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 | ||
9ec0b715 | 9 | GNU Emacs is free software: you can redistribute it and/or modify |
c2f5bfd6 | 10 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
11 | the Free Software Foundation, either version 3 of the License, or |
12 | (at your option) any later version. | |
c2f5bfd6 KH |
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 | |
9ec0b715 | 20 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c2f5bfd6 KH |
21 | |
22 | #include <config.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <ctype.h> | |
26 | ||
27 | #include "lisp.h" | |
28 | #include "buffer.h" | |
29 | #include "frame.h" | |
10d16101 | 30 | #include "window.h" |
c2f5bfd6 KH |
31 | #include "dispextern.h" |
32 | #include "charset.h" | |
33 | #include "character.h" | |
34 | #include "composite.h" | |
35 | #include "fontset.h" | |
36 | #include "font.h" | |
37 | ||
43c0454d KH |
38 | #ifdef HAVE_X_WINDOWS |
39 | #include "xterm.h" | |
40 | #endif /* HAVE_X_WINDOWS */ | |
41 | ||
42 | #ifdef HAVE_NTGUI | |
43 | #include "w32term.h" | |
44 | #endif /* HAVE_NTGUI */ | |
45 | ||
edfda783 AR |
46 | #ifdef HAVE_NS |
47 | #include "nsterm.h" | |
48 | #endif /* HAVE_NS */ | |
49 | ||
35027d0c | 50 | Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; |
ed96cde8 AR |
51 | |
52 | #ifdef HAVE_NS | |
53 | extern Lisp_Object Qfontsize; | |
54 | #endif | |
c2f5bfd6 | 55 | |
e0708580 KH |
56 | Lisp_Object Qopentype; |
57 | ||
35027d0c | 58 | /* Important character set strings. */ |
9e1bb909 | 59 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 60 | |
edfda783 AR |
61 | #ifdef HAVE_NS |
62 | #define DEFAULT_ENCODING Qiso10646_1 | |
63 | #else | |
64 | #define DEFAULT_ENCODING Qiso8859_1 | |
65 | #endif | |
66 | ||
071132a9 KH |
67 | /* Unicode category `Cf'. */ |
68 | static Lisp_Object QCf; | |
69 | ||
c2f5bfd6 KH |
70 | /* Special vector of zero length. This is repeatedly used by (struct |
71 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 72 | static Lisp_Object null_vector; |
c2f5bfd6 | 73 | |
d0ab1ebe KH |
74 | static Lisp_Object Vfont_weight_table, Vfont_slant_table, Vfont_width_table; |
75 | ||
76 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ | |
c2f5bfd6 KH |
77 | static Lisp_Object font_style_table; |
78 | ||
d0ab1ebe KH |
79 | /* Structure used for tables mapping weight, slant, and width numeric |
80 | values and their names. */ | |
81 | ||
82 | struct table_entry | |
83 | { | |
84 | int numeric; | |
85 | /* The first one is a valid name as a face attribute. | |
86 | The second one (if any) is a typical name in XLFD field. */ | |
87 | char *names[5]; | |
88 | Lisp_Object *symbols; | |
89 | }; | |
90 | ||
91 | /* Table of weight numeric values and their names. This table must be | |
92 | sorted by numeric values in ascending order. */ | |
93 | ||
94 | static struct table_entry weight_table[] = | |
95 | { | |
96 | { 0, { "thin" }}, | |
97 | { 20, { "ultra-light", "ultralight" }}, | |
98 | { 40, { "extra-light", "extralight" }}, | |
99 | { 50, { "light" }}, | |
100 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
101 | { 100, { "normal", "medium", "regular" }}, | |
102 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, | |
103 | { 200, { "bold" }}, | |
104 | { 205, { "extra-bold", "extrabold" }}, | |
105 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
106 | }; | |
107 | ||
108 | /* Table of slant numeric values and their names. This table must be | |
109 | sorted by numeric values in ascending order. */ | |
110 | ||
111 | static struct table_entry slant_table[] = | |
112 | { | |
113 | { 0, { "reverse-oblique", "ro" }}, | |
114 | { 10, { "reverse-italic", "ri" }}, | |
115 | { 100, { "normal", "r" }}, | |
116 | { 200, { "italic" ,"i", "ot" }}, | |
117 | { 210, { "oblique", "o" }} | |
118 | }; | |
119 | ||
120 | /* Table of width numeric values and their names. This table must be | |
121 | sorted by numeric values in ascending order. */ | |
122 | ||
123 | static struct table_entry width_table[] = | |
124 | { | |
125 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
126 | { 63, { "extra-condensed", "extracondensed" }}, | |
127 | { 75, { "condensed", "compressed", "narrow" }}, | |
128 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
129 | { 100, { "normal", "medium", "regular" }}, | |
130 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, | |
131 | { 125, { "expanded" }}, | |
132 | { 150, { "extra-expanded", "extraexpanded" }}, | |
133 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
134 | }; | |
135 | ||
35027d0c | 136 | extern Lisp_Object Qnormal; |
c2f5bfd6 KH |
137 | |
138 | /* Symbols representing keys of normal font properties. */ | |
b1868a1a CY |
139 | extern Lisp_Object QCtype, QCfamily, QCweight, QCslant, QCwidth; |
140 | extern Lisp_Object QCheight, QCsize, QCname; | |
141 | ||
35027d0c | 142 | Lisp_Object QCfoundry, QCadstyle, QCregistry; |
c2f5bfd6 | 143 | /* Symbols representing keys of font extra info. */ |
35027d0c KH |
144 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
145 | Lisp_Object QCantialias, QCfont_entity, QCfc_unknown_spec; | |
ec6fe57c KH |
146 | /* Symbols representing values of font spacing property. */ |
147 | Lisp_Object Qc, Qm, Qp, Qd; | |
c2f5bfd6 | 148 | |
819e81df KH |
149 | Lisp_Object Vfont_encoding_alist; |
150 | ||
1701724c KH |
151 | /* Alist of font registry symbol and the corresponding charsets |
152 | information. The information is retrieved from | |
153 | Vfont_encoding_alist on demand. | |
154 | ||
155 | Eash element has the form: | |
156 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
157 | or | |
158 | (REGISTRY . nil) | |
159 | ||
160 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
161 | encodes a character code to a glyph code of a font, and | |
162 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
163 | character is supported by a font. | |
164 | ||
165 | The latter form means that the information for REGISTRY couldn't be | |
166 | retrieved. */ | |
167 | static Lisp_Object font_charset_alist; | |
168 | ||
f697fff0 KH |
169 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
170 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
171 | here. */ |
172 | static struct font_driver_list *font_driver_list; | |
173 | ||
35027d0c KH |
174 | \f |
175 | ||
176 | /* Creaters of font-related Lisp object. */ | |
177 | ||
178 | Lisp_Object | |
179 | font_make_spec () | |
180 | { | |
181 | Lisp_Object font_spec; | |
182 | struct font_spec *spec | |
183 | = ((struct font_spec *) | |
184 | allocate_pseudovector (VECSIZE (struct font_spec), | |
185 | FONT_SPEC_MAX, PVEC_FONT)); | |
186 | XSETFONT (font_spec, spec); | |
187 | return font_spec; | |
188 | } | |
189 | ||
190 | Lisp_Object | |
191 | font_make_entity () | |
192 | { | |
193 | Lisp_Object font_entity; | |
194 | struct font_entity *entity | |
195 | = ((struct font_entity *) | |
196 | allocate_pseudovector (VECSIZE (struct font_entity), | |
197 | FONT_ENTITY_MAX, PVEC_FONT)); | |
198 | XSETFONT (font_entity, entity); | |
199 | return font_entity; | |
200 | } | |
201 | ||
51c13510 KH |
202 | /* Create a font-object whose structure size is SIZE. If ENTITY is |
203 | not nil, copy properties from ENTITY to the font-object. If | |
204 | PIXELSIZE is positive, set the `size' property to PIXELSIZE. */ | |
35027d0c | 205 | Lisp_Object |
51c13510 | 206 | font_make_object (size, entity, pixelsize) |
35027d0c | 207 | int size; |
51c13510 KH |
208 | Lisp_Object entity; |
209 | int pixelsize; | |
35027d0c KH |
210 | { |
211 | Lisp_Object font_object; | |
212 | struct font *font | |
213 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
51c13510 KH |
214 | int i; |
215 | ||
35027d0c KH |
216 | XSETFONT (font_object, font); |
217 | ||
51c13510 KH |
218 | if (! NILP (entity)) |
219 | { | |
220 | for (i = 1; i < FONT_SPEC_MAX; i++) | |
221 | font->props[i] = AREF (entity, i); | |
222 | if (! NILP (AREF (entity, FONT_EXTRA_INDEX))) | |
223 | font->props[FONT_EXTRA_INDEX] | |
224 | = Fcopy_sequence (AREF (entity, FONT_EXTRA_INDEX)); | |
225 | } | |
226 | if (size > 0) | |
227 | font->props[FONT_SIZE_INDEX] = make_number (pixelsize); | |
35027d0c KH |
228 | return font_object; |
229 | } | |
230 | ||
231 | \f | |
232 | ||
ec6fe57c | 233 | static int font_pixel_size P_ ((FRAME_PTR f, Lisp_Object)); |
c2f5bfd6 | 234 | static Lisp_Object font_open_entity P_ ((FRAME_PTR, Lisp_Object, int)); |
35027d0c KH |
235 | static Lisp_Object font_matching_entity P_ ((FRAME_PTR, Lisp_Object *, |
236 | Lisp_Object)); | |
c2f5bfd6 KH |
237 | |
238 | /* Number of registered font drivers. */ | |
239 | static int num_font_drivers; | |
240 | ||
35027d0c KH |
241 | |
242 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
243 | If STR is "*", it returns nil. | |
2f286d4f KH |
244 | If FORCE_SYMBOL is zero and all characters in STR are digits, it |
245 | returns an integer. Otherwise, it returns a symbol interned from | |
246 | STR. */ | |
35027d0c KH |
247 | |
248 | Lisp_Object | |
2f286d4f | 249 | font_intern_prop (str, len, force_symbol) |
35027d0c KH |
250 | char *str; |
251 | int len; | |
2f286d4f | 252 | int force_symbol; |
35027d0c KH |
253 | { |
254 | int i; | |
d0ab1ebe | 255 | Lisp_Object tem; |
35027d0c KH |
256 | Lisp_Object obarray; |
257 | ||
258 | if (len == 1 && *str == '*') | |
259 | return Qnil; | |
2f286d4f | 260 | if (!force_symbol && len >=1 && isdigit (*str)) |
35027d0c KH |
261 | { |
262 | for (i = 1; i < len; i++) | |
263 | if (! isdigit (str[i])) | |
264 | break; | |
265 | if (i == len) | |
266 | return make_number (atoi (str)); | |
267 | } | |
268 | ||
269 | /* The following code is copied from the function intern (in lread.c). */ | |
270 | obarray = Vobarray; | |
271 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) | |
272 | obarray = check_obarray (obarray); | |
273 | tem = oblookup (obarray, str, len, len); | |
274 | if (SYMBOLP (tem)) | |
275 | return tem; | |
276 | return Fintern (make_unibyte_string (str, len), obarray); | |
277 | } | |
278 | ||
9331887d | 279 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 280 | |
9331887d KH |
281 | static int |
282 | font_pixel_size (f, spec) | |
283 | FRAME_PTR f; | |
284 | Lisp_Object spec; | |
285 | { | |
819e81df | 286 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
287 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
288 | double point_size; | |
35027d0c | 289 | int dpi, pixel_size; |
d0ab1ebe | 290 | Lisp_Object val; |
51c01100 | 291 | |
9331887d KH |
292 | if (INTEGERP (size)) |
293 | return XINT (size); | |
294 | if (NILP (size)) | |
819e81df | 295 | return 0; |
d0ab1ebe | 296 | font_assert (FLOATP (size)); |
9331887d | 297 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
298 | val = AREF (spec, FONT_DPI_INDEX); |
299 | if (INTEGERP (val)) | |
17e28f6d | 300 | dpi = XINT (val); |
9331887d KH |
301 | else |
302 | dpi = f->resy; | |
303 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
304 | return pixel_size; | |
819e81df KH |
305 | #else |
306 | return 1; | |
307 | #endif | |
9331887d KH |
308 | } |
309 | ||
c2f5bfd6 | 310 | |
35027d0c KH |
311 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
312 | font vector. If VAL is not valid (i.e. not registered in | |
313 | font_style_table), return -1 if NOERROR is zero, and return a | |
314 | proper index if NOERROR is nonzero. In that case, register VAL in | |
315 | font_style_table if VAL is a symbol, and return a closest index if | |
316 | VAL is an integer. */ | |
c2f5bfd6 | 317 | |
35027d0c KH |
318 | int |
319 | font_style_to_value (prop, val, noerror) | |
c2f5bfd6 | 320 | enum font_property_index prop; |
35027d0c KH |
321 | Lisp_Object val; |
322 | int noerror; | |
c2f5bfd6 | 323 | { |
35027d0c KH |
324 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
325 | int len = ASIZE (table); | |
d0ab1ebe | 326 | int i, j; |
c2f5bfd6 | 327 | |
35027d0c | 328 | if (SYMBOLP (val)) |
c2f5bfd6 | 329 | { |
72606e45 | 330 | unsigned char *s; |
35027d0c KH |
331 | Lisp_Object args[2], elt; |
332 | ||
333 | /* At first try exact match. */ | |
334 | for (i = 0; i < len; i++) | |
d0ab1ebe KH |
335 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
336 | if (EQ (val, AREF (AREF (table, i), j))) | |
337 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
338 | | (i << 4) | (j - 1)); | |
35027d0c | 339 | /* Try also with case-folding match. */ |
72606e45 | 340 | s = SDATA (SYMBOL_NAME (val)); |
35027d0c | 341 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
342 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
343 | { | |
344 | elt = AREF (AREF (table, i), j); | |
72606e45 | 345 | if (xstrcasecmp (s, SDATA (SYMBOL_NAME (elt))) == 0) |
d0ab1ebe KH |
346 | return ((XINT (AREF (AREF (table, i), 0)) << 8) |
347 | | (i << 4) | (j - 1)); | |
348 | } | |
35027d0c KH |
349 | if (! noerror) |
350 | return -1; | |
351 | if (len == 255) | |
352 | abort (); | |
d0ab1ebe KH |
353 | elt = Fmake_vector (make_number (2), make_number (255)); |
354 | ASET (elt, 1, val); | |
35027d0c | 355 | args[0] = table; |
d0ab1ebe | 356 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 357 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
d0ab1ebe | 358 | return (255 << 8) | (i << 4); |
c2f5bfd6 | 359 | } |
35027d0c KH |
360 | else |
361 | { | |
d0ab1ebe | 362 | int i, last_n; |
35027d0c | 363 | int numeric = XINT (val); |
c2f5bfd6 | 364 | |
d0ab1ebe | 365 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 366 | { |
d0ab1ebe | 367 | int n = XINT (AREF (AREF (table, i), 0)); |
c2f5bfd6 | 368 | |
35027d0c | 369 | if (numeric == n) |
d0ab1ebe | 370 | return (n << 8) | (i << 4); |
35027d0c KH |
371 | if (numeric < n) |
372 | { | |
373 | if (! noerror) | |
374 | return -1; | |
d0ab1ebe KH |
375 | return ((i == 0 || n - numeric < numeric - last_n) |
376 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 377 | } |
35027d0c | 378 | last_n = n; |
35027d0c KH |
379 | } |
380 | if (! noerror) | |
381 | return -1; | |
d0ab1ebe | 382 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
383 | } |
384 | } | |
c2f5bfd6 KH |
385 | |
386 | Lisp_Object | |
3ef8c1b4 JR |
387 | font_style_symbolic (font, prop, for_face) |
388 | Lisp_Object font; | |
35027d0c KH |
389 | enum font_property_index prop; |
390 | int for_face; | |
c2f5bfd6 | 391 | { |
3ef8c1b4 | 392 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
393 | Lisp_Object table, elt; |
394 | int i; | |
c2f5bfd6 | 395 | |
35027d0c KH |
396 | if (NILP (val)) |
397 | return Qnil; | |
398 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
d0ab1ebe KH |
399 | i = XINT (val) & 0xFF; |
400 | font_assert (((i >> 4) & 0xF) < ASIZE (table)); | |
401 | elt = AREF (table, ((i >> 4) & 0xF)); | |
402 | font_assert ((i & 0xF) + 1 < ASIZE (elt)); | |
6fe9826d JR |
403 | return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
404 | } | |
405 | ||
c2f5bfd6 KH |
406 | extern Lisp_Object Vface_alternative_font_family_alist; |
407 | ||
1701724c KH |
408 | extern Lisp_Object find_font_encoding P_ ((Lisp_Object)); |
409 | ||
35027d0c | 410 | |
819e81df KH |
411 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
412 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
413 | of the font. REPERTORY is a charset symbol or nil. */ | |
414 | ||
415 | Lisp_Object | |
416 | find_font_encoding (fontname) | |
417 | Lisp_Object fontname; | |
418 | { | |
419 | Lisp_Object tail, elt; | |
420 | ||
421 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
422 | { | |
423 | elt = XCAR (tail); | |
424 | if (CONSP (elt) | |
425 | && STRINGP (XCAR (elt)) | |
426 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
427 | && (SYMBOLP (XCDR (elt)) | |
428 | ? CHARSETP (XCDR (elt)) | |
429 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
430 | return (XCDR (elt)); | |
431 | } | |
432 | /* We don't know the encoding of this font. Let's assume `ascii'. */ | |
433 | return Qascii; | |
434 | } | |
435 | ||
1701724c KH |
436 | /* Return encoding charset and repertory charset for REGISTRY in |
437 | ENCODING and REPERTORY correspondingly. If correct information for | |
438 | REGISTRY is available, return 0. Otherwise return -1. */ | |
439 | ||
440 | int | |
441 | font_registry_charsets (registry, encoding, repertory) | |
442 | Lisp_Object registry; | |
443 | struct charset **encoding, **repertory; | |
444 | { | |
445 | Lisp_Object val; | |
446 | int encoding_id, repertory_id; | |
447 | ||
35027d0c | 448 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
449 | if (! NILP (val)) |
450 | { | |
451 | val = XCDR (val); | |
452 | if (NILP (val)) | |
453 | return -1; | |
454 | encoding_id = XINT (XCAR (val)); | |
455 | repertory_id = XINT (XCDR (val)); | |
456 | } | |
457 | else | |
458 | { | |
459 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
460 | if (SYMBOLP (val) && CHARSETP (val)) | |
461 | { | |
462 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
463 | } | |
464 | else if (CONSP (val)) | |
465 | { | |
466 | if (! CHARSETP (XCAR (val))) | |
467 | goto invalid_entry; | |
468 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
469 | if (NILP (XCDR (val))) | |
470 | repertory_id = -1; | |
471 | else | |
472 | { | |
473 | if (! CHARSETP (XCDR (val))) | |
474 | goto invalid_entry; | |
475 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
476 | } | |
51c01100 | 477 | } |
1701724c KH |
478 | else |
479 | goto invalid_entry; | |
480 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
481 | font_charset_alist | |
482 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
483 | } | |
484 | ||
485 | if (encoding) | |
486 | *encoding = CHARSET_FROM_ID (encoding_id); | |
487 | if (repertory) | |
488 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
489 | return 0; | |
490 | ||
491 | invalid_entry: | |
492 | font_charset_alist | |
493 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
494 | return -1; | |
495 | } | |
496 | ||
c2f5bfd6 | 497 | \f |
45eb10fb KH |
498 | /* Font property value validaters. See the comment of |
499 | font_property_table for the meaning of the arguments. */ | |
500 | ||
35027d0c | 501 | static Lisp_Object font_prop_validate P_ ((int, Lisp_Object, Lisp_Object)); |
45eb10fb KH |
502 | static Lisp_Object font_prop_validate_symbol P_ ((Lisp_Object, Lisp_Object)); |
503 | static Lisp_Object font_prop_validate_style P_ ((Lisp_Object, Lisp_Object)); | |
504 | static Lisp_Object font_prop_validate_non_neg P_ ((Lisp_Object, Lisp_Object)); | |
505 | static Lisp_Object font_prop_validate_spacing P_ ((Lisp_Object, Lisp_Object)); | |
35027d0c | 506 | static int get_font_prop_index P_ ((Lisp_Object)); |
c2f5bfd6 KH |
507 | |
508 | static Lisp_Object | |
45eb10fb | 509 | font_prop_validate_symbol (prop, val) |
ec6fe57c | 510 | Lisp_Object prop, val; |
c2f5bfd6 KH |
511 | { |
512 | if (STRINGP (val)) | |
35027d0c KH |
513 | val = Fintern (val, Qnil); |
514 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 515 | val = Qerror; |
35027d0c KH |
516 | else if (EQ (prop, QCregistry)) |
517 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
518 | return val; |
519 | } | |
520 | ||
35027d0c | 521 | |
c2f5bfd6 | 522 | static Lisp_Object |
35027d0c KH |
523 | font_prop_validate_style (style, val) |
524 | Lisp_Object style, val; | |
c2f5bfd6 | 525 | { |
35027d0c KH |
526 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
527 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
528 | : FONT_WIDTH_INDEX); | |
529 | int n; | |
530 | if (INTEGERP (val)) | |
c2f5bfd6 | 531 | { |
35027d0c | 532 | n = XINT (val); |
64b900e3 | 533 | if (((n >> 4) & 0xF) |
35027d0c | 534 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
535 | val = Qerror; |
536 | else | |
537 | { | |
64b900e3 KH |
538 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
539 | ||
540 | if ((n & 0xF) + 1 >= ASIZE (elt)) | |
541 | val = Qerror; | |
542 | else if (XINT (AREF (elt, 0)) != (n >> 8)) | |
c2f5bfd6 KH |
543 | val = Qerror; |
544 | } | |
545 | } | |
35027d0c KH |
546 | else if (SYMBOLP (val)) |
547 | { | |
548 | int n = font_style_to_value (prop, val, 0); | |
549 | ||
550 | val = n >= 0 ? make_number (n) : Qerror; | |
551 | } | |
552 | else | |
553 | val = Qerror; | |
c2f5bfd6 KH |
554 | return val; |
555 | } | |
556 | ||
557 | static Lisp_Object | |
45eb10fb | 558 | font_prop_validate_non_neg (prop, val) |
ec6fe57c | 559 | Lisp_Object prop, val; |
c2f5bfd6 KH |
560 | { |
561 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
562 | ? val : Qerror); | |
563 | } | |
564 | ||
565 | static Lisp_Object | |
45eb10fb | 566 | font_prop_validate_spacing (prop, val) |
ec6fe57c KH |
567 | Lisp_Object prop, val; |
568 | { | |
569 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
570 | return val; | |
3692570f KH |
571 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
572 | { | |
573 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
574 | ||
575 | if (spacing == 'c' || spacing == 'C') | |
576 | return make_number (FONT_SPACING_CHARCELL); | |
577 | if (spacing == 'm' || spacing == 'M') | |
578 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 579 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
580 | return make_number (FONT_SPACING_PROPORTIONAL); |
581 | if (spacing == 'd' || spacing == 'D') | |
582 | return make_number (FONT_SPACING_DUAL); | |
583 | } | |
ec6fe57c KH |
584 | return Qerror; |
585 | } | |
586 | ||
1701724c KH |
587 | static Lisp_Object |
588 | font_prop_validate_otf (prop, val) | |
589 | Lisp_Object prop, val; | |
590 | { | |
591 | Lisp_Object tail, tmp; | |
592 | int i; | |
593 | ||
594 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
595 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
596 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
597 | if (! CONSP (val)) | |
598 | return Qerror; | |
599 | if (! SYMBOLP (XCAR (val))) | |
600 | return Qerror; | |
601 | tail = XCDR (val); | |
602 | if (NILP (tail)) | |
603 | return val; | |
604 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
605 | return Qerror; | |
606 | for (i = 0; i < 2; i++) | |
607 | { | |
608 | tail = XCDR (tail); | |
609 | if (NILP (tail)) | |
610 | return val; | |
611 | if (! CONSP (tail)) | |
612 | return Qerror; | |
613 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
614 | if (! SYMBOLP (XCAR (tmp))) | |
615 | return Qerror; | |
616 | if (! NILP (tmp)) | |
617 | return Qerror; | |
618 | } | |
619 | return val; | |
620 | } | |
621 | ||
ec6fe57c KH |
622 | /* Structure of known font property keys and validater of the |
623 | values. */ | |
c2f5bfd6 KH |
624 | struct |
625 | { | |
ec6fe57c | 626 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 627 | Lisp_Object *key; |
45eb10fb KH |
628 | /* Function to validate PROP's value VAL, or NULL if any value is |
629 | ok. The value is VAL or its regularized value if VAL is valid, | |
630 | and Qerror if not. */ | |
631 | Lisp_Object (*validater) P_ ((Lisp_Object prop, Lisp_Object val)); | |
ec6fe57c KH |
632 | } font_property_table[] = |
633 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
634 | { &QCfoundry, font_prop_validate_symbol }, |
635 | { &QCfamily, font_prop_validate_symbol }, | |
636 | { &QCadstyle, font_prop_validate_symbol }, | |
637 | { &QCregistry, font_prop_validate_symbol }, | |
638 | { &QCweight, font_prop_validate_style }, | |
639 | { &QCslant, font_prop_validate_style }, | |
640 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 641 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
642 | { &QCdpi, font_prop_validate_non_neg }, |
