Commit | Line | Data |
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c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
114f9c96 GM |
2 | Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
3 | Copyright (C) 2006, 2007, 2008, 2009, 2010 | |
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> | |
d7306fe6 | 26 | #include <setjmp.h> |
c2f5bfd6 KH |
27 | |
28 | #include "lisp.h" | |
29 | #include "buffer.h" | |
30 | #include "frame.h" | |
10d16101 | 31 | #include "window.h" |
c2f5bfd6 KH |
32 | #include "dispextern.h" |
33 | #include "charset.h" | |
34 | #include "character.h" | |
35 | #include "composite.h" | |
36 | #include "fontset.h" | |
37 | #include "font.h" | |
38 | ||
43c0454d KH |
39 | #ifdef HAVE_X_WINDOWS |
40 | #include "xterm.h" | |
41 | #endif /* HAVE_X_WINDOWS */ | |
42 | ||
43 | #ifdef HAVE_NTGUI | |
44 | #include "w32term.h" | |
45 | #endif /* HAVE_NTGUI */ | |
46 | ||
edfda783 AR |
47 | #ifdef HAVE_NS |
48 | #include "nsterm.h" | |
49 | #endif /* HAVE_NS */ | |
50 | ||
e0708580 KH |
51 | Lisp_Object Qopentype; |
52 | ||
35027d0c | 53 | /* Important character set strings. */ |
9e1bb909 | 54 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 55 | |
edfda783 | 56 | #define DEFAULT_ENCODING Qiso8859_1 |
edfda783 | 57 | |
071132a9 KH |
58 | /* Unicode category `Cf'. */ |
59 | static Lisp_Object QCf; | |
60 | ||
c2f5bfd6 KH |
61 | /* Special vector of zero length. This is repeatedly used by (struct |
62 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 63 | static Lisp_Object null_vector; |
c2f5bfd6 | 64 | |
d0ab1ebe KH |
65 | static Lisp_Object Vfont_weight_table, Vfont_slant_table, Vfont_width_table; |
66 | ||
67 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ | |
c2f5bfd6 KH |
68 | static Lisp_Object font_style_table; |
69 | ||
d0ab1ebe KH |
70 | /* Structure used for tables mapping weight, slant, and width numeric |
71 | values and their names. */ | |
72 | ||
73 | struct table_entry | |
74 | { | |
75 | int numeric; | |
76 | /* The first one is a valid name as a face attribute. | |
77 | The second one (if any) is a typical name in XLFD field. */ | |
5e2327cf | 78 | const char *names[5]; |
d0ab1ebe KH |
79 | }; |
80 | ||
81 | /* Table of weight numeric values and their names. This table must be | |
82 | sorted by numeric values in ascending order. */ | |
83 | ||
5e2327cf | 84 | static const struct table_entry weight_table[] = |
d0ab1ebe KH |
85 | { |
86 | { 0, { "thin" }}, | |
87 | { 20, { "ultra-light", "ultralight" }}, | |
88 | { 40, { "extra-light", "extralight" }}, | |
89 | { 50, { "light" }}, | |
90 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
c2694a06 | 91 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
92 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, |
93 | { 200, { "bold" }}, | |
94 | { 205, { "extra-bold", "extrabold" }}, | |
95 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
96 | }; | |
97 | ||
98 | /* Table of slant numeric values and their names. This table must be | |
99 | sorted by numeric values in ascending order. */ | |
100 | ||
5e2327cf | 101 | static const struct table_entry slant_table[] = |
d0ab1ebe KH |
102 | { |
103 | { 0, { "reverse-oblique", "ro" }}, | |
104 | { 10, { "reverse-italic", "ri" }}, | |
c2694a06 | 105 | { 100, { "normal", "r", "unspecified" }}, |
d0ab1ebe KH |
106 | { 200, { "italic" ,"i", "ot" }}, |
107 | { 210, { "oblique", "o" }} | |
108 | }; | |
109 | ||
110 | /* Table of width numeric values and their names. This table must be | |
111 | sorted by numeric values in ascending order. */ | |
112 | ||
5e2327cf | 113 | static const struct table_entry width_table[] = |
d0ab1ebe KH |
114 | { |
115 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
116 | { 63, { "extra-condensed", "extracondensed" }}, | |
117 | { 75, { "condensed", "compressed", "narrow" }}, | |
118 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
c2694a06 | 119 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
120 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, |
121 | { 125, { "expanded" }}, | |
122 | { 150, { "extra-expanded", "extraexpanded" }}, | |
123 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
124 | }; | |
125 | ||
35027d0c | 126 | Lisp_Object QCfoundry, QCadstyle, QCregistry; |
c2f5bfd6 | 127 | /* Symbols representing keys of font extra info. */ |
35027d0c KH |
128 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
129 | Lisp_Object QCantialias, QCfont_entity, QCfc_unknown_spec; | |
ec6fe57c KH |
130 | /* Symbols representing values of font spacing property. */ |
131 | Lisp_Object Qc, Qm, Qp, Qd; | |
cf702558 CY |
132 | /* Special ADSTYLE properties to avoid fonts used for Latin |
133 | characters; used in xfont.c and ftfont.c. */ | |
134 | Lisp_Object Qja, Qko; | |
c2f5bfd6 | 135 | |
42707278 JD |
136 | Lisp_Object QCuser_spec; |
137 | ||
819e81df KH |
138 | Lisp_Object Vfont_encoding_alist; |
139 | ||
1701724c KH |
140 | /* Alist of font registry symbol and the corresponding charsets |
141 | information. The information is retrieved from | |
142 | Vfont_encoding_alist on demand. | |
143 | ||
144 | Eash element has the form: | |
145 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
146 | or | |
147 | (REGISTRY . nil) | |
148 | ||
149 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
150 | encodes a character code to a glyph code of a font, and | |
151 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
152 | character is supported by a font. | |
153 | ||
154 | The latter form means that the information for REGISTRY couldn't be | |
155 | retrieved. */ | |
156 | static Lisp_Object font_charset_alist; | |
157 | ||
f697fff0 KH |
158 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
159 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
160 | here. */ |
161 | static struct font_driver_list *font_driver_list; | |
162 | ||
35027d0c KH |
163 | \f |
164 | ||
165 | /* Creaters of font-related Lisp object. */ | |
166 | ||
167 | Lisp_Object | |
971de7fb | 168 | font_make_spec (void) |
35027d0c KH |
169 | { |
170 | Lisp_Object font_spec; | |
171 | struct font_spec *spec | |
172 | = ((struct font_spec *) | |
173 | allocate_pseudovector (VECSIZE (struct font_spec), | |
174 | FONT_SPEC_MAX, PVEC_FONT)); | |
175 | XSETFONT (font_spec, spec); | |
176 | return font_spec; | |
177 | } | |
178 | ||
179 | Lisp_Object | |
971de7fb | 180 | font_make_entity (void) |
35027d0c KH |
181 | { |
182 | Lisp_Object font_entity; | |
183 | struct font_entity *entity | |
184 | = ((struct font_entity *) | |
185 | allocate_pseudovector (VECSIZE (struct font_entity), | |
186 | FONT_ENTITY_MAX, PVEC_FONT)); | |
187 | XSETFONT (font_entity, entity); | |
188 | return font_entity; | |
189 | } | |
190 | ||
51c13510 KH |
191 | /* Create a font-object whose structure size is SIZE. If ENTITY is |
192 | not nil, copy properties from ENTITY to the font-object. If | |
193 | PIXELSIZE is positive, set the `size' property to PIXELSIZE. */ | |
35027d0c | 194 | Lisp_Object |
971de7fb | 195 | font_make_object (int size, Lisp_Object entity, int pixelsize) |
35027d0c KH |
196 | { |
197 | Lisp_Object font_object; | |
198 | struct font *font | |
199 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
51c13510 KH |
200 | int i; |
201 | ||
35027d0c KH |
202 | XSETFONT (font_object, font); |
203 | ||
51c13510 KH |
204 | if (! NILP (entity)) |
205 | { | |
206 | for (i = 1; i < FONT_SPEC_MAX; i++) | |
207 | font->props[i] = AREF (entity, i); | |
208 | if (! NILP (AREF (entity, FONT_EXTRA_INDEX))) | |
209 | font->props[FONT_EXTRA_INDEX] | |
581e51e8 | 210 | = Fcopy_alist (AREF (entity, FONT_EXTRA_INDEX)); |
51c13510 KH |
211 | } |
212 | if (size > 0) | |
213 | font->props[FONT_SIZE_INDEX] = make_number (pixelsize); | |
35027d0c KH |
214 | return font_object; |
215 | } | |
216 | ||
217 | \f | |
218 | ||
f57e2426 J |
219 | static int font_pixel_size (FRAME_PTR f, Lisp_Object); |
220 | static Lisp_Object font_open_entity (FRAME_PTR, Lisp_Object, int); | |
221 | static Lisp_Object font_matching_entity (FRAME_PTR, Lisp_Object *, | |
222 | Lisp_Object); | |
c2f5bfd6 KH |
223 | |
224 | /* Number of registered font drivers. */ | |
225 | static int num_font_drivers; | |
226 | ||
35027d0c KH |
227 | |
228 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
229 | If STR is "*", it returns nil. | |
2f286d4f KH |
230 | If FORCE_SYMBOL is zero and all characters in STR are digits, it |
231 | returns an integer. Otherwise, it returns a symbol interned from | |
232 | STR. */ | |
35027d0c KH |
233 | |
234 | Lisp_Object | |
971de7fb | 235 | font_intern_prop (char *str, int len, int force_symbol) |
35027d0c KH |
236 | { |
237 | int i; | |
d0ab1ebe | 238 | Lisp_Object tem; |
35027d0c | 239 | Lisp_Object obarray; |
545312c2 | 240 | int nbytes, nchars; |
35027d0c KH |
241 | |
242 | if (len == 1 && *str == '*') | |
243 | return Qnil; | |
2f286d4f | 244 | if (!force_symbol && len >=1 && isdigit (*str)) |
35027d0c KH |
245 | { |
246 | for (i = 1; i < len; i++) | |
247 | if (! isdigit (str[i])) | |
248 | break; | |
249 | if (i == len) | |
250 | return make_number (atoi (str)); | |
251 | } | |
252 | ||
545312c2 KH |
253 | /* The following code is copied from the function intern (in |
254 | lread.c), and modified to suite our purpose. */ | |
35027d0c KH |
255 | obarray = Vobarray; |
256 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) | |
257 | obarray = check_obarray (obarray); | |
72d36834 | 258 | parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes); |
545312c2 KH |
259 | if (len == nchars || len != nbytes) |
260 | /* CONTENTS contains no multibyte sequences or contains an invalid | |
261 | multibyte sequence. We'll make a unibyte string. */ | |
262 | tem = oblookup (obarray, str, len, len); | |
263 | else | |
264 | tem = oblookup (obarray, str, nchars, len); | |
35027d0c KH |
265 | if (SYMBOLP (tem)) |
266 | return tem; | |
545312c2 KH |
267 | if (len == nchars || len != nbytes) |
268 | tem = make_unibyte_string (str, len); | |
269 | else | |
270 | tem = make_multibyte_string (str, nchars, len); | |
271 | return Fintern (tem, obarray); | |
35027d0c KH |
272 | } |
273 | ||
9331887d | 274 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 275 | |
9331887d | 276 | static int |
971de7fb | 277 | font_pixel_size (FRAME_PTR f, Lisp_Object spec) |
9331887d | 278 | { |
819e81df | 279 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
280 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
281 | double point_size; | |
35027d0c | 282 | int dpi, pixel_size; |
d0ab1ebe | 283 | Lisp_Object val; |
51c01100 | 284 | |
9331887d KH |
285 | if (INTEGERP (size)) |
286 | return XINT (size); | |
287 | if (NILP (size)) | |
819e81df | 288 | return 0; |
d0ab1ebe | 289 | font_assert (FLOATP (size)); |
9331887d | 290 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
291 | val = AREF (spec, FONT_DPI_INDEX); |
292 | if (INTEGERP (val)) | |
17e28f6d | 293 | dpi = XINT (val); |
9331887d KH |
294 | else |
295 | dpi = f->resy; | |
296 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
297 | return pixel_size; | |
819e81df KH |
298 | #else |
299 | return 1; | |
300 | #endif | |
9331887d KH |
301 | } |
302 | ||
c2f5bfd6 | 303 | |
35027d0c KH |
304 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
305 | font vector. If VAL is not valid (i.e. not registered in | |
306 | font_style_table), return -1 if NOERROR is zero, and return a | |
307 | proper index if NOERROR is nonzero. In that case, register VAL in | |
308 | font_style_table if VAL is a symbol, and return a closest index if | |
309 | VAL is an integer. */ | |
c2f5bfd6 | 310 | |
35027d0c | 311 | int |
971de7fb | 312 | font_style_to_value (enum font_property_index prop, Lisp_Object val, int noerror) |
c2f5bfd6 | 313 | { |
35027d0c KH |
314 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
315 | int len = ASIZE (table); | |
d0ab1ebe | 316 | int i, j; |
c2f5bfd6 | 317 | |
35027d0c | 318 | if (SYMBOLP (val)) |
c2f5bfd6 | 319 | { |
72606e45 | 320 | unsigned char *s; |
35027d0c KH |
321 | Lisp_Object args[2], elt; |
322 | ||
323 | /* At first try exact match. */ | |
324 | for (i = 0; i < len; i++) | |
d0ab1ebe KH |
325 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
326 | if (EQ (val, AREF (AREF (table, i), j))) | |
327 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
328 | | (i << 4) | (j - 1)); | |
35027d0c | 329 | /* Try also with case-folding match. */ |
72606e45 | 330 | s = SDATA (SYMBOL_NAME (val)); |
35027d0c | 331 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
332 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
333 | { | |
334 | elt = AREF (AREF (table, i), j); | |
72606e45 | 335 | if (xstrcasecmp (s, SDATA (SYMBOL_NAME (elt))) == 0) |
d0ab1ebe KH |
336 | return ((XINT (AREF (AREF (table, i), 0)) << 8) |
337 | | (i << 4) | (j - 1)); | |
338 | } | |
35027d0c KH |
339 | if (! noerror) |
340 | return -1; | |
341 | if (len == 255) | |
342 | abort (); | |
c2694a06 | 343 | elt = Fmake_vector (make_number (2), make_number (100)); |
d0ab1ebe | 344 | ASET (elt, 1, val); |
35027d0c | 345 | args[0] = table; |
d0ab1ebe | 346 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 347 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
c2694a06 | 348 | return (100 << 8) | (i << 4); |
c2f5bfd6 | 349 | } |
35027d0c KH |
350 | else |
351 | { | |
d0ab1ebe | 352 | int i, last_n; |
35027d0c | 353 | int numeric = XINT (val); |
c2f5bfd6 | 354 | |
d0ab1ebe | 355 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 356 | { |
d0ab1ebe | 357 | int n = XINT (AREF (AREF (table, i), 0)); |
c2f5bfd6 | 358 | |
35027d0c | 359 | if (numeric == n) |
d0ab1ebe | 360 | return (n << 8) | (i << 4); |
35027d0c KH |
361 | if (numeric < n) |
362 | { | |
363 | if (! noerror) | |
364 | return -1; | |
d0ab1ebe KH |
365 | return ((i == 0 || n - numeric < numeric - last_n) |
366 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 367 | } |
35027d0c | 368 | last_n = n; |
35027d0c KH |
369 | } |
370 | if (! noerror) | |
371 | return -1; | |
d0ab1ebe | 372 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
373 | } |
374 | } | |
c2f5bfd6 KH |
375 | |
376 | Lisp_Object | |
971de7fb | 377 | font_style_symbolic (Lisp_Object font, enum font_property_index prop, int for_face) |
c2f5bfd6 | 378 | { |
3ef8c1b4 | 379 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
380 | Lisp_Object table, elt; |
381 | int i; | |
c2f5bfd6 | 382 | |
35027d0c KH |
383 | if (NILP (val)) |
384 | return Qnil; | |
385 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
d0ab1ebe KH |
386 | i = XINT (val) & 0xFF; |
387 | font_assert (((i >> 4) & 0xF) < ASIZE (table)); | |
388 | elt = AREF (table, ((i >> 4) & 0xF)); | |
389 | font_assert ((i & 0xF) + 1 < ASIZE (elt)); | |
ba3de0e8 | 390 | return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
6fe9826d JR |
391 | } |
392 | ||
819e81df KH |
393 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
394 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
395 | of the font. REPERTORY is a charset symbol or nil. */ | |
396 | ||
397 | Lisp_Object | |
971de7fb | 398 | find_font_encoding (Lisp_Object fontname) |
819e81df KH |
399 | { |
400 | Lisp_Object tail, elt; | |
401 | ||
402 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
403 | { | |
404 | elt = XCAR (tail); | |
405 | if (CONSP (elt) | |
406 | && STRINGP (XCAR (elt)) | |
407 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
408 | && (SYMBOLP (XCDR (elt)) | |
409 | ? CHARSETP (XCDR (elt)) | |
410 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
411 | return (XCDR (elt)); | |
412 | } | |
182ba28c | 413 | return Qnil; |
819e81df KH |
414 | } |
415 | ||
1701724c KH |
416 | /* Return encoding charset and repertory charset for REGISTRY in |
417 | ENCODING and REPERTORY correspondingly. If correct information for | |
418 | REGISTRY is available, return 0. Otherwise return -1. */ | |
419 | ||
420 | int | |
971de7fb | 421 | font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory) |
1701724c KH |
422 | { |
423 | Lisp_Object val; | |
424 | int encoding_id, repertory_id; | |
425 | ||
35027d0c | 426 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
427 | if (! NILP (val)) |
428 | { | |
429 | val = XCDR (val); | |
430 | if (NILP (val)) | |
431 | return -1; | |
432 | encoding_id = XINT (XCAR (val)); | |
433 | repertory_id = XINT (XCDR (val)); | |
434 | } | |
435 | else | |
436 | { | |
437 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
438 | if (SYMBOLP (val) && CHARSETP (val)) | |
439 | { | |
440 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
441 | } | |
442 | else if (CONSP (val)) | |
443 | { | |
444 | if (! CHARSETP (XCAR (val))) | |
445 | goto invalid_entry; | |
446 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
447 | if (NILP (XCDR (val))) | |
448 | repertory_id = -1; | |
449 | else | |
450 | { | |
451 | if (! CHARSETP (XCDR (val))) | |
452 | goto invalid_entry; | |
453 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
454 | } | |
51c01100 | 455 | } |
1701724c KH |
456 | else |
457 | goto invalid_entry; | |
458 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
459 | font_charset_alist | |
460 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
461 | } | |
462 | ||
463 | if (encoding) | |
464 | *encoding = CHARSET_FROM_ID (encoding_id); | |
465 | if (repertory) | |
466 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
467 | return 0; | |
468 | ||
469 | invalid_entry: | |
470 | font_charset_alist | |
471 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
472 | return -1; | |
473 | } | |
474 | ||
c2f5bfd6 | 475 | \f |
45eb10fb KH |
476 | /* Font property value validaters. See the comment of |
477 | font_property_table for the meaning of the arguments. */ | |
478 | ||
f57e2426 J |
479 | static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object); |
480 | static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object); | |
481 | static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object); | |
482 | static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object); | |
483 | static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object); | |
484 | static int get_font_prop_index (Lisp_Object); | |
c2f5bfd6 KH |
485 | |
486 | static Lisp_Object | |
971de7fb | 487 | font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
488 | { |
489 | if (STRINGP (val)) | |
35027d0c KH |
490 | val = Fintern (val, Qnil); |
491 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 492 | val = Qerror; |
35027d0c KH |
493 | else if (EQ (prop, QCregistry)) |
494 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
495 | return val; |
496 | } | |
497 | ||
35027d0c | 498 | |
c2f5bfd6 | 499 | static Lisp_Object |
971de7fb | 500 | font_prop_validate_style (Lisp_Object style, Lisp_Object val) |
c2f5bfd6 | 501 | { |
35027d0c KH |
502 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
503 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
504 | : FONT_WIDTH_INDEX); | |
505 | int n; | |
506 | if (INTEGERP (val)) | |
c2f5bfd6 | 507 | { |
35027d0c | 508 | n = XINT (val); |
64b900e3 | 509 | if (((n >> 4) & 0xF) |
35027d0c | 510 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
511 | val = Qerror; |
512 | else | |
513 | { | |
64b900e3 KH |
514 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
515 | ||
516 | if ((n & 0xF) + 1 >= ASIZE (elt)) | |
517 | val = Qerror; | |
518 | else if (XINT (AREF (elt, 0)) != (n >> 8)) | |
c2f5bfd6 KH |
519 | val = Qerror; |
520 | } | |
521 | } | |
35027d0c KH |
522 | else if (SYMBOLP (val)) |
523 | { | |
524 | int n = font_style_to_value (prop, val, 0); | |
525 | ||
526 | val = n >= 0 ? make_number (n) : Qerror; | |
527 | } | |
528 | else | |
529 | val = Qerror; | |
c2f5bfd6 KH |
530 | return val; |
531 | } | |
532 | ||
533 | static Lisp_Object | |
971de7fb | 534 | font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
535 | { |
536 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
537 | ? val : Qerror); | |
538 | } | |
539 | ||
540 | static Lisp_Object | |
971de7fb | 541 | font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val) |
ec6fe57c KH |
542 | { |
543 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
544 | return val; | |
3692570f KH |
545 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
546 | { | |
547 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
548 | ||
549 | if (spacing == 'c' || spacing == 'C') | |
550 | return make_number (FONT_SPACING_CHARCELL); | |
551 | if (spacing == 'm' || spacing == 'M') | |
552 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 553 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
554 | return make_number (FONT_SPACING_PROPORTIONAL); |
555 | if (spacing == 'd' || spacing == 'D') | |
556 | return make_number (FONT_SPACING_DUAL); | |
557 | } | |
ec6fe57c KH |
558 | return Qerror; |
559 | } | |
560 | ||
1701724c | 561 | static Lisp_Object |
971de7fb | 562 | font_prop_validate_otf (Lisp_Object prop, Lisp_Object val) |
1701724c KH |
563 | { |
564 | Lisp_Object tail, tmp; | |
565 | int i; | |
566 | ||
567 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
568 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
569 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
570 | if (! CONSP (val)) | |
571 | return Qerror; | |
572 | if (! SYMBOLP (XCAR (val))) | |
573 | return Qerror; | |
574 | tail = XCDR (val); | |
575 | if (NILP (tail)) | |
576 | return val; | |
577 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
578 | return Qerror; | |
579 | for (i = 0; i < 2; i++) | |
580 | { | |
581 | tail = XCDR (tail); | |
582 | if (NILP (tail)) | |
583 | return val; | |
584 | if (! CONSP (tail)) | |
585 | return Qerror; | |
586 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
587 | if (! SYMBOLP (XCAR (tmp))) | |
588 | return Qerror; | |
589 | if (! NILP (tmp)) | |
590 | return Qerror; | |
591 | } | |
592 | return val; | |
593 | } | |
594 | ||
ec6fe57c KH |
595 | /* Structure of known font property keys and validater of the |
596 | values. */ | |
04bab72c | 597 | static const struct |
c2f5bfd6 | 598 | { |
ec6fe57c | 599 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 600 | Lisp_Object *key; |
45eb10fb KH |
601 | /* Function to validate PROP's value VAL, or NULL if any value is |
602 | ok. The value is VAL or its regularized value if VAL is valid, | |
603 | and Qerror if not. */ | |
f57e2426 | 604 | Lisp_Object (*validater) (Lisp_Object prop, Lisp_Object val); |
ec6fe57c KH |
605 | } font_property_table[] = |
606 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
607 | { &QCfoundry, font_prop_validate_symbol }, |
608 | { &QCfamily, font_prop_validate_symbol }, | |
609 | { &QCadstyle, font_prop_validate_symbol }, | |
610 | { &QCregistry, font_prop_validate_symbol }, | |
611 | { &QCweight, font_prop_validate_style }, | |
612 | { &QCslant, font_prop_validate_style }, | |
613 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 614 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
615 | { &QCdpi, font_prop_validate_non_neg }, |
616 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
617 | { &QCavgwidth, font_prop_validate_non_neg }, |
618 | /* The order of the above entries must match with enum | |
619 | font_property_index. */ | |
620 | { &QClang, font_prop_validate_symbol }, | |
621 | { &QCscript, font_prop_validate_symbol }, | |
622 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
623 | }; |
624 | ||
45eb10fb | 625 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
626 | #define FONT_PROPERTY_TABLE_SIZE \ |
627 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
628 | ||
45eb10fb | 629 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 630 | already known property. */ |
45eb10fb | 631 | |
ec6fe57c | 632 | static int |
971de7fb | 633 | get_font_prop_index (Lisp_Object key) |
c2f5bfd6 | 634 | { |
35027d0c KH |
635 | int i; |
636 | ||
637 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
638 | if (EQ (key, *font_property_table[i].key)) | |
639 | return i; | |
ec6fe57c | 640 | return -1; |
c2f5bfd6 KH |
641 | } |
642 | ||
35027d0c KH |
643 | /* Validate the font property. The property key is specified by the |
644 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
645 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 646 | |
c2f5bfd6 | 647 | static Lisp_Object |
971de7fb | 648 | font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 649 | { |
35027d0c | 650 | Lisp_Object validated; |
c2f5bfd6 | 651 | |
1f09f444 KH |
652 | if (NILP (val)) |
653 | return val; | |
35027d0c KH |
654 | if (NILP (prop)) |
655 | prop = *font_property_table[idx].key; | |
656 | else | |
ec6fe57c | 657 | { |
35027d0c KH |
658 | idx = get_font_prop_index (prop); |
659 | if (idx < 0) | |
660 | return val; | |
ec6fe57c | 661 | } |
35027d0c KH |
662 | validated = (font_property_table[idx].validater) (prop, val); |
663 | if (EQ (validated, Qerror)) | |
664 | signal_error ("invalid font property", Fcons (prop, val)); | |
665 | return validated; | |
c2f5bfd6 | 666 | } |
51c01100 | 667 | |
35027d0c KH |
668 | |
669 | /* Store VAL as a value of extra font property PROP in FONT while | |
670 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 671 | |
