/***********************************************************************************************
* File Info: $Id: AxisChartDataProcessor.java,v 1.2 2003/08/08 08:51:27 nicolaken Exp $
* Copyright (C) 2000
* Author: Nathaniel G. Auvil
* Contributor(s):
*
* Copyright 2002 (C) Nathaniel G. Auvil. All Rights Reserved.
*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
* statements and notices. Redistributions must also contain a
* copy of this document.
*
* 2. Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. The name "jCharts" or "Nathaniel G. Auvil" must not be used to
* endorse or promote products derived from this Software without
* prior written permission of Nathaniel G. Auvil. For written
* permission, please contact nathaniel_auvil@users.sourceforge.net
*
* 4. Products derived from this Software may not be called "jCharts"
* nor may "jCharts" appear in their names without prior written
* permission of Nathaniel G. Auvil. jCharts is a registered
* trademark of Nathaniel G. Auvil.
*
* 5. Due credit should be given to the jCharts Project (http://jcharts.sourceforge.net/).
*
* THIS SOFTWARE IS PROVIDED BY Nathaniel G. Auvil AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
* NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* jCharts OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
************************************************************************************************/
package org.krysalis.jcharts.chartData.processors;
import com.google.code.appengine.awt.font.FontRenderContext;
import java.util.Iterator;
import org.krysalis.jcharts.axisChart.AxisChart;
import org.krysalis.jcharts.chartData.interfaces.IAxisChartDataSet;
import org.krysalis.jcharts.chartData.interfaces.IAxisPlotDataSet;
import org.krysalis.jcharts.chartData.interfaces.IDataSeries;
import org.krysalis.jcharts.chartData.interfaces.IStockChartDataSet;
import org.krysalis.jcharts.properties.DataAxisProperties;
import org.krysalis.jcharts.types.ChartType;
/*******************************************************************************************
*
********************************************************************************************/
public class AxisChartDataProcessor
{
private double max;
private double min;
//private TextLayout titleTextLayout;
//---need this so know how many items are on the 'label' axis.
private int numberOfElementsInADataSet;
/******************************************************************************************
* Constructor
*
*******************************************************************************************/
public AxisChartDataProcessor()
{
}
/******************************************************************************************
* Method to perform all chart data processing.
*
* @param axisChart
******************************************************************************************/
public void processData( AxisChart axisChart, FontRenderContext fontRenderContext )
{
//todo would it make sense to do this and do the axis titles?
/*
if( axisChart.getIDataSeries().getChartTitle() != null )
{
this.titleTextLayout= new TextLayout( axisChart.getIDataSeries().getChartTitle(),
axisChart.getChartProperties().getTitleFont(),
fontRenderContext );
}
*/
DataAxisProperties dataAxisProperties;
if( axisChart.getAxisProperties().isPlotHorizontal() )
{
dataAxisProperties= (DataAxisProperties) axisChart.getAxisProperties().getXAxisProperties();
}
else
{
dataAxisProperties= (DataAxisProperties) axisChart.getAxisProperties().getYAxisProperties();
}
//---if there is a user defined scale, there is no reason to process the data.
if( ! dataAxisProperties.hasUserDefinedScale() )
{
this.processDataSet( (IDataSeries) axisChart.getIAxisDataSeries() );
}
//---need to set the number of items on the scale in case there are no labels displayed
Iterator iterator = axisChart.getIAxisDataSeries().getIAxisPlotDataSetIterator();
IAxisPlotDataSet iAxisPlotDataSet = ( IAxisPlotDataSet ) iterator.next();
this.numberOfElementsInADataSet= iAxisPlotDataSet.getNumberOfDataItems();
//todo does it make sense to do the legend label processing here?
/*
if( axisChart.hasLegend() )
{
//this.lengendLabelProcessor= new TextProcessor();
// this.lengendLabelProcessor
}
*/
}
/******************************************************************************************
* Processes the numeric values in the chart data. If there is a user defined scale
* there is no need to call this.
*
* @param iDataSeries
******************************************************************************************/
private void processDataSet( IDataSeries iDataSeries )
{
IAxisPlotDataSet iAxisPlotDataSet;
Iterator iterator = iDataSeries.getIAxisPlotDataSetIterator();
//LOOP
while( iterator.hasNext() )
{
iAxisPlotDataSet = ( IAxisPlotDataSet ) iterator.next();
if( iAxisPlotDataSet.getChartType().isStacked() )
{
//---StockChartDataSet is NEVER stacked!!!!
StackedDataProcessor.processData( ( IAxisChartDataSet ) iAxisPlotDataSet, this );
}
else
{
//---stock charts dont fit well here as the data comes in structured.
//---in this case only care about the high and low; no need to search close, open, volume
if( iAxisPlotDataSet.getChartType().equals( ChartType.STOCK ) )
{
StockDataProcessor.processData( ( IStockChartDataSet ) iAxisPlotDataSet, this );
}
else
{
NonStackedDataProcessor.processData( ( IAxisChartDataSet ) iAxisPlotDataSet, this );
}
}
}
}
/******************************************************************************************
*
*
******************************************************************************************/
void setMaxValue( double max )
{
this.max = max;
}
/******************************************************************************************
*
*
*
******************************************************************************************/
public double getMaxValue()
{
return this.max;
}
/******************************************************************************************
*
*
******************************************************************************************/
void setMinValue( double min )
{
this.min = min;
}
/******************************************************************************************
*
*
*
******************************************************************************************/
public double getMinValue()
{
return this.min;
}
public int getNumberOfElementsInADataSet()
{
return numberOfElementsInADataSet;
}
/*********************************************************************************************
* Enables the testing routines to display the contents of this Object.
*
* @param htmlGenerator
**********************************************************************************************
public void toHTML( HTMLGenerator htmlGenerator )
{
super.toHTML( htmlGenerator );
String name= this.getClass().getSuperclass().getName() + "->";
//---calling on instance of YAxis or XAxis
Field[] fields= this.getClass().getSuperclass().getDeclaredFields();
for( int i=0; i< fields.length; i++ )
{
htmlGenerator.addField( name + fields[ i ].getName(), fields[ i ].get( this ) );
}
}
*/
}