Commit | Line | Data |
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c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
e9bffc61 | 2 | |
ba318903 | 3 | Copyright (C) 2006-2014 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 | ||
5ae356d9 DA |
151 | #ifdef ENABLE_CHECKING |
152 | ||
153 | /* Used to catch bogus pointers in font objects. */ | |
154 | ||
155 | bool | |
156 | valid_font_driver (struct font_driver *drv) | |
157 | { | |
158 | Lisp_Object tail, frame; | |
159 | struct font_driver_list *fdl; | |
160 | ||
161 | for (fdl = font_driver_list; fdl; fdl = fdl->next) | |
162 | if (fdl->driver == drv) | |
163 | return true; | |
164 | FOR_EACH_FRAME (tail, frame) | |
165 | for (fdl = XFRAME (frame)->font_driver_list; fdl; fdl = fdl->next) | |
166 | if (fdl->driver == drv) | |
167 | return true; | |
168 | return false; | |
169 | } | |
170 | ||
171 | #endif /* ENABLE_CHECKING */ | |
35027d0c | 172 | |
fe3c5669 | 173 | /* Creators of font-related Lisp object. */ |
35027d0c | 174 | |
2f7c71a1 | 175 | static Lisp_Object |
971de7fb | 176 | font_make_spec (void) |
35027d0c KH |
177 | { |
178 | Lisp_Object font_spec; | |
179 | struct font_spec *spec | |
180 | = ((struct font_spec *) | |
181 | allocate_pseudovector (VECSIZE (struct font_spec), | |
182 | FONT_SPEC_MAX, PVEC_FONT)); | |
183 | XSETFONT (font_spec, spec); | |
184 | return font_spec; | |
185 | } | |
186 | ||
187 | Lisp_Object | |
971de7fb | 188 | font_make_entity (void) |
35027d0c KH |
189 | { |
190 | Lisp_Object font_entity; | |
191 | struct font_entity *entity | |
192 | = ((struct font_entity *) | |
193 | allocate_pseudovector (VECSIZE (struct font_entity), | |
194 | FONT_ENTITY_MAX, PVEC_FONT)); | |
195 | XSETFONT (font_entity, entity); | |
196 | return font_entity; | |
197 | } | |
198 | ||
51c13510 KH |
199 | /* Create a font-object whose structure size is SIZE. If ENTITY is |
200 | not nil, copy properties from ENTITY to the font-object. If | |
201 | PIXELSIZE is positive, set the `size' property to PIXELSIZE. */ | |
35027d0c | 202 | Lisp_Object |
971de7fb | 203 | font_make_object (int size, Lisp_Object entity, int pixelsize) |
35027d0c KH |
204 | { |
205 | Lisp_Object font_object; | |
206 | struct font *font | |
207 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
51c13510 KH |
208 | int i; |
209 | ||
35027d0c KH |
210 | XSETFONT (font_object, font); |
211 | ||
51c13510 KH |
212 | if (! NILP (entity)) |
213 | { | |
214 | for (i = 1; i < FONT_SPEC_MAX; i++) | |
215 | font->props[i] = AREF (entity, i); | |
216 | if (! NILP (AREF (entity, FONT_EXTRA_INDEX))) | |
217 | font->props[FONT_EXTRA_INDEX] | |
581e51e8 | 218 | = Fcopy_alist (AREF (entity, FONT_EXTRA_INDEX)); |
51c13510 KH |
219 | } |
220 | if (size > 0) | |
221 | font->props[FONT_SIZE_INDEX] = make_number (pixelsize); | |
35027d0c KH |
222 | return font_object; |
223 | } | |
224 | ||
225 | \f | |
226 | ||
a10c8269 DA |
227 | static int font_pixel_size (struct frame *f, Lisp_Object); |
228 | static Lisp_Object font_open_entity (struct frame *, Lisp_Object, int); | |
229 | static Lisp_Object font_matching_entity (struct frame *, Lisp_Object *, | |
f57e2426 | 230 | Lisp_Object); |
2f7c71a1 | 231 | static unsigned font_encode_char (Lisp_Object, int); |
c2f5bfd6 KH |
232 | |
233 | /* Number of registered font drivers. */ | |
234 | static int num_font_drivers; | |
235 | ||
35027d0c KH |
236 | |
237 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
a864ef14 PE |
238 | If STR is "*", return nil. If FORCE_SYMBOL, or if STR does not |
239 | consist entirely of one or more digits, return a symbol interned | |
240 | from STR. Otherwise, return an integer. */ | |
35027d0c KH |
241 | |
242 | Lisp_Object | |
a864ef14 | 243 | font_intern_prop (const char *str, ptrdiff_t len, bool force_symbol) |
35027d0c | 244 | { |
ccd6111c | 245 | ptrdiff_t i; |
d0ab1ebe | 246 | Lisp_Object tem; |
35027d0c | 247 | Lisp_Object obarray; |
d311d28c | 248 | ptrdiff_t nbytes, nchars; |
35027d0c KH |
249 | |
250 | if (len == 1 && *str == '*') | |
251 | return Qnil; | |
7216e43b | 252 | if (!force_symbol && 0 < len && '0' <= *str && *str <= '9') |
35027d0c KH |
253 | { |
254 | for (i = 1; i < len; i++) | |
da3f12b2 | 255 | if (! ('0' <= str[i] && str[i] <= '9')) |
35027d0c KH |
256 | break; |
257 | if (i == len) | |
ccd6111c | 258 | { |
da3f12b2 PE |
259 | EMACS_INT n; |
260 | ||
261 | i = 0; | |
262 | for (n = 0; (n += str[i++] - '0') <= MOST_POSITIVE_FIXNUM; n *= 10) | |
263 | { | |
264 | if (i == len) | |
265 | return make_number (n); | |
7216e43b | 266 | if (MOST_POSITIVE_FIXNUM / 10 < n) |
da3f12b2 PE |
267 | break; |
268 | } | |
269 | ||
270 | xsignal1 (Qoverflow_error, make_string (str, len)); | |
ccd6111c | 271 | } |
35027d0c KH |
272 | } |
273 | ||
e8df9267 DA |
274 | /* This code is similar to intern function from lread.c. */ |
275 | obarray = check_obarray (Vobarray); | |
72d36834 | 276 | parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes); |
e8df9267 DA |
277 | tem = oblookup (obarray, str, |
278 | (len == nchars || len != nbytes) ? len : nchars, len); | |
279 | ||
35027d0c KH |
280 | if (SYMBOLP (tem)) |
281 | return tem; | |
545312c2 KH |
282 | if (len == nchars || len != nbytes) |
283 | tem = make_unibyte_string (str, len); | |
284 | else | |
285 | tem = make_multibyte_string (str, nchars, len); | |
286 | return Fintern (tem, obarray); | |
35027d0c KH |
287 | } |
288 | ||
9331887d | 289 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 290 | |
9331887d | 291 | static int |
a10c8269 | 292 | font_pixel_size (struct frame *f, Lisp_Object spec) |
9331887d | 293 | { |
819e81df | 294 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
295 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
296 | double point_size; | |
35027d0c | 297 | int dpi, pixel_size; |
d0ab1ebe | 298 | Lisp_Object val; |
51c01100 | 299 | |
9331887d KH |
300 | if (INTEGERP (size)) |
301 | return XINT (size); | |
302 | if (NILP (size)) | |
819e81df | 303 | return 0; |
4e6a86c6 | 304 | eassert (FLOATP (size)); |
9331887d | 305 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
306 | val = AREF (spec, FONT_DPI_INDEX); |
307 | if (INTEGERP (val)) | |
17e28f6d | 308 | dpi = XINT (val); |
9331887d | 309 | else |
42143acd | 310 | dpi = FRAME_RES_Y (f); |
9331887d KH |
311 | pixel_size = POINT_TO_PIXEL (point_size, dpi); |
312 | return pixel_size; | |
819e81df KH |
313 | #else |
314 | return 1; | |
315 | #endif | |
9331887d KH |
316 | } |
317 | ||
c2f5bfd6 | 318 | |
35027d0c KH |
319 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
320 | font vector. If VAL is not valid (i.e. not registered in | |
321 | font_style_table), return -1 if NOERROR is zero, and return a | |
322 | proper index if NOERROR is nonzero. In that case, register VAL in | |
56dd2d86 | 323 | font_style_table if VAL is a symbol, and return the closest index if |
35027d0c | 324 | VAL is an integer. */ |
c2f5bfd6 | 325 | |
35027d0c | 326 | int |
a864ef14 PE |
327 | font_style_to_value (enum font_property_index prop, Lisp_Object val, |
328 | bool noerror) | |
c2f5bfd6 | 329 | { |
35027d0c | 330 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
c5e4379c AS |
331 | int len; |
332 | ||
333 | CHECK_VECTOR (table); | |
334 | len = ASIZE (table); | |
c2f5bfd6 | 335 | |
35027d0c | 336 | if (SYMBOLP (val)) |
c2f5bfd6 | 337 | { |
13a547c6 | 338 | int i, j; |
25a48bd0 | 339 | char *s; |
35027d0c KH |
340 | Lisp_Object args[2], elt; |
341 | ||
342 | /* At first try exact match. */ | |
343 | for (i = 0; i < len; i++) | |
c5e4379c AS |
344 | { |
345 | CHECK_VECTOR (AREF (table, i)); | |
346 | for (j = 1; j < ASIZE (AREF (table, i)); j++) | |
347 | if (EQ (val, AREF (AREF (table, i), j))) | |
348 | { | |
349 | CHECK_NUMBER (AREF (AREF (table, i), 0)); | |
350 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
351 | | (i << 4) | (j - 1)); | |
352 | } | |
353 | } | |
35027d0c | 354 | /* Try also with case-folding match. */ |
25a48bd0 | 355 | s = SSDATA (SYMBOL_NAME (val)); |
35027d0c | 356 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
357 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
358 | { | |
359 | elt = AREF (AREF (table, i), j); | |
25a48bd0 | 360 | if (xstrcasecmp (s, SSDATA (SYMBOL_NAME (elt))) == 0) |
c5e4379c AS |
361 | { |
362 | CHECK_NUMBER (AREF (AREF (table, i), 0)); | |
363 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
364 | | (i << 4) | (j - 1)); | |
365 | } | |
d0ab1ebe | 366 | } |
35027d0c KH |
367 | if (! noerror) |
368 | return -1; | |
4e6a86c6 | 369 | eassert (len < 255); |
c2694a06 | 370 | elt = Fmake_vector (make_number (2), make_number (100)); |
d0ab1ebe | 371 | ASET (elt, 1, val); |
35027d0c | 372 | args[0] = table; |
d0ab1ebe | 373 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 374 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
c2694a06 | 375 | return (100 << 8) | (i << 4); |
c2f5bfd6 | 376 | } |
35027d0c KH |
377 | else |
378 | { | |
d0ab1ebe | 379 | int i, last_n; |
d311d28c | 380 | EMACS_INT numeric = XINT (val); |
c2f5bfd6 | 381 | |
d0ab1ebe | 382 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 383 | { |
c5e4379c | 384 | int n; |
c2f5bfd6 | 385 | |
c5e4379c AS |
386 | CHECK_VECTOR (AREF (table, i)); |
387 | CHECK_NUMBER (AREF (AREF (table, i), 0)); | |
388 | n = XINT (AREF (AREF (table, i), 0)); | |
35027d0c | 389 | if (numeric == n) |
d0ab1ebe | 390 | return (n << 8) | (i << 4); |
35027d0c KH |
391 | if (numeric < n) |
392 | { | |
393 | if (! noerror) | |
394 | return -1; | |
d0ab1ebe KH |
395 | return ((i == 0 || n - numeric < numeric - last_n) |
396 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 397 | } |
35027d0c | 398 | last_n = n; |
35027d0c KH |
399 | } |
400 | if (! noerror) | |
401 | return -1; | |
d0ab1ebe | 402 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
403 | } |
404 | } | |
c2f5bfd6 KH |
405 | |
406 | Lisp_Object | |
a864ef14 PE |
407 | font_style_symbolic (Lisp_Object font, enum font_property_index prop, |
408 | bool for_face) | |
c2f5bfd6 | 409 | { |
3ef8c1b4 | 410 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
411 | Lisp_Object table, elt; |
412 | int i; | |
c2f5bfd6 | 413 | |
35027d0c KH |
414 | if (NILP (val)) |
415 | return Qnil; | |
416 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
c5e4379c | 417 | CHECK_VECTOR (table); |
d0ab1ebe | 418 | i = XINT (val) & 0xFF; |
4e6a86c6 | 419 | eassert (((i >> 4) & 0xF) < ASIZE (table)); |
d0ab1ebe | 420 | elt = AREF (table, ((i >> 4) & 0xF)); |
c5e4379c | 421 | CHECK_VECTOR (elt); |
4e6a86c6 | 422 | eassert ((i & 0xF) + 1 < ASIZE (elt)); |
c5e4379c AS |
423 | elt = (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
424 | CHECK_SYMBOL (elt); | |
425 | return elt; | |
6fe9826d JR |
426 | } |
427 | ||
819e81df KH |
428 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
429 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
430 | of the font. REPERTORY is a charset symbol or nil. */ | |
431 | ||
432 | Lisp_Object | |
971de7fb | 433 | find_font_encoding (Lisp_Object fontname) |
819e81df KH |
434 | { |
435 | Lisp_Object tail, elt; | |
436 | ||
437 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
438 | { | |
439 | elt = XCAR (tail); | |
440 | if (CONSP (elt) | |
441 | && STRINGP (XCAR (elt)) | |
442 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
443 | && (SYMBOLP (XCDR (elt)) | |
444 | ? CHARSETP (XCDR (elt)) | |
445 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
446 | return (XCDR (elt)); | |
447 | } | |
182ba28c | 448 | return Qnil; |
819e81df KH |
449 | } |
450 | ||
1701724c KH |
451 | /* Return encoding charset and repertory charset for REGISTRY in |
452 | ENCODING and REPERTORY correspondingly. If correct information for | |
453 | REGISTRY is available, return 0. Otherwise return -1. */ | |
454 | ||
455 | int | |
971de7fb | 456 | font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory) |
1701724c KH |
457 | { |
458 | Lisp_Object val; | |
459 | int encoding_id, repertory_id; | |
460 | ||
35027d0c | 461 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
462 | if (! NILP (val)) |
463 | { | |
464 | val = XCDR (val); | |
465 | if (NILP (val)) | |
466 | return -1; | |
467 | encoding_id = XINT (XCAR (val)); | |
468 | repertory_id = XINT (XCDR (val)); | |
469 | } | |
470 | else | |
471 | { | |
472 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
473 | if (SYMBOLP (val) && CHARSETP (val)) | |
474 | { | |
475 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
476 | } | |
477 | else if (CONSP (val)) | |
478 | { | |
479 | if (! CHARSETP (XCAR (val))) | |
480 | goto invalid_entry; | |
481 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
482 | if (NILP (XCDR (val))) | |
483 | repertory_id = -1; | |
484 | else | |
485 | { | |
486 | if (! CHARSETP (XCDR (val))) | |
487 | goto invalid_entry; | |
488 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
489 | } | |
51c01100 | 490 | } |
1701724c KH |
491 | else |
492 | goto invalid_entry; | |
493 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
494 | font_charset_alist | |
6c6f1994 | 495 | = nconc2 (font_charset_alist, list1 (Fcons (registry, val))); |
1701724c KH |
496 | } |
497 | ||
498 | if (encoding) | |
499 | *encoding = CHARSET_FROM_ID (encoding_id); | |
500 | if (repertory) | |
501 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
502 | return 0; | |
503 | ||
504 | invalid_entry: | |
505 | font_charset_alist | |
6c6f1994 | 506 | = nconc2 (font_charset_alist, list1 (Fcons (registry, Qnil))); |
1701724c KH |
507 | return -1; |
508 | } | |
509 | ||
c2f5bfd6 | 510 | \f |
56dd2d86 | 511 | /* Font property value validators. See the comment of |
45eb10fb KH |
512 | font_property_table for the meaning of the arguments. */ |
513 | ||
f57e2426 J |
514 | static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object); |
515 | static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object); | |
516 | static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object); | |
517 | static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object); | |
518 | static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object); | |
519 | static int get_font_prop_index (Lisp_Object); | |
c2f5bfd6 KH |
520 | |
521 | static Lisp_Object | |
971de7fb | 522 | font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
523 | { |
524 | if (STRINGP (val)) | |
35027d0c KH |
525 | val = Fintern (val, Qnil); |
526 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 527 | val = Qerror; |
35027d0c KH |
528 | else if (EQ (prop, QCregistry)) |
529 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
530 | return val; |
531 | } | |
532 | ||
35027d0c | 533 | |
c2f5bfd6 | 534 | static Lisp_Object |
971de7fb | 535 | font_prop_validate_style (Lisp_Object style, Lisp_Object val) |
c2f5bfd6 | 536 | { |
35027d0c KH |
537 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
538 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
539 | : FONT_WIDTH_INDEX); | |
35027d0c | 540 | if (INTEGERP (val)) |
c2f5bfd6 | 541 | { |
d311d28c | 542 | EMACS_INT n = XINT (val); |
c5e4379c | 543 | CHECK_VECTOR (AREF (font_style_table, prop - FONT_WEIGHT_INDEX)); |
64b900e3 | 544 | if (((n >> 4) & 0xF) |
35027d0c | 545 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
546 | val = Qerror; |
547 | else | |
548 | { | |
64b900e3 KH |
549 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
550 | ||
c5e4379c | 551 | CHECK_VECTOR (elt); |
64b900e3 KH |
552 | if ((n & 0xF) + 1 >= ASIZE (elt)) |
553 | val = Qerror; | |
c5e4379c AS |
554 | else |
555 | { | |
556 | CHECK_NUMBER (AREF (elt, 0)); | |
557 | if (XINT (AREF (elt, 0)) != (n >> 8)) | |
558 | val = Qerror; | |
559 | } | |
c2f5bfd6 KH |
560 | } |
561 | } | |
35027d0c KH |
562 | else if (SYMBOLP (val)) |
563 | { | |
564 | int n = font_style_to_value (prop, val, 0); | |
565 | ||
566 | val = n >= 0 ? make_number (n) : Qerror; | |
567 | } | |
568 | else | |
569 | val = Qerror; | |
c2f5bfd6 KH |
570 | return val; |
571 | } | |
572 | ||
573 | static Lisp_Object | |
971de7fb | 574 | font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
575 | { |
576 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
577 | ? val : Qerror); | |
578 | } | |
579 | ||
580 | static Lisp_Object | |
971de7fb | 581 | font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val) |
ec6fe57c KH |
582 | { |
583 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
584 | return val; | |
3692570f KH |
585 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
586 | { | |
587 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
588 | ||
589 | if (spacing == 'c' || spacing == 'C') | |
590 | return make_number (FONT_SPACING_CHARCELL); | |
591 | if (spacing == 'm' || spacing == 'M') | |
592 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 593 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
594 | return make_number (FONT_SPACING_PROPORTIONAL); |
595 | if (spacing == 'd' || spacing == 'D') | |
596 | return make_number (FONT_SPACING_DUAL); | |
597 | } | |
ec6fe57c KH |
598 | return Qerror; |
599 | } | |
600 | ||
1701724c | 601 | static Lisp_Object |
971de7fb | 602 | font_prop_validate_otf (Lisp_Object prop, Lisp_Object val) |
1701724c KH |
603 | { |
604 | Lisp_Object tail, tmp; | |
605 | int i; | |
606 | ||
607 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
608 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
609 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
610 | if (! CONSP (val)) | |
611 | return Qerror; | |
612 | if (! SYMBOLP (XCAR (val))) | |
613 | return Qerror; | |
614 | tail = XCDR (val); | |
615 | if (NILP (tail)) | |
616 | return val; | |
617 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
618 | return Qerror; | |
619 | for (i = 0; i < 2; i++) | |
620 | { | |
621 | tail = XCDR (tail); | |
622 | if (NILP (tail)) | |
623 | return val; | |
624 | if (! CONSP (tail)) | |
625 | return Qerror; | |
626 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
627 | if (! SYMBOLP (XCAR (tmp))) | |
628 | return Qerror; | |
629 | if (! NILP (tmp)) | |
630 | return Qerror; | |
631 | } | |
632 | return val; | |
633 | } | |
634 | ||
56dd2d86 | 635 | /* Structure of known font property keys and validator of the |
ec6fe57c | 636 | values. */ |
04bab72c | 637 | static const struct |
c2f5bfd6 | 638 | { |
ec6fe57c | 639 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 640 | Lisp_Object *key; |
45eb10fb KH |
641 | /* Function to validate PROP's value VAL, or NULL if any value is |
642 | ok. The value is VAL or its regularized value if VAL is valid, | |
643 | and Qerror if not. */ | |
c80e3b4a | 644 | Lisp_Object (*validator) (Lisp_Object prop, Lisp_Object val); |
ec6fe57c KH |
645 | } font_property_table[] = |
646 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
647 | { &QCfoundry, font_prop_validate_symbol }, |
648 | { &QCfamily, font_prop_validate_symbol }, | |
649 | { &QCadstyle, font_prop_validate_symbol }, | |
650 | { &QCregistry, font_prop_validate_symbol }, | |
651 | { &QCweight, font_prop_validate_style }, | |
652 | { &QCslant, font_prop_validate_style }, | |
653 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 654 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
655 | { &QCdpi, font_prop_validate_non_neg }, |
656 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
657 | { &QCavgwidth, font_prop_validate_non_neg }, |
658 | /* The order of the above entries must match with enum | |
659 | font_property_index. */ | |
660 | { &QClang, font_prop_validate_symbol }, | |
661 | { &QCscript, font_prop_validate_symbol }, | |
662 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
663 | }; |
664 | ||
45eb10fb | 665 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
666 | #define FONT_PROPERTY_TABLE_SIZE \ |
667 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
668 | ||
45eb10fb | 669 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 670 | already known property. */ |
45eb10fb | 671 | |
ec6fe57c | 672 | static int |
971de7fb | 673 | get_font_prop_index (Lisp_Object key) |
c2f5bfd6 | 674 | { |
35027d0c KH |
675 | int i; |
676 | ||
677 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
678 | if (EQ (key, *font_property_table[i].key)) | |
679 | return i; | |
ec6fe57c | 680 | return -1; |
c2f5bfd6 KH |
681 | } |
682 | ||
35027d0c KH |
683 | /* Validate the font property. The property key is specified by the |
684 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
685 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 686 | |
c2f5bfd6 | 687 | static Lisp_Object |
971de7fb | 688 | font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 689 | { |
35027d0c | 690 | Lisp_Object validated; |
c2f5bfd6 | 691 | |
1f09f444 KH |
692 | if (NILP (val)) |
693 | return val; | |
35027d0c KH |
694 | if (NILP (prop)) |
695 | prop = *font_property_table[idx].key; | |
696 | else | |
ec6fe57c | 697 | { |
35027d0c KH |
698 | idx = get_font_prop_index (prop); |
699 | if (idx < 0) | |
700 | return val; | |
ec6fe57c | 701 | } |
c80e3b4a | 702 | validated = (font_property_table[idx].validator) (prop, val); |
35027d0c KH |
703 | if (EQ (validated, Qerror)) |
704 | signal_error ("invalid font property", Fcons (prop, val)); | |
705 | return validated; | |
c2f5bfd6 | 706 | } |
51c01100 | 707 | |
35027d0c KH |
708 | |
709 | /* Store VAL as a value of extra font property PROP in FONT while | |
710 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 711 | |
01dbeb0b | 712 | Lisp_Object |
971de7fb | 713 | font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
9331887d KH |
714 | { |
715 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 716 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
717 | |
718 | if (NILP (slot)) | |
719 | { | |
35027d0c KH |
720 | Lisp_Object prev = Qnil; |
721 | ||
722 | while (CONSP (extra) | |
723 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
724 | prev = extra, extra = XCDR (extra); | |
581e51e8 | 725 | |
ce75f06e | 726 | if (NILP (prev)) |
581e51e8 | 727 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 728 | else |
581e51e8 | 729 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 730 | |
ec6fe57c | 731 | return val; |
9331887d | 732 | } |
9331887d | 733 | XSETCDR (slot, val); |
483670b5 KH |
734 | if (NILP (val)) |
735 | ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra)); | |
ec6fe57c | 736 | return val; |
9331887d KH |
737 | } |
738 | ||
c2f5bfd6 | 739 | \f |
266fee4f | 740 | /* Font name parser and unparser. */ |
c2f5bfd6 | 741 | |
8ea90aa3 | 742 | static int parse_matrix (const char *); |
f57e2426 | 743 | static int font_expand_wildcards (Lisp_Object *, int); |
984e7f30 | 744 | static int font_parse_name (char *, ptrdiff_t, Lisp_Object); |
c2f5bfd6 | 745 | |
ec6fe57c | 746 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
747 | enum xlfd_field_index |
748 | { | |
749 | XLFD_FOUNDRY_INDEX, | |
750 | XLFD_FAMILY_INDEX, | |
751 | XLFD_WEIGHT_INDEX, | |
752 | XLFD_SLANT_INDEX, | |
753 | XLFD_SWIDTH_INDEX, | |
754 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
755 | XLFD_PIXEL_INDEX, |
756 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
757 | XLFD_RESX_INDEX, |
758 | XLFD_RESY_INDEX, | |
759 | XLFD_SPACING_INDEX, | |
760 | XLFD_AVGWIDTH_INDEX, | |
761 | XLFD_REGISTRY_INDEX, | |
762 | XLFD_ENCODING_INDEX, | |
763 | XLFD_LAST_INDEX | |
764 | }; | |
765 | ||
ec6fe57c | 766 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
767 | enum xlfd_field_mask |
768 | { | |
769 | XLFD_FOUNDRY_MASK = 0x0001, | |
770 | XLFD_FAMILY_MASK = 0x0002, | |
771 | XLFD_WEIGHT_MASK = 0x0004, | |
772 | XLFD_SLANT_MASK = 0x0008, | |
773 | XLFD_SWIDTH_MASK = 0x0010, | |
774 | XLFD_ADSTYLE_MASK = 0x0020, | |
775 | XLFD_PIXEL_MASK = 0x0040, | |
776 | XLFD_POINT_MASK = 0x0080, | |
777 | XLFD_RESX_MASK = 0x0100, | |
778 | XLFD_RESY_MASK = 0x0200, | |
779 | XLFD_SPACING_MASK = 0x0400, | |
780 | XLFD_AVGWIDTH_MASK = 0x0800, | |
781 | XLFD_REGISTRY_MASK = 0x1000, | |
782 | XLFD_ENCODING_MASK = 0x2000 | |
783 | }; | |
784 | ||
785 | ||
56dd2d86 | 786 | /* Parse P pointing to the pixel/point size field of the form |
c2f5bfd6 KH |
787 | `[A B C D]' which specifies a transformation matrix: |
788 | ||
789 | A B 0 | |
790 | C D 0 | |
791 | 0 0 1 | |
792 | ||
793 | by which all glyphs of the font are transformed. The spec says | |
794 | that scalar value N for the pixel/point size is equivalent to: | |
795 | A = N * resx/resy, B = C = 0, D = N. | |
796 | ||
797 | Return the scalar value N if the form is valid. Otherwise return | |
798 | -1. */ | |
799 | ||
800 | static int | |
8ea90aa3 | 801 | parse_matrix (const char *p) |
c2f5bfd6 KH |
