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 | ||
fe3c5669 | 165 | /* Creators of font-related Lisp object. */ |
35027d0c | 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; | |
09e80d9f | 805 | /* Maximum possible field. */ |
4485a28e KH |
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 | 1287 | f[XLFD_AVGWIDTH_INDEX] = "*"; |
8666506e PE |
1288 | len = snprintf (name, nbytes, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
1289 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], | |
1290 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
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]); | |
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++) |
5e617bc2 | 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 | 1594 | lim = name + nbytes; |
b1868a1a | 1595 | if (! NILP (family)) |
8666506e PE |
1596 | { |
1597 | int len = snprintf (p, lim - p, "%s", SSDATA (family)); | |
1598 | if (! (0 <= len && len < lim - p)) | |
1599 | return -1; | |
1600 | p += len; | |
1601 | } | |
ec6fe57c | 1602 | if (point_size > 0) |
8666506e PE |
1603 | { |
1604 | int len = snprintf (p, lim - p, "-%d" + (p == name), point_size); | |
1605 | if (! (0 <= len && len < lim - p)) | |
1606 | return -1; | |
1607 | p += len; | |
1608 | } | |
ef18374f | 1609 | else if (pixel_size > 0) |
8666506e PE |
1610 | { |
1611 | int len = snprintf (p, lim - p, ":pixelsize=%d", pixel_size); | |
1612 | if (! (0 <= len && len < lim - p)) | |
1613 | return -1; | |
1614 | p += len; | |
1615 | } | |
35027d0c | 1616 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
8666506e PE |
1617 | { |
1618 | int len = snprintf (p, lim - p, ":foundry=%s", | |
1619 | SSDATA (SYMBOL_NAME (AREF (font, | |
1620 | FONT_FOUNDRY_INDEX)))); | |
1621 | if (! (0 <= len && len < lim - p)) | |
1622 | return -1; | |
1623 | p += len; | |
1624 | } | |
a9262bb8 | 1625 | for (i = 0; i < 3; i++) |
35027d0c | 1626 | if (! NILP (styles[i])) |
8666506e PE |
1627 | { |
1628 | int len = snprintf (p, lim - p, ":%s=%s", style_names[i], | |
1629 | SSDATA (SYMBOL_NAME (styles[i]))); | |
1630 | if (! (0 <= len && len < lim - p)) | |
1631 | return -1; | |
1632 | p += len; | |
1633 | } | |
1634 | ||
35027d0c | 1635 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
8666506e PE |
1636 | { |
1637 | int len = snprintf (p, lim - p, ":dpi=%"pI"d", | |
1638 | XINT (AREF (font, FONT_DPI_INDEX))); | |
1639 | if (! (0 <= len && len < lim - p)) | |
1640 | return -1; | |
1641 | p += len; | |
1642 | } | |
1643 | ||
35027d0c | 1644 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
8666506e PE |
1645 | { |
1646 | int len = snprintf (p, lim - p, ":spacing=%"pI"d", | |
1647 | XINT (AREF (font, FONT_SPACING_INDEX))); | |
1648 | if (! (0 <= len && len < lim - p)) | |
1649 | return -1; | |
1650 | p += len; | |
1651 | } | |
1652 | ||
35027d0c | 1653 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
8666506e PE |
1654 | { |
1655 | int len = snprintf (p, lim - p, | |
1656 | (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0 | |
1657 | ? ":scalable=true" | |
1658 | : ":scalable=false")); | |
1659 | if (! (0 <= len && len < lim - p)) | |
1660 | return -1; | |
1661 | p += len; | |
1662 | } | |
1663 | ||
1664 | return (p - name); | |
ef18374f KH |
1665 | } |
1666 | ||
1667 | /* Parse NAME (null terminated) and store information in FONT | |
1668 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1669 | 0. Otherwise return -1. */ |
ef18374f KH |
1670 | |
1671 | static int | |
09d93395 | 1672 | font_parse_name (char *name, Lisp_Object font) |
ef18374f | 1673 | { |
8966b757 | 1674 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
e950d6f1 | 1675 | return font_parse_xlfd (name, font); |
ec6fe57c | 1676 | return font_parse_fcname (name, font); |
ef18374f KH |
1677 | } |
1678 | ||
35027d0c KH |
1679 | |
1680 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1681 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1682 | part. */ | |
45eb10fb | 1683 | |
c2f5bfd6 | 1684 | void |
971de7fb | 1685 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1686 | { |
35027d0c KH |
1687 | int len; |
1688 | char *p0, *p1; | |
1689 | ||
d0ab1ebe KH |
1690 | if (! NILP (family) |
1691 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1692 | { |
35027d0c KH |
1693 | CHECK_STRING (family); |
1694 | len = SBYTES (family); | |
51b59d79 | 1695 | p0 = SSDATA (family); |
8966b757 | 1696 | p1 = strchr (p0, '-'); |
35027d0c | 1697 | if (p1) |
c2f5bfd6 | 1698 | { |
9903d1e6 | 1699 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1700 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1701 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1702 | p1++; |
1703 | len -= p1 - p0; | |
2f286d4f | 1704 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1705 | } |
35027d0c KH |
1706 | else |
1707 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1708 | } |
35027d0c | 1709 | if (! NILP (registry)) |
c2f5bfd6 | 1710 | { |
35027d0c KH |
1711 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1712 | CHECK_STRING (registry); | |
1713 | len = SBYTES (registry); | |
51b59d79 | 1714 | p0 = SSDATA (registry); |
8966b757 | 1715 | p1 = strchr (p0, '-'); |
35027d0c | 1716 | if (! p1) |
c2f5bfd6 | 1717 | { |
35027d0c KH |
1718 | if (SDATA (registry)[len - 1] == '*') |
1719 | registry = concat2 (registry, build_string ("-*")); | |
1720 | else | |
1721 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1722 | } |
35027d0c KH |
1723 | registry = Fdowncase (registry); |
1724 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1725 | } |
1726 | } | |
1727 | ||
45eb10fb | 1728 | \f |
35027d0c KH |
1729 | /* This part (through the next ^L) is still experimental and not |
1730 | tested much. We may drastically change codes. */ | |
10d16101 | 1731 | |
45eb10fb | 1732 | /* OTF handler */ |
10d16101 | 1733 | |
6a3dadd2 KH |
1734 | #if 0 |
1735 | ||
e950d6f1 KH |
1736 | #define LGSTRING_HEADER_SIZE 6 |
1737 | #define LGSTRING_GLYPH_SIZE 8 | |
1738 | ||
1739 | static int | |
1dae0f0a | 1740 | check_gstring (Lisp_Object gstring) |
e950d6f1 KH |
1741 | { |
1742 | Lisp_Object val; | |
1743 | int i, j; | |
1744 | ||
1745 | CHECK_VECTOR (gstring); | |
1746 | val = AREF (gstring, 0); | |
1747 | CHECK_VECTOR (val); | |
1748 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1749 | goto err; | |
1750 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1751 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1752 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1753 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1754 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1755 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1756 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1757 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1758 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1759 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1760 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1761 | |
071132a9 | 1762 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1763 | { |
1764 | val = LGSTRING_GLYPH (gstring, i); | |
1765 | CHECK_VECTOR (val); | |
1766 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1767 | goto err; | |
f9ffa1ea | 1768 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1769 | break; |
f9ffa1ea SM |
1770 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1771 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1772 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1773 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1774 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1775 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1776 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1777 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1778 | { |
f9ffa1ea | 1779 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1780 | CHECK_VECTOR (val); |
1781 | if (ASIZE (val) < 3) | |
1782 | goto err; | |
1783 | for (j = 0; j < 3; j++) | |
1784 | CHECK_NUMBER (AREF (val, j)); | |
1785 | } | |
1786 | } | |
1787 | return i; | |
1788 | err: | |
1789 | error ("Invalid glyph-string format"); | |
1790 | return -1; | |
1791 | } | |
1792 | ||
cf385d93 | 1793 | static void |
1dae0f0a | 1794 | check_otf_features (Lisp_Object otf_features) |
cf385d93 | 1795 | { |
35027d0c | 1796 | Lisp_Object val; |
cf385d93 KH |
1797 | |
1798 | CHECK_CONS (otf_features); | |
1799 | CHECK_SYMBOL (XCAR (otf_features)); | |
1800 | otf_features = XCDR (otf_features); | |
1801 | CHECK_CONS (otf_features); | |
1802 | CHECK_SYMBOL (XCAR (otf_features)); | |
1803 | otf_features = XCDR (otf_features); | |
1804 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1805 | { | |
1806 | CHECK_SYMBOL (Fcar (val)); | |
1807 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
e6c3da20 EZ |
1808 | error ("Invalid OTF GSUB feature: %s", |
1809 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1810 | } |
1811 | otf_features = XCDR (otf_features); | |
1812 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1813 | { | |
1814 | CHECK_SYMBOL (Fcar (val)); | |
1815 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
e6c3da20 EZ |
1816 | error ("Invalid OTF GPOS feature: %s", |
1817 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1818 | } |
1819 | } | |
1820 | ||
c2f5bfd6 KH |
1821 | #ifdef HAVE_LIBOTF |
1822 | #include <otf.h> | |
1823 | ||
733fd013 | 1824 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1825 | |
1826 | static Lisp_Object | |
1dae0f0a | 1827 | otf_tag_symbol (OTF_Tag tag) |
c2f5bfd6 KH |
1828 | { |
1829 | char name[5]; | |
1830 | ||
1831 | OTF_tag_name (tag, name); | |
1832 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1833 | } | |
1834 | ||
1835 | static OTF * | |
1dae0f0a | 1836 | otf_open (Lisp_Object file) |
c2f5bfd6 | 1837 | { |
35027d0c | 1838 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1839 | OTF *otf; |
1840 | ||
1841 | if (! NILP (val)) | |
1842 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1843 | else | |
c2f5bfd6 | 1844 | { |
51b59d79 | 1845 | otf = STRINGP (file) ? OTF_open (SSDATA (file)) : NULL; |
733fd013 | 1846 | val = make_save_value (otf, 0); |
35027d0c | 1847 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1848 | } |
733fd013 | 1849 | return otf; |
c2f5bfd6 KH |
1850 | } |
1851 | ||
1852 | ||
1853 | /* Return a list describing which scripts/languages FONT supports by | |
1854 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1855 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1856 | |
1857 | Lisp_Object | |
1dae0f0a | 1858 | font_otf_capability (struct font *font) |
c2f5bfd6 KH |
1859 | { |
1860 | OTF *otf; | |
1861 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1862 | int i; | |
1863 | ||
35027d0c | 1864 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1865 | if (! otf) |
1866 | return Qnil; | |
1867 | for (i = 0; i < 2; i++) | |
1868 | { | |
1869 | OTF_GSUB_GPOS *gsub_gpos; | |
1870 | Lisp_Object script_list = Qnil; | |
1871 | int j; | |
1872 | ||
1873 | if (OTF_get_features (otf, i == 0) < 0) | |
1874 | continue; | |
1875 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1876 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1877 | { | |
1878 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1879 | Lisp_Object langsys_list = Qnil; | |
1880 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1881 | int k; | |
1882 | ||
1883 | for (k = script->LangSysCount; k >= 0; k--) | |
1884 | { | |
1885 | OTF_LangSys *langsys; | |
1886 | Lisp_Object feature_list = Qnil; | |
1887 | Lisp_Object langsys_tag; | |
1888 | int l; | |
1889 | ||
e80e09b4 | 1890 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1891 | { |
1892 | langsys = &script->DefaultLangSys; | |
1893 | langsys_tag = Qnil; | |
1894 | } | |
1895 | else | |
1896 | { | |
1897 | langsys = script->LangSys + k; | |
1898 | langsys_tag | |
1899 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1900 | } | |
e80e09b4 | 1901 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1902 | { |
1903 | OTF_Feature *feature | |
1904 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1905 | Lisp_Object feature_tag | |
1906 | = otf_tag_symbol (feature->FeatureTag); | |
1907 | ||
1908 | feature_list = Fcons (feature_tag, feature_list); | |
1909 | } | |
1910 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1911 | langsys_list); | |
1912 | } | |
1913 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1914 | script_list); | |
1915 | } | |
1916 | ||
1917 | if (i == 0) | |
1918 | XSETCAR (capability, script_list); | |
1919 | else | |
1920 | XSETCDR (capability, script_list); | |
1921 | } | |
1922 | ||
1923 | return capability; | |
1924 | } | |
1925 | ||
733fd013 KH |
1926 | /* Parse OTF features in SPEC and write a proper features spec string |
1927 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1928 | assured that the sufficient memory has already allocated for | |
1929 | FEATURES. */ | |
1930 | ||
e80e09b4 | 1931 | static void |
1dae0f0a | 1932 | generate_otf_features (Lisp_Object spec, char *features) |
c2f5bfd6 KH |
1933 | { |
1934 | Lisp_Object val; | |
35027d0c | 1935 | char *p; |
c2f5bfd6 KH |
1936 | int asterisk; |
1937 | ||
733fd013 | 1938 | p = features; |
e80e09b4 | 1939 | *p = '\0'; |
c2f5bfd6 KH |
1940 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1941 | { | |
1942 | val = XCAR (spec); | |
e80e09b4 KH |
1943 | CHECK_SYMBOL (val); |
1944 | if (p > features) | |
733fd013 | 1945 | *p++ = ','; |
c2f5bfd6 KH |
1946 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1947 | { | |
1948 | asterisk = 1; | |
e80e09b4 | 1949 | *p++ = '*'; |
c2f5bfd6 KH |
1950 | } |
1951 | else if (! asterisk) | |
e80e09b4 KH |
1952 | { |
1953 | val = SYMBOL_NAME (val); | |
c21721cc | 1954 | p += esprintf (p, "%s", SDATA (val)); |
e80e09b4 | 1955 | } |
c2f5bfd6 | 1956 | else |
e80e09b4 KH |
1957 | { |
1958 | val = SYMBOL_NAME (val); | |
c21721cc | 1959 | p += esprintf (p, "~%s", SDATA (val)); |
e80e09b4 | 1960 | } |
c2f5bfd6 | 1961 | } |
e80e09b4 KH |
1962 | if (CONSP (spec)) |
1963 | error ("OTF spec too long"); | |
1964 | } | |
1965 | ||
733fd013 | 1966 | Lisp_Object |
1dae0f0a | 1967 | font_otf_DeviceTable (OTF_DeviceTable *device_table) |
733fd013 KH |
1968 | { |
1969 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1970 | ||
1971 | return Fcons (make_number (len), | |
1972 | make_unibyte_string (device_table->DeltaValue, len)); | |
1973 | } | |
1974 | ||
1975 | Lisp_Object | |
1dae0f0a | 1976 | font_otf_ValueRecord (int value_format, OTF_ValueRecord *value_record) |
733fd013 KH |
1977 | { |
1978 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1979 | ||
1980 | if (value_format & OTF_XPlacement) | |
43c0454d | 1981 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 1982 | if (value_format & OTF_YPlacement) |
43c0454d | 1983 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 1984 | if (value_format & OTF_XAdvance) |
43c0454d | 1985 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 1986 | if (value_format & OTF_YAdvance) |
43c0454d | 1987 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
1988 | if (value_format & OTF_XPlaDevice) |
1989 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
1990 | if (value_format & OTF_YPlaDevice) | |
1991 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
1992 | if (value_format & OTF_XAdvDevice) | |
1993 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
1994 | if (value_format & OTF_YAdvDevice) | |
1995 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
1996 | return val; | |
1997 | } | |
1998 | ||
1999 | Lisp_Object | |
1dae0f0a | 2000 | font_otf_Anchor (OTF_Anchor *anchor) |
733fd013 KH |
2001 | { |
2002 | Lisp_Object val; | |
2003 | ||
2004 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2005 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2006 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2007 | if (anchor->AnchorFormat == 2) | |
2008 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2009 | else | |
2010 | { | |
2011 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2012 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2013 | } | |
2014 | return val; | |
2015 | } | |
c2f5bfd6 | 2016 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2017 | #endif /* 0 */ |
c2f5bfd6 | 2018 | |
c2f5bfd6 KH |
2019 | \f |
2020 | /* Font sorting */ | |
2021 | ||
f57e2426 J |
2022 | static unsigned font_score (Lisp_Object, Lisp_Object *); |
2023 | static int font_compare (const void *, const void *); | |
2024 | static Lisp_Object font_sort_entities (Lisp_Object, Lisp_Object, | |
2025 | Lisp_Object, int); | |
c2f5bfd6 | 2026 | |
55e41770 | 2027 | static double |
971de7fb | 2028 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
2029 | { |
2030 | Lisp_Object tail, elt; | |
2031 | Lisp_Object name = Qnil; | |
2032 | ||
2033 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2034 | { | |
2035 | elt = XCAR (tail); | |
2036 | if (FLOATP (XCDR (elt))) | |
2037 | { | |
2038 | if (STRINGP (XCAR (elt))) | |
2039 | { | |
2040 | if (NILP (name)) | |
2041 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2042 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2043 | return XFLOAT_DATA (XCDR (elt)); | |
2044 | } | |
2045 | else if (FONT_SPEC_P (XCAR (elt))) | |
2046 | { | |
2047 | if (font_match_p (XCAR (elt), font_entity)) | |
2048 | return XFLOAT_DATA (XCDR (elt)); | |
2049 | } | |
2050 | } | |
2051 | } | |
2052 | return 1.0; | |
