QPainterPath笔画工件

Question

I am putting together a QPainterPath with text, then I'm drawing it, first with QPainter::strokePath , then with QPainter::fillPath . However, the stroke exhibits artefacts, as shown in the image. Anything I am doing wrong/how to prevent this? Should I report it as a bug?

Answer 1

I've found out that instead of using strokePath and fillPath , the following code works without artefacts and is even faster to render:

if(outlineEnabled) {
    p.setBrush(Qt::NoBrush);
    p.setPen(QPen(outlineColor, outlineWidth/scaleFactor, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
    for(const auto &polygon : path.toSubpathPolygons())
        p.drawPolygon(polygon, Qt::OddEvenFill);
}

p.setBrush(color);
p.setPen(Qt::NoPen);
for(const auto &polygon : path.toFillPolygons())
    p.drawPolygon(polygon, Qt::OddEvenFill);