vtkSphereRepresentation.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkSphereRepresentation_h
#define vtkSphereRepresentation_h
 
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkSphereSource.h"             // Needed for fast access to the sphere source
#include "vtkWidgetRepresentation.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO
 
VTK_ABI_NAMESPACE_BEGIN
class vtkActor;
class vtkPolyDataMapper;
class vtkSphere;
class vtkSphereSource;
class vtkCellPicker;
class vtkProperty;
class vtkPolyData;
class vtkPoints;
class vtkPolyDataAlgorithm;
class vtkTransform;
class vtkDoubleArray;
class vtkMatrix4x4;
class vtkTextMapper;
class vtkActor2D;
class vtkTextProperty;
class vtkLineSource;
class vtkCursor3D;
 
#define VTK_SPHERE_OFF 0
#define VTK_SPHERE_WIREFRAME 1
#define VTK_SPHERE_SURFACE 2
 
class VTKINTERACTIONWIDGETS_EXPORT VTK_MARSHALAUTO vtkSphereRepresentation
  : public vtkWidgetRepresentation
{
public:
  static vtkSphereRepresentation* New();


  vtkTypeMacro(vtkSphereRepresentation, vtkWidgetRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  // Used to manage the state of the widget
  enum
  {
    Outside = 0,
    MovingHandle,
    OnSphere,
    Translating,
    Scaling
  };


  vtkSetClampMacro(Representation, int, VTK_SPHERE_OFF, VTK_SPHERE_SURFACE);
  vtkGetMacro(Representation, int);
  void SetRepresentationToOff() { this->SetRepresentation(VTK_SPHERE_OFF); }
  void SetRepresentationToWireframe() { this->SetRepresentation(VTK_SPHERE_WIREFRAME); }
  void SetRepresentationToSurface() { this->SetRepresentation(VTK_SPHERE_SURFACE); }

  void SetThetaResolution(int r) { this->SphereSource->SetThetaResolution(r); }
  int GetThetaResolution() { return this->SphereSource->GetThetaResolution(); }

  void SetPhiResolution(int r) { this->SphereSource->SetPhiResolution(r); }
  int GetPhiResolution() { return this->SphereSource->GetPhiResolution(); }

  void SetCenter(double c[3]);
  void SetCenter(double x, double y, double z)
  {
    double c[3];
    c[0] = x;
    c[1] = y;
    c[2] = z;
    this->SetCenter(c);
  }
  double* GetCenter() VTK_SIZEHINT(3) { return this->SphereSource->GetCenter(); }
  void GetCenter(double xyz[3]) { this->SphereSource->GetCenter(xyz); }

  void SetRadius(double r);
  double GetRadius() { return this->SphereSource->GetRadius(); }


  vtkSetMacro(HandleVisibility, vtkTypeBool);
  vtkGetMacro(HandleVisibility, vtkTypeBool);
  vtkBooleanMacro(HandleVisibility, vtkTypeBool);


  void SetHandlePosition(double handle[3]);
  void SetHandlePosition(double x, double y, double z)
  {
    double p[3];
    p[0] = x;
    p[1] = y;
    p[2] = z;
    this->SetHandlePosition(p);
  }
  vtkGetVector3Macro(HandlePosition, double);


  void SetHandleDirection(double dir[3]);
  void SetHandleDirection(double dx, double dy, double dz)
  {
    double d[3];
    d[0] = dx;
    d[1] = dy;
    d[2] = dz;
    this->SetHandleDirection(d);
  }
  vtkGetVector3Macro(HandleDirection, double);


  vtkSetMacro(HandleText, vtkTypeBool);
  vtkGetMacro(HandleText, vtkTypeBool);
  vtkBooleanMacro(HandleText, vtkTypeBool);


  vtkSetMacro(RadialLine, vtkTypeBool);
  vtkGetMacro(RadialLine, vtkTypeBool);
  vtkBooleanMacro(RadialLine, vtkTypeBool);


  vtkSetMacro(CenterCursor, bool);
  vtkGetMacro(CenterCursor, bool);
  vtkBooleanMacro(CenterCursor, bool);

  void GetPolyData(vtkPolyData* pd);

  void GetSphere(vtkSphere* sphere);


  vtkGetObjectMacro(SphereProperty, vtkProperty);
  vtkGetObjectMacro(SelectedSphereProperty, vtkProperty);


  vtkGetObjectMacro(HandleProperty, vtkProperty);
  vtkGetObjectMacro(SelectedHandleProperty, vtkProperty);


