Message-ID: <42F74918.4090503 at ath.cena.fr>
Date: Mon, 08 Aug 2005 13:59:20 +0200
From: Yann LE FABLEC <yann.le-fablec at cena.fr>
MIME-Version: 1.0
To: LablGTK Mailing List <lablgtk at math.nagoya-u.ac.jp>
Subject: How to temporarily disable GTree sorting ?
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Dear all,

I am trying to use GTree.view/model in order to display informations as
a list.
Everything works fine except when I use sorting :
1. First, I create a model + a view, insert my elements in the model
2. Using set_sort_func & set_sort_column_id I tell the view to allow
    the user to sort data in the GTree.view.
3. Then later I want to display new data in my model/view : I first
    detach the model from the view, clear the model and insert my new
    elements.

The problem is that this third step is extremely slow as, as stated
in the Tree View tutorial, the elements are sorted after each
insertion. In this tutorial, one can read that to get rid of that
slowdown problem, one has to "make sure that sorting is disabled while 
you are doing your mass insertions".
(See : 
http://compiler.kaist.ac.kr/~shoh/ocaml/lablgtk2/treeview-tutorial/ch03s03.html#sec-treestore-adding-many-rows).

I can't find the way to achieve this. I have searched through this
mailing-list, on Internet, in the GTK+-2.0 C API reference but I was not
able to find how to temporarily disable the tree sorting while I insert
new elements in it.

Does someone know how to do this ??? Help would be greatly appreciated,

Yann.