643 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
644 | { &QCavgwidth, font_prop_validate_non_neg }, |
645 | /* The order of the above entries must match with enum | |
646 | font_property_index. */ | |
647 | { &QClang, font_prop_validate_symbol }, | |
648 | { &QCscript, font_prop_validate_symbol }, | |
649 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
650 | }; |
651 | ||
45eb10fb | 652 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
653 | #define FONT_PROPERTY_TABLE_SIZE \ |
654 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
655 | ||
45eb10fb | 656 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 657 | already known property. */ |
45eb10fb | 658 | |
ec6fe57c | 659 | static int |
35027d0c | 660 | get_font_prop_index (key) |
c2f5bfd6 KH |
661 | Lisp_Object key; |
662 | { | |
35027d0c KH |
663 | int i; |
664 | ||
665 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
666 | if (EQ (key, *font_property_table[i].key)) | |
667 | return i; | |
ec6fe57c | 668 | return -1; |
c2f5bfd6 KH |
669 | } |
670 | ||
35027d0c KH |
671 | /* Validate the font property. The property key is specified by the |
672 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
673 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 674 | |
c2f5bfd6 | 675 | static Lisp_Object |
35027d0c KH |
676 | font_prop_validate (idx, prop, val) |
677 | int idx; | |
678 | Lisp_Object prop, val; | |
c2f5bfd6 | 679 | { |
35027d0c | 680 | Lisp_Object validated; |
c2f5bfd6 | 681 | |
1f09f444 KH |
682 | if (NILP (val)) |
683 | return val; | |
35027d0c KH |
684 | if (NILP (prop)) |
685 | prop = *font_property_table[idx].key; | |
686 | else | |
ec6fe57c | 687 | { |
35027d0c KH |
688 | idx = get_font_prop_index (prop); |
689 | if (idx < 0) | |
690 | return val; | |
ec6fe57c | 691 | } |
35027d0c KH |
692 | validated = (font_property_table[idx].validater) (prop, val); |
693 | if (EQ (validated, Qerror)) | |
694 | signal_error ("invalid font property", Fcons (prop, val)); | |
695 | return validated; | |
c2f5bfd6 | 696 | } |
51c01100 | 697 | |
35027d0c KH |
698 | |
699 | /* Store VAL as a value of extra font property PROP in FONT while | |
700 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 701 | |
01dbeb0b | 702 | Lisp_Object |
ec6fe57c | 703 | font_put_extra (font, prop, val) |
9331887d | 704 | Lisp_Object font, prop, val; |
9331887d KH |
705 | { |
706 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 707 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
708 | |
709 | if (NILP (slot)) | |
710 | { | |
35027d0c KH |
711 | Lisp_Object prev = Qnil; |
712 | ||
713 | while (CONSP (extra) | |
714 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
715 | prev = extra, extra = XCDR (extra); | |
716 | if (NILP (prev)) | |
717 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); | |
718 | else | |
719 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); | |
ec6fe57c | 720 | return val; |
9331887d | 721 | } |
9331887d | 722 | XSETCDR (slot, val); |
ec6fe57c | 723 | return val; |
9331887d KH |
724 | } |
725 | ||
c2f5bfd6 KH |
726 | \f |
727 | /* Font name parser and unparser */ | |
728 | ||
ec6fe57c KH |
729 | static int parse_matrix P_ ((char *)); |
730 | static int font_expand_wildcards P_ ((Lisp_Object *, int)); | |
731 | static int font_parse_name P_ ((char *, Lisp_Object)); | |
c2f5bfd6 | 732 | |
ec6fe57c | 733 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
734 | enum xlfd_field_index |
735 | { | |
736 | XLFD_FOUNDRY_INDEX, | |
737 | XLFD_FAMILY_INDEX, | |
738 | XLFD_WEIGHT_INDEX, | |
739 | XLFD_SLANT_INDEX, | |
740 | XLFD_SWIDTH_INDEX, | |
741 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
742 | XLFD_PIXEL_INDEX, |
743 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
744 | XLFD_RESX_INDEX, |
745 | XLFD_RESY_INDEX, | |
746 | XLFD_SPACING_INDEX, | |
747 | XLFD_AVGWIDTH_INDEX, | |
748 | XLFD_REGISTRY_INDEX, | |
749 | XLFD_ENCODING_INDEX, | |
750 | XLFD_LAST_INDEX | |
751 | }; | |
752 | ||
ec6fe57c | 753 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
754 | enum xlfd_field_mask |
755 | { | |
756 | XLFD_FOUNDRY_MASK = 0x0001, | |
757 | XLFD_FAMILY_MASK = 0x0002, | |
758 | XLFD_WEIGHT_MASK = 0x0004, | |
759 | XLFD_SLANT_MASK = 0x0008, | |
760 | XLFD_SWIDTH_MASK = 0x0010, | |
761 | XLFD_ADSTYLE_MASK = 0x0020, | |
762 | XLFD_PIXEL_MASK = 0x0040, | |
763 | XLFD_POINT_MASK = 0x0080, | |
764 | XLFD_RESX_MASK = 0x0100, | |
765 | XLFD_RESY_MASK = 0x0200, | |
766 | XLFD_SPACING_MASK = 0x0400, | |
767 | XLFD_AVGWIDTH_MASK = 0x0800, | |
768 | XLFD_REGISTRY_MASK = 0x1000, | |
769 | XLFD_ENCODING_MASK = 0x2000 | |
770 | }; | |
771 | ||
772 | ||
c2f5bfd6 KH |
773 | /* Parse P pointing the pixel/point size field of the form |
774 | `[A B C D]' which specifies a transformation matrix: | |
775 | ||
776 | A B 0 | |
777 | C D 0 | |
778 | 0 0 1 | |
779 | ||
780 | by which all glyphs of the font are transformed. The spec says | |
781 | that scalar value N for the pixel/point size is equivalent to: | |
782 | A = N * resx/resy, B = C = 0, D = N. | |
783 | ||
784 | Return the scalar value N if the form is valid. Otherwise return | |
785 | -1. */ | |
786 | ||
787 | static int | |
788 | parse_matrix (p) | |
789 | char *p; | |
790 | { | |
791 | double matrix[4]; | |
792 | char *end; | |
793 | int i; | |
794 | ||
795 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
796 | { | |
797 | if (*p == '~') | |
798 | matrix[i] = - strtod (p + 1, &end); | |
799 | else | |
800 | matrix[i] = strtod (p, &end); | |
801 | p = end; | |
802 | } | |
803 | return (i == 4 ? (int) matrix[3] : -1); | |
804 | } | |
805 | ||
4485a28e KH |
806 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
807 | multiple fields to fill in all 14 XLFD fields while restring a | |
808 | field position by its contents. */ | |
809 | ||
ec6fe57c | 810 | static int |
4485a28e KH |
811 | font_expand_wildcards (field, n) |
812 | Lisp_Object field[XLFD_LAST_INDEX]; | |
813 | int n; | |
814 | { | |
815 | /* Copy of FIELD. */ | |
816 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
817 | /* Array of information about where this element can go. Nth | |
818 | element is for Nth element of FIELD. */ | |
819 | struct { | |
820 | /* Minimum possible field. */ | |
821 | int from; | |
822 | /* Maxinum possible field. */ | |
823 | int to; | |
824 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
825 | int mask; | |
826 | } range[XLFD_LAST_INDEX]; | |
827 | int i, j; | |
ec6fe57c | 828 | int range_from, range_to; |
4485a28e KH |
829 | unsigned range_mask; |
830 | ||
831 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
832 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
833 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 834 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 835 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
836 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
837 | ||
838 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
839 | field. The value is shifted to left one bit by one in the | |
840 | following loop. */ | |
841 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
842 | range_mask = (range_mask << 1) | 1; | |
843 | ||
ec6fe57c KH |
844 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
845 | position-based retriction for FIELD[I]. */ | |
846 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
847 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 848 | { |
4485a28e KH |
849 | Lisp_Object val = field[i]; |
850 | ||
851 | tmp[i] = val; | |
852 | if (NILP (val)) | |
853 | { | |
854 | /* Wildcard. */ | |
855 | range[i].from = range_from; | |
856 | range[i].to = range_to; | |
857 | range[i].mask = range_mask; | |
858 | } | |
859 | else | |
860 | { | |
861 | /* The triplet FROM, TO, and MASK is a value-based | |
862 | retriction for FIELD[I]. */ | |
863 | int from, to; | |
864 | unsigned mask; | |
865 | ||
866 | if (INTEGERP (val)) | |
867 | { | |
868 | int numeric = XINT (val); | |
869 | ||
ef18374f KH |
870 | if (i + 1 == n) |
871 | from = to = XLFD_ENCODING_INDEX, | |
872 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
873 | else if (numeric == 0) |
874 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
875 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
876 | else if (numeric <= 48) |
877 | from = to = XLFD_PIXEL_INDEX, | |
878 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 879 | else |
ec6fe57c | 880 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
881 | mask = XLFD_LARGENUM_MASK; |
882 | } | |
35027d0c | 883 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
884 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
885 | mask = XLFD_NULL_MASK; | |
886 | else if (i == 0) | |
887 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
888 | else if (i + 1 == n) | |
889 | { | |
890 | Lisp_Object name = SYMBOL_NAME (val); | |
891 | ||
892 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
893 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
894 | mask = XLFD_REGENC_MASK; | |
895 | else | |
896 | from = to = XLFD_ENCODING_INDEX, | |
897 | mask = XLFD_ENCODING_MASK; | |
898 | } | |
ef18374f KH |
899 | else if (range_from <= XLFD_WEIGHT_INDEX |
900 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 901 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 902 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
903 | else if (range_from <= XLFD_SLANT_INDEX |
904 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 905 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 906 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
907 | else if (range_from <= XLFD_SWIDTH_INDEX |
908 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 909 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
910 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
911 | else | |
912 | { | |
ec6fe57c | 913 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
914 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
915 | else | |
916 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
917 | mask = XLFD_SYMBOL_MASK; | |
918 | } | |
919 | ||
920 | /* Merge position-based and value-based restrictions. */ | |
921 | mask &= range_mask; | |
922 | while (from < range_from) | |
923 | mask &= ~(1 << from++); | |
924 | while (from < 14 && ! (mask & (1 << from))) | |
925 | from++; | |
926 | while (to > range_to) | |
927 | mask &= ~(1 << to--); | |
928 | while (to >= 0 && ! (mask & (1 << to))) | |
929 | to--; | |
930 | if (from > to) | |
931 | return -1; | |
932 | range[i].from = from; | |
933 | range[i].to = to; | |
934 | range[i].mask = mask; | |
935 | ||
936 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
937 | { |
938 | /* The range is narrowed by value-based restrictions. | |
939 | Reflect it to the other fields. */ | |
940 | ||
941 | /* Following fields should be after FROM. */ | |
942 | range_from = from; | |
943 | /* Preceding fields should be before TO. */ | |
944 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
945 | { | |
946 | /* Check FROM for non-wildcard field. */ | |
947 | if (! NILP (tmp[j]) && range[j].from < from) | |
948 | { | |
949 | while (range[j].from < from) | |
950 | range[j].mask &= ~(1 << range[j].from++); | |
951 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
952 | from++; | |
953 | range[j].from = from; | |
954 | } | |
955 | else | |
956 | from = range[j].from; | |
957 | if (range[j].to > to) | |
958 | { | |
959 | while (range[j].to > to) | |
960 | range[j].mask &= ~(1 << range[j].to--); | |
961 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
962 | to--; | |
963 | range[j].to = to; | |
964 | } | |
965 | else | |
966 | to = range[j].to; | |
967 | if (from > to) | |
968 | return -1; | |
969 | } | |
970 | } | |
4485a28e KH |
971 | } |
972 | } | |
973 | ||
974 | /* Decide all fileds from restrictions in RANGE. */ | |
975 | for (i = j = 0; i < n ; i++) | |
976 | { | |
977 | if (j < range[i].from) | |
978 | { | |
979 | if (i == 0 || ! NILP (tmp[i - 1])) | |
980 | /* None of TMP[X] corresponds to Jth field. */ | |
981 | return -1; | |
982 | for (; j < range[i].from; j++) | |
983 | field[j] = Qnil; | |
984 | } | |
985 | field[j++] = tmp[i]; | |
986 | } | |
987 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
988 | return -1; | |
989 | for (; j < XLFD_LAST_INDEX; j++) | |
990 | field[j] = Qnil; | |
991 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
992 | field[XLFD_ENCODING_INDEX] | |
993 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
994 | return 0; | |
995 | } | |
996 | ||
43a1d19b SM |
997 | |
998 | #ifdef ENABLE_CHECKING | |
999 | /* Match a 14-field XLFD pattern against a full XLFD font name. */ | |
1000 | static int | |
1001 | font_match_xlfd (char *pattern, char *name) | |
1002 | { | |
1003 | while (*pattern && *name) | |
1004 | { | |
1005 | if (*pattern == *name) | |
1006 | pattern++; | |
1007 | else if (*pattern == '*') | |
1008 | if (*name == pattern[1]) | |
1009 | pattern += 2; | |
1010 | else | |
1011 | ; | |
1012 | else | |
1013 | return 0; | |
1014 | name++; | |
1015 | } | |
1016 | return 1; | |
1017 | } | |
1018 | ||
1019 | /* Make sure the font object matches the XLFD font name. */ | |
1020 | static int | |
1021 | font_check_xlfd_parse (Lisp_Object font, char *name) | |
1022 | { | |
1023 | char name_check[256]; | |
1024 | font_unparse_xlfd (font, 0, name_check, 255); | |
1025 | return font_match_xlfd (name_check, name); | |
1026 | } | |
1027 | ||
1028 | #endif | |
1029 | ||
35027d0c | 1030 | |
ef18374f | 1031 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
1032 | (font-spec or font-entity). Size property of FONT is set as |
1033 | follows: | |
1034 | specified XLFD fields FONT property | |
1035 | --------------------- ------------- | |
1036 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
1037 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
1038 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
1039 | ||
ec6fe57c | 1040 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 1041 | |
ec6fe57c KH |
1042 | FONT is usually a font-spec, but when this function is called from |
1043 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 1044 | a fully specified XLFD. */ |
c2f5bfd6 KH |
1045 | |
1046 | int | |
ec6fe57c | 1047 | font_parse_xlfd (name, font) |
c2f5bfd6 KH |
1048 | char *name; |
1049 | Lisp_Object font; | |
c2f5bfd6 KH |
1050 | { |
1051 | int len = strlen (name); | |
35027d0c | 1052 | int i, j, n; |
cf23b845 | 1053 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 1054 | Lisp_Object val; |
4485a28e | 1055 | char *p; |
c2f5bfd6 KH |
1056 | |
1057 | if (len > 255) | |
1058 | /* Maximum XLFD name length is 255. */ | |
1059 | return -1; | |
ec6fe57c KH |
1060 | /* Accept "*-.." as a fully specified XLFD. */ |
1061 | if (name[0] == '*' && name[1] == '-') | |
1062 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; | |
1063 | else | |
1064 | i = 0; | |
1065 | for (p = name + i; *p; p++) | |
35027d0c KH |
1066 | if (*p == '-') |
1067 | { | |
1068 | f[i++] = p + 1; | |
1069 | if (i == XLFD_LAST_INDEX) | |
1070 | break; | |
1071 | } | |
1072 | f[i] = name + len; | |
c2f5bfd6 | 1073 | |
2f286d4f KH |
1074 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1075 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1076 | |
ec6fe57c | 1077 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1078 | { |
35027d0c | 1079 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1080 | int pixel_size; |
1081 | ||
2f286d4f KH |
1082 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1083 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1084 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1085 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1086 | { |
2f286d4f | 1087 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1088 | if (! NILP (val)) |
4485a28e | 1089 | { |
2f286d4f | 1090 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1091 | return -1; |
1092 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1093 | } |
1094 | } | |
2f286d4f | 1095 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1096 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1097 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1098 | else | |
1099 | ASET (font, FONT_REGISTRY_INDEX, | |
1100 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1101 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1102 | 1)); | |
ec6fe57c KH |
1103 | p = f[XLFD_PIXEL_INDEX]; |
1104 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1105 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1106 | else |
1107 | { | |
35027d0c KH |
1108 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1109 | if (INTEGERP (val)) | |
ec6fe57c KH |
1110 | ASET (font, FONT_SIZE_INDEX, val); |
1111 | else | |
1112 | { | |
1113 | double point_size = -1; | |
1114 | ||
d0ab1ebe | 1115 | font_assert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1116 | p = f[XLFD_POINT_INDEX]; |
1117 | if (*p == '[') | |
1118 | point_size = parse_matrix (p); | |
1119 | else if (isdigit (*p)) | |
1120 | point_size = atoi (p), point_size /= 10; | |
1121 | if (point_size >= 0) | |
1122 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1123 | } |
1124 | } | |
ec6fe57c | 1125 | |
35027d0c KH |
1126 | ASET (font, FONT_DPI_INDEX, INTERN_FIELD (XLFD_RESY_INDEX)); |
1127 | val = INTERN_FIELD (XLFD_SPACING_INDEX); | |
1128 | if (! NILP (val)) | |
ec6fe57c | 1129 | { |
35027d0c KH |
1130 | val = font_prop_validate_spacing (QCspacing, val); |
1131 | if (! INTEGERP (val)) | |
1132 | return -1; | |
1133 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1134 | } |
ec6fe57c KH |
1135 | p = f[XLFD_AVGWIDTH_INDEX]; |
1136 | if (*p == '~') | |
1137 | p++; | |
35027d0c | 1138 | ASET (font, FONT_AVGWIDTH_INDEX, |
d26424c5 | 1139 | font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0)); |
4485a28e KH |
1140 | } |
1141 | else | |
c2f5bfd6 | 1142 | { |
4485a28e | 1143 | int wild_card_found = 0; |
ec6fe57c | 1144 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1145 | |
35027d0c KH |
1146 | if (FONT_ENTITY_P (font)) |
1147 | return -1; | |
ec6fe57c | 1148 | for (j = 0; j < i; j++) |
4485a28e | 1149 | { |
ec6fe57c | 1150 | if (*f[j] == '*') |
4485a28e | 1151 | { |
ec6fe57c KH |
1152 | if (f[j][1] && f[j][1] != '-') |
1153 | return -1; | |
1154 | prop[j] = Qnil; | |
1155 | wild_card_found = 1; | |
1156 | } | |
ec6fe57c | 1157 | else if (j + 1 < i) |
35027d0c | 1158 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1159 | else |
2f286d4f | 1160 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1161 | } |
1162 | if (! wild_card_found) | |
c2f5bfd6 | 1163 | return -1; |
ec6fe57c | 1164 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1165 | return -1; |
ec6fe57c | 1166 | |
35027d0c KH |
1167 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1168 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1169 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1170 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1171 | if (! NILP (prop[i])) |
35027d0c KH |
1172 | { |
1173 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1174 | return -1; | |
1175 | ASET (font, j, make_number (n)); | |
1176 | } | |
1177 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1178 | val = prop[XLFD_REGISTRY_INDEX]; |
1179 | if (NILP (val)) | |
c2f5bfd6 | 1180 | { |
ec6fe57c KH |
1181 | val = prop[XLFD_ENCODING_INDEX]; |
1182 | if (! NILP (val)) | |
35027d0c | 1183 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1184 | } |
ec6fe57c | 1185 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1186 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1187 | else |
35027d0c KH |
1188 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1189 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1190 | if (! NILP (val)) |
35027d0c | 1191 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1192 | |
1193 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1194 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1195 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1196 | { |
ec6fe57c | 1197 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1198 | |
ec6fe57c KH |
1199 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1200 | } | |
c2f5bfd6 | 1201 | |
35027d0c KH |
1202 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1203 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1204 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1205 | { | |
1206 | val = font_prop_validate_spacing (QCspacing, | |
1207 | prop[XLFD_SPACING_INDEX]); | |
1208 | if (! INTEGERP (val)) | |
1209 | return -1; | |
1210 | ASET (font, FONT_SPACING_INDEX, val); | |
1211 | } | |
ec6fe57c | 1212 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1213 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1214 | } |
1215 | ||
ec6fe57c | 1216 | return 0; |
c2f5bfd6 KH |
1217 | } |
1218 | ||
1219 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1220 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1221 | 0, use PIXEL_SIZE instead. */ | |
1222 | ||
1223 | int | |
1224 | font_unparse_xlfd (font, pixel_size, name, nbytes) | |
1225 | Lisp_Object font; | |
1bb1d99b | 1226 | int pixel_size; |
c2f5bfd6 KH |
1227 | char *name; |
1228 | int nbytes; | |
1229 | { | |
ec6fe57c | 1230 | char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 KH |
1231 | Lisp_Object val; |
1232 | int i, j, len = 0; | |
1233 | ||
d0ab1ebe | 1234 | font_assert (FONTP (font)); |
c2f5bfd6 KH |
1235 | |
1236 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1237 | i++, j++) | |
1238 | { | |
1239 | if (i == FONT_ADSTYLE_INDEX) | |
1240 | j = XLFD_ADSTYLE_INDEX; | |
1241 | else if (i == FONT_REGISTRY_INDEX) | |
1242 | j = XLFD_REGISTRY_INDEX; | |
1243 | val = AREF (font, i); | |
1244 | if (NILP (val)) | |
1bb1d99b KH |
1245 | { |
1246 | if (j == XLFD_REGISTRY_INDEX) | |
1247 | f[j] = "*-*", len += 4; | |
1248 | else | |
1249 | f[j] = "*", len += 2; | |
1250 | } | |
c2f5bfd6 KH |
1251 | else |
1252 | { | |
1253 | if (SYMBOLP (val)) | |
1254 | val = SYMBOL_NAME (val); | |
1bb1d99b KH |
1255 | if (j == XLFD_REGISTRY_INDEX |
1256 | && ! strchr ((char *) SDATA (val), '-')) | |
1257 | { | |
1258 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1259 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1260 | { | |
1261 | f[j] = alloca (SBYTES (val) + 3); | |
1262 | sprintf (f[j], "%s-*", SDATA (val)); | |
1263 | len += SBYTES (val) + 3; | |
1264 | } | |
1265 | else | |
1266 | { | |
1267 | f[j] = alloca (SBYTES (val) + 4); | |
1268 | sprintf (f[j], "%s*-*", SDATA (val)); | |
1269 | len += SBYTES (val) + 4; | |
1270 | } | |
1271 | } | |
1272 | else | |
1273 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
c2f5bfd6 KH |
1274 | } |
1275 | } | |
1276 | ||
1277 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1278 | i++, j++) | |
1279 | { | |
35027d0c | 1280 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 KH |
1281 | if (NILP (val)) |
1282 | f[j] = "*", len += 2; | |
1283 | else | |
1284 | { | |
35027d0c | 1285 | val = SYMBOL_NAME (val); |
c2f5bfd6 KH |
1286 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; |
1287 | } | |
1288 | } | |
1289 | ||
1290 | val = AREF (font, FONT_SIZE_INDEX); | |
d0ab1ebe | 1291 | font_assert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1292 | if (INTEGERP (val)) |
1293 | { | |
35027d0c | 1294 | i = XINT (val); |
81aefea4 SM |
1295 | if (i <= 0) |
1296 | i = pixel_size; | |
c2f5bfd6 | 1297 | if (i > 0) |
81aefea4 SM |
1298 | { |
1299 | f[XLFD_PIXEL_INDEX] = alloca (22); | |
1300 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", i) + 1; | |
