vtkContinuousValueWidget.h

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

  Program:   Visualization Toolkit
  Module:    vtkContinuousValueWidget.h

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

=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/

#ifndef vtkContinuousValueWidget_h
#define vtkContinuousValueWidget_h

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

class vtkContinuousValueWidgetRepresentation;


class VTKINTERACTIONWIDGETS_EXPORT 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 {}

  // 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 _WidgetState
  {
    Start=0,
    Highlighting,
    Adjusting
  };

  double Value;

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

#endif