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> | |
6e1a67fb | 24 | #include <float.h> |
c2f5bfd6 | 25 | #include <stdio.h> |
c2f5bfd6 | 26 | #include <ctype.h> |
d7306fe6 | 27 | #include <setjmp.h> |
c2f5bfd6 KH |
28 | |
29 | #include "lisp.h" | |
30 | #include "buffer.h" | |
31 | #include "frame.h" | |
10d16101 | 32 | #include "window.h" |
c2f5bfd6 KH |
33 | #include "dispextern.h" |
34 | #include "charset.h" | |
35 | #include "character.h" | |
36 | #include "composite.h" | |
37 | #include "fontset.h" | |
38 | #include "font.h" | |
39 | ||
43c0454d KH |
40 | #ifdef HAVE_X_WINDOWS |
41 | #include "xterm.h" | |
42 | #endif /* HAVE_X_WINDOWS */ | |
43 | ||
44 | #ifdef HAVE_NTGUI | |
45 | #include "w32term.h" | |
46 | #endif /* HAVE_NTGUI */ | |
47 | ||
edfda783 AR |
48 | #ifdef HAVE_NS |
49 | #include "nsterm.h" | |
50 | #endif /* HAVE_NS */ | |
51 | ||
7990b61a | 52 | Lisp_Object Qopentype; |
e0708580 | 53 | |
35027d0c | 54 | /* Important character set strings. */ |
9e1bb909 | 55 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 56 | |
edfda783 | 57 | #define DEFAULT_ENCODING Qiso8859_1 |
edfda783 | 58 | |
071132a9 KH |
59 | /* Unicode category `Cf'. */ |
60 | static Lisp_Object QCf; | |
61 | ||
c2f5bfd6 KH |
62 | /* Special vector of zero length. This is repeatedly used by (struct |
63 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 64 | static Lisp_Object null_vector; |
c2f5bfd6 | 65 | |
d0ab1ebe | 66 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ |
c2f5bfd6 KH |
67 | static Lisp_Object font_style_table; |
68 | ||
d0ab1ebe KH |
69 | /* Structure used for tables mapping weight, slant, and width numeric |
70 | values and their names. */ | |
71 | ||
72 | struct table_entry | |
73 | { | |
74 | int numeric; | |
75 | /* The first one is a valid name as a face attribute. | |
76 | The second one (if any) is a typical name in XLFD field. */ | |
5e2327cf | 77 | const char *names[5]; |
d0ab1ebe KH |
78 | }; |
79 | ||
80 | /* Table of weight numeric values and their names. This table must be | |
81 | sorted by numeric values in ascending order. */ | |
82 | ||
5e2327cf | 83 | static const struct table_entry weight_table[] = |
d0ab1ebe KH |
84 | { |
85 | { 0, { "thin" }}, | |
86 | { 20, { "ultra-light", "ultralight" }}, | |
87 | { 40, { "extra-light", "extralight" }}, | |
88 | { 50, { "light" }}, | |
89 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
c2694a06 | 90 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
91 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, |
92 | { 200, { "bold" }}, | |
93 | { 205, { "extra-bold", "extrabold" }}, | |
94 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
95 | }; | |
96 | ||
97 | /* Table of slant numeric values and their names. This table must be | |
98 | sorted by numeric values in ascending order. */ | |
99 | ||
5e2327cf | 100 | static const struct table_entry slant_table[] = |
d0ab1ebe KH |
101 | { |
102 | { 0, { "reverse-oblique", "ro" }}, | |
103 | { 10, { "reverse-italic", "ri" }}, | |
c2694a06 | 104 | { 100, { "normal", "r", "unspecified" }}, |
d0ab1ebe KH |
105 | { 200, { "italic" ,"i", "ot" }}, |
106 | { 210, { "oblique", "o" }} | |
107 | }; | |
108 | ||
109 | /* Table of width numeric values and their names. This table must be | |
110 | sorted by numeric values in ascending order. */ | |
111 | ||
5e2327cf | 112 | static const struct table_entry width_table[] = |
d0ab1ebe KH |
113 | { |
114 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
115 | { 63, { "extra-condensed", "extracondensed" }}, | |
116 | { 75, { "condensed", "compressed", "narrow" }}, | |
117 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
c2694a06 | 118 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
119 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, |
120 | { 125, { "expanded" }}, | |
121 | { 150, { "extra-expanded", "extraexpanded" }}, | |
122 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
123 | }; | |
124 | ||
2f7c71a1 AS |
125 | Lisp_Object QCfoundry; |
126 | static Lisp_Object QCadstyle, QCregistry; | |
c2f5bfd6 | 127 | /* Symbols representing keys of font extra info. */ |
35027d0c | 128 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
955cbe7b PE |
129 | Lisp_Object QCantialias, QCfont_entity; |
130 | static Lisp_Object QCfc_unknown_spec; | |
ec6fe57c | 131 | /* Symbols representing values of font spacing property. */ |
955cbe7b PE |
132 | static Lisp_Object Qc, Qm, Qd; |
133 | Lisp_Object Qp; | |
cf702558 CY |
134 | /* Special ADSTYLE properties to avoid fonts used for Latin |
135 | characters; used in xfont.c and ftfont.c. */ | |
136 | Lisp_Object Qja, Qko; | |
c2f5bfd6 | 137 | |
955cbe7b | 138 | static Lisp_Object QCuser_spec; |
42707278 | 139 | |
56dd2d86 | 140 | /* Alist of font registry symbols and the corresponding charset |
1701724c KH |
141 | information. The information is retrieved from |
142 | Vfont_encoding_alist on demand. | |
143 | ||
144 | Eash element has the form: | |
145 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
146 | or | |
147 | (REGISTRY . nil) | |
148 | ||
149 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
150 | encodes a character code to a glyph code of a font, and | |
151 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
152 | character is supported by a font. | |
153 | ||
154 | The latter form means that the information for REGISTRY couldn't be | |
155 | retrieved. */ | |
156 | static Lisp_Object font_charset_alist; | |
157 | ||
f697fff0 KH |
158 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
159 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
160 | here. */ |
161 | static struct font_driver_list *font_driver_list; | |
162 | ||
35027d0c KH |
163 | \f |
164 | ||
165 | /* Creaters of font-related Lisp object. */ | |
166 | ||
2f7c71a1 | 167 | static Lisp_Object |
971de7fb | 168 | font_make_spec (void) |
35027d0c KH |
169 | { |
170 | Lisp_Object font_spec; | |
171 | struct font_spec *spec | |
172 | = ((struct font_spec *) | |
173 | allocate_pseudovector (VECSIZE (struct font_spec), | |
174 | FONT_SPEC_MAX, PVEC_FONT)); | |
175 | XSETFONT (font_spec, spec); | |
176 | return font_spec; | |
177 | } | |
178 | ||
179 | Lisp_Object | |
971de7fb | 180 | font_make_entity (void) |
35027d0c KH |
181 | { |
182 | Lisp_Object font_entity; | |
183 | struct font_entity *entity | |
184 | = ((struct font_entity *) | |
185 | allocate_pseudovector (VECSIZE (struct font_entity), | |
186 | FONT_ENTITY_MAX, PVEC_FONT)); | |
187 | XSETFONT (font_entity, entity); | |
188 | return font_entity; | |
189 | } | |
190 | ||
51c13510 KH |
191 | /* Create a font-object whose structure size is SIZE. If ENTITY is |
192 | not nil, copy properties from ENTITY to the font-object. If | |
193 | PIXELSIZE is positive, set the `size' property to PIXELSIZE. */ | |
35027d0c | 194 | Lisp_Object |
971de7fb | 195 | font_make_object (int size, Lisp_Object entity, int pixelsize) |
35027d0c KH |
196 | { |
197 | Lisp_Object font_object; | |
198 | struct font *font | |
199 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
51c13510 KH |
200 | int i; |
201 | ||
35027d0c KH |
202 | XSETFONT (font_object, font); |
203 | ||
51c13510 KH |
204 | if (! NILP (entity)) |
205 | { | |
206 | for (i = 1; i < FONT_SPEC_MAX; i++) | |
207 | font->props[i] = AREF (entity, i); | |
208 | if (! NILP (AREF (entity, FONT_EXTRA_INDEX))) | |
209 | font->props[FONT_EXTRA_INDEX] | |
581e51e8 | 210 | = Fcopy_alist (AREF (entity, FONT_EXTRA_INDEX)); |
51c13510 KH |
211 | } |
212 | if (size > 0) | |
213 | font->props[FONT_SIZE_INDEX] = make_number (pixelsize); | |
35027d0c KH |
214 | return font_object; |
215 | } | |
216 | ||
217 | \f | |
218 | ||
f57e2426 J |
219 | static int font_pixel_size (FRAME_PTR f, Lisp_Object); |
220 | static Lisp_Object font_open_entity (FRAME_PTR, Lisp_Object, int); | |
221 | static Lisp_Object font_matching_entity (FRAME_PTR, Lisp_Object *, | |
222 | Lisp_Object); | |
2f7c71a1 | 223 | static unsigned font_encode_char (Lisp_Object, int); |
c2f5bfd6 KH |
224 | |
225 | /* Number of registered font drivers. */ | |
226 | static int num_font_drivers; | |
227 | ||
35027d0c KH |
228 | |
229 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
56dd2d86 EZ |
230 | If STR is "*", return nil. |
231 | If FORCE_SYMBOL is zero and all characters in STR are digits, | |
232 | return an integer. Otherwise, return a symbol interned from | |
2f286d4f | 233 | STR. */ |
35027d0c KH |
234 | |
235 | Lisp_Object | |
ccd6111c | 236 | font_intern_prop (const char *str, ptrdiff_t len, int force_symbol) |
35027d0c | 237 | { |
ccd6111c | 238 | ptrdiff_t i; |
d0ab1ebe | 239 | Lisp_Object tem; |
35027d0c | 240 | Lisp_Object obarray; |
14162469 | 241 | EMACS_INT nbytes, nchars; |
35027d0c KH |
242 | |
243 | if (len == 1 && *str == '*') | |
244 | return Qnil; | |
da3f12b2 | 245 | if (!force_symbol && 0 < len && '0' <= *str && *str <= '9') |
35027d0c KH |
246 | { |
247 | for (i = 1; i < len; i++) | |
da3f12b2 | 248 | if (! ('0' <= str[i] && str[i] <= '9')) |
35027d0c KH |
249 | break; |
250 | if (i == len) | |
ccd6111c | 251 | { |
da3f12b2 PE |
252 | EMACS_INT n; |
253 | ||
254 | i = 0; | |
255 | for (n = 0; (n += str[i++] - '0') <= MOST_POSITIVE_FIXNUM; n *= 10) | |
256 | { | |
257 | if (i == len) | |
258 | return make_number (n); | |
259 | if (MOST_POSITIVE_FIXNUM / 10 < n) | |
260 | break; | |
261 | } | |
262 | ||
263 | xsignal1 (Qoverflow_error, make_string (str, len)); | |
ccd6111c | 264 | } |
35027d0c KH |
265 | } |
266 | ||
545312c2 | 267 | /* The following code is copied from the function intern (in |
56dd2d86 | 268 | lread.c), and modified to suit our purpose. */ |
35027d0c | 269 | obarray = Vobarray; |
77b37c05 | 270 | if (!VECTORP (obarray) || ASIZE (obarray) == 0) |
35027d0c | 271 | obarray = check_obarray (obarray); |
72d36834 | 272 | parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes); |
545312c2 KH |
273 | if (len == nchars || len != nbytes) |
274 | /* CONTENTS contains no multibyte sequences or contains an invalid | |
275 | multibyte sequence. We'll make a unibyte string. */ | |
276 | tem = oblookup (obarray, str, len, len); | |
277 | else | |
278 | tem = oblookup (obarray, str, nchars, len); | |
35027d0c KH |
279 | if (SYMBOLP (tem)) |
280 | return tem; | |
545312c2 KH |
281 | if (len == nchars || len != nbytes) |
282 | tem = make_unibyte_string (str, len); | |
283 | else | |
284 | tem = make_multibyte_string (str, nchars, len); | |
285 | return Fintern (tem, obarray); | |
35027d0c KH |
286 | } |
287 | ||
9331887d | 288 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 289 | |
9331887d | 290 | static int |
971de7fb | 291 | font_pixel_size (FRAME_PTR f, Lisp_Object spec) |
9331887d | 292 | { |
819e81df | 293 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
294 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
295 | double point_size; | |
35027d0c | 296 | int dpi, pixel_size; |
d0ab1ebe | 297 | Lisp_Object val; |
51c01100 | 298 | |
9331887d KH |
299 | if (INTEGERP (size)) |
300 | return XINT (size); | |
301 | if (NILP (size)) | |
819e81df | 302 | return 0; |
d0ab1ebe | 303 | font_assert (FLOATP (size)); |
9331887d | 304 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
305 | val = AREF (spec, FONT_DPI_INDEX); |
306 | if (INTEGERP (val)) | |
17e28f6d | 307 | dpi = XINT (val); |
9331887d KH |
308 | else |
309 | dpi = f->resy; | |
310 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
311 | return pixel_size; | |
819e81df KH |
312 | #else |
313 | return 1; | |
314 | #endif | |
9331887d KH |
315 | } |
316 | ||
c2f5bfd6 | 317 | |
35027d0c KH |
318 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
319 | font vector. If VAL is not valid (i.e. not registered in | |
320 | font_style_table), return -1 if NOERROR is zero, and return a | |
321 | proper index if NOERROR is nonzero. In that case, register VAL in | |
56dd2d86 | 322 | font_style_table if VAL is a symbol, and return the closest index if |
35027d0c | 323 | VAL is an integer. */ |
c2f5bfd6 | 324 | |
35027d0c | 325 | int |
971de7fb | 326 | font_style_to_value (enum font_property_index prop, Lisp_Object val, int noerror) |
c2f5bfd6 | 327 | { |
35027d0c KH |
328 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
329 | int len = ASIZE (table); | |
c2f5bfd6 | 330 | |
35027d0c | 331 | if (SYMBOLP (val)) |
c2f5bfd6 | 332 | { |
13a547c6 | 333 | int i, j; |
25a48bd0 | 334 | char *s; |
35027d0c KH |
335 | Lisp_Object args[2], elt; |
336 | ||
337 | /* At first try exact match. */ | |
338 | for (i = 0; i < len; i++) | |
d0ab1ebe KH |
339 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
340 | if (EQ (val, AREF (AREF (table, i), j))) | |
341 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
342 | | (i << 4) | (j - 1)); | |
35027d0c | 343 | /* Try also with case-folding match. */ |
25a48bd0 | 344 | s = SSDATA (SYMBOL_NAME (val)); |
35027d0c | 345 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
346 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
347 | { | |
348 | elt = AREF (AREF (table, i), j); | |
25a48bd0 | 349 | if (xstrcasecmp (s, SSDATA (SYMBOL_NAME (elt))) == 0) |
d0ab1ebe KH |
350 | return ((XINT (AREF (AREF (table, i), 0)) << 8) |
351 | | (i << 4) | (j - 1)); | |
352 | } | |
35027d0c KH |
353 | if (! noerror) |
354 | return -1; | |
355 | if (len == 255) | |
356 | abort (); | |
c2694a06 | 357 | elt = Fmake_vector (make_number (2), make_number (100)); |
d0ab1ebe | 358 | ASET (elt, 1, val); |
35027d0c | 359 | args[0] = table; |
d0ab1ebe | 360 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 361 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
c2694a06 | 362 | return (100 << 8) | (i << 4); |
c2f5bfd6 | 363 | } |
35027d0c KH |
364 | else |
365 | { | |
d0ab1ebe | 366 | int i, last_n; |
35027d0c | 367 | int numeric = XINT (val); |
c2f5bfd6 | 368 | |
d0ab1ebe | 369 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 370 | { |
d0ab1ebe | 371 | int n = XINT (AREF (AREF (table, i), 0)); |
c2f5bfd6 | 372 | |
35027d0c | 373 | if (numeric == n) |
d0ab1ebe | 374 | return (n << 8) | (i << 4); |
35027d0c KH |
375 | if (numeric < n) |
376 | { | |
377 | if (! noerror) | |
378 | return -1; | |
d0ab1ebe KH |
379 | return ((i == 0 || n - numeric < numeric - last_n) |
380 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 381 | } |
35027d0c | 382 | last_n = n; |
35027d0c KH |
383 | } |
384 | if (! noerror) | |
385 | return -1; | |
d0ab1ebe | 386 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
387 | } |
388 | } | |
c2f5bfd6 KH |
389 | |
390 | Lisp_Object | |
971de7fb | 391 | font_style_symbolic (Lisp_Object font, enum font_property_index prop, int for_face) |
c2f5bfd6 | 392 | { |
3ef8c1b4 | 393 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
394 | Lisp_Object table, elt; |
395 | int i; | |
c2f5bfd6 | 396 | |
35027d0c KH |
397 | if (NILP (val)) |
398 | return Qnil; | |
399 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
d0ab1ebe KH |
400 | i = XINT (val) & 0xFF; |
401 | font_assert (((i >> 4) & 0xF) < ASIZE (table)); | |
402 | elt = AREF (table, ((i >> 4) & 0xF)); | |
403 | font_assert ((i & 0xF) + 1 < ASIZE (elt)); | |
ba3de0e8 | 404 | return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
6fe9826d JR |
405 | } |
406 | ||
819e81df KH |
407 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
408 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
409 | of the font. REPERTORY is a charset symbol or nil. */ | |
410 | ||
411 | Lisp_Object | |
971de7fb | 412 | find_font_encoding (Lisp_Object fontname) |
819e81df KH |
413 | { |
414 | Lisp_Object tail, elt; | |
415 | ||
416 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
417 | { | |
418 | elt = XCAR (tail); | |
419 | if (CONSP (elt) | |
420 | && STRINGP (XCAR (elt)) | |
421 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
422 | && (SYMBOLP (XCDR (elt)) | |
423 | ? CHARSETP (XCDR (elt)) | |
424 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
425 | return (XCDR (elt)); | |
426 | } | |
182ba28c | 427 | return Qnil; |
819e81df KH |
428 | } |
429 | ||
1701724c KH |
430 | /* Return encoding charset and repertory charset for REGISTRY in |
431 | ENCODING and REPERTORY correspondingly. If correct information for | |
432 | REGISTRY is available, return 0. Otherwise return -1. */ | |
433 | ||
434 | int | |
971de7fb | 435 | font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory) |
1701724c KH |
436 | { |
437 | Lisp_Object val; | |
438 | int encoding_id, repertory_id; | |
439 | ||
35027d0c | 440 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
441 | if (! NILP (val)) |
442 | { | |
443 | val = XCDR (val); | |
444 | if (NILP (val)) | |
445 | return -1; | |
446 | encoding_id = XINT (XCAR (val)); | |
447 | repertory_id = XINT (XCDR (val)); | |
448 | } | |
449 | else | |
450 | { | |
451 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
452 | if (SYMBOLP (val) && CHARSETP (val)) | |
453 | { | |
454 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
455 | } | |
456 | else if (CONSP (val)) | |
457 | { | |
458 | if (! CHARSETP (XCAR (val))) | |
459 | goto invalid_entry; | |
460 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
461 | if (NILP (XCDR (val))) | |
462 | repertory_id = -1; | |
463 | else | |
464 | { | |
465 | if (! CHARSETP (XCDR (val))) | |
466 | goto invalid_entry; | |
467 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
468 | } | |
51c01100 | 469 | } |
1701724c KH |
470 | else |
471 | goto invalid_entry; | |
472 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
473 | font_charset_alist | |
474 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
475 | } | |
476 | ||
477 | if (encoding) | |
478 | *encoding = CHARSET_FROM_ID (encoding_id); | |
479 | if (repertory) | |
480 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
481 | return 0; | |
482 | ||
483 | invalid_entry: | |
484 | font_charset_alist | |
485 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
486 | return -1; | |
487 | } | |
488 | ||
c2f5bfd6 | 489 | \f |
56dd2d86 | 490 | /* Font property value validators. See the comment of |
45eb10fb KH |
491 | font_property_table for the meaning of the arguments. */ |
492 | ||
f57e2426 J |
493 | static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object); |
494 | static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object); | |
495 | static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object); | |
496 | static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object); | |
497 | static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object); | |
498 | static int get_font_prop_index (Lisp_Object); | |
c2f5bfd6 KH |
499 | |
500 | static Lisp_Object | |
971de7fb | 501 | font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
502 | { |
503 | if (STRINGP (val)) | |
35027d0c KH |
504 | val = Fintern (val, Qnil); |
505 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 506 | val = Qerror; |
35027d0c KH |
507 | else if (EQ (prop, QCregistry)) |
508 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
509 | return val; |
510 | } | |
511 | ||
35027d0c | 512 | |
c2f5bfd6 | 513 | static Lisp_Object |
971de7fb | 514 | font_prop_validate_style (Lisp_Object style, Lisp_Object val) |
c2f5bfd6 | 515 | { |
35027d0c KH |
516 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
517 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
518 | : FONT_WIDTH_INDEX); | |
35027d0c | 519 | if (INTEGERP (val)) |
c2f5bfd6 | 520 | { |
13a547c6 | 521 | int n = XINT (val); |
64b900e3 | 522 | if (((n >> 4) & 0xF) |
35027d0c | 523 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
524 | val = Qerror; |
525 | else | |
526 | { | |
64b900e3 KH |
527 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
528 | ||
529 | if ((n & 0xF) + 1 >= ASIZE (elt)) | |
530 | val = Qerror; | |
531 | else if (XINT (AREF (elt, 0)) != (n >> 8)) | |
c2f5bfd6 KH |
532 | val = Qerror; |
533 | } | |
534 | } | |
35027d0c KH |
535 | else if (SYMBOLP (val)) |
536 | { | |
537 | int n = font_style_to_value (prop, val, 0); | |
538 | ||
539 | val = n >= 0 ? make_number (n) : Qerror; | |
540 | } | |
541 | else | |
542 | val = Qerror; | |
c2f5bfd6 KH |
543 | return val; |
544 | } | |
545 | ||
546 | static Lisp_Object | |
971de7fb | 547 | font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
548 | { |
549 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
550 | ? val : Qerror); | |
551 | } | |
552 | ||
553 | static Lisp_Object | |
971de7fb | 554 | font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val) |
ec6fe57c KH |
555 | { |
556 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
557 | return val; | |
3692570f KH |
558 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
559 | { | |
560 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
561 | ||
562 | if (spacing == 'c' || spacing == 'C') | |
563 | return make_number (FONT_SPACING_CHARCELL); | |
564 | if (spacing == 'm' || spacing == 'M') | |
565 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 566 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
567 | return make_number (FONT_SPACING_PROPORTIONAL); |
568 | if (spacing == 'd' || spacing == 'D') | |
569 | return make_number (FONT_SPACING_DUAL); | |
570 | } | |
ec6fe57c KH |
571 | return Qerror; |
572 | } | |
573 | ||
1701724c | 574 | static Lisp_Object |
971de7fb | 575 | font_prop_validate_otf (Lisp_Object prop, Lisp_Object val) |
1701724c KH |
576 | { |
577 | Lisp_Object tail, tmp; | |
578 | int i; | |
579 | ||
580 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
581 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
582 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
583 | if (! CONSP (val)) | |
584 | return Qerror; | |
585 | if (! SYMBOLP (XCAR (val))) | |
586 | return Qerror; | |
587 | tail = XCDR (val); | |
588 | if (NILP (tail)) | |
589 | return val; | |
590 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
591 | return Qerror; | |
592 | for (i = 0; i < 2; i++) | |
593 | { | |
594 | tail = XCDR (tail); | |
595 | if (NILP (tail)) | |
596 | return val; | |
597 | if (! CONSP (tail)) | |
598 | return Qerror; | |
599 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
600 | if (! SYMBOLP (XCAR (tmp))) | |
601 | return Qerror; | |
602 | if (! NILP (tmp)) | |
603 | return Qerror; | |
604 | } | |
605 | return val; | |
606 | } | |
607 | ||
56dd2d86 | 608 | /* Structure of known font property keys and validator of the |
ec6fe57c | 609 | values. */ |
04bab72c | 610 | static const struct |
c2f5bfd6 | 611 | { |
ec6fe57c | 612 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 613 | Lisp_Object *key; |
45eb10fb KH |
614 | /* Function to validate PROP's value VAL, or NULL if any value is |
615 | ok. The value is VAL or its regularized value if VAL is valid, | |
616 | and Qerror if not. */ | |
f57e2426 | 617 | Lisp_Object (*validater) (Lisp_Object prop, Lisp_Object val); |
ec6fe57c KH |
618 | } font_property_table[] = |
619 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
620 | { &QCfoundry, font_prop_validate_symbol }, |
621 | { &QCfamily, font_prop_validate_symbol }, | |
622 | { &QCadstyle, font_prop_validate_symbol }, | |
623 | { &QCregistry, font_prop_validate_symbol }, | |
624 | { &QCweight, font_prop_validate_style }, | |
625 | { &QCslant, font_prop_validate_style }, | |
626 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 627 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
628 | { &QCdpi, font_prop_validate_non_neg }, |
629 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
630 | { &QCavgwidth, font_prop_validate_non_neg }, |
631 | /* The order of the above entries must match with enum | |
632 | font_property_index. */ | |
633 | { &QClang, font_prop_validate_symbol }, | |
634 | { &QCscript, font_prop_validate_symbol }, | |
635 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
636 | }; |
637 | ||
45eb10fb | 638 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
639 | #define FONT_PROPERTY_TABLE_SIZE \ |
640 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
641 | ||
45eb10fb | 642 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 643 | already known property. */ |
45eb10fb | 644 | |
ec6fe57c | 645 | static int |
971de7fb | 646 | get_font_prop_index (Lisp_Object key) |
c2f5bfd6 | 647 | { |
35027d0c KH |
648 | int i; |
649 | ||
650 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
651 | if (EQ (key, *font_property_table[i].key)) | |
652 | return i; | |
ec6fe57c | 653 | return -1; |
c2f5bfd6 KH |
654 | } |
655 | ||
35027d0c KH |
656 | /* Validate the font property. The property key is specified by the |
657 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
658 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 659 | |
