ui: display exposure/gain settings

src/main.c

@@ -165,6 +165,12 @@ update_io_pipeline()
         mp_io_pipeline_update_state(&new_state);
 }
 
+void
+notify_auto_status(gchar *msg)
+{
+	gtk_button_set_label(GTK_BUTTON(status_button), msg);
+}
+
 /*
  * State transfer from Process -> Main
  */
@@ -236,7 +242,6 @@ update_state(const mp_state_main *new_state)
         // as flash, so always enable this button
         gtk_widget_set_visible(flash_button, true);
         gtk_widget_set_visible(status_button, true);
-        gtk_button_set_label(GTK_BUTTON(status_button), "(st)");
 
         return false;
 }