Mercurial > hg > xemacs-beta
annotate src/font-mgr.c @ 5197:ce8ffb95bbe3
finish up CHANGES-beta -- all changes thru Apr 9, 2010
-------------------- ChangeLog entries follow: --------------------
ChangeLog addition:
2010-04-09 Ben Wing <ben@xemacs.org>
* CHANGES-beta:
Update with my changes to the trunk since the release of 21.5.29
in 2009 up through April 9, 2010.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Fri, 09 Apr 2010 02:33:11 -0500 |
| parents | b65692aa90d8 |
| children | c096d8051f89 308d34e9f07d |
| 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. |
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6 Copyright (C) 2010 Ben Wing. |
| 3354 | 7 |
| 8 Authors: Eric Knauel <knauel@informatik.uni-tuebingen.de> | |
| 9 Matthias Neubauer <neubauer@informatik.uni-freiburg.de> | |
| 10 Stephen J. Turnbull <stephen@xemacs.org> | |
| 11 Created: 27 Oct 2003 | |
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12 Updated: 18 November 2009 by Stephen J. Turnbull |
| 3354 | 13 |
| 14 This file is part of XEmacs. | |
| 15 | |
| 16 XEmacs is free software; you can redistribute it and/or modify it | |
| 17 under the terms of the GNU General Public License as published by the | |
| 18 Free Software Foundation; either version 2, or (at your option) any | |
| 19 later version. | |
| 20 | |
| 21 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 22 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 23 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 24 for more details. | |
| 25 | |
| 26 You should have received a copy of the GNU General Public License | |
| 27 along with XEmacs; see the file COPYING. If not, write to | |
| 28 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 29 Boston, MA 02111-1307, USA. */ | |
| 30 | |
| 31 /* Synched up with: Not in GNU Emacs. */ | |
| 32 | |
| 33 /* This module provides the Lisp interface to fonts in X11, including Xft, | |
| 34 but (at least at first) not GTK+ or Qt. | |
| 35 | |
| 36 Sealevel code should be in ../lwlib/lwlib-fonts.c or | |
| 37 ../lwlib/lwlib-colors.c. | |
| 38 */ | |
| 39 | |
| 40 #include <config.h> | |
| 41 #include "lisp.h" | |
| 42 #include "device.h" | |
| 43 #include "device-impl.h" | |
| 44 #include "console-x-impl.h" | |
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45 #include "fontcolor-x.h" |
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46 #include "fontcolor-x-impl.h" |
| 3354 | 47 #include "hash.h" |
| 48 #include "font-mgr.h" | |
| 49 | |
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50 #include "sysfile.h" |
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51 |
| 3354 | 52 /* #### TO DO #### |
| 53 . The "x-xft-*" and "x_xft_*" nomenclature is mostly redundant, especially | |
| 54 if we separate X fonts from Xft fonts, and use fontconfig more generally. | |
| 55 . We should support the most recent Xft first, old Xft libraries later. | |
| 56 . We may (think about it) wish to use fontconfig generally, even if we're | |
| 57 not using Xft. Either way, names that are really from fontconfig should | |
| 58 use the Fc* namespace. | |
| 59 . Mule-ize this file. | |
| 60 . Separate X Font Struct ops from Xft Font ops; give precedence to Xft but | |
| 61 allow fallback to X. | |
| 62 . Push decisions about font choice, defaults, fallbacks to Lisp; if we | |
| 63 really need efficiency, can reimplement in C later. | |
| 64 . Implement symbols interned in this file in the Q* namespace. | |
| 65 . Implement FcMatrix (Lisp vector). | |
| 66 . Implement FcCharSets (Lisp chartable? For implementation hints, see | |
| 67 FcCharSetFirstPage and FcCharSetNextPage). | |
| 68 . Implement FcConfigs. | |
| 69 DONE | |
| 70 . Fontconfig fontnames are encoded in UTF-8. | |
| 71 */ | |
| 72 | |
| 3360 | 73 Lisp_Object Qfont_mgr; |
| 3354 | 74 Lisp_Object Qfc_patternp; |
| 75 /* Lisp_Object Qfc_result_match; */ /* FcResultMatch */ | |
| 76 Lisp_Object Qfc_result_type_mismatch; /* FcResultTypeMismatch */ | |
| 77 Lisp_Object Qfc_result_no_match; /* FcResultNoMatch */ | |
| 78 Lisp_Object Qfc_result_no_id; /* FcResultNoId */ | |
| 79 Lisp_Object Qfc_internal_error; | |
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80 Lisp_Object Qfc_match_pattern; |
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81 Lisp_Object Qfc_match_font; |
| 3354 | 82 Lisp_Object Vxlfd_font_name_regexp; /* #### Really needed? */ |
| 3935 | 83 Fixnum xft_version; |
| 84 Fixnum fc_version; | |
| 3354 | 85 Fixnum debug_xft; /* Set to 1 enables lots of obnoxious messages. |
| 86 Setting it to 2 or 3 enables even more. */ | |
| 3931 | 87 #ifdef FONTCONFIG_EXPOSE_CONFIG |
| 88 Lisp_Object Qfc_configp; | |
| 89 static Lisp_Object Vfc_config_weak_list; | |
| 90 #endif | |
| 3354 | 91 |
| 92 /**************************************************************** | |
| 93 * FcPattern objects * | |
| 94 ****************************************************************/ | |
| 95 | |
| 96 static void | |
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97 finalize_fc_pattern (Lisp_Object obj) |
| 3354 | 98 { |
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99 struct fc_pattern *p = XFC_PATTERN (obj); |
| 3354 | 100 if (p->fcpatPtr) |
| 101 { | |
| 102 FcPatternDestroy (p->fcpatPtr); | |
| 103 p->fcpatPtr = 0; | |
| 104 } | |
| 105 } | |
| 106 | |
| 3906 | 107 /* #### We really need an equal method and a hash method (required if you |
| 108 have an equal method). For the equal method, we can probably use one | |
| 109 or both of | |
| 110 | |
| 111 -- Function: FcBool FcPatternEqual (const FcPattern *pa, const | |
| 112 FcPattern *pb); | |
| 113 Returns whether PA and PB are exactly alike. | |
| 114 | |
| 115 -- Function: FcBool FcPatternEqualSubset (const FcPattern *pa, const | |
| 116 FcPattern *pb, const FcObjectSet *os) | |
| 117 Returns whether PA and PB have exactly the same values for all of | |
| 118 the objects in OS. | |
| 119 | |
| 120 For the hash, we'll have to extract some subset of attributes. | |
| 121 | |
| 122 #### Crap. It's altogether unobvious what we need. x_color_instance | |
| 123 does have a hash method, but fonts are apparently special. I get the | |
| 124 feeling that for this to work properly we're going to need to switch | |
| 125 to fontconfig-based font specifications (although we can allow the | |
| 126 platform syntaxes, the underlying specification object will need to | |
| 127 conform to the fontconfig API, or more precisely the font-mgr API). | |
| 128 | |
| 129 I think the whole `font-truename' interface needs to be dropped. */ | |
| 130 | |
| 3354 | 131 static const struct memory_description fcpattern_description [] = { |
| 132 /* #### nothing here, is this right?? */ | |
| 133 { XD_END } | |
| 134 }; | |
| 135 | |
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136 DEFINE_NODUMP_LISP_OBJECT ("fc-pattern", fc_pattern, |
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137 0, external_object_printer, finalize_fc_pattern, |
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138 0, 0, fcpattern_description, |
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139 struct fc_pattern); |
| 3354 | 140 |
| 141 /* | |
| 142 * Helper Functions | |
| 143 */ | |
| 144 static Lisp_Object make_xlfd_font_regexp (void); | |
| 145 static void string_list_to_fcobjectset (Lisp_Object list, FcObjectSet *os); | |
| 146 | |
| 147 /* | |
| 148 extract the C representation of the Lisp string STR and convert it | |
| 149 to the encoding used by the Fontconfig API for property and font | |
| 150 names. I suppose that Qnative is the right encoding, the manual | |
| 151 doesn't say much about this topic. This functions assumes that STR | |
| 152 is a Lisp string. | |
| 153 */ | |
| 154 #define extract_fcapi_string(str) \ | |
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155 (LISP_STRING_TO_EXTERNAL ((str), Qfc_font_name_encoding)) |
| 3354 | 156 |
| 3906 | 157 #define build_fcapi_string(str) \ |
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158 (build_extstring ((Extbyte *) (str), Qfc_font_name_encoding)) |
| 3906 | 159 |
| 3360 | 160 /* #### This homebrew lashup should be replaced with FcConstants. |
| 161 | |
| 162 fontconfig assumes that objects (property names) are statically allocated, | |
| 3354 | 163 and you will get bizarre results if you pass Lisp string data or strings |
| 164 allocated on the stack as objects. fontconfig _does_ copy values, so we | |
| 165 (I hope) don't have to worry about that member. | |
| 166 | |
| 167 Probably these functions don't get called so often that the memory leak | |
| 168 due to strdup'ing every time we add a property would matter, but XEmacs | |
| 169 _is_ a long-running process. So we hash them. | |
| 170 | |
| 171 I suspect that using symbol names or even keywords does not provide | |
| 172 assurance that the string won't move in memory. So we hash them | |
| 3360 | 173 ourselves; hash.c hashtables do not interpret the value pointers. |
| 174 | |
| 175 This array should be FcChar8**, but GCC 4.x bitches about signedness. */ | |
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176 static const Extbyte *fc_standard_properties[] = |
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177 { |
| 3360 | 178 /* treated specially, ordered first */ |
| 179 "family", "size", | |
| 180 /* remaining are alphabetized by group */ | |
| 181 /* standard properties in fontconfig and Xft v.2 */ | |
| 182 "antialias", "aspect", "autohint", "charset", "dpi", "file", | |
| 3354 | 183 "foundry", "ftface", "globaladvance", "hinting", "index", "lang", |
| 184 "minspace", "outline", "pixelsize", "rasterizer", "rgba", "scalable", | |
| 3360 | 185 "scale", "slant", "spacing", "style", "verticallayout", "weight", |
| 186 /* common in modern fonts */ | |
| 187 "fontformat", "fontversion", | |
| 3354 | 188 /* obsolete after Xft v. 1 */ |
| 189 "charwidth", "charheight", "core", "encoding", "render" | |
| 190 }; | |
| 191 | |
| 192 static struct hash_table *fc_property_name_hash_table; | |
| 193 | |
| 194 /* #### Maybe fc_intern should be exposed to LISP? The idea is that | |
| 195 fc-pattern-add could warn or error if the property isn't interned. */ | |
| 196 | |
| 3469 | 197 static const Extbyte * |
| 3354 | 198 fc_intern (Lisp_Object property) |
| 199 { | |
| 200 const void *dummy; | |
| 3469 | 201 const Extbyte *prop = extract_fcapi_string (property); |
