lily/semi-tie-column.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2005--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6
   7   LilyPond is free software: you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation, either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   LilyPond is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "semi-tie-column.hh"
  22 #include "semi-tie.hh"
  23 #include "grob.hh"
  24 #include "tie-column.hh"
  25 #include "tie.hh"
  26 #include "directional-element-interface.hh"
  27 #include "pointer-group-interface.hh"
  28 #include "staff-symbol-referencer.hh"
  29 #include "item.hh"
  30 #include "tie-formatting-problem.hh"
  31 #include "tie-column-format.hh"
  32
  33
  34 ADD_INTERFACE (Semi_tie_column,
  35               "The interface for a column of l.v. (laissez vibrer) ties.",
  36
  37               /* properties */
  38               "positioning-done "
  39               "head-direction "
  40               "tie-configuration "
  41               );
  42
  43
  44
  45 /*
  46   Cut & paste from tie-column.cc
  47  */
  48 MAKE_SCHEME_CALLBACK (Semi_tie_column, calc_positioning_done, 1);
  49 SCM
  50 Semi_tie_column::calc_positioning_done (SCM smob)
  51 {
  52   Grob *me = unsmob_grob (smob);
  53
  54   me->set_property ("positioning-done", SCM_BOOL_T);
  55
  56   extract_grob_set (me, "ties", lv_ro_ties);
  57   vector<Grob*> lv_ties (lv_ro_ties);
  58
  59   vector_sort (lv_ties, Semi_tie::less);
  60
  61   Ties_configuration ties_config;
  62
  63
  64   Tie_formatting_problem problem;
  65
  66   problem.from_semi_ties (lv_ties, to_dir (me->get_property ("head-direction")));
  67
  68   SCM manual_configs = me->get_property ("tie-configuration");
  69   problem.set_manual_tie_configuration (manual_configs);
  70
  71   Ties_configuration base = problem.generate_optimal_configuration ();
  72   for (vsize i = 0; i < lv_ties.size (); i++)
  73     {
  74       SCM cp = Tie::get_control_points (lv_ties[i], problem.common_x_refpoint (), base[i],
  75                                         problem.details_);
  76
  77       lv_ties[i]->set_property ("control-points", cp);
  78       set_grob_direction (lv_ties[i], base[i].dir_);
  79
  80       problem.set_debug_scoring (base);
  81     }
  82
  83   return SCM_BOOL_T;
  84 }
  85
  86 MAKE_SCHEME_CALLBACK (Semi_tie_column, calc_head_direction, 1);
  87 SCM
  88 Semi_tie_column::calc_head_direction (SCM smob)
  89 {
  90   Grob *me = unsmob_grob (smob);
  91
  92   extract_grob_set (me, "ties", ties);
  93   Direction d = LEFT;
  94   for (vsize i = 0; i < ties.size (); i++)
  95     {
  96       Direction this_d = to_dir (ties[i]->get_property ("head-direction"));
  97       if (i > 0 && d != this_d)
  98         {
  99           programming_error ("all semi-ties in a semi-tie-column should have the same head-direction");
 100           return scm_from_int (d);
 101         }
 102       d = this_d;
 103     }
 104   return scm_from_int (d);
 105 }