simtools.diagram.undo
Class UndoHandler

java.lang.Object
  simtools.diagram.undo.UndoHandler

All Implemented Interfaces:

java.util.EventListener, javax.swing.event.UndoableEditListener

public class UndoHandler
extends java.lang.Object
implements javax.swing.event.UndoableEditListener

Instances of this class listen to UndoableEditEvents and inform an instance of UndoManager, in order for the edit to be undone/redone.

Author:

Jean-Baptiste Lièvremont

Nested Class Summary

class	UndoHandler.RedoAction Instances of this class can be used to access redo features
class	UndoHandler.UndoAction Instances of this class can be used to access undo features

Field Summary

protected UndoHandler.RedoAction	_redoAction
protected javax.swing.undo.UndoManager	_undo
protected UndoHandler.UndoAction	_undoAction

Constructor Summary

UndoHandler(javax.swing.undo.UndoManager undo)

Method Summary

UndoHandler.RedoAction	getRedoAction() Get the RedoAction associated to this handler, and therefore to a given DiagramComponent.
UndoHandler.UndoAction	getUndoAction() Get the UndoAction associated to this handler, and therefore to a given DiagramComponent.
void	undoableEditHappened(javax.swing.event.UndoableEditEvent e) Inform an UndoManager that an UndoableEditEvent has happened and update the stats of related actions.

Methods inherited from class java.lang.Object

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

Field Detail

_undo

protected javax.swing.undo.UndoManager _undo

_undoAction

protected UndoHandler.UndoAction _undoAction

_redoAction

protected UndoHandler.RedoAction _redoAction

Constructor Detail

UndoHandler

public UndoHandler(javax.swing.undo.UndoManager undo)

Method Detail

undoableEditHappened

public void undoableEditHappened(javax.swing.event.UndoableEditEvent e)

Inform an UndoManager that an UndoableEditEvent has happened and update the stats of related actions.

Specified by:

undoableEditHappened in interface javax.swing.event.UndoableEditListener

See Also:

UndoableEditListener.undoableEditHappened(javax.swing.event.UndoableEditEvent)

getUndoAction

public UndoHandler.UndoAction getUndoAction()

Get the UndoAction associated to this handler, and therefore to a given DiagramComponent.

getRedoAction

public UndoHandler.RedoAction getRedoAction()

Get the RedoAction associated to this handler, and therefore to a given DiagramComponent.