01dbeb0b | 672 | Lisp_Object |
971de7fb | 673 | font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
9331887d KH |
674 | { |
675 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 676 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
677 | |
678 | if (NILP (slot)) | |
679 | { | |
35027d0c KH |
680 | Lisp_Object prev = Qnil; |
681 | ||
682 | while (CONSP (extra) | |
683 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
684 | prev = extra, extra = XCDR (extra); | |
581e51e8 | 685 | |
ce75f06e | 686 | if (NILP (prev)) |
581e51e8 | 687 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 688 | else |
581e51e8 | 689 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 690 | |
ec6fe57c | 691 | return val; |
9331887d | 692 | } |
9331887d | 693 | XSETCDR (slot, val); |
483670b5 KH |
694 | if (NILP (val)) |
695 | ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra)); | |
ec6fe57c | 696 | return val; |
9331887d KH |
697 | } |
698 | ||
c2f5bfd6 KH |
699 | \f |
700 | /* Font name parser and unparser */ | |
701 | ||
f57e2426 J |
702 | static int parse_matrix (char *); |
703 | static int font_expand_wildcards (Lisp_Object *, int); | |
704 | static int font_parse_name (char *, Lisp_Object); | |
c2f5bfd6 | 705 | |
ec6fe57c | 706 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
707 | enum xlfd_field_index |
708 | { | |
709 | XLFD_FOUNDRY_INDEX, | |
710 | XLFD_FAMILY_INDEX, | |
711 | XLFD_WEIGHT_INDEX, | |
712 | XLFD_SLANT_INDEX, | |
713 | XLFD_SWIDTH_INDEX, | |
714 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
715 | XLFD_PIXEL_INDEX, |
716 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
717 | XLFD_RESX_INDEX, |
718 | XLFD_RESY_INDEX, | |
719 | XLFD_SPACING_INDEX, | |
720 | XLFD_AVGWIDTH_INDEX, | |
721 | XLFD_REGISTRY_INDEX, | |
722 | XLFD_ENCODING_INDEX, | |
723 | XLFD_LAST_INDEX | |
724 | }; | |
725 | ||
ec6fe57c | 726 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
727 | enum xlfd_field_mask |
728 | { | |
729 | XLFD_FOUNDRY_MASK = 0x0001, | |
730 | XLFD_FAMILY_MASK = 0x0002, | |
731 | XLFD_WEIGHT_MASK = 0x0004, | |
732 | XLFD_SLANT_MASK = 0x0008, | |
733 | XLFD_SWIDTH_MASK = 0x0010, | |
734 | XLFD_ADSTYLE_MASK = 0x0020, | |
735 | XLFD_PIXEL_MASK = 0x0040, | |
736 | XLFD_POINT_MASK = 0x0080, | |
737 | XLFD_RESX_MASK = 0x0100, | |
738 | XLFD_RESY_MASK = 0x0200, | |
739 | XLFD_SPACING_MASK = 0x0400, | |
740 | XLFD_AVGWIDTH_MASK = 0x0800, | |
741 | XLFD_REGISTRY_MASK = 0x1000, | |
742 | XLFD_ENCODING_MASK = 0x2000 | |
743 | }; | |
744 | ||
745 | ||
c2f5bfd6 KH |
746 | /* Parse P pointing the pixel/point size field of the form |
747 | `[A B C D]' which specifies a transformation matrix: | |
748 | ||
749 | A B 0 | |
750 | C D 0 | |
751 | 0 0 1 | |
752 | ||
753 | by which all glyphs of the font are transformed. The spec says | |
754 | that scalar value N for the pixel/point size is equivalent to: | |
755 | A = N * resx/resy, B = C = 0, D = N. | |
756 | ||
757 | Return the scalar value N if the form is valid. Otherwise return | |
758 | -1. */ | |
759 | ||
760 | static int | |
971de7fb | 761 | parse_matrix (char *p) |
c2f5bfd6 KH |
762 | { |
763 | double matrix[4]; | |
764 | char *end; | |
765 | int i; | |
766 | ||
767 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
768 | { | |
769 | if (*p == '~') | |
770 | matrix[i] = - strtod (p + 1, &end); | |
771 | else | |
772 | matrix[i] = strtod (p, &end); | |
773 | p = end; | |
774 | } | |
775 | return (i == 4 ? (int) matrix[3] : -1); | |
776 | } | |
777 | ||
4485a28e KH |
778 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
779 | multiple fields to fill in all 14 XLFD fields while restring a | |
780 | field position by its contents. */ | |
781 | ||
ec6fe57c | 782 | static int |
971de7fb | 783 | font_expand_wildcards (Lisp_Object *field, int n) |
4485a28e KH |
784 | { |
785 | /* Copy of FIELD. */ | |
786 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
787 | /* Array of information about where this element can go. Nth | |
788 | element is for Nth element of FIELD. */ | |
789 | struct { | |
790 | /* Minimum possible field. */ | |
791 | int from; | |
792 | /* Maxinum possible field. */ | |
793 | int to; | |
794 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
795 | int mask; | |
796 | } range[XLFD_LAST_INDEX]; | |
797 | int i, j; | |
ec6fe57c | 798 | int range_from, range_to; |
4485a28e KH |
799 | unsigned range_mask; |
800 | ||
801 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
802 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
803 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 804 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 805 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
806 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
807 | ||
808 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
809 | field. The value is shifted to left one bit by one in the | |
810 | following loop. */ | |
811 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
812 | range_mask = (range_mask << 1) | 1; | |
813 | ||
ec6fe57c KH |
814 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
815 | position-based retriction for FIELD[I]. */ | |
816 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
817 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 818 | { |
4485a28e KH |
819 | Lisp_Object val = field[i]; |
820 | ||
821 | tmp[i] = val; | |
822 | if (NILP (val)) | |
823 | { | |
824 | /* Wildcard. */ | |
825 | range[i].from = range_from; | |
826 | range[i].to = range_to; | |
827 | range[i].mask = range_mask; | |
828 | } | |
829 | else | |
830 | { | |
831 | /* The triplet FROM, TO, and MASK is a value-based | |
832 | retriction for FIELD[I]. */ | |
833 | int from, to; | |
834 | unsigned mask; | |
835 | ||
836 | if (INTEGERP (val)) | |
837 | { | |
838 | int numeric = XINT (val); | |
839 | ||
ef18374f KH |
840 | if (i + 1 == n) |
841 | from = to = XLFD_ENCODING_INDEX, | |
842 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
843 | else if (numeric == 0) |
844 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
845 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
846 | else if (numeric <= 48) |
847 | from = to = XLFD_PIXEL_INDEX, | |
848 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 849 | else |
ec6fe57c | 850 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
851 | mask = XLFD_LARGENUM_MASK; |
852 | } | |
35027d0c | 853 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
854 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
855 | mask = XLFD_NULL_MASK; | |
856 | else if (i == 0) | |
857 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
858 | else if (i + 1 == n) | |
859 | { | |
860 | Lisp_Object name = SYMBOL_NAME (val); | |
861 | ||
862 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
863 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
864 | mask = XLFD_REGENC_MASK; | |
865 | else | |
866 | from = to = XLFD_ENCODING_INDEX, | |
867 | mask = XLFD_ENCODING_MASK; | |
868 | } | |
ef18374f KH |
869 | else if (range_from <= XLFD_WEIGHT_INDEX |
870 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 871 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 872 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
873 | else if (range_from <= XLFD_SLANT_INDEX |
874 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 875 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 876 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
877 | else if (range_from <= XLFD_SWIDTH_INDEX |
878 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 879 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
880 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
881 | else | |
882 | { | |
ec6fe57c | 883 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
884 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
885 | else | |
886 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
887 | mask = XLFD_SYMBOL_MASK; | |
888 | } | |
889 | ||
890 | /* Merge position-based and value-based restrictions. */ | |
891 | mask &= range_mask; | |
892 | while (from < range_from) | |
893 | mask &= ~(1 << from++); | |
894 | while (from < 14 && ! (mask & (1 << from))) | |
895 | from++; | |
896 | while (to > range_to) | |
897 | mask &= ~(1 << to--); | |
898 | while (to >= 0 && ! (mask & (1 << to))) | |
899 | to--; | |
900 | if (from > to) | |
901 | return -1; | |
902 | range[i].from = from; | |
903 | range[i].to = to; | |
904 | range[i].mask = mask; | |
905 | ||
906 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
907 | { |
908 | /* The range is narrowed by value-based restrictions. | |
909 | Reflect it to the other fields. */ | |
910 | ||
911 | /* Following fields should be after FROM. */ | |
912 | range_from = from; | |
913 | /* Preceding fields should be before TO. */ | |
914 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
915 | { | |
916 | /* Check FROM for non-wildcard field. */ | |
917 | if (! NILP (tmp[j]) && range[j].from < from) | |
918 | { | |
919 | while (range[j].from < from) | |
920 | range[j].mask &= ~(1 << range[j].from++); | |
921 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
922 | from++; | |
923 | range[j].from = from; | |
924 | } | |
925 | else | |
926 | from = range[j].from; | |
927 | if (range[j].to > to) | |
928 | { | |
929 | while (range[j].to > to) | |
930 | range[j].mask &= ~(1 << range[j].to--); | |
931 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
932 | to--; | |
933 | range[j].to = to; | |
934 | } | |
935 | else | |
936 | to = range[j].to; | |
937 | if (from > to) | |
938 | return -1; | |
939 | } | |
940 | } | |
4485a28e KH |
941 | } |
942 | } | |
943 | ||
944 | /* Decide all fileds from restrictions in RANGE. */ | |
945 | for (i = j = 0; i < n ; i++) | |
946 | { | |
947 | if (j < range[i].from) | |
948 | { | |
949 | if (i == 0 || ! NILP (tmp[i - 1])) | |
950 | /* None of TMP[X] corresponds to Jth field. */ | |
951 | return -1; | |
952 | for (; j < range[i].from; j++) | |
953 | field[j] = Qnil; | |
954 | } | |
955 | field[j++] = tmp[i]; | |
956 | } | |
957 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
958 | return -1; | |
959 | for (; j < XLFD_LAST_INDEX; j++) | |
960 | field[j] = Qnil; | |
961 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
962 | field[XLFD_ENCODING_INDEX] | |
963 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
964 | return 0; | |
965 | } | |
966 | ||
43a1d19b | 967 | |
ef18374f | 968 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
969 | (font-spec or font-entity). Size property of FONT is set as |
970 | follows: | |
971 | specified XLFD fields FONT property | |
972 | --------------------- ------------- | |
973 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
974 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
975 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
976 | ||
ec6fe57c | 977 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 978 | |
ec6fe57c KH |
979 | FONT is usually a font-spec, but when this function is called from |
980 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 981 | a fully specified XLFD. */ |
c2f5bfd6 KH |
982 | |
983 | int | |
971de7fb | 984 | font_parse_xlfd (char *name, Lisp_Object font) |
c2f5bfd6 KH |
985 | { |
986 | int len = strlen (name); | |
35027d0c | 987 | int i, j, n; |
cf23b845 | 988 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 989 | Lisp_Object val; |
4485a28e | 990 | char *p; |
c2f5bfd6 | 991 | |
e3928081 | 992 | if (len > 255 || !len) |
c2f5bfd6 KH |
993 | /* Maximum XLFD name length is 255. */ |
994 | return -1; | |
ec6fe57c | 995 | /* Accept "*-.." as a fully specified XLFD. */ |
e3928081 | 996 | if (name[0] == '*' && (len == 1 || name[1] == '-')) |
ec6fe57c KH |
997 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; |
998 | else | |
999 | i = 0; | |
1000 | for (p = name + i; *p; p++) | |
35027d0c KH |
1001 | if (*p == '-') |
1002 | { | |
1003 | f[i++] = p + 1; | |
1004 | if (i == XLFD_LAST_INDEX) | |
1005 | break; | |
1006 | } | |
1007 | f[i] = name + len; | |
c2f5bfd6 | 1008 | |
2f286d4f KH |
1009 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1010 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1011 | |
ec6fe57c | 1012 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1013 | { |
35027d0c | 1014 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1015 | int pixel_size; |
1016 | ||
2f286d4f KH |
1017 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1018 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1019 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1020 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1021 | { |
2f286d4f | 1022 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1023 | if (! NILP (val)) |
4485a28e | 1024 | { |
2f286d4f | 1025 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1026 | return -1; |
1027 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1028 | } |
1029 | } | |
2f286d4f | 1030 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1031 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1032 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1033 | else | |
1034 | ASET (font, FONT_REGISTRY_INDEX, | |
1035 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1036 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1037 | 1)); | |
ec6fe57c KH |
1038 | p = f[XLFD_PIXEL_INDEX]; |
1039 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1040 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1041 | else |
1042 | { | |
35027d0c KH |
1043 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1044 | if (INTEGERP (val)) | |
ec6fe57c | 1045 | ASET (font, FONT_SIZE_INDEX, val); |
b57d9029 KH |
1046 | else if (FONT_ENTITY_P (font)) |
1047 | return -1; | |
ec6fe57c KH |
1048 | else |
1049 | { | |
1050 | double point_size = -1; | |
1051 | ||
d0ab1ebe | 1052 | font_assert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1053 | p = f[XLFD_POINT_INDEX]; |
1054 | if (*p == '[') | |
1055 | point_size = parse_matrix (p); | |
1056 | else if (isdigit (*p)) | |
1057 | point_size = atoi (p), point_size /= 10; | |
1058 | if (point_size >= 0) | |
1059 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1060 | } |
1061 | } | |
ec6fe57c | 1062 | |
087048cd KH |
1063 | val = INTERN_FIELD (XLFD_RESY_INDEX); |
1064 | if (! NILP (val) && ! INTEGERP (val)) | |
1065 | return -1; | |
1066 | ASET (font, FONT_DPI_INDEX, val); | |
35027d0c KH |
1067 | val = INTERN_FIELD (XLFD_SPACING_INDEX); |
1068 | if (! NILP (val)) | |
ec6fe57c | 1069 | { |
35027d0c KH |
1070 | val = font_prop_validate_spacing (QCspacing, val); |
1071 | if (! INTEGERP (val)) | |
1072 | return -1; | |
1073 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1074 | } |
ec6fe57c KH |
1075 | p = f[XLFD_AVGWIDTH_INDEX]; |
1076 | if (*p == '~') | |
1077 | p++; | |
087048cd KH |
1078 | val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0); |
1079 | if (! NILP (val) && ! INTEGERP (val)) | |
1080 | return -1; | |
1081 | ASET (font, FONT_AVGWIDTH_INDEX, val); | |
4485a28e KH |
1082 | } |
1083 | else | |
c2f5bfd6 | 1084 | { |
4485a28e | 1085 | int wild_card_found = 0; |
ec6fe57c | 1086 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1087 | |
35027d0c KH |
1088 | if (FONT_ENTITY_P (font)) |
1089 | return -1; | |
ec6fe57c | 1090 | for (j = 0; j < i; j++) |
4485a28e | 1091 | { |
ec6fe57c | 1092 | if (*f[j] == '*') |
4485a28e | 1093 | { |
ec6fe57c KH |
1094 | if (f[j][1] && f[j][1] != '-') |
1095 | return -1; | |
1096 | prop[j] = Qnil; | |
1097 | wild_card_found = 1; | |
1098 | } | |
ec6fe57c | 1099 | else if (j + 1 < i) |
35027d0c | 1100 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1101 | else |
2f286d4f | 1102 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1103 | } |
1104 | if (! wild_card_found) | |
c2f5bfd6 | 1105 | return -1; |
ec6fe57c | 1106 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1107 | return -1; |
ec6fe57c | 1108 | |
35027d0c KH |
1109 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1110 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1111 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1112 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1113 | if (! NILP (prop[i])) |
35027d0c KH |
1114 | { |
1115 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1116 | return -1; | |
1117 | ASET (font, j, make_number (n)); | |
1118 | } | |
1119 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1120 | val = prop[XLFD_REGISTRY_INDEX]; |
1121 | if (NILP (val)) | |
c2f5bfd6 | 1122 | { |
ec6fe57c KH |
1123 | val = prop[XLFD_ENCODING_INDEX]; |
1124 | if (! NILP (val)) | |
35027d0c | 1125 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1126 | } |
ec6fe57c | 1127 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1128 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1129 | else |
35027d0c KH |
1130 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1131 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1132 | if (! NILP (val)) |
35027d0c | 1133 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1134 | |
1135 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1136 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1137 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1138 | { |
ec6fe57c | 1139 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1140 | |
ec6fe57c KH |
1141 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1142 | } | |
c2f5bfd6 | 1143 | |
35027d0c KH |
1144 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1145 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1146 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1147 | { | |
1148 | val = font_prop_validate_spacing (QCspacing, | |
1149 | prop[XLFD_SPACING_INDEX]); | |
1150 | if (! INTEGERP (val)) | |
1151 | return -1; | |
1152 | ASET (font, FONT_SPACING_INDEX, val); | |
1153 | } | |
ec6fe57c | 1154 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1155 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1156 | } |
1157 | ||
ec6fe57c | 1158 | return 0; |
c2f5bfd6 KH |
1159 | } |
1160 | ||
1161 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1162 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1163 | 0, use PIXEL_SIZE instead. */ | |
1164 | ||
1165 | int | |
971de7fb | 1166 | font_unparse_xlfd (Lisp_Object font, int pixel_size, char *name, int nbytes) |
c2f5bfd6 | 1167 | { |
ec6fe57c | 1168 | char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 KH |
1169 | Lisp_Object val; |
1170 | int i, j, len = 0; | |
1171 | ||
d0ab1ebe | 1172 | font_assert (FONTP (font)); |
c2f5bfd6 KH |
1173 | |
1174 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1175 | i++, j++) | |
1176 | { | |
1177 | if (i == FONT_ADSTYLE_INDEX) | |
1178 | j = XLFD_ADSTYLE_INDEX; | |
1179 | else if (i == FONT_REGISTRY_INDEX) | |
1180 | j = XLFD_REGISTRY_INDEX; | |
1181 | val = AREF (font, i); | |
1182 | if (NILP (val)) | |
1bb1d99b KH |
1183 | { |
1184 | if (j == XLFD_REGISTRY_INDEX) | |
1185 | f[j] = "*-*", len += 4; | |
1186 | else | |
1187 | f[j] = "*", len += 2; | |
1188 | } | |
c2f5bfd6 KH |
1189 | else |
1190 | { | |
1191 | if (SYMBOLP (val)) | |
1192 | val = SYMBOL_NAME (val); | |
1bb1d99b KH |
1193 | if (j == XLFD_REGISTRY_INDEX |
1194 | && ! strchr ((char *) SDATA (val), '-')) | |
1195 | { | |
1196 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1197 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1198 | { | |
1199 | f[j] = alloca (SBYTES (val) + 3); | |
1200 | sprintf (f[j], "%s-*", SDATA (val)); | |
1201 | len += SBYTES (val) + 3; | |
1202 | } | |
1203 | else | |
1204 | { | |
1205 | f[j] = alloca (SBYTES (val) + 4); | |
1206 | sprintf (f[j], "%s*-*", SDATA (val)); | |
1207 | len += SBYTES (val) + 4; | |
1208 | } | |
1209 | } | |
1210 | else | |
1211 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
c2f5bfd6 KH |
1212 | } |
1213 | } | |
1214 | ||
1215 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1216 | i++, j++) | |
1217 | { | |
35027d0c | 1218 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 KH |
1219 | if (NILP (val)) |
1220 | f[j] = "*", len += 2; | |
1221 | else | |
1222 | { | |
35027d0c | 1223 | val = SYMBOL_NAME (val); |
c2f5bfd6 KH |
1224 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; |
1225 | } | |
1226 | } | |
1227 | ||
1228 | val = AREF (font, FONT_SIZE_INDEX); | |
d0ab1ebe | 1229 | font_assert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1230 | if (INTEGERP (val)) |
1231 | { | |
35027d0c | 1232 | i = XINT (val); |
81aefea4 SM |
1233 | if (i <= 0) |
1234 | i = pixel_size; | |
c2f5bfd6 | 1235 | if (i > 0) |
81aefea4 SM |
1236 | { |
1237 | f[XLFD_PIXEL_INDEX] = alloca (22); | |
1238 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", i) + 1; | |
1239 | } | |
1240 | else | |
1241 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; | |
c2f5bfd6 KH |
1242 | } |
1243 | else if (FLOATP (val)) | |
1244 | { | |
35027d0c | 1245 | i = XFLOAT_DATA (val) * 10; |
ec6fe57c | 1246 | f[XLFD_PIXEL_INDEX] = alloca (12); |
ec6fe57c | 1247 | len += sprintf (f[XLFD_PIXEL_INDEX], "*-%d", i) + 1; |
c2f5bfd6 KH |
1248 | } |
1249 | else | |
ec6fe57c KH |
1250 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1251 | ||
35027d0c | 1252 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1253 | { |
35027d0c KH |
1254 | i = XINT (AREF (font, FONT_DPI_INDEX)); |
1255 | f[XLFD_RESX_INDEX] = alloca (22); | |
1256 | len += sprintf (f[XLFD_RESX_INDEX], | |
1257 | "%d-%d", i, i) + 1; | |
c2f5bfd6 KH |
1258 | } |
1259 | else | |
35027d0c KH |
1260 | f[XLFD_RESX_INDEX] = "*-*", len += 4; |
1261 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
ec6fe57c | 1262 | { |
35027d0c | 1263 | int spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1264 | |
35027d0c KH |
1265 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1266 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1267 | : spacing <= FONT_SPACING_MONO ? "m" | |
1268 | : "c"); | |
1269 | len += 2; | |
ec6fe57c | 1270 | } |
35027d0c KH |
1271 | else |
1272 | f[XLFD_SPACING_INDEX] = "*", len += 2; | |
1273 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1274 | { | |
1275 | f[XLFD_AVGWIDTH_INDEX] = alloca (11); | |
c56c14a1 AR |
1276 | len += sprintf (f[XLFD_AVGWIDTH_INDEX], "%ld", |
1277 | (long) XINT (AREF (font, FONT_AVGWIDTH_INDEX))) + 1; | |
35027d0c KH |
1278 | } |
1279 | else | |
1280 | f[XLFD_AVGWIDTH_INDEX] = "*", len += 2; | |
ec6fe57c | 1281 | len++; /* for terminating '\0'. */ |
c2f5bfd6 KH |
1282 | if (len >= nbytes) |
1283 | return -1; | |
35027d0c | 1284 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1285 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1286 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1287 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1288 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1289 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1290 | f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1291 | } |
1292 | ||
8c102d5b CY |
1293 | /* Parse NAME (null terminated) and store information in FONT |
1294 | (font-spec or font-entity). NAME is supplied in either the | |
1295 | Fontconfig or GTK font name format. If NAME is successfully | |
1296 | parsed, return 0. Otherwise return -1. | |
1297 | ||
1298 | The fontconfig format is | |
1299 | ||
1300 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1301 | ||
1302 | The GTK format is | |
1303 | ||
1304 | FAMILY [PROPS...] [SIZE] | |
1305 | ||
1306 | This function tries to guess which format it is. */ | |
ef18374f KH |
1307 | |
1308 | int | |
971de7fb | 1309 | font_parse_fcname (char *name, Lisp_Object font) |
ef18374f | 1310 | { |
8c102d5b CY |
1311 | char *p, *q; |
1312 | char *size_beg = NULL, *size_end = NULL; | |
1313 | char *props_beg = NULL, *family_end = NULL; | |
9331887d | 1314 | int len = strlen (name); |
ef18374f | 1315 | |
ec6fe57c KH |
1316 | if (len == 0) |
1317 | return -1; | |
8c102d5b CY |
1318 | |
1319 | for (p = name; *p; p++) | |
ef18374f | 1320 | { |
8c102d5b CY |
1321 | if (*p == '\\' && p[1]) |
1322 | p++; | |
1323 | else if (*p == ':') | |
ef18374f | 1324 | { |
59facb78 | 1325 | props_beg = family_end = p; |
8c102d5b CY |
1326 | break; |
1327 | } | |
1328 | else if (*p == '-') | |
1329 | { | |
b1868a1a | 1330 | int decimal = 0, size_found = 1; |
8c102d5b | 1331 | for (q = p + 1; *q && *q != ':'; q++) |
b1868a1a | 1332 | if (! isdigit(*q)) |
8c102d5b | 1333 | { |
b1868a1a CY |
1334 | if (*q != '.' || decimal) |
1335 | { | |
1336 | size_found = 0; | |
1337 | break; | |
1338 | } | |
1339 | decimal = 1; | |
8c102d5b CY |
1340 | } |
1341 | if (size_found) | |
1342 | { | |
1343 | family_end = p; | |
1344 | size_beg = p + 1; | |
1345 | size_end = q; | |
1346 | break; | |
1347 | } | |
ef18374f | 1348 | } |
ef18374f | 1349 | } |
9331887d | 1350 | |
8c102d5b CY |
1351 | if (family_end) |
1352 | { | |
637fa988 JD |
1353 | Lisp_Object extra_props = Qnil; |
1354 | ||
8c102d5b CY |
1355 | /* A fontconfig name with size and/or property data. */ |
1356 | if (family_end > name) | |
1357 | { | |
1358 | Lisp_Object family; | |
1359 | family = font_intern_prop (name, family_end - name, 1); | |
1360 | ASET (font, FONT_FAMILY_INDEX, family); | |
1361 | } | |
1362 | if (size_beg) | |
