vtkContourWidget.h

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

  Program:   Visualization Toolkit
  Module:    vtkContourWidget.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.

=========================================================================*/
#ifndef vtkContourWidget_h
#define vtkContourWidget_h

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

class vtkContourRepresentation;
class vtkPolyData;
class vtkIdList;

class VTKINTERACTIONWIDGETS_EXPORT vtkContourWidget : public vtkAbstractWidget
{
public:
  static vtkContourWidget* New();


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

  void SetEnabled(int) override;

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

  vtkContourRepresentation* GetContourRepresentation()
  {
    return reinterpret_cast<vtkContourRepresentation*>(this->WidgetRep);
  }

  void CreateDefaultRepresentation() override;

  void CloseLoop();


  vtkSetMacro(WidgetState, int);


  vtkGetMacro(WidgetState, int);


  void SetAllowNodePicking(vtkTypeBool);
  vtkGetMacro(AllowNodePicking, vtkTypeBool);
  vtkBooleanMacro(AllowNodePicking, vtkTypeBool);


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


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

  virtual void Initialize(vtkPolyData* poly, int state = 1, vtkIdList* idList = nullptr);
  virtual void Initialize() { this->Initialize(nullptr); }

  // The state of the widget

  enum
  {
    Start,
    Define,
    Manipulate
  };

protected:
  vtkContourWidget();
  ~vtkContourWidget() override;

  int WidgetState;
  int CurrentHandle;
  vtkTypeBool AllowNodePicking;
  vtkTypeBool FollowCursor;
  vtkTypeBool ContinuousDraw;
  int ContinuousActive;

  // Callback interface to capture events when
  // placing the widget.
  static void SelectAction(vtkAbstractWidget*);
  static void AddFinalPointAction(vtkAbstractWidget*);
  static void MoveAction(vtkAbstractWidget*);
  static void EndSelectAction(vtkAbstractWidget*);
  static void DeleteAction(vtkAbstractWidget*);
  static void TranslateContourAction(vtkAbstractWidget*);
  static void ScaleContourAction(vtkAbstractWidget*);
  static void ResetAction(vtkAbstractWidget*);

  // Internal helper methods
  void SelectNode();
  void AddNode();

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

#endif