Commit | Line | Data |
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c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
7ecf3dcb GM |
2 | Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc. |
3 | Copyright (C) 2006, 2007, 2008 | |
c2f5bfd6 KH |
4 | National Institute of Advanced Industrial Science and Technology (AIST) |
5 | Registration Number H13PRO009 | |
6 | ||
7 | This file is part of GNU Emacs. | |
8 | ||
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 | |
f9ffa1ea | 11 | the Free Software Foundation; either version 3, or (at your option) |
c2f5bfd6 KH |
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> | |
35027d0c | 27 | #include <strings.h> |
c2f5bfd6 | 28 | #include <ctype.h> |
1701724c KH |
29 | #ifdef HAVE_M17N_FLT |
30 | #include <m17n-flt.h> | |
31 | #endif | |
c2f5bfd6 KH |
32 | |
33 | #include "lisp.h" | |
34 | #include "buffer.h" | |
35 | #include "frame.h" | |
10d16101 | 36 | #include "window.h" |
c2f5bfd6 KH |
37 | #include "dispextern.h" |
38 | #include "charset.h" | |
39 | #include "character.h" | |
40 | #include "composite.h" | |
41 | #include "fontset.h" | |
42 | #include "font.h" | |
43 | ||
43c0454d KH |
44 | #ifdef HAVE_X_WINDOWS |
45 | #include "xterm.h" | |
46 | #endif /* HAVE_X_WINDOWS */ | |
47 | ||
48 | #ifdef HAVE_NTGUI | |
49 | #include "w32term.h" | |
50 | #endif /* HAVE_NTGUI */ | |
51 | ||
52 | #ifdef MAC_OS | |
53 | #include "macterm.h" | |
54 | #endif /* MAC_OS */ | |
55 | ||
ec6fe57c | 56 | #ifndef FONT_DEBUG |
c2f5bfd6 | 57 | #define FONT_DEBUG |
ec6fe57c | 58 | #endif |
c2f5bfd6 KH |
59 | |
60 | #ifdef FONT_DEBUG | |
61 | #undef xassert | |
62 | #define xassert(X) do {if (!(X)) abort ();} while (0) | |
63 | #else | |
64 | #define xassert(X) (void) 0 | |
65 | #endif | |
66 | ||
35027d0c | 67 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
c2f5bfd6 | 68 | |
e0708580 KH |
69 | Lisp_Object Qopentype; |
70 | ||
35027d0c | 71 | /* Important character set strings. */ |
cf96c5c2 | 72 | Lisp_Object Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 73 | |
c2f5bfd6 KH |
74 | /* Special vector of zero length. This is repeatedly used by (struct |
75 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 76 | static Lisp_Object null_vector; |
c2f5bfd6 | 77 | |
35027d0c KH |
78 | /* Vector of 3 elements. Each element is a vector for one of font |
79 | style properties (weight, slant, width). The vector contains a | |
c2f5bfd6 KH |
80 | mapping between symbolic property values (e.g. `medium' for weight) |
81 | and numeric property values (e.g. 100). So, it looks like this: | |
35027d0c KH |
82 | [[(ultra-light . 20) ... (black . 210)] |
83 | [(reverse-oblique . 0) ... (oblique . 210)] | |
84 | [(ultra-contains . 50) ... (wide . 200)]] */ | |
c2f5bfd6 KH |
85 | static Lisp_Object font_style_table; |
86 | ||
35027d0c | 87 | extern Lisp_Object Qnormal; |
c2f5bfd6 KH |
88 | |
89 | /* Symbols representing keys of normal font properties. */ | |
90 | extern Lisp_Object QCtype, QCfamily, QCweight, QCslant, QCwidth, QCsize, QCname; | |
35027d0c | 91 | Lisp_Object QCfoundry, QCadstyle, QCregistry; |
c2f5bfd6 | 92 | /* Symbols representing keys of font extra info. */ |
35027d0c KH |
93 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
94 | Lisp_Object QCantialias, QCfont_entity, QCfc_unknown_spec; | |
ec6fe57c KH |
95 | /* Symbols representing values of font spacing property. */ |
96 | Lisp_Object Qc, Qm, Qp, Qd; | |
c2f5bfd6 | 97 | |
1701724c KH |
98 | /* Alist of font registry symbol and the corresponding charsets |
99 | information. The information is retrieved from | |
100 | Vfont_encoding_alist on demand. | |
101 | ||
102 | Eash element has the form: | |
103 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
104 | or | |
105 | (REGISTRY . nil) | |
106 | ||
107 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
108 | encodes a character code to a glyph code of a font, and | |
109 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
110 | character is supported by a font. | |
111 | ||
112 | The latter form means that the information for REGISTRY couldn't be | |
113 | retrieved. */ | |
114 | static Lisp_Object font_charset_alist; | |
115 | ||
f697fff0 KH |
116 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
117 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
118 | here. */ |
119 | static struct font_driver_list *font_driver_list; | |
120 | ||
35027d0c KH |
121 | \f |
122 | ||
123 | /* Creaters of font-related Lisp object. */ | |
124 | ||
125 | Lisp_Object | |
126 | font_make_spec () | |
127 | { | |
128 | Lisp_Object font_spec; | |
129 | struct font_spec *spec | |
130 | = ((struct font_spec *) | |
131 | allocate_pseudovector (VECSIZE (struct font_spec), | |
132 | FONT_SPEC_MAX, PVEC_FONT)); | |
133 | XSETFONT (font_spec, spec); | |
134 | return font_spec; | |
135 | } | |
136 | ||
137 | Lisp_Object | |
138 | font_make_entity () | |
139 | { | |
140 | Lisp_Object font_entity; | |
141 | struct font_entity *entity | |
142 | = ((struct font_entity *) | |
143 | allocate_pseudovector (VECSIZE (struct font_entity), | |
144 | FONT_ENTITY_MAX, PVEC_FONT)); | |
145 | XSETFONT (font_entity, entity); | |
146 | return font_entity; | |
147 | } | |
148 | ||
149 | Lisp_Object | |
150 | font_make_object (size) | |
151 | int size; | |
152 | { | |
153 | Lisp_Object font_object; | |
154 | struct font *font | |
155 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
156 | XSETFONT (font_object, font); | |
157 | ||
158 | return font_object; | |
159 | } | |
160 | ||
161 | \f | |
162 | ||
ec6fe57c | 163 | static int font_pixel_size P_ ((FRAME_PTR f, Lisp_Object)); |
c2f5bfd6 | 164 | static Lisp_Object font_open_entity P_ ((FRAME_PTR, Lisp_Object, int)); |
35027d0c KH |
165 | static Lisp_Object font_matching_entity P_ ((FRAME_PTR, Lisp_Object *, |
166 | Lisp_Object)); | |
c2f5bfd6 KH |
167 | |
168 | /* Number of registered font drivers. */ | |
169 | static int num_font_drivers; | |
170 | ||
35027d0c KH |
171 | |
172 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
173 | If STR is "*", it returns nil. | |
174 | If all characters in STR are digits, it returns an integer. | |
175 | Otherwise, it returns a symbol interned from STR. */ | |
176 | ||
177 | Lisp_Object | |
178 | font_intern_prop (str, len) | |
179 | char *str; | |
180 | int len; | |
181 | { | |
182 | int i; | |
183 | Lisp_Object tem, string; | |
184 | Lisp_Object obarray; | |
185 | ||
186 | if (len == 1 && *str == '*') | |
187 | return Qnil; | |
188 | if (len >=1 && isdigit (*str)) | |
189 | { | |
190 | for (i = 1; i < len; i++) | |
191 | if (! isdigit (str[i])) | |
192 | break; | |
193 | if (i == len) | |
194 | return make_number (atoi (str)); | |
195 | } | |
196 | ||
197 | /* The following code is copied from the function intern (in lread.c). */ | |
198 | obarray = Vobarray; | |
199 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) | |
200 | obarray = check_obarray (obarray); | |
201 | tem = oblookup (obarray, str, len, len); | |
202 | if (SYMBOLP (tem)) | |
203 | return tem; | |
204 | return Fintern (make_unibyte_string (str, len), obarray); | |
205 | } | |
206 | ||
9331887d | 207 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 208 | |
9331887d KH |
209 | static int |
210 | font_pixel_size (f, spec) | |
211 | FRAME_PTR f; | |
212 | Lisp_Object spec; | |
213 | { | |
214 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); | |
215 | double point_size; | |
35027d0c | 216 | int dpi, pixel_size; |
9331887d | 217 | Lisp_Object extra, val; |
51c01100 | 218 | |
9331887d KH |
219 | if (INTEGERP (size)) |
220 | return XINT (size); | |
221 | if (NILP (size)) | |
35027d0c | 222 | return 0; xassert (FLOATP (size)); |
9331887d | 223 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
224 | val = AREF (spec, FONT_DPI_INDEX); |
225 | if (INTEGERP (val)) | |
226 | dpi = XINT (XCDR (val)); | |
9331887d KH |
227 | else |
228 | dpi = f->resy; | |
229 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
230 | return pixel_size; | |
231 | } | |
232 | ||
c2f5bfd6 | 233 | |
35027d0c KH |
234 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
235 | font vector. If VAL is not valid (i.e. not registered in | |
236 | font_style_table), return -1 if NOERROR is zero, and return a | |
237 | proper index if NOERROR is nonzero. In that case, register VAL in | |
238 | font_style_table if VAL is a symbol, and return a closest index if | |
239 | VAL is an integer. */ | |
c2f5bfd6 | 240 | |
35027d0c KH |
241 | int |
242 | font_style_to_value (prop, val, noerror) | |
c2f5bfd6 | 243 | enum font_property_index prop; |
35027d0c KH |
244 | Lisp_Object val; |
245 | int noerror; | |
c2f5bfd6 | 246 | { |
35027d0c KH |
247 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
248 | int len = ASIZE (table); | |
249 | int i; | |
c2f5bfd6 | 250 | |
35027d0c | 251 | if (SYMBOLP (val)) |
c2f5bfd6 | 252 | { |
35027d0c KH |
253 | char *s; |
254 | Lisp_Object args[2], elt; | |
255 | ||
256 | /* At first try exact match. */ | |
257 | for (i = 0; i < len; i++) | |
258 | if (EQ (val, XCAR (AREF (table, i)))) | |
259 | return (XINT (XCDR (AREF (table, i))) << 8) | i; | |
260 | /* Try also with case-folding match. */ | |
261 | s = SDATA (SYMBOL_NAME (val)); | |
262 | for (i = 0; i < len; i++) | |
c2f5bfd6 | 263 | { |
35027d0c KH |
264 | elt = XCAR (AREF (table, i)); |
265 | if (strcasecmp (s, (char *) SDATA (SYMBOL_NAME (elt))) == 0) | |
266 | return i; | |
c2f5bfd6 | 267 | } |
35027d0c KH |
268 | if (! noerror) |
269 | return -1; | |
270 | if (len == 255) | |
271 | abort (); | |
272 | args[0] = table; | |
273 | args[1] = Fmake_vector (make_number (1), Fcons (val, make_number (255))); | |
274 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); | |
275 | return (255 << 8) | i; | |
c2f5bfd6 | 276 | } |
35027d0c KH |
277 | else |
278 | { | |
279 | int last_i, i, last_n; | |
280 | int numeric = XINT (val); | |
c2f5bfd6 | 281 | |
35027d0c KH |
282 | for (i = 1, last_i = last_n = -1; i < len;) |
283 | { | |
284 | int n = XINT (XCDR (AREF (table, i))); | |
c2f5bfd6 | 285 | |
35027d0c KH |
286 | if (numeric == n) |
287 | return (n << 8) | i; | |
288 | if (numeric < n) | |
289 | { | |
290 | if (! noerror) | |
291 | return -1; | |
292 | return ((last_i < 0 || n - numeric < numeric - last_n) | |
293 | ? (n << 8) | i : (last_n << 8 | last_i)); | |
294 | } | |
295 | last_i = i; | |
296 | last_n = n; | |
297 | for (i++; i < len && n == XINT (XCDR (AREF (table, i + 1))); i++); | |
298 | } | |
299 | if (! noerror) | |
300 | return -1; | |
301 | return (last_n << 8) | last_i; | |
302 | } | |
303 | } | |
c2f5bfd6 KH |
304 | |
305 | Lisp_Object | |
35027d0c KH |
306 | font_style_symbolic (font, prop, for_face) |
307 | Lisp_Object font; | |
308 | enum font_property_index prop; | |
309 | int for_face; | |
c2f5bfd6 | 310 | { |
35027d0c KH |
311 | Lisp_Object val = AREF (font, prop); |
312 | Lisp_Object table; | |
313 | int i, numeric; | |
c2f5bfd6 | 314 | |
35027d0c KH |
315 | if (NILP (val)) |
316 | return Qnil; | |
317 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
318 | if (! for_face) | |
319 | return XCAR (AREF (table, XINT (val) & 0xFF)); | |
320 | numeric = XINT (val) >> 8; | |
321 | for (i = 0; i < ASIZE (table); i++) | |
322 | if (XINT (XCDR (AREF (table, i))) == numeric) | |
323 | return XCAR (AREF (table, i)); | |
324 | abort (); | |
325 | return Qnil; | |
c2f5bfd6 KH |
326 | } |
327 | ||
328 | extern Lisp_Object Vface_alternative_font_family_alist; | |
329 | ||
1701724c KH |
330 | extern Lisp_Object find_font_encoding P_ ((Lisp_Object)); |
331 | ||
35027d0c | 332 | |
1701724c KH |
333 | /* Return encoding charset and repertory charset for REGISTRY in |
334 | ENCODING and REPERTORY correspondingly. If correct information for | |
335 | REGISTRY is available, return 0. Otherwise return -1. */ | |
336 | ||
337 | int | |
338 | font_registry_charsets (registry, encoding, repertory) | |
339 | Lisp_Object registry; | |
340 | struct charset **encoding, **repertory; | |
341 | { | |
342 | Lisp_Object val; | |
343 | int encoding_id, repertory_id; | |
344 | ||
35027d0c | 345 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
346 | if (! NILP (val)) |
347 | { | |
348 | val = XCDR (val); | |
349 | if (NILP (val)) | |
350 | return -1; | |
351 | encoding_id = XINT (XCAR (val)); | |
352 | repertory_id = XINT (XCDR (val)); | |
353 | } | |
354 | else | |
355 | { | |
356 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
357 | if (SYMBOLP (val) && CHARSETP (val)) | |
358 | { | |
359 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
360 | } | |
361 | else if (CONSP (val)) | |
362 | { | |
363 | if (! CHARSETP (XCAR (val))) | |
364 | goto invalid_entry; | |
365 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
366 | if (NILP (XCDR (val))) | |
367 | repertory_id = -1; | |
368 | else | |
369 | { | |
370 | if (! CHARSETP (XCDR (val))) | |
371 | goto invalid_entry; | |
372 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
373 | } | |
51c01100 | 374 | } |
1701724c KH |
375 | else |
376 | goto invalid_entry; | |
377 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
378 | font_charset_alist | |
379 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
380 | } | |
381 | ||
382 | if (encoding) | |
383 | *encoding = CHARSET_FROM_ID (encoding_id); | |
384 | if (repertory) | |
385 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
386 | return 0; | |
387 | ||
388 | invalid_entry: | |
389 | font_charset_alist | |
390 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
391 | return -1; | |
392 | } | |
393 | ||
c2f5bfd6 | 394 | \f |
45eb10fb KH |
395 | /* Font property value validaters. See the comment of |
396 | font_property_table for the meaning of the arguments. */ | |
397 | ||
35027d0c | 398 | static Lisp_Object font_prop_validate P_ ((int, Lisp_Object, Lisp_Object)); |
45eb10fb KH |
399 | static Lisp_Object font_prop_validate_symbol P_ ((Lisp_Object, Lisp_Object)); |
400 | static Lisp_Object font_prop_validate_style P_ ((Lisp_Object, Lisp_Object)); | |
401 | static Lisp_Object font_prop_validate_non_neg P_ ((Lisp_Object, Lisp_Object)); | |
402 | static Lisp_Object font_prop_validate_spacing P_ ((Lisp_Object, Lisp_Object)); | |
35027d0c | 403 | static int get_font_prop_index P_ ((Lisp_Object)); |
c2f5bfd6 KH |
404 | |
405 | static Lisp_Object | |
45eb10fb | 406 | font_prop_validate_symbol (prop, val) |
ec6fe57c | 407 | Lisp_Object prop, val; |
c2f5bfd6 KH |
408 | { |
409 | if (STRINGP (val)) | |
35027d0c KH |
410 | val = Fintern (val, Qnil); |
411 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 412 | val = Qerror; |
35027d0c KH |
413 | else if (EQ (prop, QCregistry)) |
414 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
415 | return val; |
416 | } | |
417 | ||
35027d0c | 418 | |
c2f5bfd6 | 419 | static Lisp_Object |
35027d0c KH |
420 | font_prop_validate_style (style, val) |
421 | Lisp_Object style, val; | |
c2f5bfd6 | 422 | { |
35027d0c KH |
423 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
424 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
425 | : FONT_WIDTH_INDEX); | |
426 | int n; | |
427 | if (INTEGERP (val)) | |
c2f5bfd6 | 428 | { |
35027d0c KH |
429 | n = XINT (val); |
430 | if ((n & 0xFF) | |
431 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) | |
c2f5bfd6 KH |
432 | val = Qerror; |
433 | else | |
434 | { | |
35027d0c KH |
435 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), n & 0xFF); |
436 | if (XINT (XCDR (elt)) != (n >> 8)) | |
c2f5bfd6 KH |
437 | val = Qerror; |
438 | } | |
439 | } | |
35027d0c KH |
440 | else if (SYMBOLP (val)) |
441 | { | |
442 | int n = font_style_to_value (prop, val, 0); | |
443 | ||
444 | val = n >= 0 ? make_number (n) : Qerror; | |
445 | } | |
446 | else | |
447 | val = Qerror; | |
c2f5bfd6 KH |
448 | return val; |
449 | } | |
450 | ||
451 | static Lisp_Object | |
45eb10fb | 452 | font_prop_validate_non_neg (prop, val) |
ec6fe57c | 453 | Lisp_Object prop, val; |
c2f5bfd6 KH |
454 | { |
455 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
456 | ? val : Qerror); | |
457 | } | |
458 | ||
459 | static Lisp_Object | |
45eb10fb | 460 | font_prop_validate_spacing (prop, val) |
ec6fe57c KH |
461 | Lisp_Object prop, val; |
462 | { | |
463 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
464 | return val; | |
465 | if (EQ (val, Qc)) | |
466 | return make_number (FONT_SPACING_CHARCELL); | |
467 | if (EQ (val, Qm)) | |
468 | return make_number (FONT_SPACING_MONO); | |
469 | if (EQ (val, Qp)) | |
470 | return make_number (FONT_SPACING_PROPORTIONAL); | |
35027d0c KH |
471 | if (EQ (val, Qd)) |
472 | return make_number (FONT_SPACING_DUAL); | |
ec6fe57c KH |
473 | return Qerror; |
474 | } | |
475 | ||
1701724c KH |
476 | static Lisp_Object |
477 | font_prop_validate_otf (prop, val) | |
478 | Lisp_Object prop, val; | |
479 | { | |
480 | Lisp_Object tail, tmp; | |
481 | int i; | |
482 | ||
483 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
484 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
485 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
486 | if (! CONSP (val)) | |
487 | return Qerror; | |
488 | if (! SYMBOLP (XCAR (val))) | |
489 | return Qerror; | |
490 | tail = XCDR (val); | |
491 | if (NILP (tail)) | |
492 | return val; | |
493 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
494 | return Qerror; | |
495 | for (i = 0; i < 2; i++) | |
496 | { | |
497 | tail = XCDR (tail); | |
498 | if (NILP (tail)) | |
499 | return val; | |
500 | if (! CONSP (tail)) | |
501 | return Qerror; | |
502 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
503 | if (! SYMBOLP (XCAR (tmp))) | |
504 | return Qerror; | |
505 | if (! NILP (tmp)) | |
506 | return Qerror; | |
507 | } | |
508 | return val; | |
509 | } | |
510 | ||
ec6fe57c KH |
511 | /* Structure of known font property keys and validater of the |
512 | values. */ | |
c2f5bfd6 KH |
513 | struct |
514 | { | |
ec6fe57c | 515 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 516 | Lisp_Object *key; |
45eb10fb KH |
517 | /* Function to validate PROP's value VAL, or NULL if any value is |
518 | ok. The value is VAL or its regularized value if VAL is valid, | |
519 | and Qerror if not. */ | |
520 | Lisp_Object (*validater) P_ ((Lisp_Object prop, Lisp_Object val)); | |
ec6fe57c KH |
521 | } font_property_table[] = |
522 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
523 | { &QCfoundry, font_prop_validate_symbol }, |
524 | { &QCfamily, font_prop_validate_symbol }, | |
525 | { &QCadstyle, font_prop_validate_symbol }, | |
526 | { &QCregistry, font_prop_validate_symbol }, | |
527 | { &QCweight, font_prop_validate_style }, | |
528 | { &QCslant, font_prop_validate_style }, | |
529 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 530 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
531 | { &QCdpi, font_prop_validate_non_neg }, |
532 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
533 | { &QCavgwidth, font_prop_validate_non_neg }, |
534 | /* The order of the above entries must match with enum | |
535 | font_property_index. */ | |
536 | { &QClang, font_prop_validate_symbol }, | |
537 | { &QCscript, font_prop_validate_symbol }, | |
538 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
539 | }; |
540 | ||
45eb10fb | 541 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
542 | #define FONT_PROPERTY_TABLE_SIZE \ |
543 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
544 | ||
45eb10fb | 545 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 546 | already known property. */ |
45eb10fb | 547 | |
ec6fe57c | 548 | static int |
35027d0c | 549 | get_font_prop_index (key) |
c2f5bfd6 KH |
550 | Lisp_Object key; |
551 | { | |
35027d0c KH |
552 | int i; |
553 | ||
554 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
555 | if (EQ (key, *font_property_table[i].key)) | |
556 | return i; | |
ec6fe57c | 557 | return -1; |
c2f5bfd6 KH |
558 | } |
559 | ||
35027d0c KH |
560 | /* Validate the font property. The property key is specified by the |
561 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
562 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 563 | |
c2f5bfd6 | 564 | static Lisp_Object |
35027d0c KH |
565 | font_prop_validate (idx, prop, val) |
566 | int idx; | |
567 | Lisp_Object prop, val; | |
c2f5bfd6 | 568 | { |
35027d0c | 569 | Lisp_Object validated; |
c2f5bfd6 | 570 | |
35027d0c KH |
571 | if (NILP (prop)) |
572 | prop = *font_property_table[idx].key; | |
573 | else | |
ec6fe57c | 574 | { |
35027d0c KH |
575 | idx = get_font_prop_index (prop); |
576 | if (idx < 0) | |
577 | return val; | |
ec6fe57c | 578 | } |
