On Saturday, 13 de November de 2010 20:31:52 Arjan van de Ven wrote: > > To be honest, this comes a bit of a surprise. Is it really expected that > > every X11 client application will have to implement their own means for > > rotation, or is the plan for rotation to be eventually implemented the > > XRandR way? > > eventually it has to be done with XRandR for power/performance reasons; > the X server can do this more performance (and thus power) efficient > than the apps can, depending on what > exact hardware you have. (Some graphics hardware can use the new X 1.9 > stuff for doing rotation centrally)
It's implemented by applying a 90° rotation on the world transform in the main
QGraphicsView. So the rotation is entirely done by the application.
Remember that it's not just showing the rotated screen, but also showing the
rotation animation. There's no way to do that with the rotation being done
outside of the application.
--
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
Senior Product Manager - Nokia, Qt Development Frameworks
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