Widget.hpp

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// Copyright 2020-2024 Jan Niklas Hasse <jhasse@bixense.com>
// For conditions of distribution and use, see copyright notice in LICENSE.txt
#pragma once
 
#include "Mat3.hpp"
#include "Vec2.hpp"
 
#include <memory>
#include <set>
#include <vector>
 
namespace jngl {
 
class Effect;
 
class Widget {
public:
    explicit Widget(jngl::Vec2 position);
 
    virtual ~Widget();
 
    enum class Action : uint8_t {
        NONE,
        REMOVE,
        REQUEST_FOCUS,
    };
 
    [[nodiscard]] virtual Action step();
 
    virtual void draw() const;
 
    virtual void drawSelf(Mat3 modelview) const = 0;
 
    void addEffect(std::unique_ptr<Effect>);
 
    template<class T, class... Args>
    void addEffect(Args&&... args) {
        return addEffect(std::make_unique<T>(std::forward<Args>(args)...));
    }
 
    void removeEffect(Effect*);
 
    virtual void removeEffects();
 
    jngl::Vec2 getPosition() const;
 
protected:
    jngl::Vec2 position;
 
private:
    std::vector<std::unique_ptr<Effect>> effects;
    std::set<Effect*> needToRemove;
};
 
} // namespace jngl