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204 lines
7.9 KiB
204 lines
7.9 KiB
// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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// Original code is licensed as follows:
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/*
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* Copyright 2010 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "fxbarcode/oned/BC_OnedCode128Writer.h"
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#include <cctype>
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#include <memory>
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#include "core/fxcrt/fx_memory_wrappers.h"
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#include "fxbarcode/BC_Writer.h"
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#include "fxbarcode/oned/BC_OneDimWriter.h"
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namespace {
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constexpr size_t kPatternSize = 7;
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const int8_t CODE_PATTERNS[107][kPatternSize] = {
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{2, 1, 2, 2, 2, 2, 0}, {2, 2, 2, 1, 2, 2, 0}, {2, 2, 2, 2, 2, 1, 0},
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{1, 2, 1, 2, 2, 3, 0}, {1, 2, 1, 3, 2, 2, 0}, {1, 3, 1, 2, 2, 2, 0},
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{1, 2, 2, 2, 1, 3, 0}, {1, 2, 2, 3, 1, 2, 0}, {1, 3, 2, 2, 1, 2, 0},
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{2, 2, 1, 2, 1, 3, 0}, {2, 2, 1, 3, 1, 2, 0}, {2, 3, 1, 2, 1, 2, 0},
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{1, 1, 2, 2, 3, 2, 0}, {1, 2, 2, 1, 3, 2, 0}, {1, 2, 2, 2, 3, 1, 0},
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{1, 1, 3, 2, 2, 2, 0}, {1, 2, 3, 1, 2, 2, 0}, {1, 2, 3, 2, 2, 1, 0},
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{2, 2, 3, 2, 1, 1, 0}, {2, 2, 1, 1, 3, 2, 0}, {2, 2, 1, 2, 3, 1, 0},
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{2, 1, 3, 2, 1, 2, 0}, {2, 2, 3, 1, 1, 2, 0}, {3, 1, 2, 1, 3, 1, 0},
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{3, 1, 1, 2, 2, 2, 0}, {3, 2, 1, 1, 2, 2, 0}, {3, 2, 1, 2, 2, 1, 0},
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{3, 1, 2, 2, 1, 2, 0}, {3, 2, 2, 1, 1, 2, 0}, {3, 2, 2, 2, 1, 1, 0},
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{2, 1, 2, 1, 2, 3, 0}, {2, 1, 2, 3, 2, 1, 0}, {2, 3, 2, 1, 2, 1, 0},
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{1, 1, 1, 3, 2, 3, 0}, {1, 3, 1, 1, 2, 3, 0}, {1, 3, 1, 3, 2, 1, 0},
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{1, 1, 2, 3, 1, 3, 0}, {1, 3, 2, 1, 1, 3, 0}, {1, 3, 2, 3, 1, 1, 0},
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{2, 1, 1, 3, 1, 3, 0}, {2, 3, 1, 1, 1, 3, 0}, {2, 3, 1, 3, 1, 1, 0},
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{1, 1, 2, 1, 3, 3, 0}, {1, 1, 2, 3, 3, 1, 0}, {1, 3, 2, 1, 3, 1, 0},
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{1, 1, 3, 1, 2, 3, 0}, {1, 1, 3, 3, 2, 1, 0}, {1, 3, 3, 1, 2, 1, 0},
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{3, 1, 3, 1, 2, 1, 0}, {2, 1, 1, 3, 3, 1, 0}, {2, 3, 1, 1, 3, 1, 0},
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{2, 1, 3, 1, 1, 3, 0}, {2, 1, 3, 3, 1, 1, 0}, {2, 1, 3, 1, 3, 1, 0},
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{3, 1, 1, 1, 2, 3, 0}, {3, 1, 1, 3, 2, 1, 0}, {3, 3, 1, 1, 2, 1, 0},
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{3, 1, 2, 1, 1, 3, 0}, {3, 1, 2, 3, 1, 1, 0}, {3, 3, 2, 1, 1, 1, 0},
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{3, 1, 4, 1, 1, 1, 0}, {2, 2, 1, 4, 1, 1, 0}, {4, 3, 1, 1, 1, 1, 0},
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{1, 1, 1, 2, 2, 4, 0}, {1, 1, 1, 4, 2, 2, 0}, {1, 2, 1, 1, 2, 4, 0},
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{1, 2, 1, 4, 2, 1, 0}, {1, 4, 1, 1, 2, 2, 0}, {1, 4, 1, 2, 2, 1, 0},
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{1, 1, 2, 2, 1, 4, 0}, {1, 1, 2, 4, 1, 2, 0}, {1, 2, 2, 1, 1, 4, 0},
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{1, 2, 2, 4, 1, 1, 0}, {1, 4, 2, 1, 1, 2, 0}, {1, 4, 2, 2, 1, 1, 0},
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{2, 4, 1, 2, 1, 1, 0}, {2, 2, 1, 1, 1, 4, 0}, {4, 1, 3, 1, 1, 1, 0},
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{2, 4, 1, 1, 1, 2, 0}, {1, 3, 4, 1, 1, 1, 0}, {1, 1, 1, 2, 4, 2, 0},
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{1, 2, 1, 1, 4, 2, 0}, {1, 2, 1, 2, 4, 1, 0}, {1, 1, 4, 2, 1, 2, 0},
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{1, 2, 4, 1, 1, 2, 0}, {1, 2, 4, 2, 1, 1, 0}, {4, 1, 1, 2, 1, 2, 0},
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{4, 2, 1, 1, 1, 2, 0}, {4, 2, 1, 2, 1, 1, 0}, {2, 1, 2, 1, 4, 1, 0},
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{2, 1, 4, 1, 2, 1, 0}, {4, 1, 2, 1, 2, 1, 0}, {1, 1, 1, 1, 4, 3, 0},
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{1, 1, 1, 3, 4, 1, 0}, {1, 3, 1, 1, 4, 1, 0}, {1, 1, 4, 1, 1, 3, 0},
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{1, 1, 4, 3, 1, 1, 0}, {4, 1, 1, 1, 1, 3, 0}, {4, 1, 1, 3, 1, 1, 0},
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{1, 1, 3, 1, 4, 1, 0}, {1, 1, 4, 1, 3, 1, 0}, {3, 1, 1, 1, 4, 1, 0},
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{4, 1, 1, 1, 3, 1, 0}, {2, 1, 1, 4, 1, 2, 0}, {2, 1, 1, 2, 1, 4, 0},
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{2, 1, 1, 2, 3, 2, 0}, {2, 3, 3, 1, 1, 1, 2}};
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const int32_t CODE_START_B = 104;
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const int32_t CODE_START_C = 105;
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const int32_t CODE_STOP = 106;
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} // namespace
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CBC_OnedCode128Writer::CBC_OnedCode128Writer(BC_TYPE type)
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: m_codeFormat(type) {
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ASSERT(m_codeFormat == BC_CODE128_B || m_codeFormat == BC_CODE128_C);
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}
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CBC_OnedCode128Writer::~CBC_OnedCode128Writer() = default;
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bool CBC_OnedCode128Writer::CheckContentValidity(WideStringView contents) {
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for (const auto& ch : contents) {
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int32_t patternIndex = static_cast<int32_t>(ch);
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if (patternIndex < 32 || patternIndex > 126 || patternIndex == 34)
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return false;
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}
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return true;
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}
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WideString CBC_OnedCode128Writer::FilterContents(WideStringView contents) {
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const wchar_t limit = m_codeFormat == BC_CODE128_B ? 126 : 106;
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WideString filtered;
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filtered.Reserve(contents.GetLength());
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for (size_t i = 0; i < contents.GetLength(); i++) {
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wchar_t ch = contents[i];
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if (ch > 175) {
