Commit | Line | Data |
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c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
e9bffc61 | 2 | |
95df8112 GM |
3 | Copyright (C) 2006-2011 Free Software Foundation, Inc. |
4 | Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 | |
5 | National Institute of Advanced Industrial Science and Technology (AIST) | |
6 | Registration Number H13PRO009 | |
c2f5bfd6 KH |
7 | |
8 | This file is part of GNU Emacs. | |
9 | ||
9ec0b715 | 10 | GNU Emacs is free software: you can redistribute it and/or modify |
c2f5bfd6 | 11 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. | |
c2f5bfd6 KH |
14 | |
15 | GNU Emacs is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 21 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c2f5bfd6 KH |
22 | |
23 | #include <config.h> | |
24 | #include <stdio.h> | |
c2f5bfd6 | 25 | #include <ctype.h> |
d7306fe6 | 26 | #include <setjmp.h> |
c2f5bfd6 KH |
27 | |
28 | #include "lisp.h" | |
29 | #include "buffer.h" | |
30 | #include "frame.h" | |
10d16101 | 31 | #include "window.h" |
c2f5bfd6 KH |
32 | #include "dispextern.h" |
33 | #include "charset.h" | |
34 | #include "character.h" | |
35 | #include "composite.h" | |
36 | #include "fontset.h" | |
37 | #include "font.h" | |
38 | ||
43c0454d KH |
39 | #ifdef HAVE_X_WINDOWS |
40 | #include "xterm.h" | |
41 | #endif /* HAVE_X_WINDOWS */ | |
42 | ||
43 | #ifdef HAVE_NTGUI | |
44 | #include "w32term.h" | |
45 | #endif /* HAVE_NTGUI */ | |
46 | ||
edfda783 AR |
47 | #ifdef HAVE_NS |
48 | #include "nsterm.h" | |
49 | #endif /* HAVE_NS */ | |
50 | ||
7990b61a | 51 | Lisp_Object Qopentype; |
e0708580 | 52 | |
35027d0c | 53 | /* Important character set strings. */ |
9e1bb909 | 54 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 55 | |
edfda783 | 56 | #define DEFAULT_ENCODING Qiso8859_1 |
edfda783 | 57 | |
071132a9 KH |
58 | /* Unicode category `Cf'. */ |
59 | static Lisp_Object QCf; | |
60 | ||
c2f5bfd6 KH |
61 | /* Special vector of zero length. This is repeatedly used by (struct |
62 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 63 | static Lisp_Object null_vector; |
c2f5bfd6 | 64 | |
d0ab1ebe | 65 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ |
c2f5bfd6 KH |
66 | static Lisp_Object font_style_table; |
67 | ||
d0ab1ebe KH |
68 | /* Structure used for tables mapping weight, slant, and width numeric |
69 | values and their names. */ | |
70 | ||
71 | struct table_entry | |
72 | { | |
73 | int numeric; | |
74 | /* The first one is a valid name as a face attribute. | |
75 | The second one (if any) is a typical name in XLFD field. */ | |
5e2327cf | 76 | const char *names[5]; |
d0ab1ebe KH |
77 | }; |
78 | ||
79 | /* Table of weight numeric values and their names. This table must be | |
80 | sorted by numeric values in ascending order. */ | |
81 | ||
5e2327cf | 82 | static const struct table_entry weight_table[] = |
d0ab1ebe KH |
83 | { |
84 | { 0, { "thin" }}, | |
85 | { 20, { "ultra-light", "ultralight" }}, | |
86 | { 40, { "extra-light", "extralight" }}, | |
87 | { 50, { "light" }}, | |
88 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
c2694a06 | 89 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
90 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, |
91 | { 200, { "bold" }}, | |
92 | { 205, { "extra-bold", "extrabold" }}, | |
93 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
94 | }; | |
95 | ||
96 | /* Table of slant numeric values and their names. This table must be | |
97 | sorted by numeric values in ascending order. */ | |
98 | ||
5e2327cf | 99 | static const struct table_entry slant_table[] = |
d0ab1ebe KH |
100 | { |
101 | { 0, { "reverse-oblique", "ro" }}, | |
102 | { 10, { "reverse-italic", "ri" }}, | |
c2694a06 | 103 | { 100, { "normal", "r", "unspecified" }}, |
d0ab1ebe KH |
104 | { 200, { "italic" ,"i", "ot" }}, |
105 | { 210, { "oblique", "o" }} | |
106 | }; | |
107 | ||
108 | /* Table of width numeric values and their names. This table must be | |
109 | sorted by numeric values in ascending order. */ | |
110 | ||
5e2327cf | 111 | static const struct table_entry width_table[] = |
d0ab1ebe KH |
112 | { |
113 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
114 | { 63, { "extra-condensed", "extracondensed" }}, | |
115 | { 75, { "condensed", "compressed", "narrow" }}, | |
116 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
c2694a06 | 117 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
118 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, |
119 | { 125, { "expanded" }}, | |
120 | { 150, { "extra-expanded", "extraexpanded" }}, | |
121 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
122 | }; | |
123 | ||
2f7c71a1 AS |
124 | Lisp_Object QCfoundry; |
125 | static Lisp_Object QCadstyle, QCregistry; | |
c2f5bfd6 | 126 | /* Symbols representing keys of font extra info. */ |
35027d0c | 127 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
955cbe7b PE |
128 | Lisp_Object QCantialias, QCfont_entity; |
129 | static Lisp_Object QCfc_unknown_spec; | |
ec6fe57c | 130 | /* Symbols representing values of font spacing property. */ |
955cbe7b PE |
131 | static Lisp_Object Qc, Qm, Qd; |
132 | Lisp_Object Qp; | |
cf702558 CY |
133 | /* Special ADSTYLE properties to avoid fonts used for Latin |
134 | characters; used in xfont.c and ftfont.c. */ | |
135 | Lisp_Object Qja, Qko; | |
c2f5bfd6 | 136 | |
955cbe7b | 137 | static Lisp_Object QCuser_spec; |
42707278 | 138 | |
1701724c KH |
139 | /* Alist of font registry symbol and the corresponding charsets |
140 | information. The information is retrieved from | |
141 | Vfont_encoding_alist on demand. | |
142 | ||
143 | Eash element has the form: | |
144 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
145 | or | |
146 | (REGISTRY . nil) | |
147 | ||
148 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
149 | encodes a character code to a glyph code of a font, and | |
150 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
151 | character is supported by a font. | |
152 | ||
153 | The latter form means that the information for REGISTRY couldn't be | |
154 | retrieved. */ | |
155 | static Lisp_Object font_charset_alist; | |
156 | ||
f697fff0 KH |
157 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
158 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
159 | here. */ |
160 | static struct font_driver_list *font_driver_list; | |
161 | ||
35027d0c KH |
162 | \f |
163 | ||
164 | /* Creaters of font-related Lisp object. */ | |
165 | ||
2f7c71a1 | 166 | static Lisp_Object |
971de7fb | 167 | font_make_spec (void) |
35027d0c KH |
168 | { |
169 | Lisp_Object font_spec; | |
170 | struct font_spec *spec | |
171 | = ((struct font_spec *) | |
172 | allocate_pseudovector (VECSIZE (struct font_spec), | |
173 | FONT_SPEC_MAX, PVEC_FONT)); | |
174 | XSETFONT (font_spec, spec); | |
175 | return font_spec; | |
176 | } | |
177 | ||
178 | Lisp_Object | |
971de7fb | 179 | font_make_entity (void) |
35027d0c KH |
180 | { |
181 | Lisp_Object font_entity; | |
182 | struct font_entity *entity | |
183 | = ((struct font_entity *) | |
184 | allocate_pseudovector (VECSIZE (struct font_entity), | |
185 | FONT_ENTITY_MAX, PVEC_FONT)); | |
186 | XSETFONT (font_entity, entity); | |
187 | return font_entity; | |
188 | } | |
189 | ||
51c13510 KH |
190 | /* Create a font-object whose structure size is SIZE. If ENTITY is |
191 | not nil, copy properties from ENTITY to the font-object. If | |
192 | PIXELSIZE is positive, set the `size' property to PIXELSIZE. */ | |
35027d0c | 193 | Lisp_Object |
971de7fb | 194 | font_make_object (int size, Lisp_Object entity, int pixelsize) |
35027d0c KH |
195 | { |
196 | Lisp_Object font_object; | |
197 | struct font *font | |
198 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
51c13510 KH |
199 | int i; |
200 | ||
35027d0c KH |
201 | XSETFONT (font_object, font); |
202 | ||
51c13510 KH |
203 | if (! NILP (entity)) |
204 | { | |
205 | for (i = 1; i < FONT_SPEC_MAX; i++) | |
206 | font->props[i] = AREF (entity, i); | |
207 | if (! NILP (AREF (entity, FONT_EXTRA_INDEX))) | |
208 | font->props[FONT_EXTRA_INDEX] | |
581e51e8 | 209 | = Fcopy_alist (AREF (entity, FONT_EXTRA_INDEX)); |
51c13510 KH |
210 | } |
211 | if (size > 0) | |
212 | font->props[FONT_SIZE_INDEX] = make_number (pixelsize); | |
35027d0c KH |
213 | return font_object; |
214 | } | |
215 | ||
216 | \f | |
217 | ||
f57e2426 J |
218 | static int font_pixel_size (FRAME_PTR f, Lisp_Object); |
219 | static Lisp_Object font_open_entity (FRAME_PTR, Lisp_Object, int); | |
220 | static Lisp_Object font_matching_entity (FRAME_PTR, Lisp_Object *, | |
221 | Lisp_Object); | |
2f7c71a1 | 222 | static unsigned font_encode_char (Lisp_Object, int); |
c2f5bfd6 KH |
223 | |
224 | /* Number of registered font drivers. */ | |
225 | static int num_font_drivers; | |
226 | ||
35027d0c KH |
227 | |
228 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
229 | If STR is "*", it returns nil. | |
2f286d4f KH |
230 | If FORCE_SYMBOL is zero and all characters in STR are digits, it |
231 | returns an integer. Otherwise, it returns a symbol interned from | |
232 | STR. */ | |
35027d0c KH |
233 | |
234 | Lisp_Object | |
675e2c69 | 235 | font_intern_prop (const char *str, int len, int force_symbol) |
35027d0c KH |
236 | { |
237 | int i; | |
d0ab1ebe | 238 | Lisp_Object tem; |
35027d0c | 239 | Lisp_Object obarray; |
14162469 | 240 | EMACS_INT nbytes, nchars; |
35027d0c KH |
241 | |
242 | if (len == 1 && *str == '*') | |
243 | return Qnil; | |
2f286d4f | 244 | if (!force_symbol && len >=1 && isdigit (*str)) |
35027d0c KH |
245 | { |
246 | for (i = 1; i < len; i++) | |
247 | if (! isdigit (str[i])) | |
248 | break; | |
249 | if (i == len) | |
250 | return make_number (atoi (str)); | |
251 | } | |
252 | ||
545312c2 KH |
253 | /* The following code is copied from the function intern (in |
254 | lread.c), and modified to suite our purpose. */ | |
35027d0c | 255 | obarray = Vobarray; |
eab3844f | 256 | if (!VECTORP (obarray) || XVECTOR_SIZE (obarray) == 0) |
35027d0c | 257 | obarray = check_obarray (obarray); |
72d36834 | 258 | parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes); |
545312c2 KH |
259 | if (len == nchars || len != nbytes) |
260 | /* CONTENTS contains no multibyte sequences or contains an invalid | |
261 | multibyte sequence. We'll make a unibyte string. */ | |
262 | tem = oblookup (obarray, str, len, len); | |
263 | else | |
264 | tem = oblookup (obarray, str, nchars, len); | |
35027d0c KH |
265 | if (SYMBOLP (tem)) |
266 | return tem; | |
545312c2 KH |
267 | if (len == nchars || len != nbytes) |
268 | tem = make_unibyte_string (str, len); | |
269 | else | |
270 | tem = make_multibyte_string (str, nchars, len); | |
271 | return Fintern (tem, obarray); | |
35027d0c KH |
272 | } |
273 | ||
9331887d | 274 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 275 | |
9331887d | 276 | static int |
971de7fb | 277 | font_pixel_size (FRAME_PTR f, Lisp_Object spec) |
9331887d | 278 | { |
819e81df | 279 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
280 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
281 | double point_size; | |
35027d0c | 282 | int dpi, pixel_size; |
d0ab1ebe | 283 | Lisp_Object val; |
51c01100 | 284 | |
9331887d KH |
285 | if (INTEGERP (size)) |
286 | return XINT (size); | |
287 | if (NILP (size)) | |
819e81df | 288 | return 0; |
d0ab1ebe | 289 | font_assert (FLOATP (size)); |
9331887d | 290 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
291 | val = AREF (spec, FONT_DPI_INDEX); |
292 | if (INTEGERP (val)) | |
17e28f6d | 293 | dpi = XINT (val); |
9331887d KH |
294 | else |
295 | dpi = f->resy; | |
296 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
297 | return pixel_size; | |
819e81df KH |
298 | #else |
299 | return 1; | |
300 | #endif | |
9331887d KH |
301 | } |
302 | ||
c2f5bfd6 | 303 | |
35027d0c KH |
304 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
305 | font vector. If VAL is not valid (i.e. not registered in | |
306 | font_style_table), return -1 if NOERROR is zero, and return a | |
307 | proper index if NOERROR is nonzero. In that case, register VAL in | |
308 | font_style_table if VAL is a symbol, and return a closest index if | |
309 | VAL is an integer. */ | |
c2f5bfd6 | 310 | |
35027d0c | 311 | int |
971de7fb | 312 | font_style_to_value (enum font_property_index prop, Lisp_Object val, int noerror) |
c2f5bfd6 | 313 | { |
35027d0c KH |
314 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
315 | int len = ASIZE (table); | |
c2f5bfd6 | 316 | |
35027d0c | 317 | if (SYMBOLP (val)) |
c2f5bfd6 | 318 | { |
13a547c6 | 319 | int i, j; |
25a48bd0 | 320 | char *s; |
35027d0c KH |
321 | Lisp_Object args[2], elt; |
322 | ||
323 | /* At first try exact match. */ | |
324 | for (i = 0; i < len; i++) | |
d0ab1ebe KH |
325 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
326 | if (EQ (val, AREF (AREF (table, i), j))) | |
327 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
328 | | (i << 4) | (j - 1)); | |
35027d0c | 329 | /* Try also with case-folding match. */ |
25a48bd0 | 330 | s = SSDATA (SYMBOL_NAME (val)); |
35027d0c | 331 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
332 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
333 | { | |
334 | elt = AREF (AREF (table, i), j); | |
25a48bd0 | 335 | if (xstrcasecmp (s, SSDATA (SYMBOL_NAME (elt))) == 0) |
d0ab1ebe KH |
336 | return ((XINT (AREF (AREF (table, i), 0)) << 8) |
337 | | (i << 4) | (j - 1)); | |
338 | } | |
35027d0c KH |
339 | if (! noerror) |
340 | return -1; | |
341 | if (len == 255) | |
342 | abort (); | |
c2694a06 | 343 | elt = Fmake_vector (make_number (2), make_number (100)); |
d0ab1ebe | 344 | ASET (elt, 1, val); |
35027d0c | 345 | args[0] = table; |
d0ab1ebe | 346 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 347 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
c2694a06 | 348 | return (100 << 8) | (i << 4); |
c2f5bfd6 | 349 | } |
35027d0c KH |
350 | else |
351 | { | |
d0ab1ebe | 352 | int i, last_n; |
35027d0c | 353 | int numeric = XINT (val); |
c2f5bfd6 | 354 | |
d0ab1ebe | 355 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 356 | { |
d0ab1ebe | 357 | int n = XINT (AREF (AREF (table, i), 0)); |
c2f5bfd6 | 358 | |
35027d0c | 359 | if (numeric == n) |
d0ab1ebe | 360 | return (n << 8) | (i << 4); |
35027d0c KH |
361 | if (numeric < n) |
362 | { | |
363 | if (! noerror) | |
364 | return -1; | |
d0ab1ebe KH |
365 | return ((i == 0 || n - numeric < numeric - last_n) |
366 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 367 | } |
35027d0c | 368 | last_n = n; |
35027d0c KH |
369 | } |
370 | if (! noerror) | |
371 | return -1; | |
d0ab1ebe | 372 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
373 | } |
374 | } | |
c2f5bfd6 KH |
375 | |
376 | Lisp_Object | |
971de7fb | 377 | font_style_symbolic (Lisp_Object font, enum font_property_index prop, int for_face) |
c2f5bfd6 | 378 | { |
3ef8c1b4 | 379 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
380 | Lisp_Object table, elt; |
381 | int i; | |
c2f5bfd6 | 382 | |
35027d0c KH |
383 | if (NILP (val)) |
384 | return Qnil; | |
385 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
d0ab1ebe KH |
386 | i = XINT (val) & 0xFF; |
387 | font_assert (((i >> 4) & 0xF) < ASIZE (table)); | |
388 | elt = AREF (table, ((i >> 4) & 0xF)); | |
389 | font_assert ((i & 0xF) + 1 < ASIZE (elt)); | |
ba3de0e8 | 390 | return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
6fe9826d JR |
391 | } |
392 | ||
819e81df KH |
393 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
394 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
395 | of the font. REPERTORY is a charset symbol or nil. */ | |
396 | ||
397 | Lisp_Object | |
971de7fb | 398 | find_font_encoding (Lisp_Object fontname) |
819e81df KH |
399 | { |
400 | Lisp_Object tail, elt; | |
401 | ||
402 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
403 | { | |
404 | elt = XCAR (tail); | |
405 | if (CONSP (elt) | |
406 | && STRINGP (XCAR (elt)) | |
407 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
408 | && (SYMBOLP (XCDR (elt)) | |
409 | ? CHARSETP (XCDR (elt)) | |
410 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
411 | return (XCDR (elt)); | |
412 | } | |
182ba28c | 413 | return Qnil; |
819e81df KH |
414 | } |
415 | ||
1701724c KH |
416 | /* Return encoding charset and repertory charset for REGISTRY in |
417 | ENCODING and REPERTORY correspondingly. If correct information for | |
418 | REGISTRY is available, return 0. Otherwise return -1. */ | |
419 | ||
420 | int | |
971de7fb | 421 | font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory) |
1701724c KH |
422 | { |
423 | Lisp_Object val; | |
424 | int encoding_id, repertory_id; | |
425 | ||
35027d0c | 426 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
427 | if (! NILP (val)) |
428 | { | |
429 | val = XCDR (val); | |
430 | if (NILP (val)) | |
431 | return -1; | |
432 | encoding_id = XINT (XCAR (val)); | |
433 | repertory_id = XINT (XCDR (val)); | |
434 | } | |
435 | else | |
436 | { | |
437 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
438 | if (SYMBOLP (val) && CHARSETP (val)) | |
439 | { | |
440 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
441 | } | |
442 | else if (CONSP (val)) | |
443 | { | |
444 | if (! CHARSETP (XCAR (val))) | |
445 | goto invalid_entry; | |
446 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
447 | if (NILP (XCDR (val))) | |
448 | repertory_id = -1; | |
449 | else | |
450 | { | |
451 | if (! CHARSETP (XCDR (val))) | |
452 | goto invalid_entry; | |
453 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
454 | } | |
51c01100 | 455 | } |
1701724c KH |
456 | else |
457 | goto invalid_entry; | |
458 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
459 | font_charset_alist | |
460 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
461 | } | |
462 | ||
463 | if (encoding) | |
464 | *encoding = CHARSET_FROM_ID (encoding_id); | |
465 | if (repertory) | |
466 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
467 | return 0; | |
468 | ||
469 | invalid_entry: | |
470 | font_charset_alist | |
471 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
472 | return -1; | |
473 | } | |
474 | ||
c2f5bfd6 | 475 | \f |
45eb10fb KH |
476 | /* Font property value validaters. See the comment of |
477 | font_property_table for the meaning of the arguments. */ | |
478 | ||
f57e2426 J |
479 | static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object); |
480 | static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object); | |
481 | static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object); | |
482 | static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object); | |
483 | static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object); | |
484 | static int get_font_prop_index (Lisp_Object); | |
c2f5bfd6 KH |
485 | |
486 | static Lisp_Object | |
971de7fb | 487 | font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
488 | { |
489 | if (STRINGP (val)) | |
35027d0c KH |
490 | val = Fintern (val, Qnil); |
491 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 492 | val = Qerror; |
35027d0c KH |
493 | else if (EQ (prop, QCregistry)) |
494 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
495 | return val; |
496 | } | |
497 | ||
35027d0c | 498 | |
c2f5bfd6 | 499 | static Lisp_Object |
971de7fb | 500 | font_prop_validate_style (Lisp_Object style, Lisp_Object val) |
c2f5bfd6 | 501 | { |
35027d0c KH |
502 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
503 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
504 | : FONT_WIDTH_INDEX); | |
35027d0c | 505 | if (INTEGERP (val)) |
c2f5bfd6 | 506 | { |
13a547c6 | 507 | int n = XINT (val); |
64b900e3 | 508 | if (((n >> 4) & 0xF) |
35027d0c | 509 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
510 | val = Qerror; |
511 | else | |
512 | { | |
64b900e3 KH |
513 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
514 | ||
515 | if ((n & 0xF) + 1 >= ASIZE (elt)) | |
516 | val = Qerror; | |
517 | else if (XINT (AREF (elt, 0)) != (n >> 8)) | |
c2f5bfd6 KH |
518 | val = Qerror; |
519 | } | |
520 | } | |
35027d0c KH |
521 | else if (SYMBOLP (val)) |
522 | { | |
523 | int n = font_style_to_value (prop, val, 0); | |
524 | ||
525 | val = n >= 0 ? make_number (n) : Qerror; | |
526 | } | |
527 | else | |
528 | val = Qerror; | |
c2f5bfd6 KH |
529 | return val; |
530 | } | |
531 | ||
532 | static Lisp_Object | |
971de7fb | 533 | font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
534 | { |
535 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
536 | ? val : Qerror); | |
537 | } | |
538 | ||
539 | static Lisp_Object | |
971de7fb | 540 | font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val) |
ec6fe57c KH |
541 | { |
542 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
543 | return val; | |
3692570f KH |
544 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
545 | { | |
546 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
547 | ||
548 | if (spacing == 'c' || spacing == 'C') | |
549 | return make_number (FONT_SPACING_CHARCELL); | |
550 | if (spacing == 'm' || spacing == 'M') | |
551 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 552 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
553 | return make_number (FONT_SPACING_PROPORTIONAL); |
554 | if (spacing == 'd' || spacing == 'D') | |
555 | return make_number (FONT_SPACING_DUAL); | |
556 | } | |
ec6fe57c KH |
557 | return Qerror; |
558 | } | |
559 | ||
1701724c | 560 | static Lisp_Object |
971de7fb | 561 | font_prop_validate_otf (Lisp_Object prop, Lisp_Object val) |
1701724c KH |
562 | { |
563 | Lisp_Object tail, tmp; | |
564 | int i; | |
565 | ||
566 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
567 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
568 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
569 | if (! CONSP (val)) | |
570 | return Qerror; | |
571 | if (! SYMBOLP (XCAR (val))) | |
572 | return Qerror; | |
573 | tail = XCDR (val); | |
574 | if (NILP (tail)) | |
575 | return val; | |
576 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
577 | return Qerror; | |
578 | for (i = 0; i < 2; i++) | |
579 | { | |
580 | tail = XCDR (tail); | |
581 | if (NILP (tail)) | |
582 | return val; | |
583 | if (! CONSP (tail)) | |
584 | return Qerror; | |
585 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
586 | if (! SYMBOLP (XCAR (tmp))) | |
587 | return Qerror; | |
588 | if (! NILP (tmp)) | |
589 | return Qerror; | |
590 | } | |
591 | return val; | |
592 | } | |
593 | ||
ec6fe57c KH |
594 | /* Structure of known font property keys and validater of the |
595 | values. */ | |
04bab72c | 596 | static const struct |
c2f5bfd6 | 597 | { |
ec6fe57c | 598 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 599 | Lisp_Object *key; |
45eb10fb KH |
600 | /* Function to validate PROP's value VAL, or NULL if any value is |
601 | ok. The value is VAL or its regularized value if VAL is valid, | |
602 | and Qerror if not. */ | |
f57e2426 | 603 | Lisp_Object (*validater) (Lisp_Object prop, Lisp_Object val); |
ec6fe57c KH |
604 | } font_property_table[] = |
605 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
606 | { &QCfoundry, font_prop_validate_symbol }, |
607 | { &QCfamily, font_prop_validate_symbol }, | |
608 | { &QCadstyle, font_prop_validate_symbol }, | |
609 | { &QCregistry, font_prop_validate_symbol }, | |
610 | { &QCweight, font_prop_validate_style }, | |
611 | { &QCslant, font_prop_validate_style }, | |
612 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 613 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
614 | { &QCdpi, font_prop_validate_non_neg }, |
615 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
616 | { &QCavgwidth, font_prop_validate_non_neg }, |
617 | /* The order of the above entries must match with enum | |
618 | font_property_index. */ | |
619 | { &QClang, font_prop_validate_symbol }, | |
620 | { &QCscript, font_prop_validate_symbol }, | |
621 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
622 | }; |
623 | ||
45eb10fb | 624 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
625 | #define FONT_PROPERTY_TABLE_SIZE \ |
626 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
627 | ||
45eb10fb | 628 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 629 | already known property. */ |
45eb10fb | 630 | |
ec6fe57c | 631 | static int |
971de7fb | 632 | get_font_prop_index (Lisp_Object key) |
c2f5bfd6 | 633 | { |
35027d0c KH |
634 | int i; |
635 | ||
636 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
637 | if (EQ (key, *font_property_table[i].key)) | |
638 | return i; | |
ec6fe57c | 639 | return -1; |
c2f5bfd6 KH |
640 | } |
641 | ||
35027d0c KH |
642 | /* Validate the font property. The property key is specified by the |
643 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
