OpenGL toolkits (Re: [sldev] Qt for the viewer)

[Jordi Polo]

IMHO, Qt is more than an OpenGL toolkit. It is almost accidentally also able
to render widgets on OpenGL.
I see the following interesting features on Qt:

- Running on win, mac, linux (I guess other options also achieve this)
-  Styles engine (at least libufo should be able to do this)
- Integrated HTML rendering engine webkit (I guess ligufo has Gecko)
- Model/ view programming for widgets
- Containers (ala libstdc++), classes to access the filesystem, sockets,
etc.
- Multithread and parallel programming helper classes
- XML and Phonon modules that may be used instead of other current
dependences
- Big community (KDE, thats it)
- In development for a number of years now, Ive been said it is pretty
optimized.

Qt can substitute (in the code, Qt itself may depend on those libraries) :
- Apache portable runtime  (sockets and networking classes)
- Glib
- GTK+
- Multimedia related libraries (Phonon) I am not very sure how powerful is
Phonon though, never used it. It may not be enough for viewers needs.
- Freetype? (not sure)
- SDL
- mozlib (when the embedded webkit is ready)

Qt would provide one API, signals between components and easy threading for
all these.


On Wed, Jul 16, 2008 at 9:14 PM, Argent Stonecutter <secret.argent at gmail.com>
wrote:

> On 2008-07-15, at 15:54, JB Kraft wrote:
>
>> Qt is ok, but personally I find WxWidgets much easier to deal with. MOC is
>> a strange creature. That said, I rather like the current ui tools. If as
>> much time were put into a good refactoring and decoupling, making the
>> current ui tools into an independant library as it would take to port to Qt
>> or Wx, I think that would be a very useful toolkit for cross-plat GL work.
>> Perhaps that's generous though ;)
>>
>
> I had a similar idea a year or so ago, and started to tear into the
> toolkit, but decided it was really too specialized to be a good starting
> point. It could do with a refactoring, but I don't think it would really
> attract much outside attention: there are already a few OpenGL GUI toolkits
> it'd be competing against.
>
> A couple that look interesting:
>
> http://libufo.sourceforge.net/ - OpenGL UI toolkit that uses CSS and XUL
> forms, and it can be dropped into an existing openGL context.
> http://www.fltk.org/ - This one's been around longer, and may be more
> mature.
>
> Both are LGPL and thus compatible with Second Life's licensing ... both the
> open source and commercial versions.
>
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-- 
Jordi Polo Carres
NLP laboratory - NAIST
http://www.bahasara.org
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