Extend QProgressBar to allow smooth animations using Qt Animation Framework

Filing this ticket to request extensions be made to QProgressBar to allow attaching Qt Animation Framework
classes to enable smooth animations/movements of the progress bar.

Would be nice to see this in time for KDE 4.5

I tried patches (ugly) with the KDE Oxygen theme ( see http://pastebin.ubuntu.com/366236/ )to get results like you see in my youtube videos:

http://www.youtube.com/watch?v=zrvCprVHqag
http://www.youtube.com/watch?v=xp2aFgtN2No

But while writing this code I realised you need this support baked right into QProgressBar itself.

I am currently working on modifying QProgressBar to simply add setter methods which take animation classes
and do the animation automagically when user simply sets a new flag/property on QProgressBar, but not sure
how long it will take me and that too will be too amateurish.

Hence filing this ticket to request this be added in time to see it in KDE 4.5 (Qt 4.7.x ?)...