103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
/*
|
|
*
|
|
* (C) Copyright IBM Corp. 1998-2007 - All Rights Reserved
|
|
*
|
|
*/
|
|
|
|
#ifndef __GLYPHITERATOR_H
|
|
#define __GLYPHITERATOR_H
|
|
|
|
/**
|
|
* \file
|
|
* \internal
|
|
*/
|
|
|
|
#include "LETypes.h"
|
|
#include "OpenTypeTables.h"
|
|
#include "GlyphDefinitionTables.h"
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
class LEGlyphStorage;
|
|
class GlyphPositionAdjustments;
|
|
|
|
class GlyphIterator : public UMemory {
|
|
public:
|
|
GlyphIterator(LEGlyphStorage &theGlyphStorage, GlyphPositionAdjustments *theGlyphPositionAdjustments, le_bool rightToLeft, le_uint16 theLookupFlags,
|
|
FeatureMask theFeatureMask, const GlyphDefinitionTableHeader *theGlyphDefinitionTableHeader);
|
|
|
|
GlyphIterator(GlyphIterator &that);
|
|
|
|
GlyphIterator(GlyphIterator &that, FeatureMask newFeatureMask);
|
|
|
|
GlyphIterator(GlyphIterator &that, le_uint16 newLookupFlags);
|
|
|
|
virtual ~GlyphIterator();
|
|
|
|
void reset(le_uint16 newLookupFlags, LETag newFeatureTag);
|
|
|
|
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;
|
|
|
|
LEGlyphID getCurrGlyphID() const;
|
|
le_int32 getCurrStreamPosition() const;
|
|
|
|
le_int32 getMarkComponent(le_int32 markPosition) const;
|
|
le_bool findMark2Glyph();
|
|
|
|
void getCursiveEntryPoint(LEPoint &entryPoint) const;
|
|
void getCursiveExitPoint(LEPoint &exitPoint) const;
|
|
|
|
void setCurrGlyphID(TTGlyphID glyphID);
|
|
void setCurrStreamPosition(le_int32 position);
|
|
void setCurrGlyphBaseOffset(le_int32 baseOffset);
|
|
void adjustCurrGlyphPositionAdjustment(float xPlacementAdjust, float yPlacementAdjust,
|
|
float xAdvanceAdjust, float yAdvanceAdjust);
|
|
|
|
void setCurrGlyphPositionAdjustment(float xPlacementAdjust, float yPlacementAdjust,
|
|
float xAdvanceAdjust, float yAdvanceAdjust);
|
|
|
|
void clearCursiveEntryPoint();
|
|
void clearCursiveExitPoint();
|
|
void setCursiveEntryPoint(LEPoint &entryPoint);
|
|
void setCursiveExitPoint(LEPoint &exitPoint);
|
|
void setCursiveGlyph();
|
|
|
|
LEGlyphID *insertGlyphs(le_int32 count);
|
|
le_int32 applyInsertions();
|
|
|
|
private:
|
|
le_bool filterGlyph(le_uint32 index) const;
|
|
le_bool hasFeatureTag(le_bool matchGroup) 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;
|
|
|
|
LEGlyphStorage &glyphStorage;
|
|
GlyphPositionAdjustments *glyphPositionAdjustments;
|
|
|
|
le_int32 srcIndex;
|
|
le_int32 destIndex;
|
|
le_uint16 lookupFlags;
|
|
FeatureMask featureMask;
|
|
le_int32 glyphGroup;
|
|
|
|
const GlyphClassDefinitionTable *glyphClassDefinitionTable;
|
|
const MarkAttachClassDefinitionTable *markAttachClassDefinitionTable;
|
|
|
|
GlyphIterator &operator=(const GlyphIterator &other); // forbid copying of this class
|
|
};
|
|
|
|
U_NAMESPACE_END
|
|
#endif
|