Root Pane Containers

Summary

In this chapter, you explored the JRootPane class and how implementers of the RootPaneContainer interface rely on a JRootPane for internal component management. You also learned how in Swing you work with the JRootPane of a JFrame, JDialog, JWindow, JApplet, or JInternalFrame class. The root pane can then layer components with the help of a JLayeredPane in such a way that tooltip text and pop-up menus will always appear above their associated components.

The JInternalFrame can also reside within a desktop environment, in which a JDesktopPane and DesktopManager manage how and where the internal frames act and appear. You can also respond to internal frame events by associating InternalFrameListener implementations with a JInternalFrame.

In Chapter 9, you’ll examine the specialized pop-up components within the Swing libraries: JColorChooser, JFileChooser, JOptionPane, and ProgressMonitor.