add VU and IEC meter DSP (from jmeters)
[ardour.git] / gtk2_ardour / midi_region_view.cc
index 554dcc9b9e2fc999649b26c4efff73da1c80c997..d681bb43deceb32b4bb74c8e94fd8b5bed5d7aa5 100644 (file)
 */
 
 #include <cmath>
-#include <cassert>
 #include <algorithm>
 #include <ostream>
 
 #include <gtkmm.h>
 
-#include <gtkmm2ext/gtk_ui.h>
+#include "gtkmm2ext/gtk_ui.h"
 
 #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_model.h"
 #include "ardour/midi_patch_manager.h"
+#include "ardour/midi_region.h"
+#include "ardour/midi_source.h"
+#include "ardour/midi_track.h"
 #include "ardour/session.h"
 
 #include "evoral/Parameter.hpp"
 #include "evoral/Control.hpp"
 #include "evoral/midi_util.h"
 
+#include "canvas/debug.h"
+
 #include "automation_region_view.h"
 #include "automation_time_axis.h"
-#include "canvas-hit.h"
-#include "canvas-note.h"
-#include "canvas_patch_change.h"
 #include "debug.h"
 #include "editor.h"
 #include "editor_drag.h"
 #include "midi_streamview.h"
 #include "midi_time_axis.h"
 #include "midi_util.h"
+#include "midi_velocity_dialog.h"
+#include "mouse_cursors.h"
 #include "note_player.h"
 #include "public_editor.h"
+#include "route_time_axis.h"
 #include "rgb_macros.h"
 #include "selection.h"
-#include "simpleline.h"
 #include "streamview.h"
 #include "utils.h"
-#include "mouse_cursors.h"
 #include "patch_change_dialog.h"
 #include "verbose_cursor.h"
+#include "ardour_ui.h"
+#include "note.h"
+#include "hit.h"
+#include "patch_change.h"
+#include "sys_ex.h"
 
 #include "i18n.h"
 
 using namespace ARDOUR;
 using namespace PBD;
 using namespace Editing;
-using namespace ArdourCanvas;
 using Gtkmm2ext::Keyboard;
 
 PBD::Signal1<void, MidiRegionView *> MidiRegionView::SelectionCleared;
@@ -89,12 +91,10 @@ PBD::Signal1<void, MidiRegionView *> MidiRegionView::SelectionCleared;
 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
                                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
        : RegionView (parent, tv, r, spu, basic_color)
-       , _force_channel(-1)
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
-       , _note_group(new ArdourCanvas::Group(*group))
+       , _note_group (new ArdourCanvas::Group (group))
        , _note_diff_command (0)
        , _ghost_note(0)
        , _step_edit_cursor (0)
@@ -110,27 +110,28 @@ MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &
        , _no_sound_notes (false)
        , _last_event_x (0)
        , _last_event_y (0)
-       , _pre_enter_cursor (0)
+       , pre_enter_cursor (0)
+       , pre_press_cursor (0)
+       , _note_player (0)
 {
+       CANVAS_DEBUG_NAME (_note_group, string_compose ("note group for %1", get_item_name()));
        _note_group->raise_to_top();
        PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 
-       Config->ParameterChanged.connect (*this, invalidator (*this), ui_bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
+       Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
        connect_to_diskstream ();
 
-       SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), ui_bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
+       SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), boost::bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
 }
 
 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
                                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
                                 TimeAxisViewItem::Visibility visibility)
        : RegionView (parent, tv, r, spu, basic_color, false, visibility)
-       , _force_channel(-1)
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
-       , _note_group(new ArdourCanvas::Group(*parent))
+       , _note_group (new ArdourCanvas::Group (parent))
        , _note_diff_command (0)
        , _ghost_note(0)
        , _step_edit_cursor (0)
@@ -146,14 +147,18 @@ MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &
        , _no_sound_notes (false)
        , _last_event_x (0)
        , _last_event_y (0)
-       , _pre_enter_cursor (0)
+       , pre_enter_cursor (0)
+       , pre_press_cursor (0)
+       , _note_player (0)
 {
+       CANVAS_DEBUG_NAME (_note_group, string_compose ("note group for %1", get_item_name()));
        _note_group->raise_to_top();
+
        PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 
        connect_to_diskstream ();
 
-       SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), ui_bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
+       SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), boost::bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
 }
 
 void
@@ -169,12 +174,10 @@ MidiRegionView::parameter_changed (std::string const & p)
 MidiRegionView::MidiRegionView (const MidiRegionView& other)
        : sigc::trackable(other)
        , RegionView (other)
-       , _force_channel(-1)
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
-       , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
+       , _note_group (new ArdourCanvas::Group (get_canvas_group()))
        , _note_diff_command (0)
        , _ghost_note(0)
        , _step_edit_cursor (0)
@@ -190,7 +193,9 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other)
        , _no_sound_notes (false)
        , _last_event_x (0)
        , _last_event_y (0)
-       , _pre_enter_cursor (0)
+       , pre_enter_cursor (0)
+       , pre_press_cursor (0)
+       , _note_player (0)
 {
        Gdk::Color c;
        int r,g,b,a;
@@ -203,12 +208,10 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other)
 
 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
        : RegionView (other, boost::shared_ptr<Region> (region))
-       , _force_channel(-1)
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
-       , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
+       , _note_group (new ArdourCanvas::Group (get_canvas_group()))
        , _note_diff_command (0)
        , _ghost_note(0)
        , _step_edit_cursor (0)
@@ -224,7 +227,9 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<M
        , _no_sound_notes (false)
        , _last_event_x (0)
        , _last_event_y (0)
-       , _pre_enter_cursor (0)
+       , pre_enter_cursor (0)
+       , pre_press_cursor (0)
+       , _note_player (0)
 {
        Gdk::Color c;
        int r,g,b,a;
@@ -240,10 +245,10 @@ MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 {
        PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 
-       CanvasNoteEvent::CanvasNoteEventDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
-                                                        ui_bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
-                                                        gui_context());
-
+       NoteBase::NoteBaseDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
+                                          boost::bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
+                                          gui_context());
+       
        if (wfd) {
                midi_region()->midi_source(0)->load_model();
        }
@@ -262,8 +267,6 @@ MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
        region_resized (ARDOUR::bounds_change);
        region_locked ();
 
-       reset_width_dependent_items (_pixel_width);
-
        set_colors ();
 
        _enable_display = true;
@@ -273,24 +276,32 @@ MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
                }
        }
 
+       reset_width_dependent_items (_pixel_width);
+
        group->raise_to_top();
-       group->signal_event().connect(
-               sigc::mem_fun(this, &MidiRegionView::canvas_event), false);
 
-       midi_view()->signal_channel_mode_changed().connect(
-               sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
+       midi_view()->midi_track()->PlaybackChannelModeChanged.connect (_channel_mode_changed_connection, invalidator (*this),
+                                                                      boost::bind (&MidiRegionView::midi_channel_mode_changed, this),
+                                                                      gui_context ());
 
-       midi_view()->signal_midi_patch_settings_changed().connect(
-               sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
+       instrument_info().Changed.connect (_instrument_changed_connection, invalidator (*this),
+                                          boost::bind (&MidiRegionView::instrument_settings_changed, this), gui_context());
 
        trackview.editor().SnapChanged.connect(snap_changed_connection, invalidator(*this),
-                                              ui_bind(&MidiRegionView::snap_changed, this),
+                                              boost::bind (&MidiRegionView::snap_changed, this),
                                               gui_context());
 
-       Config->ParameterChanged.connect (*this, invalidator (*this), ui_bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
+       Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
        connect_to_diskstream ();
 
-       SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), ui_bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
+       SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), boost::bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
+}
+
+InstrumentInfo&
+MidiRegionView::instrument_info () const
+{
+       RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
+       return route_ui->route()->instrument_info();
 }
 
 const boost::shared_ptr<ARDOUR::MidiRegion>
@@ -304,13 +315,15 @@ MidiRegionView::connect_to_diskstream ()
 {
        midi_view()->midi_track()->DataRecorded.connect(
                *this, invalidator(*this),
-               ui_bind(&MidiRegionView::data_recorded, this, _1),
+               boost::bind (&MidiRegionView::data_recorded, this, _1),
                gui_context());
 }
 
 bool
-MidiRegionView::canvas_event(GdkEvent* ev)
+MidiRegionView::canvas_group_event(GdkEvent* ev)
 {
+       bool r;
+
        switch (ev->type) {
        case GDK_ENTER_NOTIFY:
        case GDK_LEAVE_NOTIFY:
@@ -325,7 +338,19 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                break;
        }
 
-       if (!trackview.editor().internal_editing()) {
+       if (ev->type == GDK_2BUTTON_PRESS) {
+               // cannot use double-click to exit internal mode if single-click is being used
+               MouseMode m = trackview.editor().current_mouse_mode();
+
+               if ((m != MouseObject || !Keyboard::modifier_state_contains (ev->button.state, Keyboard::insert_note_modifier())) && (m != MouseDraw)) {
+                       return trackview.editor().toggle_internal_editing_from_double_click (ev);
+               }
+       }
+
+       if ((!trackview.editor().internal_editing() && trackview.editor().current_mouse_mode() != MouseGain) ||
+               (trackview.editor().current_mouse_mode() == MouseTimeFX) ||
+               (trackview.editor().current_mouse_mode() == MouseZoom)) {
+               // handle non-draw modes elsewhere
                return false;
        }
 
@@ -342,11 +367,11 @@ MidiRegionView::canvas_event(GdkEvent* ev)
        case GDK_BUTTON_PRESS:
                return button_press (&ev->button);
 
-       case GDK_2BUTTON_PRESS:
-               return false;
-
        case GDK_BUTTON_RELEASE:
-               return button_release (&ev->button);
+               r = button_release (&ev->button);
+               delete _note_player;
+               _note_player = 0;
+               return r;
 
        case GDK_ENTER_NOTIFY:
                return enter_notify (&ev->crossing);
@@ -361,7 +386,7 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                break;
        }
 
-       return false;
+       return trackview.editor().canvas_region_view_event (ev, group, this);
 }
 
 void
@@ -375,10 +400,10 @@ bool
 MidiRegionView::enter_notify (GdkEventCrossing* ev)
 {
        trackview.editor().MouseModeChanged.connect (
-               _mouse_mode_connection, invalidator (*this), ui_bind (&MidiRegionView::mouse_mode_changed, this), gui_context ()
+               _mouse_mode_connection, invalidator (*this), boost::bind (&MidiRegionView::mouse_mode_changed, this), gui_context ()
                );
 
