vtkDataIOManager.h

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#ifndef __vtkDataIOManager_h
#define __vtkDataIOManager_h

// MRML includes
#include "vtkMRML.h"
class vtkCacheManager;
class vtkDataFileFormatHelper;
class vtkDataTransfer;
class vtkMRMLNode;

// VTK includes
#include <vtkObject.h>
class vtkCallbackCommand;
class vtkCollection;

#ifndef vtkObjectPointer
#define vtkObjectPointer(xx) (reinterpret_cast <vtkObject **>( (xx) ))
#endif

class VTK_MRML_EXPORT vtkDataIOManager : public vtkObject
{
  public:

  static vtkDataIOManager *New();
  vtkTypeMacro(vtkDataIOManager,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
  vtkGetObjectMacro ( DataTransferCollection, vtkCollection );
  void SetDataTransferCollection(vtkCollection* dataTransfer );
  vtkGetObjectMacro ( CacheManager, vtkCacheManager );
  virtual void SetCacheManager(vtkCacheManager* cacheManager);
  vtkGetMacro ( EnableAsynchronousIO, int );
  vtkGetMacro ( InUpdateCallbackFlag, int );
  vtkSetMacro ( InUpdateCallbackFlag, int );

  vtkDataFileFormatHelper* GetFileFormatHelper();
  virtual void SetFileFormatHelper(vtkDataFileFormatHelper* helper);

  void SetEnableAsynchronousIO ( int );

  vtkDataTransfer *AddNewDataTransfer ( );
  vtkDataTransfer *AddNewDataTransfer ( vtkMRMLNode *node);
  void AddNewDataTransfer ( vtkDataTransfer *transfer, vtkMRMLNode *node);
  void AllTransfersClearedFromCache();

  void AddDataTransfer ( vtkDataTransfer *transfer );
  void RemoveDataTransfer ( vtkDataTransfer *transfer );
  void RemoveDataTransfer ( int transferID );
  int GetNumberOfDataTransfers();
  vtkDataTransfer *GetDataTransfer ( int transferID );
  void ClearDataTransfers ( );
  int GetUniqueTransferID ( );

  void QueueRead ( vtkMRMLNode *node );

  void QueueWrite ( vtkMRMLNode *node );

  void SetTransferStatus(vtkDataTransfer *transfer, int status);
  int GetTransferStatus( vtkDataTransfer *transfer);

  const char* GetTransferStatusString( vtkDataTransfer *transfer );

  virtual void ProcessTransferUpdates ( vtkObject *caller, unsigned long event, void *callData );

  enum
    {
      RemoteReadEvent = 19001,
      RemoteWriteEvent,
      LocalReadEvent,
      LocalWriteEvent,
      NewTransferEvent,
      TransferUpdateEvent,
      SettingsUpdateEvent,
      DisplayManagerWindowEvent,
      RefreshDisplayEvent
    };

  static void TransferUpdateCallback ( vtkObject *__caller,
                                       unsigned long eid, void *__clientData, void *callData );

  vtkCallbackCommand *TransferUpdateCommand;
  int InUpdateCallbackFlag;

 private:
  vtkCollection *DataTransferCollection;
  vtkCacheManager *CacheManager;
  int EnableAsynchronousIO;

  vtkDataFileFormatHelper* FileFormatHelper;

 protected:
  vtkDataIOManager();
  virtual ~vtkDataIOManager();
  vtkDataIOManager(const vtkDataIOManager&);
  void operator=(const vtkDataIOManager&);

};

#endif