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ZXDataMatrixBitMatrixParser.h 1.3KB

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  1. /*
  2. * Copyright 2012 ZXing authors
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. @class ZXBitMatrix, ZXByteArray, ZXDataMatrixVersion;
  17. @interface ZXDataMatrixBitMatrixParser : NSObject
  18. @property (nonatomic, strong, readonly) ZXDataMatrixVersion *version;
  19. /**
  20. * @param bitMatrix ZXBitMatrix to parse
  21. * @return nil if dimension is < 8 or > 144 or not 0 mod 2
  22. */
  23. - (id)initWithBitMatrix:(ZXBitMatrix *)bitMatrix error:(NSError **)error;
  24. /**
  25. * Reads the bits in the ZXBitMatrix representing the mapping matrix (No alignment patterns)
  26. * in the correct order in order to reconstitute the codewords bytes contained within the
  27. * Data Matrix Code.
  28. *
  29. * @return bytes encoded within the Data Matrix Code or nil if the exact number of bytes expected is not read
  30. */
  31. - (ZXByteArray *)readCodewords;
  32. @end