-       if (trackview.editor().current_mouse_mode() == MouseRange && _mouse_state != AddDragging) {
+       if (trackview.editor().current_mouse_mode() == MouseDraw && _mouse_state != AddDragging) {
                create_ghost_note (ev->x, ev->y);
        }
 
@@ -389,6 +414,13 @@ MidiRegionView::enter_notify (GdkEventCrossing* ev)
                group->grab_focus();
        }
 
+       // if current operation is non-operational in a midi region, change the cursor to so indicate
+       if (trackview.editor().current_mouse_mode() == MouseGain) {
+               Editor* editor = dynamic_cast<Editor *> (&trackview.editor());
+               pre_enter_cursor = editor->get_canvas_cursor();
+               editor->set_canvas_cursor(editor->cursors()->timebar);
+       }
+
        return false;
 }
 
@@ -400,13 +432,18 @@ MidiRegionView::leave_notify (GdkEventCrossing*)
        trackview.editor().verbose_cursor()->hide ();
        remove_ghost_note ();
 
+       if (pre_enter_cursor) {
+               Editor* editor = dynamic_cast<Editor *> (&trackview.editor());
+               editor->set_canvas_cursor(pre_enter_cursor);
+       }
+
        return false;
 }
 
 void
 MidiRegionView::mouse_mode_changed ()
 {
-       if (trackview.editor().current_mouse_mode() == MouseRange && trackview.editor().internal_editing()) {
+       if (trackview.editor().current_mouse_mode() == MouseDraw && trackview.editor().internal_editing()) {
                create_ghost_note (_last_event_x, _last_event_y);
        } else {
                remove_ghost_note ();
@@ -428,11 +465,19 @@ MidiRegionView::button_press (GdkEventButton* ev)
                return false;
        }
 
-       if (_mouse_state != SelectTouchDragging) {
+       Editor* editor = dynamic_cast<Editor *> (&trackview.editor());
+       MouseMode m = editor->current_mouse_mode();
+
+       if (m == MouseObject && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
+               pre_press_cursor = editor->get_canvas_cursor ();
+               editor->set_canvas_cursor (editor->cursors()->midi_pencil);
+       } 
 
+       if (_mouse_state != SelectTouchDragging) {
+               
                _pressed_button = ev->button;
                _mouse_state = Pressed;
-
+               
                return true;
        }
 
@@ -453,15 +498,25 @@ MidiRegionView::button_release (GdkEventButton* ev)
        event_x = ev->x;
        event_y = ev->y;
 
-       group->w2i(event_x, event_y);
-       group->ungrab(ev->time);
+       group->canvas_to_item (event_x, event_y);
+       group->ungrab ();
 
        PublicEditor& editor = trackview.editor ();
 
+       if (pre_press_cursor) {
+               dynamic_cast<Editor*>(&editor)->set_canvas_cursor (pre_press_cursor, false);
+               pre_press_cursor = 0;
+       }
+
        switch (_mouse_state) {
        case Pressed: // Clicked
 
                switch (editor.current_mouse_mode()) {
+               case MouseRange:
+                       /* no motion occured - simple click */
+                       clear_selection ();
+                       break;
+
                case MouseObject:
                case MouseTimeFX:
                        {
@@ -473,10 +528,10 @@ MidiRegionView::button_release (GdkEventButton* ev)
 
                                        event_x = ev->x;
                                        event_y = ev->y;
-                                       group->w2i(event_x, event_y);
+                                       group->canvas_to_item (event_x, event_y);
 
                                        bool success;
-                                       Evoral::MusicalTime beats = editor.get_grid_type_as_beats (success, editor.pixel_to_frame (event_x));
+                                       Evoral::MusicalTime beats = editor.get_grid_type_as_beats (success, editor.pixel_to_sample (event_x));
 
                                        if (!success) {
                                                beats = 1;
@@ -487,15 +542,15 @@ MidiRegionView::button_release (GdkEventButton* ev)
                                        */
                                        beats -= 1.0 / Timecode::BBT_Time::ticks_per_beat;
 
-                                       create_note_at (editor.pixel_to_frame (event_x), event_y, beats, true);
+                                       create_note_at (editor.pixel_to_sample (event_x), event_y, beats, true);
                                }
 
                                break;
                        }
-               case MouseRange:
+               case MouseDraw:
                        {
                                bool success;
-                               Evoral::MusicalTime beats = editor.get_grid_type_as_beats (success, editor.pixel_to_frame (event_x));
+                               Evoral::MusicalTime beats = editor.get_grid_type_as_beats (success, editor.pixel_to_sample (event_x));
 
                                if (!success) {
                                        beats = 1;
@@ -506,7 +561,7 @@ MidiRegionView::button_release (GdkEventButton* ev)
                                */
                                beats -= 1.0 / Timecode::BBT_Time::ticks_per_beat;
                                
-                               create_note_at (editor.pixel_to_frame (event_x), event_y, beats, true);
+                               create_note_at (editor.pixel_to_sample (event_x), event_y, beats, true);
 
                                break;
                        }
@@ -537,21 +592,24 @@ MidiRegionView::motion (GdkEventMotion* ev)
 {
        PublicEditor& editor = trackview.editor ();
 
-       if (!_ghost_note && editor.current_mouse_mode() != MouseRange
-           && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())
-           && _mouse_state != AddDragging) {
+       if (!_ghost_note && editor.current_mouse_mode() == MouseObject &&
+           Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier()) &&
+           _mouse_state != AddDragging) {
 
                create_ghost_note (ev->x, ev->y);
-       } else if (_ghost_note && editor.current_mouse_mode() != MouseRange
-                  && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
+
+       } else if (_ghost_note && editor.current_mouse_mode() == MouseObject &&
+                  Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 
                update_ghost_note (ev->x, ev->y);
-       } else if (_ghost_note && editor.current_mouse_mode() != MouseRange) {
 
-               remove_ghost_note ();
+       } else if (_ghost_note && editor.current_mouse_mode() == MouseObject) {
 
+               remove_ghost_note ();
                editor.verbose_cursor()->hide ();
-       } else if (_ghost_note && editor.current_mouse_mode() == MouseRange) {
+
+       } else if (_ghost_note && editor.current_mouse_mode() == MouseDraw) {
+
                update_ghost_note (ev->x, ev->y);
        }
 
@@ -564,28 +622,32 @@ MidiRegionView::motion (GdkEventMotion* ev)
        switch (_mouse_state) {
        case Pressed:
 
-               if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject
-                   && !Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
-
-                       editor.drags()->set (new MidiRubberbandSelectDrag (dynamic_cast<Editor *> (&editor), this), (GdkEvent *) ev);
-                       _mouse_state = SelectRectDragging;
-                       return true;
-
-               } else if (editor.internal_editing()) {
-
-                       editor.drags()->set (new NoteCreateDrag (dynamic_cast<Editor *> (&editor), group, this), (GdkEvent *) ev);
-                       _mouse_state = AddDragging;
-
-                       remove_ghost_note ();
-
-                       editor.verbose_cursor()->hide ();
-
-                       return true;
+               if (_pressed_button == 1) {
+                       
+                       MouseMode m = editor.current_mouse_mode();
+                       
+                       if (m == MouseDraw || (m == MouseObject && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier()))) {
+                               editor.drags()->set (new NoteCreateDrag (dynamic_cast<Editor *> (&editor), group, this), (GdkEvent *) ev);
+                               _mouse_state = AddDragging;
+                               remove_ghost_note ();
+                               editor.verbose_cursor()->hide ();
+                               return true;
+                       } else if (m == MouseObject) {
+                               editor.drags()->set (new MidiRubberbandSelectDrag (dynamic_cast<Editor *> (&editor), this), (GdkEvent *) ev);
+                               clear_selection ();
+                               _mouse_state = SelectRectDragging;
+                               return true;
+                       } else if (m == MouseRange) {
+                               editor.drags()->set (new MidiVerticalSelectDrag (dynamic_cast<Editor *> (&editor), this), (GdkEvent *) ev);
+                               _mouse_state = SelectVerticalDragging;
+                               return true;
+                       }
                }
 
                return false;
 
        case SelectRectDragging:
+       case SelectVerticalDragging:
        case AddDragging:
                editor.drags()->motion_handler ((GdkEvent *) ev, false);
                break;
@@ -617,13 +679,18 @@ MidiRegionView::scroll (GdkEventScroll* ev)
 
        trackview.editor().verbose_cursor()->hide ();
 
-       bool fine = !Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier);
+       bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
+       bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 
        if (ev->direction == GDK_SCROLL_UP) {
-               change_velocities (true, fine, false);
+               change_velocities (true, fine, false, together);
        } else if (ev->direction == GDK_SCROLL_DOWN) {
-               change_velocities (false, fine, false);
+               change_velocities (false, fine, false, together);
+       } else {
+               /* left, right: we don't use them */
+               return false;
        }
+
        return true;
 }
 
@@ -656,7 +723,11 @@ MidiRegionView::key_press (GdkEventKey* ev)
 
                return true;
 
-       } else if (ev->keyval == GDK_Delete && unmodified) {
+       } else if ((ev->keyval == GDK_BackSpace || ev->keyval == GDK_Delete) && unmodified) {
+
+               if (_selection.empty()) {
+                       return false;
+               }
 
                delete_selection();
                return true;
@@ -687,9 +758,10 @@ MidiRegionView::key_press (GdkEventKey* ev)
 
                bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
                bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
+               bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::Level4Modifier);
 
                if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
-                       change_velocities (true, fine, allow_smush);
+                       change_velocities (true, fine, allow_smush, together);
                } else {
                        transpose (true, fine, allow_smush);
                }
@@ -699,9 +771,10 @@ MidiRegionView::key_press (GdkEventKey* ev)
 
                bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
                bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
+               bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::Level4Modifier);
 
                if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
-                       change_velocities (false, fine, allow_smush);
+                       change_velocities (false, fine, allow_smush, together);
                } else {
                        transpose (false, fine, allow_smush);
                }
@@ -720,6 +793,10 @@ MidiRegionView::key_press (GdkEventKey* ev)
        } else if (ev->keyval == GDK_c && unmodified) {
                channel_edit ();
                return true;
+
+       } else if (ev->keyval == GDK_v && unmodified) {
+               velocity_edit ();
+               return true;
        }
 
        return false;
@@ -738,20 +815,15 @@ MidiRegionView::key_release (GdkEventKey* ev)
 void
 MidiRegionView::channel_edit ()
 {
-       bool first = true;
-       uint8_t current_channel = 0;
-
        if (_selection.empty()) {
                return;
        }
-       
-       for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
-               if (first) {
-                       current_channel = (*i)->note()->channel ();
-                       first = false;
-               }
-       }
 
