5 * Created by Lukasz Warchol on 10-01-25.
6 * Copyright 2010 ZXing authors All rights reserved.
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
12 * http://www.apache.org/licenses/LICENSE-2.0
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.
21 #include "EAN8Reader.h"
22 #include <zxing/ReaderException.h>
27 EAN8Reader::EAN8Reader(){ }
29 int EAN8Reader::decodeMiddle(Ref<BitArray> row, int startRange[], int startRangeLen, std::string& resultString){
30 const int countersLen = 4;
31 int counters[countersLen] = { 0, 0, 0, 0 };
33 int end = row->getSize();
34 int rowOffset = startRange[1];
36 for (int x = 0; x < 4 && rowOffset < end; x++) {
37 int bestMatch = decodeDigit(row, counters, countersLen, rowOffset, UPC_EAN_PATTERNS_L_PATTERNS);
38 resultString.append(1, (char) ('0' + bestMatch));
39 for (int i = 0; i < countersLen; i++) {
40 rowOffset += counters[i];
46 middleRange = findGuardPattern(row, rowOffset, true, (int*)getMIDDLE_PATTERN(), getMIDDLE_PATTERN_LEN());
47 rowOffset = middleRange[1];
49 for (int x = 0; x < 4 && rowOffset < end; x++) {
50 int bestMatch = decodeDigit(row, counters, countersLen, rowOffset, UPC_EAN_PATTERNS_L_PATTERNS);
51 resultString.append(1, (char) ('0' + bestMatch));
52 for (int i = 0; i < countersLen; i++) {
53 rowOffset += counters[i];
57 delete [] middleRange;
59 } catch (ReaderException const& re) {
60 delete [] middleRange;
65 BarcodeFormat EAN8Reader::getBarcodeFormat(){
66 return BarcodeFormat_EAN_8;