private void UpdateSum()
{
lock (this)
{
if (state != ScanState.SCANNING)
{
return;
}
size.Zero();
size.Add(allFilesSize);
size.folderCount += children.Count;
foreach (FolderInfo fi in children)
{
if (fi.size.childrenDenied)
{
size.childrenDenied = true;
}
else if (fi.State != ScanState.DONE)
{
return; // not ready yet!
}
size.Add(fi.Size);
}
state = ScanState.DONE;
stateChanged = true;
}
if (parent != null)
{
parent.UpdateSum();
}
}
internal void DoScan()
{
bool updateSum = false;
lock (this)
{
if (state != ScanState.QUEUED)
{
throw new Exception();
}
state = ScanState.SCANNING;
stateChanged = true;
allFilesSize.Zero();
filesSizeByExtension.Clear();
try
{
foreach (string dir in Directory.GetDirectories(fullPath))
{
children.Add(new FolderInfo(this, dir, Path.GetFileName(dir), clusterSizeOverride));
}
children.Sort(new Comparison <FolderInfo>(delegate(FolderInfo fi1, FolderInfo fi2)
{
return(fi1.DisplayName.CompareTo(fi2.DisplayName));
}));
string[] files = Directory.GetFiles(fullPath);
foreach (string file in files)
{
string extension;
string fn = Path.GetFileName(file);
if (fn.IndexOf(".") != -1)
{
extension = fn.Substring(fn.LastIndexOf(".") + 1);
}
else
{
extension = "";
}
FolderSize ext;
if (!filesSizeByExtension.ContainsKey(extension))
{
ext = new FolderSize(true);
}
else
{
ext = filesSizeByExtension[extension];
}
AddFileSize(ref ext, file);
filesSizeByExtension[extension] = ext;
AddFileSize(ref allFilesSize, file);
}
if (children.Count == 0)
{
// we are a leaf, so update the counts
updateSum = true;
}
}
catch (Exception)
{
allFilesSize.Zero();
filesSizeByExtension.Clear();
updateSum = true;
children.Clear();
stateChanged = true;
size.childrenDenied = true;
}
}
if (updateSum)
{
UpdateSum();
}
}