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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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.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 itkDataObjectIterator_h
#define itkDataObjectIterator_h
#include "itkProcessObject.h"
namespace itk
{
/** \class DataObjectIterator
* \brief A forward iterator over the DataObject of a ProcessObject
* \author Gaetan Lehmann. Biologie du Developpement et de la Reproduction, INRA de Jouy-en-Josas, France.
* \ingroup ITKCommon
*/
class DataObjectIterator
{
public:
typedef DataObject::DataObjectIdentifierType DataObjectIdentifierType;
DataObjectIterator() {}
DataObjectIterator(const DataObjectIterator & iter)
{
m_Iterator = iter.m_Iterator;
m_Begin = iter.m_Begin;
m_End = iter.m_End;
}
DataObjectIterator & operator=(const DataObjectIterator & iter)
{
if(this != &iter)
{
m_Iterator = iter.m_Iterator;
m_Begin = iter.m_Begin;
m_End = iter.m_End;
}
return *this;
}
DataObject * GetDataObject()
{
return m_Iterator->second;
}
const DataObjectIdentifierType & GetName() const
{
return m_Iterator->first;
}
DataObjectIterator operator++(int)
{
DataObjectIterator tmp = *this;
++(*this);
return tmp;
}
DataObjectIterator & operator++()
{
++m_Iterator;
return *this;
}
bool operator==(const DataObjectIterator & iter) const
{
return m_Iterator == iter.m_Iterator && m_Begin == iter.m_Begin && m_End == iter.m_End;
}
bool operator!=(const DataObjectIterator & iter) const
{
return !( *this == iter );
}
void GoToBegin()
{
m_Iterator = m_Begin;
}
bool IsAtEnd() const
{
return m_Iterator == m_End;
}
protected:
typedef ProcessObject::DataObjectPointerMap::iterator InternalIteratorType;
InternalIteratorType m_Iterator;
InternalIteratorType m_Begin;
InternalIteratorType m_End;
};
}
#endif
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