-/*
- tie-column.cc -- implement Tie_column
-
+/*
+ tie-column.cc -- implement Tie_column
+
source file of the GNU LilyPond music typesetter
-
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 2000--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
#include "tie-column.hh"
-#include "group-interface.hh"
+
+#include <cmath>
+
+#include "output-def.hh"
+#include "skyline.hh"
+#include "warn.hh"
+#include "paper-column.hh"
+#include "spanner.hh"
+#include "pointer-group-interface.hh"
#include "tie.hh"
#include "directional-element-interface.hh"
-#include "note-head.hh"
+#include "tie-column-format.hh"
+#include "tie-formatting-problem.hh"
+#include "tie-configuration.hh"
-Tie_column::Tie_column ()
-{
- set_elt_property ("ties", SCM_EOL);
- set_extent_callback (0, X_AXIS);
- set_extent_callback (0, Y_AXIS);
- set_elt_property ("transparent", SCM_BOOL_T);
-}
+using namespace std;
void
-Tie_column::add_tie (Tie *s)
+Tie_column::add_tie (Grob *tc, Grob *tie)
{
- Group_interface g (this, "ties");
- if (!g.count ())
+ Spanner *me = dynamic_cast<Spanner *> (tc);
+
+ if (tie->get_parent (Y_AXIS)
+ && Tie_column::has_interface (tie->get_parent (Y_AXIS)))
+ return;
+
+ if (!me->get_bound (LEFT)
+ || (Paper_column::get_rank (me->get_bound (LEFT)->get_column ())
+ > Paper_column::get_rank (dynamic_cast<Spanner*> (tie)->get_bound (LEFT)->get_column ())))
{
- set_bound (LEFT, s->head (LEFT));
- set_bound (RIGHT, s->head (RIGHT));
+ me->set_bound (LEFT, Tie::head (tie, LEFT));
+ me->set_bound (RIGHT, Tie::head (tie, RIGHT));
}
-
- group (this, "ties").add_element (s);
- s->add_dependency (this);
+
+ tie->set_parent (me, Y_AXIS);
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), tie);
}
-
-int
-tie_compare (Tie* const & s1,
- Tie* const & s2)
+/*
+ Extend the spanner over its Tie constituents.
+*/
+MAKE_SCHEME_CALLBACK (Tie_column, before_line_breaking, 1);
+SCM
+Tie_column::before_line_breaking (SCM smob)
{
- return sign (s1->position_f () - s2->position_f());
+ Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (smob));
+ for (SCM s = me->get_property ("ties"); scm_is_pair (s); s = scm_cdr (s))
+ {
+ Spanner *tie = dynamic_cast<Spanner *> (unsmob_grob (scm_car (s)));
+ Direction dir = LEFT;
+ do
+ {
+ if (dir * tie->get_bound (dir)->get_column ()->get_rank ()
+ > dir * me->get_bound (dir)->get_column ()->get_rank ())
+ me->set_bound (dir, Tie::head (tie, dir));
+ }
+ while (flip (&dir) != LEFT);
+ }
+
+ return SCM_UNSPECIFIED;
}
-/*
- See [Ross p. 138].
+MAKE_SCHEME_CALLBACK(Tie_column, calc_positioning_done, 1)
+SCM
+Tie_column::calc_positioning_done (SCM smob)
+{
+ Grob *me = unsmob_grob (smob);
+ extract_grob_set (me, "ties", ro_ties);
+ vector<Grob*> ties (ro_ties);
+ if (!ties.size ())
+ return SCM_BOOL_T;
+ if (ties.size() == 1)
+ {
+ /*
+ Already handled by standard mechanisms.
+ */
+ return SCM_BOOL_T;
+ }
+
+ vector_sort (ties, Tie::less);
- In normal chord cases, the outer ties point outwards, and the
- direction of the rest is determined by their staff position.
+ Tie_formatting_problem problem;
+ problem.from_ties (ties);
- Ross forgets about the tie that is *on* the middle staff line. We
- assume it goes UP. (TODO: make this settable) */
-void
-Tie_column::set_directions ()
-{
- Link_array<Tie> s =
- Group_interface__extract_elements (this, (Tie*)0, "ties");
+ SCM manual_configs = me->get_property ("tie-configuration");
+ problem.set_manual_tie_configuration (manual_configs);
- Direction d = directional_element (this).get ();
+ Ties_configuration base = problem.generate_optimal_chord_configuration ();
- if (d)
+ for (vsize i = 0; i < base.size(); i++)
{
- for (int i = s.size (); i--;)
- directional_element (s[i]).set (d);
- return;
- }
-
- if (s.size () == 1)
- {
- directional_element (s[0]).set (s[0]->get_default_dir ());
- return;
- }
-
- s.sort (tie_compare);
- directional_element (s[0]).set (DOWN);
- s.del (0);
- directional_element (s.pop ()).set (UP);
+ SCM cp = Tie::get_control_points (ties[i], problem.common_x_refpoint (),
+ base[i],
+ problem.details_);
- for (int i=s.size(); i--; )
- {
- Real p = s[i]->position_f ();
- Direction d = (Direction) sign (p);
- if (!d)
- d = UP;
+ ties[i]->set_property ("control-points", cp);
+ set_grob_direction (ties[i],
+ base[i].dir_);
+
+#if DEBUG_TIE_SCORING
+ if (to_boolean (me->layout ()
+ ->lookup_variable (ly_symbol2scm ("debug-tie-scoring"))))
+ {
+ string card = to_string ("%d (%.2f): ", base[i].position_, base[i].delta_y_)
+ + base[i].card () + base.tie_card (i);
- directional_element (s[i]).set (d);
+
+ if (i == 0)
+ card += base.card ();
+ if (i == base.size () - 1)
+ card += to_string ("TOTAL=%.2f", base.score ());
+
+ ties[i]->set_property ("quant-score",
+ ly_string2scm (card));
+ }
+#endif
+
}
-
+ return SCM_BOOL_T;
}
-void
-Tie_column::after_line_breaking ()
-{
- set_directions ();
-}
+
+
+ADD_INTERFACE (Tie_column,
+ "Object that sets directions of multiple ties in a tied chord",
+
+ /* properties */
+ "positioning-done "
+ "tie-configuration "
+ );
+