view.h

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//--------------------------------------------------
//---------------------------------------------------

#ifndef IMEDGINE_VIEW_H
#define IMEDGINE_VIEW_H

//Internal includes
#include "../global/global_definitions.h"
#include "../exceptions/null_pointer_exception.h"
#include "../exceptions/invalid_cast_exception.h"

//Coin includes
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoOrthographicCamera.h>

class QWidget;

namespace imedgine 
{ 
  class DataViewMediator; 

  //--------------------------------------------------

  //--------------------------------------------------
  //--------------------------------------------------

  class View
  {
  public:
    
    //--------------------------------------------------
       
    View(view_type type);
    
    //--------------------------------------------------
       
    virtual ~View();
    
    //--------------------------------------------------
     
    virtual view_pointer_type clone() const = 0;
    
    //--------------------------------------------------
              
    unsigned int getViewID() const;   
    
    //--------------------------------------------------
          
    view_type getType() const;
    
    //--------------------------------------------------
    
    virtual void setParent(QWidget* view_parent);
            
    //--------------------------------------------------
    
    virtual void setDataset(dataset_pointer_type dataset)
        throw(NullPointerException, InvalidCastException); 

    //--------------------------------------------------
    
    virtual void onDataChangedEvent(dataset_attribute_type changed_attribute);
    
    //--------------------------------------------------
    
    virtual void onDatasetDeletion(dataset_key_type) {}
    
    //--------------------------------------------------
    
    virtual void updateView()
        throw(NullPointerException) = 0; 
    
    //--------------------------------------------------
    
    void registerDataViewMediator(DataViewMediator* data_view_mediator);
              
    //--------------------------------------------------
    
    void deregisterDataViewMediator();   
  
    SoSeparator* getSceneGraph() const { return root_; }    
    
    SoSeparator* getStaticSceneSeparator() const { return static_sep_; } 
    
    SoCamera* getStaticCamera() const { return static_camera_; }
    
  protected:
      
    //--------------------------------------------------
    
    View(View const& src);
    
    //--------------------------------------------------

    virtual void createSceneGraph();    
    
    //--------------------------------------------------
    
    virtual void notifyDataChangedEvent(dataset_attribute_type changed_attribute);
       
    //--------------------------------------------------
    
    QWidget* view_parent_;
    
    //--------------------------------------------------
    
    DataViewMediator* data_view_mediator_;
    
    //--------------------------------------------------
    
    SoSeparator* root_;  
  
    //---------------------------------------------------
    
    SoSeparator* dynamic_sep_;      
    
    //---------------------------------------------------
    
    SoSeparator* static_sep_;  
    
    //---------------------------------------------------
    
    SoOrthographicCamera* static_camera_;    
    
    //--------------------------------------------------
     
    dataset_key_type dataset_key_;
     
  private:
    
    //--------------------------------------------------
    
    View& operator = (View const&)
    {
      return(*this);
    }
    
    //---------------------------------------------------
    
    view_type type_;
    
    //---------------------------------------------------
    
    unsigned int view_id_;
    
    //---------------------------------------------------
    
    static unsigned int num_constructed_views_;
  };

}

#endif // IMEDGINEVIEW_H

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