lighting.h Example File

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