2 Copyright (C) 2000 Paul Davis
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.
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.
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.
20 #ifndef __ardour_source_h__
21 #define __ardour_source_h__
26 #include <sigc++/signal.h>
28 #include <pbd/statefuldestructible.h>
30 #include <ardour/ardour.h>
31 #include <ardour/session_object.h>
32 #include <ardour/data_type.h>
33 #include <ardour/readable.h>
40 class Source : public SessionObject, public ARDOUR::Readable
43 Source (Session&, const std::string& name, DataType type);
44 Source (Session&, const XMLNode&);
48 DataType type() { return _type; }
50 time_t timestamp() const { return _timestamp; }
51 void stamp (time_t when) { _timestamp = when; }
53 /** @return the number of items in this source */
54 nframes_t length() const { return _length; }
56 virtual nframes_t natural_position() const { return 0; }
58 virtual void mark_for_remove() = 0;
59 virtual void mark_streaming_write_started () {}
60 virtual void mark_streaming_write_completed () = 0;
62 virtual void session_saved() {}
64 XMLNode& get_state ();
65 int set_state (const XMLNode&);
67 virtual bool destructive() const { return false; }
68 virtual bool length_mutable() const { return false; }
70 void use () { _in_use++; }
71 void disuse () { if (_in_use) { _in_use--; } }
73 void add_playlist (boost::shared_ptr<ARDOUR::Playlist>);
74 void remove_playlist (boost::weak_ptr<ARDOUR::Playlist>);
76 uint32_t used() const;
78 static sigc::signal<void,Source*> SourceCreated;
79 sigc::signal<void,boost::shared_ptr<Source> > Switched;
82 void update_length (nframes_t pos, nframes_t cnt);
88 Glib::Mutex playlist_lock;
89 typedef std::map<boost::shared_ptr<ARDOUR::Playlist>, uint32_t > PlaylistMap;
90 PlaylistMap _playlists;
98 #endif /* __ardour_source_h__ */