1301 | } | |
1302 | else | |
1303 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; | |
c2f5bfd6 KH |
1304 | } |
1305 | else if (FLOATP (val)) | |
1306 | { | |
35027d0c | 1307 | i = XFLOAT_DATA (val) * 10; |
ec6fe57c | 1308 | f[XLFD_PIXEL_INDEX] = alloca (12); |
ec6fe57c | 1309 | len += sprintf (f[XLFD_PIXEL_INDEX], "*-%d", i) + 1; |
c2f5bfd6 KH |
1310 | } |
1311 | else | |
ec6fe57c KH |
1312 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1313 | ||
35027d0c | 1314 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1315 | { |
35027d0c KH |
1316 | i = XINT (AREF (font, FONT_DPI_INDEX)); |
1317 | f[XLFD_RESX_INDEX] = alloca (22); | |
1318 | len += sprintf (f[XLFD_RESX_INDEX], | |
1319 | "%d-%d", i, i) + 1; | |
c2f5bfd6 KH |
1320 | } |
1321 | else | |
35027d0c KH |
1322 | f[XLFD_RESX_INDEX] = "*-*", len += 4; |
1323 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
ec6fe57c | 1324 | { |
35027d0c | 1325 | int spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1326 | |
35027d0c KH |
1327 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1328 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1329 | : spacing <= FONT_SPACING_MONO ? "m" | |
1330 | : "c"); | |
1331 | len += 2; | |
ec6fe57c | 1332 | } |
35027d0c KH |
1333 | else |
1334 | f[XLFD_SPACING_INDEX] = "*", len += 2; | |
1335 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1336 | { | |
1337 | f[XLFD_AVGWIDTH_INDEX] = alloca (11); | |
1338 | len += sprintf (f[XLFD_AVGWIDTH_INDEX], | |
1339 | "%d", XINT (AREF (font, FONT_AVGWIDTH_INDEX))) + 1; | |
1340 | } | |
1341 | else | |
1342 | f[XLFD_AVGWIDTH_INDEX] = "*", len += 2; | |
ec6fe57c | 1343 | len++; /* for terminating '\0'. */ |
c2f5bfd6 KH |
1344 | if (len >= nbytes) |
1345 | return -1; | |
35027d0c | 1346 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1347 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1348 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1349 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1350 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1351 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1352 | f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1353 | } |
1354 | ||
8c102d5b CY |
1355 | /* Parse NAME (null terminated) and store information in FONT |
1356 | (font-spec or font-entity). NAME is supplied in either the | |
1357 | Fontconfig or GTK font name format. If NAME is successfully | |
1358 | parsed, return 0. Otherwise return -1. | |
1359 | ||
1360 | The fontconfig format is | |
1361 | ||
1362 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1363 | ||
1364 | The GTK format is | |
1365 | ||
1366 | FAMILY [PROPS...] [SIZE] | |
1367 | ||
1368 | This function tries to guess which format it is. */ | |
ef18374f KH |
1369 | |
1370 | int | |
ec6fe57c | 1371 | font_parse_fcname (name, font) |
ef18374f KH |
1372 | char *name; |
1373 | Lisp_Object font; | |
ef18374f | 1374 | { |
8c102d5b CY |
1375 | char *p, *q; |
1376 | char *size_beg = NULL, *size_end = NULL; | |
1377 | char *props_beg = NULL, *family_end = NULL; | |
9331887d | 1378 | int len = strlen (name); |
ef18374f | 1379 | |
ec6fe57c KH |
1380 | if (len == 0) |
1381 | return -1; | |
8c102d5b CY |
1382 | |
1383 | for (p = name; *p; p++) | |
ef18374f | 1384 | { |
8c102d5b CY |
1385 | if (*p == '\\' && p[1]) |
1386 | p++; | |
1387 | else if (*p == ':') | |
ef18374f | 1388 | { |
59facb78 | 1389 | props_beg = family_end = p; |
8c102d5b CY |
1390 | break; |
1391 | } | |
1392 | else if (*p == '-') | |
1393 | { | |
b1868a1a | 1394 | int decimal = 0, size_found = 1; |
8c102d5b | 1395 | for (q = p + 1; *q && *q != ':'; q++) |
b1868a1a | 1396 | if (! isdigit(*q)) |
8c102d5b | 1397 | { |
b1868a1a CY |
1398 | if (*q != '.' || decimal) |
1399 | { | |
1400 | size_found = 0; | |
1401 | break; | |
1402 | } | |
1403 | decimal = 1; | |
8c102d5b CY |
1404 | } |
1405 | if (size_found) | |
1406 | { | |
1407 | family_end = p; | |
1408 | size_beg = p + 1; | |
1409 | size_end = q; | |
1410 | break; | |
1411 | } | |
ef18374f | 1412 | } |
ef18374f | 1413 | } |
9331887d | 1414 | |
8c102d5b CY |
1415 | if (family_end) |
1416 | { | |
1417 | /* A fontconfig name with size and/or property data. */ | |
1418 | if (family_end > name) | |
1419 | { | |
1420 | Lisp_Object family; | |
1421 | family = font_intern_prop (name, family_end - name, 1); | |
1422 | ASET (font, FONT_FAMILY_INDEX, family); | |
1423 | } | |
1424 | if (size_beg) | |
1425 | { | |
1426 | double point_size = strtod (size_beg, &size_end); | |
1427 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1428 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1429 | props_beg = size_end; |
8c102d5b CY |
1430 | } |
1431 | if (props_beg) | |
1432 | { | |
d26424c5 | 1433 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1434 | Lisp_Object val; |
8c102d5b | 1435 | |
59facb78 | 1436 | for (p = props_beg; *p; p = q) |
8c102d5b | 1437 | { |
8c102d5b | 1438 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1439 | if (*q != '=') |
1440 | { | |
1441 | /* Must be an enumerated value. */ | |
59facb78 CY |
1442 | int word_len; |
1443 | p = p + 1; | |
1444 | word_len = q - p; | |
8c102d5b | 1445 | val = font_intern_prop (p, q - p, 1); |
9277a69d CY |
1446 | |
1447 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1448 | ||
8c102d5b CY |
1449 | if (PROP_MATCH ("light", 5) |
1450 | || PROP_MATCH ("medium", 6) | |
1451 | || PROP_MATCH ("demibold", 8) | |
1452 | || PROP_MATCH ("bold", 4) | |
1453 | || PROP_MATCH ("black", 5)) | |
1454 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); | |
1455 | else if (PROP_MATCH ("roman", 5) | |
1456 | || PROP_MATCH ("italic", 6) | |
1457 | || PROP_MATCH ("oblique", 7)) | |
1458 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); | |
1459 | else if (PROP_MATCH ("charcell", 8)) | |
1460 | ASET (font, FONT_SPACING_INDEX, | |
1461 | make_number (FONT_SPACING_CHARCELL)); | |
1462 | else if (PROP_MATCH ("mono", 4)) | |
1463 | ASET (font, FONT_SPACING_INDEX, | |
1464 | make_number (FONT_SPACING_MONO)); | |
1465 | else if (PROP_MATCH ("proportional", 12)) | |
1466 | ASET (font, FONT_SPACING_INDEX, | |
1467 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1468 | #undef PROP_MATCH |
8c102d5b | 1469 | } |
59facb78 | 1470 | else |
8c102d5b | 1471 | { |
59facb78 | 1472 | /* KEY=VAL pairs */ |
8c102d5b | 1473 | Lisp_Object key; |
59facb78 | 1474 | int prop; |
51c01100 | 1475 | |
59facb78 | 1476 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1477 | prop = FONT_SIZE_INDEX; |
1478 | else | |
1479 | { | |
1480 | key = font_intern_prop (p, q - p, 1); | |
1481 | prop = get_font_prop_index (key); | |
1482 | } | |
77989187 | 1483 | |
8c102d5b CY |
1484 | p = q + 1; |
1485 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1486 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1487 | |
d26424c5 KH |
1488 | if (prop >= FONT_FOUNDRY_INDEX |
1489 | && prop < FONT_EXTRA_INDEX) | |
1490 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); | |
1491 | else | |
1492 | Ffont_put (font, key, val); | |
8c102d5b | 1493 | } |
d26424c5 | 1494 | p = q; |
8c102d5b | 1495 | } |
8c102d5b CY |
1496 | } |
1497 | } | |
1498 | else | |
ef18374f | 1499 | { |
8c102d5b CY |
1500 | /* Either a fontconfig-style name with no size and property |
1501 | data, or a GTK-style name. */ | |
1502 | Lisp_Object prop; | |
1503 | int word_len, prop_found = 0; | |
ef18374f | 1504 | |
8c102d5b | 1505 | for (p = name; *p; p = *q ? q + 1 : q) |
ef18374f | 1506 | { |
8c102d5b | 1507 | if (isdigit (*p)) |
9331887d | 1508 | { |
8c102d5b | 1509 | int size_found = 1; |
7181ea6a | 1510 | |
8c102d5b CY |
1511 | for (q = p + 1; *q && *q != ' '; q++) |
1512 | if (! isdigit (*q)) | |
1513 | { | |
1514 | size_found = 0; | |
1515 | break; | |
1516 | } | |
1517 | if (size_found) | |
1518 | { | |
1519 | double point_size = strtod (p, &q); | |
1520 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1521 | continue; | |
1522 | } | |
027a33c0 | 1523 | } |
8c102d5b CY |
1524 | |
1525 | for (q = p + 1; *q && *q != ' '; q++) | |
1526 | if (*q == '\\' && q[1]) | |
1527 | q++; | |
1528 | word_len = q - p; | |
1529 | ||
1530 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1531 | ||
1532 | if (PROP_MATCH ("Ultra-Light", 11)) | |
9331887d | 1533 | { |
8c102d5b CY |
1534 | prop_found = 1; |
1535 | prop = font_intern_prop ("ultra-light", 11, 1); | |
1536 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1537 | } |
8c102d5b | 1538 | else if (PROP_MATCH ("Light", 5)) |
9331887d | 1539 | { |
8c102d5b CY |
1540 | prop_found = 1; |
1541 | prop = font_intern_prop ("light", 5, 1); | |
1542 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1543 | } |
8c102d5b | 1544 | else if (PROP_MATCH ("Semi-Bold", 9)) |
9331887d | 1545 | { |
8c102d5b CY |
1546 | prop_found = 1; |
1547 | prop = font_intern_prop ("semi-bold", 9, 1); | |
1548 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1549 | } | |
1550 | else if (PROP_MATCH ("Bold", 4)) | |
1551 | { | |
1552 | prop_found = 1; | |
1553 | prop = font_intern_prop ("bold", 4, 1); | |
1554 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
ef18374f | 1555 | } |
8c102d5b CY |
1556 | else if (PROP_MATCH ("Italic", 6)) |
1557 | { | |
1558 | prop_found = 1; | |
1559 | prop = font_intern_prop ("italic", 4, 1); | |
1560 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1561 | } | |
1562 | else if (PROP_MATCH ("Oblique", 7)) | |
1563 | { | |
1564 | prop_found = 1; | |
1565 | prop = font_intern_prop ("oblique", 7, 1); | |
1566 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1567 | } | |
1568 | else { | |
1569 | if (prop_found) | |
1570 | return -1; /* Unknown property in GTK-style font name. */ | |
1571 | family_end = q; | |
1572 | } | |
ef18374f | 1573 | } |
8c102d5b | 1574 | #undef PROP_MATCH |
9ba6fd41 | 1575 | |
8c102d5b CY |
1576 | if (family_end) |
1577 | { | |
1578 | Lisp_Object family; | |
1579 | family = font_intern_prop (name, family_end - name, 1); | |
1580 | ASET (font, FONT_FAMILY_INDEX, family); | |
1581 | } | |
1582 | } | |
17ab8f5d | 1583 | |
9331887d | 1584 | return 0; |
ef18374f KH |
1585 | } |
1586 | ||
1587 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1588 | NAME (NBYTES length), and return the name length. If | |
1589 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1590 | ||
1591 | int | |
1592 | font_unparse_fcname (font, pixel_size, name, nbytes) | |
1593 | Lisp_Object font; | |
1594 | int pixel_size; | |
1595 | char *name; | |
1596 | int nbytes; | |
1597 | { | |
b1868a1a | 1598 | Lisp_Object family, foundry; |
35027d0c | 1599 | Lisp_Object tail, val; |
ec6fe57c | 1600 | int point_size; |
ec6fe57c | 1601 | int i, len = 1; |
ef18374f | 1602 | char *p; |
a9262bb8 | 1603 | Lisp_Object styles[3]; |
417a1b10 | 1604 | char *style_names[3] = { "weight", "slant", "width" }; |
35027d0c | 1605 | char work[256]; |
ef18374f | 1606 | |
b1868a1a CY |
1607 | family = AREF (font, FONT_FAMILY_INDEX); |
1608 | if (! NILP (family)) | |
1609 | { | |
1610 | if (SYMBOLP (family)) | |
1611 | { | |
1612 | family = SYMBOL_NAME (family); | |
1613 | len += SBYTES (family); | |
1614 | } | |
1615 | else | |
1616 | family = Qnil; | |
1617 | } | |
ec6fe57c KH |
1618 | |
1619 | val = AREF (font, FONT_SIZE_INDEX); | |
1620 | if (INTEGERP (val)) | |
ef18374f | 1621 | { |
ec6fe57c KH |
1622 | if (XINT (val) != 0) |
1623 | pixel_size = XINT (val); | |
1624 | point_size = -1; | |
1625 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1626 | } |
ec6fe57c | 1627 | else if (FLOATP (val)) |
ef18374f | 1628 | { |
ec6fe57c KH |
1629 | pixel_size = -1; |
1630 | point_size = (int) XFLOAT_DATA (val); | |
1631 | len += 11; /* for "-NUM" */ | |
ef18374f | 1632 | } |
ec6fe57c | 1633 | |
b1868a1a CY |
1634 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1635 | if (! NILP (foundry)) | |
1636 | { | |
1637 | if (SYMBOLP (foundry)) | |
1638 | { | |
1639 | foundry = SYMBOL_NAME (foundry); | |
1640 | len += 9 + SBYTES (foundry); /* ":foundry=NAME" */ | |
1641 | } | |
1642 | else | |
1643 | foundry = Qnil; | |
1644 | } | |
ec6fe57c | 1645 | |
35027d0c | 1646 | for (i = 0; i < 3; i++) |
a9262bb8 | 1647 | { |
35027d0c KH |
1648 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
1649 | if (! NILP (styles[i])) | |
1650 | len += sprintf (work, ":%s=%s", style_names[i], | |
1651 | SDATA (SYMBOL_NAME (styles[i]))); | |
ec6fe57c | 1652 | } |
35027d0c KH |
1653 | |
1654 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
f7741ce9 | 1655 | len += sprintf (work, ":dpi=%d", XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c KH |
1656 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
1657 | len += strlen (":spacing=100"); | |
1658 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1659 | len += strlen (":scalable=false"); /* or ":scalable=true" */ | |
1660 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
ec6fe57c | 1661 | { |
35027d0c KH |
1662 | Lisp_Object key = XCAR (XCAR (tail)), val = XCDR (XCAR (tail)); |
1663 | ||
1664 | len += SBYTES (SYMBOL_NAME (key)) + 1; /* for :KEY= */ | |
1665 | if (STRINGP (val)) | |
1666 | len += SBYTES (val); | |
1667 | else if (INTEGERP (val)) | |
1668 | len += sprintf (work, "%d", XINT (val)); | |
1669 | else if (SYMBOLP (val)) | |
1670 | len += (NILP (val) ? 5 : 4); /* for "false" or "true" */ | |
ec6fe57c KH |
1671 | } |
1672 | ||
ef18374f KH |
1673 | if (len > nbytes) |
1674 | return -1; | |
1675 | p = name; | |
b1868a1a CY |
1676 | if (! NILP (family)) |
1677 | p += sprintf (p, "%s", SDATA (family)); | |
ec6fe57c KH |
1678 | if (point_size > 0) |
1679 | { | |
1680 | if (p == name) | |
1681 | p += sprintf (p, "%d", point_size); | |
1682 | else | |
1683 | p += sprintf (p, "-%d", point_size); | |
1684 | } | |
ef18374f KH |
1685 | else if (pixel_size > 0) |
1686 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
35027d0c | 1687 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
a9262bb8 KH |
1688 | p += sprintf (p, ":foundry=%s", |
1689 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1690 | for (i = 0; i < 3; i++) | |
35027d0c | 1691 | if (! NILP (styles[i])) |
a9262bb8 | 1692 | p += sprintf (p, ":%s=%s", style_names[i], |
35027d0c KH |
1693 | SDATA (SYMBOL_NAME (styles[i]))); |
1694 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
1695 | p += sprintf (p, ":dpi=%d", XINT (AREF (font, FONT_DPI_INDEX))); | |
1696 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
1697 | p += sprintf (p, ":spacing=%d", XINT (AREF (font, FONT_SPACING_INDEX))); | |
1698 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1699 | { | |
1700 | if (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0) | |
1701 | p += sprintf (p, ":scalable=true"); | |
1702 | else | |
1703 | p += sprintf (p, ":scalable=false"); | |
1704 | } | |
ef18374f KH |
1705 | return (p - name); |
1706 | } | |
1707 | ||
b1868a1a CY |
1708 | /* Store GTK-style font name of FONT (font-spec or font-entity) in |
1709 | NAME (NBYTES length), and return the name length. F is the frame | |
1710 | on which the font is displayed; it is used to calculate the point | |
1711 | size. */ | |
1712 | ||
1713 | int | |
1714 | font_unparse_gtkname (font, f, name, nbytes) | |
1715 | Lisp_Object font; | |
1716 | struct frame *f; | |
1717 | char *name; | |
1718 | int nbytes; | |
1719 | { | |
1720 | char *p; | |
1721 | int len = 1; | |
1722 | Lisp_Object family, weight, slant, size; | |
1723 | int point_size = -1; | |
1724 | ||
1725 | family = AREF (font, FONT_FAMILY_INDEX); | |
1726 | if (! NILP (family)) | |
1727 | { | |
1728 | if (! SYMBOLP (family)) | |
1729 | return -1; | |
1730 | family = SYMBOL_NAME (family); | |
1731 | len += SBYTES (family); | |
1732 | } | |
1733 | ||
1734 | weight = font_style_symbolic (font, FONT_WEIGHT_INDEX, 0); | |
93eed26b | 1735 | if (EQ (weight, Qnormal)) |
b1868a1a CY |
1736 | weight = Qnil; |
1737 | else if (! NILP (weight)) | |
1738 | { | |
1739 | weight = SYMBOL_NAME (weight); | |
1740 | len += SBYTES (weight); | |
1741 | } | |
1742 | ||
1743 | slant = font_style_symbolic (font, FONT_SLANT_INDEX, 0); | |
93eed26b | 1744 | if (EQ (slant, Qnormal)) |
b1868a1a CY |
1745 | slant = Qnil; |
1746 | else if (! NILP (slant)) | |
1747 | { | |
1748 | slant = SYMBOL_NAME (slant); | |
1749 | len += SBYTES (slant); | |
1750 | } | |
1751 | ||
1752 | size = AREF (font, FONT_SIZE_INDEX); | |
1753 | /* Convert pixel size to point size. */ | |
1754 | if (INTEGERP (size)) | |
1755 | { | |
1756 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
1757 | int dpi = 75; | |
1758 | if (INTEGERP (font_dpi)) | |
1759 | dpi = XINT (font_dpi); | |
1760 | else if (f) | |
1761 | dpi = f->resy; | |
1762 | point_size = PIXEL_TO_POINT (XINT (size), dpi); | |
1763 | len += 11; | |
1764 | } | |
1765 | else if (FLOATP (size)) | |
1766 | { | |
1767 | point_size = (int) XFLOAT_DATA (size); | |
1768 | len += 11; | |
1769 | } | |
1770 | ||
1771 | if (len > nbytes) | |
1772 | return -1; | |
1773 | ||
1774 | p = name + sprintf (name, "%s", SDATA (family)); | |
1775 | ||
1776 | if (! NILP (weight)) | |
1777 | { | |
1778 | char *q = p; | |
1779 | p += sprintf (p, " %s", SDATA (weight)); | |
1780 | q[1] = toupper (q[1]); | |
1781 | } | |
1782 | ||
1783 | if (! NILP (slant)) | |
1784 | { | |
1785 | char *q = p; | |
1786 | p += sprintf (p, " %s", SDATA (slant)); | |
1787 | q[1] = toupper (q[1]); | |
1788 | } | |
1789 | ||
1790 | if (point_size > 0) | |
1791 | p += sprintf (p, " %d", point_size); | |
1792 | ||
1793 | return (p - name); | |
1794 | } | |
1795 | ||
ef18374f KH |
1796 | /* Parse NAME (null terminated) and store information in FONT |
1797 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1798 | 0. Otherwise return -1. */ |
ef18374f KH |
1799 | |
1800 | static int | |
ec6fe57c | 1801 | font_parse_name (name, font) |
ef18374f KH |
1802 | char *name; |
1803 | Lisp_Object font; | |
ef18374f KH |
1804 | { |
1805 | if (name[0] == '-' || index (name, '*')) | |
e950d6f1 | 1806 | return font_parse_xlfd (name, font); |
ec6fe57c | 1807 | return font_parse_fcname (name, font); |
ef18374f KH |
1808 | } |
1809 | ||
35027d0c KH |
1810 | |
1811 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1812 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1813 | part. */ | |
45eb10fb | 1814 | |
c2f5bfd6 | 1815 | void |
35027d0c KH |
1816 | font_parse_family_registry (family, registry, font_spec) |
1817 | Lisp_Object family, registry, font_spec; | |
c2f5bfd6 | 1818 | { |
35027d0c KH |
1819 | int len; |
1820 | char *p0, *p1; | |
1821 | ||
d0ab1ebe KH |
1822 | if (! NILP (family) |
1823 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1824 | { |
35027d0c KH |
1825 | CHECK_STRING (family); |
1826 | len = SBYTES (family); | |
1827 | p0 = (char *) SDATA (family); | |
1828 | p1 = index (p0, '-'); | |
1829 | if (p1) | |
c2f5bfd6 | 1830 | { |
d0ab1ebe KH |
1831 | if ((*p0 != '*' || p1 - p0 > 1) |
1832 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) | |
2f286d4f | 1833 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1834 | p1++; |
1835 | len -= p1 - p0; | |
2f286d4f | 1836 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1837 | } |
35027d0c KH |
1838 | else |
1839 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1840 | } |
35027d0c | 1841 | if (! NILP (registry)) |
c2f5bfd6 | 1842 | { |
35027d0c KH |
1843 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1844 | CHECK_STRING (registry); | |
1845 | len = SBYTES (registry); | |
1846 | p0 = (char *) SDATA (registry); | |
1847 | p1 = index (p0, '-'); | |
1848 | if (! p1) | |
c2f5bfd6 | 1849 | { |
35027d0c KH |
1850 | if (SDATA (registry)[len - 1] == '*') |
1851 | registry = concat2 (registry, build_string ("-*")); | |
1852 | else | |
1853 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1854 | } |
35027d0c KH |
1855 | registry = Fdowncase (registry); |
1856 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1857 | } |
1858 | } | |
1859 | ||
45eb10fb | 1860 | \f |
35027d0c KH |
1861 | /* This part (through the next ^L) is still experimental and not |
1862 | tested much. We may drastically change codes. */ | |
10d16101 | 1863 | |
45eb10fb | 1864 | /* OTF handler */ |
10d16101 | 1865 | |
6a3dadd2 KH |
1866 | #if 0 |
1867 | ||
e950d6f1 KH |
1868 | #define LGSTRING_HEADER_SIZE 6 |
1869 | #define LGSTRING_GLYPH_SIZE 8 | |
1870 | ||
1871 | static int | |
1872 | check_gstring (gstring) | |
1873 | Lisp_Object gstring; | |
1874 | { | |
1875 | Lisp_Object val; | |
1876 | int i, j; | |
1877 | ||
1878 | CHECK_VECTOR (gstring); | |
1879 | val = AREF (gstring, 0); | |
1880 | CHECK_VECTOR (val); | |
1881 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1882 | goto err; | |
1883 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1884 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1885 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1886 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1887 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1888 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1889 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1890 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1891 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1892 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1893 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1894 | |
071132a9 | 1895 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1896 | { |
1897 | val = LGSTRING_GLYPH (gstring, i); | |
1898 | CHECK_VECTOR (val); | |
1899 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1900 | goto err; | |
f9ffa1ea | 1901 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1902 | break; |
f9ffa1ea SM |
1903 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1904 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1905 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1906 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1907 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1908 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1909 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1910 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1911 | { |
f9ffa1ea | 1912 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1913 | CHECK_VECTOR (val); |
1914 | if (ASIZE (val) < 3) | |
1915 | goto err; | |
1916 | for (j = 0; j < 3; j++) | |
1917 | CHECK_NUMBER (AREF (val, j)); | |
1918 | } | |
1919 | } | |
1920 | return i; | |
1921 | err: | |
1922 | error ("Invalid glyph-string format"); | |
1923 | return -1; | |
1924 | } | |
1925 | ||
cf385d93 KH |
1926 | static void |
1927 | check_otf_features (otf_features) | |
1928 | Lisp_Object otf_features; | |
1929 | { | |
35027d0c | 1930 | Lisp_Object val; |
cf385d93 KH |
1931 | |
1932 | CHECK_CONS (otf_features); | |
1933 | CHECK_SYMBOL (XCAR (otf_features)); | |
1934 | otf_features = XCDR (otf_features); | |
1935 | CHECK_CONS (otf_features); | |
1936 | CHECK_SYMBOL (XCAR (otf_features)); | |
1937 | otf_features = XCDR (otf_features); | |
1938 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1939 | { | |
1940 | CHECK_SYMBOL (Fcar (val)); | |
1941 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1942 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1943 | } | |
1944 | otf_features = XCDR (otf_features); | |
1945 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1946 | { | |
1947 | CHECK_SYMBOL (Fcar (val)); | |
1948 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1949 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1950 | } | |
1951 | } | |
1952 | ||
c2f5bfd6 KH |
1953 | #ifdef HAVE_LIBOTF |
1954 | #include <otf.h> | |