802 | { |
803 | double matrix[4]; | |
804 | char *end; | |
805 | int i; | |
806 | ||
807 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
808 | { | |
809 | if (*p == '~') | |
810 | matrix[i] = - strtod (p + 1, &end); | |
811 | else | |
812 | matrix[i] = strtod (p, &end); | |
813 | p = end; | |
814 | } | |
815 | return (i == 4 ? (int) matrix[3] : -1); | |
816 | } | |
817 | ||
4485a28e | 818 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
56dd2d86 | 819 | multiple fields to fill in all 14 XLFD fields while restricting a |
4485a28e KH |
820 | field position by its contents. */ |
821 | ||
ec6fe57c | 822 | static int |
971de7fb | 823 | font_expand_wildcards (Lisp_Object *field, int n) |
4485a28e KH |
824 | { |
825 | /* Copy of FIELD. */ | |
826 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
827 | /* Array of information about where this element can go. Nth | |
828 | element is for Nth element of FIELD. */ | |
829 | struct { | |
830 | /* Minimum possible field. */ | |
831 | int from; | |
09e80d9f | 832 | /* Maximum possible field. */ |
4485a28e KH |
833 | int to; |
834 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
835 | int mask; | |
836 | } range[XLFD_LAST_INDEX]; | |
837 | int i, j; | |
ec6fe57c | 838 | int range_from, range_to; |
4485a28e KH |
839 | unsigned range_mask; |
840 | ||
841 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
842 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
843 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 844 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 845 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
846 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
847 | ||
848 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
849 | field. The value is shifted to left one bit by one in the | |
850 | following loop. */ | |
851 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
852 | range_mask = (range_mask << 1) | 1; | |
853 | ||
ec6fe57c | 854 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
c80e3b4a | 855 | position-based restriction for FIELD[I]. */ |
ec6fe57c KH |
856 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; |
857 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 858 | { |
4485a28e KH |
859 | Lisp_Object val = field[i]; |
860 | ||
861 | tmp[i] = val; | |
862 | if (NILP (val)) | |
863 | { | |
864 | /* Wildcard. */ | |
865 | range[i].from = range_from; | |
866 | range[i].to = range_to; | |
867 | range[i].mask = range_mask; | |
868 | } | |
869 | else | |
870 | { | |
871 | /* The triplet FROM, TO, and MASK is a value-based | |
c80e3b4a | 872 | restriction for FIELD[I]. */ |
4485a28e KH |
873 | int from, to; |
874 | unsigned mask; | |
875 | ||
876 | if (INTEGERP (val)) | |
877 | { | |
d311d28c | 878 | EMACS_INT numeric = XINT (val); |
4485a28e | 879 | |
ef18374f KH |
880 | if (i + 1 == n) |
881 | from = to = XLFD_ENCODING_INDEX, | |
882 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
883 | else if (numeric == 0) |
884 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
885 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
886 | else if (numeric <= 48) |
887 | from = to = XLFD_PIXEL_INDEX, | |
888 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 889 | else |
ec6fe57c | 890 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
891 | mask = XLFD_LARGENUM_MASK; |
892 | } | |
35027d0c | 893 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
894 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
895 | mask = XLFD_NULL_MASK; | |
896 | else if (i == 0) | |
897 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
898 | else if (i + 1 == n) | |
899 | { | |
900 | Lisp_Object name = SYMBOL_NAME (val); | |
901 | ||
902 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
903 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
904 | mask = XLFD_REGENC_MASK; | |
905 | else | |
906 | from = to = XLFD_ENCODING_INDEX, | |
907 | mask = XLFD_ENCODING_MASK; | |
908 | } | |
ef18374f KH |
909 | else if (range_from <= XLFD_WEIGHT_INDEX |
910 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 911 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 912 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
913 | else if (range_from <= XLFD_SLANT_INDEX |
914 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 915 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 916 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
917 | else if (range_from <= XLFD_SWIDTH_INDEX |
918 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 919 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
920 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
921 | else | |
922 | { | |
ec6fe57c | 923 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
924 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
925 | else | |
926 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
927 | mask = XLFD_SYMBOL_MASK; | |
928 | } | |
929 | ||
930 | /* Merge position-based and value-based restrictions. */ | |
931 | mask &= range_mask; | |
932 | while (from < range_from) | |
933 | mask &= ~(1 << from++); | |
934 | while (from < 14 && ! (mask & (1 << from))) | |
935 | from++; | |
936 | while (to > range_to) | |
937 | mask &= ~(1 << to--); | |
938 | while (to >= 0 && ! (mask & (1 << to))) | |
939 | to--; | |
940 | if (from > to) | |
941 | return -1; | |
942 | range[i].from = from; | |
943 | range[i].to = to; | |
944 | range[i].mask = mask; | |
945 | ||
946 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
947 | { |
948 | /* The range is narrowed by value-based restrictions. | |
949 | Reflect it to the other fields. */ | |
950 | ||
951 | /* Following fields should be after FROM. */ | |
952 | range_from = from; | |
953 | /* Preceding fields should be before TO. */ | |
954 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
955 | { | |
956 | /* Check FROM for non-wildcard field. */ | |
957 | if (! NILP (tmp[j]) && range[j].from < from) | |
958 | { | |
959 | while (range[j].from < from) | |
960 | range[j].mask &= ~(1 << range[j].from++); | |
961 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
962 | from++; | |
963 | range[j].from = from; | |
964 | } | |
965 | else | |
966 | from = range[j].from; | |
967 | if (range[j].to > to) | |
968 | { | |
969 | while (range[j].to > to) | |
970 | range[j].mask &= ~(1 << range[j].to--); | |
971 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
972 | to--; | |
973 | range[j].to = to; | |
974 | } | |
975 | else | |
976 | to = range[j].to; | |
977 | if (from > to) | |
978 | return -1; | |
979 | } | |
980 | } | |
4485a28e KH |
981 | } |
982 | } | |
983 | ||
c5e87d10 | 984 | /* Decide all fields from restrictions in RANGE. */ |
4485a28e KH |
985 | for (i = j = 0; i < n ; i++) |
986 | { | |
987 | if (j < range[i].from) | |
988 | { | |
989 | if (i == 0 || ! NILP (tmp[i - 1])) | |
990 | /* None of TMP[X] corresponds to Jth field. */ | |
991 | return -1; | |
992 | for (; j < range[i].from; j++) | |
993 | field[j] = Qnil; | |
994 | } | |
995 | field[j++] = tmp[i]; | |
996 | } | |
997 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
998 | return -1; | |
999 | for (; j < XLFD_LAST_INDEX; j++) | |
1000 | field[j] = Qnil; | |
1001 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
1002 | field[XLFD_ENCODING_INDEX] | |
1003 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
1004 | return 0; | |
1005 | } | |
1006 | ||
43a1d19b | 1007 | |
ef18374f | 1008 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
1009 | (font-spec or font-entity). Size property of FONT is set as |
1010 | follows: | |
1011 | specified XLFD fields FONT property | |
1012 | --------------------- ------------- | |
1013 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
1014 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
1015 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
1016 | ||
ec6fe57c | 1017 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 1018 | |
ec6fe57c KH |
1019 | FONT is usually a font-spec, but when this function is called from |
1020 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 1021 | a fully specified XLFD. */ |
c2f5bfd6 KH |
1022 | |
1023 | int | |
984e7f30 | 1024 | font_parse_xlfd (char *name, ptrdiff_t len, Lisp_Object font) |
c2f5bfd6 | 1025 | { |
35027d0c | 1026 | int i, j, n; |
cf23b845 | 1027 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 1028 | Lisp_Object val; |
4485a28e | 1029 | char *p; |
c2f5bfd6 | 1030 | |
e3928081 | 1031 | if (len > 255 || !len) |
c2f5bfd6 KH |
1032 | /* Maximum XLFD name length is 255. */ |
1033 | return -1; | |
ec6fe57c | 1034 | /* Accept "*-.." as a fully specified XLFD. */ |
e3928081 | 1035 | if (name[0] == '*' && (len == 1 || name[1] == '-')) |
ec6fe57c KH |
1036 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; |
1037 | else | |
1038 | i = 0; | |
1039 | for (p = name + i; *p; p++) | |
35027d0c KH |
1040 | if (*p == '-') |
1041 | { | |
1042 | f[i++] = p + 1; | |
1043 | if (i == XLFD_LAST_INDEX) | |
1044 | break; | |
1045 | } | |
1046 | f[i] = name + len; | |
c2f5bfd6 | 1047 | |
2f286d4f KH |
1048 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1049 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1050 | |
ec6fe57c | 1051 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1052 | { |
35027d0c | 1053 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1054 | int pixel_size; |
1055 | ||
2f286d4f KH |
1056 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1057 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1058 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1059 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1060 | { |
2f286d4f | 1061 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1062 | if (! NILP (val)) |
4485a28e | 1063 | { |
2f286d4f | 1064 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1065 | return -1; |
1066 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1067 | } |
1068 | } | |
2f286d4f | 1069 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1070 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1071 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1072 | else | |
1073 | ASET (font, FONT_REGISTRY_INDEX, | |
1074 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1075 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1076 | 1)); | |
ec6fe57c KH |
1077 | p = f[XLFD_PIXEL_INDEX]; |
1078 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1079 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1080 | else |
1081 | { | |
35027d0c KH |
1082 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1083 | if (INTEGERP (val)) | |
ec6fe57c | 1084 | ASET (font, FONT_SIZE_INDEX, val); |
b57d9029 KH |
1085 | else if (FONT_ENTITY_P (font)) |
1086 | return -1; | |
ec6fe57c KH |
1087 | else |
1088 | { | |
1089 | double point_size = -1; | |
1090 | ||
4e6a86c6 | 1091 | eassert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1092 | p = f[XLFD_POINT_INDEX]; |
1093 | if (*p == '[') | |
1094 | point_size = parse_matrix (p); | |
620f13b0 | 1095 | else if (c_isdigit (*p)) |
ec6fe57c KH |
1096 | point_size = atoi (p), point_size /= 10; |
1097 | if (point_size >= 0) | |
1098 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1099 | } |
1100 | } | |
ec6fe57c | 1101 | |
087048cd KH |
1102 | val = INTERN_FIELD (XLFD_RESY_INDEX); |
1103 | if (! NILP (val) && ! INTEGERP (val)) | |
1104 | return -1; | |
1105 | ASET (font, FONT_DPI_INDEX, val); | |
35027d0c KH |
1106 | val = INTERN_FIELD (XLFD_SPACING_INDEX); |
1107 | if (! NILP (val)) | |
ec6fe57c | 1108 | { |
35027d0c KH |
1109 | val = font_prop_validate_spacing (QCspacing, val); |
1110 | if (! INTEGERP (val)) | |
1111 | return -1; | |
1112 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1113 | } |
ec6fe57c KH |
1114 | p = f[XLFD_AVGWIDTH_INDEX]; |
1115 | if (*p == '~') | |
1116 | p++; | |
087048cd KH |
1117 | val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0); |
1118 | if (! NILP (val) && ! INTEGERP (val)) | |
1119 | return -1; | |
1120 | ASET (font, FONT_AVGWIDTH_INDEX, val); | |
4485a28e KH |
1121 | } |
1122 | else | |
c2f5bfd6 | 1123 | { |
a864ef14 | 1124 | bool wild_card_found = 0; |
ec6fe57c | 1125 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1126 | |
35027d0c KH |
1127 | if (FONT_ENTITY_P (font)) |
1128 | return -1; | |
ec6fe57c | 1129 | for (j = 0; j < i; j++) |
4485a28e | 1130 | { |
ec6fe57c | 1131 | if (*f[j] == '*') |
4485a28e | 1132 | { |
ec6fe57c KH |
1133 | if (f[j][1] && f[j][1] != '-') |
1134 | return -1; | |
1135 | prop[j] = Qnil; | |
1136 | wild_card_found = 1; | |
1137 | } | |
ec6fe57c | 1138 | else if (j + 1 < i) |
35027d0c | 1139 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1140 | else |
2f286d4f | 1141 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1142 | } |
1143 | if (! wild_card_found) | |
c2f5bfd6 | 1144 | return -1; |
ec6fe57c | 1145 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1146 | return -1; |
ec6fe57c | 1147 | |
35027d0c KH |
1148 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1149 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1150 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1151 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1152 | if (! NILP (prop[i])) |
35027d0c KH |
1153 | { |
1154 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1155 | return -1; | |
1156 | ASET (font, j, make_number (n)); | |
1157 | } | |
1158 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1159 | val = prop[XLFD_REGISTRY_INDEX]; |
1160 | if (NILP (val)) | |
c2f5bfd6 | 1161 | { |
ec6fe57c KH |
1162 | val = prop[XLFD_ENCODING_INDEX]; |
1163 | if (! NILP (val)) | |
35027d0c | 1164 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1165 | } |
ec6fe57c | 1166 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1167 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1168 | else |
35027d0c KH |
1169 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1170 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1171 | if (! NILP (val)) |
35027d0c | 1172 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1173 | |
1174 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1175 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1176 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1177 | { |
ec6fe57c | 1178 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1179 | |
ec6fe57c KH |
1180 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1181 | } | |
c2f5bfd6 | 1182 | |
35027d0c KH |
1183 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1184 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1185 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1186 | { | |
1187 | val = font_prop_validate_spacing (QCspacing, | |
1188 | prop[XLFD_SPACING_INDEX]); | |
1189 | if (! INTEGERP (val)) | |
1190 | return -1; | |
1191 | ASET (font, FONT_SPACING_INDEX, val); | |
1192 | } | |
ec6fe57c | 1193 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1194 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1195 | } |
1196 | ||
ec6fe57c | 1197 | return 0; |
c2f5bfd6 KH |
1198 | } |
1199 | ||
1200 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1201 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1202 | 0, use PIXEL_SIZE instead. */ | |
1203 | ||
d923b542 | 1204 | ptrdiff_t |
971de7fb | 1205 | font_unparse_xlfd (Lisp_Object font, int pixel_size, char *name, int nbytes) |
c2f5bfd6 | 1206 | { |
e663c700 | 1207 | char *p; |
00dc3ead | 1208 | const char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 | 1209 | Lisp_Object val; |
c21721cc | 1210 | int i, j, len; |
c2f5bfd6 | 1211 | |
4e6a86c6 | 1212 | eassert (FONTP (font)); |
c2f5bfd6 KH |
1213 | |
1214 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1215 | i++, j++) | |
1216 | { | |
1217 | if (i == FONT_ADSTYLE_INDEX) | |
1218 | j = XLFD_ADSTYLE_INDEX; | |
1219 | else if (i == FONT_REGISTRY_INDEX) | |
1220 | j = XLFD_REGISTRY_INDEX; | |
1221 | val = AREF (font, i); | |
1222 | if (NILP (val)) | |
1bb1d99b KH |
1223 | { |
1224 | if (j == XLFD_REGISTRY_INDEX) | |
c21721cc | 1225 | f[j] = "*-*"; |
1bb1d99b | 1226 | else |
c21721cc | 1227 | f[j] = "*"; |
1bb1d99b | 1228 | } |
c2f5bfd6 KH |
1229 | else |
1230 | { | |
1231 | if (SYMBOLP (val)) | |
1232 | val = SYMBOL_NAME (val); | |
1bb1d99b | 1233 | if (j == XLFD_REGISTRY_INDEX |
51b59d79 | 1234 | && ! strchr (SSDATA (val), '-')) |
1bb1d99b KH |
1235 | { |
1236 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
c21721cc PE |
1237 | ptrdiff_t alloc = SBYTES (val) + 4; |
1238 | if (nbytes <= alloc) | |
1239 | return -1; | |
1240 | f[j] = p = alloca (alloc); | |
1241 | sprintf (p, "%s%s-*", SDATA (val), | |
31ff141c | 1242 | &"*"[SDATA (val)[SBYTES (val) - 1] == '*']); |
1bb1d99b KH |
1243 | } |
1244 | else | |
c21721cc | 1245 | f[j] = SSDATA (val); |
c2f5bfd6 KH |
1246 | } |
1247 | } | |
1248 | ||
1249 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1250 | i++, j++) | |
1251 | { | |
35027d0c | 1252 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 | 1253 | if (NILP (val)) |
c21721cc | 1254 | f[j] = "*"; |
c2f5bfd6 KH |
1255 | else |
1256 | { | |
e1bf05c1 KH |
1257 | int c, k, l; |
1258 | ptrdiff_t alloc; | |
1259 | ||
35027d0c | 1260 | val = SYMBOL_NAME (val); |
e1bf05c1 KH |
1261 | alloc = SBYTES (val) + 1; |
1262 | if (nbytes <= alloc) | |
1263 | return -1; | |
00dc3ead | 1264 | f[j] = p = alloca (alloc); |
e1bf05c1 KH |
1265 | /* Copy the name while excluding '-', '?', ',', and '"'. */ |
1266 | for (k = l = 0; k < alloc; k++) | |
1267 | { | |
1268 | c = SREF (val, k); | |
1269 | if (c != '-' && c != '?' && c != ',' && c != '"') | |
00dc3ead | 1270 | p[l++] = c; |
e1bf05c1 | 1271 | } |
c2f5bfd6 KH |
1272 | } |
1273 | } | |
1274 | ||
1275 | val = AREF (font, FONT_SIZE_INDEX); | |
4e6a86c6 | 1276 | eassert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1277 | if (INTEGERP (val)) |
1278 | { | |
c21721cc PE |
1279 | EMACS_INT v = XINT (val); |
1280 | if (v <= 0) | |
1281 | v = pixel_size; | |
1282 | if (v > 0) | |
81aefea4 | 1283 | { |
c21721cc PE |
1284 | f[XLFD_PIXEL_INDEX] = p = |
1285 | alloca (sizeof "-*" + INT_STRLEN_BOUND (EMACS_INT)); | |
1286 | sprintf (p, "%"pI"d-*", v); | |
81aefea4 SM |
1287 | } |
1288 | else | |
c21721cc | 1289 | f[XLFD_PIXEL_INDEX] = "*-*"; |
c2f5bfd6 KH |
1290 | } |
1291 | else if (FLOATP (val)) | |
1292 | { | |
c21721cc PE |
1293 | double v = XFLOAT_DATA (val) * 10; |
1294 | f[XLFD_PIXEL_INDEX] = p = alloca (sizeof "*-" + 1 + DBL_MAX_10_EXP + 1); | |
1295 | sprintf (p, "*-%.0f", v); | |
c2f5bfd6 KH |
1296 | } |
1297 | else | |
c21721cc | 1298 | f[XLFD_PIXEL_INDEX] = "*-*"; |
ec6fe57c | 1299 | |
35027d0c | 1300 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1301 | { |
c21721cc PE |
1302 | EMACS_INT v = XINT (AREF (font, FONT_DPI_INDEX)); |
1303 | f[XLFD_RESX_INDEX] = p = | |
1304 | alloca (sizeof "-" + 2 * INT_STRLEN_BOUND (EMACS_INT)); | |
1305 | sprintf (p, "%"pI"d-%"pI"d", v, v); | |
c2f5bfd6 KH |
1306 | } |
1307 | else | |
c21721cc | 1308 | f[XLFD_RESX_INDEX] = "*-*"; |
35027d0c | 1309 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
ec6fe57c | 1310 | { |
c21721cc | 1311 | EMACS_INT spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1312 | |
35027d0c KH |
1313 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1314 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1315 | : spacing <= FONT_SPACING_MONO ? "m" | |
1316 | : "c"); | |
ec6fe57c | 1317 | } |
35027d0c | 1318 | else |
c21721cc | 1319 | f[XLFD_SPACING_INDEX] = "*"; |
35027d0c KH |
1320 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
1321 | { | |
c21721cc PE |
1322 | f[XLFD_AVGWIDTH_INDEX] = p = alloca (INT_BUFSIZE_BOUND (EMACS_INT)); |
1323 | sprintf (p, "%"pI"d", XINT (AREF (font, FONT_AVGWIDTH_INDEX))); | |
35027d0c KH |
1324 | } |
1325 | else | |
c21721cc | 1326 | f[XLFD_AVGWIDTH_INDEX] = "*"; |
8666506e PE |
1327 | len = snprintf (name, nbytes, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
1328 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], | |
1329 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
1330 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], | |
1331 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1332 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1333 | f[XLFD_REGISTRY_INDEX]); | |
1334 | return len < nbytes ? len : -1; | |
c2f5bfd6 KH |
1335 | } |
1336 | ||
8c102d5b CY |
1337 | /* Parse NAME (null terminated) and store information in FONT |
1338 | (font-spec or font-entity). NAME is supplied in either the | |
1339 | Fontconfig or GTK font name format. If NAME is successfully | |
1340 | parsed, return 0. Otherwise return -1. | |
1341 | ||
1342 | The fontconfig format is | |
1343 | ||
1344 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1345 | ||
1346 | The GTK format is | |
1347 | ||
1348 | FAMILY [PROPS...] [SIZE] | |
1349 | ||
1350 | This function tries to guess which format it is. */ | |
ef18374f | 1351 | |
2f7c71a1 | 1352 | static int |
984e7f30 | 1353 | font_parse_fcname (char *name, ptrdiff_t len, Lisp_Object font) |
ef18374f | 1354 | { |
8c102d5b CY |
1355 | char *p, *q; |
1356 | char *size_beg = NULL, *size_end = NULL; | |
1357 | char *props_beg = NULL, *family_end = NULL; | |
ef18374f | 1358 | |
ec6fe57c KH |
1359 | if (len == 0) |
1360 | return -1; | |
8c102d5b CY |
1361 | |
1362 | for (p = name; *p; p++) | |
ef18374f | 1363 | { |
8c102d5b CY |
1364 | if (*p == '\\' && p[1]) |
1365 | p++; | |
1366 | else if (*p == ':') | |
ef18374f | 1367 | { |
59facb78 | 1368 | props_beg = family_end = p; |
8c102d5b CY |
1369 | break; |
1370 | } | |
1371 | else if (*p == '-') | |
1372 | { | |
a864ef14 | 1373 | bool decimal = 0, size_found = 1; |
8c102d5b | 1374 | for (q = p + 1; *q && *q != ':'; q++) |
620f13b0 | 1375 | if (! c_isdigit (*q)) |
8c102d5b | 1376 | { |
b1868a1a CY |
1377 | if (*q != '.' || decimal) |
1378 | { | |
1379 | size_found = 0; | |
1380 | break; | |
1381 | } | |
1382 | decimal = 1; | |
8c102d5b CY |
1383 | } |
1384 | if (size_found) | |
1385 | { | |
1386 | family_end = p; | |
1387 | size_beg = p + 1; | |
1388 | size_end = q; | |
1389 | break; | |
1390 | } | |
ef18374f | 1391 | } |
ef18374f | 1392 | } |
9331887d | 1393 | |
8c102d5b CY |
1394 | if (family_end) |
1395 | { | |
637fa988 JD |
1396 | Lisp_Object extra_props = Qnil; |
1397 | ||
8c102d5b CY |
1398 | /* A fontconfig name with size and/or property data. */ |
1399 | if (family_end > name) | |
1400 | { | |
1401 | Lisp_Object family; | |
1402 | family = font_intern_prop (name, family_end - name, 1); | |
1403 | ASET (font, FONT_FAMILY_INDEX, family); | |
1404 | } | |
1405 | if (size_beg) | |
1406 | { | |
1407 | double point_size = strtod (size_beg, &size_end); | |
1408 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1409 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1410 | props_beg = size_end; |
8c102d5b CY |
1411 | } |
1412 | if (props_beg) | |
1413 | { | |
d26424c5 | 1414 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1415 | Lisp_Object val; |
8c102d5b | 1416 | |
59facb78 | 1417 | for (p = props_beg; *p; p = q) |
8c102d5b | 1418 | { |
8c102d5b | 1419 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1420 | if (*q != '=') |
1421 | { | |
1422 | /* Must be an enumerated value. */ | |
b5b8c9e5 | 1423 | ptrdiff_t word_len; |
59facb78 CY |
1424 | p = p + 1; |
1425 | word_len = q - p; | |
8c102d5b | 1426 | val = font_intern_prop (p, q - p, 1); |
9277a69d | 1427 | |
4ec88040 AS |
1428 | #define PROP_MATCH(STR) (word_len == strlen (STR) \ |
1429 | && memcmp (p, STR, strlen (STR)) == 0) | |
1430 | ||
1431 | if (PROP_MATCH ("light") | |
1432 | || PROP_MATCH ("medium") | |
1433 | || PROP_MATCH ("demibold") | |
1434 | || PROP_MATCH ("bold") | |
1435 | || PROP_MATCH ("black")) | |
8c102d5b | 1436 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); |
4ec88040 AS |
1437 | else if (PROP_MATCH ("roman") |
1438 | || PROP_MATCH ("italic") | |
1439 | || PROP_MATCH ("oblique")) | |
8c102d5b | 1440 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); |
4ec88040 | 1441 | else if (PROP_MATCH ("charcell")) |
8c102d5b CY |
1442 | ASET (font, FONT_SPACING_INDEX, |
1443 | make_number (FONT_SPACING_CHARCELL)); | |
4ec88040 | 1444 | else if (PROP_MATCH ("mono")) |
8c102d5b CY |
1445 | ASET (font, FONT_SPACING_INDEX, |
1446 | make_number (FONT_SPACING_MONO)); | |
4ec88040 | 1447 | else if (PROP_MATCH ("proportional")) |
8c102d5b CY |
1448 | ASET (font, FONT_SPACING_INDEX, |
1449 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1450 | #undef PROP_MATCH |
8c102d5b | 1451 | } |
59facb78 | 1452 | else |
8c102d5b | 1453 | { |
