iTextSharp.text.pdf.BarcodePostnet.CreateDrawingImage C# (CSharp) Метод

        public override System.Drawing.Image CreateDrawingImage(System.Drawing.Color foreground, System.Drawing.Color background) {
            int barWidth = (int)x;
            if (barWidth <= 0)
                barWidth = 1;
            int barDistance = (int)n;
            if (barDistance <= barWidth)
                barDistance = barWidth + 1;
            int barShort = (int)size;
            if (barShort <= 0)
                barShort = 1;
            int barTall = (int)barHeight;
            if (barTall <= barShort)
                barTall = barShort + 1;
            byte[] bars = GetBarsPostnet(code);
            int width = bars.Length * barDistance;
            byte flip = 1;
            if (codeType == PLANET) {
                flip = 0;
                bars[0] = 0;
                bars[bars.Length - 1] = 0;
            }
            System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(width, barTall);
            int seg1 = barTall - barShort;
            for (int i = 0; i < seg1; ++i) {
                int idx = 0;
                for (int k = 0; k < bars.Length; ++k) {
                    bool dot = (bars[k] == flip);
                    for (int j = 0; j < barDistance; ++j) {
                        bmp.SetPixel(idx++, i, (dot && j < barWidth) ? foreground : background);
                    }
                }
            }
            for (int i = seg1; i < barTall; ++i) {
                int idx = 0;
                for (int k = 0; k < bars.Length; ++k) {
                    for (int j = 0; j < barDistance; ++j) {
                        bmp.SetPixel(idx++, i, (j < barWidth) ? foreground : background);
                    }
                }
            }
            return bmp;
        }
    }