private QREncoderMatrix(int dimension, string content, QRCorrectionLevel correctionLevel, QRMode mode, QRVersion version)
: base(dimension, dimension)
{
Content = content;
CorrectionLevel = correctionLevel;
Mode = mode;
Version = version;
}
public static QREncoderMatrix Encode(string content, QRCorrectionLevel correctionLevel)
{
string encoding = DEFAULT_ENCODING;
QRMode mode = chooseMode(content, encoding);
BitList header = new BitList();
header.AppendBits(mode.ModeSignature, 4);
BitList data = new BitList();
AppendBytes(content, mode, data);
int provisionalBitsNeeded = header.Size + mode.GetVersionCharacterCount(QRVersion.GetVersionByNumber(1)) + data.Size;
QRVersion provisionalVersion = chooseVersion(provisionalBitsNeeded, correctionLevel);
int bitsNeeded = header.Size + mode.GetVersionCharacterCount(provisionalVersion) + data.Size;
QRVersion version = chooseVersion(bitsNeeded, correctionLevel);
BitList headerNData = new BitList();
headerNData.AppendBitList(header);
int numLetters = mode == QRMode.BYTE ? data.ByteSize : content.Length;
AppendLengthInfo(numLetters, version, mode, headerNData);
headerNData.AppendBitList(data);
QRVersion.CorrectionBlockSet correctionBlockSet = version.GetBlockSetByLevel(correctionLevel);
int dataBytesQty = version.TotalCodewords - correctionBlockSet.TotalCodewords;
WriteTerminationSection(dataBytesQty, headerNData);
BitList finalBits = MixWithCorrectionBytes(headerNData, version.TotalCodewords, dataBytesQty, correctionBlockSet.TotalQty);
int dimension = version.Dimension;
QREncoderMatrix matrix = new QREncoderMatrix(dimension, content, correctionLevel, mode, version);
int maskPattern = chooseMaskPattern(finalBits, correctionLevel, version, matrix);
matrix.MaskPattern = maskPattern;
matrix.FormMatrix(finalBits, correctionLevel, version, maskPattern);
return(matrix);
}
public static QREncoderMatrix Encode(string content, QRCorrectionLevel correctionLevel)
{
string encoding = DEFAULT_ENCODING;
QRMode mode = chooseMode(content, encoding);
BitList header = new BitList();
header.AppendBits(mode.ModeSignature, 4);
BitList data = new BitList();
AppendBytes(content, mode, data);
int provisionalBitsNeeded = header.Size + mode.GetVersionCharacterCount(QRVersion.GetVersionByNumber(1)) + data.Size;
QRVersion provisionalVersion = chooseVersion(provisionalBitsNeeded, correctionLevel);
int bitsNeeded = header.Size + mode.GetVersionCharacterCount(provisionalVersion) + data.Size;
QRVersion version = chooseVersion(bitsNeeded, correctionLevel);
BitList headerNData = new BitList();
headerNData.AppendBitList(header);
int numLetters = mode == QRMode.BYTE ? data.ByteSize : content.Length;
AppendLengthInfo(numLetters, version, mode, headerNData);
headerNData.AppendBitList(data);
QRVersion.CorrectionBlockSet correctionBlockSet = version.GetBlockSetByLevel(correctionLevel);
int dataBytesQty = version.TotalCodewords - correctionBlockSet.TotalCodewords;
WriteTerminationSection(dataBytesQty, headerNData);
BitList finalBits = MixWithCorrectionBytes(headerNData, version.TotalCodewords, dataBytesQty, correctionBlockSet.TotalQty);
int dimension = version.Dimension;
QREncoderMatrix matrix = new QREncoderMatrix( dimension, content, correctionLevel, mode, version);
int maskPattern = chooseMaskPattern(finalBits, correctionLevel, version, matrix);
matrix.MaskPattern = maskPattern;
matrix.FormMatrix(finalBits, correctionLevel, version, maskPattern);
return matrix;
}
