Root Pane Containers - The Definitive Guide to Java Swing - page 250

Table 8-10. JInternalFrame Property Constants

Property Name Constant Associated Property

CONTENT_PANE_PROPERTY contentPane

FRAME_ICON_PROPERTY frameIcon

GLASS_PANE_PROPERTY glassPane

IS_CLOSED_PROPERTY closed

IS_ICON_PROPERTY icon

IS_MAXIMUM_PROPERTY maximum

IS_SELECTED_PROPERTY selected

LAYERED_PANE_PROPERTY layeredPane

MENU_BAR_PROPERTY jMenuBar

ROOT_PANE_PROPERTY rootPane

TITLE_PROPERTY title

The following class example demonstrates the use of the constants within a
PropertyChangeListener .

import java.beans.*;
import javax.swing.*;

public class InternalFramePropertyChangeHandler implements PropertyChangeListener {
public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
String propertyName = propertyChangeEvent.getPropertyName();
if (propertyName.equals(JInternalFrame.IS_ICON_PROPERTY)) {
System.out.println("Icon property changed. React.");
}
}
}

Handling JInternalFrame Events
To help you use a JInternalFrame as you would use a JFrame , there's an additional event listener
for responding to internal frame opening- and closing-related events. The interface is
called InternalFrameListener , and its definition follows. It works similarly to the AWT
WindowListener interface, but with a JInternalFrame instead of an AWT Window class.
public interface InternalFrameListener extends EventListener {
public void internalFrameActivated(InternalFrameEvent internalFrameEvent);
public void internalFrameClosed(InternalFrameEvent internalFrameEvent);
public void internalFrameClosing(InternalFrameEvent internalFrameEvent);
public void internalFrameDeactivated(InternalFrameEvent internalFrameEvent);
public void internalFrameDeiconified(InternalFrameEvent internalFrameEvent);
public void internalFrameIconified(InternalFrameEvent internalFrameEvent);
public void internalFrameOpened(InternalFrameEvent internalFrameEvent);
}