Commit | Line | Data |
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c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
e9bffc61 | 2 | |
ab422c4d | 3 | Copyright (C) 2006-2013 Free Software Foundation, Inc. |
95df8112 GM |
4 | Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 |
5 | National Institute of Advanced Industrial Science and Technology (AIST) | |
6 | Registration Number H13PRO009 | |
c2f5bfd6 KH |
7 | |
8 | This file is part of GNU Emacs. | |
9 | ||
9ec0b715 | 10 | GNU Emacs is free software: you can redistribute it and/or modify |
c2f5bfd6 | 11 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. | |
c2f5bfd6 KH |
14 | |
15 | GNU Emacs is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 21 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c2f5bfd6 KH |
22 | |
23 | #include <config.h> | |
6e1a67fb | 24 | #include <float.h> |
c2f5bfd6 | 25 | #include <stdio.h> |
c2f5bfd6 | 26 | |
620f13b0 PE |
27 | #include <c-ctype.h> |
28 | ||
c2f5bfd6 | 29 | #include "lisp.h" |
e5560ff7 | 30 | #include "character.h" |
c2f5bfd6 KH |
31 | #include "buffer.h" |
32 | #include "frame.h" | |
10d16101 | 33 | #include "window.h" |
c2f5bfd6 KH |
34 | #include "dispextern.h" |
35 | #include "charset.h" | |
c2f5bfd6 KH |
36 | #include "composite.h" |
37 | #include "fontset.h" | |
38 | #include "font.h" | |
39 | ||
17a2cbbd DC |
40 | #ifdef HAVE_WINDOW_SYSTEM |
41 | #include TERM_HEADER | |
42 | #endif /* HAVE_WINDOW_SYSTEM */ | |
edfda783 | 43 | |
7990b61a | 44 | Lisp_Object Qopentype; |
e0708580 | 45 | |
35027d0c | 46 | /* Important character set strings. */ |
9e1bb909 | 47 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 48 | |
edfda783 | 49 | #define DEFAULT_ENCODING Qiso8859_1 |
edfda783 | 50 | |
071132a9 KH |
51 | /* Unicode category `Cf'. */ |
52 | static Lisp_Object QCf; | |
53 | ||
d0ab1ebe | 54 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ |
c2f5bfd6 KH |
55 | static Lisp_Object font_style_table; |
56 | ||
d0ab1ebe KH |
57 | /* Structure used for tables mapping weight, slant, and width numeric |
58 | values and their names. */ | |
59 | ||
60 | struct table_entry | |
61 | { | |
62 | int numeric; | |
63 | /* The first one is a valid name as a face attribute. | |
64 | The second one (if any) is a typical name in XLFD field. */ | |
5e2327cf | 65 | const char *names[5]; |
d0ab1ebe KH |
66 | }; |
67 | ||
68 | /* Table of weight numeric values and their names. This table must be | |
69 | sorted by numeric values in ascending order. */ | |
70 | ||
5e2327cf | 71 | static const struct table_entry weight_table[] = |
d0ab1ebe KH |
72 | { |
73 | { 0, { "thin" }}, | |
74 | { 20, { "ultra-light", "ultralight" }}, | |
75 | { 40, { "extra-light", "extralight" }}, | |
76 | { 50, { "light" }}, | |
77 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
c2694a06 | 78 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
79 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, |
80 | { 200, { "bold" }}, | |
81 | { 205, { "extra-bold", "extrabold" }}, | |
82 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
83 | }; | |
84 | ||
85 | /* Table of slant numeric values and their names. This table must be | |
86 | sorted by numeric values in ascending order. */ | |
87 | ||
5e2327cf | 88 | static const struct table_entry slant_table[] = |
d0ab1ebe KH |
89 | { |
90 | { 0, { "reverse-oblique", "ro" }}, | |
91 | { 10, { "reverse-italic", "ri" }}, | |
c2694a06 | 92 | { 100, { "normal", "r", "unspecified" }}, |
d0ab1ebe KH |
93 | { 200, { "italic" ,"i", "ot" }}, |
94 | { 210, { "oblique", "o" }} | |
95 | }; | |
96 | ||
97 | /* Table of width numeric values and their names. This table must be | |
98 | sorted by numeric values in ascending order. */ | |
99 | ||
5e2327cf | 100 | static const struct table_entry width_table[] = |
d0ab1ebe KH |
101 | { |
102 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
103 | { 63, { "extra-condensed", "extracondensed" }}, | |
104 | { 75, { "condensed", "compressed", "narrow" }}, | |
105 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
c2694a06 | 106 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
107 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, |
108 | { 125, { "expanded" }}, | |
109 | { 150, { "extra-expanded", "extraexpanded" }}, | |
110 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
111 | }; | |
112 | ||
2f7c71a1 AS |
113 | Lisp_Object QCfoundry; |
114 | static Lisp_Object QCadstyle, QCregistry; | |
c2f5bfd6 | 115 | /* Symbols representing keys of font extra info. */ |
35027d0c | 116 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
955cbe7b PE |
117 | Lisp_Object QCantialias, QCfont_entity; |
118 | static Lisp_Object QCfc_unknown_spec; | |
ec6fe57c | 119 | /* Symbols representing values of font spacing property. */ |
955cbe7b PE |
120 | static Lisp_Object Qc, Qm, Qd; |
121 | Lisp_Object Qp; | |
cf702558 CY |
122 | /* Special ADSTYLE properties to avoid fonts used for Latin |
123 | characters; used in xfont.c and ftfont.c. */ | |
124 | Lisp_Object Qja, Qko; | |
c2f5bfd6 | 125 | |
955cbe7b | 126 | static Lisp_Object QCuser_spec; |
42707278 | 127 | |
56dd2d86 | 128 | /* Alist of font registry symbols and the corresponding charset |
1701724c KH |
129 | information. The information is retrieved from |
130 | Vfont_encoding_alist on demand. | |
131 | ||
132 | Eash element has the form: | |
133 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
134 | or | |
135 | (REGISTRY . nil) | |
136 | ||
137 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
138 | encodes a character code to a glyph code of a font, and | |
139 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
140 | character is supported by a font. | |
141 | ||
142 | The latter form means that the information for REGISTRY couldn't be | |
143 | retrieved. */ | |
144 | static Lisp_Object font_charset_alist; | |
145 | ||
f697fff0 KH |
146 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
147 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
148 | here. */ |
149 | static struct font_driver_list *font_driver_list; | |
150 | ||
35027d0c KH |
151 | \f |
152 | ||
fe3c5669 | 153 | /* Creators of font-related Lisp object. */ |
35027d0c | 154 | |
2f7c71a1 | 155 | static Lisp_Object |
971de7fb | 156 | font_make_spec (void) |
35027d0c KH |
157 | { |
158 | Lisp_Object font_spec; | |
159 | struct font_spec *spec | |
160 | = ((struct font_spec *) | |
161 | allocate_pseudovector (VECSIZE (struct font_spec), | |
162 | FONT_SPEC_MAX, PVEC_FONT)); | |
163 | XSETFONT (font_spec, spec); | |
164 | return font_spec; | |
165 | } | |
166 | ||
167 | Lisp_Object | |
971de7fb | 168 | font_make_entity (void) |
35027d0c KH |
169 | { |
170 | Lisp_Object font_entity; | |
171 | struct font_entity *entity | |
172 | = ((struct font_entity *) | |
173 | allocate_pseudovector (VECSIZE (struct font_entity), | |
174 | FONT_ENTITY_MAX, PVEC_FONT)); | |
175 | XSETFONT (font_entity, entity); | |
176 | return font_entity; | |
177 | } | |
178 | ||
51c13510 KH |
179 | /* Create a font-object whose structure size is SIZE. If ENTITY is |
180 | not nil, copy properties from ENTITY to the font-object. If | |
181 | PIXELSIZE is positive, set the `size' property to PIXELSIZE. */ | |
35027d0c | 182 | Lisp_Object |
971de7fb | 183 | font_make_object (int size, Lisp_Object entity, int pixelsize) |
35027d0c KH |
184 | { |
185 | Lisp_Object font_object; | |
186 | struct font *font | |
187 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
51c13510 KH |
188 | int i; |
189 | ||
35027d0c KH |
190 | XSETFONT (font_object, font); |
191 | ||
51c13510 KH |
192 | if (! NILP (entity)) |
193 | { | |
194 | for (i = 1; i < FONT_SPEC_MAX; i++) | |
195 | font->props[i] = AREF (entity, i); | |
196 | if (! NILP (AREF (entity, FONT_EXTRA_INDEX))) | |
197 | font->props[FONT_EXTRA_INDEX] | |
581e51e8 | 198 | = Fcopy_alist (AREF (entity, FONT_EXTRA_INDEX)); |
51c13510 KH |
199 | } |
200 | if (size > 0) | |
201 | font->props[FONT_SIZE_INDEX] = make_number (pixelsize); | |
35027d0c KH |
202 | return font_object; |
203 | } | |
204 | ||
205 | \f | |
206 | ||
a10c8269 DA |
207 | static int font_pixel_size (struct frame *f, Lisp_Object); |
208 | static Lisp_Object font_open_entity (struct frame *, Lisp_Object, int); | |
209 | static Lisp_Object font_matching_entity (struct frame *, Lisp_Object *, | |
f57e2426 | 210 | Lisp_Object); |
2f7c71a1 | 211 | static unsigned font_encode_char (Lisp_Object, int); |
c2f5bfd6 KH |
212 | |
213 | /* Number of registered font drivers. */ | |
214 | static int num_font_drivers; | |
215 | ||
35027d0c KH |
216 | |
217 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
a864ef14 PE |
218 | If STR is "*", return nil. If FORCE_SYMBOL, or if STR does not |
219 | consist entirely of one or more digits, return a symbol interned | |
220 | from STR. Otherwise, return an integer. */ | |
35027d0c KH |
221 | |
222 | Lisp_Object | |
a864ef14 | 223 | font_intern_prop (const char *str, ptrdiff_t len, bool force_symbol) |
35027d0c | 224 | { |
ccd6111c | 225 | ptrdiff_t i; |
d0ab1ebe | 226 | Lisp_Object tem; |
35027d0c | 227 | Lisp_Object obarray; |
d311d28c | 228 | ptrdiff_t nbytes, nchars; |
35027d0c KH |
229 | |
230 | if (len == 1 && *str == '*') | |
231 | return Qnil; | |
7216e43b | 232 | if (!force_symbol && 0 < len && '0' <= *str && *str <= '9') |
35027d0c KH |
233 | { |
234 | for (i = 1; i < len; i++) | |
da3f12b2 | 235 | if (! ('0' <= str[i] && str[i] <= '9')) |
35027d0c KH |
236 | break; |
237 | if (i == len) | |
ccd6111c | 238 | { |
da3f12b2 PE |
239 | EMACS_INT n; |
240 | ||
241 | i = 0; | |
242 | for (n = 0; (n += str[i++] - '0') <= MOST_POSITIVE_FIXNUM; n *= 10) | |
243 | { | |
244 | if (i == len) | |
245 | return make_number (n); | |
7216e43b | 246 | if (MOST_POSITIVE_FIXNUM / 10 < n) |
da3f12b2 PE |
247 | break; |
248 | } | |
249 | ||
250 | xsignal1 (Qoverflow_error, make_string (str, len)); | |
ccd6111c | 251 | } |
35027d0c KH |
252 | } |
253 | ||
e8df9267 DA |
254 | /* This code is similar to intern function from lread.c. */ |
255 | obarray = check_obarray (Vobarray); | |
72d36834 | 256 | parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes); |
e8df9267 DA |
257 | tem = oblookup (obarray, str, |
258 | (len == nchars || len != nbytes) ? len : nchars, len); | |
259 | ||
35027d0c KH |
260 | if (SYMBOLP (tem)) |
261 | return tem; | |
545312c2 KH |
262 | if (len == nchars || len != nbytes) |
263 | tem = make_unibyte_string (str, len); | |
264 | else | |
265 | tem = make_multibyte_string (str, nchars, len); | |
266 | return Fintern (tem, obarray); | |
35027d0c KH |
267 | } |
268 | ||
9331887d | 269 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 270 | |
9331887d | 271 | static int |
a10c8269 | 272 | font_pixel_size (struct frame *f, Lisp_Object spec) |
9331887d | 273 | { |
819e81df | 274 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
275 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
276 | double point_size; | |
35027d0c | 277 | int dpi, pixel_size; |
d0ab1ebe | 278 | Lisp_Object val; |
51c01100 | 279 | |
9331887d KH |
280 | if (INTEGERP (size)) |
281 | return XINT (size); | |
282 | if (NILP (size)) | |
819e81df | 283 | return 0; |
4e6a86c6 | 284 | eassert (FLOATP (size)); |
9331887d | 285 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
286 | val = AREF (spec, FONT_DPI_INDEX); |
287 | if (INTEGERP (val)) | |
17e28f6d | 288 | dpi = XINT (val); |
9331887d | 289 | else |
42143acd | 290 | dpi = FRAME_RES_Y (f); |
9331887d KH |
291 | pixel_size = POINT_TO_PIXEL (point_size, dpi); |
292 | return pixel_size; | |
819e81df KH |
293 | #else |
294 | return 1; | |
295 | #endif | |
9331887d KH |
296 | } |
297 | ||
c2f5bfd6 | 298 | |
35027d0c KH |
299 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
300 | font vector. If VAL is not valid (i.e. not registered in | |
301 | font_style_table), return -1 if NOERROR is zero, and return a | |
302 | proper index if NOERROR is nonzero. In that case, register VAL in | |
56dd2d86 | 303 | font_style_table if VAL is a symbol, and return the closest index if |
35027d0c | 304 | VAL is an integer. */ |
c2f5bfd6 | 305 | |
35027d0c | 306 | int |
a864ef14 PE |
307 | font_style_to_value (enum font_property_index prop, Lisp_Object val, |
308 | bool noerror) | |
c2f5bfd6 | 309 | { |
35027d0c | 310 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
c5e4379c AS |
311 | int len; |
312 | ||
313 | CHECK_VECTOR (table); | |
314 | len = ASIZE (table); | |
c2f5bfd6 | 315 | |
35027d0c | 316 | if (SYMBOLP (val)) |
c2f5bfd6 | 317 | { |
13a547c6 | 318 | int i, j; |
25a48bd0 | 319 | char *s; |
35027d0c KH |
320 | Lisp_Object args[2], elt; |
321 | ||
322 | /* At first try exact match. */ | |
323 | for (i = 0; i < len; i++) | |
c5e4379c AS |
324 | { |
325 | CHECK_VECTOR (AREF (table, i)); | |
326 | for (j = 1; j < ASIZE (AREF (table, i)); j++) | |
327 | if (EQ (val, AREF (AREF (table, i), j))) | |
328 | { | |
329 | CHECK_NUMBER (AREF (AREF (table, i), 0)); | |
330 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
331 | | (i << 4) | (j - 1)); | |
332 | } | |
333 | } | |
35027d0c | 334 | /* Try also with case-folding match. */ |
25a48bd0 | 335 | s = SSDATA (SYMBOL_NAME (val)); |
35027d0c | 336 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
337 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
338 | { | |
339 | elt = AREF (AREF (table, i), j); | |
25a48bd0 | 340 | if (xstrcasecmp (s, SSDATA (SYMBOL_NAME (elt))) == 0) |
c5e4379c AS |
341 | { |
342 | CHECK_NUMBER (AREF (AREF (table, i), 0)); | |
343 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
344 | | (i << 4) | (j - 1)); | |
345 | } | |
d0ab1ebe | 346 | } |
35027d0c KH |
347 | if (! noerror) |
348 | return -1; | |
4e6a86c6 | 349 | eassert (len < 255); |
c2694a06 | 350 | elt = Fmake_vector (make_number (2), make_number (100)); |
d0ab1ebe | 351 | ASET (elt, 1, val); |
35027d0c | 352 | args[0] = table; |
d0ab1ebe | 353 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 354 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
c2694a06 | 355 | return (100 << 8) | (i << 4); |
c2f5bfd6 | 356 | } |
35027d0c KH |
357 | else |
358 | { | |
d0ab1ebe | 359 | int i, last_n; |
d311d28c | 360 | EMACS_INT numeric = XINT (val); |
c2f5bfd6 | 361 | |
d0ab1ebe | 362 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 363 | { |
c5e4379c | 364 | int n; |
c2f5bfd6 | 365 | |
c5e4379c AS |
366 | CHECK_VECTOR (AREF (table, i)); |
367 | CHECK_NUMBER (AREF (AREF (table, i), 0)); | |
368 | n = XINT (AREF (AREF (table, i), 0)); | |
35027d0c | 369 | if (numeric == n) |
d0ab1ebe | 370 | return (n << 8) | (i << 4); |
35027d0c KH |
371 | if (numeric < n) |
372 | { | |
373 | if (! noerror) | |
374 | return -1; | |
d0ab1ebe KH |
375 | return ((i == 0 || n - numeric < numeric - last_n) |
376 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 377 | } |
35027d0c | 378 | last_n = n; |
35027d0c KH |
379 | } |
380 | if (! noerror) | |
381 | return -1; | |
d0ab1ebe | 382 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
383 | } |
384 | } | |
c2f5bfd6 KH |
385 | |
386 | Lisp_Object | |
a864ef14 PE |
387 | font_style_symbolic (Lisp_Object font, enum font_property_index prop, |
388 | bool for_face) | |
c2f5bfd6 | 389 | { |
3ef8c1b4 | 390 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
391 | Lisp_Object table, elt; |
392 | int i; | |
c2f5bfd6 | 393 | |
35027d0c KH |
394 | if (NILP (val)) |
395 | return Qnil; | |
396 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
c5e4379c | 397 | CHECK_VECTOR (table); |
d0ab1ebe | 398 | i = XINT (val) & 0xFF; |
4e6a86c6 | 399 | eassert (((i >> 4) & 0xF) < ASIZE (table)); |
d0ab1ebe | 400 | elt = AREF (table, ((i >> 4) & 0xF)); |
c5e4379c | 401 | CHECK_VECTOR (elt); |
4e6a86c6 | 402 | eassert ((i & 0xF) + 1 < ASIZE (elt)); |
c5e4379c AS |
403 | elt = (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
404 | CHECK_SYMBOL (elt); | |
405 | return elt; | |
6fe9826d JR |
406 | } |
407 | ||
819e81df KH |
408 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
409 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
410 | of the font. REPERTORY is a charset symbol or nil. */ | |
411 | ||
412 | Lisp_Object | |
971de7fb | 413 | find_font_encoding (Lisp_Object fontname) |
819e81df KH |
414 | { |
415 | Lisp_Object tail, elt; | |
416 | ||
417 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
418 | { | |
419 | elt = XCAR (tail); | |
420 | if (CONSP (elt) | |
421 | && STRINGP (XCAR (elt)) | |
422 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
423 | && (SYMBOLP (XCDR (elt)) | |
424 | ? CHARSETP (XCDR (elt)) | |
425 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
426 | return (XCDR (elt)); | |
427 | } | |
182ba28c | 428 | return Qnil; |
819e81df KH |
429 | } |
430 | ||
1701724c KH |
431 | /* Return encoding charset and repertory charset for REGISTRY in |
432 | ENCODING and REPERTORY correspondingly. If correct information for | |
433 | REGISTRY is available, return 0. Otherwise return -1. */ | |
434 | ||
435 | int | |
971de7fb | 436 | font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory) |
1701724c KH |
437 | { |
438 | Lisp_Object val; | |
439 | int encoding_id, repertory_id; | |
440 | ||
35027d0c | 441 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
442 | if (! NILP (val)) |
443 | { | |
444 | val = XCDR (val); | |
445 | if (NILP (val)) | |
446 | return -1; | |
447 | encoding_id = XINT (XCAR (val)); | |
448 | repertory_id = XINT (XCDR (val)); | |
449 | } | |
450 | else | |
451 | { | |
452 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
453 | if (SYMBOLP (val) && CHARSETP (val)) | |
454 | { | |
455 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
456 | } | |
457 | else if (CONSP (val)) | |
458 | { | |
459 | if (! CHARSETP (XCAR (val))) | |
460 | goto invalid_entry; | |
461 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
462 | if (NILP (XCDR (val))) | |
463 | repertory_id = -1; | |
464 | else | |
465 | { | |
466 | if (! CHARSETP (XCDR (val))) | |
467 | goto invalid_entry; | |
468 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
469 | } | |
51c01100 | 470 | } |
1701724c KH |
471 | else |
472 | goto invalid_entry; | |
473 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
474 | font_charset_alist | |
6c6f1994 | 475 | = nconc2 (font_charset_alist, list1 (Fcons (registry, val))); |
1701724c KH |
476 | } |
477 | ||
478 | if (encoding) | |
479 | *encoding = CHARSET_FROM_ID (encoding_id); | |
480 | if (repertory) | |
481 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
482 | return 0; | |
483 | ||
484 | invalid_entry: | |
485 | font_charset_alist | |
6c6f1994 | 486 | = nconc2 (font_charset_alist, list1 (Fcons (registry, Qnil))); |
1701724c KH |
487 | return -1; |
488 | } | |
489 | ||
c2f5bfd6 | 490 | \f |
56dd2d86 | 491 | /* Font property value validators. See the comment of |
45eb10fb KH |
492 | font_property_table for the meaning of the arguments. */ |
493 | ||
f57e2426 J |
494 | static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object); |
495 | static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object); | |
496 | static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object); | |
497 | static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object); | |
498 | static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object); | |
499 | static int get_font_prop_index (Lisp_Object); | |
c2f5bfd6 KH |
500 | |
501 | static Lisp_Object | |
971de7fb | 502 | font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
503 | { |
504 | if (STRINGP (val)) | |
35027d0c KH |
505 | val = Fintern (val, Qnil); |
506 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 507 | val = Qerror; |
35027d0c KH |
508 | else if (EQ (prop, QCregistry)) |
509 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
510 | return val; |
511 | } | |
512 | ||
35027d0c | 513 | |
c2f5bfd6 | 514 | static Lisp_Object |
971de7fb | 515 | font_prop_validate_style (Lisp_Object style, Lisp_Object val) |
c2f5bfd6 | 516 | { |
35027d0c KH |
517 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
518 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
519 | : FONT_WIDTH_INDEX); | |
35027d0c | 520 | if (INTEGERP (val)) |
c2f5bfd6 | 521 | { |
d311d28c | 522 | EMACS_INT n = XINT (val); |
c5e4379c | 523 | CHECK_VECTOR (AREF (font_style_table, prop - FONT_WEIGHT_INDEX)); |
64b900e3 | 524 | if (((n >> 4) & 0xF) |
35027d0c | 525 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
526 | val = Qerror; |
527 | else | |
528 | { | |
64b900e3 KH |
529 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
530 | ||
c5e4379c | 531 | CHECK_VECTOR (elt); |
64b900e3 KH |
532 | if ((n & 0xF) + 1 >= ASIZE (elt)) |
533 | val = Qerror; | |
c5e4379c AS |
534 | else |
535 | { | |
536 | CHECK_NUMBER (AREF (elt, 0)); | |
537 | if (XINT (AREF (elt, 0)) != (n >> 8)) | |
538 | val = Qerror; | |
539 | } | |
c2f5bfd6 KH |
540 | } |
541 | } | |
35027d0c KH |
542 | else if (SYMBOLP (val)) |
543 | { | |
544 | int n = font_style_to_value (prop, val, 0); | |
545 | ||
546 | val = n >= 0 ? make_number (n) : Qerror; | |
547 | } | |
548 | else | |
549 | val = Qerror; | |
c2f5bfd6 KH |
550 | return val; |
551 | } | |
552 | ||
553 | static Lisp_Object | |
971de7fb | 554 | font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
555 | { |
556 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
557 | ? val : Qerror); | |
558 | } | |
559 | ||
560 | static Lisp_Object | |
971de7fb | 561 | font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val) |
ec6fe57c KH |
562 | { |
563 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
564 | return val; | |
3692570f KH |
565 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
566 | { | |
567 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
568 | ||
569 | if (spacing == 'c' || spacing == 'C') | |
570 | return make_number (FONT_SPACING_CHARCELL); | |
571 | if (spacing == 'm' || spacing == 'M') | |
572 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 573 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
574 | return make_number (FONT_SPACING_PROPORTIONAL); |
575 | if (spacing == 'd' || spacing == 'D') | |
576 | return make_number (FONT_SPACING_DUAL); | |
577 | } | |
ec6fe57c KH |
578 | return Qerror; |
579 | } | |
580 | ||
1701724c | 581 | static Lisp_Object |
971de7fb | 582 | font_prop_validate_otf (Lisp_Object prop, Lisp_Object val) |
1701724c KH |
583 | { |
584 | Lisp_Object tail, tmp; | |
585 | int i; | |
586 | ||
587 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
588 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
589 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
590 | if (! CONSP (val)) | |
591 | return Qerror; | |
592 | if (! SYMBOLP (XCAR (val))) | |
593 | return Qerror; | |
594 | tail = XCDR (val); | |
595 | if (NILP (tail)) | |
596 | return val; | |
597 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
598 | return Qerror; | |
599 | for (i = 0; i < 2; i++) | |
600 | { | |
601 | tail = XCDR (tail); | |
602 | if (NILP (tail)) | |
603 | return val; | |
604 | if (! CONSP (tail)) | |
605 | return Qerror; | |
606 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
607 | if (! SYMBOLP (XCAR (tmp))) | |
608 | return Qerror; | |
609 | if (! NILP (tmp)) | |
610 | return Qerror; | |
611 | } | |
612 | return val; | |
613 | } | |
614 | ||
56dd2d86 | 615 | /* Structure of known font property keys and validator of the |
ec6fe57c | 616 | values. */ |
04bab72c | 617 | static const struct |
c2f5bfd6 | 618 | { |
ec6fe57c | 619 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 620 | Lisp_Object *key; |
45eb10fb KH |
621 | /* Function to validate PROP's value VAL, or NULL if any value is |
622 | ok. The value is VAL or its regularized value if VAL is valid, | |
623 | and Qerror if not. */ | |
c80e3b4a | 624 | Lisp_Object (*validator) (Lisp_Object prop, Lisp_Object val); |
ec6fe57c KH |
625 | } font_property_table[] = |
626 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
627 | { &QCfoundry, font_prop_validate_symbol }, |
628 | { &QCfamily, font_prop_validate_symbol }, | |
629 | { &QCadstyle, font_prop_validate_symbol }, | |
630 | { &QCregistry, font_prop_validate_symbol }, | |
631 | { &QCweight, font_prop_validate_style }, | |
632 | { &QCslant, font_prop_validate_style }, | |
633 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 634 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
635 | { &QCdpi, font_prop_validate_non_neg }, |
636 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
637 | { &QCavgwidth, font_prop_validate_non_neg }, |
638 | /* The order of the above entries must match with enum | |
639 | font_property_index. */ | |
640 | { &QClang, font_prop_validate_symbol }, | |
641 | { &QCscript, font_prop_validate_symbol }, | |
642 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
643 | }; |
644 | ||
45eb10fb | 645 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
646 | #define FONT_PROPERTY_TABLE_SIZE \ |
647 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
648 | ||
45eb10fb | 649 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 650 | already known property. */ |
