gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2011 Paul Davis
   3     Author: David 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/MIDIParameters.hpp"
  44 #include "evoral/Control.hpp"
  45 #include "evoral/midi_util.h"
  46
  47 #include "automation_region_view.h"
  48 #include "automation_time_axis.h"
  49 #include "canvas-hit.h"
  50 #include "canvas-note.h"
  51 #include "canvas_patch_change.h"
  52 #include "debug.h"
  53 #include "editor.h"
  54 #include "ghostregion.h"
  55 #include "gui_thread.h"
  56 #include "keyboard.h"
  57 #include "midi_channel_dialog.h"
  58 #include "midi_cut_buffer.h"
  59 #include "midi_list_editor.h"
  60 #include "midi_region_view.h"
  61 #include "midi_streamview.h"
  62 #include "midi_time_axis.h"
  63 #include "midi_util.h"
  64 #include "note_player.h"
  65 #include "public_editor.h"
  66 #include "rgb_macros.h"
  67 #include "selection.h"
  68 #include "simpleline.h"
  69 #include "streamview.h"
  70 #include "utils.h"
  71 #include "mouse_cursors.h"
  72 #include "patch_change_dialog.h"
  73 #include "verbose_cursor.h"
  74
  75 #include "i18n.h"
  76
  77 using namespace ARDOUR;
  78 using namespace PBD;
  79 using namespace Editing;
  80 using namespace ArdourCanvas;
  81 using Gtkmm2ext::Keyboard;
  82
  83 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  84                                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  85         : RegionView (parent, tv, r, spu, basic_color)
  86         , _force_channel(-1)
  87         , _last_channel_selection(0xFFFF)
  88         , _current_range_min(0)
  89         , _current_range_max(0)
  90         , _model_name(string())
  91         , _custom_device_mode(string())
  92         , _active_notes(0)
  93         , _note_group(new ArdourCanvas::Group(*group))
  94         , _note_diff_command (0)
  95         , _ghost_note(0)
  96         , _drag_rect (0)
  97         , _step_edit_cursor (0)
  98         , _step_edit_cursor_width (1.0)
  99         , _step_edit_cursor_position (0.0)
 100         , _channel_selection_scoped_note (0)
 101         , _temporary_note_group (0)
 102         , _mouse_state(None)
 103         , _pressed_button(0)
 104         , _sort_needed (true)
 105         , _optimization_iterator (_events.end())
 106         , _list_editor (0)
 107         , _no_sound_notes (false)
 108         , _last_event_x (0)
 109         , _last_event_y (0)
 110         , _pre_enter_cursor (0)
 111 {
 112         _note_group->raise_to_top();
 113         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 114
 115         connect_to_diskstream ();
 116 }
 117
 118 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
 119                                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
 120                                 TimeAxisViewItem::Visibility visibility)
 121         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 122         , _force_channel(-1)
 123         , _last_channel_selection(0xFFFF)
 124         , _model_name(string())
 125         , _custom_device_mode(string())
 126         , _active_notes(0)
 127         , _note_group(new ArdourCanvas::Group(*parent))
 128         , _note_diff_command (0)
 129         , _ghost_note(0)
 130         , _drag_rect (0)
 131         , _step_edit_cursor (0)
 132         , _step_edit_cursor_width (1.0)
 133         , _step_edit_cursor_position (0.0)
 134         , _channel_selection_scoped_note (0)
 135         , _temporary_note_group (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         , _last_event_x (0)
 143         , _last_event_y (0)
 144 {
 145         _note_group->raise_to_top();
 146         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 147
 148         connect_to_diskstream ();
 149 }
 150
 151 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 152         : sigc::trackable(other)
 153         , RegionView (other)
 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         , _note_diff_command (0)
 161         , _ghost_note(0)
 162         , _drag_rect (0)
 163         , _step_edit_cursor (0)
 164         , _step_edit_cursor_width (1.0)
 165         , _step_edit_cursor_position (0.0)
 166         , _channel_selection_scoped_note (0)
 167         , _temporary_note_group (0)
 168         , _mouse_state(None)
 169         , _pressed_button(0)
 170         , _sort_needed (true)
 171         , _optimization_iterator (_events.end())
 172         , _list_editor (0)
 173         , _no_sound_notes (false)
 174         , _last_event_x (0)
 175         , _last_event_y (0)
 176 {
 177         Gdk::Color c;
 178         int r,g,b,a;
 179
