Commit | Line | Data |
---|---|---|
c2f5bfd6 | 1 | /* font.c -- "Font" primitives. |
e9bffc61 | 2 | |
95df8112 GM |
3 | Copyright (C) 2006-2011 Free Software Foundation, Inc. |
4 | Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 | |
5 | National Institute of Advanced Industrial Science and Technology (AIST) | |
6 | Registration Number H13PRO009 | |
c2f5bfd6 KH |
7 | |
8 | This file is part of GNU Emacs. | |
9 | ||
9ec0b715 | 10 | GNU Emacs is free software: you can redistribute it and/or modify |
c2f5bfd6 | 11 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. | |
c2f5bfd6 KH |
14 | |
15 | GNU Emacs is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 21 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
c2f5bfd6 KH |
22 | |
23 | #include <config.h> | |
24 | #include <stdio.h> | |
c2f5bfd6 | 25 | #include <ctype.h> |
d7306fe6 | 26 | #include <setjmp.h> |
c2f5bfd6 KH |
27 | |
28 | #include "lisp.h" | |
29 | #include "buffer.h" | |
30 | #include "frame.h" | |
10d16101 | 31 | #include "window.h" |
c2f5bfd6 KH |
32 | #include "dispextern.h" |
33 | #include "charset.h" | |
34 | #include "character.h" | |
35 | #include "composite.h" | |
36 | #include "fontset.h" | |
37 | #include "font.h" | |
38 | ||
43c0454d KH |
39 | #ifdef HAVE_X_WINDOWS |
40 | #include "xterm.h" | |
41 | #endif /* HAVE_X_WINDOWS */ | |
42 | ||
43 | #ifdef HAVE_NTGUI | |
44 | #include "w32term.h" | |
45 | #endif /* HAVE_NTGUI */ | |
46 | ||
edfda783 AR |
47 | #ifdef HAVE_NS |
48 | #include "nsterm.h" | |
49 | #endif /* HAVE_NS */ | |
50 | ||
7990b61a | 51 | Lisp_Object Qopentype; |
e0708580 | 52 | |
35027d0c | 53 | /* Important character set strings. */ |
9e1bb909 | 54 | Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip; |
1bb1d99b | 55 | |
edfda783 | 56 | #define DEFAULT_ENCODING Qiso8859_1 |
edfda783 | 57 | |
071132a9 KH |
58 | /* Unicode category `Cf'. */ |
59 | static Lisp_Object QCf; | |
60 | ||
c2f5bfd6 KH |
61 | /* Special vector of zero length. This is repeatedly used by (struct |
62 | font_driver *)->list when a specified font is not found. */ | |
35027d0c | 63 | static Lisp_Object null_vector; |
c2f5bfd6 | 64 | |
d0ab1ebe | 65 | /* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */ |
c2f5bfd6 KH |
66 | static Lisp_Object font_style_table; |
67 | ||
d0ab1ebe KH |
68 | /* Structure used for tables mapping weight, slant, and width numeric |
69 | values and their names. */ | |
70 | ||
71 | struct table_entry | |
72 | { | |
73 | int numeric; | |
74 | /* The first one is a valid name as a face attribute. | |
75 | The second one (if any) is a typical name in XLFD field. */ | |
5e2327cf | 76 | const char *names[5]; |
d0ab1ebe KH |
77 | }; |
78 | ||
79 | /* Table of weight numeric values and their names. This table must be | |
80 | sorted by numeric values in ascending order. */ | |
81 | ||
5e2327cf | 82 | static const struct table_entry weight_table[] = |
d0ab1ebe KH |
83 | { |
84 | { 0, { "thin" }}, | |
85 | { 20, { "ultra-light", "ultralight" }}, | |
86 | { 40, { "extra-light", "extralight" }}, | |
87 | { 50, { "light" }}, | |
88 | { 75, { "semi-light", "semilight", "demilight", "book" }}, | |
c2694a06 | 89 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
90 | { 180, { "semi-bold", "semibold", "demibold", "demi" }}, |
91 | { 200, { "bold" }}, | |
92 | { 205, { "extra-bold", "extrabold" }}, | |
93 | { 210, { "ultra-bold", "ultrabold", "black" }} | |
94 | }; | |
95 | ||
96 | /* Table of slant numeric values and their names. This table must be | |
97 | sorted by numeric values in ascending order. */ | |
98 | ||
5e2327cf | 99 | static const struct table_entry slant_table[] = |
d0ab1ebe KH |
100 | { |
101 | { 0, { "reverse-oblique", "ro" }}, | |
102 | { 10, { "reverse-italic", "ri" }}, | |
c2694a06 | 103 | { 100, { "normal", "r", "unspecified" }}, |
d0ab1ebe KH |
104 | { 200, { "italic" ,"i", "ot" }}, |
105 | { 210, { "oblique", "o" }} | |
106 | }; | |
107 | ||
108 | /* Table of width numeric values and their names. This table must be | |
109 | sorted by numeric values in ascending order. */ | |
110 | ||
5e2327cf | 111 | static const struct table_entry width_table[] = |
d0ab1ebe KH |
112 | { |
113 | { 50, { "ultra-condensed", "ultracondensed" }}, | |
114 | { 63, { "extra-condensed", "extracondensed" }}, | |
115 | { 75, { "condensed", "compressed", "narrow" }}, | |
116 | { 87, { "semi-condensed", "semicondensed", "demicondensed" }}, | |
c2694a06 | 117 | { 100, { "normal", "medium", "regular", "unspecified" }}, |
d0ab1ebe KH |
118 | { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }}, |
119 | { 125, { "expanded" }}, | |
120 | { 150, { "extra-expanded", "extraexpanded" }}, | |
121 | { 200, { "ultra-expanded", "ultraexpanded", "wide" }} | |
122 | }; | |
123 | ||
2f7c71a1 AS |
124 | Lisp_Object QCfoundry; |
125 | static Lisp_Object QCadstyle, QCregistry; | |
c2f5bfd6 | 126 | /* Symbols representing keys of font extra info. */ |
35027d0c | 127 | Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth; |
955cbe7b PE |
128 | Lisp_Object QCantialias, QCfont_entity; |
129 | static Lisp_Object QCfc_unknown_spec; | |
ec6fe57c | 130 | /* Symbols representing values of font spacing property. */ |
955cbe7b PE |
131 | static Lisp_Object Qc, Qm, Qd; |
132 | Lisp_Object Qp; | |
cf702558 CY |
133 | /* Special ADSTYLE properties to avoid fonts used for Latin |
134 | characters; used in xfont.c and ftfont.c. */ | |
135 | Lisp_Object Qja, Qko; | |
c2f5bfd6 | 136 | |
955cbe7b | 137 | static Lisp_Object QCuser_spec; |
42707278 | 138 | |
56dd2d86 | 139 | /* Alist of font registry symbols and the corresponding charset |
1701724c KH |
140 | information. The information is retrieved from |
141 | Vfont_encoding_alist on demand. | |
142 | ||
143 | Eash element has the form: | |
144 | (REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID)) | |
145 | or | |
146 | (REGISTRY . nil) | |
147 | ||
148 | In the former form, ENCODING-CHARSET-ID is an ID of a charset that | |
149 | encodes a character code to a glyph code of a font, and | |
150 | REPERTORY-CHARSET-ID is an ID of a charset that tells if a | |
151 | character is supported by a font. | |
152 | ||
153 | The latter form means that the information for REGISTRY couldn't be | |
154 | retrieved. */ | |
155 | static Lisp_Object font_charset_alist; | |
156 | ||
f697fff0 KH |
157 | /* List of all font drivers. Each font-backend (XXXfont.c) calls |
158 | register_font_driver in syms_of_XXXfont to register its font-driver | |
c2f5bfd6 KH |
159 | here. */ |
160 | static struct font_driver_list *font_driver_list; | |
161 | ||
35027d0c KH |
162 | \f |
163 | ||
164 | /* Creaters of font-related Lisp object. */ | |
165 | ||
2f7c71a1 | 166 | static Lisp_Object |
971de7fb | 167 | font_make_spec (void) |
35027d0c KH |
168 | { |
169 | Lisp_Object font_spec; | |
170 | struct font_spec *spec | |
171 | = ((struct font_spec *) | |
172 | allocate_pseudovector (VECSIZE (struct font_spec), | |
173 | FONT_SPEC_MAX, PVEC_FONT)); | |
174 | XSETFONT (font_spec, spec); | |
175 | return font_spec; | |
176 | } | |
177 | ||
178 | Lisp_Object | |
971de7fb | 179 | font_make_entity (void) |
35027d0c KH |
180 | { |
181 | Lisp_Object font_entity; | |
182 | struct font_entity *entity | |
183 | = ((struct font_entity *) | |
184 | allocate_pseudovector (VECSIZE (struct font_entity), | |
185 | FONT_ENTITY_MAX, PVEC_FONT)); | |
186 | XSETFONT (font_entity, entity); | |
187 | return font_entity; | |
188 | } | |
189 | ||
51c13510 KH |
190 | /* Create a font-object whose structure size is SIZE. If ENTITY is |
191 | not nil, copy properties from ENTITY to the font-object. If | |
192 | PIXELSIZE is positive, set the `size' property to PIXELSIZE. */ | |
35027d0c | 193 | Lisp_Object |
971de7fb | 194 | font_make_object (int size, Lisp_Object entity, int pixelsize) |
35027d0c KH |
195 | { |
196 | Lisp_Object font_object; | |
197 | struct font *font | |
198 | = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT); | |
51c13510 KH |
199 | int i; |
200 | ||
35027d0c KH |
201 | XSETFONT (font_object, font); |
202 | ||
51c13510 KH |
203 | if (! NILP (entity)) |
204 | { | |
205 | for (i = 1; i < FONT_SPEC_MAX; i++) | |
206 | font->props[i] = AREF (entity, i); | |
207 | if (! NILP (AREF (entity, FONT_EXTRA_INDEX))) | |
208 | font->props[FONT_EXTRA_INDEX] | |
581e51e8 | 209 | = Fcopy_alist (AREF (entity, FONT_EXTRA_INDEX)); |
51c13510 KH |
210 | } |
211 | if (size > 0) | |
212 | font->props[FONT_SIZE_INDEX] = make_number (pixelsize); | |
35027d0c KH |
213 | return font_object; |
214 | } | |
215 | ||
216 | \f | |
217 | ||
f57e2426 J |
218 | static int font_pixel_size (FRAME_PTR f, Lisp_Object); |
219 | static Lisp_Object font_open_entity (FRAME_PTR, Lisp_Object, int); | |
220 | static Lisp_Object font_matching_entity (FRAME_PTR, Lisp_Object *, | |
221 | Lisp_Object); | |
2f7c71a1 | 222 | static unsigned font_encode_char (Lisp_Object, int); |
c2f5bfd6 KH |
223 | |
224 | /* Number of registered font drivers. */ | |
225 | static int num_font_drivers; | |
226 | ||
35027d0c KH |
227 | |
228 | /* Return a Lispy value of a font property value at STR and LEN bytes. | |
56dd2d86 EZ |
229 | If STR is "*", return nil. |
230 | If FORCE_SYMBOL is zero and all characters in STR are digits, | |
231 | return an integer. Otherwise, return a symbol interned from | |
2f286d4f | 232 | STR. */ |
35027d0c KH |
233 | |
234 | Lisp_Object | |
ccd6111c | 235 | font_intern_prop (const char *str, ptrdiff_t len, int force_symbol) |
35027d0c | 236 | { |
ccd6111c | 237 | ptrdiff_t i; |
d0ab1ebe | 238 | Lisp_Object tem; |
35027d0c | 239 | Lisp_Object obarray; |
14162469 | 240 | EMACS_INT nbytes, nchars; |
35027d0c KH |
241 | |
242 | if (len == 1 && *str == '*') | |
243 | return Qnil; | |
da3f12b2 | 244 | if (!force_symbol && 0 < len && '0' <= *str && *str <= '9') |
35027d0c KH |
245 | { |
246 | for (i = 1; i < len; i++) | |
da3f12b2 | 247 | if (! ('0' <= str[i] && str[i] <= '9')) |
35027d0c KH |
248 | break; |
249 | if (i == len) | |
ccd6111c | 250 | { |
da3f12b2 PE |
251 | EMACS_INT n; |
252 | ||
253 | i = 0; | |
254 | for (n = 0; (n += str[i++] - '0') <= MOST_POSITIVE_FIXNUM; n *= 10) | |
255 | { | |
256 | if (i == len) | |
257 | return make_number (n); | |
258 | if (MOST_POSITIVE_FIXNUM / 10 < n) | |
259 | break; | |
260 | } | |
261 | ||
262 | xsignal1 (Qoverflow_error, make_string (str, len)); | |
ccd6111c | 263 | } |
35027d0c KH |
264 | } |
265 | ||
545312c2 | 266 | /* The following code is copied from the function intern (in |
56dd2d86 | 267 | lread.c), and modified to suit our purpose. */ |
35027d0c | 268 | obarray = Vobarray; |
77b37c05 | 269 | if (!VECTORP (obarray) || ASIZE (obarray) == 0) |
35027d0c | 270 | obarray = check_obarray (obarray); |
72d36834 | 271 | parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes); |
545312c2 KH |
272 | if (len == nchars || len != nbytes) |
273 | /* CONTENTS contains no multibyte sequences or contains an invalid | |
274 | multibyte sequence. We'll make a unibyte string. */ | |
275 | tem = oblookup (obarray, str, len, len); | |
276 | else | |
277 | tem = oblookup (obarray, str, nchars, len); | |
35027d0c KH |
278 | if (SYMBOLP (tem)) |
279 | return tem; | |
545312c2 KH |
280 | if (len == nchars || len != nbytes) |
281 | tem = make_unibyte_string (str, len); | |
282 | else | |
283 | tem = make_multibyte_string (str, nchars, len); | |
284 | return Fintern (tem, obarray); | |
35027d0c KH |
285 | } |
286 | ||
9331887d | 287 | /* Return a pixel size of font-spec SPEC on frame F. */ |
ec6fe57c | 288 | |
9331887d | 289 | static int |
971de7fb | 290 | font_pixel_size (FRAME_PTR f, Lisp_Object spec) |
9331887d | 291 | { |
819e81df | 292 | #ifdef HAVE_WINDOW_SYSTEM |
9331887d KH |
293 | Lisp_Object size = AREF (spec, FONT_SIZE_INDEX); |
294 | double point_size; | |
35027d0c | 295 | int dpi, pixel_size; |
d0ab1ebe | 296 | Lisp_Object val; |
51c01100 | 297 | |
9331887d KH |
298 | if (INTEGERP (size)) |
299 | return XINT (size); | |
300 | if (NILP (size)) | |
819e81df | 301 | return 0; |
d0ab1ebe | 302 | font_assert (FLOATP (size)); |
9331887d | 303 | point_size = XFLOAT_DATA (size); |
35027d0c KH |
304 | val = AREF (spec, FONT_DPI_INDEX); |
305 | if (INTEGERP (val)) | |
17e28f6d | 306 | dpi = XINT (val); |
9331887d KH |
307 | else |
308 | dpi = f->resy; | |
309 | pixel_size = POINT_TO_PIXEL (point_size, dpi); | |
310 | return pixel_size; | |
819e81df KH |
311 | #else |
312 | return 1; | |
313 | #endif | |
9331887d KH |
314 | } |
315 | ||
c2f5bfd6 | 316 | |
35027d0c KH |
317 | /* Return a value of PROP's VAL (symbol or integer) to be stored in a |
318 | font vector. If VAL is not valid (i.e. not registered in | |
319 | font_style_table), return -1 if NOERROR is zero, and return a | |
320 | proper index if NOERROR is nonzero. In that case, register VAL in | |
56dd2d86 | 321 | font_style_table if VAL is a symbol, and return the closest index if |
35027d0c | 322 | VAL is an integer. */ |
c2f5bfd6 | 323 | |
35027d0c | 324 | int |
971de7fb | 325 | font_style_to_value (enum font_property_index prop, Lisp_Object val, int noerror) |
c2f5bfd6 | 326 | { |
35027d0c KH |
327 | Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); |
328 | int len = ASIZE (table); | |
c2f5bfd6 | 329 | |
35027d0c | 330 | if (SYMBOLP (val)) |
c2f5bfd6 | 331 | { |
13a547c6 | 332 | int i, j; |
25a48bd0 | 333 | char *s; |
35027d0c KH |
334 | Lisp_Object args[2], elt; |
335 | ||
336 | /* At first try exact match. */ | |
337 | for (i = 0; i < len; i++) | |
d0ab1ebe KH |
338 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
339 | if (EQ (val, AREF (AREF (table, i), j))) | |
340 | return ((XINT (AREF (AREF (table, i), 0)) << 8) | |
341 | | (i << 4) | (j - 1)); | |
35027d0c | 342 | /* Try also with case-folding match. */ |
25a48bd0 | 343 | s = SSDATA (SYMBOL_NAME (val)); |
35027d0c | 344 | for (i = 0; i < len; i++) |
d0ab1ebe KH |
345 | for (j = 1; j < ASIZE (AREF (table, i)); j++) |
346 | { | |
347 | elt = AREF (AREF (table, i), j); | |
25a48bd0 | 348 | if (xstrcasecmp (s, SSDATA (SYMBOL_NAME (elt))) == 0) |
d0ab1ebe KH |
349 | return ((XINT (AREF (AREF (table, i), 0)) << 8) |
350 | | (i << 4) | (j - 1)); | |
351 | } | |
35027d0c KH |
352 | if (! noerror) |
353 | return -1; | |
354 | if (len == 255) | |
355 | abort (); | |
c2694a06 | 356 | elt = Fmake_vector (make_number (2), make_number (100)); |
d0ab1ebe | 357 | ASET (elt, 1, val); |
35027d0c | 358 | args[0] = table; |
d0ab1ebe | 359 | args[1] = Fmake_vector (make_number (1), elt); |
35027d0c | 360 | ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args)); |
c2694a06 | 361 | return (100 << 8) | (i << 4); |
c2f5bfd6 | 362 | } |
35027d0c KH |
363 | else |
364 | { | |
d0ab1ebe | 365 | int i, last_n; |
35027d0c | 366 | int numeric = XINT (val); |
c2f5bfd6 | 367 | |
d0ab1ebe | 368 | for (i = 0, last_n = -1; i < len; i++) |
35027d0c | 369 | { |
d0ab1ebe | 370 | int n = XINT (AREF (AREF (table, i), 0)); |
c2f5bfd6 | 371 | |
35027d0c | 372 | if (numeric == n) |
d0ab1ebe | 373 | return (n << 8) | (i << 4); |
35027d0c KH |
374 | if (numeric < n) |
375 | { | |
376 | if (! noerror) | |
377 | return -1; | |
d0ab1ebe KH |
378 | return ((i == 0 || n - numeric < numeric - last_n) |
379 | ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4))); | |
35027d0c | 380 | } |
35027d0c | 381 | last_n = n; |
35027d0c KH |
382 | } |
383 | if (! noerror) | |
384 | return -1; | |
d0ab1ebe | 385 | return ((last_n << 8) | ((i - 1) << 4)); |
35027d0c KH |
386 | } |
387 | } | |
c2f5bfd6 KH |
388 | |
389 | Lisp_Object | |
971de7fb | 390 | font_style_symbolic (Lisp_Object font, enum font_property_index prop, int for_face) |
c2f5bfd6 | 391 | { |
3ef8c1b4 | 392 | Lisp_Object val = AREF (font, prop); |
d0ab1ebe KH |
393 | Lisp_Object table, elt; |
394 | int i; | |
c2f5bfd6 | 395 | |
35027d0c KH |
396 | if (NILP (val)) |
397 | return Qnil; | |
398 | table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX); | |
d0ab1ebe KH |
399 | i = XINT (val) & 0xFF; |
400 | font_assert (((i >> 4) & 0xF) < ASIZE (table)); | |
401 | elt = AREF (table, ((i >> 4) & 0xF)); | |
402 | font_assert ((i & 0xF) + 1 < ASIZE (elt)); | |
ba3de0e8 | 403 | return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1)); |
6fe9826d JR |
404 | } |
405 | ||
819e81df KH |
406 | /* Return ENCODING or a cons of ENCODING and REPERTORY of the font |
407 | FONTNAME. ENCODING is a charset symbol that specifies the encoding | |
408 | of the font. REPERTORY is a charset symbol or nil. */ | |
409 | ||
410 | Lisp_Object | |
971de7fb | 411 | find_font_encoding (Lisp_Object fontname) |
819e81df KH |
412 | { |
413 | Lisp_Object tail, elt; | |
414 | ||
415 | for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) | |
416 | { | |
417 | elt = XCAR (tail); | |
418 | if (CONSP (elt) | |
419 | && STRINGP (XCAR (elt)) | |
420 | && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 | |
421 | && (SYMBOLP (XCDR (elt)) | |
422 | ? CHARSETP (XCDR (elt)) | |
423 | : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) | |
424 | return (XCDR (elt)); | |
425 | } | |
182ba28c | 426 | return Qnil; |
819e81df KH |
427 | } |
428 | ||
1701724c KH |
429 | /* Return encoding charset and repertory charset for REGISTRY in |
430 | ENCODING and REPERTORY correspondingly. If correct information for | |
431 | REGISTRY is available, return 0. Otherwise return -1. */ | |
432 | ||
433 | int | |
971de7fb | 434 | font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory) |
1701724c KH |
435 | { |
436 | Lisp_Object val; | |
437 | int encoding_id, repertory_id; | |
438 | ||
35027d0c | 439 | val = Fassoc_string (registry, font_charset_alist, Qt); |
1701724c KH |
440 | if (! NILP (val)) |
441 | { | |
442 | val = XCDR (val); | |
443 | if (NILP (val)) | |
444 | return -1; | |
445 | encoding_id = XINT (XCAR (val)); | |
446 | repertory_id = XINT (XCDR (val)); | |
447 | } | |
448 | else | |
449 | { | |
450 | val = find_font_encoding (SYMBOL_NAME (registry)); | |
451 | if (SYMBOLP (val) && CHARSETP (val)) | |
452 | { | |
453 | encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val)); | |
454 | } | |
455 | else if (CONSP (val)) | |
456 | { | |
457 | if (! CHARSETP (XCAR (val))) | |
458 | goto invalid_entry; | |
459 | encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val))); | |
460 | if (NILP (XCDR (val))) | |
461 | repertory_id = -1; | |
462 | else | |
463 | { | |
464 | if (! CHARSETP (XCDR (val))) | |
465 | goto invalid_entry; | |
466 | repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val))); | |
467 | } | |
51c01100 | 468 | } |
1701724c KH |
469 | else |
470 | goto invalid_entry; | |
471 | val = Fcons (make_number (encoding_id), make_number (repertory_id)); | |
472 | font_charset_alist | |
473 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil)); | |
474 | } | |
475 | ||
476 | if (encoding) | |
477 | *encoding = CHARSET_FROM_ID (encoding_id); | |
478 | if (repertory) | |
479 | *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL; | |
480 | return 0; | |
481 | ||
482 | invalid_entry: | |
483 | font_charset_alist | |
484 | = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil)); | |
485 | return -1; | |
486 | } | |
487 | ||
c2f5bfd6 | 488 | \f |
56dd2d86 | 489 | /* Font property value validators. See the comment of |
45eb10fb KH |
490 | font_property_table for the meaning of the arguments. */ |
491 | ||
f57e2426 J |
492 | static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object); |
493 | static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object); | |
494 | static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object); | |
495 | static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object); | |
496 | static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object); | |
497 | static int get_font_prop_index (Lisp_Object); | |
c2f5bfd6 KH |
498 | |
499 | static Lisp_Object | |
971de7fb | 500 | font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
501 | { |
502 | if (STRINGP (val)) | |
35027d0c KH |
503 | val = Fintern (val, Qnil); |
504 | if (! SYMBOLP (val)) | |
c2f5bfd6 | 505 | val = Qerror; |
35027d0c KH |
506 | else if (EQ (prop, QCregistry)) |
507 | val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil); | |
c2f5bfd6 KH |
508 | return val; |
509 | } | |
510 | ||
35027d0c | 511 | |
c2f5bfd6 | 512 | static Lisp_Object |
971de7fb | 513 | font_prop_validate_style (Lisp_Object style, Lisp_Object val) |
c2f5bfd6 | 514 | { |
35027d0c KH |
515 | enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX |
516 | : EQ (style, QCslant) ? FONT_SLANT_INDEX | |
517 | : FONT_WIDTH_INDEX); | |
35027d0c | 518 | if (INTEGERP (val)) |
c2f5bfd6 | 519 | { |
13a547c6 | 520 | int n = XINT (val); |
64b900e3 | 521 | if (((n >> 4) & 0xF) |
35027d0c | 522 | >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX))) |
c2f5bfd6 KH |
523 | val = Qerror; |
524 | else | |
525 | { | |
64b900e3 KH |
526 | Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF); |
527 | ||
528 | if ((n & 0xF) + 1 >= ASIZE (elt)) | |
529 | val = Qerror; | |
530 | else if (XINT (AREF (elt, 0)) != (n >> 8)) | |
c2f5bfd6 KH |
531 | val = Qerror; |
532 | } | |
533 | } | |
35027d0c KH |
534 | else if (SYMBOLP (val)) |
535 | { | |
536 | int n = font_style_to_value (prop, val, 0); | |
537 | ||
538 | val = n >= 0 ? make_number (n) : Qerror; | |
539 | } | |
540 | else | |
541 | val = Qerror; | |
c2f5bfd6 KH |
542 | return val; |
543 | } | |
544 | ||
545 | static Lisp_Object | |
971de7fb | 546 | font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 KH |
547 | { |
548 | return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0) | |
549 | ? val : Qerror); | |
550 | } | |
551 | ||
552 | static Lisp_Object | |
971de7fb | 553 | font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val) |
ec6fe57c KH |
554 | { |
555 | if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL)) | |
556 | return val; | |
3692570f KH |
557 | if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1) |
558 | { | |
559 | char spacing = SDATA (SYMBOL_NAME (val))[0]; | |
560 | ||
561 | if (spacing == 'c' || spacing == 'C') | |
562 | return make_number (FONT_SPACING_CHARCELL); | |
563 | if (spacing == 'm' || spacing == 'M') | |
564 | return make_number (FONT_SPACING_MONO); | |
0615d903 | 565 | if (spacing == 'p' || spacing == 'P') |
3692570f KH |
566 | return make_number (FONT_SPACING_PROPORTIONAL); |
567 | if (spacing == 'd' || spacing == 'D') | |
568 | return make_number (FONT_SPACING_DUAL); | |
569 | } | |
ec6fe57c KH |
570 | return Qerror; |
571 | } | |
572 | ||
1701724c | 573 | static Lisp_Object |
971de7fb | 574 | font_prop_validate_otf (Lisp_Object prop, Lisp_Object val) |
1701724c KH |
575 | { |
576 | Lisp_Object tail, tmp; | |
577 | int i; | |
578 | ||
579 | /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]]) | |
580 | GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil | |
581 | GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil */ | |
582 | if (! CONSP (val)) | |
583 | return Qerror; | |
584 | if (! SYMBOLP (XCAR (val))) | |
585 | return Qerror; | |
586 | tail = XCDR (val); | |
587 | if (NILP (tail)) | |
588 | return val; | |
589 | if (! CONSP (tail) || ! SYMBOLP (XCAR (val))) | |
590 | return Qerror; | |
591 | for (i = 0; i < 2; i++) | |
592 | { | |
593 | tail = XCDR (tail); | |
594 | if (NILP (tail)) | |
595 | return val; | |
596 | if (! CONSP (tail)) | |
597 | return Qerror; | |
598 | for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp)) | |
599 | if (! SYMBOLP (XCAR (tmp))) | |
600 | return Qerror; | |
601 | if (! NILP (tmp)) | |
602 | return Qerror; | |
603 | } | |
604 | return val; | |
605 | } | |
606 | ||
56dd2d86 | 607 | /* Structure of known font property keys and validator of the |
ec6fe57c | 608 | values. */ |
04bab72c | 609 | static const struct |
c2f5bfd6 | 610 | { |
ec6fe57c | 611 | /* Pointer to the key symbol. */ |
c2f5bfd6 | 612 | Lisp_Object *key; |
45eb10fb KH |
613 | /* Function to validate PROP's value VAL, or NULL if any value is |
614 | ok. The value is VAL or its regularized value if VAL is valid, | |
615 | and Qerror if not. */ | |
f57e2426 | 616 | Lisp_Object (*validater) (Lisp_Object prop, Lisp_Object val); |
ec6fe57c KH |
617 | } font_property_table[] = |
618 | { { &QCtype, font_prop_validate_symbol }, | |
c2f5bfd6 KH |
619 | { &QCfoundry, font_prop_validate_symbol }, |
620 | { &QCfamily, font_prop_validate_symbol }, | |
621 | { &QCadstyle, font_prop_validate_symbol }, | |
622 | { &QCregistry, font_prop_validate_symbol }, | |
623 | { &QCweight, font_prop_validate_style }, | |
624 | { &QCslant, font_prop_validate_style }, | |
625 | { &QCwidth, font_prop_validate_style }, | |
ec6fe57c | 626 | { &QCsize, font_prop_validate_non_neg }, |
ec6fe57c KH |
627 | { &QCdpi, font_prop_validate_non_neg }, |
628 | { &QCspacing, font_prop_validate_spacing }, | |
35027d0c KH |
629 | { &QCavgwidth, font_prop_validate_non_neg }, |
630 | /* The order of the above entries must match with enum | |
631 | font_property_index. */ | |
632 | { &QClang, font_prop_validate_symbol }, | |
633 | { &QCscript, font_prop_validate_symbol }, | |
634 | { &QCotf, font_prop_validate_otf } | |
c2f5bfd6 KH |
635 | }; |
636 | ||
45eb10fb | 637 | /* Size (number of elements) of the above table. */ |
ec6fe57c KH |
638 | #define FONT_PROPERTY_TABLE_SIZE \ |
639 | ((sizeof font_property_table) / (sizeof *font_property_table)) | |
640 | ||
45eb10fb | 641 | /* Return an index number of font property KEY or -1 if KEY is not an |
35027d0c | 642 | already known property. */ |
45eb10fb | 643 | |
ec6fe57c | 644 | static int |
971de7fb | 645 | get_font_prop_index (Lisp_Object key) |
c2f5bfd6 | 646 | { |
35027d0c KH |
647 | int i; |
648 | ||
649 | for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++) | |
650 | if (EQ (key, *font_property_table[i].key)) | |
651 | return i; | |
ec6fe57c | 652 | return -1; |
c2f5bfd6 KH |
653 | } |
654 | ||
35027d0c KH |
655 | /* Validate the font property. The property key is specified by the |
656 | symbol PROP, or the index IDX (if PROP is nil). If VAL is invalid, | |
657 | signal an error. The value is VAL or the regularized one. */ | |
45eb10fb | 658 | |
c2f5bfd6 | 659 | static Lisp_Object |