2053 | } | |
2054 | ||
c2f5bfd6 KH |
2055 | /* We sort fonts by scoring each of them against a specified |
2056 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2057 | the value is, the closer the font is to the font-spec. | |
2058 | ||
56dd2d86 | 2059 | The lowest 2 bits of the score are used for driver type. The font |
4007dd1c | 2060 | available by the most preferred font driver is 0. |
35027d0c | 2061 | |
56dd2d86 | 2062 | The 4 7-bit fields in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2063 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2064 | ||
2065 | /* How many bits to shift to store the difference value of each font | |
56dd2d86 | 2066 | property in a score. Note that floats for FONT_TYPE_INDEX and |
35027d0c | 2067 | FONT_REGISTRY_INDEX are not used. */ |
c2f5bfd6 KH |
2068 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2069 | ||
9331887d KH |
2070 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2071 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2072 | SPEC_PROP. */ |
c2f5bfd6 KH |
2073 | |
2074 | static unsigned | |
971de7fb | 2075 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2076 | { |
2077 | unsigned score = 0; | |
2078 | int i; | |
c2f5bfd6 | 2079 | |
35027d0c KH |
2080 | /* Score three style numeric fields. Maximum difference is 127. */ |
2081 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2082 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2083 | { | |
790771b1 PE |
2084 | EMACS_INT diff = ((XINT (AREF (entity, i)) >> 8) |
2085 | - (XINT (spec_prop[i]) >> 8)); | |
35027d0c KH |
2086 | if (diff < 0) |
2087 | diff = - diff; | |
790771b1 | 2088 | score |= min (diff, 127) << sort_shift_bits[i]; |
35027d0c KH |
2089 | } |
2090 | ||
2091 | /* Score the size. Maximum difference is 127. */ | |
2092 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2093 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2094 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2095 | { |
2096 | /* We use the higher 6-bit for the actual size difference. The | |
2097 | lowest bit is set if the DPI is different. */ | |
b79e8648 PE |
2098 | EMACS_INT diff; |
2099 | EMACS_INT pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2100 | |
55e41770 KH |
2101 | if (CONSP (Vface_font_rescale_alist)) |
2102 | pixel_size *= font_rescale_ratio (entity); | |
2103 | diff = pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX)); | |
35027d0c KH |
2104 | if (diff < 0) |
2105 | diff = - diff; | |
d0ab1ebe | 2106 | diff <<= 1; |
35027d0c KH |
2107 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2108 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2109 | diff |= 1; | |
c0a6070d KH |
2110 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2111 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2112 | diff |= 1; | |
35027d0c | 2113 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2114 | } |
2115 | ||
2116 | return score; | |
2117 | } | |
2118 | ||
2119 | ||
72d36834 KH |
2120 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2121 | of font-entity vectors. */ | |
c2f5bfd6 | 2122 | |
72d36834 KH |
2123 | static Lisp_Object |
2124 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2125 | { |
72d36834 KH |
2126 | int nargs = XINT (Flength (list)); |
2127 | Lisp_Object *args = alloca (sizeof (Lisp_Object) * nargs); | |
2128 | int i; | |
2129 | ||
2130 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2131 | args[i] = XCAR (list); | |
2132 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2133 | } |
2134 | ||
2135 | ||
2136 | /* The structure for elements being sorted by qsort. */ | |
2137 | struct font_sort_data | |
2138 | { | |
2139 | unsigned score; | |
72d36834 | 2140 | int font_driver_preference; |
c2f5bfd6 KH |
2141 | Lisp_Object entity; |
2142 | }; | |
2143 | ||
2144 | ||
72d36834 KH |
2145 | /* The comparison function for qsort. */ |
2146 | ||
2147 | static int | |
971de7fb | 2148 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2149 | { |
2150 | const struct font_sort_data *data1 = d1; | |
2151 | const struct font_sort_data *data2 = d2; | |
2152 | ||
2153 | if (data1->score < data2->score) | |
2154 | return -1; | |
2155 | else if (data1->score > data2->score) | |
2156 | return 1; | |
2157 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2158 | } | |
2159 | ||
2160 | ||
2161 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2162 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2163 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2164 | of FRAME before sorting. |
35027d0c | 2165 | |
c9477f01 KH |
2166 | If BEST-ONLY is nonzero, return the best matching entity (that |
2167 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2168 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2169 | a single vector of font-entities. | |
c9477f01 | 2170 | |
72d36834 KH |
2171 | This function does no optimization for the case that the total |
2172 | number of elements is 1. The caller should avoid calling this in | |
2173 | such a case. */ | |
c2f5bfd6 KH |
2174 | |
2175 | static Lisp_Object | |
971de7fb | 2176 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, Lisp_Object frame, int best_only) |
c2f5bfd6 | 2177 | { |
9331887d | 2178 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2179 | int len, maxlen, i; |
c2f5bfd6 | 2180 | struct font_sort_data *data; |
35027d0c | 2181 | unsigned best_score; |
72d36834 | 2182 | Lisp_Object best_entity; |
4007dd1c | 2183 | struct frame *f = XFRAME (frame); |
5ad03b97 | 2184 | Lisp_Object tail, vec IF_LINT (= Qnil); |
c2f5bfd6 KH |
2185 | USE_SAFE_ALLOCA; |
2186 | ||
9903d1e6 | 2187 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2188 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2189 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2190 | prefer_prop[FONT_SIZE_INDEX] | |
2191 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2192 | ||
72d36834 KH |
2193 | if (NILP (XCDR (list))) |
2194 | { | |
2195 | /* What we have to take care of is this single vector. */ | |
2196 | vec = XCAR (list); | |
2197 | maxlen = ASIZE (vec); | |
2198 | } | |
2199 | else if (best_only) | |
2200 | { | |
2201 | /* We don't have to perform sort, so there's no need of creating | |
2202 | a single vector. But, we must find the length of the longest | |
2203 | vector. */ | |
2204 | maxlen = 0; | |
2205 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2206 | if (maxlen < ASIZE (XCAR (tail))) | |
2207 | maxlen = ASIZE (XCAR (tail)); | |
2208 | } | |
2209 | else | |
2210 | { | |
2211 | /* We have to create a single vector to sort it. */ | |
2212 | vec = font_vconcat_entity_vectors (list); | |
2213 | maxlen = ASIZE (vec); | |
2214 | } | |
2215 | ||
2216 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * maxlen); | |
c9477f01 KH |
2217 | best_score = 0xFFFFFFFF; |
2218 | best_entity = Qnil; | |
72d36834 KH |
2219 | |
2220 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2221 | { |
72d36834 KH |
2222 | int font_driver_preference = 0; |
2223 | Lisp_Object current_font_driver; | |
ce75f06e | 2224 | |
72d36834 KH |
2225 | if (best_only) |
2226 | vec = XCAR (tail); | |
2227 | len = ASIZE (vec); | |
2228 | ||
2229 | /* We are sure that the length of VEC > 0. */ | |
2230 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2231 | /* Score the elements. */ | |
2232 | for (i = 0; i < len; i++) | |
35027d0c | 2233 | { |
72d36834 KH |
2234 | data[i].entity = AREF (vec, i); |
2235 | data[i].score | |
2236 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2237 | > 0) | |
2238 | ? font_score (data[i].entity, prefer_prop) | |
2239 | : 0xFFFFFFFF); | |
2240 | if (best_only && best_score > data[i].score) | |
2241 | { | |
2242 | best_score = data[i].score; | |
2243 | best_entity = data[i].entity; | |
2244 | if (best_score == 0) | |
2245 | break; | |
2246 | } | |
2247 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2248 | { | |
2249 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2250 | font_driver_preference++; | |
2251 | } | |
2252 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2253 | } |
72d36834 KH |
2254 | |
2255 | /* Sort if necessary. */ | |
2256 | if (! best_only) | |
2257 | { | |
2258 | qsort (data, len, sizeof *data, font_compare); | |
2259 | for (i = 0; i < len; i++) | |
2260 | ASET (vec, i, data[i].entity); | |
2261 | break; | |
2262 | } | |
2263 | else | |
2264 | vec = best_entity; | |
c2f5bfd6 | 2265 | } |
72d36834 | 2266 | |
c2f5bfd6 KH |
2267 | SAFE_FREE (); |
2268 | ||
652b9560 | 2269 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2270 | return vec; |
2271 | } | |
2272 | ||
2273 | \f | |
2274 | /* API of Font Service Layer. */ | |
2275 | ||
45eb10fb KH |
2276 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2277 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2278 | function with font_sort_order after setting up it. */ | |
2279 | ||
c2f5bfd6 | 2280 | void |
971de7fb | 2281 | font_update_sort_order (int *order) |
c2f5bfd6 | 2282 | { |
35027d0c | 2283 | int i, shift_bits; |
c2f5bfd6 | 2284 | |
943b7eea | 2285 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2286 | { |
2287 | int xlfd_idx = order[i]; | |
2288 | ||
2289 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2290 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2291 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2292 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2293 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2294 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2295 | else | |
2296 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2297 | } | |
2298 | } | |
2299 | ||
51c13510 | 2300 | static int |
971de7fb | 2301 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, Lisp_Object features, Lisp_Object table) |
51c13510 KH |
2302 | { |
2303 | Lisp_Object val; | |
2304 | int negative; | |
2305 | ||
2306 | table = assq_no_quit (script, table); | |
2307 | if (NILP (table)) | |
2308 | return 0; | |
2309 | table = XCDR (table); | |
2310 | if (! NILP (langsys)) | |
2311 | { | |
2312 | table = assq_no_quit (langsys, table); | |
2313 | if (NILP (table)) | |
2314 | return 0; | |
2315 | } | |
2316 | else | |
2317 | { | |
2318 | val = assq_no_quit (Qnil, table); | |
2319 | if (NILP (val)) | |
2320 | table = XCAR (table); | |
2321 | else | |
2322 | table = val; | |
2323 | } | |
2324 | table = XCDR (table); | |
2325 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2326 | { | |
2327 | if (NILP (XCAR (features))) | |
c423ecca KH |
2328 | { |
2329 | negative = 1; | |
2330 | continue; | |
2331 | } | |
51c13510 KH |
2332 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2333 | return 0; | |
2334 | } | |
2335 | return 1; | |
2336 | } | |
2337 | ||
2338 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2339 | ||
2340 | static int | |
3cba9369 | 2341 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2342 | { |
2343 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2344 | ||
2345 | script = XCAR (spec); | |
2346 | spec = XCDR (spec); | |
2347 | if (! NILP (spec)) | |
2348 | { | |
2349 | langsys = XCAR (spec); | |
2350 | spec = XCDR (spec); | |
2351 | if (! NILP (spec)) | |
2352 | { | |
2353 | gsub = XCAR (spec); | |
2354 | spec = XCDR (spec); | |
2355 | if (! NILP (spec)) | |
2356 | gpos = XCAR (spec); | |
2357 | } | |
2358 | } | |
2359 | ||
2360 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2361 | XCAR (otf_capability))) | |
2362 | return 0; | |
2363 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2364 | XCDR (otf_capability))) | |
2365 | return 0; | |
2366 | return 1; | |
2367 | } | |
2368 | ||
45eb10fb | 2369 | |
51c13510 KH |
2370 | |
2371 | /* Check if FONT (font-entity or font-object) matches with the font | |
2372 | specification SPEC. */ | |
45eb10fb | 2373 | |
ef18374f | 2374 | int |
971de7fb | 2375 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2376 | { |
51c13510 KH |
2377 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2378 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2379 | int i; |
2380 | ||
51c13510 KH |
2381 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2382 | if (! NILP (AREF (spec, i)) | |
2383 | && ! NILP (AREF (font, i)) | |
2384 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2385 | return 0; | |
2386 | props = XFONT_SPEC (spec)->props; | |
2387 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2388 | { | |
2389 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2390 | prop[i] = AREF (spec, i); | |
2391 | prop[FONT_SIZE_INDEX] | |
2392 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2393 | props = prop; | |
2394 | } | |
2395 | ||
2396 | if (font_score (font, props) > 0) | |
2397 | return 0; | |
2398 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2399 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2400 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2401 | { |
51c13510 KH |
2402 | Lisp_Object key = XCAR (XCAR (extra)); |
2403 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2404 | ||
2405 | if (EQ (key, QClang)) | |
2406 | { | |
2407 | val2 = assq_no_quit (key, font_extra); | |
2408 | if (NILP (val2)) | |
2409 | return 0; | |
2410 | val2 = XCDR (val2); | |
2411 | if (CONSP (val)) | |
2412 | { | |
2413 | if (! CONSP (val2)) | |
2414 | return 0; | |
2415 | while (CONSP (val)) | |
2416 | if (NILP (Fmemq (val, val2))) | |
2417 | return 0; | |
2418 | } | |
2419 | else | |
2420 | if (CONSP (val2) | |
2421 | ? NILP (Fmemq (val, XCDR (val2))) | |
2422 | : ! EQ (val, val2)) | |
2423 | return 0; | |
2424 | } | |
2425 | else if (EQ (key, QCscript)) | |
2426 | { | |
2427 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2428 | if (CONSP (val2)) |
2429 | { | |
2430 | val2 = XCDR (val2); | |
2431 | if (CONSP (val2)) | |
2432 | { | |
2433 | /* All characters in the list must be supported. */ | |
2434 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2435 | { | |
2436 | if (! NATNUMP (XCAR (val2))) | |
2437 | continue; | |
2438 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2439 | == FONT_INVALID_CODE) | |
2440 | return 0; | |
2441 | } | |
2442 | } | |
2443 | else if (VECTORP (val2)) | |
2444 | { | |
2445 | /* At most one character in the vector must be supported. */ | |
2446 | for (i = 0; i < ASIZE (val2); i++) | |
2447 | { | |
2448 | if (! NATNUMP (AREF (val2, i))) | |
2449 | continue; | |
2450 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2451 | != FONT_INVALID_CODE) | |
f5485732 | 2452 | break; |
5bdd4dd2 KH |
2453 | } |
2454 | if (i == ASIZE (val2)) | |
2455 | return 0; | |
2456 | } | |
2457 | } | |
51c13510 KH |
2458 | } |
2459 | else if (EQ (key, QCotf)) | |
2460 | { | |
2461 | struct font *fontp; | |
2462 | ||
2463 | if (! FONT_OBJECT_P (font)) | |
2464 | return 0; | |
2465 | fontp = XFONT_OBJECT (font); | |
2466 | if (! fontp->driver->otf_capability) | |
2467 | return 0; | |
2468 | val2 = fontp->driver->otf_capability (fontp); | |
2469 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2470 | return 0; | |
2471 | } | |
35027d0c KH |
2472 | } |
2473 | ||
51c13510 | 2474 | return 1; |
ef18374f | 2475 | } |
ca4da08a | 2476 | \f |
819e81df | 2477 | |
ca4da08a KH |
2478 | /* Font cache |
2479 | ||
2480 | Each font backend has the callback function get_cache, and it | |
2481 | returns a cons cell of which cdr part can be freely used for | |
2482 | caching fonts. The cons cell may be shared by multiple frames | |
2483 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2484 | ||
2485 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2486 | ||
2487 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2488 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2489 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2490 | ||
f57e2426 J |
2491 | static void font_prepare_cache (FRAME_PTR, struct font_driver *); |
2492 | static void font_finish_cache (FRAME_PTR, struct font_driver *); | |
2493 | static Lisp_Object font_get_cache (FRAME_PTR, struct font_driver *); | |
2494 | static void font_clear_cache (FRAME_PTR, Lisp_Object, | |
2495 | struct font_driver *); | |
ca4da08a KH |
2496 | |
2497 | static void | |
971de7fb | 2498 | font_prepare_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2499 | { |
2500 | Lisp_Object cache, val; | |
2501 | ||
2502 | cache = driver->get_cache (f); | |
2503 | val = XCDR (cache); | |
2504 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2505 | val = XCDR (val); | |
2506 | if (NILP (val)) | |
2507 | { | |
2508 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2509 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2510 | } | |
2511 | else | |
2512 | { | |
2513 | val = XCDR (XCAR (val)); | |
2514 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2515 | } | |
2516 | } | |
2517 | ||
43c0454d | 2518 | |
ca4da08a | 2519 | static void |
971de7fb | 2520 | font_finish_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2521 | { |
2522 | Lisp_Object cache, val, tmp; | |
2523 | ||
2524 | ||
2525 | cache = driver->get_cache (f); | |
2526 | val = XCDR (cache); | |
2527 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2528 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2529 | font_assert (! NILP (val)); |
ca4da08a | 2530 | tmp = XCDR (XCAR (val)); |
43c0454d | 2531 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2532 | if (XINT (XCAR (tmp)) == 0) |
2533 | { | |
2534 | font_clear_cache (f, XCAR (val), driver); | |
2535 | XSETCDR (cache, XCDR (val)); | |
2536 | } | |
ca4da08a KH |
2537 | } |
