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Java > Open Source Codes > org > nightlabs > editor2d > command > CreateGuideCommand


1 /* *****************************************************************************
2  * NightLabs Editor2D - Graphical editor framework *
3  * Copyright (C) 2004-2005 NightLabs - http://NightLabs.org *
4  * Project author: Daniel Mazurek <Daniel.Mazurek [at] nightlabs [dot] org> *
5  * *
6  * This library is free software; you can redistribute it and/or *
7  * modify it under the terms of the GNU Lesser General Public *
8  * License as published by the Free Software Foundation; either *
9  * version 2.1 of the License, or (at your option) any later version. *
10  * *
11  * This library is distributed in the hope that it will be useful, *
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
14  * Lesser General Public License for more details. *
15  * *
16  * You should have received a copy of the GNU Lesser General Public *
17  * License along with this library; if not, write to the *
18  * Free Software Foundation, Inc., *
19  * 51 Franklin St, Fifth Floor, *
20  * Boston, MA 02110-1301 USA *
21  * *
22  * Or get it online : *
23  * http://www.gnu.org/copyleft/lesser.html *
24  * *
25  * *
26  ******************************************************************************/
27
28 package org.nightlabs.editor2d.command;
29
30 import org.eclipse.gef.commands.Command;
31
32 import org.nightlabs.editor2d.Editor2DFactory;
33 import org.nightlabs.editor2d.EditorGuide;
34 import org.nightlabs.editor2d.EditorPlugin;
35 import org.nightlabs.editor2d.EditorRuler;
36
37 public class CreateGuideCommand
38 extends Command
39 {
40   private EditorGuide guide;
41   private EditorRuler parent;
42   private int position;
43
44   public CreateGuideCommand(EditorRuler parent, int position) {
45     super(EditorPlugin.getResourceString("command.create.guide"));
46     this.parent = parent;
47     this.position = position;
48   }
49
50   public boolean canUndo() {
51     return true;
52   }
53
54   public void execute()
55   {
56     if (guide == null)
57       guide = Editor2DFactory.eINSTANCE.createEditorGuide();
58     
59     guide.setPosition(position);
60     guide.setHorizontal(!parent.isHorizontal());
61     parent.addGuide(guide);
62   }
63
64   public void undo() {
65     parent.removeGuide(guide);
66   }
67
68 }
69
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