private void OnListChanged(Object o, ListChangeEventArgs e)
{
var this_as_t = this.AssertCast <T>();
var eqc = EqualityComparer <T> .Default;
foreach (T c in e.NewItems)
{
OnChildAdded(c);
if (ChildAdded != null)
{
ChildAdded(c);
}
if (c != null && !eqc.Equals(c.Parent, this_as_t))
{
c.Parent = this_as_t;
}
}
foreach (T c in e.OldItems)
{
OnChildRemoved(c);
if (ChildRemoved != null)
{
ChildRemoved(c);
}
if (c != null && eqc.Equals(c.Parent, this_as_t))
{
c.Parent = null;
}
}
}
public static void Apply <T>(this IList <T> list, ListChangeEventArgs changes)
{
var si = changes.NewStartingIndex == -1 ? list.Count : changes.NewStartingIndex;
switch (changes.Action)
{
case ListChangeAction.Add:
changes.NewItems.ForEach((Object el, int i) => list.Insert(si + i, (T)el));
break;
case ListChangeAction.Remove:
changes.OldItems.Cast <T>().ForEach(el => list.Remove(el));
break;
case ListChangeAction.Replace:
case ListChangeAction.Move:
changes.NewItems.ForEach((Object el, int i) => list.Insert(si + i, (T)el));
changes.OldItems.Cast <T>().ForEach(el => list.Remove(el));
break;
case ListChangeAction.Reset:
list.Clear();
break;
default:
throw new ArgumentOutOfRangeException(changes.Action.ToString());
}
}
private void FireListChanged(ListChangeEventArgs args)
{
OnListChanged(args);
if (ListChanged != null)
{
ListChanged(this, args);
}
}
private void OnListChanging(Object o, ListChangeEventArgs e)
{
foreach (T c in e.NewItems)
{
OnChildAdding(c);
if (ChildAdding != null)
{
ChildAdding(c);
}
}
foreach (T c in e.OldItems)
{
OnChildRemoving(c);
if (ChildRemoving != null)
{
ChildRemoving(c);
}
}
IsFrozen.AssertFalse();
}
public void OnBeforeMediaListChange(object sender, ListChangeEventArgs e)
{
}
private void MediaList_AfterListChanged(object sender, ListChangeEventArgs e)
{
//mediaListHistoryCurrentIndex += e.SwitchDirection == DragableListSwitchDirection.Back ? -1 : 0;
}
private void BanChangesToLocalsWhenFrozen(Object sender, ListChangeEventArgs args)
{
throw AssertionHelper.Fail();
}
private void ChangeTracking_ChildrenChanged(Object o, ListChangeEventArgs args)
{
FireListChanged(args);
FirePropertyChanged("Children", args);
}
protected virtual void OnListChanged(ListChangeEventArgs args)
{
}