 180         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 181         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 182
 183         init (c, false);
 184 }
 185
 186 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 187         : RegionView (other, boost::shared_ptr<Region> (region))
 188         , _force_channel(-1)
 189         , _last_channel_selection(0xFFFF)
 190         , _model_name(string())
 191         , _custom_device_mode(string())
 192         , _active_notes(0)
 193         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 194         , _note_diff_command (0)
 195         , _ghost_note(0)
 196         , _drag_rect (0)
 197         , _step_edit_cursor (0)
 198         , _step_edit_cursor_width (1.0)
 199         , _step_edit_cursor_position (0.0)
 200         , _channel_selection_scoped_note (0)
 201         , _temporary_note_group (0)
 202         , _mouse_state(None)
 203         , _pressed_button(0)
 204         , _sort_needed (true)
 205         , _optimization_iterator (_events.end())
 206         , _list_editor (0)
 207         , _no_sound_notes (false)
 208         , _last_event_x (0)
 209         , _last_event_y (0)
 210 {
 211         Gdk::Color c;
 212         int r,g,b,a;
 213
 214         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 215         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 216
 217         init (c, true);
 218 }
 219
 220 void
 221 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 222 {
 223         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 224
 225         CanvasNoteEvent::CanvasNoteEventDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
 226                                                          ui_bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
 227                                                          gui_context());
 228
 229         if (wfd) {
 230                 midi_region()->midi_source(0)->load_model();
 231         }
 232
 233         _model = midi_region()->midi_source(0)->model();
 234         _enable_display = false;
 235
 236         RegionView::init (basic_color, false);
 237
 238         compute_colors (basic_color);
 239
 240         set_height (trackview.current_height());
 241
 242         region_muted ();
 243         region_sync_changed ();
 244         region_resized (ARDOUR::bounds_change);
 245         region_locked ();
 246
 247         reset_width_dependent_items (_pixel_width);
 248
 249         set_colors ();
 250
 251         _enable_display = true;
 252         if (_model) {
 253                 if (wfd) {
 254                         display_model (_model);
 255                 }
 256         }
 257
 258         group->raise_to_top();
 259         group->signal_event().connect(
 260                 sigc::mem_fun(this, &MidiRegionView::canvas_event), false);
 261
 262         midi_view()->signal_channel_mode_changed().connect(
 263                 sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 264
 265         midi_view()->signal_midi_patch_settings_changed().connect(
 266                 sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 267
 268         trackview.editor().SnapChanged.connect(snap_changed_connection, invalidator(*this),
 269                                                ui_bind(&MidiRegionView::snap_changed, this),
 270                                                gui_context());
 271
 272         connect_to_diskstream ();
 273 }
 274
 275 void
 276 MidiRegionView::connect_to_diskstream ()
 277 {
 278         midi_view()->midi_track()->DataRecorded.connect(
 279                 *this, invalidator(*this),
 280                 ui_bind(&MidiRegionView::data_recorded, this, _1, _2),
 281                 gui_context());
 282 }
 283
 284 bool
 285 MidiRegionView::canvas_event(GdkEvent* ev)
 286 {
 287         switch (ev->type) {
 288         case GDK_ENTER_NOTIFY:
 289         case GDK_LEAVE_NOTIFY:
 290                 _last_event_x = ev->crossing.x;
 291                 _last_event_y = ev->crossing.y;
 292                 break;
 293         case GDK_MOTION_NOTIFY:
 294                 _last_event_x = ev->motion.x;
 295                 _last_event_y = ev->motion.y;
 296                 break;
 297         default:
 298                 break;
 299         }
 300
 301         if (!trackview.editor().internal_editing()) {
 302                 return false;
 303         }
 304
 305         switch (ev->type) {
 306         case GDK_SCROLL:
 307                 return scroll (&ev->scroll);
 308
 309         case GDK_KEY_PRESS:
 310                 return key_press (&ev->key);
 311
 312         case GDK_KEY_RELEASE:
 313                 return key_release (&ev->key);
 314
 315         case GDK_BUTTON_PRESS:
