summary.py 文件源码

def mksection(title, width, items):
    # Setting class variable 'title = title' below produces "NameError: name
    # 'title' is not defined"
    title_, width_ = title, width
    class Section(urwid.WidgetWrap):
        title = title_
        width = width_

        def __init__(self):
            value_widgets = {}
            needed_keys = set()
            rows = []
            label_width = max(len(item.label) for item in items)
            for item in items:
                label_w = urwid.Text(item.label.rjust(label_width))
                value_w = urwid.Text('')
                value_widgets[item] = value_w
                rows.append(urwid.Columns([('pack', label_w),
                                           ('pack', urwid.Text(': ')),
                                           value_w]))
                needed_keys.update(item.needed_keys)
            self._value_widgets = value_widgets
            self.needed_keys = needed_keys
            super().__init__(urwid.Pile(rows))

        def update(self, torrent):
            for item,value_w in self._value_widgets.items():
                value_w.set_text(item.human_readable(torrent))

    return Section