Class TransformHistory

java.lang.Object

org.apache.batik.apps.svgbrowser.TransformHistory

public class TransformHistory
extends Object

This class implements a transform history mechanism.

Version:

$Id$

Field Summary

Fields

Modifier and Type	Field	Description
protected int	position	The current position in the stack.
protected List	transforms	The transform stack.

Constructor Summary

Constructors

Constructor	Description
TransformHistory()

Method Summary

Modifier and Type	Method	Description
void	back()	Goes back of one position in the history.
boolean	canGoBack()	Whether it is possible to go back.
boolean	canGoForward()	Whether it is possible to go forward.
AffineTransform	currentTransform()	Returns the current transform.
void	forward()	Goes forward of one position in the history.
void	update(AffineTransform at)	Adds a transform to the history.

Methods inherited from class Object

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

Field Details

transforms

protected List transforms

The transform stack.

position

protected int position

The current position in the stack.

Constructor Details

TransformHistory

public TransformHistory()

Method Details

back

public void back()

Goes back of one position in the history. Assumes that canGoBack() is true.

canGoBack

public boolean canGoBack()

Whether it is possible to go back.

forward

public void forward()

Goes forward of one position in the history. Assumes that canGoForward() is true.

canGoForward

public boolean canGoForward()

Whether it is possible to go forward.

currentTransform

public AffineTransform currentTransform()

Returns the current transform.

update

public void update(AffineTransform at)

Adds a transform to the history.