/*
 ***************************************************************************
 *   Copyright (C) 2002-2004 by Stijn Buys                                 *
 *   stijn.buys@pandora.be                                                 *
 *                                                                         *
 *   This software is redistributed under the terms of the                 *
 *   GNU General Public License. Please read LICENSE.txt.                  *
 ***************************************************************************
*/

#include "color.h"

Color::Color() {
	_r = _g = _b = 0.0f;
	_a = 1.0f;
}

Color::Color(const float red, const float green , const float blue , const float alpha) {
	_r = red;
	_g = green;
	_b = blue;
	_a = alpha;
}

Color::Color(const float grey, const float alpha) {
	_r = _g = _b = grey;
	_a = alpha;
}

Color::Color(const Color &other) {
	this->operator=(other);
}

const Color & Color::operator=(const Color &other) {
	this->_r = other._r;
	this->_g = other._g;
	this->_b = other._b;
	this->_a = other._a;
	return (*this);
}

void Color::normalize() {
	float tmp = _r;

	if (_g > tmp)
		tmp = _g;
	if ( _b > tmp)
		tmp = _b;

	if (tmp > 1) {
		_r /= tmp;
		_g /= tmp;
		_b /= tmp;
	}	
}

float Color::red() const {
	return _r;
}

float Color::green() const {
	return _g;
}

float Color::blue() const {
	return _b;
}

float Color::alpha() const {
	return _a;
}

Color Color::operator*(float scalar) const {
	return Color(red()*scalar, green()*scalar, blue()*scalar, alpha());
}

Color operator*(float scalar, const Color& color) {
	return color * scalar;
}
std::ostream &operator<<(std::ostream &os, const Color &c) {
	os <<  c.red() << " " << c.green() << " " << c.blue() << " " << c.alpha();
	return os;
}