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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 "fxbarcode/datamatrix/BC_X12Encoder.h"
#include "fxbarcode/common/BC_CommonBitMatrix.h"
#include "fxbarcode/datamatrix/BC_C40Encoder.h"
#include "fxbarcode/datamatrix/BC_Encoder.h"
#include "fxbarcode/datamatrix/BC_EncoderContext.h"
#include "fxbarcode/datamatrix/BC_HighLevelEncoder.h"
#include "fxbarcode/datamatrix/BC_SymbolInfo.h"
#include "fxbarcode/utils.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()) {
wchar_t 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->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(wchar_t c, CFX_WideString& sb, int32_t& e) {
if (c == '\r') {
sb += (wchar_t)'\0';
} else if (c == '*') {
sb += (wchar_t)'\1';
} else if (c == '>') {
sb += (wchar_t)'\2';
} else if (c == ' ') {
sb += (wchar_t)'\3';
} else if (c >= '0' && c <= '9') {
sb += (wchar_t)(c - 48 + 4);
} else if (c >= 'A' && c <= 'Z') {
sb += (wchar_t)(c - 65 + 14);
} else {
e = BCExceptionIllegalArgument;
return -1;
}
return 1;
}
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