automatic rotate screen on meamo

[fily_love]

i know maemo5 had a feature the same as iPhone ,
i just says it: "automatic rotate screen" (because i am not a english native guy, so i don't know how to say it very clearly)
i want my apps could rotate on screen with automatic as well,
does there have some public fuction to handle it??

[rkurvakat]

i know maemo5 had a feature the same as iPhone ,
i just says it: "automatic rotate screen" (because i am not a english native guy, so i don't know how to say it very clearly)
i want my apps could rotate on screen with automatic as well,
does there have some public fuction to handle it??

have a look here
http://qt.nokia.com/doc/qt-maemo-4.6...-rotation.html

[divanov]

Please, take into account that auto orientation has negative impact on a battery life as it's actively polling accelerometer data.

[denniswang]

have a look here
http://qt.nokia.com/doc/qt-maemo-4.6...-rotation.html

thank you for your help, but this example need click button to set the rotate screen, i want to automatic set rotate screen without manual on the different rotate. It is gravitational.

[divanov]

Autorotation is enabled with one line of the code, no buttons involved

window->setAttribute(Qt::WA_Maemo5AutoOrientation, true);

[denniswang]

Autorotation is enabled with one line of the code, no buttons involved

window->setAttribute(Qt::WA_Maemo5AutoOrientation, true);

hi, i have add this line in my code, but it doesn't work on the real devices(N900), so can you help me continue?

[divanov]

hi, i have add this line in my code, but it doesn't work on the real devices(N900), so can you help me continue?

It works fine on my N900 with Qt 4.6 installed

#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();
}

[denniswang]

It works fine on my N900 with Qt 4.6 installed

#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();
}

sorry man, it doesn't work on my N900. maybe there are some different with QT and devices version?
my qt version is 4.6.2, i don't know my N900 version.

[divanov]

my qt version is 4.6.2, i don't know my N900 version.

Check it with

dpkg -l "libqt4-*"

in XTerminal.

[denniswang]

Check it with

dpkg -l "libqt4-*"

in XTerminal.

libqt4-maemo5- is 4.6.2 and libqt4-core,libqt4-dbus, libqt4-dev,libqt4-sql, libqt4-sql-sql,libqt4-xml is 4.5.3
how about yours? my problem is here?

[divanov]

libqt4-maemo5- is 4.6.2 and libqt4-core,libqt4-dbus, libqt4-dev,libqt4-sql, libqt4-sql-sql,libqt4-xml is 4.5.3
how about yours? my problem is here?

You must have the same library versions of Qt in scratchbox and on the device. Qt 4.5.3 and 4.6.2 are not binary compatible.

[denniswang]

ok, i will try again, thank you very much

[denniswang]

hi Divanov, i had implemented the feature that i want with QDBusConnection. so any way thank you for your great help.
One more thing, ftball and fily_love is not me, they are my workmate

[divanov]

hi Divanov, i had implemented the feature that i want with QDBusConnection. so any way thank you for your great help.

You can use raw MCE dbus calls to achieve the same, but it's a strange choice since Qt provides so nice wrapper.

[Klen]

I have the same problem. The setAttribute(Qt::WA_Maemo5AutoOrientation, true) does not work. I can manually get the dispaly into landscape or portrait, but aoutomatic rotate does not work.

I also tried the Maemo 5 Rotation Example. My QT libs are the same version as can be seen bellow.

Question:
Which of the packages implements the auto-rotate functionality?

QT libs on my scratchbox:

