* The grand 2005-2006 replace.

[lilypond.git] / lily / tie-column.cc

diff --git a/lily/tie-column.cc b/lily/tie-column.cc
index be2116eeeb0a4a8fbadab189d9add99703b30913..1ee3d0c03f331512fb5dd99738b7cb6ce79dd8b4 100644 (file)
--- a/lily/tie-column.cc
+++ b/lily/tie-column.cc
@@ -1,36 +1,116 @@
-/*   
-  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--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 
 #include "tie-column.hh"
-#include "group-interface.hh"
 
-Tie_column::Tie_column ()
-{
-  set_elt_property ("ties", SCM_EOL);
-}
+#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 "tie-column-format.hh"
+#include "tie-formatting-problem.hh"
+#include "tie-configuration.hh"
+
+using namespace std;
 
 void
-Tie_column::add_tie (Score_element *s)
+Tie_column::add_tie (Grob *me, Grob *tie)
 {
-  group (s).add_element (s);
-  s->add_dependency (this);
+  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);
 }
 
-void
-Tie_column::set_directions ()
+/*
+  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<Score_element> s =
-    Group_interface__extract_elements (this, (Score_element*)0, "ties");
+  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;
 }
 
-void
-Tie_column::do_post_processing ()
+MAKE_SCHEME_CALLBACK(Tie_column, calc_positioning_done, 1)
+SCM
+Tie_column::calc_positioning_done (SCM smob)
 {
-  set_directions ();
+  Grob *me = unsmob_grob (smob);
+  extract_grob_set (me, "ties", ro_ties);
+  Link_array<Grob> ties (ro_ties);
+  if (!ties.size ())
+    return SCM_BOOL_T;
+
+  if (ties.size() == 1)
+    {
+      /*
+       Already handled by standard mechanisms.
+       */
+      return SCM_BOOL_T;
+    }
+  
+  ties.sort (&Tie::compare);
+
+  Tie_formatting_problem problem;
+  problem.from_ties (ties);
+
+  SCM manual_configs = me->get_property ("tie-configuration");
+  problem.set_manual_tie_configuration (manual_configs);
+
+
+  Ties_configuration base = problem.generate_optimal_chord_configuration ();
+
+  for (int i = 0; i < base.size(); i++)
+    {
+      Tie::set_control_points (ties[i], problem.common_x_refpoint (),
+                              base[i],
+                              problem.details_);
+      set_grob_direction (ties[i],
+                         base[i].dir_);
+    }
+  return SCM_BOOL_T;
 }
+
+
+
+ADD_INTERFACE (Tie_column, "tie-column-interface",
+              "Object that sets directions of multiple ties in a tied chord",
+
+              /* properties */
+              "positioning-done "
+              "tie-configuration "
+              );
+