| /* |
| * %W% %E% |
| * |
| * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved |
| * |
| */ |
| |
| #ifndef __GLYPHITERATOR_H |
| #define __GLYPHITERATOR_H |
| |
| /** |
| * \file |
| * \internal |
| */ |
| |
| #include "LETypes.h" |
| #include "OpenTypeTables.h" |
| #include "GlyphDefinitionTables.h" |
| #include "GlyphPositionAdjustments.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| class GlyphIterator : public UMemory { |
| public: |
| GlyphIterator(LEGlyphID *theGlyphs, GlyphPositionAdjustment *theGlyphPositionAdjustments, le_int32 theGlyphCount, |
| le_bool rightToLeft, le_uint16 theLookupFlags, LETag theFeatureTag, const LETag *theGlyphTags[], |
| const GlyphDefinitionTableHeader *theGlyphDefinitionTableHeader); |
| |
| GlyphIterator(GlyphIterator &that); |
| |
| GlyphIterator(GlyphIterator &that, LETag newFeatureTag); |
| |
| GlyphIterator(GlyphIterator &that, le_uint16 newLookupFlags); |
| |
| ~GlyphIterator(); |
| |
| le_bool next(le_uint32 delta = 1); |
| le_bool prev(le_uint32 delta = 1); |
| le_bool findFeatureTag(); |
| |
| le_bool isRightToLeft() const; |
| le_bool ignoresMarks() const; |
| |
| le_bool baselineIsLogicalEnd() const; |
| le_bool hasCursiveFirstExitPoint() const; |
| le_bool hasCursiveLastExitPoint() const; |
| |
| LEGlyphID getCurrGlyphID() const; |
| le_int32 getCurrStreamPosition() const; |
| void getCurrGlyphPositionAdjustment(GlyphPositionAdjustment &adjustment) const; |
| |
| le_int32 getMarkComponent(le_int32 markPosition) const; |
| le_bool findMark2Glyph(); |
| |
| void getCursiveLastExitPoint(LEPoint &exitPoint) const; |
| LEGlyphID getCursiveLastGlyphID() const; |
| float getCursiveBaselineAdjustment() const; |
| void getCursiveLastPositionAdjustment(GlyphPositionAdjustment &adjustment) const; |
| |
| void setCurrGlyphID(TTGlyphID glyphID); |
| void setCurrStreamPosition(le_int32 position); |
| void setCurrGlyphPositionAdjustment(const GlyphPositionAdjustment *adjustment); |
| void setCurrGlyphBaseOffset(le_int32 baseOffset); |
| void adjustCurrGlyphPositionAdjustment(float xPlacmentAdjust, float yPlacementAdjust, |
| float xAdvanceAdjust, float yAdvanceAdjust); |
| |
| void setCursiveFirstExitPoint(); |
| void resetCursiveLastExitPoint(); |
| void setCursiveLastExitPoint(LEPoint &exitPoint); |
| void setCursiveBaselineAdjustment(float adjustment); |
| void adjustCursiveLastGlyphPositionAdjustment(float xPlacmentAdjust, float yPlacementAdjust, |
| float xAdvanceAdjust, float yAdvanceAdjust); |
| |
| private: |
| GlyphIterator(); |
| le_bool filterGlyph(le_uint32 index) const; |
| le_bool hasFeatureTag() const; |
| le_bool nextInternal(le_uint32 delta = 1); |
| le_bool prevInternal(le_uint32 delta = 1); |
| |
| le_int32 direction; |
| le_int32 position; |
| le_int32 nextLimit; |
| le_int32 prevLimit; |
| le_int32 cursiveFirstPosition; |
| le_int32 cursiveLastPosition; |
| float cursiveBaselineAdjustment; |
| LEPoint cursiveLastExitPoint; |
| LEGlyphID *glyphs; |
| GlyphPositionAdjustment *glyphPositionAdjustments; |
| le_uint16 lookupFlags; |
| LETag featureTag; |
| const LETag **glyphTags; |
| const GlyphClassDefinitionTable *glyphClassDefinitionTable; |
| const MarkAttachClassDefinitionTable *markAttachClassDefinitionTable; |
| |
| GlyphIterator &operator=(const GlyphIterator &other); // forbid copying of this class |
| }; |
| |
| U_NAMESPACE_END |
| #endif |