3; // end guard
/// <summary>
/// </summary>
/// <returns>
/// a byte array of horizontal pixels (false = white, true = black)
/// </returns>
public override bool[] Encode(String contents)
{
int length = contents.Length;
switch (length)
{
case 7:
// No check digit present, calculate it and add it
var check = UPCEANReader.GetStandardUPCEANChecksum(contents);
if (check == null)
{
throw new ArgumentException("Checksum can't be calculated");
}
contents += check.Value;
break;
case 8:
try
{
if (!UPCEANReader.CheckStandardUPCEANChecksum(contents))
{
throw new ArgumentException("Contents do not pass checksum");
}
}
catch (FormatException ignored)
{
throw new ArgumentException("Illegal contents", ignored);
}
break;
default:
throw new ArgumentException("Requested contents should be 7 (without checksum digit) or 8 digits long, but got " + contents.Length);
}
var result = new bool[CODE_WIDTH];
int pos = 0;
pos += AppendPattern(result, pos, UPCEANReader.START_END_PATTERN, true);
for (int i = 0; i <= 3; i++)
{
int digit = Int32.Parse(contents.Substring(i, 1));
pos += AppendPattern(result, pos, UPCEANReader.L_PATTERNS[digit], false);
}
pos += AppendPattern(result, pos, UPCEANReader.MIDDLE_PATTERN, false);
for (int i = 4; i <= 7; i++)
{
int digit = Int32.Parse(contents.Substring(i, 1));
pos += AppendPattern(result, pos, UPCEANReader.L_PATTERNS[digit], true);
}
AppendPattern(result, pos, UPCEANReader.START_END_PATTERN, true);
return(result);
}
3; // end guard
/// <summary>
/// Encode the contents to byte array expression of one-dimensional barcode.
/// Start code and end code should be included in result, and side margins should not be included.
/// <returns>a {@code boolean[]} of horizontal pixels (false = white, true = black)</returns>
/// </summary>
/// <param name="contents"></param>
/// <returns></returns>
public override bool[] Encode(String contents)
{
int length = contents.Length;
switch (length)
{
case 12:
// No check digit present, calculate it and add it
var check = UPCEANReader.GetStandardUPCEANChecksum(contents);
if (check == null)
{
throw new ArgumentException("Checksum can't be calculated");
}
contents += check.Value;
break;
case 13:
try
{
if (!UPCEANReader.CheckStandardUPCEANChecksum(contents))
{
throw new ArgumentException("Contents do not pass checksum");
}
}
catch (FormatException ignored)
{
throw new ArgumentException("Illegal contents", ignored);
}
break;
default:
throw new ArgumentException("Requested contents should be 12 (without checksum digit) or 13 digits long, but got " + contents.Length);
}
int firstDigit = Int32.Parse(contents.Substring(0, 1));
int parities = EAN13Reader.FIRST_DIGIT_ENCODINGS[firstDigit];
var result = new bool[CODE_WIDTH];
int pos = 0;
pos += AppendPattern(result, pos, UPCEANReader.START_END_PATTERN, true);
// See EAN13Reader for a description of how the first digit & left bars are encoded
for (int i = 1; i <= 6; i++)
{
int digit = Int32.Parse(contents.Substring(i, 1));
if ((parities >> (6 - i) & 1) == 1)
{
digit += 10;
}
pos += AppendPattern(result, pos, UPCEANReader.L_AND_G_PATTERNS[digit], false);
}
pos += AppendPattern(result, pos, UPCEANReader.MIDDLE_PATTERN, false);
for (int i = 7; i <= 12; i++)
{
int digit = Int32.Parse(contents.Substring(i, 1));
pos += AppendPattern(result, pos, UPCEANReader.L_PATTERNS[digit], true);
}
AppendPattern(result, pos, UPCEANReader.START_END_PATTERN, true);
return(result);
}
