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Java Source | 1997-07-13 | 3.0 KB | 92 lines |
- /*
- * Copyright (c) 1995-1997 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Permission to use, copy, modify, and distribute this software
- * and its documentation for NON-COMMERCIAL purposes and without
- * fee is hereby granted provided that this copyright notice
- * appears in all copies. Please refer to the file "copyright.html"
- * for further important copyright and licensing information.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
- * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
- * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
- */
- import java.awt.*;
- import java.awt.event.*;
- import com.sun.java.swing.AbstractButton;
- import com.sun.java.swing.JButton;
- import com.sun.java.swing.JPanel;
- import com.sun.java.swing.JFrame;
- import com.sun.java.swing.ImageGlyph;
-
- public class ButtonDemo extends JPanel
- implements java.awt.event.ActionListener {
-
- JButton b1, b2, b3;
-
- public ButtonDemo() {
- super(true); // true = please double buffer
- ImageGlyph leftButtonGlyph = new ImageGlyph("right.gif");
- ImageGlyph middleButtonGlyph = new ImageGlyph("middle.gif");
- ImageGlyph rightButtonGlyph = new ImageGlyph("left.gif");
-
- b1 = new JButton("Disable middle button", leftButtonGlyph);
- b1.setVerticalTextPosition(AbstractButton.CENTER);
- b1.setHorizontalTextPosition(AbstractButton.LEFT);
- b1.setKeyAccelerator('d');
- b1.setActionCommand("disable");
-
- b2 = new JButton("Middle button", middleButtonGlyph);
- b2.setVerticalTextPosition(AbstractButton.BOTTOM);
- b2.setHorizontalTextPosition(AbstractButton.CENTER);
- b2.setKeyAccelerator('m');
-
- b3 = new JButton("Enable middle button", rightButtonGlyph);
- //Use the default text position of CENTER, RIGHT.
- b3.setKeyAccelerator('e');
- b3.setActionCommand("enable");
- b3.setEnabled(false);
-
- //Listen for actions on buttons 1 and 3.
- b1.addActionListener(this);
- b3.addActionListener(this);
-
- //Add Components to the JPanel, using the default FlowLayout.
- add(b1);
- add(b2);
- add(b3);
- }
-
- public void actionPerformed(java.awt.event.ActionEvent e) {
- if (e.getActionCommand().equals("disable")) {
- b2.setEnabled(false);
- b1.setEnabled(false);
- b3.setEnabled(true);
- } else {
- b2.setEnabled(true);
- b1.setEnabled(true);
- b3.setEnabled(false);
- }
- }
-
- public static void main(String[] args) {
- /*
- * Create a window. Use JFrame since this window will include
- * lightweight components.
- */
- JFrame frame = new JFrame("ButtonDemo");
-
- WindowListener l = new WindowAdapter() {
- public void windowClosing(WindowEvent e) {System.exit(0);}
- };
- frame.addWindowListener(l);
-
- frame.add("Center", new ButtonDemo());
- frame.pack();
- frame.show();
- }
- }
-