Create the session range location as and when the session first gets some content...
[ardour.git] / gtk2_ardour / midi_region_view.cc
index e7b70d29de8c3c70ce885a3ca7ce5f8dfb303f18..26490f76e73ef0e79f26188f2db1bc03f9853ee4 100644 (file)
 #include <sigc++/signal.h>
 
 #include "pbd/memento_command.h"
+#include "pbd/stateful_diff_command.h"
 
 #include "ardour/playlist.h"
 #include "ardour/tempo.h"
 #include "ardour/midi_region.h"
 #include "ardour/midi_source.h"
-#include "ardour/midi_diskstream.h"
 #include "ardour/midi_model.h"
 #include "ardour/midi_patch_manager.h"
+#include "ardour/session.h"
 
 #include "evoral/Parameter.hpp"
 #include "evoral/Control.hpp"
 
 #include "i18n.h"
 
-using namespace sigc;
 using namespace ARDOUR;
 using namespace PBD;
 using namespace Editing;
 using namespace ArdourCanvas;
+using Gtkmm2ext::Keyboard;
 
 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
                boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
@@ -88,6 +89,8 @@ MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &
        , _pressed_button(0)
        , _sort_needed (true)
        , _optimization_iterator (_events.end())
+       , _list_editor (0)
+       , no_sound_notes (false)
 {
        _note_group->raise_to_top();
 }
@@ -109,7 +112,9 @@ MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &
        , _pressed_button(0)
        , _sort_needed (true)
        , _optimization_iterator (_events.end())
-       
+       , _list_editor (0)
+       , no_sound_notes (false)
+
 {
        _note_group->raise_to_top();
 }
@@ -131,13 +136,15 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other)
        , _pressed_button(0)
        , _sort_needed (true)
        , _optimization_iterator (_events.end())
+       , _list_editor (0)
+       , no_sound_notes (false)
 {
        Gdk::Color c;
        int r,g,b,a;
 
        UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
        c.set_rgb_p (r/255.0, g/255.0, b/255.0);
-       
+
        init (c, false);
 }
 
@@ -156,6 +163,8 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<M
        , _pressed_button(0)
        , _sort_needed (true)
        , _optimization_iterator (_events.end())
+       , _list_editor (0)
+       , no_sound_notes (false)
 {
        Gdk::Color c;
        int r,g,b,a;
@@ -184,9 +193,9 @@ MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 
        region_muted ();
        region_sync_changed ();
-       region_resized (BoundsChanged);
+       region_resized (ARDOUR::bounds_change);
        region_locked ();
-       
+
        reset_width_dependent_items (_pixel_width);
 
        set_colors ();
@@ -199,13 +208,13 @@ MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
        }
 
        group->raise_to_top();
-       group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
+       group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 
        midi_view()->signal_channel_mode_changed().connect(
-                       mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
-       
+                       sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
+
        midi_view()->signal_midi_patch_settings_changed().connect(
-                       mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
+                       sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 }
 
 bool
@@ -232,7 +241,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
        switch (ev->type) {
        case GDK_SCROLL:
                fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
-               
+
                if (ev->scroll.direction == GDK_SCROLL_UP) {
                        change_velocities (true, fine, false);
                        return true;
@@ -265,7 +274,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                        bool end = (ev->key.keyval == GDK_period);
                        bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
                        fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
-                       
+
                        change_note_lengths (fine, shorter, start, end);
 
                        return true;
@@ -297,10 +306,10 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                        return true;
 
                } else if (ev->key.keyval == GDK_Down) {
-                       
+
                        bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
                        fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
-                       
+
                        if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
                                change_velocities (false, fine, allow_smush);
                        } else {
@@ -309,7 +318,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                        return true;
 
                } else if (ev->key.keyval == GDK_Left) {
-                       
+
                        nudge_notes (false);
                        return true;
 
@@ -471,7 +480,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                } else if (_pressed_button != 1) {
                        return false;
                }
-                       
+
                switch (_mouse_state) {
                case Pressed: // Clicked
                        switch (editor.current_mouse_mode()) {
@@ -482,7 +491,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                        case MouseRange:
                                create_note_at(event_x, event_y, _default_note_length);
                                break;
-                       default: 
+                       default:
                                break;
                        }
                        _mouse_state = None;
@@ -498,7 +507,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                                const double x      = drag_rect->property_x1();
                                const double length = trackview.editor().pixel_to_frame(
                                                        drag_rect->property_x2() - drag_rect->property_x1());
-                                       
+
                                create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
                        }
 
