def __init__(self, context):
        """
        :type context: qt_gui.PluginContext
        """

        super(LaunchPlugin, self).__init__(context)

        self._main = LaunchMain(context)

        self._widget = self._main.get_widget()
        if context.serial_number() > 1:
            self._widget.setWindowTitle(self._widget.windowTitle() +
                                        (' (%d)' % context.serial_number()))
        context.add_widget(self._widget)