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/*
Definitive Guide to Swing for Java 2, Second Edition
By John Zukowski
ISBN: 1-893115-78-X
Publisher: APress
*/
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
public class ScrollSlider {
public static void main(String args[]) {
JFrame f = new JFrame("Change Slider");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JSlider aJSlider = new JSlider (JSlider.HORIZONTAL, 0, 1000, 500);
ChangeListener aChangeListener = new BoundedChangeListener();
aJSlider.addChangeListener(aChangeListener);
Container c = f.getContentPane();
c.add (aJSlider, BorderLayout.SOUTH);
f.setSize (300, 200);
f.setVisible (true);
}
}
class BoundedChangeListener implements ChangeListener {
public void stateChanged(ChangeEvent changeEvent) {
Object source = changeEvent.getSource();
if (source instanceof BoundedRangeModel) {
BoundedRangeModel aModel = (BoundedRangeModel) source;
if (!aModel.getValueIsAdjusting()) {
System.out.println("Changed: " + aModel.getValue());
}
} else if (source instanceof JSlider) {
JSlider theJSlider = (JSlider) source;
if (!theJSlider.getValueIsAdjusting()) {
System.out.println("Slider changed: " + theJSlider.getValue());
}
} else if (source instanceof JProgressBar) {
JProgressBar theJProgressBar = (JProgressBar) source;
System.out.println("ProgressBar changed: "
+ theJProgressBar.getValue());
} else {
System.out.println("Something changed: " + source);
}
}
}
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