// Created on: 1998-11-20
// Created by: Robert COUBLANC
// Copyright (c) 1998-1999 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 <ViewerTest.hxx>
#include <BRepTest.hxx>
#include <DBRep.hxx>
#include <Draw_Interpretor.hxx>
#include <Draw_Appli.hxx>
#include <BRepFilletAPI_MakeFillet.hxx>
#include <TopAbs_ShapeEnum.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS.hxx>
#include <TopExp.hxx>

#include <ChFi3d_FilletShape.hxx>
#include <TopTools_HArray1OfShape.hxx>

#include <AIS_InteractiveContext.hxx>
#include <AIS_InteractiveObject.hxx>
#include <AIS_Shape.hxx>

#ifdef _WIN32
//#define strcasecmp strcmp Already defined in Standard
# include <stdio.h>
#endif

static Standard_Real t3d = 1.e-4;
static Standard_Real t2d = 1.e-5;
static Standard_Real ta  = 1.e-2;
static Standard_Real fl  = 1.e-3;
static Standard_Real tapp_angle = 1.e-2;
static GeomAbs_Shape blend_cont = GeomAbs_C1;

static BRepFilletAPI_MakeFillet* Rakk = 0;


static void printtolblend(Draw_Interpretor& di)
{
  di<<"tolerance ang : "<<ta<<"\n";
  di<<"tolerance 3d  : "<<t3d<<"\n";
  di<<"tolerance 2d  : "<<t2d<<"\n";
  di<<"fleche        : "<<fl<<"\n";

  di<<"tolblend "<<ta<<" "<<t3d<<" "<<t2d<<" "<<fl<<"\n";
}

static Standard_Integer VBLEND(Draw_Interpretor& di, Standard_Integer narg, const char** a)
{
  if(Rakk != 0) {delete Rakk; Rakk = 0;}
  printtolblend(di);
  if (narg<5) return 1;
  
  Standard_Integer NbToPick = (narg -4)/2;
  Handle(TopTools_HArray1OfShape) arr = new TopTools_HArray1OfShape(1,NbToPick);
  if(ViewerTest::PickShapes(TopAbs_EDGE,arr)){
    for(Standard_Integer i=1;i<=NbToPick;i++){
      TopoDS_Shape PickSh = arr->Value(i);
      if(!PickSh.IsNull()){
	DBRep::Set(a[(2*i+2)],PickSh);
      }
    }
  }
  
  TopoDS_Shape V = DBRep::Get(a[2]);
  if(V.IsNull()) return 1;
  ChFi3d_FilletShape FSh = ChFi3d_Rational;
  if (narg%2 == 0) {
    if (!strcasecmp(a[narg-1], "Q")) {
      FSh = ChFi3d_QuasiAngular;
    }
    else if (!strcasecmp(a[narg-1], "P")) {
      FSh = ChFi3d_Polynomial;
    }
  }
  Rakk = new BRepFilletAPI_MakeFillet(V,FSh);
  Rakk->SetParams(ta,t3d,t2d,t3d,t2d,fl);
  Rakk->SetContinuity(blend_cont, tapp_angle);
  Standard_Real Rad;
  TopoDS_Edge E;
  Standard_Integer nbedge = 0;
  for (Standard_Integer ii = 1; ii < (narg-1)/2; ii++){
    Rad = Draw::Atof(a[2*ii + 1]);
    TopoDS_Shape aLocalShape = DBRep::Get(a[(2*ii+2)],TopAbs_EDGE);
    E = TopoDS::Edge(aLocalShape);
//    E = TopoDS::Edge(DBRep::Get(a[(2*ii+2)],TopAbs_EDGE));
    if(!E.IsNull()){
      Rakk->Add(Rad,E);
      nbedge++;
    }
  }
  if(!nbedge) return 1;
  Rakk->Build();
  if(!Rakk->IsDone()) return 1;
  TopoDS_Shape res = Rakk->Shape();
  DBRep::Set(a[1],res);

  // visu resultat...
  ViewerTest::Display (a[2], Handle(AIS_InteractiveObject)(), false);
  ViewerTest::Display (a[1], new AIS_Shape (res), true);
  return 0;
}




void  ViewerTest::FilletCommands(Draw_Interpretor& theCommands)
{
  const char* g = "Viewer Fillet construction commands";
  theCommands.Add("vblend",
		  "vblend result object rad1 ed1 rad2 ed2 ... [R/Q/P]",__FILE__,
		  VBLEND,g);
}
