// File:	AIS_Chamf3dDimension.cdl
// Created:	Tue Dec  5 15:09:04 1996
// Author:	Odile Olivier
//              <ODL>

#define BUC60915        //GG 05/06/01 Enable to compute the requested arrow size
//                      if any in all dimensions.

#include <Standard_NotImplemented.hxx>

#include <AIS_Chamf3dDimension.ixx>

#include <DsgPrs_Chamf2dPresentation.hxx>

#include <Prs3d_ArrowAspect.hxx>
#include <Prs3d_LengthAspect.hxx>
#include <Prs3d_Drawer.hxx>

#include <SelectMgr_EntityOwner.hxx>
#include <Select3D_SensitiveSegment.hxx>

#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Edge.hxx>

#include <TopAbs_Orientation.hxx>

#include <Bnd_Box.hxx>
#include <BRepBndLib.hxx>

#include <gp_Dir.hxx>
#include <gp_Pln.hxx>
#include <gp_Vec.hxx>

#include <Geom_Line.hxx>

#include <ElCLib.hxx>

#include <Precision.hxx>

#include <TCollection_AsciiString.hxx>
#include <TCollection_ExtendedString.hxx>

#include <BRepTools_WireExplorer.hxx>

#include <AIS.hxx>
#include <AIS_Drawer.hxx>

#include <BRepAdaptor_Surface.hxx>
#include <ProjLib.hxx>
#include <Select3D_SensitiveBox.hxx>

//=======================================================================
//function : Constructor
//purpose  : 
//=======================================================================
AIS_Chamf3dDimension::AIS_Chamf3dDimension(const TopoDS_Shape& aFShape, 
					   const Standard_Real aVal, 
					   const TCollection_ExtendedString& aText)
:AIS_Relation()
{
  myFShape = aFShape;
  myVal = aVal;
  myText = aText;
  mySymbolPrs = DsgPrs_AS_LASTAR;
  myAutomaticPosition = Standard_True;

  myArrowSize = myVal / 100.;
}
//=======================================================================
//function : Constructor
//purpose  : 
//=======================================================================
AIS_Chamf3dDimension::AIS_Chamf3dDimension(const TopoDS_Shape& aFShape, 
					   const Standard_Real aVal, 
					   const TCollection_ExtendedString& aText,
					   const gp_Pnt& aPosition, 
					   const DsgPrs_ArrowSide aSymbolPrs ,
					   const Standard_Real anArrowSize)
:AIS_Relation()
{
  myFShape = aFShape;
  myVal = aVal;
  myText = aText;
  myPosition = aPosition;
  mySymbolPrs = aSymbolPrs;
#ifdef BUC60915
  SetArrowSize( anArrowSize );
#else
  myArrowSize = anArrowSize;
#endif
  myAutomaticPosition = Standard_False;
}


//=======================================================================
//function : Compute
//purpose  : 
//=======================================================================

void AIS_Chamf3dDimension::Compute(const Handle(PrsMgr_PresentationManager3d)& , 
				   const Handle(Prs3d_Presentation)& aPresentation, 
				   const Standard_Integer)
{
  aPresentation->Clear();

  //----------------------------
  // Calcul du centre de la face
  //----------------------------
  BRepAdaptor_Surface surfAlgo (TopoDS::Face(myFShape));
  Standard_Real uFirst, uLast, vFirst, vLast;
  uFirst = surfAlgo.FirstUParameter();
  uLast = surfAlgo.LastUParameter();
  vFirst = surfAlgo.FirstVParameter();
  vLast = surfAlgo.LastVParameter();
  Standard_Real uMoy = (uFirst + uLast)/2;
  Standard_Real vMoy = (vFirst + vLast)/2;
  gp_Pnt apos ;
  gp_Vec d1u, d1v;
  surfAlgo.D1(uMoy, vMoy, apos, d1u, d1v);
  myPntAttach = apos;

  myDir = d1u ^ d1v;
//  myDir = surfAlgo.Plane().Axis().Direction();


 
   
