source file of the GNU LilyPond music typesetter
- (c) 1996--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1996--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "system.hh"
#include "all-font-metrics.hh"
#include "axis-group-interface.hh"
#include "grob-array.hh"
+#include "hara-kiri-group-spanner.hh"
#include "international.hh"
#include "lookup.hh"
#include "main.hh"
#include "output-def.hh"
+#include "page-layout-problem.hh"
#include "paper-column.hh"
#include "paper-score.hh"
#include "paper-system.hh"
{
System *child = dynamic_cast<System*> (broken_intos_[i]);
child->all_elements_->remove_duplicates ();
+ for (vsize j = 0; j < child->all_elements_->size (); j++)
+ {
+ Grob *g = child->all_elements_->grob (j);
+
+ (void) g->get_property ("after-line-breaking");
+ }
}
if (be_verbose_global)
- message (_f ("Element count %d.", count + element_count ()));
+ message (_f ("Element count %d", count + element_count ()) + "\n");
}
SCM
void
System::post_processing ()
{
- for (vsize i = 0; i < all_elements_->size (); i++)
- {
- Grob *g = all_elements_->grob (i);
-
- (void) g->get_property ("after-line-breaking");
- }
-
Interval iv (extent (this, Y_AXIS));
if (iv.is_empty ())
programming_error ("system with empty extent");
Interval staff_refpoints;
extract_grob_set (this, "spaceable-staves", staves);
for (vsize i = 0; i < staves.size (); i++)
- staff_refpoints.add_point (staves[i]->relative_coordinate (this, Y_AXIS));
+ if (staves[i]->is_live ())
+ staff_refpoints.add_point (staves[i]->relative_coordinate (this, Y_AXIS));
pl->set_property ("staff-refpoint-extent", ly_interval2scm (staff_refpoints));
pl->set_property ("system-grob", this->self_scm ());
return dynamic_cast<System*> (system_grob);
}
+Grob *
+System::get_vertical_alignment ()
+{
+ extract_grob_set (this, "elements", elts);
+ Grob *ret = 0;
+ for (vsize i = 0; i < elts.size (); i++)
+ if (Align_interface::has_interface (elts[i]))
+ {
+ if (ret)
+ programming_error ("found multiple vertical alignments in this system");
+ ret = elts[i];
+ }
+
+ if (!ret)
+ programming_error ("didn't find a vertical alignment in this system");
+ return ret;
+}
+
+// Finds the furthest staff in the given direction whose x-extent
+// overlaps with the given interval.
+Grob *
+System::get_extremal_staff (Direction dir, Interval const &iv)
+{
+ Grob *align = get_vertical_alignment ();
+ if (!align)
+ return 0;
+
+ extract_grob_set (align, "elements", elts);
+ vsize start = (dir == UP) ? 0 : elts.size () - 1;
+ vsize end = (dir == UP) ? elts.size () : VPOS;
+ for (vsize i = start; i != end; i += dir)
+ {
+ if (Hara_kiri_group_spanner::has_interface (elts[i]))
+ Hara_kiri_group_spanner::consider_suicide (elts[i]);
+
+ Interval intersection = elts[i]->extent (this, X_AXIS);
+ intersection.intersect (iv);
+ if (elts[i]->is_live () && !intersection.is_empty ())
+ return elts[i];
+ }
+ return 0;
+}
+
ADD_INTERFACE (System,
"This is the top-level object: Each object in a score"
" ultimately has a @code{System} object as its X and"