Re: Qt terminal

[nabed <ss...@ol...>]

Hi,

I would like to be able to put three Qt Terms (Gnu Plot) widgets on a single
dialog in my Qt application. I would then like to be able to send gnuplot
commands & data steams these QtGnuPlot widgets and also be able to obtain
information on the where the user has panned to or zoomed to. 

Ideally I would want the QT Term to emit signals on pan & zoom events as I'm
wanting to correlate the pan and zooming across the three QtGnuPlot
widgets/terms. Would this be possible with your QtGnuplot widget?  

When/Where would I be able to obtain your widget. 

Serle


Jérôme Lodewyck-5 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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> 
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