inverseeditorpanel.java

corejava核心技术第8版

package com.horstmann.corejava;

import java.awt.event.*;
import java.beans.*;
import javax.swing.*;

/**
 * The panel for setting the inverse property. It contains a button to toggle between normal and
 * inverse coloring.
 * @version 1.30 2007-10-03
 * @author Cay Horstmann
 */
public class InverseEditorPanel extends JPanel
{
   public InverseEditorPanel(PropertyEditorSupport ed)
   {
      editor = ed;
      button = new JButton();
      updateButton();
      button.addActionListener(new ActionListener()
         {
            public void actionPerformed(ActionEvent event)
            {
               editor.setValue(!(Boolean) editor.getValue());
               updateButton();
            }
         });
      add(button);
   }

   private void updateButton()
   {
      if ((Boolean) editor.getValue())
      {
         button.setIcon(inverseIcon);
         button.setText("Inverse");
      }
      else
      {
         button.setIcon(normalIcon);
         button.setText("Normal");
      }
   }

   private JButton button;
   private PropertyEditorSupport editor;
   private ImageIcon inverseIcon = new ImageIcon(getClass().getResource(
         "ChartBean_INVERSE_16x16.gif"));
   private ImageIcon normalIcon = new ImageIcon(getClass().getResource("ChartBean_MONO_16x16.gif"));
}