Mercurial > hg > xemacs-beta
annotate src/font-mgr.c @ 4935:7ef913bf3c9a
modify gdbinit to track Makefile.in.in, add command for update-elc-2
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Tue, 19 Jan 2010 01:24:21 -0600 |
| parents | 8b63e21b0436 |
| children | 304aebb79cd3 |
| rev | line source |
|---|---|
| 3354 | 1 /* Lisp font handling implementation for X with Xft. |
| 2 | |
| 3 Copyright (C) 2003 Eric Knauel and Matthias Neubauer | |
| 4 Copyright (C) 2005 Eric Knauel | |
|
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5 Copyright (C) 2004-2009 Free Software Foundation, Inc. |
| 3354 | 6 |
| 7 Authors: Eric Knauel <knauel@informatik.uni-tuebingen.de> | |
| 8 Matthias Neubauer <neubauer@informatik.uni-freiburg.de> | |
| 9 Stephen J. Turnbull <stephen@xemacs.org> | |
| 10 Created: 27 Oct 2003 | |
|
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parents:
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11 Updated: 18 November 2009 by Stephen J. Turnbull |
| 3354 | 12 |
| 13 This file is part of XEmacs. | |
| 14 | |
| 15 XEmacs is free software; you can redistribute it and/or modify it | |
| 16 under the terms of the GNU General Public License as published by the | |
| 17 Free Software Foundation; either version 2, or (at your option) any | |
| 18 later version. | |
| 19 | |
| 20 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 21 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 22 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 23 for more details. | |
| 24 | |
| 25 You should have received a copy of the GNU General Public License | |
| 26 along with XEmacs; see the file COPYING. If not, write to | |
| 27 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 28 Boston, MA 02111-1307, USA. */ | |
| 29 | |
| 30 /* Synched up with: Not in GNU Emacs. */ | |
| 31 | |
| 32 /* This module provides the Lisp interface to fonts in X11, including Xft, | |
| 33 but (at least at first) not GTK+ or Qt. | |
| 34 | |
| 35 Sealevel code should be in ../lwlib/lwlib-fonts.c or | |
| 36 ../lwlib/lwlib-colors.c. | |
| 37 */ | |
| 38 | |
| 39 #include <config.h> | |
| 40 #include "lisp.h" | |
| 41 #include "device.h" | |
| 42 #include "device-impl.h" | |
| 43 #include "console-x-impl.h" | |
| 44 #include "objects-x.h" | |
| 45 #include "objects-x-impl.h" | |
| 46 #include "hash.h" | |
| 47 #include "font-mgr.h" | |
| 48 | |
| 49 /* #### TO DO #### | |
| 50 . The "x-xft-*" and "x_xft_*" nomenclature is mostly redundant, especially | |
| 51 if we separate X fonts from Xft fonts, and use fontconfig more generally. | |
| 52 . We should support the most recent Xft first, old Xft libraries later. | |
| 53 . We may (think about it) wish to use fontconfig generally, even if we're | |
| 54 not using Xft. Either way, names that are really from fontconfig should | |
| 55 use the Fc* namespace. | |
| 56 . Mule-ize this file. | |
| 57 . Separate X Font Struct ops from Xft Font ops; give precedence to Xft but | |
| 58 allow fallback to X. | |
| 59 . Push decisions about font choice, defaults, fallbacks to Lisp; if we | |
| 60 really need efficiency, can reimplement in C later. | |
| 61 . Implement symbols interned in this file in the Q* namespace. | |
| 62 . Implement FcMatrix (Lisp vector). | |
| 63 . Implement FcCharSets (Lisp chartable? For implementation hints, see | |
| 64 FcCharSetFirstPage and FcCharSetNextPage). | |
| 65 . Implement FcConfigs. | |
| 66 DONE | |
| 67 . Fontconfig fontnames are encoded in UTF-8. | |
| 68 */ | |
| 69 | |
| 3360 | 70 Lisp_Object Qfont_mgr; |
| 3354 | 71 Lisp_Object Qfc_patternp; |
| 72 /* Lisp_Object Qfc_result_match; */ /* FcResultMatch */ | |
| 73 Lisp_Object Qfc_result_type_mismatch; /* FcResultTypeMismatch */ | |
| 74 Lisp_Object Qfc_result_no_match; /* FcResultNoMatch */ | |
| 75 Lisp_Object Qfc_result_no_id; /* FcResultNoId */ | |
| 76 Lisp_Object Qfc_internal_error; | |
|
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parents:
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changeset
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77 Lisp_Object Qfc_match_pattern; |
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parents:
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changeset
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78 Lisp_Object Qfc_match_font; |
| 3354 | 79 Lisp_Object Vxlfd_font_name_regexp; /* #### Really needed? */ |
| 3935 | 80 Fixnum xft_version; |
| 81 Fixnum fc_version; | |
| 3354 | 82 Fixnum debug_xft; /* Set to 1 enables lots of obnoxious messages. |
| 83 Setting it to 2 or 3 enables even more. */ | |
| 3931 | 84 #ifdef FONTCONFIG_EXPOSE_CONFIG |
| 85 Lisp_Object Qfc_configp; | |
| 86 static Lisp_Object Vfc_config_weak_list; | |
| 87 #endif | |
| 3354 | 88 |
| 89 /**************************************************************** | |
| 90 * FcPattern objects * | |
| 91 ****************************************************************/ | |
| 92 | |
| 93 static void | |
| 94 finalize_fc_pattern (void *header, int UNUSED (for_disksave)) | |
| 95 { | |
| 96 struct fc_pattern *p = (struct fc_pattern *) header; | |
| 97 if (p->fcpatPtr) | |
| 98 { | |
| 99 FcPatternDestroy (p->fcpatPtr); | |
| 100 p->fcpatPtr = 0; | |
| 101 } | |
| 102 } | |
| 103 | |
| 3906 | 104 static void |
| 105 print_fc_pattern (Lisp_Object obj, Lisp_Object printcharfun, | |
| 106 int UNUSED(escapeflag)) | |
| 107 { | |
| 108 struct fc_pattern *c = XFCPATTERN (obj); | |
| 109 if (print_readably) | |
| 110 printing_unreadable_object ("#<fc-pattern 0x%x>", c->header.uid); | |
| 111 write_fmt_string (printcharfun, "#<fc-pattern 0x%x>", c->header.uid); | |
| 112 } | |
| 113 | |
| 114 /* #### We really need an equal method and a hash method (required if you | |
| 115 have an equal method). For the equal method, we can probably use one | |
| 116 or both of | |
| 117 | |
| 118 -- Function: FcBool FcPatternEqual (const FcPattern *pa, const | |
| 119 FcPattern *pb); | |
| 120 Returns whether PA and PB are exactly alike. | |
| 121 | |
| 122 -- Function: FcBool FcPatternEqualSubset (const FcPattern *pa, const | |
| 123 FcPattern *pb, const FcObjectSet *os) | |
| 124 Returns whether PA and PB have exactly the same values for all of | |
| 125 the objects in OS. | |
| 126 | |
| 127 For the hash, we'll have to extract some subset of attributes. | |
| 128 | |
| 129 #### Crap. It's altogether unobvious what we need. x_color_instance | |
| 130 does have a hash method, but fonts are apparently special. I get the | |
| 131 feeling that for this to work properly we're going to need to switch | |
| 132 to fontconfig-based font specifications (although we can allow the | |
| 133 platform syntaxes, the underlying specification object will need to | |
| 134 conform to the fontconfig API, or more precisely the font-mgr API). | |
| 135 | |
| 136 I think the whole `font-truename' interface needs to be dropped. */ | |
| 137 | |
| 3354 | 138 static const struct memory_description fcpattern_description [] = { |
| 139 /* #### nothing here, is this right?? */ | |
| 140 { XD_END } | |
| 141 }; | |
| 142 | |
| 3906 | 143 DEFINE_LRECORD_IMPLEMENTATION("fc-pattern", fc_pattern, 0, |
| 144 0, print_fc_pattern, finalize_fc_pattern, | |
| 145 0, 0, fcpattern_description, | |
| 3354 | 146 struct fc_pattern); |
| 147 | |
| 148 /* | |
| 149 * Helper Functions | |
| 150 */ | |
| 151 static Lisp_Object make_xlfd_font_regexp (void); | |
| 152 static void string_list_to_fcobjectset (Lisp_Object list, FcObjectSet *os); | |
| 153 | |
| 154 /* | |
| 155 extract the C representation of the Lisp string STR and convert it | |
| 156 to the encoding used by the Fontconfig API for property and font | |
| 157 names. I suppose that Qnative is the right encoding, the manual | |
| 158 doesn't say much about this topic. This functions assumes that STR | |
| 159 is a Lisp string. | |
| 160 */ | |
| 161 #define extract_fcapi_string(str) \ | |
| 3469 | 162 (NEW_LISP_STRING_TO_EXTERNAL ((str), Qfc_font_name_encoding)) |
| 3354 | 163 |
| 3906 | 164 #define build_fcapi_string(str) \ |
| 165 (build_ext_string ((Extbyte *) (str), Qfc_font_name_encoding)) | |
| 166 | |
| 3360 | 167 /* #### This homebrew lashup should be replaced with FcConstants. |
| 168 | |
| 169 fontconfig assumes that objects (property names) are statically allocated, | |
| 3354 | 170 and you will get bizarre results if you pass Lisp string data or strings |
| 171 allocated on the stack as objects. fontconfig _does_ copy values, so we | |
| 172 (I hope) don't have to worry about that member. | |
| 173 | |
| 174 Probably these functions don't get called so often that the memory leak | |
| 175 due to strdup'ing every time we add a property would matter, but XEmacs | |
| 176 _is_ a long-running process. So we hash them. | |
| 177 | |
| 178 I suspect that using symbol names or even keywords does not provide | |
| 179 assurance that the string won't move in memory. So we hash them | |
| 3360 | 180 ourselves; hash.c hashtables do not interpret the value pointers. |
| 181 | |
| 182 This array should be FcChar8**, but GCC 4.x bitches about signedness. */ | |
| 4932 | 183 static const Extbyte *fc_standard_properties[] = { |
| 3360 | 184 /* treated specially, ordered first */ |
| 185 "family", "size", | |
| 186 /* remaining are alphabetized by group */ | |
| 187 /* standard properties in fontconfig and Xft v.2 */ | |
| 188 "antialias", "aspect", "autohint", "charset", "dpi", "file", | |
| 3354 | 189 "foundry", "ftface", "globaladvance", "hinting", "index", "lang", |
| 190 "minspace", "outline", "pixelsize", "rasterizer", "rgba", "scalable", | |
