Hi, results! I'm finally content with how the code looks and feels :-)
Comparison: before: http://c-palb.de/~max/before.ogg after: http://c-palb.de/~max/after.ogg The videos don't do the change justice, it feels _much_ more natural. I had to patch the respective input drivers, the server itself (to support non-integrating axes) and Qt4. The patches can be found in my github repository (http://github.com/x-quadraht/pscroll). They apply against the stable Ubuntu Lucid versions of the packages. I've set up a small ppa with binary packages (https://launchpad.net/~max-x- quadraht/+archive/pscroll) but it's not up to date yet (building Qt4 on the launchpad build farm takes _ages_). The thing I would like to work on now is filtering of the valuator events. As you may notice in the "after" video, the touchpad even picks up some small wiggles of my finger when I try to hold the position. I imagine the "acceleration contexts" Simon mentioned, with a non-linear curve, will help to surpress these twitches. I want to avoid to set a hard minimum amount of scrolling. I will look into "wheel acceleration" next... As I have already mentioned, the change in GTK seems much more complicated than in Qt4. Qt has a really nice cross-platform "QScrollEvent" which has a delta field with defined units. All GTK (GDK really) has to offer is "GdkScrollEvent" which is a counter of how many scroll button presses to scroll :-( Max _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel