sl@0: /*
sl@0:  *
sl@0:  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
sl@0:  *
sl@0:  */
sl@0: 
sl@0: #ifndef __LIGATURESUBSTITUTIONPROCESSOR_H
sl@0: #define __LIGATURESUBSTITUTIONPROCESSOR_H
sl@0: 
sl@0: /**
sl@0:  * \file
sl@0:  * \internal
sl@0:  */
sl@0: 
sl@0: #include "LETypes.h"
sl@0: #include "MorphTables.h"
sl@0: #include "SubtableProcessor.h"
sl@0: #include "StateTableProcessor.h"
sl@0: #include "LigatureSubstitution.h"
sl@0: 
sl@0: U_NAMESPACE_BEGIN
sl@0: 
sl@0: class LEGlyphStorage;
sl@0: 
sl@0: #define nComponents 16
sl@0: 
sl@0: class LigatureSubstitutionProcessor : public StateTableProcessor
sl@0: {
sl@0: public:
sl@0:     virtual void beginStateTable();
sl@0: 
sl@0:     virtual ByteOffset processStateEntry(LEGlyphStorage &glyphStorage, le_int32 &currGlyph, EntryTableIndex index);
sl@0: 
sl@0:     virtual void endStateTable();
sl@0: 
sl@0:     LigatureSubstitutionProcessor(const MorphSubtableHeader *morphSubtableHeader);
sl@0:     virtual ~LigatureSubstitutionProcessor();
sl@0: 
sl@0:     /**
sl@0:      * ICU "poor man's RTTI", returns a UClassID for the actual class.
sl@0:      *
sl@0:      * @stable ICU 2.8
sl@0:      */
sl@0:     virtual UClassID getDynamicClassID() const;
sl@0: 
sl@0:     /**
sl@0:      * ICU "poor man's RTTI", returns a UClassID for this class.
sl@0:      *
sl@0:      * @stable ICU 2.8
sl@0:      */
sl@0:     static UClassID getStaticClassID();
sl@0: 
sl@0: private:
sl@0:     LigatureSubstitutionProcessor();
sl@0: 
sl@0: protected:
sl@0:     ByteOffset ligatureActionTableOffset;
sl@0:     ByteOffset componentTableOffset;
sl@0:     ByteOffset ligatureTableOffset;
sl@0: 
sl@0:     const LigatureSubstitutionStateEntry *entryTable;
sl@0: 
sl@0:     le_int32 componentStack[nComponents];
sl@0:     le_int16 m;
sl@0: 
sl@0:     const LigatureSubstitutionHeader *ligatureSubstitutionHeader;
sl@0: 
sl@0: };
sl@0: 
sl@0: U_NAMESPACE_END
sl@0: #endif