644 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 645 | |
c2f5bfd6 | 646 | static Lisp_Object |
971de7fb | 647 | font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 648 | { |
35027d0c | 649 | Lisp_Object validated; |
c2f5bfd6 | 650 | |
1f09f444 KH |
651 | if (NILP (val)) |
652 | return val; | |
35027d0c KH |
653 | if (NILP (prop)) |
654 | prop = *font_property_table[idx].key; | |
655 | else | |
ec6fe57c | 656 | { |
35027d0c KH |
657 | idx = get_font_prop_index (prop); |
658 | if (idx < 0) | |
659 | return val; | |
ec6fe57c | 660 | } |
35027d0c KH |
661 | validated = (font_property_table[idx].validater) (prop, val); |
662 | if (EQ (validated, Qerror)) | |
663 | signal_error ("invalid font property", Fcons (prop, val)); | |
664 | return validated; | |
c2f5bfd6 | 665 | } |
51c01100 | 666 | |
35027d0c KH |
667 | |
668 | /* Store VAL as a value of extra font property PROP in FONT while | |
669 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 670 | |
01dbeb0b | 671 | Lisp_Object |
971de7fb | 672 | font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
9331887d KH |
673 | { |
674 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 675 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
676 | |
677 | if (NILP (slot)) | |
678 | { | |
35027d0c KH |
679 | Lisp_Object prev = Qnil; |
680 | ||
681 | while (CONSP (extra) | |
682 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
683 | prev = extra, extra = XCDR (extra); | |
581e51e8 | 684 | |
ce75f06e | 685 | if (NILP (prev)) |
581e51e8 | 686 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 687 | else |
581e51e8 | 688 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 689 | |
ec6fe57c | 690 | return val; |
9331887d | 691 | } |
9331887d | 692 | XSETCDR (slot, val); |
483670b5 KH |
693 | if (NILP (val)) |
694 | ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra)); | |
ec6fe57c | 695 | return val; |
9331887d KH |
696 | } |
697 | ||
c2f5bfd6 KH |
698 | \f |
699 | /* Font name parser and unparser */ | |
700 | ||
8ea90aa3 | 701 | static int parse_matrix (const char *); |
f57e2426 | 702 | static int font_expand_wildcards (Lisp_Object *, int); |
09d93395 | 703 | static int font_parse_name (char *, Lisp_Object); |
c2f5bfd6 | 704 | |
ec6fe57c | 705 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
706 | enum xlfd_field_index |
707 | { | |
708 | XLFD_FOUNDRY_INDEX, | |
709 | XLFD_FAMILY_INDEX, | |
710 | XLFD_WEIGHT_INDEX, | |
711 | XLFD_SLANT_INDEX, | |
712 | XLFD_SWIDTH_INDEX, | |
713 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
714 | XLFD_PIXEL_INDEX, |
715 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
716 | XLFD_RESX_INDEX, |
717 | XLFD_RESY_INDEX, | |
718 | XLFD_SPACING_INDEX, | |
719 | XLFD_AVGWIDTH_INDEX, | |
720 | XLFD_REGISTRY_INDEX, | |
721 | XLFD_ENCODING_INDEX, | |
722 | XLFD_LAST_INDEX | |
723 | }; | |
724 | ||
ec6fe57c | 725 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
726 | enum xlfd_field_mask |
727 | { | |
728 | XLFD_FOUNDRY_MASK = 0x0001, | |
729 | XLFD_FAMILY_MASK = 0x0002, | |
730 | XLFD_WEIGHT_MASK = 0x0004, | |
731 | XLFD_SLANT_MASK = 0x0008, | |
732 | XLFD_SWIDTH_MASK = 0x0010, | |
733 | XLFD_ADSTYLE_MASK = 0x0020, | |
734 | XLFD_PIXEL_MASK = 0x0040, | |
735 | XLFD_POINT_MASK = 0x0080, | |
736 | XLFD_RESX_MASK = 0x0100, | |
737 | XLFD_RESY_MASK = 0x0200, | |
738 | XLFD_SPACING_MASK = 0x0400, | |
739 | XLFD_AVGWIDTH_MASK = 0x0800, | |
740 | XLFD_REGISTRY_MASK = 0x1000, | |
741 | XLFD_ENCODING_MASK = 0x2000 | |
742 | }; | |
743 | ||
744 | ||
c2f5bfd6 KH |
745 | /* Parse P pointing the pixel/point size field of the form |
746 | `[A B C D]' which specifies a transformation matrix: | |
747 | ||
748 | A B 0 | |
749 | C D 0 | |
750 | 0 0 1 | |
751 | ||
752 | by which all glyphs of the font are transformed. The spec says | |
753 | that scalar value N for the pixel/point size is equivalent to: | |
754 | A = N * resx/resy, B = C = 0, D = N. | |
755 | ||
756 | Return the scalar value N if the form is valid. Otherwise return | |
757 | -1. */ | |
758 | ||
759 | static int | |
8ea90aa3 | 760 | parse_matrix (const char *p) |
c2f5bfd6 KH |
761 | { |
762 | double matrix[4]; | |
763 | char *end; | |
764 | int i; | |
765 | ||
766 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
767 | { | |
768 | if (*p == '~') | |
769 | matrix[i] = - strtod (p + 1, &end); | |
770 | else | |
771 | matrix[i] = strtod (p, &end); | |
772 | p = end; | |
773 | } | |
774 | return (i == 4 ? (int) matrix[3] : -1); | |
775 | } | |
776 | ||
4485a28e KH |
777 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
778 | multiple fields to fill in all 14 XLFD fields while restring a | |
779 | field position by its contents. */ | |
780 | ||
ec6fe57c | 781 | static int |
971de7fb | 782 | font_expand_wildcards (Lisp_Object *field, int n) |
4485a28e KH |
783 | { |
784 | /* Copy of FIELD. */ | |
785 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
786 | /* Array of information about where this element can go. Nth | |
787 | element is for Nth element of FIELD. */ | |
788 | struct { | |
789 | /* Minimum possible field. */ | |
790 | int from; | |
791 | /* Maxinum possible field. */ | |
792 | int to; | |
793 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
794 | int mask; | |
795 | } range[XLFD_LAST_INDEX]; | |
796 | int i, j; | |
ec6fe57c | 797 | int range_from, range_to; |
4485a28e KH |
798 | unsigned range_mask; |
799 | ||
800 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
801 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
802 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 803 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 804 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
805 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
806 | ||
807 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
808 | field. The value is shifted to left one bit by one in the | |
809 | following loop. */ | |
810 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
811 | range_mask = (range_mask << 1) | 1; | |
812 | ||
ec6fe57c KH |
813 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
814 | position-based retriction for FIELD[I]. */ | |
815 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
816 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 817 | { |
4485a28e KH |
818 | Lisp_Object val = field[i]; |
819 | ||
820 | tmp[i] = val; | |
821 | if (NILP (val)) | |
822 | { | |
823 | /* Wildcard. */ | |
824 | range[i].from = range_from; | |
825 | range[i].to = range_to; | |
826 | range[i].mask = range_mask; | |
827 | } | |
828 | else | |
829 | { | |
830 | /* The triplet FROM, TO, and MASK is a value-based | |
831 | retriction for FIELD[I]. */ | |
832 | int from, to; | |
833 | unsigned mask; | |
834 | ||
835 | if (INTEGERP (val)) | |
836 | { | |
837 | int numeric = XINT (val); | |
838 | ||
ef18374f KH |
839 | if (i + 1 == n) |
840 | from = to = XLFD_ENCODING_INDEX, | |
841 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
842 | else if (numeric == 0) |
843 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
844 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
845 | else if (numeric <= 48) |
846 | from = to = XLFD_PIXEL_INDEX, | |
847 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 848 | else |
ec6fe57c | 849 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
850 | mask = XLFD_LARGENUM_MASK; |
851 | } | |
35027d0c | 852 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
853 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
854 | mask = XLFD_NULL_MASK; | |
855 | else if (i == 0) | |
856 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
857 | else if (i + 1 == n) | |
858 | { | |
859 | Lisp_Object name = SYMBOL_NAME (val); | |
860 | ||
861 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
862 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
863 | mask = XLFD_REGENC_MASK; | |
864 | else | |
865 | from = to = XLFD_ENCODING_INDEX, | |
866 | mask = XLFD_ENCODING_MASK; | |
867 | } | |
ef18374f KH |
868 | else if (range_from <= XLFD_WEIGHT_INDEX |
869 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 870 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 871 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
872 | else if (range_from <= XLFD_SLANT_INDEX |
873 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 874 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 875 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
876 | else if (range_from <= XLFD_SWIDTH_INDEX |
877 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 878 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
879 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
880 | else | |
881 | { | |
ec6fe57c | 882 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
883 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
884 | else | |
885 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
886 | mask = XLFD_SYMBOL_MASK; | |
887 | } | |
888 | ||
889 | /* Merge position-based and value-based restrictions. */ | |
890 | mask &= range_mask; | |
891 | while (from < range_from) | |
892 | mask &= ~(1 << from++); | |
893 | while (from < 14 && ! (mask & (1 << from))) | |
894 | from++; | |
895 | while (to > range_to) | |
896 | mask &= ~(1 << to--); | |
897 | while (to >= 0 && ! (mask & (1 << to))) | |
898 | to--; | |
899 | if (from > to) | |
900 | return -1; | |
901 | range[i].from = from; | |
902 | range[i].to = to; | |
903 | range[i].mask = mask; | |
904 | ||
905 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
906 | { |
907 | /* The range is narrowed by value-based restrictions. | |
908 | Reflect it to the other fields. */ | |
909 | ||
910 | /* Following fields should be after FROM. */ | |
911 | range_from = from; | |
912 | /* Preceding fields should be before TO. */ | |
913 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
914 | { | |
915 | /* Check FROM for non-wildcard field. */ | |
916 | if (! NILP (tmp[j]) && range[j].from < from) | |
917 | { | |
918 | while (range[j].from < from) | |
919 | range[j].mask &= ~(1 << range[j].from++); | |
920 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
921 | from++; | |
922 | range[j].from = from; | |
923 | } | |
924 | else | |
925 | from = range[j].from; | |
926 | if (range[j].to > to) | |
927 | { | |
928 | while (range[j].to > to) | |
929 | range[j].mask &= ~(1 << range[j].to--); | |
930 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
931 | to--; | |
932 | range[j].to = to; | |
933 | } | |
934 | else | |
935 | to = range[j].to; | |
936 | if (from > to) | |
937 | return -1; | |
938 | } | |
939 | } | |
4485a28e KH |
940 | } |
941 | } | |
942 | ||
943 | /* Decide all fileds from restrictions in RANGE. */ | |
944 | for (i = j = 0; i < n ; i++) | |
945 | { | |
946 | if (j < range[i].from) | |
947 | { | |
948 | if (i == 0 || ! NILP (tmp[i - 1])) | |
949 | /* None of TMP[X] corresponds to Jth field. */ | |
950 | return -1; | |
951 | for (; j < range[i].from; j++) | |
952 | field[j] = Qnil; | |
953 | } | |
954 | field[j++] = tmp[i]; | |
955 | } | |
956 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
957 | return -1; | |
958 | for (; j < XLFD_LAST_INDEX; j++) | |
959 | field[j] = Qnil; | |
960 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
961 | field[XLFD_ENCODING_INDEX] | |
962 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
963 | return 0; | |
964 | } | |
965 | ||
43a1d19b | 966 | |
ef18374f | 967 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
968 | (font-spec or font-entity). Size property of FONT is set as |
969 | follows: | |
970 | specified XLFD fields FONT property | |
971 | --------------------- ------------- | |
972 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
973 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
974 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
975 | ||
ec6fe57c | 976 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 977 | |
ec6fe57c KH |
978 | FONT is usually a font-spec, but when this function is called from |
979 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 980 | a fully specified XLFD. */ |
c2f5bfd6 KH |
981 | |
982 | int | |
09d93395 | 983 | font_parse_xlfd (char *name, Lisp_Object font) |
c2f5bfd6 KH |
984 | { |
985 | int len = strlen (name); | |
35027d0c | 986 | int i, j, n; |
cf23b845 | 987 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 988 | Lisp_Object val; |
4485a28e | 989 | char *p; |
c2f5bfd6 | 990 | |
e3928081 | 991 | if (len > 255 || !len) |
c2f5bfd6 KH |
992 | /* Maximum XLFD name length is 255. */ |
993 | return -1; | |
ec6fe57c | 994 | /* Accept "*-.." as a fully specified XLFD. */ |
e3928081 | 995 | if (name[0] == '*' && (len == 1 || name[1] == '-')) |
ec6fe57c KH |
996 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; |
997 | else | |
998 | i = 0; | |
999 | for (p = name + i; *p; p++) | |
35027d0c KH |
1000 | if (*p == '-') |
1001 | { | |
1002 | f[i++] = p + 1; | |
1003 | if (i == XLFD_LAST_INDEX) | |
1004 | break; | |
1005 | } | |
1006 | f[i] = name + len; | |
c2f5bfd6 | 1007 | |
2f286d4f KH |
1008 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1009 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1010 | |
ec6fe57c | 1011 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1012 | { |
35027d0c | 1013 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1014 | int pixel_size; |
1015 | ||
2f286d4f KH |
1016 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1017 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1018 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1019 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1020 | { |
2f286d4f | 1021 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1022 | if (! NILP (val)) |
4485a28e | 1023 | { |
2f286d4f | 1024 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1025 | return -1; |
1026 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1027 | } |
1028 | } | |
2f286d4f | 1029 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1030 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1031 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1032 | else | |
1033 | ASET (font, FONT_REGISTRY_INDEX, | |
1034 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1035 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1036 | 1)); | |
ec6fe57c KH |
1037 | p = f[XLFD_PIXEL_INDEX]; |
1038 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1039 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1040 | else |
1041 | { | |
35027d0c KH |
1042 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1043 | if (INTEGERP (val)) | |
ec6fe57c | 1044 | ASET (font, FONT_SIZE_INDEX, val); |
b57d9029 KH |
1045 | else if (FONT_ENTITY_P (font)) |
1046 | return -1; | |
ec6fe57c KH |
1047 | else |
1048 | { | |
1049 | double point_size = -1; | |
1050 | ||
d0ab1ebe | 1051 | font_assert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1052 | p = f[XLFD_POINT_INDEX]; |
1053 | if (*p == '[') | |
1054 | point_size = parse_matrix (p); | |
1055 | else if (isdigit (*p)) | |
1056 | point_size = atoi (p), point_size /= 10; | |
1057 | if (point_size >= 0) | |
1058 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1059 | } |
1060 | } | |
ec6fe57c | 1061 | |
087048cd KH |
1062 | val = INTERN_FIELD (XLFD_RESY_INDEX); |
1063 | if (! NILP (val) && ! INTEGERP (val)) | |
1064 | return -1; | |
1065 | ASET (font, FONT_DPI_INDEX, val); | |
35027d0c KH |
1066 | val = INTERN_FIELD (XLFD_SPACING_INDEX); |
1067 | if (! NILP (val)) | |
ec6fe57c | 1068 | { |
35027d0c KH |
1069 | val = font_prop_validate_spacing (QCspacing, val); |
1070 | if (! INTEGERP (val)) | |
1071 | return -1; | |
1072 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1073 | } |
ec6fe57c KH |
1074 | p = f[XLFD_AVGWIDTH_INDEX]; |
1075 | if (*p == '~') | |
1076 | p++; | |
087048cd KH |
1077 | val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0); |
1078 | if (! NILP (val) && ! INTEGERP (val)) | |
1079 | return -1; | |
1080 | ASET (font, FONT_AVGWIDTH_INDEX, val); | |
4485a28e KH |
1081 | } |
1082 | else | |
c2f5bfd6 | 1083 | { |
4485a28e | 1084 | int wild_card_found = 0; |
ec6fe57c | 1085 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1086 | |
35027d0c KH |
1087 | if (FONT_ENTITY_P (font)) |
1088 | return -1; | |
ec6fe57c | 1089 | for (j = 0; j < i; j++) |
4485a28e | 1090 | { |
ec6fe57c | 1091 | if (*f[j] == '*') |
4485a28e | 1092 | { |
ec6fe57c KH |
1093 | if (f[j][1] && f[j][1] != '-') |
1094 | return -1; | |
1095 | prop[j] = Qnil; | |
1096 | wild_card_found = 1; | |
1097 | } | |
ec6fe57c | 1098 | else if (j + 1 < i) |
35027d0c | 1099 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1100 | else |
2f286d4f | 1101 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1102 | } |
1103 | if (! wild_card_found) | |
c2f5bfd6 | 1104 | return -1; |
ec6fe57c | 1105 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1106 | return -1; |
ec6fe57c | 1107 | |
35027d0c KH |
1108 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1109 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1110 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1111 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1112 | if (! NILP (prop[i])) |
35027d0c KH |
1113 | { |
1114 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1115 | return -1; | |
1116 | ASET (font, j, make_number (n)); | |
1117 | } | |
1118 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1119 | val = prop[XLFD_REGISTRY_INDEX]; |
1120 | if (NILP (val)) | |
c2f5bfd6 | 1121 | { |
ec6fe57c KH |
1122 | val = prop[XLFD_ENCODING_INDEX]; |
1123 | if (! NILP (val)) | |
35027d0c | 1124 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1125 | } |
ec6fe57c | 1126 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1127 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1128 | else |
35027d0c KH |
1129 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1130 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1131 | if (! NILP (val)) |
35027d0c | 1132 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1133 | |
1134 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1135 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1136 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1137 | { |
ec6fe57c | 1138 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1139 | |
ec6fe57c KH |
1140 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1141 | } | |
c2f5bfd6 | 1142 | |
35027d0c KH |
1143 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1144 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1145 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1146 | { | |
1147 | val = font_prop_validate_spacing (QCspacing, | |
1148 | prop[XLFD_SPACING_INDEX]); | |
1149 | if (! INTEGERP (val)) | |
1150 | return -1; | |
1151 | ASET (font, FONT_SPACING_INDEX, val); | |
1152 | } | |
ec6fe57c | 1153 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1154 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1155 | } |
1156 | ||
ec6fe57c | 1157 | return 0; |
c2f5bfd6 KH |
1158 | } |
1159 | ||
1160 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1161 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1162 | 0, use PIXEL_SIZE instead. */ | |
1163 | ||
1164 | int | |
971de7fb | 1165 | font_unparse_xlfd (Lisp_Object font, int pixel_size, char *name, int nbytes) |
c2f5bfd6 | 1166 | { |
e663c700 PE |
1167 | char *p; |
1168 | const char *f[XLFD_REGISTRY_INDEX + 1]; | |
c2f5bfd6 KH |
1169 | Lisp_Object val; |
1170 | int i, j, len = 0; | |
1171 | ||
d0ab1ebe | 1172 | font_assert (FONTP (font)); |
c2f5bfd6 KH |
1173 | |
1174 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1175 | i++, j++) | |
1176 | { | |
1177 | if (i == FONT_ADSTYLE_INDEX) | |
1178 | j = XLFD_ADSTYLE_INDEX; | |
1179 | else if (i == FONT_REGISTRY_INDEX) | |
1180 | j = XLFD_REGISTRY_INDEX; | |
1181 | val = AREF (font, i); | |
1182 | if (NILP (val)) | |
1bb1d99b KH |
1183 | { |
1184 | if (j == XLFD_REGISTRY_INDEX) | |
1185 | f[j] = "*-*", len += 4; | |
1186 | else | |
1187 | f[j] = "*", len += 2; | |
1188 | } | |
c2f5bfd6 KH |
1189 | else |
1190 | { | |
1191 | if (SYMBOLP (val)) | |
1192 | val = SYMBOL_NAME (val); | |
1bb1d99b | 1193 | if (j == XLFD_REGISTRY_INDEX |
51b59d79 | 1194 | && ! strchr (SSDATA (val), '-')) |
1bb1d99b KH |
1195 | { |
1196 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1197 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1198 | { | |
e663c700 PE |
1199 | f[j] = p = alloca (SBYTES (val) + 3); |
1200 | sprintf (p, "%s-*", SDATA (val)); | |
1bb1d99b KH |
1201 | len += SBYTES (val) + 3; |
1202 | } | |
1203 | else | |
1204 | { | |
e663c700 PE |
1205 | f[j] = p = alloca (SBYTES (val) + 4); |
1206 | sprintf (p, "%s*-*", SDATA (val)); | |
1bb1d99b KH |
1207 | len += SBYTES (val) + 4; |
1208 | } | |
1209 | } | |
1210 | else | |
51b59d79 | 1211 | f[j] = SSDATA (val), len += SBYTES (val) + 1; |
c2f5bfd6 KH |
1212 | } |
1213 | } | |
1214 | ||
1215 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1216 | i++, j++) | |
1217 | { | |
35027d0c | 1218 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 KH |
1219 | if (NILP (val)) |
1220 | f[j] = "*", len += 2; | |
1221 | else | |
1222 | { | |
35027d0c | 1223 | val = SYMBOL_NAME (val); |
51b59d79 | 1224 | f[j] = SSDATA (val), len += SBYTES (val) + 1; |
c2f5bfd6 KH |
1225 | } |
1226 | } | |
1227 | ||
1228 | val = AREF (font, FONT_SIZE_INDEX); | |
d0ab1ebe | 1229 | font_assert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1230 | if (INTEGERP (val)) |
1231 | { | |
35027d0c | 1232 | i = XINT (val); |
81aefea4 SM |
1233 | if (i <= 0) |
1234 | i = pixel_size; | |
c2f5bfd6 | 1235 | if (i > 0) |
81aefea4 | 1236 | { |
e663c700 PE |
1237 | f[XLFD_PIXEL_INDEX] = p = alloca (22); |
1238 | len += sprintf (p, "%d-*", i) + 1; | |
81aefea4 SM |
1239 | } |
1240 | else | |
1241 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; | |
c2f5bfd6 KH |
1242 | } |
1243 | else if (FLOATP (val)) | |
1244 | { | |
35027d0c | 1245 | i = XFLOAT_DATA (val) * 10; |
e663c700 PE |
1246 | f[XLFD_PIXEL_INDEX] = p = alloca (12); |
1247 | len += sprintf (p, "*-%d", i) + 1; | |
c2f5bfd6 KH |
1248 | } |
1249 | else | |
ec6fe57c KH |
1250 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1251 | ||
35027d0c | 1252 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1253 | { |
35027d0c | 1254 | i = XINT (AREF (font, FONT_DPI_INDEX)); |
e663c700 PE |
1255 | f[XLFD_RESX_INDEX] = p = alloca (22); |
1256 | len += sprintf (p, "%d-%d", i, i) + 1; | |
c2f5bfd6 KH |
1257 | } |
1258 | else | |
35027d0c KH |
1259 | f[XLFD_RESX_INDEX] = "*-*", len += 4; |
1260 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
ec6fe57c | 1261 | { |
35027d0c | 1262 | int spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1263 | |
35027d0c KH |
1264 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1265 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1266 | : spacing <= FONT_SPACING_MONO ? "m" | |
1267 | : "c"); | |
1268 | len += 2; | |
ec6fe57c | 1269 | } |
35027d0c KH |
1270 | else |
1271 | f[XLFD_SPACING_INDEX] = "*", len += 2; | |
1272 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1273 | { | |
c2982e87 PE |
1274 | f[XLFD_AVGWIDTH_INDEX] = p = alloca (22); |
1275 | len += sprintf (p, "%"pI"d", | |
1276 | XINT (AREF (font, FONT_AVGWIDTH_INDEX))) + 1; | |
35027d0c KH |
1277 | } |
1278 | else | |
1279 | f[XLFD_AVGWIDTH_INDEX] = "*", len += 2; | |
ec6fe57c | 1280 | len++; /* for terminating '\0'. */ |
c2f5bfd6 KH |
1281 | if (len >= nbytes) |
1282 | return -1; | |
35027d0c | 1283 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1284 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1285 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1286 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1287 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1288 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1289 | f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1290 | } |
1291 | ||
8c102d5b CY |
1292 | /* Parse NAME (null terminated) and store information in FONT |
1293 | (font-spec or font-entity). NAME is supplied in either the | |
1294 | Fontconfig or GTK font name format. If NAME is successfully | |
1295 | parsed, return 0. Otherwise return -1. | |
1296 | ||
1297 | The fontconfig format is | |
1298 | ||
1299 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1300 | ||
1301 | The GTK format is | |
1302 | ||
1303 | FAMILY [PROPS...] [SIZE] | |
1304 | ||
1305 | This function tries to guess which format it is. */ | |
ef18374f | 1306 | |
2f7c71a1 | 1307 | static int |
09d93395 | 1308 | font_parse_fcname (char *name, Lisp_Object font) |
ef18374f | 1309 | { |
8c102d5b CY |
1310 | char *p, *q; |
1311 | char *size_beg = NULL, *size_end = NULL; | |
1312 | char *props_beg = NULL, *family_end = NULL; | |
9331887d | 1313 | int len = strlen (name); |
ef18374f | 1314 | |
ec6fe57c KH |
