ContextMenu.h

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// Copyright (c) 2025 Dave R. Smith.
// Malena Framework — Licensed under PolyForm Noncommercial 1.0.0; commercial use requires a paid license. See LICENSE.
 
#ifndef MALENA_CONTEXTMENU_H
#define MALENA_CONTEXTMENU_H
 
#pragma once
 
#include <Malena/Core/malena_export.h>
#include <Malena/Graphics/Base/Graphic.h>
#include <SFML/Graphics/RectangleShape.hpp>
#include <functional>
#include <string>
#include <vector>
 
namespace ml
{
    class MALENA_API ContextMenu : public Graphic<sf::RectangleShape>
    {
    public:
        ContextMenu();
 
        void addItem(const std::string& label, std::function<void()> action);
        void clearItems();
 
        void showAt(const sf::Vector2f& pos);
        void hide();
        [[nodiscard]] bool isOpen() const { return _open; }

        void onClose(std::function<void()> cb);
 
        void setPosition(const sf::Vector2f& pos) override;
        [[nodiscard]] sf::Vector2f  getPosition()     const override;
        [[nodiscard]] sf::FloatRect getGlobalBounds() const override;
 
        void draw(sf::RenderTarget& target, sf::RenderStates states) const override;
 
    private:
        struct Item { std::string label; std::function<void()> action; };
 
        [[nodiscard]] sf::FloatRect itemRect(std::size_t i) const;
        void recomputeSize();
 
        std::vector<Item> _items;
        bool         _open          = false;
        bool         _prevMouseDown = false;
        sf::Vector2f _pos  { 0.f, 0.f };
        float        _itemH = 26.f;
        float        _pad   = 4.f;
        float        _width = 140.f;
        unsigned int _charSize = 14;
        mutable int  _hover = -1;
        std::function<void()> _onClose;
    };
 
} // namespace ml
 
#endif // MALENA_CONTEXTMENU_H