private void PopulateGenreTree()
{
GenreTreeController.ClearMultiSelection();
GenreTree.Clear();
foreach (string genre in m_DataModel.Database.Genres)
{
GenreTreeViewNode genreNode = new GenreTreeViewNode(genre, null, GenreTreeController);
foreach (AlbumMetadata album in m_DataModel.Database.AlbumsByGenre(genre))
{
AlbumMetadataTreeViewNode albumNode = new AlbumMetadataTreeViewNode(album, genreNode, GenreTreeController);
genreNode.AddChild(albumNode);
foreach (SongMetadata song in m_DataModel.Database.SongsByAlbum(album))
{
if (song.Genre == genre)
{
SongMetadataTreeViewNode songNode = new SongMetadataTreeViewNode("", song, albumNode, GenreTreeController);
albumNode.AddChild(songNode);
}
}
}
GenreTree.Add(genreNode);
}
int id = 0;
foreach (TreeViewNode baseNode in GenreTree)
{
id = AssignTreeViewNodeIDs(baseNode, id);
}
}
public void ShowSongsInGenreTree(IEnumerable <SongMetadata> selectedSongs)
{
ISet <string> selectedGenres = new SortedSet <string>();
ISet <AlbumMetadata> selectedAlbums = new SortedSet <AlbumMetadata>();
ISet <string> selectedSongPaths = new SortedSet <string>(StringComparer.Ordinal);
foreach (SongMetadata song in selectedSongs)
{
if (song.IsLocal)
{
selectedGenres.Add(song.Genre);
selectedAlbums.Add(new AlbumMetadata(song.Artist, song.Album, null));
selectedSongPaths.Add(song.Path);
}
}
GenreTreeController.ClearMultiSelection();
foreach (TreeViewNode rootNode in GenreTreeController.RootLevelNodes)
{
GenreTreeViewNode genreNode = rootNode as GenreTreeViewNode;
genreNode.IsExpanded = false;
if (selectedGenres.Contains(genreNode.Genre))
{
genreNode.IsExpanded = true;
foreach (TreeViewNode midNode in genreNode.Children)
{
AlbumMetadataTreeViewNode albumNode = midNode as AlbumMetadataTreeViewNode;
albumNode.IsExpanded = false;
if (selectedAlbums.Contains(albumNode.Album))
{
albumNode.IsExpanded = true;
foreach (TreeViewNode leafNode in albumNode.Children)
{
SongMetadataTreeViewNode songNode = leafNode as SongMetadataTreeViewNode;
if (selectedSongPaths.Contains(songNode.Song.Path))
{
songNode.IsMultiSelected = true;
}
}
}
}
}
}
}