1363 | { | |
1364 | double point_size = strtod (size_beg, &size_end); | |
1365 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1366 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1367 | props_beg = size_end; |
8c102d5b CY |
1368 | } |
1369 | if (props_beg) | |
1370 | { | |
d26424c5 | 1371 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1372 | Lisp_Object val; |
8c102d5b | 1373 | |
59facb78 | 1374 | for (p = props_beg; *p; p = q) |
8c102d5b | 1375 | { |
8c102d5b | 1376 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1377 | if (*q != '=') |
1378 | { | |
1379 | /* Must be an enumerated value. */ | |
59facb78 CY |
1380 | int word_len; |
1381 | p = p + 1; | |
1382 | word_len = q - p; | |
8c102d5b | 1383 | val = font_intern_prop (p, q - p, 1); |
9277a69d CY |
1384 | |
1385 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1386 | ||
8c102d5b CY |
1387 | if (PROP_MATCH ("light", 5) |
1388 | || PROP_MATCH ("medium", 6) | |
1389 | || PROP_MATCH ("demibold", 8) | |
1390 | || PROP_MATCH ("bold", 4) | |
1391 | || PROP_MATCH ("black", 5)) | |
1392 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); | |
1393 | else if (PROP_MATCH ("roman", 5) | |
1394 | || PROP_MATCH ("italic", 6) | |
1395 | || PROP_MATCH ("oblique", 7)) | |
1396 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); | |
1397 | else if (PROP_MATCH ("charcell", 8)) | |
1398 | ASET (font, FONT_SPACING_INDEX, | |
1399 | make_number (FONT_SPACING_CHARCELL)); | |
1400 | else if (PROP_MATCH ("mono", 4)) | |
1401 | ASET (font, FONT_SPACING_INDEX, | |
1402 | make_number (FONT_SPACING_MONO)); | |
1403 | else if (PROP_MATCH ("proportional", 12)) | |
1404 | ASET (font, FONT_SPACING_INDEX, | |
1405 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1406 | #undef PROP_MATCH |
8c102d5b | 1407 | } |
59facb78 | 1408 | else |
8c102d5b | 1409 | { |
59facb78 | 1410 | /* KEY=VAL pairs */ |
8c102d5b | 1411 | Lisp_Object key; |
59facb78 | 1412 | int prop; |
51c01100 | 1413 | |
59facb78 | 1414 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1415 | prop = FONT_SIZE_INDEX; |
1416 | else | |
1417 | { | |
1418 | key = font_intern_prop (p, q - p, 1); | |
1419 | prop = get_font_prop_index (key); | |
1420 | } | |
77989187 | 1421 | |
8c102d5b CY |
1422 | p = q + 1; |
1423 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1424 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1425 | |
d26424c5 KH |
1426 | if (prop >= FONT_FOUNDRY_INDEX |
1427 | && prop < FONT_EXTRA_INDEX) | |
637fa988 | 1428 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); |
ce75f06e | 1429 | else |
637fa988 JD |
1430 | { |
1431 | extra_props = nconc2 (extra_props, | |
1432 | Fcons (Fcons (key, val), Qnil)); | |
1433 | } | |
8c102d5b | 1434 | } |
d26424c5 | 1435 | p = q; |
8c102d5b | 1436 | } |
8c102d5b | 1437 | } |
637fa988 JD |
1438 | |
1439 | if (! NILP (extra_props)) | |
1440 | { | |
1441 | struct font_driver_list *driver_list = font_driver_list; | |
1442 | for ( ; driver_list; driver_list = driver_list->next) | |
1443 | if (driver_list->driver->filter_properties) | |
1444 | (*driver_list->driver->filter_properties) (font, extra_props); | |
1445 | } | |
ce75f06e | 1446 | |
8c102d5b CY |
1447 | } |
1448 | else | |
ef18374f | 1449 | { |
8c102d5b CY |
1450 | /* Either a fontconfig-style name with no size and property |
1451 | data, or a GTK-style name. */ | |
1452 | Lisp_Object prop; | |
1453 | int word_len, prop_found = 0; | |
ef18374f | 1454 | |
8c102d5b | 1455 | for (p = name; *p; p = *q ? q + 1 : q) |
ef18374f | 1456 | { |
8c102d5b | 1457 | if (isdigit (*p)) |
9331887d | 1458 | { |
8c102d5b | 1459 | int size_found = 1; |
7181ea6a | 1460 | |
8c102d5b | 1461 | for (q = p + 1; *q && *q != ' '; q++) |
32a679fd | 1462 | if (! isdigit (*q) && *q != '.') |
8c102d5b CY |
1463 | { |
1464 | size_found = 0; | |
1465 | break; | |
1466 | } | |
1467 | if (size_found) | |
1468 | { | |
1469 | double point_size = strtod (p, &q); | |
1470 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1471 | continue; | |
1472 | } | |
027a33c0 | 1473 | } |
8c102d5b CY |
1474 | |
1475 | for (q = p + 1; *q && *q != ' '; q++) | |
1476 | if (*q == '\\' && q[1]) | |
1477 | q++; | |
1478 | word_len = q - p; | |
1479 | ||
1480 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1481 | ||
1482 | if (PROP_MATCH ("Ultra-Light", 11)) | |
9331887d | 1483 | { |
8c102d5b CY |
1484 | prop_found = 1; |
1485 | prop = font_intern_prop ("ultra-light", 11, 1); | |
1486 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1487 | } |
8c102d5b | 1488 | else if (PROP_MATCH ("Light", 5)) |
9331887d | 1489 | { |
8c102d5b CY |
1490 | prop_found = 1; |
1491 | prop = font_intern_prop ("light", 5, 1); | |
1492 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1493 | } |
fe69a722 CY |
1494 | else if (PROP_MATCH ("Book", 4)) |
1495 | { | |
1496 | prop_found = 1; | |
1497 | prop = font_intern_prop ("book", 4, 1); | |
1498 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1499 | } | |
4ed28cf4 CY |
1500 | else if (PROP_MATCH ("Medium", 6)) |
1501 | { | |
1502 | prop_found = 1; | |
1503 | prop = font_intern_prop ("medium", 6, 1); | |
1504 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1505 | } | |
8c102d5b | 1506 | else if (PROP_MATCH ("Semi-Bold", 9)) |
9331887d | 1507 | { |
8c102d5b CY |
1508 | prop_found = 1; |
1509 | prop = font_intern_prop ("semi-bold", 9, 1); | |
1510 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1511 | } | |
1512 | else if (PROP_MATCH ("Bold", 4)) | |
1513 | { | |
1514 | prop_found = 1; | |
1515 | prop = font_intern_prop ("bold", 4, 1); | |
1516 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
ef18374f | 1517 | } |
8c102d5b CY |
1518 | else if (PROP_MATCH ("Italic", 6)) |
1519 | { | |
1520 | prop_found = 1; | |
1521 | prop = font_intern_prop ("italic", 4, 1); | |
1522 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1523 | } | |
1524 | else if (PROP_MATCH ("Oblique", 7)) | |
1525 | { | |
1526 | prop_found = 1; | |
1527 | prop = font_intern_prop ("oblique", 7, 1); | |
1528 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1529 | } | |
fe69a722 CY |
1530 | else if (PROP_MATCH ("Semi-Condensed", 14)) |
1531 | { | |
1532 | prop_found = 1; | |
1533 | prop = font_intern_prop ("semi-condensed", 14, 1); | |
1534 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, prop); | |
1535 | } | |
1536 | else if (PROP_MATCH ("Condensed", 9)) | |
1537 | { | |
1538 | prop_found = 1; | |
1539 | prop = font_intern_prop ("condensed", 9, 1); | |
1540 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, prop); | |
1541 | } | |
8c102d5b CY |
1542 | else { |
1543 | if (prop_found) | |
1544 | return -1; /* Unknown property in GTK-style font name. */ | |
1545 | family_end = q; | |
1546 | } | |
ef18374f | 1547 | } |
8c102d5b | 1548 | #undef PROP_MATCH |
9ba6fd41 | 1549 | |
8c102d5b CY |
1550 | if (family_end) |
1551 | { | |
1552 | Lisp_Object family; | |
1553 | family = font_intern_prop (name, family_end - name, 1); | |
1554 | ASET (font, FONT_FAMILY_INDEX, family); | |
1555 | } | |
1556 | } | |
17ab8f5d | 1557 | |
9331887d | 1558 | return 0; |
ef18374f KH |
1559 | } |
1560 | ||
1561 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1562 | NAME (NBYTES length), and return the name length. If | |
1563 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1564 | ||
1565 | int | |
971de7fb | 1566 | font_unparse_fcname (Lisp_Object font, int pixel_size, char *name, int nbytes) |
ef18374f | 1567 | { |
b1868a1a | 1568 | Lisp_Object family, foundry; |
35027d0c | 1569 | Lisp_Object tail, val; |
ec6fe57c | 1570 | int point_size; |
ec6fe57c | 1571 | int i, len = 1; |
ef18374f | 1572 | char *p; |
a9262bb8 | 1573 | Lisp_Object styles[3]; |
417a1b10 | 1574 | char *style_names[3] = { "weight", "slant", "width" }; |
35027d0c | 1575 | char work[256]; |
ef18374f | 1576 | |
b1868a1a CY |
1577 | family = AREF (font, FONT_FAMILY_INDEX); |
1578 | if (! NILP (family)) | |
1579 | { | |
1580 | if (SYMBOLP (family)) | |
1581 | { | |
1582 | family = SYMBOL_NAME (family); | |
1583 | len += SBYTES (family); | |
1584 | } | |
1585 | else | |
1586 | family = Qnil; | |
1587 | } | |
ec6fe57c KH |
1588 | |
1589 | val = AREF (font, FONT_SIZE_INDEX); | |
1590 | if (INTEGERP (val)) | |
ef18374f | 1591 | { |
ec6fe57c KH |
1592 | if (XINT (val) != 0) |
1593 | pixel_size = XINT (val); | |
1594 | point_size = -1; | |
1595 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1596 | } |
ec6fe57c | 1597 | else if (FLOATP (val)) |
ef18374f | 1598 | { |
ec6fe57c KH |
1599 | pixel_size = -1; |
1600 | point_size = (int) XFLOAT_DATA (val); | |
1601 | len += 11; /* for "-NUM" */ | |
ef18374f | 1602 | } |
ec6fe57c | 1603 | |
b1868a1a CY |
1604 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1605 | if (! NILP (foundry)) | |
1606 | { | |
1607 | if (SYMBOLP (foundry)) | |
1608 | { | |
1609 | foundry = SYMBOL_NAME (foundry); | |
1610 | len += 9 + SBYTES (foundry); /* ":foundry=NAME" */ | |
1611 | } | |
1612 | else | |
1613 | foundry = Qnil; | |
1614 | } | |
ec6fe57c | 1615 | |
35027d0c | 1616 | for (i = 0; i < 3; i++) |
a9262bb8 | 1617 | { |
35027d0c KH |
1618 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
1619 | if (! NILP (styles[i])) | |
1620 | len += sprintf (work, ":%s=%s", style_names[i], | |
1621 | SDATA (SYMBOL_NAME (styles[i]))); | |
ec6fe57c | 1622 | } |
35027d0c KH |
1623 | |
1624 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c56c14a1 | 1625 | len += sprintf (work, ":dpi=%ld", (long)XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c KH |
1626 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
1627 | len += strlen (":spacing=100"); | |
1628 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1629 | len += strlen (":scalable=false"); /* or ":scalable=true" */ | |
1630 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
ec6fe57c | 1631 | { |
35027d0c KH |
1632 | Lisp_Object key = XCAR (XCAR (tail)), val = XCDR (XCAR (tail)); |
1633 | ||
1634 | len += SBYTES (SYMBOL_NAME (key)) + 1; /* for :KEY= */ | |
1635 | if (STRINGP (val)) | |
1636 | len += SBYTES (val); | |
1637 | else if (INTEGERP (val)) | |
c56c14a1 | 1638 | len += sprintf (work, "%ld", (long) XINT (val)); |
35027d0c KH |
1639 | else if (SYMBOLP (val)) |
1640 | len += (NILP (val) ? 5 : 4); /* for "false" or "true" */ | |
ec6fe57c KH |
1641 | } |
1642 | ||
ef18374f KH |
1643 | if (len > nbytes) |
1644 | return -1; | |
1645 | p = name; | |
b1868a1a CY |
1646 | if (! NILP (family)) |
1647 | p += sprintf (p, "%s", SDATA (family)); | |
ec6fe57c KH |
1648 | if (point_size > 0) |
1649 | { | |
1650 | if (p == name) | |
1651 | p += sprintf (p, "%d", point_size); | |
1652 | else | |
1653 | p += sprintf (p, "-%d", point_size); | |
1654 | } | |
ef18374f KH |
1655 | else if (pixel_size > 0) |
1656 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
35027d0c | 1657 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
a9262bb8 KH |
1658 | p += sprintf (p, ":foundry=%s", |
1659 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1660 | for (i = 0; i < 3; i++) | |
35027d0c | 1661 | if (! NILP (styles[i])) |
a9262bb8 | 1662 | p += sprintf (p, ":%s=%s", style_names[i], |
35027d0c KH |
1663 | SDATA (SYMBOL_NAME (styles[i]))); |
1664 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c56c14a1 | 1665 | p += sprintf (p, ":dpi=%ld", (long) XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c | 1666 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
c56c14a1 AR |
1667 | p += sprintf (p, ":spacing=%ld", |
1668 | (long) XINT (AREF (font, FONT_SPACING_INDEX))); | |
35027d0c KH |
1669 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
1670 | { | |
1671 | if (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0) | |
1672 | p += sprintf (p, ":scalable=true"); | |
1673 | else | |
1674 | p += sprintf (p, ":scalable=false"); | |
1675 | } | |
ef18374f KH |
1676 | return (p - name); |
1677 | } | |
1678 | ||
b1868a1a CY |
1679 | /* Store GTK-style font name of FONT (font-spec or font-entity) in |
1680 | NAME (NBYTES length), and return the name length. F is the frame | |
1681 | on which the font is displayed; it is used to calculate the point | |
1682 | size. */ | |
1683 | ||
1684 | int | |
971de7fb | 1685 | font_unparse_gtkname (Lisp_Object font, struct frame *f, char *name, int nbytes) |
b1868a1a CY |
1686 | { |
1687 | char *p; | |
1688 | int len = 1; | |
1689 | Lisp_Object family, weight, slant, size; | |
1690 | int point_size = -1; | |
1691 | ||
1692 | family = AREF (font, FONT_FAMILY_INDEX); | |
1693 | if (! NILP (family)) | |
1694 | { | |
1695 | if (! SYMBOLP (family)) | |
1696 | return -1; | |
1697 | family = SYMBOL_NAME (family); | |
1698 | len += SBYTES (family); | |
1699 | } | |
1700 | ||
1701 | weight = font_style_symbolic (font, FONT_WEIGHT_INDEX, 0); | |
93eed26b | 1702 | if (EQ (weight, Qnormal)) |
b1868a1a CY |
1703 | weight = Qnil; |
1704 | else if (! NILP (weight)) | |
1705 | { | |
1706 | weight = SYMBOL_NAME (weight); | |
1707 | len += SBYTES (weight); | |
1708 | } | |
1709 | ||
1710 | slant = font_style_symbolic (font, FONT_SLANT_INDEX, 0); | |
93eed26b | 1711 | if (EQ (slant, Qnormal)) |
b1868a1a CY |
1712 | slant = Qnil; |
1713 | else if (! NILP (slant)) | |
1714 | { | |
1715 | slant = SYMBOL_NAME (slant); | |
1716 | len += SBYTES (slant); | |
1717 | } | |
1718 | ||
1719 | size = AREF (font, FONT_SIZE_INDEX); | |
1720 | /* Convert pixel size to point size. */ | |
1721 | if (INTEGERP (size)) | |
1722 | { | |
1723 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
1724 | int dpi = 75; | |
1725 | if (INTEGERP (font_dpi)) | |
1726 | dpi = XINT (font_dpi); | |
1727 | else if (f) | |
1728 | dpi = f->resy; | |
1729 | point_size = PIXEL_TO_POINT (XINT (size), dpi); | |
1730 | len += 11; | |
1731 | } | |
1732 | else if (FLOATP (size)) | |
1733 | { | |
1734 | point_size = (int) XFLOAT_DATA (size); | |
1735 | len += 11; | |
1736 | } | |
1737 | ||
1738 | if (len > nbytes) | |
1739 | return -1; | |
1740 | ||
1741 | p = name + sprintf (name, "%s", SDATA (family)); | |
1742 | ||
1743 | if (! NILP (weight)) | |
1744 | { | |
1745 | char *q = p; | |
1746 | p += sprintf (p, " %s", SDATA (weight)); | |
1747 | q[1] = toupper (q[1]); | |
1748 | } | |
1749 | ||
1750 | if (! NILP (slant)) | |
1751 | { | |
1752 | char *q = p; | |
1753 | p += sprintf (p, " %s", SDATA (slant)); | |
1754 | q[1] = toupper (q[1]); | |
1755 | } | |
1756 | ||
1757 | if (point_size > 0) | |
1758 | p += sprintf (p, " %d", point_size); | |
1759 | ||
1760 | return (p - name); | |
1761 | } | |
1762 | ||
ef18374f KH |
1763 | /* Parse NAME (null terminated) and store information in FONT |
1764 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1765 | 0. Otherwise return -1. */ |
ef18374f KH |
1766 | |
1767 | static int | |
971de7fb | 1768 | font_parse_name (char *name, Lisp_Object font) |
ef18374f | 1769 | { |
8966b757 | 1770 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
e950d6f1 | 1771 | return font_parse_xlfd (name, font); |
ec6fe57c | 1772 | return font_parse_fcname (name, font); |
ef18374f KH |
1773 | } |
1774 | ||
35027d0c KH |
1775 | |
1776 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1777 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1778 | part. */ | |
45eb10fb | 1779 | |
c2f5bfd6 | 1780 | void |
971de7fb | 1781 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1782 | { |
35027d0c KH |
1783 | int len; |
1784 | char *p0, *p1; | |
1785 | ||
d0ab1ebe KH |
1786 | if (! NILP (family) |
1787 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1788 | { |
35027d0c KH |
1789 | CHECK_STRING (family); |
1790 | len = SBYTES (family); | |
1791 | p0 = (char *) SDATA (family); | |
8966b757 | 1792 | p1 = strchr (p0, '-'); |
35027d0c | 1793 | if (p1) |
c2f5bfd6 | 1794 | { |
9903d1e6 | 1795 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1796 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1797 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1798 | p1++; |
1799 | len -= p1 - p0; | |
2f286d4f | 1800 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1801 | } |
35027d0c KH |
1802 | else |
1803 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1804 | } |
35027d0c | 1805 | if (! NILP (registry)) |
c2f5bfd6 | 1806 | { |
35027d0c KH |
1807 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1808 | CHECK_STRING (registry); | |
1809 | len = SBYTES (registry); | |
1810 | p0 = (char *) SDATA (registry); | |
8966b757 | 1811 | p1 = strchr (p0, '-'); |
35027d0c | 1812 | if (! p1) |
c2f5bfd6 | 1813 | { |
35027d0c KH |
1814 | if (SDATA (registry)[len - 1] == '*') |
1815 | registry = concat2 (registry, build_string ("-*")); | |
1816 | else | |
1817 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1818 | } |
35027d0c KH |
1819 | registry = Fdowncase (registry); |
1820 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1821 | } |
1822 | } | |
1823 | ||
45eb10fb | 1824 | \f |
35027d0c KH |
1825 | /* This part (through the next ^L) is still experimental and not |
1826 | tested much. We may drastically change codes. */ | |
10d16101 | 1827 | |
45eb10fb | 1828 | /* OTF handler */ |
10d16101 | 1829 | |
6a3dadd2 KH |
1830 | #if 0 |
1831 | ||
e950d6f1 KH |
1832 | #define LGSTRING_HEADER_SIZE 6 |
1833 | #define LGSTRING_GLYPH_SIZE 8 | |
1834 | ||
1835 | static int | |
1836 | check_gstring (gstring) | |
1837 | Lisp_Object gstring; | |
1838 | { | |
1839 | Lisp_Object val; | |
1840 | int i, j; | |
1841 | ||
1842 | CHECK_VECTOR (gstring); | |
1843 | val = AREF (gstring, 0); | |
1844 | CHECK_VECTOR (val); | |
1845 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1846 | goto err; | |
1847 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1848 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1849 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1850 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1851 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1852 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1853 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1854 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1855 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1856 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1857 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1858 | |
071132a9 | 1859 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1860 | { |
1861 | val = LGSTRING_GLYPH (gstring, i); | |
1862 | CHECK_VECTOR (val); | |
1863 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1864 | goto err; | |
f9ffa1ea | 1865 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1866 | break; |
f9ffa1ea SM |
1867 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1868 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1869 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1870 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1871 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1872 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1873 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1874 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1875 | { |
f9ffa1ea | 1876 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1877 | CHECK_VECTOR (val); |
1878 | if (ASIZE (val) < 3) | |
1879 | goto err; | |
1880 | for (j = 0; j < 3; j++) | |
1881 | CHECK_NUMBER (AREF (val, j)); | |
1882 | } | |
1883 | } | |
1884 | return i; | |
1885 | err: | |
1886 | error ("Invalid glyph-string format"); | |
1887 | return -1; | |
1888 | } | |
1889 | ||
cf385d93 KH |
1890 | static void |
1891 | check_otf_features (otf_features) | |
1892 | Lisp_Object otf_features; | |
1893 | { | |
35027d0c | 1894 | Lisp_Object val; |
cf385d93 KH |
1895 | |
1896 | CHECK_CONS (otf_features); | |
1897 | CHECK_SYMBOL (XCAR (otf_features)); | |
1898 | otf_features = XCDR (otf_features); | |
1899 | CHECK_CONS (otf_features); | |
1900 | CHECK_SYMBOL (XCAR (otf_features)); | |
1901 | otf_features = XCDR (otf_features); | |
1902 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1903 | { | |
1904 | CHECK_SYMBOL (Fcar (val)); | |
1905 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1906 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1907 | } | |
1908 | otf_features = XCDR (otf_features); | |
1909 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1910 | { | |
1911 | CHECK_SYMBOL (Fcar (val)); | |
1912 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1913 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1914 | } | |
1915 | } | |
1916 | ||
c2f5bfd6 KH |
1917 | #ifdef HAVE_LIBOTF |
1918 | #include <otf.h> | |
1919 | ||
733fd013 | 1920 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1921 | |
1922 | static Lisp_Object | |
1923 | otf_tag_symbol (tag) | |
1924 | OTF_Tag tag; | |
1925 | { | |
1926 | char name[5]; | |
1927 | ||
1928 | OTF_tag_name (tag, name); | |
1929 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1930 | } | |
1931 | ||
1932 | static OTF * | |
35027d0c KH |
1933 | otf_open (file) |
1934 | Lisp_Object file; | |
c2f5bfd6 | 1935 | { |
35027d0c | 1936 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1937 | OTF *otf; |
1938 | ||
1939 | if (! NILP (val)) | |
1940 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1941 | else | |
c2f5bfd6 | 1942 | { |
35027d0c | 1943 | otf = STRINGP (file) ? OTF_open ((char *) SDATA (file)) : NULL; |
733fd013 | 1944 | val = make_save_value (otf, 0); |
35027d0c | 1945 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1946 | } |
733fd013 | 1947 | return otf; |
c2f5bfd6 KH |
1948 | } |
1949 | ||
1950 | ||
1951 | /* Return a list describing which scripts/languages FONT supports by | |
1952 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1953 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1954 | |
1955 | Lisp_Object | |
1956 | font_otf_capability (font) | |
1957 | struct font *font; | |
1958 | { | |
1959 | OTF *otf; | |
1960 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1961 | int i; | |
1962 | ||
35027d0c | 1963 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1964 | if (! otf) |
1965 | return Qnil; | |
1966 | for (i = 0; i < 2; i++) | |
1967 | { | |
1968 | OTF_GSUB_GPOS *gsub_gpos; | |
1969 | Lisp_Object script_list = Qnil; | |
1970 | int j; | |
1971 | ||
1972 | if (OTF_get_features (otf, i == 0) < 0) | |
1973 | continue; | |
1974 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1975 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1976 | { | |
1977 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1978 | Lisp_Object langsys_list = Qnil; | |
1979 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1980 | int k; | |
1981 | ||
1982 | for (k = script->LangSysCount; k >= 0; k--) | |
1983 | { | |
1984 | OTF_LangSys *langsys; | |
1985 | Lisp_Object feature_list = Qnil; | |
1986 | Lisp_Object langsys_tag; | |
1987 | int l; | |
1988 | ||
e80e09b4 | 1989 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1990 | { |
1991 | langsys = &script->DefaultLangSys; | |
1992 | langsys_tag = Qnil; | |
1993 | } | |
1994 | else | |
1995 | { | |
1996 | langsys = script->LangSys + k; | |
1997 | langsys_tag | |
1998 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1999 | } | |
e80e09b4 | 2000 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
2001 | { |
2002 | OTF_Feature *feature | |
2003 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
2004 | Lisp_Object feature_tag | |
2005 | = otf_tag_symbol (feature->FeatureTag); | |
2006 | ||
2007 | feature_list = Fcons (feature_tag, feature_list); | |
2008 | } | |
2009 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
2010 | langsys_list); | |
2011 | } | |
2012 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
2013 | script_list); | |
2014 | } | |
2015 | ||
2016 | if (i == 0) | |
2017 | XSETCAR (capability, script_list); | |
2018 | else | |
2019 | XSETCDR (capability, script_list); | |
2020 | } | |
2021 | ||
2022 | return capability; | |
2023 | } | |
2024 | ||
733fd013 KH |
2025 | /* Parse OTF features in SPEC and write a proper features spec string |
2026 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
2027 | assured that the sufficient memory has already allocated for | |
2028 | FEATURES. */ | |
2029 | ||
e80e09b4 | 2030 | static void |
733fd013 | 2031 | generate_otf_features (spec, features) |
c2f5bfd6 | 2032 | Lisp_Object spec; |
733fd013 | 2033 | char *features; |
c2f5bfd6 KH |
2034 | { |
2035 | Lisp_Object val; | |
35027d0c | 2036 | char *p; |
c2f5bfd6 KH |
2037 | int asterisk; |
2038 | ||
733fd013 | 2039 | p = features; |
e80e09b4 | 2040 | *p = '\0'; |
c2f5bfd6 KH |
2041 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
2042 | { | |
2043 | val = XCAR (spec); | |
e80e09b4 KH |
2044 | CHECK_SYMBOL (val); |
2045 | if (p > features) | |
733fd013 | 2046 | *p++ = ','; |
c2f5bfd6 KH |
2047 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
2048 | { | |
2049 | asterisk = 1; | |
e80e09b4 | 2050 | *p++ = '*'; |
c2f5bfd6 KH |
2051 | } |
2052 | else if (! asterisk) | |
e80e09b4 KH |
2053 | { |
2054 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
2055 | p += sprintf (p, "%s", SDATA (val)); |
2056 | } | |
c2f5bfd6 | 2057 | else |
e80e09b4 KH |
2058 | { |
2059 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
2060 | p += sprintf (p, "~%s", SDATA (val)); |