1315 | if (len == 0) |
1316 | return -1; | |
8c102d5b CY |
1317 | |
1318 | for (p = name; *p; p++) | |
ef18374f | 1319 | { |
8c102d5b CY |
1320 | if (*p == '\\' && p[1]) |
1321 | p++; | |
1322 | else if (*p == ':') | |
ef18374f | 1323 | { |
59facb78 | 1324 | props_beg = family_end = p; |
8c102d5b CY |
1325 | break; |
1326 | } | |
1327 | else if (*p == '-') | |
1328 | { | |
b1868a1a | 1329 | int decimal = 0, size_found = 1; |
8c102d5b | 1330 | for (q = p + 1; *q && *q != ':'; q++) |
b1868a1a | 1331 | if (! isdigit(*q)) |
8c102d5b | 1332 | { |
b1868a1a CY |
1333 | if (*q != '.' || decimal) |
1334 | { | |
1335 | size_found = 0; | |
1336 | break; | |
1337 | } | |
1338 | decimal = 1; | |
8c102d5b CY |
1339 | } |
1340 | if (size_found) | |
1341 | { | |
1342 | family_end = p; | |
1343 | size_beg = p + 1; | |
1344 | size_end = q; | |
1345 | break; | |
1346 | } | |
ef18374f | 1347 | } |
ef18374f | 1348 | } |
9331887d | 1349 | |
8c102d5b CY |
1350 | if (family_end) |
1351 | { | |
637fa988 JD |
1352 | Lisp_Object extra_props = Qnil; |
1353 | ||
8c102d5b CY |
1354 | /* A fontconfig name with size and/or property data. */ |
1355 | if (family_end > name) | |
1356 | { | |
1357 | Lisp_Object family; | |
1358 | family = font_intern_prop (name, family_end - name, 1); | |
1359 | ASET (font, FONT_FAMILY_INDEX, family); | |
1360 | } | |
1361 | if (size_beg) | |
1362 | { | |
1363 | double point_size = strtod (size_beg, &size_end); | |
1364 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1365 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1366 | props_beg = size_end; |
8c102d5b CY |
1367 | } |
1368 | if (props_beg) | |
1369 | { | |
d26424c5 | 1370 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1371 | Lisp_Object val; |
8c102d5b | 1372 | |
59facb78 | 1373 | for (p = props_beg; *p; p = q) |
8c102d5b | 1374 | { |
8c102d5b | 1375 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1376 | if (*q != '=') |
1377 | { | |
1378 | /* Must be an enumerated value. */ | |
59facb78 CY |
1379 | int word_len; |
1380 | p = p + 1; | |
1381 | word_len = q - p; | |
8c102d5b | 1382 | val = font_intern_prop (p, q - p, 1); |
9277a69d | 1383 | |
4ec88040 AS |
1384 | #define PROP_MATCH(STR) (word_len == strlen (STR) \ |
1385 | && memcmp (p, STR, strlen (STR)) == 0) | |
1386 | ||
1387 | if (PROP_MATCH ("light") | |
1388 | || PROP_MATCH ("medium") | |
1389 | || PROP_MATCH ("demibold") | |
1390 | || PROP_MATCH ("bold") | |
1391 | || PROP_MATCH ("black")) | |
8c102d5b | 1392 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); |
4ec88040 AS |
1393 | else if (PROP_MATCH ("roman") |
1394 | || PROP_MATCH ("italic") | |
1395 | || PROP_MATCH ("oblique")) | |
8c102d5b | 1396 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); |
4ec88040 | 1397 | else if (PROP_MATCH ("charcell")) |
8c102d5b CY |
1398 | ASET (font, FONT_SPACING_INDEX, |
1399 | make_number (FONT_SPACING_CHARCELL)); | |
4ec88040 | 1400 | else if (PROP_MATCH ("mono")) |
8c102d5b CY |
1401 | ASET (font, FONT_SPACING_INDEX, |
1402 | make_number (FONT_SPACING_MONO)); | |
4ec88040 | 1403 | else if (PROP_MATCH ("proportional")) |
8c102d5b CY |
1404 | ASET (font, FONT_SPACING_INDEX, |
1405 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1406 | #undef PROP_MATCH |
8c102d5b | 1407 | } |
59facb78 | 1408 | else |
8c102d5b | 1409 | { |
59facb78 | 1410 | /* KEY=VAL pairs */ |
8c102d5b | 1411 | Lisp_Object key; |
59facb78 | 1412 | int prop; |
51c01100 | 1413 | |
59facb78 | 1414 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1415 | prop = FONT_SIZE_INDEX; |
1416 | else | |
1417 | { | |
1418 | key = font_intern_prop (p, q - p, 1); | |
1419 | prop = get_font_prop_index (key); | |
1420 | } | |
77989187 | 1421 | |
8c102d5b CY |
1422 | p = q + 1; |
1423 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1424 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1425 | |
d26424c5 KH |
1426 | if (prop >= FONT_FOUNDRY_INDEX |
1427 | && prop < FONT_EXTRA_INDEX) | |
637fa988 | 1428 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); |
ce75f06e | 1429 | else |
637fa988 JD |
1430 | { |
1431 | extra_props = nconc2 (extra_props, | |
1432 | Fcons (Fcons (key, val), Qnil)); | |
1433 | } | |
8c102d5b | 1434 | } |
d26424c5 | 1435 | p = q; |
8c102d5b | 1436 | } |
8c102d5b | 1437 | } |
637fa988 JD |
1438 | |
1439 | if (! NILP (extra_props)) | |
1440 | { | |
1441 | struct font_driver_list *driver_list = font_driver_list; | |
1442 | for ( ; driver_list; driver_list = driver_list->next) | |
1443 | if (driver_list->driver->filter_properties) | |
1444 | (*driver_list->driver->filter_properties) (font, extra_props); | |
1445 | } | |
ce75f06e | 1446 | |
8c102d5b CY |
1447 | } |
1448 | else | |
ef18374f | 1449 | { |
8c102d5b CY |
1450 | /* Either a fontconfig-style name with no size and property |
1451 | data, or a GTK-style name. */ | |
6608a7d8 CY |
1452 | Lisp_Object weight = Qnil, slant = Qnil; |
1453 | Lisp_Object width = Qnil, size = Qnil; | |
1454 | char *word_start; | |
1455 | int word_len; | |
6608a7d8 CY |
1456 | |
1457 | /* Scan backwards from the end, looking for a size. */ | |
1458 | for (p = name + len - 1; p >= name; p--) | |
1459 | if (!isdigit (*p)) | |
1460 | break; | |
1461 | ||
1462 | if ((p < name + len - 1) && ((p + 1 == name) || *p == ' ')) | |
1463 | /* Found a font size. */ | |
1464 | size = make_float (strtod (p + 1, NULL)); | |
1465 | else | |
1466 | p = name + len; | |
ef18374f | 1467 | |
6608a7d8 CY |
1468 | /* Now P points to the termination of the string, sans size. |
1469 | Scan backwards, looking for font properties. */ | |
1470 | for (; p > name; p = q) | |
ef18374f | 1471 | { |
6608a7d8 | 1472 | for (q = p - 1; q >= name; q--) |
9331887d | 1473 | { |
6608a7d8 CY |
1474 | if (q > name && *(q-1) == '\\') |
1475 | --q; /* Skip quoting backslashes. */ | |
1476 | else if (*q == ' ') | |
1477 | break; | |
027a33c0 | 1478 | } |
8c102d5b | 1479 | |
6608a7d8 CY |
1480 | word_start = q + 1; |
1481 | word_len = p - word_start; | |
8c102d5b | 1482 | |
4ec88040 AS |
1483 | #define PROP_MATCH(STR) \ |
1484 | (word_len == strlen (STR) \ | |
1485 | && memcmp (word_start, STR, strlen (STR)) == 0) | |
1486 | #define PROP_SAVE(VAR, STR) \ | |
1487 | (VAR = NILP (VAR) ? font_intern_prop (STR, strlen (STR), 1) : VAR) | |
1488 | ||
1489 | if (PROP_MATCH ("Ultra-Light")) | |
1490 | PROP_SAVE (weight, "ultra-light"); | |
1491 | else if (PROP_MATCH ("Light")) | |
1492 | PROP_SAVE (weight, "light"); | |
1493 | else if (PROP_MATCH ("Book")) | |
1494 | PROP_SAVE (weight, "book"); | |
1495 | else if (PROP_MATCH ("Medium")) | |
1496 | PROP_SAVE (weight, "medium"); | |
1497 | else if (PROP_MATCH ("Semi-Bold")) | |
1498 | PROP_SAVE (weight, "semi-bold"); | |
1499 | else if (PROP_MATCH ("Bold")) | |
1500 | PROP_SAVE (weight, "bold"); | |
1501 | else if (PROP_MATCH ("Italic")) | |
1502 | PROP_SAVE (slant, "italic"); | |
1503 | else if (PROP_MATCH ("Oblique")) | |
1504 | PROP_SAVE (slant, "oblique"); | |
1505 | else if (PROP_MATCH ("Semi-Condensed")) | |
1506 | PROP_SAVE (width, "semi-condensed"); | |
1507 | else if (PROP_MATCH ("Condensed")) | |
1508 | PROP_SAVE (width, "condensed"); | |
6608a7d8 CY |
1509 | /* An unknown word must be part of the font name. */ |
1510 | else | |
fe69a722 | 1511 | { |
6608a7d8 CY |
1512 | family_end = p; |
1513 | break; | |
fe69a722 | 1514 | } |
ef18374f | 1515 | } |
8c102d5b | 1516 | #undef PROP_MATCH |
372fb76b | 1517 | #undef PROP_SAVE |
9ba6fd41 | 1518 | |
8c102d5b | 1519 | if (family_end) |
6608a7d8 CY |
1520 | ASET (font, FONT_FAMILY_INDEX, |
1521 | font_intern_prop (name, family_end - name, 1)); | |
1522 | if (!NILP (size)) | |
1523 | ASET (font, FONT_SIZE_INDEX, size); | |
1524 | if (!NILP (weight)) | |
1525 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, weight); | |
1526 | if (!NILP (slant)) | |
1527 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, slant); | |
1528 | if (!NILP (width)) | |
1529 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, width); | |
8c102d5b | 1530 | } |
17ab8f5d | 1531 | |
9331887d | 1532 | return 0; |
ef18374f KH |
1533 | } |
1534 | ||
1535 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1536 | NAME (NBYTES length), and return the name length. If | |
1537 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1538 | ||
1539 | int | |
09d93395 | 1540 | font_unparse_fcname (Lisp_Object font, int pixel_size, char *name, int nbytes) |
ef18374f | 1541 | { |
b1868a1a | 1542 | Lisp_Object family, foundry; |
35027d0c | 1543 | Lisp_Object tail, val; |
ec6fe57c | 1544 | int point_size; |
ec6fe57c | 1545 | int i, len = 1; |
ef18374f | 1546 | char *p; |
a9262bb8 | 1547 | Lisp_Object styles[3]; |
675e2c69 | 1548 | const char *style_names[3] = { "weight", "slant", "width" }; |
35027d0c | 1549 | char work[256]; |
ef18374f | 1550 | |
b1868a1a CY |
1551 | family = AREF (font, FONT_FAMILY_INDEX); |
1552 | if (! NILP (family)) | |
1553 | { | |
1554 | if (SYMBOLP (family)) | |
1555 | { | |
1556 | family = SYMBOL_NAME (family); | |
1557 | len += SBYTES (family); | |
1558 | } | |
1559 | else | |
1560 | family = Qnil; | |
1561 | } | |
ec6fe57c KH |
1562 | |
1563 | val = AREF (font, FONT_SIZE_INDEX); | |
1564 | if (INTEGERP (val)) | |
ef18374f | 1565 | { |
ec6fe57c KH |
1566 | if (XINT (val) != 0) |
1567 | pixel_size = XINT (val); | |
1568 | point_size = -1; | |
1569 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1570 | } |
3ddb0639 | 1571 | else |
ef18374f | 1572 | { |
3ddb0639 PE |
1573 | if (! FLOATP (val)) |
1574 | abort (); | |
ec6fe57c KH |
1575 | pixel_size = -1; |
1576 | point_size = (int) XFLOAT_DATA (val); | |
1577 | len += 11; /* for "-NUM" */ | |
ef18374f | 1578 | } |
ec6fe57c | 1579 | |
b1868a1a CY |
1580 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1581 | if (! NILP (foundry)) | |
1582 | { | |
1583 | if (SYMBOLP (foundry)) | |
1584 | { | |
1585 | foundry = SYMBOL_NAME (foundry); | |
1586 | len += 9 + SBYTES (foundry); /* ":foundry=NAME" */ | |
1587 | } | |
1588 | else | |
1589 | foundry = Qnil; | |
1590 | } | |
ec6fe57c | 1591 | |
35027d0c | 1592 | for (i = 0; i < 3; i++) |
a9262bb8 | 1593 | { |
35027d0c KH |
1594 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
1595 | if (! NILP (styles[i])) | |
1596 | len += sprintf (work, ":%s=%s", style_names[i], | |
1597 | SDATA (SYMBOL_NAME (styles[i]))); | |
ec6fe57c | 1598 | } |
35027d0c KH |
1599 | |
1600 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c2982e87 | 1601 | len += sprintf (work, ":dpi=%"pI"d", XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c KH |
1602 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
1603 | len += strlen (":spacing=100"); | |
1604 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1605 | len += strlen (":scalable=false"); /* or ":scalable=true" */ | |
1606 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
ec6fe57c | 1607 | { |
13a547c6 | 1608 | Lisp_Object key = XCAR (XCAR (tail)), value = XCDR (XCAR (tail)); |
35027d0c KH |
1609 | |
1610 | len += SBYTES (SYMBOL_NAME (key)) + 1; /* for :KEY= */ | |
13a547c6 PE |
1611 | if (STRINGP (value)) |
1612 | len += SBYTES (value); | |
1613 | else if (INTEGERP (value)) | |
c2982e87 | 1614 | len += sprintf (work, "%"pI"d", XINT (value)); |
13a547c6 PE |
1615 | else if (SYMBOLP (value)) |
1616 | len += (NILP (value) ? 5 : 4); /* for "false" or "true" */ | |
ec6fe57c KH |
1617 | } |
1618 | ||
ef18374f KH |
1619 | if (len > nbytes) |
1620 | return -1; | |
1621 | p = name; | |
b1868a1a CY |
1622 | if (! NILP (family)) |
1623 | p += sprintf (p, "%s", SDATA (family)); | |
ec6fe57c KH |
1624 | if (point_size > 0) |
1625 | { | |
1626 | if (p == name) | |
1627 | p += sprintf (p, "%d", point_size); | |
1628 | else | |
1629 | p += sprintf (p, "-%d", point_size); | |
1630 | } | |
ef18374f KH |
1631 | else if (pixel_size > 0) |
1632 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
35027d0c | 1633 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
a9262bb8 KH |
1634 | p += sprintf (p, ":foundry=%s", |
1635 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1636 | for (i = 0; i < 3; i++) | |
35027d0c | 1637 | if (! NILP (styles[i])) |
a9262bb8 | 1638 | p += sprintf (p, ":%s=%s", style_names[i], |
35027d0c KH |
1639 | SDATA (SYMBOL_NAME (styles[i]))); |
1640 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c2982e87 | 1641 | p += sprintf (p, ":dpi=%"pI"d", XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c | 1642 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
c2982e87 | 1643 | p += sprintf (p, ":spacing=%"pI"d", XINT (AREF (font, FONT_SPACING_INDEX))); |
35027d0c KH |
1644 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
1645 | { | |
1646 | if (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0) | |
1647 | p += sprintf (p, ":scalable=true"); | |
1648 | else | |
1649 | p += sprintf (p, ":scalable=false"); | |
1650 | } | |
ef18374f KH |
1651 | return (p - name); |
1652 | } | |
1653 | ||
1654 | /* Parse NAME (null terminated) and store information in FONT | |
1655 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1656 | 0. Otherwise return -1. */ |
ef18374f KH |
1657 | |
1658 | static int | |
09d93395 | 1659 | font_parse_name (char *name, Lisp_Object font) |
ef18374f | 1660 | { |
8966b757 | 1661 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
e950d6f1 | 1662 | return font_parse_xlfd (name, font); |
ec6fe57c | 1663 | return font_parse_fcname (name, font); |
ef18374f KH |
1664 | } |
1665 | ||
35027d0c KH |
1666 | |
1667 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1668 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1669 | part. */ | |
45eb10fb | 1670 | |
c2f5bfd6 | 1671 | void |
971de7fb | 1672 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1673 | { |
35027d0c KH |
1674 | int len; |
1675 | char *p0, *p1; | |
1676 | ||
d0ab1ebe KH |
1677 | if (! NILP (family) |
1678 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1679 | { |
35027d0c KH |
1680 | CHECK_STRING (family); |
1681 | len = SBYTES (family); | |
51b59d79 | 1682 | p0 = SSDATA (family); |
8966b757 | 1683 | p1 = strchr (p0, '-'); |
35027d0c | 1684 | if (p1) |
c2f5bfd6 | 1685 | { |
9903d1e6 | 1686 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1687 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1688 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1689 | p1++; |
1690 | len -= p1 - p0; | |
2f286d4f | 1691 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1692 | } |
35027d0c KH |
1693 | else |
1694 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1695 | } |
35027d0c | 1696 | if (! NILP (registry)) |
c2f5bfd6 | 1697 | { |
35027d0c KH |
1698 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1699 | CHECK_STRING (registry); | |
1700 | len = SBYTES (registry); | |
51b59d79 | 1701 | p0 = SSDATA (registry); |
8966b757 | 1702 | p1 = strchr (p0, '-'); |
35027d0c | 1703 | if (! p1) |
c2f5bfd6 | 1704 | { |
35027d0c KH |
1705 | if (SDATA (registry)[len - 1] == '*') |
1706 | registry = concat2 (registry, build_string ("-*")); | |
1707 | else | |
1708 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1709 | } |
35027d0c KH |
1710 | registry = Fdowncase (registry); |
1711 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1712 | } |
1713 | } | |
1714 | ||
45eb10fb | 1715 | \f |
35027d0c KH |
1716 | /* This part (through the next ^L) is still experimental and not |
1717 | tested much. We may drastically change codes. */ | |
10d16101 | 1718 | |
45eb10fb | 1719 | /* OTF handler */ |
10d16101 | 1720 | |
6a3dadd2 KH |
1721 | #if 0 |
1722 | ||
e950d6f1 KH |
1723 | #define LGSTRING_HEADER_SIZE 6 |
1724 | #define LGSTRING_GLYPH_SIZE 8 | |
1725 | ||
1726 | static int | |
1727 | check_gstring (gstring) | |
1728 | Lisp_Object gstring; | |
1729 | { | |
1730 | Lisp_Object val; | |
1731 | int i, j; | |
1732 | ||
1733 | CHECK_VECTOR (gstring); | |
1734 | val = AREF (gstring, 0); | |
1735 | CHECK_VECTOR (val); | |
1736 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1737 | goto err; | |
1738 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1739 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1740 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1741 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1742 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1743 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1744 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1745 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1746 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1747 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1748 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1749 | |
071132a9 | 1750 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1751 | { |
1752 | val = LGSTRING_GLYPH (gstring, i); | |
1753 | CHECK_VECTOR (val); | |
1754 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1755 | goto err; | |
f9ffa1ea | 1756 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1757 | break; |
f9ffa1ea SM |
1758 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1759 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1760 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1761 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1762 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1763 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1764 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1765 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1766 | { |
f9ffa1ea | 1767 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1768 | CHECK_VECTOR (val); |
1769 | if (ASIZE (val) < 3) | |
1770 | goto err; | |
1771 | for (j = 0; j < 3; j++) | |
1772 | CHECK_NUMBER (AREF (val, j)); | |
1773 | } | |
1774 | } | |
1775 | return i; | |
1776 | err: | |
1777 | error ("Invalid glyph-string format"); | |
1778 | return -1; | |
1779 | } | |
1780 | ||
cf385d93 KH |
1781 | static void |
1782 | check_otf_features (otf_features) | |
1783 | Lisp_Object otf_features; | |
1784 | { | |
35027d0c | 1785 | Lisp_Object val; |
cf385d93 KH |
1786 | |
1787 | CHECK_CONS (otf_features); | |
1788 | CHECK_SYMBOL (XCAR (otf_features)); | |
1789 | otf_features = XCDR (otf_features); | |
1790 | CHECK_CONS (otf_features); | |
1791 | CHECK_SYMBOL (XCAR (otf_features)); | |
1792 | otf_features = XCDR (otf_features); | |
1793 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1794 | { | |
1795 | CHECK_SYMBOL (Fcar (val)); | |
1796 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1797 | error ("Invalid OTF GSUB feature: %s", SYMBOL_NAME (XCAR (val))); | |
1798 | } | |
1799 | otf_features = XCDR (otf_features); | |
1800 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1801 | { | |
1802 | CHECK_SYMBOL (Fcar (val)); | |
1803 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
1804 | error ("Invalid OTF GPOS feature: %s", SYMBOL_NAME (XCAR (val))); | |
1805 | } | |
1806 | } | |
1807 | ||
c2f5bfd6 KH |
1808 | #ifdef HAVE_LIBOTF |
1809 | #include <otf.h> | |
1810 | ||
733fd013 | 1811 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1812 | |
1813 | static Lisp_Object | |
1814 | otf_tag_symbol (tag) | |
1815 | OTF_Tag tag; | |
1816 | { | |
1817 | char name[5]; | |
1818 | ||
1819 | OTF_tag_name (tag, name); | |
1820 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1821 | } | |
1822 | ||
1823 | static OTF * | |
35027d0c KH |
1824 | otf_open (file) |
1825 | Lisp_Object file; | |
c2f5bfd6 | 1826 | { |
35027d0c | 1827 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1828 | OTF *otf; |
1829 | ||
1830 | if (! NILP (val)) | |
1831 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1832 | else | |
c2f5bfd6 | 1833 | { |
51b59d79 | 1834 | otf = STRINGP (file) ? OTF_open (SSDATA (file)) : NULL; |
733fd013 | 1835 | val = make_save_value (otf, 0); |
35027d0c | 1836 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1837 | } |
733fd013 | 1838 | return otf; |
c2f5bfd6 KH |
1839 | } |
1840 | ||
1841 | ||
1842 | /* Return a list describing which scripts/languages FONT supports by | |
1843 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1844 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1845 | |
1846 | Lisp_Object | |
1847 | font_otf_capability (font) | |
1848 | struct font *font; | |
1849 | { | |
1850 | OTF *otf; | |
1851 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1852 | int i; | |
1853 | ||
35027d0c | 1854 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1855 | if (! otf) |
1856 | return Qnil; | |
1857 | for (i = 0; i < 2; i++) | |
1858 | { | |
1859 | OTF_GSUB_GPOS *gsub_gpos; | |
1860 | Lisp_Object script_list = Qnil; | |
1861 | int j; | |
1862 | ||
1863 | if (OTF_get_features (otf, i == 0) < 0) | |
1864 | continue; | |
1865 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1866 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1867 | { | |
1868 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1869 | Lisp_Object langsys_list = Qnil; | |
1870 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1871 | int k; | |
1872 | ||
1873 | for (k = script->LangSysCount; k >= 0; k--) | |
1874 | { | |
1875 | OTF_LangSys *langsys; | |
1876 | Lisp_Object feature_list = Qnil; | |
1877 | Lisp_Object langsys_tag; | |
1878 | int l; | |
1879 | ||
e80e09b4 | 1880 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1881 | { |
1882 | langsys = &script->DefaultLangSys; | |
1883 | langsys_tag = Qnil; | |
1884 | } | |
1885 | else | |
1886 | { | |
1887 | langsys = script->LangSys + k; | |
1888 | langsys_tag | |
1889 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1890 | } | |
e80e09b4 | 1891 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1892 | { |
1893 | OTF_Feature *feature | |
1894 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1895 | Lisp_Object feature_tag | |
1896 | = otf_tag_symbol (feature->FeatureTag); | |
1897 | ||
1898 | feature_list = Fcons (feature_tag, feature_list); | |
1899 | } | |
1900 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1901 | langsys_list); | |
1902 | } | |
1903 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1904 | script_list); | |
1905 | } | |
1906 | ||
1907 | if (i == 0) | |
1908 | XSETCAR (capability, script_list); | |
1909 | else | |
1910 | XSETCDR (capability, script_list); | |
1911 | } | |
1912 | ||
1913 | return capability; | |
1914 | } | |
1915 | ||
733fd013 KH |
1916 | /* Parse OTF features in SPEC and write a proper features spec string |
1917 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1918 | assured that the sufficient memory has already allocated for | |
1919 | FEATURES. */ | |
1920 | ||
e80e09b4 | 1921 | static void |
733fd013 | 1922 | generate_otf_features (spec, features) |
c2f5bfd6 | 1923 | Lisp_Object spec; |
733fd013 | 1924 | char *features; |
c2f5bfd6 KH |
1925 | { |
1926 | Lisp_Object val; | |
35027d0c | 1927 | char *p; |
c2f5bfd6 KH |
1928 | int asterisk; |
1929 | ||
733fd013 | 1930 | p = features; |
e80e09b4 | 1931 | *p = '\0'; |
c2f5bfd6 KH |
1932 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1933 | { | |
1934 | val = XCAR (spec); | |
e80e09b4 KH |
1935 | CHECK_SYMBOL (val); |
1936 | if (p > features) | |
733fd013 | 1937 | *p++ = ','; |
c2f5bfd6 KH |
1938 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1939 | { | |
1940 | asterisk = 1; | |
e80e09b4 | 1941 | *p++ = '*'; |
c2f5bfd6 KH |
1942 | } |
1943 | else if (! asterisk) | |
e80e09b4 KH |
1944 | { |
1945 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1946 | p += sprintf (p, "%s", SDATA (val)); |
1947 | } | |
c2f5bfd6 | 1948 | else |
e80e09b4 KH |
1949 | { |
1950 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1951 | p += sprintf (p, "~%s", SDATA (val)); |
1952 | } | |
c2f5bfd6 | 1953 | } |
e80e09b4 KH |
1954 | if (CONSP (spec)) |
1955 | error ("OTF spec too long"); | |
1956 | } | |
1957 | ||
733fd013 KH |
1958 | Lisp_Object |
1959 | font_otf_DeviceTable (device_table) | |
1960 | OTF_DeviceTable *device_table; | |
1961 | { | |
1962 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1963 | ||
1964 | return Fcons (make_number (len), | |
1965 | make_unibyte_string (device_table->DeltaValue, len)); | |
1966 | } | |
1967 | ||
1968 | Lisp_Object | |
1969 | font_otf_ValueRecord (value_format, value_record) | |
1970 | int value_format; | |
1971 | OTF_ValueRecord *value_record; | |
1972 | { | |
1973 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1974 | ||
1975 | if (value_format & OTF_XPlacement) | |
43c0454d | 1976 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 1977 | if (value_format & OTF_YPlacement) |
43c0454d | 1978 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 1979 | if (value_format & OTF_XAdvance) |
43c0454d | 1980 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 1981 | if (value_format & OTF_YAdvance) |
43c0454d | 1982 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
1983 | if (value_format & OTF_XPlaDevice) |
1984 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
