/// <summary>
/// インスタンスを初期化します。
/// </summary>
/// <param name="ecLevel">誤り訂正レベル</param>
/// <param name="maxVersion">型番の上限</param>
/// <param name="allowStructuredAppend">複数シンボルへの分割を許可するには true を指定します。</param>
/// <param name="charsetName">文字セット名</param>
public Symbols(ErrorCorrectionLevel ecLevel = ErrorCorrectionLevel.M,
int maxVersion = Constants.MAX_VERSION,
bool allowStructuredAppend = false,
string charsetName = Charset.SHIFT_JIS)
{
if (!(Constants.MIN_VERSION <= maxVersion && maxVersion <= Constants.MAX_VERSION))
{
throw new ArgumentOutOfRangeException(nameof(maxVersion));
}
_items = new List <Symbol>();
_minVersion = Constants.MIN_VERSION;
_maxVersion = maxVersion;
_errorCorrectionLevel = ecLevel;
_structuredAppendAllowed = allowStructuredAppend;
_encoding = Encoding.GetEncoding(charsetName);
_parity = 0;
_currSymbol = new Symbol(this);
_items.Add(_currSymbol);
_encNumeric = new NumericEncoder(_encoding);
_encAlpha = new AlphanumericEncoder(_encoding);
if (Charset.IsJP(charsetName))
{
_encKanji = new KanjiEncoder(_encoding);
}
_encByte = new ByteEncoder(_encoding);
}
/// <summary>
/// 符号化モードを設定します。
/// </summary>
/// <param name="encMode">符号化モード</param>
/// <param name="c">符号化する最初の文字。この文字はシンボルに追加されません。</param>
/// <returns>シンボル容量が不足している場合は false を返します。</returns>
internal bool TrySetEncodingMode(EncodingMode encMode, char c)
{
QRCodeEncoder encoder;
Encoding encoding = _parent.Encoding;
switch (encMode)
{
case EncodingMode.NUMERIC:
encoder = new NumericEncoder(encoding);
break;
case EncodingMode.ALPHA_NUMERIC:
encoder = new AlphanumericEncoder(encoding);
break;
case EncodingMode.EIGHT_BIT_BYTE:
encoder = new ByteEncoder(encoding);
break;
case EncodingMode.KANJI:
if (Charset.IsJP(encoding.WebName))
{
encoder = new KanjiEncoder(encoding);
}
else
{
throw new InvalidOperationException();
}
break;
default:
throw new ArgumentOutOfRangeException(nameof(encMode));
}
int bitLength = encoder.GetCodewordBitLength(c);
while (_dataBitCapacity <
_dataBitCounter
+ ModeIndicator.LENGTH
+ CharCountIndicator.GetLength(_currVersion, encMode)
+ bitLength)
{
if (_currVersion >= _parent.MaxVersion)
{
return(false);
}
SelectVersion();
}
_dataBitCounter += ModeIndicator.LENGTH
+ CharCountIndicator.GetLength(_currVersion, encMode);
_currEncoder = encoder;
_segments.Add(_currEncoder);
_segmentCounter[encMode]++;
_currEncodingMode = encMode;
return(true);
}
public void Encode_AlphaNumericContent_ShouldThrowException()
{
// Arrange
var numericEncoder = new NumericEncoder();
// Act
Action action = () => numericEncoder.Encode("foo", ErrorCorrectionLevel.H);
// Assert
action.Should().Throw <InvalidOperationException>()
.WithMessage("foo can not be ancoded as Numeric");
}
public void Encode_NumericContentTooLong_ShouldThrowException()
{
// Arrange
var numericEncoder = new NumericEncoder();
// Act
Action action = () => numericEncoder.Encode(new string('1', 14297), ErrorCorrectionLevel.H);
// Assert
action.Should().Throw <InvalidOperationException>()
.WithMessage("Too much data to encode");
}
public void Encode(string content, byte[] expectedBytes)
{
// Arrange
var numericEncoder = new NumericEncoder();
// Act
(BitList bits, VersionInfo versionInfo) = numericEncoder.Encode(content, ErrorCorrectionLevel.H);
// Assert
bits.Should().NotBeNull();
versionInfo.Should().NotBeNull();
bits.GetBytes().Should().BeEquivalentTo(expectedBytes);
}
