Re: [Lilypond-auto] Issue 3878 in lilypond: MIDI lyrics start at 0 even when music doesn't

[lilypond]

Comment #18 on issue 3878 by address@hidden: MIDI lyrics start at 0 even when  
music doesn't
http://code.google.com/p/lilypond/issues/detail?id=3878

first_mom as such is rather trivial.  It's just a bit of verbiage (could be  
reduced by putting it only in Global_context instead of in every context).   
Ignore the commit message:

commit 9aef3cf59f3b13dceeb85e58c904def29f31fb4a
Author: David Kastrup <address@hidden>
Date:   Wed Mar 12 12:21:33 2014 +0100

    Issue 1412: programming error: Going back in MIDI time

diff --git a/lily/context.cc b/lily/context.cc
index a27db01..bfbf7e5 100644
--- a/lily/context.cc
+++ b/lily/context.cc
@@ -641,6 +641,12 @@ Context::~Context ()
 }

 Moment
+Context::first_mom () const
+{
+  return daddy_context_->first_mom ();
+}
+
+Moment
 Context::now_mom () const
 {
   Context const *p = this;
diff --git a/lily/global-context.cc b/lily/global-context.cc
index 5aa7066..521c860 100644
--- a/lily/global-context.cc
+++ b/lily/global-context.cc
@@ -36,6 +36,7 @@ Global_context::Global_context (Output_def *o)
   output_def_ = o;
   definition_ = find_context_def (o, ly_symbol2scm ("Global"));

+  first_mom_.set_infinite (-1);
   now_mom_.set_infinite (-1);
   prev_mom_.set_infinite (-1);

@@ -105,6 +106,12 @@ Global_context::prepare (SCM sev)
 }

 Moment
+Global_context::first_mom () const
+{
+  return first_mom_;
+}
+
+Moment
 Global_context::now_mom () const
 {
   return now_mom_;
@@ -161,6 +168,7 @@ Global_context::run_iterator_on_me (Music_iterator  
*iter)
           */
           first = false;
           set_property ("measurePosition", w.smobbed_copy ());
+          first_mom_ = w;
         }

       send_stream_event (this, "Prepare", 0,
diff --git a/lily/include/context.hh b/lily/include/context.hh
index 69bac83..4450657 100644
--- a/lily/include/context.hh
+++ b/lily/include/context.hh
@@ -115,6 +115,7 @@ public:

   virtual Context *get_score_context () const;
   virtual Output_def *get_output_def () const;
+  virtual Moment first_mom () const;
   virtual Moment now_mom () const;
   virtual Context *get_default_interpreter (const string &context_id = "");

diff --git a/lily/include/global-context.hh b/lily/include/global-context.hh
index 8c1b8b6..5abd181 100644
--- a/lily/include/global-context.hh
+++ b/lily/include/global-context.hh
@@ -45,11 +45,13 @@ public:
   DECLARE_LISTENER (prepare);
   virtual SCM get_output ();
   virtual Output_def *get_output_def () const;
+  virtual Moment first_mom () const;
   virtual Moment now_mom () const;
   virtual Context *get_default_interpreter (const string &context_id = "");

   Moment previous_moment () const;
 protected:
+  Moment first_mom_;
   Moment prev_mom_;
   Moment now_mom_;
 };


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