@@ -506,7 +515,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                        drag_rect = 0;
                default: break;
                }
-               
+
        default: break;
        }
 
@@ -516,8 +525,10 @@ MidiRegionView::canvas_event(GdkEvent* ev)
 void
 MidiRegionView::show_list_editor ()
 {
-       MidiListEditor* mle = new MidiListEditor (trackview.session(), midi_region());
-       mle->show ();
+       if (!_list_editor) {
+               _list_editor = new MidiListEditor (trackview.session(), midi_region());
+       }
+       _list_editor->present ();
 }
 
 /** Add a note to the model, and the view, at a canvas (click) coordinate.
@@ -551,7 +562,7 @@ MidiRegionView::create_note_at(double x, double y, double length)
 
        MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
        cmd->add(new_note);
-       _model->apply_command(trackview.session(), cmd);
+       _model->apply_command(*trackview.session(), cmd);
 
        play_midi_note (new_note);
 }
@@ -584,15 +595,16 @@ MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 {
        _model = model;
        content_connection.disconnect ();
-       content_connection = _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
+       _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
+
        clear_events ();
 
        if (_enable_display) {
                redisplay_model();
        }
 }
-       
-       
+
+
 void
 MidiRegionView::start_delta_command(string name)
 {
@@ -632,7 +644,7 @@ MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 }
 
 void
-MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev, 
+MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
                                 MidiModel::DiffCommand::Property property,
                                 uint8_t val)
 {
@@ -642,7 +654,7 @@ MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 }
 
 void
-MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev, 
+MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
                                 MidiModel::DiffCommand::Property property,
                                 Evoral::MusicalTime val)
 {
@@ -650,7 +662,7 @@ MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
                _diff_command->change (ev->note(), property, val);
        }
 }
-       
+
 void
 MidiRegionView::apply_delta()
 {
@@ -662,10 +674,10 @@ MidiRegionView::apply_delta()
        for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
                _marked_for_selection.insert((*i)->note());
        }
-       
-       _model->apply_command(trackview.session(), _delta_command);
-       _delta_command = 0; 
-       midi_view()->midi_track()->diskstream()->playlist_modified();
+
+       _model->apply_command(*trackview.session(), _delta_command);
+       _delta_command = 0;
+       midi_view()->midi_track()->playlist_modified();
 
        _marked_for_selection.clear();
        _marked_for_velocity.clear();
@@ -678,9 +690,9 @@ MidiRegionView::apply_diff ()
                return;
        }
 
-       _model->apply_command(trackview.session(), _diff_command);
-       _diff_command = 0; 
-       midi_view()->midi_track()->diskstream()->playlist_modified();
+       _model->apply_command(*trackview.session(), _diff_command);
+       _diff_command = 0;
+       midi_view()->midi_track()->playlist_modified();
 
        _marked_for_velocity.clear();
 }
@@ -696,10 +708,10 @@ MidiRegionView::apply_delta_as_subcommand()
        for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
                _marked_for_selection.insert((*i)->note());
        }
-       
-       _model->apply_command_as_subcommand(trackview.session(), _delta_command);
-       _delta_command = 0; 
-       midi_view()->midi_track()->diskstream()->playlist_modified();
+
+       _model->apply_command_as_subcommand(*trackview.session(), _delta_command);
+       _delta_command = 0;
+       midi_view()->midi_track()->playlist_modified();
 
        _marked_for_selection.clear();
        _marked_for_velocity.clear();
@@ -716,10 +728,10 @@ MidiRegionView::apply_diff_as_subcommand()
        for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
                _marked_for_selection.insert((*i)->note());
        }
-       
-       _model->apply_command_as_subcommand(trackview.session(), _diff_command);
-       _diff_command = 0; 
-       midi_view()->midi_track()->diskstream()->playlist_modified();
+
+       _model->apply_command_as_subcommand(*trackview.session(), _diff_command);
+       _diff_command = 0;
+       midi_view()->midi_track()->playlist_modified();
 
