class ShapeFactory
{
public:
	virtual Rectangle *MakeRectangle( int x, int y, int w, int h ) ;
	virtual Ellipse *MakeEllipse( int x, int y, int w, int h );
};

class DottedShapeFactory : public ShapeFactory
{
public:
	Rectangle *MakeRectangle( int x, int y, int w, int h );
	Ellipse *MakeEllipse( int x, int y, int w, int h );
};