gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2007 Paul Davis
   3     Author: Dave Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23 #include <ostream>
  24
  25 #include <gtkmm.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include <sigc++/signal.h>
  30
  31 #include "pbd/memento_command.h"
  32 #include "pbd/stateful_diff_command.h"
  33
  34 #include "ardour/playlist.h"
  35 #include "ardour/tempo.h"
  36 #include "ardour/midi_region.h"
  37 #include "ardour/midi_source.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40 #include "ardour/session.h"
  41
  42 #include "evoral/Parameter.hpp"
  43 #include "evoral/Control.hpp"
  44 #include "evoral/midi_util.h"
  45
  46 #include "automation_region_view.h"
  47 #include "automation_time_axis.h"
  48 #include "canvas-hit.h"
  49 #include "canvas-note.h"
  50 #include "canvas-program-change.h"
  51 #include "ghostregion.h"
  52 #include "gui_thread.h"
  53 #include "keyboard.h"
  54 #include "midi_cut_buffer.h"
  55 #include "midi_list_editor.h"
  56 #include "midi_region_view.h"
  57 #include "midi_streamview.h"
  58 #include "midi_time_axis.h"
  59 #include "midi_time_axis.h"
  60 #include "midi_util.h"
  61 #include "public_editor.h"
  62 #include "selection.h"
  63 #include "simpleline.h"
  64 #include "streamview.h"
  65 #include "utils.h"
  66
  67 #include "i18n.h"
  68
  69 using namespace ARDOUR;
  70 using namespace PBD;
  71 using namespace Editing;
  72 using namespace ArdourCanvas;
  73 using Gtkmm2ext::Keyboard;
  74
  75 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  76                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  77         : RegionView (parent, tv, r, spu, basic_color)
  78         , _force_channel(-1)
  79         , _last_channel_selection(0xFFFF)
  80         , _current_range_min(0)
  81         , _current_range_max(0)
  82         , _model_name(string())
  83         , _custom_device_mode(string())
  84         , _active_notes(0)
  85         , _note_group(new ArdourCanvas::Group(*parent))
  86         , _diff_command(0)
  87         , _ghost_note(0)
  88         , _drag_rect (0)
  89         , _mouse_state(None)
  90         , _pressed_button(0)
  91         , _sort_needed (true)
  92         , _optimization_iterator (_events.end())
  93         , _list_editor (0)
  94         , no_sound_notes (false)
  95 {
  96         _note_group->raise_to_top();
  97         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
  98 }
  99
 100 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
 101                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
 102                 TimeAxisViewItem::Visibility visibility)
 103         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 104         , _force_channel(-1)
 105         , _last_channel_selection(0xFFFF)
 106         , _model_name(string())
 107         , _custom_device_mode(string())
 108         , _active_notes(0)
 109         , _note_group(new ArdourCanvas::Group(*parent))
 110         , _diff_command(0)
 111         , _ghost_note(0)
 112         , _drag_rect (0)
 113         , _mouse_state(None)
 114         , _pressed_button(0)
 115         , _sort_needed (true)
 116         , _optimization_iterator (_events.end())
 117         , _list_editor (0)
 118         , no_sound_notes (false)
 119 {
 120         _note_group->raise_to_top();
 121         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 122 }
 123
 124 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 125         : sigc::trackable(other)
 126         , RegionView (other)
 127         , _force_channel(-1)
 128         , _last_channel_selection(0xFFFF)
 129         , _model_name(string())
 130         , _custom_device_mode(string())
 131         , _active_notes(0)
 132         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 133         , _diff_command(0)
 134         , _ghost_note(0)
 135         , _drag_rect (0)
 136         , _mouse_state(None)
 137         , _pressed_button(0)
 138         , _sort_needed (true)
 139         , _optimization_iterator (_events.end())
 140         , _list_editor (0)
 141         , no_sound_notes (false)
 142 {
 143         Gdk::Color c;
 144         int r,g,b,a;
 145
 146         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 147         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 148
 149         init (c, false);
 150 }
 151
 152 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 153         : RegionView (other, boost::shared_ptr<Region> (region))
 154         , _force_channel(-1)
 155         , _last_channel_selection(0xFFFF)
 156         , _model_name(string())
 157         , _custom_device_mode(string())
 158         , _active_notes(0)
 159         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 160         , _diff_command(0)
 161         , _ghost_note(0)
 162         , _drag_rect (0)
 163         , _mouse_state(None)
 164         , _pressed_button(0)
 165         , _sort_needed (true)
 166         , _optimization_iterator (_events.end())
 167         , _list_editor (0)
 168         , no_sound_notes (false)
 169 {
 170         Gdk::Color c;
 171         int r,g,b,a;
 172
 173         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 174         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 175
 176         init (c, true);
 177 }
 178
 179 void
 180 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 181 {
 182         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 183
 184         CanvasNoteEvent::CanvasNoteEventDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
 185                                                          ui_bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
 186                                                          gui_context());
 187
 188         if (wfd) {
 189                 midi_region()->midi_source(0)->load_model();
 190         }
 191
 192         _model = midi_region()->midi_source(0)->model();
 193         _enable_display = false;
 194
 195         RegionView::init (basic_color, false);
 196
 197         compute_colors (basic_color);
 198
 199         set_height (trackview.current_height());
 200
 201         region_muted ();
 202         region_sync_changed ();
 203         region_resized (ARDOUR::bounds_change);
 204         region_locked ();
 205
 206         reset_width_dependent_items (_pixel_width);
 207
 208         set_colors ();
 209
 210         _enable_display = true;
 211         if (_model) {
 212                 if (wfd) {
 213                         display_model (_model);
 214                 }
 215         }
 216
 217         group->raise_to_top();
 218         group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 219
 220         midi_view()->signal_channel_mode_changed().connect(
 221                         sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 222
 223         midi_view()->signal_midi_patch_settings_changed().connect(
 224                         sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 225
 226         trackview.editor().SnapChanged.connect (snap_changed_connection, invalidator (*this), ui_bind (&MidiRegionView::snap_changed, this), gui_context ());
 227 }
 228
 229 bool
 230 MidiRegionView::canvas_event(GdkEvent* ev)
 231 {
 232         if (!trackview.editor().internal_editing()) {
 233                 return false;
 234         }
 235
 236         /* XXX: note that until version 2.30, the GnomeCanvas did not propagate scroll events
 237            to its items, which means that ev->type == GDK_SCROLL will never be seen
 238         */
 239
 240         switch (ev->type) {
 241         case GDK_SCROLL:
 242                 return scroll (&ev->scroll);
 243
 244         case GDK_KEY_PRESS:
 245                 return key_press (&ev->key);
 246
 247         case GDK_KEY_RELEASE:
 248                 return key_release (&ev->key);
 249
 250         case GDK_BUTTON_PRESS:
 251                 return button_press (&ev->button);
 252
 253         case GDK_2BUTTON_PRESS:
 254                 return true;
 255
 256         case GDK_BUTTON_RELEASE:
 257                 return button_release (&ev->button);
 258
 259         case GDK_ENTER_NOTIFY:
 260                 return enter_notify (&ev->crossing);
 261
 262         case GDK_LEAVE_NOTIFY:
 263                 return leave_notify (&ev->crossing);
 264
 265         case GDK_MOTION_NOTIFY:
 266                 return motion (&ev->motion);
 267
 268         default:
 269                 break;
 270         }
 271
 272         return false;
 273 }
 274
 275 bool
 276 MidiRegionView::enter_notify (GdkEventCrossing* ev)
 277 {
 278         /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 279
 280         Keyboard::magic_widget_grab_focus();
 281         group->grab_focus();
 282
 283         if (trackview.editor().current_mouse_mode() == MouseRange) {
 284                 create_ghost_note (ev->x, ev->y);
 285         }
 286
 287         return false;
 288 }
 289
 290 bool
 291 MidiRegionView::leave_notify (GdkEventCrossing* ev)
 292 {
 293         trackview.editor().hide_verbose_canvas_cursor ();
 294         delete _ghost_note;
 295         _ghost_note = 0;
 296         return false;
 297 }
 298
 299 bool
 300 MidiRegionView::button_press (GdkEventButton* ev)
 301 {
 302         _last_x = ev->x;
 303         _last_y = ev->y;
 304         group->w2i (_last_x, _last_y);
 305
 306         if (_mouse_state != SelectTouchDragging && ev->button == 1) {
 307                 _pressed_button = ev->button;
