'Set the list of field names/units to be processed.
The format of *fields* is the same as used by
:func:`ColorMapWidget.setFields <pyqtgraph.widgets.ColorMapWidget.ColorMapParameter.setFields>`'

def setFields(self, fields, mouseOverField=None):

    self.fields = OrderedDict(fields)
    self.mouseOverField = mouseOverField
    self.fieldList.clear()
    for (f, opts) in fields:
        item = QtGui.QListWidgetItem(f)
        item.opts = opts
        item = self.fieldList.addItem(item)
    self.filter.setFields(fields)
    self.colorMap.setFields(fields)
