/// <summary> Append length info. On success, store the result in "bits".</summary> internal static void appendLengthInfo(int numLetters, int version, Mode mode, BitVector bits) { int numBits = mode.getCharacterCountBits(Version.getVersionForNumber(version)); if (numLetters > ((1 << numBits) - 1)) { throw new WriterException(numLetters + "is bigger than" + ((1 << numBits) - 1)); } bits.appendBits(numLetters, numBits); }
/// <summary> /// Combine Gma.QrCodeNet.Encoding input recognition method and version control method /// with legacy code. To create expected answer. /// This is base on assume Gma.QrCodeNet.Encoding input recognition and version control sometime /// give different result as legacy code. /// </summary> /// <param name="content"></param> /// <returns></returns> internal static BitVector DataEncodeUsingReferenceImplementation(string content, ErrorCorrectionLevel ecLevel, out QRCodeInternal qrInternal) { if (string.IsNullOrEmpty(content)) { throw new ArgumentException("input string content can not be null or empty"); } //Choose mode RecognitionStruct recognitionResult = InputRecognise.Recognise(content); string encodingName = recognitionResult.EncodingName; Mode mode = ConvertMode(recognitionResult.Mode); //append byte to databits BitVector dataBits = new BitVector(); EncoderInternal.appendBytes(content, mode, dataBits, encodingName); int dataBitsLength = dataBits.size(); VersionControlStruct vcStruct = VersionControl.InitialSetup(dataBitsLength, recognitionResult.Mode, ecLevel, recognitionResult.EncodingName); //ECI BitVector headerAndDataBits = new BitVector(); string defaultByteMode = "iso-8859-1"; if (mode == Mode.BYTE && !defaultByteMode.Equals(encodingName)) { CharacterSetECI eci = CharacterSetECI.getCharacterSetECIByName(encodingName); if (eci != null) { EncoderInternal.appendECI(eci, headerAndDataBits); } } //Mode EncoderInternal.appendModeInfo(mode, headerAndDataBits); //Char info int numLetters = mode.Equals(Mode.BYTE) ? dataBits.sizeInBytes() : content.Length; EncoderInternal.appendLengthInfo(numLetters, vcStruct.VersionDetail.Version, mode, headerAndDataBits); //Combine with dataBits headerAndDataBits.appendBitVector(dataBits); // Terminate the bits properly. EncoderInternal.terminateBits(vcStruct.VersionDetail.NumDataBytes, headerAndDataBits); qrInternal = new QRCodeInternal(); qrInternal.Version = vcStruct.VersionDetail.Version; qrInternal.MatrixWidth = vcStruct.VersionDetail.MatrixWidth; qrInternal.EcLevelInternal = ErrorCorrectionLevelConverter.ToInternal(ecLevel); qrInternal.NumTotalBytes = vcStruct.VersionDetail.NumTotalBytes; qrInternal.NumDataBytes = vcStruct.VersionDetail.NumDataBytes; qrInternal.NumRSBlocks = vcStruct.VersionDetail.NumECBlocks; return(headerAndDataBits); }
public QRCode() { mode = null; ecLevel = null; version = -1; matrixWidth = -1; maskPattern = -1; numTotalBytes = -1; numDataBytes = -1; numECBytes = -1; numRSBlocks = -1; matrix = null; }
public QRCode() { mode = null; ecLevel = null; version = - 1; matrixWidth = - 1; maskPattern = - 1; numTotalBytes = - 1; numDataBytes = - 1; numECBytes = - 1; numRSBlocks = - 1; matrix = null; }
/// <summary> Append "bytes" in "mode" mode (encoding) into "bits". On success, store the result in "bits".</summary> internal static void appendBytes(System.String content, Mode mode, BitVector bits, System.String encoding) { if (mode.Equals(Mode.NUMERIC)) { appendNumericBytes(content, bits); } else if (mode.Equals(Mode.ALPHANUMERIC)) { appendAlphanumericBytes(content, bits); } else if (mode.Equals(Mode.BYTE)) { append8BitBytes(content, bits, encoding); } else if (mode.Equals(Mode.KANJI)) { appendKanjiBytes(content, bits); } else { throw new WriterException("Invalid mode: " + mode); } }
/// <summary> Append mode info. On success, store the result in "bits".</summary> internal static void appendModeInfo(Mode mode, BitVector bits) { bits.appendBits(mode.Bits, 4); }
/// <summary> Initialize "qrCode" according to "numInputBytes", "ecLevel", and "mode". On success, /// modify "qrCode". /// </summary> private static void initQRCode(int numInputBytes, ErrorCorrectionLevel ecLevel, Mode mode, QRCode qrCode) { qrCode.ECLevel = ecLevel; qrCode.Mode = mode; // In the following comments, we use numbers of Version 7-H. for (int versionNum = 1; versionNum <= 40; versionNum++) { Version version = Version.getVersionForNumber(versionNum); // numBytes = 196 int numBytes = version.TotalCodewords; // getNumECBytes = 130 Version.ECBlocks ecBlocks = version.getECBlocksForLevel(ecLevel); int numEcBytes = ecBlocks.TotalECCodewords; // getNumRSBlocks = 5 int numRSBlocks = ecBlocks.NumBlocks; // getNumDataBytes = 196 - 130 = 66 int numDataBytes = numBytes - numEcBytes; // We want to choose the smallest version which can contain data of "numInputBytes" + some // extra bits for the header (mode info and length info). The header can be three bytes // (precisely 4 + 16 bits) at most. Hence we do +3 here. if (numDataBytes >= numInputBytes + 3) { // Yay, we found the proper rs block info! qrCode.Version = versionNum; qrCode.NumTotalBytes = numBytes; qrCode.NumDataBytes = numDataBytes; qrCode.NumRSBlocks = numRSBlocks; // getNumECBytes = 196 - 66 = 130 qrCode.NumECBytes = numEcBytes; // matrix width = 21 + 6 * 4 = 45 qrCode.MatrixWidth = version.DimensionForVersion; return ; } } throw new WriterException("Cannot find proper rs block info (input data too big?)"); }
