/*
* Copyright (C) 2014 Camptocamp
*
* This file is part of MapFish Print
*
* MapFish Print is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MapFish Print 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MapFish Print. If not, see <http://www.gnu.org/licenses/>.
*/
package org.mapfish.print.output;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRExporterParameter;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.export.JRGraphics2DExporter;
import net.sf.jasperreports.engine.export.JRGraphics2DExporterParameter;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import javax.imageio.ImageIO;
/**
* An PDF output format that uses Jasper reports to generate the result.
*
* @author Jesse
* @author sbrunner
*/
public final class JasperReportImageOutputFormat extends AbstractJasperReportOutputFormat implements OutputFormat {
private int imageType = BufferedImage.TYPE_INT_ARGB;
private String fileSuffix;
@Override
public String getContentType() {
return "image/" + this.fileSuffix;
}
public void setFileSuffix(final String fileSuffix) {
this.fileSuffix = fileSuffix;
}
@Override
public String getFileSuffix() {
return this.fileSuffix;
}
@Override
protected void doExport(final OutputStream outputStream, final Print print) throws JRException, IOException {
JasperPrint jasperPrint = print.print;
final int numPages = jasperPrint.getPages().size();
final double dpiRatio = print.dpi / print.requestorDpi;
final int pageHeightOnImage = (int) ((jasperPrint.getPageHeight() + 1) * dpiRatio);
final int pageWidthOnImage = (int) ((jasperPrint.getPageWidth() + 1) * dpiRatio);
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 {
graphics2D.dispose();
}
ImageIO.write(pageImage, getFileSuffix(), outputStream);
}
/**
* One of {@link java.awt.image.BufferedImage} TYPE_ values.
*
* @param imageType the buffered image type to create.
*/
public void setImageType(final int imageType) {
this.imageType = imageType;
}
}