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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.
*
*=========================================================================*/
#include <iostream>
#include "itkAffineTransform.h"
#include "itkSimpleDataObjectDecorator.h"
#include "itkDataObjectDecorator.h"
#include "itkAutoPointerDataObjectDecorator.h"
#include "itkTestingMacros.h"
namespace
{
template <typename CharType, typename TraitsType, typename MemberType, typename AllocatorType>
std::basic_ostream<CharType, TraitsType> &
operator<<(std::basic_ostream<CharType, TraitsType> & os, const std::vector<MemberType, AllocatorType> & p)
{
os << "vector<" << typeid(MemberType).name() << "> with " << p.size() << " elements " << std::endl;
return os;
}
} // namespace
int
itkDecoratorTest(int, char *[])
{
using FloatObjectType = itk::SimpleDataObjectDecorator<float>;
auto f = FloatObjectType::New();
f->Set(5.0);
std::cout << "Value of f: " << f->Get() << std::endl;
std::cout << "FloatDataObject: " << f << std::endl;
using TransformType = itk::AffineTransform<double, 3>;
using TransformObjectType = itk::DataObjectDecorator<TransformType>;
auto decoratedTransform = TransformObjectType::New();
auto transformObject = TransformType::New();
const TransformType * constTransformObject = transformObject;
transformObject->Scale(5.0);
decoratedTransform->Set(constTransformObject);
const itk::ModifiedTimeType t1 = decoratedTransform->GetMTime();
transformObject->Modified();
ITK_TEST_EXPECT_TRUE(t1 < decoratedTransform->GetMTime());
auto decoratedTransform2 = TransformObjectType::New();
decoratedTransform2->Graft(decoratedTransform);
ITK_TEST_EXPECT_EQUAL(decoratedTransform2->Get(), decoratedTransform->Get());
const itk::ModifiedTimeType t2 = decoratedTransform->GetMTime();
decoratedTransform2->GetModifiable()->Modified();
ITK_TEST_EXPECT_TRUE(t2 < decoratedTransform->GetMTime());
std::cout << "Value of decoratedTransform: ";
decoratedTransform->Get()->Print(std::cout);
std::cout << "TransformDataObject: " << decoratedTransform;
using TransformBaseType = itk::Transform<double, 3>;
using TransformBaseObjectType = itk::DataObjectDecorator<TransformBaseType>;
auto decoratedBaseTransform = TransformBaseObjectType::New();
// NOTE: GetPointer is needed to force selection of the correct overloaded function signature.
decoratedBaseTransform->Graft(decoratedTransform.GetPointer());
ITK_TEST_EXPECT_TRUE(decoratedBaseTransform->Get() != nullptr);
decoratedBaseTransform->ReleaseData();
ITK_TEST_EXPECT_TRUE(decoratedBaseTransform->Get() == nullptr);
// NOTE: GetPointer is needed to force selection of the correct overloaded function signature.
decoratedBaseTransform->Graft(f.GetPointer());
ITK_TEST_EXPECT_TRUE(decoratedBaseTransform->Get() == nullptr);
decoratedBaseTransform->Graft(static_cast<itk::DataObject *>(nullptr));
// NOTE: GetPointer is needed to force selection of the correct overloaded function signature.
decoratedBaseTransform->Graft(decoratedTransform.GetPointer());
ITK_TEST_EXPECT_TRUE(decoratedBaseTransform->Get() != nullptr);
decoratedBaseTransform->Graft(static_cast<itk::DataObject *>(nullptr));
ITK_TEST_EXPECT_TRUE(decoratedBaseTransform->Get() != nullptr);
decoratedTransform->ReleaseData();
decoratedTransform->Graft(decoratedBaseTransform);
ITK_TEST_EXPECT_TRUE(decoratedTransform->Get() == nullptr);
using VectorType = std::vector<float>;
using VectorPointer = VectorType *;
using VectorObjectType = itk::SimpleDataObjectDecorator<VectorType>;
using VectorPointerObjectType = itk::AutoPointerDataObjectDecorator<VectorType>;
VectorType v;
v.resize(5);
std::cout << v << std::endl;
auto vo = VectorObjectType::New();
vo->Set(v);
std::cout << vo << std::endl;
// The following code block will NOT cause a memory leak because the
// ownership of the dynamically allocated memory is passed to the
// AutoPointerDataObjectDecorator
{
VectorPointer vp;
vp = new VectorType;
vp->resize(3);
std::cout << *vp << std::endl;
auto vop = VectorPointerObjectType::New();
vop->Set(vp);
std::cout << vop;
VectorType * vec = vop->Get();
const VectorType * constVec = vop->Get();
std::cout << "AutoPointerDataObjectDecorator::Get: " << vec << std::endl;
std::cout << "AutoPointerDataObjectDecorator::Get const: " << constVec << std::endl;
}
// The following code block will cause a memory leak because the
// decorator does not deallocate the memory that was passed in on a
// pointer. The AutoPointerDataObjectDecorator does delete the memory.
// using VectorPointerObjectType2 = itk::SimpleDataObjectDecorator<VectorPointer>;
//{
// VectorPointer vp2;
// vp2 = new VectorType;
// vp2->resize(4);
// std::cout << *vp2 << std::endl;
// auto vop2 = VectorPointerObjectType2::New();
// vop2->Set(vp2);
// std::cout << vop2;
//}
std::cout << "Test finished." << std::endl;
return EXIT_SUCCESS;
}
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