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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> | |
28 | ||
29 | #include "lisp.h" | |
30 | #include "buffer.h" | |
31 | #include "frame.h" | |
10d16101 | 32 | #include "window.h" |
c2f5bfd6 KH |
33 | #include "dispextern.h" |
34 | #include "charset.h" | |
35 | #include "character.h" | |
36 | #include "composite.h" | |
37 | #include "fontset.h" | |
38 | #include "font.h" | |
39 | ||
ec6fe57c | 40 | #ifndef FONT_DEBUG |
c2f5bfd6 | 41 | #define FONT_DEBUG |
ec6fe57c | 42 | #endif |
c2f5bfd6 KH |
43 | |
44 | #ifdef FONT_DEBUG | |
45 | #undef xassert | |
46 | #define xassert(X) do {if (!(X)) abort ();} while (0) | |
47 | #else | |
48 | #define xassert(X) (void) 0 | |
49 | #endif | |
50 | ||
51 | int enable_font_backend; | |
52 | ||
53 | Lisp_Object Qfontp; | |
54 | ||
e0708580 KH |
55 | Lisp_Object Qopentype; |
56 | ||
1bb1d99b | 57 | /* Important character set symbols. */ |
cf96c5c2 | 58 | Lisp_Object Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 59 | |
c2f5bfd6 KH |
60 | /* Like CHECK_FONT_SPEC but also validate properties of the font-spec, |
61 | and set X to the validated result. */ | |
62 | ||
63 | #define CHECK_VALIDATE_FONT_SPEC(x) \ | |
64 | do { \ | |
65 | if (! FONT_SPEC_P (x)) x = wrong_type_argument (Qfont, x); \ | |
66 | x = font_prop_validate (x); \ | |
67 | } while (0) | |
68 | ||
69 | /* Number of pt per inch (from the TeXbook). */ | |
70 | #define PT_PER_INCH 72.27 | |
71 | ||
9331887d | 72 | /* Return a pixel size (integer) corresponding to POINT size (double) |
ec6fe57c KH |
73 | on resolution DPI. */ |
74 | #define POINT_TO_PIXEL(POINT, DPI) ((POINT) * (DPI) / PT_PER_INCH + 0.5) | |
c2f5bfd6 | 75 | |
9331887d | 76 | /* Return a point size (double) corresponding to POINT size (integer) |
ec6fe57c KH |
77 | on resolution DPI. */ |
78 | #define PIXEL_TO_POINT(PIXEL, DPI) ((PIXEL) * PT_PER_INCH * 10 / (DPI) + 0.5) | |
c2f5bfd6 KH |
79 | |
80 | /* Special string of zero length. It is used to specify a NULL name | |
81 | in a font properties (e.g. adstyle). We don't use the symbol of | |
82 | NULL name because it's confusing (Lisp printer prints nothing for | |
83 | it). */ | |
84 | Lisp_Object null_string; | |
85 | ||
86 | /* Special vector of zero length. This is repeatedly used by (struct | |
87 | font_driver *)->list when a specified font is not found. */ | |
88 | Lisp_Object null_vector; | |
89 | ||
90 | /* Vector of 3 elements. Each element is an alist for one of font | |
91 | style properties (weight, slant, width). The alist contains a | |
92 | mapping between symbolic property values (e.g. `medium' for weight) | |
93 | and numeric property values (e.g. 100). So, it looks like this: | |
94 | [((thin . 0) ... (heavy . 210)) | |
95 | ((ro . 0) ... (ot . 210)) | |
96 | ((ultracondensed . 50) ... (wide . 200))] */ | |
97 | static Lisp_Object font_style_table; | |
98 | ||
99 | /* Alist of font family vs the corresponding aliases. | |
100 | Each element has this form: | |
101 | (FAMILY ALIAS1 ALIAS2 ...) */ | |
102 | ||
103 | static Lisp_Object font_family_alist; | |
104 | ||
105 | /* Symbols representing keys of normal font properties. */ | |
106 | extern Lisp_Object QCtype, QCfamily, QCweight, QCslant, QCwidth, QCsize, QCname; | |
107 | Lisp_Object QCfoundry, QCadstyle, QCregistry, QCextra; | |
108 | /* Symbols representing keys of font extra info. */ | |
ec6fe57c KH |
109 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClanguage, QCscript; |
110 | /* Symbols representing values of font spacing property. */ | |
111 | Lisp_Object Qc, Qm, Qp, Qd; | |
c2f5bfd6 KH |
112 | |
113 | /* List of all font drivers. All font-backends (XXXfont.c) call | |
114 | add_font_driver in syms_of_XXXfont to register the font-driver | |
115 | here. */ | |
116 | static struct font_driver_list *font_driver_list; | |
117 | ||
ec6fe57c | 118 | static int font_pixel_size P_ ((FRAME_PTR f, Lisp_Object)); |
c2f5bfd6 KH |
119 | static Lisp_Object prop_name_to_numeric P_ ((enum font_property_index, |
120 | Lisp_Object)); | |
121 | static Lisp_Object prop_numeric_to_name P_ ((enum font_property_index, int)); | |
122 | static Lisp_Object font_open_entity P_ ((FRAME_PTR, Lisp_Object, int)); | |
ec6fe57c | 123 | static void build_font_family_alist P_ ((void)); |
c2f5bfd6 KH |
124 | |
125 | /* Number of registered font drivers. */ | |
126 | static int num_font_drivers; | |
127 | ||
9331887d | 128 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 129 | |
9331887d KH |
130 | static int |
131 | font_pixel_size (f, spec) | |
132 | FRAME_PTR f; | |
133 | Lisp_Object spec; | |
134 | { | |
135 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); | |
136 | double point_size; | |
137 | int pixel_size, dpi; | |
138 | Lisp_Object extra, val; | |
139 | ||
140 | if (INTEGERP (size)) | |
141 | return XINT (size); | |
142 | if (NILP (size)) | |
143 | return 0; | |
144 | point_size = XFLOAT_DATA (size); | |
145 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
27d3d693 | 146 | val = assq_no_quit (QCdpi, extra); |
ec6fe57c KH |
147 | if (CONSP (val)) |
148 | { | |
149 | if (INTEGERP (XCDR (val))) | |
150 | dpi = XINT (XCDR (val)); | |
151 | else | |
152 | dpi = XFLOAT_DATA (XCDR (val)) + 0.5; | |
153 | } | |
9331887d KH |
154 | else |
155 | dpi = f->resy; | |
156 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
157 | return pixel_size; | |
158 | } | |
159 | ||
c2f5bfd6 KH |
160 | /* Return a numeric value corresponding to PROP's NAME (symbol). If |
161 | NAME is not registered in font_style_table, return Qnil. PROP must | |
162 | be one of FONT_{WEIGHT|SLANT|SWIDTH}_INDEX. */ | |
163 | ||
164 | static Lisp_Object | |
165 | prop_name_to_numeric (prop, name) | |
166 | enum font_property_index prop; | |
167 | Lisp_Object name; | |
168 | { | |
169 | int table_index = prop - FONT_WEIGHT_INDEX; | |
170 | Lisp_Object val; | |
171 | ||
172 | val = assq_no_quit (name, AREF (font_style_table, table_index)); | |
173 | return (NILP (val) ? Qnil : XCDR (val)); | |
174 | } | |
175 | ||
176 | ||
177 | /* Return a name (symbol) corresponding to PROP's NUMERIC value. If | |
178 | no name is registered for NUMERIC in font_style_table, return a | |
179 | symbol of integer name (e.g. `123'). PROP must be one of | |
180 | FONT_{WEIGHT|SLANT|SWIDTH}_INDEX. */ | |
181 | ||
182 | static Lisp_Object | |
183 | prop_numeric_to_name (prop, numeric) | |
184 | enum font_property_index prop; | |
185 | int numeric; | |
186 | { | |
187 | int table_index = prop - FONT_WEIGHT_INDEX; | |
188 | Lisp_Object table = AREF (font_style_table, table_index); | |
189 | char buf[10]; | |
190 | ||
191 | while (! NILP (table)) | |
192 | { | |
193 | if (XINT (XCDR (XCAR (table))) >= numeric) | |
194 | { | |
195 | if (XINT (XCDR (XCAR (table))) == numeric) | |
196 | return XCAR (XCAR (table)); | |
197 | else | |
198 | break; | |
199 | } | |
200 | table = XCDR (table); | |
201 | } | |
202 | sprintf (buf, "%d", numeric); | |
203 | return intern (buf); | |
204 | } | |
205 | ||
206 | ||
207 | /* Return a symbol whose name is STR (length LEN). If STR contains | |
208 | uppercase letters, downcase them in advance. */ | |
209 | ||
210 | Lisp_Object | |
211 | intern_downcase (str, len) | |
212 | char *str; | |
213 | int len; | |
214 | { | |
215 | char *buf; | |
216 | int i; | |
217 | ||
218 | for (i = 0; i < len; i++) | |
219 | if (isupper (str[i])) | |
220 | break; | |
221 | if (i == len) | |
222 | return Fintern (make_unibyte_string (str, len), Qnil); | |
223 | buf = alloca (len); | |
224 | if (! buf) | |
225 | return Fintern (null_string, Qnil); | |
226 | bcopy (str, buf, len); | |
227 | for (; i < len; i++) | |
228 | if (isascii (buf[i])) | |
229 | buf[i] = tolower (buf[i]); | |
230 | return Fintern (make_unibyte_string (buf, len), Qnil); | |
231 | } | |
232 | ||
233 | extern Lisp_Object Vface_alternative_font_family_alist; | |
234 | ||
235 | static void | |
236 | build_font_family_alist () | |
237 | { | |
238 | Lisp_Object alist = Vface_alternative_font_family_alist; | |
239 | ||
240 | for (; CONSP (alist); alist = XCDR (alist)) | |
241 | { | |
242 | Lisp_Object tail, elt; | |
243 | ||
244 | for (tail = XCAR (alist), elt = Qnil ; CONSP (tail); tail = XCDR (tail)) | |
245 | elt = nconc2 (elt, Fcons (Fintern (XCAR (tail), Qnil), Qnil)); | |
246 | font_family_alist = Fcons (elt, font_family_alist); | |
247 | } | |
248 | } | |
249 | ||
250 | \f | |
251 | /* Font property validater. */ | |
252 | ||
ec6fe57c KH |
253 | static Lisp_Object font_prop_validate_symbol P_ ((enum font_property_index, |
254 | Lisp_Object, Lisp_Object)); | |
255 | static Lisp_Object font_prop_validate_style P_ ((enum font_property_index, | |
256 | Lisp_Object, Lisp_Object)); | |
257 | static Lisp_Object font_prop_validate_non_neg P_ ((enum font_property_index, | |
258 | Lisp_Object, Lisp_Object)); | |
259 | static Lisp_Object font_prop_validate_spacing P_ ((enum font_property_index, | |
260 | Lisp_Object, Lisp_Object)); | |
261 | static int get_font_prop_index P_ ((Lisp_Object, int)); | |
262 | static Lisp_Object font_prop_validate P_ ((Lisp_Object)); | |
c2f5bfd6 KH |
263 | |
264 | static Lisp_Object | |
ec6fe57c KH |
265 | font_prop_validate_symbol (prop_index, prop, val) |
266 | enum font_property_index prop_index; | |
267 | Lisp_Object prop, val; | |
c2f5bfd6 | 268 | { |
ec6fe57c KH |
269 | if (EQ (prop, QCotf)) |
270 | return (SYMBOLP (val) ? val : Qerror); | |
c2f5bfd6 KH |
271 | if (STRINGP (val)) |
272 | val = (SCHARS (val) == 0 ? null_string | |
273 | : intern_downcase ((char *) SDATA (val), SBYTES (val))); | |
274 | else if (SYMBOLP (val)) | |
275 | { | |
276 | if (SCHARS (SYMBOL_NAME (val)) == 0) | |
277 | val = null_string; | |
278 | } | |
279 | else | |
280 | val = Qerror; | |
281 | return val; | |
282 | } | |
283 | ||
284 | static Lisp_Object | |
ec6fe57c KH |
285 | font_prop_validate_style (prop_index, prop, val) |
286 | enum font_property_index prop_index; | |
287 | Lisp_Object prop, val; | |
c2f5bfd6 KH |
288 | { |
289 | if (! INTEGERP (val)) | |
290 | { | |
291 | if (STRINGP (val)) | |
292 | val = intern_downcase ((char *) SDATA (val), SBYTES (val)); | |
293 | if (! SYMBOLP (val)) | |
294 | val = Qerror; | |
295 | else | |
296 | { | |
ec6fe57c | 297 | val = prop_name_to_numeric (prop_index, val); |
c2f5bfd6 KH |
298 | if (NILP (val)) |
299 | val = Qerror; | |
300 | } | |
301 | } | |
302 | return val; | |
303 | } | |
304 | ||
305 | static Lisp_Object | |
ec6fe57c KH |
306 | font_prop_validate_non_neg (prop_index, prop, val) |
307 | enum font_property_index prop_index; | |
308 | Lisp_Object prop, val; | |
c2f5bfd6 KH |
309 | { |
310 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
311 | ? val : Qerror); | |
312 | } | |
313 | ||
314 | static Lisp_Object | |
ec6fe57c KH |
315 | font_prop_validate_spacing (prop_index, prop, val) |
316 | enum font_property_index prop_index; | |
317 | Lisp_Object prop, val; | |
318 | { | |
319 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
320 | return val; | |
321 | if (EQ (val, Qc)) | |
322 | return make_number (FONT_SPACING_CHARCELL); | |
323 | if (EQ (val, Qm)) | |
324 | return make_number (FONT_SPACING_MONO); | |
325 | if (EQ (val, Qp)) | |
326 | return make_number (FONT_SPACING_PROPORTIONAL); | |
327 | return Qerror; | |
328 | } | |
329 | ||
330 | /* Structure of known font property keys and validater of the | |
331 | values. */ | |
c2f5bfd6 KH |
332 | struct |
333 | { | |
ec6fe57c | 334 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 335 | Lisp_Object *key; |
ec6fe57c KH |
336 | /* Function to validate the value VAL, or NULL if any value is ok. */ |
337 | Lisp_Object (*validater) P_ ((enum font_property_index prop_index, | |
338 | Lisp_Object prop, Lisp_Object val)); | |
339 | } font_property_table[] = | |
340 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
341 | { &QCfoundry, font_prop_validate_symbol }, |
342 | { &QCfamily, font_prop_validate_symbol }, | |
343 | { &QCadstyle, font_prop_validate_symbol }, | |
344 | { &QCregistry, font_prop_validate_symbol }, | |
345 | { &QCweight, font_prop_validate_style }, | |
346 | { &QCslant, font_prop_validate_style }, | |
347 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c KH |
348 | { &QCsize, font_prop_validate_non_neg }, |
349 | { &QClanguage, font_prop_validate_symbol }, | |
350 | { &QCscript, font_prop_validate_symbol }, | |
351 | { &QCdpi, font_prop_validate_non_neg }, | |
352 | { &QCspacing, font_prop_validate_spacing }, | |
353 | { &QCscalable, NULL }, | |
354 | { &QCotf, font_prop_validate_symbol } | |
c2f5bfd6 KH |
355 | }; |
356 | ||
ec6fe57c KH |
357 | #define FONT_PROPERTY_TABLE_SIZE \ |
358 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
359 | ||
360 | static int | |
361 | get_font_prop_index (key, from) | |
c2f5bfd6 | 362 | Lisp_Object key; |
ec6fe57c | 363 | int from; |
c2f5bfd6 | 364 | { |
ec6fe57c KH |
365 | for (; from < FONT_PROPERTY_TABLE_SIZE; from++) |
366 | if (EQ (key, *font_property_table[from].key)) | |
367 | return from; | |
368 | return -1; | |
c2f5bfd6 KH |
369 | } |
370 | ||
371 | static Lisp_Object | |
372 | font_prop_validate (spec) | |
373 | Lisp_Object spec; | |
374 | { | |
ec6fe57c KH |
375 | int i; |
376 | Lisp_Object prop, val, extra; | |
c2f5bfd6 | 377 | |
ec6fe57c | 378 | for (i = FONT_TYPE_INDEX; i < FONT_EXTRA_INDEX; i++) |
c2f5bfd6 KH |
379 | { |
380 | if (! NILP (AREF (spec, i))) | |
381 | { | |
ec6fe57c KH |
382 | prop = *font_property_table[i].key; |
383 | val = (font_property_table[i].validater) (i, prop, AREF (spec, i)); | |
c2f5bfd6 | 384 | if (EQ (val, Qerror)) |
ec6fe57c KH |
385 | Fsignal (Qfont, list2 (build_string ("invalid font property"), |
386 | Fcons (prop, AREF (spec, i)))); | |
c2f5bfd6 KH |
387 | ASET (spec, i, val); |
388 | } | |
389 | } | |
ec6fe57c KH |
390 | for (extra = AREF (spec, FONT_EXTRA_INDEX); |
391 | CONSP (extra); extra = XCDR (extra)) | |
392 | { | |
393 | Lisp_Object elt = XCAR (extra); | |
394 | ||
395 | prop = XCAR (elt); | |
396 | i = get_font_prop_index (prop, FONT_EXTRA_INDEX); | |
397 | if (i >= 0 | |
398 | && font_property_table[i].validater) | |
399 | { | |
400 | val = (font_property_table[i].validater) (i, prop, XCDR (elt)); | |
401 | if (EQ (val, Qerror)) | |
402 | Fsignal (Qfont, list2 (build_string ("invalid font property"), | |
403 | elt)); | |
404 | XSETCDR (elt, val); | |
405 | } | |
406 | } | |
c2f5bfd6 KH |
407 | return spec; |
408 | } | |
409 | ||
01dbeb0b | 410 | Lisp_Object |
ec6fe57c | 411 | font_put_extra (font, prop, val) |
9331887d | 412 | Lisp_Object font, prop, val; |
9331887d KH |
413 | { |
414 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 415 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
416 | |
417 | if (NILP (slot)) | |
418 | { | |
419 | extra = Fcons (Fcons (prop, val), extra); | |
420 | ASET (font, FONT_EXTRA_INDEX, extra); | |
ec6fe57c | 421 | return val; |
9331887d | 422 | } |
9331887d | 423 | XSETCDR (slot, val); |
ec6fe57c | 424 | return val; |
9331887d KH |
425 | } |
426 | ||
c2f5bfd6 KH |
427 | \f |
428 | /* Font name parser and unparser */ | |
429 | ||
ec6fe57c KH |
430 | static Lisp_Object intern_font_field P_ ((char *, int)); |
431 | static int parse_matrix P_ ((char *)); | |
432 | static int font_expand_wildcards P_ ((Lisp_Object *, int)); | |
433 | static int font_parse_name P_ ((char *, Lisp_Object)); | |
c2f5bfd6 | 434 | |
ec6fe57c | 435 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
436 | enum xlfd_field_index |
437 | { | |
438 | XLFD_FOUNDRY_INDEX, | |
439 | XLFD_FAMILY_INDEX, | |
440 | XLFD_WEIGHT_INDEX, | |
441 | XLFD_SLANT_INDEX, | |
442 | XLFD_SWIDTH_INDEX, | |
443 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
444 | XLFD_PIXEL_INDEX, |
445 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
446 | XLFD_RESX_INDEX, |
447 | XLFD_RESY_INDEX, | |
448 | XLFD_SPACING_INDEX, | |
449 | XLFD_AVGWIDTH_INDEX, | |
450 | XLFD_REGISTRY_INDEX, | |
451 | XLFD_ENCODING_INDEX, | |
452 | XLFD_LAST_INDEX | |
453 | }; | |
454 | ||
ec6fe57c | 455 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
456 | enum xlfd_field_mask |
457 | { | |
458 | XLFD_FOUNDRY_MASK = 0x0001, | |
459 | XLFD_FAMILY_MASK = 0x0002, | |
460 | XLFD_WEIGHT_MASK = 0x0004, | |
461 | XLFD_SLANT_MASK = 0x0008, | |
462 | XLFD_SWIDTH_MASK = 0x0010, | |
463 | XLFD_ADSTYLE_MASK = 0x0020, | |
464 | XLFD_PIXEL_MASK = 0x0040, | |
465 | XLFD_POINT_MASK = 0x0080, | |
466 | XLFD_RESX_MASK = 0x0100, | |
467 | XLFD_RESY_MASK = 0x0200, | |
468 | XLFD_SPACING_MASK = 0x0400, | |
469 | XLFD_AVGWIDTH_MASK = 0x0800, | |
470 | XLFD_REGISTRY_MASK = 0x1000, | |
471 | XLFD_ENCODING_MASK = 0x2000 | |
472 | }; | |
473 | ||
474 | ||
ec6fe57c KH |
475 | /* Return a Lispy value of a XLFD font field at STR and LEN bytes. |
476 | If LEN is zero, it returns `null_string'. | |
477 | If STR is "*", it returns nil. | |
478 | If all characters in STR are digits, it returns an integer. | |
479 | Otherwise, it returns a symbol interned from downcased STR. */ | |
c2f5bfd6 KH |
480 | |
481 | static Lisp_Object | |
4485a28e KH |
482 | intern_font_field (str, len) |
483 | char *str; | |
484 | int len; | |
c2f5bfd6 | 485 | { |
4485a28e | 486 | int i; |
c2f5bfd6 KH |
487 | |
488 | if (len == 0) | |
489 | return null_string; | |
490 | if (*str == '*' && len == 1) | |
491 | return Qnil; | |
4485a28e KH |
492 | if (isdigit (*str)) |
493 | { | |
494 | for (i = 1; i < len; i++) | |
495 | if (! isdigit (str[i])) | |
496 | break; | |
497 | if (i == len) | |
498 | return make_number (atoi (str)); | |
499 | } | |
c2f5bfd6 KH |
500 | return intern_downcase (str, len); |
501 | } | |
502 | ||
