Date: Tue, 6 Jun 2006 09:08:51 +0200
From: Maxence Guesdon <maxence.guesdon at inria.fr>
To: David MENTRE <dmentre at linux-france.org>
Cc: lablgtk at math.nagoya-u.ac.jp
Subject: Re: How to automatically save windows position/size?
Message-ID: <20060606090851.0ac114be at tintin.inria.fr>
In-Reply-To: <87ac8rze8p.fsf at linux-france.org>
References: <87ac8rze8p.fsf at linux-france.org>
Organization: INRIA
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On Mon, 05 Jun 2006 19:47:18 +0200
David MENTRE <dmentre at linux-france.org> wrote:

> Hello,

Hello,

> I would like to add automatic saving of windows position and size in my
> Lablgtk application: windows are restored to the size and position as
> set at the previous application launch.
> 
> I looked at GTK web site but did not succeed in finding a way to do
> that. Any hint?


Here's how i do in cameleon2:

let handle_window win name =
  let (x,y) = Gdk.Window.get_position win#misc#window in
  let (w,h) = Gdk.Drawable.get_size win#misc#window in

  ignore (win#event#connect#configure
            (fun _ ->
              let (x,y) = Gdk.Window.get_position win#misc#window in
              let (w,h) = Gdk.Drawable.get_size win#misc#window in
              (* update internal information : *)
              set_window_info name (w,h,x,y);
              (* save gui information in a file *)
              save_gui ();
              false
            )
         );

  let (width,height,x,y) =
    try 
    (* retrieve internal information about this window name *)
      get_window_info name 
    with Not_found -> (w,h,x,y)
    in

  win#move ~x ~y ;
  win#resize ~width ~height

So, I store the position and size information about each "named" window
every time it changes, so it is kept aven if the application crashes. (the
name is specific to my application, it must be unique).

I ommited some details about handling the possible offset of x and y due to
the window manager.

Hope this helps,

Maxence

-- 
Maxence Guesdon
http://yquem.inria.fr/~guesdon/
http://devel.inria.fr/rocq/