| // 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 "core/fxcrt/fx_memory_wrappers.h" |
| #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(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(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]]; |
| pos += AppendPattern(result.get(), pos, pattern, kPatternSize, true); |
| } |
| 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.Substr(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; |
| } |