Fix for the bug #255: VTK viewer is not updated after modification of objects.

[modules/hydro.git] / src / HYDROGUI / HYDROGUI_VTKPrs.h

diff --git a/src/HYDROGUI/HYDROGUI_VTKPrs.h b/src/HYDROGUI/HYDROGUI_VTKPrs.h
index d6a8b206e7cd585a9ef3ee5bcb1cd3f20ea10d65..f5a3f86fc8db2ebd2c3cd004d6e0b801c0ffae3d 100644 (file)
--- a/src/HYDROGUI/HYDROGUI_VTKPrs.h
+++ b/src/HYDROGUI/HYDROGUI_VTKPrs.h
@@ -28,9 +28,36 @@
 
 #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
@@ -42,6 +69,7 @@ public:
   virtual ~HYDROGUI_VTKPrs();
 
   virtual void                     compute();
+  virtual bool                     needScalarBar() { return false; }
 
   static double InvalidZValue() { return HYDROData_AltitudeObject::GetInvalidAltitude(); }