vtkSliderRepresentation2D.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkSliderRepresentation2D_h
#define vtkSliderRepresentation2D_h
 
#include "vtkCoordinate.h"               // For vtkViewportCoordinateMacro
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkSliderRepresentation.h"
 
VTK_ABI_NAMESPACE_BEGIN
class vtkPoints;
class vtkCellArray;
class vtkPolyData;
class vtkPolyDataMapper2D;
class vtkActor2D;
class vtkCoordinate;
class vtkProperty2D;
class vtkPropCollection;
class vtkWindow;
class vtkViewport;
class vtkTransform;
class vtkTransformPolyDataFilter;
class vtkTextProperty;
class vtkTextMapper;
class vtkTextActor;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkSliderRepresentation2D : public vtkSliderRepresentation
{
public:
  static vtkSliderRepresentation2D* New();


  vtkTypeMacro(vtkSliderRepresentation2D, vtkSliderRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  vtkCoordinate* GetPoint1Coordinate();

  vtkCoordinate* GetPoint2Coordinate();


  void SetTitleText(const char*) override;
  const char* GetTitleText() override;


  vtkGetObjectMacro(SliderProperty, vtkProperty2D);


  vtkGetObjectMacro(TubeProperty, vtkProperty2D);
  vtkGetObjectMacro(CapProperty, vtkProperty2D);


  vtkGetObjectMacro(SelectedProperty, vtkProperty2D);


  vtkGetObjectMacro(LabelProperty, vtkTextProperty);
  vtkGetObjectMacro(TitleProperty, vtkTextProperty);


  void PlaceWidget(double bounds[6]) override;
  void BuildRepresentation() override;
  void StartWidgetInteraction(double eventPos[2]) override;
  void WidgetInteraction(double newEventPos[2]) override;
  void Highlight(int) override;


  void GetActors2D(vtkPropCollection* propCollection) override;
  void ReleaseGraphicsResources(vtkWindow* window) override;
  int RenderOverlay(vtkViewport* viewport) override;
  int RenderOpaqueGeometry(vtkViewport* viewport) override;
 
protected:
  vtkSliderRepresentation2D();
  ~vtkSliderRepresentation2D() override;
 
  // Positioning the widget
  vtkCoordinate* Point1Coordinate;
  vtkCoordinate* Point2Coordinate;
 
  // Determine the parameter t along the slider
  virtual double ComputePickPosition(double eventPos[2]);
 
  // Define the geometry. It is constructed in canaonical position
  // along the x-axis and then rotated into position.
  vtkTransform* XForm;
  vtkPoints* Points;
 
  vtkCellArray* SliderCells;
  vtkPolyData* Slider;
  vtkTransformPolyDataFilter* SliderXForm;
  vtkPolyDataMapper2D* SliderMapper;
  vtkActor2D* SliderActor;
  vtkProperty2D* SliderProperty;
 
  vtkCellArray* TubeCells;
  vtkPolyData* Tube;
  vtkTransformPolyDataFilter* TubeXForm;
  vtkPolyDataMapper2D* TubeMapper;
  vtkActor2D* TubeActor;
  vtkProperty2D* TubeProperty;
 
  vtkCellArray* CapCells;
  vtkPolyData* Cap;
  vtkTransformPolyDataFilter* CapXForm;
  vtkPolyDataMapper2D* CapMapper;
  vtkActor2D* CapActor;
  vtkProperty2D* CapProperty;
 
  vtkTextProperty* LabelProperty;
  vtkTextMapper* LabelMapper;
  vtkActor2D* LabelActor;
 
  vtkTextProperty* TitleProperty;
  vtkTextMapper* TitleMapper;
  vtkActor2D* TitleActor;
 
  vtkProperty2D* SelectedProperty;
 
  // internal variables used for computation
  double X;
 
private:
  vtkSliderRepresentation2D(const vtkSliderRepresentation2D&) = delete;
  void operator=(const vtkSliderRepresentation2D&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif