Commit | Line | Data |
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c2f5bfd6 KH |
1 | /* font.c -- "Font" primitives. |
2 | Copyright (C) 2006 Free Software Foundation, Inc. | |
3 | Copyright (C) 2006 | |
4 | National Institute of Advanced Industrial Science and Technology (AIST) | |
5 | Registration Number H13PRO009 | |
6 | ||
7 | This file is part of GNU Emacs. | |
8 | ||
9 | GNU Emacs is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2, or (at your option) | |
12 | any later version. | |
13 | ||
14 | GNU Emacs is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with GNU Emacs; see the file COPYING. If not, write to | |
21 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
22 | Boston, MA 02110-1301, USA. */ | |
23 | ||
24 | #include <config.h> | |
25 | #include <stdio.h> | |
26 | #include <stdlib.h> | |
27 | #include <ctype.h> | |
1701724c KH |
28 | #ifdef HAVE_M17N_FLT |
29 | #include <m17n-flt.h> | |
30 | #endif | |
c2f5bfd6 KH |
31 | |
32 | #include "lisp.h" | |
33 | #include "buffer.h" | |
34 | #include "frame.h" | |
10d16101 | 35 | #include "window.h" |
c2f5bfd6 KH |
36 | #include "dispextern.h" |
37 | #include "charset.h" | |
38 | #include "character.h" | |
39 | #include "composite.h" | |
40 | #include "fontset.h" | |
41 | #include "font.h" | |
42 | ||
ec6fe57c | 43 | #ifndef FONT_DEBUG |
c2f5bfd6 | 44 | #define FONT_DEBUG |
ec6fe57c | 45 | #endif |
c2f5bfd6 KH |
46 | |
47 | #ifdef FONT_DEBUG | |
48 | #undef xassert | |
49 | #define xassert(X) do {if (!(X)) abort ();} while (0) | |
50 | #else | |
51 | #define xassert(X) (void) 0 | |
52 | #endif | |
53 | ||
54 | int enable_font_backend; | |
55 | ||
e0708580 KH |
56 | Lisp_Object Qopentype; |
57 | ||
1bb1d99b | 58 | /* Important character set symbols. */ |
cf96c5c2 | 59 | Lisp_Object Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 60 | |
c2f5bfd6 KH |
61 | /* Like CHECK_FONT_SPEC but also validate properties of the font-spec, |
62 | and set X to the validated result. */ | |
63 | ||
64 | #define CHECK_VALIDATE_FONT_SPEC(x) \ | |
65 | do { \ | |
66 | if (! FONT_SPEC_P (x)) x = wrong_type_argument (Qfont, x); \ | |
67 | x = font_prop_validate (x); \ | |
68 | } while (0) | |
69 | ||
70 | /* Number of pt per inch (from the TeXbook). */ | |
71 | #define PT_PER_INCH 72.27 | |
72 | ||
9331887d | 73 | /* Return a pixel size (integer) corresponding to POINT size (double) |
ec6fe57c KH |
74 | on resolution DPI. */ |
75 | #define POINT_TO_PIXEL(POINT, DPI) ((POINT) * (DPI) / PT_PER_INCH + 0.5) | |
c2f5bfd6 | 76 | |
9331887d | 77 | /* Return a point size (double) corresponding to POINT size (integer) |
ec6fe57c KH |
78 | on resolution DPI. */ |
79 | #define PIXEL_TO_POINT(PIXEL, DPI) ((PIXEL) * PT_PER_INCH * 10 / (DPI) + 0.5) | |
c2f5bfd6 KH |
80 | |
81 | /* Special string of zero length. It is used to specify a NULL name | |
82 | in a font properties (e.g. adstyle). We don't use the symbol of | |
83 | NULL name because it's confusing (Lisp printer prints nothing for | |
84 | it). */ | |
85 | Lisp_Object null_string; | |
86 | ||
87 | /* Special vector of zero length. This is repeatedly used by (struct | |
88 | font_driver *)->list when a specified font is not found. */ | |
89 | Lisp_Object null_vector; | |
90 | ||
91 | /* Vector of 3 elements. Each element is an alist for one of font | |
45eb10fb | 92 | style properties (weight, slant, width). Each alist contains a |
c2f5bfd6 KH |
93 | mapping between symbolic property values (e.g. `medium' for weight) |
94 | and numeric property values (e.g. 100). So, it looks like this: | |
95 | [((thin . 0) ... (heavy . 210)) | |
96 | ((ro . 0) ... (ot . 210)) | |
97 | ((ultracondensed . 50) ... (wide . 200))] */ | |
98 | static Lisp_Object font_style_table; | |
99 | ||
100 | /* Alist of font family vs the corresponding aliases. | |
101 | Each element has this form: | |
102 | (FAMILY ALIAS1 ALIAS2 ...) */ | |
103 | ||
104 | static Lisp_Object font_family_alist; | |
105 | ||
106 | /* Symbols representing keys of normal font properties. */ | |
107 | extern Lisp_Object QCtype, QCfamily, QCweight, QCslant, QCwidth, QCsize, QCname; | |
108 | Lisp_Object QCfoundry, QCadstyle, QCregistry, QCextra; | |
109 | /* Symbols representing keys of font extra info. */ | |
ec6fe57c | 110 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClanguage, QCscript; |
4c496d0d | 111 | Lisp_Object QCantialias; |
ec6fe57c KH |
112 | /* Symbols representing values of font spacing property. */ |
113 | Lisp_Object Qc, Qm, Qp, Qd; | |
c2f5bfd6 | 114 | |
1701724c KH |
115 | /* Alist of font registry symbol and the corresponding charsets |
116 | information. The information is retrieved from | |
117 | Vfont_encoding_alist on demand. | |
118 | ||
119 | Eash element has the form: | |
120 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
121 | or | |
122 | (REGISTRY . nil) | |
123 | ||
124 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
125 | encodes a character code to a glyph code of a font, and | |
126 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
127 | character is supported by a font. | |
128 | ||
129 | The latter form means that the information for REGISTRY couldn't be | |
130 | retrieved. */ | |
131 | static Lisp_Object font_charset_alist; | |
132 | ||
f697fff0 KH |
133 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
134 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
135 | here. */ |
136 | static struct font_driver_list *font_driver_list; | |
137 | ||
ec6fe57c | 138 | static int font_pixel_size P_ ((FRAME_PTR f, Lisp_Object)); |
c2f5bfd6 KH |
139 | static Lisp_Object prop_name_to_numeric P_ ((enum font_property_index, |
140 | Lisp_Object)); | |
141 | static Lisp_Object prop_numeric_to_name P_ ((enum font_property_index, int)); | |
142 | static Lisp_Object font_open_entity P_ ((FRAME_PTR, Lisp_Object, int)); | |
ec6fe57c | 143 | static void build_font_family_alist P_ ((void)); |
c2f5bfd6 KH |
144 | |
145 | /* Number of registered font drivers. */ | |
146 | static int num_font_drivers; | |
147 | ||
9331887d | 148 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 149 | |
9331887d KH |
150 | static int |
151 | font_pixel_size (f, spec) | |
152 | FRAME_PTR f; | |
153 | Lisp_Object spec; | |
154 | { | |
155 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); | |
156 | double point_size; | |
157 | int pixel_size, dpi; | |
158 | Lisp_Object extra, val; | |
159 | ||
160 | if (INTEGERP (size)) | |
161 | return XINT (size); | |
162 | if (NILP (size)) | |
163 | return 0; | |
164 | point_size = XFLOAT_DATA (size); | |
165 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
27d3d693 | 166 | val = assq_no_quit (QCdpi, extra); |
ec6fe57c KH |
167 | if (CONSP (val)) |
168 | { | |
169 | if (INTEGERP (XCDR (val))) | |
170 | dpi = XINT (XCDR (val)); | |
171 | else | |
172 | dpi = XFLOAT_DATA (XCDR (val)) + 0.5; | |
173 | } | |
9331887d KH |
174 | else |
175 | dpi = f->resy; | |
176 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
177 | return pixel_size; | |
178 | } | |
179 | ||
c2f5bfd6 KH |
180 | /* Return a numeric value corresponding to PROP's NAME (symbol). If |
181 | NAME is not registered in font_style_table, return Qnil. PROP must | |
182 | be one of FONT_{WEIGHT|SLANT|SWIDTH}_INDEX. */ | |
183 | ||
184 | static Lisp_Object | |
185 | prop_name_to_numeric (prop, name) | |
186 | enum font_property_index prop; | |
187 | Lisp_Object name; | |
188 | { | |
189 | int table_index = prop - FONT_WEIGHT_INDEX; | |
190 | Lisp_Object val; | |
191 | ||
192 | val = assq_no_quit (name, AREF (font_style_table, table_index)); | |
193 | return (NILP (val) ? Qnil : XCDR (val)); | |
194 | } | |
195 | ||
196 | ||
197 | /* Return a name (symbol) corresponding to PROP's NUMERIC value. If | |
198 | no name is registered for NUMERIC in font_style_table, return a | |
199 | symbol of integer name (e.g. `123'). PROP must be one of | |
200 | FONT_{WEIGHT|SLANT|SWIDTH}_INDEX. */ | |
201 | ||
202 | static Lisp_Object | |
203 | prop_numeric_to_name (prop, numeric) | |
204 | enum font_property_index prop; | |
205 | int numeric; | |
206 | { | |
207 | int table_index = prop - FONT_WEIGHT_INDEX; | |
208 | Lisp_Object table = AREF (font_style_table, table_index); | |
209 | char buf[10]; | |
210 | ||
211 | while (! NILP (table)) | |
212 | { | |
213 | if (XINT (XCDR (XCAR (table))) >= numeric) | |
214 | { | |
215 | if (XINT (XCDR (XCAR (table))) == numeric) | |
216 | return XCAR (XCAR (table)); | |
217 | else | |
218 | break; | |
219 | } | |
220 | table = XCDR (table); | |
221 | } | |
222 | sprintf (buf, "%d", numeric); | |
223 | return intern (buf); | |
224 | } | |
225 | ||
226 | ||
227 | /* Return a symbol whose name is STR (length LEN). If STR contains | |
228 | uppercase letters, downcase them in advance. */ | |
229 | ||
230 | Lisp_Object | |
231 | intern_downcase (str, len) | |
232 | char *str; | |
233 | int len; | |
234 | { | |
235 | char *buf; | |
236 | int i; | |
237 | ||
238 | for (i = 0; i < len; i++) | |
239 | if (isupper (str[i])) | |
240 | break; | |
241 | if (i == len) | |
242 | return Fintern (make_unibyte_string (str, len), Qnil); | |
243 | buf = alloca (len); | |
244 | if (! buf) | |
245 | return Fintern (null_string, Qnil); | |
246 | bcopy (str, buf, len); | |
247 | for (; i < len; i++) | |
248 | if (isascii (buf[i])) | |
249 | buf[i] = tolower (buf[i]); | |
250 | return Fintern (make_unibyte_string (buf, len), Qnil); | |
251 | } | |
252 | ||
253 | extern Lisp_Object Vface_alternative_font_family_alist; | |
254 | ||
45eb10fb KH |
255 | /* Setup font_family_alist of the form: |
256 | ((FAMILY-SYMBOL ALIAS-SYMBOL ...) ...) | |
257 | from Vface_alternative_font_family_alist of the form: | |
258 | ((FAMILY-STRING ALIAS-STRING ...) ...) */ | |
259 | ||
c2f5bfd6 KH |
260 | static void |
261 | build_font_family_alist () | |
262 | { | |
263 | Lisp_Object alist = Vface_alternative_font_family_alist; | |
264 | ||
265 | for (; CONSP (alist); alist = XCDR (alist)) | |
266 | { | |
267 | Lisp_Object tail, elt; | |
268 | ||
269 | for (tail = XCAR (alist), elt = Qnil ; CONSP (tail); tail = XCDR (tail)) | |
270 | elt = nconc2 (elt, Fcons (Fintern (XCAR (tail), Qnil), Qnil)); | |
271 | font_family_alist = Fcons (elt, font_family_alist); | |
272 | } | |
273 | } | |
274 | ||
1701724c KH |
275 | extern Lisp_Object find_font_encoding P_ ((Lisp_Object)); |
276 | ||
277 | /* Return encoding charset and repertory charset for REGISTRY in | |
278 | ENCODING and REPERTORY correspondingly. If correct information for | |
279 | REGISTRY is available, return 0. Otherwise return -1. */ | |
280 | ||
281 | int | |
282 | font_registry_charsets (registry, encoding, repertory) | |
283 | Lisp_Object registry; | |
284 | struct charset **encoding, **repertory; | |
285 | { | |
286 | Lisp_Object val; | |
287 | int encoding_id, repertory_id; | |
288 | ||
289 | val = assq_no_quit (registry, font_charset_alist); | |
290 | if (! NILP (val)) | |
291 | { | |
292 | val = XCDR (val); | |
293 | if (NILP (val)) | |
294 | return -1; | |
295 | encoding_id = XINT (XCAR (val)); | |
296 | repertory_id = XINT (XCDR (val)); | |
297 | } | |
298 | else | |
299 | { | |
300 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
301 | if (SYMBOLP (val) && CHARSETP (val)) | |
302 | { | |
303 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
304 | } | |
305 | else if (CONSP (val)) | |
306 | { | |
307 | if (! CHARSETP (XCAR (val))) | |
308 | goto invalid_entry; | |
309 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
310 | if (NILP (XCDR (val))) | |
311 | repertory_id = -1; | |
312 | else | |
313 | { | |
314 | if (! CHARSETP (XCDR (val))) | |
315 | goto invalid_entry; | |
316 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
317 | } | |
318 | } | |
319 | else | |
320 | goto invalid_entry; | |
321 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
322 | font_charset_alist | |
323 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
324 | } | |
325 | ||
326 | if (encoding) | |
327 | *encoding = CHARSET_FROM_ID (encoding_id); | |
328 | if (repertory) | |
329 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
330 | return 0; | |
331 | ||
332 | invalid_entry: | |
333 | font_charset_alist | |
334 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
335 | return -1; | |
336 | } | |
337 | ||
c2f5bfd6 | 338 | \f |
45eb10fb KH |
339 | /* Font property value validaters. See the comment of |
340 | font_property_table for the meaning of the arguments. */ | |
341 | ||
342 | static Lisp_Object font_prop_validate_symbol P_ ((Lisp_Object, Lisp_Object)); | |
343 | static Lisp_Object font_prop_validate_style P_ ((Lisp_Object, Lisp_Object)); | |
344 | static Lisp_Object font_prop_validate_non_neg P_ ((Lisp_Object, Lisp_Object)); | |
345 | static Lisp_Object font_prop_validate_spacing P_ ((Lisp_Object, Lisp_Object)); | |
ec6fe57c KH |
346 | static int get_font_prop_index P_ ((Lisp_Object, int)); |
347 | static Lisp_Object font_prop_validate P_ ((Lisp_Object)); | |
c2f5bfd6 KH |
348 | |
349 | static Lisp_Object | |
45eb10fb | 350 | font_prop_validate_symbol (prop, val) |
ec6fe57c | 351 | Lisp_Object prop, val; |
c2f5bfd6 | 352 | { |
ec6fe57c KH |
353 | if (EQ (prop, QCotf)) |
354 | return (SYMBOLP (val) ? val : Qerror); | |
c2f5bfd6 KH |
355 | if (STRINGP (val)) |
356 | val = (SCHARS (val) == 0 ? null_string | |
357 | : intern_downcase ((char *) SDATA (val), SBYTES (val))); | |
358 | else if (SYMBOLP (val)) | |
359 | { | |
360 | if (SCHARS (SYMBOL_NAME (val)) == 0) | |
361 | val = null_string; | |
362 | } | |
363 | else | |
364 | val = Qerror; | |
365 | return val; | |
366 | } | |
367 | ||
368 | static Lisp_Object | |
45eb10fb | 369 | font_prop_validate_style (prop, val) |
ec6fe57c | 370 | Lisp_Object prop, val; |
c2f5bfd6 KH |
371 | { |
372 | if (! INTEGERP (val)) | |
373 | { | |
374 | if (STRINGP (val)) | |
375 | val = intern_downcase ((char *) SDATA (val), SBYTES (val)); | |
376 | if (! SYMBOLP (val)) | |
377 | val = Qerror; | |
378 | else | |
379 | { | |
45eb10fb KH |
380 | enum font_property_index prop_index |
381 | = (EQ (prop, QCweight) ? FONT_WEIGHT_INDEX | |
382 | : EQ (prop, QCslant) ? FONT_SLANT_INDEX | |
383 | : FONT_WIDTH_INDEX); | |
384 | ||
ec6fe57c | 385 | val = prop_name_to_numeric (prop_index, val); |
c2f5bfd6 KH |
386 | if (NILP (val)) |
387 | val = Qerror; | |
388 | } | |
389 | } | |
390 | return val; | |
391 | } | |
392 | ||
393 | static Lisp_Object | |
45eb10fb | 394 | font_prop_validate_non_neg (prop, val) |
ec6fe57c | 395 | Lisp_Object prop, val; |
c2f5bfd6 KH |
396 | { |
397 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
398 | ? val : Qerror); | |
399 | } | |
400 | ||
401 | static Lisp_Object | |
45eb10fb | 402 | font_prop_validate_spacing (prop, val) |
ec6fe57c KH |
403 | Lisp_Object prop, val; |
404 | { | |
405 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
406 | return val; | |
407 | if (EQ (val, Qc)) | |
408 | return make_number (FONT_SPACING_CHARCELL); | |
409 | if (EQ (val, Qm)) | |
410 | return make_number (FONT_SPACING_MONO); | |
411 | if (EQ (val, Qp)) | |
412 | return make_number (FONT_SPACING_PROPORTIONAL); | |
413 | return Qerror; | |
414 | } | |
415 | ||
1701724c KH |
416 | static Lisp_Object |
417 | font_prop_validate_otf (prop, val) | |
418 | Lisp_Object prop, val; | |
419 | { | |
420 | Lisp_Object tail, tmp; | |
421 | int i; | |
422 | ||
423 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
424 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
425 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
426 | if (! CONSP (val)) | |
427 | return Qerror; | |
428 | if (! SYMBOLP (XCAR (val))) | |
429 | return Qerror; | |
430 | tail = XCDR (val); | |
431 | if (NILP (tail)) | |
432 | return val; | |
433 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
434 | return Qerror; | |
435 | for (i = 0; i < 2; i++) | |
436 | { | |
437 | tail = XCDR (tail); | |
438 | if (NILP (tail)) | |
439 | return val; | |
440 | if (! CONSP (tail)) | |
441 | return Qerror; | |
442 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
443 | if (! SYMBOLP (XCAR (tmp))) | |
444 | return Qerror; | |
445 | if (! NILP (tmp)) | |
446 | return Qerror; | |
447 | } | |
448 | return val; | |
449 | } | |
450 | ||
ec6fe57c KH |
451 | /* Structure of known font property keys and validater of the |
452 | values. */ | |
c2f5bfd6 KH |
453 | struct |
454 | { | |
ec6fe57c | 455 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 456 | Lisp_Object *key; |
45eb10fb KH |
457 | /* Function to validate PROP's value VAL, or NULL if any value is |
458 | ok. The value is VAL or its regularized value if VAL is valid, | |
459 | and Qerror if not. */ | |
460 | Lisp_Object (*validater) P_ ((Lisp_Object prop, Lisp_Object val)); | |
ec6fe57c KH |
461 | } font_property_table[] = |
462 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
463 | { &QCfoundry, font_prop_validate_symbol }, |
464 | { &QCfamily, font_prop_validate_symbol }, | |
465 | { &QCadstyle, font_prop_validate_symbol }, | |
466 | { &QCregistry, font_prop_validate_symbol }, | |
467 | { &QCweight, font_prop_validate_style }, | |
468 | { &QCslant, font_prop_validate_style }, | |
469 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c KH |
470 | { &QCsize, font_prop_validate_non_neg }, |
471 | { &QClanguage, font_prop_validate_symbol }, | |
472 | { &QCscript, font_prop_validate_symbol }, | |
473 | { &QCdpi, font_prop_validate_non_neg }, | |
474 | { &QCspacing, font_prop_validate_spacing }, | |
475 | { &QCscalable, NULL }, | |
1701724c | 476 | { &QCotf, font_prop_validate_otf }, |
4c496d0d | 477 | { &QCantialias, font_prop_validate_symbol } |
c2f5bfd6 KH |
478 | }; |
479 | ||
45eb10fb | 480 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
481 | #define FONT_PROPERTY_TABLE_SIZE \ |
482 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
483 | ||
45eb10fb KH |
484 | /* Return an index number of font property KEY or -1 if KEY is not an |
485 | already known property. Start searching font_property_table from | |
486 | index FROM (which is 0 or FONT_EXTRA_INDEX). */ | |
487 | ||
ec6fe57c KH |
488 | static int |
489 | get_font_prop_index (key, from) | |
c2f5bfd6 | 490 | Lisp_Object key; |
ec6fe57c | 491 | int from; |
c2f5bfd6 | 492 | { |
ec6fe57c KH |
493 | for (; from < FONT_PROPERTY_TABLE_SIZE; from++) |
494 | if (EQ (key, *font_property_table[from].key)) | |
495 | return from; | |
496 | return -1; | |
c2f5bfd6 KH |
497 | } |
498 | ||
45eb10fb KH |
499 | /* Validate font properties in SPEC (vector) while updating elements |
500 | to regularized values. Signal an error if an invalid property is | |
501 | found. */ | |
502 | ||
c2f5bfd6 KH |
503 | static Lisp_Object |
504 | font_prop_validate (spec) | |
505 | Lisp_Object spec; | |
506 | { | |
ec6fe57c KH |
507 | int i; |
508 | Lisp_Object prop, val, extra; | |
c2f5bfd6 | 509 | |
ec6fe57c | 510 | for (i = FONT_TYPE_INDEX; i < FONT_EXTRA_INDEX; i++) |
c2f5bfd6 KH |
511 | { |
512 | if (! NILP (AREF (spec, i))) | |
513 | { | |
ec6fe57c | 514 | prop = *font_property_table[i].key; |
45eb10fb | 515 | val = (font_property_table[i].validater) (prop, AREF (spec, i)); |
c2f5bfd6 | 516 | if (EQ (val, Qerror)) |
ec6fe57c KH |
517 | Fsignal (Qfont, list2 (build_string ("invalid font property"), |
518 | Fcons (prop, AREF (spec, i)))); | |
c2f5bfd6 KH |
