// Fig. 13.5: SliderDemo.java // Using JSliders to size an oval. import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class SliderDemo extends JFrame { private JSlider diameter; private OvalPanel myPanel; public SliderDemo() { super( "Slider Demo" ); myPanel = new OvalPanel(); myPanel.setBackground( Color.yellow ); diameter = new JSlider( SwingConstants.HORIZONTAL, 0, 200, 10 ); diameter.setMajorTickSpacing( 10 ); diameter.setPaintTicks( true ); diameter.addChangeListener( new ChangeListener() { public void stateChanged( ChangeEvent e ) { myPanel.setDiameter( diameter.getValue() ); } } ); Container c = getContentPane(); c.add( diameter, BorderLayout.SOUTH ); c.add( myPanel, BorderLayout.CENTER ); setSize( 220, 270 ); show(); } public static void main( String args[] ) { SliderDemo app = new SliderDemo(); app.addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { System.exit( 0 ); } } ); } } /************************************************************************** * (C) Copyright 1999 by Deitel & Associates, Inc. and Prentice Hall. * * All Rights Reserved. * * * * DISCLAIMER: The authors and publisher of this book have used their * * best efforts in preparing the book. These efforts include the * * development, research, and testing of the theories and programs * * to determine their effectiveness. The authors and publisher make * * no warranty of any kind, expressed or implied, with regard to these * * programs or to the documentation contained in these books. The authors * * and publisher shall not be liable in any event for incidental or * * consequential damages in connection with, or arising out of, the * * furnishing, performance, or use of these programs. * *************************************************************************/