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salome-gui  6.5.0
VTKViewer_Algorithm.h
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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   : VTKViewer_ViewFrame.h
00025 //  Author : Nicolas REJNERI
00026 
00027 #ifndef VTKViewer_Algorithm_H
00028 #define VTKViewer_Algorithm_H
00029 
00030 #include "VTKViewer.h"
00031 
00032 #include <vtkActorCollection.h>
00033 
00034 class vtkActor;
00035 
00036 namespace VTK
00037 {
00054   struct VTKVIEWER_EXPORT ActorCollectionCopy
00055   {
00056     vtkActorCollection* myActorCollection;
00057 
00058     ActorCollectionCopy( vtkActorCollection* theActorCollection );
00059     ~ActorCollectionCopy();
00060 
00061     vtkActorCollection* GetActors() const;
00062   };
00063 
00067     template<typename TActor, typename TFunction>
00068       TFunction ForEach(vtkActorCollection *theCollection, TFunction theFun)
00069       {
00070         if(theCollection){
00071           theCollection->InitTraversal();
00072           while(vtkActor *anAct = theCollection->GetNextActor())
00073             if(TActor *anActor = dynamic_cast<TActor*>(anAct))
00074               theFun(anActor);
00075         }
00076         return theFun;
00077       }
00078   
00083     template<typename TActor, typename TPredicate, typename TFunction>
00084       TFunction ForEachIf(vtkActorCollection *theCollection, 
00085                           TPredicate thePredicate,
00086                           TFunction theFun)
00087       {
00088         if(theCollection){
00089           theCollection->InitTraversal();
00090           while(vtkActor *anAct = theCollection->GetNextActor())
00091             if(TActor *anActor = dynamic_cast<TActor*>(anAct))
00092               if(thePredicate(anActor))
00093                 theFun(anActor);
00094         }
00095         return theFun;
00096       }
00097   
00102     template<typename TActor, typename TPredicate>
00103       TActor* Find(vtkActorCollection *theCollection, TPredicate thePredicate)
00104       {
00105         if(theCollection){
00106           theCollection->InitTraversal();
00107           while(vtkActor *anAct = theCollection->GetNextActor())
00108             if(TActor *anActor = dynamic_cast<TActor*>(anAct))
00109               if(thePredicate(anActor))
00110                 return anActor;
00111         }
00112         return NULL;
00113       }
00114 
00115 }
00116 
00117 #endif