net.sf.jasperreports.charts.util.SvgChartRendererFactory.java Source code

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Here is the source code for net.sf.jasperreports.charts.util.SvgChartRendererFactory.java

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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports 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 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports 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 JasperReports. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.jasperreports.charts.util;

import java.awt.geom.Rectangle2D;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.util.List;

import org.apache.batik.dom.GenericDOMImplementation;
import org.apache.batik.svggen.SVGGraphics2D;
import org.apache.batik.svggen.SVGGraphics2DIOException;
import org.jfree.chart.JFreeChart;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;

import net.sf.jasperreports.engine.JRPrintImageAreaHyperlink;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JasperReportsContext;
import net.sf.jasperreports.renderers.Renderable;
import net.sf.jasperreports.renderers.SimpleRenderToImageAwareDataRenderer;

/**
 * @author Teodor Danciu (teodord@users.sourceforge.net)
 */
public class SvgChartRendererFactory extends AbstractChartRenderableFactory {

    @Override
    public Renderable getRenderable(JasperReportsContext jasperReportsContext, JFreeChart chart,
            ChartHyperlinkProvider chartHyperlinkProvider, Rectangle2D rectangle) {
        DOMImplementation domImpl = GenericDOMImplementation.getDOMImplementation();
        Document document = domImpl.createDocument(null, "svg", null);
        SVGGraphics2D grx = new SVGGraphics2D(document);

        grx.setSVGCanvasSize(rectangle.getBounds().getSize());

        List<JRPrintImageAreaHyperlink> areaHyperlinks = null;

        if (chartHyperlinkProvider != null && chartHyperlinkProvider.hasHyperlinks()) {
            areaHyperlinks = ChartUtil.getImageAreaHyperlinks(chart, chartHyperlinkProvider, grx, rectangle);
        } else {
            chart.draw(grx, rectangle);
        }

        try {
            StringWriter swriter = new StringWriter();
            grx.stream(swriter);
            byte[] svgData = null;
            try {
                svgData = swriter.getBuffer().toString().getBytes("UTF-8");
            } catch (UnsupportedEncodingException e) {
                throw new JRRuntimeException(e);
            }
            return new SimpleRenderToImageAwareDataRenderer(svgData, areaHyperlinks);
        } catch (SVGGraphics2DIOException e) {
            throw new JRRuntimeException(e);
        }
    }

}