Easy to Learn Java: Programming Articles, Examples and Tips

Start with Java in a few days with Java Lessons or Lectures

Home

Code Examples

Java Tools

More Java Tools!

Java Forum

All Java Tips

Books

Submit News
Search the site here...
Search...
 

Swing Chapter 16. (Advanced topics) Desktops and Internal Frames. Easy for reading, Click here!

Custom Search
Swing Chapter 16. (Advanced topics) Desktops and Internal Frames. Easy for reading, Click here!

[ Return to Swing (Book) ]

Page: 2/5 



Previous Page Previous Page (1/5) - Next Page (3/5) Next Page
Subpages: 1. JDesktopPane and JInternalFrame 
2.
Internalizable/Externalizable frames 
3.
Cascading and outline dragging mode 
4. An X windows style desktop environment 
5. A networked multi-user desktop using sockets 

16.2  Internalizable/externalizable frames

Most often in Java applets and applications we do not work in full-screen mode. Because of this JDesktopPanes can often become very cluttered. We may, at some point, want to have the option of bringing an internal frame outside of the desktop. We call this externalizing a frame, for lack of a given name. (Please do not confuse the use of "externalizable" here with Java's Externalizable interface, an extension of the Serializable interface.) Superfically, externalizing is the process of transforming a JInternalFrame into a JFrame.

Now consider an application in which a maximized JFrame is used. When this maximized frame gains the focus it hides all other existing frames and dialogs behind it. In situations where we need to switch back and forth between frames or dialogs this can be quite annoying. In order to accomodate for this problem we can think of bringing dialogs and frames inside the maximized frame to a JDesktopPane. We call this internalizing a frame. Superficially, internalizing is the process of transforming a JFrame into a JInternalFrame.

Figure 16.2 Internalizable/externalizable frames

<<file figure16-2.gif>>

Although there is no real transformation that occurs, this is what appears to happen from the user's perspective. Internalizing and externalizing is actually achieved by moving the contentPane from a JFrame to a JInternalFrame and vice versa, respectively. The process is simple to implement:

For externalization do the following:

1. Hide a JInternalFrame with setVisible(false).

2. Replace the contentPane of a hidden JFrame with that of the hidden JInternalFrame.

3. Reveal the JFrame using setVisible(true).

Internalization is just the opposite.

Reference: We constructed a small demo application showing how to do this in a Swing Connection 'Tips and Tricks' article.  See http://java.sun.com/products/jfc/tsc/friends/tips/tips.html



[ Return to Swing (Book) ]


Top 10 read Java Articles
 Get free "1000 Java Tips eBook"

 Java Calendar and Date: good to know facts and code examples

 Array vs ArrayList vs LinkedList vs Vector: an excellent overview and examples

 How can I convert any Java Object into byte array? And byte array to file object

 The Java Lesson 1: What is Java?

 How do I compare two dates and times, date between dates, time between times and

 Maven vs Ant or Ant vs Maven?

 How to open, read, write, close file(s) in Java? Examples on move, rename and de

 Java Array

 Java: JLabel font and color


[ More in News Section ]
Java Lessons

The Java Lesson 1:
What is Java?
The Java Lesson 2:
Anatomy of a simple Java program
The Java Lesson 3:
Identifiers and primitive data types
The Java Lesson 4:
Variables, constants, and literals
The Java Lesson 5:
Arithmetic operations, conversions, and casts
The Java Lesson 6:
Boolean expressions and operations
The Java Lesson 7:
Bitwise operations
The Java Lesson 8:
Flow control with if and else
The Java Lesson 9:
switch statements
The Java Lesson 10:
for, while, and do-while statements
The Java Lesson 11:
Using break and continue
The Java Lesson 12:
Class methods and how they are called
The Java Lesson 13:
Using the Math class
The Java Lesson 14:
Creating and calling custom class methods
The Java Lesson 15:
Overloading class methods
The Java Lesson 16:
An introduction to objects and object references
The Java Lesson 17:
The String class
The Java Lesson 18:
The StringBuffer class
The Java Lesson 19:
Initializing and processing arrays of primitives
The Java Lesson 20:
Initializing and processing arrays of objects
The Java Lesson 23:
Inheritance and overriding inherited methods
The Java Lesson 24:
abstract classes and polymorphism
The Java Lesson 25:
Interfaces, instanceof, and object conversion and casting
The Java Lesson 26:
Introduction to graphical programming and the java.awt packa
The Java Lesson 27:
The Component class
The Java Lesson 28:
Containers and simple layout managers
The Java Lesson 29:
The Color and Font classes
The Java Lesson 30:
Drawing geometric shapes
The Java Lesson 31:
Choice, List, and Checkbox controls
The Java Lesson 32:
Using the Scrollbar graphical control
The Java Lesson 33:
Menus and submenus
The Java Lesson 34:
An introduction to applets and the Applet class
The Java Lesson 35:
Essential HTML to launch an applet and pass it parameters
The Java Lesson 36:
Mouse event processing
Java Lesson 37:
Menus and submenus
Java Lesson 38:
The WindowListener interface and the WindowAdapter class
Java Lesson 39:
An introduction to GridBagLayout
Java Lesson 40:
An introduction to the Java Collections API
Java Lesson 41:
Exception handling with try, catch, and finally blocks
Java Lesson 42:
Claiming and throwing exceptions
Java Lesson 43:
Multithreading, the Thread class, and the Runnable interface
Java Lesson 44:
An introduction to I/O and the File and FileDialog classes
Java Lesson 45:
Low-level and high-level stream classes
Java Lesson 46:
Using the RandomAccessFile class
Java Lessons by
Joh Huhtala: Update

Latest articles
 Java Profiler JProbe to Resolve Performance Problems Faster

 SSL with GlassFish v2, page 5

 SSL with GlassFish v2, page 4

 SSL with GlassFish v2, page 3

 SSL with GlassFish v2, page 2

 The Java Lesson 2: Anatomy of a simple Java program, page 2

 New site about Java for robots and robotics: both software and hardware.

 Exceptions -III: What's an exception and why do I care?

 Exceptions -II: What's an exception and why do I care?

 Exceptions: What's an exception and why do I care?

 Double your Java code quality in 10 minutes, here is receipt

 Murach's Java Servlets and JSP

 How to get ascii code from a char in Java?

 Can we just try without catch? Yes!

 Make Tomcat page load faster

 Make your Tomcat More secure - limit network address for certain IP addresses

 New Java book online starts now here...

 Implementing RESTful Web Services in Java

 Firefox trimming from 1 GB to 40 Mb with many tabs opened

 SSL with GlassFish v2

 My request to replublish Tech Tips

 Search JavaFAQ.nu site here

 New Advanced Installer for Java 6.0 brings XML updates and imports 3rd party MSI

 EJB programming restrictions

 Maven vs Ant or Ant vs Maven?

 Why Java does not use default value which it should?

 How to unsign signed bytes in Java - your guide is here

 The Java Lesson 3: Identifiers and primitive data types. Page 2

 The Java Lesson 7: Bitwise operations with good examples, click here! Page 4

 The Java Lesson 7: Bitwise operations with good examples, click here! Page 3


[ More in News Section ]


Home Code Examples Java Forum All Java Tips Books Submit News, Code... Search... Offshore Software Tech Doodling

RSS feed Java FAQ RSS feed Java FAQ News     

    RSS feed Java Forums RSS feed Java Forums

All logos and trademarks in this site are property of their respective owner. The comments are property of their posters, all the rest 1999-2006 by Java FAQs Daily Tips.

Interactive software released under GNU GPL, Code Credits, Privacy Policy