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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
// Original code is licensed as follows:
/*
* Copyright 2010 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 "fxbarcode/oned/BC_OnedCode128Writer.h"
#include <cctype>
#include <memory>
#include "fxbarcode/BC_Writer.h"
#include "fxbarcode/oned/BC_OneDimWriter.h"
namespace {
constexpr size_t kPatternSize = 7;
const int8_t CODE_PATTERNS[107][kPatternSize] = {
{2, 1, 2, 2, 2, 2, 0}, {2, 2, 2, 1, 2, 2, 0}, {2, 2, 2, 2, 2, 1, 0},
{1, 2, 1, 2, 2, 3, 0}, {1, 2, 1, 3, 2, 2, 0}, {1, 3, 1, 2, 2, 2, 0},
{1, 2, 2, 2, 1, 3, 0}, {1, 2, 2, 3, 1, 2, 0}, {1, 3, 2, 2, 1, 2, 0},
{2, 2, 1, 2, 1, 3, 0}, {2, 2, 1, 3, 1, 2, 0}, {2, 3, 1, 2, 1, 2, 0},
{1, 1, 2, 2, 3, 2, 0}, {1, 2, 2, 1, 3, 2, 0}, {1, 2, 2, 2, 3, 1, 0},
{1, 1, 3, 2, 2, 2, 0}, {1, 2, 3, 1, 2, 2, 0}, {1, 2, 3, 2, 2, 1, 0},
{2, 2, 3, 2, 1, 1, 0}, {2, 2, 1, 1, 3, 2, 0}, {2, 2, 1, 2, 3, 1, 0},
{2, 1, 3, 2, 1, 2, 0}, {2, 2, 3, 1, 1, 2, 0}, {3, 1, 2, 1, 3, 1, 0},
{3, 1, 1, 2, 2, 2, 0}, {3, 2, 1, 1, 2, 2, 0}, {3, 2, 1, 2, 2, 1, 0},
{3, 1, 2, 2, 1, 2, 0}, {3, 2, 2, 1, 1, 2, 0}, {3, 2, 2, 2, 1, 1, 0},
{2, 1, 2, 1, 2, 3, 0}, {2, 1, 2, 3, 2, 1, 0}, {2, 3, 2, 1, 2, 1, 0},
{1, 1, 1, 3, 2, 3, 0}, {1, 3, 1, 1, 2, 3, 0}, {1, 3, 1, 3, 2, 1, 0},
{1, 1, 2, 3, 1, 3, 0}, {1, 3, 2, 1, 1, 3, 0}, {1, 3, 2, 3, 1, 1, 0},
{2, 1, 1, 3, 1, 3, 0}, {2, 3, 1, 1, 1, 3, 0}, {2, 3, 1, 3, 1, 1, 0},
{1, 1, 2, 1, 3, 3, 0}, {1, 1, 2, 3, 3, 1, 0}, {1, 3, 2, 1, 3, 1, 0},
{1, 1, 3, 1, 2, 3, 0}, {1, 1, 3, 3, 2, 1, 0}, {1, 3, 3, 1, 2, 1, 0},
{3, 1, 3, 1, 2, 1, 0}, {2, 1, 1, 3, 3, 1, 0}, {2, 3, 1, 1, 3, 1, 0},
{2, 1, 3, 1, 1, 3, 0}, {2, 1, 3, 3, 1, 1, 0}, {2, 1, 3, 1, 3, 1, 0},
{3, 1, 1, 1, 2, 3, 0}, {3, 1, 1, 3, 2, 1, 0}, {3, 3, 1, 1, 2, 1, 0},
{3, 1, 2, 1, 1, 3, 0}, {3, 1, 2, 3, 1, 1, 0}, {3, 3, 2, 1, 1, 1, 0},
{3, 1, 4, 1, 1, 1, 0}, {2, 2, 1, 4, 1, 1, 0}, {4, 3, 1, 1, 1, 1, 0},
{1, 1, 1, 2, 2, 4, 0}, {1, 1, 1, 4, 2, 2, 0}, {1, 2, 1, 1, 2, 4, 0},
{1, 2, 1, 4, 2, 1, 0}, {1, 4, 1, 1, 2, 2, 0}, {1, 4, 1, 2, 2, 1, 0},
{1, 1, 2, 2, 1, 4, 0}, {1, 1, 2, 4, 1, 2, 0}, {1, 2, 2, 1, 1, 4, 0},
{1, 2, 2, 4, 1, 1, 0}, {1, 4, 2, 1, 1, 2, 0}, {1, 4, 2, 2, 1, 1, 0},
{2, 4, 1, 2, 1, 1, 0}, {2, 2, 1, 1, 1, 4, 0}, {4, 1, 3, 1, 1, 1, 0},
{2, 4, 1, 1, 1, 2, 0}, {1, 3, 4, 1, 1, 1, 0}, {1, 1, 1, 2, 4, 2, 0},
{1, 2, 1, 1, 4, 2, 0}, {1, 2, 1, 2, 4, 1, 0}, {1, 1, 4, 2, 1, 2, 0},
{1, 2, 4, 1, 1, 2, 0}, {1, 2, 4, 2, 1, 1, 0}, {4, 1, 1, 2, 1, 2, 0},
{4, 2, 1, 1, 1, 2, 0}, {4, 2, 1, 2, 1, 1, 0}, {2, 1, 2, 1, 4, 1, 0},
{2, 1, 4, 1, 2, 1, 0}, {4, 1, 2, 1, 2, 1, 0}, {1, 1, 1, 1, 4, 3, 0},
{1, 1, 1, 3, 4, 1, 0}, {1, 3, 1, 1, 4, 1, 0}, {1, 1, 4, 1, 1, 3, 0},
{1, 1, 4, 3, 1, 1, 0}, {4, 1, 1, 1, 1, 3, 0}, {4, 1, 1, 3, 1, 1, 0},
{1, 1, 3, 1, 4, 1, 0}, {1, 1, 4, 1, 3, 1, 0}, {3, 1, 1, 1, 4, 1, 0},
{4, 1, 1, 1, 3, 1, 0}, {2, 1, 1, 4, 1, 2, 0}, {2, 1, 1, 2, 1, 4, 0},
{2, 1, 1, 2, 3, 2, 0}, {2, 3, 3, 1, 1, 1, 2}};
const int32_t CODE_START_B = 104;
const int32_t CODE_START_C = 105;
const int32_t CODE_STOP = 106;
} // namespace
CBC_OnedCode128Writer::CBC_OnedCode128Writer(BC_TYPE type)
: m_codeFormat(type) {
assert(m_codeFormat == BC_CODE128_B || m_codeFormat == BC_CODE128_C);
}
CBC_OnedCode128Writer::~CBC_OnedCode128Writer() = default;
bool CBC_OnedCode128Writer::CheckContentValidity(
