_has_char (f, font, c) |
c2f5bfd6 | 2720 | FRAME_PTR f; |
1b834a8d | 2721 | Lisp_Object font; |
c2f5bfd6 KH |
2722 | int c; |
2723 | { | |
1b834a8d | 2724 | struct font *fontp; |
c2f5bfd6 | 2725 | |
1b834a8d KH |
2726 | if (FONT_ENTITY_P (font)) |
2727 | { | |
2728 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2729 | struct font_driver_list *driver_list; | |
2730 | ||
2731 | for (driver_list = f->font_driver_list; | |
2732 | driver_list && ! EQ (driver_list->driver->type, type); | |
2733 | driver_list = driver_list->next); | |
2734 | if (! driver_list) | |
2735 | return 0; | |
2736 | if (! driver_list->driver->has_char) | |
2737 | return -1; | |
2738 | return driver_list->driver->has_char (font, c); | |
2739 | } | |
2740 | ||
d0ab1ebe | 2741 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 2742 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2743 | if (fontp->driver->has_char) |
2744 | { | |
35027d0c | 2745 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2746 | |
2747 | if (result >= 0) | |
2748 | return result; | |
2749 | } | |
2750 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2751 | } |
2752 | ||
45eb10fb KH |
2753 | |
2754 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2755 | ||
c2f5bfd6 KH |
2756 | unsigned |
2757 | font_encode_char (font_object, c) | |
2758 | Lisp_Object font_object; | |
2759 | int c; | |
2760 | { | |
35027d0c | 2761 | struct font *font; |
c2f5bfd6 | 2762 | |
d0ab1ebe | 2763 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2764 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2765 | return font->driver->encode_char (font, c); |
2766 | } | |
2767 | ||
45eb10fb KH |
2768 | |
2769 | /* Return the name of FONT_OBJECT. */ | |
2770 | ||
ef18374f | 2771 | Lisp_Object |
c2f5bfd6 KH |
2772 | font_get_name (font_object) |
2773 | Lisp_Object font_object; | |
2774 | { | |
d0ab1ebe | 2775 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2776 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2777 | } |
2778 | ||
45eb10fb KH |
2779 | |
2780 | /* Return the specification of FONT_OBJECT. */ | |
2781 | ||
ef18374f KH |
2782 | Lisp_Object |
2783 | font_get_spec (font_object) | |
2784 | Lisp_Object font_object; | |
2785 | { | |
35027d0c | 2786 | Lisp_Object spec = font_make_spec (); |
ef18374f KH |
2787 | int i; |
2788 | ||
2789 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
35027d0c KH |
2790 | ASET (spec, i, AREF (font_object, i)); |
2791 | ASET (spec, FONT_SIZE_INDEX, | |
2792 | make_number (XFONT_OBJECT (font_object)->pixel_size)); | |
ef18374f | 2793 | return spec; |
c2f5bfd6 KH |
2794 | } |
2795 | ||
35027d0c KH |
2796 | Lisp_Object |
2797 | font_spec_from_name (font_name) | |
2798 | Lisp_Object font_name; | |
2799 | { | |
2800 | Lisp_Object args[2]; | |
2801 | ||
2802 | args[0] = QCname; | |
2803 | args[1] = font_name; | |
2804 | return Ffont_spec (2, args); | |
2805 | } | |
2806 | ||
45eb10fb | 2807 | |
35027d0c KH |
2808 | void |
2809 | font_clear_prop (attrs, prop) | |
2810 | Lisp_Object *attrs; | |
2811 | enum font_property_index prop; | |
2812 | { | |
2813 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 2814 | |
35027d0c KH |
2815 | if (! FONTP (font)) |
2816 | return; | |
2817 | if (NILP (AREF (font, prop)) | |
4007dd1c KH |
2818 | && prop != FONT_FAMILY_INDEX && prop != FONT_FOUNDRY_INDEX |
2819 | && prop != FONT_SIZE_INDEX) | |
35027d0c KH |
2820 | return; |
2821 | font = Fcopy_font_spec (font); | |
2822 | ASET (font, prop, Qnil); | |
4007dd1c | 2823 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 2824 | { |
4007dd1c KH |
2825 | if (prop == FONT_FAMILY_INDEX) |
2826 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
35027d0c | 2827 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 2828 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
2829 | ASET (font, FONT_SIZE_INDEX, Qnil); |
2830 | ASET (font, FONT_DPI_INDEX, Qnil); | |
2831 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
2832 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
2833 | } | |
2834 | else if (prop == FONT_SIZE_INDEX) | |
2835 | { | |
2836 | ASET (font, FONT_DPI_INDEX, Qnil); | |
2837 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
2838 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
2839 | } | |
2840 | attrs[LFACE_FONT_INDEX] = font; | |
2841 | } | |
2842 | ||
2843 | void | |
2844 | font_update_lface (f, attrs) | |
2845 | FRAME_PTR f; | |
2846 | Lisp_Object *attrs; | |
c2f5bfd6 | 2847 | { |
d0ab1ebe | 2848 | Lisp_Object spec; |
35027d0c KH |
2849 | |
2850 | spec = attrs[LFACE_FONT_INDEX]; | |
2851 | if (! FONT_SPEC_P (spec)) | |
2852 | return; | |
2853 | ||
4007dd1c KH |
2854 | if (! NILP (AREF (spec, FONT_FOUNDRY_INDEX))) |
2855 | attrs[LFACE_FOUNDRY_INDEX] = SYMBOL_NAME (AREF (spec, FONT_FOUNDRY_INDEX)); | |
2856 | if (! NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
2857 | attrs[LFACE_FAMILY_INDEX] = SYMBOL_NAME (AREF (spec, FONT_FAMILY_INDEX)); | |
35027d0c KH |
2858 | if (! NILP (AREF (spec, FONT_WEIGHT_INDEX))) |
2859 | attrs[LFACE_WEIGHT_INDEX] = FONT_WEIGHT_FOR_FACE (spec); | |
2860 | if (! NILP (AREF (spec, FONT_SLANT_INDEX))) | |
2861 | attrs[LFACE_SLANT_INDEX] = FONT_SLANT_FOR_FACE (spec);; | |
2862 | if (! NILP (AREF (spec, FONT_WIDTH_INDEX))) | |
2863 | attrs[LFACE_SWIDTH_INDEX] = FONT_WIDTH_FOR_FACE (spec); | |
2864 | if (! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
2865 | { | |
2866 | int point; | |
2867 | ||
2868 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) | |
2869 | { | |
2870 | Lisp_Object val; | |
2871 | int dpi = f->resy; | |
2872 | ||
2873 | val = Ffont_get (spec, QCdpi); | |
2874 | if (! NILP (val)) | |
2875 | dpi = XINT (val); | |
2876 | point = PIXEL_TO_POINT (XINT (AREF (spec, FONT_SIZE_INDEX)) * 10, | |
2877 | dpi); | |
2878 | } | |
2879 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2880 | point = XFLOAT_DATA (AREF (spec, FONT_SIZE_INDEX)) * 10; | |
2881 | attrs[LFACE_HEIGHT_INDEX] = make_number (point); | |
2882 | } | |
c2f5bfd6 KH |
2883 | } |
2884 | ||
45eb10fb | 2885 | |
35027d0c KH |
2886 | /* Return a font-entity satisfying SPEC and best matching with face's |
2887 | font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 2888 | character that the entity must support. */ |
c2f5bfd6 KH |
2889 | |
2890 | Lisp_Object | |
35027d0c | 2891 | font_find_for_lface (f, attrs, spec, c) |
c2f5bfd6 | 2892 | FRAME_PTR f; |
35027d0c | 2893 | Lisp_Object *attrs; |
c2f5bfd6 | 2894 | Lisp_Object spec; |
1701724c | 2895 | int c; |
c2f5bfd6 | 2896 | { |
4007dd1c | 2897 | Lisp_Object work; |
35027d0c | 2898 | Lisp_Object frame, entities, val, props[FONT_REGISTRY_INDEX + 1] ; |
d0a47776 | 2899 | Lisp_Object size, foundry[3], *family, registry[3]; |
1d1e1245 | 2900 | int pixel_size; |
d0a47776 KH |
2901 | int i, j, k, result; |
2902 | ||
2903 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
2904 | if (NILP (registry[0])) | |
2905 | { | |
2906 | registry[0] = Qiso8859_1; | |
2907 | registry[1] = Qascii_0; | |
2908 | registry[2] = null_vector; | |
2909 | } | |
2910 | else | |
2911 | registry[1] = null_vector; | |
c2f5bfd6 | 2912 | |
4007dd1c | 2913 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 2914 | { |
35027d0c | 2915 | struct charset *encoding, *repertory; |
1701724c | 2916 | |
4007dd1c KH |
2917 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
2918 | &encoding, &repertory) < 0) | |
35027d0c KH |
2919 | return Qnil; |
2920 | if (repertory) | |
1701724c | 2921 | { |
35027d0c | 2922 | if (ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) |
1701724c | 2923 | return Qnil; |
35027d0c KH |
2924 | /* Any font of this registry support C. So, let's |
2925 | suppress the further checking. */ | |
2926 | c = -1; | |
1701724c | 2927 | } |
35027d0c KH |
2928 | else if (c > encoding->max_char) |
2929 | return Qnil; | |
c2f5bfd6 KH |
2930 | } |
2931 | ||
4007dd1c | 2932 | work = Fcopy_font_spec (spec); |
35027d0c KH |
2933 | XSETFRAME (frame, f); |
2934 | size = AREF (spec, FONT_SIZE_INDEX); | |
1d1e1245 KH |
2935 | pixel_size = font_pixel_size (f, spec); |
2936 | if (pixel_size == 0) | |
2937 | { | |
2938 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
2939 | ||
2940 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
2941 | } | |
4007dd1c KH |
2942 | ASET (work, FONT_SIZE_INDEX, Qnil); |
2943 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
2944 | if (! NILP (foundry[0])) | |
2945 | foundry[1] = null_vector; | |
2946 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
2947 | { | |
2948 | foundry[0] = font_intern_prop (SDATA (attrs[LFACE_FOUNDRY_INDEX]), | |
2949 | SBYTES (attrs[LFACE_FOUNDRY_INDEX]), 1); | |
2950 | foundry[1] = Qnil; | |
2951 | foundry[2] = null_vector; | |
2952 | } | |
2953 | else | |
2954 | foundry[0] = Qnil, foundry[1] = null_vector; | |
2955 | ||
2956 | val = AREF (work, FONT_FAMILY_INDEX); | |
2957 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
2958 | val = font_intern_prop (SDATA (attrs[LFACE_FAMILY_INDEX]), | |
2959 | SBYTES (attrs[LFACE_FAMILY_INDEX]), 1); | |
2960 | if (NILP (val)) | |
2961 | { | |
2962 | family = alloca ((sizeof family[0]) * 2); | |
2963 | family[0] = Qnil; | |
2964 | family[1] = null_vector; /* terminator. */ | |
2965 | } | |
2966 | else | |
2967 | { | |
2968 | Lisp_Object alters | |
2969 | = Fassoc_string (val, Vface_alternative_font_family_alist, Qt); | |
2970 | ||
2971 | if (! NILP (alters)) | |
2972 | { | |
2973 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
2974 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
2975 | family[i] = XCAR (alters); | |
2976 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
2977 | family[i++] = Qnil; | |
2978 | family[i] = null_vector; | |
2979 | } | |
2980 | else | |
2981 | { | |
2982 | family = alloca ((sizeof family[0]) * 3); | |
2983 | i = 0; | |
2984 | family[i++] = val; | |
