RedoAction (NetBeans APIs) - NetBeans API Javadoc 4.1.0

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org.openide.actions
Class RedoAction

java.lang.Object
  org.openide.util.SharedClassObject
      org.openide.util.actions.SystemAction
          org.openide.util.actions.CallableSystemAction
              org.openide.actions.RedoAction

All Implemented Interfaces:: Action, ActionListener, EventListener, Externalizable, HelpCtx.Provider, Presenter, Presenter.Menu, Presenter.Popup, Presenter.Toolbar, Serializable

public class RedoAction
extends CallableSystemAction

Redo an edit.

See Also:: UndoAction, Serialized Form

Nested Class Summary

Nested classes inherited from class org.openide.util.actions.Presenter

Presenter.Menu, Presenter.Popup, Presenter.Toolbar

Field Summary

Fields inherited from class org.openide.util.actions.SystemAction

PROP_ENABLED, PROP_ICON

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

RedoAction()


Method Summary

protected boolean asynchronous()
          If true, this action should be performed asynchronously in a private thread.

HelpCtx getHelpCtx()
          Get a help context for the action.

String getName()
          Get a human presentable name of the action.

protected String iconResource()
          Specify the proper resource name for the action's icon.

boolean isEnabled()
          Test whether the action is currently enabled.

void performAction()
          Actually perform the action.

Methods inherited from class org.openide.util.actions.CallableSystemAction

actionPerformed, getMenuPresenter, getPopupPresenter, getToolbarPresenter

Methods inherited from class org.openide.util.actions.SystemAction

clearSharedData, createPopupMenu, createToolbarPresenter, get, getIcon, getIcon, getValue, initialize, linkActions, putValue, setEnabled, setIcon

Methods inherited from class org.openide.util.SharedClassObject

addNotify, addPropertyChangeListener, equals, finalize, findObject, findObject, firePropertyChange, getLock, getProperty, hashCode, putProperty, putProperty, readExternal, removeNotify, removePropertyChangeListener, reset, writeExternal, writeReplace

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.swing.Action

addPropertyChangeListener, removePropertyChangeListener

Constructor Detail

RedoAction

public RedoAction()

Method Detail

isEnabled

public boolean isEnabled()

Description copied from class: SystemAction

Test whether the action is currently enabled.

Specified by:: isEnabled in interface Action
Overrides:: isEnabled in class SystemAction

Returns:: true if so

getName

public String getName()

Description copied from class: SystemAction

Get a human presentable name of the action. This may be presented as an item in a menu.

Using the normal menu presenters, an included ampersand before a letter will be treated as the name of a mnemonic.

Specified by:: getName in class SystemAction

Returns:: the name of the action

getHelpCtx

public HelpCtx getHelpCtx()

Description copied from class: SystemAction

Get a help context for the action.

Specified by:: getHelpCtx in interface HelpCtx.Provider
Specified by:: getHelpCtx in class SystemAction

Returns:: the help context for this action

iconResource

protected String iconResource()

Description copied from class: SystemAction

Specify the proper resource name for the action's icon. May be overridden by subclasses; the default is to have no icon. Typically this should be a 16x16 color GIF. Do not use relative paths nor an initial slash. If e.g. myIcon.gif is accompanied with myIcon_pressed.gif, myIcon_disabled.gif and/or myIcon_rollover.gif these images are used to call methods on JButton.setPressedIcon(), JButton.setDisabledIcon() and/or JButton.setRolloverIcon() with appropriate images. Please check Actions.connect(AbstractButton, Action) for additional info how this is achieved (using special "iconBase" key for getValue). As of APIs version 3.24, this path will be used for a localized search automatically.

Overrides:: iconResource in class SystemAction

Returns:: the resource name for the icon, e.g. com/mycom/mymodule/myIcon.gif; or null to have no icon (make a text label)

performAction

public void performAction()

Description copied from class: CallableSystemAction

Actually perform the action. This is the method which should be called programmatically. Presenters in Actions use this.

See SystemAction.actionPerformed(java.awt.event.ActionEvent) for a note on threading usage: in particular, do not access GUI components without explicitly asking for the AWT event thread!

Specified by:: performAction in class CallableSystemAction

asynchronous

protected boolean asynchronous()

Description copied from class: CallableSystemAction

If true, this action should be performed asynchronously in a private thread. If false, it will be performed synchronously as called in the event thread.

The default value is true for compatibility reasons; subclasses are strongly encouraged to override it to be false, and to either do their work promptly in the event thread and return, or to somehow do work asynchronously (for example using RequestProcessor.getDefault()).

You may currently set the global default to false by setting the system property org.openide.util.actions.CallableSystemAction.synchronousByDefault to true.

When true, the current implementation also provides for a wait cursor during the execution of the action. Subclasses which override to return false should consider directly providing a wait or busy cursor if the nature of the action merits it.

Overrides:: asynchronous in class CallableSystemAction

Returns:: true if this action should automatically be performed asynchronously

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Method Summary
`protected boolean`	`asynchronous()` If true, this action should be performed asynchronously in a private thread.
`HelpCtx`	`getHelpCtx()` Get a help context for the action.
`String`	`getName()` Get a human presentable name of the action.
`protected String`	`iconResource()` Specify the proper resource name for the action's icon.
`boolean`	`isEnabled()` Test whether the action is currently enabled.
`void`	`performAction()` Actually perform the action.

RedoAction (NetBeans APIs) - NetBeans API Javadoc 4.1.0

org.openide.actions Class RedoAction

RedoAction

isEnabled

getName

getHelpCtx

iconResource

performAction

asynchronous

org.openide.actions
Class RedoAction