971de7fb | 660 | font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 661 | { |
35027d0c | 662 | Lisp_Object validated; |
c2f5bfd6 | 663 | |
1f09f444 KH |
664 | if (NILP (val)) |
665 | return val; | |
35027d0c KH |
666 | if (NILP (prop)) |
667 | prop = *font_property_table[idx].key; | |
668 | else | |
ec6fe57c | 669 | { |
35027d0c KH |
670 | idx = get_font_prop_index (prop); |
671 | if (idx < 0) | |
672 | return val; | |
ec6fe57c | 673 | } |
35027d0c KH |
674 | validated = (font_property_table[idx].validater) (prop, val); |
675 | if (EQ (validated, Qerror)) | |
676 | signal_error ("invalid font property", Fcons (prop, val)); | |
677 | return validated; | |
c2f5bfd6 | 678 | } |
51c01100 | 679 | |
35027d0c KH |
680 | |
681 | /* Store VAL as a value of extra font property PROP in FONT while | |
682 | keeping the sorting order. Don't check the validity of VAL. */ | |
45eb10fb | 683 | |
01dbeb0b | 684 | Lisp_Object |
971de7fb | 685 | font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
9331887d KH |
686 | { |
687 | Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX); | |
ec6fe57c | 688 | Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra)); |
9331887d KH |
689 | |
690 | if (NILP (slot)) | |
691 | { | |
35027d0c KH |
692 | Lisp_Object prev = Qnil; |
693 | ||
694 | while (CONSP (extra) | |
695 | && NILP (Fstring_lessp (prop, XCAR (XCAR (extra))))) | |
696 | prev = extra, extra = XCDR (extra); | |
581e51e8 | 697 | |
ce75f06e | 698 | if (NILP (prev)) |
581e51e8 | 699 | ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 700 | else |
581e51e8 | 701 | XSETCDR (prev, Fcons (Fcons (prop, val), extra)); |
ce75f06e | 702 | |
ec6fe57c | 703 | return val; |
9331887d | 704 | } |
9331887d | 705 | XSETCDR (slot, val); |
483670b5 KH |
706 | if (NILP (val)) |
707 | ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra)); | |
ec6fe57c | 708 | return val; |
9331887d KH |
709 | } |
710 | ||
c2f5bfd6 KH |
711 | \f |
712 | /* Font name parser and unparser */ | |
713 | ||
8ea90aa3 | 714 | static int parse_matrix (const char *); |
f57e2426 | 715 | static int font_expand_wildcards (Lisp_Object *, int); |
09d93395 | 716 | static int font_parse_name (char *, Lisp_Object); |
c2f5bfd6 | 717 | |
ec6fe57c | 718 | /* An enumerator for each field of an XLFD font name. */ |
c2f5bfd6 KH |
719 | enum xlfd_field_index |
720 | { | |
721 | XLFD_FOUNDRY_INDEX, | |
722 | XLFD_FAMILY_INDEX, | |
723 | XLFD_WEIGHT_INDEX, | |
724 | XLFD_SLANT_INDEX, | |
725 | XLFD_SWIDTH_INDEX, | |
726 | XLFD_ADSTYLE_INDEX, | |
4485a28e KH |
727 | XLFD_PIXEL_INDEX, |
728 | XLFD_POINT_INDEX, | |
c2f5bfd6 KH |
729 | XLFD_RESX_INDEX, |
730 | XLFD_RESY_INDEX, | |
731 | XLFD_SPACING_INDEX, | |
732 | XLFD_AVGWIDTH_INDEX, | |
733 | XLFD_REGISTRY_INDEX, | |
734 | XLFD_ENCODING_INDEX, | |
735 | XLFD_LAST_INDEX | |
736 | }; | |
737 | ||
ec6fe57c | 738 | /* An enumerator for mask bit corresponding to each XLFD field. */ |
4485a28e KH |
739 | enum xlfd_field_mask |
740 | { | |
741 | XLFD_FOUNDRY_MASK = 0x0001, | |
742 | XLFD_FAMILY_MASK = 0x0002, | |
743 | XLFD_WEIGHT_MASK = 0x0004, | |
744 | XLFD_SLANT_MASK = 0x0008, | |
745 | XLFD_SWIDTH_MASK = 0x0010, | |
746 | XLFD_ADSTYLE_MASK = 0x0020, | |
747 | XLFD_PIXEL_MASK = 0x0040, | |
748 | XLFD_POINT_MASK = 0x0080, | |
749 | XLFD_RESX_MASK = 0x0100, | |
750 | XLFD_RESY_MASK = 0x0200, | |
751 | XLFD_SPACING_MASK = 0x0400, | |
752 | XLFD_AVGWIDTH_MASK = 0x0800, | |
753 | XLFD_REGISTRY_MASK = 0x1000, | |
754 | XLFD_ENCODING_MASK = 0x2000 | |
755 | }; | |
756 | ||
757 | ||
56dd2d86 | 758 | /* Parse P pointing to the pixel/point size field of the form |
c2f5bfd6 KH |
759 | `[A B C D]' which specifies a transformation matrix: |
760 | ||
761 | A B 0 | |
762 | C D 0 | |
763 | 0 0 1 | |
764 | ||
765 | by which all glyphs of the font are transformed. The spec says | |
766 | that scalar value N for the pixel/point size is equivalent to: | |
767 | A = N * resx/resy, B = C = 0, D = N. | |
768 | ||
769 | Return the scalar value N if the form is valid. Otherwise return | |
770 | -1. */ | |
771 | ||
772 | static int | |
8ea90aa3 | 773 | parse_matrix (const char *p) |
c2f5bfd6 KH |
774 | { |
775 | double matrix[4]; | |
776 | char *end; | |
777 | int i; | |
778 | ||
779 | for (i = 0, p++; i < 4 && *p && *p != ']'; i++) | |
780 | { | |
781 | if (*p == '~') | |
782 | matrix[i] = - strtod (p + 1, &end); | |
783 | else | |
784 | matrix[i] = strtod (p, &end); | |
785 | p = end; | |
786 | } | |
787 | return (i == 4 ? (int) matrix[3] : -1); | |
788 | } | |
789 | ||
4485a28e | 790 | /* Expand a wildcard field in FIELD (the first N fields are filled) to |
56dd2d86 | 791 | multiple fields to fill in all 14 XLFD fields while restricting a |
4485a28e KH |
792 | field position by its contents. */ |
793 | ||
ec6fe57c | 794 | static int |
971de7fb | 795 | font_expand_wildcards (Lisp_Object *field, int n) |
4485a28e KH |
796 | { |
797 | /* Copy of FIELD. */ | |
798 | Lisp_Object tmp[XLFD_LAST_INDEX]; | |
799 | /* Array of information about where this element can go. Nth | |
800 | element is for Nth element of FIELD. */ | |
801 | struct { | |
802 | /* Minimum possible field. */ | |
803 | int from; | |
804 | /* Maxinum possible field. */ | |
805 | int to; | |
806 | /* Bit mask of possible field. Nth bit corresponds to Nth field. */ | |
807 | int mask; | |
808 | } range[XLFD_LAST_INDEX]; | |
809 | int i, j; | |
ec6fe57c | 810 | int range_from, range_to; |
4485a28e KH |
811 | unsigned range_mask; |
812 | ||
813 | #define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \ | |
814 | | XLFD_ADSTYLE_MASK | XLFD_REGISTRY_MASK) | |
815 | #define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK) | |
4485a28e | 816 | #define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \ |
ef18374f | 817 | | XLFD_AVGWIDTH_MASK) |
4485a28e KH |
818 | #define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK) |
819 | ||
820 | /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th | |
821 | field. The value is shifted to left one bit by one in the | |
822 | following loop. */ | |
823 | for (i = 0, range_mask = 0; i <= 14 - n; i++) | |
824 | range_mask = (range_mask << 1) | 1; | |
825 | ||
ec6fe57c KH |
826 | /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a |
827 | position-based retriction for FIELD[I]. */ | |
828 | for (i = 0, range_from = 0, range_to = 14 - n; i < n; | |
829 | i++, range_from++, range_to++, range_mask <<= 1) | |
4485a28e | 830 | { |
4485a28e KH |
831 | Lisp_Object val = field[i]; |
832 | ||
833 | tmp[i] = val; | |
834 | if (NILP (val)) | |
835 | { | |
836 | /* Wildcard. */ | |
837 | range[i].from = range_from; | |
838 | range[i].to = range_to; | |
839 | range[i].mask = range_mask; | |
840 | } | |
841 | else | |
842 | { | |
843 | /* The triplet FROM, TO, and MASK is a value-based | |
844 | retriction for FIELD[I]. */ | |
845 | int from, to; | |
846 | unsigned mask; | |
847 | ||
848 | if (INTEGERP (val)) | |
849 | { | |
850 | int numeric = XINT (val); | |
851 | ||
ef18374f KH |
852 | if (i + 1 == n) |
853 | from = to = XLFD_ENCODING_INDEX, | |
854 | mask = XLFD_ENCODING_MASK; | |
ec6fe57c KH |
855 | else if (numeric == 0) |
856 | from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX, | |
857 | mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK; | |
ef18374f KH |
858 | else if (numeric <= 48) |
859 | from = to = XLFD_PIXEL_INDEX, | |
860 | mask = XLFD_PIXEL_MASK; | |
51c01100 | 861 | else |
ec6fe57c | 862 | from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX, |
4485a28e KH |
863 | mask = XLFD_LARGENUM_MASK; |
864 | } | |
35027d0c | 865 | else if (SBYTES (SYMBOL_NAME (val)) == 0) |
4485a28e KH |
866 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX, |
867 | mask = XLFD_NULL_MASK; | |
868 | else if (i == 0) | |
869 | from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK; | |
870 | else if (i + 1 == n) | |
871 | { | |
872 | Lisp_Object name = SYMBOL_NAME (val); | |
873 | ||
874 | if (SDATA (name)[SBYTES (name) - 1] == '*') | |
875 | from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX, | |
876 | mask = XLFD_REGENC_MASK; | |
877 | else | |
878 | from = to = XLFD_ENCODING_INDEX, | |
879 | mask = XLFD_ENCODING_MASK; | |
880 | } | |
ef18374f KH |
881 | else if (range_from <= XLFD_WEIGHT_INDEX |
882 | && range_to >= XLFD_WEIGHT_INDEX | |
35027d0c | 883 | && FONT_WEIGHT_NAME_NUMERIC (val) >= 0) |
4485a28e | 884 | from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK; |
ef18374f KH |
885 | else if (range_from <= XLFD_SLANT_INDEX |
886 | && range_to >= XLFD_SLANT_INDEX | |
35027d0c | 887 | && FONT_SLANT_NAME_NUMERIC (val) >= 0) |
4485a28e | 888 | from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK; |
ef18374f KH |
889 | else if (range_from <= XLFD_SWIDTH_INDEX |
890 | && range_to >= XLFD_SWIDTH_INDEX | |
35027d0c | 891 | && FONT_WIDTH_NAME_NUMERIC (val) >= 0) |
4485a28e KH |
892 | from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK; |
893 | else | |
894 | { | |
ec6fe57c | 895 | if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd)) |
4485a28e KH |
896 | from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK; |
897 | else | |
898 | from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX, | |
899 | mask = XLFD_SYMBOL_MASK; | |
900 | } | |
901 | ||
902 | /* Merge position-based and value-based restrictions. */ | |
903 | mask &= range_mask; | |
904 | while (from < range_from) | |
905 | mask &= ~(1 << from++); | |
906 | while (from < 14 && ! (mask & (1 << from))) | |
907 | from++; | |
908 | while (to > range_to) | |
909 | mask &= ~(1 << to--); | |
910 | while (to >= 0 && ! (mask & (1 << to))) | |
911 | to--; | |
912 | if (from > to) | |
913 | return -1; | |
914 | range[i].from = from; | |
915 | range[i].to = to; | |
916 | range[i].mask = mask; | |
917 | ||
918 | if (from > range_from || to < range_to) | |
ec6fe57c KH |
919 | { |
920 | /* The range is narrowed by value-based restrictions. | |
921 | Reflect it to the other fields. */ | |
922 | ||
923 | /* Following fields should be after FROM. */ | |
924 | range_from = from; | |
925 | /* Preceding fields should be before TO. */ | |
926 | for (j = i - 1, from--, to--; j >= 0; j--, from--, to--) | |
927 | { | |
928 | /* Check FROM for non-wildcard field. */ | |
929 | if (! NILP (tmp[j]) && range[j].from < from) | |
930 | { | |
931 | while (range[j].from < from) | |
932 | range[j].mask &= ~(1 << range[j].from++); | |
933 | while (from < 14 && ! (range[j].mask & (1 << from))) | |
934 | from++; | |
935 | range[j].from = from; | |
936 | } | |
937 | else | |
938 | from = range[j].from; | |
939 | if (range[j].to > to) | |
940 | { | |
941 | while (range[j].to > to) | |
942 | range[j].mask &= ~(1 << range[j].to--); | |
943 | while (to >= 0 && ! (range[j].mask & (1 << to))) | |
944 | to--; | |
945 | range[j].to = to; | |
946 | } | |
947 | else | |
948 | to = range[j].to; | |
949 | if (from > to) | |
950 | return -1; | |
951 | } | |
952 | } | |
4485a28e KH |
953 | } |
954 | } | |
955 | ||
956 | /* Decide all fileds from restrictions in RANGE. */ | |
957 | for (i = j = 0; i < n ; i++) | |
958 | { | |
959 | if (j < range[i].from) | |
960 | { | |
961 | if (i == 0 || ! NILP (tmp[i - 1])) | |
962 | /* None of TMP[X] corresponds to Jth field. */ | |
963 | return -1; | |
964 | for (; j < range[i].from; j++) | |
965 | field[j] = Qnil; | |
966 | } | |
967 | field[j++] = tmp[i]; | |
968 | } | |
969 | if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX) | |
970 | return -1; | |
971 | for (; j < XLFD_LAST_INDEX; j++) | |
972 | field[j] = Qnil; | |
973 | if (INTEGERP (field[XLFD_ENCODING_INDEX])) | |
974 | field[XLFD_ENCODING_INDEX] | |
975 | = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil); | |
976 | return 0; | |
977 | } | |
978 | ||
43a1d19b | 979 | |
ef18374f | 980 | /* Parse NAME (null terminated) as XLFD and store information in FONT |
9331887d KH |
981 | (font-spec or font-entity). Size property of FONT is set as |
982 | follows: | |
983 | specified XLFD fields FONT property | |
984 | --------------------- ------------- | |
985 | PIXEL_SIZE PIXEL_SIZE (Lisp integer) | |
986 | POINT_SIZE and RESY calculated pixel size (Lisp integer) | |
987 | POINT_SIZE POINT_SIZE/10 (Lisp float) | |
988 | ||
ec6fe57c | 989 | If NAME is successfully parsed, return 0. Otherwise return -1. |
9331887d | 990 | |
ec6fe57c KH |
991 | FONT is usually a font-spec, but when this function is called from |
992 | X font backend driver, it is a font-entity. In that case, NAME is | |
35027d0c | 993 | a fully specified XLFD. */ |
c2f5bfd6 KH |
994 | |
995 | int | |
09d93395 | 996 | font_parse_xlfd (char *name, Lisp_Object font) |
c2f5bfd6 | 997 | { |
b5b8c9e5 | 998 | ptrdiff_t len = strlen (name); |
35027d0c | 999 | int i, j, n; |
cf23b845 | 1000 | char *f[XLFD_LAST_INDEX + 1]; |
c2f5bfd6 | 1001 | Lisp_Object val; |
4485a28e | 1002 | char *p; |
c2f5bfd6 | 1003 | |
e3928081 | 1004 | if (len > 255 || !len) |
c2f5bfd6 KH |
1005 | /* Maximum XLFD name length is 255. */ |
1006 | return -1; | |
ec6fe57c | 1007 | /* Accept "*-.." as a fully specified XLFD. */ |
e3928081 | 1008 | if (name[0] == '*' && (len == 1 || name[1] == '-')) |
ec6fe57c KH |
1009 | i = 1, f[XLFD_FOUNDRY_INDEX] = name; |
1010 | else | |
1011 | i = 0; | |
1012 | for (p = name + i; *p; p++) | |
35027d0c KH |
1013 | if (*p == '-') |
1014 | { | |
1015 | f[i++] = p + 1; | |
1016 | if (i == XLFD_LAST_INDEX) | |
1017 | break; | |
1018 | } | |
1019 | f[i] = name + len; | |
c2f5bfd6 | 1020 | |
2f286d4f KH |
1021 | #define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0) |
1022 | #define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1) | |
4485a28e | 1023 | |
ec6fe57c | 1024 | if (i == XLFD_LAST_INDEX) |
4485a28e | 1025 | { |
35027d0c | 1026 | /* Fully specified XLFD. */ |
ec6fe57c KH |
1027 | int pixel_size; |
1028 | ||
2f286d4f KH |
1029 | ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX)); |
1030 | ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX)); | |
35027d0c KH |
1031 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; |
1032 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
4485a28e | 1033 | { |
2f286d4f | 1034 | val = INTERN_FIELD_SYM (i); |
ec6fe57c | 1035 | if (! NILP (val)) |
4485a28e | 1036 | { |
2f286d4f | 1037 | if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0) |
35027d0c KH |
1038 | return -1; |
1039 | ASET (font, j, make_number (n)); | |
ec6fe57c KH |
1040 | } |
1041 | } | |
2f286d4f | 1042 | ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX)); |
35027d0c KH |
1043 | if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0) |
1044 | ASET (font, FONT_REGISTRY_INDEX, Qnil); | |
1045 | else | |
1046 | ASET (font, FONT_REGISTRY_INDEX, | |
1047 | font_intern_prop (f[XLFD_REGISTRY_INDEX], | |
2f286d4f KH |
1048 | f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX], |
1049 | 1)); | |
ec6fe57c KH |
1050 | p = f[XLFD_PIXEL_INDEX]; |
1051 | if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0) | |
51c01100 | 1052 | ASET (font, FONT_SIZE_INDEX, make_number (pixel_size)); |
ec6fe57c KH |
1053 | else |
1054 | { | |
35027d0c KH |
1055 | val = INTERN_FIELD (XLFD_PIXEL_INDEX); |
1056 | if (INTEGERP (val)) | |
ec6fe57c | 1057 | ASET (font, FONT_SIZE_INDEX, val); |
b57d9029 KH |
1058 | else if (FONT_ENTITY_P (font)) |
1059 | return -1; | |
ec6fe57c KH |
1060 | else |
1061 | { | |
1062 | double point_size = -1; | |
1063 | ||
d0ab1ebe | 1064 | font_assert (FONT_SPEC_P (font)); |
ec6fe57c KH |
1065 | p = f[XLFD_POINT_INDEX]; |
1066 | if (*p == '[') | |
1067 | point_size = parse_matrix (p); | |
1068 | else if (isdigit (*p)) | |
1069 | point_size = atoi (p), point_size /= 10; | |
1070 | if (point_size >= 0) | |
1071 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
4485a28e KH |
1072 | } |
1073 | } | |
ec6fe57c | 1074 | |
087048cd KH |
1075 | val = INTERN_FIELD (XLFD_RESY_INDEX); |
1076 | if (! NILP (val) && ! INTEGERP (val)) | |
1077 | return -1; | |
1078 | ASET (font, FONT_DPI_INDEX, val); | |
35027d0c KH |
1079 | val = INTERN_FIELD (XLFD_SPACING_INDEX); |
1080 | if (! NILP (val)) | |
ec6fe57c | 1081 | { |
35027d0c KH |
1082 | val = font_prop_validate_spacing (QCspacing, val); |
1083 | if (! INTEGERP (val)) | |
1084 | return -1; | |
1085 | ASET (font, FONT_SPACING_INDEX, val); | |
ec6fe57c | 1086 | } |
ec6fe57c KH |
1087 | p = f[XLFD_AVGWIDTH_INDEX]; |
1088 | if (*p == '~') | |
1089 | p++; | |
087048cd KH |
1090 | val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0); |
1091 | if (! NILP (val) && ! INTEGERP (val)) | |
1092 | return -1; | |
1093 | ASET (font, FONT_AVGWIDTH_INDEX, val); | |
4485a28e KH |
1094 | } |
1095 | else | |
c2f5bfd6 | 1096 | { |
4485a28e | 1097 | int wild_card_found = 0; |
ec6fe57c | 1098 | Lisp_Object prop[XLFD_LAST_INDEX]; |
4485a28e | 1099 | |
35027d0c KH |
1100 | if (FONT_ENTITY_P (font)) |
1101 | return -1; | |
ec6fe57c | 1102 | for (j = 0; j < i; j++) |
4485a28e | 1103 | { |
ec6fe57c | 1104 | if (*f[j] == '*') |
4485a28e | 1105 | { |
ec6fe57c KH |
1106 | if (f[j][1] && f[j][1] != '-') |
1107 | return -1; | |
1108 | prop[j] = Qnil; | |
1109 | wild_card_found = 1; | |
1110 | } | |
ec6fe57c | 1111 | else if (j + 1 < i) |
35027d0c | 1112 | prop[j] = INTERN_FIELD (j); |
ec6fe57c | 1113 | else |
2f286d4f | 1114 | prop[j] = font_intern_prop (f[j], f[i] - f[j], 0); |
4485a28e KH |
1115 | } |
1116 | if (! wild_card_found) | |
c2f5bfd6 | 1117 | return -1; |
ec6fe57c | 1118 | if (font_expand_wildcards (prop, i) < 0) |
4485a28e | 1119 | return -1; |
ec6fe57c | 1120 | |
35027d0c KH |
1121 | ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]); |
1122 | ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]); | |
1123 | for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX; | |
1124 | i <= XLFD_SWIDTH_INDEX; i++, j++) | |
ec6fe57c | 1125 | if (! NILP (prop[i])) |
35027d0c KH |
1126 | { |
1127 | if ((n = font_style_to_value (j, prop[i], 1)) < 0) | |
1128 | return -1; | |
1129 | ASET (font, j, make_number (n)); | |
1130 | } | |
1131 | ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]); | |
ec6fe57c KH |
1132 | val = prop[XLFD_REGISTRY_INDEX]; |
1133 | if (NILP (val)) | |
c2f5bfd6 | 1134 | { |
ec6fe57c KH |
1135 | val = prop[XLFD_ENCODING_INDEX]; |
1136 | if (! NILP (val)) | |
35027d0c | 1137 | val = concat2 (build_string ("*-"), SYMBOL_NAME (val)); |
4485a28e | 1138 | } |
ec6fe57c | 1139 | else if (NILP (prop[XLFD_ENCODING_INDEX])) |
35027d0c | 1140 | val = concat2 (SYMBOL_NAME (val), build_string ("-*")); |
4485a28e | 1141 | else |
35027d0c KH |
1142 | val = concat3 (SYMBOL_NAME (val), build_string ("-"), |
1143 | SYMBOL_NAME (prop[XLFD_ENCODING_INDEX])); | |
ec6fe57c | 1144 | if (! NILP (val)) |
35027d0c | 1145 | ASET (font, FONT_REGISTRY_INDEX, Fintern (val, Qnil)); |
ec6fe57c KH |
1146 | |
1147 | if (INTEGERP (prop[XLFD_PIXEL_INDEX])) | |
1148 | ASET (font, FONT_SIZE_INDEX, prop[XLFD_PIXEL_INDEX]); | |
1149 | else if (INTEGERP (prop[XLFD_POINT_INDEX])) | |
4485a28e | 1150 | { |
ec6fe57c | 1151 | double point_size = XINT (prop[XLFD_POINT_INDEX]); |
c2f5bfd6 | 1152 | |
ec6fe57c KH |
1153 | ASET (font, FONT_SIZE_INDEX, make_float (point_size / 10)); |
1154 | } | |
c2f5bfd6 | 1155 | |
35027d0c KH |
1156 | if (INTEGERP (prop[XLFD_RESX_INDEX])) |
1157 | ASET (font, FONT_DPI_INDEX, prop[XLFD_RESY_INDEX]); | |
1158 | if (! NILP (prop[XLFD_SPACING_INDEX])) | |
1159 | { | |
1160 | val = font_prop_validate_spacing (QCspacing, | |
1161 | prop[XLFD_SPACING_INDEX]); | |
1162 | if (! INTEGERP (val)) | |
1163 | return -1; | |
1164 | ASET (font, FONT_SPACING_INDEX, val); | |
1165 | } | |
ec6fe57c | 1166 | if (INTEGERP (prop[XLFD_AVGWIDTH_INDEX])) |
35027d0c | 1167 | ASET (font, FONT_AVGWIDTH_INDEX, prop[XLFD_AVGWIDTH_INDEX]); |
c2f5bfd6 KH |
1168 | } |
1169 | ||
ec6fe57c | 1170 | return 0; |
c2f5bfd6 KH |
1171 | } |
1172 | ||
1173 | /* Store XLFD name of FONT (font-spec or font-entity) in NAME (NBYTES | |
1174 | length), and return the name length. If FONT_SIZE_INDEX of FONT is | |
1175 | 0, use PIXEL_SIZE instead. */ | |
1176 | ||
1177 | int | |
971de7fb | 1178 | font_unparse_xlfd (Lisp_Object font, int pixel_size, char *name, int nbytes) |
c2f5bfd6 | 1179 | { |
e663c700 PE |
1180 | char *p; |
1181 | const char *f[XLFD_REGISTRY_INDEX + 1]; | |
c2f5bfd6 KH |
1182 | Lisp_Object val; |
1183 | int i, j, len = 0; | |
1184 | ||
d0ab1ebe | 1185 | font_assert (FONTP (font)); |
c2f5bfd6 KH |
1186 | |
1187 | for (i = FONT_FOUNDRY_INDEX, j = XLFD_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; | |
1188 | i++, j++) | |
1189 | { | |
1190 | if (i == FONT_ADSTYLE_INDEX) | |
1191 | j = XLFD_ADSTYLE_INDEX; | |
1192 | else if (i == FONT_REGISTRY_INDEX) | |
1193 | j = XLFD_REGISTRY_INDEX; | |
1194 | val = AREF (font, i); | |
1195 | if (NILP (val)) | |
1bb1d99b KH |
1196 | { |
1197 | if (j == XLFD_REGISTRY_INDEX) | |
1198 | f[j] = "*-*", len += 4; | |
1199 | else | |
1200 | f[j] = "*", len += 2; | |
1201 | } | |
c2f5bfd6 KH |
1202 | else |
1203 | { | |
1204 | if (SYMBOLP (val)) | |
1205 | val = SYMBOL_NAME (val); | |
1bb1d99b | 1206 | if (j == XLFD_REGISTRY_INDEX |
51b59d79 | 1207 | && ! strchr (SSDATA (val), '-')) |
1bb1d99b KH |
1208 | { |
1209 | /* Change "jisx0208*" and "jisx0208" to "jisx0208*-*". */ | |
1210 | if (SDATA (val)[SBYTES (val) - 1] == '*') | |
1211 | { | |
e663c700 PE |
1212 | f[j] = p = alloca (SBYTES (val) + 3); |
1213 | sprintf (p, "%s-*", SDATA (val)); | |
1bb1d99b KH |
1214 | len += SBYTES (val) + 3; |
1215 | } | |
1216 | else | |
1217 | { | |
e663c700 PE |
1218 | f[j] = p = alloca (SBYTES (val) + 4); |
1219 | sprintf (p, "%s*-*", SDATA (val)); | |
1bb1d99b KH |
1220 | len += SBYTES (val) + 4; |
1221 | } | |
1222 | } | |
1223 | else | |
51b59d79 | 1224 | f[j] = SSDATA (val), len += SBYTES (val) + 1; |
c2f5bfd6 KH |
1225 | } |
1226 | } | |
1227 | ||
1228 | for (i = FONT_WEIGHT_INDEX, j = XLFD_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; | |
1229 | i++, j++) | |
1230 | { | |
35027d0c | 1231 | val = font_style_symbolic (font, i, 0); |
c2f5bfd6 KH |
1232 | if (NILP (val)) |
1233 | f[j] = "*", len += 2; | |
1234 | else | |
1235 | { | |
35027d0c | 1236 | val = SYMBOL_NAME (val); |
51b59d79 | 1237 | f[j] = SSDATA (val), len += SBYTES (val) + 1; |
c2f5bfd6 KH |
1238 | } |
1239 | } | |
1240 | ||
1241 | val = AREF (font, FONT_SIZE_INDEX); | |
d0ab1ebe | 1242 | font_assert (NUMBERP (val) || NILP (val)); |
c2f5bfd6 KH |
1243 | if (INTEGERP (val)) |
1244 | { | |
35027d0c | 1245 | i = XINT (val); |
81aefea4 SM |
1246 | if (i <= 0) |
1247 | i = pixel_size; | |
c2f5bfd6 | 1248 | if (i > 0) |
81aefea4 | 1249 | { |
e663c700 PE |
1250 | f[XLFD_PIXEL_INDEX] = p = alloca (22); |
1251 | len += sprintf (p, "%d-*", i) + 1; | |
81aefea4 SM |
1252 | } |
1253 | else | |
1254 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; | |
c2f5bfd6 KH |
1255 | } |
1256 | else if (FLOATP (val)) | |
1257 | { | |
35027d0c | 1258 | i = XFLOAT_DATA (val) * 10; |
e663c700 PE |
1259 | f[XLFD_PIXEL_INDEX] = p = alloca (12); |
1260 | len += sprintf (p, "*-%d", i) + 1; | |
c2f5bfd6 KH |
1261 | } |
1262 | else | |
ec6fe57c KH |
1263 | f[XLFD_PIXEL_INDEX] = "*-*", len += 4; |
1264 | ||
35027d0c | 1265 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) |
c2f5bfd6 | 1266 | { |
35027d0c | 1267 | i = XINT (AREF (font, FONT_DPI_INDEX)); |
e663c700 PE |
1268 | f[XLFD_RESX_INDEX] = p = alloca (22); |
1269 | len += sprintf (p, "%d-%d", i, i) + 1; | |
c2f5bfd6 KH |
1270 | } |
1271 | else | |
35027d0c KH |
1272 | f[XLFD_RESX_INDEX] = "*-*", len += 4; |
1273 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) | |
ec6fe57c | 1274 | { |
35027d0c | 1275 | int spacing = XINT (AREF (font, FONT_SPACING_INDEX)); |
ec6fe57c | 1276 | |
35027d0c KH |
1277 | f[XLFD_SPACING_INDEX] = (spacing <= FONT_SPACING_PROPORTIONAL ? "p" |
1278 | : spacing <= FONT_SPACING_DUAL ? "d" | |
1279 | : spacing <= FONT_SPACING_MONO ? "m" | |
1280 | : "c"); | |
1281 | len += 2; | |
ec6fe57c | 1282 | } |
35027d0c KH |
1283 | else |
1284 | f[XLFD_SPACING_INDEX] = "*", len += 2; | |
1285 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1286 | { | |
c2982e87 PE |
1287 | f[XLFD_AVGWIDTH_INDEX] = p = alloca (22); |
1288 | len += sprintf (p, "%"pI"d", | |
1289 | XINT (AREF (font, FONT_AVGWIDTH_INDEX))) + 1; | |
35027d0c KH |
1290 | } |
1291 | else | |
1292 | f[XLFD_AVGWIDTH_INDEX] = "*", len += 2; | |
ec6fe57c | 1293 | len++; /* for terminating '\0'. */ |
c2f5bfd6 KH |
1294 | if (len >= nbytes) |
1295 | return -1; | |
35027d0c | 1296 | return sprintf (name, "-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s-%s", |
c2f5bfd6 KH |
1297 | f[XLFD_FOUNDRY_INDEX], f[XLFD_FAMILY_INDEX], |
1298 | f[XLFD_WEIGHT_INDEX], f[XLFD_SLANT_INDEX], | |
35027d0c KH |
1299 | f[XLFD_SWIDTH_INDEX], f[XLFD_ADSTYLE_INDEX], |
1300 | f[XLFD_PIXEL_INDEX], f[XLFD_RESX_INDEX], | |
1301 | f[XLFD_SPACING_INDEX], f[XLFD_AVGWIDTH_INDEX], | |
1302 | f[XLFD_REGISTRY_INDEX]); | |
c2f5bfd6 KH |
1303 | } |
1304 | ||
8c102d5b CY |
1305 | /* Parse NAME (null terminated) and store information in FONT |
1306 | (font-spec or font-entity). NAME is supplied in either the | |
1307 | Fontconfig or GTK font name format. If NAME is successfully | |
1308 | parsed, return 0. Otherwise return -1. | |
1309 | ||
1310 | The fontconfig format is | |
1311 | ||
1312 | FAMILY[-SIZE][:PROP1[=VAL1][:PROP2[=VAL2]...]] | |
1313 | ||
1314 | The GTK format is | |
1315 | ||
1316 | FAMILY [PROPS...] [SIZE] | |
1317 | ||
1318 | This function tries to guess which format it is. */ | |
ef18374f | 1319 | |
2f7c71a1 | 1320 | static int |
09d93395 | 1321 | font_parse_fcname (char *name, Lisp_Object font) |
ef18374f | 1322 | { |
8c102d5b CY |
1323 | char *p, *q; |
1324 | char *size_beg = NULL, *size_end = NULL; | |
1325 | char *props_beg = NULL, *family_end = NULL; | |
b5b8c9e5 | 1326 | ptrdiff_t len = strlen (name); |
ef18374f | 1327 | |
ec6fe57c KH |
1328 | if (len == 0) |
1329 | return -1; | |
8c102d5b CY |
1330 | |
1331 | for (p = name; *p; p++) | |
ef18374f | 1332 | { |
8c102d5b CY |
1333 | if (*p == '\\' && p[1]) |
1334 | p++; | |
1335 | else if (*p == ':') | |
ef18374f | 1336 | { |
59facb78 | 1337 | props_beg = family_end = p; |
8c102d5b CY |
