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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.Component;
23  import java.awt.Container;
24  
25  import javax.swing.Action;
26  
27  import org.xnap.action.*;
28  
29  /***
30   * Provides a toggle action that enables or disables components.
31   */
32  public class EnableAction extends AbstractToggleAction {
33      
34      //--- Constant(s) ---
35  
36      // --- Data Field(s) ---
37  
38      private Component[] components;
39  
40      // --- Constructor(s) ---
41  
42      public EnableAction(String name, Component[] components, boolean selected)
43      {
44  		this.components = components;
45  
46  		putValue(Action.NAME, name);
47  
48  		setSelected(selected);
49  		// make sure we are properly initialized
50  		toggled(selected);
51      }
52  
53      // --- Method(s) ---
54  
55      public void toggled(boolean selected)
56      {
57  		if (components != null) {
58  			for (int i = 0; i < components.length; i++) {
59  				setComponentEnabled(components[i], selected);
60  			}
61  		}
62      }
63  
64      public static void setComponentEnabled(Component c, boolean enabled)
65      {
66  		c.setEnabled(enabled);
67  		if (c instanceof Container) {
68  			Component[] children = ((Container)c).getComponents();
69  			for (int i = 0; i < children.length; i++) {
70  				setComponentEnabled(children[i], enabled);
71  			}
72  		}
73      }
74  }
75