106 lines
2.3 KiB
C++
106 lines
2.3 KiB
C++
/* This file is part of Mapnik (c++ mapping toolkit)
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* Copyright (C) 2005 Artem Pavlenko
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*
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* Mapnik is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//$Id: color.hpp 39 2005-04-10 20:39:53Z pavlenko $
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#ifndef COLOR_HPP
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#define COLOR_HPP
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#include <sstream>
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namespace mapnik {
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class Color
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{
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private:
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unsigned int rgba_;
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public:
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Color()
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:rgba_(0xffffffff) {}
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Color(int red,int green,int blue,int alpha=0xff)
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: rgba_((alpha&0xff) << 24 | (blue&0xff) << 16 | (green&0xff) << 8 | red&0xff) {}
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explicit Color(int rgba)
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: rgba_(rgba) {}
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Color(const Color& rhs)
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: rgba_(rhs.rgba_) {}
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Color& operator=(const Color& rhs)
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{
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if (this==&rhs) return *this;
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rgba_=rhs.rgba_;
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return *this;
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}
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inline unsigned int blue() const
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{
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return (rgba_>>16)&0xff;
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}
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inline unsigned int green() const
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{
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return (rgba_>>8)&0xff;
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}
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inline unsigned int red() const
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{
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return rgba_&0xff;
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}
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inline void set_red(unsigned int r)
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{
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rgba_ = (rgba_ & 0xffffff00) | (r&0xff);
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}
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inline void set_green(unsigned int g)
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{
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rgba_ = (rgba_ & 0xffff00ff) | ((g&0xff) << 8);
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}
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inline void set_blue(unsigned int b)
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{
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rgba_ = (rgba_ & 0xff00ffff) | ((b&0xff) << 16);
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}
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inline unsigned int alpha() const
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{
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return (rgba_>>24)&0xff;
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}
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inline unsigned int rgba() const
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{
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return rgba_;
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}
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inline void set_bgr(unsigned bgr)
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{
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rgba_ = (rgba_ & 0xff000000) | (bgr & 0xffffff);
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}
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inline bool operator==(Color const& other) const
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{
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return rgba_ == other.rgba_;
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}
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inline std::string to_string() const
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{
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std::stringstream ss;
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ss << "rgb (" << red() << "," << green() << "," << blue() <<")";
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return ss.str();
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}
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};
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}
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#endif //COLOR_HPP
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