| 3360 | 191 "scale", "slant", "spacing", "style", "verticallayout", "weight", |
| 192 /* common in modern fonts */ | |
| 193 "fontformat", "fontversion", | |
| 3354 | 194 /* obsolete after Xft v. 1 */ |
| 195 "charwidth", "charheight", "core", "encoding", "render" | |
| 196 }; | |
| 197 | |
| 198 static struct hash_table *fc_property_name_hash_table; | |
| 199 | |
| 200 /* #### Maybe fc_intern should be exposed to LISP? The idea is that | |
| 201 fc-pattern-add could warn or error if the property isn't interned. */ | |
| 202 | |
| 3469 | 203 static const Extbyte * |
| 3354 | 204 fc_intern (Lisp_Object property) |
| 205 { | |
| 206 const void *dummy; | |
| 3469 | 207 const Extbyte *prop = extract_fcapi_string (property); |
| 3354 | 208 const void *val = gethash (prop, fc_property_name_hash_table, &dummy); |
| 209 | |
| 210 /* extract_fcapi_string returns something alloca'd | |
| 211 so we can just drop the old value of prop on the floor */ | |
| 212 if (val) | |
| 3469 | 213 prop = (const Extbyte *) val; |
| 3354 | 214 else |
| 215 { | |
| 3469 | 216 prop = (const Extbyte *) FcStrCopy ((FcChar8 *) prop); |
| 3354 | 217 puthash (prop, NULL, fc_property_name_hash_table); |
| 218 } | |
| 219 return prop; | |
| 220 } | |
| 221 | |
| 222 DEFUN("fc-pattern-p", Ffc_pattern_p, 1, 1, 0, /* | |
| 223 Returns t if OBJECT is of type fc-pattern, nil otherwise. | |
| 224 */ | |
| 225 (object)) | |
| 226 { | |
| 227 return FCPATTERNP(object) ? Qt : Qnil; | |
| 228 } | |
| 229 | |
| 230 DEFUN("fc-pattern-create", Ffc_pattern_create, 0, 0, 0, /* | |
| 231 Return a new, empty fc-pattern object. | |
| 232 */ | |
| 233 ()) | |
| 234 { | |
| 235 fc_pattern *fcpat = | |
| 236 ALLOC_LCRECORD_TYPE (struct fc_pattern, &lrecord_fc_pattern); | |
| 237 | |
| 238 fcpat->fcpatPtr = FcPatternCreate(); | |
| 239 return wrap_fcpattern(fcpat); | |
| 240 } | |
| 241 | |
| 242 DEFUN("fc-name-parse", Ffc_name_parse, 1, 1, 0, /* | |
| 243 Parse an Fc font name and return its representation as a fc pattern object. | |
| 244 */ | |
| 245 (name)) | |
| 246 { | |
| 247 struct fc_pattern *fcpat = | |
| 248 ALLOC_LCRECORD_TYPE (struct fc_pattern, &lrecord_fc_pattern); | |
| 249 | |
| 3906 | 250 CHECK_STRING(name); |
| 3354 | 251 |
| 3469 | 252 fcpat->fcpatPtr = FcNameParse ((FcChar8 *) extract_fcapi_string (name)); |
| 3354 | 253 return wrap_fcpattern(fcpat); |
| 254 } | |
| 255 | |
| 256 /* #### Ga-a-ack! Xft's similar function is actually a different API. | |
| 257 We provide both. */ | |
| 258 DEFUN("fc-name-unparse", Ffc_name_unparse, 1, 1, 0, /* | |
| 259 Unparse an fc pattern object to a string. | |
| 260 */ | |
| 261 (pattern)) | |
| 262 { | |
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263 FcChar8 *name; |
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264 Lisp_Object result; |
| 3354 | 265 CHECK_FCPATTERN(pattern); |
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266 name = FcNameUnparse (XFCPATTERN_PTR (pattern)); |
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267 result = build_fcapi_string (name); |
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268 xfree (name, FcChar8 *); |
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269 return result; |
| 3354 | 270 } |
| 271 | |
| 272 DEFUN("fc-pattern-duplicate", Ffc_pattern_duplicate, 1, 1, 0, /* | |
| 273 Make a copy of the fc pattern object PATTERN and return it. | |
| 274 */ | |
| 275 (pattern)) | |
| 276 { | |
| 277 struct fc_pattern *copy = NULL; | |
| 278 CHECK_FCPATTERN(pattern); | |
| 279 | |
| 280 copy = ALLOC_LCRECORD_TYPE (struct fc_pattern, &lrecord_fc_pattern); | |
| 281 copy->fcpatPtr = FcPatternDuplicate(XFCPATTERN_PTR(pattern)); | |
| 282 return wrap_fcpattern(copy); | |
| 283 } | |
| 284 | |
| 285 DEFUN("fc-pattern-add", Ffc_pattern_add, 3, 3, 0, /* | |
| 286 Add attributes to the pattern object PATTERN. PROPERTY is a string naming | |
| 287 the attribute to add, VALUE the value for this attribute. | |
| 288 | |
| 289 VALUE may be a string, integer, float, or symbol, in which case the value | |
| 290 will be added as an FcChar8[], int, double, or FcBool respectively. | |
| 291 */ | |
| 292 (pattern, property, value)) | |
| 293 { | |
| 294 Bool res = 0; | |
| 3469 | 295 const Extbyte *obj; |
| 3354 | 296 FcPattern *fcpat; |
| 297 | |
| 298 CHECK_FCPATTERN(pattern); | |
| 299 CHECK_STRING(property); | |
| 300 | |
| 301 obj = fc_intern (property); | |
| 302 fcpat = XFCPATTERN_PTR (pattern); | |
| 303 | |
| 304 if (STRINGP(value)) | |
| 305 { | |
| 306 FcChar8 *str = (FcChar8 *) extract_fcapi_string (value); | |
| 307 res = FcPatternAddString (fcpat, obj, str); | |
| 308 } | |
| 309 else if (INTP(value)) | |
| 310 { | |
| 311 res = FcPatternAddInteger (fcpat, obj, XINT(value)); | |
| 312 } | |
| 313 else if (FLOATP(value)) | |
| 314 { | |
| 315 res = FcPatternAddDouble (fcpat, obj, (double) XFLOAT_DATA(value)); | |
| 316 } | |
| 317 else if (SYMBOLP(value)) | |
| 318 { | |
| 319 res = FcPatternAddBool (fcpat, obj, !NILP(value)); | |
| 320 } | |
| 321 /* else ... maybe we should wta here? */ | |
| 322 | |
| 323 return res ? Qt : Qnil; | |
| 324 } | |
| 325 | |
| 326 DEFUN("fc-pattern-del", Ffc_pattern_del, 2, 2, 0, /* | |
| 327 Remove attribute PROPERTY from fc pattern object OBJECT. | |
| 328 */ | |
| 329 (pattern, property)) | |
| 330 { | |
| 331 Bool res; | |
| 332 | |
| 333 CHECK_FCPATTERN(pattern); | |
| 334 CHECK_STRING(property); | |
| 335 | |
| 3469 | 336 res = FcPatternDel(XFCPATTERN_PTR(pattern), extract_fcapi_string (property)); |
| 3354 | 337 return res ? Qt : Qnil; |
| 338 } | |
| 339 | |
| 340 /* Generic interface to FcPatternGet() | |
| 341 * Don't support the losing symbol-for-property interface. | |
| 342 */ | |
| 343 DEFUN("fc-pattern-get", Ffc_pattern_get, 2, 4, 0, /* | |
| 344 From PATTERN, extract PROPERTY for the ID'th member, of type TYPE. | |
| 345 | |
| 346 PATTERN is an Xft (fontconfig) pattern object. | |
| 347 PROPERTY is a string naming an fontconfig font property. | |
| 348 Optional ID is a nonnegative integer indexing the list of values for PROPERTY | |
| 349 stored in PATTERN, defaulting to 0 (the first value). | |
| 350 Optional TYPE is a symbol, one of 'string, 'boolean, 'integer, 'float, | |
| 351 'double, 'matrix, 'charset, or 'void, corresponding to the FcValue types. | |
| 352 ('float is an alias for 'double). | |
| 353 | |
| 354 The Lisp types returned will conform to TYPE: | |
| 355 string string | |
| 356 boolean `t' or `nil' | |
| 357 integer integer | |
| 358 double (float) float | |
| 359 matrix not implemented | |
| 360 charset not implemented | |
| 361 void not implemented | |
| 362 | |
| 363 Symbols with names of the form "fc-result-DESCRIPTION" are returned when | |
| 364 the desired value is not available. These are | |
| 365 | |
| 366 fc-result-type-mismatch the value found has an unexpected type | |
| 367 fc-result-no-match there is no such attribute | |
| 368 fc-result-no-id there is no value for the requested ID | |
| 369 | |
| 370 The types of the following standard properties are predefined by fontconfig. | |
| 371 The symbol 'fc-result-type-mismatch will be returned if the object exists but | |
| 372 TYPE does not match the predefined type. It is best not to specify a type | |
| 373 for predefined properties, as a mistake here ensures error returns on the | |
| 374 correct type. | |
| 375 | |
| 376 Each standard property has a convenience accessor defined in fontconfig.el, | |
| 377 named in the form "fc-pattern-get-PROPERTY". The convenience functions are | |
| 378 preferred to `fc-pattern-get' since a typo in the string naming a property | |
| 379 will result in a silent null return, while a typo in a function name will | |
| 380 usually result in a compiler or runtime \"not fboundp\" error. You may use | |
| 381 `defsubst' to define convenience functions for non-standard properties. | |
| 382 | |
| 383 family String Font family name | |
| 384 style String Font style. Overrides weight and slant | |
| 385 slant Int Italic, oblique or roman | |
| 386 weight Int Light, medium, demibold, bold or black | |
| 387 size Double Point size | |
| 388 aspect Double Stretches glyphs horizontally before hinting | |
| 389 pixelsize Double Pixel size | |
| 390 spacing Int Proportional, monospace or charcell | |
| 391 foundry String Font foundry name | |
| 392 antialias Bool Whether glyphs can be antialiased | |
| 393 hinting Bool Whether the rasterizer should use hinting | |
| 394 verticallayout Bool Use vertical layout | |
| 395 autohint Bool Use autohinter instead of normal hinter | |
| 396 globaladvance Bool Use font global advance data | |
| 397 file String The filename holding the font | |
| 398 index Int The index of the font within the file | |
| 399 ftface FT_Face Use the specified FreeType face object | |
| 400 rasterizer String Which rasterizer is in use | |
| 401 outline Bool Whether the glyphs are outlines | |
| 402 scalable Bool Whether glyphs can be scaled | |
| 403 scale Double Scale factor for point->pixel conversions | |
| 404 dpi Double Target dots per inch | |
| 405 rgba Int unknown, rgb, bgr, vrgb, vbgr, none - subpixel geometry | |
| 406 minspace Bool Eliminate leading from line spacing | |
| 407 charset CharSet Unicode chars encoded by the font | |
| 408 lang String List of RFC-3066-style languages this font supports | |
| 409 | |
| 410 The FT_Face, Matrix, CharSet types are unimplemented, so the corresponding | |
| 411 properties are not accessible from Lisp at this time. If the value of a | |
| 412 property returned has type FT_Face, FcCharSet, or FcMatrix, | |