+       /* pick a note somewhat at random (since Selection is a set<>) to
+        * provide the "current" channel for the dialog.
+        */
+
+       uint8_t current_channel = (*_selection.begin())->note()->channel ();
        MidiChannelDialog channel_dialog (current_channel);
        int ret = channel_dialog.run ();
 
@@ -776,11 +848,47 @@ MidiRegionView::channel_edit ()
        apply_diff ();
 }
 
+void
+MidiRegionView::velocity_edit ()
+{
+       if (_selection.empty()) {
+               return;
+       }
+       
+       /* pick a note somewhat at random (since Selection is a set<>) to
+        * provide the "current" velocity for the dialog.
+        */
+
+       uint8_t current_velocity = (*_selection.begin())->note()->velocity ();
+       MidiVelocityDialog velocity_dialog (current_velocity);
+       int ret = velocity_dialog.run ();
+
+       switch (ret) {
+       case Gtk::RESPONSE_OK:
+               break;
+       default:
+               return;
+       }
+
+       uint8_t new_velocity = velocity_dialog.velocity ();
+
+       start_note_diff_command (_("velocity edit"));
+
+       for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
+               Selection::iterator next = i;
+               ++next;
+               change_note_velocity (*i, new_velocity, false);
+               i = next;
+       }
+
+       apply_diff ();
+}
+
 void
 MidiRegionView::show_list_editor ()
 {
        if (!_list_editor) {
-               _list_editor = new MidiListEditor (trackview.session(), midi_region());
+               _list_editor = new MidiListEditor (trackview.session(), midi_region(), midi_view()->midi_track());
        }
        _list_editor->present ();
 }
@@ -794,13 +902,14 @@ MidiRegionView::show_list_editor ()
 void
 MidiRegionView::create_note_at (framepos_t t, double y, double length, bool snap_t)
 {
+       if (length < 2 * DBL_EPSILON) {
+               return;
+       }
+
        MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
        MidiStreamView* const view = mtv->midi_view();
 
-       double note = view->y_to_note(y);
-
-       assert(note >= 0.0);
-       assert(note <= 127.0);
+       const double note = view->y_to_note(y);
 
        // Start of note in frames relative to region start
        if (snap_t) {
@@ -808,13 +917,11 @@ MidiRegionView::create_note_at (framepos_t t, double y, double length, bool snap
                t = snap_frame_to_grid_underneath (t, grid_frames);
        }
 
-       assert (t >= 0);
-       assert (length != 0);
-
-       const boost::shared_ptr<NoteType> new_note (new NoteType (mtv->get_channel_for_add (),
-                                                                 region_frames_to_region_beats(t + _region->start()), 
-                                                                 length,
-                                                                 (uint8_t)note, 0x40));
+       const boost::shared_ptr<NoteType> new_note (
+               new NoteType (mtv->get_channel_for_add (),
+                             region_frames_to_region_beats(t + _region->start()), 
+                             length,
+                             (uint8_t)note, 0x40));
 
        if (_model->contains (new_note)) {
                return;
@@ -822,7 +929,7 @@ MidiRegionView::create_note_at (framepos_t t, double y, double length, bool snap
 
        view->update_note_range(new_note->note());
 
-       MidiModel::NoteDiffCommand* cmd = _model->new_note_diff_command("add note");
+       MidiModel::NoteDiffCommand* cmd = _model->new_note_diff_command(_("add note"));
        cmd->add (new_note);
        _model->apply_command(*trackview.session(), cmd);
 
@@ -830,9 +937,9 @@ MidiRegionView::create_note_at (framepos_t t, double y, double length, bool snap
 }
 
 void
-MidiRegionView::clear_events()
+MidiRegionView::clear_events (bool with_selection_signal)
 {
-       clear_selection();
+       clear_selection (with_selection_signal);
 
        MidiGhostRegion* gr;
        for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
@@ -889,7 +996,7 @@ MidiRegionView::note_diff_add_note (const boost::shared_ptr<NoteType> note, bool
 }
 
 void
-MidiRegionView::note_diff_remove_note (ArdourCanvas::CanvasNoteEvent* ev)
+MidiRegionView::note_diff_remove_note (NoteBase* ev)
 {
        if (_note_diff_command && ev->note()) {
                _note_diff_command->remove(ev->note());
@@ -897,7 +1004,7 @@ MidiRegionView::note_diff_remove_note (ArdourCanvas::CanvasNoteEvent* ev)
 }
 
 void
-MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
+MidiRegionView::note_diff_add_change (NoteBase* ev,
                                       MidiModel::NoteDiffCommand::Property property,
                                       uint8_t val)
 {
@@ -907,7 +1014,7 @@ MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 }
 
 void
-MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
+MidiRegionView::note_diff_add_change (NoteBase* ev,
                                       MidiModel::NoteDiffCommand::Property property,
                                       Evoral::MusicalTime val)
 {
@@ -956,7 +1063,7 @@ MidiRegionView::abort_command()
        clear_selection();
 }
 
-CanvasNoteEvent*
+NoteBase*
 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 {
        if (_optimization_iterator != _events.end()) {
@@ -983,7 +1090,7 @@ MidiRegionView::get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::No
        _model->get_notes (notes, op, val, chan_mask);
 
        for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
-               CanvasNoteEvent* cne = find_canvas_note (*n);
+               NoteBase* cne = find_canvas_note (*n);
                if (cne) {
                        e.push_back (cne);
                }
@@ -1011,24 +1118,26 @@ MidiRegionView::redisplay_model()
        MidiModel::Notes& notes (_model->notes());
        _optimization_iterator = _events.begin();
 
+       bool empty_when_starting = !_events.empty();
+
        for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 
                boost::shared_ptr<NoteType> note (*n);
-               CanvasNoteEvent* cne;
+               NoteBase* cne;
                bool visible;
 
                if (note_in_region_range (note, visible)) {
 
-                       if ((cne = find_canvas_note (note)) != 0) {
+                       if (empty_when_starting && (cne = find_canvas_note (note)) != 0) {
 
                                cne->validate ();
 
-                               CanvasNote* cn;
-                               CanvasHit* ch;
+                               Note* cn;
+                               Hit* ch;
 
-                               if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
+                               if ((cn = dynamic_cast<Note*>(cne)) != 0) {
                                        update_note (cn);
-                               } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
+                               } else if ((ch = dynamic_cast<Hit*>(cne)) != 0) {
                                        update_hit (ch);
                                }
 
@@ -1045,7 +1154,7 @@ MidiRegionView::redisplay_model()
 
                } else {
 
-                       if ((cne = find_canvas_note (note)) != 0) {
+                       if (empty_when_starting && (cne = find_canvas_note (note)) != 0) {
                                cne->validate ();
                                cne->hide ();
                        }
@@ -1055,21 +1164,23 @@ MidiRegionView::redisplay_model()
 
        /* remove note items that are no longer valid */
 
-       for (Events::iterator i = _events.begin(); i != _events.end(); ) {
-               if (!(*i)->valid ()) {
-
-                       for (vector<GhostRegion*>::iterator j = ghosts.begin(); j != ghosts.end(); ++j) {
-                               MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*j);
-                               if (gr) {
-                                       gr->remove_note (*i);
+       if (empty_when_starting) {
+               for (Events::iterator i = _events.begin(); i != _events.end(); ) {
+                       if (!(*i)->valid ()) {
+                               
+                               for (vector<GhostRegion*>::iterator j = ghosts.begin(); j != ghosts.end(); ++j) {
+                                       MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*j);
+                                       if (gr) {
+                                               gr->remove_note (*i);
+                                       }
                                }
+                               
+                               delete *i;
+                               i = _events.erase (i);
+                               
+                       } else {
+                               ++i;
                        }
-                       
-                       delete *i;
-                       i = _events.erase (i);
-                       
-               } else {
-                       ++i;
                }
        }
 
@@ -1094,18 +1205,18 @@ void
 MidiRegionView::display_patch_changes ()
 {
        MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
-       uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
+       uint16_t chn_mask = mtv->midi_track()->get_playback_channel_mask();
 
        for (uint8_t i = 0; i < 16; ++i) {
-               if (chn_mask & (1<<i)) {
-                       display_patch_changes_on_channel (i);
-               }
-               /* TODO gray-out patch instad of not displaying it */
+               display_patch_changes_on_channel (i, chn_mask & (1 << i));
        }
 }
 
+/** @param active_channel true to display patch changes fully, false to display
+ * them `greyed-out' (as on an inactive channel)
+ */
 void
-MidiRegionView::display_patch_changes_on_channel (uint8_t channel)
+MidiRegionView::display_patch_changes_on_channel (uint8_t channel, bool active_channel)
 {
        for (MidiModel::PatchChanges::const_iterator i = _model->patch_changes().begin(); i != _model->patch_changes().end(); ++i) {
 
@@ -1113,20 +1224,8 @@ MidiRegionView::display_patch_changes_on_channel (uint8_t channel)
                        continue;
                }
 
-               MIDI::Name::PatchPrimaryKey patch_key ((*i)->bank_msb (), (*i)->bank_lsb (), (*i)->program ());
-
-               boost::shared_ptr<MIDI::Name::Patch> patch =
-                       MIDI::Name::MidiPatchManager::instance().find_patch(
-                               _model_name, _custom_device_mode, channel, patch_key);
-
-               if (patch != 0) {
-                       add_canvas_patch_change (*i, patch->name());
-               } else {
-                       char buf[16];
-                       /* program and bank numbers are zero-based: convert to one-based: MIDI_BP_ZERO */
-                       snprintf (buf, 16, "%d %d", (*i)->program() + MIDI_BP_ZERO , (*i)->bank() + MIDI_BP_ZERO);
-                       add_canvas_patch_change (*i, buf);
-               }
+               const string patch_name = instrument_info().get_patch_name ((*i)->bank(), (*i)->program(), channel);
+               add_canvas_patch_change (*i, patch_name, active_channel);
        }
 }
 
@@ -1176,7 +1275,6 @@ MidiRegionView::display_sysexes()
                        boost::static_pointer_cast<const Evoral::MIDIEvent<Evoral::MusicalTime> > (*i);
 
                Evoral::MusicalTime time = (*i)->time();
-               assert (time >= 0);
 
                if (mev) {
                        if (mev->is_spp() || mev->is_mtc_quarter() || mev->is_mtc_full()) {
@@ -1196,12 +1294,15 @@ MidiRegionView::display_sysexes()
                }
                string text = str.str();
 
-               const double x = trackview.editor().frame_to_pixel(source_beats_to_absolute_frames(time));
+               const double x = trackview.editor().sample_to_pixel(source_beats_to_region_frames(time));
 
                double height = midi_stream_view()->contents_height();
 