1955 | ||
733fd013 | 1956 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1957 | |
1958 | static Lisp_Object | |
1959 | otf_tag_symbol (tag) | |
1960 | OTF_Tag tag; | |
1961 | { | |
1962 | char name[5]; | |
1963 | ||
1964 | OTF_tag_name (tag, name); | |
1965 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1966 | } | |
1967 | ||
1968 | static OTF * | |
35027d0c KH |
1969 | otf_open (file) |
1970 | Lisp_Object file; | |
c2f5bfd6 | 1971 | { |
35027d0c | 1972 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1973 | OTF *otf; |
1974 | ||
1975 | if (! NILP (val)) | |
1976 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1977 | else | |
c2f5bfd6 | 1978 | { |
35027d0c | 1979 | otf = STRINGP (file) ? OTF_open ((char *) SDATA (file)) : NULL; |
733fd013 | 1980 | val = make_save_value (otf, 0); |
35027d0c | 1981 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1982 | } |
733fd013 | 1983 | return otf; |
c2f5bfd6 KH |
1984 | } |
1985 | ||
1986 | ||
1987 | /* Return a list describing which scripts/languages FONT supports by | |
1988 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1989 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1990 | |
1991 | Lisp_Object | |
1992 | font_otf_capability (font) | |
1993 | struct font *font; | |
1994 | { | |
1995 | OTF *otf; | |
1996 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1997 | int i; | |
1998 | ||
35027d0c | 1999 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
2000 | if (! otf) |
2001 | return Qnil; | |
2002 | for (i = 0; i < 2; i++) | |
2003 | { | |
2004 | OTF_GSUB_GPOS *gsub_gpos; | |
2005 | Lisp_Object script_list = Qnil; | |
2006 | int j; | |
2007 | ||
2008 | if (OTF_get_features (otf, i == 0) < 0) | |
2009 | continue; | |
2010 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
2011 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
2012 | { | |
2013 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
2014 | Lisp_Object langsys_list = Qnil; | |
2015 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
2016 | int k; | |
2017 | ||
2018 | for (k = script->LangSysCount; k >= 0; k--) | |
2019 | { | |
2020 | OTF_LangSys *langsys; | |
2021 | Lisp_Object feature_list = Qnil; | |
2022 | Lisp_Object langsys_tag; | |
2023 | int l; | |
2024 | ||
e80e09b4 | 2025 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
2026 | { |
2027 | langsys = &script->DefaultLangSys; | |
2028 | langsys_tag = Qnil; | |
2029 | } | |
2030 | else | |
2031 | { | |
2032 | langsys = script->LangSys + k; | |
2033 | langsys_tag | |
2034 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
2035 | } | |
e80e09b4 | 2036 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
2037 | { |
2038 | OTF_Feature *feature | |
2039 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
2040 | Lisp_Object feature_tag | |
2041 | = otf_tag_symbol (feature->FeatureTag); | |
2042 | ||
2043 | feature_list = Fcons (feature_tag, feature_list); | |
2044 | } | |
2045 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
2046 | langsys_list); | |
2047 | } | |
2048 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
2049 | script_list); | |
2050 | } | |
2051 | ||
2052 | if (i == 0) | |
2053 | XSETCAR (capability, script_list); | |
2054 | else | |
2055 | XSETCDR (capability, script_list); | |
2056 | } | |
2057 | ||
2058 | return capability; | |
2059 | } | |
2060 | ||
733fd013 KH |
2061 | /* Parse OTF features in SPEC and write a proper features spec string |
2062 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
2063 | assured that the sufficient memory has already allocated for | |
2064 | FEATURES. */ | |
2065 | ||
e80e09b4 | 2066 | static void |
733fd013 | 2067 | generate_otf_features (spec, features) |
c2f5bfd6 | 2068 | Lisp_Object spec; |
733fd013 | 2069 | char *features; |
c2f5bfd6 KH |
2070 | { |
2071 | Lisp_Object val; | |
35027d0c | 2072 | char *p; |
c2f5bfd6 KH |
2073 | int asterisk; |
2074 | ||
733fd013 | 2075 | p = features; |
e80e09b4 | 2076 | *p = '\0'; |
c2f5bfd6 KH |
2077 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
2078 | { | |
2079 | val = XCAR (spec); | |
e80e09b4 KH |
2080 | CHECK_SYMBOL (val); |
2081 | if (p > features) | |
733fd013 | 2082 | *p++ = ','; |
c2f5bfd6 KH |
2083 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
2084 | { | |
2085 | asterisk = 1; | |
e80e09b4 | 2086 | *p++ = '*'; |
c2f5bfd6 KH |
2087 | } |
2088 | else if (! asterisk) | |
e80e09b4 KH |
2089 | { |
2090 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
2091 | p += sprintf (p, "%s", SDATA (val)); |
2092 | } | |
c2f5bfd6 | 2093 | else |
e80e09b4 KH |
2094 | { |
2095 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
2096 | p += sprintf (p, "~%s", SDATA (val)); |
2097 | } | |
c2f5bfd6 | 2098 | } |
e80e09b4 KH |
2099 | if (CONSP (spec)) |
2100 | error ("OTF spec too long"); | |
2101 | } | |
2102 | ||
733fd013 KH |
2103 | Lisp_Object |
2104 | font_otf_DeviceTable (device_table) | |
2105 | OTF_DeviceTable *device_table; | |
2106 | { | |
2107 | int len = device_table->StartSize - device_table->EndSize + 1; | |
2108 | ||
2109 | return Fcons (make_number (len), | |
2110 | make_unibyte_string (device_table->DeltaValue, len)); | |
2111 | } | |
2112 | ||
2113 | Lisp_Object | |
2114 | font_otf_ValueRecord (value_format, value_record) | |
2115 | int value_format; | |
2116 | OTF_ValueRecord *value_record; | |
2117 | { | |
2118 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
2119 | ||
2120 | if (value_format & OTF_XPlacement) | |
43c0454d | 2121 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 2122 | if (value_format & OTF_YPlacement) |
43c0454d | 2123 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 2124 | if (value_format & OTF_XAdvance) |
43c0454d | 2125 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 2126 | if (value_format & OTF_YAdvance) |
43c0454d | 2127 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
2128 | if (value_format & OTF_XPlaDevice) |
2129 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
2130 | if (value_format & OTF_YPlaDevice) | |
2131 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
2132 | if (value_format & OTF_XAdvDevice) | |
2133 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
2134 | if (value_format & OTF_YAdvDevice) | |
2135 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
2136 | return val; | |
2137 | } | |
2138 | ||
2139 | Lisp_Object | |
2140 | font_otf_Anchor (anchor) | |
2141 | OTF_Anchor *anchor; | |
2142 | { | |
2143 | Lisp_Object val; | |
2144 | ||
2145 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2146 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2147 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2148 | if (anchor->AnchorFormat == 2) | |
2149 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2150 | else | |
2151 | { | |
2152 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2153 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2154 | } | |
2155 | return val; | |
2156 | } | |
c2f5bfd6 | 2157 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2158 | #endif /* 0 */ |
c2f5bfd6 | 2159 | |
c2f5bfd6 KH |
2160 | \f |
2161 | /* Font sorting */ | |
2162 | ||
4007dd1c | 2163 | static unsigned font_score P_ ((Lisp_Object, Lisp_Object *)); |
c2f5bfd6 KH |
2164 | static int font_compare P_ ((const void *, const void *)); |
2165 | static Lisp_Object font_sort_entites P_ ((Lisp_Object, Lisp_Object, | |
7181ea6a | 2166 | Lisp_Object, int)); |
c2f5bfd6 KH |
2167 | |
2168 | /* We sort fonts by scoring each of them against a specified | |
2169 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2170 | the value is, the closer the font is to the font-spec. | |
2171 | ||
4007dd1c KH |
2172 | The lowest 2 bits of the score is used for driver type. The font |
2173 | available by the most preferred font driver is 0. | |
35027d0c | 2174 | |
4007dd1c | 2175 | Each 7-bit in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2176 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2177 | ||
2178 | /* How many bits to shift to store the difference value of each font | |
35027d0c KH |
2179 | property in a score. Note that flots for FONT_TYPE_INDEX and |
2180 | FONT_REGISTRY_INDEX are not used. */ | |
c2f5bfd6 KH |
2181 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2182 | ||
9331887d KH |
2183 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2184 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2185 | SPEC_PROP. */ |
c2f5bfd6 KH |
2186 | |
2187 | static unsigned | |
4007dd1c | 2188 | font_score (entity, spec_prop) |
9331887d | 2189 | Lisp_Object entity, *spec_prop; |
c2f5bfd6 KH |
2190 | { |
2191 | unsigned score = 0; | |
2192 | int i; | |
c2f5bfd6 | 2193 | |
35027d0c KH |
2194 | /* Score three style numeric fields. Maximum difference is 127. */ |
2195 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2196 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2197 | { | |
2198 | int diff = (XINT (AREF (entity, i)) >> 8) - (XINT (spec_prop[i]) >> 8); | |
2199 | ||
2200 | if (diff < 0) | |
2201 | diff = - diff; | |
f4cc0153 KH |
2202 | if (diff > 0) |
2203 | score |= min (diff, 127) << sort_shift_bits[i]; | |
35027d0c KH |
2204 | } |
2205 | ||
2206 | /* Score the size. Maximum difference is 127. */ | |
2207 | i = FONT_SIZE_INDEX; | |
2641e213 | 2208 | if (! NILP (spec_prop[i]) && XINT (AREF (entity, i)) > 0) |
35027d0c KH |
2209 | { |
2210 | /* We use the higher 6-bit for the actual size difference. The | |
2211 | lowest bit is set if the DPI is different. */ | |
2212 | int diff = XINT (spec_prop[i]) - XINT (AREF (entity, i)); | |
2213 | ||
2214 | if (diff < 0) | |
2215 | diff = - diff; | |
d0ab1ebe | 2216 | diff <<= 1; |
35027d0c KH |
2217 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2218 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2219 | diff |= 1; | |
2220 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; | |
c2f5bfd6 KH |
2221 | } |
2222 | ||
2223 | return score; | |
2224 | } | |
2225 | ||
2226 | ||
2227 | /* The comparison function for qsort. */ | |
2228 | ||
2229 | static int | |
2230 | font_compare (d1, d2) | |
2231 | const void *d1, *d2; | |
2232 | { | |
35027d0c | 2233 | return (*(unsigned *) d1 - *(unsigned *) d2); |
c2f5bfd6 KH |
2234 | } |
2235 | ||
2236 | ||
2237 | /* The structure for elements being sorted by qsort. */ | |
2238 | struct font_sort_data | |
2239 | { | |
2240 | unsigned score; | |
2241 | Lisp_Object entity; | |
2242 | }; | |
2243 | ||
2244 | ||
2245 | /* Sort font-entities in vector VEC by closeness to font-spec PREFER. | |
2246 | If PREFER specifies a point-size, calculate the corresponding | |
9331887d | 2247 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2248 | of FRAME before sorting. |
35027d0c KH |
2249 | |
2250 | If BEST-ONLY is nonzero, return the best matching entity. Otherwise, | |
2251 | return the sorted VEC. */ | |
c2f5bfd6 KH |
2252 | |
2253 | static Lisp_Object | |
7181ea6a KH |
2254 | font_sort_entites (vec, prefer, frame, best_only) |
2255 | Lisp_Object vec, prefer, frame; | |
35027d0c | 2256 | int best_only; |
c2f5bfd6 | 2257 | { |
9331887d | 2258 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
c2f5bfd6 KH |
2259 | int len, i; |
2260 | struct font_sort_data *data; | |
35027d0c | 2261 | unsigned best_score; |
4007dd1c KH |
2262 | Lisp_Object best_entity, driver_type; |
2263 | int driver_order; | |
2264 | struct frame *f = XFRAME (frame); | |
2265 | struct font_driver_list *list; | |
c2f5bfd6 KH |
2266 | USE_SAFE_ALLOCA; |
2267 | ||
2268 | len = ASIZE (vec); | |
2269 | if (len <= 1) | |
35027d0c | 2270 | return best_only ? AREF (vec, 0) : vec; |
c2f5bfd6 | 2271 | |
2641e213 | 2272 | for (i = FONT_WEIGHT_INDEX; i <= FONT_DPI_INDEX; i++) |
9331887d | 2273 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2274 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2275 | prefer_prop[FONT_SIZE_INDEX] | |
2276 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2277 | ||
c2f5bfd6 KH |
2278 | /* Scoring and sorting. */ |
2279 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * len); | |
35027d0c | 2280 | best_score = 0xFFFFFFFF; |
4007dd1c KH |
2281 | /* We are sure that the length of VEC > 1. */ |
2282 | driver_type = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2283 | for (driver_order = 0, list = f->font_driver_list; list; | |
2284 | driver_order++, list = list->next) | |
2285 | if (EQ (driver_type, list->driver->type)) | |
2286 | break; | |
2287 | best_entity = data[0].entity = AREF (vec, 0); | |
2288 | best_score = data[0].score | |
2289 | = font_score (data[0].entity, prefer_prop) | driver_order; | |
c2f5bfd6 KH |
2290 | for (i = 0; i < len; i++) |
2291 | { | |
4007dd1c KH |
2292 | if (!EQ (driver_type, AREF (AREF (vec, i), FONT_TYPE_INDEX))) |
2293 | for (driver_order = 0, list = f->font_driver_list; list; | |
2294 | driver_order++, list = list->next) | |
2295 | if (EQ (driver_type, list->driver->type)) | |
2296 | break; | |
c2f5bfd6 | 2297 | data[i].entity = AREF (vec, i); |
4007dd1c | 2298 | data[i].score = font_score (data[i].entity, prefer_prop) | driver_order; |
35027d0c KH |
2299 | if (best_only && best_score > data[i].score) |
2300 | { | |
2301 | best_score = data[i].score; | |
2302 | best_entity = data[i].entity; | |
2303 | if (best_score == 0) | |
2304 | break; | |
2305 | } | |
c2f5bfd6 | 2306 | } |
7181ea6a | 2307 | if (! best_only) |
35027d0c KH |
2308 | { |
2309 | qsort (data, len, sizeof *data, font_compare); | |
2310 | for (i = 0; i < len; i++) | |
2311 | ASET (vec, i, data[i].entity); | |
2312 | } | |
2313 | else | |
2314 | vec = best_entity; | |
c2f5bfd6 KH |
2315 | SAFE_FREE (); |
2316 | ||
d0ab1ebe | 2317 | font_add_log ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2318 | return vec; |
2319 | } | |
2320 | ||
2321 | \f | |
2322 | /* API of Font Service Layer. */ | |
2323 | ||
45eb10fb KH |
2324 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2325 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2326 | function with font_sort_order after setting up it. */ | |
2327 | ||
c2f5bfd6 KH |
2328 | void |
2329 | font_update_sort_order (order) | |
2330 | int *order; | |
2331 | { | |
35027d0c | 2332 | int i, shift_bits; |
c2f5bfd6 | 2333 | |
943b7eea | 2334 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2335 | { |
2336 | int xlfd_idx = order[i]; | |
2337 | ||
2338 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2339 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2340 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2341 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2342 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2343 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2344 | else | |
2345 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2346 | } | |
2347 | } | |
2348 | ||
51c13510 KH |
2349 | static int |
2350 | font_check_otf_features (script, langsys, features, table) | |
2351 | Lisp_Object script, langsys, features, table; | |
2352 | { | |
2353 | Lisp_Object val; | |
2354 | int negative; | |
2355 | ||
2356 | table = assq_no_quit (script, table); | |
2357 | if (NILP (table)) | |
2358 | return 0; | |
2359 | table = XCDR (table); | |
2360 | if (! NILP (langsys)) | |
2361 | { | |
2362 | table = assq_no_quit (langsys, table); | |
2363 | if (NILP (table)) | |
2364 | return 0; | |
2365 | } | |
2366 | else | |
2367 | { | |
2368 | val = assq_no_quit (Qnil, table); | |
2369 | if (NILP (val)) | |
2370 | table = XCAR (table); | |
2371 | else | |
2372 | table = val; | |
2373 | } | |
2374 | table = XCDR (table); | |
2375 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2376 | { | |
2377 | if (NILP (XCAR (features))) | |
2378 | negative = 1; | |
2379 | if (NILP (Fmemq (XCAR (features), table)) != negative) | |
2380 | return 0; | |
2381 | } | |
2382 | return 1; | |
2383 | } | |
2384 | ||
2385 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2386 | ||
2387 | static int | |
3cba9369 | 2388 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2389 | { |
2390 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2391 | ||
2392 | script = XCAR (spec); | |
2393 | spec = XCDR (spec); | |
2394 | if (! NILP (spec)) | |
2395 | { | |
2396 | langsys = XCAR (spec); | |
2397 | spec = XCDR (spec); | |
2398 | if (! NILP (spec)) | |
2399 | { | |
2400 | gsub = XCAR (spec); | |
2401 | spec = XCDR (spec); | |
2402 | if (! NILP (spec)) | |
2403 | gpos = XCAR (spec); | |
2404 | } | |
2405 | } | |
2406 | ||
2407 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2408 | XCAR (otf_capability))) | |
2409 | return 0; | |
2410 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2411 | XCDR (otf_capability))) | |
2412 | return 0; | |
2413 | return 1; | |
2414 | } | |
2415 | ||
45eb10fb | 2416 | |
51c13510 KH |
2417 | |
2418 | /* Check if FONT (font-entity or font-object) matches with the font | |
2419 | specification SPEC. */ | |
45eb10fb | 2420 | |
ef18374f | 2421 | int |
51c13510 KH |
2422 | font_match_p (spec, font) |
2423 | Lisp_Object spec, font; | |
ef18374f | 2424 | { |
51c13510 KH |
2425 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2426 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2427 | int i; |
2428 | ||
51c13510 KH |
2429 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2430 | if (! NILP (AREF (spec, i)) | |
2431 | && ! NILP (AREF (font, i)) | |
2432 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2433 | return 0; | |
2434 | props = XFONT_SPEC (spec)->props; | |
2435 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2436 | { | |
2437 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2438 | prop[i] = AREF (spec, i); | |
2439 | prop[FONT_SIZE_INDEX] | |
2440 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2441 | props = prop; | |
2442 | } | |
2443 | ||
2444 | if (font_score (font, props) > 0) | |
2445 | return 0; | |
2446 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2447 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2448 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2449 | { |
51c13510 KH |
2450 | Lisp_Object key = XCAR (XCAR (extra)); |
2451 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2452 | ||
2453 | if (EQ (key, QClang)) | |
2454 | { | |
2455 | val2 = assq_no_quit (key, font_extra); | |
2456 | if (NILP (val2)) | |
2457 | return 0; | |
2458 | val2 = XCDR (val2); | |
2459 | if (CONSP (val)) | |
2460 | { | |
2461 | if (! CONSP (val2)) | |
2462 | return 0; | |
2463 | while (CONSP (val)) | |
2464 | if (NILP (Fmemq (val, val2))) | |
2465 | return 0; | |
2466 | } | |
2467 | else | |
2468 | if (CONSP (val2) | |
2469 | ? NILP (Fmemq (val, XCDR (val2))) | |
2470 | : ! EQ (val, val2)) | |
2471 | return 0; | |
2472 | } | |
2473 | else if (EQ (key, QCscript)) | |
2474 | { | |
2475 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2476 | if (CONSP (val2)) |
2477 | { | |
2478 | val2 = XCDR (val2); | |
2479 | if (CONSP (val2)) | |
2480 | { | |
2481 | /* All characters in the list must be supported. */ | |
2482 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2483 | { | |
2484 | if (! NATNUMP (XCAR (val2))) | |
2485 | continue; | |
2486 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2487 | == FONT_INVALID_CODE) | |
2488 | return 0; | |
2489 | } | |
2490 | } | |
2491 | else if (VECTORP (val2)) | |
2492 | { | |
2493 | /* At most one character in the vector must be supported. */ | |
2494 | for (i = 0; i < ASIZE (val2); i++) | |
2495 | { | |
2496 | if (! NATNUMP (AREF (val2, i))) | |
2497 | continue; | |
2498 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2499 | != FONT_INVALID_CODE) | |
f5485732 | 2500 | break; |
5bdd4dd2 KH |
2501 | } |
2502 | if (i == ASIZE (val2)) | |
2503 | return 0; | |
2504 | } | |
2505 | } | |
51c13510 KH |
2506 | } |
2507 | else if (EQ (key, QCotf)) | |
2508 | { | |
2509 | struct font *fontp; | |
2510 | ||
2511 | if (! FONT_OBJECT_P (font)) | |
2512 | return 0; | |
2513 | fontp = XFONT_OBJECT (font); | |
2514 | if (! fontp->driver->otf_capability) | |
2515 | return 0; | |
2516 | val2 = fontp->driver->otf_capability (fontp); | |
2517 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2518 | return 0; | |
2519 | } | |
35027d0c KH |
2520 | } |
2521 | ||
51c13510 | 2522 | return 1; |
ef18374f | 2523 | } |
ca4da08a | 2524 | \f |
819e81df | 2525 | |
ca4da08a KH |
2526 | /* Font cache |
2527 | ||
2528 | Each font backend has the callback function get_cache, and it | |
2529 | returns a cons cell of which cdr part can be freely used for | |
2530 | caching fonts. The cons cell may be shared by multiple frames | |
2531 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2532 | ||
2533 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2534 | ||
2535 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2536 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2537 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2538 | ||
2539 | static void font_prepare_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2540 | static void font_finish_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2541 | static Lisp_Object font_get_cache P_ ((FRAME_PTR, struct font_driver *)); | |
2542 | static void font_clear_cache P_ ((FRAME_PTR, Lisp_Object, | |
2543 | struct font_driver *)); | |
2544 | ||
2545 | static void | |
2546 | font_prepare_cache (f, driver) | |
2547 | FRAME_PTR f; | |
2548 | struct font_driver *driver; | |
2549 | { | |
2550 | Lisp_Object cache, val; | |
2551 | ||
2552 | cache = driver->get_cache (f); | |
2553 | val = XCDR (cache); | |
2554 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2555 | val = XCDR (val); | |
2556 | if (NILP (val)) | |
2557 | { | |
2558 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2559 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2560 | } | |
2561 | else | |
2562 | { | |
2563 | val = XCDR (XCAR (val)); | |
2564 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2565 | } | |
2566 | } | |
2567 | ||
43c0454d | 2568 | |
ca4da08a KH |
2569 | static void |
2570 | font_finish_cache (f, driver) | |
2571 | FRAME_PTR f; | |
2572 | struct font_driver *driver; | |
2573 | { | |
2574 | Lisp_Object cache, val, tmp; | |
2575 | ||
2576 | ||
2577 | cache = driver->get_cache (f); | |
2578 | val = XCDR (cache); | |
2579 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2580 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2581 | font_assert (! NILP (val)); |
ca4da08a | 2582 | tmp = XCDR (XCAR (val)); |
43c0454d | 2583 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2584 | if (XINT (XCAR (tmp)) == 0) |
2585 | { | |
2586 | font_clear_cache (f, XCAR (val), driver); | |
2587 | XSETCDR (cache, XCDR (val)); | |
2588 | } | |
ca4da08a KH |
2589 | } |
2590 | ||
43c0454d | 2591 | |
ca4da08a KH |
2592 | static Lisp_Object |
2593 | font_get_cache (f, driver) | |
2594 | FRAME_PTR f; | |
2595 | struct font_driver *driver; | |
2596 | { | |
2597 | Lisp_Object val = driver->get_cache (f); | |
2598 | Lisp_Object type = driver->type; | |
2599 | ||
d0ab1ebe | 2600 | font_assert (CONSP (val)); |
ca4da08a | 2601 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2602 | font_assert (CONSP (val)); |
ca4da08a KH |
2603 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2604 | val = XCDR (XCAR (val)); | |
2605 | return val; | |
2606 | } | |
2607 | ||
43c0454d KH |
2608 | static int num_fonts; |
2609 | ||
ca4da08a KH |
2610 | static void |
2611 | font_clear_cache (f, cache, driver) | |
2612 | FRAME_PTR f; | |
2613 | Lisp_Object cache; | |
2614 | struct font_driver *driver; | |
2615 | { | |
2616 | Lisp_Object tail, elt; | |
51c01100 | 2617 | |
ca4da08a KH |