| 3354 | 202 const void *val = gethash (prop, fc_property_name_hash_table, &dummy); |
| 203 | |
| 204 /* extract_fcapi_string returns something alloca'd | |
| 205 so we can just drop the old value of prop on the floor */ | |
| 206 if (val) | |
| 3469 | 207 prop = (const Extbyte *) val; |
| 3354 | 208 else |
| 209 { | |
| 3469 | 210 prop = (const Extbyte *) FcStrCopy ((FcChar8 *) prop); |
| 3354 | 211 puthash (prop, NULL, fc_property_name_hash_table); |
| 212 } | |
| 213 return prop; | |
| 214 } | |
| 215 | |
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216 DEFUN ("fc-pattern-p", Ffc_pattern_p, 1, 1, 0, /* |
| 3354 | 217 Returns t if OBJECT is of type fc-pattern, nil otherwise. |
| 218 */ | |
| 219 (object)) | |
| 220 { | |
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221 return FC_PATTERNP (object) ? Qt : Qnil; |
| 3354 | 222 } |
| 223 | |
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224 DEFUN ("fc-pattern-create", Ffc_pattern_create, 0, 0, 0, /* |
| 3354 | 225 Return a new, empty fc-pattern object. |
| 226 */ | |
| 227 ()) | |
| 228 { | |
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229 fc_pattern *fcpat = XFC_PATTERN (ALLOC_NORMAL_LISP_OBJECT (fc_pattern)); |
| 3354 | 230 |
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231 fcpat->fcpatPtr = FcPatternCreate (); |
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232 return wrap_fc_pattern (fcpat); |
| 3354 | 233 } |
| 234 | |
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235 DEFUN ("fc-name-parse", Ffc_name_parse, 1, 1, 0, /* |
| 3354 | 236 Parse an Fc font name and return its representation as a fc pattern object. |
| 237 */ | |
| 238 (name)) | |
| 239 { | |
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240 fc_pattern *fcpat = XFC_PATTERN (ALLOC_NORMAL_LISP_OBJECT (fc_pattern)); |
| 3354 | 241 |
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242 CHECK_STRING (name); |
| 3354 | 243 |
| 3469 | 244 fcpat->fcpatPtr = FcNameParse ((FcChar8 *) extract_fcapi_string (name)); |
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245 return wrap_fc_pattern (fcpat); |
| 3354 | 246 } |
| 247 | |
| 248 /* #### Ga-a-ack! Xft's similar function is actually a different API. | |
| 249 We provide both. */ | |
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250 DEFUN ("fc-name-unparse", Ffc_name_unparse, 1, 1, 0, /* |
| 3354 | 251 Unparse an fc pattern object to a string. |
| 252 */ | |
| 253 (pattern)) | |
| 254 { | |
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255 FcChar8 *name; |
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256 Lisp_Object result; |
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257 CHECK_FC_PATTERN (pattern); |
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258 name = FcNameUnparse (XFC_PATTERN_PTR (pattern)); |
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259 result = build_fcapi_string (name); |
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260 xfree (name); |
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261 return result; |
| 3354 | 262 } |
| 263 | |
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264 DEFUN ("fc-pattern-duplicate", Ffc_pattern_duplicate, 1, 1, 0, /* |
| 3354 | 265 Make a copy of the fc pattern object PATTERN and return it. |
| 266 */ | |
| 267 (pattern)) | |
| 268 { | |
| 269 struct fc_pattern *copy = NULL; | |
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270 CHECK_FC_PATTERN (pattern); |
| 3354 | 271 |
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272 copy = XFC_PATTERN (ALLOC_NORMAL_LISP_OBJECT (fc_pattern)); |
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273 copy->fcpatPtr = FcPatternDuplicate (XFC_PATTERN_PTR (pattern)); |
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274 return wrap_fc_pattern (copy); |
| 3354 | 275 } |
| 276 | |
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277 DEFUN ("fc-pattern-add", Ffc_pattern_add, 3, 3, 0, /* |
| 3354 | 278 Add attributes to the pattern object PATTERN. PROPERTY is a string naming |
| 279 the attribute to add, VALUE the value for this attribute. | |
| 280 | |
| 281 VALUE may be a string, integer, float, or symbol, in which case the value | |
| 282 will be added as an FcChar8[], int, double, or FcBool respectively. | |
| 283 */ | |
| 284 (pattern, property, value)) | |
| 285 { | |
| 286 Bool res = 0; | |
| 3469 | 287 const Extbyte *obj; |
| 3354 | 288 FcPattern *fcpat; |
| 289 | |
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290 CHECK_FC_PATTERN (pattern); |
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291 CHECK_STRING (property); |
| 3354 | 292 |
| 293 obj = fc_intern (property); | |
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294 fcpat = XFC_PATTERN_PTR (pattern); |
| 3354 | 295 |
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296 if (STRINGP (value)) |
| 3354 | 297 { |
| 298 FcChar8 *str = (FcChar8 *) extract_fcapi_string (value); | |
| 299 res = FcPatternAddString (fcpat, obj, str); | |
| 300 } | |
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301 else if (INTP (value)) |
| 3354 | 302 { |
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303 res = FcPatternAddInteger (fcpat, obj, XINT (value)); |
| 3354 | 304 } |
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305 else if (FLOATP (value)) |
| 3354 | 306 { |
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307 res = FcPatternAddDouble (fcpat, obj, (double) XFLOAT_DATA (value)); |
| 3354 | 308 } |
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309 else if (SYMBOLP (value)) |
| 3354 | 310 { |
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311 res = FcPatternAddBool (fcpat, obj, !NILP (value)); |
| 3354 | 312 } |
| 313 /* else ... maybe we should wta here? */ | |
| 314 | |
| 315 return res ? Qt : Qnil; | |
| 316 } | |
| 317 | |
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318 DEFUN ("fc-pattern-del", Ffc_pattern_del, 2, 2, 0, /* |
| 3354 | 319 Remove attribute PROPERTY from fc pattern object OBJECT. |
| 320 */ | |
| 321 (pattern, property)) | |
| 322 { | |
| 323 Bool res; | |
| 324 | |
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325 CHECK_FC_PATTERN (pattern); |
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326 CHECK_STRING (property); |
| 3354 | 327 |
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328 res = FcPatternDel (XFC_PATTERN_PTR (pattern), extract_fcapi_string (property)); |
| 3354 | 329 return res ? Qt : Qnil; |
| 330 } | |
| 331 | |
| 332 /* Generic interface to FcPatternGet() | |
| 333 * Don't support the losing symbol-for-property interface. | |
| 334 */ | |
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335 DEFUN ("fc-pattern-get", Ffc_pattern_get, 2, 4, 0, /* |
| 3354 | 336 From PATTERN, extract PROPERTY for the ID'th member, of type TYPE. |
| 337 | |
| 338 PATTERN is an Xft (fontconfig) pattern object. | |
| 339 PROPERTY is a string naming an fontconfig font property. | |
| 340 Optional ID is a nonnegative integer indexing the list of values for PROPERTY | |
| 341 stored in PATTERN, defaulting to 0 (the first value). | |
| 342 Optional TYPE is a symbol, one of 'string, 'boolean, 'integer, 'float, | |
| 343 'double, 'matrix, 'charset, or 'void, corresponding to the FcValue types. | |
| 344 ('float is an alias for 'double). | |
| 345 | |
| 346 The Lisp types returned will conform to TYPE: | |
| 347 string string | |
| 348 boolean `t' or `nil' | |
| 349 integer integer | |
| 350 double (float) float | |
| 351 matrix not implemented | |
| 352 charset not implemented | |
| 353 void not implemented | |
| 354 | |
| 355 Symbols with names of the form "fc-result-DESCRIPTION" are returned when | |
| 356 the desired value is not available. These are | |
| 357 | |
| 358 fc-result-type-mismatch the value found has an unexpected type | |
| 359 fc-result-no-match there is no such attribute | |
| 360 fc-result-no-id there is no value for the requested ID | |
| 361 | |
| 362 The types of the following standard properties are predefined by fontconfig. | |
| 363 The symbol 'fc-result-type-mismatch will be returned if the object exists but | |
| 364 TYPE does not match the predefined type. It is best not to specify a type | |
| 365 for predefined properties, as a mistake here ensures error returns on the | |
| 366 correct type. | |
| 367 | |
| 368 Each standard property has a convenience accessor defined in fontconfig.el, | |
| 369 named in the form "fc-pattern-get-PROPERTY". The convenience functions are | |
| 370 preferred to `fc-pattern-get' since a typo in the string naming a property | |
| 371 will result in a silent null return, while a typo in a function name will | |
| 372 usually result in a compiler or runtime \"not fboundp\" error. You may use | |
| 373 `defsubst' to define convenience functions for non-standard properties. | |
| 374 | |
| 375 family String Font family name | |
| 376 style String Font style. Overrides weight and slant | |
| 377 slant Int Italic, oblique or roman | |
| 378 weight Int Light, medium, demibold, bold or black | |
| 379 size Double Point size | |
| 380 aspect Double Stretches glyphs horizontally before hinting | |
| 381 pixelsize Double Pixel size | |
| 382 spacing Int Proportional, monospace or charcell | |
| 383 foundry String Font foundry name | |
| 384 antialias Bool Whether glyphs can be antialiased | |
| 385 hinting Bool Whether the rasterizer should use hinting | |
| 386 verticallayout Bool Use vertical layout | |
| 387 autohint Bool Use autohinter instead of normal hinter | |
| 388 globaladvance Bool Use font global advance data | |
| 389 file String The filename holding the font | |
| 390 index Int The index of the font within the file | |
| 391 ftface FT_Face Use the specified FreeType face object | |
| 392 rasterizer String Which rasterizer is in use | |
| 393 outline Bool Whether the glyphs are outlines | |
| 394 scalable Bool Whether glyphs can be scaled | |
| 395 scale Double Scale factor for point->pixel conversions | |
| 396 dpi Double Target dots per inch | |
| 397 rgba Int unknown, rgb, bgr, vrgb, vbgr, none - subpixel geometry | |
| 398 minspace Bool Eliminate leading from line spacing | |
| 399 charset CharSet Unicode chars encoded by the font | |
| 400 lang String List of RFC-3066-style languages this font supports | |
| 401 | |
| 402 The FT_Face, Matrix, CharSet types are unimplemented, so the corresponding | |
| 403 properties are not accessible from Lisp at this time. If the value of a | |
