PrintItemBarcode.java

//    uniCenta oPOS  - Touch Friendly Point Of Sale
//    Copyright (c) 2009-2013 uniCenta & previous Openbravo POS works
//    http://www.unicenta.net/unicentaopos
//
//    This file is part of uniCenta oPOS
//
//    uniCenta oPOS 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.
//
//   uniCenta oPOS 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 uniCenta oPOS.  If not, see <http://www.gnu.org/licenses/>.

package com.openbravo.pos.printer.ticket;

import com.openbravo.pos.printer.DevicePrinter;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import org.krysalis.barcode4j.BarcodeDimension;
import org.krysalis.barcode4j.HumanReadablePlacement;
import org.krysalis.barcode4j.impl.AbstractBarcodeBean;
import org.krysalis.barcode4j.impl.code128.Code128Bean;
import org.krysalis.barcode4j.impl.upcean.EAN13Bean;
import org.krysalis.barcode4j.output.java2d.Java2DCanvasProvider;

public class PrintItemBarcode implements PrintItem {

    protected AbstractBarcodeBean m_barcode;
    protected String m_sCode;
    protected int m_iWidth;
    protected int m_iHeight;
    protected double scale;

    /** Creates a new instance of PrinterItemBarcode */
    public PrintItemBarcode(String type, String position, String code, double scale) {

        m_sCode = code;
        this.scale = scale;

        if (DevicePrinter.BARCODE_CODE128.equals(type)) {
            m_barcode = new Code128Bean();
        } else {
            m_barcode = new EAN13Bean();
        }

        if (m_barcode != null) {
            m_barcode.setModuleWidth(1.0);
            m_barcode.setBarHeight(40.0);
            m_barcode.setFontSize(10.0);
            m_barcode.setQuietZone(10.0);
            m_barcode.doQuietZone(true);
            if (DevicePrinter.POSITION_NONE.equals(position)) {
                m_barcode.setMsgPosition(HumanReadablePlacement.HRP_NONE);
            } else {
                m_barcode.setMsgPosition(HumanReadablePlacement.HRP_BOTTOM);
            }
            BarcodeDimension dim = m_barcode.calcDimensions(m_sCode);
            m_iWidth = (int) dim.getWidth(0);
            m_iHeight = (int) dim.getHeight(0);
        }
    }

    @Override
    public void draw(Graphics2D g, int x, int y, int width) {

        if (m_barcode != null) {
            Graphics2D g2d = (Graphics2D) g;

            AffineTransform oldt = g2d.getTransform();
        
            g2d.translate(x - 10 + (width - (int)(m_iWidth * scale)) / 2, y + 10);
            g2d.scale(scale, scale);

            try {
                m_barcode.generateBarcode(new Java2DCanvasProvider(g2d, 0), m_sCode);
            } catch (IllegalArgumentException e) {
                g2d.drawRect(0, 0, m_iWidth, m_iHeight);
                g2d.drawLine(0, 0, m_iWidth, m_iHeight);
                g2d.drawLine(m_iWidth, 0, 0, m_iHeight);
            }

            g2d.setTransform(oldt);
        }
    }

    @Override
    public int getHeight() {
        return (int) (m_iHeight * scale) + 20;
    }
}