Commit | Line | Data |
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c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
5df4f04c GM |
2 | Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
3 | Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 | |
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> | |
c2f5bfd6 | 24 | #include <ctype.h> |
d7306fe6 | 25 | #include <setjmp.h> |
c2f5bfd6 KH |
26 | |
27 | #include "lisp.h" | |
28 | #include "buffer.h" | |
29 | #include "frame.h" | |
10d16101 | 30 | #include "window.h" |
c2f5bfd6 KH |
31 | #include "dispextern.h" |
32 | #include "charset.h" | |
33 | #include "character.h" | |
34 | #include "composite.h" | |
35 | #include "fontset.h" | |
36 | #include "font.h" | |
37 | ||
43c0454d KH |
38 | #ifdef HAVE_X_WINDOWS |
39 | #include "xterm.h" | |
40 | #endif /* HAVE_X_WINDOWS */ | |
41 | ||
42 | #ifdef HAVE_NTGUI | |
43 | #include "w32term.h" | |
44 | #endif /* HAVE_NTGUI */ | |
45 | ||
edfda783 AR |
46 | #ifdef HAVE_NS |
47 | #include "nsterm.h" | |
48 | #endif /* HAVE_NS */ | |
49 | ||
e0708580 KH |
50 | Lisp_Object Qopentype; |
51 | ||
35027d0c | 52 | /* Important character set strings. */ |
9e1bb909 | 53 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 54 | |
edfda783 | 55 | #define DEFAULT_ENCODING Qiso8859_1 |
edfda783 | 56 | |
071132a9 KH |
57 | /* Unicode category `Cf'. */ |
58 | static Lisp_Object QCf; | |
59 | ||
c2f5bfd6 KH |
60 | /* Special vector of zero length. This is repeatedly used by (struct |
61 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 62 | static Lisp_Object null_vector; |
c2f5bfd6 | 63 | |
d0ab1ebe KH |
64 | static Lisp_Object Vfont_weight_table, Vfont_slant_table, Vfont_width_table; |
65 | ||
66 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ | |
c2f5bfd6 KH |
67 | static Lisp_Object font_style_table; |
68 | ||
d0ab1ebe KH |
69 | /* Structure used for tables mapping weight, slant, and width numeric |
70 | values and their names. */ | |
71 | ||
72 | struct table_entry | |
73 | { | |
74 | int numeric; | |
75 | /* The first one is a valid name as a face attribute. | |
76 | The second one (if any) is a typical name in XLFD field. */ | |
5e2327cf | 77 | const char *names[5]; |
d0ab1ebe KH |
78 | }; |
79 | ||
80 | /* Table of weight numeric values and their names. This table must be | |
81 | sorted by numeric values in ascending order. */ | |
82 | ||
5e2327cf | 83 | static const struct table_entry weight_table[] = |
d0ab1ebe KH |
84 | { |
85 | { 0, { "thin" }}, | |
86 | { 20, { "ultra-light", "ultralight" }}, | |
87 | { 40, { "extra-light", "extralight" }}, | |
88 | { 50, { "light" }}, | |
89 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
c2694a06 | 90 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
91 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, |
92 | { 200, { "bold" }}, | |
93 | { 205, { "extra-bold", "extrabold" }}, | |
94 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
95 | }; | |
96 | ||
97 | /* Table of slant numeric values and their names. This table must be | |
98 | sorted by numeric values in ascending order. */ | |
99 | ||
5e2327cf | 100 | static const struct table_entry slant_table[] = |
d0ab1ebe KH |
101 | { |
102 | { 0, { "reverse-oblique", "ro" }}, | |
103 | { 10, { "reverse-italic", "ri" }}, | |
c2694a06 | 104 | { 100, { "normal", "r", "unspecified" }}, |
d0ab1ebe KH |
105 | { 200, { "italic" ,"i", "ot" }}, |
106 | { 210, { "oblique", "o" }} | |
107 | }; | |
108 | ||
109 | /* Table of width numeric values and their names. This table must be | |
110 | sorted by numeric values in ascending order. */ | |
111 | ||
5e2327cf | 112 | static const struct table_entry width_table[] = |
d0ab1ebe KH |
113 | { |
114 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
115 | { 63, { "extra-condensed", "extracondensed" }}, | |
116 | { 75, { "condensed", "compressed", "narrow" }}, | |
117 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
c2694a06 | 118 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
119 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, |
120 | { 125, { "expanded" }}, | |
121 | { 150, { "extra-expanded", "extraexpanded" }}, | |
122 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
123 | }; | |
124 | ||
2f7c71a1 AS |
125 | Lisp_Object QCfoundry; |
126 | static Lisp_Object 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 | ||
2f7c71a1 | 167 | static 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); | |
2f7c71a1 | 223 | static unsigned font_encode_char (Lisp_Object, int); |
c2f5bfd6 KH |
224 | |
225 | /* Number of registered font drivers. */ | |
226 | static int num_font_drivers; | |
227 | ||
35027d0c KH |
228 | |
229 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
230 | If STR is "*", it returns nil. | |
2f286d4f KH |
231 | If FORCE_SYMBOL is zero and all characters in STR are digits, it |
232 | returns an integer. Otherwise, it returns a symbol interned from | |
233 | STR. */ | |
35027d0c KH |
234 | |
235 | Lisp_Object | |
675e2c69 | 236 | font_intern_prop (const char *str, int len, int force_symbol) |
35027d0c KH |
237 | { |
238 | int i; | |
d0ab1ebe | 239 | Lisp_Object tem; |
35027d0c | 240 | Lisp_Object obarray; |
14162469 | 241 | EMACS_INT nbytes, nchars; |
35027d0c KH |
242 | |
243 | if (len == 1 && *str == '*') | |
244 | return Qnil; | |
2f286d4f | 245 | if (!force_symbol && len >=1 && isdigit (*str)) |
35027d0c KH |
246 | { |
247 | for (i = 1; i < len; i++) | |
248 | if (! isdigit (str[i])) | |
249 | break; | |
250 | if (i == len) | |
251 | return make_number (atoi (str)); | |
252 | } | |
253 | ||
545312c2 KH |
254 | /* The following code is copied from the function intern (in |
255 | lread.c), and modified to suite our purpose. */ | |
35027d0c KH |
256 | obarray = Vobarray; |
257 | if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0) | |
258 | obarray = check_obarray (obarray); | |
72d36834 | 259 | parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes); |
545312c2 KH |
260 | if (len == nchars || len != nbytes) |
261 | /* CONTENTS contains no multibyte sequences or contains an invalid | |
262 | multibyte sequence. We'll make a unibyte string. */ | |
263 | tem = oblookup (obarray, str, len, len); | |
264 | else | |
265 | tem = oblookup (obarray, str, nchars, len); | |
35027d0c KH |
266 | if (SYMBOLP (tem)) |
267 | return tem; | |
545312c2 KH |
268 | if (len == nchars || len != nbytes) |
269 | tem = make_unibyte_string (str, len); | |
270 | else | |
271 | tem = make_multibyte_string (str, nchars, len); | |
272 | return Fintern (tem, obarray); | |
35027d0c KH |
273 | } |
274 | ||
9331887d | 275 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 276 | |
9331887d | 277 | static int |
971de7fb | 278 | font_pixel_size (FRAME_PTR f, Lisp_Object spec) |
9331887d | 279 | { |
819e81df | 280 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
281 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
282 | double point_size; | |
35027d0c | 283 | int dpi, pixel_size; |
d0ab1ebe | 284 | Lisp_Object val; |
51c01100 | 285 | |
9331887d KH |
286 | if (INTEGERP (size)) |
287 | return XINT (size); | |
288 | if (NILP (size)) | |
819e81df | 289 | return 0; |
d0ab1ebe | 290 | font_assert (FLOATP (size)); |
9331887d | 291 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
292 | val = AREF (spec, FONT_DPI_INDEX); |
293 | if (INTEGERP (val)) | |
17e28f6d | 294 | dpi = XINT (val); |
9331887d KH |
295 | else |
296 | dpi = f->resy; | |
297 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
298 | return pixel_size; | |
819e81df KH |
299 | #else |
300 | return 1; | |
301 | #endif | |
9331887d KH |
302 | } |
303 | ||
c2f5bfd6 | 304 | |
35027d0c KH |
305 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
306 | font vector. If VAL is not valid (i.e. not registered in | |
307 | font_style_table), return -1 if NOERROR is zero, and return a | |
308 | proper index if NOERROR is nonzero. In that case, register VAL in | |
309 | font_style_table if VAL is a symbol, and return a closest index if | |
310 | VAL is an integer. */ | |
c2f5bfd6 | 311 | |
35027d0c | 312 | int |
971de7fb | 313 | font_style_to_value (enum font_property_index prop, Lisp_Object val, int noerror) |
c2f5bfd6 | 314 | { |
35027d0c KH |
315 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
316 | int len = ASIZE (table); | |
d0ab1ebe | 317 | int i, j; |
c2f5bfd6 | 318 | |
35027d0c | 319 | if (SYMBOLP (val)) |
c2f5bfd6 | 320 | { |
72606e45 | 321 | unsigned char *s; |
35027d0c KH |
322 | Lisp_Object args[2], elt; |
323 | ||
324 | /* At first try exact match. */ | |
325 | for (i = 0; i < len; i++) | |
d0ab1ebe KH |
326 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
327 | if (EQ (val, AREF (AREF (table, i), j))) | |
328 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
329 | | (i << 4) | (j - 1)); | |
35027d0c | 330 | /* Try also with case-folding match. */ |
72606e45 | 331 | s = SDATA (SYMBOL_NAME (val)); |
35027d0c | 332 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
333 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
334 | { | |
335 | elt = AREF (AREF (table, i), j); | |
72606e45 | 336 | if (xstrcasecmp (s, SDATA (SYMBOL_NAME (elt))) == 0) |
d0ab1ebe KH |
337 | return ((XINT (AREF (AREF (table, i), 0)) << 8) |
338 | | (i << 4) | (j - 1)); | |
339 | } | |
35027d0c KH |
340 | if (! noerror) |
341 | return -1; | |
342 | if (len == 255) | |
343 | abort (); | |
c2694a06 | 344 | elt = Fmake_vector (make_number (2), make_number (100)); |
d0ab1ebe | 345 | ASET (elt, 1, val); |
35027d0c | 346 | args[0] = table; |
d0ab1ebe | 347 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 348 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
c2694a06 | 349 | return (100 << 8) | (i << 4); |
c2f5bfd6 | 350 | } |
35027d0c KH |
351 | else |
352 | { | |
d0ab1ebe | 353 | int i, last_n; |
35027d0c | 354 | int numeric = XINT (val); |
c2f5bfd6 | 355 | |
d0ab1ebe | 356 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 357 | { |
d0ab1ebe | 358 | int n = XINT (AREF (AREF (table, i), 0)); |
c2f5bfd6 | 359 | |
35027d0c | 360 | if (numeric == n) |
d0ab1ebe | 361 | return (n << 8) | (i << 4); |
35027d0c KH |
362 | if (numeric < n) |
363 | { | |
364 | if (! noerror) | |
365 | return -1; | |
d0ab1ebe KH |
366 | return ((i == 0 || n - numeric < numeric - last_n) |
367 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 368 | } |
35027d0c | 369 | last_n = n; |
35027d0c KH |
370 | } |
371 | if (! noerror) | |
372 | return -1; | |
d0ab1ebe | 373 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
374 | } |
375 | } | |
c2f5bfd6 KH |
376 | |
377 | Lisp_Object | |
971de7fb | 378 | font_style_symbolic (Lisp_Object font, enum font_property_index prop, int for_face) |
c2f5bfd6 | 379 | { |
3ef8c1b4 | 380 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
381 | Lisp_Object table, elt; |
382 | int i; | |
c2f5bfd6 | 383 | |
35027d0c KH |
384 | if (NILP (val)) |
385 | return Qnil; | |
386 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
d0ab1ebe KH |
387 | i = XINT (val) & 0xFF; |
388 | font_assert (((i >> 4) & 0xF) < ASIZE (table)); | |
389 | elt = AREF (table, ((i >> 4) & 0xF)); | |
390 | font_assert ((i & 0xF) + 1 < ASIZE (elt)); | |
ba3de0e8 | 391 | return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
6fe9826d JR |
392 | } |
393 | ||
819e81df KH |
394 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
395 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
396 | of the font. REPERTORY is a charset symbol or nil. */ | |
397 | ||
398 | Lisp_Object | |
971de7fb | 399 | find_font_encoding (Lisp_Object fontname) |
819e81df KH |
400 | { |
401 | Lisp_Object tail, elt; | |
402 | ||
403 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
404 | { | |
405 | elt = XCAR (tail); | |
406 | if (CONSP (elt) | |
407 | && STRINGP (XCAR (elt)) | |
408 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
409 | && (SYMBOLP (XCDR (elt)) | |
410 | ? CHARSETP (XCDR (elt)) | |
411 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
412 | return (XCDR (elt)); | |
413 | } | |
182ba28c | 414 | return Qnil; |
819e81df KH |
415 | } |
416 | ||
1701724c KH |
417 | /* Return encoding charset and repertory charset for REGISTRY in |
418 | ENCODING and REPERTORY correspondingly. If correct information for | |
419 | REGISTRY is available, return 0. Otherwise return -1. */ | |
420 | ||
421 | int | |
971de7fb | 422 | font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory) |
1701724c KH |
423 | { |
424 | Lisp_Object val; | |
425 | int encoding_id, repertory_id; | |
426 | ||
35027d0c | 427 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
428 | if (! NILP (val)) |
429 | { | |
430 | val = XCDR (val); | |
431 | if (NILP (val)) | |
432 | return -1; | |
433 | encoding_id = XINT (XCAR (val)); | |
434 | repertory_id = XINT (XCDR (val)); | |
435 | } | |
436 | else | |
437 | { | |
438 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
439 | if (SYMBOLP (val) && CHARSETP (val)) | |
440 | { | |
441 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
442 | } | |
443 | else if (CONSP (val)) | |
444 | { | |
445 | if (! CHARSETP (XCAR (val))) | |
446 | goto invalid_entry; | |
447 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
448 | if (NILP (XCDR (val))) | |
449 | repertory_id = -1; | |
450 | else | |
451 | { | |
452 | if (! CHARSETP (XCDR (val))) | |
453 | goto invalid_entry; | |
454 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
455 | } | |
51c01100 | 456 | } |
1701724c KH |
457 | else |
458 | goto invalid_entry; | |
459 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
460 | font_charset_alist | |
461 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
462 | } | |
463 | ||
464 | if (encoding) | |
465 | *encoding = CHARSET_FROM_ID (encoding_id); | |
466 | if (repertory) | |
467 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
468 | return 0; | |
469 | ||
470 | invalid_entry: | |
471 | font_charset_alist | |
472 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
473 | return -1; | |
474 | } | |
475 | ||
c2f5bfd6 | 476 | \f |
45eb10fb KH |
477 | /* Font property value validaters. See the comment of |
478 | font_property_table for the meaning of the arguments. */ | |
479 | ||
f57e2426 J |
480 | static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object); |
481 | static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object); | |
482 | static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object); | |
483 | static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object); | |
484 | static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object); | |
485 | static int get_font_prop_index (Lisp_Object); | |
c2f5bfd6 KH |
486 | |
487 | static Lisp_Object | |
971de7fb | 488 | font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
489 | { |
490 | if (STRINGP (val)) | |
35027d0c KH |
491 | val = Fintern (val, Qnil); |
492 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 493 | val = Qerror; |
35027d0c KH |
494 | else if (EQ (prop, QCregistry)) |
495 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
496 | return val; |
497 | } | |
498 | ||
35027d0c | 499 | |
c2f5bfd6 | 500 | static Lisp_Object |
971de7fb | 501 | font_prop_validate_style (Lisp_Object style, Lisp_Object val) |
c2f5bfd6 | 502 | { |
35027d0c KH |
503 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
504 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
505 | : FONT_WIDTH_INDEX); | |
506 | int n; | |
507 | if (INTEGERP (val)) | |
c2f5bfd6 | 508 | { |
35027d0c | 509 | n = XINT (val); |
64b900e3 | 510 | if (((n >> 4) & 0xF) |
35027d0c | 511 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
512 | val = Qerror; |
513 | else | |
514 | { | |
64b900e3 KH |
515 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
516 | ||
517 | if ((n & 0xF) + 1 >= ASIZE (elt)) | |
518 | val = Qerror; | |
519 | else if (XINT (AREF (elt, 0)) != (n >> 8)) | |
c2f5bfd6 KH |
520 | val = Qerror; |
521 | } | |
522 | } | |
35027d0c KH |
523 | else if (SYMBOLP (val)) |
524 | { | |
525 | int n = font_style_to_value (prop, val, 0); | |
526 | ||
527 | val = n >= 0 ? make_number (n) : Qerror; | |
528 | } | |
529 | else | |
530 | val = Qerror; | |
c2f5bfd6 KH |
531 | return val; |
532 | } | |
533 | ||
534 | static Lisp_Object | |
971de7fb | 535 | font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
536 | { |
537 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
538 | ? val : Qerror); | |
539 | } | |
540 | ||
541 | static Lisp_Object | |
971de7fb | 542 | font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val) |
ec6fe57c KH |
543 | { |
544 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
545 | return val; | |
3692570f KH |
546 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
547 | { | |
548 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
549 | ||
550 | if (spacing == 'c' || spacing == 'C') | |
551 | return make_number (FONT_SPACING_CHARCELL); | |
552 | if (spacing == 'm' || spacing == 'M') | |
553 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 554 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
555 | return make_number (FONT_SPACING_PROPORTIONAL); |
556 | if (spacing == 'd' || spacing == 'D') | |
557 | return make_number (FONT_SPACING_DUAL); | |
558 | } | |
ec6fe57c KH |
559 | return Qerror; |
560 | } | |
561 | ||
1701724c | 562 | static Lisp_Object |
971de7fb | 563 | font_prop_validate_otf (Lisp_Object prop, Lisp_Object val) |
1701724c KH |
564 | { |
565 | Lisp_Object tail, tmp; | |
566 | int i; | |
567 | ||
568 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
569 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
570 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
571 | if (! CONSP (val)) | |
572 | return Qerror; | |
573 | if (! SYMBOLP (XCAR (val))) | |
574 | return Qerror; | |
575 | tail = XCDR (val); | |
576 | if (NILP (tail)) | |
577 | return val; | |
578 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
579 | return Qerror; | |
580 | for (i = 0; i < 2; i++) | |
581 | { | |
582 | tail = XCDR (tail); | |
583 | if (NILP (tail)) | |
584 | return val; | |
585 | if (! CONSP (tail)) | |
586 | return Qerror; | |
587 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
588 | if (! SYMBOLP (XCAR (tmp))) | |
589 | return Qerror; | |
590 | if (! NILP (tmp)) | |
591 | return Qerror; | |
592 | } | |
593 | return val; | |
594 | } | |
595 | ||
ec6fe57c KH |
596 | /* Structure of known font property keys and validater of the |
597 | values. */ | |
04bab72c | 598 | static const struct |
c2f5bfd6 | 599 | { |
ec6fe57c | 600 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 601 | Lisp_Object *key; |
45eb10fb KH |
602 | /* Function to validate PROP's value VAL, or NULL if any value is |
603 | ok. The value is VAL or its regularized value if VAL is valid, | |
604 | and Qerror if not. */ | |
f57e2426 | 605 | Lisp_Object (*validater) (Lisp_Object prop, Lisp_Object val); |
ec6fe57c KH |
606 | } font_property_table[] = |
607 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
608 | { &QCfoundry, font_prop_validate_symbol }, |
609 | { &QCfamily, font_prop_validate_symbol }, | |
610 | { &QCadstyle, font_prop_validate_symbol }, | |
611 | { &QCregistry, font_prop_validate_symbol }, | |
612 | { &QCweight, font_prop_validate_style }, | |
613 | { &QCslant, font_prop_validate_style }, | |
614 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 615 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
616 | { &QCdpi, font_prop_validate_non_neg }, |
617 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
618 | { &QCavgwidth, font_prop_validate_non_neg }, |
619 | /* The order of the above entries must match with enum | |
620 | font_property_index. */ | |
621 | { &QClang, font_prop_validate_symbol }, | |
622 | { &QCscript, font_prop_validate_symbol }, | |
623 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
624 | }; |
625 | ||
45eb10fb | 626 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
627 | #define FONT_PROPERTY_TABLE_SIZE \ |
628 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
629 | ||
45eb10fb | 630 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 631 | already known property. */ |
45eb10fb | 632 | |
ec6fe57c | 633 | static int |
971de7fb | 634 | get_font_prop_index (Lisp_Object key) |
c2f5bfd6 | 635 | { |
35027d0c KH |
636 | int i; |
637 | ||
638 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
639 | if (EQ (key, *font_property_table[i].key)) | |
640 | return i; | |
ec6fe57c | 641 | return -1; |
c2f5bfd6 KH |
642 | } |
643 | ||
35027d0c KH |
644 | /* Validate the font property. The property key is specified by the |
645 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
646 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 647 | |
c2f5bfd6 | 648 | static Lisp_Object |
971de7fb | 649 | font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 650 | { |
35027d0c | 651 | Lisp_Object validated; |
c2f5bfd6 | 652 | |
1f09f444 KH |
653 | if (NILP (val)) |
654 | return val; | |
35027d0c KH |
655 | if (NILP (prop)) |
656 | prop = *font_property_table[idx].key; | |
657 | else | |
ec6fe57c | 658 | { |
35027d0c KH |
659 | idx = get_font_prop_index (prop); |
660 | if (idx < 0) | |
661 | return val; | |
ec6fe57c | 662 | } |
35027d0c KH |
663 | validated = (font_property_table[idx].validater) (prop, val); |
664 | if (EQ (validated, Qerror)) | |
665 | signal_error ("invalid font property", Fcons (prop, val)); | |
666 | return validated; | |
c2f5bfd6 | 667 | } |
51c01100 | 668 | |
35027d0c KH |
669 | |
670 | /* Store VAL as a value of extra font property PROP in FONT while | |
671 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 672 | |
01dbeb0b | 673 | Lisp_Object |
971de7fb | 674 | font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
9331887d KH |
675 | { |
676 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 677 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
678 | |
679 | if (NILP (slot)) | |
680 | { | |
35027d0c KH |
681 | Lisp_Object prev = Qnil; |
682 | ||
683 | while (CONSP (extra) | |
684 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
685 | prev = extra, extra = XCDR (extra); | |
581e51e8 | 686 | |
ce75f06e | 687 | if (NILP (prev)) |
581e51e8 | 688 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 689 | else |
581e51e8 | 690 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 691 | |
ec6fe57c | 692 | return val; |
9331887d | 693 | } |
9331887d | 694 | XSETCDR (slot, val); |
483670b5 KH |
695 | if (NILP (val)) |
696 | ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra)); | |
ec6fe57c | 697 | return val; |
9331887d KH |
698 | } |
699 | ||
c2f5bfd6 KH |
700 | \f |
701 | /* Font name parser and unparser */ | |
702 | ||
8ea90aa3 | 703 | static int parse_matrix (const char *); |
f57e2426 | 704 | static int font_expand_wildcards (Lisp_Object *, int); |
09d93395 | 705 | static int font_parse_name (char *, Lisp_Object); |
c2f5bfd6 | 706 | |
ec6fe57c | 707 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
708 | enum xlfd_field_index |
709 | { | |
710 | XLFD_FOUNDRY_INDEX, | |
711 | XLFD_FAMILY_INDEX, | |
712 | XLFD_WEIGHT_INDEX, | |
713 | XLFD_SLANT_INDEX, | |
714 | XLFD_SWIDTH_INDEX, | |
715 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
716 | XLFD_PIXEL_INDEX, |
717 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
718 | XLFD_RESX_INDEX, |
719 | XLFD_RESY_INDEX, | |
720 | XLFD_SPACING_INDEX, | |
721 | XLFD_AVGWIDTH_INDEX, | |
722 | XLFD_REGISTRY_INDEX, | |
723 | XLFD_ENCODING_INDEX, | |
724 | XLFD_LAST_INDEX | |
725 | }; | |
726 | ||
ec6fe57c | 727 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
728 | enum xlfd_field_mask |
729 | { | |
730 | XLFD_FOUNDRY_MASK = 0x0001, | |
731 | XLFD_FAMILY_MASK = 0x0002, | |
732 | XLFD_WEIGHT_MASK = 0x0004, | |
733 | XLFD_SLANT_MASK = 0x0008, | |
734 | XLFD_SWIDTH_MASK = 0x0010, | |
735 | XLFD_ADSTYLE_MASK = 0x0020, | |
736 | XLFD_PIXEL_MASK = 0x0040, | |
737 | XLFD_POINT_MASK = 0x0080, | |
738 | XLFD_RESX_MASK = 0x0100, | |
739 | XLFD_RESY_MASK = 0x0200, | |
740 | XLFD_SPACING_MASK = 0x0400, | |
741 | XLFD_AVGWIDTH_MASK = 0x0800, | |
742 | XLFD_REGISTRY_MASK = 0x1000, | |
743 | XLFD_ENCODING_MASK = 0x2000 | |
744 | }; | |
745 | ||
746 | ||
c2f5bfd6 KH |
747 | /* Parse P pointing the pixel/point size field of the form |
748 | `[A B C D]' which specifies a transformation matrix: | |
749 | ||
750 | A B 0 | |
751 | C D 0 | |
752 | 0 0 1 | |
753 | ||