2061 | } | |
c2f5bfd6 | 2062 | } |
e80e09b4 KH |
2063 | if (CONSP (spec)) |
2064 | error ("OTF spec too long"); | |
2065 | } | |
2066 | ||
733fd013 KH |
2067 | Lisp_Object |
2068 | font_otf_DeviceTable (device_table) | |
2069 | OTF_DeviceTable *device_table; | |
2070 | { | |
2071 | int len = device_table->StartSize - device_table->EndSize + 1; | |
2072 | ||
2073 | return Fcons (make_number (len), | |
2074 | make_unibyte_string (device_table->DeltaValue, len)); | |
2075 | } | |
2076 | ||
2077 | Lisp_Object | |
2078 | font_otf_ValueRecord (value_format, value_record) | |
2079 | int value_format; | |
2080 | OTF_ValueRecord *value_record; | |
2081 | { | |
2082 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
2083 | ||
2084 | if (value_format & OTF_XPlacement) | |
43c0454d | 2085 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 2086 | if (value_format & OTF_YPlacement) |
43c0454d | 2087 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 2088 | if (value_format & OTF_XAdvance) |
43c0454d | 2089 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 2090 | if (value_format & OTF_YAdvance) |
43c0454d | 2091 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
2092 | if (value_format & OTF_XPlaDevice) |
2093 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
2094 | if (value_format & OTF_YPlaDevice) | |
2095 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
2096 | if (value_format & OTF_XAdvDevice) | |
2097 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
2098 | if (value_format & OTF_YAdvDevice) | |
2099 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
2100 | return val; | |
2101 | } | |
2102 | ||
2103 | Lisp_Object | |
2104 | font_otf_Anchor (anchor) | |
2105 | OTF_Anchor *anchor; | |
2106 | { | |
2107 | Lisp_Object val; | |
2108 | ||
2109 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2110 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2111 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2112 | if (anchor->AnchorFormat == 2) | |
2113 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2114 | else | |
2115 | { | |
2116 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2117 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2118 | } | |
2119 | return val; | |
2120 | } | |
c2f5bfd6 | 2121 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2122 | #endif /* 0 */ |
c2f5bfd6 | 2123 | |
c2f5bfd6 KH |
2124 | \f |
2125 | /* Font sorting */ | |
2126 | ||
f57e2426 J |
2127 | static unsigned font_score (Lisp_Object, Lisp_Object *); |
2128 | static int font_compare (const void *, const void *); | |
2129 | static Lisp_Object font_sort_entities (Lisp_Object, Lisp_Object, | |
2130 | Lisp_Object, int); | |
c2f5bfd6 | 2131 | |
55e41770 | 2132 | static double |
971de7fb | 2133 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
2134 | { |
2135 | Lisp_Object tail, elt; | |
2136 | Lisp_Object name = Qnil; | |
2137 | ||
2138 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2139 | { | |
2140 | elt = XCAR (tail); | |
2141 | if (FLOATP (XCDR (elt))) | |
2142 | { | |
2143 | if (STRINGP (XCAR (elt))) | |
2144 | { | |
2145 | if (NILP (name)) | |
2146 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2147 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2148 | return XFLOAT_DATA (XCDR (elt)); | |
2149 | } | |
2150 | else if (FONT_SPEC_P (XCAR (elt))) | |
2151 | { | |
2152 | if (font_match_p (XCAR (elt), font_entity)) | |
2153 | return XFLOAT_DATA (XCDR (elt)); | |
2154 | } | |
2155 | } | |
2156 | } | |
2157 | return 1.0; | |
2158 | } | |
2159 | ||
c2f5bfd6 KH |
2160 | /* We sort fonts by scoring each of them against a specified |
2161 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2162 | the value is, the closer the font is to the font-spec. | |
2163 | ||
4007dd1c KH |
2164 | The lowest 2 bits of the score is used for driver type. The font |
2165 | available by the most preferred font driver is 0. | |
35027d0c | 2166 | |
4007dd1c | 2167 | Each 7-bit in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2168 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2169 | ||
2170 | /* How many bits to shift to store the difference value of each font | |
35027d0c KH |
2171 | property in a score. Note that flots for FONT_TYPE_INDEX and |
2172 | FONT_REGISTRY_INDEX are not used. */ | |
c2f5bfd6 KH |
2173 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2174 | ||
9331887d KH |
2175 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2176 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2177 | SPEC_PROP. */ |
c2f5bfd6 KH |
2178 | |
2179 | static unsigned | |
971de7fb | 2180 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2181 | { |
2182 | unsigned score = 0; | |
2183 | int i; | |
c2f5bfd6 | 2184 | |
35027d0c KH |
2185 | /* Score three style numeric fields. Maximum difference is 127. */ |
2186 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2187 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2188 | { | |
2189 | int diff = (XINT (AREF (entity, i)) >> 8) - (XINT (spec_prop[i]) >> 8); | |
2190 | ||
2191 | if (diff < 0) | |
2192 | diff = - diff; | |
f4cc0153 KH |
2193 | if (diff > 0) |
2194 | score |= min (diff, 127) << sort_shift_bits[i]; | |
35027d0c KH |
2195 | } |
2196 | ||
2197 | /* Score the size. Maximum difference is 127. */ | |
2198 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2199 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2200 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2201 | { |
2202 | /* We use the higher 6-bit for the actual size difference. The | |
2203 | lowest bit is set if the DPI is different. */ | |
55e41770 KH |
2204 | int diff; |
2205 | int pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2206 | |
55e41770 KH |
2207 | if (CONSP (Vface_font_rescale_alist)) |
2208 | pixel_size *= font_rescale_ratio (entity); | |
2209 | diff = pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX)); | |
35027d0c KH |
2210 | if (diff < 0) |
2211 | diff = - diff; | |
d0ab1ebe | 2212 | diff <<= 1; |
35027d0c KH |
2213 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2214 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2215 | diff |= 1; | |
c0a6070d KH |
2216 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2217 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2218 | diff |= 1; | |
35027d0c | 2219 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2220 | } |
2221 | ||
2222 | return score; | |
2223 | } | |
2224 | ||
2225 | ||
72d36834 KH |
2226 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2227 | of font-entity vectors. */ | |
c2f5bfd6 | 2228 | |
72d36834 KH |
2229 | static Lisp_Object |
2230 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2231 | { |
72d36834 KH |
2232 | int nargs = XINT (Flength (list)); |
2233 | Lisp_Object *args = alloca (sizeof (Lisp_Object) * nargs); | |
2234 | int i; | |
2235 | ||
2236 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2237 | args[i] = XCAR (list); | |
2238 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2239 | } |
2240 | ||
2241 | ||
2242 | /* The structure for elements being sorted by qsort. */ | |
2243 | struct font_sort_data | |
2244 | { | |
2245 | unsigned score; | |
72d36834 | 2246 | int font_driver_preference; |
c2f5bfd6 KH |
2247 | Lisp_Object entity; |
2248 | }; | |
2249 | ||
2250 | ||
72d36834 KH |
2251 | /* The comparison function for qsort. */ |
2252 | ||
2253 | static int | |
971de7fb | 2254 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2255 | { |
2256 | const struct font_sort_data *data1 = d1; | |
2257 | const struct font_sort_data *data2 = d2; | |
2258 | ||
2259 | if (data1->score < data2->score) | |
2260 | return -1; | |
2261 | else if (data1->score > data2->score) | |
2262 | return 1; | |
2263 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2264 | } | |
2265 | ||
2266 | ||
2267 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2268 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2269 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2270 | of FRAME before sorting. |
35027d0c | 2271 | |
c9477f01 KH |
2272 | If BEST-ONLY is nonzero, return the best matching entity (that |
2273 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2274 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2275 | a single vector of font-entities. | |
c9477f01 | 2276 | |
72d36834 KH |
2277 | This function does no optimization for the case that the total |
2278 | number of elements is 1. The caller should avoid calling this in | |
2279 | such a case. */ | |
c2f5bfd6 KH |
2280 | |
2281 | static Lisp_Object | |
971de7fb | 2282 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, Lisp_Object frame, int best_only) |
c2f5bfd6 | 2283 | { |
9331887d | 2284 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2285 | int len, maxlen, i; |
c2f5bfd6 | 2286 | struct font_sort_data *data; |
35027d0c | 2287 | unsigned best_score; |
72d36834 | 2288 | Lisp_Object best_entity; |
4007dd1c | 2289 | struct frame *f = XFRAME (frame); |
72d36834 | 2290 | Lisp_Object tail, vec; |
c2f5bfd6 KH |
2291 | USE_SAFE_ALLOCA; |
2292 | ||
9903d1e6 | 2293 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2294 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2295 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2296 | prefer_prop[FONT_SIZE_INDEX] | |
2297 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2298 | ||
72d36834 KH |
2299 | if (NILP (XCDR (list))) |
2300 | { | |
2301 | /* What we have to take care of is this single vector. */ | |
2302 | vec = XCAR (list); | |
2303 | maxlen = ASIZE (vec); | |
2304 | } | |
2305 | else if (best_only) | |
2306 | { | |
2307 | /* We don't have to perform sort, so there's no need of creating | |
2308 | a single vector. But, we must find the length of the longest | |
2309 | vector. */ | |
2310 | maxlen = 0; | |
2311 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2312 | if (maxlen < ASIZE (XCAR (tail))) | |
2313 | maxlen = ASIZE (XCAR (tail)); | |
2314 | } | |
2315 | else | |
2316 | { | |
2317 | /* We have to create a single vector to sort it. */ | |
2318 | vec = font_vconcat_entity_vectors (list); | |
2319 | maxlen = ASIZE (vec); | |
2320 | } | |
2321 | ||
2322 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * maxlen); | |
c9477f01 KH |
2323 | best_score = 0xFFFFFFFF; |
2324 | best_entity = Qnil; | |
72d36834 KH |
2325 | |
2326 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2327 | { |
72d36834 KH |
2328 | int font_driver_preference = 0; |
2329 | Lisp_Object current_font_driver; | |
ce75f06e | 2330 | |
72d36834 KH |
2331 | if (best_only) |
2332 | vec = XCAR (tail); | |
2333 | len = ASIZE (vec); | |
2334 | ||
2335 | /* We are sure that the length of VEC > 0. */ | |
2336 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2337 | /* Score the elements. */ | |
2338 | for (i = 0; i < len; i++) | |
35027d0c | 2339 | { |
72d36834 KH |
2340 | data[i].entity = AREF (vec, i); |
2341 | data[i].score | |
2342 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2343 | > 0) | |
2344 | ? font_score (data[i].entity, prefer_prop) | |
2345 | : 0xFFFFFFFF); | |
2346 | if (best_only && best_score > data[i].score) | |
2347 | { | |
2348 | best_score = data[i].score; | |
2349 | best_entity = data[i].entity; | |
2350 | if (best_score == 0) | |
2351 | break; | |
2352 | } | |
2353 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2354 | { | |
2355 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2356 | font_driver_preference++; | |
2357 | } | |
2358 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2359 | } |
72d36834 KH |
2360 | |
2361 | /* Sort if necessary. */ | |
2362 | if (! best_only) | |
2363 | { | |
2364 | qsort (data, len, sizeof *data, font_compare); | |
2365 | for (i = 0; i < len; i++) | |
2366 | ASET (vec, i, data[i].entity); | |
2367 | break; | |
2368 | } | |
2369 | else | |
2370 | vec = best_entity; | |
c2f5bfd6 | 2371 | } |
72d36834 | 2372 | |
c2f5bfd6 KH |
2373 | SAFE_FREE (); |
2374 | ||
652b9560 | 2375 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2376 | return vec; |
2377 | } | |
2378 | ||
2379 | \f | |
2380 | /* API of Font Service Layer. */ | |
2381 | ||
45eb10fb KH |
2382 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2383 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2384 | function with font_sort_order after setting up it. */ | |
2385 | ||
c2f5bfd6 | 2386 | void |
971de7fb | 2387 | font_update_sort_order (int *order) |
c2f5bfd6 | 2388 | { |
35027d0c | 2389 | int i, shift_bits; |
c2f5bfd6 | 2390 | |
943b7eea | 2391 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2392 | { |
2393 | int xlfd_idx = order[i]; | |
2394 | ||
2395 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2396 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2397 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2398 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2399 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2400 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2401 | else | |
2402 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2403 | } | |
2404 | } | |
2405 | ||
51c13510 | 2406 | static int |
971de7fb | 2407 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, Lisp_Object features, Lisp_Object table) |
51c13510 KH |
2408 | { |
2409 | Lisp_Object val; | |
2410 | int negative; | |
2411 | ||
2412 | table = assq_no_quit (script, table); | |
2413 | if (NILP (table)) | |
2414 | return 0; | |
2415 | table = XCDR (table); | |
2416 | if (! NILP (langsys)) | |
2417 | { | |
2418 | table = assq_no_quit (langsys, table); | |
2419 | if (NILP (table)) | |
2420 | return 0; | |
2421 | } | |
2422 | else | |
2423 | { | |
2424 | val = assq_no_quit (Qnil, table); | |
2425 | if (NILP (val)) | |
2426 | table = XCAR (table); | |
2427 | else | |
2428 | table = val; | |
2429 | } | |
2430 | table = XCDR (table); | |
2431 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2432 | { | |
2433 | if (NILP (XCAR (features))) | |
c423ecca KH |
2434 | { |
2435 | negative = 1; | |
2436 | continue; | |
2437 | } | |
51c13510 KH |
2438 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2439 | return 0; | |
2440 | } | |
2441 | return 1; | |
2442 | } | |
2443 | ||
2444 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2445 | ||
2446 | static int | |
3cba9369 | 2447 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2448 | { |
2449 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2450 | ||
2451 | script = XCAR (spec); | |
2452 | spec = XCDR (spec); | |
2453 | if (! NILP (spec)) | |
2454 | { | |
2455 | langsys = XCAR (spec); | |
2456 | spec = XCDR (spec); | |
2457 | if (! NILP (spec)) | |
2458 | { | |
2459 | gsub = XCAR (spec); | |
2460 | spec = XCDR (spec); | |
2461 | if (! NILP (spec)) | |
2462 | gpos = XCAR (spec); | |
2463 | } | |
2464 | } | |
2465 | ||
2466 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2467 | XCAR (otf_capability))) | |
2468 | return 0; | |
2469 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2470 | XCDR (otf_capability))) | |
2471 | return 0; | |
2472 | return 1; | |
2473 | } | |
2474 | ||
45eb10fb | 2475 | |
51c13510 KH |
2476 | |
2477 | /* Check if FONT (font-entity or font-object) matches with the font | |
2478 | specification SPEC. */ | |
45eb10fb | 2479 | |
ef18374f | 2480 | int |
971de7fb | 2481 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2482 | { |
51c13510 KH |
2483 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2484 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2485 | int i; |
2486 | ||
51c13510 KH |
2487 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2488 | if (! NILP (AREF (spec, i)) | |
2489 | && ! NILP (AREF (font, i)) | |
2490 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2491 | return 0; | |
2492 | props = XFONT_SPEC (spec)->props; | |
2493 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2494 | { | |
2495 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2496 | prop[i] = AREF (spec, i); | |
2497 | prop[FONT_SIZE_INDEX] | |
2498 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2499 | props = prop; | |
2500 | } | |
2501 | ||
2502 | if (font_score (font, props) > 0) | |
2503 | return 0; | |
2504 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2505 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2506 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2507 | { |
51c13510 KH |
2508 | Lisp_Object key = XCAR (XCAR (extra)); |
2509 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2510 | ||
2511 | if (EQ (key, QClang)) | |
2512 | { | |
2513 | val2 = assq_no_quit (key, font_extra); | |
2514 | if (NILP (val2)) | |
2515 | return 0; | |
2516 | val2 = XCDR (val2); | |
2517 | if (CONSP (val)) | |
2518 | { | |
2519 | if (! CONSP (val2)) | |
2520 | return 0; | |
2521 | while (CONSP (val)) | |
2522 | if (NILP (Fmemq (val, val2))) | |
2523 | return 0; | |
2524 | } | |
2525 | else | |
2526 | if (CONSP (val2) | |
2527 | ? NILP (Fmemq (val, XCDR (val2))) | |
2528 | : ! EQ (val, val2)) | |
2529 | return 0; | |
2530 | } | |
2531 | else if (EQ (key, QCscript)) | |
2532 | { | |
2533 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2534 | if (CONSP (val2)) |
2535 | { | |
2536 | val2 = XCDR (val2); | |
2537 | if (CONSP (val2)) | |
2538 | { | |
2539 | /* All characters in the list must be supported. */ | |
2540 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2541 | { | |
2542 | if (! NATNUMP (XCAR (val2))) | |
2543 | continue; | |
2544 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2545 | == FONT_INVALID_CODE) | |
2546 | return 0; | |
2547 | } | |
2548 | } | |
2549 | else if (VECTORP (val2)) | |
2550 | { | |
2551 | /* At most one character in the vector must be supported. */ | |
2552 | for (i = 0; i < ASIZE (val2); i++) | |
2553 | { | |
2554 | if (! NATNUMP (AREF (val2, i))) | |
2555 | continue; | |
2556 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2557 | != FONT_INVALID_CODE) | |
f5485732 | 2558 | break; |
5bdd4dd2 KH |
2559 | } |
2560 | if (i == ASIZE (val2)) | |
2561 | return 0; | |
2562 | } | |
2563 | } | |
51c13510 KH |
2564 | } |
2565 | else if (EQ (key, QCotf)) | |
2566 | { | |
2567 | struct font *fontp; | |
2568 | ||
2569 | if (! FONT_OBJECT_P (font)) | |
2570 | return 0; | |
2571 | fontp = XFONT_OBJECT (font); | |
2572 | if (! fontp->driver->otf_capability) | |
2573 | return 0; | |
2574 | val2 = fontp->driver->otf_capability (fontp); | |
2575 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2576 | return 0; | |
2577 | } | |
35027d0c KH |
2578 | } |
2579 | ||
51c13510 | 2580 | return 1; |
ef18374f | 2581 | } |
ca4da08a | 2582 | \f |
819e81df | 2583 | |
ca4da08a KH |
2584 | /* Font cache |
2585 | ||
2586 | Each font backend has the callback function get_cache, and it | |
2587 | returns a cons cell of which cdr part can be freely used for | |
2588 | caching fonts. The cons cell may be shared by multiple frames | |
2589 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2590 | ||
2591 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2592 | ||
2593 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2594 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2595 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2596 | ||
f57e2426 J |
2597 | static void font_prepare_cache (FRAME_PTR, struct font_driver *); |
2598 | static void font_finish_cache (FRAME_PTR, struct font_driver *); | |
2599 | static Lisp_Object font_get_cache (FRAME_PTR, struct font_driver *); | |
2600 | static void font_clear_cache (FRAME_PTR, Lisp_Object, | |
2601 | struct font_driver *); | |
ca4da08a KH |
2602 | |
2603 | static void | |
971de7fb | 2604 | font_prepare_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2605 | { |
2606 | Lisp_Object cache, val; | |
2607 | ||
2608 | cache = driver->get_cache (f); | |
2609 | val = XCDR (cache); | |
2610 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2611 | val = XCDR (val); | |
2612 | if (NILP (val)) | |
2613 | { | |
2614 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2615 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2616 | } | |
2617 | else | |
2618 | { | |
2619 | val = XCDR (XCAR (val)); | |
2620 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2621 | } | |
2622 | } | |
2623 | ||
43c0454d | 2624 | |
ca4da08a | 2625 | static void |
971de7fb | 2626 | font_finish_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2627 | { |
2628 | Lisp_Object cache, val, tmp; | |
2629 | ||
2630 | ||
2631 | cache = driver->get_cache (f); | |
2632 | val = XCDR (cache); | |
2633 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2634 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2635 | font_assert (! NILP (val)); |
ca4da08a | 2636 | tmp = XCDR (XCAR (val)); |
43c0454d | 2637 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2638 | if (XINT (XCAR (tmp)) == 0) |
2639 | { | |
2640 | font_clear_cache (f, XCAR (val), driver); | |
2641 | XSETCDR (cache, XCDR (val)); | |
2642 | } | |
ca4da08a KH |
2643 | } |
2644 | ||
43c0454d | 2645 | |
ca4da08a | 2646 | static Lisp_Object |
971de7fb | 2647 | font_get_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2648 | { |
2649 | Lisp_Object val = driver->get_cache (f); | |
2650 | Lisp_Object type = driver->type; | |
2651 | ||
d0ab1ebe | 2652 | font_assert (CONSP (val)); |
ca4da08a | 2653 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2654 | font_assert (CONSP (val)); |
ca4da08a KH |
2655 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2656 | val = XCDR (XCAR (val)); | |
2657 | return val; | |
2658 | } | |
2659 | ||
43c0454d KH |
2660 | static int num_fonts; |
2661 | ||
ca4da08a | 2662 | static void |
971de7fb | 2663 | font_clear_cache (FRAME_PTR f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2664 | { |
2665 | Lisp_Object tail, elt; | |
6136b72f | 2666 | Lisp_Object tail2, entity; |
51c01100 | 2667 | |
ca4da08a KH |
2668 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2669 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2670 | { | |
2671 | elt = XCAR (tail); | |
6136b72f CY |
2672 | /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */ |
2673 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
ca4da08a | 2674 | { |
6136b72f | 2675 | for (tail2 = XCDR (elt); CONSP (tail2); tail2 = XCDR (tail2)) |
ca4da08a | 2676 | { |
6136b72f | 2677 | entity = XCAR (tail2); |
ca4da08a | 2678 | |
6136b72f CY |
2679 | if (FONT_ENTITY_P (entity) |
2680 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2681 | { |
2682 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2683 | ||
2684 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2685 | { | |
2686 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2687 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2688 | |
5e634ec9 KH |
2689 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2690 | { | |
2691 | font_assert (font && driver == font->driver); | |
2692 | driver->close (f, font); | |
2693 | num_fonts--; | |
2694 | } | |
ca4da08a KH |
2695 | } |
2696 | if (driver->free_entity) | |
2697 | driver->free_entity (entity); | |
2698 | } | |
2699 | } | |
2700 | } | |
2701 | } | |
2702 | XSETCDR (cache, Qnil); | |
2703 | } | |
2704 | \f | |
2705 | ||
c2f5bfd6 KH |
2706 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2707 | ||
7d56b2dd KH |
2708 | /* Check each font-entity in VEC, and return a list of font-entities |
2709 | that satisfy this condition: | |
2710 | (1) matches with SPEC and SIZE if SPEC is not nil, and | |
2711 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2712 | */ | |
2713 | ||
35027d0c | 2714 | Lisp_Object |
971de7fb | 2715 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2716 | { |
d0ab1ebe | 2717 | Lisp_Object entity, val; |
35027d0c | 2718 | enum font_property_index prop; |
72d36834 | 2719 | int i; |
45eb10fb | 2720 | |
72d36834 | 2721 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2722 | { |
72d36834 | 2723 | entity = AREF (vec, i); |
7d56b2dd KH |
2724 | if (! NILP (Vface_ignored_fonts)) |
2725 | { | |
2726 | char name[256]; | |
2727 | Lisp_Object tail, regexp; | |
2728 | ||
2729 | if (font_unparse_xlfd (entity, 0, name, 256) >= 0) | |
2730 | { | |
2731 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2732 | { | |
2733 | regexp = XCAR (tail); | |
2734 | if (STRINGP (regexp) | |
2735 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
2736 | break; | |
2737 | } | |
2738 | if (CONSP (tail)) | |
2739 | continue; | |
2740 | } | |
2741 | } | |
2742 | if (NILP (spec)) | |
2743 | { | |
2744 | val = Fcons (entity, val); | |
2745 | continue; | |
2746 | } | |
35027d0c KH |
2747 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2748 | if (INTEGERP (AREF (spec, prop)) | |
2749 | && ((XINT (AREF (spec, prop)) >> 8) | |
2750 | != (XINT (AREF (entity, prop)) >> 8))) | |
2751 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2752 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2753 | && size |
2754 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2755 | { | |
2756 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2757 | |
35027d0c KH |
2758 | if (diff != 0 |
2759 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2760 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2761 | prop = FONT_SPEC_MAX; | |
2762 | } | |
