org.abora.white.filter
Class RegionDelta

java.lang.Object
  |
  +--org.abora.white.xpp.basic.Heaper
        |
        +--org.abora.white.filter.RegionDelta

public class RegionDelta

extends Heaper

A RegionDelta represents a change in the state of a Region, holding the state before and after some change. They are in some sense complementary to Joints: In the same way that you can use Filters to examine Joints, you can use RegionDeltas to examine Filters. See also Filter::isSwitchedBy(RegionDelta *) and related methods.

Field Summary

protected XnRegion	myAfter
protected XnRegion	myBefore

Constructor Summary

RegionDelta(Rcvr receiver)

RegionDelta(XnRegion before, XnRegion after)

Method Summary

int	actualHashForEqual() Defined by subclasses to produce the value returned by hashForEqual.
XnRegion	after() The region after the change.
XnRegion	before() The region before the change.
boolean	isEqual(Heaper other) Return true if the two objects are equal.
boolean	isSame() if the before and after are the same
static Heaper	make(XnRegion before, XnRegion after)
void	sendSelfTo(Xmtr xmtr)

Methods inherited from class org.abora.white.xpp.basic.Heaper

destroy, destruct, equals, hashForEqual, printContentsOn, printOn, toString

Methods inherited from class java.lang.Object

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

Field Detail

myBefore

protected XnRegion myBefore

myAfter

protected XnRegion myAfter

Constructor Detail

RegionDelta

public RegionDelta(XnRegion before,
                   XnRegion after)

RegionDelta

public RegionDelta(Rcvr receiver)

Method Detail

actualHashForEqual

public int actualHashForEqual()

Description copied from class: Heaper

Defined by subclasses to produce the value returned by hashForEqual.

Overrides:

actualHashForEqual in class Heaper

isEqual

public boolean isEqual(Heaper other)

Description copied from class: Heaper

Return true if the two objects are equal.

Specified by:

isEqual in class Heaper

isSame

public boolean isSame()

if the before and after are the same

after

public XnRegion after()

The region after the change.

before

public XnRegion before()

The region before the change.

sendSelfTo

public void sendSelfTo(Xmtr xmtr)

Overrides:

sendSelfTo in class Heaper

make

public static Heaper make(XnRegion before,
                          XnRegion after)