2985 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
2986 | family[i++] = Qnil; | |
2987 | family[i] = null_vector; | |
2988 | } | |
2989 | } | |
2990 | ||
d0a47776 | 2991 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 2992 | { |
d0a47776 KH |
2993 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
2994 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 2995 | { |
d0a47776 KH |
2996 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
2997 | for (k = 0; SYMBOLP (registry[k]); k++) | |
2998 | { | |
2999 | ASET (work, FONT_REGISTRY_INDEX, registry[j]); | |
3000 | entities = font_list_entities (frame, work); | |
3001 | if (ASIZE (entities) > 0) | |
3002 | goto found; | |
3003 | } | |
4007dd1c | 3004 | } |
4007dd1c | 3005 | } |
d0a47776 KH |
3006 | return Qnil; |
3007 | found: | |
35027d0c KH |
3008 | if (ASIZE (entities) == 1) |
3009 | { | |
3010 | if (c < 0) | |
3011 | return AREF (entities, 0); | |
3012 | } | |
3013 | else | |
c2f5bfd6 | 3014 | { |
fe5ddfbc | 3015 | /* Sort fonts by properties specified in LFACE. */ |
ec6fe57c | 3016 | Lisp_Object prefer = scratch_font_prefer; |
d0ab1ebe | 3017 | |
35027d0c | 3018 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
4007dd1c | 3019 | ASET (prefer, i, AREF (work, i)); |
79f105c9 KH |
3020 | if (FONTP (attrs[LFACE_FONT_INDEX])) |
3021 | { | |
3022 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3023 | ||
3024 | for (i = 0; i < FONT_EXTRA_INDEX; i++) | |
3025 | if (NILP (AREF (prefer, i))) | |
3026 | ASET (prefer, i, AREF (face_font, i)); | |
3027 | } | |
35027d0c KH |
3028 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) |
3029 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3030 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3031 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3032 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3033 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
1d1e1245 | 3034 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); |
4007dd1c | 3035 | entities = font_sort_entites (entities, prefer, frame, work, c < 0); |
c2f5bfd6 | 3036 | } |
1701724c | 3037 | if (c < 0) |
35027d0c | 3038 | return entities; |
45eb10fb | 3039 | |
35027d0c KH |
3040 | for (i = 0; i < ASIZE (entities); i++) |
3041 | { | |
3042 | int j; | |
3043 | ||
3044 | val = AREF (entities, i); | |
3045 | if (i > 0) | |
3046 | { | |
3047 | for (j = FONT_FOUNDRY_INDEX; j <= FONT_REGISTRY_INDEX; j++) | |
3048 | if (! EQ (AREF (val, j), props[j])) | |
3049 | break; | |
3050 | if (j > FONT_REGISTRY_INDEX) | |
3051 | continue; | |
3052 | } | |
3053 | for (j = FONT_FOUNDRY_INDEX; j <= FONT_REGISTRY_INDEX; j++) | |
3054 | props[j] = AREF (val, j); | |
3055 | result = font_has_char (f, val, c); | |
3056 | if (result > 0) | |
3057 | return val; | |
3058 | if (result == 0) | |
3059 | return Qnil; | |
3060 | val = font_open_for_lface (f, val, attrs, spec); | |
3061 | if (NILP (val)) | |
3062 | continue; | |
3063 | result = font_has_char (f, val, c); | |
3064 | font_close_object (f, val); | |
3065 | if (result > 0) | |
3066 | return AREF (entities, i); | |
3067 | } | |
1701724c KH |
3068 | return Qnil; |
3069 | } | |
45eb10fb KH |
3070 | |
3071 | ||
c2f5bfd6 | 3072 | Lisp_Object |
35027d0c | 3073 | font_open_for_lface (f, entity, attrs, spec) |
c2f5bfd6 | 3074 | FRAME_PTR f; |
c2f5bfd6 | 3075 | Lisp_Object entity; |
35027d0c | 3076 | Lisp_Object *attrs; |
733fd013 | 3077 | Lisp_Object spec; |
c2f5bfd6 | 3078 | { |
9331887d | 3079 | int size; |
c2f5bfd6 | 3080 | |
4007dd1c KH |
3081 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3082 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3083 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3084 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3085 | size = font_pixel_size (f, spec); |
733fd013 KH |
3086 | else |
3087 | { | |
35027d0c | 3088 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); |
733fd013 KH |
3089 | |
3090 | pt /= 10; | |
3091 | size = POINT_TO_PIXEL (pt, f->resy); | |
3092 | } | |
c2f5bfd6 KH |
3093 | return font_open_entity (f, entity, size); |
3094 | } | |
3095 | ||
45eb10fb | 3096 | |
35027d0c KH |
3097 | /* Find a font satisfying SPEC and best matching with face's |
3098 | attributes in ATTRS on FRAME, and return the opened | |
3099 | font-object. */ | |
45eb10fb | 3100 | |
35027d0c KH |
3101 | Lisp_Object |
3102 | font_load_for_lface (f, attrs, spec) | |
c2f5bfd6 | 3103 | FRAME_PTR f; |
35027d0c | 3104 | Lisp_Object *attrs, spec; |
c2f5bfd6 | 3105 | { |
35027d0c | 3106 | Lisp_Object entity; |
ef18374f | 3107 | |
35027d0c KH |
3108 | entity = font_find_for_lface (f, attrs, spec, -1); |
3109 | if (NILP (entity)) | |
ef18374f | 3110 | { |
35027d0c KH |
3111 | /* No font is listed for SPEC, but each font-backend may have |
3112 | the different criteria about "font matching". So, try | |
3113 | it. */ | |
3114 | entity = font_matching_entity (f, attrs, spec); | |
3115 | if (NILP (entity)) | |
3116 | return Qnil; | |
c2f5bfd6 | 3117 | } |
35027d0c | 3118 | return font_open_for_lface (f, entity, attrs, spec); |
c2f5bfd6 KH |
3119 | } |
3120 | ||
45eb10fb KH |
3121 | |
3122 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3123 | ||
c2f5bfd6 KH |
3124 | void |
3125 | font_prepare_for_face (f, face) | |
3126 | FRAME_PTR f; | |
3127 | struct face *face; | |
3128 | { | |
35027d0c KH |
3129 | if (face->font->driver->prepare_face) |
3130 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3131 | } |
3132 | ||
45eb10fb KH |
3133 | |
3134 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3135 | ||
c2f5bfd6 KH |
3136 | void |
3137 | font_done_for_face (f, face) | |
3138 | FRAME_PTR f; | |
3139 | struct face *face; | |
3140 | { | |
35027d0c KH |
3141 | if (face->font->driver->done_face) |
3142 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3143 | face->extra = NULL; |
3144 | } | |
3145 | ||
45eb10fb KH |
3146 | |
3147 | /* Open a font best matching with NAME on frame F. If no proper font | |
3148 | is found, return Qnil. */ | |
3149 | ||
c2f5bfd6 KH |
3150 | Lisp_Object |
3151 | font_open_by_name (f, name) | |
3152 | FRAME_PTR f; | |
3153 | char *name; | |
3154 | { | |
ef18374f | 3155 | Lisp_Object args[2]; |
4007dd1c | 3156 | Lisp_Object spec, attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3157 | |
ef18374f KH |
3158 | args[0] = QCname; |
3159 | args[1] = make_unibyte_string (name, strlen (name)); | |
3160 | spec = Ffont_spec (2, args); | |
4007dd1c KH |
3161 | /* We set up the default font-related attributes of a face to prefer |
3162 | a moderate font. */ | |
3163 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3164 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3165 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
3166 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); | |
3167 | attrs[LFACE_FONT_INDEX] = Qnil; | |
3168 | ||
3169 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3170 | } |
3171 | ||
3172 | ||
3173 | /* Register font-driver DRIVER. This function is used in two ways. | |
3174 | ||
417a1b10 KH |
3175 | The first is with frame F non-NULL. In this case, make DRIVER |
3176 | available (but not yet activated) on F. All frame creaters | |
3177 | (e.g. Fx_create_frame) must call this function at least once with | |
3178 | an available font-driver. | |
c2f5bfd6 KH |
3179 | |
3180 | The second is with frame F NULL. In this case, DRIVER is globally | |
3181 | registered in the variable `font_driver_list'. All font-driver | |
3182 | implementations must call this function in its syms_of_XXXX | |
3183 | (e.g. syms_of_xfont). */ | |
3184 | ||
3185 | void | |
3186 | register_font_driver (driver, f) | |
3187 | struct font_driver *driver; | |
3188 | FRAME_PTR f; | |
3189 | { | |
3190 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3191 | struct font_driver_list *prev, *list; | |
3192 | ||
3193 | if (f && ! driver->draw) | |
43a1d19b | 3194 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3195 | SDATA (SYMBOL_NAME (driver->type))); |
3196 | ||
3197 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3198 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3199 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3200 | ||
3201 | list = malloc (sizeof (struct font_driver_list)); | |
417a1b10 | 3202 | list->on = 0; |
c2f5bfd6 KH |
3203 | list->driver = driver; |
3204 | list->next = NULL; | |
3205 | if (prev) | |
3206 | prev->next = list; | |
3207 | else if (f) | |
3208 | f->font_driver_list = list; | |
3209 | else | |
3210 | font_driver_list = list; | |
72606e45 KH |
3211 | if (! f) |
3212 | num_font_drivers++; | |
c2f5bfd6 KH |
3213 | } |
3214 | ||
45eb10fb | 3215 | |
f697fff0 | 3216 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3217 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3218 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3219 | |
ca4da08a KH |
3220 | A caller must free all realized faces if any in advance. The |
3221 | return value is a list of font backends actually made used on | |
3222 | F. */ | |
e950d6f1 KH |
3223 | |
3224 | Lisp_Object | |
3225 | font_update_drivers (f, new_drivers) | |
417a1b10 KH |
3226 | FRAME_PTR f; |
3227 | Lisp_Object new_drivers; | |
417a1b10 KH |
3228 | { |
3229 | Lisp_Object active_drivers = Qnil; | |
4007dd1c | 3230 | struct font_driver *driver; |
417a1b10 KH |
3231 | struct font_driver_list *list; |
3232 | ||
4007dd1c KH |
3233 | /* At first, turn off non-requested drivers, and turn on requested |
3234 | drivers. */ | |
f697fff0 | 3235 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c KH |
3236 | { |
3237 | driver = list->driver; | |
3238 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) | |
3239 | != list->on) | |
3240 | { | |
3241 | if (list->on) | |
3242 | { | |
3243 | if (driver->end_for_frame) | |
3244 | driver->end_for_frame (f); | |
3245 | font_finish_cache (f, driver); | |
3246 | list->on = 0; | |