| 413 `fc-result-type-mismatch' is returned. | |
| 414 | |
| 415 The following properties which were standard in Xft v.1 are obsolete in | |
| 416 Xft v.2: encoding, charwidth, charheight, core, and render. */ | |
| 417 (pattern, property, id, type)) | |
| 418 { | |
| 3469 | 419 Extbyte *fc_property; |
| 3354 | 420 FcResult fc_result; |
| 421 FcValue fc_value; | |
| 422 | |
| 423 /* | |
| 424 process arguments | |
| 425 */ | |
| 426 CHECK_FCPATTERN (pattern); | |
| 427 | |
| 428 #if 0 | |
| 429 /* Don't support the losing symbol-for-property interface. */ | |
| 430 property = SYMBOLP (property) ? symbol_name (XSYMBOL (property)) : property; | |
| 431 #endif | |
| 432 if (STRINGP (property)) | |
| 433 { | |
| 3469 | 434 fc_property = extract_fcapi_string (property); |
| 3354 | 435 } |
| 436 else | |
| 437 { | |
| 438 /* if we allow symbols, this would need to be | |
| 439 list3 (Qlambda, list1 (Qobject), | |
| 440 list3 (Qor, list2 (Qstringp, Qobject), | |
| 441 list2 (Qsymbolp, Qobject))) | |
| 442 or something like that? */ | |
| 443 dead_wrong_type_argument (Qstringp, property); | |
| 444 } | |
| 445 | |
| 446 if (!NILP (id)) CHECK_NATNUM (id); | |
| 447 if (!NILP (type)) CHECK_SYMBOL (type); | |
| 448 | |
| 449 /* get property */ | |
| 450 fc_result = FcPatternGet (XFCPATTERN_PTR (pattern), | |
| 451 fc_property, | |
| 452 NILP (id) ? 0 : XINT(id), | |
| 453 &fc_value); | |
| 454 | |
| 455 switch (fc_result) | |
| 456 { | |
| 457 case FcResultMatch: | |
| 458 /* wrap it and return */ | |
| 459 switch (fc_value.type) | |
| 460 { | |
| 461 case FcTypeInteger: | |
| 462 return ((!NILP (type) && !EQ (type, Qinteger)) | |
| 463 ? Qfc_result_type_mismatch : make_int (fc_value.u.i)); | |
| 464 case FcTypeDouble: | |
| 465 return ((!NILP (type) && !EQ (type, intern ("double")) | |
| 466 && !EQ (type, Qfloat)) | |
| 467 ? Qfc_result_type_mismatch : make_float (fc_value.u.d)); | |
| 468 case FcTypeString: | |
| 469 return ((!NILP (type) && !EQ (type, Qstring)) | |
| 470 ? Qfc_result_type_mismatch | |
| 3906 | 471 : build_fcapi_string (fc_value.u.s)); |
| 3354 | 472 case FcTypeBool: |
| 473 return ((!NILP (type) && !EQ (type, Qboolean)) | |
| 474 ? Qfc_result_type_mismatch : fc_value.u.b ? Qt : Qnil); | |
| 475 case FcTypeMatrix: | |
| 476 return Qfc_result_type_mismatch; | |
| 477 /* #### unimplemented | |
| 478 return ((!NILP (type) && !EQ (type, intern ("matrix"))) | |
| 479 ? Qfc_result_type_mismatch : make_int (fc_value.u.m)); | |
| 480 */ | |
| 481 case FcTypeCharSet: | |
| 482 return Qfc_result_type_mismatch; | |
| 483 /* #### unimplemented | |
| 484 return ((!NILP (type) && !EQ (type, intern ("charset"))) | |
| 485 ? Qfc_result_type_mismatch : make_int (fc_value.u.c)); | |
| 486 */ | |
| 487 } | |
| 488 case FcResultTypeMismatch: | |
| 489 return Qfc_result_type_mismatch; | |
| 490 case FcResultNoMatch: | |
| 491 return Qfc_result_no_match; | |
| 492 case FcResultNoId: | |
| 493 return Qfc_result_no_id; | |
| 494 default: | |
| 495 return Qfc_internal_error; | |
| 496 } | |
| 497 } | |
| 498 | |
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499 /* FcConfig handling functions. */ |
| 3354 | 500 |
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501 /* We obviously need to be careful about garbage collecting the current |
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502 FcConfig. I infer from the documentation of FcConfigDestroy that that |
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503 is the only reference maintained by fontconfig. |
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504 So we keep track of our own references on a weak list, and only cons a |
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505 new object if we don't already have a reference to it there. */ |
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506 |
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507 enum DestroyFontsetP { DestroyNo = 0, DestroyYes = 1 }; |
| 3354 | 508 |
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509 static Lisp_Object |
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510 fc_config_create_using (FcConfig * (*create_function) ()) |
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511 { |
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512 FcConfig *fc = (*create_function) (); |
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513 Lisp_Object configs = XWEAK_LIST_LIST (Vfc_config_weak_list); |
| 3354 | 514 |
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515 /* Linear search: fc_configs are not going to multiply like conses. */ |
| 3360 | 516 { |
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517 LIST_LOOP_2 (cfg, configs) |
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518 if (fc == XFCCONFIG_PTR (cfg)) |
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519 return cfg; |
| 3360 | 520 } |
| 521 | |
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522 { |
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523 fc_config *fccfg = |
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524 ALLOC_LCRECORD_TYPE (struct fc_config, &lrecord_fc_config); |
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525 fccfg->fccfgPtr = fc; |
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526 configs = Fcons (wrap_fcconfig (fccfg), configs); |
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527 XWEAK_LIST_LIST (Vfc_config_weak_list) = configs; |
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528 return wrap_fcconfig (fccfg); |
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529 } |
| 3354 | 530 } |
| 531 | |
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532 static Lisp_Object |
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533 fc_strlist_to_lisp_using (FcStrList * (*getter) (FcConfig *), |
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534 Lisp_Object config) |
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535 { |
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536 FcChar8 *thing; |
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537 Lisp_Object value = Qnil; |
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538 FcStrList *thing_list; |
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539 |
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540 CHECK_FCCONFIG (config); |
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541 thing_list = (*getter) (XFCCONFIG_PTR(config)); |
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542 /* Yes, we need to do this check -- sheesh, Keith! */ |
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543 if (!thing_list) |
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544 return Qnil; |
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545 while ((thing = FcStrListNext (thing_list))) |
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546 value = Fcons (build_fcapi_string (thing), value); |
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547 FcStrListDone (thing_list); |
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548 return value; |
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549 } |
| 3931 | 550 |
| 3354 | 551 static Lisp_Object |
| 3931 | 552 fontset_to_list (FcFontSet *fontset, enum DestroyFontsetP destroyp) |
| 3354 | 553 { |
| 554 int idx; | |
| 555 Lisp_Object fontlist = Qnil; | |
| 556 fc_pattern *fcpat; | |
| 557 | |
| 558 /* #### improve this error message */ | |
| 559 if (!fontset) | |
| 4860 | 560 invalid_state ("failed to create FcFontSet", Qunbound); |
| 3354 | 561 for (idx = 0; idx < fontset->nfont; ++idx) |
| 562 { | |
| 563 fcpat = | |
| 564 ALLOC_LCRECORD_TYPE (struct fc_pattern, &lrecord_fc_pattern); | |
| 565 fcpat->fcpatPtr = FcPatternDuplicate (fontset->fonts[idx]); | |
| 566 fontlist = Fcons (wrap_fcpattern(fcpat), fontlist); | |
| 567 } | |
| 3931 | 568 if (destroyp) |
| 569 FcFontSetDestroy (fontset); | |
| 3354 | 570 return fontlist; |
| 571 } | |
| 572 | |
| 3931 | 573 DEFUN("fc-config-p", Ffc_config_p, 1, 1, 0, /* |
| 574 Returns t if OBJECT is of type fc-config, nil otherwise. | |
| 575 */ | |
| 576 (object)) | |
| 577 { | |
| 578 return FCCONFIGP (object) ? Qt : Qnil; | |
| 579 } | |
| 580 | |
| 581 DEFUN("fc-config-create", Ffc_config_create, 0, 0, 0, /* | |
| 582 -- Function: FcConfig *FcConfigCreate (void) | |
| 583 Creates an empty configuration. */ | |
| 584 ()) | |
| 585 { | |
| 586 return fc_config_create_using (&FcConfigCreate); | |
| 587 } | |
| 588 | |
| 589 #if 0 | |
| 590 /* I'm sorry, but we just don't do this in Lisp, OK? | |
| 591 Don't even think about implementing this. */ | |
| 592 DEFUN("fc-config-destroy", Ffc_config_destroy, 1, 1, 0, /* | |
| 593 -- Function: void FcConfigDestroy (FcConfig *config) | |
| 594 Destroys a configuration and any data associated with it. Note | |
| 595 that calling this function with the return value from | |
| 596 FcConfigGetCurrent will place the library in an indeterminate | |
| 597 state. */ | |
| 598 (config)) | |
| 599 { | |
| 600 signal_error (Qunimplemented, "No user-servicable parts!", | |
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601 intern ("fc-config-destroy")); |
| 3931 | 602 } |
| 603 #endif | |
| 604 | |
| 605 DEFUN("fc-config-up-to-date", Ffc_config_up_to_date, 1, 1, 0, /* | |
| 606 -- Function: FcBool FcConfigUptoDate (FcConfig *config) | |
| 607 Checks all of the files related to 'config' and returns whether the | |
| 608 in-memory version is in sync with the disk version. */ | |
| 609 (config)) | |
| 610 { | |
| 611 CHECK_FCCONFIG (config); | |
| 612 return FcConfigUptoDate (XFCCONFIG_PTR (config)) == FcFalse ? Qnil : Qt; | |
