style.h

/*
**  UICore
**  Copyright (c) 1997-2015 The UICore Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries UICore may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
*/

#pragma once

#include "../../Core/Text/string_format.h"
#include "../../Core/Math/cl_math.h"
#include "../../Core/Math/color.h"
#include "style_get_value.h"
#include <memory>

namespace uicore
{
    class StyleImpl;
    class StyleGetValue;

    class Style
    {
    public:
        Style();
        Style(const Style &) = delete;
        ~Style();
        Style &operator=(const Style &) = delete;

        void set(const std::string &properties);

        template <class Arg1, typename... Values>
        void set(const std::string &properties, Arg1 arg1, Values... values)
        {
            set(string_format(properties, arg1, values...));
        }

        StyleGetValue declared_value(const char *property_name) const;
        StyleGetValue declared_value(const std::string &property_name) const { return declared_value(property_name.c_str()); }

        static std::string to_rgba(const Colorf &c)
        {
            return string_format(
                "rgba(%1,%2,%3,%4)",
                clamp((int)std::round(c.x * 255), 0, 255),
                clamp((int)std::round(c.y * 255), 0, 255),
                clamp((int)std::round(c.z * 255), 0, 255),
                c.w);
        }

    private:
        std::unique_ptr<StyleImpl> impl;
    };
}