From: Olivier Andrieu <oandrieu at nerim.net>
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Date: Wed, 22 Mar 2006 10:54:49 +0100
To: Erik de Castro Lopo <ocaml-erikd at mega-nerd.com>
Cc: lablgtk at math.nagoya-u.ac.jp
Subject: Re: Box packing
In-Reply-To: <20060322192654.172c7ea3.ocaml-erikd at mega-nerd.com>
References: <20060322192654.172c7ea3.ocaml-erikd at mega-nerd.com>
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 Erik de Castro Lopo [Wednesday 22 March 2006] :
 >
 > Hi all,
 > 
 > Some time ago I did some coding with the GTK+ widgets in C. I am
 > now trying to do something an Ocaml and I'm not finding it any
 > easier than it was in C :-).
 > 
 > I'm basically trying to construct something like a text editor
 > with a menubar at the top, a text are in the middle and scroll
 > bars to the right and bottom.
 > 
 > I've tried a bunch of different packing schemes but I have yet
 > to find a configuration that work as I would like it to under
 > window resizing operations.

The usual way to contol this is via the optional arguments of the
#pack method of GPack.hbox and GPack.vbox. In lablgtk, the default
value for `expand' is false and for `fill' true (but the fill argument
is ignored when expand is false). 

I'd say on usually wants to have pack at least one child with `expand'
turned on; in your text editor example, that would be the text area
(or rather its parent container).

See the gtk tutorial for a demo of how these options affect packing:
http://www.gtk.org/tutorial/x383.html 

-- 
   Olivier