3247 | } | |
3248 | else | |
3249 | { | |
3250 | if (! driver->start_for_frame | |
3251 | || driver->start_for_frame (f) == 0) | |
3252 | { | |
3253 | font_prepare_cache (f, driver); | |
3254 | list->on = 1; | |
3255 | } | |
3256 | } | |
3257 | } | |
3258 | } | |
3259 | ||
3260 | if (NILP (new_drivers)) | |
3261 | return Qnil; | |
3262 | ||
3263 | if (! EQ (new_drivers, Qt)) | |
3264 | { | |
3265 | /* Re-order the driver list according to new_drivers. */ | |
3266 | struct font_driver_list **list_table, *list; | |
3267 | Lisp_Object tail; | |
3268 | int i; | |
3269 | ||
3270 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3271 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3272 | { | |
3273 | for (list = f->font_driver_list; list; list = list->next) | |
3274 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3275 | break; | |
3276 | if (list) | |
3277 | list_table[i++] = list; | |
3278 | } | |
3279 | for (list = f->font_driver_list; list; list = list->next) | |
3280 | if (! list->on) | |
3281 | list_table[i] = list; | |
3282 | list_table[i] = NULL; | |
3283 | ||
3284 | f->font_driver_list = list = NULL; | |
3285 | for (i = 0; list_table[i]; i++) | |
3286 | { | |
3287 | if (list) | |
3288 | list->next = list_table[i], list = list->next; | |
3289 | else | |
3290 | f->font_driver_list = list = list_table[i]; | |
3291 | } | |
3292 | list->next = NULL; | |
3293 | } | |
417a1b10 | 3294 | |
4007dd1c KH |
3295 | for (list = f->font_driver_list; list; list = list->next) |
3296 | if (list->on) | |
3297 | active_drivers = nconc2 (active_drivers, | |
3298 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3299 | return active_drivers; |
417a1b10 KH |
3300 | } |
3301 | ||
f697fff0 KH |
3302 | int |
3303 | font_put_frame_data (f, driver, data) | |
3304 | FRAME_PTR f; | |
3305 | struct font_driver *driver; | |
3306 | void *data; | |
3307 | { | |
3308 | struct font_data_list *list, *prev; | |
3309 | ||
3310 | for (prev = NULL, list = f->font_data_list; list; | |
3311 | prev = list, list = list->next) | |
3312 | if (list->driver == driver) | |
3313 | break; | |
3314 | if (! data) | |
3315 | { | |
3316 | if (list) | |
3317 | { | |
3318 | if (prev) | |
3319 | prev->next = list->next; | |
3320 | else | |
3321 | f->font_data_list = list->next; | |
3322 | free (list); | |
3323 | } | |
3324 | return 0; | |
3325 | } | |
3326 | ||
3327 | if (! list) | |
3328 | { | |
3329 | list = malloc (sizeof (struct font_data_list)); | |
3330 | if (! list) | |
3331 | return -1; | |
3332 | list->driver = driver; | |
3333 | list->next = f->font_data_list; | |
3334 | f->font_data_list = list; | |
3335 | } | |
3336 | list->data = data; | |
3337 | return 0; | |
3338 | } | |
3339 | ||
3340 | ||
3341 | void * | |
3342 | font_get_frame_data (f, driver) | |
3343 | FRAME_PTR f; | |
3344 | struct font_driver *driver; | |
3345 | { | |
3346 | struct font_data_list *list; | |
3347 | ||
3348 | for (list = f->font_data_list; list; list = list->next) | |
3349 | if (list->driver == driver) | |
3350 | break; | |
3351 | if (! list) | |
3352 | return NULL; | |
3353 | return list->data; | |
3354 | } | |
3355 | ||
417a1b10 | 3356 | |
45eb10fb | 3357 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3358 | POS in window W. If STRING is non-nil, it is a string containing C |
3359 | at index POS. If C is negative, get C from the current buffer or | |
3360 | STRING. */ | |
45eb10fb | 3361 | |
10d16101 | 3362 | Lisp_Object |
e3ee0340 | 3363 | font_at (c, pos, face, w, string) |
10d16101 KH |
3364 | int c; |
3365 | EMACS_INT pos; | |
3366 | struct face *face; | |
3367 | struct window *w; | |
e3ee0340 | 3368 | Lisp_Object string; |
10d16101 KH |
3369 | { |
3370 | FRAME_PTR f; | |
e3ee0340 | 3371 | int multibyte; |
35027d0c | 3372 | Lisp_Object font_object; |
e3ee0340 KH |
3373 | |
3374 | if (c < 0) | |
3375 | { | |
3376 | if (NILP (string)) | |
3377 | { | |
3378 | multibyte = ! NILP (current_buffer->enable_multibyte_characters); | |
3379 | if (multibyte) | |
3380 | { | |
3381 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3382 | ||
3383 | c = FETCH_CHAR (pos_byte); | |
3384 | } | |
3385 | else | |
3386 | c = FETCH_BYTE (pos); | |
3387 | } | |
3388 | else | |
3389 | { | |
3390 | unsigned char *str; | |
3391 | ||
3392 | multibyte = STRING_MULTIBYTE (string); | |
3393 | if (multibyte) | |
3394 | { | |
3395 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3396 | ||
3397 | str = SDATA (string) + pos_byte; | |
3398 | c = STRING_CHAR (str, 0); | |
3399 | } | |
3400 | else | |
3401 | c = SDATA (string)[pos]; | |
3402 | } | |
3403 | } | |
10d16101 KH |
3404 | |
3405 | f = XFRAME (w->frame); | |
1385a806 KH |
3406 | if (! FRAME_WINDOW_P (f)) |
3407 | return Qnil; | |
10d16101 KH |
3408 | if (! face) |
3409 | { | |
e3ee0340 | 3410 | int face_id; |
0f8b27ea | 3411 | EMACS_INT endptr; |
e3ee0340 KH |
3412 | |
3413 | if (STRINGP (string)) | |
3414 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3415 | DEFAULT_FACE_ID, 0); |
3416 | else | |
e3ee0340 | 3417 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
10d16101 KH |
3418 | pos + 100, 0); |
3419 | face = FACE_FROM_ID (f, face_id); | |
3420 | } | |
e3ee0340 KH |
3421 | if (multibyte) |
3422 | { | |
3423 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3424 | face = FACE_FROM_ID (f, face_id); | |
3425 | } | |
35027d0c | 3426 | if (! face->font) |
10d16101 | 3427 | return Qnil; |
35027d0c | 3428 | |
d0ab1ebe | 3429 | font_assert (font_check_object ((struct font *) face->font)); |
35027d0c KH |
3430 | XSETFONT (font_object, face->font); |
3431 | return font_object; | |
3432 | } | |
3433 | ||
3434 | ||
3435 | /* Check how many characters after POS (at most to LIMIT) can be | |
3436 | displayed by the same font. FACE is the face selected for the | |
3437 | character as POS on frame F. STRING, if not nil, is the string to | |
3438 | check instead of the current buffer. | |
027a33c0 | 3439 | |
35027d0c KH |
3440 | The return value is the position of the character that is displayed |
3441 | by the differnt font than that of the character as POS. */ | |
3442 | ||
3443 | EMACS_INT | |
3444 | font_range (pos, limit, face, f, string) | |
3445 | EMACS_INT pos, limit; | |
3446 | struct face *face; | |
3447 | FRAME_PTR f; | |
3448 | Lisp_Object string; | |
3449 | { | |
3450 | int multibyte; | |
3451 | EMACS_INT pos_byte; | |
3452 | int c; | |
3453 | struct font *font; | |
3454 | int first = 1; | |
3455 | ||
3456 | if (NILP (string)) | |
3457 | { | |
3458 | multibyte = ! NILP (current_buffer->enable_multibyte_characters); | |
3459 | pos_byte = CHAR_TO_BYTE (pos); | |
3460 | } | |
3461 | else | |
3462 | { | |
3463 | multibyte = STRING_MULTIBYTE (string); | |
3464 | pos_byte = string_char_to_byte (string, pos); | |
3465 | } | |
3466 | ||
3467 | if (! multibyte) | |
3468 | /* All unibyte character are displayed by the same font. */ | |
3469 | return limit; | |
3470 | ||
3471 | while (pos < limit) | |
3472 | { | |
3473 | int face_id; | |
3474 | ||
3475 | if (NILP (string)) | |
3476 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3477 | else | |
3478 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
3479 | face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3480 | face = FACE_FROM_ID (f, face_id); | |
3481 | if (first) | |
3482 | { | |
3483 | font = face->font; | |
3484 | first = 0; | |
3485 | continue; | |
3486 | } | |
3487 | else if (font != face->font) | |
3488 | { | |
3489 | pos--; | |
3490 | break; | |
3491 | } | |
3492 | } | |
3493 | return pos; | |
10d16101 KH |
3494 | } |
3495 | ||
c2f5bfd6 KH |
3496 | \f |
3497 | /* Lisp API */ | |
3498 | ||
35027d0c | 3499 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3500 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3501 | Return nil otherwise. |
3502 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3503 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c KH |
3504 | `font-object'. */) |
3505 | (object, extra_type) | |
3506 | Lisp_Object object, extra_type; | |
c2f5bfd6 | 3507 | { |
35027d0c KH |
3508 | if (NILP (extra_type)) |
3509 | return (FONTP (object) ? Qt : Qnil); | |
3510 | if (EQ (extra_type, Qfont_spec)) | |
3511 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3512 | if (EQ (extra_type, Qfont_entity)) | |
3513 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3514 | if (EQ (extra_type, Qfont_object)) | |
3515 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3516 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3517 | } |
3518 | ||
3519 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, | |
45eb10fb KH |
3520 | doc: /* Return a newly created font-spec with arguments as properties. |
3521 | ||
3522 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3523 | valid font property name listed below: | |
3524 | ||
3525 | `:family', `:weight', `:slant', `:width' | |
3526 | ||
3527 | They are the same as face attributes of the same name. See | |
51c01100 | 3528 | `set-face-attribute'. |
45eb10fb KH |
3529 | |
3530 | `:foundry' | |
3531 | ||
3532 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3533 | ||
3534 | `:adstyle' | |
3535 | ||
3536 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3537 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3538 | |
3539 | `:registry' | |
3540 | ||
3541 | VALUE must be a string or a symbol specifying the charset registry and | |
3542 | encoding of a font, e.g. ``iso8859-1''. | |
3543 | ||
3544 | `:size' | |
3545 | ||
3546 | VALUE must be a non-negative integer or a floating point number | |
35027d0c | 3547 | specifying the font size. It specifies the font size in pixels |
f697fff0 KH |
3548 | (if VALUE is an integer), or in points (if VALUE is a float). |
3549 | usage: (font-spec ARGS ...) */) | |
c2f5bfd6 KH |
3550 | (nargs, args) |
3551 | int nargs; | |
3552 | Lisp_Object *args; | |
3553 | { | |
35027d0c | 3554 | Lisp_Object spec = font_make_spec (); |