7181ea6a KH |
2763 | if (prop < FONT_SPEC_MAX |
2764 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2765 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2766 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2767 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2768 | prop = FONT_SPEC_MAX; | |
2769 | if (prop < FONT_SPEC_MAX | |
2770 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2771 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2772 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2773 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2774 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2775 | prop = FONT_SPEC_MAX; | |
35027d0c | 2776 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2777 | val = Fcons (entity, val); |
35027d0c | 2778 | } |
72d36834 | 2779 | return (Fvconcat (1, &val)); |
35027d0c KH |
2780 | } |
2781 | ||
2782 | ||
72d36834 | 2783 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2784 | FRAME. Each elements in the list is a vector of entities from the |
2785 | same font-driver. */ | |
35027d0c KH |
2786 | |
2787 | Lisp_Object | |
971de7fb | 2788 | font_list_entities (Lisp_Object frame, Lisp_Object spec) |
c2f5bfd6 KH |
2789 | { |
2790 | FRAME_PTR f = XFRAME (frame); | |
2791 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2792 | Lisp_Object ftype, val; |
72d36834 | 2793 | Lisp_Object list = Qnil; |
35027d0c KH |
2794 | int size; |
2795 | int need_filtering = 0; | |
c2f5bfd6 KH |
2796 | int i; |
2797 | ||
d0ab1ebe | 2798 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2799 | |
35027d0c KH |
2800 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2801 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2802 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2803 | size = font_pixel_size (f, spec); | |
2804 | else | |
2805 | size = 0; | |
2806 | ||
c2f5bfd6 | 2807 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2808 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2809 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2810 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
35027d0c KH |
2811 | { |
2812 | ASET (scratch_font_spec, i, Qnil); | |
2813 | if (! NILP (AREF (spec, i))) | |
2814 | need_filtering = 1; | |
4007dd1c KH |
2815 | if (i == FONT_DPI_INDEX) |
2816 | /* Skip FONT_SPACING_INDEX */ | |
2817 | i++; | |
35027d0c | 2818 | } |
aa50ca2f | 2819 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2820 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2821 | ||
c2f5bfd6 | 2822 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2823 | if (driver_list->on |
2824 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2825 | { |
ca4da08a | 2826 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2827 | |
e4c93315 | 2828 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2829 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2830 | if (CONSP (val)) | |
2831 | val = XCDR (val); | |
2832 | else | |
c2f5bfd6 | 2833 | { |
4007dd1c | 2834 | Lisp_Object copy; |
35027d0c | 2835 | |
4007dd1c | 2836 | val = driver_list->driver->list (frame, scratch_font_spec); |
72d36834 KH |
2837 | if (NILP (val)) |
2838 | val = null_vector; | |
2839 | else | |
2840 | val = Fvconcat (1, &val); | |
4007dd1c KH |
2841 | copy = Fcopy_font_spec (scratch_font_spec); |
2842 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); | |
2843 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2844 | } |
7d56b2dd KH |
2845 | if (ASIZE (val) > 0 |
2846 | && (need_filtering | |
2847 | || ! NILP (Vface_ignored_fonts))) | |
2848 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2849 | if (ASIZE (val) > 0) |
2850 | list = Fcons (val, list); | |
c2f5bfd6 | 2851 | } |
35027d0c | 2852 | |
72d36834 KH |
2853 | list = Fnreverse (list); |
2854 | FONT_ADD_LOG ("list", spec, list); | |
2855 | return list; | |
c2f5bfd6 KH |
2856 | } |
2857 | ||
45eb10fb | 2858 | |
35027d0c KH |
2859 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2860 | nil, is an array of face's attributes, which specifies preferred | |
2861 | font-related attributes. */ | |
45eb10fb | 2862 | |
e950d6f1 | 2863 | static Lisp_Object |
971de7fb | 2864 | font_matching_entity (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2865 | { |
e950d6f1 KH |
2866 | struct font_driver_list *driver_list = f->font_driver_list; |
2867 | Lisp_Object ftype, size, entity; | |
35027d0c | 2868 | Lisp_Object frame; |
819ab95f | 2869 | Lisp_Object work = Fcopy_font_spec (spec); |
e950d6f1 | 2870 | |
35027d0c | 2871 | XSETFRAME (frame, f); |
e950d6f1 KH |
2872 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2873 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2874 | |
8d0e382e AR |
2875 | if (FLOATP (size)) |
2876 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2877 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2878 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2879 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2880 | ||
e950d6f1 KH |
2881 | entity = Qnil; |
2882 | for (; driver_list; driver_list = driver_list->next) | |
2883 | if (driver_list->on | |
2884 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2885 | { | |
ca4da08a | 2886 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2887 | Lisp_Object copy; |
e950d6f1 | 2888 | |
819ab95f KH |
2889 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2890 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2891 | if (CONSP (entity)) |
e950d6f1 KH |
2892 | entity = XCDR (entity); |
2893 | else | |
2894 | { | |
819ab95f KH |
2895 | entity = driver_list->driver->match (frame, work); |
2896 | copy = Fcopy_font_spec (work); | |
7cee5d63 KH |
2897 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2898 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2899 | } |
2900 | if (! NILP (entity)) | |
2901 | break; | |
2902 | } | |
652b9560 | 2903 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2904 | return entity; |
2905 | } | |
2906 | ||
45eb10fb KH |
2907 | |
2908 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2909 | opened font object. */ | |
2910 | ||
c2f5bfd6 | 2911 | static Lisp_Object |
971de7fb | 2912 | font_open_entity (FRAME_PTR f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2913 | { |
2914 | struct font_driver_list *driver_list; | |
43c0454d | 2915 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2916 | struct font *font; |
d26424c5 | 2917 | int min_width, height; |
a35dd56b | 2918 | int scaled_pixel_size; |
c2f5bfd6 | 2919 | |
d0ab1ebe | 2920 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2921 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2922 | if (XINT (size) != 0) |
a35dd56b | 2923 | scaled_pixel_size = pixel_size = XINT (size); |
55e41770 | 2924 | else if (CONSP (Vface_font_rescale_alist)) |
a35dd56b | 2925 | scaled_pixel_size = pixel_size * font_rescale_ratio (entity); |
c2f5bfd6 | 2926 | |
35027d0c KH |
2927 | val = AREF (entity, FONT_TYPE_INDEX); |
2928 | for (driver_list = f->font_driver_list; | |
2929 | driver_list && ! EQ (driver_list->driver->type, val); | |
2930 | driver_list = driver_list->next); | |
2931 | if (! driver_list) | |
2932 | return Qnil; | |
c2f5bfd6 | 2933 | |
d0cf45b7 JD |
2934 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2935 | objlist = XCDR (objlist)) | |
2936 | { | |
2937 | Lisp_Object fn = XCAR (objlist); | |
2938 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2939 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2940 | { | |
2941 | if (driver_list->driver->cached_font_ok == NULL | |
2942 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2943 | return fn; | |
2944 | } | |
2945 | } | |
2946 | ||
a35dd56b | 2947 | font_object = driver_list->driver->open (f, entity, scaled_pixel_size); |
66f5ced0 YM |
2948 | if (!NILP (font_object)) |
2949 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2950 | FONT_ADD_LOG ("open", entity, font_object); |
43c0454d | 2951 | if (NILP (font_object)) |
35027d0c KH |
2952 | return Qnil; |
2953 | ASET (entity, FONT_OBJLIST_INDEX, | |
2954 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2955 | num_fonts++; |
2956 | ||
2957 | font = XFONT_OBJECT (font_object); | |
2958 | min_width = (font->min_width ? font->min_width | |
2959 | : font->average_width ? font->average_width | |
2960 | : font->space_width ? font->space_width | |
2961 | : 1); | |
d26424c5 | 2962 | height = (font->height ? font->height : 1); |
819e81df | 2963 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2964 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2965 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2966 | { |
35027d0c | 2967 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2968 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
35027d0c KH |
2969 | fonts_changed_p = 1; |
2970 | } | |
2971 | else | |
2972 | { | |
2973 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2974 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
d26424c5 KH |
2975 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
2976 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, fonts_changed_p = 1; | |
43c0454d | 2977 | } |
819e81df | 2978 | #endif |
43c0454d KH |
2979 | |
2980 | return font_object; | |
c2f5bfd6 KH |
2981 | } |
2982 | ||
45eb10fb KH |
2983 | |
2984 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2985 | ||
c2f5bfd6 | 2986 | void |
971de7fb | 2987 | font_close_object (FRAME_PTR f, Lisp_Object font_object) |
c2f5bfd6 | 2988 | { |
35027d0c | 2989 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2990 | |
5e634ec9 KH |
2991 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2992 | /* Already closed. */ | |
2993 | return; | |
652b9560 | 2994 | FONT_ADD_LOG ("close", font_object, Qnil); |
5e634ec9 | 2995 | font->driver->close (f, font); |
819e81df | 2996 | #ifdef HAVE_WINDOW_SYSTEM |
5e634ec9 KH |
2997 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2998 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2999 | #endif |
5e634ec9 | 3000 | num_fonts--; |
c2f5bfd6 KH |
3001 | } |
3002 | ||
45eb10fb | 3003 | |
1701724c KH |
3004 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
3005 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 3006 | |
c2f5bfd6 | 3007 | int |
971de7fb | 3008 | font_has_char (FRAME_PTR f, Lisp_Object font, int c) |
c2f5bfd6 | 3009 | { |
1b834a8d | 3010 | struct font *fontp; |
c2f5bfd6 | 3011 | |
1b834a8d KH |
3012 | if (FONT_ENTITY_P (font)) |
3013 | { | |
3014 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
3015 | struct font_driver_list *driver_list; | |
3016 | ||
3017 | for (driver_list = f->font_driver_list; | |
3018 | driver_list && ! EQ (driver_list->driver->type, type); | |
3019 | driver_list = driver_list->next); | |
3020 | if (! driver_list) | |
3021 | return 0; | |
3022 | if (! driver_list->driver->has_char) | |
3023 | return -1; | |
3024 | return driver_list->driver->has_char (font, c); | |
3025 | } | |
3026 | ||
d0ab1ebe | 3027 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 3028 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
3029 | if (fontp->driver->has_char) |
3030 | { | |
35027d0c | 3031 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
3032 | |
3033 | if (result >= 0) | |
3034 | return result; | |
3035 | } | |
3036 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
3037 | } |
3038 | ||
45eb10fb KH |
3039 | |
3040 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
3041 | ||
c2f5bfd6 | 3042 | unsigned |
971de7fb | 3043 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 3044 | { |
35027d0c | 3045 | struct font *font; |
c2f5bfd6 | 3046 | |
d0ab1ebe | 3047 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 3048 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
3049 | return font->driver->encode_char (font, c); |
3050 | } | |
3051 | ||
45eb10fb KH |
3052 | |
3053 | /* Return the name of FONT_OBJECT. */ | |
3054 | ||
ef18374f | 3055 | Lisp_Object |
971de7fb | 3056 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 3057 | { |
d0ab1ebe | 3058 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 3059 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
3060 | } |
3061 | ||
45eb10fb KH |
3062 | |
3063 | /* Return the specification of FONT_OBJECT. */ | |
3064 | ||
ef18374f | 3065 | Lisp_Object |
971de7fb | 3066 | font_get_spec (Lisp_Object font_object) |
ef18374f | 3067 | { |
35027d0c | 3068 | Lisp_Object spec = font_make_spec (); |
ef18374f KH |
3069 | int i; |
3070 | ||
3071 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
35027d0c KH |
3072 | ASET (spec, i, AREF (font_object, i)); |
3073 | ASET (spec, FONT_SIZE_INDEX, | |
3074 | make_number (XFONT_OBJECT (font_object)->pixel_size)); | |
ef18374f | 3075 | return spec; |
c2f5bfd6 KH |
3076 | } |
3077 | ||
05802645 CY |
3078 | |
3079 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME | |
3080 | could not be parsed by font_parse_name, return Qnil. */ | |
3081 | ||
35027d0c | 3082 | Lisp_Object |
971de7fb | 3083 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 3084 | { |
05802645 | 3085 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 3086 | |
05802645 CY |
3087 | CHECK_STRING (font_name); |
3088 | if (font_parse_name ((char *) SDATA (font_name), spec) == -1) | |
3089 | return Qnil; | |
3090 | font_put_extra (spec, QCname, font_name); | |
42707278 | 3091 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 3092 | return spec; |
35027d0c KH |
3093 | } |
3094 | ||
45eb10fb | 3095 | |
35027d0c | 3096 | void |
971de7fb | 3097 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
3098 | { |
3099 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 3100 | |
35027d0c KH |
3101 | if (! FONTP (font)) |
3102 | return; | |
42707278 | 3103 | |
483670b5 KH |
3104 | if (! NILP (Ffont_get (font, QCname))) |
3105 | { | |
3106 | font = Fcopy_font_spec (font); | |
3107 | font_put_extra (font, QCname, Qnil); | |
3108 | } | |
3109 | ||
35027d0c | 3110 | if (NILP (AREF (font, prop)) |
e234927a CY |
3111 | && prop != FONT_FAMILY_INDEX |
3112 | && prop != FONT_FOUNDRY_INDEX | |
3113 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 3114 | && prop != FONT_SIZE_INDEX) |
35027d0c | 3115 | return; |
483670b5 KH |
3116 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
3117 | font = Fcopy_font_spec (font); | |
35027d0c | 3118 | ASET (font, prop, Qnil); |
4007dd1c | 3119 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 3120 | { |
4007dd1c | 3121 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
3122 | { |
3123 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
3124 | /* If we are setting the font family, we must also clear | |
3125 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
3126 | support for some widths. */ | |
3127 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
3128 | } | |
35027d0c | 3129 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3130 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3131 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3132 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3133 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3134 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3135 | } | |
3136 | else if (prop == FONT_SIZE_INDEX) | |
3137 | { | |
3138 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3139 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3140 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3141 | } | |
e234927a CY |
3142 | else if (prop == FONT_WIDTH_INDEX) |
3143 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3144 | attrs[LFACE_FONT_INDEX] = font; |
3145 | } | |
3146 | ||
3147 | void | |
971de7fb | 3148 | font_update_lface (FRAME_PTR f, Lisp_Object *attrs) |
c2f5bfd6 | 3149 | { |
d0ab1ebe | 3150 | Lisp_Object spec; |
35027d0c KH |
3151 | |
3152 | spec = attrs[LFACE_FONT_INDEX]; | |
3153 | if (! FONT_SPEC_P (spec)) | |
3154 | return; | |
3155 | ||
4007dd1c KH |
3156 | if (! NILP (AREF (spec, FONT_FOUNDRY_INDEX))) |
3157 | attrs[LFACE_FOUNDRY_INDEX] = SYMBOL_NAME (AREF (spec, FONT_FOUNDRY_INDEX)); | |
3158 | if (! NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3159 | attrs[LFACE_FAMILY_INDEX] = SYMBOL_NAME (AREF (spec, FONT_FAMILY_INDEX)); | |
35027d0c KH |
3160 | if (! NILP (AREF (spec, FONT_WEIGHT_INDEX))) |
3161 | attrs[LFACE_WEIGHT_INDEX] = FONT_WEIGHT_FOR_FACE (spec); | |
3162 | if (! NILP (AREF (spec, FONT_SLANT_INDEX))) | |
8510724d | 3163 | attrs[LFACE_SLANT_INDEX] = FONT_SLANT_FOR_FACE (spec); |
35027d0c KH |
3164 | if (! NILP (AREF (spec, FONT_WIDTH_INDEX))) |
3165 | attrs[LFACE_SWIDTH_INDEX] = FONT_WIDTH_FOR_FACE (spec); | |
3166 | if (! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
3167 | { | |
3168 | int point; | |
3169 | ||
3170 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) | |
3171 | { | |
3172 | Lisp_Object val; | |
3173 | int dpi = f->resy; | |
3174 | ||
3175 | val = Ffont_get (spec, QCdpi); | |
3176 | if (! NILP (val)) | |
3177 | dpi = XINT (val); | |
3178 | point = PIXEL_TO_POINT (XINT (AREF (spec, FONT_SIZE_INDEX)) * 10, | |
3179 | dpi); | |
2cf4d521 | 3180 | attrs[LFACE_HEIGHT_INDEX] = make_number (point); |
35027d0c KH |
3181 | } |
3182 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2cf4d521 CY |
3183 | { |
3184 | point = XFLOAT_DATA (AREF (spec, FONT_SIZE_INDEX)) * 10; | |
3185 | attrs[LFACE_HEIGHT_INDEX] = make_number (point); | |
3186 | } | |
35027d0c | 3187 | } |
c2f5bfd6 KH |
3188 | } |
3189 | ||
45eb10fb | 3190 | |
72d36834 KH |
3191 | /* Selecte a font from ENTITIES (list of font-entity vectors) that |
3192 | supports C and matches best with ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
3193 | |
3194 | static Lisp_Object | |
971de7fb | 3195 | font_select_entity (Lisp_Object frame, Lisp_Object entities, Lisp_Object *attrs, int pixel_size, int c) |
988a7ddb KH |
3196 | { |
3197 | Lisp_Object font_entity; | |
3198 | Lisp_Object prefer; | |
988a7ddb KH |
3199 | int result, i; |
3200 | FRAME_PTR f = XFRAME (frame); | |
3201 | ||
72d36834 KH |
3202 | if (NILP (XCDR (entities)) |
3203 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 3204 | { |
72d36834 | 3205 | font_entity = AREF (XCAR (entities), 0); |
988a7ddb KH |
3206 | if (c < 0 |
3207 | || (result = font_has_char (f, font_entity, c)) > 0) | |
3208 | return font_entity; | |
3209 | return Qnil; | |
3210 | } | |
3211 | ||
3212 | /* Sort fonts by properties specified in ATTRS. */ | |
3213 | prefer = scratch_font_prefer; | |
3214 | ||
3215 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3216 | ASET (prefer, i, Qnil); | |
3217 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3218 | { | |
3219 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3220 | ||
3221 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3222 | ASET (prefer, i, AREF (face_font, i)); | |
3223 | } | |
3224 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3225 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3226 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3227 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3228 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3229 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3230 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3231 | |
2645d15b | 3232 | return font_sort_entities (entities, prefer, frame, c); |
988a7ddb KH |
3233 | } |
3234 | ||
35027d0c KH |
3235 | /* Return a font-entity satisfying SPEC and best matching with face's |
3236 | font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3237 | character that the entity must support. */ |
c2f5bfd6 KH |
3238 | |
3239 | Lisp_Object | |
971de7fb | 3240 | font_find_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3241 | { |
4007dd1c | 3242 | Lisp_Object work; |
72d36834 | 3243 | Lisp_Object frame, entities, val; |
22459668 | 3244 | Lisp_Object size, foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3245 | int pixel_size; |
72d36834 | 3246 | int i, j, k, l; |
d0a47776 KH |
3247 | |
3248 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3249 | if (NILP (registry[0])) | |
3250 | { | |
edfda783 | 3251 | registry[0] = DEFAULT_ENCODING; |
d0a47776 KH |
3252 | registry[1] = Qascii_0; |
3253 | registry[2] = null_vector; | |
3254 | } | |
3255 | else | |
3256 | registry[1] = null_vector; | |
c2f5bfd6 | 3257 | |
4007dd1c | 3258 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3259 | { |
35027d0c | 3260 | struct charset *encoding, *repertory; |
1701724c | 3261 | |
4007dd1c KH |
3262 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3263 | &encoding, &repertory) < 0) | |
35027d0c | 3264 | return Qnil; |
72d36834 KH |
3265 | if (repertory |
3266 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3267 | return Qnil; | |
35027d0c KH |
3268 | else if (c > encoding->max_char) |
3269 | return Qnil; | |
c2f5bfd6 KH |
3270 | } |
3271 | ||
4007dd1c | 3272 | work = Fcopy_font_spec (spec); |
227f12fa | 3273 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
35027d0c KH |
3274 | XSETFRAME (frame, f); |
3275 | size = AREF (spec, FONT_SIZE_INDEX); | |
1d1e1245 KH |
3276 | pixel_size = font_pixel_size (f, spec); |
3277 | if (pixel_size == 0) | |
3278 | { | |
3279 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3280 | ||
3281 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
3282 | } | |
4007dd1c KH |
3283 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3284 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3285 | if (! NILP (foundry[0])) | |
3286 | foundry[1] = null_vector; | |
3287 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
3288 | { | |
071132a9 KH |
3289 | val = attrs[LFACE_FOUNDRY_INDEX]; |
3290 | foundry[0] = font_intern_prop ((char *) SDATA (val), SBYTES (val), 1); | |
4007dd1c KH |
3291 | foundry[1] = Qnil; |
3292 | foundry[2] = null_vector; | |
3293 | } | |
3294 | else | |
3295 | foundry[0] = Qnil, foundry[1] = null_vector; | |
3296 | ||
22459668 KH |
3297 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3298 | if (! NILP (adstyle[0])) | |
3299 | adstyle[1] = null_vector; | |
3300 | else if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3301 | { | |
3302 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3303 | ||
3304 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3305 | { | |
3306 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3307 | adstyle[1] = Qnil; | |
3308 | adstyle[2] = null_vector; | |
3309 | } | |
3310 | else | |
3311 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3312 | } | |
3313 | else | |
3314 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3315 | ||
3316 | ||
4007dd1c KH |
3317 | val = AREF (work, FONT_FAMILY_INDEX); |
3318 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3319 | { |
3320 | val = attrs[LFACE_FAMILY_INDEX]; | |
3321 | val = font_intern_prop ((char *) SDATA (val), SBYTES (val), 1); | |
3322 | } | |
4007dd1c KH |
3323 | if (NILP (val)) |
3324 | { | |
3325 | family = alloca ((sizeof family[0]) * 2); | |
3326 | family[0] = Qnil; | |
3327 | family[1] = null_vector; /* terminator. */ | |
3328 | } | |
3329 | else | |
3330 | { | |
3331 | Lisp_Object alters | |
819ab95f | 3332 | = Fassoc_string (val, Vface_alternative_font_family_alist, |
7107c29e | 3333 | /* Font family names are case-sensitive under NS. */ |
819ab95f KH |
3334 | #ifndef HAVE_NS |
3335 | Qt | |
3336 | #else | |
3337 | Qnil | |
3338 | #endif | |
3339 | ); | |
4007dd1c KH |
3340 | |
3341 | if (! NILP (alters)) | |
3342 | { | |
3343 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
3344 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
3345 | family[i] = XCAR (alters); | |
3346 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3347 | family[i++] = Qnil; | |
3348 | family[i] = null_vector; | |
3349 | } | |
3350 | else | |
3351 | { | |
3352 | family = alloca ((sizeof family[0]) * 3); | |
3353 | i = 0; | |
3354 | family[i++] = val; | |
3355 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3356 | family[i++] = Qnil; | |
3357 | family[i] = null_vector; | |
3358 | } | |
3359 | } | |
3360 | ||
d0a47776 | 3361 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3362 | { |
d0a47776 KH |
3363 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3364 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3365 | { |
d0a47776 KH |
3366 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3367 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3368 | { | |
904a2e0e | 3369 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3370 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3371 | { | |
3372 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
3373 | entities = font_list_entities (frame, work); | |
72d36834 | 3374 | if (! NILP (entities)) |
988a7ddb KH |
3375 | { |
3376 | val = font_select_entity (frame, entities, | |
3377 | attrs, pixel_size, c); | |
3378 | if (! NILP (val)) | |
637fa988 | 3379 | return val; |
988a7ddb | 3380 | } |
22459668 | 3381 | } |
d0a47776 | 3382 | } |
4007dd1c | 3383 | } |
4007dd1c | 3384 | } |
d0a47776 | 3385 | return Qnil; |
1701724c | 3386 | } |
45eb10fb KH |
3387 | |
3388 | ||
c2f5bfd6 | 3389 | Lisp_Object |
971de7fb | 3390 | font_open_for_lface (FRAME_PTR f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3391 | { |
9331887d | 3392 | int size; |
c2f5bfd6 | 3393 | |