        _marked_for_selection.clear();
        _marked_for_velocity.clear();
@@ -741,10 +753,10 @@ MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
        if (_optimization_iterator != _events.end()) {
                ++_optimization_iterator;
        }
-       
+
        if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
                return *_optimization_iterator;
-       } 
+       }
 
        for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
                if ((*_optimization_iterator)->note() == note) {
@@ -771,12 +783,12 @@ MidiRegionView::redisplay_model()
        for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
                (*i)->invalidate ();
        }
-       
-       _model->read_lock();
-       
+
+       MidiModel::ReadLock lock(_model->read_lock());
+
        MidiModel::Notes& notes (_model->notes());
        _optimization_iterator = _events.begin();
-       
+
        for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 
                boost::shared_ptr<NoteType> note (*n);
@@ -784,14 +796,14 @@ MidiRegionView::redisplay_model()
                bool visible;
 
                if (note_in_region_range (note, visible)) {
-                       
+
                        if ((cne = find_canvas_note (note)) != 0) {
-                               
+
                                cne->validate ();
-                               
+
                                CanvasNote* cn;
                                CanvasHit* ch;
-                               
+
                                if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
                                        update_note (cn);
                                } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
@@ -803,23 +815,23 @@ MidiRegionView::redisplay_model()
                                } else {
                                        cne->hide ();
                                }
-                               
+
                        } else {
-                               
+
                                add_note (note, visible);
                        }
-                       
+
                } else {
-                       
+
                        if ((cne = find_canvas_note (note)) != 0) {
                                cne->validate ();
                                cne->hide ();
                        }
                }
        }
-       
+
        /* remove note items that are no longer valid */
-       
+
        for (Events::iterator i = _events.begin(); i != _events.end(); ) {
                if (!(*i)->valid ()) {
                        delete *i;
@@ -828,12 +840,10 @@ MidiRegionView::redisplay_model()
                        ++i;
                }
        }
-       
+
        display_sysexes();
        display_program_changes();
-       
-       _model->read_unlock();
-       
+
        _marked_for_selection.clear ();
        _marked_for_velocity.clear ();
 
@@ -880,7 +890,7 @@ MidiRegionView::display_program_changes()
 
                MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 
-               boost::shared_ptr<MIDI::Name::Patch> patch = 
+               boost::shared_ptr<MIDI::Name::Patch> patch =
                        MIDI::Name::MidiPatchManager::instance().find_patch(
                                        _model_name, _custom_device_mode, channel, patch_key);
 
@@ -896,13 +906,13 @@ MidiRegionView::display_program_changes()
        }
 }
 
-void 
+void
 MidiRegionView::display_sysexes()
 {
        for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
                Evoral::MusicalTime time = (*i)->time();
                assert(time >= 0);
-               
+
                ostringstream str;
                str << hex;
                for (uint32_t b = 0; b < (*i)->size(); ++b) {
@@ -912,23 +922,23 @@ MidiRegionView::display_sysexes()
                        }
                }
                string text = str.str();
-               
+
                ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 
                const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
-               
+
                double height = midi_stream_view()->contents_height();
-               
+
                boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
                                new CanvasSysEx(*this, *group, text, height, x, 1.0));
-               
+
                // Show unless program change is beyond the region bounds
                if (time - _region->start() >= _region->length() || time < _region->start()) {
                        sysex->hide();
                } else {
                        sysex->show();
                }
-               
+
                _sys_exes.push_back(sysex);
        }
 }
@@ -938,6 +948,8 @@ MidiRegionView::~MidiRegionView ()
 {
        in_destructor = true;
 
+       delete _list_editor;
+
        RegionViewGoingAway (this); /* EMIT_SIGNAL */
 
        if (_active_notes) {
@@ -951,16 +963,16 @@ MidiRegionView::~MidiRegionView ()
 }
 
 void
-MidiRegionView::region_resized (Change what_changed)
+MidiRegionView::region_resized (const PropertyChange& what_changed)
 {
        RegionView::region_resized(what_changed);
-       
-       if (what_changed & ARDOUR::PositionChanged) {
+
+       if (what_changed.contains (ARDOUR::Properties::position)) {
                set_duration(_region->length(), 0);
                if (_enable_display) {
                        redisplay_model();
                }
-       } 
+       }
 }
 
 void
@@ -981,11 +993,11 @@ MidiRegionView::set_height (double height)
        const double old_height = _height;
        RegionView::set_height(height);
        _height = height - FUDGE;
-       
+
        apply_note_range(midi_stream_view()->lowest_note(),
                         midi_stream_view()->highest_note(),
                         height != old_height + FUDGE);
-       
+
        if (name_pixbuf) {
                name_pixbuf->raise_to_top();
        }
@@ -1013,18 +1025,18 @@ MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
                CanvasNoteEvent* event = *i;
                boost::shared_ptr<NoteType> note (event->note());
 