754 | by which all glyphs of the font are transformed. The spec says | |
755 | that scalar value N for the pixel/point size is equivalent to: | |
756 | A = N * resx/resy, B = C = 0, D = N. | |
757 | ||
758 | Return the scalar value N if the form is valid. Otherwise return | |
759 | -1. */ | |
760 | ||
761 | static int | |
8ea90aa3 | 762 | parse_matrix (const char *p) |
c2f5bfd6 KH |
763 | { |
764 | double matrix[4]; | |
765 | char *end; | |
766 | int i; | |
767 | ||
768 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
769 | { | |
770 | if (*p == '~') | |
771 | matrix[i] = - strtod (p + 1, &end); | |
772 | else | |
773 | matrix[i] = strtod (p, &end); | |
774 | p = end; | |
775 | } | |
776 | return (i == 4 ? (int) matrix[3] : -1); | |
777 | } | |
778 | ||
4485a28e KH |
779 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
780 | multiple fields to fill in all 14 XLFD fields while restring a | |
781 | field position by its contents. */ | |
782 | ||
ec6fe57c | 783 | static int |
971de7fb | 784 | font_expand_wildcards (Lisp_Object *field, int n) |
4485a28e KH |
785 | { |
786 | /* Copy of FIELD. */ | |
787 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
788 | /* Array of information about where this element can go. Nth | |
789 | element is for Nth element of FIELD. */ | |
790 | struct { | |
791 | /* Minimum possible field. */ | |
792 | int from; | |
793 | /* Maxinum possible field. */ | |
794 | int to; | |
795 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
796 | int mask; | |
797 | } range[XLFD_LAST_INDEX]; | |
798 | int i, j; | |
ec6fe57c | 799 | int range_from, range_to; |
4485a28e KH |
800 | unsigned range_mask; |
801 | ||
802 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
803 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
804 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 805 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 806 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
807 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
808 | ||
809 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
810 | field. The value is shifted to left one bit by one in the | |
811 | following loop. */ | |
812 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
813 | range_mask = (range_mask << 1) | 1; | |
814 | ||
ec6fe57c KH |
815 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
816 | position-based retriction for FIELD[I]. */ | |
817 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
818 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 819 | { |
4485a28e KH |
820 | Lisp_Object val = field[i]; |
821 | ||
822 | tmp[i] = val; | |
823 | if (NILP (val)) | |
824 | { | |
825 | /* Wildcard. */ | |
826 | range[i].from = range_from; | |
827 | range[i].to = range_to; | |
828 | range[i].mask = range_mask; | |
829 | } | |
830 | else | |
831 | { | |
832 | /* The triplet FROM, TO, and MASK is a value-based | |
833 | retriction for FIELD[I]. */ | |
834 | int from, to; | |
835 | unsigned mask; | |
836 | ||
837 | if (INTEGERP (val)) | |
838 | { | |
839 | int numeric = XINT (val); | |
840 | ||
ef18374f KH |
841 | if (i + 1 == n) |
842 | from = to = XLFD_ENCODING_INDEX, | |
843 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
844 | else if (numeric == 0) |
845 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
846 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
847 | else if (numeric <= 48) |
848 | from = to = XLFD_PIXEL_INDEX, | |
849 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 850 | else |
ec6fe57c | 851 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
852 | mask = XLFD_LARGENUM_MASK; |
853 | } | |
35027d0c | 854 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
855 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
856 | mask = XLFD_NULL_MASK; | |
857 | else if (i == 0) | |
858 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
859 | else if (i + 1 == n) | |
860 | { | |
861 | Lisp_Object name = SYMBOL_NAME (val); | |
862 | ||
863 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
864 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
865 | mask = XLFD_REGENC_MASK; | |
866 | else | |
867 | from = to = XLFD_ENCODING_INDEX, | |
868 | mask = XLFD_ENCODING_MASK; | |
869 | } | |
ef18374f KH |
870 | else if (range_from <= XLFD_WEIGHT_INDEX |
871 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 872 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 873 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
874 | else if (range_from <= XLFD_SLANT_INDEX |
875 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 876 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 877 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
878 | else if (range_from <= XLFD_SWIDTH_INDEX |
879 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 880 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
881 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
882 | else | |
883 | { | |
ec6fe57c | 884 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
885 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
886 | else | |
887 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
888 | mask = XLFD_SYMBOL_MASK; | |
889 | } | |
890 | ||
891 | /* Merge position-based and value-based restrictions. */ | |
892 | mask &= range_mask; | |
893 | while (from < range_from) | |
894 | mask &= ~(1 << from++); | |
895 | while (from < 14 && ! (mask & (1 << from))) | |
896 | from++; | |
897 | while (to > range_to) | |
898 | mask &= ~(1 << to--); | |
899 | while (to >= 0 && ! (mask & (1 << to))) | |
900 | to--; | |
901 | if (from > to) | |
902 | return -1; | |
903 | range[i].from = from; | |
904 | range[i].to = to; | |
905 | range[i].mask = mask; | |
906 | ||
907 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
908 | { |
909 | /* The range is narrowed by value-based restrictions. | |
910 | Reflect it to the other fields. */ | |
911 | ||
912 | /* Following fields should be after FROM. */ | |
913 | range_from = from; | |
914 | /* Preceding fields should be before TO. */ | |
915 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
916 | { | |
917 | /* Check FROM for non-wildcard field. */ | |
918 | if (! NILP (tmp[j]) && range[j].from < from) | |
919 | { | |
920 | while (range[j].from < from) | |
921 | range[j].mask &= ~(1 << range[j].from++); | |
922 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
923 | from++; | |
924 | range[j].from = from; | |
925 | } | |
926 | else | |
927 | from = range[j].from; | |
928 | if (range[j].to > to) | |
929 | { | |
930 | while (range[j].to > to) | |
931 | range[j].mask &= ~(1 << range[j].to--); | |
932 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
933 | to--; | |
934 | range[j].to = to; | |
935 | } | |
936 | else | |
937 | to = range[j].to; | |
938 | if (from > to) | |
939 | return -1; | |
940 | } | |
941 | } | |
4485a28e KH |
942 | } |
943 | } | |
944 | ||
945 | /* Decide all fileds from restrictions in RANGE. */ | |
946 | for (i = j = 0; i < n ; i++) | |
947 | { | |
948 | if (j < range[i].from) | |
949 | { | |
950 | if (i == 0 || ! NILP (tmp[i - 1])) | |
951 | /* None of TMP[X] corresponds to Jth field. */ | |
952 | return -1; | |
953 | for (; j < range[i].from; j++) | |
954 | field[j] = Qnil; | |
955 | } | |
956 | field[j++] = tmp[i]; | |
957 | } | |
958 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
959 | return -1; | |
960 | for (; j < XLFD_LAST_INDEX; j++) | |
961 | field[j] = Qnil; | |
962 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
963 | field[XLFD_ENCODING_INDEX] | |
964 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
965 | return 0; | |
966 | } | |
967 | ||
43a1d19b | 968 | |
ef18374f | 969 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
970 | (font-spec or font-entity). Size property of FONT is set as |
971 | follows: | |
972 | specified XLFD fields FONT property | |
973 | --------------------- ------------- | |
974 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
975 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
976 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
977 | ||
ec6fe57c | 978 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 979 | |
ec6fe57c KH |
980 | FONT is usually a font-spec, but when this function is called from |
981 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 982 | a fully specified XLFD. */ |
c2f5bfd6 KH |
983 | |
984 | int | |
09d93395 | 985 | font_parse_xlfd (char *name, Lisp_Object font) |
c2f5bfd6 KH |
986 | { |
987 | int len = strlen (name); | |
35027d0c | 988 | int i, j, n; |
cf23b845 | 989 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 990 | Lisp_Object val; |
4485a28e | 991 | char *p; |
c2f5bfd6 | 992 | |
e3928081 | 993 | if (len > 255 || !len) |
c2f5bfd6 KH |
994 | /* Maximum XLFD name length is 255. */ |
995 | return -1; | |
ec6fe57c | 996 | /* Accept "*-.." as a fully specified XLFD. */ |
e3928081 | 997 | if (name[0] == '*' && (len == 1 || name[1] == '-')) |
ec6fe57c KH |
998 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; |
999 | else | |
1000 | i = 0; | |
1001 | for (p = name + i; *p; p++) | |
35027d0c KH |
1002 | if (*p == '-') |
1003 | { | |
1004 | f[i++] = p + 1; | |
1005 | if (i == XLFD_LAST_INDEX) | |
1006 | break; | |
1007 | } | |
1008 | f[i] = name + len; | |
c2f5bfd6 | 1009 | |
2f286d4f KH |
1010 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1011 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1012 | |
ec6fe57c | 1013 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1014 | { |
35027d0c | 1015 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1016 | int pixel_size; |
1017 | ||
2f286d4f KH |
1018 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1019 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1020 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1021 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1022 | { |
2f286d4f | 1023 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1024 | if (! NILP (val)) |
4485a28e | 1025 | { |
2f286d4f | 1026 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1027 | return -1; |
1028 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1029 | } |
1030 | } | |
2f286d4f | 1031 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1032 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1033 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1034 | else | |
1035 | ASET (font, FONT_REGISTRY_INDEX, | |
1036 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1037 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1038 | 1)); | |
ec6fe57c KH |
1039 | p = f[XLFD_PIXEL_INDEX]; |
1040 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1041 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1042 | else |
1043 | { | |
35027d0c KH |
1044 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1045 | if (INTEGERP (val)) | |
ec6fe57c | 1046 | ASET (font, FONT_SIZE_INDEX, val); |
b57d9029 KH |
1047 | else if (FONT_ENTITY_P (font)) |
1048 | return -1; | |
ec6fe57c KH |
1049 | else |
1050 | { | |
1051 | double point_size = -1; | |
1052 | ||
d0ab1ebe | 1053 | font_assert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1054 | p = f[XLFD_POINT_INDEX]; |
1055 | if (*p == '[') | |
1056 | point_size = parse_matrix (p); | |
1057 | else if (isdigit (*p)) | |
1058 | point_size = atoi (p), point_size /= 10; | |
1059 | if (point_size >= 0) | |
1060 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1061 | } |
1062 | } | |
ec6fe57c | 1063 | |
087048cd KH |
1064 | val = INTERN_FIELD (XLFD_RESY_INDEX); |
1065 | if (! NILP (val) && ! INTEGERP (val)) | |
1066 | return -1; | |
1067 | ASET (font, FONT_DPI_INDEX, val); | |
35027d0c KH |
1068 | val = INTERN_FIELD (XLFD_SPACING_INDEX); |
1069 | if (! NILP (val)) | |
ec6fe57c | 1070 | { |
35027d0c KH |
1071 | val = font_prop_validate_spacing (QCspacing, val); |
1072 | if (! INTEGERP (val)) | |
1073 | return -1; | |
1074 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1075 | } |
ec6fe57c KH |
1076 | p = f[XLFD_AVGWIDTH_INDEX]; |
1077 | if (*p == '~') | |
1078 | p++; | |
087048cd KH |
1079 | val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0); |
1080 | if (! NILP (val) && ! INTEGERP (val)) | |
1081 | return -1; | |
1082 | ASET (font, FONT_AVGWIDTH_INDEX, val); | |
4485a28e KH |
1083 | } |
1084 | else | |
c2f5bfd6 | 1085 | { |
4485a28e | 1086 | int wild_card_found = 0; |
ec6fe57c | 1087 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1088 | |
35027d0c KH |
1089 | if (FONT_ENTITY_P (font)) |
1090 | return -1; | |
ec6fe57c | 1091 | for (j = 0; j < i; j++) |
4485a28e | 1092 | { |
ec6fe57c | 1093 | if (*f[j] == '*') |
4485a28e | 1094 | { |
ec6fe57c KH |
1095 | if (f[j][1] && f[j][1] != '-') |
1096 | return -1; | |
1097 | prop[j] = Qnil; | |
1098 | wild_card_found = 1; | |
1099 | } | |
ec6fe57c | 1100 | else if (j + 1 < i) |
35027d0c | 1101 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1102 | else |
2f286d4f | 1103 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1104 | } |
1105 | if (! wild_card_found) | |
c2f5bfd6 | 1106 | return -1; |
ec6fe57c | 1107 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1108 | return -1; |
ec6fe57c | 1109 | |
35027d0c KH |
1110 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1111 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1112 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1113 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1114 | if (! NILP (prop[i])) |
35027d0c KH |
1115 | { |
1116 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1117 | return -1; | |
1118 | ASET (font, j, make_number (n)); | |
1119 | } | |
1120 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1121 | val = prop[XLFD_REGISTRY_INDEX]; |
1122 | if (NILP (val)) | |
c2f5bfd6 | 1123 | { |
ec6fe57c KH |
1124 | val = prop[XLFD_ENCODING_INDEX]; |
1125 | if (! NILP (val)) | |
35027d0c | 1126 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1127 | } |
ec6fe57c | 1128 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1129 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1130 | else |
35027d0c KH |
1131 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1132 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1133 | if (! NILP (val)) |
35027d0c | 1134 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1135 | |
1136 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1137 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1138 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1139 | { |
ec6fe57c | 1140 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1141 | |
ec6fe57c KH |
1142 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1143 | } | |
c2f5bfd6 | 1144 | |
35027d0c KH |
1145 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1146 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1147 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1148 | { | |
1149 | val = font_prop_validate_spacing (QCspacing, | |
1150 | prop[XLFD_SPACING_INDEX]); | |
1151 | if (! INTEGERP (val)) | |
1152 | return -1; | |
1153 | ASET (font, FONT_SPACING_INDEX, val); | |
1154 | } | |
ec6fe57c | 1155 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1156 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1157 | } |
1158 | ||
ec6fe57c | 1159 | return 0; |
c2f5bfd6 KH |
1160 | } |
1161 | ||
1162 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1163 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1164 | 0, use PIXEL_SIZE instead. */ | |
1165 | ||
1166 | int | |
971de7fb | 1167 | font_unparse_xlfd (Lisp_Object font, int pixel_size, char *name, int nbytes) |
c2f5bfd6 | 1168 | { |
ec6fe57c | 1169 | char *f[XLFD_REGISTRY_INDEX + 1]; |
c2f5bfd6 KH |
1170 | Lisp_Object val; |
1171 | int i, j, len = 0; | |
1172 | ||
d0ab1ebe | 1173 | font_assert (FONTP (font)); |
c2f5bfd6 KH |
1174 | |
1175 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1176 | i++, j++) | |
1177 | { | |
1178 | if (i == FONT_ADSTYLE_INDEX) | |
1179 | j = XLFD_ADSTYLE_INDEX; | |
1180 | else if (i == FONT_REGISTRY_INDEX) | |
1181 | j = XLFD_REGISTRY_INDEX; | |
1182 | val = AREF (font, i); | |
1183 | if (NILP (val)) | |
1bb1d99b KH |
1184 | { |
1185 | if (j == XLFD_REGISTRY_INDEX) | |
1186 | f[j] = "*-*", len += 4; | |
1187 | else | |
1188 | f[j] = "*", len += 2; | |
1189 | } | |
c2f5bfd6 KH |
1190 | else |
1191 | { | |
1192 | if (SYMBOLP (val)) | |
1193 | val = SYMBOL_NAME (val); | |
1bb1d99b KH |
1194 | if (j == XLFD_REGISTRY_INDEX |
1195 | && ! strchr ((char *) SDATA (val), '-')) | |
1196 | { | |
1197 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1198 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1199 | { | |
1200 | f[j] = alloca (SBYTES (val) + 3); | |
1201 | sprintf (f[j], "%s-*", SDATA (val)); | |
1202 | len += SBYTES (val) + 3; | |
1203 | } | |
1204 | else | |
1205 | { | |
1206 | f[j] = alloca (SBYTES (val) + 4); | |
1207 | sprintf (f[j], "%s*-*", SDATA (val)); | |
1208 | len += SBYTES (val) + 4; | |
1209 | } | |
1210 | } | |
1211 | else | |
1212 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; | |
c2f5bfd6 KH |
1213 | } |
1214 | } | |
1215 | ||
1216 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1217 | i++, j++) | |
1218 | { | |
35027d0c | 1219 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 KH |
1220 | if (NILP (val)) |
1221 | f[j] = "*", len += 2; | |
1222 | else | |
1223 | { | |
35027d0c | 1224 | val = SYMBOL_NAME (val); |
c2f5bfd6 KH |
1225 | f[j] = (char *) SDATA (val), len += SBYTES (val) + 1; |
1226 | } | |
1227 | } | |
1228 | ||
1229 | val = AREF (font, FONT_SIZE_INDEX); | |
d0ab1ebe | 1230 | font_assert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1231 | if (INTEGERP (val)) |
1232 | { | |
35027d0c | 1233 | i = XINT (val); |
81aefea4 SM |
1234 | if (i <= 0) |
1235 | i = pixel_size; | |
c2f5bfd6 | 1236 | if (i > 0) |
81aefea4 SM |
1237 | { |
1238 | f[XLFD_PIXEL_INDEX] = alloca (22); | |
1239 | len += sprintf (f[XLFD_PIXEL_INDEX], "%d-*", i) + 1; | |
1240 | } | |
1241 | else | |
1242 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; | |
c2f5bfd6 KH |
1243 | } |
1244 | else if (FLOATP (val)) | |
1245 | { | |
35027d0c | 1246 | i = XFLOAT_DATA (val) * 10; |
ec6fe57c | 1247 | f[XLFD_PIXEL_INDEX] = alloca (12); |
ec6fe57c | 1248 | len += sprintf (f[XLFD_PIXEL_INDEX], "*-%d", i) + 1; |
c2f5bfd6 KH |
1249 | } |
1250 | else | |
ec6fe57c KH |
1251 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1252 | ||
35027d0c | 1253 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1254 | { |
35027d0c KH |
1255 | i = XINT (AREF (font, FONT_DPI_INDEX)); |
1256 | f[XLFD_RESX_INDEX] = alloca (22); | |
1257 | len += sprintf (f[XLFD_RESX_INDEX], | |
1258 | "%d-%d", i, i) + 1; | |
c2f5bfd6 KH |
1259 | } |
1260 | else | |
35027d0c KH |
1261 | f[XLFD_RESX_INDEX] = "*-*", len += 4; |
1262 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
ec6fe57c | 1263 | { |
35027d0c | 1264 | int spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1265 | |
35027d0c KH |
1266 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1267 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1268 | : spacing <= FONT_SPACING_MONO ? "m" | |
1269 | : "c"); | |
1270 | len += 2; | |
ec6fe57c | 1271 | } |
35027d0c KH |
1272 | else |
1273 | f[XLFD_SPACING_INDEX] = "*", len += 2; | |
1274 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1275 | { | |
1276 | f[XLFD_AVGWIDTH_INDEX] = alloca (11); | |
c56c14a1 AR |
1277 | len += sprintf (f[XLFD_AVGWIDTH_INDEX], "%ld", |
1278 | (long) XINT (AREF (font, FONT_AVGWIDTH_INDEX))) + 1; | |
35027d0c KH |
1279 | } |
1280 | else | |
1281 | f[XLFD_AVGWIDTH_INDEX] = "*", len += 2; | |
ec6fe57c | 1282 | len++; /* for terminating '\0'. */ |
c2f5bfd6 KH |
1283 | if (len >= nbytes) |
1284 | return -1; | |
35027d0c | 1285 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1286 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1287 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1288 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1289 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1290 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1291 | f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1292 | } |
1293 | ||
8c102d5b CY |
1294 | /* Parse NAME (null terminated) and store information in FONT |
1295 | (font-spec or font-entity). NAME is supplied in either the | |
1296 | Fontconfig or GTK font name format. If NAME is successfully | |
1297 | parsed, return 0. Otherwise return -1. | |
1298 | ||
1299 | The fontconfig format is | |
1300 | ||
1301 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1302 | ||
1303 | The GTK format is | |
1304 | ||
1305 | FAMILY [PROPS...] [SIZE] | |
1306 | ||
1307 | This function tries to guess which format it is. */ | |
ef18374f | 1308 | |
2f7c71a1 | 1309 | static int |
09d93395 | 1310 | font_parse_fcname (char *name, Lisp_Object font) |
ef18374f | 1311 | { |
8c102d5b CY |
1312 | char *p, *q; |
1313 | char *size_beg = NULL, *size_end = NULL; | |
1314 | char *props_beg = NULL, *family_end = NULL; | |
9331887d | 1315 | int len = strlen (name); |
ef18374f | 1316 | |
ec6fe57c KH |
1317 | if (len == 0) |
1318 | return -1; | |
8c102d5b CY |
1319 | |
1320 | for (p = name; *p; p++) | |
ef18374f | 1321 | { |
8c102d5b CY |
1322 | if (*p == '\\' && p[1]) |
1323 | p++; | |
1324 | else if (*p == ':') | |
ef18374f | 1325 | { |
59facb78 | 1326 | props_beg = family_end = p; |
8c102d5b CY |
1327 | break; |
1328 | } | |
1329 | else if (*p == '-') | |
1330 | { | |
b1868a1a | 1331 | int decimal = 0, size_found = 1; |
8c102d5b | 1332 | for (q = p + 1; *q && *q != ':'; q++) |
b1868a1a | 1333 | if (! isdigit(*q)) |
8c102d5b | 1334 | { |
b1868a1a CY |
1335 | if (*q != '.' || decimal) |
1336 | { | |
1337 | size_found = 0; | |
1338 | break; | |
1339 | } | |
1340 | decimal = 1; | |
8c102d5b CY |
1341 | } |
1342 | if (size_found) | |
1343 | { | |
1344 | family_end = p; | |
1345 | size_beg = p + 1; | |
1346 | size_end = q; | |
1347 | break; | |
1348 | } | |
ef18374f | 1349 | } |
ef18374f | 1350 | } |
9331887d | 1351 | |
8c102d5b CY |
1352 | if (family_end) |
1353 | { | |
637fa988 JD |
1354 | Lisp_Object extra_props = Qnil; |
1355 | ||
8c102d5b CY |
1356 | /* A fontconfig name with size and/or property data. */ |
1357 | if (family_end > name) | |
1358 | { | |
1359 | Lisp_Object family; | |
1360 | family = font_intern_prop (name, family_end - name, 1); | |
1361 | ASET (font, FONT_FAMILY_INDEX, family); | |
1362 | } | |
1363 | if (size_beg) | |
1364 | { | |
1365 | double point_size = strtod (size_beg, &size_end); | |
1366 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1367 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1368 | props_beg = size_end; |
8c102d5b CY |
1369 | } |
1370 | if (props_beg) | |
1371 | { | |
d26424c5 | 1372 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1373 | Lisp_Object val; |
8c102d5b | 1374 | |
59facb78 | 1375 | for (p = props_beg; *p; p = q) |
8c102d5b | 1376 | { |
8c102d5b | 1377 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1378 | if (*q != '=') |
1379 | { | |
1380 | /* Must be an enumerated value. */ | |
59facb78 CY |
1381 | int word_len; |
1382 | p = p + 1; | |
1383 | word_len = q - p; | |
8c102d5b | 1384 | val = font_intern_prop (p, q - p, 1); |
9277a69d CY |
1385 | |
1386 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1387 | ||
8c102d5b CY |
1388 | if (PROP_MATCH ("light", 5) |
1389 | || PROP_MATCH ("medium", 6) | |
1390 | || PROP_MATCH ("demibold", 8) | |
1391 | || PROP_MATCH ("bold", 4) | |
1392 | || PROP_MATCH ("black", 5)) | |
1393 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); | |
1394 | else if (PROP_MATCH ("roman", 5) | |
1395 | || PROP_MATCH ("italic", 6) | |
1396 | || PROP_MATCH ("oblique", 7)) | |
1397 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); | |
1398 | else if (PROP_MATCH ("charcell", 8)) | |
1399 | ASET (font, FONT_SPACING_INDEX, | |
1400 | make_number (FONT_SPACING_CHARCELL)); | |
1401 | else if (PROP_MATCH ("mono", 4)) | |
1402 | ASET (font, FONT_SPACING_INDEX, | |
1403 | make_number (FONT_SPACING_MONO)); | |
1404 | else if (PROP_MATCH ("proportional", 12)) | |
1405 | ASET (font, FONT_SPACING_INDEX, | |
1406 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1407 | #undef PROP_MATCH |
8c102d5b | 1408 | } |
59facb78 | 1409 | else |
8c102d5b | 1410 | { |
59facb78 | 1411 | /* KEY=VAL pairs */ |
8c102d5b | 1412 | Lisp_Object key; |
59facb78 | 1413 | int prop; |
51c01100 | 1414 | |
