def __init__(self, parent=None):
QtGui.QDialog.__init__(self, parent)
self._ui = Ui_ConfigureDialog()
self._ui.setupUi(self)
self._workflow_location = None
# Keep track of the previous identifier so that we can track changes
# and know how many occurrences of the current identifier there should
# be.
self._previousIdentifier = ''
# Set a place holder for a callable that will get set from the step.
# We will use this method to decide whether the identifier is unique.
self.identifierOccursCount = None
self._previousLocation = ''
self._makeConnections()
