org.progeeks.jfreechart
Class DefaultFocusHandler

java.lang.Object
  org.progeeks.jfreechart.DefaultFocusHandler

All Implemented Interfaces:

ChartFocusHandler

Direct Known Subclasses:

ItemFocusHandler, SeriesFocusHandler, XYCrosshairsFocusHandler

public class DefaultFocusHandler
extends java.lang.Object
implements ChartFocusHandler

Base class that contains common handling routines for focusing but does not actually do any drawing.

Version:

$Revision: 1.4 $

Author:

esword

Field Summary

protected static Log

log

Constructor Summary

DefaultFocusHandler()

Method Summary

org.jfree.chart.JFreeChart	getChart()
MetaDatasetProducer	getProducer()
boolean	handleFocus(java.lang.Object newFocus)
void	setChart(org.jfree.chart.JFreeChart chart)
void	setProducer(MetaDatasetProducer producer)
protected org.jfree.data.general.Dataset	transformFocusData(java.lang.Object newFocus, MetaDatasetProducer producer) Creates a dataset containing 1 item - the focus.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final Log log

Constructor Detail

DefaultFocusHandler

public DefaultFocusHandler()

Method Detail

handleFocus

public boolean handleFocus(java.lang.Object newFocus)

Specified by:

handleFocus in interface ChartFocusHandler

transformFocusData

protected org.jfree.data.general.Dataset transformFocusData(java.lang.Object newFocus,
                                                            MetaDatasetProducer producer)

Creates a dataset containing 1 item - the focus. Subclasses can then extract the information from the item to determine how to show the focus.

Parameters:

newFocus -

producer -

getChart

public org.jfree.chart.JFreeChart getChart()

Specified by:

getChart in interface ChartFocusHandler

setChart

public void setChart(org.jfree.chart.JFreeChart chart)

Specified by:

setChart in interface ChartFocusHandler

getProducer

public MetaDatasetProducer getProducer()

Specified by:

getProducer in interface ChartFocusHandler

Returns:

Returns the producer.

setProducer

public void setProducer(MetaDatasetProducer producer)

Specified by:

setProducer in interface ChartFocusHandler

Parameters:

producer - The producer to set.