// 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 2006-2007 Jeremias Maerki. | |
* | |
* 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 "xfa/src/fxbarcode/barcode.h" | |
#include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" | |
#include "xfa/src/fxbarcode/BC_Dimension.h" | |
#include "BC_Encoder.h" | |
#include "BC_SymbolShapeHint.h" | |
#include "BC_SymbolInfo.h" | |
#include "BC_EncoderContext.h" | |
#include "BC_HighLevelEncoder.h" | |
#include "BC_C40Encoder.h" | |
#include "BC_X12Encoder.h" | |
CBC_X12Encoder::CBC_X12Encoder() {} | |
CBC_X12Encoder::~CBC_X12Encoder() {} | |
int32_t CBC_X12Encoder::getEncodingMode() { | |
return X12_ENCODATION; | |
} | |
void CBC_X12Encoder::Encode(CBC_EncoderContext& context, int32_t& e) { | |
CFX_WideString buffer; | |
while (context.hasMoreCharacters()) { | |
FX_WCHAR c = context.getCurrentChar(); | |
context.m_pos++; | |
encodeChar(c, buffer, e); | |
if (e != BCExceptionNO) { | |
return; | |
} | |
int32_t count = buffer.GetLength(); | |
if ((count % 3) == 0) { | |
writeNextTriplet(context, buffer); | |
int32_t newMode = CBC_HighLevelEncoder::lookAheadTest( | |
context.m_msg, context.m_pos, getEncodingMode()); | |
if (newMode != getEncodingMode()) { | |
context.signalEncoderChange(newMode); | |
break; | |
} | |
} | |
} | |
handleEOD(context, buffer, e); | |
} | |
void CBC_X12Encoder::handleEOD(CBC_EncoderContext& context, | |
CFX_WideString& buffer, | |
int32_t& e) { | |
context.updateSymbolInfo(e); | |
if (e != BCExceptionNO) { | |
return; | |
} | |
int32_t available = | |
context.m_symbolInfo->m_dataCapacity - context.getCodewordCount(); | |
int32_t count = buffer.GetLength(); | |
if (count == 2) { | |
context.writeCodeword(CBC_HighLevelEncoder::X12_UNLATCH); | |
context.m_pos -= 2; | |
context.signalEncoderChange(ASCII_ENCODATION); | |
} else if (count == 1) { | |
context.m_pos--; | |
if (available > 1) { | |
context.writeCodeword(CBC_HighLevelEncoder::X12_UNLATCH); | |
} | |
context.signalEncoderChange(ASCII_ENCODATION); | |
} | |
} | |
int32_t CBC_X12Encoder::encodeChar(FX_WCHAR c, CFX_WideString& sb, int32_t& e) { | |
if (c == '\r') { | |
sb += (FX_WCHAR)'\0'; | |
} else if (c == '*') { | |
sb += (FX_WCHAR)'\1'; | |
} else if (c == '>') { | |
sb += (FX_WCHAR)'\2'; | |
} else if (c == ' ') { | |
sb += (FX_WCHAR)'\3'; | |
} else if (c >= '0' && c <= '9') { | |
sb += (FX_WCHAR)(c - 48 + 4); | |
} else if (c >= 'A' && c <= 'Z') { | |
sb += (FX_WCHAR)(c - 65 + 14); | |
} else { | |
CBC_HighLevelEncoder::illegalCharacter(c, e); | |
BC_EXCEPTION_CHECK_ReturnValue(e, -1); | |
} | |
return 1; | |
} |