59facb78 | 1454 | /* KEY=VAL pairs */ |
8c102d5b | 1455 | Lisp_Object key; |
59facb78 | 1456 | int prop; |
51c01100 | 1457 | |
59facb78 | 1458 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1459 | prop = FONT_SIZE_INDEX; |
1460 | else | |
1461 | { | |
1462 | key = font_intern_prop (p, q - p, 1); | |
1463 | prop = get_font_prop_index (key); | |
1464 | } | |
77989187 | 1465 | |
8c102d5b CY |
1466 | p = q + 1; |
1467 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1468 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1469 | |
d26424c5 KH |
1470 | if (prop >= FONT_FOUNDRY_INDEX |
1471 | && prop < FONT_EXTRA_INDEX) | |
637fa988 | 1472 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); |
ce75f06e | 1473 | else |
637fa988 JD |
1474 | { |
1475 | extra_props = nconc2 (extra_props, | |
6c6f1994 | 1476 | list1 (Fcons (key, val))); |
637fa988 | 1477 | } |
8c102d5b | 1478 | } |
d26424c5 | 1479 | p = q; |
8c102d5b | 1480 | } |
8c102d5b | 1481 | } |
637fa988 JD |
1482 | |
1483 | if (! NILP (extra_props)) | |
1484 | { | |
1485 | struct font_driver_list *driver_list = font_driver_list; | |
1486 | for ( ; driver_list; driver_list = driver_list->next) | |
1487 | if (driver_list->driver->filter_properties) | |
1488 | (*driver_list->driver->filter_properties) (font, extra_props); | |
1489 | } | |
ce75f06e | 1490 | |
8c102d5b CY |
1491 | } |
1492 | else | |
ef18374f | 1493 | { |
8c102d5b CY |
1494 | /* Either a fontconfig-style name with no size and property |
1495 | data, or a GTK-style name. */ | |
6608a7d8 CY |
1496 | Lisp_Object weight = Qnil, slant = Qnil; |
1497 | Lisp_Object width = Qnil, size = Qnil; | |
1498 | char *word_start; | |
b5b8c9e5 | 1499 | ptrdiff_t word_len; |
6608a7d8 CY |
1500 | |
1501 | /* Scan backwards from the end, looking for a size. */ | |
1502 | for (p = name + len - 1; p >= name; p--) | |
620f13b0 | 1503 | if (!c_isdigit (*p)) |
6608a7d8 CY |
1504 | break; |
1505 | ||
1506 | if ((p < name + len - 1) && ((p + 1 == name) || *p == ' ')) | |
1507 | /* Found a font size. */ | |
1508 | size = make_float (strtod (p + 1, NULL)); | |
1509 | else | |
1510 | p = name + len; | |
ef18374f | 1511 | |
6608a7d8 CY |
1512 | /* Now P points to the termination of the string, sans size. |
1513 | Scan backwards, looking for font properties. */ | |
1514 | for (; p > name; p = q) | |
ef18374f | 1515 | { |
6608a7d8 | 1516 | for (q = p - 1; q >= name; q--) |
9331887d | 1517 | { |
6608a7d8 CY |
1518 | if (q > name && *(q-1) == '\\') |
1519 | --q; /* Skip quoting backslashes. */ | |
1520 | else if (*q == ' ') | |
1521 | break; | |
027a33c0 | 1522 | } |
8c102d5b | 1523 | |
6608a7d8 CY |
1524 | word_start = q + 1; |
1525 | word_len = p - word_start; | |
8c102d5b | 1526 | |
4ec88040 AS |
1527 | #define PROP_MATCH(STR) \ |
1528 | (word_len == strlen (STR) \ | |
1529 | && memcmp (word_start, STR, strlen (STR)) == 0) | |
1530 | #define PROP_SAVE(VAR, STR) \ | |
1531 | (VAR = NILP (VAR) ? font_intern_prop (STR, strlen (STR), 1) : VAR) | |
1532 | ||
1533 | if (PROP_MATCH ("Ultra-Light")) | |
1534 | PROP_SAVE (weight, "ultra-light"); | |
1535 | else if (PROP_MATCH ("Light")) | |
1536 | PROP_SAVE (weight, "light"); | |
1537 | else if (PROP_MATCH ("Book")) | |
1538 | PROP_SAVE (weight, "book"); | |
1539 | else if (PROP_MATCH ("Medium")) | |
1540 | PROP_SAVE (weight, "medium"); | |
1541 | else if (PROP_MATCH ("Semi-Bold")) | |
1542 | PROP_SAVE (weight, "semi-bold"); | |
1543 | else if (PROP_MATCH ("Bold")) | |
1544 | PROP_SAVE (weight, "bold"); | |
1545 | else if (PROP_MATCH ("Italic")) | |
1546 | PROP_SAVE (slant, "italic"); | |
1547 | else if (PROP_MATCH ("Oblique")) | |
1548 | PROP_SAVE (slant, "oblique"); | |
1549 | else if (PROP_MATCH ("Semi-Condensed")) | |
1550 | PROP_SAVE (width, "semi-condensed"); | |
1551 | else if (PROP_MATCH ("Condensed")) | |
1552 | PROP_SAVE (width, "condensed"); | |
6608a7d8 CY |
1553 | /* An unknown word must be part of the font name. */ |
1554 | else | |
fe69a722 | 1555 | { |
6608a7d8 CY |
1556 | family_end = p; |
1557 | break; | |
fe69a722 | 1558 | } |
ef18374f | 1559 | } |
8c102d5b | 1560 | #undef PROP_MATCH |
372fb76b | 1561 | #undef PROP_SAVE |
9ba6fd41 | 1562 | |
8c102d5b | 1563 | if (family_end) |
6608a7d8 CY |
1564 | ASET (font, FONT_FAMILY_INDEX, |
1565 | font_intern_prop (name, family_end - name, 1)); | |
1566 | if (!NILP (size)) | |
1567 | ASET (font, FONT_SIZE_INDEX, size); | |
1568 | if (!NILP (weight)) | |
1569 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, weight); | |
1570 | if (!NILP (slant)) | |
1571 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, slant); | |
1572 | if (!NILP (width)) | |
1573 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, width); | |
8c102d5b | 1574 | } |
17ab8f5d | 1575 | |
9331887d | 1576 | return 0; |
ef18374f KH |
1577 | } |
1578 | ||
1579 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1580 | NAME (NBYTES length), and return the name length. If | |
1581 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1582 | ||
1583 | int | |
09d93395 | 1584 | font_unparse_fcname (Lisp_Object font, int pixel_size, char *name, int nbytes) |
ef18374f | 1585 | { |
b1868a1a | 1586 | Lisp_Object family, foundry; |
c21721cc | 1587 | Lisp_Object val; |
ec6fe57c | 1588 | int point_size; |
b5b8c9e5 | 1589 | int i; |
ef18374f | 1590 | char *p; |
c21721cc | 1591 | char *lim; |
a9262bb8 | 1592 | Lisp_Object styles[3]; |
675e2c69 | 1593 | const char *style_names[3] = { "weight", "slant", "width" }; |
ef18374f | 1594 | |
b1868a1a CY |
1595 | family = AREF (font, FONT_FAMILY_INDEX); |
1596 | if (! NILP (family)) | |
1597 | { | |
1598 | if (SYMBOLP (family)) | |
c21721cc | 1599 | family = SYMBOL_NAME (family); |
b1868a1a CY |
1600 | else |
1601 | family = Qnil; | |
1602 | } | |
ec6fe57c KH |
1603 | |
1604 | val = AREF (font, FONT_SIZE_INDEX); | |
1605 | if (INTEGERP (val)) | |
ef18374f | 1606 | { |
ec6fe57c KH |
1607 | if (XINT (val) != 0) |
1608 | pixel_size = XINT (val); | |
1609 | point_size = -1; | |
ef18374f | 1610 | } |
3ddb0639 | 1611 | else |
ef18374f | 1612 | { |
4e6a86c6 | 1613 | eassert (FLOATP (val)); |
ec6fe57c KH |
1614 | pixel_size = -1; |
1615 | point_size = (int) XFLOAT_DATA (val); | |
ef18374f | 1616 | } |
ec6fe57c | 1617 | |
b1868a1a CY |
1618 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1619 | if (! NILP (foundry)) | |
1620 | { | |
1621 | if (SYMBOLP (foundry)) | |
c21721cc | 1622 | foundry = SYMBOL_NAME (foundry); |
b1868a1a CY |
1623 | else |
1624 | foundry = Qnil; | |
1625 | } | |
ec6fe57c | 1626 | |
35027d0c | 1627 | for (i = 0; i < 3; i++) |
c21721cc | 1628 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
35027d0c | 1629 | |
ef18374f | 1630 | p = name; |
c21721cc | 1631 | lim = name + nbytes; |
b1868a1a | 1632 | if (! NILP (family)) |
8666506e PE |
1633 | { |
1634 | int len = snprintf (p, lim - p, "%s", SSDATA (family)); | |
1635 | if (! (0 <= len && len < lim - p)) | |
1636 | return -1; | |
1637 | p += len; | |
1638 | } | |
ec6fe57c | 1639 | if (point_size > 0) |
8666506e | 1640 | { |
31ff141c | 1641 | int len = snprintf (p, lim - p, &"-%d"[p == name], point_size); |
8666506e PE |
1642 | if (! (0 <= len && len < lim - p)) |
1643 | return -1; | |
1644 | p += len; | |
1645 | } | |
ef18374f | 1646 | else if (pixel_size > 0) |
8666506e PE |
1647 | { |
1648 | int len = snprintf (p, lim - p, ":pixelsize=%d", pixel_size); | |
1649 | if (! (0 <= len && len < lim - p)) | |
1650 | return -1; | |
1651 | p += len; | |
1652 | } | |
35027d0c | 1653 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
8666506e PE |
1654 | { |
1655 | int len = snprintf (p, lim - p, ":foundry=%s", | |
1656 | SSDATA (SYMBOL_NAME (AREF (font, | |
1657 | FONT_FOUNDRY_INDEX)))); | |
1658 | if (! (0 <= len && len < lim - p)) | |
1659 | return -1; | |
1660 | p += len; | |
1661 | } | |
a9262bb8 | 1662 | for (i = 0; i < 3; i++) |
35027d0c | 1663 | if (! NILP (styles[i])) |
8666506e PE |
1664 | { |
1665 | int len = snprintf (p, lim - p, ":%s=%s", style_names[i], | |
1666 | SSDATA (SYMBOL_NAME (styles[i]))); | |
1667 | if (! (0 <= len && len < lim - p)) | |
1668 | return -1; | |
1669 | p += len; | |
1670 | } | |
1671 | ||
35027d0c | 1672 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
8666506e PE |
1673 | { |
1674 | int len = snprintf (p, lim - p, ":dpi=%"pI"d", | |
1675 | XINT (AREF (font, FONT_DPI_INDEX))); | |
1676 | if (! (0 <= len && len < lim - p)) | |
1677 | return -1; | |
1678 | p += len; | |
1679 | } | |
1680 | ||
35027d0c | 1681 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
8666506e PE |
1682 | { |
1683 | int len = snprintf (p, lim - p, ":spacing=%"pI"d", | |
1684 | XINT (AREF (font, FONT_SPACING_INDEX))); | |
1685 | if (! (0 <= len && len < lim - p)) | |
1686 | return -1; | |
1687 | p += len; | |
1688 | } | |
1689 | ||
35027d0c | 1690 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
8666506e PE |
1691 | { |
1692 | int len = snprintf (p, lim - p, | |
1693 | (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0 | |
1694 | ? ":scalable=true" | |
1695 | : ":scalable=false")); | |
1696 | if (! (0 <= len && len < lim - p)) | |
1697 | return -1; | |
1698 | p += len; | |
1699 | } | |
1700 | ||
1701 | return (p - name); | |
ef18374f KH |
1702 | } |
1703 | ||
1704 | /* Parse NAME (null terminated) and store information in FONT | |
1705 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1706 | 0. Otherwise return -1. */ |
ef18374f KH |
1707 | |
1708 | static int | |
984e7f30 | 1709 | font_parse_name (char *name, ptrdiff_t namelen, Lisp_Object font) |
ef18374f | 1710 | { |
8966b757 | 1711 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
984e7f30 DA |
1712 | return font_parse_xlfd (name, namelen, font); |
1713 | return font_parse_fcname (name, namelen, font); | |
ef18374f KH |
1714 | } |
1715 | ||
35027d0c KH |
1716 | |
1717 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1718 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1719 | part. */ | |
45eb10fb | 1720 | |
c2f5bfd6 | 1721 | void |
971de7fb | 1722 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1723 | { |
35027d0c KH |
1724 | int len; |
1725 | char *p0, *p1; | |
1726 | ||
d0ab1ebe KH |
1727 | if (! NILP (family) |
1728 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1729 | { |
35027d0c KH |
1730 | CHECK_STRING (family); |
1731 | len = SBYTES (family); | |
51b59d79 | 1732 | p0 = SSDATA (family); |
8966b757 | 1733 | p1 = strchr (p0, '-'); |
35027d0c | 1734 | if (p1) |
c2f5bfd6 | 1735 | { |
9903d1e6 | 1736 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1737 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1738 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1739 | p1++; |
1740 | len -= p1 - p0; | |
2f286d4f | 1741 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1742 | } |
35027d0c KH |
1743 | else |
1744 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1745 | } |
35027d0c | 1746 | if (! NILP (registry)) |
c2f5bfd6 | 1747 | { |
35027d0c KH |
1748 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1749 | CHECK_STRING (registry); | |
1750 | len = SBYTES (registry); | |
51b59d79 | 1751 | p0 = SSDATA (registry); |
8966b757 | 1752 | p1 = strchr (p0, '-'); |
35027d0c | 1753 | if (! p1) |
c2f5bfd6 | 1754 | { |
35027d0c KH |
1755 | if (SDATA (registry)[len - 1] == '*') |
1756 | registry = concat2 (registry, build_string ("-*")); | |
1757 | else | |
1758 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1759 | } |
35027d0c KH |
1760 | registry = Fdowncase (registry); |
1761 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1762 | } |
1763 | } | |
1764 | ||
45eb10fb | 1765 | \f |
35027d0c KH |
1766 | /* This part (through the next ^L) is still experimental and not |
1767 | tested much. We may drastically change codes. */ | |
10d16101 | 1768 | |
266fee4f | 1769 | /* OTF handler. */ |
10d16101 | 1770 | |
6a3dadd2 KH |
1771 | #if 0 |
1772 | ||
e950d6f1 KH |
1773 | #define LGSTRING_HEADER_SIZE 6 |
1774 | #define LGSTRING_GLYPH_SIZE 8 | |
1775 | ||
1776 | static int | |
1dae0f0a | 1777 | check_gstring (Lisp_Object gstring) |
e950d6f1 KH |
1778 | { |
1779 | Lisp_Object val; | |
d311d28c PE |
1780 | ptrdiff_t i; |
1781 | int j; | |
e950d6f1 KH |
1782 | |
1783 | CHECK_VECTOR (gstring); | |
1784 | val = AREF (gstring, 0); | |
1785 | CHECK_VECTOR (val); | |
1786 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1787 | goto err; | |
1788 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1789 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1790 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1791 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1792 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1793 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1794 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1795 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1796 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1797 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1798 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1799 | |
071132a9 | 1800 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1801 | { |
1802 | val = LGSTRING_GLYPH (gstring, i); | |
1803 | CHECK_VECTOR (val); | |
1804 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1805 | goto err; | |
f9ffa1ea | 1806 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1807 | break; |
f9ffa1ea SM |
1808 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1809 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1810 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1811 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1812 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1813 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1814 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1815 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1816 | { |
f9ffa1ea | 1817 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1818 | CHECK_VECTOR (val); |
1819 | if (ASIZE (val) < 3) | |
1820 | goto err; | |
1821 | for (j = 0; j < 3; j++) | |
1822 | CHECK_NUMBER (AREF (val, j)); | |
1823 | } | |
1824 | } | |
1825 | return i; | |
1826 | err: | |
1827 | error ("Invalid glyph-string format"); | |
1828 | return -1; | |
1829 | } | |
1830 | ||
cf385d93 | 1831 | static void |
1dae0f0a | 1832 | check_otf_features (Lisp_Object otf_features) |
cf385d93 | 1833 | { |
35027d0c | 1834 | Lisp_Object val; |
cf385d93 KH |
1835 | |
1836 | CHECK_CONS (otf_features); | |
1837 | CHECK_SYMBOL (XCAR (otf_features)); | |
1838 | otf_features = XCDR (otf_features); | |
1839 | CHECK_CONS (otf_features); | |
1840 | CHECK_SYMBOL (XCAR (otf_features)); | |
1841 | otf_features = XCDR (otf_features); | |
7d7bbefd | 1842 | for (val = Fcar (otf_features); CONSP (val); val = XCDR (val)) |
cf385d93 | 1843 | { |
34348bd4 | 1844 | CHECK_SYMBOL (XCAR (val)); |
cf385d93 | 1845 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) |
e6c3da20 EZ |
1846 | error ("Invalid OTF GSUB feature: %s", |
1847 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1848 | } |
1849 | otf_features = XCDR (otf_features); | |
7d7bbefd | 1850 | for (val = Fcar (otf_features); CONSP (val); val = XCDR (val)) |
cf385d93 | 1851 | { |
34348bd4 | 1852 | CHECK_SYMBOL (XCAR (val)); |
cf385d93 | 1853 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) |
e6c3da20 EZ |
1854 | error ("Invalid OTF GPOS feature: %s", |
1855 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1856 | } |
1857 | } | |
1858 | ||
c2f5bfd6 KH |
1859 | #ifdef HAVE_LIBOTF |
1860 | #include <otf.h> | |
1861 | ||
733fd013 | 1862 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1863 | |
1864 | static Lisp_Object | |
1dae0f0a | 1865 | otf_tag_symbol (OTF_Tag tag) |
c2f5bfd6 KH |
1866 | { |
1867 | char name[5]; | |
1868 | ||
1869 | OTF_tag_name (tag, name); | |
1870 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1871 | } | |
1872 | ||
1873 | static OTF * | |
1dae0f0a | 1874 | otf_open (Lisp_Object file) |
c2f5bfd6 | 1875 | { |
35027d0c | 1876 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1877 | OTF *otf; |
1878 | ||
1879 | if (! NILP (val)) | |
2b30549c | 1880 | otf = XSAVE_POINTER (XCDR (val), 0); |
733fd013 | 1881 | else |
c2f5bfd6 | 1882 | { |
51b59d79 | 1883 | otf = STRINGP (file) ? OTF_open (SSDATA (file)) : NULL; |
1396ac86 | 1884 | val = make_save_ptr (otf); |
35027d0c | 1885 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1886 | } |
733fd013 | 1887 | return otf; |
c2f5bfd6 KH |
1888 | } |
1889 | ||
1890 | ||
1891 | /* Return a list describing which scripts/languages FONT supports by | |
1892 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1893 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1894 | |
1895 | Lisp_Object | |
1dae0f0a | 1896 | font_otf_capability (struct font *font) |
c2f5bfd6 KH |
1897 | { |
1898 | OTF *otf; | |
1899 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1900 | int i; | |
1901 | ||
35027d0c | 1902 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1903 | if (! otf) |
1904 | return Qnil; | |
1905 | for (i = 0; i < 2; i++) | |
1906 | { | |
1907 | OTF_GSUB_GPOS *gsub_gpos; | |
1908 | Lisp_Object script_list = Qnil; | |
1909 | int j; | |
1910 | ||
1911 | if (OTF_get_features (otf, i == 0) < 0) | |
1912 | continue; | |
1913 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1914 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1915 | { | |
1916 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1917 | Lisp_Object langsys_list = Qnil; | |
1918 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1919 | int k; | |
1920 | ||
1921 | for (k = script->LangSysCount; k >= 0; k--) | |
1922 | { | |
1923 | OTF_LangSys *langsys; | |
1924 | Lisp_Object feature_list = Qnil; | |
1925 | Lisp_Object langsys_tag; | |
1926 | int l; | |
1927 | ||
e80e09b4 | 1928 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1929 | { |
1930 | langsys = &script->DefaultLangSys; | |
1931 | langsys_tag = Qnil; | |
1932 | } | |
1933 | else | |
1934 | { | |
1935 | langsys = script->LangSys + k; | |
1936 | langsys_tag | |
1937 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1938 | } | |
e80e09b4 | 1939 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1940 | { |
1941 | OTF_Feature *feature | |
1942 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1943 | Lisp_Object feature_tag | |
1944 | = otf_tag_symbol (feature->FeatureTag); | |
1945 | ||
1946 | feature_list = Fcons (feature_tag, feature_list); | |
1947 | } | |
1948 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1949 | langsys_list); | |
1950 | } | |
1951 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1952 | script_list); | |
1953 | } | |
1954 | ||
1955 | if (i == 0) | |
1956 | XSETCAR (capability, script_list); | |
1957 | else | |
1958 | XSETCDR (capability, script_list); | |
1959 | } | |
1960 | ||
1961 | return capability; | |
1962 | } | |
1963 | ||
733fd013 KH |
1964 | /* Parse OTF features in SPEC and write a proper features spec string |
1965 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1966 | assured that the sufficient memory has already allocated for | |
1967 | FEATURES. */ | |
1968 | ||
e80e09b4 | 1969 | static void |
1dae0f0a | 1970 | generate_otf_features (Lisp_Object spec, char *features) |
c2f5bfd6 KH |
1971 | { |
1972 | Lisp_Object val; | |
35027d0c | 1973 | char *p; |
a864ef14 | 1974 | bool asterisk; |
c2f5bfd6 | 1975 | |
733fd013 | 1976 | p = features; |
e80e09b4 | 1977 | *p = '\0'; |
c2f5bfd6 KH |
1978 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1979 | { | |
1980 | val = XCAR (spec); | |
e80e09b4 KH |
1981 | CHECK_SYMBOL (val); |
1982 | if (p > features) | |
733fd013 | 1983 | *p++ = ','; |
c2f5bfd6 KH |
1984 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1985 | { | |
1986 | asterisk = 1; | |
e80e09b4 | 1987 | *p++ = '*'; |
c2f5bfd6 KH |
1988 | } |
1989 | else if (! asterisk) | |
e80e09b4 KH |
1990 | { |
1991 | val = SYMBOL_NAME (val); | |
c21721cc | 1992 | p += esprintf (p, "%s", SDATA (val)); |
e80e09b4 | 1993 | } |
c2f5bfd6 | 1994 | else |
e80e09b4 KH |
1995 | { |
1996 | val = SYMBOL_NAME (val); | |
c21721cc | 1997 | p += esprintf (p, "~%s", SDATA (val)); |
e80e09b4 | 1998 | } |
c2f5bfd6 | 1999 | } |
e80e09b4 KH |
2000 | if (CONSP (spec)) |
2001 | error ("OTF spec too long"); | |
2002 | } | |
2003 | ||
733fd013 | 2004 | Lisp_Object |
1dae0f0a | 2005 | font_otf_DeviceTable (OTF_DeviceTable *device_table) |
733fd013 KH |
2006 | { |
2007 | int len = device_table->StartSize - device_table->EndSize + 1; | |
2008 | ||
2009 | return Fcons (make_number (len), | |
2010 | make_unibyte_string (device_table->DeltaValue, len)); | |
2011 | } | |
2012 | ||
2013 | Lisp_Object | |
1dae0f0a | 2014 | font_otf_ValueRecord (int value_format, OTF_ValueRecord *value_record) |
733fd013 KH |
2015 | { |
2016 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
2017 | ||
2018 | if (value_format & OTF_XPlacement) | |
43c0454d | 2019 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 2020 | if (value_format & OTF_YPlacement) |
43c0454d | 2021 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 2022 | if (value_format & OTF_XAdvance) |
43c0454d | 2023 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 2024 | if (value_format & OTF_YAdvance) |
43c0454d | 2025 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
2026 | if (value_format & OTF_XPlaDevice) |
2027 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
2028 | if (value_format & OTF_YPlaDevice) | |
2029 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
2030 | if (value_format & OTF_XAdvDevice) | |
2031 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
2032 | if (value_format & OTF_YAdvDevice) | |
2033 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
2034 | return val; | |
2035 | } | |
2036 | ||
2037 | Lisp_Object | |
1dae0f0a | 2038 | font_otf_Anchor (OTF_Anchor *anchor) |
733fd013 KH |
2039 | { |
2040 | Lisp_Object val; | |
2041 | ||
2042 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2043 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2044 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2045 | if (anchor->AnchorFormat == 2) | |
2046 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2047 | else | |
2048 | { | |
2049 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2050 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2051 | } | |
2052 | return val; | |
2053 | } | |
c2f5bfd6 | 2054 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2055 | #endif /* 0 */ |
c2f5bfd6 | 2056 | |
c2f5bfd6 | 2057 | \f |
266fee4f | 2058 | /* Font sorting. */ |
c2f5bfd6 | 2059 | |
55e41770 | 2060 | static double |
971de7fb | 2061 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
2062 | { |
2063 | Lisp_Object tail, elt; | |
2064 | Lisp_Object name = Qnil; | |
2065 | ||
2066 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2067 | { | |
2068 | elt = XCAR (tail); | |
2069 | if (FLOATP (XCDR (elt))) | |
2070 | { | |
2071 | if (STRINGP (XCAR (elt))) | |
2072 | { | |
2073 | if (NILP (name)) | |
2074 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2075 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2076 | return XFLOAT_DATA (XCDR (elt)); | |
2077 | } | |
2078 | else if (FONT_SPEC_P (XCAR (elt))) | |
2079 | { | |
2080 | if (font_match_p (XCAR (elt), font_entity)) | |
2081 | return XFLOAT_DATA (XCDR (elt)); | |
2082 | } | |
2083 | } | |
2084 | } | |
2085 | return 1.0; | |
2086 | } | |
2087 | ||
c2f5bfd6 KH |
2088 | /* We sort fonts by scoring each of them against a specified |
2089 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2090 | the value is, the closer the font is to the font-spec. | |
2091 | ||
56dd2d86 | 2092 | The lowest 2 bits of the score are used for driver type. The font |
4007dd1c | 2093 | available by the most preferred font driver is 0. |
35027d0c | 2094 | |
56dd2d86 | 2095 | The 4 7-bit fields in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2096 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2097 | ||
2098 | /* How many bits to shift to store the difference value of each font | |
56dd2d86 | 2099 | property in a score. Note that floats for FONT_TYPE_INDEX and |
35027d0c | 2100 | FONT_REGISTRY_INDEX are not used. */ |
c2f5bfd6 KH |
2101 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2102 | ||
9331887d KH |
2103 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2104 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2105 | SPEC_PROP. */ |
c2f5bfd6 KH |
2106 | |
2107 | static unsigned | |
971de7fb | 2108 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2109 | { |
2110 | unsigned score = 0; | |
2111 | int i; | |
c2f5bfd6 | 2112 | |