c2f5bfd6 | 660 | static Lisp_Object |
971de7fb | 661 | font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 662 | { |
35027d0c | 663 | Lisp_Object validated; |
c2f5bfd6 | 664 | |
1f09f444 KH |
665 | if (NILP (val)) |
666 | return val; | |
35027d0c KH |
667 | if (NILP (prop)) |
668 | prop = *font_property_table[idx].key; | |
669 | else | |
ec6fe57c | 670 | { |
35027d0c KH |
671 | idx = get_font_prop_index (prop); |
672 | if (idx < 0) | |
673 | return val; | |
ec6fe57c | 674 | } |
35027d0c KH |
675 | validated = (font_property_table[idx].validater) (prop, val); |
676 | if (EQ (validated, Qerror)) | |
677 | signal_error ("invalid font property", Fcons (prop, val)); | |
678 | return validated; | |
c2f5bfd6 | 679 | } |
51c01100 | 680 | |
35027d0c KH |
681 | |
682 | /* Store VAL as a value of extra font property PROP in FONT while | |
683 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 684 | |
01dbeb0b | 685 | Lisp_Object |
971de7fb | 686 | font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
9331887d KH |
687 | { |
688 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 689 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
690 | |
691 | if (NILP (slot)) | |
692 | { | |
35027d0c KH |
693 | Lisp_Object prev = Qnil; |
694 | ||
695 | while (CONSP (extra) | |
696 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
697 | prev = extra, extra = XCDR (extra); | |
581e51e8 | 698 | |
ce75f06e | 699 | if (NILP (prev)) |
581e51e8 | 700 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 701 | else |
581e51e8 | 702 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 703 | |
ec6fe57c | 704 | return val; |
9331887d | 705 | } |
9331887d | 706 | XSETCDR (slot, val); |
483670b5 KH |
707 | if (NILP (val)) |
708 | ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra)); | |
ec6fe57c | 709 | return val; |
9331887d KH |
710 | } |
711 | ||
c2f5bfd6 KH |
712 | \f |
713 | /* Font name parser and unparser */ | |
714 | ||
8ea90aa3 | 715 | static int parse_matrix (const char *); |
f57e2426 | 716 | static int font_expand_wildcards (Lisp_Object *, int); |
09d93395 | 717 | static int font_parse_name (char *, Lisp_Object); |
c2f5bfd6 | 718 | |
ec6fe57c | 719 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
720 | enum xlfd_field_index |
721 | { | |
722 | XLFD_FOUNDRY_INDEX, | |
723 | XLFD_FAMILY_INDEX, | |
724 | XLFD_WEIGHT_INDEX, | |
725 | XLFD_SLANT_INDEX, | |
726 | XLFD_SWIDTH_INDEX, | |
727 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
728 | XLFD_PIXEL_INDEX, |
729 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
730 | XLFD_RESX_INDEX, |
731 | XLFD_RESY_INDEX, | |
732 | XLFD_SPACING_INDEX, | |
733 | XLFD_AVGWIDTH_INDEX, | |
734 | XLFD_REGISTRY_INDEX, | |
735 | XLFD_ENCODING_INDEX, | |
736 | XLFD_LAST_INDEX | |
737 | }; | |
738 | ||
ec6fe57c | 739 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
740 | enum xlfd_field_mask |
741 | { | |
742 | XLFD_FOUNDRY_MASK = 0x0001, | |
743 | XLFD_FAMILY_MASK = 0x0002, | |
744 | XLFD_WEIGHT_MASK = 0x0004, | |
745 | XLFD_SLANT_MASK = 0x0008, | |
746 | XLFD_SWIDTH_MASK = 0x0010, | |
747 | XLFD_ADSTYLE_MASK = 0x0020, | |
748 | XLFD_PIXEL_MASK = 0x0040, | |
749 | XLFD_POINT_MASK = 0x0080, | |
750 | XLFD_RESX_MASK = 0x0100, | |
751 | XLFD_RESY_MASK = 0x0200, | |
752 | XLFD_SPACING_MASK = 0x0400, | |
753 | XLFD_AVGWIDTH_MASK = 0x0800, | |
754 | XLFD_REGISTRY_MASK = 0x1000, | |
755 | XLFD_ENCODING_MASK = 0x2000 | |
756 | }; | |
757 | ||
758 | ||
56dd2d86 | 759 | /* Parse P pointing to the pixel/point size field of the form |
c2f5bfd6 KH |
760 | `[A B C D]' which specifies a transformation matrix: |
761 | ||
762 | A B 0 | |
763 | C D 0 | |
764 | 0 0 1 | |
765 | ||
766 | by which all glyphs of the font are transformed. The spec says | |
767 | that scalar value N for the pixel/point size is equivalent to: | |
768 | A = N * resx/resy, B = C = 0, D = N. | |
769 | ||
770 | Return the scalar value N if the form is valid. Otherwise return | |
771 | -1. */ | |
772 | ||
773 | static int | |
8ea90aa3 | 774 | parse_matrix (const char *p) |
c2f5bfd6 KH |
775 | { |
776 | double matrix[4]; | |
777 | char *end; | |
778 | int i; | |
779 | ||
780 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
781 | { | |
782 | if (*p == '~') | |
783 | matrix[i] = - strtod (p + 1, &end); | |
784 | else | |
785 | matrix[i] = strtod (p, &end); | |
786 | p = end; | |
787 | } | |
788 | return (i == 4 ? (int) matrix[3] : -1); | |
789 | } | |
790 | ||
4485a28e | 791 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
56dd2d86 | 792 | multiple fields to fill in all 14 XLFD fields while restricting a |
4485a28e KH |
793 | field position by its contents. */ |
794 | ||
ec6fe57c | 795 | static int |
971de7fb | 796 | font_expand_wildcards (Lisp_Object *field, int n) |
4485a28e KH |
797 | { |
798 | /* Copy of FIELD. */ | |
799 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
800 | /* Array of information about where this element can go. Nth | |
801 | element is for Nth element of FIELD. */ | |
802 | struct { | |
803 | /* Minimum possible field. */ | |
804 | int from; | |
805 | /* Maxinum possible field. */ | |
806 | int to; | |
807 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
808 | int mask; | |
809 | } range[XLFD_LAST_INDEX]; | |
810 | int i, j; | |
ec6fe57c | 811 | int range_from, range_to; |
4485a28e KH |
812 | unsigned range_mask; |
813 | ||
814 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
815 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
816 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 817 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 818 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
819 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
820 | ||
821 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
822 | field. The value is shifted to left one bit by one in the | |
823 | following loop. */ | |
824 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
825 | range_mask = (range_mask << 1) | 1; | |
826 | ||
ec6fe57c KH |
827 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
828 | position-based retriction for FIELD[I]. */ | |
829 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
830 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 831 | { |
4485a28e KH |
832 | Lisp_Object val = field[i]; |
833 | ||
834 | tmp[i] = val; | |
835 | if (NILP (val)) | |
836 | { | |
837 | /* Wildcard. */ | |
838 | range[i].from = range_from; | |
839 | range[i].to = range_to; | |
840 | range[i].mask = range_mask; | |
841 | } | |
842 | else | |
843 | { | |
844 | /* The triplet FROM, TO, and MASK is a value-based | |
845 | retriction for FIELD[I]. */ | |
846 | int from, to; | |
847 | unsigned mask; | |
848 | ||
849 | if (INTEGERP (val)) | |
850 | { | |
851 | int numeric = XINT (val); | |
852 | ||
ef18374f KH |
853 | if (i + 1 == n) |
854 | from = to = XLFD_ENCODING_INDEX, | |
855 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
856 | else if (numeric == 0) |
857 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
858 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
859 | else if (numeric <= 48) |
860 | from = to = XLFD_PIXEL_INDEX, | |
861 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 862 | else |
ec6fe57c | 863 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
864 | mask = XLFD_LARGENUM_MASK; |
865 | } | |
35027d0c | 866 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
867 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
868 | mask = XLFD_NULL_MASK; | |
869 | else if (i == 0) | |
870 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
871 | else if (i + 1 == n) | |
872 | { | |
873 | Lisp_Object name = SYMBOL_NAME (val); | |
874 | ||
875 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
876 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
877 | mask = XLFD_REGENC_MASK; | |
878 | else | |
879 | from = to = XLFD_ENCODING_INDEX, | |
880 | mask = XLFD_ENCODING_MASK; | |
881 | } | |
ef18374f KH |
882 | else if (range_from <= XLFD_WEIGHT_INDEX |
883 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 884 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 885 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
886 | else if (range_from <= XLFD_SLANT_INDEX |
887 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 888 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 889 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
890 | else if (range_from <= XLFD_SWIDTH_INDEX |
891 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 892 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
893 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
894 | else | |
895 | { | |
ec6fe57c | 896 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
897 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
898 | else | |
899 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
900 | mask = XLFD_SYMBOL_MASK; | |
901 | } | |
902 | ||
903 | /* Merge position-based and value-based restrictions. */ | |
904 | mask &= range_mask; | |
905 | while (from < range_from) | |
906 | mask &= ~(1 << from++); | |
907 | while (from < 14 && ! (mask & (1 << from))) | |
908 | from++; | |
909 | while (to > range_to) | |
910 | mask &= ~(1 << to--); | |
911 | while (to >= 0 && ! (mask & (1 << to))) | |
912 | to--; | |
913 | if (from > to) | |
914 | return -1; | |
915 | range[i].from = from; | |
916 | range[i].to = to; | |
917 | range[i].mask = mask; | |
918 | ||
919 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
920 | { |
921 | /* The range is narrowed by value-based restrictions. | |
922 | Reflect it to the other fields. */ | |
923 | ||
924 | /* Following fields should be after FROM. */ | |
925 | range_from = from; | |
926 | /* Preceding fields should be before TO. */ | |
927 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
928 | { | |
929 | /* Check FROM for non-wildcard field. */ | |
930 | if (! NILP (tmp[j]) && range[j].from < from) | |
931 | { | |
932 | while (range[j].from < from) | |
933 | range[j].mask &= ~(1 << range[j].from++); | |
934 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
935 | from++; | |
936 | range[j].from = from; | |
937 | } | |
938 | else | |
939 | from = range[j].from; | |
940 | if (range[j].to > to) | |
941 | { | |
942 | while (range[j].to > to) | |
943 | range[j].mask &= ~(1 << range[j].to--); | |
944 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
945 | to--; | |
946 | range[j].to = to; | |
947 | } | |
948 | else | |
949 | to = range[j].to; | |
950 | if (from > to) | |
951 | return -1; | |
952 | } | |
953 | } | |
4485a28e KH |
954 | } |
955 | } | |
956 | ||
957 | /* Decide all fileds from restrictions in RANGE. */ | |
958 | for (i = j = 0; i < n ; i++) | |
959 | { | |
960 | if (j < range[i].from) | |
961 | { | |
962 | if (i == 0 || ! NILP (tmp[i - 1])) | |
963 | /* None of TMP[X] corresponds to Jth field. */ | |
964 | return -1; | |
965 | for (; j < range[i].from; j++) | |
966 | field[j] = Qnil; | |
967 | } | |
968 | field[j++] = tmp[i]; | |
969 | } | |
970 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
971 | return -1; | |
972 | for (; j < XLFD_LAST_INDEX; j++) | |
973 | field[j] = Qnil; | |
974 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
975 | field[XLFD_ENCODING_INDEX] | |
976 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
977 | return 0; | |
978 | } | |
979 | ||
43a1d19b | 980 | |
ef18374f | 981 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
982 | (font-spec or font-entity). Size property of FONT is set as |
983 | follows: | |
984 | specified XLFD fields FONT property | |
985 | --------------------- ------------- | |
986 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
987 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
988 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
989 | ||
ec6fe57c | 990 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 991 | |
ec6fe57c KH |
992 | FONT is usually a font-spec, but when this function is called from |
993 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 994 | a fully specified XLFD. */ |
c2f5bfd6 KH |
995 | |
996 | int | |
09d93395 | 997 | font_parse_xlfd (char *name, Lisp_Object font) |
c2f5bfd6 | 998 | { |
b5b8c9e5 | 999 | ptrdiff_t len = strlen (name); |
35027d0c | 1000 | int i, j, n; |
cf23b845 | 1001 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 1002 | Lisp_Object val; |
4485a28e | 1003 | char *p; |
c2f5bfd6 | 1004 | |
e3928081 | 1005 | if (len > 255 || !len) |
c2f5bfd6 KH |
1006 | /* Maximum XLFD name length is 255. */ |
1007 | return -1; | |
ec6fe57c | 1008 | /* Accept "*-.." as a fully specified XLFD. */ |
e3928081 | 1009 | if (name[0] == '*' && (len == 1 || name[1] == '-')) |
ec6fe57c KH |
1010 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; |
1011 | else | |
1012 | i = 0; | |
1013 | for (p = name + i; *p; p++) | |
35027d0c KH |
1014 | if (*p == '-') |
1015 | { | |
1016 | f[i++] = p + 1; | |
1017 | if (i == XLFD_LAST_INDEX) | |
1018 | break; | |
1019 | } | |
1020 | f[i] = name + len; | |
c2f5bfd6 | 1021 | |
2f286d4f KH |
1022 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1023 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1024 | |
ec6fe57c | 1025 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1026 | { |
35027d0c | 1027 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1028 | int pixel_size; |
1029 | ||
2f286d4f KH |
1030 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1031 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1032 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1033 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1034 | { |
2f286d4f | 1035 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1036 | if (! NILP (val)) |
4485a28e | 1037 | { |
2f286d4f | 1038 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1039 | return -1; |
1040 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1041 | } |
1042 | } | |
2f286d4f | 1043 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1044 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1045 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1046 | else | |
1047 | ASET (font, FONT_REGISTRY_INDEX, | |
1048 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1049 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1050 | 1)); | |
ec6fe57c KH |
1051 | p = f[XLFD_PIXEL_INDEX]; |
1052 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1053 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1054 | else |
1055 | { | |
35027d0c KH |
1056 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1057 | if (INTEGERP (val)) | |
ec6fe57c | 1058 | ASET (font, FONT_SIZE_INDEX, val); |
b57d9029 KH |
1059 | else if (FONT_ENTITY_P (font)) |
1060 | return -1; | |
ec6fe57c KH |
1061 | else |
1062 | { | |
1063 | double point_size = -1; | |
1064 | ||
d0ab1ebe | 1065 | font_assert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1066 | p = f[XLFD_POINT_INDEX]; |
1067 | if (*p == '[') | |
1068 | point_size = parse_matrix (p); | |
1069 | else if (isdigit (*p)) | |
1070 | point_size = atoi (p), point_size /= 10; | |
1071 | if (point_size >= 0) | |
1072 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1073 | } |
1074 | } | |
ec6fe57c | 1075 | |
087048cd KH |
1076 | val = INTERN_FIELD (XLFD_RESY_INDEX); |
1077 | if (! NILP (val) && ! INTEGERP (val)) | |
1078 | return -1; | |
1079 | ASET (font, FONT_DPI_INDEX, val); | |
35027d0c KH |
1080 | val = INTERN_FIELD (XLFD_SPACING_INDEX); |
1081 | if (! NILP (val)) | |
ec6fe57c | 1082 | { |
35027d0c KH |
1083 | val = font_prop_validate_spacing (QCspacing, val); |
1084 | if (! INTEGERP (val)) | |
1085 | return -1; | |
1086 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1087 | } |
ec6fe57c KH |
1088 | p = f[XLFD_AVGWIDTH_INDEX]; |
1089 | if (*p == '~') | |
1090 | p++; | |
087048cd KH |
1091 | val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0); |
1092 | if (! NILP (val) && ! INTEGERP (val)) | |
1093 | return -1; | |
1094 | ASET (font, FONT_AVGWIDTH_INDEX, val); | |
4485a28e KH |
1095 | } |
1096 | else | |
c2f5bfd6 | 1097 | { |
4485a28e | 1098 | int wild_card_found = 0; |
ec6fe57c | 1099 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1100 | |
35027d0c KH |
1101 | if (FONT_ENTITY_P (font)) |
1102 | return -1; | |
ec6fe57c | 1103 | for (j = 0; j < i; j++) |
4485a28e | 1104 | { |
ec6fe57c | 1105 | if (*f[j] == '*') |
4485a28e | 1106 | { |
ec6fe57c KH |
1107 | if (f[j][1] && f[j][1] != '-') |
1108 | return -1; | |
1109 | prop[j] = Qnil; | |
1110 | wild_card_found = 1; | |
1111 | } | |
ec6fe57c | 1112 | else if (j + 1 < i) |
35027d0c | 1113 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1114 | else |
2f286d4f | 1115 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1116 | } |
1117 | if (! wild_card_found) | |
c2f5bfd6 | 1118 | return -1; |
ec6fe57c | 1119 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1120 | return -1; |
ec6fe57c | 1121 | |
35027d0c KH |
1122 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1123 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1124 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1125 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1126 | if (! NILP (prop[i])) |
35027d0c KH |
1127 | { |
1128 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1129 | return -1; | |
1130 | ASET (font, j, make_number (n)); | |
1131 | } | |
1132 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1133 | val = prop[XLFD_REGISTRY_INDEX]; |
1134 | if (NILP (val)) | |
c2f5bfd6 | 1135 | { |
ec6fe57c KH |
1136 | val = prop[XLFD_ENCODING_INDEX]; |
1137 | if (! NILP (val)) | |
35027d0c | 1138 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1139 | } |
ec6fe57c | 1140 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1141 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1142 | else |
35027d0c KH |
1143 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1144 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1145 | if (! NILP (val)) |
35027d0c | 1146 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1147 | |
1148 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1149 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1150 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1151 | { |
ec6fe57c | 1152 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1153 | |
ec6fe57c KH |
1154 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1155 | } | |
c2f5bfd6 | 1156 | |
35027d0c KH |
1157 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1158 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1159 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1160 | { | |
1161 | val = font_prop_validate_spacing (QCspacing, | |
1162 | prop[XLFD_SPACING_INDEX]); | |
1163 | if (! INTEGERP (val)) | |
1164 | return -1; | |
1165 | ASET (font, FONT_SPACING_INDEX, val); | |
1166 | } | |
ec6fe57c | 1167 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1168 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1169 | } |
1170 | ||
ec6fe57c | 1171 | return 0; |
c2f5bfd6 KH |
1172 | } |
1173 | ||
1174 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1175 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1176 | 0, use PIXEL_SIZE instead. */ | |
1177 | ||
1178 | int | |
971de7fb | 1179 | font_unparse_xlfd (Lisp_Object font, int pixel_size, char *name, int nbytes) |
c2f5bfd6 | 1180 | { |
e663c700 PE |
1181 | char *p; |
1182 | const char *f[XLFD_REGISTRY_INDEX + 1]; | |
c2f5bfd6 | 1183 | Lisp_Object val; |
c21721cc | 1184 | int i, j, len; |
c2f5bfd6 | 1185 | |
d0ab1ebe | 1186 | font_assert (FONTP (font)); |
c2f5bfd6 KH |
1187 | |
1188 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1189 | i++, j++) | |
1190 | { | |
1191 | if (i == FONT_ADSTYLE_INDEX) | |
1192 | j = XLFD_ADSTYLE_INDEX; | |
1193 | else if (i == FONT_REGISTRY_INDEX) | |
1194 | j = XLFD_REGISTRY_INDEX; | |
1195 | val = AREF (font, i); | |
1196 | if (NILP (val)) | |
1bb1d99b KH |
1197 | { |
1198 | if (j == XLFD_REGISTRY_INDEX) | |
c21721cc | 1199 | f[j] = "*-*"; |
1bb1d99b | 1200 | else |
c21721cc | 1201 | f[j] = "*"; |
1bb1d99b | 1202 | } |
c2f5bfd6 KH |
1203 | else |
1204 | { | |
1205 | if (SYMBOLP (val)) | |
1206 | val = SYMBOL_NAME (val); | |
1bb1d99b | 1207 | if (j == XLFD_REGISTRY_INDEX |
51b59d79 | 1208 | && ! strchr (SSDATA (val), '-')) |
1bb1d99b KH |
1209 | { |
1210 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
c21721cc PE |
1211 | ptrdiff_t alloc = SBYTES (val) + 4; |
1212 | if (nbytes <= alloc) | |
1213 | return -1; | |
1214 | f[j] = p = alloca (alloc); | |
1215 | sprintf (p, "%s%s-*", SDATA (val), | |
1216 | "*" + (SDATA (val)[SBYTES (val) - 1] == '*')); | |
1bb1d99b KH |
1217 | } |
1218 | else | |
c21721cc | 1219 | f[j] = SSDATA (val); |
c2f5bfd6 KH |
1220 | } |
1221 | } | |
1222 | ||
1223 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1224 | i++, j++) | |
1225 | { | |
35027d0c | 1226 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 | 1227 | if (NILP (val)) |
c21721cc | 1228 | f[j] = "*"; |
c2f5bfd6 KH |
1229 | else |
1230 | { | |
35027d0c | 1231 | val = SYMBOL_NAME (val); |
c21721cc | 1232 | f[j] = SSDATA (val); |
c2f5bfd6 KH |
1233 | } |
1234 | } | |
1235 | ||
1236 | val = AREF (font, FONT_SIZE_INDEX); | |
d0ab1ebe | 1237 | font_assert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1238 | if (INTEGERP (val)) |
1239 | { | |
c21721cc PE |
1240 | EMACS_INT v = XINT (val); |
1241 | if (v <= 0) | |
1242 | v = pixel_size; | |
1243 | if (v > 0) | |
81aefea4 | 1244 | { |
c21721cc PE |
1245 | f[XLFD_PIXEL_INDEX] = p = |
1246 | alloca (sizeof "-*" + INT_STRLEN_BOUND (EMACS_INT)); | |
1247 | sprintf (p, "%"pI"d-*", v); | |
81aefea4 SM |
1248 | } |
1249 | else | |
c21721cc | 1250 | f[XLFD_PIXEL_INDEX] = "*-*"; |
c2f5bfd6 KH |
1251 | } |
1252 | else if (FLOATP (val)) | |
1253 | { | |
c21721cc PE |
1254 | double v = XFLOAT_DATA (val) * 10; |
1255 | f[XLFD_PIXEL_INDEX] = p = alloca (sizeof "*-" + 1 + DBL_MAX_10_EXP + 1); | |
1256 | sprintf (p, "*-%.0f", v); | |
c2f5bfd6 KH |
1257 | } |
1258 | else | |
c21721cc | 1259 | f[XLFD_PIXEL_INDEX] = "*-*"; |
ec6fe57c | 1260 | |
35027d0c | 1261 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1262 | { |
c21721cc PE |
1263 | EMACS_INT v = XINT (AREF (font, FONT_DPI_INDEX)); |
1264 | f[XLFD_RESX_INDEX] = p = | |
1265 | alloca (sizeof "-" + 2 * INT_STRLEN_BOUND (EMACS_INT)); | |
1266 | sprintf (p, "%"pI"d-%"pI"d", v, v); | |
c2f5bfd6 KH |
1267 | } |
1268 | else | |
c21721cc | 1269 | f[XLFD_RESX_INDEX] = "*-*"; |
35027d0c | 1270 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
ec6fe57c | 1271 | { |
c21721cc | 1272 | EMACS_INT spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1273 | |
35027d0c KH |
1274 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1275 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1276 | : spacing <= FONT_SPACING_MONO ? "m" | |
1277 | : "c"); | |
ec6fe57c | 1278 | } |
35027d0c | 1279 | else |
c21721cc | 1280 | f[XLFD_SPACING_INDEX] = "*"; |
35027d0c KH |
1281 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
1282 | { | |
c21721cc PE |
1283 | f[XLFD_AVGWIDTH_INDEX] = p = alloca (INT_BUFSIZE_BOUND (EMACS_INT)); |
1284 | sprintf (p, "%"pI"d", XINT (AREF (font, FONT_AVGWIDTH_INDEX))); | |
35027d0c KH |
1285 | } |
1286 | else | |
c21721cc PE |
1287 | f[XLFD_AVGWIDTH_INDEX] = "*"; |
1288 | len = snprintf (name, nbytes, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", | |
c2f5bfd6 KH |
1289 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1290 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1291 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1292 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1293 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1294 | f[XLFD_REGISTRY_INDEX]); | |
c21721cc | 1295 | return len < nbytes ? len : -1; |
c2f5bfd6 KH |
1296 | } |
1297 | ||
8c102d5b CY |
1298 | /* Parse NAME (null terminated) and store information in FONT |
1299 | (font-spec or font-entity). NAME is supplied in either the | |
1300 | Fontconfig or GTK font name format. If NAME is successfully | |
1301 | parsed, return 0. Otherwise return -1. | |
1302 | ||
1303 | The fontconfig format is | |
1304 | ||
1305 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1306 | ||
1307 | The GTK format is | |
1308 | ||
1309 | FAMILY [PROPS...] [SIZE] | |
1310 | ||
1311 | This function tries to guess which format it is. */ | |
ef18374f | 1312 | |
2f7c71a1 | 1313 | static int |
09d93395 | 1314 | font_parse_fcname (char *name, Lisp_Object font) |
ef18374f | 1315 | { |
8c102d5b CY |
1316 | char *p, *q; |
1317 | char *size_beg = NULL, *size_end = NULL; | |
1318 | char *props_beg = NULL, *family_end = NULL; | |
b5b8c9e5 | 1319 | ptrdiff_t len = strlen (name); |
