CH.ifa.draw.standard

Class NullHandle

java.lang.Object

CH.ifa.draw.standard.AbstractHandle

CH.ifa.draw.standard.LocatorHandle

CH.ifa.draw.standard.NullHandle

All Implemented Interfaces:

Handle

public class NullHandle
extends LocatorHandle

A handle that doesn't change the owned figure. Its only purpose is to show feedback that a figure is selected. Design Patterns

NullObject
NullObject enables to treat handles that don't do anything in the same way as other handles.

Field Summary

Fields inherited from class CH.ifa.draw.standard.AbstractHandle

HANDLESIZE

Constructor Summary

Constructors

Constructor and Description
NullHandle(Figure owner, Locator locator)

Method Summary

Modifier and Type	Method and Description
void	draw(java.awt.Graphics g) Draws the NullHandle.

Methods inherited from class CH.ifa.draw.standard.LocatorHandle

locate

Methods inherited from class CH.ifa.draw.standard.AbstractHandle

containsPoint, displayBox, invokeEnd, invokeEnd, invokeStart, invokeStart, invokeStep, invokeStep, owner

Methods inherited from class java.lang.Object

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

Constructor Detail

NullHandle

public NullHandle(Figure owner,
                  Locator locator)

Method Detail

draw

public void draw(java.awt.Graphics g)

Draws the NullHandle. NullHandles are drawn as a red framed rectangle.

Specified by:

draw in interface Handle

Overrides:

draw in class AbstractHandle