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Java > Open Source Codes > net > sf > jasperreports > charts > util > TimePeriodDatasetLabelGenerator


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.charts.util;
29
30 import java.util.Map JavaDoc;
31
32 import net.sf.jasperreports.engine.JRConstants;
33
34 import org.jfree.chart.labels.StandardXYItemLabelGenerator;
35 import org.jfree.data.time.TimePeriodValuesCollection;
36 import org.jfree.data.xy.XYDataset;
37
38
39 /**
40  * @author Teodor Danciu (teodord@users.sourceforge.net)
41  * @version $Id: TimePeriodDatasetLabelGenerator.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
42  */

43 public class TimePeriodDatasetLabelGenerator extends StandardXYItemLabelGenerator
44 {
45     private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
46     
47     private Map JavaDoc labelsMap = null;
48     
49     public TimePeriodDatasetLabelGenerator(Map JavaDoc labelsMap)
50     {
51         this.labelsMap = labelsMap;
52     }
53     
54     public String JavaDoc generateLabel(XYDataset dataset, int series, int item)
55     {
56         Comparable JavaDoc seriesName = dataset.getSeriesKey(series);
57         Map JavaDoc labels = (Map JavaDoc)labelsMap.get(seriesName);
58         if(labels != null)
59         {
60             return (String JavaDoc)labels.get(((TimePeriodValuesCollection)dataset).getSeries(series).getTimePeriod(item));
61         }
62         return super.generateLabel( dataset, series, item );
63     }
64 }
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