/*
	Scan Tailor - Interactive post-processing tool for scanned pages.
	Copyright (C) 2015  Joseph Artsimovich <joseph.artsimovich@gmail.com>

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program 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 General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef AUTO_REMOVING_FILE_H_
#define AUTO_REMOVING_FILE_H_

#include "foundation_config.h"
#include <QString>

/**
 * \brief Provides auto_ptr semantics for files.
 *
 * Just like std::auto_ptr deleting its object when it goes out of scope,
 * this class deletes a file.  auto_ptr's copying semantics is also preserved.
 */
class FOUNDATION_EXPORT AutoRemovingFile
{
private:
	struct CopyHelper
	{
		AutoRemovingFile* obj;

		CopyHelper(AutoRemovingFile* o) : obj(o) {}
	};
public:
	AutoRemovingFile();

	AutoRemovingFile(QString const& file_path);

	AutoRemovingFile(AutoRemovingFile& other);

	AutoRemovingFile(CopyHelper other);

	~AutoRemovingFile();

	AutoRemovingFile& operator=(AutoRemovingFile& other);

	AutoRemovingFile& operator=(CopyHelper other);

	operator CopyHelper() { return CopyHelper(this); }

	QString const& get() const { return m_file; }

	void reset(QString const& file);

	QString release();
private:
	QString m_file;
};

#endif
