/usr/include/mapnik/color.hpp is in libmapnik-dev 2.2.0+ds1-7+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2011 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_COLOR_HPP
#define MAPNIK_COLOR_HPP
// mapnik
#include <mapnik/config.hpp>
#include <mapnik/global.hpp>
//boost
#include <boost/cstdint.hpp>
#include <boost/operators.hpp>
// stl
#include <sstream>
namespace mapnik {
class MAPNIK_DECL color
: boost::equality_comparable<color>
{
private:
boost::uint8_t red_;
boost::uint8_t green_;
boost::uint8_t blue_;
boost::uint8_t alpha_;
public:
color()
: red_(0xff),
green_(0xff),
blue_(0xff),
alpha_(0xff)
{}
color(boost::uint8_t red, boost::uint8_t green, boost::uint8_t blue, boost::uint8_t alpha = 0xff)
: red_(red),
green_(green),
blue_(blue),
alpha_(alpha)
{}
color(const color& rhs)
: red_(rhs.red_),
green_(rhs.green_),
blue_(rhs.blue_),
alpha_(rhs.alpha_)
{}
color( std::string const& str);
std::string to_string() const;
std::string to_hex_string() const;
void premultiply();
void demultiply();
color& operator=(color const& rhs)
{
if (this==&rhs)
return *this;
red_ = rhs.red_;
green_ = rhs.green_;
blue_ = rhs.blue_;
alpha_ = rhs.alpha_;
return *this;
}
inline bool operator==(color const& rhs) const
{
return (red_== rhs.red()) &&
(green_ == rhs.green()) &&
(blue_ == rhs.blue()) &&
(alpha_ == rhs.alpha());
}
inline boost::uint8_t red() const
{
return red_;
}
inline boost::uint8_t green() const
{
return green_;
}
inline boost::uint8_t blue() const
{
return blue_;
}
inline boost::uint8_t alpha() const
{
return alpha_;
}
inline void set_red(boost::uint8_t red)
{
red_ = red;
}
inline void set_green(boost::uint8_t green)
{
green_ = green;
}
inline void set_blue(boost::uint8_t blue)
{
blue_ = blue;
}
inline void set_alpha(boost::uint8_t alpha)
{
alpha_ = alpha;
}
inline unsigned rgba() const
{
#ifdef MAPNIK_BIG_ENDIAN
return (alpha_) | (blue_ << 8) | (green_ << 16) | (red_ << 24) ;
#else
return (alpha_ << 24) | (blue_ << 16) | (green_ << 8) | (red_) ;
#endif
}
};
template <typename charT, typename traits>
std::basic_ostream<charT, traits> &
operator << ( std::basic_ostream<charT, traits> & s, mapnik::color const& c )
{
std::string hex_string( c.to_string() );
s << hex_string;
return s;
}
}
#endif // MAPNIK_COLOR_HPP
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