45eb10fb | 651 | |
ec6fe57c | 652 | static int |
971de7fb | 653 | get_font_prop_index (Lisp_Object key) |
c2f5bfd6 | 654 | { |
35027d0c KH |
655 | int i; |
656 | ||
657 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
658 | if (EQ (key, *font_property_table[i].key)) | |
659 | return i; | |
ec6fe57c | 660 | return -1; |
c2f5bfd6 KH |
661 | } |
662 | ||
35027d0c KH |
663 | /* Validate the font property. The property key is specified by the |
664 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
665 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 666 | |
c2f5bfd6 | 667 | static Lisp_Object |
971de7fb | 668 | font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 669 | { |
35027d0c | 670 | Lisp_Object validated; |
c2f5bfd6 | 671 | |
1f09f444 KH |
672 | if (NILP (val)) |
673 | return val; | |
35027d0c KH |
674 | if (NILP (prop)) |
675 | prop = *font_property_table[idx].key; | |
676 | else | |
ec6fe57c | 677 | { |
35027d0c KH |
678 | idx = get_font_prop_index (prop); |
679 | if (idx < 0) | |
680 | return val; | |
ec6fe57c | 681 | } |
c80e3b4a | 682 | validated = (font_property_table[idx].validator) (prop, val); |
35027d0c KH |
683 | if (EQ (validated, Qerror)) |
684 | signal_error ("invalid font property", Fcons (prop, val)); | |
685 | return validated; | |
c2f5bfd6 | 686 | } |
51c01100 | 687 | |
35027d0c KH |
688 | |
689 | /* Store VAL as a value of extra font property PROP in FONT while | |
690 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 691 | |
01dbeb0b | 692 | Lisp_Object |
971de7fb | 693 | font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
9331887d KH |
694 | { |
695 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 696 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
697 | |
698 | if (NILP (slot)) | |
699 | { | |
35027d0c KH |
700 | Lisp_Object prev = Qnil; |
701 | ||
702 | while (CONSP (extra) | |
703 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
704 | prev = extra, extra = XCDR (extra); | |
581e51e8 | 705 | |
ce75f06e | 706 | if (NILP (prev)) |
581e51e8 | 707 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 708 | else |
581e51e8 | 709 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 710 | |
ec6fe57c | 711 | return val; |
9331887d | 712 | } |
9331887d | 713 | XSETCDR (slot, val); |
483670b5 KH |
714 | if (NILP (val)) |
715 | ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra)); | |
ec6fe57c | 716 | return val; |
9331887d KH |
717 | } |
718 | ||
c2f5bfd6 | 719 | \f |
266fee4f | 720 | /* Font name parser and unparser. */ |
c2f5bfd6 | 721 | |
8ea90aa3 | 722 | static int parse_matrix (const char *); |
f57e2426 | 723 | static int font_expand_wildcards (Lisp_Object *, int); |
984e7f30 | 724 | static int font_parse_name (char *, ptrdiff_t, Lisp_Object); |
c2f5bfd6 | 725 | |
ec6fe57c | 726 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
727 | enum xlfd_field_index |
728 | { | |
729 | XLFD_FOUNDRY_INDEX, | |
730 | XLFD_FAMILY_INDEX, | |
731 | XLFD_WEIGHT_INDEX, | |
732 | XLFD_SLANT_INDEX, | |
733 | XLFD_SWIDTH_INDEX, | |
734 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
735 | XLFD_PIXEL_INDEX, |
736 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
737 | XLFD_RESX_INDEX, |
738 | XLFD_RESY_INDEX, | |
739 | XLFD_SPACING_INDEX, | |
740 | XLFD_AVGWIDTH_INDEX, | |
741 | XLFD_REGISTRY_INDEX, | |
742 | XLFD_ENCODING_INDEX, | |
743 | XLFD_LAST_INDEX | |
744 | }; | |
745 | ||
ec6fe57c | 746 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
747 | enum xlfd_field_mask |
748 | { | |
749 | XLFD_FOUNDRY_MASK = 0x0001, | |
750 | XLFD_FAMILY_MASK = 0x0002, | |
751 | XLFD_WEIGHT_MASK = 0x0004, | |
752 | XLFD_SLANT_MASK = 0x0008, | |
753 | XLFD_SWIDTH_MASK = 0x0010, | |
754 | XLFD_ADSTYLE_MASK = 0x0020, | |
755 | XLFD_PIXEL_MASK = 0x0040, | |
756 | XLFD_POINT_MASK = 0x0080, | |
757 | XLFD_RESX_MASK = 0x0100, | |
758 | XLFD_RESY_MASK = 0x0200, | |
759 | XLFD_SPACING_MASK = 0x0400, | |
760 | XLFD_AVGWIDTH_MASK = 0x0800, | |
761 | XLFD_REGISTRY_MASK = 0x1000, | |
762 | XLFD_ENCODING_MASK = 0x2000 | |
763 | }; | |
764 | ||
765 | ||
56dd2d86 | 766 | /* Parse P pointing to the pixel/point size field of the form |
c2f5bfd6 KH |
767 | `[A B C D]' which specifies a transformation matrix: |
768 | ||
769 | A B 0 | |
770 | C D 0 | |
771 | 0 0 1 | |
772 | ||
773 | by which all glyphs of the font are transformed. The spec says | |
774 | that scalar value N for the pixel/point size is equivalent to: | |
775 | A = N * resx/resy, B = C = 0, D = N. | |
776 | ||
777 | Return the scalar value N if the form is valid. Otherwise return | |
778 | -1. */ | |
779 | ||
780 | static int | |
8ea90aa3 | 781 | parse_matrix (const char *p) |
c2f5bfd6 KH |
782 | { |
783 | double matrix[4]; | |
784 | char *end; | |
785 | int i; | |
786 | ||
787 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
788 | { | |
789 | if (*p == '~') | |
790 | matrix[i] = - strtod (p + 1, &end); | |
791 | else | |
792 | matrix[i] = strtod (p, &end); | |
793 | p = end; | |
794 | } | |
795 | return (i == 4 ? (int) matrix[3] : -1); | |
796 | } | |
797 | ||
4485a28e | 798 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
56dd2d86 | 799 | multiple fields to fill in all 14 XLFD fields while restricting a |
4485a28e KH |
800 | field position by its contents. */ |
801 | ||
ec6fe57c | 802 | static int |
971de7fb | 803 | font_expand_wildcards (Lisp_Object *field, int n) |
4485a28e KH |
804 | { |
805 | /* Copy of FIELD. */ | |
806 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
807 | /* Array of information about where this element can go. Nth | |
808 | element is for Nth element of FIELD. */ | |
809 | struct { | |
810 | /* Minimum possible field. */ | |
811 | int from; | |
09e80d9f | 812 | /* Maximum possible field. */ |
4485a28e KH |
813 | int to; |
814 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
815 | int mask; | |
816 | } range[XLFD_LAST_INDEX]; | |
817 | int i, j; | |
ec6fe57c | 818 | int range_from, range_to; |
4485a28e KH |
819 | unsigned range_mask; |
820 | ||
821 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
822 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
823 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 824 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 825 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
826 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
827 | ||
828 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
829 | field. The value is shifted to left one bit by one in the | |
830 | following loop. */ | |
831 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
832 | range_mask = (range_mask << 1) | 1; | |
833 | ||
ec6fe57c | 834 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
c80e3b4a | 835 | position-based restriction for FIELD[I]. */ |
ec6fe57c KH |
836 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; |
837 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 838 | { |
4485a28e KH |
839 | Lisp_Object val = field[i]; |
840 | ||
841 | tmp[i] = val; | |
842 | if (NILP (val)) | |
843 | { | |
844 | /* Wildcard. */ | |
845 | range[i].from = range_from; | |
846 | range[i].to = range_to; | |
847 | range[i].mask = range_mask; | |
848 | } | |
849 | else | |
850 | { | |
851 | /* The triplet FROM, TO, and MASK is a value-based | |
c80e3b4a | 852 | restriction for FIELD[I]. */ |
4485a28e KH |
853 | int from, to; |
854 | unsigned mask; | |
855 | ||
856 | if (INTEGERP (val)) | |
857 | { | |
d311d28c | 858 | EMACS_INT numeric = XINT (val); |
4485a28e | 859 | |
ef18374f KH |
860 | if (i + 1 == n) |
861 | from = to = XLFD_ENCODING_INDEX, | |
862 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
863 | else if (numeric == 0) |
864 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
865 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
866 | else if (numeric <= 48) |
867 | from = to = XLFD_PIXEL_INDEX, | |
868 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 869 | else |
ec6fe57c | 870 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
871 | mask = XLFD_LARGENUM_MASK; |
872 | } | |
35027d0c | 873 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
874 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
875 | mask = XLFD_NULL_MASK; | |
876 | else if (i == 0) | |
877 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
878 | else if (i + 1 == n) | |
879 | { | |
880 | Lisp_Object name = SYMBOL_NAME (val); | |
881 | ||
882 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
883 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
884 | mask = XLFD_REGENC_MASK; | |
885 | else | |
886 | from = to = XLFD_ENCODING_INDEX, | |
887 | mask = XLFD_ENCODING_MASK; | |
888 | } | |
ef18374f KH |
889 | else if (range_from <= XLFD_WEIGHT_INDEX |
890 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 891 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 892 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
893 | else if (range_from <= XLFD_SLANT_INDEX |
894 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 895 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 896 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
897 | else if (range_from <= XLFD_SWIDTH_INDEX |
898 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 899 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
900 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
901 | else | |
902 | { | |
ec6fe57c | 903 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
904 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
905 | else | |
906 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
907 | mask = XLFD_SYMBOL_MASK; | |
908 | } | |
909 | ||
910 | /* Merge position-based and value-based restrictions. */ | |
911 | mask &= range_mask; | |
912 | while (from < range_from) | |
913 | mask &= ~(1 << from++); | |
914 | while (from < 14 && ! (mask & (1 << from))) | |
915 | from++; | |
916 | while (to > range_to) | |
917 | mask &= ~(1 << to--); | |
918 | while (to >= 0 && ! (mask & (1 << to))) | |
919 | to--; | |
920 | if (from > to) | |
921 | return -1; | |
922 | range[i].from = from; | |
923 | range[i].to = to; | |
924 | range[i].mask = mask; | |
925 | ||
926 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
927 | { |
928 | /* The range is narrowed by value-based restrictions. | |
929 | Reflect it to the other fields. */ | |
930 | ||
931 | /* Following fields should be after FROM. */ | |
932 | range_from = from; | |
933 | /* Preceding fields should be before TO. */ | |
934 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
935 | { | |
936 | /* Check FROM for non-wildcard field. */ | |
937 | if (! NILP (tmp[j]) && range[j].from < from) | |
938 | { | |
939 | while (range[j].from < from) | |
940 | range[j].mask &= ~(1 << range[j].from++); | |
941 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
942 | from++; | |
943 | range[j].from = from; | |
944 | } | |
945 | else | |
946 | from = range[j].from; | |
947 | if (range[j].to > to) | |
948 | { | |
949 | while (range[j].to > to) | |
950 | range[j].mask &= ~(1 << range[j].to--); | |
951 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
952 | to--; | |
953 | range[j].to = to; | |
954 | } | |
955 | else | |
956 | to = range[j].to; | |
957 | if (from > to) | |
958 | return -1; | |
959 | } | |
960 | } | |
4485a28e KH |
961 | } |
962 | } | |
963 | ||
c5e87d10 | 964 | /* Decide all fields from restrictions in RANGE. */ |
4485a28e KH |
965 | for (i = j = 0; i < n ; i++) |
966 | { | |
967 | if (j < range[i].from) | |
968 | { | |
969 | if (i == 0 || ! NILP (tmp[i - 1])) | |
970 | /* None of TMP[X] corresponds to Jth field. */ | |
971 | return -1; | |
972 | for (; j < range[i].from; j++) | |
973 | field[j] = Qnil; | |
974 | } | |
975 | field[j++] = tmp[i]; | |
976 | } | |
977 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
978 | return -1; | |
979 | for (; j < XLFD_LAST_INDEX; j++) | |
980 | field[j] = Qnil; | |
981 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
982 | field[XLFD_ENCODING_INDEX] | |
983 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
984 | return 0; | |
985 | } | |
986 | ||
43a1d19b | 987 | |
ef18374f | 988 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
989 | (font-spec or font-entity). Size property of FONT is set as |
990 | follows: | |
991 | specified XLFD fields FONT property | |
992 | --------------------- ------------- | |
993 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
994 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
995 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
996 | ||
ec6fe57c | 997 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 998 | |
ec6fe57c KH |
999 | FONT is usually a font-spec, but when this function is called from |
1000 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 1001 | a fully specified XLFD. */ |
c2f5bfd6 KH |
1002 | |
1003 | int | |
984e7f30 | 1004 | font_parse_xlfd (char *name, ptrdiff_t len, Lisp_Object font) |
c2f5bfd6 | 1005 | { |
35027d0c | 1006 | int i, j, n; |
cf23b845 | 1007 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 1008 | Lisp_Object val; |
4485a28e | 1009 | char *p; |
c2f5bfd6 | 1010 | |
e3928081 | 1011 | if (len > 255 || !len) |
c2f5bfd6 KH |
1012 | /* Maximum XLFD name length is 255. */ |
1013 | return -1; | |
ec6fe57c | 1014 | /* Accept "*-.." as a fully specified XLFD. */ |
e3928081 | 1015 | if (name[0] == '*' && (len == 1 || name[1] == '-')) |
ec6fe57c KH |
1016 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; |
1017 | else | |
1018 | i = 0; | |
1019 | for (p = name + i; *p; p++) | |
35027d0c KH |
1020 | if (*p == '-') |
1021 | { | |
1022 | f[i++] = p + 1; | |
1023 | if (i == XLFD_LAST_INDEX) | |
1024 | break; | |
1025 | } | |
1026 | f[i] = name + len; | |
c2f5bfd6 | 1027 | |
2f286d4f KH |
1028 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1029 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1030 | |
ec6fe57c | 1031 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1032 | { |
35027d0c | 1033 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1034 | int pixel_size; |
1035 | ||
2f286d4f KH |
1036 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1037 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1038 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1039 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1040 | { |
2f286d4f | 1041 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1042 | if (! NILP (val)) |
4485a28e | 1043 | { |
2f286d4f | 1044 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1045 | return -1; |
1046 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1047 | } |
1048 | } | |
2f286d4f | 1049 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1050 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1051 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1052 | else | |
1053 | ASET (font, FONT_REGISTRY_INDEX, | |
1054 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1055 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1056 | 1)); | |
ec6fe57c KH |
1057 | p = f[XLFD_PIXEL_INDEX]; |
1058 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1059 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1060 | else |
1061 | { | |
35027d0c KH |
1062 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1063 | if (INTEGERP (val)) | |
ec6fe57c | 1064 | ASET (font, FONT_SIZE_INDEX, val); |
b57d9029 KH |
1065 | else if (FONT_ENTITY_P (font)) |
1066 | return -1; | |
ec6fe57c KH |
1067 | else |
1068 | { | |
1069 | double point_size = -1; | |
1070 | ||
4e6a86c6 | 1071 | eassert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1072 | p = f[XLFD_POINT_INDEX]; |
1073 | if (*p == '[') | |
1074 | point_size = parse_matrix (p); | |
620f13b0 | 1075 | else if (c_isdigit (*p)) |
ec6fe57c KH |
1076 | point_size = atoi (p), point_size /= 10; |
1077 | if (point_size >= 0) | |
1078 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1079 | } |
1080 | } | |
ec6fe57c | 1081 | |
087048cd KH |
1082 | val = INTERN_FIELD (XLFD_RESY_INDEX); |
1083 | if (! NILP (val) && ! INTEGERP (val)) | |
1084 | return -1; | |
1085 | ASET (font, FONT_DPI_INDEX, val); | |
35027d0c KH |
1086 | val = INTERN_FIELD (XLFD_SPACING_INDEX); |
1087 | if (! NILP (val)) | |
ec6fe57c | 1088 | { |
35027d0c KH |
1089 | val = font_prop_validate_spacing (QCspacing, val); |
1090 | if (! INTEGERP (val)) | |
1091 | return -1; | |
1092 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1093 | } |
ec6fe57c KH |
1094 | p = f[XLFD_AVGWIDTH_INDEX]; |
1095 | if (*p == '~') | |
1096 | p++; | |
087048cd KH |
1097 | val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0); |
1098 | if (! NILP (val) && ! INTEGERP (val)) | |
1099 | return -1; | |
1100 | ASET (font, FONT_AVGWIDTH_INDEX, val); | |
4485a28e KH |
1101 | } |
1102 | else | |
c2f5bfd6 | 1103 | { |
a864ef14 | 1104 | bool wild_card_found = 0; |
ec6fe57c | 1105 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1106 | |
35027d0c KH |
1107 | if (FONT_ENTITY_P (font)) |
1108 | return -1; | |
ec6fe57c | 1109 | for (j = 0; j < i; j++) |
4485a28e | 1110 | { |
ec6fe57c | 1111 | if (*f[j] == '*') |
4485a28e | 1112 | { |
ec6fe57c KH |
1113 | if (f[j][1] && f[j][1] != '-') |
1114 | return -1; | |
1115 | prop[j] = Qnil; | |
1116 | wild_card_found = 1; | |
1117 | } | |
ec6fe57c | 1118 | else if (j + 1 < i) |
35027d0c | 1119 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1120 | else |
2f286d4f | 1121 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1122 | } |
1123 | if (! wild_card_found) | |
c2f5bfd6 | 1124 | return -1; |
ec6fe57c | 1125 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1126 | return -1; |
ec6fe57c | 1127 | |
35027d0c KH |
1128 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1129 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1130 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1131 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1132 | if (! NILP (prop[i])) |
35027d0c KH |
1133 | { |
1134 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1135 | return -1; | |
1136 | ASET (font, j, make_number (n)); | |
1137 | } | |
1138 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1139 | val = prop[XLFD_REGISTRY_INDEX]; |
1140 | if (NILP (val)) | |
c2f5bfd6 | 1141 | { |
ec6fe57c KH |
1142 | val = prop[XLFD_ENCODING_INDEX]; |
1143 | if (! NILP (val)) | |
35027d0c | 1144 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1145 | } |
ec6fe57c | 1146 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1147 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1148 | else |
35027d0c KH |
1149 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1150 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1151 | if (! NILP (val)) |
35027d0c | 1152 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1153 | |
1154 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1155 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1156 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1157 | { |
ec6fe57c | 1158 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1159 | |
ec6fe57c KH |
1160 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1161 | } | |
c2f5bfd6 | 1162 | |
35027d0c KH |
1163 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1164 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1165 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1166 | { | |
1167 | val = font_prop_validate_spacing (QCspacing, | |
1168 | prop[XLFD_SPACING_INDEX]); | |
1169 | if (! INTEGERP (val)) | |
1170 | return -1; | |
1171 | ASET (font, FONT_SPACING_INDEX, val); | |
1172 | } | |
ec6fe57c | 1173 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1174 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1175 | } |
1176 | ||
ec6fe57c | 1177 | return 0; |
c2f5bfd6 KH |
1178 | } |
1179 | ||
1180 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1181 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1182 | 0, use PIXEL_SIZE instead. */ | |
1183 | ||
d923b542 | 1184 | ptrdiff_t |
971de7fb | 1185 | font_unparse_xlfd (Lisp_Object font, int pixel_size, char *name, int nbytes) |
c2f5bfd6 | 1186 | { |
e663c700 | 1187 | char *p; |
00dc3ead | 1188 | const char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 | 1189 | Lisp_Object val; |
c21721cc | 1190 | int i, j, len; |
c2f5bfd6 | 1191 | |
4e6a86c6 | 1192 | eassert (FONTP (font)); |
c2f5bfd6 KH |
1193 | |
1194 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1195 | i++, j++) | |
1196 | { | |
1197 | if (i == FONT_ADSTYLE_INDEX) | |
1198 | j = XLFD_ADSTYLE_INDEX; | |
1199 | else if (i == FONT_REGISTRY_INDEX) | |
1200 | j = XLFD_REGISTRY_INDEX; | |
1201 | val = AREF (font, i); | |
1202 | if (NILP (val)) | |
1bb1d99b KH |
1203 | { |
1204 | if (j == XLFD_REGISTRY_INDEX) | |
c21721cc | 1205 | f[j] = "*-*"; |
1bb1d99b | 1206 | else |
c21721cc | 1207 | f[j] = "*"; |
1bb1d99b | 1208 | } |
c2f5bfd6 KH |
1209 | else |
1210 | { | |
1211 | if (SYMBOLP (val)) | |
1212 | val = SYMBOL_NAME (val); | |
1bb1d99b | 1213 | if (j == XLFD_REGISTRY_INDEX |
51b59d79 | 1214 | && ! strchr (SSDATA (val), '-')) |
1bb1d99b KH |
1215 | { |
1216 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
c21721cc PE |
1217 | ptrdiff_t alloc = SBYTES (val) + 4; |
1218 | if (nbytes <= alloc) | |
1219 | return -1; | |
1220 | f[j] = p = alloca (alloc); | |
1221 | sprintf (p, "%s%s-*", SDATA (val), | |
31ff141c | 1222 | &"*"[SDATA (val)[SBYTES (val) - 1] == '*']); |
1bb1d99b KH |
1223 | } |
1224 | else | |
c21721cc | 1225 | f[j] = SSDATA (val); |
c2f5bfd6 KH |
1226 | } |
1227 | } | |
1228 | ||
1229 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1230 | i++, j++) | |
1231 | { | |
35027d0c | 1232 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 | 1233 | if (NILP (val)) |
c21721cc | 1234 | f[j] = "*"; |
c2f5bfd6 KH |
1235 | else |
1236 | { | |
e1bf05c1 KH |
1237 | int c, k, l; |
1238 | ptrdiff_t alloc; | |
1239 | ||
35027d0c | 1240 | val = SYMBOL_NAME (val); |
e1bf05c1 KH |
1241 | alloc = SBYTES (val) + 1; |
1242 | if (nbytes <= alloc) | |
1243 | return -1; | |
00dc3ead | 1244 | f[j] = p = alloca (alloc); |
e1bf05c1 KH |
1245 | /* Copy the name while excluding '-', '?', ',', and '"'. */ |
1246 | for (k = l = 0; k < alloc; k++) | |
1247 | { | |
1248 | c = SREF (val, k); | |
1249 | if (c != '-' && c != '?' && c != ',' && c != '"') | |
00dc3ead | 1250 | p[l++] = c; |
e1bf05c1 | 1251 | } |
c2f5bfd6 KH |
1252 | } |
1253 | } | |
1254 | ||
1255 | val = AREF (font, FONT_SIZE_INDEX); | |
4e6a86c6 | 1256 | eassert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1257 | if (INTEGERP (val)) |
1258 | { | |
c21721cc PE |
1259 | EMACS_INT v = XINT (val); |
1260 | if (v <= 0) | |
1261 | v = pixel_size; | |
1262 | if (v > 0) | |
81aefea4 | 1263 | { |
c21721cc PE |
1264 | f[XLFD_PIXEL_INDEX] = p = |
1265 | alloca (sizeof "-*" + INT_STRLEN_BOUND (EMACS_INT)); | |
1266 | sprintf (p, "%"pI"d-*", v); | |
81aefea4 SM |
1267 | } |
1268 | else | |
c21721cc | 1269 | f[XLFD_PIXEL_INDEX] = "*-*"; |
c2f5bfd6 KH |
1270 | } |
1271 | else if (FLOATP (val)) | |
1272 | { | |
c21721cc PE |
1273 | double v = XFLOAT_DATA (val) * 10; |
1274 | f[XLFD_PIXEL_INDEX] = p = alloca (sizeof "*-" + 1 + DBL_MAX_10_EXP + 1); | |
1275 | sprintf (p, "*-%.0f", v); | |
c2f5bfd6 KH |
1276 | } |
1277 | else | |
c21721cc | 1278 | f[XLFD_PIXEL_INDEX] = "*-*"; |
ec6fe57c | 1279 | |
35027d0c | 1280 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1281 | { |
c21721cc PE |
1282 | EMACS_INT v = XINT (AREF (font, FONT_DPI_INDEX)); |
1283 | f[XLFD_RESX_INDEX] = p = | |
1284 | alloca (sizeof "-" + 2 * INT_STRLEN_BOUND (EMACS_INT)); | |
1285 | sprintf (p, "%"pI"d-%"pI"d", v, v); | |
c2f5bfd6 KH |
1286 | } |
1287 | else | |
c21721cc | 1288 | f[XLFD_RESX_INDEX] = "*-*"; |
35027d0c | 1289 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
ec6fe57c | 1290 | { |
c21721cc | 1291 | EMACS_INT spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1292 | |
35027d0c KH |
1293 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1294 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1295 | : spacing <= FONT_SPACING_MONO ? "m" | |
1296 | : "c"); | |
ec6fe57c | 1297 | } |
35027d0c | 1298 | else |
c21721cc | 1299 | f[XLFD_SPACING_INDEX] = "*"; |
35027d0c KH |
1300 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
1301 | { | |
c21721cc PE |
1302 | f[XLFD_AVGWIDTH_INDEX] = p = alloca (INT_BUFSIZE_BOUND (EMACS_INT)); |
1303 | sprintf (p, "%"pI"d", XINT (AREF (font, FONT_AVGWIDTH_INDEX))); | |
35027d0c KH |
1304 | } |
1305 | else | |
c21721cc | 1306 | f[XLFD_AVGWIDTH_INDEX] = "*"; |
8666506e PE |
1307 | len = snprintf (name, nbytes, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
1308 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], | |
1309 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
1310 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], | |
1311 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1312 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1313 | f[XLFD_REGISTRY_INDEX]); | |
1314 | return len < nbytes ? len : -1; | |
c2f5bfd6 KH |
1315 | } |
1316 | ||
8c102d5b CY |
1317 | /* Parse NAME (null terminated) and store information in FONT |
