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Java > Open Source Codes > net > sf > jasperreports > renderers > JRXYChartImageMapRenderer


1 /*
2  * ============================================================================
3  * GNU Lesser General Public License
4  * ============================================================================
5  *
6  * JasperReports - Free Java report-generating library.
7  * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * JasperSoft Corporation
24  * 303 Second Street, Suite 450 North
25  * San Francisco, CA 94107
26  * http://www.jaspersoft.com
27  */
28 package net.sf.jasperreports.renderers;
29
30 import java.util.Map JavaDoc;
31
32 import net.sf.jasperreports.engine.JRConstants;
33 import net.sf.jasperreports.engine.JRPrintHyperlink;
34 import net.sf.jasperreports.engine.util.Pair;
35
36 import org.jfree.chart.JFreeChart;
37 import org.jfree.chart.entity.ChartEntity;
38 import org.jfree.chart.entity.XYItemEntity;
39 import org.jfree.data.xy.XYDataset;
40
41
42 /**
43  * Image map renderer used for charts with XY datasets.
44  *
45  * @author Lucian Chirita (lucianc@users.sourceforge.net)
46  * @version $Id: JRXYChartImageMapRenderer.java 1364 2006-08-31 18:13:20 +0300 (Thu, 31 Aug 2006) lucianc $
47  */
48 public class JRXYChartImageMapRenderer extends JRAbstractChartImageMapRenderer
49 {
50     
51     private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
52     
53     private Map JavaDoc itemHyperlinks;
54     
55     public JRXYChartImageMapRenderer(JFreeChart chart, Map JavaDoc itemHyperlinks)
56     {
57         super(chart);
58         
59         this.itemHyperlinks = itemHyperlinks;
60     }
61
62
63     protected JRPrintHyperlink getEntityHyperlink(ChartEntity entity)
64     {
65         JRPrintHyperlink printHyperlink = null;
66         if (entity instanceof XYItemEntity)
67         {
68             XYItemEntity itemEntity = (XYItemEntity) entity;
69             XYDataset dataset = itemEntity.getDataset();
70             Comparable JavaDoc serie = dataset.getSeriesKey(itemEntity.getSeriesIndex());
71             Map JavaDoc serieHyperlinks = (Map JavaDoc) itemHyperlinks.get(serie);
72             if (serieHyperlinks != null)
73             {
74                 Number JavaDoc x = dataset.getX(itemEntity.getSeriesIndex(), itemEntity.getItem());
75                 Number JavaDoc y = dataset.getY(itemEntity.getSeriesIndex(), itemEntity.getItem());
76                 Object JavaDoc xyKey = new Pair(x, y);
77                 printHyperlink = (JRPrintHyperlink) serieHyperlinks.get(xyKey);
78             }
79         }
80         return printHyperlink;
81     }
82
83 }
84
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