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1
26
27 package swingwtx.swing;
28
29 import java.util.*;
30 import swingwtx.swing.event.*;
31
32 public abstract class AbstractListModel implements ListModel {
33
34 protected Vector listenerList = new Vector();
35
36 public void addListDataListener(ListDataListener l) {
37 listenerList.add(l);
38 }
39
40 public void removeListDataListener(ListDataListener l) {
41 listenerList.remove(l);
42 }
43
44 public Object  [] getListDataListeners() {
45 return listenerList.toArray();
46 }
47
48 protected void fireContentsChanged(Object source, int index0, int index1) {
49 ListDataEvent e = new ListDataEvent(source, ListDataEvent.CONTENTS_CHANGED, index0, index1);
50 for (int i = 0; i < listenerList.size(); i++) {
51 ((ListDataListener) listenerList.get(i)).contentsChanged(e);
52 }
53 }
54
55 protected void fireIntervalAdded(Object source, int index0, int index1) {
56 ListDataEvent e = new ListDataEvent(source, ListDataEvent.INTERVAL_ADDED, index0, index1);
57 for (int i = 0; i < listenerList.size(); i++) {
58 ((ListDataListener) listenerList.get(i)).intervalAdded(e);
59 }
60 }
61
62 protected void fireIntervalRemoved(Object source, int index0, int index1) {
63 ListDataEvent e = new ListDataEvent(source, ListDataEvent.INTERVAL_REMOVED, index0, index1);
64 for (int i = 0; i < listenerList.size(); i++) {
65 ((ListDataListener) listenerList.get(i)).intervalRemoved(e);
66 }
67 }
68
69 public Object [] getListeners(Class listenerType) {
70 return listenerList.toArray();
71 }
72 }
73
74 |
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