[osg-submissions] fullscreen and windowed on gnome desktop

[Cedric Pinson]

Hi
It's a patch to have fullscreen toggle working on gnome, it concerns 
only X11 implementation.
the problem:
when i run osgviewer i can't go in windowed mode. When i want to go in 
windowed mode the screen flash i see the viewport (only the gl viewport 
not the window) to have the size of the window size asked by osg and the 
frame after. It fails and rest in fullscreen. After some test i saw that 
the problem was the MOTIF decoration setup. Metacity seems to not handle 
correctly the window if there is no decoration.

answer:
The idea is to not use the MOTIF decoration setup, and to send an ICCM 
fullscreen event when it's appropriate. It means if the window has the 
size of the screen and the decoration wanted is false then we send the 
fullscreen event, else we send the event to disable the fullscreen mode. 
The problem of this method is you can't have a window in a windowed 
mode  without decoration. It's not a perfect solution.

I tested it with compositviewer and osgviewer and it works great. I know 
that most of WM now use ICCM features so i hope it will not be a problem 
on other WM. Some feedback will be appreciate on others windows manager.

Thanks to ldelgass at gmail.com for the piece of code.


Cheers


-- 
+33 (0) 6 63 20 03 56  Cedric Pinson mailto:mornifle at plopbyte.net http://www.plopbyte.net


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