1985 | if (value_format & OTF_YPlaDevice) | |
1986 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
1987 | if (value_format & OTF_XAdvDevice) | |
1988 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
1989 | if (value_format & OTF_YAdvDevice) | |
1990 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
1991 | return val; | |
1992 | } | |
1993 | ||
1994 | Lisp_Object | |
1995 | font_otf_Anchor (anchor) | |
1996 | OTF_Anchor *anchor; | |
1997 | { | |
1998 | Lisp_Object val; | |
1999 | ||
2000 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2001 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2002 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2003 | if (anchor->AnchorFormat == 2) | |
2004 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2005 | else | |
2006 | { | |
2007 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2008 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2009 | } | |
2010 | return val; | |
2011 | } | |
c2f5bfd6 | 2012 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2013 | #endif /* 0 */ |
c2f5bfd6 | 2014 | |
c2f5bfd6 KH |
2015 | \f |
2016 | /* Font sorting */ | |
2017 | ||
f57e2426 J |
2018 | static unsigned font_score (Lisp_Object, Lisp_Object *); |
2019 | static int font_compare (const void *, const void *); | |
2020 | static Lisp_Object font_sort_entities (Lisp_Object, Lisp_Object, | |
2021 | Lisp_Object, int); | |
c2f5bfd6 | 2022 | |
55e41770 | 2023 | static double |
971de7fb | 2024 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
2025 | { |
2026 | Lisp_Object tail, elt; | |
2027 | Lisp_Object name = Qnil; | |
2028 | ||
2029 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2030 | { | |
2031 | elt = XCAR (tail); | |
2032 | if (FLOATP (XCDR (elt))) | |
2033 | { | |
2034 | if (STRINGP (XCAR (elt))) | |
2035 | { | |
2036 | if (NILP (name)) | |
2037 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2038 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2039 | return XFLOAT_DATA (XCDR (elt)); | |
2040 | } | |
2041 | else if (FONT_SPEC_P (XCAR (elt))) | |
2042 | { | |
2043 | if (font_match_p (XCAR (elt), font_entity)) | |
2044 | return XFLOAT_DATA (XCDR (elt)); | |
2045 | } | |
2046 | } | |
2047 | } | |
2048 | return 1.0; | |
2049 | } | |
2050 | ||
c2f5bfd6 KH |
2051 | /* We sort fonts by scoring each of them against a specified |
2052 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2053 | the value is, the closer the font is to the font-spec. | |
2054 | ||
4007dd1c KH |
2055 | The lowest 2 bits of the score is used for driver type. The font |
2056 | available by the most preferred font driver is 0. | |
35027d0c | 2057 | |
4007dd1c | 2058 | Each 7-bit in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2059 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2060 | ||
2061 | /* How many bits to shift to store the difference value of each font | |
35027d0c KH |
2062 | property in a score. Note that flots for FONT_TYPE_INDEX and |
2063 | FONT_REGISTRY_INDEX are not used. */ | |
c2f5bfd6 KH |
2064 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2065 | ||
9331887d KH |
2066 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2067 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2068 | SPEC_PROP. */ |
c2f5bfd6 KH |
2069 | |
2070 | static unsigned | |
971de7fb | 2071 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2072 | { |
2073 | unsigned score = 0; | |
2074 | int i; | |
c2f5bfd6 | 2075 | |
35027d0c KH |
2076 | /* Score three style numeric fields. Maximum difference is 127. */ |
2077 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2078 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2079 | { | |
790771b1 PE |
2080 | EMACS_INT diff = ((XINT (AREF (entity, i)) >> 8) |
2081 | - (XINT (spec_prop[i]) >> 8)); | |
35027d0c KH |
2082 | if (diff < 0) |
2083 | diff = - diff; | |
790771b1 | 2084 | score |= min (diff, 127) << sort_shift_bits[i]; |
35027d0c KH |
2085 | } |
2086 | ||
2087 | /* Score the size. Maximum difference is 127. */ | |
2088 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2089 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2090 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2091 | { |
2092 | /* We use the higher 6-bit for the actual size difference. The | |
2093 | lowest bit is set if the DPI is different. */ | |
55e41770 KH |
2094 | int diff; |
2095 | int pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2096 | |
55e41770 KH |
2097 | if (CONSP (Vface_font_rescale_alist)) |
2098 | pixel_size *= font_rescale_ratio (entity); | |
2099 | diff = pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX)); | |
35027d0c KH |
2100 | if (diff < 0) |
2101 | diff = - diff; | |
d0ab1ebe | 2102 | diff <<= 1; |
35027d0c KH |
2103 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2104 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2105 | diff |= 1; | |
c0a6070d KH |
2106 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2107 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2108 | diff |= 1; | |
35027d0c | 2109 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2110 | } |
2111 | ||
2112 | return score; | |
2113 | } | |
2114 | ||
2115 | ||
72d36834 KH |
2116 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2117 | of font-entity vectors. */ | |
c2f5bfd6 | 2118 | |
72d36834 KH |
2119 | static Lisp_Object |
2120 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2121 | { |
72d36834 KH |
2122 | int nargs = XINT (Flength (list)); |
2123 | Lisp_Object *args = alloca (sizeof (Lisp_Object) * nargs); | |
2124 | int i; | |
2125 | ||
2126 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2127 | args[i] = XCAR (list); | |
2128 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2129 | } |
2130 | ||
2131 | ||
2132 | /* The structure for elements being sorted by qsort. */ | |
2133 | struct font_sort_data | |
2134 | { | |
2135 | unsigned score; | |
72d36834 | 2136 | int font_driver_preference; |
c2f5bfd6 KH |
2137 | Lisp_Object entity; |
2138 | }; | |
2139 | ||
2140 | ||
72d36834 KH |
2141 | /* The comparison function for qsort. */ |
2142 | ||
2143 | static int | |
971de7fb | 2144 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2145 | { |
2146 | const struct font_sort_data *data1 = d1; | |
2147 | const struct font_sort_data *data2 = d2; | |
2148 | ||
2149 | if (data1->score < data2->score) | |
2150 | return -1; | |
2151 | else if (data1->score > data2->score) | |
2152 | return 1; | |
2153 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2154 | } | |
2155 | ||
2156 | ||
2157 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2158 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2159 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2160 | of FRAME before sorting. |
35027d0c | 2161 | |
c9477f01 KH |
2162 | If BEST-ONLY is nonzero, return the best matching entity (that |
2163 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2164 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2165 | a single vector of font-entities. | |
c9477f01 | 2166 | |
72d36834 KH |
2167 | This function does no optimization for the case that the total |
2168 | number of elements is 1. The caller should avoid calling this in | |
2169 | such a case. */ | |
c2f5bfd6 KH |
2170 | |
2171 | static Lisp_Object | |
971de7fb | 2172 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, Lisp_Object frame, int best_only) |
c2f5bfd6 | 2173 | { |
9331887d | 2174 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2175 | int len, maxlen, i; |
c2f5bfd6 | 2176 | struct font_sort_data *data; |
35027d0c | 2177 | unsigned best_score; |
72d36834 | 2178 | Lisp_Object best_entity; |
4007dd1c | 2179 | struct frame *f = XFRAME (frame); |
5ad03b97 | 2180 | Lisp_Object tail, vec IF_LINT (= Qnil); |
c2f5bfd6 KH |
2181 | USE_SAFE_ALLOCA; |
2182 | ||
9903d1e6 | 2183 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2184 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2185 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2186 | prefer_prop[FONT_SIZE_INDEX] | |
2187 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2188 | ||
72d36834 KH |
2189 | if (NILP (XCDR (list))) |
2190 | { | |
2191 | /* What we have to take care of is this single vector. */ | |
2192 | vec = XCAR (list); | |
2193 | maxlen = ASIZE (vec); | |
2194 | } | |
2195 | else if (best_only) | |
2196 | { | |
2197 | /* We don't have to perform sort, so there's no need of creating | |
2198 | a single vector. But, we must find the length of the longest | |
2199 | vector. */ | |
2200 | maxlen = 0; | |
2201 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2202 | if (maxlen < ASIZE (XCAR (tail))) | |
2203 | maxlen = ASIZE (XCAR (tail)); | |
2204 | } | |
2205 | else | |
2206 | { | |
2207 | /* We have to create a single vector to sort it. */ | |
2208 | vec = font_vconcat_entity_vectors (list); | |
2209 | maxlen = ASIZE (vec); | |
2210 | } | |
2211 | ||
2212 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * maxlen); | |
c9477f01 KH |
2213 | best_score = 0xFFFFFFFF; |
2214 | best_entity = Qnil; | |
72d36834 KH |
2215 | |
2216 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2217 | { |
72d36834 KH |
2218 | int font_driver_preference = 0; |
2219 | Lisp_Object current_font_driver; | |
ce75f06e | 2220 | |
72d36834 KH |
2221 | if (best_only) |
2222 | vec = XCAR (tail); | |
2223 | len = ASIZE (vec); | |
2224 | ||
2225 | /* We are sure that the length of VEC > 0. */ | |
2226 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2227 | /* Score the elements. */ | |
2228 | for (i = 0; i < len; i++) | |
35027d0c | 2229 | { |
72d36834 KH |
2230 | data[i].entity = AREF (vec, i); |
2231 | data[i].score | |
2232 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2233 | > 0) | |
2234 | ? font_score (data[i].entity, prefer_prop) | |
2235 | : 0xFFFFFFFF); | |
2236 | if (best_only && best_score > data[i].score) | |
2237 | { | |
2238 | best_score = data[i].score; | |
2239 | best_entity = data[i].entity; | |
2240 | if (best_score == 0) | |
2241 | break; | |
2242 | } | |
2243 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2244 | { | |
2245 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2246 | font_driver_preference++; | |
2247 | } | |
2248 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2249 | } |
72d36834 KH |
2250 | |
2251 | /* Sort if necessary. */ | |
2252 | if (! best_only) | |
2253 | { | |
2254 | qsort (data, len, sizeof *data, font_compare); | |
2255 | for (i = 0; i < len; i++) | |
2256 | ASET (vec, i, data[i].entity); | |
2257 | break; | |
2258 | } | |
2259 | else | |
2260 | vec = best_entity; | |
c2f5bfd6 | 2261 | } |
72d36834 | 2262 | |
c2f5bfd6 KH |
2263 | SAFE_FREE (); |
2264 | ||
652b9560 | 2265 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2266 | return vec; |
2267 | } | |
2268 | ||
2269 | \f | |
2270 | /* API of Font Service Layer. */ | |
2271 | ||
45eb10fb KH |
2272 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2273 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2274 | function with font_sort_order after setting up it. */ | |
2275 | ||
c2f5bfd6 | 2276 | void |
971de7fb | 2277 | font_update_sort_order (int *order) |
c2f5bfd6 | 2278 | { |
35027d0c | 2279 | int i, shift_bits; |
c2f5bfd6 | 2280 | |
943b7eea | 2281 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2282 | { |
2283 | int xlfd_idx = order[i]; | |
2284 | ||
2285 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2286 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2287 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2288 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2289 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2290 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2291 | else | |
2292 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2293 | } | |
2294 | } | |
2295 | ||
51c13510 | 2296 | static int |
971de7fb | 2297 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, Lisp_Object features, Lisp_Object table) |
51c13510 KH |
2298 | { |
2299 | Lisp_Object val; | |
2300 | int negative; | |
2301 | ||
2302 | table = assq_no_quit (script, table); | |
2303 | if (NILP (table)) | |
2304 | return 0; | |
2305 | table = XCDR (table); | |
2306 | if (! NILP (langsys)) | |
2307 | { | |
2308 | table = assq_no_quit (langsys, table); | |
2309 | if (NILP (table)) | |
2310 | return 0; | |
2311 | } | |
2312 | else | |
2313 | { | |
2314 | val = assq_no_quit (Qnil, table); | |
2315 | if (NILP (val)) | |
2316 | table = XCAR (table); | |
2317 | else | |
2318 | table = val; | |
2319 | } | |
2320 | table = XCDR (table); | |
2321 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2322 | { | |
2323 | if (NILP (XCAR (features))) | |
c423ecca KH |
2324 | { |
2325 | negative = 1; | |
2326 | continue; | |
2327 | } | |
51c13510 KH |
2328 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2329 | return 0; | |
2330 | } | |
2331 | return 1; | |
2332 | } | |
2333 | ||
2334 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2335 | ||
2336 | static int | |
3cba9369 | 2337 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2338 | { |
2339 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2340 | ||
2341 | script = XCAR (spec); | |
2342 | spec = XCDR (spec); | |
2343 | if (! NILP (spec)) | |
2344 | { | |
2345 | langsys = XCAR (spec); | |
2346 | spec = XCDR (spec); | |
2347 | if (! NILP (spec)) | |
2348 | { | |
2349 | gsub = XCAR (spec); | |
2350 | spec = XCDR (spec); | |
2351 | if (! NILP (spec)) | |
2352 | gpos = XCAR (spec); | |
2353 | } | |
2354 | } | |
2355 | ||
2356 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2357 | XCAR (otf_capability))) | |
2358 | return 0; | |
2359 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2360 | XCDR (otf_capability))) | |
2361 | return 0; | |
2362 | return 1; | |
2363 | } | |
2364 | ||
45eb10fb | 2365 | |
51c13510 KH |
2366 | |
2367 | /* Check if FONT (font-entity or font-object) matches with the font | |
2368 | specification SPEC. */ | |
45eb10fb | 2369 | |
ef18374f | 2370 | int |
971de7fb | 2371 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2372 | { |
51c13510 KH |
2373 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2374 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2375 | int i; |
2376 | ||
51c13510 KH |
2377 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2378 | if (! NILP (AREF (spec, i)) | |
2379 | && ! NILP (AREF (font, i)) | |
2380 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2381 | return 0; | |
2382 | props = XFONT_SPEC (spec)->props; | |
2383 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2384 | { | |
2385 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2386 | prop[i] = AREF (spec, i); | |
2387 | prop[FONT_SIZE_INDEX] | |
2388 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2389 | props = prop; | |
2390 | } | |
2391 | ||
2392 | if (font_score (font, props) > 0) | |
2393 | return 0; | |
2394 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2395 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2396 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2397 | { |
51c13510 KH |
2398 | Lisp_Object key = XCAR (XCAR (extra)); |
2399 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2400 | ||
2401 | if (EQ (key, QClang)) | |
2402 | { | |
2403 | val2 = assq_no_quit (key, font_extra); | |
2404 | if (NILP (val2)) | |
2405 | return 0; | |
2406 | val2 = XCDR (val2); | |
2407 | if (CONSP (val)) | |
2408 | { | |
2409 | if (! CONSP (val2)) | |
2410 | return 0; | |
2411 | while (CONSP (val)) | |
2412 | if (NILP (Fmemq (val, val2))) | |
2413 | return 0; | |
2414 | } | |
2415 | else | |
2416 | if (CONSP (val2) | |
2417 | ? NILP (Fmemq (val, XCDR (val2))) | |
2418 | : ! EQ (val, val2)) | |
2419 | return 0; | |
2420 | } | |
2421 | else if (EQ (key, QCscript)) | |
2422 | { | |
2423 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2424 | if (CONSP (val2)) |
2425 | { | |
2426 | val2 = XCDR (val2); | |
2427 | if (CONSP (val2)) | |
2428 | { | |
2429 | /* All characters in the list must be supported. */ | |
2430 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2431 | { | |
2432 | if (! NATNUMP (XCAR (val2))) | |
2433 | continue; | |
2434 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2435 | == FONT_INVALID_CODE) | |
2436 | return 0; | |
2437 | } | |
2438 | } | |
2439 | else if (VECTORP (val2)) | |
2440 | { | |
2441 | /* At most one character in the vector must be supported. */ | |
2442 | for (i = 0; i < ASIZE (val2); i++) | |
2443 | { | |
2444 | if (! NATNUMP (AREF (val2, i))) | |
2445 | continue; | |
2446 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2447 | != FONT_INVALID_CODE) | |
f5485732 | 2448 | break; |
5bdd4dd2 KH |
2449 | } |
2450 | if (i == ASIZE (val2)) | |
2451 | return 0; | |
2452 | } | |
2453 | } | |
51c13510 KH |
2454 | } |
2455 | else if (EQ (key, QCotf)) | |
2456 | { | |
2457 | struct font *fontp; | |
2458 | ||
2459 | if (! FONT_OBJECT_P (font)) | |
2460 | return 0; | |
2461 | fontp = XFONT_OBJECT (font); | |
2462 | if (! fontp->driver->otf_capability) | |
2463 | return 0; | |
2464 | val2 = fontp->driver->otf_capability (fontp); | |
2465 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2466 | return 0; | |
2467 | } | |
35027d0c KH |
2468 | } |
2469 | ||
51c13510 | 2470 | return 1; |
ef18374f | 2471 | } |
ca4da08a | 2472 | \f |
819e81df | 2473 | |
ca4da08a KH |
2474 | /* Font cache |
2475 | ||
2476 | Each font backend has the callback function get_cache, and it | |
2477 | returns a cons cell of which cdr part can be freely used for | |
2478 | caching fonts. The cons cell may be shared by multiple frames | |
2479 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2480 | ||
2481 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2482 | ||
2483 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2484 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2485 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2486 | ||
f57e2426 J |
2487 | static void font_prepare_cache (FRAME_PTR, struct font_driver *); |
2488 | static void font_finish_cache (FRAME_PTR, struct font_driver *); | |
2489 | static Lisp_Object font_get_cache (FRAME_PTR, struct font_driver *); | |
2490 | static void font_clear_cache (FRAME_PTR, Lisp_Object, | |
2491 | struct font_driver *); | |
ca4da08a KH |
2492 | |
2493 | static void | |
971de7fb | 2494 | font_prepare_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2495 | { |
2496 | Lisp_Object cache, val; | |
2497 | ||
2498 | cache = driver->get_cache (f); | |
2499 | val = XCDR (cache); | |
2500 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2501 | val = XCDR (val); | |
2502 | if (NILP (val)) | |
2503 | { | |
2504 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2505 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2506 | } | |
2507 | else | |
2508 | { | |
2509 | val = XCDR (XCAR (val)); | |
2510 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2511 | } | |
2512 | } | |
2513 | ||
43c0454d | 2514 | |
ca4da08a | 2515 | static void |
971de7fb | 2516 | font_finish_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2517 | { |
2518 | Lisp_Object cache, val, tmp; | |
2519 | ||
2520 | ||
2521 | cache = driver->get_cache (f); | |
2522 | val = XCDR (cache); | |
2523 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2524 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2525 | font_assert (! NILP (val)); |
ca4da08a | 2526 | tmp = XCDR (XCAR (val)); |
43c0454d | 2527 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2528 | if (XINT (XCAR (tmp)) == 0) |
2529 | { | |
2530 | font_clear_cache (f, XCAR (val), driver); | |
2531 | XSETCDR (cache, XCDR (val)); | |
2532 | } | |
ca4da08a KH |
2533 | } |
2534 | ||
43c0454d | 2535 | |
ca4da08a | 2536 | static Lisp_Object |
971de7fb | 2537 | font_get_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2538 | { |
2539 | Lisp_Object val = driver->get_cache (f); | |
2540 | Lisp_Object type = driver->type; | |
2541 | ||
d0ab1ebe | 2542 | font_assert (CONSP (val)); |
ca4da08a | 2543 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2544 | font_assert (CONSP (val)); |
ca4da08a KH |
2545 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2546 | val = XCDR (XCAR (val)); | |
2547 | return val; | |
2548 | } | |
2549 | ||
43c0454d KH |
2550 | static int num_fonts; |
2551 | ||
ca4da08a | 2552 | static void |
971de7fb | 2553 | font_clear_cache (FRAME_PTR f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2554 | { |
2555 | Lisp_Object tail, elt; | |
6136b72f | 2556 | Lisp_Object tail2, entity; |
51c01100 | 2557 | |
ca4da08a KH |
2558 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2559 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2560 | { | |
2561 | elt = XCAR (tail); | |
6136b72f CY |
2562 | /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */ |
2563 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
ca4da08a | 2564 | { |
6136b72f | 2565 | for (tail2 = XCDR (elt); CONSP (tail2); tail2 = XCDR (tail2)) |
ca4da08a | 2566 | { |
6136b72f | 2567 | entity = XCAR (tail2); |
ca4da08a | 2568 | |
6136b72f CY |
2569 | if (FONT_ENTITY_P (entity) |
2570 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2571 | { |
2572 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2573 | ||
2574 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2575 | { | |
2576 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2577 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2578 | |
5e634ec9 KH |
2579 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2580 | { | |
2581 | font_assert (font && driver == font->driver); | |
2582 | driver->close (f, font); | |
2583 | num_fonts--; | |
2584 | } | |
ca4da08a KH |
2585 | } |
2586 | if (driver->free_entity) | |
2587 | driver->free_entity (entity); | |
2588 | } | |
2589 | } | |
2590 | } | |
2591 | } | |
2592 | XSETCDR (cache, Qnil); | |
2593 | } | |
2594 | \f | |
2595 | ||
c2f5bfd6 KH |
2596 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2597 | ||
7d56b2dd KH |
2598 | /* Check each font-entity in VEC, and return a list of font-entities |
2599 | that satisfy this condition: | |
2600 | (1) matches with SPEC and SIZE if SPEC is not nil, and | |
2601 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2602 | */ | |
2603 | ||
7b81e2d0 | 2604 | static Lisp_Object |
971de7fb | 2605 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2606 | { |
d0ab1ebe | 2607 | Lisp_Object entity, val; |
35027d0c | 2608 | enum font_property_index prop; |
72d36834 | 2609 | int i; |
45eb10fb | 2610 | |
72d36834 | 2611 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2612 | { |
72d36834 | 2613 | entity = AREF (vec, i); |
7d56b2dd KH |
2614 | if (! NILP (Vface_ignored_fonts)) |
2615 | { | |
2616 | char name[256]; | |
2617 | Lisp_Object tail, regexp; | |
2618 | ||
2619 | if (font_unparse_xlfd (entity, 0, name, 256) >= 0) | |
2620 | { | |
2621 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2622 | { | |
2623 | regexp = XCAR (tail); | |
2624 | if (STRINGP (regexp) | |
2625 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
2626 | break; | |
2627 | } | |
2628 | if (CONSP (tail)) | |
2629 | continue; | |
2630 | } | |
2631 | } | |
2632 | if (NILP (spec)) | |
2633 | { | |
2634 | val = Fcons (entity, val); | |
2635 | continue; | |
2636 | } | |
35027d0c KH |
2637 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2638 | if (INTEGERP (AREF (spec, prop)) | |
2639 | && ((XINT (AREF (spec, prop)) >> 8) | |
2640 | != (XINT (AREF (entity, prop)) >> 8))) | |
2641 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2642 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2643 | && size |
2644 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2645 | { | |
2646 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2647 | |
35027d0c KH |
2648 | if (diff != 0 |
2649 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2650 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2651 | prop = FONT_SPEC_MAX; | |
2652 | } | |
7181ea6a KH |
2653 | if (prop < FONT_SPEC_MAX |
2654 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2655 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2656 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2657 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2658 | prop = FONT_SPEC_MAX; | |
2659 | if (prop < FONT_SPEC_MAX | |
2660 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2661 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2662 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2663 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2664 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2665 | prop = FONT_SPEC_MAX; | |
35027d0c | 2666 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2667 | val = Fcons (entity, val); |
35027d0c | 2668 | } |
72d36834 | 2669 | return (Fvconcat (1, &val)); |
35027d0c KH |
2670 | } |
2671 | ||
2672 | ||