519 | ASET (spec, i, val); |
520 | } | |
521 | } | |
ec6fe57c KH |
522 | for (extra = AREF (spec, FONT_EXTRA_INDEX); |
523 | CONSP (extra); extra = XCDR (extra)) | |
524 | { | |
525 | Lisp_Object elt = XCAR (extra); | |
526 | ||
527 | prop = XCAR (elt); | |
528 | i = get_font_prop_index (prop, FONT_EXTRA_INDEX); | |
529 | if (i >= 0 | |
530 | && font_property_table[i].validater) | |
531 | { | |
45eb10fb | 532 | val = (font_property_table[i].validater) (prop, XCDR (elt)); |
ec6fe57c KH |
533 | if (EQ (val, Qerror)) |
534 | Fsignal (Qfont, list2 (build_string ("invalid font property"), | |
535 | elt)); | |
536 | XSETCDR (elt, val); | |
537 | } | |
538 | } | |
c2f5bfd6 KH |
539 | return spec; |
540 | } | |
541 | ||
45eb10fb KH |
542 | /* Store VAL as a value of extra font property PROP in FONT. */ |
543 | ||
01dbeb0b | 544 | Lisp_Object |
ec6fe57c | 545 | font_put_extra (font, prop, val) |
9331887d | 546 | Lisp_Object font, prop, val; |
9331887d KH |
547 | { |
548 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 549 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
550 | |
551 | if (NILP (slot)) | |
552 | { | |
553 | extra = Fcons (Fcons (prop, val), extra); | |
554 | ASET (font, FONT_EXTRA_INDEX, extra); | |
ec6fe57c | 555 | return val; |
9331887d | 556 | } |
9331887d | 557 | XSETCDR (slot, val); |
ec6fe57c | 558 | return val; |
9331887d KH |
559 | } |
560 | ||
c2f5bfd6 KH |
561 | \f |
562 | /* Font name parser and unparser */ | |
563 | ||
ec6fe57c KH |
564 | static Lisp_Object intern_font_field P_ ((char *, int)); |
565 | static int parse_matrix P_ ((char *)); | |
566 | static int font_expand_wildcards P_ ((Lisp_Object *, int)); | |
567 | static int font_parse_name P_ ((char *, Lisp_Object)); | |
c2f5bfd6 | 568 | |
ec6fe57c | 569 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
570 | enum xlfd_field_index |
571 | { | |
572 | XLFD_FOUNDRY_INDEX, | |
573 | XLFD_FAMILY_INDEX, | |
574 | XLFD_WEIGHT_INDEX, | |
575 | XLFD_SLANT_INDEX, | |
576 | XLFD_SWIDTH_INDEX, | |
577 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
578 | XLFD_PIXEL_INDEX, |
579 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
580 | XLFD_RESX_INDEX, |
581 | XLFD_RESY_INDEX, | |
582 | XLFD_SPACING_INDEX, | |
583 | XLFD_AVGWIDTH_INDEX, | |
584 | XLFD_REGISTRY_INDEX, | |
585 | XLFD_ENCODING_INDEX, | |
586 | XLFD_LAST_INDEX | |
587 | }; | |
588 | ||
ec6fe57c | 589 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
590 | enum xlfd_field_mask |
591 | { | |
592 | XLFD_FOUNDRY_MASK = 0x0001, | |
593 | XLFD_FAMILY_MASK = 0x0002, | |
594 | XLFD_WEIGHT_MASK = 0x0004, | |
595 | XLFD_SLANT_MASK = 0x0008, | |
596 | XLFD_SWIDTH_MASK = 0x0010, | |
597 | XLFD_ADSTYLE_MASK = 0x0020, | |
598 | XLFD_PIXEL_MASK = 0x0040, | |
599 | XLFD_POINT_MASK = 0x0080, | |
600 | XLFD_RESX_MASK = 0x0100, | |
601 | XLFD_RESY_MASK = 0x0200, | |
602 | XLFD_SPACING_MASK = 0x0400, | |
603 | XLFD_AVGWIDTH_MASK = 0x0800, | |
604 | XLFD_REGISTRY_MASK = 0x1000, | |
605 | XLFD_ENCODING_MASK = 0x2000 | |
606 | }; | |
607 | ||
608 | ||
ec6fe57c KH |
609 | /* Return a Lispy value of a XLFD font field at STR and LEN bytes. |
610 | If LEN is zero, it returns `null_string'. | |
611 | If STR is "*", it returns nil. | |
612 | If all characters in STR are digits, it returns an integer. | |
613 | Otherwise, it returns a symbol interned from downcased STR. */ | |
c2f5bfd6 KH |
614 | |
615 | static Lisp_Object | |
4485a28e KH |
616 | intern_font_field (str, len) |
617 | char *str; | |
618 | int len; | |
c2f5bfd6 | 619 | { |
4485a28e | 620 | int i; |
c2f5bfd6 KH |
621 | |
622 | if (len == 0) | |
623 | return null_string; | |
624 | if (*str == '*' && len == 1) | |
625 | return Qnil; | |
4485a28e KH |
626 | if (isdigit (*str)) |
627 | { | |
628 | for (i = 1; i < len; i++) | |
629 | if (! isdigit (str[i])) | |
630 | break; | |
631 | if (i == len) | |
632 | return make_number (atoi (str)); | |
633 | } | |
c2f5bfd6 KH |
634 | return intern_downcase (str, len); |
635 | } | |
636 | ||
637 | /* Parse P pointing the pixel/point size field of the form | |
638 | `[A B C D]' which specifies a transformation matrix: | |
639 | ||
640 | A B 0 | |
641 | C D 0 | |
642 | 0 0 1 | |
643 | ||
644 | by which all glyphs of the font are transformed. The spec says | |
645 | that scalar value N for the pixel/point size is equivalent to: | |
646 | A = N * resx/resy, B = C = 0, D = N. | |
647 | ||
648 | Return the scalar value N if the form is valid. Otherwise return | |
649 | -1. */ | |
650 | ||
651 | static int | |
652 | parse_matrix (p) | |
653 | char *p; | |
654 | { | |
655 | double matrix[4]; | |
656 | char *end; | |
657 | int i; | |
658 | ||
659 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
660 | { | |
661 | if (*p == '~') | |
662 | matrix[i] = - strtod (p + 1, &end); | |
663 | else | |
664 | matrix[i] = strtod (p, &end); | |
665 | p = end; | |
666 | } | |
667 | return (i == 4 ? (int) matrix[3] : -1); | |
668 | } | |
669 | ||
4485a28e KH |
670 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
671 | multiple fields to fill in all 14 XLFD fields while restring a | |
672 | field position by its contents. */ | |
673 | ||
ec6fe57c | 674 | static int |
4485a28e KH |
675 | font_expand_wildcards (field, n) |
676 | Lisp_Object field[XLFD_LAST_INDEX]; | |
677 | int n; | |
678 | { | |
679 | /* Copy of FIELD. */ | |
680 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
681 | /* Array of information about where this element can go. Nth | |
682 | element is for Nth element of FIELD. */ | |
683 | struct { | |
684 | /* Minimum possible field. */ | |
685 | int from; | |
686 | /* Maxinum possible field. */ | |
687 | int to; | |
688 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
689 | int mask; | |
690 | } range[XLFD_LAST_INDEX]; | |
691 | int i, j; | |
ec6fe57c | 692 | int range_from, range_to; |
4485a28e KH |
693 | unsigned range_mask; |
694 | ||
695 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
696 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
697 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 698 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 699 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
700 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
701 | ||
702 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
703 | field. The value is shifted to left one bit by one in the | |
704 | following loop. */ | |
705 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
706 | range_mask = (range_mask << 1) | 1; | |
707 | ||
ec6fe57c KH |
708 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
709 | position-based retriction for FIELD[I]. */ | |
710 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
711 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 712 | { |
4485a28e KH |
713 | Lisp_Object val = field[i]; |
714 | ||
715 | tmp[i] = val; | |
716 | if (NILP (val)) | |
717 | { | |
718 | /* Wildcard. */ | |
719 | range[i].from = range_from; | |
720 | range[i].to = range_to; | |
721 | range[i].mask = range_mask; | |
722 | } | |
723 | else | |
724 | { | |
725 | /* The triplet FROM, TO, and MASK is a value-based | |
726 | retriction for FIELD[I]. */ | |
727 | int from, to; | |
728 | unsigned mask; | |
729 | ||
730 | if (INTEGERP (val)) | |
731 | { | |
732 | int numeric = XINT (val); | |
733 | ||
ef18374f KH |
734 | if (i + 1 == n) |
735 | from = to = XLFD_ENCODING_INDEX, | |
736 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
737 | else if (numeric == 0) |
738 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
739 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
740 | else if (numeric <= 48) |
741 | from = to = XLFD_PIXEL_INDEX, | |
742 | mask = XLFD_PIXEL_MASK; | |
ec6fe57c KH |
743 | else |
744 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
4485a28e KH |
745 | mask = XLFD_LARGENUM_MASK; |
746 | } | |
747 | else if (EQ (val, null_string)) | |
748 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, | |
749 | mask = XLFD_NULL_MASK; | |
750 | else if (i == 0) | |
751 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
752 | else if (i + 1 == n) | |
753 | { | |
754 | Lisp_Object name = SYMBOL_NAME (val); | |
755 | ||
756 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
757 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
758 | mask = XLFD_REGENC_MASK; | |
759 | else | |
760 | from = to = XLFD_ENCODING_INDEX, | |
761 | mask = XLFD_ENCODING_MASK; | |
762 | } | |
ef18374f KH |
763 | else if (range_from <= XLFD_WEIGHT_INDEX |
764 | && range_to >= XLFD_WEIGHT_INDEX | |
765 | && !NILP (prop_name_to_numeric (FONT_WEIGHT_INDEX, val))) | |
4485a28e | 766 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
767 | else if (range_from <= XLFD_SLANT_INDEX |
768 | && range_to >= XLFD_SLANT_INDEX | |
769 | && !NILP (prop_name_to_numeric (FONT_SLANT_INDEX, val))) | |
4485a28e | 770 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
771 | else if (range_from <= XLFD_SWIDTH_INDEX |
772 | && range_to >= XLFD_SWIDTH_INDEX | |
773 | && !NILP (prop_name_to_numeric (FONT_WIDTH_INDEX, val))) | |
4485a28e KH |
774 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
775 | else | |
776 | { | |
ec6fe57c | 777 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
778 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
779 | else | |
780 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
781 | mask = XLFD_SYMBOL_MASK; | |
782 | } | |
783 | ||
784 | /* Merge position-based and value-based restrictions. */ | |
785 | mask &= range_mask; | |
786 | while (from < range_from) | |
787 | mask &= ~(1 << from++); | |
788 | while (from < 14 && ! (mask & (1 << from))) | |
789 | from++; | |
790 | while (to > range_to) | |
791 | mask &= ~(1 << to--); | |
792 | while (to >= 0 && ! (mask & (1 << to))) | |
793 | to--; | |
794 | if (from > to) | |
795 | return -1; | |
796 | range[i].from = from; | |
797 | range[i].to = to; | |
798 | range[i].mask = mask; | |
799 | ||
800 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
801 | { |
802 | /* The range is narrowed by value-based restrictions. | |
803 | Reflect it to the other fields. */ | |
804 | ||
805 | /* Following fields should be after FROM. */ | |
806 | range_from = from; | |
807 | /* Preceding fields should be before TO. */ | |
808 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
809 | { | |
810 | /* Check FROM for non-wildcard field. */ | |
811 | if (! NILP (tmp[j]) && range[j].from < from) | |
812 | { | |
813 | while (range[j].from < from) | |
814 | range[j].mask &= ~(1 << range[j].from++); | |
815 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
816 | from++; | |
817 | range[j].from = from; | |
818 | } | |
819 | else | |
820 | from = range[j].from; | |
821 | if (range[j].to > to) | |
822 | { | |
823 | while (range[j].to > to) | |
824 | range[j].mask &= ~(1 << range[j].to--); | |
825 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
826 | to--; | |
827 | range[j].to = to; | |
828 | } | |
829 | else | |
830 | to = range[j].to; | |
831 | if (from > to) | |
832 | return -1; | |
833 | } | |
834 | } | |
4485a28e KH |
835 | } |
836 | } | |
837 | ||
838 | /* Decide all fileds from restrictions in RANGE. */ | |
839 | for (i = j = 0; i < n ; i++) | |
840 | { | |
841 | if (j < range[i].from) | |
842 | { | |
843 | if (i == 0 || ! NILP (tmp[i - 1])) | |
844 | /* None of TMP[X] corresponds to Jth field. */ | |
845 | return -1; | |
846 | for (; j < range[i].from; j++) | |
847 | field[j] = Qnil; | |
848 | } | |
849 | field[j++] = tmp[i]; | |
850 | } | |
851 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
852 | return -1; | |
853 | for (; j < XLFD_LAST_INDEX; j++) | |
854 | field[j] = Qnil; | |
855 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
856 | field[XLFD_ENCODING_INDEX] | |
857 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
858 | return 0; | |
859 | } | |
860 | ||
ef18374f | 861 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
862 | (font-spec or font-entity). Size property of FONT is set as |
863 | follows: | |
864 | specified XLFD fields FONT property | |
865 | --------------------- ------------- | |
866 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
867 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
868 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
869 | ||
ec6fe57c | 870 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 871 | |
ec6fe57c KH |
872 | FONT is usually a font-spec, but when this function is called from |
873 | X font backend driver, it is a font-entity. In that case, NAME is | |
874 | a fully specified XLFD, and we set FONT_EXTRA_INDEX of FONT to a | |
875 | symbol RESX-RESY-SPACING-AVGWIDTH. | |
876 | */ | |
c2f5bfd6 KH |
877 | |
878 | int | |
ec6fe57c | 879 | font_parse_xlfd (name, font) |
c2f5bfd6 KH |
880 | char *name; |
881 | Lisp_Object font; | |
c2f5bfd6 KH |
882 | { |
883 | int len = strlen (name); | |
884 | int i, j; | |
ec6fe57c KH |
885 | Lisp_Object dpi, spacing; |
886 | int avgwidth; | |
cf23b845 | 887 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 888 | Lisp_Object val; |
4485a28e | 889 | char *p; |
c2f5bfd6 KH |
890 | |
891 | if (len > 255) | |
892 | /* Maximum XLFD name length is 255. */ | |
893 | return -1; | |
ec6fe57c KH |
894 | /* Accept "*-.." as a fully specified XLFD. */ |
895 | if (name[0] == '*' && name[1] == '-') | |
896 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; | |
897 | else | |
898 | i = 0; | |
899 | for (p = name + i; *p; p++) | |
900 | if (*p == '-' && i < XLFD_LAST_INDEX) | |
901 | f[i++] = p + 1; | |
902 | f[i] = p; | |
c2f5bfd6 | 903 | |
ec6fe57c KH |
904 | dpi = spacing = Qnil; |
905 | avgwidth = -1; | |
4485a28e | 906 | |
ec6fe57c | 907 | if (i == XLFD_LAST_INDEX) |
4485a28e | 908 | { |
ec6fe57c KH |
909 | int pixel_size; |
910 | ||
4485a28e | 911 | /* Fully specified XLFD. */ |
ec6fe57c KH |
912 | for (i = 0, j = FONT_FOUNDRY_INDEX; i < XLFD_WEIGHT_INDEX; i++, j++) |
913 | { | |
914 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
915 | if (! NILP (val)) | |
916 | ASET (font, j, val); | |
917 | } | |
918 | for (j = FONT_WEIGHT_INDEX; i < XLFD_ADSTYLE_INDEX; i++, j++) | |
4485a28e | 919 | { |
ec6fe57c KH |
920 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); |
921 | if (! NILP (val)) | |
4485a28e | 922 | { |
ec6fe57c KH |
923 | Lisp_Object numeric = prop_name_to_numeric (j, val); |
924 | ||
925 | if (INTEGERP (numeric)) | |
926 | val = numeric; | |
927 | ASET (font, j, val); | |
928 | } | |
929 | } | |
930 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
931 | if (! NILP (val)) | |
932 | ASET (font, FONT_ADSTYLE_INDEX, val); | |
933 | i = XLFD_REGISTRY_INDEX; | |
934 | val = intern_font_field (f[i], f[i + 2] - f[i]); | |
935 | if (! NILP (val)) | |
936 | ASET (font, FONT_REGISTRY_INDEX, val); | |
937 | ||
938 | p = f[XLFD_PIXEL_INDEX]; | |
939 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
940 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); | |
941 | else | |
942 | { | |
943 | i = XLFD_PIXEL_INDEX; | |
944 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
945 | if (! NILP (val)) | |
946 | ASET (font, FONT_SIZE_INDEX, val); | |
947 | else | |
948 | { | |
949 | double point_size = -1; | |
950 | ||
951 | xassert (FONT_SPEC_P (font)); | |
952 | p = f[XLFD_POINT_INDEX]; | |
953 | if (*p == '[') | |
954 | point_size = parse_matrix (p); | |
955 | else if (isdigit (*p)) | |
956 | point_size = atoi (p), point_size /= 10; | |
957 | if (point_size >= 0) | |
958 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
959 | else |
960 | { | |
ec6fe57c KH |
961 | i = XLFD_PIXEL_INDEX; |
962 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
963 | if (! NILP (val)) | |
964 | ASET (font, FONT_SIZE_INDEX, val); | |
4485a28e | 965 | } |
4485a28e KH |
966 | } |
967 | } | |
ec6fe57c KH |
968 | |
969 | /* Parse RESX, RESY, SPACING, and AVGWIDTH. */ | |
970 | if (FONT_ENTITY_P (font)) | |
971 | { | |
972 | i = XLFD_RESX_INDEX; | |
973 | ASET (font, FONT_EXTRA_INDEX, | |
974 | intern_font_field (f[i], f[XLFD_REGISTRY_INDEX] - 1 - f[i])); | |
975 | return 0; | |
976 | } | |
977 | ||
978 | /* Here we just setup DPI, SPACING, and AVGWIDTH. They are set | |
979 | in FONT_EXTRA_INDEX later. */ | |
980 | i = XLFD_RESX_INDEX; | |
981 | dpi = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
982 | i = XLFD_SPACING_INDEX; | |
983 | spacing = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
984 | p = f[XLFD_AVGWIDTH_INDEX]; | |
985 | if (*p == '~') | |
986 | p++; | |
987 | if (isdigit (*p)) | |
988 | avgwidth = atoi (p); | |
4485a28e KH |
989 | } |
990 | else | |
c2f5bfd6 | 991 | { |
4485a28e | 992 | int wild_card_found = 0; |
ec6fe57c | 993 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 994 | |
ec6fe57c | 995 | for (j = 0; j < i; j++) |
4485a28e | 996 | { |
ec6fe57c | 997 | if (*f[j] == '*') |
4485a28e | 998 | { |
ec6fe57c KH |
999 | if (f[j][1] && f[j][1] != '-') |
1000 | return -1; | |
1001 | prop[j] = Qnil; | |
1002 | wild_card_found = 1; | |
1003 | } | |
1004 | else if (isdigit (*f[j])) | |
1005 | { | |
1006 | for (p = f[j] + 1; isdigit (*p); p++); | |
1007 | if (*p && *p != '-') | |
1008 | prop[j] = intern_downcase (f[j], p - f[j]); | |
4485a28e | 1009 | else |
ec6fe57c | 1010 | prop[j] = make_number (atoi (f[j])); |
4485a28e | 1011 | } |
ec6fe57c KH |
1012 | else if (j + 1 < i) |
1013 | prop[j] = intern_font_field (f[j], f[j + 1] - 1 - f[j]); | |
1014 | else | |
1015 | prop[j] = intern_font_field (f[j], f[i] - f[j]); | |
4485a28e KH |
1016 | } |
1017 | if (! wild_card_found) | |
c2f5bfd6 | 1018 | return -1; |
ec6fe57c | 1019 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1020 | return -1; |
ec6fe57c KH |
1021 | |
1022 | for (i = 0, j = FONT_FOUNDRY_INDEX; i < XLFD_WEIGHT_INDEX; i++, j++) | |
1023 | if (! NILP (prop[i])) | |
1024 | ASET (font, j, prop[i]); | |
1025 | for (j = FONT_WEIGHT_INDEX; i < XLFD_ADSTYLE_INDEX; i++, j++) | |
1026 | if (! NILP (prop[i])) | |
1027 | ASET (font, j, prop[i]); | |
1028 | if (! NILP (prop[XLFD_ADSTYLE_INDEX])) | |
1029 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
1030 | val = prop[XLFD_REGISTRY_INDEX]; | |
1031 | if (NILP (val)) | |
c2f5bfd6 | 1032 | { |
ec6fe57c KH |
1033 | val = prop[XLFD_ENCODING_INDEX]; |
1034 | if (! NILP (val)) | |
1035 | val = Fintern (concat2 (build_string ("*-"), SYMBOL_NAME (val)), | |
1036 | Qnil); | |
4485a28e | 1037 | } |
ec6fe57c KH |
1038 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
1039 | val = Fintern (concat2 (SYMBOL_NAME (val), build_string ("-*")), | |
1040 | Qnil); | |
4485a28e | 1041 | else |
ec6fe57c KH |
1042 | val = Fintern (concat3 (SYMBOL_NAME (val), build_string ("-"), |
1043 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])), | |
1044 | Qnil); | |
1045 | if (! NILP (val)) | |
1046 | ASET (font, FONT_REGISTRY_INDEX, val); | |
1047 | ||
1048 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1049 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1050 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1051 | { |
ec6fe57c | 1052 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1053 | |
ec6fe57c KH |
1054 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1055 | } | |
c2f5bfd6 | 1056 | |
ec6fe57c KH |
1057 | dpi = prop[XLFD_RESX_INDEX]; |
1058 | spacing = prop[XLFD_SPACING_INDEX]; | |
