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salome-gui  6.5.0
SVTK_Prs.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 //  SALOME VTKViewer : build VTK viewer into Salome desktop
00024 //  File   : SVTK_Prs.cxx
00025 //  Author : Sergey ANIKIN
00026 
00027 #include "SVTK_Prs.h"
00028 
00029 #include <vtkActorCollection.h>
00030 
00034 SVTK_Prs::SVTK_Prs() : myObjects( 0 )
00035 {
00036 }
00037  
00041 SVTK_Prs::SVTK_Prs( const vtkActor* obj ) 
00042 { 
00043   AddObject( obj ); 
00044 }
00045 
00049 SVTK_Prs:: ~SVTK_Prs() 
00050 { 
00051   if ( myObjects ) myObjects->Delete(); 
00052 }
00053 
00057 vtkActorCollection* SVTK_Prs::GetObjects() const 
00058 { 
00059   return myObjects; 
00060 }
00061 
00065 void SVTK_Prs::AddObject( const vtkActor* obj ) 
00066 { 
00067   if ( !myObjects) 
00068     myObjects = vtkActorCollection::New(); 
00069   myObjects->AddItem( (vtkActor*)obj ); 
00070 }
00071   
00075 bool SVTK_Prs::IsNull() const 
00076 { 
00077   return !myObjects || myObjects->GetNumberOfItems() <= 0; 
00078 }