// Created on: 1996-12-18
// Created by: Robert COUBLANC
// Copyright (c) 1996-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

// Modified :   22/03/04 ; SAN : OCC4895 High-level interface for controlling polygon offsets 

#define BUC60577        //GG_101099     Enable to compute correctly
//                      transparency with more than one object in the view.

#define GER61351	//GG_171199     Enable to set an object RGB color
//			instead a restricted object NameOfColor. 
//			Add SetCurrentFacingModel() method

#define BUC60632	//GG 15/03/00 Add protection on SetDisplayMode()
//			method, compute only authorized presentation.

#define OCC708          //SAV unsetting transformation correctly

#include <AIS_InteractiveObject.ixx>

#include <Aspect_PolygonOffsetMode.hxx>
#include <Prs3d_ShadingAspect.hxx>
#include <Prs3d_LineAspect.hxx>
#include <Prs3d_PointAspect.hxx>
#include <Prs3d_TextAspect.hxx>
#include <Prs3d_Presentation.hxx>
#include <Prs3d_Root.hxx>
#include <PrsMgr_ModedPresentation.hxx>
#include <PrsMgr_PresentationManager3d.hxx>
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <AIS_GraphicTool.hxx>
#include <Graphic3d_AspectFillArea3d.hxx>
#include <Graphic3d_AspectLine3d.hxx>
#include <Graphic3d_AspectMarker3d.hxx>
#include <Graphic3d_AspectText3d.hxx>
#include <Graphic3d_Group.hxx>
#include <Graphic3d_Structure.hxx>


//=======================================================================
//function : AIS_InteractiveObject
//purpose  : 
//=======================================================================

AIS_InteractiveObject::
AIS_InteractiveObject(const PrsMgr_TypeOfPresentation3d aTypeOfPresentation3d):
SelectMgr_SelectableObject(aTypeOfPresentation3d),
myDrawer(new AIS_Drawer()),
myTransparency(0.),
myOwnColor(Quantity_NOC_WHITE),
myOwnMaterial(Graphic3d_NOM_DEFAULT),
myHilightMode(-1),
myOwnWidth(0.0),
myInfiniteState(Standard_False),
hasOwnColor(Standard_False),
hasOwnMaterial(Standard_False),
myCurrentFacingModel(Aspect_TOFM_BOTH_SIDE),
myRecomputeEveryPrs(Standard_True),
myCTXPtr(NULL),
mySelPriority(-1),
myDisplayMode (-1),
mySelectionMode(0),
mystate(0)
{
  Handle (AIS_InteractiveContext) Bid;
  myCTXPtr = Bid.operator->();
#ifdef GER61351
  SetCurrentFacingModel();
#endif
}

//=======================================================================
//function : Redisplay
//purpose  : 
//=======================================================================

void AIS_InteractiveObject::Redisplay(const Standard_Boolean AllModes)
{
  Update(AllModes);
  UpdateSelection();
}

//=======================================================================
//function : Type
//purpose  : 
//=======================================================================

AIS_KindOfInteractive AIS_InteractiveObject::Type() const 
{return AIS_KOI_None;}

//=======================================================================
//function : Signature
//purpose  : 
//=======================================================================

Standard_Integer AIS_InteractiveObject::Signature() const 
{return -1;}

//=======================================================================
//function : RecomputeEveryPrs
//purpose  : 
//=======================================================================

Standard_Boolean  AIS_InteractiveObject::RecomputeEveryPrs() const 
{return myRecomputeEveryPrs;}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
Standard_Boolean AIS_InteractiveObject::HasInteractiveContext() const 
{
  Handle (AIS_InteractiveContext) aNull;
  return  (myCTXPtr != aNull.operator->());
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
Handle(AIS_InteractiveContext) AIS_InteractiveObject::GetContext() const 
{
  return myCTXPtr;
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetContext(const Handle(AIS_InteractiveContext)& aCtx)
{
  myCTXPtr = aCtx.operator->();
  if( aCtx.IsNull())
    return;
  if (myDrawer.IsNull()) {
    myDrawer = new AIS_Drawer;
#ifdef DEB
    cout << "AIS_InteractiveObject::SetContext DRAWER NUL!" << endl;
#endif
  }
  myDrawer->Link(aCtx->DefaultDrawer());
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
Standard_Boolean AIS_InteractiveObject::HasOwner() const 
{
  return (!myOwner.IsNull());
}



