vtkSeedWidget.h

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

  Program:   Visualization Toolkit
  Module:    vtkSeedWidget.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 vtkSeedWidget_h
#define vtkSeedWidget_h

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

class vtkHandleRepresentation;
class vtkHandleWidget;
class vtkSeedList;
class vtkSeedRepresentation;


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


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

  virtual void SetEnabled(int);

  virtual void SetCurrentRenderer( vtkRenderer * );

  virtual void SetInteractor( vtkRenderWindowInteractor * );

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

  vtkSeedRepresentation *GetSeedRepresentation()
    {return reinterpret_cast<vtkSeedRepresentation*>(this->WidgetRep);}

  void CreateDefaultRepresentation();

  virtual void SetProcessEvents(int);

  virtual void CompleteInteraction();

  virtual void RestartInteraction();

  virtual vtkHandleWidget * CreateNewHandle();

  void DeleteSeed(int n);

  vtkHandleWidget * GetSeed( int n );


  vtkGetMacro( WidgetState, int );

  // The state of the widget

  enum
  {
    Start = 1,
    PlacingSeeds = 2,
    PlacedSeeds = 4,
    MovingSeed = 8
  };

protected:
  vtkSeedWidget();
  ~vtkSeedWidget();


  int WidgetState;

  // Callback interface to capture events when
  // placing the widget.
  static void AddPointAction( vtkAbstractWidget* );
  static void CompletedAction( vtkAbstractWidget* );
  static void MoveAction( vtkAbstractWidget* );
  static void EndSelectAction( vtkAbstractWidget* );
  static void DeleteAction( vtkAbstractWidget* );

  // The positioning handle widgets
  vtkSeedList *Seeds;

  // Manipulating or defining ?
  int Defining;

private:
  vtkSeedWidget(const vtkSeedWidget&) VTK_DELETE_FUNCTION;
  void operator=(const vtkSeedWidget&) VTK_DELETE_FUNCTION;
};

#endif