1 /* 2 * 3 * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved 4 * 5 */ 6 7 #ifndef __LIGATURESUBSTITUTIONPROCESSOR_H 8 #define __LIGATURESUBSTITUTIONPROCESSOR_H 9 10 /** 11 * \file 12 * \internal 13 */ 14 15 #include "LETypes.h" 16 #include "MorphTables.h" 17 #include "SubtableProcessor.h" 18 #include "StateTableProcessor.h" 19 #include "LigatureSubstitution.h" 20 21 U_NAMESPACE_BEGIN 22 23 class LEGlyphStorage; 24 25 #define nComponents 16 26 27 class LigatureSubstitutionProcessor : public StateTableProcessor 28 { 29 public: 30 virtual void beginStateTable(); 31 32 virtual ByteOffset processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index); 33 34 virtual void endStateTable(); 35 36 LigatureSubstitutionProcessor(const MorphSubtableHeader *morphSubtableHeader); 37 virtual ~LigatureSubstitutionProcessor(); 38 39 /** 40 * ICU "poor man's RTTI", returns a UClassID for the actual class. 41 * 42 * @stable ICU 2.8 43 */ 44 virtual UClassID getDynamicClassID() const; 45 46 /** 47 * ICU "poor man's RTTI", returns a UClassID for this class. 48 * 49 * @stable ICU 2.8 50 */ 51 static UClassID getStaticClassID(); 52 53 private: 54 LigatureSubstitutionProcessor(); 55 56 protected: 57 ByteOffset ligatureActionTableOffset; 58 ByteOffset componentTableOffset; 59 ByteOffset ligatureTableOffset; 60 61 const LigatureSubstitutionStateEntry *entryTable; 62 63 le_int32 componentStack[nComponents]; 64 le_int16 m; 65 66 const LigatureSubstitutionHeader *ligatureSubstitutionHeader; 67 68 }; 69 70 U_NAMESPACE_END 71 #endif 72
