Tickmarks.hxx

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#pragma once
 
#include <chartview/ExplicitScaleValues.hxx>
#include <basegfx/vector/b2dvector.hxx>
#include <com/sun/star/drawing/PointSequenceSequence.hpp>
#include <rtl/ref.hxx>
#include <svx/unoshape.hxx>
#include <vector>
 
namespace chart { struct AxisProperties; }
namespace chart { struct TickmarkProperties; }
namespace com::sun::star::chart2 { class XScaling; }
namespace com::sun::star::drawing { class XShape; }
 
namespace chart {
 
struct TickInfo
{
    double      fScaledTickValue;
    css::uno::Reference<css::chart2::XScaling> xInverseScaling;
    rtl::Reference<SvxShapeText> xTextShape;
    OUString aText;//used only for complex categories so far
    ::basegfx::B2DVector  aTickScreenPosition;
    sal_Int32 nFactorForLimitedTextWidth;//categories in higher levels of complex categories can have more place than a single simple category
    bool        bPaintIt;
 
//methods:
    TickInfo() = delete;
    explicit TickInfo( css::uno::Reference<css::chart2::XScaling> xInverse );
 
    double getUnscaledTickValue() const;
    sal_Int32 getScreenDistanceBetweenTicks( const TickInfo& rOherTickInfo ) const;
};
 
typedef std::vector<TickInfo>           TickInfoArrayType;
typedef std::vector<TickInfoArrayType>  TickInfoArraysType;
 
class TickIter
{
public:
    virtual ~TickIter() {}
    virtual TickInfo* firstInfo() = 0;
    virtual TickInfo* nextInfo() = 0;
};
 
class PureTickIter : public TickIter
{
public:
    explicit PureTickIter( TickInfoArrayType& rTickInfoVector );
    virtual ~PureTickIter() override;
    virtual TickInfo* firstInfo() override;
    virtual TickInfo* nextInfo() override;
 
private:
    TickInfoArrayType& m_rTickVector;
    TickInfoArrayType::iterator m_aTickIter;
};
 
class TickFactory
{
public:
    TickFactory(
         ExplicitScaleData aScale
        , ExplicitIncrementData aIncrement );
    virtual ~TickFactory();
 
    void getAllTicks( TickInfoArraysType& rAllTickInfos ) const;
    void getAllTicksShifted( TickInfoArraysType& rAllTickInfos ) const;
 
private: //methods
    bool        isDateAxis() const;
 
protected: //member
    ExplicitScaleData     m_rScale;
    ExplicitIncrementData m_rIncrement;
    css::uno::Reference< css::chart2::XScaling > m_xInverseScaling;
 
    //minimum and maximum of the visible range after scaling
    double    m_fScaledVisibleMin;
    double    m_fScaledVisibleMax;
};
 
class TickFactory2D final : public TickFactory
{
public:
    TickFactory2D(
        const ExplicitScaleData& rScale
        , const ExplicitIncrementData& rIncrement
        , const ::basegfx::B2DVector& rStartScreenPos, const ::basegfx::B2DVector& rEndScreenPos
        , const ::basegfx::B2DVector& rAxisLineToLabelLineShift );
 
    virtual ~TickFactory2D() override;
 
    static sal_Int32    getTickScreenDistance( TickIter& rIter );
 
    void createPointSequenceForAxisMainLine( css::drawing::PointSequenceSequence& rPoints ) const;
    void addPointSequenceForTickLine( css::drawing::PointSequenceSequence& rPoints
                            , sal_Int32 nSequenceIndex
                            , double fScaledLogicTickValue, double fInnerDirectionSign
                            , const TickmarkProperties& rTickmarkProperties, bool bPlaceAtLabels ) const;
    ::basegfx::B2DVector  getDistanceAxisTickToText( const AxisProperties& rAxisProperties
        , bool bIncludeFarAwayDistanceIfSo = false
        , bool bIncludeSpaceBetweenTickAndText = true ) const;
 
    void updateScreenValues( TickInfoArraysType& rAllTickInfos ) const;
 
    bool  isHorizontalAxis() const;
    bool  isVerticalAxis() const;
 
    const ::basegfx::B2DVector & getXaxisStartPos() const
    {
        return m_aAxisStartScreenPosition2D;
    }
 
    const ::basegfx::B2DVector & getXaxisEndPos() const
    {
        return m_aAxisEndScreenPosition2D;
    }
 
private:
    ::basegfx::B2DVector     getTickScreenPosition2D( double fScaledLogicTickValue ) const;
 
    ::basegfx::B2DVector    m_aAxisStartScreenPosition2D;
    ::basegfx::B2DVector    m_aAxisEndScreenPosition2D;
 
    //labels might be positioned high or low on the border of the diagram far away from the axis
    //add this vector to go from the axis line to the label line (border of the diagram)
    ::basegfx::B2DVector    m_aAxisLineToLabelLineShift;
 
    double      m_fStretch_LogicToScreen;
    double      m_fOffset_LogicToScreen;
};
 
} //namespace chart
 
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