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 "xfa/fxbarcode/BC_Writer.h" 24 #include "xfa/fxbarcode/common/BC_CommonBitArray.h" 25 #include "xfa/fxbarcode/common/BC_CommonBitMatrix.h" 26 #include "xfa/fxbarcode/oned/BC_OneDimWriter.h" 27 #include "xfa/fxbarcode/oned/BC_OnedCodaBarWriter.h" 28 29 namespace { 30 31 const FX_CHAR ALPHABET_STRING[] = "0123456789-$:/.+ABCDTN"; 32 33 const int32_t CHARACTER_ENCODINGS[22] = { 34 0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 35 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 36 0x01A, 0x029, 0x00B, 0x00E, 0x01A, 0x029}; 37 38 const FX_CHAR START_END_CHARS[] = {'A', 'B', 'C', 'D', 'T', 'N', '*', 'E', 39 'a', 'b', 'c', 'd', 't', 'n', 'e'}; 40 const FX_CHAR CONTENT_CHARS[] = {'0', '1', '2', '3', '4', '5', '6', '7', 41 '8', '9', '-', '$', '/', ':', '+', '.'}; 42 43 } // namespace 44 45 CBC_OnedCodaBarWriter::CBC_OnedCodaBarWriter() { 46 m_chStart = 'A'; 47 m_chEnd = 'B'; 48 m_iWideNarrRatio = 2; 49 } 50 CBC_OnedCodaBarWriter::~CBC_OnedCodaBarWriter() {} 51 bool CBC_OnedCodaBarWriter::SetStartChar(FX_CHAR start) { 52 for (size_t i = 0; i < FX_ArraySize(START_END_CHARS); ++i) { 53 if (START_END_CHARS[i] == start) { 54 m_chStart = start; 55 return true; 56 } 57 } 58 return false; 59 } 60 61 bool CBC_OnedCodaBarWriter::SetEndChar(FX_CHAR end) { 62 for (size_t i = 0; i < FX_ArraySize(START_END_CHARS); ++i) { 63 if (START_END_CHARS[i] == end) { 64 m_chEnd = end; 65 return true; 66 } 67 } 68 return false; 69 } 70 void CBC_OnedCodaBarWriter::SetDataLength(int32_t length) { 71 m_iDataLenth = length + 2; 72 } 73 bool CBC_OnedCodaBarWriter::SetTextLocation(BC_TEXT_LOC location) { 74 if (location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) { 75 return false; 76 } 77 m_locTextLoc = location; 78 return true; 79 } 80 bool CBC_OnedCodaBarWriter::SetWideNarrowRatio(int32_t ratio) { 81 if (ratio < 2 || ratio > 3) { 82 return false; 83 } 84 m_iWideNarrRatio = ratio; 85 return true; 86 } 87 bool CBC_OnedCodaBarWriter::FindChar(FX_WCHAR ch, bool isContent) { 88 if (isContent) { 89 for (size_t i = 0; i < FX_ArraySize(CONTENT_CHARS); ++i) { 90 if (ch == (FX_WCHAR)CONTENT_CHARS[i]) { 91 return true; 92 } 93 } 94 for (size_t j = 0; j < FX_ArraySize(START_END_CHARS); ++j) { 95 if (ch == (FX_WCHAR)START_END_CHARS[j]) { 96 return true; 97 } 98 } 99 return false; 100 } else { 101 for (size_t i = 0; i < FX_ArraySize(CONTENT_CHARS); ++i) { 102 if (ch == (FX_WCHAR)CONTENT_CHARS[i]) { 103 return true; 104 } 105 } 106 return false; 107 } 108 } 109 bool CBC_OnedCodaBarWriter::CheckContentValidity( 110 const CFX_WideStringC& contents) { 111 FX_WCHAR ch; 112 int32_t index = 0; 113 for (index = 0; index < contents.GetLength(); index++) { 114 ch = contents.GetAt(index); 115 if (FindChar(ch, false)) { 116 continue; 117 } else { 118 return false; 119 } 120 } 121 return true; 122 } 123 CFX_WideString CBC_OnedCodaBarWriter::FilterContents( 124 const CFX_WideStringC& contents) { 