//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::ClearOwner()
{
  myOwner.Nullify();
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
Standard_Boolean AIS_InteractiveObject::HasUsers() const 
{
  return (!myUsers.IsEmpty());
}


//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::AddUser(const Handle(Standard_Transient)& aUser)
{
  myUsers.Append(aUser);
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::ClearUsers()
{
  myUsers.Clear();
}


//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetDisplayMode(const Standard_Integer aMode)
{
#ifdef BUC60632
  if( AcceptDisplayMode(aMode) )
#endif
    myDisplayMode = aMode;
}
  

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetSelectionMode(const Standard_Integer aMode)
{
  mySelectionMode = aMode;
}



//=======================================================================
//function : 
//purpose  : 
//=======================================================================
#ifdef GER61351
void AIS_InteractiveObject::SetCurrentFacingModel(const Aspect_TypeOfFacingModel aModel) {
  myCurrentFacingModel = aModel;
}

//=======================================================================
//function : CurrentFacingModel
//purpose  : 
//=======================================================================

Aspect_TypeOfFacingModel AIS_InteractiveObject::CurrentFacingModel() const {
  return myCurrentFacingModel;
}
#endif

//=======================================================================
//function : SetColor
//purpose  : 
//=======================================================================

void AIS_InteractiveObject::SetColor(const Quantity_NameOfColor aColor)
#ifdef GER61351
{
  SetColor(Quantity_Color(aColor));
}

//=======================================================================
//function : SetColor
//purpose  : 
//=======================================================================

void AIS_InteractiveObject::SetColor(const Quantity_Color &aColor)
#endif
{
  myOwnColor = aColor;
  hasOwnColor = Standard_True;
}

//=======================================================================
//function : UnsetColor
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::UnsetColor()
{
  hasOwnColor = Standard_False;
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetWidth(const Standard_Real aValue)
{
  myOwnWidth = aValue;
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::UnsetWidth()
{
  myOwnWidth = 0.;
}


//=======================================================================
//function : 
//purpose  : 
//=======================================================================
//POP pour K4L
void AIS_InteractiveObject::SetMaterial(const Graphic3d_NameOfMaterial aName)
//void AIS_InteractiveObject::SetMaterial(const Graphic3d_NameOfPhysicalMaterial aName)
{
  if( HasColor() || IsTransparent() || HasMaterial() )
    {
      myDrawer->ShadingAspect()->SetMaterial(aName);
    }
  else 
    {
      myDrawer->SetShadingAspect(new Prs3d_ShadingAspect());
      
      myDrawer->ShadingAspect()->SetMaterial(aName);
#ifndef BUC60577	//???
      myDrawer->ShadingAspect()->SetColor(AIS_GraphicTool::GetInteriorColor(myDrawer->Link()));
#endif
    }
  myOwnMaterial  = aName;
  hasOwnMaterial = Standard_True;
}
//=======================================================================
//function : SetMaterial
//purpose  : 
//=======================================================================

void AIS_InteractiveObject::SetMaterial(const Graphic3d_MaterialAspect& aMat)
{
#ifdef BUC60577
  if( HasColor() || IsTransparent() || HasMaterial() )
#else
  if(hasOwnColor ||(myTransparency==0.0) || hasOwnMaterial )
#endif
    {
      myDrawer->ShadingAspect()->SetMaterial(aMat);
    }
  else 
    {
      myDrawer->SetShadingAspect(new Prs3d_ShadingAspect());
      myDrawer->ShadingAspect()->SetMaterial(aMat);
    }
  hasOwnMaterial = Standard_True;
  
