buttons.py 文件源码

def __init__(self, section_button):
        Gtk.Button.__init__(self)
        alignment = Gtk.Alignment.new(0.5, 0.5, 0.0, 1.0)
        alignment.set_padding(self.PADDING, self.PADDING,
                              self.PADDING, self.PADDING)
        self.add(alignment)
        self.arrow = Gtk.Arrow.new(Gtk.ArrowType.DOWN, Gtk.ShadowType.IN)
        alignment.add(self.arrow)

        # vars
        self.parent_style_type = Gtk.Toolbar
        self.section_button = section_button
        self.popup = None
        self.connect("button-press-event", self.on_button_press)