Exemplo n.º 1
0
        private string Code_128()
        {
            int         achecksum = 0;
            string      startcode = "";
            string      aresult   = "";
            int         i         = 0;
            string      cadc;
            int         idx;
            BarcodeType btyp;
            string      text = CurrentText;

            while (i < text.Length)
            {
                btyp = BarType;
                if (btyp == BarcodeType.Code128)
                {
                    btyp = Code128.FindNewType(text, i);
                }
                switch (btyp)
                {
                case BarcodeType.Code128A:
                    achecksum = 103;
                    startcode = Code128.StartA;
                    break;

                case BarcodeType.Code128B:
                    achecksum = 104;
                    startcode = Code128.StartB;
                    break;

                case BarcodeType.Code128C:
                    achecksum = 105;
                    startcode = Code128.StartC;
                    break;
                }
                // Start code
                if (i == 0)
                {
                    aresult = aresult + DoConvert(startcode);
                }
                // Look for EAN control
                if (text[i] == (char)0xBF)
                {
                    aresult   = aresult + DoConvert("411131");
                    achecksum = achecksum + 102 * (i + 1);
                    i++;
                    if (i >= text.Length)
                    {
                        break;
                    }
                }
                switch (btyp)
                {
                case BarcodeType.Code128A:
                case BarcodeType.Code128B:
                    while (i < text.Length)
                    {
                        idx = Code128.FindCodeAB(btyp, text[i]);
                        if (idx < 0)
                        {
                            idx = Code128.FindCodeAB(btyp, ' ');
                        }
                        aresult   = aresult + DoConvert(Code128.table[idx].data);
                        achecksum = achecksum + idx * (i + 1);
                        i++;
                        // Look for EAN control
                        if (i < text.Length)
                        {
                            if (text[i] == (char)0xBF)
                            {
                                aresult   = aresult + DoConvert("411131");
                                achecksum = achecksum + 102 * (i + 1);
                                i++;
                                break;
                            }
                        }
                    }
                    break;

                case BarcodeType.Code128C:
                    cadc = "";
                    while (i < text.Length)
                    {
                        cadc = cadc + text[i];
                        if (cadc.Length > 1)
                        {
                            idx = Code128.FindCodeC(cadc);
                            if (idx < 0)
                            {
                                idx = Code128.FindCodeC("00");
                            }
                            achecksum = achecksum + idx * ((i + 1) / 2);
                            aresult   = aresult + DoConvert(Code128.table[idx].data);
                            cadc      = "";
                        }
                        i++;
                        // Look for EAN control
                        if (i < text.Length)
                        {
                            if (text[i] == (char)0xBF)
                            {
                                aresult   = aresult + DoConvert("411131");
                                achecksum = achecksum + 102 * (i + 1);
                                i++;
                                break;
                            }
                        }
                    }
                    break;
                }
            }
            achecksum = achecksum % 103;
            aresult   = aresult + DoConvert(Code128.table[achecksum].data);
            aresult   = aresult + DoConvert(Code128.Stop);
            return(aresult);
        }