 316                 return button_press (&ev->button);
 317
 318         case GDK_2BUTTON_PRESS:
 319                 return true;
 320
 321         case GDK_BUTTON_RELEASE:
 322                 return button_release (&ev->button);
 323
 324         case GDK_ENTER_NOTIFY:
 325                 return enter_notify (&ev->crossing);
 326
 327         case GDK_LEAVE_NOTIFY:
 328                 return leave_notify (&ev->crossing);
 329
 330         case GDK_MOTION_NOTIFY:
 331                 return motion (&ev->motion);
 332
 333         default:
 334                 break;
 335         }
 336
 337         return false;
 338 }
 339
 340 void
 341 MidiRegionView::remove_ghost_note ()
 342 {
 343         delete _ghost_note;
 344         _ghost_note = 0;
 345 }
 346
 347 bool
 348 MidiRegionView::enter_notify (GdkEventCrossing* ev)
 349 {
 350         trackview.editor().MouseModeChanged.connect (
 351                 _mouse_mode_connection, invalidator (*this), ui_bind (&MidiRegionView::mouse_mode_changed, this), gui_context ()
 352                                                      );
 353
 354         Keyboard::magic_widget_grab_focus();
 355         group->grab_focus();
 356
 357         if (trackview.editor().current_mouse_mode() == MouseRange) {
 358                 create_ghost_note (ev->x, ev->y);
 359         }
 360
 361         return false;
 362 }
 363
 364 bool
 365 MidiRegionView::leave_notify (GdkEventCrossing*)
 366 {
 367         _mouse_mode_connection.disconnect ();
 368
 369         trackview.editor().verbose_cursor()->hide ();
 370         remove_ghost_note ();
 371         return false;
 372 }
 373
 374 void
 375 MidiRegionView::mouse_mode_changed ()
 376 {
 377         if (trackview.editor().current_mouse_mode() == MouseRange && trackview.editor().internal_editing()) {
 378                 create_ghost_note (_last_event_x, _last_event_y);
 379         } else {
 380                 remove_ghost_note ();
 381                 trackview.editor().verbose_cursor()->hide ();
 382         }
 383 }
 384
 385 bool
 386 MidiRegionView::button_press (GdkEventButton* ev)
 387 {
 388         if (ev->button != 1) {
 389                 return false;
 390         }
 391
 392         _last_x = ev->x;
 393         _last_y = ev->y;
 394
 395         group->w2i (_last_x, _last_y);
 396
 397         if (_mouse_state != SelectTouchDragging) {
 398
 399                 _pressed_button = ev->button;
 400                 _mouse_state = Pressed;
 401
 402                 return true;
 403         }
 404
 405         _pressed_button = ev->button;
 406
 407         return true;
 408 }
 409
 410 bool
 411 MidiRegionView::button_release (GdkEventButton* ev)
 412 {
 413         double event_x, event_y;
 414
 415         if (ev->button != 1) {
 416                 return false;
 417         }
 418
 419         event_x = ev->x;
 420         event_y = ev->y;
 421
 422         group->w2i(event_x, event_y);
 423         group->ungrab(ev->time);
 424
 425         switch (_mouse_state) {
 426         case Pressed: // Clicked
 427
 428                 switch (trackview.editor().current_mouse_mode()) {
 429                 case MouseObject:
 430                 case MouseTimeFX:
 431                         {
 432                                 clear_selection();
 433
 434                                 if (Keyboard::is_insert_note_event(ev)) {
 435
 436                                         double event_x, event_y;
 437
 438                                         event_x = ev->x;
 439                                         event_y = ev->y;
 440                                         group->w2i(event_x, event_y);
 441
 442                                         bool success;
 443                                         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, trackview.editor().pixel_to_frame (event_x));
 444
 445                                         if (!success) {
 446                                                 beats = 1;
 447                                         }
 448
 449                                         create_note_at (event_x, event_y, beats, true);
 450                                 }
 451
 452                                 break;
 453                         }
 454                 case MouseRange:
 455                         {
 456                                 bool success;
 457                                 Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, trackview.editor().pixel_to_frame (event_x));
 458
 459                                 if (!success) {
 460                                         beats = 1;
 461                                 }
 462
