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
    keyTyped(KeyEvent e)
    Invoked when a key has been typed.

    Methods declared in class KeyAdapter

    keyPressed, keyReleased
    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.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • 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