Fix crash on exit

Since the snapping widget is destroyed *after* the project instance, we need to avoid referring to the project after it's deleted.
qgis · Jan 23, 2018 · c50cbfc · c50cbfc
1 parent 7ef9355
commit c50cbfc
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/app/qgssnappingwidget.cpp b/src/app/qgssnappingwidget.cpp
@@ -78,6 +78,10 @@ QgsSnappingWidget::QgsSnappingWidget( QgsProject *project, QgsMapCanvas *canvas,
   {
     model->resetLayerTreeModel();
   } );
+  connect( mProject, &QObject::destroyed, this, [ = ]
+  {
+    mLayerTreeView->setModel( nullptr );
+  } );
   // model->setFlags( 0 );
   mLayerTreeView->setModel( model );
   mLayerTreeView->resizeColumnToContents( 0 );