* flower

[lilypond.git] / lily / object-key.cc

diff --git a/lily/object-key.cc b/lily/object-key.cc
index 2f95bec8be76c8dfa55a1f6313cd97afc119fe88..134ff7fb232a3b757e0bc34b3306574bcf59023d 100644 (file)
--- a/lily/object-key.cc
+++ b/lily/object-key.cc
@@ -1,31 +1,29 @@
 /*
-  object-key.cc --  implement Object_key
+  object-key.cc -- implement Object_key
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2004 Han-Wen Nienhuys <hanwen@xs4all.nl>
-
+  (c) 2004--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
-
-#include "object-key.hh"
+#include "lilypond-key.hh"
 #include "ly-smobs.icc"
 
 SCM
 Object_key::mark_smob (SCM key)
 {
-  Object_key* k = (Object_key*) SCM_CELL_WORD_1 (key);
-  k->derived_mark();
+  Object_key *k = (Object_key *) SCM_CELL_WORD_1 (key);
+  k->derived_mark ();
   return SCM_EOL;
 }
 
 void
 Object_key::derived_mark () const
 {
-  
+
 }
 
-Object_key::~Object_key()
+Object_key::~Object_key ()
 {
 }
 
@@ -38,6 +36,10 @@ Object_key::get_type () const
 int
 Object_key::print_smob (SCM smob, SCM port, scm_print_state*)
 {
+  Object_key *k = (Object_key *) SCM_CELL_WORD_1 (smob);
+  scm_puts ("#<Object_key ", port);
+  scm_display (scm_from_int (k->get_type ()), port);
+  scm_puts (">", port);
   return 1;
 }
 
@@ -51,8 +53,8 @@ Object_key::compare (Object_key const *other) const
 {
   if (this == other)
     return 0;
-  
-  int c = sign (get_type () -  other->get_type());
+
+  int c = sign (get_type () - other->get_type ());
   if (c)
     return c;
   else
@@ -62,23 +64,66 @@ Object_key::compare (Object_key const *other) const
 IMPLEMENT_SMOBS (Object_key);
 
 SCM
-Object_key::equal_p (SCM a , SCM b) 
+Object_key::equal_p (SCM a, SCM b)
 {
   Object_key *ka = unsmob_key (a);
   Object_key *kb = unsmob_key (b);
-  
+
   return (ka->compare (kb)) ? SCM_BOOL_F : SCM_BOOL_T;
 }
 
 int
-Object_key::do_compare (Object_key const *other) const
+Object_key::do_compare (Object_key const *) const
 {
   return 0;
 }
 
+SCM
+Object_key::dump () const
+{
+  return scm_cons (scm_from_int (get_type ()),
+                  as_scheme ());
+}
+
+SCM
+Object_key::as_scheme () const
+{
+  return SCM_EOL;
+}
+
+Object_key *
+Object_key::from_scheme (SCM)
+{
+  return new Object_key ();
+}
+
+struct Object_dumper_table_entry
+{
+  Object_key_type type_;
+  Object_key *(*ctor_) (SCM);
+};
+
+static Object_dumper_table_entry undumpers[]
+= {
+  {BASE_KEY, Object_key::from_scheme},
+  {COPIED_KEY, Copied_key::from_scheme},
+  {GENERAL_KEY, Lilypond_general_key::from_scheme},
+  {GROB_KEY, Lilypond_grob_key::from_scheme},
+  {CONTEXT_KEY, Lilypond_context_key::from_scheme},
+  {KEY_COUNT, 0},
+};
+
+Object_key *
+Object_key::undump (SCM scm_key)
+{
+  int t = scm_to_int (scm_car (scm_key));
+  assert (t == undumpers[t].type_);
+  return (undumpers[t].ctor_) (scm_cdr (scm_key));
+}
+
 /****************************************************************/
 
-Copied_key::Copied_key (Object_key const* key, int count)
+Copied_key::Copied_key (Object_key const *key, int count)
 {
   copy_count_ = count;
   original_ = key;
@@ -93,8 +138,8 @@ Copied_key::get_type () const
 int
 Copied_key::do_compare (Object_key const *key) const
 {
-  Copied_key const *other = dynamic_cast<Copied_key const*> (key);
-  
+  Copied_key const *other = dynamic_cast < Copied_key const *> (key);
+
   int c = original_->compare (other->original_);
   if (c)
     return c;
@@ -107,3 +152,16 @@ Copied_key::derived_mark () const
 {
   scm_gc_mark (original_->self_scm ());
 }
+
+SCM
+Copied_key::as_scheme () const
+{
+  return scm_list_2 (original_ ? original_->self_scm () : SCM_BOOL_F, scm_from_int (copy_count_));
+}
+
+Object_key *
+Copied_key::from_scheme (SCM a)
+{
+  return new Copied_key (unsmob_key (scm_car (a)),
+                        scm_to_int (scm_list_ref (a, scm_from_int (1))));
+}