Layer.h

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#ifndef HRK_LAYER_H
#define HRK_LAYER_H

#include <memory>


namespace hrk
{
    class Component;
    class PointF;


    class Layer
    {
    public:
        Layer(void);
        ~Layer(void);

        void set_input_enabled(bool enable);
        bool is_input_enabled(void) const;

        void clear(void);
        void push_front(Component* component);
        void push_back(Component* component);
        void insert(const Component* at, Component* layer);
        void remove(const Component* component);

#if 0
        Component* front(void);
        Component* back(void);
#endif

        void set_alpha(double alpha);
        void set_color_strength(double ratio);

        void update(void);
        void draw(const PointF& position);

    private:
        Layer(const Layer& rhs);
        Layer& operator = (const Layer& rhs);

        struct pImpl;
        std::auto_ptr<pImpl> pimpl;
    };
}

#endif