iTextSharp.text.pdf.Barcode128.PlaceBarcode C# (CSharp) Method

        public override Rectangle PlaceBarcode(PdfContentByte cb, Color barColor, Color textColor) {
            string fullCode;
            if (codeType == CODE128_RAW) {
                int idx = code.IndexOf('\uffff');
                if (idx < 0)
                    fullCode = "";
                else
                    fullCode = code.Substring(idx + 1);
            }
            else if (codeType == CODE128_UCC)
                fullCode = GetHumanReadableUCCEAN(code);
            else
                fullCode = RemoveFNC1(code);
            float fontX = 0;
            if (font != null) {
                fontX = font.GetWidthPoint(fullCode = altText != null ? altText : fullCode, size);
            }
            string bCode;
            if (codeType == CODE128_RAW) {
                int idx = code.IndexOf('\uffff');
                if (idx >= 0)
                    bCode = code.Substring(0, idx);
                else
                    bCode = code;
            }
            else {
                bCode = GetRawText(code, codeType == CODE128_UCC);
            }
            int len = bCode.Length;
            float fullWidth = (len + 2) * 11 * x + 2 * x;
            float barStartX = 0;
            float textStartX = 0;
            switch (textAlignment) {
                case Element.ALIGN_LEFT:
                    break;
                case Element.ALIGN_RIGHT:
                    if (fontX > fullWidth)
                        barStartX = fontX - fullWidth;
                    else
                        textStartX = fullWidth - fontX;
                    break;
                default:
                    if (fontX > fullWidth)
                        barStartX = (fontX - fullWidth) / 2;
                    else
                        textStartX = (fullWidth - fontX) / 2;
                    break;
            }
            float barStartY = 0;
            float textStartY = 0;
            if (font != null) {
                if (baseline <= 0)
                    textStartY = barHeight - baseline;
                else {
                    textStartY = -font.GetFontDescriptor(BaseFont.DESCENT, size);
                    barStartY = textStartY + baseline;
                }
            }
            byte[] bars = GetBarsCode128Raw(bCode);
            bool print = true;
            if (barColor != null)
                cb.SetColorFill(barColor);
            for (int k = 0; k < bars.Length; ++k) {
                float w = bars[k] * x;
                if (print)
                    cb.Rectangle(barStartX, barStartY, w - inkSpreading, barHeight);
                print = !print;
                barStartX += w;
            }
            cb.Fill();
            if (font != null) {
                if (textColor != null)
                    cb.SetColorFill(textColor);
                cb.BeginText();
                cb.SetFontAndSize(font, size);
                cb.SetTextMatrix(textStartX, textStartY);
                cb.ShowText(fullCode);
                cb.EndText();
            }
            return this.BarcodeSize;
        }