35027d0c KH |
579 | validated = (font_property_table[idx].validater) (prop, val); |
580 | if (EQ (validated, Qerror)) | |
581 | signal_error ("invalid font property", Fcons (prop, val)); | |
582 | return validated; | |
c2f5bfd6 | 583 | } |
51c01100 | 584 | |
35027d0c KH |
585 | |
586 | /* Store VAL as a value of extra font property PROP in FONT while | |
587 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 588 | |
01dbeb0b | 589 | Lisp_Object |
ec6fe57c | 590 | font_put_extra (font, prop, val) |
9331887d | 591 | Lisp_Object font, prop, val; |
9331887d KH |
592 | { |
593 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 594 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
595 | |
596 | if (NILP (slot)) | |
597 | { | |
35027d0c KH |
598 | Lisp_Object prev = Qnil; |
599 | ||
600 | while (CONSP (extra) | |
601 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
602 | prev = extra, extra = XCDR (extra); | |
603 | if (NILP (prev)) | |
604 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); | |
605 | else | |
606 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); | |
ec6fe57c | 607 | return val; |
9331887d | 608 | } |
9331887d | 609 | XSETCDR (slot, val); |
ec6fe57c | 610 | return val; |
9331887d KH |
611 | } |
612 | ||
c2f5bfd6 KH |
613 | \f |
614 | /* Font name parser and unparser */ | |
615 | ||
ec6fe57c KH |
616 | static int parse_matrix P_ ((char *)); |
617 | static int font_expand_wildcards P_ ((Lisp_Object *, int)); | |
618 | static int font_parse_name P_ ((char *, Lisp_Object)); | |
c2f5bfd6 | 619 | |
ec6fe57c | 620 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
621 | enum xlfd_field_index |
622 | { | |
623 | XLFD_FOUNDRY_INDEX, | |
624 | XLFD_FAMILY_INDEX, | |
625 | XLFD_WEIGHT_INDEX, | |
626 | XLFD_SLANT_INDEX, | |
627 | XLFD_SWIDTH_INDEX, | |
628 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
629 | XLFD_PIXEL_INDEX, |
630 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
631 | XLFD_RESX_INDEX, |
632 | XLFD_RESY_INDEX, | |
633 | XLFD_SPACING_INDEX, | |
634 | XLFD_AVGWIDTH_INDEX, | |
635 | XLFD_REGISTRY_INDEX, | |
636 | XLFD_ENCODING_INDEX, | |
637 | XLFD_LAST_INDEX | |
638 | }; | |
639 | ||
ec6fe57c | 640 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
641 | enum xlfd_field_mask |
642 | { | |
643 | XLFD_FOUNDRY_MASK = 0x0001, | |
644 | XLFD_FAMILY_MASK = 0x0002, | |
645 | XLFD_WEIGHT_MASK = 0x0004, | |
646 | XLFD_SLANT_MASK = 0x0008, | |
647 | XLFD_SWIDTH_MASK = 0x0010, | |
648 | XLFD_ADSTYLE_MASK = 0x0020, | |
649 | XLFD_PIXEL_MASK = 0x0040, | |
650 | XLFD_POINT_MASK = 0x0080, | |
651 | XLFD_RESX_MASK = 0x0100, | |
652 | XLFD_RESY_MASK = 0x0200, | |
653 | XLFD_SPACING_MASK = 0x0400, | |
654 | XLFD_AVGWIDTH_MASK = 0x0800, | |
655 | XLFD_REGISTRY_MASK = 0x1000, | |
656 | XLFD_ENCODING_MASK = 0x2000 | |
657 | }; | |
658 | ||
659 | ||
c2f5bfd6 KH |
660 | /* Parse P pointing the pixel/point size field of the form |
661 | `[A B C D]' which specifies a transformation matrix: | |
662 | ||
663 | A B 0 | |
664 | C D 0 | |
665 | 0 0 1 | |
666 | ||
667 | by which all glyphs of the font are transformed. The spec says | |
668 | that scalar value N for the pixel/point size is equivalent to: | |
669 | A = N * resx/resy, B = C = 0, D = N. | |
670 | ||
671 | Return the scalar value N if the form is valid. Otherwise return | |
672 | -1. */ | |
673 | ||
674 | static int | |
675 | parse_matrix (p) | |
676 | char *p; | |
677 | { | |
678 | double matrix[4]; | |
679 | char *end; | |
680 | int i; | |
681 | ||
682 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
683 | { | |
684 | if (*p == '~') | |
685 | matrix[i] = - strtod (p + 1, &end); | |
686 | else | |
687 | matrix[i] = strtod (p, &end); | |
688 | p = end; | |
689 | } | |
690 | return (i == 4 ? (int) matrix[3] : -1); | |
691 | } | |
692 | ||
4485a28e KH |
693 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
694 | multiple fields to fill in all 14 XLFD fields while restring a | |
695 | field position by its contents. */ | |
696 | ||
ec6fe57c | 697 | static int |
4485a28e KH |
698 | font_expand_wildcards (field, n) |
699 | Lisp_Object field[XLFD_LAST_INDEX]; | |
700 | int n; | |
701 | { | |
702 | /* Copy of FIELD. */ | |
703 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
704 | /* Array of information about where this element can go. Nth | |
705 | element is for Nth element of FIELD. */ | |
706 | struct { | |
707 | /* Minimum possible field. */ | |
708 | int from; | |
709 | /* Maxinum possible field. */ | |
710 | int to; | |
711 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
712 | int mask; | |
713 | } range[XLFD_LAST_INDEX]; | |
714 | int i, j; | |
ec6fe57c | 715 | int range_from, range_to; |
4485a28e KH |
716 | unsigned range_mask; |
717 | ||
718 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
719 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
720 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 721 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 722 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
723 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
724 | ||
725 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
726 | field. The value is shifted to left one bit by one in the | |
727 | following loop. */ | |
728 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
729 | range_mask = (range_mask << 1) | 1; | |
730 | ||
ec6fe57c KH |
731 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
732 | position-based retriction for FIELD[I]. */ | |
733 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
734 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 735 | { |
4485a28e KH |
736 | Lisp_Object val = field[i]; |
737 | ||
738 | tmp[i] = val; | |
739 | if (NILP (val)) | |
740 | { | |
741 | /* Wildcard. */ | |
742 | range[i].from = range_from; | |
743 | range[i].to = range_to; | |
744 | range[i].mask = range_mask; | |
745 | } | |
746 | else | |
747 | { | |
748 | /* The triplet FROM, TO, and MASK is a value-based | |
749 | retriction for FIELD[I]. */ | |
750 | int from, to; | |
751 | unsigned mask; | |
752 | ||
753 | if (INTEGERP (val)) | |
754 | { | |
755 | int numeric = XINT (val); | |
756 | ||
ef18374f KH |
757 | if (i + 1 == n) |
758 | from = to = XLFD_ENCODING_INDEX, | |
759 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
760 | else if (numeric == 0) |
761 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
762 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
763 | else if (numeric <= 48) |
764 | from = to = XLFD_PIXEL_INDEX, | |
765 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 766 | else |
ec6fe57c | 767 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
768 | mask = XLFD_LARGENUM_MASK; |
769 | } | |
35027d0c | 770 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
771 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
772 | mask = XLFD_NULL_MASK; | |
773 | else if (i == 0) | |
774 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
775 | else if (i + 1 == n) | |
776 | { | |
777 | Lisp_Object name = SYMBOL_NAME (val); | |
778 | ||
779 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
780 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
781 | mask = XLFD_REGENC_MASK; | |
782 | else | |
783 | from = to = XLFD_ENCODING_INDEX, | |
784 | mask = XLFD_ENCODING_MASK; | |
785 | } | |
ef18374f KH |
786 | else if (range_from <= XLFD_WEIGHT_INDEX |
787 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 788 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 789 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
790 | else if (range_from <= XLFD_SLANT_INDEX |
791 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 792 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 793 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
794 | else if (range_from <= XLFD_SWIDTH_INDEX |
795 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 796 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
797 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
798 | else | |
799 | { | |
ec6fe57c | 800 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
801 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
802 | else | |
803 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
804 | mask = XLFD_SYMBOL_MASK; | |
805 | } | |
806 | ||
807 | /* Merge position-based and value-based restrictions. */ | |
808 | mask &= range_mask; | |
809 | while (from < range_from) | |
810 | mask &= ~(1 << from++); | |
811 | while (from < 14 && ! (mask & (1 << from))) | |
812 | from++; | |
813 | while (to > range_to) | |
814 | mask &= ~(1 << to--); | |
815 | while (to >= 0 && ! (mask & (1 << to))) | |
816 | to--; | |
817 | if (from > to) | |
818 | return -1; | |
819 | range[i].from = from; | |
820 | range[i].to = to; | |
821 | range[i].mask = mask; | |
822 | ||
823 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
824 | { |
825 | /* The range is narrowed by value-based restrictions. | |
826 | Reflect it to the other fields. */ | |
827 | ||
828 | /* Following fields should be after FROM. */ | |
829 | range_from = from; | |
830 | /* Preceding fields should be before TO. */ | |
831 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
832 | { | |
833 | /* Check FROM for non-wildcard field. */ | |
834 | if (! NILP (tmp[j]) && range[j].from < from) | |
835 | { | |
836 | while (range[j].from < from) | |
837 | range[j].mask &= ~(1 << range[j].from++); | |
838 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
839 | from++; | |
840 | range[j].from = from; | |
841 | } | |
842 | else | |
843 | from = range[j].from; | |
844 | if (range[j].to > to) | |
845 | { | |
846 | while (range[j].to > to) | |
847 | range[j].mask &= ~(1 << range[j].to--); | |
848 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
849 | to--; | |
850 | range[j].to = to; | |
851 | } | |
852 | else | |
853 | to = range[j].to; | |
854 | if (from > to) | |
855 | return -1; | |
856 | } | |
857 | } | |
4485a28e KH |
858 | } |
859 | } | |
860 | ||
861 | /* Decide all fileds from restrictions in RANGE. */ | |
862 | for (i = j = 0; i < n ; i++) | |
863 | { | |
864 | if (j < range[i].from) | |
865 | { | |
866 | if (i == 0 || ! NILP (tmp[i - 1])) | |
867 | /* None of TMP[X] corresponds to Jth field. */ | |
868 | return -1; | |
869 | for (; j < range[i].from; j++) | |
870 | field[j] = Qnil; | |
871 | } | |
872 | field[j++] = tmp[i]; | |
873 | } | |
874 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
875 | return -1; | |
876 | for (; j < XLFD_LAST_INDEX; j++) | |
877 | field[j] = Qnil; | |
878 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
879 | field[XLFD_ENCODING_INDEX] | |
880 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
881 | return 0; | |
882 | } | |
883 | ||
43a1d19b SM |
884 | |
885 | #ifdef ENABLE_CHECKING | |
886 | /* Match a 14-field XLFD pattern against a full XLFD font name. */ | |
887 | static int | |
888 | font_match_xlfd (char *pattern, char *name) | |
889 | { | |
890 | while (*pattern && *name) | |
891 | { | |
892 | if (*pattern == *name) | |
893 | pattern++; | |
894 | else if (*pattern == '*') | |
895 | if (*name == pattern[1]) | |
896 | pattern += 2; | |
897 | else | |
898 | ; | |
899 | else | |
900 | return 0; | |
901 | name++; | |
902 | } | |
903 | return 1; | |
904 | } | |
905 | ||
906 | /* Make sure the font object matches the XLFD font name. */ | |
907 | static int | |
908 | font_check_xlfd_parse (Lisp_Object font, char *name) | |
909 | { | |
910 | char name_check[256]; | |
911 | font_unparse_xlfd (font, 0, name_check, 255); | |
912 | return font_match_xlfd (name_check, name); | |
913 | } | |
914 | ||
915 | #endif | |
916 | ||
35027d0c | 917 | |
ef18374f | 918 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
919 | (font-spec or font-entity). Size property of FONT is set as |
920 | follows: | |
921 | specified XLFD fields FONT property | |
922 | --------------------- ------------- | |
923 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
924 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
925 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
926 | ||
ec6fe57c | 927 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 928 | |
ec6fe57c KH |
929 | FONT is usually a font-spec, but when this function is called from |
930 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 931 | a fully specified XLFD. */ |
c2f5bfd6 KH |
932 | |
933 | int | |
ec6fe57c | 934 | font_parse_xlfd (name, font) |
c2f5bfd6 KH |
935 | char *name; |
936 | Lisp_Object font; | |
c2f5bfd6 KH |
937 | { |
938 | int len = strlen (name); | |
35027d0c | 939 | int i, j, n; |
cf23b845 | 940 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 941 | Lisp_Object val; |
4485a28e | 942 | char *p; |
c2f5bfd6 KH |
943 | |
944 | if (len > 255) | |
945 | /* Maximum XLFD name length is 255. */ | |
946 | return -1; | |
ec6fe57c KH |
947 | /* Accept "*-.." as a fully specified XLFD. */ |
948 | if (name[0] == '*' && name[1] == '-') | |
949 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; | |
950 | else | |
951 | i = 0; | |
952 | for (p = name + i; *p; p++) | |
35027d0c KH |
953 | if (*p == '-') |
954 | { | |
955 | f[i++] = p + 1; | |
956 | if (i == XLFD_LAST_INDEX) | |
957 | break; | |
958 | } | |
959 | f[i] = name + len; | |
c2f5bfd6 | 960 | |
35027d0c | 961 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N]) |
4485a28e | 962 | |
ec6fe57c | 963 | if (i == XLFD_LAST_INDEX) |
4485a28e | 964 | { |
35027d0c | 965 | /* Fully specified XLFD. */ |
ec6fe57c | 966 | int pixel_size; |
35027d0c | 967 | int spacing_char; |
ec6fe57c | 968 | |
35027d0c KH |
969 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD (XLFD_FOUNDRY_INDEX)); |
970 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD (XLFD_FAMILY_INDEX)); | |
971 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
972 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 973 | { |
35027d0c | 974 | val = INTERN_FIELD (i); |
ec6fe57c | 975 | if (! NILP (val)) |
4485a28e | 976 | { |
35027d0c KH |
977 | if ((n = font_style_to_value (j, INTERN_FIELD (i), 0)) < 0) |
978 | return -1; | |
979 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
980 | } |
981 | } | |
35027d0c KH |
982 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD (XLFD_ADSTYLE_INDEX)); |
983 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) | |
984 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
985 | else | |
986 | ASET (font, FONT_REGISTRY_INDEX, | |
987 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
988 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX])); | |
ec6fe57c KH |
989 | p = f[XLFD_PIXEL_INDEX]; |
990 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 991 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
992 | else |
993 | { | |
35027d0c KH |
994 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
995 | if (INTEGERP (val)) | |
ec6fe57c KH |
996 | ASET (font, FONT_SIZE_INDEX, val); |
997 | else | |
998 | { | |
999 | double point_size = -1; | |
1000 | ||
1001 | xassert (FONT_SPEC_P (font)); | |
1002 | p = f[XLFD_POINT_INDEX]; | |
1003 | if (*p == '[') | |
1004 | point_size = parse_matrix (p); | |
1005 | else if (isdigit (*p)) | |
1006 | point_size = atoi (p), point_size /= 10; | |
1007 | if (point_size >= 0) | |
1008 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1009 | } |
1010 | } | |
ec6fe57c | 1011 | |
35027d0c KH |
1012 | ASET (font, FONT_DPI_INDEX, INTERN_FIELD (XLFD_RESY_INDEX)); |
1013 | val = INTERN_FIELD (XLFD_SPACING_INDEX); | |
1014 | if (! NILP (val)) | |
ec6fe57c | 1015 | { |
35027d0c KH |
1016 | val = font_prop_validate_spacing (QCspacing, val); |
1017 | if (! INTEGERP (val)) | |
1018 | return -1; | |
1019 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1020 | } |
ec6fe57c KH |
1021 | p = f[XLFD_AVGWIDTH_INDEX]; |
1022 | if (*p == '~') | |
1023 | p++; | |
35027d0c KH |
1024 | ASET (font, FONT_AVGWIDTH_INDEX, |
1025 | font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p)); | |
4485a28e KH |
1026 | } |
1027 | else | |
c2f5bfd6 | 1028 | { |
4485a28e | 1029 | int wild_card_found = 0; |
ec6fe57c | 1030 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1031 | |
35027d0c KH |
1032 | if (FONT_ENTITY_P (font)) |
1033 | return -1; | |
ec6fe57c | 1034 | for (j = 0; j < i; j++) |
4485a28e | 1035 | { |
ec6fe57c | 1036 | if (*f[j] == '*') |
4485a28e | 1037 | { |
ec6fe57c KH |
1038 | if (f[j][1] && f[j][1] != '-') |
1039 | return -1; | |
1040 | prop[j] = Qnil; | |
1041 | wild_card_found = 1; | |
1042 | } | |
ec6fe57c | 1043 | else if (j + 1 < i) |
35027d0c | 1044 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1045 | else |
35027d0c | 1046 | prop[j] = font_intern_prop (f[j], f[i] - f[j]); |
4485a28e KH |
1047 | } |
1048 | if (! wild_card_found) | |
c2f5bfd6 | 1049 | return -1; |
ec6fe57c | 1050 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1051 | return -1; |
ec6fe57c | 1052 | |
35027d0c KH |
1053 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1054 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1055 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1056 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1057 | if (! NILP (prop[i])) |
35027d0c KH |
1058 | { |
1059 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1060 | return -1; | |
1061 | ASET (font, j, make_number (n)); | |
1062 | } | |
1063 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1064 | val = prop[XLFD_REGISTRY_INDEX]; |
1065 | if (NILP (val)) | |
c2f5bfd6 | 1066 | { |
ec6fe57c KH |
1067 | val = prop[XLFD_ENCODING_INDEX]; |
1068 | if (! NILP (val)) | |
35027d0c | 1069 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1070 | } |
ec6fe57c | 1071 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1072 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1073 | else |
35027d0c KH |
1074 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1075 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1076 | if (! NILP (val)) |
35027d0c | 1077 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1078 | |
1079 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1080 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1081 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1082 | { |
ec6fe57c | 1083 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1084 | |
ec6fe57c KH |
1085 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1086 | } | |
c2f5bfd6 | 1087 | |
35027d0c KH |
1088 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1089 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1090 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1091 | { | |
1092 | val = font_prop_validate_spacing (QCspacing, | |
1093 | prop[XLFD_SPACING_INDEX]); | |
1094 | if (! INTEGERP (val)) | |
1095 | return -1; | |
1096 | ASET (font, FONT_SPACING_INDEX, val); | |
1097 | } | |
ec6fe57c | 1098 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1099 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1100 | } |
1101 | ||
ec6fe57c | 1102 | return 0; |
c2f5bfd6 KH |
1103 | } |
1104 | ||
1105 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1106 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1107 | 0, use PIXEL_SIZE instead. */ | |
1108 | ||
1109 | int | |
1110 | font_unparse_xlfd (font, pixel_size, name, nbytes) | |
1111 | Lisp_Object font; | |
1bb1d99b | 1112 | int pixel_size; |
c2f5bfd6 KH |
1113 | char *name; |
1114 | int nbytes; | |
1115 | { | |
ec6fe57c | 1116 | char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 KH |
1117 | Lisp_Object val; |
1118 | int i, j, len = 0; | |
1119 | ||
1120 | xassert (FONTP (font)); | |
1121 | ||
1122 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1123 | i++, j++) | |
1124 | { | |
1125 | if (i == FONT_ADSTYLE_INDEX) | |
1126 | j = XLFD_ADSTYLE_INDEX; | |
1127 | else if (i == FONT_REGISTRY_INDEX) | |
1128 | j = XLFD_REGISTRY_INDEX; | |
1129 | val = AREF (font, i); | |
1130 | if (NILP (val)) | |
1bb1d99b KH |
1131 | { |
1132 | if (j == XLFD_REGISTRY_INDEX) | |
1133 | f[j] = "*-*", len += 4; | |
1134 | else | |
1135 | f[j] = "*", len += 2; | |
1136 | } | |
c2f5bfd6 KH |
1137 | else |
1138 | { | |
1139 | if (SYMBOLP (val)) | |
1140 | val = SYMBOL_NAME (val); | |
1bb1d99b KH |
1141 | if (j == XLFD_REGISTRY_INDEX |
1142 | && ! strchr ((char *) SDATA (val), '-')) | |
1143 | { | |
1144 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1145 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1146 | { | |
1147 | f[j] = alloca (SBYTES (val) + 3); | |
1148 | sprintf (f[j], "%s-*", SDATA (val)); | |
1149 | len += SBYTES (val) + 3; | |
1150 | } | |
1151 | else | |
1152 | { | |