ef18374f | 1320 | |
ec6fe57c KH |
1321 | if (len == 0) |
1322 | return -1; | |
8c102d5b CY |
1323 | |
1324 | for (p = name; *p; p++) | |
ef18374f | 1325 | { |
8c102d5b CY |
1326 | if (*p == '\\' && p[1]) |
1327 | p++; | |
1328 | else if (*p == ':') | |
ef18374f | 1329 | { |
59facb78 | 1330 | props_beg = family_end = p; |
8c102d5b CY |
1331 | break; |
1332 | } | |
1333 | else if (*p == '-') | |
1334 | { | |
b1868a1a | 1335 | int decimal = 0, size_found = 1; |
8c102d5b | 1336 | for (q = p + 1; *q && *q != ':'; q++) |
b1868a1a | 1337 | if (! isdigit(*q)) |
8c102d5b | 1338 | { |
b1868a1a CY |
1339 | if (*q != '.' || decimal) |
1340 | { | |
1341 | size_found = 0; | |
1342 | break; | |
1343 | } | |
1344 | decimal = 1; | |
8c102d5b CY |
1345 | } |
1346 | if (size_found) | |
1347 | { | |
1348 | family_end = p; | |
1349 | size_beg = p + 1; | |
1350 | size_end = q; | |
1351 | break; | |
1352 | } | |
ef18374f | 1353 | } |
ef18374f | 1354 | } |
9331887d | 1355 | |
8c102d5b CY |
1356 | if (family_end) |
1357 | { | |
637fa988 JD |
1358 | Lisp_Object extra_props = Qnil; |
1359 | ||
8c102d5b CY |
1360 | /* A fontconfig name with size and/or property data. */ |
1361 | if (family_end > name) | |
1362 | { | |
1363 | Lisp_Object family; | |
1364 | family = font_intern_prop (name, family_end - name, 1); | |
1365 | ASET (font, FONT_FAMILY_INDEX, family); | |
1366 | } | |
1367 | if (size_beg) | |
1368 | { | |
1369 | double point_size = strtod (size_beg, &size_end); | |
1370 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1371 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1372 | props_beg = size_end; |
8c102d5b CY |
1373 | } |
1374 | if (props_beg) | |
1375 | { | |
d26424c5 | 1376 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1377 | Lisp_Object val; |
8c102d5b | 1378 | |
59facb78 | 1379 | for (p = props_beg; *p; p = q) |
8c102d5b | 1380 | { |
8c102d5b | 1381 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1382 | if (*q != '=') |
1383 | { | |
1384 | /* Must be an enumerated value. */ | |
b5b8c9e5 | 1385 | ptrdiff_t word_len; |
59facb78 CY |
1386 | p = p + 1; |
1387 | word_len = q - p; | |
8c102d5b | 1388 | val = font_intern_prop (p, q - p, 1); |
9277a69d | 1389 | |
4ec88040 AS |
1390 | #define PROP_MATCH(STR) (word_len == strlen (STR) \ |
1391 | && memcmp (p, STR, strlen (STR)) == 0) | |
1392 | ||
1393 | if (PROP_MATCH ("light") | |
1394 | || PROP_MATCH ("medium") | |
1395 | || PROP_MATCH ("demibold") | |
1396 | || PROP_MATCH ("bold") | |
1397 | || PROP_MATCH ("black")) | |
8c102d5b | 1398 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); |
4ec88040 AS |
1399 | else if (PROP_MATCH ("roman") |
1400 | || PROP_MATCH ("italic") | |
1401 | || PROP_MATCH ("oblique")) | |
8c102d5b | 1402 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); |
4ec88040 | 1403 | else if (PROP_MATCH ("charcell")) |
8c102d5b CY |
1404 | ASET (font, FONT_SPACING_INDEX, |
1405 | make_number (FONT_SPACING_CHARCELL)); | |
4ec88040 | 1406 | else if (PROP_MATCH ("mono")) |
8c102d5b CY |
1407 | ASET (font, FONT_SPACING_INDEX, |
1408 | make_number (FONT_SPACING_MONO)); | |
4ec88040 | 1409 | else if (PROP_MATCH ("proportional")) |
8c102d5b CY |
1410 | ASET (font, FONT_SPACING_INDEX, |
1411 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1412 | #undef PROP_MATCH |
8c102d5b | 1413 | } |
59facb78 | 1414 | else |
8c102d5b | 1415 | { |
59facb78 | 1416 | /* KEY=VAL pairs */ |
8c102d5b | 1417 | Lisp_Object key; |
59facb78 | 1418 | int prop; |
51c01100 | 1419 | |
59facb78 | 1420 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1421 | prop = FONT_SIZE_INDEX; |
1422 | else | |
1423 | { | |
1424 | key = font_intern_prop (p, q - p, 1); | |
1425 | prop = get_font_prop_index (key); | |
1426 | } | |
77989187 | 1427 | |
8c102d5b CY |
1428 | p = q + 1; |
1429 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1430 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1431 | |
d26424c5 KH |
1432 | if (prop >= FONT_FOUNDRY_INDEX |
1433 | && prop < FONT_EXTRA_INDEX) | |
637fa988 | 1434 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); |
ce75f06e | 1435 | else |
637fa988 JD |
1436 | { |
1437 | extra_props = nconc2 (extra_props, | |
1438 | Fcons (Fcons (key, val), Qnil)); | |
1439 | } | |
8c102d5b | 1440 | } |
d26424c5 | 1441 | p = q; |
8c102d5b | 1442 | } |
8c102d5b | 1443 | } |
637fa988 JD |
1444 | |
1445 | if (! NILP (extra_props)) | |
1446 | { | |
1447 | struct font_driver_list *driver_list = font_driver_list; | |
1448 | for ( ; driver_list; driver_list = driver_list->next) | |
1449 | if (driver_list->driver->filter_properties) | |
1450 | (*driver_list->driver->filter_properties) (font, extra_props); | |
1451 | } | |
ce75f06e | 1452 | |
8c102d5b CY |
1453 | } |
1454 | else | |
ef18374f | 1455 | { |
8c102d5b CY |
1456 | /* Either a fontconfig-style name with no size and property |
1457 | data, or a GTK-style name. */ | |
6608a7d8 CY |
1458 | Lisp_Object weight = Qnil, slant = Qnil; |
1459 | Lisp_Object width = Qnil, size = Qnil; | |
1460 | char *word_start; | |
b5b8c9e5 | 1461 | ptrdiff_t word_len; |
6608a7d8 CY |
1462 | |
1463 | /* Scan backwards from the end, looking for a size. */ | |
1464 | for (p = name + len - 1; p >= name; p--) | |
1465 | if (!isdigit (*p)) | |
1466 | break; | |
1467 | ||
1468 | if ((p < name + len - 1) && ((p + 1 == name) || *p == ' ')) | |
1469 | /* Found a font size. */ | |
1470 | size = make_float (strtod (p + 1, NULL)); | |
1471 | else | |
1472 | p = name + len; | |
ef18374f | 1473 | |
6608a7d8 CY |
1474 | /* Now P points to the termination of the string, sans size. |
1475 | Scan backwards, looking for font properties. */ | |
1476 | for (; p > name; p = q) | |
ef18374f | 1477 | { |
6608a7d8 | 1478 | for (q = p - 1; q >= name; q--) |
9331887d | 1479 | { |
6608a7d8 CY |
1480 | if (q > name && *(q-1) == '\\') |
1481 | --q; /* Skip quoting backslashes. */ | |
1482 | else if (*q == ' ') | |
1483 | break; | |
027a33c0 | 1484 | } |
8c102d5b | 1485 | |
6608a7d8 CY |
1486 | word_start = q + 1; |
1487 | word_len = p - word_start; | |
8c102d5b | 1488 | |
4ec88040 AS |
1489 | #define PROP_MATCH(STR) \ |
1490 | (word_len == strlen (STR) \ | |
1491 | && memcmp (word_start, STR, strlen (STR)) == 0) | |
1492 | #define PROP_SAVE(VAR, STR) \ | |
1493 | (VAR = NILP (VAR) ? font_intern_prop (STR, strlen (STR), 1) : VAR) | |
1494 | ||
1495 | if (PROP_MATCH ("Ultra-Light")) | |
1496 | PROP_SAVE (weight, "ultra-light"); | |
1497 | else if (PROP_MATCH ("Light")) | |
1498 | PROP_SAVE (weight, "light"); | |
1499 | else if (PROP_MATCH ("Book")) | |
1500 | PROP_SAVE (weight, "book"); | |
1501 | else if (PROP_MATCH ("Medium")) | |
1502 | PROP_SAVE (weight, "medium"); | |
1503 | else if (PROP_MATCH ("Semi-Bold")) | |
1504 | PROP_SAVE (weight, "semi-bold"); | |
1505 | else if (PROP_MATCH ("Bold")) | |
1506 | PROP_SAVE (weight, "bold"); | |
1507 | else if (PROP_MATCH ("Italic")) | |
1508 | PROP_SAVE (slant, "italic"); | |
1509 | else if (PROP_MATCH ("Oblique")) | |
1510 | PROP_SAVE (slant, "oblique"); | |
1511 | else if (PROP_MATCH ("Semi-Condensed")) | |
1512 | PROP_SAVE (width, "semi-condensed"); | |
1513 | else if (PROP_MATCH ("Condensed")) | |
1514 | PROP_SAVE (width, "condensed"); | |
6608a7d8 CY |
1515 | /* An unknown word must be part of the font name. */ |
1516 | else | |
fe69a722 | 1517 | { |
6608a7d8 CY |
1518 | family_end = p; |
1519 | break; | |
fe69a722 | 1520 | } |
ef18374f | 1521 | } |
8c102d5b | 1522 | #undef PROP_MATCH |
372fb76b | 1523 | #undef PROP_SAVE |
9ba6fd41 | 1524 | |
8c102d5b | 1525 | if (family_end) |
6608a7d8 CY |
1526 | ASET (font, FONT_FAMILY_INDEX, |
1527 | font_intern_prop (name, family_end - name, 1)); | |
1528 | if (!NILP (size)) | |
1529 | ASET (font, FONT_SIZE_INDEX, size); | |
1530 | if (!NILP (weight)) | |
1531 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, weight); | |
1532 | if (!NILP (slant)) | |
1533 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, slant); | |
1534 | if (!NILP (width)) | |
1535 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, width); | |
8c102d5b | 1536 | } |
17ab8f5d | 1537 | |
9331887d | 1538 | return 0; |
ef18374f KH |
1539 | } |
1540 | ||
1541 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1542 | NAME (NBYTES length), and return the name length. If | |
1543 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1544 | ||
1545 | int | |
09d93395 | 1546 | font_unparse_fcname (Lisp_Object font, int pixel_size, char *name, int nbytes) |
ef18374f | 1547 | { |
b1868a1a | 1548 | Lisp_Object family, foundry; |
c21721cc | 1549 | Lisp_Object val; |
ec6fe57c | 1550 | int point_size; |
b5b8c9e5 | 1551 | int i; |
ef18374f | 1552 | char *p; |
c21721cc | 1553 | char *lim; |
a9262bb8 | 1554 | Lisp_Object styles[3]; |
675e2c69 | 1555 | const char *style_names[3] = { "weight", "slant", "width" }; |
ef18374f | 1556 | |
b1868a1a CY |
1557 | family = AREF (font, FONT_FAMILY_INDEX); |
1558 | if (! NILP (family)) | |
1559 | { | |
1560 | if (SYMBOLP (family)) | |
c21721cc | 1561 | family = SYMBOL_NAME (family); |
b1868a1a CY |
1562 | else |
1563 | family = Qnil; | |
1564 | } | |
ec6fe57c KH |
1565 | |
1566 | val = AREF (font, FONT_SIZE_INDEX); | |
1567 | if (INTEGERP (val)) | |
ef18374f | 1568 | { |
ec6fe57c KH |
1569 | if (XINT (val) != 0) |
1570 | pixel_size = XINT (val); | |
1571 | point_size = -1; | |
ef18374f | 1572 | } |
3ddb0639 | 1573 | else |
ef18374f | 1574 | { |
3ddb0639 PE |
1575 | if (! FLOATP (val)) |
1576 | abort (); | |
ec6fe57c KH |
1577 | pixel_size = -1; |
1578 | point_size = (int) XFLOAT_DATA (val); | |
ef18374f | 1579 | } |
ec6fe57c | 1580 | |
b1868a1a CY |
1581 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1582 | if (! NILP (foundry)) | |
1583 | { | |
1584 | if (SYMBOLP (foundry)) | |
c21721cc | 1585 | foundry = SYMBOL_NAME (foundry); |
b1868a1a CY |
1586 | else |
1587 | foundry = Qnil; | |
1588 | } | |
ec6fe57c | 1589 | |
35027d0c | 1590 | for (i = 0; i < 3; i++) |
c21721cc | 1591 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
35027d0c | 1592 | |
ef18374f | 1593 | p = name; |
c21721cc PE |
1594 | lim = name + nbytes; |
1595 | # define APPEND_SNPRINTF(args) \ | |
1596 | do { \ | |
1597 | int len = snprintf args; \ | |
1598 | if (! (0 <= len && len < lim - p)) \ | |
1599 | return -1; \ | |
1600 | p += len; \ | |
1601 | } while (0) | |
b1868a1a | 1602 | if (! NILP (family)) |
c21721cc | 1603 | APPEND_SNPRINTF ((p, lim - p, "%s", SSDATA (family))); |
ec6fe57c | 1604 | if (point_size > 0) |
c21721cc | 1605 | APPEND_SNPRINTF ((p, lim - p, "-%d" + (p == name), point_size)); |
ef18374f | 1606 | else if (pixel_size > 0) |
c21721cc | 1607 | APPEND_SNPRINTF ((p, lim - p, ":pixelsize=%d", pixel_size)); |
35027d0c | 1608 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
c21721cc PE |
1609 | APPEND_SNPRINTF ((p, lim - p, ":foundry=%s", |
1610 | SSDATA (SYMBOL_NAME (AREF (font, | |
1611 | FONT_FOUNDRY_INDEX))))); | |
a9262bb8 | 1612 | for (i = 0; i < 3; i++) |
35027d0c | 1613 | if (! NILP (styles[i])) |
c21721cc PE |
1614 | APPEND_SNPRINTF ((p, lim - p, ":%s=%s", style_names[i], |
1615 | SSDATA (SYMBOL_NAME (styles[i])))); | |
35027d0c | 1616 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c21721cc PE |
1617 | APPEND_SNPRINTF ((p, lim - p, ":dpi=%"pI"d", |
1618 | XINT (AREF (font, FONT_DPI_INDEX)))); | |
35027d0c | 1619 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
c21721cc PE |
1620 | APPEND_SNPRINTF ((p, lim - p, ":spacing=%"pI"d", |
1621 | XINT (AREF (font, FONT_SPACING_INDEX)))); | |
35027d0c | 1622 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
c21721cc PE |
1623 | APPEND_SNPRINTF ((p, lim - p, |
1624 | (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0 | |
1625 | ? ":scalable=true" | |
1626 | : ":scalable=false"))); | |
ef18374f KH |
1627 | return (p - name); |
1628 | } | |
1629 | ||
1630 | /* Parse NAME (null terminated) and store information in FONT | |
1631 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1632 | 0. Otherwise return -1. */ |
ef18374f KH |
1633 | |
1634 | static int | |
09d93395 | 1635 | font_parse_name (char *name, Lisp_Object font) |
ef18374f | 1636 | { |
8966b757 | 1637 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
e950d6f1 | 1638 | return font_parse_xlfd (name, font); |
ec6fe57c | 1639 | return font_parse_fcname (name, font); |
ef18374f KH |
1640 | } |
1641 | ||
35027d0c KH |
1642 | |
1643 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1644 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1645 | part. */ | |
45eb10fb | 1646 | |
c2f5bfd6 | 1647 | void |
971de7fb | 1648 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1649 | { |
35027d0c KH |
1650 | int len; |
1651 | char *p0, *p1; | |
1652 | ||
d0ab1ebe KH |
1653 | if (! NILP (family) |
1654 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1655 | { |
35027d0c KH |
1656 | CHECK_STRING (family); |
1657 | len = SBYTES (family); | |
51b59d79 | 1658 | p0 = SSDATA (family); |
8966b757 | 1659 | p1 = strchr (p0, '-'); |
35027d0c | 1660 | if (p1) |
c2f5bfd6 | 1661 | { |
9903d1e6 | 1662 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1663 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1664 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1665 | p1++; |
1666 | len -= p1 - p0; | |
2f286d4f | 1667 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1668 | } |
35027d0c KH |
1669 | else |
1670 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1671 | } |
35027d0c | 1672 | if (! NILP (registry)) |
c2f5bfd6 | 1673 | { |
35027d0c KH |
1674 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1675 | CHECK_STRING (registry); | |
1676 | len = SBYTES (registry); | |
51b59d79 | 1677 | p0 = SSDATA (registry); |
8966b757 | 1678 | p1 = strchr (p0, '-'); |
35027d0c | 1679 | if (! p1) |
c2f5bfd6 | 1680 | { |
35027d0c KH |
1681 | if (SDATA (registry)[len - 1] == '*') |
1682 | registry = concat2 (registry, build_string ("-*")); | |
1683 | else | |
1684 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1685 | } |
35027d0c KH |
1686 | registry = Fdowncase (registry); |
1687 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1688 | } |
1689 | } | |
1690 | ||
45eb10fb | 1691 | \f |
35027d0c KH |
1692 | /* This part (through the next ^L) is still experimental and not |
1693 | tested much. We may drastically change codes. */ | |
10d16101 | 1694 | |
45eb10fb | 1695 | /* OTF handler */ |
10d16101 | 1696 | |
6a3dadd2 KH |
1697 | #if 0 |
1698 | ||
e950d6f1 KH |
1699 | #define LGSTRING_HEADER_SIZE 6 |
1700 | #define LGSTRING_GLYPH_SIZE 8 | |
1701 | ||
1702 | static int | |
1dae0f0a | 1703 | check_gstring (Lisp_Object gstring) |
e950d6f1 KH |
1704 | { |
1705 | Lisp_Object val; | |
1706 | int i, j; | |
1707 | ||
1708 | CHECK_VECTOR (gstring); | |
1709 | val = AREF (gstring, 0); | |
1710 | CHECK_VECTOR (val); | |
1711 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1712 | goto err; | |
1713 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1714 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1715 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1716 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1717 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1718 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1719 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1720 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1721 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1722 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1723 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1724 | |
071132a9 | 1725 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1726 | { |
1727 | val = LGSTRING_GLYPH (gstring, i); | |
1728 | CHECK_VECTOR (val); | |
1729 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1730 | goto err; | |
f9ffa1ea | 1731 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1732 | break; |
f9ffa1ea SM |
1733 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1734 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1735 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1736 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1737 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1738 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1739 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1740 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1741 | { |
f9ffa1ea | 1742 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1743 | CHECK_VECTOR (val); |
1744 | if (ASIZE (val) < 3) | |
1745 | goto err; | |
1746 | for (j = 0; j < 3; j++) | |
1747 | CHECK_NUMBER (AREF (val, j)); | |
1748 | } | |
1749 | } | |
1750 | return i; | |
1751 | err: | |
1752 | error ("Invalid glyph-string format"); | |
1753 | return -1; | |
1754 | } | |
1755 | ||
cf385d93 | 1756 | static void |
1dae0f0a | 1757 | check_otf_features (Lisp_Object otf_features) |
cf385d93 | 1758 | { |
35027d0c | 1759 | Lisp_Object val; |
cf385d93 KH |
1760 | |
1761 | CHECK_CONS (otf_features); | |
1762 | CHECK_SYMBOL (XCAR (otf_features)); | |
1763 | otf_features = XCDR (otf_features); | |
1764 | CHECK_CONS (otf_features); | |
1765 | CHECK_SYMBOL (XCAR (otf_features)); | |
1766 | otf_features = XCDR (otf_features); | |
1767 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1768 | { | |
1769 | CHECK_SYMBOL (Fcar (val)); | |
1770 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
e6c3da20 EZ |
1771 | error ("Invalid OTF GSUB feature: %s", |
1772 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1773 | } |
1774 | otf_features = XCDR (otf_features); | |
1775 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1776 | { | |
1777 | CHECK_SYMBOL (Fcar (val)); | |
1778 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
e6c3da20 EZ |
1779 | error ("Invalid OTF GPOS feature: %s", |
1780 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1781 | } |
1782 | } | |
1783 | ||
c2f5bfd6 KH |
1784 | #ifdef HAVE_LIBOTF |
1785 | #include <otf.h> | |
1786 | ||
733fd013 | 1787 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1788 | |
1789 | static Lisp_Object | |
1dae0f0a | 1790 | otf_tag_symbol (OTF_Tag tag) |
c2f5bfd6 KH |
1791 | { |
1792 | char name[5]; | |
1793 | ||
1794 | OTF_tag_name (tag, name); | |
1795 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1796 | } | |
1797 | ||
1798 | static OTF * | |
1dae0f0a | 1799 | otf_open (Lisp_Object file) |
c2f5bfd6 | 1800 | { |
35027d0c | 1801 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1802 | OTF *otf; |
1803 | ||
1804 | if (! NILP (val)) | |
1805 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1806 | else | |
c2f5bfd6 | 1807 | { |
51b59d79 | 1808 | otf = STRINGP (file) ? OTF_open (SSDATA (file)) : NULL; |
733fd013 | 1809 | val = make_save_value (otf, 0); |
35027d0c | 1810 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1811 | } |
733fd013 | 1812 | return otf; |
c2f5bfd6 KH |
1813 | } |
1814 | ||
1815 | ||
1816 | /* Return a list describing which scripts/languages FONT supports by | |
1817 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1818 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1819 | |
1820 | Lisp_Object | |
1dae0f0a | 1821 | font_otf_capability (struct font *font) |
c2f5bfd6 KH |
1822 | { |
1823 | OTF *otf; | |
1824 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1825 | int i; | |
1826 | ||
35027d0c | 1827 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1828 | if (! otf) |
1829 | return Qnil; | |
1830 | for (i = 0; i < 2; i++) | |
1831 | { | |
1832 | OTF_GSUB_GPOS *gsub_gpos; | |
1833 | Lisp_Object script_list = Qnil; | |
1834 | int j; | |
1835 | ||
1836 | if (OTF_get_features (otf, i == 0) < 0) | |
1837 | continue; | |
1838 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1839 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1840 | { | |
1841 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1842 | Lisp_Object langsys_list = Qnil; | |
1843 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1844 | int k; | |
1845 | ||
1846 | for (k = script->LangSysCount; k >= 0; k--) | |
1847 | { | |
1848 | OTF_LangSys *langsys; | |
1849 | Lisp_Object feature_list = Qnil; | |
1850 | Lisp_Object langsys_tag; | |
1851 | int l; | |
1852 | ||
e80e09b4 | 1853 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1854 | { |
1855 | langsys = &script->DefaultLangSys; | |
1856 | langsys_tag = Qnil; | |
1857 | } | |
1858 | else | |
1859 | { | |
1860 | langsys = script->LangSys + k; | |
1861 | langsys_tag | |
1862 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1863 | } | |
e80e09b4 | 1864 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1865 | { |
1866 | OTF_Feature *feature | |
1867 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1868 | Lisp_Object feature_tag | |
1869 | = otf_tag_symbol (feature->FeatureTag); | |
1870 | ||
1871 | feature_list = Fcons (feature_tag, feature_list); | |
1872 | } | |
1873 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1874 | langsys_list); | |
1875 | } | |
1876 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1877 | script_list); | |
1878 | } | |
1879 | ||
1880 | if (i == 0) | |
1881 | XSETCAR (capability, script_list); | |
1882 | else | |
1883 | XSETCDR (capability, script_list); | |
1884 | } | |
1885 | ||
1886 | return capability; | |
1887 | } | |
1888 | ||
733fd013 KH |
1889 | /* Parse OTF features in SPEC and write a proper features spec string |
1890 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1891 | assured that the sufficient memory has already allocated for | |
1892 | FEATURES. */ | |
1893 | ||
e80e09b4 | 1894 | static void |
1dae0f0a | 1895 | generate_otf_features (Lisp_Object spec, char *features) |
c2f5bfd6 KH |
1896 | { |
1897 | Lisp_Object val; | |
35027d0c | 1898 | char *p; |
c2f5bfd6 KH |
1899 | int asterisk; |
1900 | ||
733fd013 | 1901 | p = features; |
e80e09b4 | 1902 | *p = '\0'; |
c2f5bfd6 KH |
1903 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1904 | { | |
1905 | val = XCAR (spec); | |
e80e09b4 KH |
1906 | CHECK_SYMBOL (val); |
1907 | if (p > features) | |
733fd013 | 1908 | *p++ = ','; |
c2f5bfd6 KH |
1909 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1910 | { | |
1911 | asterisk = 1; | |
e80e09b4 | 1912 | *p++ = '*'; |
c2f5bfd6 KH |
1913 | } |
1914 | else if (! asterisk) | |
e80e09b4 KH |
1915 | { |
1916 | val = SYMBOL_NAME (val); | |
c21721cc | 1917 | p += esprintf (p, "%s", SDATA (val)); |
e80e09b4 | 1918 | } |
c2f5bfd6 | 1919 | else |
e80e09b4 KH |
1920 | { |
1921 | val = SYMBOL_NAME (val); | |
c21721cc | 1922 | p += esprintf (p, "~%s", SDATA (val)); |
e80e09b4 | 1923 | } |
c2f5bfd6 | 1924 | } |
e80e09b4 KH |
1925 | if (CONSP (spec)) |
1926 | error ("OTF spec too long"); | |
1927 | } | |
1928 | ||
733fd013 | 1929 | Lisp_Object |
1dae0f0a | 1930 | font_otf_DeviceTable (OTF_DeviceTable *device_table) |
733fd013 KH |
1931 | { |
1932 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1933 | ||
1934 | return Fcons (make_number (len), | |
1935 | make_unibyte_string (device_table->DeltaValue, len)); | |
1936 | } | |
1937 | ||
1938 | Lisp_Object | |
1dae0f0a | 1939 | font_otf_ValueRecord (int value_format, OTF_ValueRecord *value_record) |
733fd013 KH |
1940 | { |
1941 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1942 | ||
1943 | if (value_format & OTF_XPlacement) | |
43c0454d | 1944 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 1945 | if (value_format & OTF_YPlacement) |
43c0454d | 1946 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 1947 | if (value_format & OTF_XAdvance) |
43c0454d | 1948 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 1949 | if (value_format & OTF_YAdvance) |
43c0454d | 1950 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
1951 | if (value_format & OTF_XPlaDevice) |
1952 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
1953 | if (value_format & OTF_YPlaDevice) | |
1954 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
1955 | if (value_format & OTF_XAdvDevice) | |
1956 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
1957 | if (value_format & OTF_YAdvDevice) | |
1958 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
1959 | return val; | |
1960 | } | |
1961 | ||
1962 | Lisp_Object | |
1dae0f0a | 1963 | font_otf_Anchor (OTF_Anchor *anchor) |
733fd013 KH |
1964 | { |
1965 | Lisp_Object val; | |
1966 | ||
1967 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
1968 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
1969 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
1970 | if (anchor->AnchorFormat == 2) | |
1971 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
1972 | else | |
1973 | { | |
1974 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
1975 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