1338 | break; |
1339 | } | |
1340 | else if (*p == '-') | |
1341 | { | |
b1868a1a | 1342 | int decimal = 0, size_found = 1; |
8c102d5b | 1343 | for (q = p + 1; *q && *q != ':'; q++) |
b1868a1a | 1344 | if (! isdigit(*q)) |
8c102d5b | 1345 | { |
b1868a1a CY |
1346 | if (*q != '.' || decimal) |
1347 | { | |
1348 | size_found = 0; | |
1349 | break; | |
1350 | } | |
1351 | decimal = 1; | |
8c102d5b CY |
1352 | } |
1353 | if (size_found) | |
1354 | { | |
1355 | family_end = p; | |
1356 | size_beg = p + 1; | |
1357 | size_end = q; | |
1358 | break; | |
1359 | } | |
ef18374f | 1360 | } |
ef18374f | 1361 | } |
9331887d | 1362 | |
8c102d5b CY |
1363 | if (family_end) |
1364 | { | |
637fa988 JD |
1365 | Lisp_Object extra_props = Qnil; |
1366 | ||
8c102d5b CY |
1367 | /* A fontconfig name with size and/or property data. */ |
1368 | if (family_end > name) | |
1369 | { | |
1370 | Lisp_Object family; | |
1371 | family = font_intern_prop (name, family_end - name, 1); | |
1372 | ASET (font, FONT_FAMILY_INDEX, family); | |
1373 | } | |
1374 | if (size_beg) | |
1375 | { | |
1376 | double point_size = strtod (size_beg, &size_end); | |
1377 | ASET (font, FONT_SIZE_INDEX, make_float (point_size)); | |
1378 | if (*size_end == ':' && size_end[1]) | |
59facb78 | 1379 | props_beg = size_end; |
8c102d5b CY |
1380 | } |
1381 | if (props_beg) | |
1382 | { | |
d26424c5 | 1383 | /* Now parse ":KEY=VAL" patterns. */ |
59facb78 | 1384 | Lisp_Object val; |
8c102d5b | 1385 | |
59facb78 | 1386 | for (p = props_beg; *p; p = q) |
8c102d5b | 1387 | { |
8c102d5b | 1388 | for (q = p + 1; *q && *q != '=' && *q != ':'; q++); |
8c102d5b CY |
1389 | if (*q != '=') |
1390 | { | |
1391 | /* Must be an enumerated value. */ | |
b5b8c9e5 | 1392 | ptrdiff_t word_len; |
59facb78 CY |
1393 | p = p + 1; |
1394 | word_len = q - p; | |
8c102d5b | 1395 | val = font_intern_prop (p, q - p, 1); |
9277a69d | 1396 | |
4ec88040 AS |
1397 | #define PROP_MATCH(STR) (word_len == strlen (STR) \ |
1398 | && memcmp (p, STR, strlen (STR)) == 0) | |
1399 | ||
1400 | if (PROP_MATCH ("light") | |
1401 | || PROP_MATCH ("medium") | |
1402 | || PROP_MATCH ("demibold") | |
1403 | || PROP_MATCH ("bold") | |
1404 | || PROP_MATCH ("black")) | |
8c102d5b | 1405 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, val); |
4ec88040 AS |
1406 | else if (PROP_MATCH ("roman") |
1407 | || PROP_MATCH ("italic") | |
1408 | || PROP_MATCH ("oblique")) | |
8c102d5b | 1409 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, val); |
4ec88040 | 1410 | else if (PROP_MATCH ("charcell")) |
8c102d5b CY |
1411 | ASET (font, FONT_SPACING_INDEX, |
1412 | make_number (FONT_SPACING_CHARCELL)); | |
4ec88040 | 1413 | else if (PROP_MATCH ("mono")) |
8c102d5b CY |
1414 | ASET (font, FONT_SPACING_INDEX, |
1415 | make_number (FONT_SPACING_MONO)); | |
4ec88040 | 1416 | else if (PROP_MATCH ("proportional")) |
8c102d5b CY |
1417 | ASET (font, FONT_SPACING_INDEX, |
1418 | make_number (FONT_SPACING_PROPORTIONAL)); | |
9277a69d | 1419 | #undef PROP_MATCH |
8c102d5b | 1420 | } |
59facb78 | 1421 | else |
8c102d5b | 1422 | { |
59facb78 | 1423 | /* KEY=VAL pairs */ |
8c102d5b | 1424 | Lisp_Object key; |
59facb78 | 1425 | int prop; |
51c01100 | 1426 | |
59facb78 | 1427 | if (q - p == 10 && memcmp (p + 1, "pixelsize", 9) == 0) |
8c102d5b CY |
1428 | prop = FONT_SIZE_INDEX; |
1429 | else | |
1430 | { | |
1431 | key = font_intern_prop (p, q - p, 1); | |
1432 | prop = get_font_prop_index (key); | |
1433 | } | |
77989187 | 1434 | |
8c102d5b CY |
1435 | p = q + 1; |
1436 | for (q = p; *q && *q != ':'; q++); | |
90c00b01 | 1437 | val = font_intern_prop (p, q - p, 0); |
77989187 | 1438 | |
d26424c5 KH |
1439 | if (prop >= FONT_FOUNDRY_INDEX |
1440 | && prop < FONT_EXTRA_INDEX) | |
637fa988 | 1441 | ASET (font, prop, font_prop_validate (prop, Qnil, val)); |
ce75f06e | 1442 | else |
637fa988 JD |
1443 | { |
1444 | extra_props = nconc2 (extra_props, | |
1445 | Fcons (Fcons (key, val), Qnil)); | |
1446 | } | |
8c102d5b | 1447 | } |
d26424c5 | 1448 | p = q; |
8c102d5b | 1449 | } |
8c102d5b | 1450 | } |
637fa988 JD |
1451 | |
1452 | if (! NILP (extra_props)) | |
1453 | { | |
1454 | struct font_driver_list *driver_list = font_driver_list; | |
1455 | for ( ; driver_list; driver_list = driver_list->next) | |
1456 | if (driver_list->driver->filter_properties) | |
1457 | (*driver_list->driver->filter_properties) (font, extra_props); | |
1458 | } | |
ce75f06e | 1459 | |
8c102d5b CY |
1460 | } |
1461 | else | |
ef18374f | 1462 | { |
8c102d5b CY |
1463 | /* Either a fontconfig-style name with no size and property |
1464 | data, or a GTK-style name. */ | |
6608a7d8 CY |
1465 | Lisp_Object weight = Qnil, slant = Qnil; |
1466 | Lisp_Object width = Qnil, size = Qnil; | |
1467 | char *word_start; | |
b5b8c9e5 | 1468 | ptrdiff_t word_len; |
6608a7d8 CY |
1469 | |
1470 | /* Scan backwards from the end, looking for a size. */ | |
1471 | for (p = name + len - 1; p >= name; p--) | |
1472 | if (!isdigit (*p)) | |
1473 | break; | |
1474 | ||
1475 | if ((p < name + len - 1) && ((p + 1 == name) || *p == ' ')) | |
1476 | /* Found a font size. */ | |
1477 | size = make_float (strtod (p + 1, NULL)); | |
1478 | else | |
1479 | p = name + len; | |
ef18374f | 1480 | |
6608a7d8 CY |
1481 | /* Now P points to the termination of the string, sans size. |
1482 | Scan backwards, looking for font properties. */ | |
1483 | for (; p > name; p = q) | |
ef18374f | 1484 | { |
6608a7d8 | 1485 | for (q = p - 1; q >= name; q--) |
9331887d | 1486 | { |
6608a7d8 CY |
1487 | if (q > name && *(q-1) == '\\') |
1488 | --q; /* Skip quoting backslashes. */ | |
1489 | else if (*q == ' ') | |
1490 | break; | |
027a33c0 | 1491 | } |
8c102d5b | 1492 | |
6608a7d8 CY |
1493 | word_start = q + 1; |
1494 | word_len = p - word_start; | |
8c102d5b | 1495 | |
4ec88040 AS |
1496 | #define PROP_MATCH(STR) \ |
1497 | (word_len == strlen (STR) \ | |
1498 | && memcmp (word_start, STR, strlen (STR)) == 0) | |
1499 | #define PROP_SAVE(VAR, STR) \ | |
1500 | (VAR = NILP (VAR) ? font_intern_prop (STR, strlen (STR), 1) : VAR) | |
1501 | ||
1502 | if (PROP_MATCH ("Ultra-Light")) | |
1503 | PROP_SAVE (weight, "ultra-light"); | |
1504 | else if (PROP_MATCH ("Light")) | |
1505 | PROP_SAVE (weight, "light"); | |
1506 | else if (PROP_MATCH ("Book")) | |
1507 | PROP_SAVE (weight, "book"); | |
1508 | else if (PROP_MATCH ("Medium")) | |
1509 | PROP_SAVE (weight, "medium"); | |
1510 | else if (PROP_MATCH ("Semi-Bold")) | |
1511 | PROP_SAVE (weight, "semi-bold"); | |
1512 | else if (PROP_MATCH ("Bold")) | |
1513 | PROP_SAVE (weight, "bold"); | |
1514 | else if (PROP_MATCH ("Italic")) | |
1515 | PROP_SAVE (slant, "italic"); | |
1516 | else if (PROP_MATCH ("Oblique")) | |
1517 | PROP_SAVE (slant, "oblique"); | |
1518 | else if (PROP_MATCH ("Semi-Condensed")) | |
1519 | PROP_SAVE (width, "semi-condensed"); | |
1520 | else if (PROP_MATCH ("Condensed")) | |
1521 | PROP_SAVE (width, "condensed"); | |
6608a7d8 CY |
1522 | /* An unknown word must be part of the font name. */ |
1523 | else | |
fe69a722 | 1524 | { |
6608a7d8 CY |
1525 | family_end = p; |
1526 | break; | |
fe69a722 | 1527 | } |
ef18374f | 1528 | } |
8c102d5b | 1529 | #undef PROP_MATCH |
372fb76b | 1530 | #undef PROP_SAVE |
9ba6fd41 | 1531 | |
8c102d5b | 1532 | if (family_end) |
6608a7d8 CY |
1533 | ASET (font, FONT_FAMILY_INDEX, |
1534 | font_intern_prop (name, family_end - name, 1)); | |
1535 | if (!NILP (size)) | |
1536 | ASET (font, FONT_SIZE_INDEX, size); | |
1537 | if (!NILP (weight)) | |
1538 | FONT_SET_STYLE (font, FONT_WEIGHT_INDEX, weight); | |
1539 | if (!NILP (slant)) | |
1540 | FONT_SET_STYLE (font, FONT_SLANT_INDEX, slant); | |
1541 | if (!NILP (width)) | |
1542 | FONT_SET_STYLE (font, FONT_WIDTH_INDEX, width); | |
8c102d5b | 1543 | } |
17ab8f5d | 1544 | |
9331887d | 1545 | return 0; |
ef18374f KH |
1546 | } |
1547 | ||
1548 | /* Store fontconfig's font name of FONT (font-spec or font-entity) in | |
1549 | NAME (NBYTES length), and return the name length. If | |
1550 | FONT_SIZE_INDEX of FONT is 0, use PIXEL_SIZE instead. */ | |
1551 | ||
1552 | int | |
09d93395 | 1553 | font_unparse_fcname (Lisp_Object font, int pixel_size, char *name, int nbytes) |
ef18374f | 1554 | { |
b1868a1a | 1555 | Lisp_Object family, foundry; |
35027d0c | 1556 | Lisp_Object tail, val; |
ec6fe57c | 1557 | int point_size; |
b5b8c9e5 PE |
1558 | int i; |
1559 | ptrdiff_t len = 1; | |
ef18374f | 1560 | char *p; |
a9262bb8 | 1561 | Lisp_Object styles[3]; |
675e2c69 | 1562 | const char *style_names[3] = { "weight", "slant", "width" }; |
35027d0c | 1563 | char work[256]; |
ef18374f | 1564 | |
b1868a1a CY |
1565 | family = AREF (font, FONT_FAMILY_INDEX); |
1566 | if (! NILP (family)) | |
1567 | { | |
1568 | if (SYMBOLP (family)) | |
1569 | { | |
1570 | family = SYMBOL_NAME (family); | |
1571 | len += SBYTES (family); | |
1572 | } | |
1573 | else | |
1574 | family = Qnil; | |
1575 | } | |
ec6fe57c KH |
1576 | |
1577 | val = AREF (font, FONT_SIZE_INDEX); | |
1578 | if (INTEGERP (val)) | |
ef18374f | 1579 | { |
ec6fe57c KH |
1580 | if (XINT (val) != 0) |
1581 | pixel_size = XINT (val); | |
1582 | point_size = -1; | |
1583 | len += 21; /* for ":pixelsize=NUM" */ | |
ef18374f | 1584 | } |
3ddb0639 | 1585 | else |
ef18374f | 1586 | { |
3ddb0639 PE |
1587 | if (! FLOATP (val)) |
1588 | abort (); | |
ec6fe57c KH |
1589 | pixel_size = -1; |
1590 | point_size = (int) XFLOAT_DATA (val); | |
1591 | len += 11; /* for "-NUM" */ | |
ef18374f | 1592 | } |
ec6fe57c | 1593 | |
b1868a1a CY |
1594 | foundry = AREF (font, FONT_FOUNDRY_INDEX); |
1595 | if (! NILP (foundry)) | |
1596 | { | |
1597 | if (SYMBOLP (foundry)) | |
1598 | { | |
1599 | foundry = SYMBOL_NAME (foundry); | |
1600 | len += 9 + SBYTES (foundry); /* ":foundry=NAME" */ | |
1601 | } | |
1602 | else | |
1603 | foundry = Qnil; | |
1604 | } | |
ec6fe57c | 1605 | |
35027d0c | 1606 | for (i = 0; i < 3; i++) |
a9262bb8 | 1607 | { |
35027d0c KH |
1608 | styles[i] = font_style_symbolic (font, FONT_WEIGHT_INDEX + i, 0); |
1609 | if (! NILP (styles[i])) | |
1610 | len += sprintf (work, ":%s=%s", style_names[i], | |
1611 | SDATA (SYMBOL_NAME (styles[i]))); | |
ec6fe57c | 1612 | } |
35027d0c KH |
1613 | |
1614 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c2982e87 | 1615 | len += sprintf (work, ":dpi=%"pI"d", XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c KH |
1616 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
1617 | len += strlen (":spacing=100"); | |
1618 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) | |
1619 | len += strlen (":scalable=false"); /* or ":scalable=true" */ | |
1620 | for (tail = AREF (font, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
ec6fe57c | 1621 | { |
13a547c6 | 1622 | Lisp_Object key = XCAR (XCAR (tail)), value = XCDR (XCAR (tail)); |
35027d0c KH |
1623 | |
1624 | len += SBYTES (SYMBOL_NAME (key)) + 1; /* for :KEY= */ | |
13a547c6 PE |
1625 | if (STRINGP (value)) |
1626 | len += SBYTES (value); | |
1627 | else if (INTEGERP (value)) | |
c2982e87 | 1628 | len += sprintf (work, "%"pI"d", XINT (value)); |
13a547c6 PE |
1629 | else if (SYMBOLP (value)) |
1630 | len += (NILP (value) ? 5 : 4); /* for "false" or "true" */ | |
ec6fe57c KH |
1631 | } |
1632 | ||
ef18374f KH |
1633 | if (len > nbytes) |
1634 | return -1; | |
1635 | p = name; | |
b1868a1a CY |
1636 | if (! NILP (family)) |
1637 | p += sprintf (p, "%s", SDATA (family)); | |
ec6fe57c KH |
1638 | if (point_size > 0) |
1639 | { | |
1640 | if (p == name) | |
1641 | p += sprintf (p, "%d", point_size); | |
1642 | else | |
1643 | p += sprintf (p, "-%d", point_size); | |
1644 | } | |
ef18374f KH |
1645 | else if (pixel_size > 0) |
1646 | p += sprintf (p, ":pixelsize=%d", pixel_size); | |
35027d0c | 1647 | if (! NILP (AREF (font, FONT_FOUNDRY_INDEX))) |
a9262bb8 KH |
1648 | p += sprintf (p, ":foundry=%s", |
1649 | SDATA (SYMBOL_NAME (AREF (font, FONT_FOUNDRY_INDEX)))); | |
1650 | for (i = 0; i < 3; i++) | |
35027d0c | 1651 | if (! NILP (styles[i])) |
a9262bb8 | 1652 | p += sprintf (p, ":%s=%s", style_names[i], |
35027d0c KH |
1653 | SDATA (SYMBOL_NAME (styles[i]))); |
1654 | if (INTEGERP (AREF (font, FONT_DPI_INDEX))) | |
c2982e87 | 1655 | p += sprintf (p, ":dpi=%"pI"d", XINT (AREF (font, FONT_DPI_INDEX))); |
35027d0c | 1656 | if (INTEGERP (AREF (font, FONT_SPACING_INDEX))) |
c2982e87 | 1657 | p += sprintf (p, ":spacing=%"pI"d", XINT (AREF (font, FONT_SPACING_INDEX))); |
35027d0c KH |
1658 | if (INTEGERP (AREF (font, FONT_AVGWIDTH_INDEX))) |
1659 | { | |
1660 | if (XINT (AREF (font, FONT_AVGWIDTH_INDEX)) == 0) | |
1661 | p += sprintf (p, ":scalable=true"); | |
1662 | else | |
1663 | p += sprintf (p, ":scalable=false"); | |
1664 | } | |
ef18374f KH |
1665 | return (p - name); |
1666 | } | |
1667 | ||
1668 | /* Parse NAME (null terminated) and store information in FONT | |
1669 | (font-spec or font-entity). If NAME is successfully parsed, return | |
35027d0c | 1670 | 0. Otherwise return -1. */ |
ef18374f KH |
1671 | |
1672 | static int | |
09d93395 | 1673 | font_parse_name (char *name, Lisp_Object font) |
ef18374f | 1674 | { |
8966b757 | 1675 | if (name[0] == '-' || strchr (name, '*') || strchr (name, '?')) |
e950d6f1 | 1676 | return font_parse_xlfd (name, font); |
ec6fe57c | 1677 | return font_parse_fcname (name, font); |
ef18374f KH |
1678 | } |
1679 | ||
35027d0c KH |
1680 | |
1681 | /* Merge FAMILY and REGISTRY into FONT_SPEC. FAMILY may have the form | |
1682 | "FAMILY-FOUNDRY". REGISTRY may not contain charset-encoding | |
1683 | part. */ | |
45eb10fb | 1684 | |
c2f5bfd6 | 1685 | void |
971de7fb | 1686 | font_parse_family_registry (Lisp_Object family, Lisp_Object registry, Lisp_Object font_spec) |
c2f5bfd6 | 1687 | { |
35027d0c KH |
1688 | int len; |
1689 | char *p0, *p1; | |
1690 | ||
d0ab1ebe KH |
1691 | if (! NILP (family) |
1692 | && NILP (AREF (font_spec, FONT_FAMILY_INDEX))) | |
c2f5bfd6 | 1693 | { |
35027d0c KH |
1694 | CHECK_STRING (family); |
1695 | len = SBYTES (family); | |
51b59d79 | 1696 | p0 = SSDATA (family); |
8966b757 | 1697 | p1 = strchr (p0, '-'); |
35027d0c | 1698 | if (p1) |
c2f5bfd6 | 1699 | { |
9903d1e6 | 1700 | if ((*p0 != '*' && p1 - p0 > 0) |
d0ab1ebe | 1701 | && NILP (AREF (font_spec, FONT_FOUNDRY_INDEX))) |
2f286d4f | 1702 | Ffont_put (font_spec, QCfoundry, font_intern_prop (p0, p1 - p0, 1)); |
35027d0c KH |
1703 | p1++; |
1704 | len -= p1 - p0; | |
2f286d4f | 1705 | Ffont_put (font_spec, QCfamily, font_intern_prop (p1, len, 1)); |
c2f5bfd6 | 1706 | } |
35027d0c KH |
1707 | else |
1708 | ASET (font_spec, FONT_FAMILY_INDEX, Fintern (family, Qnil)); | |
c2f5bfd6 | 1709 | } |
35027d0c | 1710 | if (! NILP (registry)) |
c2f5bfd6 | 1711 | { |
35027d0c KH |
1712 | /* Convert "XXX" and "XXX*" to "XXX*-*". */ |
1713 | CHECK_STRING (registry); | |
1714 | len = SBYTES (registry); | |
51b59d79 | 1715 | p0 = SSDATA (registry); |
8966b757 | 1716 | p1 = strchr (p0, '-'); |
35027d0c | 1717 | if (! p1) |
c2f5bfd6 | 1718 | { |
35027d0c KH |
1719 | if (SDATA (registry)[len - 1] == '*') |
1720 | registry = concat2 (registry, build_string ("-*")); | |
1721 | else | |
1722 | registry = concat2 (registry, build_string ("*-*")); | |
c2f5bfd6 | 1723 | } |
35027d0c KH |
1724 | registry = Fdowncase (registry); |
1725 | ASET (font_spec, FONT_REGISTRY_INDEX, Fintern (registry, Qnil)); | |
c2f5bfd6 KH |
1726 | } |
1727 | } | |
1728 | ||
45eb10fb | 1729 | \f |
35027d0c KH |
1730 | /* This part (through the next ^L) is still experimental and not |
1731 | tested much. We may drastically change codes. */ | |
10d16101 | 1732 | |
45eb10fb | 1733 | /* OTF handler */ |
10d16101 | 1734 | |
6a3dadd2 KH |
1735 | #if 0 |
1736 | ||
e950d6f1 KH |
1737 | #define LGSTRING_HEADER_SIZE 6 |
1738 | #define LGSTRING_GLYPH_SIZE 8 | |
1739 | ||
1740 | static int | |
1741 | check_gstring (gstring) | |
1742 | Lisp_Object gstring; | |
1743 | { | |
1744 | Lisp_Object val; | |
1745 | int i, j; | |
1746 | ||
1747 | CHECK_VECTOR (gstring); | |
1748 | val = AREF (gstring, 0); | |
1749 | CHECK_VECTOR (val); | |
1750 | if (ASIZE (val) < LGSTRING_HEADER_SIZE) | |
1751 | goto err; | |
1752 | CHECK_FONT_OBJECT (LGSTRING_FONT (gstring)); | |
f9ffa1ea SM |
1753 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING))) |
1754 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_LBEARING)); | |
1755 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING))) | |
1756 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_RBEARING)); | |
1757 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH))) | |
1758 | CHECK_NATNUM (LGSTRING_SLOT (gstring, LGSTRING_IX_WIDTH)); | |
1759 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1760 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
1761 | if (!NILP (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT))) | |
1762 | CHECK_NUMBER (LGSTRING_SLOT (gstring, LGSTRING_IX_ASCENT)); | |
e950d6f1 | 1763 | |
071132a9 | 1764 | for (i = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) |
e950d6f1 KH |
1765 | { |
1766 | val = LGSTRING_GLYPH (gstring, i); | |
1767 | CHECK_VECTOR (val); | |
1768 | if (ASIZE (val) < LGSTRING_GLYPH_SIZE) | |
1769 | goto err; | |
f9ffa1ea | 1770 | if (NILP (AREF (val, LGLYPH_IX_CHAR))) |
e950d6f1 | 1771 | break; |
f9ffa1ea SM |
1772 | CHECK_NATNUM (AREF (val, LGLYPH_IX_FROM)); |
1773 | CHECK_NATNUM (AREF (val, LGLYPH_IX_TO)); | |
1774 | CHECK_CHARACTER (AREF (val, LGLYPH_IX_CHAR)); | |
1775 | if (!NILP (AREF (val, LGLYPH_IX_CODE))) | |
1776 | CHECK_NATNUM (AREF (val, LGLYPH_IX_CODE)); | |
1777 | if (!NILP (AREF (val, LGLYPH_IX_WIDTH))) | |
1778 | CHECK_NATNUM (AREF (val, LGLYPH_IX_WIDTH)); | |
1779 | if (!NILP (AREF (val, LGLYPH_IX_ADJUSTMENT))) | |
e950d6f1 | 1780 | { |
f9ffa1ea | 1781 | val = AREF (val, LGLYPH_IX_ADJUSTMENT); |
e950d6f1 KH |
1782 | CHECK_VECTOR (val); |
1783 | if (ASIZE (val) < 3) | |
1784 | goto err; | |
1785 | for (j = 0; j < 3; j++) | |
1786 | CHECK_NUMBER (AREF (val, j)); | |
1787 | } | |
1788 | } | |
1789 | return i; | |
1790 | err: | |
1791 | error ("Invalid glyph-string format"); | |
1792 | return -1; | |
1793 | } | |
1794 | ||
cf385d93 KH |
1795 | static void |
1796 | check_otf_features (otf_features) | |
1797 | Lisp_Object otf_features; | |
1798 | { | |
35027d0c | 1799 | Lisp_Object val; |
cf385d93 KH |
1800 | |
1801 | CHECK_CONS (otf_features); | |
1802 | CHECK_SYMBOL (XCAR (otf_features)); | |
1803 | otf_features = XCDR (otf_features); | |
1804 | CHECK_CONS (otf_features); | |
1805 | CHECK_SYMBOL (XCAR (otf_features)); | |
1806 | otf_features = XCDR (otf_features); | |
1807 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1808 | { | |
1809 | CHECK_SYMBOL (Fcar (val)); | |
1810 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
e6c3da20 EZ |
1811 | error ("Invalid OTF GSUB feature: %s", |
1812 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1813 | } |
1814 | otf_features = XCDR (otf_features); | |
1815 | for (val = Fcar (otf_features); ! NILP (val); val = Fcdr (val)) | |
1816 | { | |
1817 | CHECK_SYMBOL (Fcar (val)); | |
1818 | if (SBYTES (SYMBOL_NAME (XCAR (val))) > 4) | |
e6c3da20 EZ |
1819 | error ("Invalid OTF GPOS feature: %s", |
1820 | SDATA (SYMBOL_NAME (XCAR (val)))); | |
cf385d93 KH |
1821 | } |
1822 | } | |
1823 | ||
c2f5bfd6 KH |
1824 | #ifdef HAVE_LIBOTF |
1825 | #include <otf.h> | |
1826 | ||
733fd013 | 1827 | Lisp_Object otf_list; |
c2f5bfd6 KH |
1828 | |
1829 | static Lisp_Object | |
1830 | otf_tag_symbol (tag) | |
1831 | OTF_Tag tag; | |
1832 | { | |
1833 | char name[5]; | |
1834 | ||
1835 | OTF_tag_name (tag, name); | |
1836 | return Fintern (make_unibyte_string (name, 4), Qnil); | |
1837 | } | |
1838 | ||
1839 | static OTF * | |
35027d0c KH |
1840 | otf_open (file) |
1841 | Lisp_Object file; | |
c2f5bfd6 | 1842 | { |
35027d0c | 1843 | Lisp_Object val = Fassoc (file, otf_list); |
733fd013 KH |
1844 | OTF *otf; |
1845 | ||
1846 | if (! NILP (val)) | |
1847 | otf = XSAVE_VALUE (XCDR (val))->pointer; | |
1848 | else | |
c2f5bfd6 | 1849 | { |
51b59d79 | 1850 | otf = STRINGP (file) ? OTF_open (SSDATA (file)) : NULL; |
733fd013 | 1851 | val = make_save_value (otf, 0); |
35027d0c | 1852 | otf_list = Fcons (Fcons (file, val), otf_list); |
c2f5bfd6 | 1853 | } |
733fd013 | 1854 | return otf; |
c2f5bfd6 KH |
1855 | } |
1856 | ||
1857 | ||
1858 | /* Return a list describing which scripts/languages FONT supports by | |
1859 | which GSUB/GPOS features of OpenType tables. See the comment of | |
51c01100 | 1860 | (struct font_driver).otf_capability. */ |
c2f5bfd6 KH |
1861 | |
1862 | Lisp_Object | |
1863 | font_otf_capability (font) | |
1864 | struct font *font; | |
1865 | { | |
1866 | OTF *otf; | |
1867 | Lisp_Object capability = Fcons (Qnil, Qnil); | |
1868 | int i; | |
1869 | ||
35027d0c | 1870 | otf = otf_open (font->props[FONT_FILE_INDEX]); |
c2f5bfd6 KH |
1871 | if (! otf) |
1872 | return Qnil; | |
1873 | for (i = 0; i < 2; i++) | |
1874 | { | |
1875 | OTF_GSUB_GPOS *gsub_gpos; | |
1876 | Lisp_Object script_list = Qnil; | |
1877 | int j; | |
1878 | ||
1879 | if (OTF_get_features (otf, i == 0) < 0) | |
1880 | continue; | |
1881 | gsub_gpos = i == 0 ? otf->gsub : otf->gpos; | |
1882 | for (j = gsub_gpos->ScriptList.ScriptCount - 1; j >= 0; j--) | |
1883 | { | |
1884 | OTF_Script *script = gsub_gpos->ScriptList.Script + j; | |
1885 | Lisp_Object langsys_list = Qnil; | |
1886 | Lisp_Object script_tag = otf_tag_symbol (script->ScriptTag); | |
1887 | int k; | |
1888 | ||
1889 | for (k = script->LangSysCount; k >= 0; k--) | |
1890 | { | |
1891 | OTF_LangSys *langsys; | |
1892 | Lisp_Object feature_list = Qnil; | |
1893 | Lisp_Object langsys_tag; | |
1894 | int l; | |
1895 | ||
e80e09b4 | 1896 | if (k == script->LangSysCount) |
c2f5bfd6 KH |
1897 | { |
1898 | langsys = &script->DefaultLangSys; | |
1899 | langsys_tag = Qnil; | |
1900 | } | |
1901 | else | |
1902 | { | |
1903 | langsys = script->LangSys + k; | |
1904 | langsys_tag | |
1905 | = otf_tag_symbol (script->LangSysRecord[k].LangSysTag); | |
1906 | } | |
e80e09b4 | 1907 | for (l = langsys->FeatureCount - 1; l >= 0; l--) |
c2f5bfd6 KH |
1908 | { |
1909 | OTF_Feature *feature | |
1910 | = gsub_gpos->FeatureList.Feature + langsys->FeatureIndex[l]; | |
1911 | Lisp_Object feature_tag | |
1912 | = otf_tag_symbol (feature->FeatureTag); | |
1913 | ||
1914 | feature_list = Fcons (feature_tag, feature_list); | |
1915 | } | |
1916 | langsys_list = Fcons (Fcons (langsys_tag, feature_list), | |
1917 | langsys_list); | |
1918 | } | |
1919 | script_list = Fcons (Fcons (script_tag, langsys_list), | |
1920 | script_list); | |
1921 | } | |
1922 | ||
1923 | if (i == 0) | |
1924 | XSETCAR (capability, script_list); | |
1925 | else | |
1926 | XSETCDR (capability, script_list); | |
1927 | } | |
1928 | ||
1929 | return capability; | |
1930 | } | |
1931 | ||
733fd013 KH |
1932 | /* Parse OTF features in SPEC and write a proper features spec string |
1933 | in FEATURES for the call of OTF_drive_gsub/gpos (of libotf). It is | |
1934 | assured that the sufficient memory has already allocated for | |
1935 | FEATURES. */ | |
1936 | ||
e80e09b4 | 1937 | static void |
733fd013 | 1938 | generate_otf_features (spec, features) |
c2f5bfd6 | 1939 | Lisp_Object spec; |
733fd013 | 1940 | char *features; |
c2f5bfd6 KH |
1941 | { |
1942 | Lisp_Object val; | |
35027d0c | 1943 | char *p; |
c2f5bfd6 KH |
1944 | int asterisk; |
1945 | ||
733fd013 | 1946 | p = features; |
e80e09b4 | 1947 | *p = '\0'; |
c2f5bfd6 KH |
1948 | for (asterisk = 0; CONSP (spec); spec = XCDR (spec)) |
1949 | { | |
1950 | val = XCAR (spec); | |
e80e09b4 KH |
1951 | CHECK_SYMBOL (val); |
1952 | if (p > features) | |
733fd013 | 1953 | *p++ = ','; |
c2f5bfd6 KH |
1954 | if (SREF (SYMBOL_NAME (val), 0) == '*') |
1955 | { | |
1956 | asterisk = 1; | |
e80e09b4 | 1957 | *p++ = '*'; |
c2f5bfd6 KH |
1958 | } |
1959 | else if (! asterisk) | |
e80e09b4 KH |
1960 | { |
1961 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1962 | p += sprintf (p, "%s", SDATA (val)); |
1963 | } | |
c2f5bfd6 | 1964 | else |
e80e09b4 KH |
1965 | { |
1966 | val = SYMBOL_NAME (val); | |
e80e09b4 KH |
1967 | p += sprintf (p, "~%s", SDATA (val)); |
1968 | } | |
c2f5bfd6 | 1969 | } |
e80e09b4 KH |
1970 | if (CONSP (spec)) |
1971 | error ("OTF spec too long"); | |
1972 | } | |
1973 | ||
733fd013 KH |
1974 | Lisp_Object |
1975 | font_otf_DeviceTable (device_table) | |
1976 | OTF_DeviceTable *device_table; | |
1977 | { | |
1978 | int len = device_table->StartSize - device_table->EndSize + 1; | |
1979 | ||
1980 | return Fcons (make_number (len), | |
1981 | make_unibyte_string (device_table->DeltaValue, len)); | |
1982 | } | |
1983 | ||
1984 | Lisp_Object | |
1985 | font_otf_ValueRecord (value_format, value_record) | |
1986 | int value_format; | |
1987 | OTF_ValueRecord *value_record; | |
1988 | { | |
1989 | Lisp_Object val = Fmake_vector (make_number (8), Qnil); | |
1990 | ||
1991 | if (value_format & OTF_XPlacement) | |
43c0454d | 1992 | ASET (val, 0, make_number (value_record->XPlacement)); |
733fd013 | 1993 | if (value_format & OTF_YPlacement) |
43c0454d | 1994 | ASET (val, 1, make_number (value_record->YPlacement)); |
733fd013 | 1995 | if (value_format & OTF_XAdvance) |
43c0454d | 1996 | ASET (val, 2, make_number (value_record->XAdvance)); |
733fd013 | 1997 | if (value_format & OTF_YAdvance) |
43c0454d | 1998 | ASET (val, 3, make_number (value_record->YAdvance)); |
733fd013 KH |
1999 | if (value_format & OTF_XPlaDevice) |
2000 | ASET (val, 4, font_otf_DeviceTable (&value_record->XPlaDevice)); | |
2001 | if (value_format & OTF_YPlaDevice) | |
2002 | ASET (val, 4, font_otf_DeviceTable (&value_record->YPlaDevice)); | |
2003 | if (value_format & OTF_XAdvDevice) | |
2004 | ASET (val, 4, font_otf_DeviceTable (&value_record->XAdvDevice)); | |
2005 | if (value_format & OTF_YAdvDevice) | |
2006 | ASET (val, 4, font_otf_DeviceTable (&value_record->YAdvDevice)); | |
2007 | return val; | |
2008 | } | |
2009 | ||
2010 | Lisp_Object | |
2011 | font_otf_Anchor (anchor) | |
2012 | OTF_Anchor *anchor; | |
2013 | { | |
2014 | Lisp_Object val; | |
2015 | ||
2016 | val = Fmake_vector (make_number (anchor->AnchorFormat + 1), Qnil); | |
2017 | ASET (val, 0, make_number (anchor->XCoordinate)); | |
