public ImageTreeDirectory(DirectoryInfo directory, ImageTreeDirectory parent = null)
{
if (!directory.Exists)
{
throw new DirectoryNotFoundException("The specified directory does not exist");
}
DirectoryInfo = directory;
Parent = parent;
}
/// <summary>
/// Scans the tree to find all images, and all shortcuts to images.
/// </summary>
/// <param name="token"></param>
public void Populate(CancellationToken token)
{
ScanStarted?.Invoke(new DirectoryScanInfo {
Directory = DirectoryInfo
});
if (token.IsCancellationRequested)
{
return;
}
try
{
EnsureShortcutUtility();
List <ImageItem> children = new List <ImageItem>();
ImageItem child;
foreach (var file in DirectoryInfo.EnumerateFilesByExtensions(Constants.IMAGE_FILE_EXTENSIONS_PLUS_LINK))
{
if (token.IsCancellationRequested)
{
return;
}
child = new ImageItem(file, ShortcutUtility);
if (child.IsImage)
{
children.Add(child);
}
}
if (token.IsCancellationRequested)
{
return;
}
AddDescendants(children, 0);
EnsureBlacklist();
foreach (var subDir in DirectoryInfo.EnumerateDirectories())
{
if (token.IsCancellationRequested)
{
return;
}
if (!BlacklistExcludes(subDir.FullName) && !subDir.Attributes.HasFlag(FileAttributes.System))
{
var subTreeDir = new ImageTreeDirectory(subDir, this)
{
Blacklist = Blacklist,
ShortcutUtility = ShortcutUtility
};
subTreeDir.ScanStarted += ScanStarted;
subTreeDir.ScanFailed += ScanFailed;
subTreeDir.Populate(token);
if (token.IsCancellationRequested)
{
return;
}
ChildDirectories.Add(subTreeDir);
}
}
IsPopulated = true;
}
catch (Exception ex)
{
ScanFailed?.Invoke(new DirectoryScanInfo {
Directory = DirectoryInfo, Exception = ex
});
}
}