1059 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) | |
1060 | avgwidth = XINT (prop[XLFD_AVGWIDTH_INDEX]); | |
c2f5bfd6 KH |
1061 | } |
1062 | ||
ec6fe57c KH |
1063 | if (! NILP (dpi)) |
1064 | font_put_extra (font, QCdpi, dpi); | |
1065 | if (! NILP (spacing)) | |
1066 | font_put_extra (font, QCspacing, spacing); | |
1067 | if (avgwidth >= 0) | |
1068 | font_put_extra (font, QCscalable, avgwidth == 0 ? Qt : Qnil); | |
c2f5bfd6 | 1069 | |
ec6fe57c | 1070 | return 0; |
c2f5bfd6 KH |
1071 | } |
1072 | ||
1073 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1074 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1075 | 0, use PIXEL_SIZE instead. */ | |
1076 | ||
1077 | int | |
1078 | font_unparse_xlfd (font, pixel_size, name, nbytes) | |
1079 | Lisp_Object font; | |
1bb1d99b | 1080 | int pixel_size; |
c2f5bfd6 KH |
1081 | char *name; |
1082 | int nbytes; | |
1083 | { | |
ec6fe57c | 1084 | char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 KH |
1085 | Lisp_Object val; |
1086 | int i, j, len = 0; | |
1087 | ||
1088 | xassert (FONTP (font)); | |
1089 | ||
1090 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1091 | i++, j++) | |
1092 | { | |
1093 | if (i == FONT_ADSTYLE_INDEX) | |
1094 | j = XLFD_ADSTYLE_INDEX; | |
1095 | else if (i == FONT_REGISTRY_INDEX) | |
1096 | j = XLFD_REGISTRY_INDEX; | |
1097 | val = AREF (font, i); | |
1098 | if (NILP (val)) | |
1bb1d99b KH |
1099 | { |
1100 | if (j == XLFD_REGISTRY_INDEX) | |
1101 | f[j] = "*-*", len += 4; | |
1102 | else | |
1103 | f[j] = "*", len += 2; | |
1104 | } | |
c2f5bfd6 KH |
1105 | else |
1106 | { | |
1107 | if (SYMBOLP (val)) | |
1108 | val = SYMBOL_NAME (val); | |
1bb1d99b KH |
1109 | if (j == XLFD_REGISTRY_INDEX |
1110 | && ! strchr ((char *) SDATA (val), '-')) | |
1111 | { | |
1112 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1113 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1114 | { | |
1115 | f[j] = alloca (SBYTES (val) + 3); | |
1116 | sprintf (f[j], "%s-*", SDATA (val)); | |
1117 | len += SBYTES (val) + 3; | |
1118 | } | |
1119 | else | |
1120 | { | |
1121 | f[j] = alloca (SBYTES (val) + 4); | |
1122 | sprintf (f[j], "%s*-*", SDATA (val)); | |
1123 | len += SBYTES (val) + 4; | |
1124 | } | |
1125 | } | |
1126 | else | |
1127 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
c2f5bfd6 KH |
1128 | } |
1129 | } | |
1130 | ||
1131 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1132 | i++, j++) | |
1133 | { | |
1134 | val = AREF (font, i); | |
1135 | if (NILP (val)) | |
1136 | f[j] = "*", len += 2; | |
1137 | else | |
1138 | { | |
1139 | if (INTEGERP (val)) | |
1140 | val = prop_numeric_to_name (i, XINT (val)); | |
1141 | if (SYMBOLP (val)) | |
1142 | val = SYMBOL_NAME (val); | |
1143 | xassert (STRINGP (val)); | |
1144 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | val = AREF (font, FONT_SIZE_INDEX); | |
1149 | xassert (NUMBERP (val) || NILP (val)); | |
1150 | if (INTEGERP (val)) | |
1151 | { | |
ec6fe57c | 1152 | f[XLFD_PIXEL_INDEX] = alloca (22); |
c2f5bfd6 KH |
1153 | i = XINT (val); |
1154 | if (i > 0) | |
ec6fe57c | 1155 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", i) + 1; |
2d477dca | 1156 | else if (pixel_size > 0) |
ec6fe57c | 1157 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", pixel_size) + 1; |
2d477dca | 1158 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
c2f5bfd6 KH |
1159 | } |
1160 | else if (FLOATP (val)) | |
1161 | { | |
ec6fe57c | 1162 | f[XLFD_PIXEL_INDEX] = alloca (12); |
c2f5bfd6 | 1163 | i = XFLOAT_DATA (val) * 10; |
ec6fe57c | 1164 | len += sprintf (f[XLFD_PIXEL_INDEX], "*-%d", i) + 1; |
c2f5bfd6 KH |
1165 | } |
1166 | else | |
ec6fe57c KH |
1167 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1168 | ||
1169 | val = AREF (font, FONT_EXTRA_INDEX); | |
c2f5bfd6 KH |
1170 | |
1171 | if (FONT_ENTITY_P (font) | |
1172 | && EQ (AREF (font, FONT_TYPE_INDEX), Qx)) | |
1173 | { | |
ec6fe57c | 1174 | /* Setup names for RESX-RESY-SPACING-AVWIDTH. */ |
c2f5bfd6 KH |
1175 | if (SYMBOLP (val) && ! NILP (val)) |
1176 | { | |
1177 | val = SYMBOL_NAME (val); | |
ec6fe57c | 1178 | f[XLFD_RESX_INDEX] = (char *) SDATA (val), len += SBYTES (val) + 1; |
c2f5bfd6 KH |
1179 | } |
1180 | else | |
ec6fe57c | 1181 | f[XLFD_RESX_INDEX] = "*-*-*-*", len += 6; |
c2f5bfd6 KH |
1182 | } |
1183 | else | |
ec6fe57c KH |
1184 | { |
1185 | Lisp_Object dpi = assq_no_quit (QCdpi, val); | |
1186 | Lisp_Object spacing = assq_no_quit (QCspacing, val); | |
1187 | Lisp_Object scalable = assq_no_quit (QCscalable, val); | |
1188 | ||
1189 | if (CONSP (dpi) || CONSP (spacing) || CONSP (scalable)) | |
1190 | { | |
1191 | char *str = alloca (24); | |
1192 | int this_len; | |
c2f5bfd6 | 1193 | |
ec6fe57c KH |
1194 | if (CONSP (dpi) && INTEGERP (XCDR (dpi))) |
1195 | this_len = sprintf (str, "%d-%d", | |
1196 | XINT (XCDR (dpi)), XINT (XCDR (dpi))); | |
1197 | else | |
1198 | this_len = sprintf (str, "*-*"); | |
1199 | if (CONSP (spacing) && ! NILP (XCDR (spacing))) | |
1200 | { | |
1201 | val = XCDR (spacing); | |
1202 | if (INTEGERP (val)) | |
1203 | { | |
1204 | if (XINT (val) < FONT_SPACING_MONO) | |
1205 | val = Qp; | |
1206 | else if (XINT (val) < FONT_SPACING_CHARCELL) | |
1207 | val = Qm; | |
1208 | else | |
1209 | val = Qc; | |
1210 | } | |
1211 | xassert (SYMBOLP (val)); | |
1212 | this_len += sprintf (str + this_len, "-%c", | |
1213 | SDATA (SYMBOL_NAME (val))[0]); | |
1214 | } | |
1215 | else | |
1216 | this_len += sprintf (str + this_len, "-*"); | |
1217 | if (CONSP (scalable) && ! NILP (XCDR (spacing))) | |
1218 | this_len += sprintf (str + this_len, "-0"); | |
1219 | else | |
1220 | this_len += sprintf (str + this_len, "-*"); | |
1221 | f[XLFD_RESX_INDEX] = str; | |
1222 | len += this_len; | |
1223 | } | |
1224 | else | |
1225 | f[XLFD_RESX_INDEX] = "*-*-*-*", len += 8; | |
1226 | } | |
1227 | ||
1228 | len++; /* for terminating '\0'. */ | |
c2f5bfd6 KH |
1229 | if (len >= nbytes) |
1230 | return -1; | |
ec6fe57c | 1231 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1232 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1233 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
1234 | f[XLFD_SWIDTH_INDEX], | |
ec6fe57c KH |
1235 | f[XLFD_ADSTYLE_INDEX], f[XLFD_PIXEL_INDEX], |
1236 | f[XLFD_RESX_INDEX], f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1237 | } |
1238 | ||
ef18374f | 1239 | /* Parse NAME (null terminated) as Fonconfig's name format and store |
9331887d KH |
1240 | information in FONT (font-spec or font-entity). If NAME is |
1241 | successfully parsed, return 0. Otherwise return -1. */ | |
ef18374f KH |
1242 | |
1243 | int | |
ec6fe57c | 1244 | font_parse_fcname (name, font) |
ef18374f KH |
1245 | char *name; |
1246 | Lisp_Object font; | |
ef18374f KH |
1247 | { |
1248 | char *p0, *p1; | |
9331887d KH |
1249 | int len = strlen (name); |
1250 | char *copy; | |
9ba6fd41 JR |
1251 | int weight_set = 0; |
1252 | int slant_set = 0; | |
ef18374f | 1253 | |
ec6fe57c KH |
1254 | if (len == 0) |
1255 | return -1; | |
ef18374f KH |
1256 | /* It is assured that (name[0] && name[0] != '-'). */ |
1257 | if (name[0] == ':') | |
1258 | p0 = name; | |
1259 | else | |
1260 | { | |
ec6fe57c KH |
1261 | Lisp_Object family; |
1262 | double point_size; | |
1263 | ||
1264 | for (p0 = name + 1; *p0 && (*p0 != '-' && *p0 != ':'); p0++) | |
1265 | if (*p0 == '\\' && p0[1]) | |
1266 | p0++; | |
1267 | family = intern_font_field (name, p0 - name); | |
1268 | if (*p0 == '-') | |
ef18374f | 1269 | { |
ec6fe57c KH |
1270 | if (! isdigit (p0[1])) |
1271 | return -1; | |
1272 | point_size = strtod (p0 + 1, &p1); | |
1273 | if (*p1 && *p1 != ':') | |
1274 | return -1; | |
1275 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1276 | p0 = p1; | |
ef18374f | 1277 | } |
ec6fe57c | 1278 | ASET (font, FONT_FAMILY_INDEX, family); |
ef18374f | 1279 | } |
9331887d KH |
1280 | |
1281 | len -= p0 - name; | |
1282 | copy = alloca (len + 1); | |
1283 | if (! copy) | |
1284 | return -1; | |
1285 | name = copy; | |
1286 | ||
1287 | /* Now parse ":KEY=VAL" patterns. Store known keys and values in | |
1288 | extra, copy unknown ones to COPY. */ | |
ef18374f KH |
1289 | while (*p0) |
1290 | { | |
1291 | Lisp_Object key, val; | |
ec6fe57c | 1292 | int prop; |
ef18374f | 1293 | |
ec6fe57c | 1294 | for (p1 = p0 + 1; *p1 && *p1 != '=' && *p1 != ':'; p1++); |
9331887d | 1295 | if (*p1 != '=') |
ef18374f | 1296 | { |
9331887d KH |
1297 | /* Must be an enumerated value. */ |
1298 | val = intern_font_field (p0 + 1, p1 - p0 - 1); | |
9331887d KH |
1299 | if (memcmp (p0 + 1, "light", 5) == 0 |
1300 | || memcmp (p0 + 1, "medium", 6) == 0 | |
1301 | || memcmp (p0 + 1, "demibold", 8) == 0 | |
1302 | || memcmp (p0 + 1, "bold", 4) == 0 | |
1303 | || memcmp (p0 + 1, "black", 5) == 0) | |
1304 | { | |
ec6fe57c | 1305 | ASET (font, FONT_WEIGHT_INDEX, val); |
9ba6fd41 | 1306 | weight_set = 1; |
9331887d KH |
1307 | } |
1308 | else if (memcmp (p0 + 1, "roman", 5) == 0 | |
1309 | || memcmp (p0 + 1, "italic", 6) == 0 | |
1310 | || memcmp (p0 + 1, "oblique", 7) == 0) | |
1311 | { | |
ec6fe57c | 1312 | ASET (font, FONT_SLANT_INDEX, val); |
9ba6fd41 | 1313 | slant_set = 1; |
9331887d KH |
1314 | } |
1315 | else if (memcmp (p0 + 1, "charcell", 8) == 0 | |
1316 | || memcmp (p0 + 1, "mono", 4) == 0 | |
1317 | || memcmp (p0 + 1, "proportional", 12) == 0) | |
1318 | { | |
1319 | font_put_extra (font, QCspacing, | |
ec6fe57c | 1320 | (p0[1] == 'c' ? Qc : p0[1] == 'm' ? Qm : Qp)); |
9331887d KH |
1321 | } |
1322 | else | |
1323 | { | |
1324 | /* unknown key */ | |
1325 | bcopy (p0, copy, p1 - p0); | |
1326 | copy += p1 - p0; | |
1327 | } | |
ef18374f KH |
1328 | } |
1329 | else | |
1330 | { | |
9331887d KH |
1331 | if (memcmp (p0 + 1, "pixelsize=", 10) == 0) |
1332 | prop = FONT_SIZE_INDEX; | |
1333 | else | |
1334 | { | |
1335 | key = intern_font_field (p0, p1 - p0); | |
ec6fe57c | 1336 | prop = get_font_prop_index (key, 0); |
9331887d KH |
1337 | } |
1338 | p0 = p1 + 1; | |
1339 | for (p1 = p0; *p1 && *p1 != ':'; p1++); | |
ec6fe57c KH |
1340 | val = intern_font_field (p0, p1 - p0); |
1341 | if (! NILP (val)) | |
9331887d | 1342 | { |
ec6fe57c | 1343 | if (prop >= 0 && prop < FONT_EXTRA_INDEX) |
ef18374f | 1344 | { |
9ba6fd41 JR |
1345 | if (prop == FONT_WEIGHT_INDEX) |
1346 | weight_set = 1; | |
1347 | else if (prop == FONT_SLANT_INDEX) | |
1348 | slant_set = 1; | |
1349 | ||
ec6fe57c KH |
1350 | ASET (font, prop, val); |
1351 | } | |
ec6fe57c | 1352 | else |
e950d6f1 | 1353 | font_put_extra (font, key, val); |
ef18374f KH |
1354 | } |
1355 | } | |
1356 | p0 = p1; | |
1357 | } | |
9331887d | 1358 | |
9ba6fd41 JR |
1359 | if (!weight_set) |
1360 | ASET (font, FONT_WEIGHT_INDEX, build_string ("normal")); | |
1361 | if (!slant_set) | |
1362 | ASET (font, FONT_SLANT_INDEX, build_string ("normal")); | |
1363 | ||
9331887d | 1364 | return 0; |
ef18374f KH |
1365 | } |
1366 | ||
1367 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1368 | NAME (NBYTES length), and return the name length. If | |
1369 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1370 | ||
1371 | int | |
1372 | font_unparse_fcname (font, pixel_size, name, nbytes) | |
1373 | Lisp_Object font; | |
1374 | int pixel_size; | |
1375 | char *name; | |
1376 | int nbytes; | |
1377 | { | |
ec6fe57c KH |
1378 | Lisp_Object val; |
1379 | int point_size; | |
1380 | int dpi, spacing, scalable; | |
1381 | int i, len = 1; | |
ef18374f | 1382 | char *p; |
a9262bb8 | 1383 | Lisp_Object styles[3]; |
417a1b10 | 1384 | char *style_names[3] = { "weight", "slant", "width" }; |
ef18374f | 1385 | |
ec6fe57c KH |
1386 | val = AREF (font, FONT_FAMILY_INDEX); |
1387 | if (SYMBOLP (val) && ! NILP (val)) | |
1388 | len += SBYTES (SYMBOL_NAME (val)); | |
1389 | ||
1390 | val = AREF (font, FONT_SIZE_INDEX); | |
1391 | if (INTEGERP (val)) | |
ef18374f | 1392 | { |
ec6fe57c KH |
1393 | if (XINT (val) != 0) |
1394 | pixel_size = XINT (val); | |
1395 | point_size = -1; | |
1396 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1397 | } |
ec6fe57c | 1398 | else if (FLOATP (val)) |
ef18374f | 1399 | { |
ec6fe57c KH |
1400 | pixel_size = -1; |
1401 | point_size = (int) XFLOAT_DATA (val); | |
1402 | len += 11; /* for "-NUM" */ | |
ef18374f | 1403 | } |
ec6fe57c KH |
1404 | |
1405 | val = AREF (font, FONT_FOUNDRY_INDEX); | |
8e1ef8fd | 1406 | if (SYMBOLP (val) && ! NILP (val)) |
ef18374f | 1407 | /* ":foundry=NAME" */ |
ec6fe57c KH |
1408 | len += 9 + SBYTES (SYMBOL_NAME (val)); |
1409 | ||
a9262bb8 KH |
1410 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) |
1411 | { | |
1412 | val = AREF (font, i); | |
1413 | if (INTEGERP (val)) | |
1414 | { | |
1415 | val = prop_numeric_to_name (i, XINT (val)); | |
1416 | len += (strlen (style_names[i - FONT_WEIGHT_INDEX]) | |
1417 | + 2 + SBYTES (SYMBOL_NAME (val))); /* :xxx=NAME */ | |
1418 | } | |
1419 | styles[i - FONT_WEIGHT_INDEX] = val; | |
1420 | } | |
ec6fe57c KH |
1421 | |
1422 | val = AREF (font, FONT_EXTRA_INDEX); | |
1423 | if (FONT_ENTITY_P (font) | |
1424 | && EQ (AREF (font, FONT_TYPE_INDEX), Qx)) | |
1425 | { | |
1426 | char *p; | |
1427 | ||
1428 | /* VAL is a symbol of name `RESX-RESY-SPACING-AVWIDTH'. */ | |
1429 | p = (char *) SDATA (SYMBOL_NAME (val)); | |
1430 | dpi = atoi (p); | |
1431 | for (p++; *p != '-'; p++); /* skip RESX */ | |
1432 | for (p++; *p != '-'; p++); /* skip RESY */ | |
1433 | spacing = (*p == 'c' ? FONT_SPACING_CHARCELL | |
1434 | : *p == 'm' ? FONT_SPACING_MONO | |
1435 | : FONT_SPACING_PROPORTIONAL); | |
1436 | for (p++; *p != '-'; p++); /* skip SPACING */ | |
1437 | scalable = (atoi (p) == 0); | |
1438 | /* The longest pattern is ":dpi=NUM:scalable=False:spacing=100" */ | |
1439 | len += 42; | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | Lisp_Object elt; | |
1444 | ||
1445 | dpi = spacing = scalable = -1; | |
1446 | elt = assq_no_quit (QCdpi, val); | |
1447 | if (CONSP (elt)) | |
1448 | dpi = XINT (XCDR (elt)), len += 15; /* for ":dpi=NUM" */ | |
1449 | elt = assq_no_quit (QCspacing, val); | |
1450 | if (CONSP (elt)) | |
1451 | spacing = XINT (XCDR (elt)), len += 12; /* for ":spacing=100" */ | |
1452 | elt = assq_no_quit (QCscalable, val); | |
1453 | if (CONSP (elt)) | |
1454 | scalable = ! NILP (XCDR (elt)), len += 15; /* for ":scalable=False" */ | |
1455 | } | |
1456 | ||
ef18374f KH |
1457 | if (len > nbytes) |
1458 | return -1; | |
1459 | p = name; | |
1460 | if (! NILP (AREF (font, FONT_FAMILY_INDEX))) | |
a9262bb8 KH |
1461 | p += sprintf(p, "%s", |
1462 | SDATA (SYMBOL_NAME (AREF (font, FONT_FAMILY_INDEX)))); | |
ec6fe57c KH |
1463 | if (point_size > 0) |
1464 | { | |
1465 | if (p == name) | |
1466 | p += sprintf (p, "%d", point_size); | |
1467 | else | |
1468 | p += sprintf (p, "-%d", point_size); | |
1469 | } | |
ef18374f KH |
1470 | else if (pixel_size > 0) |
1471 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
a9262bb8 KH |
1472 | if (SYMBOLP (AREF (font, FONT_FOUNDRY_INDEX)) |
1473 | && ! NILP (AREF (font, FONT_FOUNDRY_INDEX))) | |
1474 | p += sprintf (p, ":foundry=%s", | |
1475 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1476 | for (i = 0; i < 3; i++) | |
f73891b0 | 1477 | if (SYMBOLP (styles[i]) && ! NILP (styles [i])) |
a9262bb8 KH |
1478 | p += sprintf (p, ":%s=%s", style_names[i], |
1479 | SDATA (SYMBOL_NAME (styles [i]))); | |
ec6fe57c KH |
1480 | if (dpi >= 0) |
1481 | p += sprintf (p, ":dpi=%d", dpi); | |
1482 | if (spacing >= 0) | |
1483 | p += sprintf (p, ":spacing=%d", spacing); | |
1484 | if (scalable > 0) | |
1485 | p += sprintf (p, ":scalable=True"); | |
1486 | else if (scalable == 0) | |
1487 | p += sprintf (p, ":scalable=False"); | |
ef18374f KH |
1488 | return (p - name); |
1489 | } | |
1490 | ||
1491 | /* Parse NAME (null terminated) and store information in FONT | |
1492 | (font-spec or font-entity). If NAME is successfully parsed, return | |
ec6fe57c | 1493 | 0. Otherwise return -1. |
ef18374f KH |
1494 | |
1495 | If NAME is XLFD and FONT is a font-entity, store | |
ec6fe57c KH |
1496 | RESX-RESY-SPACING-AVWIDTH information as a symbol in |
1497 | FONT_EXTRA_INDEX. */ | |
ef18374f KH |
1498 | |
1499 | static int | |
ec6fe57c | 1500 | font_parse_name (name, font) |
ef18374f KH |
1501 | char *name; |
1502 | Lisp_Object font; | |
ef18374f KH |
1503 | { |
1504 | if (name[0] == '-' || index (name, '*')) | |
e950d6f1 | 1505 | return font_parse_xlfd (name, font); |
ec6fe57c | 1506 | return font_parse_fcname (name, font); |
ef18374f KH |
1507 | } |
1508 | ||
45eb10fb KH |
1509 | /* Merge old style font specification (either a font name NAME or a |
1510 | combination of a family name FAMILY and a registry name REGISTRY | |
1511 | into the font specification SPEC. */ | |
1512 | ||
c2f5bfd6 KH |
1513 | void |
1514 | font_merge_old_spec (name, family, registry, spec) | |
1515 | Lisp_Object name, family, registry, spec; | |
1516 | { | |
1517 | if (STRINGP (name)) | |
1518 | { | |
ec6fe57c | 1519 | if (font_parse_xlfd ((char *) SDATA (name), spec) < 0) |
c2f5bfd6 KH |
1520 | { |
1521 | Lisp_Object extra = Fcons (Fcons (QCname, name), Qnil); | |
1522 | ||
1523 | ASET (spec, FONT_EXTRA_INDEX, extra); | |
1524 | } | |
1525 | } | |
1526 | else | |
1527 | { | |
1528 | if (! NILP (family)) | |
1529 | { | |
1530 | int len; | |
1531 | char *p0, *p1; | |
1532 | ||
1533 | xassert (STRINGP (family)); | |
1534 | len = SBYTES (family); | |
1535 | p0 = (char *) SDATA (family); | |
1536 | p1 = index (p0, '-'); | |
1537 | if (p1) | |
1538 | { | |
0c363472 KH |
1539 | if ((*p0 != '*' || p1 - p0 > 1) |
1540 | && NILP (AREF (spec, FONT_FOUNDRY_INDEX))) | |
c2f5bfd6 KH |
1541 | ASET (spec, FONT_FOUNDRY_INDEX, |
1542 | intern_downcase (p0, p1 - p0)); | |
1543 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
1544 | ASET (spec, FONT_FAMILY_INDEX, | |
1545 | intern_downcase (p1 + 1, len - (p1 + 1 - p0))); | |
1546 | } | |
1547 | else if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
1548 | ASET (spec, FONT_FAMILY_INDEX, intern_downcase (p0, len)); | |
1549 | } | |
1550 | if (! NILP (registry) | |
1551 | && NILP (AREF (spec, FONT_REGISTRY_INDEX))) | |
1552 | ASET (spec, FONT_REGISTRY_INDEX, | |
1553 | intern_downcase ((char *) SDATA (registry), SBYTES (registry))); | |
1554 | } | |
1555 | } | |
1556 | ||
45eb10fb KH |
1557 | \f |
1558 | /* This part (through the next ^L) is still experimental and never | |
1559 | tested. We may drastically change codes. */ | |
10d16101 | 1560 | |
45eb10fb | 1561 | /* OTF handler */ |
10d16101 | 1562 | |
e950d6f1 KH |
1563 | #define LGSTRING_HEADER_SIZE 6 |
1564 | #define LGSTRING_GLYPH_SIZE 8 | |
1565 | ||
1566 | static int | |
1567 | check_gstring (gstring) | |
1568 | Lisp_Object gstring; | |
1569 | { | |
1570 | Lisp_Object val; | |
1571 | int i, j; | |
1572 | ||
1573 | CHECK_VECTOR (gstring); | |
1574 | val = AREF (gstring, 0); | |
1575 | CHECK_VECTOR (val); | |
1576 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1577 | goto err; | |
1578 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
1579 | if (! NILP (LGSTRING_LBEARING (gstring))) | |
1580 | CHECK_NUMBER (LGSTRING_LBEARING (gstring)); | |
1581 | if (! NILP (LGSTRING_RBEARING (gstring))) | |
1582 | CHECK_NUMBER (LGSTRING_RBEARING (gstring)); | |
1583 | if (! NILP (LGSTRING_WIDTH (gstring))) | |
1584 | CHECK_NATNUM (LGSTRING_WIDTH (gstring)); | |
