//----------------------------------------------------------------------------
//  EgalTech 2015-2023
//----------------------------------------------------------------------------
// File : EGkVoronoi.h         Data : 23.11.23          Versione : 2.5k5
// Contenuto : Dichiarazione della classe Voronoi con libreria VRONI
//
//
//
// Modifiche : 23.11.23 SP Creazione modulo.

//
//----------------------------------------------------------------------------

#pragma once

#include "/EgtDev/Include/EGkFrame3d.h"
#include "/EgtDev/Include/EGkCurve.h"
#include "/EgtDev/Include/EGkCurveArc.h"
#include "/EgtDev/Include/EGkCurveBezier.h"
#include "/EgtDev/Include/EGkCurveComposite.h"
#include "/EgtDev/Include/EGkCurveLine.h"
#include "/EgtDev/Extern/vroni/Include/vroni_object.h"


//----------------------- Macro per import/export ----------------------------
#undef EGK_EXPORT
#if defined( I_AM_EGK)            // da definirsi solo nella DLL
#define EGK_EXPORT __declspec( dllexport)
#else
#define EGK_EXPORT __declspec( dllimport)
#endif

static const int VORONOI_STD_BOUND = 3 ;
static const double VRONI_OFFS_TOL = 1e-14 ;

//-------------------------- Forward Definitions -------------------------------
class ISurfFlatRegion ;

//----------------------------------------------------------------------------
class Voronoi
{
   public :
     // costanti per il lato del medial axis
      enum WMATSide { WMAT_LEFT = 0,
                      WMAT_RIGHT = 1,
                      WMAT_BOTHSIDES = 2} ;
   public :
      EGK_EXPORT Voronoi( void)
                    : m_vroni( nullptr), m_nBound( VORONOI_STD_BOUND), m_bVDComputed( false), m_bAllowAdd( true) {} ;
      EGK_EXPORT Voronoi( const ICurve* pCrv, bool bAllowAdd) ;
      EGK_EXPORT Voronoi( const ISurfFlatRegion* pSfr, bool bAllowAdd) ;
      EGK_EXPORT ~Voronoi( void) ;

   public :
      EGK_EXPORT bool AddCurve( const ICurve* pCrv) ;
      EGK_EXPORT bool AddSurfFlatRegion( const ISurfFlatRegion* pSfr) ;
      EGK_EXPORT ICurve* GetCurve( int nId) const ;
      EGK_EXPORT int GetCurveCount( void) const
                        { return m_vpCrvs.size() ; } ;

      EGK_EXPORT bool CalcVoronoiDiagram( ICURVEPOVECTOR& vCrvs, int nBound = VORONOI_STD_BOUND) ;
      EGK_EXPORT bool CalcOffset( ICURVEPOVECTOR& vOffs, double dOffs, int nType) ;
      EGK_EXPORT bool CalcFatCurve( ICURVEPOVECTOR& vOffs, double dOffs, bool bSquareEnds, bool bSquareMids) ;
      EGK_EXPORT bool CalcMedialAxis( ICURVEPOVECTOR& vCrvs, int nSide) ;

   private :
      bool Clear( void) ;
      bool IsValid( void) const
              { return m_vroni != nullptr ; } ;
      bool AddCurveToVroni( const ICurve * pCrv) ;
      bool AddLineToVroni( const ICurveLine* pLine, int& nVroniCrv, int nLoopId, int nCrvId = 0, Point3d ptForcedEnd = P_INVALID) ;
      bool AddArcToVroni( const ICurveArc* pArc, int& nVroniCrv, int nLoopId, int nCrvId = 0, Point3d ptForcedEnd = P_INVALID) ;
      bool AddCompoToVroni( const ICurveComposite* pCompo, int& nCrv, int nLoopId) ;
      bool AddBezierToVroni( const ICurveBezier* pBezier, int& nVroniCrv, int nLoopId) ;

      bool CalcVoronoi( int nBound = VORONOI_STD_BOUND) ;
      bool CalcVroniOffset( ICRVCOMPOPLIST& vOffs, double dOffs, bool bRightOffs, bool bLeftOffs) ;
      bool UpdateVoronoi( double dOffs) ;
      bool VerifyCurvesValidityForOffset( void) ;
      bool AdjustOpenOffsetCurve( ICurveComposite& pCompo, double dOffs) ;
      bool AdjustOffsetStart( ICurveComposite& pCompo) ;
      int GetOffsetCurveSide( const ICurveComposite& pOffs, int nCrv) ;
      ICurve* GetBisectorCurve( int i) ;

   private :
      vroniObject*   m_vroni ;        // oggetto base della libreria vroni
      Frame3d        m_Frame ;        // frame in cui è espresso l'oggetto vroni
      int            m_nBound ;       // bound associato al diagramma di Voronoi corrente
      CICURVEPVECTOR m_vpCrvs ;       // curve associate al Voronoi ( espresse rispetto a m_Frame)
      BBox3d         m_bBox ;         // box degli oggetti associati al Voronoi
      bool           m_bVDComputed ;  // indica se il diagramma di Voronoi è stato calcolato
      bool           m_bAllowAdd ;    // indica se possibile aggiungere altre curve/superifici dopo aver creato l'oggetto Voronoi
} ;