Method mouseMoveEvent

QtNodeEditor/src/ConnectionGraphicsObject.cpp:160–197

void
ConnectionGraphicsObject::
mouseMoveEvent(QGraphicsSceneMouseEvent* event)
{
  prepareGeometryChange();

  auto view = static_cast<QGraphicsView*>(event->widget());
  auto node = locateNodeAt(event->scenePos(),
                           _scene,
                           view->transform());

  auto &state = _connection.connectionState();

  state.interactWithNode(node);
  if (node)
  {
    node->reactToPossibleConnection(state.requiredPort(),
                                    _connection.dataType(oppositePort(state.requiredPort())),
                                    event->scenePos());
  }

  //-------------------

  QPointF offset = event->pos() - event->lastPos();

  auto requiredPort = _connection.requiredPort();

  if (requiredPort != PortType::None)
  {
    _connection.connectionGeometry().moveEndPoint(requiredPort, offset);
  }

  //-------------------

  update();

  event->accept();
}


void