1976 | } | |
1977 | return val; | |
1978 | } | |
c2f5bfd6 | 1979 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 1980 | #endif /* 0 */ |
c2f5bfd6 | 1981 | |
c2f5bfd6 KH |
1982 | \f |
1983 | /* Font sorting */ | |
1984 | ||
f57e2426 J |
1985 | static unsigned font_score (Lisp_Object, Lisp_Object *); |
1986 | static int font_compare (const void *, const void *); | |
1987 | static Lisp_Object font_sort_entities (Lisp_Object, Lisp_Object, | |
1988 | Lisp_Object, int); | |
c2f5bfd6 | 1989 | |
55e41770 | 1990 | static double |
971de7fb | 1991 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
1992 | { |
1993 | Lisp_Object tail, elt; | |
1994 | Lisp_Object name = Qnil; | |
1995 | ||
1996 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
1997 | { | |
1998 | elt = XCAR (tail); | |
1999 | if (FLOATP (XCDR (elt))) | |
2000 | { | |
2001 | if (STRINGP (XCAR (elt))) | |
2002 | { | |
2003 | if (NILP (name)) | |
2004 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2005 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2006 | return XFLOAT_DATA (XCDR (elt)); | |
2007 | } | |
2008 | else if (FONT_SPEC_P (XCAR (elt))) | |
2009 | { | |
2010 | if (font_match_p (XCAR (elt), font_entity)) | |
2011 | return XFLOAT_DATA (XCDR (elt)); | |
2012 | } | |
2013 | } | |
2014 | } | |
2015 | return 1.0; | |
2016 | } | |
2017 | ||
c2f5bfd6 KH |
2018 | /* We sort fonts by scoring each of them against a specified |
2019 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2020 | the value is, the closer the font is to the font-spec. | |
2021 | ||
56dd2d86 | 2022 | The lowest 2 bits of the score are used for driver type. The font |
4007dd1c | 2023 | available by the most preferred font driver is 0. |
35027d0c | 2024 | |
56dd2d86 | 2025 | The 4 7-bit fields in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2026 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2027 | ||
2028 | /* How many bits to shift to store the difference value of each font | |
56dd2d86 | 2029 | property in a score. Note that floats for FONT_TYPE_INDEX and |
35027d0c | 2030 | FONT_REGISTRY_INDEX are not used. */ |
c2f5bfd6 KH |
2031 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2032 | ||
9331887d KH |
2033 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2034 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2035 | SPEC_PROP. */ |
c2f5bfd6 KH |
2036 | |
2037 | static unsigned | |
971de7fb | 2038 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2039 | { |
2040 | unsigned score = 0; | |
2041 | int i; | |
c2f5bfd6 | 2042 | |
35027d0c KH |
2043 | /* Score three style numeric fields. Maximum difference is 127. */ |
2044 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2045 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2046 | { | |
790771b1 PE |
2047 | EMACS_INT diff = ((XINT (AREF (entity, i)) >> 8) |
2048 | - (XINT (spec_prop[i]) >> 8)); | |
35027d0c KH |
2049 | if (diff < 0) |
2050 | diff = - diff; | |
790771b1 | 2051 | score |= min (diff, 127) << sort_shift_bits[i]; |
35027d0c KH |
2052 | } |
2053 | ||
2054 | /* Score the size. Maximum difference is 127. */ | |
2055 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2056 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2057 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2058 | { |
2059 | /* We use the higher 6-bit for the actual size difference. The | |
2060 | lowest bit is set if the DPI is different. */ | |
b79e8648 PE |
2061 | EMACS_INT diff; |
2062 | EMACS_INT pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2063 | |
55e41770 KH |
2064 | if (CONSP (Vface_font_rescale_alist)) |
2065 | pixel_size *= font_rescale_ratio (entity); | |
2066 | diff = pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX)); | |
35027d0c KH |
2067 | if (diff < 0) |
2068 | diff = - diff; | |
d0ab1ebe | 2069 | diff <<= 1; |
35027d0c KH |
2070 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2071 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2072 | diff |= 1; | |
c0a6070d KH |
2073 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2074 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2075 | diff |= 1; | |
35027d0c | 2076 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2077 | } |
2078 | ||
2079 | return score; | |
2080 | } | |
2081 | ||
2082 | ||
72d36834 KH |
2083 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2084 | of font-entity vectors. */ | |
c2f5bfd6 | 2085 | |
72d36834 KH |
2086 | static Lisp_Object |
2087 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2088 | { |
72d36834 KH |
2089 | int nargs = XINT (Flength (list)); |
2090 | Lisp_Object *args = alloca (sizeof (Lisp_Object) * nargs); | |
2091 | int i; | |
2092 | ||
2093 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2094 | args[i] = XCAR (list); | |
2095 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2096 | } |
2097 | ||
2098 | ||
2099 | /* The structure for elements being sorted by qsort. */ | |
2100 | struct font_sort_data | |
2101 | { | |
2102 | unsigned score; | |
72d36834 | 2103 | int font_driver_preference; |
c2f5bfd6 KH |
2104 | Lisp_Object entity; |
2105 | }; | |
2106 | ||
2107 | ||
72d36834 KH |
2108 | /* The comparison function for qsort. */ |
2109 | ||
2110 | static int | |
971de7fb | 2111 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2112 | { |
2113 | const struct font_sort_data *data1 = d1; | |
2114 | const struct font_sort_data *data2 = d2; | |
2115 | ||
2116 | if (data1->score < data2->score) | |
2117 | return -1; | |
2118 | else if (data1->score > data2->score) | |
2119 | return 1; | |
2120 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2121 | } | |
2122 | ||
2123 | ||
2124 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2125 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2126 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2127 | of FRAME before sorting. |
35027d0c | 2128 | |
c9477f01 KH |
2129 | If BEST-ONLY is nonzero, return the best matching entity (that |
2130 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2131 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2132 | a single vector of font-entities. | |
c9477f01 | 2133 | |
72d36834 KH |
2134 | This function does no optimization for the case that the total |
2135 | number of elements is 1. The caller should avoid calling this in | |
2136 | such a case. */ | |
c2f5bfd6 KH |
2137 | |
2138 | static Lisp_Object | |
971de7fb | 2139 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, Lisp_Object frame, int best_only) |
c2f5bfd6 | 2140 | { |
9331887d | 2141 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2142 | int len, maxlen, i; |
c2f5bfd6 | 2143 | struct font_sort_data *data; |
35027d0c | 2144 | unsigned best_score; |
72d36834 | 2145 | Lisp_Object best_entity; |
4007dd1c | 2146 | struct frame *f = XFRAME (frame); |
5ad03b97 | 2147 | Lisp_Object tail, vec IF_LINT (= Qnil); |
c2f5bfd6 KH |
2148 | USE_SAFE_ALLOCA; |
2149 | ||
9903d1e6 | 2150 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2151 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2152 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2153 | prefer_prop[FONT_SIZE_INDEX] | |
2154 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2155 | ||
72d36834 KH |
2156 | if (NILP (XCDR (list))) |
2157 | { | |
2158 | /* What we have to take care of is this single vector. */ | |
2159 | vec = XCAR (list); | |
2160 | maxlen = ASIZE (vec); | |
2161 | } | |
2162 | else if (best_only) | |
2163 | { | |
2164 | /* We don't have to perform sort, so there's no need of creating | |
2165 | a single vector. But, we must find the length of the longest | |
2166 | vector. */ | |
2167 | maxlen = 0; | |
2168 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2169 | if (maxlen < ASIZE (XCAR (tail))) | |
2170 | maxlen = ASIZE (XCAR (tail)); | |
2171 | } | |
2172 | else | |
2173 | { | |
2174 | /* We have to create a single vector to sort it. */ | |
2175 | vec = font_vconcat_entity_vectors (list); | |
2176 | maxlen = ASIZE (vec); | |
2177 | } | |
2178 | ||
2179 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * maxlen); | |
c9477f01 KH |
2180 | best_score = 0xFFFFFFFF; |
2181 | best_entity = Qnil; | |
72d36834 KH |
2182 | |
2183 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2184 | { |
72d36834 KH |
2185 | int font_driver_preference = 0; |
2186 | Lisp_Object current_font_driver; | |
ce75f06e | 2187 | |
72d36834 KH |
2188 | if (best_only) |
2189 | vec = XCAR (tail); | |
2190 | len = ASIZE (vec); | |
2191 | ||
2192 | /* We are sure that the length of VEC > 0. */ | |
2193 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2194 | /* Score the elements. */ | |
2195 | for (i = 0; i < len; i++) | |
35027d0c | 2196 | { |
72d36834 KH |
2197 | data[i].entity = AREF (vec, i); |
2198 | data[i].score | |
2199 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2200 | > 0) | |
2201 | ? font_score (data[i].entity, prefer_prop) | |
2202 | : 0xFFFFFFFF); | |
2203 | if (best_only && best_score > data[i].score) | |
2204 | { | |
2205 | best_score = data[i].score; | |
2206 | best_entity = data[i].entity; | |
2207 | if (best_score == 0) | |
2208 | break; | |
2209 | } | |
2210 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2211 | { | |
2212 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2213 | font_driver_preference++; | |
2214 | } | |
2215 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2216 | } |
72d36834 KH |
2217 | |
2218 | /* Sort if necessary. */ | |
2219 | if (! best_only) | |
2220 | { | |
2221 | qsort (data, len, sizeof *data, font_compare); | |
2222 | for (i = 0; i < len; i++) | |
2223 | ASET (vec, i, data[i].entity); | |
2224 | break; | |
2225 | } | |
2226 | else | |
2227 | vec = best_entity; | |
c2f5bfd6 | 2228 | } |
72d36834 | 2229 | |
c2f5bfd6 KH |
2230 | SAFE_FREE (); |
2231 | ||
652b9560 | 2232 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2233 | return vec; |
2234 | } | |
2235 | ||
2236 | \f | |
2237 | /* API of Font Service Layer. */ | |
2238 | ||
45eb10fb KH |
2239 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2240 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2241 | function with font_sort_order after setting up it. */ | |
2242 | ||
c2f5bfd6 | 2243 | void |
971de7fb | 2244 | font_update_sort_order (int *order) |
c2f5bfd6 | 2245 | { |
35027d0c | 2246 | int i, shift_bits; |
c2f5bfd6 | 2247 | |
943b7eea | 2248 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2249 | { |
2250 | int xlfd_idx = order[i]; | |
2251 | ||
2252 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2253 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2254 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2255 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2256 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2257 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2258 | else | |
2259 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2260 | } | |
2261 | } | |
2262 | ||
51c13510 | 2263 | static int |
971de7fb | 2264 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, Lisp_Object features, Lisp_Object table) |
51c13510 KH |
2265 | { |
2266 | Lisp_Object val; | |
2267 | int negative; | |
2268 | ||
2269 | table = assq_no_quit (script, table); | |
2270 | if (NILP (table)) | |
2271 | return 0; | |
2272 | table = XCDR (table); | |
2273 | if (! NILP (langsys)) | |
2274 | { | |
2275 | table = assq_no_quit (langsys, table); | |
2276 | if (NILP (table)) | |
2277 | return 0; | |
2278 | } | |
2279 | else | |
2280 | { | |
2281 | val = assq_no_quit (Qnil, table); | |
2282 | if (NILP (val)) | |
2283 | table = XCAR (table); | |
2284 | else | |
2285 | table = val; | |
2286 | } | |
2287 | table = XCDR (table); | |
2288 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2289 | { | |
2290 | if (NILP (XCAR (features))) | |
c423ecca KH |
2291 | { |
2292 | negative = 1; | |
2293 | continue; | |
2294 | } | |
51c13510 KH |
2295 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2296 | return 0; | |
2297 | } | |
2298 | return 1; | |
2299 | } | |
2300 | ||
2301 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2302 | ||
2303 | static int | |
3cba9369 | 2304 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2305 | { |
2306 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2307 | ||
2308 | script = XCAR (spec); | |
2309 | spec = XCDR (spec); | |
2310 | if (! NILP (spec)) | |
2311 | { | |
2312 | langsys = XCAR (spec); | |
2313 | spec = XCDR (spec); | |
2314 | if (! NILP (spec)) | |
2315 | { | |
2316 | gsub = XCAR (spec); | |
2317 | spec = XCDR (spec); | |
2318 | if (! NILP (spec)) | |
2319 | gpos = XCAR (spec); | |
2320 | } | |
2321 | } | |
2322 | ||
2323 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2324 | XCAR (otf_capability))) | |
2325 | return 0; | |
2326 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2327 | XCDR (otf_capability))) | |
2328 | return 0; | |
2329 | return 1; | |
2330 | } | |
2331 | ||
45eb10fb | 2332 | |
51c13510 KH |
2333 | |
2334 | /* Check if FONT (font-entity or font-object) matches with the font | |
2335 | specification SPEC. */ | |
45eb10fb | 2336 | |
ef18374f | 2337 | int |
971de7fb | 2338 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2339 | { |
51c13510 KH |
2340 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2341 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2342 | int i; |
2343 | ||
51c13510 KH |
2344 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2345 | if (! NILP (AREF (spec, i)) | |
2346 | && ! NILP (AREF (font, i)) | |
2347 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2348 | return 0; | |
2349 | props = XFONT_SPEC (spec)->props; | |
2350 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2351 | { | |
2352 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2353 | prop[i] = AREF (spec, i); | |
2354 | prop[FONT_SIZE_INDEX] | |
2355 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2356 | props = prop; | |
2357 | } | |
2358 | ||
2359 | if (font_score (font, props) > 0) | |
2360 | return 0; | |
2361 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2362 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2363 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2364 | { |
51c13510 KH |
2365 | Lisp_Object key = XCAR (XCAR (extra)); |
2366 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2367 | ||
2368 | if (EQ (key, QClang)) | |
2369 | { | |
2370 | val2 = assq_no_quit (key, font_extra); | |
2371 | if (NILP (val2)) | |
2372 | return 0; | |
2373 | val2 = XCDR (val2); | |
2374 | if (CONSP (val)) | |
2375 | { | |
2376 | if (! CONSP (val2)) | |
2377 | return 0; | |
2378 | while (CONSP (val)) | |
2379 | if (NILP (Fmemq (val, val2))) | |
2380 | return 0; | |
2381 | } | |
2382 | else | |
2383 | if (CONSP (val2) | |
2384 | ? NILP (Fmemq (val, XCDR (val2))) | |
2385 | : ! EQ (val, val2)) | |
2386 | return 0; | |
2387 | } | |
2388 | else if (EQ (key, QCscript)) | |
2389 | { | |
2390 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2391 | if (CONSP (val2)) |
2392 | { | |
2393 | val2 = XCDR (val2); | |
2394 | if (CONSP (val2)) | |
2395 | { | |
2396 | /* All characters in the list must be supported. */ | |
2397 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2398 | { | |
2399 | if (! NATNUMP (XCAR (val2))) | |
2400 | continue; | |
2401 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2402 | == FONT_INVALID_CODE) | |
2403 | return 0; | |
2404 | } | |
2405 | } | |
2406 | else if (VECTORP (val2)) | |
2407 | { | |
2408 | /* At most one character in the vector must be supported. */ | |
2409 | for (i = 0; i < ASIZE (val2); i++) | |
2410 | { | |
2411 | if (! NATNUMP (AREF (val2, i))) | |
2412 | continue; | |
2413 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2414 | != FONT_INVALID_CODE) | |
f5485732 | 2415 | break; |
5bdd4dd2 KH |
2416 | } |
2417 | if (i == ASIZE (val2)) | |
2418 | return 0; | |
2419 | } | |
2420 | } | |
51c13510 KH |
2421 | } |
2422 | else if (EQ (key, QCotf)) | |
2423 | { | |
2424 | struct font *fontp; | |
2425 | ||
2426 | if (! FONT_OBJECT_P (font)) | |
2427 | return 0; | |
2428 | fontp = XFONT_OBJECT (font); | |
2429 | if (! fontp->driver->otf_capability) | |
2430 | return 0; | |
2431 | val2 = fontp->driver->otf_capability (fontp); | |
2432 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2433 | return 0; | |
2434 | } | |
35027d0c KH |
2435 | } |
2436 | ||
51c13510 | 2437 | return 1; |
ef18374f | 2438 | } |
ca4da08a | 2439 | \f |
819e81df | 2440 | |
ca4da08a KH |
2441 | /* Font cache |
2442 | ||
2443 | Each font backend has the callback function get_cache, and it | |
2444 | returns a cons cell of which cdr part can be freely used for | |
2445 | caching fonts. The cons cell may be shared by multiple frames | |
2446 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2447 | ||
2448 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2449 | ||
2450 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2451 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2452 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2453 | ||
f57e2426 J |
2454 | static void font_prepare_cache (FRAME_PTR, struct font_driver *); |
2455 | static void font_finish_cache (FRAME_PTR, struct font_driver *); | |
2456 | static Lisp_Object font_get_cache (FRAME_PTR, struct font_driver *); | |
2457 | static void font_clear_cache (FRAME_PTR, Lisp_Object, | |
2458 | struct font_driver *); | |
ca4da08a KH |
2459 | |
2460 | static void | |
971de7fb | 2461 | font_prepare_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2462 | { |
2463 | Lisp_Object cache, val; | |
2464 | ||
2465 | cache = driver->get_cache (f); | |
2466 | val = XCDR (cache); | |
2467 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2468 | val = XCDR (val); | |
2469 | if (NILP (val)) | |
2470 | { | |
2471 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2472 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2473 | } | |
2474 | else | |
2475 | { | |
2476 | val = XCDR (XCAR (val)); | |
2477 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2478 | } | |
2479 | } | |
2480 | ||
43c0454d | 2481 | |
ca4da08a | 2482 | static void |
971de7fb | 2483 | font_finish_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2484 | { |
2485 | Lisp_Object cache, val, tmp; | |
2486 | ||
2487 | ||
2488 | cache = driver->get_cache (f); | |
2489 | val = XCDR (cache); | |
2490 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2491 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2492 | font_assert (! NILP (val)); |
ca4da08a | 2493 | tmp = XCDR (XCAR (val)); |
43c0454d | 2494 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2495 | if (XINT (XCAR (tmp)) == 0) |
2496 | { | |
2497 | font_clear_cache (f, XCAR (val), driver); | |
2498 | XSETCDR (cache, XCDR (val)); | |
2499 | } | |
ca4da08a KH |
2500 | } |
2501 | ||
43c0454d | 2502 | |
ca4da08a | 2503 | static Lisp_Object |
971de7fb | 2504 | font_get_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2505 | { |
2506 | Lisp_Object val = driver->get_cache (f); | |
2507 | Lisp_Object type = driver->type; | |
2508 | ||
d0ab1ebe | 2509 | font_assert (CONSP (val)); |
ca4da08a | 2510 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2511 | font_assert (CONSP (val)); |
ca4da08a KH |
2512 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2513 | val = XCDR (XCAR (val)); | |
2514 | return val; | |
2515 | } | |
2516 | ||
43c0454d KH |
2517 | static int num_fonts; |
2518 | ||
ca4da08a | 2519 | static void |
971de7fb | 2520 | font_clear_cache (FRAME_PTR f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2521 | { |
2522 | Lisp_Object tail, elt; | |
6136b72f | 2523 | Lisp_Object tail2, entity; |
51c01100 | 2524 | |
ca4da08a KH |
2525 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2526 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2527 | { | |
2528 | elt = XCAR (tail); | |
6136b72f CY |
2529 | /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */ |
2530 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
ca4da08a | 2531 | { |
6136b72f | 2532 | for (tail2 = XCDR (elt); CONSP (tail2); tail2 = XCDR (tail2)) |
ca4da08a | 2533 | { |
6136b72f | 2534 | entity = XCAR (tail2); |
ca4da08a | 2535 | |
6136b72f CY |
2536 | if (FONT_ENTITY_P (entity) |
2537 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2538 | { |
2539 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2540 | ||
2541 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2542 | { | |
2543 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2544 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2545 | |
5e634ec9 KH |
2546 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2547 | { | |
2548 | font_assert (font && driver == font->driver); | |
2549 | driver->close (f, font); | |
2550 | num_fonts--; | |
2551 | } | |
ca4da08a KH |
2552 | } |
2553 | if (driver->free_entity) | |
2554 | driver->free_entity (entity); | |
2555 | } | |
2556 | } | |
2557 | } | |
2558 | } | |
2559 | XSETCDR (cache, Qnil); | |
2560 | } | |
2561 | \f | |
2562 | ||
c2f5bfd6 KH |
2563 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2564 | ||
7d56b2dd | 2565 | /* Check each font-entity in VEC, and return a list of font-entities |
56dd2d86 | 2566 | that satisfy these conditions: |
7d56b2dd KH |
2567 | (1) matches with SPEC and SIZE if SPEC is not nil, and |
2568 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2569 | */ | |
2570 | ||
7b81e2d0 | 2571 | static Lisp_Object |
971de7fb | 2572 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2573 | { |
d0ab1ebe | 2574 | Lisp_Object entity, val; |
35027d0c | 2575 | enum font_property_index prop; |
72d36834 | 2576 | int i; |
45eb10fb | 2577 | |
72d36834 | 2578 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2579 | { |
72d36834 | 2580 | entity = AREF (vec, i); |
7d56b2dd KH |
2581 | if (! NILP (Vface_ignored_fonts)) |
2582 | { | |
2583 | char name[256]; | |
2584 | Lisp_Object tail, regexp; | |
2585 | ||
2586 | if (font_unparse_xlfd (entity, 0, name, 256) >= 0) | |
2587 | { | |
2588 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2589 | { | |
2590 | regexp = XCAR (tail); | |
2591 | if (STRINGP (regexp) | |
2592 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
2593 | break; | |
2594 | } | |
2595 | if (CONSP (tail)) | |
2596 | continue; | |
2597 | } | |
2598 | } | |
2599 | if (NILP (spec)) | |
2600 | { | |
2601 | val = Fcons (entity, val); | |
2602 | continue; | |
2603 | } | |
35027d0c KH |
2604 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2605 | if (INTEGERP (AREF (spec, prop)) | |
2606 | && ((XINT (AREF (spec, prop)) >> 8) | |
2607 | != (XINT (AREF (entity, prop)) >> 8))) | |
2608 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2609 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2610 | && size |
2611 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2612 | { | |
2613 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2614 | |
35027d0c KH |
2615 | if (diff != 0 |
2616 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2617 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2618 | prop = FONT_SPEC_MAX; | |
2619 | } | |
7181ea6a KH |
2620 | if (prop < FONT_SPEC_MAX |
2621 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2622 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2623 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2624 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2625 | prop = FONT_SPEC_MAX; | |
2626 | if (prop < FONT_SPEC_MAX | |
2627 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2628 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2629 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2630 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2631 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2632 | prop = FONT_SPEC_MAX; | |
35027d0c | 2633 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2634 | val = Fcons (entity, val); |
35027d0c | 2635 | } |
72d36834 | 2636 | return (Fvconcat (1, &val)); |
35027d0c KH |
2637 | } |
2638 | ||
2639 | ||
72d36834 | 2640 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2641 | FRAME. Each elements in the list is a vector of entities from the |
2642 | same font-driver. */ | |
35027d0c KH |
2643 | |
2644 | Lisp_Object | |
971de7fb | 2645 | font_list_entities (Lisp_Object frame, Lisp_Object spec) |
c2f5bfd6 KH |
2646 | { |
2647 | FRAME_PTR f = XFRAME (frame); | |
2648 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2649 | Lisp_Object ftype, val; |
72d36834 | 2650 | Lisp_Object list = Qnil; |
35027d0c KH |
2651 | int size; |
2652 | int need_filtering = 0; | |
c2f5bfd6 KH |
2653 | int i; |
2654 | ||
d0ab1ebe | 2655 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2656 | |
35027d0c KH |
