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/* Listing3712.java */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Listing3712
extends JFrame
implements AdjustmentListener
{
private JPanel coloredPanel;
private JScrollBar sbEast;
private JScrollBar sbSouth;
private int blue = 0;
private int red = 0;
public Listing3712()
{
super("JScrollBar");
addWindowListener(new WindowClosingAdapter(true));
Container cp = getContentPane();
//Vertikaler Schieberegler
sbEast = new JScrollBar(JScrollBar.VERTICAL, 0, 10, 0, 255);
sbEast.addAdjustmentListener(this);
cp.add(sbEast, BorderLayout.EAST);
//Horizontaler Schieberegler
sbSouth = new JScrollBar(JScrollBar.HORIZONTAL, 0, 10, 0, 255);
sbSouth.addAdjustmentListener(this);
cp.add(sbSouth, BorderLayout.SOUTH);
//Farbiges Panel
coloredPanel = new JPanel();
coloredPanel.setBackground(new Color(red, 0, blue));
cp.add(coloredPanel, BorderLayout.CENTER);
}
public void adjustmentValueChanged(AdjustmentEvent event)
{
JScrollBar sb = (JScrollBar)event.getSource();
if (sb == sbEast) {
blue = event.getValue();
} else {
red = event.getValue();
}
coloredPanel.setBackground(new Color(red, 0, blue));
if (!sb.getValueIsAdjusting()) {
System.out.println("(" + red + ",0," + blue + ")");
}
}
public static void main(String[] args)
{
Listing3712 frame = new Listing3712();
frame.setLocation(100, 100);
frame.setSize(200, 200);
frame.setVisible(true);
}
}
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