2618 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2619 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2620 | { | |
2621 | elt = XCAR (tail); | |
be9442ad | 2622 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt)) && VECTORP (XCDR (elt))) |
ca4da08a KH |
2623 | { |
2624 | Lisp_Object vec = XCDR (elt); | |
2625 | int i; | |
2626 | ||
2627 | for (i = 0; i < ASIZE (vec); i++) | |
2628 | { | |
2629 | Lisp_Object entity = AREF (vec, i); | |
2630 | ||
2631 | if (EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
2632 | { | |
2633 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2634 | ||
2635 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2636 | { | |
2637 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2638 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2639 | |
5e634ec9 KH |
2640 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2641 | { | |
2642 | font_assert (font && driver == font->driver); | |
2643 | driver->close (f, font); | |
2644 | num_fonts--; | |
2645 | } | |
ca4da08a KH |
2646 | } |
2647 | if (driver->free_entity) | |
2648 | driver->free_entity (entity); | |
2649 | } | |
2650 | } | |
2651 | } | |
2652 | } | |
2653 | XSETCDR (cache, Qnil); | |
2654 | } | |
2655 | \f | |
2656 | ||
c2f5bfd6 KH |
2657 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2658 | ||
35027d0c KH |
2659 | Lisp_Object |
2660 | font_delete_unmatched (list, spec, size) | |
2661 | Lisp_Object list, spec; | |
2662 | int size; | |
2663 | { | |
d0ab1ebe | 2664 | Lisp_Object entity, val; |
35027d0c | 2665 | enum font_property_index prop; |
45eb10fb | 2666 | |
d0ab1ebe | 2667 | for (val = Qnil; CONSP (list); list = XCDR (list)) |
35027d0c | 2668 | { |
d0ab1ebe | 2669 | entity = XCAR (list); |
35027d0c KH |
2670 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2671 | if (INTEGERP (AREF (spec, prop)) | |
2672 | && ((XINT (AREF (spec, prop)) >> 8) | |
2673 | != (XINT (AREF (entity, prop)) >> 8))) | |
2674 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2675 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2676 | && size |
2677 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2678 | { | |
2679 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2680 | |
35027d0c KH |
2681 | if (diff != 0 |
2682 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2683 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2684 | prop = FONT_SPEC_MAX; | |
2685 | } | |
7181ea6a KH |
2686 | if (prop < FONT_SPEC_MAX |
2687 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2688 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2689 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2690 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2691 | prop = FONT_SPEC_MAX; | |
2692 | if (prop < FONT_SPEC_MAX | |
2693 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2694 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2695 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2696 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2697 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2698 | prop = FONT_SPEC_MAX; | |
35027d0c | 2699 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2700 | val = Fcons (entity, val); |
35027d0c | 2701 | } |
d0ab1ebe | 2702 | return val; |
35027d0c KH |
2703 | } |
2704 | ||
2705 | ||
2706 | /* Return a vector of font-entities matching with SPEC on FRAME. */ | |
2707 | ||
2708 | Lisp_Object | |
c2f5bfd6 KH |
2709 | font_list_entities (frame, spec) |
2710 | Lisp_Object frame, spec; | |
2711 | { | |
2712 | FRAME_PTR f = XFRAME (frame); | |
2713 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2714 | Lisp_Object ftype, val; |
35027d0c KH |
2715 | Lisp_Object *vec; |
2716 | int size; | |
2717 | int need_filtering = 0; | |
c2f5bfd6 KH |
2718 | int i; |
2719 | ||
d0ab1ebe | 2720 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2721 | |
35027d0c KH |
2722 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2723 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2724 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2725 | size = font_pixel_size (f, spec); | |
2726 | else | |
2727 | size = 0; | |
2728 | ||
c2f5bfd6 | 2729 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2730 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2731 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2732 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
35027d0c KH |
2733 | { |
2734 | ASET (scratch_font_spec, i, Qnil); | |
2735 | if (! NILP (AREF (spec, i))) | |
2736 | need_filtering = 1; | |
4007dd1c KH |
2737 | if (i == FONT_DPI_INDEX) |
2738 | /* Skip FONT_SPACING_INDEX */ | |
2739 | i++; | |
35027d0c | 2740 | } |
aa50ca2f | 2741 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2742 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2743 | ||
4007dd1c | 2744 | vec = alloca (sizeof (Lisp_Object) * num_font_drivers); |
35027d0c KH |
2745 | if (! vec) |
2746 | return null_vector; | |
51c01100 | 2747 | |
c2f5bfd6 | 2748 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2749 | if (driver_list->on |
2750 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2751 | { |
ca4da08a | 2752 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2753 | |
e4c93315 | 2754 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2755 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2756 | if (CONSP (val)) | |
2757 | val = XCDR (val); | |
2758 | else | |
c2f5bfd6 | 2759 | { |
4007dd1c | 2760 | Lisp_Object copy; |
35027d0c | 2761 | |
4007dd1c KH |
2762 | val = driver_list->driver->list (frame, scratch_font_spec); |
2763 | copy = Fcopy_font_spec (scratch_font_spec); | |
2764 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); | |
2765 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2766 | } |
4007dd1c KH |
2767 | if (! NILP (val) && need_filtering) |
2768 | val = font_delete_unmatched (val, spec, size); | |
2769 | if (! NILP (val)) | |
2770 | vec[i++] = val; | |
c2f5bfd6 | 2771 | } |
35027d0c | 2772 | |
d0ab1ebe KH |
2773 | val = (i > 0 ? Fvconcat (i, vec) : null_vector); |
2774 | font_add_log ("list", spec, val); | |
2775 | return (val); | |
c2f5bfd6 KH |
2776 | } |
2777 | ||
45eb10fb | 2778 | |
35027d0c KH |
2779 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2780 | nil, is an array of face's attributes, which specifies preferred | |
2781 | font-related attributes. */ | |
45eb10fb | 2782 | |
e950d6f1 | 2783 | static Lisp_Object |
35027d0c KH |
2784 | font_matching_entity (f, attrs, spec) |
2785 | FRAME_PTR f; | |
2786 | Lisp_Object *attrs, spec; | |
e950d6f1 | 2787 | { |
e950d6f1 KH |
2788 | struct font_driver_list *driver_list = f->font_driver_list; |
2789 | Lisp_Object ftype, size, entity; | |
35027d0c | 2790 | Lisp_Object frame; |
819ab95f | 2791 | Lisp_Object work = Fcopy_font_spec (spec); |
e950d6f1 | 2792 | |
35027d0c | 2793 | XSETFRAME (frame, f); |
e950d6f1 KH |
2794 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2795 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2796 | |
8d0e382e AR |
2797 | if (FLOATP (size)) |
2798 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2799 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2800 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2801 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2802 | ||
e950d6f1 KH |
2803 | entity = Qnil; |
2804 | for (; driver_list; driver_list = driver_list->next) | |
2805 | if (driver_list->on | |
2806 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2807 | { | |
ca4da08a | 2808 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2809 | Lisp_Object copy; |
e950d6f1 | 2810 | |
819ab95f KH |
2811 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2812 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2813 | if (CONSP (entity)) |
e950d6f1 KH |
2814 | entity = XCDR (entity); |
2815 | else | |
2816 | { | |
819ab95f KH |
2817 | entity = driver_list->driver->match (frame, work); |
2818 | copy = Fcopy_font_spec (work); | |
7cee5d63 KH |
2819 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2820 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2821 | } |
2822 | if (! NILP (entity)) | |
2823 | break; | |
2824 | } | |
819ab95f | 2825 | font_add_log ("match", work, entity); |
e950d6f1 KH |
2826 | return entity; |
2827 | } | |
2828 | ||
45eb10fb KH |
2829 | |
2830 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2831 | opened font object. */ | |
2832 | ||
c2f5bfd6 KH |
2833 | static Lisp_Object |
2834 | font_open_entity (f, entity, pixel_size) | |
2835 | FRAME_PTR f; | |
2836 | Lisp_Object entity; | |
2837 | int pixel_size; | |
2838 | { | |
2839 | struct font_driver_list *driver_list; | |
43c0454d | 2840 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2841 | struct font *font; |
d26424c5 | 2842 | int min_width, height; |
c2f5bfd6 | 2843 | |
d0ab1ebe | 2844 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2845 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 KH |
2846 | if (XINT (size) != 0) |
2847 | pixel_size = XINT (size); | |
2848 | ||
2849 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); | |
2850 | objlist = XCDR (objlist)) | |
5e634ec9 KH |
2851 | if (! NILP (AREF (XCAR (objlist), FONT_TYPE_INDEX)) |
2852 | && XFONT_OBJECT (XCAR (objlist))->pixel_size == pixel_size) | |
35027d0c KH |
2853 | return XCAR (objlist); |
2854 | ||
2855 | val = AREF (entity, FONT_TYPE_INDEX); | |
2856 | for (driver_list = f->font_driver_list; | |
2857 | driver_list && ! EQ (driver_list->driver->type, val); | |
2858 | driver_list = driver_list->next); | |
2859 | if (! driver_list) | |
2860 | return Qnil; | |
c2f5bfd6 | 2861 | |
35027d0c | 2862 | font_object = driver_list->driver->open (f, entity, pixel_size); |
d0ab1ebe | 2863 | font_add_log ("open", entity, font_object); |
43c0454d | 2864 | if (NILP (font_object)) |
35027d0c KH |
2865 | return Qnil; |
2866 | ASET (entity, FONT_OBJLIST_INDEX, | |
2867 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
5e634ec9 | 2868 | ASET (font_object, FONT_OBJLIST_INDEX, Qnil); |
35027d0c KH |
2869 | num_fonts++; |
2870 | ||
2871 | font = XFONT_OBJECT (font_object); | |
2872 | min_width = (font->min_width ? font->min_width | |
2873 | : font->average_width ? font->average_width | |
2874 | : font->space_width ? font->space_width | |
2875 | : 1); | |
d26424c5 | 2876 | height = (font->height ? font->height : 1); |
819e81df | 2877 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2878 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2879 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2880 | { |
35027d0c | 2881 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2882 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
35027d0c KH |
2883 | fonts_changed_p = 1; |
2884 | } | |
2885 | else | |
2886 | { | |
2887 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2888 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
d26424c5 KH |
2889 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
2890 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, fonts_changed_p = 1; | |
43c0454d | 2891 | } |
819e81df | 2892 | #endif |
43c0454d KH |
2893 | |
2894 | return font_object; | |
c2f5bfd6 KH |
2895 | } |
2896 | ||
45eb10fb KH |
2897 | |
2898 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2899 | ||
c2f5bfd6 KH |
2900 | void |
2901 | font_close_object (f, font_object) | |
2902 | FRAME_PTR f; | |
2903 | Lisp_Object font_object; | |
2904 | { | |
35027d0c | 2905 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2906 | |
5e634ec9 KH |
2907 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2908 | /* Already closed. */ | |
2909 | return; | |
2910 | font_add_log ("close", font_object, Qnil); | |
2911 | font->driver->close (f, font); | |
819e81df | 2912 | #ifdef HAVE_WINDOW_SYSTEM |
5e634ec9 KH |
2913 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2914 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2915 | #endif |
5e634ec9 | 2916 | num_fonts--; |
c2f5bfd6 KH |
2917 | } |
2918 | ||
45eb10fb | 2919 | |
1701724c KH |
2920 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2921 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2922 | |
c2f5bfd6 | 2923 | int |
1b834a8d | 2924 | font_has_char (f, font, c) |
c2f5bfd6 | 2925 | FRAME_PTR f; |
1b834a8d | 2926 | Lisp_Object font; |
c2f5bfd6 KH |
2927 | int c; |
2928 | { | |
1b834a8d | 2929 | struct font *fontp; |
c2f5bfd6 | 2930 | |
1b834a8d KH |
2931 | if (FONT_ENTITY_P (font)) |
2932 | { | |
2933 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2934 | struct font_driver_list *driver_list; | |
2935 | ||
2936 | for (driver_list = f->font_driver_list; | |
2937 | driver_list && ! EQ (driver_list->driver->type, type); | |
2938 | driver_list = driver_list->next); | |
2939 | if (! driver_list) | |
2940 | return 0; | |
2941 | if (! driver_list->driver->has_char) | |
2942 | return -1; | |
2943 | return driver_list->driver->has_char (font, c); | |
2944 | } | |
2945 | ||
d0ab1ebe | 2946 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 2947 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2948 | if (fontp->driver->has_char) |
2949 | { | |
35027d0c | 2950 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2951 | |
2952 | if (result >= 0) | |
2953 | return result; | |
2954 | } | |
2955 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2956 | } |
2957 | ||
45eb10fb KH |
2958 | |
2959 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2960 | ||
c2f5bfd6 KH |
2961 | unsigned |
2962 | font_encode_char (font_object, c) | |
2963 | Lisp_Object font_object; | |
2964 | int c; | |
2965 | { | |
35027d0c | 2966 | struct font *font; |
c2f5bfd6 | 2967 | |
d0ab1ebe | 2968 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2969 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2970 | return font->driver->encode_char (font, c); |
2971 | } | |
2972 | ||
45eb10fb KH |
2973 | |
2974 | /* Return the name of FONT_OBJECT. */ | |
2975 | ||
ef18374f | 2976 | Lisp_Object |
c2f5bfd6 KH |
2977 | font_get_name (font_object) |
2978 | Lisp_Object font_object; | |
2979 | { | |
d0ab1ebe | 2980 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2981 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2982 | } |
2983 | ||
45eb10fb KH |
2984 | |
2985 | /* Return the specification of FONT_OBJECT. */ | |
2986 | ||
ef18374f KH |
2987 | Lisp_Object |
2988 | font_get_spec (font_object) | |
2989 | Lisp_Object font_object; | |
2990 | { | |
35027d0c | 2991 | Lisp_Object spec = font_make_spec (); |
ef18374f KH |
2992 | int i; |
2993 | ||
2994 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
35027d0c KH |
2995 | ASET (spec, i, AREF (font_object, i)); |
2996 | ASET (spec, FONT_SIZE_INDEX, | |
2997 | make_number (XFONT_OBJECT (font_object)->pixel_size)); | |
ef18374f | 2998 | return spec; |
c2f5bfd6 KH |
2999 | } |
3000 | ||
35027d0c KH |
3001 | Lisp_Object |
3002 | font_spec_from_name (font_name) | |
3003 | Lisp_Object font_name; | |
3004 | { | |
3005 | Lisp_Object args[2]; | |
3006 | ||
3007 | args[0] = QCname; | |
3008 | args[1] = font_name; | |
3009 | return Ffont_spec (2, args); | |
3010 | } | |
3011 | ||
45eb10fb | 3012 | |
35027d0c KH |
3013 | void |
3014 | font_clear_prop (attrs, prop) | |
3015 | Lisp_Object *attrs; | |
3016 | enum font_property_index prop; | |
3017 | { | |
3018 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 3019 | |
35027d0c KH |
3020 | if (! FONTP (font)) |
3021 | return; | |
3022 | if (NILP (AREF (font, prop)) | |
e234927a CY |
3023 | && prop != FONT_FAMILY_INDEX |
3024 | && prop != FONT_FOUNDRY_INDEX | |
3025 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 3026 | && prop != FONT_SIZE_INDEX) |
35027d0c KH |
3027 | return; |
3028 | font = Fcopy_font_spec (font); | |
3029 | ASET (font, prop, Qnil); | |
4007dd1c | 3030 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 3031 | { |
4007dd1c KH |
3032 | if (prop == FONT_FAMILY_INDEX) |
3033 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
35027d0c | 3034 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3035 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3036 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3037 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3038 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3039 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3040 | } | |
3041 | else if (prop == FONT_SIZE_INDEX) | |
3042 | { | |
3043 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3044 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3045 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3046 | } | |
e234927a CY |
3047 | else if (prop == FONT_WIDTH_INDEX) |
3048 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3049 | attrs[LFACE_FONT_INDEX] = font; |
3050 | } | |
3051 | ||
3052 | void | |
3053 | font_update_lface (f, attrs) | |
3054 | FRAME_PTR f; | |
3055 | Lisp_Object *attrs; | |
c2f5bfd6 | 3056 | { |
d0ab1ebe | 3057 | Lisp_Object spec; |
35027d0c KH |
3058 | |
3059 | spec = attrs[LFACE_FONT_INDEX]; | |
3060 | if (! FONT_SPEC_P (spec)) | |
3061 | return; | |
3062 | ||
4007dd1c KH |
3063 | if (! NILP (AREF (spec, FONT_FOUNDRY_INDEX))) |
3064 | attrs[LFACE_FOUNDRY_INDEX] = SYMBOL_NAME (AREF (spec, FONT_FOUNDRY_INDEX)); | |
3065 | if (! NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3066 | attrs[LFACE_FAMILY_INDEX] = SYMBOL_NAME (AREF (spec, FONT_FAMILY_INDEX)); | |
35027d0c KH |
3067 | if (! NILP (AREF (spec, FONT_WEIGHT_INDEX))) |
3068 | attrs[LFACE_WEIGHT_INDEX] = FONT_WEIGHT_FOR_FACE (spec); | |
3069 | if (! NILP (AREF (spec, FONT_SLANT_INDEX))) | |
3070 | attrs[LFACE_SLANT_INDEX] = FONT_SLANT_FOR_FACE (spec);; | |
3071 | if (! NILP (AREF (spec, FONT_WIDTH_INDEX))) | |
3072 | attrs[LFACE_SWIDTH_INDEX] = FONT_WIDTH_FOR_FACE (spec); | |
3073 | if (! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
3074 | { | |
3075 | int point; | |
3076 | ||
3077 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) | |
3078 | { | |
3079 | Lisp_Object val; | |
3080 | int dpi = f->resy; | |
3081 | ||
3082 | val = Ffont_get (spec, QCdpi); | |
3083 | if (! NILP (val)) | |
3084 | dpi = XINT (val); | |
3085 | point = PIXEL_TO_POINT (XINT (AREF (spec, FONT_SIZE_INDEX)) * 10, | |
3086 | dpi); | |
2cf4d521 | 3087 | attrs[LFACE_HEIGHT_INDEX] = make_number (point); |
35027d0c KH |
3088 | } |
3089 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2cf4d521 CY |
3090 | { |
3091 | point = XFLOAT_DATA (AREF (spec, FONT_SIZE_INDEX)) * 10; | |
3092 | attrs[LFACE_HEIGHT_INDEX] = make_number (point); | |
3093 | } | |
35027d0c | 3094 | } |
c2f5bfd6 KH |
3095 | } |
3096 | ||
45eb10fb | 3097 | |
35027d0c KH |
3098 | /* Return a font-entity satisfying SPEC and best matching with face's |
3099 | font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3100 | character that the entity must support. */ |
c2f5bfd6 KH |
3101 | |
3102 | Lisp_Object | |
35027d0c | 3103 | font_find_for_lface (f, attrs, spec, c) |
c2f5bfd6 | 3104 | FRAME_PTR f; |
35027d0c | 3105 | Lisp_Object *attrs; |
c2f5bfd6 | 3106 | Lisp_Object spec; |
1701724c | 3107 | int c; |
c2f5bfd6 | 3108 | { |
4007dd1c | 3109 | Lisp_Object work; |
35027d0c | 3110 | Lisp_Object frame, entities, val, props[FONT_REGISTRY_INDEX + 1] ; |
22459668 | 3111 | Lisp_Object size, foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3112 | int pixel_size; |
22459668 | 3113 | int i, j, k, l, result; |
d0a47776 KH |
3114 | |
3115 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3116 | if (NILP (registry[0])) | |
3117 | { | |
edfda783 | 3118 | registry[0] = DEFAULT_ENCODING; |
d0a47776 KH |
3119 | registry[1] = Qascii_0; |
3120 | registry[2] = null_vector; | |
3121 | } | |
3122 | else | |
3123 | registry[1] = null_vector; | |
c2f5bfd6 | 3124 | |
4007dd1c | 3125 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3126 | { |
35027d0c | 3127 | struct charset *encoding, *repertory; |
1701724c | 3128 | |
4007dd1c KH |
3129 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3130 | &encoding, &repertory) < 0) | |
35027d0c KH |
3131 | return Qnil; |
3132 | if (repertory) | |
1701724c | 3133 | { |
35027d0c | 3134 | if (ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) |
1701724c | 3135 | return Qnil; |
35027d0c KH |
3136 | /* Any font of this registry support C. So, let's |
3137 | suppress the further checking. */ | |
3138 | c = -1; | |
1701724c | 3139 | } |
35027d0c KH |
3140 | else if (c > encoding->max_char) |
3141 | return Qnil; | |
c2f5bfd6 KH |
3142 | } |
3143 | ||
4007dd1c | 3144 | work = Fcopy_font_spec (spec); |
35027d0c KH |
3145 | XSETFRAME (frame, f); |
3146 | size = AREF (spec, FONT_SIZE_INDEX); | |
1d1e1245 KH |
3147 | pixel_size = font_pixel_size (f, spec); |
3148 | if (pixel_size == 0) | |
3149 | { | |
3150 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3151 | ||
3152 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
3153 | } | |
4007dd1c KH |
3154 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3155 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3156 | if (! NILP (foundry[0])) | |
3157 | foundry[1] = null_vector; | |
3158 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
3159 | { | |
071132a9 KH |
3160 | val = attrs[LFACE_FOUNDRY_INDEX]; |
3161 | foundry[0] = font_intern_prop ((char *) SDATA (val), SBYTES (val), 1); | |
4007dd1c KH |
3162 | foundry[1] = Qnil; |
3163 | foundry[2] = null_vector; | |
3164 | } | |
3165 | else | |
3166 | foundry[0] = Qnil, foundry[1] = null_vector; | |
3167 | ||
22459668 KH |
3168 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3169 | if (! NILP (adstyle[0])) | |
3170 | adstyle[1] = null_vector; | |
3171 | else if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3172 | { | |
3173 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3174 | ||
3175 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3176 | { | |
3177 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3178 | adstyle[1] = Qnil; | |
3179 | adstyle[2] = null_vector; | |
3180 | } | |
3181 | else | |
3182 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3183 | } | |
3184 | else | |
3185 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3186 | ||
3187 | ||
4007dd1c KH |
3188 | val = AREF (work, FONT_FAMILY_INDEX); |
3189 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3190 | { |
3191 | val = attrs[LFACE_FAMILY_INDEX]; | |
3192 | val = font_intern_prop ((char *) SDATA (val), SBYTES (val), 1); | |
3193 | } | |
4007dd1c KH |
3194 | if (NILP (val)) |
3195 | { | |
3196 | family = alloca ((sizeof family[0]) * 2); | |
3197 | family[0] = Qnil; | |
3198 | family[1] = null_vector; /* terminator. */ | |
3199 | } | |
3200 | else | |
3201 | { | |
3202 | Lisp_Object alters | |
819ab95f KH |
3203 | = Fassoc_string (val, Vface_alternative_font_family_alist, |
3204 | #ifndef HAVE_NS | |
3205 | Qt | |
3206 | #else | |
3207 | Qnil | |
3208 | #endif | |
3209 | ); | |
4007dd1c KH |
3210 | |
3211 | if (! NILP (alters)) | |
3212 | { | |
3213 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
3214 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
3215 | family[i] = XCAR (alters); | |
3216 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3217 | family[i++] = Qnil; | |
3218 | family[i] = null_vector; | |
3219 | } | |
3220 | else | |
3221 | { | |
3222 | family = alloca ((sizeof family[0]) * 3); | |
3223 | i = 0; | |
3224 | family[i++] = val; | |
3225 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3226 | family[i++] = Qnil; | |
3227 | family[i] = null_vector; | |
3228 | } | |
3229 | } | |
3230 | ||
d0a47776 | 3231 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3232 | { |
d0a47776 KH |
