Updates the item with the new data value.
        
        :param      editor  | <QtGui.QWidget>
                    model   | <QtGui.QModel>
                    index   | <QtGui.QModelIndex>

def setModelData(self, editor, model, index):
        """
        Updates the item with the new data value.
        
        :param      editor  | <QtGui.QWidget>
                    model   | <QtGui.QModel>
                    index   | <QtGui.QModelIndex>
        """
        value = editor.currentText()
        model.setData(index, wrapVariant(value))