Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 1 | // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | // Original code is licensed as follows: |
| 7 | /* |
| 8 | * Copyright 2010 ZXing authors |
| 9 | * |
| 10 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 11 | * you may not use this file except in compliance with the License. |
| 12 | * You may obtain a copy of the License at |
| 13 | * |
| 14 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 15 | * |
| 16 | * Unless required by applicable law or agreed to in writing, software |
| 17 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 18 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 19 | * See the License for the specific language governing permissions and |
| 20 | * limitations under the License. |
| 21 | */ |
| 22 | |
| 23 | #include "fxbarcode/oned/BC_OnedCode128Writer.h" |
| 24 | |
| 25 | #include <cctype> |
| 26 | #include <memory> |
| 27 | |
| 28 | #include "fxbarcode/BC_Writer.h" |
| 29 | #include "fxbarcode/oned/BC_OneDimWriter.h" |
| 30 | |
| 31 | namespace { |
| 32 | |
| 33 | constexpr size_t kPatternSize = 7; |
| 34 | |
| 35 | const int8_t CODE_PATTERNS[107][kPatternSize] = { |
| 36 | {2, 1, 2, 2, 2, 2, 0}, {2, 2, 2, 1, 2, 2, 0}, {2, 2, 2, 2, 2, 1, 0}, |
| 37 | {1, 2, 1, 2, 2, 3, 0}, {1, 2, 1, 3, 2, 2, 0}, {1, 3, 1, 2, 2, 2, 0}, |
| 38 | {1, 2, 2, 2, 1, 3, 0}, {1, 2, 2, 3, 1, 2, 0}, {1, 3, 2, 2, 1, 2, 0}, |
| 39 | {2, 2, 1, 2, 1, 3, 0}, {2, 2, 1, 3, 1, 2, 0}, {2, 3, 1, 2, 1, 2, 0}, |
| 40 | {1, 1, 2, 2, 3, 2, 0}, {1, 2, 2, 1, 3, 2, 0}, {1, 2, 2, 2, 3, 1, 0}, |
| 41 | {1, 1, 3, 2, 2, 2, 0}, {1, 2, 3, 1, 2, 2, 0}, {1, 2, 3, 2, 2, 1, 0}, |
| 42 | {2, 2, 3, 2, 1, 1, 0}, {2, 2, 1, 1, 3, 2, 0}, {2, 2, 1, 2, 3, 1, 0}, |
| 43 | {2, 1, 3, 2, 1, 2, 0}, {2, 2, 3, 1, 1, 2, 0}, {3, 1, 2, 1, 3, 1, 0}, |
| 44 | {3, 1, 1, 2, 2, 2, 0}, {3, 2, 1, 1, 2, 2, 0}, {3, 2, 1, 2, 2, 1, 0}, |
| 45 | {3, 1, 2, 2, 1, 2, 0}, {3, 2, 2, 1, 1, 2, 0}, {3, 2, 2, 2, 1, 1, 0}, |
| 46 | {2, 1, 2, 1, 2, 3, 0}, {2, 1, 2, 3, 2, 1, 0}, {2, 3, 2, 1, 2, 1, 0}, |
| 47 | {1, 1, 1, 3, 2, 3, 0}, {1, 3, 1, 1, 2, 3, 0}, {1, 3, 1, 3, 2, 1, 0}, |
| 48 | {1, 1, 2, 3, 1, 3, 0}, {1, 3, 2, 1, 1, 3, 0}, {1, 3, 2, 3, 1, 1, 0}, |
| 49 | {2, 1, 1, 3, 1, 3, 0}, {2, 3, 1, 1, 1, 3, 0}, {2, 3, 1, 3, 1, 1, 0}, |
| 50 | {1, 1, 2, 1, 3, 3, 0}, {1, 1, 2, 3, 3, 1, 0}, {1, 3, 2, 1, 3, 1, 0}, |
| 51 | {1, 1, 3, 1, 2, 3, 0}, {1, 1, 3, 3, 2, 1, 0}, {1, 3, 3, 1, 2, 1, 0}, |
| 52 | {3, 1, 3, 1, 2, 1, 0}, {2, 1, 1, 3, 3, 1, 0}, {2, 3, 1, 1, 3, 1, 0}, |
| 53 | {2, 1, 3, 1, 1, 3, 0}, {2, 1, 3, 3, 1, 1, 0}, {2, 1, 3, 1, 3, 1, 0}, |
| 54 | {3, 1, 1, 1, 2, 3, 0}, {3, 1, 1, 3, 2, 1, 0}, {3, 3, 1, 1, 2, 1, 0}, |
| 55 | {3, 1, 2, 1, 1, 3, 0}, {3, 1, 2, 3, 1, 1, 0}, {3, 3, 2, 1, 1, 1, 0}, |
| 56 | {3, 1, 4, 1, 1, 1, 0}, {2, 2, 1, 4, 1, 1, 0}, {4, 3, 1, 1, 1, 1, 0}, |
| 57 | {1, 1, 1, 2, 2, 4, 0}, {1, 1, 1, 4, 2, 2, 0}, {1, 2, 1, 1, 2, 4, 0}, |
| 58 | {1, 2, 1, 4, 2, 1, 0}, {1, 4, 1, 1, 2, 2, 0}, {1, 4, 1, 2, 2, 1, 0}, |