2538 | ||
43c0454d | 2539 | |
ca4da08a | 2540 | static Lisp_Object |
971de7fb | 2541 | font_get_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2542 | { |
2543 | Lisp_Object val = driver->get_cache (f); | |
2544 | Lisp_Object type = driver->type; | |
2545 | ||
d0ab1ebe | 2546 | font_assert (CONSP (val)); |
ca4da08a | 2547 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2548 | font_assert (CONSP (val)); |
ca4da08a KH |
2549 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2550 | val = XCDR (XCAR (val)); | |
2551 | return val; | |
2552 | } | |
2553 | ||
43c0454d KH |
2554 | static int num_fonts; |
2555 | ||
ca4da08a | 2556 | static void |
971de7fb | 2557 | font_clear_cache (FRAME_PTR f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2558 | { |
2559 | Lisp_Object tail, elt; | |
6136b72f | 2560 | Lisp_Object tail2, entity; |
51c01100 | 2561 | |
ca4da08a KH |
2562 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2563 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2564 | { | |
2565 | elt = XCAR (tail); | |
6136b72f CY |
2566 | /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */ |
2567 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
ca4da08a | 2568 | { |
6136b72f | 2569 | for (tail2 = XCDR (elt); CONSP (tail2); tail2 = XCDR (tail2)) |
ca4da08a | 2570 | { |
6136b72f | 2571 | entity = XCAR (tail2); |
ca4da08a | 2572 | |
6136b72f CY |
2573 | if (FONT_ENTITY_P (entity) |
2574 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2575 | { |
2576 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2577 | ||
2578 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2579 | { | |
2580 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2581 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2582 | |
5e634ec9 KH |
2583 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2584 | { | |
2585 | font_assert (font && driver == font->driver); | |
2586 | driver->close (f, font); | |
2587 | num_fonts--; | |
2588 | } | |
ca4da08a KH |
2589 | } |
2590 | if (driver->free_entity) | |
2591 | driver->free_entity (entity); | |
2592 | } | |
2593 | } | |
2594 | } | |
2595 | } | |
2596 | XSETCDR (cache, Qnil); | |
2597 | } | |
2598 | \f | |
2599 | ||
c2f5bfd6 KH |
2600 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2601 | ||
7d56b2dd | 2602 | /* Check each font-entity in VEC, and return a list of font-entities |
56dd2d86 | 2603 | that satisfy these conditions: |
7d56b2dd KH |
2604 | (1) matches with SPEC and SIZE if SPEC is not nil, and |
2605 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2606 | */ | |
2607 | ||
7b81e2d0 | 2608 | static Lisp_Object |
971de7fb | 2609 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2610 | { |
d0ab1ebe | 2611 | Lisp_Object entity, val; |
35027d0c | 2612 | enum font_property_index prop; |
72d36834 | 2613 | int i; |
45eb10fb | 2614 | |
72d36834 | 2615 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2616 | { |
72d36834 | 2617 | entity = AREF (vec, i); |
7d56b2dd KH |
2618 | if (! NILP (Vface_ignored_fonts)) |
2619 | { | |
2620 | char name[256]; | |
2621 | Lisp_Object tail, regexp; | |
2622 | ||
2623 | if (font_unparse_xlfd (entity, 0, name, 256) >= 0) | |
2624 | { | |
2625 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2626 | { | |
2627 | regexp = XCAR (tail); | |
2628 | if (STRINGP (regexp) | |
2629 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
2630 | break; | |
2631 | } | |
2632 | if (CONSP (tail)) | |
2633 | continue; | |
2634 | } | |
2635 | } | |
2636 | if (NILP (spec)) | |
2637 | { | |
2638 | val = Fcons (entity, val); | |
2639 | continue; | |
2640 | } | |
35027d0c KH |
2641 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2642 | if (INTEGERP (AREF (spec, prop)) | |
2643 | && ((XINT (AREF (spec, prop)) >> 8) | |
2644 | != (XINT (AREF (entity, prop)) >> 8))) | |
2645 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2646 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2647 | && size |
2648 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2649 | { | |
2650 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2651 | |
35027d0c KH |
2652 | if (diff != 0 |
2653 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2654 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2655 | prop = FONT_SPEC_MAX; | |
2656 | } | |
7181ea6a KH |
2657 | if (prop < FONT_SPEC_MAX |
2658 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2659 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2660 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2661 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2662 | prop = FONT_SPEC_MAX; | |
2663 | if (prop < FONT_SPEC_MAX | |
2664 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2665 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2666 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2667 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2668 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2669 | prop = FONT_SPEC_MAX; | |
35027d0c | 2670 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2671 | val = Fcons (entity, val); |
35027d0c | 2672 | } |
72d36834 | 2673 | return (Fvconcat (1, &val)); |
35027d0c KH |
2674 | } |
2675 | ||
2676 | ||
72d36834 | 2677 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2678 | FRAME. Each elements in the list is a vector of entities from the |
2679 | same font-driver. */ | |
35027d0c KH |
2680 | |
2681 | Lisp_Object | |
971de7fb | 2682 | font_list_entities (Lisp_Object frame, Lisp_Object spec) |
c2f5bfd6 KH |
2683 | { |
2684 | FRAME_PTR f = XFRAME (frame); | |
2685 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2686 | Lisp_Object ftype, val; |
72d36834 | 2687 | Lisp_Object list = Qnil; |
35027d0c KH |
2688 | int size; |
2689 | int need_filtering = 0; | |
c2f5bfd6 KH |
2690 | int i; |
2691 | ||
d0ab1ebe | 2692 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2693 | |
35027d0c KH |
2694 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2695 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2696 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2697 | size = font_pixel_size (f, spec); | |
2698 | else | |
2699 | size = 0; | |
2700 | ||
c2f5bfd6 | 2701 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2702 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2703 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2704 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
56201685 PE |
2705 | if (i != FONT_SPACING_INDEX) |
2706 | { | |
2707 | ASET (scratch_font_spec, i, Qnil); | |
2708 | if (! NILP (AREF (spec, i))) | |
2709 | need_filtering = 1; | |
2710 | } | |
aa50ca2f | 2711 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2712 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2713 | ||
c2f5bfd6 | 2714 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2715 | if (driver_list->on |
2716 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2717 | { |
ca4da08a | 2718 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2719 | |
e4c93315 | 2720 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2721 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2722 | if (CONSP (val)) | |
2723 | val = XCDR (val); | |
2724 | else | |
c2f5bfd6 | 2725 | { |
4007dd1c | 2726 | Lisp_Object copy; |
35027d0c | 2727 | |
4007dd1c | 2728 | val = driver_list->driver->list (frame, scratch_font_spec); |
72d36834 KH |
2729 | if (NILP (val)) |
2730 | val = null_vector; | |
2731 | else | |
2732 | val = Fvconcat (1, &val); | |
92470028 | 2733 | copy = copy_font_spec (scratch_font_spec); |
4007dd1c KH |
2734 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2735 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2736 | } |
7d56b2dd KH |
2737 | if (ASIZE (val) > 0 |
2738 | && (need_filtering | |
2739 | || ! NILP (Vface_ignored_fonts))) | |
2740 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2741 | if (ASIZE (val) > 0) |
2742 | list = Fcons (val, list); | |
c2f5bfd6 | 2743 | } |
35027d0c | 2744 | |
72d36834 KH |
2745 | list = Fnreverse (list); |
2746 | FONT_ADD_LOG ("list", spec, list); | |
2747 | return list; | |
c2f5bfd6 KH |
2748 | } |
2749 | ||
45eb10fb | 2750 | |
35027d0c KH |
2751 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2752 | nil, is an array of face's attributes, which specifies preferred | |
2753 | font-related attributes. */ | |
45eb10fb | 2754 | |
e950d6f1 | 2755 | static Lisp_Object |
971de7fb | 2756 | font_matching_entity (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2757 | { |
e950d6f1 KH |
2758 | struct font_driver_list *driver_list = f->font_driver_list; |
2759 | Lisp_Object ftype, size, entity; | |
35027d0c | 2760 | Lisp_Object frame; |
92470028 | 2761 | Lisp_Object work = copy_font_spec (spec); |
e950d6f1 | 2762 | |
35027d0c | 2763 | XSETFRAME (frame, f); |
e950d6f1 KH |
2764 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2765 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2766 | |
8d0e382e AR |
2767 | if (FLOATP (size)) |
2768 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2769 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2770 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2771 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2772 | ||
e950d6f1 KH |
2773 | entity = Qnil; |
2774 | for (; driver_list; driver_list = driver_list->next) | |
2775 | if (driver_list->on | |
2776 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2777 | { | |
ca4da08a | 2778 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2779 | Lisp_Object copy; |
e950d6f1 | 2780 | |
819ab95f KH |
2781 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2782 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2783 | if (CONSP (entity)) |
e950d6f1 KH |
2784 | entity = XCDR (entity); |
2785 | else | |
2786 | { | |
819ab95f | 2787 | entity = driver_list->driver->match (frame, work); |
92470028 | 2788 | copy = copy_font_spec (work); |
7cee5d63 KH |
2789 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2790 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2791 | } |
2792 | if (! NILP (entity)) | |
2793 | break; | |
2794 | } | |
652b9560 | 2795 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2796 | return entity; |
2797 | } | |
2798 | ||
45eb10fb KH |
2799 | |
2800 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2801 | opened font object. */ | |
2802 | ||
c2f5bfd6 | 2803 | static Lisp_Object |
971de7fb | 2804 | font_open_entity (FRAME_PTR f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2805 | { |
2806 | struct font_driver_list *driver_list; | |
43c0454d | 2807 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2808 | struct font *font; |
d26424c5 | 2809 | int min_width, height; |
dbc05432 | 2810 | int scaled_pixel_size = pixel_size; |
c2f5bfd6 | 2811 | |
d0ab1ebe | 2812 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2813 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2814 | if (XINT (size) != 0) |
a35dd56b | 2815 | scaled_pixel_size = pixel_size = XINT (size); |
55e41770 | 2816 | else if (CONSP (Vface_font_rescale_alist)) |
a35dd56b | 2817 | scaled_pixel_size = pixel_size * font_rescale_ratio (entity); |
c2f5bfd6 | 2818 | |
35027d0c KH |
2819 | val = AREF (entity, FONT_TYPE_INDEX); |
2820 | for (driver_list = f->font_driver_list; | |
2821 | driver_list && ! EQ (driver_list->driver->type, val); | |
2822 | driver_list = driver_list->next); | |
2823 | if (! driver_list) | |
2824 | return Qnil; | |
c2f5bfd6 | 2825 | |
d0cf45b7 JD |
2826 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2827 | objlist = XCDR (objlist)) | |
2828 | { | |
2829 | Lisp_Object fn = XCAR (objlist); | |
2830 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2831 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2832 | { | |
2833 | if (driver_list->driver->cached_font_ok == NULL | |
2834 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2835 | return fn; | |
2836 | } | |
2837 | } | |
2838 | ||
a35dd56b | 2839 | font_object = driver_list->driver->open (f, entity, scaled_pixel_size); |
66f5ced0 YM |
2840 | if (!NILP (font_object)) |
2841 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2842 | FONT_ADD_LOG ("open", entity, font_object); |
43c0454d | 2843 | if (NILP (font_object)) |
35027d0c KH |
2844 | return Qnil; |
2845 | ASET (entity, FONT_OBJLIST_INDEX, | |
2846 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2847 | num_fonts++; |
2848 | ||
2849 | font = XFONT_OBJECT (font_object); | |
2850 | min_width = (font->min_width ? font->min_width | |
2851 | : font->average_width ? font->average_width | |
2852 | : font->space_width ? font->space_width | |
2853 | : 1); | |
d26424c5 | 2854 | height = (font->height ? font->height : 1); |
819e81df | 2855 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2856 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2857 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2858 | { |
35027d0c | 2859 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2860 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
35027d0c KH |
2861 | fonts_changed_p = 1; |
2862 | } | |
2863 | else | |
2864 | { | |
2865 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2866 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
d26424c5 KH |
2867 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
2868 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, fonts_changed_p = 1; | |
43c0454d | 2869 | } |
819e81df | 2870 | #endif |
43c0454d KH |
2871 | |
2872 | return font_object; | |
c2f5bfd6 KH |
2873 | } |
2874 | ||
45eb10fb KH |
2875 | |
2876 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2877 | ||
239f9db9 | 2878 | static void |
971de7fb | 2879 | font_close_object (FRAME_PTR f, Lisp_Object font_object) |
c2f5bfd6 | 2880 | { |
35027d0c | 2881 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2882 | |
5e634ec9 KH |
2883 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2884 | /* Already closed. */ | |
2885 | return; | |
652b9560 | 2886 | FONT_ADD_LOG ("close", font_object, Qnil); |
5e634ec9 | 2887 | font->driver->close (f, font); |
819e81df | 2888 | #ifdef HAVE_WINDOW_SYSTEM |
5e634ec9 KH |
2889 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2890 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2891 | #endif |
5e634ec9 | 2892 | num_fonts--; |
c2f5bfd6 KH |
2893 | } |
2894 | ||
45eb10fb | 2895 | |
1701724c KH |
2896 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2897 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2898 | |
c2f5bfd6 | 2899 | int |
971de7fb | 2900 | font_has_char (FRAME_PTR f, Lisp_Object font, int c) |
c2f5bfd6 | 2901 | { |
1b834a8d | 2902 | struct font *fontp; |
c2f5bfd6 | 2903 | |
1b834a8d KH |
2904 | if (FONT_ENTITY_P (font)) |
2905 | { | |
2906 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2907 | struct font_driver_list *driver_list; | |
2908 | ||
2909 | for (driver_list = f->font_driver_list; | |
2910 | driver_list && ! EQ (driver_list->driver->type, type); | |
2911 | driver_list = driver_list->next); | |
2912 | if (! driver_list) | |
2913 | return 0; | |
2914 | if (! driver_list->driver->has_char) | |
2915 | return -1; | |
2916 | return driver_list->driver->has_char (font, c); | |
2917 | } | |
2918 | ||
d0ab1ebe | 2919 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 2920 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2921 | if (fontp->driver->has_char) |
2922 | { | |
35027d0c | 2923 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2924 | |
2925 | if (result >= 0) | |
2926 | return result; | |
2927 | } | |
2928 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2929 | } |
2930 | ||
45eb10fb KH |
2931 | |
2932 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2933 | ||
2f7c71a1 | 2934 | static unsigned |
971de7fb | 2935 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 2936 | { |
35027d0c | 2937 | struct font *font; |
c2f5bfd6 | 2938 | |
d0ab1ebe | 2939 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2940 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2941 | return font->driver->encode_char (font, c); |
2942 | } | |
2943 | ||
45eb10fb KH |
2944 | |
2945 | /* Return the name of FONT_OBJECT. */ | |
2946 | ||
ef18374f | 2947 | Lisp_Object |
971de7fb | 2948 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 2949 | { |
d0ab1ebe | 2950 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2951 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2952 | } |
2953 | ||
45eb10fb | 2954 | |
05802645 CY |
2955 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME |
2956 | could not be parsed by font_parse_name, return Qnil. */ | |
2957 | ||
35027d0c | 2958 | Lisp_Object |
971de7fb | 2959 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 2960 | { |
05802645 | 2961 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 2962 | |
05802645 | 2963 | CHECK_STRING (font_name); |
51b59d79 | 2964 | if (font_parse_name (SSDATA (font_name), spec) == -1) |
05802645 CY |
2965 | return Qnil; |
2966 | font_put_extra (spec, QCname, font_name); | |
42707278 | 2967 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 2968 | return spec; |
35027d0c KH |
2969 | } |
2970 | ||
45eb10fb | 2971 | |
35027d0c | 2972 | void |
971de7fb | 2973 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
2974 | { |
2975 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 2976 | |
35027d0c KH |
2977 | if (! FONTP (font)) |
2978 | return; | |
42707278 | 2979 | |
483670b5 KH |
2980 | if (! NILP (Ffont_get (font, QCname))) |
2981 | { | |