59facb78 | 1415 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1416 | prop = FONT_SIZE_INDEX; |
1417 | else | |
1418 | { | |
1419 | key = font_intern_prop (p, q - p, 1); | |
1420 | prop = get_font_prop_index (key); | |
1421 | } | |
77989187 | 1422 | |
8c102d5b CY |
1423 | p = q + 1; |
1424 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1425 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1426 | |
d26424c5 KH |
1427 | if (prop >= FONT_FOUNDRY_INDEX |
1428 | && prop < FONT_EXTRA_INDEX) | |
637fa988 | 1429 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); |
ce75f06e | 1430 | else |
637fa988 JD |
1431 | { |
1432 | extra_props = nconc2 (extra_props, | |
1433 | Fcons (Fcons (key, val), Qnil)); | |
1434 | } | |
8c102d5b | 1435 | } |
d26424c5 | 1436 | p = q; |
8c102d5b | 1437 | } |
8c102d5b | 1438 | } |
637fa988 JD |
1439 | |
1440 | if (! NILP (extra_props)) | |
1441 | { | |
1442 | struct font_driver_list *driver_list = font_driver_list; | |
1443 | for ( ; driver_list; driver_list = driver_list->next) | |
1444 | if (driver_list->driver->filter_properties) | |
1445 | (*driver_list->driver->filter_properties) (font, extra_props); | |
1446 | } | |
ce75f06e | 1447 | |
8c102d5b CY |
1448 | } |
1449 | else | |
ef18374f | 1450 | { |
8c102d5b CY |
1451 | /* Either a fontconfig-style name with no size and property |
1452 | data, or a GTK-style name. */ | |
1453 | Lisp_Object prop; | |
1454 | int word_len, prop_found = 0; | |
ef18374f | 1455 | |
8c102d5b | 1456 | for (p = name; *p; p = *q ? q + 1 : q) |
ef18374f | 1457 | { |
8c102d5b | 1458 | if (isdigit (*p)) |
9331887d | 1459 | { |
8c102d5b | 1460 | int size_found = 1; |
7181ea6a | 1461 | |
8c102d5b | 1462 | for (q = p + 1; *q && *q != ' '; q++) |
32a679fd | 1463 | if (! isdigit (*q) && *q != '.') |
8c102d5b CY |
1464 | { |
1465 | size_found = 0; | |
1466 | break; | |
1467 | } | |
1468 | if (size_found) | |
1469 | { | |
1470 | double point_size = strtod (p, &q); | |
1471 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1472 | continue; | |
1473 | } | |
027a33c0 | 1474 | } |
8c102d5b CY |
1475 | |
1476 | for (q = p + 1; *q && *q != ' '; q++) | |
1477 | if (*q == '\\' && q[1]) | |
1478 | q++; | |
1479 | word_len = q - p; | |
1480 | ||
1481 | #define PROP_MATCH(STR,N) ((word_len == N) && memcmp (p, STR, N) == 0) | |
1482 | ||
1483 | if (PROP_MATCH ("Ultra-Light", 11)) | |
9331887d | 1484 | { |
8c102d5b CY |
1485 | prop_found = 1; |
1486 | prop = font_intern_prop ("ultra-light", 11, 1); | |
1487 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1488 | } |
8c102d5b | 1489 | else if (PROP_MATCH ("Light", 5)) |
9331887d | 1490 | { |
8c102d5b CY |
1491 | prop_found = 1; |
1492 | prop = font_intern_prop ("light", 5, 1); | |
1493 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
9331887d | 1494 | } |
fe69a722 CY |
1495 | else if (PROP_MATCH ("Book", 4)) |
1496 | { | |
1497 | prop_found = 1; | |
1498 | prop = font_intern_prop ("book", 4, 1); | |
1499 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1500 | } | |
4ed28cf4 CY |
1501 | else if (PROP_MATCH ("Medium", 6)) |
1502 | { | |
1503 | prop_found = 1; | |
1504 | prop = font_intern_prop ("medium", 6, 1); | |
1505 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1506 | } | |
8c102d5b | 1507 | else if (PROP_MATCH ("Semi-Bold", 9)) |
9331887d | 1508 | { |
8c102d5b CY |
1509 | prop_found = 1; |
1510 | prop = font_intern_prop ("semi-bold", 9, 1); | |
1511 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
1512 | } | |
1513 | else if (PROP_MATCH ("Bold", 4)) | |
1514 | { | |
1515 | prop_found = 1; | |
1516 | prop = font_intern_prop ("bold", 4, 1); | |
1517 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, prop); | |
ef18374f | 1518 | } |
8c102d5b CY |
1519 | else if (PROP_MATCH ("Italic", 6)) |
1520 | { | |
1521 | prop_found = 1; | |
1522 | prop = font_intern_prop ("italic", 4, 1); | |
1523 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1524 | } | |
1525 | else if (PROP_MATCH ("Oblique", 7)) | |
1526 | { | |
1527 | prop_found = 1; | |
1528 | prop = font_intern_prop ("oblique", 7, 1); | |
1529 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, prop); | |
1530 | } | |
fe69a722 CY |
1531 | else if (PROP_MATCH ("Semi-Condensed", 14)) |
1532 | { | |
1533 | prop_found = 1; | |
1534 | prop = font_intern_prop ("semi-condensed", 14, 1); | |
1535 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, prop); | |
1536 | } | |
1537 | else if (PROP_MATCH ("Condensed", 9)) | |
1538 | { | |
1539 | prop_found = 1; | |
1540 | prop = font_intern_prop ("condensed", 9, 1); | |
1541 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, prop); | |
1542 | } | |
8c102d5b CY |
1543 | else { |
1544 | if (prop_found) | |
1545 | return -1; /* Unknown property in GTK-style font name. */ | |
1546 | family_end = q; | |
1547 | } | |
ef18374f | 1548 | } |
8c102d5b | 1549 | #undef PROP_MATCH |
9ba6fd41 | 1550 | |
8c102d5b CY |
1551 | if (family_end) |
1552 | { | |
1553 | Lisp_Object family; | |
1554 | family = font_intern_prop (name, family_end - name, 1); | |
1555 | ASET (font, FONT_FAMILY_INDEX, family); | |
1556 | } | |
1557 | } | |
17ab8f5d | 1558 | |
9331887d | 1559 | return 0; |
ef18374f KH |
1560 | } |
1561 | ||
1562 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1563 | NAME (NBYTES length), and return the name length. If | |
1564 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1565 | ||
1566 | int | |
09d93395 | 1567 | font_unparse_fcname (Lisp_Object font, int pixel_size, char *name, int nbytes) |
ef18374f | 1568 | { |
b1868a1a | 1569 | Lisp_Object family, foundry; |
35027d0c | 1570 | Lisp_Object tail, val; |
ec6fe57c | 1571 | int point_size; |
ec6fe57c | 1572 | int i, len = 1; |
ef18374f | 1573 | char *p; |
a9262bb8 | 1574 | Lisp_Object styles[3]; |
675e2c69 | 1575 | const char *style_names[3] = { "weight", "slant", "width" }; |
35027d0c | 1576 | char work[256]; |
ef18374f | 1577 | |
b1868a1a CY |
1578 | family = AREF (font, FONT_FAMILY_INDEX); |
1579 | if (! NILP (family)) | |
1580 | { | |
1581 | if (SYMBOLP (family)) | |
1582 | { | |
1583 | family = SYMBOL_NAME (family); | |
1584 | len += SBYTES (family); | |
1585 | } | |
1586 | else | |
1587 | family = Qnil; | |
1588 | } | |
ec6fe57c KH |
1589 | |
1590 | val = AREF (font, FONT_SIZE_INDEX); | |
1591 | if (INTEGERP (val)) | |
ef18374f | 1592 | { |
ec6fe57c KH |
1593 | if (XINT (val) != 0) |
1594 | pixel_size = XINT (val); | |
1595 | point_size = -1; | |
1596 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1597 | } |
ec6fe57c | 1598 | else if (FLOATP (val)) |
ef18374f | 1599 | { |
ec6fe57c KH |
1600 | pixel_size = -1; |
1601 | point_size = (int) XFLOAT_DATA (val); | |
1602 | len += 11; /* for "-NUM" */ | |
ef18374f | 1603 | } |
ec6fe57c | 1604 | |
b1868a1a CY |
1605 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1606 | if (! NILP (foundry)) | |
1607 | { | |
1608 | if (SYMBOLP (foundry)) | |
1609 | { | |
1610 | foundry = SYMBOL_NAME (foundry); | |
1611 | len += 9 + SBYTES (foundry); /* ":foundry=NAME" */ | |
1612 | } | |
1613 | else | |
1614 | foundry = Qnil; | |
1615 | } | |
ec6fe57c | 1616 | |
35027d0c | 1617 | for (i = 0; i < 3; i++) |
a9262bb8 | 1618 | { |
35027d0c KH |
1619 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
1620 | if (! NILP (styles[i])) | |
1621 | len += sprintf (work, ":%s=%s", style_names[i], | |
1622 | SDATA (SYMBOL_NAME (styles[i]))); | |
ec6fe57c | 1623 | } |
35027d0c KH |
1624 | |
1625 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c56c14a1 | 1626 | len += sprintf (work, ":dpi=%ld", (long)XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c KH |
1627 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
1628 | len += strlen (":spacing=100"); | |
1629 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1630 | len += strlen (":scalable=false"); /* or ":scalable=true" */ | |
1631 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
ec6fe57c | 1632 | { |
35027d0c KH |
1633 | Lisp_Object key = XCAR (XCAR (tail)), val = XCDR (XCAR (tail)); |
1634 | ||
1635 | len += SBYTES (SYMBOL_NAME (key)) + 1; /* for :KEY= */ | |
1636 | if (STRINGP (val)) | |
1637 | len += SBYTES (val); | |
1638 | else if (INTEGERP (val)) | |
c56c14a1 | 1639 | len += sprintf (work, "%ld", (long) XINT (val)); |
35027d0c KH |
1640 | else if (SYMBOLP (val)) |
1641 | len += (NILP (val) ? 5 : 4); /* for "false" or "true" */ | |
ec6fe57c KH |
1642 | } |
1643 | ||
ef18374f KH |
1644 | if (len > nbytes) |
1645 | return -1; | |
1646 | p = name; | |
b1868a1a CY |
1647 | if (! NILP (family)) |
1648 | p += sprintf (p, "%s", SDATA (family)); | |
ec6fe57c KH |
1649 | if (point_size > 0) |
1650 | { | |
1651 | if (p == name) | |
1652 | p += sprintf (p, "%d", point_size); | |
1653 | else | |
1654 | p += sprintf (p, "-%d", point_size); | |
1655 | } | |
ef18374f KH |
1656 | else if (pixel_size > 0) |
1657 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
35027d0c | 1658 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
a9262bb8 KH |
1659 | p += sprintf (p, ":foundry=%s", |
1660 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1661 | for (i = 0; i < 3; i++) | |
35027d0c | 1662 | if (! NILP (styles[i])) |
a9262bb8 | 1663 | p += sprintf (p, ":%s=%s", style_names[i], |
35027d0c KH |
1664 | SDATA (SYMBOL_NAME (styles[i]))); |
1665 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c56c14a1 | 1666 | p += sprintf (p, ":dpi=%ld", (long) XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c | 1667 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
c56c14a1 AR |
1668 | p += sprintf (p, ":spacing=%ld", |
1669 | (long) XINT (AREF (font, FONT_SPACING_INDEX))); | |
35027d0c KH |
1670 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
1671 | { | |
1672 | if (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0) | |
1673 | p += sprintf (p, ":scalable=true"); | |
1674 | else | |
1675 | p += sprintf (p, ":scalable=false"); | |
1676 | } | |
ef18374f KH |
1677 | return (p - name); |
1678 | } | |
1679 | ||
1680 | /* Parse NAME (null terminated) and store information in FONT | |
1681 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1682 | 0. Otherwise return -1. */ |
ef18374f KH |
1683 | |
1684 | static int | |
09d93395 | 1685 | font_parse_name (char *name, Lisp_Object font) |
ef18374f | 1686 | { |
8966b757 | 1687 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
e950d6f1 | 1688 | return font_parse_xlfd (name, font); |
ec6fe57c | 1689 | return font_parse_fcname (name, font); |
ef18374f KH |
1690 | } |
1691 | ||
35027d0c KH |
1692 | |
1693 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1694 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1695 | part. */ | |
45eb10fb | 1696 | |
c2f5bfd6 | 1697 | void |
971de7fb | 1698 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1699 | { |
35027d0c KH |
1700 | int len; |
1701 | char *p0, *p1; | |
1702 | ||
d0ab1ebe KH |
1703 | if (! NILP (family) |
1704 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1705 | { |
35027d0c KH |
1706 | CHECK_STRING (family); |
1707 | len = SBYTES (family); | |
1708 | p0 = (char *) SDATA (family); | |
8966b757 | 1709 | p1 = strchr (p0, '-'); |
35027d0c | 1710 | if (p1) |
c2f5bfd6 | 1711 | { |
9903d1e6 | 1712 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1713 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1714 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1715 | p1++; |
1716 | len -= p1 - p0; | |
2f286d4f | 1717 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1718 | } |
35027d0c KH |
1719 | else |
1720 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1721 | } |
35027d0c | 1722 | if (! NILP (registry)) |
c2f5bfd6 | 1723 | { |
35027d0c KH |
1724 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1725 | CHECK_STRING (registry); | |
1726 | len = SBYTES (registry); | |
1727 | p0 = (char *) SDATA (registry); | |
8966b757 | 1728 | p1 = strchr (p0, '-'); |
35027d0c | 1729 | if (! p1) |
c2f5bfd6 | 1730 | { |
35027d0c KH |
1731 | if (SDATA (registry)[len - 1] == '*') |
1732 | registry = concat2 (registry, build_string ("-*")); | |
1733 | else | |
1734 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1735 | } |
35027d0c KH |
1736 | registry = Fdowncase (registry); |
1737 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1738 | } |
1739 | } | |
1740 | ||
45eb10fb | 1741 | \f |
35027d0c KH |
1742 | /* This part (through the next ^L) is still experimental and not |
1743 | tested much. We may drastically change codes. */ | |
10d16101 | 1744 | |
45eb10fb | 1745 | /* OTF handler */ |
10d16101 | 1746 | |
6a3dadd2 KH |
1747 | #if 0 |
1748 | ||
e950d6f1 KH |
1749 | #define LGSTRING_HEADER_SIZE 6 |
1750 | #define LGSTRING_GLYPH_SIZE 8 | |
1751 | ||
1752 | static int | |
1753 | check_gstring (gstring) | |
1754 | Lisp_Object gstring; | |
1755 | { | |
1756 | Lisp_Object val; | |
1757 | int i, j; | |
1758 | ||
1759 | CHECK_VECTOR (gstring); | |
1760 | val = AREF (gstring, 0); | |
1761 | CHECK_VECTOR (val); | |
1762 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1763 | goto err; | |
1764 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1765 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1766 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1767 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1768 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1769 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1770 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1771 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1772 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1773 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1774 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1775 | |
071132a9 | 1776 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1777 | { |
1778 | val = LGSTRING_GLYPH (gstring, i); | |
1779 | CHECK_VECTOR (val); | |
1780 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1781 | goto err; | |
f9ffa1ea | 1782 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1783 | break; |
f9ffa1ea SM |
1784 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1785 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1786 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1787 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1788 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1789 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1790 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1791 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1792 | { |
f9ffa1ea | 1793 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1794 | CHECK_VECTOR (val); |
1795 | if (ASIZE (val) < 3) | |
1796 | goto err; | |
1797 | for (j = 0; j < 3; j++) | |
1798 | CHECK_NUMBER (AREF (val, j)); | |
1799 | } | |
1800 | } | |
1801 | return i; | |
1802 | err: | |
1803 | error ("Invalid glyph-string format"); | |
1804 | return -1; | |
1805 | } | |
1806 | ||
cf385d93 KH |
1807 | static void |
1808 | check_otf_features (otf_features) | |
1809 | Lisp_Object otf_features; | |
1810 | { | |
35027d0c | 1811 | Lisp_Object val; |
cf385d93 KH |
1812 | |
1813 | CHECK_CONS (otf_features); | |
1814 | CHECK_SYMBOL (XCAR (otf_features)); | |
1815 | otf_features = XCDR (otf_features); | |
1816 | CHECK_CONS (otf_features); | |
1817 | CHECK_SYMBOL (XCAR (otf_features)); | |
1818 | otf_features = XCDR (otf_features); | |
1819 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1820 | { | |
1821 | CHECK_SYMBOL (Fcar (val)); | |
1822 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1823 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1824 | } | |
1825 | otf_features = XCDR (otf_features); | |
1826 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1827 | { | |
1828 | CHECK_SYMBOL (Fcar (val)); | |
1829 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1830 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1831 | } | |
1832 | } | |
1833 | ||
c2f5bfd6 KH |
1834 | #ifdef HAVE_LIBOTF |
1835 | #include <otf.h> | |
1836 | ||
733fd013 | 1837 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1838 | |
1839 | static Lisp_Object | |
1840 | otf_tag_symbol (tag) | |
1841 | OTF_Tag tag; | |
1842 | { | |
1843 | char name[5]; | |
1844 | ||
1845 | OTF_tag_name (tag, name); | |
1846 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1847 | } | |
1848 | ||
1849 | static OTF * | |
35027d0c KH |
1850 | otf_open (file) |
1851 | Lisp_Object file; | |
c2f5bfd6 | 1852 | { |
35027d0c | 1853 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1854 | OTF *otf; |
1855 | ||
1856 | if (! NILP (val)) | |
1857 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1858 | else | |
c2f5bfd6 | 1859 | { |
35027d0c | 1860 | otf = STRINGP (file) ? OTF_open ((char *) SDATA (file)) : NULL; |
733fd013 | 1861 | val = make_save_value (otf, 0); |
35027d0c | 1862 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1863 | } |
733fd013 | 1864 | return otf; |
c2f5bfd6 KH |
1865 | } |
1866 | ||
1867 | ||
1868 | /* Return a list describing which scripts/languages FONT supports by | |
1869 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1870 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1871 | |
1872 | Lisp_Object | |
1873 | font_otf_capability (font) | |
1874 | struct font *font; | |
1875 | { | |
1876 | OTF *otf; | |
1877 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1878 | int i; | |
1879 | ||
35027d0c | 1880 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1881 | if (! otf) |
1882 | return Qnil; | |
1883 | for (i = 0; i < 2; i++) | |
1884 | { | |
1885 | OTF_GSUB_GPOS *gsub_gpos; | |
1886 | Lisp_Object script_list = Qnil; | |
1887 | int j; | |
1888 | ||
1889 | if (OTF_get_features (otf, i == 0) < 0) | |
1890 | continue; | |
1891 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1892 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1893 | { | |
1894 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1895 | Lisp_Object langsys_list = Qnil; | |
1896 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1897 | int k; | |
1898 | ||
1899 | for (k = script->LangSysCount; k >= 0; k--) | |
1900 | { | |
1901 | OTF_LangSys *langsys; | |
1902 | Lisp_Object feature_list = Qnil; | |
1903 | Lisp_Object langsys_tag; | |
1904 | int l; | |
1905 | ||
e80e09b4 | 1906 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1907 | { |
1908 | langsys = &script->DefaultLangSys; | |
1909 | langsys_tag = Qnil; | |
1910 | } | |
1911 | else | |
1912 | { | |
1913 | langsys = script->LangSys + k; | |
1914 | langsys_tag | |
1915 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1916 | } | |
e80e09b4 | 1917 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1918 | { |
1919 | OTF_Feature *feature | |
1920 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1921 | Lisp_Object feature_tag | |
1922 | = otf_tag_symbol (feature->FeatureTag); | |
1923 | ||
1924 | feature_list = Fcons (feature_tag, feature_list); | |
1925 | } | |
1926 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1927 | langsys_list); | |
1928 | } | |
1929 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1930 | script_list); | |
1931 | } | |
1932 | ||
1933 | if (i == 0) | |
1934 | XSETCAR (capability, script_list); | |
1935 | else | |
1936 | XSETCDR (capability, script_list); | |
1937 | } | |
1938 | ||
1939 | return capability; | |
1940 | } | |
1941 | ||
733fd013 KH |
1942 | /* Parse OTF features in SPEC and write a proper features spec string |
1943 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1944 | assured that the sufficient memory has already allocated for | |
1945 | FEATURES. */ | |
1946 | ||
e80e09b4 | 1947 | static void |
733fd013 | 1948 | generate_otf_features (spec, features) |
c2f5bfd6 | 1949 | Lisp_Object spec; |
733fd013 | 1950 | char *features; |
c2f5bfd6 KH |
1951 | { |
1952 | Lisp_Object val; | |
35027d0c | 1953 | char *p; |
c2f5bfd6 KH |
1954 | int asterisk; |
1955 | ||
733fd013 | 1956 | p = features; |
e80e09b4 | 1957 | *p = '\0'; |
c2f5bfd6 KH |
1958 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1959 | { | |
1960 | val = XCAR (spec); | |
e80e09b4 KH |
1961 | CHECK_SYMBOL (val); |
1962 | if (p > features) | |
733fd013 | 1963 | *p++ = ','; |
c2f5bfd6 KH |
1964 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1965 | { | |
1966 | asterisk = 1; | |
e80e09b4 | 1967 | *p++ = '*'; |
c2f5bfd6 KH |
1968 | } |
1969 | else if (! asterisk) | |
e80e09b4 KH |
1970 | { |
1971 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1972 | p += sprintf (p, "%s", SDATA (val)); |
1973 | } | |
c2f5bfd6 | 1974 | else |
e80e09b4 KH |
1975 | { |
1976 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1977 | p += sprintf (p, "~%s", SDATA (val)); |
1978 | } | |
c2f5bfd6 | 1979 | } |
e80e09b4 KH |
1980 | if (CONSP (spec)) |
1981 | error ("OTF spec too long"); | |
1982 | } | |
1983 | ||
733fd013 KH |
1984 | Lisp_Object |
1985 | font_otf_DeviceTable (device_table) | |
1986 | OTF_DeviceTable *device_table; | |
1987 | { | |
1988 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1989 | ||
1990 | return Fcons (make_number (len), | |
1991 | make_unibyte_string (device_table->DeltaValue, len)); | |
1992 | } | |
1993 | ||
1994 | Lisp_Object | |
1995 | font_otf_ValueRecord (value_format, value_record) | |
1996 | int value_format; | |
1997 | OTF_ValueRecord *value_record; | |
1998 | { | |
1999 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
2000 | ||
2001 | if (value_format & OTF_XPlacement) | |
43c0454d | 2002 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 2003 | if (value_format & OTF_YPlacement) |
43c0454d | 2004 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 2005 | if (value_format & OTF_XAdvance) |
43c0454d | 2006 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 2007 | if (value_format & OTF_YAdvance) |
43c0454d | 2008 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
2009 | if (value_format & OTF_XPlaDevice) |
2010 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
2011 | if (value_format & OTF_YPlaDevice) | |
2012 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
2013 | if (value_format & OTF_XAdvDevice) | |
2014 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
2015 | if (value_format & OTF_YAdvDevice) | |
2016 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
2017 | return val; | |
2018 | } | |
2019 | ||
2020 | Lisp_Object | |
2021 | font_otf_Anchor (anchor) | |
2022 | OTF_Anchor *anchor; | |
2023 | { | |
2024 | Lisp_Object val; | |
2025 | ||
2026 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2027 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2028 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2029 | if (anchor->AnchorFormat == 2) | |
2030 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2031 | else | |
2032 | { | |
2033 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2034 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2035 | } | |
2036 | return val; | |
2037 | } | |
c2f5bfd6 | 2038 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2039 | #endif /* 0 */ |
c2f5bfd6 | 2040 | |
c2f5bfd6 KH |
2041 | \f |
2042 | /* Font sorting */ | |
2043 | ||
f57e2426 J |
2044 | static unsigned font_score (Lisp_Object, Lisp_Object *); |
2045 | static int font_compare (const void *, const void *); | |
2046 | static Lisp_Object font_sort_entities (Lisp_Object, Lisp_Object, | |
2047 | Lisp_Object, int); | |
c2f5bfd6 | 2048 | |
55e41770 | 2049 | static double |
971de7fb | 2050 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
2051 | { |
2052 | Lisp_Object tail, elt; | |
2053 | Lisp_Object name = Qnil; | |
2054 | ||
2055 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2056 | { | |
2057 | elt = XCAR (tail); | |
2058 | if (FLOATP (XCDR (elt))) | |
2059 | { | |
2060 | if (STRINGP (XCAR (elt))) | |
2061 | { | |
2062 | if (NILP (name)) | |
2063 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2064 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2065 | return XFLOAT_DATA (XCDR (elt)); | |
2066 | } | |
2067 | else if (FONT_SPEC_P (XCAR (elt))) | |
2068 | { | |
2069 | if (font_match_p (XCAR (elt), font_entity)) | |
2070 | return XFLOAT_DATA (XCDR (elt)); | |
2071 | } | |
2072 | } | |
2073 | } | |
2074 | return 1.0; | |
2075 | } | |
2076 | ||
c2f5bfd6 KH |
2077 | /* We sort fonts by scoring each of them against a specified |
2078 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2079 | the value is, the closer the font is to the font-spec. | |
2080 | ||
4007dd1c KH |
2081 | The lowest 2 bits of the score is used for driver type. The font |