| 59 | {1, 1, 2, 2, 1, 4, 0}, {1, 1, 2, 4, 1, 2, 0}, {1, 2, 2, 1, 1, 4, 0}, |
| 60 | {1, 2, 2, 4, 1, 1, 0}, {1, 4, 2, 1, 1, 2, 0}, {1, 4, 2, 2, 1, 1, 0}, |
| 61 | {2, 4, 1, 2, 1, 1, 0}, {2, 2, 1, 1, 1, 4, 0}, {4, 1, 3, 1, 1, 1, 0}, |
| 62 | {2, 4, 1, 1, 1, 2, 0}, {1, 3, 4, 1, 1, 1, 0}, {1, 1, 1, 2, 4, 2, 0}, |
| 63 | {1, 2, 1, 1, 4, 2, 0}, {1, 2, 1, 2, 4, 1, 0}, {1, 1, 4, 2, 1, 2, 0}, |
| 64 | {1, 2, 4, 1, 1, 2, 0}, {1, 2, 4, 2, 1, 1, 0}, {4, 1, 1, 2, 1, 2, 0}, |
| 65 | {4, 2, 1, 1, 1, 2, 0}, {4, 2, 1, 2, 1, 1, 0}, {2, 1, 2, 1, 4, 1, 0}, |
| 66 | {2, 1, 4, 1, 2, 1, 0}, {4, 1, 2, 1, 2, 1, 0}, {1, 1, 1, 1, 4, 3, 0}, |
| 67 | {1, 1, 1, 3, 4, 1, 0}, {1, 3, 1, 1, 4, 1, 0}, {1, 1, 4, 1, 1, 3, 0}, |
| 68 | {1, 1, 4, 3, 1, 1, 0}, {4, 1, 1, 1, 1, 3, 0}, {4, 1, 1, 3, 1, 1, 0}, |
| 69 | {1, 1, 3, 1, 4, 1, 0}, {1, 1, 4, 1, 3, 1, 0}, {3, 1, 1, 1, 4, 1, 0}, |
| 70 | {4, 1, 1, 1, 3, 1, 0}, {2, 1, 1, 4, 1, 2, 0}, {2, 1, 1, 2, 1, 4, 0}, |
| 71 | {2, 1, 1, 2, 3, 2, 0}, {2, 3, 3, 1, 1, 1, 2}}; |
| 72 | |
| 73 | const int32_t CODE_START_B = 104; |
| 74 | const int32_t CODE_START_C = 105; |
| 75 | const int32_t CODE_STOP = 106; |
| 76 | |
| 77 | } // namespace |
| 78 | |
| 79 | CBC_OnedCode128Writer::CBC_OnedCode128Writer(BC_TYPE type) |
| 80 | : m_codeFormat(type) { |
| 81 | assert(m_codeFormat == BC_CODE128_B || m_codeFormat == BC_CODE128_C); |
| 82 | } |
| 83 | |
| 84 | CBC_OnedCode128Writer::~CBC_OnedCode128Writer() {} |
| 85 | |
| 86 | bool CBC_OnedCode128Writer::CheckContentValidity( |
| 87 | const WideStringView& contents) { |
| 88 | for (const auto& ch : contents) { |
| 89 | int32_t patternIndex = static_cast<int32_t>(ch); |
| 90 | if (patternIndex < 32 || patternIndex > 126 || patternIndex == 34) |
| 91 | return false; |
| 92 | } |
| 93 | return true; |
| 94 | } |
| 95 | |
| 96 | WideString CBC_OnedCode128Writer::FilterContents( |
| 97 | const WideStringView& contents) { |
| 98 | WideString filterChineseChar; |
| 99 | for (size_t i = 0; i < contents.GetLength(); i++) { |
| 100 | wchar_t ch = contents[i]; |
| 101 | if (ch > 175) { |
| 102 | i++; |
| 103 | continue; |
| 104 | } |
| 105 | filterChineseChar += ch; |
| 106 | } |
| 107 | const wchar_t limit = m_codeFormat == BC_CODE128_B ? 126 : 106; |
| 108 | WideString filtercontents; |
| 109 | for (const auto& ch : filterChineseChar) { |
| 110 | if (ch >= 32 && ch <= limit) |
| 111 | filtercontents += ch; |
| 112 | } |
| 113 | return filtercontents; |
| 114 | } |
| 115 | |
| 116 | bool CBC_OnedCode128Writer::SetTextLocation(BC_TEXT_LOC location) { |
| 117 | if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) { |
| 118 | return false; |
| 119 | } |
| 120 | m_locTextLoc = location; |
| 121 | return true; |
| 122 | } |
| 123 | |
| 124 | uint8_t* CBC_OnedCode128Writer::EncodeWithHint(const ByteString& contents, |
| 125 | BCFORMAT format, |
| 126 | int32_t& outWidth, |
| 127 | int32_t& outHeight, |
| 128 | int32_t hints) { |
| 129 | if (format != BCFORMAT_CODE_128) |
| 130 | return nullptr; |
| 131 | return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight, |