1153 | f[j] = alloca (SBYTES (val) + 4); | |
1154 | sprintf (f[j], "%s*-*", SDATA (val)); | |
1155 | len += SBYTES (val) + 4; | |
1156 | } | |
1157 | } | |
1158 | else | |
1159 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
c2f5bfd6 KH |
1160 | } |
1161 | } | |
1162 | ||
1163 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1164 | i++, j++) | |
1165 | { | |
35027d0c | 1166 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 KH |
1167 | if (NILP (val)) |
1168 | f[j] = "*", len += 2; | |
1169 | else | |
1170 | { | |
35027d0c | 1171 | val = SYMBOL_NAME (val); |
c2f5bfd6 KH |
1172 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; |
1173 | } | |
1174 | } | |
1175 | ||
1176 | val = AREF (font, FONT_SIZE_INDEX); | |
1177 | xassert (NUMBERP (val) || NILP (val)); | |
1178 | if (INTEGERP (val)) | |
1179 | { | |
35027d0c | 1180 | i = XINT (val); |
81aefea4 SM |
1181 | if (i <= 0) |
1182 | i = pixel_size; | |
c2f5bfd6 | 1183 | if (i > 0) |
81aefea4 SM |
1184 | { |
1185 | f[XLFD_PIXEL_INDEX] = alloca (22); | |
1186 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", i) + 1; | |
1187 | } | |
1188 | else | |
1189 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; | |
c2f5bfd6 KH |
1190 | } |
1191 | else if (FLOATP (val)) | |
1192 | { | |
35027d0c | 1193 | i = XFLOAT_DATA (val) * 10; |
ec6fe57c | 1194 | f[XLFD_PIXEL_INDEX] = alloca (12); |
ec6fe57c | 1195 | len += sprintf (f[XLFD_PIXEL_INDEX], "*-%d", i) + 1; |
c2f5bfd6 KH |
1196 | } |
1197 | else | |
ec6fe57c KH |
1198 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1199 | ||
35027d0c | 1200 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1201 | { |
35027d0c KH |
1202 | i = XINT (AREF (font, FONT_DPI_INDEX)); |
1203 | f[XLFD_RESX_INDEX] = alloca (22); | |
1204 | len += sprintf (f[XLFD_RESX_INDEX], | |
1205 | "%d-%d", i, i) + 1; | |
c2f5bfd6 KH |
1206 | } |
1207 | else | |
35027d0c KH |
1208 | f[XLFD_RESX_INDEX] = "*-*", len += 4; |
1209 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
ec6fe57c | 1210 | { |
35027d0c | 1211 | int spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1212 | |
35027d0c KH |
1213 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1214 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1215 | : spacing <= FONT_SPACING_MONO ? "m" | |
1216 | : "c"); | |
1217 | len += 2; | |
ec6fe57c | 1218 | } |
35027d0c KH |
1219 | else |
1220 | f[XLFD_SPACING_INDEX] = "*", len += 2; | |
1221 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1222 | { | |
1223 | f[XLFD_AVGWIDTH_INDEX] = alloca (11); | |
1224 | len += sprintf (f[XLFD_AVGWIDTH_INDEX], | |
1225 | "%d", XINT (AREF (font, FONT_AVGWIDTH_INDEX))) + 1; | |
1226 | } | |
1227 | else | |
1228 | f[XLFD_AVGWIDTH_INDEX] = "*", len += 2; | |
ec6fe57c | 1229 | len++; /* for terminating '\0'. */ |
c2f5bfd6 KH |
1230 | if (len >= nbytes) |
1231 | return -1; | |
35027d0c | 1232 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1233 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1234 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1235 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1236 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1237 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1238 | f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1239 | } |
1240 | ||
ef18374f | 1241 | /* Parse NAME (null terminated) as Fonconfig's name format and store |
9331887d KH |
1242 | information in FONT (font-spec or font-entity). If NAME is |
1243 | successfully parsed, return 0. Otherwise return -1. */ | |
ef18374f KH |
1244 | |
1245 | int | |
ec6fe57c | 1246 | font_parse_fcname (name, font) |
ef18374f KH |
1247 | char *name; |
1248 | Lisp_Object font; | |
ef18374f KH |
1249 | { |
1250 | char *p0, *p1; | |
9331887d KH |
1251 | int len = strlen (name); |
1252 | char *copy; | |
ef18374f | 1253 | |
ec6fe57c KH |
1254 | if (len == 0) |
1255 | return -1; | |
ef18374f KH |
1256 | /* It is assured that (name[0] && name[0] != '-'). */ |
1257 | if (name[0] == ':') | |
1258 | p0 = name; | |
1259 | else | |
1260 | { | |
ec6fe57c KH |
1261 | Lisp_Object family; |
1262 | double point_size; | |
1263 | ||
1264 | for (p0 = name + 1; *p0 && (*p0 != '-' && *p0 != ':'); p0++) | |
1265 | if (*p0 == '\\' && p0[1]) | |
1266 | p0++; | |
35027d0c | 1267 | family = font_intern_prop (name, p0 - name); |
ec6fe57c | 1268 | if (*p0 == '-') |
ef18374f | 1269 | { |
ec6fe57c KH |
1270 | if (! isdigit (p0[1])) |
1271 | return -1; | |
1272 | point_size = strtod (p0 + 1, &p1); | |
1273 | if (*p1 && *p1 != ':') | |
1274 | return -1; | |
1275 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1276 | p0 = p1; | |
ef18374f | 1277 | } |
ec6fe57c | 1278 | ASET (font, FONT_FAMILY_INDEX, family); |
ef18374f | 1279 | } |
9331887d KH |
1280 | |
1281 | len -= p0 - name; | |
1282 | copy = alloca (len + 1); | |
1283 | if (! copy) | |
1284 | return -1; | |
1285 | name = copy; | |
51c01100 | 1286 | |
9331887d | 1287 | /* Now parse ":KEY=VAL" patterns. Store known keys and values in |
35027d0c KH |
1288 | extra, copy unknown ones to COPY. It is stored in extra slot by |
1289 | the key QCfc_unknown_spec. */ | |
ef18374f KH |
1290 | while (*p0) |
1291 | { | |
1292 | Lisp_Object key, val; | |
ec6fe57c | 1293 | int prop; |
ef18374f | 1294 | |
ec6fe57c | 1295 | for (p1 = p0 + 1; *p1 && *p1 != '=' && *p1 != ':'; p1++); |
9331887d | 1296 | if (*p1 != '=') |
ef18374f | 1297 | { |
9331887d | 1298 | /* Must be an enumerated value. */ |
35027d0c | 1299 | val = font_intern_prop (p0 + 1, p1 - p0 - 1); |
9331887d KH |
1300 | if (memcmp (p0 + 1, "light", 5) == 0 |
1301 | || memcmp (p0 + 1, "medium", 6) == 0 | |
1302 | || memcmp (p0 + 1, "demibold", 8) == 0 | |
1303 | || memcmp (p0 + 1, "bold", 4) == 0 | |
1304 | || memcmp (p0 + 1, "black", 5) == 0) | |
35027d0c | 1305 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); |
9331887d KH |
1306 | else if (memcmp (p0 + 1, "roman", 5) == 0 |
1307 | || memcmp (p0 + 1, "italic", 6) == 0 | |
1308 | || memcmp (p0 + 1, "oblique", 7) == 0) | |
35027d0c | 1309 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); |
9331887d KH |
1310 | else if (memcmp (p0 + 1, "charcell", 8) == 0 |
1311 | || memcmp (p0 + 1, "mono", 4) == 0 | |
1312 | || memcmp (p0 + 1, "proportional", 12) == 0) | |
1313 | { | |
35027d0c KH |
1314 | int spacing = (p0[1] == 'c' ? FONT_SPACING_CHARCELL |
1315 | : p0[1] == 'm' ? FONT_SPACING_MONO | |
1316 | : FONT_SPACING_PROPORTIONAL); | |
1317 | ASET (font, FONT_SPACING_INDEX, make_number (spacing)); | |
1318 | } | |
9331887d KH |
1319 | else |
1320 | { | |
1321 | /* unknown key */ | |
1322 | bcopy (p0, copy, p1 - p0); | |
1323 | copy += p1 - p0; | |
1324 | } | |
ef18374f KH |
1325 | } |
1326 | else | |
1327 | { | |
9331887d KH |
1328 | if (memcmp (p0 + 1, "pixelsize=", 10) == 0) |
1329 | prop = FONT_SIZE_INDEX; | |
1330 | else | |
1331 | { | |
35027d0c KH |
1332 | key = font_intern_prop (p0, p1 - p0); |
1333 | prop = get_font_prop_index (key); | |
9331887d KH |
1334 | } |
1335 | p0 = p1 + 1; | |
1336 | for (p1 = p0; *p1 && *p1 != ':'; p1++); | |
35027d0c | 1337 | val = font_intern_prop (p0, p1 - p0); |
ec6fe57c | 1338 | if (! NILP (val)) |
9331887d | 1339 | { |
35027d0c KH |
1340 | if (prop >= FONT_FOUNDRY_INDEX && prop < FONT_EXTRA_INDEX) |
1341 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); | |
1342 | else if (prop >= 0) | |
1343 | Ffont_put (font, key, val); | |
ec6fe57c | 1344 | else |
35027d0c KH |
1345 | bcopy (p0 - 1, copy, p1 - p0 + 1); |
1346 | copy += p1 - p0 + 1; | |
ef18374f KH |
1347 | } |
1348 | } | |
1349 | p0 = p1; | |
1350 | } | |
35027d0c KH |
1351 | if (name != copy) |
1352 | font_put_extra (font, QCfc_unknown_spec, | |
1353 | make_unibyte_string (name, copy - name)); | |
9ba6fd41 | 1354 | |
9331887d | 1355 | return 0; |
ef18374f KH |
1356 | } |
1357 | ||
1358 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1359 | NAME (NBYTES length), and return the name length. If | |
1360 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1361 | ||
1362 | int | |
1363 | font_unparse_fcname (font, pixel_size, name, nbytes) | |
1364 | Lisp_Object font; | |
1365 | int pixel_size; | |
1366 | char *name; | |
1367 | int nbytes; | |
1368 | { | |
35027d0c | 1369 | Lisp_Object tail, val; |
ec6fe57c | 1370 | int point_size; |
35027d0c | 1371 | int dpi, spacing, avgwidth; |
ec6fe57c | 1372 | int i, len = 1; |
ef18374f | 1373 | char *p; |
a9262bb8 | 1374 | Lisp_Object styles[3]; |
417a1b10 | 1375 | char *style_names[3] = { "weight", "slant", "width" }; |
35027d0c | 1376 | char work[256]; |
ef18374f | 1377 | |
ec6fe57c | 1378 | val = AREF (font, FONT_FAMILY_INDEX); |
35027d0c KH |
1379 | if (STRINGP (val)) |
1380 | len += SBYTES (val); | |
ec6fe57c KH |
1381 | |
1382 | val = AREF (font, FONT_SIZE_INDEX); | |
1383 | if (INTEGERP (val)) | |
ef18374f | 1384 | { |
ec6fe57c KH |
1385 | if (XINT (val) != 0) |
1386 | pixel_size = XINT (val); | |
1387 | point_size = -1; | |
1388 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1389 | } |
ec6fe57c | 1390 | else if (FLOATP (val)) |
ef18374f | 1391 | { |
ec6fe57c KH |
1392 | pixel_size = -1; |
1393 | point_size = (int) XFLOAT_DATA (val); | |
1394 | len += 11; /* for "-NUM" */ | |
ef18374f | 1395 | } |
ec6fe57c KH |
1396 | |
1397 | val = AREF (font, FONT_FOUNDRY_INDEX); | |
35027d0c | 1398 | if (STRINGP (val)) |
ef18374f | 1399 | /* ":foundry=NAME" */ |
35027d0c | 1400 | len += 9 + SBYTES (val); |
ec6fe57c | 1401 | |
35027d0c | 1402 | for (i = 0; i < 3; i++) |
a9262bb8 | 1403 | { |
35027d0c | 1404 | int this_len; |
ec6fe57c | 1405 | |
35027d0c KH |
1406 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
1407 | if (! NILP (styles[i])) | |
1408 | len += sprintf (work, ":%s=%s", style_names[i], | |
1409 | SDATA (SYMBOL_NAME (styles[i]))); | |
ec6fe57c | 1410 | } |
35027d0c KH |
1411 | |
1412 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
1413 | len += sprintf (work, ":dpi=%d", dpi); | |
1414 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
1415 | len += strlen (":spacing=100"); | |
1416 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1417 | len += strlen (":scalable=false"); /* or ":scalable=true" */ | |
1418 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
ec6fe57c | 1419 | { |
35027d0c KH |
1420 | Lisp_Object key = XCAR (XCAR (tail)), val = XCDR (XCAR (tail)); |
1421 | ||
1422 | len += SBYTES (SYMBOL_NAME (key)) + 1; /* for :KEY= */ | |
1423 | if (STRINGP (val)) | |
1424 | len += SBYTES (val); | |
1425 | else if (INTEGERP (val)) | |
1426 | len += sprintf (work, "%d", XINT (val)); | |
1427 | else if (SYMBOLP (val)) | |
1428 | len += (NILP (val) ? 5 : 4); /* for "false" or "true" */ | |
ec6fe57c KH |
1429 | } |
1430 | ||
ef18374f KH |
1431 | if (len > nbytes) |
1432 | return -1; | |
1433 | p = name; | |
1434 | if (! NILP (AREF (font, FONT_FAMILY_INDEX))) | |
35027d0c | 1435 | p += sprintf(p, "%s", SDATA (SYMBOL_NAME (AREF (font, FONT_FAMILY_INDEX)))); |
ec6fe57c KH |
1436 | if (point_size > 0) |
1437 | { | |
1438 | if (p == name) | |
1439 | p += sprintf (p, "%d", point_size); | |
1440 | else | |
1441 | p += sprintf (p, "-%d", point_size); | |
1442 | } | |
ef18374f KH |
1443 | else if (pixel_size > 0) |
1444 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
35027d0c | 1445 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
a9262bb8 KH |
1446 | p += sprintf (p, ":foundry=%s", |
1447 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1448 | for (i = 0; i < 3; i++) | |
35027d0c | 1449 | if (! NILP (styles[i])) |
a9262bb8 | 1450 | p += sprintf (p, ":%s=%s", style_names[i], |
35027d0c KH |
1451 | SDATA (SYMBOL_NAME (styles[i]))); |
1452 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
1453 | p += sprintf (p, ":dpi=%d", XINT (AREF (font, FONT_DPI_INDEX))); | |
1454 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
1455 | p += sprintf (p, ":spacing=%d", XINT (AREF (font, FONT_SPACING_INDEX))); | |
1456 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1457 | { | |
1458 | if (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0) | |
1459 | p += sprintf (p, ":scalable=true"); | |
1460 | else | |
1461 | p += sprintf (p, ":scalable=false"); | |
1462 | } | |
ef18374f KH |
1463 | return (p - name); |
1464 | } | |
1465 | ||
1466 | /* Parse NAME (null terminated) and store information in FONT | |
1467 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1468 | 0. Otherwise return -1. */ |
ef18374f KH |
1469 | |
1470 | static int | |
ec6fe57c | 1471 | font_parse_name (name, font) |
ef18374f KH |
1472 | char *name; |
1473 | Lisp_Object font; | |
ef18374f KH |
1474 | { |
1475 | if (name[0] == '-' || index (name, '*')) | |
e950d6f1 | 1476 | return font_parse_xlfd (name, font); |
ec6fe57c | 1477 | return font_parse_fcname (name, font); |
ef18374f KH |
1478 | } |
1479 | ||
35027d0c KH |
1480 | |
1481 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1482 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1483 | part. */ | |
45eb10fb | 1484 | |
c2f5bfd6 | 1485 | void |
35027d0c KH |
1486 | font_parse_family_registry (family, registry, font_spec) |
1487 | Lisp_Object family, registry, font_spec; | |
c2f5bfd6 | 1488 | { |
35027d0c KH |
1489 | int len; |
1490 | char *p0, *p1; | |
1491 | ||
1492 | if (! NILP (family)) | |
c2f5bfd6 | 1493 | { |
35027d0c KH |
1494 | CHECK_STRING (family); |
1495 | len = SBYTES (family); | |
1496 | p0 = (char *) SDATA (family); | |
1497 | p1 = index (p0, '-'); | |
1498 | if (p1) | |
c2f5bfd6 | 1499 | { |
35027d0c KH |
1500 | if (*p0 != '*' || p1 - p0 > 1) |
1501 | ASET (font_spec, FONT_FOUNDRY_INDEX, | |
1502 | font_intern_prop (p0, p1 - p0)); | |
1503 | p1++; | |
1504 | len -= p1 - p0; | |
1505 | ASET (font_spec, FONT_FAMILY_INDEX, font_intern_prop (p1, len)); | |
c2f5bfd6 | 1506 | } |
35027d0c KH |
1507 | else |
1508 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1509 | } |
35027d0c | 1510 | if (! NILP (registry)) |
c2f5bfd6 | 1511 | { |
35027d0c KH |
1512 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1513 | CHECK_STRING (registry); | |
1514 | len = SBYTES (registry); | |
1515 | p0 = (char *) SDATA (registry); | |
1516 | p1 = index (p0, '-'); | |
1517 | if (! p1) | |
c2f5bfd6 | 1518 | { |
35027d0c KH |
1519 | if (SDATA (registry)[len - 1] == '*') |
1520 | registry = concat2 (registry, build_string ("-*")); | |
1521 | else | |
1522 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1523 | } |
35027d0c KH |
1524 | registry = Fdowncase (registry); |
1525 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1526 | } |
1527 | } | |
1528 | ||
45eb10fb | 1529 | \f |
35027d0c KH |
1530 | /* This part (through the next ^L) is still experimental and not |
1531 | tested much. We may drastically change codes. */ | |
10d16101 | 1532 | |
45eb10fb | 1533 | /* OTF handler */ |
10d16101 | 1534 | |
e950d6f1 KH |
1535 | #define LGSTRING_HEADER_SIZE 6 |
1536 | #define LGSTRING_GLYPH_SIZE 8 | |
1537 | ||
1538 | static int | |
1539 | check_gstring (gstring) | |
1540 | Lisp_Object gstring; | |
1541 | { | |
1542 | Lisp_Object val; | |
1543 | int i, j; | |
1544 | ||
1545 | CHECK_VECTOR (gstring); | |
1546 | val = AREF (gstring, 0); | |
1547 | CHECK_VECTOR (val); | |
1548 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1549 | goto err; | |
1550 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1551 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1552 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1553 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1554 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1555 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1556 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1557 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1558 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1559 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1560 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 KH |
1561 | |
1562 | for (i = 0; i < LGSTRING_LENGTH (gstring); i++) | |
1563 | { | |
1564 | val = LGSTRING_GLYPH (gstring, i); | |
1565 | CHECK_VECTOR (val); | |
1566 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1567 | goto err; | |
f9ffa1ea | 1568 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1569 | break; |
f9ffa1ea SM |
1570 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1571 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1572 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1573 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1574 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1575 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1576 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1577 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1578 | { |
f9ffa1ea | 1579 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1580 | CHECK_VECTOR (val); |
1581 | if (ASIZE (val) < 3) | |
1582 | goto err; | |
1583 | for (j = 0; j < 3; j++) | |
1584 | CHECK_NUMBER (AREF (val, j)); | |
1585 | } | |
1586 | } | |
1587 | return i; | |
1588 | err: | |
1589 | error ("Invalid glyph-string format"); | |
1590 | return -1; | |
1591 | } | |
1592 | ||
cf385d93 KH |
1593 | static void |
1594 | check_otf_features (otf_features) | |
1595 | Lisp_Object otf_features; | |
1596 | { | |
35027d0c | 1597 | Lisp_Object val; |
cf385d93 KH |
1598 | |
1599 | CHECK_CONS (otf_features); | |
1600 | CHECK_SYMBOL (XCAR (otf_features)); | |
1601 | otf_features = XCDR (otf_features); | |
1602 | CHECK_CONS (otf_features); | |
1603 | CHECK_SYMBOL (XCAR (otf_features)); | |
1604 | otf_features = XCDR (otf_features); | |
1605 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1606 | { | |
1607 | CHECK_SYMBOL (Fcar (val)); | |
1608 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1609 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1610 | } | |
1611 | otf_features = XCDR (otf_features); | |
1612 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1613 | { | |
1614 | CHECK_SYMBOL (Fcar (val)); | |
1615 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1616 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1617 | } | |
1618 | } | |
1619 | ||
c2f5bfd6 KH |
1620 | #ifdef HAVE_LIBOTF |
1621 | #include <otf.h> | |
1622 | ||
733fd013 | 1623 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1624 | |
1625 | static Lisp_Object | |
1626 | otf_tag_symbol (tag) | |
1627 | OTF_Tag tag; | |
1628 | { | |
1629 | char name[5]; | |
1630 | ||
1631 | OTF_tag_name (tag, name); | |
1632 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1633 | } | |
1634 | ||
1635 | static OTF * | |
35027d0c KH |
1636 | otf_open (file) |
1637 | Lisp_Object file; | |
c2f5bfd6 | 1638 | { |
35027d0c | 1639 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1640 | OTF *otf; |
1641 | ||
1642 | if (! NILP (val)) | |
1643 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1644 | else | |
c2f5bfd6 | 1645 | { |
35027d0c | 1646 | otf = STRINGP (file) ? OTF_open ((char *) SDATA (file)) : NULL; |
733fd013 | 1647 | val = make_save_value (otf, 0); |
35027d0c | 1648 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1649 | } |
733fd013 | 1650 | return otf; |
c2f5bfd6 KH |
1651 | } |
1652 | ||
1653 | ||
1654 | /* Return a list describing which scripts/languages FONT supports by | |
1655 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1656 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1657 | |
1658 | Lisp_Object | |
1659 | font_otf_capability (font) | |
1660 | struct font *font; | |
1661 | { | |
1662 | OTF *otf; | |
1663 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1664 | int i; | |
1665 | ||
35027d0c | 1666 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1667 | if (! otf) |
1668 | return Qnil; | |
1669 | for (i = 0; i < 2; i++) | |
1670 | { | |
1671 | OTF_GSUB_GPOS *gsub_gpos; | |
1672 | Lisp_Object script_list = Qnil; | |
1673 | int j; | |
1674 | ||
1675 | if (OTF_get_features (otf, i == 0) < 0) | |
1676 | continue; | |
1677 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1678 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1679 | { | |
1680 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1681 | Lisp_Object langsys_list = Qnil; | |
1682 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1683 | int k; | |
1684 | ||
1685 | for (k = script->LangSysCount; k >= 0; k--) | |
1686 | { | |
1687 | OTF_LangSys *langsys; | |
1688 | Lisp_Object feature_list = Qnil; | |
1689 | Lisp_Object langsys_tag; | |
1690 | int l; | |
1691 | ||
e80e09b4 | 1692 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1693 | { |
1694 | langsys = &script->DefaultLangSys; | |
1695 | langsys_tag = Qnil; | |
1696 | } | |
1697 | else | |
1698 | { | |
