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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkSelectionLink.cxx,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.
=========================================================================*/
#include "vtkSelectionLink.h"
#include "vtkCommand.h"
#include "vtkIdTypeArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkSelection.h"
vtkCxxRevisionMacro(vtkSelectionLink, "$Revision: 1.1 $");
vtkStandardNewMacro(vtkSelectionLink);
//----------------------------------------------------------------------------
vtkSelectionLink::vtkSelectionLink()
{
this->SetNumberOfInputPorts(0);
// Start with an empty index selection
this->Selection = vtkSelection::New();
this->Selection->SetContentType(vtkSelection::INDICES);
vtkIdTypeArray* ids = vtkIdTypeArray::New();
this->Selection->SetSelectionList(ids);
ids->Delete();
}
//----------------------------------------------------------------------------
vtkSelectionLink::~vtkSelectionLink()
{
this->Selection->Delete();
}
//----------------------------------------------------------------------------
void vtkSelectionLink::SetSelection(vtkSelection* selection)
{
if (!selection)
{
vtkErrorMacro("Cannot set a null selection.");
return;
}
this->Selection->ShallowCopy(selection);
this->Modified();
this->InvokeEvent(vtkCommand::SelectionChangedEvent);
}
//----------------------------------------------------------------------------
int vtkSelectionLink::RequestData(
vtkInformation *vtkNotUsed(info),
vtkInformationVector **vtkNotUsed(inVector),
vtkInformationVector *outVector)
{
this->InvokeEvent(vtkCommand::StartEvent);
vtkInformation *outInfo = outVector->GetInformationObject(0);
vtkSelection* output = vtkSelection::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
if (this->Selection)
{
output->ShallowCopy(this->Selection);
}
return 1;
}
//----------------------------------------------------------------------------
void vtkSelectionLink::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Selection: " << (this->Selection ? "" : "null") << endl;
if (this->Selection)
{
this->Selection->PrintSelf(os, indent.GetNextIndent());
}
}
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