35027d0c KH |
2113 | /* Score three style numeric fields. Maximum difference is 127. */ |
2114 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2115 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2116 | { | |
790771b1 PE |
2117 | EMACS_INT diff = ((XINT (AREF (entity, i)) >> 8) |
2118 | - (XINT (spec_prop[i]) >> 8)); | |
71376d4b | 2119 | score |= min (eabs (diff), 127) << sort_shift_bits[i]; |
35027d0c KH |
2120 | } |
2121 | ||
2122 | /* Score the size. Maximum difference is 127. */ | |
2123 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2124 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2125 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2126 | { |
2127 | /* We use the higher 6-bit for the actual size difference. The | |
2128 | lowest bit is set if the DPI is different. */ | |
b79e8648 PE |
2129 | EMACS_INT diff; |
2130 | EMACS_INT pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2131 | |
55e41770 KH |
2132 | if (CONSP (Vface_font_rescale_alist)) |
2133 | pixel_size *= font_rescale_ratio (entity); | |
71376d4b | 2134 | diff = eabs (pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX))) << 1; |
35027d0c KH |
2135 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2136 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2137 | diff |= 1; | |
c0a6070d KH |
2138 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2139 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2140 | diff |= 1; | |
35027d0c | 2141 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2142 | } |
2143 | ||
2144 | return score; | |
2145 | } | |
2146 | ||
2147 | ||
72d36834 KH |
2148 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2149 | of font-entity vectors. */ | |
c2f5bfd6 | 2150 | |
72d36834 KH |
2151 | static Lisp_Object |
2152 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2153 | { |
72d36834 | 2154 | int nargs = XINT (Flength (list)); |
663e2b3f | 2155 | Lisp_Object *args = alloca (word_size * nargs); |
72d36834 KH |
2156 | int i; |
2157 | ||
2158 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2159 | args[i] = XCAR (list); | |
2160 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2161 | } |
2162 | ||
2163 | ||
2164 | /* The structure for elements being sorted by qsort. */ | |
2165 | struct font_sort_data | |
2166 | { | |
2167 | unsigned score; | |
72d36834 | 2168 | int font_driver_preference; |
c2f5bfd6 KH |
2169 | Lisp_Object entity; |
2170 | }; | |
2171 | ||
2172 | ||
72d36834 KH |
2173 | /* The comparison function for qsort. */ |
2174 | ||
2175 | static int | |
971de7fb | 2176 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2177 | { |
2178 | const struct font_sort_data *data1 = d1; | |
2179 | const struct font_sort_data *data2 = d2; | |
2180 | ||
2181 | if (data1->score < data2->score) | |
2182 | return -1; | |
2183 | else if (data1->score > data2->score) | |
2184 | return 1; | |
2185 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2186 | } | |
2187 | ||
2188 | ||
2189 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2190 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2191 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2192 | of FRAME before sorting. |
35027d0c | 2193 | |
c9477f01 KH |
2194 | If BEST-ONLY is nonzero, return the best matching entity (that |
2195 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2196 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2197 | a single vector of font-entities. | |
c9477f01 | 2198 | |
72d36834 KH |
2199 | This function does no optimization for the case that the total |
2200 | number of elements is 1. The caller should avoid calling this in | |
2201 | such a case. */ | |
c2f5bfd6 KH |
2202 | |
2203 | static Lisp_Object | |
fdb396e2 DA |
2204 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, |
2205 | struct frame *f, int best_only) | |
c2f5bfd6 | 2206 | { |
9331887d | 2207 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2208 | int len, maxlen, i; |
c2f5bfd6 | 2209 | struct font_sort_data *data; |
35027d0c | 2210 | unsigned best_score; |
72d36834 | 2211 | Lisp_Object best_entity; |
5ad03b97 | 2212 | Lisp_Object tail, vec IF_LINT (= Qnil); |
c2f5bfd6 KH |
2213 | USE_SAFE_ALLOCA; |
2214 | ||
9903d1e6 | 2215 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2216 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2217 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2218 | prefer_prop[FONT_SIZE_INDEX] | |
fdb396e2 | 2219 | = make_number (font_pixel_size (f, prefer)); |
9331887d | 2220 | |
72d36834 KH |
2221 | if (NILP (XCDR (list))) |
2222 | { | |
2223 | /* What we have to take care of is this single vector. */ | |
2224 | vec = XCAR (list); | |
2225 | maxlen = ASIZE (vec); | |
2226 | } | |
2227 | else if (best_only) | |
2228 | { | |
2229 | /* We don't have to perform sort, so there's no need of creating | |
2230 | a single vector. But, we must find the length of the longest | |
2231 | vector. */ | |
2232 | maxlen = 0; | |
2233 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2234 | if (maxlen < ASIZE (XCAR (tail))) | |
2235 | maxlen = ASIZE (XCAR (tail)); | |
2236 | } | |
2237 | else | |
2238 | { | |
2239 | /* We have to create a single vector to sort it. */ | |
2240 | vec = font_vconcat_entity_vectors (list); | |
2241 | maxlen = ASIZE (vec); | |
2242 | } | |
2243 | ||
98c6f1e3 | 2244 | data = SAFE_ALLOCA (maxlen * sizeof *data); |
c9477f01 KH |
2245 | best_score = 0xFFFFFFFF; |
2246 | best_entity = Qnil; | |
72d36834 KH |
2247 | |
2248 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2249 | { |
72d36834 KH |
2250 | int font_driver_preference = 0; |
2251 | Lisp_Object current_font_driver; | |
ce75f06e | 2252 | |
72d36834 KH |
2253 | if (best_only) |
2254 | vec = XCAR (tail); | |
2255 | len = ASIZE (vec); | |
2256 | ||
2257 | /* We are sure that the length of VEC > 0. */ | |
2258 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2259 | /* Score the elements. */ | |
2260 | for (i = 0; i < len; i++) | |
35027d0c | 2261 | { |
72d36834 KH |
2262 | data[i].entity = AREF (vec, i); |
2263 | data[i].score | |
2264 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2265 | > 0) | |
2266 | ? font_score (data[i].entity, prefer_prop) | |
2267 | : 0xFFFFFFFF); | |
2268 | if (best_only && best_score > data[i].score) | |
2269 | { | |
2270 | best_score = data[i].score; | |
2271 | best_entity = data[i].entity; | |
2272 | if (best_score == 0) | |
2273 | break; | |
2274 | } | |
2275 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2276 | { | |
2277 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2278 | font_driver_preference++; | |
2279 | } | |
2280 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2281 | } |
72d36834 KH |
2282 | |
2283 | /* Sort if necessary. */ | |
2284 | if (! best_only) | |
2285 | { | |
2286 | qsort (data, len, sizeof *data, font_compare); | |
2287 | for (i = 0; i < len; i++) | |
2288 | ASET (vec, i, data[i].entity); | |
2289 | break; | |
2290 | } | |
2291 | else | |
2292 | vec = best_entity; | |
c2f5bfd6 | 2293 | } |
72d36834 | 2294 | |
c2f5bfd6 KH |
2295 | SAFE_FREE (); |
2296 | ||
652b9560 | 2297 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2298 | return vec; |
2299 | } | |
2300 | ||
2301 | \f | |
2302 | /* API of Font Service Layer. */ | |
2303 | ||
45eb10fb KH |
2304 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2305 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2306 | function with font_sort_order after setting up it. */ | |
2307 | ||
c2f5bfd6 | 2308 | void |
971de7fb | 2309 | font_update_sort_order (int *order) |
c2f5bfd6 | 2310 | { |
35027d0c | 2311 | int i, shift_bits; |
c2f5bfd6 | 2312 | |
943b7eea | 2313 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2314 | { |
2315 | int xlfd_idx = order[i]; | |
2316 | ||
2317 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2318 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2319 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2320 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2321 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2322 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2323 | else | |
2324 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2325 | } | |
2326 | } | |
2327 | ||
a864ef14 PE |
2328 | static bool |
2329 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, | |
2330 | Lisp_Object features, Lisp_Object table) | |
51c13510 KH |
2331 | { |
2332 | Lisp_Object val; | |
a864ef14 | 2333 | bool negative; |
51c13510 KH |
2334 | |
2335 | table = assq_no_quit (script, table); | |
2336 | if (NILP (table)) | |
2337 | return 0; | |
2338 | table = XCDR (table); | |
2339 | if (! NILP (langsys)) | |
2340 | { | |
2341 | table = assq_no_quit (langsys, table); | |
2342 | if (NILP (table)) | |
2343 | return 0; | |
2344 | } | |
2345 | else | |
2346 | { | |
2347 | val = assq_no_quit (Qnil, table); | |
2348 | if (NILP (val)) | |
2349 | table = XCAR (table); | |
2350 | else | |
2351 | table = val; | |
2352 | } | |
2353 | table = XCDR (table); | |
2354 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2355 | { | |
2356 | if (NILP (XCAR (features))) | |
c423ecca KH |
2357 | { |
2358 | negative = 1; | |
2359 | continue; | |
2360 | } | |
51c13510 KH |
2361 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2362 | return 0; | |
2363 | } | |
2364 | return 1; | |
2365 | } | |
2366 | ||
2367 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2368 | ||
a864ef14 | 2369 | static bool |
3cba9369 | 2370 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2371 | { |
2372 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2373 | ||
2374 | script = XCAR (spec); | |
2375 | spec = XCDR (spec); | |
2376 | if (! NILP (spec)) | |
2377 | { | |
2378 | langsys = XCAR (spec); | |
2379 | spec = XCDR (spec); | |
2380 | if (! NILP (spec)) | |
2381 | { | |
2382 | gsub = XCAR (spec); | |
2383 | spec = XCDR (spec); | |
2384 | if (! NILP (spec)) | |
2385 | gpos = XCAR (spec); | |
2386 | } | |
2387 | } | |
2388 | ||
2389 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2390 | XCAR (otf_capability))) | |
2391 | return 0; | |
2392 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2393 | XCDR (otf_capability))) | |
2394 | return 0; | |
2395 | return 1; | |
2396 | } | |
2397 | ||
45eb10fb | 2398 | |
51c13510 KH |
2399 | |
2400 | /* Check if FONT (font-entity or font-object) matches with the font | |
2401 | specification SPEC. */ | |
45eb10fb | 2402 | |
a864ef14 | 2403 | bool |
971de7fb | 2404 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2405 | { |
51c13510 KH |
2406 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2407 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2408 | int i; |
2409 | ||
51c13510 KH |
2410 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2411 | if (! NILP (AREF (spec, i)) | |
2412 | && ! NILP (AREF (font, i)) | |
2413 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2414 | return 0; | |
2415 | props = XFONT_SPEC (spec)->props; | |
2416 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2417 | { | |
2418 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2419 | prop[i] = AREF (spec, i); | |
2420 | prop[FONT_SIZE_INDEX] | |
2421 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2422 | props = prop; | |
2423 | } | |
2424 | ||
2425 | if (font_score (font, props) > 0) | |
2426 | return 0; | |
2427 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2428 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2429 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2430 | { |
51c13510 KH |
2431 | Lisp_Object key = XCAR (XCAR (extra)); |
2432 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2433 | ||
2434 | if (EQ (key, QClang)) | |
2435 | { | |
2436 | val2 = assq_no_quit (key, font_extra); | |
2437 | if (NILP (val2)) | |
2438 | return 0; | |
2439 | val2 = XCDR (val2); | |
2440 | if (CONSP (val)) | |
2441 | { | |
2442 | if (! CONSP (val2)) | |
2443 | return 0; | |
2444 | while (CONSP (val)) | |
2445 | if (NILP (Fmemq (val, val2))) | |
2446 | return 0; | |
2447 | } | |
2448 | else | |
2449 | if (CONSP (val2) | |
2450 | ? NILP (Fmemq (val, XCDR (val2))) | |
2451 | : ! EQ (val, val2)) | |
2452 | return 0; | |
2453 | } | |
2454 | else if (EQ (key, QCscript)) | |
2455 | { | |
2456 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2457 | if (CONSP (val2)) |
2458 | { | |
2459 | val2 = XCDR (val2); | |
2460 | if (CONSP (val2)) | |
2461 | { | |
2462 | /* All characters in the list must be supported. */ | |
2463 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2464 | { | |
d311d28c | 2465 | if (! CHARACTERP (XCAR (val2))) |
5bdd4dd2 KH |
2466 | continue; |
2467 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2468 | == FONT_INVALID_CODE) | |
2469 | return 0; | |
2470 | } | |
2471 | } | |
2472 | else if (VECTORP (val2)) | |
2473 | { | |
2474 | /* At most one character in the vector must be supported. */ | |
2475 | for (i = 0; i < ASIZE (val2); i++) | |
2476 | { | |
d311d28c | 2477 | if (! CHARACTERP (AREF (val2, i))) |
5bdd4dd2 KH |
2478 | continue; |
2479 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2480 | != FONT_INVALID_CODE) | |
f5485732 | 2481 | break; |
5bdd4dd2 KH |
2482 | } |
2483 | if (i == ASIZE (val2)) | |
2484 | return 0; | |
2485 | } | |
2486 | } | |
51c13510 KH |
2487 | } |
2488 | else if (EQ (key, QCotf)) | |
2489 | { | |
2490 | struct font *fontp; | |
2491 | ||
2492 | if (! FONT_OBJECT_P (font)) | |
2493 | return 0; | |
2494 | fontp = XFONT_OBJECT (font); | |
2495 | if (! fontp->driver->otf_capability) | |
2496 | return 0; | |
2497 | val2 = fontp->driver->otf_capability (fontp); | |
2498 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2499 | return 0; | |
2500 | } | |
35027d0c KH |
2501 | } |
2502 | ||
51c13510 | 2503 | return 1; |
ef18374f | 2504 | } |
ca4da08a | 2505 | \f |
819e81df | 2506 | |
ca4da08a KH |
2507 | /* Font cache |
2508 | ||
2509 | Each font backend has the callback function get_cache, and it | |
2510 | returns a cons cell of which cdr part can be freely used for | |
2511 | caching fonts. The cons cell may be shared by multiple frames | |
2512 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2513 | ||
2514 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2515 | ||
2516 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2517 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
8c1c7611 | 2518 | cons (FONT-SPEC . [FONT-ENTITY ...]). */ |
ca4da08a | 2519 | |
a10c8269 DA |
2520 | static void font_prepare_cache (struct frame *, struct font_driver *); |
2521 | static void font_finish_cache (struct frame *, struct font_driver *); | |
2522 | static Lisp_Object font_get_cache (struct frame *, struct font_driver *); | |
2523 | static void font_clear_cache (struct frame *, Lisp_Object, | |
f57e2426 | 2524 | struct font_driver *); |
ca4da08a KH |
2525 | |
2526 | static void | |
a10c8269 | 2527 | font_prepare_cache (struct frame *f, struct font_driver *driver) |
ca4da08a KH |
2528 | { |
2529 | Lisp_Object cache, val; | |
2530 | ||
2531 | cache = driver->get_cache (f); | |
2532 | val = XCDR (cache); | |
2533 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2534 | val = XCDR (val); | |
2535 | if (NILP (val)) | |
2536 | { | |
6c6f1994 | 2537 | val = list2 (driver->type, make_number (1)); |
ca4da08a KH |
2538 | XSETCDR (cache, Fcons (val, XCDR (cache))); |
2539 | } | |
2540 | else | |
2541 | { | |
2542 | val = XCDR (XCAR (val)); | |
2543 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2544 | } | |
2545 | } | |
2546 | ||
43c0454d | 2547 | |
ca4da08a | 2548 | static void |
a10c8269 | 2549 | font_finish_cache (struct frame *f, struct font_driver *driver) |
ca4da08a KH |
2550 | { |
2551 | Lisp_Object cache, val, tmp; | |
2552 | ||
2553 | ||
2554 | cache = driver->get_cache (f); | |
2555 | val = XCDR (cache); | |
2556 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2557 | cache = val, val = XCDR (val); | |
4e6a86c6 | 2558 | eassert (! NILP (val)); |
ca4da08a | 2559 | tmp = XCDR (XCAR (val)); |
43c0454d | 2560 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2561 | if (XINT (XCAR (tmp)) == 0) |
2562 | { | |
2563 | font_clear_cache (f, XCAR (val), driver); | |
2564 | XSETCDR (cache, XCDR (val)); | |
2565 | } | |
ca4da08a KH |
2566 | } |
2567 | ||
43c0454d | 2568 | |
ca4da08a | 2569 | static Lisp_Object |
a10c8269 | 2570 | font_get_cache (struct frame *f, struct font_driver *driver) |
ca4da08a KH |
2571 | { |
2572 | Lisp_Object val = driver->get_cache (f); | |
2573 | Lisp_Object type = driver->type; | |
2574 | ||
4e6a86c6 | 2575 | eassert (CONSP (val)); |
ca4da08a | 2576 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
4e6a86c6 | 2577 | eassert (CONSP (val)); |
ca4da08a KH |
2578 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2579 | val = XCDR (XCAR (val)); | |
2580 | return val; | |
2581 | } | |
2582 | ||
43c0454d | 2583 | |
ca4da08a | 2584 | static void |
a10c8269 | 2585 | font_clear_cache (struct frame *f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2586 | { |
2587 | Lisp_Object tail, elt; | |
8c1c7611 DA |
2588 | Lisp_Object entity; |
2589 | ptrdiff_t i; | |
51c01100 | 2590 | |
ca4da08a KH |
2591 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2592 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2593 | { | |
2594 | elt = XCAR (tail); | |
8c1c7611 | 2595 | /* elt should have the form (FONT-SPEC . [FONT-ENTITY ...]) */ |
6136b72f | 2596 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) |
ca4da08a | 2597 | { |
8c1c7611 DA |
2598 | elt = XCDR (elt); |
2599 | eassert (VECTORP (elt)); | |
2600 | for (i = 0; i < ASIZE (elt); i++) | |
ca4da08a | 2601 | { |
8c1c7611 | 2602 | entity = AREF (elt, i); |
ca4da08a | 2603 | |
6136b72f CY |
2604 | if (FONT_ENTITY_P (entity) |
2605 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2606 | { |
2607 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2608 | ||
2609 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2610 | { | |
2611 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2612 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2613 | |
5e634ec9 KH |
2614 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2615 | { | |
4e6a86c6 | 2616 | eassert (font && driver == font->driver); |
78e0b35c | 2617 | driver->close (font); |
5e634ec9 | 2618 | } |
ca4da08a KH |
2619 | } |
2620 | if (driver->free_entity) | |
2621 | driver->free_entity (entity); | |
2622 | } | |
2623 | } | |
2624 | } | |
2625 | } | |
2626 | XSETCDR (cache, Qnil); | |
2627 | } | |
2628 | \f | |
2629 | ||
c2f5bfd6 KH |
2630 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2631 | ||
7d56b2dd | 2632 | /* Check each font-entity in VEC, and return a list of font-entities |
56dd2d86 | 2633 | that satisfy these conditions: |
7d56b2dd KH |
2634 | (1) matches with SPEC and SIZE if SPEC is not nil, and |
2635 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2636 | */ | |
2637 | ||
7b81e2d0 | 2638 | static Lisp_Object |
971de7fb | 2639 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2640 | { |
d0ab1ebe | 2641 | Lisp_Object entity, val; |
35027d0c | 2642 | enum font_property_index prop; |
72d36834 | 2643 | int i; |
45eb10fb | 2644 | |
72d36834 | 2645 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2646 | { |
72d36834 | 2647 | entity = AREF (vec, i); |
7d56b2dd KH |
2648 | if (! NILP (Vface_ignored_fonts)) |
2649 | { | |
2650 | char name[256]; | |
d923b542 | 2651 | ptrdiff_t namelen; |
7d56b2dd KH |
2652 | Lisp_Object tail, regexp; |
2653 | ||
d923b542 DA |
2654 | namelen = font_unparse_xlfd (entity, 0, name, 256); |
2655 | if (namelen >= 0) | |
7d56b2dd KH |
2656 | { |
2657 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2658 | { | |
2659 | regexp = XCAR (tail); | |
2660 | if (STRINGP (regexp) | |
d923b542 DA |
2661 | && fast_c_string_match_ignore_case (regexp, name, |
2662 | namelen) >= 0) | |
7d56b2dd KH |
2663 | break; |
2664 | } | |
2665 | if (CONSP (tail)) | |
2666 | continue; | |
2667 | } | |
2668 | } | |
2669 | if (NILP (spec)) | |
2670 | { | |
2671 | val = Fcons (entity, val); | |
2672 | continue; | |
2673 | } | |
35027d0c KH |
2674 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2675 | if (INTEGERP (AREF (spec, prop)) | |
2676 | && ((XINT (AREF (spec, prop)) >> 8) | |
2677 | != (XINT (AREF (entity, prop)) >> 8))) | |
2678 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2679 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2680 | && size |
2681 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2682 | { | |
2683 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2684 | |
71376d4b | 2685 | if (eabs (diff) > FONT_PIXEL_SIZE_QUANTUM) |
35027d0c KH |
2686 | prop = FONT_SPEC_MAX; |
2687 | } | |
7181ea6a KH |
2688 | if (prop < FONT_SPEC_MAX |
2689 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2690 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2691 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2692 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2693 | prop = FONT_SPEC_MAX; | |
2694 | if (prop < FONT_SPEC_MAX | |
2695 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2696 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2697 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2698 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2699 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2700 | prop = FONT_SPEC_MAX; | |
35027d0c | 2701 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2702 | val = Fcons (entity, val); |
35027d0c | 2703 | } |
72d36834 | 2704 | return (Fvconcat (1, &val)); |
35027d0c KH |
2705 | } |
2706 | ||
2707 | ||
72d36834 | 2708 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2709 | FRAME. Each elements in the list is a vector of entities from the |
2710 | same font-driver. */ | |
35027d0c KH |
2711 | |
2712 | Lisp_Object | |
fdb396e2 | 2713 | font_list_entities (struct frame *f, Lisp_Object spec) |
c2f5bfd6 | 2714 | { |
c2f5bfd6 | 2715 | struct font_driver_list *driver_list = f->font_driver_list; |
4007dd1c | 2716 | Lisp_Object ftype, val; |
72d36834 | 2717 | Lisp_Object list = Qnil; |
35027d0c | 2718 | int size; |
a864ef14 | 2719 | bool need_filtering = 0; |
c2f5bfd6 KH |
2720 | int i; |
2721 | ||
4e6a86c6 | 2722 | eassert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2723 | |
35027d0c KH |
2724 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2725 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2726 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2727 | size = font_pixel_size (f, spec); | |
2728 | else | |
2729 | size = 0; | |
2730 | ||
c2f5bfd6 | 2731 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2732 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2733 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2734 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
56201685 PE |
2735 | if (i != FONT_SPACING_INDEX) |
2736 | { | |
2737 | ASET (scratch_font_spec, i, Qnil); | |
2738 | if (! NILP (AREF (spec, i))) | |
2739 | need_filtering = 1; | |
2740 | } | |
aa50ca2f | 2741 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2742 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2743 | ||
a378aa9d | 2744 | for (; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2745 | if (driver_list->on |
2746 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2747 | { |
ca4da08a | 2748 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2749 | |
e4c93315 | 2750 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2751 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2752 | if (CONSP (val)) | |
2753 | val = XCDR (val); | |
2754 | else | |
c2f5bfd6 | 2755 | { |
4007dd1c | 2756 | Lisp_Object copy; |
35027d0c | 2757 | |
fdb396e2 | 2758 | val = driver_list->driver->list (f, scratch_font_spec); |
72d36834 | 2759 | if (NILP (val)) |
9730daca | 2760 | val = zero_vector; |
72d36834 KH |
2761 | else |
2762 | val = Fvconcat (1, &val); | |
92470028 | 2763 | copy = copy_font_spec (scratch_font_spec); |
4007dd1c KH |
2764 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2765 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2766 | } |
7d56b2dd KH |
2767 | if (ASIZE (val) > 0 |
2768 | && (need_filtering | |
2769 | || ! NILP (Vface_ignored_fonts))) | |
2770 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2771 | if (ASIZE (val) > 0) |
2772 | list = Fcons (val, list); | |
c2f5bfd6 | 2773 | } |
35027d0c | 2774 | |
72d36834 KH |
2775 | list = Fnreverse (list); |
2776 | FONT_ADD_LOG ("list", spec, list); | |
2777 | return list; | |
c2f5bfd6 KH |
2778 | } |
2779 | ||
45eb10fb | 2780 | |
35027d0c KH |
2781 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2782 | nil, is an array of face's attributes, which specifies preferred | |
