1 /* 2 * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.font; 27 28 import java.awt.Font; 29 import java.awt.FontFormatException; 30 import java.awt.GraphicsEnvironment; 31 import java.awt.geom.Point2D; 32 import java.io.FileNotFoundException; 33 import java.io.IOException; 34 import java.io.RandomAccessFile; 35 import java.io.UnsupportedEncodingException; 36 import java.nio.ByteBuffer; 37 import java.nio.CharBuffer; 38 import java.nio.IntBuffer; 39 import java.nio.ShortBuffer; 40 import java.nio.channels.ClosedChannelException; 41 import java.nio.channels.FileChannel; 42 import java.util.HashMap; 43 import java.util.HashSet; 44 import java.util.Map; 45 import java.util.Locale; 46 import sun.java2d.Disposer; 47 import sun.java2d.DisposerRecord; 48 49 /** 50 * TrueTypeFont is not called SFntFont because it is not expected 51 * to handle all types that may be housed in a such a font file. 52 * If additional types are supported later, it may make sense to 53 * create an SFnt superclass. Eg to handle sfnt-housed postscript fonts. 54 * OpenType fonts are handled by this class, and possibly should be 55 * represented by a subclass. 56 * An instance stores some information from the font file to faciliate 57 * faster access. File size, the table directory and the names of the font 58 * are the most important of these. It amounts to approx 400 bytes 59 * for a typical font. Systems with mutiple locales sometimes have up to 400 60 * font files, and an app which loads all font files would need around 61 * 160Kbytes. So storing any more info than this would be expensive. 62 */ 63 public class TrueTypeFont extends FileFont { 64 65 /* -- Tags for required TrueType tables */ 66 public static final int cmapTag = 0x636D6170; // 'cmap' 67 public static final int glyfTag = 0x676C7966; // 'glyf' 68 public static final int headTag = 0x68656164; // 'head' 69 public static final int hheaTag = 0x68686561; // 'hhea' 70 public static final int hmtxTag = 0x686D7478; // 'hmtx' 71 public static final int locaTag = 0x6C6F6361; // 'loca' 72 public static final int maxpTag = 0x6D617870; // 'maxp' 73 public static final int nameTag = 0x6E616D65; // 'name' 74 public static final int postTag = 0x706F7374; // 'post' 75 public static final int os_2Tag = 0x4F532F32; // 'OS/2' 76 77 /* -- Tags for opentype related tables */ 78 public static final int GDEFTag = 0x47444546; // 'GDEF' 79 public static final int GPOSTag = 0x47504F53; // 'GPOS' 80 public static final int GSUBTag = 0x47535542; // 'GSUB' 81 public static final int mortTag = 0x6D6F7274; // 'mort' 82 83 /* -- Tags for non-standard tables */ 84 public static final int fdscTag = 0x66647363; // 'fdsc' - gxFont descriptor 85 public static final int fvarTag = 0x66766172; // 'fvar' - gxFont variations 86 public static final int featTag = 0x66656174; // 'feat' - layout features 87 public static final int EBLCTag = 0x45424C43; // 'EBLC' - embedded bitmaps 88 public static final int gaspTag = 0x67617370; // 'gasp' - hint/smooth sizes 89 90 /* -- Other tags */ 91 public static final int ttcfTag = 0x74746366; // 'ttcf' - TTC file 92 public static final int v1ttTag = 0x00010000; // 'v1tt' - Version 1 TT font 93 public static final int trueTag = 0x74727565; // 'true' - Version 2 TT font 94 public static final int ottoTag = 0x4f54544f; // 'otto' - OpenType font 95 96 /* -- ID's used in the 'name' table */ 97 public static final int MS_PLATFORM_ID = 3; 98 /* MS locale id for US English is the "default" */ 99 public static final short ENGLISH_LOCALE_ID = 0x0409; // 1033 decimal 100 public static final int FAMILY_NAME_ID = 1; 101 // public static final int STYLE_WEIGHT_ID = 2; // currently unused. 102 public static final int FULL_NAME_ID = 4; 103 public static final int POSTSCRIPT_NAME_ID = 6; 104 105 private static final short US_LCID = 0x0409; // US English - default 106 107 private static Map<String, Short> lcidMap; 108 109 static class DirectoryEntry { 110 int tag; 111 int offset; 112 int length; 113 } 114 115 /* There is a pool which limits the number of fd's that are in 116 * use. Normally fd's are closed as they are replaced in the pool. 117 * But if an instance of this class becomes unreferenced, then there 118 * needs to be a way to close the fd. A finalize() method could do this, 119 * but using the Disposer class will ensure its called in a more timely 120 * manner. This is not something which should be relied upon to free 121 * fd's - its a safeguard. 122 */ 123 private static class TTDisposerRecord implements DisposerRecord { 124 125 FileChannel channel = null; 126 127 public synchronized void dispose() { 128 try { 129 if (channel != null) { 130 channel.close(); 131 } 132 } catch (IOException e) { 133 } finally { 134 channel = null; 135 } 136 } 137 } 138 139 TTDisposerRecord disposerRecord = new TTDisposerRecord(); 140 141 /* > 0 only if this font is a part of a collection */ 142 int fontIndex = 0; 143 144 /* Number of fonts in this collection. ==1 if not a collection */ 145 int directoryCount = 1; 146 147 /* offset in file of table directory for this font */ 148 int directoryOffset; // 12 if its not a collection. 149 150 /* number of table entries in the directory/offsets table */ 151 int numTables; 152 153 /* The contents of the the directory/offsets table */ 154 DirectoryEntry []tableDirectory; 155 156 // protected byte []gposTable = null; 157 // protected byte []gdefTable = null; 158 // protected byte []gsubTable = null; 159 // protected byte []mortTable = null; 160 // protected boolean hintsTabledChecked = false; 161 // protected boolean containsHintsTable = false; 162 163 /* These fields are set from os/2 table info. */ 164 private boolean supportsJA; 165 private boolean supportsCJK; 166 167 /* These are for faster access to the name of the font as 168 * typically exposed via API to applications. 169 */ 170 private Locale nameLocale; 171 private String localeFamilyName; 172 private String localeFullName; 173 174 /** 175 * - does basic verification of the file 176 * - reads the header table for this font (within a collection) 177 * - reads the names (full, family). 178 * - determines the style of the font. 179 * - initializes the CMAP 180 * @throws FontFormatException - if the font can't be opened 181 * or fails verification, or there's no usable cmap 182 */ 183 public TrueTypeFont(String platname, Object nativeNames, int fIndex, 184 boolean javaRasterizer) 185 throws FontFormatException { 186 super(platname, nativeNames); 187 useJavaRasterizer = javaRasterizer; 188 fontRank = Font2D.TTF_RANK; 189 try { 190 verify(); 191 init(fIndex); 192 } catch (Throwable t) { 193 close(); 194 if (t instanceof FontFormatException) { 195 throw (FontFormatException)t; 196 } else { 197 throw new FontFormatException("Unexpected runtime exception."); 198 } 199 } 200 Disposer.addObjectRecord(this, disposerRecord); 201 } 202 203 /* Enable natives just for fonts picked up from the platform that 204 * may have external bitmaps on Solaris. Could do this just for 205 * the fonts that are specified in font configuration files which 206 * would lighten the burden (think about that). 