Re: Qt terminal

[Ethan A M. <merritt@u.washington.edu>]

On Monday 02 February 2009, Philipp K. Janert wrote:
> 
> I think this is welcome! Thanks, Jerome!
> 
> I have not looked at the code for this patch, but 
> I have programmed Qt before, and I can say that it:
> - works really well
> - is incredibly well documented
> - has a very large set of useful widgets (although
> 	this does not do much for gnuplot right now).
> 
> What would make this really, really cool is if it
> could truly leverage Qt's cross-platform capabilities,
> such that it would become easier to build and install
> gnuplot on Win and the Mac. 
> 
> By the same token, if it does NOT offer this
> cross-platform capability, then I need to understand
> better what this patch does that wxt is not doing
> already. Could you speak to that?

I haven't tried this new driver yet, but if I understood the earlier
description correctly, it probably suffers from exactly the same
problem as wxt on Mac.  The event loop is in a thread, 
and OSX does not like that.  But we'll see.  

	Ethan

> 
> Best,
> 
> 		Ph.
> 
> 
> On Monday 02 February 2009 12:28:26 pm Jérôme Lodewyck wrote:
> > Le lundi 2 février 2009, Ethan A Merritt a écrit :
> > > On Sunday 01 February 2009, Jérôme Lodewyck wrote:
> > > > Hi,
> > > >
> > > > 	I have written a Qt terminal for Gnuplot. My main motivation for doing
> > > > this is that Qt is going to be released under the LGPL, and I far as I
> > > > understood, this license is compatible with Gnuplot.
> > > > 	The terminal is mostly inspired from the wxWidgets terminal (thanks
> > > > Timothée for your hard work !). It is not yet optimized and there are
> > > > still some glitches here and there, but it is mostly feature complete.
> > > > 	If it is of interest for someone, I will be happy to propose a patch.
> > >
> > > Sure, go ahead and post a patch.
> > > It is hard to tell much about how it works by looking only at
> > > screenshots.
> >
> > Ok, the patch is submitted
> >
> > > Please describe more precisely what libraries or environment thie new
> > > terminal would require.
> > > Does it use the KDE libraries, or just Qt?
> > > If one built gnuplot with only the driver, would it be run on, say,
> > > the OpenMoko mobile phone platform?
> > > What about non-linux Qt platforms?
> >
> > It uses Qt 4 libraries. It was developed on Linux with Qt 4.4.3, but in my
> > experience, Qt applications usually work out of the box on any platform
> > supported by Qt (X11, windows, MacOS X, framebuffer linux, windows CE).
> > Only one pat of the terminal makes use of non-Qt functions: the Qt main
> > loop is implemented inside a pthread, which is a problem because
> > 1/ It doesn't work on non-UNIX platforms, but from what I understood from
> > the wx terminal, Windows support would only imply putting #ifdef's around
> > the pthread functions
> > 2/ Qt does not officially support running the main event loop inside a
> > thread; however, I did not experience any problem with this (except that Qt
> > functions should be used with care in the gnuplot thread)
> >
> > Jérôme
> >
> > > 	Ethan
> > >
> > > > Screenshots:
> > > >
> > > > http://lodewyck.free.fr/gp1.png
> > > > http://lodewyck.free.fr/gp2.png
> > > > http://lodewyck.free.fr/gp3.png
> > > >
> > > > Regards,
> > > >
> > > > Jérôme
> > > >
> > > > -----------------------------------------------------------------------
> > > >-- ----- This SF.net email is sponsored by:
> > > > SourcForge Community
> > > > SourceForge wants to tell your story.
> > > > http://p.sf.net/sfu/sf-spreadtheword
> > > > _______________________________________________
> > > > gnuplot-beta mailing list
> > > > gnu...@li...
> > > > https://lists.sourceforge.net/lists/listinfo/gnuplot-beta
> >
> > ---------------------------------------------------------------------------
> >--- This SF.net email is sponsored by:
> > SourcForge Community
> > SourceForge wants to tell your story.
> > http://p.sf.net/sfu/sf-spreadtheword
> > _______________________________________________
> > gnuplot-beta mailing list
> > gnu...@li...
> > https://lists.sourceforge.net/lists/listinfo/gnuplot-beta
> 
> 
> 
> ------------------------------------------------------------------------------
> Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM)
> software. With Adobe AIR, Ajax developers can use existing skills and code to
> build responsive, highly engaging applications that combine the power of local
> resources and data with the reach of the web. Download the Adobe AIR SDK and
> Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com
> _______________________________________________
> gnuplot-beta mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-beta
> 



-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle 98195-7742