Fix some bugs in the dynamic engraver and PostScript backend

[lilypond.git] / lily / include / pitch.hh

diff --git a/lily/include/pitch.hh b/lily/include/pitch.hh
index a3c63fb25b64b6ceeb5414e262510799c9451736..57cb076b526fdcfa4566a6408b71e3de30fda551 100644 (file)
--- a/lily/include/pitch.hh
+++ b/lily/include/pitch.hh
@@ -1,11 +1,10 @@
-/*   
+/*
   pitch.hh -- declare Pitch
-  
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1998--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1998--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 
 #ifndef MUSICAL_PITCH_HH
 #define MUSICAL_PITCH_HH
@@ -13,76 +12,78 @@
 #include "lily-proto.hh"
 #include "smobs.hh"
 
-/** A "tonal" pitch. This is a pitch used in diatonal western
-   music (12 semitones in an octave), as opposed to a frequency in Hz
-   or a integer number of semitones.
+/** A "tonal" pitch. This is a pitch used in diatonal western music
+    (24 quartertones in an octave), as opposed to a frequency in Hz or a
+    integer number of semitones.
 
-  Pitch is lexicographically ordered by (octave, notename,
-    alteration).    
-  
+    Pitch is lexicographically ordered by (octave, notename,
+    alteration).
 
-   TODO:
 
-   - add indeterminate octaves, so it can be used as a key in keySigature
+    TODO:
 
-   - abstract out the representation of alteration_, so we can
-   put micropitches (quartertones, etc.) in the Pitch object
+    - add indeterminate octaves, so it can be used as a key in keySigature
 */
 class Pitch
 {
 private:                               // fixme
   /*
     TODO: use SCM
-   */
+  */
 
-    /// 0 is c, 6 is b
   int notename_;
-  
-  /// 0 natural, 1 sharp, etc
   int alteration_;
-
-  /// 0 is central c
   int octave_;
- 
+
   void transpose (Pitch);
   void up_to (int);
   void down_to (int);
   void normalise ();
 
 public:
-  
+
   int get_octave () const;
   int get_notename () const;
   int get_alteration () const;
 
-  Pitch (int octave, int notename,int accidental);
+  Pitch (int octave, int notename, int accidental);
   Pitch ();
 
   Pitch transposed (Pitch) const;
   Pitch to_relative_octave (Pitch) const;
 
-  static int compare (Pitch const&,Pitch const&);
-  /// return large part of interval from central c
+  static int compare (Pitch const &, Pitch const &);
+
   int steps () const;
-  /// return pitch from central c (in halfnotes)
-  int semitone_pitch () const; 
-  String string () const;
+  int semitone_pitch () const;
+  int quartertone_pitch () const;
+  string to_string () const;
 
-  SCM smobbed_copy () const;
   DECLARE_SCHEME_CALLBACK (less_p, (SCM a, SCM b));
   DECLARE_SIMPLE_SMOBS (Pitch,);
 };
 
+enum
+  {
+    DOUBLE_FLAT = -4,
+    THREE_Q_FLAT,
+    FLAT,
+    SEMI_FLAT,
+    NATURAL,
+    SEMI_SHARP,
+    SHARP,
+    THREE_Q_SHARP,
+    DOUBLE_SHARP,
+  };
+
+SCM ly_pitch_diff (SCM pitch, SCM root);
 SCM ly_pitch_transpose (SCM p, SCM delta);
-DECLARE_UNSMOB(Pitch,pitch);
+DECLARE_UNSMOB (Pitch, pitch);
 
-#include "compare.hh"
 INSTANTIATE_COMPARE (Pitch, Pitch::compare);
 
-int compare (Array<Pitch>*, Array<Pitch>*);
 extern SCM pitch_less_proc;
-Pitch interval (Pitch const & from , Pitch const & to );
+Pitch pitch_interval (Pitch const &from, Pitch const &to);
 
 #endif /* MUSICAL_PITCH_HH */
 
-