1 /*****************************************************************************
2 * Virtual Mockup for Machine Vision
3 * Copyright (C) 2001-2003 Fabio R. de Miranda, João E. Kogler Jr.,
4 * Carlos S. Santos.
5 * Virtual Mockup for Machine Vision Project funded by SENAC-SP
6 *
7 * Permission is granted to redistribute and/or modify this
8 * software under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This software 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 GNU
15 * Lesser General Public License (http://www.gnu.org/copyleft/lesser.html)
16 * for more details.
17 *
18 *****************************************************************************/
19
20 package camera3d.action;
21
22
23 import camera3d.VcView;
24
25
26 /***
27 * Action for changing the field of view parameter of a given VcView.
28 * @author Fábio Roberto de Miranda
29 * @version 1.0
30 */
31
32 public class FieldOfViewAction extends VcViewAction {
33
34 private VcView view;
35 private double value;
36 private double oldValue;
37
38 public FieldOfViewAction(VcView view, double value) {
39 this.view = view;
40 this.value = value;
41 }
42
43 public void doAction(ActionExecutor executor) {
44 oldValue = this.view.getFieldOfView();
45 this.view.setFieldOfView(value);
46 }
47
48 public void undoAction(ActionExecutor executor) {
49 // added 04/09/2002
50 this.view.setFieldOfView(oldValue);
51 }
52
53
54 }
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