Container.hpp

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// Copyright 2020-2023 Jan Niklas Hasse <jhasse@bixense.com>
// For conditions of distribution and use, see copyright notice in LICENSE.txt
#pragma once
 
#include <memory>
#include <set>
#include <vector>
 
namespace jngl {
 
class Widget;
 
class Container {
public:
    void step();
 
    void draw() const;
 
    Widget* addWidget(std::unique_ptr<Widget>);
 
    template <class T, class... Args> T* addWidget(Args&&... args) {
        return dynamic_cast<T*>(addWidget(std::make_unique<T>(std::forward<Args>(args)...)));
    }
 
    void removeWidget(Widget*);
 
private:
    std::vector<std::unique_ptr<Widget>> widgets;
    std::vector<std::unique_ptr<Widget>> needToAdd;
    std::set<Widget*> needToRemove;
    uint8_t iterating = 0;
};
 
} // namespace jngl