Java Code Examples for com.google.zxing.BarcodeFormat#UPC_A

@Override
public ProductParsedResult parse(Result result) {
	BarcodeFormat format = result.getBarcodeFormat();
	if (!(format == BarcodeFormat.UPC_A || format == BarcodeFormat.UPC_E || format == BarcodeFormat.EAN_8
			|| format == BarcodeFormat.EAN_13)) {
		return null;
	}
	String rawText = getMassagedText(result);
	if (!isStringOfDigits(rawText, rawText.length())) {
		return null;
	}
	// Not actually checking the checksum again here

	String normalizedProductID;
	// Expand UPC-E for purposes of searching
	if (format == BarcodeFormat.UPC_E && rawText.length() == 8) {
		normalizedProductID = UPCEReader.convertUPCEtoUPCA(rawText);
	} else {
		normalizedProductID = rawText;
	}

	return new ProductParsedResult(rawText, normalizedProductID);
}
 

@Override
public ProductParsedResult parse(Result result) {
  BarcodeFormat format = result.getBarcodeFormat();
  if (!(format == BarcodeFormat.UPC_A || format == BarcodeFormat.UPC_E ||
        format == BarcodeFormat.EAN_8 || format == BarcodeFormat.EAN_13)) {
    return null;
  }
  String rawText = getMassagedText(result);
  if (!isStringOfDigits(rawText, rawText.length())) {
    return null;
  }
  // Not actually checking the checksum again here    

  String normalizedProductID;
  // Expand UPC-E for purposes of searching
  if (format == BarcodeFormat.UPC_E && rawText.length() == 8) {
    normalizedProductID = UPCEReader.convertUPCEtoUPCA(rawText);
  } else {
    normalizedProductID = rawText;
  }

  return new ProductParsedResult(rawText, normalizedProductID);
}
 

/**
 * Superimpose a line for 1D or dots for 2D to highlight the key features of the barcode.
 *
 * @param barcode   A bitmap of the captured image.
 * @param rawResult The decoded results which contains the points to draw.
 */
private void drawResultPoints(Bitmap barcode, Result rawResult) {
  ResultPoint[] points = rawResult.getResultPoints();
  if (points != null && points.length > 0) {
    Canvas canvas = new Canvas(barcode);
    Paint paint = new Paint();
    paint.setColor(getResources().getColor(fakeR.getId("color", "result_points")));
    if (points.length == 2) {
      paint.setStrokeWidth(4.0f);
      drawLine(canvas, paint, points[0], points[1]);
    } else if (points.length == 4 &&
               (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A ||
                rawResult.getBarcodeFormat() == BarcodeFormat.EAN_13)) {
      // Hacky special case -- draw two lines, for the barcode and metadata
      drawLine(canvas, paint, points[0], points[1]);
      drawLine(canvas, paint, points[2], points[3]);
    } else {
      paint.setStrokeWidth(10.0f);
      for (ResultPoint point : points) {
        canvas.drawPoint(point.getX(), point.getY(), paint);
      }
    }
  }
}
 

private static Result maybeReturnResult(Result result) throws FormatException {
	String text = result.getText();
	if (text.charAt(0) == '0') {
		return new Result(text.substring(1), null, result.getResultPoints(), BarcodeFormat.UPC_A);
	} else {
		throw FormatException.getFormatInstance();
	}
}
 

private static Result maybeReturnResult(Result result) throws FormatException {
  String text = result.getText();
  if (text.charAt(0) == '0') {
    return new Result(text.substring(1), null, result.getResultPoints(), BarcodeFormat.UPC_A);
  } else {
    throw FormatException.getFormatInstance();
  }
}
 

