# HG changeset patch
# User Chris Cannam
# Date 1391016728 0
# Node ID a2689db084f49daf0dcac1bea13d33c51f600266
# Parent  b109b88bfa8509daa33859444544c06ccfd52447
Add a callback for no models as well (so we know something has completed and can e.g. delete the handler)

diff -r b109b88bfa85 -r a2689db084f4 transform/ModelTransformerFactory.cpp
--- a/transform/ModelTransformerFactory.cpp	Wed Jan 29 15:58:15 2014 +0000
+++ b/transform/ModelTransformerFactory.cpp	Wed Jan 29 17:32:08 2014 +0000
@@ -280,6 +280,8 @@
         if (transformer->willHaveAdditionalOutputModels()) {
             vector<Model *> mm = transformer->detachAdditionalOutputModels();
             m_handlers[transformer]->moreModelsAvailable(mm);
+        } else {
+            m_handlers[transformer]->noMoreModelsAvailable();
         }
         m_handlers.erase(transformer);
     }
diff -r b109b88bfa85 -r a2689db084f4 transform/ModelTransformerFactory.h
--- a/transform/ModelTransformerFactory.h	Wed Jan 29 15:58:15 2014 +0000
+++ b/transform/ModelTransformerFactory.h	Wed Jan 29 17:32:08 2014 +0000
@@ -73,7 +73,11 @@
 
     class AdditionalModelHandler {
     public:
+        virtual ~AdditionalModelHandler() { }
+
+        // Exactly one of these functions will be called
         virtual void moreModelsAvailable(std::vector<Model *> models) = 0;
+        virtual void noMoreModelsAvailable() = 0;
     };
     
     /**