-               boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
-                       new CanvasSysEx(*this, *_note_group, text, height, x, 1.0));
+               // CAIROCANVAS: no longer passing *i (the sysex event) to the
+               // SysEx canvas object!!!
+
+               boost::shared_ptr<SysEx> sysex = boost::shared_ptr<SysEx>(
+                       new SysEx (*this, _note_group, text, height, x, 1.0));
 
                // Show unless message is beyond the region bounds
                if (time - _region->start() >= _region->length() || time < _region->start()) {
@@ -1230,8 +1331,10 @@ MidiRegionView::~MidiRegionView ()
                end_write();
        }
 
+       _selection_cleared_connection.disconnect ();
+
        _selection.clear();
-       clear_events();
+       clear_events (false);
 
        delete _note_group;
        delete _note_diff_command;
@@ -1256,12 +1359,19 @@ void
 MidiRegionView::reset_width_dependent_items (double pixel_width)
 {
        RegionView::reset_width_dependent_items(pixel_width);
-       assert(_pixel_width == pixel_width);
 
        if (_enable_display) {
                redisplay_model();
        }
 
+       for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
+               if ((*x)->canvas_item()->width() >= _pixel_width) {
+                       (*x)->hide();
+               } else {
+                       (*x)->show();
+               }
+       }
+
        move_step_edit_cursor (_step_edit_cursor_position);
        set_step_edit_cursor_width (_step_edit_cursor_width);
 }
@@ -1278,8 +1388,8 @@ MidiRegionView::set_height (double height)
                         midi_stream_view()->highest_note(),
                         height != old_height + FUDGE);
 
-       if (name_pixbuf) {
-               name_pixbuf->raise_to_top();
+       if (name_text) {
+               name_text->raise_to_top();
        }
 
        for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
@@ -1287,7 +1397,7 @@ MidiRegionView::set_height (double height)
        }
 
        if (_step_edit_cursor) {
-               _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
+               _step_edit_cursor->set_y1 (midi_stream_view()->contents_height());
        }
 }
 
@@ -1310,7 +1420,7 @@ MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
        _current_range_max = max;
 
        for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
-               CanvasNoteEvent* event = *i;
+               NoteBase* event = *i;
                boost::shared_ptr<NoteType> note (event->note());
 
                if (note->note() < _current_range_min ||
@@ -1320,15 +1430,15 @@ MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
                        event->show();
                }
 
-               if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
+               if (Note* cnote = dynamic_cast<Note*>(event)) {
 
-                       const double y1 = midi_stream_view()->note_to_y(note->note());
-                       const double y2 = y1 + floor(midi_stream_view()->note_height());
+                       const double y0 = midi_stream_view()->note_to_y(note->note());
+                       const double y1 = y0 + floor(midi_stream_view()->note_height());
 
-                       cnote->property_y1() = y1;
-                       cnote->property_y2() = y2;
+                       cnote->set_y0 (y0);
+                       cnote->set_y1 (y1);
 
-               } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
+               } else if (Hit* chit = dynamic_cast<Hit*>(event)) {
 
                        const double diamond_size = update_hit (chit);
 
@@ -1340,9 +1450,9 @@ MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
 GhostRegion*
 MidiRegionView::add_ghost (TimeAxisView& tv)
 {
-       CanvasNote* note;
+       Note* note;
 
-       double unit_position = _region->position () / samples_per_unit;
+       double unit_position = _region->position () / samples_per_pixel;
        MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
        MidiGhostRegion* ghost;
 
@@ -1356,16 +1466,16 @@ MidiRegionView::add_ghost (TimeAxisView& tv)
        }
 
        for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
-               if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
+               if ((note = dynamic_cast<Note*>(*i)) != 0) {
                        ghost->add_note(note);
                }
        }
 
        ghost->set_height ();
-       ghost->set_duration (_region->length() / samples_per_unit);
+       ghost->set_duration (_region->length() / samples_per_pixel);
        ghosts.push_back (ghost);
 
-       GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
+       GhostRegion::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&RegionView::remove_ghost, this, _1), gui_context());
 
        return ghost;
 }
@@ -1376,9 +1486,11 @@ MidiRegionView::add_ghost (TimeAxisView& tv)
 void
 MidiRegionView::begin_write()
 {
-       assert(!_active_notes);
-       _active_notes = new CanvasNote*[128];
-       for (unsigned i=0; i < 128; ++i) {
+       if (_active_notes) {
+               delete[] _active_notes;
+       }
+       _active_notes = new Note*[128];
+       for (unsigned i = 0; i < 128; ++i) {
                _active_notes[i] = 0;
        }
 }
@@ -1413,8 +1525,8 @@ MidiRegionView::resolve_note(uint8_t note, double end_time)
                */
                const framepos_t end_time_frames = region_beats_to_region_frames(end_time);
 
-               _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
-               _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
+               _active_notes[note]->set_x1 (trackview.editor().sample_to_pixel(end_time_frames));
+               _active_notes[note]->set_outline_what (0xf);
                _active_notes[note] = 0;
        }
 }
@@ -1431,7 +1543,7 @@ MidiRegionView::extend_active_notes()
 
        for (unsigned i=0; i < 128; ++i) {
                if (_active_notes[i]) {
-                       _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
+                       _active_notes[i]->set_x1 (trackview.editor().sample_to_pixel(_region->length()));
                }
        }
 }
@@ -1450,13 +1562,15 @@ MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
                return;
        }
 
-       NotePlayer* np = new NotePlayer (route_ui->midi_track());
+       NotePlayer* np = new NotePlayer (route_ui->midi_track ());
        np->add (note);
        np->play ();
+
+       /* NotePlayer deletes itself */
 }
 
 void
-MidiRegionView::play_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
+MidiRegionView::start_playing_midi_note(boost::shared_ptr<NoteType> note)
 {
        if (_no_sound_notes || !Config->get_sound_midi_notes()) {
                return;
@@ -1468,13 +1582,33 @@ MidiRegionView::play_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
                return;
        }
 
-       NotePlayer* np = new NotePlayer (route_ui->midi_track());
+       delete _note_player;
+       _note_player = new NotePlayer (route_ui->midi_track ());
+       _note_player->add (note);
+       _note_player->on ();
+}
+
+void
+MidiRegionView::start_playing_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
+{
+       if (_no_sound_notes || !Config->get_sound_midi_notes()) {
+               return;
+       }
+
+       RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
+
+       if (!route_ui || !route_ui->midi_track()) {
+               return;
+       }
+
+       delete _note_player;
+       _note_player = new NotePlayer (route_ui->midi_track());
 
        for (vector<boost::shared_ptr<NoteType> >::iterator n = notes.begin(); n != notes.end(); ++n) {
-               np->add (*n);
+               _note_player->add (*n);
        }
 
-       np->play ();
+       _note_player->on ();
 }
 
 
@@ -1495,46 +1629,45 @@ MidiRegionView::note_in_region_range (const boost::shared_ptr<NoteType> note, bo
  *  @param update_ghost_regions true to update the note in any ghost regions that we have, otherwise false.
  */
 void
-MidiRegionView::update_note (CanvasNote* ev, bool update_ghost_regions)
+MidiRegionView::update_note (Note* ev, bool update_ghost_regions)
 {
        boost::shared_ptr<NoteType> note = ev->note();
-       const double x = trackview.editor().frame_to_pixel (source_beats_to_region_frames (note->time()));
-       const double y1 = midi_stream_view()->note_to_y(note->note());
+       const double x = trackview.editor().sample_to_pixel (source_beats_to_region_frames (note->time()));
+       const double y0 = midi_stream_view()->note_to_y(note->note());
 
-       ev->property_x1() = x;
-       ev->property_y1() = y1;
+       ev->set_x0 (x);
+       ev->set_y0 (y0);
 
        /* trim note display to not overlap the end of its region */
 
        if (note->length() > 0) {
                const framepos_t note_end_frames = min (source_beats_to_region_frames (note->end_time()), _region->length());
-               ev->property_x2() = trackview.editor().frame_to_pixel (note_end_frames);
+               ev->set_x1 (trackview.editor().sample_to_pixel (note_end_frames));
        } else {
-               ev->property_x2() = trackview.editor().frame_to_pixel (_region->length());
+               ev->set_x1 (trackview.editor().sample_to_pixel (_region->length()));
        }
 
-       ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
+       ev->set_y1 (y0 + floor(midi_stream_view()->note_height()));
 
        if (note->length() == 0) {
-               if (_active_notes) {
-                       assert(note->note() < 128);
+               if (_active_notes && note->note() < 128) {
                        // If this note is already active there's a stuck note,
                        // finish the old note rectangle
                        if (_active_notes[note->note()]) {
-                               CanvasNote* const old_rect = _active_notes[note->note()];
+                               Note* const old_rect = _active_notes[note->note()];
                                boost::shared_ptr<NoteType> old_note = old_rect->note();
-                               old_rect->property_x2() = x;
-                               old_rect->property_outline_what() = (guint32) 0xF;
+                               old_rect->set_x1 (x);
+                               old_rect->set_outline_what (0xF);
                        }
                        _active_notes[note->note()] = ev;
                }
                /* outline all but right edge */
-               ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
+               ev->set_outline_what (0x1 & 0x4 & 0x8);
        } else {
                /* outline all edges */
-               ev->property_outline_what() = (guint32) 0xF;
+               ev->set_outline_what (0xF);
        }
-
+       
        if (update_ghost_regions) {
                for (std::vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
                        MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*i);
@@ -1546,16 +1679,16 @@ MidiRegionView::update_note (CanvasNote* ev, bool update_ghost_regions)
 }
 
 double
-MidiRegionView::update_hit (CanvasHit* ev)
+MidiRegionView::update_hit (Hit* ev)
 {
        boost::shared_ptr<NoteType> note = ev->note();
 
        const framepos_t note_start_frames = source_beats_to_region_frames(note->time());
-       const double x = trackview.editor().frame_to_pixel(note_start_frames);
+       const double x = trackview.editor().sample_to_pixel(note_start_frames);
        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_to (x, y);
+       ev->set_position (ArdourCanvas::Duple (x, y));
 
        return diamond_size;
 }
@@ -1569,16 +1702,13 @@ MidiRegionView::update_hit (CanvasHit* ev)
 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);
+       NoteBase* event = 0;
 
        //ArdourCanvas::Group* const group = (ArdourCanvas::Group*) get_canvas_group();
 
        if (midi_view()->note_mode() == Sustained) {
 
-               CanvasNote* ev_rect = new CanvasNote(*this, *_note_group, note);
+               Note* ev_rect = new Note (*this, _note_group, note);
 
                update_note (ev_rect);
 
@@ -1596,7 +1726,7 @@ MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
 
                const double diamond_size = midi_stream_view()->note_height() / 2.0;
 
