Hey list, I have been working on supporting PyQt widgets and the qtgui sinks in the Gnuradio Companion. Get the code on my wip/qtgui/grc branch on jblum.git http://gnuradio.org/cgit/jblum.git/log/?h=wip/qtgui/grc
Available widgets: * qtgui plotter (dft, scope, etc) * tabbed panel * slider * combo box * radio buttons * text entry * label 1) The slider adds a new requirement of PyQwt (python Qwt bindings). Qwt should already be installed for the qtgui sinks themselves. 2) The qtgui and wxgui widgets are distinctly separated. Previously, the "variable slider" was a wx slider form. Now, there is a WX GUI Slider and a QT GUI Slider. And the generate options now have a QT GUI option. You cannot mix and match widgets from different graphics libraries. 3) No attempt was made to make the existence of different graphics toolkits transparent to the user. That would have been a huge pain on my part and I couldn't try new things. If this Qt thing catches on, I am considering a migration script from wx->qt. 4) The Qt widgets in grc do not have a python wrapper/forms library like they do in gnuradio. All the generated code uses the PyQt API directly. This is in-part possible because Qwt supplies its own set of useful wrappers around Qt widgets. Examples: http://qwt.sourceforge.net/sliders.png 5) Each widget block in grc has a gui hint parameter. This parameter is a combination of the grid parameter and notebook parameter seen in the wx widget blocks. It also allowed the implementation code to be a lot more generic. Whats missing? I feel that the widgets still need a bit of polishing. Engineering notation would be nice. I'd like to see features in the wx scope sink brought to the qtgui scope such as trigger modes and multiple channels. I think the qt equivalent of the numbersink would be nice too (and that could use some of those real fancy qwt widets): http://read.pudn.com/downloads186/sourcecode/embed/872381/qwt/doc/images/dials2.png Why qtgui stuff? The WX stuff in gnuradio is fairly polished in comparison; and when it works, it works. But we have seen many issues with wx outside of the linux+x86 world, not to mention opengl issues on the x86. I hope that the qt stuff is a viable, cross platform option for live gnuradio plotting and graphical applications. Please try it out. Feedback is welcome! -Josh _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
