public FinderPatternFinder(BitMatrix image, ResultPointCallback resultPointCallback)
{
this.image = image;
this.possibleCenters = new System.Collections.Generic.List<Object>(10);
this.crossCheckStateCount = new int[5];
this.resultPointCallback = resultPointCallback;
}
/// <summary> <p>Detects a QR Code in an image, simply.</p>
///
/// </summary>
/// <param name="hints">optional hints to detector
/// </param>
/// <returns> {@link DetectorResult} encapsulating results of detecting a QR Code
/// </returns>
/// <throws> ReaderException if no QR Code can be found </throws>
public virtual DetectorResult detect(System.Collections.Hashtable hints)
{
_resultPointCallback = hints == null?null:(ResultPointCallback) hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK];
FinderPatternFinder finder = new FinderPatternFinder(_image, _resultPointCallback);
FinderPatternInfo info = finder.find(hints);
return ProcessFinderPatternInfo(info);
}
/// <summary>
/// <p>Detects a QR Code in an image, simply.</p>
/// </summary>
/// <param name="hints">optional hints to detector</param>
/// <returns>
/// <see cref="DetectorResult"/> encapsulating results of detecting a QR Code
/// </returns>
public virtual DetectorResult detect(IDictionary<DecodeHintType, object> hints)
{
resultPointCallback = hints == null || !hints.ContainsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK) ? null : (ResultPointCallback)hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK];
FinderPatternFinder finder = new FinderPatternFinder(image, resultPointCallback);
FinderPatternInfo info = finder.find(hints);
if (info == null)
return null;
return processFinderPatternInfo(info);
}
/// <summary> <p>Detects a QR Code in an image, simply.</p>
///
/// </summary>
/// <param name="hints">optional hints to detector
/// </param>
/// <returns> {@link DetectorResult} encapsulating results of detecting a QR Code
/// </returns>
/// <throws> ReaderException if no QR Code can be found </throws>
public virtual DetectorResult detect(Dictionary<DecodeHintType, Object> hints)
{
resultPointCallback = hints == null
? null
: (ResultPointCallback) hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK];
var finder = new FinderPatternFinder(image, resultPointCallback);
FinderPatternInfo info = finder.find(hints);
return processFinderPatternInfo(info);
}
/// <summary> <p>Creates a finder that will look in a portion of the whole image.</p>
///
/// </summary>
/// <param name="image">image to search
/// </param>
/// <param name="startX">left column from which to start searching
/// </param>
/// <param name="startY">top row from which to start searching
/// </param>
/// <param name="width">width of region to search
/// </param>
/// <param name="height">height of region to search
/// </param>
/// <param name="moduleSize">estimated module size so far
/// </param>
internal AlignmentPatternFinder(BitMatrix image, int startX, int startY, int width, int height, float moduleSize, ResultPointCallback resultPointCallback)
{
this.image = image;
this.possibleCenters = new List<AlignmentPattern>(5);
this.startX = startX;
this.startY = startY;
this.width = width;
this.height = height;
this.moduleSize = moduleSize;
this.crossCheckStateCount = new int[3];
this.resultPointCallback = resultPointCallback;
}
internal MultiFinderPatternFinder(BitMatrix image, ResultPointCallback resultPointCallback)
: base(image, resultPointCallback)
{
}
/// <summary> <p>Creates a finder that will look in a portion of the whole image.</p>
///
/// </summary>
/// <param name="image">image to search
/// </param>
/// <param name="startX">left column from which to start searching
/// </param>
/// <param name="startY">top row from which to start searching
/// </param>
/// <param name="width">width of region to search
/// </param>
/// <param name="height">height of region to search
/// </param>
/// <param name="moduleSize">estimated module size so far