c2f5bfd6 KH |
3555 | int i; |
3556 | ||
3557 | for (i = 0; i < nargs; i += 2) | |
3558 | { | |
c2f5bfd6 KH |
3559 | Lisp_Object key = args[i], val = args[i + 1]; |
3560 | ||
35027d0c KH |
3561 | if (EQ (key, QCname)) |
3562 | { | |
3563 | CHECK_STRING (val); | |
3564 | font_parse_name ((char *) SDATA (val), spec); | |
3565 | font_put_extra (spec, key, val); | |
3566 | } | |
c2f5bfd6 | 3567 | else |
4485a28e | 3568 | { |
35027d0c KH |
3569 | int idx = get_font_prop_index (key); |
3570 | ||
3571 | if (idx >= 0) | |
ec6fe57c | 3572 | { |
35027d0c KH |
3573 | val = font_prop_validate (idx, Qnil, val); |
3574 | if (idx < FONT_EXTRA_INDEX) | |
3575 | ASET (spec, idx, val); | |
3576 | else | |
3577 | font_put_extra (spec, key, val); | |
ec6fe57c | 3578 | } |
35027d0c KH |
3579 | else |
3580 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3581 | } |
e950d6f1 | 3582 | } |
c2f5bfd6 KH |
3583 | return spec; |
3584 | } | |
3585 | ||
35027d0c KH |
3586 | DEFUN ("copy-font-spec", Fcopy_font_spec, Scopy_font_spec, 1, 1, 0, |
3587 | doc: /* Return a copy of FONT as a font-spec. */) | |
3588 | (font) | |
3589 | Lisp_Object font; | |
3590 | { | |
3591 | Lisp_Object new_spec, tail, extra; | |
3592 | int i; | |
3593 | ||
3594 | CHECK_FONT (font); | |
3595 | new_spec = font_make_spec (); | |
3596 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3597 | ASET (new_spec, i, AREF (font, i)); | |
3598 | extra = Qnil; | |
3599 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3600 | { | |
3601 | if (! EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3602 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3603 | } | |
3604 | ASET (new_spec, FONT_EXTRA_INDEX, extra); | |
3605 | return new_spec; | |
3606 | } | |
3607 | ||
3608 | DEFUN ("merge-font-spec", Fmerge_font_spec, Smerge_font_spec, 2, 2, 0, | |
3609 | doc: /* Merge font-specs FROM and TO, and return a new font-spec. | |
3610 | Every specified properties in FROM override the corresponding | |
3611 | properties in TO. */) | |
3612 | (from, to) | |
3613 | Lisp_Object from, to; | |
3614 | { | |
3615 | Lisp_Object extra, tail; | |
3616 | int i; | |
3617 | ||
3618 | CHECK_FONT (from); | |
3619 | CHECK_FONT (to); | |
3620 | to = Fcopy_font_spec (to); | |
3621 | for (i = 0; i < FONT_EXTRA_INDEX; i++) | |
3622 | ASET (to, i, AREF (from, i)); | |
3623 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3624 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3625 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3626 | { | |
3627 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3628 | ||
3629 | if (! NILP (slot)) | |
3630 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3631 | else | |
3632 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3633 | } | |
3634 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3635 | return to; | |
3636 | } | |
c2f5bfd6 KH |
3637 | |
3638 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, | |
45eb10fb | 3639 | doc: /* Return the value of FONT's property KEY. |
e950d6f1 | 3640 | FONT is a font-spec, a font-entity, or a font-object. */) |
45eb10fb KH |
3641 | (font, key) |
3642 | Lisp_Object font, key; | |
c2f5bfd6 | 3643 | { |
35027d0c | 3644 | int idx; |
c2f5bfd6 | 3645 | |
35027d0c KH |
3646 | CHECK_FONT (font); |
3647 | CHECK_SYMBOL (key); | |
e80e09b4 | 3648 | |
35027d0c KH |
3649 | idx = get_font_prop_index (key); |
3650 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
c2f5bfd6 | 3651 | return AREF (font, idx); |
35027d0c | 3652 | return Fcdr (Fassq (key, AREF (font, FONT_EXTRA_INDEX))); |
c2f5bfd6 KH |
3653 | } |
3654 | ||
3655 | ||
3656 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, | |
51c01100 | 3657 | doc: /* Set one property of FONT-SPEC: give property PROP value VAL. */) |
c2f5bfd6 KH |
3658 | (font_spec, prop, val) |
3659 | Lisp_Object font_spec, prop, val; | |
3660 | { | |
35027d0c | 3661 | int idx; |
c2f5bfd6 KH |
3662 | |
3663 | CHECK_FONT_SPEC (font_spec); | |
35027d0c KH |
3664 | idx = get_font_prop_index (prop); |
3665 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
69eb9e8b | 3666 | ASET (font_spec, idx, font_prop_validate (idx, Qnil, val)); |
c2f5bfd6 | 3667 | else |
35027d0c | 3668 | font_put_extra (font_spec, prop, font_prop_validate (0, prop, val)); |
c2f5bfd6 KH |
3669 | return val; |
3670 | } | |
3671 | ||
3672 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, | |
3673 | doc: /* List available fonts matching FONT-SPEC on the current frame. | |
3674 | Optional 2nd argument FRAME specifies the target frame. | |
3675 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
3676 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
3677 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 3678 | how close they are to PREFER. */) |
c2f5bfd6 KH |
3679 | (font_spec, frame, num, prefer) |
3680 | Lisp_Object font_spec, frame, num, prefer; | |
3681 | { | |
3682 | Lisp_Object vec, list, tail; | |
3683 | int n = 0, i, len; | |
3684 | ||
3685 | if (NILP (frame)) | |
3686 | frame = selected_frame; | |
3687 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 3688 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
3689 | if (! NILP (num)) |
3690 | { | |
3691 | CHECK_NUMBER (num); | |
3692 | n = XINT (num); | |
3693 | if (n <= 0) | |
3694 | return Qnil; | |
3695 | } | |
3696 | if (! NILP (prefer)) | |
35027d0c | 3697 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 KH |
3698 | |
3699 | vec = font_list_entities (frame, font_spec); | |
3700 | len = ASIZE (vec); | |
3701 | if (len == 0) | |
3702 | return Qnil; | |
3703 | if (len == 1) | |
3704 | return Fcons (AREF (vec, 0), Qnil); | |
3705 | ||
3706 | if (! NILP (prefer)) | |
35027d0c | 3707 | vec = font_sort_entites (vec, prefer, frame, font_spec, 0); |
c2f5bfd6 KH |
3708 | |
3709 | list = tail = Fcons (AREF (vec, 0), Qnil); | |
3710 | if (n == 0 || n > len) | |
3711 | n = len; | |
3712 | for (i = 1; i < n; i++) | |
3713 | { | |
3714 | Lisp_Object val = Fcons (AREF (vec, i), Qnil); | |
3715 | ||
3716 | XSETCDR (tail, val); | |
3717 | tail = val; | |
3718 | } | |
3719 | return list; | |
3720 | } | |
3721 | ||
35027d0c | 3722 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 3723 | doc: /* List available font families on the current frame. |
027a33c0 | 3724 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
c2f5bfd6 KH |
3725 | (frame) |
3726 | Lisp_Object frame; | |
3727 | { | |
3728 | FRAME_PTR f; | |
3729 | struct font_driver_list *driver_list; | |
3730 | Lisp_Object list; | |
3731 | ||
3732 | if (NILP (frame)) | |
3733 | frame = selected_frame; | |
3734 | CHECK_LIVE_FRAME (frame); | |
3735 | f = XFRAME (frame); | |
3736 | list = Qnil; | |
3737 | for (driver_list = f->font_driver_list; driver_list; | |
3738 | driver_list = driver_list->next) | |
3739 | if (driver_list->driver->list_family) | |
3740 | { | |
3741 | Lisp_Object val = driver_list->driver->list_family (frame); | |
3742 | ||
3743 | if (NILP (list)) | |
3744 | list = val; | |
3745 | else | |
3746 | { | |
3747 | Lisp_Object tail = list; | |
3748 | ||
3749 | for (; CONSP (val); val = XCDR (val)) | |
3750 | if (NILP (Fmemq (XCAR (val), tail))) | |
3751 | list = Fcons (XCAR (val), list); | |
3752 | } | |
3753 | } | |
3754 | return list; | |
3755 | } | |
3756 | ||
3757 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
3758 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
3759 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
3760 | (font_spec, frame) | |
3761 | Lisp_Object font_spec, frame; | |
3762 | { | |
3763 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
3764 | ||
3765 | if (CONSP (val)) | |
3766 | val = XCAR (val); | |
3767 | return val; | |
3768 | } | |
3769 | ||
d0ab1ebe | 3770 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
3771 | doc: /* Return XLFD name of FONT. |
3772 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
3773 | If the name is too long for XLFD (maximum 255 chars), return nil. |
3774 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
3775 | the consecutive wildcards are folded to one. */) | |
3776 | (font, fold_wildcards) | |
3777 | Lisp_Object font, fold_wildcards; | |
c2f5bfd6 KH |
3778 | { |
3779 | char name[256]; | |
3780 | int pixel_size = 0; | |
3781 | ||
35027d0c KH |
3782 | CHECK_FONT (font); |
3783 | ||
3784 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 3785 | { |
35027d0c | 3786 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 3787 | |
35027d0c KH |
3788 | if (STRINGP (font_name) |
3789 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
3790 | { |
3791 | if (NILP (fold_wildcards)) | |
3792 | return font_name; | |
3793 | strcpy (name, (char *) SDATA (font_name)); | |
3794 | goto done; | |
3795 | } | |
35027d0c | 3796 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 3797 | } |
c2f5bfd6 KH |
3798 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
3799 | return Qnil; | |
d0ab1ebe KH |
3800 | done: |
3801 | if (! NILP (fold_wildcards)) | |
3802 | { | |
3803 | char *p0 = name, *p1; | |
3804 | ||
3805 | while ((p1 = strstr (p0, "-*-*"))) | |
3806 | { | |
3807 | strcpy (p1, p1 + 2); | |
3808 | p0 = p1; | |
3809 | } | |
3810 | } | |
3811 | ||
c2f5bfd6 KH |
3812 | return build_string (name); |
3813 | } | |
3814 | ||
3815 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
3816 | doc: /* Clear font cache. */) | |
3817 | () | |
3818 | { | |
3819 | Lisp_Object list, frame; | |
3820 | ||
3821 | FOR_EACH_FRAME (list, frame) | |
3822 | { | |
3823 | FRAME_PTR f = XFRAME (frame); | |
3824 | struct font_driver_list *driver_list = f->font_driver_list; | |
3825 | ||
3826 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
3827 | if (driver_list->on) |
3828 | { | |
ca4da08a KH |
3829 | Lisp_Object cache = driver_list->driver->get_cache (f); |
3830 | Lisp_Object val; | |
51c01100 | 3831 | |
ca4da08a | 3832 | val = XCDR (cache); |