2082 | available by the most preferred font driver is 0. | |
35027d0c | 2083 | |
4007dd1c | 2084 | Each 7-bit in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2085 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2086 | ||
2087 | /* How many bits to shift to store the difference value of each font | |
35027d0c KH |
2088 | property in a score. Note that flots for FONT_TYPE_INDEX and |
2089 | FONT_REGISTRY_INDEX are not used. */ | |
c2f5bfd6 KH |
2090 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2091 | ||
9331887d KH |
2092 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2093 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2094 | SPEC_PROP. */ |
c2f5bfd6 KH |
2095 | |
2096 | static unsigned | |
971de7fb | 2097 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2098 | { |
2099 | unsigned score = 0; | |
2100 | int i; | |
c2f5bfd6 | 2101 | |
35027d0c KH |
2102 | /* Score three style numeric fields. Maximum difference is 127. */ |
2103 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2104 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2105 | { | |
2106 | int diff = (XINT (AREF (entity, i)) >> 8) - (XINT (spec_prop[i]) >> 8); | |
2107 | ||
2108 | if (diff < 0) | |
2109 | diff = - diff; | |
f4cc0153 KH |
2110 | if (diff > 0) |
2111 | score |= min (diff, 127) << sort_shift_bits[i]; | |
35027d0c KH |
2112 | } |
2113 | ||
2114 | /* Score the size. Maximum difference is 127. */ | |
2115 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2116 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2117 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2118 | { |
2119 | /* We use the higher 6-bit for the actual size difference. The | |
2120 | lowest bit is set if the DPI is different. */ | |
55e41770 KH |
2121 | int diff; |
2122 | int pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2123 | |
55e41770 KH |
2124 | if (CONSP (Vface_font_rescale_alist)) |
2125 | pixel_size *= font_rescale_ratio (entity); | |
2126 | diff = pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX)); | |
35027d0c KH |
2127 | if (diff < 0) |
2128 | diff = - diff; | |
d0ab1ebe | 2129 | diff <<= 1; |
35027d0c KH |
2130 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2131 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2132 | diff |= 1; | |
c0a6070d KH |
2133 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2134 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2135 | diff |= 1; | |
35027d0c | 2136 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2137 | } |
2138 | ||
2139 | return score; | |
2140 | } | |
2141 | ||
2142 | ||
72d36834 KH |
2143 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2144 | of font-entity vectors. */ | |
c2f5bfd6 | 2145 | |
72d36834 KH |
2146 | static Lisp_Object |
2147 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2148 | { |
72d36834 KH |
2149 | int nargs = XINT (Flength (list)); |
2150 | Lisp_Object *args = alloca (sizeof (Lisp_Object) * nargs); | |
2151 | int i; | |
2152 | ||
2153 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2154 | args[i] = XCAR (list); | |
2155 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2156 | } |
2157 | ||
2158 | ||
2159 | /* The structure for elements being sorted by qsort. */ | |
2160 | struct font_sort_data | |
2161 | { | |
2162 | unsigned score; | |
72d36834 | 2163 | int font_driver_preference; |
c2f5bfd6 KH |
2164 | Lisp_Object entity; |
2165 | }; | |
2166 | ||
2167 | ||
72d36834 KH |
2168 | /* The comparison function for qsort. */ |
2169 | ||
2170 | static int | |
971de7fb | 2171 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2172 | { |
2173 | const struct font_sort_data *data1 = d1; | |
2174 | const struct font_sort_data *data2 = d2; | |
2175 | ||
2176 | if (data1->score < data2->score) | |
2177 | return -1; | |
2178 | else if (data1->score > data2->score) | |
2179 | return 1; | |
2180 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2181 | } | |
2182 | ||
2183 | ||
2184 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2185 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2186 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2187 | of FRAME before sorting. |
35027d0c | 2188 | |
c9477f01 KH |
2189 | If BEST-ONLY is nonzero, return the best matching entity (that |
2190 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2191 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2192 | a single vector of font-entities. | |
c9477f01 | 2193 | |
72d36834 KH |
2194 | This function does no optimization for the case that the total |
2195 | number of elements is 1. The caller should avoid calling this in | |
2196 | such a case. */ | |
c2f5bfd6 KH |
2197 | |
2198 | static Lisp_Object | |
971de7fb | 2199 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, Lisp_Object frame, int best_only) |
c2f5bfd6 | 2200 | { |
9331887d | 2201 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2202 | int len, maxlen, i; |
c2f5bfd6 | 2203 | struct font_sort_data *data; |
35027d0c | 2204 | unsigned best_score; |
72d36834 | 2205 | Lisp_Object best_entity; |
4007dd1c | 2206 | struct frame *f = XFRAME (frame); |
72d36834 | 2207 | Lisp_Object tail, vec; |
c2f5bfd6 KH |
2208 | USE_SAFE_ALLOCA; |
2209 | ||
9903d1e6 | 2210 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2211 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2212 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2213 | prefer_prop[FONT_SIZE_INDEX] | |
2214 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2215 | ||
72d36834 KH |
2216 | if (NILP (XCDR (list))) |
2217 | { | |
2218 | /* What we have to take care of is this single vector. */ | |
2219 | vec = XCAR (list); | |
2220 | maxlen = ASIZE (vec); | |
2221 | } | |
2222 | else if (best_only) | |
2223 | { | |
2224 | /* We don't have to perform sort, so there's no need of creating | |
2225 | a single vector. But, we must find the length of the longest | |
2226 | vector. */ | |
2227 | maxlen = 0; | |
2228 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2229 | if (maxlen < ASIZE (XCAR (tail))) | |
2230 | maxlen = ASIZE (XCAR (tail)); | |
2231 | } | |
2232 | else | |
2233 | { | |
2234 | /* We have to create a single vector to sort it. */ | |
2235 | vec = font_vconcat_entity_vectors (list); | |
2236 | maxlen = ASIZE (vec); | |
2237 | } | |
2238 | ||
2239 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * maxlen); | |
c9477f01 KH |
2240 | best_score = 0xFFFFFFFF; |
2241 | best_entity = Qnil; | |
72d36834 KH |
2242 | |
2243 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2244 | { |
72d36834 KH |
2245 | int font_driver_preference = 0; |
2246 | Lisp_Object current_font_driver; | |
ce75f06e | 2247 | |
72d36834 KH |
2248 | if (best_only) |
2249 | vec = XCAR (tail); | |
2250 | len = ASIZE (vec); | |
2251 | ||
2252 | /* We are sure that the length of VEC > 0. */ | |
2253 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2254 | /* Score the elements. */ | |
2255 | for (i = 0; i < len; i++) | |
35027d0c | 2256 | { |
72d36834 KH |
2257 | data[i].entity = AREF (vec, i); |
2258 | data[i].score | |
2259 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2260 | > 0) | |
2261 | ? font_score (data[i].entity, prefer_prop) | |
2262 | : 0xFFFFFFFF); | |
2263 | if (best_only && best_score > data[i].score) | |
2264 | { | |
2265 | best_score = data[i].score; | |
2266 | best_entity = data[i].entity; | |
2267 | if (best_score == 0) | |
2268 | break; | |
2269 | } | |
2270 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2271 | { | |
2272 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2273 | font_driver_preference++; | |
2274 | } | |
2275 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2276 | } |
72d36834 KH |
2277 | |
2278 | /* Sort if necessary. */ | |
2279 | if (! best_only) | |
2280 | { | |
2281 | qsort (data, len, sizeof *data, font_compare); | |
2282 | for (i = 0; i < len; i++) | |
2283 | ASET (vec, i, data[i].entity); | |
2284 | break; | |
2285 | } | |
2286 | else | |
2287 | vec = best_entity; | |
c2f5bfd6 | 2288 | } |
72d36834 | 2289 | |
c2f5bfd6 KH |
2290 | SAFE_FREE (); |
2291 | ||
652b9560 | 2292 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2293 | return vec; |
2294 | } | |
2295 | ||
2296 | \f | |
2297 | /* API of Font Service Layer. */ | |
2298 | ||
45eb10fb KH |
2299 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2300 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2301 | function with font_sort_order after setting up it. */ | |
2302 | ||
c2f5bfd6 | 2303 | void |
971de7fb | 2304 | font_update_sort_order (int *order) |
c2f5bfd6 | 2305 | { |
35027d0c | 2306 | int i, shift_bits; |
c2f5bfd6 | 2307 | |
943b7eea | 2308 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2309 | { |
2310 | int xlfd_idx = order[i]; | |
2311 | ||
2312 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2313 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2314 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2315 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2316 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2317 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2318 | else | |
2319 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2320 | } | |
2321 | } | |
2322 | ||
51c13510 | 2323 | static int |
971de7fb | 2324 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, Lisp_Object features, Lisp_Object table) |
51c13510 KH |
2325 | { |
2326 | Lisp_Object val; | |
2327 | int negative; | |
2328 | ||
2329 | table = assq_no_quit (script, table); | |
2330 | if (NILP (table)) | |
2331 | return 0; | |
2332 | table = XCDR (table); | |
2333 | if (! NILP (langsys)) | |
2334 | { | |
2335 | table = assq_no_quit (langsys, table); | |
2336 | if (NILP (table)) | |
2337 | return 0; | |
2338 | } | |
2339 | else | |
2340 | { | |
2341 | val = assq_no_quit (Qnil, table); | |
2342 | if (NILP (val)) | |
2343 | table = XCAR (table); | |
2344 | else | |
2345 | table = val; | |
2346 | } | |
2347 | table = XCDR (table); | |
2348 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2349 | { | |
2350 | if (NILP (XCAR (features))) | |
c423ecca KH |
2351 | { |
2352 | negative = 1; | |
2353 | continue; | |
2354 | } | |
51c13510 KH |
2355 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2356 | return 0; | |
2357 | } | |
2358 | return 1; | |
2359 | } | |
2360 | ||
2361 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2362 | ||
2363 | static int | |
3cba9369 | 2364 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2365 | { |
2366 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2367 | ||
2368 | script = XCAR (spec); | |
2369 | spec = XCDR (spec); | |
2370 | if (! NILP (spec)) | |
2371 | { | |
2372 | langsys = XCAR (spec); | |
2373 | spec = XCDR (spec); | |
2374 | if (! NILP (spec)) | |
2375 | { | |
2376 | gsub = XCAR (spec); | |
2377 | spec = XCDR (spec); | |
2378 | if (! NILP (spec)) | |
2379 | gpos = XCAR (spec); | |
2380 | } | |
2381 | } | |
2382 | ||
2383 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2384 | XCAR (otf_capability))) | |
2385 | return 0; | |
2386 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2387 | XCDR (otf_capability))) | |
2388 | return 0; | |
2389 | return 1; | |
2390 | } | |
2391 | ||
45eb10fb | 2392 | |
51c13510 KH |
2393 | |
2394 | /* Check if FONT (font-entity or font-object) matches with the font | |
2395 | specification SPEC. */ | |
45eb10fb | 2396 | |
ef18374f | 2397 | int |
971de7fb | 2398 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2399 | { |
51c13510 KH |
2400 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2401 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2402 | int i; |
2403 | ||
51c13510 KH |
2404 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2405 | if (! NILP (AREF (spec, i)) | |
2406 | && ! NILP (AREF (font, i)) | |
2407 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2408 | return 0; | |
2409 | props = XFONT_SPEC (spec)->props; | |
2410 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2411 | { | |
2412 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2413 | prop[i] = AREF (spec, i); | |
2414 | prop[FONT_SIZE_INDEX] | |
2415 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2416 | props = prop; | |
2417 | } | |
2418 | ||
2419 | if (font_score (font, props) > 0) | |
2420 | return 0; | |
2421 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2422 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2423 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2424 | { |
51c13510 KH |
2425 | Lisp_Object key = XCAR (XCAR (extra)); |
2426 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2427 | ||
2428 | if (EQ (key, QClang)) | |
2429 | { | |
2430 | val2 = assq_no_quit (key, font_extra); | |
2431 | if (NILP (val2)) | |
2432 | return 0; | |
2433 | val2 = XCDR (val2); | |
2434 | if (CONSP (val)) | |
2435 | { | |
2436 | if (! CONSP (val2)) | |
2437 | return 0; | |
2438 | while (CONSP (val)) | |
2439 | if (NILP (Fmemq (val, val2))) | |
2440 | return 0; | |
2441 | } | |
2442 | else | |
2443 | if (CONSP (val2) | |
2444 | ? NILP (Fmemq (val, XCDR (val2))) | |
2445 | : ! EQ (val, val2)) | |
2446 | return 0; | |
2447 | } | |
2448 | else if (EQ (key, QCscript)) | |
2449 | { | |
2450 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2451 | if (CONSP (val2)) |
2452 | { | |
2453 | val2 = XCDR (val2); | |
2454 | if (CONSP (val2)) | |
2455 | { | |
2456 | /* All characters in the list must be supported. */ | |
2457 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2458 | { | |
2459 | if (! NATNUMP (XCAR (val2))) | |
2460 | continue; | |
2461 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2462 | == FONT_INVALID_CODE) | |
2463 | return 0; | |
2464 | } | |
2465 | } | |
2466 | else if (VECTORP (val2)) | |
2467 | { | |
2468 | /* At most one character in the vector must be supported. */ | |
2469 | for (i = 0; i < ASIZE (val2); i++) | |
2470 | { | |
2471 | if (! NATNUMP (AREF (val2, i))) | |
2472 | continue; | |
2473 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2474 | != FONT_INVALID_CODE) | |
f5485732 | 2475 | break; |
5bdd4dd2 KH |
2476 | } |
2477 | if (i == ASIZE (val2)) | |
2478 | return 0; | |
2479 | } | |
2480 | } | |
51c13510 KH |
2481 | } |
2482 | else if (EQ (key, QCotf)) | |
2483 | { | |
2484 | struct font *fontp; | |
2485 | ||
2486 | if (! FONT_OBJECT_P (font)) | |
2487 | return 0; | |
2488 | fontp = XFONT_OBJECT (font); | |
2489 | if (! fontp->driver->otf_capability) | |
2490 | return 0; | |
2491 | val2 = fontp->driver->otf_capability (fontp); | |
2492 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2493 | return 0; | |
2494 | } | |
35027d0c KH |
2495 | } |
2496 | ||
51c13510 | 2497 | return 1; |
ef18374f | 2498 | } |
ca4da08a | 2499 | \f |
819e81df | 2500 | |
ca4da08a KH |
2501 | /* Font cache |
2502 | ||
2503 | Each font backend has the callback function get_cache, and it | |
2504 | returns a cons cell of which cdr part can be freely used for | |
2505 | caching fonts. The cons cell may be shared by multiple frames | |
2506 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2507 | ||
2508 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2509 | ||
2510 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2511 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2512 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2513 | ||
f57e2426 J |
2514 | static void font_prepare_cache (FRAME_PTR, struct font_driver *); |
2515 | static void font_finish_cache (FRAME_PTR, struct font_driver *); | |
2516 | static Lisp_Object font_get_cache (FRAME_PTR, struct font_driver *); | |
2517 | static void font_clear_cache (FRAME_PTR, Lisp_Object, | |
2518 | struct font_driver *); | |
ca4da08a KH |
2519 | |
2520 | static void | |
971de7fb | 2521 | font_prepare_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2522 | { |
2523 | Lisp_Object cache, val; | |
2524 | ||
2525 | cache = driver->get_cache (f); | |
2526 | val = XCDR (cache); | |
2527 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2528 | val = XCDR (val); | |
2529 | if (NILP (val)) | |
2530 | { | |
2531 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2532 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2533 | } | |
2534 | else | |
2535 | { | |
2536 | val = XCDR (XCAR (val)); | |
2537 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2538 | } | |
2539 | } | |
2540 | ||
43c0454d | 2541 | |
ca4da08a | 2542 | static void |
971de7fb | 2543 | font_finish_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2544 | { |
2545 | Lisp_Object cache, val, tmp; | |
2546 | ||
2547 | ||
2548 | cache = driver->get_cache (f); | |
2549 | val = XCDR (cache); | |
2550 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2551 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2552 | font_assert (! NILP (val)); |
ca4da08a | 2553 | tmp = XCDR (XCAR (val)); |
43c0454d | 2554 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2555 | if (XINT (XCAR (tmp)) == 0) |
2556 | { | |
2557 | font_clear_cache (f, XCAR (val), driver); | |
2558 | XSETCDR (cache, XCDR (val)); | |
2559 | } | |
ca4da08a KH |
2560 | } |
2561 | ||
43c0454d | 2562 | |
ca4da08a | 2563 | static Lisp_Object |
971de7fb | 2564 | font_get_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2565 | { |
2566 | Lisp_Object val = driver->get_cache (f); | |
2567 | Lisp_Object type = driver->type; | |
2568 | ||
d0ab1ebe | 2569 | font_assert (CONSP (val)); |
ca4da08a | 2570 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2571 | font_assert (CONSP (val)); |
ca4da08a KH |
2572 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2573 | val = XCDR (XCAR (val)); | |
2574 | return val; | |
2575 | } | |
2576 | ||
43c0454d KH |
2577 | static int num_fonts; |
2578 | ||
ca4da08a | 2579 | static void |
971de7fb | 2580 | font_clear_cache (FRAME_PTR f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2581 | { |
2582 | Lisp_Object tail, elt; | |
6136b72f | 2583 | Lisp_Object tail2, entity; |
51c01100 | 2584 | |
ca4da08a KH |
2585 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2586 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2587 | { | |
2588 | elt = XCAR (tail); | |
6136b72f CY |
2589 | /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */ |
2590 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
ca4da08a | 2591 | { |
6136b72f | 2592 | for (tail2 = XCDR (elt); CONSP (tail2); tail2 = XCDR (tail2)) |
ca4da08a | 2593 | { |
6136b72f | 2594 | entity = XCAR (tail2); |
ca4da08a | 2595 | |
6136b72f CY |
2596 | if (FONT_ENTITY_P (entity) |
2597 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2598 | { |
2599 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2600 | ||
2601 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2602 | { | |
2603 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2604 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2605 | |
5e634ec9 KH |
2606 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2607 | { | |
2608 | font_assert (font && driver == font->driver); | |
2609 | driver->close (f, font); | |
2610 | num_fonts--; | |
2611 | } | |
ca4da08a KH |
2612 | } |
2613 | if (driver->free_entity) | |
2614 | driver->free_entity (entity); | |
2615 | } | |
2616 | } | |
2617 | } | |
2618 | } | |
2619 | XSETCDR (cache, Qnil); | |
2620 | } | |
2621 | \f | |
2622 | ||
c2f5bfd6 KH |
2623 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2624 | ||
7d56b2dd KH |
2625 | /* Check each font-entity in VEC, and return a list of font-entities |
2626 | that satisfy this condition: | |
2627 | (1) matches with SPEC and SIZE if SPEC is not nil, and | |
2628 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2629 | */ | |
2630 | ||
35027d0c | 2631 | Lisp_Object |
971de7fb | 2632 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2633 | { |
d0ab1ebe | 2634 | Lisp_Object entity, val; |
35027d0c | 2635 | enum font_property_index prop; |
72d36834 | 2636 | int i; |
45eb10fb | 2637 | |
72d36834 | 2638 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2639 | { |
72d36834 | 2640 | entity = AREF (vec, i); |
7d56b2dd KH |
2641 | if (! NILP (Vface_ignored_fonts)) |
2642 | { | |
2643 | char name[256]; | |
2644 | Lisp_Object tail, regexp; | |
2645 | ||
2646 | if (font_unparse_xlfd (entity, 0, name, 256) >= 0) | |
2647 | { | |
2648 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2649 | { | |
2650 | regexp = XCAR (tail); | |
2651 | if (STRINGP (regexp) | |
2652 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
2653 | break; | |
2654 | } | |
2655 | if (CONSP (tail)) | |
2656 | continue; | |
2657 | } | |
2658 | } | |
2659 | if (NILP (spec)) | |
2660 | { | |
2661 | val = Fcons (entity, val); | |
2662 | continue; | |
2663 | } | |
35027d0c KH |
2664 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2665 | if (INTEGERP (AREF (spec, prop)) | |
2666 | && ((XINT (AREF (spec, prop)) >> 8) | |
2667 | != (XINT (AREF (entity, prop)) >> 8))) | |
2668 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2669 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2670 | && size |
2671 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2672 | { | |
2673 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2674 | |
35027d0c KH |
2675 | if (diff != 0 |
2676 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2677 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2678 | prop = FONT_SPEC_MAX; | |
2679 | } | |
7181ea6a KH |
2680 | if (prop < FONT_SPEC_MAX |
2681 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2682 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2683 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2684 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2685 | prop = FONT_SPEC_MAX; | |
2686 | if (prop < FONT_SPEC_MAX | |
2687 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2688 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2689 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2690 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2691 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2692 | prop = FONT_SPEC_MAX; | |
35027d0c | 2693 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2694 | val = Fcons (entity, val); |
35027d0c | 2695 | } |
72d36834 | 2696 | return (Fvconcat (1, &val)); |
35027d0c KH |
2697 | } |
2698 | ||
2699 | ||
72d36834 | 2700 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2701 | FRAME. Each elements in the list is a vector of entities from the |
2702 | same font-driver. */ | |
35027d0c KH |
2703 | |
2704 | Lisp_Object | |
971de7fb | 2705 | font_list_entities (Lisp_Object frame, Lisp_Object spec) |
c2f5bfd6 KH |
2706 | { |
2707 | FRAME_PTR f = XFRAME (frame); | |
2708 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2709 | Lisp_Object ftype, val; |
72d36834 | 2710 | Lisp_Object list = Qnil; |
35027d0c KH |
2711 | int size; |
2712 | int need_filtering = 0; | |
c2f5bfd6 KH |
2713 | int i; |
2714 | ||
d0ab1ebe | 2715 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2716 | |
35027d0c KH |
2717 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2718 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2719 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2720 | size = font_pixel_size (f, spec); | |
2721 | else | |
2722 | size = 0; | |
2723 | ||
c2f5bfd6 | 2724 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2725 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2726 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2727 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
35027d0c KH |
2728 | { |
2729 | ASET (scratch_font_spec, i, Qnil); | |
2730 | if (! NILP (AREF (spec, i))) | |
2731 | need_filtering = 1; | |
4007dd1c KH |
2732 | if (i == FONT_DPI_INDEX) |
2733 | /* Skip FONT_SPACING_INDEX */ | |
2734 | i++; | |
35027d0c | 2735 | } |
aa50ca2f | 2736 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2737 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2738 | ||
c2f5bfd6 | 2739 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2740 | if (driver_list->on |
2741 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2742 | { |
ca4da08a | 2743 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2744 | |
e4c93315 | 2745 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2746 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2747 | if (CONSP (val)) | |
2748 | val = XCDR (val); | |
2749 | else | |
c2f5bfd6 | 2750 | { |
4007dd1c | 2751 | Lisp_Object copy; |
35027d0c | 2752 | |
4007dd1c | 2753 | val = driver_list->driver->list (frame, scratch_font_spec); |
72d36834 KH |