1699 | langsys = script->LangSys + k; | |
1700 | langsys_tag | |
1701 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1702 | } | |
e80e09b4 | 1703 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1704 | { |
1705 | OTF_Feature *feature | |
1706 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1707 | Lisp_Object feature_tag | |
1708 | = otf_tag_symbol (feature->FeatureTag); | |
1709 | ||
1710 | feature_list = Fcons (feature_tag, feature_list); | |
1711 | } | |
1712 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1713 | langsys_list); | |
1714 | } | |
1715 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1716 | script_list); | |
1717 | } | |
1718 | ||
1719 | if (i == 0) | |
1720 | XSETCAR (capability, script_list); | |
1721 | else | |
1722 | XSETCDR (capability, script_list); | |
1723 | } | |
1724 | ||
1725 | return capability; | |
1726 | } | |
1727 | ||
733fd013 KH |
1728 | /* Parse OTF features in SPEC and write a proper features spec string |
1729 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1730 | assured that the sufficient memory has already allocated for | |
1731 | FEATURES. */ | |
1732 | ||
e80e09b4 | 1733 | static void |
733fd013 | 1734 | generate_otf_features (spec, features) |
c2f5bfd6 | 1735 | Lisp_Object spec; |
733fd013 | 1736 | char *features; |
c2f5bfd6 KH |
1737 | { |
1738 | Lisp_Object val; | |
35027d0c | 1739 | char *p; |
c2f5bfd6 KH |
1740 | int asterisk; |
1741 | ||
733fd013 | 1742 | p = features; |
e80e09b4 | 1743 | *p = '\0'; |
c2f5bfd6 KH |
1744 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1745 | { | |
1746 | val = XCAR (spec); | |
e80e09b4 KH |
1747 | CHECK_SYMBOL (val); |
1748 | if (p > features) | |
733fd013 | 1749 | *p++ = ','; |
c2f5bfd6 KH |
1750 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1751 | { | |
1752 | asterisk = 1; | |
e80e09b4 | 1753 | *p++ = '*'; |
c2f5bfd6 KH |
1754 | } |
1755 | else if (! asterisk) | |
e80e09b4 KH |
1756 | { |
1757 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1758 | p += sprintf (p, "%s", SDATA (val)); |
1759 | } | |
c2f5bfd6 | 1760 | else |
e80e09b4 KH |
1761 | { |
1762 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1763 | p += sprintf (p, "~%s", SDATA (val)); |
1764 | } | |
c2f5bfd6 | 1765 | } |
e80e09b4 KH |
1766 | if (CONSP (spec)) |
1767 | error ("OTF spec too long"); | |
1768 | } | |
1769 | ||
c2f5bfd6 | 1770 | |
733fd013 KH |
1771 | Lisp_Object |
1772 | font_otf_DeviceTable (device_table) | |
1773 | OTF_DeviceTable *device_table; | |
1774 | { | |
1775 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1776 | ||
1777 | return Fcons (make_number (len), | |
1778 | make_unibyte_string (device_table->DeltaValue, len)); | |
1779 | } | |
1780 | ||
1781 | Lisp_Object | |
1782 | font_otf_ValueRecord (value_format, value_record) | |
1783 | int value_format; | |
1784 | OTF_ValueRecord *value_record; | |
1785 | { | |
1786 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1787 | ||
1788 | if (value_format & OTF_XPlacement) | |
43c0454d | 1789 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 1790 | if (value_format & OTF_YPlacement) |
43c0454d | 1791 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 1792 | if (value_format & OTF_XAdvance) |
43c0454d | 1793 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 1794 | if (value_format & OTF_YAdvance) |
43c0454d | 1795 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
1796 | if (value_format & OTF_XPlaDevice) |
1797 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
1798 | if (value_format & OTF_YPlaDevice) | |
1799 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
1800 | if (value_format & OTF_XAdvDevice) | |
1801 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
1802 | if (value_format & OTF_YAdvDevice) | |
1803 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
1804 | return val; | |
1805 | } | |
1806 | ||
1807 | Lisp_Object | |
1808 | font_otf_Anchor (anchor) | |
1809 | OTF_Anchor *anchor; | |
1810 | { | |
1811 | Lisp_Object val; | |
1812 | ||
1813 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
1814 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
1815 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
1816 | if (anchor->AnchorFormat == 2) | |
1817 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
1818 | else | |
1819 | { | |
1820 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
1821 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
1822 | } | |
1823 | return val; | |
1824 | } | |
1825 | ||
c2f5bfd6 KH |
1826 | #endif /* HAVE_LIBOTF */ |
1827 | ||
e80e09b4 KH |
1828 | /* G-string (glyph string) handler */ |
1829 | ||
1830 | /* G-string is a vector of the form [HEADER GLYPH ...]. | |
1831 | See the docstring of `font-make-gstring' for more detail. */ | |
c2f5bfd6 KH |
1832 | |
1833 | struct font * | |
1701724c | 1834 | font_prepare_composition (cmp, f) |
c2f5bfd6 | 1835 | struct composition *cmp; |
1701724c | 1836 | FRAME_PTR f; |
c2f5bfd6 KH |
1837 | { |
1838 | Lisp_Object gstring | |
1839 | = AREF (XHASH_TABLE (composition_hash_table)->key_and_value, | |
1840 | cmp->hash_index * 2); | |
c2f5bfd6 | 1841 | |
35027d0c | 1842 | cmp->font = XFONT_OBJECT (LGSTRING_FONT (gstring)); |
1701724c KH |
1843 | cmp->glyph_len = LGSTRING_LENGTH (gstring); |
1844 | cmp->pixel_width = LGSTRING_WIDTH (gstring); | |
1845 | cmp->lbearing = LGSTRING_LBEARING (gstring); | |
1846 | cmp->rbearing = LGSTRING_RBEARING (gstring); | |
1847 | cmp->ascent = LGSTRING_ASCENT (gstring); | |
1848 | cmp->descent = LGSTRING_DESCENT (gstring); | |
1849 | cmp->width = cmp->pixel_width / FRAME_COLUMN_WIDTH (f); | |
1850 | if (cmp->width == 0) | |
1851 | cmp->width = 1; | |
c2f5bfd6 | 1852 | |
1701724c | 1853 | return cmp->font; |
c2f5bfd6 KH |
1854 | } |
1855 | ||
c2f5bfd6 KH |
1856 | \f |
1857 | /* Font sorting */ | |
1858 | ||
35027d0c | 1859 | static unsigned font_score P_ ((Lisp_Object, Lisp_Object *, Lisp_Object)); |
c2f5bfd6 KH |
1860 | static int font_compare P_ ((const void *, const void *)); |
1861 | static Lisp_Object font_sort_entites P_ ((Lisp_Object, Lisp_Object, | |
35027d0c KH |
1862 | Lisp_Object, Lisp_Object, |
1863 | int)); | |
c2f5bfd6 KH |
1864 | |
1865 | /* We sort fonts by scoring each of them against a specified | |
1866 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
1867 | the value is, the closer the font is to the font-spec. | |
1868 | ||
35027d0c KH |
1869 | The highest 2 bits of the score is used for FAMILY. The exact |
1870 | match is 0, match with one of face-font-family-alternatives is | |
1871 | nonzero. | |
1872 | ||
1873 | The next 2 bits of the score is used for the atomic properties | |
1874 | FOUNDRY and ADSTYLE respectively. | |
c2f5bfd6 | 1875 | |
35027d0c | 1876 | Each 7-bit in the lower 28 bits are used for numeric properties |
c2f5bfd6 KH |
1877 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
1878 | ||
1879 | /* How many bits to shift to store the difference value of each font | |
35027d0c KH |
1880 | property in a score. Note that flots for FONT_TYPE_INDEX and |
1881 | FONT_REGISTRY_INDEX are not used. */ | |
c2f5bfd6 KH |
1882 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
1883 | ||
9331887d KH |
1884 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
1885 | The return value indicates how different ENTITY is compared with | |
35027d0c KH |
1886 | SPEC_PROP. |
1887 | ||
1888 | ALTERNATE_FAMILIES, if non-nil, is a pre-calculated list of | |
1889 | alternate family names for AREF (SPEC_PROP, FONT_FAMILY_INDEX). */ | |
c2f5bfd6 KH |
1890 | |
1891 | static unsigned | |
35027d0c | 1892 | font_score (entity, spec_prop, alternate_families) |
9331887d | 1893 | Lisp_Object entity, *spec_prop; |
35027d0c | 1894 | Lisp_Object alternate_families; |
c2f5bfd6 KH |
1895 | { |
1896 | unsigned score = 0; | |
1897 | int i; | |
c2f5bfd6 | 1898 | |
35027d0c KH |
1899 | /* Score three atomic fields. Maximum difference is 1 (family is 3). */ |
1900 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_ADSTYLE_INDEX; i++) | |
1901 | if (i != FONT_REGISTRY_INDEX | |
1902 | && ! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
1903 | { | |
1904 | Lisp_Object entity_str = SYMBOL_NAME (AREF (entity, i)); | |
1905 | Lisp_Object spec_str = SYMBOL_NAME (spec_prop[i]); | |
9ba6fd41 | 1906 | |
35027d0c KH |
1907 | if (strcasecmp (SDATA (spec_str), SDATA (entity_str))) |
1908 | { | |
1909 | if (i == FONT_FAMILY_INDEX && CONSP (alternate_families)) | |
1910 | { | |
1911 | int j; | |
1912 | ||
1913 | for (j = 1; CONSP (alternate_families); | |
1914 | j++, alternate_families = XCDR (alternate_families)) | |
1915 | { | |
1916 | spec_str = XCAR (alternate_families); | |
1917 | if (strcasecmp (SDATA (spec_str), SDATA (entity_str)) == 0) | |
1918 | break; | |
1919 | ||
1920 | } | |
1921 | if (j > 3) | |
1922 | j = 3; | |
1923 | score |= j << sort_shift_bits[i]; | |
1924 | } | |
1925 | else | |
1926 | score |= 1 << sort_shift_bits[i]; | |
1927 | } | |
1928 | } | |
c2f5bfd6 | 1929 | |
35027d0c KH |
1930 | /* Score three style numeric fields. Maximum difference is 127. */ |
1931 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
1932 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
1933 | { | |
1934 | int diff = (XINT (AREF (entity, i)) >> 8) - (XINT (spec_prop[i]) >> 8); | |
1935 | ||
1936 | if (diff < 0) | |
1937 | diff = - diff; | |
1938 | /* This is to prefer the exact symbol style. */ | |
1939 | diff++; | |
1940 | score |= min (diff, 127) << sort_shift_bits[i]; | |
1941 | } | |
1942 | ||
1943 | /* Score the size. Maximum difference is 127. */ | |
1944 | i = FONT_SIZE_INDEX; | |
1945 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i]) | |
1946 | && XINT (AREF (entity, i)) > 0) | |
1947 | { | |
1948 | /* We use the higher 6-bit for the actual size difference. The | |
1949 | lowest bit is set if the DPI is different. */ | |
1950 | int diff = XINT (spec_prop[i]) - XINT (AREF (entity, i)); | |
1951 | ||
1952 | if (diff < 0) | |
1953 | diff = - diff; | |
1954 | diff << 1; | |
1955 | if (! NILP (spec_prop[FONT_DPI_INDEX]) | |
1956 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
1957 | diff |= 1; | |
1958 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; | |
c2f5bfd6 KH |
1959 | } |
1960 | ||
1961 | return score; | |
1962 | } | |
1963 | ||
1964 | ||
1965 | /* The comparison function for qsort. */ | |
1966 | ||
1967 | static int | |
1968 | font_compare (d1, d2) | |
1969 | const void *d1, *d2; | |
1970 | { | |
35027d0c | 1971 | return (*(unsigned *) d1 - *(unsigned *) d2); |
c2f5bfd6 KH |
1972 | } |
1973 | ||
1974 | ||
1975 | /* The structure for elements being sorted by qsort. */ | |
1976 | struct font_sort_data | |
1977 | { | |
1978 | unsigned score; | |
1979 | Lisp_Object entity; | |
1980 | }; | |
1981 | ||
1982 | ||
1983 | /* Sort font-entities in vector VEC by closeness to font-spec PREFER. | |
1984 | If PREFER specifies a point-size, calculate the corresponding | |
9331887d KH |
1985 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
1986 | of FRAME before sorting. If SPEC is not nil, it is a font-spec to | |
35027d0c KH |
1987 | get the font-entities in VEC. |
1988 | ||
1989 | If BEST-ONLY is nonzero, return the best matching entity. Otherwise, | |
1990 | return the sorted VEC. */ | |
c2f5bfd6 KH |
1991 | |
1992 | static Lisp_Object | |
35027d0c | 1993 | font_sort_entites (vec, prefer, frame, spec, best_only) |
c2f5bfd6 | 1994 | Lisp_Object vec, prefer, frame, spec; |
35027d0c | 1995 | int best_only; |
c2f5bfd6 | 1996 | { |
9331887d | 1997 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
c2f5bfd6 KH |
1998 | int len, i; |
1999 | struct font_sort_data *data; | |
35027d0c KH |
2000 | Lisp_Object alternate_families = Qnil; |
2001 | unsigned best_score; | |
2002 | Lisp_Object best_entity; | |
c2f5bfd6 KH |
2003 | USE_SAFE_ALLOCA; |
2004 | ||
2005 | len = ASIZE (vec); | |
2006 | if (len <= 1) | |
35027d0c | 2007 | return best_only ? AREF (vec, 0) : vec; |
c2f5bfd6 | 2008 | |
35027d0c | 2009 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_DPI_INDEX; i++) |
9331887d | 2010 | prefer_prop[i] = AREF (prefer, i); |
c2f5bfd6 KH |
2011 | |
2012 | if (! NILP (spec)) | |
2013 | { | |
35027d0c KH |
2014 | /* A font driver may return a font that has a property value |
2015 | different from the value specified in SPEC if the driver | |
2016 | thinks they are the same. That happens, for instance, such a | |
2017 | generic family name as "serif" is specified. So, to ignore | |
2018 | such a difference, for all properties specified in SPEC, set | |
2019 | the corresponding properties in PREFER_PROP to nil. */ | |
2020 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) | |
9331887d | 2021 | if (! NILP (AREF (spec, i))) |
35027d0c | 2022 | prefer_prop[i] = Qnil; |
c2f5bfd6 KH |
2023 | } |
2024 | ||
9331887d KH |
2025 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2026 | prefer_prop[FONT_SIZE_INDEX] | |
2027 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
35027d0c KH |
2028 | if (! NILP (prefer_prop[FONT_FAMILY_INDEX])) |
2029 | { | |
2030 | alternate_families | |
2031 | = Fassoc_string (prefer_prop[FONT_FAMILY_INDEX], | |
2032 | Vface_alternative_font_family_alist, Qt); | |
2033 | if (CONSP (alternate_families)) | |
2034 | alternate_families = XCDR (alternate_families); | |
2035 | } | |
9331887d | 2036 | |
c2f5bfd6 KH |
2037 | /* Scoring and sorting. */ |
2038 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * len); | |
35027d0c KH |
2039 | best_score = 0xFFFFFFFF; |
2040 | best_entity = Qnil; | |
c2f5bfd6 KH |
2041 | for (i = 0; i < len; i++) |
2042 | { | |
2043 | data[i].entity = AREF (vec, i); | |
35027d0c KH |
2044 | data[i].score = font_score (data[i].entity, prefer_prop, |
2045 | alternate_families); | |
2046 | if (best_only && best_score > data[i].score) | |
2047 | { | |
2048 | best_score = data[i].score; | |
2049 | best_entity = data[i].entity; | |
2050 | if (best_score == 0) | |
2051 | break; | |
2052 | } | |
c2f5bfd6 | 2053 | } |
35027d0c KH |
2054 | if (NILP (best_entity)) |
2055 | { | |
2056 | qsort (data, len, sizeof *data, font_compare); | |
2057 | for (i = 0; i < len; i++) | |
2058 | ASET (vec, i, data[i].entity); | |
2059 | } | |
2060 | else | |
2061 | vec = best_entity; | |
c2f5bfd6 KH |
2062 | SAFE_FREE (); |
2063 | ||
2064 | return vec; | |
2065 | } | |
2066 | ||
2067 | \f | |
2068 | /* API of Font Service Layer. */ | |
2069 | ||
45eb10fb KH |
2070 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2071 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2072 | function with font_sort_order after setting up it. */ | |
2073 | ||
c2f5bfd6 KH |
2074 | void |
2075 | font_update_sort_order (order) | |
2076 | int *order; | |
2077 | { | |
35027d0c | 2078 | int i, shift_bits; |
c2f5bfd6 | 2079 | |
35027d0c | 2080 | for (i = 0, shift_bits = 21; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2081 | { |
2082 | int xlfd_idx = order[i]; | |
2083 | ||
2084 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2085 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2086 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2087 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2088 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2089 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2090 | else | |
2091 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2092 | } | |
2093 | } | |
2094 | ||
45eb10fb | 2095 | |
45eb10fb KH |
2096 | /* Check if ENTITY matches with the font specification SPEC. */ |
2097 | ||
ef18374f KH |
2098 | int |
2099 | font_match_p (spec, entity) | |
2100 | Lisp_Object spec, entity; | |
2101 | { | |
35027d0c KH |
2102 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
2103 | Lisp_Object alternate_families = Qnil; | |
2104 | int prefer_style[3]; | |
ef18374f KH |
2105 | int i; |
2106 | ||
35027d0c KH |
2107 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_SIZE_INDEX; i++) |
2108 | prefer_prop[i] = AREF (spec, i); | |
2109 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) | |
2110 | prefer_prop[FONT_SIZE_INDEX] | |
2111 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2112 | if (! NILP (prefer_prop[FONT_FAMILY_INDEX])) | |
2113 | { | |
2114 | alternate_families | |
2115 | = Fassoc_string (prefer_prop[FONT_FAMILY_INDEX], | |
2116 | Vface_alternative_font_family_alist, Qt); | |
2117 | if (CONSP (alternate_families)) | |
2118 | alternate_families = XCDR (alternate_families); | |
2119 | } | |
2120 | ||
2121 | return (font_score (entity, prefer_prop, alternate_families) == 0); | |
ef18374f KH |
2122 | } |
2123 | ||
45eb10fb | 2124 | |
35027d0c | 2125 | /* CHeck a lispy font object corresponding to FONT. */ |
45eb10fb | 2126 | |
35027d0c KH |
2127 | int |
2128 | font_check_object (font) | |
c2f5bfd6 KH |
2129 | struct font *font; |
2130 | { | |
2131 | Lisp_Object tail, elt; | |
2132 | ||
35027d0c | 2133 | for (tail = font->props[FONT_OBJLIST_INDEX]; CONSP (tail); |
c2f5bfd6 KH |
2134 | tail = XCDR (tail)) |
2135 | { | |
2136 | elt = XCAR (tail); | |
35027d0c KH |
2137 | if (font == XFONT_OBJECT (elt)) |
2138 | return 1; | |
c2f5bfd6 | 2139 | } |
35027d0c | 2140 | return 0; |
c2f5bfd6 KH |
2141 | } |
2142 | ||
ca4da08a KH |
2143 | \f |
2144 | /* Font cache | |
2145 | ||
2146 | Each font backend has the callback function get_cache, and it | |
2147 | returns a cons cell of which cdr part can be freely used for | |
2148 | caching fonts. The cons cell may be shared by multiple frames | |
2149 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2150 | ||
2151 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2152 | ||
2153 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2154 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2155 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2156 | ||
2157 | static void font_prepare_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2158 | static void font_finish_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2159 | static Lisp_Object font_get_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2160 | static void font_clear_cache P_ ((FRAME_PTR, Lisp_Object, | |
2161 | struct font_driver *)); | |
2162 | ||
2163 | static void | |
2164 | font_prepare_cache (f, driver) | |
2165 | FRAME_PTR f; | |
2166 | struct font_driver *driver; | |
2167 | { | |
2168 | Lisp_Object cache, val; | |
2169 | ||
2170 | cache = driver->get_cache (f); | |
2171 | val = XCDR (cache); | |
2172 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2173 | val = XCDR (val); | |
2174 | if (NILP (val)) | |
2175 | { | |
2176 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2177 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2178 | } | |
2179 | else | |
2180 | { | |
2181 | val = XCDR (XCAR (val)); | |
2182 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2183 | } | |
2184 | } | |
2185 | ||
43c0454d | 2186 | |
ca4da08a KH |
2187 | static void |
2188 | font_finish_cache (f, driver) | |
2189 | FRAME_PTR f; | |
2190 | struct font_driver *driver; | |
2191 | { | |
2192 | Lisp_Object cache, val, tmp; | |
2193 | ||
2194 | ||
2195 | cache = driver->get_cache (f); | |
2196 | val = XCDR (cache); | |
2197 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2198 | cache = val, val = XCDR (val); | |
2199 | xassert (! NILP (val)); | |
2200 | tmp = XCDR (XCAR (val)); | |
43c0454d | 2201 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2202 | if (XINT (XCAR (tmp)) == 0) |
2203 | { | |
2204 | font_clear_cache (f, XCAR (val), driver); | |
2205 | XSETCDR (cache, XCDR (val)); | |
2206 | } | |
ca4da08a KH |
2207 | } |
2208 | ||
43c0454d | 2209 | |
ca4da08a KH |
2210 | static Lisp_Object |
2211 | font_get_cache (f, driver) | |
2212 | FRAME_PTR f; | |
2213 | struct font_driver *driver; | |
2214 | { | |
2215 | Lisp_Object val = driver->get_cache (f); | |
2216 | Lisp_Object type = driver->type; | |
2217 | ||
2218 | xassert (CONSP (val)); | |
2219 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); | |
2220 | xassert (CONSP (val)); | |
2221 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ | |
2222 | val = XCDR (XCAR (val)); | |
2223 | return val; | |
2224 | } | |
2225 | ||
43c0454d KH |
2226 | static int num_fonts; |
2227 | ||
ca4da08a KH |
2228 | static void |
2229 | font_clear_cache (f, cache, driver) | |
2230 | FRAME_PTR f; | |
2231 | Lisp_Object cache; | |
2232 | struct font_driver *driver; | |
2233 | { | |
2234 | Lisp_Object tail, elt; | |
51c01100 | 2235 | |
ca4da08a KH |
2236 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2237 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2238 | { | |
2239 | elt = XCAR (tail); | |
