[Interest] Mapping floating point screen coordinates to QGraphicsScene

[Patrick Stinson]

UITouch coordinates are floating point on iOS, for example for the Apple Pencil. Is there a way to map this? Seems like this would be easy to implement based on the QPoint version…

// pks: apple pencil                                                                                            
QPointF QGraphicsView::mapToScene(const QPointF &point) const
{
    Q_D(const QGraphicsView);
    QPointF p = point;
    p.rx() += d->horizontalScroll();
    p.ry() += d->verticalScroll();
    return d->identityMatrix ? p : d->matrix.inverted().map(p);
}