public WaypointsService()
{
VisibleWaypoints = new ObservableCollectionReadOnlyWrapping <Waypoint>(_visibleWaypoints);
SelectedWaypoints = new ObservableCollectionReadOnlyWrapping <Waypoint>(_selectedWaypoints);
RemoveCommand = new DelegateCommand(obj => Waypoints.Remove((Waypoint)obj));
Waypoints.CollectionChanged += Waypoints_CollectionChanged;
}
public GroupsService(IWaypointsService waypointsService)
{
_waypointsService = waypointsService;
Shapes = new ObservableCollectionReadOnlyWrapping <IShapeProvider>(_shapes);
DefaultGroup = new Group("Не сгруппированные");
_waypointsService.Waypoints.CollectionChanged += Waypoints_CollectionChanged;
DefaultGroup.Children.CollectionChanged += DefaultWaypoints_CollectionChanged;
Groups.CollectionChanged += Groups_CollectionChanged;
}