503 | /* Parse P pointing the pixel/point size field of the form | |
504 | `[A B C D]' which specifies a transformation matrix: | |
505 | ||
506 | A B 0 | |
507 | C D 0 | |
508 | 0 0 1 | |
509 | ||
510 | by which all glyphs of the font are transformed. The spec says | |
511 | that scalar value N for the pixel/point size is equivalent to: | |
512 | A = N * resx/resy, B = C = 0, D = N. | |
513 | ||
514 | Return the scalar value N if the form is valid. Otherwise return | |
515 | -1. */ | |
516 | ||
517 | static int | |
518 | parse_matrix (p) | |
519 | char *p; | |
520 | { | |
521 | double matrix[4]; | |
522 | char *end; | |
523 | int i; | |
524 | ||
525 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
526 | { | |
527 | if (*p == '~') | |
528 | matrix[i] = - strtod (p + 1, &end); | |
529 | else | |
530 | matrix[i] = strtod (p, &end); | |
531 | p = end; | |
532 | } | |
533 | return (i == 4 ? (int) matrix[3] : -1); | |
534 | } | |
535 | ||
4485a28e KH |
536 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
537 | multiple fields to fill in all 14 XLFD fields while restring a | |
538 | field position by its contents. */ | |
539 | ||
ec6fe57c | 540 | static int |
4485a28e KH |
541 | font_expand_wildcards (field, n) |
542 | Lisp_Object field[XLFD_LAST_INDEX]; | |
543 | int n; | |
544 | { | |
545 | /* Copy of FIELD. */ | |
546 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
547 | /* Array of information about where this element can go. Nth | |
548 | element is for Nth element of FIELD. */ | |
549 | struct { | |
550 | /* Minimum possible field. */ | |
551 | int from; | |
552 | /* Maxinum possible field. */ | |
553 | int to; | |
554 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
555 | int mask; | |
556 | } range[XLFD_LAST_INDEX]; | |
557 | int i, j; | |
ec6fe57c | 558 | int range_from, range_to; |
4485a28e KH |
559 | unsigned range_mask; |
560 | ||
561 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
562 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
563 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 564 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 565 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
566 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
567 | ||
568 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
569 | field. The value is shifted to left one bit by one in the | |
570 | following loop. */ | |
571 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
572 | range_mask = (range_mask << 1) | 1; | |
573 | ||
ec6fe57c KH |
574 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
575 | position-based retriction for FIELD[I]. */ | |
576 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
577 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 578 | { |
4485a28e KH |
579 | Lisp_Object val = field[i]; |
580 | ||
581 | tmp[i] = val; | |
582 | if (NILP (val)) | |
583 | { | |
584 | /* Wildcard. */ | |
585 | range[i].from = range_from; | |
586 | range[i].to = range_to; | |
587 | range[i].mask = range_mask; | |
588 | } | |
589 | else | |
590 | { | |
591 | /* The triplet FROM, TO, and MASK is a value-based | |
592 | retriction for FIELD[I]. */ | |
593 | int from, to; | |
594 | unsigned mask; | |
595 | ||
596 | if (INTEGERP (val)) | |
597 | { | |
598 | int numeric = XINT (val); | |
599 | ||
ef18374f KH |
600 | if (i + 1 == n) |
601 | from = to = XLFD_ENCODING_INDEX, | |
602 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
603 | else if (numeric == 0) |
604 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
605 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
606 | else if (numeric <= 48) |
607 | from = to = XLFD_PIXEL_INDEX, | |
608 | mask = XLFD_PIXEL_MASK; | |
ec6fe57c KH |
609 | else |
610 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
4485a28e KH |
611 | mask = XLFD_LARGENUM_MASK; |
612 | } | |
613 | else if (EQ (val, null_string)) | |
614 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, | |
615 | mask = XLFD_NULL_MASK; | |
616 | else if (i == 0) | |
617 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
618 | else if (i + 1 == n) | |
619 | { | |
620 | Lisp_Object name = SYMBOL_NAME (val); | |
621 | ||
622 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
623 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
624 | mask = XLFD_REGENC_MASK; | |
625 | else | |
626 | from = to = XLFD_ENCODING_INDEX, | |
627 | mask = XLFD_ENCODING_MASK; | |
628 | } | |
ef18374f KH |
629 | else if (range_from <= XLFD_WEIGHT_INDEX |
630 | && range_to >= XLFD_WEIGHT_INDEX | |
631 | && !NILP (prop_name_to_numeric (FONT_WEIGHT_INDEX, val))) | |
4485a28e | 632 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
633 | else if (range_from <= XLFD_SLANT_INDEX |
634 | && range_to >= XLFD_SLANT_INDEX | |
635 | && !NILP (prop_name_to_numeric (FONT_SLANT_INDEX, val))) | |
4485a28e | 636 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
637 | else if (range_from <= XLFD_SWIDTH_INDEX |
638 | && range_to >= XLFD_SWIDTH_INDEX | |
639 | && !NILP (prop_name_to_numeric (FONT_WIDTH_INDEX, val))) | |
4485a28e KH |
640 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
641 | else | |
642 | { | |
ec6fe57c | 643 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
644 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
645 | else | |
646 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
647 | mask = XLFD_SYMBOL_MASK; | |
648 | } | |
649 | ||
650 | /* Merge position-based and value-based restrictions. */ | |
651 | mask &= range_mask; | |
652 | while (from < range_from) | |
653 | mask &= ~(1 << from++); | |
654 | while (from < 14 && ! (mask & (1 << from))) | |
655 | from++; | |
656 | while (to > range_to) | |
657 | mask &= ~(1 << to--); | |
658 | while (to >= 0 && ! (mask & (1 << to))) | |
659 | to--; | |
660 | if (from > to) | |
661 | return -1; | |
662 | range[i].from = from; | |
663 | range[i].to = to; | |
664 | range[i].mask = mask; | |
665 | ||
666 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
667 | { |
668 | /* The range is narrowed by value-based restrictions. | |
669 | Reflect it to the other fields. */ | |
670 | ||
671 | /* Following fields should be after FROM. */ | |
672 | range_from = from; | |
673 | /* Preceding fields should be before TO. */ | |
674 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
675 | { | |
676 | /* Check FROM for non-wildcard field. */ | |
677 | if (! NILP (tmp[j]) && range[j].from < from) | |
678 | { | |
679 | while (range[j].from < from) | |
680 | range[j].mask &= ~(1 << range[j].from++); | |
681 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
682 | from++; | |
683 | range[j].from = from; | |
684 | } | |
685 | else | |
686 | from = range[j].from; | |
687 | if (range[j].to > to) | |
688 | { | |
689 | while (range[j].to > to) | |
690 | range[j].mask &= ~(1 << range[j].to--); | |
691 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
692 | to--; | |
693 | range[j].to = to; | |
694 | } | |
695 | else | |
696 | to = range[j].to; | |
697 | if (from > to) | |
698 | return -1; | |
699 | } | |
700 | } | |
4485a28e KH |
701 | } |
702 | } | |
703 | ||
704 | /* Decide all fileds from restrictions in RANGE. */ | |
705 | for (i = j = 0; i < n ; i++) | |
706 | { | |
707 | if (j < range[i].from) | |
708 | { | |
709 | if (i == 0 || ! NILP (tmp[i - 1])) | |
710 | /* None of TMP[X] corresponds to Jth field. */ | |
711 | return -1; | |
712 | for (; j < range[i].from; j++) | |
713 | field[j] = Qnil; | |
714 | } | |
715 | field[j++] = tmp[i]; | |
716 | } | |
717 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
718 | return -1; | |
719 | for (; j < XLFD_LAST_INDEX; j++) | |
720 | field[j] = Qnil; | |
721 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
722 | field[XLFD_ENCODING_INDEX] | |
723 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
724 | return 0; | |
725 | } | |
726 | ||
ef18374f | 727 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
728 | (font-spec or font-entity). Size property of FONT is set as |
729 | follows: | |
730 | specified XLFD fields FONT property | |
731 | --------------------- ------------- | |
732 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
733 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
734 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
735 | ||
ec6fe57c | 736 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 737 | |
ec6fe57c KH |
738 | FONT is usually a font-spec, but when this function is called from |
739 | X font backend driver, it is a font-entity. In that case, NAME is | |
740 | a fully specified XLFD, and we set FONT_EXTRA_INDEX of FONT to a | |
741 | symbol RESX-RESY-SPACING-AVGWIDTH. | |
742 | */ | |
c2f5bfd6 KH |
743 | |
744 | int | |
ec6fe57c | 745 | font_parse_xlfd (name, font) |
c2f5bfd6 KH |
746 | char *name; |
747 | Lisp_Object font; | |
c2f5bfd6 KH |
748 | { |
749 | int len = strlen (name); | |
750 | int i, j; | |
ec6fe57c KH |
751 | Lisp_Object dpi, spacing; |
752 | int avgwidth; | |
cf23b845 | 753 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 754 | Lisp_Object val; |
4485a28e | 755 | char *p; |
c2f5bfd6 KH |
756 | |
757 | if (len > 255) | |
758 | /* Maximum XLFD name length is 255. */ | |
759 | return -1; | |
ec6fe57c KH |
760 | /* Accept "*-.." as a fully specified XLFD. */ |
761 | if (name[0] == '*' && name[1] == '-') | |
762 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; | |
763 | else | |
764 | i = 0; | |
765 | for (p = name + i; *p; p++) | |
766 | if (*p == '-' && i < XLFD_LAST_INDEX) | |
767 | f[i++] = p + 1; | |
768 | f[i] = p; | |
c2f5bfd6 | 769 | |
ec6fe57c KH |
770 | dpi = spacing = Qnil; |
771 | avgwidth = -1; | |
4485a28e | 772 | |
ec6fe57c | 773 | if (i == XLFD_LAST_INDEX) |
4485a28e | 774 | { |
ec6fe57c KH |
775 | int pixel_size; |
776 | ||
4485a28e | 777 | /* Fully specified XLFD. */ |
ec6fe57c KH |
778 | for (i = 0, j = FONT_FOUNDRY_INDEX; i < XLFD_WEIGHT_INDEX; i++, j++) |
779 | { | |
780 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
781 | if (! NILP (val)) | |
782 | ASET (font, j, val); | |
783 | } | |
784 | for (j = FONT_WEIGHT_INDEX; i < XLFD_ADSTYLE_INDEX; i++, j++) | |
4485a28e | 785 | { |
ec6fe57c KH |
786 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); |
787 | if (! NILP (val)) | |
4485a28e | 788 | { |
ec6fe57c KH |
789 | Lisp_Object numeric = prop_name_to_numeric (j, val); |
790 | ||
791 | if (INTEGERP (numeric)) | |
792 | val = numeric; | |
793 | ASET (font, j, val); | |
794 | } | |
795 | } | |
796 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
797 | if (! NILP (val)) | |
798 | ASET (font, FONT_ADSTYLE_INDEX, val); | |
799 | i = XLFD_REGISTRY_INDEX; | |
800 | val = intern_font_field (f[i], f[i + 2] - f[i]); | |
801 | if (! NILP (val)) | |
802 | ASET (font, FONT_REGISTRY_INDEX, val); | |
803 | ||
804 | p = f[XLFD_PIXEL_INDEX]; | |
805 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
806 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); | |
807 | else | |
808 | { | |
809 | i = XLFD_PIXEL_INDEX; | |
810 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
811 | if (! NILP (val)) | |
812 | ASET (font, FONT_SIZE_INDEX, val); | |
813 | else | |
814 | { | |
815 | double point_size = -1; | |
816 | ||
817 | xassert (FONT_SPEC_P (font)); | |
818 | p = f[XLFD_POINT_INDEX]; | |
819 | if (*p == '[') | |
820 | point_size = parse_matrix (p); | |
821 | else if (isdigit (*p)) | |
822 | point_size = atoi (p), point_size /= 10; | |
823 | if (point_size >= 0) | |
824 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
825 | else |
826 | { | |
ec6fe57c KH |
827 | i = XLFD_PIXEL_INDEX; |
828 | val = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
829 | if (! NILP (val)) | |
830 | ASET (font, FONT_SIZE_INDEX, val); | |
4485a28e | 831 | } |
4485a28e KH |
832 | } |
833 | } | |
ec6fe57c KH |
834 | |
835 | /* Parse RESX, RESY, SPACING, and AVGWIDTH. */ | |
836 | if (FONT_ENTITY_P (font)) | |
837 | { | |
838 | i = XLFD_RESX_INDEX; | |
839 | ASET (font, FONT_EXTRA_INDEX, | |
840 | intern_font_field (f[i], f[XLFD_REGISTRY_INDEX] - 1 - f[i])); | |
841 | return 0; | |
842 | } | |
843 | ||
844 | /* Here we just setup DPI, SPACING, and AVGWIDTH. They are set | |
845 | in FONT_EXTRA_INDEX later. */ | |
846 | i = XLFD_RESX_INDEX; | |
847 | dpi = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
848 | i = XLFD_SPACING_INDEX; | |
849 | spacing = intern_font_field (f[i], f[i + 1] - 1 - f[i]); | |
850 | p = f[XLFD_AVGWIDTH_INDEX]; | |
851 | if (*p == '~') | |
852 | p++; | |
853 | if (isdigit (*p)) | |
854 | avgwidth = atoi (p); | |
4485a28e KH |
855 | } |
856 | else | |
c2f5bfd6 | 857 | { |
4485a28e | 858 | int wild_card_found = 0; |
ec6fe57c | 859 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 860 | |
ec6fe57c | 861 | for (j = 0; j < i; j++) |
4485a28e | 862 | { |
ec6fe57c | 863 | if (*f[j] == '*') |
4485a28e | 864 | { |
ec6fe57c KH |
865 | if (f[j][1] && f[j][1] != '-') |
866 | return -1; | |
867 | prop[j] = Qnil; | |
868 | wild_card_found = 1; | |
869 | } | |
870 | else if (isdigit (*f[j])) | |
871 | { | |
872 | for (p = f[j] + 1; isdigit (*p); p++); | |
873 | if (*p && *p != '-') | |
874 | prop[j] = intern_downcase (f[j], p - f[j]); | |
4485a28e | 875 | else |
ec6fe57c | 876 | prop[j] = make_number (atoi (f[j])); |
4485a28e | 877 | } |
ec6fe57c KH |
878 | else if (j + 1 < i) |
879 | prop[j] = intern_font_field (f[j], f[j + 1] - 1 - f[j]); | |
880 | else | |
881 | prop[j] = intern_font_field (f[j], f[i] - f[j]); | |
4485a28e KH |
882 | } |
883 | if (! wild_card_found) | |
c2f5bfd6 | 884 | return -1; |
ec6fe57c | 885 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 886 | return -1; |
ec6fe57c KH |
887 | |
888 | for (i = 0, j = FONT_FOUNDRY_INDEX; i < XLFD_WEIGHT_INDEX; i++, j++) | |
889 | if (! NILP (prop[i])) | |
890 | ASET (font, j, prop[i]); | |
891 | for (j = FONT_WEIGHT_INDEX; i < XLFD_ADSTYLE_INDEX; i++, j++) | |
892 | if (! NILP (prop[i])) | |
893 | ASET (font, j, prop[i]); | |
894 | if (! NILP (prop[XLFD_ADSTYLE_INDEX])) | |
895 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
896 | val = prop[XLFD_REGISTRY_INDEX]; | |
897 | if (NILP (val)) | |
c2f5bfd6 | 898 | { |
ec6fe57c KH |
899 | val = prop[XLFD_ENCODING_INDEX]; |
900 | if (! NILP (val)) | |
901 | val = Fintern (concat2 (build_string ("*-"), SYMBOL_NAME (val)), | |
902 | Qnil); | |
4485a28e | 903 | } |
ec6fe57c KH |
904 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
905 | val = Fintern (concat2 (SYMBOL_NAME (val), build_string ("-*")), | |
906 | Qnil); | |
4485a28e | 907 | else |
ec6fe57c KH |
908 | val = Fintern (concat3 (SYMBOL_NAME (val), build_string ("-"), |
909 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])), | |
910 | Qnil); | |
911 | if (! NILP (val)) | |
912 | ASET (font, FONT_REGISTRY_INDEX, val); | |
913 | ||
914 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
915 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
916 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 917 | { |
ec6fe57c | 918 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 919 | |
ec6fe57c KH |
920 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
921 | } | |
c2f5bfd6 | 922 | |
ec6fe57c KH |
923 | dpi = prop[XLFD_RESX_INDEX]; |
924 | spacing = prop[XLFD_SPACING_INDEX]; | |
925 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) | |
926 | avgwidth = XINT (prop[XLFD_AVGWIDTH_INDEX]); | |
c2f5bfd6 KH |
927 | } |
928 | ||
ec6fe57c KH |
929 | if (! NILP (dpi)) |
930 | font_put_extra (font, QCdpi, dpi); | |
931 | if (! NILP (spacing)) | |
932 | font_put_extra (font, QCspacing, spacing); | |
933 | if (avgwidth >= 0) | |
934 | font_put_extra (font, QCscalable, avgwidth == 0 ? Qt : Qnil); | |
c2f5bfd6 | 935 | |
ec6fe57c | 936 | return 0; |
c2f5bfd6 KH |
937 | } |
938 | ||
939 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
940 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
941 | 0, use PIXEL_SIZE instead. */ | |
942 | ||
943 | int | |
944 | font_unparse_xlfd (font, pixel_size, name, nbytes) | |
945 | Lisp_Object font; | |
1bb1d99b | 946 | int pixel_size; |
c2f5bfd6 KH |
947 | char *name; |
948 | int nbytes; | |
949 | { | |
ec6fe57c | 950 | char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 KH |
951 | Lisp_Object val; |
952 | int i, j, len = 0; | |
953 | ||
954 | xassert (FONTP (font)); | |
955 | ||
956 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
957 | i++, j++) | |
958 | { | |
959 | if (i == FONT_ADSTYLE_INDEX) | |
960 | j = XLFD_ADSTYLE_INDEX; | |
961 | else if (i == FONT_REGISTRY_INDEX) | |
962 | j = XLFD_REGISTRY_INDEX; | |
963 | val = AREF (font, i); | |
964 | if (NILP (val)) | |
1bb1d99b KH |
965 | { |
966 | if (j == XLFD_REGISTRY_INDEX) | |
967 | f[j] = "*-*", len += 4; | |
968 | else | |
969 | f[j] = "*", len += 2; | |
970 | } | |
c2f5bfd6 KH |
971 | else |
972 | { | |
973 | if (SYMBOLP (val)) | |
974 | val = SYMBOL_NAME (val); | |
1bb1d99b KH |
975 | if (j == XLFD_REGISTRY_INDEX |
976 | && ! strchr ((char *) SDATA (val), '-')) | |
977 | { | |
978 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
979 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
980 | { | |
981 | f[j] = alloca (SBYTES (val) + 3); | |
982 | sprintf (f[j], "%s-*", SDATA (val)); | |
983 | len += SBYTES (val) + 3; | |
984 | } | |
985 | else | |
986 | { | |
987 | f[j] = alloca (SBYTES (val) + 4); | |
988 | sprintf (f[j], "%s*-*", SDATA (val)); | |
989 | len += SBYTES (val) + 4; | |
990 | } | |
991 | } | |
992 | else | |
993 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
c2f5bfd6 KH |
994 | } |
995 | } | |
996 | ||
997 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
998 | i++, j++) | |
999 | { | |
1000 | val = AREF (font, i); | |
1001 | if (NILP (val)) | |
