def stroke_path(path, pen):
"""Create a QPainterPath stroke from the `path` drawn with `pen`.
"""
stroker = QPainterPathStroker()
stroker.setCapStyle(pen.capStyle())
stroker.setJoinStyle(pen.joinStyle())
stroker.setMiterLimit(pen.miterLimit())
stroker.setWidth(max(pen.widthF(), 1e-9))
return stroker.createStroke(path)
def shape_from_path(self, path, pen):
if path == QPainterPath() or pen == Qt.NoPen:
return path
ps = QPainterPathStroker()
ps.setCapStyle(pen.capStyle())
ps.setWidth(pen.widthF())
ps.setJoinStyle(pen.joinStyle())
ps.setMiterLimit(pen.miterLimit())
p = ps.createStroke(path)
p.addPath(path)
return p