private static int chooseMaskPattern(BitList bits, QRCorrectionLevel correctionLevel, QRVersion version, QRMatrix matrix)
{
int minPenalty = Int32.MaxValue; // Assume the lowest possible penalty
int bestMaskPattern = -1;
// Calculate all mask paterns to find the pattern with minimum possible penalty
for (int maskPattern = 0; maskPattern < MASK_PATTERNS_QTY; maskPattern++)
{
matrix.FormMatrix(bits, correctionLevel, version, maskPattern);
int penalty = matrix.GetMaskPenalty();
if (penalty < minPenalty)
{
minPenalty = penalty;
bestMaskPattern = maskPattern;
}
}
return(bestMaskPattern);
}
private static QRVersion chooseVersion(int numInputBits, QRCorrectionLevel ecLevel)
{
for (int versionNum = 1; versionNum <= 40; versionNum++)
{
QRVersion version = QRVersion.GetVersionByNumber(versionNum);
int numBytes = version.TotalCodewords;
QRVersion.CorrectionBlockSet correctionBlocks = version.GetBlockSetByLevel(ecLevel);
int numEcBytes = correctionBlocks.TotalCodewords;
int numDataBytes = numBytes - numEcBytes;
int totalInputBytes = (numInputBits + 7) / 8;
if (numDataBytes >= totalInputBytes)
{
return(version);
}
}
throw new NFXException(StringConsts.CODE_LOGIC_ERROR + typeof(QREncoderMatrix).Name + ".chooseVersion(data)");
}
private void Generate(string content, QRCorrectionLevel correctionLevel, QRImageRenderer.ImageScale scale)
{
Matrix = null;
Matrix = QREncoderMatrix.Encode(content, correctionLevel);
using (MemoryStream stream = new MemoryStream())
{
Matrix.ToBMP(stream, scale: scale);
stream.Flush();
TypeConverter converter = TypeDescriptor.GetConverter(typeof(Bitmap));
Bitmap bmp = converter.ConvertFrom(stream.ToArray()) as Bitmap;
m_pnlImage.BackgroundImage = bmp;
m_txtTrace.Text = Matrix.ToString();
}
}
public CorrectionBlockSet GetBlockSetByLevel(QRCorrectionLevel level)
{
return(m_CorrectionBlockSets[level.Ordinal]);
}
public CorrectionBlockSet GetBlockSetByLevel(QRCorrectionLevel level)
{
return m_CorrectionBlockSets[level.Ordinal];
}
public static QREncoderMatrix CreateMatrix(string content, QRCorrectionLevel correctionLevel)
{
QREncoderMatrix matrix = Encode(content, correctionLevel);
return(matrix);
}
public static QREncoderMatrix CreateMatrix(string content, QRCorrectionLevel correctionLevel)
{
QREncoderMatrix matrix = Encode(content, correctionLevel);
return matrix;
}
private static int chooseMaskPattern(BitList bits, QRCorrectionLevel correctionLevel, QRVersion version, QRMatrix matrix)
{
int minPenalty = Int32.MaxValue; // Assume the lowest possible penalty
int bestMaskPattern = -1;
// Calculate all mask paterns to find the pattern with minimum possible penalty
for (int maskPattern = 0; maskPattern < MASK_PATTERNS_QTY; maskPattern++)
{
matrix.FormMatrix(bits, correctionLevel, version, maskPattern);
int penalty = matrix.GetMaskPenalty();
if (penalty < minPenalty)
{
minPenalty = penalty;
bestMaskPattern = maskPattern;
}
}
return bestMaskPattern;
}
private static QRVersion chooseVersion(int numInputBits, QRCorrectionLevel ecLevel)
{
for (int versionNum = 1; versionNum <= 40; versionNum++)
{
QRVersion version = QRVersion.GetVersionByNumber(versionNum);
int numBytes = version.TotalCodewords;
QRVersion.CorrectionBlockSet correctionBlocks = version.GetBlockSetByLevel(ecLevel);
int numEcBytes = correctionBlocks.TotalCodewords;
int numDataBytes = numBytes - numEcBytes;
int totalInputBytes = (numInputBits + 7) / 8;
if (numDataBytes >= totalInputBytes)
return version;
}
throw new NFXException(StringConsts.CODE_LOGIC_ERROR + typeof(QREncoderMatrix).Name + ".chooseVersion(data)");
}
