-/*
- axis-group-engraver.cc -- implement Axis_group_engraver
-
+/*
+ axis-group-engraver.cc -- implement Axis_group_engraver
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- */
+
+ (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
#include "axis-group-engraver.hh"
-#include "axis-group-spanner.hh"
-#include "paper-column.hh"
+
+#include "spanner.hh"
#include "axis-group-interface.hh"
+#include "warn.hh"
+#include "context.hh"
+
+#include "translator.icc"
Axis_group_engraver::Axis_group_engraver ()
{
- staffline_p_ = 0;
+ must_be_last_ = true;
+ staffline_ = 0;
}
void
-Axis_group_engraver::do_creation_processing ()
+Axis_group_engraver::process_music ()
{
- staffline_p_ = get_spanner_p ();
- axis_group (staffline_p_).set_axes (Y_AXIS, Y_AXIS);
- staffline_p_->set_bound(LEFT,get_staff_info().command_pcol_l ());
- announce_element (Score_element_info (staffline_p_, 0));
+ if (!staffline_)
+ {
+ staffline_ = get_spanner ();
+ Grob *it = unsmob_grob (get_property ("currentCommandColumn"));
+ staffline_->set_bound (LEFT, it);
+ }
}
-Axis_group_spanner*
-Axis_group_engraver::get_spanner_p () const
+Spanner *
+Axis_group_engraver::get_spanner ()
{
- return new Axis_group_spanner;
+ return make_spanner ("VerticalAxisGroup", SCM_EOL);
}
+
+/*
+ TODO: should we junk minimumVerticalExtent/extraVerticalExtent ?
+*/
+
void
-Axis_group_engraver::do_removal_processing ()
+Axis_group_engraver::finalize ()
{
- staffline_p_->set_bound(RIGHT,get_staff_info().command_pcol_l ());
- typeset_element (staffline_p_);
- staffline_p_ = 0;
+ if (staffline_)
+ {
+ Grob *it = unsmob_grob (get_property ("currentCommandColumn"));
+ staffline_->set_bound (RIGHT, it);
+ }
}
void
-Axis_group_engraver::acknowledge_element (Score_element_info i)
+Axis_group_engraver::acknowledge_grob (Grob_info i)
{
- elts_.push (i.elem_l_);
+ elts_.push (i.grob ());
}
+/*
+ maybe should check if our parent is set, because we now get a
+ cyclic parent relationship if we have two Axis_group_engravers in
+ the context. */
void
Axis_group_engraver::process_acknowledged ()
{
- /* UGH UGH UGH */
- for (int i=0; i < elts_.size (); i++)
+ if (!staffline_)
+ return;
+
+ for (int i = 0; i < elts_.size (); i++)
{
- Score_element *par = elts_[i]->parent_l (Y_AXIS);
- if (!par || !axis_group (par).has_interface_b ())
- axis_group (staffline_p_).add_element (elts_[i]);
+ if (!unsmob_grob (elts_[i]->get_object ("axis-group-parent-Y")))
+ {
+ if (staffline_->get_parent (Y_AXIS)
+ && staffline_->get_parent (Y_AXIS) == elts_[i])
+ {
+ staffline_->warning (_ ("Axis_group_engraver: vertical group already has a parent"));
+ staffline_->warning (_ ("are there two Axis_group_engravers?"));
+ staffline_->warning (_ ("removing this vertical group"));
+ staffline_->suicide ();
+ staffline_ = 0;
+ break;
+ }
+ add_element (elts_[i]);
+ }
}
elts_.clear ();
}
-ADD_THIS_TRANSLATOR(Axis_group_engraver);
+void
+Axis_group_engraver::add_element (Grob *e)
+{
+ Axis_group_interface::add_element (staffline_, e);
+}
+
+ADD_ACKNOWLEDGER (Axis_group_engraver, grob);
+
+ADD_TRANSLATOR (Axis_group_engraver,
+ /* doc */ "Group all objects created in this context in a VerticalAxisGroup spanner.",
+ /* create */ "VerticalAxisGroup",
+ /* accept */ "",
+ /* read */ "verticalExtent minimumVerticalExtent extraVerticalExtent",
+ /* write */ "");