vtkQWidgetRepresentation.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkQWidgetRepresentation_h
#define vtkQWidgetRepresentation_h

#include "vtkGUISupportQtModule.h" // For export macro
#include "vtkWidgetRepresentation.h"

class QWidget;

VTK_ABI_NAMESPACE_BEGIN
class vtkActor;
class vtkCellPicker;
class vtkOpenGLTexture;
class vtkPlaneSource;
class vtkPolyDataAlgorithm;
class vtkPolyDataMapper;
class vtkQWidgetTexture;

class VTKGUISUPPORTQT_EXPORT vtkQWidgetRepresentation : public vtkWidgetRepresentation
{
public:
  static vtkQWidgetRepresentation* New();


  vtkTypeMacro(vtkQWidgetRepresentation, vtkWidgetRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  vtkPolyDataAlgorithm* GetPolyDataAlgorithm();

  void UpdatePlacement();


  void PlaceWidget(double bounds[6]) override;
  void BuildRepresentation() override;
  int ComputeComplexInteractionState(vtkRenderWindowInteractor* iren, vtkAbstractWidget* widget,
    unsigned long event, void* calldata, int modify = 0) override;


  double* GetBounds() VTK_SIZEHINT(6) override;
  void GetActors(vtkPropCollection* pc) override;
  void ReleaseGraphicsResources(vtkWindow*) override;
  int RenderOpaqueGeometry(vtkViewport*) override;
  int RenderTranslucentPolygonalGeometry(vtkViewport*) override;
  vtkTypeBool HasTranslucentPolygonalGeometry() override;

  // Manage the state of the widget
  enum InteractionStateType
  {
    Outside = 0,
    Inside
  };


  vtkSetClampMacro(InteractionState, int, Outside, Inside);

  void SetWidget(QWidget* w);

  vtkGetObjectMacro(QWidgetTexture, vtkQWidgetTexture);

  vtkGetObjectMacro(PlaneSource, vtkPlaneSource);

  vtkGetVector2Macro(WidgetCoordinates, float);

protected:
  vtkQWidgetRepresentation();
  ~vtkQWidgetRepresentation() override;

  float WidgetCoordinates[2];

  vtkPlaneSource* PlaneSource;
  vtkPolyDataMapper* PlaneMapper;
  vtkActor* PlaneActor;
  vtkOpenGLTexture* PlaneTexture;
  vtkQWidgetTexture* QWidgetTexture;

  vtkCellPicker* Picker;

  // Register internal Pickers within PickingManager
  void RegisterPickers() override;

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

VTK_ABI_NAMESPACE_END
#endif