/// <summary>
/// Locates and decodes a Data Matrix code in an image.
/// </summary>
/// <param name="image">image of barcode to decode</param>
/// <param name="hints">passed as a {@link java.util.Hashtable} from {@link com.google.zxing.DecodeHintType}
/// to arbitrary data. The
/// meaning of the data depends upon the hint type. The implementation may or may not do
/// anything with these hints.</param>
/// <returns>
/// String which the barcode encodes
/// </returns>
public Result decode(BinaryBitmap image, IDictionary<DecodeHintType, object> hints)
{
var blackmatrix = image.BlackMatrix;
if (blackmatrix == null)
return null;
Detector detector = new Detector(blackmatrix);
ResultPoint[] points = null;
DecoderResult decoderResult = null;
var detectorResult = detector.detect(false);
if (detectorResult != null)
{
points = detectorResult.Points;
decoderResult = new Decoder().decode(detectorResult);
}
if (decoderResult == null)
{
detectorResult = detector.detect(true);
if (detectorResult == null)
return null;
points = detectorResult.Points;
decoderResult = new Decoder().decode(detectorResult);
if (decoderResult == null)
return null;
}
if (hints != null &&
hints.ContainsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK))
{
var rpcb = (ResultPointCallback)hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK];
if (rpcb != null)
{
foreach (var point in points)
{
rpcb(point);
}
}
}
var result = new Result(decoderResult.Text, decoderResult.RawBytes, points, BarcodeFormat.AZTEC);
IList<byte[]> byteSegments = decoderResult.ByteSegments;
if (byteSegments != null)
{
result.putMetadata(ResultMetadataType.BYTE_SEGMENTS, byteSegments);
}
var ecLevel = decoderResult.ECLevel;
if (ecLevel != null)
{
result.putMetadata(ResultMetadataType.ERROR_CORRECTION_LEVEL, ecLevel);
}
result.putMetadata(ResultMetadataType.AZTEC_EXTRA_METADATA,
new AztecResultMetadata(detectorResult.Compact, detectorResult.NbDatablocks, detectorResult.NbLayers));
return result;
}