Com.Operaciones.java Source code

Introduction

Here is the source code for Com.Operaciones.java

Source

/*
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 */

package Com;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.oned.Code128Writer;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import java.util.Date;
import org.jfree.chart.ChartUtilities;

/**
 *
 * @author Toditos
 */
public class Operaciones {
    private static final int BLACK = 0xFF000000;
    private static final int WHITE = 0xFFFFFFFF;

    public static double Redondear(double NDecimal, int decimales) {
        return Math.round(NDecimal * Math.pow(10, decimales)) / Math.pow(10, decimales);
    }

    //    public static String getCodigoControl(boolean tipo,int idLinea)
    //    {
    //        Calendar c = new GregorianCalendar();
    //        String dia="";
    //        String mes="";
    //        String linea="";
    //        
    //        if(idLinea>99) linea = ""+idLinea;
    //        else if(idLinea<100 &&idLinea>9) linea = "0"+idLinea;
    //        else linea="00"+idLinea;
    //        
    //        if(c.get(Calendar.DATE)>9) dia = ""+c.get(Calendar.DATE);
    //        else dia="0"+c.get(Calendar.DATE);
    //        if(c.get(Calendar.MONTH)>9) mes = ""+c.get(Calendar.MONTH);
    //        else mes="0"+c.get(Calendar.MONTH);
    //        
    //        String anio = ""+c.get(Calendar.YEAR);
    //        String hora=""+c.get(Calendar.HOUR);
    //        String min=""+c.get(Calendar.MINUTE);
    //        String seg=""+c.get(Calendar.SECOND);
    //        
    //        String mili=""+c.get(Calendar.MILLISECOND);        
    //       
    //        String codigo=dia+mes+anio.substring(2)+c.get(Calendar.HOUR)+min+seg+linea;
    //         if(!tipo)
    //             codigo=dia+mes+anio.substring(2)+hora+min+seg+mili;
    //        
    //        return codigo;
    //    }

    public static String getCodigoControl(boolean tipo, int idLinea) {
        String linea = "";
        if (idLinea > 9)
            linea = "" + idLinea;
        else
            linea = "0" + idLinea;

        String codigo = "" + new Date().getTime();

        if (tipo)
            codigo = codigo + linea;

        return codigo;
    }

    public static InputStream generateBarras(String text, int h, int w) throws Exception {

        Charset charset = Charset.forName("ISO-8859-1");
        CharsetEncoder encoder = charset.newEncoder();
        byte[] b = null;
        ByteBuffer bbuf = encoder.encode(CharBuffer.wrap(text));
        b = bbuf.array();
        String data = new String(b, "ISO-8859-1");
        // get a byte matrix for the data

        BitMatrix matrix = null;

        matrix = new Code128Writer().encode(data, BarcodeFormat.CODE_128, w, h, null);

        int height = matrix.getHeight();
        int width = matrix.getWidth();
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                image.setRGB(x, y, matrix.get(x, y) ? BLACK : WHITE);
            }
        }

        byte[] imgByte = ChartUtilities.encodeAsPNG(image);

        InputStream myInputStream = new ByteArrayInputStream(imgByte);

        return myInputStream;

    }

}