Adds the inputed action to this widget's action group.  This will auto-\
        create a new group if no group is already defined.
        
        :param      action | <QAction> || <str>
        
        :return     <QAction>

def addAction( self, action ):
        """
        Adds the inputed action to this widget's action group.  This will auto-\
        create a new group if no group is already defined.
        
        :param      action | <QAction> || <str>
        
        :return     <QAction>
        """
        if not isinstance(action, QAction):
            action_name = nativestring(action)
            action = QAction(action_name, self)
            action.setObjectName(action_name)
        
        action.setCheckable(True)
        
        if ( not self._actionGroup ):
            self._actionGroup = QActionGroup(self)
            action.setChecked(True)
            
        self._actionGroup.addAction(action)
        self.reset()
        return action