ENH: ViewerManager add assert

ViewerManager/Model/otbImageViewerManagerModel.cxx

@@ -115,6 +115,16 @@ ImageViewerManagerModel
   currentComponent.pPixelModel  = pixelModel;
   currentComponent.pCurveWidget = curveWidget;
 
+  assert(currentComponent.pLayer);
+  assert(currentComponent.pReader);
+  assert(currentComponent.pRendering);
+  assert(currentComponent.pVisuView);
+  assert(currentComponent.pWidgetController);
+  assert(currentComponent.pRenderFuntion);
+  assert(currentComponent.pPixelView);
+  assert(currentComponent.pPixelModel);
+  assert(currentComponent.pCurveWidget);
+
   /** Add the the struct in the list*/
   m_ObjectTrackedList.push_back(currentComponent);
 

ViewerManager/View/otbImageViewerManagerViewGUI.cxx

@@ -811,6 +811,7 @@ ImageViewerManagerViewGUI
    unsigned int nbComponent = reader->GetOutput()->GetNumberOfComponentsPerPixel();
 
    //FIXME make sure this is called only when the renderingFunction is a StandardRenderingFunctionType
+   assert(m_ImageViewerManagerModel->GetObjectList().at(selectedItem-1).pRenderFuntion.GetPointer());
    StandardRenderingFunctionType::Pointer renderingFunction = static_cast<StandardRenderingFunctionType*>(m_ImageViewerManagerModel->GetObjectList().at(selectedItem-1).pRenderFuntion.GetPointer());
 
    guiViewerSetupColorMode->set();