2240 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
2241 | { | |
2242 | Lisp_Object vec = XCDR (elt); | |
2243 | int i; | |
2244 | ||
2245 | for (i = 0; i < ASIZE (vec); i++) | |
2246 | { | |
2247 | Lisp_Object entity = AREF (vec, i); | |
2248 | ||
2249 | if (EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
2250 | { | |
2251 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2252 | ||
2253 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2254 | { | |
2255 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2256 | struct font *font = XFONT_OBJECT (val); |
ca4da08a KH |
2257 | |
2258 | xassert (font && driver == font->driver); | |
2259 | driver->close (f, font); | |
43c0454d | 2260 | num_fonts--; |
ca4da08a KH |
2261 | } |
2262 | if (driver->free_entity) | |
2263 | driver->free_entity (entity); | |
2264 | } | |
2265 | } | |
2266 | } | |
2267 | } | |
2268 | XSETCDR (cache, Qnil); | |
2269 | } | |
2270 | \f | |
2271 | ||
c2f5bfd6 KH |
2272 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2273 | ||
35027d0c KH |
2274 | Lisp_Object |
2275 | font_delete_unmatched (list, spec, size) | |
2276 | Lisp_Object list, spec; | |
2277 | int size; | |
2278 | { | |
2279 | Lisp_Object entity, prev, tail; | |
2280 | enum font_property_index prop; | |
45eb10fb | 2281 | |
35027d0c KH |
2282 | for (tail = list, prev = Qnil; CONSP (tail); ) |
2283 | { | |
2284 | entity = XCAR (tail); | |
2285 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) | |
2286 | if (INTEGERP (AREF (spec, prop)) | |
2287 | && ((XINT (AREF (spec, prop)) >> 8) | |
2288 | != (XINT (AREF (entity, prop)) >> 8))) | |
2289 | prop = FONT_SPEC_MAX; | |
2290 | if (prop++ <= FONT_SIZE_INDEX | |
2291 | && size | |
2292 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2293 | { | |
2294 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2295 | |
35027d0c KH |
2296 | if (diff != 0 |
2297 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2298 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2299 | prop = FONT_SPEC_MAX; | |
2300 | } | |
2301 | if (prop < FONT_SPEC_MAX | |
2302 | && INTEGERP (AREF (spec, FONT_SPACING_INDEX)) | |
2303 | && ! EQ (AREF (spec, FONT_SPACING_INDEX), | |
2304 | AREF (entity, FONT_SPACING_INDEX))) | |
2305 | prop = FONT_SPEC_MAX; | |
2306 | if (prop < FONT_SPEC_MAX) | |
2307 | prev = tail, tail = XCDR (tail); | |
2308 | else if (NILP (prev)) | |
2309 | list = tail = XCDR (tail); | |
2310 | else | |
2311 | tail = XCDR (tail), XSETCDR (prev, tail); | |
2312 | } | |
2313 | return list; | |
2314 | } | |
2315 | ||
2316 | ||
2317 | /* Return a vector of font-entities matching with SPEC on FRAME. */ | |
2318 | ||
2319 | Lisp_Object | |
c2f5bfd6 KH |
2320 | font_list_entities (frame, spec) |
2321 | Lisp_Object frame, spec; | |
2322 | { | |
2323 | FRAME_PTR f = XFRAME (frame); | |
2324 | struct font_driver_list *driver_list = f->font_driver_list; | |
35027d0c KH |
2325 | Lisp_Object ftype, family, alternate_familes; |
2326 | Lisp_Object *vec; | |
2327 | int size; | |
2328 | int need_filtering = 0; | |
2329 | int n_family = 1; | |
c2f5bfd6 KH |
2330 | int i; |
2331 | ||
35027d0c | 2332 | xassert (FONT_SPEC_P (spec)); |
c2f5bfd6 KH |
2333 | |
2334 | family = AREF (spec, FONT_FAMILY_INDEX); | |
2335 | if (NILP (family)) | |
2336 | alternate_familes = Qnil; | |
2337 | else | |
2338 | { | |
35027d0c KH |
2339 | alternate_familes = Fassoc_string (family, |
2340 | Vface_alternative_font_family_alist, | |
2341 | Qt); | |
c2f5bfd6 KH |
2342 | if (! NILP (alternate_familes)) |
2343 | alternate_familes = XCDR (alternate_familes); | |
35027d0c | 2344 | n_family += XINT (Flength (alternate_familes)); |
c2f5bfd6 | 2345 | } |
a9262bb8 | 2346 | |
35027d0c KH |
2347 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2348 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2349 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2350 | size = font_pixel_size (f, spec); | |
2351 | else | |
2352 | size = 0; | |
2353 | ||
c2f5bfd6 | 2354 | ftype = AREF (spec, FONT_TYPE_INDEX); |
35027d0c KH |
2355 | for (i = 0; i <= FONT_REGISTRY_INDEX; i++) |
2356 | ASET (scratch_font_spec, i, AREF (spec, i)); | |
2357 | for (; i < FONT_EXTRA_INDEX; i++) | |
2358 | { | |
2359 | ASET (scratch_font_spec, i, Qnil); | |
2360 | if (! NILP (AREF (spec, i))) | |
2361 | need_filtering = 1; | |
2362 | } | |
2363 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); | |
2364 | ||
2365 | vec = alloca (sizeof (Lisp_Object) * num_font_drivers * n_family); | |
2366 | if (! vec) | |
2367 | return null_vector; | |
51c01100 | 2368 | |
c2f5bfd6 | 2369 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2370 | if (driver_list->on |
2371 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2372 | { |
ca4da08a | 2373 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2374 | Lisp_Object tail = alternate_familes; |
c2f5bfd6 | 2375 | |
c2f5bfd6 KH |
2376 | while (1) |
2377 | { | |
35027d0c | 2378 | Lisp_Object val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
ca4da08a | 2379 | |
35027d0c | 2380 | if (CONSP (val) && VECTORP (XCDR (val))) |
c2f5bfd6 KH |
2381 | val = XCDR (val); |
2382 | else | |
2383 | { | |
35027d0c KH |
2384 | Lisp_Object copy; |
2385 | ||
2386 | val = driver_list->driver->list (frame, scratch_font_spec); | |
2387 | if (! NILP (val) && need_filtering) | |
2388 | val = font_delete_unmatched (val, spec, size); | |
2389 | copy = Fcopy_font_spec (scratch_font_spec); | |
2390 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2391 | } |
35027d0c | 2392 | if (! NILP (val)) |
c2f5bfd6 KH |
2393 | { |
2394 | vec[i++] = val; | |
2395 | break; | |
2396 | } | |
2397 | if (NILP (tail)) | |
2398 | break; | |
35027d0c KH |
2399 | ASET (scratch_font_spec, FONT_FAMILY_INDEX, |
2400 | Fintern (XCAR (tail), Qnil)); | |
c2f5bfd6 KH |
2401 | tail = XCDR (tail); |
2402 | } | |
2403 | } | |
35027d0c | 2404 | |
c2f5bfd6 KH |
2405 | return (i > 0 ? Fvconcat (i, vec) : null_vector); |
2406 | } | |
2407 | ||
45eb10fb | 2408 | |
35027d0c KH |
2409 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2410 | nil, is an array of face's attributes, which specifies preferred | |
2411 | font-related attributes. */ | |
45eb10fb | 2412 | |
e950d6f1 | 2413 | static Lisp_Object |
35027d0c KH |
2414 | font_matching_entity (f, attrs, spec) |
2415 | FRAME_PTR f; | |
2416 | Lisp_Object *attrs, spec; | |
e950d6f1 | 2417 | { |
e950d6f1 KH |
2418 | struct font_driver_list *driver_list = f->font_driver_list; |
2419 | Lisp_Object ftype, size, entity; | |
35027d0c | 2420 | Lisp_Object frame; |
e950d6f1 | 2421 | |
35027d0c | 2422 | XSETFRAME (frame, f); |
e950d6f1 KH |
2423 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2424 | size = AREF (spec, FONT_SIZE_INDEX); | |
2425 | if (FLOATP (size)) | |
2426 | ASET (spec, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
2427 | entity = Qnil; | |
2428 | for (; driver_list; driver_list = driver_list->next) | |
2429 | if (driver_list->on | |
2430 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2431 | { | |
ca4da08a | 2432 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
e950d6f1 | 2433 | |
e950d6f1 | 2434 | ASET (spec, FONT_TYPE_INDEX, driver_list->driver->type); |
35027d0c KH |
2435 | entity = assoc_no_quit (spec, XCDR (cache)); |
2436 | if (CONSP (entity) && ! VECTORP (XCDR (entity))) | |
e950d6f1 KH |
2437 | entity = XCDR (entity); |
2438 | else | |
2439 | { | |
2440 | entity = driver_list->driver->match (frame, spec); | |
35027d0c KH |
2441 | XSETCDR (cache, Fcons (Fcons (Fcopy_font_spec (spec), entity), |
2442 | XCDR (cache))); | |
e950d6f1 KH |
2443 | } |
2444 | if (! NILP (entity)) | |
2445 | break; | |
2446 | } | |
2447 | ASET (spec, FONT_TYPE_INDEX, ftype); | |
2448 | ASET (spec, FONT_SIZE_INDEX, size); | |
2449 | return entity; | |
2450 | } | |
2451 | ||
45eb10fb KH |
2452 | |
2453 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2454 | opened font object. */ | |
2455 | ||
c2f5bfd6 KH |
2456 | static Lisp_Object |
2457 | font_open_entity (f, entity, pixel_size) | |
2458 | FRAME_PTR f; | |
2459 | Lisp_Object entity; | |
2460 | int pixel_size; | |
2461 | { | |
2462 | struct font_driver_list *driver_list; | |
43c0454d | 2463 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2464 | struct font *font; |
35027d0c | 2465 | int min_width; |
c2f5bfd6 | 2466 | |
35027d0c | 2467 | xassert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2468 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 KH |
2469 | if (XINT (size) != 0) |
2470 | pixel_size = XINT (size); | |
2471 | ||
2472 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); | |
2473 | objlist = XCDR (objlist)) | |
35027d0c KH |
2474 | if (XFONT_OBJECT (XCAR (objlist))->pixel_size == pixel_size) |
2475 | return XCAR (objlist); | |
2476 | ||
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; | |
c2f5bfd6 | 2483 | |
35027d0c | 2484 | font_object = driver_list->driver->open (f, entity, pixel_size); |
43c0454d | 2485 | if (NILP (font_object)) |
35027d0c KH |
2486 | return Qnil; |
2487 | ASET (entity, FONT_OBJLIST_INDEX, | |
2488 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
2489 | ASET (font_object, FONT_OBJLIST_INDEX, AREF (entity, FONT_OBJLIST_INDEX)); | |
2490 | num_fonts++; | |
2491 | ||
2492 | font = XFONT_OBJECT (font_object); | |
2493 | min_width = (font->min_width ? font->min_width | |
2494 | : font->average_width ? font->average_width | |
2495 | : font->space_width ? font->space_width | |
2496 | : 1); | |
2497 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; | |
2498 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2499 | { |
35027d0c KH |
2500 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
2501 | FRAME_SMALLEST_FONT_HEIGHT (f) = font->height; | |
2502 | fonts_changed_p = 1; | |
2503 | } | |
2504 | else | |
2505 | { | |
2506 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2507 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
2508 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > font->height) | |
2509 | FRAME_SMALLEST_FONT_HEIGHT (f) = font->height, fonts_changed_p = 1; | |
43c0454d | 2510 | } |
43c0454d KH |
2511 | |
2512 | return font_object; | |
c2f5bfd6 KH |
2513 | } |
2514 | ||
45eb10fb KH |
2515 | |
2516 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2517 | ||
c2f5bfd6 KH |
2518 | void |
2519 | font_close_object (f, font_object) | |
2520 | FRAME_PTR f; | |
2521 | Lisp_Object font_object; | |
2522 | { | |
35027d0c | 2523 | struct font *font = XFONT_OBJECT (font_object); |
10d16101 | 2524 | Lisp_Object objlist; |
c2f5bfd6 KH |
2525 | Lisp_Object tail, prev = Qnil; |
2526 | ||
35027d0c | 2527 | objlist = AREF (font_object, FONT_OBJLIST_INDEX); |
c2f5bfd6 KH |
2528 | for (prev = Qnil, tail = objlist; CONSP (tail); |
2529 | prev = tail, tail = XCDR (tail)) | |
2530 | if (EQ (font_object, XCAR (tail))) | |
2531 | { | |
35027d0c KH |
2532 | xassert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2533 | font->driver->close (f, font); | |
2534 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
10d16101 | 2535 | if (NILP (prev)) |
35027d0c | 2536 | ASET (font_object, FONT_OBJLIST_INDEX, XCDR (objlist)); |
10d16101 KH |
2537 | else |
2538 | XSETCDR (prev, XCDR (objlist)); | |
43c0454d | 2539 | num_fonts--; |
10d16101 | 2540 | return; |
c2f5bfd6 | 2541 | } |
10d16101 | 2542 | abort (); |
c2f5bfd6 KH |
2543 | } |
2544 | ||
45eb10fb | 2545 | |
1701724c KH |
2546 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2547 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2548 | |
c2f5bfd6 | 2549 | int |
1b834a8d | 2550 | font_has_char (f, font, c) |
c2f5bfd6 | 2551 | FRAME_PTR f; |
1b834a8d | 2552 | Lisp_Object font; |
c2f5bfd6 KH |
2553 | int c; |
2554 | { | |
1b834a8d | 2555 | struct font *fontp; |
c2f5bfd6 | 2556 | |
1b834a8d KH |
2557 | if (FONT_ENTITY_P (font)) |
2558 | { | |
2559 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2560 | struct font_driver_list *driver_list; | |
2561 | ||
2562 | for (driver_list = f->font_driver_list; | |
2563 | driver_list && ! EQ (driver_list->driver->type, type); | |
2564 | driver_list = driver_list->next); | |
2565 | if (! driver_list) | |
2566 | return 0; | |
2567 | if (! driver_list->driver->has_char) | |
2568 | return -1; | |
2569 | return driver_list->driver->has_char (font, c); | |
2570 | } | |
2571 | ||
2572 | xassert (FONT_OBJECT_P (font)); | |
35027d0c | 2573 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2574 | if (fontp->driver->has_char) |
2575 | { | |
35027d0c | 2576 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2577 | |
2578 | if (result >= 0) | |
2579 | return result; | |
2580 | } | |
2581 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2582 | } |
2583 | ||
45eb10fb KH |
2584 | |
2585 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2586 | ||
c2f5bfd6 KH |
2587 | unsigned |
2588 | font_encode_char (font_object, c) | |
2589 | Lisp_Object font_object; | |
2590 | int c; | |
2591 | { | |
35027d0c | 2592 | struct font *font; |
c2f5bfd6 | 2593 | |
35027d0c KH |
2594 | xassert (FONT_OBJECT_P (font_object)); |
2595 | font = XFONT_OBJECT (font_object); | |
c2f5bfd6 KH |
2596 | return font->driver->encode_char (font, c); |
2597 | } | |
2598 | ||
45eb10fb KH |
2599 | |
2600 | /* Return the name of FONT_OBJECT. */ | |
2601 | ||
ef18374f | 2602 | Lisp_Object |
c2f5bfd6 KH |
2603 | font_get_name (font_object) |
2604 | Lisp_Object font_object; | |
2605 | { | |
35027d0c | 2606 | Lisp_Object name; |
c2f5bfd6 | 2607 | |
35027d0c KH |
2608 | xassert (FONT_OBJECT_P (font_object)); |
2609 | return AREF (font_object, FONT_NAME_INDEX); | |
ef18374f KH |
2610 | } |
2611 | ||
45eb10fb KH |
2612 | |
2613 | /* Return the specification of FONT_OBJECT. */ | |
2614 | ||
ef18374f KH |
2615 | Lisp_Object |
2616 | font_get_spec (font_object) | |
2617 | Lisp_Object font_object; | |
2618 | { | |
35027d0c | 2619 | Lisp_Object spec = font_make_spec (); |
ef18374f KH |
2620 | int i; |
2621 | ||
2622 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
35027d0c KH |
2623 | ASET (spec, i, AREF (font_object, i)); |
2624 | ASET (spec, FONT_SIZE_INDEX, | |
2625 | make_number (XFONT_OBJECT (font_object)->pixel_size)); | |
ef18374f | 2626 | return spec; |
c2f5bfd6 KH |
2627 | } |
2628 | ||
35027d0c KH |
2629 | Lisp_Object |
2630 | font_spec_from_name (font_name) | |
2631 | Lisp_Object font_name; | |
2632 | { | |
2633 | Lisp_Object args[2]; | |
2634 | ||
2635 | args[0] = QCname; | |
2636 | args[1] = font_name; | |
2637 | return Ffont_spec (2, args); | |
2638 | } | |
2639 | ||
45eb10fb | 2640 | |
35027d0c KH |
2641 | void |
2642 | font_clear_prop (attrs, prop) | |
2643 | Lisp_Object *attrs; | |
2644 | enum font_property_index prop; | |
2645 | { | |
2646 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
2647 | Lisp_Object extra, prev; | |
45eb10fb | 2648 | |
35027d0c KH |
2649 | if (! FONTP (font)) |
2650 | return; | |
2651 | if (NILP (AREF (font, prop)) | |
2652 | && prop != FONT_FAMILY_INDEX && prop != FONT_FAMILY_INDEX) | |
2653 | return; | |
2654 | font = Fcopy_font_spec (font); | |
2655 | ASET (font, prop, Qnil); | |
2656 | if (prop == FONT_FAMILY_INDEX) | |
2657 | { | |
2658 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
2659 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); | |
2660 | ASET (font, FONT_SIZE_INDEX, Qnil); | |
2661 | ASET (font, FONT_DPI_INDEX, Qnil); | |
2662 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
2663 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
2664 | } | |
2665 | else if (prop == FONT_SIZE_INDEX) | |
2666 | { | |
2667 | ASET (font, FONT_DPI_INDEX, Qnil); | |
2668 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
2669 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
2670 | } | |
2671 | attrs[LFACE_FONT_INDEX] = font; | |
2672 | } | |
2673 | ||
2674 | void | |
2675 | font_update_lface (f, attrs) | |
2676 | FRAME_PTR f; | |
2677 | Lisp_Object *attrs; | |
c2f5bfd6 | 2678 | { |
35027d0c KH |
2679 | Lisp_Object spec, val; |
2680 | int n; | |
2681 | ||
2682 | spec = attrs[LFACE_FONT_INDEX]; | |
2683 | if (! FONT_SPEC_P (spec)) | |
2684 | return; | |
2685 | ||
2686 | if (! NILP (AREF (spec, FONT_FOUNDRY_INDEX)) | |
2687 | || ! NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
2688 | { | |
2689 | Lisp_Object family; | |
2690 | ||
2691 | if (NILP (AREF (spec, FONT_FOUNDRY_INDEX))) | |
2692 | family = AREF (spec, FONT_FAMILY_INDEX); | |
2693 | else if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
2694 | family = concat2 (SYMBOL_NAME (AREF (spec, FONT_FOUNDRY_INDEX)), | |
2695 | build_string ("-*")); | |
2696 | else | |
2697 | family = concat3 (SYMBOL_NAME (AREF (spec, FONT_FOUNDRY_INDEX)), | |
2698 | build_string ("-"), | |
2699 | SYMBOL_NAME (AREF (spec, FONT_FAMILY_INDEX))); | |
2700 | attrs[LFACE_FAMILY_INDEX] = family; | |
2701 | } | |
2702 | if (! NILP (AREF (spec, FONT_WEIGHT_INDEX))) | |
2703 | attrs[LFACE_WEIGHT_INDEX] = FONT_WEIGHT_FOR_FACE (spec); | |
2704 | if (! NILP (AREF (spec, FONT_SLANT_INDEX))) | |
2705 | attrs[LFACE_SLANT_INDEX] = FONT_SLANT_FOR_FACE (spec);; | |
2706 | if (! NILP (AREF (spec, FONT_WIDTH_INDEX))) | |
2707 | attrs[LFACE_SWIDTH_INDEX] = FONT_WIDTH_FOR_FACE (spec); | |
2708 | if (! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
2709 | { | |
2710 | int point; | |
2711 | ||
2712 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) | |
2713 | { | |
2714 | Lisp_Object val; | |
2715 | int dpi = f->resy; | |
2716 | ||
2717 | val = Ffont_get (spec, QCdpi); | |
2718 | if (! NILP (val)) | |
2719 | dpi = XINT (val); | |
2720 | point = PIXEL_TO_POINT (XINT (AREF (spec, FONT_SIZE_INDEX)) * 10, | |
2721 | dpi); | |
2722 | } | |
2723 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2724 | point = XFLOAT_DATA (AREF (spec, FONT_SIZE_INDEX)) * 10; | |
2725 | attrs[LFACE_HEIGHT_INDEX] = make_number (point); | |
2726 | } | |
c2f5bfd6 KH |
2727 | } |
2728 | ||
45eb10fb | 2729 | |
35027d0c KH |
2730 | /* Return a font-entity satisfying SPEC and best matching with face's |
2731 | font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 2732 | character that the entity must support. */ |
c2f5bfd6 KH |
2733 | |
2734 | Lisp_Object | |
35027d0c | 2735 | font_find_for_lface (f, attrs, spec, c) |
c2f5bfd6 | 2736 | FRAME_PTR f; |
35027d0c | 2737 | Lisp_Object *attrs; |
c2f5bfd6 | 2738 | Lisp_Object spec; |
1701724c | 2739 | int c; |
c2f5bfd6 | 2740 | { |
35027d0c KH |
2741 | Lisp_Object frame, entities, val, props[FONT_REGISTRY_INDEX + 1] ; |
2742 | Lisp_Object size; | |
6c8ec042 | 2743 | int i, result; |
c2f5bfd6 | 2744 | |
35027d0c | 2745 | if (c >= 0) |
fe5ddfbc | 2746 | { |
1701724c | 2747 | Lisp_Object registry = AREF (spec, FONT_REGISTRY_INDEX); |
35027d0c | 2748 | struct charset *encoding, *repertory; |
1701724c | 2749 | |
35027d0c KH |
2750 | if (font_registry_charsets (registry, &encoding, &repertory) < 0) |
2751 | return Qnil; | |
2752 | if (repertory) | |
1701724c | 2753 | { |
35027d0c | 2754 | if (ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) |
1701724c | 2755 | return Qnil; |
35027d0c KH |
2756 | /* Any font of this registry support C. So, let's |
2757 | suppress the further checking. */ | |
2758 | c = -1; | |
1701724c | 2759 | } |
35027d0c KH |
2760 | else if (c > encoding->max_char) |
2761 | return Qnil; | |
c2f5bfd6 KH |
2762 | } |
2763 | ||
35027d0c KH |
2764 | XSETFRAME (frame, f); |
2765 | size = AREF (spec, FONT_SIZE_INDEX); | |
2766 | ASET (spec, FONT_SIZE_INDEX, Qnil); | |
2767 | entities = font_list_entities (frame, spec); | |
2768 | ASET (spec, FONT_SIZE_INDEX, size); | |
fe5ddfbc KH |
2769 | if (ASIZE (entities) == 0) |
2770 | return Qnil; | |
35027d0c KH |
2771 | if (ASIZE (entities) == 1) |
2772 | { | |
2773 | if (c < 0) | |
2774 | return AREF (entities, 0); | |
2775 | } | |
2776 | else | |
c2f5bfd6 | 2777 | { |
fe5ddfbc | 2778 | /* Sort fonts by properties specified in LFACE. */ |
ec6fe57c | 2779 | Lisp_Object prefer = scratch_font_prefer; |
9331887d | 2780 | double pt; |
35027d0c KH |
2781 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
2782 | ASET (prefer, i, AREF (spec, i)); | |
2783 | if (NILP (AREF (prefer, FONT_FAMILY_INDEX))) | |
2784 | font_parse_family_registry (attrs[LFACE_FAMILY_INDEX], Qnil, prefer); | |
2785 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
2786 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
2787 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
2788 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2789 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
2790 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2791 | if (INTEGERP (size)) | |
