OCCT

// Created on: 1996-12-30
// Created by: Stagiaire Mary FABIEN
// 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.

#include <BRep_Builder.hxx>
#include <BRepBuilderAPI_GTransform.hxx>
#include <BRepBuilderAPI_NurbsConvert.hxx>
#include <BRepTools_GTrsfModification.hxx>
#include <BRepTools_NurbsConvertModification.hxx>
#include <gp_GTrsf.hxx>
#include <TopoDS_Shape.hxx>
#include <NCollection_List.hxx>

//=================================================================================================

BRepBuilderAPI_GTransform::BRepBuilderAPI_GTransform(const gp_GTrsf& T)
    : myGTrsf(T)
{
  myModification = new BRepTools_GTrsfModification(T);
}

//=================================================================================================

BRepBuilderAPI_GTransform::BRepBuilderAPI_GTransform(const TopoDS_Shape& S,
                                                     const gp_GTrsf&     T,
                                                     const bool          Copy)
    : myGTrsf(T)
{
  myModification = new BRepTools_GTrsfModification(T);
  Perform(S, Copy);
}

//=================================================================================================

void BRepBuilderAPI_GTransform::Perform(const TopoDS_Shape& S, const bool Copy)
{
  BRepBuilderAPI_NurbsConvert nc;
  nc.Perform(S, Copy);
  myHist.Add(S, nc);
  TopoDS_Shape                             Slocal = nc.Shape();
  occ::handle<BRepTools_GTrsfModification> theModif =
    occ::down_cast<BRepTools_GTrsfModification>(myModification);
  theModif->GTrsf() = myGTrsf;
  DoModif(Slocal, myModification);
  //  myHist.Filter (Shape());
}

//=================================================================================================

const NCollection_List<TopoDS_Shape>& BRepBuilderAPI_GTransform::Modified(const TopoDS_Shape& F)
{
  myGenerated.Clear();
  const NCollection_DataMap<TopoDS_Shape, NCollection_List<TopoDS_Shape>, TopTools_ShapeMapHasher>&
    M = myHist.Modification();
  if (M.IsBound(F))
  {
    NCollection_List<TopoDS_Shape>           Li;
    NCollection_List<TopoDS_Shape>::Iterator itL(M(F));
    for (; itL.More(); itL.Next())
    {
      Li.Assign(BRepBuilderAPI_ModifyShape::Modified(itL.Value()));
    }
  }
  return myGenerated;
}

//=================================================================================================

TopoDS_Shape BRepBuilderAPI_GTransform::ModifiedShape(const TopoDS_Shape& S) const
{
  const NCollection_DataMap<TopoDS_Shape, NCollection_List<TopoDS_Shape>, TopTools_ShapeMapHasher>&
               aMapModif = myHist.Modification();
  TopoDS_Shape aShape    = S;

  if (aMapModif.IsBound(S))
  {
    const NCollection_List<TopoDS_Shape>& aListModShape = aMapModif(S);
    int                                   aNbShapes     = aListModShape.Extent();

    if (aNbShapes > 0)
    {
      aShape = aListModShape.First();
    }
  }

  return BRepBuilderAPI_ModifyShape::ModifiedShape(aShape);
}