2783 | font-related attributes. */ | |
45eb10fb | 2784 | |
e950d6f1 | 2785 | static Lisp_Object |
a10c8269 | 2786 | font_matching_entity (struct frame *f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2787 | { |
e950d6f1 KH |
2788 | struct font_driver_list *driver_list = f->font_driver_list; |
2789 | Lisp_Object ftype, size, entity; | |
92470028 | 2790 | Lisp_Object work = copy_font_spec (spec); |
e950d6f1 KH |
2791 | |
2792 | ftype = AREF (spec, FONT_TYPE_INDEX); | |
2793 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2794 | |
8d0e382e AR |
2795 | if (FLOATP (size)) |
2796 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2797 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2798 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2799 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2800 | ||
e950d6f1 KH |
2801 | entity = Qnil; |
2802 | for (; driver_list; driver_list = driver_list->next) | |
2803 | if (driver_list->on | |
2804 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2805 | { | |
ca4da08a | 2806 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2807 | Lisp_Object copy; |
e950d6f1 | 2808 | |
819ab95f KH |
2809 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2810 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2811 | if (CONSP (entity)) |
e950d6f1 KH |
2812 | entity = XCDR (entity); |
2813 | else | |
2814 | { | |
fdb396e2 | 2815 | entity = driver_list->driver->match (f, work); |
92470028 | 2816 | copy = copy_font_spec (work); |
7cee5d63 KH |
2817 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2818 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2819 | } |
2820 | if (! NILP (entity)) | |
2821 | break; | |
2822 | } | |
652b9560 | 2823 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2824 | return entity; |
2825 | } | |
2826 | ||
45eb10fb KH |
2827 | |
2828 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2829 | opened font object. */ | |
2830 | ||
c2f5bfd6 | 2831 | static Lisp_Object |
a10c8269 | 2832 | font_open_entity (struct frame *f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2833 | { |
2834 | struct font_driver_list *driver_list; | |
43c0454d | 2835 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2836 | struct font *font; |
8bd722db | 2837 | int min_width, height, psize; |
c2f5bfd6 | 2838 | |
4e6a86c6 | 2839 | eassert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2840 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2841 | if (XINT (size) != 0) |
7e70a152 | 2842 | pixel_size = XINT (size); |
c2f5bfd6 | 2843 | |
35027d0c KH |
2844 | val = AREF (entity, FONT_TYPE_INDEX); |
2845 | for (driver_list = f->font_driver_list; | |
2846 | driver_list && ! EQ (driver_list->driver->type, val); | |
2847 | driver_list = driver_list->next); | |
2848 | if (! driver_list) | |
2849 | return Qnil; | |
c2f5bfd6 | 2850 | |
d0cf45b7 JD |
2851 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2852 | objlist = XCDR (objlist)) | |
2853 | { | |
2854 | Lisp_Object fn = XCAR (objlist); | |
2855 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2856 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2857 | { | |
2858 | if (driver_list->driver->cached_font_ok == NULL | |
2859 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2860 | return fn; | |
2861 | } | |
2862 | } | |
2863 | ||
8bd722db KH |
2864 | /* We always open a font of manageable size; i.e non-zero average |
2865 | width and height. */ | |
2866 | for (psize = pixel_size; ; psize++) | |
2867 | { | |
2868 | font_object = driver_list->driver->open (f, entity, psize); | |
2869 | if (NILP (font_object)) | |
2870 | return Qnil; | |
2871 | font = XFONT_OBJECT (font_object); | |
2872 | if (font->average_width > 0 && font->height > 0) | |
2873 | break; | |
2874 | } | |
2875 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2876 | FONT_ADD_LOG ("open", entity, font_object); |
35027d0c KH |
2877 | ASET (entity, FONT_OBJLIST_INDEX, |
2878 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2879 | |
2880 | font = XFONT_OBJECT (font_object); | |
2881 | min_width = (font->min_width ? font->min_width | |
2882 | : font->average_width ? font->average_width | |
2883 | : font->space_width ? font->space_width | |
2884 | : 1); | |
d26424c5 | 2885 | height = (font->height ? font->height : 1); |
819e81df | 2886 | #ifdef HAVE_WINDOW_SYSTEM |
aad3612f DA |
2887 | FRAME_DISPLAY_INFO (f)->n_fonts++; |
2888 | if (FRAME_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2889 | { |
35027d0c | 2890 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2891 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
bd0443bb | 2892 | f->fonts_changed = 1; |
35027d0c KH |
2893 | } |
2894 | else | |
2895 | { | |
2896 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
bd0443bb | 2897 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, f->fonts_changed = 1; |
d26424c5 | 2898 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
bd0443bb | 2899 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, f->fonts_changed = 1; |
43c0454d | 2900 | } |
819e81df | 2901 | #endif |
43c0454d KH |
2902 | |
2903 | return font_object; | |
c2f5bfd6 KH |
2904 | } |
2905 | ||
45eb10fb | 2906 | |
5035fbc1 | 2907 | /* Close FONT_OBJECT that is opened on frame F. */ |
45eb10fb | 2908 | |
5035fbc1 DA |
2909 | static void |
2910 | font_close_object (struct frame *f, Lisp_Object font_object) | |
c2f5bfd6 | 2911 | { |
35027d0c | 2912 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2913 | |
5e634ec9 KH |
2914 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2915 | /* Already closed. */ | |
2916 | return; | |
652b9560 | 2917 | FONT_ADD_LOG ("close", font_object, Qnil); |
78e0b35c | 2918 | font->driver->close (font); |
819e81df | 2919 | #ifdef HAVE_WINDOW_SYSTEM |
5035fbc1 DA |
2920 | eassert (FRAME_DISPLAY_INFO (f)->n_fonts); |
2921 | FRAME_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2922 | #endif |
c2f5bfd6 KH |
2923 | } |
2924 | ||
45eb10fb | 2925 | |
1701724c KH |
2926 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2927 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2928 | |
c2f5bfd6 | 2929 | int |
a10c8269 | 2930 | font_has_char (struct frame *f, Lisp_Object font, int c) |
c2f5bfd6 | 2931 | { |
1b834a8d | 2932 | struct font *fontp; |
c2f5bfd6 | 2933 | |
1b834a8d KH |
2934 | if (FONT_ENTITY_P (font)) |
2935 | { | |
2936 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2937 | struct font_driver_list *driver_list; | |
2938 | ||
2939 | for (driver_list = f->font_driver_list; | |
2940 | driver_list && ! EQ (driver_list->driver->type, type); | |
2941 | driver_list = driver_list->next); | |
2942 | if (! driver_list) | |
2943 | return 0; | |
2944 | if (! driver_list->driver->has_char) | |
2945 | return -1; | |
2946 | return driver_list->driver->has_char (font, c); | |
2947 | } | |
2948 | ||
4e6a86c6 | 2949 | eassert (FONT_OBJECT_P (font)); |
35027d0c | 2950 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2951 | if (fontp->driver->has_char) |
2952 | { | |
35027d0c | 2953 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2954 | |
2955 | if (result >= 0) | |
2956 | return result; | |
2957 | } | |
2958 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2959 | } |
2960 | ||
45eb10fb KH |
2961 | |
2962 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2963 | ||
2f7c71a1 | 2964 | static unsigned |
971de7fb | 2965 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 2966 | { |
35027d0c | 2967 | struct font *font; |
c2f5bfd6 | 2968 | |
4e6a86c6 | 2969 | eassert (FONT_OBJECT_P (font_object)); |
35027d0c | 2970 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2971 | return font->driver->encode_char (font, c); |
2972 | } | |
2973 | ||
45eb10fb KH |
2974 | |
2975 | /* Return the name of FONT_OBJECT. */ | |
2976 | ||
ef18374f | 2977 | Lisp_Object |
971de7fb | 2978 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 2979 | { |
4e6a86c6 | 2980 | eassert (FONT_OBJECT_P (font_object)); |
35027d0c | 2981 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2982 | } |
2983 | ||
45eb10fb | 2984 | |
05802645 CY |
2985 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME |
2986 | could not be parsed by font_parse_name, return Qnil. */ | |
2987 | ||
35027d0c | 2988 | Lisp_Object |
971de7fb | 2989 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 2990 | { |
05802645 | 2991 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 2992 | |
05802645 | 2993 | CHECK_STRING (font_name); |
984e7f30 | 2994 | if (font_parse_name (SSDATA (font_name), SBYTES (font_name), spec) == -1) |
05802645 CY |
2995 | return Qnil; |
2996 | font_put_extra (spec, QCname, font_name); | |
42707278 | 2997 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 2998 | return spec; |
35027d0c KH |
2999 | } |
3000 | ||
45eb10fb | 3001 | |
35027d0c | 3002 | void |
971de7fb | 3003 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
3004 | { |
3005 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 3006 | |
35027d0c KH |
3007 | if (! FONTP (font)) |
3008 | return; | |
42707278 | 3009 | |
483670b5 KH |
3010 | if (! NILP (Ffont_get (font, QCname))) |
3011 | { | |
92470028 | 3012 | font = copy_font_spec (font); |
483670b5 KH |
3013 | font_put_extra (font, QCname, Qnil); |
3014 | } | |
3015 | ||
35027d0c | 3016 | if (NILP (AREF (font, prop)) |
e234927a CY |
3017 | && prop != FONT_FAMILY_INDEX |
3018 | && prop != FONT_FOUNDRY_INDEX | |
3019 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 3020 | && prop != FONT_SIZE_INDEX) |
35027d0c | 3021 | return; |
483670b5 | 3022 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
92470028 | 3023 | font = copy_font_spec (font); |
35027d0c | 3024 | ASET (font, prop, Qnil); |
4007dd1c | 3025 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 3026 | { |
4007dd1c | 3027 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
3028 | { |
3029 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
3030 | /* If we are setting the font family, we must also clear | |
3031 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
3032 | support for some widths. */ | |
3033 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
3034 | } | |
35027d0c | 3035 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3036 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3037 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3038 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3039 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3040 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3041 | } | |
3042 | else if (prop == FONT_SIZE_INDEX) | |
3043 | { | |
3044 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3045 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3046 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3047 | } | |
e234927a CY |
3048 | else if (prop == FONT_WIDTH_INDEX) |
3049 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3050 | attrs[LFACE_FONT_INDEX] = font; |
3051 | } | |
3052 | ||
56dd2d86 EZ |
3053 | /* Select a font from ENTITIES (list of font-entity vectors) that |
3054 | supports C and is the best match for ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
3055 | |
3056 | static Lisp_Object | |
fdb396e2 DA |
3057 | font_select_entity (struct frame *f, Lisp_Object entities, |
3058 | Lisp_Object *attrs, int pixel_size, int c) | |
988a7ddb KH |
3059 | { |
3060 | Lisp_Object font_entity; | |
3061 | Lisp_Object prefer; | |
a864ef14 | 3062 | int i; |
988a7ddb | 3063 | |
72d36834 KH |
3064 | if (NILP (XCDR (entities)) |
3065 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 3066 | { |
72d36834 | 3067 | font_entity = AREF (XCAR (entities), 0); |
a864ef14 | 3068 | if (c < 0 || font_has_char (f, font_entity, c) > 0) |
988a7ddb KH |
3069 | return font_entity; |
3070 | return Qnil; | |
3071 | } | |
3072 | ||
3073 | /* Sort fonts by properties specified in ATTRS. */ | |
3074 | prefer = scratch_font_prefer; | |
3075 | ||
3076 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3077 | ASET (prefer, i, Qnil); | |
3078 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3079 | { | |
3080 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3081 | ||
3082 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3083 | ASET (prefer, i, AREF (face_font, i)); | |
3084 | } | |
3085 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3086 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3087 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3088 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3089 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3090 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3091 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3092 | |
fdb396e2 | 3093 | return font_sort_entities (entities, prefer, f, c); |
988a7ddb KH |
3094 | } |
3095 | ||
56dd2d86 EZ |
3096 | /* Return a font-entity that satisfies SPEC and is the best match for |
3097 | face's font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3098 | character that the entity must support. */ |
c2f5bfd6 KH |
3099 | |
3100 | Lisp_Object | |
a10c8269 | 3101 | font_find_for_lface (struct frame *f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3102 | { |
4007dd1c | 3103 | Lisp_Object work; |
fdb396e2 | 3104 | Lisp_Object entities, val; |
78834453 | 3105 | Lisp_Object foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3106 | int pixel_size; |
72d36834 | 3107 | int i, j, k, l; |
d311d28c | 3108 | USE_SAFE_ALLOCA; |
d0a47776 KH |
3109 | |
3110 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3111 | if (NILP (registry[0])) | |
3112 | { | |
edfda783 | 3113 | registry[0] = DEFAULT_ENCODING; |
d0a47776 | 3114 | registry[1] = Qascii_0; |
9730daca | 3115 | registry[2] = zero_vector; |
d0a47776 KH |
3116 | } |
3117 | else | |
9730daca | 3118 | registry[1] = zero_vector; |
c2f5bfd6 | 3119 | |
4007dd1c | 3120 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3121 | { |
35027d0c | 3122 | struct charset *encoding, *repertory; |
1701724c | 3123 | |
4007dd1c KH |
3124 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3125 | &encoding, &repertory) < 0) | |
35027d0c | 3126 | return Qnil; |
72d36834 KH |
3127 | if (repertory |
3128 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3129 | return Qnil; | |
35027d0c KH |
3130 | else if (c > encoding->max_char) |
3131 | return Qnil; | |
c2f5bfd6 KH |
3132 | } |
3133 | ||
92470028 | 3134 | work = copy_font_spec (spec); |
227f12fa | 3135 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
1d1e1245 | 3136 | pixel_size = font_pixel_size (f, spec); |
dbc05432 | 3137 | if (pixel_size == 0 && INTEGERP (attrs[LFACE_HEIGHT_INDEX])) |
1d1e1245 KH |
3138 | { |
3139 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3140 | ||
42143acd | 3141 | pixel_size = POINT_TO_PIXEL (pt / 10, FRAME_RES_Y (f)); |
8bd722db KH |
3142 | if (pixel_size < 1) |
3143 | pixel_size = 1; | |
1d1e1245 | 3144 | } |
4007dd1c KH |
3145 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3146 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3147 | if (! NILP (foundry[0])) | |
9730daca | 3148 | foundry[1] = zero_vector; |
4007dd1c KH |
3149 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) |
3150 | { | |
071132a9 | 3151 | val = attrs[LFACE_FOUNDRY_INDEX]; |
51b59d79 | 3152 | foundry[0] = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
4007dd1c | 3153 | foundry[1] = Qnil; |
9730daca | 3154 | foundry[2] = zero_vector; |
4007dd1c KH |
3155 | } |
3156 | else | |
9730daca | 3157 | foundry[0] = Qnil, foundry[1] = zero_vector; |
4007dd1c | 3158 | |
22459668 KH |
3159 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3160 | if (! NILP (adstyle[0])) | |
9730daca | 3161 | adstyle[1] = zero_vector; |
22459668 KH |
3162 | else if (FONTP (attrs[LFACE_FONT_INDEX])) |
3163 | { | |
3164 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3165 | ||
3166 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3167 | { | |
3168 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3169 | adstyle[1] = Qnil; | |
9730daca | 3170 | adstyle[2] = zero_vector; |
22459668 KH |
3171 | } |
3172 | else | |
9730daca | 3173 | adstyle[0] = Qnil, adstyle[1] = zero_vector; |
22459668 KH |
3174 | } |
3175 | else | |
9730daca | 3176 | adstyle[0] = Qnil, adstyle[1] = zero_vector; |
22459668 KH |
3177 | |
3178 | ||
4007dd1c KH |
3179 | val = AREF (work, FONT_FAMILY_INDEX); |
3180 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3181 | { |
3182 | val = attrs[LFACE_FAMILY_INDEX]; | |
51b59d79 | 3183 | val = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
071132a9 | 3184 | } |
4007dd1c KH |
3185 | if (NILP (val)) |
3186 | { | |
3187 | family = alloca ((sizeof family[0]) * 2); | |
3188 | family[0] = Qnil; | |
9730daca | 3189 | family[1] = zero_vector; /* terminator. */ |
4007dd1c KH |
3190 | } |
3191 | else | |
3192 | { | |
3193 | Lisp_Object alters | |
b6e64c41 | 3194 | = Fassoc_string (val, Vface_alternative_font_family_alist, Qt); |
4007dd1c KH |
3195 | |
3196 | if (! NILP (alters)) | |
3197 | { | |
d311d28c PE |
3198 | EMACS_INT alterslen = XFASTINT (Flength (alters)); |
3199 | SAFE_ALLOCA_LISP (family, alterslen + 2); | |
4007dd1c KH |
3200 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) |
3201 | family[i] = XCAR (alters); | |
3202 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3203 | family[i++] = Qnil; | |
9730daca | 3204 | family[i] = zero_vector; |
4007dd1c KH |
3205 | } |
3206 | else | |
3207 | { | |
3208 | family = alloca ((sizeof family[0]) * 3); | |
3209 | i = 0; | |
3210 | family[i++] = val; | |
3211 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3212 | family[i++] = Qnil; | |
9730daca | 3213 | family[i] = zero_vector; |
4007dd1c KH |
3214 | } |
3215 | } | |
3216 | ||
d0a47776 | 3217 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3218 | { |
d0a47776 KH |
3219 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3220 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3221 | { |
d0a47776 KH |
3222 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3223 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3224 | { | |
904a2e0e | 3225 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3226 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3227 | { | |
3228 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
fdb396e2 | 3229 | entities = font_list_entities (f, work); |
72d36834 | 3230 | if (! NILP (entities)) |
988a7ddb | 3231 | { |
fdb396e2 | 3232 | val = font_select_entity (f, entities, |
988a7ddb KH |
3233 | attrs, pixel_size, c); |
3234 | if (! NILP (val)) | |
e8374b39 DA |
3235 | { |
3236 | SAFE_FREE (); | |
3237 | return val; | |
3238 | } | |
988a7ddb | 3239 | } |
22459668 | 3240 | } |
d0a47776 | 3241 | } |
4007dd1c | 3242 | } |
4007dd1c | 3243 | } |
d311d28c PE |
3244 | |
3245 | SAFE_FREE (); | |
d0a47776 | 3246 | return Qnil; |
1701724c | 3247 | } |
45eb10fb KH |
3248 | |
3249 | ||
c2f5bfd6 | 3250 | Lisp_Object |
a10c8269 | 3251 | font_open_for_lface (struct frame *f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3252 | { |
9331887d | 3253 | int size; |
c2f5bfd6 | 3254 | |
4007dd1c KH |
3255 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3256 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3257 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
733fd013 KH |
3258 | else |
3259 | { | |
7e70a152 KH |
3260 | if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) |
3261 | size = font_pixel_size (f, spec); | |
50b0cd29 CY |
3262 | else |
3263 | { | |
7e70a152 KH |
3264 | double pt; |
3265 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3266 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3267 | else | |
3268 | { | |
3269 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3270 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3271 | eassert (INTEGERP (height)); | |
3272 | pt = XINT (height); | |
3273 | } | |
733fd013 | 3274 | |
7e70a152 | 3275 | pt /= 10; |
42143acd | 3276 | size = POINT_TO_PIXEL (pt, FRAME_RES_Y (f)); |
ed96cde8 | 3277 | #ifdef HAVE_NS |
7e70a152 KH |
3278 | if (size == 0) |
3279 | { | |
3280 | Lisp_Object ffsize = get_frame_param (f, Qfontsize); | |
42143acd DA |
3281 | size = (NUMBERP (ffsize) |
3282 | ? POINT_TO_PIXEL (XINT (ffsize), FRAME_RES_Y (f)) : 0); | |
7e70a152 | 3283 | } |
ed96cde8 | 3284 | #endif |
7e70a152 KH |
3285 | } |
3286 | size *= font_rescale_ratio (entity); | |
733fd013 | 3287 | } |
7e70a152 | 3288 | |
c2f5bfd6 KH |
3289 | return font_open_entity (f, entity, size); |
3290 | } | |
3291 | ||
45eb10fb | 3292 | |
56dd2d86 EZ |
3293 | /* Find a font that satisfies SPEC and is the best match for |
3294 | face's attributes in ATTRS on FRAME, and return the opened | |
35027d0c | 3295 | font-object. */ |
45eb10fb | 3296 | |
35027d0c | 3297 | Lisp_Object |
a10c8269 | 3298 | font_load_for_lface (struct frame *f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3299 | { |
637fa988 | 3300 | Lisp_Object entity, name; |
ef18374f | 3301 | |
908567ef | 3302 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3303 | if (NILP (entity)) |
ef18374f | 3304 | { |
35027d0c | 3305 | /* No font is listed for SPEC, but each font-backend may have |
56dd2d86 | 3306 | different criteria about "font matching". So, try it. */ |
35027d0c KH |
3307 | entity = font_matching_entity (f, attrs, spec); |
3308 | if (NILP (entity)) | |
3309 | return Qnil; | |
c2f5bfd6 | 3310 | } |
537b04b9 | 3311 | /* Don't lose the original name that was put in initially. We need |
637fa988 JD |
3312 | it to re-apply the font when font parameters (like hinting or dpi) have |
3313 | changed. */ | |
3314 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3315 | if (!NILP (entity)) |
3316 | { | |
42707278 JD |
3317 | name = Ffont_get (spec, QCuser_spec); |
3318 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3319 | } |
637fa988 | 3320 | return entity; |
c2f5bfd6 KH |
3321 | } |
3322 | ||
45eb10fb KH |
3323 | |
3324 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3325 | ||
c2f5bfd6 | 3326 | void |
a10c8269 | 3327 | font_prepare_for_face (struct frame *f, struct face *face) |
c2f5bfd6 | 3328 | { |
35027d0c KH |
3329 | if (face->font->driver->prepare_face) |
3330 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3331 | } |
3332 | ||
45eb10fb KH |
3333 | |
3334 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3335 | ||
c2f5bfd6 | 3336 | void |
a10c8269 | 3337 | font_done_for_face (struct frame *f, struct face *face) |
c2f5bfd6 | 3338 | { |
35027d0c KH |
3339 | if (face->font->driver->done_face) |
3340 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3341 | face->extra = NULL; |
3342 | } | |
3343 | ||
45eb10fb | 3344 | |
56dd2d86 | 3345 | /* Open a font that is a match for font-spec SPEC on frame F. If no proper |
c50b7e98 | 3346 | font is found, return Qnil. */ |
45eb10fb | 3347 | |
c2f5bfd6 | 3348 | Lisp_Object |
a10c8269 | 3349 | font_open_by_spec (struct frame *f, Lisp_Object spec) |
c2f5bfd6 | 3350 | { |
c50b7e98 | 3351 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3352 | |
4007dd1c KH |
3353 | /* We set up the default font-related attributes of a face to prefer |
3354 | a moderate font. */ | |
3355 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3356 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3357 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3358 | #ifndef HAVE_NS |
4007dd1c | 3359 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3360 | #else |
3361 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3362 | #endif | |
4007dd1c KH |
3363 | attrs[LFACE_FONT_INDEX] = Qnil; |
3364 | ||
3365 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3366 | } |
3367 | ||
3368 | ||
56dd2d86 | 3369 | /* Open a font that matches NAME on frame F. If no proper font is |
c50b7e98 KH |
3370 | found, return Qnil. */ |
3371 | ||
3372 | Lisp_Object | |
a10c8269 | 3373 | font_open_by_name (struct frame *f, Lisp_Object name) |
c50b7e98 KH |
3374 | { |
3375 | Lisp_Object args[2]; | |
581e51e8 | 3376 | Lisp_Object spec, ret; |
c50b7e98 KH |
3377 | |
3378 | args[0] = QCname; | |
d7ea76b4 | 3379 | args[1] = name; |
c50b7e98 | 3380 | spec = Ffont_spec (2, args); |
581e51e8 | 3381 | ret = font_open_by_spec (f, spec); |
537b04b9 | 3382 | /* Do not lose name originally put in. */ |
8096a0ff | 3383 | if (!NILP (ret)) |
42707278 | 3384 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3385 | |
3386 | return ret; | |
c50b7e98 KH |
3387 | } |
3388 | ||
3389 | ||
c2f5bfd6 KH |
3390 | /* Register font-driver DRIVER. This function is used in two ways. |
3391 | ||