92470028 | 2982 | font = copy_font_spec (font); |
483670b5 KH |
2983 | font_put_extra (font, QCname, Qnil); |
2984 | } | |
2985 | ||
35027d0c | 2986 | if (NILP (AREF (font, prop)) |
e234927a CY |
2987 | && prop != FONT_FAMILY_INDEX |
2988 | && prop != FONT_FOUNDRY_INDEX | |
2989 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 2990 | && prop != FONT_SIZE_INDEX) |
35027d0c | 2991 | return; |
483670b5 | 2992 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
92470028 | 2993 | font = copy_font_spec (font); |
35027d0c | 2994 | ASET (font, prop, Qnil); |
4007dd1c | 2995 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 2996 | { |
4007dd1c | 2997 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
2998 | { |
2999 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
3000 | /* If we are setting the font family, we must also clear | |
3001 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
3002 | support for some widths. */ | |
3003 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
3004 | } | |
35027d0c | 3005 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3006 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3007 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3008 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3009 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3010 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3011 | } | |
3012 | else if (prop == FONT_SIZE_INDEX) | |
3013 | { | |
3014 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3015 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3016 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3017 | } | |
e234927a CY |
3018 | else if (prop == FONT_WIDTH_INDEX) |
3019 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3020 | attrs[LFACE_FONT_INDEX] = font; |
3021 | } | |
3022 | ||
56dd2d86 EZ |
3023 | /* Select a font from ENTITIES (list of font-entity vectors) that |
3024 | supports C and is the best match for ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
3025 | |
3026 | static Lisp_Object | |
971de7fb | 3027 | font_select_entity (Lisp_Object frame, Lisp_Object entities, Lisp_Object *attrs, int pixel_size, int c) |
988a7ddb KH |
3028 | { |
3029 | Lisp_Object font_entity; | |
3030 | Lisp_Object prefer; | |
988a7ddb KH |
3031 | int result, i; |
3032 | FRAME_PTR f = XFRAME (frame); | |
3033 | ||
72d36834 KH |
3034 | if (NILP (XCDR (entities)) |
3035 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 3036 | { |
72d36834 | 3037 | font_entity = AREF (XCAR (entities), 0); |
988a7ddb KH |
3038 | if (c < 0 |
3039 | || (result = font_has_char (f, font_entity, c)) > 0) | |
3040 | return font_entity; | |
3041 | return Qnil; | |
3042 | } | |
3043 | ||
3044 | /* Sort fonts by properties specified in ATTRS. */ | |
3045 | prefer = scratch_font_prefer; | |
3046 | ||
3047 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3048 | ASET (prefer, i, Qnil); | |
3049 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3050 | { | |
3051 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3052 | ||
3053 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3054 | ASET (prefer, i, AREF (face_font, i)); | |
3055 | } | |
3056 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3057 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3058 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3059 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3060 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3061 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3062 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3063 | |
2645d15b | 3064 | return font_sort_entities (entities, prefer, frame, c); |
988a7ddb KH |
3065 | } |
3066 | ||
56dd2d86 EZ |
3067 | /* Return a font-entity that satisfies SPEC and is the best match for |
3068 | face's font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3069 | character that the entity must support. */ |
c2f5bfd6 KH |
3070 | |
3071 | Lisp_Object | |
971de7fb | 3072 | font_find_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3073 | { |
4007dd1c | 3074 | Lisp_Object work; |
72d36834 | 3075 | Lisp_Object frame, entities, val; |
78834453 | 3076 | Lisp_Object foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3077 | int pixel_size; |
72d36834 | 3078 | int i, j, k, l; |
d0a47776 KH |
3079 | |
3080 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3081 | if (NILP (registry[0])) | |
3082 | { | |
edfda783 | 3083 | registry[0] = DEFAULT_ENCODING; |
d0a47776 KH |
3084 | registry[1] = Qascii_0; |
3085 | registry[2] = null_vector; | |
3086 | } | |
3087 | else | |
3088 | registry[1] = null_vector; | |
c2f5bfd6 | 3089 | |
4007dd1c | 3090 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3091 | { |
35027d0c | 3092 | struct charset *encoding, *repertory; |
1701724c | 3093 | |
4007dd1c KH |
3094 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3095 | &encoding, &repertory) < 0) | |
35027d0c | 3096 | return Qnil; |
72d36834 KH |
3097 | if (repertory |
3098 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3099 | return Qnil; | |
35027d0c KH |
3100 | else if (c > encoding->max_char) |
3101 | return Qnil; | |
c2f5bfd6 KH |
3102 | } |
3103 | ||
92470028 | 3104 | work = copy_font_spec (spec); |
227f12fa | 3105 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
35027d0c | 3106 | XSETFRAME (frame, f); |
1d1e1245 | 3107 | pixel_size = font_pixel_size (f, spec); |
dbc05432 | 3108 | if (pixel_size == 0 && INTEGERP (attrs[LFACE_HEIGHT_INDEX])) |
1d1e1245 KH |
3109 | { |
3110 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3111 | ||
3112 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
3113 | } | |
4007dd1c KH |
3114 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3115 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3116 | if (! NILP (foundry[0])) | |
3117 | foundry[1] = null_vector; | |
3118 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
3119 | { | |
071132a9 | 3120 | val = attrs[LFACE_FOUNDRY_INDEX]; |
51b59d79 | 3121 | foundry[0] = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
4007dd1c KH |
3122 | foundry[1] = Qnil; |
3123 | foundry[2] = null_vector; | |
3124 | } | |
3125 | else | |
3126 | foundry[0] = Qnil, foundry[1] = null_vector; | |
3127 | ||
22459668 KH |
3128 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3129 | if (! NILP (adstyle[0])) | |
3130 | adstyle[1] = null_vector; | |
3131 | else if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3132 | { | |
3133 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3134 | ||
3135 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3136 | { | |
3137 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3138 | adstyle[1] = Qnil; | |
3139 | adstyle[2] = null_vector; | |
3140 | } | |
3141 | else | |
3142 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3143 | } | |
3144 | else | |
3145 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3146 | ||
3147 | ||
4007dd1c KH |
3148 | val = AREF (work, FONT_FAMILY_INDEX); |
3149 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3150 | { |
3151 | val = attrs[LFACE_FAMILY_INDEX]; | |
51b59d79 | 3152 | val = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
071132a9 | 3153 | } |
4007dd1c KH |
3154 | if (NILP (val)) |
3155 | { | |
3156 | family = alloca ((sizeof family[0]) * 2); | |
3157 | family[0] = Qnil; | |
3158 | family[1] = null_vector; /* terminator. */ | |
3159 | } | |
3160 | else | |
3161 | { | |
3162 | Lisp_Object alters | |
819ab95f | 3163 | = Fassoc_string (val, Vface_alternative_font_family_alist, |
7107c29e | 3164 | /* Font family names are case-sensitive under NS. */ |
819ab95f KH |
3165 | #ifndef HAVE_NS |
3166 | Qt | |
3167 | #else | |
3168 | Qnil | |
3169 | #endif | |
3170 | ); | |
4007dd1c KH |
3171 | |
3172 | if (! NILP (alters)) | |
3173 | { | |
3174 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
3175 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
3176 | family[i] = XCAR (alters); | |
3177 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3178 | family[i++] = Qnil; | |
3179 | family[i] = null_vector; | |
3180 | } | |
3181 | else | |
3182 | { | |
3183 | family = alloca ((sizeof family[0]) * 3); | |
3184 | i = 0; | |
3185 | family[i++] = val; | |
3186 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3187 | family[i++] = Qnil; | |
3188 | family[i] = null_vector; | |
3189 | } | |
3190 | } | |
3191 | ||
d0a47776 | 3192 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3193 | { |
d0a47776 KH |
3194 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3195 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3196 | { |
d0a47776 KH |
3197 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3198 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3199 | { | |
904a2e0e | 3200 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3201 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3202 | { | |
3203 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
3204 | entities = font_list_entities (frame, work); | |
72d36834 | 3205 | if (! NILP (entities)) |
988a7ddb KH |
3206 | { |
3207 | val = font_select_entity (frame, entities, | |
3208 | attrs, pixel_size, c); | |
3209 | if (! NILP (val)) | |
637fa988 | 3210 | return val; |
988a7ddb | 3211 | } |
22459668 | 3212 | } |
d0a47776 | 3213 | } |
4007dd1c | 3214 | } |
4007dd1c | 3215 | } |
d0a47776 | 3216 | return Qnil; |
1701724c | 3217 | } |
45eb10fb KH |
3218 | |
3219 | ||
c2f5bfd6 | 3220 | Lisp_Object |
971de7fb | 3221 | font_open_for_lface (FRAME_PTR f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3222 | { |
9331887d | 3223 | int size; |
c2f5bfd6 | 3224 | |
4007dd1c KH |
3225 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3226 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3227 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3228 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3229 | size = font_pixel_size (f, spec); |
733fd013 KH |
3230 | else |
3231 | { | |
50b0cd29 CY |
3232 | double pt; |
3233 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3234 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3235 | else | |
3236 | { | |
3237 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3238 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3239 | if (INTEGERP (height)) | |
3240 | pt = XINT (height); | |
3241 | else | |
5e617bc2 | 3242 | abort (); /* We should never end up here. */ |
50b0cd29 | 3243 | } |
733fd013 KH |
3244 | |
3245 | pt /= 10; | |
3246 | size = POINT_TO_PIXEL (pt, f->resy); | |
ed96cde8 AR |
3247 | #ifdef HAVE_NS |
3248 | if (size == 0) | |
3249 | { | |
5e617bc2 | 3250 | Lisp_Object ffsize = get_frame_param (f, Qfontsize); |
ed96cde8 AR |
3251 | size = NUMBERP (ffsize) ? POINT_TO_PIXEL (XINT (ffsize), f->resy) : 0; |
3252 | } | |
3253 | #endif | |
733fd013 | 3254 | } |
c2f5bfd6 KH |
3255 | return font_open_entity (f, entity, size); |
3256 | } | |
3257 | ||
45eb10fb | 3258 | |
56dd2d86 EZ |
3259 | /* Find a font that satisfies SPEC and is the best match for |
3260 | face's attributes in ATTRS on FRAME, and return the opened | |
35027d0c | 3261 | font-object. */ |
45eb10fb | 3262 | |
35027d0c | 3263 | Lisp_Object |
971de7fb | 3264 | font_load_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3265 | { |
637fa988 | 3266 | Lisp_Object entity, name; |
ef18374f | 3267 | |
908567ef | 3268 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3269 | if (NILP (entity)) |
ef18374f | 3270 | { |
35027d0c | 3271 | /* No font is listed for SPEC, but each font-backend may have |
56dd2d86 | 3272 | different criteria about "font matching". So, try it. */ |
35027d0c KH |
3273 | entity = font_matching_entity (f, attrs, spec); |
3274 | if (NILP (entity)) | |
3275 | return Qnil; | |
c2f5bfd6 | 3276 | } |
537b04b9 | 3277 | /* Don't lose the original name that was put in initially. We need |
637fa988 JD |
3278 | it to re-apply the font when font parameters (like hinting or dpi) have |
3279 | changed. */ | |
3280 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3281 | if (!NILP (entity)) |
3282 | { | |
42707278 JD |
3283 | name = Ffont_get (spec, QCuser_spec); |
3284 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3285 | } |
637fa988 | 3286 | return entity; |
c2f5bfd6 KH |
3287 | } |
3288 | ||
45eb10fb KH |
3289 | |
3290 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3291 | ||
c2f5bfd6 | 3292 | void |
971de7fb | 3293 | font_prepare_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3294 | { |
35027d0c KH |
3295 | if (face->font->driver->prepare_face) |
3296 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3297 | } |
3298 | ||
45eb10fb KH |
3299 | |
3300 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3301 | ||
c2f5bfd6 | 3302 | void |
971de7fb | 3303 | font_done_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3304 | { |
35027d0c KH |
3305 | if (face->font->driver->done_face) |
3306 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3307 | face->extra = NULL; |
3308 | } | |
3309 | ||
45eb10fb | 3310 | |
56dd2d86 | 3311 | /* Open a font that is a match for font-spec SPEC on frame F. If no proper |
c50b7e98 | 3312 | font is found, return Qnil. */ |
45eb10fb | 3313 | |
c2f5bfd6 | 3314 | Lisp_Object |
971de7fb | 3315 | font_open_by_spec (FRAME_PTR f, Lisp_Object spec) |
c2f5bfd6 | 3316 | { |
c50b7e98 | 3317 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3318 | |
4007dd1c KH |
3319 | /* We set up the default font-related attributes of a face to prefer |
3320 | a moderate font. */ | |
3321 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3322 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3323 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3324 | #ifndef HAVE_NS |
4007dd1c | 3325 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3326 | #else |
3327 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3328 | #endif | |
4007dd1c KH |
3329 | attrs[LFACE_FONT_INDEX] = Qnil; |
3330 | ||
3331 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3332 | } |
3333 | ||
3334 | ||
56dd2d86 | 3335 | /* Open a font that matches NAME on frame F. If no proper font is |
c50b7e98 KH |
3336 | found, return Qnil. */ |
3337 | ||
3338 | Lisp_Object | |
42ca4633 | 3339 | font_open_by_name (FRAME_PTR f, const char *name) |
c50b7e98 KH |
3340 | { |
3341 | Lisp_Object args[2]; | |
581e51e8 | 3342 | Lisp_Object spec, ret; |
c50b7e98 KH |
3343 | |
3344 | args[0] = QCname; | |
3345 | args[1] = make_unibyte_string (name, strlen (name)); | |
3346 | spec = Ffont_spec (2, args); | |
581e51e8 | 3347 | ret = font_open_by_spec (f, spec); |
537b04b9 | 3348 | /* Do not lose name originally put in. */ |
8096a0ff | 3349 | if (!NILP (ret)) |
42707278 | 3350 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3351 | |
3352 | return ret; | |
c50b7e98 KH |
3353 | } |
3354 | ||
3355 | ||
c2f5bfd6 KH |
3356 | /* Register font-driver DRIVER. This function is used in two ways. |
3357 | ||
417a1b10 | 3358 | The first is with frame F non-NULL. In this case, make DRIVER |
56dd2d86 | 3359 | available (but not yet activated) on F. All frame creators |
417a1b10 KH |
3360 | (e.g. Fx_create_frame) must call this function at least once with |
3361 | an available font-driver. | |
c2f5bfd6 KH |
3362 | |
3363 | The second is with frame F NULL. In this case, DRIVER is globally | |
3364 | registered in the variable `font_driver_list'. All font-driver | |
3365 | implementations must call this function in its syms_of_XXXX | |
3366 | (e.g. syms_of_xfont). */ | |
3367 | ||
3368 | void | |
971de7fb | 3369 | register_font_driver (struct font_driver *driver, FRAME_PTR f) |
c2f5bfd6 KH |
3370 | { |
3371 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3372 | struct font_driver_list *prev, *list; | |
3373 | ||
3374 | if (f && ! driver->draw) | |
43a1d19b | 3375 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3376 | SDATA (SYMBOL_NAME (driver->type))); |
3377 | ||
3378 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3379 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3380 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3381 | ||
c115043b | 3382 | list = xmalloc (sizeof (struct font_driver_list)); |
417a1b10 | 3383 | list->on = 0; |
c2f5bfd6 KH |
3384 | list->driver = driver; |
3385 | list->next = NULL; | |
3386 | if (prev) | |
3387 | prev->next = list; | |
3388 | else if (f) | |
3389 | f->font_driver_list = list; | |
3390 | else | |
3391 | font_driver_list = list; | |
72606e45 KH |
3392 | if (! f) |
3393 | num_font_drivers++; | |
c2f5bfd6 KH |
3394 | } |
3395 | ||
2ed98482 | 3396 | void |
971de7fb | 3397 | free_font_driver_list (FRAME_PTR f) |
2ed98482 CY |
3398 | { |
3399 | struct font_driver_list *list, *next; | |
3400 | ||
3401 | for (list = f->font_driver_list; list; list = next) | |
3402 | { | |
3403 | next = list->next; | |
3404 | xfree (list); | |
3405 | } | |
3406 | f->font_driver_list = NULL; | |
3407 | } | |
3408 | ||
45eb10fb | 3409 | |
f697fff0 | 3410 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3411 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3412 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3413 | |
ca4da08a KH |
3414 | A caller must free all realized faces if any in advance. The |
3415 | return value is a list of font backends actually made used on | |
3416 | F. */ | |
e950d6f1 KH |
3417 | |
3418 | Lisp_Object | |
971de7fb | 3419 | font_update_drivers (FRAME_PTR f, Lisp_Object new_drivers) |
417a1b10 KH |
3420 | { |
3421 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
