69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
|
|
* %W% %E%
|
|
*
|
|
* (C) Copyright IBM Corp. 1998, 1999, 2000, 2001 - All Rights Reserved
|
|
*
|
|
*/
|
|
|
|
#ifndef __GLYPHITERATOR_H
|
|
#define __GLYPHITERATOR_H
|
|
|
|
#include "LETypes.h"
|
|
#include "OpenTypeTables.h"
|
|
#include "GlyphDefinitionTables.h"
|
|
#include "GlyphPositionAdjustments.h"
|
|
|
|
class GlyphIterator
|
|
{
|
|
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, 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;
|
|
|
|
LEGlyphID getCurrGlyphID() const;
|
|
le_int32 getCurrStreamPosition() const;
|
|
void getCurrGlyphPositionAdjustment(GlyphPositionAdjustment& adjustment) const;
|
|
|
|
le_int32 getMarkComponent(le_int32 markPosition) const;
|
|
|
|
void setCurrGlyphID(LEGlyphID glyphID);
|
|
void setCurrStreamPosition(le_int32 position);
|
|
void setCurrGlyphPositionAdjustment(const GlyphPositionAdjustment *adjustment);
|
|
void adjustCurrGlyphPositionAdjustment(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;
|
|
LEGlyphID *glyphs;
|
|
GlyphPositionAdjustment *glyphPositionAdjustments;
|
|
le_uint16 lookupFlags;
|
|
LETag featureTag;
|
|
const LETag **glyphTags;
|
|
const GlyphClassDefinitionTable *glyphClassDefinitionTable;
|
|
const MarkAttachClassDefinitionTable *markAttachClassDefinitionTable;
|
|
};
|
|
|
|
#endif
|