Unfortunately, a QGraphicsView will not work.
commit164dbfaa915c6503c33254f10d179421797b5e40
authorEthereal <ethereal.visage@gmail.com>
Sun, 16 Jan 2011 20:39:00 +0000 (16 13:39 -0700)
committerEthereal <ethereal.visage@gmail.com>
Sun, 16 Jan 2011 20:39:00 +0000 (16 13:39 -0700)
treed5efc08c35b2e9cb9b4dd9e1682ca5ad3ffffccc
parent1555d38e42ca1d416220bad230b1f8d0dc32881b
Unfortunately, a QGraphicsView will not work.

I stress-tested a QGraphicsView with 40,000 elements, and even with all
optimizations enabled, the best framerate produced is roughly 3 FPS.

Not good enough, so I will simply have to write my own as usual.
visualizer/src/visualization/RenderWidget.cpp