#ifndef __creaImageIOTreeView_h_INCLUDED__
#define __creaImageIOTreeView_h_INCLUDED__

#include <creaImageIOTreeHandler.h>
#include <creaImageIOSystem.h>
#include <vtkImageData.h>

namespace creaImageIO
{
  /**
   * \ingroup View
   */
	
  //=====================================================================
  
  //=====================================================================
  /// Abstract class that handles the view of a Tree through its TreeHandler
  class TreeView
    {
    public:
      /// Ctor
      TreeView(TreeHandler*);
      /// Virtual destructor
      virtual ~TreeView();

      
      /// Updates the view of a level given the selected items of upper level
      virtual void UpdateLevel( int ) 
      { GimmickError("INTERNAL ERROR : TreeView::UpdateLevel not overloaded");}

	  ///Removes selected nodes on given level
	  virtual void RemoveSelected( int )
	  { GimmickError("INTERNAL ERROR : TreeView::RemoveSelected not overloaded");}

	  ///Validates the selected images
      virtual void ValidateSelectedImages()
	  { GimmickError("INTERNAL ERROR : TreeView::ValidateSelected not overloaded");}
	  ///Returns the selected data as vtkImageData
	  vtkImageData* GetSelectedImage(int dim)
	  { GimmickError("INTERNAL ERROR : TreeView::GetSelectedImage not overloaded");}
    ///Returns the selected data as a vector of vtkImageData (4D)
	  virtual void GetSelectedImages(std::vector<vtkImageData*>& s, int dim)
	  { GimmickError("INTERNAL ERROR : TreeView::GetSelectedImages not overloaded");}

	  ///Sets the maximum dimension allowed for selections
	  void SetMaxDimension(int maxdim){ mSelectionMaxDimension=maxdim; }
	  ///Sets the minimum dimension allowed for selections
	  void SetMinDimension(int mindim){ mSelectionMinDimension=mindim; }
	  ///Sets the output dimension desired for selections
	  void SetOutputDimension(int outdim){ mOutputDimension=outdim; }
    
    protected:
      TreeHandler* GetTreeHandler() { return mTreeHandler; }
	  ///Gets the maximum dimension allowed for selections
	  int GetMaxDimension(){ return mSelectionMaxDimension; }
	  ///Gets the minimum dimension allowed for selections
	  int GetMinDimension(){ return mSelectionMinDimension; }
	  ///Gets the output dimension desired for selections
	  int GetOutputDimension(){ return mOutputDimension; }

    private:
      /// The TreeHandler with which it corresponds
      TreeHandler* mTreeHandler;
	  //The selection's maximum dimension
	  int mSelectionMaxDimension;
	  //The selection's minimum dimension
	  int mSelectionMinDimension;
	  //The user desired output dimension
	  int mOutputDimension;
    };
    // EO class TreeView
    //=====================================================================
  
  
} // EO namespace creaImageIO

// EOF
#endif