1 (* Copyright (C) 2004, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
26 let toggle_visibility ~(win: GWindow.window) ~(check: GMenu.check_menu_item) =
27 ignore (check#connect#toggled (fun _ ->
28 if check#active then win#show () else win#misc#hide ()));
29 ignore (win#event#connect#delete (fun _ ->
31 check#set_active false;
34 let toggle_win ?(check: GMenu.check_menu_item option) (win: GWindow.window) () =
35 if win#is_active then win#misc#hide () else win#show ();
38 | Some check -> check#set_active (not check#active)
40 let add_key_binding key callback (evbox: GBin.event_box) =
41 ignore (evbox#event#connect#key_press (function
42 | key' when GdkEvent.Key.keyval key' = key ->