01: /*
02: * ============================================================================
03: * GNU Lesser General Public License
04: * ============================================================================
05: *
06: * JasperReports - Free Java report-generating library.
07: * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
08: *
09: * 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 10:27:35Z 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: }
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