DtOsgWindowTriangleFanInstance.h

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/******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvCore/DtWindowTriangleFanInstance.h>
#include <vrvUtil/DtSignalConnectionManager.h>

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


namespace makVrv
{
   class DtDe;
   class DtFilledPolygon;
   class DtChannelManager;
   class DtChannel;

   class DT_DLL_VRVOSG DtOsgWindowTriangleFanInstance : public DtWindowTriangleFanInstance
   {
   public:
      DtOsgWindowTriangleFanInstance( DtDe& de );

      virtual ~DtOsgWindowTriangleFanInstance();

      virtual void setVisible( bool isVisible );

      virtual void setFillPattern( unsigned int fillPattern );

      virtual void setNumVertices( unsigned int numVertices );

      virtual void setVertex( int i, double x, double y );

      virtual void setColor( float r, float g, float b, float a );

      virtual bool visible() const;

      virtual void setTransform( DtMatrix3<double> transform );

      virtual void update();

      virtual void setGroup( int groupId );

      virtual void setChannelOverlay( const std::string& displayName,
         const std::string& windowName, const std::string& channelName ) override;

      void createTriangleFan();
   protected:
      typedef std::vector<osg::Vec2> VertexList;

      virtual void updateGeometry();

      virtual void setClipBox( DtVector2<double> bottomLeftLocation, DtVector2<double> topRightLocation );

      virtual void slot_channelToBeDestroyed(DtChannelManager*, DtChannel*);

   protected:
      DtDe& myDe;
      DtFilledPolygon* myTriangleFan;
      VertexList myVertices;
      osg::Matrix myTransform;
      unsigned int myFillPattern;
      unsigned int myGroup;
      float myColorR, myColorG, myColorB, myColorA;
      bool myGeometryDirty;
      bool myUseChannelOverlay;
      bool myVisible;
      osg::Vec2 myClipBoxBottomLeft;
      osg::Vec2 myClipBoxTopRight;
      std::string myDisplayName;
      std::string myWindowName;
      std::string myChannelName;

      DtSignalConnectionManager myConnections;
   };

   class DT_DLL_VRVOSG DtOsgWindowTriangleFanInstanceCreator : public DtWindowTriangleFanInstanceCreator
   {
   public:
      DtOsgWindowTriangleFanInstanceCreator( DtDe& de );

      virtual DtWindowTriangleFanInstance* create();
   };
}