def addResultSubWindow(self, plotWidget):
subWindow = QMdiSubWindow(parent=self.getMdiArea())
subWindow.setAttribute(Qt.WA_DeleteOnClose)
subWindow.setWidget(plotWidget)
subWindow.setOption(QMdiSubWindow.RubberBandResize, True)
self.getMdiArea().addSubWindow(subWindow)
subWindow.showMaximized()
subWindow.activateWindow()
subWindow.show() # important!
self.show()