2018 | ASET (val, 1, make_number (anchor->YCoordinate)); | |
2019 | if (anchor->AnchorFormat == 2) | |
2020 | ASET (val, 2, make_number (anchor->f.f1.AnchorPoint)); | |
2021 | else | |
2022 | { | |
2023 | ASET (val, 3, font_otf_DeviceTable (&anchor->f.f2.XDeviceTable)); | |
2024 | ASET (val, 4, font_otf_DeviceTable (&anchor->f.f2.YDeviceTable)); | |
2025 | } | |
2026 | return val; | |
2027 | } | |
c2f5bfd6 | 2028 | #endif /* HAVE_LIBOTF */ |
6a3dadd2 | 2029 | #endif /* 0 */ |
c2f5bfd6 | 2030 | |
c2f5bfd6 KH |
2031 | \f |
2032 | /* Font sorting */ | |
2033 | ||
f57e2426 J |
2034 | static unsigned font_score (Lisp_Object, Lisp_Object *); |
2035 | static int font_compare (const void *, const void *); | |
2036 | static Lisp_Object font_sort_entities (Lisp_Object, Lisp_Object, | |
2037 | Lisp_Object, int); | |
c2f5bfd6 | 2038 | |
55e41770 | 2039 | static double |
971de7fb | 2040 | font_rescale_ratio (Lisp_Object font_entity) |
55e41770 KH |
2041 | { |
2042 | Lisp_Object tail, elt; | |
2043 | Lisp_Object name = Qnil; | |
2044 | ||
2045 | for (tail = Vface_font_rescale_alist; CONSP (tail); tail = XCDR (tail)) | |
2046 | { | |
2047 | elt = XCAR (tail); | |
2048 | if (FLOATP (XCDR (elt))) | |
2049 | { | |
2050 | if (STRINGP (XCAR (elt))) | |
2051 | { | |
2052 | if (NILP (name)) | |
2053 | name = Ffont_xlfd_name (font_entity, Qnil); | |
2054 | if (fast_string_match_ignore_case (XCAR (elt), name) >= 0) | |
2055 | return XFLOAT_DATA (XCDR (elt)); | |
2056 | } | |
2057 | else if (FONT_SPEC_P (XCAR (elt))) | |
2058 | { | |
2059 | if (font_match_p (XCAR (elt), font_entity)) | |
2060 | return XFLOAT_DATA (XCDR (elt)); | |
2061 | } | |
2062 | } | |
2063 | } | |
2064 | return 1.0; | |
2065 | } | |
2066 | ||
c2f5bfd6 KH |
2067 | /* We sort fonts by scoring each of them against a specified |
2068 | font-spec. The score value is 32 bit (`unsigned'), and the smaller | |
2069 | the value is, the closer the font is to the font-spec. | |
2070 | ||
56dd2d86 | 2071 | The lowest 2 bits of the score are used for driver type. The font |
4007dd1c | 2072 | available by the most preferred font driver is 0. |
35027d0c | 2073 | |
56dd2d86 | 2074 | The 4 7-bit fields in the higher 28 bits are used for numeric properties |
c2f5bfd6 KH |
2075 | WEIGHT, SLANT, WIDTH, and SIZE. */ |
2076 | ||
2077 | /* How many bits to shift to store the difference value of each font | |
56dd2d86 | 2078 | property in a score. Note that floats for FONT_TYPE_INDEX and |
35027d0c | 2079 | FONT_REGISTRY_INDEX are not used. */ |
c2f5bfd6 KH |
2080 | static int sort_shift_bits[FONT_SIZE_INDEX + 1]; |
2081 | ||
9331887d KH |
2082 | /* Score font-entity ENTITY against properties of font-spec SPEC_PROP. |
2083 | The return value indicates how different ENTITY is compared with | |
51c13510 | 2084 | SPEC_PROP. */ |
c2f5bfd6 KH |
2085 | |
2086 | static unsigned | |
971de7fb | 2087 | font_score (Lisp_Object entity, Lisp_Object *spec_prop) |
c2f5bfd6 KH |
2088 | { |
2089 | unsigned score = 0; | |
2090 | int i; | |
c2f5bfd6 | 2091 | |
35027d0c KH |
2092 | /* Score three style numeric fields. Maximum difference is 127. */ |
2093 | for (i = FONT_WEIGHT_INDEX; i <= FONT_WIDTH_INDEX; i++) | |
2094 | if (! NILP (spec_prop[i]) && ! EQ (AREF (entity, i), spec_prop[i])) | |
2095 | { | |
790771b1 PE |
2096 | EMACS_INT diff = ((XINT (AREF (entity, i)) >> 8) |
2097 | - (XINT (spec_prop[i]) >> 8)); | |
35027d0c KH |
2098 | if (diff < 0) |
2099 | diff = - diff; | |
790771b1 | 2100 | score |= min (diff, 127) << sort_shift_bits[i]; |
35027d0c KH |
2101 | } |
2102 | ||
2103 | /* Score the size. Maximum difference is 127. */ | |
2104 | i = FONT_SIZE_INDEX; | |
55e41770 KH |
2105 | if (! NILP (spec_prop[FONT_SIZE_INDEX]) |
2106 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
35027d0c KH |
2107 | { |
2108 | /* We use the higher 6-bit for the actual size difference. The | |
2109 | lowest bit is set if the DPI is different. */ | |
b79e8648 PE |
2110 | EMACS_INT diff; |
2111 | EMACS_INT pixel_size = XINT (spec_prop[FONT_SIZE_INDEX]); | |
35027d0c | 2112 | |
55e41770 KH |
2113 | if (CONSP (Vface_font_rescale_alist)) |
2114 | pixel_size *= font_rescale_ratio (entity); | |
2115 | diff = pixel_size - XINT (AREF (entity, FONT_SIZE_INDEX)); | |
35027d0c KH |
2116 | if (diff < 0) |
2117 | diff = - diff; | |
d0ab1ebe | 2118 | diff <<= 1; |
35027d0c KH |
2119 | if (! NILP (spec_prop[FONT_DPI_INDEX]) |
2120 | && ! EQ (spec_prop[FONT_DPI_INDEX], AREF (entity, FONT_DPI_INDEX))) | |
2121 | diff |= 1; | |
c0a6070d KH |
2122 | if (! NILP (spec_prop[FONT_AVGWIDTH_INDEX]) |
2123 | && ! EQ (spec_prop[FONT_AVGWIDTH_INDEX], AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2124 | diff |= 1; | |
35027d0c | 2125 | score |= min (diff, 127) << sort_shift_bits[FONT_SIZE_INDEX]; |
c2f5bfd6 KH |
2126 | } |
2127 | ||
2128 | return score; | |
2129 | } | |
2130 | ||
2131 | ||
72d36834 KH |
2132 | /* Concatenate all elements of LIST into one vector. LIST is a list |
2133 | of font-entity vectors. */ | |
c2f5bfd6 | 2134 | |
72d36834 KH |
2135 | static Lisp_Object |
2136 | font_vconcat_entity_vectors (Lisp_Object list) | |
c2f5bfd6 | 2137 | { |
72d36834 KH |
2138 | int nargs = XINT (Flength (list)); |
2139 | Lisp_Object *args = alloca (sizeof (Lisp_Object) * nargs); | |
2140 | int i; | |
2141 | ||
2142 | for (i = 0; i < nargs; i++, list = XCDR (list)) | |
2143 | args[i] = XCAR (list); | |
2144 | return Fvconcat (nargs, args); | |
c2f5bfd6 KH |
2145 | } |
2146 | ||
2147 | ||
2148 | /* The structure for elements being sorted by qsort. */ | |
2149 | struct font_sort_data | |
2150 | { | |
2151 | unsigned score; | |
72d36834 | 2152 | int font_driver_preference; |
c2f5bfd6 KH |
2153 | Lisp_Object entity; |
2154 | }; | |
2155 | ||
2156 | ||
72d36834 KH |
2157 | /* The comparison function for qsort. */ |
2158 | ||
2159 | static int | |
971de7fb | 2160 | font_compare (const void *d1, const void *d2) |
72d36834 KH |
2161 | { |
2162 | const struct font_sort_data *data1 = d1; | |
2163 | const struct font_sort_data *data2 = d2; | |
2164 | ||
2165 | if (data1->score < data2->score) | |
2166 | return -1; | |
2167 | else if (data1->score > data2->score) | |
2168 | return 1; | |
2169 | return (data1->font_driver_preference - data2->font_driver_preference); | |
2170 | } | |
2171 | ||
2172 | ||
2173 | /* Sort each font-entity vector in LIST by closeness to font-spec PREFER. | |
c2f5bfd6 | 2174 | If PREFER specifies a point-size, calculate the corresponding |
9331887d | 2175 | pixel-size from QCdpi property of PREFER or from the Y-resolution |
7181ea6a | 2176 | of FRAME before sorting. |
35027d0c | 2177 | |
c9477f01 KH |
2178 | If BEST-ONLY is nonzero, return the best matching entity (that |
2179 | supports the character BEST-ONLY if BEST-ONLY is positive, or any | |
72d36834 KH |
2180 | if BEST-ONLY is negative). Otherwise, return the sorted result as |
2181 | a single vector of font-entities. | |
c9477f01 | 2182 | |
72d36834 KH |
2183 | This function does no optimization for the case that the total |
2184 | number of elements is 1. The caller should avoid calling this in | |
2185 | such a case. */ | |
c2f5bfd6 KH |
2186 | |
2187 | static Lisp_Object | |
971de7fb | 2188 | font_sort_entities (Lisp_Object list, Lisp_Object prefer, Lisp_Object frame, int best_only) |
c2f5bfd6 | 2189 | { |
9331887d | 2190 | Lisp_Object prefer_prop[FONT_SPEC_MAX]; |
72d36834 | 2191 | int len, maxlen, i; |
c2f5bfd6 | 2192 | struct font_sort_data *data; |
35027d0c | 2193 | unsigned best_score; |
72d36834 | 2194 | Lisp_Object best_entity; |
4007dd1c | 2195 | struct frame *f = XFRAME (frame); |
5ad03b97 | 2196 | Lisp_Object tail, vec IF_LINT (= Qnil); |
c2f5bfd6 KH |
2197 | USE_SAFE_ALLOCA; |
2198 | ||
9903d1e6 | 2199 | for (i = FONT_WEIGHT_INDEX; i <= FONT_AVGWIDTH_INDEX; i++) |
9331887d | 2200 | prefer_prop[i] = AREF (prefer, i); |
9331887d KH |
2201 | if (FLOATP (prefer_prop[FONT_SIZE_INDEX])) |
2202 | prefer_prop[FONT_SIZE_INDEX] | |
2203 | = make_number (font_pixel_size (XFRAME (frame), prefer)); | |
2204 | ||
72d36834 KH |
2205 | if (NILP (XCDR (list))) |
2206 | { | |
2207 | /* What we have to take care of is this single vector. */ | |
2208 | vec = XCAR (list); | |
2209 | maxlen = ASIZE (vec); | |
2210 | } | |
2211 | else if (best_only) | |
2212 | { | |
2213 | /* We don't have to perform sort, so there's no need of creating | |
2214 | a single vector. But, we must find the length of the longest | |
2215 | vector. */ | |
2216 | maxlen = 0; | |
2217 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
2218 | if (maxlen < ASIZE (XCAR (tail))) | |
2219 | maxlen = ASIZE (XCAR (tail)); | |
2220 | } | |
2221 | else | |
2222 | { | |
2223 | /* We have to create a single vector to sort it. */ | |
2224 | vec = font_vconcat_entity_vectors (list); | |
2225 | maxlen = ASIZE (vec); | |
2226 | } | |
2227 | ||
2228 | SAFE_ALLOCA (data, struct font_sort_data *, (sizeof *data) * maxlen); | |
c9477f01 KH |
2229 | best_score = 0xFFFFFFFF; |
2230 | best_entity = Qnil; | |
72d36834 KH |
2231 | |
2232 | for (tail = list; CONSP (tail); tail = XCDR (tail)) | |
c2f5bfd6 | 2233 | { |
72d36834 KH |
2234 | int font_driver_preference = 0; |
2235 | Lisp_Object current_font_driver; | |
ce75f06e | 2236 | |
72d36834 KH |
2237 | if (best_only) |
2238 | vec = XCAR (tail); | |
2239 | len = ASIZE (vec); | |
2240 | ||
2241 | /* We are sure that the length of VEC > 0. */ | |
2242 | current_font_driver = AREF (AREF (vec, 0), FONT_TYPE_INDEX); | |
2243 | /* Score the elements. */ | |
2244 | for (i = 0; i < len; i++) | |
35027d0c | 2245 | { |
72d36834 KH |
2246 | data[i].entity = AREF (vec, i); |
2247 | data[i].score | |
2248 | = ((best_only <= 0 || font_has_char (f, data[i].entity, best_only) | |
2249 | > 0) | |
2250 | ? font_score (data[i].entity, prefer_prop) | |
2251 | : 0xFFFFFFFF); | |
2252 | if (best_only && best_score > data[i].score) | |
2253 | { | |
2254 | best_score = data[i].score; | |
2255 | best_entity = data[i].entity; | |
2256 | if (best_score == 0) | |
2257 | break; | |
2258 | } | |
2259 | if (! EQ (current_font_driver, AREF (AREF (vec, i), FONT_TYPE_INDEX))) | |
2260 | { | |
2261 | current_font_driver = AREF (AREF (vec, i), FONT_TYPE_INDEX); | |
2262 | font_driver_preference++; | |
2263 | } | |
2264 | data[i].font_driver_preference = font_driver_preference; | |
35027d0c | 2265 | } |
72d36834 KH |
2266 | |
2267 | /* Sort if necessary. */ | |
2268 | if (! best_only) | |
2269 | { | |
2270 | qsort (data, len, sizeof *data, font_compare); | |
2271 | for (i = 0; i < len; i++) | |
2272 | ASET (vec, i, data[i].entity); | |
2273 | break; | |
2274 | } | |
2275 | else | |
2276 | vec = best_entity; | |
c2f5bfd6 | 2277 | } |
72d36834 | 2278 | |
c2f5bfd6 KH |
2279 | SAFE_FREE (); |
2280 | ||
652b9560 | 2281 | FONT_ADD_LOG ("sort-by", prefer, vec); |
c2f5bfd6 KH |
2282 | return vec; |
2283 | } | |
2284 | ||
2285 | \f | |
2286 | /* API of Font Service Layer. */ | |
2287 | ||
45eb10fb KH |
2288 | /* Reflect ORDER (see the variable font_sort_order in xfaces.c) to |
2289 | sort_shift_bits. Finternal_set_font_selection_order calls this | |
2290 | function with font_sort_order after setting up it. */ | |
2291 | ||
c2f5bfd6 | 2292 | void |
971de7fb | 2293 | font_update_sort_order (int *order) |
c2f5bfd6 | 2294 | { |
35027d0c | 2295 | int i, shift_bits; |
c2f5bfd6 | 2296 | |
943b7eea | 2297 | for (i = 0, shift_bits = 23; i < 4; i++, shift_bits -= 7) |
c2f5bfd6 KH |
2298 | { |
2299 | int xlfd_idx = order[i]; | |
2300 | ||
2301 | if (xlfd_idx == XLFD_WEIGHT_INDEX) | |
2302 | sort_shift_bits[FONT_WEIGHT_INDEX] = shift_bits; | |
2303 | else if (xlfd_idx == XLFD_SLANT_INDEX) | |
2304 | sort_shift_bits[FONT_SLANT_INDEX] = shift_bits; | |
2305 | else if (xlfd_idx == XLFD_SWIDTH_INDEX) | |
2306 | sort_shift_bits[FONT_WIDTH_INDEX] = shift_bits; | |
2307 | else | |
2308 | sort_shift_bits[FONT_SIZE_INDEX] = shift_bits; | |
2309 | } | |
2310 | } | |
2311 | ||
51c13510 | 2312 | static int |
971de7fb | 2313 | font_check_otf_features (Lisp_Object script, Lisp_Object langsys, Lisp_Object features, Lisp_Object table) |
51c13510 KH |
2314 | { |
2315 | Lisp_Object val; | |
2316 | int negative; | |
2317 | ||
2318 | table = assq_no_quit (script, table); | |
2319 | if (NILP (table)) | |
2320 | return 0; | |
2321 | table = XCDR (table); | |
2322 | if (! NILP (langsys)) | |
2323 | { | |
2324 | table = assq_no_quit (langsys, table); | |
2325 | if (NILP (table)) | |
2326 | return 0; | |
2327 | } | |
2328 | else | |
2329 | { | |
2330 | val = assq_no_quit (Qnil, table); | |
2331 | if (NILP (val)) | |
2332 | table = XCAR (table); | |
2333 | else | |
2334 | table = val; | |
2335 | } | |
2336 | table = XCDR (table); | |
2337 | for (negative = 0; CONSP (features); features = XCDR (features)) | |
2338 | { | |
2339 | if (NILP (XCAR (features))) | |
c423ecca KH |
2340 | { |
2341 | negative = 1; | |
2342 | continue; | |
2343 | } | |
51c13510 KH |
2344 | if (NILP (Fmemq (XCAR (features), table)) != negative) |
2345 | return 0; | |
2346 | } | |
2347 | return 1; | |
2348 | } | |
2349 | ||
2350 | /* Check if OTF_CAPABILITY satisfies SPEC (otf-spec). */ | |
2351 | ||
2352 | static int | |
3cba9369 | 2353 | font_check_otf (Lisp_Object spec, Lisp_Object otf_capability) |
51c13510 KH |
2354 | { |
2355 | Lisp_Object script, langsys = Qnil, gsub = Qnil, gpos = Qnil; | |
2356 | ||
2357 | script = XCAR (spec); | |
2358 | spec = XCDR (spec); | |
2359 | if (! NILP (spec)) | |
2360 | { | |
2361 | langsys = XCAR (spec); | |
2362 | spec = XCDR (spec); | |
2363 | if (! NILP (spec)) | |
2364 | { | |
2365 | gsub = XCAR (spec); | |
2366 | spec = XCDR (spec); | |
2367 | if (! NILP (spec)) | |
2368 | gpos = XCAR (spec); | |
2369 | } | |
2370 | } | |
2371 | ||
2372 | if (! NILP (gsub) && ! font_check_otf_features (script, langsys, gsub, | |
2373 | XCAR (otf_capability))) | |
2374 | return 0; | |
2375 | if (! NILP (gpos) && ! font_check_otf_features (script, langsys, gpos, | |
2376 | XCDR (otf_capability))) | |
2377 | return 0; | |
2378 | return 1; | |
2379 | } | |
2380 | ||
45eb10fb | 2381 | |
51c13510 KH |
2382 | |
2383 | /* Check if FONT (font-entity or font-object) matches with the font | |
2384 | specification SPEC. */ | |
45eb10fb | 2385 | |
ef18374f | 2386 | int |
971de7fb | 2387 | font_match_p (Lisp_Object spec, Lisp_Object font) |
ef18374f | 2388 | { |
51c13510 KH |
2389 | Lisp_Object prop[FONT_SPEC_MAX], *props; |
2390 | Lisp_Object extra, font_extra; | |
ef18374f KH |
2391 | int i; |
2392 | ||
51c13510 KH |
2393 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
2394 | if (! NILP (AREF (spec, i)) | |
2395 | && ! NILP (AREF (font, i)) | |
2396 | && ! EQ (AREF (spec, i), AREF (font, i))) | |
2397 | return 0; | |
2398 | props = XFONT_SPEC (spec)->props; | |
2399 | if (FLOATP (props[FONT_SIZE_INDEX])) | |
2400 | { | |
2401 | for (i = FONT_FOUNDRY_INDEX; i < FONT_SIZE_INDEX; i++) | |
2402 | prop[i] = AREF (spec, i); | |
2403 | prop[FONT_SIZE_INDEX] | |
2404 | = make_number (font_pixel_size (XFRAME (selected_frame), spec)); | |
2405 | props = prop; | |
2406 | } | |
2407 | ||
2408 | if (font_score (font, props) > 0) | |
2409 | return 0; | |
2410 | extra = AREF (spec, FONT_EXTRA_INDEX); | |
2411 | font_extra = AREF (font, FONT_EXTRA_INDEX); | |
2412 | for (; CONSP (extra); extra = XCDR (extra)) | |
35027d0c | 2413 | { |
51c13510 KH |
2414 | Lisp_Object key = XCAR (XCAR (extra)); |
2415 | Lisp_Object val = XCDR (XCAR (extra)), val2; | |
2416 | ||
2417 | if (EQ (key, QClang)) | |
2418 | { | |
2419 | val2 = assq_no_quit (key, font_extra); | |
2420 | if (NILP (val2)) | |
2421 | return 0; | |
2422 | val2 = XCDR (val2); | |
2423 | if (CONSP (val)) | |
2424 | { | |
2425 | if (! CONSP (val2)) | |
2426 | return 0; | |
2427 | while (CONSP (val)) | |
2428 | if (NILP (Fmemq (val, val2))) | |
2429 | return 0; | |
2430 | } | |
2431 | else | |
2432 | if (CONSP (val2) | |
2433 | ? NILP (Fmemq (val, XCDR (val2))) | |
2434 | : ! EQ (val, val2)) | |
2435 | return 0; | |
2436 | } | |
2437 | else if (EQ (key, QCscript)) | |
2438 | { | |
2439 | val2 = assq_no_quit (val, Vscript_representative_chars); | |
5bdd4dd2 KH |
2440 | if (CONSP (val2)) |
2441 | { | |
2442 | val2 = XCDR (val2); | |
2443 | if (CONSP (val2)) | |
2444 | { | |
2445 | /* All characters in the list must be supported. */ | |
2446 | for (; CONSP (val2); val2 = XCDR (val2)) | |
2447 | { | |
2448 | if (! NATNUMP (XCAR (val2))) | |
2449 | continue; | |
2450 | if (font_encode_char (font, XFASTINT (XCAR (val2))) | |
2451 | == FONT_INVALID_CODE) | |
2452 | return 0; | |
2453 | } | |
2454 | } | |
2455 | else if (VECTORP (val2)) | |
2456 | { | |
2457 | /* At most one character in the vector must be supported. */ | |
2458 | for (i = 0; i < ASIZE (val2); i++) | |
2459 | { | |
2460 | if (! NATNUMP (AREF (val2, i))) | |
2461 | continue; | |
2462 | if (font_encode_char (font, XFASTINT (AREF (val2, i))) | |
2463 | != FONT_INVALID_CODE) | |
f5485732 | 2464 | break; |
5bdd4dd2 KH |
2465 | } |
2466 | if (i == ASIZE (val2)) | |
2467 | return 0; | |
2468 | } | |
2469 | } | |
51c13510 KH |
2470 | } |
2471 | else if (EQ (key, QCotf)) | |
2472 | { | |
2473 | struct font *fontp; | |
2474 | ||
2475 | if (! FONT_OBJECT_P (font)) | |
2476 | return 0; | |
2477 | fontp = XFONT_OBJECT (font); | |
2478 | if (! fontp->driver->otf_capability) | |
2479 | return 0; | |
2480 | val2 = fontp->driver->otf_capability (fontp); | |
2481 | if (NILP (val2) || ! font_check_otf (val, val2)) | |
2482 | return 0; | |
2483 | } | |
35027d0c KH |
2484 | } |
2485 | ||
51c13510 | 2486 | return 1; |
ef18374f | 2487 | } |
ca4da08a | 2488 | \f |
819e81df | 2489 | |
ca4da08a KH |
2490 | /* Font cache |
2491 | ||
2492 | Each font backend has the callback function get_cache, and it | |
2493 | returns a cons cell of which cdr part can be freely used for | |
2494 | caching fonts. The cons cell may be shared by multiple frames | |
2495 | and/or multiple font drivers. So, we arrange the cdr part as this: | |
2496 | ||
2497 | ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) | |
2498 | ||
2499 | where DRIVER-TYPE is a symbol such as `x', `xft', etc., NUM-FRAMES | |
2500 | is a number frames sharing this cache, and FONT-CACHE-DATA is a | |
2501 | cons (FONT-SPEC FONT-ENTITY ...). */ | |
2502 | ||
f57e2426 J |
2503 | static void font_prepare_cache (FRAME_PTR, struct font_driver *); |
2504 | static void font_finish_cache (FRAME_PTR, struct font_driver *); | |
2505 | static Lisp_Object font_get_cache (FRAME_PTR, struct font_driver *); | |
2506 | static void font_clear_cache (FRAME_PTR, Lisp_Object, | |
2507 | struct font_driver *); | |
ca4da08a KH |
2508 | |
2509 | static void | |
971de7fb | 2510 | font_prepare_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2511 | { |
2512 | Lisp_Object cache, val; | |
2513 | ||
2514 | cache = driver->get_cache (f); | |
2515 | val = XCDR (cache); | |
2516 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2517 | val = XCDR (val); | |
2518 | if (NILP (val)) | |
2519 | { | |
2520 | val = Fcons (driver->type, Fcons (make_number (1), Qnil)); | |
2521 | XSETCDR (cache, Fcons (val, XCDR (cache))); | |
2522 | } | |
2523 | else | |
2524 | { | |
2525 | val = XCDR (XCAR (val)); | |
2526 | XSETCAR (val, make_number (XINT (XCAR (val)) + 1)); | |
2527 | } | |
2528 | } | |
2529 | ||
43c0454d | 2530 | |
ca4da08a | 2531 | static void |
971de7fb | 2532 | font_finish_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2533 | { |
2534 | Lisp_Object cache, val, tmp; | |
2535 | ||
2536 | ||
2537 | cache = driver->get_cache (f); | |
2538 | val = XCDR (cache); | |
2539 | while (CONSP (val) && ! EQ (XCAR (XCAR (val)), driver->type)) | |
2540 | cache = val, val = XCDR (val); | |
d0ab1ebe | 2541 | font_assert (! NILP (val)); |
ca4da08a | 2542 | tmp = XCDR (XCAR (val)); |
43c0454d | 2543 | XSETCAR (tmp, make_number (XINT (XCAR (tmp)) - 1)); |
ca4da08a KH |
2544 | if (XINT (XCAR (tmp)) == 0) |
2545 | { | |
2546 | font_clear_cache (f, XCAR (val), driver); | |
2547 | XSETCDR (cache, XCDR (val)); | |
2548 | } | |
ca4da08a KH |
2549 | } |
2550 | ||
43c0454d | 2551 | |
ca4da08a | 2552 | static Lisp_Object |
971de7fb | 2553 | font_get_cache (FRAME_PTR f, struct font_driver *driver) |
ca4da08a KH |
2554 | { |
2555 | Lisp_Object val = driver->get_cache (f); | |
2556 | Lisp_Object type = driver->type; | |
2557 | ||
d0ab1ebe | 2558 | font_assert (CONSP (val)); |
ca4da08a | 2559 | for (val = XCDR (val); ! EQ (XCAR (XCAR (val)), type); val = XCDR (val)); |
d0ab1ebe | 2560 | font_assert (CONSP (val)); |
ca4da08a KH |
2561 | /* VAL = ((DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) ...) */ |
2562 | val = XCDR (XCAR (val)); | |
2563 | return val; | |
2564 | } | |
2565 | ||
43c0454d KH |
2566 | static int num_fonts; |
2567 | ||
ca4da08a | 2568 | static void |
971de7fb | 2569 | font_clear_cache (FRAME_PTR f, Lisp_Object cache, struct font_driver *driver) |
ca4da08a KH |
2570 | { |
2571 | Lisp_Object tail, elt; | |
6136b72f | 2572 | Lisp_Object tail2, entity; |
51c01100 | 2573 | |
ca4da08a KH |
2574 | /* CACHE = (DRIVER-TYPE NUM-FRAMES FONT-CACHE-DATA ...) */ |
2575 | for (tail = XCDR (XCDR (cache)); CONSP (tail); tail = XCDR (tail)) | |
2576 | { | |
2577 | elt = XCAR (tail); | |
6136b72f CY |
2578 | /* elt should have the form (FONT-SPEC FONT-ENTITY ...) */ |
2579 | if (CONSP (elt) && FONT_SPEC_P (XCAR (elt))) | |
ca4da08a | 2580 | { |
6136b72f | 2581 | for (tail2 = XCDR (elt); CONSP (tail2); tail2 = XCDR (tail2)) |
ca4da08a | 2582 | { |
6136b72f | 2583 | entity = XCAR (tail2); |
ca4da08a | 2584 | |
6136b72f CY |
2585 | if (FONT_ENTITY_P (entity) |
2586 | && EQ (driver->type, AREF (entity, FONT_TYPE_INDEX))) | |
ca4da08a KH |
2587 | { |
2588 | Lisp_Object objlist = AREF (entity, FONT_OBJLIST_INDEX); | |
2589 | ||
2590 | for (; CONSP (objlist); objlist = XCDR (objlist)) | |
2591 | { | |
2592 | Lisp_Object val = XCAR (objlist); | |
35027d0c | 2593 | struct font *font = XFONT_OBJECT (val); |
ca4da08a | 2594 | |
5e634ec9 KH |
2595 | if (! NILP (AREF (val, FONT_TYPE_INDEX))) |
2596 | { | |
2597 | font_assert (font && driver == font->driver); | |
2598 | driver->close (f, font); | |
2599 | num_fonts--; | |
2600 | } | |
ca4da08a KH |
2601 | } |
2602 | if (driver->free_entity) | |
2603 | driver->free_entity (entity); | |
2604 | } | |
2605 | } | |
2606 | } | |
2607 | } | |
2608 | XSETCDR (cache, Qnil); | |
2609 | } | |
2610 | \f | |
2611 | ||
c2f5bfd6 KH |
2612 | static Lisp_Object scratch_font_spec, scratch_font_prefer; |
2613 | ||
7d56b2dd | 2614 | /* Check each font-entity in VEC, and return a list of font-entities |
56dd2d86 | 2615 | that satisfy these conditions: |
7d56b2dd KH |
2616 | (1) matches with SPEC and SIZE if SPEC is not nil, and |
2617 | (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil). | |
2618 | */ | |
2619 | ||
7b81e2d0 | 2620 | static Lisp_Object |
971de7fb | 2621 | font_delete_unmatched (Lisp_Object vec, Lisp_Object spec, int size) |
35027d0c | 2622 | { |
d0ab1ebe | 2623 | Lisp_Object entity, val; |
35027d0c | 2624 | enum font_property_index prop; |
72d36834 | 2625 | int i; |
45eb10fb | 2626 | |
72d36834 | 2627 | for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--) |
35027d0c | 2628 | { |
72d36834 | 2629 | entity = AREF (vec, i); |
7d56b2dd KH |
2630 | if (! NILP (Vface_ignored_fonts)) |
2631 | { | |
2632 | char name[256]; | |
2633 | Lisp_Object tail, regexp; | |
2634 | ||
2635 | if (font_unparse_xlfd (entity, 0, name, 256) >= 0) | |
2636 | { | |
2637 | for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail)) | |
2638 | { | |
2639 | regexp = XCAR (tail); | |
2640 | if (STRINGP (regexp) | |
2641 | && fast_c_string_match_ignore_case (regexp, name) >= 0) | |
2642 | break; | |
2643 | } | |
2644 | if (CONSP (tail)) | |
2645 | continue; | |
2646 | } | |
2647 | } | |
2648 | if (NILP (spec)) | |
2649 | { | |
2650 | val = Fcons (entity, val); | |
2651 | continue; | |
2652 | } | |
35027d0c KH |
2653 | for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++) |
2654 | if (INTEGERP (AREF (spec, prop)) | |
2655 | && ((XINT (AREF (spec, prop)) >> 8) | |
2656 | != (XINT (AREF (entity, prop)) >> 8))) | |
2657 | prop = FONT_SPEC_MAX; | |
7181ea6a | 2658 | if (prop < FONT_SPEC_MAX |
35027d0c KH |
2659 | && size |
2660 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
2661 | { | |
2662 | int diff = XINT (AREF (entity, FONT_SIZE_INDEX)) - size; | |
c2f5bfd6 | 2663 | |
35027d0c KH |
2664 | if (diff != 0 |
2665 | && (diff < 0 ? -diff > FONT_PIXEL_SIZE_QUANTUM | |
2666 | : diff > FONT_PIXEL_SIZE_QUANTUM)) | |
2667 | prop = FONT_SPEC_MAX; | |
2668 | } | |
7181ea6a KH |
2669 | if (prop < FONT_SPEC_MAX |
2670 | && INTEGERP (AREF (spec, FONT_DPI_INDEX)) | |
2671 | && INTEGERP (AREF (entity, FONT_DPI_INDEX)) | |
c576d6dc | 2672 | && XINT (AREF (entity, FONT_DPI_INDEX)) != 0 |
7181ea6a KH |
2673 | && ! EQ (AREF (spec, FONT_DPI_INDEX), AREF (entity, FONT_DPI_INDEX))) |
2674 | prop = FONT_SPEC_MAX; | |
2675 | if (prop < FONT_SPEC_MAX | |
2676 | && INTEGERP (AREF (spec, FONT_AVGWIDTH_INDEX)) | |
2677 | && INTEGERP (AREF (entity, FONT_AVGWIDTH_INDEX)) | |
c576d6dc | 2678 | && XINT (AREF (entity, FONT_AVGWIDTH_INDEX)) != 0 |
7181ea6a KH |
2679 | && ! EQ (AREF (spec, FONT_AVGWIDTH_INDEX), |
2680 | AREF (entity, FONT_AVGWIDTH_INDEX))) | |
2681 | prop = FONT_SPEC_MAX; | |
35027d0c | 2682 | if (prop < FONT_SPEC_MAX) |
d0ab1ebe | 2683 | val = Fcons (entity, val); |
35027d0c | 2684 | } |
72d36834 | 2685 | return (Fvconcat (1, &val)); |
35027d0c KH |
2686 | } |
2687 | ||
2688 | ||
72d36834 | 2689 | /* Return a list of vectors of font-entities matching with SPEC on |
ce75f06e CY |
2690 | FRAME. Each elements in the list is a vector of entities from the |
2691 | same font-driver. */ | |
35027d0c KH |
2692 | |
2693 | Lisp_Object | |
971de7fb | 2694 | font_list_entities (Lisp_Object frame, Lisp_Object spec) |
c2f5bfd6 KH |
2695 | { |
2696 | FRAME_PTR f = XFRAME (frame); | |
2697 | struct font_driver_list *driver_list = f->font_driver_list; | |
4007dd1c | 2698 | Lisp_Object ftype, val; |
72d36834 | 2699 | Lisp_Object list = Qnil; |
35027d0c KH |
2700 | int size; |
2701 | int need_filtering = 0; | |
c2f5bfd6 KH |
2702 | int i; |
2703 | ||
d0ab1ebe | 2704 | font_assert (FONT_SPEC_P (spec)); |
