E:/3pg/Studium/TU Wien/08 09 Wintersemester/Visualisierung/Aufgabe2/src_doxygen/Layer.h

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#ifndef H_LAYER
#define H_LAYER

#include <QObject>
#include <QImage>

#include "FlowData.h"

struct DrawInfo
{
        QPainter *painter;
        QRectF targetRect;
        QRectF sourceRect;
        QRectF rangeRect;
};

/*
        TODO:
                - set Qt::WA_OpaquePaintEvent and make opaque drawing self (optimizing)
*/
class Layer : public QObject
{
        Q_OBJECT

public:
        Layer();
        ~Layer();

        virtual void setWidget(QWidget *widget) = 0;

        bool getVisibility();
        float getOpacity();

        virtual void draw(const DrawInfo &drawInfo) = 0;

public slots:
        virtual void setFlowData(FlowData *flowData);
        virtual void setSize(const QSize &size);
        void setOpacity(float value);
        void setVisibility(bool visible);

signals:
        void layerChanged(Layer*);

protected:
        FlowData *flowData;
        QSize size;
        float opacity;
        bool visible;
};

#endif // H_LAYER

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