self.mapToParent(-(self.boundingRect().width()),
-(self.boundingRect().width() + 2)))
if not self.scene().sceneRect().contains((newPoint)):
print('move to 0, 0')
newPoint = self.mapToParent(0, 0)
else:
self.setPos(newPoint)
if __name__ == '__main__':
app = QApplication(sys.argv)
scene = QGraphicsScene(QRectF(-200, -200, 300, 300))
view = QGraphicsView()
view.setRenderHint(QPainter.Antialiasing)
boundaryPen = QPen(Qt.red)
scene.addRect(scene.sceneRect())
itemCount = 20
for i in range(0, itemCount):
item = MyItem()
scene.addItem(item)
timer = QTimer()
timer.setInterval(500)
timer.timeout.connect(scene.advance)
view.setScene(scene)
view.show()
sys.exit(app.exec_())
