E:/Sources Misc/ChartDemo/ChartCtrl/ChartXYSerie.h

/*
 *
 *      ChartXYSerie.h
 *
 *      Written by Cédric Moonen (cedric_moonen@hotmail.com)
 *
 *
 *
 *      This code may be used for any non-commercial and commercial purposes in a compiled form.
 *      The code may be redistributed as long as it remains unmodified and providing that the 
 *      author name and this disclaimer remain intact. The sources can be modified WITH the author 
 *      consent only.
 *      
 *      This code is provided without any garanties. I cannot be held responsible for the damage or
 *      the loss of time it causes. Use it at your own risks
 *
 *      An e-mail to notify me that you are using this code is appreciated also.
 *
 *
 */

#pragma once
#include "ChartSerieBase.h"

struct SChartXYPoint
{
        SChartXYPoint() : X(0.0), Y(0.0)  
        { 
                #ifndef NO_USER_DATA
                pUserData = NULL;
                #endif
        }
        SChartXYPoint(double XVal, double YVal) : X(XVal), Y(YVal)  
        { 
                #ifndef NO_USER_DATA
                pUserData = NULL;
                #endif
        }

        double GetX() const { return X; }
        double GetY() const { return Y; }
        double GetXMin() const { return X; }
        double GetXMax() const { return X; }
        double GetYMin() const { return Y; }
        double GetYMax() const { return Y; }

        double X;
        double Y;
        #ifndef NO_USER_DATA
        void *pUserData;
        #endif
};


class CChartXYSerie : public CChartSerieBase<SChartXYPoint>
{
public:
        CChartXYSerie(CChartCtrl* pParent);
        virtual ~CChartXYSerie();

        void AddPoint(double X, double Y);

        void AddPoints(double* pX, double* pY, unsigned Count);

        void SetPoints(double* pX, double* pY, unsigned Count);

        double GetYPointValue(unsigned PointIndex) const;
        double GetXPointValue(unsigned PointIndex) const;

        void   SetYPointValue(unsigned PointIndex, double NewVal);

        void   SetXPointValue(unsigned PointIndex, double NewVal);      
        
#ifndef NO_USER_DATA

        void  SetUserData(unsigned uPointIndex, void* pData);

        void* GetUserData(unsigned uPointIndex);
#endif

protected:

        void GetBezierControlPoints(unsigned uFirst, unsigned uLast, SChartXYPoint* &pKnots,
                                SChartXYPoint* &pFirstControlPoints, SChartXYPoint* &pSecondControlPoints) const;

private:
        double* GetFirstControlPoints(double* rhs, int Count) const;
};

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