def __init__(self, name, parent=None, enabled=True):
super(RouterItem, self).__init__(parent)
assert router_name.is_valid(name)
self.name = name # TODO: Use @property
self._logger = logging.getLogger("RouterItem.router={0}".format(self.name))
self.setFlag(QGraphicsItem.ItemIsMovable)
self.setFlag(QGraphicsItem.ItemSendsGeometryChanges)
self.setCacheMode(QGraphicsItem.DeviceCoordinateCache)
self.setZValue(1)
# Circle color.
self.color = palette.palette[self.name]
# Circle radius.
self.radius = 5.0
# Circle (width, height).
self.size = QSizeF(2 * self.radius, 2 * self.radius)
self.size_rect = QRectF(QPointF(-self.size.width() / 2.0, -self.size.height() / 2.0), self.size)
self._last_paint_bounding_rect = QRectF(self.size_rect)
# connected router -> link to it
self._links = {}
# packet -> protocol
# self._packets_for_delivery = {}
self._link_manager = RouterLinkManager()
self._datagram_router = None
self._service_manager = None
self._rip_service_transmitter = None
self._rip_service = None
self.velocity = QPointF()
self.max_mouse_move_velocity = 100
self._drag_points = deque(maxlen=10)
self._enabled = False
self.hide()
self._start_networking()
self.enabled = enabled
update_rate = 20 # frames per second
self._timer_id = self.startTimer(int(1000.0 / update_rate))
def __init__(self, name):
super(Router, self).__init__()
assert router_name.is_valid(name)
self._name = name
self._link_manager = RouterLinkManager()
self._datagram_router = DatagramRouter(
router_name=self._name,
link_manager=self._link_manager)
self._service_manager = RouterServiceManager(self._datagram_router)
self._rip_service_transmitter = \
self._service_manager.register_service(RIPService.protocol)
self._rip_service = RIPService(self._name, self._link_manager,
self._rip_service_transmitter)
self._datagram_router.set_routing_table(
self._rip_service.dynamic_routing_table())