| Package | Description | 
|---|---|
| javax.swing.event | 
 Provides for events fired by Swing components. 
 | 
| javax.swing.text | 
 Provides classes and interfaces that deal with editable
and noneditable text components. 
 | 
| javax.swing.undo | 
 Allows developers to provide support for undo/redo
in applications such as text editors. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
UndoableEdit | 
UndoableEditEvent.getEdit()
Returns the edit value. 
 | 
| Constructor and Description | 
|---|
UndoableEditEvent(Object source,
                 UndoableEdit edit)
Constructs an UndoableEditEvent object. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
AbstractDocument.DefaultDocumentEvent
Stores document changes as the document is being
 modified. 
 | 
static class  | 
AbstractDocument.ElementEdit
An implementation of ElementChange that can be added to the document
 event. 
 | 
static class  | 
DefaultStyledDocument.AttributeUndoableEdit
An UndoableEdit used to remember AttributeSet changes to an
 Element. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
UndoableEdit | 
StringContent.insertString(int where,
            String str)
Inserts a string into the content. 
 | 
UndoableEdit | 
GapContent.insertString(int where,
            String str)
Inserts a string into the content. 
 | 
UndoableEdit | 
AbstractDocument.Content.insertString(int where,
            String str)
Inserts a string of characters into the sequence. 
 | 
UndoableEdit | 
StringContent.remove(int where,
      int nitems)
Removes part of the content. 
 | 
UndoableEdit | 
GapContent.remove(int where,
      int nitems)
Removes part of the content. 
 | 
UndoableEdit | 
AbstractDocument.Content.remove(int where,
      int nitems)
Removes some portion of the sequence. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
boolean | 
AbstractDocument.DefaultDocumentEvent.addEdit(UndoableEdit anEdit)
Adds a document edit. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
AbstractUndoableEdit
An abstract implementation of  
UndoableEdit,
 implementing simple responses to all boolean methods in
 that interface. | 
class  | 
CompoundEdit
A concrete subclass of AbstractUndoableEdit, used to assemble little
 UndoableEdits into great big ones. 
 | 
class  | 
StateEdit
StateEdit is a general edit for objects that change state. 
 | 
class  | 
UndoManager
UndoManager manages a list of UndoableEdits,
 providing a way to undo or redo the appropriate edits. | 
| Modifier and Type | Field and Description | 
|---|---|
protected Vector<UndoableEdit> | 
CompoundEdit.edits
The collection of  
UndoableEdits
 undone/redone en masse by this CompoundEdit. | 
| Modifier and Type | Method and Description | 
|---|---|
protected UndoableEdit | 
UndoManager.editToBeRedone()
Returns the the next significant edit to be redone if  
redo
 is invoked. | 
protected UndoableEdit | 
UndoManager.editToBeUndone()
Returns the the next significant edit to be undone if  
undo
 is invoked. | 
protected UndoableEdit | 
CompoundEdit.lastEdit()
Returns the last  
UndoableEdit in
 edits, or null
 if edits is empty. | 
| Modifier and Type | Method and Description | 
|---|---|
protected void | 
UndoableEditSupport._postEdit(UndoableEdit e)
Called only from  
postEdit and endUpdate. | 
boolean | 
UndoableEdit.addEdit(UndoableEdit anEdit)
Adds an  
UndoableEdit to this UndoableEdit. | 
boolean | 
UndoManager.addEdit(UndoableEdit anEdit)
Adds an  
UndoableEdit to this
 UndoManager, if it's possible. | 
boolean | 
AbstractUndoableEdit.addEdit(UndoableEdit anEdit)
This default implementation returns false. 
 | 
boolean | 
CompoundEdit.addEdit(UndoableEdit anEdit)
If this edit is  
inProgress,
 accepts anEdit and returns true. | 
void | 
UndoableEditSupport.postEdit(UndoableEdit e)
DEADLOCK WARNING: Calling this method may call
  
undoableEditHappened in all listeners. | 
protected void | 
UndoManager.redoTo(UndoableEdit edit)
Redoes all changes from the index of the next edit to
  
edit, updating the index of the next edit appropriately. | 
boolean | 
UndoableEdit.replaceEdit(UndoableEdit anEdit)
Returns true if this  
UndoableEdit should replace
 anEdit. | 
boolean | 
AbstractUndoableEdit.replaceEdit(UndoableEdit anEdit)
This default implementation returns false. 
 | 
protected void | 
UndoManager.undoTo(UndoableEdit edit)
Undoes all changes from the index of the next edit to
  
edit, updating the index of the next edit appropriately. | 
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