kcl.waterloo.graphics

Class GJAbstractGraph.GraphCycler

java.lang.Object

kcl.waterloo.graphics.GJAbstractGraph.GraphCycler

All Implemented Interfaces:

java.awt.event.KeyListener, java.util.EventListener

Enclosing class:

GJAbstractGraph

public static class GJAbstractGraph.GraphCycler
extends java.lang.Object
implements java.awt.event.KeyListener

Handles keyboard input when the graph has focus. GraphCycler is a singleton instance of a KeyListener that is shared by all graphs in a JVM session.

Method Summary

Methods

Modifier and Type	Method and Description
static GJAbstractGraph.GraphCycler	getInstance() Return the singleton instance
void	keyPressed(java.awt.event.KeyEvent e)
void	keyReleased(java.awt.event.KeyEvent ke)
void	keyTyped(java.awt.event.KeyEvent e)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static GJAbstractGraph.GraphCycler getInstance()

Return the singleton instance

Returns:

the GraphCycler instance

keyTyped

public final void keyTyped(java.awt.event.KeyEvent e)

Specified by:

keyTyped in interface java.awt.event.KeyListener

keyPressed

public final void keyPressed(java.awt.event.KeyEvent e)

Specified by:

keyPressed in interface java.awt.event.KeyListener

keyReleased

public final void keyReleased(java.awt.event.KeyEvent ke)

Specified by:

keyReleased in interface java.awt.event.KeyListener