public void Flip()
{
Box a = isVertical ? vBox : hBox;
Box b = isVertical ? hBox : vBox;
a.Removed -= HandleRemoved;
while (a.Children.Count() > 0)
{
var child = a.Children[0];
a.Remove(child);
b.Add(child);
if (child is DockItemTitleTab)
(child as DockItemTitleTab).UpdateBehavior();
}
box.Hide();
box = b;
box.Removed += HandleRemoved;
box.Show();
box.QueueDraw();
QueueResize();
var dc = Parent as DockContainer;
if (dc != null)
dc.RecalcLayout();
}