source file of the GNU LilyPond music typesetter
- (c) 1998--2002 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "axis-group-interface.hh"
#include "spanner.hh"
#include "hara-kiri-group-spanner.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "item.hh"
Hara_kiri_group_spanner::y_extent (SCM element_smob, SCM scm_axis)
{
Grob *me = unsmob_grob (element_smob);
- Axis a = (Axis) gh_scm2int (scm_axis);
+ Axis a = (Axis) ly_scm2int (scm_axis);
assert (a == Y_AXIS);
consider_suicide (me);
void
Hara_kiri_group_spanner::consider_suicide (Grob*me)
{
- SCM worth = me->get_grob_property ("items-worth-living");
- if (gh_pair_p (worth))
+ Spanner*sp = dynamic_cast<Spanner*> (me);
+ SCM worth = me->get_property ("items-worth-living");
+ if (ly_c_pair_p (worth))
return ;
+ if (!to_boolean (me->get_property ("remove-first"))
+ && broken_spanner_index (sp) == 0)
+ {
+ return ;
+ }
+
Link_array<Grob> childs = Axis_group_interface::get_children (me);
for (int i = 0; i < childs.size (); i++)
childs[i]->suicide ();
Hara_kiri_group_spanner::force_hara_kiri_callback (SCM element_smob, SCM axis)
{
Grob *me = unsmob_grob (element_smob);
- Axis a = (Axis) gh_scm2int (axis);
+ Axis a = (Axis) ly_scm2int (axis);
assert (a == Y_AXIS);
consider_suicide (me);
- return gh_double2scm (0.0);
+ return scm_make_real (0.0);
}
Hara_kiri_group_spanner::force_hara_kiri_in_parent_callback (SCM element_smob, SCM axis)
{
Grob *daughter = unsmob_grob (element_smob);
- Axis a = (Axis) gh_scm2int (axis);
+ Axis a = (Axis) ly_scm2int (axis);
assert (a == Y_AXIS);
force_hara_kiri_callback (daughter->get_parent (a)->self_scm (), axis);
- return gh_double2scm (0.0);
+ return scm_make_real (0.0);
}
void
ADD_INTERFACE (Hara_kiri_group_spanner,"hara-kiri-group-interface",
- " As Vertical_group_spanner, but keep track of interesting items. If
-we don't contain any interesting items after linebreaking, then
-gracefully commit suicide. Objective: don't disgrace Lily by
-typesetting empty lines in orchestral scores.",
- "items-worth-living");
+ "A group spanner that keeps track of interesting items. If it "
+ "doesn't contain any after linebreaking, then it "
+ "will remove itself and all its children."
+ ,
+ "items-worth-living remove-first");