1002 | f[j] = "*", len += 2; | |
1003 | else | |
1004 | { | |
1005 | if (INTEGERP (val)) | |
1006 | val = prop_numeric_to_name (i, XINT (val)); | |
1007 | if (SYMBOLP (val)) | |
1008 | val = SYMBOL_NAME (val); | |
1009 | xassert (STRINGP (val)); | |
1010 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | val = AREF (font, FONT_SIZE_INDEX); | |
1015 | xassert (NUMBERP (val) || NILP (val)); | |
1016 | if (INTEGERP (val)) | |
1017 | { | |
ec6fe57c | 1018 | f[XLFD_PIXEL_INDEX] = alloca (22); |
c2f5bfd6 KH |
1019 | i = XINT (val); |
1020 | if (i > 0) | |
ec6fe57c | 1021 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", i) + 1; |
c2f5bfd6 | 1022 | else /* i == 0 */ |
ec6fe57c | 1023 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", pixel_size) + 1; |
c2f5bfd6 KH |
1024 | } |
1025 | else if (FLOATP (val)) | |
1026 | { | |
ec6fe57c | 1027 | f[XLFD_PIXEL_INDEX] = alloca (12); |
c2f5bfd6 | 1028 | i = XFLOAT_DATA (val) * 10; |
ec6fe57c | 1029 | len += sprintf (f[XLFD_PIXEL_INDEX], "*-%d", i) + 1; |
c2f5bfd6 KH |
1030 | } |
1031 | else | |
ec6fe57c KH |
1032 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1033 | ||
1034 | val = AREF (font, FONT_EXTRA_INDEX); | |
c2f5bfd6 KH |
1035 | |
1036 | if (FONT_ENTITY_P (font) | |
1037 | && EQ (AREF (font, FONT_TYPE_INDEX), Qx)) | |
1038 | { | |
ec6fe57c | 1039 | /* Setup names for RESX-RESY-SPACING-AVWIDTH. */ |
c2f5bfd6 KH |
1040 | if (SYMBOLP (val) && ! NILP (val)) |
1041 | { | |
1042 | val = SYMBOL_NAME (val); | |
ec6fe57c | 1043 | f[XLFD_RESX_INDEX] = (char *) SDATA (val), len += SBYTES (val) + 1; |
c2f5bfd6 KH |
1044 | } |
1045 | else | |
ec6fe57c | 1046 | f[XLFD_RESX_INDEX] = "*-*-*-*", len += 6; |
c2f5bfd6 KH |
1047 | } |
1048 | else | |
ec6fe57c KH |
1049 | { |
1050 | Lisp_Object dpi = assq_no_quit (QCdpi, val); | |
1051 | Lisp_Object spacing = assq_no_quit (QCspacing, val); | |
1052 | Lisp_Object scalable = assq_no_quit (QCscalable, val); | |
1053 | ||
1054 | if (CONSP (dpi) || CONSP (spacing) || CONSP (scalable)) | |
1055 | { | |
1056 | char *str = alloca (24); | |
1057 | int this_len; | |
c2f5bfd6 | 1058 | |
ec6fe57c KH |
1059 | if (CONSP (dpi) && INTEGERP (XCDR (dpi))) |
1060 | this_len = sprintf (str, "%d-%d", | |
1061 | XINT (XCDR (dpi)), XINT (XCDR (dpi))); | |
1062 | else | |
1063 | this_len = sprintf (str, "*-*"); | |
1064 | if (CONSP (spacing) && ! NILP (XCDR (spacing))) | |
1065 | { | |
1066 | val = XCDR (spacing); | |
1067 | if (INTEGERP (val)) | |
1068 | { | |
1069 | if (XINT (val) < FONT_SPACING_MONO) | |
1070 | val = Qp; | |
1071 | else if (XINT (val) < FONT_SPACING_CHARCELL) | |
1072 | val = Qm; | |
1073 | else | |
1074 | val = Qc; | |
1075 | } | |
1076 | xassert (SYMBOLP (val)); | |
1077 | this_len += sprintf (str + this_len, "-%c", | |
1078 | SDATA (SYMBOL_NAME (val))[0]); | |
1079 | } | |
1080 | else | |
1081 | this_len += sprintf (str + this_len, "-*"); | |
1082 | if (CONSP (scalable) && ! NILP (XCDR (spacing))) | |
1083 | this_len += sprintf (str + this_len, "-0"); | |
1084 | else | |
1085 | this_len += sprintf (str + this_len, "-*"); | |
1086 | f[XLFD_RESX_INDEX] = str; | |
1087 | len += this_len; | |
1088 | } | |
1089 | else | |
1090 | f[XLFD_RESX_INDEX] = "*-*-*-*", len += 8; | |
1091 | } | |
1092 | ||
1093 | len++; /* for terminating '\0'. */ | |
c2f5bfd6 KH |
1094 | if (len >= nbytes) |
1095 | return -1; | |
ec6fe57c | 1096 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1097 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1098 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
1099 | f[XLFD_SWIDTH_INDEX], | |
ec6fe57c KH |
1100 | f[XLFD_ADSTYLE_INDEX], f[XLFD_PIXEL_INDEX], |
1101 | f[XLFD_RESX_INDEX], f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1102 | } |
1103 | ||
ef18374f | 1104 | /* Parse NAME (null terminated) as Fonconfig's name format and store |
9331887d KH |
1105 | information in FONT (font-spec or font-entity). If NAME is |
1106 | successfully parsed, return 0. Otherwise return -1. */ | |
ef18374f KH |
1107 | |
1108 | int | |
ec6fe57c | 1109 | font_parse_fcname (name, font) |
ef18374f KH |
1110 | char *name; |
1111 | Lisp_Object font; | |
ef18374f KH |
1112 | { |
1113 | char *p0, *p1; | |
9331887d KH |
1114 | int len = strlen (name); |
1115 | char *copy; | |
ef18374f | 1116 | |
ec6fe57c KH |
1117 | if (len == 0) |
1118 | return -1; | |
ef18374f KH |
1119 | /* It is assured that (name[0] && name[0] != '-'). */ |
1120 | if (name[0] == ':') | |
1121 | p0 = name; | |
1122 | else | |
1123 | { | |
ec6fe57c KH |
1124 | Lisp_Object family; |
1125 | double point_size; | |
1126 | ||
1127 | for (p0 = name + 1; *p0 && (*p0 != '-' && *p0 != ':'); p0++) | |
1128 | if (*p0 == '\\' && p0[1]) | |
1129 | p0++; | |
1130 | family = intern_font_field (name, p0 - name); | |
1131 | if (*p0 == '-') | |
ef18374f | 1132 | { |
ec6fe57c KH |
1133 | if (! isdigit (p0[1])) |
1134 | return -1; | |
1135 | point_size = strtod (p0 + 1, &p1); | |
1136 | if (*p1 && *p1 != ':') | |
1137 | return -1; | |
1138 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1139 | p0 = p1; | |
ef18374f | 1140 | } |
ec6fe57c | 1141 | ASET (font, FONT_FAMILY_INDEX, family); |
ef18374f | 1142 | } |
9331887d KH |
1143 | |
1144 | len -= p0 - name; | |
1145 | copy = alloca (len + 1); | |
1146 | if (! copy) | |
1147 | return -1; | |
1148 | name = copy; | |
1149 | ||
1150 | /* Now parse ":KEY=VAL" patterns. Store known keys and values in | |
1151 | extra, copy unknown ones to COPY. */ | |
ef18374f KH |
1152 | while (*p0) |
1153 | { | |
1154 | Lisp_Object key, val; | |
ec6fe57c | 1155 | int prop; |
ef18374f | 1156 | |
ec6fe57c | 1157 | for (p1 = p0 + 1; *p1 && *p1 != '=' && *p1 != ':'; p1++); |
9331887d | 1158 | if (*p1 != '=') |
ef18374f | 1159 | { |
9331887d KH |
1160 | /* Must be an enumerated value. */ |
1161 | val = intern_font_field (p0 + 1, p1 - p0 - 1); | |
9331887d KH |
1162 | if (memcmp (p0 + 1, "light", 5) == 0 |
1163 | || memcmp (p0 + 1, "medium", 6) == 0 | |
1164 | || memcmp (p0 + 1, "demibold", 8) == 0 | |
1165 | || memcmp (p0 + 1, "bold", 4) == 0 | |
1166 | || memcmp (p0 + 1, "black", 5) == 0) | |
1167 | { | |
ec6fe57c | 1168 | ASET (font, FONT_WEIGHT_INDEX, val); |
9331887d KH |
1169 | } |
1170 | else if (memcmp (p0 + 1, "roman", 5) == 0 | |
1171 | || memcmp (p0 + 1, "italic", 6) == 0 | |
1172 | || memcmp (p0 + 1, "oblique", 7) == 0) | |
1173 | { | |
ec6fe57c | 1174 | ASET (font, FONT_SLANT_INDEX, val); |
9331887d KH |
1175 | } |
1176 | else if (memcmp (p0 + 1, "charcell", 8) == 0 | |
1177 | || memcmp (p0 + 1, "mono", 4) == 0 | |
1178 | || memcmp (p0 + 1, "proportional", 12) == 0) | |
1179 | { | |
1180 | font_put_extra (font, QCspacing, | |
ec6fe57c | 1181 | (p0[1] == 'c' ? Qc : p0[1] == 'm' ? Qm : Qp)); |
9331887d KH |
1182 | } |
1183 | else | |
1184 | { | |
1185 | /* unknown key */ | |
1186 | bcopy (p0, copy, p1 - p0); | |
1187 | copy += p1 - p0; | |
1188 | } | |
ef18374f KH |
1189 | } |
1190 | else | |
1191 | { | |
9331887d KH |
1192 | if (memcmp (p0 + 1, "pixelsize=", 10) == 0) |
1193 | prop = FONT_SIZE_INDEX; | |
1194 | else | |
1195 | { | |
1196 | key = intern_font_field (p0, p1 - p0); | |
ec6fe57c | 1197 | prop = get_font_prop_index (key, 0); |
9331887d KH |
1198 | } |
1199 | p0 = p1 + 1; | |
1200 | for (p1 = p0; *p1 && *p1 != ':'; p1++); | |
ec6fe57c KH |
1201 | val = intern_font_field (p0, p1 - p0); |
1202 | if (! NILP (val)) | |
9331887d | 1203 | { |
ec6fe57c | 1204 | if (prop >= 0 && prop < FONT_EXTRA_INDEX) |
ef18374f | 1205 | { |
ec6fe57c KH |
1206 | ASET (font, prop, val); |
1207 | } | |
ec6fe57c | 1208 | else |
e950d6f1 | 1209 | font_put_extra (font, key, val); |
ef18374f KH |
1210 | } |
1211 | } | |
1212 | p0 = p1; | |
1213 | } | |
9331887d | 1214 | |
9331887d | 1215 | return 0; |
ef18374f KH |
1216 | } |
1217 | ||
1218 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1219 | NAME (NBYTES length), and return the name length. If | |
1220 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1221 | ||
1222 | int | |
1223 | font_unparse_fcname (font, pixel_size, name, nbytes) | |
1224 | Lisp_Object font; | |
1225 | int pixel_size; | |
1226 | char *name; | |
1227 | int nbytes; | |
1228 | { | |
ec6fe57c KH |
1229 | Lisp_Object val; |
1230 | int point_size; | |
1231 | int dpi, spacing, scalable; | |
1232 | int i, len = 1; | |
ef18374f | 1233 | char *p; |
a9262bb8 | 1234 | Lisp_Object styles[3]; |
417a1b10 | 1235 | char *style_names[3] = { "weight", "slant", "width" }; |
ef18374f | 1236 | |
ec6fe57c KH |
1237 | val = AREF (font, FONT_FAMILY_INDEX); |
1238 | if (SYMBOLP (val) && ! NILP (val)) | |
1239 | len += SBYTES (SYMBOL_NAME (val)); | |
1240 | ||
1241 | val = AREF (font, FONT_SIZE_INDEX); | |
1242 | if (INTEGERP (val)) | |
ef18374f | 1243 | { |
ec6fe57c KH |
1244 | if (XINT (val) != 0) |
1245 | pixel_size = XINT (val); | |
1246 | point_size = -1; | |
1247 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1248 | } |
ec6fe57c | 1249 | else if (FLOATP (val)) |
ef18374f | 1250 | { |
ec6fe57c KH |
1251 | pixel_size = -1; |
1252 | point_size = (int) XFLOAT_DATA (val); | |
1253 | len += 11; /* for "-NUM" */ | |
ef18374f | 1254 | } |
ec6fe57c KH |
1255 | |
1256 | val = AREF (font, FONT_FOUNDRY_INDEX); | |
8e1ef8fd | 1257 | if (SYMBOLP (val) && ! NILP (val)) |
ef18374f | 1258 | /* ":foundry=NAME" */ |
ec6fe57c KH |
1259 | len += 9 + SBYTES (SYMBOL_NAME (val)); |
1260 | ||
a9262bb8 KH |
1261 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) |
1262 | { | |
1263 | val = AREF (font, i); | |
1264 | if (INTEGERP (val)) | |
1265 | { | |
1266 | val = prop_numeric_to_name (i, XINT (val)); | |
1267 | len += (strlen (style_names[i - FONT_WEIGHT_INDEX]) | |
1268 | + 2 + SBYTES (SYMBOL_NAME (val))); /* :xxx=NAME */ | |
1269 | } | |
1270 | styles[i - FONT_WEIGHT_INDEX] = val; | |
1271 | } | |
ec6fe57c KH |
1272 | |
1273 | val = AREF (font, FONT_EXTRA_INDEX); | |
1274 | if (FONT_ENTITY_P (font) | |
1275 | && EQ (AREF (font, FONT_TYPE_INDEX), Qx)) | |
1276 | { | |
1277 | char *p; | |
1278 | ||
1279 | /* VAL is a symbol of name `RESX-RESY-SPACING-AVWIDTH'. */ | |
1280 | p = (char *) SDATA (SYMBOL_NAME (val)); | |
1281 | dpi = atoi (p); | |
1282 | for (p++; *p != '-'; p++); /* skip RESX */ | |
1283 | for (p++; *p != '-'; p++); /* skip RESY */ | |
1284 | spacing = (*p == 'c' ? FONT_SPACING_CHARCELL | |
1285 | : *p == 'm' ? FONT_SPACING_MONO | |
1286 | : FONT_SPACING_PROPORTIONAL); | |
1287 | for (p++; *p != '-'; p++); /* skip SPACING */ | |
1288 | scalable = (atoi (p) == 0); | |
1289 | /* The longest pattern is ":dpi=NUM:scalable=False:spacing=100" */ | |
1290 | len += 42; | |
1291 | } | |
1292 | else | |
1293 | { | |
1294 | Lisp_Object elt; | |
1295 | ||
1296 | dpi = spacing = scalable = -1; | |
1297 | elt = assq_no_quit (QCdpi, val); | |
1298 | if (CONSP (elt)) | |
1299 | dpi = XINT (XCDR (elt)), len += 15; /* for ":dpi=NUM" */ | |
1300 | elt = assq_no_quit (QCspacing, val); | |
1301 | if (CONSP (elt)) | |
1302 | spacing = XINT (XCDR (elt)), len += 12; /* for ":spacing=100" */ | |
1303 | elt = assq_no_quit (QCscalable, val); | |
1304 | if (CONSP (elt)) | |
1305 | scalable = ! NILP (XCDR (elt)), len += 15; /* for ":scalable=False" */ | |
1306 | } | |
1307 | ||
ef18374f KH |
1308 | if (len > nbytes) |
1309 | return -1; | |
1310 | p = name; | |
1311 | if (! NILP (AREF (font, FONT_FAMILY_INDEX))) | |
a9262bb8 KH |
1312 | p += sprintf(p, "%s", |
1313 | SDATA (SYMBOL_NAME (AREF (font, FONT_FAMILY_INDEX)))); | |
ec6fe57c KH |
1314 | if (point_size > 0) |
1315 | { | |
1316 | if (p == name) | |
1317 | p += sprintf (p, "%d", point_size); | |
1318 | else | |
1319 | p += sprintf (p, "-%d", point_size); | |
1320 | } | |
ef18374f KH |
1321 | else if (pixel_size > 0) |
1322 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
a9262bb8 KH |
1323 | if (SYMBOLP (AREF (font, FONT_FOUNDRY_INDEX)) |
1324 | && ! NILP (AREF (font, FONT_FOUNDRY_INDEX))) | |
1325 | p += sprintf (p, ":foundry=%s", | |
1326 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1327 | for (i = 0; i < 3; i++) | |
f73891b0 | 1328 | if (SYMBOLP (styles[i]) && ! NILP (styles [i])) |
a9262bb8 KH |
1329 | p += sprintf (p, ":%s=%s", style_names[i], |
1330 | SDATA (SYMBOL_NAME (styles [i]))); | |
ec6fe57c KH |
1331 | if (dpi >= 0) |
1332 | p += sprintf (p, ":dpi=%d", dpi); | |
1333 | if (spacing >= 0) | |
1334 | p += sprintf (p, ":spacing=%d", spacing); | |
1335 | if (scalable > 0) | |
1336 | p += sprintf (p, ":scalable=True"); | |
1337 | else if (scalable == 0) | |
1338 | p += sprintf (p, ":scalable=False"); | |
ef18374f KH |
1339 | return (p - name); |
1340 | } | |
1341 | ||
1342 | /* Parse NAME (null terminated) and store information in FONT | |
1343 | (font-spec or font-entity). If NAME is successfully parsed, return | |
ec6fe57c | 1344 | 0. Otherwise return -1. |
ef18374f KH |
1345 | |
1346 | If NAME is XLFD and FONT is a font-entity, store | |
ec6fe57c KH |
1347 | RESX-RESY-SPACING-AVWIDTH information as a symbol in |
1348 | FONT_EXTRA_INDEX. */ | |
ef18374f KH |
1349 | |
1350 | static int | |
ec6fe57c | 1351 | font_parse_name (name, font) |
ef18374f KH |
1352 | char *name; |
1353 | Lisp_Object font; | |
ef18374f KH |
1354 | { |
1355 | if (name[0] == '-' || index (name, '*')) | |
e950d6f1 | 1356 | return font_parse_xlfd (name, font); |
ec6fe57c | 1357 | return font_parse_fcname (name, font); |
ef18374f KH |
1358 | } |
1359 | ||
c2f5bfd6 KH |
1360 | void |
1361 | font_merge_old_spec (name, family, registry, spec) | |
1362 | Lisp_Object name, family, registry, spec; | |
1363 | { | |
1364 | if (STRINGP (name)) | |
1365 | { | |
ec6fe57c | 1366 | if (font_parse_xlfd ((char *) SDATA (name), spec) < 0) |
c2f5bfd6 KH |
1367 | { |
1368 | Lisp_Object extra = Fcons (Fcons (QCname, name), Qnil); | |
1369 | ||
1370 | ASET (spec, FONT_EXTRA_INDEX, extra); | |
1371 | } | |
1372 | } | |
1373 | else | |
1374 | { | |
1375 | if (! NILP (family)) | |
1376 | { | |
1377 | int len; | |
1378 | char *p0, *p1; | |
1379 | ||
1380 | xassert (STRINGP (family)); | |
1381 | len = SBYTES (family); | |
1382 | p0 = (char *) SDATA (family); | |
1383 | p1 = index (p0, '-'); | |
1384 | if (p1) | |
1385 | { | |
0c363472 KH |
1386 | if ((*p0 != '*' || p1 - p0 > 1) |
1387 | && NILP (AREF (spec, FONT_FOUNDRY_INDEX))) | |
c2f5bfd6 KH |
1388 | ASET (spec, FONT_FOUNDRY_INDEX, |
1389 | intern_downcase (p0, p1 - p0)); | |
1390 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
1391 | ASET (spec, FONT_FAMILY_INDEX, | |
1392 | intern_downcase (p1 + 1, len - (p1 + 1 - p0))); | |
1393 | } | |
1394 | else if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
1395 | ASET (spec, FONT_FAMILY_INDEX, intern_downcase (p0, len)); | |
1396 | } | |
1397 | if (! NILP (registry) | |
1398 | && NILP (AREF (spec, FONT_REGISTRY_INDEX))) | |
1399 | ASET (spec, FONT_REGISTRY_INDEX, | |
1400 | intern_downcase ((char *) SDATA (registry), SBYTES (registry))); | |
1401 | } | |
1402 | } | |
1403 | ||
10d16101 KH |
1404 | static Lisp_Object |
1405 | font_lispy_object (font) | |
1406 | struct font *font; | |
1407 | { | |
1408 | Lisp_Object objlist = AREF (font->entity, FONT_OBJLIST_INDEX); | |
1409 | ||
1410 | for (; ! NILP (objlist); objlist = XCDR (objlist)) | |
1411 | { | |
1412 | struct Lisp_Save_Value *p = XSAVE_VALUE (XCAR (objlist)); | |
1413 | ||
1414 | if (font == (struct font *) p->pointer) | |
1415 | break; | |
1416 | } | |
1417 | xassert (! NILP (objlist)); | |
1418 | return XCAR (objlist); | |
1419 | } | |
1420 | ||
e950d6f1 KH |
1421 | #define LGSTRING_HEADER_SIZE 6 |
1422 | #define LGSTRING_GLYPH_SIZE 8 | |
1423 | ||
1424 | static int | |
1425 | check_gstring (gstring) | |
1426 | Lisp_Object gstring; | |
1427 | { | |
1428 | Lisp_Object val; | |
1429 | int i, j; | |
1430 | ||
1431 | CHECK_VECTOR (gstring); | |
1432 | val = AREF (gstring, 0); | |
1433 | CHECK_VECTOR (val); | |
1434 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1435 | goto err; | |
1436 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
1437 | if (! NILP (LGSTRING_LBEARING (gstring))) | |
1438 | CHECK_NUMBER (LGSTRING_LBEARING (gstring)); | |
1439 | if (! NILP (LGSTRING_RBEARING (gstring))) | |
1440 | CHECK_NUMBER (LGSTRING_RBEARING (gstring)); | |
1441 | if (! NILP (LGSTRING_WIDTH (gstring))) | |
1442 | CHECK_NATNUM (LGSTRING_WIDTH (gstring)); | |
1443 | if (! NILP (LGSTRING_ASCENT (gstring))) | |
1444 | CHECK_NUMBER (LGSTRING_ASCENT (gstring)); | |
1445 | if (! NILP (LGSTRING_DESCENT (gstring))) | |
1446 | CHECK_NUMBER (LGSTRING_DESCENT(gstring)); | |
1447 | ||
1448 | for (i = 0; i < LGSTRING_LENGTH (gstring); i++) | |
1449 | { | |
1450 | val = LGSTRING_GLYPH (gstring, i); | |
1451 | CHECK_VECTOR (val); | |
1452 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1453 | goto err; | |
1454 | if (NILP (LGLYPH_CHAR (val))) | |
1455 | break; | |
1456 | CHECK_NATNUM (LGLYPH_FROM (val)); | |
1457 | CHECK_NATNUM (LGLYPH_TO (val)); | |
1458 | CHECK_CHARACTER (LGLYPH_CHAR (val)); | |
1459 | if (! NILP (LGLYPH_CODE (val))) | |
1460 | CHECK_NATNUM (LGLYPH_CODE (val)); | |
1461 | if (! NILP (LGLYPH_WIDTH (val))) | |
1462 | CHECK_NATNUM (LGLYPH_WIDTH (val)); | |
1463 | if (! NILP (LGLYPH_ADJUSTMENT (val))) | |
1464 | { | |
1465 | val = LGLYPH_ADJUSTMENT (val); | |
1466 | CHECK_VECTOR (val); | |
1467 | if (ASIZE (val) < 3) | |
1468 | goto err; | |
1469 | for (j = 0; j < 3; j++) | |
1470 | CHECK_NUMBER (AREF (val, j)); | |
1471 | } | |
1472 | } | |
1473 | return i; | |
1474 | err: | |
1475 | error ("Invalid glyph-string format"); | |
1476 | return -1; | |
1477 | } | |
1478 | ||
c2f5bfd6 KH |
1479 | \f |
1480 | /* OTF handler */ | |
1481 | ||
cf385d93 KH |
1482 | static void |
1483 | check_otf_features (otf_features) | |
