org.adempiere.pdf.Document.java Source code

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Here is the source code for org.adempiere.pdf.Document.java

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/******************************************************************************
 * Product: Adempiere ERP & CRM Smart Business Solution                       *
 * Copyright (C) 1999-2006 Adempiere, Inc. All Rights Reserved.               *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. 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, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 *****************************************************************************/
package org.adempiere.pdf;

import java.awt.Graphics2D;
import java.awt.print.PageFormat;
import java.awt.print.Pageable;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;

import org.adempiere.pdf.viewer.PDFViewerBean;
import org.compiere.model.MSysConfig;

import com.lowagie.text.FontFactory;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.DefaultFontMapper;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.PdfWriter;

/**
 * Generate PDF document using iText
 * @author Low Heng Sin
 *
 */
public class Document {

    static {
        FontFactory.registerDirectories();
    }

    private final static String PDF_FONT_DIR = "PDF_FONT_DIR";

    private static void writePDF(Pageable pageable, OutputStream output) {
        try {
            final PageFormat pf = pageable.getPageFormat(0);

            final com.lowagie.text.Document document = new com.lowagie.text.Document(
                    new Rectangle((int) pf.getWidth(), (int) pf.getHeight()));
            final PdfWriter writer = PdfWriter.getInstance(document, output);
            writer.setPdfVersion(PdfWriter.VERSION_1_2);
            document.open();
            final DefaultFontMapper mapper = new DefaultFontMapper();

            //Elaine 2009/02/17 - load additional font from directory set in PDF_FONT_DIR of System Configurator 
            String pdfFontDir = MSysConfig.getValue(PDF_FONT_DIR, "");
            if (pdfFontDir != null && pdfFontDir.trim().length() > 0) {
                pdfFontDir = pdfFontDir.trim();
                File dir = new File(pdfFontDir);
                if (dir.exists() && dir.isDirectory())
                    mapper.insertDirectory(pdfFontDir);
            }
            //

            final float w = (float) pf.getWidth();
            final float h = (float) pf.getHeight();
            final PdfContentByte cb = writer.getDirectContent();
            for (int page = 0; page < pageable.getNumberOfPages(); page++) {
                if (page != 0) {
                    document.newPage();
                }

                final PdfTemplate tp = cb.createTemplate(w, h);
                final Graphics2D g2 = tp.createGraphics(w, h, mapper);
                tp.setWidth(w);
                tp.setHeight(h);
                pageable.getPrintable(page).print(g2, pf, page);
                g2.dispose();
                cb.addTemplate(tp, 0, 0);
            }
            document.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static File getPDFAsFile(String filename, Pageable pageable) {
        final File result = new File(filename);

        try {
            writePDF(pageable, new FileOutputStream(result));
        } catch (Exception e) {
            e.printStackTrace();
        }

        return result;
    }

    public static byte[] getPDFAsArray(Pageable pageable) {
        try {
            ByteArrayOutputStream output = new ByteArrayOutputStream(10240);
            writePDF(pageable, output);
            return output.toByteArray();
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    public static PDFViewerBean getViewer() {
        return new PDFViewerBean();
    }

    public static boolean isValid(Pageable layout) {
        return true;
    }

    public static boolean isLicensed() {
        return true;
    }
}