MyGUI_Colour.h

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/*
 * This source file is part of MyGUI. For the latest info, see http://mygui.info/
 * Distributed under the MIT License
 * (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
 */
 
#ifndef MYGUI_COLOUR_H_
#define MYGUI_COLOUR_H_
 
#include "MyGUI_Prerequest.h"
#include "MyGUI_Types.h"
 
namespace MyGUI
{
 
    struct MYGUI_EXPORT Colour
    {
    public:
        Colour() = default;
        Colour(float _red, float _green, float _blue, float _alpha = 1);
        explicit Colour(std::string_view _value);
 
        bool operator==(Colour const& _value) const;
        bool operator!=(Colour const& _value) const;
 
        void set(float _red, float _green, float _blue, float _alpha = 1);
 
        void clear();
 
        std::string print() const;
 
        static Colour parse(std::string_view _value);
 
        friend std::ostream& operator<<(std::ostream& _stream, const Colour& _value)
        {
            return operatorShiftLeft(_stream, _value);
        }
 
        friend std::istream& operator>>(std::istream& _stream, Colour& _value)
        {
            return operatorShiftRight(_stream, _value);
        }
 
        static std::ostream& operatorShiftLeft(std::ostream& _stream, const Colour& _value);
        static std::istream& operatorShiftRight(std::istream& _stream, Colour& _value);
 
    public:
        float red{1.0f};
        float green{1.0f};
        float blue{1.0f};
        float alpha{1.0f};
 
        static const Colour Zero;
        static const Colour Black;
        static const Colour White;
        static const Colour Red;
        static const Colour Green;
        static const Colour Blue;
    };
 
} // namespace MyGUI
 
#endif // MYGUI_COLOUR_H_