1484 | Lisp_Object otf_features; | |
1485 | { | |
1486 | Lisp_Object val, elt; | |
1487 | ||
1488 | CHECK_CONS (otf_features); | |
1489 | CHECK_SYMBOL (XCAR (otf_features)); | |
1490 | otf_features = XCDR (otf_features); | |
1491 | CHECK_CONS (otf_features); | |
1492 | CHECK_SYMBOL (XCAR (otf_features)); | |
1493 | otf_features = XCDR (otf_features); | |
1494 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1495 | { | |
1496 | CHECK_SYMBOL (Fcar (val)); | |
1497 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1498 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1499 | } | |
1500 | otf_features = XCDR (otf_features); | |
1501 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1502 | { | |
1503 | CHECK_SYMBOL (Fcar (val)); | |
1504 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1505 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1506 | } | |
1507 | } | |
1508 | ||
c2f5bfd6 KH |
1509 | #ifdef HAVE_LIBOTF |
1510 | #include <otf.h> | |
1511 | ||
733fd013 | 1512 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1513 | |
1514 | static Lisp_Object | |
1515 | otf_tag_symbol (tag) | |
1516 | OTF_Tag tag; | |
1517 | { | |
1518 | char name[5]; | |
1519 | ||
1520 | OTF_tag_name (tag, name); | |
1521 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1522 | } | |
1523 | ||
1524 | static OTF * | |
1525 | otf_open (entity, file) | |
1526 | Lisp_Object entity; | |
1527 | char *file; | |
1528 | { | |
733fd013 KH |
1529 | Lisp_Object val = Fassoc (entity, otf_list); |
1530 | OTF *otf; | |
1531 | ||
1532 | if (! NILP (val)) | |
1533 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1534 | else | |
c2f5bfd6 | 1535 | { |
733fd013 KH |
1536 | otf = file ? OTF_open (file) : NULL; |
1537 | val = make_save_value (otf, 0); | |
1538 | otf_list = Fcons (Fcons (entity, val), otf_list); | |
c2f5bfd6 | 1539 | } |
733fd013 | 1540 | return otf; |
c2f5bfd6 KH |
1541 | } |
1542 | ||
1543 | ||
1544 | /* Return a list describing which scripts/languages FONT supports by | |
1545 | which GSUB/GPOS features of OpenType tables. See the comment of | |
1546 | (sturct font_driver).otf_capability. */ | |
1547 | ||
1548 | Lisp_Object | |
1549 | font_otf_capability (font) | |
1550 | struct font *font; | |
1551 | { | |
1552 | OTF *otf; | |
1553 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1554 | int i; | |
1555 | ||
1556 | otf = otf_open (font->entity, font->file_name); | |
1557 | if (! otf) | |
1558 | return Qnil; | |
1559 | for (i = 0; i < 2; i++) | |
1560 | { | |
1561 | OTF_GSUB_GPOS *gsub_gpos; | |
1562 | Lisp_Object script_list = Qnil; | |
1563 | int j; | |
1564 | ||
1565 | if (OTF_get_features (otf, i == 0) < 0) | |
1566 | continue; | |
1567 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1568 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1569 | { | |
1570 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1571 | Lisp_Object langsys_list = Qnil; | |
1572 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1573 | int k; | |
1574 | ||
1575 | for (k = script->LangSysCount; k >= 0; k--) | |
1576 | { | |
1577 | OTF_LangSys *langsys; | |
1578 | Lisp_Object feature_list = Qnil; | |
1579 | Lisp_Object langsys_tag; | |
1580 | int l; | |
1581 | ||
e80e09b4 | 1582 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1583 | { |
1584 | langsys = &script->DefaultLangSys; | |
1585 | langsys_tag = Qnil; | |
1586 | } | |
1587 | else | |
1588 | { | |
1589 | langsys = script->LangSys + k; | |
1590 | langsys_tag | |
1591 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1592 | } | |
e80e09b4 | 1593 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1594 | { |
1595 | OTF_Feature *feature | |
1596 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1597 | Lisp_Object feature_tag | |
1598 | = otf_tag_symbol (feature->FeatureTag); | |
1599 | ||
1600 | feature_list = Fcons (feature_tag, feature_list); | |
1601 | } | |
1602 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1603 | langsys_list); | |
1604 | } | |
1605 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1606 | script_list); | |
1607 | } | |
1608 | ||
1609 | if (i == 0) | |
1610 | XSETCAR (capability, script_list); | |
1611 | else | |
1612 | XSETCDR (capability, script_list); | |
1613 | } | |
1614 | ||
1615 | return capability; | |
1616 | } | |
1617 | ||
733fd013 KH |
1618 | /* Parse OTF features in SPEC and write a proper features spec string |
1619 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1620 | assured that the sufficient memory has already allocated for | |
1621 | FEATURES. */ | |
1622 | ||
e80e09b4 | 1623 | static void |
733fd013 | 1624 | generate_otf_features (spec, features) |
c2f5bfd6 | 1625 | Lisp_Object spec; |
733fd013 | 1626 | char *features; |
c2f5bfd6 KH |
1627 | { |
1628 | Lisp_Object val; | |
e80e09b4 | 1629 | char *p, *pend; |
c2f5bfd6 KH |
1630 | int asterisk; |
1631 | ||
733fd013 | 1632 | p = features; |
e80e09b4 | 1633 | *p = '\0'; |
c2f5bfd6 KH |
1634 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1635 | { | |
1636 | val = XCAR (spec); | |
e80e09b4 KH |
1637 | CHECK_SYMBOL (val); |
1638 | if (p > features) | |
733fd013 | 1639 | *p++ = ','; |
c2f5bfd6 KH |
1640 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1641 | { | |
1642 | asterisk = 1; | |
e80e09b4 | 1643 | *p++ = '*'; |
c2f5bfd6 KH |
1644 | } |
1645 | else if (! asterisk) | |
e80e09b4 KH |
1646 | { |
1647 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1648 | p += sprintf (p, "%s", SDATA (val)); |
1649 | } | |
c2f5bfd6 | 1650 | else |
e80e09b4 KH |
1651 | { |
1652 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1653 | p += sprintf (p, "~%s", SDATA (val)); |
1654 | } | |
c2f5bfd6 | 1655 | } |
e80e09b4 KH |
1656 | if (CONSP (spec)) |
1657 | error ("OTF spec too long"); | |
1658 | } | |
1659 | ||
c2f5bfd6 KH |
1660 | #define DEVICE_DELTA(table, size) \ |
1661 | (((size) >= (table).StartSize && (size) <= (table).EndSize) \ | |
0c363472 | 1662 | ? (table).DeltaValue[(size) - (table).StartSize] \ |
c2f5bfd6 KH |
1663 | : 0) |
1664 | ||
1665 | void | |
1666 | adjust_anchor (struct font *font, OTF_Anchor *anchor, | |
1667 | unsigned code, int size, int *x, int *y) | |
1668 | { | |
2bded7fe | 1669 | if (anchor->AnchorFormat == 2 && font->driver->anchor_point) |
c2f5bfd6 KH |
1670 | { |
1671 | int x0, y0; | |
1672 | ||
1673 | if (font->driver->anchor_point (font, code, anchor->f.f1.AnchorPoint, | |
1674 | &x0, &y0) >= 0) | |
1675 | *x = x0, *y = y0; | |
1676 | } | |
1677 | else if (anchor->AnchorFormat == 3) | |
1678 | { | |
1679 | if (anchor->f.f2.XDeviceTable.offset) | |
1680 | *x += DEVICE_DELTA (anchor->f.f2.XDeviceTable, size); | |
1681 | if (anchor->f.f2.YDeviceTable.offset) | |
1682 | *y += DEVICE_DELTA (anchor->f.f2.YDeviceTable, size); | |
1683 | } | |
1684 | } | |
1685 | ||
733fd013 KH |
1686 | Lisp_Object |
1687 | font_otf_DeviceTable (device_table) | |
1688 | OTF_DeviceTable *device_table; | |
1689 | { | |
1690 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1691 | ||
1692 | return Fcons (make_number (len), | |
1693 | make_unibyte_string (device_table->DeltaValue, len)); | |
1694 | } | |
1695 | ||
1696 | Lisp_Object | |
1697 | font_otf_ValueRecord (value_format, value_record) | |
1698 | int value_format; | |
1699 | OTF_ValueRecord *value_record; | |
1700 | { | |
1701 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1702 | ||
1703 | if (value_format & OTF_XPlacement) | |
1704 | ASET (val, 0, value_record->XPlacement); | |
1705 | if (value_format & OTF_YPlacement) | |
1706 | ASET (val, 1, value_record->YPlacement); | |
1707 | if (value_format & OTF_XAdvance) | |
1708 | ASET (val, 2, value_record->XAdvance); | |
1709 | if (value_format & OTF_YAdvance) | |
1710 | ASET (val, 3, value_record->YAdvance); | |
1711 | if (value_format & OTF_XPlaDevice) | |
1712 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
1713 | if (value_format & OTF_YPlaDevice) | |
1714 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
1715 | if (value_format & OTF_XAdvDevice) | |
1716 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
1717 | if (value_format & OTF_YAdvDevice) | |
1718 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
1719 | return val; | |
1720 | } | |
1721 | ||
1722 | Lisp_Object | |
1723 | font_otf_Anchor (anchor) | |
1724 | OTF_Anchor *anchor; | |
1725 | { | |
1726 | Lisp_Object val; | |
1727 | ||
1728 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
1729 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
1730 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
1731 | if (anchor->AnchorFormat == 2) | |
1732 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
1733 | else | |
1734 | { | |
1735 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
1736 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
1737 | } | |
1738 | return val; | |
1739 | } | |
1740 | ||
e80e09b4 | 1741 | #define REPLACEMENT_CHARACTER 0xFFFD |
c2f5bfd6 | 1742 | |
733fd013 KH |
1743 | /* Drive FONT's OpenType FEATURES. See the comment of (sturct |
1744 | font_driver).drive_otf. */ | |
c2f5bfd6 KH |
1745 | |
1746 | int | |
733fd013 | 1747 | font_drive_otf (font, otf_features, gstring_in, from, to, gstring_out, idx, |
e80e09b4 | 1748 | alternate_subst) |
c2f5bfd6 | 1749 | struct font *font; |
733fd013 | 1750 | Lisp_Object otf_features; |
c2f5bfd6 KH |
1751 | Lisp_Object gstring_in; |
1752 | int from, to; | |
1753 | Lisp_Object gstring_out; | |
e80e09b4 | 1754 | int idx, alternate_subst; |
c2f5bfd6 | 1755 | { |
733fd013 | 1756 | Lisp_Object val; |
c2f5bfd6 KH |
1757 | int len; |
1758 | int i; | |
1759 | OTF *otf; | |
1760 | OTF_GlyphString otf_gstring; | |
1761 | OTF_Glyph *g; | |
733fd013 | 1762 | char *script, *langsys = NULL, *gsub_features = NULL, *gpos_features = NULL; |
e80e09b4 KH |
1763 | int need_cmap; |
1764 | ||
733fd013 KH |
1765 | val = XCAR (otf_features); |
1766 | script = SDATA (SYMBOL_NAME (val)); | |
1767 | otf_features = XCDR (otf_features); | |
1768 | val = XCAR (otf_features); | |
1769 | langsys = NILP (val) ? NULL : SDATA (SYMBOL_NAME (val)); | |
1770 | otf_features = XCDR (otf_features); | |
1771 | val = XCAR (otf_features); | |
1772 | if (! NILP (val)) | |
1773 | { | |
1774 | gsub_features = alloca (XINT (Flength (val)) * 6); | |
1775 | generate_otf_features (val, &script, &langsys, gsub_features); | |
1776 | } | |
1777 | otf_features = XCDR (otf_features); | |
1778 | val = XCAR (otf_features); | |
1779 | if (! NILP (val)) | |
1780 | { | |
1781 | gpos_features = alloca (XINT (Flength (val)) * 6); | |
1782 | generate_otf_features (val, &script, &langsys, gpos_features); | |
1783 | } | |
c2f5bfd6 KH |
1784 | |
1785 | otf = otf_open (font->entity, font->file_name); | |
1786 | if (! otf) | |
1787 | return 0; | |
1788 | if (OTF_get_table (otf, "head") < 0) | |
1789 | return 0; | |
e80e09b4 KH |
1790 | if (OTF_get_table (otf, "cmap") < 0) |
1791 | return 0; | |
733fd013 KH |
1792 | if ((! gsub_features || OTF_check_table (otf, "GSUB") < 0) |
1793 | && (! gpos_features || OTF_check_table (otf, "GPOS") < 0)) | |
1794 | return 0; | |
1795 | ||
c2f5bfd6 KH |
1796 | len = to - from; |
1797 | otf_gstring.size = otf_gstring.used = len; | |
1798 | otf_gstring.glyphs = (OTF_Glyph *) malloc (sizeof (OTF_Glyph) * len); | |
1799 | memset (otf_gstring.glyphs, 0, sizeof (OTF_Glyph) * len); | |
e80e09b4 | 1800 | for (i = 0, need_cmap = 0; i < len; i++) |
c2f5bfd6 KH |
1801 | { |
1802 | Lisp_Object g = LGSTRING_GLYPH (gstring_in, from + i); | |
1803 | ||
1804 | otf_gstring.glyphs[i].c = XINT (LGLYPH_CHAR (g)); | |
e80e09b4 KH |
1805 | if (otf_gstring.glyphs[i].c == REPLACEMENT_CHARACTER) |
1806 | otf_gstring.glyphs[i].c = 0; | |
1807 | if (NILP (LGLYPH_CODE (g))) | |
1808 | { | |
1809 | otf_gstring.glyphs[i].glyph_id = 0; | |
1810 | need_cmap = 1; | |
1811 | } | |
1812 | else | |
1813 | otf_gstring.glyphs[i].glyph_id = XINT (LGLYPH_CODE (g)); | |
c2f5bfd6 | 1814 | } |
e80e09b4 KH |
1815 | if (need_cmap) |
1816 | OTF_drive_cmap (otf, &otf_gstring); | |
c2f5bfd6 | 1817 | OTF_drive_gdef (otf, &otf_gstring); |
c2f5bfd6 | 1818 | |
733fd013 | 1819 | if (gsub_features) |
c2f5bfd6 | 1820 | { |
733fd013 KH |
1821 | if ((alternate_subst |
1822 | ? OTF_drive_gsub_alternate (otf, &otf_gstring, script, langsys, | |
1823 | gsub_features) | |
1824 | : OTF_drive_gsub (otf, &otf_gstring, script, langsys, | |
1825 | gsub_features)) < 0) | |
c2f5bfd6 | 1826 | { |
733fd013 KH |
1827 | free (otf_gstring.glyphs); |
1828 | return 0; | |
c2f5bfd6 | 1829 | } |
733fd013 | 1830 | if (ASIZE (gstring_out) < idx + otf_gstring.used) |
c2f5bfd6 | 1831 | { |
733fd013 KH |
1832 | free (otf_gstring.glyphs); |
1833 | return -1; | |
c2f5bfd6 | 1834 | } |
733fd013 KH |
1835 | for (i = 0, g = otf_gstring.glyphs; i < otf_gstring.used;) |
1836 | { | |
1837 | int i0 = g->f.index.from, i1 = g->f.index.to; | |
1838 | Lisp_Object glyph = LGSTRING_GLYPH (gstring_in, from + i0); | |
1839 | Lisp_Object min_idx = AREF (glyph, 0); | |
1840 | Lisp_Object max_idx = AREF (glyph, 1); | |
c2f5bfd6 | 1841 | |
733fd013 KH |
1842 | if (i0 < i1) |
1843 | { | |
1844 | int min_idx_i = XINT (min_idx), max_idx_i = XINT (max_idx); | |
e80e09b4 | 1845 | |
733fd013 KH |
1846 | for (i0++; i0 <= i1; i0++) |
1847 | { | |
1848 | glyph = LGSTRING_GLYPH (gstring_in, from + i0); | |
1849 | if (min_idx_i > XINT (AREF (glyph, 0))) | |
1850 | min_idx_i = XINT (AREF (glyph, 0)); | |
1851 | if (max_idx_i < XINT (AREF (glyph, 1))) | |
1852 | max_idx_i = XINT (AREF (glyph, 1)); | |
1853 | } | |
1854 | min_idx = make_number (min_idx_i); | |
1855 | max_idx = make_number (max_idx_i); | |
1856 | i0 = g->f.index.from; | |
1857 | } | |
1858 | for (; i < otf_gstring.used && g->f.index.from == i0; i++, g++) | |
1859 | { | |
1860 | glyph = LGSTRING_GLYPH (gstring_out, idx + i); | |
1861 | ASET (glyph, 0, min_idx); | |
1862 | ASET (glyph, 1, max_idx); | |
1863 | if (g->c > 0) | |
1864 | LGLYPH_SET_CHAR (glyph, make_number (g->c)); | |
1865 | else | |
1866 | LGLYPH_SET_CHAR (glyph, make_number (REPLACEMENT_CHARACTER)); | |
1867 | LGLYPH_SET_CODE (glyph, make_number (g->glyph_id)); | |
1868 | } | |
e80e09b4 | 1869 | } |
c2f5bfd6 KH |
1870 | } |
1871 | ||
733fd013 | 1872 | if (gpos_features) |
c2f5bfd6 | 1873 | { |
733fd013 KH |
1874 | Lisp_Object glyph; |
1875 | int u = otf->head->unitsPerEm; | |
1876 | int size = font->pixel_size; | |
1877 | Lisp_Object base = Qnil, mark = Qnil; | |
c2f5bfd6 | 1878 | |
733fd013 KH |
1879 | if (OTF_drive_gpos (otf, &otf_gstring, script, langsys, |
1880 | gpos_features) < 0) | |
c2f5bfd6 | 1881 | { |
733fd013 KH |
1882 | free (otf_gstring.glyphs); |
1883 | return 0; | |
1884 | } | |
1885 | for (i = 0, g = otf_gstring.glyphs; i < otf_gstring.used; i++, g++) | |
1886 | { | |
1887 | Lisp_Object prev; | |
1888 | int xoff = 0, yoff = 0, width_adjust = 0; | |
c2f5bfd6 | 1889 | |
733fd013 KH |
1890 | if (! g->glyph_id) |
1891 | continue; | |
1892 | ||
1893 | switch (g->positioning_type) | |
1894 | { | |
1895 | case 0: | |
1896 | break; | |
1897 | case 1: case 2: | |
c2f5bfd6 | 1898 | { |
733fd013 KH |
1899 | int format = g->f.f1.format; |
1900 | ||
1901 | if (format & OTF_XPlacement) | |
1902 | xoff = g->f.f1.value->XPlacement * size / u; | |
1903 | if (format & OTF_XPlaDevice) | |
1904 | xoff += DEVICE_DELTA (g->f.f1.value->XPlaDevice, size); | |
1905 | if (format & OTF_YPlacement) | |
1906 | yoff = - (g->f.f1.value->YPlacement * size / u); | |
1907 | if (format & OTF_YPlaDevice) | |
1908 | yoff -= DEVICE_DELTA (g->f.f1.value->YPlaDevice, size); | |
1909 | if (format & OTF_XAdvance) | |
1910 | width_adjust += g->f.f1.value->XAdvance * size / u; | |
1911 | if (format & OTF_XAdvDevice) | |
1912 | width_adjust += DEVICE_DELTA (g->f.f1.value->XAdvDevice, size); | |
c2f5bfd6 | 1913 | } |
733fd013 KH |
1914 | break; |
1915 | case 3: | |
1916 | /* Not yet supported. */ | |
1917 | break; | |
1918 | case 4: case 5: | |
1919 | if (NILP (base)) | |
1920 | break; | |
1921 | prev = base; | |
1922 | goto label_adjust_anchor; | |
1923 | default: /* i.e. case 6 */ | |
1924 | if (NILP (mark)) | |
1925 | break; | |
1926 | prev = mark; | |
0c363472 | 1927 | |
733fd013 KH |
1928 | label_adjust_anchor: |
1929 | { | |
1930 | int base_x, base_y, mark_x, mark_y, width; | |
1931 | unsigned code; | |
1932 | ||
1933 | base_x = g->f.f4.base_anchor->XCoordinate * size / u; | |
1934 | base_y = g->f.f4.base_anchor->YCoordinate * size / u; | |
1935 | mark_x = g->f.f4.mark_anchor->XCoordinate * size / u; | |
1936 | mark_y = g->f.f4.mark_anchor->YCoordinate * size / u; | |
1937 | ||
1938 | code = XINT (LGLYPH_CODE (prev)); | |
1939 | if (g->f.f4.base_anchor->AnchorFormat != 1) | |
1940 | adjust_anchor (font, g->f.f4.base_anchor, | |
1941 | code, size, &base_x, &base_y); | |
1942 | if (g->f.f4.mark_anchor->AnchorFormat != 1) | |
1943 | adjust_anchor (font, g->f.f4.mark_anchor, | |
1944 | code, size, &mark_x, &mark_y); | |
1945 | ||
1946 | if (NILP (LGLYPH_WIDTH (prev))) | |
1947 | { | |
1948 | width = font->driver->text_extents (font, &code, 1, NULL); | |
1949 | LGLYPH_SET_WIDTH (prev, make_number (width)); | |
1950 | } | |
1951 | else | |
1952 | width = XINT (LGLYPH_WIDTH (prev)); | |
1953 | xoff = XINT (LGLYPH_XOFF (prev)) + (base_x - width) - mark_x; | |
1954 | yoff = XINT (LGLYPH_YOFF (prev)) + mark_y - base_y; | |
1955 | } | |
1956 | } | |
1957 | if (xoff || yoff || width_adjust) | |
1958 | { | |
1959 | Lisp_Object adjustment = Fmake_vector (make_number (3), Qnil); | |
0c363472 | 1960 | |
733fd013 KH |
1961 | ASET (adjustment, 0, make_number (xoff)); |
1962 | ASET (adjustment, 1, make_number (yoff)); | |
1963 | ASET (adjustment, 2, make_number (width_adjust)); | |
1964 | LGLYPH_SET_ADJUSTMENT (glyph, adjustment); | |