}
//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::UnsetMaterial()
{
#ifdef BUC60577
  if( !HasMaterial() ) return;
  if( HasColor() || IsTransparent()) {
    myDrawer->ShadingAspect()->SetMaterial(
		AIS_GraphicTool::GetMaterial(myDrawer->Link()));
    if( HasColor() ) SetColor(myOwnColor);
    if( IsTransparent() ) SetTransparency(myTransparency);
  }
#else
  if(!hasOwnMaterial) return;
  if(hasOwnColor ||(myTransparency==0.0))
    {
      myDrawer->ShadingAspect()->SetMaterial(AIS_GraphicTool::GetMaterial(myDrawer->Link()));
    }
#endif
  else{
    Handle(Prs3d_ShadingAspect) SA;
    myDrawer->SetShadingAspect(SA);
  }
  hasOwnMaterial = Standard_False;
}

//=======================================================================
//function : SetTransparency
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetTransparency(const Standard_Real aValue)
{

#ifdef BUC60577                     // Back & Front material can be different !

  if(!HasColor() && !IsTransparent() && !HasMaterial() ) {
        myDrawer->SetShadingAspect(new Prs3d_ShadingAspect());
      if(!myDrawer->Link().IsNull())
        myDrawer->ShadingAspect()->SetMaterial(AIS_GraphicTool::GetMaterial(myDrawer->Link()));
  }
  Graphic3d_MaterialAspect FMat = myDrawer->ShadingAspect()->Aspect()->FrontMaterial();
  Graphic3d_MaterialAspect BMat = myDrawer->ShadingAspect()->Aspect()->BackMaterial();
  FMat.SetTransparency(aValue); BMat.SetTransparency(aValue);
  myDrawer->ShadingAspect()->Aspect()->SetFrontMaterial(FMat);
  myDrawer->ShadingAspect()->Aspect()->SetBackMaterial(BMat);
#else
  if(aValue<0.0 || aValue>1.0) return;
  
  if(aValue<=0.05) 
    {
      UnsetTransparency();
      return;
    }
  

  if(hasOwnColor || hasOwnMaterial || myTransparency> 0.0)
    {
      Graphic3d_MaterialAspect Mat = myDrawer->ShadingAspect()->Aspect()->FrontMaterial();
      Mat.SetTransparency(aValue);
      myDrawer->ShadingAspect()->Aspect()->SetFrontMaterial(Mat);
      myDrawer->ShadingAspect()->Aspect()->SetBackMaterial(Mat);
    }
  else
    {
      myDrawer->SetShadingAspect(new Prs3d_ShadingAspect());
      if(!myDrawer->Link().IsNull())
	myDrawer->ShadingAspect()->SetMaterial(AIS_GraphicTool::GetMaterial(myDrawer->Link()));
      Graphic3d_MaterialAspect Mat = myDrawer->ShadingAspect()->Aspect()->FrontMaterial();
      Mat.SetTransparency(aValue);
      myDrawer->ShadingAspect()->Aspect()->SetFrontMaterial(Mat);
      myDrawer->ShadingAspect()->Aspect()->SetBackMaterial(Mat);
    }
#endif
  myTransparency = aValue;
}

//=======================================================================
//function : UnsetTransparency
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::UnsetTransparency()
{
#ifdef BUC60577                     // Back & Front material can be different !
    if(HasColor() || HasMaterial() )
    {
      Graphic3d_MaterialAspect FMat = myDrawer->ShadingAspect()->Aspect()->FrontMaterial();
      Graphic3d_MaterialAspect BMat = myDrawer->ShadingAspect()->Aspect()->BackMaterial();
      FMat.SetTransparency(0.); BMat.SetTransparency(0.);
      myDrawer->ShadingAspect()->Aspect()->SetFrontMaterial(FMat);
      myDrawer->ShadingAspect()->Aspect()->SetBackMaterial(BMat);
    }
#else
    if(hasOwnColor || hasOwnMaterial )
    {
      Graphic3d_MaterialAspect Mat = myDrawer->ShadingAspect()->Aspect()->FrontMaterial();
      Mat.SetTransparency(0.0);
//      myDrawer->ShadingAspect()->Aspect()->SetFrontMaterial(Mat);
//      myDrawer->ShadingAspect()->Aspect()->SetBackMaterial(Mat);
       myDrawer->ShadingAspect()->SetMaterial(Mat);
    }
#endif
  else{
    Handle (Prs3d_ShadingAspect) SA;
    myDrawer->SetShadingAspect(SA);
  }
  myTransparency =0.0;
}
//=======================================================================
//function : Transparency
//purpose  : 
//=======================================================================
Standard_Real AIS_InteractiveObject::Transparency() const 
{
  return (myTransparency<=0.05 ? 0 : myTransparency);
// Graphic3d_MaterialAspect Mat = myDrawer->ShadingAspect()->Aspect()->FrontMaterial();
// return Mat.Transparency();
}

