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HanLayoutEngine.h

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00001 
00002 /*
00003  * HanLayoutEngine.h: OpenType processing for Han fonts.
00004  *
00005  * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved.
00006  *
00007  * $Source: /usr/cvs/icu/icu/source/layout/HanLayoutEngine.h,v $ $Date: 2003/06/10 17:44:58 $ $Revision: 1.3 $
00008  */
00009 
00010 #ifndef __HANLAYOUTENGINE_H
00011 #define __HANLAYOUTENGINE_H
00012 
00013 #include "LETypes.h"
00014 #include "LEFontInstance.h"
00015 #include "LayoutEngine.h"
00016 #include "OpenTypeLayoutEngine.h"
00017 
00018 #include "GlyphSubstitutionTables.h"
00019 
00020 U_NAMESPACE_BEGIN
00021 
00029 class HanOpenTypeLayoutEngine : public OpenTypeLayoutEngine
00030 {
00031 public:
00049     HanOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode,
00050                             const GlyphSubstitutionTableHeader *gsubTable);
00051 
00052 
00058     virtual ~HanOpenTypeLayoutEngine();
00059 
00065     virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
00066 
00072     static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
00073 
00074 protected:
00075 
00097     virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
00098             LEUnicode *&outChars, le_int32 *&charIndices, const LETag **&featureTags, LEErrorCode &success);
00099 
00100 
00101 private:
00102 
00107     static const char fgClassID;
00108 };
00109 
00110 U_NAMESPACE_END
00111 #endif

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