code: def setFixedHeight(self, height):
          
          super(XViewPanelBar, self).setFixedHeight(height)
  
          # update the layout
          if self.layout():
              for i in xrange(self.layout().count()):
                  try:
                      self.layout().itemAt(i).widget().setFixedHeight(height)
                  except StandardError:
                      continue
docs: Sets the fixed height for this bar to the inputed height.
  
          :param      height | <int>