 308                 _mouse_state = Pressed;
 309                 return true;
 310         }
 311         _pressed_button = ev->button;
 312
 313         return true;
 314 }
 315
 316 bool
 317 MidiRegionView::button_release (GdkEventButton* ev)
 318 {
 319         double event_x, event_y;
 320         nframes64_t event_frame = 0;
 321
 322         event_x = ev->x;
 323         event_y = ev->y;
 324         group->w2i(event_x, event_y);
 325         group->ungrab(ev->time);
 326         event_frame = trackview.editor().pixel_to_frame(event_x);
 327
 328         if (ev->button == 3) {
 329                 return false;
 330         } else if (_pressed_button != 1) {
 331                 return false;
 332         }
 333
 334         switch (_mouse_state) {
 335         case Pressed: // Clicked
 336                 switch (trackview.editor().current_mouse_mode()) {
 337                 case MouseObject:
 338                 case MouseTimeFX:
 339                         clear_selection();
 340                         maybe_select_by_position (ev, event_x, event_y);
 341                         break;
 342
 343                 case MouseRange:
 344                 {
 345                         bool success;
 346                         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, trackview.editor().pixel_to_frame (event_x));
 347                         if (!success) {
 348                                 beats = 1;
 349                         }
 350
 351                         create_note_at (event_x, event_y, beats);
 352                         break;
 353                 }
 354                 default:
 355                         break;
 356                 }
 357                 _mouse_state = None;
 358                 break;
 359         case SelectRectDragging: // Select drag done
 360                 _mouse_state = None;
 361                 delete _drag_rect;
 362                 _drag_rect = 0;
 363                 break;
 364
 365         case AddDragging: // Add drag done
 366                 _mouse_state = None;
 367                 if (_drag_rect->property_x2() > _drag_rect->property_x1() + 2) {
 368                         const double x      = _drag_rect->property_x1();
 369                         const double length = trackview.editor().pixel_to_frame
 370                                 (_drag_rect->property_x2() - _drag_rect->property_x1());
 371
 372                         create_note_at (x, _drag_rect->property_y1(), frames_to_beats(length));
 373                 }
 374
 375                 delete _drag_rect;
 376                 _drag_rect = 0;
 377
 378                 create_ghost_note (ev->x, ev->y);
 379
 380         default:
 381                 break;
 382         }
 383
 384         return false;
 385 }
 386
 387 bool
 388 MidiRegionView::motion (GdkEventMotion* ev)
 389 {
 390         double event_x, event_y;
 391         nframes64_t event_frame = 0;
 392
 393         event_x = ev->x;
 394         event_y = ev->y;
 395         group->w2i(event_x, event_y);
 396
 397         // convert event_x to global frame
 398         event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 399         trackview.editor().snap_to(event_frame);
 400         // convert event_frame back to local coordinates relative to position
 401         event_frame -= _region->position();
 402
 403         if (_ghost_note) {
 404                 update_ghost_note (ev->x, ev->y);
 405         }
 406
 407         /* any motion immediately hides velocity text that may have been visible */
 408
 409         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 410                 (*i)->hide_velocity ();
 411         }
 412
 413         switch (_mouse_state) {
 414         case Pressed: // Maybe start a drag, if we've moved a bit
 415
 416                 if (fabs (event_x - _last_x) < 1 && fabs (event_y - _last_y) < 1) {
 417                         /* no appreciable movement since the button was pressed */
 418                         return false;
 419                 }
 420
 421                 // Select drag start
 422                 if (_pressed_button == 1 && trackview.editor().current_mouse_mode() == MouseObject) {
 423                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 424                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 425                         _last_x = event_x;
 426                         _last_y = event_y;
 427                         _drag_start_x = event_x;
 428                         _drag_start_y = event_y;
 429
 430                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 431                         _drag_rect->property_x1() = event_x;
 432                         _drag_rect->property_y1() = event_y;
 433                         _drag_rect->property_x2() = event_x;
 434                         _drag_rect->property_y2() = event_y;
 435                         _drag_rect->property_outline_what() = 0xFF;
 436                         _drag_rect->property_outline_color_rgba()
 437                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 438                         _drag_rect->property_fill_color_rgba()
 439                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 440
 441                         _mouse_state = SelectRectDragging;
 442                         return true;
 443
 444                         // Add note drag start
 445                 } else if (trackview.editor().internal_editing()) {
 446
 447                         delete _ghost_note;
 448                         _ghost_note = 0;
 449
 450                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 451                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 452                         _last_x = event_x;
 453                         _last_y = event_y;
 454                         _drag_start_x = event_x;
 455                         _drag_start_y = event_y;
 456
 457                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 458                         _drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 459
 460                         _drag_rect->property_y1() = midi_stream_view()->note_to_y(
 461                                 midi_stream_view()->y_to_note(event_y));
 462                         _drag_rect->property_x2() = trackview.editor().frame_to_pixel(event_frame);
 463                         _drag_rect->property_y2() = _drag_rect->property_y1()
 464                                 + floor(midi_stream_view()->note_height());
 465                         _drag_rect->property_outline_what() = 0xFF;
 466                         _drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 467                         _drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 468
 469                         _mouse_state = AddDragging;
 470                         return true;
 471                 }
 472
 473                 return false;
 474
 475         case SelectRectDragging: // Select drag motion
 476         case AddDragging: // Add note drag motion
 477                 if (ev->is_hint) {
 478                         int t_x;
 479                         int t_y;
 480                         GdkModifierType state;
 481                         gdk_window_get_pointer(ev->window, &t_x, &t_y, &state);
 482                         event_x = t_x;
 483                         event_y = t_y;
 484                 }
 485
 486                 if (_mouse_state == AddDragging)
 487                         event_x = trackview.editor().frame_to_pixel(event_frame);
 488
 489                 if (_drag_rect) {
 490                         if (event_x > _drag_start_x)
 491                                 _drag_rect->property_x2() = event_x;
 492                         else
 493                                 _drag_rect->property_x1() = event_x;
 494                 }
 495
 496                 if (_drag_rect && _mouse_state == SelectRectDragging) {
 497                         if (event_y > _drag_start_y)
 498                                 _drag_rect->property_y2() = event_y;
 499                         else
 500                                 _drag_rect->property_y1() = event_y;
 501
 502                         update_drag_selection(_drag_start_x, event_x, _drag_start_y, event_y);
 503                 }
 504
 505                 _last_x = event_x;
 506                 _last_y = event_y;
 507
 508         case SelectTouchDragging:
 509                 return false;
 510
 511         default:
 512                 break;
 513         }
 514
 515         return false;
 516 }
 517
 518
 519 bool
 520 MidiRegionView::scroll (GdkEventScroll* ev)
 521 {
 522         if (_selection.empty()) {
 523                 return false;
 524         }
 525
 526         trackview.editor().hide_verbose_canvas_cursor ();
 527
 528         bool fine = Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier);
 529
 530         if (ev->direction == GDK_SCROLL_UP) {
 531                 change_velocities (true, fine, false);
 532         } else if (ev->direction == GDK_SCROLL_DOWN) {
 533                 change_velocities (false, fine, false);
 534         }
 535         return true;
 536 }
 537
 538 bool
 539 MidiRegionView::key_press (GdkEventKey* ev)
 540 {
 541         /* since GTK bindings are generally activated on press, and since
 542            detectable auto-repeat is the name of the game and only sends
 543            repeated presses, carry out key actions at key press, not release.
