
#include <Standard_Stream.hxx>

#include <GEOMImpl_TranslateDriver.hxx>
#include <GEOMImpl_ITranslate.hxx>
#include <GEOMImpl_Types.hxx>
#include <GEOM_Function.hxx>
#include <gp_Trsf.hxx>
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#include <BRepBuilderAPI_Transform.hxx>
#include <BRep_Builder.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Compound.hxx>
#include <TopAbs.hxx>
#include <TopExp.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Edge.hxx>
#include <BRep_Tool.hxx>

//=======================================================================
//function : GetID
//purpose  :
//======================================================================= 
const Standard_GUID& GEOMImpl_TranslateDriver::GetID()
{
  static Standard_GUID aTranslateDriver("FF1BBB03-5D14-4df2-980B-3A668264EA16");
  return aTranslateDriver; 
}


//=======================================================================
//function : GEOMImpl_TranslateDriver
//purpose  : 
//=======================================================================

GEOMImpl_TranslateDriver::GEOMImpl_TranslateDriver() 
{
}

//=======================================================================
//function : Execute
//purpose  :
//======================================================================= 
Standard_Integer GEOMImpl_TranslateDriver::Execute(TFunction_Logbook& log) const
{
  if(Label().IsNull())  return 0;    
  Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());

  if(aFunction.IsNull()) return 0;

  GEOMImpl_ITranslate TI(aFunction);
  gp_Trsf aTrsf;
  gp_Pnt aP1, aP2;
  Standard_Integer aType = aFunction->GetType();

  Handle(GEOM_Function) anOriginalFunction = TI.GetOriginal();
  if(anOriginalFunction.IsNull()) return 0;
  TopoDS_Shape aShape, anOriginal = anOriginalFunction->GetValue();
  if(anOriginal.IsNull()) return 0;

  if(aType == TRANSLATE_TWO_POINTS || aType == TRANSLATE_TWO_POINTS_COPY) {
    Handle(GEOM_Function) aPoint1 = TI.GetPoint1();
    Handle(GEOM_Function) aPoint2 = TI.GetPoint2();
    if(aPoint1.IsNull() || aPoint2.IsNull()) return 0;
    TopoDS_Shape aV1 = aPoint1->GetValue();
    TopoDS_Shape aV2 = aPoint2->GetValue();
    if(aV1.IsNull() || aV1.ShapeType() != TopAbs_VERTEX) return 0;
    if(aV2.IsNull() || aV2.ShapeType() != TopAbs_VERTEX) return 0;

    aP1 = BRep_Tool::Pnt(TopoDS::Vertex(aV1));
    aP2 = BRep_Tool::Pnt(TopoDS::Vertex(aV2));

    aTrsf.SetTranslation(aP1, aP2);
    BRepBuilderAPI_Transform aTransformation(anOriginal, aTrsf, Standard_False);
    aShape = aTransformation.Shape();

  } else if(aType == TRANSLATE_VECTOR || aType == TRANSLATE_VECTOR_COPY) {
    Handle(GEOM_Function) aVector = TI.GetVector();
    if(aVector.IsNull()) return 0;
    TopoDS_Shape aV = aVector->GetValue();
    if(aV.IsNull() || aV.ShapeType() != TopAbs_EDGE) return 0;
    TopoDS_Edge anEdge = TopoDS::Edge(aV);

    aP1 = BRep_Tool::Pnt(TopExp::FirstVertex(anEdge));
    aP2 = BRep_Tool::Pnt(TopExp::LastVertex(anEdge));

    aTrsf.SetTranslation(aP1, aP2);
    BRepBuilderAPI_Transform aTransformation(anOriginal, aTrsf, Standard_False);
    aShape = aTransformation.Shape();
  }
  else if(aType == TRANSLATE_XYZ || aType == TRANSLATE_XYZ_COPY) {
    gp_Vec aVec(TI.GetDX(), TI.GetDY(), TI.GetDZ());
    aTrsf.SetTranslation(aVec);
    BRepBuilderAPI_Transform aTransformation(anOriginal, aTrsf, Standard_False);
    aShape = aTransformation.Shape();
  }
  else if(aType == TRANSLATE_1D) {
    Standard_Real DX, DY, DZ, step = TI.GetStep1();
    Standard_Integer nbtimes = TI.GetNbIter1();
    gp_Vec myVec ;
    TopoDS_Compound aCompound;
    BRep_Builder B;
    B.MakeCompound( aCompound );

