X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fsession_playlists.cc;h=368b043ef73f335361ddf805f421d02174bbb1af;hb=e845b9f9357c4ff471c02b1f63a61275bb4a7d28;hp=b586ab196ebd318d65f09d9951fe86fa815664ac;hpb=9aacefc17010a889222425f97b99050171165038;p=ardour.git

diff --git a/libs/ardour/session_playlists.cc b/libs/ardour/session_playlists.cc
index b586ab196e..368b043ef7 100644
--- a/libs/ardour/session_playlists.cc
+++ b/libs/ardour/session_playlists.cc
@@ -244,7 +244,6 @@ SessionPlaylists::destroy_region (boost::shared_ptr<Region> r)
 	}
 }
 
-
 void
 SessionPlaylists::find_equivalent_playlist_regions (boost::shared_ptr<Region> region, vector<boost::shared_ptr<Region> >& result)
 {
@@ -260,6 +259,10 @@ SessionPlaylists::source_use_count (boost::shared_ptr<const Source> src) const
 {
 	uint32_t count = 0;
 
+	/* XXXX this can go wildly wrong in the presence of circular references
+	 * between compound regions.
+	 */
+
 	for (List::const_iterator p = playlists.begin(); p != playlists.end(); ++p) {
                 if ((*p)->uses_source (src)) {
                         ++count;
@@ -333,15 +336,39 @@ SessionPlaylists::maybe_delete_unused (boost::function<int(boost::shared_ptr<Pla
 {
 	vector<boost::shared_ptr<Playlist> > playlists_tbd;
 
+	bool delete_remaining = false;
+	bool keep_remaining = false;
+
 	for (List::iterator x = unused_playlists.begin(); x != unused_playlists.end(); ++x) {
 
+		if (keep_remaining) {
+			break;
+		}
+
+		if (delete_remaining) {
+			playlists_tbd.push_back (*x);
+			continue;
+		}
+
 		int status = ask (*x);
 
 		switch (status) {
 		case -1:
+			// abort
 			return true;
 
-		case 0:
+		case -2:
+			// keep this and all later
+			keep_remaining = true;
+			break;
+
+		case 2:
+			// delete this and all later
+			delete_remaining = true;
+			// no break;
+
+		case 1:
+			// delete this
 			playlists_tbd.push_back (*x);
 			break;
 
@@ -465,7 +492,7 @@ SessionPlaylists::playlists_for_track (boost::shared_ptr<Track> tr) const
 {
 	vector<boost::shared_ptr<Playlist> > pl;
 	get (pl);
-	
+
 	vector<boost::shared_ptr<Playlist> > pl_tr;
 
 	for (vector<boost::shared_ptr<Playlist> >::iterator i = pl.begin(); i != pl.end(); ++i) {
@@ -476,3 +503,19 @@ SessionPlaylists::playlists_for_track (boost::shared_ptr<Track> tr) const
 
 	return pl_tr;
 }
+
+void
+SessionPlaylists::foreach (boost::function<void(boost::shared_ptr<const Playlist>)> functor)
+{
+	Glib::Threads::Mutex::Lock lm (lock);
+	for (List::iterator i = playlists.begin(); i != playlists.end(); i++) {
+		if (!(*i)->hidden()) {
+			functor (*i);
+		}
+	}
+	for (List::iterator i = unused_playlists.begin(); i != unused_playlists.end(); i++) {
+		if (!(*i)->hidden()) {
+			functor (*i);
+		}
+	}
+}