2657 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2658 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2659 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2660 | size = font_pixel_size (f, spec); | |
2661 | else | |
2662 | size = 0; | |
2663 | ||
c2f5bfd6 | 2664 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2665 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2666 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2667 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
56201685 PE |
2668 | if (i != FONT_SPACING_INDEX) |
2669 | { | |
2670 | ASET (scratch_font_spec, i, Qnil); | |
2671 | if (! NILP (AREF (spec, i))) | |
2672 | need_filtering = 1; | |
2673 | } | |
aa50ca2f | 2674 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2675 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2676 | ||
c2f5bfd6 | 2677 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2678 | if (driver_list->on |
2679 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2680 | { |
ca4da08a | 2681 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2682 | |
e4c93315 | 2683 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2684 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2685 | if (CONSP (val)) | |
2686 | val = XCDR (val); | |
2687 | else | |
c2f5bfd6 | 2688 | { |
4007dd1c | 2689 | Lisp_Object copy; |
35027d0c | 2690 | |
4007dd1c | 2691 | val = driver_list->driver->list (frame, scratch_font_spec); |
72d36834 KH |
2692 | if (NILP (val)) |
2693 | val = null_vector; | |
2694 | else | |
2695 | val = Fvconcat (1, &val); | |
92470028 | 2696 | copy = copy_font_spec (scratch_font_spec); |
4007dd1c KH |
2697 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2698 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2699 | } |
7d56b2dd KH |
2700 | if (ASIZE (val) > 0 |
2701 | && (need_filtering | |
2702 | || ! NILP (Vface_ignored_fonts))) | |
2703 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2704 | if (ASIZE (val) > 0) |
2705 | list = Fcons (val, list); | |
c2f5bfd6 | 2706 | } |
35027d0c | 2707 | |
72d36834 KH |
2708 | list = Fnreverse (list); |
2709 | FONT_ADD_LOG ("list", spec, list); | |
2710 | return list; | |
c2f5bfd6 KH |
2711 | } |
2712 | ||
45eb10fb | 2713 | |
35027d0c KH |
2714 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2715 | nil, is an array of face's attributes, which specifies preferred | |
2716 | font-related attributes. */ | |
45eb10fb | 2717 | |
e950d6f1 | 2718 | static Lisp_Object |
971de7fb | 2719 | font_matching_entity (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2720 | { |
e950d6f1 KH |
2721 | struct font_driver_list *driver_list = f->font_driver_list; |
2722 | Lisp_Object ftype, size, entity; | |
35027d0c | 2723 | Lisp_Object frame; |
92470028 | 2724 | Lisp_Object work = copy_font_spec (spec); |
e950d6f1 | 2725 | |
35027d0c | 2726 | XSETFRAME (frame, f); |
e950d6f1 KH |
2727 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2728 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2729 | |
8d0e382e AR |
2730 | if (FLOATP (size)) |
2731 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2732 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2733 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2734 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2735 | ||
e950d6f1 KH |
2736 | entity = Qnil; |
2737 | for (; driver_list; driver_list = driver_list->next) | |
2738 | if (driver_list->on | |
2739 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2740 | { | |
ca4da08a | 2741 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2742 | Lisp_Object copy; |
e950d6f1 | 2743 | |
819ab95f KH |
2744 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2745 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2746 | if (CONSP (entity)) |
e950d6f1 KH |
2747 | entity = XCDR (entity); |
2748 | else | |
2749 | { | |
819ab95f | 2750 | entity = driver_list->driver->match (frame, work); |
92470028 | 2751 | copy = copy_font_spec (work); |
7cee5d63 KH |
2752 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2753 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2754 | } |
2755 | if (! NILP (entity)) | |
2756 | break; | |
2757 | } | |
652b9560 | 2758 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2759 | return entity; |
2760 | } | |
2761 | ||
45eb10fb KH |
2762 | |
2763 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2764 | opened font object. */ | |
2765 | ||
c2f5bfd6 | 2766 | static Lisp_Object |
971de7fb | 2767 | font_open_entity (FRAME_PTR f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2768 | { |
2769 | struct font_driver_list *driver_list; | |
43c0454d | 2770 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2771 | struct font *font; |
d26424c5 | 2772 | int min_width, height; |
dbc05432 | 2773 | int scaled_pixel_size = pixel_size; |
c2f5bfd6 | 2774 | |
d0ab1ebe | 2775 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2776 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2777 | if (XINT (size) != 0) |
a35dd56b | 2778 | scaled_pixel_size = pixel_size = XINT (size); |
55e41770 | 2779 | else if (CONSP (Vface_font_rescale_alist)) |
a35dd56b | 2780 | scaled_pixel_size = pixel_size * font_rescale_ratio (entity); |
c2f5bfd6 | 2781 | |
35027d0c KH |
2782 | val = AREF (entity, FONT_TYPE_INDEX); |
2783 | for (driver_list = f->font_driver_list; | |
2784 | driver_list && ! EQ (driver_list->driver->type, val); | |
2785 | driver_list = driver_list->next); | |
2786 | if (! driver_list) | |
2787 | return Qnil; | |
c2f5bfd6 | 2788 | |
d0cf45b7 JD |
2789 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2790 | objlist = XCDR (objlist)) | |
2791 | { | |
2792 | Lisp_Object fn = XCAR (objlist); | |
2793 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2794 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2795 | { | |
2796 | if (driver_list->driver->cached_font_ok == NULL | |
2797 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2798 | return fn; | |
2799 | } | |
2800 | } | |
2801 | ||
a35dd56b | 2802 | font_object = driver_list->driver->open (f, entity, scaled_pixel_size); |
66f5ced0 YM |
2803 | if (!NILP (font_object)) |
2804 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2805 | FONT_ADD_LOG ("open", entity, font_object); |
43c0454d | 2806 | if (NILP (font_object)) |
35027d0c KH |
2807 | return Qnil; |
2808 | ASET (entity, FONT_OBJLIST_INDEX, | |
2809 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2810 | num_fonts++; |
2811 | ||
2812 | font = XFONT_OBJECT (font_object); | |
2813 | min_width = (font->min_width ? font->min_width | |
2814 | : font->average_width ? font->average_width | |
2815 | : font->space_width ? font->space_width | |
2816 | : 1); | |
d26424c5 | 2817 | height = (font->height ? font->height : 1); |
819e81df | 2818 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2819 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2820 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2821 | { |
35027d0c | 2822 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2823 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
35027d0c KH |
2824 | fonts_changed_p = 1; |
2825 | } | |
2826 | else | |
2827 | { | |
2828 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2829 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
d26424c5 KH |
2830 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
2831 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, fonts_changed_p = 1; | |
43c0454d | 2832 | } |
819e81df | 2833 | #endif |
43c0454d KH |
2834 | |
2835 | return font_object; | |
c2f5bfd6 KH |
2836 | } |
2837 | ||
45eb10fb KH |
2838 | |
2839 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2840 | ||
239f9db9 | 2841 | static void |
971de7fb | 2842 | font_close_object (FRAME_PTR f, Lisp_Object font_object) |
c2f5bfd6 | 2843 | { |
35027d0c | 2844 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2845 | |
5e634ec9 KH |
2846 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2847 | /* Already closed. */ | |
2848 | return; | |
652b9560 | 2849 | FONT_ADD_LOG ("close", font_object, Qnil); |
5e634ec9 | 2850 | font->driver->close (f, font); |
819e81df | 2851 | #ifdef HAVE_WINDOW_SYSTEM |
5e634ec9 KH |
2852 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2853 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2854 | #endif |
5e634ec9 | 2855 | num_fonts--; |
c2f5bfd6 KH |
2856 | } |
2857 | ||
45eb10fb | 2858 | |
1701724c KH |
2859 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2860 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2861 | |
c2f5bfd6 | 2862 | int |
971de7fb | 2863 | font_has_char (FRAME_PTR f, Lisp_Object font, int c) |
c2f5bfd6 | 2864 | { |
1b834a8d | 2865 | struct font *fontp; |
c2f5bfd6 | 2866 | |
1b834a8d KH |
2867 | if (FONT_ENTITY_P (font)) |
2868 | { | |
2869 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2870 | struct font_driver_list *driver_list; | |
2871 | ||
2872 | for (driver_list = f->font_driver_list; | |
2873 | driver_list && ! EQ (driver_list->driver->type, type); | |
2874 | driver_list = driver_list->next); | |
2875 | if (! driver_list) | |
2876 | return 0; | |
2877 | if (! driver_list->driver->has_char) | |
2878 | return -1; | |
2879 | return driver_list->driver->has_char (font, c); | |
2880 | } | |
2881 | ||
d0ab1ebe | 2882 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 2883 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2884 | if (fontp->driver->has_char) |
2885 | { | |
35027d0c | 2886 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2887 | |
2888 | if (result >= 0) | |
2889 | return result; | |
2890 | } | |
2891 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2892 | } |
2893 | ||
45eb10fb KH |
2894 | |
2895 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2896 | ||
2f7c71a1 | 2897 | static unsigned |
971de7fb | 2898 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 2899 | { |
35027d0c | 2900 | struct font *font; |
c2f5bfd6 | 2901 | |
d0ab1ebe | 2902 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2903 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2904 | return font->driver->encode_char (font, c); |
2905 | } | |
2906 | ||
45eb10fb KH |
2907 | |
2908 | /* Return the name of FONT_OBJECT. */ | |
2909 | ||
ef18374f | 2910 | Lisp_Object |
971de7fb | 2911 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 2912 | { |
d0ab1ebe | 2913 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2914 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2915 | } |
2916 | ||
45eb10fb | 2917 | |
05802645 CY |
2918 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME |
2919 | could not be parsed by font_parse_name, return Qnil. */ | |
2920 | ||
35027d0c | 2921 | Lisp_Object |
971de7fb | 2922 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 2923 | { |
05802645 | 2924 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 2925 | |
05802645 | 2926 | CHECK_STRING (font_name); |
51b59d79 | 2927 | if (font_parse_name (SSDATA (font_name), spec) == -1) |
05802645 CY |
2928 | return Qnil; |
2929 | font_put_extra (spec, QCname, font_name); | |
42707278 | 2930 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 2931 | return spec; |
35027d0c KH |
2932 | } |
2933 | ||
45eb10fb | 2934 | |
35027d0c | 2935 | void |
971de7fb | 2936 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
2937 | { |
2938 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 2939 | |
35027d0c KH |
2940 | if (! FONTP (font)) |
2941 | return; | |
42707278 | 2942 | |
483670b5 KH |
2943 | if (! NILP (Ffont_get (font, QCname))) |
2944 | { | |
92470028 | 2945 | font = copy_font_spec (font); |
483670b5 KH |
2946 | font_put_extra (font, QCname, Qnil); |
2947 | } | |
2948 | ||
35027d0c | 2949 | if (NILP (AREF (font, prop)) |
e234927a CY |
2950 | && prop != FONT_FAMILY_INDEX |
2951 | && prop != FONT_FOUNDRY_INDEX | |
2952 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 2953 | && prop != FONT_SIZE_INDEX) |
35027d0c | 2954 | return; |
483670b5 | 2955 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
92470028 | 2956 | font = copy_font_spec (font); |
35027d0c | 2957 | ASET (font, prop, Qnil); |
4007dd1c | 2958 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 2959 | { |
4007dd1c | 2960 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
2961 | { |
2962 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
2963 | /* If we are setting the font family, we must also clear | |
2964 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
2965 | support for some widths. */ | |
2966 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
2967 | } | |
35027d0c | 2968 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 2969 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
2970 | ASET (font, FONT_SIZE_INDEX, Qnil); |
2971 | ASET (font, FONT_DPI_INDEX, Qnil); | |
2972 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
2973 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
2974 | } | |
2975 | else if (prop == FONT_SIZE_INDEX) | |
2976 | { | |
2977 | ASET (font, FONT_DPI_INDEX, Qnil); | |
2978 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
2979 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
2980 | } | |
e234927a CY |
2981 | else if (prop == FONT_WIDTH_INDEX) |
2982 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
2983 | attrs[LFACE_FONT_INDEX] = font; |
2984 | } | |
2985 | ||
56dd2d86 EZ |
2986 | /* Select a font from ENTITIES (list of font-entity vectors) that |
2987 | supports C and is the best match for ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
2988 | |
2989 | static Lisp_Object | |
971de7fb | 2990 | font_select_entity (Lisp_Object frame, Lisp_Object entities, Lisp_Object *attrs, int pixel_size, int c) |
988a7ddb KH |
2991 | { |
2992 | Lisp_Object font_entity; | |
2993 | Lisp_Object prefer; | |
988a7ddb KH |
2994 | int result, i; |
2995 | FRAME_PTR f = XFRAME (frame); | |
2996 | ||
72d36834 KH |
2997 | if (NILP (XCDR (entities)) |
2998 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 2999 | { |
72d36834 | 3000 | font_entity = AREF (XCAR (entities), 0); |
988a7ddb KH |
3001 | if (c < 0 |
3002 | || (result = font_has_char (f, font_entity, c)) > 0) | |
3003 | return font_entity; | |
3004 | return Qnil; | |
3005 | } | |
3006 | ||
3007 | /* Sort fonts by properties specified in ATTRS. */ | |
3008 | prefer = scratch_font_prefer; | |
3009 | ||
3010 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3011 | ASET (prefer, i, Qnil); | |
3012 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3013 | { | |
3014 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3015 | ||
3016 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3017 | ASET (prefer, i, AREF (face_font, i)); | |
3018 | } | |
3019 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3020 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3021 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3022 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3023 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3024 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3025 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3026 | |
2645d15b | 3027 | return font_sort_entities (entities, prefer, frame, c); |
988a7ddb KH |
3028 | } |
3029 | ||
56dd2d86 EZ |
3030 | /* Return a font-entity that satisfies SPEC and is the best match for |
3031 | face's font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3032 | character that the entity must support. */ |
c2f5bfd6 KH |
3033 | |
3034 | Lisp_Object | |
971de7fb | 3035 | font_find_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3036 | { |
4007dd1c | 3037 | Lisp_Object work; |
72d36834 | 3038 | Lisp_Object frame, entities, val; |
78834453 | 3039 | Lisp_Object foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3040 | int pixel_size; |
72d36834 | 3041 | int i, j, k, l; |
d0a47776 KH |
3042 | |
3043 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3044 | if (NILP (registry[0])) | |
3045 | { | |
edfda783 | 3046 | registry[0] = DEFAULT_ENCODING; |
d0a47776 KH |
3047 | registry[1] = Qascii_0; |
3048 | registry[2] = null_vector; | |
3049 | } | |
3050 | else | |
3051 | registry[1] = null_vector; | |
c2f5bfd6 | 3052 | |
4007dd1c | 3053 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3054 | { |
35027d0c | 3055 | struct charset *encoding, *repertory; |
1701724c | 3056 | |
4007dd1c KH |
3057 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3058 | &encoding, &repertory) < 0) | |
35027d0c | 3059 | return Qnil; |
72d36834 KH |
3060 | if (repertory |
3061 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3062 | return Qnil; | |
35027d0c KH |
3063 | else if (c > encoding->max_char) |
3064 | return Qnil; | |
c2f5bfd6 KH |
3065 | } |
3066 | ||
92470028 | 3067 | work = copy_font_spec (spec); |
227f12fa | 3068 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
35027d0c | 3069 | XSETFRAME (frame, f); |
1d1e1245 | 3070 | pixel_size = font_pixel_size (f, spec); |
dbc05432 | 3071 | if (pixel_size == 0 && INTEGERP (attrs[LFACE_HEIGHT_INDEX])) |
1d1e1245 KH |
3072 | { |
3073 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3074 | ||
3075 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
3076 | } | |
4007dd1c KH |
3077 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3078 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3079 | if (! NILP (foundry[0])) | |
3080 | foundry[1] = null_vector; | |
3081 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
3082 | { | |
071132a9 | 3083 | val = attrs[LFACE_FOUNDRY_INDEX]; |
51b59d79 | 3084 | foundry[0] = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
4007dd1c KH |
3085 | foundry[1] = Qnil; |
3086 | foundry[2] = null_vector; | |
3087 | } | |
3088 | else | |
3089 | foundry[0] = Qnil, foundry[1] = null_vector; | |
3090 | ||
22459668 KH |
3091 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3092 | if (! NILP (adstyle[0])) | |
3093 | adstyle[1] = null_vector; | |
3094 | else if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3095 | { | |
3096 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3097 | ||
3098 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3099 | { | |
3100 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3101 | adstyle[1] = Qnil; | |
3102 | adstyle[2] = null_vector; | |
3103 | } | |
3104 | else | |
3105 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3106 | } | |
3107 | else | |
3108 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3109 | ||
3110 | ||
4007dd1c KH |
3111 | val = AREF (work, FONT_FAMILY_INDEX); |
3112 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3113 | { |
3114 | val = attrs[LFACE_FAMILY_INDEX]; | |
51b59d79 | 3115 | val = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
071132a9 | 3116 | } |
4007dd1c KH |
3117 | if (NILP (val)) |
3118 | { | |
3119 | family = alloca ((sizeof family[0]) * 2); | |
3120 | family[0] = Qnil; | |
3121 | family[1] = null_vector; /* terminator. */ | |
3122 | } | |
3123 | else | |
3124 | { | |
3125 | Lisp_Object alters | |
819ab95f | 3126 | = Fassoc_string (val, Vface_alternative_font_family_alist, |
7107c29e | 3127 | /* Font family names are case-sensitive under NS. */ |
819ab95f KH |
3128 | #ifndef HAVE_NS |
3129 | Qt | |
3130 | #else | |
3131 | Qnil | |
3132 | #endif | |
3133 | ); | |
4007dd1c KH |
3134 | |
3135 | if (! NILP (alters)) | |
3136 | { | |
3137 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
3138 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
3139 | family[i] = XCAR (alters); | |
3140 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3141 | family[i++] = Qnil; | |
3142 | family[i] = null_vector; | |
3143 | } | |
3144 | else | |
3145 | { | |
3146 | family = alloca ((sizeof family[0]) * 3); | |
3147 | i = 0; | |
3148 | family[i++] = val; | |
3149 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3150 | family[i++] = Qnil; | |
3151 | family[i] = null_vector; | |
3152 | } | |
3153 | } | |
3154 | ||
d0a47776 | 3155 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3156 | { |
d0a47776 KH |
3157 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3158 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3159 | { |
d0a47776 KH |
3160 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3161 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3162 | { | |
904a2e0e | 3163 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3164 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3165 | { | |
3166 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
3167 | entities = font_list_entities (frame, work); | |
72d36834 | 3168 | if (! NILP (entities)) |
988a7ddb KH |
3169 | { |
3170 | val = font_select_entity (frame, entities, | |
3171 | attrs, pixel_size, c); | |
3172 | if (! NILP (val)) | |
637fa988 | 3173 | return val; |
988a7ddb | 3174 | } |
22459668 | 3175 | } |
d0a47776 | 3176 | } |
4007dd1c | 3177 | } |
4007dd1c | 3178 | } |
d0a47776 | 3179 | return Qnil; |
1701724c | 3180 | } |
45eb10fb KH |
3181 | |
3182 | ||
c2f5bfd6 | 3183 | Lisp_Object |
971de7fb | 3184 | font_open_for_lface (FRAME_PTR f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3185 | { |
9331887d | 3186 | int size; |
c2f5bfd6 | 3187 | |
4007dd1c KH |
3188 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3189 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3190 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3191 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3192 | size = font_pixel_size (f, spec); |
733fd013 KH |
3193 | else |
3194 | { | |
50b0cd29 CY |
3195 | double pt; |
3196 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3197 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3198 | else | |
3199 | { | |
3200 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3201 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3202 | if (INTEGERP (height)) | |
3203 | pt = XINT (height); | |
3204 | else | |
3205 | abort(); /* We should never end up here. */ | |
3206 | } | |
733fd013 KH |
3207 | |
3208 | pt /= 10; | |
3209 | size = POINT_TO_PIXEL (pt, f->resy); | |
ed96cde8 AR |
3210 | #ifdef HAVE_NS |
3211 | if (size == 0) | |
3212 | { | |
3213 | Lisp_Object ffsize = get_frame_param(f, Qfontsize); | |
3214 | size = NUMBERP (ffsize) ? POINT_TO_PIXEL (XINT (ffsize), f->resy) : 0; | |
3215 | } | |
3216 | #endif | |
733fd013 | 3217 | } |
c2f5bfd6 KH |
3218 | return font_open_entity (f, entity, size); |
3219 | } | |
3220 | ||
45eb10fb | 3221 | |
56dd2d86 EZ |
3222 | /* Find a font that satisfies SPEC and is the best match for |
3223 | face's attributes in ATTRS on FRAME, and return the opened | |
35027d0c | 3224 | font-object. */ |
45eb10fb | 3225 | |
35027d0c | 3226 | Lisp_Object |
971de7fb | 3227 | font_load_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3228 | { |
637fa988 | 3229 | Lisp_Object entity, name; |
ef18374f | 3230 | |
908567ef | 3231 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3232 | if (NILP (entity)) |
ef18374f | 3233 | { |
35027d0c | 3234 | /* No font is listed for SPEC, but each font-backend may have |
56dd2d86 | 3235 | different criteria about "font matching". So, try it. */ |
35027d0c KH |
3236 | entity = font_matching_entity (f, attrs, spec); |
3237 | if (NILP (entity)) | |
3238 | return Qnil; | |
c2f5bfd6 | 3239 | } |
537b04b9 | 3240 | /* Don't lose the original name that was put in initially. We need |
637fa988 JD |
3241 | it to re-apply the font when font parameters (like hinting or dpi) have |
3242 | changed. */ | |
3243 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3244 | if (!NILP (entity)) |
3245 | { | |
42707278 JD |
3246 | name = Ffont_get (spec, QCuser_spec); |
3247 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3248 | } |
637fa988 | 3249 | return entity; |
c2f5bfd6 KH |
3250 | } |
3251 | ||
45eb10fb KH |
3252 | |
3253 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3254 | ||
c2f5bfd6 | 3255 | void |
971de7fb | 3256 | font_prepare_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3257 | { |
35027d0c KH |
3258 | if (face->font->driver->prepare_face) |
3259 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3260 | } |
3261 | ||
45eb10fb KH |
3262 | |
3263 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3264 | ||
c2f5bfd6 | 3265 | void |
971de7fb | 3266 | font_done_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3267 | { |
35027d0c KH |
3268 | if (face->font->driver->done_face) |
3269 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3270 | face->extra = NULL; |
3271 | } | |
3272 | ||
45eb10fb | 3273 | |
56dd2d86 | 3274 | /* Open a font that is a match for font-spec SPEC on frame F. If no proper |
c50b7e98 | 3275 | font is found, return Qnil. */ |
45eb10fb | 3276 | |
c2f5bfd6 | 3277 | Lisp_Object |