 544         */
 545
 546         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R){
 547                 _mouse_state = SelectTouchDragging;
 548                 return true;
 549
 550         } else if (ev->keyval == GDK_Escape) {
 551                 clear_selection();
 552                 _mouse_state = None;
 553
 554         } else if (ev->keyval == GDK_comma || ev->keyval == GDK_period) {
 555
 556                 bool start = (ev->keyval == GDK_comma);
 557                 bool end = (ev->keyval == GDK_period);
 558                 bool shorter = Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier);
 559                 bool fine = Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 560
 561                 change_note_lengths (fine, shorter, start, end);
 562
 563                 return true;
 564
 565         } else if (ev->keyval == GDK_Delete) {
 566
 567                 delete_selection();
 568                 return true;
 569
 570         } else if (ev->keyval == GDK_Tab) {
 571
 572                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 573                         goto_previous_note ();
 574                 } else {
 575                         goto_next_note ();
 576                 }
 577                 return true;
 578
 579         } else if (ev->keyval == GDK_Up) {
 580
 581                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 582                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 583
 584                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 585                         change_velocities (true, fine, allow_smush);
 586                 } else {
 587                         transpose (true, fine, allow_smush);
 588                 }
 589                 return true;
 590
 591         } else if (ev->keyval == GDK_Down) {
 592
 593                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 594                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 595
 596                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 597                         change_velocities (false, fine, allow_smush);
 598                 } else {
 599                         transpose (false, fine, allow_smush);
 600                 }
 601                 return true;
 602
 603         } else if (ev->keyval == GDK_Left) {
 604
 605                 nudge_notes (false);
 606                 return true;
 607
 608         } else if (ev->keyval == GDK_Right) {
 609
 610                 nudge_notes (true);
 611                 return true;
 612
 613         } else if (ev->keyval == GDK_Control_L) {
 614                 return true;
 615
 616         } else if (ev->keyval == GDK_r) {
 617                 /* if we're not step editing, this really doesn't matter */
 618                 midi_view()->step_edit_rest ();
 619                 return true;
 620         }
 621
 622         return false;
 623 }
 624
 625 bool
 626 MidiRegionView::key_release (GdkEventKey* ev)
 627 {
 628         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R) {
 629                 _mouse_state = None;
 630                 return true;
 631         }
 632         return false;
 633 }
 634
 635 void
 636 MidiRegionView::show_list_editor ()
 637 {
 638         if (!_list_editor) {
 639                 _list_editor = new MidiListEditor (trackview.session(), midi_region());
 640         }
 641         _list_editor->present ();
 642 }
 643
 644 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 645  * \param x horizontal position in pixels
 646  * \param y vertical position in pixels
 647  * \param length duration of the note in beats */
 648 void
 649 MidiRegionView::create_note_at(double x, double y, double length)
 650 {
 651         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 652         MidiStreamView* const view = mtv->midi_view();
 653
 654         double note = midi_stream_view()->y_to_note(y);
 655
 656         assert(note >= 0.0);
 657         assert(note <= 127.0);
 658
 659         // Start of note in frames relative to region start
 660         nframes64_t const start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 661         assert(start_frames >= 0);
 662
 663         // Snap length
 664         length = frames_to_beats(
 665                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 666
 667         assert (length != 0);
 668
 669         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 670                         frames_to_beats(start_frames + _region->start()), length,
 671                         (uint8_t)note, 0x40));
 672
 673         if (_model->contains (new_note)) {
 674                 return;
 675         }
 676
 677         view->update_note_range(new_note->note());
 678
 679         MidiModel::DiffCommand* cmd = _model->new_diff_command("add note");
 680         cmd->add(new_note);
 681         _model->apply_command(*trackview.session(), cmd);
 682
 683         play_midi_note (new_note);
 684 }
 685
 686 void
 687 MidiRegionView::clear_events()
 688 {
 689         clear_selection();
 690
 691         MidiGhostRegion* gr;
 692         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 693                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 694                         gr->clear_events();
 695                 }
 696         }
 697
 698         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 699                 delete *i;
 700         }
 701
 702         _events.clear();
 703         _pgm_changes.clear();
 704         _sys_exes.clear();
 705         _optimization_iterator = _events.end();
 706 }
 707
 708
 709 void
 710 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 711 {
 712         _model = model;
 713         content_connection.disconnect ();
 714         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 715
 716         clear_events ();
 717
 718         if (_enable_display) {
 719                 redisplay_model();
 720         }
 721 }
 722
 723 void
 724 MidiRegionView::start_diff_command(string name)
 725 {
 726         if (!_diff_command) {
 727                 _diff_command = _model->new_diff_command(name);
 728         }
 729 }
 730
 731 void
 732 MidiRegionView::diff_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 733 {
 734         if (_diff_command) {
 735                 _diff_command->add(note);
 736         }
 737         if (selected) {
 738                 _marked_for_selection.insert(note);
 739         }
 740         if (show_velocity) {
 741                 _marked_for_velocity.insert(note);
 742         }
 743 }
 744
 745 void
 746 MidiRegionView::diff_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 747 {
 748         if (_diff_command && ev->note()) {
 749                 _diff_command->remove(ev->note());
 750         }
 751 }
 752
 753 void
 754 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 755                                  MidiModel::DiffCommand::Property property,
 756                                  uint8_t val)
 757 {
 758         if (_diff_command) {
 759                 _diff_command->change (ev->note(), property, val);
 760         }
 761 }
 762
 763 void
 764 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 765                                  MidiModel::DiffCommand::Property property,
 766                                  Evoral::MusicalTime val)
 767 {
 768         if (_diff_command) {
 769                 _diff_command->change (ev->note(), property, val);
 770         }
 771 }
 772
 773 void
 774 MidiRegionView::apply_diff ()
 775 {
 776         bool add_or_remove;
 777
 778         if (!_diff_command) {
 779                 return;
 780         }
 781
 782         if ((add_or_remove = _diff_command->adds_or_removes())) {
 783                 // Mark all selected notes for selection when model reloads
 784                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 785                         _marked_for_selection.insert((*i)->note());
 786                 }
 787         }
 788
 789         _model->apply_command(*trackview.session(), _diff_command);
 790         _diff_command = 0;
 791         midi_view()->midi_track()->playlist_modified();
 792
 793
 794         if (add_or_remove) {
 795                 _marked_for_selection.clear();
 796         }
 797
 798         _marked_for_velocity.clear();
 799 }
 800
 801 void
 802 MidiRegionView::apply_diff_as_subcommand()
 803 {
 804         bool add_or_remove;
 805
 806         if (!_diff_command) {
 807                 return;
 808         }
 809
 810         if ((add_or_remove = _diff_command->adds_or_removes())) {
 811                 // Mark all selected notes for selection when model reloads
 812                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 813                         _marked_for_selection.insert((*i)->note());
 814                 }
 815         }
 816
 817         _model->apply_command_as_subcommand(*trackview.session(), _diff_command);
 818         _diff_command = 0;
 819         midi_view()->midi_track()->playlist_modified();
 820
 821         if (add_or_remove) {
 822                 _marked_for_selection.clear();
 823         }
 824         _marked_for_velocity.clear();
 825 }
 826
 827
 828 void
 829 MidiRegionView::abort_command()
 830 {
 831         delete _diff_command;
 832         _diff_command = 0;
 833         clear_selection();
 834 }
 835
 836 CanvasNoteEvent*
 837 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 838 {
 839         if (_optimization_iterator != _events.end()) {
 840                 ++_optimization_iterator;
 841         }
 842
 843         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 844                 return *_optimization_iterator;
 845         }
 846
 847         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 848                 if ((*_optimization_iterator)->note() == note) {
 849                         return *_optimization_iterator;
 850                 }
 851         }
 852
 853         return 0;
 854 }
 855
 856 void
 857 MidiRegionView::get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::NoteOperator op, uint8_t val, int chan_mask)
 858 {
 859         MidiModel::Notes notes;
 860         _model->get_notes (notes, op, val, chan_mask);
 861
 862         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 863                 CanvasNoteEvent* cne = find_canvas_note (*n);
 864                 if (cne) {
 865                         e.push_back (cne);
 866                 }
 867         }
 868 }
 869
 870 void
 871 MidiRegionView::redisplay_model()
 872 {
 873         // Don't redisplay the model if we're currently recording and displaying that
 874         if (_active_notes) {
 875                 return;
 876         }
 877
 878         if (!_model) {
 879                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 880                 return;
 881         }
 882
 883         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 884                 (*i)->invalidate ();
 885         }
 886
 887         MidiModel::ReadLock lock(_model->read_lock());
 888
 889         MidiModel::Notes& notes (_model->notes());
 890         _optimization_iterator = _events.begin();
 891
 892         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 893
 894                 boost::shared_ptr<NoteType> note (*n);
 895                 CanvasNoteEvent* cne;
 896                 bool visible;
 897
 898                 if (note_in_region_range (note, visible)) {
 899
 900                         if ((cne = find_canvas_note (note)) != 0) {
 901
 902                                 cne->validate ();
 903
 904                                 CanvasNote* cn;
 905                                 CanvasHit* ch;
 906
 907                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
 908                                         update_note (cn);
 909                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
 910                                         update_hit (ch);
 911                                 }
 912
 913                                 if (visible) {
 914                                         cne->show ();
 915                                 } else {
 916                                         cne->hide ();
 917                                 }
 918
 919                         } else {
 920
 921                                 add_note (note, visible);
 922                         }
 923
 924                 } else {
 925
 926                         if ((cne = find_canvas_note (note)) != 0) {
 927                                 cne->validate ();
 928                                 cne->hide ();
 929                         }
 930                 }
 931         }
 932
 933
 934         /* remove note items that are no longer valid */
 935
 936         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
 937                 if (!(*i)->valid ()) {
 938                         delete *i;
 939                         i = _events.erase (i);
 940                 } else {
 941                         ++i;
 942                 }
 943         }
 944
 945         display_sysexes();
 946         display_program_changes();
 947
 948         _marked_for_selection.clear ();
 949         _marked_for_velocity.clear ();
 950
 951         /* we may have caused _events to contain things out of order (e.g. if a note
 952            moved earlier or later). we don't generally need them in time order, but
 953            make a note that a sort is required for those cases that require it.
