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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkTrivialProducer.h,v $
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.
=========================================================================*/
// .NAME vtkTrivialProducer - Producer for stand-alone data objects.
// .SECTION Description
// vtkTrivialProducer allows stand-alone data objects to be connected
// as inputs in a pipeline. All data objects that are connected to a
// pipeline involving vtkAlgorithm must have a producer. This trivial
// producer allows data objects that are hand-constructed in a program
// without another vtk producer to be connected.
#ifndef __vtkTrivialProducer_h
#define __vtkTrivialProducer_h
#include "vtkAlgorithm.h"
class vtkDataObject;
class VTK_FILTERING_EXPORT vtkTrivialProducer : public vtkAlgorithm
{
public:
static vtkTrivialProducer *New();
vtkTypeRevisionMacro(vtkTrivialProducer,vtkAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Process upstream/downstream requests trivially. The associated
// output data object is never modified, but it is queried to
// fulfill requests.
virtual int ProcessRequest(vtkInformation*,
vtkInformationVector**,
vtkInformationVector*);
// Description:
// Set the data object that is "produced" by this producer. It is
// never really modified.
virtual void SetOutput(vtkDataObject* output);
// Description:
// The modified time of this producer is the newer of this object or
// the assigned output.
virtual unsigned long GetMTime();
protected:
vtkTrivialProducer();
~vtkTrivialProducer();
virtual int FillInputPortInformation(int, vtkInformation*);
virtual int FillOutputPortInformation(int, vtkInformation*);
virtual vtkExecutive* CreateDefaultExecutive();
// The real data object.
vtkDataObject* Output;
virtual void ReportReferences(vtkGarbageCollector*);
private:
vtkTrivialProducer(const vtkTrivialProducer&); // Not implemented.
void operator=(const vtkTrivialProducer&); // Not implemented.
};
#endif
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