1965 | } | |
1966 | if (g->GlyphClass == OTF_GlyphClass0) | |
1967 | base = mark = glyph; | |
1968 | else if (g->GlyphClass == OTF_GlyphClassMark) | |
1969 | mark = glyph; | |
1970 | else | |
1971 | base = glyph; | |
0c363472 | 1972 | } |
c2f5bfd6 KH |
1973 | } |
1974 | ||
1975 | free (otf_gstring.glyphs); | |
e80e09b4 | 1976 | return i; |
c2f5bfd6 KH |
1977 | } |
1978 | ||
1979 | #endif /* HAVE_LIBOTF */ | |
1980 | ||
1981 | \f | |
e80e09b4 KH |
1982 | /* G-string (glyph string) handler */ |
1983 | ||
1984 | /* G-string is a vector of the form [HEADER GLYPH ...]. | |
1985 | See the docstring of `font-make-gstring' for more detail. */ | |
c2f5bfd6 KH |
1986 | |
1987 | struct font * | |
1988 | font_prepare_composition (cmp) | |
1989 | struct composition *cmp; | |
1990 | { | |
1991 | Lisp_Object gstring | |
1992 | = AREF (XHASH_TABLE (composition_hash_table)->key_and_value, | |
1993 | cmp->hash_index * 2); | |
1994 | struct font *font = XSAVE_VALUE (LGSTRING_FONT (gstring))->pointer; | |
1995 | int len = LGSTRING_LENGTH (gstring); | |
1996 | int i; | |
1997 | ||
1998 | cmp->font = font; | |
1999 | cmp->lbearing = cmp->rbearing = cmp->pixel_width = 0; | |
2000 | cmp->ascent = font->ascent; | |
2001 | cmp->descent = font->descent; | |
2002 | ||
2003 | for (i = 0; i < len; i++) | |
2004 | { | |
2005 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 2006 | unsigned code; |
c2f5bfd6 KH |
2007 | struct font_metrics metrics; |
2008 | ||
10d16101 KH |
2009 | if (NILP (LGLYPH_FROM (g))) |
2010 | break; | |
2011 | code = XINT (LGLYPH_CODE (g)); | |
c2f5bfd6 KH |
2012 | font->driver->text_extents (font, &code, 1, &metrics); |
2013 | LGLYPH_SET_WIDTH (g, make_number (metrics.width)); | |
0c363472 KH |
2014 | metrics.lbearing += LGLYPH_XOFF (g); |
2015 | metrics.rbearing += LGLYPH_XOFF (g); | |
2016 | metrics.ascent += LGLYPH_YOFF (g); | |
2017 | metrics.descent += LGLYPH_YOFF (g); | |
c2f5bfd6 KH |
2018 | |
2019 | if (cmp->lbearing > cmp->pixel_width + metrics.lbearing) | |
2020 | cmp->lbearing = cmp->pixel_width + metrics.lbearing; | |
2021 | if (cmp->rbearing < cmp->pixel_width + metrics.rbearing) | |
2022 | cmp->rbearing = cmp->pixel_width + metrics.rbearing; | |
2023 | if (cmp->ascent < metrics.ascent) | |
2024 | cmp->ascent = metrics.ascent; | |
2025 | if (cmp->descent < metrics.descent) | |
2026 | cmp->descent = metrics.descent; | |
0c363472 | 2027 | cmp->pixel_width += metrics.width + LGLYPH_WADJUST (g); |
c2f5bfd6 | 2028 | } |
e80e09b4 | 2029 | cmp->glyph_len = i; |
c2f5bfd6 KH |
2030 | LGSTRING_SET_LBEARING (gstring, make_number (cmp->lbearing)); |
2031 | LGSTRING_SET_RBEARING (gstring, make_number (cmp->rbearing)); | |
2032 | LGSTRING_SET_WIDTH (gstring, make_number (cmp->pixel_width)); | |
2033 | LGSTRING_SET_ASCENT (gstring, make_number (cmp->ascent)); | |
2034 | LGSTRING_SET_DESCENT (gstring, make_number (cmp->descent)); | |
2035 | ||
2036 | return font; | |
2037 | } | |
2038 | ||
2039 | int | |
2040 | font_gstring_produce (old, from, to, new, idx, code, n) | |
2041 | Lisp_Object old; | |
2042 | int from, to; | |
2043 | Lisp_Object new; | |
2044 | int idx; | |
2045 | unsigned *code; | |
2046 | int n; | |
2047 | { | |
2048 | Lisp_Object min_idx, max_idx; | |
2049 | int i; | |
2050 | ||
2051 | if (idx + n > ASIZE (new)) | |
2052 | return -1; | |
2053 | if (from == to) | |
2054 | { | |
2055 | if (from == 0) | |
2056 | { | |
2057 | min_idx = make_number (0); | |
2058 | max_idx = make_number (1); | |
2059 | } | |
2060 | else | |
2061 | { | |
2062 | min_idx = AREF (AREF (old, from - 1), 0); | |
2063 | max_idx = AREF (AREF (old, from - 1), 1); | |
2064 | } | |
2065 | } | |
2066 | else if (from + 1 == to) | |
2067 | { | |
2068 | min_idx = AREF (AREF (old, from), 0); | |
2069 | max_idx = AREF (AREF (old, from), 1); | |
2070 | } | |
2071 | else | |
2072 | { | |
2073 | int min_idx_i = XINT (AREF (AREF (old, from), 0)); | |
2074 | int max_idx_i = XINT (AREF (AREF (old, from), 1)); | |
2075 | ||
2076 | for (i = from + 1; i < to; i++) | |
2077 | { | |
2078 | if (min_idx_i > XINT (AREF (AREF (old, i), 0))) | |
2079 | min_idx_i = XINT (AREF (AREF (old, i), 0)); | |
2080 | if (max_idx_i < XINT (AREF (AREF (old, i), 1))) | |
2081 | max_idx_i = XINT (AREF (AREF (old, i), 1)); | |
2082 | } | |
2083 | min_idx = make_number (min_idx_i); | |
2084 | max_idx = make_number (max_idx_i); | |
2085 | } | |
2086 | ||
2087 | for (i = 0; i < n; i++) | |
2088 | { | |
2089 | ASET (AREF (new, idx + i), 0, min_idx); | |
2090 | ASET (AREF (new, idx + i), 1, max_idx); | |
2091 | ASET (AREF (new, idx + i), 2, make_number (code[i])); | |
2092 | } | |
2093 | ||
2094 | return 0; | |
2095 | } | |
2096 | \f | |
2097 | /* Font sorting */ | |
2098 | ||
9331887d | 2099 | static unsigned font_score P_ ((Lisp_Object, Lisp_Object *)); |
c2f5bfd6 KH |
2100 | static int font_compare P_ ((const void *, const void *)); |
2101 | static Lisp_Object font_sort_entites P_ ((Lisp_Object, Lisp_Object, | |
2102 | Lisp_Object, Lisp_Object)); | |
2103 | ||
2104 | /* We sort fonts by scoring each of them against a specified | |
2105 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2106 | the value is, the closer the font is to the font-spec. | |
2107 | ||
2108 | Each 1-bit in the highest 4 bits of the score is used for atomic | |
2109 | properties FOUNDRY, FAMILY, ADSTYLE, and REGISTRY. | |
2110 | ||
2111 | Each 7-bit in the lowest 28 bits are used for numeric properties | |
2112 | WEIGHT, SLANT, WIDTH, and SIZE. */ | |
2113 | ||
2114 | /* How many bits to shift to store the difference value of each font | |
2115 | property in a score. */ | |
2116 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; | |
2117 | ||
9331887d KH |
2118 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2119 | The return value indicates how different ENTITY is compared with | |
2120 | SPEC_PROP. */ | |
c2f5bfd6 KH |
2121 | |
2122 | static unsigned | |
9331887d KH |
2123 | font_score (entity, spec_prop) |
2124 | Lisp_Object entity, *spec_prop; | |
c2f5bfd6 KH |
2125 | { |
2126 | unsigned score = 0; | |
2127 | int i; | |
9331887d | 2128 | /* Score four atomic fields. Maximum difference is 1. */ |
c2f5bfd6 | 2129 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
9331887d KH |
2130 | if (! NILP (spec_prop[i]) |
2131 | && ! EQ (spec_prop[i], AREF (entity, i))) | |
2132 | score |= 1 << sort_shift_bits[i]; | |
c2f5bfd6 | 2133 | |
9331887d | 2134 | /* Score four numeric fields. Maximum difference is 127. */ |
c2f5bfd6 KH |
2135 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) |
2136 | { | |
c2f5bfd6 KH |
2137 | Lisp_Object entity_val = AREF (entity, i); |
2138 | ||
9331887d | 2139 | if (! NILP (spec_prop[i]) && ! EQ (spec_prop[i], entity_val)) |
c2f5bfd6 KH |
2140 | { |
2141 | if (! INTEGERP (entity_val)) | |
2142 | score |= 127 << sort_shift_bits[i]; | |
9331887d | 2143 | else |
c2f5bfd6 | 2144 | { |
9331887d | 2145 | int diff = XINT (entity_val) - XINT (spec_prop[i]); |
c2f5bfd6 KH |
2146 | |
2147 | if (diff < 0) | |
2148 | diff = - diff; | |
9331887d KH |
2149 | if (i == FONT_SIZE_INDEX) |
2150 | { | |
2151 | if (XINT (entity_val) > 0 | |
2152 | && diff > FONT_PIXEL_SIZE_QUANTUM) | |
2153 | score |= min (diff, 127) << sort_shift_bits[i]; | |
2154 | } | |
2155 | else | |
2156 | score |= min (diff, 127) << sort_shift_bits[i]; | |
c2f5bfd6 KH |
2157 | } |
2158 | } | |
2159 | } | |
2160 | ||
2161 | return score; | |
2162 | } | |
2163 | ||
2164 | ||
2165 | /* The comparison function for qsort. */ | |
2166 | ||
2167 | static int | |
2168 | font_compare (d1, d2) | |
2169 | const void *d1, *d2; | |
2170 | { | |
2171 | return (*(unsigned *) d1 < *(unsigned *) d2 | |
2172 | ? -1 : *(unsigned *) d1 > *(unsigned *) d2); | |
2173 | } | |
2174 | ||
2175 | ||
2176 | /* The structure for elements being sorted by qsort. */ | |
2177 | struct font_sort_data | |
2178 | { | |
2179 | unsigned score; | |
2180 | Lisp_Object entity; | |
2181 | }; | |
2182 | ||
2183 | ||
2184 | /* Sort font-entities in vector VEC by closeness to font-spec PREFER. | |
2185 | If PREFER specifies a point-size, calculate the corresponding | |
9331887d KH |
2186 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
2187 | of FRAME before sorting. If SPEC is not nil, it is a font-spec to | |
2188 | get the font-entities in VEC. */ | |
c2f5bfd6 KH |
2189 | |
2190 | static Lisp_Object | |
2191 | font_sort_entites (vec, prefer, frame, spec) | |
2192 | Lisp_Object vec, prefer, frame, spec; | |
2193 | { | |
9331887d | 2194 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
c2f5bfd6 KH |
2195 | int len, i; |
2196 | struct font_sort_data *data; | |
c2f5bfd6 KH |
2197 | USE_SAFE_ALLOCA; |
2198 | ||
2199 | len = ASIZE (vec); | |
2200 | if (len <= 1) | |
2201 | return vec; | |
2202 | ||
9331887d KH |
2203 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_SIZE_INDEX; i++) |
2204 | prefer_prop[i] = AREF (prefer, i); | |
c2f5bfd6 KH |
2205 | |
2206 | if (! NILP (spec)) | |
2207 | { | |
2208 | /* As it is assured that all fonts in VEC match with SPEC, we | |
2209 | should ignore properties specified in SPEC. So, set the | |
9331887d | 2210 | corresponding properties in PREFER_PROP to nil. */ |
c2f5bfd6 | 2211 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) |
9331887d KH |
2212 | if (! NILP (AREF (spec, i))) |
2213 | prefer_prop[i++] = Qnil; | |
c2f5bfd6 KH |
2214 | } |
2215 | ||
9331887d KH |
2216 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2217 | prefer_prop[FONT_SIZE_INDEX] | |
2218 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2219 | ||
c2f5bfd6 KH |
2220 | /* Scoring and sorting. */ |
2221 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * len); | |
2222 | for (i = 0; i < len; i++) | |
2223 | { | |
2224 | data[i].entity = AREF (vec, i); | |
9331887d | 2225 | data[i].score = font_score (data[i].entity, prefer_prop); |
c2f5bfd6 KH |
2226 | } |
2227 | qsort (data, len, sizeof *data, font_compare); | |
2228 | for (i = 0; i < len; i++) | |
2229 | ASET (vec, i, data[i].entity); | |
2230 | SAFE_FREE (); | |
2231 | ||
2232 | return vec; | |
2233 | } | |
2234 | ||
2235 | \f | |
2236 | /* API of Font Service Layer. */ | |
2237 | ||
2238 | void | |
2239 | font_update_sort_order (order) | |
2240 | int *order; | |
2241 | { | |
2242 | int i, shift_bits = 21; | |
2243 | ||
2244 | for (i = 0; i < 4; i++, shift_bits -= 7) | |
2245 | { | |
2246 | int xlfd_idx = order[i]; | |
2247 | ||
2248 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2249 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2250 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2251 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2252 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2253 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2254 | else | |
2255 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2256 | } | |
2257 | } | |
2258 | ||
2259 | Lisp_Object | |
2260 | font_symbolic_weight (font) | |
2261 | Lisp_Object font; | |
2262 | { | |
2263 | Lisp_Object weight = AREF (font, FONT_WEIGHT_INDEX); | |
2264 | ||
2265 | if (INTEGERP (weight)) | |
2266 | weight = prop_numeric_to_name (FONT_WEIGHT_INDEX, XINT (weight)); | |
2267 | return weight; | |
2268 | } | |
2269 | ||
2270 | Lisp_Object | |
2271 | font_symbolic_slant (font) | |
2272 | Lisp_Object font; | |
2273 | { | |
2274 | Lisp_Object slant = AREF (font, FONT_SLANT_INDEX); | |
2275 | ||
2276 | if (INTEGERP (slant)) | |
2277 | slant = prop_numeric_to_name (FONT_SLANT_INDEX, XINT (slant)); | |
2278 | return slant; | |
2279 | } | |
2280 | ||
2281 | Lisp_Object | |
2282 | font_symbolic_width (font) | |
2283 | Lisp_Object font; | |
2284 | { | |
2285 | Lisp_Object width = AREF (font, FONT_WIDTH_INDEX); | |
2286 | ||
2287 | if (INTEGERP (width)) | |
2288 | width = prop_numeric_to_name (FONT_WIDTH_INDEX, XINT (width)); | |
2289 | return width; | |
2290 | } | |
2291 | ||
ef18374f KH |
2292 | int |
2293 | font_match_p (spec, entity) | |
2294 | Lisp_Object spec, entity; | |
2295 | { | |
2296 | int i; | |
2297 | ||
2298 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2299 | if (! NILP (AREF (spec, i)) | |
2300 | && ! EQ (AREF (spec, i), AREF (entity, i))) | |
2301 | return 0; | |
2302 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX)) | |
2303 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0 | |
2304 | && (XINT (AREF (spec, FONT_SIZE_INDEX)) | |
2305 | != XINT (AREF (entity, FONT_SIZE_INDEX)))) | |
2306 | return 0; | |
2307 | return 1; | |
2308 | } | |
2309 | ||
c2f5bfd6 KH |
2310 | Lisp_Object |
2311 | font_find_object (font) | |
2312 | struct font *font; | |
2313 | { | |
2314 | Lisp_Object tail, elt; | |
2315 | ||
2316 | for (tail = AREF (font->entity, FONT_OBJLIST_INDEX); CONSP (tail); | |
2317 | tail = XCDR (tail)) | |
2318 | { | |
2319 | elt = XCAR (tail); | |
2320 | if (font == XSAVE_VALUE (elt)->pointer | |
2321 | && XSAVE_VALUE (elt)->integer > 0) | |
2322 | return elt; | |
2323 | } | |
2324 | abort (); | |
2325 | return Qnil; | |
2326 | } | |
2327 | ||
2328 | static Lisp_Object scratch_font_spec, scratch_font_prefer; | |
2329 | ||
2330 | /* Return a vector of font-entities matching with SPEC on frame F. */ | |
2331 | ||
2332 | static Lisp_Object | |
2333 | font_list_entities (frame, spec) | |
2334 | Lisp_Object frame, spec; | |
2335 | { | |
2336 | FRAME_PTR f = XFRAME (frame); | |
2337 | struct font_driver_list *driver_list = f->font_driver_list; | |
a9262bb8 | 2338 | Lisp_Object ftype, family, size, alternate_familes; |
c2f5bfd6 KH |
2339 | Lisp_Object *vec = alloca (sizeof (Lisp_Object) * num_font_drivers); |
2340 | int i; | |
2341 | ||
2342 | if (! vec) | |
2343 | return null_vector; | |
2344 | ||
2345 | family = AREF (spec, FONT_FAMILY_INDEX); | |
2346 | if (NILP (family)) | |
2347 | alternate_familes = Qnil; | |
2348 | else | |
2349 | { | |
2350 | if (NILP (font_family_alist) | |
2351 | && !NILP (Vface_alternative_font_family_alist)) | |
2352 | build_font_family_alist (); | |
2353 | alternate_familes = assq_no_quit (family, font_family_alist); | |
2354 | if (! NILP (alternate_familes)) | |
2355 | alternate_familes = XCDR (alternate_familes); | |
2356 | } | |
a9262bb8 KH |
2357 | size = AREF (spec, FONT_SIZE_INDEX); |
2358 | if (FLOATP (size)) | |
9331887d | 2359 | ASET (spec, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); |
a9262bb8 | 2360 | |
c2f5bfd6 KH |
2361 | xassert (ASIZE (spec) == FONT_SPEC_MAX); |
2362 | ftype = AREF (spec, FONT_TYPE_INDEX); | |
2363 | ||
2364 | for (i = 0; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
2365 | if (driver_list->on |
2366 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 KH |
2367 | { |
2368 | Lisp_Object cache = driver_list->driver->get_cache (frame); | |
2369 | Lisp_Object tail = alternate_familes; | |
2370 | Lisp_Object val; | |
2371 | ||
2372 | xassert (CONSP (cache)); | |
2373 | ASET (spec, FONT_TYPE_INDEX, driver_list->driver->type); | |
2374 | ASET (spec, FONT_FAMILY_INDEX, family); | |
2375 | ||
2376 | while (1) | |
2377 | { | |
2378 | val = assoc_no_quit (spec, XCDR (cache)); | |
2379 | if (CONSP (val)) | |
2380 | val = XCDR (val); | |
2381 | else | |
2382 | { | |
2383 | val = driver_list->driver->list (frame, spec); | |
2384 | if (VECTORP (val)) | |
2385 | XSETCDR (cache, Fcons (Fcons (Fcopy_sequence (spec), val), | |
2386 | XCDR (cache))); | |
2387 | } | |
2388 | if (VECTORP (val) && ASIZE (val) > 0) | |
2389 | { | |
2390 | vec[i++] = val; | |
2391 | break; | |
2392 | } | |
2393 | if (NILP (tail)) | |
2394 | break; | |
2395 | ASET (spec, FONT_FAMILY_INDEX, XCAR (tail)); | |
2396 | tail = XCDR (tail); | |
2397 | } | |
2398 | } | |
2399 | ASET (spec, FONT_TYPE_INDEX, ftype); | |
2400 | ASET (spec, FONT_FAMILY_INDEX, family); | |
a9262bb8 | 2401 | ASET (spec, FONT_SIZE_INDEX, size); |
c2f5bfd6 KH |
2402 | return (i > 0 ? Fvconcat (i, vec) : null_vector); |
2403 | } | |
2404 | ||
e950d6f1 KH |
2405 | static Lisp_Object |
2406 | font_matching_entity (frame, spec) | |
2407 | Lisp_Object frame, spec; | |
2408 | { | |
2409 | FRAME_PTR f = XFRAME (frame); | |
2410 | struct font_driver_list *driver_list = f->font_driver_list; | |
2411 | Lisp_Object ftype, size, entity; | |
2412 | ||
2413 | ftype = AREF (spec, FONT_TYPE_INDEX); | |
2414 | size = AREF (spec, FONT_SIZE_INDEX); | |
2415 | if (FLOATP (size)) | |
2416 | ASET (spec, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
2417 | entity = Qnil; | |
2418 | for (; driver_list; driver_list = driver_list->next) | |
2419 | if (driver_list->on | |
2420 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2421 | { | |
2422 | Lisp_Object cache = driver_list->driver->get_cache (frame); | |
7c8f6ffd | 2423 | Lisp_Object key; |
e950d6f1 KH |
2424 | |
2425 | xassert (CONSP (cache)); | |
2426 | ASET (spec, FONT_TYPE_INDEX, driver_list->driver->type); | |
2427 | key = Fcons (spec, Qnil); | |
2428 | entity = assoc_no_quit (key, XCDR (cache)); | |
2429 | if (CONSP (entity)) | |
2430 | entity = XCDR (entity); | |
2431 | else | |
2432 | { | |
2433 | entity = driver_list->driver->match (frame, spec); | |
2434 | if (! NILP (entity)) | |
2435 | { | |
2436 | XSETCAR (key, Fcopy_sequence (spec)); | |
2437 | XSETCDR (cache, Fcons (Fcons (key, entity), XCDR (cache))); | |
2438 | } | |
2439 | } | |
2440 | if (! NILP (entity)) | |
2441 | break; | |
2442 | } | |
2443 | ASET (spec, FONT_TYPE_INDEX, ftype); | |
2444 | ASET (spec, FONT_SIZE_INDEX, size); | |
2445 | return entity; | |
2446 | } | |
2447 | ||
c2f5bfd6 KH |
2448 | static int num_fonts; |
2449 | ||
2450 | static Lisp_Object | |
2451 | font_open_entity (f, entity, pixel_size) | |
2452 | FRAME_PTR f; | |
2453 | Lisp_Object entity; | |
2454 | int pixel_size; | |
