Merge branch 'windows' of git.ardour.org:ardour/ardour into windows
[ardour.git] / gtk2_ardour / midi_region_view.cc
index 299ca8ee507fa92fac615ba50b274e77a1f16c99..9925a52c5c0b58cfd816488c119e64db6e1d8318 100644 (file)
@@ -18,7 +18,6 @@
 */
 
 #include <cmath>
-#include <cassert>
 #include <algorithm>
 #include <ostream>
 
 #include "pbd/memento_command.h"
 #include "pbd/stateful_diff_command.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"
@@ -48,6 +48,7 @@
 #include "canvas-hit.h"
 #include "canvas-note.h"
 #include "canvas_patch_change.h"
+#include "canvas-sysex.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"
@@ -87,7 +90,6 @@ 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)
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
@@ -109,6 +111,7 @@ MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &
        , _last_event_y (0)
        , pre_enter_cursor (0)
        , pre_press_cursor (0)
+       , _note_player (0)
 {
        _note_group->raise_to_top();
        PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
@@ -123,7 +126,6 @@ MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &
                                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
                                 TimeAxisViewItem::Visibility visibility)
        : RegionView (parent, tv, r, spu, basic_color, false, visibility)
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
@@ -145,6 +147,7 @@ MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &
        , _last_event_y (0)
        , pre_enter_cursor (0)
        , pre_press_cursor (0)
+       , _note_player (0)
 {
        _note_group->raise_to_top();
        PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
@@ -167,7 +170,6 @@ MidiRegionView::parameter_changed (std::string const & p)
 MidiRegionView::MidiRegionView (const MidiRegionView& other)
        : sigc::trackable(other)
        , RegionView (other)
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
@@ -189,6 +191,7 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other)
        , _last_event_y (0)
        , pre_enter_cursor (0)
        , pre_press_cursor (0)
+       , _note_player (0)
 {
        Gdk::Color c;
        int r,g,b,a;
@@ -201,7 +204,6 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other)
 
 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
        : RegionView (other, boost::shared_ptr<Region> (region))
-       , _last_channel_selection(0xFFFF)
        , _current_range_min(0)
        , _current_range_max(0)
        , _active_notes(0)
@@ -223,6 +225,7 @@ MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<M
        , _last_event_y (0)
        , pre_enter_cursor (0)
        , pre_press_cursor (0)
+       , _note_player (0)
 {
        Gdk::Color c;
        int r,g,b,a;
@@ -260,8 +263,6 @@ 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;
@@ -271,15 +272,18 @@ 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);
+       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),
                                               boost::bind (&MidiRegionView::snap_changed, this),
@@ -291,6 +295,13 @@ MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
        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>
 MidiRegionView::midi_region() const
 {
@@ -309,6 +320,8 @@ MidiRegionView::connect_to_diskstream ()
 bool
 MidiRegionView::canvas_event(GdkEvent* ev)
 {
+       bool r;
+
        switch (ev->type) {
        case GDK_ENTER_NOTIFY:
        case GDK_LEAVE_NOTIFY:
@@ -324,10 +337,18 @@ MidiRegionView::canvas_event(GdkEvent* ev)
        }
 
        if (ev->type == GDK_2BUTTON_PRESS) {
-               return trackview.editor().toggle_internal_editing_from_double_click (ev);
+               // 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()) {
+       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;
        }
 
@@ -345,7 +366,10 @@ MidiRegionView::canvas_event(GdkEvent* ev)
                return button_press (&ev->button);
 
        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);
@@ -388,6 +412,13 @@ 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;
 }
 
@@ -399,6 +430,11 @@ 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;
 }
 
@@ -596,8 +632,8 @@ MidiRegionView::motion (GdkEventMotion* ev)
                                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) {
@@ -642,13 +678,18 @@ 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;
 }
 
