public LineCurveEditEngine(ShapeTool passedOwner) : base(passedOwner) { }
public EllipseEditEngine(ShapeTool owner) : base(owner) { }
public ArrowedEditEngine(ShapeTool passedOwner) : base(passedOwner) { }
public RoundedLineEditEngine(ShapeTool passedOwner) : base(passedOwner) { }
public EllipseEditEngine(ShapeTool passedOwner) : base(passedOwner) { }
public RectangleEditEngine(ShapeTool passedOwner) : base(passedOwner) { }