ui_text.hpp

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#ifndef TOYMAKERBUILTINS_UITEXT_H
#define TOYMAKERBUILTINS_UITEXT_H
 
#include "toymaker/engine/sim_system.hpp"
#include "toymaker/engine/text_render.hpp"
 
#include "ui_container.hpp"
 
namespace ToyMaker {

    class UIText: public ToyMaker::SimObjectAspect<UIText>, public IUIElement {
    public:
        UIText(): SimObjectAspect<UIText>{0} {}

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

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

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

        void onActivated() override;

        inline std::string getText() const { return mText; }

        void updateText(const std::string& newText);

        void updateColor(glm::u8vec4 newColour);

        void updateScale(float scale);

        void updateFont(const std::string& textResourceName);

        void updateAnchor(glm::vec2 anchor);
 
        inline glm::vec2 getReferenceCoordinate() const override {
            return mReferenceCoordinate;
        }
 
        inline glm::vec3 getOffsets() const override {
            return mOffsets;
        }
 
        inline bool allowsDescendantControl() const override {
            return false;
        }
 
    private:
        void recomputeTexture();

        glm::u8vec4 mColor {0x00, 0x00, 0x00, 0xFF};

        std::shared_ptr<ToyMaker::TextFont> mFont {};

        std::string mText {};

        float mScale { 1e-2 };

        uint32_t mMaxWidthPixels { 0 };

        glm::vec2 mAnchor {0.f, 0.f};

        glm::vec2 mReferenceCoordinate { 0.f, 0.f };

        glm::vec3 mOffsets { 0.f, 0.f, 0.f };
    };
}
 
#endif