@@ -681,7 +722,11 @@ 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;
@@ -712,9 +757,10 @@ 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);
                }
@@ -724,9 +770,10 @@ 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);
                }
@@ -745,6 +792,10 @@ 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;
@@ -763,20 +814,15 @@ 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 ();
 
@@ -801,6 +847,42 @@ 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 ()
 {
@@ -819,13 +901,14 @@ 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) {
@@ -833,13 +916,11 @@ 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;
@@ -855,9 +936,9 @@ 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) {
@@ -1119,18 +1200,18 @@ 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) {
 
@@ -1138,20 +1219,8 @@ 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);
        }
 }
 
@@ -1201,7 +1270,6 @@ 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()) {
@@ -1221,12 +1289,12 @@ 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().frame_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));
+                       new CanvasSysEx(*this, *_note_group, text, height, x, 1.0, (*i)));
 
                // Show unless message is beyond the region bounds
                if (time - _region->start() >= _region->length() || time < _region->start()) {
@@ -1255,8 +1323,10 @@ MidiRegionView::~MidiRegionView ()
                end_write();
        }
 
+       _selection_cleared_connection.disconnect ();
+
        _selection.clear();
-       clear_events();
+       clear_events (false);
 
        delete _note_group;
        delete _note_diff_command;
@@ -1281,12 +1351,19 @@ 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)->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);
 }
@@ -1401,9 +1478,11 @@ MidiRegionView::add_ghost (TimeAxisView& tv)
 void
 MidiRegionView::begin_write()
 {
-       assert(!_active_notes);
+       if (_active_notes) {
+               delete[] _active_notes;
+       }
        _active_notes = new CanvasNote*[128];
-       for (unsigned i=0; i < 128; ++i) {
+       for (unsigned i = 0; i < 128; ++i) {
                _active_notes[i] = 0;
        }
 }
@@ -1475,13 +1554,15 @@ 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;
@@ -1493,13 +1574,33 @@ 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 ();
 }
 
 
@@ -1541,8 +1642,7 @@ MidiRegionView::update_note (CanvasNote* ev, bool update_ghost_regions)
        ev->property_y2() = y1 + 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()]) {
@@ -1559,7 +1659,7 @@ MidiRegionView::update_note (CanvasNote* ev, bool update_ghost_regions)
                /* outline all edges */
                ev->property_outline_what() = (guint32) 0xF;
        }
-
+       
        if (update_ghost_regions) {
                for (std::vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
                        MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*i);
@@ -1596,9 +1696,6 @@ MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
 {
        CanvasNoteEvent* event = 0;
 
-       assert(note->time() >= 0);
-       assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
-
        //ArdourCanvas::Group* const group = (ArdourCanvas::Group*) get_canvas_group();
 
        if (midi_view()->note_mode() == Sustained) {
@@ -1640,7 +1737,7 @@ 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) {
@@ -1692,56 +1789,81 @@ 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);
 
        double const height = midi_stream_view()->contents_height();
 
        boost::shared_ptr<CanvasPatchChange> patch_change = boost::shared_ptr<CanvasPatchChange>(
-               new CanvasPatchChange(*this, *_note_group,
+               new CanvasPatchChange(*this, *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();
+                                     instrument_info(),
+                                     patch,
+                                     active_channel));
+
+       if (patch_change->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)
 {
@@ -1751,7 +1873,7 @@ 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);
        }
@@ -1840,8 +1962,7 @@ void
 MidiRegionView::previous_patch (CanvasPatchChange& 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);
        }
@@ -1851,47 +1972,32 @@ void
 MidiRegionView::next_patch (CanvasPatchChange& 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 (CanvasPatchChange& 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 (CanvasPatchChange& 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);
-                       }
                }
        }
 }
@@ -1939,9 +2045,7 @@ MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
 void
 MidiRegionView::clear_selection_except (ArdourCanvas::CanvasNoteEvent* 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;
@@ -1949,7 +2053,6 @@ MidiRegionView::clear_selection_except (ArdourCanvas::CanvasNoteEvent* ev, bool
                        (*i)->set_selected (false);
                        (*i)->hide_velocity ();
                        _selection.erase (i);
-                       changed = true;
 
