def __init__(self, name, host='127.0.0.1', port=27017):
        self.name = name
        self.host = host
        self.port = port
def activate(self, callingWindow, fullContext, mainItem, i):
        fitID = self.mainFrame.getActiveFit()
        Fit.getInstance().setAsPattern(fitID, mainItem)
        wx.PostEvent(self.mainFrame, GE.FitChanged(fitIDs=(fitID,)))