72d36834 | 2673 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2674 | FRAME. Each elements in the list is a vector of entities from the |
2675 | same font-driver. */ | |
35027d0c KH |
2676 | |
2677 | Lisp_Object | |
971de7fb | 2678 | font_list_entities (Lisp_Object frame, Lisp_Object spec) |
c2f5bfd6 KH |
2679 | { |
2680 | FRAME_PTR f = XFRAME (frame); | |
2681 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2682 | Lisp_Object ftype, val; |
72d36834 | 2683 | Lisp_Object list = Qnil; |
35027d0c KH |
2684 | int size; |
2685 | int need_filtering = 0; | |
c2f5bfd6 KH |
2686 | int i; |
2687 | ||
d0ab1ebe | 2688 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2689 | |
35027d0c KH |
2690 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2691 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2692 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2693 | size = font_pixel_size (f, spec); | |
2694 | else | |
2695 | size = 0; | |
2696 | ||
c2f5bfd6 | 2697 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2698 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2699 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2700 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
56201685 PE |
2701 | if (i != FONT_SPACING_INDEX) |
2702 | { | |
2703 | ASET (scratch_font_spec, i, Qnil); | |
2704 | if (! NILP (AREF (spec, i))) | |
2705 | need_filtering = 1; | |
2706 | } | |
aa50ca2f | 2707 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2708 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2709 | ||
c2f5bfd6 | 2710 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2711 | if (driver_list->on |
2712 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2713 | { |
ca4da08a | 2714 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2715 | |
e4c93315 | 2716 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2717 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2718 | if (CONSP (val)) | |
2719 | val = XCDR (val); | |
2720 | else | |
c2f5bfd6 | 2721 | { |
4007dd1c | 2722 | Lisp_Object copy; |
35027d0c | 2723 | |
4007dd1c | 2724 | val = driver_list->driver->list (frame, scratch_font_spec); |
72d36834 KH |
2725 | if (NILP (val)) |
2726 | val = null_vector; | |
2727 | else | |
2728 | val = Fvconcat (1, &val); | |
92470028 | 2729 | copy = copy_font_spec (scratch_font_spec); |
4007dd1c KH |
2730 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2731 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2732 | } |
7d56b2dd KH |
2733 | if (ASIZE (val) > 0 |
2734 | && (need_filtering | |
2735 | || ! NILP (Vface_ignored_fonts))) | |
2736 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2737 | if (ASIZE (val) > 0) |
2738 | list = Fcons (val, list); | |
c2f5bfd6 | 2739 | } |
35027d0c | 2740 | |
72d36834 KH |
2741 | list = Fnreverse (list); |
2742 | FONT_ADD_LOG ("list", spec, list); | |
2743 | return list; | |
c2f5bfd6 KH |
2744 | } |
2745 | ||
45eb10fb | 2746 | |
35027d0c KH |
2747 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2748 | nil, is an array of face's attributes, which specifies preferred | |
2749 | font-related attributes. */ | |
45eb10fb | 2750 | |
e950d6f1 | 2751 | static Lisp_Object |
971de7fb | 2752 | font_matching_entity (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2753 | { |
e950d6f1 KH |
2754 | struct font_driver_list *driver_list = f->font_driver_list; |
2755 | Lisp_Object ftype, size, entity; | |
35027d0c | 2756 | Lisp_Object frame; |
92470028 | 2757 | Lisp_Object work = copy_font_spec (spec); |
e950d6f1 | 2758 | |
35027d0c | 2759 | XSETFRAME (frame, f); |
e950d6f1 KH |
2760 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2761 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2762 | |
8d0e382e AR |
2763 | if (FLOATP (size)) |
2764 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2765 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2766 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2767 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2768 | ||
e950d6f1 KH |
2769 | entity = Qnil; |
2770 | for (; driver_list; driver_list = driver_list->next) | |
2771 | if (driver_list->on | |
2772 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2773 | { | |
ca4da08a | 2774 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2775 | Lisp_Object copy; |
e950d6f1 | 2776 | |
819ab95f KH |
2777 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2778 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2779 | if (CONSP (entity)) |
e950d6f1 KH |
2780 | entity = XCDR (entity); |
2781 | else | |
2782 | { | |
819ab95f | 2783 | entity = driver_list->driver->match (frame, work); |
92470028 | 2784 | copy = copy_font_spec (work); |
7cee5d63 KH |
2785 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2786 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2787 | } |
2788 | if (! NILP (entity)) | |
2789 | break; | |
2790 | } | |
652b9560 | 2791 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2792 | return entity; |
2793 | } | |
2794 | ||
45eb10fb KH |
2795 | |
2796 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2797 | opened font object. */ | |
2798 | ||
c2f5bfd6 | 2799 | static Lisp_Object |
971de7fb | 2800 | font_open_entity (FRAME_PTR f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2801 | { |
2802 | struct font_driver_list *driver_list; | |
43c0454d | 2803 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2804 | struct font *font; |
d26424c5 | 2805 | int min_width, height; |
dbc05432 | 2806 | int scaled_pixel_size = pixel_size; |
c2f5bfd6 | 2807 | |
d0ab1ebe | 2808 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2809 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2810 | if (XINT (size) != 0) |
a35dd56b | 2811 | scaled_pixel_size = pixel_size = XINT (size); |
55e41770 | 2812 | else if (CONSP (Vface_font_rescale_alist)) |
a35dd56b | 2813 | scaled_pixel_size = pixel_size * font_rescale_ratio (entity); |
c2f5bfd6 | 2814 | |
35027d0c KH |
2815 | val = AREF (entity, FONT_TYPE_INDEX); |
2816 | for (driver_list = f->font_driver_list; | |
2817 | driver_list && ! EQ (driver_list->driver->type, val); | |
2818 | driver_list = driver_list->next); | |
2819 | if (! driver_list) | |
2820 | return Qnil; | |
c2f5bfd6 | 2821 | |
d0cf45b7 JD |
2822 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2823 | objlist = XCDR (objlist)) | |
2824 | { | |
2825 | Lisp_Object fn = XCAR (objlist); | |
2826 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2827 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2828 | { | |
2829 | if (driver_list->driver->cached_font_ok == NULL | |
2830 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2831 | return fn; | |
2832 | } | |
2833 | } | |
2834 | ||
a35dd56b | 2835 | font_object = driver_list->driver->open (f, entity, scaled_pixel_size); |
66f5ced0 YM |
2836 | if (!NILP (font_object)) |
2837 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2838 | FONT_ADD_LOG ("open", entity, font_object); |
43c0454d | 2839 | if (NILP (font_object)) |
35027d0c KH |
2840 | return Qnil; |
2841 | ASET (entity, FONT_OBJLIST_INDEX, | |
2842 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2843 | num_fonts++; |
2844 | ||
2845 | font = XFONT_OBJECT (font_object); | |
2846 | min_width = (font->min_width ? font->min_width | |
2847 | : font->average_width ? font->average_width | |
2848 | : font->space_width ? font->space_width | |
2849 | : 1); | |
d26424c5 | 2850 | height = (font->height ? font->height : 1); |
819e81df | 2851 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2852 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2853 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2854 | { |
35027d0c | 2855 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2856 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
35027d0c KH |
2857 | fonts_changed_p = 1; |
2858 | } | |
2859 | else | |
2860 | { | |
2861 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2862 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
d26424c5 KH |
2863 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
2864 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, fonts_changed_p = 1; | |
43c0454d | 2865 | } |
819e81df | 2866 | #endif |
43c0454d KH |
2867 | |
2868 | return font_object; | |
c2f5bfd6 KH |
2869 | } |
2870 | ||
45eb10fb KH |
2871 | |
2872 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2873 | ||
239f9db9 | 2874 | static void |
971de7fb | 2875 | font_close_object (FRAME_PTR f, Lisp_Object font_object) |
c2f5bfd6 | 2876 | { |
35027d0c | 2877 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2878 | |
5e634ec9 KH |
2879 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2880 | /* Already closed. */ | |
2881 | return; | |
652b9560 | 2882 | FONT_ADD_LOG ("close", font_object, Qnil); |
5e634ec9 | 2883 | font->driver->close (f, font); |
819e81df | 2884 | #ifdef HAVE_WINDOW_SYSTEM |
5e634ec9 KH |
2885 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2886 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2887 | #endif |
5e634ec9 | 2888 | num_fonts--; |
c2f5bfd6 KH |
2889 | } |
2890 | ||
45eb10fb | 2891 | |
1701724c KH |
2892 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2893 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2894 | |
c2f5bfd6 | 2895 | int |
971de7fb | 2896 | font_has_char (FRAME_PTR f, Lisp_Object font, int c) |
c2f5bfd6 | 2897 | { |
1b834a8d | 2898 | struct font *fontp; |
c2f5bfd6 | 2899 | |
1b834a8d KH |
2900 | if (FONT_ENTITY_P (font)) |
2901 | { | |
2902 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2903 | struct font_driver_list *driver_list; | |
2904 | ||
2905 | for (driver_list = f->font_driver_list; | |
2906 | driver_list && ! EQ (driver_list->driver->type, type); | |
2907 | driver_list = driver_list->next); | |
2908 | if (! driver_list) | |
2909 | return 0; | |
2910 | if (! driver_list->driver->has_char) | |
2911 | return -1; | |
2912 | return driver_list->driver->has_char (font, c); | |
2913 | } | |
2914 | ||
d0ab1ebe | 2915 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 2916 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2917 | if (fontp->driver->has_char) |
2918 | { | |
35027d0c | 2919 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2920 | |
2921 | if (result >= 0) | |
2922 | return result; | |
2923 | } | |
2924 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2925 | } |
2926 | ||
45eb10fb KH |
2927 | |
2928 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2929 | ||
2f7c71a1 | 2930 | static unsigned |
971de7fb | 2931 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 2932 | { |
35027d0c | 2933 | struct font *font; |
c2f5bfd6 | 2934 | |
d0ab1ebe | 2935 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2936 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2937 | return font->driver->encode_char (font, c); |
2938 | } | |
2939 | ||
45eb10fb KH |
2940 | |
2941 | /* Return the name of FONT_OBJECT. */ | |
2942 | ||
ef18374f | 2943 | Lisp_Object |
971de7fb | 2944 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 2945 | { |
d0ab1ebe | 2946 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2947 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2948 | } |
2949 | ||
45eb10fb | 2950 | |
05802645 CY |
2951 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME |
2952 | could not be parsed by font_parse_name, return Qnil. */ | |
2953 | ||
35027d0c | 2954 | Lisp_Object |
971de7fb | 2955 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 2956 | { |
05802645 | 2957 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 2958 | |
05802645 | 2959 | CHECK_STRING (font_name); |
51b59d79 | 2960 | if (font_parse_name (SSDATA (font_name), spec) == -1) |
05802645 CY |
2961 | return Qnil; |
2962 | font_put_extra (spec, QCname, font_name); | |
42707278 | 2963 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 2964 | return spec; |
35027d0c KH |
2965 | } |
2966 | ||
45eb10fb | 2967 | |
35027d0c | 2968 | void |
971de7fb | 2969 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
2970 | { |
2971 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 2972 | |
35027d0c KH |
2973 | if (! FONTP (font)) |
2974 | return; | |
42707278 | 2975 | |
483670b5 KH |
2976 | if (! NILP (Ffont_get (font, QCname))) |
2977 | { | |
92470028 | 2978 | font = copy_font_spec (font); |
483670b5 KH |
2979 | font_put_extra (font, QCname, Qnil); |
2980 | } | |
2981 | ||
35027d0c | 2982 | if (NILP (AREF (font, prop)) |
e234927a CY |
2983 | && prop != FONT_FAMILY_INDEX |
2984 | && prop != FONT_FOUNDRY_INDEX | |
2985 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 2986 | && prop != FONT_SIZE_INDEX) |
35027d0c | 2987 | return; |
483670b5 | 2988 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
92470028 | 2989 | font = copy_font_spec (font); |
35027d0c | 2990 | ASET (font, prop, Qnil); |
4007dd1c | 2991 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 2992 | { |
4007dd1c | 2993 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
2994 | { |
2995 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
2996 | /* If we are setting the font family, we must also clear | |
2997 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
2998 | support for some widths. */ | |
2999 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
3000 | } | |
35027d0c | 3001 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3002 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3003 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3004 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3005 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3006 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3007 | } | |
3008 | else if (prop == FONT_SIZE_INDEX) | |
3009 | { | |
3010 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3011 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3012 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3013 | } | |
e234927a CY |
3014 | else if (prop == FONT_WIDTH_INDEX) |
3015 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3016 | attrs[LFACE_FONT_INDEX] = font; |
3017 | } | |
3018 | ||
72d36834 KH |
3019 | /* Selecte a font from ENTITIES (list of font-entity vectors) that |
3020 | supports C and matches best with ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
3021 | |
3022 | static Lisp_Object | |
971de7fb | 3023 | font_select_entity (Lisp_Object frame, Lisp_Object entities, Lisp_Object *attrs, int pixel_size, int c) |
988a7ddb KH |
3024 | { |
3025 | Lisp_Object font_entity; | |
3026 | Lisp_Object prefer; | |
988a7ddb KH |
3027 | int result, i; |
3028 | FRAME_PTR f = XFRAME (frame); | |
3029 | ||
72d36834 KH |
3030 | if (NILP (XCDR (entities)) |
3031 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 3032 | { |
72d36834 | 3033 | font_entity = AREF (XCAR (entities), 0); |
988a7ddb KH |
3034 | if (c < 0 |
3035 | || (result = font_has_char (f, font_entity, c)) > 0) | |
3036 | return font_entity; | |
3037 | return Qnil; | |
3038 | } | |
3039 | ||
3040 | /* Sort fonts by properties specified in ATTRS. */ | |
3041 | prefer = scratch_font_prefer; | |
3042 | ||
3043 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3044 | ASET (prefer, i, Qnil); | |
3045 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3046 | { | |
3047 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3048 | ||
3049 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3050 | ASET (prefer, i, AREF (face_font, i)); | |
3051 | } | |
3052 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3053 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3054 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3055 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3056 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3057 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3058 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3059 | |
2645d15b | 3060 | return font_sort_entities (entities, prefer, frame, c); |
988a7ddb KH |
3061 | } |
3062 | ||
35027d0c KH |
3063 | /* Return a font-entity satisfying SPEC and best matching with face's |
3064 | font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3065 | character that the entity must support. */ |
c2f5bfd6 KH |
3066 | |
3067 | Lisp_Object | |
971de7fb | 3068 | font_find_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3069 | { |
4007dd1c | 3070 | Lisp_Object work; |
72d36834 | 3071 | Lisp_Object frame, entities, val; |
78834453 | 3072 | Lisp_Object foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3073 | int pixel_size; |
72d36834 | 3074 | int i, j, k, l; |
d0a47776 KH |
3075 | |
3076 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3077 | if (NILP (registry[0])) | |
3078 | { | |
edfda783 | 3079 | registry[0] = DEFAULT_ENCODING; |
d0a47776 KH |
3080 | registry[1] = Qascii_0; |
3081 | registry[2] = null_vector; | |
3082 | } | |
3083 | else | |
3084 | registry[1] = null_vector; | |
c2f5bfd6 | 3085 | |
4007dd1c | 3086 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3087 | { |
35027d0c | 3088 | struct charset *encoding, *repertory; |
1701724c | 3089 | |
4007dd1c KH |
3090 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3091 | &encoding, &repertory) < 0) | |
35027d0c | 3092 | return Qnil; |
72d36834 KH |
3093 | if (repertory |
3094 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3095 | return Qnil; | |
35027d0c KH |
3096 | else if (c > encoding->max_char) |
3097 | return Qnil; | |
c2f5bfd6 KH |
3098 | } |
3099 | ||
92470028 | 3100 | work = copy_font_spec (spec); |
227f12fa | 3101 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
35027d0c | 3102 | XSETFRAME (frame, f); |
1d1e1245 | 3103 | pixel_size = font_pixel_size (f, spec); |
dbc05432 | 3104 | if (pixel_size == 0 && INTEGERP (attrs[LFACE_HEIGHT_INDEX])) |
1d1e1245 KH |
3105 | { |
3106 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3107 | ||
3108 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
3109 | } | |
4007dd1c KH |
3110 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3111 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3112 | if (! NILP (foundry[0])) | |
3113 | foundry[1] = null_vector; | |
3114 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
3115 | { | |
071132a9 | 3116 | val = attrs[LFACE_FOUNDRY_INDEX]; |
51b59d79 | 3117 | foundry[0] = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
4007dd1c KH |
3118 | foundry[1] = Qnil; |
3119 | foundry[2] = null_vector; | |
3120 | } | |
3121 | else | |
3122 | foundry[0] = Qnil, foundry[1] = null_vector; | |
3123 | ||
22459668 KH |
3124 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3125 | if (! NILP (adstyle[0])) | |
3126 | adstyle[1] = null_vector; | |
3127 | else if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3128 | { | |
3129 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3130 | ||
3131 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3132 | { | |
3133 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3134 | adstyle[1] = Qnil; | |
3135 | adstyle[2] = null_vector; | |
3136 | } | |
3137 | else | |
3138 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3139 | } | |
3140 | else | |
3141 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3142 | ||
3143 | ||
4007dd1c KH |
3144 | val = AREF (work, FONT_FAMILY_INDEX); |
3145 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3146 | { |
3147 | val = attrs[LFACE_FAMILY_INDEX]; | |
51b59d79 | 3148 | val = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
071132a9 | 3149 | } |
4007dd1c KH |
3150 | if (NILP (val)) |
3151 | { | |
3152 | family = alloca ((sizeof family[0]) * 2); | |
3153 | family[0] = Qnil; | |
3154 | family[1] = null_vector; /* terminator. */ | |
3155 | } | |
3156 | else | |
3157 | { | |
3158 | Lisp_Object alters | |
819ab95f | 3159 | = Fassoc_string (val, Vface_alternative_font_family_alist, |
7107c29e | 3160 | /* Font family names are case-sensitive under NS. */ |
819ab95f KH |
3161 | #ifndef HAVE_NS |
3162 | Qt | |
3163 | #else | |
3164 | Qnil | |
3165 | #endif | |
3166 | ); | |
4007dd1c KH |
3167 | |
3168 | if (! NILP (alters)) | |
3169 | { | |
3170 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
3171 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
3172 | family[i] = XCAR (alters); | |
3173 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3174 | family[i++] = Qnil; | |
3175 | family[i] = null_vector; | |
3176 | } | |
3177 | else | |
3178 | { | |
3179 | family = alloca ((sizeof family[0]) * 3); | |
3180 | i = 0; | |
3181 | family[i++] = val; | |
3182 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3183 | family[i++] = Qnil; | |
3184 | family[i] = null_vector; | |
3185 | } | |
3186 | } | |
3187 | ||
d0a47776 | 3188 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3189 | { |
d0a47776 KH |
3190 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3191 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3192 | { |
d0a47776 KH |
3193 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3194 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3195 | { | |
904a2e0e | 3196 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3197 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3198 | { | |
3199 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
3200 | entities = font_list_entities (frame, work); | |
72d36834 | 3201 | if (! NILP (entities)) |
988a7ddb KH |
3202 | { |
3203 | val = font_select_entity (frame, entities, | |
3204 | attrs, pixel_size, c); | |
3205 | if (! NILP (val)) | |
637fa988 | 3206 | return val; |
988a7ddb | 3207 | } |
22459668 | 3208 | } |
d0a47776 | 3209 | } |
4007dd1c | 3210 | } |
4007dd1c | 3211 | } |
d0a47776 | 3212 | return Qnil; |
1701724c | 3213 | } |
45eb10fb KH |
3214 | |
3215 | ||
c2f5bfd6 | 3216 | Lisp_Object |
971de7fb | 3217 | font_open_for_lface (FRAME_PTR f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3218 | { |
9331887d | 3219 | int size; |
c2f5bfd6 | 3220 | |
4007dd1c KH |
3221 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3222 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3223 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3224 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3225 | size = font_pixel_size (f, spec); |
733fd013 KH |
3226 | else |
3227 | { | |
50b0cd29 CY |
3228 | double pt; |
3229 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3230 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3231 | else | |
3232 | { | |
3233 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3234 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3235 | if (INTEGERP (height)) | |
3236 | pt = XINT (height); | |
3237 | else | |
3238 | abort(); /* We should never end up here. */ | |
3239 | } | |
733fd013 KH |
3240 | |
3241 | pt /= 10; | |
3242 | size = POINT_TO_PIXEL (pt, f->resy); | |
ed96cde8 AR |
3243 | #ifdef HAVE_NS |
3244 | if (size == 0) | |
3245 | { | |
3246 | Lisp_Object ffsize = get_frame_param(f, Qfontsize); | |
3247 | size = NUMBERP (ffsize) ? POINT_TO_PIXEL (XINT (ffsize), f->resy) : 0; | |
3248 | } | |
3249 | #endif | |
733fd013 | 3250 | } |
c2f5bfd6 KH |
3251 | return font_open_entity (f, entity, size); |
3252 | } | |
3253 | ||
45eb10fb | 3254 | |
35027d0c KH |
3255 | /* Find a font satisfying SPEC and best matching with face's |
3256 | attributes in ATTRS on FRAME, and return the opened | |
3257 | font-object. */ | |
45eb10fb | 3258 | |
35027d0c | 3259 | Lisp_Object |
971de7fb | 3260 | font_load_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3261 | { |
637fa988 | 3262 | Lisp_Object entity, name; |
ef18374f | 3263 | |
908567ef | 3264 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3265 | if (NILP (entity)) |
ef18374f | 3266 | { |
35027d0c KH |
3267 | /* No font is listed for SPEC, but each font-backend may have |
3268 | the different criteria about "font matching". So, try | |
3269 | it. */ | |
3270 | entity = font_matching_entity (f, attrs, spec); | |
3271 | if (NILP (entity)) | |
3272 | return Qnil; | |
c2f5bfd6 | 3273 | } |
537b04b9 | 3274 | /* Don't lose the original name that was put in initially. We need |
637fa988 JD |
3275 | it to re-apply the font when font parameters (like hinting or dpi) have |
3276 | changed. */ | |
3277 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3278 | if (!NILP (entity)) |
3279 | { | |
42707278 JD |
3280 | name = Ffont_get (spec, QCuser_spec); |
3281 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3282 | } |
637fa988 | 3283 | return entity; |
c2f5bfd6 KH |
3284 | } |
3285 | ||
45eb10fb KH |
3286 | |
3287 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3288 | ||
c2f5bfd6 | 3289 | void |
971de7fb | 3290 | font_prepare_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3291 | { |
35027d0c KH |
3292 | if (face->font->driver->prepare_face) |
3293 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3294 | } |
3295 | ||
45eb10fb KH |
3296 | |
3297 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3298 | ||
c2f5bfd6 | 3299 | void |