2455 | { | |
2456 | struct font_driver_list *driver_list; | |
2457 | Lisp_Object objlist, size, val; | |
2458 | struct font *font; | |
2459 | ||
2460 | size = AREF (entity, FONT_SIZE_INDEX); | |
2461 | xassert (NATNUMP (size)); | |
2462 | if (XINT (size) != 0) | |
2463 | pixel_size = XINT (size); | |
2464 | ||
2465 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); | |
2466 | objlist = XCDR (objlist)) | |
2467 | { | |
2468 | font = XSAVE_VALUE (XCAR (objlist))->pointer; | |
2469 | if (font->pixel_size == pixel_size) | |
2470 | { | |
2471 | XSAVE_VALUE (XCAR (objlist))->integer++; | |
2472 | return XCAR (objlist); | |
2473 | } | |
2474 | } | |
2475 | ||
2476 | xassert (FONT_ENTITY_P (entity)); | |
2477 | val = AREF (entity, FONT_TYPE_INDEX); | |
2478 | for (driver_list = f->font_driver_list; | |
2479 | driver_list && ! EQ (driver_list->driver->type, val); | |
2480 | driver_list = driver_list->next); | |
2481 | if (! driver_list) | |
2482 | return Qnil; | |
2483 | ||
2484 | font = driver_list->driver->open (f, entity, pixel_size); | |
2485 | if (! font) | |
2486 | return Qnil; | |
e80e09b4 KH |
2487 | font->scalable = XINT (size) == 0; |
2488 | ||
c2f5bfd6 KH |
2489 | val = make_save_value (font, 1); |
2490 | ASET (entity, FONT_OBJLIST_INDEX, | |
2491 | Fcons (val, AREF (entity, FONT_OBJLIST_INDEX))); | |
2492 | num_fonts++; | |
2493 | return val; | |
2494 | } | |
2495 | ||
2496 | void | |
2497 | font_close_object (f, font_object) | |
2498 | FRAME_PTR f; | |
2499 | Lisp_Object font_object; | |
2500 | { | |
10d16101 KH |
2501 | struct font *font = XSAVE_VALUE (font_object)->pointer; |
2502 | Lisp_Object objlist; | |
c2f5bfd6 KH |
2503 | Lisp_Object tail, prev = Qnil; |
2504 | ||
10d16101 KH |
2505 | XSAVE_VALUE (font_object)->integer--; |
2506 | xassert (XSAVE_VALUE (font_object)->integer >= 0); | |
2507 | if (XSAVE_VALUE (font_object)->integer > 0) | |
2508 | return; | |
2509 | ||
2510 | objlist = AREF (font->entity, FONT_OBJLIST_INDEX); | |
c2f5bfd6 KH |
2511 | for (prev = Qnil, tail = objlist; CONSP (tail); |
2512 | prev = tail, tail = XCDR (tail)) | |
2513 | if (EQ (font_object, XCAR (tail))) | |
2514 | { | |
10d16101 KH |
2515 | if (font->driver->close) |
2516 | font->driver->close (f, font); | |
2517 | XSAVE_VALUE (font_object)->pointer = NULL; | |
2518 | if (NILP (prev)) | |
2519 | ASET (font->entity, FONT_OBJLIST_INDEX, XCDR (objlist)); | |
2520 | else | |
2521 | XSETCDR (prev, XCDR (objlist)); | |
2522 | return; | |
c2f5bfd6 | 2523 | } |
10d16101 | 2524 | abort (); |
c2f5bfd6 KH |
2525 | } |
2526 | ||
2527 | int | |
1b834a8d | 2528 | font_has_char (f, font, c) |
c2f5bfd6 | 2529 | FRAME_PTR f; |
1b834a8d | 2530 | Lisp_Object font; |
c2f5bfd6 KH |
2531 | int c; |
2532 | { | |
1b834a8d | 2533 | struct font *fontp; |
c2f5bfd6 | 2534 | |
1b834a8d KH |
2535 | if (FONT_ENTITY_P (font)) |
2536 | { | |
2537 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2538 | struct font_driver_list *driver_list; | |
2539 | ||
2540 | for (driver_list = f->font_driver_list; | |
2541 | driver_list && ! EQ (driver_list->driver->type, type); | |
2542 | driver_list = driver_list->next); | |
2543 | if (! driver_list) | |
2544 | return 0; | |
2545 | if (! driver_list->driver->has_char) | |
2546 | return -1; | |
2547 | return driver_list->driver->has_char (font, c); | |
2548 | } | |
2549 | ||
2550 | xassert (FONT_OBJECT_P (font)); | |
2551 | fontp = XSAVE_VALUE (font)->pointer; | |
2552 | ||
2553 | if (fontp->driver->has_char) | |
2554 | { | |
2555 | int result = fontp->driver->has_char (fontp->entity, c); | |
2556 | ||
2557 | if (result >= 0) | |
2558 | return result; | |
2559 | } | |
2560 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2561 | } |
2562 | ||
2563 | unsigned | |
2564 | font_encode_char (font_object, c) | |
2565 | Lisp_Object font_object; | |
2566 | int c; | |
2567 | { | |
2568 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
2569 | ||
2570 | return font->driver->encode_char (font, c); | |
2571 | } | |
2572 | ||
ef18374f | 2573 | Lisp_Object |
c2f5bfd6 KH |
2574 | font_get_name (font_object) |
2575 | Lisp_Object font_object; | |
2576 | { | |
2577 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
ef18374f KH |
2578 | char *name = (font->font.full_name ? font->font.full_name |
2579 | : font->font.name ? font->font.name | |
2580 | : NULL); | |
c2f5bfd6 | 2581 | |
ef18374f KH |
2582 | return (name ? make_unibyte_string (name, strlen (name)) : null_string); |
2583 | } | |
2584 | ||
2585 | Lisp_Object | |
2586 | font_get_spec (font_object) | |
2587 | Lisp_Object font_object; | |
2588 | { | |
2589 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
2590 | Lisp_Object spec = Ffont_spec (0, NULL); | |
2591 | int i; | |
2592 | ||
2593 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
2594 | ASET (spec, i, AREF (font->entity, i)); | |
2595 | ASET (spec, FONT_SIZE_INDEX, make_number (font->pixel_size)); | |
2596 | return spec; | |
c2f5bfd6 KH |
2597 | } |
2598 | ||
2599 | Lisp_Object | |
2600 | font_get_frame (font) | |
2601 | Lisp_Object font; | |
2602 | { | |
2603 | if (FONT_OBJECT_P (font)) | |
2604 | font = ((struct font *) XSAVE_VALUE (font)->pointer)->entity; | |
2605 | xassert (FONT_ENTITY_P (font)); | |
2606 | return AREF (font, FONT_FRAME_INDEX); | |
2607 | } | |
2608 | ||
ef18374f KH |
2609 | /* Find a font entity best matching with LFACE. If SPEC is non-nil, |
2610 | the font must exactly match with it. */ | |
c2f5bfd6 KH |
2611 | |
2612 | Lisp_Object | |
2613 | font_find_for_lface (f, lface, spec) | |
2614 | FRAME_PTR f; | |
2615 | Lisp_Object *lface; | |
2616 | Lisp_Object spec; | |
2617 | { | |
ef18374f | 2618 | Lisp_Object frame, entities; |
c2f5bfd6 | 2619 | int i; |
c2f5bfd6 | 2620 | |
fe5ddfbc | 2621 | XSETFRAME (frame, f); |
c2f5bfd6 | 2622 | |
fe5ddfbc | 2623 | if (NILP (spec)) |
1b834a8d | 2624 | { |
fe5ddfbc KH |
2625 | for (i = 0; i < FONT_SPEC_MAX; i++) |
2626 | ASET (scratch_font_spec, i, Qnil); | |
2627 | ASET (scratch_font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
1b834a8d | 2628 | |
fe5ddfbc KH |
2629 | if (! NILP (lface[LFACE_FAMILY_INDEX])) |
2630 | font_merge_old_spec (Qnil, lface[LFACE_FAMILY_INDEX], Qnil, | |
2631 | scratch_font_spec); | |
2632 | entities = font_list_entities (frame, scratch_font_spec); | |
2633 | while (ASIZE (entities) == 0) | |
c2f5bfd6 | 2634 | { |
fe5ddfbc KH |
2635 | /* Try without FOUNDRY or FAMILY. */ |
2636 | if (! NILP (AREF (scratch_font_spec, FONT_FOUNDRY_INDEX))) | |
2637 | { | |
2638 | ASET (scratch_font_spec, FONT_FOUNDRY_INDEX, Qnil); | |
2639 | entities = font_list_entities (frame, scratch_font_spec); | |
2640 | } | |
2641 | else if (! NILP (AREF (scratch_font_spec, FONT_FAMILY_INDEX))) | |
2642 | { | |
2643 | ASET (scratch_font_spec, FONT_FAMILY_INDEX, Qnil); | |
2644 | entities = font_list_entities (frame, scratch_font_spec); | |
2645 | } | |
2646 | else | |
2647 | break; | |
c2f5bfd6 | 2648 | } |
fe5ddfbc KH |
2649 | } |
2650 | else | |
2651 | { | |
2652 | for (i = 0; i < FONT_SPEC_MAX; i++) | |
2653 | ASET (scratch_font_spec, i, AREF (spec, i)); | |
2654 | if (NILP (AREF (spec, FONT_REGISTRY_INDEX))) | |
2655 | ASET (scratch_font_spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
2656 | entities = font_list_entities (frame, scratch_font_spec); | |
c2f5bfd6 KH |
2657 | } |
2658 | ||
fe5ddfbc KH |
2659 | if (ASIZE (entities) == 0) |
2660 | return Qnil; | |
c2f5bfd6 KH |
2661 | if (ASIZE (entities) > 1) |
2662 | { | |
fe5ddfbc | 2663 | /* Sort fonts by properties specified in LFACE. */ |
ec6fe57c | 2664 | Lisp_Object prefer = scratch_font_prefer; |
9331887d | 2665 | double pt; |
ef18374f | 2666 | |
fe5ddfbc KH |
2667 | if (! NILP (lface[LFACE_FAMILY_INDEX])) |
2668 | font_merge_old_spec (Qnil, lface[LFACE_FAMILY_INDEX], Qnil, prefer); | |
ef18374f | 2669 | ASET (prefer, FONT_WEIGHT_INDEX, |
ec6fe57c | 2670 | font_prop_validate_style (FONT_WEIGHT_INDEX, QCweight, |
ef18374f KH |
2671 | lface[LFACE_WEIGHT_INDEX])); |
2672 | ASET (prefer, FONT_SLANT_INDEX, | |
ec6fe57c | 2673 | font_prop_validate_style (FONT_SLANT_INDEX, QCslant, |
ef18374f KH |
2674 | lface[LFACE_SLANT_INDEX])); |
2675 | ASET (prefer, FONT_WIDTH_INDEX, | |
ec6fe57c | 2676 | font_prop_validate_style (FONT_WIDTH_INDEX, QCwidth, |
ef18374f | 2677 | lface[LFACE_SWIDTH_INDEX])); |
9331887d KH |
2678 | pt = XINT (lface[LFACE_HEIGHT_INDEX]); |
2679 | ASET (prefer, FONT_SIZE_INDEX, make_float (pt / 10)); | |
c2f5bfd6 | 2680 | |
c2f5bfd6 KH |
2681 | font_sort_entites (entities, prefer, frame, spec); |
2682 | } | |
2683 | ||
2684 | return AREF (entities, 0); | |
2685 | } | |
2686 | ||
2687 | Lisp_Object | |
733fd013 | 2688 | font_open_for_lface (f, entity, lface, spec) |
c2f5bfd6 | 2689 | FRAME_PTR f; |
c2f5bfd6 | 2690 | Lisp_Object entity; |
733fd013 KH |
2691 | Lisp_Object *lface; |
2692 | Lisp_Object spec; | |
c2f5bfd6 | 2693 | { |
9331887d | 2694 | int size; |
c2f5bfd6 | 2695 | |
733fd013 KH |
2696 | if (FONT_SPEC_P (spec) && INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2697 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2698 | else | |
2699 | { | |
2700 | double pt = XINT (lface[LFACE_HEIGHT_INDEX]); | |
2701 | ||
2702 | pt /= 10; | |
2703 | size = POINT_TO_PIXEL (pt, f->resy); | |
2704 | } | |
c2f5bfd6 KH |
2705 | return font_open_entity (f, entity, size); |
2706 | } | |
2707 | ||
2708 | void | |
2709 | font_load_for_face (f, face) | |
2710 | FRAME_PTR f; | |
2711 | struct face *face; | |
2712 | { | |
ef18374f | 2713 | Lisp_Object font_object = face->lface[LFACE_FONT_INDEX]; |
c2f5bfd6 | 2714 | |
ef18374f | 2715 | if (NILP (font_object)) |
c2f5bfd6 | 2716 | { |
ef18374f | 2717 | Lisp_Object entity = font_find_for_lface (f, face->lface, Qnil); |
c2f5bfd6 | 2718 | |
ef18374f | 2719 | if (! NILP (entity)) |
733fd013 | 2720 | font_object = font_open_for_lface (f, entity, face->lface, Qnil); |
ef18374f | 2721 | } |
c2f5bfd6 | 2722 | |
ef18374f KH |
2723 | if (! NILP (font_object)) |
2724 | { | |
2725 | struct font *font = XSAVE_VALUE (font_object)->pointer; | |
2726 | ||
2727 | face->font = font->font.font; | |
2728 | face->font_info = (struct font_info *) font; | |
2729 | face->font_info_id = 0; | |
2730 | face->font_name = font->font.full_name; | |
2731 | } | |
2732 | else | |
2733 | { | |
2734 | face->font = NULL; | |
2735 | face->font_info = NULL; | |
2736 | face->font_info_id = -1; | |
2737 | face->font_name = NULL; | |
2738 | add_to_log ("Unable to load font for a face%s", null_string, Qnil); | |
c2f5bfd6 | 2739 | } |
c2f5bfd6 KH |
2740 | } |
2741 | ||
2742 | void | |
2743 | font_prepare_for_face (f, face) | |
2744 | FRAME_PTR f; | |
2745 | struct face *face; | |
2746 | { | |
2747 | struct font *font = (struct font *) face->font_info; | |
2748 | ||
2749 | if (font->driver->prepare_face) | |
2750 | font->driver->prepare_face (f, face); | |
2751 | } | |
2752 | ||
2753 | void | |
2754 | font_done_for_face (f, face) | |
2755 | FRAME_PTR f; | |
2756 | struct face *face; | |
2757 | { | |
2758 | struct font *font = (struct font *) face->font_info; | |
2759 | ||
2760 | if (font->driver->done_face) | |
2761 | font->driver->done_face (f, face); | |
2762 | face->extra = NULL; | |
2763 | } | |
2764 | ||
2765 | Lisp_Object | |
2766 | font_open_by_name (f, name) | |
2767 | FRAME_PTR f; | |
2768 | char *name; | |
2769 | { | |
ef18374f | 2770 | Lisp_Object args[2]; |
e950d6f1 | 2771 | Lisp_Object spec, prefer, size, entity, entity_list; |
c2f5bfd6 | 2772 | Lisp_Object frame; |
a9262bb8 | 2773 | int i; |
ef18374f | 2774 | int pixel_size; |
c2f5bfd6 KH |
2775 | |
2776 | XSETFRAME (frame, f); | |
a9262bb8 | 2777 | |
ef18374f KH |
2778 | args[0] = QCname; |
2779 | args[1] = make_unibyte_string (name, strlen (name)); | |
2780 | spec = Ffont_spec (2, args); | |
a9262bb8 KH |
2781 | prefer = scratch_font_prefer; |
2782 | for (i = FONT_WEIGHT_INDEX; i < FONT_SIZE_INDEX; i++) | |
2783 | if (NILP (AREF (spec, i))) | |
2784 | ASET (prefer, i, make_number (100)); | |
2785 | size = AREF (spec, FONT_SIZE_INDEX); | |
2786 | if (NILP (size)) | |
2787 | pixel_size = 0; | |
2788 | else if (INTEGERP (size)) | |
2789 | pixel_size = XINT (size); | |
2790 | else /* FLOATP (size) */ | |
ef18374f | 2791 | { |
9331887d | 2792 | double pt = XFLOAT_DATA (size); |
a9262bb8 KH |
2793 | |
2794 | pixel_size = POINT_TO_PIXEL (pt, f->resy); | |
2795 | size = make_number (pixel_size); | |
2796 | ASET (spec, FONT_SIZE_INDEX, size); | |
ef18374f | 2797 | } |
a9262bb8 | 2798 | if (pixel_size == 0) |
ef18374f | 2799 | { |
9331887d | 2800 | pixel_size = POINT_TO_PIXEL (12.0, f->resy); |
a9262bb8 | 2801 | size = make_number (pixel_size); |
ef18374f | 2802 | } |
a9262bb8 | 2803 | ASET (prefer, FONT_SIZE_INDEX, size); |
9331887d KH |
2804 | if (NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
2805 | ASET (spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
a9262bb8 | 2806 | |
e950d6f1 KH |
2807 | entity_list = Flist_fonts (spec, frame, make_number (1), prefer); |
2808 | if (NILP (entity_list)) | |
2809 | entity = font_matching_entity (frame, spec); | |
2810 | else | |
2811 | entity = XCAR (entity_list); | |
2812 | return (NILP (entity) | |
a9262bb8 | 2813 | ? Qnil |
e950d6f1 | 2814 | : font_open_entity (f, entity, pixel_size)); |
c2f5bfd6 KH |
2815 | } |
2816 | ||
2817 | ||
2818 | /* Register font-driver DRIVER. This function is used in two ways. | |
2819 | ||
417a1b10 KH |
2820 | The first is with frame F non-NULL. In this case, make DRIVER |
2821 | available (but not yet activated) on F. All frame creaters | |
2822 | (e.g. Fx_create_frame) must call this function at least once with | |
2823 | an available font-driver. | |
c2f5bfd6 KH |
2824 | |
2825 | The second is with frame F NULL. In this case, DRIVER is globally | |
2826 | registered in the variable `font_driver_list'. All font-driver | |
2827 | implementations must call this function in its syms_of_XXXX | |
2828 | (e.g. syms_of_xfont). */ | |
2829 | ||
2830 | void | |
2831 | register_font_driver (driver, f) | |
2832 | struct font_driver *driver; | |
2833 | FRAME_PTR f; | |
2834 | { | |
2835 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
2836 | struct font_driver_list *prev, *list; | |
2837 | ||
2838 | if (f && ! driver->draw) | |
2839 | error ("Unsable font driver for a frame: %s", | |
2840 | SDATA (SYMBOL_NAME (driver->type))); | |
2841 | ||
2842 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 2843 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
2844 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
2845 | ||
2846 | list = malloc (sizeof (struct font_driver_list)); | |
417a1b10 | 2847 | list->on = 0; |
c2f5bfd6 KH |
2848 | list->driver = driver; |
2849 | list->next = NULL; | |
2850 | if (prev) | |
2851 | prev->next = list; | |
2852 | else if (f) | |
2853 | f->font_driver_list = list; | |
2854 | else | |
2855 | font_driver_list = list; | |
2856 | num_font_drivers++; | |
2857 | } | |
2858 | ||
2859 | /* Free font-driver list on frame F. It doesn't free font-drivers | |
2860 | themselves. */ | |
2861 | ||
2862 | void | |
2863 | free_font_driver_list (f) | |
2864 | FRAME_PTR f; | |
2865 | { | |
2866 | while (f->font_driver_list) | |
2867 | { | |
2868 | struct font_driver_list *next = f->font_driver_list->next; | |
2869 | ||
2870 | free (f->font_driver_list); | |
2871 | f->font_driver_list = next; | |
2872 | } | |
2873 | } | |
2874 | ||
e950d6f1 KH |
2875 | /* Make the frame F use font backends listed in NEW_BACKENDS (list of |
2876 | symbols). If NEW_BACKENDS is nil, make F use all available font | |
2877 | drivers. If no backend is available, dont't alter | |
2878 | f->font_driver_list. | |
417a1b10 | 2879 | |
e950d6f1 KH |
2880 | A caller must free all realized faces and clear all font caches if |
2881 | any in advance. The return value is a list of font backends | |
2882 | actually made used for on F. */ | |
2883 | ||
2884 | Lisp_Object | |
2885 | font_update_drivers (f, new_drivers) | |
417a1b10 KH |
2886 | FRAME_PTR f; |
2887 | Lisp_Object new_drivers; | |
417a1b10 KH |
2888 | { |
2889 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
2890 | struct font_driver_list *list; |
2891 | ||
e950d6f1 | 2892 | /* At first check which font backends are available. */ |
417a1b10 | 2893 | for (list = f->font_driver_list; list; list = list->next) |
e950d6f1 KH |
2894 | if (NILP (new_drivers) |
2895 | || ! NILP (Fmemq (list->driver->type, new_drivers))) | |
2896 | { | |
2897 | list->on = 2; | |
2898 | active_drivers = nconc2 (active_drivers, | |
2899 | Fcons (list->driver->type, Qnil)); | |
2900 | } | |
2901 | /* If at least one backend is available, update all list->on. */ | |
2902 | if (! NILP (active_drivers)) | |
2903 | for (list = f->font_driver_list; list; list = list->next) | |
2904 | list->on = (list->on == 2); | |
417a1b10 | 2905 | |
e950d6f1 | 2906 | return active_drivers; |
417a1b10 KH |
2907 | } |
2908 | ||
2909 | ||
10d16101 KH |
2910 | Lisp_Object |
2911 | font_at (c, pos, face, w, object) | |
2912 | int c; | |
2913 | EMACS_INT pos; | |
2914 | struct face *face; | |
2915 | struct window *w; | |
2916 | Lisp_Object object; | |
2917 | { | |
2918 | FRAME_PTR f; | |
2919 | int face_id; | |
2920 | int dummy; | |
2921 | ||
2922 | f = XFRAME (w->frame); | |
1385a806 KH |
2923 | if (! FRAME_WINDOW_P (f)) |
2924 | return Qnil; | |
10d16101 KH |
2925 | if (! face) |
2926 | { | |
2927 | if (STRINGP (object)) | |
2928 | face_id = face_at_string_position (w, object, pos, 0, -1, -1, &dummy, | |
2929 | DEFAULT_FACE_ID, 0); | |
2930 | else | |
2931 | face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, | |
2932 | pos + 100, 0); | |
2933 | face = FACE_FROM_ID (f, face_id); | |