| 404 property returned has type FT_Face, FcCharSet, or FcMatrix, | |
| 405 `fc-result-type-mismatch' is returned. | |
| 406 | |
| 407 The following properties which were standard in Xft v.1 are obsolete in | |
| 408 Xft v.2: encoding, charwidth, charheight, core, and render. */ | |
| 409 (pattern, property, id, type)) | |
| 410 { | |
| 3469 | 411 Extbyte *fc_property; |
| 3354 | 412 FcResult fc_result; |
| 413 FcValue fc_value; | |
| 414 | |
| 415 /* | |
| 416 process arguments | |
| 417 */ | |
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418 CHECK_FC_PATTERN (pattern); |
| 3354 | 419 |
| 420 #if 0 | |
| 421 /* Don't support the losing symbol-for-property interface. */ | |
| 422 property = SYMBOLP (property) ? symbol_name (XSYMBOL (property)) : property; | |
| 423 #endif | |
| 424 if (STRINGP (property)) | |
| 425 { | |
| 3469 | 426 fc_property = extract_fcapi_string (property); |
| 3354 | 427 } |
| 428 else | |
| 429 { | |
| 430 /* if we allow symbols, this would need to be | |
| 431 list3 (Qlambda, list1 (Qobject), | |
| 432 list3 (Qor, list2 (Qstringp, Qobject), | |
| 433 list2 (Qsymbolp, Qobject))) | |
| 434 or something like that? */ | |
| 435 dead_wrong_type_argument (Qstringp, property); | |
| 436 } | |
| 437 | |
| 438 if (!NILP (id)) CHECK_NATNUM (id); | |
| 439 if (!NILP (type)) CHECK_SYMBOL (type); | |
| 440 | |
| 441 /* get property */ | |
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442 fc_result = FcPatternGet (XFC_PATTERN_PTR (pattern), |
| 3354 | 443 fc_property, |
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444 NILP (id) ? 0 : XINT (id), |
| 3354 | 445 &fc_value); |
| 446 | |
| 447 switch (fc_result) | |
| 448 { | |
| 449 case FcResultMatch: | |
| 450 /* wrap it and return */ | |
| 451 switch (fc_value.type) | |
| 452 { | |
| 453 case FcTypeInteger: | |
| 454 return ((!NILP (type) && !EQ (type, Qinteger)) | |
| 455 ? Qfc_result_type_mismatch : make_int (fc_value.u.i)); | |
| 456 case FcTypeDouble: | |
| 457 return ((!NILP (type) && !EQ (type, intern ("double")) | |
| 458 && !EQ (type, Qfloat)) | |
| 459 ? Qfc_result_type_mismatch : make_float (fc_value.u.d)); | |
| 460 case FcTypeString: | |
| 461 return ((!NILP (type) && !EQ (type, Qstring)) | |
| 462 ? Qfc_result_type_mismatch | |
| 3906 | 463 : build_fcapi_string (fc_value.u.s)); |
| 3354 | 464 case FcTypeBool: |
| 465 return ((!NILP (type) && !EQ (type, Qboolean)) | |
| 466 ? Qfc_result_type_mismatch : fc_value.u.b ? Qt : Qnil); | |
| 467 case FcTypeMatrix: | |
| 468 return Qfc_result_type_mismatch; | |
| 469 /* #### unimplemented | |
| 470 return ((!NILP (type) && !EQ (type, intern ("matrix"))) | |
| 471 ? Qfc_result_type_mismatch : make_int (fc_value.u.m)); | |
| 472 */ | |
| 473 case FcTypeCharSet: | |
| 474 return Qfc_result_type_mismatch; | |
| 475 /* #### unimplemented | |
| 476 return ((!NILP (type) && !EQ (type, intern ("charset"))) | |
| 477 ? Qfc_result_type_mismatch : make_int (fc_value.u.c)); | |
| 478 */ | |
| 479 } | |
| 480 case FcResultTypeMismatch: | |
| 481 return Qfc_result_type_mismatch; | |
| 482 case FcResultNoMatch: | |
| 483 return Qfc_result_no_match; | |
| 484 case FcResultNoId: | |
| 485 return Qfc_result_no_id; | |
| 486 default: | |
| 487 return Qfc_internal_error; | |
| 488 } | |
| 489 } | |
| 490 | |
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491 /* FcConfig handling functions. */ |
| 3354 | 492 |
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493 /* We obviously need to be careful about garbage collecting the current |
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494 FcConfig. I infer from the documentation of FcConfigDestroy that that |
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495 is the only reference maintained by fontconfig. |
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496 So we keep track of our own references on a weak list, and only cons a |
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497 new object if we don't already have a reference to it there. */ |
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498 |
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499 enum DestroyFontsetP { DestroyNo = 0, DestroyYes = 1 }; |
| 3354 | 500 |
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501 static Lisp_Object |
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502 fc_config_create_using (FcConfig * (*create_function) (void)) |
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503 { |
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504 FcConfig *fc = (*create_function) (); |
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505 Lisp_Object configs = XWEAK_LIST_LIST (Vfc_config_weak_list); |
| 3354 | 506 |
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507 /* Linear search: fc_configs are not going to multiply like conses. */ |
| 3360 | 508 { |
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509 LIST_LOOP_2 (cfg, configs) |
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510 if (fc == XFC_CONFIG_PTR (cfg)) |
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511 return cfg; |
| 3360 | 512 } |
| 513 | |
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514 { |
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515 fc_config *fccfg = XFC_CONFIG (ALLOC_NORMAL_LISP_OBJECT (fc_config)); |
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516 fccfg->fccfgPtr = fc; |
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517 configs = Fcons (wrap_fc_config (fccfg), configs); |
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518 XWEAK_LIST_LIST (Vfc_config_weak_list) = configs; |
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519 return wrap_fc_config (fccfg); |
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520 } |
| 3354 | 521 } |
| 522 | |
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523 static Lisp_Object |
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524 fc_strlist_to_lisp_using (FcStrList * (*getter) (FcConfig *), |
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525 Lisp_Object config) |
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526 { |
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527 FcChar8 *thing; |
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528 Lisp_Object value = Qnil; |
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529 FcStrList *thing_list; |
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530 |
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531 CHECK_FC_CONFIG (config); |
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532 thing_list = (*getter) (XFC_CONFIG_PTR (config)); |
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533 /* Yes, we need to do this check -- sheesh, Keith! */ |
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534 if (!thing_list) |
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535 return Qnil; |
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536 while ((thing = FcStrListNext (thing_list))) |
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537 value = Fcons (build_fcapi_string (thing), value); |
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538 FcStrListDone (thing_list); |
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539 return value; |
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540 } |
| 3931 | 541 |
| 3354 | 542 static Lisp_Object |
| 3931 | 543 fontset_to_list (FcFontSet *fontset, enum DestroyFontsetP destroyp) |
| 3354 | 544 { |
| 545 int idx; | |
| 546 Lisp_Object fontlist = Qnil; | |
| 547 fc_pattern *fcpat; | |
| 548 | |
| 549 /* #### improve this error message */ | |
| 550 if (!fontset) | |
| 4860 | 551 invalid_state ("failed to create FcFontSet", Qunbound); |
| 3354 | 552 for (idx = 0; idx < fontset->nfont; ++idx) |
| 553 { | |
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554 fcpat = XFC_PATTERN (ALLOC_NORMAL_LISP_OBJECT (fc_pattern)); |
| 3354 | 555 fcpat->fcpatPtr = FcPatternDuplicate (fontset->fonts[idx]); |
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556 fontlist = Fcons (wrap_fc_pattern (fcpat), fontlist); |
| 3354 | 557 } |
| 3931 | 558 if (destroyp) |
| 559 FcFontSetDestroy (fontset); | |
| 3354 | 560 return fontlist; |
| 561 } | |
| 562 | |
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563 DEFUN ("fc-config-p", Ffc_config_p, 1, 1, 0, /* |
| 3931 | 564 Returns t if OBJECT is of type fc-config, nil otherwise. |
| 565 */ | |
| 566 (object)) | |
| 567 { | |
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568 return FC_CONFIGP (object) ? Qt : Qnil; |
| 3931 | 569 } |
| 570 | |
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571 DEFUN ("fc-config-create", Ffc_config_create, 0, 0, 0, /* |
| 3931 | 572 -- Function: FcConfig *FcConfigCreate (void) |
| 573 Creates an empty configuration. */ | |
| 574 ()) | |
| 575 { | |
| 576 return fc_config_create_using (&FcConfigCreate); | |
| 577 } | |
| 578 | |
| 579 #if 0 | |
| 580 /* I'm sorry, but we just don't do this in Lisp, OK? | |
| 581 Don't even think about implementing this. */ | |
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582 DEFUN ("fc-config-destroy", Ffc_config_destroy, 1, 1, 0, /* |
| 3931 | 583 -- Function: void FcConfigDestroy (FcConfig *config) |
| 584 Destroys a configuration and any data associated with it. Note | |
| 585 that calling this function with the return value from | |
| 586 FcConfigGetCurrent will place the library in an indeterminate | |
| 587 state. */ | |
| 588 (config)) | |
| 589 { | |
| 590 signal_error (Qunimplemented, "No user-servicable parts!", | |
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591 intern ("fc-config-destroy")); |
| 3931 | 592 } |
| 593 #endif | |
| 594 | |
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595 DEFUN ("fc-config-up-to-date", Ffc_config_up_to_date, 1, 1, 0, /* |
| 3931 | 596 -- Function: FcBool FcConfigUptoDate (FcConfig *config) |
| 597 Checks all of the files related to 'config' and returns whether the | |
| 598 in-memory version is in sync with the disk version. */ | |
| 599 (config)) | |
| 600 { | |
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601 CHECK_FC_CONFIG (config); |
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602 return FcConfigUptoDate (XFC_CONFIG_PTR (config)) == FcFalse ? Qnil : Qt; |
| 3931 | 603 } |
| 604 | |
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605 DEFUN ("fc-config-build-fonts", Ffc_config_build_fonts, 1, 1, 0, /* |
