Ptidej-v5.2-master/Ptidej Reporting Tests/src/net/sf/jasperreports/engine/convert/ChartConverter.java
/*
 * ============================================================================
 * GNU Lesser General Public License
 * ============================================================================
 *
 * JasperReports - Free Java report-generating library.
 * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
 * 
 * This library 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 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 * 
 * JasperSoft Corporation
 * 303 Second Street, Suite 450 North
 * San Francisco, CA 94107
 * http://www.jaspersoft.com
 */

/*
 * Contributors:
 * Eugene D - eugenedruy@users.sourceforge.net 
 * Adrian Jackson - iapetus@users.sourceforge.net
 * David Taylor - exodussystems@users.sourceforge.net
 * Lars Kristensen - llk@users.sourceforge.net
 */
package net.sf.jasperreports.engine.convert;

import net.sf.jasperreports.engine.JRChart;
import net.sf.jasperreports.engine.JRElement;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRImage;
import net.sf.jasperreports.engine.JRImageRenderer;
import net.sf.jasperreports.engine.JRPrintElement;
import net.sf.jasperreports.engine.JRRenderable;
import net.sf.jasperreports.engine.base.JRBasePrintImage;
import net.sf.jasperreports.engine.util.JRExpressionUtil;
import net.sf.jasperreports.engine.util.JRImageLoader;


/**
 * @author Teodor Danciu (teodord@users.sourceforge.net)
 * @version $Id: ChartConverter.java,v 1.1 2008/09/29 16:20:07 guehene Exp $
 */
public class ChartConverter extends ElementConverter
{

	/**
	 *
	 */
	private final static ChartConverter INSTANCE = new ChartConverter();
	
	/**
	 *
	 */
	private ChartConverter()
	{
	}

	/**
	 *
	 */
	public static ChartConverter getInstance()
	{
		return INSTANCE;
	}
	
	/**
	 *
	 */
	public JRPrintElement convert(ReportConverter reportConverter, JRElement element)
	{
		JRBasePrintImage printImage = new JRBasePrintImage(reportConverter.getDefaultStyleProvider());
		JRChart chart = (JRChart)element;

		copyElement(reportConverter, chart, printImage);
		
		printImage.copyBox(chart.getLineBox());
		
		printImage.setAnchorName(JRExpressionUtil.getExpressionText(chart.getAnchorNameExpression()));
		printImage.setBookmarkLevel(chart.getBookmarkLevel());
		printImage.setLinkType(chart.getLinkType());
		printImage.setOnErrorType(JRImage.ON_ERROR_TYPE_ICON);
		printImage.setRenderer(getRenderer(chart));
		printImage.setScaleImage(JRImage.SCALE_IMAGE_CLIP);
		
		return printImage;
	}

	/**
	 * 
	 */
	private JRRenderable getRenderer(JRChart chart)
	{
		try
		{
			chart.setStretchType(JRElement.STRETCH_TYPE_NO_STRETCH);
			return 
				JRImageRenderer.getInstance(
					JRImageLoader.CHART_IMAGE_RESOURCE, 
					JRImage.ON_ERROR_TYPE_ERROR
					);
		}
		catch (JRException e)
		{
			e.printStackTrace();
		}
		
		return null;
	}

}
