javax.swing
Class JWindow

java.lang.Object   
  java.awt.Component   
      java.awt.Container   
          java.awt.Window   
              javax.swing.JWindow

All Implemented Interfaces:

ImageObserver , MenuContainer , Serializable , Accessible , RootPaneContainer

public class JWindow
extends Window   
implements Accessible   , RootPaneContainer   

A JWindow is a container that can be displayed anywhere on the user's desktop. It does not have the title bar, window-management buttons, or other trimmings associated with a JFrame, but it is still a "first-class citizen" of the user's desktop, and can exist anywhere on it.

The JWindow component contains a JRootPane as its only child. The contentPane should be the parent of any children of the JWindow. As a conveniance add and its variants, remove and setLayout have been overridden to forward to the contentPane as necessary. This means you can write:

       window.add(child);
 

And the child will be added to the contentPane. The contentPane will always be non-null. Attempting to set it to null will cause the JWindow to throw an exception. The default contentPane will have a BorderLayout manager set on it. Refer to RootPaneContainer for details on adding, removing and setting the LayoutManager of a JWindow.

Please see the JRootPane documentation for a complete description of the contentPane, glassPane, and layeredPane components.

In a multi-screen environment, you can create a JWindow on a different screen device. See Window for more information.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans^TM has been added to the java.beans package. Please see XMLEncoder .

See Also:

JRootPane , Serialized Form

Nested Class Summary

protected class

JWindow.AccessibleJWindow This class implements accessibility support for the JWindow class.

Nested classes/interfaces inherited from class java.awt.Window

Window.AccessibleAWTWindow

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent , Component.BltBufferStrategy , Component.FlipBufferStrategy

Field Summary

protected AccessibleContext	accessibleContext The accessible context property.
protected JRootPane	rootPane The JRootPane instance that manages the contentPane and optional menuBar for this frame, as well as the glassPane.
protected boolean	rootPaneCheckingEnabled If true then calls to add and setLayout will be forwarded to the contentPane.

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT , CENTER_ALIGNMENT , LEFT_ALIGNMENT , RIGHT_ALIGNMENT , TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT , ALLBITS , ERROR , FRAMEBITS , HEIGHT , PROPERTIES , SOMEBITS , WIDTH

Constructor Summary

JWindow ()
Creates a window with no specified owner.

JWindow (Frame owner)
Creates a window with the specified owner frame.

JWindow (GraphicsConfiguration gc)
Creates a window with the specified GraphicsConfiguration of a screen device.

JWindow (Window owner)
Creates a window with the specified owner window.

JWindow (Window owner, GraphicsConfiguration gc)
Creates a window with the specified owner window and GraphicsConfiguration of a screen device.

Method Summary

protected void	addImpl (Component comp, Object constraints, int index) Adds the specified child Component.
protected JRootPane	createRootPane () Called by the constructor methods to create the default rootPane.
AccessibleContext	getAccessibleContext () Gets the AccessibleContext associated with this JWindow.
Container	getContentPane () Returns the Container which is the contentPane for this window.
Component	getGlassPane () Returns the glassPane Component for this window.
JLayeredPane	getLayeredPane () Returns the layeredPane object for this window.
JRootPane	getRootPane () Returns the rootPane object for this window.
protected boolean	isRootPaneCheckingEnabled () Returns whether calls to add and setLayout are forwarded to the contentPane.
protected String	paramString () Returns a string representation of this JWindow.
void	remove (Component comp) Removes the specified component from the container.
void	setContentPane (Container contentPane) Sets the contentPane property for this window.
void	setGlassPane (Component glassPane) Sets the glassPane property.
void	setLayeredPane (JLayeredPane layeredPane) Sets the layeredPane property.
void	setLayout (LayoutManager manager) Sets the LayoutManager.
protected void	setRootPane (JRootPane root) Sets the new rootPane object for this window.
protected void	setRootPaneCheckingEnabled (boolean enabled) Sets whether calls to add and setLayout are forwarded to the contentPane.
void	update (Graphics g) Calls paint(g).
protected void	windowInit () Called by the constructors to init the JWindow properly.

Methods inherited from class java.awt.Window

addNotify , addPropertyChangeListener , addPropertyChangeListener , addWindowFocusListener , addWindowListener , addWindowStateListener , applyResourceBundle , applyResourceBundle , createBufferStrategy , createBufferStrategy , dispose , finalize , getBufferStrategy , getFocusableWindowState , getFocusCycleRootAncestor , getFocusOwner , getFocusTraversalKeys , getGraphicsConfiguration , getInputContext , getListeners , getLocale , getMostRecentFocusOwner , getOwnedWindows , getOwner , getToolkit , getWarningString , getWindowFocusListeners , getWindowListeners , getWindowStateListeners , hide , isActive , isAlwaysOnTop , isFocusableWindow , isFocusCycleRoot , isFocused , isLocationByPlatform , isShowing , pack , postEvent , processEvent , processWindowEvent , processWindowFocusEvent , processWindowStateEvent , removeWindowFocusListener , removeWindowListener , removeWindowStateListener , setAlwaysOnTop , setBounds , setCursor , setFocusableWindowState , setFocusCycleRoot , setLocationByPlatform , setLocationRelativeTo , show , toBack , toFront

Methods inherited from class java.awt.Container

add , add , add , add , add , addContainerListener , applyComponentOrientation , areFocusTraversalKeysSet , countComponents , deliverEvent , doLayout , findComponentAt , findComponentAt , getAlignmentX , getAlignmentY , getComponent , getComponentAt , getComponentAt , getComponentCount , getComponents , getComponentZOrder <