Set mouse scroll events

When the qscrollview contains too many scroll bars, if you move the cursor to a button inside and scroll the pulley, you can see that qscrollview does not scroll, therefore, we need to add a rolling event for the button.

Note: subtitlepushbutton inherits from qpushbutton, a Custom button class, and then adds a mouse scroll event to it.

Bool subtitlepushbutton: event (qevent * event) {/* If (Event-> type () = qevent: paint) {qpaintevent * E = static_cast <qpaintevent *> (event); paintevent (E); Return true;} else */If (Event-> type () = qevent :: wheel) {qwheelevent * E = static_cast <qwheelevent *> (event); wheelevent (E); Return true;} qpushbutton: event (event); Return true ;}

 

Set mouse scroll events