-               CanvasHit* ev_diamond = new CanvasHit (*this, *_note_group, diamond_size, note);
+               Hit* ev_diamond = new Hit (*this, _note_group, diamond_size, note);
 
                update_hit (ev_diamond);
 
@@ -1615,7 +1745,7 @@ MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
                        event->show_velocity();
                }
 
-               event->on_channel_selection_change(_last_channel_selection);
+               event->on_channel_selection_change (get_selected_channels());
                _events.push_back(event);
 
                if (visible) {
@@ -1667,58 +1797,87 @@ MidiRegionView::step_sustain (Evoral::MusicalTime beats)
        change_note_lengths (false, false, beats, false, true);
 }
 
+/** Add a new patch change flag to the canvas.
+ * @param patch the patch change to add
+ * @param the text to display in the flag
+ * @param active_channel true to display the flag as on an active channel, false to grey it out for an inactive channel.
+ */
 void
-MidiRegionView::add_canvas_patch_change (MidiModel::PatchChangePtr patch, const string& displaytext)
+MidiRegionView::add_canvas_patch_change (MidiModel::PatchChangePtr patch, const string& displaytext, bool /*active_channel*/)
 {
-       assert (patch->time() >= 0);
-
        framecnt_t region_frames = source_beats_to_region_frames (patch->time());
-       const double x = trackview.editor().frame_to_pixel (region_frames);
+       const double x = trackview.editor().sample_to_pixel (region_frames);
 
        double const height = midi_stream_view()->contents_height();
 
-       boost::shared_ptr<CanvasPatchChange> patch_change = boost::shared_ptr<CanvasPatchChange>(
-               new CanvasPatchChange(*this, *_note_group,
-                                     displaytext,
-                                     height,
-                                     x, 1.0,
-                                     _model_name,
-                                     _custom_device_mode,
-                                     patch)
-                         );
-
-       // Show unless patch change is beyond the region bounds
-       if (region_frames < 0 || region_frames >= _region->length()) {
-               patch_change->hide();
+       // CAIROCANVAS: active_channel info removed from PatcChange constructor
+       // so we need to do something more sophisticated to keep its color
+       // appearance (MidiPatchChangeFill/MidiPatchChangeInactiveChannelFill)
+       // up to date.
+
+       boost::shared_ptr<PatchChange> patch_change = boost::shared_ptr<PatchChange>(
+               new PatchChange(*this, group,
+                               displaytext,
+                               height,
+                               x, 1.0,
+                               instrument_info(),
+                               patch));
+
+       if (patch_change->item().width() < _pixel_width) {
+               // Show unless patch change is beyond the region bounds
+               if (region_frames < 0 || region_frames >= _region->length()) {
+                       patch_change->hide();
+               } else {
+                       patch_change->show();
+               }
        } else {
-               patch_change->show();
+               patch_change->hide ();
        }
 
        _patch_changes.push_back (patch_change);
 }
 
-void
-MidiRegionView::get_patch_key_at (Evoral::MusicalTime time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
+MIDI::Name::PatchPrimaryKey
+MidiRegionView::patch_change_to_patch_key (MidiModel::PatchChangePtr p)
+{
+       return MIDI::Name::PatchPrimaryKey (p->program(), p->bank());
+}
+
+/// Return true iff @p pc applies to the given time on the given channel.
+static bool
+patch_applies (const ARDOUR::MidiModel::constPatchChangePtr pc, double time, uint8_t channel)
+{
+       return pc->time() <= time && pc->channel() == channel;
+}
+       
+void 
+MidiRegionView::get_patch_key_at (double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key) const
 {
+       // The earliest event not before time
        MidiModel::PatchChanges::iterator i = _model->patch_change_lower_bound (time);
-       while (i != _model->patch_changes().end() && (*i)->channel() != channel) {
-               ++i;
+
+       // Go backwards until we find the latest PC for this channel, or the start
+       while (i != _model->patch_changes().begin() &&
+              (i == _model->patch_changes().end() ||
+               !patch_applies(*i, time, channel))) {
+               --i;
        }
 
-       if (i != _model->patch_changes().end()) {
-               key.msb = (*i)->bank_msb ();
-               key.lsb = (*i)->bank_lsb ();
+       if (i != _model->patch_changes().end() && patch_applies(*i, time, channel)) {
+               key.bank_number    = (*i)->bank();
                key.program_number = (*i)->program ();
        } else {
-               key.msb = key.lsb = key.program_number = 0;
+               key.bank_number = key.program_number = 0;
        }
 
-       assert (key.is_sane());
+       if (!key.is_sane()) {
+               error << string_compose(_("insane MIDI patch key %1:%2"),
+                                       key.bank_number, key.program_number) << endmsg;
+       }
 }
 
-
 void
-MidiRegionView::change_patch_change (CanvasPatchChange& pc, const MIDI::Name::PatchPrimaryKey& new_patch)
+MidiRegionView::change_patch_change (PatchChange& pc, const MIDI::Name::PatchPrimaryKey& new_patch)
 {
        MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("alter patch change"));
 
@@ -1726,7 +1885,7 @@ MidiRegionView::change_patch_change (CanvasPatchChange& pc, const MIDI::Name::Pa
                c->change_program (pc.patch (), new_patch.program_number);
        }
 
-       int const new_bank = (new_patch.msb << 7) | new_patch.lsb;
+       int const new_bank = new_patch.bank_number;
        if (pc.patch()->bank() != new_bank) {
                c->change_bank (pc.patch (), new_bank);
        }
@@ -1790,7 +1949,7 @@ MidiRegionView::add_patch_change (framecnt_t t, Evoral::PatchChange<Evoral::Musi
 }
 
 void
-MidiRegionView::move_patch_change (CanvasPatchChange& pc, Evoral::MusicalTime t)
+MidiRegionView::move_patch_change (PatchChange& pc, Evoral::MusicalTime t)
 {
        MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("move patch change"));
        c->change_time (pc.patch (), t);
@@ -1801,7 +1960,7 @@ MidiRegionView::move_patch_change (CanvasPatchChange& pc, Evoral::MusicalTime t)
 }
 
 void
-MidiRegionView::delete_patch_change (CanvasPatchChange* pc)
+MidiRegionView::delete_patch_change (PatchChange* pc)
 {
        MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("delete patch change"));
        c->remove (pc->patch ());
@@ -1812,67 +1971,51 @@ MidiRegionView::delete_patch_change (CanvasPatchChange* pc)
 }
 
 void
-MidiRegionView::previous_patch (CanvasPatchChange& patch)
+MidiRegionView::previous_patch (PatchChange& patch)
 {
        if (patch.patch()->program() < 127) {
-               MIDI::Name::PatchPrimaryKey key;
-               get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
+               MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
                key.program_number++;
                change_patch_change (patch, key);
        }
 }
 
 void
-MidiRegionView::next_patch (CanvasPatchChange& patch)
+MidiRegionView::next_patch (PatchChange& patch)
 {
        if (patch.patch()->program() > 0) {
-               MIDI::Name::PatchPrimaryKey key;
-               get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
+               MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
                key.program_number--;
                change_patch_change (patch, key);
        }
 }
 
 void
-MidiRegionView::previous_bank (CanvasPatchChange& patch)
+MidiRegionView::next_bank (PatchChange& patch)
 {
        if (patch.patch()->program() < 127) {
-               MIDI::Name::PatchPrimaryKey key;
-               get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
-               if (key.lsb > 0) {
-                       key.lsb--;
+               MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
+               if (key.bank_number > 0) {
+                       key.bank_number--;
                        change_patch_change (patch, key);
-               } else {
-                       if (key.msb > 0) {
-                               key.lsb = 127;
-                               key.msb--;
-                               change_patch_change (patch, key);
-                       }
                }
        }
 }
 
 void
-MidiRegionView::next_bank (CanvasPatchChange& patch)
+MidiRegionView::previous_bank (PatchChange& patch)
 {
        if (patch.patch()->program() > 0) {
-               MIDI::Name::PatchPrimaryKey key;
-               get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
-               if (key.lsb < 127) {
-                       key.lsb++;
+               MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
+               if (key.bank_number < 127) {
+                       key.bank_number++;
                        change_patch_change (patch, key);
-               } else {
-                       if (key.msb < 127) {
-                               key.lsb = 0;
-                               key.msb++;
-                               change_patch_change (patch, key);
-                       }
                }
        }
 }
 
 void
-MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
+MidiRegionView::maybe_remove_deleted_note_from_selection (NoteBase* cne)
 {
        if (_selection.empty()) {
                return;
@@ -1912,11 +2055,9 @@ MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
 }
 
 void
-MidiRegionView::clear_selection_except (ArdourCanvas::CanvasNoteEvent* ev, bool signal)
+MidiRegionView::clear_selection_except (NoteBase* ev, bool signal)
 {
-       bool changed = false;
-
-       for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
+       for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
                if ((*i) != ev) {
                        Selection::iterator tmp = i;
                        ++tmp;
@@ -1924,7 +2065,6 @@ MidiRegionView::clear_selection_except (ArdourCanvas::CanvasNoteEvent* ev, bool
                        (*i)->set_selected (false);
                        (*i)->hide_velocity ();
                        _selection.erase (i);
-                       changed = true;
 
                        i = tmp;
                } else {
@@ -1936,13 +2076,13 @@ MidiRegionView::clear_selection_except (ArdourCanvas::CanvasNoteEvent* ev, bool
           selection.
        */
 
-       if (changed && signal) {
+       if (signal) {
                SelectionCleared (this); /* EMIT SIGNAL */
        }
 }
 
 void
-MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
+MidiRegionView::unique_select(NoteBase* ev)
 {
        clear_selection_except (ev);
 
@@ -2030,7 +2170,7 @@ MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, b
        for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 
                boost::shared_ptr<NoteType> note (*n);
-               CanvasNoteEvent* cne;
+               NoteBase* cne;
                bool select = false;
 
                if (((1 << note->channel()) & channel_mask) != 0) {
@@ -2067,7 +2207,7 @@ MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
        for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 
                boost::shared_ptr<NoteType> note (*n);
-               CanvasNoteEvent* cne;
+               NoteBase* cne;
 
                if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
                        if ((cne = find_canvas_note (note)) != 0) {
@@ -2082,7 +2222,7 @@ MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
 }
 
 void
-MidiRegionView::note_selected (ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
+MidiRegionView::note_selected (NoteBase* ev, bool add, bool extend)
 {
        if (!add) {
                clear_selection_except (ev);
@@ -2135,18 +2275,34 @@ MidiRegionView::note_selected (ArdourCanvas::CanvasNoteEvent* ev, bool add, bool
 }
 
 void
-MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
+MidiRegionView::note_deselected(NoteBase* ev)
 {
        remove_from_selection (ev);
 }
 
 void
-MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2, bool extend)
+MidiRegionView::update_drag_selection(double x0, double x1, double y0, double y1, bool extend)
 {
-       if (x1 > x2) {
-               swap (x1, x2);
+       // TODO: Make this faster by storing the last updated selection rect, and only
+       // adjusting things that are in the area that appears/disappeared.
+       // We probably need a tree to be able to find events in O(log(n)) time.
+
+       for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
+               if ((*i)->x0() < x1 && (*i)->x1() > x0 && (*i)->y0() < y1 && (*i)->y1() > y0) {
+                       // Rectangles intersect
+                       if (!(*i)->selected()) {
+                               add_to_selection (*i);
+                       }
+               } else if ((*i)->selected() && !extend) {
+                       // Rectangles do not intersect
+                       remove_from_selection (*i);
+               }
        }
+}
 
+void
+MidiRegionView::update_vertical_drag_selection (double y1, double y2, bool extend)
+{
        if (y1 > y2) {
                swap (y1, y2);
        }
@@ -2156,37 +2312,19 @@ MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2
        // We probably need a tree to be able to find events in O(log(n)) time.
 