2754 | if (NILP (val)) |
2755 | val = null_vector; | |
2756 | else | |
2757 | val = Fvconcat (1, &val); | |
4007dd1c KH |
2758 | copy = Fcopy_font_spec (scratch_font_spec); |
2759 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); | |
2760 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2761 | } |
7d56b2dd KH |
2762 | if (ASIZE (val) > 0 |
2763 | && (need_filtering | |
2764 | || ! NILP (Vface_ignored_fonts))) | |
2765 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2766 | if (ASIZE (val) > 0) |
2767 | list = Fcons (val, list); | |
c2f5bfd6 | 2768 | } |
35027d0c | 2769 | |
72d36834 KH |
2770 | list = Fnreverse (list); |
2771 | FONT_ADD_LOG ("list", spec, list); | |
2772 | return list; | |
c2f5bfd6 KH |
2773 | } |
2774 | ||
45eb10fb | 2775 | |
35027d0c KH |
2776 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2777 | nil, is an array of face's attributes, which specifies preferred | |
2778 | font-related attributes. */ | |
45eb10fb | 2779 | |
e950d6f1 | 2780 | static Lisp_Object |
971de7fb | 2781 | font_matching_entity (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2782 | { |
e950d6f1 KH |
2783 | struct font_driver_list *driver_list = f->font_driver_list; |
2784 | Lisp_Object ftype, size, entity; | |
35027d0c | 2785 | Lisp_Object frame; |
819ab95f | 2786 | Lisp_Object work = Fcopy_font_spec (spec); |
e950d6f1 | 2787 | |
35027d0c | 2788 | XSETFRAME (frame, f); |
e950d6f1 KH |
2789 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2790 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2791 | |
8d0e382e AR |
2792 | if (FLOATP (size)) |
2793 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2794 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2795 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2796 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2797 | ||
e950d6f1 KH |
2798 | entity = Qnil; |
2799 | for (; driver_list; driver_list = driver_list->next) | |
2800 | if (driver_list->on | |
2801 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2802 | { | |
ca4da08a | 2803 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2804 | Lisp_Object copy; |
e950d6f1 | 2805 | |
819ab95f KH |
2806 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2807 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2808 | if (CONSP (entity)) |
e950d6f1 KH |
2809 | entity = XCDR (entity); |
2810 | else | |
2811 | { | |
819ab95f KH |
2812 | entity = driver_list->driver->match (frame, work); |
2813 | copy = Fcopy_font_spec (work); | |
7cee5d63 KH |
2814 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2815 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2816 | } |
2817 | if (! NILP (entity)) | |
2818 | break; | |
2819 | } | |
652b9560 | 2820 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2821 | return entity; |
2822 | } | |
2823 | ||
45eb10fb KH |
2824 | |
2825 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2826 | opened font object. */ | |
2827 | ||
c2f5bfd6 | 2828 | static Lisp_Object |
971de7fb | 2829 | font_open_entity (FRAME_PTR f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2830 | { |
2831 | struct font_driver_list *driver_list; | |
43c0454d | 2832 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2833 | struct font *font; |
d26424c5 | 2834 | int min_width, height; |
a35dd56b | 2835 | int scaled_pixel_size; |
c2f5bfd6 | 2836 | |
d0ab1ebe | 2837 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2838 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2839 | if (XINT (size) != 0) |
a35dd56b | 2840 | scaled_pixel_size = pixel_size = XINT (size); |
55e41770 | 2841 | else if (CONSP (Vface_font_rescale_alist)) |
a35dd56b | 2842 | scaled_pixel_size = pixel_size * font_rescale_ratio (entity); |
c2f5bfd6 | 2843 | |
35027d0c KH |
2844 | val = AREF (entity, FONT_TYPE_INDEX); |
2845 | for (driver_list = f->font_driver_list; | |
2846 | driver_list && ! EQ (driver_list->driver->type, val); | |
2847 | driver_list = driver_list->next); | |
2848 | if (! driver_list) | |
2849 | return Qnil; | |
c2f5bfd6 | 2850 | |
d0cf45b7 JD |
2851 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2852 | objlist = XCDR (objlist)) | |
2853 | { | |
2854 | Lisp_Object fn = XCAR (objlist); | |
2855 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2856 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2857 | { | |
2858 | if (driver_list->driver->cached_font_ok == NULL | |
2859 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2860 | return fn; | |
2861 | } | |
2862 | } | |
2863 | ||
a35dd56b | 2864 | font_object = driver_list->driver->open (f, entity, scaled_pixel_size); |
66f5ced0 YM |
2865 | if (!NILP (font_object)) |
2866 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2867 | FONT_ADD_LOG ("open", entity, font_object); |
43c0454d | 2868 | if (NILP (font_object)) |
35027d0c KH |
2869 | return Qnil; |
2870 | ASET (entity, FONT_OBJLIST_INDEX, | |
2871 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2872 | num_fonts++; |
2873 | ||
2874 | font = XFONT_OBJECT (font_object); | |
2875 | min_width = (font->min_width ? font->min_width | |
2876 | : font->average_width ? font->average_width | |
2877 | : font->space_width ? font->space_width | |
2878 | : 1); | |
d26424c5 | 2879 | height = (font->height ? font->height : 1); |
819e81df | 2880 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2881 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2882 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2883 | { |
35027d0c | 2884 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2885 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
35027d0c KH |
2886 | fonts_changed_p = 1; |
2887 | } | |
2888 | else | |
2889 | { | |
2890 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2891 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
d26424c5 KH |
2892 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
2893 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, fonts_changed_p = 1; | |
43c0454d | 2894 | } |
819e81df | 2895 | #endif |
43c0454d KH |
2896 | |
2897 | return font_object; | |
c2f5bfd6 KH |
2898 | } |
2899 | ||
45eb10fb KH |
2900 | |
2901 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2902 | ||
c2f5bfd6 | 2903 | void |
971de7fb | 2904 | font_close_object (FRAME_PTR f, Lisp_Object font_object) |
c2f5bfd6 | 2905 | { |
35027d0c | 2906 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2907 | |
5e634ec9 KH |
2908 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2909 | /* Already closed. */ | |
2910 | return; | |
652b9560 | 2911 | FONT_ADD_LOG ("close", font_object, Qnil); |
5e634ec9 | 2912 | font->driver->close (f, font); |
819e81df | 2913 | #ifdef HAVE_WINDOW_SYSTEM |
5e634ec9 KH |
2914 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2915 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2916 | #endif |
5e634ec9 | 2917 | num_fonts--; |
c2f5bfd6 KH |
2918 | } |
2919 | ||
45eb10fb | 2920 | |
1701724c KH |
2921 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2922 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2923 | |
c2f5bfd6 | 2924 | int |
971de7fb | 2925 | font_has_char (FRAME_PTR f, Lisp_Object font, int c) |
c2f5bfd6 | 2926 | { |
1b834a8d | 2927 | struct font *fontp; |
c2f5bfd6 | 2928 | |
1b834a8d KH |
2929 | if (FONT_ENTITY_P (font)) |
2930 | { | |
2931 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2932 | struct font_driver_list *driver_list; | |
2933 | ||
2934 | for (driver_list = f->font_driver_list; | |
2935 | driver_list && ! EQ (driver_list->driver->type, type); | |
2936 | driver_list = driver_list->next); | |
2937 | if (! driver_list) | |
2938 | return 0; | |
2939 | if (! driver_list->driver->has_char) | |
2940 | return -1; | |
2941 | return driver_list->driver->has_char (font, c); | |
2942 | } | |
2943 | ||
d0ab1ebe | 2944 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 2945 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2946 | if (fontp->driver->has_char) |
2947 | { | |
35027d0c | 2948 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2949 | |
2950 | if (result >= 0) | |
2951 | return result; | |
2952 | } | |
2953 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2954 | } |
2955 | ||
45eb10fb KH |
2956 | |
2957 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2958 | ||
2f7c71a1 | 2959 | static unsigned |
971de7fb | 2960 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 2961 | { |
35027d0c | 2962 | struct font *font; |
c2f5bfd6 | 2963 | |
d0ab1ebe | 2964 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2965 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2966 | return font->driver->encode_char (font, c); |
2967 | } | |
2968 | ||
45eb10fb KH |
2969 | |
2970 | /* Return the name of FONT_OBJECT. */ | |
2971 | ||
ef18374f | 2972 | Lisp_Object |
971de7fb | 2973 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 2974 | { |
d0ab1ebe | 2975 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2976 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2977 | } |
2978 | ||
45eb10fb KH |
2979 | |
2980 | /* Return the specification of FONT_OBJECT. */ | |
2981 | ||
ef18374f | 2982 | Lisp_Object |
971de7fb | 2983 | font_get_spec (Lisp_Object font_object) |
ef18374f | 2984 | { |
35027d0c | 2985 | Lisp_Object spec = font_make_spec (); |
ef18374f KH |
2986 | int i; |
2987 | ||
2988 | for (i = 0; i < FONT_SIZE_INDEX; i++) | |
35027d0c KH |
2989 | ASET (spec, i, AREF (font_object, i)); |
2990 | ASET (spec, FONT_SIZE_INDEX, | |
2991 | make_number (XFONT_OBJECT (font_object)->pixel_size)); | |
ef18374f | 2992 | return spec; |
c2f5bfd6 KH |
2993 | } |
2994 | ||
05802645 CY |
2995 | |
2996 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME | |
2997 | could not be parsed by font_parse_name, return Qnil. */ | |
2998 | ||
35027d0c | 2999 | Lisp_Object |
971de7fb | 3000 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 3001 | { |
05802645 | 3002 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 3003 | |
05802645 CY |
3004 | CHECK_STRING (font_name); |
3005 | if (font_parse_name ((char *) SDATA (font_name), spec) == -1) | |
3006 | return Qnil; | |
3007 | font_put_extra (spec, QCname, font_name); | |
42707278 | 3008 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 3009 | return spec; |
35027d0c KH |
3010 | } |
3011 | ||
45eb10fb | 3012 | |
35027d0c | 3013 | void |
971de7fb | 3014 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
3015 | { |
3016 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 3017 | |
35027d0c KH |
3018 | if (! FONTP (font)) |
3019 | return; | |
42707278 | 3020 | |
483670b5 KH |
3021 | if (! NILP (Ffont_get (font, QCname))) |
3022 | { | |
3023 | font = Fcopy_font_spec (font); | |
3024 | font_put_extra (font, QCname, Qnil); | |
3025 | } | |
3026 | ||
35027d0c | 3027 | if (NILP (AREF (font, prop)) |
e234927a CY |
3028 | && prop != FONT_FAMILY_INDEX |
3029 | && prop != FONT_FOUNDRY_INDEX | |
3030 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 3031 | && prop != FONT_SIZE_INDEX) |
35027d0c | 3032 | return; |
483670b5 KH |
3033 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
3034 | font = Fcopy_font_spec (font); | |
35027d0c | 3035 | ASET (font, prop, Qnil); |
4007dd1c | 3036 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 3037 | { |
4007dd1c | 3038 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
3039 | { |
3040 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
3041 | /* If we are setting the font family, we must also clear | |
3042 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
3043 | support for some widths. */ | |
3044 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
3045 | } | |
35027d0c | 3046 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3047 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3048 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3049 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3050 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3051 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3052 | } | |
3053 | else if (prop == FONT_SIZE_INDEX) | |
3054 | { | |
3055 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3056 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3057 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3058 | } | |
e234927a CY |
3059 | else if (prop == FONT_WIDTH_INDEX) |
3060 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3061 | attrs[LFACE_FONT_INDEX] = font; |
3062 | } | |
3063 | ||
72d36834 KH |
3064 | /* Selecte a font from ENTITIES (list of font-entity vectors) that |
3065 | supports C and matches best with ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
3066 | |
3067 | static Lisp_Object | |
971de7fb | 3068 | font_select_entity (Lisp_Object frame, Lisp_Object entities, Lisp_Object *attrs, int pixel_size, int c) |
988a7ddb KH |
3069 | { |
3070 | Lisp_Object font_entity; | |
3071 | Lisp_Object prefer; | |
988a7ddb KH |
3072 | int result, i; |
3073 | FRAME_PTR f = XFRAME (frame); | |
3074 | ||
72d36834 KH |
3075 | if (NILP (XCDR (entities)) |
3076 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 3077 | { |
72d36834 | 3078 | font_entity = AREF (XCAR (entities), 0); |
988a7ddb KH |
3079 | if (c < 0 |
3080 | || (result = font_has_char (f, font_entity, c)) > 0) | |
3081 | return font_entity; | |
3082 | return Qnil; | |
3083 | } | |
3084 | ||
3085 | /* Sort fonts by properties specified in ATTRS. */ | |
3086 | prefer = scratch_font_prefer; | |
3087 | ||
3088 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3089 | ASET (prefer, i, Qnil); | |
3090 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3091 | { | |
3092 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3093 | ||
3094 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3095 | ASET (prefer, i, AREF (face_font, i)); | |
3096 | } | |
3097 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3098 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3099 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3100 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3101 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3102 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3103 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3104 | |
2645d15b | 3105 | return font_sort_entities (entities, prefer, frame, c); |
988a7ddb KH |
3106 | } |
3107 | ||
35027d0c KH |
3108 | /* Return a font-entity satisfying SPEC and best matching with face's |
3109 | font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3110 | character that the entity must support. */ |
c2f5bfd6 KH |
3111 | |
3112 | Lisp_Object | |
971de7fb | 3113 | font_find_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3114 | { |
4007dd1c | 3115 | Lisp_Object work; |
72d36834 | 3116 | Lisp_Object frame, entities, val; |
22459668 | 3117 | Lisp_Object size, foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3118 | int pixel_size; |
72d36834 | 3119 | int i, j, k, l; |
d0a47776 KH |
3120 | |
3121 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3122 | if (NILP (registry[0])) | |
3123 | { | |
edfda783 | 3124 | registry[0] = DEFAULT_ENCODING; |
d0a47776 KH |
3125 | registry[1] = Qascii_0; |
3126 | registry[2] = null_vector; | |
3127 | } | |
3128 | else | |
3129 | registry[1] = null_vector; | |
c2f5bfd6 | 3130 | |
4007dd1c | 3131 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3132 | { |
35027d0c | 3133 | struct charset *encoding, *repertory; |
1701724c | 3134 | |
4007dd1c KH |
3135 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3136 | &encoding, &repertory) < 0) | |
35027d0c | 3137 | return Qnil; |
72d36834 KH |
3138 | if (repertory |
3139 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3140 | return Qnil; | |
35027d0c KH |
3141 | else if (c > encoding->max_char) |
3142 | return Qnil; | |
c2f5bfd6 KH |
3143 | } |
3144 | ||
4007dd1c | 3145 | work = Fcopy_font_spec (spec); |
227f12fa | 3146 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
35027d0c KH |
3147 | XSETFRAME (frame, f); |
3148 | size = AREF (spec, FONT_SIZE_INDEX); | |
1d1e1245 KH |
3149 | pixel_size = font_pixel_size (f, spec); |
3150 | if (pixel_size == 0) | |
3151 | { | |
3152 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3153 | ||
3154 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
3155 | } | |
4007dd1c KH |
3156 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3157 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3158 | if (! NILP (foundry[0])) | |
3159 | foundry[1] = null_vector; | |
3160 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
3161 | { | |
071132a9 KH |
3162 | val = attrs[LFACE_FOUNDRY_INDEX]; |
3163 | foundry[0] = font_intern_prop ((char *) SDATA (val), SBYTES (val), 1); | |
4007dd1c KH |
3164 | foundry[1] = Qnil; |
3165 | foundry[2] = null_vector; | |
3166 | } | |
3167 | else | |
3168 | foundry[0] = Qnil, foundry[1] = null_vector; | |
3169 | ||
22459668 KH |
3170 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3171 | if (! NILP (adstyle[0])) | |
3172 | adstyle[1] = null_vector; | |
3173 | else if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3174 | { | |
3175 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3176 | ||
3177 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3178 | { | |
3179 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3180 | adstyle[1] = Qnil; | |
3181 | adstyle[2] = null_vector; | |
3182 | } | |
3183 | else | |
3184 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3185 | } | |
3186 | else | |
3187 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3188 | ||
3189 | ||
4007dd1c KH |
3190 | val = AREF (work, FONT_FAMILY_INDEX); |
3191 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3192 | { |
3193 | val = attrs[LFACE_FAMILY_INDEX]; | |
3194 | val = font_intern_prop ((char *) SDATA (val), SBYTES (val), 1); | |
3195 | } | |
4007dd1c KH |
3196 | if (NILP (val)) |
3197 | { | |
3198 | family = alloca ((sizeof family[0]) * 2); | |
3199 | family[0] = Qnil; | |
3200 | family[1] = null_vector; /* terminator. */ | |
3201 | } | |
3202 | else | |
3203 | { | |
3204 | Lisp_Object alters | |
819ab95f | 3205 | = Fassoc_string (val, Vface_alternative_font_family_alist, |
7107c29e | 3206 | /* Font family names are case-sensitive under NS. */ |
819ab95f KH |
3207 | #ifndef HAVE_NS |
3208 | Qt | |
3209 | #else | |
3210 | Qnil | |
3211 | #endif | |
3212 | ); | |
4007dd1c KH |
3213 | |
3214 | if (! NILP (alters)) | |
3215 | { | |
3216 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
3217 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
3218 | family[i] = XCAR (alters); | |
3219 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3220 | family[i++] = Qnil; | |
3221 | family[i] = null_vector; | |
3222 | } | |
3223 | else | |
3224 | { | |
3225 | family = alloca ((sizeof family[0]) * 3); | |
3226 | i = 0; | |
3227 | family[i++] = val; | |
3228 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3229 | family[i++] = Qnil; | |
3230 | family[i] = null_vector; | |
3231 | } | |
3232 | } | |
3233 | ||
d0a47776 | 3234 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3235 | { |
d0a47776 KH |
3236 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3237 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3238 | { |
d0a47776 KH |
3239 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3240 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3241 | { | |
904a2e0e | 3242 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3243 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3244 | { | |
3245 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
3246 | entities = font_list_entities (frame, work); | |
72d36834 | 3247 | if (! NILP (entities)) |
988a7ddb KH |
3248 | { |
3249 | val = font_select_entity (frame, entities, | |
3250 | attrs, pixel_size, c); | |
3251 | if (! NILP (val)) | |
637fa988 | 3252 | return val; |
988a7ddb | 3253 | } |
22459668 | 3254 | } |
d0a47776 | 3255 | } |
4007dd1c | 3256 | } |
4007dd1c | 3257 | } |
d0a47776 | 3258 | return Qnil; |
1701724c | 3259 | } |
45eb10fb KH |
3260 | |
3261 | ||
c2f5bfd6 | 3262 | Lisp_Object |
971de7fb | 3263 | font_open_for_lface (FRAME_PTR f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3264 | { |
9331887d | 3265 | int size; |
c2f5bfd6 | 3266 | |
4007dd1c KH |
3267 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3268 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3269 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3270 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3271 | size = font_pixel_size (f, spec); |
733fd013 KH |
3272 | else |
3273 | { | |
50b0cd29 CY |
3274 | double pt; |
3275 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3276 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3277 | else | |
3278 | { | |
3279 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3280 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3281 | if (INTEGERP (height)) | |
3282 | pt = XINT (height); | |
3283 | else | |
3284 | abort(); /* We should never end up here. */ | |
3285 | } | |
733fd013 KH |
3286 | |
3287 | pt /= 10; | |
3288 | size = POINT_TO_PIXEL (pt, f->resy); | |
ed96cde8 AR |
3289 | #ifdef HAVE_NS |
3290 | if (size == 0) | |
3291 | { | |
3292 | Lisp_Object ffsize = get_frame_param(f, Qfontsize); | |
3293 | size = NUMBERP (ffsize) ? POINT_TO_PIXEL (XINT (ffsize), f->resy) : 0; | |
3294 | } | |
3295 | #endif | |
733fd013 | 3296 | } |
c2f5bfd6 KH |
3297 | return font_open_entity (f, entity, size); |
3298 | } | |
3299 | ||
45eb10fb | 3300 | |
35027d0c KH |
3301 | /* Find a font satisfying SPEC and best matching with face's |
3302 | attributes in ATTRS on FRAME, and return the opened | |
3303 | font-object. */ | |
45eb10fb | 3304 | |
35027d0c | 3305 | Lisp_Object |
971de7fb | 3306 | font_load_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3307 | { |
637fa988 | 3308 | Lisp_Object entity, name; |
ef18374f | 3309 | |
908567ef | 3310 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3311 | if (NILP (entity)) |
ef18374f | 3312 | { |
35027d0c KH |
3313 | /* No font is listed for SPEC, but each font-backend may have |
3314 | the different criteria about "font matching". So, try | |
3315 | it. */ | |
3316 | entity = font_matching_entity (f, attrs, spec); | |
3317 | if (NILP (entity)) | |
3318 | return Qnil; | |
c2f5bfd6 | 3319 | } |
537b04b9 | 3320 | /* Don't lose the original name that was put in initially. We need |
637fa988 JD |
3321 | it to re-apply the font when font parameters (like hinting or dpi) have |
3322 | changed. */ | |
3323 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3324 | if (!NILP (entity)) |
3325 | { | |
42707278 JD |
3326 | name = Ffont_get (spec, QCuser_spec); |
3327 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3328 | } |
637fa988 | 3329 | return entity; |
c2f5bfd6 KH |
3330 | } |
3331 | ||
45eb10fb KH |
3332 | |
3333 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3334 | ||
c2f5bfd6 | 3335 | void |
971de7fb | 3336 | font_prepare_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3337 | { |
35027d0c KH |
3338 | if (face->font->driver->prepare_face) |
3339 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3340 | } |
3341 | ||
45eb10fb KH |
3342 | |
3343 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3344 | ||
c2f5bfd6 | 3345 | void |
971de7fb | 3346 | font_done_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3347 | { |
35027d0c KH |
3348 | if (face->font->driver->done_face) |
3349 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3350 | face->extra = NULL; |
3351 | } | |
3352 | ||
45eb10fb | 3353 | |
c50b7e98 KH |
3354 | /* Open a font matching with font-spec SPEC on frame F. If no proper |
3355 | font is found, return Qnil. */ | |
45eb10fb | 3356 | |
c2f5bfd6 | 3357 | Lisp_Object |
971de7fb | 3358 | font_open_by_spec (FRAME_PTR f, Lisp_Object spec) |
c2f5bfd6 | 3359 | { |
c50b7e98 | 3360 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3361 | |
4007dd1c KH |
3362 | /* We set up the default font-related attributes of a face to prefer |
3363 | a moderate font. */ | |
3364 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3365 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3366 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3367 | #ifndef HAVE_NS |
4007dd1c | 3368 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3369 | #else |
3370 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3371 | #endif | |
4007dd1c KH |
3372 | attrs[LFACE_FONT_INDEX] = Qnil; |
3373 | ||