| 132 | hints); |
| 133 | } |
| 134 | |
| 135 | uint8_t* CBC_OnedCode128Writer::EncodeImpl(const ByteString& contents, |
| 136 | int32_t& outLength) { |
| 137 | if (contents.GetLength() < 1 || contents.GetLength() > 80) |
| 138 | return nullptr; |
| 139 | |
| 140 | std::vector<int32_t> patterns; |
| 141 | int32_t checkSum = 0; |
| 142 | if (m_codeFormat == BC_CODE128_B) |
| 143 | checkSum = Encode128B(contents, &patterns); |
| 144 | else |
| 145 | checkSum = Encode128C(contents, &patterns); |
| 146 | |
| 147 | checkSum %= 103; |
| 148 | patterns.push_back(checkSum); |
| 149 | patterns.push_back(CODE_STOP); |
| 150 | m_iContentLen = contents.GetLength() + 3; |
| 151 | int32_t codeWidth = 0; |
| 152 | for (const auto& patternIndex : patterns) { |
| 153 | const int8_t* pattern = CODE_PATTERNS[patternIndex]; |
| 154 | for (size_t i = 0; i < kPatternSize; ++i) |
| 155 | codeWidth += pattern[i]; |
| 156 | } |
| 157 | outLength = codeWidth; |
| 158 | std::unique_ptr<uint8_t, FxFreeDeleter> result(FX_Alloc(uint8_t, outLength)); |
| 159 | int32_t pos = 0; |
| 160 | for (size_t i = 0; i < patterns.size(); ++i) { |
| 161 | const int8_t* pattern = CODE_PATTERNS[patterns[i]]; |
| 162 | int32_t e = BCExceptionNO; |
| 163 | pos += AppendPattern(result.get(), pos, pattern, kPatternSize, 1, e); |
| 164 | if (e != BCExceptionNO) |
| 165 | return nullptr; |
| 166 | } |
| 167 | return result.release(); |
| 168 | } |
| 169 | |
| 170 | // static |
| 171 | int32_t CBC_OnedCode128Writer::Encode128B(const ByteString& contents, |
| 172 | std::vector<int32_t>* patterns) { |
| 173 | int32_t checkWeight = 1; |
| 174 | patterns->push_back(CODE_START_B); |
| 175 | int32_t checkSum = CODE_START_B * checkWeight; |
| 176 | for (size_t position = 0; position < contents.GetLength(); position++) { |
| 177 | int32_t patternIndex = contents[position] - ' '; |
| 178 | patterns->push_back(patternIndex); |
| 179 | checkSum += patternIndex * checkWeight++; |
| 180 | } |
| 181 | return checkSum; |
| 182 | } |
| 183 | |
| 184 | // static |
| 185 | int32_t CBC_OnedCode128Writer::Encode128C(const ByteString& contents, |
| 186 | std::vector<int32_t>* patterns) { |
| 187 | int32_t checkWeight = 1; |
| 188 | patterns->push_back(CODE_START_C); |
| 189 | int32_t checkSum = CODE_START_C * checkWeight; |
| 190 | size_t position = 0; |
| 191 | while (position < contents.GetLength()) { |
| 192 | int32_t patternIndex; |
| 193 | char ch = contents[position]; |
| 194 | if (std::isdigit(ch)) { |
| 195 | patternIndex = FXSYS_atoi( |
| 196 | contents.Mid(position, contents.IsValidIndex(position + 1) ? 2 : 1) |
| 197 | .c_str()); |
| 198 | ++position; |
| 199 | if (position < contents.GetLength() && std::isdigit(contents[position])) |
| 200 | ++position; |
| 201 | } else { |
| 202 | patternIndex = static_cast<int32_t>(ch); |
| 203 | ++position; |
| 204 | } |
| 205 | patterns->push_back(patternIndex); |
| 206 | checkSum += patternIndex * checkWeight++; |
| 207 | } |
| 208 | return checkSum; |
| 209 | } |