Package com.digitizer.ui

Class UndoManager

java.lang.Object

com.digitizer.ui.UndoManager

public class UndoManager
extends Object

Simple undo/redo manager for dataset visibility and point edits.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	UndoManager.AddPointAction
static class	UndoManager.CompositeAction
static class	UndoManager.MovePointAction
static class	UndoManager.RemovePointAction
static class	UndoManager.ToggleVisibilityAction
static interface	UndoManager.UndoableAction

Constructor Summary

Constructors

Constructor	Description
UndoManager(List<Dataset> datasets, AccessibilityPreferences prefs)

Method Summary

Modifier and Type	Method	Description
void	addChangeListener(Runnable r)
boolean	canRedo()
boolean	canUndo()
void	clear()
String	peekRedoDescription()	Returns a short description of the next redoable action, or empty string.
String	peekUndoDescription()	Returns a short description of the next undoable action, or empty string.
void	push(UndoManager.UndoableAction action)
void	redo()
void	setCanvasPanel(CanvasPanel cp)
void	undo()

Methods inherited from class java.lang.Object

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

Constructor Details

UndoManager

public UndoManager(List<Dataset> datasets,
 AccessibilityPreferences prefs)

Method Details

setCanvasPanel

public void setCanvasPanel(CanvasPanel cp)

push

public void push(UndoManager.UndoableAction action)

canUndo

public boolean canUndo()

canRedo

public boolean canRedo()

peekUndoDescription

public String peekUndoDescription()

Returns a short description of the next undoable action, or empty string.

peekRedoDescription

public String peekRedoDescription()

Returns a short description of the next redoable action, or empty string.

undo

public void undo()

redo

public void redo()

clear

public void clear()

addChangeListener

public void addChangeListener(Runnable r)