: Class ZAncestorEvent

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edu.umd.cs.jazz.event
Class ZAncestorEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--java.awt.AWTEvent
              |
              +--edu.umd.cs.jazz.event.ZAncestorEvent

public class ZAncestorEvent
extends java.awt.AWTEvent

An event reported to a child node that originated from an ancestor in the node hierarchy. Based on Swing's AncestorEvent.

See Also:: Serialized Form

Field Summary
`static int`	`ANCESTOR_ADDED` An ancestor-node was added to the hierarchy of visible objects (made visible), and is currently being displayed.
`static int`	`ANCESTOR_MOVED` An ancestor-node changed its position on the screen.
`static int`	`ANCESTOR_REMOVED` An ancestor-node was removed from the hierarchy of visible objects (hidden) and is no longer being displayed.

Fields inherited from class java.awt.AWTEvent

ACTION_EVENT_MASK,  
ADJUSTMENT_EVENT_MASK,  
COMPONENT_EVENT_MASK,  
consumed,  
CONTAINER_EVENT_MASK,  
FOCUS_EVENT_MASK,  
id,  
INPUT_METHOD_EVENT_MASK,  
ITEM_EVENT_MASK,  
KEY_EVENT_MASK,  
MOUSE_EVENT_MASK,  
MOUSE_MOTION_EVENT_MASK,  
RESERVED_ID_MAX,  
TEXT_EVENT_MASK,  
WINDOW_EVENT_MASK

Fields inherited from class java.util.EventObject

source

Constructor Summary
`ZAncestorEvent(ZNode source, int id, ZNode ancestor, ZNode ancestorParent)` Constructs an ZAncestorEvent object to identify a change in an ancestor-component's display-status.

Method Summary
`ZNode`	`getAncestor()` Returns the ancestor that the event actually occured on.
`ZNode`	`getAncestorParent()` Returns the parent of the ancestor the event actually occured on.
`ZNode`	`getComponent()` Returns the ZNode that the listener was added to.

Methods inherited from class java.awt.AWTEvent

consume, 
finalize, 
getID, 
isConsumed, 
paramString, 
toString

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class java.lang.Object

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

Field Detail

ANCESTOR_ADDED

public static final int ANCESTOR_ADDED

An ancestor-node was added to the hierarchy of visible objects (made visible), and is currently being displayed.

ANCESTOR_REMOVED

public static final int ANCESTOR_REMOVED

An ancestor-node was removed from the hierarchy of visible objects (hidden) and is no longer being displayed.

ANCESTOR_MOVED

public static final int ANCESTOR_MOVED

An ancestor-node changed its position on the screen.

Constructor Detail

ZAncestorEvent

public ZAncestorEvent(ZNode source,
                      int id,
                      ZNode ancestor,
                      ZNode ancestorParent)

Constructs an ZAncestorEvent object to identify a change in an ancestor-component's display-status.

Parameters:: source - the ZNode that originated the event (typically this); id - an int specifying ANCESTOR_ADDED, ANCESTOR_REMOVED or ANCESTOR_MOVED; ancestor - a ZNode object specifying the ancestor-node whose display-status changed; ancestorParent - a ZNode object specifying the ancestor's parent

Method Detail

getAncestor

public ZNode getAncestor()

Returns the ancestor that the event actually occured on.

getAncestorParent

public ZNode getAncestorParent()

Returns the parent of the ancestor the event actually occured on. This is most interesting in an ANCESTOR_REMOVED event, as the ancestor may no longer be in the component hierarchy.

getComponent

public ZNode getComponent()

Returns the ZNode that the listener was added to.