43c0454d KH |
3833 | while (! NILP (val) |
3834 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 3835 | val = XCDR (val); |
d0ab1ebe | 3836 | font_assert (! NILP (val)); |
ca4da08a KH |
3837 | val = XCDR (XCAR (val)); |
3838 | if (XINT (XCAR (val)) == 0) | |
417a1b10 | 3839 | { |
ca4da08a KH |
3840 | font_clear_cache (f, XCAR (val), driver_list->driver); |
3841 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 3842 | } |
417a1b10 | 3843 | } |
c2f5bfd6 KH |
3844 | } |
3845 | ||
3846 | return Qnil; | |
3847 | } | |
3848 | ||
68eaeee4 | 3849 | /* The following three functions are still experimental. */ |
45eb10fb | 3850 | |
c2f5bfd6 | 3851 | DEFUN ("font-make-gstring", Ffont_make_gstring, Sfont_make_gstring, 2, 2, 0, |
e80e09b4 KH |
3852 | doc: /* Return a newly created g-string for FONT-OBJECT with NUM glyphs. |
3853 | FONT-OBJECT may be nil if it is not yet known. | |
3854 | ||
3855 | G-string is sequence of glyphs of a specific font, | |
3856 | and is a vector of this form: | |
3857 | [ HEADER GLYPH ... ] | |
3858 | HEADER is a vector of this form: | |
1701724c | 3859 | [FONT-OBJECT WIDTH LBEARING RBEARING ASCENT DESCENT] |
e80e09b4 | 3860 | where |
733fd013 | 3861 | FONT-OBJECT is a font-object for all glyphs in the g-string, |
027a33c0 | 3862 | WIDTH thru DESCENT are the metrics (in pixels) of the whole G-string. |
e80e09b4 | 3863 | GLYPH is a vector of this form: |
1701724c KH |
3864 | [ FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT |
3865 | [ [X-OFF Y-OFF WADJUST] | nil] ] | |
e80e09b4 KH |
3866 | where |
3867 | FROM-IDX and TO-IDX are used internally and should not be touched. | |
3868 | C is the character of the glyph. | |
3869 | CODE is the glyph-code of C in FONT-OBJECT. | |
027a33c0 | 3870 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. |
e80e09b4 | 3871 | X-OFF and Y-OFF are offests to the base position for the glyph. |
e80e09b4 | 3872 | WADJUST is the adjustment to the normal width of the glyph. */) |
c2f5bfd6 KH |
3873 | (font_object, num) |
3874 | Lisp_Object font_object, num; | |
3875 | { | |
3876 | Lisp_Object gstring, g; | |
3877 | int len; | |
3878 | int i; | |
3879 | ||
3880 | if (! NILP (font_object)) | |
3881 | CHECK_FONT_OBJECT (font_object); | |
3882 | CHECK_NATNUM (num); | |
3883 | ||
3884 | len = XINT (num) + 1; | |
3885 | gstring = Fmake_vector (make_number (len), Qnil); | |
3886 | g = Fmake_vector (make_number (6), Qnil); | |
3887 | ASET (g, 0, font_object); | |
3888 | ASET (gstring, 0, g); | |
3889 | for (i = 1; i < len; i++) | |
1701724c | 3890 | ASET (gstring, i, Fmake_vector (make_number (10), Qnil)); |
c2f5bfd6 KH |
3891 | return gstring; |
3892 | } | |
3893 | ||
3894 | DEFUN ("font-fill-gstring", Ffont_fill_gstring, Sfont_fill_gstring, 4, 5, 0, | |
51c01100 JB |
3895 | doc: /* Fill in glyph-string GSTRING by characters for FONT-OBJECT. |
3896 | START and END specify the region to extract characters. | |
3897 | If optional 5rd argument OBJECT is non-nil, it is a buffer or a string from | |
c2f5bfd6 | 3898 | where to extract characters. |
027a33c0 | 3899 | FONT-OBJECT may be nil if GSTRING already contains one. */) |
c2f5bfd6 KH |
3900 | (gstring, font_object, start, end, object) |
3901 | Lisp_Object gstring, font_object, start, end, object; | |
3902 | { | |
3903 | int len, i, c; | |
3904 | unsigned code; | |
3905 | struct font *font; | |
3906 | ||
3907 | CHECK_VECTOR (gstring); | |
3908 | if (NILP (font_object)) | |
10d16101 | 3909 | font_object = LGSTRING_FONT (gstring); |
35027d0c | 3910 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
3911 | |
3912 | if (STRINGP (object)) | |
3913 | { | |
3914 | const unsigned char *p; | |
3915 | ||
3916 | CHECK_NATNUM (start); | |
3917 | CHECK_NATNUM (end); | |
3918 | if (XINT (start) > XINT (end) | |
3919 | || XINT (end) > ASIZE (object) | |
10d16101 | 3920 | || XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
1701724c | 3921 | args_out_of_range_3 (object, start, end); |
c2f5bfd6 KH |
3922 | |
3923 | len = XINT (end) - XINT (start); | |
3924 | p = SDATA (object) + string_char_to_byte (object, XINT (start)); | |
3925 | for (i = 0; i < len; i++) | |
3926 | { | |
3927 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
2930d117 EZ |
3928 | /* Shut up GCC warning in comparison with |
3929 | MOST_POSITIVE_FIXNUM below. */ | |
3930 | EMACS_INT cod; | |
c2f5bfd6 KH |
3931 | |
3932 | c = STRING_CHAR_ADVANCE (p); | |
2930d117 EZ |
3933 | cod = code = font->driver->encode_char (font, c); |
3934 | if (cod > MOST_POSITIVE_FIXNUM || code == FONT_INVALID_CODE) | |
40fb53d6 | 3935 | break; |
1701724c KH |
3936 | LGLYPH_SET_FROM (g, i); |
3937 | LGLYPH_SET_TO (g, i); | |
3938 | LGLYPH_SET_CHAR (g, c); | |
3939 | LGLYPH_SET_CODE (g, code); | |
c2f5bfd6 KH |
3940 | } |
3941 | } | |
3942 | else | |
3943 | { | |
3944 | int pos, pos_byte; | |
3945 | ||
3946 | if (! NILP (object)) | |
3947 | Fset_buffer (object); | |
3948 | validate_region (&start, &end); | |
10d16101 | 3949 | if (XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
c2f5bfd6 KH |
3950 | args_out_of_range (start, end); |
3951 | len = XINT (end) - XINT (start); | |
3952 | pos = XINT (start); | |
3953 | pos_byte = CHAR_TO_BYTE (pos); | |
3954 | for (i = 0; i < len; i++) | |
3955 | { | |
3956 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
2930d117 EZ |
3957 | /* Shut up GCC warning in comparison with |
3958 | MOST_POSITIVE_FIXNUM below. */ | |
3959 | EMACS_INT cod; | |
c2f5bfd6 KH |
3960 | |
3961 | FETCH_CHAR_ADVANCE (c, pos, pos_byte); | |
2930d117 EZ |
3962 | cod = code = font->driver->encode_char (font, c); |
3963 | if (cod > MOST_POSITIVE_FIXNUM || code == FONT_INVALID_CODE) | |
40fb53d6 | 3964 | break; |
1701724c KH |
3965 | LGLYPH_SET_FROM (g, i); |
3966 | LGLYPH_SET_TO (g, i); | |
3967 | LGLYPH_SET_CHAR (g, c); | |
3968 | LGLYPH_SET_CODE (g, code); | |
c2f5bfd6 KH |
3969 | } |
3970 | } | |
40fb53d6 | 3971 | for (; i < LGSTRING_LENGTH (gstring); i++) |
51c01100 | 3972 | LGSTRING_SET_GLYPH (gstring, i, Qnil); |
1701724c KH |
3973 | return Qnil; |
3974 | } | |
3975 | ||
3976 | DEFUN ("font-shape-text", Ffont_shape_text, Sfont_shape_text, 3, 4, 0, | |
3977 | doc: /* Shape text between FROM and TO by FONT-OBJECT. | |
3978 | If optional 4th argument STRING is non-nil, it is a string to shape, | |
3979 | and FROM and TO are indices to the string. | |
40fb53d6 KH |
3980 | The value is the end position of the text that can be shaped by |
3981 | FONT-OBJECT. */) | |
1701724c KH |
3982 | (from, to, font_object, string) |
3983 | Lisp_Object from, to, font_object, string; | |
3984 | { | |
3985 | struct font *font; | |
3986 | struct font_metrics metrics; | |
3987 | EMACS_INT start, end; | |
3988 | Lisp_Object gstring, n; | |
35027d0c | 3989 | int len, i; |
1701724c | 3990 | |
b876ea91 KH |
3991 | if (! FONT_OBJECT_P (font_object)) |
3992 | return Qnil; | |
35027d0c | 3993 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
3994 | if (! font->driver->shape) |
3995 | return Qnil; | |
3996 | ||
1701724c KH |
3997 | if (NILP (string)) |
3998 | { | |
3999 | validate_region (&from, &to); | |
4000 | start = XFASTINT (from); | |
4001 | end = XFASTINT (to); | |
4002 | modify_region (current_buffer, start, end, 0); | |
4003 | } | |
4004 | else | |
4005 | { | |
4006 | CHECK_STRING (string); | |
4007 | start = XINT (from); | |
4008 | end = XINT (to); | |
4009 | if (start < 0 || start > end || end > SCHARS (string)) | |
4010 | args_out_of_range_3 (string, from, to); | |
4011 | } | |
4012 | ||
40fb53d6 KH |
4013 | len = end - start; |
4014 | gstring = Ffont_make_gstring (font_object, make_number (len)); | |
1701724c | 4015 | Ffont_fill_gstring (gstring, font_object, from, to, string); |
51c01100 | 4016 | |
40fb53d6 KH |
4017 | /* Try at most three times with larger gstring each time. */ |
4018 | for (i = 0; i < 3; i++) | |
4019 | { | |
4020 | Lisp_Object args[2]; | |
4021 | ||
4022 | n = font->driver->shape (gstring); | |
4023 | if (INTEGERP (n)) | |
4024 | break; | |
4025 | args[0] = gstring; | |
4026 | args[1] = Fmake_vector (make_number (len), Qnil); | |
4027 | gstring = Fvconcat (2, args); | |
4028 | } | |
4029 | if (! INTEGERP (n) || XINT (n) == 0) | |
1701724c | 4030 | return Qnil; |
40fb53d6 KH |
4031 | len = XINT (n); |
4032 | ||
4033 | for (i = 0; i < len;) | |
10d16101 | 4034 | { |
1701724c | 4035 | Lisp_Object gstr; |
10d16101 | 4036 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); |
1701724c KH |
4037 | EMACS_INT this_from = LGLYPH_FROM (g); |
4038 | EMACS_INT this_to = LGLYPH_TO (g) + 1; | |
4039 | int j, k; | |
b2937119 | 4040 | int need_composition = 0; |
1701724c KH |
4041 | |
4042 | metrics.lbearing = LGLYPH_LBEARING (g); | |
4043 | metrics.rbearing = LGLYPH_RBEARING (g); | |
4044 | metrics.ascent = LGLYPH_ASCENT (g); | |
4045 | metrics.descent = LGLYPH_DESCENT (g); | |
4046 | if (NILP (LGLYPH_ADJUSTMENT (g))) | |
b2937119 KH |
4047 | { |
4048 | metrics.width = LGLYPH_WIDTH (g); | |
f9ffa1ea | 4049 | if (LGLYPH_CHAR (g) == 0 || metrics.width == 0) |
b2937119 KH |
4050 | need_composition = 1; |
4051 | } | |
1701724c KH |
4052 | else |
4053 | { | |
4054 | metrics.width = LGLYPH_WADJUST (g); | |
4055 | metrics.lbearing += LGLYPH_XOFF (g); | |
4056 | metrics.rbearing += LGLYPH_XOFF (g); | |
4057 | metrics.ascent -= LGLYPH_YOFF (g); | |
4058 | metrics.descent += LGLYPH_YOFF (g); | |
b2937119 | 4059 | need_composition = 1; |
1701724c | 4060 | } |
40fb53d6 | 4061 | for (j = i + 1; j < len; j++) |
1701724c KH |
4062 | { |
4063 | int x; | |
4064 | ||
4065 | g = LGSTRING_GLYPH (gstring, j); | |
4066 | if (this_from != LGLYPH_FROM (g)) | |
4067 | break; | |
b2937119 | 4068 | need_composition = 1; |
1701724c KH |
4069 | x = metrics.width + LGLYPH_LBEARING (g) + LGLYPH_XOFF (g); |
4070 | if (metrics.lbearing > x) | |
4071 | metrics.lbearing = x; | |
4072 | x = metrics.width + LGLYPH_RBEARING (g) + LGLYPH_XOFF (g); | |
