panel.add(self.sliceBox.getWidget())
hp = HorizontalPanel()
applyButton = Button("Apply", self.apply)
hp.add(applyButton)
panel.add(hp)
panel.add(self.sliceBox.getWidget())
hp = HorizontalPanel()
applyButton = Button("Apply", self.apply)
hp.add(applyButton)
panel.add(hp)