C++ port: add decode hints system
[zxing.git] / cpp / core / src / zxing / oned / OneDReader.h
1 /*
2  *  OneDReader.h
3  *  ZXing
4  *
5  *  Created by Lukasz Warchol on 10-01-15.
6  *  Copyright 2010 ZXing authors All rights reserved.
7  *
8  * Licensed under the Apache License, Version 2.0 (the "License");
9  * you may not use this file except in compliance with the License.
10  * You may obtain a copy of the License at
11  *
12  *      http://www.apache.org/licenses/LICENSE-2.0
13  *
14  * Unless required by applicable law or agreed to in writing, software
15  * distributed under the License is distributed on an "AS IS" BASIS,
16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17  * See the License for the specific language governing permissions and
18  * limitations under the License.
19  */
20
21 #pragma once
22
23 #include <zxing/Reader.h>
24 #include <zxing/common/BitArray.h>
25 #include <zxing/BinaryBitmap.h>
26 #include <zxing/DecodeHints.h>
27
28 namespace zxing {
29         namespace oned {
30                 class OneDReader : public Reader {
31                 private:
32                         static const int INTEGER_MATH_SHIFT = 8;
33                         
34                         Ref<Result> doDecode(Ref<BinaryBitmap> image, DecodeHints hints);
35                 public:
36                         static const int PATTERN_MATCH_RESULT_SCALE_FACTOR = 1 << INTEGER_MATH_SHIFT;
37                         
38                         OneDReader();
39                         virtual Ref<Result> decode(Ref<BinaryBitmap> image, DecodeHints hints);
40                         virtual Ref<Result> decodeRow(int rowNumber, Ref<BitArray> row) = 0;
41                         
42                         static unsigned int patternMatchVariance(int counters[], int countersSize, const int pattern[], int maxIndividualVariance);
43                         static void recordPattern(Ref<BitArray> row, int start, int counters[], int countersCount);
44                         virtual ~OneDReader();
45                 };
46         }
47 }