QGraphicsObject at Mouse Position

[Axel_Erfurt]

try this

    def setPosition(self, pos):
        self._x = pos.x() - pos.x()/2
        self._y = pos.y() - pos.y()/2
        self.setPos(QPointF(self._x, self._y))

    def mouseMoveEvent(self, event):
        pos = event.pos()
        self._brushItem.setPosition(pos)