971de7fb | 3278 | font_open_by_spec (FRAME_PTR f, Lisp_Object spec) |
c2f5bfd6 | 3279 | { |
c50b7e98 | 3280 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3281 | |
4007dd1c KH |
3282 | /* We set up the default font-related attributes of a face to prefer |
3283 | a moderate font. */ | |
3284 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3285 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3286 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3287 | #ifndef HAVE_NS |
4007dd1c | 3288 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3289 | #else |
3290 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3291 | #endif | |
4007dd1c KH |
3292 | attrs[LFACE_FONT_INDEX] = Qnil; |
3293 | ||
3294 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3295 | } |
3296 | ||
3297 | ||
56dd2d86 | 3298 | /* Open a font that matches NAME on frame F. If no proper font is |
c50b7e98 KH |
3299 | found, return Qnil. */ |
3300 | ||
3301 | Lisp_Object | |
42ca4633 | 3302 | font_open_by_name (FRAME_PTR f, const char *name) |
c50b7e98 KH |
3303 | { |
3304 | Lisp_Object args[2]; | |
581e51e8 | 3305 | Lisp_Object spec, ret; |
c50b7e98 KH |
3306 | |
3307 | args[0] = QCname; | |
3308 | args[1] = make_unibyte_string (name, strlen (name)); | |
3309 | spec = Ffont_spec (2, args); | |
581e51e8 | 3310 | ret = font_open_by_spec (f, spec); |
537b04b9 | 3311 | /* Do not lose name originally put in. */ |
8096a0ff | 3312 | if (!NILP (ret)) |
42707278 | 3313 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3314 | |
3315 | return ret; | |
c50b7e98 KH |
3316 | } |
3317 | ||
3318 | ||
c2f5bfd6 KH |
3319 | /* Register font-driver DRIVER. This function is used in two ways. |
3320 | ||
417a1b10 | 3321 | The first is with frame F non-NULL. In this case, make DRIVER |
56dd2d86 | 3322 | available (but not yet activated) on F. All frame creators |
417a1b10 KH |
3323 | (e.g. Fx_create_frame) must call this function at least once with |
3324 | an available font-driver. | |
c2f5bfd6 KH |
3325 | |
3326 | The second is with frame F NULL. In this case, DRIVER is globally | |
3327 | registered in the variable `font_driver_list'. All font-driver | |
3328 | implementations must call this function in its syms_of_XXXX | |
3329 | (e.g. syms_of_xfont). */ | |
3330 | ||
3331 | void | |
971de7fb | 3332 | register_font_driver (struct font_driver *driver, FRAME_PTR f) |
c2f5bfd6 KH |
3333 | { |
3334 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3335 | struct font_driver_list *prev, *list; | |
3336 | ||
3337 | if (f && ! driver->draw) | |
43a1d19b | 3338 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3339 | SDATA (SYMBOL_NAME (driver->type))); |
3340 | ||
3341 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3342 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3343 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3344 | ||
c115043b | 3345 | list = xmalloc (sizeof (struct font_driver_list)); |
417a1b10 | 3346 | list->on = 0; |
c2f5bfd6 KH |
3347 | list->driver = driver; |
3348 | list->next = NULL; | |
3349 | if (prev) | |
3350 | prev->next = list; | |
3351 | else if (f) | |
3352 | f->font_driver_list = list; | |
3353 | else | |
3354 | font_driver_list = list; | |
72606e45 KH |
3355 | if (! f) |
3356 | num_font_drivers++; | |
c2f5bfd6 KH |
3357 | } |
3358 | ||
2ed98482 | 3359 | void |
971de7fb | 3360 | free_font_driver_list (FRAME_PTR f) |
2ed98482 CY |
3361 | { |
3362 | struct font_driver_list *list, *next; | |
3363 | ||
3364 | for (list = f->font_driver_list; list; list = next) | |
3365 | { | |
3366 | next = list->next; | |
3367 | xfree (list); | |
3368 | } | |
3369 | f->font_driver_list = NULL; | |
3370 | } | |
3371 | ||
45eb10fb | 3372 | |
f697fff0 | 3373 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3374 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3375 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3376 | |
ca4da08a KH |
3377 | A caller must free all realized faces if any in advance. The |
3378 | return value is a list of font backends actually made used on | |
3379 | F. */ | |
e950d6f1 KH |
3380 | |
3381 | Lisp_Object | |
971de7fb | 3382 | font_update_drivers (FRAME_PTR f, Lisp_Object new_drivers) |
417a1b10 KH |
3383 | { |
3384 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
3385 | struct font_driver_list *list; |
3386 | ||
4007dd1c KH |
3387 | /* At first, turn off non-requested drivers, and turn on requested |
3388 | drivers. */ | |
f697fff0 | 3389 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c | 3390 | { |
13a547c6 | 3391 | struct font_driver *driver = list->driver; |
4007dd1c KH |
3392 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) |
3393 | != list->on) | |
3394 | { | |
3395 | if (list->on) | |
3396 | { | |
3397 | if (driver->end_for_frame) | |
3398 | driver->end_for_frame (f); | |
3399 | font_finish_cache (f, driver); | |
3400 | list->on = 0; | |
3401 | } | |
3402 | else | |
3403 | { | |
3404 | if (! driver->start_for_frame | |
3405 | || driver->start_for_frame (f) == 0) | |
3406 | { | |
3407 | font_prepare_cache (f, driver); | |
3408 | list->on = 1; | |
3409 | } | |
3410 | } | |
3411 | } | |
3412 | } | |
3413 | ||
3414 | if (NILP (new_drivers)) | |
3415 | return Qnil; | |
3416 | ||
3417 | if (! EQ (new_drivers, Qt)) | |
3418 | { | |
3419 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3420 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3421 | Lisp_Object tail; |
3422 | int i; | |
3423 | ||
3424 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3425 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3426 | { | |
3427 | for (list = f->font_driver_list; list; list = list->next) | |
3428 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3429 | break; | |
3430 | if (list) | |
3431 | list_table[i++] = list; | |
3432 | } | |
3433 | for (list = f->font_driver_list; list; list = list->next) | |
3434 | if (! list->on) | |
6136b72f | 3435 | list_table[i++] = list; |
4007dd1c KH |
3436 | list_table[i] = NULL; |
3437 | ||
3306c6dc | 3438 | next = &f->font_driver_list; |
4007dd1c KH |
3439 | for (i = 0; list_table[i]; i++) |
3440 | { | |
3306c6dc AS |
3441 | *next = list_table[i]; |
3442 | next = &(*next)->next; | |
4007dd1c | 3443 | } |
3306c6dc | 3444 | *next = NULL; |
ba98e3a0 SM |
3445 | |
3446 | if (! f->font_driver_list->on) | |
3447 | { /* None of the drivers is enabled: enable them all. | |
3448 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3449 | and then use it under w32 or ns. */ | |
3450 | for (list = f->font_driver_list; list; list = list->next) | |
3451 | { | |
3452 | struct font_driver *driver = list->driver; | |
3453 | eassert (! list->on); | |
3454 | if (! driver->start_for_frame | |
3455 | || driver->start_for_frame (f) == 0) | |
3456 | { | |
3457 | font_prepare_cache (f, driver); | |
3458 | list->on = 1; | |
3459 | } | |
3460 | } | |
3461 | } | |
4007dd1c | 3462 | } |
417a1b10 | 3463 | |
4007dd1c KH |
3464 | for (list = f->font_driver_list; list; list = list->next) |
3465 | if (list->on) | |
3466 | active_drivers = nconc2 (active_drivers, | |
3467 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3468 | return active_drivers; |
417a1b10 KH |
3469 | } |
3470 | ||
f697fff0 | 3471 | int |
971de7fb | 3472 | font_put_frame_data (FRAME_PTR f, struct font_driver *driver, void *data) |
f697fff0 KH |
3473 | { |
3474 | struct font_data_list *list, *prev; | |
3475 | ||
3476 | for (prev = NULL, list = f->font_data_list; list; | |
3477 | prev = list, list = list->next) | |
3478 | if (list->driver == driver) | |
3479 | break; | |
3480 | if (! data) | |
3481 | { | |
3482 | if (list) | |
3483 | { | |
3484 | if (prev) | |
3485 | prev->next = list->next; | |
3486 | else | |
3487 | f->font_data_list = list->next; | |
973e7849 | 3488 | xfree (list); |
f697fff0 KH |
3489 | } |
3490 | return 0; | |
3491 | } | |
3492 | ||
3493 | if (! list) | |
3494 | { | |
c115043b | 3495 | list = xmalloc (sizeof (struct font_data_list)); |
f697fff0 KH |
3496 | list->driver = driver; |
3497 | list->next = f->font_data_list; | |
3498 | f->font_data_list = list; | |
3499 | } | |
3500 | list->data = data; | |
3501 | return 0; | |
3502 | } | |
3503 | ||
3504 | ||
3505 | void * | |
971de7fb | 3506 | font_get_frame_data (FRAME_PTR f, struct font_driver *driver) |
f697fff0 KH |
3507 | { |
3508 | struct font_data_list *list; | |
3509 | ||
3510 | for (list = f->font_data_list; list; list = list->next) | |
3511 | if (list->driver == driver) | |
3512 | break; | |
3513 | if (! list) | |
3514 | return NULL; | |
3515 | return list->data; | |
3516 | } | |
3517 | ||
417a1b10 | 3518 | |
9fa82824 DP |
3519 | /* Sets attributes on a font. Any properties that appear in ALIST and |
3520 | BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font. | |
3521 | BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated | |
3522 | arrays of strings. This function is intended for use by the font | |
3523 | drivers to implement their specific font_filter_properties. */ | |
3524 | void | |
220d91b8 JB |
3525 | font_filter_properties (Lisp_Object font, |
3526 | Lisp_Object alist, | |
3106121c YM |
3527 | const char *const boolean_properties[], |
3528 | const char *const non_boolean_properties[]) | |
9fa82824 DP |
3529 | { |
3530 | Lisp_Object it; | |
3531 | int i; | |
3532 | ||
3533 | /* Set boolean values to Qt or Qnil */ | |
3534 | for (i = 0; boolean_properties[i] != NULL; ++i) | |
3535 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3536 | { | |
3537 | Lisp_Object key = XCAR (XCAR (it)); | |
3538 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3539 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3540 | |
3541 | if (strcmp (boolean_properties[i], keystr) == 0) | |
3542 | { | |
3543 | const char *str = INTEGERP (val) ? (XINT (val) ? "true" : "false") | |
51b59d79 | 3544 | : SYMBOLP (val) ? SSDATA (SYMBOL_NAME (val)) |
9fa82824 DP |
3545 | : "true"; |
3546 | ||
3547 | if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0 | |
3548 | || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0 | |
3549 | || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0 | |
3550 | || strcmp ("Off", str) == 0) | |
3551 | val = Qnil; | |
3552 | else | |
3553 | val = Qt; | |
3554 | ||
3555 | Ffont_put (font, key, val); | |
3556 | } | |
3557 | } | |
3558 | ||
3559 | for (i = 0; non_boolean_properties[i] != NULL; ++i) | |
3560 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3561 | { | |
3562 | Lisp_Object key = XCAR (XCAR (it)); | |
3563 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3564 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3565 | if (strcmp (non_boolean_properties[i], keystr) == 0) |
3566 | Ffont_put (font, key, val); | |
3567 | } | |
3568 | } | |
3569 | ||
3570 | ||
45eb10fb | 3571 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3572 | POS in window W. If STRING is non-nil, it is a string containing C |
3573 | at index POS. If C is negative, get C from the current buffer or | |
3574 | STRING. */ | |
45eb10fb | 3575 | |
2f7c71a1 AS |
3576 | static Lisp_Object |
3577 | font_at (int c, EMACS_INT pos, struct face *face, struct window *w, | |
3578 | Lisp_Object string) | |
10d16101 KH |
3579 | { |
3580 | FRAME_PTR f; | |
e3ee0340 | 3581 | int multibyte; |
35027d0c | 3582 | Lisp_Object font_object; |
e3ee0340 | 3583 | |
e500c47d | 3584 | multibyte = (NILP (string) |
4b4deea2 | 3585 | ? ! NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e500c47d | 3586 | : STRING_MULTIBYTE (string)); |
e3ee0340 KH |
3587 | if (c < 0) |
3588 | { | |
3589 | if (NILP (string)) | |
3590 | { | |
e3ee0340 KH |
3591 | if (multibyte) |
3592 | { | |
3593 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3594 | ||
3595 | c = FETCH_CHAR (pos_byte); | |
3596 | } | |
3597 | else | |
3598 | c = FETCH_BYTE (pos); | |
3599 | } | |
3600 | else | |
3601 | { | |
3602 | unsigned char *str; | |
3603 | ||
3604 | multibyte = STRING_MULTIBYTE (string); | |
3605 | if (multibyte) | |
3606 | { | |
3607 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3608 | ||
3609 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3610 | c = STRING_CHAR (str); |
e3ee0340 KH |
3611 | } |
3612 | else | |
3613 | c = SDATA (string)[pos]; | |
3614 | } | |
3615 | } | |
10d16101 KH |
3616 | |
3617 | f = XFRAME (w->frame); | |
1385a806 KH |
3618 | if (! FRAME_WINDOW_P (f)) |
3619 | return Qnil; | |
10d16101 KH |
3620 | if (! face) |
3621 | { | |
e3ee0340 | 3622 | int face_id; |
0f8b27ea | 3623 | EMACS_INT endptr; |
e3ee0340 KH |
3624 | |
3625 | if (STRINGP (string)) | |
3626 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3627 | DEFAULT_FACE_ID, 0); |
3628 | else | |
e3ee0340 | 3629 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
6970f632 | 3630 | pos + 100, 0, -1); |
10d16101 KH |
3631 | face = FACE_FROM_ID (f, face_id); |
3632 | } | |
e3ee0340 KH |
3633 | if (multibyte) |
3634 | { | |
3635 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3636 | face = FACE_FROM_ID (f, face_id); | |
3637 | } | |
35027d0c | 3638 | if (! face->font) |
10d16101 | 3639 | return Qnil; |
35027d0c | 3640 | |
35027d0c KH |
3641 | XSETFONT (font_object, face->font); |
3642 | return font_object; | |
3643 | } | |
3644 | ||
3645 | ||
071132a9 KH |
3646 | #ifdef HAVE_WINDOW_SYSTEM |
3647 | ||
3648 | /* Check how many characters after POS (at most to *LIMIT) can be | |
56dd2d86 | 3649 | displayed by the same font in the window W. FACE, if non-NULL, is |
071132a9 KH |
3650 | the face selected for the character at POS. If STRING is not nil, |
3651 | it is the string to check instead of the current buffer. In that | |
3652 | case, FACE must be not NULL. | |
027a33c0 | 3653 | |
071132a9 KH |
3654 | The return value is the font-object for the character at POS. |
3655 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3656 | |
071132a9 KH |
3657 | It is assured that the current buffer (or STRING) is multibyte. */ |
3658 | ||
3659 | Lisp_Object | |
971de7fb | 3660 | font_range (EMACS_INT pos, EMACS_INT *limit, struct window *w, struct face *face, Lisp_Object string) |
35027d0c | 3661 | { |
0e5d7800 | 3662 | EMACS_INT pos_byte, ignore; |
35027d0c | 3663 | int c; |
071132a9 | 3664 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3665 | |
3666 | if (NILP (string)) | |
3667 | { | |
35027d0c | 3668 | pos_byte = CHAR_TO_BYTE (pos); |
071132a9 KH |
3669 | if (! face) |
3670 | { | |
3671 | int face_id; | |
3672 | ||
6970f632 CY |
3673 | face_id = face_at_buffer_position (w, pos, 0, 0, &ignore, |
3674 | *limit, 0, -1); | |
071132a9 KH |
3675 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
3676 | } | |
35027d0c KH |
3677 | } |
3678 | else | |
3679 | { | |
071132a9 | 3680 | font_assert (face); |
35027d0c KH |
3681 | pos_byte = string_char_to_byte (string, pos); |
3682 | } | |
3683 | ||
071132a9 | 3684 | while (pos < *limit) |
35027d0c | 3685 | { |
071132a9 | 3686 | Lisp_Object category; |
35027d0c KH |
3687 | |
3688 | if (NILP (string)) | |
3689 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3690 | else | |
3691 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 | 3692 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
c805dec0 KH |
3693 | if (INTEGERP (category) |
3694 | && (XINT (category) == UNICODE_CATEGORY_Cf | |
3695 | || CHAR_VARIATION_SELECTOR_P (c))) | |
0e5d7800 | 3696 | continue; |
071132a9 | 3697 | if (NILP (font_object)) |
35027d0c | 3698 | { |
071132a9 KH |
3699 | font_object = font_for_char (face, c, pos - 1, string); |
3700 | if (NILP (font_object)) | |
3701 | return Qnil; | |
35027d0c KH |
3702 | continue; |
3703 | } | |
0e5d7800 KH |
3704 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3705 | *limit = pos - 1; | |
35027d0c | 3706 | } |
071132a9 | 3707 | return font_object; |
10d16101 | 3708 | } |
071132a9 | 3709 | #endif |
10d16101 | 3710 | |
c2f5bfd6 KH |
3711 | \f |
3712 | /* Lisp API */ | |
3713 | ||
35027d0c | 3714 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3715 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3716 | Return nil otherwise. |
3717 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3718 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3719 | `font-object'. */) |
5842a27b | 3720 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3721 | { |
35027d0c KH |
3722 | if (NILP (extra_type)) |
3723 | return (FONTP (object) ? Qt : Qnil); | |
3724 | if (EQ (extra_type, Qfont_spec)) | |
3725 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3726 | if (EQ (extra_type, Qfont_entity)) | |
3727 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3728 | if (EQ (extra_type, Qfont_object)) | |
3729 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3730 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3731 | } |
3732 | ||
a7ca3326 | 3733 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, |
45eb10fb KH |
3734 | doc: /* Return a newly created font-spec with arguments as properties. |
3735 | ||
3736 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3737 | valid font property name listed below: | |
3738 | ||
3739 | `:family', `:weight', `:slant', `:width' | |
3740 | ||
3741 | They are the same as face attributes of the same name. See | |
51c01100 | 3742 | `set-face-attribute'. |
45eb10fb KH |
3743 | |
3744 | `:foundry' | |
3745 | ||
3746 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3747 | ||
3748 | `:adstyle' | |
3749 | ||
3750 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3751 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3752 | |
3753 | `:registry' | |
3754 | ||
3755 | VALUE must be a string or a symbol specifying the charset registry and | |
3756 | encoding of a font, e.g. ``iso8859-1''. | |
3757 | ||
3758 | `:size' | |
3759 | ||
3760 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3761 | specifying the font size. It specifies the font size in pixels (if |
3762 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3763 | |
3764 | `:name' | |
3765 | ||
7a18a178 | 3766 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3767 | |
3768 | `:script' | |
3769 | ||
3770 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3771 | support. It may be a symbol representing a subgroup of a script |
3772 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3773 | |
3774 | `:lang' | |
3775 | ||
3776 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3777 | e.g. `ja'. | |
3778 | ||
3779 | `:otf' | |
3780 | ||
3781 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3782 | required OpenType features. | |
3783 | ||
3784 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3785 | LANGSYS-TAG: OpenType language system tag symbol, | |
3786 | or nil for the default language system. | |
3787 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3788 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3789 | ||
3790 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3791 | must not have any of the remaining elements. | |
3792 | ||
3793 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
56dd2d86 | 3794 | be an OpenType font whose GPOS table of `thai' script's default |
c423ecca KH |
3795 | language system must contain `mark' feature. |
3796 | ||
ba3de0e8 | 3797 | usage: (font-spec ARGS...) */) |
f66c7cf8 | 3798 | (ptrdiff_t nargs, Lisp_Object *args) |
c2f5bfd6 | 3799 | { |
35027d0c | 3800 | Lisp_Object spec = font_make_spec (); |
f66c7cf8 | 3801 | ptrdiff_t i; |
c2f5bfd6 KH |
3802 | |
3803 | for (i = 0; i < nargs; i += 2) | |
3804 | { | |
cccd42d5 KH |
3805 | Lisp_Object key = args[i], val; |
3806 | ||
3807 | CHECK_SYMBOL (key); | |
3808 | if (i + 1 >= nargs) | |
3809 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3810 | val = args[i + 1]; | |
c2f5bfd6 | 3811 | |
35027d0c KH |
3812 | if (EQ (key, QCname)) |
3813 | { | |
3814 | CHECK_STRING (val); | |
51b59d79 | 3815 | font_parse_name (SSDATA (val), spec); |
35027d0c KH |
3816 | font_put_extra (spec, key, val); |
3817 | } | |
c2f5bfd6 | 3818 | else |
4485a28e | 3819 | { |
35027d0c KH |
3820 | int idx = get_font_prop_index (key); |
3821 | ||
3822 | if (idx >= 0) | |
ec6fe57c | 3823 | { |
35027d0c KH |
3824 | val = font_prop_validate (idx, Qnil, val); |
3825 | if (idx < FONT_EXTRA_INDEX) | |
3826 | ASET (spec, idx, val); | |
3827 | else | |
3828 | font_put_extra (spec, key, val); | |
ec6fe57c | 3829 | } |
35027d0c KH |
3830 | else |
3831 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3832 | } |
e950d6f1 | 3833 | } |
c2f5bfd6 KH |
3834 | return spec; |
3835 | } | |
3836 | ||
92470028 PE |
3837 | /* Return a copy of FONT as a font-spec. */ |
3838 | Lisp_Object | |
3839 | copy_font_spec (Lisp_Object font) | |
35027d0c | 3840 | { |
d26424c5 | 3841 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3842 | int i; |
3843 | ||
3844 | CHECK_FONT (font); | |
3845 | new_spec = font_make_spec (); | |
3846 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3847 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 3848 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
3849 | /* We must remove :font-entity property. */ |
3850 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3851 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3852 | { | |
3853 | if (NILP (prev)) | |
3854 | extra = XCDR (extra); | |
3855 | else | |
3856 | XSETCDR (prev, XCDR (tail)); | |
3857 | break; | |
3858 | } | |
35027d0c KH |
3859 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3860 | return new_spec; | |
3861 | } | |
3862 | ||
92470028 PE |
3863 | /* Merge font-specs FROM and TO, and return a new font-spec. |
3864 | Every specified property in FROM overrides the corresponding | |
3865 | property in TO. */ | |
3866 | Lisp_Object | |
3867 | merge_font_spec (Lisp_Object from, Lisp_Object to) | |
35027d0c KH |
3868 | { |
3869 | Lisp_Object extra, tail; | |
3870 | int i; | |
3871 | ||
3872 | CHECK_FONT (from); | |
3873 | CHECK_FONT (to); | |
92470028 | 3874 | to = copy_font_spec (to); |
35027d0c KH |
3875 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
3876 | ASET (to, i, AREF (from, i)); | |
3877 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3878 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3879 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3880 | { | |
3881 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3882 | ||
3883 | if (! NILP (slot)) | |
3884 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3885 | else | |
3886 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3887 | } | |
3888 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3889 | return to; | |
3890 | } | |
c2f5bfd6 | 3891 | |
a7ca3326 | 3892 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, |
45eb10fb | 3893 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 3894 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 3895 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 3896 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 3897 | :size, :name, :script, :otf |
5bdd4dd2 | 3898 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
3899 | In addition, if FONT is a font-entity or a font-object, values of |
3900 | :script and :otf are different from those of a font-spec as below: | |
3901 | ||
3902 | The value of :script may be a list of scripts that are supported by the font. | |
3903 | ||
3904 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
3905 | representing the OpenType features supported by the font by this form: | |
3906 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3907 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
3908 | Layout tags. */) | |
5842a27b | 3909 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 3910 | { |
35027d0c | 3911 | int idx; |
a7840ffb | 3912 | Lisp_Object val; |
c2f5bfd6 | 3913 | |
35027d0c KH |
3914 | CHECK_FONT (font); |
3915 | CHECK_SYMBOL (key); | |
e80e09b4 | 3916 | |
35027d0c | 3917 | idx = get_font_prop_index (key); |
2babb359 KH |
3918 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3919 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 3920 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 3921 | return AREF (font, idx); |
a7840ffb KH |
3922 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
3923 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
3924 | { | |
3925 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 3926 | |
f6c1c771 KH |
3927 | if (fontp->driver->otf_capability) |
3928 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 3929 | else |
f6c1c771 | 3930 | val = Fcons (Qnil, Qnil); |
a7840ffb KH |
3931 | } |
3932 | else | |
3933 | val = Fcdr (val); | |
3934 | return val; | |
c2f5bfd6 KH |
3935 | } |
3936 | ||
51cf11be AS |
3937 | #ifdef HAVE_WINDOW_SYSTEM |
3938 | ||
b1868a1a CY |
3939 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
3940 | doc: /* Return a plist of face attributes generated by FONT. | |
