PDFExporter.java

/*
 * funCKit - functional Circuit Kit
 * Copyright (C) 2013  Lukas Elsner <open@mindrunner.de>
 * Copyright (C) 2013  Peter Dahlberg <catdog2@tuxzone.org>
 * Copyright (C) 2013  Julian Stier <mail@julian-stier.de>
 * Copyright (C) 2013  Sebastian Vetter <mail@b4sti.eu>
 * Copyright (C) 2013  Thomas Poxrucker <poxrucker_t@web.de>
 * Copyright (C) 2013  Alexander Treml <alex.treml@directbox.com>
 * 
 * This program 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.
 * 
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.sep2011.funckit.converter;

import de.sep2011.funckit.model.sessionmodel.Settings;
import org.apache.batik.svggen.SVGGraphics2DIOException;
import org.apache.batik.transcoder.SVGAbstractTranscoder;
import org.apache.batik.transcoder.Transcoder;
import org.apache.batik.transcoder.TranscoderException;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.fop.svg.PDFTranscoder;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;

import static de.sep2011.funckit.util.Log.gl;

/**
 * This class contains the methods to export into PDF documents.
 */
public class PDFExporter extends DocumentImageExporter {

    /**
     * Creates a new PDFExporter.
     * 
     * @param settings
     *            The current settings object
     */
    public PDFExporter(Settings settings) {
        super(settings);
    }

    @Override
    protected void saveToStream(OutputStream outputStream) {
        Transcoder pdfTranscoder = new PDFTranscoder();


        pdfTranscoder.addTranscodingHint(SVGAbstractTranscoder.KEY_WIDTH, (float) this.width);
        pdfTranscoder.addTranscodingHint(SVGAbstractTranscoder.KEY_HEIGHT, (float) this.height);


        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        Writer out = new OutputStreamWriter(baos);

        try {
            this.graphicsContext.stream(out, true);
        } catch (SVGGraphics2DIOException e) {
            gl().error(e);
        }

        TranscoderInput ti = new TranscoderInput(new ByteArrayInputStream(baos.toByteArray()));
        TranscoderOutput to = new TranscoderOutput(outputStream);

        try {
            pdfTranscoder.transcode(ti, to);
        } catch (TranscoderException e) {
            gl().error(e);
        }
    }
}