graphicsscene.h

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#ifndef GRAPHICSSCENE_H
#define GRAPHICSSCENE_H

#include <QGraphicsScene>

class GraphicsScene : public QGraphicsScene {
  bool m_overlay;
  QPen m_overlayPen;
  QPointF m_overlayPos;

public:
  explicit GraphicsScene( QObject *parent = 0 );
  void setOverlay( bool overlay );
  void setOverlayPen( const QPen &overlayPen );
  void setOverlayPos( QPointF pos );
  bool overlay( ) const;
  QPointF overlayPos( ) const;

protected:
  void drawForeground( QPainter *painter, const QRectF &rect );
};

#endif /* GRAPHICSSCENE_H */