3422 | struct font_driver_list *list; |
3423 | ||
4007dd1c KH |
3424 | /* At first, turn off non-requested drivers, and turn on requested |
3425 | drivers. */ | |
f697fff0 | 3426 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c | 3427 | { |
13a547c6 | 3428 | struct font_driver *driver = list->driver; |
4007dd1c KH |
3429 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) |
3430 | != list->on) | |
3431 | { | |
3432 | if (list->on) | |
3433 | { | |
3434 | if (driver->end_for_frame) | |
3435 | driver->end_for_frame (f); | |
3436 | font_finish_cache (f, driver); | |
3437 | list->on = 0; | |
3438 | } | |
3439 | else | |
3440 | { | |
3441 | if (! driver->start_for_frame | |
3442 | || driver->start_for_frame (f) == 0) | |
3443 | { | |
3444 | font_prepare_cache (f, driver); | |
3445 | list->on = 1; | |
3446 | } | |
3447 | } | |
3448 | } | |
3449 | } | |
3450 | ||
3451 | if (NILP (new_drivers)) | |
3452 | return Qnil; | |
3453 | ||
3454 | if (! EQ (new_drivers, Qt)) | |
3455 | { | |
3456 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3457 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3458 | Lisp_Object tail; |
3459 | int i; | |
3460 | ||
3461 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3462 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3463 | { | |
3464 | for (list = f->font_driver_list; list; list = list->next) | |
3465 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3466 | break; | |
3467 | if (list) | |
3468 | list_table[i++] = list; | |
3469 | } | |
3470 | for (list = f->font_driver_list; list; list = list->next) | |
3471 | if (! list->on) | |
6136b72f | 3472 | list_table[i++] = list; |
4007dd1c KH |
3473 | list_table[i] = NULL; |
3474 | ||
3306c6dc | 3475 | next = &f->font_driver_list; |
4007dd1c KH |
3476 | for (i = 0; list_table[i]; i++) |
3477 | { | |
3306c6dc AS |
3478 | *next = list_table[i]; |
3479 | next = &(*next)->next; | |
4007dd1c | 3480 | } |
3306c6dc | 3481 | *next = NULL; |
ba98e3a0 SM |
3482 | |
3483 | if (! f->font_driver_list->on) | |
3484 | { /* None of the drivers is enabled: enable them all. | |
3485 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3486 | and then use it under w32 or ns. */ | |
3487 | for (list = f->font_driver_list; list; list = list->next) | |
3488 | { | |
3489 | struct font_driver *driver = list->driver; | |
3490 | eassert (! list->on); | |
3491 | if (! driver->start_for_frame | |
3492 | || driver->start_for_frame (f) == 0) | |
3493 | { | |
3494 | font_prepare_cache (f, driver); | |
3495 | list->on = 1; | |
3496 | } | |
3497 | } | |
3498 | } | |
4007dd1c | 3499 | } |
417a1b10 | 3500 | |
4007dd1c KH |
3501 | for (list = f->font_driver_list; list; list = list->next) |
3502 | if (list->on) | |
3503 | active_drivers = nconc2 (active_drivers, | |
3504 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3505 | return active_drivers; |
417a1b10 KH |
3506 | } |
3507 | ||
f697fff0 | 3508 | int |
971de7fb | 3509 | font_put_frame_data (FRAME_PTR f, struct font_driver *driver, void *data) |
f697fff0 KH |
3510 | { |
3511 | struct font_data_list *list, *prev; | |
3512 | ||
3513 | for (prev = NULL, list = f->font_data_list; list; | |
3514 | prev = list, list = list->next) | |
3515 | if (list->driver == driver) | |
3516 | break; | |
3517 | if (! data) | |
3518 | { | |
3519 | if (list) | |
3520 | { | |
3521 | if (prev) | |
3522 | prev->next = list->next; | |
3523 | else | |
3524 | f->font_data_list = list->next; | |
973e7849 | 3525 | xfree (list); |
f697fff0 KH |
3526 | } |
3527 | return 0; | |
3528 | } | |
3529 | ||
3530 | if (! list) | |
3531 | { | |
c115043b | 3532 | list = xmalloc (sizeof (struct font_data_list)); |
f697fff0 KH |
3533 | list->driver = driver; |
3534 | list->next = f->font_data_list; | |
3535 | f->font_data_list = list; | |
3536 | } | |
3537 | list->data = data; | |
3538 | return 0; | |
3539 | } | |
3540 | ||
3541 | ||
3542 | void * | |
971de7fb | 3543 | font_get_frame_data (FRAME_PTR f, struct font_driver *driver) |
f697fff0 KH |
3544 | { |
3545 | struct font_data_list *list; | |
3546 | ||
3547 | for (list = f->font_data_list; list; list = list->next) | |
3548 | if (list->driver == driver) | |
3549 | break; | |
3550 | if (! list) | |
3551 | return NULL; | |
3552 | return list->data; | |
3553 | } | |
3554 | ||
417a1b10 | 3555 | |
9fa82824 DP |
3556 | /* Sets attributes on a font. Any properties that appear in ALIST and |
3557 | BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font. | |
3558 | BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated | |
3559 | arrays of strings. This function is intended for use by the font | |
3560 | drivers to implement their specific font_filter_properties. */ | |
3561 | void | |
220d91b8 JB |
3562 | font_filter_properties (Lisp_Object font, |
3563 | Lisp_Object alist, | |
3106121c YM |
3564 | const char *const boolean_properties[], |
3565 | const char *const non_boolean_properties[]) | |
9fa82824 DP |
3566 | { |
3567 | Lisp_Object it; | |
3568 | int i; | |
3569 | ||
3570 | /* Set boolean values to Qt or Qnil */ | |
3571 | for (i = 0; boolean_properties[i] != NULL; ++i) | |
3572 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3573 | { | |
3574 | Lisp_Object key = XCAR (XCAR (it)); | |
3575 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3576 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3577 | |
3578 | if (strcmp (boolean_properties[i], keystr) == 0) | |
3579 | { | |
3580 | const char *str = INTEGERP (val) ? (XINT (val) ? "true" : "false") | |
51b59d79 | 3581 | : SYMBOLP (val) ? SSDATA (SYMBOL_NAME (val)) |
9fa82824 DP |
3582 | : "true"; |
3583 | ||
3584 | if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0 | |
3585 | || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0 | |
3586 | || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0 | |
3587 | || strcmp ("Off", str) == 0) | |
3588 | val = Qnil; | |
3589 | else | |
3590 | val = Qt; | |
3591 | ||
3592 | Ffont_put (font, key, val); | |
3593 | } | |
3594 | } | |
3595 | ||
3596 | for (i = 0; non_boolean_properties[i] != NULL; ++i) | |
3597 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3598 | { | |
3599 | Lisp_Object key = XCAR (XCAR (it)); | |
3600 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3601 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3602 | if (strcmp (non_boolean_properties[i], keystr) == 0) |
3603 | Ffont_put (font, key, val); | |
3604 | } | |
3605 | } | |
3606 | ||
3607 | ||
45eb10fb | 3608 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3609 | POS in window W. If STRING is non-nil, it is a string containing C |
3610 | at index POS. If C is negative, get C from the current buffer or | |
3611 | STRING. */ | |
45eb10fb | 3612 | |
2f7c71a1 AS |
3613 | static Lisp_Object |
3614 | font_at (int c, EMACS_INT pos, struct face *face, struct window *w, | |
3615 | Lisp_Object string) | |
10d16101 KH |
3616 | { |
3617 | FRAME_PTR f; | |
e3ee0340 | 3618 | int multibyte; |
35027d0c | 3619 | Lisp_Object font_object; |
e3ee0340 | 3620 | |
e500c47d | 3621 | multibyte = (NILP (string) |
4b4deea2 | 3622 | ? ! NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e500c47d | 3623 | : STRING_MULTIBYTE (string)); |
e3ee0340 KH |
3624 | if (c < 0) |
3625 | { | |
3626 | if (NILP (string)) | |
3627 | { | |
e3ee0340 KH |
3628 | if (multibyte) |
3629 | { | |
3630 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3631 | ||
3632 | c = FETCH_CHAR (pos_byte); | |
3633 | } | |
3634 | else | |
3635 | c = FETCH_BYTE (pos); | |
3636 | } | |
3637 | else | |
3638 | { | |
3639 | unsigned char *str; | |
3640 | ||
3641 | multibyte = STRING_MULTIBYTE (string); | |
3642 | if (multibyte) | |
3643 | { | |
3644 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3645 | ||
3646 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3647 | c = STRING_CHAR (str); |
e3ee0340 KH |
3648 | } |
3649 | else | |
3650 | c = SDATA (string)[pos]; | |
3651 | } | |
3652 | } | |
10d16101 KH |
3653 | |
3654 | f = XFRAME (w->frame); | |
1385a806 KH |
3655 | if (! FRAME_WINDOW_P (f)) |
3656 | return Qnil; | |
10d16101 KH |
3657 | if (! face) |
3658 | { | |
e3ee0340 | 3659 | int face_id; |
0f8b27ea | 3660 | EMACS_INT endptr; |
e3ee0340 KH |
3661 | |
3662 | if (STRINGP (string)) | |
3663 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3664 | DEFAULT_FACE_ID, 0); |
3665 | else | |
e3ee0340 | 3666 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
6970f632 | 3667 | pos + 100, 0, -1); |
10d16101 KH |
3668 | face = FACE_FROM_ID (f, face_id); |
3669 | } | |
e3ee0340 KH |
3670 | if (multibyte) |
3671 | { | |
3672 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3673 | face = FACE_FROM_ID (f, face_id); | |
3674 | } | |
35027d0c | 3675 | if (! face->font) |
10d16101 | 3676 | return Qnil; |
35027d0c | 3677 | |
35027d0c KH |
3678 | XSETFONT (font_object, face->font); |
3679 | return font_object; | |
3680 | } | |
3681 | ||
3682 | ||
071132a9 KH |
3683 | #ifdef HAVE_WINDOW_SYSTEM |
3684 | ||
3685 | /* Check how many characters after POS (at most to *LIMIT) can be | |
56dd2d86 | 3686 | displayed by the same font in the window W. FACE, if non-NULL, is |
071132a9 KH |
3687 | the face selected for the character at POS. If STRING is not nil, |
3688 | it is the string to check instead of the current buffer. In that | |
3689 | case, FACE must be not NULL. | |
027a33c0 | 3690 | |
071132a9 KH |
3691 | The return value is the font-object for the character at POS. |
3692 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3693 | |
071132a9 KH |
3694 | It is assured that the current buffer (or STRING) is multibyte. */ |
3695 | ||
3696 | Lisp_Object | |
971de7fb | 3697 | font_range (EMACS_INT pos, EMACS_INT *limit, struct window *w, struct face *face, Lisp_Object string) |
35027d0c | 3698 | { |
0e5d7800 | 3699 | EMACS_INT pos_byte, ignore; |
35027d0c | 3700 | int c; |
071132a9 | 3701 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3702 | |
3703 | if (NILP (string)) | |
3704 | { | |
35027d0c | 3705 | pos_byte = CHAR_TO_BYTE (pos); |
071132a9 KH |
3706 | if (! face) |
3707 | { | |
3708 | int face_id; | |
3709 | ||
6970f632 CY |
3710 | face_id = face_at_buffer_position (w, pos, 0, 0, &ignore, |
3711 | *limit, 0, -1); | |
071132a9 KH |
3712 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
3713 | } | |
35027d0c KH |
3714 | } |
3715 | else | |
3716 | { | |
071132a9 | 3717 | font_assert (face); |
35027d0c KH |
3718 | pos_byte = string_char_to_byte (string, pos); |
3719 | } | |
3720 | ||
071132a9 | 3721 | while (pos < *limit) |
35027d0c | 3722 | { |
071132a9 | 3723 | Lisp_Object category; |
35027d0c KH |
3724 | |
3725 | if (NILP (string)) | |
3726 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3727 | else | |
3728 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 | 3729 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
c805dec0 KH |
3730 | if (INTEGERP (category) |
3731 | && (XINT (category) == UNICODE_CATEGORY_Cf | |
3732 | || CHAR_VARIATION_SELECTOR_P (c))) | |
0e5d7800 | 3733 | continue; |
071132a9 | 3734 | if (NILP (font_object)) |
35027d0c | 3735 | { |
071132a9 KH |
3736 | font_object = font_for_char (face, c, pos - 1, string); |
3737 | if (NILP (font_object)) | |
3738 | return Qnil; | |
35027d0c KH |
3739 | continue; |
3740 | } | |
0e5d7800 KH |
3741 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3742 | *limit = pos - 1; | |
35027d0c | 3743 | } |
071132a9 | 3744 | return font_object; |
10d16101 | 3745 | } |
071132a9 | 3746 | #endif |
10d16101 | 3747 | |
c2f5bfd6 KH |
3748 | \f |
3749 | /* Lisp API */ | |
3750 | ||
35027d0c | 3751 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3752 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3753 | Return nil otherwise. |
3754 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3755 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3756 | `font-object'. */) |
5842a27b | 3757 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3758 | { |
35027d0c KH |
3759 | if (NILP (extra_type)) |
3760 | return (FONTP (object) ? Qt : Qnil); | |
3761 | if (EQ (extra_type, Qfont_spec)) | |
3762 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3763 | if (EQ (extra_type, Qfont_entity)) | |
3764 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3765 | if (EQ (extra_type, Qfont_object)) | |
3766 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3767 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3768 | } |
3769 | ||
a7ca3326 | 3770 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, |
45eb10fb KH |
3771 | doc: /* Return a newly created font-spec with arguments as properties. |
3772 | ||
3773 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3774 | valid font property name listed below: | |
3775 | ||
3776 | `:family', `:weight', `:slant', `:width' | |
3777 | ||
3778 | They are the same as face attributes of the same name. See | |
51c01100 | 3779 | `set-face-attribute'. |
45eb10fb KH |
3780 | |
3781 | `:foundry' | |
3782 | ||
3783 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3784 | ||
3785 | `:adstyle' | |
3786 | ||
3787 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3788 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3789 | |
3790 | `:registry' | |
3791 | ||
3792 | VALUE must be a string or a symbol specifying the charset registry and | |
3793 | encoding of a font, e.g. ``iso8859-1''. | |
3794 | ||
3795 | `:size' | |
3796 | ||
3797 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3798 | specifying the font size. It specifies the font size in pixels (if |
3799 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3800 | |
3801 | `:name' | |
3802 | ||
7a18a178 | 3803 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3804 | |
3805 | `:script' | |
3806 | ||
3807 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3808 | support. It may be a symbol representing a subgroup of a script |
3809 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3810 | |
3811 | `:lang' | |
3812 | ||
3813 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3814 | e.g. `ja'. | |
3815 | ||
3816 | `:otf' | |
3817 | ||
3818 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3819 | required OpenType features. | |
3820 | ||
3821 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3822 | LANGSYS-TAG: OpenType language system tag symbol, | |
3823 | or nil for the default language system. | |
3824 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3825 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3826 | ||
3827 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3828 | must not have any of the remaining elements. | |
3829 | ||
3830 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
56dd2d86 | 3831 | be an OpenType font whose GPOS table of `thai' script's default |
c423ecca KH |
3832 | language system must contain `mark' feature. |
3833 | ||
ba3de0e8 | 3834 | usage: (font-spec ARGS...) */) |
f66c7cf8 | 3835 | (ptrdiff_t nargs, Lisp_Object *args) |
c2f5bfd6 | 3836 | { |
35027d0c | 3837 | Lisp_Object spec = font_make_spec (); |
f66c7cf8 | 3838 | ptrdiff_t i; |
c2f5bfd6 KH |
3839 | |
3840 | for (i = 0; i < nargs; i += 2) | |
3841 | { | |
cccd42d5 KH |
3842 | Lisp_Object key = args[i], val; |
3843 | ||
3844 | CHECK_SYMBOL (key); | |
3845 | if (i + 1 >= nargs) | |
3846 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3847 | val = args[i + 1]; | |
c2f5bfd6 | 3848 | |
35027d0c KH |
3849 | if (EQ (key, QCname)) |
3850 | { | |
3851 | CHECK_STRING (val); | |
51b59d79 | 3852 | font_parse_name (SSDATA (val), spec); |
35027d0c KH |
3853 | font_put_extra (spec, key, val); |
3854 | } | |
c2f5bfd6 | 3855 | else |
4485a28e | 3856 | { |
35027d0c KH |
3857 | int idx = get_font_prop_index (key); |
3858 | ||
3859 | if (idx >= 0) | |
ec6fe57c | 3860 | { |
35027d0c KH |
3861 | val = font_prop_validate (idx, Qnil, val); |
3862 | if (idx < FONT_EXTRA_INDEX) | |
3863 | ASET (spec, idx, val); | |
3864 | else | |
3865 | font_put_extra (spec, key, val); | |
ec6fe57c | 3866 | } |
35027d0c KH |
3867 | else |
3868 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3869 | } |
e950d6f1 | 3870 | } |
c2f5bfd6 KH |
3871 | return spec; |
3872 | } | |
3873 | ||
92470028 PE |
3874 | /* Return a copy of FONT as a font-spec. */ |
3875 | Lisp_Object | |
3876 | copy_font_spec (Lisp_Object font) | |
35027d0c | 3877 | { |
d26424c5 | 3878 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3879 | int i; |
3880 | ||
3881 | CHECK_FONT (font); | |
3882 | new_spec = font_make_spec (); | |
3883 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3884 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 3885 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
3886 | /* We must remove :font-entity property. */ |
3887 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3888 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3889 | { | |
3890 | if (NILP (prev)) | |
3891 | extra = XCDR (extra); | |
3892 | else | |
3893 | XSETCDR (prev, XCDR (tail)); | |
3894 | break; | |
3895 | } | |
35027d0c KH |
3896 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3897 | return new_spec; | |
3898 | } | |
3899 | ||
92470028 PE |
3900 | /* Merge font-specs FROM and TO, and return a new font-spec. |
3901 | Every specified property in FROM overrides the corresponding | |
3902 | property in TO. */ | |
3903 | Lisp_Object | |
3904 | merge_font_spec (Lisp_Object from, Lisp_Object to) | |
35027d0c KH |
3905 | { |
3906 | Lisp_Object extra, tail; | |
3907 | int i; | |
