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00009 #ifndef __INDICLAYOUTENGINE_H
00010 #define __INDICLAYOUTENGINE_H
00011
00012 #include "LETypes.h"
00013 #include "LEFontInstance.h"
00014 #include "LEGlyphFilter.h"
00015 #include "LayoutEngine.h"
00016 #include "OpenTypeLayoutEngine.h"
00017
00018 #include "GlyphSubstitutionTables.h"
00019 #include "GlyphDefinitionTables.h"
00020 #include "GlyphPositioningTables.h"
00021
00022 #include <string.h>
00023
00024 U_NAMESPACE_BEGIN
00025
00026 class MPreFixups;
00027
00039 class IndicOpenTypeLayoutEngine : public OpenTypeLayoutEngine
00040 {
00041 public:
00059 IndicOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode,
00060 const GlyphSubstitutionTableHeader *gsubTable);
00061
00075 IndicOpenTypeLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode);
00076
00082 virtual ~IndicOpenTypeLayoutEngine();
00083
00089 virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
00090
00096 static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
00097
00098 protected:
00099
00123 virtual le_int32 characterProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
00124 LEUnicode *&outChars, le_int32 *&charIndices, const LETag **&featureTags, LEErrorCode &success);
00125
00155 virtual le_int32 glyphProcessing(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft,
00156 const LETag **&featureTags, LEGlyphID *&glyphs, le_int32 *&charIndices, LEErrorCode &success);
00157
00158 private:
00159
00164 static const char fgClassID;
00165
00166 MPreFixups *fMPreFixups;
00167 };
00168
00169 U_NAMESPACE_END
00170 #endif
00171