| // 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 CFX_WideString& msg, |
| const CFX_WideString& ecLevel, |
| int32_t& e) { |
| CFX_ByteString dststr; |
| CBC_UtilCodingConvert::UnicodeToUTF8(msg, dststr); |
| CFX_WideString sb; |
| int32_t c = dststr.GetLength(); |
| for (int32_t i = 0; i < c; i++) { |
| wchar_t ch = (wchar_t)(dststr.GetAt(i) & 0xff); |
| if (ch == '?' && dststr.GetAt(i) != '?') { |
| e = BCExceptionCharactersOutsideISO88591Encoding; |
| } |
| sb += ch; |
| } |
| m_msg = sb; |
| 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.GetAt(m_pos); |
| } |
| wchar_t CBC_EncoderContext::getCurrent() { |
| return m_msg.GetAt(m_pos); |
| } |
| |
| void CBC_EncoderContext::writeCodewords(const CFX_WideString& codewords) { |
| m_codewords += codewords; |
| } |
| |
| void CBC_EncoderContext::writeCodeword(wchar_t codeword) { |
| m_codewords += codeword; |
| } |
| int32_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(); |
| } |
| int32_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; |
| } |
| |
| int32_t CBC_EncoderContext::getTotalMessageCharCount() { |
| return m_msg.GetLength() - m_skipAtEnd; |
| } |