207 * The EBLCTag is used to skip natives for fonts that contain embedded 208 * bitmaps as there's no need to use X11 for those fonts. 209 * Skip all the latin fonts as they don't need this treatment. 210 * Further refine this to fonts that are natively accessible (ie 211 * as PCF bitmap fonts on the X11 font path). 212 * This method is called when creating the first strike for this font. 213 */ 214 @Override 215 protected boolean checkUseNatives() { 216 if (checkedNatives) { 217 return useNatives; 218 } 219 if (!FontUtilities.isSolaris || useJavaRasterizer || 220 FontUtilities.useT2K || nativeNames == null || 221 getDirectoryEntry(EBLCTag) != null || 222 GraphicsEnvironment.isHeadless()) { 223 checkedNatives = true; 224 return false; /* useNatives is false */ 225 } else if (nativeNames instanceof String) { 226 String name = (String)nativeNames; 227 /* Don't do do this for Latin fonts */ 228 if (name.indexOf("8859") > 0) { 229 checkedNatives = true; 230 return false; 231 } else if (NativeFont.hasExternalBitmaps(name)) { 232 nativeFonts = new NativeFont[1]; 233 try { 234 nativeFonts[0] = new NativeFont(name, true); 235 /* If reach here we have an non-latin font that has 236 * external bitmaps and we successfully created it. 237 */ 238 useNatives = true; 239 } catch (FontFormatException e) { 240 nativeFonts = null; 241 } 242 } 243 } else if (nativeNames instanceof String[]) { 244 String[] natNames = (String[])nativeNames; 245 int numNames = natNames.length; 246 boolean externalBitmaps = false; 247 for (int nn = 0; nn < numNames; nn++) { 248 if (natNames[nn].indexOf("8859") > 0) { 249 checkedNatives = true; 250 return false; 251 } else if (NativeFont.hasExternalBitmaps(natNames[nn])) { 252 externalBitmaps = true; 253 } 254 } 255 if (!externalBitmaps) { 256 checkedNatives = true; 257 return false; 258 } 259 useNatives = true; 260 nativeFonts = new NativeFont[numNames]; 261 for (int nn = 0; nn < numNames; nn++) { 262 try { 263 nativeFonts[nn] = new NativeFont(natNames[nn], true); 264 } catch (FontFormatException e) { 265 useNatives = false; 266 nativeFonts = null; 267 } 268 } 269 } 270 if (useNatives) { 271 glyphToCharMap = new char[getMapper().getNumGlyphs()]; 272 } 273 checkedNatives = true; 274 return useNatives; 275 } 276 277 278 /* This is intended to be called, and the returned value used, 279 * from within a block synchronized on this font object. 280 * ie the channel returned may be nulled out at any time by "close()" 281 * unless the caller holds a lock. 282 * Deadlock warning: FontManager.addToPool(..) acquires a global lock, 283 * which means nested locks may be in effect. 284 */ 285 private synchronized FileChannel open() throws FontFormatException { 286 if (disposerRecord.channel == null) { 287 if (FontUtilities.isLogging()) { 288 FontUtilities.getLogger().info("open TTF: " + platName); 289 } 290 try { 291 RandomAccessFile raf = (RandomAccessFile) 292 java.security.AccessController.doPrivileged( 293 new java.security.PrivilegedAction() { 294 public Object run() { 295 try { 296 return new RandomAccessFile(platName, "r"); 297 } catch (FileNotFoundException ffne) { 298 } 299 return null; 300 } 301 }); 302 disposerRecord.channel = raf.getChannel(); 303 fileSize = (int)disposerRecord.channel.size(); 304 FontManager fm = FontManagerFactory.getInstance(); 305 if (fm instanceof SunFontManager) { 306 ((SunFontManager) fm).addToPool(this); 307 } 308 } catch (NullPointerException e) { 309 close(); 310 throw new FontFormatException(e.toString()); 311 } catch (ClosedChannelException e) { 312 /* NIO I/O is interruptible, recurse to retry operation. 313 * The call to channel.size() above can throw this exception. 314 * Clear interrupts before recursing in case NIO didn't. 315 * Note that close() sets disposerRecord.channel to null. 316 */ 317 Thread.interrupted(); 318 close(); 319 open(); 320 } catch (IOException e) { 321 close(); 322 throw new FontFormatException(e.toString()); 323 } 324 } 325 return disposerRecord.channel; 326 } 327 328 protected synchronized void close() { 329 disposerRecord.dispose(); 330 } 331 332 333 int readBlock(ByteBuffer buffer, int offset, int length) { 334 int bread = 0; 335 try { 336 synchronized (this) { 337 if (disposerRecord.channel == null) { 338 open(); 339 } 340 if (offset + length > fileSize) { 341 if (offset >= fileSize) { 342 /* Since the caller ensures that offset is < fileSize 343 * this condition suggests that fileSize is now 344 * different than the value we originally provided 345 * to native when the scaler was created. 346 * Also fileSize is updated every time we 347 * open() the file here, but in native the value 348 * isn't updated. If the file has changed whilst we 349 * are executing we want to bail, not spin. 350 */ 351 if (FontUtilities.isLogging()) { 352 String msg = "Read offset is " + offset + 353 " file size is " + fileSize+ 354 " file is " + platName; 355 FontUtilities.getLogger().severe(msg); 356 } 357 return -1; 358 } else { 359 length = fileSize - offset; 360 } 361 } 362 buffer.clear(); 363 disposerRecord.channel.position(offset); 364 while (bread < length) { 365 int cnt = disposerRecord.channel.read(buffer); 366 if (cnt == -1) { 367 String msg = "Unexpected EOF " + this; 368 int currSize = (int)disposerRecord.channel.size(); 369 if (currSize != fileSize) { 370 msg += " File size was " + fileSize + 371 " and now is " + currSize; 372 } 373 if (FontUtilities.isLogging()) { 374 FontUtilities.getLogger().severe(msg); 375 } 376 // We could still flip() the buffer here because 377 // it's possible that we did read some data in 378 // an earlier loop, and we probably should 379 // return that to the caller. Although if 380 // the caller expected 8K of data and we return 381 // only a few bytes then maybe it's better instead to 382 // set bread = -1 to indicate failure. 383 // The following is therefore using arbitrary values 384 // but is meant to allow cases where enough 385 // data was read to probably continue. 386 if (bread > length/2 || bread > 16384) { 387 buffer.flip(); 388 if (FontUtilities.isLogging()) { 389 msg = "Returning " + bread + 390 " bytes instead of " + length; 391 FontUtilities.getLogger().severe(msg); 392 } 393 } else { 394 bread = -1; 395 } 396 throw new IOException(msg); 397 } 398 bread += cnt; 399 } 400 buffer.flip(); 401 if (bread > length) { // possible if buffer.size() > length 402 bread = length; 403 } 404 } 405 } catch (FontFormatException e) { 406 if (FontUtilities.isLogging()) { 407 FontUtilities.getLogger().severe( 408 "While reading " + platName, e); 409 } 410 bread = -1; // signal EOF 411 deregisterFontAndClearStrikeCache(); 412 } catch (ClosedChannelException e) { 413 /* NIO I/O is interruptible, recurse to retry operation. 