Function fixPenForPdf

src/core/renderables/renderable_implementation.cpp:72–86

* When painting to a PDF engine, the miter limit must be adjusted from Qt's * concept to PDF's concept. This should be done in the PDF engine, but this * isn't the case. This may even result in PDF files which are considered * invalid by Reader & Co. * * The PDF miter limit could be precalculated for the Mapper use cases, but * this optimization would be lost when Qt gets fixed. * * Upst

 * Upstream issue: QTBUG-52641
 */
inline void fixPenForPdf(QPen& pen, const QPainter& painter)
{
#ifdef QT_PRINTSUPPORT_LIB
	auto engine = painter.paintEngine()->type();
	if (Q_UNLIKELY(engine == QPaintEngine::Pdf
	               || engine == AdvancedPdfPrinter::paintEngineType()))
	{
		const auto miter_limit = pen.miterLimit();
		pen.setMiterLimit(qSqrt(1.0 + miter_limit * miter_limit * 4));
	}
#else
	Q_UNUSED(pen)
	Q_UNUSED(painter)
#endif
}

}  // namespace