1318 | (font-spec or font-entity). NAME is supplied in either the | |
1319 | Fontconfig or GTK font name format. If NAME is successfully | |
1320 | parsed, return 0. Otherwise return -1. | |
1321 | ||
1322 | The fontconfig format is | |
1323 | ||
1324 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1325 | ||
1326 | The GTK format is | |
1327 | ||
1328 | FAMILY [PROPS...] [SIZE] | |
1329 | ||
1330 | This function tries to guess which format it is. */ | |
ef18374f | 1331 | |
2f7c71a1 | 1332 | static int |
984e7f30 | 1333 | font_parse_fcname (char *name, ptrdiff_t len, Lisp_Object font) |
ef18374f | 1334 | { |
8c102d5b CY |
1335 | char *p, *q; |
1336 | char *size_beg = NULL, *size_end = NULL; | |
1337 | char *props_beg = NULL, *family_end = NULL; | |
ef18374f | 1338 | |
ec6fe57c KH |
1339 | if (len == 0) |
1340 | return -1; | |
8c102d5b CY |
1341 | |
1342 | for (p = name; *p; p++) | |
ef18374f | 1343 | { |
8c102d5b CY |
1344 | if (*p == '\\' && p[1]) |
1345 | p++; | |
1346 | else if (*p == ':') | |
ef18374f | 1347 | { |
59facb78 | 1348 | props_beg = family_end = p; |
8c102d5b CY |
1349 | break; |
1350 | } | |
1351 | else if (*p == '-') | |
1352 | { | |
a864ef14 | 1353 | bool decimal = 0, size_found = 1; |
8c102d5b | 1354 | for (q = p + 1; *q && *q != ':'; q++) |
620f13b0 | 1355 | if (! c_isdigit (*q)) |
8c102d5b | 1356 | { |
b1868a1a CY |
1357 | if (*q != '.' || decimal) |
1358 | { | |
1359 | size_found = 0; | |
1360 | break; | |
1361 | } | |
1362 | decimal = 1; | |
8c102d5b CY |
1363 | } |
1364 | if (size_found) | |
1365 | { | |
1366 | family_end = p; | |
1367 | size_beg = p + 1; | |
1368 | size_end = q; | |
1369 | break; | |
1370 | } | |
ef18374f | 1371 | } |
ef18374f | 1372 | } |
9331887d | 1373 | |
8c102d5b CY |
1374 | if (family_end) |
1375 | { | |
637fa988 JD |
1376 | Lisp_Object extra_props = Qnil; |
1377 | ||
8c102d5b CY |
1378 | /* A fontconfig name with size and/or property data. */ |
1379 | if (family_end > name) | |
1380 | { | |
1381 | Lisp_Object family; | |
1382 | family = font_intern_prop (name, family_end - name, 1); | |
1383 | ASET (font, FONT_FAMILY_INDEX, family); | |
1384 | } | |
1385 | if (size_beg) | |
1386 | { | |
1387 | double point_size = strtod (size_beg, &size_end); | |
1388 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1389 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1390 | props_beg = size_end; |
8c102d5b CY |
1391 | } |
1392 | if (props_beg) | |
1393 | { | |
d26424c5 | 1394 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1395 | Lisp_Object val; |
8c102d5b | 1396 | |
59facb78 | 1397 | for (p = props_beg; *p; p = q) |
8c102d5b | 1398 | { |
8c102d5b | 1399 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1400 | if (*q != '=') |
1401 | { | |
1402 | /* Must be an enumerated value. */ | |
b5b8c9e5 | 1403 | ptrdiff_t word_len; |
59facb78 CY |
1404 | p = p + 1; |
1405 | word_len = q - p; | |
8c102d5b | 1406 | val = font_intern_prop (p, q - p, 1); |
9277a69d | 1407 | |
4ec88040 AS |
1408 | #define PROP_MATCH(STR) (word_len == strlen (STR) \ |
1409 | && memcmp (p, STR, strlen (STR)) == 0) | |
1410 | ||
1411 | if (PROP_MATCH ("light") | |
1412 | || PROP_MATCH ("medium") | |
1413 | || PROP_MATCH ("demibold") | |
1414 | || PROP_MATCH ("bold") | |
1415 | || PROP_MATCH ("black")) | |
8c102d5b | 1416 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); |
4ec88040 AS |
1417 | else if (PROP_MATCH ("roman") |
1418 | || PROP_MATCH ("italic") | |
1419 | || PROP_MATCH ("oblique")) | |
8c102d5b | 1420 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); |
4ec88040 | 1421 | else if (PROP_MATCH ("charcell")) |
8c102d5b CY |
1422 | ASET (font, FONT_SPACING_INDEX, |
1423 | make_number (FONT_SPACING_CHARCELL)); | |
4ec88040 | 1424 | else if (PROP_MATCH ("mono")) |
8c102d5b CY |
1425 | ASET (font, FONT_SPACING_INDEX, |
1426 | make_number (FONT_SPACING_MONO)); | |
4ec88040 | 1427 | else if (PROP_MATCH ("proportional")) |
8c102d5b CY |
1428 | ASET (font, FONT_SPACING_INDEX, |
1429 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1430 | #undef PROP_MATCH |
8c102d5b | 1431 | } |
59facb78 | 1432 | else |
8c102d5b | 1433 | { |
59facb78 | 1434 | /* KEY=VAL pairs */ |
8c102d5b | 1435 | Lisp_Object key; |
59facb78 | 1436 | int prop; |
51c01100 | 1437 | |
59facb78 | 1438 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1439 | prop = FONT_SIZE_INDEX; |
1440 | else | |
1441 | { | |
1442 | key = font_intern_prop (p, q - p, 1); | |
1443 | prop = get_font_prop_index (key); | |
1444 | } | |
77989187 | 1445 | |
8c102d5b CY |
1446 | p = q + 1; |
1447 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1448 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1449 | |
d26424c5 KH |
1450 | if (prop >= FONT_FOUNDRY_INDEX |
1451 | && prop < FONT_EXTRA_INDEX) | |
637fa988 | 1452 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); |
ce75f06e | 1453 | else |
637fa988 JD |
1454 | { |
1455 | extra_props = nconc2 (extra_props, | |
6c6f1994 | 1456 | list1 (Fcons (key, val))); |
637fa988 | 1457 | } |
8c102d5b | 1458 | } |
d26424c5 | 1459 | p = q; |
8c102d5b | 1460 | } |
8c102d5b | 1461 | } |
637fa988 JD |
1462 | |
1463 | if (! NILP (extra_props)) | |
1464 | { | |
1465 | struct font_driver_list *driver_list = font_driver_list; | |
1466 | for ( ; driver_list; driver_list = driver_list->next) | |
1467 | if (driver_list->driver->filter_properties) | |
1468 | (*driver_list->driver->filter_properties) (font, extra_props); | |
1469 | } | |
ce75f06e | 1470 | |
8c102d5b CY |
1471 | } |
1472 | else | |
ef18374f | 1473 | { |
8c102d5b CY |
1474 | /* Either a fontconfig-style name with no size and property |
1475 | data, or a GTK-style name. */ | |
6608a7d8 CY |
1476 | Lisp_Object weight = Qnil, slant = Qnil; |
1477 | Lisp_Object width = Qnil, size = Qnil; | |
1478 | char *word_start; | |
b5b8c9e5 | 1479 | ptrdiff_t word_len; |
6608a7d8 CY |
1480 | |
1481 | /* Scan backwards from the end, looking for a size. */ | |
1482 | for (p = name + len - 1; p >= name; p--) | |
620f13b0 | 1483 | if (!c_isdigit (*p)) |
6608a7d8 CY |
1484 | break; |
1485 | ||
1486 | if ((p < name + len - 1) && ((p + 1 == name) || *p == ' ')) | |
1487 | /* Found a font size. */ | |
1488 | size = make_float (strtod (p + 1, NULL)); | |
1489 | else | |
1490 | p = name + len; | |
ef18374f | 1491 | |
6608a7d8 CY |
1492 | /* Now P points to the termination of the string, sans size. |
1493 | Scan backwards, looking for font properties. */ | |
1494 | for (; p > name; p = q) | |
ef18374f | 1495 | { |
6608a7d8 | 1496 | for (q = p - 1; q >= name; q--) |
9331887d | 1497 | { |
6608a7d8 CY |
1498 | if (q > name && *(q-1) == '\\') |
1499 | --q; /* Skip quoting backslashes. */ | |
1500 | else if (*q == ' ') | |
1501 | break; | |
027a33c0 | 1502 | } |
8c102d5b | 1503 | |
6608a7d8 CY |
1504 | word_start = q + 1; |
1505 | word_len = p - word_start; | |
8c102d5b | 1506 | |
4ec88040 AS |
1507 | #define PROP_MATCH(STR) \ |
1508 | (word_len == strlen (STR) \ | |
1509 | && memcmp (word_start, STR, strlen (STR)) == 0) | |
1510 | #define PROP_SAVE(VAR, STR) \ | |
1511 | (VAR = NILP (VAR) ? font_intern_prop (STR, strlen (STR), 1) : VAR) | |
1512 | ||
1513 | if (PROP_MATCH ("Ultra-Light")) | |
1514 | PROP_SAVE (weight, "ultra-light"); | |
1515 | else if (PROP_MATCH ("Light")) | |
1516 | PROP_SAVE (weight, "light"); | |
1517 | else if (PROP_MATCH ("Book")) | |
1518 | PROP_SAVE (weight, "book"); | |
1519 | else if (PROP_MATCH ("Medium")) | |
1520 | PROP_SAVE (weight, "medium"); | |
1521 | else if (PROP_MATCH ("Semi-Bold")) | |
1522 | PROP_SAVE (weight, "semi-bold"); | |
1523 | else if (PROP_MATCH ("Bold")) | |
1524 | PROP_SAVE (weight, "bold"); | |
1525 | else if (PROP_MATCH ("Italic")) | |
1526 | PROP_SAVE (slant, "italic"); | |
1527 | else if (PROP_MATCH ("Oblique")) | |
1528 | PROP_SAVE (slant, "oblique"); | |
1529 | else if (PROP_MATCH ("Semi-Condensed")) | |
1530 | PROP_SAVE (width, "semi-condensed"); | |
1531 | else if (PROP_MATCH ("Condensed")) | |
1532 | PROP_SAVE (width, "condensed"); | |
6608a7d8 CY |
1533 | /* An unknown word must be part of the font name. */ |
1534 | else | |
fe69a722 | 1535 | { |
6608a7d8 CY |
1536 | family_end = p; |
1537 | break; | |
fe69a722 | 1538 | } |
ef18374f | 1539 | } |
8c102d5b | 1540 | #undef PROP_MATCH |
372fb76b | 1541 | #undef PROP_SAVE |
9ba6fd41 | 1542 | |
8c102d5b | 1543 | if (family_end) |
6608a7d8 CY |
1544 | ASET (font, FONT_FAMILY_INDEX, |
1545 | font_intern_prop (name, family_end - name, 1)); | |
1546 | if (!NILP (size)) | |
1547 | ASET (font, FONT_SIZE_INDEX, size); | |
1548 | if (!NILP (weight)) | |
1549 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, weight); | |
1550 | if (!NILP (slant)) | |
1551 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, slant); | |
1552 | if (!NILP (width)) | |
1553 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, width); | |
8c102d5b | 1554 | } |
17ab8f5d | 1555 | |
9331887d | 1556 | return 0; |
ef18374f KH |
1557 | } |
1558 | ||
1559 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1560 | NAME (NBYTES length), and return the name length. If | |
1561 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1562 | ||
1563 | int | |
09d93395 | 1564 | font_unparse_fcname (Lisp_Object font, int pixel_size, char *name, int nbytes) |
ef18374f | 1565 | { |
b1868a1a | 1566 | Lisp_Object family, foundry; |
c21721cc | 1567 | Lisp_Object val; |
ec6fe57c | 1568 | int point_size; |
b5b8c9e5 | 1569 | int i; |
ef18374f | 1570 | char *p; |
c21721cc | 1571 | char *lim; |
a9262bb8 | 1572 | Lisp_Object styles[3]; |
675e2c69 | 1573 | const char *style_names[3] = { "weight", "slant", "width" }; |
ef18374f | 1574 | |
b1868a1a CY |
1575 | family = AREF (font, FONT_FAMILY_INDEX); |
1576 | if (! NILP (family)) | |
1577 | { | |
1578 | if (SYMBOLP (family)) | |
c21721cc | 1579 | family = SYMBOL_NAME (family); |
b1868a1a CY |
1580 | else |
1581 | family = Qnil; | |
1582 | } | |
ec6fe57c KH |
1583 | |
1584 | val = AREF (font, FONT_SIZE_INDEX); | |
1585 | if (INTEGERP (val)) | |
ef18374f | 1586 | { |
ec6fe57c KH |
1587 | if (XINT (val) != 0) |
1588 | pixel_size = XINT (val); | |
1589 | point_size = -1; | |
ef18374f | 1590 | } |
3ddb0639 | 1591 | else |
ef18374f | 1592 | { |
4e6a86c6 | 1593 | eassert (FLOATP (val)); |
ec6fe57c KH |
1594 | pixel_size = -1; |
1595 | point_size = (int) XFLOAT_DATA (val); | |
ef18374f | 1596 | } |
ec6fe57c | 1597 | |
b1868a1a CY |
1598 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1599 | if (! NILP (foundry)) | |
1600 | { | |
1601 | if (SYMBOLP (foundry)) | |
c21721cc | 1602 | foundry = SYMBOL_NAME (foundry); |
b1868a1a CY |
1603 | else |
1604 | foundry = Qnil; | |
1605 | } | |
ec6fe57c | 1606 | |
35027d0c | 1607 | for (i = 0; i < 3; i++) |
c21721cc | 1608 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
35027d0c | 1609 | |
ef18374f | 1610 | p = name; |
c21721cc | 1611 | lim = name + nbytes; |
b1868a1a | 1612 | if (! NILP (family)) |
8666506e PE |
1613 | { |
1614 | int len = snprintf (p, lim - p, "%s", SSDATA (family)); | |
1615 | if (! (0 <= len && len < lim - p)) | |
1616 | return -1; | |
1617 | p += len; | |
1618 | } | |
ec6fe57c | 1619 | if (point_size > 0) |
8666506e | 1620 | { |
31ff141c | 1621 | int len = snprintf (p, lim - p, &"-%d"[p == name], point_size); |
8666506e PE |
1622 | if (! (0 <= len && len < lim - p)) |
1623 | return -1; | |
1624 | p += len; | |
1625 | } | |
ef18374f | 1626 | else if (pixel_size > 0) |
8666506e PE |
1627 | { |
1628 | int len = snprintf (p, lim - p, ":pixelsize=%d", pixel_size); | |
1629 | if (! (0 <= len && len < lim - p)) | |
1630 | return -1; | |
1631 | p += len; | |
1632 | } | |
35027d0c | 1633 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
8666506e PE |
1634 | { |
1635 | int len = snprintf (p, lim - p, ":foundry=%s", | |
1636 | SSDATA (SYMBOL_NAME (AREF (font, | |
1637 | FONT_FOUNDRY_INDEX)))); | |
1638 | if (! (0 <= len && len < lim - p)) | |
1639 | return -1; | |
1640 | p += len; | |
1641 | } | |
a9262bb8 | 1642 | for (i = 0; i < 3; i++) |
35027d0c | 1643 | if (! NILP (styles[i])) |
8666506e PE |
1644 | { |
1645 | int len = snprintf (p, lim - p, ":%s=%s", style_names[i], | |
1646 | SSDATA (SYMBOL_NAME (styles[i]))); | |
1647 | if (! (0 <= len && len < lim - p)) | |
1648 | return -1; | |
1649 | p += len; | |
1650 | } | |
1651 | ||
35027d0c | 1652 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
8666506e PE |
1653 | { |
1654 | int len = snprintf (p, lim - p, ":dpi=%"pI"d", | |
1655 | XINT (AREF (font, FONT_DPI_INDEX))); | |
1656 | if (! (0 <= len && len < lim - p)) | |
1657 | return -1; | |
1658 | p += len; | |
1659 | } | |
1660 | ||
35027d0c | 1661 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
8666506e PE |
1662 | { |
1663 | int len = snprintf (p, lim - p, ":spacing=%"pI"d", | |
1664 | XINT (AREF (font, FONT_SPACING_INDEX))); | |
1665 | if (! (0 <= len && len < lim - p)) | |
1666 | return -1; | |
1667 | p += len; | |
1668 | } | |
1669 | ||
35027d0c | 1670 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
8666506e PE |
1671 | { |
1672 | int len = snprintf (p, lim - p, | |
1673 | (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0 | |
1674 | ? ":scalable=true" | |
1675 | : ":scalable=false")); | |
1676 | if (! (0 <= len && len < lim - p)) | |
1677 | return -1; | |
1678 | p += len; | |
1679 | } | |
1680 | ||
1681 | return (p - name); | |
ef18374f KH |
1682 | } |
1683 | ||
1684 | /* Parse NAME (null terminated) and store information in FONT | |
1685 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1686 | 0. Otherwise return -1. */ |
ef18374f KH |
1687 | |
1688 | static int | |
984e7f30 | 1689 | font_parse_name (char *name, ptrdiff_t namelen, Lisp_Object font) |
ef18374f | 1690 | { |
8966b757 | 1691 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
984e7f30 DA |
1692 | return font_parse_xlfd (name, namelen, font); |
1693 | return font_parse_fcname (name, namelen, 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 |
971de7fb | 1702 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1703 | { |
35027d0c KH |
1704 | int len; |
1705 | char *p0, *p1; | |
1706 | ||
d0ab1ebe KH |
1707 | if (! NILP (family) |
1708 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1709 | { |
35027d0c KH |
1710 | CHECK_STRING (family); |
1711 | len = SBYTES (family); | |
51b59d79 | 1712 | p0 = SSDATA (family); |
8966b757 | 1713 | p1 = strchr (p0, '-'); |
35027d0c | 1714 | if (p1) |
c2f5bfd6 | 1715 | { |
9903d1e6 | 1716 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1717 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1718 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1719 | p1++; |
1720 | len -= p1 - p0; | |
2f286d4f | 1721 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1722 | } |
35027d0c KH |
1723 | else |
1724 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1725 | } |
35027d0c | 1726 | if (! NILP (registry)) |
c2f5bfd6 | 1727 | { |
35027d0c KH |
1728 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1729 | CHECK_STRING (registry); | |
1730 | len = SBYTES (registry); | |
51b59d79 | 1731 | p0 = SSDATA (registry); |
8966b757 | 1732 | p1 = strchr (p0, '-'); |
35027d0c | 1733 | if (! p1) |
c2f5bfd6 | 1734 | { |
35027d0c KH |
1735 | if (SDATA (registry)[len - 1] == '*') |
1736 | registry = concat2 (registry, build_string ("-*")); | |
1737 | else | |
1738 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1739 | } |
35027d0c KH |
1740 | registry = Fdowncase (registry); |
1741 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1742 | } |
1743 | } | |
1744 | ||
45eb10fb | 1745 | \f |
35027d0c KH |
1746 | /* This part (through the next ^L) is still experimental and not |
1747 | tested much. We may drastically change codes. */ | |
10d16101 | 1748 | |
266fee4f | 1749 | /* OTF handler. */ |
10d16101 | 1750 | |
6a3dadd2 KH |
1751 | #if 0 |
1752 | ||
e950d6f1 KH |
1753 | #define LGSTRING_HEADER_SIZE 6 |
1754 | #define LGSTRING_GLYPH_SIZE 8 | |
1755 | ||
1756 | static int | |
1dae0f0a | 1757 | check_gstring (Lisp_Object gstring) |
e950d6f1 KH |
1758 | { |
1759 | Lisp_Object val; | |
d311d28c PE |
1760 | ptrdiff_t i; |
1761 | int j; | |
e950d6f1 KH |
1762 | |
1763 | CHECK_VECTOR (gstring); | |
1764 | val = AREF (gstring, 0); | |
1765 | CHECK_VECTOR (val); | |
1766 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1767 | goto err; | |
1768 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1769 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1770 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1771 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1772 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1773 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1774 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1775 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1776 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1777 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1778 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1779 | |
071132a9 | 1780 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1781 | { |
1782 | val = LGSTRING_GLYPH (gstring, i); | |
1783 | CHECK_VECTOR (val); | |
1784 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1785 | goto err; | |
f9ffa1ea | 1786 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1787 | break; |
f9ffa1ea SM |
1788 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1789 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1790 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1791 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1792 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1793 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1794 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1795 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1796 | { |
f9ffa1ea | 1797 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1798 | CHECK_VECTOR (val); |
1799 | if (ASIZE (val) < 3) | |
1800 | goto err; | |
1801 | for (j = 0; j < 3; j++) | |
1802 | CHECK_NUMBER (AREF (val, j)); | |
1803 | } | |
1804 | } | |
1805 | return i; | |
1806 | err: | |
1807 | error ("Invalid glyph-string format"); | |
1808 | return -1; | |
1809 | } | |
1810 | ||
cf385d93 | 1811 | static void |
1dae0f0a | 1812 | check_otf_features (Lisp_Object otf_features) |
cf385d93 | 1813 | { |
35027d0c | 1814 | Lisp_Object val; |
cf385d93 KH |
1815 | |
1816 | CHECK_CONS (otf_features); | |
1817 | CHECK_SYMBOL (XCAR (otf_features)); | |
1818 | otf_features = XCDR (otf_features); | |
1819 | CHECK_CONS (otf_features); | |
1820 | CHECK_SYMBOL (XCAR (otf_features)); | |
1821 | otf_features = XCDR (otf_features); | |
7d7bbefd | 1822 | for (val = Fcar (otf_features); CONSP (val); val = XCDR (val)) |
cf385d93 | 1823 | { |
34348bd4 | 1824 | CHECK_SYMBOL (XCAR (val)); |
cf385d93 | 1825 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) |
e6c3da20 EZ |
1826 | error ("Invalid OTF GSUB feature: %s", |
1827 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1828 | } |
1829 | otf_features = XCDR (otf_features); | |
7d7bbefd | 1830 | for (val = Fcar (otf_features); CONSP (val); val = XCDR (val)) |
cf385d93 | 1831 | { |
34348bd4 | 1832 | CHECK_SYMBOL (XCAR (val)); |
cf385d93 | 1833 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) |
e6c3da20 EZ |
1834 | error ("Invalid OTF GPOS feature: %s", |
1835 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
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 | |
1dae0f0a | 1845 | otf_tag_symbol (OTF_Tag tag) |
c2f5bfd6 KH |
1846 | { |
1847 | char name[5]; | |
1848 | ||
1849 | OTF_tag_name (tag, name); | |
1850 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1851 | } | |
1852 | ||
1853 | static OTF * | |
1dae0f0a | 1854 | otf_open (Lisp_Object file) |
c2f5bfd6 | 1855 | { |
35027d0c | 1856 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1857 | OTF *otf; |
1858 | ||
1859 | if (! NILP (val)) | |
2b30549c | 1860 | otf = XSAVE_POINTER (XCDR (val), 0); |
733fd013 | 1861 | else |
c2f5bfd6 | 1862 | { |
51b59d79 | 1863 | otf = STRINGP (file) ? OTF_open (SSDATA (file)) : NULL; |
1396ac86 | 1864 | val = make_save_ptr (otf); |
35027d0c | 1865 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1866 | } |
733fd013 | 1867 | return otf; |
c2f5bfd6 KH |
1868 | } |
1869 | ||
1870 | ||
1871 | /* Return a list describing which scripts/languages FONT supports by | |
1872 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1873 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1874 | |
1875 | Lisp_Object | |
1dae0f0a | 1876 | font_otf_capability (struct font *font) |
c2f5bfd6 KH |
1877 | { |
1878 | OTF *otf; | |
1879 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1880 | int i; | |
1881 | ||
35027d0c | 1882 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1883 | if (! otf) |
1884 | return Qnil; | |
1885 | for (i = 0; i < 2; i++) | |
1886 | { | |
1887 | OTF_GSUB_GPOS *gsub_gpos; | |
1888 | Lisp_Object script_list = Qnil; | |
1889 | int j; | |
1890 | ||
1891 | if (OTF_get_features (otf, i == 0) < 0) | |
1892 | continue; | |
1893 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1894 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1895 | { | |
1896 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1897 | Lisp_Object langsys_list = Qnil; | |
1898 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1899 | int k; | |
1900 | ||
1901 | for (k = script->LangSysCount; k >= 0; k--) | |
1902 | { | |
1903 | OTF_LangSys *langsys; | |
1904 | Lisp_Object feature_list = Qnil; | |
1905 | Lisp_Object langsys_tag; | |
1906 | int l; | |
1907 | ||
e80e09b4 | 1908 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1909 | { |
1910 | langsys = &script->DefaultLangSys; | |
1911 | langsys_tag = Qnil; | |
1912 | } | |
1913 | else | |
1914 | { | |
1915 | langsys = script->LangSys + k; | |
1916 | langsys_tag | |
1917 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1918 | } | |
e80e09b4 | 1919 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1920 | { |
1921 | OTF_Feature *feature | |
1922 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1923 | Lisp_Object feature_tag | |
1924 | = otf_tag_symbol (feature->FeatureTag); | |
1925 | ||
1926 | feature_list = Fcons (feature_tag, feature_list); | |
1927 | } | |
1928 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1929 | langsys_list); | |
1930 | } | |
1931 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1932 | script_list); | |
1933 | } | |
1934 | ||
1935 | if (i == 0) | |
1936 | XSETCAR (capability, script_list); | |
1937 | else | |
1938 | XSETCDR (capability, script_list); | |
1939 | } | |
1940 | ||
1941 | return capability; | |
1942 | } | |
1943 | ||
733fd013 KH |
1944 | /* Parse OTF features in SPEC and write a proper features spec string |
1945 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1946 | assured that the sufficient memory has already allocated for | |
1947 | FEATURES. */ | |
1948 | ||
e80e09b4 | 1949 | static void |
1dae0f0a | 1950 | generate_otf_features (Lisp_Object spec, char *features) |
c2f5bfd6 KH |
1951 | { |
1952 | Lisp_Object val; | |
35027d0c | 1953 | char *p; |
a864ef14 | 1954 | bool asterisk; |
c2f5bfd6 | 1955 | |
733fd013 | 1956 | p = features; |
e80e09b4 | 1957 | *p = '\0'; |
c2f5bfd6 KH |
1958 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1959 | { | |
1960 | val = XCAR (spec); | |
e80e09b4 KH |
1961 | CHECK_SYMBOL (val); |
1962 | if (p > features) | |
733fd013 | 1963 | *p++ = ','; |
c2f5bfd6 KH |
1964 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1965 | { | |
1966 | asterisk = 1; | |
e80e09b4 | 1967 | *p++ = '*'; |
c2f5bfd6 KH |
1968 | } |
1969 | else if (! asterisk) | |
e80e09b4 KH |
1970 | { |
1971 | val = SYMBOL_NAME (val); | |
c21721cc | 1972 | p += esprintf (p, "%s", SDATA (val)); |
e80e09b4 | 1973 | } |
c2f5bfd6 | 1974 | else |
e80e09b4 KH |
1975 | { |
1976 | val = SYMBOL_NAME (val); | |
c21721cc | 1977 | p += esprintf (p, "~%s", SDATA (val)); |
e80e09b4 | 1978 | } |
c2f5bfd6 | 1979 | } |
e80e09b4 KH |
1980 | if (CONSP (spec)) |
1981 | error ("OTF spec too long"); | |
1982 | } | |
1983 | ||
733fd013 | 1984 | Lisp_Object |
1dae0f0a | 1985 | font_otf_DeviceTable (OTF_DeviceTable *device_table) |
733fd013 KH |
1986 | { |
1987 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1988 | ||
1989 | return Fcons (make_number (len), | |
1990 | make_unibyte_string (device_table->DeltaValue, len)); | |
1991 | } | |
1992 | ||
1993 | Lisp_Object | |
1dae0f0a | 1994 | font_otf_ValueRecord (int value_format, OTF_ValueRecord *value_record) |
733fd013 KH |
1995 | { |
1996 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1997 | ||
1998 | if (value_format & OTF_XPlacement) | |
43c0454d | 1999 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 2000 | if (value_format & OTF_YPlacement) |
43c0454d | 2001 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 2002 | if (value_format & OTF_XAdvance) |
43c0454d | 2003 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 2004 | if (value_format & OTF_YAdvance) |
43c0454d | 2005 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
2006 | if (value_format & OTF_XPlaDevice) |