-               if (note->note() < _current_range_min || 
+               if (note->note() < _current_range_min ||
                    note->note() > _current_range_max) {
                        event->hide();
                } else {
                        event->show();
                }
-               
+
                if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
 
                        const double y1 = midi_stream_view()->note_to_y(note->note());
                        const double y2 = y1 + floor(midi_stream_view()->note_height());
-                       
+
                        cnote->property_y1() = y1;
                        cnote->property_y2() = y2;
 
@@ -1033,9 +1045,9 @@ MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
                        double x = trackview.editor().frame_to_pixel(
                                beats_to_frames(note->time()) - _region->start());
                        const double diamond_size = midi_stream_view()->note_height() / 2.0;
-                       double y = midi_stream_view()->note_to_y(event->note()->note()) 
+                       double y = midi_stream_view()->note_to_y(event->note()->note())
                                + ((diamond_size-2.0) / 4.0);
-                       
+
                        chit->set_height (diamond_size);
                        chit->move (x - chit->x1(), y - chit->y1());
                        chit->show ();
@@ -1071,7 +1083,7 @@ MidiRegionView::add_ghost (TimeAxisView& tv)
                }
        }
 
-       ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
+       GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
 
        return ghost;
 }
@@ -1136,23 +1148,23 @@ MidiRegionView::extend_active_notes()
        }
 }
 
-void 
+void
 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
 {
-       if (!trackview.editor().sound_notes()) {
+       if (no_sound_notes || !trackview.editor().sound_notes()) {
                return;
        }
 
        RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
        assert(route_ui);
-       
+
        route_ui->midi_track()->write_immediate_event(
                        note->on_event().size(), note->on_event().buffer());
-       
+
        const double note_length_beats = (note->off_event().time() - note->on_event().time());
        nframes_t note_length_ms = beats_to_frames(note_length_beats)
-                       * (1000 / (double)route_ui->session().nominal_frame_rate());
-       Glib::signal_timeout().connect(bind(mem_fun(this, &MidiRegionView::play_midi_note_off), note),
+                       * (1000 / (double)route_ui->session()->nominal_frame_rate());
+       Glib::signal_timeout().connect(sigc::bind(sigc::mem_fun(this, &MidiRegionView::play_midi_note_off), note),
                        note_length_ms, G_PRIORITY_DEFAULT);
 }
 
@@ -1161,7 +1173,7 @@ MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
 {
        RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
        assert(route_ui);
-       
+
        route_ui->midi_track()->write_immediate_event(
                        note->off_event().size(), note->off_event().buffer());
 
@@ -1173,7 +1185,7 @@ MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, boo
 {
        const nframes64_t note_start_frames = beats_to_frames(note->time());
 
-       bool outside = (note_start_frames - _region->start() >= _region->length()) || 
+       bool outside = (note_start_frames - _region->start() >= _region->length()) ||
                (note_start_frames < _region->start());
 
        visible = (note->note() >= midi_stream_view()->lowest_note()) &&
@@ -1192,7 +1204,7 @@ MidiRegionView::update_note (CanvasNote* ev)
 
        const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
        const double y1 = midi_stream_view()->note_to_y(note->note());
-       const double note_endpixel = 
+       const double note_endpixel =
                trackview.editor().frame_to_pixel(note_end_frames - _region->start());
 
        ev->property_x1() = x;
@@ -1203,7 +1215,7 @@ MidiRegionView::update_note (CanvasNote* ev)
                ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
        }
        ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
-       
+
        if (note->length() == 0) {
                if (_active_notes) {
                        assert(note->note() < 128);
@@ -1235,7 +1247,7 @@ MidiRegionView::update_hit (CanvasHit* ev)
        const double diamond_size = midi_stream_view()->note_height() / 2.0;
        const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
 
-       ev->move_event (x, y);
+       ev->move_to (x, y);
 }
 
 /** Add a MIDI note to the view (with length).
@@ -1248,14 +1260,14 @@ void
 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
 {
        CanvasNoteEvent* event = 0;
-       
+
        assert(note->time() >= 0);
        assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
 
        ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 
        if (midi_view()->note_mode() == Sustained) {
-               
+
                CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
 
                update_note (ev_rect);
@@ -1287,7 +1299,7 @@ MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
        if (event) {
                if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
                        note_selected(event, true);
-               } 
+               }
 
                if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
                        event->show_velocity();
@@ -1304,11 +1316,11 @@ MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
 }
 
 void
-MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity, 
+MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
                          Evoral::MusicalTime pos, Evoral::MusicalTime len)
 {
        boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
-       
+
        start_delta_command (_("step add"));
        delta_add_note (new_note, true, false);
        apply_delta();
@@ -1329,28 +1341,28 @@ void
 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
 {
        assert(program.time >= 0);
-       
+
        ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
        const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
-       
+
        double height = midi_stream_view()->contents_height();
-       
+
        boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
                        new CanvasProgramChange(*this, *group,
-                                       displaytext, 
-                                       height, 
-                                       x, 1.0, 
-                                       _model_name, 
-                                       _custom_device_mode, 
+                                       displaytext,
+                                       height,
+                                       x, 1.0,
+                                       _model_name,
+                                       _custom_device_mode,
                                        program.time, program.channel, program.value));
-       
+
        // Show unless program change is beyond the region bounds
        if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
                pgm_change->hide();
        } else {
                pgm_change->show();
        }
-       
+
        _pgm_changes.push_back(pgm_change);
 }
 
@@ -1373,7 +1385,7 @@ MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::Patch
                lsb = lsb_control->get_float(true, time);
                cerr << " got lsb " << lsb;
        }
-       
+
        Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
        boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
        float program_number = -1.0;
@@ -1381,7 +1393,7 @@ MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::Patch
                program_number = program_control->get_float(true, time);
                cerr << " got program " << program_number << endl;
        }
-       
+
        key.msb = (int) floor(msb + 0.5);
        key.lsb = (int) floor(lsb + 0.5);
        key.program_number = (int) floor(program_number + 0.5);
@@ -1389,7 +1401,7 @@ MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::Patch
 }
 
 
-void 
+void
 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
 {
        // TODO: Get the real event here and alter them at the original times
@@ -1405,13 +1417,13 @@ MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::Pat
        if (lsb_control != 0) {
                lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
        }
-       
+
        Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
        boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
-       
+
        assert(program_control != 0);
        program_control->set_float(float(new_patch.program_number), true, old_program.time);
-       
+
        redisplay_model();
 }
 
@@ -1422,37 +1434,37 @@ MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name:
        alter_program_change(program_change_event, new_patch);
 }
 
-void 
+void
 MidiRegionView::previous_program(CanvasProgramChange& program)
 {
        MIDI::Name::PatchPrimaryKey key;
        get_patch_key_at(program.event_time(), program.channel(), key);
-       
-       boost::shared_ptr<MIDI::Name::Patch> patch = 
+
+       boost::shared_ptr<MIDI::Name::Patch> patch =
                MIDI::Name::MidiPatchManager::instance().previous_patch(
                                _model_name,
-                               _custom_device_mode, 
-                               program.channel(), 
+                               _custom_device_mode,
+                               program.channel(),
                                key);
-       
+
        PCEvent program_change_event(program.event_time(), program.program(), program.channel());
        if (patch) {
                alter_program_change(program_change_event, patch->patch_primary_key());
        }
 }
 
-void 
+void
 MidiRegionView::next_program(CanvasProgramChange& program)
 {
        MIDI::Name::PatchPrimaryKey key;
        get_patch_key_at(program.event_time(), program.channel(), key);
-       
-       boost::shared_ptr<MIDI::Name::Patch> patch = 
+
+       boost::shared_ptr<MIDI::Name::Patch> patch =
                MIDI::Name::MidiPatchManager::instance().next_patch(
                                _model_name,
-                               _custom_device_mode, 
-                               program.channel(), 
-                               key);   
+                               _custom_device_mode,
+                               program.channel(),
+                               key);
 
        PCEvent program_change_event(program.event_time(), program.program(), program.channel());
        if (patch) {
@@ -1522,6 +1534,91 @@ MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
        }
 }
 
