Fix broken whitespace. I'd apologize for the compile times if it was my fault :D

[ardour.git] / libs / ardour / ardour / source.h

diff --git a/libs/ardour/ardour/source.h b/libs/ardour/ardour/source.h
index d89c33c74975e6cae9e2eb7dd482b853fec043ed..1dde32d7ef91c2bd65f6753f2b89085246436cdb 100644 (file)
--- a/libs/ardour/ardour/source.h
+++ b/libs/ardour/ardour/source.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000 Paul Davis 
+    Copyright (C) 2000 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
@@ -23,22 +23,20 @@
 #include <string>
 #include <set>
 
+#include <glib.h>
+
 #include <boost/utility.hpp>
-#include <sigc++/signal.h>
-#include <pbd/statefuldestructible.h> 
-#include <evoral/TimeConverter.hpp>
+#include "pbd/statefuldestructible.h"
 
-#include <ardour/ardour.h>
-#include <ardour/session_object.h>
-#include <ardour/data_type.h>
-#include <ardour/readable.h>
+#include "ardour/ardour.h"
+#include "ardour/session_object.h"
+#include "ardour/data_type.h"
 
 namespace ARDOUR {
 
 class Session;
-class Playlist;
 
-class Source : public SessionObject, public ARDOUR::Readable, public boost::noncopyable
+class Source : public SessionObject
 {
   public:
        enum Flag {
@@ -54,87 +52,75 @@ class Source : public SessionObject, public ARDOUR::Readable, public boost::nonc
 
        Source (Session&, DataType type, const std::string& name, Flag flags=Flag(0));
        Source (Session&, const XMLNode&);
-       
+
        virtual ~Source ();
-       
+
        DataType type() { return _type; }
 
        time_t timestamp() const { return _timestamp; }
        void stamp (time_t when) { _timestamp = when; }
-       
-       nframes_t length() const { return _length; }
-       
-       virtual const Glib::ustring& path() const = 0;
 
-       virtual nframes_t natural_position() const { return 0; }
+       virtual bool       empty () const = 0;
+       virtual framecnt_t length (framepos_t pos) const = 0;
+       virtual void       update_length (framepos_t pos, framecnt_t cnt) = 0;
+
+       virtual framepos_t natural_position() const { return 0; }
 
        void mark_for_remove();
-       
+
        virtual void mark_streaming_write_started () {}
        virtual void mark_streaming_write_completed () = 0;
 
        virtual void session_saved() {}
-       
+
        XMLNode& get_state ();
-       int set_state (const XMLNode&);
-       
+       int set_state (const XMLNode&, int version);
+
        bool         destructive() const       { return (_flags & Destructive); }
-       bool         writable () const         { return _flags & Writable; }
-       virtual bool set_destructive (bool yn) { return false; }
+       bool         writable () const;
+       virtual bool set_destructive (bool /*yn*/) { return false; }
        virtual bool length_mutable() const    { return false; }
-       
-       void use ()    { _in_use++; }
-       void disuse () { if (_in_use) { _in_use--; } }
-       
-       void add_playlist (boost::shared_ptr<ARDOUR::Playlist>);
-       void remove_playlist (boost::weak_ptr<ARDOUR::Playlist>);
-
-       uint32_t used() const;
 
-       static sigc::signal<void,Source*>             SourceCreated;
-       sigc::signal<void,boost::shared_ptr<Source> > Switched;
+       static PBD::Signal1<void,Source*>             SourceCreated;
 
        bool has_been_analysed() const;
-       virtual bool can_be_analysed() const { return false; } 
+       virtual bool can_be_analysed() const { return false; }
        virtual void set_been_analysed (bool yn);
        virtual bool check_for_analysis_data_on_disk();
 
-       sigc::signal<void> AnalysisChanged;
-       
+       PBD::Signal0<void> AnalysisChanged;
+
        AnalysisFeatureList transients;
        std::string get_transients_path() const;
        int load_transients (const std::string&);
-       
-       void update_length (nframes_t pos, nframes_t cnt);
-       
-       int64_t timeline_position() const { return _timeline_position; }
-       virtual void set_timeline_position (int64_t pos);
-       
+
+       framepos_t    timeline_position() const { return _timeline_position; }
+       virtual void set_timeline_position (framepos_t pos);
+
        void set_allow_remove_if_empty (bool yn);
-       
-       virtual const Evoral::TimeConverter<double, nframes_t>& time_converter() const {
-               return Evoral::IdentityConverter<double, nframes_t>();
-       }
 
        Glib::Mutex& mutex()       { return _lock; }
        Flag         flags() const { return _flags; }
 
+       virtual void inc_use_count ();
+       virtual void dec_use_count ();
+       int  use_count() const { return g_atomic_int_get (&_use_count); }
+       bool used() const { return use_count() > 0; }
+       uint32_t level() const { return _level; }
+
   protected:
        DataType            _type;
        Flag                _flags;
        time_t              _timestamp;
-       nframes_t           _length;
-       int64_t             _timeline_position;
+       framepos_t          _timeline_position;
        bool                _analysed;
        mutable Glib::Mutex _lock;
        mutable Glib::Mutex _analysis_lock;
-       Glib::Mutex         _playlist_lock;
-       
-       typedef std::map<boost::shared_ptr<ARDOUR::Playlist>, uint32_t > PlaylistMap;
-       PlaylistMap _playlists;
+       gint                _use_count; /* atomic */
+       uint32_t            _level; /* how deeply nested is this source w.r.t a disk file */
 
   private:
-       uint32_t _in_use;
+       void fix_writable_flags ();
 };
 
 }