private void PopulateDirectoryTree()
{
DirectoryTreeController.Clear();
DirectoryTree.Clear();
IDictionary <Directory, HierarchicalLibraryItem> directoryLookup = new SortedDictionary <Directory, HierarchicalLibraryItem>();
foreach (Directory directory in m_DataModel.Database.Directories.Values)
{
CreateDirectoryBranchNodesRecursively(directory, directoryLookup);
}
foreach (Song song in m_DataModel.Database.Songs.Values)
{
if (song.Directory == null)
{
DirectoryTree.Add(new HierarchicalLibraryItem(song, DirectoryTreeController));
}
else
{
new HierarchicalLibraryItem(song, directoryLookup[song.Directory]);
}
}
DirectoryTreeController.ResetNodeIds();
}
private void PopulateDirectoryTree()
{
DirectoryTreeController.ClearMultiSelection();
DirectoryTree.Clear();
DirectoryTreeViewNode rootNode = new DirectoryTreeViewNode("/", null, DirectoryTreeController);
IDictionary <string, TreeViewNode> directoryLookup = new SortedDictionary <string, TreeViewNode>();
directoryLookup[rootNode.DisplayString] = rootNode;
foreach (SongMetadata song in m_DataModel.Database.Songs)
{
TreeViewNode parent = FindDirectoryNode(song.Directory, directoryLookup, rootNode);
SongMetadataTreeViewNode leaf = new SongMetadataTreeViewNode(song.Filename, song, parent, DirectoryTreeController);
parent.AddChild(leaf);
}
AssignTreeViewNodeIDs(rootNode, 0);
if (rootNode.Children.Count > 0)
{
DirectoryTree.Add(rootNode);
rootNode.IsExpanded = true;
}
}
private HierarchicalLibraryItem CreateDirectoryBranchNodesRecursively(Directory directory, IDictionary <Directory, HierarchicalLibraryItem> directoryLookup)
{
HierarchicalLibraryItem result = null;
if (directory.Parent == null)
{
if (directoryLookup.TryGetValue(directory, out var item))
{
return(item);
}
result = new HierarchicalLibraryItem(directory, DirectoryTreeController);
DirectoryTree.Add(result);
}
else if (directoryLookup.ContainsKey(directory.Parent))
{
result = new HierarchicalLibraryItem(directory, directoryLookup[directory.Parent]);
}
else
{
result = new HierarchicalLibraryItem(directory, CreateDirectoryBranchNodesRecursively(directory.Parent, directoryLookup));
}
directoryLookup[directory] = result;
return(result);
}