const WideStringView& contents) {
for (const auto& ch : contents) {
int32_t patternIndex = static_cast<int32_t>(ch);
if (patternIndex < 32 || patternIndex > 126 || patternIndex == 34)
return false;
}
return true;
}
WideString CBC_OnedCode128Writer::FilterContents(
const WideStringView& contents) {
const wchar_t limit = m_codeFormat == BC_CODE128_B ? 126 : 106;
WideString filtered;
filtered.Reserve(contents.GetLength());
for (size_t i = 0; i < contents.GetLength(); i++) {
wchar_t ch = contents[i];
if (ch > 175) {
i++;
continue;
}
if (ch >= 32 && ch <= limit)
filtered += ch;
}
return filtered;
}
bool CBC_OnedCode128Writer::SetTextLocation(BC_TEXT_LOC location) {
if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) {
return false;
}
m_locTextLoc = location;
return true;
}
uint8_t* CBC_OnedCode128Writer::EncodeWithHint(const ByteString& contents,
BCFORMAT format,
int32_t& outWidth,
int32_t& outHeight,
int32_t hints) {
if (format != BCFORMAT_CODE_128)
return nullptr;
return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight,
hints);
}
uint8_t* CBC_OnedCode128Writer::EncodeImpl(const ByteString& contents,
int32_t& outLength) {
if (contents.GetLength() < 1 || contents.GetLength() > 80)
return nullptr;
std::vector<int32_t> patterns;
int32_t checkSum = 0;
if (m_codeFormat == BC_CODE128_B)
checkSum = Encode128B(contents, &patterns);
else
checkSum = Encode128C(contents, &patterns);
checkSum %= 103;
patterns.push_back(checkSum);
patterns.push_back(CODE_STOP);
m_iContentLen = contents.GetLength() + 3;
int32_t codeWidth = 0;
for (const auto& patternIndex : patterns) {
const int8_t* pattern = CODE_PATTERNS[patternIndex];
for (size_t i = 0; i < kPatternSize; ++i)
codeWidth += pattern[i];
}
outLength = codeWidth;
std::unique_ptr<uint8_t, FxFreeDeleter> result(FX_Alloc(uint8_t, outLength));
int32_t pos = 0;
for (size_t i = 0; i < patterns.size(); ++i) {
const int8_t* pattern = CODE_PATTERNS[patterns[i]];
int32_t e = BCExceptionNO;
pos += AppendPattern(result.get(), pos, pattern, kPatternSize, 1, e);
if (e != BCExceptionNO)
return nullptr;
}
return result.release();
}
// static
int32_t CBC_OnedCode128Writer::Encode128B(const ByteString& contents,
std::vector<int32_t>* patterns) {
int32_t checkWeight = 1;
patterns->push_back(CODE_START_B);
int32_t checkSum = CODE_START_B * checkWeight;
for (size_t position = 0; position < contents.GetLength(); position++) {
int32_t patternIndex = contents[position] - ' ';
patterns->push_back(patternIndex);
checkSum += patternIndex * checkWeight++;
}
return checkSum;
}
// static
int32_t CBC_OnedCode128Writer::Encode128C(const ByteString& contents,
std::vector<int32_t>* patterns) {
int32_t checkWeight = 1;
patterns->push_back(CODE_START_C);
int32_t checkSum = CODE_START_C * checkWeight;
size_t position = 0;
while (position < contents.GetLength()) {
int32_t patternIndex;
char ch = contents[position];
if (std::isdigit(ch)) {
patternIndex = FXSYS_atoi(
contents.Mid(position, contents.IsValidIndex(position + 1) ? 2 : 1)
.c_str());
++position;
if (position < contents.GetLength() && std::isdigit(contents[position]))
++position;
} else {
patternIndex = static_cast<int32_t>(ch);
++position;
}
patterns->push_back(patternIndex);
checkSum += patternIndex * checkWeight++;
}
return checkSum;
}
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