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1
2 import java.io.File  ;
3 import java.util.ArrayList ;
4 import javax.swing.JComponent ;
5 import javax.swing.JFrame ;
6 import org.netbeans.spi.viewmodel.Models;
7 import org.netbeans.spi.viewmodel.TreeModel;
8 import org.netbeans.spi.viewmodel.TreeModelListener;
9
10 public class TreeModelExample1 implements TreeModel {
11
12 public Object [] getChildren (Object parent, int from, int to) {
13 if (parent == ROOT)
14 return File.listRoots ();
15 return ((File ) parent).listFiles ();
16 }
17
18 public Object getRoot () {
19 return ROOT;
20 }
21
22 public boolean isLeaf (Object node) {
23 if (node == ROOT)
24 return false;
25 return ((File ) node).isFile ();
26 }
27
28 public void addTreeModelListener (TreeModelListener l) {}
29 public void removeTreeModelListener (TreeModelListener l) {}
30
31 public static void main (String [] args) {
32 TreeModelExample1 tme = new TreeModelExample1 ();
33 JComponent ttv = Models.createView (
34 tme, null, null, null, new ArrayList () );
40 JFrame f = new JFrame ("Tree Model Example 1");
41 f.getContentPane ().add (ttv);
42 f.pack ();
43 f.show ();
44 }
45 }
46 |
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Java API By Example, From Geeks To Geeks.