T:/Eigene Dateien/Visual Studio 2008/Projects/VisLuFramework/src/HistogramDraw.h

#ifndef HISTOGRAM_DRAW_H
#define HISTOGRAM_DRAW_H

#include <vector>

class Volume;

enum HistogramDrawType
{
        HISTOGRAM_DRAW_NONE,
        HISTOGRAM_DRAW_LINEAR,
        HISTOGRAM_DRAW_LOG
};
class HistogramDraw
{
public:
        static HistogramDraw* getInstance();

        void refreshHistogramDrawData(Volume& volume);

        void calculateLogarithmicHistogramData();
        void rescaleHistogramDataToHighestValue( std::vector<double> &normalizedHistogramData );
        void draw();
        void setDrawType(HistogramDrawType drawType);


private: 
        HistogramDraw();
        ~HistogramDraw();
        HistogramDraw(const HistogramDraw &);
        HistogramDraw & operator=(const HistogramDraw &);



        static HistogramDraw*   _instance;
        static bool                             initialized;
        
        
        HistogramDrawType               m_HistogramDrawType;
        float*                                  m_HistogramData;
        float*                                  m_HistogramDataLogarithmic;
        int                                             m_HistogramDataSize;
};



#endif