 463                                 create_note_at (event_x, event_y, beats, true);
 464
 465                                 break;
 466                         }
 467                 default:
 468                         break;
 469                 }
 470
 471                 _mouse_state = None;
 472                 break;
 473
 474         case SelectRectDragging: // Select drag done
 475
 476                 _mouse_state = None;
 477                 delete _drag_rect;
 478                 _drag_rect = 0;
 479                 break;
 480
 481         case AddDragging: // Add drag done
 482
 483                 _mouse_state = None;
 484
 485                 if (Keyboard::is_insert_note_event(ev) || trackview.editor().current_mouse_mode() == MouseRange) {
 486
 487                         if (_drag_rect->property_x2() > _drag_rect->property_x1() + 2) {
 488
 489                                 const double x  = _drag_rect->property_x1();
 490                                 const double length = trackview.editor().pixel_to_frame (_drag_rect->property_x2() - _drag_rect->property_x1());
 491
 492                                 create_note_at (x, _drag_rect->property_y1(), frames_to_beats(length), true);
 493                         }
 494                 }
 495
 496                 delete _drag_rect;
 497                 _drag_rect = 0;
 498
 499                 create_ghost_note (ev->x, ev->y);
 500
 501         default:
 502                 break;
 503         }
 504
 505         return false;
 506 }
 507
 508 bool
 509 MidiRegionView::motion (GdkEventMotion* ev)
 510 {
 511         double event_x, event_y;
 512         framepos_t event_frame = 0;
 513
 514         event_x = ev->x;
 515         event_y = ev->y;
 516         group->w2i(event_x, event_y);
 517
 518         // convert event_x to global frame
 519         event_frame = snap_pixel_to_frame (event_x);
 520
 521         if (!_ghost_note && trackview.editor().current_mouse_mode() != MouseRange
 522             && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())
 523             && _mouse_state != AddDragging) {
 524
 525                 create_ghost_note (ev->x, ev->y);
 526         } else if (_ghost_note && trackview.editor().current_mouse_mode() != MouseRange
 527                    && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 528
 529                 update_ghost_note (ev->x, ev->y);
 530         } else if (_ghost_note && trackview.editor().current_mouse_mode() != MouseRange) {
 531
 532                 delete _ghost_note;
 533                 _ghost_note = 0;
 534
 535                 trackview.editor().verbose_cursor()->hide ();
 536         } else if (_ghost_note && trackview.editor().current_mouse_mode() == MouseRange) {
 537                 update_ghost_note (ev->x, ev->y);
 538         }
 539
 540         /* any motion immediately hides velocity text that may have been visible */
 541
 542         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 543                 (*i)->hide_velocity ();
 544         }
 545
 546         switch (_mouse_state) {
 547         case Pressed: // Maybe start a drag, if we've moved a bit
 548
 549                 if (fabs (event_x - _last_x) < 1 && fabs (event_y - _last_y) < 1) {
 550                         /* no appreciable movement since the button was pressed */
 551                         return false;
 552                 }
 553
 554                 if (_pressed_button == 1 && trackview.editor().current_mouse_mode() == MouseObject
 555                     && !Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 556                         // Select drag start
 557
 558                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 559                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 560
 561                         _last_x = event_x;
 562                         _last_y = event_y;
 563                         _drag_start_x = event_x;
 564                         _drag_start_y = event_y;
 565
 566                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 567                         _drag_rect->property_x1() = event_x;
 568                         _drag_rect->property_y1() = event_y;
 569                         _drag_rect->property_x2() = event_x;
 570                         _drag_rect->property_y2() = event_y;
 571                         _drag_rect->property_outline_what() = 0xFF;
 572                         _drag_rect->property_outline_color_rgba()
 573                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 574                         _drag_rect->property_fill_color_rgba()
 575                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 576
 577                         _mouse_state = SelectRectDragging;