 954         */
 955
 956         _sort_needed = true;
 957 }
 958
 959 void
 960 MidiRegionView::display_program_changes()
 961 {
 962         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 963         if (!control) {
 964                 return;
 965         }
 966
 967         Glib::Mutex::Lock lock (control->list()->lock());
 968
 969         uint8_t channel = control->parameter().channel();
 970
 971         for (AutomationList::const_iterator event = control->list()->begin();
 972                         event != control->list()->end(); ++event) {
 973                 double event_time     = (*event)->when;
 974                 double program_number = floor((*event)->value + 0.5);
 975
 976                 // Get current value of bank select MSB at time of the program change
 977                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 978                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 979                 uint8_t msb = 0;
 980                 if (msb_control != 0) {
 981                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 982                 }
 983
 984                 // Get current value of bank select LSB at time of the program change
 985                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 986                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 987                 uint8_t lsb = 0;
 988                 if (lsb_control != 0) {
 989                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 990                 }
 991
 992                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 993
 994                 boost::shared_ptr<MIDI::Name::Patch> patch =
 995                         MIDI::Name::MidiPatchManager::instance().find_patch(
 996                                         _model_name, _custom_device_mode, channel, patch_key);
 997
 998                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 999
1000                 if (patch != 0) {
1001                         add_pgm_change(program_change, patch->name());
1002                 } else {
1003                         char buf[4];
1004                         snprintf(buf, 4, "%d", int(program_number));
1005                         add_pgm_change(program_change, buf);
1006                 }
1007         }
1008 }
1009
1010 void
1011 MidiRegionView::display_sysexes()
1012 {
1013         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1014                 Evoral::MusicalTime time = (*i)->time();
1015                 assert(time >= 0);
1016
1017                 ostringstream str;
1018                 str << hex;
1019                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
1020                         str << int((*i)->buffer()[b]);
1021                         if (b != (*i)->size() -1) {
1022                                 str << " ";
1023                         }
1024                 }
1025                 string text = str.str();
1026
1027                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1028
1029                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
1030
1031                 double height = midi_stream_view()->contents_height();
1032
1033                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
1034                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
1035
1036                 // Show unless program change is beyond the region bounds
1037                 if (time - _region->start() >= _region->length() || time < _region->start()) {
1038                         sysex->hide();
1039                 } else {
1040                         sysex->show();
1041                 }
1042
1043                 _sys_exes.push_back(sysex);
1044         }
1045 }
1046
1047
1048 MidiRegionView::~MidiRegionView ()
1049 {
1050         in_destructor = true;
1051
1052         note_delete_connection.disconnect ();
1053
1054         delete _list_editor;
1055
1056         RegionViewGoingAway (this); /* EMIT_SIGNAL */
1057
1058         if (_active_notes) {
1059                 end_write();
1060         }
1061
1062         _selection.clear();
1063         clear_events();
1064         delete _note_group;
1065         delete _diff_command;
1066 }
1067
1068 void
1069 MidiRegionView::region_resized (const PropertyChange& what_changed)
1070 {
1071         RegionView::region_resized(what_changed);
1072
1073         if (what_changed.contains (ARDOUR::Properties::position)) {
1074                 set_duration(_region->length(), 0);
1075                 if (_enable_display) {
1076                         redisplay_model();
1077                 }
1078         }
1079 }
1080
1081 void
1082 MidiRegionView::reset_width_dependent_items (double pixel_width)
1083 {
1084         RegionView::reset_width_dependent_items(pixel_width);
1085         assert(_pixel_width == pixel_width);
1086
1087         if (_enable_display) {
1088                 redisplay_model();
1089         }
1090 }
1091
1092 void
1093 MidiRegionView::set_height (double height)
1094 {
1095         static const double FUDGE = 2.0;
1096         const double old_height = _height;
1097         RegionView::set_height(height);
1098         _height = height - FUDGE;
1099
1100         apply_note_range(midi_stream_view()->lowest_note(),
1101                          midi_stream_view()->highest_note(),
1102                          height != old_height + FUDGE);
1103
1104         if (name_pixbuf) {
1105                 name_pixbuf->raise_to_top();
1106         }
1107 }
1108
1109
1110 /** Apply the current note range from the stream view
1111  * by repositioning/hiding notes as necessary
1112  */
1113 void
1114 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1115 {
1116         if (!_enable_display) {
1117                 return;
1118         }
1119
1120         if (!force && _current_range_min == min && _current_range_max == max) {
1121                 return;
1122         }
1123
1124         _current_range_min = min;
1125         _current_range_max = max;
1126
1127         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1128                 CanvasNoteEvent* event = *i;
1129                 boost::shared_ptr<NoteType> note (event->note());
1130
1131                 if (note->note() < _current_range_min ||
1132                     note->note() > _current_range_max) {
1133                         event->hide();
1134                 } else {
1135                         event->show();
1136                 }
1137
1138                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1139
1140                         const double y1 = midi_stream_view()->note_to_y(note->note());
1141                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1142
1143                         cnote->property_y1() = y1;
1144                         cnote->property_y2() = y2;
1145
1146                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1147
1148                         double x = trackview.editor().frame_to_pixel(
1149                                 beats_to_frames(note->time()) - _region->start());
1150                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1151                         double y = midi_stream_view()->note_to_y(event->note()->note())
1152                                 + ((diamond_size-2.0) / 4.0);
1153
1154                         chit->set_height (diamond_size);
1155                         chit->move (x - chit->x1(), y - chit->y1());
1156                         chit->show ();
1157                 }
1158         }
1159 }
1160
1161 GhostRegion*
1162 MidiRegionView::add_ghost (TimeAxisView& tv)
1163 {
1164         CanvasNote* note;
1165
1166         double unit_position = _region->position () / samples_per_unit;
1167         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1168         MidiGhostRegion* ghost;
1169
1170         if (mtv && mtv->midi_view()) {
1171                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1172                    to allow having midi notes on top of note lines and waveforms.
1173                  */
1174                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1175         } else {
1176                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1177         }
1178
1179         ghost->set_height ();
1180         ghost->set_duration (_region->length() / samples_per_unit);
1181         ghosts.push_back (ghost);
1182
1183         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1184                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1185                         ghost->add_note(note);
1186                 }
1187         }
1188
1189         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
1190
1191         return ghost;
1192 }
1193
1194
1195 /** Begin tracking note state for successive calls to add_event
1196  */
1197 void
1198 MidiRegionView::begin_write()
1199 {
1200         assert(!_active_notes);
1201         _active_notes = new CanvasNote*[128];
1202         for (unsigned i=0; i < 128; ++i) {
1203                 _active_notes[i] = 0;
1204         }
1205 }
1206
1207
1208 /** Destroy note state for add_event
1209  */
1210 void
1211 MidiRegionView::end_write()
1212 {
1213         delete[] _active_notes;
1214         _active_notes = 0;
1215         _marked_for_selection.clear();
1216         _marked_for_velocity.clear();
1217 }
1218
1219
1220 /** Resolve an active MIDI note (while recording).
1221  */
1222 void
1223 MidiRegionView::resolve_note(uint8_t note, double end_time)
1224 {
1225         if (midi_view()->note_mode() != Sustained) {
1226                 return;
1227         }
1228
1229         if (_active_notes && _active_notes[note]) {
1230                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1231                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1232                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1233                 _active_notes[note] = 0;
1234         }
1235 }
1236
1237
1238 /** Extend active notes to rightmost edge of region (if length is changed)
1239  */
1240 void
1241 MidiRegionView::extend_active_notes()
1242 {
1243         if (!_active_notes) {
1244                 return;
1245         }
1246
1247         for (unsigned i=0; i < 128; ++i) {
1248                 if (_active_notes[i]) {
1249                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1250                 }
1251         }
1252 }
1253
1254 void
1255 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1256 {
1257         if (no_sound_notes || !trackview.editor().sound_notes()) {
1258                 return;
1259         }
1260
1261         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1262         assert(route_ui);
1263
1264         route_ui->midi_track()->write_immediate_event(
1265                         note->on_event().size(), note->on_event().buffer());
1266
1267         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1268         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1269                         * (1000 / (double)route_ui->session()->nominal_frame_rate());
1270         Glib::signal_timeout().connect(sigc::bind(sigc::mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1271                         note_length_ms, G_PRIORITY_DEFAULT);
1272 }
1273
1274 bool
1275 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1276 {
1277         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1278         assert(route_ui);
1279
1280         route_ui->midi_track()->write_immediate_event(
1281                         note->off_event().size(), note->off_event().buffer());
1282
1283         return false;
1284 }
1285
1286 bool
1287 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1288 {
1289         const nframes64_t note_start_frames = beats_to_frames(note->time());
1290
1291         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1292                 (note_start_frames < _region->start());
1293
1294         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1295                 (note->note() <= midi_stream_view()->highest_note());
1296
1297         return !outside;
1298 }
1299
1300 void
1301 MidiRegionView::update_note (CanvasNote* ev)
1302 {
1303         boost::shared_ptr<NoteType> note = ev->note();
1304
1305         const nframes64_t note_start_frames = beats_to_frames(note->time());
1306         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1307
1308         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1309         const double y1 = midi_stream_view()->note_to_y(note->note());
1310         const double note_endpixel = trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1311
1312         ev->property_x1() = x;
1313         ev->property_y1() = y1;
1314         if (note->length() > 0) {
1315                 ev->property_x2() = note_endpixel;
1316         } else {
1317                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1318         }
1319         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1320
1321         if (note->length() == 0) {
1322                 if (_active_notes) {
1323                         assert(note->note() < 128);
1324                         // If this note is already active there's a stuck note,
1325                         // finish the old note rectangle
1326                         if (_active_notes[note->note()]) {
1327                                 CanvasNote* const old_rect = _active_notes[note->note()];
1328                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1329                                 old_rect->property_x2() = x;
1330                                 old_rect->property_outline_what() = (guint32) 0xF;
1331                         }
1332                         _active_notes[note->note()] = ev;
1333                 }
1334                 /* outline all but right edge */
1335                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1336         } else {
1337                 /* outline all edges */
1338                 ev->property_outline_what() = (guint32) 0xF;
1339         }
1340 }
1341
1342 void
1343 MidiRegionView::update_hit (CanvasHit* ev)
1344 {
1345         boost::shared_ptr<NoteType> note = ev->note();
1346
1347         const nframes64_t note_start_frames = beats_to_frames(note->time());
1348         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1349         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1350         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1351
1352         ev->move_to (x, y);
1353 }
1354
1355 /** Add a MIDI note to the view (with length).
1356  *
1357  * If in sustained mode, notes with length 0 will be considered active
1358  * notes, and resolve_note should be called when the corresponding note off
1359  * event arrives, to properly display the note.