1585 | if (! NILP (LGSTRING_ASCENT (gstring))) | |
1586 | CHECK_NUMBER (LGSTRING_ASCENT (gstring)); | |
1587 | if (! NILP (LGSTRING_DESCENT (gstring))) | |
1588 | CHECK_NUMBER (LGSTRING_DESCENT(gstring)); | |
1589 | ||
1590 | for (i = 0; i < LGSTRING_LENGTH (gstring); i++) | |
1591 | { | |
1592 | val = LGSTRING_GLYPH (gstring, i); | |
1593 | CHECK_VECTOR (val); | |
1594 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1595 | goto err; | |
1596 | if (NILP (LGLYPH_CHAR (val))) | |
1597 | break; | |
1598 | CHECK_NATNUM (LGLYPH_FROM (val)); | |
1599 | CHECK_NATNUM (LGLYPH_TO (val)); | |
1600 | CHECK_CHARACTER (LGLYPH_CHAR (val)); | |
1601 | if (! NILP (LGLYPH_CODE (val))) | |
1602 | CHECK_NATNUM (LGLYPH_CODE (val)); | |
1603 | if (! NILP (LGLYPH_WIDTH (val))) | |
1604 | CHECK_NATNUM (LGLYPH_WIDTH (val)); | |
1605 | if (! NILP (LGLYPH_ADJUSTMENT (val))) | |
1606 | { | |
1607 | val = LGLYPH_ADJUSTMENT (val); | |
1608 | CHECK_VECTOR (val); | |
1609 | if (ASIZE (val) < 3) | |
1610 | goto err; | |
1611 | for (j = 0; j < 3; j++) | |
1612 | CHECK_NUMBER (AREF (val, j)); | |
1613 | } | |
1614 | } | |
1615 | return i; | |
1616 | err: | |
1617 | error ("Invalid glyph-string format"); | |
1618 | return -1; | |
1619 | } | |
1620 | ||
cf385d93 KH |
1621 | static void |
1622 | check_otf_features (otf_features) | |
1623 | Lisp_Object otf_features; | |
1624 | { | |
1625 | Lisp_Object val, elt; | |
1626 | ||
1627 | CHECK_CONS (otf_features); | |
1628 | CHECK_SYMBOL (XCAR (otf_features)); | |
1629 | otf_features = XCDR (otf_features); | |
1630 | CHECK_CONS (otf_features); | |
1631 | CHECK_SYMBOL (XCAR (otf_features)); | |
1632 | otf_features = XCDR (otf_features); | |
1633 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1634 | { | |
1635 | CHECK_SYMBOL (Fcar (val)); | |
1636 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1637 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1638 | } | |
1639 | otf_features = XCDR (otf_features); | |
1640 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1641 | { | |
1642 | CHECK_SYMBOL (Fcar (val)); | |
1643 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1644 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1645 | } | |
1646 | } | |
1647 | ||
c2f5bfd6 KH |
1648 | #ifdef HAVE_LIBOTF |
1649 | #include <otf.h> | |
1650 | ||
733fd013 | 1651 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1652 | |
1653 | static Lisp_Object | |
1654 | otf_tag_symbol (tag) | |
1655 | OTF_Tag tag; | |
1656 | { | |
1657 | char name[5]; | |
1658 | ||
1659 | OTF_tag_name (tag, name); | |
1660 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1661 | } | |
1662 | ||
1663 | static OTF * | |
1664 | otf_open (entity, file) | |
1665 | Lisp_Object entity; | |
1666 | char *file; | |
1667 | { | |
733fd013 KH |
1668 | Lisp_Object val = Fassoc (entity, otf_list); |
1669 | OTF *otf; | |
1670 | ||
1671 | if (! NILP (val)) | |
1672 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1673 | else | |
c2f5bfd6 | 1674 | { |
733fd013 KH |
1675 | otf = file ? OTF_open (file) : NULL; |
1676 | val = make_save_value (otf, 0); | |
1677 | otf_list = Fcons (Fcons (entity, val), otf_list); | |
c2f5bfd6 | 1678 | } |
733fd013 | 1679 | return otf; |
c2f5bfd6 KH |
1680 | } |
1681 | ||
1682 | ||
1683 | /* Return a list describing which scripts/languages FONT supports by | |
1684 | which GSUB/GPOS features of OpenType tables. See the comment of | |
1685 | (sturct font_driver).otf_capability. */ | |
1686 | ||
1687 | Lisp_Object | |
1688 | font_otf_capability (font) | |
1689 | struct font *font; | |
1690 | { | |
1691 | OTF *otf; | |
1692 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1693 | int i; | |
1694 | ||
1695 | otf = otf_open (font->entity, font->file_name); | |
1696 | if (! otf) | |
1697 | return Qnil; | |
1698 | for (i = 0; i < 2; i++) | |
1699 | { | |
1700 | OTF_GSUB_GPOS *gsub_gpos; | |
1701 | Lisp_Object script_list = Qnil; | |
1702 | int j; | |
1703 | ||
1704 | if (OTF_get_features (otf, i == 0) < 0) | |
1705 | continue; | |
1706 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1707 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1708 | { | |
1709 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1710 | Lisp_Object langsys_list = Qnil; | |
1711 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1712 | int k; | |
1713 | ||
1714 | for (k = script->LangSysCount; k >= 0; k--) | |
1715 | { | |
1716 | OTF_LangSys *langsys; | |
1717 | Lisp_Object feature_list = Qnil; | |
1718 | Lisp_Object langsys_tag; | |
1719 | int l; | |
1720 | ||
e80e09b4 | 1721 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1722 | { |
1723 | langsys = &script->DefaultLangSys; | |
1724 | langsys_tag = Qnil; | |
1725 | } | |
1726 | else | |
1727 | { | |
1728 | langsys = script->LangSys + k; | |
1729 | langsys_tag | |
1730 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1731 | } | |
e80e09b4 | 1732 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1733 | { |
1734 | OTF_Feature *feature | |
1735 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1736 | Lisp_Object feature_tag | |
1737 | = otf_tag_symbol (feature->FeatureTag); | |
1738 | ||
1739 | feature_list = Fcons (feature_tag, feature_list); | |
1740 | } | |
1741 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1742 | langsys_list); | |
1743 | } | |
1744 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1745 | script_list); | |
1746 | } | |
1747 | ||
1748 | if (i == 0) | |
1749 | XSETCAR (capability, script_list); | |
1750 | else | |
1751 | XSETCDR (capability, script_list); | |
1752 | } | |
1753 | ||
1754 | return capability; | |
1755 | } | |
1756 | ||
733fd013 KH |
1757 | /* Parse OTF features in SPEC and write a proper features spec string |
1758 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1759 | assured that the sufficient memory has already allocated for | |
1760 | FEATURES. */ | |
1761 | ||
e80e09b4 | 1762 | static void |
733fd013 | 1763 | generate_otf_features (spec, features) |
c2f5bfd6 | 1764 | Lisp_Object spec; |
733fd013 | 1765 | char *features; |
c2f5bfd6 KH |
1766 | { |
1767 | Lisp_Object val; | |
e80e09b4 | 1768 | char *p, *pend; |
c2f5bfd6 KH |
1769 | int asterisk; |
1770 | ||
733fd013 | 1771 | p = features; |
e80e09b4 | 1772 | *p = '\0'; |
c2f5bfd6 KH |
1773 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1774 | { | |
1775 | val = XCAR (spec); | |
e80e09b4 KH |
1776 | CHECK_SYMBOL (val); |
1777 | if (p > features) | |
733fd013 | 1778 | *p++ = ','; |
c2f5bfd6 KH |
1779 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1780 | { | |
1781 | asterisk = 1; | |
e80e09b4 | 1782 | *p++ = '*'; |
c2f5bfd6 KH |
1783 | } |
1784 | else if (! asterisk) | |
e80e09b4 KH |
1785 | { |
1786 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1787 | p += sprintf (p, "%s", SDATA (val)); |
1788 | } | |
c2f5bfd6 | 1789 | else |
e80e09b4 KH |
1790 | { |
1791 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1792 | p += sprintf (p, "~%s", SDATA (val)); |
1793 | } | |
c2f5bfd6 | 1794 | } |
e80e09b4 KH |
1795 | if (CONSP (spec)) |
1796 | error ("OTF spec too long"); | |
1797 | } | |
1798 | ||
c2f5bfd6 | 1799 | |
733fd013 KH |
1800 | Lisp_Object |
1801 | font_otf_DeviceTable (device_table) | |
1802 | OTF_DeviceTable *device_table; | |
1803 | { | |
1804 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1805 | ||
1806 | return Fcons (make_number (len), | |
1807 | make_unibyte_string (device_table->DeltaValue, len)); | |
1808 | } | |
1809 | ||
1810 | Lisp_Object | |
1811 | font_otf_ValueRecord (value_format, value_record) | |
1812 | int value_format; | |
1813 | OTF_ValueRecord *value_record; | |
1814 | { | |
1815 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1816 | ||
1817 | if (value_format & OTF_XPlacement) | |
1818 | ASET (val, 0, value_record->XPlacement); | |
1819 | if (value_format & OTF_YPlacement) | |
1820 | ASET (val, 1, value_record->YPlacement); | |
1821 | if (value_format & OTF_XAdvance) | |
1822 | ASET (val, 2, value_record->XAdvance); | |
1823 | if (value_format & OTF_YAdvance) | |
1824 | ASET (val, 3, value_record->YAdvance); | |
1825 | if (value_format & OTF_XPlaDevice) | |
1826 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
1827 | if (value_format & OTF_YPlaDevice) | |
1828 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
1829 | if (value_format & OTF_XAdvDevice) | |
1830 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
1831 | if (value_format & OTF_YAdvDevice) | |
1832 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
1833 | return val; | |
1834 | } | |
1835 | ||
1836 | Lisp_Object | |
1837 | font_otf_Anchor (anchor) | |
1838 | OTF_Anchor *anchor; | |
1839 | { | |
1840 | Lisp_Object val; | |
1841 | ||
1842 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
1843 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
1844 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
1845 | if (anchor->AnchorFormat == 2) | |
1846 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
1847 | else | |
1848 | { | |
1849 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
1850 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
1851 | } | |
1852 | return val; | |
1853 | } | |
1854 | ||
c2f5bfd6 KH |
1855 | #endif /* HAVE_LIBOTF */ |
1856 | ||
e80e09b4 KH |
1857 | /* G-string (glyph string) handler */ |
1858 | ||
1859 | /* G-string is a vector of the form [HEADER GLYPH ...]. | |
1860 | See the docstring of `font-make-gstring' for more detail. */ | |
c2f5bfd6 KH |
1861 | |
1862 | struct font * | |
1701724c | 1863 | font_prepare_composition (cmp, f) |
c2f5bfd6 | 1864 | struct composition *cmp; |
1701724c | 1865 | FRAME_PTR f; |
c2f5bfd6 KH |
1866 | { |
1867 | Lisp_Object gstring | |
1868 | = AREF (XHASH_TABLE (composition_hash_table)->key_and_value, | |
1869 | cmp->hash_index * 2); | |
c2f5bfd6 | 1870 | |
1701724c KH |
1871 | cmp->font = XSAVE_VALUE (LGSTRING_FONT (gstring))->pointer; |
1872 | cmp->glyph_len = LGSTRING_LENGTH (gstring); | |
1873 | cmp->pixel_width = LGSTRING_WIDTH (gstring); | |
1874 | cmp->lbearing = LGSTRING_LBEARING (gstring); | |
1875 | cmp->rbearing = LGSTRING_RBEARING (gstring); | |
1876 | cmp->ascent = LGSTRING_ASCENT (gstring); | |
1877 | cmp->descent = LGSTRING_DESCENT (gstring); | |
1878 | cmp->width = cmp->pixel_width / FRAME_COLUMN_WIDTH (f); | |
1879 | if (cmp->width == 0) | |
1880 | cmp->width = 1; | |
c2f5bfd6 | 1881 | |
1701724c | 1882 | return cmp->font; |
c2f5bfd6 KH |
1883 | } |
1884 | ||
c2f5bfd6 KH |
1885 | \f |
1886 | /* Font sorting */ | |
1887 | ||
9331887d | 1888 | static unsigned font_score P_ ((Lisp_Object, Lisp_Object *)); |
c2f5bfd6 KH |
1889 | static int font_compare P_ ((const void *, const void *)); |
1890 | static Lisp_Object font_sort_entites P_ ((Lisp_Object, Lisp_Object, | |
1891 | Lisp_Object, Lisp_Object)); | |
1892 | ||
1893 | /* We sort fonts by scoring each of them against a specified | |
1894 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
1895 | the value is, the closer the font is to the font-spec. | |
1896 | ||
45eb10fb | 1897 | Each 1-bit of the highest 4 bits of the score is used for atomic |
c2f5bfd6 KH |
1898 | properties FOUNDRY, FAMILY, ADSTYLE, and REGISTRY. |
1899 | ||
1900 | Each 7-bit in the lowest 28 bits are used for numeric properties | |
1901 | WEIGHT, SLANT, WIDTH, and SIZE. */ | |
1902 | ||
1903 | /* How many bits to shift to store the difference value of each font | |
1904 | property in a score. */ | |
1905 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; | |
1906 | ||
9331887d KH |
1907 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
1908 | The return value indicates how different ENTITY is compared with | |
1909 | SPEC_PROP. */ | |
c2f5bfd6 KH |
1910 | |
1911 | static unsigned | |
9331887d KH |
1912 | font_score (entity, spec_prop) |
1913 | Lisp_Object entity, *spec_prop; | |
c2f5bfd6 KH |
1914 | { |
1915 | unsigned score = 0; | |
1916 | int i; | |
9331887d | 1917 | /* Score four atomic fields. Maximum difference is 1. */ |
c2f5bfd6 | 1918 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
9331887d KH |
1919 | if (! NILP (spec_prop[i]) |
1920 | && ! EQ (spec_prop[i], AREF (entity, i))) | |
1921 | score |= 1 << sort_shift_bits[i]; | |
c2f5bfd6 | 1922 | |
9331887d | 1923 | /* Score four numeric fields. Maximum difference is 127. */ |
c2f5bfd6 KH |
1924 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) |
1925 | { | |
c2f5bfd6 | 1926 | Lisp_Object entity_val = AREF (entity, i); |
9ba6fd41 | 1927 | Lisp_Object spec_val = spec_prop[i]; |
c2f5bfd6 | 1928 | |
9ba6fd41 JR |
1929 | /* If weight and slant are unspecified, score normal lower (low wins). */ |
1930 | if (NILP (spec_val)) | |
1931 | { | |
1932 | if (i == FONT_WEIGHT_INDEX || i == FONT_SLANT_INDEX) | |
1933 | spec_val = prop_name_to_numeric (i, build_string ("normal")); | |
1934 | } | |
1935 | ||
1936 | if (! NILP (spec_val) && ! EQ (spec_val, entity_val)) | |
c2f5bfd6 KH |
1937 | { |
1938 | if (! INTEGERP (entity_val)) | |
1939 | score |= 127 << sort_shift_bits[i]; | |
9331887d | 1940 | else |
c2f5bfd6 | 1941 | { |
9ba6fd41 | 1942 | int diff = XINT (entity_val) - XINT (spec_val); |
c2f5bfd6 KH |
1943 | |
1944 | if (diff < 0) | |
1945 | diff = - diff; | |
9331887d KH |
1946 | if (i == FONT_SIZE_INDEX) |
1947 | { | |
1948 | if (XINT (entity_val) > 0 | |
1949 | && diff > FONT_PIXEL_SIZE_QUANTUM) | |
1950 | score |= min (diff, 127) << sort_shift_bits[i]; | |
1951 | } | |
9ba6fd41 JR |
1952 | #ifdef WINDOWSNT |
1953 | else if (i == FONT_WEIGHT_INDEX) | |
1954 | { | |
1955 | /* Windows uses a much wider range for weight (100-900) | |
1956 | compared with freetype (0-210), so scale down the | |
1957 | difference. A more general way of doing this | |
1958 | would be to look up the values of regular and bold | |
1959 | and/or light and calculate the scale factor from them, | |
1960 | but the lookup would be expensive, and if only Windows | |
1961 | needs it, not worth the effort. */ | |
1962 | score |= min (diff / 4, 127) << sort_shift_bits[i]; | |
1963 | } | |
1964 | #endif | |
9331887d KH |
1965 | else |
1966 | score |= min (diff, 127) << sort_shift_bits[i]; | |
c2f5bfd6 KH |
1967 | } |
1968 | } | |
1969 | } | |
1970 | ||
1971 | return score; | |
1972 | } | |
1973 | ||
1974 | ||
1975 | /* The comparison function for qsort. */ | |
1976 | ||
1977 | static int | |
1978 | font_compare (d1, d2) | |
1979 | const void *d1, *d2; | |
1980 | { | |
1981 | return (*(unsigned *) d1 < *(unsigned *) d2 | |
1982 | ? -1 : *(unsigned *) d1 > *(unsigned *) d2); | |
1983 | } | |
1984 | ||
1985 | ||
1986 | /* The structure for elements being sorted by qsort. */ | |
1987 | struct font_sort_data | |
1988 | { | |
1989 | unsigned score; | |
1990 | Lisp_Object entity; | |
1991 | }; | |
1992 | ||
1993 | ||
1994 | /* Sort font-entities in vector VEC by closeness to font-spec PREFER. | |
1995 | If PREFER specifies a point-size, calculate the corresponding | |
9331887d KH |
1996 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
1997 | of FRAME before sorting. If SPEC is not nil, it is a font-spec to | |
1998 | get the font-entities in VEC. */ | |
c2f5bfd6 KH |
1999 | |
2000 | static Lisp_Object | |
2001 | font_sort_entites (vec, prefer, frame, spec) | |
2002 | Lisp_Object vec, prefer, frame, spec; | |
2003 | { | |
9331887d | 2004 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
c2f5bfd6 KH |
2005 | int len, i; |
2006 | struct font_sort_data *data; | |
c2f5bfd6 KH |
2007 | USE_SAFE_ALLOCA; |
2008 | ||
2009 | len = ASIZE (vec); | |
2010 | if (len <= 1) | |
2011 | return vec; | |
2012 | ||
9331887d KH |
2013 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_SIZE_INDEX; i++) |
2014 | prefer_prop[i] = AREF (prefer, i); | |
c2f5bfd6 KH |
2015 | |
2016 | if (! NILP (spec)) | |
2017 | { | |
2018 | /* As it is assured that all fonts in VEC match with SPEC, we | |
2019 | should ignore properties specified in SPEC. So, set the | |
9331887d | 2020 | corresponding properties in PREFER_PROP to nil. */ |
c2f5bfd6 | 2021 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) |
9331887d KH |
2022 | if (! NILP (AREF (spec, i))) |
2023 | prefer_prop[i++] = Qnil; | |
c2f5bfd6 KH |
2024 | } |
2025 | ||
9331887d KH |
2026 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2027 | prefer_prop[FONT_SIZE_INDEX] | |
2028 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2029 | ||
c2f5bfd6 KH |
2030 | /* Scoring and sorting. */ |
2031 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * len); | |
2032 | for (i = 0; i < len; i++) | |
2033 | { | |
2034 | data[i].entity = AREF (vec, i); | |
9331887d | 2035 | data[i].score = font_score (data[i].entity, prefer_prop); |
c2f5bfd6 KH |
2036 | } |
2037 | qsort (data, len, sizeof *data, font_compare); | |
2038 | for (i = 0; i < len; i++) | |
2039 | ASET (vec, i, data[i].entity); | |
2040 | SAFE_FREE (); | |
2041 | ||
2042 | return vec; | |
2043 | } | |
2044 | ||
2045 | \f | |
2046 | /* API of Font Service Layer. */ | |
2047 | ||
45eb10fb KH |
2048 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2049 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2050 | function with font_sort_order after setting up it. */ | |
2051 | ||
c2f5bfd6 KH |
2052 | void |
2053 | font_update_sort_order (order) | |
2054 | int *order; | |
2055 | { | |
2056 | int i, shift_bits = 21; | |
2057 | ||
2058 | for (i = 0; i < 4; i++, shift_bits -= 7) | |
2059 | { | |
2060 | int xlfd_idx = order[i]; | |
2061 | ||
2062 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2063 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2064 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2065 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2066 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2067 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2068 | else | |
2069 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2070 | } | |
2071 | } | |
2072 | ||
45eb10fb KH |
2073 | |
2074 | /* Return weight property of FONT as symbol. */ | |
2075 | ||
c2f5bfd6 KH |
2076 | Lisp_Object |
2077 | font_symbolic_weight (font) | |
2078 | Lisp_Object font; | |
2079 | { | |
2080 | Lisp_Object weight = AREF (font, FONT_WEIGHT_INDEX); | |
2081 | ||
2082 | if (INTEGERP (weight)) | |
2083 | weight = prop_numeric_to_name (FONT_WEIGHT_INDEX, XINT (weight)); | |
2084 | return weight; | |
2085 | } | |
2086 | ||
45eb10fb KH |
2087 | |
2088 | /* Return slant property of FONT as symbol. */ | |
2089 | ||
c2f5bfd6 KH |
2090 | Lisp_Object |
2091 | font_symbolic_slant (font) | |
2092 | Lisp_Object font; | |
2093 | { | |
2094 | Lisp_Object slant = AREF (font, FONT_SLANT_INDEX); | |
2095 | ||
2096 | if (INTEGERP (slant)) | |
2097 | slant = prop_numeric_to_name (FONT_SLANT_INDEX, XINT (slant)); | |
2098 | return slant; | |
2099 | } | |
2100 | ||
45eb10fb KH |
2101 | |
2102 | /* Return width property of FONT as symbol. */ | |
2103 | ||
c2f5bfd6 KH |
2104 | Lisp_Object |
2105 | font_symbolic_width (font) | |
2106 | Lisp_Object font; | |
2107 | { | |
2108 | Lisp_Object width = AREF (font, FONT_WIDTH_INDEX); | |
2109 | ||
2110 | if (INTEGERP (width)) | |
2111 | width = prop_numeric_to_name (FONT_WIDTH_INDEX, XINT (width)); | |
2112 | return width; | |
2113 | } | |
2114 | ||
45eb10fb KH |
2115 | |
2116 | /* Check if ENTITY matches with the font specification SPEC. */ | |
2117 | ||
ef18374f KH |
