QGraphicsProxyWidget mouse setting...
QGraphicsScene created the QGraphicsProxyWidget. proxyWidget is set to proxy-> setAcceptedMouseButtons (0). Reducing the size of the widget in the anomalies will result in vertical and horizontal scroll bars on the screen, but will not work until the scroll bar is applied, because the mouse is applied to zero.
How do I use the scrollbar with mouse with setAcceptedMouseButtons (0)?