// Copyright 2014 PDFium Authors. All rights reserved. | |
// Use of this source code is governed by a BSD-style license that can be | |
// found in the LICENSE file. | |
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
// Original code is licensed as follows: | |
/* | |
* Copyright 2008 ZXing authors | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
#include "../barcode.h" | |
#include "../BC_Reader.h" | |
#include "../common/BC_CommonBitArray.h" | |
#include "BC_OneDReader.h" | |
#include "BC_OneDimReader.h" | |
#include "BC_OnedEAN8Reader.h" | |
CBC_OnedEAN8Reader::CBC_OnedEAN8Reader() | |
{ | |
} | |
CBC_OnedEAN8Reader::~CBC_OnedEAN8Reader() | |
{ | |
} | |
FX_INT32 CBC_OnedEAN8Reader::DecodeMiddle(CBC_CommonBitArray *row, CFX_Int32Array *startRange, CFX_ByteString &resultResult, FX_INT32 &e) | |
{ | |
CFX_Int32Array counters; | |
counters.Add(0); | |
counters.Add(0); | |
counters.Add(0); | |
counters.Add(0); | |
FX_INT32 end = row->GetSize(); | |
FX_INT32 rowOffset = (*startRange)[1]; | |
FX_INT32 rowOffsetLeft = rowOffset; | |
for (FX_INT32 x = 0; x < 4 && rowOffset < end; x++) { | |
FX_INT32 bestMatch = DecodeDigit(row, &counters, rowOffset, &(CBC_OneDimReader::L_PATTERNS[0][0]), 10, e); | |
BC_EXCEPTION_CHECK_ReturnValue(e, 0); | |
resultResult += (FX_CHAR) ('0' + bestMatch); | |
for (FX_INT32 i = 0; i < counters.GetSize(); i++) { | |
rowOffset += counters[i]; | |
} | |
} | |
FX_INT32 RowOffsetLen = (rowOffset - rowOffsetLeft) / 4; | |
CFX_Int32Array result; | |
result.Add(CBC_OneDimReader::MIDDLE_PATTERN[0]); | |
result.Add(CBC_OneDimReader::MIDDLE_PATTERN[1]); | |
result.Add(CBC_OneDimReader::MIDDLE_PATTERN[2]); | |
result.Add(CBC_OneDimReader::MIDDLE_PATTERN[3]); | |
result.Add(CBC_OneDimReader::MIDDLE_PATTERN[4]); | |
CFX_Int32Array *middleRange = FindGuardPattern(row, rowOffset, TRUE, &result, e); | |
BC_EXCEPTION_CHECK_ReturnValue(e, 0); | |
FX_INT32 rowOffsetMid = rowOffset; | |
rowOffset = (*middleRange)[1]; | |
if((rowOffset - rowOffsetMid) > RowOffsetLen) { | |
e = BCExceptionNotFound; | |
BC_EXCEPTION_CHECK_ReturnValue(e, 0); | |
} | |
if(middleRange != NULL) { | |
delete middleRange; | |
middleRange = NULL; | |
} | |
for (FX_INT32 y = 0; y < 4 && rowOffset < end; y++) { | |
FX_INT32 bestMatch = DecodeDigit(row, & counters, rowOffset, &(CBC_OneDimReader::L_PATTERNS[0][0]), 10, e); | |
BC_EXCEPTION_CHECK_ReturnValue(e, 0); | |
resultResult += (FX_CHAR) ('0' + bestMatch); | |
for (FX_INT32 i = 0; i < counters.GetSize(); i++) { | |
rowOffset += counters[i]; | |
} | |
} | |
return rowOffset; | |
} |