| 3931 | 606 -- Function: FcBool FcConfigBuildFonts (FcConfig *config) |
| 607 Builds the set of available fonts for the given configuration. | |
| 608 Note that any changes to the configuration after this call have | |
| 609 indeterminate effects. Returns FcFalse if this operation runs out | |
| 610 of memory. | |
| 611 XEmacs: signal out-of-memory, or return nil on success. */ | |
| 612 (config)) | |
| 613 { | |
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614 CHECK_FC_CONFIG (config); |
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615 if (FcConfigBuildFonts (XFC_CONFIG_PTR (config)) == FcFalse) |
| 3931 | 616 out_of_memory ("FcConfigBuildFonts failed", config); |
| 617 return Qnil; | |
| 618 } | |
| 619 | |
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620 DEFUN ("fc-config-get-config-dirs", Ffc_config_get_config_dirs, 1, 1, 0, /* |
| 3931 | 621 -- Function: FcStrList *FcConfigGetConfigDirs (FcConfig *config) |
| 622 Returns the list of font directories specified in the | |
| 623 configuration files for 'config'. Does not include any | |
| 624 subdirectories. */ | |
| 625 (config)) | |
| 626 { | |
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627 return fc_strlist_to_lisp_using (&FcConfigGetConfigDirs, config); |
| 3931 | 628 } |
| 629 | |
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630 DEFUN ("fc-config-get-font-dirs", Ffc_config_get_font_dirs, 1, 1, 0, /* |
| 3931 | 631 -- Function: FcStrList *FcConfigGetFontDirs (FcConfig *config) |
| 632 Returns the list of font directories in 'config'. This includes the | |
| 633 configured font directories along with any directories below those | |
| 634 in the filesystem. */ | |
| 635 (config)) | |
| 636 { | |
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637 return fc_strlist_to_lisp_using (&FcConfigGetFontDirs, config); |
| 3931 | 638 } |
| 639 | |
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640 DEFUN ("fc-config-get-config-files", Ffc_config_get_config_files, 1, 1, 0, /* |
| 3931 | 641 -- Function: FcStrList *FcConfigGetConfigFiles (FcConfig *config) |
| 642 Returns the list of known configuration files used to generate | |
| 643 'config'. Note that this will not include any configuration done | |
| 644 with FcConfigParse. */ | |
| 645 (config)) | |
| 646 { | |
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647 return fc_strlist_to_lisp_using (&FcConfigGetConfigFiles, config); |
| 3931 | 648 } |
| 649 | |
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650 DEFUN ("fc-config-get-cache", Ffc_config_get_cache, 1, 1, 0, /* |
| 3931 | 651 -- Function: char *FcConfigGetCache (FcConfig *config) |
| 652 Returns the name of the file used to store per-user font | |
| 653 information. */ | |
| 654 (config)) | |
| 655 { | |
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656 CHECK_FC_CONFIG (config); |
| 3931 | 657 /* Surely FcConfigGetCache just casts an FcChar8* to char*. */ |
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658 return build_fcapi_string ((FcChar8 *) FcConfigGetCache (XFC_CONFIG_PTR (config))); |
| 3931 | 659 } |
| 660 | |
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661 DEFUN ("fc-config-get-fonts", Ffc_config_get_fonts, 2, 2, 0, /* |
| 3931 | 662 -- Function: FcFontSet *FcConfigGetFonts (FcConfig *config, FcSetName set) |
| 663 Returns one of the two sets of fonts from the configuration as | |
| 664 specified by 'set'. | |
| 665 `FcSetName' | |
| 666 Specifies one of the two sets of fonts available in a | |
| 667 configuration; FcSetSystem for those fonts specified in the | |
| 668 configuration and FcSetApplication which holds fonts provided by | |
| 669 the application. */ | |
| 670 (config, set)) | |
| 671 { | |
| 672 FcSetName name = FcSetSystem; | |
| 673 FcFontSet *fs = NULL; | |
| 674 | |
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675 CHECK_FC_CONFIG (config); |
| 3931 | 676 CHECK_SYMBOL (set); |
| 677 | |
| 678 if (EQ (set, intern ("fc-set-system"))) | |
| 679 name = FcSetSystem; | |
| 680 else if (EQ (set, intern ("fc-set-application"))) | |
| 681 name = FcSetApplication; | |
| 682 else | |
| 683 wtaerror ("must be in (fc-set-system fc-set-application)", set); | |
| 684 | |
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685 fs = FcConfigGetFonts (XFC_CONFIG_PTR (config), name); |
| 3931 | 686 return fs ? fontset_to_list (fs, DestroyNo) : Qnil; |
| 687 } | |
| 688 | |
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689 DEFUN ("fc-config-set-current", Ffc_config_set_current, 1, 1, 0, /* |
| 3931 | 690 -- Function: FcBool FcConfigSetCurrent (FcConfig *config) |
| 691 Sets the current default configuration to 'config'. Implicitly | |
| 692 calls FcConfigBuildFonts if necessary, returning FcFalse if that | |
| 693 call fails. | |
| 694 XEmacs: signals out-of-memory if FcConfigBuildFonts fails, or args-out-of-range | |
| 695 if the resulting FcConfig has no fonts (which would crash XEmacs if installed). | |
| 696 */ | |
| 697 (config)) | |
| 698 { | |
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699 CHECK_FC_CONFIG (config); |
| 3931 | 700 /* *sigh* "Success" DOES NOT mean you have any fonts available. It is |
| 701 easy to crash fontconfig, and XEmacs with it. Without the following | |
| 702 check, this will do it: | |
| 703 (progn | |
| 704 (fc-config-set-current (fc-config-create)) | |
| 705 (set-face-font 'default "serif-12")) | |
| 706 */ | |
| 707 | |
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708 if (FcConfigBuildFonts (XFC_CONFIG_PTR (config)) == FcFalse) |
| 3931 | 709 out_of_memory ("FcConfigBuildFonts failed", config); |
| 710 /* #### We'd like to avoid this consing, and FcConfigGetFonts sometimes | |
| 711 returns NULL, but it doesn't always. This will do for now .... */ | |
| 712 if (NILP (Ffc_config_get_fonts (config, intern ("fc-set-system"))) | |
| 713 && NILP (Ffc_config_get_fonts (config, intern ("fc-set-application")))) | |
| 714 signal_error (intern ("args-out-of-range"), "no fonts found", config); | |
| 715 /* Should never happen, but I don't trust Keith anymore .... */ | |
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716 if (FcConfigSetCurrent (XFC_CONFIG_PTR (config)) == FcFalse) |
| 3931 | 717 out_of_memory ("FcConfigBuildFonts failed in set", config); |
| 718 return Qnil; | |
| 719 } | |
| 720 | |
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721 DEFUN ("fc-config-get-blanks", Ffc_config_get_blanks, 1, 1, 0, /* |
| 3931 | 722 -- Function: FcBlanks *FcConfigGetBlanks (FcConfig *config) |
| 723 Returns the FcBlanks object associated with the given | |
| 724 configuration, if no blanks were present in the configuration, | |
| 725 this function will return 0. | |
| 726 XEmacs: should convert to a chartable. | |
| 727 #### Unimplemented. */ | |
| 728 (config)) | |
| 729 { | |
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730 CHECK_FC_CONFIG (config); |
| 3931 | 731 signal_error (Qunimplemented, "no method to convert FcBlanks object", |
| 732 intern ("fc-config-get-blanks")); | |
| 733 } | |
| 734 | |
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735 DEFUN ("fc-config-get-rescan-interval", Ffc_config_get_rescan_interval, 1, 1, 0, /* |
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736 -- Function: int FcConfigGetRescanInterval (FcConfig *config) |
| 3931 | 737 Returns the interval between automatic checks of the configuration |
| 738 (in seconds) specified in 'config'. The configuration is checked | |
| 739 during a call to FcFontList when this interval has passed since | |
| 740 the last check. */ | |
| 741 (config)) | |
| 742 { | |
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743 CHECK_FC_CONFIG (config); |
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744 return make_int (FcConfigGetRescanInterval (XFC_CONFIG_PTR (config))); |
| 3931 | 745 } |
| 746 | |
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747 DEFUN ("fc-config-set-rescan-interval", Ffc_config_set_rescan_interval, 2, 2, 0, /* |
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748 -- Function: FcBool FcConfigSetRescanInterval (FcConfig *config, int |
| 3931 | 749 rescanInterval) |
| 750 Sets the rescan interval; returns FcFalse if an error occurred. | |
| 751 XEmacs: signal such error, or return nil on success. */ | |
| 752 (config, rescan_interval)) | |
| 753 { | |
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754 CHECK_FC_CONFIG (config); |
| 3931 | 755 CHECK_INT (rescan_interval); |
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756 if (FcConfigSetRescanInterval (XFC_CONFIG_PTR (config), |
| 3931 | 757 XINT (rescan_interval)) == FcFalse) |
| 758 signal_error (Qio_error, "FcConfigSetRescanInverval barfed", | |
| 759 intern ("fc-config-set-rescan-interval")); | |
| 760 return Qnil; | |
| 761 } | |
| 762 | |
| 763 /* #### This might usefully be made interactive. */ | |
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764 DEFUN ("fc-config-app-font-add-file", Ffc_config_app_font_add_file, 2, 2, 0, /* |
| 3931 | 765 -- Function: FcBool FcConfigAppFontAddFile (FcConfig *config, const |
| 766 char *file) | |
| 767 Adds an application-specific font to the configuration. */ | |
| 768 (config, file)) | |
| 769 { | |
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770 CHECK_FC_CONFIG (config); |
| 3931 | 771 CHECK_STRING (file); |
| 772 if (FcConfigAppFontAddFile | |
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773 (XFC_CONFIG_PTR (config), |
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774 /* #### FIXME! is Qfile_name right? */ |
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775 (FcChar8 *) LISP_STRING_TO_EXTERNAL (file, Qfile_name)) == FcFalse) |
| 3931 | 776 return Qnil; |
| 777 else | |
| 778 return Qt; | |
| 779 } | |
| 780 | |
| 781 /* #### This might usefully be made interactive. */ | |
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782 DEFUN ("fc-config-app-font-add-dir", Ffc_config_app_font_add_dir, 2, 2, 0, /* |
| 3931 | 783 -- Function: FcBool FcConfigAppFontAddDir (FcConfig *config, const |
| 784 char *dir) | |
| 785 Scans the specified directory for fonts, adding each one found to | |
| 786 the application-specific set of fonts. */ | |
| 787 (config, dir)) | |
| 788 { | |
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789 CHECK_FC_CONFIG (config); |
| 3931 | 790 CHECK_STRING (dir); |
