QRect QtViewportHandler::visibleContentsRect() const
{
const QRectF visibleRect(m_viewportItem->boundingRect().intersected(m_pageItem->boundingRect()));
// We avoid using toAlignedRect() because it produces inconsistent width and height.
QRectF mappedRect(m_viewportItem->mapRectToWebContent(visibleRect));
return QRect(floor(mappedRect.x()), floor(mappedRect.y()), floor(mappedRect.width()), floor(mappedRect.height()));
}
FloatRect TransformationMatrix::mapRect(const FloatRect& r) const
{
if (isIdentityOrTranslation()) {
FloatRect mappedRect(r);
mappedRect.move(static_cast<float>(m_matrix[3][0]), static_cast<float>(m_matrix[3][1]));
return mappedRect;
}
FloatQuad resultQuad = mapQuad(FloatQuad(r));
return resultQuad.boundingBox();
}
FloatRect AffineTransform::mapRect(const FloatRect& rect) const
{
if (isIdentityOrTranslation()) {
FloatRect mappedRect(rect);
mappedRect.move(narrowPrecisionToFloat(m_transform[4]), narrowPrecisionToFloat(m_transform[5]));
return mappedRect;
}
FloatQuad result;
result.setP1(mapPoint(rect.location()));
result.setP2(mapPoint(FloatPoint(rect.right(), rect.y())));
result.setP3(mapPoint(FloatPoint(rect.right(), rect.bottom())));
result.setP4(mapPoint(FloatPoint(rect.x(), rect.bottom())));
return result.boundingBox();
}
