//------------------------------------------------------------------------------
//
// This file is part of Toolkit for Conceptual Modeling (TCM).
// (c) copyright 1996, Vrije Universiteit Amsterdam.
// Author: Frank Dehne (frank@cs.vu.nl).
//
// TCM 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.
//
// TCM 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 TCM; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//-----------------------------------------------------------------------------
#ifndef _CELLSELECTION_H
#define _CELLSELECTION_H

#include "llist.h"
class Cell;
class TableViewer;

/// list of selected cells.
class CellSelection {	
/*@Doc: {\large {\bf scope:} table} */
public:
	///
	CellSelection();
	///
	virtual ~CellSelection();
	///
	void Draw();
	///
	void Undraw();
	///
	void SelectCell(Cell *);
	///
	void SelectCells(List<Cell *> *);
	///
	void DeselectCell(Cell *);
	///
	void DeselectCells(List<Cell *> *);
	///
	void DeselectAll();
	///
	int NrSelected() const {return cells->count();}
	///
	Cell *FirstSelected();
	///
	Cell *NextSelected();
private:
	friend class TableViewer;

	/// inverse of cell.Selected.
	List<Cell *> *cells;	
};
#endif