private int[] CreateAsciiForDigit(string AsciiData)
{
Int16 val1, val2;
//if (AsciiData.Length % 2 != 2) AsciiData = "0" + AsciiData;
System.Collections.ArrayList outData = new System.Collections.ArrayList();
char[] StringArray = AsciiData.ToCharArray();
for (int i = 0; i < StringArray.Length; i++)
{
Int16.TryParse(StringArray[i++].ToString(), out val1);
try
{
Int16.TryParse(StringArray[i].ToString(), out val2);
}
catch (IndexOutOfRangeException)
{
val2 = 0;
CodeSet temp = CodeSet.CodeB;//Code128Code.CodesetForChar(val1);
val2 = (short)Code128Code.CodeValueForChar(val1, CodeSet.CodeC);
outData.Add((int)Code128Code.ShiftCodeForCodeSet(temp));
outData.Add((int)val2);;
return(outData.ToArray(typeof(int)) as int[]);
}
val1 *= 10;
val1 += val2;
outData.Add((int)val1);
}
return(outData.ToArray(typeof(int)) as int[]);
}
/// <summary>
/// Determines the best starting code set based on the the first two
/// characters of the string to be encoded
/// </summary>
/// <param name="csa1">First character of input string</param>
/// <param name="csa2">Second character of input string</param>
/// <returns>The codeset determined to be best to start with</returns>
private CodeSet GetBestStartSet(Code128Code.CodeSetAllowed csa1, Code128Code.CodeSetAllowed csa2)
{
var vote = 0;
vote += csa1 == Code128Code.CodeSetAllowed.CodeA ? 1 : 0;
vote += csa1 == Code128Code.CodeSetAllowed.CodeB ? -1 : 0;
vote += csa2 == Code128Code.CodeSetAllowed.CodeA ? 1 : 0;
vote += csa2 == Code128Code.CodeSetAllowed.CodeB ? -1 : 0;
return vote > 0 ? CodeSet.CodeA : CodeSet.CodeB; // ties go to codeB due to my own prejudices
}
/// <summary>
/// Transform the string into integers representing the Code128 codes
/// necessary to represent it
/// </summary>
/// <param name="AsciiData">String to be encoded</param>
/// <returns>Code128 representation</returns>
private int[] StringToCode128(string AsciiData)
{
byte[] asciiBytes = null;
System.Collections.ArrayList codes = new System.Collections.ArrayList();
// turn the string into ascii byte data
Int64 temp;
if (Int64.TryParse(AsciiData, out temp))
{
codes.Add(105);
codes.AddRange(CreateAsciiForDigit(AsciiData));
}
else
{
asciiBytes = Encoding.ASCII.GetBytes(AsciiData);
// decide which codeset to start with
Code128Code.CodeSetAllowed csa1 = asciiBytes.Length > 0 ? Code128Code.CodesetAllowedForChar(asciiBytes[0]) : Code128Code.CodeSetAllowed.CodeA;
Code128Code.CodeSetAllowed csa2 = asciiBytes.Length > 0 ? Code128Code.CodesetAllowedForChar(asciiBytes[1]) : Code128Code.CodeSetAllowed.CodeA;
CodeSet currcs = GetBestStartSet(csa1, csa2);
// set up the beginning of the barcode
codes = new System.Collections.ArrayList(asciiBytes.Length + 3); // assume no codeset changes, account for start, checksum, and stop
codes.Add(Code128Code.StartCodeForCodeSet(currcs));
//codes.Add(104);
// add the codes for each character in the string
for (int i = 0; i < asciiBytes.Length; i++)
{
int thischar = asciiBytes[i];
int nextchar = asciiBytes.Length > (i + 1) ? asciiBytes[i + 1] : -1;
codes.AddRange(Code128Code.CodesForChar(thischar, nextchar, ref currcs, ref i));
}
}
// calculate the check digit
int checksum = (int)(codes[0]);
for (int i = 1; i < codes.Count; i++)
{
checksum += i * (int)(codes[i]);
}
codes.Add(checksum % 103);
codes.Add(Code128Code.StopCode());
int[] result = codes.ToArray(typeof(int)) as int[];
return(result);
}
/// <summary>
/// Transform the string into integers representing the Code128 codes
/// necessary to represent it
/// </summary>
/// <param name="asciiData">String to be encoded</param>
/// <returns>Code128 representation</returns>
private int[] StringToCode128(string asciiData)
{
// turn the string into ascii byte data
var asciiBytes = Encoding.ASCII.GetBytes(asciiData);
// decide which codeset to start with
var csa1 = asciiBytes.Length > 0
? Code128Code.CodesetAllowedForChar(asciiBytes[0])
: Code128Code.CodeSetAllowed.CodeAorB;
var csa2 = asciiBytes.Length > 0
? Code128Code.CodesetAllowedForChar(asciiBytes[1])
: Code128Code.CodeSetAllowed.CodeAorB;
var currentCodeSet = this.GetBestStartSet(csa1, csa2);
// set up the beginning of the barcode
// assume no codeset changes, account for start, checksum, and stop
var codes = new ArrayList(asciiBytes.Length + 3)
{
Code128Code.StartCodeForCodeSet(currentCodeSet)
};
// add the codes for each character in the string
for (var i = 0; i < asciiBytes.Length; i++)
{
int thischar = asciiBytes[i];
var nextchar = asciiBytes.Length > i + 1 ? asciiBytes[i + 1] : -1;
codes.AddRange(Code128Code.CodesForChar(thischar, nextchar, ref currentCodeSet));
}
// calculate the check digit
var checksum = (int)codes[0];
for (var i = 1; i < codes.Count; i++)
{
checksum += i * (int)codes[i];
}
codes.Add(checksum % 103);
codes.Add(Code128Code.StopCode());
var result = codes.ToArray(typeof(int)) as int[];
return(result);
}
/// <summary>
/// Determines the best starting code set based on the the first two
/// characters of the string to be encoded
/// </summary>
/// <param name="csa1">First character of input string</param>
/// <param name="csa2">Second character of input string</param>
/// <returns>The codeset determined to be best to start with</returns>
private CodeSet GetBestStartSet( Code128Code.CodeSetAllowed csa1, Code128Code.CodeSetAllowed csa2 )
{
int vote = 0;
vote += (csa1==Code128Code.CodeSetAllowed.CodeA) ? 1 : 0;
vote += (csa1==Code128Code.CodeSetAllowed.CodeB) ? -1 : 0;
vote += (csa2==Code128Code.CodeSetAllowed.CodeA) ? 1 : 0;
vote += (csa2==Code128Code.CodeSetAllowed.CodeB) ? -1 : 0;
return (vote>0) ? CodeSet.CodeA : CodeSet.CodeB; // ties go to codeB due to my own prejudices
}
