org.locationtech.udig.project.ui.wizard.export.image.Image2Pdf.java Source code

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Here is the source code for org.locationtech.udig.project.ui.wizard.export.image.Image2Pdf.java

Source

/*
 *    uDig - User Friendly Desktop Internet GIS client
 *    http://udig.refractions.net
 *    (C) 2012, Refractions Research Inc.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
 * License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
 */
package org.locationtech.udig.project.ui.wizard.export.image;

import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.PdfWriter;

/**
 * @author Andrea Antonello - www.hydrologis.com
 */
public class Image2Pdf {

    /**
     * writes a buffered image to pdf at a given resolution
     *
     *
     * @param image
     *            the image to write
     * @param pdfPath
     *            the path to the pdf document to create
     * @param paper
     *            the paper type
     * @param widthBorder
     *            border in pixels to use on the x-axis
     * @param heightBorder
     *            border in pixels to use on the y-axis
     * @param lanscape
     *            true if the document should be in landscape mode
     * @param dpi the output dpi
     */
    public static void write(BufferedImage image, String pdfPath, Paper paper, int widthBorder, int heightBorder,
            boolean landscape, int dpi) {
        Dimension printPageSize = null;
        printPageSize = new Dimension(paper.getPixelWidth(landscape, dpi), paper.getPixelHeight(landscape, dpi));

        // step 1: creation of a document-object
        Document document = new Document(new Rectangle(printPageSize.width, printPageSize.height));

        try {

            // step 2:
            // we create a writer that listens to the document
            // and directs a PDF-stream to a file
            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(pdfPath));

            // step 3: we open the document
            document.open();

            // step 4: we create a template and a Graphics2D object that
            // corresponds with it
            int w = printPageSize.width;
            int h = printPageSize.height;
            PdfContentByte cb = writer.getDirectContent();
            PdfTemplate tp = cb.createTemplate(w, h);
            Graphics2D g2 = tp.createGraphics(w, h);
            tp.setWidth(w);
            tp.setHeight(h);

            g2.drawImage(image, null, widthBorder, heightBorder);

            g2.dispose();
            cb.addTemplate(tp, 0, 0);

        } catch (DocumentException de) {
            System.err.println(de.getMessage());
        } catch (IOException ioe) {
            System.err.println(ioe.getMessage());
        }

        // step 5: we close the document
        document.close();
    }

    public static void main(String[] args) {

        String path = "/home/moovida/Desktop/screens/austrocontrol_2.png"; //$NON-NLS-1$
        BufferedImage b = null;
        try {
            b = ImageIO.read(new File(path));
        } catch (IOException e) {
            e.printStackTrace();
        }
        write(b, path + ".pdf", Paper.A1, 10, 10, false, 100); //$NON-NLS-1$
        System.out.println("finished"); //$NON-NLS-1$
    }
}