2118 | int |
2119 | font_match_p (spec, entity) | |
2120 | Lisp_Object spec, entity; | |
2121 | { | |
2122 | int i; | |
2123 | ||
2124 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2125 | if (! NILP (AREF (spec, i)) | |
2126 | && ! EQ (AREF (spec, i), AREF (entity, i))) | |
2127 | return 0; | |
2128 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX)) | |
2129 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0 | |
2130 | && (XINT (AREF (spec, FONT_SIZE_INDEX)) | |
2131 | != XINT (AREF (entity, FONT_SIZE_INDEX)))) | |
2132 | return 0; | |
2133 | return 1; | |
2134 | } | |
2135 | ||
45eb10fb KH |
2136 | |
2137 | /* Return a lispy font object corresponding to FONT. */ | |
2138 | ||
c2f5bfd6 KH |
2139 | Lisp_Object |
2140 | font_find_object (font) | |
2141 | struct font *font; | |
2142 | { | |
2143 | Lisp_Object tail, elt; | |
2144 | ||
2145 | for (tail = AREF (font->entity, FONT_OBJLIST_INDEX); CONSP (tail); | |
2146 | tail = XCDR (tail)) | |
2147 | { | |
2148 | elt = XCAR (tail); | |
2149 | if (font == XSAVE_VALUE (elt)->pointer | |
2150 | && XSAVE_VALUE (elt)->integer > 0) | |
2151 | return elt; | |
2152 | } | |
2153 | abort (); | |
2154 | return Qnil; | |
2155 | } | |
2156 | ||
ca4da08a KH |
2157 | \f |
2158 | /* Font cache | |
2159 | ||
2160 | Each font backend has the callback function get_cache, and it | |
2161 | returns a cons cell of which cdr part can be freely used for | |
2162 | caching fonts. The cons cell may be shared by multiple frames | |
2163 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2164 | ||
2165 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2166 | ||
2167 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2168 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2169 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2170 | ||
2171 | static void font_prepare_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2172 | static void font_finish_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2173 | static Lisp_Object font_get_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2174 | static void font_clear_cache P_ ((FRAME_PTR, Lisp_Object, | |
2175 | struct font_driver *)); | |
2176 | ||
2177 | static void | |
2178 | font_prepare_cache (f, driver) | |
2179 | FRAME_PTR f; | |
2180 | struct font_driver *driver; | |
2181 | { | |
2182 | Lisp_Object cache, val; | |
2183 | ||
2184 | cache = driver->get_cache (f); | |
2185 | val = XCDR (cache); | |
2186 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2187 | val = XCDR (val); | |
2188 | if (NILP (val)) | |
2189 | { | |
2190 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2191 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2192 | } | |
2193 | else | |
2194 | { | |
2195 | val = XCDR (XCAR (val)); | |
2196 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2197 | } | |
2198 | } | |
2199 | ||
2200 | static void | |
2201 | font_finish_cache (f, driver) | |
2202 | FRAME_PTR f; | |
2203 | struct font_driver *driver; | |
2204 | { | |
2205 | Lisp_Object cache, val, tmp; | |
2206 | ||
2207 | ||
2208 | cache = driver->get_cache (f); | |
2209 | val = XCDR (cache); | |
2210 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2211 | cache = val, val = XCDR (val); | |
2212 | xassert (! NILP (val)); | |
2213 | tmp = XCDR (XCAR (val)); | |
2214 | if (XINT (XCAR (tmp)) == 0) | |
2215 | { | |
2216 | font_clear_cache (f, XCAR (val), driver); | |
2217 | XSETCDR (cache, XCDR (val)); | |
2218 | } | |
2219 | else | |
2220 | { | |
2221 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); | |
2222 | } | |
2223 | } | |
2224 | ||
2225 | static Lisp_Object | |
2226 | font_get_cache (f, driver) | |
2227 | FRAME_PTR f; | |
2228 | struct font_driver *driver; | |
2229 | { | |
2230 | Lisp_Object val = driver->get_cache (f); | |
2231 | Lisp_Object type = driver->type; | |
2232 | ||
2233 | xassert (CONSP (val)); | |
2234 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); | |
2235 | xassert (CONSP (val)); | |
2236 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ | |
2237 | val = XCDR (XCAR (val)); | |
2238 | return val; | |
2239 | } | |
2240 | ||
2241 | static void | |
2242 | font_clear_cache (f, cache, driver) | |
2243 | FRAME_PTR f; | |
2244 | Lisp_Object cache; | |
2245 | struct font_driver *driver; | |
2246 | { | |
2247 | Lisp_Object tail, elt; | |
2248 | ||
2249 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ | |
2250 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2251 | { | |
2252 | elt = XCAR (tail); | |
2253 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
2254 | { | |
2255 | Lisp_Object vec = XCDR (elt); | |
2256 | int i; | |
2257 | ||
2258 | for (i = 0; i < ASIZE (vec); i++) | |
2259 | { | |
2260 | Lisp_Object entity = AREF (vec, i); | |
2261 | ||
2262 | if (EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
2263 | { | |
2264 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2265 | ||
2266 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2267 | { | |
2268 | Lisp_Object val = XCAR (objlist); | |
2269 | struct Lisp_Save_Value *p = XSAVE_VALUE (val); | |
2270 | struct font *font = p->pointer; | |
2271 | ||
2272 | xassert (font && driver == font->driver); | |
2273 | driver->close (f, font); | |
2274 | p->pointer = NULL; | |
2275 | p->integer = 0; | |
2276 | } | |
2277 | if (driver->free_entity) | |
2278 | driver->free_entity (entity); | |
2279 | } | |
2280 | } | |
2281 | } | |
2282 | } | |
2283 | XSETCDR (cache, Qnil); | |
2284 | } | |
2285 | \f | |
2286 | ||
c2f5bfd6 KH |
2287 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2288 | ||
45eb10fb | 2289 | |
c2f5bfd6 KH |
2290 | /* Return a vector of font-entities matching with SPEC on frame F. */ |
2291 | ||
2292 | static Lisp_Object | |
2293 | font_list_entities (frame, spec) | |
2294 | Lisp_Object frame, spec; | |
2295 | { | |
2296 | FRAME_PTR f = XFRAME (frame); | |
2297 | struct font_driver_list *driver_list = f->font_driver_list; | |
a9262bb8 | 2298 | Lisp_Object ftype, family, size, alternate_familes; |
c2f5bfd6 KH |
2299 | Lisp_Object *vec = alloca (sizeof (Lisp_Object) * num_font_drivers); |
2300 | int i; | |
2301 | ||
2302 | if (! vec) | |
2303 | return null_vector; | |
2304 | ||
2305 | family = AREF (spec, FONT_FAMILY_INDEX); | |
2306 | if (NILP (family)) | |
2307 | alternate_familes = Qnil; | |
2308 | else | |
2309 | { | |
2310 | if (NILP (font_family_alist) | |
2311 | && !NILP (Vface_alternative_font_family_alist)) | |
2312 | build_font_family_alist (); | |
2313 | alternate_familes = assq_no_quit (family, font_family_alist); | |
2314 | if (! NILP (alternate_familes)) | |
2315 | alternate_familes = XCDR (alternate_familes); | |
2316 | } | |
a9262bb8 KH |
2317 | size = AREF (spec, FONT_SIZE_INDEX); |
2318 | if (FLOATP (size)) | |
9331887d | 2319 | ASET (spec, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); |
a9262bb8 | 2320 | |
c2f5bfd6 KH |
2321 | xassert (ASIZE (spec) == FONT_SPEC_MAX); |
2322 | ftype = AREF (spec, FONT_TYPE_INDEX); | |
2323 | ||
2324 | for (i = 0; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
2325 | if (driver_list->on |
2326 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2327 | { |
ca4da08a | 2328 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2329 | Lisp_Object tail = alternate_familes; |
c2f5bfd6 | 2330 | |
c2f5bfd6 KH |
2331 | ASET (spec, FONT_TYPE_INDEX, driver_list->driver->type); |
2332 | ASET (spec, FONT_FAMILY_INDEX, family); | |
2333 | ||
2334 | while (1) | |
2335 | { | |
ca4da08a KH |
2336 | Lisp_Object val = assoc_no_quit (spec, XCDR (cache)); |
2337 | ||
c2f5bfd6 KH |
2338 | if (CONSP (val)) |
2339 | val = XCDR (val); | |
2340 | else | |
2341 | { | |
2342 | val = driver_list->driver->list (frame, spec); | |
2343 | if (VECTORP (val)) | |
2344 | XSETCDR (cache, Fcons (Fcons (Fcopy_sequence (spec), val), | |
2345 | XCDR (cache))); | |
2346 | } | |
2347 | if (VECTORP (val) && ASIZE (val) > 0) | |
2348 | { | |
2349 | vec[i++] = val; | |
2350 | break; | |
2351 | } | |
2352 | if (NILP (tail)) | |
2353 | break; | |
2354 | ASET (spec, FONT_FAMILY_INDEX, XCAR (tail)); | |
2355 | tail = XCDR (tail); | |
2356 | } | |
2357 | } | |
2358 | ASET (spec, FONT_TYPE_INDEX, ftype); | |
2359 | ASET (spec, FONT_FAMILY_INDEX, family); | |
a9262bb8 | 2360 | ASET (spec, FONT_SIZE_INDEX, size); |
c2f5bfd6 KH |
2361 | return (i > 0 ? Fvconcat (i, vec) : null_vector); |
2362 | } | |
2363 | ||
45eb10fb KH |
2364 | |
2365 | /* Return a font entity matching with SPEC on FRAME. */ | |
2366 | ||
e950d6f1 KH |
2367 | static Lisp_Object |
2368 | font_matching_entity (frame, spec) | |
2369 | Lisp_Object frame, spec; | |
2370 | { | |
2371 | FRAME_PTR f = XFRAME (frame); | |
2372 | struct font_driver_list *driver_list = f->font_driver_list; | |
2373 | Lisp_Object ftype, size, entity; | |
2374 | ||
2375 | ftype = AREF (spec, FONT_TYPE_INDEX); | |
2376 | size = AREF (spec, FONT_SIZE_INDEX); | |
2377 | if (FLOATP (size)) | |
2378 | ASET (spec, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
2379 | entity = Qnil; | |
2380 | for (; driver_list; driver_list = driver_list->next) | |
2381 | if (driver_list->on | |
2382 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2383 | { | |
ca4da08a | 2384 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7c8f6ffd | 2385 | Lisp_Object key; |
e950d6f1 | 2386 | |
e950d6f1 KH |
2387 | ASET (spec, FONT_TYPE_INDEX, driver_list->driver->type); |
2388 | key = Fcons (spec, Qnil); | |
2389 | entity = assoc_no_quit (key, XCDR (cache)); | |
2390 | if (CONSP (entity)) | |
2391 | entity = XCDR (entity); | |
2392 | else | |
2393 | { | |
2394 | entity = driver_list->driver->match (frame, spec); | |
2395 | if (! NILP (entity)) | |
2396 | { | |
2397 | XSETCAR (key, Fcopy_sequence (spec)); | |
2398 | XSETCDR (cache, Fcons (Fcons (key, entity), XCDR (cache))); | |
2399 | } | |
2400 | } | |
2401 | if (! NILP (entity)) | |
2402 | break; | |
2403 | } | |
2404 | ASET (spec, FONT_TYPE_INDEX, ftype); | |
2405 | ASET (spec, FONT_SIZE_INDEX, size); | |
2406 | return entity; | |
2407 | } | |
2408 | ||
c2f5bfd6 KH |
2409 | static int num_fonts; |
2410 | ||
45eb10fb KH |
2411 | |
2412 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2413 | opened font object. */ | |
2414 | ||
c2f5bfd6 KH |
2415 | static Lisp_Object |
2416 | font_open_entity (f, entity, pixel_size) | |
2417 | FRAME_PTR f; | |
2418 | Lisp_Object entity; | |
2419 | int pixel_size; | |
2420 | { | |
2421 | struct font_driver_list *driver_list; | |
2422 | Lisp_Object objlist, size, val; | |
2423 | struct font *font; | |
2424 | ||
2425 | size = AREF (entity, FONT_SIZE_INDEX); | |
2426 | xassert (NATNUMP (size)); | |
2427 | if (XINT (size) != 0) | |
2428 | pixel_size = XINT (size); | |
2429 | ||
2430 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); | |
2431 | objlist = XCDR (objlist)) | |
2432 | { | |
2433 | font = XSAVE_VALUE (XCAR (objlist))->pointer; | |
2434 | if (font->pixel_size == pixel_size) | |
2435 | { | |
2436 | XSAVE_VALUE (XCAR (objlist))->integer++; | |
2437 | return XCAR (objlist); | |
2438 | } | |
2439 | } | |
2440 | ||
2441 | xassert (FONT_ENTITY_P (entity)); | |
2442 | val = AREF (entity, FONT_TYPE_INDEX); | |
2443 | for (driver_list = f->font_driver_list; | |
2444 | driver_list && ! EQ (driver_list->driver->type, val); | |
2445 | driver_list = driver_list->next); | |
2446 | if (! driver_list) | |
2447 | return Qnil; | |
2448 | ||
2449 | font = driver_list->driver->open (f, entity, pixel_size); | |
2450 | if (! font) | |
2451 | return Qnil; | |
e80e09b4 KH |
2452 | font->scalable = XINT (size) == 0; |
2453 | ||
c2f5bfd6 KH |
2454 | val = make_save_value (font, 1); |
2455 | ASET (entity, FONT_OBJLIST_INDEX, | |
2456 | Fcons (val, AREF (entity, FONT_OBJLIST_INDEX))); | |
2457 | num_fonts++; | |
2458 | return val; | |
2459 | } | |
2460 | ||
45eb10fb KH |
2461 | |
2462 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2463 | ||
c2f5bfd6 KH |
2464 | void |
2465 | font_close_object (f, font_object) | |
2466 | FRAME_PTR f; | |
2467 | Lisp_Object font_object; | |
2468 | { | |
10d16101 KH |
2469 | struct font *font = XSAVE_VALUE (font_object)->pointer; |
2470 | Lisp_Object objlist; | |
c2f5bfd6 KH |
2471 | Lisp_Object tail, prev = Qnil; |
2472 | ||
10d16101 KH |
2473 | XSAVE_VALUE (font_object)->integer--; |
2474 | xassert (XSAVE_VALUE (font_object)->integer >= 0); | |
2475 | if (XSAVE_VALUE (font_object)->integer > 0) | |
2476 | return; | |
2477 | ||
2478 | objlist = AREF (font->entity, FONT_OBJLIST_INDEX); | |
c2f5bfd6 KH |
2479 | for (prev = Qnil, tail = objlist; CONSP (tail); |
2480 | prev = tail, tail = XCDR (tail)) | |
2481 | if (EQ (font_object, XCAR (tail))) | |
2482 | { | |
10d16101 KH |
2483 | if (font->driver->close) |
2484 | font->driver->close (f, font); | |
2485 | XSAVE_VALUE (font_object)->pointer = NULL; | |
2486 | if (NILP (prev)) | |
2487 | ASET (font->entity, FONT_OBJLIST_INDEX, XCDR (objlist)); | |
2488 | else | |
2489 | XSETCDR (prev, XCDR (objlist)); | |
2490 | return; | |
c2f5bfd6 | 2491 | } |
10d16101 | 2492 | abort (); |
c2f5bfd6 KH |
2493 | } |
2494 | ||
45eb10fb | 2495 | |
1701724c KH |
2496 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2497 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2498 | |
c2f5bfd6 | 2499 | int |
1b834a8d | 2500 | font_has_char (f, font, c) |
c2f5bfd6 | 2501 | FRAME_PTR f; |
1b834a8d | 2502 | Lisp_Object font; |
c2f5bfd6 KH |
2503 | int c; |
2504 | { | |
1b834a8d | 2505 | struct font *fontp; |
c2f5bfd6 | 2506 | |
1b834a8d KH |
2507 | if (FONT_ENTITY_P (font)) |
2508 | { | |
2509 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2510 | struct font_driver_list *driver_list; | |
2511 | ||
2512 | for (driver_list = f->font_driver_list; | |
2513 | driver_list && ! EQ (driver_list->driver->type, type); | |
2514 | driver_list = driver_list->next); | |
2515 | if (! driver_list) | |
2516 | return 0; | |
2517 | if (! driver_list->driver->has_char) | |
2518 | return -1; | |
2519 | return driver_list->driver->has_char (font, c); | |
2520 | } | |
2521 | ||
2522 | xassert (FONT_OBJECT_P (font)); | |
2523 | fontp = XSAVE_VALUE (font)->pointer; | |
2524 | ||
2525 | if (fontp->driver->has_char) | |
2526 | { | |
2527 | int result = fontp->driver->has_char (fontp->entity, c); | |
2528 | ||
2529 | if (result >= 0) | |
2530 | return result; | |
2531 | } | |
2532 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2533 | } |
2534 | ||
45eb10fb KH |
2535 | |
2536 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2537 | ||
c2f5bfd6 KH |
2538 | unsigned |
2539 | font_encode_char (font_object, c) | |
2540 | Lisp_Object font_object; | |
2541 | int c; | |
2542 | { | |
2543 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
2544 | ||
2545 | return font->driver->encode_char (font, c); | |
2546 | } | |
2547 | ||
45eb10fb KH |
2548 | |
2549 | /* Return the name of FONT_OBJECT. */ | |
2550 | ||
ef18374f | 2551 | Lisp_Object |
c2f5bfd6 KH |
2552 | font_get_name (font_object) |
2553 | Lisp_Object font_object; | |
2554 | { | |
2555 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
ef18374f KH |
2556 | char *name = (font->font.full_name ? font->font.full_name |
2557 | : font->font.name ? font->font.name | |
2558 | : NULL); | |
c2f5bfd6 | 2559 | |
ef18374f KH |
2560 | return (name ? make_unibyte_string (name, strlen (name)) : null_string); |
2561 | } | |
2562 | ||
45eb10fb KH |
2563 | |
2564 | /* Return the specification of FONT_OBJECT. */ | |
2565 | ||
ef18374f KH |
2566 | Lisp_Object |
2567 | font_get_spec (font_object) | |
2568 | Lisp_Object font_object; | |
2569 | { | |
2570 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
2571 | Lisp_Object spec = Ffont_spec (0, NULL); | |
2572 | int i; | |
2573 | ||
2574 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
2575 | ASET (spec, i, AREF (font->entity, i)); | |
2576 | ASET (spec, FONT_SIZE_INDEX, make_number (font->pixel_size)); | |
2577 | return spec; | |
c2f5bfd6 KH |
2578 | } |
2579 | ||
45eb10fb KH |
2580 | |
2581 | /* Return the frame on which FONT exists. FONT is a font object or a | |
2582 | font entity. */ | |
2583 | ||
c2f5bfd6 KH |
2584 | Lisp_Object |
2585 | font_get_frame (font) | |
2586 | Lisp_Object font; | |
2587 | { | |
2588 | if (FONT_OBJECT_P (font)) | |
2589 | font = ((struct font *) XSAVE_VALUE (font)->pointer)->entity; | |
2590 | xassert (FONT_ENTITY_P (font)); | |
2591 | return AREF (font, FONT_FRAME_INDEX); | |
2592 | } | |
2593 | ||
45eb10fb | 2594 | |
ef18374f | 2595 | /* Find a font entity best matching with LFACE. If SPEC is non-nil, |
1701724c KH |
2596 | the font must exactly match with it. C, if not negative, is a |
2597 | character that the entity must support. */ | |
c2f5bfd6 KH |
2598 | |
2599 | Lisp_Object | |
1701724c | 2600 | font_find_for_lface (f, lface, spec, c) |
c2f5bfd6 KH |
2601 | FRAME_PTR f; |
2602 | Lisp_Object *lface; | |
2603 | Lisp_Object spec; | |
1701724c | 2604 | int c; |
c2f5bfd6 | 2605 | { |
ef18374f | 2606 | Lisp_Object frame, entities; |
c2f5bfd6 | 2607 | int i; |
c2f5bfd6 | 2608 | |
fe5ddfbc | 2609 | XSETFRAME (frame, f); |
c2f5bfd6 | 2610 | |
fe5ddfbc | 2611 | if (NILP (spec)) |
1b834a8d | 2612 | { |
1701724c KH |
2613 | if (c >= 0x100) |
2614 | return Qnil; | |
fe5ddfbc KH |
2615 | for (i = 0; i < FONT_SPEC_MAX; i++) |
2616 | ASET (scratch_font_spec, i, Qnil); | |
2617 | ASET (scratch_font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
1b834a8d | 2618 | |
fe5ddfbc KH |
2619 | if (! NILP (lface[LFACE_FAMILY_INDEX])) |
2620 | font_merge_old_spec (Qnil, lface[LFACE_FAMILY_INDEX], Qnil, | |
2621 | scratch_font_spec); | |
2622 | entities = font_list_entities (frame, scratch_font_spec); | |
2623 | while (ASIZE (entities) == 0) | |
c2f5bfd6 | 2624 | { |
fe5ddfbc KH |
2625 | /* Try without FOUNDRY or FAMILY. */ |
2626 | if (! NILP (AREF (scratch_font_spec, FONT_FOUNDRY_INDEX))) | |
2627 | { | |
2628 | ASET (scratch_font_spec, FONT_FOUNDRY_INDEX, Qnil); | |
2629 | entities = font_list_entities (frame, scratch_font_spec); | |
2630 | } | |
2631 | else if (! NILP (AREF (scratch_font_spec, FONT_FAMILY_INDEX))) | |
2632 | { | |
2633 | ASET (scratch_font_spec, FONT_FAMILY_INDEX, Qnil); | |
2634 | entities = font_list_entities (frame, scratch_font_spec); | |
2635 | } | |
2636 | else | |
2637 | break; | |
c2f5bfd6 | 2638 | } |
fe5ddfbc KH |
2639 | } |
2640 | else | |
2641 | { | |
1701724c KH |
2642 | Lisp_Object registry = AREF (spec, FONT_REGISTRY_INDEX); |
2643 | ||
2644 | if (NILP (registry)) | |
2645 | registry = Qiso8859_1; | |
2646 | ||
2647 | if (c >= 0) | |
2648 | { | |
2649 | struct charset *repertory; | |
2650 | ||
2651 | if (font_registry_charsets (registry, NULL, &repertory) < 0) | |
2652 | return Qnil; | |
2653 | if (repertory) | |
2654 | { | |
2655 | if (ENCODE_CHAR (repertory, c) | |
2656 | == CHARSET_INVALID_CODE (repertory)) | |
2657 | return Qnil; | |
2658 | /* Any font of this registry support C. So, let's | |
2659 | suppress the further checking. */ | |
2660 | c = -1; | |
2661 | } | |
2662 | else if (c > MAX_UNICODE_CHAR) | |
2663 | return Qnil; | |
2664 | } | |
fe5ddfbc KH |
2665 | for (i = 0; i < FONT_SPEC_MAX; i++) |
2666 | ASET (scratch_font_spec, i, AREF (spec, i)); | |
1701724c | 2667 | ASET (scratch_font_spec, FONT_REGISTRY_INDEX, registry); |
fe5ddfbc | 2668 | entities = font_list_entities (frame, scratch_font_spec); |