4073 | if (metrics.rbearing < x) | |
4074 | metrics.rbearing = x; | |
4075 | x = LGLYPH_ASCENT (g) - LGLYPH_YOFF (g); | |
4076 | if (metrics.ascent < x) | |
4077 | metrics.ascent = x; | |
4078 | x = LGLYPH_DESCENT (g) - LGLYPH_YOFF (g); | |
4079 | if (metrics.descent < x) | |
4080 | metrics.descent = x; | |
4081 | if (NILP (LGLYPH_ADJUSTMENT (g))) | |
4082 | metrics.width += LGLYPH_WIDTH (g); | |
4083 | else | |
4084 | metrics.width += LGLYPH_WADJUST (g); | |
4085 | } | |
10d16101 | 4086 | |
b2937119 KH |
4087 | if (need_composition) |
4088 | { | |
4089 | gstr = Ffont_make_gstring (font_object, make_number (j - i)); | |
4090 | LGSTRING_SET_WIDTH (gstr, metrics.width); | |
4091 | LGSTRING_SET_LBEARING (gstr, metrics.lbearing); | |
4092 | LGSTRING_SET_RBEARING (gstr, metrics.rbearing); | |
4093 | LGSTRING_SET_ASCENT (gstr, metrics.ascent); | |
4094 | LGSTRING_SET_DESCENT (gstr, metrics.descent); | |
4095 | for (k = i; i < j; i++) | |
e8912e41 KH |
4096 | { |
4097 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
4098 | ||
4099 | LGLYPH_SET_FROM (g, LGLYPH_FROM (g) - this_from); | |
95d0a340 | 4100 | LGLYPH_SET_TO (g, LGLYPH_TO (g) - this_from); |
e8912e41 KH |
4101 | LGSTRING_SET_GLYPH (gstr, i - k, LGSTRING_GLYPH (gstring, i)); |
4102 | } | |
b2937119 KH |
4103 | from = make_number (start + this_from); |
4104 | to = make_number (start + this_to); | |
4105 | if (NILP (string)) | |
4106 | Fcompose_region_internal (from, to, gstr, Qnil); | |
4107 | else | |
4108 | Fcompose_string_internal (string, from, to, gstr, Qnil); | |
4109 | } | |
1701724c | 4110 | else |
b2937119 | 4111 | i = j; |
10d16101 | 4112 | } |
1701724c | 4113 | |
14065d35 | 4114 | return to; |
c2f5bfd6 KH |
4115 | } |
4116 | ||
6a3dadd2 KH |
4117 | #if 0 |
4118 | ||
733fd013 KH |
4119 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
4120 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. | |
51c01100 | 4121 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4122 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4123 | where |
4124 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4125 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4126 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4127 | |
4128 | If LANGYS is nil, the default langsys is selected. | |
4129 | ||
51c01100 JB |
4130 | The features are applied in the order they appear in the list. The |
4131 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4132 | list, and the remaining features are ignored. For instance, (vatu |
4133 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4134 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4135 | |
4136 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4137 | the glyph-string GSTRING-IN. |
e80e09b4 | 4138 | |
51c01100 | 4139 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4140 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4141 | this case, the value is the number of produced glyphs. | |
4142 | ||
4143 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4144 | the value is 0. | |
4145 | ||
51c01100 | 4146 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4147 | produced in GSTRING-OUT, and the value is nil. |
4148 | ||
4149 | See the documentation of `font-make-gstring' for the format of | |
4150 | glyph-string. */) | |
733fd013 KH |
4151 | (otf_features, gstring_in, from, to, gstring_out, index) |
4152 | Lisp_Object otf_features, gstring_in, from, to, gstring_out, index; | |
e80e09b4 KH |
4153 | { |
4154 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4155 | Lisp_Object val; |
4156 | struct font *font; | |
e80e09b4 KH |
4157 | int len, num; |
4158 | ||
733fd013 | 4159 | check_otf_features (otf_features); |
35027d0c KH |
4160 | CHECK_FONT_OBJECT (font_object); |
4161 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4162 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4163 | error ("Font backend %s can't drive OpenType GSUB table", |
4164 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4165 | CHECK_CONS (otf_features); |
4166 | CHECK_SYMBOL (XCAR (otf_features)); | |
4167 | val = XCDR (otf_features); | |
4168 | CHECK_SYMBOL (XCAR (val)); | |
4169 | val = XCDR (otf_features); | |
4170 | if (! NILP (val)) | |
4171 | CHECK_CONS (val); | |
e80e09b4 KH |
4172 | len = check_gstring (gstring_in); |
4173 | CHECK_VECTOR (gstring_out); | |
4174 | CHECK_NATNUM (from); | |
4175 | CHECK_NATNUM (to); | |
4176 | CHECK_NATNUM (index); | |
4177 | ||
4178 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4179 | args_out_of_range_3 (from, to, make_number (len)); | |
4180 | if (XINT (index) >= ASIZE (gstring_out)) | |
4181 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4182 | num = font->driver->otf_drive (font, otf_features, |
4183 | gstring_in, XINT (from), XINT (to), | |
4184 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4185 | if (num < 0) |
4186 | return Qnil; | |
4187 | return make_number (num); | |
4188 | } | |
4189 | ||
e80e09b4 KH |
4190 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
4191 | 3, 3, 0, | |
4192 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4193 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4194 | in this format: |
4195 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4196 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4197 | |
4198 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4199 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4200 | character code corresponding to the glyph or nil if there's no | |
4201 | corresponding character. */) | |
733fd013 KH |
4202 | (font_object, character, otf_features) |
4203 | Lisp_Object font_object, character, otf_features; | |
e80e09b4 KH |
4204 | { |
4205 | struct font *font; | |
4206 | Lisp_Object gstring_in, gstring_out, g; | |
4207 | Lisp_Object alternates; | |
4208 | int i, num; | |
4209 | ||
4210 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4211 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4212 | error ("Font backend %s can't drive OpenType GSUB table", |
4213 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4214 | CHECK_CHARACTER (character); |
733fd013 | 4215 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4216 | |
4217 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4218 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4219 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4220 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4221 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4222 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4223 | gstring_out = Ffont_make_gstring (font_object, |
4224 | make_number (ASIZE (gstring_out) * 2)); | |
4225 | alternates = Qnil; | |
4226 | for (i = 0; i < num; i++) | |
4227 | { | |
4228 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4229 | int c = LGLYPH_CHAR (g); |
4230 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4231 | |
4232 | alternates = Fcons (Fcons (make_number (code), | |
4233 | c > 0 ? make_number (c) : Qnil), | |
4234 | alternates); | |
4235 | } | |
4236 | return Fnreverse (alternates); | |
4237 | } | |
6a3dadd2 | 4238 | #endif /* 0 */ |
c2f5bfd6 KH |
4239 | |
4240 | #ifdef FONT_DEBUG | |
4241 | ||
4242 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4243 | doc: /* Open FONT-ENTITY. */) | |
4244 | (font_entity, size, frame) | |
4245 | Lisp_Object font_entity; | |
4246 | Lisp_Object size; | |
4247 | Lisp_Object frame; | |
4248 | { | |
4249 | int isize; | |
4250 | ||
4251 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4252 | if (NILP (frame)) |
4253 | frame = selected_frame; | |
4254 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4255 | |
35027d0c KH |
4256 | if (NILP (size)) |
4257 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4258 | else | |
4259 | { | |
4260 | CHECK_NUMBER_OR_FLOAT (size); | |
4261 | if (FLOATP (size)) | |
4262 | isize = POINT_TO_PIXEL (- isize, XFRAME (frame)->resy); | |
4263 | else | |
4264 | isize = XINT (size); | |
4265 | if (isize == 0) | |
4266 | isize = 120; | |
4267 | } | |
c2f5bfd6 KH |
4268 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4269 | } | |
4270 | ||
4271 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4272 | doc: /* Close FONT-OBJECT. */) | |
4273 | (font_object, frame) | |
4274 | Lisp_Object font_object, frame; | |
4275 | { | |
4276 | CHECK_FONT_OBJECT (font_object); | |
4277 | if (NILP (frame)) | |
4278 | frame = selected_frame; | |
4279 | CHECK_LIVE_FRAME (frame); | |
4280 | font_close_object (XFRAME (frame), font_object); | |
4281 | return Qnil; | |
4282 | } | |
4283 | ||
4284 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4285 | doc: /* Return information about FONT-OBJECT. |
4286 | The value is a vector: | |
4287 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4288 | CAPABILITY ] |
e80e09b4 KH |
4289 | |
4290 | NAME is a string of the font name (or nil if the font backend doesn't | |
4291 | provide a name). | |
4292 | ||
4293 | FILENAME is a string of the font file (or nil if the font backend | |
4294 | doesn't provide a file name). | |
4295 | ||
4296 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4297 | ||
027a33c0 | 4298 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4299 | |
4300 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4301 | pixels. |
e80e09b4 | 4302 | |
e0708580 KH |
4303 | CAPABILITY is a list whose first element is a symbol representing the |
4304 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4305 | remaining elements describe the details of the font capability. |
e0708580 KH |
4306 | |
4307 | If the font is OpenType font, the form of the list is | |
4308 | \(opentype GSUB GPOS) | |
4309 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4310 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4311 | lists of the format: | |
4312 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4313 | ||
