Midi pencil undo (not yet serializable).

Formatting fixes for session.h (ie kill more of those damned 8 space expanded tabs).


git-svn-id: svn://localhost/ardour2/trunk@2135 d708f5d6-7413-0410-9779-e7cbd77b26cf

5 files changed, 189 insertions, 49 deletions

diff --git a/libs/ardour/ardour/midi_model.h b/libs/ardour/ardour/midi_model.h
index ff52398180..36c5fe1212 100644
--- a/libs/ardour/ardour/midi_model.h
+++ b/libs/ardour/ardour/midi_model.h
@@ -22,11 +22,15 @@
 #define __ardour_midi_model_h__
 
 #include <boost/utility.hpp>
+#include <pbd/command.h>
 #include <ardour/types.h>
 #include <ardour/midi_buffer.h>
 
 namespace ARDOUR {
 
+class Session;
+
+
 /** This is a slightly higher level (than MidiBuffer) model of MIDI note data.
  * Currently it only represents note data, which is represented as complete
  * note events (ie with a start time and a duration) rather than separate
@@ -39,13 +43,16 @@ public:
 		Note(double s=0, double d=0, uint8_t n=0, uint8_t v=0)
 		: start(s), duration(d), note(n), velocity(v) {}
 
+		inline bool operator==(const Note& other)
+			{ return start == other.start && note == other.note; }
+
 		double start;
 		double duration;
 		uint8_t note;
 		uint8_t velocity;
 	};
 
-	MidiModel(size_t size=0);
+	MidiModel(Session& s, size_t size=0);
 
 	void clear() { _notes.clear(); }
 
@@ -73,13 +80,47 @@ public:
 	inline       Notes& notes()       { return _notes; }
 	inline const Notes& notes() const { return _notes; }
 
+	void     begin_command();
+	Command* current_command() { return _command; }
+	void     finish_command();
+
+	// Commands
+	void add_note(const Note& note);
+	void remove_note(const Note& note);
+
+	sigc::signal<void> ContentsChanged;
+	
 private:
+	class MidiEditCommand : public Command
+	{
+	public:
+		MidiEditCommand (MidiModel& m) : _model(m) {}
+		//MidiEditCommand (MidiModel&, const XMLNode& node);
+		
+		void operator()();
+		void undo();
+		
+		/*int set_state (const XMLNode&);
+		XMLNode& get_state ();*/
+
+		void add_note(const Note& note);
+		void remove_note(const Note& note);
+
+	private:
+		MidiModel&      _model;
+		std::list<Note> _added_notes;
+		std::list<Note> _removed_notes;
+	};
 
 	void append_note_on(double time, uint8_t note, uint8_t velocity);
 	void append_note_off(double time, uint8_t note);
 
+	Session& _session;
+
 	Notes _notes;
 	Notes _write_notes;
+
+	MidiEditCommand* _command; ///< In-progress command
 };
 
 } /* namespace ARDOUR */
diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index 8a51653968..5ba2e39526 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -487,7 +487,7 @@ class Session : public PBD::StatefulDestructible
 	void   resort_routes ();
 	void   resort_routes_using (boost::shared_ptr<RouteList>);
 	
-	void	set_remote_control_ids();
+	void   set_remote_control_ids();
 
 	AudioEngine &engine() { return _engine; };
 
@@ -538,7 +538,7 @@ class Session : public PBD::StatefulDestructible
 	void        request_slave_source (SlaveSource);
 	bool        synced_to_jack() const { return Config->get_slave_source() == JACK; }
 
-   	float       transport_speed() const { return _transport_speed; }
+	float       transport_speed() const { return _transport_speed; }
 	bool        transport_stopped() const { return _transport_speed == 0.0f; }
 	bool        transport_rolling() const { return _transport_speed != 0.0f; }
 
