private void CalculateSecondSet(char[] set)
{
var vals = new[] { "1110010", "1100110", "1101100", "1000010", "1011100", "1001110", "1010000", "1000100", "1001000", "1110100" };
for (var i = 7; i < set.Length; i++)
{
BinaryText.Append(vals[int.Parse(set[i].ToString())]);
}
}
private void CalculateFirstSet(char[] set)
{
var main = new[] { "0001101", "0011001", "0010011", "0111101", "0100011", "0110001", "0101111", "0111011", "0110111", "0001011" };
var alt = new[] { "0100111", "0110011", "0011011", "0100001", "0011101", "0111001", "0000101", "0010001", "0001001", "0010111" };
for (var i = 1; i <= 6; i++)
{
var index = int.Parse(set[i].ToString());
BinaryText.Append(i == 1 || i == 4 || i == 6 ? main[index] : alt[index]);
}
}
protected override void RenderBarcode()
{
var isbn = Code.ToArray();
BinaryText.Append("101");
CalculateFirstSet(isbn);
BinaryText.Append("01010");
CalculateSecondSet(isbn);
BinaryText.Append("101");
using var bmp = new Bitmap(135, 105, PixelFormat.Format32bppRgb);
using (var pen = new Pen(Color.White)) using (var g = Graphics.FromImage(bmp)) {
g.Clear(Color.White);
var r = new Rectangle(10, 72, 10, 15);
g.SmoothingMode = SmoothingMode.AntiAlias;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.PixelOffsetMode = PixelOffsetMode.HighQuality;
g.DrawString("9", new Font("Courier", 8), Brushes.Black, r);
r = new Rectangle(26, 72, 42, 15);
g.DrawString(Code.Substring(1, 6), new Font("Courier", 8), Brushes.Black, r);
r = new Rectangle(72, 72, 42, 15);
g.DrawString(Code.Substring(7, 6), new Font("Courier", 8), Brushes.Black, r);
g.Flush();
var binary = BinaryText.ToString().ToCharArray();
var delim = new int[] { 0, 1, 2, 45, 46, 47, 48, 49, 92, 93, 94 };
for (var i = 0; i < binary.Length; i++)
{
pen.Color = binary[i] == '1' ? Color.Black : Color.White;
if (delim.Contains(i))
{
g.DrawLine(pen, LineBuffer, 20, LineBuffer, 85);
}
else
{
g.DrawLine(pen, LineBuffer, 20, LineBuffer, 70);
}
LineBuffer++;
}
}
bmp.Save(ms, ImageFormat.Png);
}