-/*
- 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--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
#include "tie-column.hh"
-#include "group-interface.hh"
+
+#include <cmath>
+
+#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"
+
+using namespace std;
-Tie_column::Tie_column (SCM s)
- : Spanner (s)
+void
+Tie_column::add_tie (Grob *me, Grob *tie)
{
- set_elt_pointer ("ties", SCM_EOL);
- set_extent_callback (0, X_AXIS);
- set_extent_callback (0, Y_AXIS);
- set_elt_property ("transparent", SCM_BOOL_T);
+ if (tie->get_parent (Y_AXIS)
+ && Tie_column::has_interface (tie->get_parent (Y_AXIS)))
+ return;
+
+ if (!Pointer_group_interface::count (me, ly_symbol2scm ("ties")))
+ {
+ dynamic_cast<Spanner *> (me)->set_bound (LEFT, Tie::head (tie, LEFT));
+ dynamic_cast<Spanner *> (me)->set_bound (RIGHT, Tie::head (tie, RIGHT));
+ }
+
+ tie->set_parent (me, Y_AXIS);
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), tie);
+ tie->add_dependency (me);
}
void
-Tie_column::add_tie (Tie *s)
+Tie_column::set_directions (Grob *me)
{
- Pointer_group_interface g (this, "ties");
- if (!g.count ())
+ if (!to_boolean (me->get_property ("positioning-done")))
{
- set_bound (LEFT, s->head (LEFT));
- set_bound (RIGHT, s->head (RIGHT));
+ me->set_property ("positioning-done", SCM_BOOL_T);
+ new_directions (me);
}
-
- Pointer_group_interface (this, "ties").add_element (s);
- s->add_dependency (this);
}
-int
-tie_compare (Tie* const & s1,
- Tie* const & s2)
+
+MAKE_SCHEME_CALLBACK (Tie_column, after_line_breaking, 1);
+SCM
+Tie_column::after_line_breaking (SCM smob)
{
- return sign (s1->position_f () - s2->position_f());
+ set_directions (unsmob_grob (smob));
+ return SCM_UNSPECIFIED;
}
/*
- See [Ross p. 138].
-
+ Extend the spanner over its Tie constituents.
+*/
+MAKE_SCHEME_CALLBACK (Tie_column, before_line_breaking, 1);
+SCM
+Tie_column::before_line_breaking (SCM smob)
+{
+ 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;
+}
- 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 this settable) */
void
-Tie_column::set_directions ()
+Tie_column::new_directions (Grob *me)
{
- Link_array<Tie> s =
- Pointer_group_interface__extract_elements (this, (Tie*)0, "ties");
+ extract_grob_set (me, "ties", ro_ties);
+ Link_array<Grob> ties (ro_ties);
+ if (!ties.size ())
+ return;
-
- Direction d = directional_element (this).get ();
-
- if (d)
+ if (ties.size() == 1)
{
- for (int i = s.size (); i--;)
- directional_element (s[i]).set (d);
+ Tie::set_default_control_points (ties[0]);
return;
}
- if (s.size () == 1)
+ ties.sort (&Tie::compare);
+
+ Array<Tie_configuration> tie_configs;
+ for (int i = 0; i < ties.size (); i++)
{
- directional_element (s[0]).set (s[0]->get_default_dir ());
- return;
+ Tie_configuration conf;
+ conf.dir_ = get_grob_direction (ties[i]);
+ conf.position_ = Tie::get_position (ties[i]);
+ tie_configs.push (conf);
+ }
+
+ SCM manual_configs = me->get_property ("tie-configuration");
+ bool manual_override = false;
+ set_manual_tie_configuration (&tie_configs,
+ &manual_override,
+ manual_configs);
+ set_tie_config_directions (&tie_configs);
+
+ Grob *common = me;
+ for (int i = 0; i < ties.size (); i++)
+ {
+ common = dynamic_cast<Spanner*> (ties[i])->get_bound (LEFT)->common_refpoint (common, X_AXIS);
+ common = dynamic_cast<Spanner*> (ties[i])->get_bound (RIGHT)->common_refpoint (common, X_AXIS);
}
+
+ Drul_array< Array<Skyline_entry> > skylines;
+ set_chord_outlines (&skylines, ties, common);
- s.sort (tie_compare);
- directional_element (s[0]).set (DOWN);
- s.del (0);
- directional_element (s.pop ()).set (UP);
+ Tie_details details;
+ details.init (ties[0]);
- for (int i=s.size(); i--; )
+ /*
+ Let the ties flow out, according to our single-tie formatting.
+ */
+ if (!manual_override)
{
- Real p = s[i]->position_f ();
- Direction d = (Direction) sign (p);
- if (!d)
- d = UP;
+ Tie::get_configuration (ties[0], common, &tie_configs.elem_ref (0),
+ &skylines,
+ details
+ );
+ Tie::get_configuration (ties.top (), common,
+ &tie_configs.elem_ref (tie_configs.size()-1),
+ &skylines,
+ details
+ );
+ }
+
+ /*
+ Calculate final width and shape of the ties.
+ */
+ for (int i = 0; i < ties.size(); i++)
+ {
+ if (!manual_override
+ && (i == 0 || i == ties.size () -1))
+ continue;
- directional_element (s[i]).set (d);
+
+ final_shape_adjustment (tie_configs[i],
+ skylines,
+ ties[0],
+ details);
}
+
+ /*
+ Try to shift small ties into available spaces.
+ */
+ if (!manual_override)
+ {
+ shift_small_ties (&tie_configs, ties[0], details);
+ }
+
+ for (int i = 0; i < ties.size(); i++)
+ {
+ Tie::set_control_points (ties[i], common, tie_configs[i],
+ details
+ );
+ set_grob_direction (ties[i], tie_configs[i].dir_);
+ }
}
-void
-Tie_column::after_line_breaking ()
-{
- set_directions ();
-}
+
+
+ADD_INTERFACE (Tie_column, "tie-column-interface",
+ "Object that sets directions of multiple ties in a tied chord",
+
+ /* properties */
+ "positioning-done "
+ "tie-configuration "
+ );
+
projects / lilypond.git / blobdiff