X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FVTKViewer%2FVTKViewer_Algorithm.h;h=aba1ad5a6356c0cca985e9df909361371d6b05ef;hb=refs%2Fheads%2Fngr%2Fpython3_dev_pv5.4;hp=fefcb3a8a3cdf7293ee3467453277b2412647e0e;hpb=1c889394b028b786898a995d38c07c8f3d564837;p=modules%2Fgui.git

diff --git a/src/VTKViewer/VTKViewer_Algorithm.h b/src/VTKViewer/VTKViewer_Algorithm.h
index fefcb3a8a..aba1ad5a6 100644
--- a/src/VTKViewer/VTKViewer_Algorithm.h
+++ b/src/VTKViewer/VTKViewer_Algorithm.h
@@ -1,52 +1,79 @@
-//  Copyright (C) 2007-2008  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
 //
-//  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-//  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
 //
-//  This library is free software; you can redistribute it and/or
-//  modify it under the terms of the GNU Lesser General Public
-//  License as published by the Free Software Foundation; either
-//  version 2.1 of the License.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
 //
-//  This library is distributed in the hope that it will be useful,
-//  but WITHOUT ANY WARRANTY; without even the implied warranty of
-//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-//  Lesser General Public License for more details.
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
 //
-//  You should have received a copy of the GNU Lesser General Public
-//  License along with this library; if not, write to the Free Software
-//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 //
-//  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
 //
+
 //  SALOME VTKViewer : build VTK viewer into Salome desktop
 //  File   : VTKViewer_ViewFrame.h
 //  Author : Nicolas REJNERI
-//  Module : SALOME
-//  $Header$
-//
+
 #ifndef VTKViewer_Algorithm_H
 #define VTKViewer_Algorithm_H
 
+#include "VTKViewer.h"
+
 #include <vtkActorCollection.h>
 
 class vtkActor;
 
 namespace VTK
 {
+  /*!
+   * This object should be used to avoid problems with recurring calls of GetActors() method of the vtkRenderer class.
+   *
+   * Instead of the following instructions:
+   *
+   * vtkRenderer* aRenderer = ...;
+   * vtkActorCollection* anActorCollection = aRenderer->GetActors();
+   * DoSomething( anActorCollection ); // where GetActors() could be called again
+   *
+   * A code like the following should be used:
+   *
+   * vtkRenderer* aRenderer = ...;
+   * vtkActorCollection* anActorCollection = aRenderer->GetActors();
+   * ActorCollectionCopy aCopy( anActorCollection );
+   * DoSomething( aCopy.GetActors() );
+   */
+  struct VTKVIEWER_EXPORT ActorCollectionCopy
+  {
+    vtkActorCollection* myActorCollection;
+
+    ActorCollectionCopy( vtkActorCollection* theActorCollection );
+    ~ActorCollectionCopy();
+
+    vtkActorCollection* GetActors() const;
+  };
+
   /*!For each actor(for ex: someActor) from \a theCollection(that can be dynamic cast to type TActor)\n
    * Call method \a theFun(someActor)
    */
     template<typename TActor, typename TFunction>
       TFunction ForEach(vtkActorCollection *theCollection, TFunction theFun)
       {
-	if(theCollection){
-	  theCollection->InitTraversal();
-	  while(vtkActor *anAct = theCollection->GetNextActor())
-	    if(TActor *anActor = dynamic_cast<TActor*>(anAct))
-	      theFun(anActor);
-	}
-	return theFun;
+        if(theCollection){
+          theCollection->InitTraversal();
+          while(vtkActor *anAct = theCollection->GetNextActor())
+            if(TActor *anActor = dynamic_cast<TActor*>(anAct))
+              theFun(anActor);
+        }
+        return theFun;
       }
   
     /*!For each actor(for ex: someActor) from \a theCollection(that can be dynamic cast to type TActor and \n
@@ -55,17 +82,17 @@ namespace VTK
      */
     template<typename TActor, typename TPredicate, typename TFunction>
       TFunction ForEachIf(vtkActorCollection *theCollection, 
-			  TPredicate thePredicate,
-			  TFunction theFun)
+                          TPredicate thePredicate,
+                          TFunction theFun)
       {
-	if(theCollection){
-	  theCollection->InitTraversal();
-	  while(vtkActor *anAct = theCollection->GetNextActor())
-	    if(TActor *anActor = dynamic_cast<TActor*>(anAct))
-	      if(thePredicate(anActor))
-		theFun(anActor);
-	}
-	return theFun;
+        if(theCollection){
+          theCollection->InitTraversal();
+          while(vtkActor *anAct = theCollection->GetNextActor())
+            if(TActor *anActor = dynamic_cast<TActor*>(anAct))
+              if(thePredicate(anActor))
+                theFun(anActor);
+        }
+        return theFun;
       }
   
     /*!Find actor from collection, that can be dynamicaly cast to \a TActor, \n
@@ -75,14 +102,14 @@ namespace VTK
     template<typename TActor, typename TPredicate>
       TActor* Find(vtkActorCollection *theCollection, TPredicate thePredicate)
       {
-	if(theCollection){
-	  theCollection->InitTraversal();
-	  while(vtkActor *anAct = theCollection->GetNextActor())
-	    if(TActor *anActor = dynamic_cast<TActor*>(anAct))
-	      if(thePredicate(anActor))
-		return anActor;
-	}
-	return NULL;
+        if(theCollection){
+          theCollection->InitTraversal();
+          while(vtkActor *anAct = theCollection->GetNextActor())
+            if(TActor *anActor = dynamic_cast<TActor*>(anAct))
+              if(thePredicate(anActor))
+                return anActor;
+        }
+        return NULL;
       }
 
 }