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1   /*
2    *  XNap - A P2P framework and client.
3    *
4    *  See the file AUTHORS for copyright information.
5    *
6    *  This program is free software; you can redistribute it and/or modify
7    *  it under the terms of the GNU General Public License as published by
8    *  the Free Software Foundation.
9    *
10   *  This program is distributed in the hope that it will be useful,
11   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   *  GNU General Public License for more details.
14   *
15   *  You should have received a copy of the GNU General Public License
16   *  along with this program; if not, write to the Free Software
17   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18   */
19  
20  package org.xnap.gui.action;
21  
22  import java.awt.event.ActionEvent;
23  
24  import javax.swing.AbstractAction;
25  import javax.swing.Action;
26  import javax.swing.JTree;
27  import javax.swing.tree.TreeModel;
28  import javax.swing.tree.TreePath;
29  
30  import org.xnap.XNap;
31  import org.xnap.gui.util.IconHelper;
32  
33  /***
34   * Provides an action that collapses all nodes of a {@link JTree}.
35   */
36  public class CollapseAllNodesAction extends AbstractAction 
37  {
38      
39      //--- Constant(s) ---
40      
41      //--- Data field(s) ---
42  
43  	private JTree jt;
44      
45      //--- Constructor(s) ---
46      
47      public CollapseAllNodesAction(JTree jt)
48      {
49  		this.jt = jt;
50  
51  		putValue(Action.NAME, XNap.tr("Collapse All"));
52  		putValue(Action.SHORT_DESCRIPTION, XNap.tr("Collapses all nodes."));
53  		putValue(IconHelper.XNAP_ICON, "edit_remove.png");
54      }
55  
56      //--- Method(s) ---
57          
58      public void actionPerformed(ActionEvent event) 
59      {
60  		TreeModel m = jt.getModel();
61  		for (int i = m.getChildCount(m.getRoot()) - 1; i >= 0; i--) {
62  			Object[] path 
63  				= new Object[] { m.getRoot(), m.getChild(m.getRoot(), i) };
64  			jt.collapsePath(new TreePath(path ));
65  		}
66      }
67      
68  }