[Linaro-dev] Embedded Qt (QWS) packages

Amit Pundir pundiramit at gmail.com
Mon Jun 28 12:59:15 BST 2010


Hi,

On Mon, Jun 28, 2010 at 2:53 PM, David Rusling <david.rusling at linaro.org> wrote:
> Alexandros,
>    I suspect that the interesting question is how QT interacts with Clutter
> / OpenGL(ES) not how it interacts with X.

There is a Clutter-Qt port which embed the default ClutterStage into a
parent QtWidget. It has a dependency on X11 though.
http://git.clutter-project.org/clutter-qt/

Qt itself provides a good support for OpenGL-ES 1.1/2.0 and OpenVG
1.0/1.1 painting profiles.

>  I see a swing away from X, not
> an integration with it, in all the upcoming dominant platforms.   That said,
> a native embedded QT stack is an interesting 'head' and, providing good test
> cases etc.
> Dave

regards,
Amit Pundir


>
> On 28 June 2010 08:44, Alexandros Frantzis <alexandros.frantzis at linaro.org>
> wrote:
>>
>> On Sun, Jun 27, 2010 at 11:34:21AM +0200, Loïc Minier wrote:
>>
>> >  Is there a X11 server which can run (perhaps windowed) under QWS?  This
>> >  would be great for compatibility with X apps.  Something like
>> >  Xephyr/Xnest perhaps?
>>
>> The GUI part of all applications that run under QWS must be written in
>> pure Qt. Unfortunately, I don't know of such an X11 server.
>>
>> The whole Qt/QWS environment is really targeted for special purpose
>> systems with strict memory constraints that run dedicated UIs. It is not
>> designed to be able to interact with other GUI toolkits and
>> applications.
>>
>> There is a very old (but still relevant) discussion about this issue:
>>
>> http://lists.trolltech.com/qt-embedded-interest/2002-10/msg00117.html
>>
>> The bottom line is that if there is a need for both Qt and general X11
>> support in a resource-constrained environment, the only feasible way is
>> to use Qt/X11 over a lightweight X11 server (eg KDrive).
>>
>> Thanks,
>> Alexandros
>>
>> _______________________________________________
>> Linaro-dev mailing list
>> Linaro-dev at lists.linaro.org
>> http://lists.linaro.org/mailman/listinfo/linaro-dev
>
>
>
> --
> David A Rusling
> CTO, Linaro
>
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>



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