414 * Clear interrupts before recursing in case NIO didn't. 415 */ 416 Thread.interrupted(); 417 close(); 418 return readBlock(buffer, offset, length); 419 } catch (IOException e) { 420 /* If we did not read any bytes at all and the exception is 421 * not a recoverable one (ie is not ClosedChannelException) then 422 * we should indicate that there is no point in re-trying. 423 * Other than an attempt to read past the end of the file it 424 * seems unlikely this would occur as problems opening the 425 * file are handled as a FontFormatException. 426 */ 427 if (FontUtilities.isLogging()) { 428 FontUtilities.getLogger().severe( 429 "While reading " + platName, e); 430 } 431 if (bread == 0) { 432 bread = -1; // signal EOF 433 deregisterFontAndClearStrikeCache(); 434 } 435 } 436 return bread; 437 } 438 439 ByteBuffer readBlock(int offset, int length) { 440 441 ByteBuffer buffer = ByteBuffer.allocate(length); 442 try { 443 synchronized (this) { 444 if (disposerRecord.channel == null) { 445 open(); 446 } 447 if (offset + length > fileSize) { 448 if (offset > fileSize) { 449 return null; // assert? 450 } else { 451 buffer = ByteBuffer.allocate(fileSize-offset); 452 } 453 } 454 disposerRecord.channel.position(offset); 455 disposerRecord.channel.read(buffer); 456 buffer.flip(); 457 } 458 } catch (FontFormatException e) { 459 return null; 460 } catch (ClosedChannelException e) { 461 /* NIO I/O is interruptible, recurse to retry operation. 462 * Clear interrupts before recursing in case NIO didn't. 463 */ 464 Thread.interrupted(); 465 close(); 466 readBlock(buffer, offset, length); 467 } catch (IOException e) { 468 return null; 469 } 470 return buffer; 471 } 472 473 /* This is used by native code which can't allocate a direct byte 474 * buffer because of bug 4845371. It, and references to it in native 475 * code in scalerMethods.c can be removed once that bug is fixed. 476 * 4845371 is now fixed but we'll keep this around as it doesn't cost 477 * us anything if its never used/called. 478 */ 479 byte[] readBytes(int offset, int length) { 480 ByteBuffer buffer = readBlock(offset, length); 481 if (buffer.hasArray()) { 482 return buffer.array(); 483 } else { 484 byte[] bufferBytes = new byte[buffer.limit()]; 485 buffer.get(bufferBytes); 486 return bufferBytes; 487 } 488 } 489 490 private void verify() throws FontFormatException { 491 open(); 492 } 493 494 /* sizes, in bytes, of TT/TTC header records */ 495 private static final int TTCHEADERSIZE = 12; 496 private static final int DIRECTORYHEADERSIZE = 12; 497 private static final int DIRECTORYENTRYSIZE = 16; 498 499 protected void init(int fIndex) throws FontFormatException { 500 int headerOffset = 0; 501 ByteBuffer buffer = readBlock(0, TTCHEADERSIZE); 502 try { 503 switch (buffer.getInt()) { 504 505 case ttcfTag: 506 buffer.getInt(); // skip TTC version ID 507 directoryCount = buffer.getInt(); 508 if (fIndex >= directoryCount) { 509 throw new FontFormatException("Bad collection index"); 510 } 511 fontIndex = fIndex; 512 buffer = readBlock(TTCHEADERSIZE+4*fIndex, 4); 513 headerOffset = buffer.getInt(); 514 break; 515 516 case v1ttTag: 517 case trueTag: 518 case ottoTag: 519 break; 520 521 default: 522 throw new FontFormatException("Unsupported sfnt " + 523 getPublicFileName()); 524 } 525 526 /* Now have the offset of this TT font (possibly within a TTC) 527 * After the TT version/scaler type field, is the short 528 * representing the number of tables in the table directory. 529 * The table directory begins at 12 bytes after the header. 530 * Each table entry is 16 bytes long (4 32-bit ints) 531 */ 532 buffer = readBlock(headerOffset+4, 2); 533 numTables = buffer.getShort(); 534 directoryOffset = headerOffset+DIRECTORYHEADERSIZE; 535 ByteBuffer bbuffer = readBlock(directoryOffset, 536 numTables*DIRECTORYENTRYSIZE); 537 IntBuffer ibuffer = bbuffer.asIntBuffer(); 538 DirectoryEntry table; 539 tableDirectory = new DirectoryEntry[numTables]; 540 for (int i=0; i<numTables;i++) { 541 tableDirectory[i] = table = new DirectoryEntry(); 542 table.tag = ibuffer.get(); 543 /* checksum */ ibuffer.get(); 544 table.offset = ibuffer.get(); 545 table.length = ibuffer.get(); 546 if (table.offset + table.length > fileSize) { 547 throw new FontFormatException("bad table, tag="+table.tag); 548 } 549 } 550 551 if (getDirectoryEntry(headTag) == null) { 552 throw new FontFormatException("missing head table"); 553 } 554 if (getDirectoryEntry(maxpTag) == null) { 555 throw new FontFormatException("missing maxp table"); 556 } 557 if (getDirectoryEntry(hmtxTag) != null 558 && getDirectoryEntry(hheaTag) == null) { 559 throw new FontFormatException("missing hhea table"); 560 } 561 initNames(); 562 } catch (Exception e) { 563 if (FontUtilities.isLogging()) { 564 FontUtilities.getLogger().severe(e.toString()); 565 } 566 if (e instanceof FontFormatException) { 567 throw (FontFormatException)e; 568 } else { 569 throw new FontFormatException(e.toString()); 570 } 571 } 572 if (familyName == null || fullName == null) { 573 throw new FontFormatException("Font name not found"); 574 } 575 /* The os2_Table is needed to gather some info, but we don't 576 * want to keep it around (as a field) so obtain it once and 577 * pass it to the code that needs it. 578 */ 579 ByteBuffer os2_Table = getTableBuffer(os_2Tag); 580 setStyle(os2_Table); 581 setCJKSupport(os2_Table); 582 } 583 584 /* The array index corresponds to a bit offset in the TrueType 585 * font's OS/2 compatibility table's code page ranges fields. 586 * These are two 32 bit unsigned int fields at offsets 78 and 82. 587 * We are only interested in determining if the font supports 588 * the windows encodings we expect as the default encoding in 589 * supported locales, so we only map the first of these fields. 590 */ 591 static final String encoding_mapping[] = { 592 "cp1252", /* 0:Latin 1 */ 593 "cp1250", /* 1:Latin 2 */ 594 "cp1251", /* 2:Cyrillic */ 595 "cp1253", /* 3:Greek */ 596 "cp1254", /* 4:Turkish/Latin 5 */ 597 "cp1255", /* 5:Hebrew */ 598 "cp1256", /* 6:Arabic */ 599 "cp1257", /* 7:Windows Baltic */ 600 "", /* 8:reserved for alternate ANSI */ 601 "", /* 9:reserved for alternate ANSI */ 602 "", /* 10:reserved for alternate ANSI */ 603 "", /* 11:reserved for alternate ANSI */ 604 "", /* 12:reserved for alternate ANSI */ 605 "", /* 13:reserved for alternate ANSI */ 606 "", /* 14:reserved for alternate ANSI */ 607 "", /* 15:reserved for alternate ANSI */ 608 "ms874", /* 16:Thai */ 609 "ms932", /* 17:JIS/Japanese */ 610 "gbk", /* 18:PRC GBK Cp950 */ 611 "ms949", /* 19:Korean Extended Wansung */ 612 "ms950", /* 20:Chinese (Taiwan, Hongkong, Macau) */ 613 "ms1361", /* 21:Korean Johab */ 614 "", /* 22 */ 615 "", /* 23 */ 616 "", /* 24 */ 617 "", /* 25 */ 618 "", /* 26 */ 619 "", /* 27 */ 620 "", /* 28 */ 621 "", /* 29 */ 622 "", /* 30 */ 623 "", /* 31 */ 624 }; 625 626 /* This maps two letter language codes to a Windows code page. 627 * Note that eg Cp1252 (the first subarray) is not exactly the same as 628 * Latin-1 since Windows code pages are do not necessarily correspond. 629 * There are two codepages for zh and ko so if a font supports 630 * only one of these ranges then we need to distinguish based on 631 * country. So far this only seems to matter for zh. 632 * REMIND: Unicode locales such as Hindi do not have a code page so 633 * this whole mechanism needs to be revised to map languages to 634 * the Unicode ranges either when this fails, or as an additional 635 * validating test. Basing it on Unicode ranges should get us away 636 * from needing to map to this small and incomplete set of Windows 637 * code pages which looks odd on non-Windows platforms. 638 */ 639 private static final String languages[][] = { 640 641 /* cp1252/Latin 1 */ 642 { "en", "ca", "da", "de", "es", "fi", "fr", "is", "it", 643 "nl", "no", "pt", "sq", "sv", }, 644 645 /* cp1250/Latin2 */ 646 { "cs", "cz", "et", "hr", "hu", "nr", "pl", "ro", "sk", 647 "sl", "sq", "sr", }, 648 649 /* cp1251/Cyrillic */ 650 { "bg", "mk", "ru", "sh", "uk" }, 651 652 /* cp1253/Greek*/ 653 { "el" }, 654 655 /* cp1254/Turkish,Latin 5 */ 656 { "tr" }, 657 658 /* cp1255/Hebrew */ 659 { "he" }, 660 661 /* cp1256/Arabic */ 662 { "ar" }, 663 664 /* cp1257/Windows Baltic */ 665 { "et", "lt", "lv" }, 666 667 /* ms874/Thai */ 668 { "th" }, 669 670 /* ms932/Japanese */ 671 { "ja" }, 672 673 /* gbk/Chinese (PRC GBK Cp950) */ 674 { "zh", "zh_CN", }, 675 676 /* ms949/Korean Extended Wansung */ 677 { "ko" }, 678 679 /* ms950/Chinese (Taiwan, Hongkong, Macau) */ 680 { "zh_HK", "zh_TW", }, 681 682 /* ms1361/Korean Johab */ 683 { "ko" }, 684 }; 685 686 private static final String codePages[] = { 687 "cp1252", 688 "cp1250", 689 "cp1251", 690 "cp1253", 691 "cp1254", 692 "cp1255", 693 "cp1256", 694 "cp1257", 695 "ms874", 696 "ms932", 697 "gbk", 698 "ms949", 699 "ms950", 700 "ms1361", 701 }; 702 703 private static String defaultCodePage = null; 704 static String getCodePage() { 705 706 if (defaultCodePage != null) { 707 return defaultCodePage; 708 } 709 710 if (FontUtilities.isWindows) { 711 defaultCodePage = 712 java.security.AccessController.doPrivileged( 713 new sun.security.action.GetPropertyAction("file.encoding")); 714 } else { 715 if (languages.length != codePages.length) { 716 throw new InternalError("wrong code pages array length"); 717 } 718 Locale locale = sun.awt.SunToolkit.getStartupLocale(); 719 720 String language = locale.getLanguage(); 721 if (language != null) { 722 if (language.equals("zh")) { 723 String country = locale.getCountry(); 724 if (country != null) { 725 language = language + "_" + country; 726 } 727 } 728 for (int i=0; i<languages.length;i++) { 729 for (int l=0;l<languages[i].length; l++) { 730 if (language.equals(languages[i][l])) { 731 defaultCodePage = codePages[i]; 732 return defaultCodePage; 733 } 734 } 735 } 736 } 737 } 738 if (defaultCodePage == null) { 739 defaultCodePage = ""; 740 } 741 return defaultCodePage; 742 } 743 744 /* Theoretically, reserved bits must not be set, include symbol bits */ 745 public static final int reserved_bits1 = 0x80000000; 746 public static final int reserved_bits2 = 0x0000ffff; 747 @Override 748 boolean supportsEncoding(String encoding) { 749 if (encoding == null) { 750 encoding = getCodePage(); 751 } 752 if ("".equals(encoding)) { 753 return false; 754 } 755 756 encoding = encoding.toLowerCase(); 757 758 /* java_props_md.c has a couple of special cases 759 * if language packs are installed. In these encodings the 760 * fontconfig files pick up different fonts : 761 * SimSun-18030 and MingLiU_HKSCS. Since these fonts will 762 * indicate they support the base encoding, we need to rewrite 763 * these encodings here before checking the map/array. 764 */ 765 if (encoding.equals("gb18030")) { 766 encoding = "gbk"; 767 } else if (encoding.equals("ms950_hkscs")) { 768 encoding = "ms950"; 769 } 770 771 ByteBuffer buffer = getTableBuffer(os_2Tag); 772 /* required info is at offsets 78 and 82 */ 773 if (buffer == null || buffer.capacity() < 86) { 774 return false; 775 } 776 777 int range1 = buffer.getInt(78); /* ulCodePageRange1 */ 778 int range2 = buffer.getInt(82); /* ulCodePageRange2 */ 779 780 /* This test is too stringent for Arial on Solaris (and perhaps 781 * other fonts). Arial has at least one reserved bit set for an 782 * unknown reason. 783 */ 784 // if (((range1 & reserved_bits1) | (range2 & reserved_bits2)) != 0) { 785 // return false; 786 // } 787 788 for (int em=0; em<encoding_mapping.length; em++) { 789 if (encoding_mapping[em].equals(encoding)) { 790 if (((1 << em) & range1) != 0) { 791 return true; 792 } 793 } 794 } 795 return false; 796 } 797 798 799 /* Use info in the os_2Table to test CJK support */ 800 private void setCJKSupport(ByteBuffer os2Table) { 801 /* required info is in ulong at offset 46 */ 802 if (os2Table == null || os2Table.capacity() < 50) { 803 return; 804 } 805 int range2 = os2Table.getInt(46); /* ulUnicodeRange2 */ 806 807 /* Any of these bits set in the 32-63 range indicate a font with 808 * support for a CJK range. We aren't looking at some other bits 809 * in the 64-69 range such as half width forms as its unlikely a font 810 * would include those and none of these. 811 */ 812 supportsCJK = ((range2 & 0x29bf0000) != 0); 813 814 /* This should be generalised, but for now just need to know if 815 * Hiragana or Katakana ranges are supported by the font. 816 * In the 4 longs representing unicode ranges supported 817 * bits 49 & 50 indicate hiragana and katakana 818 * This is bits 17 & 18 in the 2nd ulong. If either is supported 819 * we presume this is a JA font. 820 */ 821 supportsJA = ((range2 & 0x60000) != 0); 822 } 823 824 boolean supportsJA() { 825 return supportsJA; 826 } 827 828 ByteBuffer getTableBuffer(int tag) { 829 DirectoryEntry entry = null; 830 831 for (int i=0;i<numTables;i++) { 832 if (tableDirectory[i].tag == tag) { 833 entry = tableDirectory[i]; 834 break; 835 } 836 } 837 if (entry == null || entry.length == 0 || 838 entry.offset+entry.length > fileSize) { 839 return null; 840 } 841 842 int bread = 0; 843 ByteBuffer buffer = ByteBuffer.allocate(entry.length); 844 synchronized (this) { 845 try { 846 if (disposerRecord.channel == null) { 847 open(); 848 } 849 disposerRecord.channel.position(entry.offset); 850 bread = disposerRecord.channel.read(buffer); 851 buffer.flip(); 852 } catch (ClosedChannelException e) { 853 /* NIO I/O is interruptible, recurse to retry operation. 