125 CFX_WideString filtercontents; 126 FX_WCHAR ch; 127 for (int32_t index = 0; index < contents.GetLength(); index++) { 128 ch = contents.GetAt(index); 129 if (ch > 175) { 130 index++; 131 continue; 132 } 133 if (FindChar(ch, true)) { 134 filtercontents += ch; 135 } else { 136 continue; 137 } 138 } 139 return filtercontents; 140 } 141 uint8_t* CBC_OnedCodaBarWriter::Encode(const CFX_ByteString& contents, 142 BCFORMAT format, 143 int32_t& outWidth, 144 int32_t& outHeight, 145 int32_t& e) { 146 uint8_t* ret = Encode(contents, format, outWidth, outHeight, 0, e); 147 if (e != BCExceptionNO) 148 return nullptr; 149 return ret; 150 } 151 uint8_t* CBC_OnedCodaBarWriter::Encode(const CFX_ByteString& contents, 152 BCFORMAT format, 153 int32_t& outWidth, 154 int32_t& outHeight, 155 int32_t hints, 156 int32_t& e) { 157 if (format != BCFORMAT_CODABAR) { 158 e = BCExceptionOnlyEncodeCODEBAR; 159 return nullptr; 160 } 161 uint8_t* ret = 162 CBC_OneDimWriter::Encode(contents, format, outWidth, outHeight, hints, e); 163 if (e != BCExceptionNO) 164 return nullptr; 165 return ret; 166 } 167 uint8_t* CBC_OnedCodaBarWriter::Encode(const CFX_ByteString& contents, 168 int32_t& outLength, 169 int32_t& e) { 170 CFX_ByteString data = m_chStart + contents + m_chEnd; 171 m_iContentLen = data.GetLength(); 172 uint8_t* result = FX_Alloc2D(uint8_t, m_iWideNarrRatio * 7, data.GetLength()); 173 FX_CHAR ch; 174 int32_t position = 0; 175 for (int32_t index = 0; index < data.GetLength(); index++) { 176 ch = data.GetAt(index); 177 if (((ch >= 'a') && (ch <= 'z'))) { 178 ch = ch - 32; 179 } 180 switch (ch) { 181 case 'T': 182 ch = 'A'; 183 break; 184 case 'N': 185 ch = 'B'; 186 break; 187 case '*': 188 ch = 'C'; 189 break; 190 case 'E': 191 ch = 'D'; 192 break; 193 default: 194 break; 195 } 196 int32_t code = 0; 197 int32_t len = (int32_t)strlen(ALPHABET_STRING); 198 for (int32_t i = 0; i < len; i++) { 199 if (ch == ALPHABET_STRING[i]) { 200 code = CHARACTER_ENCODINGS[i]; 201 break; 202 } 203 } 204 uint8_t color = 1; 205 int32_t counter = 0; 206 int32_t bit = 0; 207 while (bit < 7) { 208 result[position] = color; 209 position++; 210 if (((code >> (6 - bit)) & 1) == 0 || counter == m_iWideNarrRatio - 1) { 211 color = !color; 212 bit++; 213 counter = 0; 214 } else { 215 counter++; 216 } 217 } 218 if (index < data.GetLength() - 1) { 219 result[position] = 0; 220 position++; 221 } 222 } 223 outLength = position; 224 return result; 225 } 226 CFX_WideString CBC_OnedCodaBarWriter::encodedContents( 227 const CFX_WideStringC& contents) { 228 CFX_WideString strStart(m_chStart); 229 CFX_WideString strEnd(m_chEnd); 230 return strStart + contents + strEnd; 231 } 232 void CBC_OnedCodaBarWriter::RenderResult(const CFX_WideStringC& contents, 233 uint8_t* code, 234 int32_t codeLength, 235 bool isDevice, 236 int32_t& e) { 237 CBC_OneDimWriter::RenderResult(encodedContents(contents).AsStringC(), code, 238 codeLength, isDevice, e); 239 } 240