Java tutorial
/** * DynamicReports - Free Java reporting library for creating reports dynamically * * Copyright (C) 2010 - 2016 Ricardo Mariaca * http://www.dynamicreports.org * * This file is part of DynamicReports. * * DynamicReports 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. * * DynamicReports 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 DynamicReports. If not, see <http://www.gnu.org/licenses/>. */ package net.sf.dynamicreports.examples.genericelement.openflashchart; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.HashMap; import net.sf.jasperreports.engine.JRGenericPrintElement; import net.sf.jasperreports.engine.export.GenericElementPdfHandler; import net.sf.jasperreports.engine.export.JRPdfExporterContext; import org.apache.commons.collections.ReferenceMap; import com.lowagie.text.Rectangle; import com.lowagie.text.pdf.PdfAnnotation; import com.lowagie.text.pdf.PdfArray; import com.lowagie.text.pdf.PdfDictionary; import com.lowagie.text.pdf.PdfFileSpecification; import com.lowagie.text.pdf.PdfIndirectObject; import com.lowagie.text.pdf.PdfIndirectReference; import com.lowagie.text.pdf.PdfName; import com.lowagie.text.pdf.PdfNameTree; import com.lowagie.text.pdf.PdfNumber; import com.lowagie.text.pdf.PdfString; import com.lowagie.text.pdf.PdfWriter; /** * @author Ricardo Mariaca (r.mariaca@dynamicreports.org) */ @SuppressWarnings("deprecation") public class OpenFlashChartPdfHandler implements GenericElementPdfHandler { private final ReferenceMap existingContexts = new ReferenceMap(ReferenceMap.WEAK, ReferenceMap.HARD); @Override public boolean toExport(JRGenericPrintElement element) { return true; } @Override public void exportElement(JRPdfExporterContext exporterContext, JRGenericPrintElement element) { try { PdfWriter writer = exporterContext.getPdfWriter(); PdfIndirectObject swfRef; boolean newContext = !existingContexts.containsKey(exporterContext); if (newContext) { PdfDictionary extensions = new PdfDictionary(); PdfDictionary adobeExtension = new PdfDictionary(); adobeExtension.put(new PdfName("BaseVersion"), PdfWriter.PDF_VERSION_1_7); adobeExtension.put(new PdfName("ExtensionLevel"), new PdfNumber(3)); extensions.put(new PdfName("ADBE"), adobeExtension); writer.getExtraCatalog().put(new PdfName("Extensions"), extensions); byte[] swfData = getChartSwf(); PdfFileSpecification swfFile = PdfFileSpecification.fileEmbedded(writer, null, "Open Flash Chart", swfData); swfRef = writer.addToBody(swfFile); existingContexts.put(exporterContext, swfRef); } else { swfRef = (PdfIndirectObject) existingContexts.get(exporterContext); } Rectangle rect = new Rectangle(element.getX() + exporterContext.getOffsetX(), exporterContext.getExportedReport().getPageHeight() - element.getY() - exporterContext.getOffsetY(), element.getX() + exporterContext.getOffsetX() + element.getWidth(), exporterContext.getExportedReport().getPageHeight() - element.getY() - exporterContext.getOffsetY() - element.getHeight()); PdfAnnotation ann = new PdfAnnotation(writer, rect); ann.put(PdfName.SUBTYPE, new PdfName("RichMedia")); PdfDictionary settings = new PdfDictionary(); PdfDictionary activation = new PdfDictionary(); activation.put(new PdfName("Condition"), new PdfName("PV")); settings.put(new PdfName("Activation"), activation); ann.put(new PdfName("RichMediaSettings"), settings); PdfDictionary content = new PdfDictionary(); HashMap<String, PdfIndirectReference> assets = new HashMap<String, PdfIndirectReference>(); assets.put("map.swf", swfRef.getIndirectReference()); PdfDictionary assetsDictionary = PdfNameTree.writeTree(assets, writer); content.put(new PdfName("Assets"), assetsDictionary); PdfArray configurations = new PdfArray(); PdfDictionary configuration = new PdfDictionary(); PdfArray instances = new PdfArray(); PdfDictionary instance = new PdfDictionary(); instance.put(new PdfName("Subtype"), new PdfName("Flash")); PdfDictionary params = new PdfDictionary(); String chartData = ((ChartGenerator) element .getParameterValue(ChartGenerator.PARAMETER_CHART_GENERATOR)).generateChart(); String vars = "inline_data=" + chartData; params.put(new PdfName("FlashVars"), new PdfString(vars)); instance.put(new PdfName("Params"), params); instance.put(new PdfName("Asset"), swfRef.getIndirectReference()); PdfIndirectObject instanceRef = writer.addToBody(instance); instances.add(instanceRef.getIndirectReference()); configuration.put(new PdfName("Instances"), instances); PdfIndirectObject configurationRef = writer.addToBody(configuration); configurations.add(configurationRef.getIndirectReference()); content.put(new PdfName("Configurations"), configurations); ann.put(new PdfName("RichMediaContent"), content); writer.addAnnotation(ann); } catch (Exception e) { throw new RuntimeException(e); } } private byte[] getChartSwf() throws IOException { InputStream is = OpenFlashChartPdfHandler.class.getResourceAsStream("open-flash-chart.swf"); ByteArrayOutputStream buffer = new ByteArrayOutputStream(); int nRead; byte[] data = new byte[16384]; while ((nRead = is.read(data, 0, data.length)) != -1) { buffer.write(data, 0, nRead); } buffer.flush(); return buffer.toByteArray(); } }