NeedleObject.h

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//==============================================================================================
//  FILENAME    :   NeedleObject.h
//  AUTHOR      :   Xin Liu
//  CREATION    :   3/05/09
//  Copyright (C) MicroStrategy, Inc. 2009
//==============================================================================================

#ifndef MSICHART_NEEDLEOBJECT_H
#define MSICHART_NEEDLEOBJECT_H

#include "ShapeObject.h"

namespace MsiChart
{
    class NeedleObject: public ShapeObject
    {
    public:
        typedef MSynch::SmartPtr<NeedleObject> Ptr;

        NeedleObject(const TripleId& irTripleId,                    
                        GraphObjectManager* ipManager,      // manager who create the object                
                        const Point2D& irBasePoint, Int32 iSize, float iAngle,
                        EnumDSSGraphGaugeNeedleStyle iNeedleStyle = DssGraphGaugeNeedleStyleSimple,
                        GraphCollectionObject* ipParentObject = NULL);

        virtual ~NeedleObject();
        
        //virtual functions from GraphObject
        virtual void Draw() const;
        virtual bool ObjectInRectangle(const Rect2D& irRect);
        virtual Point2D GetDataPoint();
    //  virtual void DrawOutLine();
    //  virtual bool PointInObject(const Point2D& irPoint);
    //  virtual void GenerateImageMap(ImageMap& iorImageMap);


        //pure virtual function from ShapeObject
        virtual void GetBoundingRect(Rect2D& orBoundingRect) const;         
    
    protected:
        virtual void GetClockwisePolygon(std::vector<Point2D>& orPolygon) const; 

    private:
        void hGetClockwisePolygon();

        void hGetNeedleStyle(Int32* opPointNumber, const Int32** opPoints) const;

        unsigned char hConvertToLocalNeedleStyleIndex(EnumDSSGraphGaugeNeedleStyle iNeedleStyle) const;
        
        
        //data members
        EnumDSSGraphGaugeNeedleStyle mNeedleStyle;  
        Point2D mBasePoint;             
        Int32   mSize;                  
        float   mAngle;                 
        std::vector<Point2D> mPolygon;  
        std::vector<Point<float> > mFloatPolygon;   
    };

}

#endif