/*
 ***************************************************************************
 *   Copyright (C) 2004 by Stijn Buys                                      *
 *   stijn.buys@pandora.be                                                 *
 *                                                                         *
 *   This software is redistributed under the terms of the                 *
 *   GNU General Public License. Please read LICENSE.txt.                  *
 ***************************************************************************
*/

#ifndef __COLOR_HEADER__
#define __COLOR_HEADER__

#include <iostream> 

/// a class representing an RGBA color value
class Color {
	public:
		Color();
		Color(const float, float  const, const float, const float=1.0f);
		Color(const float, const float=1.0f);
		Color(const Color &);

		float red() const;
		float green() const;
		float blue() const;
		float alpha() const;
		
		const Color &operator=(const Color &);
		
		Color operator*(const float scalar) const;
		
		// Some default colors
		static const Color Black() { return Color(0.0f); };
		static const Color White() { return Color(1.0f); };
		static const Color Red() { return Color(1.0f,0.0f,0.0f); };
		static const Color Green() { return Color(0.0f,1.0f,0.0f); };
		static const Color Blue()  { return Color(0.0f, 0.0f, 1.0f); };
		static const Color Yellow() { return Color(1.0f, 1.0f, 0.0f); };

	private:
		void normalize();
		float _r, _g, _b, _a;
};

std::ostream &operator<<(std::ostream &os, const Color &c);

Color operator*(const float scalar, const Color& color);

#endif // ___HEADER__