    Handle(GEOM_Function) aVector = TI.GetVector();
    if(aVector.IsNull()) return 0;
    TopoDS_Shape aV = aVector->GetValue();
    if(aV.IsNull() || aV.ShapeType() != TopAbs_EDGE) return 0;
    TopoDS_Edge anEdge = TopoDS::Edge(aV);

    gp_Vec Vec(BRep_Tool::Pnt(TopExp::FirstVertex(anEdge)), BRep_Tool::Pnt(TopExp::LastVertex(anEdge)));
    Vec.Normalize();

    for (int i = 0; i < nbtimes; i++ ) {
      DX = i * step * Vec.X() ;
      DY = i * step * Vec.Y() ;
      DZ = i * step * Vec.Z() ;
      myVec.SetCoord( DX, DY, DZ ) ;
      aTrsf.SetTranslation(myVec) ;
      BRepBuilderAPI_Transform aTransformation(anOriginal, aTrsf, Standard_False) ;
      B.Add(aCompound , aTransformation.Shape() );
    }
    aShape = aCompound;   
  }
  else if(aType == TRANSLATE_2D) {
    Standard_Integer nbtimes1 = TI.GetNbIter1(), nbtimes2 = TI.GetNbIter2();
    Standard_Real DX, DY, DZ,  step1 = TI.GetStep1(),  step2 = TI.GetStep2();
    gp_Vec myVec ;
    Handle(GEOM_Function) aVector = TI.GetVector();
    if(aVector.IsNull()) return 0;
    TopoDS_Shape aV = aVector->GetValue();
    if(aV.IsNull() || aV.ShapeType() != TopAbs_EDGE) return 0;
    TopoDS_Edge anEdge = TopoDS::Edge(aV);

    gp_Vec Vec1(BRep_Tool::Pnt(TopExp::FirstVertex(anEdge)), BRep_Tool::Pnt(TopExp::LastVertex(anEdge)));
    Vec1.Normalize();

    Handle(GEOM_Function) aVector2 = TI.GetVector2();
    if(aVector2.IsNull()) return 0;
    aV = aVector2->GetValue();
    if(aV.IsNull() || aV.ShapeType() != TopAbs_EDGE) return 0;
    anEdge = TopoDS::Edge(aV);

    gp_Vec Vec2(BRep_Tool::Pnt(TopExp::FirstVertex(anEdge)), BRep_Tool::Pnt(TopExp::LastVertex(anEdge)));
    Vec2.Normalize();

    TopoDS_Compound aCompound;
    BRep_Builder B;
    B.MakeCompound( aCompound );
    
    for (int i = 0; i < nbtimes1; i++ ) {
      for (int j = 0; j < nbtimes2; j++ ) {
	DX = i * step1 * Vec1.X() + j * step2 * Vec2.X() ;
	DY = i * step1 * Vec1.Y() + j * step2 * Vec2.Y() ;
	DZ = i * step1 * Vec1.Z() + j * step2 * Vec2.Z() ;
	myVec.SetCoord( DX, DY, DZ ) ;
	aTrsf.SetTranslation(myVec) ;
	BRepBuilderAPI_Transform myBRepTransformation(anOriginal, aTrsf, Standard_False) ;
	B.Add(aCompound , myBRepTransformation.Shape() );
      }
    }
   aShape = aCompound;  
  }
  else return 0;

 

  if (aShape.IsNull()) return 0;

  aFunction->SetValue(aShape);

  log.SetTouched(Label()); 

  return 1;
}


//=======================================================================
//function :  GEOMImpl_TranslateDriver_Type_
//purpose  :
//======================================================================= 
Standard_EXPORT Handle_Standard_Type& GEOMImpl_TranslateDriver_Type_()
{

  static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
  if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
  static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
  if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared); 
  static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
  if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
 

  static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
  static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_TranslateDriver",
			                                 sizeof(GEOMImpl_TranslateDriver),
			                                 1,
			                                 (Standard_Address)_Ancestors,
			                                 (Standard_Address)NULL);

  return _aType;
}

//=======================================================================
//function : DownCast
//purpose  :
//======================================================================= 

const Handle(GEOMImpl_TranslateDriver) Handle(GEOMImpl_TranslateDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
{
  Handle(GEOMImpl_TranslateDriver) _anOtherObject;

  if (!AnObject.IsNull()) {
     if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_TranslateDriver))) {
       _anOtherObject = Handle(GEOMImpl_TranslateDriver)((Handle(GEOMImpl_TranslateDriver)&)AnObject);
     }
  }

  return _anOtherObject ;
}


