Re: Qt terminal

[Philipp K. J. <ja...@ie...>]

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?

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
> > >
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