public CenteredAlbumViewModel(IList<IAlbum> iAlbums, IMusicSession isession)
{
Albums = iAlbums;
AlbumDistanceComparerFactory adcf = new AlbumDistanceComparerFactory(isession);
_OrderByAfinity = new AfinityCollection<IAlbum>(this.Albums, al => adcf.GetComparer(al), 50);
AffinityOrderedCollection = _OrderByAfinity.Collection;
//CenterAlbum = Albums.MaxBy(isession.AlbumSorter.Sorter);
_OrderByAfinity.Reference = Albums.MaxBy(isession.AlbumSorter.Sorter);
ChangeArtist = RelayCommand.Instanciate(DoChangeArtist);
ChangeGenre = RelayCommand.Instanciate(DoChangeGenre);
Random = RelayCommand.Instanciate(DoRandom);
ChangeAlbum = RelayCommand.Instanciate(DoChangeAlbum);
Center = RelayCommand.Instanciate<IAlbum>(al => CenterAlbum = al);
}
public void TestPef()
{
_IMusicSession.AllAlbums.Should().HaveCount(2860);
for (int k = 0; k < 10; k++)
{
AlbumDistanceComparerFactory adcf = new AlbumDistanceComparerFactory(_IMusicSession);
TimeTracer tr2 = TimeTracer.TimeTrack("100 Building Comparator Cache");
List<IUpdatableComparer<IAlbum>> cts = new List<IUpdatableComparer<IAlbum>>();
using (tr2)
{
for (int i = 0; i < 100; i++)
{
IUpdatableComparer<IAlbum> ct = adcf.GetComparer(_IMusicSession.AllAlbums[10]);
cts.Add(ct);
}
}
}
}