| 613 } | |
| 614 | |
| 615 DEFUN("fc-config-build-fonts", Ffc_config_build_fonts, 1, 1, 0, /* | |
| 616 -- Function: FcBool FcConfigBuildFonts (FcConfig *config) | |
| 617 Builds the set of available fonts for the given configuration. | |
| 618 Note that any changes to the configuration after this call have | |
| 619 indeterminate effects. Returns FcFalse if this operation runs out | |
| 620 of memory. | |
| 621 XEmacs: signal out-of-memory, or return nil on success. */ | |
| 622 (config)) | |
| 623 { | |
| 624 CHECK_FCCONFIG (config); | |
| 625 if (FcConfigBuildFonts (XFCCONFIG_PTR (config)) == FcFalse) | |
| 626 out_of_memory ("FcConfigBuildFonts failed", config); | |
| 627 return Qnil; | |
| 628 } | |
| 629 | |
| 630 DEFUN("fc-config-get-config-dirs", Ffc_config_get_config_dirs, 1, 1, 0, /* | |
| 631 -- Function: FcStrList *FcConfigGetConfigDirs (FcConfig *config) | |
| 632 Returns the list of font directories specified in the | |
| 633 configuration files for 'config'. Does not include any | |
| 634 subdirectories. */ | |
| 635 (config)) | |
| 636 { | |
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637 return fc_strlist_to_lisp_using (&FcConfigGetConfigDirs, config); |
| 3931 | 638 } |
| 639 | |
| 640 DEFUN("fc-config-get-font-dirs", Ffc_config_get_font_dirs, 1, 1, 0, /* | |
| 641 -- Function: FcStrList *FcConfigGetFontDirs (FcConfig *config) | |
| 642 Returns the list of font directories in 'config'. This includes the | |
| 643 configured font directories along with any directories below those | |
| 644 in the filesystem. */ | |
| 645 (config)) | |
| 646 { | |
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647 return fc_strlist_to_lisp_using (&FcConfigGetFontDirs, config); |
| 3931 | 648 } |
| 649 | |
| 650 DEFUN("fc-config-get-config-files", Ffc_config_get_config_files, 1, 1, 0, /* | |
| 651 -- Function: FcStrList *FcConfigGetConfigFiles (FcConfig *config) | |
| 652 Returns the list of known configuration files used to generate | |
| 653 'config'. Note that this will not include any configuration done | |
| 654 with FcConfigParse. */ | |
| 655 (config)) | |
| 656 { | |
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657 return fc_strlist_to_lisp_using (&FcConfigGetConfigFiles, config); |
| 3931 | 658 } |
| 659 | |
| 660 DEFUN("fc-config-get-cache", Ffc_config_get_cache, 1, 1, 0, /* | |
| 661 -- Function: char *FcConfigGetCache (FcConfig *config) | |
| 662 Returns the name of the file used to store per-user font | |
| 663 information. */ | |
| 664 (config)) | |
| 665 { | |
| 666 CHECK_FCCONFIG (config); | |
| 667 /* Surely FcConfigGetCache just casts an FcChar8* to char*. */ | |
| 668 return build_fcapi_string ((FcChar8 *) FcConfigGetCache (XFCCONFIG_PTR (config))); | |
| 669 } | |
| 670 | |
| 671 DEFUN("fc-config-get-fonts", Ffc_config_get_fonts, 2, 2, 0, /* | |
| 672 -- Function: FcFontSet *FcConfigGetFonts (FcConfig *config, FcSetName set) | |
| 673 Returns one of the two sets of fonts from the configuration as | |
| 674 specified by 'set'. | |
| 675 `FcSetName' | |
| 676 Specifies one of the two sets of fonts available in a | |
| 677 configuration; FcSetSystem for those fonts specified in the | |
| 678 configuration and FcSetApplication which holds fonts provided by | |
| 679 the application. */ | |
| 680 (config, set)) | |
| 681 { | |
| 682 FcSetName name = FcSetSystem; | |
| 683 FcFontSet *fs = NULL; | |
| 684 | |
| 685 CHECK_FCCONFIG (config); | |
| 686 CHECK_SYMBOL (set); | |
| 687 | |
| 688 if (EQ (set, intern ("fc-set-system"))) | |
| 689 name = FcSetSystem; | |
| 690 else if (EQ (set, intern ("fc-set-application"))) | |
| 691 name = FcSetApplication; | |
| 692 else | |
| 693 wtaerror ("must be in (fc-set-system fc-set-application)", set); | |
| 694 | |
| 695 fs = FcConfigGetFonts (XFCCONFIG_PTR (config), name); | |
| 696 return fs ? fontset_to_list (fs, DestroyNo) : Qnil; | |
| 697 } | |
| 698 | |
| 699 DEFUN("fc-config-set-current", Ffc_config_set_current, 1, 1, 0, /* | |
| 700 -- Function: FcBool FcConfigSetCurrent (FcConfig *config) | |
| 701 Sets the current default configuration to 'config'. Implicitly | |
| 702 calls FcConfigBuildFonts if necessary, returning FcFalse if that | |
| 703 call fails. | |
| 704 XEmacs: signals out-of-memory if FcConfigBuildFonts fails, or args-out-of-range | |
| 705 if the resulting FcConfig has no fonts (which would crash XEmacs if installed). | |
| 706 */ | |
| 707 (config)) | |
| 708 { | |
| 709 CHECK_FCCONFIG (config); | |
| 710 /* *sigh* "Success" DOES NOT mean you have any fonts available. It is | |
| 711 easy to crash fontconfig, and XEmacs with it. Without the following | |
| 712 check, this will do it: | |
| 713 (progn | |
| 714 (fc-config-set-current (fc-config-create)) | |
| 715 (set-face-font 'default "serif-12")) | |
| 716 */ | |
| 717 | |
| 718 if (FcConfigBuildFonts (XFCCONFIG_PTR (config)) == FcFalse) | |
| 719 out_of_memory ("FcConfigBuildFonts failed", config); | |
| 720 /* #### We'd like to avoid this consing, and FcConfigGetFonts sometimes | |
| 721 returns NULL, but it doesn't always. This will do for now .... */ | |
| 722 if (NILP (Ffc_config_get_fonts (config, intern ("fc-set-system"))) | |
| 723 && NILP (Ffc_config_get_fonts (config, intern ("fc-set-application")))) | |
| 724 signal_error (intern ("args-out-of-range"), "no fonts found", config); | |
| 725 /* Should never happen, but I don't trust Keith anymore .... */ | |
| 726 if (FcConfigSetCurrent (XFCCONFIG_PTR (config)) == FcFalse) | |
| 727 out_of_memory ("FcConfigBuildFonts failed in set", config); | |
| 728 return Qnil; | |
| 729 } | |
| 730 | |
| 731 DEFUN("fc-config-get-blanks", Ffc_config_get_blanks, 1, 1, 0, /* | |
| 732 -- Function: FcBlanks *FcConfigGetBlanks (FcConfig *config) | |
| 733 Returns the FcBlanks object associated with the given | |
| 734 configuration, if no blanks were present in the configuration, | |
| 735 this function will return 0. | |
| 736 XEmacs: should convert to a chartable. | |
| 737 #### Unimplemented. */ | |
| 738 (config)) | |
| 739 { | |
| 740 CHECK_FCCONFIG (config); | |
| 741 signal_error (Qunimplemented, "no method to convert FcBlanks object", | |
| 742 intern ("fc-config-get-blanks")); | |
| 743 } | |
| 744 | |
| 745 DEFUN("fc-config-get-rescan-interval", Ffc_config_get_rescan_interval, 1, 1, 0, /* | |
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746 -- Function: int FcConfigGetRescanInterval (FcConfig *config) |
| 3931 | 747 Returns the interval between automatic checks of the configuration |
| 748 (in seconds) specified in 'config'. The configuration is checked | |
| 749 during a call to FcFontList when this interval has passed since | |
| 750 the last check. */ | |
| 751 (config)) | |
| 752 { | |
| 753 CHECK_FCCONFIG (config); | |
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754 return make_int (FcConfigGetRescanInterval (XFCCONFIG_PTR (config))); |
| 3931 | 755 } |
| 756 | |
| 757 DEFUN("fc-config-set-rescan-interval", Ffc_config_set_rescan_interval, 2, 2, 0, /* | |
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758 -- Function: FcBool FcConfigSetRescanInterval (FcConfig *config, int |
| 3931 | 759 rescanInterval) |
| 760 Sets the rescan interval; returns FcFalse if an error occurred. | |
| 761 XEmacs: signal such error, or return nil on success. */ | |
| 762 (config, rescan_interval)) | |
| 763 { | |
| 764 CHECK_FCCONFIG (config); | |
| 765 CHECK_INT (rescan_interval); | |
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766 if (FcConfigSetRescanInterval (XFCCONFIG_PTR (config), |
| 3931 | 767 XINT (rescan_interval)) == FcFalse) |
| 768 signal_error (Qio_error, "FcConfigSetRescanInverval barfed", | |
| 769 intern ("fc-config-set-rescan-interval")); | |
| 770 return Qnil; | |
| 771 } | |
| 772 | |
| 773 /* #### This might usefully be made interactive. */ | |
| 774 DEFUN("fc-config-app-font-add-file", Ffc_config_app_font_add_file, 2, 2, 0, /* | |
| 775 -- Function: FcBool FcConfigAppFontAddFile (FcConfig *config, const | |
| 776 char *file) | |
| 777 Adds an application-specific font to the configuration. */ | |
| 778 (config, file)) | |
| 779 { | |
| 780 CHECK_FCCONFIG (config); | |
| 781 CHECK_STRING (file); | |
| 782 if (FcConfigAppFontAddFile | |
| 783 (XFCCONFIG_PTR (config), | |
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784 /* #### FIXME! is Qfile_name right? */ |
| 4849 | 785 (FcChar8 *) NEW_LISP_STRING_TO_EXTERNAL (file, Qfile_name)) == FcFalse) |
| 3931 | 786 return Qnil; |
| 787 else | |
| 788 return Qt; | |
| 789 } | |
| 790 | |
| 791 /* #### This might usefully be made interactive. */ | |
| 792 DEFUN("fc-config-app-font-add-dir", Ffc_config_app_font_add_dir, 2, 2, 0, /* | |
| 793 -- Function: FcBool FcConfigAppFontAddDir (FcConfig *config, const | |
| 794 char *dir) | |
| 795 Scans the specified directory for fonts, adding each one found to | |
| 796 the application-specific set of fonts. */ | |
| 797 (config, dir)) | |
| 798 { | |
| 799 CHECK_FCCONFIG (config); | |
| 800 CHECK_STRING (dir); | |
| 801 if (FcConfigAppFontAddDir | |
| 802 (XFCCONFIG_PTR (config), | |
|
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803 /* #### FIXME! is Qfile_name right? */ |
| 4849 | 804 (FcChar8 *) NEW_LISP_STRING_TO_EXTERNAL (dir, Qfile_name)) == FcFalse) |
| 3931 | 805 return Qnil; |
| 806 else | |
| 807 return Qt; | |
| 808 } | |
| 809 | |
| 810 /* #### This might usefully be made interactive. */ | |
| 811 DEFUN("fc-config-app-font-clear", Ffc_config_app_font_clear, 1, 1, 0, /* | |
| 812 -- Function: void FcConfigAppFontClear (FcConfig *config) | |
