GUI: Refuse to open "Index all frames" without a geometry filename

Fixes: https://gitlab.desy.de/thomas.white/crystfel/-/issues/73

1 files changed, 7 insertions, 0 deletions

diff --git a/src/gui_index.c b/src/gui_index.c
index 2634f525..b629c751 100644
--- a/src/gui_index.c
+++ b/src/gui_index.c
@@ -408,6 +408,13 @@ gint index_all_sig(GtkWidget *widget, struct crystfelproject *proj)
 
 	if ( proj->indexing_opts != NULL ) return FALSE;
 
+	if ( proj->geom_filename == NULL ) {
+		error_box(proj, "No geometry file was selected.  "
+		"You must select a geometry file via 'Load data' before using "
+		"this function");
+		return FALSE;
+	}
+
 	njp = malloc(sizeof(struct new_index_job_params));
 	if ( njp == NULL ) return FALSE;