| 791 if (FcConfigAppFontAddDir | |
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792 (XFC_CONFIG_PTR (config), |
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793 /* #### FIXME! is Qfile_name right? */ |
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794 (FcChar8 *) LISP_STRING_TO_EXTERNAL (dir, Qfile_name)) == FcFalse) |
| 3931 | 795 return Qnil; |
| 796 else | |
| 797 return Qt; | |
| 798 } | |
| 799 | |
| 800 /* #### This might usefully be made interactive. */ | |
|
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801 DEFUN ("fc-config-app-font-clear", Ffc_config_app_font_clear, 1, 1, 0, /* |
| 3931 | 802 -- Function: void FcConfigAppFontClear (FcConfig *config) |
| 803 Clears the set of application-specific fonts. */ | |
| 804 (config)) | |
| 805 { | |
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806 CHECK_FC_CONFIG (config); |
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807 FcConfigAppFontClear (XFC_CONFIG_PTR (config)); |
| 3931 | 808 return Qnil; |
| 809 } | |
| 810 | |
| 811 /* These functions provide some control over how the default | |
| 812 configuration of the library is initialized. (This configuration is | |
| 813 normally implicitly initialized.) */ | |
| 814 | |
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815 DEFUN ("fc-config-filename", Ffc_config_filename, 1, 1, 0, /* |
| 3931 | 816 -- Function: char *FcConfigFilename (const char *name) |
| 817 Given the specified external entity name, return the associated | |
| 818 filename. This provides applications a way to convert various | |
| 819 configuration file references into filename form. | |
| 820 | |
| 821 A null or empty 'name' indicates that the default configuration | |
| 822 file should be used; which file this references can be overridden | |
| 823 with the FC_CONFIG_FILE environment variable. Next, if the name | |
| 824 starts with '~', it refers to a file in the current users home | |
| 825 directory. Otherwise if the name doesn't start with '/', it | |
| 826 refers to a file in the default configuration directory; the | |
| 827 built-in default directory can be overridden with the | |
| 828 FC_CONFIG_DIR environment variable. */ | |
| 829 (name)) | |
| 830 { | |
| 4932 | 831 const Ascbyte *fcname = ""; |
| 3931 | 832 |
| 833 if (!NILP (name)) | |
| 834 { | |
| 835 CHECK_STRING (name); | |
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836 /* #### FIXME! is Qfile_name right? */ |
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837 LISP_PATHNAME_CONVERT_OUT (name, fcname); |
| 3931 | 838 } |
| 839 return (build_fcapi_string (FcConfigFilename ((FcChar8 *) fcname))); | |
| 840 } | |
| 841 | |
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842 DEFUN ("fc-init-load-config", Ffc_init_load_config, 0, 0, 0, /* |
| 3931 | 843 -- Function: FcConfig *FcInitLoadConfig (void) |
| 844 Loads the default configuration file and returns the resulting | |
| 845 configuration. Does not load any font information. */ | |
| 846 ()) | |
| 847 { | |
| 848 return fc_config_create_using (&FcInitLoadConfig); | |
| 849 } | |
| 850 | |
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851 DEFUN ("fc-init-load-config-and-fonts", Ffc_init_load_config_and_fonts, 0, 0, 0, /* |
| 3931 | 852 -- Function: FcConfig *FcInitLoadConfigAndFonts (void) |
| 853 Loads the default configuration file and builds information about | |
| 854 the available fonts. Returns the resulting configuration. */ | |
| 855 ()) | |
| 856 { | |
| 857 return fc_config_create_using (&FcInitLoadConfigAndFonts); | |
| 858 } | |
| 859 | |
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860 DEFUN ("fc-config-get-current", Ffc_config_get_current, 0, 0, 0, /* |
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861 -- Function: FcConfig *FcConfigGetCurrent (void) |
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862 Returns the current default configuration. */ |
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863 ()) |
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864 { |
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865 return fc_config_create_using (&FcConfigGetCurrent); |
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866 } |
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867 |
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868 /* Pattern manipulation functions. */ |
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869 |
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870 DEFUN ("fc-default-substitute", Ffc_default_substitute, 1, 1, 0, /* |
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871 Adds defaults for certain attributes if not specified in PATTERN. |
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872 FcPattern PATTERN is modified in-place, and nil is returned. |
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873 * Patterns without a specified style or weight are set to Medium |
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874 * Patterns without a specified style or slant are set to Roman |
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875 * Patterns without a specified pixel size are given one computed from any |
|
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|
876 specified point size (default 12), dpi (default 75) and scale (default 1). */ |
|
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|
877 (pattern)) |
|
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878 { |
|
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879 CHECK_FC_PATTERN (pattern); |
|
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880 FcDefaultSubstitute (XFC_PATTERN_PTR (pattern)); |
|
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881 return Qnil; |
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882 } |
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|
883 |
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|
884 /* -- Function: FcBool FcConfigSubstituteWithPat (FcConfig *config, |
|
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885 FcPattern *p, FcPattern *p_pat FcMatchKind kind) |
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886 OMITTED: use optional arguments in `fc-config-substitute'. */ |
|
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887 |
|
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888 DEFUN ("fc-config-substitute", Ffc_config_substitute, 1, 4, 0, /* |
|
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889 Modifies PATTERN according to KIND and TESTPAT using operations from CONFIG. |
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|
890 PATTERN is modified in-place. Returns an undocumented Boolean value. |
|
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891 If optional KIND is `fc-match-pattern', then those tagged as pattern operations |
|
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892 are applied, else if KIND is `fc-match-font', those tagged as font operations |
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893 are applied and TESTPAT is used for <test> elements with target=pattern. KIND |
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894 defaults to `fc-match-font'. |
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|
895 If optional TESTPAT is nil, it is ignored. Otherwise it must be an FcPattern. |
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|
896 Optional CONFIG must be an FcConfig, defaulting to the current one. |
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|
897 |
|
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|
898 Note that this function actually corresponds to FcConfigSubstituteWithPat, and |
|
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|
899 the argument order is changed to take advantage of Lisp optional arguments. */ |
|
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|
900 (pattern, kind, testpat, config)) |
|
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|
901 { |
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|
902 FcMatchKind knd; |
|
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|
903 |
|
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|
904 /* There ought to be a standard idiom for this.... */ |
|
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|
905 if (NILP (kind) |
| 4860 | 906 || EQ (kind, Qfc_match_font)) |
|
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907 knd = FcMatchFont; |
| 4860 | 908 else if (EQ (kind, Qfc_match_pattern)) |
|
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909 knd = FcMatchPattern; |
| 4860 | 910 else |
| 911 wtaerror ("need `fc-match-pattern' or `fc-match-font'", kind); | |
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|
912 |
|
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|
913 /* Typecheck arguments */ |
|
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|
914 CHECK_FC_PATTERN (pattern); |
|
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|
915 if (!NILP (testpat)) CHECK_FC_PATTERN (testpat); |
|
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|
916 if (!NILP (config)) CHECK_FC_CONFIG (config); |
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|
917 |
|
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918 return (FcConfigSubstituteWithPat |
|
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|
919 (NILP (config) ? FcConfigGetCurrent () : XFC_CONFIG_PTR (config), |
|
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920 XFC_PATTERN_PTR (pattern), |
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|
921 NILP (testpat) ? NULL : XFC_PATTERN_PTR (testpat), |
|
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|
922 knd) == FcTrue) |
|
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|
923 ? Qt : Qnil; |
|
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|
924 } |
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|
925 |
|
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|
926 /* Pattern matching functions. */ |
|
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|
927 |
|
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|
928 /* The following functions return fonts that match a certain pattern. |
|
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|
929 `FcFontRenderPrepare' and `FcFontMatch' always return a single best |
|
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Implement more of the fontconfig API.
