Re: [Discuss-gnuradio] Qt and QWT

[Bob McGwier]

Patrick Strasser wrote:
> Hello!
>
> I've seen some messages reagrding Qt and GNU Radio, and some code in 
> the repository. I'd like to use Qt and QWT. QWT simply looks great and 
> very useful, and I hope to get better performance with Qt compared to Wx.
>
> AFICS the graphical sinks need some way to get the data from a block. 
> Other parts like buttons, check boxes, boxes, labels etc. do not need 
> to interact with GNU Radio flowgraph data (only things like set 
> parameters, reconnect, all kind of 'meta'-manipulation). So I assume 
> one (simply ;-) ) needs to write the glue code for the sinks to get 
> real use of Qt.
>
> I guess I'm not the first one thinking about Qt, but I could not find 
> any rationals for or against. Any ideas, pitfalls/caveats, experiences?

I am really having a problem right now getting Qt 4.3.X to successfully 
compile Qwt under F8 x86_64.  I agree with your assessment that it is 
efficacious for us.  I just do not have all the time I would like to 
work through this for some time to come.  The first task I set for 
myself was to take the new hier block 2 version now that it has 
stablizied and to use the FM stereo receiver as my first example.  I was 
going to use the Qwt radio example to build this radio.  I also wanted 
to add the nascent RDS code to it so we could get that going as well.   
I am uninterested in using Qt 3 for all sorts of reasons.   After this 
example I was going to take what I did and apply it to building a 
serious signal processing tool using GnuRadio and tools we are adding to 
GnuRadio at work in a package that would eventually "sweep"  SkySweep 
capabilities into GnuRadio.  I think as a group, we can exceed the 
capabilities of SkySweep and make all of this capability available in an 
open source version using GnuRadio as a truly killer app.  The timing of 
this was pushed on me (FINALLY) by work beginning on multithreading or 
use of serious concurrency so as to take full advantage of the  
parallelism  available on almost everyone's desktop these days. 
> Patrick
What I need is ten more hours in each day.  My peer on this and I are 
just buried up to our necks at work and I would really love it if you 
took this forward and made a start.

Bob