3233 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3234 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3235 | { |
d0a47776 KH |
3236 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3237 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3238 | { | |
904a2e0e | 3239 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3240 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3241 | { | |
3242 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
3243 | entities = font_list_entities (frame, work); | |
3244 | if (ASIZE (entities) > 0) | |
3245 | goto found; | |
3246 | } | |
d0a47776 | 3247 | } |
4007dd1c | 3248 | } |
4007dd1c | 3249 | } |
d0a47776 KH |
3250 | return Qnil; |
3251 | found: | |
35027d0c KH |
3252 | if (ASIZE (entities) == 1) |
3253 | { | |
3254 | if (c < 0) | |
3255 | return AREF (entities, 0); | |
3256 | } | |
3257 | else | |
c2f5bfd6 | 3258 | { |
fe5ddfbc | 3259 | /* Sort fonts by properties specified in LFACE. */ |
ec6fe57c | 3260 | Lisp_Object prefer = scratch_font_prefer; |
d0ab1ebe | 3261 | |
35027d0c | 3262 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
4007dd1c | 3263 | ASET (prefer, i, AREF (work, i)); |
79f105c9 KH |
3264 | if (FONTP (attrs[LFACE_FONT_INDEX])) |
3265 | { | |
3266 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3267 | ||
3268 | for (i = 0; i < FONT_EXTRA_INDEX; i++) | |
3269 | if (NILP (AREF (prefer, i))) | |
3270 | ASET (prefer, i, AREF (face_font, i)); | |
3271 | } | |
35027d0c KH |
3272 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) |
3273 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3274 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3275 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3276 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3277 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
1d1e1245 | 3278 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); |
7181ea6a | 3279 | entities = font_sort_entites (entities, prefer, frame, c < 0); |
c2f5bfd6 | 3280 | } |
1701724c | 3281 | if (c < 0) |
35027d0c | 3282 | return entities; |
45eb10fb | 3283 | |
35027d0c KH |
3284 | for (i = 0; i < ASIZE (entities); i++) |
3285 | { | |
3286 | int j; | |
3287 | ||
3288 | val = AREF (entities, i); | |
3289 | if (i > 0) | |
3290 | { | |
3291 | for (j = FONT_FOUNDRY_INDEX; j <= FONT_REGISTRY_INDEX; j++) | |
3292 | if (! EQ (AREF (val, j), props[j])) | |
3293 | break; | |
3294 | if (j > FONT_REGISTRY_INDEX) | |
3295 | continue; | |
3296 | } | |
3297 | for (j = FONT_FOUNDRY_INDEX; j <= FONT_REGISTRY_INDEX; j++) | |
3298 | props[j] = AREF (val, j); | |
3299 | result = font_has_char (f, val, c); | |
3300 | if (result > 0) | |
3301 | return val; | |
3302 | if (result == 0) | |
3303 | return Qnil; | |
3304 | val = font_open_for_lface (f, val, attrs, spec); | |
3305 | if (NILP (val)) | |
3306 | continue; | |
3307 | result = font_has_char (f, val, c); | |
3308 | font_close_object (f, val); | |
3309 | if (result > 0) | |
3310 | return AREF (entities, i); | |
3311 | } | |
1701724c KH |
3312 | return Qnil; |
3313 | } | |
45eb10fb KH |
3314 | |
3315 | ||
c2f5bfd6 | 3316 | Lisp_Object |
35027d0c | 3317 | font_open_for_lface (f, entity, attrs, spec) |
c2f5bfd6 | 3318 | FRAME_PTR f; |
c2f5bfd6 | 3319 | Lisp_Object entity; |
35027d0c | 3320 | Lisp_Object *attrs; |
733fd013 | 3321 | Lisp_Object spec; |
c2f5bfd6 | 3322 | { |
9331887d | 3323 | int size; |
c2f5bfd6 | 3324 | |
4007dd1c KH |
3325 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3326 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3327 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3328 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3329 | size = font_pixel_size (f, spec); |
733fd013 KH |
3330 | else |
3331 | { | |
35027d0c | 3332 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); |
733fd013 KH |
3333 | |
3334 | pt /= 10; | |
3335 | size = POINT_TO_PIXEL (pt, f->resy); | |
ed96cde8 AR |
3336 | #ifdef HAVE_NS |
3337 | if (size == 0) | |
3338 | { | |
3339 | Lisp_Object ffsize = get_frame_param(f, Qfontsize); | |
3340 | size = NUMBERP (ffsize) ? POINT_TO_PIXEL (XINT (ffsize), f->resy) : 0; | |
3341 | } | |
3342 | #endif | |
733fd013 | 3343 | } |
c2f5bfd6 KH |
3344 | return font_open_entity (f, entity, size); |
3345 | } | |
3346 | ||
45eb10fb | 3347 | |
35027d0c KH |
3348 | /* Find a font satisfying SPEC and best matching with face's |
3349 | attributes in ATTRS on FRAME, and return the opened | |
3350 | font-object. */ | |
45eb10fb | 3351 | |
35027d0c KH |
3352 | Lisp_Object |
3353 | font_load_for_lface (f, attrs, spec) | |
c2f5bfd6 | 3354 | FRAME_PTR f; |
35027d0c | 3355 | Lisp_Object *attrs, spec; |
c2f5bfd6 | 3356 | { |
35027d0c | 3357 | Lisp_Object entity; |
ef18374f | 3358 | |
35027d0c KH |
3359 | entity = font_find_for_lface (f, attrs, spec, -1); |
3360 | if (NILP (entity)) | |
ef18374f | 3361 | { |
35027d0c KH |
3362 | /* No font is listed for SPEC, but each font-backend may have |
3363 | the different criteria about "font matching". So, try | |
3364 | it. */ | |
3365 | entity = font_matching_entity (f, attrs, spec); | |
3366 | if (NILP (entity)) | |
3367 | return Qnil; | |
c2f5bfd6 | 3368 | } |
35027d0c | 3369 | return font_open_for_lface (f, entity, attrs, spec); |
c2f5bfd6 KH |
3370 | } |
3371 | ||
45eb10fb KH |
3372 | |
3373 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3374 | ||
c2f5bfd6 KH |
3375 | void |
3376 | font_prepare_for_face (f, face) | |
3377 | FRAME_PTR f; | |
3378 | struct face *face; | |
3379 | { | |
35027d0c KH |
3380 | if (face->font->driver->prepare_face) |
3381 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3382 | } |
3383 | ||
45eb10fb KH |
3384 | |
3385 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3386 | ||
c2f5bfd6 KH |
3387 | void |
3388 | font_done_for_face (f, face) | |
3389 | FRAME_PTR f; | |
3390 | struct face *face; | |
3391 | { | |
35027d0c KH |
3392 | if (face->font->driver->done_face) |
3393 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3394 | face->extra = NULL; |
3395 | } | |
3396 | ||
45eb10fb KH |
3397 | |
3398 | /* Open a font best matching with NAME on frame F. If no proper font | |
3399 | is found, return Qnil. */ | |
3400 | ||
c2f5bfd6 KH |
3401 | Lisp_Object |
3402 | font_open_by_name (f, name) | |
3403 | FRAME_PTR f; | |
3404 | char *name; | |
3405 | { | |
ef18374f | 3406 | Lisp_Object args[2]; |
4007dd1c | 3407 | Lisp_Object spec, attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3408 | |
ef18374f KH |
3409 | args[0] = QCname; |
3410 | args[1] = make_unibyte_string (name, strlen (name)); | |
3411 | spec = Ffont_spec (2, args); | |
4007dd1c KH |
3412 | /* We set up the default font-related attributes of a face to prefer |
3413 | a moderate font. */ | |
3414 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3415 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3416 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3417 | #ifndef HAVE_NS |
4007dd1c | 3418 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3419 | #else |
3420 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3421 | #endif | |
4007dd1c KH |
3422 | attrs[LFACE_FONT_INDEX] = Qnil; |
3423 | ||
3424 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3425 | } |
3426 | ||
3427 | ||
3428 | /* Register font-driver DRIVER. This function is used in two ways. | |
3429 | ||
417a1b10 KH |
3430 | The first is with frame F non-NULL. In this case, make DRIVER |
3431 | available (but not yet activated) on F. All frame creaters | |
3432 | (e.g. Fx_create_frame) must call this function at least once with | |
3433 | an available font-driver. | |
c2f5bfd6 KH |
3434 | |
3435 | The second is with frame F NULL. In this case, DRIVER is globally | |
3436 | registered in the variable `font_driver_list'. All font-driver | |
3437 | implementations must call this function in its syms_of_XXXX | |
3438 | (e.g. syms_of_xfont). */ | |
3439 | ||
3440 | void | |
3441 | register_font_driver (driver, f) | |
3442 | struct font_driver *driver; | |
3443 | FRAME_PTR f; | |
3444 | { | |
3445 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3446 | struct font_driver_list *prev, *list; | |
3447 | ||
3448 | if (f && ! driver->draw) | |
43a1d19b | 3449 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3450 | SDATA (SYMBOL_NAME (driver->type))); |
3451 | ||
3452 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3453 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3454 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3455 | ||
c115043b | 3456 | list = xmalloc (sizeof (struct font_driver_list)); |
417a1b10 | 3457 | list->on = 0; |
c2f5bfd6 KH |
3458 | list->driver = driver; |
3459 | list->next = NULL; | |
3460 | if (prev) | |
3461 | prev->next = list; | |
3462 | else if (f) | |
3463 | f->font_driver_list = list; | |
3464 | else | |
3465 | font_driver_list = list; | |
72606e45 KH |
3466 | if (! f) |
3467 | num_font_drivers++; | |
c2f5bfd6 KH |
3468 | } |
3469 | ||
45eb10fb | 3470 | |
f697fff0 | 3471 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3472 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3473 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3474 | |
ca4da08a KH |
3475 | A caller must free all realized faces if any in advance. The |
3476 | return value is a list of font backends actually made used on | |
3477 | F. */ | |
e950d6f1 KH |
3478 | |
3479 | Lisp_Object | |
3480 | font_update_drivers (f, new_drivers) | |
417a1b10 KH |
3481 | FRAME_PTR f; |
3482 | Lisp_Object new_drivers; | |
417a1b10 KH |
3483 | { |
3484 | Lisp_Object active_drivers = Qnil; | |
4007dd1c | 3485 | struct font_driver *driver; |
417a1b10 KH |
3486 | struct font_driver_list *list; |
3487 | ||
4007dd1c KH |
3488 | /* At first, turn off non-requested drivers, and turn on requested |
3489 | drivers. */ | |
f697fff0 | 3490 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c KH |
3491 | { |
3492 | driver = list->driver; | |
3493 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) | |
3494 | != list->on) | |
3495 | { | |
3496 | if (list->on) | |
3497 | { | |
3498 | if (driver->end_for_frame) | |
3499 | driver->end_for_frame (f); | |
3500 | font_finish_cache (f, driver); | |
3501 | list->on = 0; | |
3502 | } | |
3503 | else | |
3504 | { | |
3505 | if (! driver->start_for_frame | |
3506 | || driver->start_for_frame (f) == 0) | |
3507 | { | |
3508 | font_prepare_cache (f, driver); | |
3509 | list->on = 1; | |
3510 | } | |
3511 | } | |
3512 | } | |
3513 | } | |
3514 | ||
3515 | if (NILP (new_drivers)) | |
3516 | return Qnil; | |
3517 | ||
3518 | if (! EQ (new_drivers, Qt)) | |
3519 | { | |
3520 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3521 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3522 | Lisp_Object tail; |
3523 | int i; | |
3524 | ||
3525 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3526 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3527 | { | |
3528 | for (list = f->font_driver_list; list; list = list->next) | |
3529 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3530 | break; | |
3531 | if (list) | |
3532 | list_table[i++] = list; | |
3533 | } | |
3534 | for (list = f->font_driver_list; list; list = list->next) | |
3535 | if (! list->on) | |
3536 | list_table[i] = list; | |
3537 | list_table[i] = NULL; | |
3538 | ||
3306c6dc | 3539 | next = &f->font_driver_list; |
4007dd1c KH |
3540 | for (i = 0; list_table[i]; i++) |
3541 | { | |
3306c6dc AS |
3542 | *next = list_table[i]; |
3543 | next = &(*next)->next; | |
4007dd1c | 3544 | } |
3306c6dc | 3545 | *next = NULL; |
4007dd1c | 3546 | } |
417a1b10 | 3547 | |
4007dd1c KH |
3548 | for (list = f->font_driver_list; list; list = list->next) |
3549 | if (list->on) | |
3550 | active_drivers = nconc2 (active_drivers, | |
3551 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3552 | return active_drivers; |
417a1b10 KH |
3553 | } |
3554 | ||
f697fff0 KH |
3555 | int |
3556 | font_put_frame_data (f, driver, data) | |
3557 | FRAME_PTR f; | |
3558 | struct font_driver *driver; | |
3559 | void *data; | |
3560 | { | |
3561 | struct font_data_list *list, *prev; | |
3562 | ||
3563 | for (prev = NULL, list = f->font_data_list; list; | |
3564 | prev = list, list = list->next) | |
3565 | if (list->driver == driver) | |
3566 | break; | |
3567 | if (! data) | |
3568 | { | |
3569 | if (list) | |
3570 | { | |
3571 | if (prev) | |
3572 | prev->next = list->next; | |
3573 | else | |
3574 | f->font_data_list = list->next; | |
3575 | free (list); | |
3576 | } | |
3577 | return 0; | |
3578 | } | |
3579 | ||
3580 | if (! list) | |
3581 | { | |
c115043b | 3582 | list = xmalloc (sizeof (struct font_data_list)); |
f697fff0 KH |
3583 | list->driver = driver; |
3584 | list->next = f->font_data_list; | |
3585 | f->font_data_list = list; | |
3586 | } | |
3587 | list->data = data; | |
3588 | return 0; | |
3589 | } | |
3590 | ||
3591 | ||
3592 | void * | |
3593 | font_get_frame_data (f, driver) | |
3594 | FRAME_PTR f; | |
3595 | struct font_driver *driver; | |
3596 | { | |
3597 | struct font_data_list *list; | |
3598 | ||
3599 | for (list = f->font_data_list; list; list = list->next) | |
3600 | if (list->driver == driver) | |
3601 | break; | |
3602 | if (! list) | |
3603 | return NULL; | |
3604 | return list->data; | |
3605 | } | |
3606 | ||
417a1b10 | 3607 | |
45eb10fb | 3608 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3609 | POS in window W. If STRING is non-nil, it is a string containing C |
3610 | at index POS. If C is negative, get C from the current buffer or | |
3611 | STRING. */ | |
45eb10fb | 3612 | |
10d16101 | 3613 | Lisp_Object |
e3ee0340 | 3614 | font_at (c, pos, face, w, string) |
10d16101 KH |
3615 | int c; |
3616 | EMACS_INT pos; | |
3617 | struct face *face; | |
3618 | struct window *w; | |
e3ee0340 | 3619 | Lisp_Object string; |
10d16101 KH |
3620 | { |
3621 | FRAME_PTR f; | |
e3ee0340 | 3622 | int multibyte; |
35027d0c | 3623 | Lisp_Object font_object; |
e3ee0340 | 3624 | |
e500c47d KH |
3625 | multibyte = (NILP (string) |
3626 | ? ! NILP (current_buffer->enable_multibyte_characters) | |
3627 | : STRING_MULTIBYTE (string)); | |
e3ee0340 KH |
3628 | if (c < 0) |
3629 | { | |
3630 | if (NILP (string)) | |
3631 | { | |
e3ee0340 KH |
3632 | if (multibyte) |
3633 | { | |
3634 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3635 | ||
3636 | c = FETCH_CHAR (pos_byte); | |
3637 | } | |
3638 | else | |
3639 | c = FETCH_BYTE (pos); | |
3640 | } | |
3641 | else | |
3642 | { | |
3643 | unsigned char *str; | |
3644 | ||
3645 | multibyte = STRING_MULTIBYTE (string); | |
3646 | if (multibyte) | |
3647 | { | |
3648 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3649 | ||
3650 | str = SDATA (string) + pos_byte; | |
3651 | c = STRING_CHAR (str, 0); | |
3652 | } | |
3653 | else | |
3654 | c = SDATA (string)[pos]; | |
3655 | } | |
3656 | } | |
10d16101 KH |
3657 | |
3658 | f = XFRAME (w->frame); | |
1385a806 KH |
3659 | if (! FRAME_WINDOW_P (f)) |
3660 | return Qnil; | |
10d16101 KH |
3661 | if (! face) |
3662 | { | |
e3ee0340 | 3663 | int face_id; |
0f8b27ea | 3664 | EMACS_INT endptr; |
e3ee0340 KH |
3665 | |
3666 | if (STRINGP (string)) | |
3667 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3668 | DEFAULT_FACE_ID, 0); |
3669 | else | |
e3ee0340 | 3670 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
10d16101 KH |
3671 | pos + 100, 0); |
3672 | face = FACE_FROM_ID (f, face_id); | |
3673 | } | |
e3ee0340 KH |
3674 | if (multibyte) |
3675 | { | |
3676 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3677 | face = FACE_FROM_ID (f, face_id); | |
3678 | } | |
35027d0c | 3679 | if (! face->font) |
10d16101 | 3680 | return Qnil; |
35027d0c | 3681 | |
35027d0c KH |
3682 | XSETFONT (font_object, face->font); |
3683 | return font_object; | |
3684 | } | |
3685 | ||
3686 | ||
071132a9 KH |
3687 | #ifdef HAVE_WINDOW_SYSTEM |
3688 | ||
3689 | /* Check how many characters after POS (at most to *LIMIT) can be | |
3690 | displayed by the same font on the window W. FACE, if non-NULL, is | |
3691 | the face selected for the character at POS. If STRING is not nil, | |
3692 | it is the string to check instead of the current buffer. In that | |
3693 | case, FACE must be not NULL. | |
027a33c0 | 3694 | |
071132a9 KH |
3695 | The return value is the font-object for the character at POS. |
3696 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3697 | |
071132a9 KH |
3698 | It is assured that the current buffer (or STRING) is multibyte. */ |
3699 | ||
3700 | Lisp_Object | |
3701 | font_range (pos, limit, w, face, string) | |
3702 | EMACS_INT pos, *limit; | |
3703 | struct window *w; | |
35027d0c | 3704 | struct face *face; |
35027d0c KH |
3705 | Lisp_Object string; |
3706 | { | |
071132a9 | 3707 | EMACS_INT pos_byte, ignore, start, start_byte; |
35027d0c | 3708 | int c; |
071132a9 | 3709 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3710 | |
3711 | if (NILP (string)) | |
3712 | { | |
35027d0c | 3713 | pos_byte = CHAR_TO_BYTE (pos); |
071132a9 KH |
3714 | if (! face) |
3715 | { | |
3716 | int face_id; | |
3717 | ||
3718 | face_id = face_at_buffer_position (w, pos, 0, 0, &ignore, *limit, 0); | |
3719 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); | |
3720 | } | |
35027d0c KH |
3721 | } |
3722 | else | |
3723 | { | |
071132a9 | 3724 | font_assert (face); |
35027d0c KH |
3725 | pos_byte = string_char_to_byte (string, pos); |
3726 | } | |
3727 | ||
071132a9 KH |
3728 | start = pos, start_byte = pos_byte; |
3729 | while (pos < *limit) | |
35027d0c | 3730 | { |
071132a9 | 3731 | Lisp_Object category; |
35027d0c KH |
3732 | |
3733 | if (NILP (string)) | |
3734 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3735 | else | |
3736 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
071132a9 | 3737 | if (NILP (font_object)) |
35027d0c | 3738 | { |
071132a9 KH |
3739 | font_object = font_for_char (face, c, pos - 1, string); |
3740 | if (NILP (font_object)) | |
3741 | return Qnil; | |
35027d0c KH |
3742 | continue; |
3743 | } | |
071132a9 KH |
3744 | |
3745 | category = CHAR_TABLE_REF (Vunicode_category_table, c); | |
3746 | if (! EQ (category, QCf) | |
3747 | && font_encode_char (font_object, c) == FONT_INVALID_CODE) | |
35027d0c | 3748 | { |
071132a9 KH |
3749 | Lisp_Object f = font_for_char (face, c, pos - 1, string); |
3750 | EMACS_INT i, i_byte; | |
3751 | ||
3752 | ||
3753 | if (NILP (f)) | |
3754 | { | |
3755 | *limit = pos - 1; | |
3756 | return font_object; | |
3757 | } | |
3758 | i = start, i_byte = start_byte; | |
3759 | while (i < pos - 1) | |
3760 | { | |
3761 | ||
3762 | if (NILP (string)) | |
3763 | FETCH_CHAR_ADVANCE_NO_CHECK (c, i, i_byte); | |
3764 | else | |
3765 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, i, i_byte); | |
3766 | category = CHAR_TABLE_REF (Vunicode_category_table, c); | |
3767 | if (! EQ (category, QCf) | |
3768 | && font_encode_char (f, c) == FONT_INVALID_CODE) | |
3769 | { | |
3770 | *limit = pos - 1; | |
3771 | return font_object; | |
3772 | } | |
3773 | } | |
3774 | font_object = f; | |
35027d0c KH |
3775 | } |
3776 | } | |
071132a9 | 3777 | return font_object; |
10d16101 | 3778 | } |
071132a9 | 3779 | #endif |
10d16101 | 3780 | |
c2f5bfd6 KH |
3781 | \f |
3782 | /* Lisp API */ | |
3783 | ||
35027d0c | 3784 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3785 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3786 | Return nil otherwise. |
3787 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3788 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c KH |
3789 | `font-object'. */) |
3790 | (object, extra_type) | |
3791 | Lisp_Object object, extra_type; | |
c2f5bfd6 | 3792 | { |
35027d0c KH |
3793 | if (NILP (extra_type)) |
3794 | return (FONTP (object) ? Qt : Qnil); | |
3795 | if (EQ (extra_type, Qfont_spec)) | |
3796 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3797 | if (EQ (extra_type, Qfont_entity)) | |
3798 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3799 | if (EQ (extra_type, Qfont_object)) | |
3800 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3801 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3802 | } |
3803 | ||
3804 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, | |
45eb10fb KH |
3805 | doc: /* Return a newly created font-spec with arguments as properties. |
3806 | ||
3807 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3808 | valid font property name listed below: | |
3809 | ||
3810 | `:family', `:weight', `:slant', `:width' | |
3811 | ||
3812 | They are the same as face attributes of the same name. See | |
51c01100 | 3813 | `set-face-attribute'. |
45eb10fb KH |
3814 | |
3815 | `:foundry' | |
3816 | ||
3817 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3818 | ||
3819 | `:adstyle' | |
3820 | ||
3821 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3822 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3823 | |
3824 | `:registry' | |
3825 | ||
3826 | VALUE must be a string or a symbol specifying the charset registry and | |
3827 | encoding of a font, e.g. ``iso8859-1''. | |
3828 | ||
3829 | `:size' | |
3830 | ||
3831 | VALUE must be a non-negative integer or a floating point number | |
35027d0c | 3832 | specifying the font size. It specifies the font size in pixels |
f697fff0 | 3833 | (if VALUE is an integer), or in points (if VALUE is a float). |
2babb359 KH |
3834 | |
3835 | `:name' | |
3836 | ||
7a18a178 | 3837 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3838 | usage: (font-spec ARGS ...) |
3839 | ||
3840 | `:script' | |
3841 | ||
3842 | VALUE must be a symbol representing a script that the font must | |
3843 | support. */) | |
c2f5bfd6 KH |
3844 | (nargs, args) |
3845 | int nargs; | |
3846 | Lisp_Object *args; | |
3847 | { | |
35027d0c | 3848 | Lisp_Object spec = font_make_spec (); |
c2f5bfd6 KH |
3849 | int i; |
3850 | ||
3851 | for (i = 0; i < nargs; i += 2) | |
3852 | { | |
c2f5bfd6 KH |
3853 | Lisp_Object key = args[i], val = args[i + 1]; |
3854 | ||
35027d0c KH |
3855 | if (EQ (key, QCname)) |
3856 | { | |
3857 | CHECK_STRING (val); | |
3858 | font_parse_name ((char *) SDATA (val), spec); | |
3859 | font_put_extra (spec, key, val); | |
3860 | } | |
c2f5bfd6 | 3861 | else |
4485a28e | 3862 | { |
35027d0c KH |
3863 | int idx = get_font_prop_index (key); |
3864 | ||
3865 | if (idx >= 0) | |
ec6fe57c | 3866 | { |
35027d0c KH |
3867 | val = font_prop_validate (idx, Qnil, val); |
3868 | if (idx < FONT_EXTRA_INDEX) | |
3869 | ASET (spec, idx, val); | |
3870 | else | |
3871 | font_put_extra (spec, key, val); | |
ec6fe57c | 3872 | } |
35027d0c KH |
3873 | else |
3874 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3875 | } |
e950d6f1 | 3876 | } |
c2f5bfd6 KH |
3877 | return spec; |
3878 | } | |
3879 | ||
35027d0c KH |
3880 | DEFUN ("copy-font-spec", Fcopy_font_spec, Scopy_font_spec, 1, 1, 0, |
3881 | doc: /* Return a copy of FONT as a font-spec. */) | |
3882 | (font) | |
3883 | Lisp_Object font; | |
3884 | { | |
d26424c5 | 3885 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3886 | int i; |
3887 | ||
3888 | CHECK_FONT (font); | |
3889 | new_spec = font_make_spec (); | |
3890 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3891 | ASET (new_spec, i, AREF (font, i)); | |
d26424c5 KH |
3892 | extra = Fcopy_sequence (AREF (font, FONT_EXTRA_INDEX)); |
3893 | /* We must remove :font-entity property. */ | |
3894 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3895 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3896 | { | |
3897 | if (NILP (prev)) | |
3898 | extra = XCDR (extra); | |
3899 | else | |
3900 | XSETCDR (prev, XCDR (tail)); | |
3901 | break; | |
3902 | } | |
