QLabel vehicleTypeLabel = new QLabel("Vehicle Type:");
vehicleTypeCombo = new QComboBox();
for (SumoVehicleType vt : SumoManager.getInstance().getVehicleTypes())
vehicleTypeCombo.addItem(vt.getId());
gridLayout.addWidget(routeLabel, 2, 0, 1, 1, AlignmentFlag.AlignLeft);
gridLayout.addWidget(routeWidget, 2, 1, 1, 1, AlignmentFlag.AlignRight);
gridLayout.addWidget(vehicleTypeLabel, 3, 0, 1, 1, AlignmentFlag.AlignLeft);
gridLayout.addWidget(vehicleTypeCombo, 3, 1, 1, 1, AlignmentFlag.AlignRight);