2007 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
2008 | if (value_format & OTF_YPlaDevice) | |
2009 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
2010 | if (value_format & OTF_XAdvDevice) | |
2011 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
2012 | if (value_format & OTF_YAdvDevice) | |
2013 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
2014 | return val; | |
2015 | } | |
2016 | ||
2017 | Lisp_Object | |
1dae0f0a | 2018 | font_otf_Anchor (OTF_Anchor *anchor) |
733fd013 KH |
2019 | { |
2020 | Lisp_Object val; | |
2021 | ||
2022 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2023 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2024 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2025 | if (anchor->AnchorFormat == 2) | |
2026 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2027 | else | |
2028 | { | |
2029 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2030 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2031 | } | |
2032 | return val; | |
2033 | } | |
c2f5bfd6 | 2034 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2035 | #endif /* 0 */ |
c2f5bfd6 | 2036 | |
c2f5bfd6 | 2037 | \f |
266fee4f | 2038 | /* Font sorting. */ |
c2f5bfd6 | 2039 | |
55e41770 | 2040 | static double |
971de7fb | 2041 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
2042 | { |
2043 | Lisp_Object tail, elt; | |
2044 | Lisp_Object name = Qnil; | |
2045 | ||
2046 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2047 | { | |
2048 | elt = XCAR (tail); | |
2049 | if (FLOATP (XCDR (elt))) | |
2050 | { | |
2051 | if (STRINGP (XCAR (elt))) | |
2052 | { | |
2053 | if (NILP (name)) | |
2054 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2055 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2056 | return XFLOAT_DATA (XCDR (elt)); | |
2057 | } | |
2058 | else if (FONT_SPEC_P (XCAR (elt))) | |
2059 | { | |
2060 | if (font_match_p (XCAR (elt), font_entity)) | |
2061 | return XFLOAT_DATA (XCDR (elt)); | |
2062 | } | |
2063 | } | |
2064 | } | |
2065 | return 1.0; | |
2066 | } | |
2067 | ||
c2f5bfd6 KH |
2068 | /* We sort fonts by scoring each of them against a specified |
2069 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2070 | the value is, the closer the font is to the font-spec. | |
2071 | ||
56dd2d86 | 2072 | The lowest 2 bits of the score are used for driver type. The font |
4007dd1c | 2073 | available by the most preferred font driver is 0. |
35027d0c | 2074 | |
56dd2d86 | 2075 | The 4 7-bit fields in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2076 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2077 | ||
2078 | /* How many bits to shift to store the difference value of each font | |
56dd2d86 | 2079 | property in a score. Note that floats for FONT_TYPE_INDEX and |
35027d0c | 2080 | FONT_REGISTRY_INDEX are not used. */ |
c2f5bfd6 KH |
2081 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2082 | ||
9331887d KH |
2083 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2084 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2085 | SPEC_PROP. */ |
c2f5bfd6 KH |
2086 | |
2087 | static unsigned | |
971de7fb | 2088 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2089 | { |
2090 | unsigned score = 0; | |
2091 | int i; | |
c2f5bfd6 | 2092 | |
35027d0c KH |
2093 | /* Score three style numeric fields. Maximum difference is 127. */ |
2094 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2095 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2096 | { | |
790771b1 PE |
2097 | EMACS_INT diff = ((XINT (AREF (entity, i)) >> 8) |
2098 | - (XINT (spec_prop[i]) >> 8)); | |
71376d4b | 2099 | score |= min (eabs (diff), 127) << sort_shift_bits[i]; |
35027d0c KH |
2100 | } |
2101 | ||
2102 | /* Score the size. Maximum difference is 127. */ | |
2103 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2104 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2105 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2106 | { |
2107 | /* We use the higher 6-bit for the actual size difference. The | |
2108 | lowest bit is set if the DPI is different. */ | |
b79e8648 PE |
2109 | EMACS_INT diff; |
2110 | EMACS_INT pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2111 | |
55e41770 KH |
2112 | if (CONSP (Vface_font_rescale_alist)) |
2113 | pixel_size *= font_rescale_ratio (entity); | |
71376d4b | 2114 | diff = eabs (pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX))) << 1; |
35027d0c KH |
2115 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2116 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2117 | diff |= 1; | |
c0a6070d KH |
2118 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2119 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2120 | diff |= 1; | |
35027d0c | 2121 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2122 | } |
2123 | ||
2124 | return score; | |
2125 | } | |
2126 | ||
2127 | ||
72d36834 KH |
2128 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2129 | of font-entity vectors. */ | |
c2f5bfd6 | 2130 | |
72d36834 KH |
2131 | static Lisp_Object |
2132 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2133 | { |
72d36834 | 2134 | int nargs = XINT (Flength (list)); |
663e2b3f | 2135 | Lisp_Object *args = alloca (word_size * nargs); |
72d36834 KH |
2136 | int i; |
2137 | ||
2138 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2139 | args[i] = XCAR (list); | |
2140 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2141 | } |
2142 | ||
2143 | ||
2144 | /* The structure for elements being sorted by qsort. */ | |
2145 | struct font_sort_data | |
2146 | { | |
2147 | unsigned score; | |
72d36834 | 2148 | int font_driver_preference; |
c2f5bfd6 KH |
2149 | Lisp_Object entity; |
2150 | }; | |
2151 | ||
2152 | ||
72d36834 KH |
2153 | /* The comparison function for qsort. */ |
2154 | ||
2155 | static int | |
971de7fb | 2156 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2157 | { |
2158 | const struct font_sort_data *data1 = d1; | |
2159 | const struct font_sort_data *data2 = d2; | |
2160 | ||
2161 | if (data1->score < data2->score) | |
2162 | return -1; | |
2163 | else if (data1->score > data2->score) | |
2164 | return 1; | |
2165 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2166 | } | |
2167 | ||
2168 | ||
2169 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2170 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2171 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2172 | of FRAME before sorting. |
35027d0c | 2173 | |
c9477f01 KH |
2174 | If BEST-ONLY is nonzero, return the best matching entity (that |
2175 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2176 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2177 | a single vector of font-entities. | |
c9477f01 | 2178 | |
72d36834 KH |
2179 | This function does no optimization for the case that the total |
2180 | number of elements is 1. The caller should avoid calling this in | |
2181 | such a case. */ | |
c2f5bfd6 KH |
2182 | |
2183 | static Lisp_Object | |
fdb396e2 DA |
2184 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, |
2185 | struct frame *f, int best_only) | |
c2f5bfd6 | 2186 | { |
9331887d | 2187 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2188 | int len, maxlen, i; |
c2f5bfd6 | 2189 | struct font_sort_data *data; |
35027d0c | 2190 | unsigned best_score; |
72d36834 | 2191 | Lisp_Object best_entity; |
5ad03b97 | 2192 | Lisp_Object tail, vec IF_LINT (= Qnil); |
c2f5bfd6 KH |
2193 | USE_SAFE_ALLOCA; |
2194 | ||
9903d1e6 | 2195 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2196 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2197 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2198 | prefer_prop[FONT_SIZE_INDEX] | |
fdb396e2 | 2199 | = make_number (font_pixel_size (f, prefer)); |
9331887d | 2200 | |
72d36834 KH |
2201 | if (NILP (XCDR (list))) |
2202 | { | |
2203 | /* What we have to take care of is this single vector. */ | |
2204 | vec = XCAR (list); | |
2205 | maxlen = ASIZE (vec); | |
2206 | } | |
2207 | else if (best_only) | |
2208 | { | |
2209 | /* We don't have to perform sort, so there's no need of creating | |
2210 | a single vector. But, we must find the length of the longest | |
2211 | vector. */ | |
2212 | maxlen = 0; | |
2213 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2214 | if (maxlen < ASIZE (XCAR (tail))) | |
2215 | maxlen = ASIZE (XCAR (tail)); | |
2216 | } | |
2217 | else | |
2218 | { | |
2219 | /* We have to create a single vector to sort it. */ | |
2220 | vec = font_vconcat_entity_vectors (list); | |
2221 | maxlen = ASIZE (vec); | |
2222 | } | |
2223 | ||
98c6f1e3 | 2224 | data = SAFE_ALLOCA (maxlen * sizeof *data); |
c9477f01 KH |
2225 | best_score = 0xFFFFFFFF; |
2226 | best_entity = Qnil; | |
72d36834 KH |
2227 | |
2228 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2229 | { |
72d36834 KH |
2230 | int font_driver_preference = 0; |
2231 | Lisp_Object current_font_driver; | |
ce75f06e | 2232 | |
72d36834 KH |
2233 | if (best_only) |
2234 | vec = XCAR (tail); | |
2235 | len = ASIZE (vec); | |
2236 | ||
2237 | /* We are sure that the length of VEC > 0. */ | |
2238 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2239 | /* Score the elements. */ | |
2240 | for (i = 0; i < len; i++) | |
35027d0c | 2241 | { |
72d36834 KH |
2242 | data[i].entity = AREF (vec, i); |
2243 | data[i].score | |
2244 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2245 | > 0) | |
2246 | ? font_score (data[i].entity, prefer_prop) | |
2247 | : 0xFFFFFFFF); | |
2248 | if (best_only && best_score > data[i].score) | |
2249 | { | |
2250 | best_score = data[i].score; | |
2251 | best_entity = data[i].entity; | |
2252 | if (best_score == 0) | |
2253 | break; | |
2254 | } | |
2255 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2256 | { | |
2257 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2258 | font_driver_preference++; | |
2259 | } | |
2260 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2261 | } |
72d36834 KH |
2262 | |
2263 | /* Sort if necessary. */ | |
2264 | if (! best_only) | |
2265 | { | |
2266 | qsort (data, len, sizeof *data, font_compare); | |
2267 | for (i = 0; i < len; i++) | |
2268 | ASET (vec, i, data[i].entity); | |
2269 | break; | |
2270 | } | |
2271 | else | |
2272 | vec = best_entity; | |
c2f5bfd6 | 2273 | } |
72d36834 | 2274 | |
c2f5bfd6 KH |
2275 | SAFE_FREE (); |
2276 | ||
652b9560 | 2277 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2278 | return vec; |
2279 | } | |
2280 | ||
2281 | \f | |
2282 | /* API of Font Service Layer. */ | |
2283 | ||
45eb10fb KH |
2284 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2285 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2286 | function with font_sort_order after setting up it. */ | |
2287 | ||
c2f5bfd6 | 2288 | void |
971de7fb | 2289 | font_update_sort_order (int *order) |
c2f5bfd6 | 2290 | { |
35027d0c | 2291 | int i, shift_bits; |
c2f5bfd6 | 2292 | |
943b7eea | 2293 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2294 | { |
2295 | int xlfd_idx = order[i]; | |
2296 | ||
2297 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2298 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2299 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2300 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2301 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2302 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2303 | else | |
2304 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2305 | } | |
2306 | } | |
2307 | ||
a864ef14 PE |
2308 | static bool |
2309 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, | |
2310 | Lisp_Object features, Lisp_Object table) | |
51c13510 KH |
2311 | { |
2312 | Lisp_Object val; | |
a864ef14 | 2313 | bool negative; |
51c13510 KH |
2314 | |
2315 | table = assq_no_quit (script, table); | |
2316 | if (NILP (table)) | |
2317 | return 0; | |
2318 | table = XCDR (table); | |
2319 | if (! NILP (langsys)) | |
2320 | { | |
2321 | table = assq_no_quit (langsys, table); | |
2322 | if (NILP (table)) | |
2323 | return 0; | |
2324 | } | |
2325 | else | |
2326 | { | |
2327 | val = assq_no_quit (Qnil, table); | |
2328 | if (NILP (val)) | |
2329 | table = XCAR (table); | |
2330 | else | |
2331 | table = val; | |
2332 | } | |
2333 | table = XCDR (table); | |
2334 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2335 | { | |
2336 | if (NILP (XCAR (features))) | |
c423ecca KH |
2337 | { |
2338 | negative = 1; | |
2339 | continue; | |
2340 | } | |
51c13510 KH |
2341 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2342 | return 0; | |
2343 | } | |
2344 | return 1; | |
2345 | } | |
2346 | ||
2347 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2348 | ||
a864ef14 | 2349 | static bool |
3cba9369 | 2350 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2351 | { |
2352 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2353 | ||
2354 | script = XCAR (spec); | |
2355 | spec = XCDR (spec); | |
2356 | if (! NILP (spec)) | |
2357 | { | |
2358 | langsys = XCAR (spec); | |
2359 | spec = XCDR (spec); | |
2360 | if (! NILP (spec)) | |
2361 | { | |
2362 | gsub = XCAR (spec); | |
2363 | spec = XCDR (spec); | |
2364 | if (! NILP (spec)) | |
2365 | gpos = XCAR (spec); | |
2366 | } | |
2367 | } | |
2368 | ||
2369 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2370 | XCAR (otf_capability))) | |
2371 | return 0; | |
2372 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2373 | XCDR (otf_capability))) | |
2374 | return 0; | |
2375 | return 1; | |
2376 | } | |
2377 | ||
45eb10fb | 2378 | |
51c13510 KH |
2379 | |
2380 | /* Check if FONT (font-entity or font-object) matches with the font | |
2381 | specification SPEC. */ | |
45eb10fb | 2382 | |
a864ef14 | 2383 | bool |
971de7fb | 2384 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2385 | { |
51c13510 KH |
2386 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2387 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2388 | int i; |
2389 | ||
51c13510 KH |
2390 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2391 | if (! NILP (AREF (spec, i)) | |
2392 | && ! NILP (AREF (font, i)) | |
2393 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2394 | return 0; | |
2395 | props = XFONT_SPEC (spec)->props; | |
2396 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2397 | { | |
2398 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2399 | prop[i] = AREF (spec, i); | |
2400 | prop[FONT_SIZE_INDEX] | |
2401 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2402 | props = prop; | |
2403 | } | |
2404 | ||
2405 | if (font_score (font, props) > 0) | |
2406 | return 0; | |
2407 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2408 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2409 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2410 | { |
51c13510 KH |
2411 | Lisp_Object key = XCAR (XCAR (extra)); |
2412 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2413 | ||
2414 | if (EQ (key, QClang)) | |
2415 | { | |
2416 | val2 = assq_no_quit (key, font_extra); | |
2417 | if (NILP (val2)) | |
2418 | return 0; | |
2419 | val2 = XCDR (val2); | |
2420 | if (CONSP (val)) | |
2421 | { | |
2422 | if (! CONSP (val2)) | |
2423 | return 0; | |
2424 | while (CONSP (val)) | |
2425 | if (NILP (Fmemq (val, val2))) | |
2426 | return 0; | |
2427 | } | |
2428 | else | |
2429 | if (CONSP (val2) | |
2430 | ? NILP (Fmemq (val, XCDR (val2))) | |
2431 | : ! EQ (val, val2)) | |
2432 | return 0; | |
2433 | } | |
2434 | else if (EQ (key, QCscript)) | |
2435 | { | |
2436 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2437 | if (CONSP (val2)) |
2438 | { | |
2439 | val2 = XCDR (val2); | |
2440 | if (CONSP (val2)) | |
2441 | { | |
2442 | /* All characters in the list must be supported. */ | |
2443 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2444 | { | |
d311d28c | 2445 | if (! CHARACTERP (XCAR (val2))) |
5bdd4dd2 KH |
2446 | continue; |
2447 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2448 | == FONT_INVALID_CODE) | |
2449 | return 0; | |
2450 | } | |
2451 | } | |
2452 | else if (VECTORP (val2)) | |
2453 | { | |
2454 | /* At most one character in the vector must be supported. */ | |
2455 | for (i = 0; i < ASIZE (val2); i++) | |
2456 | { | |
d311d28c | 2457 | if (! CHARACTERP (AREF (val2, i))) |
5bdd4dd2 KH |
2458 | continue; |
2459 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2460 | != FONT_INVALID_CODE) | |
f5485732 | 2461 | break; |
5bdd4dd2 KH |
2462 | } |
2463 | if (i == ASIZE (val2)) | |
2464 | return 0; | |
2465 | } | |
2466 | } | |
51c13510 KH |
2467 | } |
2468 | else if (EQ (key, QCotf)) | |
2469 | { | |
2470 | struct font *fontp; | |
2471 | ||
2472 | if (! FONT_OBJECT_P (font)) | |
2473 | return 0; | |
2474 | fontp = XFONT_OBJECT (font); | |
2475 | if (! fontp->driver->otf_capability) | |
2476 | return 0; | |
2477 | val2 = fontp->driver->otf_capability (fontp); | |
2478 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2479 | return 0; | |
2480 | } | |
35027d0c KH |
2481 | } |
2482 | ||
51c13510 | 2483 | return 1; |
ef18374f | 2484 | } |
ca4da08a | 2485 | \f |
819e81df | 2486 | |
ca4da08a KH |
2487 | /* Font cache |
2488 | ||
2489 | Each font backend has the callback function get_cache, and it | |
2490 | returns a cons cell of which cdr part can be freely used for | |
2491 | caching fonts. The cons cell may be shared by multiple frames | |
2492 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2493 | ||
2494 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2495 | ||
2496 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2497 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2498 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2499 | ||
a10c8269 DA |
2500 | static void font_prepare_cache (struct frame *, struct font_driver *); |
2501 | static void font_finish_cache (struct frame *, struct font_driver *); | |
2502 | static Lisp_Object font_get_cache (struct frame *, struct font_driver *); | |
2503 | static void font_clear_cache (struct frame *, Lisp_Object, | |
f57e2426 | 2504 | struct font_driver *); |
ca4da08a KH |
2505 | |
2506 | static void | |
a10c8269 | 2507 | font_prepare_cache (struct frame *f, struct font_driver *driver) |
ca4da08a KH |
2508 | { |
2509 | Lisp_Object cache, val; | |
2510 | ||
2511 | cache = driver->get_cache (f); | |
2512 | val = XCDR (cache); | |
2513 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2514 | val = XCDR (val); | |
2515 | if (NILP (val)) | |
2516 | { | |
6c6f1994 | 2517 | val = list2 (driver->type, make_number (1)); |
ca4da08a KH |
2518 | XSETCDR (cache, Fcons (val, XCDR (cache))); |
2519 | } | |
2520 | else | |
2521 | { | |
2522 | val = XCDR (XCAR (val)); | |
2523 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2524 | } | |
2525 | } | |
2526 | ||
43c0454d | 2527 | |
ca4da08a | 2528 | static void |
a10c8269 | 2529 | font_finish_cache (struct frame *f, struct font_driver *driver) |
ca4da08a KH |
2530 | { |
2531 | Lisp_Object cache, val, tmp; | |
2532 | ||
2533 | ||
2534 | cache = driver->get_cache (f); | |
2535 | val = XCDR (cache); | |
2536 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2537 | cache = val, val = XCDR (val); | |
4e6a86c6 | 2538 | eassert (! NILP (val)); |
ca4da08a | 2539 | tmp = XCDR (XCAR (val)); |
43c0454d | 2540 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2541 | if (XINT (XCAR (tmp)) == 0) |
2542 | { | |
2543 | font_clear_cache (f, XCAR (val), driver); | |
2544 | XSETCDR (cache, XCDR (val)); | |
2545 | } | |
ca4da08a KH |
2546 | } |
2547 | ||
43c0454d | 2548 | |
ca4da08a | 2549 | static Lisp_Object |
a10c8269 | 2550 | font_get_cache (struct frame *f, struct font_driver *driver) |
ca4da08a KH |
2551 | { |
2552 | Lisp_Object val = driver->get_cache (f); | |
2553 | Lisp_Object type = driver->type; | |
2554 | ||
4e6a86c6 | 2555 | eassert (CONSP (val)); |
ca4da08a | 2556 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
4e6a86c6 | 2557 | eassert (CONSP (val)); |
ca4da08a KH |
2558 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2559 | val = XCDR (XCAR (val)); | |
2560 | return val; | |
2561 | } | |
2562 | ||
43c0454d | 2563 | |
ca4da08a | 2564 | static void |
a10c8269 | 2565 | font_clear_cache (struct frame *f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2566 | { |
2567 | Lisp_Object tail, elt; | |
6136b72f | 2568 | Lisp_Object tail2, entity; |
51c01100 | 2569 | |
ca4da08a KH |
2570 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2571 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2572 | { | |
2573 | elt = XCAR (tail); | |
6136b72f CY |
2574 | /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */ |
2575 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
ca4da08a | 2576 | { |
6136b72f | 2577 | for (tail2 = XCDR (elt); CONSP (tail2); tail2 = XCDR (tail2)) |
ca4da08a | 2578 | { |
6136b72f | 2579 | entity = XCAR (tail2); |
ca4da08a | 2580 | |
6136b72f CY |
2581 | if (FONT_ENTITY_P (entity) |
2582 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2583 | { |
2584 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2585 | ||
2586 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2587 | { | |
2588 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2589 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2590 | |
5e634ec9 KH |
2591 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2592 | { | |
4e6a86c6 | 2593 | eassert (font && driver == font->driver); |
78e0b35c | 2594 | driver->close (font); |
5e634ec9 | 2595 | } |
ca4da08a KH |
2596 | } |
2597 | if (driver->free_entity) | |
2598 | driver->free_entity (entity); | |
2599 | } | |
2600 | } | |
2601 | } | |
2602 | } | |
2603 | XSETCDR (cache, Qnil); | |
2604 | } | |
2605 | \f | |
2606 | ||
c2f5bfd6 KH |
2607 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2608 | ||
7d56b2dd | 2609 | /* Check each font-entity in VEC, and return a list of font-entities |
56dd2d86 | 2610 | that satisfy these conditions: |
7d56b2dd KH |
2611 | (1) matches with SPEC and SIZE if SPEC is not nil, and |
2612 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2613 | */ | |
2614 | ||
7b81e2d0 | 2615 | static Lisp_Object |
971de7fb | 2616 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2617 | { |
d0ab1ebe | 2618 | Lisp_Object entity, val; |
35027d0c | 2619 | enum font_property_index prop; |
72d36834 | 2620 | int i; |
45eb10fb | 2621 | |
72d36834 | 2622 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2623 | { |
72d36834 | 2624 | entity = AREF (vec, i); |
7d56b2dd KH |
2625 | if (! NILP (Vface_ignored_fonts)) |
2626 | { | |
2627 | char name[256]; | |
d923b542 | 2628 | ptrdiff_t namelen; |
7d56b2dd KH |
2629 | Lisp_Object tail, regexp; |
2630 | ||
d923b542 DA |
2631 | namelen = font_unparse_xlfd (entity, 0, name, 256); |
2632 | if (namelen >= 0) | |
7d56b2dd KH |
2633 | { |
2634 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2635 | { | |
2636 | regexp = XCAR (tail); | |
2637 | if (STRINGP (regexp) | |
d923b542 DA |
2638 | && fast_c_string_match_ignore_case (regexp, name, |
2639 | namelen) >= 0) | |
7d56b2dd KH |
2640 | break; |
2641 | } | |
2642 | if (CONSP (tail)) | |
2643 | continue; | |
2644 | } | |
2645 | } | |
2646 | if (NILP (spec)) | |
2647 | { | |
2648 | val = Fcons (entity, val); | |
2649 | continue; | |
2650 | } | |
35027d0c KH |
2651 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2652 | if (INTEGERP (AREF (spec, prop)) | |
2653 | && ((XINT (AREF (spec, prop)) >> 8) | |
2654 | != (XINT (AREF (entity, prop)) >> 8))) | |
2655 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2656 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2657 | && size |
2658 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2659 | { | |
2660 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2661 | |
71376d4b | 2662 | if (eabs (diff) > FONT_PIXEL_SIZE_QUANTUM) |
35027d0c KH |
2663 | prop = FONT_SPEC_MAX; |
2664 | } | |
7181ea6a KH |
2665 | if (prop < FONT_SPEC_MAX |
2666 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2667 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2668 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2669 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2670 | prop = FONT_SPEC_MAX; | |
2671 | if (prop < FONT_SPEC_MAX | |
2672 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2673 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2674 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2675 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2676 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2677 | prop = FONT_SPEC_MAX; | |
35027d0c | 2678 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2679 | val = Fcons (entity, val); |
35027d0c | 2680 | } |
72d36834 | 2681 | return (Fvconcat (1, &val)); |
35027d0c KH |
2682 | } |
2683 | ||
2684 | ||
72d36834 | 2685 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2686 | FRAME. Each elements in the list is a vector of entities from the |
2687 | same font-driver. */ | |
35027d0c KH |
2688 | |
2689 | Lisp_Object | |
fdb396e2 | 2690 | font_list_entities (struct frame *f, Lisp_Object spec) |
c2f5bfd6 | 2691 | { |
c2f5bfd6 | 2692 | struct font_driver_list *driver_list = f->font_driver_list; |