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|
930 match. `FcFontList' returns the list of fonts that match a given |
|
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|
931 pattern on a certain set of properties. `FcFontSort' returns the |
|
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Implement more of the fontconfig API.
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|
932 entire list of fonts, sorted in order of match quality, possibly |
|
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Implement more of the fontconfig API.
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|
933 filtering out fonts that do not provide additional characters beyond |
|
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Implement more of the fontconfig API.
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|
934 those provided by preferred fonts. */ |
|
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|
935 |
|
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|
936 DEFUN ("fc-font-render-prepare", Ffc_font_render_prepare, 2, 3, 0, /* |
|
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|
937 Return a new pattern blending PATTERN and FONT. |
|
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|
938 Optional CONFIG is an FcConfig, defaulting to the current one. |
|
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|
939 The returned pattern consists of elements of FONT not appearing in PATTERN, |
|
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|
940 elements of PATTERN not appearing in FONT, and the best matching value from |
|
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|
941 PATTERN for elements appearing in both. The result is passed to |
|
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|
942 FcConfigSubstitute with 'kind' FcMatchFont and then returned. */ |
|
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|
943 (pattern, font, config)) |
|
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|
944 { |
|
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|
945 if (NILP (config)) { |
|
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|
946 config = Ffc_config_get_current (); |
|
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|
947 } |
|
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|
948 CHECK_FC_PATTERN (pattern); |
|
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|
949 CHECK_FC_PATTERN (font); |
|
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|
950 CHECK_FC_CONFIG (config); |
|
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|
951 |
|
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|
952 /* I don't think this can fail? */ |
|
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|
953 return wrap_fc_pattern (FcFontRenderPrepare (XFC_CONFIG_PTR (config), |
|
b65692aa90d8
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|
954 XFC_PATTERN_PTR (font), |
|
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|
955 XFC_PATTERN_PTR (pattern))); |
|
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|
956 } |
|
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|
957 |
|
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|
958 DEFUN ("fc-font-match", Ffc_font_match, 2, 3, 0, /* |
|
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|
959 Return the font on DEVICE that most closely matches PATTERN. |
|
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|
960 |
|
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|
961 DEVICE is an X11 device. |
|
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|
962 PATTERN is a fontconfig pattern object. |
|
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|
963 Optional CONFIG is an FcConfig, defaulting to the current one. |
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|
964 Returns a fontconfig pattern object representing the closest match to the |
|
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|
965 given pattern, or an error code. Possible error codes are |
|
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|
966 `fc-result-no-match' and `fc-result-no-id'. |
|
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|
967 PATTERN is massaged with FcConfigSubstitute and FcDefaultSubstitute before |
|
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|
968 being processed by FcFontMatch. */ |
|
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|
969 (device, pattern, config)) |
|
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|
970 { |
|
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|
971 FcResult res; |
|
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|
972 struct fc_pattern *res_fcpat; |
|
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|
973 FcPattern *p; |
|
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|
974 FcConfig *fcc; |
|
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|
975 |
|
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|
976 CHECK_FC_PATTERN (pattern); |
|
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|
977 if (NILP (device)) |
|
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|
978 return Qnil; |
|
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|
979 CHECK_X_DEVICE (device); |
|
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|
980 if (!DEVICE_LIVE_P (XDEVICE (device))) |
|
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|
981 return Qnil; |
|
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|
982 if (!NILP (config)) |
|
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|
983 CHECK_FC_CONFIG (config); |
|
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|
984 |
|
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|
985 res_fcpat = XFC_PATTERN (ALLOC_NORMAL_LISP_OBJECT (fc_pattern)); |
|
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|
986 p = XFC_PATTERN_PTR (pattern); |
|
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|
987 fcc = NILP (config) ? FcConfigGetCurrent () : XFC_CONFIG_PTR (config); |
|
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|
988 |
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989 FcConfigSubstitute (fcc, p, FcMatchPattern); |
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990 FcDefaultSubstitute (p); |
|
4809
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991 res = FcResultMatch; |
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992 res_fcpat->fcpatPtr = FcFontMatch (fcc, p, &res); |
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993 |
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994 if (res_fcpat->fcpatPtr == NULL) |
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995 switch (res) |
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996 { |
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997 case FcResultNoMatch: |
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998 return Qfc_result_no_match; |
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999 case FcResultNoId: |
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1000 return Qfc_result_no_id; |
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1001 default: |
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1002 return Qfc_internal_error; |
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1003 } |
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1004 else |
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1005 return wrap_fc_pattern (res_fcpat); |
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1006 } |
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1007 |
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1008 /* #### fix this name to correspond to Ben's new nomenclature */ |
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1009 DEFUN ("fc-list-fonts-pattern-objects", Ffc_list_fonts_pattern_objects, |
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1010 3, 3, 0, /* |
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1011 Return a list of fonts on DEVICE that match PATTERN for PROPERTIES. |
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1012 Each font is represented by a fontconfig pattern object. |
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1013 |
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1014 DEVICE is an X11 device. |
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1015 PATTERN is a fontconfig pattern to be matched. |
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1016 PROPERTIES is a list of property names (strings) that should match. |
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1017 |
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1018 #### DEVICE is unused, ignored, and may be removed if it's not needed to |
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1019 match other font-listing APIs. */ |
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1020 (UNUSED (device), pattern, properties)) |
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1021 { |
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1022 FcObjectSet *os; |
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1023 FcFontSet *fontset; |
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1024 |
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1025 CHECK_FC_PATTERN (pattern); |
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1026 CHECK_LIST (properties); |
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1027 |
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1028 os = FcObjectSetCreate (); |
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1029 string_list_to_fcobjectset (properties, os); |
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1030 /* #### why don't we need to do the "usual substitutions"? */ |
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1031 fontset = FcFontList (NULL, XFC_PATTERN_PTR (pattern), os); |
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1032 FcObjectSetDestroy (os); |
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1033 |
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1034 return fontset_to_list (fontset, DestroyYes); |
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1035 |
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1036 } |
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1037 |
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1038 /* #### maybe this can/should be folded into fc-list-fonts-pattern-objects? */ |
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1039 DEFUN ("fc-font-sort", Ffc_font_sort, 2, 4, 0, /* |
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1040 Return a list of all fonts sorted by proximity to PATTERN. |
