DtOsgOverlayPolygonModelInstance.h

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/******************************************************************************
** Copyright (c) 2014 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>
#include <vrvCore/DtModelInstance.h>
#include <osg/Vec4>
#include <osg/Vec3>
#include <osg/Quat>
#include <vector>
#include <vrvOsg/DtTacticalGraphicModelUpdaterManager.h>

#include <osg/Texture>

namespace makVrv
{
   class DtPolygon;
   class DtChannelManager;
   class DtChannel;

   class DT_DLL_VRVOSG DtOsgOverlayPolygonModelInstance : public DtModelInstance
   {
   public:
      struct VertexData
      {
         VertexData()
         : my3DPos()
         {
            my2DOffset[0] = 0.0f;
            my2DOffset[1] = 0.0f;
         }

         osg::Vec3d my3DPos;
         osg::Vec3d my3DOffset;
         float my2DLength;
         float my2DOffset[2];        
      };
      typedef std::vector<VertexData> VertexList;

   public:
      DtOsgOverlayPolygonModelInstance(DtDe& de);

      virtual ~DtOsgOverlayPolygonModelInstance();

      virtual void setModelSet(int);

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

      virtual void setRotation(const osg::Quat& quat);

      virtual void setOrigin(const DtVector&);

      virtual void setGroup( int );

      virtual DtVector origin() const;

      virtual void addPoint(const DtVector& point,int index);

      virtual void removePoint(int index);

      virtual void set2dOffset(int index, float x, float y);

      virtual void set3dDirection2dLength( int index, float x, float y, float z,
         float len );

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

      virtual void setTexturePath(const std::string& texturePath);

      virtual void setOutlineTexture(const std::string& texturePath);

      virtual void setOutlineTexture(osg::Texture* texture);

      virtual void setSolidFillCenter(bool);

      virtual void setNumTextureTiles(double numTiles);

      virtual void setStipplePattern(unsigned int stipplePattern);

      virtual void setWidth(float width);

      virtual void setEventWidth(float width);

      virtual void setVisible(bool isVisible);

      virtual void setLockUpdates(bool lock);

      bool updatesLocked() const;

      virtual void setPickable(bool enabled);

      virtual void setEventsEnabled(bool, unsigned long long userData);

      bool eventsEnabled() const;

      virtual void setFill(bool);

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

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

      virtual int pointCount() const;

      virtual DtVector point(int) const;

      virtual void setFillPattern(const std::vector<unsigned int> pattern);

      virtual void setOutline(bool);

      virtual void setChannelInstance(DtChannel*, int modelSet);

      virtual const VertexList& vertexList() const;

      virtual void setVertexList(const VertexList&);

      virtual const std::vector<DtVector>& points() const;

   protected:
      virtual void createPolygonIfNecessary();

      virtual void updateGeometry();

      virtual void updateColors();

      virtual void translateAndUpdateVertex( unsigned int index, const VertexData& vert, DtPolygon* polygon);

      virtual void channelUpdated(DtTacticalGraphicModelUpdaterManager::ChannelUpdateData);

      virtual std::vector<DtVector> topographicVertices() const;

      // @{
      virtual bool triangulate(const std::vector<DtVector>& input, std::vector<int>& output) const;
      virtual bool snipTriangle(const std::vector<DtVector> &contour,int u,int v,int w,int n,int *V) const;
      virtual bool insideTriangle(float Ax, float Ay,
                         float Bx, float By, float Cx, float Cy, float Px, float Py) const;
      virtual float triangulateAreaSize(const std::vector<DtVector> &contour) const;
      // @}

   protected:

      VertexList myVertices;

      // Flat list of points.  Valid after call to updateGeometry
      std::vector<DtVector> myPoints;

      DtPolygon* myPolygon;
      DtPolygon* myOutlinePolygon;

      bool myIsLocked;
      bool myGeometryIsDirty;
      bool myFilled;

      float myWidth;
      osg::Vec4 myInnerColor;
      osg::Vec4 myOuterColor;
      unsigned int myStipplePattern;
      int myModelSet;
      unsigned long long myUserData;

      bool myEventsEnabled;
      bool myGeometryDirty;
      bool myLockUpdates;
      bool myVisibleFlag;
      bool myOutline;
      bool mySolidFillCenter;

      osg::Vec3d myOrigin;
      osg::Quat myRotation;

      osg::ref_ptr<osg::Texture> myOutlineTexture;

      DtChannel* myChannelInstance;
      int myGroup;
   };
}