4007dd1c | 2693 | Lisp_Object ftype, val; |
72d36834 | 2694 | Lisp_Object list = Qnil; |
35027d0c | 2695 | int size; |
a864ef14 | 2696 | bool need_filtering = 0; |
c2f5bfd6 KH |
2697 | int i; |
2698 | ||
4e6a86c6 | 2699 | eassert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2700 | |
35027d0c KH |
2701 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2702 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2703 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2704 | size = font_pixel_size (f, spec); | |
2705 | else | |
2706 | size = 0; | |
2707 | ||
c2f5bfd6 | 2708 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2709 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2710 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2711 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
56201685 PE |
2712 | if (i != FONT_SPACING_INDEX) |
2713 | { | |
2714 | ASET (scratch_font_spec, i, Qnil); | |
2715 | if (! NILP (AREF (spec, i))) | |
2716 | need_filtering = 1; | |
2717 | } | |
aa50ca2f | 2718 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2719 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2720 | ||
a378aa9d | 2721 | for (; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2722 | if (driver_list->on |
2723 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2724 | { |
ca4da08a | 2725 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2726 | |
e4c93315 | 2727 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2728 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2729 | if (CONSP (val)) | |
2730 | val = XCDR (val); | |
2731 | else | |
c2f5bfd6 | 2732 | { |
4007dd1c | 2733 | Lisp_Object copy; |
35027d0c | 2734 | |
fdb396e2 | 2735 | val = driver_list->driver->list (f, scratch_font_spec); |
72d36834 | 2736 | if (NILP (val)) |
9730daca | 2737 | val = zero_vector; |
72d36834 KH |
2738 | else |
2739 | val = Fvconcat (1, &val); | |
92470028 | 2740 | copy = copy_font_spec (scratch_font_spec); |
4007dd1c KH |
2741 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2742 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2743 | } |
7d56b2dd KH |
2744 | if (ASIZE (val) > 0 |
2745 | && (need_filtering | |
2746 | || ! NILP (Vface_ignored_fonts))) | |
2747 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2748 | if (ASIZE (val) > 0) |
2749 | list = Fcons (val, list); | |
c2f5bfd6 | 2750 | } |
35027d0c | 2751 | |
72d36834 KH |
2752 | list = Fnreverse (list); |
2753 | FONT_ADD_LOG ("list", spec, list); | |
2754 | return list; | |
c2f5bfd6 KH |
2755 | } |
2756 | ||
45eb10fb | 2757 | |
35027d0c KH |
2758 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2759 | nil, is an array of face's attributes, which specifies preferred | |
2760 | font-related attributes. */ | |
45eb10fb | 2761 | |
e950d6f1 | 2762 | static Lisp_Object |
a10c8269 | 2763 | font_matching_entity (struct frame *f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2764 | { |
e950d6f1 KH |
2765 | struct font_driver_list *driver_list = f->font_driver_list; |
2766 | Lisp_Object ftype, size, entity; | |
92470028 | 2767 | Lisp_Object work = copy_font_spec (spec); |
e950d6f1 KH |
2768 | |
2769 | ftype = AREF (spec, FONT_TYPE_INDEX); | |
2770 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2771 | |
8d0e382e AR |
2772 | if (FLOATP (size)) |
2773 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2774 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2775 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2776 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2777 | ||
e950d6f1 KH |
2778 | entity = Qnil; |
2779 | for (; driver_list; driver_list = driver_list->next) | |
2780 | if (driver_list->on | |
2781 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2782 | { | |
ca4da08a | 2783 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2784 | Lisp_Object copy; |
e950d6f1 | 2785 | |
819ab95f KH |
2786 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2787 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2788 | if (CONSP (entity)) |
e950d6f1 KH |
2789 | entity = XCDR (entity); |
2790 | else | |
2791 | { | |
fdb396e2 | 2792 | entity = driver_list->driver->match (f, work); |
92470028 | 2793 | copy = copy_font_spec (work); |
7cee5d63 KH |
2794 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2795 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2796 | } |
2797 | if (! NILP (entity)) | |
2798 | break; | |
2799 | } | |
652b9560 | 2800 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2801 | return entity; |
2802 | } | |
2803 | ||
45eb10fb KH |
2804 | |
2805 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2806 | opened font object. */ | |
2807 | ||
c2f5bfd6 | 2808 | static Lisp_Object |
a10c8269 | 2809 | font_open_entity (struct frame *f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2810 | { |
2811 | struct font_driver_list *driver_list; | |
43c0454d | 2812 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2813 | struct font *font; |
8bd722db | 2814 | int min_width, height, psize; |
c2f5bfd6 | 2815 | |
4e6a86c6 | 2816 | eassert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2817 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2818 | if (XINT (size) != 0) |
7e70a152 | 2819 | pixel_size = XINT (size); |
c2f5bfd6 | 2820 | |
35027d0c KH |
2821 | val = AREF (entity, FONT_TYPE_INDEX); |
2822 | for (driver_list = f->font_driver_list; | |
2823 | driver_list && ! EQ (driver_list->driver->type, val); | |
2824 | driver_list = driver_list->next); | |
2825 | if (! driver_list) | |
2826 | return Qnil; | |
c2f5bfd6 | 2827 | |
d0cf45b7 JD |
2828 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2829 | objlist = XCDR (objlist)) | |
2830 | { | |
2831 | Lisp_Object fn = XCAR (objlist); | |
2832 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2833 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2834 | { | |
2835 | if (driver_list->driver->cached_font_ok == NULL | |
2836 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2837 | return fn; | |
2838 | } | |
2839 | } | |
2840 | ||
8bd722db KH |
2841 | /* We always open a font of manageable size; i.e non-zero average |
2842 | width and height. */ | |
2843 | for (psize = pixel_size; ; psize++) | |
2844 | { | |
2845 | font_object = driver_list->driver->open (f, entity, psize); | |
2846 | if (NILP (font_object)) | |
2847 | return Qnil; | |
2848 | font = XFONT_OBJECT (font_object); | |
2849 | if (font->average_width > 0 && font->height > 0) | |
2850 | break; | |
2851 | } | |
2852 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2853 | FONT_ADD_LOG ("open", entity, font_object); |
35027d0c KH |
2854 | ASET (entity, FONT_OBJLIST_INDEX, |
2855 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2856 | |
2857 | font = XFONT_OBJECT (font_object); | |
2858 | min_width = (font->min_width ? font->min_width | |
2859 | : font->average_width ? font->average_width | |
2860 | : font->space_width ? font->space_width | |
2861 | : 1); | |
d26424c5 | 2862 | height = (font->height ? font->height : 1); |
819e81df | 2863 | #ifdef HAVE_WINDOW_SYSTEM |
aad3612f DA |
2864 | FRAME_DISPLAY_INFO (f)->n_fonts++; |
2865 | if (FRAME_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2866 | { |
35027d0c | 2867 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2868 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
bd0443bb | 2869 | f->fonts_changed = 1; |
35027d0c KH |
2870 | } |
2871 | else | |
2872 | { | |
2873 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
bd0443bb | 2874 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, f->fonts_changed = 1; |
d26424c5 | 2875 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
bd0443bb | 2876 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, f->fonts_changed = 1; |
43c0454d | 2877 | } |
819e81df | 2878 | #endif |
43c0454d KH |
2879 | |
2880 | return font_object; | |
c2f5bfd6 KH |
2881 | } |
2882 | ||
45eb10fb KH |
2883 | |
2884 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2885 | ||
239f9db9 | 2886 | static void |
a10c8269 | 2887 | font_close_object (struct frame *f, Lisp_Object font_object) |
c2f5bfd6 | 2888 | { |
35027d0c | 2889 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2890 | |
5e634ec9 KH |
2891 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2892 | /* Already closed. */ | |
2893 | return; | |
652b9560 | 2894 | FONT_ADD_LOG ("close", font_object, Qnil); |
78e0b35c | 2895 | font->driver->close (font); |
819e81df | 2896 | #ifdef HAVE_WINDOW_SYSTEM |
aad3612f DA |
2897 | eassert (FRAME_DISPLAY_INFO (f)->n_fonts); |
2898 | FRAME_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2899 | #endif |
c2f5bfd6 KH |
2900 | } |
2901 | ||
45eb10fb | 2902 | |
1701724c KH |
2903 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2904 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2905 | |
c2f5bfd6 | 2906 | int |
a10c8269 | 2907 | font_has_char (struct frame *f, Lisp_Object font, int c) |
c2f5bfd6 | 2908 | { |
1b834a8d | 2909 | struct font *fontp; |
c2f5bfd6 | 2910 | |
1b834a8d KH |
2911 | if (FONT_ENTITY_P (font)) |
2912 | { | |
2913 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2914 | struct font_driver_list *driver_list; | |
2915 | ||
2916 | for (driver_list = f->font_driver_list; | |
2917 | driver_list && ! EQ (driver_list->driver->type, type); | |
2918 | driver_list = driver_list->next); | |
2919 | if (! driver_list) | |
2920 | return 0; | |
2921 | if (! driver_list->driver->has_char) | |
2922 | return -1; | |
2923 | return driver_list->driver->has_char (font, c); | |
2924 | } | |
2925 | ||
4e6a86c6 | 2926 | eassert (FONT_OBJECT_P (font)); |
35027d0c | 2927 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2928 | if (fontp->driver->has_char) |
2929 | { | |
35027d0c | 2930 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2931 | |
2932 | if (result >= 0) | |
2933 | return result; | |
2934 | } | |
2935 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2936 | } |
2937 | ||
45eb10fb KH |
2938 | |
2939 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2940 | ||
2f7c71a1 | 2941 | static unsigned |
971de7fb | 2942 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 2943 | { |
35027d0c | 2944 | struct font *font; |
c2f5bfd6 | 2945 | |
4e6a86c6 | 2946 | eassert (FONT_OBJECT_P (font_object)); |
35027d0c | 2947 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2948 | return font->driver->encode_char (font, c); |
2949 | } | |
2950 | ||
45eb10fb KH |
2951 | |
2952 | /* Return the name of FONT_OBJECT. */ | |
2953 | ||
ef18374f | 2954 | Lisp_Object |
971de7fb | 2955 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 2956 | { |
4e6a86c6 | 2957 | eassert (FONT_OBJECT_P (font_object)); |
35027d0c | 2958 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2959 | } |
2960 | ||
45eb10fb | 2961 | |
05802645 CY |
2962 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME |
2963 | could not be parsed by font_parse_name, return Qnil. */ | |
2964 | ||
35027d0c | 2965 | Lisp_Object |
971de7fb | 2966 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 2967 | { |
05802645 | 2968 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 2969 | |
05802645 | 2970 | CHECK_STRING (font_name); |
984e7f30 | 2971 | if (font_parse_name (SSDATA (font_name), SBYTES (font_name), spec) == -1) |
05802645 CY |
2972 | return Qnil; |
2973 | font_put_extra (spec, QCname, font_name); | |
42707278 | 2974 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 2975 | return spec; |
35027d0c KH |
2976 | } |
2977 | ||
45eb10fb | 2978 | |
35027d0c | 2979 | void |
971de7fb | 2980 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
2981 | { |
2982 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 2983 | |
35027d0c KH |
2984 | if (! FONTP (font)) |
2985 | return; | |
42707278 | 2986 | |
483670b5 KH |
2987 | if (! NILP (Ffont_get (font, QCname))) |
2988 | { | |
92470028 | 2989 | font = copy_font_spec (font); |
483670b5 KH |
2990 | font_put_extra (font, QCname, Qnil); |
2991 | } | |
2992 | ||
35027d0c | 2993 | if (NILP (AREF (font, prop)) |
e234927a CY |
2994 | && prop != FONT_FAMILY_INDEX |
2995 | && prop != FONT_FOUNDRY_INDEX | |
2996 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 2997 | && prop != FONT_SIZE_INDEX) |
35027d0c | 2998 | return; |
483670b5 | 2999 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
92470028 | 3000 | font = copy_font_spec (font); |
35027d0c | 3001 | ASET (font, prop, Qnil); |
4007dd1c | 3002 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 3003 | { |
4007dd1c | 3004 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
3005 | { |
3006 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
3007 | /* If we are setting the font family, we must also clear | |
3008 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
3009 | support for some widths. */ | |
3010 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
3011 | } | |
35027d0c | 3012 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3013 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3014 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3015 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3016 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3017 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3018 | } | |
3019 | else if (prop == FONT_SIZE_INDEX) | |
3020 | { | |
3021 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3022 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3023 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3024 | } | |
e234927a CY |
3025 | else if (prop == FONT_WIDTH_INDEX) |
3026 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3027 | attrs[LFACE_FONT_INDEX] = font; |
3028 | } | |
3029 | ||
56dd2d86 EZ |
3030 | /* Select a font from ENTITIES (list of font-entity vectors) that |
3031 | supports C and is the best match for ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
3032 | |
3033 | static Lisp_Object | |
fdb396e2 DA |
3034 | font_select_entity (struct frame *f, Lisp_Object entities, |
3035 | Lisp_Object *attrs, int pixel_size, int c) | |
988a7ddb KH |
3036 | { |
3037 | Lisp_Object font_entity; | |
3038 | Lisp_Object prefer; | |
a864ef14 | 3039 | int i; |
988a7ddb | 3040 | |
72d36834 KH |
3041 | if (NILP (XCDR (entities)) |
3042 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 3043 | { |
72d36834 | 3044 | font_entity = AREF (XCAR (entities), 0); |
a864ef14 | 3045 | if (c < 0 || font_has_char (f, font_entity, c) > 0) |
988a7ddb KH |
3046 | return font_entity; |
3047 | return Qnil; | |
3048 | } | |
3049 | ||
3050 | /* Sort fonts by properties specified in ATTRS. */ | |
3051 | prefer = scratch_font_prefer; | |
3052 | ||
3053 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3054 | ASET (prefer, i, Qnil); | |
3055 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3056 | { | |
3057 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3058 | ||
3059 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3060 | ASET (prefer, i, AREF (face_font, i)); | |
3061 | } | |
3062 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3063 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3064 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3065 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3066 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3067 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3068 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3069 | |
fdb396e2 | 3070 | return font_sort_entities (entities, prefer, f, c); |
988a7ddb KH |
3071 | } |
3072 | ||
56dd2d86 EZ |
3073 | /* Return a font-entity that satisfies SPEC and is the best match for |
3074 | face's font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3075 | character that the entity must support. */ |
c2f5bfd6 KH |
3076 | |
3077 | Lisp_Object | |
a10c8269 | 3078 | font_find_for_lface (struct frame *f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3079 | { |
4007dd1c | 3080 | Lisp_Object work; |
fdb396e2 | 3081 | Lisp_Object entities, val; |
78834453 | 3082 | Lisp_Object foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3083 | int pixel_size; |
72d36834 | 3084 | int i, j, k, l; |
d311d28c | 3085 | USE_SAFE_ALLOCA; |
d0a47776 KH |
3086 | |
3087 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3088 | if (NILP (registry[0])) | |
3089 | { | |
edfda783 | 3090 | registry[0] = DEFAULT_ENCODING; |
d0a47776 | 3091 | registry[1] = Qascii_0; |
9730daca | 3092 | registry[2] = zero_vector; |
d0a47776 KH |
3093 | } |
3094 | else | |
9730daca | 3095 | registry[1] = zero_vector; |
c2f5bfd6 | 3096 | |
4007dd1c | 3097 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3098 | { |
35027d0c | 3099 | struct charset *encoding, *repertory; |
1701724c | 3100 | |
4007dd1c KH |
3101 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3102 | &encoding, &repertory) < 0) | |
35027d0c | 3103 | return Qnil; |
72d36834 KH |
3104 | if (repertory |
3105 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3106 | return Qnil; | |
35027d0c KH |
3107 | else if (c > encoding->max_char) |
3108 | return Qnil; | |
c2f5bfd6 KH |
3109 | } |
3110 | ||
92470028 | 3111 | work = copy_font_spec (spec); |
227f12fa | 3112 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
1d1e1245 | 3113 | pixel_size = font_pixel_size (f, spec); |
dbc05432 | 3114 | if (pixel_size == 0 && INTEGERP (attrs[LFACE_HEIGHT_INDEX])) |
1d1e1245 KH |
3115 | { |
3116 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3117 | ||
42143acd | 3118 | pixel_size = POINT_TO_PIXEL (pt / 10, FRAME_RES_Y (f)); |
8bd722db KH |
3119 | if (pixel_size < 1) |
3120 | pixel_size = 1; | |
1d1e1245 | 3121 | } |
4007dd1c KH |
3122 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3123 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3124 | if (! NILP (foundry[0])) | |
9730daca | 3125 | foundry[1] = zero_vector; |
4007dd1c KH |
3126 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) |
3127 | { | |
071132a9 | 3128 | val = attrs[LFACE_FOUNDRY_INDEX]; |
51b59d79 | 3129 | foundry[0] = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
4007dd1c | 3130 | foundry[1] = Qnil; |
9730daca | 3131 | foundry[2] = zero_vector; |
4007dd1c KH |
3132 | } |
3133 | else | |
9730daca | 3134 | foundry[0] = Qnil, foundry[1] = zero_vector; |
4007dd1c | 3135 | |
22459668 KH |
3136 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3137 | if (! NILP (adstyle[0])) | |
9730daca | 3138 | adstyle[1] = zero_vector; |
22459668 KH |
3139 | else if (FONTP (attrs[LFACE_FONT_INDEX])) |
3140 | { | |
3141 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3142 | ||
3143 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3144 | { | |
3145 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3146 | adstyle[1] = Qnil; | |
9730daca | 3147 | adstyle[2] = zero_vector; |
22459668 KH |
3148 | } |
3149 | else | |
9730daca | 3150 | adstyle[0] = Qnil, adstyle[1] = zero_vector; |
22459668 KH |
3151 | } |
3152 | else | |
9730daca | 3153 | adstyle[0] = Qnil, adstyle[1] = zero_vector; |
22459668 KH |
3154 | |
3155 | ||
4007dd1c KH |
3156 | val = AREF (work, FONT_FAMILY_INDEX); |
3157 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3158 | { |
3159 | val = attrs[LFACE_FAMILY_INDEX]; | |
51b59d79 | 3160 | val = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
071132a9 | 3161 | } |
4007dd1c KH |
3162 | if (NILP (val)) |
3163 | { | |
3164 | family = alloca ((sizeof family[0]) * 2); | |
3165 | family[0] = Qnil; | |
9730daca | 3166 | family[1] = zero_vector; /* terminator. */ |
4007dd1c KH |
3167 | } |
3168 | else | |
3169 | { | |
3170 | Lisp_Object alters | |
b6e64c41 | 3171 | = Fassoc_string (val, Vface_alternative_font_family_alist, Qt); |
4007dd1c KH |
3172 | |
3173 | if (! NILP (alters)) | |
3174 | { | |
d311d28c PE |
3175 | EMACS_INT alterslen = XFASTINT (Flength (alters)); |
3176 | SAFE_ALLOCA_LISP (family, alterslen + 2); | |
4007dd1c KH |
3177 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) |
3178 | family[i] = XCAR (alters); | |
3179 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3180 | family[i++] = Qnil; | |
9730daca | 3181 | family[i] = zero_vector; |
4007dd1c KH |
3182 | } |
3183 | else | |
3184 | { | |
3185 | family = alloca ((sizeof family[0]) * 3); | |
3186 | i = 0; | |
3187 | family[i++] = val; | |
3188 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3189 | family[i++] = Qnil; | |
9730daca | 3190 | family[i] = zero_vector; |
4007dd1c KH |
3191 | } |
3192 | } | |
3193 | ||
d0a47776 | 3194 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3195 | { |
d0a47776 KH |
3196 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3197 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3198 | { |
d0a47776 KH |
3199 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3200 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3201 | { | |
904a2e0e | 3202 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3203 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3204 | { | |
3205 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
fdb396e2 | 3206 | entities = font_list_entities (f, work); |
72d36834 | 3207 | if (! NILP (entities)) |
988a7ddb | 3208 | { |
fdb396e2 | 3209 | val = font_select_entity (f, entities, |
988a7ddb KH |
3210 | attrs, pixel_size, c); |
3211 | if (! NILP (val)) | |
e8374b39 DA |
3212 | { |
3213 | SAFE_FREE (); | |
3214 | return val; | |
3215 | } | |
988a7ddb | 3216 | } |
22459668 | 3217 | } |
d0a47776 | 3218 | } |
4007dd1c | 3219 | } |
4007dd1c | 3220 | } |
d311d28c PE |
3221 | |
3222 | SAFE_FREE (); | |
d0a47776 | 3223 | return Qnil; |
1701724c | 3224 | } |
45eb10fb KH |
3225 | |
3226 | ||
c2f5bfd6 | 3227 | Lisp_Object |
a10c8269 | 3228 | font_open_for_lface (struct frame *f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3229 | { |
9331887d | 3230 | int size; |
c2f5bfd6 | 3231 | |
4007dd1c KH |
3232 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3233 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3234 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
733fd013 KH |
3235 | else |
3236 | { | |
7e70a152 KH |
3237 | if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) |
3238 | size = font_pixel_size (f, spec); | |
50b0cd29 CY |
3239 | else |
3240 | { | |
7e70a152 KH |
3241 | double pt; |
3242 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3243 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3244 | else | |
3245 | { | |
3246 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3247 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3248 | eassert (INTEGERP (height)); | |
3249 | pt = XINT (height); | |
3250 | } | |
733fd013 | 3251 | |
7e70a152 | 3252 | pt /= 10; |
42143acd | 3253 | size = POINT_TO_PIXEL (pt, FRAME_RES_Y (f)); |
ed96cde8 | 3254 | #ifdef HAVE_NS |
7e70a152 KH |
3255 | if (size == 0) |
3256 | { | |
3257 | Lisp_Object ffsize = get_frame_param (f, Qfontsize); | |
42143acd DA |
3258 | size = (NUMBERP (ffsize) |
3259 | ? POINT_TO_PIXEL (XINT (ffsize), FRAME_RES_Y (f)) : 0); | |
7e70a152 | 3260 | } |
ed96cde8 | 3261 | #endif |
7e70a152 KH |
3262 | } |
3263 | size *= font_rescale_ratio (entity); | |
733fd013 | 3264 | } |
7e70a152 | 3265 | |
c2f5bfd6 KH |
3266 | return font_open_entity (f, entity, size); |
3267 | } | |
3268 | ||
45eb10fb | 3269 | |
56dd2d86 EZ |
3270 | /* Find a font that satisfies SPEC and is the best match for |
3271 | face's attributes in ATTRS on FRAME, and return the opened | |
35027d0c | 3272 | font-object. */ |
45eb10fb | 3273 | |
35027d0c | 3274 | Lisp_Object |
a10c8269 | 3275 | font_load_for_lface (struct frame *f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3276 | { |
637fa988 | 3277 | Lisp_Object entity, name; |
ef18374f | 3278 | |
908567ef | 3279 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3280 | if (NILP (entity)) |
ef18374f | 3281 | { |
35027d0c | 3282 | /* No font is listed for SPEC, but each font-backend may have |
56dd2d86 | 3283 | different criteria about "font matching". So, try it. */ |
35027d0c KH |
3284 | entity = font_matching_entity (f, attrs, spec); |
3285 | if (NILP (entity)) | |
3286 | return Qnil; | |
c2f5bfd6 | 3287 | } |
537b04b9 | 3288 | /* Don't lose the original name that was put in initially. We need |
637fa988 JD |
3289 | it to re-apply the font when font parameters (like hinting or dpi) have |
3290 | changed. */ | |
3291 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3292 | if (!NILP (entity)) |
3293 | { | |
42707278 JD |
3294 | name = Ffont_get (spec, QCuser_spec); |
3295 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3296 | } |
637fa988 | 3297 | return entity; |
c2f5bfd6 KH |
3298 | } |
3299 | ||
45eb10fb KH |
3300 | |
3301 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3302 | ||
c2f5bfd6 | 3303 | void |
a10c8269 | 3304 | font_prepare_for_face (struct frame *f, struct face *face) |
c2f5bfd6 | 3305 | { |
35027d0c KH |
3306 | if (face->font->driver->prepare_face) |
3307 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3308 | } |
3309 | ||
45eb10fb KH |
3310 | |
3311 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3312 | ||
c2f5bfd6 | 3313 | void |
a10c8269 | 3314 | font_done_for_face (struct frame *f, struct face *face) |
