def _add_points_for_line(self, start: QPointF, stop: QPointF):
start_points = self._rect_for_point(start)
stop_points = self._rect_for_point(stop)
point_list = []
if start.y() == stop.y():
point_list.extend([
start_points[0], stop_points[1], stop_points[2],
start_points[3]
])
elif start.y() < stop.y():
point_list.extend(start_points[0:2])
point_list.extend(stop_points[1:4])
point_list.append(start_points[3])
else:
point_list.append(start_points[0])
point_list.extend(stop_points[0:3])
point_list.extend(start_points[2:4])
self.screen_polygon = self.screen_polygon.united(
QPolygonF.fromList(point_list))
def _add_points_for_position(self, pos: QPointF):
self.screen_polygon = self.screen_polygon.united(
QPolygonF.fromList(self._rect_for_point(pos)))
def __init__(self, *args, **kwargs):
super(PolyLineItem, self).__init__()
self.points = [get_point(p) for p in args]
self.closed = kwargs.pop('closed')
self._polygon = QPolygonF(QPolygonF.fromList(self.points))
