com.vectorprint.report.itext.style.stylers.QR.java Source code

Introduction

Here is the source code for com.vectorprint.report.itext.style.stylers.QR.java

Source

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.vectorprint.report.itext.style.stylers;

/*
 * #%L
 * VectorPrintReport4.0
 * %%
 * Copyright (C) 2012 - 2013 VectorPrint
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
import com.itextpdf.text.BadElementException;
import com.itextpdf.text.Document;
import com.itextpdf.text.Image;
import com.itextpdf.text.pdf.BarcodeQRCode;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;
import com.vectorprint.IOHelper;
import com.vectorprint.VectorPrintException;
import com.vectorprint.configuration.EnhancedMap;
import com.vectorprint.configuration.parameters.IntParameter;
import com.vectorprint.report.itext.ImageLoader;
import com.vectorprint.report.itext.LayerManager;
import static com.vectorprint.report.itext.style.stylers.DocumentSettings.HEIGHT;
import static com.vectorprint.report.itext.style.stylers.DocumentSettings.WIDTH;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

/**
 * printing QR as images
 *
 * @author Eduard Drenth at VectorPrint.nl
 */
public class QR extends com.vectorprint.report.itext.style.stylers.Image<String> {

    public QR() {
        super();
        initParams();
    }

    private void initParams() {
        addParameter(new IntParameter(WIDTH, "width of the QR code").setDefault(1), QR.class);
        addParameter(new IntParameter(HEIGHT, "height of the QR code").setDefault(1), QR.class);
    }

    public QR(ImageLoader imageLoader, LayerManager layerManager, Document document, PdfWriter writer,
            EnhancedMap settings) throws VectorPrintException {
        super(imageLoader, layerManager, document, writer, settings);
        initParams();
    }

    @Override
    protected Image createImage(PdfContentByte canvas, String data, float opacity)
            throws VectorPrintException, BadElementException {
        Image img = null;
        try {
            if (data == null && getData() == null) {
                ByteArrayOutputStream out = new ByteArrayOutputStream(100);
                IOHelper.load(getUrl().openStream(), out);
                img = new BarcodeQRCode(out.toString(), getValue(WIDTH, Integer.class),
                        getValue(HEIGHT, Integer.class), null).getImage();
            } else {
                img = new BarcodeQRCode(data == null ? getData() : data, getValue(WIDTH, Integer.class),
                        getValue(HEIGHT, Integer.class), null).getImage();
            }
        } catch (IOException ex) {
            throw new VectorPrintException(ex);
        }
        applySettings(img);
        return img;
    }

    @Override
    public String getHelp() {
        return "draw a QR code." + " " + super.getHelp();
    }

}