accessibilitydemo10.java

java 完全探索的随书源码

// AccessibilityDemo10.java

import javax.accessibility.*;

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;

class AccessibilityDemo10 extends JFrame
{
   JLabel jl;

   AccessibilityDemo10 (String title)
   {
      super (title);

      addWindowListener (new WindowAdapter ()
                         {
                             public void windowClosing (WindowEvent e)
                             {
                                System.exit (0);
                             }
                         });

      JPanel p = new JPanel ();
      p.setPreferredSize (new Dimension (300, 50));
      jl = new JLabel ("Name:");
      p.add (jl);
      JTextField jtf = new JTextField (20);
      jtf.getAccessibleContext ().setAccessibleName ("Name-entry");
      p.add (jtf);
      jl.setLabelFor (jtf);

      getContentPane ().add (p);

      pack ();
      setVisible (true);
   }

   public static void main (String [] args)
   {
      AccessibilityDemo10 ad10;
      ad10 = new AccessibilityDemo10 ("Accessibility Demo10");

      try
      {
          Thread.sleep (5000);
      }
      catch (InterruptedException e) {}

      ad10.dumpConnectedInfo (ad10.getAccessibleContext ());
   }

   void dumpConnectedInfo (AccessibleContext ac)
   {
      String s = ac.getAccessibleName ();

      if (s != null && s.equals ("Name:"))
      {
          AccessibleContext ac2;
          ac2 = jl.getLabelFor ().getAccessibleContext ();

          System.out.println ("Label connected to: "
                              + ac2.getAccessibleName ());

          return;
      }
            
      int nChildren = ac.getAccessibleChildrenCount ();

      for (int i = 0; i < nChildren; i++)
           dumpConnectedInfo (ac.getAccessibleChild (i)
                                .getAccessibleContext ());
   }
}