ui_container.hpp

#ifndef TOYMAKERBUILTINS_UICONTAINER_H
#define TOYMAKERBUILTINS_UICONTAINER_H
 
#include "toymaker/engine/sim_system.hpp"
 
namespace ToyMaker {

    class IUIElement {
    public:
        virtual glm::vec2 getReferenceCoordinate() const = 0;

        virtual glm::vec3 getOffsets() const = 0;

        virtual bool allowsDescendantControl() const = 0;
    };

    class UIContainer: public ToyMaker::SimObjectAspect<UIContainer> {
    public:
        UIContainer(): SimObjectAspect<UIContainer>{ 0 } {}

        inline static std::string getSimObjectAspectTypeName() { return "UIContainer"; }

        static std::shared_ptr<BaseSimObjectAspect> create(const nlohmann::json& jsonAspectProperties);

        std::shared_ptr<BaseSimObjectAspect> clone() const override;

        void onActivated() override;
 
    private:
        void onViewportResized(const ViewportNode::RenderConfiguration& renderConfiguration);

        glm::vec2 mContentSize { 1.f, 1.f };

        SignalObserver<ViewportNode::RenderConfiguration> mObservedViewportResized {
            *this, "onViewportResized", [this](const auto& renderConfiguration) {
                this->onViewportResized(renderConfiguration);
            }
        };
    };
}
 
#endif