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livetrax/libs/ardour/playlist_factory.cc
Paul Davis 9687e8a667 second half of "bomb out if playlist construction from XML fails"
git-svn-id: svn://localhost/ardour2/branches/3.0@9759 d708f5d6-7413-0410-9779-e7cbd77b26cf
2011-06-22 20:06:10 +00:00

134 lines
3.7 KiB
C++

/*
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#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 "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
PBD::Signal2<void,boost::shared_ptr<Playlist>, bool> PlaylistFactory::PlaylistCreated;
boost::shared_ptr<Playlist>
PlaylistFactory::create (Session& s, const XMLNode& node, bool hidden, bool unused)
{
const XMLProperty* type = node.property("type");
boost::shared_ptr<Playlist> pl;
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 ();
if (pl && !hidden) {
PlaylistCreated (pl, unused);
}
return pl;
} catch (...) {
return boost::shared_ptr<Playlist> ();
}
}
boost::shared_ptr<Playlist>
PlaylistFactory::create (DataType type, Session& s, string name, bool hidden)
{
boost::shared_ptr<Playlist> pl;
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, false);
}
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> pl;
boost::shared_ptr<const AudioPlaylist> apl;
boost::shared_ptr<const MidiPlaylist> mpl;
try {
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> ();
}
}
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;
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;
} catch (...) {
return boost::shared_ptr<Playlist> ();
}
}