/***************************************************************************
 *   Copyright (C) 2012 Stefan Bühler <stbuehler@web.de>                   *
 *                                                                         *
 *   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 LIBQNONO_NONOGRAMNUMBERS_H
#define LIBQNONO_NONOGRAMNUMBERS_H

#include <QVector>
#include <QSize>
#include <QImage>

namespace libqnono {
	class NonogramImage;
	
	class NonogramNumbers {
	public:
		typedef QVector<quint16> v_num;
		typedef QVector<v_num> vv_num;
		
		NonogramNumbers();
		NonogramNumbers(const vv_num & rows, const vv_num & columns);
		explicit NonogramNumbers(const NonogramImage & image);
		explicit NonogramNumbers(const QImage & image);
		
		void calcFromImage(const NonogramImage & image);
		
		// one pixel changed, only update the row and column for it
		void updateFromImage(const NonogramImage & image, int x, int y);
		
		bool readFromStream(QDataStream & stream);
		void writeToStream(QDataStream & stream);
		
		bool operator==(const NonogramNumbers &other) const;
		
		const vv_num & rows() const { return m_rows; }
		const vv_num & columns() const { return m_columns; }
		
		int maximumNumberCount() const;
		
		QSize size() const { return QSize(m_columns.count(), m_rows.count()); }
		int width() const { return m_columns.count(); }
		int height() const { return m_rows.count(); }
		
		bool check(const NonogramImage & image) const;
		
	private:
		vv_num m_rows, m_columns;
	};
}

#endif // LIBQNONO_NONOGRAMNUMBERS_H