/*
 *  Copyright (c) 2002 Patrick Julien  <freak@codepimps.org>
 *
 *  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 2 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef KIS_STRATEGY_MOVE_H_
#define KIS_STRATEGY_MOVE_H_

#include <qpoint.h>
#include "kis_types.h"
#include <koffice_export.h>

class KoDocument;
class KisCanvasControllerInterface;
class KisCanvasSubject;

class KRITAUI_EXPORT KisStrategyMove {
public:
	KisStrategyMove();
	explicit KisStrategyMove(KisCanvasSubject *subject);
	virtual ~KisStrategyMove();

public:
	void reset(KisCanvasSubject *subject);
	void startDrag(const QPoint& pos);
	void drag(const QPoint& pos);
	void endDrag(const QPoint& pos, bool undo = true);
	void simpleMove(const QPoint& pt1, const QPoint& pt2);
	void simpleMove(Q_INT32 x1, Q_INT32 y1, Q_INT32 x2, Q_INT32 y2);

private:
	KisStrategyMove(const KisStrategyMove&);
	KisStrategyMove& operator=(const KisStrategyMove&);

private:
	KoDocument *m_doc; 
	KisCanvasControllerInterface *m_controller; 
	KisCanvasSubject *m_subject;
	QPoint m_dragStart;
	QPoint m_layerStart;
	QPoint m_layerPosition;
	bool m_dragging;
};

#endif // KIS_STRATEGY_MOVE_H_

