DtOsgWindowTriangleGroupInstance.h

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/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>
#include <vrvOsg/DtOsgWindowTriangleGroup.h>
#include <vrvOsg/DtOsgWindowPolygonInstance.h>

#include <vrvUtil/DtVirtualBaseClass.h>

#include <osg/Vec2>
#include <osg/Matrix>

namespace makVrv
{
   class DtDe;
   class DtFilledPolygon;

   class DT_DLL_VRVOSG DtOsgWindowTriangleGroupInstance : public DtOsgWindowPolygonInstance
   {
   public:
      DtOsgWindowTriangleGroupInstance( DtDe& de );

      virtual ~DtOsgWindowTriangleGroupInstance();

      struct Triangle
      {
         unsigned int stipplePattern;
         VertexList vertices;
      };

      virtual void setTriangleCount( unsigned int count );

      virtual void addTriangle( unsigned int stipplePattern,
         float xVertex0, float yVertex0, float xVertex1, float yVertex1,
         float xVertex2, float yVertex2 );

      virtual void updateTriangle( unsigned int index, unsigned int stipplePattern,
         float xVertex0, float yVertex0, float xVertex1, float yVertex1,
         float xVertex2, float yVertex2 );

      virtual void setVisible( bool isVisible );

      virtual void setChannelOverlay( std::string displayName,
         std::string windowName, std::string channelName );
   protected:
      virtual void updateGeometry();

      virtual void deleteAllTriangles();

      virtual DtFilledPolygon* createTriangle();

   protected:

      struct TriangleStruct
      {
         Triangle TriangleInfo;
         DtFilledPolygon* trianglePolygon;
      };
      std::vector< TriangleStruct > myTriangles;

      unsigned int myTriangleCount;
   };

   class DT_DLL_VRVOSG DtOsgWindowTriangleGroupInstanceCreator : public DtVirtualBaseClass
   {
   public:
      DtOsgWindowTriangleGroupInstanceCreator( DtDe& de );

      virtual ~DtOsgWindowTriangleGroupInstanceCreator();

      static DtOsgWindowTriangleGroupInstanceCreator& instance( DtDe& de );

      static void registerInstance( DtDe& de, DtOsgWindowTriangleGroupInstanceCreator* instance );

      virtual DtOsgWindowTriangleGroupInstance* create();

   protected:
      DtDe& myDe;
   };
}