Swing Menus and Toolbars - The Definitive Guide to Java Swing - page 182

Listening to JCheckBoxMenuItem with an ItemListener
If you listen for JCheckBoxMenuitem selection with an ItemListener , you don't need to query the
event source for the selection state—the event already carries that information. Based on this
state, you respond accordingly. Re-creating the ActionListener behavior with an ItemListener
requires just a few minor changes to the previously listed source, as follows:

ItemListener iListener = new ItemListener() {
public void itemStateChanged(ItemEvent event) {
Icon girlIcon = new ImageIcon("girl-r.jpg");
Icon boyIcon = new ImageIcon("boy-r.jpg");
AbstractButton aButton = (AbstractButton)event.getSource();
int state = event.getStateChange();
String newLabel;
Icon newIcon;
if (state == ItemEvent.SELECTED) {
newLabel = "Girl";
newIcon = girlIcon;
} else {
newLabel = "Boy";
newIcon = boyIcon;
}
aButton.setText(newLabel);
aButton.setIcon(newIcon);
}
};

Customizing a JCheckBoxMenuItem Look and Feel
The appearance of the JCheckBoxMenuItem under the preinstalled set of look and feel types is
shown with the other menu components in Figure 6-3.
The available set of UIResource -related properties for a JCheckBoxMenuItem is shown in
Table 6-12. The JCheckBoxMenuItem component has 19 different properties.

Table 6-12. JCheckBoxMenuItem UIResource Elements

Property String Object Type

CheckBoxMenuItem.acceleratorFont Font

CheckBoxMenuItem.acceleratorForeground Color

CheckBoxMenuItem.acceleratorSelectionForeground Color

CheckBoxMenuItem.actionMap ActionMap

CheckBoxMenuItem.arrowIcon Icon

CheckBoxMenuItem.background Color

CheckBoxMenuItem.border Border

CheckBoxMenuItem.borderPainted Boolean