class Axis_group_engraver : public Engraver
{
protected:
+ bool active_;
Spanner *staffline_;
SCM interesting_;
vector<Grob *> elts_;
void process_music ();
+ virtual void initialize ();
virtual void finalize ();
DECLARE_ACKNOWLEDGER (grob);
void process_acknowledged ();
{
staffline_ = 0;
interesting_ = SCM_EOL;
+ active_ = false;
+}
+
+void
+Axis_group_engraver::initialize ()
+{
+ active_ = !to_boolean (get_property ("hasAxisGroup"));
+ if (active_)
+ context ()->set_property ("hasAxisGroup", SCM_BOOL_T);
}
void
void
Axis_group_engraver::process_music ()
{
- if (!staffline_)
+ if (!staffline_ && active_)
{
staffline_ = get_spanner ();
Grob *it = unsmob_grob (get_property ("currentCommandColumn"));
void
Axis_group_engraver::acknowledge_grob (Grob_info i)
{
- elts_.push_back (i.grob ());
+ if (staffline_)
+ elts_.push_back (i.grob ());
if (staffline_ && to_boolean(staffline_->get_property("remove-empty")))
{
/* read */
"currentCommandColumn "
- "keepAliveInterfaces ",
-
+ "keepAliveInterfaces "
+ "hasAxisGroup ",
+
/* write */
- ""
+ "hasAxisGroup "
);