3374 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3375 | } |
3376 | ||
3377 | ||
c50b7e98 KH |
3378 | /* Open a font matching with NAME on frame F. If no proper font is |
3379 | found, return Qnil. */ | |
3380 | ||
3381 | Lisp_Object | |
42ca4633 | 3382 | font_open_by_name (FRAME_PTR f, const char *name) |
c50b7e98 KH |
3383 | { |
3384 | Lisp_Object args[2]; | |
581e51e8 | 3385 | Lisp_Object spec, ret; |
c50b7e98 KH |
3386 | |
3387 | args[0] = QCname; | |
3388 | args[1] = make_unibyte_string (name, strlen (name)); | |
3389 | spec = Ffont_spec (2, args); | |
581e51e8 | 3390 | ret = font_open_by_spec (f, spec); |
537b04b9 | 3391 | /* Do not lose name originally put in. */ |
8096a0ff | 3392 | if (!NILP (ret)) |
42707278 | 3393 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3394 | |
3395 | return ret; | |
c50b7e98 KH |
3396 | } |
3397 | ||
3398 | ||
c2f5bfd6 KH |
3399 | /* Register font-driver DRIVER. This function is used in two ways. |
3400 | ||
417a1b10 KH |
3401 | The first is with frame F non-NULL. In this case, make DRIVER |
3402 | available (but not yet activated) on F. All frame creaters | |
3403 | (e.g. Fx_create_frame) must call this function at least once with | |
3404 | an available font-driver. | |
c2f5bfd6 KH |
3405 | |
3406 | The second is with frame F NULL. In this case, DRIVER is globally | |
3407 | registered in the variable `font_driver_list'. All font-driver | |
3408 | implementations must call this function in its syms_of_XXXX | |
3409 | (e.g. syms_of_xfont). */ | |
3410 | ||
3411 | void | |
971de7fb | 3412 | register_font_driver (struct font_driver *driver, FRAME_PTR f) |
c2f5bfd6 KH |
3413 | { |
3414 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3415 | struct font_driver_list *prev, *list; | |
3416 | ||
3417 | if (f && ! driver->draw) | |
43a1d19b | 3418 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3419 | SDATA (SYMBOL_NAME (driver->type))); |
3420 | ||
3421 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3422 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3423 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3424 | ||
c115043b | 3425 | list = xmalloc (sizeof (struct font_driver_list)); |
417a1b10 | 3426 | list->on = 0; |
c2f5bfd6 KH |
3427 | list->driver = driver; |
3428 | list->next = NULL; | |
3429 | if (prev) | |
3430 | prev->next = list; | |
3431 | else if (f) | |
3432 | f->font_driver_list = list; | |
3433 | else | |
3434 | font_driver_list = list; | |
72606e45 KH |
3435 | if (! f) |
3436 | num_font_drivers++; | |
c2f5bfd6 KH |
3437 | } |
3438 | ||
2ed98482 | 3439 | void |
971de7fb | 3440 | free_font_driver_list (FRAME_PTR f) |
2ed98482 CY |
3441 | { |
3442 | struct font_driver_list *list, *next; | |
3443 | ||
3444 | for (list = f->font_driver_list; list; list = next) | |
3445 | { | |
3446 | next = list->next; | |
3447 | xfree (list); | |
3448 | } | |
3449 | f->font_driver_list = NULL; | |
3450 | } | |
3451 | ||
45eb10fb | 3452 | |
f697fff0 | 3453 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3454 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3455 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3456 | |
ca4da08a KH |
3457 | A caller must free all realized faces if any in advance. The |
3458 | return value is a list of font backends actually made used on | |
3459 | F. */ | |
e950d6f1 KH |
3460 | |
3461 | Lisp_Object | |
971de7fb | 3462 | font_update_drivers (FRAME_PTR f, Lisp_Object new_drivers) |
417a1b10 KH |
3463 | { |
3464 | Lisp_Object active_drivers = Qnil; | |
4007dd1c | 3465 | struct font_driver *driver; |
417a1b10 KH |
3466 | struct font_driver_list *list; |
3467 | ||
4007dd1c KH |
3468 | /* At first, turn off non-requested drivers, and turn on requested |
3469 | drivers. */ | |
f697fff0 | 3470 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c KH |
3471 | { |
3472 | driver = list->driver; | |
3473 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) | |
3474 | != list->on) | |
3475 | { | |
3476 | if (list->on) | |
3477 | { | |
3478 | if (driver->end_for_frame) | |
3479 | driver->end_for_frame (f); | |
3480 | font_finish_cache (f, driver); | |
3481 | list->on = 0; | |
3482 | } | |
3483 | else | |
3484 | { | |
3485 | if (! driver->start_for_frame | |
3486 | || driver->start_for_frame (f) == 0) | |
3487 | { | |
3488 | font_prepare_cache (f, driver); | |
3489 | list->on = 1; | |
3490 | } | |
3491 | } | |
3492 | } | |
3493 | } | |
3494 | ||
3495 | if (NILP (new_drivers)) | |
3496 | return Qnil; | |
3497 | ||
3498 | if (! EQ (new_drivers, Qt)) | |
3499 | { | |
3500 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3501 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3502 | Lisp_Object tail; |
3503 | int i; | |
3504 | ||
3505 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3506 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3507 | { | |
3508 | for (list = f->font_driver_list; list; list = list->next) | |
3509 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3510 | break; | |
3511 | if (list) | |
3512 | list_table[i++] = list; | |
3513 | } | |
3514 | for (list = f->font_driver_list; list; list = list->next) | |
3515 | if (! list->on) | |
6136b72f | 3516 | list_table[i++] = list; |
4007dd1c KH |
3517 | list_table[i] = NULL; |
3518 | ||
3306c6dc | 3519 | next = &f->font_driver_list; |
4007dd1c KH |
3520 | for (i = 0; list_table[i]; i++) |
3521 | { | |
3306c6dc AS |
3522 | *next = list_table[i]; |
3523 | next = &(*next)->next; | |
4007dd1c | 3524 | } |
3306c6dc | 3525 | *next = NULL; |
ba98e3a0 SM |
3526 | |
3527 | if (! f->font_driver_list->on) | |
3528 | { /* None of the drivers is enabled: enable them all. | |
3529 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3530 | and then use it under w32 or ns. */ | |
3531 | for (list = f->font_driver_list; list; list = list->next) | |
3532 | { | |
3533 | struct font_driver *driver = list->driver; | |
3534 | eassert (! list->on); | |
3535 | if (! driver->start_for_frame | |
3536 | || driver->start_for_frame (f) == 0) | |
3537 | { | |
3538 | font_prepare_cache (f, driver); | |
3539 | list->on = 1; | |
3540 | } | |
3541 | } | |
3542 | } | |
4007dd1c | 3543 | } |
417a1b10 | 3544 | |
4007dd1c KH |
3545 | for (list = f->font_driver_list; list; list = list->next) |
3546 | if (list->on) | |
3547 | active_drivers = nconc2 (active_drivers, | |
3548 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3549 | return active_drivers; |
417a1b10 KH |
3550 | } |
3551 | ||
f697fff0 | 3552 | int |
971de7fb | 3553 | font_put_frame_data (FRAME_PTR f, struct font_driver *driver, void *data) |
f697fff0 KH |
3554 | { |
3555 | struct font_data_list *list, *prev; | |
3556 | ||
3557 | for (prev = NULL, list = f->font_data_list; list; | |
3558 | prev = list, list = list->next) | |
3559 | if (list->driver == driver) | |
3560 | break; | |
3561 | if (! data) | |
3562 | { | |
3563 | if (list) | |
3564 | { | |
3565 | if (prev) | |
3566 | prev->next = list->next; | |
3567 | else | |
3568 | f->font_data_list = list->next; | |
973e7849 | 3569 | xfree (list); |
f697fff0 KH |
3570 | } |
3571 | return 0; | |
3572 | } | |
3573 | ||
3574 | if (! list) | |
3575 | { | |
c115043b | 3576 | list = xmalloc (sizeof (struct font_data_list)); |
f697fff0 KH |
3577 | list->driver = driver; |
3578 | list->next = f->font_data_list; | |
3579 | f->font_data_list = list; | |
3580 | } | |
3581 | list->data = data; | |
3582 | return 0; | |
3583 | } | |
3584 | ||
3585 | ||
3586 | void * | |
971de7fb | 3587 | font_get_frame_data (FRAME_PTR f, struct font_driver *driver) |
f697fff0 KH |
3588 | { |
3589 | struct font_data_list *list; | |
3590 | ||
3591 | for (list = f->font_data_list; list; list = list->next) | |
3592 | if (list->driver == driver) | |
3593 | break; | |
3594 | if (! list) | |
3595 | return NULL; | |
3596 | return list->data; | |
3597 | } | |
3598 | ||
417a1b10 | 3599 | |
9fa82824 DP |
3600 | /* Sets attributes on a font. Any properties that appear in ALIST and |
3601 | BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font. | |
3602 | BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated | |
3603 | arrays of strings. This function is intended for use by the font | |
3604 | drivers to implement their specific font_filter_properties. */ | |
3605 | void | |
220d91b8 JB |
3606 | font_filter_properties (Lisp_Object font, |
3607 | Lisp_Object alist, | |
3106121c YM |
3608 | const char *const boolean_properties[], |
3609 | const char *const non_boolean_properties[]) | |
9fa82824 DP |
3610 | { |
3611 | Lisp_Object it; | |
3612 | int i; | |
3613 | ||
3614 | /* Set boolean values to Qt or Qnil */ | |
3615 | for (i = 0; boolean_properties[i] != NULL; ++i) | |
3616 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3617 | { | |
3618 | Lisp_Object key = XCAR (XCAR (it)); | |
3619 | Lisp_Object val = XCDR (XCAR (it)); | |
3620 | char *keystr = SDATA (SYMBOL_NAME (key)); | |
3621 | ||
3622 | if (strcmp (boolean_properties[i], keystr) == 0) | |
3623 | { | |
3624 | const char *str = INTEGERP (val) ? (XINT (val) ? "true" : "false") | |
3625 | : SYMBOLP (val) ? (const char *) SDATA (SYMBOL_NAME (val)) | |
3626 | : "true"; | |
3627 | ||
3628 | if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0 | |
3629 | || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0 | |
3630 | || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0 | |
3631 | || strcmp ("Off", str) == 0) | |
3632 | val = Qnil; | |
3633 | else | |
3634 | val = Qt; | |
3635 | ||
3636 | Ffont_put (font, key, val); | |
3637 | } | |
3638 | } | |
3639 | ||
3640 | for (i = 0; non_boolean_properties[i] != NULL; ++i) | |
3641 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3642 | { | |
3643 | Lisp_Object key = XCAR (XCAR (it)); | |
3644 | Lisp_Object val = XCDR (XCAR (it)); | |
3645 | char *keystr = SDATA (SYMBOL_NAME (key)); | |
3646 | if (strcmp (non_boolean_properties[i], keystr) == 0) | |
3647 | Ffont_put (font, key, val); | |
3648 | } | |
3649 | } | |
3650 | ||
3651 | ||
45eb10fb | 3652 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3653 | POS in window W. If STRING is non-nil, it is a string containing C |
3654 | at index POS. If C is negative, get C from the current buffer or | |
3655 | STRING. */ | |
45eb10fb | 3656 | |
2f7c71a1 AS |
3657 | static Lisp_Object |
3658 | font_at (int c, EMACS_INT pos, struct face *face, struct window *w, | |
3659 | Lisp_Object string) | |
10d16101 KH |
3660 | { |
3661 | FRAME_PTR f; | |
e3ee0340 | 3662 | int multibyte; |
35027d0c | 3663 | Lisp_Object font_object; |
e3ee0340 | 3664 | |
e500c47d KH |
3665 | multibyte = (NILP (string) |
3666 | ? ! NILP (current_buffer->enable_multibyte_characters) | |
3667 | : STRING_MULTIBYTE (string)); | |
e3ee0340 KH |
3668 | if (c < 0) |
3669 | { | |
3670 | if (NILP (string)) | |
3671 | { | |
e3ee0340 KH |
3672 | if (multibyte) |
3673 | { | |
3674 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3675 | ||
3676 | c = FETCH_CHAR (pos_byte); | |
3677 | } | |
3678 | else | |
3679 | c = FETCH_BYTE (pos); | |
3680 | } | |
3681 | else | |
3682 | { | |
3683 | unsigned char *str; | |
3684 | ||
3685 | multibyte = STRING_MULTIBYTE (string); | |
3686 | if (multibyte) | |
3687 | { | |
3688 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3689 | ||
3690 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3691 | c = STRING_CHAR (str); |
e3ee0340 KH |
3692 | } |
3693 | else | |
3694 | c = SDATA (string)[pos]; | |
3695 | } | |
3696 | } | |
10d16101 KH |
3697 | |
3698 | f = XFRAME (w->frame); | |
1385a806 KH |
3699 | if (! FRAME_WINDOW_P (f)) |
3700 | return Qnil; | |
10d16101 KH |
3701 | if (! face) |
3702 | { | |
e3ee0340 | 3703 | int face_id; |
0f8b27ea | 3704 | EMACS_INT endptr; |
e3ee0340 KH |
3705 | |
3706 | if (STRINGP (string)) | |
3707 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3708 | DEFAULT_FACE_ID, 0); |
3709 | else | |
e3ee0340 | 3710 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
6970f632 | 3711 | pos + 100, 0, -1); |
10d16101 KH |
3712 | face = FACE_FROM_ID (f, face_id); |
3713 | } | |
e3ee0340 KH |
3714 | if (multibyte) |
3715 | { | |
3716 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3717 | face = FACE_FROM_ID (f, face_id); | |
3718 | } | |
35027d0c | 3719 | if (! face->font) |
10d16101 | 3720 | return Qnil; |
35027d0c | 3721 | |
35027d0c KH |
3722 | XSETFONT (font_object, face->font); |
3723 | return font_object; | |
3724 | } | |
3725 | ||
3726 | ||
071132a9 KH |
3727 | #ifdef HAVE_WINDOW_SYSTEM |
3728 | ||
3729 | /* Check how many characters after POS (at most to *LIMIT) can be | |
3730 | displayed by the same font on the window W. FACE, if non-NULL, is | |
3731 | the face selected for the character at POS. If STRING is not nil, | |
3732 | it is the string to check instead of the current buffer. In that | |
3733 | case, FACE must be not NULL. | |
027a33c0 | 3734 | |
071132a9 KH |
3735 | The return value is the font-object for the character at POS. |
3736 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3737 | |
071132a9 KH |
3738 | It is assured that the current buffer (or STRING) is multibyte. */ |
3739 | ||
3740 | Lisp_Object | |
971de7fb | 3741 | font_range (EMACS_INT pos, EMACS_INT *limit, struct window *w, struct face *face, Lisp_Object string) |
35027d0c | 3742 | { |
0e5d7800 | 3743 | EMACS_INT pos_byte, ignore; |
35027d0c | 3744 | int c; |
071132a9 | 3745 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3746 | |
3747 | if (NILP (string)) | |
3748 | { | |
35027d0c | 3749 | pos_byte = CHAR_TO_BYTE (pos); |
071132a9 KH |
3750 | if (! face) |
3751 | { | |
3752 | int face_id; | |
3753 | ||
6970f632 CY |
3754 | face_id = face_at_buffer_position (w, pos, 0, 0, &ignore, |
3755 | *limit, 0, -1); | |
071132a9 KH |
3756 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
3757 | } | |
35027d0c KH |
3758 | } |
3759 | else | |
3760 | { | |
071132a9 | 3761 | font_assert (face); |
35027d0c KH |
3762 | pos_byte = string_char_to_byte (string, pos); |
3763 | } | |
3764 | ||
071132a9 | 3765 | while (pos < *limit) |
35027d0c | 3766 | { |
071132a9 | 3767 | Lisp_Object category; |
35027d0c KH |
3768 | |
3769 | if (NILP (string)) | |
3770 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3771 | else | |
3772 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 KH |
3773 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
3774 | if (EQ (category, QCf) | |
3775 | || CHAR_VARIATION_SELECTOR_P (c)) | |
3776 | continue; | |
071132a9 | 3777 | if (NILP (font_object)) |
35027d0c | 3778 | { |
071132a9 KH |
3779 | font_object = font_for_char (face, c, pos - 1, string); |
3780 | if (NILP (font_object)) | |
3781 | return Qnil; | |
35027d0c KH |
3782 | continue; |
3783 | } | |
0e5d7800 KH |
3784 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3785 | *limit = pos - 1; | |
35027d0c | 3786 | } |
071132a9 | 3787 | return font_object; |
10d16101 | 3788 | } |
071132a9 | 3789 | #endif |
10d16101 | 3790 | |
c2f5bfd6 KH |
3791 | \f |
3792 | /* Lisp API */ | |
3793 | ||
35027d0c | 3794 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3795 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3796 | Return nil otherwise. |
3797 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3798 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3799 | `font-object'. */) |
5842a27b | 3800 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3801 | { |
35027d0c KH |
3802 | if (NILP (extra_type)) |
3803 | return (FONTP (object) ? Qt : Qnil); | |
3804 | if (EQ (extra_type, Qfont_spec)) | |
3805 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3806 | if (EQ (extra_type, Qfont_entity)) | |
3807 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3808 | if (EQ (extra_type, Qfont_object)) | |
3809 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3810 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3811 | } |
3812 | ||
3813 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, | |
45eb10fb KH |
3814 | doc: /* Return a newly created font-spec with arguments as properties. |
3815 | ||
3816 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3817 | valid font property name listed below: | |
3818 | ||
3819 | `:family', `:weight', `:slant', `:width' | |
3820 | ||
3821 | They are the same as face attributes of the same name. See | |
51c01100 | 3822 | `set-face-attribute'. |
45eb10fb KH |
3823 | |
3824 | `:foundry' | |
3825 | ||
3826 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3827 | ||
3828 | `:adstyle' | |
3829 | ||
3830 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3831 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3832 | |
3833 | `:registry' | |
3834 | ||
3835 | VALUE must be a string or a symbol specifying the charset registry and | |
3836 | encoding of a font, e.g. ``iso8859-1''. | |
3837 | ||
3838 | `:size' | |
3839 | ||
3840 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3841 | specifying the font size. It specifies the font size in pixels (if |
3842 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3843 | |
3844 | `:name' | |
3845 | ||
7a18a178 | 3846 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3847 | |
3848 | `:script' | |
3849 | ||
3850 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3851 | support. It may be a symbol representing a subgroup of a script |
3852 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3853 | |
3854 | `:lang' | |
3855 | ||
3856 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3857 | e.g. `ja'. | |
3858 | ||
3859 | `:otf' | |
3860 | ||
3861 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3862 | required OpenType features. | |
3863 | ||
3864 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3865 | LANGSYS-TAG: OpenType language system tag symbol, | |
3866 | or nil for the default language system. | |
3867 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3868 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3869 | ||
3870 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3871 | must not have any of the remaining elements. | |
3872 | ||
3873 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
22f79966 | 3874 | be an OpenType font, and whose GPOS table of `thai' script's default |
c423ecca KH |
3875 | language system must contain `mark' feature. |
3876 | ||
ba3de0e8 | 3877 | usage: (font-spec ARGS...) */) |
5842a27b | 3878 | (int nargs, Lisp_Object *args) |
c2f5bfd6 | 3879 | { |
35027d0c | 3880 | Lisp_Object spec = font_make_spec (); |
c2f5bfd6 KH |
3881 | int i; |
3882 | ||
3883 | for (i = 0; i < nargs; i += 2) | |
3884 | { | |
cccd42d5 KH |
3885 | Lisp_Object key = args[i], val; |
3886 | ||
3887 | CHECK_SYMBOL (key); | |
3888 | if (i + 1 >= nargs) | |
3889 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3890 | val = args[i + 1]; | |
c2f5bfd6 | 3891 | |
35027d0c KH |
3892 | if (EQ (key, QCname)) |
3893 | { | |
3894 | CHECK_STRING (val); | |
3895 | font_parse_name ((char *) SDATA (val), spec); | |
3896 | font_put_extra (spec, key, val); | |
3897 | } | |
c2f5bfd6 | 3898 | else |
4485a28e | 3899 | { |
35027d0c KH |
3900 | int idx = get_font_prop_index (key); |
3901 | ||
3902 | if (idx >= 0) | |
ec6fe57c | 3903 | { |
35027d0c KH |
3904 | val = font_prop_validate (idx, Qnil, val); |
3905 | if (idx < FONT_EXTRA_INDEX) | |
3906 | ASET (spec, idx, val); | |
3907 | else | |
3908 | font_put_extra (spec, key, val); | |
ec6fe57c | 3909 | } |
35027d0c KH |
3910 | else |
3911 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3912 | } |
e950d6f1 | 3913 | } |
c2f5bfd6 KH |
3914 | return spec; |
3915 | } | |
3916 | ||
35027d0c KH |
3917 | DEFUN ("copy-font-spec", Fcopy_font_spec, Scopy_font_spec, 1, 1, 0, |
3918 | doc: /* Return a copy of FONT as a font-spec. */) | |
5842a27b | 3919 | (Lisp_Object font) |
35027d0c | 3920 | { |
d26424c5 | 3921 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3922 | int i; |
3923 | ||
3924 | CHECK_FONT (font); | |
3925 | new_spec = font_make_spec (); | |
3926 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3927 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 3928 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
3929 | /* We must remove :font-entity property. */ |
3930 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3931 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3932 | { | |
3933 | if (NILP (prev)) | |
3934 | extra = XCDR (extra); | |
3935 | else | |
3936 | XSETCDR (prev, XCDR (tail)); | |
3937 | break; | |
3938 | } | |
35027d0c KH |
3939 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3940 | return new_spec; | |
3941 | } | |
3942 | ||
3943 | DEFUN ("merge-font-spec", Fmerge_font_spec, Smerge_font_spec, 2, 2, 0, | |
3944 | doc: /* Merge font-specs FROM and TO, and return a new font-spec. | |
3945 | Every specified properties in FROM override the corresponding | |
3946 | properties in TO. */) | |
5842a27b | 3947 | (Lisp_Object from, Lisp_Object to) |
35027d0c KH |
3948 | { |
3949 | Lisp_Object extra, tail; | |
3950 | int i; | |
3951 | ||
3952 | CHECK_FONT (from); | |
3953 | CHECK_FONT (to); | |
3954 | to = Fcopy_font_spec (to); | |
3955 | for (i = 0; i < FONT_EXTRA_INDEX; i++) | |
3956 | ASET (to, i, AREF (from, i)); | |
3957 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3958 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3959 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3960 | { | |
3961 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3962 | ||
3963 | if (! NILP (slot)) | |
3964 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3965 | else | |
3966 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3967 | } | |
3968 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3969 | return to; | |
3970 | } | |
c2f5bfd6 KH |
3971 | |
3972 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, | |
45eb10fb | 3973 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 3974 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 3975 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 3976 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 3977 | :size, :name, :script, :otf |
5bdd4dd2 | 3978 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
3979 | In addition, if FONT is a font-entity or a font-object, values of |
3980 | :script and :otf are different from those of a font-spec as below: | |
3981 | ||
3982 | The value of :script may be a list of scripts that are supported by the font. | |
3983 | ||
3984 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
3985 | representing the OpenType features supported by the font by this form: | |
3986 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3987 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
3988 | Layout tags. */) | |
5842a27b | 3989 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 3990 | { |
35027d0c | 3991 | int idx; |
a7840ffb | 3992 | Lisp_Object val; |
c2f5bfd6 | 3993 | |
35027d0c KH |
3994 | CHECK_FONT (font); |
3995 | CHECK_SYMBOL (key); | |
e80e09b4 | 3996 | |
35027d0c | 3997 | idx = get_font_prop_index (key); |
2babb359 KH |
3998 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3999 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 4000 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 4001 | return AREF (font, idx); |
a7840ffb KH |
4002 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
4003 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
4004 | { | |
4005 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 4006 | |
f6c1c771 KH |
4007 | if (fontp->driver->otf_capability) |
4008 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 4009 | else |
f6c1c771 KH |
4010 | val = Fcons (Qnil, Qnil); |
4011 | font_put_extra (font, QCotf, val); | |
a7840ffb KH |
4012 | } |
4013 | else | |
4014 | val = Fcdr (val); | |
4015 | return val; | |
c2f5bfd6 KH |
4016 | } |
4017 | ||
51cf11be AS |
4018 | #ifdef HAVE_WINDOW_SYSTEM |
4019 | ||
b1868a1a CY |
4020 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
4021 | doc: /* Return a plist of face attributes generated by FONT. | |
4022 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
4023 | The return value is a list of the form | |
4024 | ||
6f568955 | 4025 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 4026 | |
48105a6a | 4027 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
4028 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
4029 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 4030 | |
48105a6a JB |
4031 | The optional argument FRAME specifies the frame that the face attributes |
