Run grand-replace (issue 3765)

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

diff --git a/lily/dot-column.cc b/lily/dot-column.cc
index 320f0e4051100a66dfc8f62a067fa9616252523b..35d3b3f051fa274b14843ae003be53a7151297dc 100644 (file)
--- a/lily/dot-column.cc
+++ b/lily/dot-column.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -59,7 +59,7 @@ Dot_column::calc_positioning_done (SCM smob)
   vector<Grob *> dots
     = extract_grob_array (me, "dots");
 
-  vector<Grob *> main_heads;
+  vector<Grob *> parent_stems;
   Real ss = 0;
 
   Grob *commonx = me;
@@ -73,7 +73,7 @@ Dot_column::calc_positioning_done (SCM smob)
           commonx = stem->common_refpoint (commonx, X_AXIS);
 
           if (Stem::first_head (stem) == n)
-            main_heads.push_back (n);
+            parent_stems.push_back (stem);
         }
     }
 
@@ -83,8 +83,8 @@ Dot_column::calc_positioning_done (SCM smob)
   extract_grob_set (me, "side-support-elements", support);
 
   Interval base_x;
-  for (vsize i = 0; i < main_heads.size (); i++)
-    base_x.unite (main_heads[i]->extent (commonx, X_AXIS));
+  for (vsize i = 0; i < parent_stems.size (); i++)
+    base_x.unite (Stem::first_head (parent_stems[i])->extent (commonx, X_AXIS));
 
   for (vsize i = 0; i < support.size (); i++)
     {
@@ -109,16 +109,17 @@ Dot_column::calc_positioning_done (SCM smob)
 
           y.add_point (y1);
           y.add_point (y2);
+
+          stems.insert (s);
         }
       else if (Note_head::has_interface (s))
-        y = Interval (-1, 1);
+        y = Interval (-1.1, 1.1);
       else
         {
           programming_error ("unknown grob in dot col support");
           continue;
         }
 
-      y *= 2 / ss;
       y += Staff_symbol_referencer::get_position (s);
 
       Box b (s->extent (commonx, X_AXIS), y);
@@ -143,7 +144,44 @@ Dot_column::calc_positioning_done (SCM smob)
         }
     }
 
-  vector_sort (dots, position_less);
+  /*
+    The use of pure_position_less and pure_get_rounded_position below
+    are due to the fact that this callback is called before line breaking
+    occurs.  Because dots' actual Y posiitons may be linked to that of
+    beams (dots are attached to rests, which are shifted to avoid beams),
+    we instead must use their pure Y positions.
+  */
+  vector_sort (dots, pure_position_less);
+
+  SCM chord_dots_limit = me->get_property ("chord-dots-limit");
+  if (scm_is_number (chord_dots_limit))
+    {
+      // Sort dots by stem, then check for dots above the limit for each stem
+      vector <vector <Grob *> > dots_each_stem (parent_stems.size ());
+      for (vsize i = 0; i < dots.size (); i++)
+        if (Grob *stem = unsmob_grob (dots[i]->get_parent (Y_AXIS)
+                                      -> get_object ("stem")))
+          for (vsize j = 0; j < parent_stems.size (); j++)
+            if (stem == parent_stems[j])
+              {
+                dots_each_stem[j].push_back (dots[i]);
+                break;
+              }
+      for (vsize j = 0; j < parent_stems.size (); j++)
+        {
+          Interval chord = Stem::head_positions (parent_stems[j]);
+          int total_room = ((int) chord.length () + 2
+                            + scm_to_int (chord_dots_limit)) / 2;
+          int total_dots = dots_each_stem[j].size ();
+          // remove excessive dots from the ends of the stem
+          for (int first_dot = 0; total_dots > total_room; total_dots--)
+            if (0 == (total_dots - total_room) % 2)
+              dots_each_stem[j][first_dot++]->suicide ();
+            else
+              dots_each_stem[j][first_dot + total_dots - 1]->suicide ();
+        }
+    }
+
   for (vsize i = dots.size (); i--;)
     {
       if (!dots[i]->is_live ())
@@ -170,7 +208,7 @@ Dot_column::calc_positioning_done (SCM smob)
           dp.x_extent_ = note->extent (commonx, X_AXIS);
         }
 
-      int p = Staff_symbol_referencer::get_rounded_position (dp.dot_);
+      int p = Staff_symbol_referencer::pure_get_rounded_position (dp.dot_);
 
       /* icky, since this should go via a Staff_symbol_referencer
          offset callback but adding a dot overwrites Y-offset. */
@@ -179,7 +217,8 @@ Dot_column::calc_positioning_done (SCM smob)
 
       cfg.remove_collision (p);
       cfg[p] = dp;
-      if (Staff_symbol_referencer::on_line (dp.dot_, p))
+      if (Staff_symbol_referencer::on_line (dp.dot_, p) &&
+          dp.dot_->get_property ("style") != ly_symbol2scm ("kievan"))
         cfg.remove_collision (p);
     }
 
@@ -191,7 +230,7 @@ Dot_column::calc_positioning_done (SCM smob)
       /*
         Junkme?
        */
-      Staff_symbol_referencer::set_position (i->second.dot_, i->first);
+      Staff_symbol_referencer::pure_set_position (i->second.dot_, i->first);
     }
 
   me->translate_axis (cfg.x_offset () - me->relative_coordinate (commonx, X_AXIS),
@@ -227,8 +266,10 @@ ADD_INTERFACE (Dot_column,
                " dots so they do not clash with staff lines.",
 
                /* properties */
+               "chord-dots-limit "
                "dots "
                "positioning-done "
                "direction "
+               "note-collision "
               );