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// 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 "../barcode.h"
#include "../common/BC_CommonBitMatrix.h"
#include "../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;
}
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