/// Copyright (c) 2009 Ruben Penalva. All rights reserved.
/// Redistribution and use in source and binary forms, with or without modification, 
/// are permitted provided that the following conditions are met:
///    1. Redistributions of source code must retain the above copyright notice, this 
///    list of conditions and the following disclaimer.
///    2. Redistributions in binary form must reproduce the above copyright notice,
///    this list of conditions and the following disclaimer in the documentation and/or
///    other materials provided with the distribution.
///    3. The name of the author may not be used to endorse or promote products derived
///    from this software without specific prior written permission.
///
/// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
/// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
/// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 
/// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 
/// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
/// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
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/// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

/// @file Triangulator.h
/// This source file is part of 2dRender LetterCDT Test.
/// The file holds the Triangulator class interface.
/// @author Ruben Penalva (ruben.penalva@rpenalva.com)

#ifndef _TRIANGULATOR_H_
#define _TRIANGULATOR_H_

#include <vector>

#include "Point.h"
#include "Line.h"

namespace LetterCDT
{

/// @brief Triangulates a groups of segments, contours and holes
/// using tirnagle library
class Triangulator
{
public:
	/// Constructor
	/// @param segments the segments of the polygon
	/// @param contours the contours of the polygon
	/// @param holes the holes inside of the polygon
	Triangulator(const std::vector<Line>& segments,
				 const std::vector<int>& contours,
				 const std::vector<Point>& holes);
	
	/// Destructor
	~Triangulator(void);

	/// @brief Gets triangle indices
	/// @return triangles indices
	const std::vector<int>& GetIndices(void) const;

private:
	/// Triangle indices
	std::vector<int> m_indices;

	/// @note hide copy constructor from interface user
	Triangulator(const Triangulator&);

	/// @note hide assignment operator from interface user
	Triangulator& operator=(const Triangulator&);

	/// @brief Triangulates a polygon using triangle library
	/// @param segments the segments of the polygon
	/// @param contours the contours of the polygon
	/// @param holes the holes inside of the polygon
	void Triangulate(const std::vector<Line>& segments, 
					 const std::vector<int>& contours,
					 const std::vector<Point>& holes);
};

}

#endif