lilypond-0.0.23

diff --git a/src/grouping.cc b/src/grouping.cc
index 4b8efaee6cdb8b74eeda27701ef5e387e6114aed..4f02b75378edd735a06133f298c8dd08003a86e7 100644 (file)
--- a/src/grouping.cc
+++ b/src/grouping.cc
@@ -100,11 +100,15 @@ Rhythmic_grouping::intersect(MInterval t)
 
 }
 
+/* I really should be documenting what is happening here, but I find
+  that difficult, since I don't really understand what's going on here.
+
+  */
 void
 Rhythmic_grouping::split(Array<MInterval> splitpoints)
 {
     //check on splitpoints..
-    int j = 0, i=0, starti = 0, startj = 0;
+    int j = 0, i = 0, starti = 0, startj = 0;
     
     Array<Rhythmic_grouping*> ch;
     while (1) {
@@ -162,8 +166,7 @@ Rhythmic_grouping::Rhythmic_grouping(Array<Rhythmic_grouping*> r)
 
 Rhythmic_grouping::~Rhythmic_grouping()
 {
-    junk();
-    
+    junk();    
 }
 
 void
@@ -289,3 +292,28 @@ Rhythmic_grouping::generate_beams(Array<int> flags, int &flagidx)
     return beams;
 }
 
+void
+Rhythmic_grouping::translate(Moment m)
+{
+    if (interval_)
+       *interval_ += m;
+    else
+       for (int i=0; i < children.size(); i++)
+           children[i]->translate(m);
+}
+
+void
+Rhythmic_grouping::extend(MInterval m)
+{    
+    assert(m.left >= interval().left);
+    while (m.right  >interval().right ) {
+       Array<Rhythmic_grouping*> a(children);
+       for (int i=0; i < a.size(); i++) {
+           a[i] =new Rhythmic_grouping(*children[i]);
+           a[i]->translate(children.last()->interval().right);     
+       }
+       children.concat(a);
+    }
+    assert(m.right <= interval().right);
+    OK();
+}