//Calculate pie-slice sizes and orientations.
public void CalculateDisk(FolderItem root)
{
float angle = root.StartAngle;
float sweep = root.SweepAngle;
int level = root.Level;
foreach (FolderItem child in root.Children)
{
child.PercentageOfParent = (float)child.TotalSize / (float)root.TotalSize;
child.Level = level + 1;
child.StartAngle = Math.Abs(angle);
child.SweepAngle = Math.Abs(child.PercentageOfParent * sweep);
CalculateDisk(child);
angle += child.SweepAngle;
}
if (root.SweepAngle > 0.001)
{
mapdepth = Math.Max(mapdepth, root.Level);
}
}
public void OpenSelectedFolder()
{
FolderItem item = (FolderItem)treeView.SelectedNode.Tag;
System.Diagnostics.Process.Start(item.FolderName);
}