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1041 Each font is represented by a fontconfig pattern object. |
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1042 |
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1043 DEVICE is an X11 device. |
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1044 PATTERN is a fontconfig pattern to be matched. |
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1045 Optional argument TRIM, if non-nil, means to trim trailing fonts that do not |
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1046 contribute new characters to the union repertoire. |
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1047 |
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1048 #### Optional argument NOSUB, if non-nil, suppresses some of the usual |
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1049 property substitutions. DON'T USE THIS in production code, it is intended |
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1050 for exploring behavior of fontconfig and will be removed when this code is |
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1051 stable. |
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1052 |
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1053 #### DEVICE is unused, ignored, and may be removed if it's not needed to |
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1054 match other font-listing APIs. */ |
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1055 (UNUSED (device), pattern, trim, nosub)) |
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1056 { |
|
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1057 CHECK_FC_PATTERN (pattern); |
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|
1058 |
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1059 { |
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1060 FcConfig *fcc = FcConfigGetCurrent(); |
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1061 FcFontSet *fontset; |
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1062 FcPattern *p = XFC_PATTERN_PTR (pattern); |
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1063 FcResult fcresult; |
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1064 |
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1065 if (NILP (nosub)) /* #### temporary debug hack */ |
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1066 FcDefaultSubstitute (p); |
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1067 FcConfigSubstitute (fcc, p, FcMatchPattern); |
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1068 fontset = FcFontSort (fcc, p, !NILP (trim), NULL, &fcresult); |
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1069 |
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1070 return fontset_to_list (fontset, DestroyYes); |
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1071 } |
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1072 } |
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1073 |
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1074 #ifdef FONTCONFIG_EXPOSE_CONFIG |
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1075 |
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1076 /* Configuration routines --- for debugging |
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1077 Don't depend on these routines being available in the future! |
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1078 |
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1079 3.2.10 Initialization |
|
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1080 --------------------- |
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1081 |
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1082 An FcConfig object holds the internal representation of a configuration. |
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1083 There is a default configuration which applications may use by passing |
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1084 0 to any function using the data within an FcConfig. |
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1085 */ |
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1086 |
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1087 static void |
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1088 finalize_fc_config (Lisp_Object obj) |
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1089 { |
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1090 struct fc_config *p = XFC_CONFIG (obj); |
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1091 if (p->fccfgPtr && p->fccfgPtr != FcConfigGetCurrent()) |
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1092 { |
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1093 /* If we get here, all of *our* references are garbage (see comment on |
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1094 fc_config_create_using() for why), and the only reference that |
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1095 fontconfig keeps is the current FcConfig. */ |
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1096 FcConfigDestroy (p->fccfgPtr); |
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1097 } |
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1098 p->fccfgPtr = 0; |
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1099 } |
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1100 |
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1101 static const struct memory_description fcconfig_description [] = { |
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1102 /* #### nothing here, is this right?? */ |
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1103 { XD_END } |
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1104 }; |
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1105 |
|
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1106 DEFINE_NODUMP_LISP_OBJECT ("fc-config", fc_config, |
|
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1107 0, external_object_printer, finalize_fc_config, |
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1108 0, 0, fcconfig_description, |
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1109 struct fc_config); |
|
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1110 |
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1111 DEFUN ("fc-init", Ffc_init, 0, 0, 0, /* |
| 3931 | 1112 -- Function: FcBool FcInit (void) |
| 1113 Loads the default configuration file and the fonts referenced | |
| 1114 therein and sets the default configuration to that result. | |
| 1115 Returns whether this process succeeded or not. If the default | |
| 1116 configuration has already been loaded, this routine does nothing | |
| 1117 and returns FcTrue. */ | |
| 1118 ()) | |
| 1119 { | |
| 1120 return (FcInit () == FcTrue) ? Qt : Qnil; | |
| 1121 } | |
| 1122 | |
|
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1123 DEFUN ("fc-get-version", Ffc_get_version, 0, 0, 0, /* |
| 3931 | 1124 -- Function: int FcGetVersion (void) |
| 1125 Returns the version number of the library. | |
| 3935 | 1126 XEmacs: No, this should NOT return a pretty string. |
| 3931 | 1127 (let ((i (fc-get-version))) |
| 1128 (format "%d.%d.%d" (/ i 10000) (mod (/ i 100) 100) (mod i 100))) | |
| 3935 | 1129 gives the usual x.y.z format. This is the version of the .so. It can be |
| 1130 checked against `fc-version', which is the version of fontconfig.h. | |
| 1131 It's probably not a disaster if `(> (fc-get-version) fc-version)'. */ | |
| 3931 | 1132 ()) |
| 1133 { | |
| 1134 return make_int (FcGetVersion ()); | |
| 1135 } | |
| 1136 | |
|
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1137 DEFUN ("fc-init-reinitialize", Ffc_init_reinitialize, 0, 0, 0, /* |
| 3931 | 1138 -- Function: FcBool FcInitReinitialize (void) |
| 1139 Forces the default configuration file to be reloaded and resets | |
| 1140 the default configuration. */ | |
| 1141 ()) | |
| 1142 { | |
| 1143 return (FcInitReinitialize () == FcTrue) ? Qt : Qnil; | |
| 1144 } | |
| 1145 | |
|
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1146 DEFUN ("fc-init-bring-up-to-date", Ffc_init_bring_up_to_date, 0, 0, 0, /* |
| 3931 | 1147 -- Function: FcBool FcInitBringUptoDate (void) |
| 1148 Checks the rescan interval in the default configuration, checking | |
| 1149 the configuration if the interval has passed and reloading the | |
| 1150 configuration when any changes are detected. */ | |
| 1151 ()) | |
| 1152 { | |
| 1153 return (FcInitBringUptoDate () == FcTrue) ? Qt : Qnil; | |
| 1154 } | |
| 1155 | |
| 1156 #endif /* FONTCONFIG_EXPOSE_CONFIG */ | |
| 1157 | |
|
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1158 DEFUN ("xlfd-font-name-p", Fxlfd_font_name_p, 1, 1, 0, /* |
| 3354 | 1159 Check whether the string FONTNAME is a XLFD font name. */ |
| 1160 (fontname)) | |
| 1161 { | |
|
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1162 CHECK_STRING (fontname); |
| 3354 | 1163 /* #### should bind `case-fold-search' here? */ |
|
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1164 return Fstring_match (Vxlfd_font_name_regexp, fontname, Qnil, Qnil); |
| 3354 | 1165 } |
| 1166 | |
| 1167 /* FcPatternPrint: there is no point in having wrappers fc-pattern-print, | |
| 1168 Ffc_pattern_print since this function prints to stdout. */ | |
| 1169 | |
| 1170 /* Initialization of font-mgr */ | |
| 1171 | |
| 1172 #define XE_XLFD_SEPARATOR "-" | |
| 1173 /* XLFD specifies ISO 8859-1 encoding, but we can't handle non-ASCII | |
| 1174 in Mule when this function is called. So use HPC. */ | |
| 1175 #if 0 | |
| 1176 #define XE_XLFD_PREFIX "\\(\\+[\040-\176\240-\377]*\\)?-" | |
| 1177 #define XE_XLFD_OPT_TEXT "\\([\040-\044\046-\176\240-\377]*\\)" | |
| 1178 #define XE_XLFD_TEXT "\\([\040-\044\046-\176\240-\377]+\\)" | |
| 1179 #else | |
| 1180 #define XE_XLFD_PREFIX "\\(\\+[\040-\176]*\\)?-" | |
| 1181 #define XE_XLFD_OPT_TEXT "\\([^-]*\\)" | |
| 1182 #define XE_XLFD_TEXT "\\([^-]+\\)" | |
| 1183 #endif | |
| 1184 | |
| 1185 #define XE_XLFD_SLANT "\\([0-9ior?*][iot]?\\)" | |
| 1186 #define XE_XLFD_SPACING "\\([cmp?*]\\)" | |
| 1187 /* Hyphen as minus conflicts with use as separator. */ | |
| 1188 #define XE_XLFD_OPT_NEGATE "~?" | |
| 1189 #define XE_XLFD_NUMBER "\\([0-9?*]+\\)" | |
| 1190 #define XE_XLFD_PSIZE "\\([0-9?*]+\\|\\[[ 0-9+~.e?*]+\\]\\)" | |
| 1191 | |
| 1192 /* Call this only from the init code | |
| 1193 #### This is really horrible, let's get rid of it, please. */ | |
| 1194 static Lisp_Object | |
| 1195 make_xlfd_font_regexp (void) | |
| 1196 { | |
| 1197 struct gcpro gcpro1; | |
| 1198 unsigned i; | |
