multi_part_image.hpp

#pragma once

#include <limits>

#include "../global.hpp"
#include "../composite.hpp"
#include "stream_image.hpp"

namespace Cvb
{

CVB_BEGIN_INLINE_NS

namespace Driver
{


class MultiPartImage
  : public StreamImage
  , public std::enable_shared_from_this<MultiPartImage>
{
  friend class Image;

  public:

    virtual ~MultiPartImage() = default;


    int NumParts() const noexcept
    {
      return composite_.ItemCount();
    }


    CompositeVariant GetPartAt(int index) const
    {
      return composite_.ItemAt(index);
    }


    static MultiPartImagePtr FromComposite(CompositePtr object)
    {
      CVB_CALL_CAPI(ShareObject(object->Handle()));
      return FromHandle<MultiPartImage>(HandleGuard<Image>(object->Handle()));
    }

  protected:

    MultiPartImage(HandleGuard<Image>&& guard) noexcept
      : StreamImage(std::move(guard))
      , composite_(*this)
    {
    }

  private:
    Composite composite_;
};

}

using Driver::MultiPartImage;

CVB_END_INLINE_NS



}