/***********************************************************************************************
* 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.IAxisChartDataSet;
import org.krysalis.jcharts.chartData.interfaces.IDataSeries;
import org.krysalis.jcharts.imageMap.CircleMapArea;
import org.krysalis.jcharts.properties.PointChartProperties;
import org.krysalis.jcharts.properties.DataAxisProperties;
import com.google.code.appengine.awt.*;
import com.google.code.appengine.awt.geom.AffineTransform;
import com.google.code.appengine.awt.geom.Rectangle2D;
/*************************************************************************************
*
* @author Nathaniel Auvil
* @version $Id: PointChart.java,v 1.1 2003/05/17 16:56:57 nathaniel_auvil Exp $
************************************************************************************/
abstract class PointChart
{
/********************************************************************************************
* Draws the chart
*
* @param axisChart
* @param iAxisChartDataSet
*********************************************************************************************/
static void render( AxisChart axisChart, IAxisChartDataSet iAxisChartDataSet )
{
Graphics2D g2d=axisChart.getGraphics2D();
PointChartProperties pointChartProperties=(PointChartProperties) iAxisChartDataSet.getChartTypeProperties();
//---Point Charts can not be horizontal so we know the y-axis is DataAxisProperties
DataAxisProperties dataAxisProperties= (DataAxisProperties) axisChart.getAxisProperties().getYAxisProperties();
IDataSeries iDataSeries= (IDataSeries) axisChart.getIAxisDataSeries();
float xPosition=axisChart.getXAxis().getTickStart();
float yPosition;
//---when centering the shapes on the points, need x and y offset to do this
double[] cornerXOffset=new double[ iAxisChartDataSet.getNumberOfDataSets() ];
double[] cornerYOffset=new double[ iAxisChartDataSet.getNumberOfDataSets() ];
//---get the original transform so can reset it.
AffineTransform affineTransform=g2d.getTransform();
Rectangle2D rectangle;
//LOOP
//---pre-compute the dimensions of each Shape so do not do it in loop.
for( int i=0; i < iAxisChartDataSet.getNumberOfDataSets(); i++ )
{
rectangle=pointChartProperties.getShape( i ).getBounds2D();
cornerXOffset[ i ]=rectangle.getWidth() / 2;
cornerYOffset[ i ]=rectangle.getHeight() / 2;
}
g2d.setStroke( PointChartProperties.DEFAULT_POINT_BORDER_STROKE );
//LOOP
//---for each item in data set...
for( int i=0; i < iAxisChartDataSet.getNumberOfDataItems(); i++ )
{
//LOOP
//---for each data set
for( int dataSetIndex=0; dataSetIndex < iAxisChartDataSet.getNumberOfDataSets(); dataSetIndex++ )
{
//---if the value is NaN, do not display a value
if( Double.isNaN( iAxisChartDataSet.getValue( dataSetIndex, i ) ) )
{
continue;
}
yPosition= axisChart.getYAxis().computeAxisCoordinate( axisChart.getYAxis().getOrigin(),
iAxisChartDataSet.getValue( dataSetIndex, i ),
axisChart.getYAxis().getScaleCalculator().getMinValue() );
//---if we are generating an ImageMap, store the image coordinates
if( axisChart.getGenerateImageMapFlag() )
{
String label;
if( axisChart.getXAxis().getAxisLabelsGroup() != null )
{
label = axisChart.getXAxis().getAxisLabelsGroup().getTextTag( i ).getText();
}
else
{
label = null;
}
axisChart.getImageMap().addImageMapArea( new CircleMapArea( xPosition,
yPosition,
iAxisChartDataSet.getValue( dataSetIndex, i ),
label,
iAxisChartDataSet.getLegendLabel( dataSetIndex ) ) );
}
//---translate the Shape into position.
g2d.translate( xPosition - cornerXOffset[ dataSetIndex ], yPosition - cornerYOffset[ dataSetIndex ] );
g2d.setPaint( iAxisChartDataSet.getPaint( dataSetIndex ) );
//---render the point
if( pointChartProperties.getFillPointsFlag( dataSetIndex ) )
{
//---fill the point
g2d.fill( pointChartProperties.getShape( dataSetIndex ) );
//---if we are filling the points, see if we should outline the Shape
if( pointChartProperties.getPointOutlinePaints( dataSetIndex ) != null )
{
g2d.setPaint( pointChartProperties.getPointOutlinePaints( dataSetIndex ) );
g2d.draw( pointChartProperties.getShape( dataSetIndex ) );
}
}
else
{
//---if we are NOT filling the points, use the Paint specified with the DataSet to outline.
g2d.draw( pointChartProperties.getShape( dataSetIndex ) );
}
g2d.setTransform( affineTransform );
}
//---move right to the next x-axis scale item
xPosition+=axisChart.getXAxis().getScalePixelWidth();
}
}
}