| 1199 Lisp_Object reg = Qnil; | |
| 1200 const Extbyte *re[] = /* #### This could just be catenated by | |
|
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1201 cpp and passed to build_extstring. */ |
| 3354 | 1202 { |
| 1203 /* Regular expression matching XLFDs as defined by XLFD v. 1.5. | |
| 1204 Matches must be case-insensitive. | |
| 1205 PSIZE is a pixel or point size, which may be a "matrix". The | |
| 1206 syntax of a matrix is not checked, just some lexical properties. | |
| 1207 AFAICT none of the TEXT fields except adstyle is optional. | |
| 1208 | |
| 1209 NB. It should not be a problem if this matches "too much", since | |
| 1210 an "old" server will simply not be able to find a matching font. */ | |
| 1211 "\\`", | |
| 1212 XE_XLFD_PREFIX, /* prefix */ | |
| 1213 XE_XLFD_TEXT, /* foundry */ | |
| 1214 XE_XLFD_SEPARATOR, | |
| 1215 XE_XLFD_TEXT, /* family */ | |
| 1216 XE_XLFD_SEPARATOR, | |
| 1217 XE_XLFD_TEXT, /* weight */ | |
| 1218 XE_XLFD_SEPARATOR, | |
| 1219 XE_XLFD_SLANT, /* slant */ | |
| 1220 XE_XLFD_SEPARATOR, | |
| 1221 XE_XLFD_TEXT, /* swidth */ | |
| 1222 XE_XLFD_SEPARATOR, | |
| 1223 XE_XLFD_OPT_TEXT, /* adstyle */ | |
| 1224 XE_XLFD_SEPARATOR, | |
| 1225 XE_XLFD_PSIZE, /* pixelsize */ | |
| 1226 XE_XLFD_SEPARATOR, | |
| 1227 XE_XLFD_PSIZE, /* pointsize */ | |
| 1228 XE_XLFD_SEPARATOR, | |
| 1229 XE_XLFD_NUMBER, /* resx */ | |
| 1230 XE_XLFD_SEPARATOR, | |
| 1231 XE_XLFD_NUMBER, /* resy */ | |
| 1232 XE_XLFD_SEPARATOR, | |
| 1233 XE_XLFD_SPACING, /* spacing */ | |
| 1234 XE_XLFD_SEPARATOR, | |
| 1235 XE_XLFD_OPT_NEGATE, /* avgwidth */ | |
| 1236 XE_XLFD_NUMBER, | |
| 1237 XE_XLFD_SEPARATOR, | |
| 1238 XE_XLFD_TEXT, /* registry */ | |
| 1239 XE_XLFD_SEPARATOR, | |
| 1240 XE_XLFD_TEXT, /* encoding */ | |
| 1241 "\\'" | |
| 1242 }; | |
| 1243 | |
| 1244 GCPRO1 (reg); | |
|
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1245 for (i = 0; i < sizeof (re)/sizeof (Extbyte *); i++) |
| 3354 | 1246 { |
| 1247 /* #### Currently this is Host Portable Coding, not ISO 8859-1. */ | |
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1248 reg = concat2 (reg, build_extstring (re[i], Qx_font_name_encoding)); |
| 3354 | 1249 } |
| 1250 | |
| 1251 RETURN_UNGCPRO (reg); | |
| 1252 } | |
| 1253 #undef XE_XLFD_SEPARATOR | |
| 1254 #undef XE_XLFD_PREFIX | |
| 1255 #undef XE_XLFD_OPT_TEXT | |
| 1256 #undef XE_XLFD_TEXT | |
| 1257 #undef XE_XLFD_OPT_SLANT | |
| 1258 #undef XE_XLFD_OPT_SPACING | |
| 1259 #undef XE_XLFD_OPT_NEGATE | |
| 1260 #undef XE_XLFD_NUMBER | |
| 1261 #undef XE_XLFD_PSIZE | |
| 1262 | |
| 1263 #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ | |
| 1264 ? ((unsigned long) (x)) : ((unsigned long) (y))) | |
| 1265 | |
| 1266 static void | |
| 1267 string_list_to_fcobjectset (Lisp_Object list, FcObjectSet *os) | |
| 1268 { | |
| 1269 EXTERNAL_LIST_LOOP_2 (elt, list) | |
| 1270 { | |
| 3469 | 1271 const Extbyte *s; |
| 3354 | 1272 |
| 1273 CHECK_STRING (elt); | |
| 1274 s = fc_intern (elt); | |
| 1275 FcObjectSetAdd (os, s); | |
| 1276 } | |
| 1277 } | |
| 1278 | |
| 1279 void | |
|
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1280 syms_of_font_mgr (void) |
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1281 { |
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1282 INIT_LISP_OBJECT (fc_pattern); |
| 3354 | 1283 |
|
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1284 DEFSYMBOL_MULTIWORD_PREDICATE (Qfc_patternp); |
| 3354 | 1285 |
|
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1286 DEFSYMBOL (Qfc_result_type_mismatch); |
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1287 DEFSYMBOL (Qfc_result_no_match); |
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1288 DEFSYMBOL (Qfc_result_no_id); |
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1289 DEFSYMBOL (Qfc_internal_error); |
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1290 DEFSYMBOL (Qfc_match_pattern); |
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1291 DEFSYMBOL (Qfc_match_font); |
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1292 DEFSYMBOL (Qfont_mgr); |
| 3354 | 1293 |
|
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1294 DEFSUBR (Ffc_pattern_p); |
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1295 DEFSUBR (Ffc_pattern_create); |
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1296 DEFSUBR (Ffc_name_parse); |
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1297 DEFSUBR (Ffc_name_unparse); |
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1298 DEFSUBR (Ffc_pattern_duplicate); |
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1299 DEFSUBR (Ffc_pattern_add); |
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1300 DEFSUBR (Ffc_pattern_del); |
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1301 DEFSUBR (Ffc_pattern_get); |
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1302 DEFSUBR (Ffc_list_fonts_pattern_objects); |
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1303 DEFSUBR (Ffc_font_sort); |
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1304 DEFSUBR (Ffc_font_match); |
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1305 DEFSUBR (Ffc_default_substitute); |
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1306 DEFSUBR (Ffc_config_substitute); |
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1307 DEFSUBR (Ffc_font_render_prepare); |
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1308 DEFSUBR (Fxlfd_font_name_p); |
| 3931 | 1309 |
| 1310 #ifdef FONTCONFIG_EXPOSE_CONFIG | |
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1311 INIT_LISP_OBJECT (fc_config); |
| 3931 | 1312 |
|
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1313 DEFSYMBOL_MULTIWORD_PREDICATE (Qfc_configp); |
| 3931 | 1314 |
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1315 DEFSUBR (Ffc_config_p); |
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1316 DEFSUBR (Ffc_config_create); |
| 3931 | 1317 #if 0 |
|
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1318 DEFSUBR (Ffc_config_destroy); |
| 3931 | 1319 #endif |
|
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1320 DEFSUBR (Ffc_config_set_current); |
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1321 DEFSUBR (Ffc_config_get_current); |
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1322 DEFSUBR (Ffc_config_up_to_date); |
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1323 DEFSUBR (Ffc_config_build_fonts); |
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1324 DEFSUBR (Ffc_config_get_config_dirs); |
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1325 DEFSUBR (Ffc_config_get_font_dirs); |
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1326 DEFSUBR (Ffc_config_get_config_files); |
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1327 DEFSUBR (Ffc_config_get_cache); |
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1328 DEFSUBR (Ffc_config_get_fonts); |
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1329 DEFSUBR (Ffc_config_get_blanks); |
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1330 DEFSUBR (Ffc_config_get_rescan_interval); |
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1331 DEFSUBR (Ffc_config_set_rescan_interval); |
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1332 DEFSUBR (Ffc_config_app_font_add_file); |
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1333 DEFSUBR (Ffc_config_app_font_add_dir); |
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1334 DEFSUBR (Ffc_config_app_font_clear); |
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1335 DEFSUBR (Ffc_config_filename); |
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1336 DEFSUBR (Ffc_init_load_config); |
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1337 DEFSUBR (Ffc_init_load_config_and_fonts); |
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1338 DEFSUBR (Ffc_init); |
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1339 DEFSUBR (Ffc_get_version); |
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1340 DEFSUBR (Ffc_init_reinitialize); |
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1341 DEFSUBR (Ffc_init_bring_up_to_date); |
| 3931 | 1342 #endif /* FONTCONFIG_EXPOSE_CONFIG */ |
| 3354 | 1343 } |
| 1344 | |
| 1345 void | |
| 1346 vars_of_font_mgr (void) | |
| 1347 { | |
| 3935 | 1348 /* #### The next two DEFVARs belong somewhere else. */ |
| 3354 | 1349 |
| 1350 /* #### I know, but the right fix is use the generic debug facility. */ | |
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1351 DEFVAR_INT ("debug-xft", &debug_xft /* |
| 3354 | 1352 Level of debugging messages to issue to stderr for Xft. |
| 1353 A nonnegative integer. Set to 0 to suppress all warnings. | |
| 1354 Default is 1 to ensure a minimum of debugging output at initialization. | |
| 1355 Higher levels give even more information. | |
| 1356 */ ); | |
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1357 debug_xft = 0; |
| 3354 | 1358 |
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1359 DEFVAR_CONST_INT ("xft-version", &xft_version /* |
| 3354 | 1360 The major version number of the Xft library being used. |
| 1361 */ ); | |
| 3935 | 1362 xft_version = XFT_VERSION; |
| 1363 | |
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1364 DEFVAR_CONST_INT ("fc-version", &fc_version /* |
| 3935 | 1365 The version number of fontconfig.h. It can be checked against |
| 1366 `(fc-get-version)', which is the version of the .so. | |
| 1367 It's probably not a disaster if `(> (fc-get-version) fc-version)'. | |
| 1368 */ ); | |
| 1369 fc_version = FC_VERSION; | |
| 3354 | 1370 |
| 3360 | 1371 Fprovide (intern ("font-mgr")); |
| 3354 | 1372 } |
| 1373 | |
| 1374 void | |
| 1375 complex_vars_of_font_mgr (void) | |
| 1376 { | |
| 3931 | 1377 #ifdef FONTCONFIG_EXPOSE_CONFIG |
| 1378 Vfc_config_weak_list = make_weak_list (WEAK_LIST_SIMPLE); | |
| 1379 staticpro (&Vfc_config_weak_list); | |
| 1380 #endif | |
| 1381 | |
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1382 DEFVAR_LISP ("xft-xlfd-font-regexp", &Vxlfd_font_name_regexp /* |
| 3354 | 1383 The regular expression used to match XLFD font names. */ |
| 1384 ); | |
| 1385 Vxlfd_font_name_regexp = make_xlfd_font_regexp(); | |
| 1386 } | |
| 1387 | |
| 1388 void | |
| 1389 reinit_vars_of_font_mgr (void) | |
| 1390 { | |
| 1391 int i, size = (int) countof (fc_standard_properties); | |
| 1392 | |
| 1393 FcInit (); | |
| 1394 | |
| 1395 fc_property_name_hash_table = make_string_hash_table (size); | |
| 1396 for (i = 0; i < size; ++i) | |
| 1397 puthash (fc_standard_properties[i], NULL, fc_property_name_hash_table); | |
| 1398 } | |
| 1399 |