containers.py 文件源码

def __init__(self, padding=0):
        Gtk.Alignment.__init__(self)
        # set padding + some additional padding in the bottom, left and
        # right edges to factor in the dropshadow width, and ensure even
        # visual border
        self.set_padding(padding, padding + 2, padding + 1, padding + 1)

        self._cache_art_assets()
        # second tier of caching, cache resultant surface of
        # fully composed and rendered frame
        self._frame_surface_cache = None
        self._allocation = Gdk.Rectangle()
        self.connect("size-allocate", self.on_size_allocate)
        self.connect("style-updated", self.on_style_updated)