public void ReevaulateSong(SongViewModel song)
{
bool belongsInList = !IsCircular && RootEvaluator.Eval(song);
bool updated = false;
if (belongsInList && !CurrentSongs.ActuallyContains(song))
{
CurrentSongs.Add(song);
updated = true;
}
else if (!belongsInList && CurrentSongs.ActuallyContains(song))
{
CurrentSongs.Remove(song);
updated = true;
}
if (updated && !IsCircular)
{
foreach (MixViewModel mixViewModel in DependentMixes)
{
mixViewModel.ReevaulateSong(song);
}
}
}
public void ReevaulateSong(SongViewModel song)
{
bool belongsInList = !IsCircular && RootEvaluator.Eval(song);
if (belongsInList && !CurrentSongs.ActuallyContains(song))
{
CurrentSongs.Add(song);
}
else if (!belongsInList && CurrentSongs.ActuallyContains(song))
{
CurrentSongs.Remove(song);
}
}
public void Reset()
{
CurrentSongs.Clear();
CurrentSongs.CollectionChanged -= HandleCurrentSongsCollectionChanged;
CurrentSongs.UpdateLimit((uint)Limit, HasLimit);
CurrentSongs.UpdateSortFunction(new SongSortGenericOrder(MixSortOrderToSongProperty(SortType), MixSortOrderToIsAscending(SortType)));
List <MixViewModel> oldDependentMixes = new List <MixViewModel>(DependentMixes);
UpdateDependencyList();
if (!IsCircular)
{
foreach (SongViewModel song in LibraryViewModel.Current.FlatSongCollection)
{
if (RootEvaluator.Eval(song))
{
CurrentSongs.Add(song);
}
}
}
// Reset any mixes that used to depend on this and might not anymore
foreach (MixViewModel mixViewModel in oldDependentMixes)
{
if (!DependentMixes.Contains(mixViewModel))
{
mixViewModel.Reset();
}
}
if (!IsCircular)
{
// Reset any mixes that now depend on this
List <MixViewModel> copyDependentMixes = new List <MixViewModel>(DependentMixes);
foreach (MixViewModel mixViewModel in copyDependentMixes)
{
mixViewModel.Reset();
}
}
CurrentSongs.CollectionChanged += HandleCurrentSongsCollectionChanged;
ResetLength();
}
public void OnSongPropertyChanged(SongViewModel song, string propertyName)
{
if (RootEvaluator.IsPropertyAffected(propertyName))
{
ReevaulateSong(song);
}
if (propertyName == MixSortOrderToSongProperty(SortType))
{
// Remove and reinsert to update sort order
if (CurrentSongs.ActuallyContains(song))
{
CurrentSongs.Remove(song);
CurrentSongs.Add(song);
}
}
}
