X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpitch-interval.cc;h=d06d8af713dfb3219b8dc9276ed27627fb87e329;hb=16b127866a6dc83392db2c2ad00a5fffd467b7e6;hp=064c6343275974e0fafbd790e1fc30f9a36d8b0a;hpb=f9214bac21e9926dc3248416f58190c98c4167a9;p=lilypond.git

diff --git a/lily/pitch-interval.cc b/lily/pitch-interval.cc
index 064c634327..d06d8af713 100644
--- a/lily/pitch-interval.cc
+++ b/lily/pitch-interval.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2004--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2004--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "pitch-interval.hh"
@@ -28,11 +28,55 @@ Pitch_interval::is_empty () const
   return at (LEFT) > at (RIGHT);
 }
 
-void
+Drul_array<bool>
 Pitch_interval::add_point (Pitch p)
 {
+  Drul_array<bool> expansions(false,false);
+  if (at (LEFT).tone_pitch () > p.tone_pitch ())
+    {
+      at (LEFT) = p;
+      expansions [LEFT] = true;
+    }
+  if (at (RIGHT).tone_pitch () < p.tone_pitch ())
+    {
+      at (RIGHT) = p;
+      expansions [RIGHT] = true;
+    }
+  return expansions;
+}
+
+
+Pitch_lexicographic_interval::Pitch_lexicographic_interval (Pitch p1, Pitch p2)
+{
+  at (LEFT) = p1;
+  at (RIGHT) = p2;
+}
+
+Pitch_lexicographic_interval::Pitch_lexicographic_interval ()
+{
+  at (LEFT) = Pitch (100, 0, 0);
+  at (RIGHT) = Pitch (-100, 0, 0);
+}
+
+bool
+Pitch_lexicographic_interval::is_empty () const
+{
+  return at (LEFT) > at (RIGHT);
+}
+
+Drul_array<bool>
+Pitch_lexicographic_interval::add_point (Pitch p)
+{
+  Drul_array<bool> expansions(false,false);
   if (at (LEFT) > p)
-    at (LEFT) = p;
+    {
+      at (LEFT) = p;
+      expansions [LEFT] = true;
+    }
   if (at (RIGHT) < p)
-    at (RIGHT) = p;
+    {
+      at (RIGHT) = p;
+      expansions [RIGHT] = true;
+    }
+  return expansions;
 }