File	Doc	Category	Size	Date	Package
JWindow.java	API Doc	Java SE 5 API	19290	Fri Aug 26 14:57:58 BST 2005	javax.swing

JWindow

• java.lang.Object
  • java.awt.Component
    • java.awt.Container
      • java.awt.Window

window.add(child);

Fields Summary
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. This is initially false, but is set to true when the JWindow is constructed.
protected AccessibleContext	accessibleContext The accessible context property.

Constructors Summary
public JWindow() Creates a window with no specified owner. This window will not be focusable. This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. throws HeadlessException if GraphicsEnvironment.isHeadless() returns true. see java.awt.GraphicsEnvironment#isHeadless see #isFocusableWindow see JComponent#getDefaultLocale this((Frame)null);
public JWindow(GraphicsConfiguration gc) Creates a window with the specified GraphicsConfiguration of a screen device. This window will not be focusable. This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. param gc the GraphicsConfiguration that is used to construct the new window with; if gc is null, the system default GraphicsConfiguration is assumed throws HeadlessException If GraphicsEnvironment.isHeadless() returns true. throws IllegalArgumentException if gc is not from a screen device. see java.awt.GraphicsEnvironment#isHeadless see #isFocusableWindow see JComponent#getDefaultLocale since 1.3 this(null, gc); super.setFocusableWindowState(false);
public JWindow(Frame owner) Creates a window with the specified owner frame. If owner is null, the shared owner will be used and this window will not be focusable. Also, this window will not be focusable unless its owner is showing on the screen. This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. param owner the frame from which the window is displayed throws HeadlessException if GraphicsEnvironment.isHeadless() returns true. see java.awt.GraphicsEnvironment#isHeadless see #isFocusableWindow see JComponent#getDefaultLocale super(owner == null? SwingUtilities.getSharedOwnerFrame() : owner); if (owner == null) { WindowListener ownerShutdownListener = (WindowListener)SwingUtilities.getSharedOwnerFrameShutdownListener(); addWindowListener(ownerShutdownListener); } windowInit();
public JWindow(Window owner) Creates a window with the specified owner window. This window will not be focusable unless its owner is showing on the screen. If owner is null, the shared owner will be used and this window will not be focusable. This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. param owner the window from which the window is displayed throws HeadlessException if GraphicsEnvironment.isHeadless() returns true. see java.awt.GraphicsEnvironment#isHeadless see #isFocusableWindow see JComponent#getDefaultLocale super(owner == null ? (Window)SwingUtilities.getSharedOwnerFrame() : owner); if (owner == null) { WindowListener ownerShutdownListener = (WindowListener)SwingUtilities.getSharedOwnerFrameShutdownListener(); addWindowListener(ownerShutdownListener); } windowInit();
public JWindow(Window owner, GraphicsConfiguration gc) Creates a window with the specified owner window and GraphicsConfiguration of a screen device. If owner is null, the shared owner will be used and this window will not be focusable. This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. param owner the window from which the window is displayed param gc the GraphicsConfiguration that is used to construct the new window with; if gc is null, the system default GraphicsConfiguration is assumed, unless owner is also null, in which case the GraphicsConfiguration from the shared owner frame will be used. throws HeadlessException if GraphicsEnvironment.isHeadless() returns true. throws IllegalArgumentException if gc is not from a screen device. see java.awt.GraphicsEnvironment#isHeadless see #isFocusableWindow see JComponent#getDefaultLocale since 1.3 super(owner == null ? (Window)SwingUtilities.getSharedOwnerFrame() : owner, gc); if (owner == null) { WindowListener ownerShutdownListener = (WindowListener)SwingUtilities.getSharedOwnerFrameShutdownListener(); addWindowListener(ownerShutdownListener); } windowInit();

