363 lines
10 KiB
C++
363 lines
10 KiB
C++
/*
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*
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* (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
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*
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*/
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#ifndef __GLYPHPOSITIONADJUSTMENTS_H
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#define __GLYPHPOSITIONADJUSTMENTS_H
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/**
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* \file
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* \internal
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*/
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#include "LETypes.h"
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#include "OpenTypeTables.h"
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U_NAMESPACE_BEGIN
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class LEGlyphStorage;
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class LEFontInstance;
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class GlyphPositionAdjustments : public UMemory
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{
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private:
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class Adjustment : public UMemory {
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public:
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inline Adjustment();
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inline Adjustment(float xPlace, float yPlace, float xAdv, float yAdv, le_int32 baseOff = -1);
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inline ~Adjustment();
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inline float getXPlacement() const;
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inline float getYPlacement() const;
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inline float getXAdvance() const;
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inline float getYAdvance() const;
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inline le_int32 getBaseOffset() const;
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inline void setXPlacement(float newXPlacement);
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inline void setYPlacement(float newYPlacement);
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inline void setXAdvance(float newXAdvance);
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inline void setYAdvance(float newYAdvance);
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inline void setBaseOffset(le_int32 newBaseOffset);
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inline void adjustXPlacement(float xAdjustment);
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inline void adjustYPlacement(float yAdjustment);
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inline void adjustXAdvance(float xAdjustment);
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inline void adjustYAdvance(float yAdjustment);
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private:
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float xPlacement;
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float yPlacement;
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float xAdvance;
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float yAdvance;
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le_int32 baseOffset;
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// allow copying of this class because all of its fields are simple types
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};
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class EntryExitPoint : public UMemory
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{
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public:
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inline EntryExitPoint();
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inline ~EntryExitPoint();
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inline le_bool isCursiveGlyph() const;
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inline le_bool baselineIsLogicalEnd() const;
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LEPoint *getEntryPoint(LEPoint &entryPoint) const;
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LEPoint *getExitPoint(LEPoint &exitPoint) const;
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inline void setEntryPoint(LEPoint &newEntryPoint, le_bool baselineIsLogicalEnd);
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inline void setExitPoint(LEPoint &newExitPoint, le_bool baselineIsLogicalEnd);
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inline void setCursiveGlyph(le_bool baselineIsLogicalEnd);
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private:
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enum EntryExitFlags
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{
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EEF_HAS_ENTRY_POINT = 0x80000000L,
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EEF_HAS_EXIT_POINT = 0x40000000L,
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EEF_IS_CURSIVE_GLYPH = 0x20000000L,
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EEF_BASELINE_IS_LOGICAL_END = 0x10000000L
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};
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le_uint32 fFlags;
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LEPoint fEntryPoint;
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LEPoint fExitPoint;
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};
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le_int32 fGlyphCount;
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EntryExitPoint *fEntryExitPoints;
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Adjustment *fAdjustments;
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GlyphPositionAdjustments();
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public:
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GlyphPositionAdjustments(le_int32 glyphCount);
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~GlyphPositionAdjustments();
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inline le_bool hasCursiveGlyphs() const;
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inline le_bool isCursiveGlyph(le_int32 index) const;
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inline le_bool baselineIsLogicalEnd(le_int32 index) const;
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const LEPoint *getEntryPoint(le_int32 index, LEPoint &entryPoint) const;
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const LEPoint *getExitPoint(le_int32 index, LEPoint &exitPoint) const;
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inline float getXPlacement(le_int32 index) const;
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inline float getYPlacement(le_int32 index) const;
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inline float getXAdvance(le_int32 index) const;
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inline float getYAdvance(le_int32 index) const;
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inline le_int32 getBaseOffset(le_int32 index) const;
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inline void setXPlacement(le_int32 index, float newXPlacement);
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inline void setYPlacement(le_int32 index, float newYPlacement);
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inline void setXAdvance(le_int32 index, float newXAdvance);
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inline void setYAdvance(le_int32 index, float newYAdvance);
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inline void setBaseOffset(le_int32 index, le_int32 newBaseOffset);
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inline void adjustXPlacement(le_int32 index, float xAdjustment);
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inline void adjustYPlacement(le_int32 index, float yAdjustment);
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inline void adjustXAdvance(le_int32 index, float xAdjustment);
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inline void adjustYAdvance(le_int32 index, float yAdjustment);
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void setEntryPoint(le_int32 index, LEPoint &newEntryPoint, le_bool baselineIsLogicalEnd);
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void setExitPoint(le_int32 index, LEPoint &newExitPoint, le_bool baselineIsLogicalEnd);
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void setCursiveGlyph(le_int32 index, le_bool baselineIsLogicalEnd);
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void applyCursiveAdjustments(LEGlyphStorage &glyphStorage, le_bool rightToLeft, const LEFontInstance *fontInstance);
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};
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inline GlyphPositionAdjustments::Adjustment::Adjustment()
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: xPlacement(0), yPlacement(0), xAdvance(0), yAdvance(0), baseOffset(-1)
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{
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// nothing else to do!