3908 | ||
3909 | CHECK_FONT (from); | |
3910 | CHECK_FONT (to); | |
92470028 | 3911 | to = copy_font_spec (to); |
35027d0c KH |
3912 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
3913 | ASET (to, i, AREF (from, i)); | |
3914 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3915 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3916 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3917 | { | |
3918 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3919 | ||
3920 | if (! NILP (slot)) | |
3921 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3922 | else | |
3923 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3924 | } | |
3925 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3926 | return to; | |
3927 | } | |
c2f5bfd6 | 3928 | |
a7ca3326 | 3929 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, |
45eb10fb | 3930 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 3931 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 3932 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 3933 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 3934 | :size, :name, :script, :otf |
5bdd4dd2 | 3935 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
3936 | In addition, if FONT is a font-entity or a font-object, values of |
3937 | :script and :otf are different from those of a font-spec as below: | |
3938 | ||
3939 | The value of :script may be a list of scripts that are supported by the font. | |
3940 | ||
3941 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
3942 | representing the OpenType features supported by the font by this form: | |
3943 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3944 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
3945 | Layout tags. */) | |
5842a27b | 3946 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 3947 | { |
35027d0c | 3948 | int idx; |
a7840ffb | 3949 | Lisp_Object val; |
c2f5bfd6 | 3950 | |
35027d0c KH |
3951 | CHECK_FONT (font); |
3952 | CHECK_SYMBOL (key); | |
e80e09b4 | 3953 | |
35027d0c | 3954 | idx = get_font_prop_index (key); |
2babb359 KH |
3955 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3956 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 3957 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 3958 | return AREF (font, idx); |
a7840ffb KH |
3959 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
3960 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
3961 | { | |
3962 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 3963 | |
f6c1c771 KH |
3964 | if (fontp->driver->otf_capability) |
3965 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 3966 | else |
f6c1c771 | 3967 | val = Fcons (Qnil, Qnil); |
a7840ffb KH |
3968 | } |
3969 | else | |
3970 | val = Fcdr (val); | |
3971 | return val; | |
c2f5bfd6 KH |
3972 | } |
3973 | ||
51cf11be AS |
3974 | #ifdef HAVE_WINDOW_SYSTEM |
3975 | ||
b1868a1a CY |
3976 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
3977 | doc: /* Return a plist of face attributes generated by FONT. | |
3978 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
3979 | The return value is a list of the form | |
3980 | ||
6f568955 | 3981 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 3982 | |
48105a6a | 3983 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
3984 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
3985 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 3986 | |
48105a6a JB |
3987 | The optional argument FRAME specifies the frame that the face attributes |
3988 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 3989 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a CY |
3990 | { |
3991 | struct frame *f; | |
3992 | Lisp_Object plist[10]; | |
3993 | Lisp_Object val; | |
5989ba2f | 3994 | int n = 0; |
b1868a1a CY |
3995 | |
3996 | if (NILP (frame)) | |
3997 | frame = selected_frame; | |
3998 | CHECK_LIVE_FRAME (frame); | |
3999 | f = XFRAME (frame); | |
4000 | ||
4001 | if (STRINGP (font)) | |
4002 | { | |
4003 | int fontset = fs_query_fontset (font, 0); | |
4004 | Lisp_Object name = font; | |
4005 | if (fontset >= 0) | |
4006 | font = fontset_ascii (fontset); | |
4007 | font = font_spec_from_name (name); | |
4008 | if (! FONTP (font)) | |
4009 | signal_error ("Invalid font name", name); | |
4010 | } | |
4011 | else if (! FONTP (font)) | |
4012 | signal_error ("Invalid font object", font); | |
4013 | ||
b1868a1a | 4014 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4015 | if (! NILP (val)) |
4016 | { | |
4017 | plist[n++] = QCfamily; | |
4018 | plist[n++] = SYMBOL_NAME (val); | |
4019 | } | |
b1868a1a | 4020 | |
b1868a1a CY |
4021 | val = AREF (font, FONT_SIZE_INDEX); |
4022 | if (INTEGERP (val)) | |
4023 | { | |
4024 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
4025 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy; | |
5989ba2f | 4026 | plist[n++] = QCheight; |
c3bb5465 | 4027 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4028 | } |
4029 | else if (FLOATP (val)) | |
5989ba2f CY |
4030 | { |
4031 | plist[n++] = QCheight; | |
4032 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4033 | } | |
b1868a1a | 4034 | |
b1868a1a | 4035 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4036 | if (! NILP (val)) |
4037 | { | |
4038 | plist[n++] = QCweight; | |
4039 | plist[n++] = val; | |
4040 | } | |
b1868a1a | 4041 | |
b1868a1a | 4042 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4043 | if (! NILP (val)) |
4044 | { | |
4045 | plist[n++] = QCslant; | |
4046 | plist[n++] = val; | |
4047 | } | |
b1868a1a | 4048 | |
b1868a1a | 4049 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4050 | if (! NILP (val)) |
4051 | { | |
4052 | plist[n++] = QCwidth; | |
4053 | plist[n++] = val; | |
4054 | } | |
b1868a1a | 4055 | |
5989ba2f | 4056 | return Flist (n, plist); |
b1868a1a | 4057 | } |
c2f5bfd6 | 4058 | |
51cf11be AS |
4059 | #endif |
4060 | ||
a7ca3326 | 4061 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4062 | doc: /* Set one property of FONT: give property KEY value VAL. |
4063 | FONT is a font-spec, a font-entity, or a font-object. | |
4064 | ||
4065 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4066 | accepted by the function `font-spec' (which see), VAL must be what | |
4067 | allowed in `font-spec'. | |
4068 | ||
4069 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4070 | accepted by `font-spec'. */) | |
e1ffae3b | 4071 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4072 | { |
35027d0c | 4073 | int idx; |
c2f5bfd6 | 4074 | |
35027d0c KH |
4075 | idx = get_font_prop_index (prop); |
4076 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4077 | { |
4078 | CHECK_FONT_SPEC (font); | |
4079 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4080 | } | |
c2f5bfd6 | 4081 | else |
a7840ffb KH |
4082 | { |
4083 | if (EQ (prop, QCname) | |
4084 | || EQ (prop, QCscript) | |
4085 | || EQ (prop, QClang) | |
4086 | || EQ (prop, QCotf)) | |
4087 | CHECK_FONT_SPEC (font); | |
4088 | else | |
4089 | CHECK_FONT (font); | |
4090 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4091 | } | |
c2f5bfd6 KH |
4092 | return val; |
4093 | } | |
4094 | ||
a7ca3326 | 4095 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, |
c2f5bfd6 KH |
4096 | doc: /* List available fonts matching FONT-SPEC on the current frame. |
4097 | Optional 2nd argument FRAME specifies the target frame. | |
4098 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4099 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4100 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4101 | how close they are to PREFER. */) |
5842a27b | 4102 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4103 | { |
72d36834 KH |
4104 | Lisp_Object vec, list; |
4105 | int n = 0; | |
c2f5bfd6 KH |
4106 | |
4107 | if (NILP (frame)) | |
4108 | frame = selected_frame; | |
4109 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 4110 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4111 | if (! NILP (num)) |
4112 | { | |
4113 | CHECK_NUMBER (num); | |
4114 | n = XINT (num); | |
4115 | if (n <= 0) | |
4116 | return Qnil; | |
4117 | } | |
4118 | if (! NILP (prefer)) | |
35027d0c | 4119 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4120 | |
72d36834 KH |
4121 | list = font_list_entities (frame, font_spec); |
4122 | if (NILP (list)) | |
c2f5bfd6 | 4123 | return Qnil; |
72d36834 KH |
4124 | if (NILP (XCDR (list)) |
4125 | && ASIZE (XCAR (list)) == 1) | |
4126 | return Fcons (AREF (XCAR (list), 0), Qnil); | |
c2f5bfd6 KH |
4127 | |
4128 | if (! NILP (prefer)) | |
72d36834 KH |
4129 | vec = font_sort_entities (list, prefer, frame, 0); |
4130 | else | |
4131 | vec = font_vconcat_entity_vectors (list); | |
4132 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4133 | { |
72d36834 | 4134 | Lisp_Object args[2]; |
c2f5bfd6 | 4135 | |
72d36834 KH |
4136 | args[0] = vec; |
4137 | args[1] = Qnil; | |
4138 | list = Fappend (2, args); | |
4139 | } | |
4140 | else | |
4141 | { | |
4142 | for (list = Qnil, n--; n >= 0; n--) | |
4143 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4144 | } |
4145 | return list; | |
4146 | } | |
4147 | ||
35027d0c | 4148 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4149 | doc: /* List available font families on the current frame. |
027a33c0 | 4150 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
5842a27b | 4151 | (Lisp_Object frame) |
c2f5bfd6 KH |
4152 | { |
4153 | FRAME_PTR f; | |
4154 | struct font_driver_list *driver_list; | |
4155 | Lisp_Object list; | |
4156 | ||
4157 | if (NILP (frame)) | |
4158 | frame = selected_frame; | |
4159 | CHECK_LIVE_FRAME (frame); | |
4160 | f = XFRAME (frame); | |
4161 | list = Qnil; | |
4162 | for (driver_list = f->font_driver_list; driver_list; | |
4163 | driver_list = driver_list->next) | |
4164 | if (driver_list->driver->list_family) | |
4165 | { | |
4166 | Lisp_Object val = driver_list->driver->list_family (frame); | |
13bf758b | 4167 | Lisp_Object tail = list; |
c2f5bfd6 | 4168 | |
13bf758b CY |
4169 | for (; CONSP (val); val = XCDR (val)) |
4170 | if (NILP (Fmemq (XCAR (val), tail)) | |
4171 | && SYMBOLP (XCAR (val))) | |
4172 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4173 | } |
4174 | return list; | |
4175 | } | |
4176 | ||
4177 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4178 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4179 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4180 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4181 | { |
4182 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4183 | ||
4184 | if (CONSP (val)) | |
4185 | val = XCAR (val); | |
4186 | return val; | |
4187 | } | |
4188 | ||
a7ca3326 | 4189 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4190 | doc: /* Return XLFD name of FONT. |
4191 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4192 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4193 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
56dd2d86 | 4194 | the consecutive wildcards are folded into one. */) |
5842a27b | 4195 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4196 | { |
4197 | char name[256]; | |
4198 | int pixel_size = 0; | |
4199 | ||
35027d0c KH |
4200 | CHECK_FONT (font); |
4201 | ||
4202 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4203 | { |
35027d0c | 4204 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4205 | |
35027d0c KH |
4206 | if (STRINGP (font_name) |
4207 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4208 | { |
4209 | if (NILP (fold_wildcards)) | |
4210 | return font_name; | |
51b59d79 | 4211 | strcpy (name, SSDATA (font_name)); |
d0ab1ebe KH |
4212 | goto done; |
4213 | } | |
35027d0c | 4214 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4215 | } |
c2f5bfd6 KH |
4216 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
4217 | return Qnil; | |
d0ab1ebe KH |
4218 | done: |
4219 | if (! NILP (fold_wildcards)) | |
4220 | { | |
4221 | char *p0 = name, *p1; | |
4222 | ||
4223 | while ((p1 = strstr (p0, "-*-*"))) | |
4224 | { | |
4225 | strcpy (p1, p1 + 2); | |
4226 | p0 = p1; | |
4227 | } | |
4228 | } | |
4229 | ||
c2f5bfd6 KH |
4230 | return build_string (name); |
4231 | } | |
4232 | ||
4233 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
4234 | doc: /* Clear font cache. */) | |
5842a27b | 4235 | (void) |
c2f5bfd6 KH |
4236 | { |
4237 | Lisp_Object list, frame; | |
4238 | ||
4239 | FOR_EACH_FRAME (list, frame) | |
4240 | { | |
4241 | FRAME_PTR f = XFRAME (frame); | |
4242 | struct font_driver_list *driver_list = f->font_driver_list; | |
4243 | ||
4244 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
4245 | if (driver_list->on) |
4246 | { | |
ca4da08a | 4247 | Lisp_Object cache = driver_list->driver->get_cache (f); |
7a6f7fea | 4248 | Lisp_Object val, tmp; |
51c01100 | 4249 | |
ca4da08a | 4250 | val = XCDR (cache); |
43c0454d KH |
4251 | while (! NILP (val) |
4252 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 4253 | val = XCDR (val); |
d0ab1ebe | 4254 | font_assert (! NILP (val)); |
7a6f7fea AS |
4255 | tmp = XCDR (XCAR (val)); |
4256 | if (XINT (XCAR (tmp)) == 0) | |
417a1b10 | 4257 | { |
ca4da08a KH |
4258 | font_clear_cache (f, XCAR (val), driver_list->driver); |
4259 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 4260 | } |
417a1b10 | 4261 | } |
c2f5bfd6 KH |
4262 | } |
4263 | ||
4264 | return Qnil; | |
4265 | } | |
4266 | ||
071132a9 KH |
4267 | \f |
4268 | void | |
971de7fb | 4269 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4270 | { |
071132a9 | 4271 | struct font *font = XFONT_OBJECT (font_object); |
f62ab7c5 EZ |
4272 | unsigned code; |
4273 | /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */ | |
4274 | EMACS_INT ecode = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); | |
071132a9 | 4275 | struct font_metrics metrics; |
c2f5bfd6 | 4276 | |
f62ab7c5 EZ |
4277 | LGLYPH_SET_CODE (glyph, ecode); |
4278 | code = ecode; | |
071132a9 KH |
4279 | font->driver->text_extents (font, &code, 1, &metrics); |
4280 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4281 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4282 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4283 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4284 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4285 | } |
4286 | ||
c2f5bfd6 | 4287 | |
071132a9 KH |
4288 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4289 | doc: /* Shape the glyph-string GSTRING. | |
4290 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4291 | to get the correct visual image of character sequences set in the | |
4292 | header of the glyph-string. | |
1701724c | 4293 | |
071132a9 KH |
4294 | If the shaping was successful, the value is GSTRING itself or a newly |
4295 | created glyph-string. Otherwise, the value is nil. */) | |
5842a27b | 4296 | (Lisp_Object gstring) |
1701724c KH |
4297 | { |
4298 | struct font *font; | |
071132a9 | 4299 | Lisp_Object font_object, n, glyph; |
ebc96716 | 4300 | EMACS_INT i, j, from, to; |
ba3de0e8 | 4301 | |
071132a9 KH |
4302 | if (! composition_gstring_p (gstring)) |
4303 | signal_error ("Invalid glyph-string: ", gstring); | |
4304 | if (! NILP (LGSTRING_ID (gstring))) | |
4305 | return gstring; | |
4306 | font_object = LGSTRING_FONT (gstring); | |
4307 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4308 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4309 | if (! font->driver->shape) |
4310 | return Qnil; | |
4311 | ||
40fb53d6 KH |
4312 | /* Try at most three times with larger gstring each time. */ |
4313 | for (i = 0; i < 3; i++) | |
4314 | { | |
40fb53d6 KH |
4315 | n = font->driver->shape (gstring); |
4316 | if (INTEGERP (n)) | |
4317 | break; | |
071132a9 KH |
4318 | gstring = larger_vector (gstring, |
4319 | ASIZE (gstring) + LGSTRING_GLYPH_LEN (gstring), | |
4320 | Qnil); | |
40fb53d6 | 4321 | } |
071132a9 | 4322 | if (i == 3 || XINT (n) == 0) |
1701724c | 4323 | return Qnil; |
dfe3c90f KH |
4324 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4325 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4326 | |
071132a9 | 4327 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4328 | from = LGLYPH_FROM (glyph); |
4329 | to = LGLYPH_TO (glyph); | |
4330 | for (i = 1, j = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 KH |
4331 | { |
4332 | Lisp_Object this = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 4333 | |
071132a9 KH |
4334 | if (NILP (this)) |
4335 | break; | |
4336 | if (NILP (LGLYPH_ADJUSTMENT (this))) | |
fc3a285e KH |
4337 | { |
4338 | if (j < i - 1) | |
4339 | for (; j < i; j++) | |
4340 | { | |
4341 | glyph = LGSTRING_GLYPH (gstring, j); | |
4342 | LGLYPH_SET_FROM (glyph, from); | |
4343 | LGLYPH_SET_TO (glyph, to); | |
4344 | } | |
4345 | from = LGLYPH_FROM (this); | |
4346 | to = LGLYPH_TO (this); | |
4347 | j = i; | |
4348 | } | |
071132a9 | 4349 | else |
b2937119 | 4350 | { |
fc3a285e KH |
4351 | if (from > LGLYPH_FROM (this)) |
4352 | from = LGLYPH_FROM (this); | |
4353 | if (to < LGLYPH_TO (this)) | |
4354 | to = LGLYPH_TO (this); | |
b2937119 | 4355 | } |
10d16101 | 4356 | } |
fc3a285e KH |
4357 | if (j < i - 1) |
4358 | for (; j < i; j++) | |
4359 | { | |
4360 | glyph = LGSTRING_GLYPH (gstring, j); | |
4361 | LGLYPH_SET_FROM (glyph, from); | |
4362 | LGLYPH_SET_TO (glyph, to); | |
4363 | } | |
071132a9 | 4364 | return composition_gstring_put_cache (gstring, XINT (n)); |
c2f5bfd6 KH |
4365 | } |
4366 | ||
78a2f9cd KH |
4367 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4368 | 2, 2, 0, | |