        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.
-               */
-
-               const double ix1 = (*i)->x1();
-               const double ix2 = (*i)->x2();
-               const double iy1 = (*i)->y1();
-               const double iy2 = (*i)->y2();
-
-               if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
-                   (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
-                   (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
-                   (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
-
-                       // Inside rectangle
+               if (((*i)->y1() >= y1 && (*i)->y1() <= y2)) {
+                       // within y- (note-) range
                        if (!(*i)->selected()) {
                                add_to_selection (*i);
                        }
                } else if ((*i)->selected() && !extend) {
-                       // Not inside rectangle
                        remove_from_selection (*i);
                }
        }
 }
 
 void
-MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
+MidiRegionView::remove_from_selection (NoteBase* ev)
 {
        Selection::iterator i = _selection.find (ev);
 
@@ -2204,7 +2342,7 @@ MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
 }
 
 void
-MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
+MidiRegionView::add_to_selection (NoteBase* ev)
 {
        bool add_mrv_selection = false;
 
@@ -2214,7 +2352,7 @@ MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
 
        if (_selection.insert (ev).second) {
                ev->set_selected (true);
-               play_midi_note ((ev)->note());
+               start_playing_midi_note ((ev)->note());
        }
 
        if (add_mrv_selection) {
@@ -2255,25 +2393,23 @@ MidiRegionView::move_selection(double dx, double dy, double cumulative_dy)
                                shifted.push_back (moved_note);
                        }
 
-                       play_midi_chord (shifted);
+                       start_playing_midi_chord (shifted);
 
                } else if (!to_play.empty()) {
 
                        boost::shared_ptr<NoteType> moved_note (new NoteType (*to_play.front()));
                        moved_note->set_note (moved_note->note() + cumulative_dy);
-                       play_midi_note (moved_note);
+                       start_playing_midi_note (moved_note);
                }
        }
 }
 
 void
-MidiRegionView::note_dropped(CanvasNoteEvent *, frameoffset_t dt, int8_t dnote)
+MidiRegionView::note_dropped(NoteBase *, frameoffset_t dt, int8_t dnote)
 {
-       assert (!_selection.empty());
-
        uint8_t lowest_note_in_selection  = 127;
        uint8_t highest_note_in_selection = 0;
-       uint8_t highest_note_difference = 0;
+       uint8_t highest_note_difference   = 0;
 
        // find highest and lowest notes first
 
@@ -2336,10 +2472,10 @@ MidiRegionView::note_dropped(CanvasNoteEvent *, frameoffset_t dt, int8_t dnote)
  *  @return Snapped frame relative to the region position.
  */
 framepos_t
-MidiRegionView::snap_pixel_to_frame(double x)
+MidiRegionView::snap_pixel_to_sample(double x)
 {
        PublicEditor& editor (trackview.editor());
-       return snap_frame_to_frame (editor.pixel_to_frame (x));
+       return snap_frame_to_frame (editor.pixel_to_sample (x));
 }
 
 /** @param x Pixel relative to the region position.
@@ -2348,21 +2484,21 @@ MidiRegionView::snap_pixel_to_frame(double x)
 double
 MidiRegionView::snap_to_pixel(double x)
 {
-       return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
+       return (double) trackview.editor().sample_to_pixel(snap_pixel_to_sample(x));
 }
 
 double
 MidiRegionView::get_position_pixels()
 {
        framepos_t region_frame = get_position();
-       return trackview.editor().frame_to_pixel(region_frame);
+       return trackview.editor().sample_to_pixel(region_frame);
 }
 
 double
 MidiRegionView::get_end_position_pixels()
 {
        framepos_t frame = get_position() + get_duration ();
-       return trackview.editor().frame_to_pixel(frame);
+       return trackview.editor().sample_to_pixel(frame);
 }
 
 framepos_t
@@ -2405,33 +2541,33 @@ MidiRegionView::begin_resizing (bool /*at_front*/)
        _resize_data.clear();
 
        for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
-               CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
+               Note *note = dynamic_cast<Note*> (*i);
 
                // only insert CanvasNotes into the map
                if (note) {
                        NoteResizeData *resize_data = new NoteResizeData();
-                       resize_data->canvas_note = note;
+                       resize_data->note = note;
 
                        // create a new SimpleRect from the note which will be the resize preview
-                       SimpleRect *resize_rect = new SimpleRect(
-                               *_note_group, note->x1(), note->y1(), note->x2(), note->y2());
+                       ArdourCanvas::Rectangle *resize_rect = new ArdourCanvas::Rectangle (_note_group, 
+                                                                                           ArdourCanvas::Rect (note->x0(), note->y0(), note->x0(), note->y1()));
 
                        // calculate the colors: get the color settings
                        uint32_t fill_color = UINT_RGBA_CHANGE_A(
-                               ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
+                               ARDOUR_UI::config()->get_canvasvar_MidiNoteSelected(),
                                128);
 
                        // make the resize preview notes more transparent and bright
                        fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
 
                        // calculate color based on note velocity
-                       resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
-                               CanvasNoteEvent::meter_style_fill_color(note->note()->velocity(), note->selected()),
+                       resize_rect->set_fill_color (UINT_INTERPOLATE(
+                               NoteBase::meter_style_fill_color(note->note()->velocity(), note->selected()),
                                fill_color,
-                               0.85);
+                               0.85));
 
-                       resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
-                               ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
+                       resize_rect->set_outline_color (NoteBase::calculate_outline (
+                                                               ARDOUR_UI::config()->get_canvasvar_MidiNoteSelected()));
 
                        resize_data->resize_rect = resize_rect;
                        _resize_data.push_back(resize_data);
@@ -2449,41 +2585,41 @@ MidiRegionView::begin_resizing (bool /*at_front*/)
  * as the \a primary note.
  */
 void
-MidiRegionView::update_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at_front, double delta_x, bool relative)
+MidiRegionView::update_resizing (NoteBase* primary, bool at_front, double delta_x, bool relative)
 {
        bool cursor_set = false;
 
        for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
-               SimpleRect* resize_rect = (*i)->resize_rect;
-               CanvasNote* canvas_note = (*i)->canvas_note;
+               ArdourCanvas::Rectangle* resize_rect = (*i)->resize_rect;
+               Note* canvas_note = (*i)->note;
                double current_x;
 
                if (at_front) {
                        if (relative) {
-                               current_x = canvas_note->x1() + delta_x;
+                               current_x = canvas_note->x0() + delta_x;
                        } else {
-                               current_x = primary->x1() + delta_x;
+                               current_x = primary->x0() + delta_x;
                        }
                } else {
                        if (relative) {
-                               current_x = canvas_note->x2() + delta_x;
+                               current_x = canvas_note->x1() + delta_x;
                        } else {
-                               current_x = primary->x2() + delta_x;
+                               current_x = primary->x1() + delta_x;
                        }
                }
 
                if (at_front) {
-                       resize_rect->property_x1() = snap_to_pixel(current_x);
-                       resize_rect->property_x2() = canvas_note->x2();
+                       resize_rect->set_x0 (snap_to_pixel(current_x));
+                       resize_rect->set_x1 (canvas_note->x1());
                } else {
-                       resize_rect->property_x2() = snap_to_pixel(current_x);
-                       resize_rect->property_x1() = canvas_note->x1();
+                       resize_rect->set_x1 (snap_to_pixel(current_x));
+                       resize_rect->set_x0 (canvas_note->x0());
                }
 
                if (!cursor_set) {
                        double beats;
 
-                       beats = snap_pixel_to_frame (current_x);
+                       beats = snap_pixel_to_sample (current_x);
                        beats = region_frames_to_region_beats (beats);
 
                        double len;
@@ -2518,13 +2654,13 @@ MidiRegionView::update_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at
  *  Parameters the same as for \a update_resizing().
  */
 void
-MidiRegionView::commit_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at_front, double delta_x, bool relative)
+MidiRegionView::commit_resizing (NoteBase* primary, bool at_front, double delta_x, bool relative)
 {
        start_note_diff_command (_("resize notes"));
 
        for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
-               CanvasNote*  canvas_note = (*i)->canvas_note;
-               SimpleRect*  resize_rect = (*i)->resize_rect;
+               Note*  canvas_note = (*i)->note;
+               ArdourCanvas::Rectangle*  resize_rect = (*i)->resize_rect;
 
                /* Get the new x position for this resize, which is in pixels relative
                 * to the region position.
@@ -2534,20 +2670,20 @@ MidiRegionView::commit_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at
 
                if (at_front) {
                        if (relative) {
-                               current_x = canvas_note->x1() + delta_x;
+                               current_x = canvas_note->x0() + delta_x;
                        } else {
-                               current_x = primary->x1() + delta_x;
+                               current_x = primary->x0() + delta_x;
                        }
                } else {
                        if (relative) {
-                               current_x = canvas_note->x2() + delta_x;
+                               current_x = canvas_note->x1() + delta_x;
                        } else {
-                               current_x = primary->x2() + delta_x;
+                               current_x = primary->x1() + delta_x;
                        }
                }
 
                /* Convert that to a frame within the source */
-               current_x = snap_pixel_to_frame (current_x) + _region->start ();
+               current_x = snap_pixel_to_sample (current_x) + _region->start ();
 
                /* and then to beats */
                current_x = region_frames_to_region_beats (current_x);
@@ -2593,7 +2729,7 @@ MidiRegionView::abort_resizing ()
 }
 
 void
-MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
+MidiRegionView::change_note_velocity(NoteBase* event, int8_t velocity, bool relative)
 {
        uint8_t new_velocity;
 
