/// <summary>
/// Recursively traverses the tree and adds all checked items, which are files to the FileList
/// </summary>
/// <param name="parentContainer"></param>
private void GetNextContainer(MyTreeViewItem parentContainer)
{
foreach (var item in parentContainer.Items)
{
MyTreeViewItem currentContainer = parentContainer.ItemContainerGenerator.ContainerFromItem(item) as MyTreeViewItem;
if (currentContainer == null)
{
continue;
}
if (currentContainer.IsChecked != null && currentContainer.IsChecked == true && currentContainer.FileType == File)
{
var addFile = myPresenter.PathAllreadyInList(currentContainer.Tag.ToString(), _fileCollection);
if (addFile)
{
//ListViewSelectedFiles.Items.Add(currentContainer.Tag);
var add = new FileItem();
var myInfo = new FileInfo(currentContainer.Tag.ToString());
add.FullPath = currentContainer.Tag.ToString();
add.Name = Path.GetFileNameWithoutExtension(currentContainer.Header.ToString());
double len = myInfo.Length;
add.Size = myPresenter.MakeFileSizeToReadableString(len);
add.Changed = myInfo.LastWriteTime.ToString(CultureInfo.InvariantCulture);
add.Type = Path.GetExtension(add.FullPath).Length > 0 ? Path.GetExtension(add.FullPath).Substring(1) : "Unknown";
_fileCollection.Files.Add(add);
}
}
// If the sub containers of current item is ready, we can directly go to the next
// iteration to expand them.
GetNextContainer(currentContainer);
}
}
/// <summary>
/// Folder expanded Event handler, fired when user clicks on a folder to expand,
/// tree is filled on the fly, only when a folder is expanded we add its
/// contents as a new layer
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Folder_Expanded(object sender, RoutedEventArgs e)
{
var item = (MyTreeViewItem)sender;
if (item.Items.Count != 1 || item.Items[0] != _dummyNode)
{
return; //_dummyNode is needed to know if we can do a folder expansion here, if there is no dummynode, we have allready expanded it, or it isn´t an expandable item
}
item.Items.Clear(); // remove the dummy Node
try
{
foreach (var s in Directory.GetFiles(item.Tag.ToString()))
{
// add each file under the current directory to the treeview...
if (!myPresenter.IsFileCompressable(s))
{
continue;
}
var subitem = new MyTreeViewItem
{
Header = s.Substring(s.LastIndexOf("\\", StringComparison.Ordinal) + 1),
Tag = s,
FileType = File,
FontWeight = FontWeights.Normal,
IsChecked = false
};
item.Items.Add(subitem);
}
foreach (var s in Directory.GetDirectories(item.Tag.ToString()))
{
// add each directory under the current directory to the treeview...
var subitem = new MyTreeViewItem
{
Header = s.Substring(s.LastIndexOf("\\", StringComparison.Ordinal) + 1),
Tag = s,
FileType = Folder,
FontWeight = FontWeights.Normal,
IsChecked = false
};
subitem.Items.Add(_dummyNode);//each new folder gets a dummynode, could be a expandable folder, also a newly added folder has not been expanded yet
subitem.Expanded += Folder_Expanded;
item.Items.Add(subitem);
}
}
catch (DriveNotFoundException ex1)
{
MessageBox.Show(ex1.Message);
}
catch (IOException ex1)
{
MessageBox.Show(ex1.Message);
}
catch (UnauthorizedAccessException ex1)
{
MessageBox.Show(ex1.Message);
}
}
/// <summary>
/// Fill the three with the highest layer ( drive layer ) (initialisation of the FileTree)
/// </summary>
private void FillTree()
{
foreach (var s in Directory.GetLogicalDrives())
{
MyTreeViewItem item = new MyTreeViewItem
{
Header = s,
Tag = s,
FontWeight = FontWeights.Normal,
FileType = Drive,
IsChecked = false
};
item.Items.Add(_dummyNode);
item.Expanded += Folder_Expanded;
TreeViewDirectory.Items.Add(item);
}
}
/// <summary>
/// This will check all treeviewitems underneath a treeview item, but only files.
/// </summary>
/// <param name="check">shall the treeview items be checked or not?</param>
/// <param name="treeViewItem">The Parent TreeViewItem</param>
/// <param name="updateChildFiles">Shall we update the child files or not?</param>
private static void SetTreeViewItemChecked(bool check, MyTreeViewItem treeViewItem, bool updateChildFiles)
{
treeViewItem.IsExpanded = check;
treeViewItem.IsSelected = true;
treeViewItem.IsChecked = check;
//int test = treeViewItem.Items.Count;
if (treeViewItem.Items.Count <= 0 || !updateChildFiles)
{
return;
}
foreach (object t in treeViewItem.Items)
{
var currentTreeViewItem = t as MyTreeViewItem;
if (currentTreeViewItem != null && currentTreeViewItem.FileType == Folder)
{
break; // Folders are always added at the end so we can do this
}
if (currentTreeViewItem != null)
{
currentTreeViewItem.IsChecked = check;
}
}
}
