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Java Platform 1.2
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SUMMARY: INNER | FIELD | CONSTR | METHOD

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Class java.awt.Window

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Window

Direct Known Subclasses:

Dialog, Frame, JWindow

public class Window

extends Container

A Window object is a top-level window with no borders and no menubar. The default layout for a window is BorderLayout.

Windows are capable of generating the following window events: WindowOpened, WindowClosed.

Since:

JDK1.0

See Also:

WindowEvent, addWindowListener(java.awt.event.WindowListener), BorderLayout, Serialized Form

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT , CENTER_ALIGNMENT , LEFT_ALIGNMENT , RIGHT_ALIGNMENT , TOP_ALIGNMENT

Constructor Summary

Window(Frame owner)
Constructs a new invisible window.

Window(Window owner)
Constructs a new invisible window with the specified window as its owner.

Method Summary

void	addNotify() Creates the Window's peer.
void	addWindowListener(WindowListener l) Adds the specified window listener to receive window events from this window.
void	applyResourceBundle(ResourceBundle rb) Apply the settings in the given ResourceBundle to this Window.
void	applyResourceBundle(String rbName) Load the ResourceBundle with the given name using the default locale and apply its settings to this window.
void	dispose() Disposes of this window.
Component	getFocusOwner() Returns the child component of this Window which has focus if and only if this Window is active.
InputContext	getInputContext() Gets the input context for this window.
Locale	getLocale() Gets the Locale object that is associated with this window, if the locale has been set.
Window[]	getOwnedWindows() Return an array containing all the windows this window currently owns.
Window	getOwner() Returns the owner of this window.
Toolkit	getToolkit() Returns the toolkit of this frame.
String	getWarningString() Gets the warning string that is displayed with this window.
boolean	isShowing() Checks if this Window is showing on screen.
void	pack() Causes subcomponents of this window to be laid out at their preferred size.
boolean	postEvent(Event e) Deprecated. As of JDK version 1.1 replaced by dispatchEvent(AWTEvent).
protected void	processEvent(AWTEvent e) Processes events on this window.
protected void	processWindowEvent(WindowEvent e) Processes window events occurring on this window by dispatching them to any registered WindowListener objects.
void	removeWindowListener(WindowListener l) Removes the specified window listener so that it no longer receives window events from this window.
void	show() Shows this window, and brings it to the front.
void	toBack() Sends this window to the back.
void	toFront() Brings this window to the front.

Methods inherited from class java.awt.Container

add , add , add , add , add , addContainerListener , addImpl , countComponents , deliverEvent , doLayout , findComponentAt , findComponentAt , getAlignmentX , getAlignmentY , getComponent , getComponentAt , getComponentAt , getComponentCount , getComponents , getInsets , getLayout , getMaximumSize , getMinimumSize , getPreferredSize , insets , invalidate , isAncestorOf , layout , list , list , locate , minimumSize , paint , paintComponents , paramString , preferredSize , print , printComponents , processContainerEvent , remove , remove , removeAll , removeContainerListener , removeNotify , setLayout , update , validate , validateTree

Methods inherited from class java.awt.Component

action , add , addComponentListener , addFocusListener , addInputMethodListener , addKeyListener , addMouseListener , addMouseMotionListener , addPropertyChangeListener , addPropertyChangeListener , bounds , checkImage , checkImage , coalesceEvents , contains , contains , createImage , createImage , disable , disableEvents , dispatchEvent , enable , enable , enableEvents , enableInputMethods , firePropertyChange , getBackground , getBounds , getBounds , getColorModel , getComponentOrientation , getCursor , getDropTarget , getFont , getFontMetrics , getForeground , getGraphics , getHeight , getInputMethodRequests , getLocation , getLocation , getLocationOnScreen , getName , getParent , getPeer , getSize , getSize , getTreeLock , getWidth , getX , getY , gotFocus , handleEvent , hasFocus , hide , imageUpdate , inside , isDisplayable , isDoubleBuffered , isEnabled , isFocusTraversable , isLightweight , isOpaque , isValid , isVisible , keyDown , keyUp , list , list , list , location , lostFocus , mouseDown , mouseDrag , mouseEnter , mouseExit , mouseMove , mouseUp , move , nextFocus , paintAll , prepareImage , prepareImage , printAll , processComponentEvent , processFocusEvent , processInputMethodEvent , processKeyEvent , processMouseEvent , processMouseMotionEvent , remove , removeComponentListener , removeFocusListener , removeInputMethodListener , removeKeyListener , removeMouseListener , removeMouseMotionListener , removePropertyChangeListener , removePropertyChangeListener , repaint , repaint , repaint , repaint , requestFocus , reshape , resize , resize , setBackground , setBounds , setBounds , setComponentOrientation , setCursor , setDropTarget , setEnabled , setFont , setForeground , setLocale , setLocation , setLocation , setName , setSize , setSize , setVisible , show , size , toString , transferFocus

Methods inherited from class java.lang.Object

clone , equals , finalize , getClass , hashCode , notify , notifyAll , wait , wait , wait

Constructor Detail

Window

public Window(Frame owner)

Constructs a new invisible window.

