org.jhotdraw.draw.event

Class HandleEvent

java.lang.Object

java.util.EventObject

org.jhotdraw.draw.event.HandleEvent

All Implemented Interfaces:

java.io.Serializable

public class HandleEvent
extends java.util.EventObject

An EventObject sent to HandleListeners. Design Patterns

Observer
State changes of handles can be observed by other objects. Specifically DrawingView observes area invalidations and remove requests of handles.
Subject: Handle; Observer: HandleListener; Event: HandleEvent; Concrete Observer: DrawingView.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
HandleEvent(Handle src, java.awt.Rectangle invalidatedArea) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
Handle	getHandle()
java.awt.Rectangle	getInvalidatedArea() Gets the bounds of the invalidated area on the drawing view.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

HandleEvent

public HandleEvent(Handle src,
                   @Nullable
                   java.awt.Rectangle invalidatedArea)

Creates a new instance.

Method Detail

getHandle

public Handle getHandle()

getInvalidatedArea

@Nullable
public java.awt.Rectangle getInvalidatedArea()

Gets the bounds of the invalidated area on the drawing view.