Question

I have a subclass of QGraphicsRectItem. The mouseMoveEvent handler looks like this:

void BTNodeGraphicsItem::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
{
    QGraphicsRectItem::mouseMoveEvent(event);
    qDebug() << rect().x() << " " << rect().y();
}

The item drags like I expect. But the qDebug statement outputs the same coordinates as I drag it. Shouldn’t the rect be changing as it is dragged?

Answer 1

You are getting the position in coordinates that are relative to the graphics item. To get coordinates in another perspective, use something like mapToScene(rect())