org.jhotdraw.draw
Class ToolEvent

java.lang.Object
  java.util.EventObject
      org.jhotdraw.draw.ToolEvent

All Implemented Interfaces:

java.io.Serializable

public class ToolEvent
extends java.util.EventObject

An event sent to ToolListener's.

Design Patterns

Observer
State changes of tools can be observed by other objects. Specifically DrawingEditor observes area invalidations of tools and repaints its active drawing view accordingly.
Subject: Tool; Observer: ToolListener; Event: ToolEvent; Concrete Observer: DrawingEditor.

Version:

$Id: ToolEvent.java 527 2009-06-07 14:28:19Z rawcoder $

Author:

Werner Randelshofer

See Also:

Serialized Form

Field Summary

private java.awt.Rectangle	invalidatedArea
private DrawingView	view

Fields inherited from class java.util.EventObject

source

Constructor Summary

ToolEvent(Tool src, DrawingView view, java.awt.Rectangle invalidatedArea)
Creates a new instance.

Method Summary

java.awt.Rectangle	getInvalidatedArea() Gets the bounds of the invalidated area on the drawing view.
Tool	getTool() Gets the tool which is the source of the event.
DrawingView	getView() Gets the drawing view of the tool.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

invalidatedArea

private java.awt.Rectangle invalidatedArea

view

private DrawingView view

Constructor Detail

ToolEvent

public ToolEvent(Tool src,
                 DrawingView view,
                 java.awt.Rectangle invalidatedArea)

Creates a new instance.

Method Detail

getTool

public Tool getTool()

Gets the tool which is the source of the event.

getView

public DrawingView getView()

Gets the drawing view of the tool.

getInvalidatedArea

public java.awt.Rectangle getInvalidatedArea()

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