DtOsgWindowEllipseGroupInstance.h

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


#pragma once

#include <vrvOsg/vrvOsg.h>
#include <vrvOsg/DtOsgWindowEllipseGroup.h>
#include <vrvOsg/DtOsgWindowEllipseInstance.h>

#include <vrvUtil/DtVirtualBaseClass.h>

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

namespace makVrv
{
   class DtDe;
   class DtFilledPolygon;
   class DtSegmentedLine;

   class DT_DLL_VRVOSG DtOsgWindowEllipseGroupInstance : public DtOsgWindowEllipseInstance
   {
   public:
      DtOsgWindowEllipseGroupInstance( DtDe& de );

      virtual ~DtOsgWindowEllipseGroupInstance();

      struct Ellipse
      {
         unsigned int stipplePattern;
         bool fill;
         float lineWidth;
         float centerX;
         float centerY;
         float radius;
         float innerRadius;
         float startAngle; // rads
         float endAngle; // rads
      };

      virtual void setEllipseCount( unsigned int count );

      virtual void addEllipse( unsigned int stipplePattern,
         bool fill, float lineWidth, float centerX, float centerY, float radius,
         float innerRadius, float startAngle, float endAngle );

      virtual void updateEllipse( unsigned int index, unsigned int stipplePattern,
         bool fill, float lineWidth, float centerX, float centerY, float radius,
         float innerRadius, float startAngle, float endAngle );

      virtual void setVisible( bool isVisible );

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

      virtual void updateFilledPolygon( DtFilledPolygon* poly, Ellipse ellipseInfo );

      virtual void updateLineSegments( std::vector<DtSegmentedLine*>& vec, Ellipse ellipseInfo );

      virtual void deleteAllEllipses();

      DtFilledPolygon* createFilledPolygon();

      virtual void createLinesVector( unsigned int lineCount, std::vector<DtSegmentedLine*>& vec );

      virtual void createEllipseStruct( Ellipse ellipse );

   protected:

      struct EllipseStruct
      {
         Ellipse ellipseInfo;
         DtFilledPolygon* filledEllipse;
         std::vector<DtSegmentedLine*> clippedOutlineEllipse;
      };
      std::vector< EllipseStruct > myEllipses;

      unsigned int myEllipseCount;
   };

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

      virtual ~DtOsgWindowEllipseGroupInstanceCreator();

      static DtOsgWindowEllipseGroupInstanceCreator& instance( DtDe& de );

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

      virtual DtOsgWindowEllipseGroupInstance* create();

   protected:
      DtDe& myDe;
   };
}