include/vrvOsgQt/DtSceneGraphTreeLogic.h

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/******************************************************************************
** Copyright (c) 2011 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/

#pragma once

#include <vrvOsgQt/vrvOsgQt.h>
#include <vrvOsgQt/DtSceneGraphTreeWidgetInterface.h>
#include <vrvCore/DtSubjectObserver.h>
#include <osg/NodeCallback>

namespace osg
{
   class Node;
   class Drawable;
}

class QTreeWidgetItem;
class QIcon;

namespace makVrv
{

   class DtDe;
   
   class DT_DLL_VRVOSGQT DtSceneGraphTreeLogic
   {

   public:
      static DtSceneGraphTreeLogic* create(DtDe& de, DtSceneGraphTreeWidgetInterface* iface);

      virtual ~DtSceneGraphTreeLogic();

      virtual void clearAndTraverse();

      virtual bool iterateNode(QTreeWidgetItem* pParent, const osg::Node* pNode, bool bDrawIcon = true);

   protected:

      DtSceneGraphTreeLogic(DtDe& de, DtSceneGraphTreeWidgetInterface* iface);

   private:

      DtSceneGraphTreeLogic();
      QIcon getNodeIcon(const osg::Node* pNode);
      QIcon getDrawableIcon(const osg::Drawable* drawable);

   protected:

      DtDe& myDe;
      DtSceneGraphTreeWidgetInterface* myWidgetInterface;

   };

}