// 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.

#ifndef Interface_Translates_HeaderFile
#define Interface_Translates_HeaderFile

//  Interface_Translates.hxx

//  This set of macros provides some simple translation formula, i.e.
//  from a HSequence to an HArray and reverse
//  Include files for the types of HSequence and HArray1 remain to be called
//  Other kinds of translations remain to be completely written

//  from HSequence to HArray1 : creates the HArray1 if HSequence not empty
//  from HArray1 to HSequence : the HSequence must have been already created

//  SeqToArray(seq,arr,TColStd_HArray1OfReal)  will :
//    consider <seq> input HSequence (here, must be TColStd_HSequenceOfReal)
//    consider <arr> output HArray1, declared but to be created
//    do nothing if <seq> is null or empty; else
//    create <arr> as TColStd_HArrayOfReal(1,seq->Length())
//    then fill each value of <arr> with the homologous from <seq>

//  SeqToArrayFrom(seq,arr,TColStd_HArray1OfReal,lowind)  will :
//    consider <lowind> as an Integer (variable or constant) which defines
//    the desired lower index if different from one
//    do the same thing as SeqToArray if <lowind> equates 1
//    else fixes lower index of <arr> as <lowind>

//  SeqToArrayCast(seq,arr,Interface_HArray1OfHAsciiString,TCollection_HAsciiString)  will :
//    do as SeqToArray, but array values are Handles to be casted
//      (if <seq> does not work with the same type, e.g. Standard_Transient)
//    fill array value by the result of DownCast of the type <typent>

//  ArrayToSeq(arr,seq) will fill <seq> a sequence with the items of <arr> a
//  HArray1. <seq> and <arr> are already created (<seq> can be empty or not)
//  Items from <arr> are considered as compatible with items from <seq>
//    (no DownCast required for Handles)


#define SeqToArrayFrom(seq,arr,typarr,lowind) \
if (!seq.IsNull()) {\
    Standard_Integer numseq, lenseq = seq->Length();\
    if (lenseq > 0) {\
      arr = new typarr (lowind,lenseq+1-lowind);\
      for (numseq = 1; numseq <= lenseq; numseq ++)\
	arr->SetValue (numseq+1-lowind, seq->Value(numseq));\
    }\
  }

#define SeqToArray(seq,arr,typarr) \
  if (!seq.IsNull()) {\
    Standard_Integer numseq, lenseq = seq->Length();\
    if (lenseq > 0) {\
      arr = new typarr (1,lenseq);\
      for (numseq = 1; numseq <= lenseq; numseq ++)\
	arr->SetValue (numseq, seq->Value(numseq));\
    }\
  }

#define SeqToArrayCast(seq,arr,typarr,typent) \
  if (!seq.IsNull()) {\
    Standard_Integer numseq, lenseq = seq->Length();\
    if (lenseq > 0) {\
      arr = new typarr (1,lenseq);\
      for (numseq = 1; numseq <= lenseq; numseq ++)\
	arr->SetValue (numseq, Handle(typent)::DownCast(seq->Value(numseq)));\
    }\
  }

#define ArrayToSeq (arr,seq)\
  {\
    Standard_Integer nument, numlow = arr->Lower() , numup = arr->Upper();\
    for (nument = numlow; nument <= numup; nument ++)\
      seq->Append(arr->Value(nument));\
  }

#endif