| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This code is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License version 2 only, as |
| 6 | * published by the Free Software Foundation. Sun designates this |
| 7 | * particular file as subject to the "Classpath" exception as provided |
| 8 | * by Sun in the LICENSE file that accompanied this code. |
| 9 | * |
| 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| 14 | * accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License version |
| 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * |
| 28 | * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #ifndef __MORPHTABLES_H |
| 33 | #define __MORPHTABLES_H |
| 34 | |
| 35 | #include "LETypes.h" |
| 36 | #include "LayoutTables.h" |
| 37 | |
| 38 | class LEGlyphStorage; |
| 39 | |
| 40 | typedef le_uint32 FeatureFlags; |
| 41 | |
| 42 | typedef le_int16 FeatureType; |
| 43 | typedef le_int16 FeatureSetting; |
| 44 | |
| 45 | struct FeatureTableEntry |
| 46 | { |
| 47 | FeatureType featureType; |
| 48 | FeatureSetting featureSetting; |
| 49 | FeatureFlags enableFlags; |
| 50 | FeatureFlags disableFlags; |
| 51 | }; |
| 52 | |
| 53 | struct ChainHeader |
| 54 | { |
| 55 | FeatureFlags defaultFlags; |
| 56 | le_uint32 chainLength; |
| 57 | le_int16 nFeatureEntries; |
| 58 | le_int16 nSubtables; |
| 59 | FeatureTableEntry featureTable[ANY_NUMBER]; |
| 60 | }; |
| 61 | |
| 62 | struct MorphTableHeader |
| 63 | { |
| 64 | le_int32 version; |
| 65 | le_uint32 nChains; |
| 66 | ChainHeader chains[ANY_NUMBER]; |
| 67 | |
| 68 | void process(LEGlyphStorage &glyphStorage) const; |
| 69 | }; |
| 70 | |
| 71 | typedef le_int16 SubtableCoverage; |
| 72 | |
| 73 | enum SubtableCoverageFlags |
| 74 | { |
| 75 | scfVertical = 0x8000, |
| 76 | scfReverse = 0x4000, |
| 77 | scfIgnoreVt = 0x2000, |
| 78 | scfReserved = 0x1FF8, |
| 79 | scfTypeMask = 0x0007 |
| 80 | }; |
| 81 | |
| 82 | enum MorphSubtableType |
| 83 | { |
| 84 | mstIndicRearrangement = 0, |
| 85 | mstContextualGlyphSubstitution = 1, |
| 86 | mstLigatureSubstitution = 2, |
| 87 | mstReservedUnused = 3, |
| 88 | mstNonContextualGlyphSubstitution = 4, |
| 89 | mstContextualGlyphInsertion = 5 |
| 90 | }; |
| 91 | |
| 92 | struct MorphSubtableHeader |
| 93 | { |
| 94 | le_int16 length; |
| 95 | SubtableCoverage coverage; |
| 96 | FeatureFlags subtableFeatures; |
| 97 | |
| 98 | void process(LEGlyphStorage &glyphStorage) const; |
| 99 | }; |
| 100 | |
| 101 | #endif |