2792 | ASET (prefer, FONT_SIZE_INDEX, size); | |
2793 | else if (FLOATP (size)) | |
2794 | ASET (prefer, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
2795 | else | |
2796 | { | |
2797 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
2798 | int pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
2799 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
2800 | } | |
2801 | ASET (spec, FONT_SIZE_INDEX, Qnil); | |
2802 | entities = font_sort_entites (entities, prefer, frame, spec, c < 0); | |
2803 | ASET (spec, FONT_SIZE_INDEX, size); | |
c2f5bfd6 | 2804 | } |
1701724c | 2805 | if (c < 0) |
35027d0c | 2806 | return entities; |
45eb10fb | 2807 | |
35027d0c KH |
2808 | for (i = 0; i < ASIZE (entities); i++) |
2809 | { | |
2810 | int j; | |
2811 | ||
2812 | val = AREF (entities, i); | |
2813 | if (i > 0) | |
2814 | { | |
2815 | for (j = FONT_FOUNDRY_INDEX; j <= FONT_REGISTRY_INDEX; j++) | |
2816 | if (! EQ (AREF (val, j), props[j])) | |
2817 | break; | |
2818 | if (j > FONT_REGISTRY_INDEX) | |
2819 | continue; | |
2820 | } | |
2821 | for (j = FONT_FOUNDRY_INDEX; j <= FONT_REGISTRY_INDEX; j++) | |
2822 | props[j] = AREF (val, j); | |
2823 | result = font_has_char (f, val, c); | |
2824 | if (result > 0) | |
2825 | return val; | |
2826 | if (result == 0) | |
2827 | return Qnil; | |
2828 | val = font_open_for_lface (f, val, attrs, spec); | |
2829 | if (NILP (val)) | |
2830 | continue; | |
2831 | result = font_has_char (f, val, c); | |
2832 | font_close_object (f, val); | |
2833 | if (result > 0) | |
2834 | return AREF (entities, i); | |
2835 | } | |
1701724c KH |
2836 | return Qnil; |
2837 | } | |
45eb10fb KH |
2838 | |
2839 | ||
c2f5bfd6 | 2840 | Lisp_Object |
35027d0c | 2841 | font_open_for_lface (f, entity, attrs, spec) |
c2f5bfd6 | 2842 | FRAME_PTR f; |
c2f5bfd6 | 2843 | Lisp_Object entity; |
35027d0c | 2844 | Lisp_Object *attrs; |
733fd013 | 2845 | Lisp_Object spec; |
c2f5bfd6 | 2846 | { |
9331887d | 2847 | int size; |
c2f5bfd6 | 2848 | |
733fd013 KH |
2849 | if (FONT_SPEC_P (spec) && INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2850 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2851 | else | |
2852 | { | |
35027d0c | 2853 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); |
733fd013 KH |
2854 | |
2855 | pt /= 10; | |
2856 | size = POINT_TO_PIXEL (pt, f->resy); | |
2857 | } | |
c2f5bfd6 KH |
2858 | return font_open_entity (f, entity, size); |
2859 | } | |
2860 | ||
45eb10fb | 2861 | |
35027d0c KH |
2862 | /* Find a font satisfying SPEC and best matching with face's |
2863 | attributes in ATTRS on FRAME, and return the opened | |
2864 | font-object. */ | |
45eb10fb | 2865 | |
35027d0c KH |
2866 | Lisp_Object |
2867 | font_load_for_lface (f, attrs, spec) | |
c2f5bfd6 | 2868 | FRAME_PTR f; |
35027d0c | 2869 | Lisp_Object *attrs, spec; |
c2f5bfd6 | 2870 | { |
35027d0c | 2871 | Lisp_Object entity; |
ef18374f | 2872 | |
35027d0c KH |
2873 | entity = font_find_for_lface (f, attrs, spec, -1); |
2874 | if (NILP (entity)) | |
ef18374f | 2875 | { |
35027d0c KH |
2876 | /* No font is listed for SPEC, but each font-backend may have |
2877 | the different criteria about "font matching". So, try | |
2878 | it. */ | |
2879 | entity = font_matching_entity (f, attrs, spec); | |
2880 | if (NILP (entity)) | |
2881 | return Qnil; | |
c2f5bfd6 | 2882 | } |
35027d0c | 2883 | return font_open_for_lface (f, entity, attrs, spec); |
c2f5bfd6 KH |
2884 | } |
2885 | ||
45eb10fb KH |
2886 | |
2887 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
2888 | ||
c2f5bfd6 KH |
2889 | void |
2890 | font_prepare_for_face (f, face) | |
2891 | FRAME_PTR f; | |
2892 | struct face *face; | |
2893 | { | |
35027d0c KH |
2894 | if (face->font->driver->prepare_face) |
2895 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
2896 | } |
2897 | ||
45eb10fb KH |
2898 | |
2899 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
2900 | ||
c2f5bfd6 KH |
2901 | void |
2902 | font_done_for_face (f, face) | |
2903 | FRAME_PTR f; | |
2904 | struct face *face; | |
2905 | { | |
35027d0c KH |
2906 | if (face->font->driver->done_face) |
2907 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
2908 | face->extra = NULL; |
2909 | } | |
2910 | ||
45eb10fb KH |
2911 | |
2912 | /* Open a font best matching with NAME on frame F. If no proper font | |
2913 | is found, return Qnil. */ | |
2914 | ||
c2f5bfd6 KH |
2915 | Lisp_Object |
2916 | font_open_by_name (f, name) | |
2917 | FRAME_PTR f; | |
2918 | char *name; | |
2919 | { | |
ef18374f | 2920 | Lisp_Object args[2]; |
e950d6f1 | 2921 | Lisp_Object spec, prefer, size, entity, entity_list; |
c2f5bfd6 | 2922 | Lisp_Object frame; |
a9262bb8 | 2923 | int i; |
ef18374f | 2924 | int pixel_size; |
c2f5bfd6 KH |
2925 | |
2926 | XSETFRAME (frame, f); | |
a9262bb8 | 2927 | |
ef18374f KH |
2928 | args[0] = QCname; |
2929 | args[1] = make_unibyte_string (name, strlen (name)); | |
2930 | spec = Ffont_spec (2, args); | |
a9262bb8 | 2931 | prefer = scratch_font_prefer; |
35027d0c KH |
2932 | for (i = 0; i < FONT_SPEC_MAX; i++) |
2933 | { | |
2934 | ASET (prefer, i, AREF (spec, i)); | |
2935 | if (NILP (AREF (prefer, i)) | |
2936 | && i >= FONT_WEIGHT_INDEX && i <= FONT_WIDTH_INDEX) | |
2937 | FONT_SET_STYLE (prefer, i, make_number (100)); | |
2938 | } | |
a9262bb8 KH |
2939 | size = AREF (spec, FONT_SIZE_INDEX); |
2940 | if (NILP (size)) | |
2941 | pixel_size = 0; | |
35027d0c | 2942 | else |
ef18374f | 2943 | { |
35027d0c KH |
2944 | if (INTEGERP (size)) |
2945 | pixel_size = XINT (size); | |
2946 | else /* FLOATP (size) */ | |
2947 | { | |
2948 | double pt = XFLOAT_DATA (size); | |
a9262bb8 | 2949 | |
35027d0c KH |
2950 | pixel_size = POINT_TO_PIXEL (pt, f->resy); |
2951 | } | |
2952 | if (pixel_size == 0) | |
2953 | ASET (spec, FONT_SIZE_INDEX, Qnil); | |
ef18374f | 2954 | } |
a9262bb8 | 2955 | if (pixel_size == 0) |
ef18374f | 2956 | { |
9331887d | 2957 | pixel_size = POINT_TO_PIXEL (12.0, f->resy); |
a9262bb8 | 2958 | size = make_number (pixel_size); |
35027d0c | 2959 | ASET (prefer, FONT_SIZE_INDEX, size); |
ef18374f | 2960 | } |
9331887d KH |
2961 | if (NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
2962 | ASET (spec, FONT_REGISTRY_INDEX, Qiso8859_1); | |
a9262bb8 | 2963 | |
e950d6f1 KH |
2964 | entity_list = Flist_fonts (spec, frame, make_number (1), prefer); |
2965 | if (NILP (entity_list)) | |
35027d0c | 2966 | entity = font_matching_entity (f, NULL, spec); |
e950d6f1 KH |
2967 | else |
2968 | entity = XCAR (entity_list); | |
2969 | return (NILP (entity) | |
a9262bb8 | 2970 | ? Qnil |
e950d6f1 | 2971 | : font_open_entity (f, entity, pixel_size)); |
c2f5bfd6 KH |
2972 | } |
2973 | ||
2974 | ||
2975 | /* Register font-driver DRIVER. This function is used in two ways. | |
2976 | ||
417a1b10 KH |
2977 | The first is with frame F non-NULL. In this case, make DRIVER |
2978 | available (but not yet activated) on F. All frame creaters | |
2979 | (e.g. Fx_create_frame) must call this function at least once with | |
2980 | an available font-driver. | |
c2f5bfd6 KH |
2981 | |
2982 | The second is with frame F NULL. In this case, DRIVER is globally | |
2983 | registered in the variable `font_driver_list'. All font-driver | |
2984 | implementations must call this function in its syms_of_XXXX | |
2985 | (e.g. syms_of_xfont). */ | |
2986 | ||
2987 | void | |
2988 | register_font_driver (driver, f) | |
2989 | struct font_driver *driver; | |
2990 | FRAME_PTR f; | |
2991 | { | |
2992 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
2993 | struct font_driver_list *prev, *list; | |
2994 | ||
2995 | if (f && ! driver->draw) | |
43a1d19b | 2996 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
2997 | SDATA (SYMBOL_NAME (driver->type))); |
2998 | ||
2999 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3000 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3001 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3002 | ||
3003 | list = malloc (sizeof (struct font_driver_list)); | |
417a1b10 | 3004 | list->on = 0; |
c2f5bfd6 KH |
3005 | list->driver = driver; |
3006 | list->next = NULL; | |
3007 | if (prev) | |
3008 | prev->next = list; | |
3009 | else if (f) | |
3010 | f->font_driver_list = list; | |
3011 | else | |
3012 | font_driver_list = list; | |
3013 | num_font_drivers++; | |
3014 | } | |
3015 | ||
45eb10fb | 3016 | |
c2f5bfd6 KH |
3017 | /* Free font-driver list on frame F. It doesn't free font-drivers |
3018 | themselves. */ | |
3019 | ||
3020 | void | |
3021 | free_font_driver_list (f) | |
3022 | FRAME_PTR f; | |
3023 | { | |
3024 | while (f->font_driver_list) | |
3025 | { | |
3026 | struct font_driver_list *next = f->font_driver_list->next; | |
3027 | ||
3028 | free (f->font_driver_list); | |
3029 | f->font_driver_list = next; | |
3030 | } | |
3031 | } | |
3032 | ||
45eb10fb | 3033 | |
f697fff0 | 3034 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3035 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3036 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3037 | |
ca4da08a KH |
3038 | A caller must free all realized faces if any in advance. The |
3039 | return value is a list of font backends actually made used on | |
3040 | F. */ | |
e950d6f1 KH |
3041 | |
3042 | Lisp_Object | |
3043 | font_update_drivers (f, new_drivers) | |
417a1b10 KH |
3044 | FRAME_PTR f; |
3045 | Lisp_Object new_drivers; | |
417a1b10 KH |
3046 | { |
3047 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
3048 | struct font_driver_list *list; |
3049 | ||
f697fff0 KH |
3050 | for (list = f->font_driver_list; list; list = list->next) |
3051 | if (list->on) | |
3052 | { | |
ca4da08a KH |
3053 | if (! EQ (new_drivers, Qt) |
3054 | && NILP (Fmemq (list->driver->type, new_drivers))) | |
3055 | { | |
3056 | if (list->driver->end_for_frame) | |
3057 | list->driver->end_for_frame (f); | |
3058 | font_finish_cache (f, list->driver); | |
3059 | list->on = 0; | |
3060 | } | |
f697fff0 | 3061 | } |
ca4da08a | 3062 | else |
e950d6f1 | 3063 | { |
ca4da08a KH |
3064 | if (EQ (new_drivers, Qt) |
3065 | || ! NILP (Fmemq (list->driver->type, new_drivers))) | |
3066 | { | |
3067 | if (! list->driver->start_for_frame | |
3068 | || list->driver->start_for_frame (f) == 0) | |
3069 | { | |
3070 | font_prepare_cache (f, list->driver); | |
3071 | list->on = 1; | |
3072 | active_drivers = nconc2 (active_drivers, | |
3073 | Fcons (list->driver->type, Qnil)); | |
3074 | } | |
3075 | } | |
e950d6f1 | 3076 | } |
417a1b10 | 3077 | |
e950d6f1 | 3078 | return active_drivers; |
417a1b10 KH |
3079 | } |
3080 | ||
f697fff0 KH |
3081 | int |
3082 | font_put_frame_data (f, driver, data) | |
3083 | FRAME_PTR f; | |
3084 | struct font_driver *driver; | |
3085 | void *data; | |
3086 | { | |
3087 | struct font_data_list *list, *prev; | |
3088 | ||
3089 | for (prev = NULL, list = f->font_data_list; list; | |
3090 | prev = list, list = list->next) | |
3091 | if (list->driver == driver) | |
3092 | break; | |
3093 | if (! data) | |
3094 | { | |
3095 | if (list) | |
3096 | { | |
3097 | if (prev) | |
3098 | prev->next = list->next; | |
3099 | else | |
3100 | f->font_data_list = list->next; | |
3101 | free (list); | |
3102 | } | |
3103 | return 0; | |
3104 | } | |
3105 | ||
3106 | if (! list) | |
3107 | { | |
3108 | list = malloc (sizeof (struct font_data_list)); | |
3109 | if (! list) | |
3110 | return -1; | |
3111 | list->driver = driver; | |
3112 | list->next = f->font_data_list; | |
3113 | f->font_data_list = list; | |
3114 | } | |
3115 | list->data = data; | |
3116 | return 0; | |
3117 | } | |
3118 | ||
3119 | ||
3120 | void * | |
3121 | font_get_frame_data (f, driver) | |
3122 | FRAME_PTR f; | |
3123 | struct font_driver *driver; | |
3124 | { | |
3125 | struct font_data_list *list; | |
3126 | ||
3127 | for (list = f->font_data_list; list; list = list->next) | |
3128 | if (list->driver == driver) | |
3129 | break; | |
3130 | if (! list) | |
3131 | return NULL; | |
3132 | return list->data; | |
3133 | } | |
3134 | ||
417a1b10 | 3135 | |
45eb10fb | 3136 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3137 | POS in window W. If STRING is non-nil, it is a string containing C |
3138 | at index POS. If C is negative, get C from the current buffer or | |
3139 | STRING. */ | |
45eb10fb | 3140 | |
10d16101 | 3141 | Lisp_Object |
e3ee0340 | 3142 | font_at (c, pos, face, w, string) |
10d16101 KH |
3143 | int c; |
3144 | EMACS_INT pos; | |
3145 | struct face *face; | |
3146 | struct window *w; | |
e3ee0340 | 3147 | Lisp_Object string; |
10d16101 KH |
3148 | { |
3149 | FRAME_PTR f; | |
e3ee0340 | 3150 | int multibyte; |
35027d0c | 3151 | Lisp_Object font_object; |
e3ee0340 KH |
3152 | |
3153 | if (c < 0) | |
3154 | { | |
3155 | if (NILP (string)) | |
3156 | { | |
3157 | multibyte = ! NILP (current_buffer->enable_multibyte_characters); | |
3158 | if (multibyte) | |
3159 | { | |
3160 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3161 | ||
3162 | c = FETCH_CHAR (pos_byte); | |
3163 | } | |
3164 | else | |
3165 | c = FETCH_BYTE (pos); | |
3166 | } | |
3167 | else | |
3168 | { | |
3169 | unsigned char *str; | |
3170 | ||
3171 | multibyte = STRING_MULTIBYTE (string); | |
3172 | if (multibyte) | |
3173 | { | |
3174 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3175 | ||
3176 | str = SDATA (string) + pos_byte; | |
3177 | c = STRING_CHAR (str, 0); | |
3178 | } | |
3179 | else | |
3180 | c = SDATA (string)[pos]; | |
3181 | } | |
3182 | } | |
10d16101 KH |
3183 | |
3184 | f = XFRAME (w->frame); | |
1385a806 KH |
3185 | if (! FRAME_WINDOW_P (f)) |
3186 | return Qnil; | |
10d16101 KH |
3187 | if (! face) |
3188 | { | |
e3ee0340 | 3189 | int face_id; |
0f8b27ea | 3190 | EMACS_INT endptr; |
e3ee0340 KH |
3191 | |
3192 | if (STRINGP (string)) | |
3193 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3194 | DEFAULT_FACE_ID, 0); |
3195 | else | |
e3ee0340 | 3196 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
10d16101 KH |
3197 | pos + 100, 0); |
3198 | face = FACE_FROM_ID (f, face_id); | |
3199 | } | |
e3ee0340 KH |
3200 | if (multibyte) |
3201 | { | |
3202 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3203 | face = FACE_FROM_ID (f, face_id); | |
3204 | } | |
35027d0c | 3205 | if (! face->font) |
10d16101 | 3206 | return Qnil; |
35027d0c KH |
3207 | |
3208 | xassert (font_check_object ((struct font *) face->font)); | |
3209 | XSETFONT (font_object, face->font); | |
3210 | return font_object; | |
3211 | } | |
3212 | ||
3213 | ||
3214 | /* Check how many characters after POS (at most to LIMIT) can be | |
3215 | displayed by the same font. FACE is the face selected for the | |
3216 | character as POS on frame F. STRING, if not nil, is the string to | |
3217 | check instead of the current buffer. | |
3218 | ||
3219 | The return value is the position of the character that is displayed | |
3220 | by the differnt font than that of the character as POS. */ | |
3221 | ||
3222 | EMACS_INT | |
3223 | font_range (pos, limit, face, f, string) | |
3224 | EMACS_INT pos, limit; | |
3225 | struct face *face; | |
3226 | FRAME_PTR f; | |
3227 | Lisp_Object string; | |
3228 | { | |
3229 | int multibyte; | |
3230 | EMACS_INT pos_byte; | |
3231 | int c; | |
3232 | struct font *font; | |
3233 | int first = 1; | |
3234 | ||
3235 | if (NILP (string)) | |
3236 | { | |
3237 | multibyte = ! NILP (current_buffer->enable_multibyte_characters); | |
3238 | pos_byte = CHAR_TO_BYTE (pos); | |
3239 | } | |
3240 | else | |
3241 | { | |
3242 | multibyte = STRING_MULTIBYTE (string); | |
3243 | pos_byte = string_char_to_byte (string, pos); | |
3244 | } | |
3245 | ||
3246 | if (! multibyte) | |
3247 | /* All unibyte character are displayed by the same font. */ | |
3248 | return limit; | |
3249 | ||
3250 | while (pos < limit) | |
3251 | { | |
3252 | int face_id; | |
3253 | ||
3254 | if (NILP (string)) | |
3255 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3256 | else | |
3257 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
3258 | face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3259 | face = FACE_FROM_ID (f, face_id); | |
3260 | if (first) | |
3261 | { | |
3262 | font = face->font; | |
3263 | first = 0; | |
3264 | continue; | |
3265 | } | |
3266 | else if (font != face->font) | |
3267 | { | |
3268 | pos--; | |
3269 | break; | |
3270 | } | |
3271 | } | |
3272 | return pos; | |
10d16101 KH |
3273 | } |
3274 | ||
c2f5bfd6 KH |
3275 | \f |
3276 | /* Lisp API */ | |
3277 | ||
35027d0c | 3278 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3279 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3280 | Return nil otherwise. |
3281 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
3282 | which kind of font it is. It must be one of `font-spec', `font-entity' | |
3283 | `font-object'. */) | |
3284 | (object, extra_type) | |
3285 | Lisp_Object object, extra_type; | |
c2f5bfd6 | 3286 | { |
35027d0c KH |
3287 | if (NILP (extra_type)) |
3288 | return (FONTP (object) ? Qt : Qnil); | |
3289 | if (EQ (extra_type, Qfont_spec)) | |
3290 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3291 | if (EQ (extra_type, Qfont_entity)) | |
3292 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3293 | if (EQ (extra_type, Qfont_object)) | |
3294 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3295 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3296 | } |
3297 | ||
3298 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, | |
45eb10fb KH |
3299 | doc: /* Return a newly created font-spec with arguments as properties. |
3300 | ||
3301 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3302 | valid font property name listed below: | |
3303 | ||
3304 | `:family', `:weight', `:slant', `:width' | |
3305 | ||
3306 | They are the same as face attributes of the same name. See | |
51c01100 | 3307 | `set-face-attribute'. |
45eb10fb KH |
3308 | |
3309 | `:foundry' | |
3310 | ||
3311 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3312 | ||
3313 | `:adstyle' | |
3314 | ||
3315 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3316 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3317 | |
3318 | `:registry' | |
3319 | ||
3320 | VALUE must be a string or a symbol specifying the charset registry and | |
3321 | encoding of a font, e.g. ``iso8859-1''. | |
3322 | ||
3323 | `:size' | |
3324 | ||
3325 | VALUE must be a non-negative integer or a floating point number | |
35027d0c | 3326 | specifying the font size. It specifies the font size in pixels |
f697fff0 KH |
3327 | (if VALUE is an integer), or in points (if VALUE is a float). |
3328 | usage: (font-spec ARGS ...) */) | |
c2f5bfd6 KH |
3329 | (nargs, args) |
3330 | int nargs; | |
3331 | Lisp_Object *args; | |
3332 | { | |
35027d0c | 3333 | Lisp_Object spec = font_make_spec (); |
c2f5bfd6 KH |
3334 | int i; |
3335 | ||
3336 | for (i = 0; i < nargs; i += 2) | |
3337 | { | |
c2f5bfd6 KH |
3338 | Lisp_Object key = args[i], val = args[i + 1]; |
3339 | ||
35027d0c KH |
3340 | if (EQ (key, QCname)) |
3341 | { | |
3342 | CHECK_STRING (val); | |
3343 | font_parse_name ((char *) SDATA (val), spec); | |
3344 | font_put_extra (spec, key, val); | |
3345 | } | |
3346 | else if (EQ (key, QCfamily)) | |
3347 | { | |
3348 | CHECK_STRING (val); | |
3349 | font_parse_family_registry (val, Qnil, spec); | |
3350 | } | |
c2f5bfd6 | 3351 | else |
4485a28e | 3352 | { |
35027d0c KH |
3353 | int idx = get_font_prop_index (key); |
3354 | ||
3355 | if (idx >= 0) | |
ec6fe57c | 3356 | { |
35027d0c KH |
3357 | val = font_prop_validate (idx, Qnil, val); |
3358 | if (idx < FONT_EXTRA_INDEX) | |
3359 | ASET (spec, idx, val); | |
3360 | else | |
3361 | font_put_extra (spec, key, val); | |
ec6fe57c | 3362 | } |
35027d0c KH |
3363 | else |
3364 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3365 | } |
e950d6f1 | 3366 | } |
c2f5bfd6 KH |
3367 | return spec; |
3368 | } | |
3369 | ||
35027d0c KH |
3370 | DEFUN ("copy-font-spec", Fcopy_font_spec, Scopy_font_spec, 1, 1, 0, |
3371 | doc: /* Return a copy of FONT as a font-spec. */) | |
3372 | (font) | |
3373 | Lisp_Object font; | |
3374 | { | |
3375 | Lisp_Object new_spec, tail, extra; | |
3376 | int i; | |
3377 | ||
3378 | CHECK_FONT (font); | |
3379 | new_spec = font_make_spec (); | |
3380 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3381 | ASET (new_spec, i, AREF (font, i)); | |
3382 | extra = Qnil; | |
3383 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3384 | { | |
3385 | if (! EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3386 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3387 | } | |
3388 | ASET (new_spec, FONT_EXTRA_INDEX, extra); | |
