Bounded Range Components - The Definitive Guide to Java Swing - page 438

Listing 12-6. ChangeListener for BoundedRangeModel, JSlider, and JProgressBar

import javax.swing.*;
import javax.swing.event.*;

public 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);
}
}
}

Customizing a JProgressBar Look and Feel
Each installable Swing look and feel provides a different JProgressBar appearance and set of
default UIResource values. Figure 12-15 shows the appearance of the JProgressBar component
for the preinstalled set of look and feel types.
Table 12-6 shows the set of available UIResource -related properties for a JProgressBar .
It has 15 different properties.

Table 12-6. JProgressBar UIResource Elements

Property String Object Type

ProgressBar.background Color

ProgressBar.border Border

ProgressBar.cellLength Integer

ProgressBar.cellSpacing Integer

ProgressBar.cycleTime Integer

ProgressBar.font Font

ProgressBar.foreground Color