From graphics-request at octave dot org Sat Jul 17 14:29:00 2004
Subject: Re: [Bulk] Octave bindings for GTK+
From: Shai Ayal <shaiay at yahoo dot com>
To: Muthiah Annamalai <ec10130 at nitt dot edu>
Cc: graphics at octave dot org
Date: Sat, 17 Jul 2004 22:24:59 +0300

Hi Muthiah

This looks like a fine idea. However may I suggest that if you set about 
writing bindings to some graphics toolkit, it might be best to choose a 
toolkint which natively supports Windows and Mac. I know of at least 
two: fltk and wxwindows. It is hard to imagine, but there is some small 
minority of users who do not run Unix and X :)

	Shai

Muthiah Annamalai wrote:
> Greetings to the  Octave Community.
> Im planning to extend Octave with GTK+ support.
> 
> GNU Octave, is the scientific computation tool that is
> used for BLAS & Linear algebraic computations.
> 
> Currently GNU Octave exists as a an interpreter
> written in C++, with support for a language Octave
> much similar to the language like Matlab.
> 
> However it has severe limitation of not being able
> to integrate a GUI framework for Octave, and remains
> tied down to the simple Text UI.
> 
> Im in looking forward to positively write a {GTK+ [or] GTK#} binding
> for Octave. Please help me by suggesting the steps in
> doing so. All useful pointers, code and samples are welcome.
> 
> Adding GTK+ to octave would definitely add teeth to Octave
> by giving GUI+Scientific computation together like Matlab does.
> 
> In the view of the above idea, I would like to know how language
> bindings work & how I could use the GTK+ accessible from Octave.
> Octave, for the record *does not* support call by reference.
> I have looked into the way Matlab does work around this.
> Its costly, but it passes around the values of the *all widgets*
> to all the function-callbacks registered with the system on compiletime
> and uses a lot of global variables.
> 
> I have Octave sources, GTK+2.4 & pyGTK GtkLisp binding code.
> 
> Greetings to the  GTK Community.
> GNU Octave, as most you will be familiar with,
> is the scientific computation tool that is
> used for BLAS & Linear algebraic computations.
> 
> Currently GNU Octave exists as a an interpreter
> written in C++, with support for a language Octave
> much similar to the language like Matlab.
> 
> However it has severe limitation of not being able
> to integrate a GUI framework for Octave, and remains
> tied down to the simple Text UI.
> 
> Im in looking forward to positively write a {GTK+ [or] GTK#} binding
> for Octave. Please help me by suggesting the steps in
> doing so. All useful pointers, code and samples are welcome.
> 
> Adding GTK+ to octave would definitely add teeth to Octave
> by giving GUI+Scientific computation together like Matlab does.
> 
> In the view of the above idea, I would like to know how language
> bindings work & how I could use the GTK+ accessible from Octave.
> Octave, for the record *does not* support call by reference.
> I have looked into the way Matlab does work around this.
> Its costly, but it passes around the values of the *all widgets*
> to all the function-callbacks registered with the system on compiletime
> and uses a lot of global variables.
> 
> I have Octave sources, GTK+2.4 & pyGTK GtkLisp binding code.
> They have used 'lisp' variant 'scheme' for some 'defs'.
> How does it work to connect GTK+ from a language  like Octave?
> Please guide me with some pointers to related data.
> I have posted this mail to the GTK# list earlier &
> the GTK language-bindings list.
> 
> Thanks in Advance.
> Cheers
> Muthu.
> 
> Life is beautiful.
> http://cybernetics.freewebspace.com
> 
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