/***********************************************************************************************
* 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.ChartDataException;
import org.krysalis.jcharts.chartData.interfaces.IAxisChartDataSet;
import org.krysalis.jcharts.imageMap.RectMapArea;
import org.krysalis.jcharts.properties.DataAxisProperties;
import org.krysalis.jcharts.properties.StackedBarChartProperties;
import com.google.code.appengine.awt.*;
import com.google.code.appengine.awt.geom.Rectangle2D;
/*************************************************************************************
*
* @author Nathaniel Auvil
* @version $Id: StackedBarChart.java,v 1.1 2003/05/17 16:56:57 nathaniel_auvil Exp $
************************************************************************************/
abstract class StackedBarChart
{
/********************************************************************************************
* Draws the chart
*
* @param axisChart
*********************************************************************************************/
static void render( AxisChart axisChart, IAxisChartDataSet iAxisChartDataSet ) throws ChartDataException
{
Graphics2D g2d = axisChart.getGraphics2D();
StackedBarChartProperties stackedBarChartProperties = (StackedBarChartProperties) iAxisChartDataSet.getChartTypeProperties();
float barWidth;
//---y axis position on screen to start drawing.
float startingX;
float startingY;
float width;
float height;
DataAxisProperties dataAxisProperties;
if( axisChart.getAxisProperties().isPlotHorizontal() )
{
dataAxisProperties = (DataAxisProperties) axisChart.getAxisProperties().getXAxisProperties();
barWidth = axisChart.getYAxis().getScalePixelWidth() * stackedBarChartProperties.getPercentage();
startingX = axisChart.getXAxis().getZeroLineCoordinate();
startingY = axisChart.getYAxis().getLastTickY() - (barWidth / 2);
width = 0;
height = barWidth;
Rectangle2D.Float rectangle = new Rectangle2D.Float( startingX, startingY, width, height );
StackedBarChart.horizontalPlot( axisChart, iAxisChartDataSet, stackedBarChartProperties, dataAxisProperties, g2d, rectangle, startingX );
}
else
{
dataAxisProperties = (DataAxisProperties) axisChart.getAxisProperties().getYAxisProperties();
barWidth = axisChart.getXAxis().getScalePixelWidth() * stackedBarChartProperties.getPercentage();
startingX = axisChart.getXAxis().getTickStart() - (barWidth / 2);
startingY = axisChart.getYAxis().getZeroLineCoordinate();
width = barWidth;
height = 0;
Rectangle2D.Float rectangle = new Rectangle2D.Float( startingX, startingY, width, height );
StackedBarChart.verticalPlot( axisChart, iAxisChartDataSet, stackedBarChartProperties, dataAxisProperties, g2d, rectangle, startingY );
}
}
/**************************************************************************************
*
* @param axisChart
* @param iAxisChartDataSet
* @param stackedBarChartProperties
* @param dataAxisProperties
* @param g2d
* @param rectangle
* @param startingX
**************************************************************************************/
private static void horizontalPlot( AxisChart axisChart,
IAxisChartDataSet iAxisChartDataSet,
StackedBarChartProperties stackedBarChartProperties,
DataAxisProperties dataAxisProperties,
Graphics2D g2d,
Rectangle2D.Float rectangle,
float startingX ) throws ChartDataException
{
int imageMapLabelIndex = axisChart.getYAxis().getNumberOfScaleItems() - 1;
//LOOP
//---initial postion of each line.
for( int i = 0; i < iAxisChartDataSet.getNumberOfDataItems(); i++ )
{
//---draw each bar in stack
for( int j = 0; j < iAxisChartDataSet.getNumberOfDataSets(); j++ )
{
//---if segment has a zero value, draw nothing.
