1 /* 2 * %W% %E% 3 * 4 * (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved 5 * 6 */ 7 8 #ifndef __LOOKUPPROCESSOR_H 9 #define __LOOKUPPROCESSOR_H 10 11 /** 12 * \file 13 * \internal 14 */ 15 16 #include "LETypes.h" 17 #include "LEFontInstance.h" 18 #include "OpenTypeTables.h" 19 //#include "Lookups.h" 20 //#include "Features.h" 21 22 U_NAMESPACE_BEGIN 23 24 class LEFontInstance; 25 class LEGlyphStorage; 26 class GlyphIterator; 27 class GlyphPositionAdjustments; 28 struct FeatureTable; 29 struct FeatureListTable; 30 struct GlyphDefinitionTableHeader; 31 struct LookupSubtable; 32 struct LookupTable; 33 34 class LookupProcessor : public UMemory { 35 public: 36 le_int32 process(LEGlyphStorage &glyphStorage, GlyphPositionAdjustments *glyphPositionAdjustments, 37 le_bool rightToLeft, const GlyphDefinitionTableHeader *glyphDefinitionTableHeader, const LEFontInstance *fontInstance, LEErrorCode& success) const; 38 39 le_uint32 applyLookupTable(const LookupTable *lookupTable, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const; 40 41 le_uint32 applySingleLookup(le_uint16 lookupTableIndex, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const; 42 43 virtual le_uint32 applySubtable(const LookupSubtable *lookupSubtable, le_uint16 subtableType, 44 GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const = 0; 45 46 virtual ~LookupProcessor(); 47 48 protected: 49 LookupProcessor(const char *baseAddress, 50 Offset scriptListOffset, 51 Offset featureListOffset, 52 Offset lookupListOffset, 53 LETag scriptTag, 54 LETag languageTag, 55 const FeatureMap *featureMap, 56 le_int32 featureMapCount, 57 le_bool orderFeatures, 58 LEErrorCode& success); 59 60 LookupProcessor(); 61 62 le_int32 selectLookups(const FeatureTable *featureTable, FeatureMask featureMask, le_int32 order); 63 64 const LookupListTable *lookupListTable; 65 const FeatureListTable *featureListTable; 66 67 FeatureMask *lookupSelectArray; 68 69 le_uint16 *lookupOrderArray; 70 le_uint32 lookupOrderCount; 71 72 private: 73 74 LookupProcessor(const LookupProcessor &other); // forbid copying of this class 75 LookupProcessor &operator=(const LookupProcessor &other); // forbid copying of this class 76 }; 77 78 U_NAMESPACE_END 79 #endif 80