971de7fb | 3300 | font_done_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3301 | { |
35027d0c KH |
3302 | if (face->font->driver->done_face) |
3303 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3304 | face->extra = NULL; |
3305 | } | |
3306 | ||
45eb10fb | 3307 | |
c50b7e98 KH |
3308 | /* Open a font matching with font-spec SPEC on frame F. If no proper |
3309 | font is found, return Qnil. */ | |
45eb10fb | 3310 | |
c2f5bfd6 | 3311 | Lisp_Object |
971de7fb | 3312 | font_open_by_spec (FRAME_PTR f, Lisp_Object spec) |
c2f5bfd6 | 3313 | { |
c50b7e98 | 3314 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3315 | |
4007dd1c KH |
3316 | /* We set up the default font-related attributes of a face to prefer |
3317 | a moderate font. */ | |
3318 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3319 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3320 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3321 | #ifndef HAVE_NS |
4007dd1c | 3322 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3323 | #else |
3324 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3325 | #endif | |
4007dd1c KH |
3326 | attrs[LFACE_FONT_INDEX] = Qnil; |
3327 | ||
3328 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3329 | } |
3330 | ||
3331 | ||
c50b7e98 KH |
3332 | /* Open a font matching with NAME on frame F. If no proper font is |
3333 | found, return Qnil. */ | |
3334 | ||
3335 | Lisp_Object | |
42ca4633 | 3336 | font_open_by_name (FRAME_PTR f, const char *name) |
c50b7e98 KH |
3337 | { |
3338 | Lisp_Object args[2]; | |
581e51e8 | 3339 | Lisp_Object spec, ret; |
c50b7e98 KH |
3340 | |
3341 | args[0] = QCname; | |
3342 | args[1] = make_unibyte_string (name, strlen (name)); | |
3343 | spec = Ffont_spec (2, args); | |
581e51e8 | 3344 | ret = font_open_by_spec (f, spec); |
537b04b9 | 3345 | /* Do not lose name originally put in. */ |
8096a0ff | 3346 | if (!NILP (ret)) |
42707278 | 3347 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3348 | |
3349 | return ret; | |
c50b7e98 KH |
3350 | } |
3351 | ||
3352 | ||
c2f5bfd6 KH |
3353 | /* Register font-driver DRIVER. This function is used in two ways. |
3354 | ||
417a1b10 KH |
3355 | The first is with frame F non-NULL. In this case, make DRIVER |
3356 | available (but not yet activated) on F. All frame creaters | |
3357 | (e.g. Fx_create_frame) must call this function at least once with | |
3358 | an available font-driver. | |
c2f5bfd6 KH |
3359 | |
3360 | The second is with frame F NULL. In this case, DRIVER is globally | |
3361 | registered in the variable `font_driver_list'. All font-driver | |
3362 | implementations must call this function in its syms_of_XXXX | |
3363 | (e.g. syms_of_xfont). */ | |
3364 | ||
3365 | void | |
971de7fb | 3366 | register_font_driver (struct font_driver *driver, FRAME_PTR f) |
c2f5bfd6 KH |
3367 | { |
3368 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3369 | struct font_driver_list *prev, *list; | |
3370 | ||
3371 | if (f && ! driver->draw) | |
43a1d19b | 3372 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3373 | SDATA (SYMBOL_NAME (driver->type))); |
3374 | ||
3375 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3376 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3377 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3378 | ||
c115043b | 3379 | list = xmalloc (sizeof (struct font_driver_list)); |
417a1b10 | 3380 | list->on = 0; |
c2f5bfd6 KH |
3381 | list->driver = driver; |
3382 | list->next = NULL; | |
3383 | if (prev) | |
3384 | prev->next = list; | |
3385 | else if (f) | |
3386 | f->font_driver_list = list; | |
3387 | else | |
3388 | font_driver_list = list; | |
72606e45 KH |
3389 | if (! f) |
3390 | num_font_drivers++; | |
c2f5bfd6 KH |
3391 | } |
3392 | ||
2ed98482 | 3393 | void |
971de7fb | 3394 | free_font_driver_list (FRAME_PTR f) |
2ed98482 CY |
3395 | { |
3396 | struct font_driver_list *list, *next; | |
3397 | ||
3398 | for (list = f->font_driver_list; list; list = next) | |
3399 | { | |
3400 | next = list->next; | |
3401 | xfree (list); | |
3402 | } | |
3403 | f->font_driver_list = NULL; | |
3404 | } | |
3405 | ||
45eb10fb | 3406 | |
f697fff0 | 3407 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3408 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3409 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3410 | |
ca4da08a KH |
3411 | A caller must free all realized faces if any in advance. The |
3412 | return value is a list of font backends actually made used on | |
3413 | F. */ | |
e950d6f1 KH |
3414 | |
3415 | Lisp_Object | |
971de7fb | 3416 | font_update_drivers (FRAME_PTR f, Lisp_Object new_drivers) |
417a1b10 KH |
3417 | { |
3418 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
3419 | struct font_driver_list *list; |
3420 | ||
4007dd1c KH |
3421 | /* At first, turn off non-requested drivers, and turn on requested |
3422 | drivers. */ | |
f697fff0 | 3423 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c | 3424 | { |
13a547c6 | 3425 | struct font_driver *driver = list->driver; |
4007dd1c KH |
3426 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) |
3427 | != list->on) | |
3428 | { | |
3429 | if (list->on) | |
3430 | { | |
3431 | if (driver->end_for_frame) | |
3432 | driver->end_for_frame (f); | |
3433 | font_finish_cache (f, driver); | |
3434 | list->on = 0; | |
3435 | } | |
3436 | else | |
3437 | { | |
3438 | if (! driver->start_for_frame | |
3439 | || driver->start_for_frame (f) == 0) | |
3440 | { | |
3441 | font_prepare_cache (f, driver); | |
3442 | list->on = 1; | |
3443 | } | |
3444 | } | |
3445 | } | |
3446 | } | |
3447 | ||
3448 | if (NILP (new_drivers)) | |
3449 | return Qnil; | |
3450 | ||
3451 | if (! EQ (new_drivers, Qt)) | |
3452 | { | |
3453 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3454 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3455 | Lisp_Object tail; |
3456 | int i; | |
3457 | ||
3458 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3459 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3460 | { | |
3461 | for (list = f->font_driver_list; list; list = list->next) | |
3462 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3463 | break; | |
3464 | if (list) | |
3465 | list_table[i++] = list; | |
3466 | } | |
3467 | for (list = f->font_driver_list; list; list = list->next) | |
3468 | if (! list->on) | |
6136b72f | 3469 | list_table[i++] = list; |
4007dd1c KH |
3470 | list_table[i] = NULL; |
3471 | ||
3306c6dc | 3472 | next = &f->font_driver_list; |
4007dd1c KH |
3473 | for (i = 0; list_table[i]; i++) |
3474 | { | |
3306c6dc AS |
3475 | *next = list_table[i]; |
3476 | next = &(*next)->next; | |
4007dd1c | 3477 | } |
3306c6dc | 3478 | *next = NULL; |
ba98e3a0 SM |
3479 | |
3480 | if (! f->font_driver_list->on) | |
3481 | { /* None of the drivers is enabled: enable them all. | |
3482 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3483 | and then use it under w32 or ns. */ | |
3484 | for (list = f->font_driver_list; list; list = list->next) | |
3485 | { | |
3486 | struct font_driver *driver = list->driver; | |
3487 | eassert (! list->on); | |
3488 | if (! driver->start_for_frame | |
3489 | || driver->start_for_frame (f) == 0) | |
3490 | { | |
3491 | font_prepare_cache (f, driver); | |
3492 | list->on = 1; | |
3493 | } | |
3494 | } | |
3495 | } | |
4007dd1c | 3496 | } |
417a1b10 | 3497 | |
4007dd1c KH |
3498 | for (list = f->font_driver_list; list; list = list->next) |
3499 | if (list->on) | |
3500 | active_drivers = nconc2 (active_drivers, | |
3501 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3502 | return active_drivers; |
417a1b10 KH |
3503 | } |
3504 | ||
f697fff0 | 3505 | int |
971de7fb | 3506 | font_put_frame_data (FRAME_PTR f, struct font_driver *driver, void *data) |
f697fff0 KH |
3507 | { |
3508 | struct font_data_list *list, *prev; | |
3509 | ||
3510 | for (prev = NULL, list = f->font_data_list; list; | |
3511 | prev = list, list = list->next) | |
3512 | if (list->driver == driver) | |
3513 | break; | |
3514 | if (! data) | |
3515 | { | |
3516 | if (list) | |
3517 | { | |
3518 | if (prev) | |
3519 | prev->next = list->next; | |
3520 | else | |
3521 | f->font_data_list = list->next; | |
973e7849 | 3522 | xfree (list); |
f697fff0 KH |
3523 | } |
3524 | return 0; | |
3525 | } | |
3526 | ||
3527 | if (! list) | |
3528 | { | |
c115043b | 3529 | list = xmalloc (sizeof (struct font_data_list)); |
f697fff0 KH |
3530 | list->driver = driver; |
3531 | list->next = f->font_data_list; | |
3532 | f->font_data_list = list; | |
3533 | } | |
3534 | list->data = data; | |
3535 | return 0; | |
3536 | } | |
3537 | ||
3538 | ||
3539 | void * | |
971de7fb | 3540 | font_get_frame_data (FRAME_PTR f, struct font_driver *driver) |
f697fff0 KH |
3541 | { |
3542 | struct font_data_list *list; | |
3543 | ||
3544 | for (list = f->font_data_list; list; list = list->next) | |
3545 | if (list->driver == driver) | |
3546 | break; | |
3547 | if (! list) | |
3548 | return NULL; | |
3549 | return list->data; | |
3550 | } | |
3551 | ||
417a1b10 | 3552 | |
9fa82824 DP |
3553 | /* Sets attributes on a font. Any properties that appear in ALIST and |
3554 | BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font. | |
3555 | BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated | |
3556 | arrays of strings. This function is intended for use by the font | |
3557 | drivers to implement their specific font_filter_properties. */ | |
3558 | void | |
220d91b8 JB |
3559 | font_filter_properties (Lisp_Object font, |
3560 | Lisp_Object alist, | |
3106121c YM |
3561 | const char *const boolean_properties[], |
3562 | const char *const non_boolean_properties[]) | |
9fa82824 DP |
3563 | { |
3564 | Lisp_Object it; | |
3565 | int i; | |
3566 | ||
3567 | /* Set boolean values to Qt or Qnil */ | |
3568 | for (i = 0; boolean_properties[i] != NULL; ++i) | |
3569 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3570 | { | |
3571 | Lisp_Object key = XCAR (XCAR (it)); | |
3572 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3573 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3574 | |
3575 | if (strcmp (boolean_properties[i], keystr) == 0) | |
3576 | { | |
3577 | const char *str = INTEGERP (val) ? (XINT (val) ? "true" : "false") | |
51b59d79 | 3578 | : SYMBOLP (val) ? SSDATA (SYMBOL_NAME (val)) |
9fa82824 DP |
3579 | : "true"; |
3580 | ||
3581 | if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0 | |
3582 | || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0 | |
3583 | || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0 | |
3584 | || strcmp ("Off", str) == 0) | |
3585 | val = Qnil; | |
3586 | else | |
3587 | val = Qt; | |
3588 | ||
3589 | Ffont_put (font, key, val); | |
3590 | } | |
3591 | } | |
3592 | ||
3593 | for (i = 0; non_boolean_properties[i] != NULL; ++i) | |
3594 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3595 | { | |
3596 | Lisp_Object key = XCAR (XCAR (it)); | |
3597 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3598 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3599 | if (strcmp (non_boolean_properties[i], keystr) == 0) |
3600 | Ffont_put (font, key, val); | |
3601 | } | |
3602 | } | |
3603 | ||
3604 | ||
45eb10fb | 3605 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3606 | POS in window W. If STRING is non-nil, it is a string containing C |
3607 | at index POS. If C is negative, get C from the current buffer or | |
3608 | STRING. */ | |
45eb10fb | 3609 | |
2f7c71a1 AS |
3610 | static Lisp_Object |
3611 | font_at (int c, EMACS_INT pos, struct face *face, struct window *w, | |
3612 | Lisp_Object string) | |
10d16101 KH |
3613 | { |
3614 | FRAME_PTR f; | |
e3ee0340 | 3615 | int multibyte; |
35027d0c | 3616 | Lisp_Object font_object; |
e3ee0340 | 3617 | |
e500c47d | 3618 | multibyte = (NILP (string) |
4b4deea2 | 3619 | ? ! NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e500c47d | 3620 | : STRING_MULTIBYTE (string)); |
e3ee0340 KH |
3621 | if (c < 0) |
3622 | { | |
3623 | if (NILP (string)) | |
3624 | { | |
e3ee0340 KH |
3625 | if (multibyte) |
3626 | { | |
3627 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3628 | ||
3629 | c = FETCH_CHAR (pos_byte); | |
3630 | } | |
3631 | else | |
3632 | c = FETCH_BYTE (pos); | |
3633 | } | |
3634 | else | |
3635 | { | |
3636 | unsigned char *str; | |
3637 | ||
3638 | multibyte = STRING_MULTIBYTE (string); | |
3639 | if (multibyte) | |
3640 | { | |
3641 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3642 | ||
3643 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3644 | c = STRING_CHAR (str); |
e3ee0340 KH |
3645 | } |
3646 | else | |
3647 | c = SDATA (string)[pos]; | |
3648 | } | |
3649 | } | |
10d16101 KH |
3650 | |
3651 | f = XFRAME (w->frame); | |
1385a806 KH |
3652 | if (! FRAME_WINDOW_P (f)) |
3653 | return Qnil; | |
10d16101 KH |
3654 | if (! face) |
3655 | { | |
e3ee0340 | 3656 | int face_id; |
0f8b27ea | 3657 | EMACS_INT endptr; |
e3ee0340 KH |
3658 | |
3659 | if (STRINGP (string)) | |
3660 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3661 | DEFAULT_FACE_ID, 0); |
3662 | else | |
e3ee0340 | 3663 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
6970f632 | 3664 | pos + 100, 0, -1); |
10d16101 KH |
3665 | face = FACE_FROM_ID (f, face_id); |
3666 | } | |
e3ee0340 KH |
3667 | if (multibyte) |
3668 | { | |
3669 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3670 | face = FACE_FROM_ID (f, face_id); | |
3671 | } | |
35027d0c | 3672 | if (! face->font) |
10d16101 | 3673 | return Qnil; |
35027d0c | 3674 | |
35027d0c KH |
3675 | XSETFONT (font_object, face->font); |
3676 | return font_object; | |
3677 | } | |
3678 | ||
3679 | ||
071132a9 KH |
3680 | #ifdef HAVE_WINDOW_SYSTEM |
3681 | ||
3682 | /* Check how many characters after POS (at most to *LIMIT) can be | |
3683 | displayed by the same font on the window W. FACE, if non-NULL, is | |
3684 | the face selected for the character at POS. If STRING is not nil, | |
3685 | it is the string to check instead of the current buffer. In that | |
3686 | case, FACE must be not NULL. | |
027a33c0 | 3687 | |
071132a9 KH |
3688 | The return value is the font-object for the character at POS. |
3689 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3690 | |
071132a9 KH |
3691 | It is assured that the current buffer (or STRING) is multibyte. */ |
3692 | ||
3693 | Lisp_Object | |
971de7fb | 3694 | font_range (EMACS_INT pos, EMACS_INT *limit, struct window *w, struct face *face, Lisp_Object string) |
35027d0c | 3695 | { |
0e5d7800 | 3696 | EMACS_INT pos_byte, ignore; |
35027d0c | 3697 | int c; |
071132a9 | 3698 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3699 | |
3700 | if (NILP (string)) | |
3701 | { | |
35027d0c | 3702 | pos_byte = CHAR_TO_BYTE (pos); |
071132a9 KH |
3703 | if (! face) |
3704 | { | |
3705 | int face_id; | |
3706 | ||
6970f632 CY |
3707 | face_id = face_at_buffer_position (w, pos, 0, 0, &ignore, |
3708 | *limit, 0, -1); | |
071132a9 KH |
3709 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
3710 | } | |
35027d0c KH |
3711 | } |
3712 | else | |
3713 | { | |
071132a9 | 3714 | font_assert (face); |
35027d0c KH |
3715 | pos_byte = string_char_to_byte (string, pos); |
3716 | } | |
3717 | ||
071132a9 | 3718 | while (pos < *limit) |
35027d0c | 3719 | { |
071132a9 | 3720 | Lisp_Object category; |
35027d0c KH |
3721 | |
3722 | if (NILP (string)) | |
3723 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3724 | else | |
3725 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 KH |
3726 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
3727 | if (EQ (category, QCf) | |
3728 | || CHAR_VARIATION_SELECTOR_P (c)) | |
3729 | continue; | |
071132a9 | 3730 | if (NILP (font_object)) |
35027d0c | 3731 | { |
071132a9 KH |
3732 | font_object = font_for_char (face, c, pos - 1, string); |
3733 | if (NILP (font_object)) | |
3734 | return Qnil; | |
35027d0c KH |
3735 | continue; |
3736 | } | |
0e5d7800 KH |
3737 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3738 | *limit = pos - 1; | |
35027d0c | 3739 | } |
071132a9 | 3740 | return font_object; |
10d16101 | 3741 | } |
071132a9 | 3742 | #endif |
10d16101 | 3743 | |
c2f5bfd6 KH |
3744 | \f |
3745 | /* Lisp API */ | |
3746 | ||
35027d0c | 3747 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3748 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3749 | Return nil otherwise. |
3750 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3751 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3752 | `font-object'. */) |
5842a27b | 3753 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3754 | { |
35027d0c KH |
3755 | if (NILP (extra_type)) |
3756 | return (FONTP (object) ? Qt : Qnil); | |
3757 | if (EQ (extra_type, Qfont_spec)) | |
3758 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3759 | if (EQ (extra_type, Qfont_entity)) | |
3760 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3761 | if (EQ (extra_type, Qfont_object)) | |
3762 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3763 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3764 | } |
3765 | ||
a7ca3326 | 3766 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, |
45eb10fb KH |
3767 | doc: /* Return a newly created font-spec with arguments as properties. |
3768 | ||
3769 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3770 | valid font property name listed below: | |
3771 | ||
3772 | `:family', `:weight', `:slant', `:width' | |
3773 | ||
3774 | They are the same as face attributes of the same name. See | |
51c01100 | 3775 | `set-face-attribute'. |
45eb10fb KH |
3776 | |
3777 | `:foundry' | |
3778 | ||
3779 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3780 | ||
3781 | `:adstyle' | |
3782 | ||
3783 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3784 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3785 | |
3786 | `:registry' | |
3787 | ||
3788 | VALUE must be a string or a symbol specifying the charset registry and | |
3789 | encoding of a font, e.g. ``iso8859-1''. | |
3790 | ||
3791 | `:size' | |
3792 | ||
3793 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3794 | specifying the font size. It specifies the font size in pixels (if |
3795 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3796 | |
3797 | `:name' | |
3798 | ||
7a18a178 | 3799 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3800 | |
3801 | `:script' | |
3802 | ||
3803 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3804 | support. It may be a symbol representing a subgroup of a script |
3805 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3806 | |
3807 | `:lang' | |
3808 | ||
3809 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3810 | e.g. `ja'. | |
3811 | ||
3812 | `:otf' | |
3813 | ||
3814 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3815 | required OpenType features. | |
3816 | ||
3817 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3818 | LANGSYS-TAG: OpenType language system tag symbol, | |
3819 | or nil for the default language system. | |
3820 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3821 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3822 | ||
3823 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3824 | must not have any of the remaining elements. | |
3825 | ||
3826 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
22f79966 | 3827 | be an OpenType font, and whose GPOS table of `thai' script's default |
c423ecca KH |
3828 | language system must contain `mark' feature. |
3829 | ||
ba3de0e8 | 3830 | usage: (font-spec ARGS...) */) |
c5101a77 | 3831 | (size_t nargs, Lisp_Object *args) |
c2f5bfd6 | 3832 | { |
35027d0c | 3833 | Lisp_Object spec = font_make_spec (); |
c5101a77 | 3834 | size_t i; |
c2f5bfd6 KH |
3835 | |
3836 | for (i = 0; i < nargs; i += 2) | |
3837 | { | |
cccd42d5 KH |
3838 | Lisp_Object key = args[i], val; |
3839 | ||
3840 | CHECK_SYMBOL (key); | |
3841 | if (i + 1 >= nargs) | |
3842 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3843 | val = args[i + 1]; | |
c2f5bfd6 | 3844 | |
35027d0c KH |
3845 | if (EQ (key, QCname)) |
3846 | { | |
3847 | CHECK_STRING (val); | |
51b59d79 | 3848 | font_parse_name (SSDATA (val), spec); |
35027d0c KH |
3849 | font_put_extra (spec, key, val); |
3850 | } | |
c2f5bfd6 | 3851 | else |
4485a28e | 3852 | { |
35027d0c KH |
3853 | int idx = get_font_prop_index (key); |
3854 | ||
3855 | if (idx >= 0) | |
ec6fe57c | 3856 | { |
35027d0c KH |
3857 | val = font_prop_validate (idx, Qnil, val); |
3858 | if (idx < FONT_EXTRA_INDEX) | |
3859 | ASET (spec, idx, val); | |
3860 | else | |
3861 | font_put_extra (spec, key, val); | |
ec6fe57c | 3862 | } |
35027d0c KH |
3863 | else |
3864 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3865 | } |
e950d6f1 | 3866 | } |
c2f5bfd6 KH |
3867 | return spec; |
3868 | } | |
3869 | ||
92470028 PE |
3870 | /* Return a copy of FONT as a font-spec. */ |
3871 | Lisp_Object | |
3872 | copy_font_spec (Lisp_Object font) | |
35027d0c | 3873 | { |
d26424c5 | 3874 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3875 | int i; |
3876 | ||
3877 | CHECK_FONT (font); | |
3878 | new_spec = font_make_spec (); | |
3879 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3880 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 3881 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
3882 | /* We must remove :font-entity property. */ |
3883 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3884 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3885 | { | |
3886 | if (NILP (prev)) | |
3887 | extra = XCDR (extra); | |
3888 | else | |
3889 | XSETCDR (prev, XCDR (tail)); | |
3890 | break; | |
3891 | } | |
35027d0c KH |
3892 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3893 | return new_spec; | |
3894 | } | |
3895 | ||
92470028 PE |
3896 | /* Merge font-specs FROM and TO, and return a new font-spec. |
3897 | Every specified property in FROM overrides the corresponding | |
3898 | property in TO. */ | |
3899 | Lisp_Object | |
3900 | merge_font_spec (Lisp_Object from, Lisp_Object to) | |
35027d0c KH |
3901 | { |
3902 | Lisp_Object extra, tail; | |
3903 | int i; | |
3904 | ||
3905 | CHECK_FONT (from); | |
3906 | CHECK_FONT (to); | |
92470028 | 3907 | to = copy_font_spec (to); |
35027d0c KH |
3908 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
3909 | ASET (to, i, AREF (from, i)); | |
3910 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3911 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3912 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3913 | { | |
3914 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3915 | ||
3916 | if (! NILP (slot)) | |
3917 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3918 | else | |
3919 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3920 | } | |
3921 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3922 | return to; | |
3923 | } | |
c2f5bfd6 | 3924 | |
a7ca3326 | 3925 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, |
45eb10fb | 3926 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 3927 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 3928 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 3929 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 3930 | :size, :name, :script, :otf |
5bdd4dd2 | 3931 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
3932 | In addition, if FONT is a font-entity or a font-object, values of |
3933 | :script and :otf are different from those of a font-spec as below: | |
3934 | ||
3935 | The value of :script may be a list of scripts that are supported by the font. | |
3936 | ||
3937 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
3938 | representing the OpenType features supported by the font by this form: | |
3939 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3940 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
3941 | Layout tags. */) | |
5842a27b | 3942 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 3943 | { |
35027d0c | 3944 | int idx; |
a7840ffb | 3945 | Lisp_Object val; |
c2f5bfd6 | 3946 | |
35027d0c KH |
3947 | CHECK_FONT (font); |
3948 | CHECK_SYMBOL (key); | |
e80e09b4 | 3949 | |
35027d0c | 3950 | idx = get_font_prop_index (key); |
2babb359 KH |
3951 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3952 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 3953 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 3954 | return AREF (font, idx); |
a7840ffb KH |
3955 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
3956 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
3957 | { | |
3958 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 3959 | |
f6c1c771 KH |
3960 | if (fontp->driver->otf_capability) |
3961 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 3962 | else |
f6c1c771 | 3963 | val = Fcons (Qnil, Qnil); |
a7840ffb KH |
3964 | } |
3965 | else | |
3966 | val = Fcdr (val); | |
3967 | return val; | |
c2f5bfd6 KH |
3968 | } |
3969 | ||
51cf11be AS |
3970 | #ifdef HAVE_WINDOW_SYSTEM |
