text: /*
  Copyright (c) 2011, Siemens Corporate Research a Division of Siemens Corporation 
  All rights reserved.
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  
    http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  */ 
   
   
  # include "SoVtkImageRange3D.h"
  # include "SoVtkUtils.h"
  
  # include "vtkAlgorithmOutput.h"
  # include "vtkImageData.h"
  
  
  SO_ENGINE_SOURCE( SoVtkImageRange3D )
  
  SoVtkImageRange3D::SoVtkImageRange3D()
  {
  	SO_ENGINE_CONSTRUCTOR(SoVtkImageRange3D);
  
  	mObject = vtkImageRange3D::New();
  	mObject->Register(0);
  	mObject->SetGlobalWarningDisplay(0);
  
  	vtkImageRange3D *aImageRange3D = vtkImageRange3D::New();
  	double *x = 0;
  	int *y = 0;
  	float *z = 0;
  
  	SO_ENGINE_ADD_INPUT(KernelSize, ());
  	KernelSize.setFormat("int int int");
  
  	SO_ENGINE_ADD_INPUT(NumberOfThreads, (0));
  	NumberOfThreads.setValue(aImageRange3D->GetNumberOfThreads());
  
  	SO_ENGINE_ADD_INPUT(InputConnection, (0));
  
  	aImageRange3D->Delete();
  
  
  	SO_ENGINE_ADD_OUTPUT( Output, SoSFVtkObject );
  	mOutput = 0;
  	SO_ENGINE_ADD_OUTPUT( OutputPort, SoSFVtkAlgorithmOutput );
  	mOutputPort = 0;
  
  
  	addCalled = 0;
  }
  
  SoVtkImageRange3D::~SoVtkImageRange3D()
  {
  	// Deletion of the objects if they exist
  	if ( mOutput )
  	{
  	
  		mOutput->unref();
  		mOutput = 0;
  	}
  	
  	if ( mOutputPort )
  	{
  	
  		mOutputPort->unref();
  		mOutputPort = 0;
  	}
  	
  	if ( mObject )
  	{
  		mObject->UnRegister(0);
  		mObject->Delete();
  		mObject = 0;
  	}
  	
  
  }
  
  void SoVtkImageRange3D::initClass()
  {
  	SO_ENGINE_INIT_CLASS( SoVtkImageRange3D, SoEngine, "Engine" );
  }
  
  void SoVtkImageRange3D::evaluate()
  {
  	try
  	{
  		// Get the input type(s)
  		SoVtkAlgorithmOutput *inputPortPtr = InputConnection.getValue();
  		
  		if (inputPortPtr)
  			mObject->SetInputConnection(inputPortPtr->getPointer());
  
  		// Deletion of the objects if they exist
  		if ( mOutput )
  		{
  		
  			mOutput->unref();
  			mOutput = 0;
  		}
  		
  		if ( mOutputPort )
  		{
  		
  			mOutputPort->unref();
  			mOutputPort = 0;
  		}
  		
  		if ( addCalled )
  		{
  			reset();
  			addCalled = 0;
  		}
  
  		mObject->GetOutput()->Register(0);
  		mOutput = new SoVtkObject();
  		mOutput->ref();
  		mOutput->setPointer( mObject->GetOutput() );
  
  		if ( mObject->GetNumberOfOutputPorts() > 0 )
  		{
  			mObject->GetOutputPort()->Register(0);
  			mOutputPort = new SoVtkAlgorithmOutput();
  			mOutputPort->ref();
  			mOutputPort->setPointer( mObject->GetOutputPort() );
  		}
  
  	}
  	catch(...)
  	{
  		SoDebugError::post( __FILE__, "Unknown Exception" );
  		return;
  	}
  	SO_ENGINE_OUTPUT( Output, SoSFVtkObject, setValue( mOutput ) );
  	SO_ENGINE_OUTPUT( OutputPort, SoSFVtkAlgorithmOutput, setValue( mOutputPort ) );
  }
  
  
  void SoVtkImageRange3D::inputChanged(SoField * f)
  {
  	// Get the KernelSize value
  	if ( f == &KernelSize )
  	{
  		SbVariant *vKernelSize = (SbVariant *)KernelSize.getValues(0);
  		SoInput input;
  		int nb_fields = KernelSize.getNum();
  
  		int val0;
  		int val1;
  		int val2;
  		for (int i=0; i < nb_fields; i++)
  		{
  			input.setBuffer((void *)vKernelSize[i].getField().getString(),256);
  			input.read(val0);
  			input.read(val1);
  			input.read(val2);
  			mObject->SetKernelSize( 
  				(int) val0,
  				(int) val1,
  				(int) val2
  			);
  		}
  	}
  
  	// Get the NumberOfThreads value
  	if ( f == &NumberOfThreads )
  		SO_VTK_SET_FIELD_VALUE( mObject, NumberOfThreads);
  
  	mObject->Update();
  }
  
  void SoVtkImageRange3D::reset()
  {
  	mObject->UnRegister(0);
  	mObject->Delete();
  	mObject = 0;
  	mObject = vtkImageRange3D::New();
  	mObject->Register(0);
  	mObject->SetGlobalWarningDisplay(0);
  	// Get the input type(s)
  	SoVtkAlgorithmOutput *inputPortPtr = InputConnection.getValue();
  	
  	if (inputPortPtr)
  		mObject->SetInputConnection(inputPortPtr->getPointer());
  
  	// Get the KernelSize value
  	if (addCalled == 1)
  	{
  		SbVariant *vKernelSize = (SbVariant *)KernelSize.getValues(0);
  		SoInput input;
  		int nb_fields = KernelSize.getNum();
  
  		int val0;
  		int val1;
  		int val2;
  		for (int i=0; i < nb_fields; i++)
  		{
  			input.setBuffer((void *)vKernelSize[i].getField().getString(),256);
  			input.read(val0);
  			input.read(val1);
  			input.read(val2);
  			mObject->SetKernelSize( 
  				(int) val0,
  				(int) val1,
  				(int) val2
  			);
  		}
  	}
  
  	// Get the NumberOfThreads value
  	
  		SO_VTK_SET_FIELD_VALUE( mObject, NumberOfThreads);
  
  	mObject->Update();
  }
  