Re: [Discuss-gnuradio] A few questions regarding QT GUI development

[Marcus Müller]

Hi George,

It's also my understanding that QT GUI development is underway in future versions of gnuradio.

I'd say it's pretty usable and stable in *current* versions of gnuradio.

It's also my understanding that QT GUI development is underway in future versions of gnuradio.

Have a git blame one the gr-qtgui subdirectory. You'll mainly find Tom as contributor, but of course, a lot of people contribute features, new sinks, bugfixes etc.
So, I'd say, it's an overall community effort.

will "introduce a QT version of GRC" (what does that mean?)

GRC (GNU Radio Companion) is, to date, a GTK application, and there's work going on to "port it" to Qt (I'd rather say, there's someone who's rewriting the GUI part completely, but in effect, it's a port).

gr-qtgui will be switching examples to use gr-qtgui instead of gr-wxgui

Um, I don't understand that, either, but it means that in the future, examples will be based on Qt GUI (rather than WX *or* QT, depending on when/who wrote them).

Functionality I'm most interested in includes X/Y mode for the QT GUI Time Sink and the ability to pause the output of the Time, Frequency, and Waterfall sinks (as is available via the "Stop" button in the WX counterparts.

Have you tried middle mouse button, for example on the waterfall sink?

All in all, the Qt widgets are easier to integrate into "real world" applications, and they are far more easily customized -- a CSS might be all you need.

Greetings,
Marcus

On 03/24/2015 05:04 PM, George Hadley wrote:

Greetings all,

        I recently began using gnuradio and GRC with a pair of USRPs. It's my understanding that plans are underway to ultimately remove WX in v3.9 as a GUI option from gnuradio, and replace it with QT. It's also my understanding that QT GUI development is underway in future versions of gnuradio. I'm interested in attempting to help develop for gnuradio and have forked a copy of the source from github.

        With that in mind, I have a few questions:

1. Who is involved with QT GUI development for gnuradio?
2. What future improvements, especially functionality related, are planned for gnuradio QT? All I have been able to find in the 3.8.0 roadmap is that grc will "introduce a QT version of GRC" (what does that mean?) and that gr-qtgui will be switching examples to use gr-qtgui instead of gr-wxgui. Functionality I'm most interested in includes X/Y mode for the QT GUI Time Sink and the ability to pause the output of the Time, Frequency, and Waterfall sinks (as is available via the "Stop" button in the WX counterparts.
   
3. In looking over the WX and QT GUI options, I personally prefer the layout and functionality of the WX GUI components (specifically, the instrumentation options). Are there any plans to attempt to replicate the layout and options of the WX components? (Perhaps the old WX layout style and functionality are being abandoned for good reason; if that's the case, if anybody could clarify that for me or point me in the right direction I would be most appreciative.)

Thanks everyone, and I look forward to hearing from you!

--George

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