def setAnchorPath(self, path):
"""
Set the anchor's curve path as a :class:`QPainterPath`.
"""
self.prepareGeometryChange()
self.__boundingRect = None
self.__anchorPath = path
# Create a stroke of the path.
stroke_path = QPainterPathStroker()
stroke_path.setCapStyle(Qt.RoundCap)
# Shape is wider (bigger mouse hit area - should be settable)
stroke_path.setWidth(12)
self.__shape = stroke_path.createStroke(path)
# The full stroke
stroke_path.setWidth(3)
self.__fullStroke = stroke_path.createStroke(path)
# The dotted stroke (when not connected to anything)
stroke_path.setDashPattern(Qt.DotLine)
self.__dottedStroke = stroke_path.createStroke(path)
if self.anchored:
self.setPath(self.__fullStroke)
self.setBrush(self.connectedBrush)
else:
self.setPath(self.__dottedStroke)
self.setBrush(self.normalBrush)
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
def shape(self):
qp = QPainterPathStroker()
qp.setWidth(10)
qp.setCapStyle(Qt.SquareCap)
return qp.createStroke(self.path())
