0031642: Visualization - crash in Graphic3d_Structure::SetVisual() on redisplaying...

[occt.git] / src / TopOpeBRepBuild / TopOpeBRepBuild_GIter.cxx

// Created on: 1996-02-13
// Created by: Jean Yves LEBEY
// 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 <TopOpeBRepBuild_GIter.hxx>
#include <TopOpeBRepBuild_GTopo.hxx>

#define MYGTOPO (*((TopOpeBRepBuild_GTopo*)mypG))

TopOpeBRepBuild_GIter::TopOpeBRepBuild_GIter() : myII(0),mypG(NULL)
{
}

TopOpeBRepBuild_GIter::TopOpeBRepBuild_GIter(const TopOpeBRepBuild_GTopo& G) :
myII(0),mypG(NULL)
{
  Init(G);
}

void TopOpeBRepBuild_GIter::Find()
{
  while ( myII <= 8 ) {
    Standard_Boolean b = MYGTOPO.Value(myII);
    if (b) break;
    myII++;
  }
}

void TopOpeBRepBuild_GIter::Init()
{
  myII = 0;
  Find();
}

void TopOpeBRepBuild_GIter::Init(const TopOpeBRepBuild_GTopo& G)
{
  mypG = (Standard_Address)&G;
  Init();
}

Standard_Boolean TopOpeBRepBuild_GIter::More() const 
{
  if (myII <= 8) {
    Standard_Boolean b = MYGTOPO.Value(myII);
    return b;
  }
  else 
    return Standard_False;
}

void TopOpeBRepBuild_GIter::Next()
{
  myII++;
  Find();
}

void TopOpeBRepBuild_GIter::Current(TopAbs_State& s1, TopAbs_State& s2) const 
{
  if ( !More() )
  {
    s1 = s2 = TopAbs_UNKNOWN;
    return;
  }
  Standard_Integer i1,i2; 
  MYGTOPO.Index(myII,i1,i2);
  s1 = MYGTOPO.GState(i1);
  s2 = MYGTOPO.GState(i2);
}

void TopOpeBRepBuild_GIter::Dump(Standard_OStream& OS) const 
{
  if ( !More()) return;
  TopAbs_State s1,s2; Current(s1,s2);
  Standard_Boolean b = MYGTOPO.Value(s1,s2);
  TopOpeBRepBuild_GTopo::DumpSSB(OS,s1,s2,b); OS<<std::endl;
}