mitkNodePredicateSource.h

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/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#ifndef MITKNODEPREDICATESOURCE_H_HEADER_INCLUDED_
#define MITKNODEPREDICATESOURCE_H_HEADER_INCLUDED_

#include "mitkDataNode.h"
#include "mitkDataStorage.h"
#include "mitkNodePredicateBase.h"
#include "mitkWeakPointer.h"

namespace mitk
{
  //##Documentation
  //## @brief Predicate that evaluates if the given node is a direct or indirect source node of a specific node
  //##
  //## @warning Calling CheckNode() can be computationally quite expensive for a large DataStorage.
  //##          Alternatively mitk::StandaloneDataStorage::GetSources() can be used
  //##
  //## @ingroup DataStorage
  class MITKCORE_EXPORT NodePredicateSource : public NodePredicateBase
  {
  public:
    mitkClassMacro(NodePredicateSource, NodePredicateBase);
    mitkNewMacro3Param(NodePredicateSource, mitk::DataNode *, bool, mitk::DataStorage *);

    //##Documentation
    //## @brief Standard Destructor
    virtual ~NodePredicateSource();

    //##Documentation
    //## @brief Checks, if m_BaseNode is a source node of childNode  (e.g. if childNode "was created from" m_BaseNode)
    virtual bool CheckNode(const mitk::DataNode *childNode) const override;

  protected:
    //##Documentation
    //## @brief Constructor - This class can either search only for direct source objects or for all source objects
    NodePredicateSource(mitk::DataNode *n, bool allsources, mitk::DataStorage *ds);

    mitk::WeakPointer<mitk::DataNode> m_BaseNode;
    bool m_SearchAllSources;
    mitk::WeakPointer<mitk::DataStorage> m_DataStorage;
  };

} // namespace mitk

#endif /* MITKNODEPREDICATESOURCE_H_HEADER_INCLUDED_ */