417a1b10 | 3392 | The first is with frame F non-NULL. In this case, make DRIVER |
56dd2d86 | 3393 | available (but not yet activated) on F. All frame creators |
417a1b10 KH |
3394 | (e.g. Fx_create_frame) must call this function at least once with |
3395 | an available font-driver. | |
c2f5bfd6 KH |
3396 | |
3397 | The second is with frame F NULL. In this case, DRIVER is globally | |
3398 | registered in the variable `font_driver_list'. All font-driver | |
3399 | implementations must call this function in its syms_of_XXXX | |
3400 | (e.g. syms_of_xfont). */ | |
3401 | ||
3402 | void | |
a10c8269 | 3403 | register_font_driver (struct font_driver *driver, struct frame *f) |
c2f5bfd6 KH |
3404 | { |
3405 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3406 | struct font_driver_list *prev, *list; | |
3407 | ||
257b3b03 | 3408 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 3409 | if (f && ! driver->draw) |
43a1d19b | 3410 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 | 3411 | SDATA (SYMBOL_NAME (driver->type))); |
257b3b03 | 3412 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 KH |
3413 | |
3414 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3415 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3416 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3417 | ||
38182d90 | 3418 | list = xmalloc (sizeof *list); |
417a1b10 | 3419 | list->on = 0; |
c2f5bfd6 KH |
3420 | list->driver = driver; |
3421 | list->next = NULL; | |
3422 | if (prev) | |
3423 | prev->next = list; | |
3424 | else if (f) | |
3425 | f->font_driver_list = list; | |
3426 | else | |
3427 | font_driver_list = list; | |
72606e45 KH |
3428 | if (! f) |
3429 | num_font_drivers++; | |
c2f5bfd6 KH |
3430 | } |
3431 | ||
2ed98482 | 3432 | void |
a10c8269 | 3433 | free_font_driver_list (struct frame *f) |
2ed98482 CY |
3434 | { |
3435 | struct font_driver_list *list, *next; | |
3436 | ||
3437 | for (list = f->font_driver_list; list; list = next) | |
3438 | { | |
3439 | next = list->next; | |
3440 | xfree (list); | |
3441 | } | |
3442 | f->font_driver_list = NULL; | |
3443 | } | |
3444 | ||
45eb10fb | 3445 | |
f697fff0 | 3446 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3447 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3448 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3449 | |
ca4da08a KH |
3450 | A caller must free all realized faces if any in advance. The |
3451 | return value is a list of font backends actually made used on | |
3452 | F. */ | |
e950d6f1 KH |
3453 | |
3454 | Lisp_Object | |
a10c8269 | 3455 | font_update_drivers (struct frame *f, Lisp_Object new_drivers) |
417a1b10 KH |
3456 | { |
3457 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
3458 | struct font_driver_list *list; |
3459 | ||
4007dd1c KH |
3460 | /* At first, turn off non-requested drivers, and turn on requested |
3461 | drivers. */ | |
f697fff0 | 3462 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c | 3463 | { |
13a547c6 | 3464 | struct font_driver *driver = list->driver; |
4007dd1c KH |
3465 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) |
3466 | != list->on) | |
3467 | { | |
3468 | if (list->on) | |
3469 | { | |
3470 | if (driver->end_for_frame) | |
3471 | driver->end_for_frame (f); | |
3472 | font_finish_cache (f, driver); | |
3473 | list->on = 0; | |
3474 | } | |
3475 | else | |
3476 | { | |
3477 | if (! driver->start_for_frame | |
3478 | || driver->start_for_frame (f) == 0) | |
3479 | { | |
3480 | font_prepare_cache (f, driver); | |
3481 | list->on = 1; | |
3482 | } | |
3483 | } | |
3484 | } | |
3485 | } | |
3486 | ||
3487 | if (NILP (new_drivers)) | |
3488 | return Qnil; | |
3489 | ||
3490 | if (! EQ (new_drivers, Qt)) | |
3491 | { | |
3492 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3493 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3494 | Lisp_Object tail; |
3495 | int i; | |
3496 | ||
3497 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3498 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3499 | { | |
3500 | for (list = f->font_driver_list; list; list = list->next) | |
3501 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3502 | break; | |
3503 | if (list) | |
3504 | list_table[i++] = list; | |
3505 | } | |
3506 | for (list = f->font_driver_list; list; list = list->next) | |
3507 | if (! list->on) | |
6136b72f | 3508 | list_table[i++] = list; |
4007dd1c KH |
3509 | list_table[i] = NULL; |
3510 | ||
3306c6dc | 3511 | next = &f->font_driver_list; |
4007dd1c KH |
3512 | for (i = 0; list_table[i]; i++) |
3513 | { | |
3306c6dc AS |
3514 | *next = list_table[i]; |
3515 | next = &(*next)->next; | |
4007dd1c | 3516 | } |
3306c6dc | 3517 | *next = NULL; |
ba98e3a0 SM |
3518 | |
3519 | if (! f->font_driver_list->on) | |
3520 | { /* None of the drivers is enabled: enable them all. | |
3521 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3522 | and then use it under w32 or ns. */ | |
3523 | for (list = f->font_driver_list; list; list = list->next) | |
3524 | { | |
3525 | struct font_driver *driver = list->driver; | |
3526 | eassert (! list->on); | |
3527 | if (! driver->start_for_frame | |
3528 | || driver->start_for_frame (f) == 0) | |
3529 | { | |
3530 | font_prepare_cache (f, driver); | |
3531 | list->on = 1; | |
3532 | } | |
3533 | } | |
3534 | } | |
4007dd1c | 3535 | } |
417a1b10 | 3536 | |
4007dd1c KH |
3537 | for (list = f->font_driver_list; list; list = list->next) |
3538 | if (list->on) | |
6c6f1994 | 3539 | active_drivers = nconc2 (active_drivers, list1 (list->driver->type)); |
e950d6f1 | 3540 | return active_drivers; |
417a1b10 KH |
3541 | } |
3542 | ||
f697fff0 | 3543 | int |
a10c8269 | 3544 | font_put_frame_data (struct frame *f, struct font_driver *driver, void *data) |
f697fff0 KH |
3545 | { |
3546 | struct font_data_list *list, *prev; | |
3547 | ||
3548 | for (prev = NULL, list = f->font_data_list; list; | |
3549 | prev = list, list = list->next) | |
3550 | if (list->driver == driver) | |
3551 | break; | |
3552 | if (! data) | |
3553 | { | |
3554 | if (list) | |
3555 | { | |
3556 | if (prev) | |
3557 | prev->next = list->next; | |
3558 | else | |
3559 | f->font_data_list = list->next; | |
973e7849 | 3560 | xfree (list); |
f697fff0 KH |
3561 | } |
3562 | return 0; | |
3563 | } | |
3564 | ||
3565 | if (! list) | |
3566 | { | |
38182d90 | 3567 | list = xmalloc (sizeof *list); |
f697fff0 KH |
3568 | list->driver = driver; |
3569 | list->next = f->font_data_list; | |
3570 | f->font_data_list = list; | |
3571 | } | |
3572 | list->data = data; | |
3573 | return 0; | |
3574 | } | |
3575 | ||
3576 | ||
3577 | void * | |
a10c8269 | 3578 | font_get_frame_data (struct frame *f, struct font_driver *driver) |
f697fff0 KH |
3579 | { |
3580 | struct font_data_list *list; | |
3581 | ||
3582 | for (list = f->font_data_list; list; list = list->next) | |
3583 | if (list->driver == driver) | |
3584 | break; | |
3585 | if (! list) | |
3586 | return NULL; | |
3587 | return list->data; | |
3588 | } | |
3589 | ||
417a1b10 | 3590 | |
9fa82824 DP |
3591 | /* Sets attributes on a font. Any properties that appear in ALIST and |
3592 | BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font. | |
3593 | BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated | |
3594 | arrays of strings. This function is intended for use by the font | |
3595 | drivers to implement their specific font_filter_properties. */ | |
3596 | void | |
220d91b8 JB |
3597 | font_filter_properties (Lisp_Object font, |
3598 | Lisp_Object alist, | |
3106121c YM |
3599 | const char *const boolean_properties[], |
3600 | const char *const non_boolean_properties[]) | |
9fa82824 DP |
3601 | { |
3602 | Lisp_Object it; | |
3603 | int i; | |
3604 | ||
266fee4f | 3605 | /* Set boolean values to Qt or Qnil. */ |
9fa82824 DP |
3606 | for (i = 0; boolean_properties[i] != NULL; ++i) |
3607 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3608 | { | |
3609 | Lisp_Object key = XCAR (XCAR (it)); | |
3610 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3611 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3612 | |
3613 | if (strcmp (boolean_properties[i], keystr) == 0) | |
3614 | { | |
3615 | const char *str = INTEGERP (val) ? (XINT (val) ? "true" : "false") | |
51b59d79 | 3616 | : SYMBOLP (val) ? SSDATA (SYMBOL_NAME (val)) |
9fa82824 DP |
3617 | : "true"; |
3618 | ||
3619 | if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0 | |
3620 | || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0 | |
3621 | || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0 | |
3622 | || strcmp ("Off", str) == 0) | |
3623 | val = Qnil; | |
3624 | else | |
3625 | val = Qt; | |
3626 | ||
3627 | Ffont_put (font, key, val); | |
3628 | } | |
3629 | } | |
3630 | ||
3631 | for (i = 0; non_boolean_properties[i] != NULL; ++i) | |
3632 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3633 | { | |
3634 | Lisp_Object key = XCAR (XCAR (it)); | |
3635 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3636 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3637 | if (strcmp (non_boolean_properties[i], keystr) == 0) |
3638 | Ffont_put (font, key, val); | |
3639 | } | |
3640 | } | |
3641 | ||
3642 | ||
45eb10fb | 3643 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3644 | POS in window W. If STRING is non-nil, it is a string containing C |
3645 | at index POS. If C is negative, get C from the current buffer or | |
3646 | STRING. */ | |
45eb10fb | 3647 | |
2f7c71a1 | 3648 | static Lisp_Object |
d311d28c | 3649 | font_at (int c, ptrdiff_t pos, struct face *face, struct window *w, |
2f7c71a1 | 3650 | Lisp_Object string) |
10d16101 | 3651 | { |
a10c8269 | 3652 | struct frame *f; |
a864ef14 | 3653 | bool multibyte; |
35027d0c | 3654 | Lisp_Object font_object; |
e3ee0340 | 3655 | |
e500c47d | 3656 | multibyte = (NILP (string) |
4b4deea2 | 3657 | ? ! NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e500c47d | 3658 | : STRING_MULTIBYTE (string)); |
e3ee0340 KH |
3659 | if (c < 0) |
3660 | { | |
3661 | if (NILP (string)) | |
3662 | { | |
e3ee0340 KH |
3663 | if (multibyte) |
3664 | { | |
d311d28c | 3665 | ptrdiff_t pos_byte = CHAR_TO_BYTE (pos); |
e3ee0340 KH |
3666 | |
3667 | c = FETCH_CHAR (pos_byte); | |
3668 | } | |
3669 | else | |
3670 | c = FETCH_BYTE (pos); | |
3671 | } | |
3672 | else | |
3673 | { | |
3674 | unsigned char *str; | |
3675 | ||
3676 | multibyte = STRING_MULTIBYTE (string); | |
3677 | if (multibyte) | |
3678 | { | |
d311d28c | 3679 | ptrdiff_t pos_byte = string_char_to_byte (string, pos); |
e3ee0340 KH |
3680 | |
3681 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3682 | c = STRING_CHAR (str); |
e3ee0340 KH |
3683 | } |
3684 | else | |
3685 | c = SDATA (string)[pos]; | |
3686 | } | |
3687 | } | |
10d16101 | 3688 | |
d3d50620 | 3689 | f = XFRAME (w->frame); |
1385a806 KH |
3690 | if (! FRAME_WINDOW_P (f)) |
3691 | return Qnil; | |
10d16101 KH |
3692 | if (! face) |
3693 | { | |
e3ee0340 | 3694 | int face_id; |
d311d28c | 3695 | ptrdiff_t endptr; |
e3ee0340 KH |
3696 | |
3697 | if (STRINGP (string)) | |
3472b6c6 | 3698 | face_id = face_at_string_position (w, string, pos, 0, &endptr, |
10d16101 KH |
3699 | DEFAULT_FACE_ID, 0); |
3700 | else | |
3472b6c6 | 3701 | face_id = face_at_buffer_position (w, pos, &endptr, |
6970f632 | 3702 | pos + 100, 0, -1); |
10d16101 KH |
3703 | face = FACE_FROM_ID (f, face_id); |
3704 | } | |
e3ee0340 KH |
3705 | if (multibyte) |
3706 | { | |
3707 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3708 | face = FACE_FROM_ID (f, face_id); | |
3709 | } | |
35027d0c | 3710 | if (! face->font) |
10d16101 | 3711 | return Qnil; |
35027d0c | 3712 | |
35027d0c KH |
3713 | XSETFONT (font_object, face->font); |
3714 | return font_object; | |
3715 | } | |
3716 | ||
3717 | ||
071132a9 KH |
3718 | #ifdef HAVE_WINDOW_SYSTEM |
3719 | ||
5a655b9f DA |
3720 | /* Check how many characters after character/byte position POS/POS_BYTE |
3721 | (at most to *LIMIT) can be displayed by the same font in the window W. | |
3722 | FACE, if non-NULL, is the face selected for the character at POS. | |
3723 | If STRING is not nil, it is the string to check instead of the current | |
3724 | buffer. In that case, FACE must be not NULL. | |
027a33c0 | 3725 | |
071132a9 KH |
3726 | The return value is the font-object for the character at POS. |
3727 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3728 | |
071132a9 KH |
3729 | It is assured that the current buffer (or STRING) is multibyte. */ |
3730 | ||
3731 | Lisp_Object | |
5a655b9f DA |
3732 | font_range (ptrdiff_t pos, ptrdiff_t pos_byte, ptrdiff_t *limit, |
3733 | struct window *w, struct face *face, Lisp_Object string) | |
35027d0c | 3734 | { |
5a655b9f | 3735 | ptrdiff_t ignore; |
35027d0c | 3736 | int c; |
071132a9 | 3737 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3738 | |
3739 | if (NILP (string)) | |
3740 | { | |
071132a9 KH |
3741 | if (! face) |
3742 | { | |
3743 | int face_id; | |
3744 | ||
3472b6c6 | 3745 | face_id = face_at_buffer_position (w, pos, &ignore, |
6970f632 | 3746 | *limit, 0, -1); |
d3d50620 | 3747 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
071132a9 | 3748 | } |
35027d0c KH |
3749 | } |
3750 | else | |
5a655b9f | 3751 | eassert (face); |
35027d0c | 3752 | |
071132a9 | 3753 | while (pos < *limit) |
35027d0c | 3754 | { |
071132a9 | 3755 | Lisp_Object category; |
35027d0c KH |
3756 | |
3757 | if (NILP (string)) | |
3758 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3759 | else | |
3760 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 | 3761 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
c805dec0 KH |
3762 | if (INTEGERP (category) |
3763 | && (XINT (category) == UNICODE_CATEGORY_Cf | |
3764 | || CHAR_VARIATION_SELECTOR_P (c))) | |
0e5d7800 | 3765 | continue; |
071132a9 | 3766 | if (NILP (font_object)) |
35027d0c | 3767 | { |
071132a9 KH |
3768 | font_object = font_for_char (face, c, pos - 1, string); |
3769 | if (NILP (font_object)) | |
3770 | return Qnil; | |
35027d0c KH |
3771 | continue; |
3772 | } | |
0e5d7800 KH |
3773 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3774 | *limit = pos - 1; | |
35027d0c | 3775 | } |
071132a9 | 3776 | return font_object; |
10d16101 | 3777 | } |
071132a9 | 3778 | #endif |
10d16101 | 3779 | |
c2f5bfd6 | 3780 | \f |
266fee4f | 3781 | /* Lisp API. */ |
c2f5bfd6 | 3782 | |
35027d0c | 3783 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3784 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3785 | Return nil otherwise. |
3786 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3787 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3788 | `font-object'. */) |
5842a27b | 3789 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3790 | { |
35027d0c KH |
3791 | if (NILP (extra_type)) |
3792 | return (FONTP (object) ? Qt : Qnil); | |
3793 | if (EQ (extra_type, Qfont_spec)) | |
3794 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3795 | if (EQ (extra_type, Qfont_entity)) | |
3796 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3797 | if (EQ (extra_type, Qfont_object)) | |
3798 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3799 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3800 | } |
3801 | ||
a7ca3326 | 3802 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, |
45eb10fb KH |
3803 | doc: /* Return a newly created font-spec with arguments as properties. |
3804 | ||
3805 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3806 | valid font property name listed below: | |
3807 | ||
3808 | `:family', `:weight', `:slant', `:width' | |
3809 | ||
3810 | They are the same as face attributes of the same name. See | |
51c01100 | 3811 | `set-face-attribute'. |
45eb10fb KH |
3812 | |
3813 | `:foundry' | |
3814 | ||
3815 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3816 | ||
3817 | `:adstyle' | |
3818 | ||
3819 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3820 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3821 | |
3822 | `:registry' | |
3823 | ||
3824 | VALUE must be a string or a symbol specifying the charset registry and | |
3825 | encoding of a font, e.g. ``iso8859-1''. | |
3826 | ||
3827 | `:size' | |
3828 | ||
3829 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3830 | specifying the font size. It specifies the font size in pixels (if |
3831 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3832 | |
3833 | `:name' | |
3834 | ||
7a18a178 | 3835 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3836 | |
3837 | `:script' | |
3838 | ||
3839 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3840 | support. It may be a symbol representing a subgroup of a script |
3841 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3842 | |
3843 | `:lang' | |
3844 | ||
3845 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3846 | e.g. `ja'. | |
3847 | ||
3848 | `:otf' | |
3849 | ||
3850 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3851 | required OpenType features. | |
3852 | ||
3853 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3854 | LANGSYS-TAG: OpenType language system tag symbol, | |
3855 | or nil for the default language system. | |
3856 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3857 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3858 | ||
3859 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3860 | must not have any of the remaining elements. | |
3861 | ||
3862 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
56dd2d86 | 3863 | be an OpenType font whose GPOS table of `thai' script's default |
c423ecca KH |
3864 | language system must contain `mark' feature. |
3865 | ||
ba3de0e8 | 3866 | usage: (font-spec ARGS...) */) |
f66c7cf8 | 3867 | (ptrdiff_t nargs, Lisp_Object *args) |
c2f5bfd6 | 3868 | { |
35027d0c | 3869 | Lisp_Object spec = font_make_spec (); |
f66c7cf8 | 3870 | ptrdiff_t i; |
c2f5bfd6 KH |
3871 | |
3872 | for (i = 0; i < nargs; i += 2) | |
3873 | { | |
cccd42d5 KH |
3874 | Lisp_Object key = args[i], val; |
3875 | ||
3876 | CHECK_SYMBOL (key); | |
3877 | if (i + 1 >= nargs) | |
3878 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3879 | val = args[i + 1]; | |
c2f5bfd6 | 3880 | |
35027d0c KH |
3881 | if (EQ (key, QCname)) |
3882 | { | |
3883 | CHECK_STRING (val); | |
3c542890 KH |
3884 | if (font_parse_name (SSDATA (val), SBYTES (val), spec) < 0) |
3885 | error ("Invalid font name: %s", SSDATA (val)); | |
35027d0c KH |
3886 | font_put_extra (spec, key, val); |
3887 | } | |
c2f5bfd6 | 3888 | else |
4485a28e | 3889 | { |
35027d0c KH |
3890 | int idx = get_font_prop_index (key); |
3891 | ||
3892 | if (idx >= 0) | |
ec6fe57c | 3893 | { |
35027d0c KH |
3894 | val = font_prop_validate (idx, Qnil, val); |
3895 | if (idx < FONT_EXTRA_INDEX) | |
3896 | ASET (spec, idx, val); | |
3897 | else | |
3898 | font_put_extra (spec, key, val); | |
ec6fe57c | 3899 | } |
35027d0c KH |
3900 | else |
3901 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3902 | } |
e950d6f1 | 3903 | } |
c2f5bfd6 KH |
3904 | return spec; |
3905 | } | |
3906 | ||
92470028 PE |
3907 | /* Return a copy of FONT as a font-spec. */ |
3908 | Lisp_Object | |
3909 | copy_font_spec (Lisp_Object font) | |
35027d0c | 3910 | { |
d26424c5 | 3911 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3912 | int i; |
3913 | ||
3914 | CHECK_FONT (font); | |
3915 | new_spec = font_make_spec (); | |
3916 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3917 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 3918 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
3919 | /* We must remove :font-entity property. */ |
3920 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3921 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3922 | { | |
3923 | if (NILP (prev)) | |
3924 | extra = XCDR (extra); | |
3925 | else | |
3926 | XSETCDR (prev, XCDR (tail)); | |
3927 | break; | |
3928 | } | |
35027d0c KH |
3929 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3930 | return new_spec; | |
3931 | } | |
3932 | ||
92470028 PE |
3933 | /* Merge font-specs FROM and TO, and return a new font-spec. |
3934 | Every specified property in FROM overrides the corresponding | |
3935 | property in TO. */ | |
3936 | Lisp_Object | |
3937 | merge_font_spec (Lisp_Object from, Lisp_Object to) | |
35027d0c KH |
3938 | { |
3939 | Lisp_Object extra, tail; | |
3940 | int i; | |
3941 | ||
3942 | CHECK_FONT (from); | |
3943 | CHECK_FONT (to); | |
92470028 | 3944 | to = copy_font_spec (to); |
35027d0c KH |
3945 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
3946 | ASET (to, i, AREF (from, i)); | |
3947 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3948 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3949 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3950 | { | |
3951 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3952 | ||
3953 | if (! NILP (slot)) | |
3954 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3955 | else | |
3956 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3957 | } | |
3958 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3959 | return to; | |
3960 | } | |
c2f5bfd6 | 3961 | |
a7ca3326 | 3962 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, |
45eb10fb | 3963 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 3964 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 3965 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 3966 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 3967 | :size, :name, :script, :otf |
5bdd4dd2 | 3968 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
3969 | In addition, if FONT is a font-entity or a font-object, values of |
3970 | :script and :otf are different from those of a font-spec as below: | |
3971 | ||
3972 | The value of :script may be a list of scripts that are supported by the font. | |
3973 | ||
3974 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
3975 | representing the OpenType features supported by the font by this form: | |
3976 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3977 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
3978 | Layout tags. */) | |
5842a27b | 3979 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 3980 | { |
35027d0c | 3981 | int idx; |
a7840ffb | 3982 | Lisp_Object val; |
c2f5bfd6 | 3983 | |
35027d0c KH |
3984 | CHECK_FONT (font); |
3985 | CHECK_SYMBOL (key); | |
e80e09b4 | 3986 | |
35027d0c | 3987 | idx = get_font_prop_index (key); |
2babb359 KH |
3988 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3989 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 3990 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 3991 | return AREF (font, idx); |
a7840ffb KH |
3992 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
3993 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
3994 | { | |
3995 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 3996 | |
f6c1c771 KH |
3997 | if (fontp->driver->otf_capability) |
3998 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 3999 | else |
f6c1c771 | 4000 | val = Fcons (Qnil, Qnil); |
a7840ffb KH |
4001 | } |
4002 | else | |
4003 | val = Fcdr (val); | |
4004 | return val; | |
c2f5bfd6 KH |
4005 | } |
4006 | ||
51cf11be AS |
4007 | #ifdef HAVE_WINDOW_SYSTEM |
4008 | ||
b1868a1a CY |
4009 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
4010 | doc: /* Return a plist of face attributes generated by FONT. | |
4011 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
4012 | The return value is a list of the form | |
4013 | ||
6f568955 | 4014 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 4015 | |
48105a6a | 4016 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
4017 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
4018 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 4019 | |
48105a6a JB |
4020 | The optional argument FRAME specifies the frame that the face attributes |
4021 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 4022 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a | 4023 | { |
d9f07150 | 4024 | struct frame *f = decode_live_frame (frame); |
b1868a1a CY |
4025 | Lisp_Object plist[10]; |
4026 | Lisp_Object val; | |
5989ba2f | 4027 | int n = 0; |
b1868a1a | 4028 | |
b1868a1a CY |
4029 | if (STRINGP (font)) |
4030 | { | |
4031 | int fontset = fs_query_fontset (font, 0); | |
4032 | Lisp_Object name = font; | |
4033 | if (fontset >= 0) | |
4034 | font = fontset_ascii (fontset); | |
4035 | font = font_spec_from_name (name); | |
4036 | if (! FONTP (font)) | |
4037 | signal_error ("Invalid font name", name); | |
4038 | } | |
4039 | else if (! FONTP (font)) | |
4040 | signal_error ("Invalid font object", font); | |
4041 | ||