c2f5bfd6 | 2705 | |
35027d0c KH |
2706 | if (INTEGERP (AREF (spec, FONT_SIZE_INDEX))) |
2707 | size = XINT (AREF (spec, FONT_SIZE_INDEX)); | |
2708 | else if (FLOATP (AREF (spec, FONT_SIZE_INDEX))) | |
2709 | size = font_pixel_size (f, spec); | |
2710 | else | |
2711 | size = 0; | |
2712 | ||
c2f5bfd6 | 2713 | ftype = AREF (spec, FONT_TYPE_INDEX); |
4007dd1c | 2714 | for (i = FONT_FOUNDRY_INDEX; i <= FONT_REGISTRY_INDEX; i++) |
35027d0c | 2715 | ASET (scratch_font_spec, i, AREF (spec, i)); |
4007dd1c | 2716 | for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++) |
56201685 PE |
2717 | if (i != FONT_SPACING_INDEX) |
2718 | { | |
2719 | ASET (scratch_font_spec, i, Qnil); | |
2720 | if (! NILP (AREF (spec, i))) | |
2721 | need_filtering = 1; | |
2722 | } | |
aa50ca2f | 2723 | ASET (scratch_font_spec, FONT_SPACING_INDEX, AREF (spec, FONT_SPACING_INDEX)); |
35027d0c KH |
2724 | ASET (scratch_font_spec, FONT_EXTRA_INDEX, AREF (spec, FONT_EXTRA_INDEX)); |
2725 | ||
c2f5bfd6 | 2726 | for (i = 0; driver_list; driver_list = driver_list->next) |
417a1b10 KH |
2727 | if (driver_list->on |
2728 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
c2f5bfd6 | 2729 | { |
ca4da08a | 2730 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
c2f5bfd6 | 2731 | |
e4c93315 | 2732 | ASET (scratch_font_spec, FONT_TYPE_INDEX, driver_list->driver->type); |
4007dd1c KH |
2733 | val = assoc_no_quit (scratch_font_spec, XCDR (cache)); |
2734 | if (CONSP (val)) | |
2735 | val = XCDR (val); | |
2736 | else | |
c2f5bfd6 | 2737 | { |
4007dd1c | 2738 | Lisp_Object copy; |
35027d0c | 2739 | |
4007dd1c | 2740 | val = driver_list->driver->list (frame, scratch_font_spec); |
72d36834 KH |
2741 | if (NILP (val)) |
2742 | val = null_vector; | |
2743 | else | |
2744 | val = Fvconcat (1, &val); | |
92470028 | 2745 | copy = copy_font_spec (scratch_font_spec); |
4007dd1c KH |
2746 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2747 | XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache))); | |
c2f5bfd6 | 2748 | } |
7d56b2dd KH |
2749 | if (ASIZE (val) > 0 |
2750 | && (need_filtering | |
2751 | || ! NILP (Vface_ignored_fonts))) | |
2752 | val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size); | |
72d36834 KH |
2753 | if (ASIZE (val) > 0) |
2754 | list = Fcons (val, list); | |
c2f5bfd6 | 2755 | } |
35027d0c | 2756 | |
72d36834 KH |
2757 | list = Fnreverse (list); |
2758 | FONT_ADD_LOG ("list", spec, list); | |
2759 | return list; | |
c2f5bfd6 KH |
2760 | } |
2761 | ||
45eb10fb | 2762 | |
35027d0c KH |
2763 | /* Return a font entity matching with SPEC on FRAME. ATTRS, if non |
2764 | nil, is an array of face's attributes, which specifies preferred | |
2765 | font-related attributes. */ | |
45eb10fb | 2766 | |
e950d6f1 | 2767 | static Lisp_Object |
971de7fb | 2768 | font_matching_entity (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
e950d6f1 | 2769 | { |
e950d6f1 KH |
2770 | struct font_driver_list *driver_list = f->font_driver_list; |
2771 | Lisp_Object ftype, size, entity; | |
35027d0c | 2772 | Lisp_Object frame; |
92470028 | 2773 | Lisp_Object work = copy_font_spec (spec); |
e950d6f1 | 2774 | |
35027d0c | 2775 | XSETFRAME (frame, f); |
e950d6f1 KH |
2776 | ftype = AREF (spec, FONT_TYPE_INDEX); |
2777 | size = AREF (spec, FONT_SIZE_INDEX); | |
819ab95f | 2778 | |
8d0e382e AR |
2779 | if (FLOATP (size)) |
2780 | ASET (work, FONT_SIZE_INDEX, make_number (font_pixel_size (f, spec))); | |
819ab95f KH |
2781 | FONT_SET_STYLE (work, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); |
2782 | FONT_SET_STYLE (work, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
2783 | FONT_SET_STYLE (work, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
2784 | ||
e950d6f1 KH |
2785 | entity = Qnil; |
2786 | for (; driver_list; driver_list = driver_list->next) | |
2787 | if (driver_list->on | |
2788 | && (NILP (ftype) || EQ (driver_list->driver->type, ftype))) | |
2789 | { | |
ca4da08a | 2790 | Lisp_Object cache = font_get_cache (f, driver_list->driver); |
7cee5d63 | 2791 | Lisp_Object copy; |
e950d6f1 | 2792 | |
819ab95f KH |
2793 | ASET (work, FONT_TYPE_INDEX, driver_list->driver->type); |
2794 | entity = assoc_no_quit (work, XCDR (cache)); | |
7cee5d63 | 2795 | if (CONSP (entity)) |
e950d6f1 KH |
2796 | entity = XCDR (entity); |
2797 | else | |
2798 | { | |
819ab95f | 2799 | entity = driver_list->driver->match (frame, work); |
92470028 | 2800 | copy = copy_font_spec (work); |
7cee5d63 KH |
2801 | ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type); |
2802 | XSETCDR (cache, Fcons (Fcons (copy, entity), XCDR (cache))); | |
e950d6f1 KH |
2803 | } |
2804 | if (! NILP (entity)) | |
2805 | break; | |
2806 | } | |
652b9560 | 2807 | FONT_ADD_LOG ("match", work, entity); |
e950d6f1 KH |
2808 | return entity; |
2809 | } | |
2810 | ||
45eb10fb KH |
2811 | |
2812 | /* Open a font of ENTITY and PIXEL_SIZE on frame F, and return the | |
2813 | opened font object. */ | |
2814 | ||
c2f5bfd6 | 2815 | static Lisp_Object |
971de7fb | 2816 | font_open_entity (FRAME_PTR f, Lisp_Object entity, int pixel_size) |
c2f5bfd6 KH |
2817 | { |
2818 | struct font_driver_list *driver_list; | |
43c0454d | 2819 | Lisp_Object objlist, size, val, font_object; |
c2f5bfd6 | 2820 | struct font *font; |
d26424c5 | 2821 | int min_width, height; |
dbc05432 | 2822 | int scaled_pixel_size = pixel_size; |
c2f5bfd6 | 2823 | |
d0ab1ebe | 2824 | font_assert (FONT_ENTITY_P (entity)); |
c2f5bfd6 | 2825 | size = AREF (entity, FONT_SIZE_INDEX); |
c2f5bfd6 | 2826 | if (XINT (size) != 0) |
a35dd56b | 2827 | scaled_pixel_size = pixel_size = XINT (size); |
55e41770 | 2828 | else if (CONSP (Vface_font_rescale_alist)) |
a35dd56b | 2829 | scaled_pixel_size = pixel_size * font_rescale_ratio (entity); |
c2f5bfd6 | 2830 | |
35027d0c KH |
2831 | val = AREF (entity, FONT_TYPE_INDEX); |
2832 | for (driver_list = f->font_driver_list; | |
2833 | driver_list && ! EQ (driver_list->driver->type, val); | |
2834 | driver_list = driver_list->next); | |
2835 | if (! driver_list) | |
2836 | return Qnil; | |
c2f5bfd6 | 2837 | |
d0cf45b7 JD |
2838 | for (objlist = AREF (entity, FONT_OBJLIST_INDEX); CONSP (objlist); |
2839 | objlist = XCDR (objlist)) | |
2840 | { | |
2841 | Lisp_Object fn = XCAR (objlist); | |
2842 | if (! NILP (AREF (fn, FONT_TYPE_INDEX)) | |
2843 | && XFONT_OBJECT (fn)->pixel_size == pixel_size) | |
2844 | { | |
2845 | if (driver_list->driver->cached_font_ok == NULL | |
2846 | || driver_list->driver->cached_font_ok (f, fn, entity)) | |
2847 | return fn; | |
2848 | } | |
2849 | } | |
2850 | ||
a35dd56b | 2851 | font_object = driver_list->driver->open (f, entity, scaled_pixel_size); |
66f5ced0 YM |
2852 | if (!NILP (font_object)) |
2853 | ASET (font_object, FONT_SIZE_INDEX, make_number (pixel_size)); | |
652b9560 | 2854 | FONT_ADD_LOG ("open", entity, font_object); |
43c0454d | 2855 | if (NILP (font_object)) |
35027d0c KH |
2856 | return Qnil; |
2857 | ASET (entity, FONT_OBJLIST_INDEX, | |
2858 | Fcons (font_object, AREF (entity, FONT_OBJLIST_INDEX))); | |
35027d0c KH |
2859 | num_fonts++; |
2860 | ||
2861 | font = XFONT_OBJECT (font_object); | |
2862 | min_width = (font->min_width ? font->min_width | |
2863 | : font->average_width ? font->average_width | |
2864 | : font->space_width ? font->space_width | |
2865 | : 1); | |
d26424c5 | 2866 | height = (font->height ? font->height : 1); |
819e81df | 2867 | #ifdef HAVE_WINDOW_SYSTEM |
35027d0c KH |
2868 | FRAME_X_DISPLAY_INFO (f)->n_fonts++; |
2869 | if (FRAME_X_DISPLAY_INFO (f)->n_fonts == 1) | |
43c0454d | 2870 | { |
35027d0c | 2871 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width; |
d26424c5 | 2872 | FRAME_SMALLEST_FONT_HEIGHT (f) = height; |
35027d0c KH |
2873 | fonts_changed_p = 1; |
2874 | } | |
2875 | else | |
2876 | { | |
2877 | if (FRAME_SMALLEST_CHAR_WIDTH (f) > min_width) | |
2878 | FRAME_SMALLEST_CHAR_WIDTH (f) = min_width, fonts_changed_p = 1; | |
d26424c5 KH |
2879 | if (FRAME_SMALLEST_FONT_HEIGHT (f) > height) |
2880 | FRAME_SMALLEST_FONT_HEIGHT (f) = height, fonts_changed_p = 1; | |
43c0454d | 2881 | } |
819e81df | 2882 | #endif |
43c0454d KH |
2883 | |
2884 | return font_object; | |
c2f5bfd6 KH |
2885 | } |
2886 | ||
45eb10fb KH |
2887 | |
2888 | /* Close FONT_OBJECT that is opened on frame F. */ | |
2889 | ||
239f9db9 | 2890 | static void |
971de7fb | 2891 | font_close_object (FRAME_PTR f, Lisp_Object font_object) |
c2f5bfd6 | 2892 | { |
35027d0c | 2893 | struct font *font = XFONT_OBJECT (font_object); |
c2f5bfd6 | 2894 | |
5e634ec9 KH |
2895 | if (NILP (AREF (font_object, FONT_TYPE_INDEX))) |
2896 | /* Already closed. */ | |
2897 | return; | |
652b9560 | 2898 | FONT_ADD_LOG ("close", font_object, Qnil); |
5e634ec9 | 2899 | font->driver->close (f, font); |
819e81df | 2900 | #ifdef HAVE_WINDOW_SYSTEM |
5e634ec9 KH |
2901 | font_assert (FRAME_X_DISPLAY_INFO (f)->n_fonts); |
2902 | FRAME_X_DISPLAY_INFO (f)->n_fonts--; | |
819e81df | 2903 | #endif |
5e634ec9 | 2904 | num_fonts--; |
c2f5bfd6 KH |
2905 | } |
2906 | ||
45eb10fb | 2907 | |
1701724c KH |
2908 | /* Return 1 if FONT on F has a glyph for character C, 0 if not, -1 if |
2909 | FONT is a font-entity and it must be opened to check. */ | |
45eb10fb | 2910 | |
c2f5bfd6 | 2911 | int |
971de7fb | 2912 | font_has_char (FRAME_PTR f, Lisp_Object font, int c) |
c2f5bfd6 | 2913 | { |
1b834a8d | 2914 | struct font *fontp; |
c2f5bfd6 | 2915 | |
1b834a8d KH |
2916 | if (FONT_ENTITY_P (font)) |
2917 | { | |
2918 | Lisp_Object type = AREF (font, FONT_TYPE_INDEX); | |
2919 | struct font_driver_list *driver_list; | |
2920 | ||
2921 | for (driver_list = f->font_driver_list; | |
2922 | driver_list && ! EQ (driver_list->driver->type, type); | |
2923 | driver_list = driver_list->next); | |
2924 | if (! driver_list) | |
2925 | return 0; | |
2926 | if (! driver_list->driver->has_char) | |
2927 | return -1; | |
2928 | return driver_list->driver->has_char (font, c); | |
2929 | } | |
2930 | ||
d0ab1ebe | 2931 | font_assert (FONT_OBJECT_P (font)); |
35027d0c | 2932 | fontp = XFONT_OBJECT (font); |
1b834a8d KH |
2933 | if (fontp->driver->has_char) |
2934 | { | |
35027d0c | 2935 | int result = fontp->driver->has_char (font, c); |
1b834a8d KH |
2936 | |
2937 | if (result >= 0) | |
2938 | return result; | |
2939 | } | |
2940 | return (fontp->driver->encode_char (fontp, c) != FONT_INVALID_CODE); | |
c2f5bfd6 KH |
2941 | } |
2942 | ||
45eb10fb KH |
2943 | |
2944 | /* Return the glyph ID of FONT_OBJECT for character C. */ | |
2945 | ||
2f7c71a1 | 2946 | static unsigned |
971de7fb | 2947 | font_encode_char (Lisp_Object font_object, int c) |
c2f5bfd6 | 2948 | { |
35027d0c | 2949 | struct font *font; |
c2f5bfd6 | 2950 | |
d0ab1ebe | 2951 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2952 | font = XFONT_OBJECT (font_object); |
c2f5bfd6 KH |
2953 | return font->driver->encode_char (font, c); |
2954 | } | |
2955 | ||
45eb10fb KH |
2956 | |
2957 | /* Return the name of FONT_OBJECT. */ | |
2958 | ||
ef18374f | 2959 | Lisp_Object |
971de7fb | 2960 | font_get_name (Lisp_Object font_object) |
c2f5bfd6 | 2961 | { |
d0ab1ebe | 2962 | font_assert (FONT_OBJECT_P (font_object)); |
35027d0c | 2963 | return AREF (font_object, FONT_NAME_INDEX); |
ef18374f KH |
2964 | } |
2965 | ||
45eb10fb | 2966 | |
05802645 CY |
2967 | /* Create a new font spec from FONT_NAME, and return it. If FONT_NAME |
2968 | could not be parsed by font_parse_name, return Qnil. */ | |
2969 | ||
35027d0c | 2970 | Lisp_Object |
971de7fb | 2971 | font_spec_from_name (Lisp_Object font_name) |
35027d0c | 2972 | { |
05802645 | 2973 | Lisp_Object spec = Ffont_spec (0, NULL); |
35027d0c | 2974 | |
05802645 | 2975 | CHECK_STRING (font_name); |
51b59d79 | 2976 | if (font_parse_name (SSDATA (font_name), spec) == -1) |
05802645 CY |
2977 | return Qnil; |
2978 | font_put_extra (spec, QCname, font_name); | |
42707278 | 2979 | font_put_extra (spec, QCuser_spec, font_name); |
05802645 | 2980 | return spec; |
35027d0c KH |
2981 | } |
2982 | ||
45eb10fb | 2983 | |
35027d0c | 2984 | void |
971de7fb | 2985 | font_clear_prop (Lisp_Object *attrs, enum font_property_index prop) |
35027d0c KH |
2986 | { |
2987 | Lisp_Object font = attrs[LFACE_FONT_INDEX]; | |
45eb10fb | 2988 | |
35027d0c KH |
2989 | if (! FONTP (font)) |
2990 | return; | |
42707278 | 2991 | |
483670b5 KH |
2992 | if (! NILP (Ffont_get (font, QCname))) |
2993 | { | |
92470028 | 2994 | font = copy_font_spec (font); |
483670b5 KH |
2995 | font_put_extra (font, QCname, Qnil); |
2996 | } | |
2997 | ||
35027d0c | 2998 | if (NILP (AREF (font, prop)) |
e234927a CY |
2999 | && prop != FONT_FAMILY_INDEX |
3000 | && prop != FONT_FOUNDRY_INDEX | |
3001 | && prop != FONT_WIDTH_INDEX | |
4007dd1c | 3002 | && prop != FONT_SIZE_INDEX) |
35027d0c | 3003 | return; |
483670b5 | 3004 | if (EQ (font, attrs[LFACE_FONT_INDEX])) |
92470028 | 3005 | font = copy_font_spec (font); |
35027d0c | 3006 | ASET (font, prop, Qnil); |
4007dd1c | 3007 | if (prop == FONT_FAMILY_INDEX || prop == FONT_FOUNDRY_INDEX) |
35027d0c | 3008 | { |
4007dd1c | 3009 | if (prop == FONT_FAMILY_INDEX) |
962e8aa9 CY |
3010 | { |
3011 | ASET (font, FONT_FOUNDRY_INDEX, Qnil); | |
3012 | /* If we are setting the font family, we must also clear | |
3013 | FONT_WIDTH_INDEX to avoid rejecting families that lack | |
3014 | support for some widths. */ | |
3015 | ASET (font, FONT_WIDTH_INDEX, Qnil); | |
3016 | } | |
35027d0c | 3017 | ASET (font, FONT_ADSTYLE_INDEX, Qnil); |
4007dd1c | 3018 | ASET (font, FONT_REGISTRY_INDEX, Qnil); |
35027d0c KH |
3019 | ASET (font, FONT_SIZE_INDEX, Qnil); |
3020 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3021 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3022 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3023 | } | |
3024 | else if (prop == FONT_SIZE_INDEX) | |
3025 | { | |
3026 | ASET (font, FONT_DPI_INDEX, Qnil); | |
3027 | ASET (font, FONT_SPACING_INDEX, Qnil); | |
3028 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
3029 | } | |
e234927a CY |
3030 | else if (prop == FONT_WIDTH_INDEX) |
3031 | ASET (font, FONT_AVGWIDTH_INDEX, Qnil); | |
35027d0c KH |
3032 | attrs[LFACE_FONT_INDEX] = font; |
3033 | } | |
3034 | ||
56dd2d86 EZ |
3035 | /* Select a font from ENTITIES (list of font-entity vectors) that |
3036 | supports C and is the best match for ATTRS and PIXEL_SIZE. */ | |
988a7ddb KH |
3037 | |
3038 | static Lisp_Object | |
971de7fb | 3039 | font_select_entity (Lisp_Object frame, Lisp_Object entities, Lisp_Object *attrs, int pixel_size, int c) |
988a7ddb KH |
3040 | { |
3041 | Lisp_Object font_entity; | |
3042 | Lisp_Object prefer; | |
988a7ddb KH |
3043 | int result, i; |
3044 | FRAME_PTR f = XFRAME (frame); | |
3045 | ||
72d36834 KH |
3046 | if (NILP (XCDR (entities)) |
3047 | && ASIZE (XCAR (entities)) == 1) | |
988a7ddb | 3048 | { |
72d36834 | 3049 | font_entity = AREF (XCAR (entities), 0); |
988a7ddb KH |
3050 | if (c < 0 |
3051 | || (result = font_has_char (f, font_entity, c)) > 0) | |
3052 | return font_entity; | |
3053 | return Qnil; | |
3054 | } | |
3055 | ||
3056 | /* Sort fonts by properties specified in ATTRS. */ | |
3057 | prefer = scratch_font_prefer; | |
3058 | ||
3059 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3060 | ASET (prefer, i, Qnil); | |
3061 | if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3062 | { | |
3063 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3064 | ||
3065 | for (i = FONT_WEIGHT_INDEX; i <= FONT_SIZE_INDEX; i++) | |
3066 | ASET (prefer, i, AREF (face_font, i)); | |
3067 | } | |
3068 | if (NILP (AREF (prefer, FONT_WEIGHT_INDEX))) | |
3069 | FONT_SET_STYLE (prefer, FONT_WEIGHT_INDEX, attrs[LFACE_WEIGHT_INDEX]); | |
3070 | if (NILP (AREF (prefer, FONT_SLANT_INDEX))) | |
3071 | FONT_SET_STYLE (prefer, FONT_SLANT_INDEX, attrs[LFACE_SLANT_INDEX]); | |
3072 | if (NILP (AREF (prefer, FONT_WIDTH_INDEX))) | |
3073 | FONT_SET_STYLE (prefer, FONT_WIDTH_INDEX, attrs[LFACE_SWIDTH_INDEX]); | |
3074 | ASET (prefer, FONT_SIZE_INDEX, make_number (pixel_size)); | |
988a7ddb | 3075 | |
2645d15b | 3076 | return font_sort_entities (entities, prefer, frame, c); |
988a7ddb KH |
3077 | } |
3078 | ||
56dd2d86 EZ |
3079 | /* Return a font-entity that satisfies SPEC and is the best match for |
3080 | face's font related attributes in ATTRS. C, if not negative, is a | |
1701724c | 3081 | character that the entity must support. */ |
c2f5bfd6 KH |
3082 | |
3083 | Lisp_Object | |
971de7fb | 3084 | font_find_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec, int c) |
c2f5bfd6 | 3085 | { |
4007dd1c | 3086 | Lisp_Object work; |
72d36834 | 3087 | Lisp_Object frame, entities, val; |
78834453 | 3088 | Lisp_Object foundry[3], *family, registry[3], adstyle[3]; |
1d1e1245 | 3089 | int pixel_size; |
72d36834 | 3090 | int i, j, k, l; |
d0a47776 KH |
3091 | |
3092 | registry[0] = AREF (spec, FONT_REGISTRY_INDEX); | |
3093 | if (NILP (registry[0])) | |
3094 | { | |
edfda783 | 3095 | registry[0] = DEFAULT_ENCODING; |
d0a47776 KH |
3096 | registry[1] = Qascii_0; |
3097 | registry[2] = null_vector; | |
3098 | } | |
3099 | else | |
3100 | registry[1] = null_vector; | |
c2f5bfd6 | 3101 | |
4007dd1c | 3102 | if (c >= 0 && ! NILP (AREF (spec, FONT_REGISTRY_INDEX))) |
fe5ddfbc | 3103 | { |
35027d0c | 3104 | struct charset *encoding, *repertory; |
1701724c | 3105 | |
4007dd1c KH |
3106 | if (font_registry_charsets (AREF (spec, FONT_REGISTRY_INDEX), |
3107 | &encoding, &repertory) < 0) | |
35027d0c | 3108 | return Qnil; |
72d36834 KH |
3109 | if (repertory |
3110 | && ENCODE_CHAR (repertory, c) == CHARSET_INVALID_CODE (repertory)) | |
3111 | return Qnil; | |
35027d0c KH |
3112 | else if (c > encoding->max_char) |
3113 | return Qnil; | |
c2f5bfd6 KH |
3114 | } |
3115 | ||
92470028 | 3116 | work = copy_font_spec (spec); |
227f12fa | 3117 | ASET (work, FONT_TYPE_INDEX, AREF (spec, FONT_TYPE_INDEX)); |
35027d0c | 3118 | XSETFRAME (frame, f); |
1d1e1245 | 3119 | pixel_size = font_pixel_size (f, spec); |
dbc05432 | 3120 | if (pixel_size == 0 && INTEGERP (attrs[LFACE_HEIGHT_INDEX])) |
1d1e1245 KH |
3121 | { |
3122 | double pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3123 | ||
3124 | pixel_size = POINT_TO_PIXEL (pt / 10, f->resy); | |
3125 | } | |
4007dd1c KH |
3126 | ASET (work, FONT_SIZE_INDEX, Qnil); |
3127 | foundry[0] = AREF (work, FONT_FOUNDRY_INDEX); | |
3128 | if (! NILP (foundry[0])) | |
3129 | foundry[1] = null_vector; | |
3130 | else if (STRINGP (attrs[LFACE_FOUNDRY_INDEX])) | |
3131 | { | |
071132a9 | 3132 | val = attrs[LFACE_FOUNDRY_INDEX]; |
51b59d79 | 3133 | foundry[0] = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
4007dd1c KH |
3134 | foundry[1] = Qnil; |
3135 | foundry[2] = null_vector; | |
3136 | } | |
3137 | else | |
3138 | foundry[0] = Qnil, foundry[1] = null_vector; | |
3139 | ||
22459668 KH |
3140 | adstyle[0] = AREF (work, FONT_ADSTYLE_INDEX); |
3141 | if (! NILP (adstyle[0])) | |
3142 | adstyle[1] = null_vector; | |
3143 | else if (FONTP (attrs[LFACE_FONT_INDEX])) | |
3144 | { | |
3145 | Lisp_Object face_font = attrs[LFACE_FONT_INDEX]; | |
3146 | ||
3147 | if (! NILP (AREF (face_font, FONT_ADSTYLE_INDEX))) | |
3148 | { | |
3149 | adstyle[0] = AREF (face_font, FONT_ADSTYLE_INDEX); | |
3150 | adstyle[1] = Qnil; | |
3151 | adstyle[2] = null_vector; | |
3152 | } | |
3153 | else | |
3154 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3155 | } | |
3156 | else | |
3157 | adstyle[0] = Qnil, adstyle[1] = null_vector; | |
3158 | ||
3159 | ||
4007dd1c KH |
3160 | val = AREF (work, FONT_FAMILY_INDEX); |
3161 | if (NILP (val) && STRINGP (attrs[LFACE_FAMILY_INDEX])) | |
071132a9 KH |
3162 | { |
3163 | val = attrs[LFACE_FAMILY_INDEX]; | |
51b59d79 | 3164 | val = font_intern_prop (SSDATA (val), SBYTES (val), 1); |
071132a9 | 3165 | } |
4007dd1c KH |
3166 | if (NILP (val)) |
3167 | { | |
3168 | family = alloca ((sizeof family[0]) * 2); | |
3169 | family[0] = Qnil; | |
3170 | family[1] = null_vector; /* terminator. */ | |
3171 | } | |
3172 | else | |
3173 | { | |
3174 | Lisp_Object alters | |
819ab95f | 3175 | = Fassoc_string (val, Vface_alternative_font_family_alist, |
7107c29e | 3176 | /* Font family names are case-sensitive under NS. */ |
819ab95f KH |
3177 | #ifndef HAVE_NS |
3178 | Qt | |
3179 | #else | |
3180 | Qnil | |
3181 | #endif | |
3182 | ); | |
4007dd1c KH |
3183 | |
3184 | if (! NILP (alters)) | |
3185 | { | |
3186 | family = alloca ((sizeof family[0]) * (XINT (Flength (alters)) + 2)); | |
3187 | for (i = 0; CONSP (alters); i++, alters = XCDR (alters)) | |
3188 | family[i] = XCAR (alters); | |
3189 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3190 | family[i++] = Qnil; | |
3191 | family[i] = null_vector; | |
3192 | } | |
3193 | else | |
3194 | { | |
3195 | family = alloca ((sizeof family[0]) * 3); | |
3196 | i = 0; | |
3197 | family[i++] = val; | |
3198 | if (NILP (AREF (spec, FONT_FAMILY_INDEX))) | |
3199 | family[i++] = Qnil; | |
3200 | family[i] = null_vector; | |
3201 | } | |
3202 | } | |
3203 | ||
d0a47776 | 3204 | for (i = 0; SYMBOLP (family[i]); i++) |
4007dd1c | 3205 | { |
d0a47776 KH |
3206 | ASET (work, FONT_FAMILY_INDEX, family[i]); |
3207 | for (j = 0; SYMBOLP (foundry[j]); j++) | |
4007dd1c | 3208 | { |
d0a47776 KH |
3209 | ASET (work, FONT_FOUNDRY_INDEX, foundry[j]); |
3210 | for (k = 0; SYMBOLP (registry[k]); k++) | |
3211 | { | |
904a2e0e | 3212 | ASET (work, FONT_REGISTRY_INDEX, registry[k]); |
22459668 KH |
3213 | for (l = 0; SYMBOLP (adstyle[l]); l++) |
3214 | { | |
3215 | ASET (work, FONT_ADSTYLE_INDEX, adstyle[l]); | |
3216 | entities = font_list_entities (frame, work); | |
72d36834 | 3217 | if (! NILP (entities)) |
988a7ddb KH |
3218 | { |
3219 | val = font_select_entity (frame, entities, | |
3220 | attrs, pixel_size, c); | |
3221 | if (! NILP (val)) | |
637fa988 | 3222 | return val; |
988a7ddb | 3223 | } |
22459668 | 3224 | } |
d0a47776 | 3225 | } |
4007dd1c | 3226 | } |
4007dd1c | 3227 | } |
d0a47776 | 3228 | return Qnil; |
1701724c | 3229 | } |
45eb10fb KH |
3230 | |
3231 | ||
c2f5bfd6 | 3232 | Lisp_Object |
971de7fb | 3233 | font_open_for_lface (FRAME_PTR f, Lisp_Object entity, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3234 | { |
9331887d | 3235 | int size; |
c2f5bfd6 | 3236 | |
4007dd1c KH |
3237 | if (INTEGERP (AREF (entity, FONT_SIZE_INDEX)) |
3238 | && XINT (AREF (entity, FONT_SIZE_INDEX)) > 0) | |
3239 | size = XINT (AREF (entity, FONT_SIZE_INDEX)); | |
3240 | else if (FONT_SPEC_P (spec) && ! NILP (AREF (spec, FONT_SIZE_INDEX))) | |
1d1e1245 | 3241 | size = font_pixel_size (f, spec); |
733fd013 KH |
3242 | else |
3243 | { | |
50b0cd29 CY |
3244 | double pt; |
3245 | if (INTEGERP (attrs[LFACE_HEIGHT_INDEX])) | |
3246 | pt = XINT (attrs[LFACE_HEIGHT_INDEX]); | |
3247 | else | |
3248 | { | |
3249 | struct face *def = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
3250 | Lisp_Object height = def->lface[LFACE_HEIGHT_INDEX]; | |
3251 | if (INTEGERP (height)) | |
3252 | pt = XINT (height); | |
3253 | else | |
3254 | abort(); /* We should never end up here. */ | |
3255 | } | |
733fd013 KH |
3256 | |
3257 | pt /= 10; | |
3258 | size = POINT_TO_PIXEL (pt, f->resy); | |
ed96cde8 AR |
3259 | #ifdef HAVE_NS |
3260 | if (size == 0) | |
3261 | { | |
3262 | Lisp_Object ffsize = get_frame_param(f, Qfontsize); | |
3263 | size = NUMBERP (ffsize) ? POINT_TO_PIXEL (XINT (ffsize), f->resy) : 0; | |
3264 | } | |
3265 | #endif | |
733fd013 | 3266 | } |
c2f5bfd6 KH |
3267 | return font_open_entity (f, entity, size); |
3268 | } | |
3269 | ||
45eb10fb | 3270 | |
56dd2d86 EZ |
3271 | /* Find a font that satisfies SPEC and is the best match for |
3272 | face's attributes in ATTRS on FRAME, and return the opened | |
35027d0c | 3273 | font-object. */ |
45eb10fb | 3274 | |
35027d0c | 3275 | Lisp_Object |
971de7fb | 3276 | font_load_for_lface (FRAME_PTR f, Lisp_Object *attrs, Lisp_Object spec) |
c2f5bfd6 | 3277 | { |
637fa988 | 3278 | Lisp_Object entity, name; |
ef18374f | 3279 | |
908567ef | 3280 | entity = font_find_for_lface (f, attrs, spec, -1); |
35027d0c | 3281 | if (NILP (entity)) |
ef18374f | 3282 | { |
35027d0c | 3283 | /* No font is listed for SPEC, but each font-backend may have |
56dd2d86 | 3284 | different criteria about "font matching". So, try it. */ |
35027d0c KH |
3285 | entity = font_matching_entity (f, attrs, spec); |
3286 | if (NILP (entity)) | |
3287 | return Qnil; | |
c2f5bfd6 | 3288 | } |
537b04b9 | 3289 | /* Don't lose the original name that was put in initially. We need |
637fa988 JD |
3290 | it to re-apply the font when font parameters (like hinting or dpi) have |
3291 | changed. */ | |
3292 | entity = font_open_for_lface (f, entity, attrs, spec); | |
8096a0ff YM |
3293 | if (!NILP (entity)) |
3294 | { | |
42707278 JD |
3295 | name = Ffont_get (spec, QCuser_spec); |
3296 | if (STRINGP (name)) font_put_extra (entity, QCuser_spec, name); | |
8096a0ff | 3297 | } |
637fa988 | 3298 | return entity; |
c2f5bfd6 KH |
3299 | } |
3300 | ||
45eb10fb KH |
3301 | |
3302 | /* Make FACE on frame F ready to use the font opened for FACE. */ | |
3303 | ||
c2f5bfd6 | 3304 | void |
971de7fb | 3305 | font_prepare_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3306 | { |
35027d0c KH |
3307 | if (face->font->driver->prepare_face) |
3308 | face->font->driver->prepare_face (f, face); | |
c2f5bfd6 KH |
3309 | } |
3310 | ||
45eb10fb KH |
3311 | |
3312 | /* Make FACE on frame F stop using the font opened for FACE. */ | |
3313 | ||
c2f5bfd6 | 3314 | void |
971de7fb | 3315 | font_done_for_face (FRAME_PTR f, struct face *face) |
c2f5bfd6 | 3316 | { |
35027d0c KH |
3317 | if (face->font->driver->done_face) |
3318 | face->font->driver->done_face (f, face); | |
c2f5bfd6 KH |
3319 | face->extra = NULL; |
3320 | } | |
3321 | ||
45eb10fb | 3322 | |
56dd2d86 | 3323 | /* Open a font that is a match for font-spec SPEC on frame F. If no proper |
c50b7e98 | 3324 | font is found, return Qnil. */ |
45eb10fb | 3325 | |
c2f5bfd6 | 3326 | Lisp_Object |
971de7fb | 3327 | font_open_by_spec (FRAME_PTR f, Lisp_Object spec) |
c2f5bfd6 | 3328 | { |
c50b7e98 | 3329 | Lisp_Object attrs[LFACE_VECTOR_SIZE]; |
a9262bb8 | 3330 | |
4007dd1c KH |
3331 | /* We set up the default font-related attributes of a face to prefer |
