def rebuild(self):
try:
self.thread.refresh()
except NonexistantObjectError:
self.body = urwid.SolidFill()
self.message_count = 0
return
self._tree = ThreadTree(self.thread)
bars_att = settings.get_theming_attribute('thread', 'arrow_bars')
heads_att = settings.get_theming_attribute('thread', 'arrow_heads')
A = ArrowTree(self._tree,
indent=2,
childbar_offset=0,
arrow_tip_att=heads_att,
arrow_att=bars_att,
)
self._nested_tree = NestedTree(A, interpret_covered=True)
self.body = TreeBox(self._nested_tree)
self.message_count = self.thread.get_total_messages()
