public StationGroup AddStation(Station station)
{
StationGroup new_group = FindGroupForStation(station);
StationGroup old_group = station.Parent as StationGroup;
if (new_group == old_group && old_group != null)
{
return(new_group);
}
if (old_group != null)
{
old_group.RemoveChild(station);
if (old_group.ChildCount == 0)
{
RemoveNode(old_group);
}
}
if (new_group == null || old_group == null)
{
new_group = CreateGroup(station.Group);
AddNode(new_group);
}
new_group.AddChild(station);
return(new_group);
}
public StationStore(Stations stations) : base(typeof(Station))
{
this.stations = stations;
foreach (Station station in stations.List)
{
StationGroup group = FindGroupForStation(station);
if (group == null)
{
group = CreateGroup(station.Group);
AddNode(group);
}
group.AddChild(station);
}
}
public void RemoveStation(Station station)
{
StationGroup group = station.Parent as StationGroup;
if (group == null)
{
return;
}
group.RemoveChild(station);
if (group.ChildCount == 0)
{
RemoveNode(group);
}
stations.Remove(station);
stations.Save();
}
private StationGroup FindGroupForStation(Station station)
{
if (station == null)
{
return(null);
}
foreach (TreeNode node in this)
{
if (!(node is StationGroup))
{
continue;
}
StationGroup group = node as StationGroup;
if (group.Title != null && station.Group != null &&
group.Title.ToLower() == station.Group.ToLower())
{
return(group);
}
}
return(null);
}