com.mxgraph.util

Class mxUndoableEdit

java.lang.Object

com.mxgraph.util.mxUndoableEdit

public class mxUndoableEdit
extends java.lang.Object

Implements a 2-dimensional rectangle with double precision coordinates.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	mxUndoableEdit.mxUndoableChange Defines the requirements for an undoable change.

Constructor Summary

Constructors

Constructor and Description
mxUndoableEdit(java.lang.Object source) Constructs a new undoable edit for the given source.
mxUndoableEdit(java.lang.Object source, boolean significant) Constructs a new undoable edit for the given source.

Method Summary

Modifier and Type	Method and Description
void	add(mxUndoableEdit.mxUndoableChange change) Adds the specified change to this edit.
void	die() Hook to free resources after the edit has been removed from the command history.
void	dispatch() Hook to notify any listeners of the changes after an undo or redo has been carried out.
java.util.List<mxUndoableEdit.mxUndoableChange>	getChanges()
java.lang.Object	getSource()
boolean	isEmpty() Returns true if the this edit contains no changes.
boolean	isRedone()
boolean	isSignificant()
boolean	isUndone()
void	redo()
void	undo()

Methods inherited from class java.lang.Object

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

Constructor Detail

mxUndoableEdit

public mxUndoableEdit(java.lang.Object source)

Constructs a new undoable edit for the given source.

mxUndoableEdit

public mxUndoableEdit(java.lang.Object source,
                      boolean significant)

Constructs a new undoable edit for the given source.

Method Detail

dispatch

public void dispatch()

Hook to notify any listeners of the changes after an undo or redo has been carried out. This implementation is empty.

die

public void die()

Hook to free resources after the edit has been removed from the command history. This implementation is empty.

getSource

public java.lang.Object getSource()

Returns:

the source

getChanges

public java.util.List<mxUndoableEdit.mxUndoableChange> getChanges()

Returns:

the changes

isSignificant

public boolean isSignificant()

Returns:

the significant

isUndone

public boolean isUndone()

Returns:

the undone

isRedone

public boolean isRedone()

Returns:

the redone

isEmpty

public boolean isEmpty()

Returns true if the this edit contains no changes.

add

public void add(mxUndoableEdit.mxUndoableChange change)

Adds the specified change to this edit. The change is an object that is expected to either have an undo and redo, or an execute function.

undo

public void undo()

redo

public void redo()