4007dd1c KH |
3394 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3395 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3396 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3397 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3398 | size = font_pixel_size (f, spec); |
733fd013 KH |
3399 | else |
3400 | { | |
50b0cd29 CY |
3401 | double pt; |
3402 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3403 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3404 | else | |
3405 | { | |
3406 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3407 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3408 | if (INTEGERP (height)) | |
3409 | pt = XINT (height); | |
3410 | else | |
3411 | abort(); /* We should never end up here. */ | |
3412 | } | |
733fd013 KH |
3413 | |
3414 | pt /= 10; | |
3415 | size = POINT_TO_PIXEL (pt, f->resy); | |
ed96cde8 AR |
3416 | #ifdef HAVE_NS |
3417 | if (size == 0) | |
3418 | { | |
3419 | Lisp_Object ffsize = get_frame_param(f, Qfontsize); | |
3420 | size = NUMBERP (ffsize) ? POINT_TO_PIXEL (XINT (ffsize), f->resy) : 0; | |
3421 | } | |
3422 | #endif | |
733fd013 | 3423 | } |
c2f5bfd6 KH |
3424 | return font_open_entity (f, entity, size); |
3425 | } | |
3426 | ||
45eb10fb | 3427 | |
35027d0c KH |
3428 | /* Find a font satisfying SPEC and best matching with face's |
3429 | attributes in ATTRS on FRAME, and return the opened | |
3430 | font-object. */ | |
45eb10fb | 3431 | |
35027d0c | 3432 | Lisp_Object |
971de7fb | 3433 | font_load_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3434 | { |
637fa988 | 3435 | Lisp_Object entity, name; |
ef18374f | 3436 | |
908567ef | 3437 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3438 | if (NILP (entity)) |
ef18374f | 3439 | { |
35027d0c KH |
3440 | /* No font is listed for SPEC, but each font-backend may have |
3441 | the different criteria about "font matching". So, try | |
3442 | it. */ | |
3443 | entity = font_matching_entity (f, attrs, spec); | |
3444 | if (NILP (entity)) | |
3445 | return Qnil; | |
c2f5bfd6 | 3446 | } |
637fa988 JD |
3447 | /* Don't loose the original name that was put in initially. We need |
3448 | it to re-apply the font when font parameters (like hinting or dpi) have | |
3449 | changed. */ | |
3450 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3451 | if (!NILP (entity)) |
3452 | { | |
42707278 JD |
3453 | name = Ffont_get (spec, QCuser_spec); |
3454 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3455 | } |
637fa988 | 3456 | return entity; |
c2f5bfd6 KH |
3457 | } |
3458 | ||
45eb10fb KH |
3459 | |
3460 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3461 | ||
c2f5bfd6 | 3462 | void |
971de7fb | 3463 | font_prepare_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3464 | { |
35027d0c KH |
3465 | if (face->font->driver->prepare_face) |
3466 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3467 | } |
3468 | ||
45eb10fb KH |
3469 | |
3470 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3471 | ||
c2f5bfd6 | 3472 | void |
971de7fb | 3473 | font_done_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3474 | { |
35027d0c KH |
3475 | if (face->font->driver->done_face) |
3476 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3477 | face->extra = NULL; |
3478 | } | |
3479 | ||
45eb10fb | 3480 | |
c50b7e98 KH |
3481 | /* Open a font matching with font-spec SPEC on frame F. If no proper |
3482 | font is found, return Qnil. */ | |
45eb10fb | 3483 | |
c2f5bfd6 | 3484 | Lisp_Object |
971de7fb | 3485 | font_open_by_spec (FRAME_PTR f, Lisp_Object spec) |
c2f5bfd6 | 3486 | { |
c50b7e98 | 3487 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3488 | |
4007dd1c KH |
3489 | /* We set up the default font-related attributes of a face to prefer |
3490 | a moderate font. */ | |
3491 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3492 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3493 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3494 | #ifndef HAVE_NS |
4007dd1c | 3495 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3496 | #else |
3497 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3498 | #endif | |
4007dd1c KH |
3499 | attrs[LFACE_FONT_INDEX] = Qnil; |
3500 | ||
3501 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3502 | } |
3503 | ||
3504 | ||
c50b7e98 KH |
3505 | /* Open a font matching with NAME on frame F. If no proper font is |
3506 | found, return Qnil. */ | |
3507 | ||
3508 | Lisp_Object | |
971de7fb | 3509 | font_open_by_name (FRAME_PTR f, char *name) |
c50b7e98 KH |
3510 | { |
3511 | Lisp_Object args[2]; | |
581e51e8 | 3512 | Lisp_Object spec, ret; |
c50b7e98 KH |
3513 | |
3514 | args[0] = QCname; | |
3515 | args[1] = make_unibyte_string (name, strlen (name)); | |
3516 | spec = Ffont_spec (2, args); | |
581e51e8 JD |
3517 | ret = font_open_by_spec (f, spec); |
3518 | /* Do not loose name originally put in. */ | |
8096a0ff | 3519 | if (!NILP (ret)) |
42707278 | 3520 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3521 | |
3522 | return ret; | |
c50b7e98 KH |
3523 | } |
3524 | ||
3525 | ||
c2f5bfd6 KH |
3526 | /* Register font-driver DRIVER. This function is used in two ways. |
3527 | ||
417a1b10 KH |
3528 | The first is with frame F non-NULL. In this case, make DRIVER |
3529 | available (but not yet activated) on F. All frame creaters | |
3530 | (e.g. Fx_create_frame) must call this function at least once with | |
3531 | an available font-driver. | |
c2f5bfd6 KH |
3532 | |
3533 | The second is with frame F NULL. In this case, DRIVER is globally | |
3534 | registered in the variable `font_driver_list'. All font-driver | |
3535 | implementations must call this function in its syms_of_XXXX | |
3536 | (e.g. syms_of_xfont). */ | |
3537 | ||
3538 | void | |
971de7fb | 3539 | register_font_driver (struct font_driver *driver, FRAME_PTR f) |
c2f5bfd6 KH |
3540 | { |
3541 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3542 | struct font_driver_list *prev, *list; | |
3543 | ||
3544 | if (f && ! driver->draw) | |
43a1d19b | 3545 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3546 | SDATA (SYMBOL_NAME (driver->type))); |
3547 | ||
3548 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3549 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3550 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3551 | ||
c115043b | 3552 | list = xmalloc (sizeof (struct font_driver_list)); |
417a1b10 | 3553 | list->on = 0; |
c2f5bfd6 KH |
3554 | list->driver = driver; |
3555 | list->next = NULL; | |
3556 | if (prev) | |
3557 | prev->next = list; | |
3558 | else if (f) | |
3559 | f->font_driver_list = list; | |
3560 | else | |
3561 | font_driver_list = list; | |
72606e45 KH |
3562 | if (! f) |
3563 | num_font_drivers++; | |
c2f5bfd6 KH |
3564 | } |
3565 | ||
2ed98482 | 3566 | void |
971de7fb | 3567 | free_font_driver_list (FRAME_PTR f) |
2ed98482 CY |
3568 | { |
3569 | struct font_driver_list *list, *next; | |
3570 | ||
3571 | for (list = f->font_driver_list; list; list = next) | |
3572 | { | |
3573 | next = list->next; | |
3574 | xfree (list); | |
3575 | } | |
3576 | f->font_driver_list = NULL; | |
3577 | } | |
3578 | ||
45eb10fb | 3579 | |
f697fff0 | 3580 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3581 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3582 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3583 | |
ca4da08a KH |
3584 | A caller must free all realized faces if any in advance. The |
3585 | return value is a list of font backends actually made used on | |
3586 | F. */ | |
e950d6f1 KH |
3587 | |
3588 | Lisp_Object | |
971de7fb | 3589 | font_update_drivers (FRAME_PTR f, Lisp_Object new_drivers) |
417a1b10 KH |
3590 | { |
3591 | Lisp_Object active_drivers = Qnil; | |
4007dd1c | 3592 | struct font_driver *driver; |
417a1b10 KH |
3593 | struct font_driver_list *list; |
3594 | ||
4007dd1c KH |
3595 | /* At first, turn off non-requested drivers, and turn on requested |
3596 | drivers. */ | |
f697fff0 | 3597 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c KH |
3598 | { |
3599 | driver = list->driver; | |
3600 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) | |
3601 | != list->on) | |
3602 | { | |
3603 | if (list->on) | |
3604 | { | |
3605 | if (driver->end_for_frame) | |
3606 | driver->end_for_frame (f); | |
3607 | font_finish_cache (f, driver); | |
3608 | list->on = 0; | |
3609 | } | |
3610 | else | |
3611 | { | |
3612 | if (! driver->start_for_frame | |
3613 | || driver->start_for_frame (f) == 0) | |
3614 | { | |
3615 | font_prepare_cache (f, driver); | |
3616 | list->on = 1; | |
3617 | } | |
3618 | } | |
3619 | } | |
3620 | } | |
3621 | ||
3622 | if (NILP (new_drivers)) | |
3623 | return Qnil; | |
3624 | ||
3625 | if (! EQ (new_drivers, Qt)) | |
3626 | { | |
3627 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3628 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3629 | Lisp_Object tail; |
3630 | int i; | |
3631 | ||
3632 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3633 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3634 | { | |
3635 | for (list = f->font_driver_list; list; list = list->next) | |
3636 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3637 | break; | |
3638 | if (list) | |
3639 | list_table[i++] = list; | |
3640 | } | |
3641 | for (list = f->font_driver_list; list; list = list->next) | |
3642 | if (! list->on) | |
6136b72f | 3643 | list_table[i++] = list; |
4007dd1c KH |
3644 | list_table[i] = NULL; |
3645 | ||
3306c6dc | 3646 | next = &f->font_driver_list; |
4007dd1c KH |
3647 | for (i = 0; list_table[i]; i++) |
3648 | { | |
3306c6dc AS |
3649 | *next = list_table[i]; |
3650 | next = &(*next)->next; | |
4007dd1c | 3651 | } |
3306c6dc | 3652 | *next = NULL; |
ba98e3a0 SM |
3653 | |
3654 | if (! f->font_driver_list->on) | |
3655 | { /* None of the drivers is enabled: enable them all. | |
3656 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3657 | and then use it under w32 or ns. */ | |
3658 | for (list = f->font_driver_list; list; list = list->next) | |
3659 | { | |
3660 | struct font_driver *driver = list->driver; | |
3661 | eassert (! list->on); | |
3662 | if (! driver->start_for_frame | |
3663 | || driver->start_for_frame (f) == 0) | |
3664 | { | |
3665 | font_prepare_cache (f, driver); | |
3666 | list->on = 1; | |
3667 | } | |
3668 | } | |
3669 | } | |
4007dd1c | 3670 | } |
417a1b10 | 3671 | |
4007dd1c KH |
3672 | for (list = f->font_driver_list; list; list = list->next) |
3673 | if (list->on) | |
3674 | active_drivers = nconc2 (active_drivers, | |
3675 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3676 | return active_drivers; |
417a1b10 KH |
3677 | } |
3678 | ||
f697fff0 | 3679 | int |
971de7fb | 3680 | font_put_frame_data (FRAME_PTR f, struct font_driver *driver, void *data) |
f697fff0 KH |
3681 | { |
3682 | struct font_data_list *list, *prev; | |
3683 | ||
3684 | for (prev = NULL, list = f->font_data_list; list; | |
3685 | prev = list, list = list->next) | |
3686 | if (list->driver == driver) | |
3687 | break; | |
3688 | if (! data) | |
3689 | { | |
3690 | if (list) | |
3691 | { | |
3692 | if (prev) | |
3693 | prev->next = list->next; | |
3694 | else | |
3695 | f->font_data_list = list->next; | |
973e7849 | 3696 | xfree (list); |
f697fff0 KH |
3697 | } |
3698 | return 0; | |
3699 | } | |
3700 | ||
3701 | if (! list) | |
3702 | { | |
c115043b | 3703 | list = xmalloc (sizeof (struct font_data_list)); |
f697fff0 KH |
3704 | list->driver = driver; |
3705 | list->next = f->font_data_list; | |
3706 | f->font_data_list = list; | |
3707 | } | |
3708 | list->data = data; | |
3709 | return 0; | |
3710 | } | |
3711 | ||
3712 | ||
3713 | void * | |
971de7fb | 3714 | font_get_frame_data (FRAME_PTR f, struct font_driver *driver) |
f697fff0 KH |
3715 | { |
3716 | struct font_data_list *list; | |
3717 | ||
3718 | for (list = f->font_data_list; list; list = list->next) | |
3719 | if (list->driver == driver) | |
3720 | break; | |
3721 | if (! list) | |
3722 | return NULL; | |
3723 | return list->data; | |
3724 | } | |
3725 | ||
417a1b10 | 3726 | |
45eb10fb | 3727 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3728 | POS in window W. If STRING is non-nil, it is a string containing C |
3729 | at index POS. If C is negative, get C from the current buffer or | |
3730 | STRING. */ | |
45eb10fb | 3731 | |
10d16101 | 3732 | Lisp_Object |
971de7fb | 3733 | font_at (int c, EMACS_INT pos, struct face *face, struct window *w, Lisp_Object string) |
10d16101 KH |
3734 | { |
3735 | FRAME_PTR f; | |
e3ee0340 | 3736 | int multibyte; |
35027d0c | 3737 | Lisp_Object font_object; |
e3ee0340 | 3738 | |
e500c47d KH |
3739 | multibyte = (NILP (string) |
3740 | ? ! NILP (current_buffer->enable_multibyte_characters) | |
3741 | : STRING_MULTIBYTE (string)); | |
e3ee0340 KH |
3742 | if (c < 0) |
3743 | { | |
3744 | if (NILP (string)) | |
3745 | { | |
e3ee0340 KH |
3746 | if (multibyte) |
3747 | { | |
3748 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3749 | ||
3750 | c = FETCH_CHAR (pos_byte); | |
3751 | } | |
3752 | else | |
3753 | c = FETCH_BYTE (pos); | |
3754 | } | |
3755 | else | |
3756 | { | |
3757 | unsigned char *str; | |
3758 | ||
3759 | multibyte = STRING_MULTIBYTE (string); | |
3760 | if (multibyte) | |
3761 | { | |
3762 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3763 | ||
3764 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3765 | c = STRING_CHAR (str); |
e3ee0340 KH |
3766 | } |
3767 | else | |
3768 | c = SDATA (string)[pos]; | |
3769 | } | |
3770 | } | |
10d16101 KH |
3771 | |
3772 | f = XFRAME (w->frame); | |
1385a806 KH |
3773 | if (! FRAME_WINDOW_P (f)) |
3774 | return Qnil; | |
10d16101 KH |
3775 | if (! face) |
3776 | { | |
e3ee0340 | 3777 | int face_id; |
0f8b27ea | 3778 | EMACS_INT endptr; |
e3ee0340 KH |
3779 | |
3780 | if (STRINGP (string)) | |
3781 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3782 | DEFAULT_FACE_ID, 0); |
3783 | else | |
e3ee0340 | 3784 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
6970f632 | 3785 | pos + 100, 0, -1); |
10d16101 KH |
3786 | face = FACE_FROM_ID (f, face_id); |
3787 | } | |
e3ee0340 KH |
3788 | if (multibyte) |
3789 | { | |
3790 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3791 | face = FACE_FROM_ID (f, face_id); | |
3792 | } | |
35027d0c | 3793 | if (! face->font) |
10d16101 | 3794 | return Qnil; |
35027d0c | 3795 | |
35027d0c KH |
3796 | XSETFONT (font_object, face->font); |
3797 | return font_object; | |
3798 | } | |
3799 | ||
3800 | ||
071132a9 KH |
3801 | #ifdef HAVE_WINDOW_SYSTEM |
3802 | ||
3803 | /* Check how many characters after POS (at most to *LIMIT) can be | |
3804 | displayed by the same font on the window W. FACE, if non-NULL, is | |
3805 | the face selected for the character at POS. If STRING is not nil, | |
3806 | it is the string to check instead of the current buffer. In that | |
3807 | case, FACE must be not NULL. | |
027a33c0 | 3808 | |
071132a9 KH |
3809 | The return value is the font-object for the character at POS. |
3810 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3811 | |
071132a9 KH |
3812 | It is assured that the current buffer (or STRING) is multibyte. */ |
3813 | ||
3814 | Lisp_Object | |
971de7fb | 3815 | font_range (EMACS_INT pos, EMACS_INT *limit, struct window *w, struct face *face, Lisp_Object string) |
35027d0c | 3816 | { |
0e5d7800 | 3817 | EMACS_INT pos_byte, ignore; |
35027d0c | 3818 | int c; |
071132a9 | 3819 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3820 | |
3821 | if (NILP (string)) | |
3822 | { | |
35027d0c | 3823 | pos_byte = CHAR_TO_BYTE (pos); |
071132a9 KH |
3824 | if (! face) |
3825 | { | |
3826 | int face_id; | |
3827 | ||
6970f632 CY |
3828 | face_id = face_at_buffer_position (w, pos, 0, 0, &ignore, |
3829 | *limit, 0, -1); | |
071132a9 KH |
3830 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
3831 | } | |
35027d0c KH |
3832 | } |
3833 | else | |
3834 | { | |
071132a9 | 3835 | font_assert (face); |
35027d0c KH |
3836 | pos_byte = string_char_to_byte (string, pos); |
3837 | } | |
3838 | ||
071132a9 | 3839 | while (pos < *limit) |
35027d0c | 3840 | { |
071132a9 | 3841 | Lisp_Object category; |
35027d0c KH |
3842 | |
3843 | if (NILP (string)) | |
3844 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3845 | else | |
3846 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 KH |
3847 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
3848 | if (EQ (category, QCf) | |
3849 | || CHAR_VARIATION_SELECTOR_P (c)) | |
3850 | continue; | |
071132a9 | 3851 | if (NILP (font_object)) |
35027d0c | 3852 | { |
071132a9 KH |
3853 | font_object = font_for_char (face, c, pos - 1, string); |
3854 | if (NILP (font_object)) | |
3855 | return Qnil; | |
35027d0c KH |
3856 | continue; |
3857 | } | |
0e5d7800 KH |
3858 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3859 | *limit = pos - 1; | |
35027d0c | 3860 | } |
071132a9 | 3861 | return font_object; |
10d16101 | 3862 | } |
071132a9 | 3863 | #endif |
10d16101 | 3864 | |
c2f5bfd6 KH |
3865 | \f |
3866 | /* Lisp API */ | |
3867 | ||
35027d0c | 3868 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3869 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3870 | Return nil otherwise. |
3871 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3872 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3873 | `font-object'. */) |
5842a27b | 3874 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3875 | { |
35027d0c KH |
3876 | if (NILP (extra_type)) |
3877 | return (FONTP (object) ? Qt : Qnil); | |
3878 | if (EQ (extra_type, Qfont_spec)) | |
3879 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3880 | if (EQ (extra_type, Qfont_entity)) | |
3881 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3882 | if (EQ (extra_type, Qfont_object)) | |
3883 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3884 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3885 | } |
3886 | ||
3887 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, | |
45eb10fb KH |
3888 | doc: /* Return a newly created font-spec with arguments as properties. |
3889 | ||
3890 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3891 | valid font property name listed below: | |
3892 | ||
3893 | `:family', `:weight', `:slant', `:width' | |
3894 | ||
3895 | They are the same as face attributes of the same name. See | |
51c01100 | 3896 | `set-face-attribute'. |
45eb10fb KH |
3897 | |
3898 | `:foundry' | |
3899 | ||
3900 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3901 | ||
3902 | `:adstyle' | |
3903 | ||
3904 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3905 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3906 | |
3907 | `:registry' | |
3908 | ||
3909 | VALUE must be a string or a symbol specifying the charset registry and | |
3910 | encoding of a font, e.g. ``iso8859-1''. | |
3911 | ||
3912 | `:size' | |
3913 | ||
3914 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3915 | specifying the font size. It specifies the font size in pixels (if |
3916 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3917 | |
3918 | `:name' | |
3919 | ||
7a18a178 | 3920 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3921 | |
3922 | `:script' | |
3923 | ||
3924 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3925 | support. It may be a symbol representing a subgroup of a script |
3926 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3927 | |
3928 | `:lang' | |
3929 | ||
3930 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3931 | e.g. `ja'. | |
3932 | ||
3933 | `:otf' | |
3934 | ||
3935 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3936 | required OpenType features. | |
3937 | ||
3938 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3939 | LANGSYS-TAG: OpenType language system tag symbol, | |
3940 | or nil for the default language system. | |
3941 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3942 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3943 | ||
3944 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3945 | must not have any of the remaining elements. | |
3946 | ||
3947 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
22f79966 | 3948 | be an OpenType font, and whose GPOS table of `thai' script's default |
c423ecca KH |
3949 | language system must contain `mark' feature. |
3950 | ||
ba3de0e8 | 3951 | usage: (font-spec ARGS...) */) |
5842a27b | 3952 | (int nargs, Lisp_Object *args) |
c2f5bfd6 | 3953 | { |
35027d0c | 3954 | Lisp_Object spec = font_make_spec (); |
c2f5bfd6 KH |
3955 | int i; |
3956 | ||
3957 | for (i = 0; i < nargs; i += 2) | |
3958 | { | |
cccd42d5 KH |
3959 | Lisp_Object key = args[i], val; |
3960 | ||
3961 | CHECK_SYMBOL (key); | |
3962 | if (i + 1 >= nargs) | |
3963 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3964 | val = args[i + 1]; | |
c2f5bfd6 | 3965 | |
35027d0c KH |
3966 | if (EQ (key, QCname)) |
3967 | { | |
3968 | CHECK_STRING (val); | |
3969 | font_parse_name ((char *) SDATA (val), spec); | |
3970 | font_put_extra (spec, key, val); | |
3971 | } | |
c2f5bfd6 | 3972 | else |
4485a28e | 3973 | { |
35027d0c KH |
3974 | int idx = get_font_prop_index (key); |
3975 | ||
3976 | if (idx >= 0) | |
ec6fe57c | 3977 | { |
35027d0c KH |
3978 | val = font_prop_validate (idx, Qnil, val); |
3979 | if (idx < FONT_EXTRA_INDEX) | |
3980 | ASET (spec, idx, val); | |
3981 | else | |
3982 | font_put_extra (spec, key, val); | |
ec6fe57c | 3983 | } |
35027d0c KH |
3984 | else |
3985 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3986 | } |
e950d6f1 | 3987 | } |
c2f5bfd6 KH |
3988 | return spec; |
3989 | } | |
3990 | ||
35027d0c KH |
3991 | DEFUN ("copy-font-spec", Fcopy_font_spec, Scopy_font_spec, 1, 1, 0, |
3992 | doc: /* Return a copy of FONT as a font-spec. */) | |
5842a27b | 3993 | (Lisp_Object font) |
35027d0c | 3994 | { |
d26424c5 | 3995 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3996 | int i; |
3997 | ||
3998 | CHECK_FONT (font); | |
3999 | new_spec = font_make_spec (); | |
4000 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
4001 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 4002 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
4003 | /* We must remove :font-entity property. */ |
4004 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
4005 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
4006 | { | |
4007 | if (NILP (prev)) | |
4008 | extra = XCDR (extra); | |
4009 | else | |
4010 | XSETCDR (prev, XCDR (tail)); | |
4011 | break; | |
4012 | } | |
35027d0c KH |
4013 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
4014 | return new_spec; | |
4015 | } | |
4016 | ||
4017 | DEFUN ("merge-font-spec", Fmerge_font_spec, Smerge_font_spec, 2, 2, 0, | |
4018 | doc: /* Merge font-specs FROM and TO, and return a new font-spec. | |
4019 | Every specified properties in FROM override the corresponding | |
4020 | properties in TO. */) | |
5842a27b | 4021 | (Lisp_Object from, Lisp_Object to) |
35027d0c KH |
4022 | { |
4023 | Lisp_Object extra, tail; | |
4024 | int i; | |
4025 | ||
4026 | CHECK_FONT (from); | |
4027 | CHECK_FONT (to); | |
4028 | to = Fcopy_font_spec (to); | |
4029 | for (i = 0; i < FONT_EXTRA_INDEX; i++) | |
4030 | ASET (to, i, AREF (from, i)); | |
4031 | extra = AREF (to, FONT_EXTRA_INDEX); | |
4032 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
4033 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
4034 | { | |
4035 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
4036 | ||
4037 | if (! NILP (slot)) | |
4038 | XSETCDR (slot, XCDR (XCAR (tail))); | |
4039 | else | |
4040 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
4041 | } | |
4042 | ASET (to, FONT_EXTRA_INDEX, extra); | |
4043 | return to; | |
4044 | } | |
c2f5bfd6 KH |
4045 | |
4046 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, | |
45eb10fb | 4047 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 4048 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 4049 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 4050 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 4051 | :size, :name, :script, :otf |
5bdd4dd2 | 4052 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
4053 | In addition, if FONT is a font-entity or a font-object, values of |
4054 | :script and :otf are different from those of a font-spec as below: | |
4055 | ||
4056 | The value of :script may be a list of scripts that are supported by the font. | |
4057 | ||
4058 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
4059 | representing the OpenType features supported by the font by this form: | |
4060 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4061 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
4062 | Layout tags. */) | |
5842a27b | 4063 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 4064 | { |
35027d0c | 4065 | int idx; |
a7840ffb | 4066 | Lisp_Object val; |
c2f5bfd6 | 4067 | |
35027d0c KH |
4068 | CHECK_FONT (font); |
4069 | CHECK_SYMBOL (key); | |
e80e09b4 | 4070 | |
35027d0c | 4071 | idx = get_font_prop_index (key); |
2babb359 KH |
4072 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
4073 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 4074 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 4075 | return AREF (font, idx); |
