treesample.py 文件源码

def __init__(self, data=None):
        self.topnode = ExampleParentNode(data)
        self.listbox = urwid.TreeListBox(urwid.TreeWalker(self.topnode))
        self.listbox.offset_rows = 1
        self.header = urwid.Text( "" )
        self.footer = urwid.AttrWrap( urwid.Text( self.footer_text ),
            'foot')
        self.view = urwid.Frame(
            urwid.AttrWrap( self.listbox, 'body' ),
            header=urwid.AttrWrap(self.header, 'head' ),
            footer=self.footer )