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DefaultEditorKit.DefaultKeyTypedAction (Java 2 Platform SE v1.4.1) - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

JavaTM 2 Platform
Std. Ed. v1.4.1

javax.swing.text
Class DefaultEditorKit.DefaultKeyTypedAction

java.lang.Object
  |
  +--javax.swing.AbstractAction
        |
        +--javax.swing.text.TextAction
              |
              +--javax.swing.text.DefaultEditorKit.DefaultKeyTypedAction
All Implemented Interfaces:
Action, ActionListener, Cloneable, EventListener, Serializable
Enclosing class:
DefaultEditorKit

public static class DefaultEditorKit.DefaultKeyTypedAction
extends TextAction

The action that is executed by default if a key typed event is received and there is no keymap entry. There is a variation across different VM's in what gets sent as a key typed event, and this action tries to filter out the undesired events. This filters the control characters and those with the ALT modifier. It allows Control-Alt sequences through as these form legitimate unicode characters on some PC keyboards.

If the event doesn't get filtered, it will try to insert content into the text editor. The content is fetched from the command string of the ActionEvent. The text entry is done through the replaceSelection method on the target text component. This is the action that will be fired for most text entry tasks.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.

See Also:
DefaultEditorKit.defaultKeyTypedAction, DefaultEditorKit.getActions(), Keymap.setDefaultAction(javax.swing.Action), Keymap.getDefaultAction()

Field Summary
 
Fields inherited from class javax.swing.AbstractAction
changeSupport, enabled
 
Fields inherited from interface javax.swing.Action
ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SHORT_DESCRIPTION, SMALL_ICON
 
Constructor Summary
DefaultEditorKit.DefaultKeyTypedAction()
          Creates this object with the appropriate identifier.
 
Method Summary
 void actionPerformed(ActionEvent e)
          The operation to perform when this action is triggered.
 
Methods inherited from class javax.swing.text.TextAction
augmentList, getFocusedComponent, getTextComponent
 
Methods inherited from class javax.swing.AbstractAction
addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DefaultEditorKit.DefaultKeyTypedAction

public DefaultEditorKit.DefaultKeyTypedAction()
Creates this object with the appropriate identifier.

Method Detail

actionPerformed

public void actionPerformed(ActionEvent e)
The operation to perform when this action is triggered.

Parameters:
e - the action event

JavaTM 2 Platform
Std. Ed. v1.4.1

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.