private void ItemsChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (var eNewItem in e.NewItems)
{
var newPayload = eNewItem as T;
var newHex = _space.Add(newPayload);
RenderChild(newHex, newPayload);
}
break;
case NotifyCollectionChangedAction.Move:
break;
case NotifyCollectionChangedAction.Remove:
foreach (var removedPayload in e.OldItems)
{
var hexPayloadToRemove = _space.Elements().FirstOrDefault(pair => pair.Value == removedPayload);
var hexToRemove = hexPayloadToRemove.Key;
_space.Remove(hexToRemove);
var viewToRemove = GetViewForHex(hexToRemove);
_content.Children.Remove(viewToRemove);
}
break;
case NotifyCollectionChangedAction.Replace:
break;
case NotifyCollectionChangedAction.Reset:
_space.Clear();
_content.Children.Clear();
break;
default:
throw new ArgumentOutOfRangeException();
}
}
