org.pentaho.reporting.libraries.designtime.swing

Class FocusTracker

java.lang.Object

org.pentaho.reporting.libraries.designtime.swing.FocusTracker

public abstract class FocusTracker
extends Object

A base class for implementations that have to track the current keyboard focus. This class takes care of all change events regarding the focus-manager and channels all focus-change events through a single update method.

Author:

Thomas Morgner

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FocusTracker() Creates a new focus-tracker and registers it on the permanent-focus-owner property.

Method Summary

Modifier and Type	Method and Description
protected abstract void	focusChanged(Component c) A notifier method that is called whenever the permanentFocusOwner property changed.

Methods inherited from class java.lang.Object

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

Constructor Detail

FocusTracker

protected FocusTracker()

Creates a new focus-tracker and registers it on the permanent-focus-owner property.

Method Detail

focusChanged

protected abstract void focusChanged(Component c)

A notifier method that is called whenever the permanentFocusOwner property changed.

Parameters:

c - the component that has the focus, or null if no component in this application has the focus.