3971 | ||
b1868a1a CY |
3972 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
3973 | doc: /* Return a plist of face attributes generated by FONT. | |
3974 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
3975 | The return value is a list of the form | |
3976 | ||
6f568955 | 3977 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 3978 | |
48105a6a | 3979 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
3980 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
3981 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 3982 | |
48105a6a JB |
3983 | The optional argument FRAME specifies the frame that the face attributes |
3984 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 3985 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a CY |
3986 | { |
3987 | struct frame *f; | |
3988 | Lisp_Object plist[10]; | |
3989 | Lisp_Object val; | |
5989ba2f | 3990 | int n = 0; |
b1868a1a CY |
3991 | |
3992 | if (NILP (frame)) | |
3993 | frame = selected_frame; | |
3994 | CHECK_LIVE_FRAME (frame); | |
3995 | f = XFRAME (frame); | |
3996 | ||
3997 | if (STRINGP (font)) | |
3998 | { | |
3999 | int fontset = fs_query_fontset (font, 0); | |
4000 | Lisp_Object name = font; | |
4001 | if (fontset >= 0) | |
4002 | font = fontset_ascii (fontset); | |
4003 | font = font_spec_from_name (name); | |
4004 | if (! FONTP (font)) | |
4005 | signal_error ("Invalid font name", name); | |
4006 | } | |
4007 | else if (! FONTP (font)) | |
4008 | signal_error ("Invalid font object", font); | |
4009 | ||
b1868a1a | 4010 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4011 | if (! NILP (val)) |
4012 | { | |
4013 | plist[n++] = QCfamily; | |
4014 | plist[n++] = SYMBOL_NAME (val); | |
4015 | } | |
b1868a1a | 4016 | |
b1868a1a CY |
4017 | val = AREF (font, FONT_SIZE_INDEX); |
4018 | if (INTEGERP (val)) | |
4019 | { | |
4020 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
4021 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy; | |
5989ba2f | 4022 | plist[n++] = QCheight; |
c3bb5465 | 4023 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4024 | } |
4025 | else if (FLOATP (val)) | |
5989ba2f CY |
4026 | { |
4027 | plist[n++] = QCheight; | |
4028 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4029 | } | |
b1868a1a | 4030 | |
b1868a1a | 4031 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4032 | if (! NILP (val)) |
4033 | { | |
4034 | plist[n++] = QCweight; | |
4035 | plist[n++] = val; | |
4036 | } | |
b1868a1a | 4037 | |
b1868a1a | 4038 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4039 | if (! NILP (val)) |
4040 | { | |
4041 | plist[n++] = QCslant; | |
4042 | plist[n++] = val; | |
4043 | } | |
b1868a1a | 4044 | |
b1868a1a | 4045 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4046 | if (! NILP (val)) |
4047 | { | |
4048 | plist[n++] = QCwidth; | |
4049 | plist[n++] = val; | |
4050 | } | |
b1868a1a | 4051 | |
5989ba2f | 4052 | return Flist (n, plist); |
b1868a1a | 4053 | } |
c2f5bfd6 | 4054 | |
51cf11be AS |
4055 | #endif |
4056 | ||
a7ca3326 | 4057 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4058 | doc: /* Set one property of FONT: give property KEY value VAL. |
4059 | FONT is a font-spec, a font-entity, or a font-object. | |
4060 | ||
4061 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4062 | accepted by the function `font-spec' (which see), VAL must be what | |
4063 | allowed in `font-spec'. | |
4064 | ||
4065 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4066 | accepted by `font-spec'. */) | |
e1ffae3b | 4067 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4068 | { |
35027d0c | 4069 | int idx; |
c2f5bfd6 | 4070 | |
35027d0c KH |
4071 | idx = get_font_prop_index (prop); |
4072 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4073 | { |
4074 | CHECK_FONT_SPEC (font); | |
4075 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4076 | } | |
c2f5bfd6 | 4077 | else |
a7840ffb KH |
4078 | { |
4079 | if (EQ (prop, QCname) | |
4080 | || EQ (prop, QCscript) | |
4081 | || EQ (prop, QClang) | |
4082 | || EQ (prop, QCotf)) | |
4083 | CHECK_FONT_SPEC (font); | |
4084 | else | |
4085 | CHECK_FONT (font); | |
4086 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4087 | } | |
c2f5bfd6 KH |
4088 | return val; |
4089 | } | |
4090 | ||
a7ca3326 | 4091 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, |
c2f5bfd6 KH |
4092 | doc: /* List available fonts matching FONT-SPEC on the current frame. |
4093 | Optional 2nd argument FRAME specifies the target frame. | |
4094 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4095 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4096 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4097 | how close they are to PREFER. */) |
5842a27b | 4098 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4099 | { |
72d36834 KH |
4100 | Lisp_Object vec, list; |
4101 | int n = 0; | |
c2f5bfd6 KH |
4102 | |
4103 | if (NILP (frame)) | |
4104 | frame = selected_frame; | |
4105 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 4106 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4107 | if (! NILP (num)) |
4108 | { | |
4109 | CHECK_NUMBER (num); | |
4110 | n = XINT (num); | |
4111 | if (n <= 0) | |
4112 | return Qnil; | |
4113 | } | |
4114 | if (! NILP (prefer)) | |
35027d0c | 4115 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4116 | |
72d36834 KH |
4117 | list = font_list_entities (frame, font_spec); |
4118 | if (NILP (list)) | |
c2f5bfd6 | 4119 | return Qnil; |
72d36834 KH |
4120 | if (NILP (XCDR (list)) |
4121 | && ASIZE (XCAR (list)) == 1) | |
4122 | return Fcons (AREF (XCAR (list), 0), Qnil); | |
c2f5bfd6 KH |
4123 | |
4124 | if (! NILP (prefer)) | |
72d36834 KH |
4125 | vec = font_sort_entities (list, prefer, frame, 0); |
4126 | else | |
4127 | vec = font_vconcat_entity_vectors (list); | |
4128 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4129 | { |
72d36834 | 4130 | Lisp_Object args[2]; |
c2f5bfd6 | 4131 | |
72d36834 KH |
4132 | args[0] = vec; |
4133 | args[1] = Qnil; | |
4134 | list = Fappend (2, args); | |
4135 | } | |
4136 | else | |
4137 | { | |
4138 | for (list = Qnil, n--; n >= 0; n--) | |
4139 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4140 | } |
4141 | return list; | |
4142 | } | |
4143 | ||
35027d0c | 4144 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4145 | doc: /* List available font families on the current frame. |
027a33c0 | 4146 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
5842a27b | 4147 | (Lisp_Object frame) |
c2f5bfd6 KH |
4148 | { |
4149 | FRAME_PTR f; | |
4150 | struct font_driver_list *driver_list; | |
4151 | Lisp_Object list; | |
4152 | ||
4153 | if (NILP (frame)) | |
4154 | frame = selected_frame; | |
4155 | CHECK_LIVE_FRAME (frame); | |
4156 | f = XFRAME (frame); | |
4157 | list = Qnil; | |
4158 | for (driver_list = f->font_driver_list; driver_list; | |
4159 | driver_list = driver_list->next) | |
4160 | if (driver_list->driver->list_family) | |
4161 | { | |
4162 | Lisp_Object val = driver_list->driver->list_family (frame); | |
13bf758b | 4163 | Lisp_Object tail = list; |
c2f5bfd6 | 4164 | |
13bf758b CY |
4165 | for (; CONSP (val); val = XCDR (val)) |
4166 | if (NILP (Fmemq (XCAR (val), tail)) | |
4167 | && SYMBOLP (XCAR (val))) | |
4168 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4169 | } |
4170 | return list; | |
4171 | } | |
4172 | ||
4173 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4174 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4175 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4176 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4177 | { |
4178 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4179 | ||
4180 | if (CONSP (val)) | |
4181 | val = XCAR (val); | |
4182 | return val; | |
4183 | } | |
4184 | ||
a7ca3326 | 4185 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4186 | doc: /* Return XLFD name of FONT. |
4187 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4188 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4189 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
4190 | the consecutive wildcards are folded to one. */) | |
5842a27b | 4191 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4192 | { |
4193 | char name[256]; | |
4194 | int pixel_size = 0; | |
4195 | ||
35027d0c KH |
4196 | CHECK_FONT (font); |
4197 | ||
4198 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4199 | { |
35027d0c | 4200 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4201 | |
35027d0c KH |
4202 | if (STRINGP (font_name) |
4203 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4204 | { |
4205 | if (NILP (fold_wildcards)) | |
4206 | return font_name; | |
51b59d79 | 4207 | strcpy (name, SSDATA (font_name)); |
d0ab1ebe KH |
4208 | goto done; |
4209 | } | |
35027d0c | 4210 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4211 | } |
c2f5bfd6 KH |
4212 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
4213 | return Qnil; | |
d0ab1ebe KH |
4214 | done: |
4215 | if (! NILP (fold_wildcards)) | |
4216 | { | |
4217 | char *p0 = name, *p1; | |
4218 | ||
4219 | while ((p1 = strstr (p0, "-*-*"))) | |
4220 | { | |
4221 | strcpy (p1, p1 + 2); | |
4222 | p0 = p1; | |
4223 | } | |
4224 | } | |
4225 | ||
c2f5bfd6 KH |
4226 | return build_string (name); |
4227 | } | |
4228 | ||
4229 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
4230 | doc: /* Clear font cache. */) | |
5842a27b | 4231 | (void) |
c2f5bfd6 KH |
4232 | { |
4233 | Lisp_Object list, frame; | |
4234 | ||
4235 | FOR_EACH_FRAME (list, frame) | |
4236 | { | |
4237 | FRAME_PTR f = XFRAME (frame); | |
4238 | struct font_driver_list *driver_list = f->font_driver_list; | |
4239 | ||
4240 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
4241 | if (driver_list->on) |
4242 | { | |
ca4da08a | 4243 | Lisp_Object cache = driver_list->driver->get_cache (f); |
7a6f7fea | 4244 | Lisp_Object val, tmp; |
51c01100 | 4245 | |
ca4da08a | 4246 | val = XCDR (cache); |
43c0454d KH |
4247 | while (! NILP (val) |
4248 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 4249 | val = XCDR (val); |
d0ab1ebe | 4250 | font_assert (! NILP (val)); |
7a6f7fea AS |
4251 | tmp = XCDR (XCAR (val)); |
4252 | if (XINT (XCAR (tmp)) == 0) | |
417a1b10 | 4253 | { |
ca4da08a KH |
4254 | font_clear_cache (f, XCAR (val), driver_list->driver); |
4255 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 4256 | } |
417a1b10 | 4257 | } |
c2f5bfd6 KH |
4258 | } |
4259 | ||
4260 | return Qnil; | |
4261 | } | |
4262 | ||
071132a9 KH |
4263 | \f |
4264 | void | |
971de7fb | 4265 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4266 | { |
071132a9 | 4267 | struct font *font = XFONT_OBJECT (font_object); |
f62ab7c5 EZ |
4268 | unsigned code; |
4269 | /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */ | |
4270 | EMACS_INT ecode = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); | |
071132a9 | 4271 | struct font_metrics metrics; |
c2f5bfd6 | 4272 | |
f62ab7c5 EZ |
4273 | LGLYPH_SET_CODE (glyph, ecode); |
4274 | code = ecode; | |
071132a9 KH |
4275 | font->driver->text_extents (font, &code, 1, &metrics); |
4276 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4277 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4278 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4279 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4280 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4281 | } |
4282 | ||
c2f5bfd6 | 4283 | |
071132a9 KH |
4284 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4285 | doc: /* Shape the glyph-string GSTRING. | |
4286 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4287 | to get the correct visual image of character sequences set in the | |
4288 | header of the glyph-string. | |
1701724c | 4289 | |
071132a9 KH |
4290 | If the shaping was successful, the value is GSTRING itself or a newly |
4291 | created glyph-string. Otherwise, the value is nil. */) | |
5842a27b | 4292 | (Lisp_Object gstring) |
1701724c KH |
4293 | { |
4294 | struct font *font; | |
071132a9 | 4295 | Lisp_Object font_object, n, glyph; |
fc3a285e | 4296 | int i, j, from, to; |
ba3de0e8 | 4297 | |
071132a9 KH |
4298 | if (! composition_gstring_p (gstring)) |
4299 | signal_error ("Invalid glyph-string: ", gstring); | |
4300 | if (! NILP (LGSTRING_ID (gstring))) | |
4301 | return gstring; | |
4302 | font_object = LGSTRING_FONT (gstring); | |
4303 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4304 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4305 | if (! font->driver->shape) |
4306 | return Qnil; | |
4307 | ||
40fb53d6 KH |
4308 | /* Try at most three times with larger gstring each time. */ |
4309 | for (i = 0; i < 3; i++) | |
4310 | { | |
40fb53d6 KH |
4311 | n = font->driver->shape (gstring); |
4312 | if (INTEGERP (n)) | |
4313 | break; | |
071132a9 KH |
4314 | gstring = larger_vector (gstring, |
4315 | ASIZE (gstring) + LGSTRING_GLYPH_LEN (gstring), | |
4316 | Qnil); | |
40fb53d6 | 4317 | } |
071132a9 | 4318 | if (i == 3 || XINT (n) == 0) |
1701724c | 4319 | return Qnil; |
dfe3c90f KH |
4320 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4321 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4322 | |
071132a9 | 4323 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4324 | from = LGLYPH_FROM (glyph); |
4325 | to = LGLYPH_TO (glyph); | |
4326 | for (i = 1, j = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 KH |
4327 | { |
4328 | Lisp_Object this = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 4329 | |
071132a9 KH |
4330 | if (NILP (this)) |
4331 | break; | |
4332 | if (NILP (LGLYPH_ADJUSTMENT (this))) | |
fc3a285e KH |
4333 | { |
4334 | if (j < i - 1) | |
4335 | for (; j < i; j++) | |
4336 | { | |
4337 | glyph = LGSTRING_GLYPH (gstring, j); | |
4338 | LGLYPH_SET_FROM (glyph, from); | |
4339 | LGLYPH_SET_TO (glyph, to); | |
4340 | } | |
4341 | from = LGLYPH_FROM (this); | |
4342 | to = LGLYPH_TO (this); | |
4343 | j = i; | |
4344 | } | |
071132a9 | 4345 | else |
b2937119 | 4346 | { |
fc3a285e KH |
4347 | if (from > LGLYPH_FROM (this)) |
4348 | from = LGLYPH_FROM (this); | |
4349 | if (to < LGLYPH_TO (this)) | |
4350 | to = LGLYPH_TO (this); | |
b2937119 | 4351 | } |
10d16101 | 4352 | } |
fc3a285e KH |
4353 | if (j < i - 1) |
4354 | for (; j < i; j++) | |
4355 | { | |
4356 | glyph = LGSTRING_GLYPH (gstring, j); | |
4357 | LGLYPH_SET_FROM (glyph, from); | |
4358 | LGLYPH_SET_TO (glyph, to); | |
4359 | } | |
071132a9 | 4360 | return composition_gstring_put_cache (gstring, XINT (n)); |
c2f5bfd6 KH |
4361 | } |
4362 | ||
78a2f9cd KH |
4363 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4364 | 2, 2, 0, | |
4365 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4366 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4367 | where | |
c0943d3d | 4368 | VARIATION-SELECTOR is a character code of variation selection |
78a2f9cd KH |
4369 | (#xFE00..#xFE0F or #xE0100..#xE01EF) |
4370 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4371 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4372 | { |
4373 | unsigned variations[256]; | |
4374 | struct font *font; | |
4375 | int i, n; | |
4376 | Lisp_Object val; | |
4377 | ||
4378 | CHECK_FONT_OBJECT (font_object); | |
4379 | CHECK_CHARACTER (character); | |
4380 | font = XFONT_OBJECT (font_object); | |
4381 | if (! font->driver->get_variation_glyphs) | |
4382 | return Qnil; | |
4383 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4384 | if (! n) | |
4385 | return Qnil; | |
4386 | val = Qnil; | |
4387 | for (i = 0; i < 255; i++) | |
4388 | if (variations[i]) | |
4389 | { | |
4390 | Lisp_Object code; | |
4391 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); | |
b60861e6 GM |
4392 | /* Stops GCC whining about limited range of data type. */ |
4393 | EMACS_INT var = variations[i]; | |
78a2f9cd | 4394 | |
b60861e6 | 4395 | if (var > MOST_POSITIVE_FIXNUM) |
78a2f9cd KH |
4396 | code = Fcons (make_number ((variations[i]) >> 16), |
4397 | make_number ((variations[i]) & 0xFFFF)); | |
4398 | else | |
4399 | code = make_number (variations[i]); | |
4400 | val = Fcons (Fcons (make_number (vs), code), val); | |
4401 | } | |
4402 | return val; | |
4403 | } | |
4404 | ||
6a3dadd2 KH |
4405 | #if 0 |
4406 | ||
a7ca3326 | 4407 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
733fd013 | 4408 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. |
51c01100 | 4409 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4410 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4411 | where |
4412 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4413 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4414 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4415 | |
4416 | If LANGYS is nil, the default langsys is selected. | |
4417 | ||
51c01100 JB |
4418 | The features are applied in the order they appear in the list. The |
4419 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4420 | list, and the remaining features are ignored. For instance, (vatu |
4421 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4422 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4423 | |
4424 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4425 | the glyph-string GSTRING-IN. |
e80e09b4 | 4426 | |
51c01100 | 4427 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4428 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4429 | this case, the value is the number of produced glyphs. | |
4430 | ||
4431 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4432 | the value is 0. | |
4433 | ||
51c01100 | 4434 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4435 | produced in GSTRING-OUT, and the value is nil. |
4436 | ||
4437 | See the documentation of `font-make-gstring' for the format of | |
4438 | glyph-string. */) | |
5842a27b | 4439 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4440 | { |
4441 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4442 | Lisp_Object val; |
4443 | struct font *font; | |
e80e09b4 KH |
4444 | int len, num; |
4445 | ||
733fd013 | 4446 | check_otf_features (otf_features); |
35027d0c KH |
4447 | CHECK_FONT_OBJECT (font_object); |
4448 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4449 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4450 | error ("Font backend %s can't drive OpenType GSUB table", |
4451 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4452 | CHECK_CONS (otf_features); |
4453 | CHECK_SYMBOL (XCAR (otf_features)); | |
4454 | val = XCDR (otf_features); | |
4455 | CHECK_SYMBOL (XCAR (val)); | |
4456 | val = XCDR (otf_features); | |
4457 | if (! NILP (val)) | |
4458 | CHECK_CONS (val); | |
e80e09b4 KH |
4459 | len = check_gstring (gstring_in); |
4460 | CHECK_VECTOR (gstring_out); | |
4461 | CHECK_NATNUM (from); | |
4462 | CHECK_NATNUM (to); | |
4463 | CHECK_NATNUM (index); | |
4464 | ||
4465 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4466 | args_out_of_range_3 (from, to, make_number (len)); | |
4467 | if (XINT (index) >= ASIZE (gstring_out)) | |
4468 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4469 | num = font->driver->otf_drive (font, otf_features, |
4470 | gstring_in, XINT (from), XINT (to), | |
4471 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4472 | if (num < 0) |
4473 | return Qnil; | |
4474 | return make_number (num); | |
4475 | } | |
4476 | ||
a7ca3326 | 4477 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
e80e09b4 KH |
4478 | 3, 3, 0, |
4479 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4480 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4481 | in this format: |
4482 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4483 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4484 | |
4485 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4486 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4487 | character code corresponding to the glyph or nil if there's no | |
4488 | corresponding character. */) | |
5842a27b | 4489 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4490 | { |
4491 | struct font *font; | |
4492 | Lisp_Object gstring_in, gstring_out, g; | |
4493 | Lisp_Object alternates; | |
4494 | int i, num; | |
4495 | ||
4496 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4497 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4498 | error ("Font backend %s can't drive OpenType GSUB table", |
4499 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4500 | CHECK_CHARACTER (character); |
733fd013 | 4501 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4502 | |
4503 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4504 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4505 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4506 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4507 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4508 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4509 | gstring_out = Ffont_make_gstring (font_object, |
4510 | make_number (ASIZE (gstring_out) * 2)); | |
4511 | alternates = Qnil; | |
4512 | for (i = 0; i < num; i++) | |
4513 | { | |
4514 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4515 | int c = LGLYPH_CHAR (g); |
4516 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4517 | |
4518 | alternates = Fcons (Fcons (make_number (code), | |
4519 | c > 0 ? make_number (c) : Qnil), | |
4520 | alternates); | |
4521 | } | |
4522 | return Fnreverse (alternates); | |
4523 | } | |
6a3dadd2 | 4524 | #endif /* 0 */ |
c2f5bfd6 KH |
4525 | |
4526 | #ifdef FONT_DEBUG | |
4527 | ||
4528 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4529 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4530 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 KH |
4531 | { |
4532 | int isize; | |
4533 | ||
4534 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4535 | if (NILP (frame)) |
4536 | frame = selected_frame; | |
4537 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4538 | |
35027d0c KH |
4539 | if (NILP (size)) |
4540 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4541 | else | |
4542 | { | |
4543 | CHECK_NUMBER_OR_FLOAT (size); | |
4544 | if (FLOATP (size)) | |
d03b5cdb | 4545 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), XFRAME (frame)->resy); |
35027d0c KH |
4546 | else |
4547 | isize = XINT (size); | |
4548 | if (isize == 0) | |
4549 | isize = 120; | |
4550 | } | |
c2f5bfd6 KH |
4551 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4552 | } | |
4553 | ||
4554 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4555 | doc: /* Close FONT-OBJECT. */) | |
5842a27b | 4556 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4557 | { |
4558 | CHECK_FONT_OBJECT (font_object); | |
4559 | if (NILP (frame)) | |
4560 | frame = selected_frame; | |
4561 | CHECK_LIVE_FRAME (frame); | |
4562 | font_close_object (XFRAME (frame), font_object); | |
4563 | return Qnil; | |
4564 | } | |
4565 | ||
4566 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4567 | doc: /* Return information about FONT-OBJECT. |
4568 | The value is a vector: | |
4569 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4570 | CAPABILITY ] |
e80e09b4 KH |
4571 | |
4572 | NAME is a string of the font name (or nil if the font backend doesn't | |
4573 | provide a name). | |
4574 | ||
4575 | FILENAME is a string of the font file (or nil if the font backend | |
4576 | doesn't provide a file name). | |
4577 | ||
4578 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4579 | ||
027a33c0 | 4580 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4581 | |
4582 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4583 | pixels. |
e80e09b4 | 4584 | |
e0708580 KH |
4585 | CAPABILITY is a list whose first element is a symbol representing the |
4586 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4587 | remaining elements describe the details of the font capability. |
e0708580 KH |
4588 | |
4589 | If the font is OpenType font, the form of the list is | |
4590 | \(opentype GSUB GPOS) | |
4591 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4592 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4593 | lists of the format: | |
4594 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4595 | ||
4596 | If the font is not OpenType font, currently the length of the form is | |
4597 | one. | |
e80e09b4 KH |
4598 | |
4599 | SCRIPT is a symbol representing OpenType script tag. | |
4600 | ||
4601 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4602 | representing the default langsys. | |
4603 | ||
51c01100 | 4604 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4605 | |
51c01100 | 4606 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4607 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4608 | { |
4609 | struct font *font; | |
4610 | Lisp_Object val; | |
4611 | ||
4612 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4613 | ||
