Refactored ParentTrack::remove_descendant_track

src/gui/model/parent-track.cpp

@@ -51,21 +51,16 @@ ParentTrack::can_host_children() const
 }
 
 bool
-ParentTrack::remove_descendant_track(const boost::shared_ptr<Track> track)
+ParentTrack::remove_descendant_track(
+  const boost::shared_ptr<Track> track)
 {
   REQUIRE(track);
   
-  BOOST_FOREACH(const boost::shared_ptr<Track> child_track, tracks)
+  boost::shared_ptr<ParentTrack> parent = 
+    find_descendant_track_parent(track);
+  if(parent)
     {
-      REQUIRE(child_track);
-      
-      if(track.get() == child_track.get())
-        {
-          tracks.remove(track);
-          return true;
-        }
-        
-      if(child_track->remove_descendant_track(track))
+      parent->tracks.remove(track);
       return true;
     }
     

src/gui/model/track.cpp

@@ -61,12 +61,6 @@ Track::can_host_children() const
   return false;
 }
 
-bool
-Track::remove_descendant_track(const shared_ptr<Track> /*track*/)
-{
-  return false;
-}
-
 string
 Track::print_branch()
 {

src/gui/model/track.hpp

@@ -70,15 +70,6 @@ public:
    **/
   virtual bool can_host_children() const;
       
-  /**
-   * Tries to remove a given track from amongst the descendants of this
-   * track.
-   * @param The model track to try and remove.
-   * @return Returns true if the track was successfully removed.
-   **/
-  virtual bool remove_descendant_track(
-    const boost::shared_ptr<Track> track);
-    
   /**
    * A utility function that attempts to find the parent of a track by
    * searching through the tree from this track downward.