                        i = tmp;
                } else {
@@ -1961,7 +2064,7 @@ MidiRegionView::clear_selection_except (ArdourCanvas::CanvasNoteEvent* ev, bool
           selection.
        */
 
-       if (changed && signal) {
+       if (signal) {
                SelectionCleared (this); /* EMIT SIGNAL */
        }
 }
@@ -2168,43 +2271,18 @@ MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
 void
 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2, bool extend)
 {
-       if (x1 > x2) {
-               swap (x1, x2);
-       }
-
-       if (y1 > y2) {
-               swap (y1, y2);
-       }
-
        // 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) {
-
-               /* 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)->x1() < x2 && (*i)->x2() > x1 && (*i)->y1() < y2 && (*i)->y2() > y1) {
+                       // Rectangles intersect
                        if (!(*i)->selected()) {
                                add_to_selection (*i);
                        }
                } else if ((*i)->selected() && !extend) {
-                       // Not inside rectangle
+                       // Rectangles do not intersect
                        remove_from_selection (*i);
                }
        }
@@ -2222,21 +2300,12 @@ MidiRegionView::update_vertical_drag_selection (double y1, double y2, bool exten
        // 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.
-               */
-
                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);
                }
        }
@@ -2271,7 +2340,7 @@ 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) {
@@ -2312,13 +2381,13 @@ 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);
                }
        }
 }
@@ -2326,11 +2395,9 @@ MidiRegionView::move_selection(double dx, double dy, double cumulative_dy)
 void
 MidiRegionView::note_dropped(CanvasNoteEvent *, 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
 
@@ -2804,9 +2871,10 @@ MidiRegionView::change_note_length (CanvasNoteEvent* event, Evoral::MusicalTime
 }
 
 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;
@@ -2824,8 +2892,8 @@ 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;
                        }
                }
        }
@@ -2835,12 +2903,25 @@ 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",
@@ -3042,18 +3123,42 @@ MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
 }
 
 void
-MidiRegionView::patch_entered (ArdourCanvas::CanvasPatchChange* ev)
+MidiRegionView::patch_entered (ArdourCanvas::CanvasPatchChange* 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->grab_focus();
 }
 
 void
 MidiRegionView::patch_left (ArdourCanvas::CanvasPatchChange *)
 {
        trackview.editor().verbose_cursor()->hide ();
+       /* focus will transfer back via the enter-notify event sent to this
+        * midi region view.
+        */
+}
+
+void
+MidiRegionView::sysex_entered (ArdourCanvas::CanvasSysEx* p)
+{
+       ostringstream s;
+       s << p->text();
+       show_verbose_cursor (s.str(), 10, 20);
+       p->grab_focus();
+}
+
+void
+MidiRegionView::sysex_left (ArdourCanvas::CanvasSysEx *)
+{
+       trackview.editor().verbose_cursor()->hide ();
+       /* focus will transfer back via the enter-notify event sent to this
+        * midi region view.
+        */
 }
 
 void
@@ -3101,28 +3206,28 @@ MidiRegionView::set_frame_color()
 }
 
 void
-MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
+MidiRegionView::midi_channel_mode_changed ()
 {
+       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();
 }
 
@@ -3281,7 +3386,7 @@ 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()) {
@@ -3318,7 +3423,7 @@ 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()) {
@@ -3444,7 +3549,7 @@ 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);
@@ -3567,7 +3672,14 @@ 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
@@ -3577,10 +3689,8 @@ 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);
 
@@ -3628,26 +3738,63 @@ MidiRegionView::trim_front_ending ()
 void
 MidiRegionView::edit_patch_change (ArdourCanvas::CanvasPatchChange* 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 (CanvasSysEx* sysex)
+{
+       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
@@ -3714,3 +3861,25 @@ 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();
+}
+