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

  Program:   Visualization Toolkit
  Module:    vtkIOSRenderWindowInteractor.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 vtkIOSRenderWindowInteractor_h
#define vtkIOSRenderWindowInteractor_h

#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkRenderWindowInteractor.h"

class VTKRENDERINGOPENGL2_EXPORT vtkIOSRenderWindowInteractor : public vtkRenderWindowInteractor
{
public:
  static vtkIOSRenderWindowInteractor *New();

  vtkTypeMacro(vtkIOSRenderWindowInteractor,vtkRenderWindowInteractor);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual void Initialize();


  virtual void Enable();
  virtual void Disable();

  void TerminateApp();


  static void SetClassExitMethod(void (*f)(void *), void *arg);
  static void SetClassExitMethodArgDelete(void (*f)(void *));

  virtual void ExitCallback();


  int GetContactIndex(void *ptr);
  void ClearContactIndex(void *ptr);

//  int GetButtonDown();
//  void SetButtonDown(int button);

protected:
  vtkIOSRenderWindowInteractor();
  ~vtkIOSRenderWindowInteractor();


  void SetTimerDictionary(void *dictionary);    // Really an NSMutableDictionary*
  void *GetTimerDictionary();


  static void (*ClassExitMethod)(void *);
  static void (*ClassExitMethodArgDelete)(void *);
  static void *ClassExitMethodArg;

  void *IDLookup[VTKI_MAX_POINTERS];


  virtual int InternalCreateTimer(int timerId, int timerType, unsigned long duration);
  virtual int InternalDestroyTimer(int platformTimerId);

  virtual void StartEventLoop();


  void SetIOSManager(void *manager);
  void *GetIOSManager();

private:
  vtkIOSRenderWindowInteractor(const vtkIOSRenderWindowInteractor&);  // Not implemented.
  void operator=(const vtkIOSRenderWindowInteractor&);  // Not implemented.

  // Important: this class cannot contain Objective-C instance
  // variables for 2 reasons:
  // 1) C++ files include this header
  // 2) because of garbage collection
  // Instead, use the IOSManager dictionary to keep a collection
  // of what would otherwise be Objective-C instance variables.
  void    *IOSManager;        // Really an NSMutableDictionary*

};

#endif