/*
- single-malt-grouping-item.cc -- implement Separation_item
+ separation-item.cc -- implement Separation_item
source file of the GNU LilyPond music typesetter
#include "separation-item.hh"
#include "paper-column.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "group-interface.hh"
-
-bool
-Separation_item::has_interface (Grob *g)
-{
- return g->has_interface (ly_symbol2scm ("separation-item-interface"));
-}
+#include "accidental-placement.hh"
void
Separation_item::add_item (Grob*s,Item* i)
s->add_dependency (i);
}
+void
+Separation_item::add_conditional_item (Grob* me , Grob *e)
+{
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("conditional-elements"), e);
+}
+
+Interval
+Separation_item::conditional_width (Grob * me, Grob * left)
+{
+ Interval w = width (me);
+
+ Item *item = dynamic_cast<Item*> (me);
+ Paper_column * pc = item->column_l ();
+
+
+ for (SCM s = me->get_grob_property ("conditional-elements"); gh_pair_p (s); s = ly_cdr (s))
+ {
+ SCM elt = ly_car (s);
+ if (!unsmob_grob (elt))
+ continue;
+
+ Item *il = unsmob_item (elt);
+ if (pc != il->column_l ())
+ {
+ /* this shouldn't happen, but let's continue anyway. */
+ programming_error (_ ("Separation_item: I've been drinking too much"));
+ continue; /*UGH UGH*/
+ }
+
+ if (to_boolean (il->get_grob_property ("no-spacing-rods")))
+ {
+ continue;
+ }
+
+ if (Accidental_placement::has_interface (il))
+ {
+ w.unite (Accidental_placement::get_relevant_accidental_extent (il, pc, left));
+ }
+ }
+
+ SCM pad = me->get_grob_property ("padding");
+
+ if (gh_number_p (pad))
+ {
+ w[RIGHT] += gh_scm2double (pad)/2;
+ w[LEFT] -= gh_scm2double (pad)/2;
+ }
+ return w;
+}
+
Interval
-Separation_item::my_width (Grob *me)
+Separation_item::width (Grob *me)
{
+ SCM sw = me->get_grob_property ("extent-X");
+ if (ly_number_pair_p (sw))
+ {
+ return ly_scm2interval (sw);
+ }
+
Item *item = dynamic_cast<Item*> (me);
Paper_column * pc = item->column_l ();
Interval w;
w[RIGHT] += gh_scm2double (pad)/2;
w[LEFT] -= gh_scm2double (pad)/2;
}
+
+
+ me->set_grob_property ("extent-X", ly_interval2scm (w));
+
return w;
// add this->offset_ ? this-> relative_coordinate ()?
+
+
+ADD_INTERFACE (Separation_item,"separation-item-interface",
+ "Item that computes widths to generate spacing rods.
+
+Calc dimensions for the Separating_group_spanner; this has to be
+an item to get dependencies correct. It can't be an grob_group
+since these usually are in a different X_group
+",
+ "extent-X conditional-elements elements");