3332 | a moderate font. */ | |
3333 | attrs[LFACE_FAMILY_INDEX] = attrs[LFACE_FOUNDRY_INDEX] = Qnil; | |
3334 | attrs[LFACE_SWIDTH_INDEX] = attrs[LFACE_WEIGHT_INDEX] | |
3335 | = attrs[LFACE_SLANT_INDEX] = Qnormal; | |
ed96cde8 | 3336 | #ifndef HAVE_NS |
4007dd1c | 3337 | attrs[LFACE_HEIGHT_INDEX] = make_number (120); |
ed96cde8 AR |
3338 | #else |
3339 | attrs[LFACE_HEIGHT_INDEX] = make_number (0); | |
3340 | #endif | |
4007dd1c KH |
3341 | attrs[LFACE_FONT_INDEX] = Qnil; |
3342 | ||
3343 | return font_load_for_lface (f, attrs, spec); | |
c2f5bfd6 KH |
3344 | } |
3345 | ||
3346 | ||
56dd2d86 | 3347 | /* Open a font that matches NAME on frame F. If no proper font is |
c50b7e98 KH |
3348 | found, return Qnil. */ |
3349 | ||
3350 | Lisp_Object | |
42ca4633 | 3351 | font_open_by_name (FRAME_PTR f, const char *name) |
c50b7e98 KH |
3352 | { |
3353 | Lisp_Object args[2]; | |
581e51e8 | 3354 | Lisp_Object spec, ret; |
c50b7e98 KH |
3355 | |
3356 | args[0] = QCname; | |
3357 | args[1] = make_unibyte_string (name, strlen (name)); | |
3358 | spec = Ffont_spec (2, args); | |
581e51e8 | 3359 | ret = font_open_by_spec (f, spec); |
537b04b9 | 3360 | /* Do not lose name originally put in. */ |
8096a0ff | 3361 | if (!NILP (ret)) |
42707278 | 3362 | font_put_extra (ret, QCuser_spec, args[1]); |
581e51e8 JD |
3363 | |
3364 | return ret; | |
c50b7e98 KH |
3365 | } |
3366 | ||
3367 | ||
c2f5bfd6 KH |
3368 | /* Register font-driver DRIVER. This function is used in two ways. |
3369 | ||
417a1b10 | 3370 | The first is with frame F non-NULL. In this case, make DRIVER |
56dd2d86 | 3371 | available (but not yet activated) on F. All frame creators |
417a1b10 KH |
3372 | (e.g. Fx_create_frame) must call this function at least once with |
3373 | an available font-driver. | |
c2f5bfd6 KH |
3374 | |
3375 | The second is with frame F NULL. In this case, DRIVER is globally | |
3376 | registered in the variable `font_driver_list'. All font-driver | |
3377 | implementations must call this function in its syms_of_XXXX | |
3378 | (e.g. syms_of_xfont). */ | |
3379 | ||
3380 | void | |
971de7fb | 3381 | register_font_driver (struct font_driver *driver, FRAME_PTR f) |
c2f5bfd6 KH |
3382 | { |
3383 | struct font_driver_list *root = f ? f->font_driver_list : font_driver_list; | |
3384 | struct font_driver_list *prev, *list; | |
3385 | ||
3386 | if (f && ! driver->draw) | |
43a1d19b | 3387 | error ("Unusable font driver for a frame: %s", |
c2f5bfd6 KH |
3388 | SDATA (SYMBOL_NAME (driver->type))); |
3389 | ||
3390 | for (prev = NULL, list = root; list; prev = list, list = list->next) | |
cf23b845 | 3391 | if (EQ (list->driver->type, driver->type)) |
c2f5bfd6 KH |
3392 | error ("Duplicated font driver: %s", SDATA (SYMBOL_NAME (driver->type))); |
3393 | ||
c115043b | 3394 | list = xmalloc (sizeof (struct font_driver_list)); |
417a1b10 | 3395 | list->on = 0; |
c2f5bfd6 KH |
3396 | list->driver = driver; |
3397 | list->next = NULL; | |
3398 | if (prev) | |
3399 | prev->next = list; | |
3400 | else if (f) | |
3401 | f->font_driver_list = list; | |
3402 | else | |
3403 | font_driver_list = list; | |
72606e45 KH |
3404 | if (! f) |
3405 | num_font_drivers++; | |
c2f5bfd6 KH |
3406 | } |
3407 | ||
2ed98482 | 3408 | void |
971de7fb | 3409 | free_font_driver_list (FRAME_PTR f) |
2ed98482 CY |
3410 | { |
3411 | struct font_driver_list *list, *next; | |
3412 | ||
3413 | for (list = f->font_driver_list; list; list = next) | |
3414 | { | |
3415 | next = list->next; | |
3416 | xfree (list); | |
3417 | } | |
3418 | f->font_driver_list = NULL; | |
3419 | } | |
3420 | ||
45eb10fb | 3421 | |
f697fff0 | 3422 | /* Make the frame F use font backends listed in NEW_DRIVERS (list of |
ca4da08a KH |
3423 | symbols, e.g. xft, x). If NEW_DRIVERS is t, make F use all |
3424 | available font drivers. If NEW_DRIVERS is nil, finalize all drivers. | |
417a1b10 | 3425 | |
ca4da08a KH |
3426 | A caller must free all realized faces if any in advance. The |
3427 | return value is a list of font backends actually made used on | |
3428 | F. */ | |
e950d6f1 KH |
3429 | |
3430 | Lisp_Object | |
971de7fb | 3431 | font_update_drivers (FRAME_PTR f, Lisp_Object new_drivers) |
417a1b10 KH |
3432 | { |
3433 | Lisp_Object active_drivers = Qnil; | |
417a1b10 KH |
3434 | struct font_driver_list *list; |
3435 | ||
4007dd1c KH |
3436 | /* At first, turn off non-requested drivers, and turn on requested |
3437 | drivers. */ | |
f697fff0 | 3438 | for (list = f->font_driver_list; list; list = list->next) |
4007dd1c | 3439 | { |
13a547c6 | 3440 | struct font_driver *driver = list->driver; |
4007dd1c KH |
3441 | if ((EQ (new_drivers, Qt) || ! NILP (Fmemq (driver->type, new_drivers))) |
3442 | != list->on) | |
3443 | { | |
3444 | if (list->on) | |
3445 | { | |
3446 | if (driver->end_for_frame) | |
3447 | driver->end_for_frame (f); | |
3448 | font_finish_cache (f, driver); | |
3449 | list->on = 0; | |
3450 | } | |
3451 | else | |
3452 | { | |
3453 | if (! driver->start_for_frame | |
3454 | || driver->start_for_frame (f) == 0) | |
3455 | { | |
3456 | font_prepare_cache (f, driver); | |
3457 | list->on = 1; | |
3458 | } | |
3459 | } | |
3460 | } | |
3461 | } | |
3462 | ||
3463 | if (NILP (new_drivers)) | |
3464 | return Qnil; | |
3465 | ||
3466 | if (! EQ (new_drivers, Qt)) | |
3467 | { | |
3468 | /* Re-order the driver list according to new_drivers. */ | |
3306c6dc | 3469 | struct font_driver_list **list_table, **next; |
4007dd1c KH |
3470 | Lisp_Object tail; |
3471 | int i; | |
3472 | ||
3473 | list_table = alloca (sizeof list_table[0] * (num_font_drivers + 1)); | |
3474 | for (i = 0, tail = new_drivers; ! NILP (tail); tail = XCDR (tail)) | |
3475 | { | |
3476 | for (list = f->font_driver_list; list; list = list->next) | |
3477 | if (list->on && EQ (list->driver->type, XCAR (tail))) | |
3478 | break; | |
3479 | if (list) | |
3480 | list_table[i++] = list; | |
3481 | } | |
3482 | for (list = f->font_driver_list; list; list = list->next) | |
3483 | if (! list->on) | |
6136b72f | 3484 | list_table[i++] = list; |
4007dd1c KH |
3485 | list_table[i] = NULL; |
3486 | ||
3306c6dc | 3487 | next = &f->font_driver_list; |
4007dd1c KH |
3488 | for (i = 0; list_table[i]; i++) |
3489 | { | |
3306c6dc AS |
3490 | *next = list_table[i]; |
3491 | next = &(*next)->next; | |
4007dd1c | 3492 | } |
3306c6dc | 3493 | *next = NULL; |
ba98e3a0 SM |
3494 | |
3495 | if (! f->font_driver_list->on) | |
3496 | { /* None of the drivers is enabled: enable them all. | |
3497 | Happens if you set the list of drivers to (xft x) in your .emacs | |
3498 | and then use it under w32 or ns. */ | |
3499 | for (list = f->font_driver_list; list; list = list->next) | |
3500 | { | |
3501 | struct font_driver *driver = list->driver; | |
3502 | eassert (! list->on); | |
3503 | if (! driver->start_for_frame | |
3504 | || driver->start_for_frame (f) == 0) | |
3505 | { | |
3506 | font_prepare_cache (f, driver); | |
3507 | list->on = 1; | |
3508 | } | |
3509 | } | |
3510 | } | |
4007dd1c | 3511 | } |
417a1b10 | 3512 | |
4007dd1c KH |
3513 | for (list = f->font_driver_list; list; list = list->next) |
3514 | if (list->on) | |
3515 | active_drivers = nconc2 (active_drivers, | |
3516 | Fcons (list->driver->type, Qnil)); | |
e950d6f1 | 3517 | return active_drivers; |
417a1b10 KH |
3518 | } |
3519 | ||
f697fff0 | 3520 | int |
971de7fb | 3521 | font_put_frame_data (FRAME_PTR f, struct font_driver *driver, void *data) |
f697fff0 KH |
3522 | { |
3523 | struct font_data_list *list, *prev; | |
3524 | ||
3525 | for (prev = NULL, list = f->font_data_list; list; | |
3526 | prev = list, list = list->next) | |
3527 | if (list->driver == driver) | |
3528 | break; | |
3529 | if (! data) | |
3530 | { | |
3531 | if (list) | |
3532 | { | |
3533 | if (prev) | |
3534 | prev->next = list->next; | |
3535 | else | |
3536 | f->font_data_list = list->next; | |
973e7849 | 3537 | xfree (list); |
f697fff0 KH |
3538 | } |
3539 | return 0; | |
3540 | } | |
3541 | ||
3542 | if (! list) | |
3543 | { | |
c115043b | 3544 | list = xmalloc (sizeof (struct font_data_list)); |
f697fff0 KH |
3545 | list->driver = driver; |
3546 | list->next = f->font_data_list; | |
3547 | f->font_data_list = list; | |
3548 | } | |
3549 | list->data = data; | |
3550 | return 0; | |
3551 | } | |
3552 | ||
3553 | ||
3554 | void * | |
971de7fb | 3555 | font_get_frame_data (FRAME_PTR f, struct font_driver *driver) |
f697fff0 KH |
3556 | { |
3557 | struct font_data_list *list; | |
3558 | ||
3559 | for (list = f->font_data_list; list; list = list->next) | |
3560 | if (list->driver == driver) | |
3561 | break; | |
3562 | if (! list) | |
3563 | return NULL; | |
3564 | return list->data; | |
3565 | } | |
3566 | ||
417a1b10 | 3567 | |
9fa82824 DP |
3568 | /* Sets attributes on a font. Any properties that appear in ALIST and |
3569 | BOOLEAN_PROPERTIES or NON_BOOLEAN_PROPERTIES are set on the font. | |
3570 | BOOLEAN_PROPERTIES and NON_BOOLEAN_PROPERTIES are NULL-terminated | |
3571 | arrays of strings. This function is intended for use by the font | |
3572 | drivers to implement their specific font_filter_properties. */ | |
3573 | void | |
220d91b8 JB |
3574 | font_filter_properties (Lisp_Object font, |
3575 | Lisp_Object alist, | |
3106121c YM |
3576 | const char *const boolean_properties[], |
3577 | const char *const non_boolean_properties[]) | |
9fa82824 DP |
3578 | { |
3579 | Lisp_Object it; | |
3580 | int i; | |
3581 | ||
3582 | /* Set boolean values to Qt or Qnil */ | |
3583 | for (i = 0; boolean_properties[i] != NULL; ++i) | |
3584 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3585 | { | |
3586 | Lisp_Object key = XCAR (XCAR (it)); | |
3587 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3588 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3589 | |
3590 | if (strcmp (boolean_properties[i], keystr) == 0) | |
3591 | { | |
3592 | const char *str = INTEGERP (val) ? (XINT (val) ? "true" : "false") | |
51b59d79 | 3593 | : SYMBOLP (val) ? SSDATA (SYMBOL_NAME (val)) |
9fa82824 DP |
3594 | : "true"; |
3595 | ||
3596 | if (strcmp ("false", str) == 0 || strcmp ("False", str) == 0 | |
3597 | || strcmp ("FALSE", str) == 0 || strcmp ("FcFalse", str) == 0 | |
3598 | || strcmp ("off", str) == 0 || strcmp ("OFF", str) == 0 | |
3599 | || strcmp ("Off", str) == 0) | |
3600 | val = Qnil; | |
3601 | else | |
3602 | val = Qt; | |
3603 | ||
3604 | Ffont_put (font, key, val); | |
3605 | } | |
3606 | } | |
3607 | ||
3608 | for (i = 0; non_boolean_properties[i] != NULL; ++i) | |
3609 | for (it = alist; ! NILP (it); it = XCDR (it)) | |
3610 | { | |
3611 | Lisp_Object key = XCAR (XCAR (it)); | |
3612 | Lisp_Object val = XCDR (XCAR (it)); | |
42a5b22f | 3613 | char *keystr = SSDATA (SYMBOL_NAME (key)); |
9fa82824 DP |
3614 | if (strcmp (non_boolean_properties[i], keystr) == 0) |
3615 | Ffont_put (font, key, val); | |
3616 | } | |
3617 | } | |
3618 | ||
3619 | ||
45eb10fb | 3620 | /* Return the font used to draw character C by FACE at buffer position |
e3ee0340 KH |
3621 | POS in window W. If STRING is non-nil, it is a string containing C |
3622 | at index POS. If C is negative, get C from the current buffer or | |
3623 | STRING. */ | |
45eb10fb | 3624 | |
2f7c71a1 AS |
3625 | static Lisp_Object |
3626 | font_at (int c, EMACS_INT pos, struct face *face, struct window *w, | |
3627 | Lisp_Object string) | |
10d16101 KH |
3628 | { |
3629 | FRAME_PTR f; | |
e3ee0340 | 3630 | int multibyte; |
35027d0c | 3631 | Lisp_Object font_object; |
e3ee0340 | 3632 | |
e500c47d | 3633 | multibyte = (NILP (string) |
4b4deea2 | 3634 | ? ! NILP (BVAR (current_buffer, enable_multibyte_characters)) |
e500c47d | 3635 | : STRING_MULTIBYTE (string)); |
e3ee0340 KH |
3636 | if (c < 0) |
3637 | { | |
3638 | if (NILP (string)) | |
3639 | { | |
e3ee0340 KH |
3640 | if (multibyte) |
3641 | { | |
3642 | EMACS_INT pos_byte = CHAR_TO_BYTE (pos); | |
3643 | ||
3644 | c = FETCH_CHAR (pos_byte); | |
3645 | } | |
3646 | else | |
3647 | c = FETCH_BYTE (pos); | |
3648 | } | |
3649 | else | |
3650 | { | |
3651 | unsigned char *str; | |
3652 | ||
3653 | multibyte = STRING_MULTIBYTE (string); | |
3654 | if (multibyte) | |
3655 | { | |
3656 | EMACS_INT pos_byte = string_char_to_byte (string, pos); | |
3657 | ||
3658 | str = SDATA (string) + pos_byte; | |
62a6e103 | 3659 | c = STRING_CHAR (str); |
e3ee0340 KH |
3660 | } |
3661 | else | |
3662 | c = SDATA (string)[pos]; | |
3663 | } | |
3664 | } | |
10d16101 KH |
3665 | |
3666 | f = XFRAME (w->frame); | |
1385a806 KH |
3667 | if (! FRAME_WINDOW_P (f)) |
3668 | return Qnil; | |
10d16101 KH |
3669 | if (! face) |
3670 | { | |
e3ee0340 | 3671 | int face_id; |
0f8b27ea | 3672 | EMACS_INT endptr; |
e3ee0340 KH |
3673 | |
3674 | if (STRINGP (string)) | |
3675 | face_id = face_at_string_position (w, string, pos, 0, -1, -1, &endptr, | |
10d16101 KH |
3676 | DEFAULT_FACE_ID, 0); |
3677 | else | |
e3ee0340 | 3678 | face_id = face_at_buffer_position (w, pos, -1, -1, &endptr, |
6970f632 | 3679 | pos + 100, 0, -1); |
10d16101 KH |
3680 | face = FACE_FROM_ID (f, face_id); |
3681 | } | |
e3ee0340 KH |
3682 | if (multibyte) |
3683 | { | |
3684 | int face_id = FACE_FOR_CHAR (f, face, c, pos, string); | |
3685 | face = FACE_FROM_ID (f, face_id); | |
3686 | } | |
35027d0c | 3687 | if (! face->font) |
10d16101 | 3688 | return Qnil; |
35027d0c | 3689 | |
35027d0c KH |
3690 | XSETFONT (font_object, face->font); |
3691 | return font_object; | |
3692 | } | |
3693 | ||
3694 | ||
071132a9 KH |
3695 | #ifdef HAVE_WINDOW_SYSTEM |
3696 | ||
3697 | /* Check how many characters after POS (at most to *LIMIT) can be | |
56dd2d86 | 3698 | displayed by the same font in the window W. FACE, if non-NULL, is |
071132a9 KH |
3699 | the face selected for the character at POS. If STRING is not nil, |
3700 | it is the string to check instead of the current buffer. In that | |
3701 | case, FACE must be not NULL. | |
027a33c0 | 3702 | |
071132a9 KH |
3703 | The return value is the font-object for the character at POS. |
3704 | *LIMIT is set to the position where that font can't be used. | |
35027d0c | 3705 | |
071132a9 KH |
3706 | It is assured that the current buffer (or STRING) is multibyte. */ |
3707 | ||
3708 | Lisp_Object | |
971de7fb | 3709 | font_range (EMACS_INT pos, EMACS_INT *limit, struct window *w, struct face *face, Lisp_Object string) |
35027d0c | 3710 | { |
0e5d7800 | 3711 | EMACS_INT pos_byte, ignore; |
35027d0c | 3712 | int c; |
071132a9 | 3713 | Lisp_Object font_object = Qnil; |
35027d0c KH |
3714 | |
3715 | if (NILP (string)) | |
3716 | { | |
35027d0c | 3717 | pos_byte = CHAR_TO_BYTE (pos); |
071132a9 KH |
3718 | if (! face) |
3719 | { | |
3720 | int face_id; | |
3721 | ||
6970f632 CY |
3722 | face_id = face_at_buffer_position (w, pos, 0, 0, &ignore, |
3723 | *limit, 0, -1); | |
071132a9 KH |
3724 | face = FACE_FROM_ID (XFRAME (w->frame), face_id); |
3725 | } | |
35027d0c KH |
3726 | } |
3727 | else | |
3728 | { | |
071132a9 | 3729 | font_assert (face); |
35027d0c KH |
3730 | pos_byte = string_char_to_byte (string, pos); |
3731 | } | |
3732 | ||
071132a9 | 3733 | while (pos < *limit) |
35027d0c | 3734 | { |
071132a9 | 3735 | Lisp_Object category; |
35027d0c KH |
3736 | |
3737 | if (NILP (string)) | |
3738 | FETCH_CHAR_ADVANCE_NO_CHECK (c, pos, pos_byte); | |
3739 | else | |
3740 | FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, string, pos, pos_byte); | |
0e5d7800 | 3741 | category = CHAR_TABLE_REF (Vunicode_category_table, c); |
c805dec0 KH |
3742 | if (INTEGERP (category) |
3743 | && (XINT (category) == UNICODE_CATEGORY_Cf | |
3744 | || CHAR_VARIATION_SELECTOR_P (c))) | |
0e5d7800 | 3745 | continue; |
071132a9 | 3746 | if (NILP (font_object)) |
35027d0c | 3747 | { |
071132a9 KH |
3748 | font_object = font_for_char (face, c, pos - 1, string); |
3749 | if (NILP (font_object)) | |
3750 | return Qnil; | |
35027d0c KH |
3751 | continue; |
3752 | } | |
0e5d7800 KH |
3753 | if (font_encode_char (font_object, c) == FONT_INVALID_CODE) |
3754 | *limit = pos - 1; | |
35027d0c | 3755 | } |
071132a9 | 3756 | return font_object; |
10d16101 | 3757 | } |
071132a9 | 3758 | #endif |
10d16101 | 3759 | |
c2f5bfd6 KH |
3760 | \f |
3761 | /* Lisp API */ | |
3762 | ||
35027d0c | 3763 | DEFUN ("fontp", Ffontp, Sfontp, 1, 2, 0, |
6c8ec042 | 3764 | doc: /* Return t if OBJECT is a font-spec, font-entity, or font-object. |
35027d0c KH |
3765 | Return nil otherwise. |
3766 | Optional 2nd argument EXTRA-TYPE, if non-nil, specifies to check | |
027a33c0 | 3767 | which kind of font it is. It must be one of `font-spec', `font-entity', |
35027d0c | 3768 | `font-object'. */) |
5842a27b | 3769 | (Lisp_Object object, Lisp_Object extra_type) |
c2f5bfd6 | 3770 | { |
35027d0c KH |
3771 | if (NILP (extra_type)) |
3772 | return (FONTP (object) ? Qt : Qnil); | |
3773 | if (EQ (extra_type, Qfont_spec)) | |
3774 | return (FONT_SPEC_P (object) ? Qt : Qnil); | |
3775 | if (EQ (extra_type, Qfont_entity)) | |
3776 | return (FONT_ENTITY_P (object) ? Qt : Qnil); | |
3777 | if (EQ (extra_type, Qfont_object)) | |
3778 | return (FONT_OBJECT_P (object) ? Qt : Qnil); | |
3779 | wrong_type_argument (intern ("font-extra-type"), extra_type); | |
c2f5bfd6 KH |
3780 | } |
3781 | ||
a7ca3326 | 3782 | DEFUN ("font-spec", Ffont_spec, Sfont_spec, 0, MANY, 0, |
45eb10fb KH |
3783 | doc: /* Return a newly created font-spec with arguments as properties. |
3784 | ||
3785 | ARGS must come in pairs KEY VALUE of font properties. KEY must be a | |
3786 | valid font property name listed below: | |
3787 | ||
3788 | `:family', `:weight', `:slant', `:width' | |
3789 | ||
3790 | They are the same as face attributes of the same name. See | |
51c01100 | 3791 | `set-face-attribute'. |
45eb10fb KH |
3792 | |
3793 | `:foundry' | |
3794 | ||
3795 | VALUE must be a string or a symbol specifying the font foundry, e.g. ``misc''. | |
3796 | ||
3797 | `:adstyle' | |
3798 | ||
3799 | VALUE must be a string or a symbol specifying the additional | |
35027d0c | 3800 | typographic style information of a font, e.g. ``sans''. |
45eb10fb KH |
3801 | |
3802 | `:registry' | |
3803 | ||
3804 | VALUE must be a string or a symbol specifying the charset registry and | |
3805 | encoding of a font, e.g. ``iso8859-1''. | |
3806 | ||
3807 | `:size' | |
3808 | ||
3809 | VALUE must be a non-negative integer or a floating point number | |
c423ecca KH |
3810 | specifying the font size. It specifies the font size in pixels (if |
3811 | VALUE is an integer), or in points (if VALUE is a float). | |
2babb359 KH |
3812 | |
3813 | `:name' | |
3814 | ||
7a18a178 | 3815 | VALUE must be a string of XLFD-style or fontconfig-style font name. |
5bdd4dd2 KH |
3816 | |
3817 | `:script' | |
3818 | ||
3819 | VALUE must be a symbol representing a script that the font must | |
209f39ac KH |
3820 | support. It may be a symbol representing a subgroup of a script |
3821 | listed in the variable `script-representative-chars'. | |
c423ecca KH |
3822 | |
3823 | `:lang' | |
3824 | ||
3825 | VALUE must be a symbol of two-letter ISO-639 language names, | |
3826 | e.g. `ja'. | |
3827 | ||
3828 | `:otf' | |
3829 | ||
3830 | VALUE must be a list (SCRIPT-TAG LANGSYS-TAG GSUB [ GPOS ]) to specify | |
3831 | required OpenType features. | |
3832 | ||
3833 | SCRIPT-TAG: OpenType script tag symbol (e.g. `deva'). | |
3834 | LANGSYS-TAG: OpenType language system tag symbol, | |
3835 | or nil for the default language system. | |
3836 | GSUB: List of OpenType GSUB feature tag symbols, or nil if none required. | |
3837 | GPOS: List of OpenType GPOS feature tag symbols, or nil if none required. | |
3838 | ||
3839 | GSUB and GPOS may contain `nil' element. In such a case, the font | |
3840 | must not have any of the remaining elements. | |
3841 | ||
3842 | For instance, if the VALUE is `(thai nil nil (mark))', the font must | |
56dd2d86 | 3843 | be an OpenType font whose GPOS table of `thai' script's default |
c423ecca KH |
3844 | language system must contain `mark' feature. |
3845 | ||
ba3de0e8 | 3846 | usage: (font-spec ARGS...) */) |
f66c7cf8 | 3847 | (ptrdiff_t nargs, Lisp_Object *args) |
c2f5bfd6 | 3848 | { |
35027d0c | 3849 | Lisp_Object spec = font_make_spec (); |
f66c7cf8 | 3850 | ptrdiff_t i; |
c2f5bfd6 KH |
3851 | |
3852 | for (i = 0; i < nargs; i += 2) | |
3853 | { | |
cccd42d5 KH |
3854 | Lisp_Object key = args[i], val; |
3855 | ||
3856 | CHECK_SYMBOL (key); | |
3857 | if (i + 1 >= nargs) | |
3858 | error ("No value for key `%s'", SDATA (SYMBOL_NAME (key))); | |
3859 | val = args[i + 1]; | |
c2f5bfd6 | 3860 | |
35027d0c KH |
3861 | if (EQ (key, QCname)) |
3862 | { | |
3863 | CHECK_STRING (val); | |
51b59d79 | 3864 | font_parse_name (SSDATA (val), spec); |
35027d0c KH |
3865 | font_put_extra (spec, key, val); |
3866 | } | |
c2f5bfd6 | 3867 | else |
4485a28e | 3868 | { |
35027d0c KH |
3869 | int idx = get_font_prop_index (key); |
3870 | ||
3871 | if (idx >= 0) | |
ec6fe57c | 3872 | { |
35027d0c KH |
3873 | val = font_prop_validate (idx, Qnil, val); |
3874 | if (idx < FONT_EXTRA_INDEX) | |
3875 | ASET (spec, idx, val); | |
3876 | else | |
3877 | font_put_extra (spec, key, val); | |
ec6fe57c | 3878 | } |
35027d0c KH |
3879 | else |
3880 | font_put_extra (spec, key, font_prop_validate (0, key, val)); | |
4485a28e | 3881 | } |
e950d6f1 | 3882 | } |
c2f5bfd6 KH |
3883 | return spec; |
3884 | } | |
3885 | ||
92470028 PE |
3886 | /* Return a copy of FONT as a font-spec. */ |
3887 | Lisp_Object | |
3888 | copy_font_spec (Lisp_Object font) | |
35027d0c | 3889 | { |
d26424c5 | 3890 | Lisp_Object new_spec, tail, prev, extra; |
35027d0c KH |
3891 | int i; |
3892 | ||
3893 | CHECK_FONT (font); | |
3894 | new_spec = font_make_spec (); | |
3895 | for (i = 1; i < FONT_EXTRA_INDEX; i++) | |
3896 | ASET (new_spec, i, AREF (font, i)); | |
581e51e8 | 3897 | extra = Fcopy_alist (AREF (font, FONT_EXTRA_INDEX)); |
d26424c5 KH |
3898 | /* We must remove :font-entity property. */ |
3899 | for (prev = Qnil, tail = extra; CONSP (tail); prev = tail, tail = XCDR (tail)) | |
3900 | if (EQ (XCAR (XCAR (tail)), QCfont_entity)) | |
3901 | { | |
3902 | if (NILP (prev)) | |
3903 | extra = XCDR (extra); | |
3904 | else | |
3905 | XSETCDR (prev, XCDR (tail)); | |
3906 | break; | |
3907 | } | |
35027d0c KH |
3908 | ASET (new_spec, FONT_EXTRA_INDEX, extra); |
3909 | return new_spec; | |
3910 | } | |
3911 | ||
92470028 PE |
3912 | /* Merge font-specs FROM and TO, and return a new font-spec. |
3913 | Every specified property in FROM overrides the corresponding | |
3914 | property in TO. */ | |
3915 | Lisp_Object | |
3916 | merge_font_spec (Lisp_Object from, Lisp_Object to) | |
35027d0c KH |
3917 | { |
3918 | Lisp_Object extra, tail; | |
3919 | int i; | |
3920 | ||
3921 | CHECK_FONT (from); | |
3922 | CHECK_FONT (to); | |
92470028 | 3923 | to = copy_font_spec (to); |
35027d0c KH |
3924 | for (i = 0; i < FONT_EXTRA_INDEX; i++) |
3925 | ASET (to, i, AREF (from, i)); | |
3926 | extra = AREF (to, FONT_EXTRA_INDEX); | |
3927 | for (tail = AREF (from, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail)) | |
3928 | if (! EQ (XCAR (XCAR (tail)), Qfont_entity)) | |
3929 | { | |
3930 | Lisp_Object slot = assq_no_quit (XCAR (XCAR (tail)), extra); | |
3931 | ||
3932 | if (! NILP (slot)) | |
3933 | XSETCDR (slot, XCDR (XCAR (tail))); | |
3934 | else | |
3935 | extra = Fcons (Fcons (XCAR (XCAR (tail)), XCDR (XCAR (tail))), extra); | |
3936 | } | |
3937 | ASET (to, FONT_EXTRA_INDEX, extra); | |
3938 | return to; | |
3939 | } | |
c2f5bfd6 | 3940 | |
a7ca3326 | 3941 | DEFUN ("font-get", Ffont_get, Sfont_get, 2, 2, 0, |
45eb10fb | 3942 | doc: /* Return the value of FONT's property KEY. |
5bdd4dd2 | 3943 | FONT is a font-spec, a font-entity, or a font-object. |
a7840ffb | 3944 | KEY is any symbol, but these are reserved for specific meanings: |
5bdd4dd2 | 3945 | :family, :weight, :slant, :width, :foundry, :adstyle, :registry, |
a7840ffb | 3946 | :size, :name, :script, :otf |
5bdd4dd2 | 3947 | See the documentation of `font-spec' for their meanings. |
a7840ffb KH |
3948 | In addition, if FONT is a font-entity or a font-object, values of |
3949 | :script and :otf are different from those of a font-spec as below: | |
3950 | ||
3951 | The value of :script may be a list of scripts that are supported by the font. | |
3952 | ||
3953 | The value of :otf is a cons (GSUB . GPOS) where GSUB and GPOS are lists | |
3954 | representing the OpenType features supported by the font by this form: | |
3955 | ((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
3956 | SCRIPT, LANGSYS, and FEATURE are all symbols representing OpenType | |
3957 | Layout tags. */) | |
5842a27b | 3958 | (Lisp_Object font, Lisp_Object key) |
c2f5bfd6 | 3959 | { |
35027d0c | 3960 | int idx; |
a7840ffb | 3961 | Lisp_Object val; |
c2f5bfd6 | 3962 | |
35027d0c KH |
3963 | CHECK_FONT (font); |
3964 | CHECK_SYMBOL (key); | |
e80e09b4 | 3965 | |
35027d0c | 3966 | idx = get_font_prop_index (key); |
2babb359 KH |
3967 | if (idx >= FONT_WEIGHT_INDEX && idx <= FONT_WIDTH_INDEX) |
3968 | return font_style_symbolic (font, idx, 0); | |
35027d0c | 3969 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) |
c2f5bfd6 | 3970 | return AREF (font, idx); |
a7840ffb KH |
3971 | val = Fassq (key, AREF (font, FONT_EXTRA_INDEX)); |
3972 | if (NILP (val) && EQ (key, QCotf) && FONT_OBJECT_P (font)) | |
3973 | { | |
3974 | struct font *fontp = XFONT_OBJECT (font); | |
a7840ffb | 3975 | |
f6c1c771 KH |
3976 | if (fontp->driver->otf_capability) |
3977 | val = fontp->driver->otf_capability (fontp); | |
a7840ffb | 3978 | else |
f6c1c771 | 3979 | val = Fcons (Qnil, Qnil); |
a7840ffb KH |
3980 | } |
3981 | else | |
3982 | val = Fcdr (val); | |
3983 | return val; | |
c2f5bfd6 KH |
3984 | } |
3985 | ||
51cf11be AS |
3986 | #ifdef HAVE_WINDOW_SYSTEM |
3987 | ||
b1868a1a CY |
3988 | DEFUN ("font-face-attributes", Ffont_face_attributes, Sfont_face_attributes, 1, 2, 0, |
3989 | doc: /* Return a plist of face attributes generated by FONT. | |
3990 | FONT is a font name, a font-spec, a font-entity, or a font-object. | |
3991 | The return value is a list of the form | |
3992 | ||
6f568955 | 3993 | \(:family FAMILY :height HEIGHT :weight WEIGHT :slant SLANT :width WIDTH) |
