X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=lib%2FcpExtensions%2FInteraction%2FSeedWidget.cxx;h=73d13a5b1853320d213bd374f276933946856994;hb=e2fb8817731f6231d34941a208e46b36dad425b2;hp=3460532ba22cbcec8231cdc626de53d370fd18e3;hpb=fdd4f2cec18107de380ebd350cb1019eed7c294c;p=cpPlugins.git

diff --git a/lib/cpExtensions/Interaction/SeedWidget.cxx b/lib/cpExtensions/Interaction/SeedWidget.cxx
index 3460532..73d13a5 100644
--- a/lib/cpExtensions/Interaction/SeedWidget.cxx
+++ b/lib/cpExtensions/Interaction/SeedWidget.cxx
@@ -20,11 +20,16 @@ void cpExtensions::Interaction::SeedWidget::
 SetInteractor( vtkRenderWindowInteractor* rwi )
 {
   this->Superclass::SetInteractor( rwi );
-  TBaseStyle* s = dynamic_cast< TBaseStyle*>( rwi->GetInteractorStyle( ) );
-  if( s != NULL )
+  if( rwi != NULL )
   {
-    s->AddMouseClickCommand( Self::_Click, this );
-    s->AddMouseDoubleClickCommand( Self::_DoubleClick, this );
+    TBaseStyle* s =
+      dynamic_cast< TBaseStyle* >( rwi->GetInteractorStyle( ) );
+    if( s != NULL )
+    {
+      s->AddMouseClickCommand( Self::_Click, this );
+      s->AddMouseDoubleClickCommand( Self::_DoubleClick, this );
+
+    } // fi
 
   } // fi
 }
@@ -55,6 +60,8 @@ _Click(
   )
 {
   SeedWidget* self = reinterpret_cast< SeedWidget* >( data );
+  if( self == NULL )
+    return;
   if( self->WidgetState == vtkSeedWidget::MovingSeed )
     return;