Methods Summary
protected void	addImpl(java.awt.Component comp, java.lang.Object constraints, int index) Adds the specified child Component. This method is overridden to conditionally forwad calls to the contentPane. By default, children are added to the contentPane instead of the frame, refer to {@link javax.swing.RootPaneContainer} for details. param comp the component to be enhanced param constraints the constraints to be respected param index the index exception IllegalArgumentException if index is invalid exception IllegalArgumentException if adding the container's parent to itself exception IllegalArgumentException if adding a window to a container see #setRootPaneCheckingEnabled see javax.swing.RootPaneContainer if(isRootPaneCheckingEnabled()) { getContentPane().add(comp, constraints, index); } else { super.addImpl(comp, constraints, index); }
protected javax.swing.JRootPane	createRootPane() Called by the constructor methods to create the default rootPane. JRootPane rp = new JRootPane(); // NOTE: this uses setOpaque vs LookAndFeel.installProperty as there // is NO reason for the RootPane not to be opaque. For painting to // work the contentPane must be opaque, therefor the RootPane can // also be opaque. rp.setOpaque(true); return rp;
public javax.accessibility.AccessibleContext	getAccessibleContext() Gets the AccessibleContext associated with this JWindow. For JWindows, the AccessibleContext takes the form of an AccessibleJWindow. A new AccessibleJWindow instance is created if necessary. return an AccessibleJWindow that serves as the AccessibleContext of this JWindow if (accessibleContext == null) { accessibleContext = new AccessibleJWindow(); } return accessibleContext;
public java.awt.Container	getContentPane() Returns the Container which is the contentPane for this window. return the contentPane property see #setContentPane see RootPaneContainer#getContentPane return getRootPane().getContentPane();
public java.awt.Component	getGlassPane() Returns the glassPane Component for this window. return the glassPane property see #setGlassPane see RootPaneContainer#getGlassPane return getRootPane().getGlassPane();
public javax.swing.JLayeredPane	getLayeredPane() Returns the layeredPane object for this window. return the layeredPane property see #setLayeredPane see RootPaneContainer#getLayeredPane return getRootPane().getLayeredPane();
public javax.swing.JRootPane	getRootPane() Returns the rootPane object for this window. return the rootPane property for this window see #setRootPane see RootPaneContainer#getRootPane return rootPane;
protected boolean	isRootPaneCheckingEnabled() Returns whether calls to add and setLayout are forwarded to the contentPane. return true if add and setLayout are fowarded; false otherwise see #addImpl see #setLayout see #setRootPaneCheckingEnabled see javax.swing.RootPaneContainer return rootPaneCheckingEnabled;
protected java.lang.String	paramString() Returns a string representation of this JWindow. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null. return a string representation of this JWindow String rootPaneCheckingEnabledString = (rootPaneCheckingEnabled ? "true" : "false"); return super.paramString() + ",rootPaneCheckingEnabled=" + rootPaneCheckingEnabledString;
public void	remove(java.awt.Component comp) Removes the specified component from the container. If comp is not the rootPane, this will forward the call to the contentPane. This will do nothing if comp is not a child of the JWindow or contentPane. param comp the component to be removed throws NullPointerException if comp is null see #add see javax.swing.RootPaneContainer if (comp == rootPane) { super.remove(comp); } else { getContentPane().remove(comp); }
public void	setContentPane(java.awt.Container contentPane) Sets the contentPane property for this window. This method is called by the constructor. param contentPane the new contentPane exception IllegalComponentStateException (a runtime exception) if the content pane parameter is null see #getContentPane see RootPaneContainer#setContentPane beaninfo hidden: true description: The client area of the window where child components are normally inserted. getRootPane().setContentPane(contentPane);
public void	setGlassPane(java.awt.Component glassPane) Sets the glassPane property. This method is called by the constructor. param glassPane the glassPane object for this window see #getGlassPane see RootPaneContainer#setGlassPane beaninfo hidden: true description: A transparent pane used for menu rendering. getRootPane().setGlassPane(glassPane);
public void	setLayeredPane(javax.swing.JLayeredPane layeredPane) Sets the layeredPane property. This method is called by the constructor. param layeredPane the new layeredPane object exception IllegalComponentStateException (a runtime exception) if the content pane parameter is null see #getLayeredPane see RootPaneContainer#setLayeredPane beaninfo hidden: true description: The pane which holds the various window layers. getRootPane().setLayeredPane(layeredPane);
public void	setLayout(java.awt.LayoutManager manager) Sets the LayoutManager. Overridden to conditionally forward the call to the contentPane. Refer to {@link javax.swing.RootPaneContainer} for more information. param manager the LayoutManager see #setRootPaneCheckingEnabled see javax.swing.RootPaneContainer if(isRootPaneCheckingEnabled()) { getContentPane().setLayout(manager); } else { super.setLayout(manager); }
protected void	setRootPane(javax.swing.JRootPane root) Sets the new rootPane object for this window. This method is called by the constructor. param root the new rootPane property see #getRootPane beaninfo hidden: true description: the RootPane object for this window. if(rootPane != null) { remove(rootPane); } rootPane = root; if(rootPane != null) { boolean checkingEnabled = isRootPaneCheckingEnabled(); try { setRootPaneCheckingEnabled(false); add(rootPane, BorderLayout.CENTER); } finally { setRootPaneCheckingEnabled(checkingEnabled); } }
protected void	setRootPaneCheckingEnabled(boolean enabled) Sets whether calls to add and setLayout are forwarded to the contentPane. param enabled true if add and setLayout are forwarded, false if they should operate directly on the JWindow. see #addImpl see #setLayout see #isRootPaneCheckingEnabled see javax.swing.RootPaneContainer beaninfo hidden: true description: Whether the add and setLayout methods are forwarded rootPaneCheckingEnabled = enabled;
public void	update(java.awt.Graphics g) Calls paint(g). This method was overridden to prevent an unnecessary call to clear the background. param g the Graphics context in which to paint paint(g);
protected void	windowInit() Called by the constructors to init the JWindow properly. setLocale( JComponent.getDefaultLocale() ); setRootPane(createRootPane()); setRootPaneCheckingEnabled(true); sun.awt.SunToolkit.checkAndSetPolicy(this, true);