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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* 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.
*
*=========================================================================*/
#ifndef itkSpatialObjectDuplicator_hxx
#define itkSpatialObjectDuplicator_hxx
namespace itk
{
template <typename TInputSpatialObject>
SpatialObjectDuplicator<TInputSpatialObject>::SpatialObjectDuplicator()
{
m_Input = nullptr;
m_DuplicateSpatialObject = nullptr;
m_InternalSpatialObjectTime = 0;
}
template <typename TInputSpatialObject>
void
SpatialObjectDuplicator<TInputSpatialObject>::CopyObject(const InternalSpatialObjectType * source,
InternalSpatialObjectType * destination)
{
using SOType = itk::SpatialObject<TInputSpatialObject::ObjectDimension>;
typename SOType::Pointer newSO = source->Clone();
destination->AddChild(newSO);
destination->Update();
using ChildrenListType = typename TInputSpatialObject::ChildrenListType;
ChildrenListType * children = source->GetChildren();
typename ChildrenListType::const_iterator it = children->begin();
while (it != children->end())
{
this->CopyObject(*it, newSO);
++it;
}
delete children;
}
template <typename TInputSpatialObject>
void
SpatialObjectDuplicator<TInputSpatialObject>::Update()
{
if (!m_Input)
{
itkExceptionMacro("Input SpatialObject has not been connected");
}
// Update only if the input SpatialObject has been modified
ModifiedTimeType t, t1, t2;
t1 = m_Input->GetPipelineMTime();
t2 = m_Input->GetMTime();
t = (t1 > t2 ? t1 : t2);
if (t == m_InternalSpatialObjectTime)
{
return; // No need to update
}
// Cache the timestamp
m_InternalSpatialObjectTime = t;
m_DuplicateSpatialObject = m_Input->Clone();
m_DuplicateSpatialObject->Update();
// Create the children
using ChildrenListType = typename TInputSpatialObject::ChildrenListType;
ChildrenListType * children = m_Input->GetChildren();
typename ChildrenListType::const_iterator it = children->begin();
while (it != children->end())
{
this->CopyObject(*it, m_DuplicateSpatialObject);
++it;
}
delete children;
}
template <typename TInputSpatialObject>
void
SpatialObjectDuplicator<TInputSpatialObject>::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Input SpatialObject: " << m_Input << std::endl;
os << indent << "Output SpatialObject: " << m_DuplicateSpatialObject << std::endl;
os << indent << "Internal SpatialObject Time: " << m_InternalSpatialObjectTime << std::endl;
}
} // end namespace itk
#endif
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