base64buffer.h

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/*
 * Copyright (C) 2020 Ondrej Starek
 *
 * This file is part of OTest2.
 *
 * OTest2 is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OTest2 is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with OTest2.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef OTest2__LIB_BASE64BUFFER_H_
#define OTest2__LIB_BASE64BUFFER_H_
 
#include <streambuf>
 
namespace OTest2 {
 
class Base64Buffer : public std::streambuf {
  private:
    struct Impl;
    Impl* pimpl;
 
  public:
    explicit Base64Buffer(
        std::streambuf* decorated_,
        int width_);
 
    virtual ~Base64Buffer();
 
    /* -- avoid copying */
    Base64Buffer(
        const Base64Buffer&) = delete;
    Base64Buffer& operator = (
        const Base64Buffer&) = delete;
 
    bool close() noexcept;
 
  private:
    /* -- streambuf interface */
    virtual int overflow(
        int c);
 
    bool finishOutputData();
};
 
} /* -- namespace OTest2 */
 
#endif /* -- OTest2__LIB_BASE64BUFFER_H_ */