854 * Clear interrupts before recursing in case NIO didn't. 855 */ 856 Thread.interrupted(); 857 close(); 858 return getTableBuffer(tag); 859 } catch (IOException e) { 860 return null; 861 } catch (FontFormatException e) { 862 return null; 863 } 864 865 if (bread < entry.length) { 866 return null; 867 } else { 868 return buffer; 869 } 870 } 871 } 872 873 /* NB: is it better to move declaration to Font2D? */ 874 long getLayoutTableCache() { 875 try { 876 return getScaler().getLayoutTableCache(); 877 } catch(FontScalerException fe) { 878 return 0L; 879 } 880 } 881 882 @Override 883 byte[] getTableBytes(int tag) { 884 ByteBuffer buffer = getTableBuffer(tag); 885 if (buffer == null) { 886 return null; 887 } else if (buffer.hasArray()) { 888 try { 889 return buffer.array(); 890 } catch (Exception re) { 891 } 892 } 893 byte []data = new byte[getTableSize(tag)]; 894 buffer.get(data); 895 return data; 896 } 897 898 int getTableSize(int tag) { 899 for (int i=0;i<numTables;i++) { 900 if (tableDirectory[i].tag == tag) { 901 return tableDirectory[i].length; 902 } 903 } 904 return 0; 905 } 906 907 int getTableOffset(int tag) { 908 for (int i=0;i<numTables;i++) { 909 if (tableDirectory[i].tag == tag) { 910 return tableDirectory[i].offset; 911 } 912 } 913 return 0; 914 } 915 916 DirectoryEntry getDirectoryEntry(int tag) { 917 for (int i=0;i<numTables;i++) { 918 if (tableDirectory[i].tag == tag) { 919 return tableDirectory[i]; 920 } 921 } 922 return null; 923 } 924 925 /* Used to determine if this size has embedded bitmaps, which 926 * for CJK fonts should be used in preference to LCD glyphs. 927 */ 928 boolean useEmbeddedBitmapsForSize(int ptSize) { 929 if (!supportsCJK) { 930 return false; 931 } 932 if (getDirectoryEntry(EBLCTag) == null) { 933 return false; 934 } 935 ByteBuffer eblcTable = getTableBuffer(EBLCTag); 936 int numSizes = eblcTable.getInt(4); 937 /* The bitmapSizeTable's start at offset of 8. 938 * Each bitmapSizeTable entry is 48 bytes. 939 * The offset of ppemY in the entry is 45. 940 */ 941 for (int i=0;i<numSizes;i++) { 942 int ppemY = eblcTable.get(8+(i*48)+45) &0xff; 943 if (ppemY == ptSize) { 944 return true; 945 } 946 } 947 return false; 948 } 949 950 public String getFullName() { 951 return fullName; 952 } 953 954 /* This probably won't get called but is there to support the 955 * contract() of setStyle() defined in the superclass. 956 */ 957 @Override 958 protected void setStyle() { 959 setStyle(getTableBuffer(os_2Tag)); 960 } 961 962 /* TrueTypeFont can use the fsSelection fields of OS/2 table 963 * to determine the style. In the unlikely case that doesn't exist, 964 * can use macStyle in the 'head' table but simpler to 965 * fall back to super class algorithm of looking for well known string. 966 * A very few fonts don't specify this information, but I only 967 * came across one: Lucida Sans Thai Typewriter Oblique in 968 * /usr/openwin/lib/locale/th_TH/X11/fonts/TrueType/lucidai.ttf 969 * that explicitly specified the wrong value. It says its regular. 970 * I didn't find any fonts that were inconsistent (ie regular plus some 971 * other value). 972 */ 973 private static final int fsSelectionItalicBit = 0x00001; 974 private static final int fsSelectionBoldBit = 0x00020; 975 private static final int fsSelectionRegularBit = 0x00040; 976 private void setStyle(ByteBuffer os_2Table) { 977 /* fsSelection is unsigned short at buffer offset 62 */ 978 if (os_2Table == null || os_2Table.capacity() < 64) { 979 super.setStyle(); 980 return; 981 } 982 int fsSelection = os_2Table.getChar(62) & 0xffff; 983 int italic = fsSelection & fsSelectionItalicBit; 984 int bold = fsSelection & fsSelectionBoldBit; 985 int regular = fsSelection & fsSelectionRegularBit; 986 // System.out.println("platname="+platName+" font="+fullName+ 987 // " family="+familyName+ 988 // " R="+regular+" I="+italic+" B="+bold); 989 if (regular!=0 && ((italic|bold)!=0)) { 990 /* This is inconsistent. Try using the font name algorithm */ 991 super.setStyle(); 992 return; 993 } else if ((regular|italic|bold) == 0) { 994 /* No style specified. Try using the font name algorithm */ 995 super.setStyle(); 996 return; 997 } 998 switch (bold|italic) { 999 case fsSelectionItalicBit: 1000 style = Font.ITALIC; 1001 break; 1002 case fsSelectionBoldBit: 1003 if (FontUtilities.isSolaris && platName.endsWith("HG-GothicB.ttf")) { 1004 /* Workaround for Solaris's use of a JA font that's marked as 1005 * being designed bold, but is used as a PLAIN font. 1006 */ 1007 style = Font.PLAIN; 1008 } else { 1009 style = Font.BOLD; 1010 } 1011 break; 1012 case fsSelectionBoldBit|fsSelectionItalicBit: 1013 style = Font.BOLD|Font.ITALIC; 1014 } 1015 } 1016 1017 private float stSize, stPos, ulSize, ulPos; 1018 1019 private void setStrikethroughMetrics(ByteBuffer os_2Table, int upem) { 1020 if (os_2Table == null || os_2Table.capacity() < 30 || upem < 0) { 1021 stSize = .05f; 1022 stPos = -.4f; 1023 return; 1024 } 1025 ShortBuffer sb = os_2Table.asShortBuffer(); 1026 stSize = sb.get(13) / (float)upem; 1027 stPos = -sb.get(14) / (float)upem; 1028 } 1029 1030 private void setUnderlineMetrics(ByteBuffer postTable, int upem) { 1031 if (postTable == null || postTable.capacity() < 12 || upem < 0) { 1032 ulSize = .05f; 1033 ulPos = .1f; 1034 return; 1035 } 1036 ShortBuffer sb = postTable.asShortBuffer(); 1037 ulSize = sb.get(5) / (float)upem; 1038 ulPos = -sb.get(4) / (float)upem; 1039 } 1040 1041 @Override 1042 public void getStyleMetrics(float pointSize, float[] metrics, int offset) { 1043 1044 if (ulSize == 0f && ulPos == 0f) { 1045 1046 ByteBuffer head_Table = getTableBuffer(headTag); 1047 int upem = -1; 1048 if (head_Table != null && head_Table.capacity() >= 18) { 1049 ShortBuffer sb = head_Table.asShortBuffer(); 1050 upem = sb.get(9) & 0xffff; 1051 if (upem < 16 || upem > 16384) { 1052 upem = 2048; 1053 } 1054 } 1055 1056 ByteBuffer os2_Table = getTableBuffer(os_2Tag); 1057 setStrikethroughMetrics(os2_Table, upem); 1058 1059 ByteBuffer post_Table = getTableBuffer(postTag); 1060 setUnderlineMetrics(post_Table, upem); 1061 } 1062 1063 metrics[offset] = stPos * pointSize; 1064 metrics[offset+1] = stSize * pointSize; 1065 1066 metrics[offset+2] = ulPos * pointSize; 1067 metrics[offset+3] = ulSize * pointSize; 1068 } 1069 1070 private String makeString(byte[] bytes, int len, short encoding) { 1071 1072 /* Check for fonts using encodings 2->6 is just for 1073 * some old DBCS fonts, apparently mostly on Solaris. 1074 * Some of these fonts encode ascii names as double-byte characters. 1075 * ie with a leading zero byte for what properly should be a 1076 * single byte-char. 1077 */ 1078 if (encoding >=2 && encoding <= 6) { 1079 byte[] oldbytes = bytes; 1080 int oldlen = len; 1081 bytes = new byte[oldlen]; 1082 len = 0; 1083 for (int i=0; i<oldlen; i++) { 1084 if (oldbytes[i] != 0) { 1085 bytes[len++] = oldbytes[i]; 1086 } 1087 } 1088 } 1089 1090 String charset; 1091 switch (encoding) { 1092 case 1: charset = "UTF-16"; break; // most common case first. 1093 case 0: charset = "UTF-16"; break; // symbol uses this 1094 case 2: charset = "SJIS"; break; 1095 case 3: charset = "GBK"; break; 1096 case 4: charset = "MS950"; break; 1097 case 5: charset = "EUC_KR"; break; 1098 case 6: charset = "Johab"; break; 1099 default: charset = "UTF-16"; break; 1100 } 1101 1102 try { 1103 return new String(bytes, 0, len, charset); 1104 } catch (UnsupportedEncodingException e) { 1105 if (FontUtilities.isLogging()) { 1106 FontUtilities.getLogger().warning(e + " EncodingID=" + encoding); 1107 } 1108 return new String(bytes, 0, len); 1109 } catch (Throwable t) { 1110 return null; 1111 } 1112 } 1113 1114 protected void initNames() { 1115 1116 byte[] name = new byte[256]; 1117 ByteBuffer buffer = getTableBuffer(nameTag); 1118 1119 if (buffer != null) { 1120 ShortBuffer sbuffer = buffer.asShortBuffer(); 1121 sbuffer.get(); // format - not needed. 