Package net.sf.jasperreports.charts.util

Source Code of net.sf.jasperreports.charts.util.XYChartHyperlinkProvider

/*
* 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.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)
* @version $Id: XYChartHyperlinkProvider.java 3032 2009-08-27 11:32:28Z teodord $
*/
public class XYChartHyperlinkProvider implements ChartHyperlinkProvider
{
 
  private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
 
  private Map itemHyperlinks;
 
  public XYChartHyperlinkProvider(Map itemHyperlinks)
  {
    this.itemHyperlinks = itemHyperlinks;
  }


  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 serieHyperlinks = (Map) itemHyperlinks.get(serie);
      if (serieHyperlinks != null)
      {
        Number x = dataset.getX(itemEntity.getSeriesIndex(), itemEntity.getItem());
        Number y = dataset.getY(itemEntity.getSeriesIndex(), itemEntity.getItem());
        Object xyKey = new Pair(x, y);
        printHyperlink = (JRPrintHyperlink) serieHyperlinks.get(xyKey);
      }
    }
    return printHyperlink;
  }

  public boolean hasHyperlinks()
  {
    return itemHyperlinks != null && itemHyperlinks.size() > 0;
  }
}
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