b1868a1a | 3994 | |
48105a6a | 3995 | where FAMILY, HEIGHT, WEIGHT, SLANT, and WIDTH are face attribute values |
5989ba2f CY |
3996 | compatible with `set-face-attribute'. Some of these key-attribute pairs |
3997 | may be omitted from the list if they are not specified by FONT. | |
b1868a1a | 3998 | |
48105a6a JB |
3999 | The optional argument FRAME specifies the frame that the face attributes |
4000 | are to be displayed on. If omitted, the selected frame is used. */) | |
5842a27b | 4001 | (Lisp_Object font, Lisp_Object frame) |
b1868a1a CY |
4002 | { |
4003 | struct frame *f; | |
4004 | Lisp_Object plist[10]; | |
4005 | Lisp_Object val; | |
5989ba2f | 4006 | int n = 0; |
b1868a1a CY |
4007 | |
4008 | if (NILP (frame)) | |
4009 | frame = selected_frame; | |
4010 | CHECK_LIVE_FRAME (frame); | |
4011 | f = XFRAME (frame); | |
4012 | ||
4013 | if (STRINGP (font)) | |
4014 | { | |
4015 | int fontset = fs_query_fontset (font, 0); | |
4016 | Lisp_Object name = font; | |
4017 | if (fontset >= 0) | |
4018 | font = fontset_ascii (fontset); | |
4019 | font = font_spec_from_name (name); | |
4020 | if (! FONTP (font)) | |
4021 | signal_error ("Invalid font name", name); | |
4022 | } | |
4023 | else if (! FONTP (font)) | |
4024 | signal_error ("Invalid font object", font); | |
4025 | ||
b1868a1a | 4026 | val = AREF (font, FONT_FAMILY_INDEX); |
5989ba2f CY |
4027 | if (! NILP (val)) |
4028 | { | |
4029 | plist[n++] = QCfamily; | |
4030 | plist[n++] = SYMBOL_NAME (val); | |
4031 | } | |
b1868a1a | 4032 | |
b1868a1a CY |
4033 | val = AREF (font, FONT_SIZE_INDEX); |
4034 | if (INTEGERP (val)) | |
4035 | { | |
4036 | Lisp_Object font_dpi = AREF (font, FONT_DPI_INDEX); | |
4037 | int dpi = INTEGERP (font_dpi) ? XINT (font_dpi) : f->resy; | |
5989ba2f | 4038 | plist[n++] = QCheight; |
c3bb5465 | 4039 | plist[n++] = make_number (PIXEL_TO_POINT (XINT (val) * 10, dpi)); |
b1868a1a CY |
4040 | } |
4041 | else if (FLOATP (val)) | |
5989ba2f CY |
4042 | { |
4043 | plist[n++] = QCheight; | |
4044 | plist[n++] = make_number (10 * (int) XFLOAT_DATA (val)); | |
4045 | } | |
b1868a1a | 4046 | |
b1868a1a | 4047 | val = FONT_WEIGHT_FOR_FACE (font); |
5989ba2f CY |
4048 | if (! NILP (val)) |
4049 | { | |
4050 | plist[n++] = QCweight; | |
4051 | plist[n++] = val; | |
4052 | } | |
b1868a1a | 4053 | |
b1868a1a | 4054 | val = FONT_SLANT_FOR_FACE (font); |
5989ba2f CY |
4055 | if (! NILP (val)) |
4056 | { | |
4057 | plist[n++] = QCslant; | |
4058 | plist[n++] = val; | |
4059 | } | |
b1868a1a | 4060 | |
b1868a1a | 4061 | val = FONT_WIDTH_FOR_FACE (font); |
5989ba2f CY |
4062 | if (! NILP (val)) |
4063 | { | |
4064 | plist[n++] = QCwidth; | |
4065 | plist[n++] = val; | |
4066 | } | |
b1868a1a | 4067 | |
5989ba2f | 4068 | return Flist (n, plist); |
b1868a1a | 4069 | } |
c2f5bfd6 | 4070 | |
51cf11be AS |
4071 | #endif |
4072 | ||
a7ca3326 | 4073 | DEFUN ("font-put", Ffont_put, Sfont_put, 3, 3, 0, |
a7840ffb KH |
4074 | doc: /* Set one property of FONT: give property KEY value VAL. |
4075 | FONT is a font-spec, a font-entity, or a font-object. | |
4076 | ||
4077 | If FONT is a font-spec, KEY can be any symbol. But if KEY is the one | |
4078 | accepted by the function `font-spec' (which see), VAL must be what | |
4079 | allowed in `font-spec'. | |
4080 | ||
4081 | If FONT is a font-entity or a font-object, KEY must not be the one | |
4082 | accepted by `font-spec'. */) | |
e1ffae3b | 4083 | (Lisp_Object font, Lisp_Object prop, Lisp_Object val) |
c2f5bfd6 | 4084 | { |
35027d0c | 4085 | int idx; |
c2f5bfd6 | 4086 | |
35027d0c KH |
4087 | idx = get_font_prop_index (prop); |
4088 | if (idx >= 0 && idx < FONT_EXTRA_INDEX) | |
a7840ffb KH |
4089 | { |
4090 | CHECK_FONT_SPEC (font); | |
4091 | ASET (font, idx, font_prop_validate (idx, Qnil, val)); | |
4092 | } | |
c2f5bfd6 | 4093 | else |
a7840ffb KH |
4094 | { |
4095 | if (EQ (prop, QCname) | |
4096 | || EQ (prop, QCscript) | |
4097 | || EQ (prop, QClang) | |
4098 | || EQ (prop, QCotf)) | |
4099 | CHECK_FONT_SPEC (font); | |
4100 | else | |
4101 | CHECK_FONT (font); | |
4102 | font_put_extra (font, prop, font_prop_validate (0, prop, val)); | |
4103 | } | |
c2f5bfd6 KH |
4104 | return val; |
4105 | } | |
4106 | ||
a7ca3326 | 4107 | DEFUN ("list-fonts", Flist_fonts, Slist_fonts, 1, 4, 0, |
c2f5bfd6 KH |
4108 | doc: /* List available fonts matching FONT-SPEC on the current frame. |
4109 | Optional 2nd argument FRAME specifies the target frame. | |
4110 | Optional 3rd argument NUM, if non-nil, limits the number of returned fonts. | |
45eb10fb KH |
4111 | Optional 4th argument PREFER, if non-nil, is a font-spec to |
4112 | control the order of the returned list. Fonts are sorted by | |
027a33c0 | 4113 | how close they are to PREFER. */) |
5842a27b | 4114 | (Lisp_Object font_spec, Lisp_Object frame, Lisp_Object num, Lisp_Object prefer) |
c2f5bfd6 | 4115 | { |
72d36834 KH |
4116 | Lisp_Object vec, list; |
4117 | int n = 0; | |
c2f5bfd6 KH |
4118 | |
4119 | if (NILP (frame)) | |
4120 | frame = selected_frame; | |
4121 | CHECK_LIVE_FRAME (frame); | |
35027d0c | 4122 | CHECK_FONT_SPEC (font_spec); |
c2f5bfd6 KH |
4123 | if (! NILP (num)) |
4124 | { | |
4125 | CHECK_NUMBER (num); | |
4126 | n = XINT (num); | |
4127 | if (n <= 0) | |
4128 | return Qnil; | |
4129 | } | |
4130 | if (! NILP (prefer)) | |
35027d0c | 4131 | CHECK_FONT_SPEC (prefer); |
c2f5bfd6 | 4132 | |
72d36834 KH |
4133 | list = font_list_entities (frame, font_spec); |
4134 | if (NILP (list)) | |
c2f5bfd6 | 4135 | return Qnil; |
72d36834 KH |
4136 | if (NILP (XCDR (list)) |
4137 | && ASIZE (XCAR (list)) == 1) | |
4138 | return Fcons (AREF (XCAR (list), 0), Qnil); | |
c2f5bfd6 KH |
4139 | |
4140 | if (! NILP (prefer)) | |
72d36834 KH |
4141 | vec = font_sort_entities (list, prefer, frame, 0); |
4142 | else | |
4143 | vec = font_vconcat_entity_vectors (list); | |
4144 | if (n == 0 || n >= ASIZE (vec)) | |
c2f5bfd6 | 4145 | { |
72d36834 | 4146 | Lisp_Object args[2]; |
c2f5bfd6 | 4147 | |
72d36834 KH |
4148 | args[0] = vec; |
4149 | args[1] = Qnil; | |
4150 | list = Fappend (2, args); | |
4151 | } | |
4152 | else | |
4153 | { | |
4154 | for (list = Qnil, n--; n >= 0; n--) | |
4155 | list = Fcons (AREF (vec, n), list); | |
c2f5bfd6 KH |
4156 | } |
4157 | return list; | |
4158 | } | |
4159 | ||
35027d0c | 4160 | DEFUN ("font-family-list", Ffont_family_list, Sfont_family_list, 0, 1, 0, |
c2f5bfd6 | 4161 | doc: /* List available font families on the current frame. |
027a33c0 | 4162 | Optional argument FRAME, if non-nil, specifies the target frame. */) |
5842a27b | 4163 | (Lisp_Object frame) |
c2f5bfd6 KH |
4164 | { |
4165 | FRAME_PTR f; | |
4166 | struct font_driver_list *driver_list; | |
4167 | Lisp_Object list; | |
4168 | ||
4169 | if (NILP (frame)) | |
4170 | frame = selected_frame; | |
4171 | CHECK_LIVE_FRAME (frame); | |
4172 | f = XFRAME (frame); | |
4173 | list = Qnil; | |
4174 | for (driver_list = f->font_driver_list; driver_list; | |
4175 | driver_list = driver_list->next) | |
4176 | if (driver_list->driver->list_family) | |
4177 | { | |
4178 | Lisp_Object val = driver_list->driver->list_family (frame); | |
13bf758b | 4179 | Lisp_Object tail = list; |
c2f5bfd6 | 4180 | |
13bf758b CY |
4181 | for (; CONSP (val); val = XCDR (val)) |
4182 | if (NILP (Fmemq (XCAR (val), tail)) | |
4183 | && SYMBOLP (XCAR (val))) | |
4184 | list = Fcons (SYMBOL_NAME (XCAR (val)), list); | |
c2f5bfd6 KH |
4185 | } |
4186 | return list; | |
4187 | } | |
4188 | ||
4189 | DEFUN ("find-font", Ffind_font, Sfind_font, 1, 2, 0, | |
4190 | doc: /* Return a font-entity matching with FONT-SPEC on the current frame. | |
4191 | Optional 2nd argument FRAME, if non-nil, specifies the target frame. */) | |
5842a27b | 4192 | (Lisp_Object font_spec, Lisp_Object frame) |
c2f5bfd6 KH |
4193 | { |
4194 | Lisp_Object val = Flist_fonts (font_spec, frame, make_number (1), Qnil); | |
4195 | ||
4196 | if (CONSP (val)) | |
4197 | val = XCAR (val); | |
4198 | return val; | |
4199 | } | |
4200 | ||
a7ca3326 | 4201 | DEFUN ("font-xlfd-name", Ffont_xlfd_name, Sfont_xlfd_name, 1, 2, 0, |
c2f5bfd6 KH |
4202 | doc: /* Return XLFD name of FONT. |
4203 | FONT is a font-spec, font-entity, or font-object. | |
d0ab1ebe KH |
4204 | If the name is too long for XLFD (maximum 255 chars), return nil. |
4205 | If the 2nd optional arg FOLD-WILDCARDS is non-nil, | |
56dd2d86 | 4206 | the consecutive wildcards are folded into one. */) |
5842a27b | 4207 | (Lisp_Object font, Lisp_Object fold_wildcards) |
c2f5bfd6 KH |
4208 | { |
4209 | char name[256]; | |
4210 | int pixel_size = 0; | |
4211 | ||
35027d0c KH |
4212 | CHECK_FONT (font); |
4213 | ||
4214 | if (FONT_OBJECT_P (font)) | |
c2f5bfd6 | 4215 | { |
35027d0c | 4216 | Lisp_Object font_name = AREF (font, FONT_NAME_INDEX); |
c2f5bfd6 | 4217 | |
35027d0c KH |
4218 | if (STRINGP (font_name) |
4219 | && SDATA (font_name)[0] == '-') | |
d0ab1ebe KH |
4220 | { |
4221 | if (NILP (fold_wildcards)) | |
4222 | return font_name; | |
51b59d79 | 4223 | strcpy (name, SSDATA (font_name)); |
d0ab1ebe KH |
4224 | goto done; |
4225 | } | |
35027d0c | 4226 | pixel_size = XFONT_OBJECT (font)->pixel_size; |
c2f5bfd6 | 4227 | } |
c2f5bfd6 KH |
4228 | if (font_unparse_xlfd (font, pixel_size, name, 256) < 0) |
4229 | return Qnil; | |
d0ab1ebe KH |
4230 | done: |
4231 | if (! NILP (fold_wildcards)) | |
4232 | { | |
4233 | char *p0 = name, *p1; | |
4234 | ||
4235 | while ((p1 = strstr (p0, "-*-*"))) | |
4236 | { | |
4237 | strcpy (p1, p1 + 2); | |
4238 | p0 = p1; | |
4239 | } | |
4240 | } | |
4241 | ||
c2f5bfd6 KH |
4242 | return build_string (name); |
4243 | } | |
4244 | ||
4245 | DEFUN ("clear-font-cache", Fclear_font_cache, Sclear_font_cache, 0, 0, 0, | |
4246 | doc: /* Clear font cache. */) | |
5842a27b | 4247 | (void) |
c2f5bfd6 KH |
4248 | { |
4249 | Lisp_Object list, frame; | |
4250 | ||
4251 | FOR_EACH_FRAME (list, frame) | |
4252 | { | |
4253 | FRAME_PTR f = XFRAME (frame); | |
4254 | struct font_driver_list *driver_list = f->font_driver_list; | |
4255 | ||
4256 | for (; driver_list; driver_list = driver_list->next) | |
417a1b10 KH |
4257 | if (driver_list->on) |
4258 | { | |
ca4da08a | 4259 | Lisp_Object cache = driver_list->driver->get_cache (f); |
7a6f7fea | 4260 | Lisp_Object val, tmp; |
51c01100 | 4261 | |
ca4da08a | 4262 | val = XCDR (cache); |
43c0454d KH |
4263 | while (! NILP (val) |
4264 | && ! EQ (XCAR (XCAR (val)), driver_list->driver->type)) | |
ca4da08a | 4265 | val = XCDR (val); |
d0ab1ebe | 4266 | font_assert (! NILP (val)); |
7a6f7fea AS |
4267 | tmp = XCDR (XCAR (val)); |
4268 | if (XINT (XCAR (tmp)) == 0) | |
417a1b10 | 4269 | { |
ca4da08a KH |
4270 | font_clear_cache (f, XCAR (val), driver_list->driver); |
4271 | XSETCDR (cache, XCDR (val)); | |
417a1b10 | 4272 | } |
417a1b10 | 4273 | } |
c2f5bfd6 KH |
4274 | } |
4275 | ||
4276 | return Qnil; | |
4277 | } | |
4278 | ||
071132a9 KH |
4279 | \f |
4280 | void | |
971de7fb | 4281 | font_fill_lglyph_metrics (Lisp_Object glyph, Lisp_Object font_object) |
c2f5bfd6 | 4282 | { |
071132a9 | 4283 | struct font *font = XFONT_OBJECT (font_object); |
f62ab7c5 EZ |
4284 | unsigned code; |
4285 | /* ecode used in LGLYPH_SET_CODE to avoid compiler warnings. */ | |
4286 | EMACS_INT ecode = font->driver->encode_char (font, LGLYPH_CHAR (glyph)); | |
071132a9 | 4287 | struct font_metrics metrics; |
c2f5bfd6 | 4288 | |
f62ab7c5 EZ |
4289 | LGLYPH_SET_CODE (glyph, ecode); |
4290 | code = ecode; | |
071132a9 KH |
4291 | font->driver->text_extents (font, &code, 1, &metrics); |
4292 | LGLYPH_SET_LBEARING (glyph, metrics.lbearing); | |
4293 | LGLYPH_SET_RBEARING (glyph, metrics.rbearing); | |
4294 | LGLYPH_SET_WIDTH (glyph, metrics.width); | |
4295 | LGLYPH_SET_ASCENT (glyph, metrics.ascent); | |
4296 | LGLYPH_SET_DESCENT (glyph, metrics.descent); | |
c2f5bfd6 KH |
4297 | } |
4298 | ||
c2f5bfd6 | 4299 | |
071132a9 KH |
4300 | DEFUN ("font-shape-gstring", Ffont_shape_gstring, Sfont_shape_gstring, 1, 1, 0, |
4301 | doc: /* Shape the glyph-string GSTRING. | |
4302 | Shaping means substituting glyphs and/or adjusting positions of glyphs | |
4303 | to get the correct visual image of character sequences set in the | |
4304 | header of the glyph-string. | |
1701724c | 4305 | |
071132a9 KH |
4306 | If the shaping was successful, the value is GSTRING itself or a newly |
4307 | created glyph-string. Otherwise, the value is nil. */) | |
5842a27b | 4308 | (Lisp_Object gstring) |
1701724c KH |
4309 | { |
4310 | struct font *font; | |
071132a9 | 4311 | Lisp_Object font_object, n, glyph; |
ebc96716 | 4312 | EMACS_INT i, j, from, to; |
ba3de0e8 | 4313 | |
071132a9 KH |
4314 | if (! composition_gstring_p (gstring)) |
4315 | signal_error ("Invalid glyph-string: ", gstring); | |
4316 | if (! NILP (LGSTRING_ID (gstring))) | |
4317 | return gstring; | |
4318 | font_object = LGSTRING_FONT (gstring); | |
4319 | CHECK_FONT_OBJECT (font_object); | |
35027d0c | 4320 | font = XFONT_OBJECT (font_object); |
b876ea91 KH |
4321 | if (! font->driver->shape) |
4322 | return Qnil; | |
4323 | ||
40fb53d6 KH |
4324 | /* Try at most three times with larger gstring each time. */ |
4325 | for (i = 0; i < 3; i++) | |
4326 | { | |
40fb53d6 KH |
4327 | n = font->driver->shape (gstring); |
4328 | if (INTEGERP (n)) | |
4329 | break; | |
071132a9 KH |
4330 | gstring = larger_vector (gstring, |
4331 | ASIZE (gstring) + LGSTRING_GLYPH_LEN (gstring), | |
4332 | Qnil); | |
40fb53d6 | 4333 | } |
071132a9 | 4334 | if (i == 3 || XINT (n) == 0) |
1701724c | 4335 | return Qnil; |
dfe3c90f KH |
4336 | if (XINT (n) < LGSTRING_GLYPH_LEN (gstring)) |
4337 | LGSTRING_SET_GLYPH (gstring, XINT (n), Qnil); | |
ba3de0e8 | 4338 | |
071132a9 | 4339 | glyph = LGSTRING_GLYPH (gstring, 0); |
fc3a285e KH |
4340 | from = LGLYPH_FROM (glyph); |
4341 | to = LGLYPH_TO (glyph); | |
4342 | for (i = 1, j = 0; i < LGSTRING_GLYPH_LEN (gstring); i++) | |
071132a9 KH |
4343 | { |
4344 | Lisp_Object this = LGSTRING_GLYPH (gstring, i); | |
10d16101 | 4345 | |
071132a9 KH |
4346 | if (NILP (this)) |
4347 | break; | |
4348 | if (NILP (LGLYPH_ADJUSTMENT (this))) | |
fc3a285e KH |
4349 | { |
4350 | if (j < i - 1) | |
4351 | for (; j < i; j++) | |
4352 | { | |
4353 | glyph = LGSTRING_GLYPH (gstring, j); | |
4354 | LGLYPH_SET_FROM (glyph, from); | |
4355 | LGLYPH_SET_TO (glyph, to); | |
4356 | } | |
4357 | from = LGLYPH_FROM (this); | |
4358 | to = LGLYPH_TO (this); | |
4359 | j = i; | |
4360 | } | |
071132a9 | 4361 | else |
b2937119 | 4362 | { |
fc3a285e KH |
4363 | if (from > LGLYPH_FROM (this)) |
4364 | from = LGLYPH_FROM (this); | |
4365 | if (to < LGLYPH_TO (this)) | |
4366 | to = LGLYPH_TO (this); | |
b2937119 | 4367 | } |
10d16101 | 4368 | } |
fc3a285e KH |
4369 | if (j < i - 1) |
4370 | for (; j < i; j++) | |
4371 | { | |
4372 | glyph = LGSTRING_GLYPH (gstring, j); | |
4373 | LGLYPH_SET_FROM (glyph, from); | |
4374 | LGLYPH_SET_TO (glyph, to); | |
4375 | } | |
071132a9 | 4376 | return composition_gstring_put_cache (gstring, XINT (n)); |
c2f5bfd6 KH |
4377 | } |
4378 | ||
78a2f9cd KH |
4379 | DEFUN ("font-variation-glyphs", Ffont_variation_glyphs, Sfont_variation_glyphs, |
4380 | 2, 2, 0, | |
4381 | doc: /* Return a list of variation glyphs for CHAR in FONT-OBJECT. | |
4382 | Each element of the value is a cons (VARIATION-SELECTOR . GLYPH-ID), | |
4383 | where | |
c0943d3d | 4384 | VARIATION-SELECTOR is a character code of variation selection |
78a2f9cd KH |
4385 | (#xFE00..#xFE0F or #xE0100..#xE01EF) |
4386 | GLYPH-ID is a glyph code of the corresponding variation glyph. */) | |
5842a27b | 4387 | (Lisp_Object font_object, Lisp_Object character) |
78a2f9cd KH |
4388 | { |
4389 | unsigned variations[256]; | |
4390 | struct font *font; | |
4391 | int i, n; | |
4392 | Lisp_Object val; | |
4393 | ||
4394 | CHECK_FONT_OBJECT (font_object); | |
4395 | CHECK_CHARACTER (character); | |
4396 | font = XFONT_OBJECT (font_object); | |
4397 | if (! font->driver->get_variation_glyphs) | |
4398 | return Qnil; | |
4399 | n = font->driver->get_variation_glyphs (font, XINT (character), variations); | |
4400 | if (! n) | |
4401 | return Qnil; | |
4402 | val = Qnil; | |
4403 | for (i = 0; i < 255; i++) | |
4404 | if (variations[i]) | |
4405 | { | |
78a2f9cd | 4406 | int vs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16)); |
be44ca6c | 4407 | Lisp_Object code = INTEGER_TO_CONS (variations[i]); |
78a2f9cd KH |
4408 | val = Fcons (Fcons (make_number (vs), code), val); |
4409 | } | |
4410 | return val; | |
4411 | } | |
4412 | ||
6a3dadd2 KH |
4413 | #if 0 |
4414 | ||
a7ca3326 | 4415 | DEFUN ("font-drive-otf", Ffont_drive_otf, Sfont_drive_otf, 6, 6, 0, |
733fd013 | 4416 | doc: /* Apply OpenType features on glyph-string GSTRING-IN. |
51c01100 | 4417 | OTF-FEATURES specifies which features to apply in this format: |
733fd013 | 4418 | (SCRIPT LANGSYS GSUB GPOS) |
e80e09b4 KH |
4419 | where |
4420 | SCRIPT is a symbol specifying a script tag of OpenType, | |
4421 | LANGSYS is a symbol specifying a langsys tag of OpenType, | |
733fd013 | 4422 | GSUB and GPOS, if non-nil, are lists of symbols specifying feature tags. |
e80e09b4 KH |
4423 | |
4424 | If LANGYS is nil, the default langsys is selected. | |
4425 | ||
51c01100 JB |
4426 | The features are applied in the order they appear in the list. The |
4427 | symbol `*' means to apply all available features not present in this | |
733fd013 KH |
4428 | list, and the remaining features are ignored. For instance, (vatu |
4429 | pstf * haln) is to apply vatu and pstf in this order, then to apply | |
4430 | all available features other than vatu, pstf, and haln. | |
e80e09b4 KH |
4431 | |
4432 | The features are applied to the glyphs in the range FROM and TO of | |
733fd013 | 4433 | the glyph-string GSTRING-IN. |
e80e09b4 | 4434 | |
51c01100 | 4435 | If some feature is actually applicable, the resulting glyphs are |
e80e09b4 KH |
4436 | produced in the glyph-string GSTRING-OUT from the index INDEX. In |
4437 | this case, the value is the number of produced glyphs. | |
4438 | ||
4439 | If no feature is applicable, no glyph is produced in GSTRING-OUT, and | |
4440 | the value is 0. | |
4441 | ||
51c01100 | 4442 | If GSTRING-OUT is too short to hold produced glyphs, no glyphs are |
e80e09b4 KH |
4443 | produced in GSTRING-OUT, and the value is nil. |
4444 | ||
56dd2d86 | 4445 | See the documentation of `composition-get-gstring' for the format of |
e80e09b4 | 4446 | glyph-string. */) |
5842a27b | 4447 | (Lisp_Object otf_features, Lisp_Object gstring_in, Lisp_Object from, Lisp_Object to, Lisp_Object gstring_out, Lisp_Object index) |
e80e09b4 KH |
4448 | { |
4449 | Lisp_Object font_object = LGSTRING_FONT (gstring_in); | |
733fd013 KH |
4450 | Lisp_Object val; |
4451 | struct font *font; | |
e80e09b4 KH |
4452 | int len, num; |
4453 | ||
733fd013 | 4454 | check_otf_features (otf_features); |
35027d0c KH |
4455 | CHECK_FONT_OBJECT (font_object); |
4456 | font = XFONT_OBJECT (font_object); | |
733fd013 | 4457 | if (! font->driver->otf_drive) |
e80e09b4 KH |
4458 | error ("Font backend %s can't drive OpenType GSUB table", |
4459 | SDATA (SYMBOL_NAME (font->driver->type))); | |
733fd013 KH |
4460 | CHECK_CONS (otf_features); |
4461 | CHECK_SYMBOL (XCAR (otf_features)); | |
4462 | val = XCDR (otf_features); | |
4463 | CHECK_SYMBOL (XCAR (val)); | |
4464 | val = XCDR (otf_features); | |
4465 | if (! NILP (val)) | |
4466 | CHECK_CONS (val); | |
e80e09b4 KH |
4467 | len = check_gstring (gstring_in); |
4468 | CHECK_VECTOR (gstring_out); | |
4469 | CHECK_NATNUM (from); | |
4470 | CHECK_NATNUM (to); | |
4471 | CHECK_NATNUM (index); | |
4472 | ||
4473 | if (XINT (from) >= XINT (to) || XINT (to) > len) | |
4474 | args_out_of_range_3 (from, to, make_number (len)); | |
4475 | if (XINT (index) >= ASIZE (gstring_out)) | |
4476 | args_out_of_range (index, make_number (ASIZE (gstring_out))); | |
733fd013 KH |
4477 | num = font->driver->otf_drive (font, otf_features, |
4478 | gstring_in, XINT (from), XINT (to), | |
4479 | gstring_out, XINT (index), 0); | |
e80e09b4 KH |
4480 | if (num < 0) |
4481 | return Qnil; | |
4482 | return make_number (num); | |
4483 | } | |
4484 | ||
a7ca3326 | 4485 | DEFUN ("font-otf-alternates", Ffont_otf_alternates, Sfont_otf_alternates, |
e80e09b4 KH |
4486 | 3, 3, 0, |
4487 | doc: /* Return a list of alternate glyphs of CHARACTER in FONT-OBJECT. | |
51c01100 | 4488 | OTF-FEATURES specifies which features of the font FONT-OBJECT to apply |
e80e09b4 KH |
4489 | in this format: |
4490 | (SCRIPT LANGSYS FEATURE ...) | |
027a33c0 | 4491 | See the documentation of `font-drive-otf' for more detail. |
e80e09b4 KH |
4492 | |
4493 | The value is a list of cons cells of the format (GLYPH-ID . CHARACTER), | |
4494 | where GLYPH-ID is a glyph index of the font, and CHARACTER is a | |
4495 | character code corresponding to the glyph or nil if there's no | |
4496 | corresponding character. */) | |
5842a27b | 4497 | (Lisp_Object font_object, Lisp_Object character, Lisp_Object otf_features) |
e80e09b4 KH |
4498 | { |
4499 | struct font *font; | |
4500 | Lisp_Object gstring_in, gstring_out, g; | |
4501 | Lisp_Object alternates; | |
4502 | int i, num; | |
4503 | ||
4504 | CHECK_FONT_GET_OBJECT (font_object, font); | |
733fd013 | 4505 | if (! font->driver->otf_drive) |
e950d6f1 KH |
4506 | error ("Font backend %s can't drive OpenType GSUB table", |
4507 | SDATA (SYMBOL_NAME (font->driver->type))); | |
e80e09b4 | 4508 | CHECK_CHARACTER (character); |
733fd013 | 4509 | CHECK_CONS (otf_features); |
e80e09b4 KH |
4510 | |
4511 | gstring_in = Ffont_make_gstring (font_object, make_number (1)); | |
4512 | g = LGSTRING_GLYPH (gstring_in, 0); | |
f9ffa1ea | 4513 | LGLYPH_SET_CHAR (g, XINT (character)); |
e80e09b4 | 4514 | gstring_out = Ffont_make_gstring (font_object, make_number (10)); |
733fd013 KH |
4515 | while ((num = font->driver->otf_drive (font, otf_features, gstring_in, 0, 1, |
4516 | gstring_out, 0, 1)) < 0) | |
e80e09b4 KH |
4517 | gstring_out = Ffont_make_gstring (font_object, |
4518 | make_number (ASIZE (gstring_out) * 2)); | |
4519 | alternates = Qnil; | |
4520 | for (i = 0; i < num; i++) | |
4521 | { | |
4522 | Lisp_Object g = LGSTRING_GLYPH (gstring_out, i); | |
f9ffa1ea SM |
4523 | int c = LGLYPH_CHAR (g); |
4524 | unsigned code = LGLYPH_CODE (g); | |
e80e09b4 KH |
4525 | |
4526 | alternates = Fcons (Fcons (make_number (code), | |
4527 | c > 0 ? make_number (c) : Qnil), | |
4528 | alternates); | |
4529 | } | |
4530 | return Fnreverse (alternates); | |
4531 | } | |
6a3dadd2 | 4532 | #endif /* 0 */ |
c2f5bfd6 KH |
4533 | |
4534 | #ifdef FONT_DEBUG | |
4535 | ||
4536 | DEFUN ("open-font", Fopen_font, Sopen_font, 1, 3, 0, | |
4537 | doc: /* Open FONT-ENTITY. */) | |
5842a27b | 4538 | (Lisp_Object font_entity, Lisp_Object size, Lisp_Object frame) |
c2f5bfd6 KH |
4539 | { |
4540 | int isize; | |
4541 | ||
4542 | CHECK_FONT_ENTITY (font_entity); | |
c2f5bfd6 KH |
4543 | if (NILP (frame)) |
4544 | frame = selected_frame; | |
4545 | CHECK_LIVE_FRAME (frame); | |
51c01100 | 4546 | |
35027d0c KH |
4547 | if (NILP (size)) |
4548 | isize = XINT (AREF (font_entity, FONT_SIZE_INDEX)); | |
4549 | else | |
4550 | { | |
4551 | CHECK_NUMBER_OR_FLOAT (size); | |
4552 | if (FLOATP (size)) | |
d03b5cdb | 4553 | isize = POINT_TO_PIXEL (XFLOAT_DATA (size), XFRAME (frame)->resy); |
35027d0c KH |
4554 | else |
4555 | isize = XINT (size); | |
4556 | if (isize == 0) | |
4557 | isize = 120; | |
4558 | } | |
c2f5bfd6 KH |
4559 | return font_open_entity (XFRAME (frame), font_entity, isize); |
4560 | } | |
4561 | ||
4562 | DEFUN ("close-font", Fclose_font, Sclose_font, 1, 2, 0, | |
4563 | doc: /* Close FONT-OBJECT. */) | |
5842a27b | 4564 | (Lisp_Object font_object, Lisp_Object frame) |
c2f5bfd6 KH |
4565 | { |
4566 | CHECK_FONT_OBJECT (font_object); | |
4567 | if (NILP (frame)) | |
4568 | frame = selected_frame; | |
4569 | CHECK_LIVE_FRAME (frame); | |
4570 | font_close_object (XFRAME (frame), font_object); | |
4571 | return Qnil; | |
4572 | } | |
4573 | ||
4574 | DEFUN ("query-font", Fquery_font, Squery_font, 1, 1, 0, | |
e80e09b4 KH |
4575 | doc: /* Return information about FONT-OBJECT. |
4576 | The value is a vector: | |
4577 | [ NAME FILENAME PIXEL-SIZE SIZE ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH | |
e0708580 | 4578 | CAPABILITY ] |
e80e09b4 | 4579 | |
56dd2d86 | 4580 | NAME is the font name, a string (or nil if the font backend doesn't |
e80e09b4 KH |
4581 | provide a name). |
4582 | ||
56dd2d86 | 4583 | FILENAME is the font file name, a string (or nil if the font backend |
e80e09b4 KH |
4584 | doesn't provide a file name). |
4585 | ||
4586 | PIXEL-SIZE is a pixel size by which the font is opened. | |
4587 | ||
027a33c0 | 4588 | SIZE is a maximum advance width of the font in pixels. |
e80e09b4 KH |
4589 | |
4590 | ASCENT, DESCENT, SPACE-WIDTH, AVERAGE-WIDTH are metrics of the font in | |
027a33c0 | 4591 | pixels. |
e80e09b4 | 4592 | |
e0708580 KH |
4593 | CAPABILITY is a list whose first element is a symbol representing the |
4594 | font format \(x, opentype, truetype, type1, pcf, or bdf) and the | |
027a33c0 | 4595 | remaining elements describe the details of the font capability. |
e0708580 KH |
4596 | |
4597 | If the font is OpenType font, the form of the list is | |
4598 | \(opentype GSUB GPOS) | |
4599 | where GSUB shows which "GSUB" features the font supports, and GPOS | |
4600 | shows which "GPOS" features the font supports. Both GSUB and GPOS are | |
4601 | lists of the format: | |
4602 | \((SCRIPT (LANGSYS FEATURE ...) ...) ...) | |
4603 | ||
4604 | If the font is not OpenType font, currently the length of the form is | |
4605 | one. | |
e80e09b4 KH |
4606 | |
4607 | SCRIPT is a symbol representing OpenType script tag. | |
4608 | ||
4609 | LANGSYS is a symbol representing OpenType langsys tag, or nil | |
4610 | representing the default langsys. | |
4611 | ||
51c01100 | 4612 | FEATURE is a symbol representing OpenType feature tag. |
e80e09b4 | 4613 | |
51c01100 | 4614 | If the font is not OpenType font, CAPABILITY is nil. */) |
5842a27b | 4615 | (Lisp_Object font_object) |
c2f5bfd6 KH |
4616 | { |
4617 | struct font *font; | |
4618 | Lisp_Object val; | |
4619 | ||