c2f5bfd6 | 3315 | { |
35027d0c KH |
3316 | if (face->font->driver->done_face) |
3317 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3318 | face->extra = NULL; |
3319 | } | |
3320 | ||
45eb10fb | 3321 | |
56dd2d86 | 3322 | /* Open a font that is a match for font-spec SPEC on frame F. If no proper |
c50b7e98 | 3323 | font is found, return Qnil. */ |
45eb10fb | 3324 | |
c2f5bfd6 | 3325 | Lisp_Object |
a10c8269 | 3326 | font_open_by_spec (struct frame *f, Lisp_Object spec) |
c2f5bfd6 | 3327 | { |
c50b7e98 | 3328 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3329 | |
4007dd1c KH |
3330 | /* We set up the default font-related attributes of a face to prefer |
3331 | a moderate font. */ | |
3332 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3333 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3334 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3335 | #ifndef HAVE_NS |
4007dd1c | 3336 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3337 | #else |
3338 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3339 | #endif | |
4007dd1c KH |
3340 | attrs[LFACE_FONT_INDEX] = Qnil; |
3341 | ||
3342 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3343 | } |
3344 | ||
3345 | ||
56dd2d86 | 3346 | /* Open a font that matches NAME on frame F. If no proper font is |
c50b7e98 KH |
3347 | found, return Qnil. */ |
3348 | ||
3349 | Lisp_Object | |
a10c8269 | 3350 | font_open_by_name (struct frame *f, Lisp_Object name) |
c50b7e98 KH |
3351 | { |
3352 | Lisp_Object args[2]; | |
581e51e8 | 3353 | Lisp_Object spec, ret; |
c50b7e98 KH |
3354 | |
3355 | args[0] = QCname; | |
d7ea76b4 | 3356 | args[1] = name; |
c50b7e98 | 3357 | spec = Ffont_spec (2, args); |
581e51e8 | 3358 | ret = font_open_by_spec (f, spec); |
537b04b9 | 3359 | /* Do not lose name originally put in. */ |
8096a0ff | 3360 | if (!NILP (ret)) |
42707278 | 3361 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3362 | |
3363 | return ret; | |
c50b7e98 KH |
3364 | } |
3365 | ||
3366 | ||
c2f5bfd6 KH |
3367 | /* Register font-driver DRIVER. This function is used in two ways. |
3368 | ||
417a1b10 | 3369 | The first is with frame F non-NULL. In this case, make DRIVER |
56dd2d86 | 3370 | available (but not yet activated) on F. All frame creators |
417a1b10 KH |
3371 | (e.g. Fx_create_frame) must call this function at least once with |
3372 | an available font-driver. | |
c2f5bfd6 KH |
3373 | |
3374 | The second is with frame F NULL. In this case, DRIVER is globally | |
3375 | registered in the variable `font_driver_list'. All font-driver | |
3376 | implementations must call this function in its syms_of_XXXX | |
3377 | (e.g. syms_of_xfont). */ | |
3378 | ||
3379 | void | |
a10c8269 | 3380 | register_font_driver (struct font_driver *driver, struct frame *f) |
c2f5bfd6 KH |
3381 | { |
3382 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3383 | struct font_driver_list *prev, *list; | |
3384 | ||
257b3b03 | 3385 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 3386 | if (f && ! driver->draw) |
43a1d19b | 3387 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 | 3388 | SDATA (SYMBOL_NAME (driver->type))); |
257b3b03 | 3389 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 KH |
3390 | |
3391 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3392 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3393 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3394 | ||
38182d90 | 3395 | list = xmalloc (sizeof *list); |
417a1b10 | 3396 | list->on = 0; |
c2f5bfd6 KH |
3397 | list->driver = driver; |
3398 | list->next = NULL; | |
3399 | if (prev) | |
3400 | prev->next = list; | |
3401 | else if (f) | |
3402 | f->font_driver_list = list; | |
3403 | else | |
3404 | font_driver_list = list; | |
72606e45 KH |
3405 | if (! f) |
3406 | num_font_drivers++; | |
c2f5bfd6 KH |
3407 | } |
3408 | ||
2ed98482 | 3409 | void |
a10c8269 | 3410 | free_font_driver_list (struct frame *f) |
2ed98482 CY |
3411 | { |
3412 | struct font_driver_list *list, *next; | |
3413 | ||
3414 | for (list = f->font_driver_list; list; list = next) | |
3415 | { | |
3416 | next = list->next; | |
3417 | xfree (list); | |
3418 | } | |
3419 | f->font_driver_list = NULL; | |
3420 | } | |
3421 | ||
45eb10fb | 3422 | |
f697fff0 | 3423 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3424 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3425 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3426 | |
ca4da08a KH |
3427 | A caller must free all realized faces if any in advance. The |
3428 | return value is a list of font backends actually made used on | |
3429 | F. */ | |
e950d6f1 KH |
3430 | |
3431 | Lisp_Object | |
a10c8269 | 3432 | font_update_drivers (struct frame *f, Lisp_Object new_drivers) |
417a1b10 KH |
3433 | { |
3434 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
3435 | struct font_driver_list *list; |
3436 | ||
4007dd1c KH |
3437 | /* At first, turn off non-requested drivers, and turn on requested |
3438 | drivers. */ | |
f697fff0 | 3439 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c | 3440 | { |
13a547c6 | 3441 | struct font_driver *driver = list->driver; |
4007dd1c KH |
3442 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) |
3443 | != list->on) | |
3444 | { | |
3445 | if (list->on) | |
3446 | { | |
3447 | if (driver->end_for_frame) | |
3448 | driver->end_for_frame (f); | |
3449 | font_finish_cache (f, driver); | |
3450 | list->on = 0; | |
3451 | } | |
3452 | else | |
3453 | { | |
3454 | if (! driver->start_for_frame | |
3455 | || driver->start_for_frame (f) == 0) | |
3456 | { | |
3457 | font_prepare_cache (f, driver); | |
3458 | list->on = 1; | |
3459 | } | |
3460 | } | |
3461 | } | |
3462 | } | |
3463 | ||
3464 | if (NILP (new_drivers)) | |
3465 | return Qnil; | |
3466 | ||
3467 | if (! EQ (new_drivers, Qt)) | |
3468 | { | |
3469 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3470 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3471 | Lisp_Object tail; |
3472 | int i; | |
3473 | ||
3474 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3475 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3476 | { | |
3477 | for (list = f->font_driver_list; list; list = list->next) | |
3478 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3479 | break; | |
3480 | if (list) | |
3481 | list_table[i++] = list; | |
3482 | } | |
3483 | for (list = f->font_driver_list; list; list = list->next) | |
3484 | if (! list->on) | |
6136b72f | 3485 | list_table[i++] = list; |
4007dd1c KH |
3486 | list_table[i] = NULL; |
3487 | ||
3306c6dc | 3488 | next = &f->font_driver_list; |
4007dd1c KH |
3489 | for (i = 0; list_table[i]; i++) |
3490 | { | |
3306c6dc AS |
3491 | *next = list_table[i]; |
3492 | next = &(*next)->next; | |
4007dd1c | 3493 | } |
3306c6dc | 3494 | *next = NULL; |
ba98e3a0 SM |
3495 | |
3496 | if (! f->font_driver_list->on) | |
3497 | { /* None of the drivers is enabled: enable them all. | |
3498 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3499 | and then use it under w32 or ns. */ | |
3500 | for (list = f->font_driver_list; list; list = list->next) | |
3501 | { | |
3502 | struct font_driver *driver = list->driver; | |
3503 | eassert (! list->on); | |
3504 | if (! driver->start_for_frame | |
3505 | || driver->start_for_frame (f) == 0) | |
3506 | { | |
3507 | font_prepare_cache (f, driver); | |
3508 | list->on = 1; | |
3509 | } | |
3510 | } | |
3511 | } | |
4007dd1c | 3512 | } |
417a1b10 | 3513 | |
4007dd1c KH |
3514 | for (list = f->font_driver_list; list; list = list->next) |
3515 | if (list->on) | |
6c6f1994 | 3516 | active_drivers = nconc2 (active_drivers, list1 (list->driver->type)); |
e950d6f1 | 3517 | return active_drivers; |
417a1b10 KH |
3518 | } |
3519 | ||
f697fff0 | 3520 | int |
a10c8269 | 3521 | font_put_frame_data (struct frame *f, struct font_driver *driver, void *data) |
f697fff0 KH |
3522 | { |
3523 | struct font_data_list *list, *prev; | |
3524 | ||
3525 | for (prev = NULL, list = f->font_data_list; list; | |
3526 | prev = list, list = list->next) | |
3527 | if (list->driver == driver) | |
3528 | break; | |
3529 | if (! data) | |
3530 | { | |
3531 | if (list) | |
3532 | { | |
3533 | if (prev) | |
3534 | prev->next = list->next; | |
3535 | else | |
3536 | f->font_data_list = list->next; | |
973e7849 | 3537 | xfree (list); |
f697fff0 KH |
3538 | } |
3539 | return 0; | |
3540 | } | |
3541 | ||
3542 | if (! list) | |
3543 | { | |
38182d90 | 3544 | list = xmalloc (sizeof *list); |
f697fff0 KH |
3545 | list->driver = driver; |
3546 | list->next = f->font_data_list; | |
3547 | f->font_data_list = list; | |
3548 | } | |
3549 | list->data = data; | |
3550 | return 0; | |
3551 | } | |
3552 | ||
3553 | ||
3554 | void * | |
a10c8269 | 3555 | font_get_frame_data (struct frame *f, struct font_driver *driver) |
f697fff0 KH |
3556 | { |
3557 | struct font_data_list *list; | |
3558 | ||
3559 | for (list = f->font_data_list; list; list = list->next) | |
3560 | if (list->driver == driver) | |
3561 | break; | |
3562 | if (! list) | |
3563 | return NULL; | |
3564 | return list->data; | |
3565 | } | |
3566 | ||
417a1b10 | 3567 | |
9fa82824 DP |
3568 | /* Sets attributes on a font. Any properties that appear in ALIST and |
3569 | BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font. | |
3570 | BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated | |
3571 | arrays of strings. This function is intended for use by the font | |
3572 | drivers to implement their specific font_filter_properties. */ | |
3573 | void | |
220d91b8 JB |
3574 | font_filter_properties (Lisp_Object font, |
3575 | Lisp_Object alist, | |
3106121c YM |
3576 | const char *const boolean_properties[], |
3577 | const char *const non_boolean_properties[]) | |
9fa82824 DP |
3578 | { |
3579 | Lisp_Object it; | |
3580 | int i; | |
3581 | ||
266fee4f | 3582 | /* Set boolean values to Qt or Qnil. */ |
9fa82824 DP |
3583 | for (i = 0; boolean_properties[i] != NULL; ++i) |
3584 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3585 | { | |
3586 | Lisp_Object key = XCAR (XCAR (it)); | |
3587 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3588 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3589 | |
3590 | if (strcmp (boolean_properties[i], keystr) == 0) | |
3591 | { | |
3592 | const char *str = INTEGERP (val) ? (XINT (val) ? "true" : "false") | |
51b59d79 | 3593 | : SYMBOLP (val) ? SSDATA (SYMBOL_NAME (val)) |
9fa82824 DP |
3594 | : "true"; |
3595 | ||
3596 | if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0 | |
3597 | || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0 | |
3598 | || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0 | |
3599 | || strcmp ("Off", str) == 0) | |
3600 | val = Qnil; | |
3601 | else | |
3602 | val = Qt; | |
3603 | ||
3604 | Ffont_put (font, key, val); | |
3605 | } | |
3606 | } | |
3607 | ||
3608 | for (i = 0; non_boolean_properties[i] != NULL; ++i) | |
3609 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3610 | { | |
3611 | Lisp_Object key = XCAR (XCAR (it)); | |
3612 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3613 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3614 | if (strcmp (non_boolean_properties[i], keystr) == 0) |
3615 | Ffont_put (font, key, val); | |
3616 | } | |
3617 | } | |
3618 | ||
3619 | ||
45eb10fb | 3620 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3621 | POS in window W. If STRING is non-nil, it is a string containing C |
3622 | at index POS. If C is negative, get C from the current buffer or | |
3623 | STRING. */ | |
45eb10fb | 3624 | |
2f7c71a1 | 3625 | static Lisp_Object |
d311d28c | 3626 | font_at (int c, ptrdiff_t pos, struct face *face, struct window *w, |
2f7c71a1 | 3627 | Lisp_Object string) |
10d16101 | 3628 | { |
a10c8269 | 3629 | struct frame *f; |
a864ef14 | 3630 | bool multibyte; |
35027d0c | 3631 | Lisp_Object font_object; |
e3ee0340 | 3632 | |
e500c47d | 3633 | multibyte = (NILP (string) |
4b4deea2 | 3634 | ? ! NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e500c47d | 3635 | : STRING_MULTIBYTE (string)); |
e3ee0340 KH |
3636 | if (c < 0) |
3637 | { | |
3638 | if (NILP (string)) | |
3639 | { | |
e3ee0340 KH |
3640 | if (multibyte) |
3641 | { | |
d311d28c | 3642 | ptrdiff_t pos_byte = CHAR_TO_BYTE (pos); |
e3ee0340 KH |
3643 | |
3644 | c = FETCH_CHAR (pos_byte); | |
3645 | } | |
3646 | else | |
3647 | c = FETCH_BYTE (pos); | |
3648 | } | |
3649 | else | |
3650 | { | |
3651 | unsigned char *str; | |
3652 | ||
3653 | multibyte = STRING_MULTIBYTE (string); | |
3654 | if (multibyte) | |
3655 | { | |
d311d28c | 3656 | ptrdiff_t pos_byte = string_char_to_byte (string, pos); |
e3ee0340 KH |
3657 | |
3658 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3659 | c = STRING_CHAR (str); |
e3ee0340 KH |
3660 | } |
3661 | else | |
3662 | c = SDATA (string)[pos]; | |
3663 | } | |
3664 | } | |
10d16101 | 3665 | |
d3d50620 | 3666 | f = XFRAME (w->frame); |
1385a806 KH |
3667 | if (! FRAME_WINDOW_P (f)) |
3668 | return Qnil; | |
10d16101 KH |
3669 | if (! face) |
3670 | { | |
e3ee0340 | 3671 | int face_id; |
d311d28c | 3672 | ptrdiff_t endptr; |
e3ee0340 KH |
3673 | |
3674 | if (STRINGP (string)) | |
3472b6c6 | 3675 | face_id = face_at_string_position (w, string, pos, 0, &endptr, |
10d16101 KH |
3676 | DEFAULT_FACE_ID, 0); |
3677 | else | |
3472b6c6 | 3678 | face_id = face_at_buffer_position (w, pos, &endptr, |
6970f632 | 3679 | pos + 100, 0, -1); |
10d16101 KH |
3680 | face = FACE_FROM_ID (f, face_id); |
3681 | } | |
e3ee0340 KH |
3682 | if (multibyte) |
3683 | { | |
3684 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3685 | face = FACE_FROM_ID (f, face_id); | |
3686 | } | |
35027d0c | 3687 | if (! face->font) |
10d16101 | 3688 | return Qnil; |
35027d0c | 3689 | |
35027d0c KH |
3690 | XSETFONT (font_object, face->font); |
3691 | return font_object; | |
3692 | } | |
3693 | ||
3694 | ||
071132a9 KH |
3695 | #ifdef HAVE_WINDOW_SYSTEM |
3696 | ||
5a655b9f DA |
3697 | /* Check how many characters after character/byte position POS/POS_BYTE |
3698 | (at most to *LIMIT) can be displayed by the same font in the window W. | |
3699 | FACE, if non-NULL, is the face selected for the character at POS. | |
3700 | If STRING is not nil, it is the string to check instead of the current | |
3701 | buffer. In that case, FACE must be not NULL. | |
027a33c0 | 3702 | |
071132a9 KH |
3703 | The return value is the font-object for the character at POS. |
3704 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3705 | |
071132a9 KH |
3706 | It is assured that the current buffer (or STRING) is multibyte. */ |
3707 | ||
3708 | Lisp_Object | |
5a655b9f DA |
3709 | font_range (ptrdiff_t pos, ptrdiff_t pos_byte, ptrdiff_t *limit, |
3710 | struct window *w, struct face *face, Lisp_Object string) | |
35027d0c | 3711 | { |
5a655b9f | 3712 | ptrdiff_t ignore; |
35027d0c | 3713 | int c; |
071132a9 | 3714 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3715 | |
3716 | if (NILP (string)) | |
3717 | { | |
071132a9 KH |
3718 | if (! face) |
3719 | { | |
3720 | int face_id; | |
3721 | ||
3472b6c6 | 3722 | face_id = face_at_buffer_position (w, pos, &ignore, |
6970f632 | 3723 | *limit, 0, -1); |
d3d50620 | 3724 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
071132a9 | 3725 | } |
35027d0c KH |
3726 | } |
3727 | else | |
5a655b9f | 3728 | eassert (face); |
35027d0c | 3729 | |
071132a9 | 3730 | while (pos < *limit) |
35027d0c | 3731 | { |
071132a9 | 3732 | Lisp_Object category; |
35027d0c KH |
3733 | |
3734 | if (NILP (string)) | |
3735 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3736 | else | |
3737 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 | 3738 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
c805dec0 KH |
3739 | if (INTEGERP (category) |
3740 | && (XINT (category) == UNICODE_CATEGORY_Cf | |
3741 | || CHAR_VARIATION_SELECTOR_P (c))) | |
0e5d7800 | 3742 | continue; |
071132a9 | 3743 | if (NILP (font_object)) |
35027d0c | 3744 | { |
071132a9 KH |
3745 | font_object = font_for_char (face, c, pos - 1, string); |
3746 | if (NILP (font_object)) | |
3747 | return Qnil; | |
35027d0c KH |
3748 | continue; |
3749 | } | |
0e5d7800 KH |
3750 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3751 | *limit = pos - 1; | |
35027d0c | 3752 | } |
071132a9 | 3753 | return font_object; |
10d16101 | 3754 | } |
071132a9 | 3755 | #endif |
10d16101 | 3756 | |
c2f5bfd6 | 3757 | \f |
266fee4f | 3758 | /* Lisp API. */ |
c2f5bfd6 | 3759 | |
35027d0c | 3760 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3761 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3762 | Return nil otherwise. |
3763 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3764 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3765 | `font-object'. */) |
5842a27b | 3766 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3767 | { |
35027d0c KH |
3768 | if (NILP (extra_type)) |
3769 | return (FONTP (object) ? Qt : Qnil); | |
3770 | if (EQ (extra_type, Qfont_spec)) | |
3771 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3772 | if (EQ (extra_type, Qfont_entity)) | |
3773 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3774 | if (EQ (extra_type, Qfont_object)) | |
3775 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3776 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3777 | } |
3778 | ||
a7ca3326 | 3779 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, |
45eb10fb KH |
3780 | doc: /* Return a newly created font-spec with arguments as properties. |
3781 | ||
3782 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3783 | valid font property name listed below: | |
3784 | ||
3785 | `:family', `:weight', `:slant', `:width' | |
3786 | ||
3787 | They are the same as face attributes of the same name. See | |
51c01100 | 3788 | `set-face-attribute'. |
45eb10fb KH |
3789 | |
3790 | `:foundry' | |
3791 | ||
3792 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3793 | ||
3794 | `:adstyle' | |
3795 | ||
3796 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3797 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3798 | |
3799 | `:registry' | |
3800 | ||
3801 | VALUE must be a string or a symbol specifying the charset registry and | |
3802 | encoding of a font, e.g. ``iso8859-1''. | |
3803 | ||
3804 | `:size' | |
3805 | ||
3806 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3807 | specifying the font size. It specifies the font size in pixels (if |
3808 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3809 | |
3810 | `:name' | |
3811 | ||
7a18a178 | 3812 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3813 | |
3814 | `:script' | |
3815 | ||
3816 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3817 | support. It may be a symbol representing a subgroup of a script |
3818 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3819 | |
3820 | `:lang' | |
3821 | ||
3822 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3823 | e.g. `ja'. | |
3824 | ||
3825 | `:otf' | |
3826 | ||
3827 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3828 | required OpenType features. | |
3829 | ||
3830 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3831 | LANGSYS-TAG: OpenType language system tag symbol, | |
3832 | or nil for the default language system. | |
3833 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3834 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3835 | ||
3836 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3837 | must not have any of the remaining elements. | |
3838 | ||
3839 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
56dd2d86 | 3840 | be an OpenType font whose GPOS table of `thai' script's default |
c423ecca KH |
3841 | language system must contain `mark' feature. |
3842 | ||
ba3de0e8 | 3843 | usage: (font-spec ARGS...) */) |
f66c7cf8 | 3844 | (ptrdiff_t nargs, Lisp_Object *args) |
c2f5bfd6 | 3845 | { |
35027d0c | 3846 | Lisp_Object spec = font_make_spec (); |
f66c7cf8 | 3847 | ptrdiff_t i; |
c2f5bfd6 KH |
3848 | |
3849 | for (i = 0; i < nargs; i += 2) | |
3850 | { | |
cccd42d5 KH |
3851 | Lisp_Object key = args[i], val; |
3852 | ||
3853 | CHECK_SYMBOL (key); | |
3854 | if (i + 1 >= nargs) | |
3855 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3856 | val = args[i + 1]; | |
c2f5bfd6 | 3857 | |
35027d0c KH |
3858 | if (EQ (key, QCname)) |
3859 | { | |
3860 | CHECK_STRING (val); | |
3c542890 KH |
3861 | if (font_parse_name (SSDATA (val), SBYTES (val), spec) < 0) |
3862 | error ("Invalid font name: %s", SSDATA (val)); | |
35027d0c KH |
3863 | font_put_extra (spec, key, val); |
3864 | } | |
c2f5bfd6 | 3865 | else |
4485a28e | 3866 | { |
35027d0c KH |
3867 | int idx = get_font_prop_index (key); |
3868 | ||
3869 | if (idx >= 0) | |
ec6fe57c | 3870 | { |
35027d0c KH |
3871 | val = font_prop_validate (idx, Qnil, val); |
3872 | if (idx < FONT_EXTRA_INDEX) | |
3873 | ASET (spec, idx, val); | |
3874 | else | |
3875 | font_put_extra (spec, key, val); | |
ec6fe57c | 3876 | } |
35027d0c KH |
3877 | else |
3878 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3879 | } |
e950d6f1 | 3880 | } |
c2f5bfd6 KH |
3881 | return spec; |
3882 | } | |
3883 | ||
92470028 PE |
3884 | /* Return a copy of FONT as a font-spec. */ |
3885 | Lisp_Object | |
3886 | copy_font_spec (Lisp_Object font) | |
35027d0c | 3887 | { |
d26424c5 | 3888 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3889 | int i; |
3890 | ||
3891 | CHECK_FONT (font); | |
3892 | new_spec = font_make_spec (); | |
3893 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3894 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 3895 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
3896 | /* We must remove :font-entity property. */ |
3897 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3898 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3899 | { | |
3900 | if (NILP (prev)) | |
3901 | extra = XCDR (extra); | |
3902 | else | |
3903 | XSETCDR (prev, XCDR (tail)); | |
3904 | break; | |
3905 | } | |
35027d0c KH |
3906 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3907 | return new_spec; | |
3908 | } | |
3909 | ||
92470028 PE |
3910 | /* Merge font-specs FROM and TO, and return a new font-spec. |
3911 | Every specified property in FROM overrides the corresponding | |
3912 | property in TO. */ | |
3913 | Lisp_Object | |
3914 | merge_font_spec (Lisp_Object from, Lisp_Object to) | |
35027d0c KH |
3915 | { |
3916 | Lisp_Object extra, tail; | |
3917 | int i; | |
3918 | ||
3919 | CHECK_FONT (from); | |
3920 | CHECK_FONT (to); | |
92470028 | 3921 | to = copy_font_spec (to); |
35027d0c KH |
3922 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
3923 | ASET (to, i, AREF (from, i)); | |
3924 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3925 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3926 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3927 | { | |
3928 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3929 | ||
3930 | if (! NILP (slot)) | |
3931 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3932 | else | |
3933 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3934 | } | |
3935 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3936 | return to; | |
3937 | } | |
c2f5bfd6 | 3938 | |
a7ca3326 | 3939 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, |
45eb10fb | 3940 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 3941 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 3942 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 3943 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 3944 | :size, :name, :script, :otf |
5bdd4dd2 | 3945 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
3946 | In addition, if FONT is a font-entity or a font-object, values of |
3947 | :script and :otf are different from those of a font-spec as below: | |
3948 | ||
3949 | The value of :script may be a list of scripts that are supported by the font. | |
3950 | ||
3951 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
3952 | representing the OpenType features supported by the font by this form: | |
3953 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3954 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
3955 | Layout tags. */) | |
5842a27b | 3956 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 3957 | { |
35027d0c | 3958 | int idx; |
a7840ffb | 3959 | Lisp_Object val; |
c2f5bfd6 | 3960 | |
35027d0c KH |
3961 | CHECK_FONT (font); |
3962 | CHECK_SYMBOL (key); | |
e80e09b4 | 3963 | |
35027d0c | 3964 | idx = get_font_prop_index (key); |
2babb359 KH |
3965 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3966 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 3967 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 3968 | return AREF (font, idx); |
a7840ffb KH |
3969 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
3970 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
3971 | { | |
3972 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 3973 | |
f6c1c771 KH |
3974 | if (fontp->driver->otf_capability) |
3975 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 3976 | else |
f6c1c771 | 3977 | val = Fcons (Qnil, Qnil); |
a7840ffb KH |
3978 | } |
3979 | else | |
