def main():
app = QtWidgets.QApplication([])
window = QtWidgets.QWidget()
window.showFullScreen()
layout = QtWidgets.QGridLayout(window)
menu = SelectionMenu(layout)
layout.addWidget(QtWidgets.QLabel(), 0, 0)
layout.addWidget(menu, 1, 0)
layout.addWidget(QtWidgets.QLabel(), 2, 0)
app.exec_()
del app
