public SelectionTimeoutToolState(ObjectSelectTool tool) : base(tool) { }
public SelectionAreaToolState(ObjectSelectTool tool) : base(tool) { }
public RotationStandbyToolState(ObjectSelectTool tool) : base(tool) { }
public ReleaseToolState(ObjectSelectTool tool) : base(tool) { }
protected ToolState(ObjectSelectTool tool) { Tool = tool; }