* The grand 2005-2006 replace.

[lilypond.git] / lily / slur-engraver.cc

diff --git a/lily/slur-engraver.cc b/lily/slur-engraver.cc
index 200ad5c0f3a8d82f6265224031c695fcc63ce963..2481ea41acec36ccbfdeda097faf133523706a63 100644 (file)
--- a/lily/slur-engraver.cc
+++ b/lily/slur-engraver.cc
@@ -1,7 +1,9 @@
 /*
   slur-engraver.cc -- implement Slur_engraver
 
-  (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  source file of the GNU LilyPond music typesetter
+
+  (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "slur.hh"
@@ -11,13 +13,13 @@
 #include "engraver.hh"
 #include "spanner.hh"
 #include "tie.hh"
+#include "warn.hh"
 
 /*
   It is possible that a slur starts and ends on the same note.  At
   least, it is for phrasing slurs: a note can be both beginning and
   ending of a phrase.
 */
-
 class Slur_engraver : public Engraver
 {
   Drul_array<Music *> events_;
@@ -29,10 +31,19 @@ class Slur_engraver : public Engraver
 
 protected:
   virtual bool try_music (Music *);
-  virtual void acknowledge_grob (Grob_info);
-  virtual void stop_translation_timestep ();
+
+  DECLARE_ACKNOWLEDGER (accidental);
+  DECLARE_ACKNOWLEDGER (dynamic_line_spanner);
+  DECLARE_ACKNOWLEDGER (fingering);
+  DECLARE_ACKNOWLEDGER (note_column);
+  DECLARE_ACKNOWLEDGER (script);
+  DECLARE_ACKNOWLEDGER (text_script);
+  DECLARE_ACKNOWLEDGER (tie);
+  DECLARE_ACKNOWLEDGER (tuplet_number);
+  void acknowledge_extra_object (Grob_info);
+  void stop_translation_timestep ();
   virtual void finalize ();
-  virtual void process_music ();
+  void process_music ();
 
 public:
   TRANSLATOR_DECLARATIONS (Slur_engraver);
@@ -66,44 +77,95 @@ Slur_engraver::try_music (Music *m)
 void
 Slur_engraver::set_melisma (bool m)
 {
-  context ()->set_property ("slurMelismaBusy", m ? SCM_BOOL_T :SCM_BOOL_F);
+  context ()->set_property ("slurMelismaBusy", m ? SCM_BOOL_T : SCM_BOOL_F);
 }
 
 void
-Slur_engraver::acknowledge_grob (Grob_info info)
+Slur_engraver::acknowledge_note_column (Grob_info info)
 {
-  Grob *e = info.grob_;
-  if (Note_column::has_interface (info.grob_))
+  Grob *e = info.grob ();
+  for (int i = slurs_.size (); i--;)
+    Slur::add_column (slurs_[i], e);
+  for (int i = end_slurs_.size (); i--;)
+    Slur::add_column (end_slurs_[i], e);
+}
+
+void
+Slur_engraver::acknowledge_extra_object (Grob_info info)
+{
+  if (slurs_.is_empty ()
+      && end_slurs_.is_empty ())
+    return ;
+  
+  Grob *e = info.grob ();
+  SCM avoid = e->get_property ("avoid-slur");
+  if (Tie::has_interface (e)
+      || avoid == ly_symbol2scm ("inside"))
     {
       for (int i = slurs_.size (); i--;)
-       Slur::add_column (slurs_[i], e);
+       Slur::add_extra_encompass (slurs_[i], e);
       for (int i = end_slurs_.size (); i--;)
-       Slur::add_column (end_slurs_[i], e);
+       Slur::add_extra_encompass (end_slurs_[i], e);
     }
-  else
+  else if (avoid == ly_symbol2scm ("outside")
+          || avoid == ly_symbol2scm ("around"))
     {
-      SCM inside = e->get_property ("inside-slur");
-      if (Tie::has_interface (e)
-         || to_boolean (inside))
-       {
-         for (int i = slurs_.size (); i--;)
-           Slur::add_extra_encompass (slurs_[i], e);
-         for (int i = end_slurs_.size (); i--;)
-           Slur::add_extra_encompass (end_slurs_[i], e);
-       }
-      else if (inside == SCM_BOOL_F)
+      Grob *slur = slurs_.size () ? slurs_[0] : 0;
+      slur = (end_slurs_.size () && !slur)
+       ? end_slurs_[0] : slur;
+
+      if (slur)
        {
-         Grob *slur = slurs_.size ()?slurs_[0] : 0;
-         slur = (end_slurs_.size () && !slur)
-           ? end_slurs_[0] : slur;
-
-         if (slur)
-           {
-             e->add_offset_callback (Slur::outside_slur_callback_proc, Y_AXIS);
-             e->set_property ("slur", slur->self_scm ());
-           }
+         chain_offset_callback (e, Slur::outside_slur_callback_proc, Y_AXIS);
+         e->set_object ("slur", slur->self_scm ());
        }
     }
+  else
+    e->warning ("Ignoring grob for slur. avoid-slur not set?");
+}
+
+void
+Slur_engraver::acknowledge_accidental (Grob_info info)
+{
+  acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_dynamic_line_spanner (Grob_info info)
+{
+  acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_fingering (Grob_info info)
+{
+  acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_tuplet_number (Grob_info info)
+{
+  acknowledge_extra_object (info);
+}
+
+
+void
+Slur_engraver::acknowledge_script (Grob_info info)
+{
+  acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_text_script (Grob_info info)
+{
+  //  if (!info.grob ()->internal_has_interface (ly_symbol2scm ("DynamicText")))
+  acknowledge_extra_object (info);
+}
+
+void
+Slur_engraver::acknowledge_tie (Grob_info info)
+{
+  acknowledge_extra_object (info);
 }
 
 void
@@ -119,9 +181,7 @@ Slur_engraver::process_music ()
   if (events_[STOP])
     {
       if (slurs_.size () == 0)
-       {
-         events_[STOP]->origin ()->warning (_ ("No slur to end"));
-       }
+       events_[STOP]->origin ()->warning (_ ("can't end slur"));
 
       end_slurs_ = slurs_;
       slurs_.clear ();
@@ -158,10 +218,19 @@ Slur_engraver::stop_translation_timestep ()
   events_[START] = events_[STOP] = 0;
 }
 
+#include "translator.icc"
+
+ADD_ACKNOWLEDGER (Slur_engraver, accidental);
+ADD_ACKNOWLEDGER (Slur_engraver, dynamic_line_spanner);
+ADD_ACKNOWLEDGER (Slur_engraver, fingering);
+ADD_ACKNOWLEDGER (Slur_engraver, note_column);
+ADD_ACKNOWLEDGER (Slur_engraver, script);
+ADD_ACKNOWLEDGER (Slur_engraver, text_script);
+ADD_ACKNOWLEDGER (Slur_engraver, tie);
+ADD_ACKNOWLEDGER (Slur_engraver, tuplet_number);
 ADD_TRANSLATOR (Slur_engraver,
-               /* descr */ "Build slurs grobs from slur events",
-               /* creats*/ "Slur",
-               /* accepts */ "slur-event",
-               /* acks  */ "note-column-interface accidental-interface fingering-interface script-interface tie-interface text-script-interface",
-               /* reads */ "slurMelismaBusy doubleSlurs",
+               /* doc */ "Build slur grobs from slur events",
+               /* create */ "Slur",
+               /* accept */ "slur-event",
+               /* read */ "slurMelismaBusy doubleSlurs",
                /* write */ "");