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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_EncoderContext.h"
#include "fxbarcode/BC_UtilCodingConvert.h"
#include "fxbarcode/common/BC_CommonBitMatrix.h"
#include "fxbarcode/datamatrix/BC_Encoder.h"
#include "fxbarcode/datamatrix/BC_SymbolInfo.h"
#include "fxbarcode/utils.h"
CBC_EncoderContext::CBC_EncoderContext(const WideString& msg,
const WideString& ecLevel,
int32_t& e) {
ByteString dststr;
CBC_UtilCodingConvert::UnicodeToUTF8(msg, dststr);
size_t c = dststr.GetLength();
WideString sb;
sb.Reserve(c);
for (size_t i = 0; i < c; i++) {
wchar_t ch = static_cast<wchar_t>(dststr[i] & 0xff);
if (ch == '?' && dststr[i] != '?') {
e = BCExceptionCharactersOutsideISO88591Encoding;
}
sb += ch;
}
m_msg = sb;
m_codewords.Reserve(m_msg.GetLength());
m_allowRectangular = true;
m_newEncoding = -1;
m_pos = 0;
m_symbolInfo = nullptr;
m_skipAtEnd = 0;
}
CBC_EncoderContext::~CBC_EncoderContext() {}
void CBC_EncoderContext::setAllowRectangular(bool allow) {
m_allowRectangular = allow;
}
void CBC_EncoderContext::setSkipAtEnd(int32_t count) {
m_skipAtEnd = count;
}
wchar_t CBC_EncoderContext::getCurrentChar() {
return m_msg[m_pos];
}
wchar_t CBC_EncoderContext::getCurrent() {
return m_msg[m_pos];
}
void CBC_EncoderContext::writeCodewords(const WideString& codewords) {
m_codewords += codewords;
}
void CBC_EncoderContext::writeCodeword(wchar_t codeword) {
m_codewords += codeword;
}
size_t CBC_EncoderContext::getCodewordCount() {
return m_codewords.GetLength();
}
void CBC_EncoderContext::signalEncoderChange(int32_t encoding) {
m_newEncoding = encoding;
}
void CBC_EncoderContext::resetEncoderSignal() {
m_newEncoding = -1;
}
bool CBC_EncoderContext::hasMoreCharacters() {
return m_pos < getTotalMessageCharCount();
}
size_t CBC_EncoderContext::getRemainingCharacters() {
return getTotalMessageCharCount() - m_pos;
}
void CBC_EncoderContext::updateSymbolInfo(int32_t& e) {
updateSymbolInfo(getCodewordCount(), e);
}
void CBC_EncoderContext::updateSymbolInfo(int32_t len, int32_t& e) {
if (!m_symbolInfo || len > m_symbolInfo->dataCapacity()) {
m_symbolInfo = CBC_SymbolInfo::lookup(len, m_allowRectangular, e);
if (e != BCExceptionNO)
return;
}
}
void CBC_EncoderContext::resetSymbolInfo() {
m_allowRectangular = true;
}
size_t CBC_EncoderContext::getTotalMessageCharCount() {
return m_msg.GetLength() - m_skipAtEnd;
}
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