qreal previewY = webPreview.urlRect.bottom();
qreal previewX = webPreview.urlRect.x();
if(previewY + webPreview.previewItem->boundingRect().height() > sceneRect().bottom())
qreal previewY = webPreview.urlRect.bottom();
qreal previewX = webPreview.urlRect.x();
if(previewY + webPreview.previewItem->boundingRect().height() > sceneRect().bottom())