protected virtual IEnumerable <bool> EncodeUsingReferenceImplementation(string content, Mode mode) { // Step 2: Append "bytes" into "dataBits" in appropriate encoding. BitVector dataBits = new BitVector(); EncoderInternal.appendBytes(content, mode, dataBits, null); return(dataBits); }
public static void encode(System.String content, ErrorCorrectionLevel ecLevel, System.Collections.Hashtable hints, QRCode qrCode) { System.String encoding = hints == null?null:(System.String)hints[EncodeHintType.CHARACTER_SET]; if (encoding == null) { encoding = DEFAULT_BYTE_MODE_ENCODING; } // Step 1: Choose the mode (encoding). Mode mode = chooseMode(content, encoding); // Step 2: Append "bytes" into "dataBits" in appropriate encoding. BitVector dataBits = new BitVector(); appendBytes(content, mode, dataBits, encoding); // Step 3: Initialize QR code that can contain "dataBits". int numInputBytes = dataBits.sizeInBytes(); initQRCode(numInputBytes, ecLevel, mode, qrCode); // Step 4: Build another bit vector that contains header and data. BitVector headerAndDataBits = new BitVector(); // Step 4.5: Append ECI message if applicable if (mode == Mode.BYTE && !DEFAULT_BYTE_MODE_ENCODING.Equals(encoding)) { CharacterSetECI eci = CharacterSetECI.getCharacterSetECIByName(encoding); if (eci != null) { appendECI(eci, headerAndDataBits); } } appendModeInfo(mode, headerAndDataBits); int numLetters = mode.Equals(Mode.BYTE)?dataBits.sizeInBytes():content.Length; appendLengthInfo(numLetters, qrCode.Version, mode, headerAndDataBits); headerAndDataBits.appendBitVector(dataBits); // Step 5: Terminate the bits properly. terminateBits(qrCode.NumDataBytes, headerAndDataBits); // Step 6: Interleave data bits with error correction code. BitVector finalBits = new BitVector(); interleaveWithECBytes(headerAndDataBits, qrCode.NumTotalBytes, qrCode.NumDataBytes, qrCode.NumRSBlocks, finalBits); // Step 7: Choose the mask pattern and set to "qrCode". ByteMatrix matrix = new ByteMatrix(qrCode.MatrixWidth, qrCode.MatrixWidth); qrCode.MaskPattern = chooseMaskPattern(finalBits, qrCode.ECLevel, qrCode.Version, matrix); // Step 8. Build the matrix and set it to "qrCode". MatrixUtil.buildMatrix(finalBits, qrCode.ECLevel, qrCode.Version, qrCode.MaskPattern, matrix); qrCode.Matrix = matrix; // Step 9. Make sure we have a valid QR Code. if (!qrCode.Valid) { throw new WriterException("Invalid QR code: " + qrCode.ToString()); } }
/// <summary> Initialize "qrCode" according to "numInputBytes", "ecLevel", and "mode". On success, /// modify "qrCode". /// </summary> private static void initQRCode(int numInputBytes, ErrorCorrectionLevel ecLevel, Mode mode, QRCode qrCode) { qrCode.ECLevel = ecLevel; qrCode.Mode = mode; // In the following comments, we use numbers of Version 7-H. for (int versionNum = 1; versionNum <= 40; versionNum++) { Version version = Version.getVersionForNumber(versionNum); // numBytes = 196 int numBytes = version.TotalCodewords; // getNumECBytes = 130 Version.ECBlocks ecBlocks = version.getECBlocksForLevel(ecLevel); int numEcBytes = ecBlocks.TotalECCodewords; // getNumRSBlocks = 5 int numRSBlocks = ecBlocks.NumBlocks; // getNumDataBytes = 196 - 130 = 66 int numDataBytes = numBytes - numEcBytes; // We want to choose the smallest version which can contain data of "numInputBytes" + some // extra bits for the header (mode info and length info). The header can be three bytes // (precisely 4 + 16 bits) at most. Hence we do +3 here. if (numDataBytes >= numInputBytes + 3) { // Yay, we found the proper rs block info! qrCode.Version = versionNum; qrCode.NumTotalBytes = numBytes; qrCode.NumDataBytes = numDataBytes; qrCode.NumRSBlocks = numRSBlocks; // getNumECBytes = 196 - 66 = 130 qrCode.NumECBytes = numEcBytes; // matrix width = 21 + 6 * 4 = 45 qrCode.MatrixWidth = version.DimensionForVersion; return; } } throw new WriterException("Cannot find proper rs block info (input data too big?)"); }
protected virtual IEnumerable<bool> EncodeUsingReferenceImplementation(string content, Mode mode) { // Step 2: Append "bytes" into "dataBits" in appropriate encoding. BitVector dataBits = new BitVector(); EncoderInternal.appendBytes(content, mode, dataBits, null); return dataBits; }