1122 short numRecords = sbuffer.get(); 1123 /* The name table uses unsigned shorts. Many of these 1124 * are known small values that fit in a short. 1125 * The values that are sizes or offsets into the table could be 1126 * greater than 32767, so read and store those as ints 1127 */ 1128 int stringPtr = sbuffer.get() & 0xffff; 1129 1130 nameLocale = sun.awt.SunToolkit.getStartupLocale(); 1131 short nameLocaleID = getLCIDFromLocale(nameLocale); 1132 1133 for (int i=0; i<numRecords; i++) { 1134 short platformID = sbuffer.get(); 1135 if (platformID != MS_PLATFORM_ID) { 1136 sbuffer.position(sbuffer.position()+5); 1137 continue; // skip over this record. 1138 } 1139 short encodingID = sbuffer.get(); 1140 short langID = sbuffer.get(); 1141 short nameID = sbuffer.get(); 1142 int nameLen = ((int) sbuffer.get()) & 0xffff; 1143 int namePtr = (((int) sbuffer.get()) & 0xffff) + stringPtr; 1144 String tmpName = null; 1145 switch (nameID) { 1146 1147 case FAMILY_NAME_ID: 1148 1149 if (familyName == null || langID == ENGLISH_LOCALE_ID || 1150 langID == nameLocaleID) 1151 { 1152 buffer.position(namePtr); 1153 buffer.get(name, 0, nameLen); 1154 tmpName = makeString(name, nameLen, encodingID); 1155 1156 if (familyName == null || langID == ENGLISH_LOCALE_ID){ 1157 familyName = tmpName; 1158 } 1159 if (langID == nameLocaleID) { 1160 localeFamilyName = tmpName; 1161 } 1162 } 1163 /* 1164 for (int ii=0;ii<nameLen;ii++) { 1165 int val = (int)name[ii]&0xff; 1166 System.err.print(Integer.toHexString(val)+ " "); 1167 } 1168 System.err.println(); 1169 System.err.println("familyName="+familyName + 1170 " nameLen="+nameLen+ 1171 " langID="+langID+ " eid="+encodingID + 1172 " str len="+familyName.length()); 1173 1174 */ 1175 break; 1176 1177 case FULL_NAME_ID: 1178 1179 if (fullName == null || langID == ENGLISH_LOCALE_ID || 1180 langID == nameLocaleID) 1181 { 1182 buffer.position(namePtr); 1183 buffer.get(name, 0, nameLen); 1184 tmpName = makeString(name, nameLen, encodingID); 1185 1186 if (fullName == null || langID == ENGLISH_LOCALE_ID) { 1187 fullName = tmpName; 1188 } 1189 if (langID == nameLocaleID) { 1190 localeFullName = tmpName; 1191 } 1192 } 1193 break; 1194 } 1195 } 1196 if (localeFamilyName == null) { 1197 localeFamilyName = familyName; 1198 } 1199 if (localeFullName == null) { 1200 localeFullName = fullName; 1201 } 1202 } 1203 } 1204 1205 /* Return the requested name in the requested locale, for the 1206 * MS platform ID. If the requested locale isn't found, return US 1207 * English, if that isn't found, return null and let the caller 1208 * figure out how to handle that. 1209 */ 1210 protected String lookupName(short findLocaleID, int findNameID) { 1211 String foundName = null; 1212 byte[] name = new byte[1024]; 1213 1214 ByteBuffer buffer = getTableBuffer(nameTag); 1215 if (buffer != null) { 1216 ShortBuffer sbuffer = buffer.asShortBuffer(); 1217 sbuffer.get(); // format - not needed. 1218 short numRecords = sbuffer.get(); 1219 1220 /* The name table uses unsigned shorts. Many of these 1221 * are known small values that fit in a short. 1222 * The values that are sizes or offsets into the table could be 1223 * greater than 32767, so read and store those as ints 1224 */ 1225 int stringPtr = ((int) sbuffer.get()) & 0xffff; 1226 1227 for (int i=0; i<numRecords; i++) { 1228 short platformID = sbuffer.get(); 1229 if (platformID != MS_PLATFORM_ID) { 1230 sbuffer.position(sbuffer.position()+5); 1231 continue; // skip over this record. 1232 } 1233 short encodingID = sbuffer.get(); 1234 short langID = sbuffer.get(); 1235 short nameID = sbuffer.get(); 1236 int nameLen = ((int) sbuffer.get()) & 0xffff; 1237 int namePtr = (((int) sbuffer.get()) & 0xffff) + stringPtr; 1238 if (nameID == findNameID && 1239 ((foundName == null && langID == ENGLISH_LOCALE_ID) 1240 || langID == findLocaleID)) { 1241 buffer.position(namePtr); 1242 buffer.get(name, 0, nameLen); 1243 foundName = makeString(name, nameLen, encodingID); 1244 if (langID == findLocaleID) { 1245 return foundName; 1246 } 1247 } 1248 } 1249 } 1250 return foundName; 1251 } 1252 1253 /** 1254 * @return number of logical fonts. Is "1" for all but TTC files 1255 */ 1256 public int getFontCount() { 1257 return directoryCount; 1258 } 1259 1260 protected synchronized FontScaler getScaler() { 1261 if (scaler == null) { 1262 scaler = FontScaler.getScaler(this, fontIndex, 1263 supportsCJK, fileSize); 1264 } 1265 return scaler; 1266 } 1267 1268 1269 /* Postscript name is rarely requested. Don't waste cycles locating it 1270 * as part of font creation, nor storage to hold it. Get it only on demand. 1271 */ 1272 @Override 1273 public String getPostscriptName() { 1274 String name = lookupName(ENGLISH_LOCALE_ID, POSTSCRIPT_NAME_ID); 1275 if (name == null) { 1276 return fullName; 1277 } else { 1278 return name; 1279 } 1280 } 1281 1282 @Override 1283 public String getFontName(Locale locale) { 1284 if (locale == null) { 1285 return fullName; 1286 } else if (locale.equals(nameLocale) && localeFullName != null) { 1287 return localeFullName; 1288 } else { 1289 short localeID = getLCIDFromLocale(locale); 1290 String name = lookupName(localeID, FULL_NAME_ID); 1291 if (name == null) { 1292 return fullName; 1293 } else { 1294 return name; 1295 } 1296 } 1297 } 1298 1299 // Return a Microsoft LCID from the given Locale. 1300 // Used when getting localized font data. 1301 1302 private static void addLCIDMapEntry(Map<String, Short> map, 1303 String key, short value) { 1304 map.put(key, Short.valueOf(value)); 1305 } 1306 1307 private static synchronized void createLCIDMap() { 1308 if (lcidMap != null) { 1309 return; 1310 } 1311 1312 Map<String, Short> map = new HashMap<String, Short>(200); 1313 1314 // the following statements are derived from the langIDMap 1315 // in src/windows/native/java/lang/java_props_md.c using the following 1316 // awk script: 1317 // $1~/\/\*/ { next} 1318 // $3~/\?\?/ { next } 1319 // $3!