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/*
math/color.cc
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
// project headers
#include "math/color.h"
namespace math
{
Color::Color() :
r(_r), g(_g), b(_b), a(_a)
{
_r = _g = _b = 0.0f;
_a = 1.0f;
}
Color::Color(const float red, const float green , const float blue , const float alpha) :
r(_r), g(_g), b(_b), a(_a)
{
_r = red;
_g = green;
_b = blue;
_a = alpha;
}
Color::Color(const float grey, const float alpha) :
r(_r), g(_g), b(_b), a(_a)
{
_r = _g = _b = grey;
_a = alpha;
}
Color::Color(const Color &other) :
r(_r), g(_g), b(_b), a(_a)
{
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;
}
std::istream &operator>>(std::istream & is, Color & color)
{
float r, g, b, a;
is >> r;
is >> g;
is >> b;
//is >> a;
a = 1.0;
color = Color(r,g,b,a);
return (is);
}
} // namespace math
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