@@ -2610,7 +2746,7 @@ MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bo
 }
 
 void
-MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
+MidiRegionView::change_note_note (NoteBase* event, int8_t note, bool relative)
 {
        uint8_t new_note;
 
@@ -2625,7 +2761,7 @@ MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool rela
 }
 
 void
-MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
+MidiRegionView::trim_note (NoteBase* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
 {
        bool change_start = false;
        bool change_length = false;
@@ -2697,7 +2833,7 @@ MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_del
 }
 
 void
-MidiRegionView::change_note_channel (CanvasNoteEvent* event, int8_t chn, bool relative)
+MidiRegionView::change_note_channel (NoteBase* event, int8_t chn, bool relative)
 {
        uint8_t new_channel;
 
@@ -2719,7 +2855,7 @@ MidiRegionView::change_note_channel (CanvasNoteEvent* event, int8_t chn, bool re
 }
 
 void
-MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
+MidiRegionView::change_note_time (NoteBase* event, Evoral::MusicalTime delta, bool relative)
 {
        Evoral::MusicalTime new_time;
 
@@ -2741,15 +2877,16 @@ MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime de
 }
 
 void
-MidiRegionView::change_note_length (CanvasNoteEvent* event, Evoral::MusicalTime t)
+MidiRegionView::change_note_length (NoteBase* event, Evoral::MusicalTime t)
 {
        note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, t);
 }
 
 void
-MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
+MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush, bool all_together)
 {
        int8_t delta;
+       int8_t value = 0;
 
        if (_selection.empty()) {
                return;
@@ -2767,8 +2904,8 @@ MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
 
        if (!allow_smush) {
                for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
-                       if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
-                               return;
+                       if ((*i)->note()->velocity() < -delta || (*i)->note()->velocity() + delta > 127) {
+                               goto cursor_label;
                        }
                }
        }
@@ -2778,12 +2915,25 @@ MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
        for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
                Selection::iterator next = i;
                ++next;
-               change_note_velocity (*i, delta, true);
+
+               if (all_together) {
+                       if (i == _selection.begin()) {
+                               change_note_velocity (*i, delta, true);
+                               value = (*i)->note()->velocity() + delta;
+                       } else {
+                               change_note_velocity (*i, value, false);
+                       }
+
+               } else {
+                       change_note_velocity (*i, delta, true);
+               }
+
                i = next;
        }
 
        apply_diff();
 
+  cursor_label:
        if (!_selection.empty()) {
                char buf[24];
                snprintf (buf, sizeof (buf), "Vel %d",
@@ -2850,7 +3000,7 @@ MidiRegionView::change_note_lengths (bool fine, bool shorter, Evoral::MusicalTim
                        delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
                        if (!success) {
                                /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
-                               cerr << "Grid type not available as beats - TO BE FIXED\n";
+                               error << string_compose (_("programming error: %1"), "Grid type not available as beats - TO BE FIXED") << endmsg;
                                return;
                        }
                }
@@ -2890,7 +3040,7 @@ MidiRegionView::nudge_notes (bool forward)
 
        framepos_t ref_point = source_beats_to_absolute_frames ((*(_selection.begin()))->note()->time());
        framepos_t unused;
-       framepos_t distance;
+       framecnt_t distance;
 
        if (trackview.editor().snap_mode() == Editing::SnapOff) {
 
@@ -2954,11 +3104,11 @@ MidiRegionView::change_channel(uint8_t channel)
 
 
 void
-MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
+MidiRegionView::note_entered(NoteBase* ev)
 {
        Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
 
-       _pre_enter_cursor = editor->get_canvas_cursor ();
+       pre_enter_cursor = editor->get_canvas_cursor ();
 
        if (_mouse_state == SelectTouchDragging) {
                note_selected (ev, true);
@@ -2968,7 +3118,7 @@ MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
 }
 
 void
-MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
+MidiRegionView::note_left (NoteBase*)
 {
        Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
 
@@ -2978,39 +3128,67 @@ MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
 
        editor->verbose_cursor()->hide ();
 
-       if (_pre_enter_cursor) {
-               editor->set_canvas_cursor (_pre_enter_cursor);
-               _pre_enter_cursor = 0;
+       if (pre_enter_cursor) {
+               editor->set_canvas_cursor (pre_enter_cursor);
+               pre_enter_cursor = 0;
        }
 }
 
 void
-MidiRegionView::patch_entered (ArdourCanvas::CanvasPatchChange* ev)
+MidiRegionView::patch_entered (PatchChange* p)
 {
        ostringstream s;
        /* XXX should get patch name if we can */
-       s << _("Bank:") << (ev->patch()->bank() + MIDI_BP_ZERO) << '\n' << _("Program:") << ((int) ev->patch()->program()) + MIDI_BP_ZERO << '\n' << _("Channel:") << ((int) ev->patch()->channel() + 1);
+       s << _("Bank ") << (p->patch()->bank() + MIDI_BP_ZERO) << '\n' 
+         << _("Program ") << ((int) p->patch()->program()) + MIDI_BP_ZERO << '\n' 
+         << _("Channel ") << ((int) p->patch()->channel() + 1);
        show_verbose_cursor (s.str(), 10, 20);
+       p->item().grab_focus();
+}
+
+void
+MidiRegionView::patch_left (PatchChange *)
+{
+       trackview.editor().verbose_cursor()->hide ();
+       /* focus will transfer back via the enter-notify event sent to this
+        * midi region view.
+        */
+}
+
+void
+MidiRegionView::sysex_entered (SysEx* p)
+{
+       ostringstream s;
+       // CAIROCANVAS
+       // need a way to extract text from p->_flag->_text
+       // s << p->text();
+       // show_verbose_cursor (s.str(), 10, 20);
+       p->item().grab_focus();
 }
 
 void
-MidiRegionView::patch_left (ArdourCanvas::CanvasPatchChange *)
+MidiRegionView::sysex_left (SysEx *)
 {
        trackview.editor().verbose_cursor()->hide ();
+       /* focus will transfer back via the enter-notify event sent to this
+        * midi region view.
+        */
 }
 
 void
 MidiRegionView::note_mouse_position (float x_fraction, float /*y_fraction*/, bool can_set_cursor)
 {
        Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
+       Editing::MouseMode mm = editor->current_mouse_mode();
+       bool trimmable = (mm == MouseObject || mm == MouseTimeFX || mm == MouseDraw);
 
-       if (x_fraction > 0.0 && x_fraction < 0.2) {
+       if (trimmable && x_fraction > 0.0 && x_fraction < 0.2) {
                editor->set_canvas_cursor (editor->cursors()->left_side_trim);
-       } else if (x_fraction >= 0.8 && x_fraction < 1.0) {
+       } else if (trimmable && x_fraction >= 0.8 && x_fraction < 1.0) {
                editor->set_canvas_cursor (editor->cursors()->right_side_trim);
        } else {
-               if (_pre_enter_cursor && can_set_cursor) {
-                       editor->set_canvas_cursor (_pre_enter_cursor);
+               if (pre_enter_cursor && can_set_cursor) {
+                       editor->set_canvas_cursor (pre_enter_cursor);
                }
        }
 }
@@ -3027,9 +3205,9 @@ MidiRegionView::set_frame_color()
        }
 
        if (_selected) {
-               f = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
+               f = ARDOUR_UI::config()->get_canvasvar_SelectedFrameBase();
        } else if (high_enough_for_name) {
-               f= ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
+               f= ARDOUR_UI::config()->get_canvasvar_MidiFrameBase();
        } else {
                f = fill_color;
        }
@@ -3038,38 +3216,32 @@ MidiRegionView::set_frame_color()
                f = UINT_RGBA_CHANGE_A (f, 0);
        }
 
-       frame->property_fill_color_rgba() = f;
+       frame->set_fill_color (f);
 }
 
 void
-MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
+MidiRegionView::midi_channel_mode_changed ()
 {
-       switch (mode) {
-       case AllChannels:
-       case FilterChannels:
-               _force_channel = -1;
-               break;
-       case ForceChannel:
-               _force_channel = mask;
+       MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
+       uint16_t mask = mtv->midi_track()->get_playback_channel_mask();
+       ChannelMode mode = mtv->midi_track()->get_playback_channel_mode ();
+
+       if (mode == ForceChannel) {
                mask = 0xFFFF; // Show all notes as active (below)
-       };
+       }
 
        // Update notes for selection
        for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
-               (*i)->on_channel_selection_change(mask);
+               (*i)->on_channel_selection_change (mask);
        }
 
-       _last_channel_selection = mask;
-
        _patch_changes.clear ();
        display_patch_changes ();
 }
 
 void
-MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
+MidiRegionView::instrument_settings_changed ()
 {
-       _model_name         = model;
-       _custom_device_mode = custom_device_mode;
        redisplay_model();
 }
 
@@ -3150,7 +3322,7 @@ MidiRegionView::paste (framepos_t pos, float times, const MidiCutBuffer& mcb)
        Evoral::MusicalTime end_point = 0;
 
        duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
-       paste_pos_beats = region_frames_to_region_beats (pos - _region->position());
+       paste_pos_beats = absolute_frames_to_source_beats (pos);
        beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
        paste_pos_beats = 0;
 
@@ -3188,7 +3360,7 @@ MidiRegionView::paste (framepos_t pos, float times, const MidiCutBuffer& mcb)
                DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste extended region from %1 to %2\n", region_end, end_frame));
 
                _region->clear_changes ();
-               _region->set_length (end_frame);
+               _region->set_length (end_frame - _region->position());
                trackview.session()->add_command (new StatefulDiffCommand (_region));
        }
 
@@ -3198,7 +3370,7 @@ MidiRegionView::paste (framepos_t pos, float times, const MidiCutBuffer& mcb)
 }
 
 struct EventNoteTimeEarlyFirstComparator {
-       bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
+       bool operator() (NoteBase* a, NoteBase* b) {
                return a->note()->time() < b->note()->time();
        }
 };
@@ -3228,7 +3400,7 @@ MidiRegionView::goto_next_note (bool add_to_selection)
        time_sort_events ();
 
        MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
-       uint16_t const channel_mask = mtv->channel_selector().get_selected_channels ();
+       uint16_t const channel_mask = mtv->midi_track()->get_playback_channel_mask();
 
        for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
                if ((*i)->selected()) {
@@ -3265,7 +3437,7 @@ MidiRegionView::goto_previous_note (bool add_to_selection)
        time_sort_events ();
 
        MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
-       uint16_t const channel_mask = mtv->channel_selector().get_selected_channels ();
+       uint16_t const channel_mask = mtv->midi_track()->get_playback_channel_mask ();
 
        for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
                if ((*i)->selected()) {
@@ -3319,11 +3491,11 @@ MidiRegionView::update_ghost_note (double x, double y)
        _last_ghost_x = x;
        _last_ghost_y = y;
 
