-/*
- tie-column.cc -- implement Tie_column
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2000--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+/*
+ tie-column.cc -- implement Tie_column
-#include "spanner.hh"
-#include "tie-column.hh"
-#include "group-interface.hh"
-#include "tie.hh"
-#include "directional-element-interface.hh"
-#include "rhythmic-head.hh"
+ source file of the GNU LilyPond music typesetter
+ (c) 2000--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+#include "tie-column.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 "tie-column-format.hh"
+#include "tie-formatting-problem.hh"
+#include "tie-configuration.hh"
+using namespace std;
-/*
- tie dir depends on what Tie_column does.
-*/
-/*
- TODO: this doesn't follow standard pattern. Regularize.
- */
void
-Tie_column::add_tie (Grob*me,Grob *s)
+Tie_column::add_tie (Grob *tc, Grob *tie)
{
- if (s->get_parent (Y_AXIS)
- && Tie_column::has_interface (s->get_parent (Y_AXIS)))
- return ;
+ Spanner *me = dynamic_cast<Spanner *> (tc);
- if (! Pointer_group_interface::count (me, "ties"))
+ 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 ())))
{
- dynamic_cast<Spanner*> (me)->set_bound (LEFT, Tie::head (s,LEFT));
- dynamic_cast<Spanner*> (me)->set_bound (RIGHT, Tie::head (s,RIGHT));
+ me->set_bound (LEFT, Tie::head (tie, LEFT));
+ me->set_bound (RIGHT, Tie::head (tie, RIGHT));
}
- s->set_parent (me, Y_AXIS);
- Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), s);
- s->add_dependency (me);
-}
-
-
-void
-Tie_column::set_directions (Grob*me)
-{
- werner_directions (me);
-}
-
-int
-tie_compare (Grob* const & s1,
- Grob* const & s2)
-{
- return sign (Tie::get_position (s1) - Tie::get_position (s2));
+
+ tie->set_parent (me, Y_AXIS);
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), tie);
}
/*
- See [Ross p. 138].
-
-
- In normal chord cases, the outer ties point outwards, and the
- direction of the rest is determined by their staff position.
-
- Ross forgets about the tie that is *on* the middle staff line. We
- assume it goes UP. (TODO: make me settable) */
-void
-Tie_column::old_directions (Grob*me)
+ Extend the spanner over its Tie constituents.
+*/
+MAKE_SCHEME_CALLBACK (Tie_column, before_line_breaking, 1);
+SCM
+Tie_column::before_line_breaking (SCM smob)
{
- Link_array<Grob> ties =
- Pointer_group_interface__extract_grobs (me, (Grob*)0, "ties");
-
- for (int i = ties.size (); i--;)
- if (get_grob_direction (ties[i]))
- ties.del (i);
-
- if (!ties.size ())
- return ;
-
- Direction d = get_grob_direction (me);
- if (d)
+ Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (smob));
+ for (SCM s = me->get_property ("ties"); scm_is_pair (s); s = scm_cdr (s))
{
- for (int i = ties.size (); i--;)
+ Spanner *tie = dynamic_cast<Spanner *> (unsmob_grob (scm_car (s)));
+ Direction dir = LEFT;
+ do
{
- Grob * t = ties[i];
- set_grob_direction (t, d);
+ 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));
}
- return;
- }
-
- if (ties.size () == 1)
- {
- Grob * t = ties[0];
- set_grob_direction (t,Tie::get_default_dir (t));
- return;
- }
-
- ties.sort (tie_compare);
- set_grob_direction (ties[0], DOWN);
- ties.del (0);
-
- set_grob_direction (ties.pop (), UP);
- for (int i=ties.size (); i--;)
- {
- Grob * t = ties[i];
- Real p = Tie::get_position (t);
- Direction d = (Direction) sign (p);
- if (!d)
- d = UP;
- set_grob_direction (t, d);
+ while (flip (&dir) != LEFT);
}
+ return SCM_UNSPECIFIED;
}
-/*
-
-% . The algorithm to choose the direction of the ties doesn't work
-% properly. I suggest the following for applying ties sequentially
-% from top to bottom:
-%
-% + The topmost tie is always `up'.
-%
-% + If there is a vertical gap to the last note above larger than
-% or equal to a fifth (or sixth?), the tie is `up', otherwise it
-% is `down'.
-%
-% + The bottommost tie is always `down'.
-
- */
-void
-Tie_column::werner_directions (Grob *me)
+MAKE_SCHEME_CALLBACK (Tie_column, calc_positioning_done, 1)
+SCM
+Tie_column::calc_positioning_done (SCM smob)
{
- Link_array<Grob> ties =
- Pointer_group_interface__extract_grobs (me, (Grob*)0, "ties");
-
+ Grob *me = unsmob_grob (smob);
+ extract_grob_set (me, "ties", ro_ties);
+ vector<Grob*> ties (ro_ties);
if (!ties.size ())
- return ;
-
- ties.sort (tie_compare);
+ return SCM_BOOL_T;
- Direction d = get_grob_direction (me);
- if (d)
- {
- for (int i = ties.size (); i--;)
- {
- Grob * t = ties[i];
- if (!get_grob_direction (t))
- set_grob_direction (t, d);
- }
- return ;
- }
-
- if (ties.size () == 1)
- {
- Grob * t = ties[0];
- if (t->live ()
- && !get_grob_direction (t))
- set_grob_direction (t,Tie::get_default_dir (t));
- return ;
- }
- Real last_down_pos = 10000;
- if (!get_grob_direction (ties[0]))
- set_grob_direction (ties[0], DOWN);
-
- for (int i = ties.size (); i--;)
- {
- Grob *t = ties[i];
-
- Direction d = get_grob_direction (t);
- Real p = Tie::get_position (t);
- if (!d)
- {
- if (last_down_pos - p > 5)
- {
- d = UP;
- }
- else
- {
- d = DOWN;
- }
-
- set_grob_direction (t, d);
- }
+ me->set_property ("positioning-done", SCM_BOOL_T);
- if (d == DOWN)
- last_down_pos = p;
- }
+ vector_sort (ties, Tie::less);
- return ;
-}
+ Tie_formatting_problem problem;
+ problem.from_ties (ties);
+ SCM manual_configs = me->get_property ("tie-configuration");
+ problem.set_manual_tie_configuration (manual_configs);
-MAKE_SCHEME_CALLBACK (Tie_column,after_line_breaking,1);
-SCM
-Tie_column::after_line_breaking (SCM smob)
-{
- werner_directions (unsmob_grob (smob));
- return SCM_UNSPECIFIED;
+
+ Ties_configuration base = problem.generate_optimal_configuration ();
+
+ for (vsize i = 0; i < base.size (); i++)
+ {
+ SCM cp = Tie::get_control_points (ties[i], problem.common_x_refpoint (),
+ base[i],
+ problem.details_);
+
+ ties[i]->set_property ("control-points", cp);
+ set_grob_direction (ties[i],
+ base[i].dir_);
+
+ problem.set_debug_scoring (base);
+ }
+ return SCM_BOOL_T;
}
-ADD_INTERFACE (Tie_column,"tie-column-interface",
- "that sets tie directions in a tied chord",
- "direction");
+ADD_INTERFACE (Tie_column,
+ "Object that sets directions of multiple ties in a tied chord.",
+
+ /* properties */
+ "positioning-done "
+ "tie-configuration "
+ );
projects / lilypond.git / blobdiff