[maemo-developers] Qt Autorotation

[From: Luca Donaggio]

On Wed, May 26, 2010 at 6:27 PM, Felipe Crochik <felipe at crochik.com> wrote:

> I combined the reply to all post:
>
> My application seems to start "autorotating" after I click on the
> application title to show the menu for the first time. I don't have to
> select anything and I don't do anything different on my code about the
> implementation of the menu.
>
> Very odd... I will have to try some different things to see if I can
> isolate
> the problem further.
>
> @Daniil: The test project works fine on my n900
> @Luca: I don't think you need to set on all windows, just the top most
> seems
> to be enough.
> @Attila: I did not know that.
>
> Thank you
> Felipe
>
> -----Original Message-----
> From: Daniil Ivanov [mailto:daniil.ivanov at gmail.com]
> Sent: Wednesday, May 26, 2010 11:53 AM
> To: Felipe Crochik
> Cc: maemo-developers at maemo.org
> Subject: Re: Qt Autorotation
>
> Hi Felipe!
>
> Two things. Autorotation was around since N900 sales release.
> And this test app works for me fine in PR 1.2 without pressing anything.
>
> #include <QApplication>
> #include <QMainWindow>
>
> int
> main (int argc,
>      char **argv)
> {
>    QApplication app(argc, argv);
>    QMainWindow win;
>    win.setAttribute(Qt::WA_Maemo5AutoOrientation, true);
>    win.show();
>
>    return app.exec();
> }
>
> ~Daniil.
>
> On Wed, May 26, 2010 at 6:21 PM, Felipe Crochik <felipe at crochik.com>
> wrote:
> > Now that PR1.2 is out autorotation works!!! Great but.
> > Has anybody figured out how to control the autorotation on the
> application
> > (without the "Ctrl+shift+r")?
> >
> > The WA_Maemo5AutoOrientation only tells "the device" that you want this
> > application to autorotate but the user still needs to press the
> "shortcut"
> > (I have the worst time with my fat fingers) to activate/deactivate it.
> And
> > worst of all you need to do the same every time you start the
> application.
> > At least I would like to allow the user to save as a setting for later...
> >
> > Thanks,
> > Felipe
> >
> > _______________________________________________
> > maemo-developers mailing list
> > maemo-developers at maemo.org
> > https://lists.maemo.org/mailman/listinfo/maemo-developers
> >
>
>
Felipe, you're absolutely right: once set the autorotation flag in the
topmost window of the stack, the others seem  to retain it.
Only issue remaining is that once you open a new stacked window, it starts
in landscape mode, disregarding current device orientation, *but* its child
widgets are layed out respecting the correct screen proportions.
I can check for screen geometry and set the landscape or portrait flag
accordingly, but I'm wondering if this will disable the accelerometers from
then on (ie: overriding the autorotation flag set before).
Any clue on this?

-- 
Luca Donaggio
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