From 96d394405f0ad9f1c3488d7cbc5ea46cf3190ca5 Mon Sep 17 00:00:00 2001
From: fred <fred>
Date: Sun, 24 Mar 2002 19:44:34 +0000
Subject: [PATCH] lilypond-0.0.65

---
 lily/include/text-spanner.hh | 18 ++++++++++--------
 lily/text-spanner.cc         | 24 +++++++++++++++++++-----
 2 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/lily/include/text-spanner.hh b/lily/include/text-spanner.hh
index dbdea979ad..a91d8d9691 100644
--- a/lily/include/text-spanner.hh
+++ b/lily/include/text-spanner.hh
@@ -1,5 +1,5 @@
 /*
-  textspanner.hh -- part of LilyPond
+  textspanner.hh -- part of GNU LilyPond
 
   (c) 1996,97 Han-Wen Nienhuys
 */
@@ -13,22 +13,24 @@
 
 /** a spanner which puts texts on top of other spanners.  Use for
   triplets, eentweetjes, ottava, etc.  */
-struct Text_spanner : Spanner {
+class Text_spanner : public Spanner {
+public:
+    Directional_spanner * support;
     Text_def spec;
     Offset text_off_;
-    Directional_spanner*support;
+    NAME_MEMBERS(Text_spanner);
 
-    /* *************** */
+    void set_support(Directional_spanner*);
+    Text_spanner();
+protected:
+    SPANNER_CLONE(Text_spanner)
 
-    NAME_MEMBERS(Text_spanner);
+    virtual void do_substitute_dependency(Score_elem*,Score_elem*);
     virtual void do_pre_processing();
     virtual void do_post_processing();
     virtual Interval height() const ;
     virtual Molecule* brew_molecule_p()const;
     virtual void do_print() const;
-    virtual Spanner* do_break_at(PCol*,PCol*)const;
-    Text_spanner();
-    void set_support(Directional_spanner*);
 };
 #endif // TEXTSPANNER_HH
 
diff --git a/lily/text-spanner.cc b/lily/text-spanner.cc
index 2858a28641..6883dab0b0 100644
--- a/lily/text-spanner.cc
+++ b/lily/text-spanner.cc
@@ -1,3 +1,11 @@
+/*
+  text-spanner.cc -- implement Text_spanner
+
+  source file of the GNU LilyPond music typesetter
+
+  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+*/
+
 #include "molecule.hh"
 #include "boxes.hh"
 #include "text-spanner.hh"
@@ -10,7 +18,10 @@
 void
 Text_spanner::set_support(Directional_spanner*d)
 {
-    support = d;
+    if (support)
+	remove_dependency(support);
+    
+    support =d;
     add_dependency(d);
 }
 
@@ -33,7 +44,7 @@ Text_spanner::do_post_processing()
     switch(spec.align_i_) {
     case 0:
 	text_off_ = support->center() +
-	    Offset(0,support->dir_i_ * paper()->internote() * 4); // todo
+	    Offset(0,support->dir_i_ * paper()->internote_f() * 4); // todo
 	break;
     default:
 	assert(false);
@@ -67,8 +78,11 @@ Text_spanner::height()const
     return brew_molecule_p()->extent().y;
 }
 
-Spanner*
-Text_spanner::do_break_at(PCol*c1, PCol*c2)const
+void
+Text_spanner::do_substitute_dependency(Score_elem* o, Score_elem*n)
 {
-    return new Text_spanner(*this); // todo
+    Directional_spanner * old = (Directional_spanner*)o->spanner();
+    if (support == old)
+	support = (Directional_spanner*) n->spanner();
 }
+
-- 
2.39.5