Inheritance: ObjectPointerTool, ICommandSubscriber
 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;
 }