ThemeLoader.hpp

 
//
// TGUI - Texus' Graphical User Interface
// Copyright (C) 2012-2020 Bruno Van de Velde (vdv_b@tgui.eu)
//
// 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.
//
 
 
#ifndef TGUI_THEME_LOADER_HPP
#define TGUI_THEME_LOADER_HPP
 
 
#include <TGUI/Config.hpp>
#include <SFML/System/String.hpp>
#include <memory>
#include <string>
#include <vector>
#include <map>
 
 
namespace tgui
{
    class TGUI_API BaseThemeLoader
    {
    public:
 
        virtual ~BaseThemeLoader() = default;
 
 
        virtual void preload(const std::string& primary);
 
 
        virtual const std::map<sf::String, sf::String>& load(const std::string& primary, const std::string& secondary) = 0;
 
 
        virtual bool canLoad(const std::string& primary, const std::string& secondary) = 0;
 
 
    };
 
 
    class TGUI_API DefaultThemeLoader : public BaseThemeLoader
    {
    public:
 
        void preload(const std::string& filename) override;
 
 
        const std::map<sf::String, sf::String>& load(const std::string& filename, const std::string& section) override;
 
 
        bool canLoad(const std::string& filename, const std::string& section) override;
 
 
        static void flushCache(const std::string& filename = "");
 
 
    protected:
 
        virtual void readFile(const std::string& filename, std::stringstream& contents) const;
 
 
    private:
        static std::map<std::string, std::map<std::string, std::map<sf::String, sf::String>>> m_propertiesCache;
 
        friend struct DefaultThemeLoaderTest; // Used for testing m_propertiesCache
    };
 
 
}
 
 
#endif // TGUI_THEME_LOADER_HPP