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

  Program:   Visualization Toolkit
  Module:    vtkTransformCollection.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$


Copyright (c) 1993-2000 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

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   this list of conditions and the following disclaimer.

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   and/or other materials provided with the distribution.

 * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
   of any contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

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=========================================================================*/
// .NAME vtkTransformCollection - maintain a list of transforms

// .SECTION Description
// vtkTransformCollection is an object that creates and manipulates lists of
// objects of type vtkTransform.

// .SECTION see also
// vtkCollection vtkTransform

#ifndef __vtkTransformCollection_h
#define __vtkTransformCollection_h

#include "vtkCollection.h"
#include "vtkTransform.h"

class VTK_EXPORT vtkTransformCollection : public vtkCollection
{
public:
  vtkTypeMacro(vtkTransformCollection,vtkCollection);
  static vtkTransformCollection *New();

  // Description:
  // Add a Transform to the list.
  void AddItem(vtkTransform *);

  // Description:
  // Get the next Transform in the list. Return NULL when the end of the
  // list is reached.
  vtkTransform *GetNextItem();

protected:
  vtkTransformCollection() {};
  ~vtkTransformCollection() {};
  vtkTransformCollection(const vtkTransformCollection&) {};
  void operator=(const vtkTransformCollection&) {};


private:
  // hide the standard AddItem from the user and the compiler.
  void AddItem(vtkObject *o) { this->vtkCollection::AddItem(o); };

};

inline void vtkTransformCollection::AddItem(vtkTransform *t) 
{
  this->vtkCollection::AddItem((vtkObject *)t);
}

inline vtkTransform *vtkTransformCollection::GetNextItem() 
{ 
  return (vtkTransform *)(this->GetNextItemAsObject());
}

#endif
