#include <SALOME_InteractiveObject.hxx>
#include <SVTK_Prs.h>
+#include <vtkActorCollection.h>
class vtkMapper;
+template <class ActorType> ActorType* getActor(SVTK_Prs* thePrs);
+
+/**
+ * Get a VTK actor of the given presentation. Create a new one if there is no actor yet.
+ */
+template <class ActorType>
+ActorType* getActor(SVTK_Prs* thePrs)
+{
+ ActorType* anActor = 0;
+ vtkActorCollection* aContent = thePrs->GetObjects();
+ if ( aContent )
+ {
+ // Remove old actor because of the problem of GEOM_Actor updating.
+ //anActor = dynamic_cast<ActorType*>( aContent->GetLastActor() );
+ aContent->RemoveAllItems();
+ }
+ if ( !anActor )
+ {
+ anActor = ActorType::New();
+ thePrs->AddObject( anActor );
+ anActor->Delete();
+ }
+ return anActor;
+}
+
+
/*
Class : HYDROGUI_VTKPrs
Description : Base class for all HYDRO presentation in VTK viewer