4369 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4370 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4371 | where | |
c0943d3d | 4372 | VARIATION-SELECTOR is a character code of variation selection |
78a2f9cd KH |
4373 | (#xFE00..#xFE0F or #xE0100..#xE01EF) |
4374 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4375 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4376 | { |
4377 | unsigned variations[256]; | |
4378 | struct font *font; | |
4379 | int i, n; | |
4380 | Lisp_Object val; | |
4381 | ||
4382 | CHECK_FONT_OBJECT (font_object); | |
4383 | CHECK_CHARACTER (character); | |
4384 | font = XFONT_OBJECT (font_object); | |
4385 | if (! font->driver->get_variation_glyphs) | |
4386 | return Qnil; | |
4387 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4388 | if (! n) | |
4389 | return Qnil; | |
4390 | val = Qnil; | |
4391 | for (i = 0; i < 255; i++) | |
4392 | if (variations[i]) | |
4393 | { | |
78a2f9cd | 4394 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); |
be44ca6c | 4395 | Lisp_Object code = INTEGER_TO_CONS (variations[i]); |
78a2f9cd KH |
4396 | val = Fcons (Fcons (make_number (vs), code), val); |
4397 | } | |
4398 | return val; | |
4399 | } | |
4400 | ||
6a3dadd2 KH |
4401 | #if 0 |
4402 | ||
a7ca3326 | 4403 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
733fd013 | 4404 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. |
51c01100 | 4405 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4406 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4407 | where |
4408 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4409 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4410 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4411 | |
4412 | If LANGYS is nil, the default langsys is selected. | |
4413 | ||
51c01100 JB |
4414 | The features are applied in the order they appear in the list. The |
4415 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4416 | list, and the remaining features are ignored. For instance, (vatu |
4417 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4418 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4419 | |
4420 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4421 | the glyph-string GSTRING-IN. |
e80e09b4 | 4422 | |
51c01100 | 4423 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4424 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4425 | this case, the value is the number of produced glyphs. | |
4426 | ||
4427 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4428 | the value is 0. | |
4429 | ||
51c01100 | 4430 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4431 | produced in GSTRING-OUT, and the value is nil. |
4432 | ||
56dd2d86 | 4433 | See the documentation of `composition-get-gstring' for the format of |
e80e09b4 | 4434 | glyph-string. */) |
5842a27b | 4435 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4436 | { |
4437 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4438 | Lisp_Object val; |
4439 | struct font *font; | |
e80e09b4 KH |
4440 | int len, num; |
4441 | ||
733fd013 | 4442 | check_otf_features (otf_features); |
35027d0c KH |
4443 | CHECK_FONT_OBJECT (font_object); |
4444 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4445 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4446 | error ("Font backend %s can't drive OpenType GSUB table", |
4447 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4448 | CHECK_CONS (otf_features); |
4449 | CHECK_SYMBOL (XCAR (otf_features)); | |
4450 | val = XCDR (otf_features); | |
4451 | CHECK_SYMBOL (XCAR (val)); | |
4452 | val = XCDR (otf_features); | |
4453 | if (! NILP (val)) | |
4454 | CHECK_CONS (val); | |
e80e09b4 KH |
4455 | len = check_gstring (gstring_in); |
4456 | CHECK_VECTOR (gstring_out); | |
4457 | CHECK_NATNUM (from); | |
4458 | CHECK_NATNUM (to); | |
4459 | CHECK_NATNUM (index); | |
4460 | ||
4461 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4462 | args_out_of_range_3 (from, to, make_number (len)); | |
4463 | if (XINT (index) >= ASIZE (gstring_out)) | |
4464 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4465 | num = font->driver->otf_drive (font, otf_features, |
4466 | gstring_in, XINT (from), XINT (to), | |
4467 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4468 | if (num < 0) |
4469 | return Qnil; | |
4470 | return make_number (num); | |
4471 | } | |
4472 | ||
a7ca3326 | 4473 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
e80e09b4 KH |
4474 | 3, 3, 0, |
4475 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4476 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4477 | in this format: |
4478 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4479 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4480 | |
4481 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4482 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4483 | character code corresponding to the glyph or nil if there's no | |
4484 | corresponding character. */) | |
5842a27b | 4485 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4486 | { |
4487 | struct font *font; | |
4488 | Lisp_Object gstring_in, gstring_out, g; | |
4489 | Lisp_Object alternates; | |
4490 | int i, num; | |
4491 | ||
4492 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4493 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4494 | error ("Font backend %s can't drive OpenType GSUB table", |
4495 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4496 | CHECK_CHARACTER (character); |
733fd013 | 4497 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4498 | |
4499 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4500 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4501 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4502 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4503 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4504 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4505 | gstring_out = Ffont_make_gstring (font_object, |
4506 | make_number (ASIZE (gstring_out) * 2)); | |
4507 | alternates = Qnil; | |
4508 | for (i = 0; i < num; i++) | |
4509 | { | |
4510 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4511 | int c = LGLYPH_CHAR (g); |
4512 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4513 | |
4514 | alternates = Fcons (Fcons (make_number (code), | |
4515 | c > 0 ? make_number (c) : Qnil), | |
4516 | alternates); | |
4517 | } | |
4518 | return Fnreverse (alternates); | |
4519 | } | |
6a3dadd2 | 4520 | #endif /* 0 */ |
c2f5bfd6 KH |
4521 | |
4522 | #ifdef FONT_DEBUG | |
4523 | ||
4524 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4525 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4526 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 KH |
4527 | { |
4528 | int isize; | |
4529 | ||
4530 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4531 | if (NILP (frame)) |
4532 | frame = selected_frame; | |
4533 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4534 | |
35027d0c KH |
4535 | if (NILP (size)) |
4536 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4537 | else | |
4538 | { | |
4539 | CHECK_NUMBER_OR_FLOAT (size); | |
4540 | if (FLOATP (size)) | |
d03b5cdb | 4541 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), XFRAME (frame)->resy); |
35027d0c KH |
4542 | else |
4543 | isize = XINT (size); | |
4544 | if (isize == 0) | |
4545 | isize = 120; | |
4546 | } | |
c2f5bfd6 KH |
4547 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4548 | } | |
4549 | ||
4550 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4551 | doc: /* Close FONT-OBJECT. */) | |
5842a27b | 4552 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4553 | { |
4554 | CHECK_FONT_OBJECT (font_object); | |
4555 | if (NILP (frame)) | |
4556 | frame = selected_frame; | |
4557 | CHECK_LIVE_FRAME (frame); | |
4558 | font_close_object (XFRAME (frame), font_object); | |
4559 | return Qnil; | |
4560 | } | |
4561 | ||
4562 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4563 | doc: /* Return information about FONT-OBJECT. |
4564 | The value is a vector: | |
4565 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4566 | CAPABILITY ] |
e80e09b4 | 4567 | |
56dd2d86 | 4568 | NAME is the font name, a string (or nil if the font backend doesn't |
e80e09b4 KH |
4569 | provide a name). |
4570 | ||
56dd2d86 | 4571 | FILENAME is the font file name, a string (or nil if the font backend |
e80e09b4 KH |
4572 | doesn't provide a file name). |
4573 | ||
4574 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4575 | ||
027a33c0 | 4576 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4577 | |
4578 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4579 | pixels. |
e80e09b4 | 4580 | |
e0708580 KH |
4581 | CAPABILITY is a list whose first element is a symbol representing the |
4582 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4583 | remaining elements describe the details of the font capability. |
e0708580 KH |
4584 | |
4585 | If the font is OpenType font, the form of the list is | |
4586 | \(opentype GSUB GPOS) | |
4587 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4588 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4589 | lists of the format: | |
4590 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4591 | ||
4592 | If the font is not OpenType font, currently the length of the form is | |
4593 | one. | |
e80e09b4 KH |
4594 | |
4595 | SCRIPT is a symbol representing OpenType script tag. | |
4596 | ||
4597 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4598 | representing the default langsys. | |
4599 | ||
51c01100 | 4600 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4601 | |
51c01100 | 4602 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4603 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4604 | { |
4605 | struct font *font; | |
4606 | Lisp_Object val; | |
4607 | ||
4608 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4609 | ||
4610 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4611 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4612 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4613 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4614 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4615 | ASET (val, 4, make_number (font->ascent)); |
4616 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4617 | ASET (val, 6, make_number (font->space_width)); |
4618 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4619 | if (font->driver->otf_capability) |
e0708580 | 4620 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4621 | return val; |
4622 | } | |
4623 | ||
a7840ffb KH |
4624 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4625 | doc: | |
4626 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4627 | FROM and TO are positions (integers or markers) specifying a region | |
4628 | of the current buffer. | |
4629 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4630 | vector containing the target characters. | |
4631 | ||
4632 | Each element is a vector containing information of a glyph in this format: | |
4633 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4634 | where | |
4635 | FROM is an index numbers of a character the glyph corresponds to. | |
4636 | TO is the same as FROM. | |
4637 | C is the character of the glyph. | |
4638 | CODE is the glyph-code of C in FONT-OBJECT. | |
4639 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4640 | ADJUSTMENT is always nil. | |
4641 | If FONT-OBJECT doesn't have a glyph for a character, | |
4642 | the corresponding element is nil. */) | |
e1ffae3b KH |
4643 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4644 | Lisp_Object object) | |
c2f5bfd6 KH |
4645 | { |
4646 | struct font *font; | |
13a547c6 | 4647 | int i, len; |
a7840ffb KH |
4648 | Lisp_Object *chars, vec; |
4649 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4650 | |
4651 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4652 | if (NILP (object)) |
4653 | { | |
4654 | EMACS_INT charpos, bytepos; | |
4655 | ||
4656 | validate_region (&from, &to); | |
4657 | if (EQ (from, to)) | |
4658 | return Qnil; | |
4659 | len = XFASTINT (to) - XFASTINT (from); | |
4660 | SAFE_ALLOCA_LISP (chars, len); | |
4661 | charpos = XFASTINT (from); | |
4662 | bytepos = CHAR_TO_BYTE (charpos); | |
4663 | for (i = 0; charpos < XFASTINT (to); i++) | |
4664 | { | |
13a547c6 | 4665 | int c; |
a7840ffb KH |
4666 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); |
4667 | chars[i] = make_number (c); | |
4668 | } | |
4669 | } | |
4670 | else if (STRINGP (object)) | |
4671 | { | |
4672 | const unsigned char *p; | |
4673 | ||
4674 | CHECK_NUMBER (from); | |
4675 | CHECK_NUMBER (to); | |
4676 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4677 | || XINT (to) > SCHARS (object)) | |
4678 | args_out_of_range_3 (object, from, to); | |
4679 | if (EQ (from, to)) | |
4680 | return Qnil; | |
4681 | len = XFASTINT (to) - XFASTINT (from); | |
4682 | SAFE_ALLOCA_LISP (chars, len); | |
4683 | p = SDATA (object); | |
4684 | if (STRING_MULTIBYTE (object)) | |
4685 | for (i = 0; i < len; i++) | |
4686 | { | |
13a547c6 | 4687 | int c = STRING_CHAR_ADVANCE (p); |
a7840ffb KH |
4688 | chars[i] = make_number (c); |
4689 | } | |
4690 | else | |
4691 | for (i = 0; i < len; i++) | |
4692 | chars[i] = make_number (p[i]); | |
4693 | } | |
4694 | else | |
4695 | { | |
4696 | CHECK_VECTOR (object); | |
4697 | CHECK_NUMBER (from); | |
4698 | CHECK_NUMBER (to); | |
4699 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4700 | || XINT (to) > ASIZE (object)) | |
4701 | args_out_of_range_3 (object, from, to); | |
4702 | if (EQ (from, to)) | |
4703 | return Qnil; | |
4704 | len = XFASTINT (to) - XFASTINT (from); | |
4705 | for (i = 0; i < len; i++) | |
4706 | { | |
4707 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4708 | CHECK_CHARACTER (elt); | |
4709 | } | |
4710 | chars = &(AREF (object, XFASTINT (from))); | |
4711 | } | |
4712 | ||
c2f5bfd6 KH |
4713 | vec = Fmake_vector (make_number (len), Qnil); |
4714 | for (i = 0; i < len; i++) | |
4715 | { | |
a7840ffb KH |
4716 | Lisp_Object g; |
4717 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 KH |
4718 | unsigned code; |
4719 | struct font_metrics metrics; | |
4720 | ||
78834453 | 4721 | code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4722 | if (code == FONT_INVALID_CODE) |
4723 | continue; | |
a7840ffb KH |
4724 | g = Fmake_vector (make_number (LGLYPH_SIZE), Qnil); |
4725 | LGLYPH_SET_FROM (g, i); | |
4726 | LGLYPH_SET_TO (g, i); | |
4727 | LGLYPH_SET_CHAR (g, c); | |
4728 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4729 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4730 | LGLYPH_SET_WIDTH (g, metrics.width); |
4731 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4732 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4733 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4734 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4735 | ASET (vec, i, g); | |
4736 | } | |
4737 | if (! VECTORP (object)) | |
4738 | SAFE_FREE (); | |
c2f5bfd6 KH |
4739 | return vec; |
4740 | } | |
4741 | ||
ec6fe57c | 4742 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4743 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4744 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4745 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4746 | { |
4747 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4748 | CHECK_FONT (font); |
ec6fe57c KH |
4749 | |
4750 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4751 | } | |
4752 | ||
1701724c | 4753 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4754 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4755 | Optional second arg WINDOW, if non-nil, is a window displaying |
4756 | the current buffer. It defaults to the currently selected window. */) | |
5842a27b | 4757 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 KH |
4758 | { |
4759 | struct window *w; | |
e3ee0340 | 4760 | EMACS_INT pos; |
10d16101 | 4761 | |
1701724c KH |
4762 | if (NILP (string)) |
4763 | { | |
4764 | CHECK_NUMBER_COERCE_MARKER (position); | |
4765 | pos = XINT (position); | |
4766 | if (pos < BEGV || pos >= ZV) | |
4767 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4768 | } |
4769 | else | |
4770 | { | |
1701724c KH |
4771 | CHECK_NUMBER (position); |
4772 | CHECK_STRING (string); | |
4773 | pos = XINT (position); | |
4774 | if (pos < 0 || pos >= SCHARS (string)) | |
4775 | args_out_of_range (string, position); | |
1701724c | 4776 | } |
10d16101 KH |
4777 | if (NILP (window)) |
4778 | window = selected_window; | |
4779 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4780 | w = XWINDOW (window); |
10d16101 | 4781 | |
40fb53d6 | 4782 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4783 | } |
4784 | ||
c2f5bfd6 KH |
4785 | #if 0 |
4786 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4787 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4788 | The value is a number of glyphs drawn. | |
4789 | Type C-l to recover what previously shown. */) | |
5842a27b | 4790 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4791 | { |
4792 | Lisp_Object frame = selected_frame; | |
4793 | FRAME_PTR f = XFRAME (frame); | |
4794 | struct font *font; | |
4795 | struct face *face; | |
4796 | int i, len, width; | |
4797 | unsigned *code; | |
4798 | ||
4799 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4800 | CHECK_STRING (string); | |
