X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fsession_playlists.cc;h=5713e1545807e109ddb91f645f92af5b403f7ca7;hb=8018bed0ded65003279dfbdf446bae2697378488;hp=cc2f1b25abf06927a74856f763bd2c59b514dc42;hpb=20262abe7f1f73943ffa1dcf5bfb6599bee5d2a0;p=ardour.git

diff --git a/libs/ardour/session_playlists.cc b/libs/ardour/session_playlists.cc
index cc2f1b25ab..5713e15458 100644
--- a/libs/ardour/session_playlists.cc
+++ b/libs/ardour/session_playlists.cc
@@ -23,7 +23,7 @@
 #include "ardour/playlist_factory.h"
 #include "ardour/session_playlists.h"
 #include "ardour/track.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
 #include "pbd/compose.h"
 #include "pbd/xml++.h"
 
@@ -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;
@@ -333,10 +336,16 @@ SessionPlaylists::maybe_delete_unused (boost::function<int(boost::shared_ptr<Pla
 {
 	vector<boost::shared_ptr<Playlist> > playlists_tbd;
 
-	bool delete_all = false;
+	bool delete_remaining = false;
+	bool keep_remaining = false;
 
 	for (List::iterator x = unused_playlists.begin(); x != unused_playlists.end(); ++x) {
-		if (delete_all) {
+
+		if (keep_remaining) {
+			break;
+		}
+
+		if (delete_remaining) {
 			playlists_tbd.push_back (*x);
 			continue;
 		}
@@ -348,9 +357,14 @@ SessionPlaylists::maybe_delete_unused (boost::function<int(boost::shared_ptr<Pla
 			// abort
 			return true;
 
+		case -2:
+			// keep this and all later
+			keep_remaining = true;
+			break;
+
 		case 2:
 			// delete this and all later
-			delete_all = true;
+			delete_remaining = true;
 			// no break;
 
 		case 1:
@@ -489,3 +503,22 @@ 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, bool incl_unused)
+{
+	Glib::Threads::Mutex::Lock lm (lock);
+	for (List::iterator i = playlists.begin(); i != playlists.end(); i++) {
+		if (!(*i)->hidden()) {
+			functor (*i);
+		}
+	}
+	if (!incl_unused) {
+		return;
+	}
+	for (List::iterator i = unused_playlists.begin(); i != unused_playlists.end(); i++) {
+		if (!(*i)->hidden()) {
+			functor (*i);
+		}
+	}
+}