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-(***********************************************************************)
-(* *)
-(* MLTk, Tcl/Tk interface of Objective Caml *)
-(* *)
-(* 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 Objective Caml source tree. *)
-(* *)
-(***********************************************************************)
-open Camltk
-open Widget
-open Tkanim
-open Tk
-
-let main () =
- let file = ref "" in
- Arg.parse [] (fun s -> file := s)
- "usage: gifanimtest file (animated gif)\n\
- \tbutton 1 toggles the animation,\n\
- \tbutton 2 displays the next frame,\n\
- \tbutton 3 quits.";
- let t = openTk () in
-
- (* First of all, you must initialize the extension. *)
- Tkanim.init ();
-
- prerr_endline !file;
-
- (* Then load the animated gif. *)
- let anim = Tkanim.create !file in
- prerr_endline "load done";
-
- (* Check it is really animated or not. *)
- match anim with
- | Still x ->
- (* Use whatever you want in CamlTk with this ImagePhoto. *)
- prerr_endline "Sorry, it is not an animated GIF."
-
- | Animated x ->
- (* OK, let's animate it. *)
- let l = Label.create t [] in
- pack [l] [];
-
- (* animate returns an interface function. *)
- let f = animate l x in
-
- (* Button1 toggles the animation *)
- bind l [[], ButtonPressDetail 1] (BindSet ([], (fun _ ->
- f false)));
-
- (* Button2 displays the next frame. *)
- bind l [[], ButtonPressDetail 2] (BindSet ([], (fun _ ->
- f true)));
-
- (* Button3 quits. *)
- bind l [[], ButtonPressDetail 3] (BindSet ([], (fun _ ->
- closeTk ())));
-
- (* start the animation *)
- f false;
-
- (* Go to the main loop. *)
- mainLoop ()
-
-let _ = Printexc.print main ()