Theme.hpp

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#ifndef IV_SRC_UI_THEMES_THEME_HPP_
#define IV_SRC_UI_THEMES_THEME_HPP_
 
#include "ui/graphics/Material.hpp"
 
#include <iostream>
 
namespace iv::ui::theme
{
 
template<typename T>
concept ThemeImplementation = requires {
    { T::applyTheme() } -> std::same_as<void>;
    { T::normalFont } -> std::same_as<const std::string &>;
    { T::boldFont } -> std::same_as<const std::string &>;
    { T::italicFont } -> std::same_as<const std::string &>;
    { T::boldItalicFont } -> std::same_as<const std::string &>;
    { T::fontSize } -> std::same_as<const double &>;
    { T::alternateListMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::backgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::buttonBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::buttonSelectedBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::buttonShadowBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::buttonTextMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::buttonsGroupBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::buttonsGroupEdgeMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::contextMenuButtonMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::defaultMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::dialogBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::dialogShadowBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::dialogTitleMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::editBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::editMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::focusMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::frameViewMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::headerListMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::illuminationMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::inactiveMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::indicatorTitleMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::menuBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::progressMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::scrollBackgroundMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::scrollMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::separatorLineMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::textMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::titleMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::titleLabelMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
    { T::valueLabelMaterial } -> std::same_as<const iv::ui::graphics::Material &>;
};
 
class ThemeBase
{
public:
    virtual ~ThemeBase() = default;
    virtual void applyTheme() const = 0;
};
 
template<ThemeImplementation T>
class Theme final : public ThemeBase
{
public:
    void applyTheme() const override
    {
        //T::applyTheme();
        std::cout << "Theme applied" << std::endl;
        std::cout << "Normal font: " << T::normalFont << std::endl;
        std::cout << "Applying theme with font size: " << T::fontSize << std::endl;
    }
};
 
}// namespace iv::ui::theme
 
#endif//IV_SRC_UI_THEMES_THEME_HPP_