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

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);

  virtual void SetEnabled(int);

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

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

  void CreateDefaultRepresentation();

  void CloseLoop();


  vtkSetMacro(WidgetState,int);


  vtkGetMacro(WidgetState,int);


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


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


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

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

  // The state of the widget

  enum {Start,Define,Manipulate};

protected:
  vtkContourWidget();
  ~vtkContourWidget();

  int WidgetState;
  int CurrentHandle;
  int AllowNodePicking;
  int FollowCursor;
  int 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&) VTK_DELETE_FUNCTION;
  void operator=(const vtkContourWidget&) VTK_DELETE_FUNCTION;
};

#endif