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}
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inline GlyphPositionAdjustments::Adjustment::Adjustment(float xPlace, float yPlace, float xAdv, float yAdv, le_int32 baseOff)
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: xPlacement(xPlace), yPlacement(yPlace), xAdvance(xAdv), yAdvance(yAdv), baseOffset(baseOff)
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{
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// nothing else to do!
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}
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inline GlyphPositionAdjustments::Adjustment::~Adjustment()
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{
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// nothing to do!
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}
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inline float GlyphPositionAdjustments::Adjustment::getXPlacement() const
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{
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return xPlacement;
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}
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inline float GlyphPositionAdjustments::Adjustment::getYPlacement() const
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{
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return yPlacement;
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}
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inline float GlyphPositionAdjustments::Adjustment::getXAdvance() const
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{
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return xAdvance;
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}
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inline float GlyphPositionAdjustments::Adjustment::getYAdvance() const
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{
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return yAdvance;
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}
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inline le_int32 GlyphPositionAdjustments::Adjustment::getBaseOffset() const
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{
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return baseOffset;
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}
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inline void GlyphPositionAdjustments::Adjustment::setXPlacement(float newXPlacement)
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{
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xPlacement = newXPlacement;
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}
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inline void GlyphPositionAdjustments::Adjustment::setYPlacement(float newYPlacement)
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{
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yPlacement = newYPlacement;
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}
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inline void GlyphPositionAdjustments::Adjustment::setXAdvance(float newXAdvance)
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{
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xAdvance = newXAdvance;
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}
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inline void GlyphPositionAdjustments::Adjustment::setYAdvance(float newYAdvance)
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{
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yAdvance = newYAdvance;
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}
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inline void GlyphPositionAdjustments::Adjustment::setBaseOffset(le_int32 newBaseOffset)
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{
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baseOffset = newBaseOffset;
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}
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inline void GlyphPositionAdjustments::Adjustment::adjustXPlacement(float xAdjustment)
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{
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xPlacement += xAdjustment;
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}
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inline void GlyphPositionAdjustments::Adjustment::adjustYPlacement(float yAdjustment)
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{
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yPlacement += yAdjustment;
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}
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inline void GlyphPositionAdjustments::Adjustment::adjustXAdvance(float xAdjustment)
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{
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xAdvance += xAdjustment;
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}
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inline void GlyphPositionAdjustments::Adjustment::adjustYAdvance(float yAdjustment)
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{
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yAdvance += yAdjustment;
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}
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inline GlyphPositionAdjustments::EntryExitPoint::EntryExitPoint()
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: fFlags(0)
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{
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fEntryPoint.fX = fEntryPoint.fY = fExitPoint.fX = fExitPoint.fY = 0;
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}
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inline GlyphPositionAdjustments::EntryExitPoint::~EntryExitPoint()
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{
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// nothing special to do
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}
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inline le_bool GlyphPositionAdjustments::EntryExitPoint::isCursiveGlyph() const
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{
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return (fFlags & EEF_IS_CURSIVE_GLYPH) != 0;
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}
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inline le_bool GlyphPositionAdjustments::EntryExitPoint::baselineIsLogicalEnd() const
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{
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return (fFlags & EEF_BASELINE_IS_LOGICAL_END) != 0;
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}
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inline void GlyphPositionAdjustments::EntryExitPoint::setEntryPoint(LEPoint &newEntryPoint, le_bool baselineIsLogicalEnd)
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{
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if (baselineIsLogicalEnd) {
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fFlags |= (EEF_HAS_ENTRY_POINT | EEF_IS_CURSIVE_GLYPH | EEF_BASELINE_IS_LOGICAL_END);
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} else {
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fFlags |= (EEF_HAS_ENTRY_POINT | EEF_IS_CURSIVE_GLYPH);
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}
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fEntryPoint = newEntryPoint;
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}
