mitkLevelWindowManager.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 mitkLevelWindowManager_h
#define mitkLevelWindowManager_h
 
// mitk core
#include <mitkBaseProperty.h>
#include <mitkDataStorage.h>
#include <mitkLevelWindowProperty.h>
 
//  c++
#include <map>
#include <utility>
 
namespace mitk
{
  class MITKCORE_EXPORT LevelWindowManager : public itk::Object
  {
  public:
 
    mitkClassMacroItkParent(LevelWindowManager, itk::Object);
    itkFactorylessNewMacro(Self);
    itkCloneMacro(Self);
 
    void SetDataStorage(DataStorage* dataStorage);
 
    DataStorage *GetDataStorage();
 
    void SetAutoTopMostImage(bool autoTopMost, const DataNode *removedNode = nullptr);
    void SetSelectedImages(bool selectedImagesMode, const DataNode *removedNode = nullptr);
 
    void RecalculateLevelWindowForSelectedComponent(const itk::EventObject&);
    void Update(const itk::EventObject&);
    void UpdateSelected(const itk::EventObject&);
    void SetLevelWindowProperty(LevelWindowProperty::Pointer levelWindowProperty);
    void SetLevelWindow(const LevelWindow &levelWindow);
    LevelWindowProperty::Pointer GetLevelWindowProperty() const;
    const LevelWindow &GetLevelWindow() const;
    bool IsAutoTopMost() const;
    bool IsSelectedImages() const;
    void DataStorageAddedNode(const DataNode *dataNode = nullptr);
    void DataStorageRemovedNode(const DataNode *dataNode = nullptr);
    void OnPropertyModified(const itk::EventObject&);
    Image *GetCurrentImage() const;
    int GetNumberOfObservers() const;
    DataStorage::SetOfObjects::ConstPointer GetRelevantNodes() const;
 
  private:
    LevelWindowManager();
    ~LevelWindowManager() override;
 
    DataStorage::Pointer m_DataStorage;
    LevelWindowProperty::Pointer m_LevelWindowProperty;
 
    typedef std::pair<unsigned long, DataNode::Pointer> PropDataPair;
    typedef std::map<PropDataPair, BaseProperty::Pointer> ObserverToPropertyValueMap;
 
    ObserverToPropertyValueMap m_ObserverToVisibleProperty;
    ObserverToPropertyValueMap m_ObserverToLayerProperty;
    ObserverToPropertyValueMap m_ObserverToRenderingModeProperty;
    ObserverToPropertyValueMap m_ObserverToDisplayedComponentProperty;
    ObserverToPropertyValueMap m_ObserverToLevelWindowImageProperty;
    ObserverToPropertyValueMap m_ObserverToSelectedProperty;
 
    void UpdateObservers();
    void ClearPropertyObserverMaps();
    void CreatePropertyObserverMaps();
 
    bool HasLevelWindowRenderingMode(DataNode *dataNode) const;
 
    // This variable holds a data node which will be deleted from the datastorage immediately.
    const DataNode *m_NodeMarkedToDelete;
 
    bool m_AutoTopMost;
    bool m_SelectedImagesMode;
    unsigned long m_PropertyModifiedTag;
    Image *m_CurrentImage;
    std::vector<DataNode::Pointer> m_DataNodesForLevelWindow;
    bool m_IsPropertyModifiedTagSet;
    bool m_LevelWindowMutex;
  };
}
 
#endif