.. _program_listing_file_MRML_vtkMRMLLayerDMSelectionObserver.h:

Program Listing for File vtkMRMLLayerDMSelectionObserver.h
==========================================================

|exhale_lsh| :ref:`Return to documentation for file <file_MRML_vtkMRMLLayerDMSelectionObserver.h>` (``MRML/vtkMRMLLayerDMSelectionObserver.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   
   // LayerDM includes
   #include "vtkSlicerLayerDMModuleMRMLExport.h"
   
   // VTK includes
   #include <vtkObject.h>
   #include <vtkSmartPointer.h>
   #include <vtkWeakPointer.h>
   
   class vtkMRMLInteractionNode;
   class vtkMRMLNode;
   class vtkMRMLScene;
   class vtkMRMLSelectionNode;
   class vtkMRMLLayerDMObjectEventObserver;
   class vtkMRMLApplicationLogic;
   
   class VTK_SLICER_LAYERDM_MODULE_MRML_EXPORT vtkMRMLLayerDMSelectionObserver : public vtkObject
   {
   public:
     static vtkMRMLLayerDMSelectionObserver* New();
     vtkTypeMacro(vtkMRMLLayerDMSelectionObserver, vtkObject);
   
     void SetScene(vtkMRMLScene* scene);
     void UpdateNodesFromScene(vtkMRMLScene* scene);
   
     void UpdateNodesFromApplicationLogic(vtkMRMLApplicationLogic* logic);
   
     bool SetInteractionNode(vtkMRMLInteractionNode* interactionNode);
     vtkMRMLInteractionNode* GetInteractionNode() const;
   
     bool SetSelectionNode(vtkMRMLSelectionNode* selectionNode);
     vtkMRMLSelectionNode* GetSelectionNode() const;
   
     bool IsPlacing(vtkMRMLNode* node) const;
   
     bool IsPlacing() const;
   
     void StartPlace(vtkMRMLNode* node, bool isPersistent);
   
     void StopPlace() const;
   
     std::string GetActivePlaceNodeID() const;
     void SetInteractionMode(int interactionMode) const;
     int GetCurrentInteractionMode() const;
   
     bool GetPlaceModePersistence() const;
   
   protected:
     vtkMRMLLayerDMSelectionObserver();
     ~vtkMRMLLayerDMSelectionObserver() override;
     vtkMRMLLayerDMSelectionObserver(const vtkMRMLLayerDMSelectionObserver&) = delete;
     void operator=(const vtkMRMLLayerDMSelectionObserver&) = delete;
   
   private:
     vtkSmartPointer<vtkMRMLLayerDMObjectEventObserver> m_obs;
     vtkWeakPointer<vtkMRMLScene> m_scene;
     vtkWeakPointer<vtkMRMLInteractionNode> m_interactionNode;
     vtkWeakPointer<vtkMRMLSelectionNode> m_selectionNode;
   };