4314 | If the font is not OpenType font, currently the length of the form is | |
4315 | one. | |
e80e09b4 KH |
4316 | |
4317 | SCRIPT is a symbol representing OpenType script tag. | |
4318 | ||
4319 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4320 | representing the default langsys. | |
4321 | ||
51c01100 | 4322 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4323 | |
51c01100 | 4324 | If the font is not OpenType font, CAPABILITY is nil. */) |
c2f5bfd6 KH |
4325 | (font_object) |
4326 | Lisp_Object font_object; | |
4327 | { | |
4328 | struct font *font; | |
4329 | Lisp_Object val; | |
4330 | ||
4331 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4332 | ||
4333 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4334 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4335 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4336 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4337 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4338 | ASET (val, 4, make_number (font->ascent)); |
4339 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4340 | ASET (val, 6, make_number (font->space_width)); |
4341 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4342 | if (font->driver->otf_capability) |
e0708580 | 4343 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4344 | return val; |
4345 | } | |
4346 | ||
4347 | DEFUN ("get-font-glyphs", Fget_font_glyphs, Sget_font_glyphs, 2, 2, 0, | |
4348 | doc: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING. | |
4349 | Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */) | |
4350 | (font_object, string) | |
4351 | Lisp_Object font_object, string; | |
4352 | { | |
4353 | struct font *font; | |
4354 | int i, len; | |
4355 | Lisp_Object vec; | |
4356 | ||
4357 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4358 | CHECK_STRING (string); | |
4359 | len = SCHARS (string); | |
4360 | vec = Fmake_vector (make_number (len), Qnil); | |
4361 | for (i = 0; i < len; i++) | |
4362 | { | |
4363 | Lisp_Object ch = Faref (string, make_number (i)); | |
4364 | Lisp_Object val; | |
4365 | int c = XINT (ch); | |
4366 | unsigned code; | |
2930d117 | 4367 | EMACS_INT cod; |
c2f5bfd6 KH |
4368 | struct font_metrics metrics; |
4369 | ||
2930d117 | 4370 | cod = code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4371 | if (code == FONT_INVALID_CODE) |
4372 | continue; | |
4373 | val = Fmake_vector (make_number (6), Qnil); | |
2930d117 | 4374 | if (cod <= MOST_POSITIVE_FIXNUM) |
c2f5bfd6 KH |
4375 | ASET (val, 0, make_number (code)); |
4376 | else | |
4377 | ASET (val, 0, Fcons (make_number (code >> 16), | |
4378 | make_number (code & 0xFFFF))); | |
51c01100 | 4379 | font->driver->text_extents (font, &code, 1, &metrics); |
c2f5bfd6 KH |
4380 | ASET (val, 1, make_number (metrics.lbearing)); |
4381 | ASET (val, 2, make_number (metrics.rbearing)); | |
4382 | ASET (val, 3, make_number (metrics.width)); | |
4383 | ASET (val, 4, make_number (metrics.ascent)); | |
4384 | ASET (val, 5, make_number (metrics.descent)); | |
4385 | ASET (vec, i, val); | |
4386 | } | |
4387 | return vec; | |
4388 | } | |
4389 | ||
ec6fe57c | 4390 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4391 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c KH |
4392 | FONT is a font-spec, font-entity, or font-object. */) |
4393 | (spec, font) | |
4394 | Lisp_Object spec, font; | |
4395 | { | |
4396 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4397 | CHECK_FONT (font); |
ec6fe57c KH |
4398 | |
4399 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4400 | } | |
4401 | ||
1701724c | 4402 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4403 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4404 | Optional second arg WINDOW, if non-nil, is a window displaying |
4405 | the current buffer. It defaults to the currently selected window. */) | |
1701724c KH |
4406 | (position, window, string) |
4407 | Lisp_Object position, window, string; | |
10d16101 KH |
4408 | { |
4409 | struct window *w; | |
e3ee0340 | 4410 | EMACS_INT pos; |
10d16101 | 4411 | |
1701724c KH |
4412 | if (NILP (string)) |
4413 | { | |
4414 | CHECK_NUMBER_COERCE_MARKER (position); | |
4415 | pos = XINT (position); | |
4416 | if (pos < BEGV || pos >= ZV) | |
4417 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4418 | } |
4419 | else | |
4420 | { | |
1701724c KH |
4421 | CHECK_NUMBER (position); |
4422 | CHECK_STRING (string); | |
4423 | pos = XINT (position); | |
4424 | if (pos < 0 || pos >= SCHARS (string)) | |
4425 | args_out_of_range (string, position); | |
1701724c | 4426 | } |
10d16101 KH |
4427 | if (NILP (window)) |
4428 | window = selected_window; | |
4429 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4430 | w = XWINDOW (window); |
10d16101 | 4431 | |
40fb53d6 | 4432 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4433 | } |
4434 | ||
c2f5bfd6 KH |
4435 | #if 0 |
4436 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4437 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4438 | The value is a number of glyphs drawn. | |
4439 | Type C-l to recover what previously shown. */) | |
4440 | (font_object, string) | |
4441 | Lisp_Object font_object, string; | |
4442 | { | |
4443 | Lisp_Object frame = selected_frame; | |
4444 | FRAME_PTR f = XFRAME (frame); | |
4445 | struct font *font; | |
4446 | struct face *face; | |
4447 | int i, len, width; | |
4448 | unsigned *code; | |
4449 | ||
4450 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4451 | CHECK_STRING (string); | |
4452 | len = SCHARS (string); | |
4453 | code = alloca (sizeof (unsigned) * len); | |
4454 | for (i = 0; i < len; i++) | |
4455 | { | |
4456 | Lisp_Object ch = Faref (string, make_number (i)); | |
4457 | Lisp_Object val; | |
4458 | int c = XINT (ch); | |
4459 | ||
4460 | code[i] = font->driver->encode_char (font, c); | |
4461 | if (code[i] == FONT_INVALID_CODE) | |
4462 | break; | |
4463 | } | |
4464 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4465 | face->fontp = font; | |
4466 | if (font->driver->prepare_face) | |
4467 | font->driver->prepare_face (f, face); | |
4468 | width = font->driver->text_extents (font, code, i, NULL); | |
4469 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4470 | if (font->driver->done_face) | |
4471 | font->driver->done_face (f, face); | |
4472 | face->fontp = NULL; | |
4473 | return make_number (len); | |
4474 | } | |
4475 | #endif | |
4476 | ||
4477 | #endif /* FONT_DEBUG */ | |
4478 | ||
a266686a KH |
4479 | #ifdef HAVE_WINDOW_SYSTEM |
4480 | ||
72606e45 KH |
4481 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4482 | doc: /* Return information about a font named NAME on frame FRAME. | |
4483 | If FRAME is omitted or nil, use the selected frame. | |
4484 | The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE, | |
4485 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, | |
4486 | where | |
4487 | OPENED-NAME is the name used for opening the font, | |
4488 | FULL-NAME is the full name of the font, | |
4489 | SIZE is the maximum bound width of the font, | |
4490 | HEIGHT is the height of the font, | |
4491 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, | |
4492 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4493 | how to compose characters. | |
4494 | If the named font is not yet loaded, return nil. */) | |
4495 | (name, frame) | |
4496 | Lisp_Object name, frame; | |
4497 | { | |
4498 | FRAME_PTR f; | |
4499 | struct font *font; | |
4500 | Lisp_Object info; | |
4501 | Lisp_Object font_object; | |
4502 | ||
4503 | (*check_window_system_func) (); | |
4504 | ||
4505 | if (! FONTP (name)) | |
4506 | CHECK_STRING (name); | |
4507 | if (NILP (frame)) | |
4508 | frame = selected_frame; | |
4509 | CHECK_LIVE_FRAME (frame); | |
4510 | f = XFRAME (frame); | |
4511 | ||
4512 | if (STRINGP (name)) | |
4513 | { | |
4514 | int fontset = fs_query_fontset (name, 0); | |
4515 | ||
4516 | if (fontset >= 0) | |
4517 | name = fontset_ascii (fontset); | |
4518 | font_object = font_open_by_name (f, (char *) SDATA (name)); | |
4519 | } | |
4520 | else if (FONT_OBJECT_P (name)) | |
4521 | font_object = name; | |
4522 | else if (FONT_ENTITY_P (name)) | |
4523 | font_object = font_open_entity (f, name, 0); | |
4524 | else | |
4525 | { | |
4526 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4527 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4528 | ||
4529 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4530 | } | |
4531 | if (NILP (font_object)) | |
4532 | return Qnil; | |
4533 | font = XFONT_OBJECT (font_object); | |
4534 | ||
4535 | info = Fmake_vector (make_number (7), Qnil); | |
4536 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
4537 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_NAME_INDEX); | |
4538 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); | |
4539 | XVECTOR (info)->contents[3] = make_number (font->height); | |
4540 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
4541 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
4542 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
4543 | ||
4544 | #if 0 | |
4545 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4546 | close it now. Perhaps, we should manage font-objects | |
4547 | by `reference-count'. */ | |
4548 | font_close_object (f, font_object); | |
4549 | #endif | |
4550 | return info; | |
4551 | } | |
a266686a | 4552 | #endif |
72606e45 | 4553 | |
c2f5bfd6 | 4554 | \f |
d0ab1ebe KH |
4555 | #define BUILD_STYLE_TABLE(TBL) \ |
4556 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4557 | ||
4558 | static Lisp_Object | |
4559 | build_style_table (entry, nelement) | |
4560 | struct table_entry *entry; | |
4561 | int nelement; | |
4562 | { | |
4563 | int i, j; | |
4564 | Lisp_Object table, elt; | |
17ab8f5d | 4565 | |
d0ab1ebe KH |
4566 | table = Fmake_vector (make_number (nelement), Qnil); |
