/**
 * Stone of Orthanc
 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 * Copyright (C) 2017-2020 Osimis S.A., Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#pragma once

#include "../Scene2D/Scene2D.h"
#include "IVolumeSlicer.h"

#include <boost/shared_ptr.hpp>

namespace OrthancStone
{
  /**
     This class applies one "volume slicer" to a "3D volume", in order
     to create one "2D scene layer" that will be set onto the "2D
     scene". The style of the layer can be fine-tuned using a "layer
     style configurator". The class only changes the layer if the
     cutting plane has been modified since the last call to "Update()".
   */
  class VolumeSceneLayerSource : public boost::noncopyable
  {
  private:
    Scene2D&                                scene_;
    int                                     layerDepth_;
    boost::shared_ptr<IVolumeSlicer>        slicer_;
    std::unique_ptr<ILayerStyleConfigurator>  configurator_;
    std::unique_ptr<CoordinateSystem3D>       lastPlane_;
    uint64_t                                lastRevision_;
    uint64_t                                lastConfiguratorRevision_;

    void ClearLayer();

  public:
    VolumeSceneLayerSource(Scene2D& scene,
                           int layerDepth,
                           const boost::shared_ptr<IVolumeSlicer>& slicer);

    ~VolumeSceneLayerSource();

    const IVolumeSlicer& GetSlicer() const
    {
      return *slicer_;
    }

    void RemoveConfigurator();

    void SetConfigurator(ILayerStyleConfigurator* configurator);

    bool HasConfigurator() const
    {
      return configurator_.get() != NULL;
    }

    ILayerStyleConfigurator& GetConfigurator() const;

    void Update(const CoordinateSystem3D& plane);  
  };
}