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// 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
#include "barcode.h"
#include "include/BC_Reader.h"
#include "include/BC_OneDReader.h"
#include "include/BC_OneDimReader.h"
#include "include/BC_CommonBitArray.h"
#include "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;
}
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