app.py 文件源码

def popup(self, widget,
              relative_width=50, relative_height=25,
              min_width=20, min_height=8,
              width=None, height=None):
        self.clearInputBuffer()
        if width is None:
            width = ('relative', relative_width)
        if height is None:
            height = ('relative', relative_height)
        overlay = urwid.Overlay(widget, self.frame.body,
                                'center', width,
                                'middle', height,
                                min_width=min_width, min_height=min_height)
        if hasattr(widget, 'title'):
            overlay.title = widget.title
        self.log.debug("Overlaying %s on screen %s" % (widget, self.frame.body))
        self.screens.append(self.frame.body)
        self.frame.body = overlay