DtSceneGraph.h

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/****************************************************************************** 
** Copyright (c) 2023 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 


#pragma once

#include <vrvOsg/DtOsgRenderer.h>
#include <cstdio>
namespace makVrv
{
   class DtDe;

   class DtSceneGraph
   {
   public:
      DtSceneGraph(DtDe& de, DtOsgRenderer* renderer);

      virtual ~DtSceneGraph();

      virtual bool isSceneRootEmpty(const DtSceneRoot& sr);

      virtual void addNodeToRoot(osg::Node* node, const DtSceneRoot& sr, bool createOnAccess);

      virtual void addSceneRootToRoot(const DtSceneRoot& childRoot, const DtSceneRoot& parentRoot, bool createOnAccess);

      virtual void addRootToNode(osg::Group* node, const DtSceneRoot& sr, bool createOnAccess);

      virtual void addActiveRootToNode(osg::Group* node, const DtSceneRoot& sr, bool createOnAccess);
      
      virtual bool removeNodeFromRoot(osg::Node* node, const DtSceneRoot& sr);

      virtual void removeSceneRootFromRoot(const DtSceneRoot& childRoot, const DtSceneRoot& parentRoot);

      virtual void removeRootFromNode(osg::Group* node, const DtSceneRoot& sr);

      virtual void removeActiveRootFromNode(osg::Group* node, const DtSceneRoot& sr);

      virtual void traverseRoot(osg::NodeVisitor& nv, const DtSceneRoot& sr);

      virtual void setSceneRootNodeMask(const DtSceneRoot& sr, osg::Node::NodeMask nodeMask);

      virtual osg::Node::NodeMask sceneRootNodeMask(const DtSceneRoot& sr);

      virtual osg::BoundingSphere sceneRootBound(const DtSceneRoot& sr);

      virtual osg::BoundingSphere sceneRootListBound( const DtSceneRootList& srList );

      virtual osg::Group* findSceneRootChildByName(
         const DtSceneRoot& parent, const std::string& rootName, bool subString = false );

      virtual void setRenderRootAsSceneData( osgViewer::View& view );

      virtual osg::Group* createModelSetRoot( DtModelSetId modelSet );

      virtual bool matchesSceneRoot(const DtSceneRoot& sr, osg::Group* group );

   protected:
      // Used internally by the other scene root using functions to find the
      // correct root for adding/removing children, Getting child counts, etc.
      virtual osg::Group* getContainerRoot(const DtSceneRoot& root, bool createOnAccess);

      // Container roots may have other roots over them for doing transforms, etc.
      // This gets the topmost root associated with that scene root, useful for
      // traversal, nodeMask setting/getting, etc.
      virtual osg::Group* getActiveRoot(const DtSceneRoot& root);

   private:
      DtOsgRenderer* myRenderer;
      DtDe& myDe;
   };
}