~/_/ { next } 1320 // $1~/0x0409/ { next } 1321 // $1~/0x0c0a/ { next } 1322 // $1~/0x042c/ { next } 1323 // $1~/0x0443/ { next } 1324 // $1~/0x0812/ { next } 1325 // $1~/0x04/ { print " addLCIDMapEntry(map, " substr($3, 0, 3) "\", (short) " substr($1, 0, 6) ");" ; next } 1326 // $3~/,/ { print " addLCIDMapEntry(map, " $3 " (short) " substr($1, 0, 6) ");" ; next } 1327 // { print " addLCIDMapEntry(map, " $3 ", (short) " substr($1, 0, 6) ");" ; next } 1328 // The lines of this script: 1329 // - eliminate comments 1330 // - eliminate questionable locales 1331 // - eliminate language-only locales 1332 // - eliminate the default LCID value 1333 // - eliminate a few other unneeded LCID values 1334 // - print language-only locale entries for x04* LCID values 1335 // (apparently Microsoft doesn't use language-only LCID values - 1336 // see http://www.microsoft.com/OpenType/otspec/name.htm 1337 // - print complete entries for all other LCID values 1338 // Run 1339 // awk -f awk-script langIDMap > statements 1340 addLCIDMapEntry(map, "ar", (short) 0x0401); 1341 addLCIDMapEntry(map, "bg", (short) 0x0402); 1342 addLCIDMapEntry(map, "ca", (short) 0x0403); 1343 addLCIDMapEntry(map, "zh", (short) 0x0404); 1344 addLCIDMapEntry(map, "cs", (short) 0x0405); 1345 addLCIDMapEntry(map, "da", (short) 0x0406); 1346 addLCIDMapEntry(map, "de", (short) 0x0407); 1347 addLCIDMapEntry(map, "el", (short) 0x0408); 1348 addLCIDMapEntry(map, "es", (short) 0x040a); 1349 addLCIDMapEntry(map, "fi", (short) 0x040b); 1350 addLCIDMapEntry(map, "fr", (short) 0x040c); 1351 addLCIDMapEntry(map, "iw", (short) 0x040d); 1352 addLCIDMapEntry(map, "hu", (short) 0x040e); 1353 addLCIDMapEntry(map, "is", (short) 0x040f); 1354 addLCIDMapEntry(map, "it", (short) 0x0410); 1355 addLCIDMapEntry(map, "ja", (short) 0x0411); 1356 addLCIDMapEntry(map, "ko", (short) 0x0412); 1357 addLCIDMapEntry(map, "nl", (short) 0x0413); 1358 addLCIDMapEntry(map, "no", (short) 0x0414); 1359 addLCIDMapEntry(map, "pl", (short) 0x0415); 1360 addLCIDMapEntry(map, "pt", (short) 0x0416); 1361 addLCIDMapEntry(map, "rm", (short) 0x0417); 1362 addLCIDMapEntry(map, "ro", (short) 0x0418); 1363 addLCIDMapEntry(map, "ru", (short) 0x0419); 1364 addLCIDMapEntry(map, "hr", (short) 0x041a); 1365 addLCIDMapEntry(map, "sk", (short) 0x041b); 1366 addLCIDMapEntry(map, "sq", (short) 0x041c); 1367 addLCIDMapEntry(map, "sv", (short) 0x041d); 1368 addLCIDMapEntry(map, "th", (short) 0x041e); 1369 addLCIDMapEntry(map, "tr", (short) 0x041f); 1370 addLCIDMapEntry(map, "ur", (short) 0x0420); 1371 addLCIDMapEntry(map, "in", (short) 0x0421); 1372 addLCIDMapEntry(map, "uk", (short) 0x0422); 1373 addLCIDMapEntry(map, "be", (short) 0x0423); 1374 addLCIDMapEntry(map, "sl", (short) 0x0424); 1375 addLCIDMapEntry(map, "et", (short) 0x0425); 1376 addLCIDMapEntry(map, "lv", (short) 0x0426); 1377 addLCIDMapEntry(map, "lt", (short) 0x0427); 1378 addLCIDMapEntry(map, "fa", (short) 0x0429); 1379 addLCIDMapEntry(map, "vi", (short) 0x042a); 1380 addLCIDMapEntry(map, "hy", (short) 0x042b); 1381 addLCIDMapEntry(map, "eu", (short) 0x042d); 1382 addLCIDMapEntry(map, "mk", (short) 0x042f); 1383 addLCIDMapEntry(map, "tn", (short) 0x0432); 1384 addLCIDMapEntry(map, "xh", (short) 0x0434); 1385 addLCIDMapEntry(map, "zu", (short) 0x0435); 1386 addLCIDMapEntry(map, "af", (short) 0x0436); 1387 addLCIDMapEntry(map, "ka", (short) 0x0437); 1388 addLCIDMapEntry(map, "fo", (short) 0x0438); 1389 addLCIDMapEntry(map, "hi", (short) 0x0439); 1390 addLCIDMapEntry(map, "mt", (short) 0x043a); 1391 addLCIDMapEntry(map, "se", (short) 0x043b); 1392 addLCIDMapEntry(map, "gd", (short) 0x043c); 1393 addLCIDMapEntry(map, "ms", (short) 0x043e); 1394 addLCIDMapEntry(map, "kk", (short) 0x043f); 1395 addLCIDMapEntry(map, "ky", (short) 0x0440); 1396 addLCIDMapEntry(map, "sw", (short) 0x0441); 1397 addLCIDMapEntry(map, "tt", (short) 0x0444); 1398 addLCIDMapEntry(map, "bn", (short) 0x0445); 1399 addLCIDMapEntry(map, "pa", (short) 0x0446); 1400 addLCIDMapEntry(map, "gu", (short) 0x0447); 1401 addLCIDMapEntry(map, "ta", (short) 0x0449); 1402 addLCIDMapEntry(map, "te", (short) 0x044a); 1403 addLCIDMapEntry(map, "kn", (short) 0x044b); 1404 addLCIDMapEntry(map, "ml", (short) 0x044c); 1405 addLCIDMapEntry(map, "mr", (short) 0x044e); 1406 addLCIDMapEntry(map, "sa", (short) 0x044f); 1407 addLCIDMapEntry(map, "mn", (short) 0x0450); 1408 addLCIDMapEntry(map, "cy", (short) 0x0452); 1409 addLCIDMapEntry(map, "gl", (short) 0x0456); 1410 addLCIDMapEntry(map, "dv", (short) 0x0465); 1411 addLCIDMapEntry(map, "qu", (short) 0x046b); 1412 addLCIDMapEntry(map, "mi", (short) 0x0481); 1413 addLCIDMapEntry(map, "ar_IQ", (short) 0x0801); 1414 addLCIDMapEntry(map, "zh_CN", (short) 0x0804); 1415 addLCIDMapEntry(map, "de_CH", (short) 0x0807); 1416 addLCIDMapEntry(map, "en_GB", (short) 0x0809); 1417 addLCIDMapEntry(map, "es_MX", (short) 0x080a); 1418 addLCIDMapEntry(map, "fr_BE", (short) 0x080c); 1419 addLCIDMapEntry(map, "it_CH", (short) 0x0810); 1420 addLCIDMapEntry(map, "nl_BE", (short) 0x0813); 1421 addLCIDMapEntry(map, "no_NO_NY", (short) 0x0814); 1422 addLCIDMapEntry(map, "pt_PT", (short) 0x0816); 1423 addLCIDMapEntry(map, "ro_MD", (short) 0x0818); 1424 addLCIDMapEntry(map, "ru_MD", (short) 0x0819); 1425 addLCIDMapEntry(map, "sr_CS", (short) 0x081a); 1426 addLCIDMapEntry(map, "sv_FI", (short) 0x081d); 1427 addLCIDMapEntry(map, "az_AZ", (short) 0x082c); 1428 addLCIDMapEntry(map, "se_SE", (short) 0x083b); 1429 addLCIDMapEntry(map, "ga_IE", (short) 0x083c); 1430 addLCIDMapEntry(map, "ms_BN", (short) 0x083e); 1431 addLCIDMapEntry(map, "uz_UZ", (short) 0x0843); 1432 addLCIDMapEntry(map, "qu_EC", (short) 0x086b); 1433 addLCIDMapEntry(map, "ar_EG", (short) 0x0c01); 1434 addLCIDMapEntry(map, "zh_HK", (short) 0x0c04); 1435 addLCIDMapEntry(map, "de_AT", (short) 0x0c07); 1436 addLCIDMapEntry(map, "en_AU", (short) 0x0c09); 1437 addLCIDMapEntry(map, "fr_CA", (short) 0x0c0c); 1438 addLCIDMapEntry(map, "sr_CS", (short) 0x0c1a); 1439 addLCIDMapEntry(map, "se_FI", (short) 0x0c3b); 1440 addLCIDMapEntry(map, "qu_PE", (short) 0x0c6b); 1441 addLCIDMapEntry(map, "ar_LY", (short) 0x1001); 1442 addLCIDMapEntry(map, "zh_SG", (short) 0x1004); 1443 addLCIDMapEntry(map, "de_LU", (short) 0x1007); 1444 addLCIDMapEntry(map, "en_CA", (short) 0x1009); 1445 addLCIDMapEntry(map, "es_GT", (short) 0x100a); 1446 addLCIDMapEntry(map, "fr_CH", (short) 0x100c); 1447 addLCIDMapEntry(map, "hr_BA", (short) 0x101a); 1448 addLCIDMapEntry(map, "ar_DZ", (short) 0x1401); 1449 addLCIDMapEntry(map, "zh_MO", (short) 0x1404); 1450 addLCIDMapEntry(map, "de_LI", (short) 0x1407); 1451 addLCIDMapEntry(map, "en_NZ", (short) 0x1409); 1452 addLCIDMapEntry(map, "es_CR", (short) 0x140a); 1453 addLCIDMapEntry(map, "fr_LU", (short) 0x140c); 1454 addLCIDMapEntry(map, "bs_BA", (short) 0x141a); 1455 addLCIDMapEntry(map, "ar_MA", (short) 0x1801); 1456 addLCIDMapEntry(map, "en_IE", (short) 0x1809); 1457 addLCIDMapEntry(map, "es_PA", (short) 0x180a); 1458 addLCIDMapEntry(map, "fr_MC", (short) 0x180c); 1459 addLCIDMapEntry(map, "sr_BA", (short) 0x181a); 1460 addLCIDMapEntry(map, "ar_TN", (short) 0x1c01); 1461 addLCIDMapEntry(map, "en_ZA", (short) 0x1c09); 1462 addLCIDMapEntry(map, "es_DO", (short) 0x1c0a); 1463 addLCIDMapEntry(map, "sr_BA", (short) 0x1c1a); 1464 addLCIDMapEntry(map, "ar_OM", (short) 0x2001); 1465 addLCIDMapEntry(map, "en_JM", (short) 0x2009); 1466 addLCIDMapEntry(map, "es_VE", (short) 0x200a); 1467 addLCIDMapEntry(map, "ar_YE", (short) 0x2401); 1468 addLCIDMapEntry(map, "es_CO", (short) 0x240a); 1469 addLCIDMapEntry(map, "ar_SY", (short) 0x2801); 1470 addLCIDMapEntry(map, "en_BZ", (short) 0x2809); 1471 addLCIDMapEntry(map, "es_PE", (short) 0x280a); 1472 addLCIDMapEntry(map, "ar_JO", (short) 0x2c01); 1473 addLCIDMapEntry(map, "en_TT", (short) 