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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 itkProgressTransformer_h
#define itkProgressTransformer_h
#include "itkProcessObject.h"
#include "itkCommand.h"
namespace itk
{
/**
* \class ProgressTransformer
* \brief Transforms progress updates from [0%, 100%] to desired scale.
*
* This class is designed to be allocated on the stack. Code sample:
*
* ProgressTransformer progress2( 0.55f, 0.6f, this );
* multiThreader->ParallelizeArray(0, m_SomeArray.size(),
* [this]( SizeValueType index ) { this->ComputeInParallel( index ); },
* progress2.GetProcessObject() );
*
*
* \sa ProgressReporter, ProcessObject
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT ProgressTransformer
{
public:
ITK_DISALLOW_COPY_AND_MOVE(ProgressTransformer);
ProgressTransformer(float start, float end, ProcessObject * targetFilter);
ProcessObject *
GetProcessObject()
{
return m_Dummy.GetPointer();
}
void
UpdateProgress();
~ProgressTransformer();
private:
float m_Start;
float m_End;
ProcessObject * m_TargetFilter;
ProcessObject::Pointer m_Dummy;
using CommandType = SimpleMemberCommand<ProgressTransformer>;
CommandType::Pointer m_ProgressCommand;
unsigned long m_ProgressTag;
};
} // end namespace itk
#endif // itkProgressTransformer_h
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