def __init__(self, parent=None):
QtGui.QItemDelegate.__init__(self, parent)
self.mTimeData = [i for i in xrange(HISTORY)]
self.mCurve = Curve()
self.mCurve.setColor(QtCore.Qt.blue)
self.mCurve.setStyle(Curve.LINES)
self.mXMap = Scale()
self.mYMap = Scale()
self.mXMap.setScaleInterval(0, HISTORY)
self.mYMap.setScaleInterval(0, 100)