2934 | } | |
2935 | face_id = FACE_FOR_CHAR (f, face, c, pos, object); | |
2936 | face = FACE_FROM_ID (f, face_id); | |
2937 | if (! face->font_info) | |
2938 | return Qnil; | |
2939 | return font_lispy_object ((struct font *) face->font_info); | |
2940 | } | |
2941 | ||
c2f5bfd6 KH |
2942 | \f |
2943 | /* Lisp API */ | |
2944 | ||
2945 | DEFUN ("fontp", Ffontp, Sfontp, 1, 1, 0, | |
b9cb77b2 | 2946 | doc: /* Return t if OBJECT is a font-spec or font-entity. */) |
c2f5bfd6 KH |
2947 | (object) |
2948 | Lisp_Object object; | |
2949 | { | |
2950 | return (FONTP (object) ? Qt : Qnil); | |
2951 | } | |
2952 | ||
2953 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, | |
2954 | doc: /* Return a newly created font-spec with specified arguments as properties. | |
2955 | usage: (font-spec &rest properties) */) | |
2956 | (nargs, args) | |
2957 | int nargs; | |
2958 | Lisp_Object *args; | |
2959 | { | |
2960 | Lisp_Object spec = Fmake_vector (make_number (FONT_SPEC_MAX), Qnil); | |
c2f5bfd6 KH |
2961 | int i; |
2962 | ||
2963 | for (i = 0; i < nargs; i += 2) | |
2964 | { | |
2965 | enum font_property_index prop; | |
2966 | Lisp_Object key = args[i], val = args[i + 1]; | |
2967 | ||
ec6fe57c | 2968 | prop = get_font_prop_index (key, 0); |
c2f5bfd6 | 2969 | if (prop < FONT_EXTRA_INDEX) |
ec6fe57c | 2970 | ASET (spec, prop, val); |
c2f5bfd6 | 2971 | else |
4485a28e KH |
2972 | { |
2973 | if (EQ (key, QCname)) | |
ec6fe57c KH |
2974 | { |
2975 | CHECK_STRING (val); | |
2976 | font_parse_name ((char *) SDATA (val), spec); | |
2977 | } | |
e950d6f1 | 2978 | font_put_extra (spec, key, val); |
4485a28e | 2979 | } |
e950d6f1 | 2980 | } |
ec6fe57c | 2981 | CHECK_VALIDATE_FONT_SPEC (spec); |
c2f5bfd6 KH |
2982 | return spec; |
2983 | } | |
2984 | ||
2985 | ||
2986 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, | |
2987 | doc: /* Return the value of FONT's PROP property. | |
e950d6f1 | 2988 | FONT is a font-spec, a font-entity, or a font-object. */) |
c2f5bfd6 KH |
2989 | (font, prop) |
2990 | Lisp_Object font, prop; | |
2991 | { | |
2992 | enum font_property_index idx; | |
2993 | ||
10d16101 | 2994 | if (FONT_OBJECT_P (font)) |
e80e09b4 KH |
2995 | { |
2996 | struct font *fontp = XSAVE_VALUE (font)->pointer; | |
2997 | ||
2998 | if (EQ (prop, QCotf)) | |
e950d6f1 | 2999 | { |
771bd479 JR |
3000 | if (fontp->driver->otf_capability) |
3001 | return fontp->driver->otf_capability (fontp); | |
3002 | else | |
3003 | return Qnil; | |
e950d6f1 | 3004 | } |
e80e09b4 KH |
3005 | font = fontp->entity; |
3006 | } | |
10d16101 KH |
3007 | else |
3008 | CHECK_FONT (font); | |
ec6fe57c | 3009 | idx = get_font_prop_index (prop, 0); |
c2f5bfd6 KH |
3010 | if (idx < FONT_EXTRA_INDEX) |
3011 | return AREF (font, idx); | |
3012 | if (FONT_ENTITY_P (font)) | |
3013 | return Qnil; | |
3014 | return Fcdr (Fassoc (AREF (font, FONT_EXTRA_INDEX), prop)); | |
3015 | } | |
3016 | ||
3017 | ||
3018 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, | |
3019 | doc: /* Set one property of FONT-SPEC: give property PROP value VALUE. */) | |
3020 | (font_spec, prop, val) | |
3021 | Lisp_Object font_spec, prop, val; | |
3022 | { | |
3023 | enum font_property_index idx; | |
3024 | Lisp_Object extra, slot; | |
3025 | ||
3026 | CHECK_FONT_SPEC (font_spec); | |
ec6fe57c | 3027 | idx = get_font_prop_index (prop, 0); |
c2f5bfd6 KH |
3028 | if (idx < FONT_EXTRA_INDEX) |
3029 | return ASET (font_spec, idx, val); | |
3030 | extra = AREF (font_spec, FONT_EXTRA_INDEX); | |
3031 | slot = Fassoc (extra, prop); | |
3032 | if (NILP (slot)) | |
3033 | extra = Fcons (Fcons (prop, val), extra); | |
3034 | else | |
3035 | Fsetcdr (slot, val); | |
3036 | return val; | |
3037 | } | |
3038 | ||
3039 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, | |
3040 | doc: /* List available fonts matching FONT-SPEC on the current frame. | |
3041 | Optional 2nd argument FRAME specifies the target frame. | |
3042 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
ec6fe57c KH |
3043 | Optional 4th argument PREFER, if non-nil, is a font-spec |
3044 | to which closeness fonts are sorted. */) | |
c2f5bfd6 KH |
3045 | (font_spec, frame, num, prefer) |
3046 | Lisp_Object font_spec, frame, num, prefer; | |
3047 | { | |
3048 | Lisp_Object vec, list, tail; | |
3049 | int n = 0, i, len; | |
3050 | ||
3051 | if (NILP (frame)) | |
3052 | frame = selected_frame; | |
3053 | CHECK_LIVE_FRAME (frame); | |
3054 | CHECK_VALIDATE_FONT_SPEC (font_spec); | |
3055 | if (! NILP (num)) | |
3056 | { | |
3057 | CHECK_NUMBER (num); | |
3058 | n = XINT (num); | |
3059 | if (n <= 0) | |
3060 | return Qnil; | |
3061 | } | |
3062 | if (! NILP (prefer)) | |
3063 | CHECK_FONT (prefer); | |
3064 | ||
3065 | vec = font_list_entities (frame, font_spec); | |
3066 | len = ASIZE (vec); | |
3067 | if (len == 0) | |
3068 | return Qnil; | |
3069 | if (len == 1) | |
3070 | return Fcons (AREF (vec, 0), Qnil); | |
3071 | ||
3072 | if (! NILP (prefer)) | |
3073 | vec = font_sort_entites (vec, prefer, frame, font_spec); | |
3074 | ||
3075 | list = tail = Fcons (AREF (vec, 0), Qnil); | |
3076 | if (n == 0 || n > len) | |
3077 | n = len; | |
3078 | for (i = 1; i < n; i++) | |
3079 | { | |
3080 | Lisp_Object val = Fcons (AREF (vec, i), Qnil); | |
3081 | ||
3082 | XSETCDR (tail, val); | |
3083 | tail = val; | |
3084 | } | |
3085 | return list; | |
3086 | } | |
3087 | ||
3088 | DEFUN ("list-families", Flist_families, Slist_families, 0, 1, 0, | |
3089 | doc: /* List available font families on the current frame. | |
3090 | Optional 2nd argument FRAME specifies the target frame. */) | |
3091 | (frame) | |
3092 | Lisp_Object frame; | |
3093 | { | |
3094 | FRAME_PTR f; | |
3095 | struct font_driver_list *driver_list; | |
3096 | Lisp_Object list; | |
3097 | ||
3098 | if (NILP (frame)) | |
3099 | frame = selected_frame; | |
3100 | CHECK_LIVE_FRAME (frame); | |
3101 | f = XFRAME (frame); | |
3102 | list = Qnil; | |
3103 | for (driver_list = f->font_driver_list; driver_list; | |
3104 | driver_list = driver_list->next) | |
3105 | if (driver_list->driver->list_family) | |
3106 | { | |
3107 | Lisp_Object val = driver_list->driver->list_family (frame); | |
3108 | ||
3109 | if (NILP (list)) | |
3110 | list = val; | |
3111 | else | |
3112 | { | |
3113 | Lisp_Object tail = list; | |
3114 | ||
3115 | for (; CONSP (val); val = XCDR (val)) | |
3116 | if (NILP (Fmemq (XCAR (val), tail))) | |
3117 | list = Fcons (XCAR (val), list); | |
3118 | } | |
3119 | } | |
3120 | return list; | |
3121 | } | |
3122 | ||
3123 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
3124 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
3125 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
3126 | (font_spec, frame) | |
3127 | Lisp_Object font_spec, frame; | |
3128 | { | |
3129 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
3130 | ||
3131 | if (CONSP (val)) | |
3132 | val = XCAR (val); | |
3133 | return val; | |
3134 | } | |
3135 | ||
3136 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 1, 0, | |
3137 | doc: /* Return XLFD name of FONT. | |
3138 | FONT is a font-spec, font-entity, or font-object. | |
3139 | If the name is too long for XLFD (maximum 255 chars), return nil. */) | |
3140 | (font) | |
3141 | Lisp_Object font; | |
3142 | { | |
3143 | char name[256]; | |
3144 | int pixel_size = 0; | |
3145 | ||
3146 | if (FONT_SPEC_P (font)) | |
3147 | CHECK_VALIDATE_FONT_SPEC (font); | |
3148 | else if (FONT_ENTITY_P (font)) | |
3149 | CHECK_FONT (font); | |
3150 | else | |
3151 | { | |
3152 | struct font *fontp; | |
3153 | ||
3154 | CHECK_FONT_GET_OBJECT (font, fontp); | |
3155 | font = fontp->entity; | |
3156 | pixel_size = fontp->pixel_size; | |
3157 | } | |
3158 | ||
3159 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) | |
3160 | return Qnil; | |
3161 | return build_string (name); | |
3162 | } | |
3163 | ||
3164 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
3165 | doc: /* Clear font cache. */) | |
3166 | () | |
3167 | { | |
3168 | Lisp_Object list, frame; | |
3169 | ||
3170 | FOR_EACH_FRAME (list, frame) | |
3171 | { | |
3172 | FRAME_PTR f = XFRAME (frame); | |
3173 | struct font_driver_list *driver_list = f->font_driver_list; | |
3174 | ||
3175 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
3176 | if (driver_list->on) |
3177 | { | |
3178 | Lisp_Object cache = driver_list->driver->get_cache (frame); | |
3179 | Lisp_Object tail, elt; | |
c2f5bfd6 | 3180 | |
417a1b10 KH |
3181 | for (tail = XCDR (cache); CONSP (tail); tail = XCDR (tail)) |
3182 | { | |
3183 | elt = XCAR (tail); | |
3184 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
3185 | { | |
3186 | Lisp_Object vec = XCDR (elt); | |
3187 | int i; | |
3188 | ||
3189 | for (i = 0; i < ASIZE (vec); i++) | |
3190 | { | |
3191 | Lisp_Object entity = AREF (vec, i); | |
3192 | ||
3193 | if (EQ (driver_list->driver->type, | |
3194 | AREF (entity, FONT_TYPE_INDEX))) | |
3195 | { | |
3196 | Lisp_Object objlist | |
3197 | = AREF (entity, FONT_OBJLIST_INDEX); | |
3198 | ||
3199 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
3200 | { | |
3201 | Lisp_Object val = XCAR (objlist); | |
3202 | struct Lisp_Save_Value *p = XSAVE_VALUE (val); | |
3203 | struct font *font = p->pointer; | |
3204 | ||
3205 | xassert (font && (driver_list->driver | |
3206 | == font->driver)); | |
3207 | driver_list->driver->close (f, font); | |
3208 | p->pointer = NULL; | |
3209 | p->integer = 0; | |
3210 | } | |
3211 | if (driver_list->driver->free_entity) | |
3212 | driver_list->driver->free_entity (entity); | |
3213 | } | |
3214 | } | |
3215 | } | |
3216 | } | |
3217 | XSETCDR (cache, Qnil); | |
3218 | } | |
c2f5bfd6 KH |
3219 | } |
3220 | ||
3221 | return Qnil; | |
3222 | } | |
3223 | ||
3224 | DEFUN ("internal-set-font-style-table", Finternal_set_font_style_table, | |
3225 | Sinternal_set_font_style_table, 2, 2, 0, | |
3226 | doc: /* Set font style table for PROP to TABLE. | |
3227 | PROP must be `:weight', `:slant', or `:width'. | |
3228 | TABLE must be an alist of symbols vs the corresponding numeric values | |
3229 | sorted by numeric values. */) | |
3230 | (prop, table) | |
3231 | Lisp_Object prop, table; | |
3232 | { | |
3233 | int table_index; | |
3234 | int numeric; | |
3235 | Lisp_Object tail, val; | |
3236 | ||
3237 | CHECK_SYMBOL (prop); | |
3238 | table_index = (EQ (prop, QCweight) ? 0 | |
3239 | : EQ (prop, QCslant) ? 1 | |
3240 | : EQ (prop, QCwidth) ? 2 | |
3241 | : 3); | |
3242 | if (table_index >= ASIZE (font_style_table)) | |
3243 | error ("Invalid font style property: %s", SDATA (SYMBOL_NAME (prop))); | |
3244 | table = Fcopy_sequence (table); | |
3245 | numeric = -1; | |
3246 | for (tail = table; ! NILP (tail); tail = Fcdr (tail)) | |
3247 | { | |
3248 | prop = Fcar (Fcar (tail)); | |
3249 | val = Fcdr (Fcar (tail)); | |
3250 | CHECK_SYMBOL (prop); | |
3251 | CHECK_NATNUM (val); | |
3252 | if (numeric > XINT (val)) | |
3253 | error ("Numeric values not sorted for %s", SDATA (SYMBOL_NAME (prop))); | |
3254 | numeric = XINT (val); | |
3255 | XSETCAR (tail, Fcons (prop, val)); | |
3256 | } | |
3257 | ASET (font_style_table, table_index, table); | |
3258 | return Qnil; | |
3259 | } | |
3260 | ||
3261 | DEFUN ("font-make-gstring", Ffont_make_gstring, Sfont_make_gstring, 2, 2, 0, | |
e80e09b4 KH |
3262 | doc: /* Return a newly created g-string for FONT-OBJECT with NUM glyphs. |
3263 | FONT-OBJECT may be nil if it is not yet known. | |
3264 | ||
3265 | G-string is sequence of glyphs of a specific font, | |
3266 | and is a vector of this form: | |
3267 | [ HEADER GLYPH ... ] | |
3268 | HEADER is a vector of this form: | |
3269 | [FONT-OBJECT LBEARING RBEARING WIDTH ASCENT DESCENT] | |
3270 | where | |
733fd013 | 3271 | FONT-OBJECT is a font-object for all glyphs in the g-string, |
e80e09b4 KH |
3272 | LBEARING thry DESCENT is the metrics (in pixels) of the whole G-string. |
3273 | GLYPH is a vector of this form: | |
3274 | [ FROM-IDX TO-IDX C CODE WIDTH [ [X-OFF Y-OFF WADJUST] | nil] ] | |
3275 | where | |
3276 | FROM-IDX and TO-IDX are used internally and should not be touched. | |
3277 | C is the character of the glyph. | |
3278 | CODE is the glyph-code of C in FONT-OBJECT. | |
3279 | X-OFF and Y-OFF are offests to the base position for the glyph. | |
3280 | WIDTH is the normal width of the glyph. | |
3281 | WADJUST is the adjustment to the normal width of the glyph. */) | |
c2f5bfd6 KH |
3282 | (font_object, num) |
3283 | Lisp_Object font_object, num; | |
3284 | { | |
3285 | Lisp_Object gstring, g; | |
3286 | int len; | |
3287 | int i; | |
3288 | ||
3289 | if (! NILP (font_object)) | |
3290 | CHECK_FONT_OBJECT (font_object); | |
3291 | CHECK_NATNUM (num); | |
3292 | ||
3293 | len = XINT (num) + 1; | |
3294 | gstring = Fmake_vector (make_number (len), Qnil); | |
3295 | g = Fmake_vector (make_number (6), Qnil); | |
3296 | ASET (g, 0, font_object); | |
3297 | ASET (gstring, 0, g); | |
3298 | for (i = 1; i < len; i++) | |
10d16101 | 3299 | ASET (gstring, i, Fmake_vector (make_number (8), Qnil)); |
c2f5bfd6 KH |
3300 | return gstring; |
3301 | } | |
3302 | ||
3303 | DEFUN ("font-fill-gstring", Ffont_fill_gstring, Sfont_fill_gstring, 4, 5, 0, | |
3304 | doc: /* Fillin glyph-string GSTRING by characters for FONT-OBJECT. | |
3305 | START and END specifies the region to extract characters. | |
3306 | If optional 3rd argument OBJECT is non-nil, it is a buffer or a string from | |
3307 | where to extract characters. | |
3308 | FONT-OBJECT may be nil if GSTRING already already contains one. */) | |
3309 | (gstring, font_object, start, end, object) | |
3310 | Lisp_Object gstring, font_object, start, end, object; | |
3311 | { | |
3312 | int len, i, c; | |
3313 | unsigned code; | |
3314 | struct font *font; | |
3315 | ||
3316 | CHECK_VECTOR (gstring); | |
3317 | if (NILP (font_object)) | |
10d16101 | 3318 | font_object = LGSTRING_FONT (gstring); |
c2f5bfd6 KH |
3319 | CHECK_FONT_GET_OBJECT (font_object, font); |
3320 | ||
3321 | if (STRINGP (object)) | |
3322 | { | |
3323 | const unsigned char *p; | |
3324 | ||
3325 | CHECK_NATNUM (start); | |
3326 | CHECK_NATNUM (end); | |
3327 | if (XINT (start) > XINT (end) | |
3328 | || XINT (end) > ASIZE (object) | |
10d16101 | 3329 | || XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
c2f5bfd6 KH |
3330 | args_out_of_range (start, end); |
3331 | ||
3332 | len = XINT (end) - XINT (start); | |
3333 | p = SDATA (object) + string_char_to_byte (object, XINT (start)); | |
3334 | for (i = 0; i < len; i++) | |
3335 | { | |
3336 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3337 | ||
3338 | c = STRING_CHAR_ADVANCE (p); | |
3339 | code = font->driver->encode_char (font, c); | |
3340 | if (code > MOST_POSITIVE_FIXNUM) | |
3341 | error ("Glyph code 0x%X is too large", code); | |
10d16101 KH |
3342 | LGLYPH_SET_FROM (g, make_number (i)); |
3343 | LGLYPH_SET_TO (g, make_number (i + 1)); | |
c2f5bfd6 KH |
3344 | LGLYPH_SET_CHAR (g, make_number (c)); |
3345 | LGLYPH_SET_CODE (g, make_number (code)); | |
3346 | } | |
3347 | } | |
3348 | else | |
3349 | { | |
3350 | int pos, pos_byte; | |
3351 | ||
3352 | if (! NILP (object)) | |
3353 | Fset_buffer (object); | |
3354 | validate_region (&start, &end); | |
10d16101 | 3355 | if (XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
c2f5bfd6 KH |
3356 | args_out_of_range (start, end); |
3357 | len = XINT (end) - XINT (start); | |
3358 | pos = XINT (start); | |
3359 | pos_byte = CHAR_TO_BYTE (pos); | |
3360 | for (i = 0; i < len; i++) | |
3361 | { | |
3362 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3363 | ||
3364 | FETCH_CHAR_ADVANCE (c, pos, pos_byte); | |
3365 | code = font->driver->encode_char (font, c); | |
3366 | if (code > MOST_POSITIVE_FIXNUM) | |
3367 | error ("Glyph code 0x%X is too large", code); | |
10d16101 KH |
3368 | LGLYPH_SET_FROM (g, make_number (i)); |
3369 | LGLYPH_SET_TO (g, make_number (i + 1)); | |
c2f5bfd6 KH |
3370 | LGLYPH_SET_CHAR (g, make_number (c)); |
3371 | LGLYPH_SET_CODE (g, make_number (code)); | |
3372 | } | |
3373 | } | |
10d16101 KH |
3374 | for (i = LGSTRING_LENGTH (gstring) - 1; i >= len; i--) |
3375 | { | |
3376 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3377 | ||
3378 | LGLYPH_SET_FROM (g, Qnil); | |
3379 | } | |
c2f5bfd6 KH |
3380 | return Qnil; |
3381 | } | |
3382 | ||
733fd013 KH |
3383 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
3384 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. | |
3385 | OTF-SPEC specifies which featuress to apply in this format: | |
3386 | (SCRIPT LANGSYS GSUB GPOS) | |
e80e09b4 KH |
3387 | where |
3388 | SCRIPT is a symbol specifying a script tag of OpenType, | |
3389 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 3390 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
3391 | |
3392 | If LANGYS is nil, the default langsys is selected. | |
3393 | ||
733fd013 KH |
3394 | The features are applied in the order appeared in the list. The |
3395 | symbol `*' means to apply all available features not appeared in this | |
3396 | list, and the remaining features are ignored. For instance, (vatu | |
3397 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
3398 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
3399 | |
3400 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 3401 | the glyph-string GSTRING-IN. |
e80e09b4 KH |
3402 | |
3403 | If some of a feature is actually applicable, the resulting glyphs are | |
3404 | produced in the glyph-string GSTRING-OUT from the index INDEX. In | |
3405 | this case, the value is the number of produced glyphs. | |
3406 | ||
3407 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
3408 | the value is 0. | |
3409 | ||
