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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.peer;
21  
22  import javax.swing.Icon;
23  
24  import org.xnap.event.StateListener;
25  import org.xnap.event.StateSupport;
26  
27  /***
28   * This class provides the default implementation for a hotlist item.
29   */
30  public abstract class AbstractHotlistItem implements HotlistItem {
31  
32      //--- Data field(s) ---
33      
34      private StateSupport listeners = new StateSupport(this);
35  
36      //--- Constructor(s) ---
37  
38      public AbstractHotlistItem()
39  	{
40      }
41  
42      //--- Method(s) ---
43  
44      /***
45       * Adds a state listener.
46       */
47      public void addStateListener(StateListener listener)
48      {
49  		listeners.addStateListener(listener);
50      }
51  
52  	/***
53  	 * Returns <code>null</code>.
54  	 */
55  	public Icon getIcon()
56  	{
57  		return null;
58  	}
59  
60      public void removeStateListener(StateListener listener) 
61      {
62          listeners.removeStateListener(listener);
63      }
64  
65      /***
66       * Returns the value of {@link #getName() getName()}.
67       */
68      public String toString()
69      {
70  		return getName();
71      }
72  
73      /***
74       * Notifies all StateListeners that the state has changed.
75       */
76      protected void stateChanged()
77      {
78  		listeners.fireStateChanged();
79      }
80  
81  }