c2f5bfd6 KH |
2669 | } |
2670 | ||
fe5ddfbc KH |
2671 | if (ASIZE (entities) == 0) |
2672 | return Qnil; | |
c2f5bfd6 KH |
2673 | if (ASIZE (entities) > 1) |
2674 | { | |
fe5ddfbc | 2675 | /* Sort fonts by properties specified in LFACE. */ |
ec6fe57c | 2676 | Lisp_Object prefer = scratch_font_prefer; |
9331887d | 2677 | double pt; |
ef18374f | 2678 | |
fe5ddfbc KH |
2679 | if (! NILP (lface[LFACE_FAMILY_INDEX])) |
2680 | font_merge_old_spec (Qnil, lface[LFACE_FAMILY_INDEX], Qnil, prefer); | |
ef18374f | 2681 | ASET (prefer, FONT_WEIGHT_INDEX, |
45eb10fb | 2682 | font_prop_validate_style (QCweight, lface[LFACE_WEIGHT_INDEX])); |
ef18374f | 2683 | ASET (prefer, FONT_SLANT_INDEX, |
45eb10fb | 2684 | font_prop_validate_style (QCslant, lface[LFACE_SLANT_INDEX])); |
ef18374f | 2685 | ASET (prefer, FONT_WIDTH_INDEX, |
45eb10fb | 2686 | font_prop_validate_style (QCwidth, lface[LFACE_SWIDTH_INDEX])); |
9331887d KH |
2687 | pt = XINT (lface[LFACE_HEIGHT_INDEX]); |
2688 | ASET (prefer, FONT_SIZE_INDEX, make_float (pt / 10)); | |
c2f5bfd6 | 2689 | |
c2f5bfd6 KH |
2690 | font_sort_entites (entities, prefer, frame, spec); |
2691 | } | |
2692 | ||
1701724c KH |
2693 | if (c < 0) |
2694 | return AREF (entities, 0); | |
2695 | for (i = 0; i < ASIZE (entities); i++) | |
2696 | { | |
2697 | int result = font_has_char (f, AREF (entities, i), c); | |
2698 | Lisp_Object font_object; | |
45eb10fb | 2699 | |
1701724c KH |
2700 | if (result > 0) |
2701 | return AREF (entities, i); | |
2702 | if (result <= 0) | |
2703 | continue; | |
2704 | font_object = font_open_for_lface (f, AREF (entities, i), lface, spec); | |
2705 | if (NILP (font_object)) | |
2706 | continue; | |
2707 | result = font_has_char (f, font_object, c); | |
2708 | font_close_object (f, font_object); | |
2709 | if (result > 0) | |
2710 | return AREF (entities, i); | |
2711 | } | |
2712 | return Qnil; | |
2713 | } | |
45eb10fb KH |
2714 | |
2715 | ||
c2f5bfd6 | 2716 | Lisp_Object |
733fd013 | 2717 | font_open_for_lface (f, entity, lface, spec) |
c2f5bfd6 | 2718 | FRAME_PTR f; |
c2f5bfd6 | 2719 | Lisp_Object entity; |
733fd013 KH |
2720 | Lisp_Object *lface; |
2721 | Lisp_Object spec; | |
c2f5bfd6 | 2722 | { |
9331887d | 2723 | int size; |
c2f5bfd6 | 2724 | |
733fd013 KH |
2725 | if (FONT_SPEC_P (spec) && INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2726 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2727 | else | |
2728 | { | |
2729 | double pt = XINT (lface[LFACE_HEIGHT_INDEX]); | |
2730 | ||
2731 | pt /= 10; | |
2732 | size = POINT_TO_PIXEL (pt, f->resy); | |
2733 | } | |
c2f5bfd6 KH |
2734 | return font_open_entity (f, entity, size); |
2735 | } | |
2736 | ||
45eb10fb KH |
2737 | |
2738 | /* Load a font best matching with FACE's font-related properties into | |
2739 | FACE on frame F. If no proper font is found, record that FACE has | |
2740 | no font. */ | |
2741 | ||
c2f5bfd6 KH |
2742 | void |
2743 | font_load_for_face (f, face) | |
2744 | FRAME_PTR f; | |
2745 | struct face *face; | |
2746 | { | |
ef18374f | 2747 | Lisp_Object font_object = face->lface[LFACE_FONT_INDEX]; |
c2f5bfd6 | 2748 | |
ef18374f | 2749 | if (NILP (font_object)) |
c2f5bfd6 | 2750 | { |
1701724c | 2751 | Lisp_Object entity = font_find_for_lface (f, face->lface, Qnil, -1); |
c2f5bfd6 | 2752 | |
ef18374f | 2753 | if (! NILP (entity)) |
733fd013 | 2754 | font_object = font_open_for_lface (f, entity, face->lface, Qnil); |
ef18374f | 2755 | } |
c2f5bfd6 | 2756 | |
ef18374f KH |
2757 | if (! NILP (font_object)) |
2758 | { | |
2759 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
2760 | ||
2761 | face->font = font->font.font; | |
2762 | face->font_info = (struct font_info *) font; | |
2763 | face->font_info_id = 0; | |
2764 | face->font_name = font->font.full_name; | |
2765 | } | |
2766 | else | |
2767 | { | |
2768 | face->font = NULL; | |
2769 | face->font_info = NULL; | |
2770 | face->font_info_id = -1; | |
2771 | face->font_name = NULL; | |
2772 | add_to_log ("Unable to load font for a face%s", null_string, Qnil); | |
c2f5bfd6 | 2773 | } |
c2f5bfd6 KH |
2774 | } |
2775 | ||
45eb10fb KH |
2776 | |
2777 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
2778 | ||
c2f5bfd6 KH |
2779 | void |
2780 | font_prepare_for_face (f, face) | |
2781 | FRAME_PTR f; | |
2782 | struct face *face; | |
2783 | { | |
2784 | struct font *font = (struct font *) face->font_info; | |
2785 | ||
2786 | if (font->driver->prepare_face) | |
2787 | font->driver->prepare_face (f, face); | |
2788 | } | |
2789 | ||
45eb10fb KH |
2790 | |
2791 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
2792 | ||
c2f5bfd6 KH |
2793 | void |
2794 | font_done_for_face (f, face) | |
2795 | FRAME_PTR f; | |
2796 | struct face *face; | |
2797 | { | |
2798 | struct font *font = (struct font *) face->font_info; | |
2799 | ||
2800 | if (font->driver->done_face) | |
2801 | font->driver->done_face (f, face); | |
2802 | face->extra = NULL; | |
2803 | } | |
2804 | ||
45eb10fb KH |
2805 | |
2806 | /* Open a font best matching with NAME on frame F. If no proper font | |
2807 | is found, return Qnil. */ | |
2808 | ||
c2f5bfd6 KH |
2809 | Lisp_Object |
2810 | font_open_by_name (f, name) | |
2811 | FRAME_PTR f; | |
2812 | char *name; | |
2813 | { | |
ef18374f | 2814 | Lisp_Object args[2]; |
e950d6f1 | 2815 | Lisp_Object spec, prefer, size, entity, entity_list; |
c2f5bfd6 | 2816 | Lisp_Object frame; |
a9262bb8 | 2817 | int i; |
ef18374f | 2818 | int pixel_size; |
c2f5bfd6 KH |
2819 | |
2820 | XSETFRAME (frame, f); | |
a9262bb8 | 2821 | |
ef18374f KH |
2822 | args[0] = QCname; |
2823 | args[1] = make_unibyte_string (name, strlen (name)); | |
2824 | spec = Ffont_spec (2, args); | |
a9262bb8 KH |
2825 | prefer = scratch_font_prefer; |
2826 | for (i = FONT_WEIGHT_INDEX; i < FONT_SIZE_INDEX; i++) | |
2827 | if (NILP (AREF (spec, i))) | |
2828 | ASET (prefer, i, make_number (100)); | |
2829 | size = AREF (spec, FONT_SIZE_INDEX); | |
2830 | if (NILP (size)) | |
2831 | pixel_size = 0; | |
2832 | else if (INTEGERP (size)) | |
2833 | pixel_size = XINT (size); | |
2834 | else /* FLOATP (size) */ | |
ef18374f | 2835 | { |
9331887d | 2836 | double pt = XFLOAT_DATA (size); |
a9262bb8 KH |
2837 | |
2838 | pixel_size = POINT_TO_PIXEL (pt, f->resy); | |
2839 | size = make_number (pixel_size); | |
2840 | ASET (spec, FONT_SIZE_INDEX, size); | |
ef18374f | 2841 | } |
a9262bb8 | 2842 | if (pixel_size == 0) |
ef18374f | 2843 | { |
9331887d | 2844 | pixel_size = POINT_TO_PIXEL (12.0, f->resy); |
a9262bb8 | 2845 | size = make_number (pixel_size); |
ef18374f | 2846 | } |
a9262bb8 | 2847 | ASET (prefer, FONT_SIZE_INDEX, size); |
9331887d KH |
2848 | if (NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
2849 | ASET (spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
a9262bb8 | 2850 | |
e950d6f1 KH |
2851 | entity_list = Flist_fonts (spec, frame, make_number (1), prefer); |
2852 | if (NILP (entity_list)) | |
2853 | entity = font_matching_entity (frame, spec); | |
2854 | else | |
2855 | entity = XCAR (entity_list); | |
2856 | return (NILP (entity) | |
a9262bb8 | 2857 | ? Qnil |
e950d6f1 | 2858 | : font_open_entity (f, entity, pixel_size)); |
c2f5bfd6 KH |
2859 | } |
2860 | ||
2861 | ||
2862 | /* Register font-driver DRIVER. This function is used in two ways. | |
2863 | ||
417a1b10 KH |
2864 | The first is with frame F non-NULL. In this case, make DRIVER |
2865 | available (but not yet activated) on F. All frame creaters | |
2866 | (e.g. Fx_create_frame) must call this function at least once with | |
2867 | an available font-driver. | |
c2f5bfd6 KH |
2868 | |
2869 | The second is with frame F NULL. In this case, DRIVER is globally | |
2870 | registered in the variable `font_driver_list'. All font-driver | |
2871 | implementations must call this function in its syms_of_XXXX | |
2872 | (e.g. syms_of_xfont). */ | |
2873 | ||
2874 | void | |
2875 | register_font_driver (driver, f) | |
2876 | struct font_driver *driver; | |
2877 | FRAME_PTR f; | |
2878 | { | |
2879 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
2880 | struct font_driver_list *prev, *list; | |
2881 | ||
2882 | if (f && ! driver->draw) | |
2883 | error ("Unsable font driver for a frame: %s", | |
2884 | SDATA (SYMBOL_NAME (driver->type))); | |
2885 | ||
2886 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 2887 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
2888 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
2889 | ||
2890 | list = malloc (sizeof (struct font_driver_list)); | |
417a1b10 | 2891 | list->on = 0; |
c2f5bfd6 KH |
2892 | list->driver = driver; |
2893 | list->next = NULL; | |
2894 | if (prev) | |
2895 | prev->next = list; | |
2896 | else if (f) | |
2897 | f->font_driver_list = list; | |
2898 | else | |
2899 | font_driver_list = list; | |
2900 | num_font_drivers++; | |
2901 | } | |
2902 | ||
45eb10fb | 2903 | |
c2f5bfd6 KH |
2904 | /* Free font-driver list on frame F. It doesn't free font-drivers |
2905 | themselves. */ | |
2906 | ||
2907 | void | |
2908 | free_font_driver_list (f) | |
2909 | FRAME_PTR f; | |
2910 | { | |
2911 | while (f->font_driver_list) | |
2912 | { | |
2913 | struct font_driver_list *next = f->font_driver_list->next; | |
2914 | ||
2915 | free (f->font_driver_list); | |
2916 | f->font_driver_list = next; | |
2917 | } | |
2918 | } | |
2919 | ||
45eb10fb | 2920 | |
f697fff0 | 2921 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
2922 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
2923 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 2924 | |
ca4da08a KH |
2925 | A caller must free all realized faces if any in advance. The |
2926 | return value is a list of font backends actually made used on | |
2927 | F. */ | |
e950d6f1 KH |
2928 | |
2929 | Lisp_Object | |
2930 | font_update_drivers (f, new_drivers) | |
417a1b10 KH |
2931 | FRAME_PTR f; |
2932 | Lisp_Object new_drivers; | |
417a1b10 KH |
2933 | { |
2934 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
2935 | struct font_driver_list *list; |
2936 | ||
f697fff0 KH |
2937 | for (list = f->font_driver_list; list; list = list->next) |
2938 | if (list->on) | |
2939 | { | |
ca4da08a KH |
2940 | if (! EQ (new_drivers, Qt) |
2941 | && NILP (Fmemq (list->driver->type, new_drivers))) | |
2942 | { | |
2943 | if (list->driver->end_for_frame) | |
2944 | list->driver->end_for_frame (f); | |
2945 | font_finish_cache (f, list->driver); | |
2946 | list->on = 0; | |
2947 | } | |
f697fff0 | 2948 | } |
ca4da08a | 2949 | else |
e950d6f1 | 2950 | { |
ca4da08a KH |
2951 | if (EQ (new_drivers, Qt) |
2952 | || ! NILP (Fmemq (list->driver->type, new_drivers))) | |
2953 | { | |
2954 | if (! list->driver->start_for_frame | |
2955 | || list->driver->start_for_frame (f) == 0) | |
2956 | { | |
2957 | font_prepare_cache (f, list->driver); | |
2958 | list->on = 1; | |
2959 | active_drivers = nconc2 (active_drivers, | |
2960 | Fcons (list->driver->type, Qnil)); | |
2961 | } | |
2962 | } | |
e950d6f1 | 2963 | } |
417a1b10 | 2964 | |
e950d6f1 | 2965 | return active_drivers; |
417a1b10 KH |
2966 | } |
2967 | ||
f697fff0 KH |
2968 | int |
2969 | font_put_frame_data (f, driver, data) | |
2970 | FRAME_PTR f; | |
2971 | struct font_driver *driver; | |
2972 | void *data; | |
2973 | { | |
2974 | struct font_data_list *list, *prev; | |
2975 | ||
2976 | for (prev = NULL, list = f->font_data_list; list; | |
2977 | prev = list, list = list->next) | |
2978 | if (list->driver == driver) | |
2979 | break; | |
2980 | if (! data) | |
2981 | { | |
2982 | if (list) | |
2983 | { | |
2984 | if (prev) | |
2985 | prev->next = list->next; | |
2986 | else | |
2987 | f->font_data_list = list->next; | |
2988 | free (list); | |
2989 | } | |
2990 | return 0; | |
2991 | } | |
2992 | ||
2993 | if (! list) | |
2994 | { | |
2995 | list = malloc (sizeof (struct font_data_list)); | |
2996 | if (! list) | |
2997 | return -1; | |
2998 | list->driver = driver; | |
2999 | list->next = f->font_data_list; | |
3000 | f->font_data_list = list; | |
3001 | } | |
3002 | list->data = data; | |
3003 | return 0; | |
3004 | } | |
3005 | ||
3006 | ||
3007 | void * | |
3008 | font_get_frame_data (f, driver) | |
3009 | FRAME_PTR f; | |
3010 | struct font_driver *driver; | |
3011 | { | |
3012 | struct font_data_list *list; | |
3013 | ||
3014 | for (list = f->font_data_list; list; list = list->next) | |
3015 | if (list->driver == driver) | |
3016 | break; | |
3017 | if (! list) | |
3018 | return NULL; | |
3019 | return list->data; | |
3020 | } | |
3021 | ||
417a1b10 | 3022 | |
45eb10fb | 3023 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3024 | POS in window W. If STRING is non-nil, it is a string containing C |
3025 | at index POS. If C is negative, get C from the current buffer or | |
3026 | STRING. */ | |
45eb10fb | 3027 | |
10d16101 | 3028 | Lisp_Object |
e3ee0340 | 3029 | font_at (c, pos, face, w, string) |
10d16101 KH |
3030 | int c; |
3031 | EMACS_INT pos; | |
3032 | struct face *face; | |
3033 | struct window *w; | |
e3ee0340 | 3034 | Lisp_Object string; |
10d16101 KH |
3035 | { |
3036 | FRAME_PTR f; | |
e3ee0340 KH |
3037 | int multibyte; |
3038 | ||
3039 | if (c < 0) | |
3040 | { | |
3041 | if (NILP (string)) | |
3042 | { | |
3043 | multibyte = ! NILP (current_buffer->enable_multibyte_characters); | |
3044 | if (multibyte) | |
3045 | { | |
3046 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3047 | ||
3048 | c = FETCH_CHAR (pos_byte); | |
3049 | } | |
3050 | else | |
3051 | c = FETCH_BYTE (pos); | |
3052 | } | |
3053 | else | |
3054 | { | |
3055 | unsigned char *str; | |
3056 | ||
3057 | multibyte = STRING_MULTIBYTE (string); | |
3058 | if (multibyte) | |
3059 | { | |
3060 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3061 | ||
3062 | str = SDATA (string) + pos_byte; | |
3063 | c = STRING_CHAR (str, 0); | |
3064 | } | |
3065 | else | |
3066 | c = SDATA (string)[pos]; | |
3067 | } | |
3068 | } | |
10d16101 KH |
3069 | |
3070 | f = XFRAME (w->frame); | |
1385a806 KH |
3071 | if (! FRAME_WINDOW_P (f)) |
3072 | return Qnil; | |
10d16101 KH |
3073 | if (! face) |
3074 | { | |
e3ee0340 KH |
3075 | int face_id; |
3076 | int endptr; | |
3077 | ||
3078 | if (STRINGP (string)) | |
3079 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3080 | DEFAULT_FACE_ID, 0); |
3081 | else | |
e3ee0340 | 3082 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
10d16101 KH |
3083 | pos + 100, 0); |
3084 | face = FACE_FROM_ID (f, face_id); | |
3085 | } | |
e3ee0340 KH |
3086 | if (multibyte) |
3087 | { | |
3088 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3089 | face = FACE_FROM_ID (f, face_id); | |
3090 | } | |
10d16101 KH |
3091 | if (! face->font_info) |
3092 | return Qnil; | |
45eb10fb | 3093 | return font_find_object ((struct font *) face->font_info); |
10d16101 KH |
3094 | } |
3095 | ||
c2f5bfd6 KH |
3096 | \f |
3097 | /* Lisp API */ | |
3098 | ||
3099 | DEFUN ("fontp", Ffontp, Sfontp, 1, 1, 0, | |
45eb10fb KH |
3100 | doc: /* Return t if OBJECT is a font-spec or font-entity. |
3101 | Return nil otherwise. */) | |
c2f5bfd6 KH |
3102 | (object) |
3103 | Lisp_Object object; | |
3104 | { | |
3105 | return (FONTP (object) ? Qt : Qnil); | |
3106 | } | |
3107 | ||
3108 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, | |
45eb10fb KH |
3109 | doc: /* Return a newly created font-spec with arguments as properties. |
3110 | ||
3111 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3112 | valid font property name listed below: | |
3113 | ||
3114 | `:family', `:weight', `:slant', `:width' | |
3115 | ||
3116 | They are the same as face attributes of the same name. See | |
3117 | `set-face-attribute. | |
3118 | ||
3119 | `:foundry' | |
3120 | ||
3121 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3122 | ||
3123 | `:adstyle' | |
3124 | ||
3125 | VALUE must be a string or a symbol specifying the additional | |
3126 | typographic style information of a font, e.g. ``sans''. Usually null. | |
3127 | ||
3128 | `:registry' | |
3129 | ||
3130 | VALUE must be a string or a symbol specifying the charset registry and | |
3131 | encoding of a font, e.g. ``iso8859-1''. | |
3132 | ||
3133 | `:size' | |
3134 | ||
3135 | VALUE must be a non-negative integer or a floating point number | |
3136 | specifying the font size. It specifies the font size in 1/10 pixels | |
f697fff0 KH |
3137 | (if VALUE is an integer), or in points (if VALUE is a float). |
3138 | usage: (font-spec ARGS ...) */) | |
c2f5bfd6 KH |
3139 | (nargs, args) |
3140 | int nargs; | |
3141 | Lisp_Object *args; | |
3142 | { | |
3143 | Lisp_Object spec = Fmake_vector (make_number (FONT_SPEC_MAX), Qnil); | |
c2f5bfd6 KH |
3144 | int i; |
3145 | ||
3146 | for (i = 0; i < nargs; i += 2) | |
3147 | { | |
3148 | enum font_property_index prop; | |
3149 | Lisp_Object key = args[i], val = args[i + 1]; | |
3150 | ||
ec6fe57c | 3151 | prop = get_font_prop_index (key, 0); |
c2f5bfd6 | 3152 | if (prop < FONT_EXTRA_INDEX) |
ec6fe57c | 3153 | ASET (spec, prop, val); |
c2f5bfd6 | 3154 | else |
4485a28e KH |
3155 | { |
3156 | if (EQ (key, QCname)) | |
ec6fe57c KH |
3157 | { |
3158 | CHECK_STRING (val); | |
3159 | font_parse_name ((char *) SDATA (val), spec); | |
3160 | } | |
e950d6f1 | 3161 | font_put_extra (spec, key, val); |
4485a28e | 3162 | } |
e950d6f1 | 3163 | } |
ec6fe57c | 3164 | CHECK_VALIDATE_FONT_SPEC (spec); |
c2f5bfd6 KH |
3165 | return spec; |
3166 | } | |
3167 | ||
3168 | ||
3169 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, | |
45eb10fb | 3170 | doc: /* Return the value of FONT's property KEY. |
e950d6f1 | 3171 | FONT is a font-spec, a font-entity, or a font-object. */) |
45eb10fb KH |
3172 | (font, key) |
3173 | Lisp_Object font, key; | |
c2f5bfd6 KH |
3174 | { |
3175 | enum font_property_index idx; | |
3176 | ||
10d16101 | 3177 | if (FONT_OBJECT_P (font)) |
e80e09b4 KH |
3178 | { |
3179 | struct font *fontp = XSAVE_VALUE (font)->pointer; | |
3180 | ||
45eb10fb | 3181 | if (EQ (key, QCotf)) |
e950d6f1 | 3182 | { |
771bd479 JR |
3183 | if (fontp->driver->otf_capability) |
3184 | return fontp->driver->otf_capability (fontp); | |
3185 | else | |
3186 | return Qnil; | |
e950d6f1 | 3187 | } |
e80e09b4 KH |
3188 | font = fontp->entity; |
3189 | } | |
10d16101 KH |
3190 | else |
3191 | CHECK_FONT (font); | |
45eb10fb | 3192 | idx = get_font_prop_index (key, 0); |
c2f5bfd6 KH |
3193 | if (idx < FONT_EXTRA_INDEX) |
3194 | return AREF (font, idx); | |
3195 | if (FONT_ENTITY_P (font)) | |
3196 | return Qnil; | |
e670e827 | 3197 | return Fcdr (Fassoc (key, AREF (font, FONT_EXTRA_INDEX))); |
c2f5bfd6 KH |
3198 | } |
3199 | ||
3200 | ||
3201 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, | |
45eb10fb | 3202 | doc: /* Set one property of FONT-SPEC: give property KEY value VALUE. */) |
c2f5bfd6 KH |
3203 | (font_spec, prop, val) |
3204 | Lisp_Object font_spec, prop, val; | |
3205 | { | |
3206 | enum font_property_index idx; | |
3207 | Lisp_Object extra, slot; | |
3208 | ||
3209 | CHECK_FONT_SPEC (font_spec); | |
ec6fe57c | 3210 | idx = get_font_prop_index (prop, 0); |
c2f5bfd6 KH |
3211 | if (idx < FONT_EXTRA_INDEX) |
3212 | return ASET (font_spec, idx, val); | |
3213 | extra = AREF (font_spec, FONT_EXTRA_INDEX); | |
3214 | slot = Fassoc (extra, prop); | |
3215 | if (NILP (slot)) | |
3216 | extra = Fcons (Fcons (prop, val), extra); | |
