File: vtkSITimeLabelProperty.cxx

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

  Program:   ParaView
  Module:    vtkSITimeLabelProperty.cxx

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 "vtkSITimeLabelProperty.h"

#include "vtkAlgorithm.h"
#include "vtkClientServerInterpreter.h"
#include "vtkClientServerStream.h"
#include "vtkInformation.h"
#include "vtkObjectFactory.h"
#include "vtkPVInformationKeys.h"
#include "vtkSMMessage.h"
#include "vtkStreamingDemandDrivenPipeline.h"

vtkStandardNewMacro(vtkSITimeLabelProperty);
//----------------------------------------------------------------------------
vtkSITimeLabelProperty::vtkSITimeLabelProperty()
{
}

//----------------------------------------------------------------------------
vtkSITimeLabelProperty::~vtkSITimeLabelProperty()
{
}

//----------------------------------------------------------------------------
void vtkSITimeLabelProperty::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os, indent);
}
//----------------------------------------------------------------------------
bool vtkSITimeLabelProperty::Pull(vtkSMMessage* msgToFill)
{
  if (!this->InformationOnly)
    {
    return false;
    }

  // Get reference to the algorithm
  vtkAlgorithm *algo = vtkAlgorithm::SafeDownCast(this->GetVTKObject());

  if(!algo)
    {
    return false;
    }

  vtkInformation* outInfo = algo->GetExecutive()->GetOutputInformation(0);

  // If no information just exit
  if (!outInfo)
    {
    return false;
    }

  // Create property and add it to the message
  ProxyState_Property *prop = msgToFill->AddExtension(ProxyState::property);
  prop->set_name(this->GetXMLName());
  Variant *var = prop->mutable_value();
  var->set_type(Variant::STRING);

  // Else find out
  if (outInfo->Has(vtkPVInformationKeys::TIME_LABEL_ANNOTATION()))
    {
    const char* label =
        outInfo->Get(vtkPVInformationKeys::TIME_LABEL_ANNOTATION());
    var->add_txt(label);
    return true;
    }

  // No value does not mean failure. So just return true
  return true;
}