  vtkGetObjectMacro(HandleTextProperty, vtkTextProperty);


  vtkGetObjectMacro(RadialLineProperty, vtkProperty);


  void SetInteractionColor(double, double, double);
  void SetInteractionColor(double c[3]) { this->SetInteractionColor(c[0], c[1], c[2]); }
  void SetHandleColor(double, double, double);
  void SetHandleColor(double c[3]) { this->SetHandleColor(c[0], c[1], c[2]); }
  void SetForegroundColor(double, double, double);
  void SetForegroundColor(double c[3]) { this->SetForegroundColor(c[0], c[1], c[2]); }

  void SetInteractionState(int state);


  void PlaceWidget(double bounds[6]) override;
  virtual void PlaceWidget(double center[3], double handlePosition[3]);
  void BuildRepresentation() override;
  int ComputeInteractionState(int X, int Y, int modify = 0) override;
  void StartWidgetInteraction(double e[2]) override;
  void WidgetInteraction(double e[2]) override;
  double* GetBounds() override;


  void ReleaseGraphicsResources(vtkWindow*) override;
  int RenderOpaqueGeometry(vtkViewport*) override;
  int RenderTranslucentPolygonalGeometry(vtkViewport*) override;
  int RenderOverlay(vtkViewport*) override;
  vtkTypeBool HasTranslucentPolygonalGeometry() override;
 
  /*
   * Register internal Pickers within PickingManager
   */
  void RegisterPickers() override;


  vtkGetMacro(TranslationAxis, int);
  vtkSetClampMacro(TranslationAxis, int, -1, 2);


  void SetXTranslationAxisOn() { this->TranslationAxis = Axis::XAxis; }
  void SetYTranslationAxisOn() { this->TranslationAxis = Axis::YAxis; }
  void SetZTranslationAxisOn() { this->TranslationAxis = Axis::ZAxis; }
  void SetTranslationAxisOff() { this->TranslationAxis = Axis::NONE; }


  bool IsTranslationConstrained() { return this->TranslationAxis != Axis::NONE; }
 
protected:
  vtkSphereRepresentation();
  ~vtkSphereRepresentation() override;
 
  // Manage how the representation appears
  double LastEventPosition[3];
 
  int TranslationAxis;
 
  // the sphere
  vtkActor* SphereActor;
  vtkPolyDataMapper* SphereMapper;
  vtkSphereSource* SphereSource;
  void HighlightSphere(int highlight);
 
  // The representation of the sphere
  int Representation;
 
  // Do the picking
  vtkCellPicker* HandlePicker;
  vtkCellPicker* SpherePicker;
  double LastPickPosition[3];
 
  // Methods to manipulate the sphere widget
  void Translate(const double* p1, const double* p2);
  void Scale(const double* p1, const double* p2, int X, int Y);
  void PlaceHandle(const double* center, double radius);
  virtual void SizeHandles();
 
  // Method to adapt the center cursor bounds
  // so it always have the same pixel size on screen
  virtual void AdaptCenterCursorBounds();
 
  // Properties used to control the appearance of selected objects and
  // the manipulator in general.
  vtkProperty* SphereProperty;
  vtkProperty* SelectedSphereProperty;
  vtkProperty* HandleProperty;
  vtkProperty* SelectedHandleProperty;
  void CreateDefaultProperties();
 
  // Managing the handle
  vtkActor* HandleActor;
  vtkPolyDataMapper* HandleMapper;
  vtkSphereSource* HandleSource;
  void HighlightHandle(int);
  vtkTypeBool HandleVisibility;
  double HandleDirection[3];
  double HandlePosition[3];
 
  // Manage the handle label
  vtkTypeBool HandleText;
  vtkTextProperty* HandleTextProperty;
  vtkTextMapper* HandleTextMapper;
  vtkActor2D* HandleTextActor;
 
  // Manage the radial line segment
  vtkTypeBool RadialLine;
  vtkProperty* RadialLineProperty;
  vtkLineSource* RadialLineSource;
  vtkPolyDataMapper* RadialLineMapper;
  vtkActor* RadialLineActor;
 
  // Managing the center cursor
  vtkActor* CenterActor;
  vtkPolyDataMapper* CenterMapper;
  vtkCursor3D* CenterCursorSource;
  bool CenterCursor;
 
private:
  vtkSphereRepresentation(const vtkSphereRepresentation&) = delete;
  void operator=(const vtkSphereRepresentation&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif