/* * * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved * */ #ifndef __ARABICSHAPING_H #define __ARABICSHAPING_H /** * \file * \internal */ #include "LETypes.h" #include "OpenTypeTables.h" U_NAMESPACE_BEGIN class LEGlyphStorage; class ArabicShaping /* not : public UObject because all methods are static */ { public: // Joining types enum JoiningTypes { JT_NON_JOINING = 0, JT_JOIN_CAUSING = 1, JT_DUAL_JOINING = 2, JT_LEFT_JOINING = 3, JT_RIGHT_JOINING = 4, JT_TRANSPARENT = 5, JT_COUNT = 6 }; // shaping bit masks enum ShapingBitMasks { MASK_SHAPE_RIGHT = 1, // if this bit set, shapes to right MASK_SHAPE_LEFT = 2, // if this bit set, shapes to left MASK_TRANSPARENT = 4, // if this bit set, is transparent (ignore other bits) MASK_NOSHAPE = 8 // if this bit set, don't shape this char, i.e. tatweel }; // shaping values enum ShapeTypeValues { ST_NONE = 0, ST_RIGHT = MASK_SHAPE_RIGHT, ST_LEFT = MASK_SHAPE_LEFT, ST_DUAL = MASK_SHAPE_RIGHT | MASK_SHAPE_LEFT, ST_TRANSPARENT = MASK_TRANSPARENT, ST_NOSHAPE_DUAL = MASK_NOSHAPE | ST_DUAL, ST_NOSHAPE_NONE = MASK_NOSHAPE }; typedef le_int32 ShapeType; static void shape(const LEUnicode *chars, le_int32 offset, le_int32 charCount, le_int32 charMax, le_bool rightToLeft, LEGlyphStorage &glyphStorage); static const FeatureMap *getFeatureMap(le_int32 &count); private: // forbid instantiation ArabicShaping(); static ShapeType getShapeType(LEUnicode c); static const le_uint8 shapingTypeTable[]; static const size_t shapingTypeTableLen; static const ShapeType shapeTypes[]; static void adjustTags(le_int32 outIndex, le_int32 shapeOffset, LEGlyphStorage &glyphStorage); }; U_NAMESPACE_END #endif