antsnest.undo
Class UndoManager

java.lang.Object
  antsnest.undo.UndoManager

public class UndoManager
extends Object

Responsible for managing undo/redo actions

Author:

Chris Clohosy

Constructor Summary

UndoManager(ApplicationTasks appTasks, JComponent[] undoComponents, JComponent[] redoComponents)
Constructs the manager

Method Summary

AntProject	getLastState() Gets the last state of a project
AntProject	getNextState() Gets the next state of a project
void	projectChanged() Called when a project has been edited

Methods inherited from class java.lang.Object

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

Constructor Detail

UndoManager

public UndoManager(ApplicationTasks appTasks,
                   JComponent[] undoComponents,
                   JComponent[] redoComponents)

Constructs the manager

Parameters:

appTasks - an object that can perform application tasks

undoComponents - components that execute undo

redoComponents - components that execute redo

Method Detail

projectChanged

public void projectChanged()

Called when a project has been edited

getLastState

public AntProject getLastState()

Gets the last state of a project

Returns:

an AntProject, the previous version

getNextState

public AntProject getNextState()

Gets the next state of a project

Returns:

an AntProject, the next version