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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 "itkExtractImageFilter.h"
#include "itkTestingMacros.h"
#include "itkCommand.h"
//
// This test ensures the abort event occurs and the ProcessAborted
// exception occurs.
//
namespace
{
bool onAbortCalled = false;
void
onProgress(itk::Object * obj, const itk::EventObject &, void *)
{
itk::ProcessObject::Pointer p(dynamic_cast<itk::ProcessObject *>(obj));
if (p.IsNull())
{
return;
}
if (p->GetProgress() > .1)
{
std::cout << "Setting AbortGenerateDataOn()" << std::endl;
p->AbortGenerateDataOn();
}
}
void
onAbort(itk::Object *, const itk::EventObject &, void *)
{
std::cout << "Abort Event" << std::endl;
onAbortCalled = true;
}
} // namespace
int
itkAbortProcessObjectTest(int, char *[])
{
// type alias to simplify the syntax
using ShortImage = itk::Image<short, 2>;
auto img = ShortImage::New();
// fill in an image
const ShortImage::IndexType index = { { 0, 0 } };
const ShortImage::SizeType size = { { 100, 100 } };
ShortImage::RegionType region{ index, size };
img->SetRegions(region);
img->Allocate();
itk::ImageRegionIterator<ShortImage> iterator(img, region);
short i = 0;
while (!iterator.IsAtEnd())
{
iterator.Set(i++);
++iterator;
}
// Create a filter
itk::ExtractImageFilter<ShortImage, ShortImage>::Pointer extract;
extract = itk::ExtractImageFilter<ShortImage, ShortImage>::New();
extract->SetInput(img);
// fill in an image
ShortImage::IndexType extractIndex = { { 0, 0 } };
ShortImage::SizeType extractSize = { { 99, 99 } };
ShortImage::RegionType extractRegion{ extractIndex, extractSize };
extract->SetExtractionRegion(extractRegion);
itk::CStyleCommand::Pointer progressCmd = itk::CStyleCommand::New();
progressCmd->SetCallback(onProgress);
progressCmd->SetObjectName("Progress Event");
extract->AddObserver(itk::ProgressEvent(), progressCmd);
itk::CStyleCommand::Pointer abortCmd = itk::CStyleCommand::New();
abortCmd->SetCallback(onAbort);
abortCmd->SetObjectName("Abort Event");
extract->AddObserver(itk::AbortEvent(), abortCmd);
std::cout << extract << std::endl;
try
{
extract->UpdateLargestPossibleRegion();
}
catch (const itk::ProcessAborted &)
{
if (onAbortCalled)
{
std::cout << "PASS: Abort event occurred and exception was thrown." << std::endl;
return EXIT_SUCCESS;
}
std::cout << "Caught expected abort exception, but didn't get Abort Event!";
}
std::cout << "Test FAILED!" << std::endl;
return EXIT_FAILURE;
}
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