mitkNodePredicateDataType.h

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/*============================================================================
 
The Medical Imaging Interaction Toolkit (MITK)
 
Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.
 
Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.
 
============================================================================*/
 
#ifndef mitkNodePredicateDataType_h
#define mitkNodePredicateDataType_h
 
#include "mitkDataNode.h"
#include "mitkNodePredicateBase.h"
#include <string>
 
namespace mitk
{
  //##Documentation
  //## @brief Predicate that evaluates if the given DataNodes data object is of a specific data type
  //##
  //## The data type must be specified in the constructor as a string. The string must equal the result
  //## value of the requested data types GetNameOfClass() method.
  //##
  //## @ingroup DataStorage
  class MITKCORE_EXPORT NodePredicateDataType : public NodePredicateBase
  {
  public:
    mitkClassMacro(NodePredicateDataType, NodePredicateBase);
    mitkNewMacro1Param(NodePredicateDataType, const char *);
 
    //##Documentation
    //## @brief Standard Destructor
    ~NodePredicateDataType() override;
 
    //##Documentation
    //## @brief Checks, if the nodes data object is of a specific data type
    bool CheckNode(const mitk::DataNode *node) const override;
 
  protected:
    //##Documentation
    //## @brief Protected constructor, use static instantiation functions instead
    NodePredicateDataType(const char *datatype);
 
    std::string m_ValidDataType;
  };
 
  template <class T>
  class TNodePredicateDataType : public NodePredicateBase
  {
  public:
    mitkClassMacro(TNodePredicateDataType, NodePredicateBase);
    itkFactorylessNewMacro(TNodePredicateDataType);
 
    ~TNodePredicateDataType() override {}
    //##Documentation
    //## @brief Checks, if the nodes data object is of a specific data type (casts)
    bool CheckNode(const mitk::DataNode *node) const override
    {
      return node && node->GetData() && dynamic_cast<T *>(node->GetData());
    }
 
  protected:
    //##Documentation
    //## @brief Protected constructor, use static instantiation functions instead
    TNodePredicateDataType() {}
  };
 
} // namespace mitk
 
#endif