-       _note_group->w2i (x, y);
+       _note_group->canvas_to_item (x, y);
 
        PublicEditor& editor = trackview.editor ();
        
-       framepos_t const unsnapped_frame = editor.pixel_to_frame (x);
+       framepos_t const unsnapped_frame = editor.pixel_to_sample (x);
        framecnt_t grid_frames;
        framepos_t const f = snap_frame_to_grid_underneath (unsnapped_frame, grid_frames);
 
@@ -3357,8 +3529,9 @@ MidiRegionView::create_ghost_note (double x, double y)
        remove_ghost_note ();
 
        boost::shared_ptr<NoteType> g (new NoteType);
-       _ghost_note = new NoEventCanvasNote (*this, *_note_group, g);
-       _ghost_note->property_outline_color_rgba() = 0x000000aa;
+       _ghost_note = new Note (*this, _note_group, g);
+       _ghost_note->set_ignore_events (true);
+       _ghost_note->set_outline_color (0x000000aa);
        update_ghost_note (x, y);
        _ghost_note->show ();
 
@@ -3391,7 +3564,7 @@ MidiRegionView::maybe_select_by_position (GdkEventButton* ev, double /*x*/, doub
        Events e;
        MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 
-       uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
+       uint16_t chn_mask = mtv->midi_track()->get_playback_channel_mask();
 
        if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
                get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchGreaterThanOrEqual, (uint8_t) floor (note), chn_mask);
@@ -3446,11 +3619,11 @@ MidiRegionView::show_step_edit_cursor (Evoral::MusicalTime pos)
        if (_step_edit_cursor == 0) {
                ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 
-               _step_edit_cursor = new ArdourCanvas::SimpleRect (*group);
-               _step_edit_cursor->property_y1() = 0;
-               _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
-               _step_edit_cursor->property_fill_color_rgba() = RGBA_TO_UINT (45,0,0,90);
-               _step_edit_cursor->property_outline_color_rgba() = RGBA_TO_UINT (85,0,0,90);
+               _step_edit_cursor = new ArdourCanvas::Rectangle (group);
+               _step_edit_cursor->set_y0 (0);
+               _step_edit_cursor->set_y1 (midi_stream_view()->contents_height());
+               _step_edit_cursor->set_fill_color (RGBA_TO_UINT (45,0,0,90));
+               _step_edit_cursor->set_outline_color (RGBA_TO_UINT (85,0,0,90));
        }
 
        move_step_edit_cursor (pos);
@@ -3463,8 +3636,8 @@ MidiRegionView::move_step_edit_cursor (Evoral::MusicalTime pos)
        _step_edit_cursor_position = pos;
 
        if (_step_edit_cursor) {
-               double pixel = trackview.editor().frame_to_pixel (region_beats_to_region_frames (pos));
-               _step_edit_cursor->property_x1() = pixel;
+               double pixel = trackview.editor().sample_to_pixel (region_beats_to_region_frames (pos));
+               _step_edit_cursor->set_x0 (pixel);
                set_step_edit_cursor_width (_step_edit_cursor_width);
        }
 }
@@ -3483,7 +3656,7 @@ MidiRegionView::set_step_edit_cursor_width (Evoral::MusicalTime beats)
        _step_edit_cursor_width = beats;
 
        if (_step_edit_cursor) {
-               _step_edit_cursor->property_x2() = _step_edit_cursor->property_x1() + trackview.editor().frame_to_pixel (region_beats_to_region_frames (beats));
+               _step_edit_cursor->set_x1 (_step_edit_cursor->x0() + trackview.editor().sample_to_pixel (region_beats_to_region_frames (beats)));
        }
 }
 
@@ -3514,7 +3687,14 @@ MidiRegionView::data_recorded (boost::weak_ptr<MidiSource> w)
 
        for (MidiBuffer::iterator i = buf->begin(); i != buf->end(); ++i) {
                Evoral::MIDIEvent<MidiBuffer::TimeType> const ev (*i, false);
-               assert (ev.buffer ());
+
+               if (ev.is_channel_event()) {
+                       if (get_channel_mode() == FilterChannels) {
+                               if (((uint16_t(1) << ev.channel()) & get_selected_channels()) == 0) {
+                                       continue;
+                               }
+                       }
+               }
 
                /* ev.time() is in session frames, so (ev.time() - converter.origin_b()) is
                   frames from the start of the source, and so time_beats is in terms of the
@@ -3524,10 +3704,8 @@ MidiRegionView::data_recorded (boost::weak_ptr<MidiSource> w)
                Evoral::MusicalTime const time_beats = converter.from (ev.time () - converter.origin_b ());
 
                if (ev.type() == MIDI_CMD_NOTE_ON) {
-
                        boost::shared_ptr<NoteType> note (
-                               new NoteType (ev.channel(), time_beats, 0, ev.note(), ev.velocity())
-                                                         );
+                               new NoteType (ev.channel(), time_beats, 0, ev.note(), ev.velocity()));
 
                        add_note (note, true);
 
@@ -3554,15 +3732,15 @@ MidiRegionView::trim_front_starting ()
        /* Reparent the note group to the region view's parent, so that it doesn't change
           when the region view is trimmed.
        */
-       _temporary_note_group = new ArdourCanvas::Group (*group->property_parent ());
-       _temporary_note_group->move (group->property_x(), group->property_y());
-       _note_group->reparent (*_temporary_note_group);
+       _temporary_note_group = new ArdourCanvas::Group (group->parent ());
+       _temporary_note_group->move (group->position ());
+       _note_group->reparent (_temporary_note_group);
 }
 
 void
 MidiRegionView::trim_front_ending ()
 {
-       _note_group->reparent (*group);
+       _note_group->reparent (group);
        delete _temporary_note_group;
        _temporary_note_group = 0;
 
@@ -3573,28 +3751,67 @@ MidiRegionView::trim_front_ending ()
 }
 
 void
-MidiRegionView::edit_patch_change (ArdourCanvas::CanvasPatchChange* pc)
+MidiRegionView::edit_patch_change (PatchChange* pc)
 {
-       PatchChangeDialog d (&_source_relative_time_converter, trackview.session(), *pc->patch (), Gtk::Stock::APPLY);
-       if (d.run () != Gtk::RESPONSE_ACCEPT) {
+       PatchChangeDialog d (&_source_relative_time_converter, trackview.session(), *pc->patch (), instrument_info(), Gtk::Stock::APPLY, true);
+
+       int response = d.run();
+
+       switch (response) {
+       case Gtk::RESPONSE_ACCEPT:
+               break;
+       case Gtk::RESPONSE_REJECT:
+               delete_patch_change (pc);
+               return;
+       default:
                return;
        }
 
        change_patch_change (pc->patch(), d.patch ());
 }
 
+void
+MidiRegionView::delete_sysex (SysEx* /*sysex*/)
+{
+       // CAIROCANVAS
+       // sysyex object doesn't have a pointer to a sysex event
+       // MidiModel::SysExDiffCommand* c = _model->new_sysex_diff_command (_("delete sysex"));
+       // c->remove (sysex->sysex());
+       // _model->apply_command (*trackview.session(), c);
+
+       //_sys_exes.clear ();
+       // display_sysexes();
+}
 
 void
 MidiRegionView::show_verbose_cursor (boost::shared_ptr<NoteType> n) const
 {
-       char buf[24];
-       snprintf (buf, sizeof (buf), "%s (%d) Chn %d\nVel %d",
-                 Evoral::midi_note_name (n->note()).c_str(),
+       using namespace MIDI::Name;
+
+       std::string name;
+
+       MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
+       if (mtv) {
+               boost::shared_ptr<MasterDeviceNames> device_names(mtv->get_device_names());
+               if (device_names) {
+                       MIDI::Name::PatchPrimaryKey patch_key;
+                       get_patch_key_at(n->time(), n->channel(), patch_key);
+                       name = device_names->note_name(mtv->gui_property(X_("midnam-custom-device-mode")),
+                                                      n->channel(),
+                                                      patch_key.bank_number,
+                                                      patch_key.program_number,
+                                                      n->note());
+               }
+       }
+
+       char buf[128];
+       snprintf (buf, sizeof (buf), "%d %s\nCh %d Vel %d",
                  (int) n->note (),
+                 name.empty() ? Evoral::midi_note_name (n->note()).c_str() : name.c_str(),
                  (int) n->channel() + 1,
                  (int) n->velocity());
 
-       show_verbose_cursor (buf, 10, 20);
+       show_verbose_cursor(buf, 10, 20);
 }
 
 void
@@ -3602,6 +3819,7 @@ MidiRegionView::show_verbose_cursor (string const & text, double xoffset, double
 {
        double wx, wy;
 
+       trackview.editor().verbose_cursor()->set_text (text);
        trackview.editor().get_pointer_position (wx, wy);
 
        wx += xoffset;
@@ -3609,14 +3827,17 @@ MidiRegionView::show_verbose_cursor (string const & text, double xoffset, double
 
        /* Flip the cursor above the mouse pointer if it would overlap the bottom of the canvas */
 
-       double x1, y1, x2, y2;
-       trackview.editor().verbose_cursor()->canvas_item()->get_bounds (x1, y1, x2, y2);
+       boost::optional<ArdourCanvas::Rect> bbo = trackview.editor().verbose_cursor()->item().bounding_box();
+
+       assert (bbo);
+       
+       ArdourCanvas::Rect bb = bbo.get();
 
-       if ((wy + y2 - y1) > trackview.editor().canvas_height()) {
-               wy -= (y2 - y1) + 2 * yoffset;
+       if ((wy + bb.y1 - bb.y0) > trackview.editor().visible_canvas_height()) {
+               wy -= (bb.y1 - bb.y0) + 2 * yoffset;
        }
 
-       trackview.editor().verbose_cursor()->set (text, wx, wy);
+       trackview.editor().verbose_cursor()->set_position (wx, wy);
        trackview.editor().verbose_cursor()->show ();
 }
 
@@ -3661,3 +3882,25 @@ MidiRegionView::selection_cleared (MidiRegionView* rv)
        /* Clear our selection in sympathy; but don't signal the fact */
        clear_selection (false);
 }
+
+void
+MidiRegionView::note_button_release ()
+{
+       delete _note_player;
+       _note_player = 0;
+}
+
+ChannelMode
+MidiRegionView::get_channel_mode () const
+{
+       RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (&trackview);
+       return rtav->midi_track()->get_playback_channel_mode();
+}
+
+uint16_t
+MidiRegionView::get_selected_channels () const
+{
+       RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (&trackview);
+       return rtav->midi_track()->get_playback_channel_mask();
+}
+