C:/Documents and Settings/benesova/Plocha/FlowVis/vislab2/transferControlWidget.h

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#ifndef __TRANSFER_CONTROL_WIDGET__
#define __TRANSFER_CONTROL_WIDGET__

#include <QtGui/QWidget>

#include "colorSelectionWidget.h"
#include "transferFunctionDisplayWidget.h"

class TransferControlWidget : public QWidget
{
        Q_OBJECT

public:
        TransferControlWidget(QWidget *parent = 0, Histogram *histogram = NULL);
        ~TransferControlWidget();

        QSize minimumSizeHint() const;
        QSize sizeHint() const;

        void setDensityHistogram(Histogram *histogram);

        GLuint getTexture();

        void saveTransferFunction(FILE *fp);
        void loadTransferFunction(FILE *fp);

        static int getWidth() {return max(ColorSelectionWidget::getWidth(), TransferFunctionDisplayWidget::getWidth()) + spacing;}
        static int getHeight() {return ColorSelectionWidget::getHeight() + TransferFunctionDisplayWidget::getHeight() + spacing;}

public slots:
        void newTransferFunctionGenerated();

signals:
        void transferFunctionChanged();

private:
        bool oldTextureExists;
        GLuint textureId;

        void generateTexture();

        ColorSelectionWidget *colorSelect;                              
        TransferFunctionDisplayWidget *functionDisplay; 

        static const int spacing;
};

#endif

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