//=======================================================================
//function : SetAttributes
//purpose  : 
//=======================================================================

void AIS_InteractiveObject::SetAttributes(const Handle(AIS_Drawer)& aDrawer)
{myDrawer = aDrawer;}


//=======================================================================
//function : UnsetAttributes
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::UnsetAttributes()
{
  Handle(AIS_Drawer) dr = new AIS_Drawer();
  if(myDrawer->HasLink())
    dr->Link(myDrawer->Link());
  myDrawer       = dr;
  hasOwnColor    = Standard_False;
  hasOwnMaterial = Standard_False;
  myOwnWidth     = 0.0;
  myTransparency = 0.0;
}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::MustRecomputePrs(const Standard_Integer ) const 
{}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
const TColStd_ListOfInteger& AIS_InteractiveObject::ListOfRecomputeModes() const 
{return myToRecomputeModes;}

//=======================================================================
//function : 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetRecomputeOk()
{myToRecomputeModes.Clear();}


//=======================================================================
//function : AcceptDisplayMode
//purpose  : 
//=======================================================================

Standard_Boolean  AIS_InteractiveObject::AcceptDisplayMode(const Standard_Integer ) const
{return Standard_True;}

//=======================================================================
//function : DefaultDisplayMode
//purpose  : 
//=======================================================================

Standard_Integer AIS_InteractiveObject::DefaultDisplayMode() const
{return 0;}


//=======================================================================
//function : SetInfiniteState
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetInfiniteState(const Standard_Boolean aFlag)
{
  myInfiniteState = aFlag;
  Handle(Prs3d_Presentation) P;

  for(Standard_Integer i =1; i<=myPresentations.Length();i++)
  {
    P = myPresentations(i).Presentation()->Presentation();
    if(!P.IsNull())
      P->SetInfiniteState(myInfiniteState);
  }
}

//=======================================================================
//function : HasPresentation
//purpose  :
//=======================================================================
Standard_Boolean AIS_InteractiveObject::HasPresentation() const
{
  return !GetContext().IsNull()
       && GetContext()->MainPrsMgr()->HasPresentation (this, myDisplayMode);
}

//=======================================================================
//function : Presentation
//purpose  :
//=======================================================================
Handle(Prs3d_Presentation) AIS_InteractiveObject::Presentation() const
{
  return HasPresentation()
       ? GetContext()->MainPrsMgr()->Presentation (this, myDisplayMode)->Presentation()
       : Handle(Prs3d_Presentation)();
}

//=======================================================================
//function : SetAspect 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::SetAspect(const Handle(Prs3d_BasicAspect)& anAspect,
				      const Standard_Boolean globalChange) {

  if( HasPresentation() ) {
    Handle(Prs3d_Presentation) prs = Presentation();
    { Handle(Prs3d_ShadingAspect) aspect =
			Handle(Prs3d_ShadingAspect)::DownCast(anAspect);
      if( !aspect.IsNull() ) {
        if( globalChange ) prs->SetPrimitivesAspect(aspect->Aspect());
        Prs3d_Root::CurrentGroup(prs)->SetGroupPrimitivesAspect(aspect->Aspect());
        return;
      }
    }
    { Handle(Prs3d_LineAspect) aspect =
			Handle(Prs3d_LineAspect)::DownCast(anAspect);
      if( !aspect.IsNull() ) {
        if( globalChange ) prs->SetPrimitivesAspect(aspect->Aspect());
        Prs3d_Root::CurrentGroup(prs)->SetGroupPrimitivesAspect(aspect->Aspect());
        return;
      }
    }
    { Handle(Prs3d_PointAspect) aspect =
			Handle(Prs3d_PointAspect)::DownCast(anAspect);
      if( !aspect.IsNull() ) {
        if( globalChange ) prs->SetPrimitivesAspect(aspect->Aspect());
        Prs3d_Root::CurrentGroup(prs)->SetGroupPrimitivesAspect(aspect->Aspect());
        return;
      }
    }
    { Handle(Prs3d_TextAspect) aspect =
			Handle(Prs3d_TextAspect)::DownCast(anAspect);
      if( !aspect.IsNull() ) {
        if( globalChange ) prs->SetPrimitivesAspect(aspect->Aspect());
        Prs3d_Root::CurrentGroup(prs)->SetGroupPrimitivesAspect(aspect->Aspect());
        return;
      }
    }
  }
}

