]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/slur-scoring.cc
Doc-hu: Updated macros for web
[lilypond.git] / lily / slur-scoring.cc
index 4e6167a650a88628543feffeb846bc778186a4f4..62eeed5837d15f21342bd01229bc22fe289ab9c7 100644 (file)
@@ -1,10 +1,21 @@
 /*
-  slur-scoring.cc -- Score based slur formatting
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
-
-  (c) 1996--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1996--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
+
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 
@@ -66,51 +77,25 @@ Slur_score_state::~Slur_score_state ()
   junk_pointers (configurations_);
 }
 
-Real
-broken_trend_y (Slur_score_state const &state, Direction hdir)
+/*
+  If a slur is broken across a line break, the direction
+  of the post-break slur must be the same as the pre-break
+  slur.
+*/
+Direction
+Slur_score_state::slur_direction () const
 {
-  /* A broken slur should maintain the same vertical trend
-     the unbroken slur would have had.  */
-  Real by = 0.0;
-  if (Spanner *mother = dynamic_cast<Spanner *> (state.slur_->original ()))
-    {
-      Grob *neighbor = mother->broken_neighbor (hdir);
-      if (!neighbor)
-       return by;
-
-      
-      Spanner *common_mother
-       = dynamic_cast<Spanner *> (state.common_[Y_AXIS]->original ());
-      int common_k
-       = broken_spanner_index (dynamic_cast<Spanner *> (state.common_[Y_AXIS]));
-      int common_j = common_k + hdir;
+  Grob *left_neighbor = slur_->broken_neighbor (LEFT);
 
-      if (common_j < 0 || vsize (common_j) >= common_mother->broken_intos_.size ())
-       return by;
+  if (left_neighbor && left_neighbor->is_live ())
+    return get_grob_direction (left_neighbor);
 
-      Grob *common_next_system = common_mother->broken_intos_[common_j];
-
-      SCM last_point = scm_car (scm_last_pair (neighbor->get_property ("control-points")));
-
-      return scm_to_double (scm_cdr (last_point))
-       + neighbor->relative_coordinate (common_next_system, Y_AXIS);
-    }
-  return by;
-}
+  Direction dir = get_grob_direction (slur_);
 
-/*
-  copy slur dir forwards across line break.
-*/
-void
-Slur_score_state::set_next_direction ()
-{
-  if (extremes_[RIGHT].note_column_)
-    return;
+  if (Grob *right_neighbor = slur_->broken_neighbor (RIGHT))
+    set_grob_direction (right_neighbor, dir);
 
-  if (Grob *neighbor = slur_->broken_neighbor (RIGHT))
-    {
-      set_grob_direction (neighbor, dir_);
-    }
+  return dir;
 }
 
 Encompass_info
@@ -148,7 +133,7 @@ Slur_score_state::get_encompass_info (Grob *col) const
     {
       ei.stem_ = stem->extent (common_[Y_AXIS], Y_AXIS)[dir_];
       if (Grob *b = Stem::get_beam (stem))
-       ei.stem_ += stem_dir * 0.5 * Beam::get_thickness (b);
+       ei.stem_ += stem_dir * 0.5 * Beam::get_beam_thickness (b);
 
       Interval x = stem->extent (common_[X_AXIS], X_AXIS);
       ei.x_ = x.is_empty ()
@@ -236,7 +221,7 @@ Slur_score_state::fill (Grob *me)
   Real lt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
   thickness_ = robust_scm2double (me->get_property ("thickness"), 1.0) * lt;
 
-  dir_ = get_grob_direction (me);
+  dir_ = slur_direction ();
   parameters_.fill (me);
 
   extract_grob_set (me, "note-columns", columns);
@@ -298,14 +283,12 @@ Slur_score_state::fill (Grob *me)
     = (extremes_[LEFT].stem_ && Stem::get_beam (extremes_[LEFT].stem_))
     || (extremes_[RIGHT].stem_ && Stem::get_beam (extremes_[RIGHT].stem_));
 
-  set_next_direction ();
-
   if (is_broken_)
     musical_dy_ = 0.0;
 }
 
 
-MAKE_SCHEME_CALLBACK(Slur, calc_control_points, 1)
+MAKE_SCHEME_CALLBACK (Slur, calc_control_points, 1)
 SCM
 Slur::calc_control_points (SCM smob)
 {
@@ -394,7 +377,7 @@ Slur_score_state::get_best_curve ()
        }
   
       slur_->set_property ("quant-score",
-                          scm_makfrom0str (total.c_str ()));
+                          ly_string2scm (total));
     }
 #endif
 
@@ -653,7 +636,7 @@ Slur_score_state::generate_avoid_offsets () const
 
          if (!xe.is_empty ()
              && !ye.is_empty ())
-           avoid.push_back (Offset (xe.center(), ye[dir_]));
+           avoid.push_back (Offset (xe.center (), ye[dir_]));
        }
     }  
   return avoid;
@@ -815,34 +798,21 @@ Slur_score_state::get_extra_encompass_infos () const
          if (Accidental_interface::has_interface (g))
            {
              penalty = parameters_.accidental_collision_;
-             /* Begin copy accidental.cc */
-             bool parens = false;
-             if (to_boolean (g->get_property ("cautionary")))
-               {
-                 SCM cstyle = g->get_property ("cautionary-style");
-                 parens = ly_is_equal (cstyle, ly_symbol2scm ("parentheses"));
-               }
 
-             SCM accs = g->get_property ("accidentals");
+             Rational alt = ly_scm2rational (g->get_property ("alteration"));
              SCM scm_style = g->get_property ("style");
              if (!scm_is_symbol (scm_style)
-                 && !parens
-                 && scm_ilength (accs) == 1)
+                 && !to_boolean (g->get_property ("parenthesized"))
+                 && !to_boolean (g->get_property ("restore-first")))
                {
                  /* End copy accidental.cc */
-                 switch (scm_to_int (scm_car (accs)))
-                   {
-                   case FLAT:
-                   case DOUBLE_FLAT:
-                     xp = LEFT;
-                     break;
-                   case SHARP:
-                     xp = 0.5 * dir_;
-                     break;
-                   case NATURAL:
-                     xp = -dir_;
-                     break;
-                   }
+                 if (alt == FLAT_ALTERATION
+                     || alt == DOUBLE_FLAT_ALTERATION)
+                   xp = LEFT;
+                 else if (alt == SHARP_ALTERATION)
+                   xp = 0.5 * dir_;
+                 else if (alt == NATURAL_ALTERATION)
+                   xp = -dir_;
                }
            }