Package org.eclipse.gef.ui.actions
Class UndoAction
- All Implemented Interfaces:
Disposable
,UpdateAction
,IAction
An action to undo the last command.
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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, HANDLED, IMAGE, RESULT, TEXT, TOOL_TIP_TEXT
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Constructor Summary
ConstructorsConstructorDescriptionUndoAction
(IEditorPart editor) Creates anUndoAction
and associates it with the given editor.UndoAction
(IWorkbenchPart part) Creates anUndoAction
and associates it with the given editor. -
Method Summary
Modifier and TypeMethodDescriptionprotected boolean
Calculates and returns the enabled state of this action.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.WorkbenchPartAction
dispose, execute, getCommandStack, getWorkbenchPart, isEnabled, setLazyEnablementCalculation, setWorkbenchPart, update
Methods inherited from class org.eclipse.jface.action.Action
convertAccelerator, convertAccelerator, findKeyCode, findKeyString, findModifier, findModifierString, getAccelerator, getActionDefinitionId, getDescription, getDisabledImageDescriptor, getHelpListener, getHoverImageDescriptor, getId, getImageDescriptor, getMenuCreator, getStyle, getText, getToolTipText, isChecked, isHandled, notifyResult, removeAcceleratorText, removeMnemonics, runWithEvent, setAccelerator, setActionDefinitionId, setChecked, setDescription, setDisabledImageDescriptor, setEnabled, setHelpListener, setHoverImageDescriptor, setId, setImageDescriptor, setMenuCreator, setText, setToolTipText
Methods inherited from class org.eclipse.jface.action.AbstractAction
addPropertyChangeListener, firePropertyChange, firePropertyChange, removePropertyChangeListener
Methods inherited from class org.eclipse.core.commands.common.EventManager
addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject
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Constructor Details
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UndoAction
Creates anUndoAction
and associates it with the given editor.- Parameters:
editor
- The editor this action is associated with.
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UndoAction
Creates anUndoAction
and associates it with the given editor.- Parameters:
part
- The workbench part this action is associated with.
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Method Details
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calculateEnabled
protected boolean calculateEnabled()Description copied from class:WorkbenchPartAction
Calculates and returns the enabled state of this action.- Specified by:
calculateEnabled
in classWorkbenchPartAction
- Returns:
true
if the action is enabled- See Also:
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init
protected void init()Initializes this action's text and images.- Overrides:
init
in classWorkbenchPartAction
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refresh
protected void refresh()Refreshes this action's text to use the last executed command's label.- Overrides:
refresh
in classWorkbenchPartAction
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run
public void run()Undoes the last command.
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