Method mouseMoveEvent

QtNodeEditor/src/NodeGraphicsObject.cpp:266–314

void
NodeGraphicsObject::
mouseMoveEvent(QGraphicsSceneMouseEvent * event)
{
  auto & geom  = _node.nodeGeometry();
  auto & state = _node.nodeState();

  if (state.resizing())
  {
    auto diff = event->pos() - event->lastPos();

    if (auto w = _node.nodeDataModel()->embeddedWidget())
    {
      prepareGeometryChange();

      auto oldSize = w->size();

      oldSize += QSize(diff.x(), diff.y());

      w->setFixedSize(oldSize);

      _proxyWidget->setMinimumSize(oldSize);
      _proxyWidget->setMaximumSize(oldSize);
      _proxyWidget->setPos(geom.widgetPosition());

      geom.recalculateSize();
      update();

      moveConnections();

      event->accept();
    }
  }
  else
  {
    QGraphicsObject::mouseMoveEvent(event);

    if (event->lastPos() != event->pos())
      moveConnections();

    event->ignore();
  }

  QRectF r = scene()->sceneRect();

  r = r.united(mapToScene(boundingRect()).boundingRect());

  scene()->setSceneRect(r);
}


void