// Created on: 1997-06-06
// Created by: Alexander BRIVIN
// Copyright (c) 1997-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _VrmlConverter_Projector_HeaderFile
#define _VrmlConverter_Projector_HeaderFile

#include "Standard.hxx"
#include "Standard_Type.hxx"

#include "HLRAlgo_Projector.hxx"
#include "Vrml_PerspectiveCamera.hxx"
#include "Vrml_OrthographicCamera.hxx"
#include "Vrml_DirectionalLight.hxx"
#include "Vrml_PointLight.hxx"
#include "Vrml_SpotLight.hxx"
#include "VrmlConverter_TypeOfCamera.hxx"
#include "VrmlConverter_TypeOfLight.hxx"
#include "Vrml_MatrixTransform.hxx"
#include "Standard_Transient.hxx"
#include "TopoDS_Shape.hxx"
#include "NCollection_Array1.hxx"
#include "Standard_OStream.hxx"

//! defines projector and calculates properties of cameras and lights from Vrml
//! (OrthograpicCamera, PerspectiveCamera, DirectionalLight, PointLight, SpotLight
//! and MatrixTransform) to display all scene shapes with arbitrary locations
//! for requested the Projection Vector, High Point Direction and the Focus
//! and adds them (method Add) to anOSream.
class VrmlConverter_Projector : public Standard_Transient
{

public:
  Standard_EXPORT VrmlConverter_Projector(
    const NCollection_Array1<TopoDS_Shape>& Shapes,
    const double                            Focus,
    const double                            DX,
    const double                            DY,
    const double                            DZ,
    const double                            XUp,
    const double                            YUp,
    const double                            ZUp,
    const VrmlConverter_TypeOfCamera        Camera = VrmlConverter_NoCamera,
    const VrmlConverter_TypeOfLight         Light  = VrmlConverter_NoLight);

  Standard_EXPORT void SetCamera(const VrmlConverter_TypeOfCamera aCamera);

  Standard_EXPORT VrmlConverter_TypeOfCamera Camera() const;

  Standard_EXPORT void SetLight(const VrmlConverter_TypeOfLight aLight);

  Standard_EXPORT VrmlConverter_TypeOfLight Light() const;

  //! Adds into anOStream if they are defined in Create.
  //! PerspectiveCamera,
  //! OrthographicCamera,
  //! DirectionLight,
  //! PointLight,
  //! SpotLight
  //! with MatrixTransform from VrmlConverter;
  Standard_EXPORT void Add(Standard_OStream& anOStream) const;

  Standard_EXPORT HLRAlgo_Projector Projector() const;

  DEFINE_STANDARD_RTTIEXT(VrmlConverter_Projector, Standard_Transient)

private:
  HLRAlgo_Projector          myProjector;
  Vrml_PerspectiveCamera     myPerspectiveCamera;
  Vrml_OrthographicCamera    myOrthographicCamera;
  Vrml_DirectionalLight      myDirectionalLight;
  Vrml_PointLight            myPointLight;
  Vrml_SpotLight             mySpotLight;
  VrmlConverter_TypeOfCamera myTypeOfCamera;
  VrmlConverter_TypeOfLight  myTypeOfLight;
  Vrml_MatrixTransform       myMatrixTransform;
};

#endif // _VrmlConverter_Projector_HeaderFile