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i++;
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continue;
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}
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if (ch >= 32 && ch <= limit)
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filtered += ch;
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}
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return filtered;
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}
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bool CBC_OnedCode128Writer::SetTextLocation(BC_TEXT_LOC location) {
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if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) {
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return false;
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}
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m_locTextLoc = location;
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return true;
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}
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uint8_t* CBC_OnedCode128Writer::EncodeWithHint(const ByteString& contents,
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BCFORMAT format,
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int32_t& outWidth,
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int32_t& outHeight,
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int32_t hints) {
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if (format != BCFORMAT_CODE_128)
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return nullptr;
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return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight,
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hints);
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}
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uint8_t* CBC_OnedCode128Writer::EncodeImpl(const ByteString& contents,
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int32_t& outLength) {
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if (contents.GetLength() < 1 || contents.GetLength() > 80)
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return nullptr;
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std::vector<int32_t> patterns;
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int32_t checkSum = 0;
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if (m_codeFormat == BC_CODE128_B)
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checkSum = Encode128B(contents, &patterns);
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else
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checkSum = Encode128C(contents, &patterns);
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checkSum %= 103;
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patterns.push_back(checkSum);
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patterns.push_back(CODE_STOP);
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m_iContentLen = contents.GetLength() + 3;
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int32_t codeWidth = 0;
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for (const auto& patternIndex : patterns) {
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const int8_t* pattern = CODE_PATTERNS[patternIndex];
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for (size_t i = 0; i < kPatternSize; ++i)
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codeWidth += pattern[i];
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}
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outLength = codeWidth;
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std::unique_ptr<uint8_t, FxFreeDeleter> result(FX_Alloc(uint8_t, outLength));
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int32_t pos = 0;
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for (size_t i = 0; i < patterns.size(); ++i) {
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const int8_t* pattern = CODE_PATTERNS[patterns[i]];
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pos += AppendPattern(result.get(), pos, pattern, kPatternSize, true);
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}
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return result.release();
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}
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// static
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int32_t CBC_OnedCode128Writer::Encode128B(const ByteString& contents,
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std::vector<int32_t>* patterns) {
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int32_t checkWeight = 1;
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patterns->push_back(CODE_START_B);
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int32_t checkSum = CODE_START_B * checkWeight;
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for (size_t position = 0; position < contents.GetLength(); position++) {
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int32_t patternIndex = contents[position] - ' ';
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patterns->push_back(patternIndex);
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checkSum += patternIndex * checkWeight++;
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}
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return checkSum;
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}
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// static
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int32_t CBC_OnedCode128Writer::Encode128C(const ByteString& contents,
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std::vector<int32_t>* patterns) {
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int32_t checkWeight = 1;
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patterns->push_back(CODE_START_C);
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int32_t checkSum = CODE_START_C * checkWeight;
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size_t position = 0;
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while (position < contents.GetLength()) {
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int32_t patternIndex;
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char ch = contents[position];
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if (std::isdigit(ch)) {
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patternIndex = FXSYS_atoi(
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contents.Substr(position, contents.IsValidIndex(position + 1) ? 2 : 1)
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.c_str());
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++position;
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if (position < contents.GetLength() && std::isdigit(contents[position]))
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++position;
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} else {
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patternIndex = static_cast<int32_t>(ch);
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++position;
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}
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patterns->push_back(patternIndex);
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checkSum += patternIndex * checkWeight++;
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}
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return checkSum;
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}
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