+void
+MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
+{
+       uint8_t low_note = 127;
+       uint8_t high_note = 0;
+       MidiModel::Notes& notes (_model->notes());
+       _optimization_iterator = _events.begin();
+
+       if (extend && _selection.empty()) {
+               extend = false;
+       }
+
+       if (extend) {
+
+               /* scan existing selection to get note range */
+
+               for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
+                       if ((*i)->note()->note() < low_note) {
+                               low_note = (*i)->note()->note();
+                       }
+                       if ((*i)->note()->note() > high_note) {
+                               high_note = (*i)->note()->note();
+                       }
+               }
+
+               low_note = min (low_note, notenum);
+               high_note = max (high_note, notenum);
+       }
+
+       no_sound_notes = true;
+
+       for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
+
+               boost::shared_ptr<NoteType> note (*n);
+               CanvasNoteEvent* cne;
+               bool select = false;
+
+               if (((0x0001 << note->channel()) & channel_mask) != 0) {
+                       if (extend) {
+                               if ((note->note() >= low_note && note->note() <= high_note)) {
+                                       select = true;
+                               }
+                       } else if (note->note() == notenum) {
+                               select = true;
+                       }
+               }
+
+               if (select) {
+                       if ((cne = find_canvas_note (note)) != 0) {
+                               // extend is false because we've taken care of it, 
+                               // since it extends by time range, not pitch.
+                               note_selected (cne, add, false);
+                       }
+               }
+               
+               add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
+
+       }
+
+       no_sound_notes = false;
+}
+
+void
+MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
+{
+       MidiModel::Notes& notes (_model->notes());
+       _optimization_iterator = _events.begin();
+
+       for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
+
+               boost::shared_ptr<NoteType> note (*n);
+               CanvasNoteEvent* cne;
+
+               if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
+                       if ((cne = find_canvas_note (note)) != 0) {
+                               if (cne->selected()) {
+                                       note_deselected (cne);
+                               } else {
+                                       note_selected (cne, true, false);
+                               }
+                       }
+               }
+       }
+}
+
 void
 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
 {
@@ -1544,7 +1641,7 @@ MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool
                for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
                        if ((*i)->note()->end_time() > latest) {
                                latest = (*i)->note()->end_time();
-                       } 
+                       }
                        if ((*i)->note()->time() < earliest) {
                                earliest = (*i)->note()->time();
                        }
@@ -1557,21 +1654,21 @@ MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool
                if (ev->note()->time() < earliest) {
                        earliest = ev->note()->time();
                }
-               
-               for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {           
-                       
+
+               for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
+
                        /* find notes entirely within OR spanning the earliest..latest range */
-                       
+
                        if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
                            ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
                                add_to_selection (*i);
-                       }                       
+                       }
 
 #if 0
                        /* if events were guaranteed to be time sorted, we could do this.
                           but as of sept 10th 2009, they no longer are.
                        */
-                       
+
                        if ((*i)->note()->time() > latest) {
                                break;
                        }
@@ -1604,7 +1701,7 @@ MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2
        for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 
                /* check if any corner of the note is inside the rect
-                  
+
                   Notes:
                     1) this is computing "touched by", not "contained by" the rect.
                     2) this does not require that events be sorted in time.
@@ -1642,7 +1739,7 @@ MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
 
        ev->selected (false);
        ev->hide_velocity ();
-       
+
        if (_selection.empty()) {
                PublicEditor& editor (trackview.editor());
                editor.get_selection().remove (this);
@@ -1659,6 +1756,7 @@ MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
        }
 
        if (_selection.insert (ev).second) {
+                cerr << "Added CNE to selection, size now " << _selection.size() << endl;
                ev->selected (true);
                play_midi_note ((ev)->note());
        }
@@ -1678,7 +1776,7 @@ MidiRegionView::move_selection(double dx, double dy)
 }
 
 void
-MidiRegionView::note_dropped(CanvasNoteEvent* ev, double dt, int8_t dnote)
+MidiRegionView::note_dropped(CanvasNoteEvent *, double dt, int8_t dnote)
 {
        assert (!_selection.empty());
 
@@ -1696,19 +1794,19 @@ MidiRegionView::note_dropped(CanvasNoteEvent* ev, double dt, int8_t dnote)
 
        /*
        cerr << "dnote: " << (int) dnote << endl;
-       cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note()) 
+       cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
             << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
-       cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): " 
+       cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
             << int(highest_note_in_selection) << endl;
        cerr << "selection size: " << _selection.size() << endl;
        cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
        */
 