The window is not initially visible. Call the show method to cause the window to become visible.

Parameters:

owner - the main application frame.

Throws:

IllegalArgumentException - if owner is null

See Also:

show(), Component.setSize(int, int)

Window

public Window(Window owner)

Constructs a new invisible window with the specified window as its owner.

Parameters:

owner - the window to act as owner

Throws:

IllegalArgumentException - if owner is null

Since:

JDK1.2

Method Detail

addNotify

public void addNotify()

Creates the Window's peer. The peer allows us to modify the appearance of the Window without changing its functionality.

Overrides:

addNotify in class Container

pack

public void pack()

Causes subcomponents of this window to be laid out at their preferred size.

show

public void show()

Shows this window, and brings it to the front.

If this window is not yet visible, show makes it visible. If this window is already visible, then this method brings it to the front.

Overrides:

show in class Component

See Also:

toFront(), Component.setVisible(boolean)

dispose

public void dispose()

Disposes of this window. This method must be called to release the resources that are used for the window. This method will automatically dispose any Windows which this window currently owns.

Invoking this method will also dispose of any InputContext associated with the Window.

toFront

public void toFront()

Brings this window to the front. Places this window at the top of the stacking order and shows it in front of any other windows.

See Also:

toBack()

toBack

public void toBack()

Sends this window to the back. Places this window at the bottom of the stacking order and makes the corresponding adjustment to other visible windows.

See Also:

toFront()

getToolkit

public Toolkit getToolkit()

Returns the toolkit of this frame.

Returns:

the toolkit of this window.

Overrides:

getToolkit in class Component

See Also:

Toolkit, Toolkit.getDefaultToolkit(), Component.getToolkit()

getWarningString

public final String getWarningString()

Gets the warning string that is displayed with this window. If this window is insecure, the warning string is displayed somewhere in the visible area of the window. A window is insecure if there is a security manager, and the security manager's checkTopLevelWindow method returns false when this window is passed to it as an argument.

If the window is secure, then getWarningString returns null. If the window is insecure, this method checks for the system property awt.appletWarning and returns the string value of that property.

Returns:

the warning string for this window.

See Also:

SecurityManager.checkTopLevelWindow(java.lang.Object)

getLocale

public Locale getLocale()

Gets the Locale object that is associated with this window, if the locale has been set. If no locale has been set, then the default locale is returned.

Returns:

the locale that is set for this window.

Overrides:

getLocale in class Component

Since:

JDK1.1

See Also:

Locale

getInputContext

public InputContext getInputContext()

Gets the input context for this window. A window always has an input context, which is shared by subcomponents unless they create and set their own.

Overrides:

getInputContext in class Component

Since:

JDK1.2

See Also:

Component.getInputContext()

getOwner

public Window getOwner()

Returns the owner of this window.

getOwnedWindows

public Window[] getOwnedWindows()

Return an array containing all the windows this window currently owns.

Since:

JDK1.2

addWindowListener

public void addWindowListener(WindowListener l)

Adds the specified window listener to receive window events from this window.

Parameters:

l - the window listener

removeWindowListener

public void removeWindowListener(WindowListener l)

Removes the specified window listener so that it no longer receives window events from this window.

Parameters:

l - the window listener

processEvent

protected void processEvent(AWTEvent e)

Processes events on this window. If the event is an WindowEvent, it invokes the processWindowEvent method, else it invokes its superclass's processEvent.

Parameters:

e - the event

Overrides:

processEvent in class Container

processWindowEvent

protected void processWindowEvent(WindowEvent e)

Processes window events occurring on this window by dispatching them to any registered WindowListener objects. NOTE: This method will not be called unless window events are enabled for this component; this happens when one of the following occurs: a) A WindowListener object is registered via addWindowListener() b) Window events are enabled via enableEvents()

Parameters:

e - the window event

See Also:

Component.enableEvents(long)

getFocusOwner

public Component getFocusOwner()

Returns the child component of this Window which has focus if and only if this Window is active.

Returns:

the component with focus, or null if no children have focus assigned to them.

postEvent

public boolean postEvent(Event e)

Deprecated. As of JDK version 1.1 replaced by dispatchEvent(AWTEvent).

Overrides:

postEvent in class Component

isShowing

public boolean isShowing()

Checks if this Window is showing on screen.

Overrides:

isShowing in class Component

See Also:

Component.setVisible(boolean)

applyResourceBundle

public void applyResourceBundle(ResourceBundle rb)

Apply the settings in the given ResourceBundle to this Window. Currently, this applies the ResourceBundle's ComponentOrientation to this Window and all components contained within it.

Since:

JDK1.2

See Also:

ComponentOrientation

applyResourceBundle

public void applyResourceBundle(String rbName)

Load the ResourceBundle with the given name using the default locale and apply its settings to this window. Currently, this applies the ResourceBundle's ComponentOrientation to this Window and all components contained within it.

Since:

JDK1.2

See Also:

ComponentOrientation