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inline void GlyphPositionAdjustments::EntryExitPoint::setExitPoint(LEPoint &newExitPoint, le_bool baselineIsLogicalEnd)
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{
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if (baselineIsLogicalEnd) {
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fFlags |= (EEF_HAS_EXIT_POINT | EEF_IS_CURSIVE_GLYPH | EEF_BASELINE_IS_LOGICAL_END);
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} else {
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fFlags |= (EEF_HAS_EXIT_POINT | EEF_IS_CURSIVE_GLYPH);
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}
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fExitPoint = newExitPoint;
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}
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inline void GlyphPositionAdjustments::EntryExitPoint::setCursiveGlyph(le_bool baselineIsLogicalEnd)
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{
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if (baselineIsLogicalEnd) {
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fFlags |= (EEF_IS_CURSIVE_GLYPH | EEF_BASELINE_IS_LOGICAL_END);
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} else {
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fFlags |= EEF_IS_CURSIVE_GLYPH;
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}
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}
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inline le_bool GlyphPositionAdjustments::isCursiveGlyph(le_int32 index) const
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{
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return fEntryExitPoints != NULL && fEntryExitPoints[index].isCursiveGlyph();
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}
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inline le_bool GlyphPositionAdjustments::baselineIsLogicalEnd(le_int32 index) const
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{
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return fEntryExitPoints != NULL && fEntryExitPoints[index].baselineIsLogicalEnd();
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}
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inline float GlyphPositionAdjustments::getXPlacement(le_int32 index) const
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{
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return fAdjustments[index].getXPlacement();
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}
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inline float GlyphPositionAdjustments::getYPlacement(le_int32 index) const
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{
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return fAdjustments[index].getYPlacement();
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}
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inline float GlyphPositionAdjustments::getXAdvance(le_int32 index) const
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{
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return fAdjustments[index].getXAdvance();
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}
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inline float GlyphPositionAdjustments::getYAdvance(le_int32 index) const
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{
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return fAdjustments[index].getYAdvance();
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}
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inline le_int32 GlyphPositionAdjustments::getBaseOffset(le_int32 index) const
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{
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return fAdjustments[index].getBaseOffset();
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}
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inline void GlyphPositionAdjustments::setXPlacement(le_int32 index, float newXPlacement)
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{
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fAdjustments[index].setXPlacement(newXPlacement);
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}
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inline void GlyphPositionAdjustments::setYPlacement(le_int32 index, float newYPlacement)
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{
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fAdjustments[index].setYPlacement(newYPlacement);
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}
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inline void GlyphPositionAdjustments::setXAdvance(le_int32 index, float newXAdvance)
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{
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fAdjustments[index].setXAdvance(newXAdvance);
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}
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inline void GlyphPositionAdjustments::setYAdvance(le_int32 index, float newYAdvance)
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{
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fAdjustments[index].setYAdvance(newYAdvance);
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}
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inline void GlyphPositionAdjustments::setBaseOffset(le_int32 index, le_int32 newBaseOffset)
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{
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fAdjustments[index].setBaseOffset(newBaseOffset);
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}
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inline void GlyphPositionAdjustments::adjustXPlacement(le_int32 index, float xAdjustment)
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{
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fAdjustments[index].adjustXPlacement(xAdjustment);
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}
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inline void GlyphPositionAdjustments::adjustYPlacement(le_int32 index, float yAdjustment)
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{
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fAdjustments[index].adjustYPlacement(yAdjustment);
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}
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inline void GlyphPositionAdjustments::adjustXAdvance(le_int32 index, float xAdjustment)
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{
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fAdjustments[index].adjustXAdvance(xAdjustment);
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}
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inline void GlyphPositionAdjustments::adjustYAdvance(le_int32 index, float yAdjustment)
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{
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fAdjustments[index].adjustYAdvance(yAdjustment);
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}
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inline le_bool GlyphPositionAdjustments::hasCursiveGlyphs() const
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{
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return fEntryExitPoints != NULL;
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}
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U_NAMESPACE_END
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#endif
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