/***********************************************************************************************
* 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.axisChart;
import org.krysalis.jcharts.chartData.interfaces.IStockChartDataSet;
import org.krysalis.jcharts.chartData.interfaces.IDataSeries;
import org.krysalis.jcharts.imageMap.CircleMapArea;
import org.krysalis.jcharts.properties.StockChartProperties;
import org.krysalis.jcharts.properties.DataAxisProperties;
import org.krysalis.jcharts.types.StockChartDataType;
import com.google.code.appengine.awt.*;
import com.google.code.appengine.awt.geom.Line2D;
/*************************************************************************************
*
* @author Nathaniel Auvil
* @version $Id: StockChart.java,v 1.1 2003/05/17 16:56:57 nathaniel_auvil Exp $
************************************************************************************/
abstract class StockChart
{
/********************************************************************************************
* Draws the chart
*
* @param axisChart
* @param iStockChartDataSet
*********************************************************************************************/
static final void render( AxisChart axisChart, IStockChartDataSet iStockChartDataSet )
{
StockChartProperties stockChartProperties=(StockChartProperties) iStockChartDataSet.getChartTypeProperties();
Graphics2D g2d=axisChart.getGraphics2D();
DataAxisProperties dataAxisProperties= (DataAxisProperties) axisChart.getAxisProperties().getYAxisProperties();
IDataSeries iDataSeries= (IDataSeries) axisChart.getIAxisDataSeries();
//---cache the computed values
//float[][] yAxisCoordinates=new float[ iStockChartDataSet.getNumberOfDataSets() ][ iStockChartDataSet.getNumberOfDataItems() ];
//---init for first segment
Line2D.Float line=new Line2D.Float( axisChart.getXAxis().getTickStart(),
0,
axisChart.getXAxis().getTickStart(),
0 );
Line2D.Float openLine=null;
if( iStockChartDataSet.hasOpenValues() )
{
openLine=new Line2D.Float( axisChart.getXAxis().getTickStart() - stockChartProperties.getOpenPixelLength() - 1,
0,
axisChart.getXAxis().getTickStart() - 1,
0 );
}
Line2D.Float closeLine=null;
if( iStockChartDataSet.hasCloseValues() )
{
closeLine=new Line2D.Float( axisChart.getXAxis().getTickStart() + 1,
0,
axisChart.getXAxis().getTickStart() + stockChartProperties.getClosePixelLength() + 1,
0 );
}
//LOOP
//---draw each line to the image
for( int i=0; i < iStockChartDataSet.getNumberOfDataItems(); i++ )
{
line.y1= axisChart.getYAxis().computeAxisCoordinate( axisChart.getYAxis().getOrigin(),
iStockChartDataSet.getLowValue( i ),
axisChart.getYAxis().getScaleCalculator().getMinValue() );
line.y2= axisChart.getYAxis().computeAxisCoordinate( axisChart.getYAxis().getOrigin(),
iStockChartDataSet.getHighValue( i ),
axisChart.getYAxis().getScaleCalculator().getMinValue() );
String label;
if( axisChart.getXAxis().getAxisLabelsGroup() != null )
{
label = axisChart.getXAxis().getAxisLabelsGroup().getTextTag( i ).getText();
}
else
{
label = null;
}
//---if we are generating an ImageMap, store the image coordinates
if( axisChart.getGenerateImageMapFlag() )
{
axisChart.getImageMap().addImageMapArea( new CircleMapArea( line.x1,
line.y1,
iStockChartDataSet.getLowValue( i ),
label,
iStockChartDataSet.getLegendLabel( StockChartDataType.LOW.getInt() ) ) );
axisChart.getImageMap().addImageMapArea( new CircleMapArea( line.x2,
line.y2,
iStockChartDataSet.getHighValue( i ),
label,
iStockChartDataSet.getLegendLabel( StockChartDataType.HIGH.getInt() ) ) );
}
g2d.setPaint( iStockChartDataSet.getPaint( StockChartDataType.HIGH.getInt() ) );
g2d.setStroke( stockChartProperties.getHiLowStroke() );
g2d.draw( line );
line.x1+=axisChart.getXAxis().getScalePixelWidth();
line.x2=line.x1;
if( openLine != null )
{
if( iStockChartDataSet.getOpenValue( i ) != Double.NaN )
{
openLine.y1= axisChart.getYAxis().computeAxisCoordinate( axisChart.getYAxis().getOrigin(),
iStockChartDataSet.getOpenValue( i ),
axisChart.getYAxis().getScaleCalculator().getMinValue() );
openLine.y2=openLine.y1;
g2d.setPaint( iStockChartDataSet.getPaint( StockChartDataType.OPEN.getInt() ) );
g2d.setStroke( stockChartProperties.getOpenStroke() );
g2d.draw( openLine );
//---if we are generating an ImageMap, store the image coordinates
if( axisChart.getGenerateImageMapFlag() )
{
axisChart.getImageMap().addImageMapArea( new CircleMapArea( openLine.x1,
openLine.y1,
iStockChartDataSet.getOpenValue( i ),
label,
iStockChartDataSet.getLegendLabel( StockChartDataType.OPEN.getInt() ) ) );
}
openLine.x1+=axisChart.getXAxis().getScalePixelWidth();
openLine.x2+=axisChart.getXAxis().getScalePixelWidth();
}
}
if( closeLine != null )
{
if( iStockChartDataSet.getOpenValue( i ) != Double.NaN )
{
closeLine.y1= axisChart.getYAxis().computeAxisCoordinate( axisChart.getYAxis().getOrigin(),
iStockChartDataSet.getCloseValue( i ),
axisChart.getYAxis().getScaleCalculator().getMinValue() );
closeLine.y2=closeLine.y1;
g2d.setPaint( iStockChartDataSet.getPaint( StockChartDataType.CLOSE.getInt() ) );
g2d.setStroke( stockChartProperties.getCloseStroke() );
g2d.draw( closeLine );
//---if we are generating an ImageMap, store the image coordinates
if( axisChart.getGenerateImageMapFlag() )
{
axisChart.getImageMap().addImageMapArea( new CircleMapArea( closeLine.x2,
closeLine.y2,
iStockChartDataSet.getCloseValue( i ),
label,
iStockChartDataSet.getLegendLabel( StockChartDataType.CLOSE.getInt() ) ) );
}
closeLine.x1+=axisChart.getXAxis().getScalePixelWidth();
closeLine.x2+=axisChart.getXAxis().getScalePixelWidth();
}
}
}
}
}