[Buildroot] basic Qt questions

[Buildroot] basic Qt questions

[Zoran Djordjevic]

I've build linux with GTK support and now I want to try Qt.
I was using TinyX with frame buffer support. So I have directfb
options selected in "Graphic libraries and application" menu.
What I am interested about is the opitons 
(meaning + what to choose) regarding Qt->Graphics drivers 
menu (Linux Framebuffer is default choise but what the rest mean).
Also is there some Qt samples that could be also built - like 
it was the case with GTK samples ?
?
Regards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.busybox.net/pipermail/buildroot/attachments/20121107/928043ad/attachment.html>

[Buildroot] basic Qt questions

[Zoltan Gyarmati]

Hi Zoran,

yes, you can use easily the Linux framebuffer, and also there is a
-> Package Selection for the target
? -> Graphic libraries and applications (graphic/text)
? -> Qt (BR2_PACKAGE_QT [=y])
? ->BR2_PACKAGE_QT_DEMOS

what you can select, and xou can test your fb configuration with the 
applications listed in the qt-4.8.3/demos/embedded library in the Qt 
source tree

The color depth could be a pitfall here, you have to check
the color depth according to your framebuffer settings here:

-> Package Selection for the target
? -> Graphic libraries and applications (graphic/text)
? -> Qt (BR2_PACKAGE_QT [=y])
? -> Gui Module (BR2_PACKAGE_QT_GUI_MODULE [=y])
? -> Pixel depths

about the rest of the drivers you can read a summary here: 
http://doc.qt.digia.com/qt/qt-embedded-displaymanagement.html

good luck!
--
Zoltan Gyarmati


On 11/07/2012 01:56 PM, Zoran Djordjevic wrote:
> I've build linux with GTK support and now I want to try Qt.
> I was using TinyX with frame buffer support. So I have directfb
> options selected in "Graphic libraries and application" menu.
> What I am interested about is the opitons
> (meaning + what to choose) regarding Qt->Graphics drivers
> menu (Linux Framebuffer is default choise but what the rest mean).
> Also is there some Qt samples that could be also built - like
> it was the case with GTK samples ?
> Regards
>
>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

[Buildroot] Basic Qt questions

[Zoran Djordjevic]

I intend to use Qt library, by building? root file sistem with
Qt support. If I build X (Tiny X), does it mean that Qt? will use that 
server ? As much as I understood Qt can run without X in embedded
systems (am I right if I say that it?must use X?in desktop systems), but 
I am interested, if I can "force" it to use X, of course if it has advantages 
over "stand alone" use ?
?
Regards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.busybox.net/pipermail/buildroot/attachments/20121001/94812a19/attachment-0001.html>

[Buildroot] Basic Qt questions

[Yegor Yefremov]

On Mon, Oct 1, 2012 at 7:19 PM, Zoran Djordjevic <djdjdjole@yahoo.com> wrote:
> I intend to use Qt library, by building  root file sistem with
> Qt support. If I build X (Tiny X), does it mean that Qt  will use that
> server ? As much as I understood Qt can run without X in embedded
> systems (am I right if I say that it must use X in desktop systems), but
> I am interested, if I can "force" it to use X, of course if it has
> advantages
> over "stand alone" use ?

Everything depends on what is your application/goal. If you're going
to use only one app, then Qt Embedded would fully sufficient. If
you're going to start many applications, then X11 would be better.
AFAIK Qt still has problems being called from X11, but my info is
about one year old or so.

Yegor