  //--------------------------------------------
  //Calcul du point de positionnement du texte
  //--------------------------------------------
  gp_Pnt curpos;
  if (myAutomaticPosition) {
    gp_Vec transVec(myDir);
    transVec*=myVal;
    curpos = myPntAttach.Translated(transVec);
    
    if (myIsSetBndBox)
      curpos = AIS::TranslatePointToBound( curpos, myDir, myBndBox );
    
    myPosition = curpos;
  }
  else {
    
    Handle(Geom_Line) dimLin = new Geom_Line(myPntAttach, myDir);
    Standard_Real parcurpos = ElCLib::Parameter(dimLin->Lin(),myPosition);
    curpos = ElCLib::Value(parcurpos,dimLin->Lin());

    if ( curpos.Distance(myPntAttach) < 5. ) {
      gp_Vec transVec(myDir);
      transVec*=5.;
      curpos = myPntAttach.Translated(transVec);
    }
    myPosition = curpos;
  }
    
  Handle(Prs3d_LengthAspect) la = myDrawer->LengthAspect();
  Handle(Prs3d_ArrowAspect) arr = la->Arrow1Aspect();
    
  //-------------------------------------------------
  //Calcul de la boite englobante du component pour
  //determiner la taille de la fleche
  //-------------------------------------------------
#ifdef BUC60915
  if( !myArrowSizeIsDefined ) {
#endif
    Standard_Real arrsize = myArrowSize;
    if ( (myVal/4) < arrsize)
      arrsize = myVal/4;
    if (arrsize > 30.) 
      arrsize = 30.;
    else if (arrsize < 8.)
      arrsize = 8.;
#ifdef BUC60915
    myArrowSize = arrsize;
  }
  arr->SetLength(myArrowSize);
#else
  arr->SetLength(arrsize);
#endif
  
  //Calcul de la presentation
  DsgPrs_Chamf2dPresentation::Add(aPresentation,
				  myDrawer,
				  myPntAttach,
				  curpos,
				  myText,
				  mySymbolPrs);
  
}

//=======================================================================
//function : Compute
//purpose  : to avoid warning
//=======================================================================

void AIS_Chamf3dDimension::Compute(const Handle(Prs3d_Projector)& aProjector,
				   const Handle(Prs3d_Presentation)& aPresentation)
{
// Standard_NotImplemented::Raise("AIS_Chamf3dDimension::Compute(const Handle(Prs3d_Projector)&,const Handle(Prs3d_Presentation)&)");
 PrsMgr_PresentableObject::Compute( aProjector , aPresentation ) ;
}

//=======================================================================
//function : Compute
//purpose  : to avoid warning
//=======================================================================

void AIS_Chamf3dDimension::Compute(const Handle(PrsMgr_PresentationManager2d)& aPresentationManager2d,
				   const Handle(Graphic2d_GraphicObject)& aGraphicObject, 
				   const Standard_Integer anInteger)
{
// Standard_NotImplemented::Raise("AIS_Chamf3dDimension::Compute(const Handle(PrsMgr_PresentationManager2d)&,const Handle(Graphic2d_GraphicObject)&,const Standard_Integer)");
 PrsMgr_PresentableObject::Compute( aPresentationManager2d ,aGraphicObject,anInteger) ;
}

void AIS_Chamf3dDimension::Compute(const Handle_Prs3d_Projector& aProjector, const Handle_Geom_Transformation& aTransformation, const Handle_Prs3d_Presentation& aPresentation)
{
// Standard_NotImplemented::Raise("AIS_Chamf3dDimension::Compute(const Handle_Prs3d_Projector&, const Handle_Geom_Transformation&, const Handle_Prs3d_Presentation&)");
  PrsMgr_PresentableObject::Compute( aProjector , aTransformation , aPresentation ) ;
}

//=======================================================================
//function : ComputeSelection
//purpose  : 
//=======================================================================

void AIS_Chamf3dDimension::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection, 
					    const Standard_Integer)
{
  Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7);
  Handle(Select3D_SensitiveSegment) seg = new Select3D_SensitiveSegment(own,myPntAttach,myPosition);
  aSelection->Add(seg);

  // Text
  Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
  Handle( Select3D_SensitiveBox ) box = new Select3D_SensitiveBox( own,
								   myPosition.X(),
								   myPosition.Y(),
								   myPosition.Z(),
								   myPosition.X() + size,
								   myPosition.Y() + size,
								   myPosition.Z() + size);    
  aSelection->Add(box);
}