Yakup KALEBAŞI

// JavaScript BarCode39 v. 1.0 (c) Lutz Tautenhahn, 2005
// The author grants you a non-exclusive, royalty free, license to use,
// modify and redistribute this software.
// This software is provided "as is", without a warranty of any kind.

string Chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%";
string[] Codes = {
"111221211","211211112","112211112","212211111","111221112","211221111","112221111","111211212",
"211211211","112211211","211112112","112112112","212112111","111122112","211122111","112122111",
"111112212","211112211","112112211","111122211","211111122","112111122","212111121","111121122",
"211121121","112121121","111111222","211111221","112111221","111121221","221111112","122111112",
"222111111","121121112","221121111","122121111","121111212","221111211","122111211","121121211",
"121212111","121211121","121112121","111212121"};
string[] BarPic = { "https://www.yakupkalebasi.com/AttachFiles/b.gif", "https://www.yakupkalebasi.com/AttachFiles/w.gif" };

private string Code39(string theX, string theY, int theBarHeight, int theFontHeight, string theBarCodeText, int theBarCodeSize)
{
    StringBuilder stringBuilder = new StringBuilder();
    string position = string.Empty;
    string fontStyle = string.Empty;
    int barCodeSize = 1;

    if (theBarCodeSize > 0)
        barCodeSize = Convert.ToInt32(theBarCodeSize);

    if (barCodeSize == null)
        barCodeSize = 1;

    if (barCodeSize < 1)
        barCodeSize = 1;

    if (!string.IsNullOrWhiteSpace(theX) && !string.IsNullOrWhiteSpace(theY))
    {
        position = "position:absolute;left:" + theX + ";top:" + theY + ";";
    }

    if (theFontHeight > 4 && (theBarHeight >= 2 * theFontHeight))
    {
        fontStyle = "style=\"font-size:" + theFontHeight + "px;font-family:Verdana;\"";

        stringBuilder.Append("<div style=\"" + position + "font-size:" + theFontHeight + "px;font-family:Verdana;\">");
        stringBuilder.Append("<table noborder=\"\" cellpadding=\"0\" cellspacing=\"0\">");
        stringBuilder.Append("<tr>");
        stringBuilder.Append("<td rowspan=\"2\" valign=\"top\">" + CodePics("*", theBarHeight, barCodeSize) + "</td>");

        for (int i = 0; i < theBarCodeText.Length; i++)
            stringBuilder.Append("<td>" + CodePics(theBarCodeText.Substring(i, 1), theBarHeight - theFontHeight - 1, barCodeSize) + "</td>");

        stringBuilder.Append("<td rowspan=\"2\" valign=\"top\">" + CodePics("*", theBarHeight, barCodeSize) + "</td>");
        stringBuilder.Append("</tr>");
        stringBuilder.Append("<tr>");

        for (int i = 0; i < theBarCodeText.Length; i++)
            stringBuilder.Append("<td align=\"center\" " + fontStyle + ">" + theBarCodeText.Substring(i, 1) + "</td>");

        stringBuilder.Append("</tr>");
        stringBuilder.Append("</table>");
        stringBuilder.Append("</div>");
    }
    else
    {
        stringBuilder.Append("<div style=\"" + position + "\"><table noborder=\"0\" cellpadding=\"0\" cellspacing=\"0\">");
        stringBuilder.Append("<tr>");
        stringBuilder.Append("<td>" + CodePics("*", theBarHeight, barCodeSize) + "</td>");

        for (int i = 0; i < theBarCodeText.Length; i++)
            stringBuilder.Append("<td>" + CodePics(theBarCodeText.Substring(i, 1), theBarHeight, barCodeSize) + "</td>");

        stringBuilder.Append("<td>" + CodePics("*", theBarHeight, barCodeSize) + "</td>");
        stringBuilder.Append("</tr>");
        stringBuilder.Append("</table>");
        stringBuilder.Append("</div>");
    }

    return stringBuilder.ToString();
}

private string CodePics(string theChar, int theHeight, int theSize)
{
    string retVal = "";
    string cc = "9";
    int counter = Chars.IndexOf(theChar);

    if (counter >= 0)
        cc = Codes[counter];

    for (counter = 0; counter < cc.Length; counter++)
    {
        retVal += "<img src=\"" + BarPic[counter % 2] + "\" width=\"" + ((Convert.ToInt32(cc.Substring(counter, 1)) * (3 * theSize - theSize % 2) - theSize + theSize % 2) / 2) + "\" height=\"" + theHeight + "\">";
    }

    retVal += "<img src=\"" + BarPic[counter % 2] + "\" width=\"" + theSize + "\" height=\"" + theHeight + "\">";

    return (retVal);
}