        // Make sure the note pitch does not exceed the MIDI standard range
-       if (dnote <= 127 && (highest_note_in_selection + dnote > 127)) {
+       if (highest_note_in_selection + dnote > 127) {
                highest_note_difference = highest_note_in_selection - 127;
        }
-       
+
        start_diff_command(_("move notes"));
 
        for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
@@ -1734,7 +1832,7 @@ MidiRegionView::note_dropped(CanvasNoteEvent* ev, double dt, int8_t dnote)
 
                // keep notes in standard midi range
                clamp_to_0_127(new_pitch);
-               
+
                // keep original pitch if note is dragged outside valid midi range
                if ((original_pitch != 0 && new_pitch == 0)
                                || (original_pitch != 127 && new_pitch == 127)) {
@@ -1748,7 +1846,7 @@ MidiRegionView::note_dropped(CanvasNoteEvent* ev, double dt, int8_t dnote)
        }
 
        apply_diff();
-       
+
        // care about notes being moved beyond the upper/lower bounds on the canvas
        if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
            highest_note_in_selection > midi_stream_view()->highest_note()) {
@@ -1871,7 +1969,7 @@ MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
                                current_x = delta_x - get_end_position_pixels ();
                        }
                }
-               
+
                if (at_front) {
                        resize_rect->property_x1() = snap_to_pixel(current_x);
                        resize_rect->property_x2() = canvas_note->x2();
@@ -1908,7 +2006,7 @@ MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
                                current_x = region_start + delta_x;
                        }
                }
-               
+
                current_x = snap_pixel_to_frame (current_x);
                current_x = frames_to_beats (current_x);
 
@@ -2008,11 +2106,11 @@ MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_del
                } else {
 
                        Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
-                       
+
                        if (new_pos < event->note()->end_time()) {
                                new_start = event->note()->time() + front_delta;
                                /* start moved toward the end, so move the end point back to where it used to be */
-                               new_length = event->note()->length() - front_delta; 
+                               new_length = event->note()->length() - front_delta;
                                change_start = true;
                                change_length = true;
                        }
@@ -2026,7 +2124,7 @@ MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_del
                        if (event->note()->length() < -end_delta) {
                                can_change = false;
                        }
-               } 
+               }
 
                if (can_change) {
                        new_length = event->note()->length() + end_delta;
@@ -2054,7 +2152,7 @@ MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime de
                                new_time = 0;
                        } else {
                                new_time = event->note()->time() + delta;
-                       } 
+                       }
                } else {
                        new_time = event->note()->time() + delta;
                }
@@ -2093,14 +2191,14 @@ MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
        }
 
        start_diff_command(_("change velocities"));
-       
+
        for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
                Selection::iterator next = i;
                ++next;
                change_note_velocity (*i, delta, true);
                i = next;
        }
-       
+
        apply_diff();
 }
 
@@ -2113,7 +2211,7 @@ MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
        }
 
        int8_t delta;
-       
+
        if (fine) {
                delta = 1;
        } else {
@@ -2171,13 +2269,13 @@ MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool e
        if (shorter) {
                delta = -delta;
        }
-       
+
        start_diff_command (_("change note lengths"));
 
        for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
                Selection::iterator next = i;
                ++next;
-               
+
                /* note the negation of the delta for start */
 
                trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
@@ -2195,8 +2293,8 @@ MidiRegionView::nudge_notes (bool forward)
                return;
        }
 
-       /* pick a note as the point along the timeline to get the nudge distance. 
-          its not necessarily the earliest note, so we may want to pull the notes out 
+       /* pick a note as the point along the timeline to get the nudge distance.
+          its not necessarily the earliest note, so we may want to pull the notes out
           into a vector and sort before using the first one.
        */
 
@@ -2204,28 +2302,34 @@ MidiRegionView::nudge_notes (bool forward)
        nframes64_t unused;
        nframes64_t distance;
 
-       if ((distance = trackview.editor().get_nudge_distance (ref_point, unused)) == 0) {
+       if (trackview.editor().snap_mode() == Editing::SnapOff) {
+               
+               /* grid is off - use nudge distance */
+
+               distance = trackview.editor().get_nudge_distance (ref_point, unused);
 