0x2c09); 1474 addLCIDMapEntry(map, "es_AR", (short) 0x2c0a); 1475 addLCIDMapEntry(map, "ar_LB", (short) 0x3001); 1476 addLCIDMapEntry(map, "en_ZW", (short) 0x3009); 1477 addLCIDMapEntry(map, "es_EC", (short) 0x300a); 1478 addLCIDMapEntry(map, "ar_KW", (short) 0x3401); 1479 addLCIDMapEntry(map, "en_PH", (short) 0x3409); 1480 addLCIDMapEntry(map, "es_CL", (short) 0x340a); 1481 addLCIDMapEntry(map, "ar_AE", (short) 0x3801); 1482 addLCIDMapEntry(map, "es_UY", (short) 0x380a); 1483 addLCIDMapEntry(map, "ar_BH", (short) 0x3c01); 1484 addLCIDMapEntry(map, "es_PY", (short) 0x3c0a); 1485 addLCIDMapEntry(map, "ar_QA", (short) 0x4001); 1486 addLCIDMapEntry(map, "es_BO", (short) 0x400a); 1487 addLCIDMapEntry(map, "es_SV", (short) 0x440a); 1488 addLCIDMapEntry(map, "es_HN", (short) 0x480a); 1489 addLCIDMapEntry(map, "es_NI", (short) 0x4c0a); 1490 addLCIDMapEntry(map, "es_PR", (short) 0x500a); 1491 1492 lcidMap = map; 1493 } 1494 1495 private static short getLCIDFromLocale(Locale locale) { 1496 // optimize for common case 1497 if (locale.equals(Locale.US)) { 1498 return US_LCID; 1499 } 1500 1501 if (lcidMap == null) { 1502 createLCIDMap(); 1503 } 1504 1505 String key = locale.toString(); 1506 while (!"".equals(key)) { 1507 Short lcidObject = lcidMap.get(key); 1508 if (lcidObject != null) { 1509 return lcidObject.shortValue(); 1510 } 1511 int pos = key.lastIndexOf('_'); 1512 if (pos < 1) { 1513 return US_LCID; 1514 } 1515 key = key.substring(0, pos); 1516 } 1517 1518 return US_LCID; 1519 } 1520 1521 @Override 1522 public String getFamilyName(Locale locale) { 1523 if (locale == null) { 1524 return familyName; 1525 } else if (locale.equals(nameLocale) && localeFamilyName != null) { 1526 return localeFamilyName; 1527 } else { 1528 short localeID = getLCIDFromLocale(locale); 1529 String name = lookupName(localeID, FAMILY_NAME_ID); 1530 if (name == null) { 1531 return familyName; 1532 } else { 1533 return name; 1534 } 1535 } 1536 } 1537 1538 public CharToGlyphMapper getMapper() { 1539 if (mapper == null) { 1540 mapper = new TrueTypeGlyphMapper(this); 1541 } 1542 return mapper; 1543 } 1544 1545 /* This duplicates initNames() but that has to run fast as its used 1546 * during typical start-up and the information here is likely never 1547 * needed. 1548 */ 1549 protected void initAllNames(int requestedID, HashSet names) { 1550 1551 byte[] name = new byte[256]; 1552 ByteBuffer buffer = getTableBuffer(nameTag); 1553 1554 if (buffer != null) { 1555 ShortBuffer sbuffer = buffer.asShortBuffer(); 1556 sbuffer.get(); // format - not needed. 1557 short numRecords = sbuffer.get(); 1558 1559 /* The name table uses unsigned shorts. Many of these 1560 * are known small values that fit in a short. 1561 * The values that are sizes or offsets into the table could be 1562 * greater than 32767, so read and store those as ints 1563 */ 1564 int stringPtr = ((int) sbuffer.get()) & 0xffff; 1565 for (int i=0; i<numRecords; i++) { 1566 short platformID = sbuffer.get(); 1567 if (platformID != MS_PLATFORM_ID) { 1568 sbuffer.position(sbuffer.position()+5); 1569 continue; // skip over this record. 1570 } 1571 short encodingID = sbuffer.get(); 1572 short langID = sbuffer.get(); 1573 short nameID = sbuffer.get(); 1574 int nameLen = ((int) sbuffer.get()) & 0xffff; 1575 int namePtr = (((int) sbuffer.get()) & 0xffff) + stringPtr; 1576 1577 if (nameID == requestedID) { 1578 buffer.position(namePtr); 1579 buffer.get(name, 0, nameLen); 1580 names.add(makeString(name, nameLen, encodingID)); 1581 } 1582 } 1583 } 1584 } 1585 1586 String[] getAllFamilyNames() { 1587 HashSet aSet = new HashSet(); 1588 try { 1589 initAllNames(FAMILY_NAME_ID, aSet); 1590 } catch (Exception e) { 1591 /* In case of malformed font */ 1592 } 1593 return (String[])aSet.toArray(new String[0]); 1594 } 1595 1596 String[] getAllFullNames() { 1597 HashSet aSet = new HashSet(); 1598 try { 1599 initAllNames(FULL_NAME_ID, aSet); 1600 } catch (Exception e) { 1601 /* In case of malformed font */ 1602 } 1603 return (String[])aSet.toArray(new String[0]); 1604 } 1605 1606 /* Used by the OpenType engine for mark positioning. 1607 */ 1608 @Override 1609 Point2D.Float getGlyphPoint(long pScalerContext, 1610 int glyphCode, int ptNumber) { 1611 try { 1612 return getScaler().getGlyphPoint(pScalerContext, 1613 glyphCode, ptNumber); 1614 } catch(FontScalerException fe) { 1615 return null; 1616 } 1617 } 1618 1619 private char[] gaspTable; 1620 1621 private char[] getGaspTable() { 1622 1623 if (gaspTable != null) { 1624 return gaspTable; 1625 } 1626 1627 ByteBuffer buffer = getTableBuffer(gaspTag); 1628 if (buffer == null) { 1629 return gaspTable = new char[0]; 1630 } 1631 1632 CharBuffer cbuffer = buffer.asCharBuffer(); 1633 char format = cbuffer.get(); 1634 /* format "1" has appeared for some Windows Vista fonts. 1635 * Its presently undocumented but the existing values 1636 * seem to be still valid so we can use it. 1637 */ 1638 if (format > 1) { // unrecognised format 1639 return gaspTable = new char[0]; 1640 } 1641 1642 char numRanges = cbuffer.get(); 1643 if (4+numRanges*4 > getTableSize(gaspTag)) { // sanity check 1644 return gaspTable = new char[0]; 1645 } 1646 gaspTable = new char[2*numRanges]; 1647 cbuffer.get(gaspTable); 1648 return gaspTable; 1649 } 1650 1651 /* This is to obtain info from the TT 'gasp' (grid-fitting and 1652 * scan-conversion procedure) table which specifies three combinations: 1653 * Hint, Smooth (greyscale), Hint and Smooth. 1654 * In this simplified scheme we don't distinguish the latter two. We 1655 * hint even at small sizes, so as to preserve metrics consistency. 1656 * If the information isn't available default values are substituted. 1657 * The more precise defaults we'd do if we distinguished the cases are: 1658 * Bold (no other style) fonts : 1659 * 0-8 : Smooth ( do grey) 1660 * 9+ : Hint + smooth (gridfit + grey) 1661 * Plain, Italic and Bold-Italic fonts : 1662 * 0-8 : Smooth ( do grey) 1663 * 9-17 : Hint (gridfit) 1664 * 18+ : Hint + smooth (gridfit + grey) 1665 * The defaults should rarely come into play as most TT fonts provide 1666 * better defaults. 1667 * REMIND: consider unpacking the table into an array of booleans 1668 * for faster use. 1669 */ 1670 @Override 1671 public boolean useAAForPtSize(int ptsize) { 1672 1673 char[] gasp = getGaspTable(); 1674 if (gasp.length > 0) { 1675 for (int i=0;i<gasp.length;i+=2) { 1676 if (ptsize <= gasp[i]) { 1677 return ((gasp[i+1] & 0x2) != 0); // bit 2 means DO_GRAY; 1678 } 1679 } 1680 return true; 1681 } 1682 1683 if (style == Font.BOLD) { 1684 return true; 1685 } else { 1686 return ptsize <= 8 || ptsize >= 18; 1687 } 1688 } 1689 1690 @Override 1691 public boolean hasSupplementaryChars() { 1692 return ((TrueTypeGlyphMapper)getMapper()).hasSupplementaryChars(); 1693 } 1694 1695 @Override 1696 public String toString() { 1697 return "** TrueType Font: Family="+familyName+ " Name="+fullName+ 1698 " style="+style+" fileName="+getPublicFileName(); 1699 } 1700 }