/**
* Sets the <code>defaultButton</code> property, which determines the current default button for
* this <code>JRootPane</code>. The default button is the button which will be activated when a
* UI-defined activation event (typically the <b>Enter</b> key) occurs in the root pane regardless
* of whether or not the button has keyboard focus (unless there is another component within the
* root pane which consumes the activation event, such as a <code>JTextPane</code>). For default
* activation to work, the button must be an enabled descendent of the root pane when activation
* occurs. To remove a default button from this root pane, set this property to <code>null</code>.
*
* @see JButton#isDefaultButton
* @param defaultButton the <code>JButton</code> which is to be the default button
* @beaninfo description: The button activated by default in this root pane
*/
public void setDefaultButton(JButton defaultButton) {
JButton oldDefault = this.defaultButton;
if (oldDefault != defaultButton) {
this.defaultButton = defaultButton;
if (oldDefault != null) {
oldDefault.repaint();
}
if (defaultButton != null) {
defaultButton.repaint();
}
}
firePropertyChange("defaultButton", oldDefault, defaultButton);
}
