X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fnote-column.cc;h=91a7690697e338a8fe054808d2aabc9c4401b19d;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=b98b4c68f8079ce1178da7c2cc2883afc978eacf;hpb=785441aeb8cc557217d1b0658ef88d058f58eeb4;p=lilypond.git

diff --git a/lily/note-column.cc b/lily/note-column.cc
index b98b4c68f8..91a7690697 100644
--- a/lily/note-column.cc
+++ b/lily/note-column.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2015 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
@@ -40,35 +40,10 @@ using namespace std;
   annoying layer between (rest)collision & (note-head + stem)
 */
 
-Interval
-Note_column::accidental_width (Grob *me)
-{
-  extract_grob_set (me, "note-heads", nhs);
-  vector<Grob *> accs;
-  for (vsize i = 0; i < nhs.size (); i++)
-    if (Grob *acc = unsmob_grob (nhs[i]->get_object ("accidental-grob")))
-      accs.push_back (acc);
-
-  Grob *common = common_refpoint_of_array (accs, me, X_AXIS);
-  common = common_refpoint_of_array (nhs, common, X_AXIS);
-
-  Interval nhs_ex = Axis_group_interface::relative_group_extent (nhs, common, X_AXIS);
-  Interval accs_ex = Axis_group_interface::relative_group_extent (accs, common, X_AXIS);
-
-  if (nhs_ex.is_empty ())
-    return accs_ex;
-
-  // want an empty interval here
-  if (accs_ex.is_empty ())
-    return Interval ();
-
-  return Interval (accs_ex[LEFT], nhs_ex[LEFT]);
-}
-
 bool
 Note_column::has_rests (Grob *me)
 {
-  return unsmob_grob (me->get_object ("rest"));
+  return Grob::is_smob (me->get_object ("rest"));
 }
 
 bool
@@ -86,7 +61,7 @@ Item *
 Note_column::get_stem (Grob *me)
 {
   SCM s = me->get_object ("stem");
-  return unsmob_item (s);
+  return Item::unsmob (s);
 }
 
 Item *
@@ -96,7 +71,7 @@ Note_column::get_flag (Grob *me)
   if (stem)
     {
       SCM s = stem->get_object ("flag");
-      return unsmob_item (s);
+      return Item::unsmob (s);
     }
   return 0;
 }
@@ -122,7 +97,7 @@ Note_column::head_positions_interval (Grob *me)
 Direction
 Note_column::dir (Grob *me)
 {
-  Grob *stem = unsmob_grob (me->get_object ("stem"));
+  Grob *stem = Grob::unsmob (me->get_object ("stem"));
   if (stem && Stem::has_interface (stem))
     return get_grob_direction (stem);
   else
@@ -132,7 +107,10 @@ Note_column::dir (Grob *me)
         return (Direction)sign (head_positions_interval (me).center ());
     }
 
-  programming_error ("note column without heads and stem");
+  if (has_interface (me))
+    programming_error ("Note_column without heads and stem");
+  else
+    programming_error ("dir() given grob without Note_column interface");
   return CENTER;
 }
 
@@ -146,7 +124,7 @@ Note_column::set_stem (Grob *me, Grob *stem)
 Grob *
 Note_column::get_rest (Grob *me)
 {
-  return unsmob_grob (me->get_object ("rest"));
+  return Grob::unsmob (me->get_object ("rest"));
 }
 
 void
@@ -163,7 +141,7 @@ Note_column::add_head (Grob *me, Grob *h)
     }
   else if (Note_head::has_interface (h))
     {
-      if (unsmob_grob (me->get_object ("rest")))
+      if (Grob::is_smob (me->get_object ("rest")))
         both = true;
       Pointer_group_interface::add_grob (me, ly_symbol2scm ("note-heads"), h);
     }
@@ -181,6 +159,33 @@ Note_column::first_head (Grob *me)
   return st ? Stem::first_head (st) : 0;
 }
 
+/*
+  Return extent of the noteheads in the "main column",
+  (i.e. excluding any suspended noteheads), or extent
+  of the rest (if there are no heads).
+*/
+Interval
+Note_column::calc_main_extent (Grob *me)
+{
+    Grob *main_head = 0;
+    if (get_stem (me))
+        main_head = first_head (me);
+    else
+      {
+        // no stems => no suspended noteheads.
+        extract_grob_set (me, "note-heads", heads);
+        if (heads.size())
+        main_head = heads[0];
+      }
+    Grob *main_item = main_head
+            ? main_head
+            : Grob::unsmob (me->get_object ("rest"));
+
+    return main_item
+            ? main_item->extent (me, X_AXIS)
+            : Interval (0, 0);
+}
+
 /*
   Return the first AccidentalPlacement grob that we find in a note-head.
 */
@@ -192,7 +197,7 @@ Note_column::accidentals (Grob *me)
   for (vsize i = 0; i < heads.size (); i++)
     {
       Grob *h = heads[i];
-      acc = h ? unsmob_grob (h->get_object ("accidental-grob")) : 0;
+      acc = h ? Grob::unsmob (h->get_object ("accidental-grob")) : 0;
       if (acc)
         break;
     }
@@ -213,7 +218,7 @@ Note_column::dot_column (Grob *me)
   extract_grob_set (me, "note-heads", heads);
   for (vsize i = 0; i < heads.size (); i++)
     {
-      Grob *dots = unsmob_grob (heads[i]->get_object ("dot"));
+      Grob *dots = Grob::unsmob (heads[i]->get_object ("dot"));
       if (dots)
         return dots->get_parent (X_AXIS);
     }