/**
 * Superimpose a line for 1D or dots for 2D to highlight the key features of
 * the barcode.
 * 
 * @param barcode
 *            A bitmap of the captured image.
 * @param scaleFactor
 *            amount by which thumbnail was scaled
 * @param rawResult
 *            The decoded results which contains the points to draw.
 */
private void drawResultPoints(Bitmap barcode, float scaleFactor,
		Result rawResult) {
	ResultPoint[] points = rawResult.getResultPoints();
	if (points != null && points.length > 0) {
		Canvas canvas = new Canvas(barcode);
		Paint paint = new Paint();
		paint.setColor(getResources().getColor(R.color.result_points));
		if (points.length == 2) {
			paint.setStrokeWidth(4.0f);
			drawLine(canvas, paint, points[0], points[1], scaleFactor);
		} else if (points.length == 4
				&& (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A || rawResult
						.getBarcodeFormat() == BarcodeFormat.EAN_13)) {
			// Hacky special case -- draw two lines, for the barcode and
			// metadata
			drawLine(canvas, paint, points[0], points[1], scaleFactor);
			drawLine(canvas, paint, points[2], points[3], scaleFactor);
		} else {
			paint.setStrokeWidth(10.0f);
			for (ResultPoint point : points) {
				if (point != null) {
					canvas.drawPoint(scaleFactor * point.getX(),
							scaleFactor * point.getY(), paint);
				}
			}
		}
	}
}
 

/**
 * Method is used to convert parsed id to BarcodeFormat to create an image of the qr code
 * @param id as int
 * @return format as BarcodeFormat
 */
public BarcodeFormat idToBarcodeFormat(int id){
    BarcodeFormat format;
    switch(id){
        case 1:
            format = BarcodeFormat.CODABAR;
            break;
        case 2:
            format= BarcodeFormat.CODE_128;
            break;
        case 3:
            format = BarcodeFormat.CODE_39;
            break;
        case 4:
            format = BarcodeFormat.EAN_13;
            break;
        case 5:
            format = BarcodeFormat.EAN_8;
            break;
        case 6:
            format = BarcodeFormat.ITF;
            break;
        case 7:
            format = BarcodeFormat.PDF_417;
            break;
        case 8:
            format = BarcodeFormat.UPC_A;
            break;
        case 9:
            format = BarcodeFormat.QR_CODE;
            break;
        case 10:
            format = BarcodeFormat.AZTEC;
            break;
        default:
            format = BarcodeFormat.CODABAR;
            break;
    }
    return format;
}
 

/**
 * Method is used to convert parsed String to BarcodeFormat to create an image of the qr code
 * @param stringFormat as String
 * @return format as BarcodeFormat
 */
public BarcodeFormat StringToBarcodeFormat(String stringFormat){
    BarcodeFormat format;
    switch(stringFormat){
        case "CODBAR":
            format = BarcodeFormat.CODABAR;
            break;
        case "CODE_128":
            format= BarcodeFormat.CODE_128;
            break;
        case "CODE_39":
            format = BarcodeFormat.CODE_39;
            break;
        case "EAN_13":
            format = BarcodeFormat.EAN_13;
            break;
        case "EAN_8":
            format = BarcodeFormat.EAN_8;
            break;
        case "ITF":
            format = BarcodeFormat.ITF;
            break;
        case "PDF_417":
            format = BarcodeFormat.PDF_417;
            break;
        case "UPC_A":
            format = BarcodeFormat.UPC_A;
            break;
        case "QR_CODE":
            format = BarcodeFormat.QR_CODE;
            break;
        case "AZTEC":
            format = BarcodeFormat.AZTEC;
            break;
        default:
            format = BarcodeFormat.CODABAR;
            break;
    }
    return format;
}
 

