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salome-geom  6.5.0
GEOMAlgo_StateCollector.cxx
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00001 // Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
00002 //
00003 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
00004 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
00005 //
00006 // This library is free software; you can redistribute it and/or
00007 // modify it under the terms of the GNU Lesser General Public
00008 // License as published by the Free Software Foundation; either
00009 // version 2.1 of the License.
00010 //
00011 // This library is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014 // Lesser General Public License for more details.
00015 //
00016 // You should have received a copy of the GNU Lesser General Public
00017 // License along with this library; if not, write to the Free Software
00018 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
00019 //
00020 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
00021 //
00022 
00023 // File:        GEOMAlgo_StateCollector.cxx
00024 // Created:     Thu Mar 10 09:42:11 2005
00025 // Author:      Peter KURNEV
00026 //              <pkv@irinox>
00027 //
00028 #include <GEOMAlgo_StateCollector.hxx>
00029 
00030 //=======================================================================
00031 //function : GEOMAlgo_StateCollector
00032 //purpose  :
00033 //=======================================================================
00034 GEOMAlgo_StateCollector::GEOMAlgo_StateCollector()
00035 {
00036   myCounter[0]=0;
00037   myCounter[1]=0;
00038   myCounter[2]=0;
00039 }
00040 //=======================================================================
00041 //function : AppendState
00042 //purpose  :
00043 //=======================================================================
00044 Standard_Boolean GEOMAlgo_StateCollector::AppendState(const TopAbs_State aSt)
00045 {
00046   Standard_Boolean bIsToBreak;
00047   //
00048   switch(aSt) {
00049     case TopAbs_IN:
00050       ++myCounter[0];
00051       break;
00052     case TopAbs_OUT:
00053       ++myCounter[1];
00054       break;
00055     case TopAbs_ON:
00056       ++myCounter[2];
00057       break;
00058     default:
00059       break;
00060   }
00061   bIsToBreak=(myCounter[0] && myCounter[1]);
00062   //
00063   return bIsToBreak;
00064 }
00065 //=======================================================================
00066 //function : State
00067 //purpose  :
00068 //=======================================================================
00069 TopAbs_State GEOMAlgo_StateCollector::State()const
00070 {
00071   TopAbs_State aSt;
00072   //
00073   aSt=TopAbs_UNKNOWN;
00074   //
00075   if (myCounter[0] && myCounter[1]) {
00076     return aSt;
00077   }
00078   //
00079   else if (myCounter[0] && myCounter[2]>=0) {
00080     aSt=TopAbs_IN;
00081   }
00082   //
00083   else if (myCounter[1] && myCounter[2]>=0) {
00084     aSt=TopAbs_OUT;
00085   }
00086   //
00087   else if (!myCounter[0] && !myCounter[1] && myCounter[2]) {
00088     aSt=TopAbs_ON;
00089   }
00090   //
00091   return aSt;
00092 }