qt5base-lts/examples/effects/lighting/lighting.h

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#ifndef LIGHTING_H
#define LIGHTING_H

#include <QGraphicsEffect>
#include <QGraphicsView>

class Lighting: public QGraphicsView
{
    Q_OBJECT

public:
    Lighting(QWidget *parent = 0);

private slots:
    void animate();

private:
    void setupScene();

protected:
    void resizeEvent(QResizeEvent *event);

private:
    qreal angle;
    QGraphicsScene m_scene;
    QGraphicsItem *m_lightSource;
    QList<QGraphicsItem*> m_items;
};

#endif // LIGHTING_H