fix crash when copy'ing latent plugins

[ardour.git] / libs / ardour / playlist_factory.cc

diff --git a/libs/ardour/playlist_factory.cc b/libs/ardour/playlist_factory.cc
index 862f85a402f87236dc47b2f49f5d10f0d8d701cc..46f9910738d1c4562d52b7617cfb156804d0b731 100644 (file)
--- a/libs/ardour/playlist_factory.cc
+++ b/libs/ardour/playlist_factory.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000-2006 Paul Davis 
+    Copyright (C) 2000-2006 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -15,98 +15,119 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
-#include <pbd/error.h>
+#include "pbd/error.h"
+#include "pbd/xml++.h"
 
-#include <ardour/playlist.h>
-#include <ardour/audioplaylist.h>
-#include <ardour/midi_playlist.h>
-#include <ardour/playlist_factory.h>
+#include "ardour/playlist.h"
+#include "ardour/audioplaylist.h"
+#include "ardour/midi_playlist.h"
+#include "ardour/playlist_factory.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
+using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
-sigc::signal<void,boost::shared_ptr<Playlist> > PlaylistFactory::PlaylistCreated;
+PBD::Signal2<void,boost::shared_ptr<Playlist>, bool> PlaylistFactory::PlaylistCreated;
 
-boost::shared_ptr<Playlist> 
-PlaylistFactory::create (Session& s, const XMLNode& node, bool hidden) 
+boost::shared_ptr<Playlist>
+PlaylistFactory::create (Session& s, const XMLNode& node, bool hidden, bool unused)
 {
-       const XMLProperty* type = node.property("type");
+       XMLProperty const * type = node.property("type");
 
        boost::shared_ptr<Playlist> pl;
 
-       if ( !type || type->value() == "audio" )
-               pl = boost::shared_ptr<Playlist> (new AudioPlaylist (s, node, hidden));
-       else if ( type->value() == "midi" )
-               pl = boost::shared_ptr<Playlist> (new MidiPlaylist (s, node, hidden));
+       try {
+               if (!type || type->value() == "audio") {
+                       pl = boost::shared_ptr<Playlist> (new AudioPlaylist (s, node, hidden));
+               } else if (type->value() == "midi") {
+                       pl = boost::shared_ptr<Playlist> (new MidiPlaylist (s, node, hidden));
+               }
 
-       pl->set_region_ownership ();
+               pl->set_region_ownership ();
+
+               if (pl && !hidden) {
+                       PlaylistCreated (pl, unused);
+               }
+               return pl;
 
-       if (pl && !hidden) {
-               PlaylistCreated (pl);
+       } catch (...) {
+               return boost::shared_ptr<Playlist> ();
        }
-       return pl;
 }
 
-boost::shared_ptr<Playlist> 
-PlaylistFactory::create (DataType type, Session& s, string name, bool hidden) 
+boost::shared_ptr<Playlist>
+PlaylistFactory::create (DataType type, Session& s, string name, bool hidden)
 {
        boost::shared_ptr<Playlist> pl;
 
-       if (type == DataType::AUDIO)
-               pl = boost::shared_ptr<Playlist> (new AudioPlaylist (s, name, hidden));
-       else if (type == DataType::MIDI)
-               pl = boost::shared_ptr<Playlist> (new MidiPlaylist (s, name, hidden));
+       try {
+               if (type == DataType::AUDIO)
+                       pl = boost::shared_ptr<Playlist> (new AudioPlaylist (s, name, hidden));
+               else if (type == DataType::MIDI)
+                       pl = boost::shared_ptr<Playlist> (new MidiPlaylist (s, name, hidden));
 
-       if (pl && !hidden) {
-               PlaylistCreated (pl);
-       }
+               if (pl && !hidden) {
+                       PlaylistCreated (pl, false);
+               }
 
-       return pl;
+               return pl;
+       } catch (...) {
+               return boost::shared_ptr<Playlist> ();
+       }
 }
 
-boost::shared_ptr<Playlist> 
-PlaylistFactory::create (boost::shared_ptr<const Playlist> old, string name, bool hidden) 
+boost::shared_ptr<Playlist>
+PlaylistFactory::create (boost::shared_ptr<const Playlist> old, string name, bool hidden)
 {
        boost::shared_ptr<Playlist> pl;
        boost::shared_ptr<const AudioPlaylist> apl;
        boost::shared_ptr<const MidiPlaylist> mpl;
 
-       if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
-               pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, name, hidden));
-               pl->set_region_ownership ();
-       } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
-               pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, name, hidden));
-               pl->set_region_ownership ();
-       }
+       try {
 
-       if (pl && !hidden) {
-               PlaylistCreated (pl);
+               if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
+                       pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, name, hidden));
+                       pl->set_region_ownership ();
+               } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
+                       pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, name, hidden));
+                       pl->set_region_ownership ();
+               }
+
+               if (pl && !hidden) {
+                       PlaylistCreated (pl, false);
+               }
+
+               return pl;
+       } catch (...) {
+               return boost::shared_ptr<Playlist> ();
        }
 
-       return pl;
 }
 
-boost::shared_ptr<Playlist> 
-PlaylistFactory::create (boost::shared_ptr<const Playlist> old, nframes_t start, nframes_t cnt, string name, bool hidden) 
+boost::shared_ptr<Playlist>
+PlaylistFactory::create (boost::shared_ptr<const Playlist> old, framepos_t start, framecnt_t cnt, string name, bool hidden)
 {
        boost::shared_ptr<Playlist> pl;
        boost::shared_ptr<const AudioPlaylist> apl;
        boost::shared_ptr<const MidiPlaylist> mpl;
-       
-       if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
-               pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, start, cnt, name, hidden));
-               pl->set_region_ownership ();
-       } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
-               pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, start, cnt, name, hidden));
-               pl->set_region_ownership ();
-       }
 
-       /* this factory method does NOT notify others */
+       try {
+               if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
+                       pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, start, cnt, name, hidden));
+                       pl->set_region_ownership ();
+               } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
+                       pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, start, cnt, name, hidden));
+                       pl->set_region_ownership ();
+               }
+
+               /* this factory method does NOT notify others */
 
-       return pl;
+               return pl;
+       } catch (...) {
+               return boost::shared_ptr<Playlist> ();
+       }
 }