projects / apple / icu.git / blame
| Commit | Line | Data |
|---|---|---|
| b75a7d8f | 1 | /* |
| b75a7d8f | 2 | * |
| 57a6839d | 3 | * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved |
| b75a7d8f A |
4 | * |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef __LOOKUPS_H | |
| 8 | #define __LOOKUPS_H | |
| 9 | ||
| 10 | /** | |
| 11 | * \file | |
| 12 | * \internal | |
| 13 | */ | |
| 14 | ||
| 15 | #include "LETypes.h" | |
| 16 | #include "OpenTypeTables.h" | |
| 17 | ||
| 18 | U_NAMESPACE_BEGIN | |
| 19 | ||
| 20 | enum LookupFlags | |
| 21 | { | |
| 22 | lfBaselineIsLogicalEnd = 0x0001, // The MS spec. calls this flag "RightToLeft" but this name is more accurate | |
| 23 | lfIgnoreBaseGlyphs = 0x0002, | |
| 24 | lfIgnoreLigatures = 0x0004, | |
| 25 | lfIgnoreMarks = 0x0008, | |
| 26 | lfReservedMask = 0x00F0, | |
| 27 | lfMarkAttachTypeMask = 0xFF00, | |
| 28 | lfMarkAttachTypeShift = 8 | |
| 29 | }; | |
| 30 | ||
| 31 | struct LookupSubtable | |
| 32 | { | |
| 33 | le_uint16 subtableFormat; | |
| 34 | Offset coverageTableOffset; | |
| 35 | ||
| 57a6839d | 36 | inline le_int32 getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, LEGlyphID glyphID, LEErrorCode &success) const; |
| 73c04bcf | 37 | |
| 57a6839d A |
38 | le_int32 getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const; |
| 39 | ||
| 40 | // convenience | |
| 41 | inline le_int32 getGlyphCoverage(const LETableReference &base, LEGlyphID glyphID, LEErrorCode &success) const; | |
| 42 | ||
| 43 | inline le_int32 getGlyphCoverage(const LETableReference &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const; | |
| b75a7d8f A |
44 | }; |
| 45 | ||
| 46 | struct LookupTable | |
| 47 | { | |
| 48 | le_uint16 lookupType; | |
| 49 | le_uint16 lookupFlags; | |
| 50 | le_uint16 subTableCount; | |
| 51 | Offset subTableOffsetArray[ANY_NUMBER]; | |
| 52 | ||
| 57a6839d | 53 | const LEReferenceTo<LookupSubtable> getLookupSubtable(const LEReferenceTo<LookupTable> &base, le_uint16 subtableIndex, LEErrorCode &success) const; |
| b75a7d8f | 54 | }; |
| 57a6839d | 55 | LE_VAR_ARRAY(LookupTable, subTableOffsetArray) |
| b75a7d8f A |
56 | |
| 57 | struct LookupListTable | |
| 58 | { | |
| 59 | le_uint16 lookupCount; | |
| 60 | Offset lookupTableOffsetArray[ANY_NUMBER]; | |
| 61 | ||
| 57a6839d | 62 | const LEReferenceTo<LookupTable> getLookupTable(const LEReferenceTo<LookupListTable> &base, le_uint16 lookupTableIndex, LEErrorCode &success) const; |
| b75a7d8f | 63 | }; |
| 57a6839d | 64 | LE_VAR_ARRAY(LookupListTable, lookupTableOffsetArray) |
| b75a7d8f | 65 | |
| 57a6839d | 66 | inline le_int32 LookupSubtable::getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, LEGlyphID glyphID, LEErrorCode &success) const |
| b75a7d8f | 67 | { |
| 57a6839d A |
68 | return getGlyphCoverage(base, coverageTableOffset, glyphID, success); |
| 69 | } | |
| 70 | ||
| 71 | inline le_int32 LookupSubtable::getGlyphCoverage(const LETableReference &base, LEGlyphID glyphID, LEErrorCode &success) const { | |
| 72 | LEReferenceTo<LookupSubtable> thisRef(base, success, this); | |
| 73 | return getGlyphCoverage(thisRef, glyphID, success); | |
| 74 | } | |
| 75 | ||
| 76 | inline le_int32 LookupSubtable::getGlyphCoverage(const LETableReference &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const { | |
| 77 | LEReferenceTo<LookupSubtable> thisRef(base, success, this); | |
| 78 | return getGlyphCoverage(thisRef, tableOffset, glyphID, success); | |
| b75a7d8f A |
79 | } |
| 80 | ||
| 81 | U_NAMESPACE_END | |
| 82 | #endif |