qreal xScale = (_boundingRect.width() - 2 * frameWidth) / webView->width();
qreal yScale = (_boundingRect.height() - 2 * frameWidth) / webView->height();
qreal xScale = (_boundingRect.width() - 2 * frameWidth) / webView->width();
qreal yScale = (_boundingRect.height() - 2 * frameWidth) / webView->height();