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/*************************************************************************
* Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of The Dimension Library. *
* *
* The Dimension Library 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. *
* *
* The Dimension Library 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 this program. If not, see *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
// C++ wrapper for libdimension PNG support. PNG_Canvas derives from Canvas.
#ifndef DIMENSIONXX_PNG_HPP
#define DIMENSIONXX_PNG_HPP
#include <istream>
#include <ostream>
namespace Dimension
{
class PNG_Writer
{
public:
PNG_Writer(Canvas& canvas, std::ostream& ostr);
~PNG_Writer();
void write();
Progress write_async();
private:
// Copying prohibited
PNG_Writer(const PNG_Writer&);
PNG_Writer& operator=(const PNG_Writer&);
Canvas* m_canvas;
std::ostream* m_ostr;
bool m_written;
};
class PNG_Reader
{
public:
PNG_Reader(std::istream& istr);
// ~PNG_Reader();
Canvas read();
Progress read_async();
static Canvas finish(Progress& progress);
private:
// Copying prohibited
PNG_Reader(const PNG_Reader&);
PNG_Reader& operator=(const PNG_Reader&);
std::istream* m_istr;
bool m_read;
};
}
#endif /* DIMENSIONXX_PNG_HPP */
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