b1868a1a | 4042 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4043 | if (! NILP (val)) |
4044 | { | |
4045 | plist[n++] = QCfamily; | |
4046 | plist[n++] = SYMBOL_NAME (val); | |
4047 | } | |
b1868a1a | 4048 | |
b1868a1a CY |
4049 | val = AREF (font, FONT_SIZE_INDEX); |
4050 | if (INTEGERP (val)) | |
4051 | { | |
4052 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
42143acd | 4053 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : FRAME_RES_Y (f); |
5989ba2f | 4054 | plist[n++] = QCheight; |
c3bb5465 | 4055 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4056 | } |
4057 | else if (FLOATP (val)) | |
5989ba2f CY |
4058 | { |
4059 | plist[n++] = QCheight; | |
4060 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4061 | } | |
b1868a1a | 4062 | |
b1868a1a | 4063 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4064 | if (! NILP (val)) |
4065 | { | |
4066 | plist[n++] = QCweight; | |
4067 | plist[n++] = val; | |
4068 | } | |
b1868a1a | 4069 | |
b1868a1a | 4070 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4071 | if (! NILP (val)) |
4072 | { | |
4073 | plist[n++] = QCslant; | |
4074 | plist[n++] = val; | |
4075 | } | |
b1868a1a | 4076 | |
b1868a1a | 4077 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4078 | if (! NILP (val)) |
4079 | { | |
4080 | plist[n++] = QCwidth; | |
4081 | plist[n++] = val; | |
4082 | } | |
b1868a1a | 4083 | |
5989ba2f | 4084 | return Flist (n, plist); |
b1868a1a | 4085 | } |
c2f5bfd6 | 4086 | |
51cf11be AS |
4087 | #endif |
4088 | ||
a7ca3326 | 4089 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4090 | doc: /* Set one property of FONT: give property KEY value VAL. |
4091 | FONT is a font-spec, a font-entity, or a font-object. | |
4092 | ||
4093 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4094 | accepted by the function `font-spec' (which see), VAL must be what | |
4095 | allowed in `font-spec'. | |
4096 | ||
4097 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4098 | accepted by `font-spec'. */) | |
e1ffae3b | 4099 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4100 | { |
35027d0c | 4101 | int idx; |
c2f5bfd6 | 4102 | |
35027d0c KH |
4103 | idx = get_font_prop_index (prop); |
4104 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4105 | { |
4106 | CHECK_FONT_SPEC (font); | |
4107 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4108 | } | |
c2f5bfd6 | 4109 | else |
a7840ffb KH |
4110 | { |
4111 | if (EQ (prop, QCname) | |
4112 | || EQ (prop, QCscript) | |
4113 | || EQ (prop, QClang) | |
4114 | || EQ (prop, QCotf)) | |
4115 | CHECK_FONT_SPEC (font); | |
4116 | else | |
4117 | CHECK_FONT (font); | |
4118 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4119 | } | |
c2f5bfd6 KH |
4120 | return val; |
4121 | } | |
4122 | ||
a7ca3326 | 4123 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, |
c2f5bfd6 KH |
4124 | doc: /* List available fonts matching FONT-SPEC on the current frame. |
4125 | Optional 2nd argument FRAME specifies the target frame. | |
4126 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4127 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4128 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4129 | how close they are to PREFER. */) |
5842a27b | 4130 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4131 | { |
fdb396e2 | 4132 | struct frame *f = decode_live_frame (frame); |
72d36834 | 4133 | Lisp_Object vec, list; |
d311d28c | 4134 | EMACS_INT n = 0; |
c2f5bfd6 | 4135 | |
35027d0c | 4136 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4137 | if (! NILP (num)) |
4138 | { | |
4139 | CHECK_NUMBER (num); | |
4140 | n = XINT (num); | |
4141 | if (n <= 0) | |
4142 | return Qnil; | |
4143 | } | |
4144 | if (! NILP (prefer)) | |
35027d0c | 4145 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4146 | |
fdb396e2 | 4147 | list = font_list_entities (f, font_spec); |
72d36834 | 4148 | if (NILP (list)) |
c2f5bfd6 | 4149 | return Qnil; |
72d36834 KH |
4150 | if (NILP (XCDR (list)) |
4151 | && ASIZE (XCAR (list)) == 1) | |
6c6f1994 | 4152 | return list1 (AREF (XCAR (list), 0)); |
c2f5bfd6 KH |
4153 | |
4154 | if (! NILP (prefer)) | |
fdb396e2 | 4155 | vec = font_sort_entities (list, prefer, f, 0); |
72d36834 KH |
4156 | else |
4157 | vec = font_vconcat_entity_vectors (list); | |
4158 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4159 | { |
72d36834 | 4160 | Lisp_Object args[2]; |
c2f5bfd6 | 4161 | |
72d36834 KH |
4162 | args[0] = vec; |
4163 | args[1] = Qnil; | |
4164 | list = Fappend (2, args); | |
4165 | } | |
4166 | else | |
4167 | { | |
4168 | for (list = Qnil, n--; n >= 0; n--) | |
4169 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4170 | } |
4171 | return list; | |
4172 | } | |
4173 | ||
35027d0c | 4174 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4175 | doc: /* List available font families on the current frame. |
d9f07150 | 4176 | If FRAME is omitted or nil, the selected frame is used. */) |
5842a27b | 4177 | (Lisp_Object frame) |
c2f5bfd6 | 4178 | { |
d9f07150 | 4179 | struct frame *f = decode_live_frame (frame); |
c2f5bfd6 | 4180 | struct font_driver_list *driver_list; |
d9f07150 DA |
4181 | Lisp_Object list = Qnil; |
4182 | ||
c2f5bfd6 KH |
4183 | for (driver_list = f->font_driver_list; driver_list; |
4184 | driver_list = driver_list->next) | |
4185 | if (driver_list->driver->list_family) | |
4186 | { | |
fdb396e2 | 4187 | Lisp_Object val = driver_list->driver->list_family (f); |
13bf758b | 4188 | Lisp_Object tail = list; |
c2f5bfd6 | 4189 | |
13bf758b CY |
4190 | for (; CONSP (val); val = XCDR (val)) |
4191 | if (NILP (Fmemq (XCAR (val), tail)) | |
4192 | && SYMBOLP (XCAR (val))) | |
4193 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4194 | } |
4195 | return list; | |
4196 | } | |
4197 | ||
4198 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4199 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4200 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4201 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4202 | { |
4203 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4204 | ||
4205 | if (CONSP (val)) | |
4206 | val = XCAR (val); | |
4207 | return val; | |
4208 | } | |
4209 | ||
a7ca3326 | 4210 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4211 | doc: /* Return XLFD name of FONT. |
4212 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4213 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4214 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
56dd2d86 | 4215 | the consecutive wildcards are folded into one. */) |
5842a27b | 4216 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4217 | { |
4218 | char name[256]; | |
cb1caeaf | 4219 | int namelen, pixel_size = 0; |
c2f5bfd6 | 4220 | |
35027d0c KH |
4221 | CHECK_FONT (font); |
4222 | ||
4223 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4224 | { |
35027d0c | 4225 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4226 | |
35027d0c KH |
4227 | if (STRINGP (font_name) |
4228 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4229 | { |
4230 | if (NILP (fold_wildcards)) | |
4231 | return font_name; | |
51b59d79 | 4232 | strcpy (name, SSDATA (font_name)); |
cb1caeaf | 4233 | namelen = SBYTES (font_name); |
d0ab1ebe KH |
4234 | goto done; |
4235 | } | |
35027d0c | 4236 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4237 | } |
cb1caeaf DA |
4238 | namelen = font_unparse_xlfd (font, pixel_size, name, 256); |
4239 | if (namelen < 0) | |
c2f5bfd6 | 4240 | return Qnil; |
d0ab1ebe KH |
4241 | done: |
4242 | if (! NILP (fold_wildcards)) | |
4243 | { | |
4244 | char *p0 = name, *p1; | |
4245 | ||
4246 | while ((p1 = strstr (p0, "-*-*"))) | |
4247 | { | |
4248 | strcpy (p1, p1 + 2); | |
cb1caeaf | 4249 | namelen -= 2; |
d0ab1ebe KH |
4250 | p0 = p1; |
4251 | } | |
4252 | } | |
4253 | ||
cb1caeaf | 4254 | return make_string (name, namelen); |
c2f5bfd6 KH |
4255 | } |
4256 | ||
a45543bc DA |
4257 | void |
4258 | clear_font_cache (struct frame *f) | |
4259 | { | |
4260 | struct font_driver_list *driver_list = f->font_driver_list; | |
4261 | ||
4262 | for (; driver_list; driver_list = driver_list->next) | |
4263 | if (driver_list->on) | |
4264 | { | |
4265 | Lisp_Object val, tmp, cache = driver_list->driver->get_cache (f); | |
4266 | ||
4267 | val = XCDR (cache); | |
4268 | while (! NILP (val) | |
4269 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
4270 | val = XCDR (val); | |
4271 | eassert (! NILP (val)); | |
4272 | tmp = XCDR (XCAR (val)); | |
4273 | if (XINT (XCAR (tmp)) == 0) | |
4274 | { | |
4275 | font_clear_cache (f, XCAR (val), driver_list->driver); | |
4276 | XSETCDR (cache, XCDR (val)); | |
4277 | } | |
4278 | } | |
4279 | } | |
4280 | ||
c2f5bfd6 | 4281 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, |
a45543bc | 4282 | doc: /* Clear font cache of each frame. */) |
5842a27b | 4283 | (void) |
c2f5bfd6 KH |
4284 | { |
4285 | Lisp_Object list, frame; | |
4286 | ||
4287 | FOR_EACH_FRAME (list, frame) | |
a45543bc | 4288 | clear_font_cache (XFRAME (frame)); |
c2f5bfd6 KH |
4289 | |
4290 | return Qnil; | |
4291 | } | |
4292 | ||
071132a9 KH |
4293 | \f |
4294 | void | |
971de7fb | 4295 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4296 | { |
071132a9 | 4297 | struct font *font = XFONT_OBJECT (font_object); |
d311d28c | 4298 | unsigned code = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); |
071132a9 | 4299 | struct font_metrics metrics; |
c2f5bfd6 | 4300 | |
d311d28c | 4301 | LGLYPH_SET_CODE (glyph, code); |
071132a9 KH |
4302 | font->driver->text_extents (font, &code, 1, &metrics); |
4303 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4304 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4305 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4306 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4307 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4308 | } |
4309 | ||
c2f5bfd6 | 4310 | |
071132a9 KH |
4311 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4312 | doc: /* Shape the glyph-string GSTRING. | |
4313 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4314 | to get the correct visual image of character sequences set in the | |
4315 | header of the glyph-string. | |
1701724c | 4316 | |
071132a9 | 4317 | If the shaping was successful, the value is GSTRING itself or a newly |
ea964864 KH |
4318 | created glyph-string. Otherwise, the value is nil. |
4319 | ||
4320 | See the documentation of `composition-get-gstring' for the format of | |
4321 | GSTRING. */) | |
5842a27b | 4322 | (Lisp_Object gstring) |
1701724c KH |
4323 | { |
4324 | struct font *font; | |
071132a9 | 4325 | Lisp_Object font_object, n, glyph; |
634b8cac | 4326 | ptrdiff_t i, from, to; |
ba3de0e8 | 4327 | |
071132a9 KH |
4328 | if (! composition_gstring_p (gstring)) |
4329 | signal_error ("Invalid glyph-string: ", gstring); | |
4330 | if (! NILP (LGSTRING_ID (gstring))) | |
4331 | return gstring; | |
4332 | font_object = LGSTRING_FONT (gstring); | |
4333 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4334 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4335 | if (! font->driver->shape) |
4336 | return Qnil; | |
4337 | ||
40fb53d6 KH |
4338 | /* Try at most three times with larger gstring each time. */ |
4339 | for (i = 0; i < 3; i++) | |
4340 | { | |
40fb53d6 KH |
4341 | n = font->driver->shape (gstring); |
4342 | if (INTEGERP (n)) | |
4343 | break; | |
071132a9 | 4344 | gstring = larger_vector (gstring, |
d311d28c | 4345 | LGSTRING_GLYPH_LEN (gstring), -1); |
40fb53d6 | 4346 | } |
071132a9 | 4347 | if (i == 3 || XINT (n) == 0) |
1701724c | 4348 | return Qnil; |
dfe3c90f KH |
4349 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4350 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4351 | |
ea964864 | 4352 | /* Check FROM_IDX and TO_IDX of each GLYPH in GSTRING to assure that |
85a43e2e KH |
4353 | GLYPHS covers all characters (except for the last few ones) in |
4354 | GSTRING. More formally, provided that NCHARS is the number of | |
4355 | characters in GSTRING and GLYPHS[i] is the ith glyph, FROM_IDX | |
4356 | and TO_IDX of each glyph must satisfy these conditions: | |
ea964864 KH |
4357 | |
4358 | GLYPHS[0].FROM_IDX == 0 | |
4359 | GLYPHS[i].FROM_IDX <= GLYPHS[i].TO_IDX | |
4360 | if (GLYPHS[i].FROM_IDX == GLYPHS[i-1].FROM_IDX) | |
4361 | ;; GLYPHS[i] and GLYPHS[i-1] belongs to the same grapheme cluster | |
4362 | GLYPHS[i].TO_IDX == GLYPHS[i-1].TO_IDX | |
4363 | else | |
4364 | ;; Be sure to cover all characters. | |
85a43e2e | 4365 | GLYPHS[i].FROM_IDX == GLYPHS[i-1].TO_IDX + 1 */ |
071132a9 | 4366 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4367 | from = LGLYPH_FROM (glyph); |
4368 | to = LGLYPH_TO (glyph); | |
ea964864 KH |
4369 | if (from != 0 || to < from) |
4370 | goto shaper_error; | |
4371 | for (i = 1; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 | 4372 | { |
ea964864 KH |
4373 | glyph = LGSTRING_GLYPH (gstring, i); |
4374 | if (NILP (glyph)) | |
071132a9 | 4375 | break; |
ea964864 KH |
4376 | if (! (LGLYPH_FROM (glyph) <= LGLYPH_TO (glyph) |
4377 | && (LGLYPH_FROM (glyph) == from | |
4378 | ? LGLYPH_TO (glyph) == to | |
4379 | : LGLYPH_FROM (glyph) == to + 1))) | |
4380 | goto shaper_error; | |
4381 | from = LGLYPH_FROM (glyph); | |
4382 | to = LGLYPH_TO (glyph); | |
10d16101 | 4383 | } |
071132a9 | 4384 | return composition_gstring_put_cache (gstring, XINT (n)); |
ea964864 KH |
4385 | |
4386 | shaper_error: | |
4387 | return Qnil; | |
c2f5bfd6 KH |
4388 | } |
4389 | ||
78a2f9cd KH |
4390 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4391 | 2, 2, 0, | |
4392 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4393 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4394 | where | |
c0943d3d | 4395 | VARIATION-SELECTOR is a character code of variation selection |
78a2f9cd KH |
4396 | (#xFE00..#xFE0F or #xE0100..#xE01EF) |
4397 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4398 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4399 | { |
4400 | unsigned variations[256]; | |
4401 | struct font *font; | |
4402 | int i, n; | |
4403 | Lisp_Object val; | |
4404 | ||
4405 | CHECK_FONT_OBJECT (font_object); | |
4406 | CHECK_CHARACTER (character); | |
4407 | font = XFONT_OBJECT (font_object); | |
4408 | if (! font->driver->get_variation_glyphs) | |
4409 | return Qnil; | |
4410 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4411 | if (! n) | |
4412 | return Qnil; | |
4413 | val = Qnil; | |
4414 | for (i = 0; i < 255; i++) | |
4415 | if (variations[i]) | |
4416 | { | |
78a2f9cd | 4417 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); |
be44ca6c | 4418 | Lisp_Object code = INTEGER_TO_CONS (variations[i]); |
78a2f9cd KH |
4419 | val = Fcons (Fcons (make_number (vs), code), val); |
4420 | } | |
4421 | return val; | |
4422 | } | |
4423 | ||
6a3dadd2 KH |
4424 | #if 0 |
4425 | ||
a7ca3326 | 4426 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
733fd013 | 4427 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. |
51c01100 | 4428 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4429 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4430 | where |
4431 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4432 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4433 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 | 4434 | |
06827ec8 | 4435 | If LANGSYS is nil, the default langsys is selected. |
e80e09b4 | 4436 | |
51c01100 JB |
4437 | The features are applied in the order they appear in the list. The |
4438 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4439 | list, and the remaining features are ignored. For instance, (vatu |
4440 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4441 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4442 | |
4443 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4444 | the glyph-string GSTRING-IN. |
e80e09b4 | 4445 | |
51c01100 | 4446 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4447 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4448 | this case, the value is the number of produced glyphs. | |
4449 | ||
4450 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4451 | the value is 0. | |
4452 | ||
51c01100 | 4453 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4454 | produced in GSTRING-OUT, and the value is nil. |
4455 | ||
56dd2d86 | 4456 | See the documentation of `composition-get-gstring' for the format of |
e80e09b4 | 4457 | glyph-string. */) |
5842a27b | 4458 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4459 | { |
4460 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4461 | Lisp_Object val; |
4462 | struct font *font; | |
e80e09b4 KH |
4463 | int len, num; |
4464 | ||
733fd013 | 4465 | check_otf_features (otf_features); |
35027d0c KH |
4466 | CHECK_FONT_OBJECT (font_object); |
4467 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4468 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4469 | error ("Font backend %s can't drive OpenType GSUB table", |
4470 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4471 | CHECK_CONS (otf_features); |
4472 | CHECK_SYMBOL (XCAR (otf_features)); | |
4473 | val = XCDR (otf_features); | |
4474 | CHECK_SYMBOL (XCAR (val)); | |
4475 | val = XCDR (otf_features); | |
4476 | if (! NILP (val)) | |
4477 | CHECK_CONS (val); | |
e80e09b4 KH |
4478 | len = check_gstring (gstring_in); |
4479 | CHECK_VECTOR (gstring_out); | |
4480 | CHECK_NATNUM (from); | |
4481 | CHECK_NATNUM (to); | |
4482 | CHECK_NATNUM (index); | |
4483 | ||
4484 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4485 | args_out_of_range_3 (from, to, make_number (len)); | |
4486 | if (XINT (index) >= ASIZE (gstring_out)) | |
4487 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4488 | num = font->driver->otf_drive (font, otf_features, |
4489 | gstring_in, XINT (from), XINT (to), | |
4490 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4491 | if (num < 0) |
4492 | return Qnil; | |
4493 | return make_number (num); | |
4494 | } | |
4495 | ||
a7ca3326 | 4496 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
e80e09b4 KH |
4497 | 3, 3, 0, |
4498 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4499 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4500 | in this format: |
4501 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4502 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4503 | |
4504 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4505 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4506 | character code corresponding to the glyph or nil if there's no | |
4507 | corresponding character. */) | |
5842a27b | 4508 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4509 | { |
4510 | struct font *font; | |
4511 | Lisp_Object gstring_in, gstring_out, g; | |
4512 | Lisp_Object alternates; | |
4513 | int i, num; | |
4514 | ||
4515 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4516 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4517 | error ("Font backend %s can't drive OpenType GSUB table", |
4518 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4519 | CHECK_CHARACTER (character); |
733fd013 | 4520 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4521 | |
4522 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4523 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4524 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4525 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4526 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4527 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4528 | gstring_out = Ffont_make_gstring (font_object, |
4529 | make_number (ASIZE (gstring_out) * 2)); | |
4530 | alternates = Qnil; | |
4531 | for (i = 0; i < num; i++) | |
4532 | { | |
4533 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4534 | int c = LGLYPH_CHAR (g); |
4535 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4536 | |
4537 | alternates = Fcons (Fcons (make_number (code), | |
4538 | c > 0 ? make_number (c) : Qnil), | |
4539 | alternates); | |
4540 | } | |
4541 | return Fnreverse (alternates); | |
4542 | } | |
6a3dadd2 | 4543 | #endif /* 0 */ |
c2f5bfd6 KH |
4544 | |
4545 | #ifdef FONT_DEBUG | |
4546 | ||
4547 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4548 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4549 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 | 4550 | { |
d311d28c | 4551 | EMACS_INT isize; |
d9f07150 | 4552 | struct frame *f = decode_live_frame (frame); |
c2f5bfd6 KH |
4553 | |
4554 | CHECK_FONT_ENTITY (font_entity); | |
51c01100 | 4555 | |
35027d0c KH |
4556 | if (NILP (size)) |
4557 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4558 | else | |
4559 | { | |
4560 | CHECK_NUMBER_OR_FLOAT (size); | |
4561 | if (FLOATP (size)) | |
42143acd | 4562 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), FRAME_RES_Y (f)); |
35027d0c KH |
4563 | else |
4564 | isize = XINT (size); | |
d311d28c PE |
4565 | if (! (INT_MIN <= isize && isize <= INT_MAX)) |
4566 | args_out_of_range (font_entity, size); | |
35027d0c KH |
4567 | if (isize == 0) |
4568 | isize = 120; | |
4569 | } | |
d9f07150 | 4570 | return font_open_entity (f, font_entity, isize); |
c2f5bfd6 KH |
4571 | } |
4572 | ||
4573 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
5035fbc1 | 4574 | doc: /* Close FONT-OBJECT. */) |
5842a27b | 4575 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4576 | { |
4577 | CHECK_FONT_OBJECT (font_object); | |
5035fbc1 | 4578 | font_close_object (decode_live_frame (frame), font_object); |
c2f5bfd6 KH |
4579 | return Qnil; |
4580 | } | |
4581 | ||
4582 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4583 | doc: /* Return information about FONT-OBJECT. |
4584 | The value is a vector: | |
4585 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4586 | CAPABILITY ] |
e80e09b4 | 4587 | |
56dd2d86 | 4588 | NAME is the font name, a string (or nil if the font backend doesn't |
e80e09b4 KH |
4589 | provide a name). |
4590 | ||
56dd2d86 | 4591 | FILENAME is the font file name, a string (or nil if the font backend |
e80e09b4 KH |
4592 | doesn't provide a file name). |
4593 | ||
4594 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4595 | ||
027a33c0 | 4596 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4597 | |
4598 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4599 | pixels. |
e80e09b4 | 4600 | |
e0708580 KH |
4601 | CAPABILITY is a list whose first element is a symbol representing the |
4602 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4603 | remaining elements describe the details of the font capability. |
e0708580 KH |
4604 | |
4605 | If the font is OpenType font, the form of the list is | |
4606 | \(opentype GSUB GPOS) | |
4607 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4608 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4609 | lists of the format: | |
4610 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4611 | ||
4612 | If the font is not OpenType font, currently the length of the form is | |
4613 | one. | |
e80e09b4 KH |
4614 | |
4615 | SCRIPT is a symbol representing OpenType script tag. | |
4616 | ||
4617 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4618 | representing the default langsys. | |
4619 | ||
51c01100 | 4620 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4621 | |
51c01100 | 4622 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4623 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4624 | { |
4625 | struct font *font; | |
4626 | Lisp_Object val; | |
4627 | ||
4628 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4629 | ||
25721f5b | 4630 | val = make_uninit_vector (9); |
35027d0c KH |
4631 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4632 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4633 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4634 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4635 | ASET (val, 4, make_number (font->ascent)); |
4636 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4637 | ASET (val, 6, make_number (font->space_width)); |
4638 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4639 | if (font->driver->otf_capability) |
e0708580 | 4640 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
25721f5b DA |
4641 | else |
4642 | ASET (val, 8, Qnil); | |
c2f5bfd6 KH |
4643 | return val; |
4644 | } | |
4645 | ||
a7840ffb KH |
4646 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4647 | doc: | |
4648 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4649 | FROM and TO are positions (integers or markers) specifying a region | |
4650 | of the current buffer. | |
4651 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4652 | vector containing the target characters. | |
4653 | ||
4654 | Each element is a vector containing information of a glyph in this format: | |
4655 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4656 | where | |
4657 | FROM is an index numbers of a character the glyph corresponds to. | |
4658 | TO is the same as FROM. | |
4659 | C is the character of the glyph. | |
4660 | CODE is the glyph-code of C in FONT-OBJECT. | |
4661 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4662 | ADJUSTMENT is always nil. | |
4663 | If FONT-OBJECT doesn't have a glyph for a character, | |
4664 | the corresponding element is nil. */) | |
e1ffae3b KH |
4665 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4666 | Lisp_Object object) | |
c2f5bfd6 KH |
4667 | { |
4668 | struct font *font; | |
d311d28c | 4669 | ptrdiff_t i, len; |
a7840ffb KH |
4670 | Lisp_Object *chars, vec; |
4671 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4672 | |
4673 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4674 | if (NILP (object)) |
4675 | { | |
d311d28c | 4676 | ptrdiff_t charpos, bytepos; |
a7840ffb KH |
4677 | |
4678 | validate_region (&from, &to); | |
4679 | if (EQ (from, to)) | |
4680 | return Qnil; | |
4681 | len = XFASTINT (to) - XFASTINT (from); | |
4682 | SAFE_ALLOCA_LISP (chars, len); | |
4683 | charpos = XFASTINT (from); | |
4684 | bytepos = CHAR_TO_BYTE (charpos); | |
4685 | for (i = 0; charpos < XFASTINT (to); i++) | |
4686 | { | |
13a547c6 | 4687 | int c; |
a7840ffb KH |
4688 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); |
4689 | chars[i] = make_number (c); | |
4690 | } | |
4691 | } | |
4692 | else if (STRINGP (object)) | |
4693 | { | |
4694 | const unsigned char *p; | |
4695 | ||
4696 | CHECK_NUMBER (from); | |
4697 | CHECK_NUMBER (to); | |
4698 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4699 | || XINT (to) > SCHARS (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 | SAFE_ALLOCA_LISP (chars, len); | |
4705 | p = SDATA (object); | |
4706 | if (STRING_MULTIBYTE (object)) | |
4707 | for (i = 0; i < len; i++) | |
4708 | { | |
13a547c6 | 4709 | int c = STRING_CHAR_ADVANCE (p); |
a7840ffb KH |
4710 | chars[i] = make_number (c); |
4711 | } | |
4712 | else | |
4713 | for (i = 0; i < len; i++) | |
4714 | chars[i] = make_number (p[i]); | |
4715 | } | |
4716 | else | |
4717 | { | |
4718 | CHECK_VECTOR (object); | |
4719 | CHECK_NUMBER (from); | |
4720 | CHECK_NUMBER (to); | |
4721 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4722 | || XINT (to) > ASIZE (object)) | |
4723 | args_out_of_range_3 (object, from, to); | |
4724 | if (EQ (from, to)) | |
4725 | return Qnil; | |
4726 | len = XFASTINT (to) - XFASTINT (from); | |
4727 | for (i = 0; i < len; i++) | |
4728 | { | |
4729 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4730 | CHECK_CHARACTER (elt); | |
4731 | } | |
4939150c | 4732 | chars = aref_addr (object, XFASTINT (from)); |
a7840ffb KH |
4733 | } |
4734 | ||
3bfc46eb | 4735 | vec = make_uninit_vector (len); |
c2f5bfd6 KH |
4736 | for (i = 0; i < len; i++) |
4737 | { | |
a7840ffb KH |
4738 | Lisp_Object g; |
4739 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 KH |
4740 | unsigned code; |
4741 | struct font_metrics metrics; | |
4742 | ||
78834453 | 4743 | code = font->driver->encode_char (font, c); |
c2f5bfd6 | 4744 | if (code == FONT_INVALID_CODE) |
3bfc46eb DA |
4745 | { |
4746 | ASET (vec, i, Qnil); | |
4747 | continue; | |
4748 | } | |
42926ec8 | 4749 | g = LGLYPH_NEW (); |
a7840ffb KH |
4750 | LGLYPH_SET_FROM (g, i); |
4751 | LGLYPH_SET_TO (g, i); | |
4752 | LGLYPH_SET_CHAR (g, c); | |
4753 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4754 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4755 | LGLYPH_SET_WIDTH (g, metrics.width); |
4756 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4757 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4758 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4759 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4760 | ASET (vec, i, g); | |
4761 | } | |
4762 | if (! VECTORP (object)) | |
4763 | SAFE_FREE (); | |
c2f5bfd6 KH |
4764 | return vec; |
4765 | } | |
4766 | ||
ec6fe57c | 4767 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4768 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4769 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4770 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4771 | { |
4772 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4773 | CHECK_FONT (font); |
ec6fe57c KH |
4774 | |
4775 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4776 | } | |
4777 | ||
1701724c | 4778 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4779 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 | 4780 | Optional second arg WINDOW, if non-nil, is a window displaying |
aee5b18e KH |
4781 | the current buffer. It defaults to the currently selected window. |
4782 | Optional third arg STRING, if non-nil, is a string containing the target | |
4783 | character at index specified by POSITION. */) | |
5842a27b | 4784 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 | 4785 | { |
b9e9df47 | 4786 | struct window *w = decode_live_window (window); |
10d16101 | 4787 | |
1701724c KH |
4788 | if (NILP (string)) |
4789 | { | |
e74aeda8 | 4790 | if (XBUFFER (w->contents) != current_buffer) |
e41fe0d3 | 4791 | error ("Specified window is not displaying the current buffer"); |
1701724c | 4792 | CHECK_NUMBER_COERCE_MARKER (position); |
d311d28c | 4793 | if (! (BEGV <= XINT (position) && XINT (position) < ZV)) |
1701724c | 4794 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); |
1701724c KH |
4795 | } |
4796 | else | |
4797 | { | |
1701724c KH |
4798 | CHECK_NUMBER (position); |
4799 | CHECK_STRING (string); | |
a0d7415f | 4800 | if (! (0 <= XINT (position) && XINT (position) < SCHARS (string))) |
1701724c | 4801 | args_out_of_range (string, position); |
1701724c | 4802 | } |
10d16101 | 4803 | |
b6a9e8b1 | 4804 | return font_at (-1, XINT (position), NULL, w, string); |
10d16101 KH |
4805 | } |
4806 | ||
c2f5bfd6 KH |
4807 | #if 0 |
4808 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4809 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4810 | The value is a number of glyphs drawn. | |
4811 | Type C-l to recover what previously shown. */) | |
5842a27b | 4812 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4813 | { |
4814 | Lisp_Object frame = selected_frame; | |
a10c8269 | 4815 | struct frame *f = XFRAME (frame); |
c2f5bfd6 KH |
4816 | struct font *font; |
4817 | struct face *face; | |
4818 | int i, len, width; | |
4819 | unsigned *code; | |
4820 | ||
4821 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4822 | CHECK_STRING (string); | |
4823 | len = SCHARS (string); | |
4824 | code = alloca (sizeof (unsigned) * len); | |
4825 | for (i = 0; i < len; i++) | |
4826 | { | |
4827 | Lisp_Object ch = Faref (string, make_number (i)); | |
4828 | Lisp_Object val; | |
4829 | int c = XINT (ch); | |
4830 | ||
4831 | code[i] = font->driver->encode_char (font, c); | |
4832 | if (code[i] == FONT_INVALID_CODE) | |
4833 | break; | |
4834 | } | |
4835 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4836 | face->fontp = font; | |
4837 | if (font->driver->prepare_face) | |
4838 | font->driver->prepare_face (f, face); | |
4839 | width = font->driver->text_extents (font, code, i, NULL); | |
4840 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4841 | if (font->driver->done_face) | |
4842 | font->driver->done_face (f, face); | |
4843 | face->fontp = NULL; | |
4844 | return make_number (len); | |
4845 | } | |
4846 | #endif | |
4847 | ||
8c1c7611 DA |
4848 | DEFUN ("frame-font-cache", Fframe_font_cache, Sframe_font_cache, 0, 1, 0, |
4849 | doc: /* Return FRAME's font cache. Mainly used for debugging. | |
4850 | If FRAME is omitted or nil, use the selected frame. */) | |
4851 | (Lisp_Object frame) | |
4852 | { | |
757c70af EZ |
4853 | #ifdef HAVE_WINDOW_SYSTEM |
4854 | struct frame *f = decode_live_frame (frame); | |
4855 | ||
4856 | if (FRAME_WINDOW_P (f)) | |
4857 | return FRAME_DISPLAY_INFO (f)->name_list_element; | |
4858 | else | |
4859 | #endif | |
4860 | return Qnil; | |
8c1c7611 DA |
4861 | } |
4862 | ||
c2f5bfd6 KH |
4863 | #endif /* FONT_DEBUG */ |
4864 | ||
a266686a KH |
4865 | #ifdef HAVE_WINDOW_SYSTEM |
4866 | ||
72606e45 KH |
4867 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4868 | doc: /* Return information about a font named NAME on frame FRAME. | |
4869 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4870 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4871 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4872 | where | |
4873 | OPENED-NAME is the name used for opening the font, | |
4874 | FULL-NAME is the full name of the font, | |
06f19b91 | 4875 | SIZE is the pixelsize of the font, |
65e7ca35 | 4876 | HEIGHT is the pixel-height of the font (i.e., ascent + descent), |
72606e45 KH |
4877 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4878 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4879 | how to compose characters. | |
4880 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4881 | (Lisp_Object name, Lisp_Object frame) |
72606e45 | 4882 | { |
d9f07150 | 4883 | struct frame *f; |
72606e45 KH |
4884 | struct font *font; |
4885 | Lisp_Object info; | |
4886 | Lisp_Object font_object; | |
4887 | ||
72606e45 KH |
4888 | if (! FONTP (name)) |
4889 | CHECK_STRING (name); | |
7452b7bd | 4890 | f = decode_window_system_frame (frame); |
72606e45 KH |
4891 | |
4892 | if (STRINGP (name)) | |
4893 | { | |
4894 | int fontset = fs_query_fontset (name, 0); | |
4895 | ||
4896 | if (fontset >= 0) | |
4897 | name = fontset_ascii (fontset); | |
d7ea76b4 | 4898 | font_object = font_open_by_name (f, name); |
72606e45 KH |
4899 | } |
4900 | else if (FONT_OBJECT_P (name)) | |
4901 | font_object = name; | |
4902 | else if (FONT_ENTITY_P (name)) | |
4903 | font_object = font_open_entity (f, name, 0); | |
4904 | else | |
4905 | { | |
4906 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4907 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4908 | ||
4909 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4910 | } | |
4911 | if (NILP (font_object)) | |
4912 | return Qnil; | |
4913 | font = XFONT_OBJECT (font_object); | |
4914 | ||
25721f5b | 4915 | info = make_uninit_vector (7); |
28be1ada DA |
4916 | ASET (info, 0, AREF (font_object, FONT_NAME_INDEX)); |
4917 | ASET (info, 1, AREF (font_object, FONT_FULLNAME_INDEX)); | |
4918 | ASET (info, 2, make_number (font->pixel_size)); | |
4919 | ASET (info, 3, make_number (font->height)); | |
4920 | ASET (info, 4, make_number (font->baseline_offset)); | |
4921 | ASET (info, 5, make_number (font->relative_compose)); | |
4922 | ASET (info, 6, make_number (font->default_ascent)); | |
72606e45 KH |
4923 | |
4924 | #if 0 | |
4925 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4926 | close it now. Perhaps, we should manage font-objects | |
4927 | by `reference-count'. */ | |
5035fbc1 | 4928 | font_close_object (f, font_object); |
72606e45 KH |
4929 | #endif |
4930 | return info; | |
4931 | } | |
a266686a | 4932 | #endif |
72606e45 | 4933 | |
c2f5bfd6 | 4934 | \f |
d0ab1ebe KH |
4935 | #define BUILD_STYLE_TABLE(TBL) \ |
4936 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4937 | ||
4938 | static Lisp_Object | |
971de7fb | 4939 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
4940 | { |
4941 | int i, j; | |
4942 | Lisp_Object table, elt; | |
17ab8f5d | 4943 | |
3bfc46eb | 4944 | table = make_uninit_vector (nelement); |
d0ab1ebe KH |
4945 | for (i = 0; i < nelement; i++) |
4946 | { | |
4947 | for (j = 0; entry[i].names[j]; j++); | |
4948 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4949 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4950 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 4951 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
4952 | ASET (table, i, elt); |
4953 | } | |
4954 | return table; | |
4955 | } | |
4956 | ||
d0818984 KH |
4957 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4958 | If ACTION is not nil, that is added to the log when font_add_log is | |
4959 | called next time. At that time, ACTION is set back to nil. */ | |
4960 | static Lisp_Object Vfont_log_deferred; | |
4961 | ||
4962 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4963 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4964 | opening), ARG is the argument for the action, and RESULT is the | |
4965 | result of the action. */ | |
d0ab1ebe | 4966 | void |
675e2c69 | 4967 | font_add_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe | 4968 | { |
13a547c6 | 4969 | Lisp_Object val; |
d0ab1ebe KH |
4970 | int i; |
4971 | ||
d0ab1ebe KH |
4972 | if (EQ (Vfont_log, Qt)) |
4973 | return; | |
d0818984 KH |
4974 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4975 | { | |
51b59d79 | 4976 | char *str = SSDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4977 | |
4978 | ASET (Vfont_log_deferred, 0, Qnil); | |
4979 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
4980 | AREF (Vfont_log_deferred, 2)); | |
4981 | } | |
4982 | ||
d0ab1ebe | 4983 | if (FONTP (arg)) |
db716644 KH |
4984 | { |
4985 | Lisp_Object tail, elt; | |
4986 | Lisp_Object equalstr = build_string ("="); | |
4987 | ||
4988 | val = Ffont_xlfd_name (arg, Qt); | |
4989 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
4990 | tail = XCDR (tail)) | |
4991 | { | |
4992 | elt = XCAR (tail); | |
49f9c344 KH |
4993 | if (EQ (XCAR (elt), QCscript) |
4994 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4995 | val = concat3 (val, SYMBOL_NAME (QCscript), |
4996 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4997 | else if (EQ (XCAR (elt), QClang) |
4998 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4999 | val = concat3 (val, SYMBOL_NAME (QClang), |
5000 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
5001 | else if (EQ (XCAR (elt), QCotf) |
5002 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
5003 | val = concat3 (val, SYMBOL_NAME (QCotf), |
5004 | concat2 (equalstr, | |
5005 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
5006 | } | |
5007 | arg = val; | |
5008 | } | |
72d36834 KH |
5009 | |
5010 | if (CONSP (result) | |
5011 | && VECTORP (XCAR (result)) | |
5012 | && ASIZE (XCAR (result)) > 0 | |
5013 | && FONTP (AREF (XCAR (result), 0))) | |
5014 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 5015 | if (FONTP (result)) |
d26424c5 KH |
5016 | { |
5017 | val = Ffont_xlfd_name (result, Qt); | |
5018 | if (! FONT_SPEC_P (result)) | |
5019 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
5020 | build_string (":"), val); | |
5021 | result = val; | |
5022 | } | |
d0ab1ebe KH |
5023 | else if (CONSP (result)) |
5024 | { | |
13a547c6 | 5025 | Lisp_Object tail; |
d0ab1ebe KH |
5026 | result = Fcopy_sequence (result); |
5027 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
5028 | { | |
5029 | val = XCAR (tail); | |
5030 | if (FONTP (val)) | |
5031 | val = Ffont_xlfd_name (val, Qt); | |
5032 | XSETCAR (tail, val); | |
5033 | } | |
5034 | } | |
5035 | else if (VECTORP (result)) | |
5036 | { | |
5037 | result = Fcopy_sequence (result); | |
5038 | for (i = 0; i < ASIZE (result); i++) | |
5039 | { | |
5040 | val = AREF (result, i); | |
5041 | if (FONTP (val)) | |
5042 | val = Ffont_xlfd_name (val, Qt); | |
5043 | ASET (result, i, val); | |
5044 | } | |
5045 | } | |
5046 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
5047 | } | |
5048 | ||
d0818984 KH |
5049 | /* Record a font-related logging data to be added to Vfont_log when |
5050 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
5051 | as font_add_log. */ | |
5052 | ||
5053 | void | |
675e2c69 | 5054 | font_deferred_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 5055 | { |
652b9560 KH |
5056 | if (EQ (Vfont_log, Qt)) |
5057 | return; | |
d0818984 KH |
5058 | ASET (Vfont_log_deferred, 0, build_string (action)); |
5059 | ASET (Vfont_log_deferred, 1, arg); | |
5060 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 5061 | } |
d0818984 | 5062 | |
c2f5bfd6 | 5063 | void |
971de7fb | 5064 | syms_of_font (void) |
c2f5bfd6 | 5065 | { |
4007dd1c KH |
5066 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
5067 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
5068 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5069 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5070 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5071 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5072 | |
1701724c KH |
5073 | staticpro (&font_charset_alist); |
5074 | font_charset_alist = Qnil; | |
5075 | ||
e0708580 | 5076 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5077 | |
9e1bb909 | 5078 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5079 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5080 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5081 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5082 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5083 | |
071132a9 KH |
5084 | DEFSYM (QCf, "Cf"); |
5085 | ||
c2f5bfd6 | 5086 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5087 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5088 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5089 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5090 | |
5091 | DEFSYM (QCfoundry, ":foundry"); | |
5092 | DEFSYM (QCadstyle, ":adstyle"); | |
5093 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5094 | DEFSYM (QCspacing, ":spacing"); |
5095 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5096 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5097 | DEFSYM (QCavgwidth, ":avgwidth"); |
5098 | DEFSYM (QCfont_entity, ":font-entity"); | |
5099 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5100 | |
ec6fe57c KH |
5101 | DEFSYM (Qc, "c"); |
5102 | DEFSYM (Qm, "m"); | |
5103 | DEFSYM (Qp, "p"); | |
5104 | DEFSYM (Qd, "d"); | |
5105 | ||
cf702558 CY |
5106 | DEFSYM (Qja, "ja"); |
5107 | DEFSYM (Qko, "ko"); | |
5108 | ||
42707278 JD |
5109 | DEFSYM (QCuser_spec, "user-spec"); |
5110 | ||
c2f5bfd6 KH |
5111 | staticpro (&scratch_font_spec); |
5112 | scratch_font_spec = Ffont_spec (0, NULL); | |
5113 | staticpro (&scratch_font_prefer); | |
5114 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5115 | ||
d0818984 KH |
5116 | staticpro (&Vfont_log_deferred); |
5117 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5118 | ||
6a3dadd2 | 5119 | #if 0 |
733fd013 KH |
5120 | #ifdef HAVE_LIBOTF |
5121 | staticpro (&otf_list); | |
5122 | otf_list = Qnil; | |
6a3dadd2 KH |
5123 | #endif /* HAVE_LIBOTF */ |
5124 | #endif /* 0 */ | |
733fd013 | 5125 | |
c2f5bfd6 KH |
5126 | defsubr (&Sfontp); |
5127 | defsubr (&Sfont_spec); | |
5128 | defsubr (&Sfont_get); | |
51cf11be | 5129 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5130 | defsubr (&Sfont_face_attributes); |
51cf11be | 5131 | #endif |
c2f5bfd6 KH |
5132 | defsubr (&Sfont_put); |
5133 | defsubr (&Slist_fonts); | |
35027d0c | 5134 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5135 | defsubr (&Sfind_font); |
5136 | defsubr (&Sfont_xlfd_name); | |
5137 | defsubr (&Sclear_font_cache); | |
071132a9 | 5138 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5139 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5140 | #if 0 |
733fd013 | 5141 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5142 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5143 | #endif /* 0 */ |
c2f5bfd6 KH |
5144 | |
5145 | #ifdef FONT_DEBUG | |
5146 | defsubr (&Sopen_font); | |
5147 | defsubr (&Sclose_font); | |
5148 | defsubr (&Squery_font); | |
a7840ffb | 5149 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5150 | defsubr (&Sfont_match_p); |
10d16101 | 5151 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5152 | #if 0 |
5153 | defsubr (&Sdraw_string); | |
5154 | #endif | |
8c1c7611 | 5155 | defsubr (&Sframe_font_cache); |
c2f5bfd6 | 5156 | #endif /* FONT_DEBUG */ |
a266686a | 5157 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5158 | defsubr (&Sfont_info); |
a266686a | 5159 | #endif |
c2f5bfd6 | 5160 | |
29208e82 | 5161 | DEFVAR_LISP ("font-encoding-alist", Vfont_encoding_alist, |
819e81df KH |
5162 | doc: /* |
5163 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5164 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5165 | where ENCODING is a charset or a char-table, | |
5166 | and REPERTORY is a charset, a char-table, or nil. | |
5167 | ||
027a33c0 | 5168 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5169 | \(REGEXP . ENCODING). |
5170 | ||
5171 | ENCODING is for converting a character to a glyph code of the font. | |
5172 | If ENCODING is a charset, encoding a character by the charset gives | |
5173 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5174 | the table by a character gives the corresponding glyph code. | |
5175 | ||
5176 | REPERTORY specifies a repertory of characters supported by the font. | |
91af3942 | 5177 | If REPERTORY is a charset, all characters belonging to the charset are |
819e81df | 5178 | supported. If REPERTORY is a char-table, all characters who have a |
027a33c0 | 5179 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5180 | gets the repertory information by an opened font and ENCODING. */); |
5181 | Vfont_encoding_alist = Qnil; | |
5182 | ||
933ac235 SM |
5183 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5184 | won't have any effect other than disconnect them from the style | |
5185 | table used by the font display code. So we make them read-only, | |
5186 | to avoid this confusing situation. */ | |
5187 | ||
29208e82 | 5188 | DEFVAR_LISP_NOPRO ("font-weight-table", Vfont_weight_table, |
d0ab1ebe KH |
5189 | doc: /* Vector of valid font weight values. |
5190 | Each element has the form: | |
5191 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5192 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5193 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5194 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe | 5195 | |
29208e82 | 5196 | DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table, |
d0ab1ebe | 5197 | doc: /* Vector of font slant symbols vs the corresponding numeric values. |
17ab8f5d | 5198 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5199 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5200 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe | 5201 | |
29208e82 | 5202 | DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table, |
d0ab1ebe | 5203 | doc: /* Alist of font width symbols vs the corresponding numeric values. |
17ab8f5d | 5204 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5205 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5206 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5207 | |
5208 | staticpro (&font_style_table); | |
25721f5b | 5209 | font_style_table = make_uninit_vector (3); |
d0ab1ebe KH |
5210 | ASET (font_style_table, 0, Vfont_weight_table); |
5211 | ASET (font_style_table, 1, Vfont_slant_table); | |
5212 | ASET (font_style_table, 2, Vfont_width_table); | |
5213 | ||
29208e82 | 5214 | DEFVAR_LISP ("font-log", Vfont_log, doc: /* |
d0ab1ebe KH |
5215 | *Logging list of font related actions and results. |
5216 | The value t means to suppress the logging. | |
5217 | The initial value is set to nil if the environment variable | |
5218 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5219 | Vfont_log = Qnil; | |
5220 | ||
819e81df | 5221 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5222 | #ifdef HAVE_FREETYPE |
35027d0c | 5223 | syms_of_ftfont (); |
c2f5bfd6 | 5224 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5225 | syms_of_xfont (); |
5226 | syms_of_ftxfont (); | |
c2f5bfd6 | 5227 | #ifdef HAVE_XFT |
35027d0c | 5228 | syms_of_xftfont (); |
c2f5bfd6 KH |
5229 | #endif /* HAVE_XFT */ |
5230 | #endif /* HAVE_X_WINDOWS */ | |
5231 | #else /* not HAVE_FREETYPE */ | |
5232 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5233 | syms_of_xfont (); |
c2f5bfd6 KH |
5234 | #endif /* HAVE_X_WINDOWS */ |
5235 | #endif /* not HAVE_FREETYPE */ | |
5236 | #ifdef HAVE_BDFFONT | |
35027d0c | 5237 | syms_of_bdffont (); |
c2f5bfd6 | 5238 | #endif /* HAVE_BDFFONT */ |
0fda9b75 | 5239 | #ifdef HAVE_NTGUI |
35027d0c | 5240 | syms_of_w32font (); |
0fda9b75 | 5241 | #endif /* HAVE_NTGUI */ |
819e81df | 5242 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5243 | } |
885b7d09 | 5244 | |
652b9560 | 5245 | void |
971de7fb | 5246 | init_font (void) |
652b9560 KH |
5247 | { |
5248 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5249 | } |