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1
15
16
17 package demo;
18
19 import swingwt.awt.*;
20 import swingwtx.swing.*;
21 import swingwt.awt.event.*;
22 import swingwtx.swing.event.*;
23
24 public class MDI extends JFrame {
25
26 public MDI() {
27
28 final JDesktopPane jdp = new JDesktopPane();
29 this.setLayout(new BorderLayout());
30 this.add(jdp, BorderLayout.CENTER);
31
32 JMenuBar bar = new JMenuBar();
33 JMenu mnuTest = new JMenu("Test");
34 JMenuItem mnuTestAdd = new JMenuItem("Add Window");
35 mnuTestAdd.addActionListener(new ActionListener() {
36 public void actionPerformed(ActionEvent e) {
37 jdp.add(new SDIForm("Test"));
38 }
39 });
40 mnuTest.add(mnuTestAdd);
41 bar.add(mnuTest);
42 setJMenuBar(bar);
43
44 show();
45 while(true){
46 try {
47 Thread.sleep(1000);
48 } catch (InterruptedException  e) {
49 e.printStackTrace();
51 }
52 }
53 }
54
55 public static void main(String [] args) {
56 new MDI();
57 }
58
59 }
60
61 class SDIForm extends JInternalFrame {
62 private static int counter = 1;
63 public SDIForm(String title) { this(); setTitle(title); }
64 public SDIForm() {
65 this.setTitle("An SDI Form");
66 this.setFrameIcon(new ImageIcon(getClass().getResource("/demo/pic.gif")));
67 this.getContentPane().setLayout(new GridBagLayout());
68 GridBagConstraints c = new GridBagConstraints(0, 0, 100, 100, 1, 1, GridBagConstraints.PAGE_END, 52, new Insets(0, 0, 10, 20), 5, 5);
69 getContentPane().add(new JLabel(getTitle() + " " + counter), c);
70 counter++;
71 setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
72 this.addInternalFrameListener(new InternalFrameListener() {
73 public void internalFrameActivated(InternalFrameEvent e) {}
74 public void internalFrameClosed(InternalFrameEvent e) {}
75 public void internalFrameClosing(InternalFrameEvent e) {
76 checkClose();
77 }
78 public void internalFrameDeactivated(InternalFrameEvent e) {}
79 public void internalFrameDeiconified(InternalFrameEvent e) {}
80 public void internalFrameIconified(InternalFrameEvent e) {}
81 public void internalFrameOpened(InternalFrameEvent e) {}
82 });
83 }
84
85 public void checkClose() {
86 if (JOptionPane.YES_OPTION == JOptionPane.showConfirmDialog(this, "Sure you wish to close?"))
87 dispose();
88 }
89
90 }
91
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Java API By Example, From Geeks To Geeks.