if( iAxisChartDataSet.getValue( j, i ) == 0 )
{
continue;
}
else if( iAxisChartDataSet.getValue( j, i ) < 0 )
{
//todo i think we could support this, but it can wait
throw new ChartDataException( "Negative values in Stacked Bar charts are not supported yet... Coming soon..." );
/*
rectangle.x = axisChart.getXAxis().computeAxisCoordinate( axisChart.getXAxis().getOrigin(),
iAxisChartDataSet.getValue( 0, i ),
dataAxisProperties.getScaleCalculator().getMinValue() );
rectangle.width = startingX - rectangle.x;
*/
}
else
{
rectangle.width = BarChart.computeScaleHeightOfValue( iAxisChartDataSet.getValue( j, i ), axisChart.getXAxis().getOneUnitPixelSize() );
//rectangle.x = startingX;
//rectangle.width = BarChart.computeScaleHeightOfValue( iAxisChartDataSet.getValue( j, i ), axisChart.getXAxis().getOneUnitPixelSize() );
}
g2d.setPaint( iAxisChartDataSet.getPaint( j ) );
g2d.fill( rectangle );
if( stackedBarChartProperties.getShowOutlinesFlag() )
{
stackedBarChartProperties.getBarOutlineStroke().draw( g2d, rectangle );
}
//---if we are generating an ImageMap, store the image coordinates
if( axisChart.getGenerateImageMapFlag() )
{
String label = null;
if( axisChart.getYAxis().getAxisLabelsGroup() != null )
{
label = axisChart.getYAxis().getAxisLabelsGroup().getTextTag( imageMapLabelIndex ).getText();
}
axisChart.getImageMap().addImageMapArea( new RectMapArea( rectangle,
iAxisChartDataSet.getValue( j, i ),
label,
iAxisChartDataSet.getLegendLabel( j ) ) );
}
rectangle.x += rectangle.width;
}
imageMapLabelIndex--;
rectangle.y += axisChart.getYAxis().getScalePixelWidth();
rectangle.x = startingX;
}
}
/**************************************************************************************
*
* @param axisChart
* @param iAxisChartDataSet
* @param stackedBarChartProperties
* @param dataAxisProperties
* @param g2d
* @param rectangle
* @param startingY
**************************************************************************************/
private static void verticalPlot( AxisChart axisChart,
IAxisChartDataSet iAxisChartDataSet,
StackedBarChartProperties stackedBarChartProperties,
DataAxisProperties dataAxisProperties,
Graphics2D g2d,
Rectangle2D.Float rectangle,
float startingY )
{
//IDataSeries iDataSeries= (IDataSeries) axisChart.getIAxisDataSeries();
//LOOP
//---initial postion of each line.
for( int i = 0; i < iAxisChartDataSet.getNumberOfDataItems(); i++ )
{
//---draw each bar in stack
for( int j = 0; j < iAxisChartDataSet.getNumberOfDataSets(); j++ )
{
//---if segment has a zero value, draw nothing.
if( iAxisChartDataSet.getValue( j, i ) == 0 )
{
continue;
}
rectangle.height = BarChart.computeScaleHeightOfValue( iAxisChartDataSet.getValue( j, i ), axisChart.getYAxis().getOneUnitPixelSize() );
rectangle.y -= rectangle.height;
g2d.setPaint( iAxisChartDataSet.getPaint( j ) );
g2d.fill( rectangle );
if( stackedBarChartProperties.getShowOutlinesFlag() )
{
stackedBarChartProperties.getBarOutlineStroke().draw( g2d, rectangle );
}
//---if we are generating an ImageMap, store the image coordinates
if( axisChart.getGenerateImageMapFlag() )
{
String label = null;
if( axisChart.getXAxis().getAxisLabelsGroup() != null )
{
label = axisChart.getXAxis().getAxisLabelsGroup().getTextTag( i ).getText();
}
axisChart.getImageMap().addImageMapArea( new RectMapArea( rectangle,
iAxisChartDataSet.getValue( j, i ),
label,
iAxisChartDataSet.getLegendLabel( j ) ) );
}
}
rectangle.x += axisChart.getXAxis().getScalePixelWidth();
rectangle.y = startingY;
}
}
}