QFileDialog How to hide linux hidden/backup folders (“.folder”)

[toglia3d]

Basically when browsing folders inside a QFileDialog I find very annoying to have everything bloated with hidden or backup folders (don't know how to call them really); specially on "home" where programs leave their data...

Is there a way to prevent these type of folders (the ones who start with a dot) from showing by default on a QFileDialog?

I'm using Qt4.6, getOpenFileName and Ubuntu 10.04.

P.D.: I spent a couple hours looking for this on the web but found nothing.