lily/include/property-iterator.hh

   1 /*
   2   property-iterator.hh -- declare Property_iterator
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9
  10 #ifndef PROPERTY_ITERATOR_HH
  11 #define PROPERTY_ITERATOR_HH
  12
  13 #include "simple-music-iterator.hh"
  14
  15
  16
  17
  18 /**
  19   Iterate a property.
  20  */
  21 class Property_iterator : public Simple_music_iterator
  22 {
  23 public:
  24   DECLARE_SCHEME_CALLBACK(constructor, ());
  25   DECLARE_SCHEME_CALLBACK(once_finalization, (SCM, SCM ));
  26
  27 protected:
  28   virtual void do_quit();
  29   virtual void process (Moment);
  30 };
  31
  32
  33
  34
  35 /**
  36   Iterate a property.
  37  */
  38 class Property_unset_iterator : public Simple_music_iterator
  39 {
  40 public:
  41   DECLARE_SCHEME_CALLBACK(constructor, ());
  42 protected:
  43   virtual void process (Moment);
  44 };
  45
  46 class Push_property_iterator : public Simple_music_iterator
  47 {
  48 public:
  49   DECLARE_SCHEME_CALLBACK(constructor, ());
  50   DECLARE_SCHEME_CALLBACK(once_finalization, (SCM, SCM));
  51 protected:
  52   virtual void process (Moment);
  53   virtual void do_quit();
  54 };
  55
  56 class Pop_property_iterator : public Simple_music_iterator
  57 {
  58 public:
  59   DECLARE_SCHEME_CALLBACK(constructor, ());
  60 protected:
  61   virtual void process (Moment);
  62 };
  63
  64
  65 #endif // PROPERTY_ITERATOR_HH