1360  */
1361 void
1362 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1363 {
1364         CanvasNoteEvent* event = 0;
1365
1366         assert(note->time() >= 0);
1367         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1368
1369         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1370
1371         if (midi_view()->note_mode() == Sustained) {
1372
1373                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1374
1375                 update_note (ev_rect);
1376
1377                 event = ev_rect;
1378
1379                 MidiGhostRegion* gr;
1380
1381                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1382                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1383                                 gr->add_note(ev_rect);
1384                         }
1385                 }
1386
1387         } else if (midi_view()->note_mode() == Percussive) {
1388
1389                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1390
1391                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1392
1393                 update_hit (ev_diamond);
1394
1395                 event = ev_diamond;
1396
1397         } else {
1398                 event = 0;
1399         }
1400
1401         if (event) {
1402                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1403                         note_selected(event, true);
1404                 }
1405
1406                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1407                         event->show_velocity();
1408                 }
1409                 event->on_channel_selection_change(_last_channel_selection);
1410                 _events.push_back(event);
1411
1412                 if (visible) {
1413                         event->show();
1414                 } else {
1415                         event->hide ();
1416                 }
1417         }
1418 }
1419
1420 void
1421 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1422                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
1423 {
1424         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1425
1426         start_diff_command (_("step add"));
1427         diff_add_note (new_note, true, false);
1428         apply_diff();
1429
1430         /* potentially extend region to hold new note */
1431
1432         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1433         nframes64_t region_end = _region->position() + _region->length() - 1;
1434
1435         if (end_frame > region_end) {
1436                 _region->set_length (end_frame, this);
1437         } else {
1438                 redisplay_model ();
1439         }
1440 }
1441
1442 void
1443 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1444 {
1445         assert(program.time >= 0);
1446
1447         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1448         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1449
1450         double height = midi_stream_view()->contents_height();
1451
1452         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1453                         new CanvasProgramChange(*this, *group,
1454                                         displaytext,
1455                                         height,
1456                                         x, 1.0,
1457                                         _model_name,
1458                                         _custom_device_mode,
1459                                         program.time, program.channel, program.value));
1460
1461         // Show unless program change is beyond the region bounds
1462         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1463                 pgm_change->hide();
1464         } else {
1465                 pgm_change->show();
1466         }
1467
1468         _pgm_changes.push_back(pgm_change);
1469 }
1470
1471 void
1472 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1473 {
1474         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1475         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1476         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1477         float msb = -1.0;
1478         if (msb_control != 0) {
1479                 msb = int(msb_control->get_float(true, time));
1480                 cerr << "got msb " << msb;
1481         }
1482
1483         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1484         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1485         float lsb = -1.0;
1486         if (lsb_control != 0) {
1487                 lsb = lsb_control->get_float(true, time);
1488                 cerr << " got lsb " << lsb;
1489         }
1490
1491         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1492         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1493         float program_number = -1.0;
1494         if (program_control != 0) {
1495                 program_number = program_control->get_float(true, time);
1496                 cerr << " got program " << program_number << endl;
1497         }
1498
1499         key.msb = (int) floor(msb + 0.5);
1500         key.lsb = (int) floor(lsb + 0.5);
1501         key.program_number = (int) floor(program_number + 0.5);
1502         assert(key.is_sane());
1503 }
1504
1505
1506 void
1507 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1508 {
1509         // TODO: Get the real event here and alter them at the original times
1510         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1511         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1512         if (msb_control != 0) {
1513                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1514         }
1515
1516         // TODO: Get the real event here and alter them at the original times
1517         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1518         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1519         if (lsb_control != 0) {
1520                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1521         }
1522
1523         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1524         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1525
1526         assert(program_control != 0);
1527         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1528
1529         redisplay_model();
1530 }
1531
1532 void
1533 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1534 {
1535         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1536         alter_program_change(program_change_event, new_patch);
1537 }
1538
1539 void
1540 MidiRegionView::previous_program(CanvasProgramChange& program)
1541 {
1542         MIDI::Name::PatchPrimaryKey key;
1543         get_patch_key_at(program.event_time(), program.channel(), key);
1544
1545         boost::shared_ptr<MIDI::Name::Patch> patch =
1546                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1547                                 _model_name,
1548                                 _custom_device_mode,
1549                                 program.channel(),
1550                                 key);
1551
1552         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1553         if (patch) {
1554                 alter_program_change(program_change_event, patch->patch_primary_key());
1555         }
1556 }
1557
1558 void
1559 MidiRegionView::next_program(CanvasProgramChange& program)
1560 {
1561         MIDI::Name::PatchPrimaryKey key;
1562         get_patch_key_at(program.event_time(), program.channel(), key);
1563
1564         boost::shared_ptr<MIDI::Name::Patch> patch =
1565                 MIDI::Name::MidiPatchManager::instance().next_patch(
1566                                 _model_name,
1567                                 _custom_device_mode,
1568                                 program.channel(),
1569                                 key);
1570
1571         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1572         if (patch) {
1573                 alter_program_change(program_change_event, patch->patch_primary_key());
1574         }
1575 }
1576
1577 void
1578 MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
1579 {
1580         if (_selection.empty()) {
1581                 return;
1582         }
1583
1584         if (_selection.erase (cne) > 0) {
1585                 cerr << "Erased a CNE from selection\n";
1586         }
1587 }
1588
1589 void
1590 MidiRegionView::delete_selection()
1591 {
1592         if (_selection.empty()) {
1593                 return;
1594         }
1595
1596         start_diff_command (_("delete selection"));
1597
1598         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1599                 if ((*i)->selected()) {
1600                         _diff_command->remove((*i)->note());
1601                 }
1602         }
1603
1604         _selection.clear();
1605
1606         apply_diff ();
1607 }
1608
1609 void
1610 MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
1611 {
1612         start_diff_command (_("delete note"));
1613         _diff_command->remove (n);
1614         apply_diff ();
1615
1616         trackview.editor().hide_verbose_canvas_cursor ();
1617 }
1618
1619 void
1620 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1621 {
1622         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1623                 if ((*i)->selected() && (*i) != ev) {
1624                         (*i)->selected(false);
1625                         (*i)->hide_velocity();
1626                 }
1627         }
1628
1629         _selection.clear();
1630 }
1631
1632 void
1633 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1634 {
1635         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1636                 if ((*i) != ev) {
1637
1638                         Selection::iterator tmp = i;
1639                         ++tmp;
1640
1641                         (*i)->selected (false);
1642                         _selection.erase (i);
1643
1644                         i = tmp;
1645
1646                 } else {
1647                         ++i;
1648                 }
1649         }
1650
1651         /* don't bother with removing this regionview from the editor selection,
1652            since we're about to add another note, and thus put/keep this
1653            regionview in the editor selection.
1654         */
1655
1656         if (!ev->selected()) {
1657                 add_to_selection (ev);
1658         }
1659 }
1660
1661 void
1662 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
1663 {
1664         uint8_t low_note = 127;
1665         uint8_t high_note = 0;
1666         MidiModel::Notes& notes (_model->notes());
1667         _optimization_iterator = _events.begin();
1668
1669         if (!add) {
1670                 clear_selection ();
1671         }
1672
1673         if (extend && _selection.empty()) {
1674                 extend = false;
1675         }
1676
1677         if (extend) {
1678
1679                 /* scan existing selection to get note range */
1680
1681                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1682                         if ((*i)->note()->note() < low_note) {
1683                                 low_note = (*i)->note()->note();
1684                         }
1685                         if ((*i)->note()->note() > high_note) {
1686                                 high_note = (*i)->note()->note();
1687                         }
1688                 }
1689
1690                 low_note = min (low_note, notenum);
1691                 high_note = max (high_note, notenum);
1692         }
1693
1694         no_sound_notes = true;
1695
1696         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1697
1698                 boost::shared_ptr<NoteType> note (*n);
1699                 CanvasNoteEvent* cne;
1700                 bool select = false;
1701
1702                 if (((1 << note->channel()) & channel_mask) != 0) {
1703                         if (extend) {
1704                                 if ((note->note() >= low_note && note->note() <= high_note)) {
1705                                         select = true;
1706                                 }
1707                         } else if (note->note() == notenum) {
1708                                 select = true;
1709                         }
1710                 }
1711
1712                 if (select) {
1713                         if ((cne = find_canvas_note (note)) != 0) {
1714                                 // extend is false because we've taken care of it,
1715                                 // since it extends by time range, not pitch.
1716                                 note_selected (cne, add, false);
1717                         }
1718                 }
1719
1720                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
1721
1722         }
1723
1724         no_sound_notes = false;
1725 }
1726
1727 void
1728 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
1729 {
1730         MidiModel::Notes& notes (_model->notes());
1731         _optimization_iterator = _events.begin();
1732
1733         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1734
1735                 boost::shared_ptr<NoteType> note (*n);
1736                 CanvasNoteEvent* cne;
1737
1738                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
1739                         if ((cne = find_canvas_note (note)) != 0) {
1740                                 if (cne->selected()) {
1741                                         note_deselected (cne);
1742                                 } else {
1743                                         note_selected (cne, true, false);
1744                                 }
1745                         }
1746                 }
1747         }
1748 }
1749
1750 void
1751 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1752 {
1753         if (!add) {
1754                 clear_selection_except(ev);
1755         }
1756
1757         if (!extend) {
1758
1759                 if (!ev->selected()) {
1760                         add_to_selection (ev);
1761                 }
1762
1763         } else {
1764                 /* find end of latest note selected, select all between that and the start of "ev" */
1765
1766                 Evoral::MusicalTime earliest = DBL_MAX;
1767                 Evoral::MusicalTime latest = 0;
1768
1769                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1770                         if ((*i)->note()->end_time() > latest) {
1771                                 latest = (*i)->note()->end_time();
1772                         }
1773                         if ((*i)->note()->time() < earliest) {
1774                                 earliest = (*i)->note()->time();
1775                         }
1776                 }
1777
1778                 if (ev->note()->end_time() > latest) {
1779                         latest = ev->note()->end_time();
1780                 }
1781
1782                 if (ev->note()->time() < earliest) {
1783                         earliest = ev->note()->time();
1784                 }
1785
1786                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1787
1788                         /* find notes entirely within OR spanning the earliest..latest range */
1789
1790                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1791                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1792                                 add_to_selection (*i);
1793                         }
1794
1795 #if 0
1796                         /* if events were guaranteed to be time sorted, we could do this.