3410 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs is | |
3411 | produced in GSTRING-OUT, and the value is nil. | |
3412 | ||
3413 | See the documentation of `font-make-gstring' for the format of | |
3414 | glyph-string. */) | |
733fd013 KH |
3415 | (otf_features, gstring_in, from, to, gstring_out, index) |
3416 | Lisp_Object otf_features, gstring_in, from, to, gstring_out, index; | |
e80e09b4 KH |
3417 | { |
3418 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
3419 | Lisp_Object val; |
3420 | struct font *font; | |
e80e09b4 KH |
3421 | int len, num; |
3422 | ||
733fd013 | 3423 | check_otf_features (otf_features); |
e80e09b4 | 3424 | CHECK_FONT_GET_OBJECT (font_object, font); |
733fd013 | 3425 | if (! font->driver->otf_drive) |
e80e09b4 KH |
3426 | error ("Font backend %s can't drive OpenType GSUB table", |
3427 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
3428 | CHECK_CONS (otf_features); |
3429 | CHECK_SYMBOL (XCAR (otf_features)); | |
3430 | val = XCDR (otf_features); | |
3431 | CHECK_SYMBOL (XCAR (val)); | |
3432 | val = XCDR (otf_features); | |
3433 | if (! NILP (val)) | |
3434 | CHECK_CONS (val); | |
e80e09b4 KH |
3435 | len = check_gstring (gstring_in); |
3436 | CHECK_VECTOR (gstring_out); | |
3437 | CHECK_NATNUM (from); | |
3438 | CHECK_NATNUM (to); | |
3439 | CHECK_NATNUM (index); | |
3440 | ||
3441 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
3442 | args_out_of_range_3 (from, to, make_number (len)); | |
3443 | if (XINT (index) >= ASIZE (gstring_out)) | |
3444 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
3445 | num = font->driver->otf_drive (font, otf_features, |
3446 | gstring_in, XINT (from), XINT (to), | |
3447 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
3448 | if (num < 0) |
3449 | return Qnil; | |
3450 | return make_number (num); | |
3451 | } | |
3452 | ||
e80e09b4 KH |
3453 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
3454 | 3, 3, 0, | |
3455 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
3456 | FEATURE-SPEC specifies which features of the font FONT-OBJECT to apply | |
3457 | in this format: | |
3458 | (SCRIPT LANGSYS FEATURE ...) | |
3459 | See the documentation of `font-otf-gsub' for more detail. | |
3460 | ||
3461 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
3462 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
3463 | character code corresponding to the glyph or nil if there's no | |
3464 | corresponding character. */) | |
733fd013 KH |
3465 | (font_object, character, otf_features) |
3466 | Lisp_Object font_object, character, otf_features; | |
e80e09b4 KH |
3467 | { |
3468 | struct font *font; | |
3469 | Lisp_Object gstring_in, gstring_out, g; | |
3470 | Lisp_Object alternates; | |
3471 | int i, num; | |
3472 | ||
3473 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 3474 | if (! font->driver->otf_drive) |
e950d6f1 KH |
3475 | error ("Font backend %s can't drive OpenType GSUB table", |
3476 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 3477 | CHECK_CHARACTER (character); |
733fd013 | 3478 | CHECK_CONS (otf_features); |
e80e09b4 KH |
3479 | |
3480 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
3481 | g = LGSTRING_GLYPH (gstring_in, 0); | |
3482 | LGLYPH_SET_CHAR (g, character); | |
3483 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); | |
733fd013 KH |
3484 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
3485 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
3486 | gstring_out = Ffont_make_gstring (font_object, |
3487 | make_number (ASIZE (gstring_out) * 2)); | |
3488 | alternates = Qnil; | |
3489 | for (i = 0; i < num; i++) | |
3490 | { | |
3491 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
3492 | int c = XINT (LGLYPH_CHAR (g)); | |
3493 | unsigned code = XUINT (LGLYPH_CODE (g)); | |
e80e09b4 KH |
3494 | |
3495 | alternates = Fcons (Fcons (make_number (code), | |
3496 | c > 0 ? make_number (c) : Qnil), | |
3497 | alternates); | |
3498 | } | |
3499 | return Fnreverse (alternates); | |
3500 | } | |
3501 | ||
c2f5bfd6 KH |
3502 | |
3503 | #ifdef FONT_DEBUG | |
3504 | ||
3505 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
3506 | doc: /* Open FONT-ENTITY. */) | |
3507 | (font_entity, size, frame) | |
3508 | Lisp_Object font_entity; | |
3509 | Lisp_Object size; | |
3510 | Lisp_Object frame; | |
3511 | { | |
3512 | int isize; | |
3513 | ||
3514 | CHECK_FONT_ENTITY (font_entity); | |
3515 | if (NILP (size)) | |
3516 | size = AREF (font_entity, FONT_SIZE_INDEX); | |
3517 | CHECK_NUMBER (size); | |
3518 | if (NILP (frame)) | |
3519 | frame = selected_frame; | |
3520 | CHECK_LIVE_FRAME (frame); | |
3521 | ||
3522 | isize = XINT (size); | |
3523 | if (isize < 0) | |
3524 | isize = POINT_TO_PIXEL (- isize, XFRAME (frame)->resy); | |
3525 | ||
3526 | return font_open_entity (XFRAME (frame), font_entity, isize); | |
3527 | } | |
3528 | ||
3529 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
3530 | doc: /* Close FONT-OBJECT. */) | |
3531 | (font_object, frame) | |
3532 | Lisp_Object font_object, frame; | |
3533 | { | |
3534 | CHECK_FONT_OBJECT (font_object); | |
3535 | if (NILP (frame)) | |
3536 | frame = selected_frame; | |
3537 | CHECK_LIVE_FRAME (frame); | |
3538 | font_close_object (XFRAME (frame), font_object); | |
3539 | return Qnil; | |
3540 | } | |
3541 | ||
3542 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
3543 | doc: /* Return information about FONT-OBJECT. |
3544 | The value is a vector: | |
3545 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 3546 | CAPABILITY ] |
e80e09b4 KH |
3547 | |
3548 | NAME is a string of the font name (or nil if the font backend doesn't | |
3549 | provide a name). | |
3550 | ||
3551 | FILENAME is a string of the font file (or nil if the font backend | |
3552 | doesn't provide a file name). | |
3553 | ||
3554 | PIXEL-SIZE is a pixel size by which the font is opened. | |
3555 | ||
3556 | SIZE is a maximum advance width of the font in pixel. | |
3557 | ||
3558 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
3559 | pixel. | |
3560 | ||
e0708580 KH |
3561 | CAPABILITY is a list whose first element is a symbol representing the |
3562 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
3563 | remaining elements describes a detail of the font capability. | |
3564 | ||
3565 | If the font is OpenType font, the form of the list is | |
3566 | \(opentype GSUB GPOS) | |
3567 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
3568 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
3569 | lists of the format: | |
3570 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3571 | ||
3572 | If the font is not OpenType font, currently the length of the form is | |
3573 | one. | |
e80e09b4 KH |
3574 | |
3575 | SCRIPT is a symbol representing OpenType script tag. | |
3576 | ||
3577 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
3578 | representing the default langsys. | |
3579 | ||
3580 | FEATURE is a symbol representing OpenType feature tag. | |
3581 | ||
3582 | If the font is not OpenType font, OTF-CAPABILITY is nil. */) | |
c2f5bfd6 KH |
3583 | (font_object) |
3584 | Lisp_Object font_object; | |
3585 | { | |
3586 | struct font *font; | |
3587 | Lisp_Object val; | |
3588 | ||
3589 | CHECK_FONT_GET_OBJECT (font_object, font); | |
3590 | ||
3591 | val = Fmake_vector (make_number (9), Qnil); | |
e80e09b4 KH |
3592 | if (font->font.full_name) |
3593 | ASET (val, 0, make_unibyte_string (font->font.full_name, | |
3594 | strlen (font->font.full_name))); | |
c2f5bfd6 KH |
3595 | if (font->file_name) |
3596 | ASET (val, 1, make_unibyte_string (font->file_name, | |
3597 | strlen (font->file_name))); | |
3598 | ASET (val, 2, make_number (font->pixel_size)); | |
3599 | ASET (val, 3, make_number (font->font.size)); | |
3600 | ASET (val, 4, make_number (font->ascent)); | |
3601 | ASET (val, 5, make_number (font->descent)); | |
3602 | ASET (val, 6, make_number (font->font.space_width)); | |
3603 | ASET (val, 7, make_number (font->font.average_width)); | |
3604 | if (font->driver->otf_capability) | |
e0708580 KH |
3605 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
3606 | else | |
3607 | ASET (val, 8, Fcons (font->format, Qnil)); | |
c2f5bfd6 KH |
3608 | return val; |
3609 | } | |
3610 | ||
3611 | DEFUN ("get-font-glyphs", Fget_font_glyphs, Sget_font_glyphs, 2, 2, 0, | |
3612 | doc: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING. | |
3613 | Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */) | |
3614 | (font_object, string) | |
3615 | Lisp_Object font_object, string; | |
3616 | { | |
3617 | struct font *font; | |
3618 | int i, len; | |
3619 | Lisp_Object vec; | |
3620 | ||
3621 | CHECK_FONT_GET_OBJECT (font_object, font); | |
3622 | CHECK_STRING (string); | |
3623 | len = SCHARS (string); | |
3624 | vec = Fmake_vector (make_number (len), Qnil); | |
3625 | for (i = 0; i < len; i++) | |
3626 | { | |
3627 | Lisp_Object ch = Faref (string, make_number (i)); | |
3628 | Lisp_Object val; | |
3629 | int c = XINT (ch); | |
3630 | unsigned code; | |
3631 | struct font_metrics metrics; | |
3632 | ||
3633 | code = font->driver->encode_char (font, c); | |
3634 | if (code == FONT_INVALID_CODE) | |
3635 | continue; | |
3636 | val = Fmake_vector (make_number (6), Qnil); | |
3637 | if (code <= MOST_POSITIVE_FIXNUM) | |
3638 | ASET (val, 0, make_number (code)); | |
3639 | else | |
3640 | ASET (val, 0, Fcons (make_number (code >> 16), | |
3641 | make_number (code & 0xFFFF))); | |
3642 | font->driver->text_extents (font, &code, 1, &metrics); | |
3643 | ASET (val, 1, make_number (metrics.lbearing)); | |
3644 | ASET (val, 2, make_number (metrics.rbearing)); | |
3645 | ASET (val, 3, make_number (metrics.width)); | |
3646 | ASET (val, 4, make_number (metrics.ascent)); | |
3647 | ASET (val, 5, make_number (metrics.descent)); | |
3648 | ASET (vec, i, val); | |
3649 | } | |
3650 | return vec; | |
3651 | } | |
3652 | ||
ec6fe57c KH |
3653 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
3654 | doc: /* Return t iff font-spec SPEC matches with FONT. | |
3655 | FONT is a font-spec, font-entity, or font-object. */) | |
3656 | (spec, font) | |
3657 | Lisp_Object spec, font; | |
3658 | { | |
3659 | CHECK_FONT_SPEC (spec); | |
3660 | if (FONT_OBJECT_P (font)) | |
3661 | font = ((struct font *) XSAVE_VALUE (font)->pointer)->entity; | |
3662 | else if (! FONT_ENTITY_P (font)) | |
3663 | CHECK_FONT_SPEC (font); | |
3664 | ||
3665 | return (font_match_p (spec, font) ? Qt : Qnil); | |
3666 | } | |
3667 | ||
10d16101 KH |
3668 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 2, 0, |
3669 | doc: /* Return a font-object for displaying a character at POSISTION. | |
3670 | Optional second arg WINDOW, if non-nil, is a window displaying | |
3671 | the current buffer. It defaults to the currently selected window. */) | |
3672 | (position, window) | |
3673 | Lisp_Object position, window; | |
3674 | { | |
3675 | struct window *w; | |
3676 | EMACS_INT pos, pos_byte; | |
3677 | int c; | |
3678 | ||
3679 | CHECK_NUMBER_COERCE_MARKER (position); | |
3680 | pos = XINT (position); | |
3681 | if (pos < BEGV || pos >= ZV) | |
3682 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
3683 | pos_byte = CHAR_TO_BYTE (pos); | |
3684 | c = FETCH_CHAR (pos_byte); | |
3685 | if (NILP (window)) | |
3686 | window = selected_window; | |
3687 | CHECK_LIVE_WINDOW (window); | |
3688 | w = XWINDOW (selected_window); | |
3689 | ||
3690 | return font_at (c, pos, NULL, w, Qnil); | |
3691 | } | |
3692 | ||
c2f5bfd6 KH |
3693 | #if 0 |
3694 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
3695 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
3696 | The value is a number of glyphs drawn. | |
3697 | Type C-l to recover what previously shown. */) | |
3698 | (font_object, string) | |
3699 | Lisp_Object font_object, string; | |
3700 | { | |
3701 | Lisp_Object frame = selected_frame; | |
3702 | FRAME_PTR f = XFRAME (frame); | |
3703 | struct font *font; | |
3704 | struct face *face; | |
3705 | int i, len, width; | |
3706 | unsigned *code; | |
3707 | ||
3708 | CHECK_FONT_GET_OBJECT (font_object, font); | |
3709 | CHECK_STRING (string); | |
3710 | len = SCHARS (string); | |
3711 | code = alloca (sizeof (unsigned) * len); | |
3712 | for (i = 0; i < len; i++) | |
3713 | { | |
3714 | Lisp_Object ch = Faref (string, make_number (i)); | |
3715 | Lisp_Object val; | |
3716 | int c = XINT (ch); | |
3717 | ||
3718 | code[i] = font->driver->encode_char (font, c); | |
3719 | if (code[i] == FONT_INVALID_CODE) | |
3720 | break; | |
3721 | } | |
3722 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3723 | face->fontp = font; | |
3724 | if (font->driver->prepare_face) | |
3725 | font->driver->prepare_face (f, face); | |
3726 | width = font->driver->text_extents (font, code, i, NULL); | |
3727 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
3728 | if (font->driver->done_face) | |
3729 | font->driver->done_face (f, face); | |
3730 | face->fontp = NULL; | |
3731 | return make_number (len); | |
3732 | } | |
3733 | #endif | |
3734 | ||
3735 | #endif /* FONT_DEBUG */ | |
3736 | ||
3737 | \f | |
3738 | extern void syms_of_ftfont P_ (()); | |
3739 | extern void syms_of_xfont P_ (()); | |
3740 | extern void syms_of_xftfont P_ (()); | |
3741 | extern void syms_of_ftxfont P_ (()); | |
3742 | extern void syms_of_bdffont P_ (()); | |
3743 | extern void syms_of_w32font P_ (()); | |
3744 | extern void syms_of_atmfont P_ (()); | |
3745 | ||
3746 | void | |
3747 | syms_of_font () | |
3748 | { | |
3749 | sort_shift_bits[FONT_SLANT_INDEX] = 0; | |
3750 | sort_shift_bits[FONT_WEIGHT_INDEX] = 7; | |
3751 | sort_shift_bits[FONT_SIZE_INDEX] = 14; | |
3752 | sort_shift_bits[FONT_WIDTH_INDEX] = 21; | |
3753 | sort_shift_bits[FONT_ADSTYLE_INDEX] = 28; | |
3754 | sort_shift_bits[FONT_FOUNDRY_INDEX] = 29; | |
3755 | sort_shift_bits[FONT_FAMILY_INDEX] = 30; | |
3756 | sort_shift_bits[FONT_REGISTRY_INDEX] = 31; | |
fe5ddfbc | 3757 | /* Note that sort_shift_bits[FONT_TYPE_INDEX] is never used. */ |
c2f5bfd6 KH |
3758 | |
3759 | staticpro (&font_style_table); | |
3760 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
3761 | ||
3762 | staticpro (&font_family_alist); | |
3763 | font_family_alist = Qnil; | |
3764 | ||
3765 | DEFSYM (Qfontp, "fontp"); | |
e0708580 | 3766 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 3767 | |
1bb1d99b KH |
3768 | DEFSYM (Qiso8859_1, "iso8859-1"); |
3769 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
3770 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 3771 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 3772 | |
c2f5bfd6 KH |
3773 | DEFSYM (QCotf, ":otf"); |
3774 | DEFSYM (QClanguage, ":language"); | |
3775 | DEFSYM (QCscript, ":script"); | |
3776 | ||
3777 | DEFSYM (QCfoundry, ":foundry"); | |
3778 | DEFSYM (QCadstyle, ":adstyle"); | |
3779 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
3780 | DEFSYM (QCspacing, ":spacing"); |
3781 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 3782 | DEFSYM (QCscalable, ":scalable"); |
c2f5bfd6 KH |
3783 | DEFSYM (QCextra, ":extra"); |
3784 | ||
ec6fe57c KH |
3785 | DEFSYM (Qc, "c"); |
3786 | DEFSYM (Qm, "m"); | |
3787 | DEFSYM (Qp, "p"); | |
3788 | DEFSYM (Qd, "d"); | |
3789 | ||
c2f5bfd6 KH |
3790 | staticpro (&null_string); |
3791 | null_string = build_string (""); | |
3792 | staticpro (&null_vector); | |
3793 | null_vector = Fmake_vector (make_number (0), Qnil); | |
3794 | ||
3795 | staticpro (&scratch_font_spec); | |
3796 | scratch_font_spec = Ffont_spec (0, NULL); | |
3797 | staticpro (&scratch_font_prefer); | |
3798 | scratch_font_prefer = Ffont_spec (0, NULL); | |
3799 | ||
733fd013 KH |
3800 | #ifdef HAVE_LIBOTF |
3801 | staticpro (&otf_list); | |
3802 | otf_list = Qnil; | |
3803 | #endif | |
3804 | ||
c2f5bfd6 KH |
3805 | defsubr (&Sfontp); |
3806 | defsubr (&Sfont_spec); | |
3807 | defsubr (&Sfont_get); | |
3808 | defsubr (&Sfont_put); | |
3809 | defsubr (&Slist_fonts); | |
3810 | defsubr (&Slist_families); | |
3811 | defsubr (&Sfind_font); | |
3812 | defsubr (&Sfont_xlfd_name); | |
3813 | defsubr (&Sclear_font_cache); | |
3814 | defsubr (&Sinternal_set_font_style_table); | |
3815 | defsubr (&Sfont_make_gstring); | |
3816 | defsubr (&Sfont_fill_gstring); | |
733fd013 | 3817 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 3818 | defsubr (&Sfont_otf_alternates); |
c2f5bfd6 KH |
3819 | |
3820 | #ifdef FONT_DEBUG | |
3821 | defsubr (&Sopen_font); | |
3822 | defsubr (&Sclose_font); | |
3823 | defsubr (&Squery_font); | |
3824 | defsubr (&Sget_font_glyphs); | |
ec6fe57c | 3825 | defsubr (&Sfont_match_p); |
10d16101 | 3826 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
3827 | #if 0 |
3828 | defsubr (&Sdraw_string); | |
3829 | #endif | |
3830 | #endif /* FONT_DEBUG */ | |
3831 | ||
3832 | #ifdef HAVE_FREETYPE | |
3833 | syms_of_ftfont (); | |
3834 | #ifdef HAVE_X_WINDOWS | |
3835 | syms_of_xfont (); | |
3836 | syms_of_ftxfont (); | |
3837 | #ifdef HAVE_XFT | |
3838 | syms_of_xftfont (); | |
3839 | #endif /* HAVE_XFT */ | |
3840 | #endif /* HAVE_X_WINDOWS */ | |
3841 | #else /* not HAVE_FREETYPE */ | |
3842 | #ifdef HAVE_X_WINDOWS | |
3843 | syms_of_xfont (); | |
3844 | #endif /* HAVE_X_WINDOWS */ | |
3845 | #endif /* not HAVE_FREETYPE */ | |
3846 | #ifdef HAVE_BDFFONT | |
3847 | syms_of_bdffont (); | |
3848 | #endif /* HAVE_BDFFONT */ | |
3849 | #ifdef WINDOWSNT | |
3850 | syms_of_w32font (); | |
3851 | #endif /* WINDOWSNT */ | |
3852 | #ifdef MAC_OS | |
3853 | syms_of_atmfont (); | |
3854 | #endif /* MAC_OS */ | |
3855 | } | |
885b7d09 MB |
3856 | |
3857 | /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846 | |
3858 | (do not change this comment) */ |