//=======================================================================
//function : SetPolygonOffsets 
//purpose  : 
//======================================================================= 
void AIS_InteractiveObject::SetPolygonOffsets(const Standard_Integer    aMode,
                                              const Standard_ShortReal  aFactor,
                                              const Standard_ShortReal  aUnits) 
{
  if ( !HasPolygonOffsets() )
    myDrawer->SetShadingAspect(new Prs3d_ShadingAspect());

  myDrawer->ShadingAspect()->Aspect()->SetPolygonOffsets( aMode, aFactor, aUnits );

  // Modify existing presentations 
  for (Standard_Integer aPrsIter = 1, n = myPresentations.Length(); aPrsIter <= n; ++aPrsIter)
  {
    const Handle(PrsMgr_Presentation)& aPrs3d = myPresentations (aPrsIter).Presentation();
    if ( !aPrs3d.IsNull() ) {
      const Handle(Graphic3d_Structure)& aStruct = aPrs3d->Presentation();
      if( !aStruct.IsNull() ) {
        aStruct->SetPrimitivesAspect( myDrawer->ShadingAspect()->Aspect() );
        // Workaround for issue 23115: Need to update also groups, because their
        // face aspect ALWAYS overrides the structure's.
        const Graphic3d_SequenceOfGroup& aGroups = aStruct->Groups();
        for (Graphic3d_SequenceOfGroup::Iterator aGroupIter (aGroups); aGroupIter.More(); aGroupIter.Next())
        {
          Handle(Graphic3d_Group)& aGrp = aGroupIter.ChangeValue();
          if (aGrp.IsNull()
          || !aGrp->IsGroupPrimitivesAspectSet (Graphic3d_ASPECT_FILL_AREA))
          {
            continue;
          }

          Handle(Graphic3d_AspectFillArea3d) aFaceAsp = new Graphic3d_AspectFillArea3d();
          Handle(Graphic3d_AspectLine3d)     aLineAsp = new Graphic3d_AspectLine3d();
          Handle(Graphic3d_AspectMarker3d)   aPntAsp  = new Graphic3d_AspectMarker3d();
          Handle(Graphic3d_AspectText3d)     aTextAsp = new Graphic3d_AspectText3d();
          // TODO: Add methods for retrieving individual aspects from Graphic3d_Group
          aGrp->GroupPrimitivesAspect(aLineAsp, aTextAsp, aPntAsp, aFaceAsp);
          aFaceAsp->SetPolygonOffsets(aMode, aFactor, aUnits);
          aGrp->SetGroupPrimitivesAspect(aFaceAsp);
        }
      }
    }
  }
}

//=======================================================================
//function : HasPolygonOffsets 
//purpose  : 
//=======================================================================
Standard_Boolean AIS_InteractiveObject::HasPolygonOffsets() const
{
  return !( myDrawer->ShadingAspect().IsNull() || 
          ( !myDrawer->Link().IsNull() && 
          myDrawer->ShadingAspect() == myDrawer->Link()->ShadingAspect() ) );
}

//=======================================================================
//function : PolygonOffsets 
//purpose  : 
//=======================================================================
void AIS_InteractiveObject::PolygonOffsets(Standard_Integer&    aMode,
                                           Standard_ShortReal&  aFactor,
                                           Standard_ShortReal&  aUnits) const 
{
  if( HasPolygonOffsets() )
    myDrawer->ShadingAspect()->Aspect()->PolygonOffsets( aMode, aFactor, aUnits );
}