'Create a QLabel with *text* and place it in the next available cell (or in the cell specified)
All extra keyword arguments are passed to QLabel().
Returns the created widget.'

def addLabel(self, text='    ', row=None, col=None, rowspan=1, colspan=1, **kargs):

    text = QtGui.QLabel(text, **kargs)
    self.addItem(text, row, col, rowspan, colspan)
    return text
