#ifndef LIBQCROSS_CNONOGRAMSOLVER_H
#define LIBQCROSS_CNONOGRAMSOLVER_H

#include <QObject>
#include <QSize>
#include <QList>

namespace libqnono {
	class CNonogramNumbers;
	
	class CNonogramSolution {
	public:
		CNonogramSolution(QSize size, bool ** data)
		: m_size(size), m_data(data) {
		}
		
		~CNonogramSolution() {
			int cols = m_size.width();
			for (int col = 0; col < cols; ++col) delete [] m_data[col];
			delete[] m_data;
		}
		
		QSize size() const { return m_size; }
		bool** data() { return m_data; }
		
	private:
		Q_DISABLE_COPY(CNonogramSolution)
		
		QSize m_size;
		bool ** m_data;
	};
	
	QList<CNonogramSolution*> solve(const CNonogramNumbers & numbers);
	
	class CNonogram;
	
	class CNonogramSolver : public QObject {
		Q_OBJECT
	public:
		CNonogramSolver(QObject * parent = 0);
		~CNonogramSolver();
		
		void setNonogram(CNonogram * nonogram);
	public slots:
		bool solve();
	signals:
		void markRequested(int x, int y, int type);
	protected:
		enum MarkerType {CMT_UNMARKED = 0, CMT_MARKED = 1, CMT_CROSSED = 2, CMT_NONE = 3};
		
		CNonogram * m_Nonogram;
	};
}

#endif