a7840ffb KH |
4076 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
4077 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
4078 | { | |
4079 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 4080 | |
f6c1c771 KH |
4081 | if (fontp->driver->otf_capability) |
4082 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 4083 | else |
f6c1c771 KH |
4084 | val = Fcons (Qnil, Qnil); |
4085 | font_put_extra (font, QCotf, val); | |
a7840ffb KH |
4086 | } |
4087 | else | |
4088 | val = Fcdr (val); | |
4089 | return val; | |
c2f5bfd6 KH |
4090 | } |
4091 | ||
51cf11be AS |
4092 | #ifdef HAVE_WINDOW_SYSTEM |
4093 | ||
b1868a1a CY |
4094 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
4095 | doc: /* Return a plist of face attributes generated by FONT. | |
4096 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
4097 | The return value is a list of the form | |
4098 | ||
6f568955 | 4099 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 4100 | |
48105a6a | 4101 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
4102 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
4103 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 4104 | |
48105a6a JB |
4105 | The optional argument FRAME specifies the frame that the face attributes |
4106 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 4107 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a CY |
4108 | { |
4109 | struct frame *f; | |
4110 | Lisp_Object plist[10]; | |
4111 | Lisp_Object val; | |
5989ba2f | 4112 | int n = 0; |
b1868a1a CY |
4113 | |
4114 | if (NILP (frame)) | |
4115 | frame = selected_frame; | |
4116 | CHECK_LIVE_FRAME (frame); | |
4117 | f = XFRAME (frame); | |
4118 | ||
4119 | if (STRINGP (font)) | |
4120 | { | |
4121 | int fontset = fs_query_fontset (font, 0); | |
4122 | Lisp_Object name = font; | |
4123 | if (fontset >= 0) | |
4124 | font = fontset_ascii (fontset); | |
4125 | font = font_spec_from_name (name); | |
4126 | if (! FONTP (font)) | |
4127 | signal_error ("Invalid font name", name); | |
4128 | } | |
4129 | else if (! FONTP (font)) | |
4130 | signal_error ("Invalid font object", font); | |
4131 | ||
b1868a1a | 4132 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4133 | if (! NILP (val)) |
4134 | { | |
4135 | plist[n++] = QCfamily; | |
4136 | plist[n++] = SYMBOL_NAME (val); | |
4137 | } | |
b1868a1a | 4138 | |
b1868a1a CY |
4139 | val = AREF (font, FONT_SIZE_INDEX); |
4140 | if (INTEGERP (val)) | |
4141 | { | |
4142 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
4143 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy; | |
5989ba2f | 4144 | plist[n++] = QCheight; |
c3bb5465 | 4145 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4146 | } |
4147 | else if (FLOATP (val)) | |
5989ba2f CY |
4148 | { |
4149 | plist[n++] = QCheight; | |
4150 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4151 | } | |
b1868a1a | 4152 | |
b1868a1a | 4153 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4154 | if (! NILP (val)) |
4155 | { | |
4156 | plist[n++] = QCweight; | |
4157 | plist[n++] = val; | |
4158 | } | |
b1868a1a | 4159 | |
b1868a1a | 4160 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4161 | if (! NILP (val)) |
4162 | { | |
4163 | plist[n++] = QCslant; | |
4164 | plist[n++] = val; | |
4165 | } | |
b1868a1a | 4166 | |
b1868a1a | 4167 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4168 | if (! NILP (val)) |
4169 | { | |
4170 | plist[n++] = QCwidth; | |
4171 | plist[n++] = val; | |
4172 | } | |
b1868a1a | 4173 | |
5989ba2f | 4174 | return Flist (n, plist); |
b1868a1a | 4175 | } |
c2f5bfd6 | 4176 | |
51cf11be AS |
4177 | #endif |
4178 | ||
c2f5bfd6 | 4179 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4180 | doc: /* Set one property of FONT: give property KEY value VAL. |
4181 | FONT is a font-spec, a font-entity, or a font-object. | |
4182 | ||
4183 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4184 | accepted by the function `font-spec' (which see), VAL must be what | |
4185 | allowed in `font-spec'. | |
4186 | ||
4187 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4188 | accepted by `font-spec'. */) | |
e1ffae3b | 4189 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4190 | { |
35027d0c | 4191 | int idx; |
c2f5bfd6 | 4192 | |
35027d0c KH |
4193 | idx = get_font_prop_index (prop); |
4194 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4195 | { |
4196 | CHECK_FONT_SPEC (font); | |
4197 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4198 | } | |
c2f5bfd6 | 4199 | else |
a7840ffb KH |
4200 | { |
4201 | if (EQ (prop, QCname) | |
4202 | || EQ (prop, QCscript) | |
4203 | || EQ (prop, QClang) | |
4204 | || EQ (prop, QCotf)) | |
4205 | CHECK_FONT_SPEC (font); | |
4206 | else | |
4207 | CHECK_FONT (font); | |
4208 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4209 | } | |
c2f5bfd6 KH |
4210 | return val; |
4211 | } | |
4212 | ||
4213 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, | |
4214 | doc: /* List available fonts matching FONT-SPEC on the current frame. | |
4215 | Optional 2nd argument FRAME specifies the target frame. | |
4216 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4217 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4218 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4219 | how close they are to PREFER. */) |
5842a27b | 4220 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4221 | { |
72d36834 KH |
4222 | Lisp_Object vec, list; |
4223 | int n = 0; | |
c2f5bfd6 KH |
4224 | |
4225 | if (NILP (frame)) | |
4226 | frame = selected_frame; | |
4227 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 4228 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4229 | if (! NILP (num)) |
4230 | { | |
4231 | CHECK_NUMBER (num); | |
4232 | n = XINT (num); | |
4233 | if (n <= 0) | |
4234 | return Qnil; | |
4235 | } | |
4236 | if (! NILP (prefer)) | |
35027d0c | 4237 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4238 | |
72d36834 KH |
4239 | list = font_list_entities (frame, font_spec); |
4240 | if (NILP (list)) | |
c2f5bfd6 | 4241 | return Qnil; |
72d36834 KH |
4242 | if (NILP (XCDR (list)) |
4243 | && ASIZE (XCAR (list)) == 1) | |
4244 | return Fcons (AREF (XCAR (list), 0), Qnil); | |
c2f5bfd6 KH |
4245 | |
4246 | if (! NILP (prefer)) | |
72d36834 KH |
4247 | vec = font_sort_entities (list, prefer, frame, 0); |
4248 | else | |
4249 | vec = font_vconcat_entity_vectors (list); | |
4250 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4251 | { |
72d36834 | 4252 | Lisp_Object args[2]; |
c2f5bfd6 | 4253 | |
72d36834 KH |
4254 | args[0] = vec; |
4255 | args[1] = Qnil; | |
4256 | list = Fappend (2, args); | |
4257 | } | |
4258 | else | |
4259 | { | |
4260 | for (list = Qnil, n--; n >= 0; n--) | |
4261 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4262 | } |
4263 | return list; | |
4264 | } | |
4265 | ||
35027d0c | 4266 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4267 | doc: /* List available font families on the current frame. |
027a33c0 | 4268 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
5842a27b | 4269 | (Lisp_Object frame) |
c2f5bfd6 KH |
4270 | { |
4271 | FRAME_PTR f; | |
4272 | struct font_driver_list *driver_list; | |
4273 | Lisp_Object list; | |
4274 | ||
4275 | if (NILP (frame)) | |
4276 | frame = selected_frame; | |
4277 | CHECK_LIVE_FRAME (frame); | |
4278 | f = XFRAME (frame); | |
4279 | list = Qnil; | |
4280 | for (driver_list = f->font_driver_list; driver_list; | |
4281 | driver_list = driver_list->next) | |
4282 | if (driver_list->driver->list_family) | |
4283 | { | |
4284 | Lisp_Object val = driver_list->driver->list_family (frame); | |
13bf758b | 4285 | Lisp_Object tail = list; |
c2f5bfd6 | 4286 | |
13bf758b CY |
4287 | for (; CONSP (val); val = XCDR (val)) |
4288 | if (NILP (Fmemq (XCAR (val), tail)) | |
4289 | && SYMBOLP (XCAR (val))) | |
4290 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4291 | } |
4292 | return list; | |
4293 | } | |
4294 | ||
4295 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4296 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4297 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4298 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4299 | { |
4300 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4301 | ||
4302 | if (CONSP (val)) | |
4303 | val = XCAR (val); | |
4304 | return val; | |
4305 | } | |
4306 | ||
d0ab1ebe | 4307 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4308 | doc: /* Return XLFD name of FONT. |
4309 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4310 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4311 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
4312 | the consecutive wildcards are folded to one. */) | |
5842a27b | 4313 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4314 | { |
4315 | char name[256]; | |
4316 | int pixel_size = 0; | |
4317 | ||
35027d0c KH |
4318 | CHECK_FONT (font); |
4319 | ||
4320 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4321 | { |
35027d0c | 4322 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4323 | |
35027d0c KH |
4324 | if (STRINGP (font_name) |
4325 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4326 | { |
4327 | if (NILP (fold_wildcards)) | |
4328 | return font_name; | |
4329 | strcpy (name, (char *) SDATA (font_name)); | |
4330 | goto done; | |
4331 | } | |
35027d0c | 4332 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4333 | } |
c2f5bfd6 KH |
4334 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
4335 | return Qnil; | |
d0ab1ebe KH |
4336 | done: |
4337 | if (! NILP (fold_wildcards)) | |
4338 | { | |
4339 | char *p0 = name, *p1; | |
4340 | ||
4341 | while ((p1 = strstr (p0, "-*-*"))) | |
4342 | { | |
4343 | strcpy (p1, p1 + 2); | |
4344 | p0 = p1; | |
4345 | } | |
4346 | } | |
4347 | ||
c2f5bfd6 KH |
4348 | return build_string (name); |
4349 | } | |
4350 | ||
4351 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
4352 | doc: /* Clear font cache. */) | |
5842a27b | 4353 | (void) |
c2f5bfd6 KH |
4354 | { |
4355 | Lisp_Object list, frame; | |
4356 | ||
4357 | FOR_EACH_FRAME (list, frame) | |
4358 | { | |
4359 | FRAME_PTR f = XFRAME (frame); | |
4360 | struct font_driver_list *driver_list = f->font_driver_list; | |
4361 | ||
4362 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
4363 | if (driver_list->on) |
4364 | { | |
ca4da08a | 4365 | Lisp_Object cache = driver_list->driver->get_cache (f); |
7a6f7fea | 4366 | Lisp_Object val, tmp; |
51c01100 | 4367 | |
ca4da08a | 4368 | val = XCDR (cache); |
43c0454d KH |
4369 | while (! NILP (val) |
4370 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 4371 | val = XCDR (val); |
d0ab1ebe | 4372 | font_assert (! NILP (val)); |
7a6f7fea AS |
4373 | tmp = XCDR (XCAR (val)); |
4374 | if (XINT (XCAR (tmp)) == 0) | |
417a1b10 | 4375 | { |
ca4da08a KH |
4376 | font_clear_cache (f, XCAR (val), driver_list->driver); |
4377 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 4378 | } |
417a1b10 | 4379 | } |
c2f5bfd6 KH |
4380 | } |
4381 | ||
4382 | return Qnil; | |
4383 | } | |
4384 | ||
071132a9 KH |
4385 | \f |
4386 | void | |
971de7fb | 4387 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4388 | { |
071132a9 | 4389 | struct font *font = XFONT_OBJECT (font_object); |
f62ab7c5 EZ |
4390 | unsigned code; |
4391 | /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */ | |
4392 | EMACS_INT ecode = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); | |
071132a9 | 4393 | struct font_metrics metrics; |
c2f5bfd6 | 4394 | |
f62ab7c5 EZ |
4395 | LGLYPH_SET_CODE (glyph, ecode); |
4396 | code = ecode; | |
071132a9 KH |
4397 | font->driver->text_extents (font, &code, 1, &metrics); |
4398 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4399 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4400 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4401 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4402 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4403 | } |
4404 | ||
c2f5bfd6 | 4405 | |
071132a9 KH |
4406 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4407 | doc: /* Shape the glyph-string GSTRING. | |
4408 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4409 | to get the correct visual image of character sequences set in the | |
4410 | header of the glyph-string. | |
1701724c | 4411 | |
071132a9 KH |
4412 | If the shaping was successful, the value is GSTRING itself or a newly |
4413 | created glyph-string. Otherwise, the value is nil. */) | |
5842a27b | 4414 | (Lisp_Object gstring) |
1701724c KH |
4415 | { |
4416 | struct font *font; | |
071132a9 | 4417 | Lisp_Object font_object, n, glyph; |
fc3a285e | 4418 | int i, j, from, to; |
ba3de0e8 | 4419 | |
071132a9 KH |
4420 | if (! composition_gstring_p (gstring)) |
4421 | signal_error ("Invalid glyph-string: ", gstring); | |
4422 | if (! NILP (LGSTRING_ID (gstring))) | |
4423 | return gstring; | |
4424 | font_object = LGSTRING_FONT (gstring); | |
4425 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4426 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4427 | if (! font->driver->shape) |
4428 | return Qnil; | |
4429 | ||
40fb53d6 KH |
4430 | /* Try at most three times with larger gstring each time. */ |
4431 | for (i = 0; i < 3; i++) | |
4432 | { | |
40fb53d6 KH |
4433 | n = font->driver->shape (gstring); |
4434 | if (INTEGERP (n)) | |
4435 | break; | |
071132a9 KH |
4436 | gstring = larger_vector (gstring, |
4437 | ASIZE (gstring) + LGSTRING_GLYPH_LEN (gstring), | |
4438 | Qnil); | |
40fb53d6 | 4439 | } |
071132a9 | 4440 | if (i == 3 || XINT (n) == 0) |
1701724c | 4441 | return Qnil; |
dfe3c90f KH |
4442 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4443 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4444 | |
071132a9 | 4445 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4446 | from = LGLYPH_FROM (glyph); |
4447 | to = LGLYPH_TO (glyph); | |
4448 | for (i = 1, j = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 KH |
4449 | { |
4450 | Lisp_Object this = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 4451 | |
071132a9 KH |
4452 | if (NILP (this)) |
4453 | break; | |
4454 | if (NILP (LGLYPH_ADJUSTMENT (this))) | |
fc3a285e KH |
4455 | { |
4456 | if (j < i - 1) | |
4457 | for (; j < i; j++) | |
4458 | { | |
4459 | glyph = LGSTRING_GLYPH (gstring, j); | |
4460 | LGLYPH_SET_FROM (glyph, from); | |
4461 | LGLYPH_SET_TO (glyph, to); | |
4462 | } | |
4463 | from = LGLYPH_FROM (this); | |
4464 | to = LGLYPH_TO (this); | |
4465 | j = i; | |
4466 | } | |
071132a9 | 4467 | else |
b2937119 | 4468 | { |
fc3a285e KH |
4469 | if (from > LGLYPH_FROM (this)) |
4470 | from = LGLYPH_FROM (this); | |
4471 | if (to < LGLYPH_TO (this)) | |
4472 | to = LGLYPH_TO (this); | |
b2937119 | 4473 | } |
10d16101 | 4474 | } |
fc3a285e KH |
4475 | if (j < i - 1) |
4476 | for (; j < i; j++) | |
4477 | { | |
4478 | glyph = LGSTRING_GLYPH (gstring, j); | |
4479 | LGLYPH_SET_FROM (glyph, from); | |
4480 | LGLYPH_SET_TO (glyph, to); | |
4481 | } | |
071132a9 | 4482 | return composition_gstring_put_cache (gstring, XINT (n)); |
c2f5bfd6 KH |
4483 | } |
4484 | ||
78a2f9cd KH |
4485 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4486 | 2, 2, 0, | |
4487 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4488 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4489 | where | |
4490 | VARIATION-SELECTOR is a chracter code of variation selection | |
4491 | (#xFE00..#xFE0F or #xE0100..#xE01EF) | |
4492 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4493 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4494 | { |
4495 | unsigned variations[256]; | |
4496 | struct font *font; | |
4497 | int i, n; | |
4498 | Lisp_Object val; | |
4499 | ||
4500 | CHECK_FONT_OBJECT (font_object); | |
4501 | CHECK_CHARACTER (character); | |
4502 | font = XFONT_OBJECT (font_object); | |
4503 | if (! font->driver->get_variation_glyphs) | |
4504 | return Qnil; | |
4505 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4506 | if (! n) | |
4507 | return Qnil; | |
4508 | val = Qnil; | |
4509 | for (i = 0; i < 255; i++) | |
4510 | if (variations[i]) | |
4511 | { | |
4512 | Lisp_Object code; | |
4513 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); | |
b60861e6 GM |
4514 | /* Stops GCC whining about limited range of data type. */ |
4515 | EMACS_INT var = variations[i]; | |
78a2f9cd | 4516 | |
b60861e6 | 4517 | if (var > MOST_POSITIVE_FIXNUM) |
78a2f9cd KH |
4518 | code = Fcons (make_number ((variations[i]) >> 16), |
4519 | make_number ((variations[i]) & 0xFFFF)); | |
4520 | else | |
4521 | code = make_number (variations[i]); | |
4522 | val = Fcons (Fcons (make_number (vs), code), val); | |
4523 | } | |
4524 | return val; | |
4525 | } | |
4526 | ||
6a3dadd2 KH |
4527 | #if 0 |
4528 | ||
733fd013 KH |
4529 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
4530 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. | |
51c01100 | 4531 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4532 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4533 | where |
4534 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4535 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4536 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4537 | |
4538 | If LANGYS is nil, the default langsys is selected. | |
4539 | ||
51c01100 JB |
4540 | The features are applied in the order they appear in the list. The |
4541 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4542 | list, and the remaining features are ignored. For instance, (vatu |
4543 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4544 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4545 | |
4546 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4547 | the glyph-string GSTRING-IN. |
e80e09b4 | 4548 | |
51c01100 | 4549 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4550 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4551 | this case, the value is the number of produced glyphs. | |
4552 | ||
4553 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4554 | the value is 0. | |
4555 | ||
51c01100 | 4556 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4557 | produced in GSTRING-OUT, and the value is nil. |
4558 | ||
4559 | See the documentation of `font-make-gstring' for the format of | |
4560 | glyph-string. */) | |
5842a27b | 4561 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4562 | { |
4563 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4564 | Lisp_Object val; |
4565 | struct font *font; | |
e80e09b4 KH |
4566 | int len, num; |
4567 | ||
733fd013 | 4568 | check_otf_features (otf_features); |
35027d0c KH |
4569 | CHECK_FONT_OBJECT (font_object); |
4570 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4571 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4572 | error ("Font backend %s can't drive OpenType GSUB table", |
4573 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4574 | CHECK_CONS (otf_features); |
4575 | CHECK_SYMBOL (XCAR (otf_features)); | |
4576 | val = XCDR (otf_features); | |
4577 | CHECK_SYMBOL (XCAR (val)); | |
4578 | val = XCDR (otf_features); | |
4579 | if (! NILP (val)) | |
4580 | CHECK_CONS (val); | |
e80e09b4 KH |
4581 | len = check_gstring (gstring_in); |
4582 | CHECK_VECTOR (gstring_out); | |
4583 | CHECK_NATNUM (from); | |
4584 | CHECK_NATNUM (to); | |
4585 | CHECK_NATNUM (index); | |
4586 | ||
4587 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4588 | args_out_of_range_3 (from, to, make_number (len)); | |
4589 | if (XINT (index) >= ASIZE (gstring_out)) | |
4590 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4591 | num = font->driver->otf_drive (font, otf_features, |
4592 | gstring_in, XINT (from), XINT (to), | |
4593 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4594 | if (num < 0) |
4595 | return Qnil; | |
4596 | return make_number (num); | |
4597 | } | |
4598 | ||
e80e09b4 KH |
4599 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
4600 | 3, 3, 0, | |
4601 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4602 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4603 | in this format: |
4604 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4605 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4606 | |
4607 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4608 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4609 | character code corresponding to the glyph or nil if there's no | |
4610 | corresponding character. */) | |
5842a27b | 4611 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4612 | { |
4613 | struct font *font; | |
4614 | Lisp_Object gstring_in, gstring_out, g; | |
4615 | Lisp_Object alternates; | |
4616 | int i, num; | |
4617 | ||
4618 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4619 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4620 | error ("Font backend %s can't drive OpenType GSUB table", |
4621 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4622 | CHECK_CHARACTER (character); |
733fd013 | 4623 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4624 | |
4625 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4626 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4627 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4628 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4629 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4630 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4631 | gstring_out = Ffont_make_gstring (font_object, |
4632 | make_number (ASIZE (gstring_out) * 2)); | |
4633 | alternates = Qnil; | |
4634 | for (i = 0; i < num; i++) | |
4635 | { | |
4636 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4637 | int c = LGLYPH_CHAR (g); |
4638 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4639 | |
4640 | alternates = Fcons (Fcons (make_number (code), | |
4641 | c > 0 ? make_number (c) : Qnil), | |
4642 | alternates); | |
4643 | } | |
4644 | return Fnreverse (alternates); | |
4645 | } | |
6a3dadd2 | 4646 | #endif /* 0 */ |
c2f5bfd6 KH |
4647 | |
4648 | #ifdef FONT_DEBUG | |
4649 | ||
4650 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4651 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4652 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 KH |
4653 | { |
4654 | int isize; | |
4655 | ||
4656 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4657 | if (NILP (frame)) |
4658 | frame = selected_frame; | |
4659 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4660 | |
35027d0c KH |
4661 | if (NILP (size)) |
4662 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4663 | else | |
4664 | { | |
4665 | CHECK_NUMBER_OR_FLOAT (size); | |
4666 | if (FLOATP (size)) | |
d03b5cdb | 4667 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), XFRAME (frame)->resy); |
35027d0c KH |
4668 | else |
4669 | isize = XINT (size); | |
4670 | if (isize == 0) | |
4671 | isize = 120; | |
4672 | } | |
c2f5bfd6 KH |
4673 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4674 | } | |
4675 | ||
4676 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4677 | doc: /* Close FONT-OBJECT. */) | |
5842a27b | 4678 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4679 | { |
4680 | CHECK_FONT_OBJECT (font_object); | |
4681 | if (NILP (frame)) | |
4682 | frame = selected_frame; | |
4683 | CHECK_LIVE_FRAME (frame); | |
4684 | font_close_object (XFRAME (frame), font_object); | |
4685 | return Qnil; | |
4686 | } | |
4687 | ||
4688 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4689 | doc: /* Return information about FONT-OBJECT. |
4690 | The value is a vector: | |
4691 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4692 | CAPABILITY ] |
e80e09b4 KH |
4693 | |
4694 | NAME is a string of the font name (or nil if the font backend doesn't | |
4695 | provide a name). | |
4696 | ||
4697 | FILENAME is a string of the font file (or nil if the font backend | |
4698 | doesn't provide a file name). | |
4699 | ||
4700 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4701 | ||
027a33c0 | 4702 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4703 | |
4704 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4705 | pixels. |
e80e09b4 | 4706 | |
e0708580 KH |
4707 | CAPABILITY is a list whose first element is a symbol representing the |
4708 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4709 | remaining elements describe the details of the font capability. |
e0708580 KH |
4710 | |
4711 | If the font is OpenType font, the form of the list is | |
4712 | \(opentype GSUB GPOS) | |
4713 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4714 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4715 | lists of the format: | |
4716 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4717 | ||
4718 | If the font is not OpenType font, currently the length of the form is | |
4719 | one. | |
e80e09b4 KH |
4720 | |
4721 | SCRIPT is a symbol representing OpenType script tag. | |
4722 | ||
4723 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4724 | representing the default langsys. | |
4725 | ||
51c01100 | 4726 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4727 | |
51c01100 | 4728 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4729 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4730 | { |
