- GtkStateType (*get_button_state)(const GSheetColumn *geo, gint col, gpointer data);
- gchar * (*get_button_label)(const GSheetColumn *geo, gint col, gpointer data);
- gboolean (*get_button_visibility)(const GSheetColumn *geo,
- gint col, gpointer data);
- const GtkSheetChild * (*get_button_child)(const GSheetColumn *geo,
- gint col, gpointer data);
- GtkJustification * (*get_button_justification)(const GSheetColumn *geo,
- gint col, gpointer data);
+ GtkStateType (*get_button_state)(const GSheetColumn *geo, gint col);
+ gchar * (*get_button_label)(const GSheetColumn *geo, gint col);
+ gchar * (*get_subtitle)(const GSheetColumn *geo, gint col);
+
+ gboolean (*get_button_visibility)(const GSheetColumn *geo,
+ gint col);
+ const GtkSheetChild * (*get_button_child)(const GSheetColumn *geo,
+ gint col);
+ GtkJustification * (*get_button_justification)(const GSheetColumn *geo,
+ gint col);