layer_stack.hpp

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/*
 * Copyright (C) 2020-2022 Konstanty Misiak
 *
 * SPDX-License-Identifier: MIT
 */
 
#pragma once
 
namespace jng {
 
    class Layer;
 
    class LayerStack
    {
    public:
        using ContainerType = std::vector<Layer*>;
        using Interator = ContainerType::iterator;
        using ConstInterator = ContainerType::const_iterator;
        using ReverseInterator = ContainerType::reverse_iterator;
        using ConstReverseInterator = ContainerType::const_reverse_iterator;
 
        LayerStack() = default;
        ~LayerStack();
 
        void pushLayer(Layer* layer);
        Layer* popLayer();
 
        Interator begin() { return m_layers.begin(); }
        Interator end() { return m_layers.end(); }
        ConstInterator begin() const { return m_layers.begin(); }
        ConstInterator end() const { return m_layers.end(); }
        ReverseInterator rbegin() { return m_layers.rbegin(); }
        ReverseInterator rend() { return m_layers.rend(); }
        ConstReverseInterator rbegin() const { return m_layers.rbegin(); }
        ConstReverseInterator rend() const { return m_layers.rend(); }
    private:
 
        LayerStack(const LayerStack&) = delete;
        LayerStack& operator=(const LayerStack&) = delete;
 
        ContainerType m_layers;
    };
 
} // namespace jng