void EllipseObject::vulcanize()
{
    qDebug("EllipseObject vulcanize()");
    updateRubber();

    setObjectRubberMode(OBJ_RUBBER_OFF);
}
void PolygonObject::vulcanize()
{
    qDebug("PolygonObject vulcanize()");
    updateRubber();

    setObjectRubberMode(OBJ_RUBBER_OFF);
}