libs/ardour/playlist_factory.cc

   1 /*
   2     Copyright (C) 2000-2006 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include "pbd/error.h"
  21 #include "pbd/xml++.h"
  22
  23 #include "ardour/playlist.h"
  24 #include "ardour/audioplaylist.h"
  25 #include "ardour/midi_playlist.h"
  26 #include "ardour/playlist_factory.h"
  27
  28 #include "i18n.h"
  29
  30 using namespace std;
  31 using namespace ARDOUR;
  32 using namespace PBD;
  33
  34 PBD::Signal2<void,boost::shared_ptr<Playlist>, bool> PlaylistFactory::PlaylistCreated;
  35
  36 boost::shared_ptr<Playlist>
  37 PlaylistFactory::create (Session& s, const XMLNode& node, bool hidden, bool unused)
  38 {
  39         const XMLProperty* type = node.property("type");
  40
  41         boost::shared_ptr<Playlist> pl;
  42
  43         if ( !type || type->value() == "audio" )
  44                 pl = boost::shared_ptr<Playlist> (new AudioPlaylist (s, node, hidden));
  45         else if ( type->value() == "midi" )
  46                 pl = boost::shared_ptr<Playlist> (new MidiPlaylist (s, node, hidden));
  47
  48         pl->set_region_ownership ();
  49
  50         if (pl && !hidden) {
  51                 PlaylistCreated (pl, unused);
  52         }
  53         return pl;
  54 }
  55
  56 boost::shared_ptr<Playlist>
  57 PlaylistFactory::create (DataType type, Session& s, string name, bool hidden)
  58 {
  59         boost::shared_ptr<Playlist> pl;
  60
  61         if (type == DataType::AUDIO)
  62                 pl = boost::shared_ptr<Playlist> (new AudioPlaylist (s, name, hidden));
  63         else if (type == DataType::MIDI)
  64                 pl = boost::shared_ptr<Playlist> (new MidiPlaylist (s, name, hidden));
  65
  66         if (pl && !hidden) {
  67                 PlaylistCreated (pl, false);
  68         }
  69
  70         return pl;
  71 }
  72
  73 boost::shared_ptr<Playlist>
  74 PlaylistFactory::create (boost::shared_ptr<const Playlist> old, string name, bool hidden)
  75 {
  76         boost::shared_ptr<Playlist> pl;
  77         boost::shared_ptr<const AudioPlaylist> apl;
  78         boost::shared_ptr<const MidiPlaylist> mpl;
  79
  80         if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
  81                 pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, name, hidden));
  82                 pl->set_region_ownership ();
  83         } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
  84                 pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, name, hidden));
  85                 pl->set_region_ownership ();
  86         }
  87
  88         if (pl && !hidden) {
  89                 PlaylistCreated (pl, false);
  90         }
  91
  92         return pl;
  93 }
  94
  95 boost::shared_ptr<Playlist>
  96 PlaylistFactory::create (boost::shared_ptr<const Playlist> old, nframes_t start, nframes_t cnt, string name, bool hidden)
  97 {
  98         boost::shared_ptr<Playlist> pl;
  99         boost::shared_ptr<const AudioPlaylist> apl;
 100         boost::shared_ptr<const MidiPlaylist> mpl;
 101
 102         if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
 103                 pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, start, cnt, name, hidden));
 104                 pl->set_region_ownership ();
 105         } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
 106                 pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, start, cnt, name, hidden));
 107                 pl->set_region_ownership ();
 108         }
 109
 110         /* this factory method does NOT notify others */
 111
 112         return pl;
 113 }