/**
 * Superimpose a line for 1D or dots for 2D to highlight the key features of
 * the barcode.
 *
 * @param barcode
 *            A bitmap of the captured image.
 * @param scaleFactor
 *            amount by which thumbnail was scaled
 * @param rawResult
 *            The decoded results which contains the points to draw.
 */
private static void drawResultPoints(Bitmap barcode, float scaleFactor,
        Result rawResult, int color) {
    ResultPoint[] points = rawResult.getResultPoints();
    if (points != null && points.length > 0) {
        Canvas canvas = new Canvas(barcode);
        Paint paint = new Paint();
        paint.setColor(color);
        if (points.length == 2) {
            paint.setStrokeWidth(4.0f);
            drawLine(canvas, paint, points[0], points[1], scaleFactor);
        } else if (points.length == 4
                && (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A || rawResult
                        .getBarcodeFormat() == BarcodeFormat.EAN_13)) {
            // Hacky special case -- draw two lines, for the barcode and metadata
            drawLine(canvas, paint, points[0], points[1], scaleFactor);
            drawLine(canvas, paint, points[2], points[3], scaleFactor);
        } else {
            paint.setStrokeWidth(10.0f);
            for (ResultPoint point : points) {
                if (point != null) {
                    canvas.drawPoint(scaleFactor * point.getX(),
                            scaleFactor * point.getY(), paint);
                }
            }
        }
    }
}
 

private static Result a(Result result)
{
    String s = result.getText();
    if (s.charAt(0) == '0')
    {
        return new Result(s.substring(1), null, result.getResultPoints(), BarcodeFormat.UPC_A);
    } else
    {
        throw FormatException.getFormatInstance();
    }
}
 

/**
 * Superimpose a line for 1D or dots for 2D to highlight the key features of the barcode.
 *
 * @param barcode   A bitmap of the captured image.
 * @param rawResult The decoded results which contains the points to draw.
 */
private void drawResultPoints(Bitmap barcode, Result rawResult) {
  ResultPoint[] points = rawResult.getResultPoints();
  if (points != null && points.length > 0) {
    Canvas canvas = new Canvas(barcode);
    Paint paint = new Paint();
    paint.setColor(getResources().getColor(R.color.result_image_border));
    paint.setStrokeWidth(3.0f);
    paint.setStyle(Paint.Style.STROKE);
    Rect border = new Rect(2, 2, barcode.getWidth() - 2, barcode.getHeight() - 2);
    canvas.drawRect(border, paint);

    paint.setColor(getResources().getColor(R.color.result_points));
    if (points.length == 2) {
      paint.setStrokeWidth(4.0f);
      drawLine(canvas, paint, points[0], points[1]);
    } else if (points.length == 4 &&
               (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A ||
                rawResult.getBarcodeFormat() == BarcodeFormat.EAN_13)) {
      // Hacky special case -- draw two lines, for the barcode and metadata
      drawLine(canvas, paint, points[0], points[1]);
      drawLine(canvas, paint, points[2], points[3]);
    } else {
      paint.setStrokeWidth(10.0f);
      for (ResultPoint point : points) {
        canvas.drawPoint(point.getX(), point.getY(), paint);
      }
    }
  }
}
 

private static Result maybeReturnResult(Result result) throws FormatException {
  String text = result.getText();
  if (text.charAt(0) == '0') {
    Result retval = new Result(text.substring(1), null, result.getResultPoints(), BarcodeFormat.UPC_A);
    retval.putAllMetadata(result.getResultMetadata());
    return retval;
  } else {
    throw FormatException.getFormatInstance();
  }
}
 

@Override
public Result decodeRow(int rowNumber,
                        BitArray row,
                        Map<DecodeHintType,?> hints) throws NotFoundException {
  // Compute this location once and reuse it on multiple implementations
  int[] startGuardPattern = UPCEANReader.findStartGuardPattern(row);
  for (UPCEANReader reader : readers) {
    try {
      Result result = reader.decodeRow(rowNumber, row, startGuardPattern, hints);
      // Special case: a 12-digit code encoded in UPC-A is identical to a "0"
      // followed by those 12 digits encoded as EAN-13. Each will recognize such a code,
      // UPC-A as a 12-digit string and EAN-13 as a 13-digit string starting with "0".
      // Individually these are correct and their readers will both read such a code
      // and correctly call it EAN-13, or UPC-A, respectively.
      //
      // In this case, if we've been looking for both types, we'd like to call it
      // a UPC-A code. But for efficiency we only run the EAN-13 decoder to also read
      // UPC-A. So we special case it here, and convert an EAN-13 result to a UPC-A
      // result if appropriate.
      //
      // But, don't return UPC-A if UPC-A was not a requested format!
      boolean ean13MayBeUPCA =
          result.getBarcodeFormat() == BarcodeFormat.EAN_13 &&
              result.getText().charAt(0) == '0';
      @SuppressWarnings("unchecked")
      Collection<BarcodeFormat> possibleFormats =
          hints == null ? null : (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
      boolean canReturnUPCA = possibleFormats == null || possibleFormats.contains(BarcodeFormat.UPC_A);