| 813 Clears the set of application-specific fonts. */ | |
| 814 (config)) | |
| 815 { | |
| 816 CHECK_FCCONFIG (config); | |
| 817 FcConfigAppFontClear (XFCCONFIG_PTR (config)); | |
| 818 return Qnil; | |
| 819 } | |
| 820 | |
| 821 /* These functions provide some control over how the default | |
| 822 configuration of the library is initialized. (This configuration is | |
| 823 normally implicitly initialized.) */ | |
| 824 | |
| 825 DEFUN("fc-config-filename", Ffc_config_filename, 1, 1, 0, /* | |
| 826 -- Function: char *FcConfigFilename (const char *name) | |
| 827 Given the specified external entity name, return the associated | |
| 828 filename. This provides applications a way to convert various | |
| 829 configuration file references into filename form. | |
| 830 | |
| 831 A null or empty 'name' indicates that the default configuration | |
| 832 file should be used; which file this references can be overridden | |
| 833 with the FC_CONFIG_FILE environment variable. Next, if the name | |
| 834 starts with '~', it refers to a file in the current users home | |
| 835 directory. Otherwise if the name doesn't start with '/', it | |
| 836 refers to a file in the default configuration directory; the | |
| 837 built-in default directory can be overridden with the | |
| 838 FC_CONFIG_DIR environment variable. */ | |
| 839 (name)) | |
| 840 { | |
| 4932 | 841 const Ascbyte *fcname = ""; |
| 3931 | 842 |
| 843 if (!NILP (name)) | |
| 844 { | |
| 845 CHECK_STRING (name); | |
|
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846 /* #### FIXME! is Qfile_name right? */ |
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847 fcname = NEW_LISP_STRING_TO_EXTERNAL (name, Qfile_name); |
| 3931 | 848 } |
| 849 return (build_fcapi_string (FcConfigFilename ((FcChar8 *) fcname))); | |
| 850 } | |
| 851 | |
| 852 DEFUN("fc-init-load-config", Ffc_init_load_config, 0, 0, 0, /* | |
| 853 -- Function: FcConfig *FcInitLoadConfig (void) | |
| 854 Loads the default configuration file and returns the resulting | |
| 855 configuration. Does not load any font information. */ | |
| 856 ()) | |
| 857 { | |
| 858 return fc_config_create_using (&FcInitLoadConfig); | |
| 859 } | |
| 860 | |
| 861 DEFUN("fc-init-load-config-and-fonts", Ffc_init_load_config_and_fonts, 0, 0, 0, /* | |
| 862 -- Function: FcConfig *FcInitLoadConfigAndFonts (void) | |
| 863 Loads the default configuration file and builds information about | |
| 864 the available fonts. Returns the resulting configuration. */ | |
| 865 ()) | |
| 866 { | |
| 867 return fc_config_create_using (&FcInitLoadConfigAndFonts); | |
| 868 } | |
| 869 | |
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870 DEFUN("fc-config-get-current", Ffc_config_get_current, 0, 0, 0, /* |
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871 -- Function: FcConfig *FcConfigGetCurrent (void) |
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872 Returns the current default configuration. */ |
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873 ()) |
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874 { |
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875 return fc_config_create_using (&FcConfigGetCurrent); |
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876 } |
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877 |
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878 /* Pattern manipulation functions. */ |
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879 |
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880 DEFUN("fc-default-substitute", Ffc_default_substitute, 1, 1, 0, /* |
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881 Adds defaults for certain attributes if not specified in PATTERN. |
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882 FcPattern PATTERN is modified in-place, and nil is returned. |
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883 * Patterns without a specified style or weight are set to Medium |
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884 * Patterns without a specified style or slant are set to Roman |
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885 * Patterns without a specified pixel size are given one computed from any |
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886 specified point size (default 12), dpi (default 75) and scale (default 1). */ |
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887 (pattern)) |
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888 { |
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889 CHECK_FCPATTERN (pattern); |
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890 FcDefaultSubstitute (XFCPATTERN_PTR (pattern)); |
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891 return Qnil; |
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892 } |
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893 |
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894 /* -- Function: FcBool FcConfigSubstituteWithPat (FcConfig *config, |
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895 FcPattern *p, FcPattern *p_pat FcMatchKind kind) |
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896 OMITTED: use optional arguments in `fc-config-substitute'. */ |
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897 |
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898 DEFUN("fc-config-substitute", Ffc_config_substitute, 1, 4, 0, /* |
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899 Modifies PATTERN according to KIND and TESTPAT using operations from CONFIG. |
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900 PATTERN is modified in-place. Returns an undocumented Boolean value. |
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901 If optional KIND is `fc-match-pattern', then those tagged as pattern operations |
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902 are applied, else if KIND is `fc-match-font', those tagged as font operations |
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903 are applied and TESTPAT is used for <test> elements with target=pattern. KIND |
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904 defaults to `fc-match-font'. |
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905 If optional TESTPAT is nil, it is ignored. Otherwise it must be an FcPattern. |
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906 Optional CONFIG must be an FcConfig, defaulting to the current one. |
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907 |
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908 Note that this function actually corresponds to FcConfigSubstituteWithPat, and |
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909 the argument order is changed to take advantage of Lisp optional arguments. */ |
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910 (pattern, kind, testpat, config)) |
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911 { |
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912 FcMatchKind knd; |
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913 |
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914 /* There ought to be a standard idiom for this.... */ |
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915 if (NILP (kind) |
| 4860 | 916 || EQ (kind, Qfc_match_font)) |
|
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917 knd = FcMatchFont; |
| 4860 | 918 else if (EQ (kind, Qfc_match_pattern)) |
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919 knd = FcMatchPattern; |
| 4860 | 920 else |
| 921 wtaerror ("need `fc-match-pattern' or `fc-match-font'", kind); | |
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922 |
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923 /* Typecheck arguments */ |
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924 CHECK_FCPATTERN (pattern); |
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925 if (!NILP (testpat)) CHECK_FCPATTERN (testpat); |
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926 if (!NILP (config)) CHECK_FCCONFIG (config); |
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927 |
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928 return (FcConfigSubstituteWithPat |
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929 (NILP (config) ? FcConfigGetCurrent () : XFCCONFIG_PTR (config), |
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930 XFCPATTERN_PTR (pattern), |
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931 NILP (testpat) ? NULL : XFCPATTERN_PTR (testpat), |
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932 knd) == FcTrue) |
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933 ? Qt : Qnil; |
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934 } |
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935 |
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936 /* Pattern matching functions. */ |
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937 |
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938 /* The following functions return fonts that match a certain pattern. |
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939 `FcFontRenderPrepare' and `FcFontMatch' always return a single best |
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940 match. `FcFontList' returns the list of fonts that match a given |
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941 pattern on a certain set of properties. `FcFontSort' returns the |
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942 entire list of fonts, sorted in order of match quality, possibly |
