/*=========================================================================

   Library: iMSTK

   Copyright (c) Kitware, Inc. & Center for Modeling, Simulation,
   & Imaging in Medicine, Rensselaer Polytechnic Institute.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0.txt

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

=========================================================================*/

#pragma once

#include "imstkVTKRenderDelegate.h"

class vtkDoubleArray;

namespace imstk
{
class SurfaceMesh;

///
/// \class VTKSurfaceMeshRenderDelegate
///
/// \brief Surface mesh render delegate with VTK backend
///
class VTKSurfaceMeshRenderDelegate : public VTKRenderDelegate
{
public:
    ///
    /// \brief Constructor
    ///
    explicit VTKSurfaceMeshRenderDelegate(std::shared_ptr<VisualModel> visualModel);

    ///
    /// \brief Destructor
    ///
    ~VTKSurfaceMeshRenderDelegate() = default;

    ///
    /// \brief Update polydata source based on the surface mesh geometry
    ///
    void updateDataSource() override;

    ///
    /// \brief Initialize textures
    ///
    void initializeTextures(TextureManager<VTKTextureDelegate>& textureManager);

protected:
    vtkSmartPointer<vtkDoubleArray> m_mappedVertexArray;    ///> Mapped array of vertices
    vtkSmartPointer<vtkDoubleArray> m_mappedNormalArray;    ///> Mapped array of normals
    vtkSmartPointer<vtkDoubleArray> m_mappedTangentArray;   ///> Mapped array of tangents
};
}
