Theme.hpp

//
// TGUI - Texus' Graphical User Interface
// Copyright (C) 2012-2025 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_HPP
#define TGUI_THEME_HPP
 
#include <TGUI/Loading/ThemeLoader.hpp>
#include <TGUI/Renderers/WidgetRenderer.hpp>

 
TGUI_MODULE_EXPORT namespace tgui
{
    class TGUI_API Theme
    {
    public:
 
        using Ptr = std::shared_ptr<Theme>; 
        using ConstPtr = std::shared_ptr<const Theme>; 

        Theme(const String& primary = "");

        Theme(const Theme&);

        Theme(Theme&&) noexcept;

        virtual ~Theme();

        Theme& operator=(const Theme&);

        Theme& operator=(Theme&&) noexcept;

        TGUI_NODISCARD static Theme::Ptr create(const String& primary = "");

        void load(const String& primary);

        void replace(const Theme& otherTheme);

        TGUI_NODISCARD std::shared_ptr<RendererData> getRenderer(const String& id);

        TGUI_NODISCARD std::shared_ptr<RendererData> getRendererNoThrow(const String& id);

        TGUI_NODISCARD ObjectConverter getGlobalProperty(const String& property);

        void addRenderer(const String& id, std::shared_ptr<RendererData> renderer);

        bool removeRenderer(const String& id);

        TGUI_NODISCARD const String& getPrimary() const;

        static void setThemeLoader(std::shared_ptr<BaseThemeLoader> themeLoader);

        TGUI_NODISCARD static std::shared_ptr<BaseThemeLoader> getThemeLoader();

        static void setDefault(const String& primary = "");

        static void setDefault(std::shared_ptr<Theme> theme);

        static void setDefault(std::nullptr_t);

        TGUI_NODISCARD static std::shared_ptr<Theme> getDefault();

        static void addRendererInheritanceParent(const String& widgetType, const String& parentType);

        TGUI_NODISCARD static String getRendererInheritanceParent(const String& widgetType);

        static void addRendererDefaultSubwidget(const String& widgetType, const String& property, const String& propertyWidgetType);

        TGUI_NODISCARD static std::map<String, String> getRendererDefaultSubwidgets(const String& widgetType);

        static void addRendererInheritedGlobalProperty(const String& widgetType, const String& property, const String& globalProperty);

        TGUI_NODISCARD static std::map<String, String> getRendererInheritedGlobalProperties(const String& widgetType);

    protected:
 
        static std::map<String, String> m_rendererInheritanceParents;
        static std::map<String, std::map<String, String>> m_rendererDefaultSubwidgets;
        static std::map<String, std::map<String, String>> m_rendererInheritedGlobalProperties;
        static std::shared_ptr<Theme> m_defaultTheme;
        static std::shared_ptr<BaseThemeLoader> m_themeLoader;  
 
        std::map<String, std::shared_ptr<RendererData>> m_renderers; 
        std::map<String, ObjectConverter> m_globalProperties; 
        String m_primary;
    };

}

 
#endif // TGUI_THEME_HPP