rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 93 insertions, 0 deletions

diff --git a/libs/ardour/ardour/audioplaylist.h b/libs/ardour/ardour/audioplaylist.h
new file mode 100644
index 0000000000..4acbc9ad51
--- /dev/null
+++ b/libs/ardour/ardour/audioplaylist.h
@@ -0,0 +1,93 @@
+/*
+    Copyright (C) 2003 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.
+
+*/
+
+#ifndef __ardour_audio_playlist_h__
+#define __ardour_audio_playlist_h__
+
+#include <vector>
+#include <list>
+
+#include <ardour/ardour.h>
+#include <ardour/playlist.h>
+
+namespace ARDOUR  {
+
+class Session;
+class Region;
+class AudioRegion;
+class Source;
+
+class AudioPlaylist : public ARDOUR::Playlist
+{
+  public:
+	typedef std::list<boost::shared_ptr<Crossfade> > Crossfades;
+	
+   public:
+	AudioPlaylist (Session&, const XMLNode&, bool hidden = false);
+	AudioPlaylist (Session&, string name, bool hidden = false);
+	AudioPlaylist (boost::shared_ptr<const AudioPlaylist>, string name, bool hidden = false);
+	AudioPlaylist (boost::shared_ptr<const AudioPlaylist>, nframes_t start, nframes_t cnt, string name, bool hidden = false);
+
+	~AudioPlaylist ();
+
+	void clear (bool with_signals=true);
+
+        nframes_t read (Sample *dst, Sample *mixdown, float *gain_buffer, nframes_t start, nframes_t cnt, uint32_t chan_n=0);
+
+	int set_state (const XMLNode&);
+
+	sigc::signal<void,boost::shared_ptr<Crossfade> > NewCrossfade; 
+
+	template<class T> void foreach_crossfade (T *t, void (T::*func)(boost::shared_ptr<Crossfade>));
+	void crossfades_at (nframes_t frame, Crossfades&);
+
+	bool destroy_region (boost::shared_ptr<Region>);
+
+    protected:
+
+	/* playlist "callbacks" */
+	void notify_crossfade_added (boost::shared_ptr<Crossfade>);
+	void flush_notifications ();
+
+	void finalize_split_region (boost::shared_ptr<Region> orig, boost::shared_ptr<Region> left, boost::shared_ptr<Region> right);
+	
+        void refresh_dependents (boost::shared_ptr<Region> region);
+        void check_dependents (boost::shared_ptr<Region> region, bool norefresh);
+        void remove_dependents (boost::shared_ptr<Region> region);
+
+    private:
+       Crossfades      _crossfades;
+       Crossfades      _pending_xfade_adds;
+
+       void crossfade_invalidated (boost::shared_ptr<Region>);
+       XMLNode& state (bool full_state);
+       void dump () const;
+
+       bool region_changed (Change, boost::shared_ptr<Region>);
+       void crossfade_changed (Change);
+       void add_crossfade (boost::shared_ptr<Crossfade>);
+
+       void source_offset_changed (boost::shared_ptr<AudioRegion> region);
+};
+
+} /* namespace ARDOUR */
+
+#endif	/* __ardour_audio_playlist_h__ */
+
+