+gboolean timespan_changed(void * hook_data, void * call_data)
+{
+ EventViewerData *event_viewer_data = (EventViewerData*) hook_data;
+ LttvTracesetContext * tsc =
+ lttvwindow_get_traceset_context(event_viewer_data->tab);
+ TimeInterval time_span = tsc->time_span;
+
+ LttTime end;
+
+ end = ltt_time_sub(time_span.end_time, time_span.start_time);
+ event_viewer_data->vadjust_c->upper = ltt_time_to_double(end);