Examples of net.sf.jasperreports.engine.export.JRGraphics2DExporter

Package net.sf.jasperreports.engine.export

Examples of net.sf.jasperreports.engine.export.JRGraphics2DExporter

net.sf.jasperreports.engine.export.JRGraphics2DExporter
Exports a JasperReports document to a Graphics2D object. Since all font measurement and layout calculation during report filling is done using AWT, this is considered the perfect exporter, unlike the others, which are only approximations of the initial document.
As its name indicates, this exporter is special because it does not produce files or does not send character or binary data to an output stream. @author Teodor Danciu (teodord@users.sourceforge.net) @version $Id: JRGraphics2DExporter.java 4283 2011-04-12 16:03:38Z teodord $

      (int)(jasperPrint.getPageWidth() * zoom) + 1,
      (int)(jasperPrint.getPageHeight() * zoom) + 1,
      BufferedImage.TYPE_INT_RGB
      );


    JRGraphics2DExporter exporter = new JRGraphics2DExporter();
    exporter.setParameter(JRExporterParameter.JASPER_PRINT, this.jasperPrint);
    exporter.setParameter(JRGraphics2DExporterParameter.GRAPHICS_2D, pageImage.getGraphics());
    exporter.setParameter(JRExporterParameter.PAGE_INDEX, new Integer(pageIndex));
    exporter.setParameter(JRGraphics2DExporterParameter.ZOOM_RATIO, new Float(zoom));
    exporter.exportReport();


    return pageImage;
  }

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  /**
   * 
   */
  protected JRGraphics2DExporter getGraphics2DExporter() throws JRException
  {
    return new JRGraphics2DExporter();
  }

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      boolean export = true;
      int index = 0;
      while(export==true){
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D gr2 = image.createGraphics();
        JRExporter exporter = new JRGraphics2DExporter();
        exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
        exporter.setParameter(JRGraphics2DExporterParameter.GRAPHICS_2D, gr2 );
        exporter.setParameter(JRGraphics2DExporterParameter.PAGE_INDEX, new Integer(index));
        try{
          exporter.exportReport();
        } catch(Exception e) {
          export = false;
          continue;
        }
        index++;

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      boolean export = true;
      int index = 0;
      while(export==true){
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D gr2 = image.createGraphics();
        JRExporter exporter = new JRGraphics2DExporter();
        exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
        exporter.setParameter(JRGraphics2DExporterParameter.GRAPHICS_2D, gr2 );
        exporter.setParameter(JRGraphics2DExporterParameter.PAGE_INDEX, new Integer(index));
        try{
          exporter.exportReport();
        } catch(Exception e) {
          export = false;
          continue;
        }
        index++;

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     * Exports a rendered {@link JasperPrint} to a {@link BufferedImage}.
     */
    public static BufferedImage exportReportToImage(JasperPrint jasperPrint, Integer page) throws Exception {
        BufferedImage pageImage = new BufferedImage(jasperPrint.getPageWidth(), jasperPrint.getPageHeight(), BufferedImage.TYPE_INT_RGB);


        JRGraphics2DExporter exporter = new JRGraphics2DExporter();
        exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
        exporter.setParameter(JRGraphics2DExporterParameter.GRAPHICS_2D, pageImage.getGraphics());
        exporter.setParameter(JRExporterParameter.PAGE_INDEX, page);
        exporter.exportReport();


        return pageImage;
    }

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        BufferedImage pageImage = new BufferedImage(pageWidthOnImage, numPages * pageHeightOnImage, this.imageType);


        Graphics2D graphics2D = pageImage.createGraphics();
        graphics2D.scale(dpiRatio, dpiRatio);
        try {
            JRGraphics2DExporter exporter = new JRGraphics2DExporter();
            exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
            exporter.setParameter(JRGraphics2DExporterParameter.GRAPHICS_2D, graphics2D);
            for (int pageIndex = 0; pageIndex < numPages; pageIndex++) {
                exporter.setParameter(JRExporterParameter.PAGE_INDEX, pageIndex);


                exporter.exportReport();
                graphics2D.setColor(Color.black);
                graphics2D.drawLine(0, pageHeightOnImage, pageWidthOnImage, pageHeightOnImage);
                graphics2D.translate(0, pageHeightOnImage);
            }
        } finally {

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  @Override
  public final JRAbstractExporter newExporter()
  {
    try
    {
      return new JRGraphics2DExporter();
    }
    catch (JRException e)
    {
      throw new RuntimeException(e);
    }

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