Result decodeRow(int rowNumber, BitArray row, int rowOffset) throws NotFoundException {
int[] extensionStartRange =
UPCEANReader.findGuardPattern(row, rowOffset, false, EXTENSION_START_PATTERN);
StringBuilder result = decodeRowStringBuffer;
result.setLength(0);
int end = decodeMiddle(row, extensionStartRange, result);
String resultString = result.toString();
Map<ResultMetadataType, Object> extensionData = parseExtensionString(resultString);
Result extensionResult =
new Result(
resultString,
null,
new ResultPoint[] {
new ResultPoint(
(extensionStartRange[0] + extensionStartRange[1]) / 2.0f, (float) rowNumber),
new ResultPoint((float) end, (float) rowNumber),
},
BarcodeFormat.UPC_EAN_EXTENSION);
if (extensionData != null) {
extensionResult.putAllMetadata(extensionData);
}
return extensionResult;
}
Result decodeRow(int rowNumber, BitArray row, int rowOffset) throws NotFoundException {
int[] extensionStartRange =
UPCEANReader.findGuardPattern(row, rowOffset, false, EXTENSION_START_PATTERN);
try {
return fiveSupport.decodeRow(rowNumber, row, extensionStartRange);
} catch (ReaderException re) {
return twoSupport.decodeRow(rowNumber, row, extensionStartRange);
}
}
int decodeMiddle(BitArray row, int[] startRange, StringBuilder resultString)
throws NotFoundException {
int[] counters = decodeMiddleCounters;
counters[0] = 0;
counters[1] = 0;
counters[2] = 0;
counters[3] = 0;
int end = row.getSize();
int rowOffset = startRange[1];
int lgPatternFound = 0;
for (int x = 0; x < 5 && rowOffset < end; x++) {
int bestMatch =
UPCEANReader.decodeDigit(row, counters, rowOffset, UPCEANReader.L_AND_G_PATTERNS);
resultString.append((char) ('0' + bestMatch % 10));
for (int counter : counters) {
rowOffset += counter;
}
if (bestMatch >= 10) {
lgPatternFound |= 1 << (4 - x);
}
if (x != 4) {
// Read off separator if not last
while (rowOffset < end && !row.get(rowOffset)) {
rowOffset++;
}
while (rowOffset < end && row.get(rowOffset)) {
rowOffset++;
}
}
}
if (resultString.length() != 5) {
throw NotFoundException.getNotFoundInstance();
}
int checkDigit = determineCheckDigit(lgPatternFound);
if (extensionChecksum(resultString.toString()) != checkDigit) {
throw NotFoundException.getNotFoundInstance();
}
return rowOffset;
}
protected int decodeMiddle(BitArray row, int[] startRange, StringBuffer resultString)
throws NotFoundException {
return ean13Reader.decodeMiddle(row, startRange, resultString);
}
public Result decode(BinaryBitmap image, Hashtable hints)
throws NotFoundException, FormatException {
return maybeReturnResult(ean13Reader.decode(image, hints));
}
public Result decodeRow(int rowNumber, BitArray row, Hashtable hints)
throws NotFoundException, FormatException, ChecksumException {
return maybeReturnResult(ean13Reader.decodeRow(rowNumber, row, hints));
}