niftkDataNodePropertyListener.h

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

  NifTK: A software platform for medical image computing.

  Copyright (c) University College London (UCL). 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 in the top level directory for details.

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

#ifndef niftkDataStoragePropertyListener_h
#define niftkDataStoragePropertyListener_h

#include "niftkCoreExports.h"

#include <itkObject.h>

#include <mitkDataNode.h>
#include <mitkDataStorage.h>
#include <mitkMessage.h>

#include "niftkDataStorageListener.h"

namespace niftk
{

class PropertyChangedCommand;

class NIFTKCORE_EXPORT DataNodePropertyListener : public DataStorageListener
{

public:

  mitkClassMacro(DataNodePropertyListener, DataStorageListener)
  mitkNewMacro2Param(DataNodePropertyListener, const mitk::DataStorage::Pointer, const std::string&)
  mitkNewMacro3Param(DataNodePropertyListener, const mitk::DataStorage::Pointer, const std::string&, bool)
  mitkNewMacro3Param(DataNodePropertyListener, const mitk::DataStorage::Pointer, const std::string&, int)
  mitkNewMacro3Param(DataNodePropertyListener, const mitk::DataStorage::Pointer, const std::string&, float)
  mitkNewMacro3Param(DataNodePropertyListener, const mitk::DataStorage::Pointer, const std::string&, const std::string&)

  
  void SetRenderers(const std::vector<const mitk::BaseRenderer*>& renderers);

  mitk::Message2<mitk::DataNode*, const mitk::BaseRenderer*> NodePropertyChanged;

protected:

  DataNodePropertyListener(const mitk::DataStorage::Pointer dataStorage, const std::string& propertyName);
  DataNodePropertyListener(const mitk::DataStorage::Pointer dataStorage, const std::string& propertyName, bool defaultValue);
  DataNodePropertyListener(const mitk::DataStorage::Pointer dataStorage, const std::string& propertyName, int defaultValue);
  DataNodePropertyListener(const mitk::DataStorage::Pointer dataStorage, const std::string& propertyName, float defaultValue);
  DataNodePropertyListener(const mitk::DataStorage::Pointer dataStorage, const std::string& propertyName, const std::string& defaultValue);

  virtual ~DataNodePropertyListener();

  DataNodePropertyListener(const DataNodePropertyListener&); // Purposefully not implemented.
  DataNodePropertyListener& operator=(const DataNodePropertyListener&); // Purposefully not implemented.

  virtual void OnNodeAdded(mitk::DataNode* node) override;

  virtual void OnNodeRemoved(mitk::DataNode* node) override;

  virtual void OnNodeDeleted(mitk::DataNode* node) override;

  virtual void OnPropertyChanged(mitk::DataNode* node, const mitk::BaseRenderer* renderer);

private:

  void AddObservers(mitk::DataNode* node);

  void RemoveObservers(mitk::DataNode* node);

  virtual void AddAllObservers();

  virtual void RemoveAllObservers();

  std::string m_PropertyName;

  std::vector<const mitk::BaseRenderer*> m_Renderers;

  typedef std::map<mitk::DataNode*, std::vector<unsigned long> > NodePropertyObserverTags;

  NodePropertyObserverTags m_PropertyObserverTagsPerNode;

  enum DefaultValueType
  {
    NoType, BoolType, IntType, FloatType, StringType
  };

  DefaultValueType m_DefaultValueType;
  bool             m_BoolDefaultValue;
  int              m_IntDefaultValue;
  float            m_FloatDefaultValue;
  std::string      m_StringDefaultValue;

friend class PropertyChangedCommand;

};

}

#endif