3389 | return new_spec; | |
3390 | } | |
3391 | ||
3392 | DEFUN ("merge-font-spec", Fmerge_font_spec, Smerge_font_spec, 2, 2, 0, | |
3393 | doc: /* Merge font-specs FROM and TO, and return a new font-spec. | |
3394 | Every specified properties in FROM override the corresponding | |
3395 | properties in TO. */) | |
3396 | (from, to) | |
3397 | Lisp_Object from, to; | |
3398 | { | |
3399 | Lisp_Object extra, tail; | |
3400 | int i; | |
3401 | ||
3402 | CHECK_FONT (from); | |
3403 | CHECK_FONT (to); | |
3404 | to = Fcopy_font_spec (to); | |
3405 | for (i = 0; i < FONT_EXTRA_INDEX; i++) | |
3406 | ASET (to, i, AREF (from, i)); | |
3407 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3408 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3409 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3410 | { | |
3411 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3412 | ||
3413 | if (! NILP (slot)) | |
3414 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3415 | else | |
3416 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3417 | } | |
3418 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3419 | return to; | |
3420 | } | |
c2f5bfd6 KH |
3421 | |
3422 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, | |
45eb10fb | 3423 | doc: /* Return the value of FONT's property KEY. |
e950d6f1 | 3424 | FONT is a font-spec, a font-entity, or a font-object. */) |
45eb10fb KH |
3425 | (font, key) |
3426 | Lisp_Object font, key; | |
c2f5bfd6 | 3427 | { |
35027d0c | 3428 | int idx; |
c2f5bfd6 | 3429 | |
35027d0c KH |
3430 | CHECK_FONT (font); |
3431 | CHECK_SYMBOL (key); | |
e80e09b4 | 3432 | |
35027d0c KH |
3433 | idx = get_font_prop_index (key); |
3434 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
c2f5bfd6 | 3435 | return AREF (font, idx); |
35027d0c | 3436 | return Fcdr (Fassq (key, AREF (font, FONT_EXTRA_INDEX))); |
c2f5bfd6 KH |
3437 | } |
3438 | ||
3439 | ||
3440 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, | |
51c01100 | 3441 | doc: /* Set one property of FONT-SPEC: give property PROP value VAL. */) |
c2f5bfd6 KH |
3442 | (font_spec, prop, val) |
3443 | Lisp_Object font_spec, prop, val; | |
3444 | { | |
35027d0c | 3445 | int idx; |
c2f5bfd6 KH |
3446 | Lisp_Object extra, slot; |
3447 | ||
3448 | CHECK_FONT_SPEC (font_spec); | |
35027d0c KH |
3449 | idx = get_font_prop_index (prop); |
3450 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
3451 | { | |
3452 | if (idx == FONT_FAMILY_INDEX | |
3453 | && STRINGP (val)) | |
3454 | font_parse_family_registry (val, Qnil, font_spec); | |
3455 | else | |
3456 | ASET (font_spec, idx, font_prop_validate (idx, Qnil, val)); | |
3457 | } | |
c2f5bfd6 | 3458 | else |
35027d0c | 3459 | font_put_extra (font_spec, prop, font_prop_validate (0, prop, val)); |
c2f5bfd6 KH |
3460 | return val; |
3461 | } | |
3462 | ||
3463 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, | |
3464 | doc: /* List available fonts matching FONT-SPEC on the current frame. | |
3465 | Optional 2nd argument FRAME specifies the target frame. | |
3466 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
3467 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
3468 | control the order of the returned list. Fonts are sorted by | |
3469 | how they are close to PREFER. */) | |
c2f5bfd6 KH |
3470 | (font_spec, frame, num, prefer) |
3471 | Lisp_Object font_spec, frame, num, prefer; | |
3472 | { | |
3473 | Lisp_Object vec, list, tail; | |
3474 | int n = 0, i, len; | |
3475 | ||
3476 | if (NILP (frame)) | |
3477 | frame = selected_frame; | |
3478 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 3479 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
3480 | if (! NILP (num)) |
3481 | { | |
3482 | CHECK_NUMBER (num); | |
3483 | n = XINT (num); | |
3484 | if (n <= 0) | |
3485 | return Qnil; | |
3486 | } | |
3487 | if (! NILP (prefer)) | |
35027d0c | 3488 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 KH |
3489 | |
3490 | vec = font_list_entities (frame, font_spec); | |
3491 | len = ASIZE (vec); | |
3492 | if (len == 0) | |
3493 | return Qnil; | |
3494 | if (len == 1) | |
3495 | return Fcons (AREF (vec, 0), Qnil); | |
3496 | ||
3497 | if (! NILP (prefer)) | |
35027d0c | 3498 | vec = font_sort_entites (vec, prefer, frame, font_spec, 0); |
c2f5bfd6 KH |
3499 | |
3500 | list = tail = Fcons (AREF (vec, 0), Qnil); | |
3501 | if (n == 0 || n > len) | |
3502 | n = len; | |
3503 | for (i = 1; i < n; i++) | |
3504 | { | |
3505 | Lisp_Object val = Fcons (AREF (vec, i), Qnil); | |
3506 | ||
3507 | XSETCDR (tail, val); | |
3508 | tail = val; | |
3509 | } | |
3510 | return list; | |
3511 | } | |
3512 | ||
35027d0c | 3513 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 3514 | doc: /* List available font families on the current frame. |
51c01100 | 3515 | Optional argument FRAME specifies the target frame. */) |
c2f5bfd6 KH |
3516 | (frame) |
3517 | Lisp_Object frame; | |
3518 | { | |
3519 | FRAME_PTR f; | |
3520 | struct font_driver_list *driver_list; | |
3521 | Lisp_Object list; | |
3522 | ||
3523 | if (NILP (frame)) | |
3524 | frame = selected_frame; | |
3525 | CHECK_LIVE_FRAME (frame); | |
3526 | f = XFRAME (frame); | |
3527 | list = Qnil; | |
3528 | for (driver_list = f->font_driver_list; driver_list; | |
3529 | driver_list = driver_list->next) | |
3530 | if (driver_list->driver->list_family) | |
3531 | { | |
3532 | Lisp_Object val = driver_list->driver->list_family (frame); | |
3533 | ||
3534 | if (NILP (list)) | |
3535 | list = val; | |
3536 | else | |
3537 | { | |
3538 | Lisp_Object tail = list; | |
3539 | ||
3540 | for (; CONSP (val); val = XCDR (val)) | |
3541 | if (NILP (Fmemq (XCAR (val), tail))) | |
3542 | list = Fcons (XCAR (val), list); | |
3543 | } | |
3544 | } | |
3545 | return list; | |
3546 | } | |
3547 | ||
3548 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
3549 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
3550 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
3551 | (font_spec, frame) | |
3552 | Lisp_Object font_spec, frame; | |
3553 | { | |
3554 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
3555 | ||
3556 | if (CONSP (val)) | |
3557 | val = XCAR (val); | |
3558 | return val; | |
3559 | } | |
3560 | ||
3561 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 1, 0, | |
3562 | doc: /* Return XLFD name of FONT. | |
3563 | FONT is a font-spec, font-entity, or font-object. | |
3564 | If the name is too long for XLFD (maximum 255 chars), return nil. */) | |
3565 | (font) | |
3566 | Lisp_Object font; | |
3567 | { | |
3568 | char name[256]; | |
3569 | int pixel_size = 0; | |
3570 | ||
35027d0c KH |
3571 | CHECK_FONT (font); |
3572 | ||
3573 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 3574 | { |
35027d0c | 3575 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 3576 | |
35027d0c KH |
3577 | if (STRINGP (font_name) |
3578 | && SDATA (font_name)[0] == '-') | |
3579 | return font_name; | |
3580 | pixel_size = XFONT_OBJECT (font)->pixel_size; | |
c2f5bfd6 | 3581 | } |
c2f5bfd6 KH |
3582 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
3583 | return Qnil; | |
3584 | return build_string (name); | |
3585 | } | |
3586 | ||
3587 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
3588 | doc: /* Clear font cache. */) | |
3589 | () | |
3590 | { | |
3591 | Lisp_Object list, frame; | |
3592 | ||
3593 | FOR_EACH_FRAME (list, frame) | |
3594 | { | |
3595 | FRAME_PTR f = XFRAME (frame); | |
3596 | struct font_driver_list *driver_list = f->font_driver_list; | |
3597 | ||
3598 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
3599 | if (driver_list->on) |
3600 | { | |
ca4da08a KH |
3601 | Lisp_Object cache = driver_list->driver->get_cache (f); |
3602 | Lisp_Object val; | |
51c01100 | 3603 | |
ca4da08a | 3604 | val = XCDR (cache); |
43c0454d KH |
3605 | while (! NILP (val) |
3606 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 3607 | val = XCDR (val); |
43c0454d | 3608 | xassert (! NILP (val)); |
ca4da08a KH |
3609 | val = XCDR (XCAR (val)); |
3610 | if (XINT (XCAR (val)) == 0) | |
417a1b10 | 3611 | { |
ca4da08a KH |
3612 | font_clear_cache (f, XCAR (val), driver_list->driver); |
3613 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 3614 | } |
417a1b10 | 3615 | } |
c2f5bfd6 KH |
3616 | } |
3617 | ||
3618 | return Qnil; | |
3619 | } | |
3620 | ||
3621 | DEFUN ("internal-set-font-style-table", Finternal_set_font_style_table, | |
35027d0c KH |
3622 | Sinternal_set_font_style_table, 3, 3, 0, |
3623 | doc: /* Setup font style table from WEIGHT, SLANT, and WIDTH tables. | |
3624 | WEIGHT, SLANT, WIDTH must be `font-weight-table', `font-slant-table', | |
3625 | `font-width-table' respectivly. | |
3626 | This function is called after those tables are initialized. */) | |
3627 | (weight, slant, width) | |
3628 | Lisp_Object weight, slant, width; | |
c2f5bfd6 | 3629 | { |
35027d0c KH |
3630 | Lisp_Object tables[3]; |
3631 | int i; | |
51c01100 | 3632 | |
35027d0c KH |
3633 | tables[0] = weight, tables[1] = slant, tables[2] = width; |
3634 | ||
3635 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
3636 | /* In the following loop, we don't use XCAR and XCDR until assuring | |
3637 | the argument is a cons cell so that the error in the tables can | |
3638 | be detected. */ | |
3639 | for (i = 0; i < 3; i++) | |
c2f5bfd6 | 3640 | { |
35027d0c KH |
3641 | Lisp_Object tail, elt, list, val; |
3642 | ||
3643 | for (tail = tables[i], list = Qnil; CONSP (tail); tail = XCDR (tail)) | |
3644 | { | |
3645 | int numeric = -1; | |
3646 | ||
3647 | elt = Fcar (tail); | |
3648 | CHECK_SYMBOL (Fcar (elt)); | |
3649 | val = Fcons (XCAR (elt), Qnil); | |
3650 | elt = XCDR (elt); | |
3651 | CHECK_NATNUM (Fcar (elt)); | |
3652 | if (numeric >= XINT (XCAR (elt))) | |
3653 | error ("Numeric values not unique nor sorted in %s", | |
3654 | (i == 0 ? "font-weight-table" | |
3655 | : i == 1 ? "font-slant-table" | |
3656 | : "font-width-table")); | |
3657 | numeric = XINT (XCAR (elt)); | |
3658 | XSETCDR (val, XCAR (elt)); | |
3659 | list = Fcons (val, list); | |
3660 | for (elt = XCDR (elt); CONSP (elt); elt = XCDR (elt)) | |
3661 | { | |
3662 | val = XCAR (elt); | |
3663 | CHECK_SYMBOL (val); | |
3664 | list = Fcons (Fcons (XCAR (elt), make_number (numeric)), list); | |
3665 | } | |
3666 | } | |
3667 | list = Fnreverse (list); | |
3668 | ASET (font_style_table, i, Fvconcat (1, &list)); | |
c2f5bfd6 | 3669 | } |
35027d0c | 3670 | |
c2f5bfd6 KH |
3671 | return Qnil; |
3672 | } | |
51c01100 | 3673 | |
45eb10fb KH |
3674 | /* The following three functions are still expremental. */ |
3675 | ||
c2f5bfd6 | 3676 | DEFUN ("font-make-gstring", Ffont_make_gstring, Sfont_make_gstring, 2, 2, 0, |
e80e09b4 KH |
3677 | doc: /* Return a newly created g-string for FONT-OBJECT with NUM glyphs. |
3678 | FONT-OBJECT may be nil if it is not yet known. | |
3679 | ||
3680 | G-string is sequence of glyphs of a specific font, | |
3681 | and is a vector of this form: | |
3682 | [ HEADER GLYPH ... ] | |
3683 | HEADER is a vector of this form: | |
1701724c | 3684 | [FONT-OBJECT WIDTH LBEARING RBEARING ASCENT DESCENT] |
e80e09b4 | 3685 | where |
733fd013 | 3686 | FONT-OBJECT is a font-object for all glyphs in the g-string, |
1701724c | 3687 | WIDTH thry DESCENT are the metrics (in pixels) of the whole G-string. |
e80e09b4 | 3688 | GLYPH is a vector of this form: |
1701724c KH |
3689 | [ FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT |
3690 | [ [X-OFF Y-OFF WADJUST] | nil] ] | |
e80e09b4 KH |
3691 | where |
3692 | FROM-IDX and TO-IDX are used internally and should not be touched. | |
3693 | C is the character of the glyph. | |
3694 | CODE is the glyph-code of C in FONT-OBJECT. | |
1701724c | 3695 | WIDTH thry DESCENT are the metrics (in pixels) of the glyph. |
e80e09b4 | 3696 | X-OFF and Y-OFF are offests to the base position for the glyph. |
e80e09b4 | 3697 | WADJUST is the adjustment to the normal width of the glyph. */) |
c2f5bfd6 KH |
3698 | (font_object, num) |
3699 | Lisp_Object font_object, num; | |
3700 | { | |
3701 | Lisp_Object gstring, g; | |
3702 | int len; | |
3703 | int i; | |
3704 | ||
3705 | if (! NILP (font_object)) | |
3706 | CHECK_FONT_OBJECT (font_object); | |
3707 | CHECK_NATNUM (num); | |
3708 | ||
3709 | len = XINT (num) + 1; | |
3710 | gstring = Fmake_vector (make_number (len), Qnil); | |
3711 | g = Fmake_vector (make_number (6), Qnil); | |
3712 | ASET (g, 0, font_object); | |
3713 | ASET (gstring, 0, g); | |
3714 | for (i = 1; i < len; i++) | |
1701724c | 3715 | ASET (gstring, i, Fmake_vector (make_number (10), Qnil)); |
c2f5bfd6 KH |
3716 | return gstring; |
3717 | } | |
3718 | ||
3719 | DEFUN ("font-fill-gstring", Ffont_fill_gstring, Sfont_fill_gstring, 4, 5, 0, | |
51c01100 JB |
3720 | doc: /* Fill in glyph-string GSTRING by characters for FONT-OBJECT. |
3721 | START and END specify the region to extract characters. | |
3722 | If optional 5rd argument OBJECT is non-nil, it is a buffer or a string from | |
c2f5bfd6 KH |
3723 | where to extract characters. |
3724 | FONT-OBJECT may be nil if GSTRING already already contains one. */) | |
3725 | (gstring, font_object, start, end, object) | |
3726 | Lisp_Object gstring, font_object, start, end, object; | |
3727 | { | |
3728 | int len, i, c; | |
3729 | unsigned code; | |
3730 | struct font *font; | |
3731 | ||
3732 | CHECK_VECTOR (gstring); | |
3733 | if (NILP (font_object)) | |
10d16101 | 3734 | font_object = LGSTRING_FONT (gstring); |
35027d0c | 3735 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
3736 | |
3737 | if (STRINGP (object)) | |
3738 | { | |
3739 | const unsigned char *p; | |
3740 | ||
3741 | CHECK_NATNUM (start); | |
3742 | CHECK_NATNUM (end); | |
3743 | if (XINT (start) > XINT (end) | |
3744 | || XINT (end) > ASIZE (object) | |
10d16101 | 3745 | || XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
1701724c | 3746 | args_out_of_range_3 (object, start, end); |
c2f5bfd6 KH |
3747 | |
3748 | len = XINT (end) - XINT (start); | |
3749 | p = SDATA (object) + string_char_to_byte (object, XINT (start)); | |
3750 | for (i = 0; i < len; i++) | |
3751 | { | |
3752 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
2930d117 EZ |
3753 | /* Shut up GCC warning in comparison with |
3754 | MOST_POSITIVE_FIXNUM below. */ | |
3755 | EMACS_INT cod; | |
c2f5bfd6 KH |
3756 | |
3757 | c = STRING_CHAR_ADVANCE (p); | |
2930d117 EZ |
3758 | cod = code = font->driver->encode_char (font, c); |
3759 | if (cod > MOST_POSITIVE_FIXNUM || code == FONT_INVALID_CODE) | |
40fb53d6 | 3760 | break; |
1701724c KH |
3761 | LGLYPH_SET_FROM (g, i); |
3762 | LGLYPH_SET_TO (g, i); | |
3763 | LGLYPH_SET_CHAR (g, c); | |
3764 | LGLYPH_SET_CODE (g, code); | |
c2f5bfd6 KH |
3765 | } |
3766 | } | |
3767 | else | |
3768 | { | |
3769 | int pos, pos_byte; | |
3770 | ||
3771 | if (! NILP (object)) | |
3772 | Fset_buffer (object); | |
3773 | validate_region (&start, &end); | |
10d16101 | 3774 | if (XINT (end) - XINT (start) > LGSTRING_LENGTH (gstring)) |
c2f5bfd6 KH |
3775 | args_out_of_range (start, end); |
3776 | len = XINT (end) - XINT (start); | |
3777 | pos = XINT (start); | |
3778 | pos_byte = CHAR_TO_BYTE (pos); | |
3779 | for (i = 0; i < len; i++) | |
3780 | { | |
3781 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
2930d117 EZ |
3782 | /* Shut up GCC warning in comparison with |
3783 | MOST_POSITIVE_FIXNUM below. */ | |
3784 | EMACS_INT cod; | |
c2f5bfd6 KH |
3785 | |
3786 | FETCH_CHAR_ADVANCE (c, pos, pos_byte); | |
2930d117 EZ |
3787 | cod = code = font->driver->encode_char (font, c); |
3788 | if (cod > MOST_POSITIVE_FIXNUM || code == FONT_INVALID_CODE) | |
40fb53d6 | 3789 | break; |
1701724c KH |
3790 | LGLYPH_SET_FROM (g, i); |
3791 | LGLYPH_SET_TO (g, i); | |
3792 | LGLYPH_SET_CHAR (g, c); | |
3793 | LGLYPH_SET_CODE (g, code); | |
c2f5bfd6 KH |
3794 | } |
3795 | } | |
40fb53d6 | 3796 | for (; i < LGSTRING_LENGTH (gstring); i++) |
51c01100 | 3797 | LGSTRING_SET_GLYPH (gstring, i, Qnil); |
1701724c KH |
3798 | return Qnil; |
3799 | } | |
3800 | ||
3801 | DEFUN ("font-shape-text", Ffont_shape_text, Sfont_shape_text, 3, 4, 0, | |
3802 | doc: /* Shape text between FROM and TO by FONT-OBJECT. | |
3803 | If optional 4th argument STRING is non-nil, it is a string to shape, | |
3804 | and FROM and TO are indices to the string. | |
40fb53d6 KH |
3805 | The value is the end position of the text that can be shaped by |
3806 | FONT-OBJECT. */) | |
1701724c KH |
3807 | (from, to, font_object, string) |
3808 | Lisp_Object from, to, font_object, string; | |
3809 | { | |
3810 | struct font *font; | |
3811 | struct font_metrics metrics; | |
3812 | EMACS_INT start, end; | |
3813 | Lisp_Object gstring, n; | |
35027d0c | 3814 | int len, i; |
1701724c | 3815 | |
b876ea91 KH |
3816 | if (! FONT_OBJECT_P (font_object)) |
3817 | return Qnil; | |
35027d0c | 3818 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
3819 | if (! font->driver->shape) |
3820 | return Qnil; | |
3821 | ||
1701724c KH |
3822 | if (NILP (string)) |
3823 | { | |
3824 | validate_region (&from, &to); | |
3825 | start = XFASTINT (from); | |
3826 | end = XFASTINT (to); | |
3827 | modify_region (current_buffer, start, end, 0); | |
3828 | } | |
3829 | else | |
3830 | { | |
3831 | CHECK_STRING (string); | |
3832 | start = XINT (from); | |
3833 | end = XINT (to); | |
3834 | if (start < 0 || start > end || end > SCHARS (string)) | |
3835 | args_out_of_range_3 (string, from, to); | |
3836 | } | |
3837 | ||
40fb53d6 KH |
3838 | len = end - start; |
3839 | gstring = Ffont_make_gstring (font_object, make_number (len)); | |
1701724c | 3840 | Ffont_fill_gstring (gstring, font_object, from, to, string); |
51c01100 | 3841 | |
40fb53d6 KH |
3842 | /* Try at most three times with larger gstring each time. */ |
3843 | for (i = 0; i < 3; i++) | |
3844 | { | |
3845 | Lisp_Object args[2]; | |
3846 | ||
3847 | n = font->driver->shape (gstring); | |
3848 | if (INTEGERP (n)) | |
3849 | break; | |
3850 | args[0] = gstring; | |
3851 | args[1] = Fmake_vector (make_number (len), Qnil); | |
3852 | gstring = Fvconcat (2, args); | |
3853 | } | |
3854 | if (! INTEGERP (n) || XINT (n) == 0) | |
1701724c | 3855 | return Qnil; |
40fb53d6 KH |
3856 | len = XINT (n); |
3857 | ||
3858 | for (i = 0; i < len;) | |
10d16101 | 3859 | { |
1701724c | 3860 | Lisp_Object gstr; |
10d16101 | 3861 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); |
1701724c KH |
3862 | EMACS_INT this_from = LGLYPH_FROM (g); |
3863 | EMACS_INT this_to = LGLYPH_TO (g) + 1; | |
3864 | int j, k; | |
b2937119 | 3865 | int need_composition = 0; |
1701724c KH |
3866 | |
3867 | metrics.lbearing = LGLYPH_LBEARING (g); | |
3868 | metrics.rbearing = LGLYPH_RBEARING (g); | |
3869 | metrics.ascent = LGLYPH_ASCENT (g); | |
3870 | metrics.descent = LGLYPH_DESCENT (g); | |
3871 | if (NILP (LGLYPH_ADJUSTMENT (g))) | |
b2937119 KH |
3872 | { |
3873 | metrics.width = LGLYPH_WIDTH (g); | |
f9ffa1ea | 3874 | if (LGLYPH_CHAR (g) == 0 || metrics.width == 0) |
b2937119 KH |
3875 | need_composition = 1; |
3876 | } | |
1701724c KH |
3877 | else |
3878 | { | |
3879 | metrics.width = LGLYPH_WADJUST (g); | |
3880 | metrics.lbearing += LGLYPH_XOFF (g); | |
3881 | metrics.rbearing += LGLYPH_XOFF (g); | |
3882 | metrics.ascent -= LGLYPH_YOFF (g); | |
3883 | metrics.descent += LGLYPH_YOFF (g); | |
b2937119 | 3884 | need_composition = 1; |
1701724c | 3885 | } |
40fb53d6 | 3886 | for (j = i + 1; j < len; j++) |
1701724c KH |
3887 | { |
3888 | int x; | |
3889 | ||
3890 | g = LGSTRING_GLYPH (gstring, j); | |
3891 | if (this_from != LGLYPH_FROM (g)) | |
3892 | break; | |
b2937119 | 3893 | need_composition = 1; |
1701724c KH |
3894 | x = metrics.width + LGLYPH_LBEARING (g) + LGLYPH_XOFF (g); |
3895 | if (metrics.lbearing > x) | |
3896 | metrics.lbearing = x; | |
3897 | x = metrics.width + LGLYPH_RBEARING (g) + LGLYPH_XOFF (g); | |
3898 | if (metrics.rbearing < x) | |
3899 | metrics.rbearing = x; | |
3900 | x = LGLYPH_ASCENT (g) - LGLYPH_YOFF (g); | |
3901 | if (metrics.ascent < x) | |
3902 | metrics.ascent = x; | |
3903 | x = LGLYPH_DESCENT (g) - LGLYPH_YOFF (g); | |
3904 | if (metrics.descent < x) | |
3905 | metrics.descent = x; | |
3906 | if (NILP (LGLYPH_ADJUSTMENT (g))) | |
3907 | metrics.width += LGLYPH_WIDTH (g); | |
3908 | else | |
3909 | metrics.width += LGLYPH_WADJUST (g); | |
3910 | } | |
10d16101 | 3911 | |
b2937119 KH |
3912 | if (need_composition) |
3913 | { | |
3914 | gstr = Ffont_make_gstring (font_object, make_number (j - i)); | |
3915 | LGSTRING_SET_WIDTH (gstr, metrics.width); | |
3916 | LGSTRING_SET_LBEARING (gstr, metrics.lbearing); | |
3917 | LGSTRING_SET_RBEARING (gstr, metrics.rbearing); | |