4801 | len = SCHARS (string); | |
4802 | code = alloca (sizeof (unsigned) * len); | |
4803 | for (i = 0; i < len; i++) | |
4804 | { | |
4805 | Lisp_Object ch = Faref (string, make_number (i)); | |
4806 | Lisp_Object val; | |
4807 | int c = XINT (ch); | |
4808 | ||
4809 | code[i] = font->driver->encode_char (font, c); | |
4810 | if (code[i] == FONT_INVALID_CODE) | |
4811 | break; | |
4812 | } | |
4813 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4814 | face->fontp = font; | |
4815 | if (font->driver->prepare_face) | |
4816 | font->driver->prepare_face (f, face); | |
4817 | width = font->driver->text_extents (font, code, i, NULL); | |
4818 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4819 | if (font->driver->done_face) | |
4820 | font->driver->done_face (f, face); | |
4821 | face->fontp = NULL; | |
4822 | return make_number (len); | |
4823 | } | |
4824 | #endif | |
4825 | ||
4826 | #endif /* FONT_DEBUG */ | |
4827 | ||
a266686a KH |
4828 | #ifdef HAVE_WINDOW_SYSTEM |
4829 | ||
72606e45 KH |
4830 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4831 | doc: /* Return information about a font named NAME on frame FRAME. | |
4832 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4833 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4834 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4835 | where | |
4836 | OPENED-NAME is the name used for opening the font, | |
4837 | FULL-NAME is the full name of the font, | |
06f19b91 KH |
4838 | SIZE is the pixelsize of the font, |
4839 | HEIGHT is the pixel-height of the font (i.e ascent + descent), | |
72606e45 KH |
4840 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4841 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4842 | how to compose characters. | |
4843 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4844 | (Lisp_Object name, Lisp_Object frame) |
72606e45 KH |
4845 | { |
4846 | FRAME_PTR f; | |
4847 | struct font *font; | |
4848 | Lisp_Object info; | |
4849 | Lisp_Object font_object; | |
4850 | ||
4851 | (*check_window_system_func) (); | |
4852 | ||
4853 | if (! FONTP (name)) | |
4854 | CHECK_STRING (name); | |
4855 | if (NILP (frame)) | |
4856 | frame = selected_frame; | |
4857 | CHECK_LIVE_FRAME (frame); | |
4858 | f = XFRAME (frame); | |
4859 | ||
4860 | if (STRINGP (name)) | |
4861 | { | |
4862 | int fontset = fs_query_fontset (name, 0); | |
4863 | ||
4864 | if (fontset >= 0) | |
4865 | name = fontset_ascii (fontset); | |
51b59d79 | 4866 | font_object = font_open_by_name (f, SSDATA (name)); |
72606e45 KH |
4867 | } |
4868 | else if (FONT_OBJECT_P (name)) | |
4869 | font_object = name; | |
4870 | else if (FONT_ENTITY_P (name)) | |
4871 | font_object = font_open_entity (f, name, 0); | |
4872 | else | |
4873 | { | |
4874 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4875 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4876 | ||
4877 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4878 | } | |
4879 | if (NILP (font_object)) | |
4880 | return Qnil; | |
4881 | font = XFONT_OBJECT (font_object); | |
4882 | ||
4883 | info = Fmake_vector (make_number (7), Qnil); | |
4884 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
06f19b91 | 4885 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_FULLNAME_INDEX); |
72606e45 KH |
4886 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); |
4887 | XVECTOR (info)->contents[3] = make_number (font->height); | |
4888 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
4889 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
4890 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
4891 | ||
4892 | #if 0 | |
4893 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4894 | close it now. Perhaps, we should manage font-objects | |
4895 | by `reference-count'. */ | |
4896 | font_close_object (f, font_object); | |
4897 | #endif | |
4898 | return info; | |
4899 | } | |
a266686a | 4900 | #endif |
72606e45 | 4901 | |
c2f5bfd6 | 4902 | \f |
d0ab1ebe KH |
4903 | #define BUILD_STYLE_TABLE(TBL) \ |
4904 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4905 | ||
4906 | static Lisp_Object | |
971de7fb | 4907 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
4908 | { |
4909 | int i, j; | |
4910 | Lisp_Object table, elt; | |
17ab8f5d | 4911 | |
d0ab1ebe KH |
4912 | table = Fmake_vector (make_number (nelement), Qnil); |
4913 | for (i = 0; i < nelement; i++) | |
4914 | { | |
4915 | for (j = 0; entry[i].names[j]; j++); | |
4916 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4917 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4918 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 4919 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
4920 | ASET (table, i, elt); |
4921 | } | |
4922 | return table; | |
4923 | } | |
4924 | ||
d0818984 KH |
4925 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4926 | If ACTION is not nil, that is added to the log when font_add_log is | |
4927 | called next time. At that time, ACTION is set back to nil. */ | |
4928 | static Lisp_Object Vfont_log_deferred; | |
4929 | ||
4930 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4931 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4932 | opening), ARG is the argument for the action, and RESULT is the | |
4933 | result of the action. */ | |
d0ab1ebe | 4934 | void |
675e2c69 | 4935 | font_add_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe | 4936 | { |
13a547c6 | 4937 | Lisp_Object val; |
d0ab1ebe KH |
4938 | int i; |
4939 | ||
d0ab1ebe KH |
4940 | if (EQ (Vfont_log, Qt)) |
4941 | return; | |
d0818984 KH |
4942 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4943 | { | |
51b59d79 | 4944 | char *str = SSDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4945 | |
4946 | ASET (Vfont_log_deferred, 0, Qnil); | |
4947 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
4948 | AREF (Vfont_log_deferred, 2)); | |
4949 | } | |
4950 | ||
d0ab1ebe | 4951 | if (FONTP (arg)) |
db716644 KH |
4952 | { |
4953 | Lisp_Object tail, elt; | |
4954 | Lisp_Object equalstr = build_string ("="); | |
4955 | ||
4956 | val = Ffont_xlfd_name (arg, Qt); | |
4957 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
4958 | tail = XCDR (tail)) | |
4959 | { | |
4960 | elt = XCAR (tail); | |
49f9c344 KH |
4961 | if (EQ (XCAR (elt), QCscript) |
4962 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4963 | val = concat3 (val, SYMBOL_NAME (QCscript), |
4964 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4965 | else if (EQ (XCAR (elt), QClang) |
4966 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4967 | val = concat3 (val, SYMBOL_NAME (QClang), |
4968 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4969 | else if (EQ (XCAR (elt), QCotf) |
4970 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
4971 | val = concat3 (val, SYMBOL_NAME (QCotf), |
4972 | concat2 (equalstr, | |
4973 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
4974 | } | |
4975 | arg = val; | |
4976 | } | |
72d36834 KH |
4977 | |
4978 | if (CONSP (result) | |
4979 | && VECTORP (XCAR (result)) | |
4980 | && ASIZE (XCAR (result)) > 0 | |
4981 | && FONTP (AREF (XCAR (result), 0))) | |
4982 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 4983 | if (FONTP (result)) |
d26424c5 KH |
4984 | { |
4985 | val = Ffont_xlfd_name (result, Qt); | |
4986 | if (! FONT_SPEC_P (result)) | |
4987 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
4988 | build_string (":"), val); | |
4989 | result = val; | |
4990 | } | |
d0ab1ebe KH |
4991 | else if (CONSP (result)) |
4992 | { | |
13a547c6 | 4993 | Lisp_Object tail; |
d0ab1ebe KH |
4994 | result = Fcopy_sequence (result); |
4995 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
4996 | { | |
4997 | val = XCAR (tail); | |
4998 | if (FONTP (val)) | |
4999 | val = Ffont_xlfd_name (val, Qt); | |
5000 | XSETCAR (tail, val); | |
5001 | } | |
5002 | } | |
5003 | else if (VECTORP (result)) | |
5004 | { | |
5005 | result = Fcopy_sequence (result); | |
5006 | for (i = 0; i < ASIZE (result); i++) | |
5007 | { | |
5008 | val = AREF (result, i); | |
5009 | if (FONTP (val)) | |
5010 | val = Ffont_xlfd_name (val, Qt); | |
5011 | ASET (result, i, val); | |
5012 | } | |
5013 | } | |
5014 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
5015 | } | |
5016 | ||
d0818984 KH |
5017 | /* Record a font-related logging data to be added to Vfont_log when |
5018 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
5019 | as font_add_log. */ | |
5020 | ||
5021 | void | |
675e2c69 | 5022 | font_deferred_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 5023 | { |
652b9560 KH |
5024 | if (EQ (Vfont_log, Qt)) |
5025 | return; | |
d0818984 KH |
5026 | ASET (Vfont_log_deferred, 0, build_string (action)); |
5027 | ASET (Vfont_log_deferred, 1, arg); | |
5028 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 5029 | } |
d0818984 | 5030 | |
c2f5bfd6 | 5031 | void |
971de7fb | 5032 | syms_of_font (void) |
c2f5bfd6 | 5033 | { |
4007dd1c KH |
5034 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
5035 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
5036 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5037 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5038 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5039 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5040 | |
1701724c KH |
5041 | staticpro (&font_charset_alist); |
5042 | font_charset_alist = Qnil; | |
5043 | ||
e0708580 | 5044 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5045 | |
9e1bb909 | 5046 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5047 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5048 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5049 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5050 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5051 | |
071132a9 KH |
5052 | DEFSYM (QCf, "Cf"); |
5053 | ||
c2f5bfd6 | 5054 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5055 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5056 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5057 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5058 | |
5059 | DEFSYM (QCfoundry, ":foundry"); | |
5060 | DEFSYM (QCadstyle, ":adstyle"); | |
5061 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5062 | DEFSYM (QCspacing, ":spacing"); |
5063 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5064 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5065 | DEFSYM (QCavgwidth, ":avgwidth"); |
5066 | DEFSYM (QCfont_entity, ":font-entity"); | |
5067 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5068 | |
ec6fe57c KH |
5069 | DEFSYM (Qc, "c"); |
5070 | DEFSYM (Qm, "m"); | |
5071 | DEFSYM (Qp, "p"); | |
5072 | DEFSYM (Qd, "d"); | |
5073 | ||
cf702558 CY |
5074 | DEFSYM (Qja, "ja"); |
5075 | DEFSYM (Qko, "ko"); | |
5076 | ||
42707278 JD |
5077 | DEFSYM (QCuser_spec, "user-spec"); |
5078 | ||
c2f5bfd6 KH |
5079 | staticpro (&null_vector); |
5080 | null_vector = Fmake_vector (make_number (0), Qnil); | |
5081 | ||
5082 | staticpro (&scratch_font_spec); | |
5083 | scratch_font_spec = Ffont_spec (0, NULL); | |
5084 | staticpro (&scratch_font_prefer); | |
5085 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5086 | ||
d0818984 KH |
5087 | staticpro (&Vfont_log_deferred); |
5088 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5089 | ||
6a3dadd2 | 5090 | #if 0 |
733fd013 KH |
5091 | #ifdef HAVE_LIBOTF |
5092 | staticpro (&otf_list); | |
5093 | otf_list = Qnil; | |
6a3dadd2 KH |
5094 | #endif /* HAVE_LIBOTF */ |
5095 | #endif /* 0 */ | |
733fd013 | 5096 | |
c2f5bfd6 KH |
5097 | defsubr (&Sfontp); |
5098 | defsubr (&Sfont_spec); | |
5099 | defsubr (&Sfont_get); | |
51cf11be | 5100 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5101 | defsubr (&Sfont_face_attributes); |
51cf11be | 5102 | #endif |
c2f5bfd6 KH |
5103 | defsubr (&Sfont_put); |
5104 | defsubr (&Slist_fonts); | |
35027d0c | 5105 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5106 | defsubr (&Sfind_font); |
5107 | defsubr (&Sfont_xlfd_name); | |
5108 | defsubr (&Sclear_font_cache); | |
071132a9 | 5109 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5110 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5111 | #if 0 |
733fd013 | 5112 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5113 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5114 | #endif /* 0 */ |
c2f5bfd6 KH |
5115 | |
5116 | #ifdef FONT_DEBUG | |
5117 | defsubr (&Sopen_font); | |
5118 | defsubr (&Sclose_font); | |
5119 | defsubr (&Squery_font); | |
a7840ffb | 5120 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5121 | defsubr (&Sfont_match_p); |
10d16101 | 5122 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5123 | #if 0 |
5124 | defsubr (&Sdraw_string); | |
5125 | #endif | |
5126 | #endif /* FONT_DEBUG */ | |
a266686a | 5127 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5128 | defsubr (&Sfont_info); |
a266686a | 5129 | #endif |
c2f5bfd6 | 5130 | |
29208e82 | 5131 | DEFVAR_LISP ("font-encoding-alist", Vfont_encoding_alist, |
819e81df KH |
5132 | doc: /* |
5133 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5134 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5135 | where ENCODING is a charset or a char-table, | |
5136 | and REPERTORY is a charset, a char-table, or nil. | |
5137 | ||
027a33c0 | 5138 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5139 | \(REGEXP . ENCODING). |
5140 | ||
5141 | ENCODING is for converting a character to a glyph code of the font. | |
5142 | If ENCODING is a charset, encoding a character by the charset gives | |
5143 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5144 | the table by a character gives the corresponding glyph code. | |
5145 | ||
5146 | REPERTORY specifies a repertory of characters supported by the font. | |
5147 | If REPERTORY is a charset, all characters beloging to the charset are | |
5148 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 5149 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5150 | gets the repertory information by an opened font and ENCODING. */); |
5151 | Vfont_encoding_alist = Qnil; | |
5152 | ||
933ac235 SM |
5153 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5154 | won't have any effect other than disconnect them from the style | |
5155 | table used by the font display code. So we make them read-only, | |
5156 | to avoid this confusing situation. */ | |
5157 | ||
29208e82 | 5158 | DEFVAR_LISP_NOPRO ("font-weight-table", Vfont_weight_table, |
d0ab1ebe KH |
5159 | doc: /* Vector of valid font weight values. |
5160 | Each element has the form: | |
5161 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5162 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5163 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5164 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe | 5165 | |
29208e82 | 5166 | DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table, |
d0ab1ebe | 5167 | doc: /* Vector of font slant symbols vs the corresponding numeric values. |
17ab8f5d | 5168 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5169 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5170 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe | 5171 | |
29208e82 | 5172 | DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table, |
d0ab1ebe | 5173 | doc: /* Alist of font width symbols vs the corresponding numeric values. |
17ab8f5d | 5174 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5175 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5176 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5177 | |
5178 | staticpro (&font_style_table); | |
5179 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
5180 | ASET (font_style_table, 0, Vfont_weight_table); | |
5181 | ASET (font_style_table, 1, Vfont_slant_table); | |
5182 | ASET (font_style_table, 2, Vfont_width_table); | |
5183 | ||
29208e82 | 5184 | DEFVAR_LISP ("font-log", Vfont_log, doc: /* |
d0ab1ebe KH |
5185 | *Logging list of font related actions and results. |
5186 | The value t means to suppress the logging. | |
5187 | The initial value is set to nil if the environment variable | |
5188 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5189 | Vfont_log = Qnil; | |
5190 | ||
819e81df | 5191 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5192 | #ifdef HAVE_FREETYPE |
35027d0c | 5193 | syms_of_ftfont (); |
c2f5bfd6 | 5194 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5195 | syms_of_xfont (); |
5196 | syms_of_ftxfont (); | |
c2f5bfd6 | 5197 | #ifdef HAVE_XFT |
35027d0c | 5198 | syms_of_xftfont (); |
c2f5bfd6 KH |
5199 | #endif /* HAVE_XFT */ |
5200 | #endif /* HAVE_X_WINDOWS */ | |
5201 | #else /* not HAVE_FREETYPE */ | |
5202 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5203 | syms_of_xfont (); |
c2f5bfd6 KH |
5204 | #endif /* HAVE_X_WINDOWS */ |
5205 | #endif /* not HAVE_FREETYPE */ | |
5206 | #ifdef HAVE_BDFFONT | |
35027d0c | 5207 | syms_of_bdffont (); |
c2f5bfd6 KH |
5208 | #endif /* HAVE_BDFFONT */ |
5209 | #ifdef WINDOWSNT | |
35027d0c | 5210 | syms_of_w32font (); |
c2f5bfd6 | 5211 | #endif /* WINDOWSNT */ |
edfda783 AR |
5212 | #ifdef HAVE_NS |
5213 | syms_of_nsfont (); | |
5214 | #endif /* HAVE_NS */ | |
819e81df | 5215 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5216 | } |
885b7d09 | 5217 | |
652b9560 | 5218 | void |
971de7fb | 5219 | init_font (void) |
652b9560 KH |
5220 | { |
5221 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5222 | } |