3980 | val = Fcdr (val); | |
3981 | return val; | |
c2f5bfd6 KH |
3982 | } |
3983 | ||
51cf11be AS |
3984 | #ifdef HAVE_WINDOW_SYSTEM |
3985 | ||
b1868a1a CY |
3986 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
3987 | doc: /* Return a plist of face attributes generated by FONT. | |
3988 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
3989 | The return value is a list of the form | |
3990 | ||
6f568955 | 3991 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 3992 | |
48105a6a | 3993 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
3994 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
3995 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 3996 | |
48105a6a JB |
3997 | The optional argument FRAME specifies the frame that the face attributes |
3998 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 3999 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a | 4000 | { |
d9f07150 | 4001 | struct frame *f = decode_live_frame (frame); |
b1868a1a CY |
4002 | Lisp_Object plist[10]; |
4003 | Lisp_Object val; | |
5989ba2f | 4004 | int n = 0; |
b1868a1a | 4005 | |
b1868a1a CY |
4006 | if (STRINGP (font)) |
4007 | { | |
4008 | int fontset = fs_query_fontset (font, 0); | |
4009 | Lisp_Object name = font; | |
4010 | if (fontset >= 0) | |
4011 | font = fontset_ascii (fontset); | |
4012 | font = font_spec_from_name (name); | |
4013 | if (! FONTP (font)) | |
4014 | signal_error ("Invalid font name", name); | |
4015 | } | |
4016 | else if (! FONTP (font)) | |
4017 | signal_error ("Invalid font object", font); | |
4018 | ||
b1868a1a | 4019 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4020 | if (! NILP (val)) |
4021 | { | |
4022 | plist[n++] = QCfamily; | |
4023 | plist[n++] = SYMBOL_NAME (val); | |
4024 | } | |
b1868a1a | 4025 | |
b1868a1a CY |
4026 | val = AREF (font, FONT_SIZE_INDEX); |
4027 | if (INTEGERP (val)) | |
4028 | { | |
4029 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
42143acd | 4030 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : FRAME_RES_Y (f); |
5989ba2f | 4031 | plist[n++] = QCheight; |
c3bb5465 | 4032 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4033 | } |
4034 | else if (FLOATP (val)) | |
5989ba2f CY |
4035 | { |
4036 | plist[n++] = QCheight; | |
4037 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4038 | } | |
b1868a1a | 4039 | |
b1868a1a | 4040 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4041 | if (! NILP (val)) |
4042 | { | |
4043 | plist[n++] = QCweight; | |
4044 | plist[n++] = val; | |
4045 | } | |
b1868a1a | 4046 | |
b1868a1a | 4047 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4048 | if (! NILP (val)) |
4049 | { | |
4050 | plist[n++] = QCslant; | |
4051 | plist[n++] = val; | |
4052 | } | |
b1868a1a | 4053 | |
b1868a1a | 4054 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4055 | if (! NILP (val)) |
4056 | { | |
4057 | plist[n++] = QCwidth; | |
4058 | plist[n++] = val; | |
4059 | } | |
b1868a1a | 4060 | |
5989ba2f | 4061 | return Flist (n, plist); |
b1868a1a | 4062 | } |
c2f5bfd6 | 4063 | |
51cf11be AS |
4064 | #endif |
4065 | ||
a7ca3326 | 4066 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4067 | doc: /* Set one property of FONT: give property KEY value VAL. |
4068 | FONT is a font-spec, a font-entity, or a font-object. | |
4069 | ||
4070 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4071 | accepted by the function `font-spec' (which see), VAL must be what | |
4072 | allowed in `font-spec'. | |
4073 | ||
4074 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4075 | accepted by `font-spec'. */) | |
e1ffae3b | 4076 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4077 | { |
35027d0c | 4078 | int idx; |
c2f5bfd6 | 4079 | |
35027d0c KH |
4080 | idx = get_font_prop_index (prop); |
4081 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4082 | { |
4083 | CHECK_FONT_SPEC (font); | |
4084 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4085 | } | |
c2f5bfd6 | 4086 | else |
a7840ffb KH |
4087 | { |
4088 | if (EQ (prop, QCname) | |
4089 | || EQ (prop, QCscript) | |
4090 | || EQ (prop, QClang) | |
4091 | || EQ (prop, QCotf)) | |
4092 | CHECK_FONT_SPEC (font); | |
4093 | else | |
4094 | CHECK_FONT (font); | |
4095 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4096 | } | |
c2f5bfd6 KH |
4097 | return val; |
4098 | } | |
4099 | ||
a7ca3326 | 4100 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, |
c2f5bfd6 KH |
4101 | doc: /* List available fonts matching FONT-SPEC on the current frame. |
4102 | Optional 2nd argument FRAME specifies the target frame. | |
4103 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4104 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4105 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4106 | how close they are to PREFER. */) |
5842a27b | 4107 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4108 | { |
fdb396e2 | 4109 | struct frame *f = decode_live_frame (frame); |
72d36834 | 4110 | Lisp_Object vec, list; |
d311d28c | 4111 | EMACS_INT n = 0; |
c2f5bfd6 | 4112 | |
35027d0c | 4113 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4114 | if (! NILP (num)) |
4115 | { | |
4116 | CHECK_NUMBER (num); | |
4117 | n = XINT (num); | |
4118 | if (n <= 0) | |
4119 | return Qnil; | |
4120 | } | |
4121 | if (! NILP (prefer)) | |
35027d0c | 4122 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4123 | |
fdb396e2 | 4124 | list = font_list_entities (f, font_spec); |
72d36834 | 4125 | if (NILP (list)) |
c2f5bfd6 | 4126 | return Qnil; |
72d36834 KH |
4127 | if (NILP (XCDR (list)) |
4128 | && ASIZE (XCAR (list)) == 1) | |
6c6f1994 | 4129 | return list1 (AREF (XCAR (list), 0)); |
c2f5bfd6 KH |
4130 | |
4131 | if (! NILP (prefer)) | |
fdb396e2 | 4132 | vec = font_sort_entities (list, prefer, f, 0); |
72d36834 KH |
4133 | else |
4134 | vec = font_vconcat_entity_vectors (list); | |
4135 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4136 | { |
72d36834 | 4137 | Lisp_Object args[2]; |
c2f5bfd6 | 4138 | |
72d36834 KH |
4139 | args[0] = vec; |
4140 | args[1] = Qnil; | |
4141 | list = Fappend (2, args); | |
4142 | } | |
4143 | else | |
4144 | { | |
4145 | for (list = Qnil, n--; n >= 0; n--) | |
4146 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4147 | } |
4148 | return list; | |
4149 | } | |
4150 | ||
35027d0c | 4151 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4152 | doc: /* List available font families on the current frame. |
d9f07150 | 4153 | If FRAME is omitted or nil, the selected frame is used. */) |
5842a27b | 4154 | (Lisp_Object frame) |
c2f5bfd6 | 4155 | { |
d9f07150 | 4156 | struct frame *f = decode_live_frame (frame); |
c2f5bfd6 | 4157 | struct font_driver_list *driver_list; |
d9f07150 DA |
4158 | Lisp_Object list = Qnil; |
4159 | ||
c2f5bfd6 KH |
4160 | for (driver_list = f->font_driver_list; driver_list; |
4161 | driver_list = driver_list->next) | |
4162 | if (driver_list->driver->list_family) | |
4163 | { | |
fdb396e2 | 4164 | Lisp_Object val = driver_list->driver->list_family (f); |
13bf758b | 4165 | Lisp_Object tail = list; |
c2f5bfd6 | 4166 | |
13bf758b CY |
4167 | for (; CONSP (val); val = XCDR (val)) |
4168 | if (NILP (Fmemq (XCAR (val), tail)) | |
4169 | && SYMBOLP (XCAR (val))) | |
4170 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4171 | } |
4172 | return list; | |
4173 | } | |
4174 | ||
4175 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4176 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4177 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4178 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4179 | { |
4180 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4181 | ||
4182 | if (CONSP (val)) | |
4183 | val = XCAR (val); | |
4184 | return val; | |
4185 | } | |
4186 | ||
a7ca3326 | 4187 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4188 | doc: /* Return XLFD name of FONT. |
4189 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4190 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4191 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
56dd2d86 | 4192 | the consecutive wildcards are folded into one. */) |
5842a27b | 4193 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4194 | { |
4195 | char name[256]; | |
cb1caeaf | 4196 | int namelen, pixel_size = 0; |
c2f5bfd6 | 4197 | |
35027d0c KH |
4198 | CHECK_FONT (font); |
4199 | ||
4200 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4201 | { |
35027d0c | 4202 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4203 | |
35027d0c KH |
4204 | if (STRINGP (font_name) |
4205 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4206 | { |
4207 | if (NILP (fold_wildcards)) | |
4208 | return font_name; | |
51b59d79 | 4209 | strcpy (name, SSDATA (font_name)); |
cb1caeaf | 4210 | namelen = SBYTES (font_name); |
d0ab1ebe KH |
4211 | goto done; |
4212 | } | |
35027d0c | 4213 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4214 | } |
cb1caeaf DA |
4215 | namelen = font_unparse_xlfd (font, pixel_size, name, 256); |
4216 | if (namelen < 0) | |
c2f5bfd6 | 4217 | return Qnil; |
d0ab1ebe KH |
4218 | done: |
4219 | if (! NILP (fold_wildcards)) | |
4220 | { | |
4221 | char *p0 = name, *p1; | |
4222 | ||
4223 | while ((p1 = strstr (p0, "-*-*"))) | |
4224 | { | |
4225 | strcpy (p1, p1 + 2); | |
cb1caeaf | 4226 | namelen -= 2; |
d0ab1ebe KH |
4227 | p0 = p1; |
4228 | } | |
4229 | } | |
4230 | ||
cb1caeaf | 4231 | return make_string (name, namelen); |
c2f5bfd6 KH |
4232 | } |
4233 | ||
a45543bc DA |
4234 | void |
4235 | clear_font_cache (struct frame *f) | |
4236 | { | |
4237 | struct font_driver_list *driver_list = f->font_driver_list; | |
4238 | ||
4239 | for (; driver_list; driver_list = driver_list->next) | |
4240 | if (driver_list->on) | |
4241 | { | |
4242 | Lisp_Object val, tmp, cache = driver_list->driver->get_cache (f); | |
4243 | ||
4244 | val = XCDR (cache); | |
4245 | while (! NILP (val) | |
4246 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
4247 | val = XCDR (val); | |
4248 | eassert (! NILP (val)); | |
4249 | tmp = XCDR (XCAR (val)); | |
4250 | if (XINT (XCAR (tmp)) == 0) | |
4251 | { | |
4252 | font_clear_cache (f, XCAR (val), driver_list->driver); | |
4253 | XSETCDR (cache, XCDR (val)); | |
4254 | } | |
4255 | } | |
4256 | } | |
4257 | ||
c2f5bfd6 | 4258 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, |
a45543bc | 4259 | doc: /* Clear font cache of each frame. */) |
5842a27b | 4260 | (void) |
c2f5bfd6 KH |
4261 | { |
4262 | Lisp_Object list, frame; | |
4263 | ||
4264 | FOR_EACH_FRAME (list, frame) | |
a45543bc | 4265 | clear_font_cache (XFRAME (frame)); |
c2f5bfd6 KH |
4266 | |
4267 | return Qnil; | |
4268 | } | |
4269 | ||
071132a9 KH |
4270 | \f |
4271 | void | |
971de7fb | 4272 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4273 | { |
071132a9 | 4274 | struct font *font = XFONT_OBJECT (font_object); |
d311d28c | 4275 | unsigned code = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); |
071132a9 | 4276 | struct font_metrics metrics; |
c2f5bfd6 | 4277 | |
d311d28c | 4278 | LGLYPH_SET_CODE (glyph, code); |
071132a9 KH |
4279 | font->driver->text_extents (font, &code, 1, &metrics); |
4280 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4281 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4282 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4283 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4284 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4285 | } |
4286 | ||
c2f5bfd6 | 4287 | |
071132a9 KH |
4288 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4289 | doc: /* Shape the glyph-string GSTRING. | |
4290 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4291 | to get the correct visual image of character sequences set in the | |
4292 | header of the glyph-string. | |
1701724c | 4293 | |
071132a9 | 4294 | If the shaping was successful, the value is GSTRING itself or a newly |
ea964864 KH |
4295 | created glyph-string. Otherwise, the value is nil. |
4296 | ||
4297 | See the documentation of `composition-get-gstring' for the format of | |
4298 | GSTRING. */) | |
5842a27b | 4299 | (Lisp_Object gstring) |
1701724c KH |
4300 | { |
4301 | struct font *font; | |
071132a9 | 4302 | Lisp_Object font_object, n, glyph; |
634b8cac | 4303 | ptrdiff_t i, from, to; |
ba3de0e8 | 4304 | |
071132a9 KH |
4305 | if (! composition_gstring_p (gstring)) |
4306 | signal_error ("Invalid glyph-string: ", gstring); | |
4307 | if (! NILP (LGSTRING_ID (gstring))) | |
4308 | return gstring; | |
4309 | font_object = LGSTRING_FONT (gstring); | |
4310 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4311 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4312 | if (! font->driver->shape) |
4313 | return Qnil; | |
4314 | ||
40fb53d6 KH |
4315 | /* Try at most three times with larger gstring each time. */ |
4316 | for (i = 0; i < 3; i++) | |
4317 | { | |
40fb53d6 KH |
4318 | n = font->driver->shape (gstring); |
4319 | if (INTEGERP (n)) | |
4320 | break; | |
071132a9 | 4321 | gstring = larger_vector (gstring, |
d311d28c | 4322 | LGSTRING_GLYPH_LEN (gstring), -1); |
40fb53d6 | 4323 | } |
071132a9 | 4324 | if (i == 3 || XINT (n) == 0) |
1701724c | 4325 | return Qnil; |
dfe3c90f KH |
4326 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4327 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4328 | |
ea964864 | 4329 | /* Check FROM_IDX and TO_IDX of each GLYPH in GSTRING to assure that |
85a43e2e KH |
4330 | GLYPHS covers all characters (except for the last few ones) in |
4331 | GSTRING. More formally, provided that NCHARS is the number of | |
4332 | characters in GSTRING and GLYPHS[i] is the ith glyph, FROM_IDX | |
4333 | and TO_IDX of each glyph must satisfy these conditions: | |
ea964864 KH |
4334 | |
4335 | GLYPHS[0].FROM_IDX == 0 | |
4336 | GLYPHS[i].FROM_IDX <= GLYPHS[i].TO_IDX | |
4337 | if (GLYPHS[i].FROM_IDX == GLYPHS[i-1].FROM_IDX) | |
4338 | ;; GLYPHS[i] and GLYPHS[i-1] belongs to the same grapheme cluster | |
4339 | GLYPHS[i].TO_IDX == GLYPHS[i-1].TO_IDX | |
4340 | else | |
4341 | ;; Be sure to cover all characters. | |
85a43e2e | 4342 | GLYPHS[i].FROM_IDX == GLYPHS[i-1].TO_IDX + 1 */ |
071132a9 | 4343 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4344 | from = LGLYPH_FROM (glyph); |
4345 | to = LGLYPH_TO (glyph); | |
ea964864 KH |
4346 | if (from != 0 || to < from) |
4347 | goto shaper_error; | |
4348 | for (i = 1; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 | 4349 | { |
ea964864 KH |
4350 | glyph = LGSTRING_GLYPH (gstring, i); |
4351 | if (NILP (glyph)) | |
071132a9 | 4352 | break; |
ea964864 KH |
4353 | if (! (LGLYPH_FROM (glyph) <= LGLYPH_TO (glyph) |
4354 | && (LGLYPH_FROM (glyph) == from | |
4355 | ? LGLYPH_TO (glyph) == to | |
4356 | : LGLYPH_FROM (glyph) == to + 1))) | |
4357 | goto shaper_error; | |
4358 | from = LGLYPH_FROM (glyph); | |
4359 | to = LGLYPH_TO (glyph); | |
10d16101 | 4360 | } |
071132a9 | 4361 | return composition_gstring_put_cache (gstring, XINT (n)); |
ea964864 KH |
4362 | |
4363 | shaper_error: | |
4364 | return Qnil; | |
c2f5bfd6 KH |
4365 | } |
4366 | ||
78a2f9cd KH |
4367 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4368 | 2, 2, 0, | |
4369 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4370 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4371 | where | |
c0943d3d | 4372 | VARIATION-SELECTOR is a character code of variation selection |
78a2f9cd KH |
4373 | (#xFE00..#xFE0F or #xE0100..#xE01EF) |
4374 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4375 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4376 | { |
4377 | unsigned variations[256]; | |
4378 | struct font *font; | |
4379 | int i, n; | |
4380 | Lisp_Object val; | |
4381 | ||
4382 | CHECK_FONT_OBJECT (font_object); | |
4383 | CHECK_CHARACTER (character); | |
4384 | font = XFONT_OBJECT (font_object); | |
4385 | if (! font->driver->get_variation_glyphs) | |
4386 | return Qnil; | |
4387 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4388 | if (! n) | |
4389 | return Qnil; | |
4390 | val = Qnil; | |
4391 | for (i = 0; i < 255; i++) | |
4392 | if (variations[i]) | |
4393 | { | |
78a2f9cd | 4394 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); |
be44ca6c | 4395 | Lisp_Object code = INTEGER_TO_CONS (variations[i]); |
78a2f9cd KH |
4396 | val = Fcons (Fcons (make_number (vs), code), val); |
4397 | } | |
4398 | return val; | |
4399 | } | |
4400 | ||
6a3dadd2 KH |
4401 | #if 0 |
4402 | ||
a7ca3326 | 4403 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
733fd013 | 4404 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. |
51c01100 | 4405 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4406 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4407 | where |
4408 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4409 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4410 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4411 | |
4412 | If LANGYS is nil, the default langsys is selected. | |
4413 | ||
51c01100 JB |
4414 | The features are applied in the order they appear in the list. The |
4415 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4416 | list, and the remaining features are ignored. For instance, (vatu |
4417 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4418 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4419 | |
4420 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4421 | the glyph-string GSTRING-IN. |
e80e09b4 | 4422 | |
51c01100 | 4423 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4424 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4425 | this case, the value is the number of produced glyphs. | |
4426 | ||
4427 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4428 | the value is 0. | |
4429 | ||
51c01100 | 4430 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4431 | produced in GSTRING-OUT, and the value is nil. |
4432 | ||
56dd2d86 | 4433 | See the documentation of `composition-get-gstring' for the format of |
e80e09b4 | 4434 | glyph-string. */) |
5842a27b | 4435 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4436 | { |
4437 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4438 | Lisp_Object val; |
4439 | struct font *font; | |
e80e09b4 KH |
4440 | int len, num; |
4441 | ||
733fd013 | 4442 | check_otf_features (otf_features); |
35027d0c KH |
4443 | CHECK_FONT_OBJECT (font_object); |
4444 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4445 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4446 | error ("Font backend %s can't drive OpenType GSUB table", |
4447 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4448 | CHECK_CONS (otf_features); |
4449 | CHECK_SYMBOL (XCAR (otf_features)); | |
4450 | val = XCDR (otf_features); | |
4451 | CHECK_SYMBOL (XCAR (val)); | |
4452 | val = XCDR (otf_features); | |
4453 | if (! NILP (val)) | |
4454 | CHECK_CONS (val); | |
e80e09b4 KH |
4455 | len = check_gstring (gstring_in); |
4456 | CHECK_VECTOR (gstring_out); | |
4457 | CHECK_NATNUM (from); | |
4458 | CHECK_NATNUM (to); | |
4459 | CHECK_NATNUM (index); | |
4460 | ||
4461 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4462 | args_out_of_range_3 (from, to, make_number (len)); | |
4463 | if (XINT (index) >= ASIZE (gstring_out)) | |
4464 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4465 | num = font->driver->otf_drive (font, otf_features, |
4466 | gstring_in, XINT (from), XINT (to), | |
4467 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4468 | if (num < 0) |
4469 | return Qnil; | |
4470 | return make_number (num); | |
4471 | } | |
4472 | ||
a7ca3326 | 4473 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
e80e09b4 KH |
4474 | 3, 3, 0, |
4475 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4476 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4477 | in this format: |
4478 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4479 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4480 | |
4481 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4482 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4483 | character code corresponding to the glyph or nil if there's no | |
4484 | corresponding character. */) | |
5842a27b | 4485 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4486 | { |
4487 | struct font *font; | |
4488 | Lisp_Object gstring_in, gstring_out, g; | |
4489 | Lisp_Object alternates; | |
4490 | int i, num; | |
4491 | ||
4492 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4493 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4494 | error ("Font backend %s can't drive OpenType GSUB table", |
4495 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4496 | CHECK_CHARACTER (character); |
733fd013 | 4497 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4498 | |
4499 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4500 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4501 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4502 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4503 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4504 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4505 | gstring_out = Ffont_make_gstring (font_object, |
4506 | make_number (ASIZE (gstring_out) * 2)); | |
4507 | alternates = Qnil; | |
4508 | for (i = 0; i < num; i++) | |
4509 | { | |
4510 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4511 | int c = LGLYPH_CHAR (g); |
4512 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4513 | |
4514 | alternates = Fcons (Fcons (make_number (code), | |
4515 | c > 0 ? make_number (c) : Qnil), | |
4516 | alternates); | |
4517 | } | |
4518 | return Fnreverse (alternates); | |
4519 | } | |
6a3dadd2 | 4520 | #endif /* 0 */ |
c2f5bfd6 KH |
4521 | |
4522 | #ifdef FONT_DEBUG | |
4523 | ||
4524 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4525 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4526 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 | 4527 | { |
d311d28c | 4528 | EMACS_INT isize; |
d9f07150 | 4529 | struct frame *f = decode_live_frame (frame); |
c2f5bfd6 KH |
4530 | |
4531 | CHECK_FONT_ENTITY (font_entity); | |
51c01100 | 4532 | |
35027d0c KH |
4533 | if (NILP (size)) |
4534 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4535 | else | |
4536 | { | |
4537 | CHECK_NUMBER_OR_FLOAT (size); | |
4538 | if (FLOATP (size)) | |
42143acd | 4539 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), FRAME_RES_Y (f)); |
35027d0c KH |
4540 | else |
4541 | isize = XINT (size); | |
d311d28c PE |
4542 | if (! (INT_MIN <= isize && isize <= INT_MAX)) |
4543 | args_out_of_range (font_entity, size); | |
35027d0c KH |
4544 | if (isize == 0) |
4545 | isize = 120; | |
4546 | } | |
d9f07150 | 4547 | return font_open_entity (f, font_entity, isize); |
c2f5bfd6 KH |
4548 | } |
4549 | ||
4550 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4551 | doc: /* Close FONT-OBJECT. */) | |
5842a27b | 4552 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4553 | { |
4554 | CHECK_FONT_OBJECT (font_object); | |
d9f07150 | 4555 | font_close_object (decode_live_frame (frame), font_object); |
c2f5bfd6 KH |
4556 | return Qnil; |
4557 | } | |
4558 | ||
4559 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4560 | doc: /* Return information about FONT-OBJECT. |
4561 | The value is a vector: | |
4562 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4563 | CAPABILITY ] |
e80e09b4 | 4564 | |
56dd2d86 | 4565 | NAME is the font name, a string (or nil if the font backend doesn't |
e80e09b4 KH |
4566 | provide a name). |
4567 | ||
56dd2d86 | 4568 | FILENAME is the font file name, a string (or nil if the font backend |
e80e09b4 KH |
4569 | doesn't provide a file name). |
4570 | ||
4571 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4572 | ||
027a33c0 | 4573 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4574 | |
4575 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4576 | pixels. |
e80e09b4 | 4577 | |
e0708580 KH |
4578 | CAPABILITY is a list whose first element is a symbol representing the |
4579 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4580 | remaining elements describe the details of the font capability. |
e0708580 KH |
4581 | |
4582 | If the font is OpenType font, the form of the list is | |
4583 | \(opentype GSUB GPOS) | |
4584 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4585 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4586 | lists of the format: | |
4587 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4588 | ||
4589 | If the font is not OpenType font, currently the length of the form is | |
4590 | one. | |
e80e09b4 KH |
4591 | |
4592 | SCRIPT is a symbol representing OpenType script tag. | |
4593 | ||
4594 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4595 | representing the default langsys. | |
4596 | ||
51c01100 | 4597 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4598 | |
51c01100 | 4599 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4600 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4601 | { |
4602 | struct font *font; | |
4603 | Lisp_Object val; | |
4604 | ||
4605 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4606 | ||
