DtOverlayManager.h

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/****************************************************************************** 
** Copyright (c) 2009 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 
/****************************************************************************** 
** $RCSfile: DtRenderer.h,v $ $Revision: 1.31 $ $State: Exp $ 
******************************************************************************/ 
 
 
#pragma once
#include <vrvCore/vrvCore.h>
#include <vrvUtil/DtVirtualBaseClass.h>

#include <vrvUtil/signalslib.h>

namespace makVrv 
{ 
   class DtChannel;
   class DtDe;
   class DtMouseEvent;
   class DtRenderer;

   class DT_DLL_VRVCORE DtOverlayManager 
   {
   public:

      DtOverlayManager();
      virtual ~DtOverlayManager();

      enum DefaultOverlays
      {
         InvalidOverlay = 0,
         ModelSet_3D_Overlay,
         ModelSet_3D_XR_Overlay,
         ModelSet_3D_Sensor_Overlay,
         ModelSet_3D_Icons_Overlay,
         ModelSet_3D_Images_Overlay,
         ModelSet_2D_Icons_Overlay,
         ModelSet_2D_Images_Overlay,
         ModelSet_UserStart,
         //Allow 16 user set model sets.
         ModelSet_UserEnd = ModelSet_UserStart + 16,          
         Channel_SpecificStart,
         //Allow for 128 channel specific overlays
         Channel_SpecificEnd = Channel_SpecificStart + 128,        
         RemoteDisplayOverlay,
         RemoteDisplayWorldOverlay,
         SensorViewOverlay,
         UserStart
      };

      virtual void render(DtChannel* channel, bool projectedGeocentricEffect, 
         float geocentricAlpha,
         double* position, double* matrix, double* projectionMatrix, 
         double viewportSize[2]) = 0;

      virtual void releaseResources() = 0;

      static DefaultOverlays modelSetToOverlay(unsigned int modelSet);

      virtual void enableOverlayOnChannel(unsigned int layerId, bool enabled, 
         DtChannel& channel) = 0;

      virtual bool handleMouseEvent(const DtMouseEvent& ev, 
         DtChannel& channel) = 0;

      virtual void destroyOverlayLayer(unsigned int layerId) = 0;

      virtual bool overlayLayerIsVisible(unsigned int layerId) const = 0;

      virtual void setOverlayLayerVisibility(unsigned int layerId, 
         bool visible) = 0;

      boost::signal<void (DtChannel* channel, DefaultOverlays overlay)> signal_overlayAboutToBeRendered;

   };

   class DT_DLL_VRVCORE DtOverlayManagerCreator : public DtVirtualBaseClass
   {
   public:

      static DtOverlayManagerCreator& instance(DtDe&);

      static void registerInstance(DtDe& de,DtOverlayManagerCreator*);

      virtual DtOverlayManager* create(DtDe& de) = 0;
   };
}