Eclipse GEF
2.1

org.eclipse.gef.ui.actions
Class UndoAction

java.lang.Object
  |
  +--org.eclipse.jface.action.Action
        |
        +--org.eclipse.gef.ui.actions.EditorPartAction
              |
              +--org.eclipse.gef.ui.actions.StackAction
                    |
                    +--org.eclipse.gef.ui.actions.UndoAction
All Implemented Interfaces:
Disposable, IAction, UpdateAction

public class UndoAction
extends StackAction

An action to undo the last command.


Field Summary
 
Fields inherited from interface org.eclipse.jface.action.IAction
AS_CHECK_BOX, AS_DROP_DOWN_MENU, AS_PUSH_BUTTON, AS_RADIO_BUTTON, AS_UNSPECIFIED, CHECKED, DESCRIPTION, ENABLED, IMAGE, TEXT, TOOL_TIP_TEXT
 
Constructor Summary
UndoAction(IEditorPart editor)
          Creates an UndoAction and associates it with the given editor.
 
Method Summary
protected  boolean calculateEnabled()
          Returns true if the CommandStack can undo the last command.
protected  void init()
          Initializes this action's text and images.
protected  void refresh()
          Refreshes this action's text to use the last executed command's label.
 void run()
          Undoes the last command.
 
Methods inherited from class org.eclipse.gef.ui.actions.StackAction
getLabelForCommand
 
Methods inherited from class org.eclipse.gef.ui.actions.EditorPartAction
dispose, execute, getCommandStack, getEditorPart, isEnabled, setEditorPart, update
 
Methods inherited from class org.eclipse.jface.action.Action
addPropertyChangeListener, convertAccelerator, convertAccelerator, findKeyCode, findKeyString, findModifier, findModifierString, firePropertyChange, firePropertyChange, getAccelerator, getActionDefinitionId, getDescription, getDisabledImageDescriptor, getHelpListener, getHoverImageDescriptor, getId, getImageDescriptor, getMenuCreator, getStyle, getText, getToolTipText, isChecked, removeAcceleratorText, removePropertyChangeListener, runWithEvent, setAccelerator, setActionDefinitionId, setChecked, setDescription, setDisabledImageDescriptor, setEnabled, setHelpListener, setHoverImageDescriptor, setId, setImageDescriptor, setMenuCreator, setText, setToolTipText
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UndoAction

public UndoAction(IEditorPart editor)
Creates an UndoAction and associates it with the given editor.

Parameters:
editor - The editor this action is associated with.
Method Detail

calculateEnabled

protected boolean calculateEnabled()
Returns true if the CommandStack can undo the last command.

Specified by:
calculateEnabled in class EditorPartAction

init

protected void init()
Initializes this action's text and images.

Overrides:
init in class EditorPartAction

refresh

protected void refresh()
Refreshes this action's text to use the last executed command's label.

Overrides:
refresh in class EditorPartAction

run

public void run()
Undoes the last command.

Specified by:
run in interface IAction
Overrides:
run in class Action

Eclipse GEF
2.1

Copyright (c) IBM Corp. and others 2000, 2003. All Rights Reserved.