      if (ean13MayBeUPCA && canReturnUPCA) {
        // Transfer the metdata across
        Result resultUPCA = new Result(result.getText().substring(1),
                                       result.getRawBytes(),
                                       result.getResultPoints(),
                                       BarcodeFormat.UPC_A);
        resultUPCA.putAllMetadata(result.getResultMetadata());
        return resultUPCA;
      }
      return result;
    } catch (ReaderException ignored) {
      // continue
    }
  }

  throw NotFoundException.getNotFoundInstance();
}
 

@Override
public Result decodeRow(int rowNumber, BitArray row, Map<DecodeHintType, ?> hints) throws NotFoundException {
	// Compute this location once and reuse it on multiple implementations
	int[] startGuardPattern = UPCEANReader.findStartGuardPattern(row);
	for (UPCEANReader reader : readers) {
		Result result;
		try {
			result = reader.decodeRow(rowNumber, row, startGuardPattern, hints);
		} catch (ReaderException ignored) {
			continue;
		}
		// Special case: a 12-digit code encoded in UPC-A is identical to a
		// "0"
		// followed by those 12 digits encoded as EAN-13. Each will
		// recognize such a code,
		// UPC-A as a 12-digit string and EAN-13 as a 13-digit string
		// starting with "0".
		// Individually these are correct and their readers will both read
		// such a code
		// and correctly call it EAN-13, or UPC-A, respectively.
		//
		// In this case, if we've been looking for both types, we'd like to
		// call it
		// a UPC-A code. But for efficiency we only run the EAN-13 decoder
		// to also read
		// UPC-A. So we special case it here, and convert an EAN-13 result
		// to a UPC-A
		// result if appropriate.
		//
		// But, don't return UPC-A if UPC-A was not a requested format!
		boolean ean13MayBeUPCA = result.getBarcodeFormat() == BarcodeFormat.EAN_13
				&& result.getText().charAt(0) == '0';
		@SuppressWarnings("unchecked")
		Collection<BarcodeFormat> possibleFormats = hints == null ? null
				: (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
		boolean canReturnUPCA = possibleFormats == null || possibleFormats.contains(BarcodeFormat.UPC_A);

		if (ean13MayBeUPCA && canReturnUPCA) {
			// Transfer the metdata across
			Result resultUPCA = new Result(result.getText().substring(1), result.getRawBytes(),
					result.getResultPoints(), BarcodeFormat.UPC_A);
			resultUPCA.putAllMetadata(result.getResultMetadata());
			return resultUPCA;
		}
		return result;
	}