35027d0c KH |
3903 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3904 | return new_spec; | |
3905 | } | |
3906 | ||
3907 | DEFUN ("merge-font-spec", Fmerge_font_spec, Smerge_font_spec, 2, 2, 0, | |
3908 | doc: /* Merge font-specs FROM and TO, and return a new font-spec. | |
3909 | Every specified properties in FROM override the corresponding | |
3910 | properties in TO. */) | |
3911 | (from, to) | |
3912 | Lisp_Object from, to; | |
3913 | { | |
3914 | Lisp_Object extra, tail; | |
3915 | int i; | |
3916 | ||
3917 | CHECK_FONT (from); | |
3918 | CHECK_FONT (to); | |
3919 | to = Fcopy_font_spec (to); | |
3920 | for (i = 0; i < FONT_EXTRA_INDEX; i++) | |
3921 | ASET (to, i, AREF (from, i)); | |
3922 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3923 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3924 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3925 | { | |
3926 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3927 | ||
3928 | if (! NILP (slot)) | |
3929 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3930 | else | |
3931 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3932 | } | |
3933 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3934 | return to; | |
3935 | } | |
c2f5bfd6 KH |
3936 | |
3937 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, | |
45eb10fb | 3938 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 KH |
3939 | FONT is a font-spec, a font-entity, or a font-object. |
3940 | KEY must be one of these symbols: | |
3941 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, | |
3942 | :size, :name, :script | |
3943 | See the documentation of `font-spec' for their meanings. | |
3944 | If FONT is a font-entity or font-object, the value of :script may be | |
3945 | a list of scripts that are supported by the font. */) | |
45eb10fb KH |
3946 | (font, key) |
3947 | Lisp_Object font, key; | |
c2f5bfd6 | 3948 | { |
35027d0c | 3949 | int idx; |
c2f5bfd6 | 3950 | |
35027d0c KH |
3951 | CHECK_FONT (font); |
3952 | CHECK_SYMBOL (key); | |
e80e09b4 | 3953 | |
35027d0c | 3954 | idx = get_font_prop_index (key); |
2babb359 KH |
3955 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3956 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 3957 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 3958 | return AREF (font, idx); |
35027d0c | 3959 | return Fcdr (Fassq (key, AREF (font, FONT_EXTRA_INDEX))); |
c2f5bfd6 KH |
3960 | } |
3961 | ||
51cf11be AS |
3962 | #ifdef HAVE_WINDOW_SYSTEM |
3963 | ||
b1868a1a CY |
3964 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
3965 | doc: /* Return a plist of face attributes generated by FONT. | |
3966 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
3967 | The return value is a list of the form | |
3968 | ||
6f568955 | 3969 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 3970 | |
48105a6a | 3971 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
3972 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
3973 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 3974 | |
48105a6a JB |
3975 | The optional argument FRAME specifies the frame that the face attributes |
3976 | are to be displayed on. If omitted, the selected frame is used. */) | |
b1868a1a | 3977 | (font, frame) |
6f568955 | 3978 | Lisp_Object font, frame; |
b1868a1a CY |
3979 | { |
3980 | struct frame *f; | |
3981 | Lisp_Object plist[10]; | |
3982 | Lisp_Object val; | |
5989ba2f | 3983 | int n = 0; |
b1868a1a CY |
3984 | |
3985 | if (NILP (frame)) | |
3986 | frame = selected_frame; | |
3987 | CHECK_LIVE_FRAME (frame); | |
3988 | f = XFRAME (frame); | |
3989 | ||
3990 | if (STRINGP (font)) | |
3991 | { | |
3992 | int fontset = fs_query_fontset (font, 0); | |
3993 | Lisp_Object name = font; | |
3994 | if (fontset >= 0) | |
3995 | font = fontset_ascii (fontset); | |
3996 | font = font_spec_from_name (name); | |
3997 | if (! FONTP (font)) | |
3998 | signal_error ("Invalid font name", name); | |
3999 | } | |
4000 | else if (! FONTP (font)) | |
4001 | signal_error ("Invalid font object", font); | |
4002 | ||
b1868a1a | 4003 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4004 | if (! NILP (val)) |
4005 | { | |
4006 | plist[n++] = QCfamily; | |
4007 | plist[n++] = SYMBOL_NAME (val); | |
4008 | } | |
b1868a1a | 4009 | |
b1868a1a CY |
4010 | val = AREF (font, FONT_SIZE_INDEX); |
4011 | if (INTEGERP (val)) | |
4012 | { | |
4013 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
4014 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy; | |
5989ba2f | 4015 | plist[n++] = QCheight; |
c3bb5465 | 4016 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4017 | } |
4018 | else if (FLOATP (val)) | |
5989ba2f CY |
4019 | { |
4020 | plist[n++] = QCheight; | |
4021 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4022 | } | |
b1868a1a | 4023 | |
b1868a1a | 4024 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4025 | if (! NILP (val)) |
4026 | { | |
4027 | plist[n++] = QCweight; | |
4028 | plist[n++] = val; | |
4029 | } | |
b1868a1a | 4030 | |
b1868a1a | 4031 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4032 | if (! NILP (val)) |
4033 | { | |
4034 | plist[n++] = QCslant; | |
4035 | plist[n++] = val; | |
4036 | } | |
b1868a1a | 4037 | |
b1868a1a | 4038 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4039 | if (! NILP (val)) |
4040 | { | |
4041 | plist[n++] = QCwidth; | |
4042 | plist[n++] = val; | |
4043 | } | |
b1868a1a | 4044 | |
5989ba2f | 4045 | return Flist (n, plist); |
b1868a1a | 4046 | } |
c2f5bfd6 | 4047 | |
51cf11be AS |
4048 | #endif |
4049 | ||
c2f5bfd6 | 4050 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
51c01100 | 4051 | doc: /* Set one property of FONT-SPEC: give property PROP value VAL. */) |
c2f5bfd6 KH |
4052 | (font_spec, prop, val) |
4053 | Lisp_Object font_spec, prop, val; | |
4054 | { | |
35027d0c | 4055 | int idx; |
c2f5bfd6 KH |
4056 | |
4057 | CHECK_FONT_SPEC (font_spec); | |
35027d0c KH |
4058 | idx = get_font_prop_index (prop); |
4059 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
69eb9e8b | 4060 | ASET (font_spec, idx, font_prop_validate (idx, Qnil, val)); |
c2f5bfd6 | 4061 | else |
35027d0c | 4062 | font_put_extra (font_spec, prop, font_prop_validate (0, prop, val)); |
c2f5bfd6 KH |
4063 | return val; |
4064 | } | |
4065 | ||
4066 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, | |
4067 | doc: /* List available fonts matching FONT-SPEC on the current frame. | |
4068 | Optional 2nd argument FRAME specifies the target frame. | |
4069 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4070 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4071 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4072 | how close they are to PREFER. */) |
c2f5bfd6 KH |
4073 | (font_spec, frame, num, prefer) |
4074 | Lisp_Object font_spec, frame, num, prefer; | |
4075 | { | |
4076 | Lisp_Object vec, list, tail; | |
4077 | int n = 0, i, len; | |
4078 | ||
4079 | if (NILP (frame)) | |
4080 | frame = selected_frame; | |
4081 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 4082 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4083 | if (! NILP (num)) |
4084 | { | |
4085 | CHECK_NUMBER (num); | |
4086 | n = XINT (num); | |
4087 | if (n <= 0) | |
4088 | return Qnil; | |
4089 | } | |
4090 | if (! NILP (prefer)) | |
35027d0c | 4091 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 KH |
4092 | |
4093 | vec = font_list_entities (frame, font_spec); | |
4094 | len = ASIZE (vec); | |
4095 | if (len == 0) | |
4096 | return Qnil; | |
4097 | if (len == 1) | |
4098 | return Fcons (AREF (vec, 0), Qnil); | |
4099 | ||
4100 | if (! NILP (prefer)) | |
7181ea6a | 4101 | vec = font_sort_entites (vec, prefer, frame, 0); |
c2f5bfd6 KH |
4102 | |
4103 | list = tail = Fcons (AREF (vec, 0), Qnil); | |
4104 | if (n == 0 || n > len) | |
4105 | n = len; | |
4106 | for (i = 1; i < n; i++) | |
4107 | { | |
4108 | Lisp_Object val = Fcons (AREF (vec, i), Qnil); | |
4109 | ||
4110 | XSETCDR (tail, val); | |
4111 | tail = val; | |
4112 | } | |
4113 | return list; | |
4114 | } | |
4115 | ||
35027d0c | 4116 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4117 | doc: /* List available font families on the current frame. |
027a33c0 | 4118 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
c2f5bfd6 KH |
4119 | (frame) |
4120 | Lisp_Object frame; | |
4121 | { | |
4122 | FRAME_PTR f; | |
4123 | struct font_driver_list *driver_list; | |
4124 | Lisp_Object list; | |
4125 | ||
4126 | if (NILP (frame)) | |
4127 | frame = selected_frame; | |
4128 | CHECK_LIVE_FRAME (frame); | |
4129 | f = XFRAME (frame); | |
4130 | list = Qnil; | |
4131 | for (driver_list = f->font_driver_list; driver_list; | |
4132 | driver_list = driver_list->next) | |
4133 | if (driver_list->driver->list_family) | |
4134 | { | |
4135 | Lisp_Object val = driver_list->driver->list_family (frame); | |
4136 | ||
4137 | if (NILP (list)) | |
4138 | list = val; | |
4139 | else | |
4140 | { | |
4141 | Lisp_Object tail = list; | |
4142 | ||
4143 | for (; CONSP (val); val = XCDR (val)) | |
4144 | if (NILP (Fmemq (XCAR (val), tail))) | |
4145 | list = Fcons (XCAR (val), list); | |
4146 | } | |
4147 | } | |
4148 | return list; | |
4149 | } | |
4150 | ||
4151 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4152 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4153 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
4154 | (font_spec, frame) | |
4155 | Lisp_Object font_spec, frame; | |
4156 | { | |
4157 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4158 | ||
4159 | if (CONSP (val)) | |
4160 | val = XCAR (val); | |
4161 | return val; | |
4162 | } | |
4163 | ||
d0ab1ebe | 4164 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4165 | doc: /* Return XLFD name of FONT. |
4166 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4167 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4168 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
4169 | the consecutive wildcards are folded to one. */) | |
4170 | (font, fold_wildcards) | |
4171 | Lisp_Object font, fold_wildcards; | |
c2f5bfd6 KH |
4172 | { |
4173 | char name[256]; | |
4174 | int pixel_size = 0; | |
4175 | ||
35027d0c KH |
4176 | CHECK_FONT (font); |
4177 | ||
4178 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4179 | { |
35027d0c | 4180 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4181 | |
35027d0c KH |
4182 | if (STRINGP (font_name) |
4183 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4184 | { |
4185 | if (NILP (fold_wildcards)) | |
4186 | return font_name; | |
4187 | strcpy (name, (char *) SDATA (font_name)); | |
4188 | goto done; | |
4189 | } | |
35027d0c | 4190 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4191 | } |
c2f5bfd6 KH |
4192 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
4193 | return Qnil; | |
d0ab1ebe KH |
4194 | done: |
4195 | if (! NILP (fold_wildcards)) | |
4196 | { | |
4197 | char *p0 = name, *p1; | |
4198 | ||
4199 | while ((p1 = strstr (p0, "-*-*"))) | |
4200 | { | |
4201 | strcpy (p1, p1 + 2); | |
4202 | p0 = p1; | |
4203 | } | |
4204 | } | |
4205 | ||
c2f5bfd6 KH |
4206 | return build_string (name); |
4207 | } | |
4208 | ||
4209 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
4210 | doc: /* Clear font cache. */) | |
4211 | () | |
4212 | { | |
4213 | Lisp_Object list, frame; | |
4214 | ||
4215 | FOR_EACH_FRAME (list, frame) | |
4216 | { | |
4217 | FRAME_PTR f = XFRAME (frame); | |
4218 | struct font_driver_list *driver_list = f->font_driver_list; | |
4219 | ||
4220 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
4221 | if (driver_list->on) |
4222 | { | |
ca4da08a KH |
4223 | Lisp_Object cache = driver_list->driver->get_cache (f); |
4224 | Lisp_Object val; | |
51c01100 | 4225 | |
ca4da08a | 4226 | val = XCDR (cache); |
43c0454d KH |
4227 | while (! NILP (val) |
4228 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 4229 | val = XCDR (val); |
d0ab1ebe | 4230 | font_assert (! NILP (val)); |
ca4da08a KH |
4231 | val = XCDR (XCAR (val)); |
4232 | if (XINT (XCAR (val)) == 0) | |
417a1b10 | 4233 | { |
ca4da08a KH |
4234 | font_clear_cache (f, XCAR (val), driver_list->driver); |
4235 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 4236 | } |
417a1b10 | 4237 | } |
c2f5bfd6 KH |
4238 | } |
4239 | ||
4240 | return Qnil; | |
4241 | } | |
4242 | ||
071132a9 KH |
4243 | \f |
4244 | void | |
4245 | font_fill_lglyph_metrics (glyph, font_object) | |
4246 | Lisp_Object glyph, font_object; | |
c2f5bfd6 | 4247 | { |
071132a9 | 4248 | struct font *font = XFONT_OBJECT (font_object); |
f62ab7c5 EZ |
4249 | unsigned code; |
4250 | /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */ | |
4251 | EMACS_INT ecode = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); | |
071132a9 | 4252 | struct font_metrics metrics; |
c2f5bfd6 | 4253 | |
f62ab7c5 EZ |
4254 | LGLYPH_SET_CODE (glyph, ecode); |
4255 | code = ecode; | |
071132a9 KH |
4256 | font->driver->text_extents (font, &code, 1, &metrics); |
4257 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4258 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4259 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4260 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4261 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4262 | } |
4263 | ||
c2f5bfd6 | 4264 | |
071132a9 KH |
4265 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4266 | doc: /* Shape the glyph-string GSTRING. | |
4267 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4268 | to get the correct visual image of character sequences set in the | |
4269 | header of the glyph-string. | |
1701724c | 4270 | |
071132a9 KH |
4271 | If the shaping was successful, the value is GSTRING itself or a newly |
4272 | created glyph-string. Otherwise, the value is nil. */) | |
4273 | (gstring) | |
4274 | Lisp_Object gstring; | |
1701724c KH |
4275 | { |
4276 | struct font *font; | |
071132a9 | 4277 | Lisp_Object font_object, n, glyph; |
fc3a285e | 4278 | int i, j, from, to; |
071132a9 KH |
4279 | |
4280 | if (! composition_gstring_p (gstring)) | |
4281 | signal_error ("Invalid glyph-string: ", gstring); | |
4282 | if (! NILP (LGSTRING_ID (gstring))) | |
4283 | return gstring; | |
4284 | font_object = LGSTRING_FONT (gstring); | |
4285 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4286 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4287 | if (! font->driver->shape) |
4288 | return Qnil; | |
4289 | ||
40fb53d6 KH |
4290 | /* Try at most three times with larger gstring each time. */ |
4291 | for (i = 0; i < 3; i++) | |
4292 | { | |
40fb53d6 KH |
4293 | n = font->driver->shape (gstring); |
4294 | if (INTEGERP (n)) | |
4295 | break; | |
071132a9 KH |
4296 | gstring = larger_vector (gstring, |
4297 | ASIZE (gstring) + LGSTRING_GLYPH_LEN (gstring), | |
4298 | Qnil); | |
40fb53d6 | 4299 | } |
071132a9 | 4300 | if (i == 3 || XINT (n) == 0) |
1701724c | 4301 | return Qnil; |
071132a9 KH |
4302 | |
4303 | glyph = LGSTRING_GLYPH (gstring, 0); | |
fc3a285e KH |
4304 | from = LGLYPH_FROM (glyph); |
4305 | to = LGLYPH_TO (glyph); | |
4306 | for (i = 1, j = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 KH |
4307 | { |
4308 | Lisp_Object this = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 4309 | |
071132a9 KH |
4310 | if (NILP (this)) |
4311 | break; | |
4312 | if (NILP (LGLYPH_ADJUSTMENT (this))) | |
fc3a285e KH |
4313 | { |
4314 | if (j < i - 1) | |
4315 | for (; j < i; j++) | |
4316 | { | |
4317 | glyph = LGSTRING_GLYPH (gstring, j); | |
4318 | LGLYPH_SET_FROM (glyph, from); | |
4319 | LGLYPH_SET_TO (glyph, to); | |
4320 | } | |
4321 | from = LGLYPH_FROM (this); | |
4322 | to = LGLYPH_TO (this); | |
4323 | j = i; | |
4324 | } | |
071132a9 | 4325 | else |
b2937119 | 4326 | { |
fc3a285e KH |
4327 | if (from > LGLYPH_FROM (this)) |
4328 | from = LGLYPH_FROM (this); | |
4329 | if (to < LGLYPH_TO (this)) | |
4330 | to = LGLYPH_TO (this); | |
b2937119 | 4331 | } |
10d16101 | 4332 | } |
fc3a285e KH |
4333 | if (j < i - 1) |
4334 | for (; j < i; j++) | |
4335 | { | |
4336 | glyph = LGSTRING_GLYPH (gstring, j); | |
4337 | LGLYPH_SET_FROM (glyph, from); | |
4338 | LGLYPH_SET_TO (glyph, to); | |
4339 | } | |
071132a9 | 4340 | return composition_gstring_put_cache (gstring, XINT (n)); |
c2f5bfd6 KH |
4341 | } |
4342 | ||
6a3dadd2 KH |
4343 | #if 0 |
4344 | ||
733fd013 KH |
4345 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
4346 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. | |
51c01100 | 4347 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4348 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4349 | where |
4350 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4351 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4352 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4353 | |
4354 | If LANGYS is nil, the default langsys is selected. | |
4355 | ||
51c01100 JB |
4356 | The features are applied in the order they appear in the list. The |
4357 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4358 | list, and the remaining features are ignored. For instance, (vatu |
4359 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4360 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4361 | |
4362 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4363 | the glyph-string GSTRING-IN. |
e80e09b4 | 4364 | |
51c01100 | 4365 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4366 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4367 | this case, the value is the number of produced glyphs. | |
4368 | ||
4369 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4370 | the value is 0. | |
4371 | ||
51c01100 | 4372 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4373 | produced in GSTRING-OUT, and the value is nil. |
4374 | ||
4375 | See the documentation of `font-make-gstring' for the format of | |
4376 | glyph-string. */) | |
733fd013 KH |
4377 | (otf_features, gstring_in, from, to, gstring_out, index) |
4378 | Lisp_Object otf_features, gstring_in, from, to, gstring_out, index; | |
e80e09b4 KH |
4379 | { |
4380 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4381 | Lisp_Object val; |
4382 | struct font *font; | |
e80e09b4 KH |
4383 | int len, num; |
4384 | ||
733fd013 | 4385 | check_otf_features (otf_features); |
35027d0c KH |
4386 | CHECK_FONT_OBJECT (font_object); |
4387 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4388 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4389 | error ("Font backend %s can't drive OpenType GSUB table", |
4390 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4391 | CHECK_CONS (otf_features); |
4392 | CHECK_SYMBOL (XCAR (otf_features)); | |
4393 | val = XCDR (otf_features); | |
4394 | CHECK_SYMBOL (XCAR (val)); | |
4395 | val = XCDR (otf_features); | |
4396 | if (! NILP (val)) | |
4397 | CHECK_CONS (val); | |
e80e09b4 KH |
4398 | len = check_gstring (gstring_in); |
4399 | CHECK_VECTOR (gstring_out); | |
4400 | CHECK_NATNUM (from); | |
4401 | CHECK_NATNUM (to); | |
4402 | CHECK_NATNUM (index); | |
4403 | ||
4404 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4405 | args_out_of_range_3 (from, to, make_number (len)); | |
4406 | if (XINT (index) >= ASIZE (gstring_out)) | |
4407 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4408 | num = font->driver->otf_drive (font, otf_features, |
4409 | gstring_in, XINT (from), XINT (to), | |
4410 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4411 | if (num < 0) |
4412 | return Qnil; | |
4413 | return make_number (num); | |
4414 | } | |
4415 | ||
e80e09b4 KH |
4416 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
4417 | 3, 3, 0, | |
4418 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4419 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4420 | in this format: |
4421 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4422 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4423 | |
4424 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4425 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4426 | character code corresponding to the glyph or nil if there's no | |
4427 | corresponding character. */) | |
733fd013 KH |
4428 | (font_object, character, otf_features) |
4429 | Lisp_Object font_object, character, otf_features; | |
e80e09b4 KH |
4430 | { |
4431 | struct font *font; | |
4432 | Lisp_Object gstring_in, gstring_out, g; | |
4433 | Lisp_Object alternates; | |
4434 | int i, num; | |
4435 | ||
4436 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4437 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4438 | error ("Font backend %s can't drive OpenType GSUB table", |
4439 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4440 | CHECK_CHARACTER (character); |
733fd013 | 4441 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4442 | |
4443 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4444 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4445 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4446 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4447 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4448 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4449 | gstring_out = Ffont_make_gstring (font_object, |
4450 | make_number (ASIZE (gstring_out) * 2)); | |
4451 | alternates = Qnil; | |
4452 | for (i = 0; i < num; i++) | |
4453 | { | |
4454 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4455 | int c = LGLYPH_CHAR (g); |
4456 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4457 | |
4458 | alternates = Fcons (Fcons (make_number (code), | |
4459 | c > 0 ? make_number (c) : Qnil), | |
4460 | alternates); | |
4461 | } | |
4462 | return Fnreverse (alternates); | |
4463 | } | |
6a3dadd2 | 4464 | #endif /* 0 */ |
c2f5bfd6 KH |
4465 | |
4466 | #ifdef FONT_DEBUG | |
4467 | ||
4468 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4469 | doc: /* Open FONT-ENTITY. */) | |
4470 | (font_entity, size, frame) | |
4471 | Lisp_Object font_entity; | |
4472 | Lisp_Object size; | |
4473 | Lisp_Object frame; | |
4474 | { | |
4475 | int isize; | |
4476 | ||
4477 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4478 | if (NILP (frame)) |
4479 | frame = selected_frame; | |
4480 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4481 | |
35027d0c KH |
4482 | if (NILP (size)) |
4483 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4484 | else | |
4485 | { | |
4486 | CHECK_NUMBER_OR_FLOAT (size); | |
4487 | if (FLOATP (size)) | |
d03b5cdb | 4488 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), XFRAME (frame)->resy); |
35027d0c KH |
4489 | else |
4490 | isize = XINT (size); | |
4491 | if (isize == 0) | |
4492 | isize = 120; | |
4493 | } | |
c2f5bfd6 KH |
4494 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4495 | } | |
4496 | ||
4497 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4498 | doc: /* Close FONT-OBJECT. */) | |
4499 | (font_object, frame) | |
4500 | Lisp_Object font_object, frame; | |
4501 | { | |
4502 | CHECK_FONT_OBJECT (font_object); | |
4503 | if (NILP (frame)) | |
4504 | frame = selected_frame; | |
4505 | CHECK_LIVE_FRAME (frame); | |
4506 | font_close_object (XFRAME (frame), font_object); | |
4507 | return Qnil; | |
4508 | } | |
4509 | ||
4510 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4511 | doc: /* Return information about FONT-OBJECT. |
4512 | The value is a vector: | |
4513 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4514 | CAPABILITY ] |
e80e09b4 KH |
4515 | |
4516 | NAME is a string of the font name (or nil if the font backend doesn't | |
4517 | provide a name). | |
4518 | ||