4567 | for (i = 0; i < nelement; i++) | |
4568 | { | |
4569 | for (j = 0; entry[i].names[j]; j++); | |
4570 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4571 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4572 | for (j = 0; entry[i].names[j]; j++) | |
17ab8f5d | 4573 | ASET (elt, j + 1, intern (entry[i].names[j])); |
d0ab1ebe KH |
4574 | ASET (table, i, elt); |
4575 | } | |
4576 | return table; | |
4577 | } | |
4578 | ||
4579 | static Lisp_Object Vfont_log; | |
4580 | static int font_log_env_checked; | |
4581 | ||
4582 | void | |
4583 | font_add_log (action, arg, result) | |
4584 | char *action; | |
4585 | Lisp_Object arg, result; | |
4586 | { | |
4587 | Lisp_Object tail, val; | |
4588 | int i; | |
4589 | ||
4590 | if (! font_log_env_checked) | |
4591 | { | |
4592 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
4593 | font_log_env_checked = 1; | |
4594 | } | |
4595 | if (EQ (Vfont_log, Qt)) | |
4596 | return; | |
4597 | if (FONTP (arg)) | |
4598 | arg = Ffont_xlfd_name (arg, Qt); | |
4599 | if (FONTP (result)) | |
4600 | result = Ffont_xlfd_name (result, Qt); | |
4601 | else if (CONSP (result)) | |
4602 | { | |
4603 | result = Fcopy_sequence (result); | |
4604 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
4605 | { | |
4606 | val = XCAR (tail); | |
4607 | if (FONTP (val)) | |
4608 | val = Ffont_xlfd_name (val, Qt); | |
4609 | XSETCAR (tail, val); | |
4610 | } | |
4611 | } | |
4612 | else if (VECTORP (result)) | |
4613 | { | |
4614 | result = Fcopy_sequence (result); | |
4615 | for (i = 0; i < ASIZE (result); i++) | |
4616 | { | |
4617 | val = AREF (result, i); | |
4618 | if (FONTP (val)) | |
4619 | val = Ffont_xlfd_name (val, Qt); | |
4620 | ASET (result, i, val); | |
4621 | } | |
4622 | } | |
4623 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
4624 | } | |
4625 | ||
c2f5bfd6 KH |
4626 | extern void syms_of_ftfont P_ (()); |
4627 | extern void syms_of_xfont P_ (()); | |
4628 | extern void syms_of_xftfont P_ (()); | |
4629 | extern void syms_of_ftxfont P_ (()); | |
4630 | extern void syms_of_bdffont P_ (()); | |
4631 | extern void syms_of_w32font P_ (()); | |
4632 | extern void syms_of_atmfont P_ (()); | |
4633 | ||
4634 | void | |
4635 | syms_of_font () | |
4636 | { | |
4007dd1c KH |
4637 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
4638 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
4639 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
4640 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
4641 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
4642 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 4643 | |
1701724c KH |
4644 | staticpro (&font_charset_alist); |
4645 | font_charset_alist = Qnil; | |
4646 | ||
35027d0c KH |
4647 | DEFSYM (Qfont_spec, "font-spec"); |
4648 | DEFSYM (Qfont_entity, "font-entity"); | |
4649 | DEFSYM (Qfont_object, "font-object"); | |
4650 | ||
e0708580 | 4651 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 4652 | |
9e1bb909 | 4653 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
4654 | DEFSYM (Qiso8859_1, "iso8859-1"); |
4655 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
4656 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 4657 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 4658 | |
c2f5bfd6 | 4659 | DEFSYM (QCotf, ":otf"); |
35027d0c | 4660 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 4661 | DEFSYM (QCscript, ":script"); |
4c496d0d | 4662 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
4663 | |
4664 | DEFSYM (QCfoundry, ":foundry"); | |
4665 | DEFSYM (QCadstyle, ":adstyle"); | |
4666 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
4667 | DEFSYM (QCspacing, ":spacing"); |
4668 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 4669 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
4670 | DEFSYM (QCavgwidth, ":avgwidth"); |
4671 | DEFSYM (QCfont_entity, ":font-entity"); | |
4672 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 4673 | |
ec6fe57c KH |
4674 | DEFSYM (Qc, "c"); |
4675 | DEFSYM (Qm, "m"); | |
4676 | DEFSYM (Qp, "p"); | |
4677 | DEFSYM (Qd, "d"); | |
4678 | ||
c2f5bfd6 KH |
4679 | staticpro (&null_vector); |
4680 | null_vector = Fmake_vector (make_number (0), Qnil); | |
4681 | ||
4682 | staticpro (&scratch_font_spec); | |
4683 | scratch_font_spec = Ffont_spec (0, NULL); | |
4684 | staticpro (&scratch_font_prefer); | |
4685 | scratch_font_prefer = Ffont_spec (0, NULL); | |
4686 | ||
6a3dadd2 | 4687 | #if 0 |
733fd013 KH |
4688 | #ifdef HAVE_LIBOTF |
4689 | staticpro (&otf_list); | |
4690 | otf_list = Qnil; | |
6a3dadd2 KH |
4691 | #endif /* HAVE_LIBOTF */ |
4692 | #endif /* 0 */ | |
733fd013 | 4693 | |
c2f5bfd6 KH |
4694 | defsubr (&Sfontp); |
4695 | defsubr (&Sfont_spec); | |
4696 | defsubr (&Sfont_get); | |
4697 | defsubr (&Sfont_put); | |
4698 | defsubr (&Slist_fonts); | |
35027d0c | 4699 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
4700 | defsubr (&Sfind_font); |
4701 | defsubr (&Sfont_xlfd_name); | |
4702 | defsubr (&Sclear_font_cache); | |
c2f5bfd6 KH |
4703 | defsubr (&Sfont_make_gstring); |
4704 | defsubr (&Sfont_fill_gstring); | |
1701724c | 4705 | defsubr (&Sfont_shape_text); |
6a3dadd2 | 4706 | #if 0 |
733fd013 | 4707 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 4708 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 4709 | #endif /* 0 */ |
c2f5bfd6 KH |
4710 | |
4711 | #ifdef FONT_DEBUG | |
4712 | defsubr (&Sopen_font); | |
4713 | defsubr (&Sclose_font); | |
4714 | defsubr (&Squery_font); | |
4715 | defsubr (&Sget_font_glyphs); | |
ec6fe57c | 4716 | defsubr (&Sfont_match_p); |
10d16101 | 4717 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
4718 | #if 0 |
4719 | defsubr (&Sdraw_string); | |
4720 | #endif | |
4721 | #endif /* FONT_DEBUG */ | |
a266686a | 4722 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 4723 | defsubr (&Sfont_info); |
a266686a | 4724 | #endif |
c2f5bfd6 | 4725 | |
819e81df KH |
4726 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, |
4727 | doc: /* | |
4728 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
4729 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
4730 | where ENCODING is a charset or a char-table, | |
4731 | and REPERTORY is a charset, a char-table, or nil. | |
4732 | ||
027a33c0 | 4733 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
4734 | \(REGEXP . ENCODING). |
4735 | ||
4736 | ENCODING is for converting a character to a glyph code of the font. | |
4737 | If ENCODING is a charset, encoding a character by the charset gives | |
4738 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
4739 | the table by a character gives the corresponding glyph code. | |
4740 | ||
4741 | REPERTORY specifies a repertory of characters supported by the font. | |
4742 | If REPERTORY is a charset, all characters beloging to the charset are | |
4743 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 4744 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
4745 | gets the repertory information by an opened font and ENCODING. */); |
4746 | Vfont_encoding_alist = Qnil; | |
4747 | ||
d0ab1ebe KH |
4748 | DEFVAR_LISP_NOPRO ("font-weight-table", &Vfont_weight_table, |
4749 | doc: /* Vector of valid font weight values. | |
4750 | Each element has the form: | |
4751 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 4752 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe KH |
4753 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
4754 | ||
4755 | DEFVAR_LISP_NOPRO ("font-slant-table", &Vfont_slant_table, | |
4756 | doc: /* Vector of font slant symbols vs the corresponding numeric values. | |
17ab8f5d | 4757 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe KH |
4758 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
4759 | ||
4760 | DEFVAR_LISP_NOPRO ("font-width-table", &Vfont_width_table, | |
4761 | doc: /* Alist of font width symbols vs the corresponding numeric values. | |
17ab8f5d | 4762 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe KH |
4763 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
4764 | ||
4765 | staticpro (&font_style_table); | |
4766 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
4767 | ASET (font_style_table, 0, Vfont_weight_table); | |
4768 | ASET (font_style_table, 1, Vfont_slant_table); | |
4769 | ASET (font_style_table, 2, Vfont_width_table); | |
4770 | ||
4771 | DEFVAR_LISP ("font-log", &Vfont_log, doc: /* | |
4772 | *Logging list of font related actions and results. | |
4773 | The value t means to suppress the logging. | |
4774 | The initial value is set to nil if the environment variable | |
4775 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
4776 | Vfont_log = Qnil; | |
4777 | ||
819e81df | 4778 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 4779 | #ifdef HAVE_FREETYPE |
35027d0c | 4780 | syms_of_ftfont (); |
c2f5bfd6 | 4781 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
4782 | syms_of_xfont (); |
4783 | syms_of_ftxfont (); | |
c2f5bfd6 | 4784 | #ifdef HAVE_XFT |
35027d0c | 4785 | syms_of_xftfont (); |
c2f5bfd6 KH |
4786 | #endif /* HAVE_XFT */ |
4787 | #endif /* HAVE_X_WINDOWS */ | |
4788 | #else /* not HAVE_FREETYPE */ | |
4789 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 4790 | syms_of_xfont (); |
c2f5bfd6 KH |
4791 | #endif /* HAVE_X_WINDOWS */ |
4792 | #endif /* not HAVE_FREETYPE */ | |
4793 | #ifdef HAVE_BDFFONT | |
35027d0c | 4794 | syms_of_bdffont (); |
c2f5bfd6 KH |
4795 | #endif /* HAVE_BDFFONT */ |
4796 | #ifdef WINDOWSNT | |
35027d0c | 4797 | syms_of_w32font (); |
c2f5bfd6 KH |
4798 | #endif /* WINDOWSNT */ |
4799 | #ifdef MAC_OS | |
35027d0c | 4800 | syms_of_atmfont (); |
c2f5bfd6 | 4801 | #endif /* MAC_OS */ |
819e81df | 4802 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 4803 | } |
885b7d09 MB |
4804 | |
4805 | /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846 | |
4806 | (do not change this comment) */ |