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1 package org.columba.core.gui.docking;
2
3 import java.util.Enumeration  ;
4 import java.util.Hashtable ;
5
6 import javax.swing.event.EventListenerList ;
7
8 import org.columba.core.gui.docking.event.DockableEvent;
9 import org.columba.core.gui.docking.event.IDockableListener;
10 import org.flexdock.docking.Dockable;
11
12 public class DockableRegistry {
13
14 private Hashtable <String ,Dockable> hashtable = new Hashtable <String ,Dockable>();
15
16 private static DockableRegistry instance = new DockableRegistry();
17
18 protected EventListenerList listenerList = new EventListenerList ();
19
20 private DockableRegistry() {
21 super();
22 }
23
24 public static DockableRegistry getInstance() {
25 return instance;
26 }
27
28 public void register(Dockable dockable) {
29 hashtable.put(dockable.getPersistentId(), dockable);
30
31 fireDockableAdded(dockable);
32 }
33
34 public Enumeration getDockableEnumeration() {
35 return hashtable.elements();
36 }
37
38 public void addListener(IDockableListener l) {
39 listenerList.add(IDockableListener.class, l);
40 }
41
42 public void removeListener(IDockableListener l) {
43 listenerList.remove(IDockableListener.class, l);
44 }
45
46 public void fireDockableAdded(Dockable dockable) {
47 DockableEvent e = new DockableEvent(this, dockable);
48 Object [] listeners = listenerList.getListenerList();
50
51 for (int i = listeners.length - 2; i >= 0; i -= 2) {
54 if (listeners[i] == IDockableListener.class) {
55 ((IDockableListener) listeners[i + 1]).dockableAdded(e);
56 }
57 }
58 }
59
60 }
61 |
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