4519 | FILENAME is a string of the font file (or nil if the font backend | |
4520 | doesn't provide a file name). | |
4521 | ||
4522 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4523 | ||
027a33c0 | 4524 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4525 | |
4526 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4527 | pixels. |
e80e09b4 | 4528 | |
e0708580 KH |
4529 | CAPABILITY is a list whose first element is a symbol representing the |
4530 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4531 | remaining elements describe the details of the font capability. |
e0708580 KH |
4532 | |
4533 | If the font is OpenType font, the form of the list is | |
4534 | \(opentype GSUB GPOS) | |
4535 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4536 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4537 | lists of the format: | |
4538 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4539 | ||
4540 | If the font is not OpenType font, currently the length of the form is | |
4541 | one. | |
e80e09b4 KH |
4542 | |
4543 | SCRIPT is a symbol representing OpenType script tag. | |
4544 | ||
4545 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4546 | representing the default langsys. | |
4547 | ||
51c01100 | 4548 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4549 | |
51c01100 | 4550 | If the font is not OpenType font, CAPABILITY is nil. */) |
c2f5bfd6 KH |
4551 | (font_object) |
4552 | Lisp_Object font_object; | |
4553 | { | |
4554 | struct font *font; | |
4555 | Lisp_Object val; | |
4556 | ||
4557 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4558 | ||
4559 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4560 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4561 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4562 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4563 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4564 | ASET (val, 4, make_number (font->ascent)); |
4565 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4566 | ASET (val, 6, make_number (font->space_width)); |
4567 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4568 | if (font->driver->otf_capability) |
e0708580 | 4569 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4570 | return val; |
4571 | } | |
4572 | ||
4573 | DEFUN ("get-font-glyphs", Fget_font_glyphs, Sget_font_glyphs, 2, 2, 0, | |
4574 | doc: /* Return a vector of glyphs of FONT-OBJECT for drawing STRING. | |
4575 | Each element is a vector [GLYPH-CODE LBEARING RBEARING WIDTH ASCENT DESCENT]. */) | |
4576 | (font_object, string) | |
4577 | Lisp_Object font_object, string; | |
4578 | { | |
4579 | struct font *font; | |
4580 | int i, len; | |
4581 | Lisp_Object vec; | |
4582 | ||
4583 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4584 | CHECK_STRING (string); | |
4585 | len = SCHARS (string); | |
4586 | vec = Fmake_vector (make_number (len), Qnil); | |
4587 | for (i = 0; i < len; i++) | |
4588 | { | |
4589 | Lisp_Object ch = Faref (string, make_number (i)); | |
4590 | Lisp_Object val; | |
4591 | int c = XINT (ch); | |
4592 | unsigned code; | |
2930d117 | 4593 | EMACS_INT cod; |
c2f5bfd6 KH |
4594 | struct font_metrics metrics; |
4595 | ||
2930d117 | 4596 | cod = code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4597 | if (code == FONT_INVALID_CODE) |
4598 | continue; | |
4599 | val = Fmake_vector (make_number (6), Qnil); | |
2930d117 | 4600 | if (cod <= MOST_POSITIVE_FIXNUM) |
c2f5bfd6 KH |
4601 | ASET (val, 0, make_number (code)); |
4602 | else | |
4603 | ASET (val, 0, Fcons (make_number (code >> 16), | |
4604 | make_number (code & 0xFFFF))); | |
51c01100 | 4605 | font->driver->text_extents (font, &code, 1, &metrics); |
c2f5bfd6 KH |
4606 | ASET (val, 1, make_number (metrics.lbearing)); |
4607 | ASET (val, 2, make_number (metrics.rbearing)); | |
4608 | ASET (val, 3, make_number (metrics.width)); | |
4609 | ASET (val, 4, make_number (metrics.ascent)); | |
4610 | ASET (val, 5, make_number (metrics.descent)); | |
4611 | ASET (vec, i, val); | |
4612 | } | |
4613 | return vec; | |
4614 | } | |
4615 | ||
ec6fe57c | 4616 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4617 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c KH |
4618 | FONT is a font-spec, font-entity, or font-object. */) |
4619 | (spec, font) | |
4620 | Lisp_Object spec, font; | |
4621 | { | |
4622 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4623 | CHECK_FONT (font); |
ec6fe57c KH |
4624 | |
4625 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4626 | } | |
4627 | ||
1701724c | 4628 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4629 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4630 | Optional second arg WINDOW, if non-nil, is a window displaying |
4631 | the current buffer. It defaults to the currently selected window. */) | |
1701724c KH |
4632 | (position, window, string) |
4633 | Lisp_Object position, window, string; | |
10d16101 KH |
4634 | { |
4635 | struct window *w; | |
e3ee0340 | 4636 | EMACS_INT pos; |
10d16101 | 4637 | |
1701724c KH |
4638 | if (NILP (string)) |
4639 | { | |
4640 | CHECK_NUMBER_COERCE_MARKER (position); | |
4641 | pos = XINT (position); | |
4642 | if (pos < BEGV || pos >= ZV) | |
4643 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4644 | } |
4645 | else | |
4646 | { | |
1701724c KH |
4647 | CHECK_NUMBER (position); |
4648 | CHECK_STRING (string); | |
4649 | pos = XINT (position); | |
4650 | if (pos < 0 || pos >= SCHARS (string)) | |
4651 | args_out_of_range (string, position); | |
1701724c | 4652 | } |
10d16101 KH |
4653 | if (NILP (window)) |
4654 | window = selected_window; | |
4655 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4656 | w = XWINDOW (window); |
10d16101 | 4657 | |
40fb53d6 | 4658 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4659 | } |
4660 | ||
c2f5bfd6 KH |
4661 | #if 0 |
4662 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4663 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4664 | The value is a number of glyphs drawn. | |
4665 | Type C-l to recover what previously shown. */) | |
4666 | (font_object, string) | |
4667 | Lisp_Object font_object, string; | |
4668 | { | |
4669 | Lisp_Object frame = selected_frame; | |
4670 | FRAME_PTR f = XFRAME (frame); | |
4671 | struct font *font; | |
4672 | struct face *face; | |
4673 | int i, len, width; | |
4674 | unsigned *code; | |
4675 | ||
4676 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4677 | CHECK_STRING (string); | |
4678 | len = SCHARS (string); | |
4679 | code = alloca (sizeof (unsigned) * len); | |
4680 | for (i = 0; i < len; i++) | |
4681 | { | |
4682 | Lisp_Object ch = Faref (string, make_number (i)); | |
4683 | Lisp_Object val; | |
4684 | int c = XINT (ch); | |
4685 | ||
4686 | code[i] = font->driver->encode_char (font, c); | |
4687 | if (code[i] == FONT_INVALID_CODE) | |
4688 | break; | |
4689 | } | |
4690 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4691 | face->fontp = font; | |
4692 | if (font->driver->prepare_face) | |
4693 | font->driver->prepare_face (f, face); | |
4694 | width = font->driver->text_extents (font, code, i, NULL); | |
4695 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4696 | if (font->driver->done_face) | |
4697 | font->driver->done_face (f, face); | |
4698 | face->fontp = NULL; | |
4699 | return make_number (len); | |
4700 | } | |
4701 | #endif | |
4702 | ||
4703 | #endif /* FONT_DEBUG */ | |
4704 | ||
a266686a KH |
4705 | #ifdef HAVE_WINDOW_SYSTEM |
4706 | ||
72606e45 KH |
4707 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4708 | doc: /* Return information about a font named NAME on frame FRAME. | |
4709 | If FRAME is omitted or nil, use the selected frame. | |
4710 | The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE, | |
4711 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, | |
4712 | where | |
4713 | OPENED-NAME is the name used for opening the font, | |
4714 | FULL-NAME is the full name of the font, | |
4715 | SIZE is the maximum bound width of the font, | |
4716 | HEIGHT is the height of the font, | |
4717 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, | |
4718 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4719 | how to compose characters. | |
4720 | If the named font is not yet loaded, return nil. */) | |
4721 | (name, frame) | |
4722 | Lisp_Object name, frame; | |
4723 | { | |
4724 | FRAME_PTR f; | |
4725 | struct font *font; | |
4726 | Lisp_Object info; | |
4727 | Lisp_Object font_object; | |
4728 | ||
4729 | (*check_window_system_func) (); | |
4730 | ||
4731 | if (! FONTP (name)) | |
4732 | CHECK_STRING (name); | |
4733 | if (NILP (frame)) | |
4734 | frame = selected_frame; | |
4735 | CHECK_LIVE_FRAME (frame); | |
4736 | f = XFRAME (frame); | |
4737 | ||
4738 | if (STRINGP (name)) | |
4739 | { | |
4740 | int fontset = fs_query_fontset (name, 0); | |
4741 | ||
4742 | if (fontset >= 0) | |
4743 | name = fontset_ascii (fontset); | |
4744 | font_object = font_open_by_name (f, (char *) SDATA (name)); | |
4745 | } | |
4746 | else if (FONT_OBJECT_P (name)) | |
4747 | font_object = name; | |
4748 | else if (FONT_ENTITY_P (name)) | |
4749 | font_object = font_open_entity (f, name, 0); | |
4750 | else | |
4751 | { | |
4752 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4753 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4754 | ||
4755 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4756 | } | |
4757 | if (NILP (font_object)) | |
4758 | return Qnil; | |
4759 | font = XFONT_OBJECT (font_object); | |
4760 | ||
4761 | info = Fmake_vector (make_number (7), Qnil); | |
4762 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
4763 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_NAME_INDEX); | |
4764 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); | |
4765 | XVECTOR (info)->contents[3] = make_number (font->height); | |
4766 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
4767 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
4768 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
4769 | ||
4770 | #if 0 | |
4771 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4772 | close it now. Perhaps, we should manage font-objects | |
4773 | by `reference-count'. */ | |
4774 | font_close_object (f, font_object); | |
4775 | #endif | |
4776 | return info; | |
4777 | } | |
a266686a | 4778 | #endif |
72606e45 | 4779 | |
c2f5bfd6 | 4780 | \f |
d0ab1ebe KH |
4781 | #define BUILD_STYLE_TABLE(TBL) \ |
4782 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4783 | ||
4784 | static Lisp_Object | |
4785 | build_style_table (entry, nelement) | |
4786 | struct table_entry *entry; | |
4787 | int nelement; | |
4788 | { | |
4789 | int i, j; | |
4790 | Lisp_Object table, elt; | |
17ab8f5d | 4791 | |
d0ab1ebe KH |
4792 | table = Fmake_vector (make_number (nelement), Qnil); |
4793 | for (i = 0; i < nelement; i++) | |
4794 | { | |
4795 | for (j = 0; entry[i].names[j]; j++); | |
4796 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4797 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4798 | for (j = 0; entry[i].names[j]; j++) | |
17ab8f5d | 4799 | ASET (elt, j + 1, intern (entry[i].names[j])); |
d0ab1ebe KH |
4800 | ASET (table, i, elt); |
4801 | } | |
4802 | return table; | |
4803 | } | |
4804 | ||
4805 | static Lisp_Object Vfont_log; | |
4806 | static int font_log_env_checked; | |
4807 | ||
d0818984 KH |
4808 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4809 | If ACTION is not nil, that is added to the log when font_add_log is | |
4810 | called next time. At that time, ACTION is set back to nil. */ | |
4811 | static Lisp_Object Vfont_log_deferred; | |
4812 | ||
4813 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4814 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4815 | opening), ARG is the argument for the action, and RESULT is the | |
4816 | result of the action. */ | |
d0ab1ebe KH |
4817 | void |
4818 | font_add_log (action, arg, result) | |
4819 | char *action; | |
4820 | Lisp_Object arg, result; | |
4821 | { | |
4822 | Lisp_Object tail, val; | |
4823 | int i; | |
4824 | ||
4825 | if (! font_log_env_checked) | |
4826 | { | |
4827 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
4828 | font_log_env_checked = 1; | |
4829 | } | |
4830 | if (EQ (Vfont_log, Qt)) | |
4831 | return; | |
d0818984 KH |
4832 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4833 | { | |
071132a9 | 4834 | char *str = (char *) SDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4835 | |
4836 | ASET (Vfont_log_deferred, 0, Qnil); | |
4837 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
4838 | AREF (Vfont_log_deferred, 2)); | |
4839 | } | |
4840 | ||
d0ab1ebe | 4841 | if (FONTP (arg)) |
db716644 KH |
4842 | { |
4843 | Lisp_Object tail, elt; | |
4844 | Lisp_Object equalstr = build_string ("="); | |
4845 | ||
4846 | val = Ffont_xlfd_name (arg, Qt); | |
4847 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
4848 | tail = XCDR (tail)) | |
4849 | { | |
4850 | elt = XCAR (tail); | |
49f9c344 KH |
4851 | if (EQ (XCAR (elt), QCscript) |
4852 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4853 | val = concat3 (val, SYMBOL_NAME (QCscript), |
4854 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4855 | else if (EQ (XCAR (elt), QClang) |
4856 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4857 | val = concat3 (val, SYMBOL_NAME (QClang), |
4858 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4859 | else if (EQ (XCAR (elt), QCotf) |
4860 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
4861 | val = concat3 (val, SYMBOL_NAME (QCotf), |
4862 | concat2 (equalstr, | |
4863 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
4864 | } | |
4865 | arg = val; | |
4866 | } | |
d0ab1ebe | 4867 | if (FONTP (result)) |
d26424c5 KH |
4868 | { |
4869 | val = Ffont_xlfd_name (result, Qt); | |
4870 | if (! FONT_SPEC_P (result)) | |
4871 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
4872 | build_string (":"), val); | |
4873 | result = val; | |
4874 | } | |
d0ab1ebe KH |
4875 | else if (CONSP (result)) |
4876 | { | |
4877 | result = Fcopy_sequence (result); | |
4878 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
4879 | { | |
4880 | val = XCAR (tail); | |
4881 | if (FONTP (val)) | |
4882 | val = Ffont_xlfd_name (val, Qt); | |
4883 | XSETCAR (tail, val); | |
4884 | } | |
4885 | } | |
4886 | else if (VECTORP (result)) | |
4887 | { | |
4888 | result = Fcopy_sequence (result); | |
4889 | for (i = 0; i < ASIZE (result); i++) | |
4890 | { | |
4891 | val = AREF (result, i); | |
4892 | if (FONTP (val)) | |
4893 | val = Ffont_xlfd_name (val, Qt); | |
4894 | ASET (result, i, val); | |
4895 | } | |
4896 | } | |
4897 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
4898 | } | |
4899 | ||
d0818984 KH |
4900 | /* Record a font-related logging data to be added to Vfont_log when |
4901 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
4902 | as font_add_log. */ | |
4903 | ||
4904 | void | |
4905 | font_deferred_log (action, arg, result) | |
4906 | char *action; | |
4907 | Lisp_Object arg, result; | |
4908 | { | |
4909 | ASET (Vfont_log_deferred, 0, build_string (action)); | |
4910 | ASET (Vfont_log_deferred, 1, arg); | |
4911 | ASET (Vfont_log_deferred, 2, result); | |
4912 | } | |
4913 | ||
c2f5bfd6 KH |
4914 | extern void syms_of_ftfont P_ (()); |
4915 | extern void syms_of_xfont P_ (()); | |
4916 | extern void syms_of_xftfont P_ (()); | |
4917 | extern void syms_of_ftxfont P_ (()); | |
4918 | extern void syms_of_bdffont P_ (()); | |
4919 | extern void syms_of_w32font P_ (()); | |
4920 | extern void syms_of_atmfont P_ (()); | |
edfda783 | 4921 | extern void syms_of_nsfont P_ (()); |
c2f5bfd6 KH |
4922 | |
4923 | void | |
4924 | syms_of_font () | |
4925 | { | |
4007dd1c KH |
4926 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
4927 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
4928 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
4929 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
4930 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
4931 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 4932 | |
1701724c KH |
4933 | staticpro (&font_charset_alist); |
4934 | font_charset_alist = Qnil; | |
4935 | ||
35027d0c KH |
4936 | DEFSYM (Qfont_spec, "font-spec"); |
4937 | DEFSYM (Qfont_entity, "font-entity"); | |
4938 | DEFSYM (Qfont_object, "font-object"); | |
4939 | ||
e0708580 | 4940 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 4941 | |
9e1bb909 | 4942 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
4943 | DEFSYM (Qiso8859_1, "iso8859-1"); |
4944 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
4945 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 4946 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 4947 | |
071132a9 KH |
4948 | DEFSYM (QCf, "Cf"); |
4949 | ||
c2f5bfd6 | 4950 | DEFSYM (QCotf, ":otf"); |
35027d0c | 4951 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 4952 | DEFSYM (QCscript, ":script"); |
4c496d0d | 4953 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
4954 | |
4955 | DEFSYM (QCfoundry, ":foundry"); | |
4956 | DEFSYM (QCadstyle, ":adstyle"); | |
4957 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
4958 | DEFSYM (QCspacing, ":spacing"); |
4959 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 4960 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
4961 | DEFSYM (QCavgwidth, ":avgwidth"); |
4962 | DEFSYM (QCfont_entity, ":font-entity"); | |
4963 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 4964 | |
ec6fe57c KH |
4965 | DEFSYM (Qc, "c"); |
4966 | DEFSYM (Qm, "m"); | |
4967 | DEFSYM (Qp, "p"); | |
4968 | DEFSYM (Qd, "d"); | |
4969 | ||
c2f5bfd6 KH |
4970 | staticpro (&null_vector); |
4971 | null_vector = Fmake_vector (make_number (0), Qnil); | |
4972 | ||
4973 | staticpro (&scratch_font_spec); | |
4974 | scratch_font_spec = Ffont_spec (0, NULL); | |
4975 | staticpro (&scratch_font_prefer); | |
4976 | scratch_font_prefer = Ffont_spec (0, NULL); | |
4977 | ||
d0818984 KH |
4978 | staticpro (&Vfont_log_deferred); |
4979 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
4980 | ||
6a3dadd2 | 4981 | #if 0 |
733fd013 KH |
4982 | #ifdef HAVE_LIBOTF |
4983 | staticpro (&otf_list); | |
4984 | otf_list = Qnil; | |
6a3dadd2 KH |
4985 | #endif /* HAVE_LIBOTF */ |
4986 | #endif /* 0 */ | |
733fd013 | 4987 | |
c2f5bfd6 KH |
4988 | defsubr (&Sfontp); |
4989 | defsubr (&Sfont_spec); | |
4990 | defsubr (&Sfont_get); | |
51cf11be | 4991 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 4992 | defsubr (&Sfont_face_attributes); |
51cf11be | 4993 | #endif |
c2f5bfd6 KH |
4994 | defsubr (&Sfont_put); |
4995 | defsubr (&Slist_fonts); | |
35027d0c | 4996 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
4997 | defsubr (&Sfind_font); |
4998 | defsubr (&Sfont_xlfd_name); | |
4999 | defsubr (&Sclear_font_cache); | |
071132a9 | 5000 | defsubr (&Sfont_shape_gstring); |
6a3dadd2 | 5001 | #if 0 |
733fd013 | 5002 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5003 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5004 | #endif /* 0 */ |
c2f5bfd6 KH |
5005 | |
5006 | #ifdef FONT_DEBUG | |
5007 | defsubr (&Sopen_font); | |
5008 | defsubr (&Sclose_font); | |
5009 | defsubr (&Squery_font); | |
5010 | defsubr (&Sget_font_glyphs); | |
ec6fe57c | 5011 | defsubr (&Sfont_match_p); |
10d16101 | 5012 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5013 | #if 0 |
5014 | defsubr (&Sdraw_string); | |
5015 | #endif | |
5016 | #endif /* FONT_DEBUG */ | |
a266686a | 5017 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5018 | defsubr (&Sfont_info); |
a266686a | 5019 | #endif |
c2f5bfd6 | 5020 | |
819e81df KH |
5021 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, |
5022 | doc: /* | |
5023 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5024 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5025 | where ENCODING is a charset or a char-table, | |
5026 | and REPERTORY is a charset, a char-table, or nil. | |
5027 | ||
027a33c0 | 5028 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5029 | \(REGEXP . ENCODING). |
5030 | ||
5031 | ENCODING is for converting a character to a glyph code of the font. | |
5032 | If ENCODING is a charset, encoding a character by the charset gives | |
5033 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5034 | the table by a character gives the corresponding glyph code. | |
5035 | ||
5036 | REPERTORY specifies a repertory of characters supported by the font. | |
5037 | If REPERTORY is a charset, all characters beloging to the charset are | |
5038 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 5039 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5040 | gets the repertory information by an opened font and ENCODING. */); |
5041 | Vfont_encoding_alist = Qnil; | |
5042 | ||
d0ab1ebe KH |
5043 | DEFVAR_LISP_NOPRO ("font-weight-table", &Vfont_weight_table, |
5044 | doc: /* Vector of valid font weight values. | |
5045 | Each element has the form: | |
5046 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5047 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe KH |
5048 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
5049 | ||
5050 | DEFVAR_LISP_NOPRO ("font-slant-table", &Vfont_slant_table, | |
5051 | doc: /* Vector of font slant symbols vs the corresponding numeric values. | |
17ab8f5d | 5052 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe KH |
5053 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
5054 | ||
5055 | DEFVAR_LISP_NOPRO ("font-width-table", &Vfont_width_table, | |
5056 | doc: /* Alist of font width symbols vs the corresponding numeric values. | |
17ab8f5d | 5057 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe KH |
5058 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
5059 | ||
5060 | staticpro (&font_style_table); | |
5061 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
5062 | ASET (font_style_table, 0, Vfont_weight_table); | |
5063 | ASET (font_style_table, 1, Vfont_slant_table); | |
5064 | ASET (font_style_table, 2, Vfont_width_table); | |
5065 | ||
5066 | DEFVAR_LISP ("font-log", &Vfont_log, doc: /* | |
5067 | *Logging list of font related actions and results. | |
5068 | The value t means to suppress the logging. | |
5069 | The initial value is set to nil if the environment variable | |
5070 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5071 | Vfont_log = Qnil; | |
5072 | ||
819e81df | 5073 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5074 | #ifdef HAVE_FREETYPE |
35027d0c | 5075 | syms_of_ftfont (); |
c2f5bfd6 | 5076 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5077 | syms_of_xfont (); |
5078 | syms_of_ftxfont (); | |
c2f5bfd6 | 5079 | #ifdef HAVE_XFT |
35027d0c | 5080 | syms_of_xftfont (); |
c2f5bfd6 KH |
5081 | #endif /* HAVE_XFT */ |
5082 | #endif /* HAVE_X_WINDOWS */ | |
5083 | #else /* not HAVE_FREETYPE */ | |
5084 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5085 | syms_of_xfont (); |
c2f5bfd6 KH |
5086 | #endif /* HAVE_X_WINDOWS */ |
5087 | #endif /* not HAVE_FREETYPE */ | |
5088 | #ifdef HAVE_BDFFONT | |
35027d0c | 5089 | syms_of_bdffont (); |
c2f5bfd6 KH |
5090 | #endif /* HAVE_BDFFONT */ |
5091 | #ifdef WINDOWSNT | |
35027d0c | 5092 | syms_of_w32font (); |
c2f5bfd6 | 5093 | #endif /* WINDOWSNT */ |
edfda783 AR |
5094 | #ifdef HAVE_NS |
5095 | syms_of_nsfont (); | |
5096 | #endif /* HAVE_NS */ | |
819e81df | 5097 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5098 | } |
885b7d09 MB |
5099 | |
5100 | /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846 | |
5101 | (do not change this comment) */ |