image_proxy.h

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// Based on "Design Patterns: Elements of Reusable Object-Oriented Software"
// book by Erich Gamma, John Vlissides, Ralph Johnson, and Richard Helm 
//
// Created by Bartosz Rachwal. The National Institute of Advanced Industrial Science and Technology, Japan.

#ifndef STRUCTURAL_PROXY_IMAGE_PROXY_H_
#define STRUCTURAL_PROXY_IMAGE_PROXY_H_

#include "graphic_interface.h"
#include "image.h"

namespace structural
{
namespace proxy
{
class ImageProxy : public GraphicInterface
{
    public:
    explicit ImageProxy(const std::string& file_name);
    virtual ~ImageProxy();

    virtual void Draw(const commons::Point<float>& at) override;
    virtual void HandleMouse(Event& event) override;
    virtual const commons::Point<float> &GetExtent() override;
    virtual void Load(std::istream& from) override;
    virtual void Save(std::ostream& to) override;

    protected:
    Image *GetImage();

    private:
    const commons::Point<float> kZeroExtent = commons::Point<float>(0, 0);
    Image* image_;
    commons::Point<float> extent_;
    std::string file_name_;
};
}
}

#endif