JRChartCustomizer


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  
29  /*
30   * Contributors:
31   * Michael McMahon - Michael.McMahon@activewire.net
32   */
33  
34  package net.sf.jasperreports.engine;
35  
36  import org.jfree.chart.JFreeChart;
37  
38  /**
39   * This interface allows users to provide pluggable chart customizers. A class that implements this interface can
40   * be defined and its name must be specified in the report template. At fill time, the corresponding <i>customize()</i>
41   * method of this class will be called, if advanced chart customization is needed.
42   * <p/>
43   * If values of report parameters, variables or fields are needed in the customization, the customizer implementation
44   * should extend {@link net.sf.jasperreports.engine.JRAbstractChartCustomizer JRAbstractChartCustomizer}
45   * to gain access to such values.
46   *
47   * @author Michael McMahon (Michael.McMahon@activewire.net)
48   * @version $Id: JRChartCustomizer.java 1229 2006-04-19 13:27:35 +0300 (Wed, 19 Apr 2006) teodord $
49   */
50  public interface JRChartCustomizer {
51  
52      /**
53       * This method is called at fill time, before the chart is rendered.
54       * @param chart the JFreeChart object, which can be accessed and modified
55       * @param jasperChart the JasperReports version of the chart, containing data that might be needed in
56       * customization
57       */
58      public void customize(JFreeChart chart, JRChart jasperChart);
59  
60  }
61  
62
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