4032 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 4033 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a CY |
4034 | { |
4035 | struct frame *f; | |
4036 | Lisp_Object plist[10]; | |
4037 | Lisp_Object val; | |
5989ba2f | 4038 | int n = 0; |
b1868a1a CY |
4039 | |
4040 | if (NILP (frame)) | |
4041 | frame = selected_frame; | |
4042 | CHECK_LIVE_FRAME (frame); | |
4043 | f = XFRAME (frame); | |
4044 | ||
4045 | if (STRINGP (font)) | |
4046 | { | |
4047 | int fontset = fs_query_fontset (font, 0); | |
4048 | Lisp_Object name = font; | |
4049 | if (fontset >= 0) | |
4050 | font = fontset_ascii (fontset); | |
4051 | font = font_spec_from_name (name); | |
4052 | if (! FONTP (font)) | |
4053 | signal_error ("Invalid font name", name); | |
4054 | } | |
4055 | else if (! FONTP (font)) | |
4056 | signal_error ("Invalid font object", font); | |
4057 | ||
b1868a1a | 4058 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4059 | if (! NILP (val)) |
4060 | { | |
4061 | plist[n++] = QCfamily; | |
4062 | plist[n++] = SYMBOL_NAME (val); | |
4063 | } | |
b1868a1a | 4064 | |
b1868a1a CY |
4065 | val = AREF (font, FONT_SIZE_INDEX); |
4066 | if (INTEGERP (val)) | |
4067 | { | |
4068 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
4069 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy; | |
5989ba2f | 4070 | plist[n++] = QCheight; |
c3bb5465 | 4071 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4072 | } |
4073 | else if (FLOATP (val)) | |
5989ba2f CY |
4074 | { |
4075 | plist[n++] = QCheight; | |
4076 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4077 | } | |
b1868a1a | 4078 | |
b1868a1a | 4079 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4080 | if (! NILP (val)) |
4081 | { | |
4082 | plist[n++] = QCweight; | |
4083 | plist[n++] = val; | |
4084 | } | |
b1868a1a | 4085 | |
b1868a1a | 4086 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4087 | if (! NILP (val)) |
4088 | { | |
4089 | plist[n++] = QCslant; | |
4090 | plist[n++] = val; | |
4091 | } | |
b1868a1a | 4092 | |
b1868a1a | 4093 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4094 | if (! NILP (val)) |
4095 | { | |
4096 | plist[n++] = QCwidth; | |
4097 | plist[n++] = val; | |
4098 | } | |
b1868a1a | 4099 | |
5989ba2f | 4100 | return Flist (n, plist); |
b1868a1a | 4101 | } |
c2f5bfd6 | 4102 | |
51cf11be AS |
4103 | #endif |
4104 | ||
c2f5bfd6 | 4105 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4106 | doc: /* Set one property of FONT: give property KEY value VAL. |
4107 | FONT is a font-spec, a font-entity, or a font-object. | |
4108 | ||
4109 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4110 | accepted by the function `font-spec' (which see), VAL must be what | |
4111 | allowed in `font-spec'. | |
4112 | ||
4113 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4114 | accepted by `font-spec'. */) | |
e1ffae3b | 4115 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4116 | { |
35027d0c | 4117 | int idx; |
c2f5bfd6 | 4118 | |
35027d0c KH |
4119 | idx = get_font_prop_index (prop); |
4120 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4121 | { |
4122 | CHECK_FONT_SPEC (font); | |
4123 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4124 | } | |
c2f5bfd6 | 4125 | else |
a7840ffb KH |
4126 | { |
4127 | if (EQ (prop, QCname) | |
4128 | || EQ (prop, QCscript) | |
4129 | || EQ (prop, QClang) | |
4130 | || EQ (prop, QCotf)) | |
4131 | CHECK_FONT_SPEC (font); | |
4132 | else | |
4133 | CHECK_FONT (font); | |
4134 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4135 | } | |
c2f5bfd6 KH |
4136 | return val; |
4137 | } | |
4138 | ||
4139 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, | |
4140 | doc: /* List available fonts matching FONT-SPEC on the current frame. | |
4141 | Optional 2nd argument FRAME specifies the target frame. | |
4142 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4143 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4144 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4145 | how close they are to PREFER. */) |
5842a27b | 4146 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4147 | { |
72d36834 KH |
4148 | Lisp_Object vec, list; |
4149 | int n = 0; | |
c2f5bfd6 KH |
4150 | |
4151 | if (NILP (frame)) | |
4152 | frame = selected_frame; | |
4153 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 4154 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4155 | if (! NILP (num)) |
4156 | { | |
4157 | CHECK_NUMBER (num); | |
4158 | n = XINT (num); | |
4159 | if (n <= 0) | |
4160 | return Qnil; | |
4161 | } | |
4162 | if (! NILP (prefer)) | |
35027d0c | 4163 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4164 | |
72d36834 KH |
4165 | list = font_list_entities (frame, font_spec); |
4166 | if (NILP (list)) | |
c2f5bfd6 | 4167 | return Qnil; |
72d36834 KH |
4168 | if (NILP (XCDR (list)) |
4169 | && ASIZE (XCAR (list)) == 1) | |
4170 | return Fcons (AREF (XCAR (list), 0), Qnil); | |
c2f5bfd6 KH |
4171 | |
4172 | if (! NILP (prefer)) | |
72d36834 KH |
4173 | vec = font_sort_entities (list, prefer, frame, 0); |
4174 | else | |
4175 | vec = font_vconcat_entity_vectors (list); | |
4176 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4177 | { |
72d36834 | 4178 | Lisp_Object args[2]; |
c2f5bfd6 | 4179 | |
72d36834 KH |
4180 | args[0] = vec; |
4181 | args[1] = Qnil; | |
4182 | list = Fappend (2, args); | |
4183 | } | |
4184 | else | |
4185 | { | |
4186 | for (list = Qnil, n--; n >= 0; n--) | |
4187 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4188 | } |
4189 | return list; | |
4190 | } | |
4191 | ||
35027d0c | 4192 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4193 | doc: /* List available font families on the current frame. |
027a33c0 | 4194 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
5842a27b | 4195 | (Lisp_Object frame) |
c2f5bfd6 KH |
4196 | { |
4197 | FRAME_PTR f; | |
4198 | struct font_driver_list *driver_list; | |
4199 | Lisp_Object list; | |
4200 | ||
4201 | if (NILP (frame)) | |
4202 | frame = selected_frame; | |
4203 | CHECK_LIVE_FRAME (frame); | |
4204 | f = XFRAME (frame); | |
4205 | list = Qnil; | |
4206 | for (driver_list = f->font_driver_list; driver_list; | |
4207 | driver_list = driver_list->next) | |
4208 | if (driver_list->driver->list_family) | |
4209 | { | |
4210 | Lisp_Object val = driver_list->driver->list_family (frame); | |
13bf758b | 4211 | Lisp_Object tail = list; |
c2f5bfd6 | 4212 | |
13bf758b CY |
4213 | for (; CONSP (val); val = XCDR (val)) |
4214 | if (NILP (Fmemq (XCAR (val), tail)) | |
4215 | && SYMBOLP (XCAR (val))) | |
4216 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4217 | } |
4218 | return list; | |
4219 | } | |
4220 | ||
4221 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4222 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4223 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4224 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4225 | { |
4226 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4227 | ||
4228 | if (CONSP (val)) | |
4229 | val = XCAR (val); | |
4230 | return val; | |
4231 | } | |
4232 | ||
d0ab1ebe | 4233 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4234 | doc: /* Return XLFD name of FONT. |
4235 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4236 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4237 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
4238 | the consecutive wildcards are folded to one. */) | |
5842a27b | 4239 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4240 | { |
4241 | char name[256]; | |
4242 | int pixel_size = 0; | |
4243 | ||
35027d0c KH |
4244 | CHECK_FONT (font); |
4245 | ||
4246 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4247 | { |
35027d0c | 4248 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4249 | |
35027d0c KH |
4250 | if (STRINGP (font_name) |
4251 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4252 | { |
4253 | if (NILP (fold_wildcards)) | |
4254 | return font_name; | |
4255 | strcpy (name, (char *) SDATA (font_name)); | |
4256 | goto done; | |
4257 | } | |
35027d0c | 4258 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4259 | } |
c2f5bfd6 KH |
4260 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
4261 | return Qnil; | |
d0ab1ebe KH |
4262 | done: |
4263 | if (! NILP (fold_wildcards)) | |
4264 | { | |
4265 | char *p0 = name, *p1; | |
4266 | ||
4267 | while ((p1 = strstr (p0, "-*-*"))) | |
4268 | { | |
4269 | strcpy (p1, p1 + 2); | |
4270 | p0 = p1; | |
4271 | } | |
4272 | } | |
4273 | ||
c2f5bfd6 KH |
4274 | return build_string (name); |
4275 | } | |
4276 | ||
4277 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
4278 | doc: /* Clear font cache. */) | |
5842a27b | 4279 | (void) |
c2f5bfd6 KH |
4280 | { |
4281 | Lisp_Object list, frame; | |
4282 | ||
4283 | FOR_EACH_FRAME (list, frame) | |
4284 | { | |
4285 | FRAME_PTR f = XFRAME (frame); | |
4286 | struct font_driver_list *driver_list = f->font_driver_list; | |
4287 | ||
4288 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
4289 | if (driver_list->on) |
4290 | { | |
ca4da08a | 4291 | Lisp_Object cache = driver_list->driver->get_cache (f); |
7a6f7fea | 4292 | Lisp_Object val, tmp; |
51c01100 | 4293 | |
ca4da08a | 4294 | val = XCDR (cache); |
43c0454d KH |
4295 | while (! NILP (val) |
4296 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 4297 | val = XCDR (val); |
d0ab1ebe | 4298 | font_assert (! NILP (val)); |
7a6f7fea AS |
4299 | tmp = XCDR (XCAR (val)); |
4300 | if (XINT (XCAR (tmp)) == 0) | |
417a1b10 | 4301 | { |
ca4da08a KH |
4302 | font_clear_cache (f, XCAR (val), driver_list->driver); |
4303 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 4304 | } |
417a1b10 | 4305 | } |
c2f5bfd6 KH |
4306 | } |
4307 | ||
4308 | return Qnil; | |
4309 | } | |
4310 | ||
071132a9 KH |
4311 | \f |
4312 | void | |
971de7fb | 4313 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4314 | { |
071132a9 | 4315 | struct font *font = XFONT_OBJECT (font_object); |
f62ab7c5 EZ |
4316 | unsigned code; |
4317 | /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */ | |
4318 | EMACS_INT ecode = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); | |
071132a9 | 4319 | struct font_metrics metrics; |
c2f5bfd6 | 4320 | |
f62ab7c5 EZ |
4321 | LGLYPH_SET_CODE (glyph, ecode); |
4322 | code = ecode; | |
071132a9 KH |
4323 | font->driver->text_extents (font, &code, 1, &metrics); |
4324 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4325 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4326 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4327 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4328 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4329 | } |
4330 | ||
c2f5bfd6 | 4331 | |
071132a9 KH |
4332 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4333 | doc: /* Shape the glyph-string GSTRING. | |
4334 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4335 | to get the correct visual image of character sequences set in the | |
4336 | header of the glyph-string. | |
1701724c | 4337 | |
071132a9 KH |
4338 | If the shaping was successful, the value is GSTRING itself or a newly |
4339 | created glyph-string. Otherwise, the value is nil. */) | |
5842a27b | 4340 | (Lisp_Object gstring) |
1701724c KH |
4341 | { |
4342 | struct font *font; | |
071132a9 | 4343 | Lisp_Object font_object, n, glyph; |
fc3a285e | 4344 | int i, j, from, to; |
ba3de0e8 | 4345 | |
071132a9 KH |
4346 | if (! composition_gstring_p (gstring)) |
4347 | signal_error ("Invalid glyph-string: ", gstring); | |
4348 | if (! NILP (LGSTRING_ID (gstring))) | |
4349 | return gstring; | |
4350 | font_object = LGSTRING_FONT (gstring); | |
4351 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4352 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4353 | if (! font->driver->shape) |
4354 | return Qnil; | |
4355 | ||
40fb53d6 KH |
4356 | /* Try at most three times with larger gstring each time. */ |
4357 | for (i = 0; i < 3; i++) | |
4358 | { | |
40fb53d6 KH |
4359 | n = font->driver->shape (gstring); |
4360 | if (INTEGERP (n)) | |
4361 | break; | |
071132a9 KH |
4362 | gstring = larger_vector (gstring, |
4363 | ASIZE (gstring) + LGSTRING_GLYPH_LEN (gstring), | |
4364 | Qnil); | |
40fb53d6 | 4365 | } |
071132a9 | 4366 | if (i == 3 || XINT (n) == 0) |
1701724c | 4367 | return Qnil; |
dfe3c90f KH |
4368 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4369 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4370 | |
071132a9 | 4371 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4372 | from = LGLYPH_FROM (glyph); |
4373 | to = LGLYPH_TO (glyph); | |
4374 | for (i = 1, j = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 KH |
4375 | { |
4376 | Lisp_Object this = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 4377 | |
071132a9 KH |
4378 | if (NILP (this)) |
4379 | break; | |
4380 | if (NILP (LGLYPH_ADJUSTMENT (this))) | |
fc3a285e KH |
4381 | { |
4382 | if (j < i - 1) | |
4383 | for (; j < i; j++) | |
4384 | { | |
4385 | glyph = LGSTRING_GLYPH (gstring, j); | |
4386 | LGLYPH_SET_FROM (glyph, from); | |
4387 | LGLYPH_SET_TO (glyph, to); | |
4388 | } | |
4389 | from = LGLYPH_FROM (this); | |
4390 | to = LGLYPH_TO (this); | |
4391 | j = i; | |
4392 | } | |
071132a9 | 4393 | else |
b2937119 | 4394 | { |
fc3a285e KH |
4395 | if (from > LGLYPH_FROM (this)) |
4396 | from = LGLYPH_FROM (this); | |
4397 | if (to < LGLYPH_TO (this)) | |
4398 | to = LGLYPH_TO (this); | |
b2937119 | 4399 | } |
10d16101 | 4400 | } |
fc3a285e KH |
4401 | if (j < i - 1) |
4402 | for (; j < i; j++) | |
4403 | { | |
4404 | glyph = LGSTRING_GLYPH (gstring, j); | |
4405 | LGLYPH_SET_FROM (glyph, from); | |
4406 | LGLYPH_SET_TO (glyph, to); | |
4407 | } | |
071132a9 | 4408 | return composition_gstring_put_cache (gstring, XINT (n)); |
c2f5bfd6 KH |
4409 | } |
4410 | ||
78a2f9cd KH |
4411 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4412 | 2, 2, 0, | |
4413 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4414 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4415 | where | |
c0943d3d | 4416 | VARIATION-SELECTOR is a character code of variation selection |
78a2f9cd KH |
4417 | (#xFE00..#xFE0F or #xE0100..#xE01EF) |
4418 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4419 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4420 | { |
4421 | unsigned variations[256]; | |
4422 | struct font *font; | |
4423 | int i, n; | |
4424 | Lisp_Object val; | |
4425 | ||
4426 | CHECK_FONT_OBJECT (font_object); | |
4427 | CHECK_CHARACTER (character); | |
4428 | font = XFONT_OBJECT (font_object); | |
4429 | if (! font->driver->get_variation_glyphs) | |
4430 | return Qnil; | |
4431 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4432 | if (! n) | |
4433 | return Qnil; | |
4434 | val = Qnil; | |
4435 | for (i = 0; i < 255; i++) | |
4436 | if (variations[i]) | |
4437 | { | |
4438 | Lisp_Object code; | |
4439 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); | |
b60861e6 GM |
4440 | /* Stops GCC whining about limited range of data type. */ |
4441 | EMACS_INT var = variations[i]; | |
78a2f9cd | 4442 | |
b60861e6 | 4443 | if (var > MOST_POSITIVE_FIXNUM) |
78a2f9cd KH |
4444 | code = Fcons (make_number ((variations[i]) >> 16), |
4445 | make_number ((variations[i]) & 0xFFFF)); | |
4446 | else | |
4447 | code = make_number (variations[i]); | |
4448 | val = Fcons (Fcons (make_number (vs), code), val); | |
4449 | } | |
4450 | return val; | |
4451 | } | |
4452 | ||
6a3dadd2 KH |
4453 | #if 0 |
4454 | ||
733fd013 KH |
4455 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
4456 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. | |
51c01100 | 4457 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4458 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4459 | where |
4460 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4461 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4462 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4463 | |
4464 | If LANGYS is nil, the default langsys is selected. | |
4465 | ||
51c01100 JB |
4466 | The features are applied in the order they appear in the list. The |
4467 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4468 | list, and the remaining features are ignored. For instance, (vatu |
4469 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4470 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4471 | |
4472 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4473 | the glyph-string GSTRING-IN. |
e80e09b4 | 4474 | |
51c01100 | 4475 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4476 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4477 | this case, the value is the number of produced glyphs. | |
4478 | ||
4479 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4480 | the value is 0. | |
4481 | ||
51c01100 | 4482 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4483 | produced in GSTRING-OUT, and the value is nil. |
4484 | ||
4485 | See the documentation of `font-make-gstring' for the format of | |
4486 | glyph-string. */) | |
5842a27b | 4487 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4488 | { |
4489 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4490 | Lisp_Object val; |
4491 | struct font *font; | |
e80e09b4 KH |
4492 | int len, num; |
4493 | ||
733fd013 | 4494 | check_otf_features (otf_features); |
35027d0c KH |
4495 | CHECK_FONT_OBJECT (font_object); |
4496 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4497 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4498 | error ("Font backend %s can't drive OpenType GSUB table", |
4499 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4500 | CHECK_CONS (otf_features); |
4501 | CHECK_SYMBOL (XCAR (otf_features)); | |
4502 | val = XCDR (otf_features); | |
4503 | CHECK_SYMBOL (XCAR (val)); | |
4504 | val = XCDR (otf_features); | |
4505 | if (! NILP (val)) | |
4506 | CHECK_CONS (val); | |
e80e09b4 KH |
4507 | len = check_gstring (gstring_in); |
4508 | CHECK_VECTOR (gstring_out); | |
4509 | CHECK_NATNUM (from); | |
4510 | CHECK_NATNUM (to); | |
4511 | CHECK_NATNUM (index); | |
4512 | ||
4513 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4514 | args_out_of_range_3 (from, to, make_number (len)); | |
4515 | if (XINT (index) >= ASIZE (gstring_out)) | |
4516 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4517 | num = font->driver->otf_drive (font, otf_features, |
4518 | gstring_in, XINT (from), XINT (to), | |
4519 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4520 | if (num < 0) |
4521 | return Qnil; | |
4522 | return make_number (num); | |
4523 | } | |
4524 | ||
e80e09b4 KH |
4525 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
4526 | 3, 3, 0, | |
4527 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4528 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4529 | in this format: |
4530 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4531 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4532 | |
4533 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4534 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4535 | character code corresponding to the glyph or nil if there's no | |
4536 | corresponding character. */) | |
5842a27b | 4537 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4538 | { |
4539 | struct font *font; | |
4540 | Lisp_Object gstring_in, gstring_out, g; | |
4541 | Lisp_Object alternates; | |
4542 | int i, num; | |
4543 | ||
4544 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4545 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4546 | error ("Font backend %s can't drive OpenType GSUB table", |
4547 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4548 | CHECK_CHARACTER (character); |
733fd013 | 4549 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4550 | |
4551 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4552 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4553 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4554 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4555 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4556 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4557 | gstring_out = Ffont_make_gstring (font_object, |
4558 | make_number (ASIZE (gstring_out) * 2)); | |
4559 | alternates = Qnil; | |
4560 | for (i = 0; i < num; i++) | |
4561 | { | |
4562 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4563 | int c = LGLYPH_CHAR (g); |
4564 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4565 | |
4566 | alternates = Fcons (Fcons (make_number (code), | |
4567 | c > 0 ? make_number (c) : Qnil), | |
4568 | alternates); | |
4569 | } | |
4570 | return Fnreverse (alternates); | |
4571 | } | |
6a3dadd2 | 4572 | #endif /* 0 */ |
c2f5bfd6 KH |
4573 | |
4574 | #ifdef FONT_DEBUG | |
4575 | ||
4576 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4577 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4578 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 KH |
4579 | { |
4580 | int isize; | |
4581 | ||
4582 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4583 | if (NILP (frame)) |
4584 | frame = selected_frame; | |
4585 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4586 | |
35027d0c KH |
4587 | if (NILP (size)) |
4588 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4589 | else | |
4590 | { | |
4591 | CHECK_NUMBER_OR_FLOAT (size); | |
4592 | if (FLOATP (size)) | |
d03b5cdb | 4593 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), XFRAME (frame)->resy); |
35027d0c KH |
4594 | else |
4595 | isize = XINT (size); | |
4596 | if (isize == 0) | |
4597 | isize = 120; | |
4598 | } | |
c2f5bfd6 KH |
4599 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4600 | } | |
4601 | ||
4602 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4603 | doc: /* Close FONT-OBJECT. */) | |
5842a27b | 4604 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4605 | { |
4606 | CHECK_FONT_OBJECT (font_object); | |
4607 | if (NILP (frame)) | |
4608 | frame = selected_frame; | |
4609 | CHECK_LIVE_FRAME (frame); | |
4610 | font_close_object (XFRAME (frame), font_object); | |
4611 | return Qnil; | |
4612 | } | |
4613 | ||
4614 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4615 | doc: /* Return information about FONT-OBJECT. |
4616 | The value is a vector: | |
4617 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4618 | CAPABILITY ] |
e80e09b4 KH |
4619 | |
4620 | NAME is a string of the font name (or nil if the font backend doesn't | |
4621 | provide a name). | |
4622 | ||
4623 | FILENAME is a string of the font file (or nil if the font backend | |
4624 | doesn't provide a file name). | |
4625 | ||
4626 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4627 | ||
027a33c0 | 4628 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4629 | |
4630 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4631 | pixels. |
e80e09b4 | 4632 | |
e0708580 KH |
4633 | CAPABILITY is a list whose first element is a symbol representing the |
4634 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4635 | remaining elements describe the details of the font capability. |
e0708580 KH |
4636 | |
4637 | If the font is OpenType font, the form of the list is | |
4638 | \(opentype GSUB GPOS) | |
4639 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4640 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4641 | lists of the format: | |
4642 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4643 | ||
4644 | If the font is not OpenType font, currently the length of the form is | |
4645 | one. | |
e80e09b4 KH |
4646 | |
4647 | SCRIPT is a symbol representing OpenType script tag. | |
4648 | ||
4649 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4650 | representing the default langsys. | |
4651 | ||
51c01100 | 4652 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4653 | |
51c01100 | 4654 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4655 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4656 | { |
4657 | struct font *font; | |
4658 | Lisp_Object val; | |
4659 | ||
4660 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4661 | ||
4662 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4663 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4664 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4665 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4666 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4667 | ASET (val, 4, make_number (font->ascent)); |
4668 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4669 | ASET (val, 6, make_number (font->space_width)); |