 578                         return true;
 579
 580                 } else if (trackview.editor().internal_editing()) {
 581                         // Add note drag start
 582
 583                         delete _ghost_note;
 584                         _ghost_note = 0;
 585
 586                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 587                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 588
 589                         _last_x = event_x;
 590                         _last_y = event_y;
 591                         _drag_start_x = event_x;
 592                         _drag_start_y = event_y;
 593
 594                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 595                         _drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 596
 597                         _drag_rect->property_y1() = midi_stream_view()->note_to_y(
 598                                 midi_stream_view()->y_to_note(event_y));
 599                         _drag_rect->property_x2() = trackview.editor().frame_to_pixel(event_frame);
 600                         _drag_rect->property_y2() = _drag_rect->property_y1()
 601                                 + floor(midi_stream_view()->note_height());
 602                         _drag_rect->property_outline_what() = 0xFF;
 603                         _drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 604                         _drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 605
 606                         _mouse_state = AddDragging;
 607
 608                         if (_ghost_note) {
 609
 610                                 delete _ghost_note;
 611                                 _ghost_note = 0;
 612
 613                                 trackview.editor().verbose_cursor()->hide ();
 614                         }
 615
 616                         return true;
 617                 }
 618
 619                 return false;
 620
 621         case SelectRectDragging: // Select drag motion
 622         case AddDragging: // Add note drag motion
 623
 624                 if (ev->is_hint) {
 625                         int t_x;
 626                         int t_y;
 627                         GdkModifierType state;
 628                         gdk_window_get_pointer(ev->window, &t_x, &t_y, &state);
 629                         event_x = t_x;
 630                         event_y = t_y;
 631                 }
 632
 633                 if (_mouse_state == AddDragging) {
 634                         event_x = trackview.editor().frame_to_pixel(event_frame);
 635                 }
 636
 637                 if (_drag_rect) {
 638
 639                         if (event_x > _drag_start_x) {
 640                                 _drag_rect->property_x2() = event_x;
 641                         }
 642                         else {
 643                                 _drag_rect->property_x1() = event_x;
 644                         }
 645                 }
 646
 647                 if (_drag_rect && _mouse_state == SelectRectDragging) {
 648
 649                         if (event_y > _drag_start_y) {
 650                                 _drag_rect->property_y2() = event_y;
 651                         }
 652                         else {
 653                                 _drag_rect->property_y1() = event_y;
 654                         }
 655
 656                         update_drag_selection(_drag_start_x, event_x, _drag_start_y, event_y);
 657                 }
 658
 659                 _last_x = event_x;
 660                 _last_y = event_y;
 661
 662         case SelectTouchDragging:
 663                 return false;
 664
 665         default:
 666                 break;
 667         }
 668
 669         return false;
 670 }
 671
 672
 673 bool
 674 MidiRegionView::scroll (GdkEventScroll* ev)
 675 {
 676         if (_selection.empty()) {
 677                 return false;
 678         }
 679
 680         trackview.editor().verbose_cursor()->hide ();
 681
 682         bool fine = !Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier);
 683
 684         if (ev->direction == GDK_SCROLL_UP) {
 685                 change_velocities (true, fine, false);
 686         } else if (ev->direction == GDK_SCROLL_DOWN) {
 687                 change_velocities (false, fine, false);
 688         }
 689         return true;
 690 }
 691
 692 bool
 693 MidiRegionView::key_press (GdkEventKey* ev)
 694 {
 695         /* since GTK bindings are generally activated on press, and since
 696            detectable auto-repeat is the name of the game and only sends
 697            repeated presses, carry out key actions at key press, not release.
