/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.charts.util;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.StringTokenizer;
import net.sf.jasperreports.charts.ChartTheme;
import net.sf.jasperreports.charts.ChartThemeBundle;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRPrintHyperlink;
import net.sf.jasperreports.engine.JRPrintImageArea;
import net.sf.jasperreports.engine.JRPrintImageAreaHyperlink;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.fill.DefaultChartTheme;
import net.sf.jasperreports.engine.util.JRProperties;
import net.sf.jasperreports.engine.util.JRSingletonCache;
import net.sf.jasperreports.extensions.ExtensionsEnvironment;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.ChartEntity;
import org.jfree.chart.entity.EntityCollection;
/**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: ChartUtil.java 3713 2010-04-08 11:06:05Z teodord $
*/
public final class ChartUtil
{
/**
*
*/
private static final JRSingletonCache CHART_RENDERER_FACTORY_CACHE = new JRSingletonCache(ChartRendererFactory.class);
/**
*
*/
public static List getImageAreaHyperlinks(
JFreeChart chart,
ChartHyperlinkProvider chartHyperlinkProvider,
Graphics2D grx,
Rectangle2D renderingArea
)// throws JRException
{
List areaHyperlinks = null;
if (chartHyperlinkProvider != null && chartHyperlinkProvider.hasHyperlinks())
{
ChartRenderingInfo renderingInfo = new ChartRenderingInfo();
if (grx == null)
{
chart.createBufferedImage((int) renderingArea.getWidth(), (int) renderingArea.getHeight(), renderingInfo);
}
else
{
chart.draw(grx, renderingArea, renderingInfo);
}
EntityCollection entityCollection = renderingInfo.getEntityCollection();
if (entityCollection != null && entityCollection.getEntityCount() > 0)
{
areaHyperlinks = new ArrayList(entityCollection.getEntityCount());
for (Iterator it = entityCollection.iterator(); it.hasNext();)
{
ChartEntity entity = (ChartEntity) it.next();
JRPrintHyperlink printHyperlink = chartHyperlinkProvider.getEntityHyperlink(entity);
if (printHyperlink != null)
{
JRPrintImageArea area = getImageArea(entity);
JRPrintImageAreaHyperlink areaHyperlink = new JRPrintImageAreaHyperlink();
areaHyperlink.setArea(area);
areaHyperlink.setHyperlink(printHyperlink);
areaHyperlinks.add(areaHyperlink);
}
}
}
}
return areaHyperlinks;
}
private static JRPrintImageArea getImageArea(ChartEntity entity)
{
JRPrintImageArea area = new JRPrintImageArea();
area.setShape(JRPrintImageArea.getShape(entity.getShapeType()));
int[] coordinates = getCoordinates(entity);
if (coordinates != null)
{
area.setCoordinates(coordinates);
}
return area;
}
private static int[] getCoordinates(ChartEntity entity)
{
int[] coordinates = null;
String shapeCoords = entity.getShapeCoords();
if (shapeCoords != null && shapeCoords.length() > 0)
{
StringTokenizer tokens = new StringTokenizer(shapeCoords, ",");
coordinates = new int[tokens.countTokens()];
int idx = 0;
while (tokens.hasMoreTokens())
{
String coord = tokens.nextToken();
coordinates[idx] = Integer.parseInt(coord);
++idx;
}
}
return coordinates;
}
/**
*
*/
public static ChartTheme getChartTheme(String themeName)
{
if (themeName == null)
{
return new DefaultChartTheme();
}
List themeBundles = ExtensionsEnvironment.getExtensionsRegistry().getExtensions(ChartThemeBundle.class);
for (Iterator it = themeBundles.iterator(); it.hasNext();)
{
ChartThemeBundle bundle = (ChartThemeBundle) it.next();
ChartTheme chartTheme = bundle.getChartTheme(themeName);
if (chartTheme != null)
{
return chartTheme;
}
}
throw new JRRuntimeException("Chart theme '" + themeName + "' not found.");
}
/**
*
*/
public static ChartRendererFactory getChartRendererFactory(String renderType)
{
ChartRendererFactory chartRendererFactory = null;
String factoryClass = JRProperties.getProperty(ChartRendererFactory.PROPERTY_CHART_RENDERER_FACTORY_PREFIX + renderType);
if (factoryClass == null)
{
throw new JRRuntimeException("No chart renderer factory specifyed for '" + renderType + "' render type.");
}
try
{
chartRendererFactory = (ChartRendererFactory) CHART_RENDERER_FACTORY_CACHE.getCachedInstance(factoryClass);
}
catch (JRException e)
{
throw new JRRuntimeException(e);
}
return chartRendererFactory;
}
private ChartUtil()
{
}
}