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
  49         pl->set_region_ownership ();
  50
  51         if (pl && !hidden) {
  52                 PlaylistCreated (pl, unused);
  53         }
  54         return pl;
  55 }
  56
  57 boost::shared_ptr<Playlist>
  58 PlaylistFactory::create (DataType type, Session& s, string name, bool hidden)
  59 {
  60         boost::shared_ptr<Playlist> pl;
  61
  62         if (type == DataType::AUDIO)
  63                 pl = boost::shared_ptr<Playlist> (new AudioPlaylist (s, name, hidden));
  64         else if (type == DataType::MIDI)
  65                 pl = boost::shared_ptr<Playlist> (new MidiPlaylist (s, name, hidden));
  66
  67         if (pl && !hidden) {
  68                 PlaylistCreated (pl, false);
  69         }
  70
  71         return pl;
  72 }
  73
  74 boost::shared_ptr<Playlist>
  75 PlaylistFactory::create (boost::shared_ptr<const Playlist> old, string name, bool hidden)
  76 {
  77         boost::shared_ptr<Playlist> pl;
  78         boost::shared_ptr<const AudioPlaylist> apl;
  79         boost::shared_ptr<const MidiPlaylist> mpl;
  80
  81         if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
  82                 pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, name, hidden));
  83                 pl->set_region_ownership ();
  84         } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
  85                 pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, name, hidden));
  86                 pl->set_region_ownership ();
  87         }
  88
  89         if (pl && !hidden) {
  90                 PlaylistCreated (pl, false);
  91         }
  92
  93         return pl;
  94 }
  95
  96 boost::shared_ptr<Playlist>
  97 PlaylistFactory::create (boost::shared_ptr<const Playlist> old, framepos_t start, framecnt_t cnt, string name, bool hidden)
  98 {
  99         boost::shared_ptr<Playlist> pl;
 100         boost::shared_ptr<const AudioPlaylist> apl;
 101         boost::shared_ptr<const MidiPlaylist> mpl;
 102
 103         if ((apl = boost::dynamic_pointer_cast<const AudioPlaylist> (old)) != 0) {
 104                 pl = boost::shared_ptr<Playlist> (new AudioPlaylist (apl, start, cnt, name, hidden));
 105                 pl->set_region_ownership ();
 106         } else if ((mpl = boost::dynamic_pointer_cast<const MidiPlaylist> (old)) != 0) {
 107                 pl = boost::shared_ptr<Playlist> (new MidiPlaylist (mpl, start, cnt, name, hidden));
 108                 pl->set_region_ownership ();
 109         }
 110
 111         /* this factory method does NOT notify others */
 112
 113         return pl;
 114 }