FocusTracker (LibSwing 9.3.0.0-424 API)

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 Description

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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	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.