vtkCameraRepresentation.h

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

  Program:   Visualization Toolkit
  Module:    vtkCameraRepresentation.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkCameraRepresentation_h
#define vtkCameraRepresentation_h

#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkBorderRepresentation.h"

class vtkRenderer;
class vtkRenderWindowInteractor;
class vtkCamera;
class vtkCameraInterpolator;
class vtkPoints;
class vtkPolyData;
class vtkTransformPolyDataFilter;
class vtkPolyDataMapper2D;
class vtkProperty2D;
class vtkActor2D;

class VTKINTERACTIONWIDGETS_EXPORT vtkCameraRepresentation : public vtkBorderRepresentation
{
public:
  static vtkCameraRepresentation *New();


  vtkTypeMacro(vtkCameraRepresentation,vtkBorderRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void SetCamera(vtkCamera *camera);
  vtkGetObjectMacro(Camera,vtkCamera);


  void SetInterpolator(vtkCameraInterpolator *camInt);
  vtkGetObjectMacro(Interpolator,vtkCameraInterpolator);


  vtkSetClampMacro(NumberOfFrames,int,1,VTK_INT_MAX);
  vtkGetMacro(NumberOfFrames,int);


  vtkGetObjectMacro(Property,vtkProperty2D);


  void AddCameraToPath();
  void AnimatePath(vtkRenderWindowInteractor *rwi);
  void InitializePath();

  void BuildRepresentation() override;
  void GetSize(double size[2]) override
    {size[0]=6.0; size[1]=2.0;}


  void GetActors2D(vtkPropCollection*) override;
  void ReleaseGraphicsResources(vtkWindow*) override;
  int RenderOverlay(vtkViewport*) override;
  int RenderOpaqueGeometry(vtkViewport*) override;
  int RenderTranslucentPolygonalGeometry(vtkViewport*) override;
  vtkTypeBool HasTranslucentPolygonalGeometry() override;

protected:
  vtkCameraRepresentation();
  ~vtkCameraRepresentation() override;

  // the camera and the interpolator
  vtkCamera             *Camera;
  vtkCameraInterpolator *Interpolator;
  int                   NumberOfFrames;
  double                CurrentTime;

  // representation of the camera
  vtkPoints                  *Points;
  vtkPolyData                *PolyData;
  vtkTransformPolyDataFilter *TransformFilter;
  vtkPolyDataMapper2D        *Mapper;
  vtkProperty2D              *Property;
  vtkActor2D                 *Actor;

private:
  vtkCameraRepresentation(const vtkCameraRepresentation&) = delete;
  void operator=(const vtkCameraRepresentation&) = delete;
};

#endif