-               /* no nudge distance set - use grid */
+       } else {
+
+               /* use grid */
 
                nframes64_t next_pos = ref_point;
-               
+
                if (forward) {
                        /* XXX need check on max_frames, but that needs max_frames64 or something */
                        next_pos += 1;
-               } else { 
+               } else {
                        if (next_pos == 0) {
                                return;
                        }
                        next_pos -= 1;
                }
-               
+
                cerr << "ref point was " << ref_point << " next was " << next_pos;
                trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
                distance = ref_point - next_pos;
                cerr << " final is " << next_pos << " distance = " << distance << endl;
-       } 
-               
+       }
+
        if (distance == 0) {
                return;
        }
@@ -2266,11 +2370,12 @@ MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
                note_selected(ev, true);
        }
 
-       PublicEditor& editor (trackview.editor());
        char buf[4];
        snprintf (buf, sizeof (buf), "%d", (int) ev->note()->note());
+       // This causes an infinite loop on note add sometimes
+       //PublicEditor& editor (trackview.editor());
        //editor.show_verbose_canvas_cursor_with (Evoral::midi_note_name (ev->note()->note()));
-       editor.show_verbose_canvas_cursor_with (buf);
+       //editor.show_verbose_canvas_cursor_with (buf);
 }
 
 void
@@ -2279,7 +2384,7 @@ MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
        PublicEditor& editor (trackview.editor());
        editor.hide_verbose_canvas_cursor ();
 }
-       
+
 
 void
 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
@@ -2301,7 +2406,7 @@ MidiRegionView::set_frame_color()
        }
 }
 
-void 
+void
 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
 {
        switch (mode) {
@@ -2322,7 +2427,7 @@ MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
        _last_channel_selection = mask;
 }
 
-void 
+void
 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
 {
        _model_name         = model;
@@ -2347,7 +2452,7 @@ MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
        default:
                break;
        }
-               
+
        start_delta_command();
 
        for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
@@ -2368,20 +2473,19 @@ MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
 MidiCutBuffer*
 MidiRegionView::selection_as_cut_buffer () const
 {
-       NoteList notes;
+       Notes notes;
+
+        cerr << "Convert selection of " << _selection.size() << " into a cut buffer\n";
 
        for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
-               notes.push_back (boost::shared_ptr<NoteType> (new NoteType (*((*i)->note().get()))));
+                NoteType* n = (*i)->note().get();
+                cerr << "CNE's note is " << n << endl;
+               notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
        }
 
-       /* sort them into time order */
-
-       Evoral::Sequence<Evoral::MusicalTime>::LaterNoteComparator cmp;
-       sort (notes.begin(), notes.end(),  cmp);
-
        MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
        cb->set (notes);
-       
+
        return cb;
 }
 
@@ -2399,17 +2503,17 @@ MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
        Evoral::MusicalTime duration;
        Evoral::MusicalTime end_point;
 
-       duration = mcb.notes().back()->end_time() - mcb.notes().front()->time();
+       duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
        paste_pos_beats = frames_to_beats (pos - _region->position());
-       beat_delta = mcb.notes().front()->time() - paste_pos_beats;
+       beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
        paste_pos_beats = 0;
 
        _selection.clear ();
 
        for (int n = 0; n < (int) times; ++n) {
 
-               for (NoteList::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
-                       
+               for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
+
                        boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
                        copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
 
@@ -2429,13 +2533,13 @@ MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
 
        if (end_frame > region_end) {
 
-               trackview.session().begin_reversible_command (_("paste"));
+               trackview.session()->begin_reversible_command (_("paste"));
 
-               XMLNode& before (_region->get_state());
+                _region->clear_history ();
                _region->set_length (end_frame, this);
-               trackview.session().add_command (new MementoCommand<Region>(*_region, &before, &_region->get_state()));
+               trackview.session()->add_command (new StatefulDiffCommand (_region));
        }
-       
+
        apply_delta ();
 }
 
@@ -2484,7 +2588,7 @@ MidiRegionView::goto_next_note ()
        /* use the first one */
 
        unique_select (_events.front());
-       
+
 }
 
 void
@@ -2516,15 +2620,13 @@ MidiRegionView::goto_previous_note ()
 }
 
 void
-MidiRegionView::selection_as_notelist (NoteList& selected) 
+MidiRegionView::selection_as_notelist (Notes& selected)
 {
        time_sort_events ();
 
        for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
                if ((*i)->selected()) {
-                       selected.push_back ((*i)->note());
+                       selected.insert ((*i)->note());
                }
        }
 }
-
-