rc  libqt4-assistant                4.5.3~git20090723-0maemo6+0m5   Qt 4 assistant module
ii  libqt4-core                     4.6.2~git20100224-0maemo1+0m5   Qt 4 core module
ii  libqt4-dbus                     4.6.2~git20100224-0maemo1+0m5   Qt 4 D-Bus module
rc  libqt4-designer                 4.5.3~git20090723-0maemo6+0m5   Qt 4 designer module
ii  libqt4-dev                      4.6.2~git20100224-0maemo1+0m5   Qt 4 development files
ii  libqt4-gui                      4.6.2~git20100224-0maemo1+0m5   Qt 4 GUI module
rc  libqt4-help                     4.5.3~git20090723-0maemo6+0m5   Qt 4 help module
ii  libqt4-maemo5                   4.6.2~git20100224-0maemo1+0m5   Qt 4 Maemo5 module
ii  libqt4-maemo5-core              4.6.2~git20100212-0maemo1       Qt 4 core module
ii  libqt4-maemo5-dbus              4.6.2~git20100212-0maemo1       Qt 4 D-Bus module
ii  libqt4-maemo5-dev               4.6.2~git20100212-0maemo1       Qt 4 development files
ii  libqt4-maemo5-gui               4.6.2~git20100212-0maemo1       Qt 4 GUI module
ii  libqt4-maemo5-maemo5            4.6.2~git20100212-0maemo1       Qt 4 Maemo5 module
ii  libqt4-maemo5-multimedia        4.6.2~git20100212-0maemo1       Qt 4 Multimedia Libraries
ii  libqt4-maemo5-network           4.6.2~git20100212-0maemo1       Qt 4 network module
ii  libqt4-maemo5-opengl            4.6.2~git20100212-0maemo1       Qt 4 OpenGL module
ii  libqt4-maemo5-opengl-dev        4.6.2~git20100212-0maemo1       Qt4 OpenGL development files
ii  libqt4-maemo5-phonon            4.6.2~git20100212-0maemo1       Qt 4 Phonon Libraries
ii  libqt4-maemo5-script            4.6.2~git20100212-0maemo1       Qt 4 script module
ii  libqt4-maemo5-sql               4.6.2~git20100212-0maemo1       Qt 4 SQL module
ii  libqt4-maemo5-sql-sqlite        4.6.2~git20100212-0maemo1       Qt 4 SQLite plugin
ii  libqt4-maemo5-svg               4.6.2~git20100212-0maemo1       Qt 4 SVG module
ii  libqt4-maemo5-test              4.6.2~git20100212-0maemo1       Qt 4 test module
ii  libqt4-maemo5-webkit            4.6.2~git20100212-0maemo1       Qt 4 WebKit module
ii  libqt4-maemo5-xml               4.6.2~git20100212-0maemo1       Qt 4 XML module
ii  libqt4-maemo5-xmlpatterns       4.6.2~git20100212-0maemo1       Qt 4 XML Patterns module
ii  libqt4-multimedia               4.6.2~git20100224-0maemo1+0m5   Qt 4 Multimedia Libraries
ii  libqt4-network                  4.6.2~git20100224-0maemo1+0m5   Qt 4 network module
ii  libqt4-opengl                   4.6.2~git20100224-0maemo1+0m5   Qt 4 OpenGL module
pn  libqt4-opengl-dev               <none>                          (no description available)
ii  libqt4-phonon                   4.6.2~git20100224-0maemo1+0m5   Qt 4 Phonon Libraries
ii  libqt4-script                   4.6.2~git20100224-0maemo1+0m5   Qt 4 script module
ii  libqt4-sql                      4.6.2~git20100224-0maemo1+0m5   Qt 4 SQL module
ii  libqt4-sql-sqlite               4.6.2~git20100224-0maemo1+0m5   Qt 4 SQLite plugin
ii  libqt4-svg                      4.6.2~git20100224-0maemo1+0m5   Qt 4 SVG module
ii  libqt4-test                     4.6.2~git20100224-0maemo1+0m5   Qt 4 test module
ii  libqt4-webkit                   4.6.2~git20100224-0maemo1+0m5   Qt 4 WebKit module
ii  libqt4-xml                      4.6.2~git20100224-0maemo1+0m5   Qt 4 XML module
ii  libqt4-xmlpatterns              4.6.2~git20100224-0maemo1+0m5   Qt 4 XML Patterns module

QT libs on my N900:

ii  libqt4-appdownloader-comm       0.0.4                           library for communication with maemo.org downloads REST API
ii  libqt4-core                     4.6.2~git20100224-0maemo1+0m5   Qt 4 core module
ii  libqt4-dbus                     4.6.2~git20100224-0maemo1+0m5   Qt 4 D-Bus module
ii  libqt4-dev                      4.6.2~git20100224-0maemo1+0m5   Qt 4 development files
ii  libqt4-gui                      4.6.2~git20100224-0maemo1+0m5   Qt 4 GUI module
ii  libqt4-maemo5                   4.6.2~git20100224-0maemo1+0m5   Qt 4 Maemo5 module
ii  libqt4-maemo5-core              4.6.2~git20100212-0maemo1       Qt 4 core module
ii  libqt4-maemo5-dbus              4.6.2~git20100212-0maemo1       Qt 4 D-Bus module
ii  libqt4-maemo5-gui               4.6.2~git20100212-0maemo1       Qt 4 GUI module
ii  libqt4-maemo5-maemo5            4.6.2~git20100212-0maemo1       Qt 4 Maemo5 module
ii  libqt4-maemo5-network           4.6.2~git20100212-0maemo1       Qt 4 network module
ii  libqt4-maemo5-opengl            4.6.2~git20100212-0maemo1       Qt 4 OpenGL module
ii  libqt4-maemo5-phonon            4.6.2~git20100212-0maemo1       Qt 4 Phonon Libraries
ii  libqt4-maemo5-svg               4.6.2~git20100212-0maemo1       Qt 4 SVG module
ii  libqt4-maemo5-webkit            4.6.2~git20100212-0maemo1       Qt 4 WebKit module
ii  libqt4-maemo5-xml               4.6.2~git20100212-0maemo1       Qt 4 XML module
ii  libqt4-maemo5-xmlpatterns       4.6.2~git20100212-0maemo1       Qt 4 XML Patterns module
ii  libqt4-multimedia               4.6.2~git20100224-0maemo1+0m5   Qt 4 Multimedia Libraries
ii  libqt4-network                  4.6.2~git20100224-0maemo1+0m5   Qt 4 network module
ii  libqt4-opengl                   4.6.2~git20100224-0maemo1+0m5   Qt 4 OpenGL module
un  libqt4-opengl-dev               <none>                          (no description available)
ii  libqt4-phonon                   4.6.2~git20100224-0maemo1+0m5   Qt 4 Phonon Libraries
ii  libqt4-script                   4.6.2~git20100224-0maemo1+0m5   Qt 4 script module
ii  libqt4-sql                      4.6.2~git20100224-0maemo1+0m5   Qt 4 SQL module
ii  libqt4-sql-sqlite               4.6.2~git20100224-0maemo1+0m5   Qt 4 SQLite plugin
ii  libqt4-svg                      4.6.2~git20100224-0maemo1+0m5   Qt 4 SVG module
ii  libqt4-test                     4.6.2~git20100224-0maemo1+0m5   Qt 4 test module
ii  libqt4-webkit                   4.6.2~git20100224-0maemo1+0m5   Qt 4 WebKit module
ii  libqt4-xml                      4.6.2~git20100224-0maemo1+0m5   Qt 4 XML module
ii  libqt4-xmlpatterns              4.6.2~git20100224-0maemo1+0m5   Qt 4 XML Patterns module

Thanks,
Klen