4670 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4671 | if (font->driver->otf_capability) |
e0708580 | 4672 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4673 | return val; |
4674 | } | |
4675 | ||
a7840ffb KH |
4676 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4677 | doc: | |
4678 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4679 | FROM and TO are positions (integers or markers) specifying a region | |
4680 | of the current buffer. | |
4681 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4682 | vector containing the target characters. | |
4683 | ||
4684 | Each element is a vector containing information of a glyph in this format: | |
4685 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4686 | where | |
4687 | FROM is an index numbers of a character the glyph corresponds to. | |
4688 | TO is the same as FROM. | |
4689 | C is the character of the glyph. | |
4690 | CODE is the glyph-code of C in FONT-OBJECT. | |
4691 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4692 | ADJUSTMENT is always nil. | |
4693 | If FONT-OBJECT doesn't have a glyph for a character, | |
4694 | the corresponding element is nil. */) | |
e1ffae3b KH |
4695 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4696 | Lisp_Object object) | |
c2f5bfd6 KH |
4697 | { |
4698 | struct font *font; | |
a7840ffb KH |
4699 | int i, len, c; |
4700 | Lisp_Object *chars, vec; | |
4701 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4702 | |
4703 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4704 | if (NILP (object)) |
4705 | { | |
4706 | EMACS_INT charpos, bytepos; | |
4707 | ||
4708 | validate_region (&from, &to); | |
4709 | if (EQ (from, to)) | |
4710 | return Qnil; | |
4711 | len = XFASTINT (to) - XFASTINT (from); | |
4712 | SAFE_ALLOCA_LISP (chars, len); | |
4713 | charpos = XFASTINT (from); | |
4714 | bytepos = CHAR_TO_BYTE (charpos); | |
4715 | for (i = 0; charpos < XFASTINT (to); i++) | |
4716 | { | |
4717 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); | |
4718 | chars[i] = make_number (c); | |
4719 | } | |
4720 | } | |
4721 | else if (STRINGP (object)) | |
4722 | { | |
4723 | const unsigned char *p; | |
4724 | ||
4725 | CHECK_NUMBER (from); | |
4726 | CHECK_NUMBER (to); | |
4727 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4728 | || XINT (to) > SCHARS (object)) | |
4729 | args_out_of_range_3 (object, from, to); | |
4730 | if (EQ (from, to)) | |
4731 | return Qnil; | |
4732 | len = XFASTINT (to) - XFASTINT (from); | |
4733 | SAFE_ALLOCA_LISP (chars, len); | |
4734 | p = SDATA (object); | |
4735 | if (STRING_MULTIBYTE (object)) | |
4736 | for (i = 0; i < len; i++) | |
4737 | { | |
4738 | c = STRING_CHAR_ADVANCE (p); | |
4739 | chars[i] = make_number (c); | |
4740 | } | |
4741 | else | |
4742 | for (i = 0; i < len; i++) | |
4743 | chars[i] = make_number (p[i]); | |
4744 | } | |
4745 | else | |
4746 | { | |
4747 | CHECK_VECTOR (object); | |
4748 | CHECK_NUMBER (from); | |
4749 | CHECK_NUMBER (to); | |
4750 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4751 | || XINT (to) > ASIZE (object)) | |
4752 | args_out_of_range_3 (object, from, to); | |
4753 | if (EQ (from, to)) | |
4754 | return Qnil; | |
4755 | len = XFASTINT (to) - XFASTINT (from); | |
4756 | for (i = 0; i < len; i++) | |
4757 | { | |
4758 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4759 | CHECK_CHARACTER (elt); | |
4760 | } | |
4761 | chars = &(AREF (object, XFASTINT (from))); | |
4762 | } | |
4763 | ||
c2f5bfd6 KH |
4764 | vec = Fmake_vector (make_number (len), Qnil); |
4765 | for (i = 0; i < len; i++) | |
4766 | { | |
a7840ffb KH |
4767 | Lisp_Object g; |
4768 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 | 4769 | unsigned code; |
2930d117 | 4770 | EMACS_INT cod; |
c2f5bfd6 KH |
4771 | struct font_metrics metrics; |
4772 | ||
2930d117 | 4773 | cod = code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4774 | if (code == FONT_INVALID_CODE) |
4775 | continue; | |
a7840ffb KH |
4776 | g = Fmake_vector (make_number (LGLYPH_SIZE), Qnil); |
4777 | LGLYPH_SET_FROM (g, i); | |
4778 | LGLYPH_SET_TO (g, i); | |
4779 | LGLYPH_SET_CHAR (g, c); | |
4780 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4781 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4782 | LGLYPH_SET_WIDTH (g, metrics.width); |
4783 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4784 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4785 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4786 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4787 | ASET (vec, i, g); | |
4788 | } | |
4789 | if (! VECTORP (object)) | |
4790 | SAFE_FREE (); | |
c2f5bfd6 KH |
4791 | return vec; |
4792 | } | |
4793 | ||
ec6fe57c | 4794 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4795 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4796 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4797 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4798 | { |
4799 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4800 | CHECK_FONT (font); |
ec6fe57c KH |
4801 | |
4802 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4803 | } | |
4804 | ||
1701724c | 4805 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4806 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4807 | Optional second arg WINDOW, if non-nil, is a window displaying |
4808 | the current buffer. It defaults to the currently selected window. */) | |
5842a27b | 4809 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 KH |
4810 | { |
4811 | struct window *w; | |
e3ee0340 | 4812 | EMACS_INT pos; |
10d16101 | 4813 | |
1701724c KH |
4814 | if (NILP (string)) |
4815 | { | |
4816 | CHECK_NUMBER_COERCE_MARKER (position); | |
4817 | pos = XINT (position); | |
4818 | if (pos < BEGV || pos >= ZV) | |
4819 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4820 | } |
4821 | else | |
4822 | { | |
1701724c KH |
4823 | CHECK_NUMBER (position); |
4824 | CHECK_STRING (string); | |
4825 | pos = XINT (position); | |
4826 | if (pos < 0 || pos >= SCHARS (string)) | |
4827 | args_out_of_range (string, position); | |
1701724c | 4828 | } |
10d16101 KH |
4829 | if (NILP (window)) |
4830 | window = selected_window; | |
4831 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4832 | w = XWINDOW (window); |
10d16101 | 4833 | |
40fb53d6 | 4834 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4835 | } |
4836 | ||
c2f5bfd6 KH |
4837 | #if 0 |
4838 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4839 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4840 | The value is a number of glyphs drawn. | |
4841 | Type C-l to recover what previously shown. */) | |
5842a27b | 4842 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4843 | { |
4844 | Lisp_Object frame = selected_frame; | |
4845 | FRAME_PTR f = XFRAME (frame); | |
4846 | struct font *font; | |
4847 | struct face *face; | |
4848 | int i, len, width; | |
4849 | unsigned *code; | |
4850 | ||
4851 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4852 | CHECK_STRING (string); | |
4853 | len = SCHARS (string); | |
4854 | code = alloca (sizeof (unsigned) * len); | |
4855 | for (i = 0; i < len; i++) | |
4856 | { | |
4857 | Lisp_Object ch = Faref (string, make_number (i)); | |
4858 | Lisp_Object val; | |
4859 | int c = XINT (ch); | |
4860 | ||
4861 | code[i] = font->driver->encode_char (font, c); | |
4862 | if (code[i] == FONT_INVALID_CODE) | |
4863 | break; | |
4864 | } | |
4865 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4866 | face->fontp = font; | |
4867 | if (font->driver->prepare_face) | |
4868 | font->driver->prepare_face (f, face); | |
4869 | width = font->driver->text_extents (font, code, i, NULL); | |
4870 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4871 | if (font->driver->done_face) | |
4872 | font->driver->done_face (f, face); | |
4873 | face->fontp = NULL; | |
4874 | return make_number (len); | |
4875 | } | |
4876 | #endif | |
4877 | ||
4878 | #endif /* FONT_DEBUG */ | |
4879 | ||
a266686a KH |
4880 | #ifdef HAVE_WINDOW_SYSTEM |
4881 | ||
72606e45 KH |
4882 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4883 | doc: /* Return information about a font named NAME on frame FRAME. | |
4884 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4885 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4886 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4887 | where | |
4888 | OPENED-NAME is the name used for opening the font, | |
4889 | FULL-NAME is the full name of the font, | |
06f19b91 KH |
4890 | SIZE is the pixelsize of the font, |
4891 | HEIGHT is the pixel-height of the font (i.e ascent + descent), | |
72606e45 KH |
4892 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4893 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4894 | how to compose characters. | |
4895 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4896 | (Lisp_Object name, Lisp_Object frame) |
72606e45 KH |
4897 | { |
4898 | FRAME_PTR f; | |
4899 | struct font *font; | |
4900 | Lisp_Object info; | |
4901 | Lisp_Object font_object; | |
4902 | ||
4903 | (*check_window_system_func) (); | |
4904 | ||
4905 | if (! FONTP (name)) | |
4906 | CHECK_STRING (name); | |
4907 | if (NILP (frame)) | |
4908 | frame = selected_frame; | |
4909 | CHECK_LIVE_FRAME (frame); | |
4910 | f = XFRAME (frame); | |
4911 | ||
4912 | if (STRINGP (name)) | |
4913 | { | |
4914 | int fontset = fs_query_fontset (name, 0); | |
4915 | ||
4916 | if (fontset >= 0) | |
4917 | name = fontset_ascii (fontset); | |
4918 | font_object = font_open_by_name (f, (char *) SDATA (name)); | |
4919 | } | |
4920 | else if (FONT_OBJECT_P (name)) | |
4921 | font_object = name; | |
4922 | else if (FONT_ENTITY_P (name)) | |
4923 | font_object = font_open_entity (f, name, 0); | |
4924 | else | |
4925 | { | |
4926 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4927 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4928 | ||
4929 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4930 | } | |
4931 | if (NILP (font_object)) | |
4932 | return Qnil; | |
4933 | font = XFONT_OBJECT (font_object); | |
4934 | ||
4935 | info = Fmake_vector (make_number (7), Qnil); | |
4936 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
06f19b91 | 4937 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_FULLNAME_INDEX); |
72606e45 KH |
4938 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); |
4939 | XVECTOR (info)->contents[3] = make_number (font->height); | |
4940 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
4941 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
4942 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
4943 | ||
4944 | #if 0 | |
4945 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4946 | close it now. Perhaps, we should manage font-objects | |
4947 | by `reference-count'. */ | |
4948 | font_close_object (f, font_object); | |
4949 | #endif | |
4950 | return info; | |
4951 | } | |
a266686a | 4952 | #endif |
72606e45 | 4953 | |
c2f5bfd6 | 4954 | \f |
d0ab1ebe KH |
4955 | #define BUILD_STYLE_TABLE(TBL) \ |
4956 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4957 | ||
4958 | static Lisp_Object | |
971de7fb | 4959 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
4960 | { |
4961 | int i, j; | |
4962 | Lisp_Object table, elt; | |
17ab8f5d | 4963 | |
d0ab1ebe KH |
4964 | table = Fmake_vector (make_number (nelement), Qnil); |
4965 | for (i = 0; i < nelement; i++) | |
4966 | { | |
4967 | for (j = 0; entry[i].names[j]; j++); | |
4968 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4969 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4970 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 4971 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
4972 | ASET (table, i, elt); |
4973 | } | |
4974 | return table; | |
4975 | } | |
4976 | ||
652b9560 | 4977 | Lisp_Object Vfont_log; |
d0ab1ebe | 4978 | |
d0818984 KH |
4979 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4980 | If ACTION is not nil, that is added to the log when font_add_log is | |
4981 | called next time. At that time, ACTION is set back to nil. */ | |
4982 | static Lisp_Object Vfont_log_deferred; | |
4983 | ||
4984 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4985 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4986 | opening), ARG is the argument for the action, and RESULT is the | |
4987 | result of the action. */ | |
d0ab1ebe | 4988 | void |
675e2c69 | 4989 | font_add_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe KH |
4990 | { |
4991 | Lisp_Object tail, val; | |
4992 | int i; | |
4993 | ||
d0ab1ebe KH |
4994 | if (EQ (Vfont_log, Qt)) |
4995 | return; | |
d0818984 KH |
4996 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4997 | { | |
071132a9 | 4998 | char *str = (char *) SDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4999 | |
5000 | ASET (Vfont_log_deferred, 0, Qnil); | |
5001 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
5002 | AREF (Vfont_log_deferred, 2)); | |
5003 | } | |
5004 | ||
d0ab1ebe | 5005 | if (FONTP (arg)) |
db716644 KH |
5006 | { |
5007 | Lisp_Object tail, elt; | |
5008 | Lisp_Object equalstr = build_string ("="); | |
5009 | ||
5010 | val = Ffont_xlfd_name (arg, Qt); | |
5011 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
5012 | tail = XCDR (tail)) | |
5013 | { | |
5014 | elt = XCAR (tail); | |
49f9c344 KH |
5015 | if (EQ (XCAR (elt), QCscript) |
5016 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
5017 | val = concat3 (val, SYMBOL_NAME (QCscript), |
5018 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
5019 | else if (EQ (XCAR (elt), QClang) |
5020 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
5021 | val = concat3 (val, SYMBOL_NAME (QClang), |
5022 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
5023 | else if (EQ (XCAR (elt), QCotf) |
5024 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
5025 | val = concat3 (val, SYMBOL_NAME (QCotf), |
5026 | concat2 (equalstr, | |
5027 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
5028 | } | |
5029 | arg = val; | |
5030 | } | |
72d36834 KH |
5031 | |
5032 | if (CONSP (result) | |
5033 | && VECTORP (XCAR (result)) | |
5034 | && ASIZE (XCAR (result)) > 0 | |
5035 | && FONTP (AREF (XCAR (result), 0))) | |
5036 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 5037 | if (FONTP (result)) |
d26424c5 KH |
5038 | { |
5039 | val = Ffont_xlfd_name (result, Qt); | |
5040 | if (! FONT_SPEC_P (result)) | |
5041 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
5042 | build_string (":"), val); | |
5043 | result = val; | |
5044 | } | |
d0ab1ebe KH |
5045 | else if (CONSP (result)) |
5046 | { | |
5047 | result = Fcopy_sequence (result); | |
5048 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
5049 | { | |
5050 | val = XCAR (tail); | |
5051 | if (FONTP (val)) | |
5052 | val = Ffont_xlfd_name (val, Qt); | |
5053 | XSETCAR (tail, val); | |
5054 | } | |
5055 | } | |
5056 | else if (VECTORP (result)) | |
5057 | { | |
5058 | result = Fcopy_sequence (result); | |
5059 | for (i = 0; i < ASIZE (result); i++) | |
5060 | { | |
5061 | val = AREF (result, i); | |
5062 | if (FONTP (val)) | |
5063 | val = Ffont_xlfd_name (val, Qt); | |
5064 | ASET (result, i, val); | |
5065 | } | |
5066 | } | |
5067 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
5068 | } | |
5069 | ||
d0818984 KH |
5070 | /* Record a font-related logging data to be added to Vfont_log when |
5071 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
5072 | as font_add_log. */ | |
5073 | ||
5074 | void | |
675e2c69 | 5075 | font_deferred_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 5076 | { |
652b9560 KH |
5077 | if (EQ (Vfont_log, Qt)) |
5078 | return; | |
d0818984 KH |
5079 | ASET (Vfont_log_deferred, 0, build_string (action)); |
5080 | ASET (Vfont_log_deferred, 1, arg); | |
5081 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 5082 | } |
d0818984 | 5083 | |
c2f5bfd6 | 5084 | void |
971de7fb | 5085 | syms_of_font (void) |
c2f5bfd6 | 5086 | { |
4007dd1c KH |
5087 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
5088 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
5089 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5090 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5091 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5092 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5093 | |
1701724c KH |
5094 | staticpro (&font_charset_alist); |
5095 | font_charset_alist = Qnil; | |
5096 | ||
e0708580 | 5097 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5098 | |
9e1bb909 | 5099 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5100 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5101 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5102 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5103 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5104 | |
071132a9 KH |
5105 | DEFSYM (QCf, "Cf"); |
5106 | ||
c2f5bfd6 | 5107 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5108 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5109 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5110 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5111 | |
5112 | DEFSYM (QCfoundry, ":foundry"); | |
5113 | DEFSYM (QCadstyle, ":adstyle"); | |
5114 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5115 | DEFSYM (QCspacing, ":spacing"); |
5116 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5117 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5118 | DEFSYM (QCavgwidth, ":avgwidth"); |
5119 | DEFSYM (QCfont_entity, ":font-entity"); | |
5120 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5121 | |
ec6fe57c KH |
5122 | DEFSYM (Qc, "c"); |
5123 | DEFSYM (Qm, "m"); | |
5124 | DEFSYM (Qp, "p"); | |
5125 | DEFSYM (Qd, "d"); | |
5126 | ||
cf702558 CY |
5127 | DEFSYM (Qja, "ja"); |
5128 | DEFSYM (Qko, "ko"); | |
5129 | ||
42707278 JD |
5130 | DEFSYM (QCuser_spec, "user-spec"); |
5131 | ||
c2f5bfd6 KH |
5132 | staticpro (&null_vector); |
5133 | null_vector = Fmake_vector (make_number (0), Qnil); | |
5134 | ||
5135 | staticpro (&scratch_font_spec); | |
5136 | scratch_font_spec = Ffont_spec (0, NULL); | |
5137 | staticpro (&scratch_font_prefer); | |
5138 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5139 | ||
d0818984 KH |
5140 | staticpro (&Vfont_log_deferred); |
5141 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5142 | ||
6a3dadd2 | 5143 | #if 0 |
733fd013 KH |
5144 | #ifdef HAVE_LIBOTF |
5145 | staticpro (&otf_list); | |
5146 | otf_list = Qnil; | |
6a3dadd2 KH |
5147 | #endif /* HAVE_LIBOTF */ |
5148 | #endif /* 0 */ | |
733fd013 | 5149 | |
c2f5bfd6 KH |
5150 | defsubr (&Sfontp); |
5151 | defsubr (&Sfont_spec); | |
5152 | defsubr (&Sfont_get); | |
51cf11be | 5153 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5154 | defsubr (&Sfont_face_attributes); |
51cf11be | 5155 | #endif |
c2f5bfd6 KH |
5156 | defsubr (&Sfont_put); |
5157 | defsubr (&Slist_fonts); | |
35027d0c | 5158 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5159 | defsubr (&Sfind_font); |
5160 | defsubr (&Sfont_xlfd_name); | |
5161 | defsubr (&Sclear_font_cache); | |
071132a9 | 5162 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5163 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5164 | #if 0 |
733fd013 | 5165 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5166 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5167 | #endif /* 0 */ |
c2f5bfd6 KH |
5168 | |
5169 | #ifdef FONT_DEBUG | |
5170 | defsubr (&Sopen_font); | |
5171 | defsubr (&Sclose_font); | |
5172 | defsubr (&Squery_font); | |
a7840ffb | 5173 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5174 | defsubr (&Sfont_match_p); |
10d16101 | 5175 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5176 | #if 0 |
5177 | defsubr (&Sdraw_string); | |
5178 | #endif | |
5179 | #endif /* FONT_DEBUG */ | |
a266686a | 5180 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5181 | defsubr (&Sfont_info); |
a266686a | 5182 | #endif |
c2f5bfd6 | 5183 | |
819e81df KH |
5184 | DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, |
5185 | doc: /* | |
5186 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5187 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5188 | where ENCODING is a charset or a char-table, | |
5189 | and REPERTORY is a charset, a char-table, or nil. | |
5190 | ||
027a33c0 | 5191 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5192 | \(REGEXP . ENCODING). |
5193 | ||
5194 | ENCODING is for converting a character to a glyph code of the font. | |
5195 | If ENCODING is a charset, encoding a character by the charset gives | |
5196 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5197 | the table by a character gives the corresponding glyph code. | |
5198 | ||
5199 | REPERTORY specifies a repertory of characters supported by the font. | |
5200 | If REPERTORY is a charset, all characters beloging to the charset are | |
5201 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 5202 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5203 | gets the repertory information by an opened font and ENCODING. */); |
5204 | Vfont_encoding_alist = Qnil; | |
5205 | ||
933ac235 SM |
5206 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5207 | won't have any effect other than disconnect them from the style | |
5208 | table used by the font display code. So we make them read-only, | |
5209 | to avoid this confusing situation. */ | |
5210 | ||
d0ab1ebe KH |
5211 | DEFVAR_LISP_NOPRO ("font-weight-table", &Vfont_weight_table, |
5212 | doc: /* Vector of valid font weight values. | |
5213 | Each element has the form: | |
5214 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5215 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5216 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5217 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe KH |
5218 | |
5219 | DEFVAR_LISP_NOPRO ("font-slant-table", &Vfont_slant_table, | |
5220 | doc: /* Vector of font slant symbols vs the corresponding numeric values. | |
17ab8f5d | 5221 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5222 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5223 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe KH |
5224 | |
5225 | DEFVAR_LISP_NOPRO ("font-width-table", &Vfont_width_table, | |
5226 | doc: /* Alist of font width symbols vs the corresponding numeric values. | |
17ab8f5d | 5227 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5228 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5229 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5230 | |
5231 | staticpro (&font_style_table); | |
5232 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
5233 | ASET (font_style_table, 0, Vfont_weight_table); | |
5234 | ASET (font_style_table, 1, Vfont_slant_table); | |
5235 | ASET (font_style_table, 2, Vfont_width_table); | |
5236 | ||
5237 | DEFVAR_LISP ("font-log", &Vfont_log, doc: /* | |
5238 | *Logging list of font related actions and results. | |
5239 | The value t means to suppress the logging. | |
5240 | The initial value is set to nil if the environment variable | |
5241 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5242 | Vfont_log = Qnil; | |
5243 | ||
819e81df | 5244 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5245 | #ifdef HAVE_FREETYPE |
35027d0c | 5246 | syms_of_ftfont (); |
c2f5bfd6 | 5247 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5248 | syms_of_xfont (); |
5249 | syms_of_ftxfont (); | |
c2f5bfd6 | 5250 | #ifdef HAVE_XFT |
35027d0c | 5251 | syms_of_xftfont (); |
c2f5bfd6 KH |
5252 | #endif /* HAVE_XFT */ |
5253 | #endif /* HAVE_X_WINDOWS */ | |
5254 | #else /* not HAVE_FREETYPE */ | |
5255 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5256 | syms_of_xfont (); |
c2f5bfd6 KH |
5257 | #endif /* HAVE_X_WINDOWS */ |
5258 | #endif /* not HAVE_FREETYPE */ | |
5259 | #ifdef HAVE_BDFFONT | |
35027d0c | 5260 | syms_of_bdffont (); |
c2f5bfd6 KH |
5261 | #endif /* HAVE_BDFFONT */ |
5262 | #ifdef WINDOWSNT | |
35027d0c | 5263 | syms_of_w32font (); |
c2f5bfd6 | 5264 | #endif /* WINDOWSNT */ |
edfda783 AR |
5265 | #ifdef HAVE_NS |
5266 | syms_of_nsfont (); | |
5267 | #endif /* HAVE_NS */ | |
819e81df | 5268 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5269 | } |
885b7d09 | 5270 | |
652b9560 | 5271 | void |
971de7fb | 5272 | init_font (void) |
652b9560 KH |
5273 | { |
5274 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5275 | } | |
5276 |