/** \file
 * \brief Abstract InitialPlacer places the nodes of the level into the next.
 *
 * \author Gereon Bartel
 *
 * \par License:
 * This file is part of the Open Graph Drawing Framework (OGDF).
 *
 * \par
 * Copyright (C)<br>
 * See README.md in the OGDF root directory for details.
 *
 * \par
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * Version 2 or 3 as published by the Free Software Foundation;
 * see the file LICENSE.txt included in the packaging of this file
 * for details.
 *
 * \par
 * 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.
 *
 * \par
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, see
 * http://www.gnu.org/copyleft/gpl.html
 */

#pragma once

#include <ogdf/basic/Graph.h>
#include <ogdf/energybased/multilevel_mixer/MultilevelGraph.h>

namespace ogdf {

//! Base class for placer modules.
/**
 * @ingroup gd-multi
 */
class OGDF_EXPORT InitialPlacer {
protected:
	bool m_randomOffset;

public:
	InitialPlacer() : m_randomOffset(true) { }

	virtual ~InitialPlacer() { }

	virtual void placeOneLevel(MultilevelGraph& MLG) = 0;

	void setRandomOffset(bool on) { m_randomOffset = on; }
};

}