4620 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4621 | ||
4622 | val = Fmake_vector (make_number (9), Qnil); | |
35027d0c KH |
4623 | ASET (val, 0, AREF (font_object, FONT_NAME_INDEX)); |
4624 | ASET (val, 1, AREF (font_object, FONT_FILE_INDEX)); | |
c2f5bfd6 | 4625 | ASET (val, 2, make_number (font->pixel_size)); |
35027d0c | 4626 | ASET (val, 3, make_number (font->max_width)); |
c2f5bfd6 KH |
4627 | ASET (val, 4, make_number (font->ascent)); |
4628 | ASET (val, 5, make_number (font->descent)); | |
35027d0c KH |
4629 | ASET (val, 6, make_number (font->space_width)); |
4630 | ASET (val, 7, make_number (font->average_width)); | |
c2f5bfd6 | 4631 | if (font->driver->otf_capability) |
e0708580 | 4632 | ASET (val, 8, Fcons (Qopentype, font->driver->otf_capability (font))); |
c2f5bfd6 KH |
4633 | return val; |
4634 | } | |
4635 | ||
a7840ffb KH |
4636 | DEFUN ("font-get-glyphs", Ffont_get_glyphs, Sfont_get_glyphs, 3, 4, 0, |
4637 | doc: | |
4638 | /* Return a vector of FONT-OBJECT's glyphs for the specified characters. | |
4639 | FROM and TO are positions (integers or markers) specifying a region | |
4640 | of the current buffer. | |
4641 | If the optional fourth arg OBJECT is not nil, it is a string or a | |
4642 | vector containing the target characters. | |
4643 | ||
4644 | Each element is a vector containing information of a glyph in this format: | |
4645 | [FROM-IDX TO-IDX C CODE WIDTH LBEARING RBEARING ASCENT DESCENT ADJUSTMENT] | |
4646 | where | |
4647 | FROM is an index numbers of a character the glyph corresponds to. | |
4648 | TO is the same as FROM. | |
4649 | C is the character of the glyph. | |
4650 | CODE is the glyph-code of C in FONT-OBJECT. | |
4651 | WIDTH thru DESCENT are the metrics (in pixels) of the glyph. | |
4652 | ADJUSTMENT is always nil. | |
4653 | If FONT-OBJECT doesn't have a glyph for a character, | |
4654 | the corresponding element is nil. */) | |
e1ffae3b KH |
4655 | (Lisp_Object font_object, Lisp_Object from, Lisp_Object to, |
4656 | Lisp_Object object) | |
c2f5bfd6 KH |
4657 | { |
4658 | struct font *font; | |
13a547c6 | 4659 | int i, len; |
a7840ffb KH |
4660 | Lisp_Object *chars, vec; |
4661 | USE_SAFE_ALLOCA; | |
c2f5bfd6 KH |
4662 | |
4663 | CHECK_FONT_GET_OBJECT (font_object, font); | |
a7840ffb KH |
4664 | if (NILP (object)) |
4665 | { | |
4666 | EMACS_INT charpos, bytepos; | |
4667 | ||
4668 | validate_region (&from, &to); | |
4669 | if (EQ (from, to)) | |
4670 | return Qnil; | |
4671 | len = XFASTINT (to) - XFASTINT (from); | |
4672 | SAFE_ALLOCA_LISP (chars, len); | |
4673 | charpos = XFASTINT (from); | |
4674 | bytepos = CHAR_TO_BYTE (charpos); | |
4675 | for (i = 0; charpos < XFASTINT (to); i++) | |
4676 | { | |
13a547c6 | 4677 | int c; |
a7840ffb KH |
4678 | FETCH_CHAR_ADVANCE (c, charpos, bytepos); |
4679 | chars[i] = make_number (c); | |
4680 | } | |
4681 | } | |
4682 | else if (STRINGP (object)) | |
4683 | { | |
4684 | const unsigned char *p; | |
4685 | ||
4686 | CHECK_NUMBER (from); | |
4687 | CHECK_NUMBER (to); | |
4688 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4689 | || XINT (to) > SCHARS (object)) | |
4690 | args_out_of_range_3 (object, from, to); | |
4691 | if (EQ (from, to)) | |
4692 | return Qnil; | |
4693 | len = XFASTINT (to) - XFASTINT (from); | |
4694 | SAFE_ALLOCA_LISP (chars, len); | |
4695 | p = SDATA (object); | |
4696 | if (STRING_MULTIBYTE (object)) | |
4697 | for (i = 0; i < len; i++) | |
4698 | { | |
13a547c6 | 4699 | int c = STRING_CHAR_ADVANCE (p); |
a7840ffb KH |
4700 | chars[i] = make_number (c); |
4701 | } | |
4702 | else | |
4703 | for (i = 0; i < len; i++) | |
4704 | chars[i] = make_number (p[i]); | |
4705 | } | |
4706 | else | |
4707 | { | |
4708 | CHECK_VECTOR (object); | |
4709 | CHECK_NUMBER (from); | |
4710 | CHECK_NUMBER (to); | |
4711 | if (XINT (from) < 0 || XINT (from) > XINT (to) | |
4712 | || XINT (to) > ASIZE (object)) | |
4713 | args_out_of_range_3 (object, from, to); | |
4714 | if (EQ (from, to)) | |
4715 | return Qnil; | |
4716 | len = XFASTINT (to) - XFASTINT (from); | |
4717 | for (i = 0; i < len; i++) | |
4718 | { | |
4719 | Lisp_Object elt = AREF (object, XFASTINT (from) + i); | |
4720 | CHECK_CHARACTER (elt); | |
4721 | } | |
4722 | chars = &(AREF (object, XFASTINT (from))); | |
4723 | } | |
4724 | ||
c2f5bfd6 KH |
4725 | vec = Fmake_vector (make_number (len), Qnil); |
4726 | for (i = 0; i < len; i++) | |
4727 | { | |
a7840ffb KH |
4728 | Lisp_Object g; |
4729 | int c = XFASTINT (chars[i]); | |
c2f5bfd6 KH |
4730 | unsigned code; |
4731 | struct font_metrics metrics; | |
4732 | ||
78834453 | 4733 | code = font->driver->encode_char (font, c); |
c2f5bfd6 KH |
4734 | if (code == FONT_INVALID_CODE) |
4735 | continue; | |
a7840ffb KH |
4736 | g = Fmake_vector (make_number (LGLYPH_SIZE), Qnil); |
4737 | LGLYPH_SET_FROM (g, i); | |
4738 | LGLYPH_SET_TO (g, i); | |
4739 | LGLYPH_SET_CHAR (g, c); | |
4740 | LGLYPH_SET_CODE (g, code); | |
51c01100 | 4741 | font->driver->text_extents (font, &code, 1, &metrics); |
a7840ffb KH |
4742 | LGLYPH_SET_WIDTH (g, metrics.width); |
4743 | LGLYPH_SET_LBEARING (g, metrics.lbearing); | |
4744 | LGLYPH_SET_RBEARING (g, metrics.rbearing); | |
4745 | LGLYPH_SET_ASCENT (g, metrics.ascent); | |
4746 | LGLYPH_SET_DESCENT (g, metrics.descent); | |
4747 | ASET (vec, i, g); | |
4748 | } | |
4749 | if (! VECTORP (object)) | |
4750 | SAFE_FREE (); | |
c2f5bfd6 KH |
4751 | return vec; |
4752 | } | |
4753 | ||
ec6fe57c | 4754 | DEFUN ("font-match-p", Ffont_match_p, Sfont_match_p, 2, 2, 0, |
67b5d7de | 4755 | doc: /* Return t if and only if font-spec SPEC matches with FONT. |
ec6fe57c | 4756 | FONT is a font-spec, font-entity, or font-object. */) |
5842a27b | 4757 | (Lisp_Object spec, Lisp_Object font) |
ec6fe57c KH |
4758 | { |
4759 | CHECK_FONT_SPEC (spec); | |
35027d0c | 4760 | CHECK_FONT (font); |
ec6fe57c KH |
4761 | |
4762 | return (font_match_p (spec, font) ? Qt : Qnil); | |
4763 | } | |
4764 | ||
1701724c | 4765 | DEFUN ("font-at", Ffont_at, Sfont_at, 1, 3, 0, |
51c01100 | 4766 | doc: /* Return a font-object for displaying a character at POSITION. |
10d16101 KH |
4767 | Optional second arg WINDOW, if non-nil, is a window displaying |
4768 | the current buffer. It defaults to the currently selected window. */) | |
5842a27b | 4769 | (Lisp_Object position, Lisp_Object window, Lisp_Object string) |
10d16101 KH |
4770 | { |
4771 | struct window *w; | |
e3ee0340 | 4772 | EMACS_INT pos; |
10d16101 | 4773 | |
1701724c KH |
4774 | if (NILP (string)) |
4775 | { | |
4776 | CHECK_NUMBER_COERCE_MARKER (position); | |
4777 | pos = XINT (position); | |
4778 | if (pos < BEGV || pos >= ZV) | |
4779 | args_out_of_range_3 (position, make_number (BEGV), make_number (ZV)); | |
1701724c KH |
4780 | } |
4781 | else | |
4782 | { | |
1701724c KH |
4783 | CHECK_NUMBER (position); |
4784 | CHECK_STRING (string); | |
4785 | pos = XINT (position); | |
4786 | if (pos < 0 || pos >= SCHARS (string)) | |
4787 | args_out_of_range (string, position); | |
1701724c | 4788 | } |
10d16101 KH |
4789 | if (NILP (window)) |
4790 | window = selected_window; | |
4791 | CHECK_LIVE_WINDOW (window); | |
40fb53d6 | 4792 | w = XWINDOW (window); |
10d16101 | 4793 | |
40fb53d6 | 4794 | return font_at (-1, pos, NULL, w, string); |
10d16101 KH |
4795 | } |
4796 | ||
c2f5bfd6 KH |
4797 | #if 0 |
4798 | DEFUN ("draw-string", Fdraw_string, Sdraw_string, 2, 2, 0, | |
4799 | doc: /* Draw STRING by FONT-OBJECT on the top left corner of the current frame. | |
4800 | The value is a number of glyphs drawn. | |
4801 | Type C-l to recover what previously shown. */) | |
5842a27b | 4802 | (Lisp_Object font_object, Lisp_Object string) |
c2f5bfd6 KH |
4803 | { |
4804 | Lisp_Object frame = selected_frame; | |
4805 | FRAME_PTR f = XFRAME (frame); | |
4806 | struct font *font; | |
4807 | struct face *face; | |
4808 | int i, len, width; | |
4809 | unsigned *code; | |
4810 | ||
4811 | CHECK_FONT_GET_OBJECT (font_object, font); | |
4812 | CHECK_STRING (string); | |
4813 | len = SCHARS (string); | |
4814 | code = alloca (sizeof (unsigned) * len); | |
4815 | for (i = 0; i < len; i++) | |
4816 | { | |
4817 | Lisp_Object ch = Faref (string, make_number (i)); | |
4818 | Lisp_Object val; | |
4819 | int c = XINT (ch); | |
4820 | ||
4821 | code[i] = font->driver->encode_char (font, c); | |
4822 | if (code[i] == FONT_INVALID_CODE) | |
4823 | break; | |
4824 | } | |
4825 | face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4826 | face->fontp = font; | |
4827 | if (font->driver->prepare_face) | |
4828 | font->driver->prepare_face (f, face); | |
4829 | width = font->driver->text_extents (font, code, i, NULL); | |
4830 | len = font->driver->draw_text (f, face, 0, font->ascent, code, i, width); | |
4831 | if (font->driver->done_face) | |
4832 | font->driver->done_face (f, face); | |
4833 | face->fontp = NULL; | |
4834 | return make_number (len); | |
4835 | } | |
4836 | #endif | |
4837 | ||
4838 | #endif /* FONT_DEBUG */ | |
4839 | ||
a266686a KH |
4840 | #ifdef HAVE_WINDOW_SYSTEM |
4841 | ||
72606e45 KH |
4842 | DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, |
4843 | doc: /* Return information about a font named NAME on frame FRAME. | |
4844 | If FRAME is omitted or nil, use the selected frame. | |
06f19b91 | 4845 | The returned value is a vector of OPENED-NAME, FULL-NAME, SIZE, |
72606e45 KH |
4846 | HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT, |
4847 | where | |
4848 | OPENED-NAME is the name used for opening the font, | |
4849 | FULL-NAME is the full name of the font, | |
06f19b91 KH |
4850 | SIZE is the pixelsize of the font, |
4851 | HEIGHT is the pixel-height of the font (i.e ascent + descent), | |
72606e45 KH |
4852 | BASELINE-OFFSET is the upward offset pixels from ASCII baseline, |
4853 | RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling | |
4854 | how to compose characters. | |
4855 | If the named font is not yet loaded, return nil. */) | |
5842a27b | 4856 | (Lisp_Object name, Lisp_Object frame) |
72606e45 KH |
4857 | { |
4858 | FRAME_PTR f; | |
4859 | struct font *font; | |
4860 | Lisp_Object info; | |
4861 | Lisp_Object font_object; | |
4862 | ||
4863 | (*check_window_system_func) (); | |
4864 | ||
4865 | if (! FONTP (name)) | |
4866 | CHECK_STRING (name); | |
4867 | if (NILP (frame)) | |
4868 | frame = selected_frame; | |
4869 | CHECK_LIVE_FRAME (frame); | |
4870 | f = XFRAME (frame); | |
4871 | ||
4872 | if (STRINGP (name)) | |
4873 | { | |
4874 | int fontset = fs_query_fontset (name, 0); | |
4875 | ||
4876 | if (fontset >= 0) | |
4877 | name = fontset_ascii (fontset); | |
51b59d79 | 4878 | font_object = font_open_by_name (f, SSDATA (name)); |
72606e45 KH |
4879 | } |
4880 | else if (FONT_OBJECT_P (name)) | |
4881 | font_object = name; | |
4882 | else if (FONT_ENTITY_P (name)) | |
4883 | font_object = font_open_entity (f, name, 0); | |
4884 | else | |
4885 | { | |
4886 | struct face *face = FACE_FROM_ID (f, DEFAULT_FACE_ID); | |
4887 | Lisp_Object entity = font_matching_entity (f, face->lface, name); | |
4888 | ||
4889 | font_object = ! NILP (entity) ? font_open_entity (f, entity, 0) : Qnil; | |
4890 | } | |
4891 | if (NILP (font_object)) | |
4892 | return Qnil; | |
4893 | font = XFONT_OBJECT (font_object); | |
4894 | ||
4895 | info = Fmake_vector (make_number (7), Qnil); | |
4896 | XVECTOR (info)->contents[0] = AREF (font_object, FONT_NAME_INDEX); | |
06f19b91 | 4897 | XVECTOR (info)->contents[1] = AREF (font_object, FONT_FULLNAME_INDEX); |
72606e45 KH |
4898 | XVECTOR (info)->contents[2] = make_number (font->pixel_size); |
4899 | XVECTOR (info)->contents[3] = make_number (font->height); | |
4900 | XVECTOR (info)->contents[4] = make_number (font->baseline_offset); | |
4901 | XVECTOR (info)->contents[5] = make_number (font->relative_compose); | |
4902 | XVECTOR (info)->contents[6] = make_number (font->default_ascent); | |
4903 | ||
4904 | #if 0 | |
4905 | /* As font_object is still in FONT_OBJLIST of the entity, we can't | |
4906 | close it now. Perhaps, we should manage font-objects | |
4907 | by `reference-count'. */ | |
4908 | font_close_object (f, font_object); | |
4909 | #endif | |
4910 | return info; | |
4911 | } | |
a266686a | 4912 | #endif |
72606e45 | 4913 | |
c2f5bfd6 | 4914 | \f |
d0ab1ebe KH |
4915 | #define BUILD_STYLE_TABLE(TBL) \ |
4916 | build_style_table ((TBL), sizeof TBL / sizeof (struct table_entry)) | |
4917 | ||
4918 | static Lisp_Object | |
971de7fb | 4919 | build_style_table (const struct table_entry *entry, int nelement) |
d0ab1ebe KH |
4920 | { |
4921 | int i, j; | |
4922 | Lisp_Object table, elt; | |
17ab8f5d | 4923 | |
d0ab1ebe KH |
4924 | table = Fmake_vector (make_number (nelement), Qnil); |
4925 | for (i = 0; i < nelement; i++) | |
4926 | { | |
4927 | for (j = 0; entry[i].names[j]; j++); | |
4928 | elt = Fmake_vector (make_number (j + 1), Qnil); | |
4929 | ASET (elt, 0, make_number (entry[i].numeric)); | |
4930 | for (j = 0; entry[i].names[j]; j++) | |
d67b4f80 | 4931 | ASET (elt, j + 1, intern_c_string (entry[i].names[j])); |
d0ab1ebe KH |
4932 | ASET (table, i, elt); |
4933 | } | |
4934 | return table; | |
4935 | } | |
4936 | ||
d0818984 KH |
4937 | /* The deferred font-log data of the form [ACTION ARG RESULT]. |
4938 | If ACTION is not nil, that is added to the log when font_add_log is | |
4939 | called next time. At that time, ACTION is set back to nil. */ | |
4940 | static Lisp_Object Vfont_log_deferred; | |
4941 | ||
4942 | /* Prepend the font-related logging data in Vfont_log if it is not | |
4943 | `t'. ACTION describes a kind of font-related action (e.g. listing, | |
4944 | opening), ARG is the argument for the action, and RESULT is the | |
4945 | result of the action. */ | |
d0ab1ebe | 4946 | void |
675e2c69 | 4947 | font_add_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0ab1ebe | 4948 | { |
13a547c6 | 4949 | Lisp_Object val; |
d0ab1ebe KH |
4950 | int i; |
4951 | ||
d0ab1ebe KH |
4952 | if (EQ (Vfont_log, Qt)) |
4953 | return; | |
d0818984 KH |
4954 | if (STRINGP (AREF (Vfont_log_deferred, 0))) |
4955 | { | |
51b59d79 | 4956 | char *str = SSDATA (AREF (Vfont_log_deferred, 0)); |
d0818984 KH |
4957 | |
4958 | ASET (Vfont_log_deferred, 0, Qnil); | |
4959 | font_add_log (str, AREF (Vfont_log_deferred, 1), | |
4960 | AREF (Vfont_log_deferred, 2)); | |
4961 | } | |
4962 | ||
d0ab1ebe | 4963 | if (FONTP (arg)) |
db716644 KH |
4964 | { |
4965 | Lisp_Object tail, elt; | |
4966 | Lisp_Object equalstr = build_string ("="); | |
4967 | ||
4968 | val = Ffont_xlfd_name (arg, Qt); | |
4969 | for (tail = AREF (arg, FONT_EXTRA_INDEX); CONSP (tail); | |
4970 | tail = XCDR (tail)) | |
4971 | { | |
4972 | elt = XCAR (tail); | |
49f9c344 KH |
4973 | if (EQ (XCAR (elt), QCscript) |
4974 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4975 | val = concat3 (val, SYMBOL_NAME (QCscript), |
4976 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4977 | else if (EQ (XCAR (elt), QClang) |
4978 | && SYMBOLP (XCDR (elt))) | |
db716644 KH |
4979 | val = concat3 (val, SYMBOL_NAME (QClang), |
4980 | concat2 (equalstr, SYMBOL_NAME (XCDR (elt)))); | |
49f9c344 KH |
4981 | else if (EQ (XCAR (elt), QCotf) |
4982 | && CONSP (XCDR (elt)) && SYMBOLP (XCAR (XCDR (elt)))) | |
db716644 KH |
4983 | val = concat3 (val, SYMBOL_NAME (QCotf), |
4984 | concat2 (equalstr, | |
4985 | SYMBOL_NAME (XCAR (XCDR (elt))))); | |
4986 | } | |
4987 | arg = val; | |
4988 | } | |
72d36834 KH |
4989 | |
4990 | if (CONSP (result) | |
4991 | && VECTORP (XCAR (result)) | |
4992 | && ASIZE (XCAR (result)) > 0 | |
4993 | && FONTP (AREF (XCAR (result), 0))) | |
4994 | result = font_vconcat_entity_vectors (result); | |
d0ab1ebe | 4995 | if (FONTP (result)) |
d26424c5 KH |
4996 | { |
4997 | val = Ffont_xlfd_name (result, Qt); | |
4998 | if (! FONT_SPEC_P (result)) | |
4999 | val = concat3 (SYMBOL_NAME (AREF (result, FONT_TYPE_INDEX)), | |
5000 | build_string (":"), val); | |
5001 | result = val; | |
5002 | } | |
d0ab1ebe KH |
5003 | else if (CONSP (result)) |
5004 | { | |
13a547c6 | 5005 | Lisp_Object tail; |
d0ab1ebe KH |
5006 | result = Fcopy_sequence (result); |
5007 | for (tail = result; CONSP (tail); tail = XCDR (tail)) | |
5008 | { | |
5009 | val = XCAR (tail); | |
5010 | if (FONTP (val)) | |
5011 | val = Ffont_xlfd_name (val, Qt); | |
5012 | XSETCAR (tail, val); | |
5013 | } | |
5014 | } | |
5015 | else if (VECTORP (result)) | |
5016 | { | |
5017 | result = Fcopy_sequence (result); | |
5018 | for (i = 0; i < ASIZE (result); i++) | |
5019 | { | |
5020 | val = AREF (result, i); | |
5021 | if (FONTP (val)) | |
5022 | val = Ffont_xlfd_name (val, Qt); | |
5023 | ASET (result, i, val); | |
5024 | } | |
5025 | } | |
5026 | Vfont_log = Fcons (list3 (intern (action), arg, result), Vfont_log); | |
5027 | } | |
5028 | ||
d0818984 KH |
5029 | /* Record a font-related logging data to be added to Vfont_log when |
5030 | font_add_log is called next time. ACTION, ARG, RESULT are the same | |
5031 | as font_add_log. */ | |
5032 | ||
5033 | void | |
675e2c69 | 5034 | font_deferred_log (const char *action, Lisp_Object arg, Lisp_Object result) |
d0818984 | 5035 | { |
652b9560 KH |
5036 | if (EQ (Vfont_log, Qt)) |
5037 | return; | |
d0818984 KH |
5038 | ASET (Vfont_log_deferred, 0, build_string (action)); |
5039 | ASET (Vfont_log_deferred, 1, arg); | |
5040 | ASET (Vfont_log_deferred, 2, result); | |
ba3de0e8 | 5041 | } |
d0818984 | 5042 | |
c2f5bfd6 | 5043 | void |
971de7fb | 5044 | syms_of_font (void) |
c2f5bfd6 | 5045 | { |
4007dd1c KH |
5046 | sort_shift_bits[FONT_TYPE_INDEX] = 0; |
5047 | sort_shift_bits[FONT_SLANT_INDEX] = 2; | |
5048 | sort_shift_bits[FONT_WEIGHT_INDEX] = 9; | |
5049 | sort_shift_bits[FONT_SIZE_INDEX] = 16; | |
5050 | sort_shift_bits[FONT_WIDTH_INDEX] = 23; | |
5051 | /* Note that the other elements in sort_shift_bits are not used. */ | |
c2f5bfd6 | 5052 | |
1701724c KH |
5053 | staticpro (&font_charset_alist); |
5054 | font_charset_alist = Qnil; | |
5055 | ||
e0708580 | 5056 | DEFSYM (Qopentype, "opentype"); |
c2f5bfd6 | 5057 | |
9e1bb909 | 5058 | DEFSYM (Qascii_0, "ascii-0"); |
1bb1d99b KH |
5059 | DEFSYM (Qiso8859_1, "iso8859-1"); |
5060 | DEFSYM (Qiso10646_1, "iso10646-1"); | |
5061 | DEFSYM (Qunicode_bmp, "unicode-bmp"); | |
cf96c5c2 | 5062 | DEFSYM (Qunicode_sip, "unicode-sip"); |
1bb1d99b | 5063 | |
071132a9 KH |
5064 | DEFSYM (QCf, "Cf"); |
5065 | ||
c2f5bfd6 | 5066 | DEFSYM (QCotf, ":otf"); |
35027d0c | 5067 | DEFSYM (QClang, ":lang"); |
c2f5bfd6 | 5068 | DEFSYM (QCscript, ":script"); |
4c496d0d | 5069 | DEFSYM (QCantialias, ":antialias"); |
c2f5bfd6 KH |
5070 | |
5071 | DEFSYM (QCfoundry, ":foundry"); | |
5072 | DEFSYM (QCadstyle, ":adstyle"); | |
5073 | DEFSYM (QCregistry, ":registry"); | |
9331887d KH |
5074 | DEFSYM (QCspacing, ":spacing"); |
5075 | DEFSYM (QCdpi, ":dpi"); | |
ec6fe57c | 5076 | DEFSYM (QCscalable, ":scalable"); |
35027d0c KH |
5077 | DEFSYM (QCavgwidth, ":avgwidth"); |
5078 | DEFSYM (QCfont_entity, ":font-entity"); | |
5079 | DEFSYM (QCfc_unknown_spec, ":fc-unknown-spec"); | |
c2f5bfd6 | 5080 | |
ec6fe57c KH |
5081 | DEFSYM (Qc, "c"); |
5082 | DEFSYM (Qm, "m"); | |
5083 | DEFSYM (Qp, "p"); | |
5084 | DEFSYM (Qd, "d"); | |
5085 | ||
cf702558 CY |
5086 | DEFSYM (Qja, "ja"); |
5087 | DEFSYM (Qko, "ko"); | |
5088 | ||
42707278 JD |
5089 | DEFSYM (QCuser_spec, "user-spec"); |
5090 | ||
c2f5bfd6 KH |
5091 | staticpro (&null_vector); |
5092 | null_vector = Fmake_vector (make_number (0), Qnil); | |
5093 | ||
5094 | staticpro (&scratch_font_spec); | |
5095 | scratch_font_spec = Ffont_spec (0, NULL); | |
5096 | staticpro (&scratch_font_prefer); | |
5097 | scratch_font_prefer = Ffont_spec (0, NULL); | |
5098 | ||
d0818984 KH |
5099 | staticpro (&Vfont_log_deferred); |
5100 | Vfont_log_deferred = Fmake_vector (make_number (3), Qnil); | |
5101 | ||
6a3dadd2 | 5102 | #if 0 |
733fd013 KH |
5103 | #ifdef HAVE_LIBOTF |
5104 | staticpro (&otf_list); | |
5105 | otf_list = Qnil; | |
6a3dadd2 KH |
5106 | #endif /* HAVE_LIBOTF */ |
5107 | #endif /* 0 */ | |
733fd013 | 5108 | |
c2f5bfd6 KH |
5109 | defsubr (&Sfontp); |
5110 | defsubr (&Sfont_spec); | |
5111 | defsubr (&Sfont_get); | |
51cf11be | 5112 | #ifdef HAVE_WINDOW_SYSTEM |
b1868a1a | 5113 | defsubr (&Sfont_face_attributes); |
51cf11be | 5114 | #endif |
c2f5bfd6 KH |
5115 | defsubr (&Sfont_put); |
5116 | defsubr (&Slist_fonts); | |
35027d0c | 5117 | defsubr (&Sfont_family_list); |
c2f5bfd6 KH |
5118 | defsubr (&Sfind_font); |
5119 | defsubr (&Sfont_xlfd_name); | |
5120 | defsubr (&Sclear_font_cache); | |
071132a9 | 5121 | defsubr (&Sfont_shape_gstring); |
78a2f9cd | 5122 | defsubr (&Sfont_variation_glyphs); |
6a3dadd2 | 5123 | #if 0 |
733fd013 | 5124 | defsubr (&Sfont_drive_otf); |
e80e09b4 | 5125 | defsubr (&Sfont_otf_alternates); |
6a3dadd2 | 5126 | #endif /* 0 */ |
c2f5bfd6 KH |
5127 | |
5128 | #ifdef FONT_DEBUG | |
5129 | defsubr (&Sopen_font); | |
5130 | defsubr (&Sclose_font); | |
5131 | defsubr (&Squery_font); | |
a7840ffb | 5132 | defsubr (&Sfont_get_glyphs); |
ec6fe57c | 5133 | defsubr (&Sfont_match_p); |
10d16101 | 5134 | defsubr (&Sfont_at); |
c2f5bfd6 KH |
5135 | #if 0 |
5136 | defsubr (&Sdraw_string); | |
5137 | #endif | |
5138 | #endif /* FONT_DEBUG */ | |
a266686a | 5139 | #ifdef HAVE_WINDOW_SYSTEM |
72606e45 | 5140 | defsubr (&Sfont_info); |
a266686a | 5141 | #endif |
c2f5bfd6 | 5142 | |
29208e82 | 5143 | DEFVAR_LISP ("font-encoding-alist", Vfont_encoding_alist, |
819e81df KH |
5144 | doc: /* |
5145 | Alist of fontname patterns vs the corresponding encoding and repertory info. | |
5146 | Each element looks like (REGEXP . (ENCODING . REPERTORY)), | |
5147 | where ENCODING is a charset or a char-table, | |
5148 | and REPERTORY is a charset, a char-table, or nil. | |
5149 | ||
027a33c0 | 5150 | If ENCODING and REPERTORY are the same, the element can have the form |
819e81df KH |
5151 | \(REGEXP . ENCODING). |
5152 | ||
5153 | ENCODING is for converting a character to a glyph code of the font. | |
5154 | If ENCODING is a charset, encoding a character by the charset gives | |
5155 | the corresponding glyph code. If ENCODING is a char-table, looking up | |
5156 | the table by a character gives the corresponding glyph code. | |
5157 | ||
5158 | REPERTORY specifies a repertory of characters supported by the font. | |
5159 | If REPERTORY is a charset, all characters beloging to the charset are | |
5160 | supported. If REPERTORY is a char-table, all characters who have a | |
027a33c0 | 5161 | non-nil value in the table are supported. If REPERTORY is nil, Emacs |
819e81df KH |
5162 | gets the repertory information by an opened font and ENCODING. */); |
5163 | Vfont_encoding_alist = Qnil; | |
5164 | ||
933ac235 SM |
5165 | /* FIXME: These 3 vars are not quite what they appear: setq on them |
5166 | won't have any effect other than disconnect them from the style | |
5167 | table used by the font display code. So we make them read-only, | |
5168 | to avoid this confusing situation. */ | |
5169 | ||
29208e82 | 5170 | DEFVAR_LISP_NOPRO ("font-weight-table", Vfont_weight_table, |
d0ab1ebe KH |
5171 | doc: /* Vector of valid font weight values. |
5172 | Each element has the form: | |
5173 | [NUMERIC-VALUE SYMBOLIC-NAME ALIAS-NAME ...] | |
17ab8f5d | 5174 | NUMERIC-VALUE is an integer, and SYMBOLIC-NAME and ALIAS-NAME are symbols. */); |
d0ab1ebe | 5175 | Vfont_weight_table = BUILD_STYLE_TABLE (weight_table); |
933ac235 | 5176 | XSYMBOL (intern_c_string ("font-weight-table"))->constant = 1; |
d0ab1ebe | 5177 | |
29208e82 | 5178 | DEFVAR_LISP_NOPRO ("font-slant-table", Vfont_slant_table, |
d0ab1ebe | 5179 | doc: /* Vector of font slant symbols vs the corresponding numeric values. |
17ab8f5d | 5180 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5181 | Vfont_slant_table = BUILD_STYLE_TABLE (slant_table); |
933ac235 | 5182 | XSYMBOL (intern_c_string ("font-slant-table"))->constant = 1; |
d0ab1ebe | 5183 | |
29208e82 | 5184 | DEFVAR_LISP_NOPRO ("font-width-table", Vfont_width_table, |
d0ab1ebe | 5185 | doc: /* Alist of font width symbols vs the corresponding numeric values. |
17ab8f5d | 5186 | See `font-weight-table' for the format of the vector. */); |
d0ab1ebe | 5187 | Vfont_width_table = BUILD_STYLE_TABLE (width_table); |
933ac235 | 5188 | XSYMBOL (intern_c_string ("font-width-table"))->constant = 1; |
d0ab1ebe KH |
5189 | |
5190 | staticpro (&font_style_table); | |
5191 | font_style_table = Fmake_vector (make_number (3), Qnil); | |
5192 | ASET (font_style_table, 0, Vfont_weight_table); | |
5193 | ASET (font_style_table, 1, Vfont_slant_table); | |
5194 | ASET (font_style_table, 2, Vfont_width_table); | |
5195 | ||
29208e82 | 5196 | DEFVAR_LISP ("font-log", Vfont_log, doc: /* |
d0ab1ebe KH |
5197 | *Logging list of font related actions and results. |
5198 | The value t means to suppress the logging. | |
5199 | The initial value is set to nil if the environment variable | |
5200 | EMACS_FONT_LOG is set. Otherwise, it is set to t. */); | |
5201 | Vfont_log = Qnil; | |
5202 | ||
819e81df | 5203 | #ifdef HAVE_WINDOW_SYSTEM |
c2f5bfd6 | 5204 | #ifdef HAVE_FREETYPE |
35027d0c | 5205 | syms_of_ftfont (); |
c2f5bfd6 | 5206 | #ifdef HAVE_X_WINDOWS |
35027d0c KH |
5207 | syms_of_xfont (); |
5208 | syms_of_ftxfont (); | |
c2f5bfd6 | 5209 | #ifdef HAVE_XFT |
35027d0c | 5210 | syms_of_xftfont (); |
c2f5bfd6 KH |
5211 | #endif /* HAVE_XFT */ |
5212 | #endif /* HAVE_X_WINDOWS */ | |
5213 | #else /* not HAVE_FREETYPE */ | |
5214 | #ifdef HAVE_X_WINDOWS | |
35027d0c | 5215 | syms_of_xfont (); |
c2f5bfd6 KH |
5216 | #endif /* HAVE_X_WINDOWS */ |
5217 | #endif /* not HAVE_FREETYPE */ | |
5218 | #ifdef HAVE_BDFFONT | |
35027d0c | 5219 | syms_of_bdffont (); |
c2f5bfd6 KH |
5220 | #endif /* HAVE_BDFFONT */ |
5221 | #ifdef WINDOWSNT | |
35027d0c | 5222 | syms_of_w32font (); |
c2f5bfd6 | 5223 | #endif /* WINDOWSNT */ |
edfda783 AR |
5224 | #ifdef HAVE_NS |
5225 | syms_of_nsfont (); | |
5226 | #endif /* HAVE_NS */ | |
819e81df | 5227 | #endif /* HAVE_WINDOW_SYSTEM */ |
c2f5bfd6 | 5228 | } |
885b7d09 | 5229 | |
652b9560 | 5230 | void |
971de7fb | 5231 | init_font (void) |
652b9560 KH |
5232 | { |
5233 | Vfont_log = egetenv ("EMACS_FONT_LOG") ? Qnil : Qt; | |
5234 | } |