All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class java.awt.MenuComponent

Object
   |
   +----java.awt.MenuComponent

public abstract class MenuComponent

extends Object

implements Serializable

Menu components receive and process AWT events, just as components do, through the method processEvent.

Version:

1.29, 08/21/98

Author:

Arthur van Hoff

Since:

JDK1.0

java.awt.MenuComponent()

dispatchEvent(AWTEvent)

getFont()

Gets the font used for this menu component.

getName()

Gets the name of the menu component.

getParent()

Returns the parent container for this menu component.

getPeer()

getTreeLock()

Gets this component's locking object (the object that owns the thread sychronization monitor) for AWT component-tree and layout operations.

paramString()

Returns the parameter string representing the state of this menu component.

postEvent(Event)

Posts the specified event to the menu.

processEvent(AWTEvent)

Processes events occurring on this menu component.

removeNotify()

Removes the menu component's peer.

setFont(Font)

Sets the font to be used for this menu component to the specified font.

setName(String)

Sets the name of the component to the specified string.

toString()

Returns a representation of this menu component as a string.

public MenuComponent()

public final void dispatchEvent(AWTEvent e)

public java.awt.Font getFont()

Gets the font used for this menu component.

Returns:

the font used in this menu component, if there is one; null otherwise.

Since:

JDK1.0

See Also:

setFont

public java.lang.String getName()

Gets the name of the menu component.

Returns:

the name of the menu component.

Since:

JDK1.1

See Also:

setName(java.lang.String)

public java.awt.MenuContainer getParent()

Returns the parent container for this menu component.

Returns:

the menu component containing this menu component, or null if this menu component is the outermost component, the menu bar itself.

Since:

JDK1.0

public java.awt.peer.MenuComponentPeer getPeer()

Note: getPeer() is deprecated. As of JDK version 1.1, programs should not directly manipulate peers.

protected final java.lang.Object getTreeLock()

Gets this component's locking object (the object that owns the thread sychronization monitor) for AWT component-tree and layout operations.

Returns:

This component's locking object.

protected java.lang.String paramString()

Returns the parameter string representing the state of this menu component. This string is useful for debugging.

Returns:

the parameter string of this menu component.

Since:

JDK1.0

public boolean postEvent(Event evt)

Note: postEvent() is deprecated. As of JDK version 1.1, replaced by dispatchEvent(AWTEvent).

Posts the specified event to the menu. This method is part of the Java 1.0 event system and it is maintained only for backwards compatibility. Its use is discouraged, and it may not be supported in the future.

Parameters:

evt - the event which is to take place

Since:

JDK1.0

protected void processEvent(AWTEvent e)

Processes events occurring on this menu component.

Parameters:

e - the event

Since:

JDK1.1

public void removeNotify()

Removes the menu component's peer. The peer allows us to modify the appearance of the menu component without changing the functionality of the menu component.

public void setFont(Font f)

Sets the font to be used for this menu component to the specified font. This font is also used by all subcomponents of this menu component, unless those subcomponents specify a different font.

Parameters:

f - the font to be set.

Since:

JDK1.0

See Also:

getFont

public void setName(String name)

Sets the name of the component to the specified string.

Parameters:

name - the name of the menu component.

Since:

JDK1.1

See Also:

getName

public java.lang.String toString()

Returns a representation of this menu component as a string.

Returns:

a string representation of this menu component.

Overrides:

toString in class Object

Since:

JDK1.0

All Packages  Class Hierarchy  This Package  Previous  Next  Index