3217 | else | |
3218 | Fsetcdr (slot, val); | |
3219 | return val; | |
3220 | } | |
3221 | ||
3222 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, | |
3223 | doc: /* List available fonts matching FONT-SPEC on the current frame. | |
3224 | Optional 2nd argument FRAME specifies the target frame. | |
3225 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
3226 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
3227 | control the order of the returned list. Fonts are sorted by | |
3228 | how they are close to PREFER. */) | |
c2f5bfd6 KH |
3229 | (font_spec, frame, num, prefer) |
3230 | Lisp_Object font_spec, frame, num, prefer; | |
3231 | { | |
3232 | Lisp_Object vec, list, tail; | |
3233 | int n = 0, i, len; | |
3234 | ||
3235 | if (NILP (frame)) | |
3236 | frame = selected_frame; | |
3237 | CHECK_LIVE_FRAME (frame); | |
3238 | CHECK_VALIDATE_FONT_SPEC (font_spec); | |
3239 | if (! NILP (num)) | |
3240 | { | |
3241 | CHECK_NUMBER (num); | |
3242 | n = XINT (num); | |
3243 | if (n <= 0) | |
3244 | return Qnil; | |
3245 | } | |
3246 | if (! NILP (prefer)) | |
3247 | CHECK_FONT (prefer); | |
3248 | ||
3249 | vec = font_list_entities (frame, font_spec); | |
3250 | len = ASIZE (vec); | |
3251 | if (len == 0) | |
3252 | return Qnil; | |
3253 | if (len == 1) | |
3254 | return Fcons (AREF (vec, 0), Qnil); | |
3255 | ||
3256 | if (! NILP (prefer)) | |
3257 | vec = font_sort_entites (vec, prefer, frame, font_spec); | |
3258 | ||
3259 | list = tail = Fcons (AREF (vec, 0), Qnil); | |
3260 | if (n == 0 || n > len) | |
3261 | n = len; | |
3262 | for (i = 1; i < n; i++) | |
3263 | { | |
3264 | Lisp_Object val = Fcons (AREF (vec, i), Qnil); | |
3265 | ||
3266 | XSETCDR (tail, val); | |
3267 | tail = val; | |
3268 | } | |
3269 | return list; | |
3270 | } | |
3271 | ||
3272 | DEFUN ("list-families", Flist_families, Slist_families, 0, 1, 0, | |
3273 | doc: /* List available font families on the current frame. | |
3274 | Optional 2nd argument FRAME specifies the target frame. */) | |
3275 | (frame) | |
3276 | Lisp_Object frame; | |
3277 | { | |
3278 | FRAME_PTR f; | |
3279 | struct font_driver_list *driver_list; | |
3280 | Lisp_Object list; | |
3281 | ||
3282 | if (NILP (frame)) | |
3283 | frame = selected_frame; | |
3284 | CHECK_LIVE_FRAME (frame); | |
3285 | f = XFRAME (frame); | |
3286 | list = Qnil; | |
3287 | for (driver_list = f->font_driver_list; driver_list; | |
3288 | driver_list = driver_list->next) | |
3289 | if (driver_list->driver->list_family) | |
3290 | { | |
3291 | Lisp_Object val = driver_list->driver->list_family (frame); | |
3292 | ||
3293 | if (NILP (list)) | |
3294 | list = val; | |
3295 | else | |
3296 | { | |
3297 | Lisp_Object tail = list; | |
3298 | ||
3299 | for (; CONSP (val); val = XCDR (val)) | |
3300 | if (NILP (Fmemq (XCAR (val), tail))) | |
3301 | list = Fcons (XCAR (val), list); | |
3302 | } | |
3303 | } | |
3304 | return list; | |
3305 | } | |
3306 | ||
3307 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
3308 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
3309 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
3310 | (font_spec, frame) | |
3311 | Lisp_Object font_spec, frame; | |
3312 | { | |
3313 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
3314 | ||
3315 | if (CONSP (val)) | |
3316 | val = XCAR (val); | |
3317 | return val; | |
3318 | } | |
3319 | ||
3320 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 1, 0, | |
3321 | doc: /* Return XLFD name of FONT. | |
3322 | FONT is a font-spec, font-entity, or font-object. | |
3323 | If the name is too long for XLFD (maximum 255 chars), return nil. */) | |
3324 | (font) | |
3325 | Lisp_Object font; | |
3326 | { | |
3327 | char name[256]; | |
3328 | int pixel_size = 0; | |
3329 | ||
3330 | if (FONT_SPEC_P (font)) | |
3331 | CHECK_VALIDATE_FONT_SPEC (font); | |
3332 | else if (FONT_ENTITY_P (font)) | |
3333 | CHECK_FONT (font); | |
3334 | else | |
3335 | { | |
3336 | struct font *fontp; | |
3337 | ||
3338 | CHECK_FONT_GET_OBJECT (font, fontp); | |
3339 | font = fontp->entity; | |
3340 | pixel_size = fontp->pixel_size; | |
3341 | } | |
3342 | ||
3343 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) | |
3344 | return Qnil; | |
3345 | return build_string (name); | |
3346 | } | |
3347 | ||
3348 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
3349 | doc: /* Clear font cache. */) | |
3350 | () | |
3351 | { | |
3352 | Lisp_Object list, frame; | |
3353 | ||
3354 | FOR_EACH_FRAME (list, frame) | |
3355 | { | |
3356 | FRAME_PTR f = XFRAME (frame); | |
3357 | struct font_driver_list *driver_list = f->font_driver_list; | |
3358 | ||
3359 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
3360 | if (driver_list->on) |
3361 | { | |
ca4da08a KH |
3362 | Lisp_Object cache = driver_list->driver->get_cache (f); |
3363 | Lisp_Object val; | |
c2f5bfd6 | 3364 | |
ca4da08a KH |
3365 | val = XCDR (cache); |
3366 | while (! EQ (XCAR (val), driver_list->driver->type)) | |
3367 | val = XCDR (val); | |
3368 | val = XCDR (XCAR (val)); | |
3369 | if (XINT (XCAR (val)) == 0) | |
417a1b10 | 3370 | { |
ca4da08a KH |
3371 | font_clear_cache (f, XCAR (val), driver_list->driver); |
3372 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 3373 | } |
417a1b10 | 3374 | } |
c2f5bfd6 KH |
3375 | } |
3376 | ||
3377 | return Qnil; | |
3378 | } | |
3379 | ||
3380 | DEFUN ("internal-set-font-style-table", Finternal_set_font_style_table, | |
3381 | Sinternal_set_font_style_table, 2, 2, 0, | |
3382 | doc: /* Set font style table for PROP to TABLE. | |
3383 | PROP must be `:weight', `:slant', or `:width'. | |
3384 | TABLE must be an alist of symbols vs the corresponding numeric values | |
3385 | sorted by numeric values. */) | |
3386 | (prop, table) | |
3387 | Lisp_Object prop, table; | |
3388 | { | |
3389 | int table_index; | |
3390 | int numeric; | |
3391 | Lisp_Object tail, val; | |
3392 | ||
3393 | CHECK_SYMBOL (prop); | |
3394 | table_index = (EQ (prop, QCweight) ? 0 | |
3395 | : EQ (prop, QCslant) ? 1 | |
3396 | : EQ (prop, QCwidth) ? 2 | |
3397 | : 3); | |
3398 | if (table_index >= ASIZE (font_style_table)) | |
3399 | error ("Invalid font style property: %s", SDATA (SYMBOL_NAME (prop))); | |
3400 | table = Fcopy_sequence (table); | |
3401 | numeric = -1; | |
3402 | for (tail = table; ! NILP (tail); tail = Fcdr (tail)) | |
3403 | { | |
3404 | prop = Fcar (Fcar (tail)); | |
3405 | val = Fcdr (Fcar (tail)); | |
3406 | CHECK_SYMBOL (prop); | |
3407 | CHECK_NATNUM (val); | |
3408 | if (numeric > XINT (val)) | |
3409 | error ("Numeric values not sorted for %s", SDATA (SYMBOL_NAME (prop))); | |
3410 | numeric = XINT (val); | |
3411 | XSETCAR (tail, Fcons (prop, val)); | |
3412 | } | |
3413 | ASET (font_style_table, table_index, table); | |
3414 | return Qnil; | |
3415 | } | |
3416 | ||
45eb10fb KH |
3417 | /* The following three functions are still expremental. */ |
3418 | ||
c2f5bfd6 | 3419 | DEFUN ("font-make-gstring", Ffont_make_gstring, Sfont_make_gstring, 2, 2, 0, |
e80e09b4 KH |
3420 | doc: /* Return a newly created g-string for FONT-OBJECT with NUM glyphs. |
3421 | FONT-OBJECT may be nil if it is not yet known. | |
3422 | ||
3423 | G-string is sequence of glyphs of a specific font, | |
3424 | and is a vector of this form: | |
3425 | [ HEADER GLYPH ... ] | |
3426 | HEADER is a vector of this form: | |
1701724c | 3427 | [FONT-OBJECT WIDTH LBEARING RBEARING ASCENT DESCENT] |
e80e09b4 | 3428 | where |
733fd013 | 3429 | FONT-OBJECT is a font-object for all glyphs in the g-string, |
1701724c | 3430 | WIDTH thry DESCENT are the metrics (in pixels) of the whole G-string. |
e80e09b4 | 3431 | GLYPH is a vector of this form: |
1701724c KH |
3432 | [ FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT |
3433 | [ [X-OFF Y-OFF WADJUST] | nil] ] | |
e80e09b4 KH |
3434 | where |
3435 | FROM-IDX and TO-IDX are used internally and should not be touched. | |
3436 | C is the character of the glyph. | |
3437 | CODE is the glyph-code of C in FONT-OBJECT. | |
1701724c | 3438 | WIDTH thry DESCENT are the metrics (in pixels) of the glyph. |
e80e09b4 | 3439 | X-OFF and Y-OFF are offests to the base position for the glyph. |
e80e09b4 | 3440 | WADJUST is the adjustment to the normal width of the glyph. */) |
c2f5bfd6 KH |
3441 | (font_object, num) |
3442 | Lisp_Object font_object, num; | |
3443 | { | |
3444 | Lisp_Object gstring, g; | |
3445 | int len; | |
3446 | int i; | |
3447 | ||
3448 | if (! NILP (font_object)) | |
3449 | CHECK_FONT_OBJECT (font_object); | |
3450 | CHECK_NATNUM (num); | |
3451 | ||
3452 | len = XINT (num) + 1; | |
3453 | gstring = Fmake_vector (make_number (len), Qnil); | |
3454 | g = Fmake_vector (make_number (6), Qnil); | |
3455 | ASET (g, 0, font_object); | |
3456 | ASET (gstring, 0, g); | |
3457 | for (i = 1; i < len; i++) | |
1701724c | 3458 | ASET (gstring, i, Fmake_vector (make_number (10), Qnil)); |
c2f5bfd6 KH |
3459 | return gstring; |
3460 | } | |
3461 | ||
3462 | DEFUN ("font-fill-gstring", Ffont_fill_gstring, Sfont_fill_gstring, 4, 5, 0, | |
3463 | doc: /* Fillin glyph-string GSTRING by characters for FONT-OBJECT. | |
3464 | START and END specifies the region to extract characters. | |
3465 | If optional 3rd argument OBJECT is non-nil, it is a buffer or a string from | |
3466 | where to extract characters. | |
3467 | FONT-OBJECT may be nil if GSTRING already already contains one. */) | |
3468 | (gstring, font_object, start, end, object) | |
3469 | Lisp_Object gstring, font_object, start, end, object; | |
3470 | { | |
3471 | int len, i, c; | |
3472 | unsigned code; | |
3473 | struct font *font; | |
3474 | ||
3475 | CHECK_VECTOR (gstring); | |
3476 | if (NILP (font_object)) | |
10d16101 | 3477 | font_object = LGSTRING_FONT (gstring); |
c2f5bfd6 KH |
3478 | CHECK_FONT_GET_OBJECT (font_object, font); |
3479 | ||
3480 | if (STRINGP (object)) | |
3481 | { | |
3482 | const unsigned char *p; | |
3483 | ||
3484 | CHECK_NATNUM (start); | |
3485 | CHECK_NATNUM (end); | |
3486 | if (XINT (start) > XINT (end) | |
3487 | || XINT (end) > ASIZE (object) | |
10d16101 | 3488 | || XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
1701724c | 3489 | args_out_of_range_3 (object, start, end); |
c2f5bfd6 KH |
3490 | |
3491 | len = XINT (end) - XINT (start); | |
3492 | p = SDATA (object) + string_char_to_byte (object, XINT (start)); | |
3493 | for (i = 0; i < len; i++) | |
3494 | { | |
3495 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3496 | ||
3497 | c = STRING_CHAR_ADVANCE (p); | |
3498 | code = font->driver->encode_char (font, c); | |
40fb53d6 KH |
3499 | if (code > MOST_POSITIVE_FIXNUM || code == FONT_INVALID_CODE) |
3500 | break; | |
1701724c KH |
3501 | LGLYPH_SET_FROM (g, i); |
3502 | LGLYPH_SET_TO (g, i); | |
3503 | LGLYPH_SET_CHAR (g, c); | |
3504 | LGLYPH_SET_CODE (g, code); | |
c2f5bfd6 KH |
3505 | } |
3506 | } | |
3507 | else | |
3508 | { | |
3509 | int pos, pos_byte; | |
3510 | ||
3511 | if (! NILP (object)) | |
3512 | Fset_buffer (object); | |
3513 | validate_region (&start, &end); | |
10d16101 | 3514 | if (XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
c2f5bfd6 KH |
3515 | args_out_of_range (start, end); |
3516 | len = XINT (end) - XINT (start); | |
3517 | pos = XINT (start); | |
3518 | pos_byte = CHAR_TO_BYTE (pos); | |
3519 | for (i = 0; i < len; i++) | |
3520 | { | |
3521 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3522 | ||
3523 | FETCH_CHAR_ADVANCE (c, pos, pos_byte); | |
3524 | code = font->driver->encode_char (font, c); | |
40fb53d6 KH |
3525 | if (code > MOST_POSITIVE_FIXNUM || code == FONT_INVALID_CODE) |
3526 | break; | |
1701724c KH |
3527 | LGLYPH_SET_FROM (g, i); |
3528 | LGLYPH_SET_TO (g, i); | |
3529 | LGLYPH_SET_CHAR (g, c); | |
3530 | LGLYPH_SET_CODE (g, code); | |
c2f5bfd6 KH |
3531 | } |
3532 | } | |
40fb53d6 | 3533 | for (; i < LGSTRING_LENGTH (gstring); i++) |
1701724c KH |
3534 | LGSTRING_SET_GLYPH (gstring, i, Qnil); |
3535 | return Qnil; | |
3536 | } | |
3537 | ||
3538 | DEFUN ("font-shape-text", Ffont_shape_text, Sfont_shape_text, 3, 4, 0, | |
3539 | doc: /* Shape text between FROM and TO by FONT-OBJECT. | |
3540 | If optional 4th argument STRING is non-nil, it is a string to shape, | |
3541 | and FROM and TO are indices to the string. | |
40fb53d6 KH |
3542 | The value is the end position of the text that can be shaped by |
3543 | FONT-OBJECT. */) | |
1701724c KH |
3544 | (from, to, font_object, string) |
3545 | Lisp_Object from, to, font_object, string; | |
3546 | { | |
3547 | struct font *font; | |
3548 | struct font_metrics metrics; | |
3549 | EMACS_INT start, end; | |
3550 | Lisp_Object gstring, n; | |
40fb53d6 | 3551 | int len, i, j; |
1701724c KH |
3552 | |
3553 | if (NILP (string)) | |
3554 | { | |
3555 | validate_region (&from, &to); | |
3556 | start = XFASTINT (from); | |
3557 | end = XFASTINT (to); | |
3558 | modify_region (current_buffer, start, end, 0); | |
3559 | } | |
3560 | else | |
3561 | { | |
3562 | CHECK_STRING (string); | |
3563 | start = XINT (from); | |
3564 | end = XINT (to); | |
3565 | if (start < 0 || start > end || end > SCHARS (string)) | |
3566 | args_out_of_range_3 (string, from, to); | |
3567 | } | |
3568 | ||
3569 | CHECK_FONT_GET_OBJECT (font_object, font); | |
40fb53d6 KH |
3570 | len = end - start; |
3571 | gstring = Ffont_make_gstring (font_object, make_number (len)); | |
1701724c | 3572 | Ffont_fill_gstring (gstring, font_object, from, to, string); |
e8912e41 KH |
3573 | if (! font->driver->shape) |
3574 | { | |
3575 | /* Make zero-width glyphs to have one pixel width to make the | |
3576 | display routine not lose the cursor. */ | |
3577 | for (i = 0; i < len; i++) | |
3578 | { | |
3579 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3580 | unsigned code = LGLYPH_CODE (g); | |
3581 | struct font_metrics metrics; | |
3582 | ||
3583 | if (font->driver->text_extents (font, &code, 1, &metrics) == 0) | |
3584 | { | |
3585 | Lisp_Object gstr = Ffont_make_gstring (font_object, | |
3586 | make_number (1)); | |
3587 | LGSTRING_SET_WIDTH (gstr, 1); | |
3588 | LGSTRING_SET_LBEARING (gstr, metrics.lbearing); | |
3589 | LGSTRING_SET_RBEARING (gstr, metrics.rbearing + 1); | |
3590 | LGSTRING_SET_ASCENT (gstr, metrics.ascent); | |
3591 | LGSTRING_SET_DESCENT (gstr, metrics.descent); | |
3592 | LGLYPH_SET_FROM (g, 0); | |
3593 | LGLYPH_SET_TO (g, 1); | |
3594 | LGSTRING_SET_GLYPH (gstr, 0, g); | |
3595 | from = make_number (start + i); | |
3596 | to = make_number (start + i + 1); | |
3597 | if (NILP (string)) | |
3598 | Fcompose_region_internal (from, to, gstr, Qnil); | |
3599 | else | |
3600 | Fcompose_region_internal (string, from, to, gstr, Qnil); | |
3601 | } | |
3602 | } | |
3603 | return make_number (end); | |
3604 | } | |
3605 | ||
40fb53d6 KH |
3606 | |
3607 | /* Try at most three times with larger gstring each time. */ | |
3608 | for (i = 0; i < 3; i++) | |
3609 | { | |
3610 | Lisp_Object args[2]; | |
3611 | ||
3612 | n = font->driver->shape (gstring); | |
3613 | if (INTEGERP (n)) | |
3614 | break; | |
3615 | args[0] = gstring; | |
3616 | args[1] = Fmake_vector (make_number (len), Qnil); | |
3617 | gstring = Fvconcat (2, args); | |
3618 | } | |
3619 | if (! INTEGERP (n) || XINT (n) == 0) | |
1701724c | 3620 | return Qnil; |
40fb53d6 KH |
3621 | len = XINT (n); |
3622 | ||
3623 | for (i = 0; i < len;) | |
10d16101 | 3624 | { |
1701724c | 3625 | Lisp_Object gstr; |
10d16101 | 3626 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); |
1701724c KH |
3627 | EMACS_INT this_from = LGLYPH_FROM (g); |
3628 | EMACS_INT this_to = LGLYPH_TO (g) + 1; | |
3629 | int j, k; | |
b2937119 | 3630 | int need_composition = 0; |
1701724c KH |
3631 | |
3632 | metrics.lbearing = LGLYPH_LBEARING (g); | |
3633 | metrics.rbearing = LGLYPH_RBEARING (g); | |
3634 | metrics.ascent = LGLYPH_ASCENT (g); | |
3635 | metrics.descent = LGLYPH_DESCENT (g); | |
3636 | if (NILP (LGLYPH_ADJUSTMENT (g))) | |
b2937119 KH |
3637 | { |
3638 | metrics.width = LGLYPH_WIDTH (g); | |
3639 | if (XINT (LGLYPH_CHAR (g)) == 0 || metrics.width == 0) | |
3640 | need_composition = 1; | |
3641 | } | |
1701724c KH |
3642 | else |
3643 | { | |
3644 | metrics.width = LGLYPH_WADJUST (g); | |
3645 | metrics.lbearing += LGLYPH_XOFF (g); | |
3646 | metrics.rbearing += LGLYPH_XOFF (g); | |
3647 | metrics.ascent -= LGLYPH_YOFF (g); | |
3648 | metrics.descent += LGLYPH_YOFF (g); | |
b2937119 | 3649 | need_composition = 1; |
1701724c | 3650 | } |
40fb53d6 | 3651 | for (j = i + 1; j < len; j++) |
1701724c KH |
3652 | { |
3653 | int x; | |
3654 | ||
3655 | g = LGSTRING_GLYPH (gstring, j); | |
3656 | if (this_from != LGLYPH_FROM (g)) | |
3657 | break; | |
b2937119 | 3658 | need_composition = 1; |
1701724c KH |
3659 | x = metrics.width + LGLYPH_LBEARING (g) + LGLYPH_XOFF (g); |
3660 | if (metrics.lbearing > x) | |
3661 | metrics.lbearing = x; | |
3662 | x = metrics.width + LGLYPH_RBEARING (g) + LGLYPH_XOFF (g); | |
3663 | if (metrics.rbearing < x) | |
3664 | metrics.rbearing = x; | |
3665 | x = LGLYPH_ASCENT (g) - LGLYPH_YOFF (g); | |
3666 | if (metrics.ascent < x) | |
3667 | metrics.ascent = x; | |
3668 | x = LGLYPH_DESCENT (g) - LGLYPH_YOFF (g); | |
3669 | if (metrics.descent < x) | |
3670 | metrics.descent = x; | |
3671 | if (NILP (LGLYPH_ADJUSTMENT (g))) | |
3672 | metrics.width += LGLYPH_WIDTH (g); | |
3673 | else | |
3674 | metrics.width += LGLYPH_WADJUST (g); | |
3675 | } | |
10d16101 | 3676 | |
b2937119 KH |
3677 | if (need_composition) |
3678 | { | |
3679 | gstr = Ffont_make_gstring (font_object, make_number (j - i)); | |
3680 | LGSTRING_SET_WIDTH (gstr, metrics.width); | |
3681 | LGSTRING_SET_LBEARING (gstr, metrics.lbearing); | |
3682 | LGSTRING_SET_RBEARING (gstr, metrics.rbearing); | |
3683 | LGSTRING_SET_ASCENT (gstr, metrics.ascent); | |
3684 | LGSTRING_SET_DESCENT (gstr, metrics.descent); | |
3685 | for (k = i; i < j; i++) | |
e8912e41 KH |
3686 | { |
3687 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3688 | ||
3689 | LGLYPH_SET_FROM (g, LGLYPH_FROM (g) - this_from); | |
95d0a340 | 3690 | LGLYPH_SET_TO (g, LGLYPH_TO (g) - this_from); |
e8912e41 KH |
3691 | LGSTRING_SET_GLYPH (gstr, i - k, LGSTRING_GLYPH (gstring, i)); |
3692 | } | |
b2937119 KH |
3693 | from = make_number (start + this_from); |
3694 | to = make_number (start + this_to); | |
3695 | if (NILP (string)) | |
3696 | Fcompose_region_internal (from, to, gstr, Qnil); | |
3697 | else | |
3698 | Fcompose_string_internal (string, from, to, gstr, Qnil); | |
3699 | } | |
1701724c | 3700 | else |
b2937119 | 3701 | i = j; |
10d16101 | 3702 | } |
1701724c | 3703 | |
14065d35 | 3704 | return to; |
c2f5bfd6 KH |
3705 | } |
3706 | ||
733fd013 KH |
3707 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
3708 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. | |
3709 | OTF-SPEC specifies which featuress to apply in this format: | |
3710 | (SCRIPT LANGSYS GSUB GPOS) | |
e80e09b4 KH |
3711 | where |
3712 | SCRIPT is a symbol specifying a script tag of OpenType, | |
3713 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 3714 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
3715 | |
3716 | If LANGYS is nil, the default langsys is selected. | |
3717 | ||
733fd013 KH |
3718 | The features are applied in the order appeared in the list. The |
3719 | symbol `*' means to apply all available features not appeared in this | |