@@ -595,8 +595,8 @@ class Session : public PBD::StatefulDestructible
 	void remove_source (boost::weak_ptr<Source>);
 
 	struct cleanup_report {
-	    vector<string> paths;
-	    int64_t space;
+		vector<string> paths;
+		int64_t        space;
 	};
 
 	int  cleanup_sources (cleanup_report&);
@@ -673,8 +673,9 @@ class Session : public PBD::StatefulDestructible
 
 	/* flattening stuff */
 
-	int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite, vector<boost::shared_ptr<Source> >&,
-				   InterThreadInfo& wot);
+	int write_one_audio_track (AudioTrack&, nframes_t start, nframes_t cnt, bool overwrite,
+			vector<boost::shared_ptr<Source> >&, InterThreadInfo& wot);
+
 	int freeze (InterThreadInfo&);
 
 	/* session-wide solo/mute/rec-enable */
@@ -803,8 +804,8 @@ class Session : public PBD::StatefulDestructible
 		
 	};
 
-        class GlobalSoloStateCommand : public GlobalRouteStateCommand
-        {
+	class GlobalSoloStateCommand : public GlobalRouteStateCommand
+	{
 	  public:
 		GlobalSoloStateCommand (Session &, void *src);
 		GlobalSoloStateCommand (Session&, const XMLNode&);
@@ -812,10 +813,10 @@ class Session : public PBD::StatefulDestructible
 		void undo();
 		XMLNode &get_state();
 		void mark();
-        };
+	};
 
-        class GlobalMuteStateCommand : public GlobalRouteStateCommand
-        {
+	class GlobalMuteStateCommand : public GlobalRouteStateCommand
+	{
 	  public:
 		GlobalMuteStateCommand(Session &, void *src);
 		GlobalMuteStateCommand (Session&, const XMLNode&);
@@ -823,10 +824,10 @@ class Session : public PBD::StatefulDestructible
 		void undo();
 		XMLNode &get_state();
 		void mark();
-        };
+	};
 
-        class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
-        {
+	class GlobalRecordEnableStateCommand : public GlobalRouteStateCommand
+	{
 	  public:
 		GlobalRecordEnableStateCommand(Session &, void *src);
 		GlobalRecordEnableStateCommand (Session&, const XMLNode&);
@@ -834,10 +835,10 @@ class Session : public PBD::StatefulDestructible
 		void undo();
 		XMLNode &get_state();
 		void mark();
-        };
+	};
 
-        class GlobalMeteringStateCommand : public Command
-        {
+	class GlobalMeteringStateCommand : public Command
+	{
 	  public:
 		GlobalMeteringStateCommand(Session &, void *src);
 		GlobalMeteringStateCommand (Session&, const XMLNode&);
@@ -852,7 +853,7 @@ class Session : public PBD::StatefulDestructible
 		void* src;
 		GlobalRouteMeterState before;
 		GlobalRouteMeterState after;
-        };
+	};
 
 	/* clicking */
 
@@ -861,14 +862,14 @@ class Session : public PBD::StatefulDestructible
 	/* tempo FX */
 
 	struct TimeStretchRequest {
-	    boost::shared_ptr<ARDOUR::AudioRegion> region;
-	    float                fraction; /* session: read ; GUI: write */
-	    float                progress; /* session: write ; GUI: read */
-	    bool                 running;  /* read/write */
-	    bool                 quick_seek; /* GUI: write */
-	    bool                 antialias;  /* GUI: write */
-
-	    TimeStretchRequest () {} 
+		boost::shared_ptr<ARDOUR::AudioRegion> region;
+		float fraction; /* session: read ; GUI: write */
+		float progress; /* session: write ; GUI: read */
+		bool  running;  /* read/write */
+		bool  quick_seek; /* GUI: write */
+		bool  antialias;  /* GUI: write */
+
+		TimeStretchRequest () {} 
 	};
 
 	boost::shared_ptr<AudioRegion> tempoize_region (TimeStretchRequest&);
@@ -1088,9 +1089,9 @@ class Session : public PBD::StatefulDestructible
 	bool                     session_midi_feedback;
 	bool                     play_loop;
 	bool                     loop_changing;
-	nframes_t           last_loopend;
+	nframes_t                last_loopend;
 
