Java tutorial
/* * JasperReports - Free Java Reporting Library. * Copyright (C) 2001 - 2019 TIBCO Software Inc. 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.util.Map; import net.sf.jasperreports.engine.JRConstants; import net.sf.jasperreports.engine.JRPrintHyperlink; import net.sf.jasperreports.engine.util.Pair; import org.jfree.chart.entity.ChartEntity; import org.jfree.chart.entity.XYItemEntity; import org.jfree.data.xy.XYDataset; /** * @author Teodor Danciu (teodord@users.sourceforge.net) */ public class XYChartHyperlinkProvider implements ChartHyperlinkProvider { private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID; private Map<Comparable<?>, Map<Pair, JRPrintHyperlink>> itemHyperlinks; public XYChartHyperlinkProvider(Map<Comparable<?>, Map<Pair, JRPrintHyperlink>> itemHyperlinks) { this.itemHyperlinks = itemHyperlinks; } @Override public JRPrintHyperlink getEntityHyperlink(ChartEntity entity) { JRPrintHyperlink printHyperlink = null; if (hasHyperlinks() && entity instanceof XYItemEntity) { XYItemEntity itemEntity = (XYItemEntity) entity; XYDataset dataset = itemEntity.getDataset(); Comparable<?> serie = dataset.getSeriesKey(itemEntity.getSeriesIndex()); Map<Pair, JRPrintHyperlink> serieHyperlinks = itemHyperlinks.get(serie); if (serieHyperlinks != null) { Number x = dataset.getX(itemEntity.getSeriesIndex(), itemEntity.getItem()); Number y = dataset.getY(itemEntity.getSeriesIndex(), itemEntity.getItem()); Pair<Number, Number> xyKey = new Pair<Number, Number>(x, y); printHyperlink = serieHyperlinks.get(xyKey); } } return printHyperlink; } @Override public boolean hasHyperlinks() { return itemHyperlinks != null && itemHyperlinks.size() > 0; } }