1797                            but as of sept 10th 2009, they no longer are.
1798                         */
1799
1800                         if ((*i)->note()->time() > latest) {
1801                                 break;
1802                         }
1803 #endif
1804                 }
1805         }
1806 }
1807
1808 void
1809 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1810 {
1811         remove_from_selection (ev);
1812 }
1813
1814 void
1815 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1816 {
1817         if (x1 > x2) {
1818                 swap (x1, x2);
1819         }
1820
1821         if (y1 > y2) {
1822                 swap (y1, y2);
1823         }
1824
1825         // TODO: Make this faster by storing the last updated selection rect, and only
1826         // adjusting things that are in the area that appears/disappeared.
1827         // We probably need a tree to be able to find events in O(log(n)) time.
1828
1829         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1830
1831                 /* check if any corner of the note is inside the rect
1832
1833                    Notes:
1834                      1) this is computing "touched by", not "contained by" the rect.
1835                      2) this does not require that events be sorted in time.
1836                  */
1837
1838                 const double ix1 = (*i)->x1();
1839                 const double ix2 = (*i)->x2();
1840                 const double iy1 = (*i)->y1();
1841                 const double iy2 = (*i)->y2();
1842
1843                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1844                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1845                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1846                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1847
1848                         // Inside rectangle
1849                         if (!(*i)->selected()) {
1850                                 add_to_selection (*i);
1851                         }
1852                 } else if ((*i)->selected()) {
1853                         // Not inside rectangle
1854                         remove_from_selection (*i);
1855                 }
1856         }
1857 }
1858
1859 void
1860 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1861 {
1862         Selection::iterator i = _selection.find (ev);
1863
1864         if (i != _selection.end()) {
1865                 _selection.erase (i);
1866         }
1867
1868         ev->selected (false);
1869         ev->hide_velocity ();
1870
1871         if (_selection.empty()) {
1872                 PublicEditor& editor (trackview.editor());
1873                 editor.get_selection().remove (this);
1874         }
1875 }
1876
1877 void
1878 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1879 {
1880         bool add_mrv_selection = false;
1881
1882         if (_selection.empty()) {
1883                 add_mrv_selection = true;
1884         }
1885
1886         if (_selection.insert (ev).second) {
1887                 ev->selected (true);
1888                 play_midi_note ((ev)->note());
1889         }
1890
1891         if (add_mrv_selection) {
1892                 PublicEditor& editor (trackview.editor());
1893                 editor.get_selection().add (this);
1894         }
1895 }
1896
1897 void
1898 MidiRegionView::move_selection(double dx, double dy)
1899 {
1900         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1901                 (*i)->move_event(dx, dy);
1902         }
1903 }
1904
1905 void
1906 MidiRegionView::note_dropped(CanvasNoteEvent *, double dt, int8_t dnote)
1907 {
1908         assert (!_selection.empty());
1909
1910         uint8_t lowest_note_in_selection  = 127;
1911         uint8_t highest_note_in_selection = 0;
1912         uint8_t highest_note_difference = 0;
1913
1914         // find highest and lowest notes first
1915
1916         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1917                 uint8_t pitch = (*i)->note()->note();
1918                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1919                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1920         }
1921
1922         /*
1923         cerr << "dnote: " << (int) dnote << endl;
1924         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1925              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1926         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1927              << int(highest_note_in_selection) << endl;
1928         cerr << "selection size: " << _selection.size() << endl;
1929         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1930         */
1931
1932         // Make sure the note pitch does not exceed the MIDI standard range
1933         if (highest_note_in_selection + dnote > 127) {
1934                 highest_note_difference = highest_note_in_selection - 127;
1935         }
1936
1937         start_diff_command(_("move notes"));
1938
1939         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1940
1941                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1942
1943                 if (dt >= 0) {
1944                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1945                 } else {
1946                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1947                 }
1948
1949                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1950
1951                 if (new_time < 0) {
1952                         continue;
1953                 }
1954
1955                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1956
1957                 uint8_t original_pitch = (*i)->note()->note();
1958                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1959
1960                 // keep notes in standard midi range
1961                 clamp_to_0_127(new_pitch);
1962
1963                 // keep original pitch if note is dragged outside valid midi range
1964                 if ((original_pitch != 0 && new_pitch == 0)
1965                                 || (original_pitch != 127 && new_pitch == 127)) {
1966                         new_pitch = original_pitch;
1967                 }
1968
1969                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1970                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1971
1972                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1973         }
1974
1975         apply_diff();
1976
1977         // care about notes being moved beyond the upper/lower bounds on the canvas
1978         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1979             highest_note_in_selection > midi_stream_view()->highest_note()) {
1980                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1981         }
1982 }
1983
1984 nframes64_t
1985 MidiRegionView::snap_pixel_to_frame(double x)
1986 {
1987         PublicEditor& editor = trackview.editor();
1988         // x is region relative, convert it to global absolute frames
1989         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1990         editor.snap_to(frame);
1991         return frame - _region->position(); // convert back to region relative
1992 }
1993
1994 nframes64_t
1995 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1996 {
1997         PublicEditor& editor = trackview.editor();
1998         // x is region relative, convert it to global absolute frames
1999         nframes64_t frame = x + _region->position();
2000         editor.snap_to(frame);
2001         return frame - _region->position(); // convert back to region relative
2002 }
2003
2004 double
2005 MidiRegionView::snap_to_pixel(double x)
2006 {
2007         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
2008 }
2009
2010 double
2011 MidiRegionView::get_position_pixels()
2012 {
2013         nframes64_t region_frame = get_position();
2014         return trackview.editor().frame_to_pixel(region_frame);
2015 }
2016
2017 double
2018 MidiRegionView::get_end_position_pixels()
2019 {
2020         nframes64_t frame = get_position() + get_duration ();
2021         return trackview.editor().frame_to_pixel(frame);
2022 }
2023
2024 nframes64_t
2025 MidiRegionView::beats_to_frames(double beats) const
2026 {
2027         return _time_converter.to(beats);
2028 }
2029
2030 double
2031 MidiRegionView::frames_to_beats(nframes64_t frames) const
2032 {
2033         return _time_converter.from(frames);
2034 }
2035
2036 void
2037 MidiRegionView::begin_resizing (bool /*at_front*/)
2038 {
2039         _resize_data.clear();
2040
2041         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2042                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
2043
2044                 // only insert CanvasNotes into the map
2045                 if (note) {
2046                         NoteResizeData *resize_data = new NoteResizeData();
2047                         resize_data->canvas_note = note;
2048
2049                         // create a new SimpleRect from the note which will be the resize preview
2050                         SimpleRect *resize_rect = new SimpleRect(
2051                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
2052
2053                         // calculate the colors: get the color settings
2054                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
2055                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
2056                                         128);
2057
2058                         // make the resize preview notes more transparent and bright
2059                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
2060
2061                         // calculate color based on note velocity
2062                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
2063                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
2064                                         fill_color,
2065                                         0.85);
2066
2067                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
2068                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
2069
2070                         resize_data->resize_rect = resize_rect;
2071                         _resize_data.push_back(resize_data);
2072                 }
2073         }
2074 }
2075
2076 /** Update resizing notes while user drags.
2077  * @param primary `primary' note for the drag; ie the one that is used as the reference in non-relative mode.
2078  * @param at_front which end of the note (true == note on, false == note off)
2079  * @param delta_x change in mouse position since the start of the drag
2080  * @param relative true if relative resizing is taking place, false if absolute resizing.  This only makes
2081  * a difference when multiple notes are being resized; in relative mode, each note's length is changed by the
2082  * amount of the drag.  In non-relative mode, all selected notes are set to have the same start or end point
2083  * as the \a primary note.
2084  */
2085 void
2086 MidiRegionView::update_resizing (ArdourCanvas::CanvasNote* primary, bool at_front, double delta_x, bool relative)
2087 {
2088         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2089                 SimpleRect* resize_rect = (*i)->resize_rect;
2090                 CanvasNote* canvas_note = (*i)->canvas_note;
2091                 double current_x;
2092
2093                 if (at_front) {
2094                         if (relative) {
2095                                 current_x = canvas_note->x1() + delta_x;
2096                         } else {
2097                                 current_x = primary->x1() + delta_x;
2098                         }
2099                 } else {
2100                         if (relative) {
2101                                 current_x = canvas_note->x2() + delta_x;
2102                         } else {
2103                                 current_x = primary->x2() + delta_x;
2104                         }
2105                 }
2106
2107                 if (at_front) {
2108                         resize_rect->property_x1() = snap_to_pixel(current_x);
2109                         resize_rect->property_x2() = canvas_note->x2();
2110                 } else {
2111                         resize_rect->property_x2() = snap_to_pixel(current_x);
2112                         resize_rect->property_x1() = canvas_note->x1();
2113                 }
2114         }
2115 }
2116
2117
2118 /** Finish resizing notes when the user releases the mouse button.