	throw NotFoundException.getNotFoundInstance();
}
 

@Override
BarcodeFormat getBarcodeFormat() {
  return BarcodeFormat.UPC_A;
}
 

@Override
public Result decodeRow(int rowNumber,
                        BitArray row,
                        Map<DecodeHintType,?> hints) throws NotFoundException {
  // Compute this location once and reuse it on multiple implementations
  int[] startGuardPattern = UPCEANReader.findStartGuardPattern(row);
  for (UPCEANReader reader : readers) {
    try {
      Result result = reader.decodeRow(rowNumber, row, startGuardPattern, hints);
      // Special case: a 12-digit code encoded in UPC-A is identical to a "0"
      // followed by those 12 digits encoded as EAN-13. Each will recognize such a code,
      // UPC-A as a 12-digit string and EAN-13 as a 13-digit string starting with "0".
      // Individually these are correct and their readers will both read such a code
      // and correctly call it EAN-13, or UPC-A, respectively.
      //
      // In this case, if we've been looking for both types, we'd like to call it
      // a UPC-A code. But for efficiency we only run the EAN-13 decoder to also read
      // UPC-A. So we special case it here, and convert an EAN-13 result to a UPC-A
      // result if appropriate.
      //
      // But, don't return UPC-A if UPC-A was not a requested format!
      boolean ean13MayBeUPCA =
          result.getBarcodeFormat() == BarcodeFormat.EAN_13 &&
              result.getText().charAt(0) == '0';
      @SuppressWarnings("unchecked")
      Collection<BarcodeFormat> possibleFormats =
          hints == null ? null : (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
      boolean canReturnUPCA = possibleFormats == null || possibleFormats.contains(BarcodeFormat.UPC_A);

      if (ean13MayBeUPCA && canReturnUPCA) {
        // Transfer the metdata across
        Result resultUPCA = new Result(result.getText().substring(1),
                                       result.getRawBytes(),
                                       result.getResultPoints(),
                                       BarcodeFormat.UPC_A);
        resultUPCA.putAllMetadata(result.getResultMetadata());
        return resultUPCA;
      }
      return result;
    } catch (ReaderException ignored) {
      // continue
    }
  }

  throw NotFoundException.getNotFoundInstance();
}
 

@Override
public Result decodeRow(int rowNumber,
                        BitArray row,
                        Map<DecodeHintType,?> hints) throws NotFoundException {
  // Compute this location once and reuse it on multiple implementations
  int[] startGuardPattern = UPCEANReader.findStartGuardPattern(row);
  for (UPCEANReader reader : readers) {
    Result result;
    try {
      result = reader.decodeRow(rowNumber, row, startGuardPattern, hints);
    } catch (ReaderException ignored) {
      continue;
    }
    // Special case: a 12-digit code encoded in UPC-A is identical to a "0"
    // followed by those 12 digits encoded as EAN-13. Each will recognize such a code,
    // UPC-A as a 12-digit string and EAN-13 as a 13-digit string starting with "0".
    // Individually these are correct and their readers will both read such a code
    // and correctly call it EAN-13, or UPC-A, respectively.
    //
    // In this case, if we've been looking for both types, we'd like to call it
    // a UPC-A code. But for efficiency we only run the EAN-13 decoder to also read
    // UPC-A. So we special case it here, and convert an EAN-13 result to a UPC-A
    // result if appropriate.
    //
    // But, don't return UPC-A if UPC-A was not a requested format!
    boolean ean13MayBeUPCA =
        result.getBarcodeFormat() == BarcodeFormat.EAN_13 &&
            result.getText().charAt(0) == '0';
    @SuppressWarnings("unchecked")      
    Collection<BarcodeFormat> possibleFormats =
        hints == null ? null : (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
    boolean canReturnUPCA = possibleFormats == null || possibleFormats.contains(BarcodeFormat.UPC_A);

    if (ean13MayBeUPCA && canReturnUPCA) {
      // Transfer the metdata across
      Result resultUPCA = new Result(result.getText().substring(1),
                                     result.getRawBytes(),
                                     result.getResultPoints(),
                                     BarcodeFormat.UPC_A);
      resultUPCA.putAllMetadata(result.getResultMetadata());
      return resultUPCA;
    }
    return result;
  }

