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 2011 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_OnedCodaBarWriter.h" 24 25#include "fxbarcode/BC_Writer.h" 26#include "fxbarcode/common/BC_CommonBitArray.h" 27#include "fxbarcode/common/BC_CommonBitMatrix.h" 28#include "fxbarcode/oned/BC_OneDimWriter.h" 29#include "third_party/base/stl_util.h" 30 31namespace { 32 33const char kOnedCodaAlphabet[] = {'0', '1', '2', '3', '4', '5', '6', '7', 34 '8', '9', '-', '$', ':', '/', '.', '+', 35 'A', 'B', 'C', 'D', 'T', 'N'}; 36 37const int8_t kOnedCodaCharacterEncoding[] = { 38 0x03, 0x06, 0x09, 0x60, 0x12, 0x42, 0x21, 0x24, 0x30, 0x48, 0x0c, 39 0x18, 0x45, 0x51, 0x54, 0x15, 0x1A, 0x29, 0x0B, 0x0E, 0x1A, 0x29}; 40static_assert(FX_ArraySize(kOnedCodaCharacterEncoding) == 22, "Wrong size"); 41static_assert(FX_ArraySize(kOnedCodaCharacterEncoding) == 42 FX_ArraySize(kOnedCodaAlphabet), 43 "Wrong size"); 44 45const char kStartEndChars[] = {'A', 'B', 'C', 'D', 'T', 'N', '*', 'E', 46 'a', 'b', 'c', 'd', 't', 'n', 'e'}; 47const char kCOntentChars[] = {'0', '1', '2', '3', '4', '5', '6', '7', 48 '8', '9', '-', '$', '/', ':', '+', '.'}; 49 50} // namespace 51 52CBC_OnedCodaBarWriter::CBC_OnedCodaBarWriter() 53 : m_chStart('A'), m_chEnd('B'), m_iWideNarrRatio(2) {} 54 55CBC_OnedCodaBarWriter::~CBC_OnedCodaBarWriter() {} 56 57bool CBC_OnedCodaBarWriter::SetStartChar(char start) { 58 if (!pdfium::ContainsValue(kStartEndChars, start)) 59 return false; 60 61 m_chStart = start; 62 return true; 63} 64 65bool CBC_OnedCodaBarWriter::SetEndChar(char end) { 66 if (!pdfium::ContainsValue(kStartEndChars, end)) 67 return false; 68 69 m_chEnd = end; 70 return true; 71} 72 73void CBC_OnedCodaBarWriter::SetDataLength(int32_t length) { 74 m_iDataLenth = length + 2; 75} 76 77bool CBC_OnedCodaBarWriter::SetTextLocation(BC_TEXT_LOC location) { 78 if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) { 79 return false; 80 } 81 m_locTextLoc = location; 82 return true; 83} 84 85bool CBC_OnedCodaBarWriter::SetWideNarrowRatio(int8_t ratio) { 86 if (ratio < 2 || ratio > 3) 87 return false; 88 89 m_iWideNarrRatio = ratio; 90 return true; 91} 92 93bool CBC_OnedCodaBarWriter::FindChar(wchar_t ch, bool isContent) { 94 if (ch > 0x7F) 95 return false; 96 97 char narrow_ch = static_cast<char>(ch); 98 return pdfium::ContainsValue(kCOntentChars, narrow_ch) || 99 (isContent && pdfium::ContainsValue(kStartEndChars, narrow_ch)); 100} 101 102bool CBC_OnedCodaBarWriter::CheckContentValidity( 103 const WideStringView& contents) { 104 return std::all_of( 105 contents.begin(), contents.end(), 106 [this](const wchar_t& ch) { return this->FindChar(ch, false); }); 107} 108 109WideString CBC_OnedCodaBarWriter::FilterContents( 110 const WideStringView& contents) { 111 WideString filtercontents; 112 wchar_t ch; 113 for (size_t index = 0; index < contents.GetLength(); index++) { 114 ch = contents[index]; 115 if (ch > 175) { 116 index++; 117 continue; 118 } 119 if (!FindChar(ch, true)) 120 continue; 121 filtercontents += ch; 122 } 123 return filtercontents; 124} 125 126uint8_t* CBC_OnedCodaBarWriter::EncodeWithHint(const ByteString& contents, 127 BCFORMAT format, 128 int32_t& outWidth, 129 int32_t& outHeight, 130 int32_t hints) { 131 if (format != BCFORMAT_CODABAR) 132 return nullptr; 133 return CBC_OneDimWriter::EncodeWithHint(contents, format, outWidth, outHeight, 134 hints); 135} 136 137uint8_t* CBC_OnedCodaBarWriter::EncodeImpl(const ByteString& contents, 138 int32_t& outLength) { 139 ByteString data = m_chStart + contents + m_chEnd; 140 m_iContentLen = data.GetLength(); 141 uint8_t* result = FX_Alloc2D(uint8_t, m_iWideNarrRatio * 7, data.GetLength()); 142 char ch; 143 int32_t position = 0; 144 for (size_t index = 0; index < data.GetLength(); index++) { 145 ch = data[index]; 146 if (((ch >= 'a') && (ch <= 'z'))) { 147 ch = ch - 32; 148 } 149 switch (ch) { 150 case 'T': 151 ch = 'A'; 152 break; 153 case 'N': 154 ch = 'B'; 155 break; 156 case '*': 157 ch = 'C'; 158 break; 159 case 'E': 160 ch = 'D'; 161 break; 162 default: 163 break; 164 } 165 int8_t code = 0; 166 for (size_t i = 0; i < FX_ArraySize(kOnedCodaAlphabet); i++) { 167 if (ch == kOnedCodaAlphabet[i]) { 168 code = kOnedCodaCharacterEncoding[i]; 169 break; 170 } 171 } 172 uint8_t color = 1; 173 int32_t counter = 0; 174 int32_t bit = 0; 175 while (bit < 7) { 176 result[position] = color; 177 position++; 178 if (((code >> (6 - bit)) & 1) == 0 || counter == m_iWideNarrRatio - 1) { 179 color = !color; 180 bit++; 181 counter = 0; 182 } else { 183 counter++; 184 } 185 } 186 if (index < data.GetLength() - 1) { 187 result[position] = 0; 188 position++; 189 } 190 } 191 outLength = position; 192 return result; 193} 194 195WideString CBC_OnedCodaBarWriter::encodedContents( 196 const WideStringView& contents) { 197 WideString strStart(static_cast<wchar_t>(m_chStart)); 198 WideString strEnd(static_cast<wchar_t>(m_chEnd)); 199 return strStart + contents + strEnd; 200} 201 202bool CBC_OnedCodaBarWriter::RenderResult(const WideStringView& contents, 203 uint8_t* code, 204 int32_t codeLength) { 205 return CBC_OneDimWriter::RenderResult( 206 encodedContents(contents).AsStringView(), code, codeLength); 207} 208