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

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) override;

  void SetEnabled(int) override;

  void SetCurrentRenderer(vtkRenderer*) override;

  void SetInteractor(vtkRenderWindowInteractor*) override;

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

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

  void CreateDefaultRepresentation() override;

  void SetProcessEvents(vtkTypeBool) override;

  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() override;

  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&) = delete;
  void operator=(const vtkSeedWidget&) = delete;
};

#endif