class KisShapeLayer : public KisExternalLayer, public KoShapeLayer
{
    Q_OBJECT

public:

    KisShapeLayer( KoShapeContainer * parent, KisImageSP img, const QString &name, quint8 opacity );
    virtual ~KisShapeLayer();
    KisNodeSP clone() const
        {
            return KisNodeSP( new KisShapeLayer(*this) ); -> Ya quoi comme prob ici? ca me parait bizarre
        }