vtkAnnotationROIRepresentation2D.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkAnnotationROIRepresentation2D.h,v $

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or https://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 __vtkAnnotationROIRepresentation2D_h
#define __vtkAnnotationROIRepresentation2D_h

// Annotations includes
#include "vtkAnnotationROIRepresentation.h"

class vtkLineSource;
class vtkSphereSource;
class vtkPropPicker;
class vtkProperty2D;
class vtkPolyData;
class vtkPoints;
class vtkPolyDataAlgorithm;
class vtkPointHandleRepresentation2D;
class vtkTransform;
class vtkPlanes;
class vtkBox;
class vtkDoubleArray;
class vtkMatrix4x4;

class vtkActor2D;
class vtkPolyDataMapper2D;
class vtkPlane;
class vtkTransform;
class vtkTransformPolyDataFilter;


class VTK_SLICER_ANNOTATIONS_MODULE_VTKWIDGETS_EXPORT
vtkAnnotationROIRepresentation2D
  : public vtkAnnotationROIRepresentation
{
public:
  static vtkAnnotationROIRepresentation2D *New();

  vtkTypeMacro(vtkAnnotationROIRepresentation2D,vtkAnnotationROIRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  vtkGetObjectMacro(IntersectionPlane,vtkPlane);

  vtkGetObjectMacro(IntersectionPlaneTransform,vtkTransform);

  void GetActors2D(vtkPropCollection *actors) override;

  void GetIntersectionActors(vtkPropCollection *actors);

  int ComputeInteractionState(int X, int Y, int modify=0) override;
  void StartWidgetInteraction(double e[2]) override;
  void WidgetInteraction(double e[2]) override;
  void SetInteractionState(int state) override;

  void ReleaseGraphicsResources(vtkWindow*) override;
  int RenderOpaqueGeometry(vtkViewport*) override;
  int RenderTranslucentPolygonalGeometry(vtkViewport*) override;
  int RenderOverlay(vtkViewport *viewport) override;

  int HasTranslucentPolygonalGeometry() override;

  void SizeHandles() override;

  vtkGetMacro(SliceIntersectionVisibility, int);
  vtkSetMacro(SliceIntersectionVisibility, int);

  vtkGetMacro(HandlesVisibility, int);
  vtkSetMacro(HandlesVisibility, int);

  int HighlightHandle(vtkProp *prop) override;
  void HighlightFace(int cellId) override;

  vtkSetClampMacro(HandleSize, double, 0.0001, 0.5);
  vtkGetMacro(HandleSize, double);

  void PrintIntersections(ostream& os);

protected:
  vtkAnnotationROIRepresentation2D();
  ~vtkAnnotationROIRepresentation2D() override;

  // Compute intersection line of the inputIntersectionFace and the slice plane
  // It is 50x faster than computing the intersection using vtkCutter
  virtual void ComputeIntersectionLine(vtkPolyData* inputIntersectionFace, vtkPlane* inputPlane, vtkPolyData* outputIntersectionFacesIntersection);

  vtkActor2D          **Handle2D;
  vtkPolyDataMapper2D **HandleMapper2D;
  vtkTransformPolyDataFilter **HandleToPlaneTransformFilters;

  vtkPlane *IntersectionPlane;
  vtkTransform *IntersectionPlaneTransform;
  vtkPolyData *IntersectionLines[6]; // intersection lines of IntersectionFaces
  vtkPolyData *IntersectionFaces[6];
  vtkTransformPolyDataFilter *IntersectionPlaneTransformFilters[6];
  vtkActor2D *IntersectionActors[6];
  vtkPolyDataMapper2D *IntersectionMappers[6];

  vtkProperty2D *HandleProperties2D[NUMBER_HANDLES];
  vtkProperty2D *SelectedHandleProperty2D;
  vtkProperty2D *SelectedFaceProperty2D;
  vtkProperty2D *DefaultFaceProperty2D;

  vtkPropPicker *HandlePicker2D;
  vtkPropPicker *LastPicker2D;
  vtkActor2D *CurrentHandle2D;

  double LastEventPosition2D[4];

  void CreateFaceIntersections();

  double ComputeHandleRadiusInWorldCoordinates(double radInPixels);

  void CreateDefaultProperties() override;
  void PositionHandles() override;

  int SliceIntersectionVisibility;

  double HandleSize;
  int HandlesVisibility;

private:
  vtkAnnotationROIRepresentation2D(const vtkAnnotationROIRepresentation2D&) = delete;
  void operator=(const vtkAnnotationROIRepresentation2D&) = delete;
};

#endif