LXDE Previews Port From Gtk+ 2 to Qt
An anonymous reader writes "As the PCMan at the LXDE blog lets us know, the work on a port of LXDE to the Qt platform is showing promise. As the developers stand to face the deprecation of Gtk+ 2, migrating away from the popular toolkit will soon be necessary. The developers note that migration to Qt 'will cause mild elevation of memory usage compared to the old Gtk+ 2 version,' but clarify that a similar increase in resource usage is expected of a migration to Gtk+ 3. Yet, the port to Qt is ongoing, and clearly taking shape, as the screenshot shows. An official release might be a while, though. As an update to the post notes, the plan is to use the recently released Qt 5.1 in the future, which we might not see in distros for some time."
They are also cooperating with the Razor Qt desktop. From the weblog post: "...We subscribed razor-qt google groups and discussed about possible cooperation earlier. Currently, the ported LXDE components are designed with Razor-Qt in mind. For example, PCManFM-Qt and LxImage-Qt will reads razor-qt config file when running in razor-qt session. We’ll try to keep the interchangeability between the two DEs. Further integration is also possible. Actually, I personally am running a mixed desktop with LXDE-Qt + Razor-Qt components on my laptop. Components from the both DE blends well."
XFCE is doing fine with the transition so I assume it wasn't too much of a problem. Also I quoted the guy who made the switch for LXDE and he didn't mention that issue. He mostly thinks that GTK3 is the same weight at Qt and since he liked Qt better once they were the same weight it became the better choice. Since GTK3 isn't that similar to 2 it was roughly an equal porting effort and that's why he switched.
Most importantly, the KDE community, way back when Nokia bought Trolltech, has managed to get in the contract a clause (still valid under Digia ownership) that says if Nokia/Digia doesn't release new versions of Qt under a free license (currently it is - to correct you a bit there - under the LGPLv2.1) for 12 months, then everything is automatically given to the community under a BSD license.
http://www.kde.org/community/whatiskde/kdefreeqtfoundation.php