3918 | LGSTRING_SET_ASCENT (gstr, metrics.ascent); | |
3919 | LGSTRING_SET_DESCENT (gstr, metrics.descent); | |
3920 | for (k = i; i < j; i++) | |
e8912e41 KH |
3921 | { |
3922 | Lisp_Object g = LGSTRING_GLYPH (gstring, i); | |
3923 | ||
3924 | LGLYPH_SET_FROM (g, LGLYPH_FROM (g) - this_from); | |
95d0a340 | 3925 | LGLYPH_SET_TO (g, LGLYPH_TO (g) - this_from); |
e8912e41 KH |
3926 | LGSTRING_SET_GLYPH (gstr, i - k, LGSTRING_GLYPH (gstring, i)); |
3927 | } | |
b2937119 KH |
3928 | from = make_number (start + this_from); |
3929 | to = make_number (start + this_to); | |
3930 | if (NILP (string)) | |
3931 | Fcompose_region_internal (from, to, gstr, Qnil); | |
3932 | else | |
3933 | Fcompose_string_internal (string, from, to, gstr, Qnil); | |
3934 | } | |
1701724c | 3935 | else |
b2937119 | 3936 | i = j; |
10d16101 | 3937 | } |
1701724c | 3938 | |
14065d35 | 3939 | return to; |
c2f5bfd6 KH |
3940 | } |
3941 | ||
733fd013 KH |
3942 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
3943 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. | |
51c01100 | 3944 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 3945 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
3946 | where |
3947 | SCRIPT is a symbol specifying a script tag of OpenType, | |
3948 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 3949 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
3950 | |
3951 | If LANGYS is nil, the default langsys is selected. | |
3952 | ||
51c01100 JB |
3953 | The features are applied in the order they appear in the list. The |
3954 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
3955 | list, and the remaining features are ignored. For instance, (vatu |
3956 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
3957 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
3958 | |
3959 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 3960 | the glyph-string GSTRING-IN. |
e80e09b4 | 3961 | |
51c01100 | 3962 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
3963 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
3964 | this case, the value is the number of produced glyphs. | |
3965 | ||
3966 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
3967 | the value is 0. | |
3968 | ||
51c01100 | 3969 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
3970 | produced in GSTRING-OUT, and the value is nil. |
3971 | ||
3972 | See the documentation of `font-make-gstring' for the format of | |
3973 | glyph-string. */) | |
733fd013 KH |
3974 | (otf_features, gstring_in, from, to, gstring_out, index) |
3975 | Lisp_Object otf_features, gstring_in, from, to, gstring_out, index; | |
e80e09b4 KH |
3976 | { |
3977 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
3978 | Lisp_Object val; |
3979 | struct font *font; | |
e80e09b4 KH |
3980 | int len, num; |
3981 | ||
733fd013 | 3982 | check_otf_features (otf_features); |
35027d0c KH |
3983 | CHECK_FONT_OBJECT (font_object); |
3984 | font = XFONT_OBJECT (font_object); | |
733fd013 | 3985 | if (! font->driver->otf_drive) |
e80e09b4 KH |
3986 | error ("Font backend %s can't drive OpenType GSUB table", |
3987 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
3988 | CHECK_CONS (otf_features); |
3989 | CHECK_SYMBOL (XCAR (otf_features)); | |
3990 | val = XCDR (otf_features); | |
3991 | CHECK_SYMBOL (XCAR (val)); | |
3992 | val = XCDR (otf_features); | |
3993 | if (! NILP (val)) | |
3994 | CHECK_CONS (val); | |
e80e09b4 KH |
3995 | len = check_gstring (gstring_in); |
3996 | CHECK_VECTOR (gstring_out); | |
3997 | CHECK_NATNUM (from); | |
3998 | CHECK_NATNUM (to); | |
3999 | CHECK_NATNUM (index); | |
4000 | ||
4001 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4002 | args_out_of_range_3 (from, to, make_number (len)); | |
4003 | if (XINT (index) >= ASIZE (gstring_out)) | |
4004 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4005 | num = font->driver->otf_drive (font, otf_features, |
4006 | gstring_in, XINT (from), XINT (to), | |
4007 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4008 | if (num < 0) |
4009 | return Qnil; | |
4010 | return make_number (num); | |
4011 | } | |
4012 | ||
e80e09b4 KH |
4013 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
4014 | 3, 3, 0, | |
4015 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4016 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4017 | in this format: |
4018 | (SCRIPT LANGSYS FEATURE ...) | |
4019 | See the documentation of `font-otf-gsub' for more detail. | |
4020 | ||
4021 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4022 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4023 | character code corresponding to the glyph or nil if there's no | |
4024 | corresponding character. */) | |
733fd013 KH |
4025 | (font_object, character, otf_features) |
4026 | Lisp_Object font_object, character, otf_features; | |
e80e09b4 KH |
4027 | { |
4028 | struct font *font; | |
4029 | Lisp_Object gstring_in, gstring_out, g; | |
4030 | Lisp_Object alternates; | |
4031 | int i, num; | |
4032 | ||
4033 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4034 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4035 | error ("Font backend %s can't drive OpenType GSUB table", |
4036 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4037 | CHECK_CHARACTER (character); |
733fd013 | 4038 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4039 | |
4040 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4041 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4042 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4043 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4044 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4045 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4046 | gstring_out = Ffont_make_gstring (font_object, |
4047 | make_number (ASIZE (gstring_out) * 2)); | |
4048 | alternates = Qnil; | |
4049 | for (i = 0; i < num; i++) | |
4050 | { | |
4051 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4052 | int c = LGLYPH_CHAR (g); |
4053 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4054 | |
4055 | alternates = Fcons (Fcons (make_number (code), | |
4056 | c > 0 ? make_number (c) : Qnil), | |
4057 | alternates); | |
4058 | } | |
4059 | return Fnreverse (alternates); | |
4060 | } | |
4061 | ||
c2f5bfd6 KH |
4062 | |
4063 | #ifdef FONT_DEBUG | |
4064 | ||
4065 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4066 | doc: /* Open FONT-ENTITY. */) | |
4067 | (font_entity, size, frame) | |
4068 | Lisp_Object font_entity; | |
4069 | Lisp_Object size; | |
4070 | Lisp_Object frame; | |
4071 | { | |
4072 | int isize; | |
4073 | ||
4074 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4075 | if (NILP (frame)) |
4076 | frame = selected_frame; | |
4077 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4078 | |
35027d0c KH |
4079 | if (NILP (size)) |
4080 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4081 | else | |
4082 | { | |
4083 | CHECK_NUMBER_OR_FLOAT (size); | |
4084 | if (FLOATP (size)) | |
4085 | isize = POINT_TO_PIXEL (- isize, XFRAME (frame)->resy); | |
4086 | else | |
4087 | isize = XINT (size); | |
4088 | if (isize == 0) | |
4089 | isize = 120; | |
4090 | } | |
c2f5bfd6 KH |
4091 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4092 | } | |
4093 | ||
4094 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4095 | doc: /* Close FONT-OBJECT. */) | |
4096 | (font_object, frame) | |
4097 | Lisp_Object font_object, frame; | |
4098 | { | |
4099 | CHECK_FONT_OBJECT (font_object); | |
4100 | if (NILP (frame)) | |
4101 | frame = selected_frame; | |
4102 | CHECK_LIVE_FRAME (frame); | |
4103 | font_close_object (XFRAME (frame), font_object); | |
4104 | return Qnil; | |
4105 | } | |
4106 | ||
4107 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4108 | doc: /* Return information about FONT-OBJECT. |
4109 | The value is a vector: | |
4110 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4111 | CAPABILITY ] |
e80e09b4 KH |
4112 | |
4113 | NAME is a string of the font name (or nil if the font backend doesn't | |
4114 | provide a name). | |
4115 | ||
4116 | FILENAME is a string of the font file (or nil if the font backend | |
4117 | doesn't provide a file name). | |
4118 | ||
4119 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4120 | ||
4121 | SIZE is a maximum advance width of the font in pixel. | |
4122 | ||
4123 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
4124 | pixel. | |
4125 | ||
e0708580 KH |
4126 | CAPABILITY is a list whose first element is a symbol representing the |
4127 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
4128 | remaining elements describes a detail of the font capability. | |
4129 | ||
4130 | If the font is OpenType font, the form of the list is | |
4131 | \(opentype GSUB GPOS) | |
4132 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4133 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4134 | lists of the format: | |
4135 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4136 | ||
4137 | If the font is not OpenType font, currently the length of the form is | |
4138 | one. | |
e80e09b4 KH |
4139 | |
4140 | SCRIPT is a symbol representing OpenType script tag. | |
4141 | ||
4142 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4143 | representing the default langsys. | |
4144 | ||
51c01100 | 4145 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4146 | |
51c01100 | 4147 | If the font is not OpenType font, CAPABILITY is nil. */) |
c2f5bfd6 KH |
4148 | (font_object) |
4149 | Lisp_Object font_object; | |
4150 | { | |
4151 | struct font *font; | |
4152 | Lisp_Object val; | |
4153 | ||
4154 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4155 | ||
4156 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4157 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4158 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4159 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4160 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4161 | ASET (val, 4, make_number (font->ascent)); |
4162 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4163 | ASET (val, 6, make_number (font->space_width)); |
4164 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4165 | if (font->driver->otf_capability) |
e0708580 | 4166 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4167 | return val; |
4168 | } | |
4169 | ||
4170 | DEFUN ("get-font-glyphs", Fget_font_glyphs, Sget_font_glyphs, 2, 2, 0, | |
4171 | doc: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING. | |
4172 | Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */) | |
4173 | (font_object, string) | |
4174 | Lisp_Object font_object, string; | |
4175 | { | |
4176 | struct font *font; | |
4177 | int i, len; | |
4178 | Lisp_Object vec; | |
4179 | ||
4180 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4181 | CHECK_STRING (string); | |
4182 | len = SCHARS (string); | |
4183 | vec = Fmake_vector (make_number (len), Qnil); | |
4184 | for (i = 0; i < len; i++) | |
4185 | { | |
4186 | Lisp_Object ch = Faref (string, make_number (i)); | |
4187 | Lisp_Object val; | |
4188 | int c = XINT (ch); | |
4189 | unsigned code; | |
2930d117 | 4190 | EMACS_INT cod; |
c2f5bfd6 KH |
4191 | struct font_metrics metrics; |
4192 | ||
2930d117 | 4193 | cod = code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4194 | if (code == FONT_INVALID_CODE) |
4195 | continue; | |
4196 | val = Fmake_vector (make_number (6), Qnil); | |
2930d117 | 4197 | if (cod <= MOST_POSITIVE_FIXNUM) |
c2f5bfd6 KH |
4198 | ASET (val, 0, make_number (code)); |
4199 | else | |
4200 | ASET (val, 0, Fcons (make_number (code >> 16), | |
4201 | make_number (code & 0xFFFF))); | |
51c01100 | 4202 | font->driver->text_extents (font, &code, 1, &metrics); |
c2f5bfd6 KH |
4203 | ASET (val, 1, make_number (metrics.lbearing)); |
4204 | ASET (val, 2, make_number (metrics.rbearing)); | |
4205 | ASET (val, 3, make_number (metrics.width)); | |
4206 | ASET (val, 4, make_number (metrics.ascent)); | |
4207 | ASET (val, 5, make_number (metrics.descent)); | |
4208 | ASET (vec, i, val); | |
4209 | } | |
4210 | return vec; | |
4211 | } | |
4212 | ||
ec6fe57c | 4213 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4214 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c KH |
4215 | FONT is a font-spec, font-entity, or font-object. */) |
4216 | (spec, font) | |
4217 | Lisp_Object spec, font; | |
4218 | { | |
4219 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4220 | CHECK_FONT (font); |
ec6fe57c KH |
4221 | |
4222 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4223 | } | |
4224 | ||
1701724c | 4225 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4226 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4227 | Optional second arg WINDOW, if non-nil, is a window displaying |
4228 | the current buffer. It defaults to the currently selected window. */) | |
1701724c KH |
4229 | (position, window, string) |
4230 | Lisp_Object position, window, string; | |
10d16101 KH |
4231 | { |
4232 | struct window *w; | |
e3ee0340 | 4233 | EMACS_INT pos; |
10d16101 | 4234 | |
1701724c KH |
4235 | if (NILP (string)) |
4236 | { | |
4237 | CHECK_NUMBER_COERCE_MARKER (position); | |
4238 | pos = XINT (position); | |
4239 | if (pos < BEGV || pos >= ZV) | |
4240 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4241 | } |
4242 | else | |
4243 | { | |
1701724c KH |
4244 | CHECK_NUMBER (position); |
4245 | CHECK_STRING (string); | |
4246 | pos = XINT (position); | |
4247 | if (pos < 0 || pos >= SCHARS (string)) | |
4248 | args_out_of_range (string, position); | |
1701724c | 4249 | } |
10d16101 KH |
4250 | if (NILP (window)) |
4251 | window = selected_window; | |
4252 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4253 | w = XWINDOW (window); |
10d16101 | 4254 | |
40fb53d6 | 4255 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4256 | } |
4257 | ||
c2f5bfd6 KH |
4258 | #if 0 |
4259 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4260 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4261 | The value is a number of glyphs drawn. | |
4262 | Type C-l to recover what previously shown. */) | |
4263 | (font_object, string) | |
4264 | Lisp_Object font_object, string; | |
4265 | { | |
4266 | Lisp_Object frame = selected_frame; | |
4267 | FRAME_PTR f = XFRAME (frame); | |
4268 | struct font *font; | |
4269 | struct face *face; | |
4270 | int i, len, width; | |
4271 | unsigned *code; | |
4272 | ||
4273 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4274 | CHECK_STRING (string); | |
4275 | len = SCHARS (string); | |
4276 | code = alloca (sizeof (unsigned) * len); | |
4277 | for (i = 0; i < len; i++) | |
4278 | { | |
4279 | Lisp_Object ch = Faref (string, make_number (i)); | |
4280 | Lisp_Object val; | |
4281 | int c = XINT (ch); | |
4282 | ||
4283 | code[i] = font->driver->encode_char (font, c); | |
4284 | if (code[i] == FONT_INVALID_CODE) | |
4285 | break; | |
4286 | } | |
4287 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4288 | face->fontp = font; | |
4289 | if (font->driver->prepare_face) | |
4290 | font->driver->prepare_face (f, face); | |
4291 | width = font->driver->text_extents (font, code, i, NULL); | |
4292 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4293 | if (font->driver->done_face) | |
4294 | font->driver->done_face (f, face); | |
4295 | face->fontp = NULL; | |
4296 | return make_number (len); | |
4297 | } | |
4298 | #endif | |
4299 | ||
4300 | #endif /* FONT_DEBUG */ | |
4301 | ||
4302 | \f | |
4303 | extern void syms_of_ftfont P_ (()); | |
4304 | extern void syms_of_xfont P_ (()); | |
4305 | extern void syms_of_xftfont P_ (()); | |
4306 | extern void syms_of_ftxfont P_ (()); | |
4307 | extern void syms_of_bdffont P_ (()); | |
4308 | extern void syms_of_w32font P_ (()); | |
4309 | extern void syms_of_atmfont P_ (()); | |
4310 | ||
4311 | void | |
4312 | syms_of_font () | |
4313 | { | |
4314 | sort_shift_bits[FONT_SLANT_INDEX] = 0; | |
4315 | sort_shift_bits[FONT_WEIGHT_INDEX] = 7; | |
4316 | sort_shift_bits[FONT_SIZE_INDEX] = 14; | |
4317 | sort_shift_bits[FONT_WIDTH_INDEX] = 21; | |
4318 | sort_shift_bits[FONT_ADSTYLE_INDEX] = 28; | |
4319 | sort_shift_bits[FONT_FOUNDRY_INDEX] = 29; | |
4320 | sort_shift_bits[FONT_FAMILY_INDEX] = 30; | |
35027d0c KH |
4321 | /* Note that sort_shift_bits[FONT_SORT_TYPE] and |
4322 | sort_shift_bits[FONT_SORT_REGISTRY] are never used. */ | |
c2f5bfd6 KH |
4323 | |
4324 | staticpro (&font_style_table); | |
4325 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
4326 | ||
1701724c KH |
4327 | staticpro (&font_charset_alist); |
4328 | font_charset_alist = Qnil; | |
4329 | ||
35027d0c KH |
4330 | DEFSYM (Qfont_spec, "font-spec"); |
4331 | DEFSYM (Qfont_entity, "font-entity"); | |
4332 | DEFSYM (Qfont_object, "font-object"); | |
4333 | ||
e0708580 | 4334 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 4335 | |
1bb1d99b KH |
4336 | DEFSYM (Qiso8859_1, "iso8859-1"); |
4337 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
4338 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 4339 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 4340 | |
c2f5bfd6 | 4341 | DEFSYM (QCotf, ":otf"); |
35027d0c | 4342 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 4343 | DEFSYM (QCscript, ":script"); |
4c496d0d | 4344 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
4345 | |
4346 | DEFSYM (QCfoundry, ":foundry"); | |
4347 | DEFSYM (QCadstyle, ":adstyle"); | |
4348 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
4349 | DEFSYM (QCspacing, ":spacing"); |
4350 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 4351 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
4352 | DEFSYM (QCavgwidth, ":avgwidth"); |
4353 | DEFSYM (QCfont_entity, ":font-entity"); | |
4354 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 4355 | |
ec6fe57c KH |
4356 | DEFSYM (Qc, "c"); |
4357 | DEFSYM (Qm, "m"); | |
4358 | DEFSYM (Qp, "p"); | |
4359 | DEFSYM (Qd, "d"); | |
4360 | ||
c2f5bfd6 KH |
4361 | staticpro (&null_vector); |
4362 | null_vector = Fmake_vector (make_number (0), Qnil); | |
4363 | ||
4364 | staticpro (&scratch_font_spec); | |
4365 | scratch_font_spec = Ffont_spec (0, NULL); | |
4366 | staticpro (&scratch_font_prefer); | |
4367 | scratch_font_prefer = Ffont_spec (0, NULL); | |
4368 | ||
733fd013 KH |
4369 | #ifdef HAVE_LIBOTF |
4370 | staticpro (&otf_list); | |
4371 | otf_list = Qnil; | |
4372 | #endif | |
4373 | ||
c2f5bfd6 KH |
4374 | defsubr (&Sfontp); |
4375 | defsubr (&Sfont_spec); | |
4376 | defsubr (&Sfont_get); | |
4377 | defsubr (&Sfont_put); | |
4378 | defsubr (&Slist_fonts); | |
35027d0c | 4379 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
4380 | defsubr (&Sfind_font); |
4381 | defsubr (&Sfont_xlfd_name); | |
4382 | defsubr (&Sclear_font_cache); | |
4383 | defsubr (&Sinternal_set_font_style_table); | |
4384 | defsubr (&Sfont_make_gstring); | |
4385 | defsubr (&Sfont_fill_gstring); | |
1701724c | 4386 | defsubr (&Sfont_shape_text); |
733fd013 | 4387 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 4388 | defsubr (&Sfont_otf_alternates); |
c2f5bfd6 KH |
4389 | |
4390 | #ifdef FONT_DEBUG | |
4391 | defsubr (&Sopen_font); | |
4392 | defsubr (&Sclose_font); | |
4393 | defsubr (&Squery_font); | |
4394 | defsubr (&Sget_font_glyphs); | |
ec6fe57c | 4395 | defsubr (&Sfont_match_p); |
10d16101 | 4396 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
4397 | #if 0 |
4398 | defsubr (&Sdraw_string); | |
4399 | #endif | |
4400 | #endif /* FONT_DEBUG */ | |
4401 | ||
4402 | #ifdef HAVE_FREETYPE | |
35027d0c | 4403 | syms_of_ftfont (); |
c2f5bfd6 | 4404 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
4405 | syms_of_xfont (); |
4406 | syms_of_ftxfont (); | |
c2f5bfd6 | 4407 | #ifdef HAVE_XFT |
35027d0c | 4408 | syms_of_xftfont (); |
c2f5bfd6 KH |
4409 | #endif /* HAVE_XFT */ |
4410 | #endif /* HAVE_X_WINDOWS */ | |
4411 | #else /* not HAVE_FREETYPE */ | |
4412 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 4413 | syms_of_xfont (); |
c2f5bfd6 KH |
4414 | #endif /* HAVE_X_WINDOWS */ |
4415 | #endif /* not HAVE_FREETYPE */ | |
4416 | #ifdef HAVE_BDFFONT | |
35027d0c | 4417 | syms_of_bdffont (); |
c2f5bfd6 KH |
4418 | #endif /* HAVE_BDFFONT */ |
4419 | #ifdef WINDOWSNT | |
35027d0c | 4420 | syms_of_w32font (); |
c2f5bfd6 KH |
4421 | #endif /* WINDOWSNT */ |
4422 | #ifdef MAC_OS | |
35027d0c | 4423 | syms_of_atmfont (); |
c2f5bfd6 KH |
4424 | #endif /* MAC_OS */ |
4425 | } | |
885b7d09 MB |
4426 | |
4427 | /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846 | |
4428 | (do not change this comment) */ |