2119  *  Parameters the same as for \a update_resizing().
2120  */
2121 void
2122 MidiRegionView::commit_resizing (ArdourCanvas::CanvasNote* primary, bool at_front, double delta_x, bool relative)
2123 {
2124         start_diff_command(_("resize notes"));
2125
2126         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2127                 CanvasNote*  canvas_note = (*i)->canvas_note;
2128                 SimpleRect*  resize_rect = (*i)->resize_rect;
2129                 double current_x;
2130
2131                 if (at_front) {
2132                         if (relative) {
2133                                 current_x = canvas_note->x1() + delta_x;
2134                         } else {
2135                                 current_x = primary->x1() + delta_x;
2136                         }
2137                 } else {
2138                         if (relative) {
2139                                 current_x = canvas_note->x2() + delta_x;
2140                         } else {
2141                                 current_x = primary->x2() + delta_x;
2142                         }
2143                 }
2144
2145                 current_x = snap_pixel_to_frame (current_x);
2146                 current_x = frames_to_beats (current_x);
2147
2148                 if (at_front && current_x < canvas_note->note()->end_time()) {
2149                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
2150
2151                         double len = canvas_note->note()->time() - current_x;
2152                         len += canvas_note->note()->length();
2153
2154                         if (len > 0) {
2155                                 /* XXX convert to beats */
2156                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
2157                         }
2158                 }
2159
2160                 if (!at_front) {
2161                         double len = current_x - canvas_note->note()->time();
2162
2163                         if (len > 0) {
2164                                 /* XXX convert to beats */
2165                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
2166                         }
2167                 }
2168
2169                 delete resize_rect;
2170                 delete (*i);
2171         }
2172
2173         _resize_data.clear();
2174         apply_diff();
2175 }
2176
2177 void
2178 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
2179 {
2180         uint8_t new_velocity;
2181
2182         if (relative) {
2183                 new_velocity = event->note()->velocity() + velocity;
2184                 clamp_to_0_127(new_velocity);
2185         } else {
2186                 new_velocity = velocity;
2187         }
2188
2189         event->show_velocity ();
2190
2191         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
2192 }
2193
2194 void
2195 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
2196 {
2197         uint8_t new_note;
2198
2199         if (relative) {
2200                 new_note = event->note()->note() + note;
2201         } else {
2202                 new_note = note;
2203         }
2204
2205         clamp_to_0_127 (new_note);
2206         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
2207 }
2208
2209 void
2210 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
2211 {
2212         bool change_start = false;
2213         bool change_length = false;
2214         Evoral::MusicalTime new_start;
2215         Evoral::MusicalTime new_length;
2216
2217         /* NOTE: the semantics of the two delta arguments are slightly subtle:
2218
2219            front_delta: if positive - move the start of the note later in time (shortening it)
2220                         if negative - move the start of the note earlier in time (lengthening it)
2221
2222            end_delta:   if positive - move the end of the note later in time (lengthening it)
2223                         if negative - move the end of the note earlier in time (shortening it)
2224          */
2225
2226         if (front_delta) {
2227                 if (front_delta < 0) {
2228
2229                         if (event->note()->time() < -front_delta) {
2230                                 new_start = 0;
2231                         } else {
2232                                 new_start = event->note()->time() + front_delta; // moves earlier
2233                         }
2234
2235                         /* start moved toward zero, so move the end point out to where it used to be.
2236                            Note that front_delta is negative, so this increases the length.
2237                         */
2238
2239                         new_length = event->note()->length() - front_delta;
2240                         change_start = true;
2241                         change_length = true;
2242
2243                 } else {
2244
2245                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2246
2247                         if (new_pos < event->note()->end_time()) {
2248                                 new_start = event->note()->time() + front_delta;
2249                                 /* start moved toward the end, so move the end point back to where it used to be */
2250                                 new_length = event->note()->length() - front_delta;
2251                                 change_start = true;
2252                                 change_length = true;
2253                         }
2254                 }
2255
2256         }
2257
2258         if (end_delta) {
2259                 bool can_change = true;
2260                 if (end_delta < 0) {
2261                         if (event->note()->length() < -end_delta) {
2262                                 can_change = false;
2263                         }
2264                 }
2265
2266                 if (can_change) {
2267                         new_length = event->note()->length() + end_delta;
2268                         change_length = true;
2269                 }
2270         }
2271
2272         if (change_start) {
2273                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
2274         }
2275
2276         if (change_length) {
2277                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
2278         }
2279 }
2280
2281 void
2282 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2283 {
2284         Evoral::MusicalTime new_time;
2285
2286         if (relative) {
2287                 if (delta < 0.0) {
2288                         if (event->note()->time() < -delta) {
2289                                 new_time = 0;
2290                         } else {
2291                                 new_time = event->note()->time() + delta;
2292                         }
2293                 } else {
2294                         new_time = event->note()->time() + delta;
2295                 }
2296         } else {
2297                 new_time = delta;
2298         }
2299
2300         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
2301 }
2302
2303 void
2304 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2305 {
2306         int8_t delta;
2307
2308         if (_selection.empty()) {
2309                 return;
2310         }
2311
2312         if (fine) {
2313                 delta = 1;
2314         } else {
2315                 delta = 10;
2316         }
2317
2318         if (!up) {
2319                 delta = -delta;
2320         }
2321
2322         if (!allow_smush) {
2323                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2324                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2325                                 return;
2326                         }
2327                 }
2328         }
2329
2330         start_diff_command(_("change velocities"));
2331
2332         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2333                 Selection::iterator next = i;
2334                 ++next;
2335                 change_note_velocity (*i, delta, true);
2336                 i = next;
2337         }
2338
2339         apply_diff();
2340 }
2341
2342
2343 void
2344 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2345 {
2346         if (_selection.empty()) {
2347                 return;
2348         }
2349
2350         int8_t delta;
2351
2352         if (fine) {
2353                 delta = 1;
2354         } else {
2355                 delta = 12;
2356         }
2357
2358         if (!up) {
2359                 delta = -delta;
2360         }
2361
2362         if (!allow_smush) {
2363                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2364                         if (!up) {
2365                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2366                                         return;
2367                                 }
2368                         } else {
2369                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2370                                         return;
2371                                 }
2372                         }
2373                 }
2374         }
2375
2376         start_diff_command (_("transpose"));
2377
2378         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2379                 Selection::iterator next = i;
2380                 ++next;
2381                 change_note_note (*i, delta, true);
2382                 i = next;
2383         }
2384
2385         apply_diff ();
2386 }
2387
2388 void
2389 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2390 {
2391         Evoral::MusicalTime delta;
2392
2393         if (fine) {
2394                 delta = 1.0/128.0;
2395         } else {
2396                 /* grab the current grid distance */
2397                 bool success;
2398                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2399                 if (!success) {
2400                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2401                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2402                         return;
2403                 }
2404         }
2405
2406         if (shorter) {
2407                 delta = -delta;
2408         }
2409
2410         start_diff_command (_("change note lengths"));
2411
2412         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2413                 Selection::iterator next = i;
2414                 ++next;
2415
2416                 /* note the negation of the delta for start */
2417
2418                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2419                 i = next;
2420         }
2421
2422         apply_diff ();
2423
2424 }
2425
2426 void
2427 MidiRegionView::nudge_notes (bool forward)
2428 {
2429         if (_selection.empty()) {
2430                 return;
2431         }
2432
2433         /* pick a note as the point along the timeline to get the nudge distance.
2434            its not necessarily the earliest note, so we may want to pull the notes out
2435            into a vector and sort before using the first one.
