Module java.desktop

Package javax.swing.plaf.basic

Class BasicTreeUI.KeyHandler

java.lang.Object

java.awt.event.KeyAdapter

javax.swing.plaf.basic.BasicTreeUI.KeyHandler

All Implemented Interfaces:

KeyListener, EventListener

Enclosing class:

BasicTreeUI

public class BasicTreeUI.KeyHandler
extends KeyAdapter

This is used to get multiple key down events to appropriately generate events.

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	isKeyDown	Set to true while keyPressed is active.
protected Action	repeatKeyAction	Key code that is being generated for.

Constructor Summary

Constructors

Constructor	Description
KeyHandler()

Method Summary

Modifier and Type	Method	Description
void	keyPressed(KeyEvent e)	Invoked when a key has been pressed.
void	keyReleased(KeyEvent e)	Invoked when a key has been released.
void	keyTyped(KeyEvent e)	Invoked when a key has been typed.

Methods inherited from class java.lang.Object

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

Field Detail

repeatKeyAction

protected Action repeatKeyAction

Key code that is being generated for.

isKeyDown

protected boolean isKeyDown

Set to true while keyPressed is active.

Constructor Detail

KeyHandler

public KeyHandler()

Method Detail

keyTyped

public void keyTyped(KeyEvent e)

Invoked when a key has been typed. Moves the keyboard focus to the first element whose first letter matches the alphanumeric key pressed by the user. Subsequent same key presses move the keyboard focus to the next object that starts with the same letter.

Specified by:

keyTyped in interface KeyListener

Overrides:

keyTyped in class KeyAdapter

Parameters:

e - the event to be processed

keyPressed

public void keyPressed(KeyEvent e)

Description copied from class: KeyAdapter

Invoked when a key has been pressed.

Specified by:

keyPressed in interface KeyListener

Overrides:

keyPressed in class KeyAdapter

Parameters:

e - the event to be processed

keyReleased

public void keyReleased(KeyEvent e)

Description copied from class: KeyAdapter

Invoked when a key has been released.

Specified by:

keyReleased in interface KeyListener

Overrides:

keyReleased in class KeyAdapter

Parameters:

e - the event to be processed