Class 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.

Fields

Modifier and Type Field and Description
protected boolean isKeyDown

Set to true while keyPressed is active.
protected Action repeatKeyAction

Key code that is being generated for.

Constructors

Constructor and Description
KeyHandler()

Methods

Modifier and Type Method and 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

Fields

repeatKeyAction

protected Action repeatKeyAction

Key code that is being generated for.

isKeyDown

protected boolean isKeyDown

Set to true while keyPressed is active.

Constructors

KeyHandler

public KeyHandler()

Methods

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

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

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

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https://docs.oracle.com/javase/8/docs/api/javax/swing/plaf/basic/BasicTreeUI.KeyHandler.html