/// </param>
internal AlignmentPatternFinder(BitMatrix image, int startX, int startY, int width, int height, float moduleSize, ResultPointCallback resultPointCallback)
{
this.image = image;
this.possibleCenters = new List <AlignmentPattern>(5);
this.startX = startX;
this.startY = startY;
this.width = width;
this.height = height;
this.moduleSize = moduleSize;
this.crossCheckStateCount = new int[3];
this.resultPointCallback = resultPointCallback;
}
/// <summary> <p>Detects a QR Code in an image, simply.</p>
///
/// </summary>
/// <param name="hints">optional hints to detector
/// </param>
/// <returns> {@link DetectorResult} encapsulating results of detecting a QR Code
/// </returns>
/// <throws> ReaderException if no QR Code can be found </throws>
public virtual DetectorResult detect(System.Collections.Generic.Dictionary<Object,Object> hints)
{
resultPointCallback = hints == null?null: hints.ContainsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK)?(ResultPointCallback) hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK]:null;
FinderPatternFinder finder = new FinderPatternFinder(image, resultPointCallback);
FinderPatternInfo info = finder.find(hints);
return processFinderPatternInfo(info);
}
/// <summary>
/// <p>Like decodeRow(int, BitArray, java.util.Map), but
/// allows caller to inform method about where the UPC/EAN start pattern is
/// found. This allows this to be computed once and reused across many implementations.</p>
/// </summary>
virtual public Result decodeRow(int rowNumber,
BitArray row,
int[] startGuardRange,
IDictionary <DecodeHintType, object> hints)
{
ResultPointCallback resultPointCallback = hints == null || !hints.ContainsKey(DecodeHintType.NEED_RESULT_POINT_CALLBACK) ? null :
(ResultPointCallback)hints[DecodeHintType.NEED_RESULT_POINT_CALLBACK];
if (resultPointCallback != null)
{
resultPointCallback(new ResultPoint(
(startGuardRange[0] + startGuardRange[1]) / 2.0f, rowNumber
));
}
StringBuilder result = decodeRowStringBuffer;
result.Length = 0;
int endStart = decodeMiddle(row, startGuardRange, result);
if (endStart < 0)
{
return(null);
}
if (resultPointCallback != null)
{
resultPointCallback(new ResultPoint(
endStart, rowNumber
));
}
int[] endRange = decodeEnd(row, endStart);
if (endRange == null)
{
return(null);
}
if (resultPointCallback != null)
{
resultPointCallback(new ResultPoint(
(endRange[0] + endRange[1]) / 2.0f, rowNumber
));
}
// Make sure there is a quiet zone at least as big as the end pattern after the barcode. The
// spec might want more whitespace, but in practice this is the maximum we can count on.
int end = endRange[1];
int quietEnd = end + (end - endRange[0]);
if (quietEnd >= row.Size || !row.isRange(end, quietEnd, false))
{
return(null);
}
String resultString = result.ToString();
if (!checkChecksum(resultString))
{
return(null);
}
float left = (startGuardRange[1] + startGuardRange[0]) / 2.0f;
float right = (endRange[1] + endRange[0]) / 2.0f;
BarcodeFormat format = BarcodeFormat;
Result decodeResult = new Result(resultString,
null, // no natural byte representation for these barcodes
new ResultPoint[]
{
new ResultPoint(left, rowNumber),
new ResultPoint(right, rowNumber)
},
format);
Result extensionResult = extensionReader.decodeRow(rowNumber, row, endRange[1]);
if (extensionResult != null)
{
decodeResult.putMetadata(ResultMetadataType.UPC_EAN_EXTENSION, extensionResult.Text);
decodeResult.putAllMetadata(extensionResult.ResultMetadata);
decodeResult.addResultPoints(extensionResult.ResultPoints);
}
if (format == BarcodeFormat.EAN_13 || format == BarcodeFormat.UPC_A)
{
String countryID = eanManSupport.lookupCountryIdentifier(resultString);
if (countryID != null)
{
decodeResult.putMetadata(ResultMetadataType.POSSIBLE_COUNTRY, countryID);
}
}
return(decodeResult);
}
internal MultiFinderPatternFinder(BitMatrix image, ResultPointCallback resultPointCallback)
: base(image, resultPointCallback)
{
}