 698         */
 699
 700         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R) {
 701                 _mouse_state = SelectTouchDragging;
 702                 return true;
 703
 704         } else if (ev->keyval == GDK_Escape) {
 705                 clear_selection();
 706                 _mouse_state = None;
 707
 708         } else if (ev->keyval == GDK_comma || ev->keyval == GDK_period) {
 709
 710                 bool start = (ev->keyval == GDK_comma);
 711                 bool end = (ev->keyval == GDK_period);
 712                 bool shorter = Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier);
 713                 bool fine = Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 714
 715                 change_note_lengths (fine, shorter, 0.0, start, end);
 716
 717                 return true;
 718
 719         } else if (ev->keyval == GDK_Delete) {
 720
 721                 delete_selection();
 722                 return true;
 723
 724         } else if (ev->keyval == GDK_Tab) {
 725
 726                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 727                         goto_previous_note ();
 728                 } else {
 729                         goto_next_note ();
 730                 }
 731                 return true;
 732
 733         } else if (ev->keyval == GDK_Up) {
 734
 735                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 736                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 737
 738                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 739                         change_velocities (true, fine, allow_smush);
 740                 } else {
 741                         transpose (true, fine, allow_smush);
 742                 }
 743                 return true;
 744
 745         } else if (ev->keyval == GDK_Down) {
 746
 747                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 748                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 749
 750                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 751                         change_velocities (false, fine, allow_smush);
 752                 } else {
 753                         transpose (false, fine, allow_smush);
 754                 }
 755                 return true;
 756
 757         } else if (ev->keyval == GDK_Left) {
 758
 759                 nudge_notes (false);
 760                 return true;
 761
 762         } else if (ev->keyval == GDK_Right) {
 763
 764                 nudge_notes (true);
 765                 return true;
 766
 767         } else if (ev->keyval == GDK_Control_L) {
 768                 return true;
 769
 770         } else if (ev->keyval == GDK_c) {
 771                 channel_edit ();
 772                 return true;
 773         }
 774
 775         return false;
 776 }
 777
 778 bool
 779 MidiRegionView::key_release (GdkEventKey* ev)
 780 {
 781         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R) {
 782                 _mouse_state = None;
 783                 return true;
 784         }
 785         return false;
 786 }
 787
 788 void
 789 MidiRegionView::channel_edit ()
 790 {
 791         bool first = true;
 792         uint8_t current_channel;
 793
 794         if (_selection.empty()) {
 795                 return;
 796         }
 797
 798         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 799                 if (first) {
 800                         current_channel = (*i)->note()->channel ();
 801                         first = false;
 802                 }
 803         }
 804
 805         MidiChannelDialog channel_dialog (current_channel);
 806         int ret = channel_dialog.run ();
 807
 808         switch (ret) {
 809         case Gtk::RESPONSE_OK:
 810                 break;
 811         default:
 812                 return;
 813         }
 814
 815         uint8_t new_channel = channel_dialog.active_channel ();
 816
 817         start_note_diff_command (_("channel edit"));
 818
 819         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
 820                 Selection::iterator next = i;
 821                 ++next;
 822                 change_note_channel (*i, new_channel);
 823                 i = next;
 824         }
 825
 826         apply_diff ();
 827 }
 828
 829 void
 830 MidiRegionView::show_list_editor ()
 831 {
 832         if (!_list_editor) {
 833                 _list_editor = new MidiListEditor (trackview.session(), midi_region());
 834         }
 835         _list_editor->present ();
 836 }
 837
 838 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 839  * \param x horizontal position in pixels
 840  * \param y vertical position in pixels
 841  * \param length duration of the note in beats, which will be snapped to the grid
 842  * \param sh true to make the note 1 frame shorter than the snapped version of \a length.
 843  */
 844 void
 845 MidiRegionView::create_note_at(double x, double y, double length, bool sh)
 846 {
 847         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 848         MidiStreamView* const view = mtv->midi_view();
 849
 850         double note = view->y_to_note(y);
 851
 852         assert(note >= 0.0);
 853         assert(note <= 127.0);
 854
 855         // Start of note in frames relative to region start
 856         framepos_t const start_frames = snap_pixel_to_frame (x);
 857         assert(start_frames >= 0);
 858
 859         // Snap length
 860         length = frames_to_beats(
 861                 snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 862
 863         assert (length != 0);
 864
 865         if (sh) {
 866                 length = frames_to_beats (beats_to_frames (length) - 1);
 867         }
 868