3941 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
3942 | The return value is a list of the form | |
3943 | ||
6f568955 | 3944 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 3945 | |
48105a6a | 3946 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
3947 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
3948 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 3949 | |
48105a6a JB |
3950 | The optional argument FRAME specifies the frame that the face attributes |
3951 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 3952 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a CY |
3953 | { |
3954 | struct frame *f; | |
3955 | Lisp_Object plist[10]; | |
3956 | Lisp_Object val; | |
5989ba2f | 3957 | int n = 0; |
b1868a1a CY |
3958 | |
3959 | if (NILP (frame)) | |
3960 | frame = selected_frame; | |
3961 | CHECK_LIVE_FRAME (frame); | |
3962 | f = XFRAME (frame); | |
3963 | ||
3964 | if (STRINGP (font)) | |
3965 | { | |
3966 | int fontset = fs_query_fontset (font, 0); | |
3967 | Lisp_Object name = font; | |
3968 | if (fontset >= 0) | |
3969 | font = fontset_ascii (fontset); | |
3970 | font = font_spec_from_name (name); | |
3971 | if (! FONTP (font)) | |
3972 | signal_error ("Invalid font name", name); | |
3973 | } | |
3974 | else if (! FONTP (font)) | |
3975 | signal_error ("Invalid font object", font); | |
3976 | ||
b1868a1a | 3977 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
3978 | if (! NILP (val)) |
3979 | { | |
3980 | plist[n++] = QCfamily; | |
3981 | plist[n++] = SYMBOL_NAME (val); | |
3982 | } | |
b1868a1a | 3983 | |
b1868a1a CY |
3984 | val = AREF (font, FONT_SIZE_INDEX); |
3985 | if (INTEGERP (val)) | |
3986 | { | |
3987 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
3988 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy; | |
5989ba2f | 3989 | plist[n++] = QCheight; |
c3bb5465 | 3990 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
3991 | } |
3992 | else if (FLOATP (val)) | |
5989ba2f CY |
3993 | { |
3994 | plist[n++] = QCheight; | |
3995 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
3996 | } | |
b1868a1a | 3997 | |
b1868a1a | 3998 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
3999 | if (! NILP (val)) |
4000 | { | |
4001 | plist[n++] = QCweight; | |
4002 | plist[n++] = val; | |
4003 | } | |
b1868a1a | 4004 | |
b1868a1a | 4005 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4006 | if (! NILP (val)) |
4007 | { | |
4008 | plist[n++] = QCslant; | |
4009 | plist[n++] = val; | |
4010 | } | |
b1868a1a | 4011 | |
b1868a1a | 4012 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4013 | if (! NILP (val)) |
4014 | { | |
4015 | plist[n++] = QCwidth; | |
4016 | plist[n++] = val; | |
4017 | } | |
b1868a1a | 4018 | |
5989ba2f | 4019 | return Flist (n, plist); |
b1868a1a | 4020 | } |
c2f5bfd6 | 4021 | |
51cf11be AS |
4022 | #endif |
4023 | ||
a7ca3326 | 4024 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4025 | doc: /* Set one property of FONT: give property KEY value VAL. |
4026 | FONT is a font-spec, a font-entity, or a font-object. | |
4027 | ||
4028 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4029 | accepted by the function `font-spec' (which see), VAL must be what | |
4030 | allowed in `font-spec'. | |
4031 | ||
4032 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4033 | accepted by `font-spec'. */) | |
e1ffae3b | 4034 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4035 | { |
35027d0c | 4036 | int idx; |
c2f5bfd6 | 4037 | |
35027d0c KH |
4038 | idx = get_font_prop_index (prop); |
4039 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4040 | { |
4041 | CHECK_FONT_SPEC (font); | |
4042 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4043 | } | |
c2f5bfd6 | 4044 | else |
a7840ffb KH |
4045 | { |
4046 | if (EQ (prop, QCname) | |
4047 | || EQ (prop, QCscript) | |
4048 | || EQ (prop, QClang) | |
4049 | || EQ (prop, QCotf)) | |
4050 | CHECK_FONT_SPEC (font); | |
4051 | else | |
4052 | CHECK_FONT (font); | |
4053 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4054 | } | |
c2f5bfd6 KH |
4055 | return val; |
4056 | } | |
4057 | ||
a7ca3326 | 4058 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, |
c2f5bfd6 KH |
4059 | doc: /* List available fonts matching FONT-SPEC on the current frame. |
4060 | Optional 2nd argument FRAME specifies the target frame. | |
4061 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4062 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4063 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4064 | how close they are to PREFER. */) |
5842a27b | 4065 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4066 | { |
72d36834 KH |
4067 | Lisp_Object vec, list; |
4068 | int n = 0; | |
c2f5bfd6 KH |
4069 | |
4070 | if (NILP (frame)) | |
4071 | frame = selected_frame; | |
4072 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 4073 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4074 | if (! NILP (num)) |
4075 | { | |
4076 | CHECK_NUMBER (num); | |
4077 | n = XINT (num); | |
4078 | if (n <= 0) | |
4079 | return Qnil; | |
4080 | } | |
4081 | if (! NILP (prefer)) | |
35027d0c | 4082 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4083 | |
72d36834 KH |
4084 | list = font_list_entities (frame, font_spec); |
4085 | if (NILP (list)) | |
c2f5bfd6 | 4086 | return Qnil; |
72d36834 KH |
4087 | if (NILP (XCDR (list)) |
4088 | && ASIZE (XCAR (list)) == 1) | |
4089 | return Fcons (AREF (XCAR (list), 0), Qnil); | |
c2f5bfd6 KH |
4090 | |
4091 | if (! NILP (prefer)) | |
72d36834 KH |
4092 | vec = font_sort_entities (list, prefer, frame, 0); |
4093 | else | |
4094 | vec = font_vconcat_entity_vectors (list); | |
4095 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4096 | { |
72d36834 | 4097 | Lisp_Object args[2]; |
c2f5bfd6 | 4098 | |
72d36834 KH |
4099 | args[0] = vec; |
4100 | args[1] = Qnil; | |
4101 | list = Fappend (2, args); | |
4102 | } | |
4103 | else | |
4104 | { | |
4105 | for (list = Qnil, n--; n >= 0; n--) | |
4106 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4107 | } |
4108 | return list; | |
4109 | } | |
4110 | ||
35027d0c | 4111 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4112 | doc: /* List available font families on the current frame. |
027a33c0 | 4113 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
5842a27b | 4114 | (Lisp_Object frame) |
c2f5bfd6 KH |
4115 | { |
4116 | FRAME_PTR f; | |
4117 | struct font_driver_list *driver_list; | |
4118 | Lisp_Object list; | |
4119 | ||
4120 | if (NILP (frame)) | |
4121 | frame = selected_frame; | |
4122 | CHECK_LIVE_FRAME (frame); | |
4123 | f = XFRAME (frame); | |
4124 | list = Qnil; | |
4125 | for (driver_list = f->font_driver_list; driver_list; | |
4126 | driver_list = driver_list->next) | |
4127 | if (driver_list->driver->list_family) | |
4128 | { | |
4129 | Lisp_Object val = driver_list->driver->list_family (frame); | |
13bf758b | 4130 | Lisp_Object tail = list; |
c2f5bfd6 | 4131 | |
13bf758b CY |
4132 | for (; CONSP (val); val = XCDR (val)) |
4133 | if (NILP (Fmemq (XCAR (val), tail)) | |
4134 | && SYMBOLP (XCAR (val))) | |
4135 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4136 | } |
4137 | return list; | |
4138 | } | |
4139 | ||
4140 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4141 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4142 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4143 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4144 | { |
4145 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4146 | ||
4147 | if (CONSP (val)) | |
4148 | val = XCAR (val); | |
4149 | return val; | |
4150 | } | |
4151 | ||
a7ca3326 | 4152 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4153 | doc: /* Return XLFD name of FONT. |
4154 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4155 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4156 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
56dd2d86 | 4157 | the consecutive wildcards are folded into one. */) |
5842a27b | 4158 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4159 | { |
4160 | char name[256]; | |
4161 | int pixel_size = 0; | |
4162 | ||
35027d0c KH |
4163 | CHECK_FONT (font); |
4164 | ||
4165 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4166 | { |
35027d0c | 4167 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4168 | |
35027d0c KH |
4169 | if (STRINGP (font_name) |
4170 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4171 | { |
4172 | if (NILP (fold_wildcards)) | |
4173 | return font_name; | |
51b59d79 | 4174 | strcpy (name, SSDATA (font_name)); |
d0ab1ebe KH |
4175 | goto done; |
4176 | } | |
35027d0c | 4177 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4178 | } |
c2f5bfd6 KH |
4179 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
4180 | return Qnil; | |
d0ab1ebe KH |
4181 | done: |
4182 | if (! NILP (fold_wildcards)) | |
4183 | { | |
4184 | char *p0 = name, *p1; | |
4185 | ||
4186 | while ((p1 = strstr (p0, "-*-*"))) | |
4187 | { | |
4188 | strcpy (p1, p1 + 2); | |
4189 | p0 = p1; | |
4190 | } | |
4191 | } | |
4192 | ||
c2f5bfd6 KH |
4193 | return build_string (name); |
4194 | } | |
4195 | ||
4196 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
4197 | doc: /* Clear font cache. */) | |
5842a27b | 4198 | (void) |
c2f5bfd6 KH |
4199 | { |
4200 | Lisp_Object list, frame; | |
4201 | ||
4202 | FOR_EACH_FRAME (list, frame) | |
4203 | { | |
4204 | FRAME_PTR f = XFRAME (frame); | |
4205 | struct font_driver_list *driver_list = f->font_driver_list; | |
4206 | ||
4207 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
4208 | if (driver_list->on) |
4209 | { | |
ca4da08a | 4210 | Lisp_Object cache = driver_list->driver->get_cache (f); |
7a6f7fea | 4211 | Lisp_Object val, tmp; |
51c01100 | 4212 | |
ca4da08a | 4213 | val = XCDR (cache); |
43c0454d KH |
4214 | while (! NILP (val) |
4215 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 4216 | val = XCDR (val); |
d0ab1ebe | 4217 | font_assert (! NILP (val)); |
7a6f7fea AS |
4218 | tmp = XCDR (XCAR (val)); |
4219 | if (XINT (XCAR (tmp)) == 0) | |
417a1b10 | 4220 | { |
ca4da08a KH |
4221 | font_clear_cache (f, XCAR (val), driver_list->driver); |
4222 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 4223 | } |
417a1b10 | 4224 | } |
c2f5bfd6 KH |
4225 | } |
4226 | ||
4227 | return Qnil; | |
4228 | } | |
4229 | ||
071132a9 KH |
4230 | \f |
4231 | void | |
971de7fb | 4232 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4233 | { |
071132a9 | 4234 | struct font *font = XFONT_OBJECT (font_object); |
f62ab7c5 EZ |
4235 | unsigned code; |
4236 | /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */ | |
4237 | EMACS_INT ecode = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); | |
071132a9 | 4238 | struct font_metrics metrics; |
c2f5bfd6 | 4239 | |
f62ab7c5 EZ |
4240 | LGLYPH_SET_CODE (glyph, ecode); |
4241 | code = ecode; | |
071132a9 KH |
4242 | font->driver->text_extents (font, &code, 1, &metrics); |
4243 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4244 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4245 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4246 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4247 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4248 | } |
4249 | ||
c2f5bfd6 | 4250 | |
071132a9 KH |
4251 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4252 | doc: /* Shape the glyph-string GSTRING. | |
4253 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4254 | to get the correct visual image of character sequences set in the | |
4255 | header of the glyph-string. | |
1701724c | 4256 | |
071132a9 KH |
4257 | If the shaping was successful, the value is GSTRING itself or a newly |
4258 | created glyph-string. Otherwise, the value is nil. */) | |
5842a27b | 4259 | (Lisp_Object gstring) |
1701724c KH |
4260 | { |
4261 | struct font *font; | |
071132a9 | 4262 | Lisp_Object font_object, n, glyph; |
ebc96716 | 4263 | EMACS_INT i, j, from, to; |
ba3de0e8 | 4264 | |
071132a9 KH |
4265 | if (! composition_gstring_p (gstring)) |
4266 | signal_error ("Invalid glyph-string: ", gstring); | |
4267 | if (! NILP (LGSTRING_ID (gstring))) | |
4268 | return gstring; | |
4269 | font_object = LGSTRING_FONT (gstring); | |
4270 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4271 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4272 | if (! font->driver->shape) |
4273 | return Qnil; | |
4274 | ||
40fb53d6 KH |
4275 | /* Try at most three times with larger gstring each time. */ |
4276 | for (i = 0; i < 3; i++) | |
4277 | { | |
40fb53d6 KH |
4278 | n = font->driver->shape (gstring); |
4279 | if (INTEGERP (n)) | |
4280 | break; | |
071132a9 KH |
4281 | gstring = larger_vector (gstring, |
4282 | ASIZE (gstring) + LGSTRING_GLYPH_LEN (gstring), | |
4283 | Qnil); | |
40fb53d6 | 4284 | } |
071132a9 | 4285 | if (i == 3 || XINT (n) == 0) |
1701724c | 4286 | return Qnil; |
dfe3c90f KH |
4287 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4288 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4289 | |
071132a9 | 4290 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4291 | from = LGLYPH_FROM (glyph); |
4292 | to = LGLYPH_TO (glyph); | |
4293 | for (i = 1, j = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 KH |
4294 | { |
4295 | Lisp_Object this = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 4296 | |
071132a9 KH |
4297 | if (NILP (this)) |
4298 | break; | |
4299 | if (NILP (LGLYPH_ADJUSTMENT (this))) | |
fc3a285e KH |
4300 | { |
4301 | if (j < i - 1) | |
4302 | for (; j < i; j++) | |
4303 | { | |
4304 | glyph = LGSTRING_GLYPH (gstring, j); | |
4305 | LGLYPH_SET_FROM (glyph, from); | |
4306 | LGLYPH_SET_TO (glyph, to); | |
4307 | } | |
4308 | from = LGLYPH_FROM (this); | |
4309 | to = LGLYPH_TO (this); | |
4310 | j = i; | |
4311 | } | |
071132a9 | 4312 | else |
b2937119 | 4313 | { |
fc3a285e KH |
4314 | if (from > LGLYPH_FROM (this)) |
4315 | from = LGLYPH_FROM (this); | |
4316 | if (to < LGLYPH_TO (this)) | |
4317 | to = LGLYPH_TO (this); | |
b2937119 | 4318 | } |
10d16101 | 4319 | } |
fc3a285e KH |
4320 | if (j < i - 1) |
4321 | for (; j < i; j++) | |
4322 | { | |
4323 | glyph = LGSTRING_GLYPH (gstring, j); | |
4324 | LGLYPH_SET_FROM (glyph, from); | |
4325 | LGLYPH_SET_TO (glyph, to); | |
4326 | } | |
071132a9 | 4327 | return composition_gstring_put_cache (gstring, XINT (n)); |
c2f5bfd6 KH |
4328 | } |
4329 | ||
78a2f9cd KH |
4330 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4331 | 2, 2, 0, | |
4332 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4333 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4334 | where | |
c0943d3d | 4335 | VARIATION-SELECTOR is a character code of variation selection |
78a2f9cd KH |
4336 | (#xFE00..#xFE0F or #xE0100..#xE01EF) |
4337 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4338 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4339 | { |
4340 | unsigned variations[256]; | |
4341 | struct font *font; | |
4342 | int i, n; | |
4343 | Lisp_Object val; | |
4344 | ||
4345 | CHECK_FONT_OBJECT (font_object); | |
4346 | CHECK_CHARACTER (character); | |
4347 | font = XFONT_OBJECT (font_object); | |
4348 | if (! font->driver->get_variation_glyphs) | |
4349 | return Qnil; | |
4350 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4351 | if (! n) | |
4352 | return Qnil; | |
4353 | val = Qnil; | |
4354 | for (i = 0; i < 255; i++) | |
4355 | if (variations[i]) | |
4356 | { | |
78a2f9cd | 4357 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); |
be44ca6c | 4358 | Lisp_Object code = INTEGER_TO_CONS (variations[i]); |
78a2f9cd KH |
4359 | val = Fcons (Fcons (make_number (vs), code), val); |
4360 | } | |
4361 | return val; | |
4362 | } | |
4363 | ||
6a3dadd2 KH |
4364 | #if 0 |
4365 | ||
a7ca3326 | 4366 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
733fd013 | 4367 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. |
51c01100 | 4368 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4369 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4370 | where |
4371 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4372 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4373 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4374 | |
4375 | If LANGYS is nil, the default langsys is selected. | |
4376 | ||
51c01100 JB |
4377 | The features are applied in the order they appear in the list. The |
4378 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4379 | list, and the remaining features are ignored. For instance, (vatu |
4380 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4381 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4382 | |
4383 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4384 | the glyph-string GSTRING-IN. |
e80e09b4 | 4385 | |
51c01100 | 4386 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4387 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4388 | this case, the value is the number of produced glyphs. | |
4389 | ||
4390 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4391 | the value is 0. | |
4392 | ||
51c01100 | 4393 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4394 | produced in GSTRING-OUT, and the value is nil. |
4395 | ||
56dd2d86 | 4396 | See the documentation of `composition-get-gstring' for the format of |
e80e09b4 | 4397 | glyph-string. */) |
5842a27b | 4398 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4399 | { |
4400 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4401 | Lisp_Object val; |
4402 | struct font *font; | |
e80e09b4 KH |
4403 | int len, num; |
4404 | ||
733fd013 | 4405 | check_otf_features (otf_features); |
35027d0c KH |
4406 | CHECK_FONT_OBJECT (font_object); |
4407 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4408 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4409 | error ("Font backend %s can't drive OpenType GSUB table", |
4410 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4411 | CHECK_CONS (otf_features); |
4412 | CHECK_SYMBOL (XCAR (otf_features)); | |
4413 | val = XCDR (otf_features); | |
4414 | CHECK_SYMBOL (XCAR (val)); | |
4415 | val = XCDR (otf_features); | |
4416 | if (! NILP (val)) | |
4417 | CHECK_CONS (val); | |
e80e09b4 KH |
4418 | len = check_gstring (gstring_in); |
4419 | CHECK_VECTOR (gstring_out); | |
4420 | CHECK_NATNUM (from); | |
4421 | CHECK_NATNUM (to); | |
4422 | CHECK_NATNUM (index); | |
4423 | ||
4424 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4425 | args_out_of_range_3 (from, to, make_number (len)); | |
4426 | if (XINT (index) >= ASIZE (gstring_out)) | |
4427 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4428 | num = font->driver->otf_drive (font, otf_features, |
4429 | gstring_in, XINT (from), XINT (to), | |
4430 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4431 | if (num < 0) |
4432 | return Qnil; | |
4433 | return make_number (num); | |
4434 | } | |
4435 | ||
a7ca3326 | 4436 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
e80e09b4 KH |
4437 | 3, 3, 0, |
4438 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4439 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4440 | in this format: |
4441 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4442 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4443 | |
4444 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4445 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4446 | character code corresponding to the glyph or nil if there's no | |
4447 | corresponding character. */) | |
5842a27b | 4448 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4449 | { |
4450 | struct font *font; | |
4451 | Lisp_Object gstring_in, gstring_out, g; | |
4452 | Lisp_Object alternates; | |
4453 | int i, num; | |
4454 | ||
4455 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4456 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4457 | error ("Font backend %s can't drive OpenType GSUB table", |
4458 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4459 | CHECK_CHARACTER (character); |
733fd013 | 4460 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4461 | |
4462 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4463 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4464 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4465 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4466 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4467 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4468 | gstring_out = Ffont_make_gstring (font_object, |
4469 | make_number (ASIZE (gstring_out) * 2)); | |
4470 | alternates = Qnil; | |
4471 | for (i = 0; i < num; i++) | |
4472 | { | |
4473 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4474 | int c = LGLYPH_CHAR (g); |
4475 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4476 | |
4477 | alternates = Fcons (Fcons (make_number (code), | |
4478 | c > 0 ? make_number (c) : Qnil), | |
4479 | alternates); | |
4480 | } | |
4481 | return Fnreverse (alternates); | |
4482 | } | |
6a3dadd2 | 4483 | #endif /* 0 */ |
c2f5bfd6 KH |
4484 | |
4485 | #ifdef FONT_DEBUG | |
4486 | ||
4487 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4488 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4489 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 KH |
4490 | { |
4491 | int isize; | |
4492 | ||
4493 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4494 | if (NILP (frame)) |
4495 | frame = selected_frame; | |
4496 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4497 | |
35027d0c KH |
4498 | if (NILP (size)) |
4499 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4500 | else | |
4501 | { | |
4502 | CHECK_NUMBER_OR_FLOAT (size); | |
4503 | if (FLOATP (size)) | |
d03b5cdb | 4504 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), XFRAME (frame)->resy); |
35027d0c KH |
4505 | else |
4506 | isize = XINT (size); | |
4507 | if (isize == 0) | |
4508 | isize = 120; | |
4509 | } | |
c2f5bfd6 KH |
4510 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4511 | } | |
4512 | ||
4513 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4514 | doc: /* Close FONT-OBJECT. */) | |
5842a27b | 4515 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4516 | { |
4517 | CHECK_FONT_OBJECT (font_object); | |
4518 | if (NILP (frame)) | |
4519 | frame = selected_frame; | |
4520 | CHECK_LIVE_FRAME (frame); | |
4521 | font_close_object (XFRAME (frame), font_object); | |
4522 | return Qnil; | |
4523 | } | |
4524 | ||
4525 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4526 | doc: /* Return information about FONT-OBJECT. |
4527 | The value is a vector: | |
4528 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4529 | CAPABILITY ] |
e80e09b4 | 4530 | |
56dd2d86 | 4531 | NAME is the font name, a string (or nil if the font backend doesn't |
e80e09b4 KH |
4532 | provide a name). |
4533 | ||
56dd2d86 | 4534 | FILENAME is the font file name, a string (or nil if the font backend |
e80e09b4 KH |
4535 | doesn't provide a file name). |
4536 | ||
4537 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4538 | ||
027a33c0 | 4539 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4540 | |
4541 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4542 | pixels. |
e80e09b4 | 4543 | |
e0708580 KH |
4544 | CAPABILITY is a list whose first element is a symbol representing the |
4545 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4546 | remaining elements describe the details of the font capability. |
e0708580 KH |
4547 | |
4548 | If the font is OpenType font, the form of the list is | |
4549 | \(opentype GSUB GPOS) | |
4550 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4551 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4552 | lists of the format: | |
4553 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4554 | ||
4555 | If the font is not OpenType font, currently the length of the form is | |
4556 | one. | |
e80e09b4 KH |
4557 | |
4558 | SCRIPT is a symbol representing OpenType script tag. | |
4559 | ||
4560 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4561 | representing the default langsys. | |
4562 | ||
51c01100 | 4563 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4564 | |
51c01100 | 4565 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4566 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4567 | { |
4568 | struct font *font; | |
4569 | Lisp_Object val; | |
4570 | ||
4571 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4572 | ||
4573 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4574 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4575 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4576 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4577 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4578 | ASET (val, 4, make_number (font->ascent)); |
