org.apache.batik.apps.svgbrowser
Class TransformHistory

java.lang.Object
  |
  +--org.apache.batik.apps.svgbrowser.TransformHistory

public class TransformHistory

extends java.lang.Object

This class implements a transform history mechanism.

Field Summary

protected int	position The current position in the stack.
protected java.util.List	transforms The transform stack.

Constructor Summary

TransformHistory()

Method Summary

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.
java.awt.geom.AffineTransform	currentTransform() Returns the current transform.
void	forward() Goes forward of one position in the history.
void	update(java.awt.geom.AffineTransform at) Adds a transform to the history.

Methods inherited from class java.lang.Object

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

Field Detail

transforms

protected java.util.List transforms

The transform stack.

position

protected int position

The current position in the stack.

Constructor Detail

TransformHistory

public TransformHistory()

Method Detail

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 java.awt.geom.AffineTransform currentTransform()

Returns the current transform.

update

public void update(java.awt.geom.AffineTransform at)

Adds a transform to the history.