[ruby-talk:02291] Re: custom type system?

From: Conrad Schneiker <[e-mail]>

> From: Yasushi Shoji <[e-mail]>
>
> > # I'm Cc'ing this to ruby-talk, so someone, who knows ruby and Gtk+
> > # better than me, can correct me if I'm wrong :)
> >
> > I'm not a gtk developer nor I have done any big gtk project.  All I
> > have done is a few patches for gtk binding for Ruby.  So I might be
> > completely misunderstanding the subject... but, here I goes.
> >
> > After we move type system to glib, will it be possible to use custom
> > type system in Gtk+?
> >
> > there are many languages that support object system with language
> > core. e.g. C++, perl, python, ruby and more.  I just feel that it
> > would be better to use language feature for it.
> >
> > my understanding is that because Gtk+ is written in C, and C doesn't
> > really support object orientation by itself, Gtk+ introduced type
> > system.  if it's correct, why not allow to use language's type system?
> >
> > what I've been thinking is that Gtk+ could be separated to three
> > parts.
> >
> > - API (which is language binding layer)
> > - Widget (where actual work is done)
> > - Core (type system, signal system, etc)
> >
> > would it help language bindings if Gtk+ can use custom systems in Core?
> >
> > I don't know any other language binding, but ruby/gtk already use
> > custom signal handler, which handle not C function pointer but Ruby's
> > own anonymous function.
> >
> > I don't think I have enough knowledge of Gtk+ internals, but... Any
> > comment will be appreciated.
>
> Well, I know even less at this point, but since I just started using
> Ruby/GTK+, I am certainly interested in this. I don't know if this would
be
> any help, but since Python faces similar issues, here is a pointer to some
> of their work:
>
>     http://www.daa.com.au/~james/pygtk/
>
> ========================
> <...>
> PyGTK - Python Bindings for the GTK Widget Set
>
> PyGTK is a set of bindings for the GTK widget set. It provides an object
> oriented interface that is slightly higher level than the C one. It
> automatically does all the type casting and reference counting that you
> would have to do normally with the C API. I have also written GNOME
> bindings. You can find more information about them here.
> <...>
> ===========================

Oops, forgot to include this (although it is only partly completed):

    http://laguna.fmedic.unam.mx/~daniel/pygtutorial/pygtutorial/index.html

=============================
Pygnome tutorial
<...>
In this tutorial, you will receive and overview of how to create graphic
user interfaces (GUI) using pygnome and pygtk.
<...>
=============================

> (Isn't Red Hat one of the places that uses Python for a lot of
configuration
> GUI stuff?)
>
> Hope this helps,
> Conrad