4579 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4580 | ASET (val, 6, make_number (font->space_width)); |
4581 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4582 | if (font->driver->otf_capability) |
e0708580 | 4583 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4584 | return val; |
4585 | } | |
4586 | ||
a7840ffb KH |
4587 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4588 | doc: | |
4589 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4590 | FROM and TO are positions (integers or markers) specifying a region | |
4591 | of the current buffer. | |
4592 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4593 | vector containing the target characters. | |
4594 | ||
4595 | Each element is a vector containing information of a glyph in this format: | |
4596 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4597 | where | |
4598 | FROM is an index numbers of a character the glyph corresponds to. | |
4599 | TO is the same as FROM. | |
4600 | C is the character of the glyph. | |
4601 | CODE is the glyph-code of C in FONT-OBJECT. | |
4602 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4603 | ADJUSTMENT is always nil. | |
4604 | If FONT-OBJECT doesn't have a glyph for a character, | |
4605 | the corresponding element is nil. */) | |
e1ffae3b KH |
4606 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4607 | Lisp_Object object) | |
c2f5bfd6 KH |
4608 | { |
4609 | struct font *font; | |
13a547c6 | 4610 | int i, len; |
a7840ffb KH |
4611 | Lisp_Object *chars, vec; |
4612 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4613 | |
4614 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4615 | if (NILP (object)) |
4616 | { | |
4617 | EMACS_INT charpos, bytepos; | |
4618 | ||
4619 | validate_region (&from, &to); | |
4620 | if (EQ (from, to)) | |
4621 | return Qnil; | |
4622 | len = XFASTINT (to) - XFASTINT (from); | |
4623 | SAFE_ALLOCA_LISP (chars, len); | |
4624 | charpos = XFASTINT (from); | |
4625 | bytepos = CHAR_TO_BYTE (charpos); | |
4626 | for (i = 0; charpos < XFASTINT (to); i++) | |
4627 | { | |
13a547c6 | 4628 | int c; |
a7840ffb KH |
4629 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); |
4630 | chars[i] = make_number (c); | |
4631 | } | |
4632 | } | |
4633 | else if (STRINGP (object)) | |
4634 | { | |
4635 | const unsigned char *p; | |
4636 | ||
4637 | CHECK_NUMBER (from); | |
4638 | CHECK_NUMBER (to); | |
4639 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4640 | || XINT (to) > SCHARS (object)) | |
4641 | args_out_of_range_3 (object, from, to); | |
4642 | if (EQ (from, to)) | |
4643 | return Qnil; | |
4644 | len = XFASTINT (to) - XFASTINT (from); | |
4645 | SAFE_ALLOCA_LISP (chars, len); | |
4646 | p = SDATA (object); | |
4647 | if (STRING_MULTIBYTE (object)) | |
4648 | for (i = 0; i < len; i++) | |
4649 | { | |
13a547c6 | 4650 | int c = STRING_CHAR_ADVANCE (p); |
a7840ffb KH |
4651 | chars[i] = make_number (c); |
4652 | } | |
4653 | else | |
4654 | for (i = 0; i < len; i++) | |
4655 | chars[i] = make_number (p[i]); | |
4656 | } | |
4657 | else | |
4658 | { | |
4659 | CHECK_VECTOR (object); | |
4660 | CHECK_NUMBER (from); | |
4661 | CHECK_NUMBER (to); | |
4662 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4663 | || XINT (to) > ASIZE (object)) | |
4664 | args_out_of_range_3 (object, from, to); | |
4665 | if (EQ (from, to)) | |
4666 | return Qnil; | |
4667 | len = XFASTINT (to) - XFASTINT (from); | |
4668 | for (i = 0; i < len; i++) | |
4669 | { | |
4670 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4671 | CHECK_CHARACTER (elt); | |
4672 | } | |
4673 | chars = &(AREF (object, XFASTINT (from))); | |
4674 | } | |
4675 | ||
c2f5bfd6 KH |
4676 | vec = Fmake_vector (make_number (len), Qnil); |
4677 | for (i = 0; i < len; i++) | |
4678 | { | |
a7840ffb KH |
4679 | Lisp_Object g; |
4680 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 KH |
4681 | unsigned code; |
4682 | struct font_metrics metrics; | |
4683 | ||
78834453 | 4684 | code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4685 | if (code == FONT_INVALID_CODE) |
4686 | continue; | |
a7840ffb KH |
4687 | g = Fmake_vector (make_number (LGLYPH_SIZE), Qnil); |
4688 | LGLYPH_SET_FROM (g, i); | |
4689 | LGLYPH_SET_TO (g, i); | |
4690 | LGLYPH_SET_CHAR (g, c); | |
4691 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4692 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4693 | LGLYPH_SET_WIDTH (g, metrics.width); |
4694 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4695 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4696 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4697 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4698 | ASET (vec, i, g); | |
4699 | } | |
4700 | if (! VECTORP (object)) | |
4701 | SAFE_FREE (); | |
c2f5bfd6 KH |
4702 | return vec; |
4703 | } | |
4704 | ||
ec6fe57c | 4705 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4706 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4707 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4708 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4709 | { |
4710 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4711 | CHECK_FONT (font); |
ec6fe57c KH |
4712 | |
4713 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4714 | } | |
4715 | ||
1701724c | 4716 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4717 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4718 | Optional second arg WINDOW, if non-nil, is a window displaying |
4719 | the current buffer. It defaults to the currently selected window. */) | |
5842a27b | 4720 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 KH |
4721 | { |
4722 | struct window *w; | |
e3ee0340 | 4723 | EMACS_INT pos; |
10d16101 | 4724 | |
1701724c KH |
4725 | if (NILP (string)) |
4726 | { | |
4727 | CHECK_NUMBER_COERCE_MARKER (position); | |
4728 | pos = XINT (position); | |
4729 | if (pos < BEGV || pos >= ZV) | |
4730 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4731 | } |
4732 | else | |
4733 | { | |
1701724c KH |
4734 | CHECK_NUMBER (position); |
4735 | CHECK_STRING (string); | |
4736 | pos = XINT (position); | |
4737 | if (pos < 0 || pos >= SCHARS (string)) | |
4738 | args_out_of_range (string, position); | |
1701724c | 4739 | } |
10d16101 KH |
4740 | if (NILP (window)) |
4741 | window = selected_window; | |
4742 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4743 | w = XWINDOW (window); |
10d16101 | 4744 | |
40fb53d6 | 4745 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4746 | } |
4747 | ||
c2f5bfd6 KH |
4748 | #if 0 |
4749 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4750 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4751 | The value is a number of glyphs drawn. | |
4752 | Type C-l to recover what previously shown. */) | |
5842a27b | 4753 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4754 | { |
4755 | Lisp_Object frame = selected_frame; | |
4756 | FRAME_PTR f = XFRAME (frame); | |
4757 | struct font *font; | |
4758 | struct face *face; | |
4759 | int i, len, width; | |
4760 | unsigned *code; | |
4761 | ||
4762 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4763 | CHECK_STRING (string); | |
4764 | len = SCHARS (string); | |
4765 | code = alloca (sizeof (unsigned) * len); | |
4766 | for (i = 0; i < len; i++) | |
4767 | { | |
4768 | Lisp_Object ch = Faref (string, make_number (i)); | |
4769 | Lisp_Object val; | |
4770 | int c = XINT (ch); | |
4771 | ||
4772 | code[i] = font->driver->encode_char (font, c); | |
4773 | if (code[i] == FONT_INVALID_CODE) | |
4774 | break; | |
4775 | } | |
4776 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4777 | face->fontp = font; | |
4778 | if (font->driver->prepare_face) | |
4779 | font->driver->prepare_face (f, face); | |
4780 | width = font->driver->text_extents (font, code, i, NULL); | |
4781 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4782 | if (font->driver->done_face) | |
4783 | font->driver->done_face (f, face); | |
4784 | face->fontp = NULL; | |
4785 | return make_number (len); | |
4786 | } | |
4787 | #endif | |
4788 | ||
4789 | #endif /* FONT_DEBUG */ | |
4790 | ||
a266686a KH |
4791 | #ifdef HAVE_WINDOW_SYSTEM |
4792 | ||
72606e45 KH |
4793 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4794 | doc: /* Return information about a font named NAME on frame FRAME. | |
4795 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4796 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4797 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4798 | where | |
4799 | OPENED-NAME is the name used for opening the font, | |
4800 | FULL-NAME is the full name of the font, | |
06f19b91 KH |
4801 | SIZE is the pixelsize of the font, |
4802 | HEIGHT is the pixel-height of the font (i.e ascent + descent), | |
72606e45 KH |
4803 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4804 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4805 | how to compose characters. | |
4806 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4807 | (Lisp_Object name, Lisp_Object frame) |
72606e45 KH |
4808 | { |
4809 | FRAME_PTR f; | |
4810 | struct font *font; | |
4811 | Lisp_Object info; | |
4812 | Lisp_Object font_object; | |
4813 | ||
4814 | (*check_window_system_func) (); | |
4815 | ||
4816 | if (! FONTP (name)) | |
4817 | CHECK_STRING (name); | |
4818 | if (NILP (frame)) | |
4819 | frame = selected_frame; | |
4820 | CHECK_LIVE_FRAME (frame); | |
4821 | f = XFRAME (frame); | |
4822 | ||
4823 | if (STRINGP (name)) | |
4824 | { | |
4825 | int fontset = fs_query_fontset (name, 0); | |
4826 | ||
4827 | if (fontset >= 0) | |
4828 | name = fontset_ascii (fontset); | |
51b59d79 | 4829 | font_object = font_open_by_name (f, SSDATA (name)); |
72606e45 KH |
4830 | } |
4831 | else if (FONT_OBJECT_P (name)) | |
4832 | font_object = name; | |
4833 | else if (FONT_ENTITY_P (name)) | |
4834 | font_object = font_open_entity (f, name, 0); | |
4835 | else | |
4836 | { | |
4837 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4838 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4839 | ||
4840 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4841 | } | |
4842 | if (NILP (font_object)) | |
4843 | return Qnil; | |
4844 | font = XFONT_OBJECT (font_object); | |
4845 | ||
4846 | info = Fmake_vector (make_number (7), Qnil); | |
4847 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
06f19b91 | 4848 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_FULLNAME_INDEX); |
72606e45 KH |
4849 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); |
4850 | XVECTOR (info)->contents[3] = make_number (font->height); | |
4851 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
4852 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
4853 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
4854 | ||
4855 | #if 0 | |
4856 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4857 | close it now. Perhaps, we should manage font-objects | |
4858 | by `reference-count'. */ | |
4859 | font_close_object (f, font_object); | |
4860 | #endif | |
4861 | return info; | |
4862 | } | |
a266686a | 4863 | #endif |
72606e45 | 4864 | |
c2f5bfd6 | 4865 | \f |
d0ab1ebe KH |
4866 | #define BUILD_STYLE_TABLE(TBL) \ |
4867 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4868 | ||
4869 | static Lisp_Object | |
971de7fb | 4870 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
4871 | { |
4872 | int i, j; | |
4873 | Lisp_Object table, elt; | |
17ab8f5d | 4874 | |
d0ab1ebe KH |
4875 | table = Fmake_vector (make_number (nelement), Qnil); |
4876 | for (i = 0; i < nelement; i++) | |
4877 | { | |
4878 | for (j = 0; entry[i].names[j]; j++); | |
4879 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4880 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4881 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 4882 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
4883 | ASET (table, i, elt); |
4884 | } | |
4885 | return table; | |
4886 | } | |
4887 | ||
d0818984 KH |
4888 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4889 | If ACTION is not nil, that is added to the log when font_add_log is | |
4890 | called next time. At that time, ACTION is set back to nil. */ | |
4891 | static Lisp_Object Vfont_log_deferred; | |
4892 | ||
4893 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4894 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4895 | opening), ARG is the argument for the action, and RESULT is the | |
4896 | result of the action. */ | |
d0ab1ebe | 4897 | void |
675e2c69 | 4898 | font_add_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe | 4899 | { |
13a547c6 | 4900 | Lisp_Object val; |
d0ab1ebe KH |
4901 | int i; |
4902 | ||
d0ab1ebe KH |
4903 | if (EQ (Vfont_log, Qt)) |
4904 | return; | |
d0818984 KH |
4905 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4906 | { | |
51b59d79 | 4907 | char *str = SSDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4908 | |
4909 | ASET (Vfont_log_deferred, 0, Qnil); | |
4910 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
4911 | AREF (Vfont_log_deferred, 2)); | |
4912 | } | |
4913 | ||
d0ab1ebe | 4914 | if (FONTP (arg)) |
db716644 KH |
4915 | { |
4916 | Lisp_Object tail, elt; | |
4917 | Lisp_Object equalstr = build_string ("="); | |
4918 | ||
4919 | val = Ffont_xlfd_name (arg, Qt); | |
4920 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
4921 | tail = XCDR (tail)) | |
4922 | { | |
4923 | elt = XCAR (tail); | |
49f9c344 KH |
4924 | if (EQ (XCAR (elt), QCscript) |
4925 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4926 | val = concat3 (val, SYMBOL_NAME (QCscript), |
4927 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4928 | else if (EQ (XCAR (elt), QClang) |
4929 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4930 | val = concat3 (val, SYMBOL_NAME (QClang), |
4931 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4932 | else if (EQ (XCAR (elt), QCotf) |
4933 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
4934 | val = concat3 (val, SYMBOL_NAME (QCotf), |
4935 | concat2 (equalstr, | |
4936 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
4937 | } | |
4938 | arg = val; | |
4939 | } | |
72d36834 KH |
4940 | |
4941 | if (CONSP (result) | |
4942 | && VECTORP (XCAR (result)) | |
4943 | && ASIZE (XCAR (result)) > 0 | |
4944 | && FONTP (AREF (XCAR (result), 0))) | |
4945 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 4946 | if (FONTP (result)) |
d26424c5 KH |
4947 | { |
4948 | val = Ffont_xlfd_name (result, Qt); | |
4949 | if (! FONT_SPEC_P (result)) | |
4950 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
4951 | build_string (":"), val); | |
4952 | result = val; | |
4953 | } | |
d0ab1ebe KH |
4954 | else if (CONSP (result)) |
4955 | { | |
13a547c6 | 4956 | Lisp_Object tail; |
d0ab1ebe KH |
4957 | result = Fcopy_sequence (result); |
4958 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
4959 | { | |
4960 | val = XCAR (tail); | |
4961 | if (FONTP (val)) | |
4962 | val = Ffont_xlfd_name (val, Qt); | |
4963 | XSETCAR (tail, val); | |
4964 | } | |
4965 | } | |
4966 | else if (VECTORP (result)) | |
4967 | { | |
4968 | result = Fcopy_sequence (result); | |
4969 | for (i = 0; i < ASIZE (result); i++) | |
4970 | { | |
4971 | val = AREF (result, i); | |
4972 | if (FONTP (val)) | |
4973 | val = Ffont_xlfd_name (val, Qt); | |
4974 | ASET (result, i, val); | |
4975 | } | |
4976 | } | |
4977 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
4978 | } | |
4979 | ||
d0818984 KH |
4980 | /* Record a font-related logging data to be added to Vfont_log when |
4981 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
4982 | as font_add_log. */ | |
4983 | ||
4984 | void | |
675e2c69 | 4985 | font_deferred_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 4986 | { |
652b9560 KH |
4987 | if (EQ (Vfont_log, Qt)) |
4988 | return; | |
d0818984 KH |
4989 | ASET (Vfont_log_deferred, 0, build_string (action)); |
4990 | ASET (Vfont_log_deferred, 1, arg); | |
4991 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 4992 | } |
d0818984 | 4993 | |
c2f5bfd6 | 4994 | void |
971de7fb | 4995 | syms_of_font (void) |
c2f5bfd6 | 4996 | { |
4007dd1c KH |
4997 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
4998 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
4999 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5000 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5001 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5002 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5003 | |
1701724c KH |
5004 | staticpro (&font_charset_alist); |
5005 | font_charset_alist = Qnil; | |
5006 | ||
e0708580 | 5007 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5008 | |
9e1bb909 | 5009 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5010 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5011 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5012 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5013 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5014 | |
071132a9 KH |
5015 | DEFSYM (QCf, "Cf"); |
5016 | ||
c2f5bfd6 | 5017 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5018 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5019 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5020 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5021 | |
5022 | DEFSYM (QCfoundry, ":foundry"); | |
5023 | DEFSYM (QCadstyle, ":adstyle"); | |
5024 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5025 | DEFSYM (QCspacing, ":spacing"); |
5026 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5027 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5028 | DEFSYM (QCavgwidth, ":avgwidth"); |
5029 | DEFSYM (QCfont_entity, ":font-entity"); | |
5030 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5031 | |
ec6fe57c KH |
5032 | DEFSYM (Qc, "c"); |
5033 | DEFSYM (Qm, "m"); | |
5034 | DEFSYM (Qp, "p"); | |
5035 | DEFSYM (Qd, "d"); | |
5036 | ||
cf702558 CY |
5037 | DEFSYM (Qja, "ja"); |
5038 | DEFSYM (Qko, "ko"); | |
5039 | ||
42707278 JD |
5040 | DEFSYM (QCuser_spec, "user-spec"); |
5041 | ||
c2f5bfd6 KH |
5042 | staticpro (&null_vector); |
5043 | null_vector = Fmake_vector (make_number (0), Qnil); | |
5044 | ||
5045 | staticpro (&scratch_font_spec); | |
5046 | scratch_font_spec = Ffont_spec (0, NULL); | |
5047 | staticpro (&scratch_font_prefer); | |
5048 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5049 | ||
d0818984 KH |
5050 | staticpro (&Vfont_log_deferred); |
5051 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5052 | ||
6a3dadd2 | 5053 | #if 0 |
733fd013 KH |
5054 | #ifdef HAVE_LIBOTF |
5055 | staticpro (&otf_list); | |
5056 | otf_list = Qnil; | |
6a3dadd2 KH |
5057 | #endif /* HAVE_LIBOTF */ |
5058 | #endif /* 0 */ | |
733fd013 | 5059 | |
c2f5bfd6 KH |
5060 | defsubr (&Sfontp); |
5061 | defsubr (&Sfont_spec); | |
5062 | defsubr (&Sfont_get); | |
51cf11be | 5063 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5064 | defsubr (&Sfont_face_attributes); |
51cf11be | 5065 | #endif |
c2f5bfd6 KH |
5066 | defsubr (&Sfont_put); |
5067 | defsubr (&Slist_fonts); | |
35027d0c | 5068 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5069 | defsubr (&Sfind_font); |
5070 | defsubr (&Sfont_xlfd_name); | |
5071 | defsubr (&Sclear_font_cache); | |
071132a9 | 5072 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5073 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5074 | #if 0 |
733fd013 | 5075 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5076 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5077 | #endif /* 0 */ |
c2f5bfd6 KH |
5078 | |
5079 | #ifdef FONT_DEBUG | |
5080 | defsubr (&Sopen_font); | |
5081 | defsubr (&Sclose_font); | |
5082 | defsubr (&Squery_font); | |
a7840ffb | 5083 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5084 | defsubr (&Sfont_match_p); |
10d16101 | 5085 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5086 | #if 0 |
5087 | defsubr (&Sdraw_string); | |
5088 | #endif | |
5089 | #endif /* FONT_DEBUG */ | |
a266686a | 5090 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5091 | defsubr (&Sfont_info); |
a266686a | 5092 | #endif |
c2f5bfd6 | 5093 | |
29208e82 | 5094 | DEFVAR_LISP ("font-encoding-alist", Vfont_encoding_alist, |
819e81df KH |
5095 | doc: /* |
5096 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5097 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5098 | where ENCODING is a charset or a char-table, | |
5099 | and REPERTORY is a charset, a char-table, or nil. | |
5100 | ||
027a33c0 | 5101 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5102 | \(REGEXP . ENCODING). |
5103 | ||
5104 | ENCODING is for converting a character to a glyph code of the font. | |
5105 | If ENCODING is a charset, encoding a character by the charset gives | |
5106 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5107 | the table by a character gives the corresponding glyph code. | |
5108 | ||
5109 | REPERTORY specifies a repertory of characters supported by the font. | |
5110 | If REPERTORY is a charset, all characters beloging to the charset are | |
5111 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 5112 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5113 | gets the repertory information by an opened font and ENCODING. */); |
5114 | Vfont_encoding_alist = Qnil; | |
5115 | ||
933ac235 SM |
5116 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5117 | won't have any effect other than disconnect them from the style | |
5118 | table used by the font display code. So we make them read-only, | |
5119 | to avoid this confusing situation. */ | |
5120 | ||
29208e82 | 5121 | DEFVAR_LISP_NOPRO ("font-weight-table", Vfont_weight_table, |
d0ab1ebe KH |
5122 | doc: /* Vector of valid font weight values. |
5123 | Each element has the form: | |
5124 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5125 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5126 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5127 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe | 5128 | |
29208e82 | 5129 | DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table, |
d0ab1ebe | 5130 | doc: /* Vector of font slant symbols vs the corresponding numeric values. |
17ab8f5d | 5131 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5132 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5133 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe | 5134 | |
29208e82 | 5135 | DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table, |
d0ab1ebe | 5136 | doc: /* Alist of font width symbols vs the corresponding numeric values. |
17ab8f5d | 5137 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5138 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5139 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5140 | |
5141 | staticpro (&font_style_table); | |
5142 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
5143 | ASET (font_style_table, 0, Vfont_weight_table); | |
5144 | ASET (font_style_table, 1, Vfont_slant_table); | |
5145 | ASET (font_style_table, 2, Vfont_width_table); | |
5146 | ||
29208e82 | 5147 | DEFVAR_LISP ("font-log", Vfont_log, doc: /* |
d0ab1ebe KH |
5148 | *Logging list of font related actions and results. |
5149 | The value t means to suppress the logging. | |
5150 | The initial value is set to nil if the environment variable | |
5151 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5152 | Vfont_log = Qnil; | |
5153 | ||
819e81df | 5154 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5155 | #ifdef HAVE_FREETYPE |
35027d0c | 5156 | syms_of_ftfont (); |
c2f5bfd6 | 5157 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5158 | syms_of_xfont (); |
5159 | syms_of_ftxfont (); | |
c2f5bfd6 | 5160 | #ifdef HAVE_XFT |
35027d0c | 5161 | syms_of_xftfont (); |
c2f5bfd6 KH |
5162 | #endif /* HAVE_XFT */ |
5163 | #endif /* HAVE_X_WINDOWS */ | |
5164 | #else /* not HAVE_FREETYPE */ | |
5165 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5166 | syms_of_xfont (); |
c2f5bfd6 KH |
5167 | #endif /* HAVE_X_WINDOWS */ |
5168 | #endif /* not HAVE_FREETYPE */ | |
5169 | #ifdef HAVE_BDFFONT | |
35027d0c | 5170 | syms_of_bdffont (); |
c2f5bfd6 KH |
5171 | #endif /* HAVE_BDFFONT */ |
5172 | #ifdef WINDOWSNT | |
35027d0c | 5173 | syms_of_w32font (); |
c2f5bfd6 | 5174 | #endif /* WINDOWSNT */ |
edfda783 AR |
5175 | #ifdef HAVE_NS |
5176 | syms_of_nsfont (); | |
5177 | #endif /* HAVE_NS */ | |
819e81df | 5178 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5179 | } |
885b7d09 | 5180 | |
652b9560 | 5181 | void |
971de7fb | 5182 | init_font (void) |
652b9560 KH |
5183 | { |
5184 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5185 | } |