-	boost::scoped_ptr<SessionDirectory>        _session_dir;
+	boost::scoped_ptr<SessionDirectory> _session_dir;
 
 	RingBuffer<Event*> pending_events;
 
@@ -1110,11 +1111,11 @@ class Session : public PBD::StatefulDestructible
 	int      load_state (string snapshot_name);
 	bool     save_config_options_predicate (ConfigVariableBase::Owner owner) const;
 
-	nframes_t   _last_roll_location;
-	nframes_t   _last_record_location;
-	bool              pending_locate_roll;
-	nframes_t    pending_locate_frame;
+	nframes_t _last_roll_location;
+	nframes_t _last_record_location;
 
+	bool              pending_locate_roll;
+	nframes_t         pending_locate_frame;
 	bool              pending_locate_flush;
 	bool              pending_abort;
 	bool              pending_auto_loop;
@@ -1123,7 +1124,7 @@ class Session : public PBD::StatefulDestructible
 	float*            butler_gain_buffer;
 	pthread_t         butler_thread;
 	Glib::Mutex       butler_request_lock;
-        Glib::Cond        butler_paused;
+	Glib::Cond        butler_paused;
 	bool              butler_should_run;
 	mutable gint      butler_should_do_transport_work;
 	int               butler_request_pipe[2];
@@ -1512,13 +1513,13 @@ class Session : public PBD::StatefulDestructible
 
 	/* INSERT AND SEND MANAGEMENT */
 	
-	list<PortInsert *>   _port_inserts;
-	list<PluginInsert *> _plugin_inserts;
-	list<Send *>         _sends;
-	boost::dynamic_bitset<uint32_t>  send_bitset;
-	boost::dynamic_bitset<uint32_t>  insert_bitset;
-	uint32_t          send_cnt;
-	uint32_t          insert_cnt;
+	list<PortInsert *>              _port_inserts;
+	list<PluginInsert *>            _plugin_inserts;
+	list<Send *>                    _sends;
+	boost::dynamic_bitset<uint32_t> send_bitset;
+	boost::dynamic_bitset<uint32_t> insert_bitset;
+	uint32_t                        send_cnt;
+	uint32_t                        insert_cnt;
 
 
 	void add_processor (Processor *);
@@ -1605,7 +1606,7 @@ class Session : public PBD::StatefulDestructible
 		    pool.release (ptr);
 	    }
 
-          private:
+	  private:
 	    static Pool pool;
 	};
  
@@ -1620,9 +1621,9 @@ class Session : public PBD::StatefulDestructible
 	nframes_t  click_emphasis_length;
 	mutable Glib::RWLock click_lock;
 
-	static const Sample         default_click[];
+	static const Sample    default_click[];
 	static const nframes_t default_click_length;
-	static const Sample         default_click_emphasis[];
+	static const Sample    default_click_emphasis[];
 	static const nframes_t default_click_emphasis_length;
 
 	Click *get_click();
diff --git a/libs/ardour/midi_model.cc b/libs/ardour/midi_model.cc
index 98d29a2729..2d4a44d437 100644
--- a/libs/ardour/midi_model.cc
+++ b/libs/ardour/midi_model.cc
@@ -22,13 +22,16 @@
 #include <ardour/midi_model.h>
 #include <ardour/midi_events.h>
 #include <ardour/types.h>
+#include <ardour/session.h>
 
 using namespace std;
 using namespace ARDOUR;
 
 
-MidiModel::MidiModel(size_t size)
-	: _notes(size)
+MidiModel::MidiModel(Session& s, size_t size)
+	: _session(s)
+	, _notes(size)
+	, _command(NULL)
 {
 }
 
