comparison framework/SVFileReader.cpp @ 451:dc1a360f2b69

Allow layers to be loaded without models if their layer class explicitly says it's OK (otherwise default template won't load, as it has an empty waveform layer)

 		Model *model = m_models[modelId];
 		m_document->setModel(layer, model);
 	    } else {
 		cerr << "WARNING: SV-XML: Unknown model id " << modelId
 			  << " in layer definition" << endl;
-
-                // Don't add a layer with an unknown model id
-                m_document->deleteLayer(layer);
-                m_layers[id] = layer = 0;
-                return false;
-	    }
+                if (!layer->canExistWithoutModel()) {
+                    // Don't add a layer with an unknown model id
+                    // unless it explicitly supports this state
+                    m_document->deleteLayer(layer);
+                    m_layers[id] = layer = 0;
+                    return false;
+                }
+            }
 	}
 
         if (layer) layer->setProperties(attributes);
     }