  throw NotFoundException.getNotFoundInstance();
}
 

@Override
public Result decodeRow(int rowNumber,
                        BitArray row,
                        Map<DecodeHintType,?> hints) throws NotFoundException {
  // Compute this location once and reuse it on multiple implementations
  int[] startGuardPattern = UPCEANReader.findStartGuardPattern(row);
  for (UPCEANReader reader : readers) {
    Result result;
    try {
      result = reader.decodeRow(rowNumber, row, startGuardPattern, hints);
    } catch (ReaderException ignored) {
      continue;
    }
    // Special case: a 12-digit code encoded in UPC-A is identical to a "0"
    // followed by those 12 digits encoded as EAN-13. Each will recognize such a code,
    // UPC-A as a 12-digit string and EAN-13 as a 13-digit string starting with "0".
    // Individually these are correct and their readers will both read such a code
    // and correctly call it EAN-13, or UPC-A, respectively.
    //
    // In this case, if we've been looking for both types, we'd like to call it
    // a UPC-A code. But for efficiency we only run the EAN-13 decoder to also read
    // UPC-A. So we special case it here, and convert an EAN-13 result to a UPC-A
    // result if appropriate.
    //
    // But, don't return UPC-A if UPC-A was not a requested format!
    boolean ean13MayBeUPCA =
        result.getBarcodeFormat() == BarcodeFormat.EAN_13 &&
            result.getText().charAt(0) == '0';
    @SuppressWarnings("unchecked")      
    Collection<BarcodeFormat> possibleFormats =
        hints == null ? null : (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
    boolean canReturnUPCA = possibleFormats == null || possibleFormats.contains(BarcodeFormat.UPC_A);

    if (ean13MayBeUPCA && canReturnUPCA) {
      // Transfer the metdata across
      Result resultUPCA = new Result(result.getText().substring(1),
                                     result.getRawBytes(),
                                     result.getResultPoints(),
                                     BarcodeFormat.UPC_A);
      resultUPCA.putAllMetadata(result.getResultMetadata());
      return resultUPCA;
    }
    return result;
  }

  throw NotFoundException.getNotFoundInstance();
}
 

@Override
BarcodeFormat getBarcodeFormat() {
  return BarcodeFormat.UPC_A;
}
 

/**
 * <p>Like {@link #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>
 */
public Result decodeRow(int rowNumber,
                        BitArray row,
                        int[] startGuardRange,
                        Map<DecodeHintType,?> hints)
    throws NotFoundException, ChecksumException, FormatException {

  ResultPointCallback resultPointCallback = hints == null ? null :
      (ResultPointCallback) hints.get(DecodeHintType.NEED_RESULT_POINT_CALLBACK);

  if (resultPointCallback != null) {
    resultPointCallback.foundPossibleResultPoint(new ResultPoint(
        (startGuardRange[0] + startGuardRange[1]) / 2.0f, rowNumber
    ));
  }

  StringBuilder result = decodeRowStringBuffer;
  result.setLength(0);
  int endStart = decodeMiddle(row, startGuardRange, result);

  if (resultPointCallback != null) {
    resultPointCallback.foundPossibleResultPoint(new ResultPoint(
        endStart, rowNumber
    ));
  }

  int[] endRange = decodeEnd(row, endStart);

  if (resultPointCallback != null) {
    resultPointCallback.foundPossibleResultPoint(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.getSize() || !row.isRange(end, quietEnd, false)) {
    throw NotFoundException.getNotFoundInstance();
  }

  String resultString = result.toString();
  if (!checkChecksum(resultString)) {
    throw ChecksumException.getChecksumInstance();
  }

  float left = (float) (startGuardRange[1] + startGuardRange[0]) / 2.0f;
  float right = (float) (endRange[1] + endRange[0]) / 2.0f;
  BarcodeFormat format = getBarcodeFormat();
  Result decodeResult = new Result(resultString,
      null, // no natural byte representation for these barcodes
      new ResultPoint[]{
          new ResultPoint(left, (float) rowNumber),
          new ResultPoint(right, (float) rowNumber)},
      format);

  try {
    Result extensionResult = extensionReader.decodeRow(rowNumber, row, endRange[1]);
    decodeResult.putMetadata(ResultMetadataType.UPC_EAN_EXTENSION, extensionResult.getText());
    decodeResult.putAllMetadata(extensionResult.getResultMetadata());
    decodeResult.addResultPoints(extensionResult.getResultPoints());
  } catch (ReaderException re) {
    // continue
  }

  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;
}