vtkContinuousValueWidget.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2008 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov

#ifndef vtkContinuousValueWidget_h
#define vtkContinuousValueWidget_h

#include "vtkAbstractWidget.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
#include "vtkWrappingHints.h"            // For VTK_MARSHALAUTO

VTK_ABI_NAMESPACE_BEGIN
class vtkContinuousValueWidgetRepresentation;

class VTKINTERACTIONWIDGETS_EXPORT VTK_MARSHALAUTO vtkContinuousValueWidget
  : public vtkAbstractWidget
{
public:

  vtkTypeMacro(vtkContinuousValueWidget, vtkAbstractWidget);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void SetRepresentation(vtkContinuousValueWidgetRepresentation* r)
  {
    this->Superclass::SetWidgetRepresentation(reinterpret_cast<vtkWidgetRepresentation*>(r));
  }

  vtkContinuousValueWidgetRepresentation* GetContinuousValueWidgetRepresentation()
  {
    return reinterpret_cast<vtkContinuousValueWidgetRepresentation*>(this->WidgetRep);
  }


  double GetValue();
  void SetValue(double v);

protected:
  vtkContinuousValueWidget();
  ~vtkContinuousValueWidget() override = default;

  // These are the events that are handled
  static void SelectAction(vtkAbstractWidget*);
  static void EndSelectAction(vtkAbstractWidget*);
  static void MoveAction(vtkAbstractWidget*);

  // Manage the state of the widget
  int WidgetState;
  enum WidgetStateType
  {
    Start = 0,
    Highlighting,
    Adjusting
  };

  double Value;

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

VTK_ABI_NAMESPACE_END
#endif