2436         */
2437
2438         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2439         nframes64_t unused;
2440         nframes64_t distance;
2441
2442         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2443
2444                 /* grid is off - use nudge distance */
2445
2446                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2447
2448         } else {
2449
2450                 /* use grid */
2451
2452                 nframes64_t next_pos = ref_point;
2453
2454                 if (forward) {
2455                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2456                         next_pos += 1;
2457                 } else {
2458                         if (next_pos == 0) {
2459                                 return;
2460                         }
2461                         next_pos -= 1;
2462                 }
2463
2464                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2465                 distance = ref_point - next_pos;
2466         }
2467
2468         if (distance == 0) {
2469                 return;
2470         }
2471
2472         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2473
2474         if (!forward) {
2475                 delta = -delta;
2476         }
2477
2478         start_diff_command (_("nudge"));
2479
2480         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2481                 Selection::iterator next = i;
2482                 ++next;
2483                 change_note_time (*i, delta, true);
2484                 i = next;
2485         }
2486
2487         apply_diff ();
2488 }
2489
2490 void
2491 MidiRegionView::change_channel(uint8_t channel)
2492 {
2493         start_diff_command(_("change channel"));
2494         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2495                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2496         }
2497
2498         apply_diff();
2499 }
2500
2501
2502 void
2503 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2504 {
2505         if (_mouse_state == SelectTouchDragging) {
2506                 note_selected (ev, true);
2507         }
2508
2509         show_verbose_canvas_cursor (ev->note ());
2510 }
2511
2512 void
2513 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent* note)
2514 {
2515         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2516                 (*i)->hide_velocity ();
2517         }
2518
2519         trackview.editor().hide_verbose_canvas_cursor ();
2520 }
2521
2522 void
2523 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2524 {
2525         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2526         if (msrc)
2527                 display_model(msrc->model());
2528 }
2529
2530 void
2531 MidiRegionView::set_frame_color()
2532 {
2533         if (frame) {
2534                 if (_selected && should_show_selection) {
2535                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2536                 } else {
2537                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2538                 }
2539         }
2540 }
2541
2542 void
2543 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2544 {
2545         switch (mode) {
2546         case AllChannels:
2547         case FilterChannels:
2548                 _force_channel = -1;
2549                 break;
2550         case ForceChannel:
2551                 _force_channel = mask;
2552                 mask = 0xFFFF; // Show all notes as active (below)
2553         };
2554
2555         // Update notes for selection
2556         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2557                 (*i)->on_channel_selection_change(mask);
2558         }
2559
2560         _last_channel_selection = mask;
2561 }
2562
2563 void
2564 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2565 {
2566         _model_name         = model;
2567         _custom_device_mode = custom_device_mode;
2568         redisplay_model();
2569 }
2570
2571 void
2572 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2573 {
2574         if (_selection.empty()) {
2575                 return;
2576         }
2577
2578         PublicEditor& editor (trackview.editor());
2579
2580         switch (op) {
2581         case Cut:
2582         case Copy:
2583                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2584                 break;
2585         default:
2586                 break;
2587         }
2588
2589         if (op != Copy) {
2590
2591                 start_diff_command();
2592
2593                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2594                         switch (op) {
2595                         case Copy:
2596                                 break;
2597                         case Cut:
2598                         case Clear:
2599                                 diff_remove_note (*i);
2600                                 break;
2601                         }
2602                 }
2603
2604                 apply_diff();
2605         }
2606 }
2607
2608 MidiCutBuffer*
2609 MidiRegionView::selection_as_cut_buffer () const
2610 {
2611         Notes notes;
2612
2613         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2614                 NoteType* n = (*i)->note().get();
2615                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
2616         }
2617
2618         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2619         cb->set (notes);
2620
2621         return cb;
2622 }
2623
2624 void
2625 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2626 {
2627         if (mcb.empty()) {
2628                 return;
2629         }
2630
2631         start_diff_command (_("paste"));
2632
2633         Evoral::MusicalTime beat_delta;
2634         Evoral::MusicalTime paste_pos_beats;
2635         Evoral::MusicalTime duration;
2636         Evoral::MusicalTime end_point;
2637
2638         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2639         paste_pos_beats = frames_to_beats (pos - _region->position());
2640         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2641         paste_pos_beats = 0;
2642
2643         _selection.clear ();
2644
2645         for (int n = 0; n < (int) times; ++n) {
2646
2647                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2648
2649                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2650                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2651
2652                         /* make all newly added notes selected */
2653
2654                         diff_add_note (copied_note, true);
2655                         end_point = copied_note->end_time();
2656                 }
2657
2658                 paste_pos_beats += duration;
2659         }
2660
2661         /* if we pasted past the current end of the region, extend the region */
2662
2663         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2664         nframes64_t region_end = _region->position() + _region->length() - 1;
2665
2666         if (end_frame > region_end) {
2667
2668                 trackview.session()->begin_reversible_command (_("paste"));
2669
2670                 _region->clear_history ();
2671                 _region->set_length (end_frame, this);
2672                 trackview.session()->add_command (new StatefulDiffCommand (_region));
2673         }
2674
2675         apply_diff ();
2676 }
2677
2678 struct EventNoteTimeEarlyFirstComparator {
2679     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2680             return a->note()->time() < b->note()->time();
2681     }
2682 };
2683
2684 void
2685 MidiRegionView::time_sort_events ()
2686 {
2687         if (!_sort_needed) {
2688                 return;
2689         }
2690
2691         EventNoteTimeEarlyFirstComparator cmp;
2692         _events.sort (cmp);
2693
2694         _sort_needed = false;
2695 }
2696
2697 void
2698 MidiRegionView::goto_next_note ()
2699 {
2700         // nframes64_t pos = -1;
2701         bool use_next = false;
2702
2703         if (_events.back()->selected()) {
2704                 return;
2705         }
2706
2707         time_sort_events ();
2708
2709         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2710                 if ((*i)->selected()) {
2711                         use_next = true;
2712                         continue;
2713                 } else if (use_next) {
2714                         unique_select (*i);
2715                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2716                         return;
2717                 }
2718         }
2719
2720         /* use the first one */
2721
2722         unique_select (_events.front());
2723
2724 }
2725
2726 void
2727 MidiRegionView::goto_previous_note ()
2728 {
2729         // nframes64_t pos = -1;
2730         bool use_next = false;
2731
2732         if (_events.front()->selected()) {
2733                 return;
2734         }
2735
2736         time_sort_events ();
2737
2738         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2739                 if ((*i)->selected()) {
2740                         use_next = true;
2741                         continue;
2742                 } else if (use_next) {
2743                         unique_select (*i);
2744                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2745                         return;
2746                 }
2747         }
2748
2749         /* use the last one */
2750
2751         unique_select (*(_events.rbegin()));
2752 }
2753
2754 void
2755 MidiRegionView::selection_as_notelist (Notes& selected, bool allow_all_if_none_selected)
2756 {
2757         bool had_selected = false;
2758
2759         time_sort_events ();
2760
2761         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2762                 if ((*i)->selected()) {
2763                         selected.insert ((*i)->note());
2764                         had_selected = true;
2765                 }
2766         }
2767
2768         if (allow_all_if_none_selected && !had_selected) {
2769                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2770                         selected.insert ((*i)->note());
2771                 }
2772         }
2773 }
2774
2775 void
2776 MidiRegionView::update_ghost_note (double x, double y)
2777 {
2778         _last_ghost_x = x;
2779         _last_ghost_y = y;
2780
2781         group->w2i (x, y);
2782         nframes64_t f = trackview.editor().pixel_to_frame (x) + _region->position ();
2783         trackview.editor().snap_to (f);
2784         f -= _region->position ();
2785
2786         bool success;
2787         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, f);
2788         if (!success) {
2789                 beats = 1;
2790         }
2791
2792         double length = frames_to_beats (snap_frame_to_frame (f + beats_to_frames (beats)) - f);
2793
2794         _ghost_note->note()->set_time (frames_to_beats (f + _region->start()));
2795         _ghost_note->note()->set_length (length);
2796         _ghost_note->note()->set_note (midi_stream_view()->y_to_note (y));
2797
2798         update_note (_ghost_note);
2799
2800         show_verbose_canvas_cursor (_ghost_note->note ());
2801 }
2802
2803 void
2804 MidiRegionView::create_ghost_note (double x, double y)
2805 {
2806         delete _ghost_note;
2807         _ghost_note = 0;
2808
2809         boost::shared_ptr<NoteType> g (new NoteType);
2810         _ghost_note = new NoEventCanvasNote (*this, *group, g);
2811         update_ghost_note (x, y);
2812         _ghost_note->show ();
2813
2814         _last_ghost_x = x;
2815         _last_ghost_y = y;
2816
2817         show_verbose_canvas_cursor (_ghost_note->note ());
2818 }
2819
2820 void
2821 MidiRegionView::snap_changed ()
2822 {
2823         if (!_ghost_note) {
2824                 return;
2825         }
2826
2827         create_ghost_note (_last_ghost_x, _last_ghost_y);
2828 }
2829
2830 void
2831 MidiRegionView::show_verbose_canvas_cursor (boost::shared_ptr<NoteType> n) const
2832 {
2833         char buf[12];
2834         snprintf (buf, sizeof (buf), "%s (%d)", Evoral::midi_note_name (n->note()).c_str(), (int) n->note ());
2835         trackview.editor().show_verbose_canvas_cursor_with (buf);
2836 }
2837
2838 void
2839 MidiRegionView::drop_down_keys ()
2840 {
2841         _mouse_state = None;
2842 }
2843
2844 void
2845 MidiRegionView::maybe_select_by_position (GdkEventButton* ev, double x, double y)
2846 {
2847         double note = midi_stream_view()->y_to_note(y);
2848         Events e;
2849         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
2850
2851         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
2852
2853         if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
2854                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchGreaterThanOrEqual, (uint8_t) floor (note), chn_mask);
2855         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
2856                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchLessThanOrEqual, (uint8_t) floor (note), chn_mask);
2857         } else {
2858                 return;
2859         }
2860
2861         bool add_mrv_selection = false;
2862
2863         if (_selection.empty()) {
2864                 add_mrv_selection = true;
2865         }
2866
2867         for (Events::iterator i = e.begin(); i != e.end(); ++i) {
2868                 if (_selection.insert (*i).second) {
2869                         (*i)->selected (true);
2870                 }
2871         }
2872
2873         if (add_mrv_selection) {
2874                 PublicEditor& editor (trackview.editor());
2875                 editor.get_selection().add (this);
2876         }
2877 }