Bounded Range Components - The Definitive Guide to Java Swing - page 440

how a JScrollBar can track the scrolling area of the JTextField . Figure 12-16 shows the example
in action, and Listing 12-7 shows the source.
Figure 12-16. Tracking a JTextField width with a JScrollBar
Listing 12-7. JTextField with a JScrollBar for Scrolling
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class TextSlider extends JPanel {
private JTextField textField;
private JScrollBar scrollBar;
public TextSlider() {
setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
textField = new JTextField();
scrollBar = new JScrollBar(JScrollBar.HORIZONTAL);
BoundedRangeModel brm = textField.getHorizontalVisibility();
scrollBar.setModel(brm);
add(textField);
add(scrollBar);
}
public JTextField getTextField() {
return textField;
}
public String getText() {
return textField.getText();
}
public void addActionListener(ActionListener l) {
textField.addActionListener(l);
}
public void removeActionListener(ActionListener l) {
textField.removeActionListener(l);
}
public JScrollBar getScrollBar() {
return scrollBar;
}