// 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 "../barcode.h" #include "../BC_Writer.h" #include "../BC_Reader.h" #include "../common/BC_CommonBitMatrix.h" #include "BC_OneDReader.h" #include "BC_OneDimWriter.h" #include "BC_OnedCode39Reader.h" #include "BC_OnedCode39Writer.h" CBC_OnedCode39Writer::CBC_OnedCode39Writer() { m_extendedMode = FALSE; m_iWideNarrRatio = 3; } CBC_OnedCode39Writer::CBC_OnedCode39Writer(FX_BOOL extendedMode) { m_iWideNarrRatio = 3; m_extendedMode = extendedMode; } CBC_OnedCode39Writer::~CBC_OnedCode39Writer() { } FX_BOOL CBC_OnedCode39Writer::CheckContentValidity(FX_WSTR contents) { if (m_extendedMode) { return CheckExtendedContentValidity(contents); } for(FX_INT32 i = 0; i < contents.GetLength(); i++) { FX_WCHAR ch = contents.GetAt(i); if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') || (ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') || ch == (FX_WCHAR)'-' || ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' || ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' || ch == (FX_WCHAR)'%') { continue; } return FALSE; } return TRUE; } FX_BOOL CBC_OnedCode39Writer::CheckExtendedContentValidity(FX_WSTR contents) { for(FX_INT32 i = 0; i < contents.GetLength(); i++) { FX_WCHAR ch = contents.GetAt(i); if (ch > 127) { return FALSE; } } return TRUE; } CFX_WideString CBC_OnedCode39Writer::FilterContents(FX_WSTR contents) { if (m_extendedMode) { return FilterExtendedContents(contents); } CFX_WideString filtercontents; for(FX_INT32 i = 0; i < contents.GetLength(); i++) { FX_WCHAR ch = contents.GetAt(i); if ( ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1) ) { continue; } if(ch > 175) { i++; continue; } else { ch = Upper(ch); } if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') || (ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') || ch == (FX_WCHAR)'-' || ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' || ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' || ch == (FX_WCHAR)'%') { filtercontents += ch; } } return filtercontents; } CFX_WideString CBC_OnedCode39Writer::FilterExtendedContents(FX_WSTR contents) { CFX_WideString filtercontents; for(FX_INT32 i = 0; i < contents.GetLength(); i++) { FX_WCHAR ch = contents.GetAt(i); if ( ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1) ) { continue; } if(ch > 175) { i++; continue; } if (ch > 127 && ch < 176) { continue; } if (ch == 0) { filtercontents += '%'; filtercontents += 'U'; } else if(ch >= 1 && ch <= 26) { filtercontents += '$'; filtercontents += (ch + 64); } else if (ch >= 27 && ch <= 31) { filtercontents += '%'; filtercontents += (ch + 38); } else if (ch >= 33 && ch <= 47 && ch != 45 && ch != 46) { filtercontents += '/'; filtercontents += (ch + 32); } else if (ch == 58) { filtercontents += '/'; filtercontents += 'Z'; } else if (ch >= 59 && ch <= 63) { filtercontents += '%'; filtercontents += ch + 11; } else if (ch == 64) { filtercontents += '%'; filtercontents += 'V'; } else if (ch >= 91 && ch <= 95) { filtercontents += '%'; filtercontents += ch - 16; } else if (ch == 96) { filtercontents += '%'; filtercontents += 'W'; } else if (ch >= 97 && ch <= 122) { filtercontents += '+'; filtercontents += ch - 32; } else if (ch >= 123 && ch <= 126) { filtercontents += '%'; filtercontents += ch - 43; } else if (ch == 127) { filtercontents += '%'; filtercontents += 'T'; } else { filtercontents += ch; } } return filtercontents; } CFX_WideString CBC_OnedCode39Writer::RenderTextContents(FX_WSTR contents) { if (m_extendedMode) { return RenderExtendedTextContents(contents); } CFX_WideString renderContents; for(FX_INT32 i = 0; i < contents.GetLength(); i++) { FX_WCHAR ch = contents.GetAt(i); if ( ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1) ) { continue; } if(ch > 175) { i++; continue; } if ((ch >= (FX_WCHAR)'0' && ch <= (FX_WCHAR)'9') || (ch >= (FX_WCHAR)'A' && ch <= (FX_WCHAR)'Z') || (ch >= (FX_WCHAR)'a' && ch <= (FX_WCHAR)'z') || ch == (FX_WCHAR)'-' || ch == (FX_WCHAR)'.' || ch == (FX_WCHAR)' ' || ch == (FX_WCHAR)'*' || ch == (FX_WCHAR)'$' || ch == (FX_WCHAR)'/' || ch == (FX_WCHAR)'+' || ch == (FX_WCHAR)'%') { renderContents += ch; } } return renderContents; } CFX_WideString CBC_OnedCode39Writer::RenderExtendedTextContents(FX_WSTR contents) { CFX_WideString renderContents; for(FX_INT32 i = 0; i < contents.GetLength(); i++) { FX_WCHAR ch = contents.GetAt(i); if ( ch == (FX_WCHAR)'*' && (i == 0 || i == contents.GetLength() - 1) ) { continue; } if(ch > 175) { i++; continue; } if (ch > 127 && ch < 176) { continue; } renderContents += ch; } return renderContents; } FX_BOOL CBC_OnedCode39Writer::SetTextLocation(BC_TEXT_LOC location) { if ( location < BC_TEXT_LOC_NONE || location > BC_TEXT_LOC_BELOWEMBED) { return FALSE; } m_locTextLoc = location; return TRUE; } FX_BOOL CBC_OnedCode39Writer::SetWideNarrowRatio(FX_INT32 ratio) { if ( ratio < 2 || ratio > 3) { return FALSE; } m_iWideNarrRatio = ratio; return TRUE; } FX_BYTE *CBC_OnedCode39Writer::Encode(const CFX_ByteString &contents, BCFORMAT format, FX_INT32 &outWidth, FX_INT32 &outHeight, FX_INT32 &e) { FX_BYTE *ret = Encode(contents, format, outWidth, outHeight, 0 , e); BC_EXCEPTION_CHECK_ReturnValue(e, NULL); return ret; } FX_BYTE *CBC_OnedCode39Writer::Encode(const CFX_ByteString &contents, BCFORMAT format, FX_INT32 &outWidth, FX_INT32 &outHeight, FX_INT32 hints, FX_INT32 &e) { if(format != BCFORMAT_CODE_39) { e = BCExceptionOnlyEncodeCODE_39; return NULL; } FX_BYTE *ret = CBC_OneDimWriter::Encode(contents, format, outWidth, outHeight, hints, e); BC_EXCEPTION_CHECK_ReturnValue(e, NULL); return ret; } void CBC_OnedCode39Writer::ToIntArray(FX_INT32 a, FX_INT32 *toReturn) { for(FX_INT32 i = 0; i < 9; i++) { toReturn[i] = (a & (1 << i) ) == 0 ? 1 : m_iWideNarrRatio; } } FX_CHAR CBC_OnedCode39Writer::CalcCheckSum(const CFX_ByteString &contents, FX_INT32 &e) { FX_INT32 length = contents.GetLength(); if (length > 80) { e = BCExceptionContentsLengthShouldBetween1and80; return '*'; } FX_INT32 checksum = 0; FX_INT32 len = (FX_INT32)strlen(CBC_OnedCode39Reader::ALPHABET_STRING); for(FX_INT32 i = 0; i < contents.GetLength(); i++) { FX_INT32 j = 0; for (; j < len; j++) { if (CBC_OnedCode39Reader::ALPHABET_STRING[j] == contents[i]) { if(contents[i] != '*') { checksum += j; break; } else { break; } } } if (j >= len) { e = BCExceptionUnSupportedString; return '*'; } } checksum = checksum % 43; return CBC_OnedCode39Reader::CHECKSUM_STRING[checksum]; } FX_BYTE *CBC_OnedCode39Writer::Encode(const CFX_ByteString &contents, FX_INT32 &outlength , FX_INT32 &e) { FX_CHAR checksum = CalcCheckSum(contents, e); if (checksum == '*') { return NULL; } FX_INT32 widths[9] = {0}; FX_INT32 wideStrideNum = 3; FX_INT32 narrStrideNum = 9 - wideStrideNum; CFX_ByteString encodedContents = contents; if ( m_bCalcChecksum ) { encodedContents += checksum; } m_iContentLen = encodedContents.GetLength(); FX_INT32 codeWidth = (wideStrideNum * m_iWideNarrRatio + narrStrideNum) * 2 + 1 + m_iContentLen; FX_INT32 len = (FX_INT32)strlen(CBC_OnedCode39Reader::ALPHABET_STRING); for (FX_INT32 j = 0; j < m_iContentLen; j++) { for (FX_INT32 i = 0; i < len; i++) { if (CBC_OnedCode39Reader::ALPHABET_STRING[i] == encodedContents[j]) { ToIntArray(CBC_OnedCode39Reader::CHARACTER_ENCODINGS[i], widths); for(FX_INT32 k = 0; k < 9; k++) { codeWidth += widths[k]; } } } } outlength = codeWidth; FX_BYTE *result = FX_Alloc(FX_BYTE, codeWidth); ToIntArray(CBC_OnedCode39Reader::CHARACTER_ENCODINGS[39], widths); FX_INT32 pos = AppendPattern(result, 0, widths, 9, 1 , e); if (e != BCExceptionNO) { FX_Free (result); return NULL; } FX_INT32 narrowWhite[] = {1}; pos += AppendPattern(result, pos, narrowWhite, 1, 0, e); if (e != BCExceptionNO) { FX_Free (result); return NULL; } for(FX_INT32 l = m_iContentLen - 1; l >= 0; l--) { for (FX_INT32 i = 0; i < len; i++) { if (CBC_OnedCode39Reader::ALPHABET_STRING[i] == encodedContents[l]) { ToIntArray(CBC_OnedCode39Reader::CHARACTER_ENCODINGS[i], widths); pos += AppendPattern(result, pos, widths, 9, 1, e); if (e != BCExceptionNO) { FX_Free (result); return NULL; } } } pos += AppendPattern(result, pos, narrowWhite, 1, 0, e); if (e != BCExceptionNO) { FX_Free (result); return NULL; } } ToIntArray(CBC_OnedCode39Reader::CHARACTER_ENCODINGS[39], widths); pos += AppendPattern(result, pos, widths, 9, 1, e); if (e != BCExceptionNO) { FX_Free (result); return NULL; } for (FX_INT32 i = 0; i < codeWidth / 2; i++) { result[i] ^= result[codeWidth - 1 - i]; result[codeWidth - 1 - i] ^= result[i]; result[i] ^= result[codeWidth - 1 - i]; } return result; } CFX_WideString CBC_OnedCode39Writer::encodedContents(FX_WSTR contents, FX_INT32 &e) { CFX_WideString encodedContents = contents; if (m_bCalcChecksum && m_bPrintChecksum) { CFX_WideString checksumContent = FilterContents(contents); CFX_ByteString str = checksumContent.UTF8Encode(); FX_CHAR checksum; checksum = CalcCheckSum(str, e); BC_EXCEPTION_CHECK_ReturnValue(e, FX_WSTRC(L"")); str += checksum; encodedContents += checksum; } return encodedContents; } void CBC_OnedCode39Writer::RenderResult(FX_WSTR contents, FX_BYTE* code, FX_INT32 codeLength, FX_BOOL isDevice, FX_INT32 &e) { CFX_WideString encodedCon = encodedContents(contents, e); BC_EXCEPTION_CHECK_ReturnVoid(e); CBC_OneDimWriter::RenderResult(encodedCon, code, codeLength, isDevice, e); }