(***********************************************************************)

(*                                                                     *)

(*                 MLTk, Tcl/Tk interface of OCaml                     *)

(*                                                                     *)

(*    Francois Rouaix, Francois Pessaux, Jun Furuse and Pierre Weis    *)

(*               projet Cristal, INRIA Rocquencourt                    *)

(*            Jacques Garrigue, Kyoto University RIMS                  *)

(*                                                                     *)

(*  Copyright 2002 Institut National de Recherche en Informatique et   *)

(*  en Automatique and Kyoto University.  All rights reserved.         *)

(*  This file is distributed under the terms of the GNU Library        *)

(*  General Public License, with the special exception on linking      *)

(*  described in file LICENSE found in the OCaml source tree.          *)

(*                                                                     *)

(***********************************************************************)

open Camltk ;;

let top_w = opentk () ;;

let buffer = String.create 256 ;;

let (fd_in, fd_out) = Unix.pipe () ;;

let text0_w = Text.create top_w [] ;;

let entry0_w = Entry.create top_w [] ;;

let button0_w = Button.create top_w [Text "Quit"; Command (fun _ -> exit 0)] ;;

Fileevent.add_fileinput fd_in (fun _ ->

                  let n = Unix.read fd_in buffer 0 (String.length buffer) in

                  let txt = String.sub buffer 0 n in

                  Text.insert text0_w (TextIndex (End, [])) txt []) ;;

let send _ =

 let txt = Entry.get entry0_w ^ "\n" in

 Entry.delete_range entry0_w (At 0) End ;

 ignore (Unix.write fd_out txt 0 (String.length txt));;

bind entry0_w [([], KeyPressDetail "Return")] (BindSet ([], send)) ;

pack [text0_w; entry0_w; button0_w][Side Side_Top; Fill Fill_X; Expand true] ;;

mainLoop () ;;