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943 filtering out fonts that do not provide additional characters beyond |
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944 those provided by preferred fonts. */ |
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945 |
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946 DEFUN("fc-font-render-prepare", Ffc_font_render_prepare, 2, 3, 0, /* |
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947 Return a new pattern blending PATTERN and FONT. |
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948 Optional CONFIG is an FcConfig, defaulting to the current one. |
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949 The returned pattern consists of elements of FONT not appearing in PATTERN, |
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950 elements of PATTERN not appearing in FONT, and the best matching value from |
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951 PATTERN for elements appearing in both. The result is passed to |
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952 FcConfigSubstitute with 'kind' FcMatchFont and then returned. */ |
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953 (pattern, font, config)) |
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954 { |
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955 if (NILP (config)) { |
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956 config = Ffc_config_get_current (); |
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957 } |
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958 CHECK_FCPATTERN (pattern); |
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959 CHECK_FCPATTERN (font); |
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960 CHECK_FCCONFIG (config); |
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961 |
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962 /* I don't think this can fail? */ |
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963 return wrap_fcpattern (FcFontRenderPrepare (XFCCONFIG_PTR(config), |
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964 XFCPATTERN_PTR(font), |
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965 XFCPATTERN_PTR(pattern))); |
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966 } |
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967 |
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968 DEFUN("fc-font-match", Ffc_font_match, 2, 3, 0, /* |
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969 Return the font on DEVICE that most closely matches PATTERN. |
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970 |
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971 DEVICE is an X11 device. |
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972 PATTERN is a fontconfig pattern object. |
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973 Optional CONFIG is an FcConfig, defaulting to the current one. |
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974 Returns a fontconfig pattern object representing the closest match to the |
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975 given pattern, or an error code. Possible error codes are |
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976 `fc-result-no-match' and `fc-result-no-id'. |
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977 PATTERN is massaged with FcConfigSubstitute and FcDefaultSubstitute before |
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978 being processed by FcFontMatch. */ |
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979 (device, pattern, config)) |
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980 { |
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981 FcResult res; |
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982 struct fc_pattern *res_fcpat; |
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983 FcPattern *p; |
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984 FcConfig *fcc; |
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985 |
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986 CHECK_FCPATTERN(pattern); |
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987 if (NILP(device)) |
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988 return Qnil; |
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989 CHECK_X_DEVICE(device); |
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990 if (!DEVICE_LIVE_P(XDEVICE(device))) |
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991 return Qnil; |
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992 if (!NILP (config)) |
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993 CHECK_FCCONFIG (config); |
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994 |
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995 res_fcpat = ALLOC_LCRECORD_TYPE (struct fc_pattern, &lrecord_fc_pattern); |
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996 p = XFCPATTERN_PTR(pattern); |
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997 fcc = NILP (config) ? FcConfigGetCurrent () : XFCCONFIG_PTR (config); |
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998 |
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999 FcConfigSubstitute (fcc, p, FcMatchPattern); |
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1000 FcDefaultSubstitute (p); |
|
4809
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1001 res = FcResultMatch; |
|
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1002 res_fcpat->fcpatPtr = FcFontMatch (fcc, p, &res); |
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1003 |
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1004 if (res_fcpat->fcpatPtr == NULL) |
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1005 switch (res) { |
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1006 case FcResultNoMatch: |
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1007 return Qfc_result_no_match; |
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1008 case FcResultNoId: |
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1009 return Qfc_result_no_id; |
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1010 default: |
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1011 return Qfc_internal_error; |
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1012 } |
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1013 else |
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1014 return wrap_fcpattern(res_fcpat); |
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1015 } |
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1016 |
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1017 /* #### fix this name to correspond to Ben's new nomenclature */ |
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1018 DEFUN("fc-list-fonts-pattern-objects", Ffc_list_fonts_pattern_objects, |
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1019 3, 3, 0, /* |
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1020 Return a list of fonts on DEVICE that match PATTERN for PROPERTIES. |
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1021 Each font is represented by a fontconfig pattern object. |
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1022 |
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1023 DEVICE is an X11 device. |
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1024 PATTERN is a fontconfig pattern to be matched. |
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1025 PROPERTIES is a list of property names (strings) that should match. |
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1026 |
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1027 #### DEVICE is unused, ignored, and may be removed if it's not needed to |
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1028 match other font-listing APIs. */ |
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1029 (UNUSED (device), pattern, properties)) |
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1030 { |
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1031 FcObjectSet *os; |
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1032 FcFontSet *fontset; |
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1033 |
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1034 CHECK_FCPATTERN (pattern); |
|
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1035 CHECK_LIST (properties); |
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1036 |
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1037 os = FcObjectSetCreate (); |
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1038 string_list_to_fcobjectset (properties, os); |
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1039 /* #### why don't we need to do the "usual substitutions"? */ |
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1040 fontset = FcFontList (NULL, XFCPATTERN_PTR (pattern), os); |
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1041 FcObjectSetDestroy (os); |
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1042 |
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1043 return fontset_to_list (fontset, DestroyYes); |
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1044 |
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1045 } |
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1046 |
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1047 /* #### maybe this can/should be folded into fc-list-fonts-pattern-objects? */ |
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1048 DEFUN("fc-font-sort", Ffc_font_sort, 2, 4, 0, /* |
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1049 Return a list of all fonts sorted by proximity to PATTERN. |
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1050 Each font is represented by a fontconfig pattern object. |
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1051 |
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1052 DEVICE is an X11 device. |
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1053 PATTERN is a fontconfig pattern to be matched. |
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1054 Optional argument TRIM, if non-nil, means to trim trailing fonts that do not |
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1055 contribute new characters to the union repertoire. |
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1056 |
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1057 #### Optional argument NOSUB, if non-nil, suppresses some of the usual |
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1058 property substitutions. DON'T USE THIS in production code, it is intended |
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1059 for exploring behavior of fontconfig and will be removed when this code is |
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1060 stable. |
|
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1061 |
|
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1062 #### DEVICE is unused, ignored, and may be removed if it's not needed to |
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1063 match other font-listing APIs. */ |
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1064 (UNUSED (device), pattern, trim, nosub)) |
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1065 { |
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1066 CHECK_FCPATTERN (pattern); |
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1067 |
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1068 { |
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1069 FcConfig *fcc = FcConfigGetCurrent(); |
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1070 FcFontSet *fontset; |
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1071 FcPattern *p = XFCPATTERN_PTR (pattern); |
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1072 FcResult fcresult; |
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1073 |
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1074 if (NILP(nosub)) /* #### temporary debug hack */ |
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1075 FcDefaultSubstitute (p); |
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1076 FcConfigSubstitute (fcc, p, FcMatchPattern); |
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1077 fontset = FcFontSort (fcc, p, !NILP(trim), NULL, &fcresult); |
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1078 |
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1079 return fontset_to_list (fontset, DestroyYes); |
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1080 } |
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1081 } |
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1082 |
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1083 #ifdef FONTCONFIG_EXPOSE_CONFIG |
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1084 |
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1085 /* Configuration routines --- for debugging |
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1086 Don't depend on these routines being available in the future! |
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1087 |
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1088 3.2.10 Initialization |
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1089 --------------------- |
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1090 |
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1091 An FcConfig object holds the internal representation of a configuration. |
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1092 There is a default configuration which applications may use by passing |
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1093 0 to any function using the data within an FcConfig. |
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1094 */ |
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1095 |
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1096 static void |
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1097 finalize_fc_config (void *header, int UNUSED (for_disksave)) |
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1098 { |
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1099 struct fc_config *p = (struct fc_config *) header; |
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1100 if (p->fccfgPtr && p->fccfgPtr != FcConfigGetCurrent()) |
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1101 { |
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1102 /* If we get here, all of *our* references are garbage (see comment on |
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1103 fc_config_create_using() for why), and the only reference that |
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1104 fontconfig keeps is the current FcConfig. */ |
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1105 FcConfigDestroy (p->fccfgPtr); |
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1106 } |
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1107 p->fccfgPtr = 0; |
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1108 } |
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1109 |
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1110 static void |
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1111 print_fc_config (Lisp_Object obj, Lisp_Object printcharfun, |
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1112 int UNUSED(escapeflag)) |
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1113 { |
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1114 struct fc_config *c = XFCCONFIG (obj); |
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1115 if (print_readably) |
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1116 printing_unreadable_object ("#<fc-config 0x%x>", c->header.uid); |
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1117 write_fmt_string (printcharfun, "#<fc-config 0x%x>", c->header.uid); |
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1118 } |
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1119 |
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1120 static const struct memory_description fcconfig_description [] = { |
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1121 /* #### nothing here, is this right?? */ |
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1122 { XD_END } |
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1123 }; |
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1124 |
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1125 DEFINE_LRECORD_IMPLEMENTATION("fc-config", fc_config, 0, |
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1126 0, print_fc_config, finalize_fc_config, 0, 0, |
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1127 fcconfig_description, |
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1128 struct fc_config); |
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1129 |
| 3931 | 1130 DEFUN("fc-init", Ffc_init, 0, 0, 0, /* |
| 1131 -- Function: FcBool FcInit (void) | |
| 1132 Loads the default configuration file and the fonts referenced | |
| 1133 therein and sets the default configuration to that result. | |
| 1134 Returns whether this process succeeded or not. If the default | |
| 1135 configuration has already been loaded, this routine does nothing | |
| 1136 and returns FcTrue. */ | |
| 1137 ()) | |
| 1138 { | |
| 1139 return (FcInit () == FcTrue) ? Qt : Qnil; | |
| 1140 } | |
| 1141 | |
| 1142 DEFUN("fc-get-version", Ffc_get_version, 0, 0, 0, /* | |
| 1143 -- Function: int FcGetVersion (void) | |
| 1144 Returns the version number of the library. | |
| 3935 | 1145 XEmacs: No, this should NOT return a pretty string. |
| 3931 | 1146 (let ((i (fc-get-version))) |
| 1147 (format "%d.%d.%d" (/ i 10000) (mod (/ i 100) 100) (mod i 100))) | |
| 3935 | 1148 gives the usual x.y.z format. This is the version of the .so. It can be |
| 1149 checked against `fc-version', which is the version of fontconfig.h. | |
| 1150 It's probably not a disaster if `(> (fc-get-version) fc-version)'. */ | |
| 3931 | 1151 ()) |
| 1152 { | |
| 1153 return make_int (FcGetVersion ()); | |
| 1154 } | |
| 1155 | |
| 1156 DEFUN("fc-init-reinitialize", Ffc_init_reinitialize, 0, 0, 0, /* | |
| 1157 -- Function: FcBool FcInitReinitialize (void) | |
| 1158 Forces the default configuration file to be reloaded and resets | |
| 1159 the default configuration. */ | |
| 1160 ()) | |
| 1161 { | |
| 1162 return (FcInitReinitialize () == FcTrue) ? Qt : Qnil; | |
| 1163 } | |
| 1164 | |
| 1165 DEFUN("fc-init-bring-up-to-date", Ffc_init_bring_up_to_date, 0, 0, 0, /* | |
| 1166 -- Function: FcBool FcInitBringUptoDate (void) | |
| 1167 Checks the rescan interval in the default configuration, checking | |
| 1168 the configuration if the interval has passed and reloading the | |
| 1169 configuration when any changes are detected. */ | |
| 1170 ()) | |
| 1171 { | |
| 1172 return (FcInitBringUptoDate () == FcTrue) ? Qt : Qnil; | |
| 1173 } | |
| 1174 | |
| 1175 #endif /* FONTCONFIG_EXPOSE_CONFIG */ | |
| 1176 | |
| 3354 | 1177 DEFUN("xlfd-font-name-p", Fxlfd_font_name_p, 1, 1, 0, /* |
| 1178 Check whether the string FONTNAME is a XLFD font name. */ | |
| 1179 (fontname)) | |
| 1180 { | |
| 1181 CHECK_STRING(fontname); | |
| 1182 /* #### should bind `case-fold-search' here? */ | |
| 1183 return Fstring_match(Vxlfd_font_name_regexp, fontname, Qnil, Qnil); | |
| 1184 } | |
| 1185 | |
| 1186 /* FcPatternPrint: there is no point in having wrappers fc-pattern-print, | |
| 1187 Ffc_pattern_print since this function prints to stdout. */ | |
| 1188 | |
| 1189 /* Initialization of font-mgr */ | |
| 1190 | |
| 1191 #define XE_XLFD_SEPARATOR "-" | |
| 1192 /* XLFD specifies ISO 8859-1 encoding, but we can't handle non-ASCII | |
| 1193 in Mule when this function is called. So use HPC. */ | |
| 1194 #if 0 | |
| 1195 #define XE_XLFD_PREFIX "\\(\\+[\040-\176\240-\377]*\\)?-" | |
| 1196 #define XE_XLFD_OPT_TEXT "\\([\040-\044\046-\176\240-\377]*\\)" | |
| 1197 #define XE_XLFD_TEXT "\\([\040-\044\046-\176\240-\377]+\\)" | |
| 1198 #else | |
| 1199 #define XE_XLFD_PREFIX "\\(\\+[\040-\176]*\\)?-" | |
| 1200 #define XE_XLFD_OPT_TEXT "\\([^-]*\\)" | |
| 1201 #define XE_XLFD_TEXT "\\([^-]+\\)" | |
| 1202 #endif | |
| 1203 | |
| 1204 #define XE_XLFD_SLANT "\\([0-9ior?*][iot]?\\)" | |
| 1205 #define XE_XLFD_SPACING "\\([cmp?*]\\)" | |
| 1206 /* Hyphen as minus conflicts with use as separator. */ | |
| 1207 #define XE_XLFD_OPT_NEGATE "~?" | |
| 1208 #define XE_XLFD_NUMBER "\\([0-9?*]+\\)" | |
| 1209 #define XE_XLFD_PSIZE "\\([0-9?*]+\\|\\[[ 0-9+~.e?*]+\\]\\)" | |
| 1210 | |
| 1211 /* Call this only from the init code | |
| 1212 #### This is really horrible, let's get rid of it, please. */ | |
| 1213 static Lisp_Object | |
| 1214 make_xlfd_font_regexp (void) | |
| 1215 { | |
| 1216 struct gcpro gcpro1; | |
| 1217 unsigned i; | |
| 1218 Lisp_Object reg = Qnil; | |
| 1219 const Extbyte *re[] = /* #### This could just be catenated by | |
| 1220 cpp and passed to build_ext_string. */ | |
| 1221 { | |
| 1222 /* Regular expression matching XLFDs as defined by XLFD v. 1.5. | |
| 1223 Matches must be case-insensitive. | |
| 1224 PSIZE is a pixel or point size, which may be a "matrix". The | |
| 1225 syntax of a matrix is not checked, just some lexical properties. | |
| 1226 AFAICT none of the TEXT fields except adstyle is optional. | |
| 1227 | |
| 1228 NB. It should not be a problem if this matches "too much", since | |
| 1229 an "old" server will simply not be able to find a matching font. */ | |
| 1230 "\\`", | |
| 1231 XE_XLFD_PREFIX, /* prefix */ | |
| 1232 XE_XLFD_TEXT, /* foundry */ | |
| 1233 XE_XLFD_SEPARATOR, | |
| 1234 XE_XLFD_TEXT, /* family */ | |
| 1235 XE_XLFD_SEPARATOR, | |
| 1236 XE_XLFD_TEXT, /* weight */ | |
| 1237 XE_XLFD_SEPARATOR, | |
| 1238 XE_XLFD_SLANT, /* slant */ | |
| 1239 XE_XLFD_SEPARATOR, | |
| 1240 XE_XLFD_TEXT, /* swidth */ | |
| 1241 XE_XLFD_SEPARATOR, | |
| 1242 XE_XLFD_OPT_TEXT, /* adstyle */ | |
| 1243 XE_XLFD_SEPARATOR, | |
| 1244 XE_XLFD_PSIZE, /* pixelsize */ | |
| 1245 XE_XLFD_SEPARATOR, | |
| 1246 XE_XLFD_PSIZE, /* pointsize */ | |
| 1247 XE_XLFD_SEPARATOR, | |
| 1248 XE_XLFD_NUMBER, /* resx */ | |
| 1249 XE_XLFD_SEPARATOR, | |
| 1250 XE_XLFD_NUMBER, /* resy */ | |
| 1251 XE_XLFD_SEPARATOR, | |
| 1252 XE_XLFD_SPACING, /* spacing */ | |
| 1253 XE_XLFD_SEPARATOR, | |
| 1254 XE_XLFD_OPT_NEGATE, /* avgwidth */ | |
| 1255 XE_XLFD_NUMBER, | |
| 1256 XE_XLFD_SEPARATOR, | |
| 1257 XE_XLFD_TEXT, /* registry */ | |
| 1258 XE_XLFD_SEPARATOR, | |
| 1259 XE_XLFD_TEXT, /* encoding */ | |
| 1260 "\\'" | |
| 1261 }; | |
| 1262 | |
| 1263 GCPRO1 (reg); | |
| 1264 for (i = 0; i < sizeof(re)/sizeof(Extbyte *); i++) | |
| 1265 { | |
| 1266 /* #### Currently this is Host Portable Coding, not ISO 8859-1. */ | |
| 1267 reg = concat2(reg, build_ext_string (re[i], Qx_font_name_encoding)); | |
| 1268 } | |
| 1269 | |
| 1270 RETURN_UNGCPRO (reg); | |
| 1271 } | |
| 1272 #undef XE_XLFD_SEPARATOR | |
| 1273 #undef XE_XLFD_PREFIX | |
| 1274 #undef XE_XLFD_OPT_TEXT | |
| 1275 #undef XE_XLFD_TEXT | |
| 1276 #undef XE_XLFD_OPT_SLANT | |
| 1277 #undef XE_XLFD_OPT_SPACING | |
| 1278 #undef XE_XLFD_OPT_NEGATE | |
| 1279 #undef XE_XLFD_NUMBER | |
| 1280 #undef XE_XLFD_PSIZE | |
| 1281 | |
| 1282 #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ | |
| 1283 ? ((unsigned long) (x)) : ((unsigned long) (y))) | |
| 1284 | |
| 1285 static void | |
| 1286 string_list_to_fcobjectset (Lisp_Object list, FcObjectSet *os) | |
| 1287 { | |
| 1288 EXTERNAL_LIST_LOOP_2 (elt, list) | |
| 1289 { | |
| 3469 | 1290 const Extbyte *s; |
| 3354 | 1291 |
| 1292 CHECK_STRING (elt); | |
| 1293 s = fc_intern (elt); | |
| 1294 FcObjectSetAdd (os, s); | |
| 1295 } | |
| 1296 } | |
| 1297 | |
| 1298 void | |
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1299 syms_of_font_mgr (void) { |
| 3354 | 1300 INIT_LRECORD_IMPLEMENTATION(fc_pattern); |
| 1301 | |
| 1302 DEFSYMBOL_MULTIWORD_PREDICATE(Qfc_patternp); | |
| 1303 | |
| 1304 DEFSYMBOL(Qfc_result_type_mismatch); | |
| 1305 DEFSYMBOL(Qfc_result_no_match); | |
| 1306 DEFSYMBOL(Qfc_result_no_id); | |
| 1307 DEFSYMBOL(Qfc_internal_error); | |
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1308 DEFSYMBOL(Qfc_match_pattern); |
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1309 DEFSYMBOL(Qfc_match_font); |
| 3360 | 1310 DEFSYMBOL(Qfont_mgr); |
| 3354 | 1311 |
| 1312 DEFSUBR(Ffc_pattern_p); | |
| 1313 DEFSUBR(Ffc_pattern_create); | |
| 1314 DEFSUBR(Ffc_name_parse); | |
| 1315 DEFSUBR(Ffc_name_unparse); | |
| 1316 DEFSUBR(Ffc_pattern_duplicate); | |
| 1317 DEFSUBR(Ffc_pattern_add); | |
| 1318 DEFSUBR(Ffc_pattern_del); | |
| 1319 DEFSUBR(Ffc_pattern_get); | |
| 1320 DEFSUBR(Ffc_list_fonts_pattern_objects); | |
| 1321 DEFSUBR(Ffc_font_sort); | |
| 1322 DEFSUBR(Ffc_font_match); | |
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1323 DEFSUBR(Ffc_default_substitute); |
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1324 DEFSUBR(Ffc_config_substitute); |
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1325 DEFSUBR(Ffc_font_render_prepare); |
| 3354 | 1326 DEFSUBR(Fxlfd_font_name_p); |
| 3931 | 1327 |
| 1328 #ifdef FONTCONFIG_EXPOSE_CONFIG | |
| 1329 INIT_LRECORD_IMPLEMENTATION(fc_config); | |
| 1330 | |
| 1331 DEFSYMBOL_MULTIWORD_PREDICATE(Qfc_configp); | |
| 1332 | |
| 1333 DEFSUBR(Ffc_config_p); | |
| 1334 DEFSUBR(Ffc_config_create); | |
| 1335 #if 0 | |
| 1336 DEFSUBR(Ffc_config_destroy); | |
| 1337 #endif | |
| 1338 DEFSUBR(Ffc_config_set_current); | |
| 1339 DEFSUBR(Ffc_config_get_current); | |
| 1340 DEFSUBR(Ffc_config_up_to_date); | |
| 1341 DEFSUBR(Ffc_config_build_fonts); | |
| 1342 DEFSUBR(Ffc_config_get_config_dirs); | |
| 1343 DEFSUBR(Ffc_config_get_font_dirs); | |
| 1344 DEFSUBR(Ffc_config_get_config_files); | |
| 1345 DEFSUBR(Ffc_config_get_cache); | |
| 1346 DEFSUBR(Ffc_config_get_fonts); | |
| 1347 DEFSUBR(Ffc_config_get_blanks); | |
| 1348 DEFSUBR(Ffc_config_get_rescan_interval); | |
| 1349 DEFSUBR(Ffc_config_set_rescan_interval); | |
| 1350 DEFSUBR(Ffc_config_app_font_add_file); | |
| 1351 DEFSUBR(Ffc_config_app_font_add_dir); | |
| 1352 DEFSUBR(Ffc_config_app_font_clear); | |
| 1353 DEFSUBR(Ffc_config_filename); | |
| 1354 DEFSUBR(Ffc_init_load_config); | |
| 1355 DEFSUBR(Ffc_init_load_config_and_fonts); | |
| 1356 DEFSUBR(Ffc_init); | |
| 1357 DEFSUBR(Ffc_get_version); | |
| 1358 DEFSUBR(Ffc_init_reinitialize); | |
| 1359 DEFSUBR(Ffc_init_bring_up_to_date); | |
| 1360 #endif /* FONTCONFIG_EXPOSE_CONFIG */ | |
| 3354 | 1361 } |
| 1362 | |
| 1363 void | |
| 1364 vars_of_font_mgr (void) | |
| 1365 { | |
| 3935 | 1366 /* #### The next two DEFVARs belong somewhere else. */ |
| 3354 | 1367 |
| 1368 /* #### I know, but the right fix is use the generic debug facility. */ | |
| 1369 DEFVAR_INT ("xft-debug-level", &debug_xft /* | |
| 1370 Level of debugging messages to issue to stderr for Xft. | |
| 1371 A nonnegative integer. Set to 0 to suppress all warnings. | |
| 1372 Default is 1 to ensure a minimum of debugging output at initialization. | |
| 1373 Higher levels give even more information. | |
| 1374 */ ); | |
|
4757
a23ac8f90a49
Improve warning and error messages from Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4328
diff
changeset
|
1375 debug_xft = 0; |
| 3354 | 1376 |
| 3935 | 1377 DEFVAR_CONST_INT("xft-version", &xft_version /* |
| 3354 | 1378 The major version number of the Xft library being used. |
| 1379 */ ); | |
| 3935 | 1380 xft_version = XFT_VERSION; |
| 1381 | |
| 1382 DEFVAR_CONST_INT("fc-version", &fc_version /* | |
| 1383 The version number of fontconfig.h. It can be checked against | |
| 1384 `(fc-get-version)', which is the version of the .so. | |
| 1385 It's probably not a disaster if `(> (fc-get-version) fc-version)'. | |
| 1386 */ ); | |
| 1387 fc_version = FC_VERSION; | |
| 3354 | 1388 |
| 3360 | 1389 Fprovide (intern ("font-mgr")); |
| 3354 | 1390 } |
| 1391 | |
| 1392 void | |
| 1393 complex_vars_of_font_mgr (void) | |
| 1394 { | |
| 3931 | 1395 #ifdef FONTCONFIG_EXPOSE_CONFIG |
| 1396 Vfc_config_weak_list = make_weak_list (WEAK_LIST_SIMPLE); | |
| 1397 staticpro (&Vfc_config_weak_list); | |
| 1398 #endif | |
| 1399 | |
| 3354 | 1400 DEFVAR_LISP("xft-xlfd-font-regexp", &Vxlfd_font_name_regexp /* |
| 1401 The regular expression used to match XLFD font names. */ | |
| 1402 ); | |
| 1403 Vxlfd_font_name_regexp = make_xlfd_font_regexp(); | |
| 1404 } | |
| 1405 | |
| 1406 void | |
| 1407 reinit_vars_of_font_mgr (void) | |
| 1408 { | |
| 1409 int i, size = (int) countof (fc_standard_properties); | |
| 1410 | |
| 1411 FcInit (); | |
| 1412 | |
| 1413 fc_property_name_hash_table = make_string_hash_table (size); | |
| 1414 for (i = 0; i < size; ++i) | |
| 1415 puthash (fc_standard_properties[i], NULL, fc_property_name_hash_table); | |
| 1416 } | |
| 1417 |