java.awt

Class MenuComponent

java.lang.Object

java.awt.MenuComponent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

MenuBar, MenuItem

public abstract class MenuComponent
extends Object
implements Serializable

This is the superclass of all menu AWT widgets.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	MenuComponent.AccessibleAWTMenuComponent This class provides a base for the accessibility support of menu components.

Constructor Summary

Constructors

Constructor and Description
MenuComponent() Default constructor for subclasses.

Method Summary

Methods

Modifier and Type	Method and Description
void	dispatchEvent(AWTEvent event) Sends this event to this component or a subcomponent for processing.
AccessibleContext	getAccessibleContext() Gets the AccessibleContext associated with this MenuComponent.
Font	getFont() Returns the font in use for this component.
String	getName() Returns the name of this component.
MenuContainer	getParent() Returns the parent of this component.
MenuComponentPeer	getPeer() Deprecated.
protected Object	getTreeLock() Returns the object used for synchronization locks on this component when performing tree and layout functions.
protected String	paramString() Returns a debugging string for this component
boolean	postEvent(Event event) Deprecated. Deprecated in favor of dispatchEvent().
protected void	processEvent(AWTEvent event) Processes the specified event.
void	removeNotify() Destroys this component's native peer
void	setFont(Font font) Sets the font for this component to the specified font.
void	setName(String name) Sets the name of this component to the specified name.
String	toString() Returns a string representation of this component.

Methods inherited from class java.lang.Object

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

Constructor Detail

MenuComponent

public MenuComponent()

Default constructor for subclasses.

Throws:

HeadlessException - ff GraphicsEnvironment.isHeadless() is true

Method Detail

getFont

public Font getFont()

Returns the font in use for this component.

Returns:

the font for this component

setFont

public void setFont(Font font)

Sets the font for this component to the specified font.

Parameters:

font - the new font for this component

getName

public String getName()

Returns the name of this component.

Returns:

the name of this component

setName

public void setName(String name)

Sets the name of this component to the specified name.

Parameters:

name - the new name of this component

getParent

public MenuContainer getParent()

Returns the parent of this component.

Returns:

the parent of this component

getPeer

public MenuComponentPeer getPeer()

Deprecated.

Returns the native windowing system peer for this component.

Returns:

the peer for this component

removeNotify

public void removeNotify()

Destroys this component's native peer

getTreeLock

protected final Object getTreeLock()

Returns the object used for synchronization locks on this component when performing tree and layout functions.

Returns:

the synchronization lock for this component

postEvent

public boolean postEvent(Event event)

Deprecated. Deprecated in favor of dispatchEvent().

AWT 1.0 event dispatcher.

Returns:

true if the event was dispatched, false otherwise

dispatchEvent

public final void dispatchEvent(AWTEvent event)

Sends this event to this component or a subcomponent for processing.

Parameters:

event - The event to dispatch

processEvent

protected void processEvent(AWTEvent event)

Processes the specified event. In this class, this method simply calls one of the more specific event handlers.

Parameters:

event - the event to process

toString

public String toString()

Returns a string representation of this component.

Overrides:

toString in class Object

Returns:

a string representation of this component

See Also:

Object.getClass(), Object.hashCode(), Class.getName(), Integer.toHexString(int)

paramString

protected String paramString()

Returns a debugging string for this component

getAccessibleContext

public AccessibleContext getAccessibleContext()

Gets the AccessibleContext associated with this MenuComponent. As an abstract class, we return null. Concrete subclasses should return their implementation of the accessibility context.

Returns:

null