25721f5b | 4607 | val = make_uninit_vector (9); |
35027d0c KH |
4608 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4609 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4610 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4611 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4612 | ASET (val, 4, make_number (font->ascent)); |
4613 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4614 | ASET (val, 6, make_number (font->space_width)); |
4615 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4616 | if (font->driver->otf_capability) |
e0708580 | 4617 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
25721f5b DA |
4618 | else |
4619 | ASET (val, 8, Qnil); | |
c2f5bfd6 KH |
4620 | return val; |
4621 | } | |
4622 | ||
a7840ffb KH |
4623 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4624 | doc: | |
4625 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4626 | FROM and TO are positions (integers or markers) specifying a region | |
4627 | of the current buffer. | |
4628 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4629 | vector containing the target characters. | |
4630 | ||
4631 | Each element is a vector containing information of a glyph in this format: | |
4632 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4633 | where | |
4634 | FROM is an index numbers of a character the glyph corresponds to. | |
4635 | TO is the same as FROM. | |
4636 | C is the character of the glyph. | |
4637 | CODE is the glyph-code of C in FONT-OBJECT. | |
4638 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4639 | ADJUSTMENT is always nil. | |
4640 | If FONT-OBJECT doesn't have a glyph for a character, | |
4641 | the corresponding element is nil. */) | |
e1ffae3b KH |
4642 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4643 | Lisp_Object object) | |
c2f5bfd6 KH |
4644 | { |
4645 | struct font *font; | |
d311d28c | 4646 | ptrdiff_t i, len; |
a7840ffb KH |
4647 | Lisp_Object *chars, vec; |
4648 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4649 | |
4650 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4651 | if (NILP (object)) |
4652 | { | |
d311d28c | 4653 | ptrdiff_t charpos, bytepos; |
a7840ffb KH |
4654 | |
4655 | validate_region (&from, &to); | |
4656 | if (EQ (from, to)) | |
4657 | return Qnil; | |
4658 | len = XFASTINT (to) - XFASTINT (from); | |
4659 | SAFE_ALLOCA_LISP (chars, len); | |
4660 | charpos = XFASTINT (from); | |
4661 | bytepos = CHAR_TO_BYTE (charpos); | |
4662 | for (i = 0; charpos < XFASTINT (to); i++) | |
4663 | { | |
13a547c6 | 4664 | int c; |
a7840ffb KH |
4665 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); |
4666 | chars[i] = make_number (c); | |
4667 | } | |
4668 | } | |
4669 | else if (STRINGP (object)) | |
4670 | { | |
4671 | const unsigned char *p; | |
4672 | ||
4673 | CHECK_NUMBER (from); | |
4674 | CHECK_NUMBER (to); | |
4675 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4676 | || XINT (to) > SCHARS (object)) | |
4677 | args_out_of_range_3 (object, from, to); | |
4678 | if (EQ (from, to)) | |
4679 | return Qnil; | |
4680 | len = XFASTINT (to) - XFASTINT (from); | |
4681 | SAFE_ALLOCA_LISP (chars, len); | |
4682 | p = SDATA (object); | |
4683 | if (STRING_MULTIBYTE (object)) | |
4684 | for (i = 0; i < len; i++) | |
4685 | { | |
13a547c6 | 4686 | int c = STRING_CHAR_ADVANCE (p); |
a7840ffb KH |
4687 | chars[i] = make_number (c); |
4688 | } | |
4689 | else | |
4690 | for (i = 0; i < len; i++) | |
4691 | chars[i] = make_number (p[i]); | |
4692 | } | |
4693 | else | |
4694 | { | |
4695 | CHECK_VECTOR (object); | |
4696 | CHECK_NUMBER (from); | |
4697 | CHECK_NUMBER (to); | |
4698 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4699 | || XINT (to) > ASIZE (object)) | |
4700 | args_out_of_range_3 (object, from, to); | |
4701 | if (EQ (from, to)) | |
4702 | return Qnil; | |
4703 | len = XFASTINT (to) - XFASTINT (from); | |
4704 | for (i = 0; i < len; i++) | |
4705 | { | |
4706 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4707 | CHECK_CHARACTER (elt); | |
4708 | } | |
4939150c | 4709 | chars = aref_addr (object, XFASTINT (from)); |
a7840ffb KH |
4710 | } |
4711 | ||
3bfc46eb | 4712 | vec = make_uninit_vector (len); |
c2f5bfd6 KH |
4713 | for (i = 0; i < len; i++) |
4714 | { | |
a7840ffb KH |
4715 | Lisp_Object g; |
4716 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 KH |
4717 | unsigned code; |
4718 | struct font_metrics metrics; | |
4719 | ||
78834453 | 4720 | code = font->driver->encode_char (font, c); |
c2f5bfd6 | 4721 | if (code == FONT_INVALID_CODE) |
3bfc46eb DA |
4722 | { |
4723 | ASET (vec, i, Qnil); | |
4724 | continue; | |
4725 | } | |
42926ec8 | 4726 | g = LGLYPH_NEW (); |
a7840ffb KH |
4727 | LGLYPH_SET_FROM (g, i); |
4728 | LGLYPH_SET_TO (g, i); | |
4729 | LGLYPH_SET_CHAR (g, c); | |
4730 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4731 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4732 | LGLYPH_SET_WIDTH (g, metrics.width); |
4733 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4734 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4735 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4736 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4737 | ASET (vec, i, g); | |
4738 | } | |
4739 | if (! VECTORP (object)) | |
4740 | SAFE_FREE (); | |
c2f5bfd6 KH |
4741 | return vec; |
4742 | } | |
4743 | ||
ec6fe57c | 4744 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4745 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4746 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4747 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4748 | { |
4749 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4750 | CHECK_FONT (font); |
ec6fe57c KH |
4751 | |
4752 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4753 | } | |
4754 | ||
1701724c | 4755 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4756 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 | 4757 | Optional second arg WINDOW, if non-nil, is a window displaying |
aee5b18e KH |
4758 | the current buffer. It defaults to the currently selected window. |
4759 | Optional third arg STRING, if non-nil, is a string containing the target | |
4760 | character at index specified by POSITION. */) | |
5842a27b | 4761 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 | 4762 | { |
b9e9df47 | 4763 | struct window *w = decode_live_window (window); |
10d16101 | 4764 | |
1701724c KH |
4765 | if (NILP (string)) |
4766 | { | |
e74aeda8 | 4767 | if (XBUFFER (w->contents) != current_buffer) |
aee5b18e | 4768 | error ("Specified window is not displaying the current buffer."); |
1701724c | 4769 | CHECK_NUMBER_COERCE_MARKER (position); |
d311d28c | 4770 | if (! (BEGV <= XINT (position) && XINT (position) < ZV)) |
1701724c | 4771 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); |
1701724c KH |
4772 | } |
4773 | else | |
4774 | { | |
1701724c KH |
4775 | CHECK_NUMBER (position); |
4776 | CHECK_STRING (string); | |
a0d7415f | 4777 | if (! (0 <= XINT (position) && XINT (position) < SCHARS (string))) |
1701724c | 4778 | args_out_of_range (string, position); |
1701724c | 4779 | } |
10d16101 | 4780 | |
b6a9e8b1 | 4781 | return font_at (-1, XINT (position), NULL, w, string); |
10d16101 KH |
4782 | } |
4783 | ||
c2f5bfd6 KH |
4784 | #if 0 |
4785 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4786 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4787 | The value is a number of glyphs drawn. | |
4788 | Type C-l to recover what previously shown. */) | |
5842a27b | 4789 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4790 | { |
4791 | Lisp_Object frame = selected_frame; | |
a10c8269 | 4792 | struct frame *f = XFRAME (frame); |
c2f5bfd6 KH |
4793 | struct font *font; |
4794 | struct face *face; | |
4795 | int i, len, width; | |
4796 | unsigned *code; | |
4797 | ||
4798 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4799 | CHECK_STRING (string); | |
4800 | len = SCHARS (string); | |
4801 | code = alloca (sizeof (unsigned) * len); | |
4802 | for (i = 0; i < len; i++) | |
4803 | { | |
4804 | Lisp_Object ch = Faref (string, make_number (i)); | |
4805 | Lisp_Object val; | |
4806 | int c = XINT (ch); | |
4807 | ||
4808 | code[i] = font->driver->encode_char (font, c); | |
4809 | if (code[i] == FONT_INVALID_CODE) | |
4810 | break; | |
4811 | } | |
4812 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4813 | face->fontp = font; | |
4814 | if (font->driver->prepare_face) | |
4815 | font->driver->prepare_face (f, face); | |
4816 | width = font->driver->text_extents (font, code, i, NULL); | |
4817 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4818 | if (font->driver->done_face) | |
4819 | font->driver->done_face (f, face); | |
4820 | face->fontp = NULL; | |
4821 | return make_number (len); | |
4822 | } | |
4823 | #endif | |
4824 | ||
4825 | #endif /* FONT_DEBUG */ | |
4826 | ||
a266686a KH |
4827 | #ifdef HAVE_WINDOW_SYSTEM |
4828 | ||
72606e45 KH |
4829 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4830 | doc: /* Return information about a font named NAME on frame FRAME. | |
4831 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4832 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4833 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4834 | where | |
4835 | OPENED-NAME is the name used for opening the font, | |
4836 | FULL-NAME is the full name of the font, | |
06f19b91 | 4837 | SIZE is the pixelsize of the font, |
65e7ca35 | 4838 | HEIGHT is the pixel-height of the font (i.e., ascent + descent), |
72606e45 KH |
4839 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4840 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4841 | how to compose characters. | |
4842 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4843 | (Lisp_Object name, Lisp_Object frame) |
72606e45 | 4844 | { |
d9f07150 | 4845 | struct frame *f; |
72606e45 KH |
4846 | struct font *font; |
4847 | Lisp_Object info; | |
4848 | Lisp_Object font_object; | |
4849 | ||
72606e45 KH |
4850 | if (! FONTP (name)) |
4851 | CHECK_STRING (name); | |
7452b7bd | 4852 | f = decode_window_system_frame (frame); |
72606e45 KH |
4853 | |
4854 | if (STRINGP (name)) | |
4855 | { | |
4856 | int fontset = fs_query_fontset (name, 0); | |
4857 | ||
4858 | if (fontset >= 0) | |
4859 | name = fontset_ascii (fontset); | |
d7ea76b4 | 4860 | font_object = font_open_by_name (f, name); |
72606e45 KH |
4861 | } |
4862 | else if (FONT_OBJECT_P (name)) | |
4863 | font_object = name; | |
4864 | else if (FONT_ENTITY_P (name)) | |
4865 | font_object = font_open_entity (f, name, 0); | |
4866 | else | |
4867 | { | |
4868 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4869 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4870 | ||
4871 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4872 | } | |
4873 | if (NILP (font_object)) | |
4874 | return Qnil; | |
4875 | font = XFONT_OBJECT (font_object); | |
4876 | ||
25721f5b | 4877 | info = make_uninit_vector (7); |
28be1ada DA |
4878 | ASET (info, 0, AREF (font_object, FONT_NAME_INDEX)); |
4879 | ASET (info, 1, AREF (font_object, FONT_FULLNAME_INDEX)); | |
4880 | ASET (info, 2, make_number (font->pixel_size)); | |
4881 | ASET (info, 3, make_number (font->height)); | |
4882 | ASET (info, 4, make_number (font->baseline_offset)); | |
4883 | ASET (info, 5, make_number (font->relative_compose)); | |
4884 | ASET (info, 6, make_number (font->default_ascent)); | |
72606e45 KH |
4885 | |
4886 | #if 0 | |
4887 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4888 | close it now. Perhaps, we should manage font-objects | |
4889 | by `reference-count'. */ | |
4890 | font_close_object (f, font_object); | |
4891 | #endif | |
4892 | return info; | |
4893 | } | |
a266686a | 4894 | #endif |
72606e45 | 4895 | |
c2f5bfd6 | 4896 | \f |
d0ab1ebe KH |
4897 | #define BUILD_STYLE_TABLE(TBL) \ |
4898 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4899 | ||
4900 | static Lisp_Object | |
971de7fb | 4901 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
4902 | { |
4903 | int i, j; | |
4904 | Lisp_Object table, elt; | |
17ab8f5d | 4905 | |
3bfc46eb | 4906 | table = make_uninit_vector (nelement); |
d0ab1ebe KH |
4907 | for (i = 0; i < nelement; i++) |
4908 | { | |
4909 | for (j = 0; entry[i].names[j]; j++); | |
4910 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4911 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4912 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 4913 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
4914 | ASET (table, i, elt); |
4915 | } | |
4916 | return table; | |
4917 | } | |
4918 | ||
d0818984 KH |
4919 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4920 | If ACTION is not nil, that is added to the log when font_add_log is | |
4921 | called next time. At that time, ACTION is set back to nil. */ | |
4922 | static Lisp_Object Vfont_log_deferred; | |
4923 | ||
4924 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4925 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4926 | opening), ARG is the argument for the action, and RESULT is the | |
4927 | result of the action. */ | |
d0ab1ebe | 4928 | void |
675e2c69 | 4929 | font_add_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe | 4930 | { |
13a547c6 | 4931 | Lisp_Object val; |
d0ab1ebe KH |
4932 | int i; |
4933 | ||
d0ab1ebe KH |
4934 | if (EQ (Vfont_log, Qt)) |
4935 | return; | |
d0818984 KH |
4936 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4937 | { | |
51b59d79 | 4938 | char *str = SSDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4939 | |
4940 | ASET (Vfont_log_deferred, 0, Qnil); | |
4941 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
4942 | AREF (Vfont_log_deferred, 2)); | |
4943 | } | |
4944 | ||
d0ab1ebe | 4945 | if (FONTP (arg)) |
db716644 KH |
4946 | { |
4947 | Lisp_Object tail, elt; | |
4948 | Lisp_Object equalstr = build_string ("="); | |
4949 | ||
4950 | val = Ffont_xlfd_name (arg, Qt); | |
4951 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
4952 | tail = XCDR (tail)) | |
4953 | { | |
4954 | elt = XCAR (tail); | |
49f9c344 KH |
4955 | if (EQ (XCAR (elt), QCscript) |
4956 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4957 | val = concat3 (val, SYMBOL_NAME (QCscript), |
4958 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4959 | else if (EQ (XCAR (elt), QClang) |
4960 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4961 | val = concat3 (val, SYMBOL_NAME (QClang), |
4962 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4963 | else if (EQ (XCAR (elt), QCotf) |
4964 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
4965 | val = concat3 (val, SYMBOL_NAME (QCotf), |
4966 | concat2 (equalstr, | |
4967 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
4968 | } | |
4969 | arg = val; | |
4970 | } | |
72d36834 KH |
4971 | |
4972 | if (CONSP (result) | |
4973 | && VECTORP (XCAR (result)) | |
4974 | && ASIZE (XCAR (result)) > 0 | |
4975 | && FONTP (AREF (XCAR (result), 0))) | |
4976 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 4977 | if (FONTP (result)) |
d26424c5 KH |
4978 | { |
4979 | val = Ffont_xlfd_name (result, Qt); | |
4980 | if (! FONT_SPEC_P (result)) | |
4981 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
4982 | build_string (":"), val); | |
4983 | result = val; | |
4984 | } | |
d0ab1ebe KH |
4985 | else if (CONSP (result)) |
4986 | { | |
13a547c6 | 4987 | Lisp_Object tail; |
d0ab1ebe KH |
4988 | result = Fcopy_sequence (result); |
4989 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
4990 | { | |
4991 | val = XCAR (tail); | |
4992 | if (FONTP (val)) | |
4993 | val = Ffont_xlfd_name (val, Qt); | |
4994 | XSETCAR (tail, val); | |
4995 | } | |
4996 | } | |
4997 | else if (VECTORP (result)) | |
4998 | { | |
4999 | result = Fcopy_sequence (result); | |
5000 | for (i = 0; i < ASIZE (result); i++) | |
5001 | { | |
5002 | val = AREF (result, i); | |
5003 | if (FONTP (val)) | |
5004 | val = Ffont_xlfd_name (val, Qt); | |
5005 | ASET (result, i, val); | |
5006 | } | |
5007 | } | |
5008 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
5009 | } | |
5010 | ||
d0818984 KH |
5011 | /* Record a font-related logging data to be added to Vfont_log when |
5012 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
5013 | as font_add_log. */ | |
5014 | ||
5015 | void | |
675e2c69 | 5016 | font_deferred_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 5017 | { |
652b9560 KH |
5018 | if (EQ (Vfont_log, Qt)) |
5019 | return; | |
d0818984 KH |
5020 | ASET (Vfont_log_deferred, 0, build_string (action)); |
5021 | ASET (Vfont_log_deferred, 1, arg); | |
5022 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 5023 | } |
d0818984 | 5024 | |
c2f5bfd6 | 5025 | void |
971de7fb | 5026 | syms_of_font (void) |
c2f5bfd6 | 5027 | { |
4007dd1c KH |
5028 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
5029 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
5030 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5031 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5032 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5033 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5034 | |
1701724c KH |
5035 | staticpro (&font_charset_alist); |
5036 | font_charset_alist = Qnil; | |
5037 | ||
e0708580 | 5038 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5039 | |
9e1bb909 | 5040 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5041 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5042 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5043 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5044 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5045 | |
071132a9 KH |
5046 | DEFSYM (QCf, "Cf"); |
5047 | ||
c2f5bfd6 | 5048 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5049 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5050 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5051 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5052 | |
5053 | DEFSYM (QCfoundry, ":foundry"); | |
5054 | DEFSYM (QCadstyle, ":adstyle"); | |
5055 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5056 | DEFSYM (QCspacing, ":spacing"); |
5057 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5058 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5059 | DEFSYM (QCavgwidth, ":avgwidth"); |
5060 | DEFSYM (QCfont_entity, ":font-entity"); | |
5061 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5062 | |
ec6fe57c KH |
5063 | DEFSYM (Qc, "c"); |
5064 | DEFSYM (Qm, "m"); | |
5065 | DEFSYM (Qp, "p"); | |
5066 | DEFSYM (Qd, "d"); | |
5067 | ||
cf702558 CY |
5068 | DEFSYM (Qja, "ja"); |
5069 | DEFSYM (Qko, "ko"); | |
5070 | ||
42707278 JD |
5071 | DEFSYM (QCuser_spec, "user-spec"); |
5072 | ||
c2f5bfd6 KH |
5073 | staticpro (&scratch_font_spec); |
5074 | scratch_font_spec = Ffont_spec (0, NULL); | |
5075 | staticpro (&scratch_font_prefer); | |
5076 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5077 | ||
d0818984 KH |
5078 | staticpro (&Vfont_log_deferred); |
5079 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5080 | ||
6a3dadd2 | 5081 | #if 0 |
733fd013 KH |
5082 | #ifdef HAVE_LIBOTF |
5083 | staticpro (&otf_list); | |
5084 | otf_list = Qnil; | |
6a3dadd2 KH |
5085 | #endif /* HAVE_LIBOTF */ |
5086 | #endif /* 0 */ | |
733fd013 | 5087 | |
c2f5bfd6 KH |
5088 | defsubr (&Sfontp); |
5089 | defsubr (&Sfont_spec); | |
5090 | defsubr (&Sfont_get); | |
51cf11be | 5091 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5092 | defsubr (&Sfont_face_attributes); |
51cf11be | 5093 | #endif |
c2f5bfd6 KH |
5094 | defsubr (&Sfont_put); |
5095 | defsubr (&Slist_fonts); | |
35027d0c | 5096 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5097 | defsubr (&Sfind_font); |
5098 | defsubr (&Sfont_xlfd_name); | |
5099 | defsubr (&Sclear_font_cache); | |
071132a9 | 5100 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5101 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5102 | #if 0 |
733fd013 | 5103 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5104 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5105 | #endif /* 0 */ |
c2f5bfd6 KH |
5106 | |
5107 | #ifdef FONT_DEBUG | |
5108 | defsubr (&Sopen_font); | |
5109 | defsubr (&Sclose_font); | |
5110 | defsubr (&Squery_font); | |
a7840ffb | 5111 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5112 | defsubr (&Sfont_match_p); |
10d16101 | 5113 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5114 | #if 0 |
5115 | defsubr (&Sdraw_string); | |
5116 | #endif | |
5117 | #endif /* FONT_DEBUG */ | |
a266686a | 5118 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5119 | defsubr (&Sfont_info); |
a266686a | 5120 | #endif |
c2f5bfd6 | 5121 | |
29208e82 | 5122 | DEFVAR_LISP ("font-encoding-alist", Vfont_encoding_alist, |
819e81df KH |
5123 | doc: /* |
5124 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5125 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5126 | where ENCODING is a charset or a char-table, | |
5127 | and REPERTORY is a charset, a char-table, or nil. | |
5128 | ||
027a33c0 | 5129 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5130 | \(REGEXP . ENCODING). |
5131 | ||
5132 | ENCODING is for converting a character to a glyph code of the font. | |
5133 | If ENCODING is a charset, encoding a character by the charset gives | |
5134 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5135 | the table by a character gives the corresponding glyph code. | |
5136 | ||
5137 | REPERTORY specifies a repertory of characters supported by the font. | |
91af3942 | 5138 | If REPERTORY is a charset, all characters belonging to the charset are |
819e81df | 5139 | supported. If REPERTORY is a char-table, all characters who have a |
027a33c0 | 5140 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5141 | gets the repertory information by an opened font and ENCODING. */); |
5142 | Vfont_encoding_alist = Qnil; | |
5143 | ||
933ac235 SM |
5144 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5145 | won't have any effect other than disconnect them from the style | |
5146 | table used by the font display code. So we make them read-only, | |
5147 | to avoid this confusing situation. */ | |
5148 | ||
29208e82 | 5149 | DEFVAR_LISP_NOPRO ("font-weight-table", Vfont_weight_table, |
d0ab1ebe KH |
5150 | doc: /* Vector of valid font weight values. |
5151 | Each element has the form: | |
5152 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5153 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5154 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5155 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe | 5156 | |
29208e82 | 5157 | DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table, |
d0ab1ebe | 5158 | doc: /* Vector of font slant symbols vs the corresponding numeric values. |
17ab8f5d | 5159 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5160 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5161 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe | 5162 | |
29208e82 | 5163 | DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table, |
d0ab1ebe | 5164 | doc: /* Alist of font width symbols vs the corresponding numeric values. |
17ab8f5d | 5165 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5166 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5167 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5168 | |
5169 | staticpro (&font_style_table); | |
25721f5b | 5170 | font_style_table = make_uninit_vector (3); |
d0ab1ebe KH |
5171 | ASET (font_style_table, 0, Vfont_weight_table); |
5172 | ASET (font_style_table, 1, Vfont_slant_table); | |
5173 | ASET (font_style_table, 2, Vfont_width_table); | |
5174 | ||
29208e82 | 5175 | DEFVAR_LISP ("font-log", Vfont_log, doc: /* |
d0ab1ebe KH |
5176 | *Logging list of font related actions and results. |
5177 | The value t means to suppress the logging. | |
5178 | The initial value is set to nil if the environment variable | |
5179 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5180 | Vfont_log = Qnil; | |
5181 | ||
819e81df | 5182 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5183 | #ifdef HAVE_FREETYPE |
35027d0c | 5184 | syms_of_ftfont (); |
c2f5bfd6 | 5185 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5186 | syms_of_xfont (); |
5187 | syms_of_ftxfont (); | |
c2f5bfd6 | 5188 | #ifdef HAVE_XFT |
35027d0c | 5189 | syms_of_xftfont (); |
c2f5bfd6 KH |
5190 | #endif /* HAVE_XFT */ |
5191 | #endif /* HAVE_X_WINDOWS */ | |
5192 | #else /* not HAVE_FREETYPE */ | |
5193 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5194 | syms_of_xfont (); |
c2f5bfd6 KH |
5195 | #endif /* HAVE_X_WINDOWS */ |
5196 | #endif /* not HAVE_FREETYPE */ | |
5197 | #ifdef HAVE_BDFFONT | |
35027d0c | 5198 | syms_of_bdffont (); |
c2f5bfd6 | 5199 | #endif /* HAVE_BDFFONT */ |
0fda9b75 | 5200 | #ifdef HAVE_NTGUI |
35027d0c | 5201 | syms_of_w32font (); |
0fda9b75 | 5202 | #endif /* HAVE_NTGUI */ |
819e81df | 5203 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5204 | } |
885b7d09 | 5205 | |
652b9560 | 5206 | void |
971de7fb | 5207 | init_font (void) |
652b9560 KH |
5208 | { |
5209 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5210 | } |