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()
    Constructs a 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 Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Creates and returns a copy of this object.
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    getClass()
    Returns the runtime class of this Object.
    int
    hashCode()
    Returns a hash code value for this object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  • Field Details

    • repeatKeyAction

      protected Action repeatKeyAction
      Key code that is being generated for.

    • isKeyDown

      protected boolean isKeyDown
      Set to true while keyPressed is active.

  • Constructor Details

    • KeyHandler

      public KeyHandler()
      Constructs a KeyHandler.

  • Method Details

    • 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