4731 | struct font *font; | |
4732 | Lisp_Object val; | |
4733 | ||
4734 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4735 | ||
4736 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4737 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4738 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4739 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4740 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4741 | ASET (val, 4, make_number (font->ascent)); |
4742 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4743 | ASET (val, 6, make_number (font->space_width)); |
4744 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4745 | if (font->driver->otf_capability) |
e0708580 | 4746 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4747 | return val; |
4748 | } | |
4749 | ||
a7840ffb KH |
4750 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4751 | doc: | |
4752 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4753 | FROM and TO are positions (integers or markers) specifying a region | |
4754 | of the current buffer. | |
4755 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4756 | vector containing the target characters. | |
4757 | ||
4758 | Each element is a vector containing information of a glyph in this format: | |
4759 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4760 | where | |
4761 | FROM is an index numbers of a character the glyph corresponds to. | |
4762 | TO is the same as FROM. | |
4763 | C is the character of the glyph. | |
4764 | CODE is the glyph-code of C in FONT-OBJECT. | |
4765 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4766 | ADJUSTMENT is always nil. | |
4767 | If FONT-OBJECT doesn't have a glyph for a character, | |
4768 | the corresponding element is nil. */) | |
e1ffae3b KH |
4769 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4770 | Lisp_Object object) | |
c2f5bfd6 KH |
4771 | { |
4772 | struct font *font; | |
a7840ffb KH |
4773 | int i, len, c; |
4774 | Lisp_Object *chars, vec; | |
4775 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4776 | |
4777 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4778 | if (NILP (object)) |
4779 | { | |
4780 | EMACS_INT charpos, bytepos; | |
4781 | ||
4782 | validate_region (&from, &to); | |
4783 | if (EQ (from, to)) | |
4784 | return Qnil; | |
4785 | len = XFASTINT (to) - XFASTINT (from); | |
4786 | SAFE_ALLOCA_LISP (chars, len); | |
4787 | charpos = XFASTINT (from); | |
4788 | bytepos = CHAR_TO_BYTE (charpos); | |
4789 | for (i = 0; charpos < XFASTINT (to); i++) | |
4790 | { | |
4791 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); | |
4792 | chars[i] = make_number (c); | |
4793 | } | |
4794 | } | |
4795 | else if (STRINGP (object)) | |
4796 | { | |
4797 | const unsigned char *p; | |
4798 | ||
4799 | CHECK_NUMBER (from); | |
4800 | CHECK_NUMBER (to); | |
4801 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4802 | || XINT (to) > SCHARS (object)) | |
4803 | args_out_of_range_3 (object, from, to); | |
4804 | if (EQ (from, to)) | |
4805 | return Qnil; | |
4806 | len = XFASTINT (to) - XFASTINT (from); | |
4807 | SAFE_ALLOCA_LISP (chars, len); | |
4808 | p = SDATA (object); | |
4809 | if (STRING_MULTIBYTE (object)) | |
4810 | for (i = 0; i < len; i++) | |
4811 | { | |
4812 | c = STRING_CHAR_ADVANCE (p); | |
4813 | chars[i] = make_number (c); | |
4814 | } | |
4815 | else | |
4816 | for (i = 0; i < len; i++) | |
4817 | chars[i] = make_number (p[i]); | |
4818 | } | |
4819 | else | |
4820 | { | |
4821 | CHECK_VECTOR (object); | |
4822 | CHECK_NUMBER (from); | |
4823 | CHECK_NUMBER (to); | |
4824 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4825 | || XINT (to) > ASIZE (object)) | |
4826 | args_out_of_range_3 (object, from, to); | |
4827 | if (EQ (from, to)) | |
4828 | return Qnil; | |
4829 | len = XFASTINT (to) - XFASTINT (from); | |
4830 | for (i = 0; i < len; i++) | |
4831 | { | |
4832 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4833 | CHECK_CHARACTER (elt); | |
4834 | } | |
4835 | chars = &(AREF (object, XFASTINT (from))); | |
4836 | } | |
4837 | ||
c2f5bfd6 KH |
4838 | vec = Fmake_vector (make_number (len), Qnil); |
4839 | for (i = 0; i < len; i++) | |
4840 | { | |
a7840ffb KH |
4841 | Lisp_Object g; |
4842 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 | 4843 | unsigned code; |
2930d117 | 4844 | EMACS_INT cod; |
c2f5bfd6 KH |
4845 | struct font_metrics metrics; |
4846 | ||
2930d117 | 4847 | cod = code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4848 | if (code == FONT_INVALID_CODE) |
4849 | continue; | |
a7840ffb KH |
4850 | g = Fmake_vector (make_number (LGLYPH_SIZE), Qnil); |
4851 | LGLYPH_SET_FROM (g, i); | |
4852 | LGLYPH_SET_TO (g, i); | |
4853 | LGLYPH_SET_CHAR (g, c); | |
4854 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4855 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4856 | LGLYPH_SET_WIDTH (g, metrics.width); |
4857 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4858 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4859 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4860 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4861 | ASET (vec, i, g); | |
4862 | } | |
4863 | if (! VECTORP (object)) | |
4864 | SAFE_FREE (); | |
c2f5bfd6 KH |
4865 | return vec; |
4866 | } | |
4867 | ||
ec6fe57c | 4868 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4869 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4870 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4871 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4872 | { |
4873 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4874 | CHECK_FONT (font); |
ec6fe57c KH |
4875 | |
4876 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4877 | } | |
4878 | ||
1701724c | 4879 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4880 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4881 | Optional second arg WINDOW, if non-nil, is a window displaying |
4882 | the current buffer. It defaults to the currently selected window. */) | |
5842a27b | 4883 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 KH |
4884 | { |
4885 | struct window *w; | |
e3ee0340 | 4886 | EMACS_INT pos; |
10d16101 | 4887 | |
1701724c KH |
4888 | if (NILP (string)) |
4889 | { | |
4890 | CHECK_NUMBER_COERCE_MARKER (position); | |
4891 | pos = XINT (position); | |
4892 | if (pos < BEGV || pos >= ZV) | |
4893 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4894 | } |
4895 | else | |
4896 | { | |
1701724c KH |
4897 | CHECK_NUMBER (position); |
4898 | CHECK_STRING (string); | |
4899 | pos = XINT (position); | |
4900 | if (pos < 0 || pos >= SCHARS (string)) | |
4901 | args_out_of_range (string, position); | |
1701724c | 4902 | } |
10d16101 KH |
4903 | if (NILP (window)) |
4904 | window = selected_window; | |
4905 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4906 | w = XWINDOW (window); |
10d16101 | 4907 | |
40fb53d6 | 4908 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4909 | } |
4910 | ||
c2f5bfd6 KH |
4911 | #if 0 |
4912 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4913 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4914 | The value is a number of glyphs drawn. | |
4915 | Type C-l to recover what previously shown. */) | |
5842a27b | 4916 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4917 | { |
4918 | Lisp_Object frame = selected_frame; | |
4919 | FRAME_PTR f = XFRAME (frame); | |
4920 | struct font *font; | |
4921 | struct face *face; | |
4922 | int i, len, width; | |
4923 | unsigned *code; | |
4924 | ||
4925 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4926 | CHECK_STRING (string); | |
4927 | len = SCHARS (string); | |
4928 | code = alloca (sizeof (unsigned) * len); | |
4929 | for (i = 0; i < len; i++) | |
4930 | { | |
4931 | Lisp_Object ch = Faref (string, make_number (i)); | |
4932 | Lisp_Object val; | |
4933 | int c = XINT (ch); | |
4934 | ||
4935 | code[i] = font->driver->encode_char (font, c); | |
4936 | if (code[i] == FONT_INVALID_CODE) | |
4937 | break; | |
4938 | } | |
4939 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4940 | face->fontp = font; | |
4941 | if (font->driver->prepare_face) | |
4942 | font->driver->prepare_face (f, face); | |
4943 | width = font->driver->text_extents (font, code, i, NULL); | |
4944 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4945 | if (font->driver->done_face) | |
4946 | font->driver->done_face (f, face); | |
4947 | face->fontp = NULL; | |
4948 | return make_number (len); | |
4949 | } | |
4950 | #endif | |
4951 | ||
4952 | #endif /* FONT_DEBUG */ | |
4953 | ||
a266686a KH |
4954 | #ifdef HAVE_WINDOW_SYSTEM |
4955 | ||
72606e45 KH |
4956 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4957 | doc: /* Return information about a font named NAME on frame FRAME. | |
4958 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4959 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4960 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4961 | where | |
4962 | OPENED-NAME is the name used for opening the font, | |
4963 | FULL-NAME is the full name of the font, | |
06f19b91 KH |
4964 | SIZE is the pixelsize of the font, |
4965 | HEIGHT is the pixel-height of the font (i.e ascent + descent), | |
72606e45 KH |
4966 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4967 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4968 | how to compose characters. | |
4969 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4970 | (Lisp_Object name, Lisp_Object frame) |
72606e45 KH |
4971 | { |
4972 | FRAME_PTR f; | |
4973 | struct font *font; | |
4974 | Lisp_Object info; | |
4975 | Lisp_Object font_object; | |
4976 | ||
4977 | (*check_window_system_func) (); | |
4978 | ||
4979 | if (! FONTP (name)) | |
4980 | CHECK_STRING (name); | |
4981 | if (NILP (frame)) | |
4982 | frame = selected_frame; | |
4983 | CHECK_LIVE_FRAME (frame); | |
4984 | f = XFRAME (frame); | |
4985 | ||
4986 | if (STRINGP (name)) | |
4987 | { | |
4988 | int fontset = fs_query_fontset (name, 0); | |
4989 | ||
4990 | if (fontset >= 0) | |
4991 | name = fontset_ascii (fontset); | |
4992 | font_object = font_open_by_name (f, (char *) SDATA (name)); | |
4993 | } | |
4994 | else if (FONT_OBJECT_P (name)) | |
4995 | font_object = name; | |
4996 | else if (FONT_ENTITY_P (name)) | |
4997 | font_object = font_open_entity (f, name, 0); | |
4998 | else | |
4999 | { | |
5000 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
5001 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
5002 | ||
5003 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
5004 | } | |
5005 | if (NILP (font_object)) | |
5006 | return Qnil; | |
5007 | font = XFONT_OBJECT (font_object); | |
5008 | ||
5009 | info = Fmake_vector (make_number (7), Qnil); | |
5010 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
06f19b91 | 5011 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_FULLNAME_INDEX); |
72606e45 KH |
5012 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); |
5013 | XVECTOR (info)->contents[3] = make_number (font->height); | |
5014 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
5015 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
5016 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
5017 | ||
5018 | #if 0 | |
5019 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
5020 | close it now. Perhaps, we should manage font-objects | |
5021 | by `reference-count'. */ | |
5022 | font_close_object (f, font_object); | |
5023 | #endif | |
5024 | return info; | |
5025 | } | |
a266686a | 5026 | #endif |
72606e45 | 5027 | |
c2f5bfd6 | 5028 | \f |
d0ab1ebe KH |
5029 | #define BUILD_STYLE_TABLE(TBL) \ |
5030 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
5031 | ||
5032 | static Lisp_Object | |
971de7fb | 5033 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
5034 | { |
5035 | int i, j; | |
5036 | Lisp_Object table, elt; | |
17ab8f5d | 5037 | |
d0ab1ebe KH |
5038 | table = Fmake_vector (make_number (nelement), Qnil); |
5039 | for (i = 0; i < nelement; i++) | |
5040 | { | |
5041 | for (j = 0; entry[i].names[j]; j++); | |
5042 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
5043 | ASET (elt, 0, make_number (entry[i].numeric)); | |
5044 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 5045 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
5046 | ASET (table, i, elt); |
5047 | } | |
5048 | return table; | |
5049 | } | |
5050 | ||
652b9560 | 5051 | Lisp_Object Vfont_log; |
d0ab1ebe | 5052 | |
d0818984 KH |
5053 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
5054 | If ACTION is not nil, that is added to the log when font_add_log is | |
5055 | called next time. At that time, ACTION is set back to nil. */ | |
5056 | static Lisp_Object Vfont_log_deferred; | |
5057 | ||
5058 | /* Prepend the font-related logging data in Vfont_log if it is not | |
5059 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
5060 | opening), ARG is the argument for the action, and RESULT is the | |
5061 | result of the action. */ | |
d0ab1ebe | 5062 | void |
971de7fb | 5063 | font_add_log (char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe KH |
5064 | { |
5065 | Lisp_Object tail, val; | |
5066 | int i; | |
5067 | ||
d0ab1ebe KH |
5068 | if (EQ (Vfont_log, Qt)) |
5069 | return; | |
d0818984 KH |
5070 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
5071 | { | |
071132a9 | 5072 | char *str = (char *) SDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
5073 | |
5074 | ASET (Vfont_log_deferred, 0, Qnil); | |
5075 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
5076 | AREF (Vfont_log_deferred, 2)); | |
5077 | } | |
5078 | ||
d0ab1ebe | 5079 | if (FONTP (arg)) |
db716644 KH |
5080 | { |
5081 | Lisp_Object tail, elt; | |
5082 | Lisp_Object equalstr = build_string ("="); | |
5083 | ||
5084 | val = Ffont_xlfd_name (arg, Qt); | |
5085 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
5086 | tail = XCDR (tail)) | |
5087 | { | |
5088 | elt = XCAR (tail); | |
49f9c344 KH |
5089 | if (EQ (XCAR (elt), QCscript) |
5090 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
5091 | val = concat3 (val, SYMBOL_NAME (QCscript), |
5092 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
5093 | else if (EQ (XCAR (elt), QClang) |
5094 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
5095 | val = concat3 (val, SYMBOL_NAME (QClang), |
5096 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
5097 | else if (EQ (XCAR (elt), QCotf) |
5098 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
5099 | val = concat3 (val, SYMBOL_NAME (QCotf), |
5100 | concat2 (equalstr, | |
5101 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
5102 | } | |
5103 | arg = val; | |
5104 | } | |
72d36834 KH |
5105 | |
5106 | if (CONSP (result) | |
5107 | && VECTORP (XCAR (result)) | |
5108 | && ASIZE (XCAR (result)) > 0 | |
5109 | && FONTP (AREF (XCAR (result), 0))) | |
5110 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 5111 | if (FONTP (result)) |
d26424c5 KH |
5112 | { |
5113 | val = Ffont_xlfd_name (result, Qt); | |
5114 | if (! FONT_SPEC_P (result)) | |
5115 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
5116 | build_string (":"), val); | |
5117 | result = val; | |
5118 | } | |
d0ab1ebe KH |
5119 | else if (CONSP (result)) |
5120 | { | |
5121 | result = Fcopy_sequence (result); | |
5122 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
5123 | { | |
5124 | val = XCAR (tail); | |
5125 | if (FONTP (val)) | |
5126 | val = Ffont_xlfd_name (val, Qt); | |
5127 | XSETCAR (tail, val); | |
5128 | } | |
5129 | } | |
5130 | else if (VECTORP (result)) | |
5131 | { | |
5132 | result = Fcopy_sequence (result); | |
5133 | for (i = 0; i < ASIZE (result); i++) | |
5134 | { | |
5135 | val = AREF (result, i); | |
5136 | if (FONTP (val)) | |
5137 | val = Ffont_xlfd_name (val, Qt); | |
5138 | ASET (result, i, val); | |
5139 | } | |
5140 | } | |
5141 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
5142 | } | |
5143 | ||
d0818984 KH |
5144 | /* Record a font-related logging data to be added to Vfont_log when |
5145 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
5146 | as font_add_log. */ | |
5147 | ||
5148 | void | |
971de7fb | 5149 | font_deferred_log (char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 5150 | { |
652b9560 KH |
5151 | if (EQ (Vfont_log, Qt)) |
5152 | return; | |
d0818984 KH |
5153 | ASET (Vfont_log_deferred, 0, build_string (action)); |
5154 | ASET (Vfont_log_deferred, 1, arg); | |
5155 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 5156 | } |
d0818984 | 5157 | |
c2f5bfd6 | 5158 | void |
971de7fb | 5159 | syms_of_font (void) |
c2f5bfd6 | 5160 | { |
4007dd1c KH |
5161 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
5162 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
5163 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5164 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5165 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5166 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5167 | |
1701724c KH |
5168 | staticpro (&font_charset_alist); |
5169 | font_charset_alist = Qnil; | |
5170 | ||
e0708580 | 5171 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5172 | |
9e1bb909 | 5173 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5174 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5175 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5176 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5177 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5178 | |
071132a9 KH |
5179 | DEFSYM (QCf, "Cf"); |
5180 | ||
c2f5bfd6 | 5181 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5182 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5183 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5184 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5185 | |
5186 | DEFSYM (QCfoundry, ":foundry"); | |
5187 | DEFSYM (QCadstyle, ":adstyle"); | |
5188 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5189 | DEFSYM (QCspacing, ":spacing"); |
5190 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5191 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5192 | DEFSYM (QCavgwidth, ":avgwidth"); |
5193 | DEFSYM (QCfont_entity, ":font-entity"); | |
5194 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5195 | |
ec6fe57c KH |
5196 | DEFSYM (Qc, "c"); |
5197 | DEFSYM (Qm, "m"); | |
5198 | DEFSYM (Qp, "p"); | |
5199 | DEFSYM (Qd, "d"); | |
5200 | ||
cf702558 CY |
5201 | DEFSYM (Qja, "ja"); |
5202 | DEFSYM (Qko, "ko"); | |
5203 | ||
42707278 JD |
5204 | DEFSYM (QCuser_spec, "user-spec"); |
5205 | ||
c2f5bfd6 KH |
5206 | staticpro (&null_vector); |
5207 | null_vector = Fmake_vector (make_number (0), Qnil); | |
5208 | ||
5209 | staticpro (&scratch_font_spec); | |
5210 | scratch_font_spec = Ffont_spec (0, NULL); | |
5211 | staticpro (&scratch_font_prefer); | |
5212 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5213 | ||
d0818984 KH |
5214 | staticpro (&Vfont_log_deferred); |
5215 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5216 | ||
6a3dadd2 | 5217 | #if 0 |
733fd013 KH |
5218 | #ifdef HAVE_LIBOTF |
5219 | staticpro (&otf_list); | |
5220 | otf_list = Qnil; | |
6a3dadd2 KH |
5221 | #endif /* HAVE_LIBOTF */ |
5222 | #endif /* 0 */ | |
733fd013 | 5223 | |
c2f5bfd6 KH |
5224 | defsubr (&Sfontp); |
5225 | defsubr (&Sfont_spec); | |
5226 | defsubr (&Sfont_get); | |
51cf11be | 5227 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5228 | defsubr (&Sfont_face_attributes); |
51cf11be | 5229 | #endif |
c2f5bfd6 KH |
5230 | defsubr (&Sfont_put); |
5231 | defsubr (&Slist_fonts); | |
35027d0c | 5232 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5233 | defsubr (&Sfind_font); |
5234 | defsubr (&Sfont_xlfd_name); | |
5235 | defsubr (&Sclear_font_cache); | |
071132a9 | 5236 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5237 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5238 | #if 0 |
733fd013 | 5239 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5240 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5241 | #endif /* 0 */ |
c2f5bfd6 KH |
5242 | |
5243 | #ifdef FONT_DEBUG | |
5244 | defsubr (&Sopen_font); | |
5245 | defsubr (&Sclose_font); | |
5246 | defsubr (&Squery_font); | |
a7840ffb | 5247 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5248 | defsubr (&Sfont_match_p); |
10d16101 | 5249 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5250 | #if 0 |
5251 | defsubr (&Sdraw_string); | |
5252 | #endif | |
5253 | #endif /* FONT_DEBUG */ | |
a266686a | 5254 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5255 | defsubr (&Sfont_info); |
a266686a | 5256 | #endif |
c2f5bfd6 | 5257 | |
819e81df KH |
5258 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, |
5259 | doc: /* | |
5260 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5261 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5262 | where ENCODING is a charset or a char-table, | |
5263 | and REPERTORY is a charset, a char-table, or nil. | |
5264 | ||
027a33c0 | 5265 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5266 | \(REGEXP . ENCODING). |
5267 | ||
5268 | ENCODING is for converting a character to a glyph code of the font. | |
5269 | If ENCODING is a charset, encoding a character by the charset gives | |
5270 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5271 | the table by a character gives the corresponding glyph code. | |
5272 | ||
5273 | REPERTORY specifies a repertory of characters supported by the font. | |
5274 | If REPERTORY is a charset, all characters beloging to the charset are | |
5275 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 5276 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5277 | gets the repertory information by an opened font and ENCODING. */); |
5278 | Vfont_encoding_alist = Qnil; | |
5279 | ||
933ac235 SM |
5280 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5281 | won't have any effect other than disconnect them from the style | |
5282 | table used by the font display code. So we make them read-only, | |
5283 | to avoid this confusing situation. */ | |
5284 | ||
d0ab1ebe KH |
5285 | DEFVAR_LISP_NOPRO ("font-weight-table", &Vfont_weight_table, |
5286 | doc: /* Vector of valid font weight values. | |
5287 | Each element has the form: | |
5288 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5289 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5290 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5291 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe KH |
5292 | |
5293 | DEFVAR_LISP_NOPRO ("font-slant-table", &Vfont_slant_table, | |
5294 | doc: /* Vector of font slant symbols vs the corresponding numeric values. | |
17ab8f5d | 5295 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5296 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5297 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe KH |
5298 | |
5299 | DEFVAR_LISP_NOPRO ("font-width-table", &Vfont_width_table, | |
5300 | doc: /* Alist of font width symbols vs the corresponding numeric values. | |
17ab8f5d | 5301 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5302 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5303 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5304 | |
5305 | staticpro (&font_style_table); | |
5306 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
5307 | ASET (font_style_table, 0, Vfont_weight_table); | |
5308 | ASET (font_style_table, 1, Vfont_slant_table); | |
5309 | ASET (font_style_table, 2, Vfont_width_table); | |
5310 | ||
5311 | DEFVAR_LISP ("font-log", &Vfont_log, doc: /* | |
5312 | *Logging list of font related actions and results. | |
5313 | The value t means to suppress the logging. | |
5314 | The initial value is set to nil if the environment variable | |
5315 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5316 | Vfont_log = Qnil; | |
5317 | ||
819e81df | 5318 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5319 | #ifdef HAVE_FREETYPE |
35027d0c | 5320 | syms_of_ftfont (); |
c2f5bfd6 | 5321 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5322 | syms_of_xfont (); |
5323 | syms_of_ftxfont (); | |
c2f5bfd6 | 5324 | #ifdef HAVE_XFT |
35027d0c | 5325 | syms_of_xftfont (); |
c2f5bfd6 KH |
5326 | #endif /* HAVE_XFT */ |
5327 | #endif /* HAVE_X_WINDOWS */ | |
5328 | #else /* not HAVE_FREETYPE */ | |
5329 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5330 | syms_of_xfont (); |
c2f5bfd6 KH |
5331 | #endif /* HAVE_X_WINDOWS */ |
5332 | #endif /* not HAVE_FREETYPE */ | |
5333 | #ifdef HAVE_BDFFONT | |
35027d0c | 5334 | syms_of_bdffont (); |
c2f5bfd6 KH |
5335 | #endif /* HAVE_BDFFONT */ |
5336 | #ifdef WINDOWSNT | |
35027d0c | 5337 | syms_of_w32font (); |
c2f5bfd6 | 5338 | #endif /* WINDOWSNT */ |
edfda783 AR |
5339 | #ifdef HAVE_NS |
5340 | syms_of_nsfont (); | |
5341 | #endif /* HAVE_NS */ | |
819e81df | 5342 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5343 | } |
885b7d09 | 5344 | |
652b9560 | 5345 | void |
971de7fb | 5346 | init_font (void) |
652b9560 KH |
5347 | { |
5348 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5349 | } | |
5350 | ||
885b7d09 MB |
5351 | /* arch-tag: 74c9475d-5976-4c93-a327-942ae3072846 |
5352 | (do not change this comment) */ |