def __init__(self, *args, **kwargs):
kwargs['padding'] = (5, 5)
kwargs['border'] = (1, (0, 0, 0))
VerticalContainer.__init__(self, *args, **kwargs)
self.items = []
# This is the index of the item at the top of the
# displayed list of items. It is None if there are no items.
self.listItemViewedIndex = None
self.selectedItem = None
self._dirty = True
self.callback = None
