+ /* Data sheet tab. */
+ GtkWidget *vbox; /* Top-level widget in tab. */
+ GtkWidget *cell_ref_label; /* GtkLabel that shows selected case and var. */
+ GtkWidget *datum_entry; /* GtkComboBoxEntry for editing current cell. */
+ GtkWidget *datasheet_vbox_widget; /* ->vbox child that holds data sheets. */
+ GtkWidget *data_sheets[4]; /* Normally one data sheet; four, if split. */
+ gboolean split; /* True if data sheets are split. */
+
+ /* UI manager for whichever var or data sheet is currently in use. */
+ GtkUIManager *ui_manager;
+ GtkWidget *old_vbox_widget;