3720 | list, and the remaining features are ignored. For instance, (vatu | |
3721 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
3722 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
3723 | |
3724 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 3725 | the glyph-string GSTRING-IN. |
e80e09b4 KH |
3726 | |
3727 | If some of a feature is actually applicable, the resulting glyphs are | |
3728 | produced in the glyph-string GSTRING-OUT from the index INDEX. In | |
3729 | this case, the value is the number of produced glyphs. | |
3730 | ||
3731 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
3732 | the value is 0. | |
3733 | ||
3734 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs is | |
3735 | produced in GSTRING-OUT, and the value is nil. | |
3736 | ||
3737 | See the documentation of `font-make-gstring' for the format of | |
3738 | glyph-string. */) | |
733fd013 KH |
3739 | (otf_features, gstring_in, from, to, gstring_out, index) |
3740 | Lisp_Object otf_features, gstring_in, from, to, gstring_out, index; | |
e80e09b4 KH |
3741 | { |
3742 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
3743 | Lisp_Object val; |
3744 | struct font *font; | |
e80e09b4 KH |
3745 | int len, num; |
3746 | ||
733fd013 | 3747 | check_otf_features (otf_features); |
e80e09b4 | 3748 | CHECK_FONT_GET_OBJECT (font_object, font); |
733fd013 | 3749 | if (! font->driver->otf_drive) |
e80e09b4 KH |
3750 | error ("Font backend %s can't drive OpenType GSUB table", |
3751 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
3752 | CHECK_CONS (otf_features); |
3753 | CHECK_SYMBOL (XCAR (otf_features)); | |
3754 | val = XCDR (otf_features); | |
3755 | CHECK_SYMBOL (XCAR (val)); | |
3756 | val = XCDR (otf_features); | |
3757 | if (! NILP (val)) | |
3758 | CHECK_CONS (val); | |
e80e09b4 KH |
3759 | len = check_gstring (gstring_in); |
3760 | CHECK_VECTOR (gstring_out); | |
3761 | CHECK_NATNUM (from); | |
3762 | CHECK_NATNUM (to); | |
3763 | CHECK_NATNUM (index); | |
3764 | ||
3765 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
3766 | args_out_of_range_3 (from, to, make_number (len)); | |
3767 | if (XINT (index) >= ASIZE (gstring_out)) | |
3768 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
3769 | num = font->driver->otf_drive (font, otf_features, |
3770 | gstring_in, XINT (from), XINT (to), | |
3771 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
3772 | if (num < 0) |
3773 | return Qnil; | |
3774 | return make_number (num); | |
3775 | } | |
3776 | ||
e80e09b4 KH |
3777 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
3778 | 3, 3, 0, | |
3779 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
3780 | FEATURE-SPEC specifies which features of the font FONT-OBJECT to apply | |
3781 | in this format: | |
3782 | (SCRIPT LANGSYS FEATURE ...) | |
3783 | See the documentation of `font-otf-gsub' for more detail. | |
3784 | ||
3785 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
3786 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
3787 | character code corresponding to the glyph or nil if there's no | |
3788 | corresponding character. */) | |
733fd013 KH |
3789 | (font_object, character, otf_features) |
3790 | Lisp_Object font_object, character, otf_features; | |
e80e09b4 KH |
3791 | { |
3792 | struct font *font; | |
3793 | Lisp_Object gstring_in, gstring_out, g; | |
3794 | Lisp_Object alternates; | |
3795 | int i, num; | |
3796 | ||
3797 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 3798 | if (! font->driver->otf_drive) |
e950d6f1 KH |
3799 | error ("Font backend %s can't drive OpenType GSUB table", |
3800 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 3801 | CHECK_CHARACTER (character); |
733fd013 | 3802 | CHECK_CONS (otf_features); |
e80e09b4 KH |
3803 | |
3804 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
3805 | g = LGSTRING_GLYPH (gstring_in, 0); | |
3806 | LGLYPH_SET_CHAR (g, character); | |
3807 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); | |
733fd013 KH |
3808 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
3809 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
3810 | gstring_out = Ffont_make_gstring (font_object, |
3811 | make_number (ASIZE (gstring_out) * 2)); | |
3812 | alternates = Qnil; | |
3813 | for (i = 0; i < num; i++) | |
3814 | { | |
3815 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
3816 | int c = XINT (LGLYPH_CHAR (g)); | |
3817 | unsigned code = XUINT (LGLYPH_CODE (g)); | |
e80e09b4 KH |
3818 | |
3819 | alternates = Fcons (Fcons (make_number (code), | |
3820 | c > 0 ? make_number (c) : Qnil), | |
3821 | alternates); | |
3822 | } | |
3823 | return Fnreverse (alternates); | |
3824 | } | |
3825 | ||
c2f5bfd6 KH |
3826 | |
3827 | #ifdef FONT_DEBUG | |
3828 | ||
3829 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
3830 | doc: /* Open FONT-ENTITY. */) | |
3831 | (font_entity, size, frame) | |
3832 | Lisp_Object font_entity; | |
3833 | Lisp_Object size; | |
3834 | Lisp_Object frame; | |
3835 | { | |
3836 | int isize; | |
3837 | ||
3838 | CHECK_FONT_ENTITY (font_entity); | |
3839 | if (NILP (size)) | |
3840 | size = AREF (font_entity, FONT_SIZE_INDEX); | |
3841 | CHECK_NUMBER (size); | |
3842 | if (NILP (frame)) | |
3843 | frame = selected_frame; | |
3844 | CHECK_LIVE_FRAME (frame); | |
3845 | ||
3846 | isize = XINT (size); | |
1701724c KH |
3847 | if (isize == 0) |
3848 | isize = 120; | |
c2f5bfd6 KH |
3849 | if (isize < 0) |
3850 | isize = POINT_TO_PIXEL (- isize, XFRAME (frame)->resy); | |
3851 | ||
3852 | return font_open_entity (XFRAME (frame), font_entity, isize); | |
3853 | } | |
3854 | ||
3855 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
3856 | doc: /* Close FONT-OBJECT. */) | |
3857 | (font_object, frame) | |
3858 | Lisp_Object font_object, frame; | |
3859 | { | |
3860 | CHECK_FONT_OBJECT (font_object); | |
3861 | if (NILP (frame)) | |
3862 | frame = selected_frame; | |
3863 | CHECK_LIVE_FRAME (frame); | |
3864 | font_close_object (XFRAME (frame), font_object); | |
3865 | return Qnil; | |
3866 | } | |
3867 | ||
3868 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
3869 | doc: /* Return information about FONT-OBJECT. |
3870 | The value is a vector: | |
3871 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 3872 | CAPABILITY ] |
e80e09b4 KH |
3873 | |
3874 | NAME is a string of the font name (or nil if the font backend doesn't | |
3875 | provide a name). | |
3876 | ||
3877 | FILENAME is a string of the font file (or nil if the font backend | |
3878 | doesn't provide a file name). | |
3879 | ||
3880 | PIXEL-SIZE is a pixel size by which the font is opened. | |
3881 | ||
3882 | SIZE is a maximum advance width of the font in pixel. | |
3883 | ||
3884 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
3885 | pixel. | |
3886 | ||
e0708580 KH |
3887 | CAPABILITY is a list whose first element is a symbol representing the |
3888 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
3889 | remaining elements describes a detail of the font capability. | |
3890 | ||
3891 | If the font is OpenType font, the form of the list is | |
3892 | \(opentype GSUB GPOS) | |
3893 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
3894 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
3895 | lists of the format: | |
3896 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3897 | ||
3898 | If the font is not OpenType font, currently the length of the form is | |
3899 | one. | |
e80e09b4 KH |
3900 | |
3901 | SCRIPT is a symbol representing OpenType script tag. | |
3902 | ||
3903 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
3904 | representing the default langsys. | |
3905 | ||
3906 | FEATURE is a symbol representing OpenType feature tag. | |
3907 | ||
3908 | If the font is not OpenType font, OTF-CAPABILITY is nil. */) | |
c2f5bfd6 KH |
3909 | (font_object) |
3910 | Lisp_Object font_object; | |
3911 | { | |
3912 | struct font *font; | |
3913 | Lisp_Object val; | |
3914 | ||
3915 | CHECK_FONT_GET_OBJECT (font_object, font); | |
3916 | ||
3917 | val = Fmake_vector (make_number (9), Qnil); | |
e80e09b4 KH |
3918 | if (font->font.full_name) |
3919 | ASET (val, 0, make_unibyte_string (font->font.full_name, | |
3920 | strlen (font->font.full_name))); | |
c2f5bfd6 KH |
3921 | if (font->file_name) |
3922 | ASET (val, 1, make_unibyte_string (font->file_name, | |
3923 | strlen (font->file_name))); | |
3924 | ASET (val, 2, make_number (font->pixel_size)); | |
3925 | ASET (val, 3, make_number (font->font.size)); | |
3926 | ASET (val, 4, make_number (font->ascent)); | |
3927 | ASET (val, 5, make_number (font->descent)); | |
3928 | ASET (val, 6, make_number (font->font.space_width)); | |
3929 | ASET (val, 7, make_number (font->font.average_width)); | |
3930 | if (font->driver->otf_capability) | |
e0708580 KH |
3931 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
3932 | else | |
3933 | ASET (val, 8, Fcons (font->format, Qnil)); | |
c2f5bfd6 KH |
3934 | return val; |
3935 | } | |
3936 | ||
3937 | DEFUN ("get-font-glyphs", Fget_font_glyphs, Sget_font_glyphs, 2, 2, 0, | |
3938 | doc: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING. | |
3939 | Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */) | |
3940 | (font_object, string) | |
3941 | Lisp_Object font_object, string; | |
3942 | { | |
3943 | struct font *font; | |
3944 | int i, len; | |
3945 | Lisp_Object vec; | |
3946 | ||
3947 | CHECK_FONT_GET_OBJECT (font_object, font); | |
3948 | CHECK_STRING (string); | |
3949 | len = SCHARS (string); | |
3950 | vec = Fmake_vector (make_number (len), Qnil); | |
3951 | for (i = 0; i < len; i++) | |
3952 | { | |
3953 | Lisp_Object ch = Faref (string, make_number (i)); | |
3954 | Lisp_Object val; | |
3955 | int c = XINT (ch); | |
3956 | unsigned code; | |
3957 | struct font_metrics metrics; | |
3958 | ||
3959 | code = font->driver->encode_char (font, c); | |
3960 | if (code == FONT_INVALID_CODE) | |
3961 | continue; | |
3962 | val = Fmake_vector (make_number (6), Qnil); | |
3963 | if (code <= MOST_POSITIVE_FIXNUM) | |
3964 | ASET (val, 0, make_number (code)); | |
3965 | else | |
3966 | ASET (val, 0, Fcons (make_number (code >> 16), | |
3967 | make_number (code & 0xFFFF))); | |
3968 | font->driver->text_extents (font, &code, 1, &metrics); | |
3969 | ASET (val, 1, make_number (metrics.lbearing)); | |
3970 | ASET (val, 2, make_number (metrics.rbearing)); | |
3971 | ASET (val, 3, make_number (metrics.width)); | |
3972 | ASET (val, 4, make_number (metrics.ascent)); | |
3973 | ASET (val, 5, make_number (metrics.descent)); | |
3974 | ASET (vec, i, val); | |
3975 | } | |
3976 | return vec; | |
3977 | } | |
3978 | ||
ec6fe57c KH |
3979 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
3980 | doc: /* Return t iff font-spec SPEC matches with FONT. | |
3981 | FONT is a font-spec, font-entity, or font-object. */) | |
3982 | (spec, font) | |
3983 | Lisp_Object spec, font; | |
3984 | { | |
3985 | CHECK_FONT_SPEC (spec); | |
3986 | if (FONT_OBJECT_P (font)) | |
3987 | font = ((struct font *) XSAVE_VALUE (font)->pointer)->entity; | |
3988 | else if (! FONT_ENTITY_P (font)) | |
3989 | CHECK_FONT_SPEC (font); | |
3990 | ||
3991 | return (font_match_p (spec, font) ? Qt : Qnil); | |
3992 | } | |
3993 | ||
1701724c | 3994 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
10d16101 KH |
3995 | doc: /* Return a font-object for displaying a character at POSISTION. |
3996 | Optional second arg WINDOW, if non-nil, is a window displaying | |
3997 | the current buffer. It defaults to the currently selected window. */) | |
1701724c KH |
3998 | (position, window, string) |
3999 | Lisp_Object position, window, string; | |
10d16101 KH |
4000 | { |
4001 | struct window *w; | |
e3ee0340 | 4002 | EMACS_INT pos; |
10d16101 | 4003 | |
1701724c KH |
4004 | if (NILP (string)) |
4005 | { | |
4006 | CHECK_NUMBER_COERCE_MARKER (position); | |
4007 | pos = XINT (position); | |
4008 | if (pos < BEGV || pos >= ZV) | |
4009 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4010 | } |
4011 | else | |
4012 | { | |
4013 | EMACS_INT len; | |
4014 | unsigned char *str; | |
4015 | ||
4016 | CHECK_NUMBER (position); | |
4017 | CHECK_STRING (string); | |
4018 | pos = XINT (position); | |
4019 | if (pos < 0 || pos >= SCHARS (string)) | |
4020 | args_out_of_range (string, position); | |
1701724c | 4021 | } |
10d16101 KH |
4022 | if (NILP (window)) |
4023 | window = selected_window; | |
4024 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4025 | w = XWINDOW (window); |
10d16101 | 4026 | |
40fb53d6 | 4027 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4028 | } |
4029 | ||
c2f5bfd6 KH |
4030 | #if 0 |
4031 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4032 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4033 | The value is a number of glyphs drawn. | |
4034 | Type C-l to recover what previously shown. */) | |
4035 | (font_object, string) | |
4036 | Lisp_Object font_object, string; | |
4037 | { | |
4038 | Lisp_Object frame = selected_frame; | |
4039 | FRAME_PTR f = XFRAME (frame); | |
4040 | struct font *font; | |
4041 | struct face *face; | |
4042 | int i, len, width; | |
4043 | unsigned *code; | |
4044 | ||
4045 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4046 | CHECK_STRING (string); | |
4047 | len = SCHARS (string); | |
4048 | code = alloca (sizeof (unsigned) * len); | |
4049 | for (i = 0; i < len; i++) | |
4050 | { | |
4051 | Lisp_Object ch = Faref (string, make_number (i)); | |
4052 | Lisp_Object val; | |
4053 | int c = XINT (ch); | |
4054 | ||
4055 | code[i] = font->driver->encode_char (font, c); | |
4056 | if (code[i] == FONT_INVALID_CODE) | |
4057 | break; | |
4058 | } | |
4059 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4060 | face->fontp = font; | |
4061 | if (font->driver->prepare_face) | |
4062 | font->driver->prepare_face (f, face); | |
4063 | width = font->driver->text_extents (font, code, i, NULL); | |
4064 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4065 | if (font->driver->done_face) | |
4066 | font->driver->done_face (f, face); | |
4067 | face->fontp = NULL; | |
4068 | return make_number (len); | |
4069 | } | |
4070 | #endif | |
4071 | ||
4072 | #endif /* FONT_DEBUG */ | |
4073 | ||
4074 | \f | |
4075 | extern void syms_of_ftfont P_ (()); | |
4076 | extern void syms_of_xfont P_ (()); | |
4077 | extern void syms_of_xftfont P_ (()); | |
4078 | extern void syms_of_ftxfont P_ (()); | |
4079 | extern void syms_of_bdffont P_ (()); | |
4080 | extern void syms_of_w32font P_ (()); | |
4081 | extern void syms_of_atmfont P_ (()); | |
4082 | ||
4083 | void | |
4084 | syms_of_font () | |
4085 | { | |
4086 | sort_shift_bits[FONT_SLANT_INDEX] = 0; | |
4087 | sort_shift_bits[FONT_WEIGHT_INDEX] = 7; | |
4088 | sort_shift_bits[FONT_SIZE_INDEX] = 14; | |
4089 | sort_shift_bits[FONT_WIDTH_INDEX] = 21; | |
4090 | sort_shift_bits[FONT_ADSTYLE_INDEX] = 28; | |
4091 | sort_shift_bits[FONT_FOUNDRY_INDEX] = 29; | |
4092 | sort_shift_bits[FONT_FAMILY_INDEX] = 30; | |
4093 | sort_shift_bits[FONT_REGISTRY_INDEX] = 31; | |
fe5ddfbc | 4094 | /* Note that sort_shift_bits[FONT_TYPE_INDEX] is never used. */ |
c2f5bfd6 KH |
4095 | |
4096 | staticpro (&font_style_table); | |
4097 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
4098 | ||
4099 | staticpro (&font_family_alist); | |
4100 | font_family_alist = Qnil; | |
4101 | ||
1701724c KH |
4102 | staticpro (&font_charset_alist); |
4103 | font_charset_alist = Qnil; | |
4104 | ||
e0708580 | 4105 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 4106 | |
1bb1d99b KH |
4107 | DEFSYM (Qiso8859_1, "iso8859-1"); |
4108 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
4109 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 4110 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 4111 | |
c2f5bfd6 KH |
4112 | DEFSYM (QCotf, ":otf"); |
4113 | DEFSYM (QClanguage, ":language"); | |
4114 | DEFSYM (QCscript, ":script"); | |
4c496d0d | 4115 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
4116 | |
4117 | DEFSYM (QCfoundry, ":foundry"); | |
4118 | DEFSYM (QCadstyle, ":adstyle"); | |
4119 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
4120 | DEFSYM (QCspacing, ":spacing"); |
4121 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 4122 | DEFSYM (QCscalable, ":scalable"); |
c2f5bfd6 KH |
4123 | DEFSYM (QCextra, ":extra"); |
4124 | ||
ec6fe57c KH |
4125 | DEFSYM (Qc, "c"); |
4126 | DEFSYM (Qm, "m"); | |
4127 | DEFSYM (Qp, "p"); | |
4128 | DEFSYM (Qd, "d"); | |
4129 | ||
c2f5bfd6 KH |
4130 | staticpro (&null_string); |
4131 | null_string = build_string (""); | |
4132 | staticpro (&null_vector); | |
4133 | null_vector = Fmake_vector (make_number (0), Qnil); | |
4134 | ||
4135 | staticpro (&scratch_font_spec); | |
4136 | scratch_font_spec = Ffont_spec (0, NULL); | |
4137 | staticpro (&scratch_font_prefer); | |
4138 | scratch_font_prefer = Ffont_spec (0, NULL); | |
4139 | ||
733fd013 KH |
4140 | #ifdef HAVE_LIBOTF |
4141 | staticpro (&otf_list); | |
4142 | otf_list = Qnil; | |
4143 | #endif | |
4144 | ||
c2f5bfd6 KH |
4145 | defsubr (&Sfontp); |
4146 | defsubr (&Sfont_spec); | |
4147 | defsubr (&Sfont_get); | |
4148 | defsubr (&Sfont_put); | |
4149 | defsubr (&Slist_fonts); | |
4150 | defsubr (&Slist_families); | |
4151 | defsubr (&Sfind_font); | |
4152 | defsubr (&Sfont_xlfd_name); | |
4153 | defsubr (&Sclear_font_cache); | |
4154 | defsubr (&Sinternal_set_font_style_table); | |
4155 | defsubr (&Sfont_make_gstring); | |
4156 | defsubr (&Sfont_fill_gstring); | |
1701724c | 4157 | defsubr (&Sfont_shape_text); |
733fd013 | 4158 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 4159 | defsubr (&Sfont_otf_alternates); |
c2f5bfd6 KH |
4160 | |
4161 | #ifdef FONT_DEBUG | |
4162 | defsubr (&Sopen_font); | |
4163 | defsubr (&Sclose_font); | |
4164 | defsubr (&Squery_font); | |
4165 | defsubr (&Sget_font_glyphs); | |
ec6fe57c | 4166 | defsubr (&Sfont_match_p); |
10d16101 | 4167 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
4168 | #if 0 |
4169 | defsubr (&Sdraw_string); | |
4170 | #endif | |
4171 | #endif /* FONT_DEBUG */ | |
4172 | ||
1701724c KH |
4173 | #ifdef USE_FONT_BACKEND |
4174 | if (enable_font_backend) | |
4175 | { | |
c2f5bfd6 | 4176 | #ifdef HAVE_FREETYPE |
1701724c | 4177 | syms_of_ftfont (); |
c2f5bfd6 | 4178 | #ifdef HAVE_X_WINDOWS |
1701724c KH |
4179 | syms_of_xfont (); |
4180 | syms_of_ftxfont (); | |
c2f5bfd6 | 4181 | #ifdef HAVE_XFT |
1701724c | 4182 | syms_of_xftfont (); |
c2f5bfd6 KH |
4183 | #endif /* HAVE_XFT */ |
4184 | #endif /* HAVE_X_WINDOWS */ | |
4185 | #else /* not HAVE_FREETYPE */ | |
4186 | #ifdef HAVE_X_WINDOWS | |
1701724c | 4187 | syms_of_xfont (); |
c2f5bfd6 KH |
4188 | #endif /* HAVE_X_WINDOWS */ |
4189 | #endif /* not HAVE_FREETYPE */ | |
4190 | #ifdef HAVE_BDFFONT | |
1701724c | 4191 | syms_of_bdffont (); |
c2f5bfd6 KH |
4192 | #endif /* HAVE_BDFFONT */ |
4193 | #ifdef WINDOWSNT | |
1701724c | 4194 | syms_of_w32font (); |
c2f5bfd6 KH |
4195 | #endif /* WINDOWSNT */ |
4196 | #ifdef MAC_OS | |
1701724c | 4197 | syms_of_atmfont (); |
c2f5bfd6 | 4198 | #endif /* MAC_OS */ |
1701724c KH |
4199 | } |
4200 | #endif /* USE_FONT_BACKEND */ | |
c2f5bfd6 | 4201 | } |
885b7d09 MB |
4202 | |
4203 | /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846 | |
4204 | (do not change this comment) */ |