4614 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4615 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4616 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4617 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4618 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4619 | ASET (val, 4, make_number (font->ascent)); |
4620 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4621 | ASET (val, 6, make_number (font->space_width)); |
4622 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4623 | if (font->driver->otf_capability) |
e0708580 | 4624 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4625 | return val; |
4626 | } | |
4627 | ||
a7840ffb KH |
4628 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4629 | doc: | |
4630 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4631 | FROM and TO are positions (integers or markers) specifying a region | |
4632 | of the current buffer. | |
4633 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4634 | vector containing the target characters. | |
4635 | ||
4636 | Each element is a vector containing information of a glyph in this format: | |
4637 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4638 | where | |
4639 | FROM is an index numbers of a character the glyph corresponds to. | |
4640 | TO is the same as FROM. | |
4641 | C is the character of the glyph. | |
4642 | CODE is the glyph-code of C in FONT-OBJECT. | |
4643 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4644 | ADJUSTMENT is always nil. | |
4645 | If FONT-OBJECT doesn't have a glyph for a character, | |
4646 | the corresponding element is nil. */) | |
e1ffae3b KH |
4647 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4648 | Lisp_Object object) | |
c2f5bfd6 KH |
4649 | { |
4650 | struct font *font; | |
13a547c6 | 4651 | int i, len; |
a7840ffb KH |
4652 | Lisp_Object *chars, vec; |
4653 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4654 | |
4655 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4656 | if (NILP (object)) |
4657 | { | |
4658 | EMACS_INT charpos, bytepos; | |
4659 | ||
4660 | validate_region (&from, &to); | |
4661 | if (EQ (from, to)) | |
4662 | return Qnil; | |
4663 | len = XFASTINT (to) - XFASTINT (from); | |
4664 | SAFE_ALLOCA_LISP (chars, len); | |
4665 | charpos = XFASTINT (from); | |
4666 | bytepos = CHAR_TO_BYTE (charpos); | |
4667 | for (i = 0; charpos < XFASTINT (to); i++) | |
4668 | { | |
13a547c6 | 4669 | int c; |
a7840ffb KH |
4670 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); |
4671 | chars[i] = make_number (c); | |
4672 | } | |
4673 | } | |
4674 | else if (STRINGP (object)) | |
4675 | { | |
4676 | const unsigned char *p; | |
4677 | ||
4678 | CHECK_NUMBER (from); | |
4679 | CHECK_NUMBER (to); | |
4680 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4681 | || XINT (to) > SCHARS (object)) | |
4682 | args_out_of_range_3 (object, from, to); | |
4683 | if (EQ (from, to)) | |
4684 | return Qnil; | |
4685 | len = XFASTINT (to) - XFASTINT (from); | |
4686 | SAFE_ALLOCA_LISP (chars, len); | |
4687 | p = SDATA (object); | |
4688 | if (STRING_MULTIBYTE (object)) | |
4689 | for (i = 0; i < len; i++) | |
4690 | { | |
13a547c6 | 4691 | int c = STRING_CHAR_ADVANCE (p); |
a7840ffb KH |
4692 | chars[i] = make_number (c); |
4693 | } | |
4694 | else | |
4695 | for (i = 0; i < len; i++) | |
4696 | chars[i] = make_number (p[i]); | |
4697 | } | |
4698 | else | |
4699 | { | |
4700 | CHECK_VECTOR (object); | |
4701 | CHECK_NUMBER (from); | |
4702 | CHECK_NUMBER (to); | |
4703 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4704 | || XINT (to) > ASIZE (object)) | |
4705 | args_out_of_range_3 (object, from, to); | |
4706 | if (EQ (from, to)) | |
4707 | return Qnil; | |
4708 | len = XFASTINT (to) - XFASTINT (from); | |
4709 | for (i = 0; i < len; i++) | |
4710 | { | |
4711 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4712 | CHECK_CHARACTER (elt); | |
4713 | } | |
4714 | chars = &(AREF (object, XFASTINT (from))); | |
4715 | } | |
4716 | ||
c2f5bfd6 KH |
4717 | vec = Fmake_vector (make_number (len), Qnil); |
4718 | for (i = 0; i < len; i++) | |
4719 | { | |
a7840ffb KH |
4720 | Lisp_Object g; |
4721 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 KH |
4722 | unsigned code; |
4723 | struct font_metrics metrics; | |
4724 | ||
78834453 | 4725 | code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4726 | if (code == FONT_INVALID_CODE) |
4727 | continue; | |
a7840ffb KH |
4728 | g = Fmake_vector (make_number (LGLYPH_SIZE), Qnil); |
4729 | LGLYPH_SET_FROM (g, i); | |
4730 | LGLYPH_SET_TO (g, i); | |
4731 | LGLYPH_SET_CHAR (g, c); | |
4732 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4733 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4734 | LGLYPH_SET_WIDTH (g, metrics.width); |
4735 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4736 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4737 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4738 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4739 | ASET (vec, i, g); | |
4740 | } | |
4741 | if (! VECTORP (object)) | |
4742 | SAFE_FREE (); | |
c2f5bfd6 KH |
4743 | return vec; |
4744 | } | |
4745 | ||
ec6fe57c | 4746 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4747 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4748 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4749 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4750 | { |
4751 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4752 | CHECK_FONT (font); |
ec6fe57c KH |
4753 | |
4754 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4755 | } | |
4756 | ||
1701724c | 4757 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4758 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4759 | Optional second arg WINDOW, if non-nil, is a window displaying |
4760 | the current buffer. It defaults to the currently selected window. */) | |
5842a27b | 4761 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 KH |
4762 | { |
4763 | struct window *w; | |
e3ee0340 | 4764 | EMACS_INT pos; |
10d16101 | 4765 | |
1701724c KH |
4766 | if (NILP (string)) |
4767 | { | |
4768 | CHECK_NUMBER_COERCE_MARKER (position); | |
4769 | pos = XINT (position); | |
4770 | if (pos < BEGV || pos >= ZV) | |
4771 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4772 | } |
4773 | else | |
4774 | { | |
1701724c KH |
4775 | CHECK_NUMBER (position); |
4776 | CHECK_STRING (string); | |
4777 | pos = XINT (position); | |
4778 | if (pos < 0 || pos >= SCHARS (string)) | |
4779 | args_out_of_range (string, position); | |
1701724c | 4780 | } |
10d16101 KH |
4781 | if (NILP (window)) |
4782 | window = selected_window; | |
4783 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4784 | w = XWINDOW (window); |
10d16101 | 4785 | |
40fb53d6 | 4786 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4787 | } |
4788 | ||
c2f5bfd6 KH |
4789 | #if 0 |
4790 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4791 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4792 | The value is a number of glyphs drawn. | |
4793 | Type C-l to recover what previously shown. */) | |
5842a27b | 4794 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4795 | { |
4796 | Lisp_Object frame = selected_frame; | |
4797 | FRAME_PTR f = XFRAME (frame); | |
4798 | struct font *font; | |
4799 | struct face *face; | |
4800 | int i, len, width; | |
4801 | unsigned *code; | |
4802 | ||
4803 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4804 | CHECK_STRING (string); | |
4805 | len = SCHARS (string); | |
4806 | code = alloca (sizeof (unsigned) * len); | |
4807 | for (i = 0; i < len; i++) | |
4808 | { | |
4809 | Lisp_Object ch = Faref (string, make_number (i)); | |
4810 | Lisp_Object val; | |
4811 | int c = XINT (ch); | |
4812 | ||
4813 | code[i] = font->driver->encode_char (font, c); | |
4814 | if (code[i] == FONT_INVALID_CODE) | |
4815 | break; | |
4816 | } | |
4817 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4818 | face->fontp = font; | |
4819 | if (font->driver->prepare_face) | |
4820 | font->driver->prepare_face (f, face); | |
4821 | width = font->driver->text_extents (font, code, i, NULL); | |
4822 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4823 | if (font->driver->done_face) | |
4824 | font->driver->done_face (f, face); | |
4825 | face->fontp = NULL; | |
4826 | return make_number (len); | |
4827 | } | |
4828 | #endif | |
4829 | ||
4830 | #endif /* FONT_DEBUG */ | |
4831 | ||
a266686a KH |
4832 | #ifdef HAVE_WINDOW_SYSTEM |
4833 | ||
72606e45 KH |
4834 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4835 | doc: /* Return information about a font named NAME on frame FRAME. | |
4836 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4837 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4838 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4839 | where | |
4840 | OPENED-NAME is the name used for opening the font, | |
4841 | FULL-NAME is the full name of the font, | |
06f19b91 KH |
4842 | SIZE is the pixelsize of the font, |
4843 | HEIGHT is the pixel-height of the font (i.e ascent + descent), | |
72606e45 KH |
4844 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4845 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4846 | how to compose characters. | |
4847 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4848 | (Lisp_Object name, Lisp_Object frame) |
72606e45 KH |
4849 | { |
4850 | FRAME_PTR f; | |
4851 | struct font *font; | |
4852 | Lisp_Object info; | |
4853 | Lisp_Object font_object; | |
4854 | ||
4855 | (*check_window_system_func) (); | |
4856 | ||
4857 | if (! FONTP (name)) | |
4858 | CHECK_STRING (name); | |
4859 | if (NILP (frame)) | |
4860 | frame = selected_frame; | |
4861 | CHECK_LIVE_FRAME (frame); | |
4862 | f = XFRAME (frame); | |
4863 | ||
4864 | if (STRINGP (name)) | |
4865 | { | |
4866 | int fontset = fs_query_fontset (name, 0); | |
4867 | ||
4868 | if (fontset >= 0) | |
4869 | name = fontset_ascii (fontset); | |
51b59d79 | 4870 | font_object = font_open_by_name (f, SSDATA (name)); |
72606e45 KH |
4871 | } |
4872 | else if (FONT_OBJECT_P (name)) | |
4873 | font_object = name; | |
4874 | else if (FONT_ENTITY_P (name)) | |
4875 | font_object = font_open_entity (f, name, 0); | |
4876 | else | |
4877 | { | |
4878 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4879 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4880 | ||
4881 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4882 | } | |
4883 | if (NILP (font_object)) | |
4884 | return Qnil; | |
4885 | font = XFONT_OBJECT (font_object); | |
4886 | ||
4887 | info = Fmake_vector (make_number (7), Qnil); | |
4888 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
06f19b91 | 4889 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_FULLNAME_INDEX); |
72606e45 KH |
4890 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); |
4891 | XVECTOR (info)->contents[3] = make_number (font->height); | |
4892 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
4893 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
4894 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
4895 | ||
4896 | #if 0 | |
4897 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4898 | close it now. Perhaps, we should manage font-objects | |
4899 | by `reference-count'. */ | |
4900 | font_close_object (f, font_object); | |
4901 | #endif | |
4902 | return info; | |
4903 | } | |
a266686a | 4904 | #endif |
72606e45 | 4905 | |
c2f5bfd6 | 4906 | \f |
d0ab1ebe KH |
4907 | #define BUILD_STYLE_TABLE(TBL) \ |
4908 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4909 | ||
4910 | static Lisp_Object | |
971de7fb | 4911 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
4912 | { |
4913 | int i, j; | |
4914 | Lisp_Object table, elt; | |
17ab8f5d | 4915 | |
d0ab1ebe KH |
4916 | table = Fmake_vector (make_number (nelement), Qnil); |
4917 | for (i = 0; i < nelement; i++) | |
4918 | { | |
4919 | for (j = 0; entry[i].names[j]; j++); | |
4920 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4921 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4922 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 4923 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
4924 | ASET (table, i, elt); |
4925 | } | |
4926 | return table; | |
4927 | } | |
4928 | ||
d0818984 KH |
4929 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4930 | If ACTION is not nil, that is added to the log when font_add_log is | |
4931 | called next time. At that time, ACTION is set back to nil. */ | |
4932 | static Lisp_Object Vfont_log_deferred; | |
4933 | ||
4934 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4935 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4936 | opening), ARG is the argument for the action, and RESULT is the | |
4937 | result of the action. */ | |
d0ab1ebe | 4938 | void |
675e2c69 | 4939 | font_add_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe | 4940 | { |
13a547c6 | 4941 | Lisp_Object val; |
d0ab1ebe KH |
4942 | int i; |
4943 | ||
d0ab1ebe KH |
4944 | if (EQ (Vfont_log, Qt)) |
4945 | return; | |
d0818984 KH |
4946 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4947 | { | |
51b59d79 | 4948 | char *str = SSDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4949 | |
4950 | ASET (Vfont_log_deferred, 0, Qnil); | |
4951 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
4952 | AREF (Vfont_log_deferred, 2)); | |
4953 | } | |
4954 | ||
d0ab1ebe | 4955 | if (FONTP (arg)) |
db716644 KH |
4956 | { |
4957 | Lisp_Object tail, elt; | |
4958 | Lisp_Object equalstr = build_string ("="); | |
4959 | ||
4960 | val = Ffont_xlfd_name (arg, Qt); | |
4961 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
4962 | tail = XCDR (tail)) | |
4963 | { | |
4964 | elt = XCAR (tail); | |
49f9c344 KH |
4965 | if (EQ (XCAR (elt), QCscript) |
4966 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4967 | val = concat3 (val, SYMBOL_NAME (QCscript), |
4968 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4969 | else if (EQ (XCAR (elt), QClang) |
4970 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4971 | val = concat3 (val, SYMBOL_NAME (QClang), |
4972 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4973 | else if (EQ (XCAR (elt), QCotf) |
4974 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
4975 | val = concat3 (val, SYMBOL_NAME (QCotf), |
4976 | concat2 (equalstr, | |
4977 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
4978 | } | |
4979 | arg = val; | |
4980 | } | |
72d36834 KH |
4981 | |
4982 | if (CONSP (result) | |
4983 | && VECTORP (XCAR (result)) | |
4984 | && ASIZE (XCAR (result)) > 0 | |
4985 | && FONTP (AREF (XCAR (result), 0))) | |
4986 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 4987 | if (FONTP (result)) |
d26424c5 KH |
4988 | { |
4989 | val = Ffont_xlfd_name (result, Qt); | |
4990 | if (! FONT_SPEC_P (result)) | |
4991 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
4992 | build_string (":"), val); | |
4993 | result = val; | |
4994 | } | |
d0ab1ebe KH |
4995 | else if (CONSP (result)) |
4996 | { | |
13a547c6 | 4997 | Lisp_Object tail; |
d0ab1ebe KH |
4998 | result = Fcopy_sequence (result); |
4999 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
5000 | { | |
5001 | val = XCAR (tail); | |
5002 | if (FONTP (val)) | |
5003 | val = Ffont_xlfd_name (val, Qt); | |
5004 | XSETCAR (tail, val); | |
5005 | } | |
5006 | } | |
5007 | else if (VECTORP (result)) | |
5008 | { | |
5009 | result = Fcopy_sequence (result); | |
5010 | for (i = 0; i < ASIZE (result); i++) | |
5011 | { | |
5012 | val = AREF (result, i); | |
5013 | if (FONTP (val)) | |
5014 | val = Ffont_xlfd_name (val, Qt); | |
5015 | ASET (result, i, val); | |
5016 | } | |
5017 | } | |
5018 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
5019 | } | |
5020 | ||
d0818984 KH |
5021 | /* Record a font-related logging data to be added to Vfont_log when |
5022 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
5023 | as font_add_log. */ | |
5024 | ||
5025 | void | |
675e2c69 | 5026 | font_deferred_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 5027 | { |
652b9560 KH |
5028 | if (EQ (Vfont_log, Qt)) |
5029 | return; | |
d0818984 KH |
5030 | ASET (Vfont_log_deferred, 0, build_string (action)); |
5031 | ASET (Vfont_log_deferred, 1, arg); | |
5032 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 5033 | } |
d0818984 | 5034 | |
c2f5bfd6 | 5035 | void |
971de7fb | 5036 | syms_of_font (void) |
c2f5bfd6 | 5037 | { |
4007dd1c KH |
5038 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
5039 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
5040 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5041 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5042 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5043 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5044 | |
1701724c KH |
5045 | staticpro (&font_charset_alist); |
5046 | font_charset_alist = Qnil; | |
5047 | ||
e0708580 | 5048 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5049 | |
9e1bb909 | 5050 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5051 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5052 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5053 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5054 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5055 | |
071132a9 KH |
5056 | DEFSYM (QCf, "Cf"); |
5057 | ||
c2f5bfd6 | 5058 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5059 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5060 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5061 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5062 | |
5063 | DEFSYM (QCfoundry, ":foundry"); | |
5064 | DEFSYM (QCadstyle, ":adstyle"); | |
5065 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5066 | DEFSYM (QCspacing, ":spacing"); |
5067 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5068 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5069 | DEFSYM (QCavgwidth, ":avgwidth"); |
5070 | DEFSYM (QCfont_entity, ":font-entity"); | |
5071 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5072 | |
ec6fe57c KH |
5073 | DEFSYM (Qc, "c"); |
5074 | DEFSYM (Qm, "m"); | |
5075 | DEFSYM (Qp, "p"); | |
5076 | DEFSYM (Qd, "d"); | |
5077 | ||
cf702558 CY |
5078 | DEFSYM (Qja, "ja"); |
5079 | DEFSYM (Qko, "ko"); | |
5080 | ||
42707278 JD |
5081 | DEFSYM (QCuser_spec, "user-spec"); |
5082 | ||
c2f5bfd6 KH |
5083 | staticpro (&null_vector); |
5084 | null_vector = Fmake_vector (make_number (0), Qnil); | |
5085 | ||
5086 | staticpro (&scratch_font_spec); | |
5087 | scratch_font_spec = Ffont_spec (0, NULL); | |
5088 | staticpro (&scratch_font_prefer); | |
5089 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5090 | ||
d0818984 KH |
5091 | staticpro (&Vfont_log_deferred); |
5092 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5093 | ||
6a3dadd2 | 5094 | #if 0 |
733fd013 KH |
5095 | #ifdef HAVE_LIBOTF |
5096 | staticpro (&otf_list); | |
5097 | otf_list = Qnil; | |
6a3dadd2 KH |
5098 | #endif /* HAVE_LIBOTF */ |
5099 | #endif /* 0 */ | |
733fd013 | 5100 | |
c2f5bfd6 KH |
5101 | defsubr (&Sfontp); |
5102 | defsubr (&Sfont_spec); | |
5103 | defsubr (&Sfont_get); | |
51cf11be | 5104 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5105 | defsubr (&Sfont_face_attributes); |
51cf11be | 5106 | #endif |
c2f5bfd6 KH |
5107 | defsubr (&Sfont_put); |
5108 | defsubr (&Slist_fonts); | |
35027d0c | 5109 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5110 | defsubr (&Sfind_font); |
5111 | defsubr (&Sfont_xlfd_name); | |
5112 | defsubr (&Sclear_font_cache); | |
071132a9 | 5113 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5114 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5115 | #if 0 |
733fd013 | 5116 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5117 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5118 | #endif /* 0 */ |
c2f5bfd6 KH |
5119 | |
5120 | #ifdef FONT_DEBUG | |
5121 | defsubr (&Sopen_font); | |
5122 | defsubr (&Sclose_font); | |
5123 | defsubr (&Squery_font); | |
a7840ffb | 5124 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5125 | defsubr (&Sfont_match_p); |
10d16101 | 5126 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5127 | #if 0 |
5128 | defsubr (&Sdraw_string); | |
5129 | #endif | |
5130 | #endif /* FONT_DEBUG */ | |
a266686a | 5131 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5132 | defsubr (&Sfont_info); |
a266686a | 5133 | #endif |
c2f5bfd6 | 5134 | |
29208e82 | 5135 | DEFVAR_LISP ("font-encoding-alist", Vfont_encoding_alist, |
819e81df KH |
5136 | doc: /* |
5137 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5138 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5139 | where ENCODING is a charset or a char-table, | |
5140 | and REPERTORY is a charset, a char-table, or nil. | |
5141 | ||
027a33c0 | 5142 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5143 | \(REGEXP . ENCODING). |
5144 | ||
5145 | ENCODING is for converting a character to a glyph code of the font. | |
5146 | If ENCODING is a charset, encoding a character by the charset gives | |
5147 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5148 | the table by a character gives the corresponding glyph code. | |
5149 | ||
5150 | REPERTORY specifies a repertory of characters supported by the font. | |
5151 | If REPERTORY is a charset, all characters beloging to the charset are | |
5152 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 5153 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5154 | gets the repertory information by an opened font and ENCODING. */); |
5155 | Vfont_encoding_alist = Qnil; | |
5156 | ||
933ac235 SM |
5157 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5158 | won't have any effect other than disconnect them from the style | |
5159 | table used by the font display code. So we make them read-only, | |
5160 | to avoid this confusing situation. */ | |
5161 | ||
29208e82 | 5162 | DEFVAR_LISP_NOPRO ("font-weight-table", Vfont_weight_table, |
d0ab1ebe KH |
5163 | doc: /* Vector of valid font weight values. |
5164 | Each element has the form: | |
5165 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5166 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5167 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5168 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe | 5169 | |
29208e82 | 5170 | DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table, |
d0ab1ebe | 5171 | doc: /* Vector of font slant symbols vs the corresponding numeric values. |
17ab8f5d | 5172 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5173 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5174 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe | 5175 | |
29208e82 | 5176 | DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table, |
d0ab1ebe | 5177 | doc: /* Alist of font width symbols vs the corresponding numeric values. |
17ab8f5d | 5178 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5179 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5180 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5181 | |
5182 | staticpro (&font_style_table); | |
5183 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
5184 | ASET (font_style_table, 0, Vfont_weight_table); | |
5185 | ASET (font_style_table, 1, Vfont_slant_table); | |
5186 | ASET (font_style_table, 2, Vfont_width_table); | |
5187 | ||
29208e82 | 5188 | DEFVAR_LISP ("font-log", Vfont_log, doc: /* |
d0ab1ebe KH |
5189 | *Logging list of font related actions and results. |
5190 | The value t means to suppress the logging. | |
5191 | The initial value is set to nil if the environment variable | |
5192 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5193 | Vfont_log = Qnil; | |
5194 | ||
819e81df | 5195 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5196 | #ifdef HAVE_FREETYPE |
35027d0c | 5197 | syms_of_ftfont (); |
c2f5bfd6 | 5198 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5199 | syms_of_xfont (); |
5200 | syms_of_ftxfont (); | |
c2f5bfd6 | 5201 | #ifdef HAVE_XFT |
35027d0c | 5202 | syms_of_xftfont (); |
c2f5bfd6 KH |
5203 | #endif /* HAVE_XFT */ |
5204 | #endif /* HAVE_X_WINDOWS */ | |
5205 | #else /* not HAVE_FREETYPE */ | |
5206 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5207 | syms_of_xfont (); |
c2f5bfd6 KH |
5208 | #endif /* HAVE_X_WINDOWS */ |
5209 | #endif /* not HAVE_FREETYPE */ | |
5210 | #ifdef HAVE_BDFFONT | |
35027d0c | 5211 | syms_of_bdffont (); |
c2f5bfd6 KH |
5212 | #endif /* HAVE_BDFFONT */ |
5213 | #ifdef WINDOWSNT | |
35027d0c | 5214 | syms_of_w32font (); |
c2f5bfd6 | 5215 | #endif /* WINDOWSNT */ |
edfda783 AR |
5216 | #ifdef HAVE_NS |
5217 | syms_of_nsfont (); | |
5218 | #endif /* HAVE_NS */ | |
819e81df | 5219 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5220 | } |
885b7d09 | 5221 | |
652b9560 | 5222 | void |
971de7fb | 5223 | init_font (void) |
652b9560 KH |
5224 | { |
5225 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5226 | } |