include/vrvOsg/DtProjectedTextModelInstance.h

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/******************************************************************************
** Copyright (c) 2008 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
/******************************************************************************
** $RCSfile: DtProjectedTextModelInstance.h,v $ $Revision: 1.10 $ $State: Exp $
******************************************************************************/


#ifndef DtAttachableProjectedTextModelInstance_H_
#define DtAttachableProjectedTextModelInstance_H_

#include <vrvOsg/vrvOsg.h>
#include <vrvOsg/DtOsgModelInstance.h>

#include <osg/Group>
#include <osg/Geode>
#include <osg/Geometry>
#include <osg/Switch>
#include <osgText/Text>

namespace makVrv
{
   class DtDe;
   class DtChannel;

   class DT_DLL_VRVOSG DtProjectedTextModelInstance
      : public DtOsgModelInstance
   {
   public:
      DtProjectedTextModelInstance(DtDe& de, const std::string& uniqueName);

      ~DtProjectedTextModelInstance();

      virtual void  addToConnector( DtOsgSceneConnector* connector );
      
      virtual bool removeFromConnector( DtOsgSceneConnector* connector );

      virtual void setColor( const osg::Vec4& color );
      virtual void setFontName( const std::string& fontName );
      virtual void setFontSize( double size );
      virtual void setText( const std::string& text );

      virtual void setPosition( int vtx, const DtVector& position );

      virtual void setVisible(bool visible) {}

   protected:
   
      DtChannel* findChannelWithLocation( const osg::Vec3d& location ) const;
      bool locationInChannel( DtChannel* channel, const osg::Vec3d& location ) const;
      void getChannelDimensions( DtChannel* channel, double& startX, double& startY,
         double& endX, double& endY ) const;
         
   protected:
      
      osg::ref_ptr<osgText::Text> myTextDrawable;
      osg::ref_ptr<osg::Geode> myTextGeode;
      
      std::string myFontName;
      osg::Vec4 myColor;
      double mySize;        
      
      std::string myUniqueName;
   };
}

#endif