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


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.DrawComponent;
33 import org.nightlabs.editor2d.DrawComponentContainer;
34 import org.nightlabs.editor2d.EditorPlugin;
35
36
37 public class DrawComponentReorderCommand
38 extends Command
39 {
40   private int oldIndex;
41   private int newIndex;
42   private DrawComponent child;
43   private DrawComponentContainer parent;
44   private DrawComponentContainer oldParent;
45
46   public DrawComponentReorderCommand(DrawComponent child, DrawComponentContainer parent, int newIndex )
47   {
48     super(EditorPlugin.getResourceString("command.reorder.drawcomponent"));
49     this.child = child;
50     this.parent = parent;
51     this.newIndex = newIndex;
52   }
53
54   public void execute()
55   {
56     // if the same parent just change index in list
57 if (parent.equals(child.getParent())) {
58         oldIndex = parent.getDrawComponents().indexOf(child);
59 // parent.getDrawComponents().remove(child);
60 // parent.getDrawComponents().add(newIndex, child);
61 parent.removeDrawComponent(child);
62         parent.addDrawComponent(child, newIndex);
63     }
64     else {
65         oldParent = child.getParent();
66         oldIndex = oldParent.getDrawComponents().indexOf(child);
67 // oldParent.removeDrawComponent(child);
68 // parent.addDrawComponent(child, newIndex);
69 oldParent.removeDrawComponent(child);
70         parent.addDrawComponent(child, newIndex);
71     }
72   }
73   
74   public void undo()
75   {
76     if (oldParent == null) {
77 // parent.getDrawComponents().remove(child);
78 // parent.getDrawComponents().add(oldIndex, child);
79 parent.removeDrawComponent(child);
80         parent.addDrawComponent(child, oldIndex);
81     }
82     else {
83 // parent.removeDrawComponent(child);
84 // oldParent.addDrawComponent(child, oldIndex);
85 parent.removeDrawComponent(child);
86         oldParent.addDrawComponent(child, oldIndex);
87     }
88   }
89   
90   public void redo()
91   {
92     execute();
93   }
94 }
95
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