transferFunctionViewer.h

#ifndef TRANSFERFUNCTIONVIEWER_H
#define TRANSFERFUNCTIONVIEWER_H


#include <qwidget.h>
#include <qevent.h>
#include <qpainter.h>


#include "transferFunction.h"



class transferFunctionViewer : public QWidget
{
    Q_OBJECT
    
public:

    transferFunctionViewer (QWidget *parent, const char *name);
    ~transferFunctionViewer ();

    void setHistogram (unsigned int histo [256]);

    void setTransferFunction (transferFunction *transFunction);

        void setWindowing (int begin, int end);
    
public slots:

    void setCurrent (int index);
       
protected:
    void paintEvent (QPaintEvent *event);
    
private:
    void paintHistogram (QPainter *paint);
    void paintTransferFunctions (QPainter *paint);
        void paintWindowing (QPainter *paint);
        //virtual void setPaletteBackgroundColor (QColor);

    unsigned int histogram[256];
    int current;    
        bool windowing;
        int windowing_begin, windowing_end;
    transferFunction *transFunc;
    //QPainter *paint;
};

#endif // TRANSFERFUNCTIONVIEWER

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