@@ -140,3 +143,98 @@ MidiModel::append_note_off(double time, uint8_t note_num)
 	}
 }
 
+
+void
+MidiModel::add_note(const Note& note)
+{
+	Notes::iterator i = upper_bound(_notes.begin(), _notes.end(), note, NoteTimeComparator());
+	_notes.insert(i, note);
+	if (_command)
+		_command->add_note(note);
+}
+
+
+void
+MidiModel::remove_note(const Note& note)
+{
+	Notes::iterator n = find(_notes.begin(), _notes.end(), note);
+	if (n != _notes.end())
+		_notes.erase(n);
+	
+	if (_command)
+		_command->remove_note(note);
+}
+
+
+
+void
+MidiModel::begin_command()
+{
+	assert(!_command);
+	_session.begin_reversible_command("midi edit");
+	_command = new MidiEditCommand(*this);
+}
+
+
+void
+MidiModel::finish_command()
+{
+	_session.commit_reversible_command(_command);
+	_command = NULL;
+}
+
+
+// MidiEditCommand
+
+
+void
+MidiModel::MidiEditCommand::add_note(const Note& note)
+{
+	//cerr << "MEC: apply" << endl;
+
+	_removed_notes.remove(note);
+	_added_notes.push_back(note);
+}
+
+
+void
+MidiModel::MidiEditCommand::remove_note(const Note& note)
+{
+	//cerr << "MEC: remove" << endl;
+
+	_added_notes.remove(note);
+	_removed_notes.push_back(note);
+}
+
+		
+void 
+MidiModel::MidiEditCommand::operator()()
+{
+	//cerr << "MEC: apply" << endl;
+	assert(!_model.current_command());
+	
+	for (std::list<Note>::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
+		_model.add_note(*i);
+	
+	for (std::list<Note>::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
+		_model.remove_note(*i);
+
+	_model.ContentsChanged(); /* EMIT SIGNAL */
+}
+
+
+void
+MidiModel::MidiEditCommand::undo()
+{
+	//cerr << "MEC: undo" << endl;
+	assert(!_model.current_command());
+
+	for (std::list<Note>::iterator i = _added_notes.begin(); i != _added_notes.end(); ++i)
+		_model.remove_note(*i);
+	
+	for (std::list<Note>::iterator i = _removed_notes.begin(); i != _removed_notes.end(); ++i)
+		_model.add_note(*i);
+	
+	_model.ContentsChanged(); /* EMIT SIGNAL */
+}
+
diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc
index a346bfd4f2..f2a3121be2 100644
--- a/libs/ardour/midi_source.cc
+++ b/libs/ardour/midi_source.cc
@@ -44,7 +44,7 @@ sigc::signal<void,MidiSource *> MidiSource::MidiSourceCreated;
 
 MidiSource::MidiSource (Session& s, string name)
 	: Source (s, name, DataType::MIDI)
-	, _model(new MidiModel())
+	, _model(new MidiModel(s))
 	, _model_loaded (false)
 {
 	_read_data_count = 0;
@@ -53,7 +53,7 @@ MidiSource::MidiSource (Session& s, string name)
 
 MidiSource::MidiSource (Session& s, const XMLNode& node) 
 	: Source (s, node)
-	, _model(new MidiModel())
+	, _model(new MidiModel(s))
 	, _model_loaded (false)
 {
 	_read_data_count = 0;
diff --git a/libs/ardour/smf_source.cc b/libs/ardour/smf_source.cc
index 39b8252a8a..e7ae4a3239 100644
--- a/libs/ardour/smf_source.cc
+++ b/libs/ardour/smf_source.cc
@@ -787,7 +787,7 @@ SMFSource::load_model(bool lock, bool force_reload)
 	}
 
 	if (! _model)
-		_model = new MidiModel();
+		_model = new MidiModel(_session);
 
 	_model->start_write();