 869         const boost::shared_ptr<NoteType> new_note (new NoteType (mtv->get_channel_for_add (),
 870                                                                   frames_to_beats(start_frames + _region->start()), length,
 871                                                                   (uint8_t)note, 0x40));
 872
 873         if (_model->contains (new_note)) {
 874                 return;
 875         }
 876
 877         view->update_note_range(new_note->note());
 878
 879         MidiModel::NoteDiffCommand* cmd = _model->new_note_diff_command("add note");
 880         cmd->add (new_note);
 881         _model->apply_command(*trackview.session(), cmd);
 882
 883         play_midi_note (new_note);
 884 }
 885
 886 void
 887 MidiRegionView::clear_events()
 888 {
 889         clear_selection();
 890
 891         MidiGhostRegion* gr;
 892         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 893                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 894                         gr->clear_events();
 895                 }
 896         }
 897
 898         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 899                 delete *i;
 900         }
 901
 902         _events.clear();
 903         _patch_changes.clear();
 904         _sys_exes.clear();
 905         _optimization_iterator = _events.end();
 906 }
 907
 908 void
 909 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 910 {
 911         _model = model;
 912
 913         content_connection.disconnect ();
 914         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 915
 916         clear_events ();
 917
 918         if (_enable_display) {
 919                 redisplay_model();
 920         }
 921 }
 922
 923 void
 924 MidiRegionView::start_note_diff_command (string name)
 925 {
 926         if (!_note_diff_command) {
 927                 _note_diff_command = _model->new_note_diff_command (name);
 928         }
 929 }
 930
 931 void
 932 MidiRegionView::note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 933 {
 934         if (_note_diff_command) {
 935                 _note_diff_command->add (note);
 936         }
 937         if (selected) {
 938                 _marked_for_selection.insert(note);
 939         }
 940         if (show_velocity) {
 941                 _marked_for_velocity.insert(note);
 942         }
 943 }
 944
 945 void
 946 MidiRegionView::note_diff_remove_note (ArdourCanvas::CanvasNoteEvent* ev)
 947 {
 948         if (_note_diff_command && ev->note()) {
 949                 _note_diff_command->remove(ev->note());
 950         }
 951 }
 952
 953 void
 954 MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 955                                       MidiModel::NoteDiffCommand::Property property,
 956                                       uint8_t val)
 957 {
 958         if (_note_diff_command) {
 959                 _note_diff_command->change (ev->note(), property, val);
 960         }
 961 }
 962
 963 void
 964 MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 965                                       MidiModel::NoteDiffCommand::Property property,
 966                                       Evoral::MusicalTime val)
 967 {
 968         if (_note_diff_command) {
 969                 _note_diff_command->change (ev->note(), property, val);
 970         }
 971 }
 972
 973 void
 974 MidiRegionView::apply_diff (bool as_subcommand)
 975 {
 976         bool add_or_remove;
 977
 978         if (!_note_diff_command) {
 979                 return;
 980         }
 981
 982         if ((add_or_remove = _note_diff_command->adds_or_removes())) {
 983                 // Mark all selected notes for selection when model reloads
 984                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 985                         _marked_for_selection.insert((*i)->note());
 986                 }
 987         }
 988
 989         if (as_subcommand) {
 990                 _model->apply_command_as_subcommand (*trackview.session(), _note_diff_command);
 991         } else {
 992                 _model->apply_command (*trackview.session(), _note_diff_command);
 993         }
 994
 995         _note_diff_command = 0;
 996         midi_view()->midi_track()->playlist_modified();
 997
 998         if (add_or_remove) {
 999                 _marked_for_selection.clear();
1000         }
1001
1002         _marked_for_velocity.clear();
1003 }
1004
1005 void
1006 MidiRegionView::abort_command()
1007 {
1008         delete _note_diff_command;
1009         _note_diff_command = 0;
1010         clear_selection();
1011 }
1012
1013 CanvasNoteEvent*
1014 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
1015 {
1016         if (_optimization_iterator != _events.end()) {
1017                 ++_optimization_iterator;
1018         }
1019
1020         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
1021                 return *_optimization_iterator;
1022         }
1023
1024         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
1025                 if ((*_optimization_iterator)->note() == note) {
1026                         return *_optimization_iterator;
1027                 }
1028         }
1029
1030         return 0;
1031 }
1032
1033 void
1034 MidiRegionView::get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::NoteOperator op, uint8_t val, int chan_mask)
1035 {
1036         MidiModel::Notes notes;
1037         _model->get_notes (notes, op, val, chan_mask);
1038
1039         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1040                 CanvasNoteEvent* cne = find_canvas_note (*n);
1041                 if (cne) {
1042                         e.push_back (cne);
1043                 }
1044         }
1045 }
1046
1047 void
1048 MidiRegionView::redisplay_model()
1049 {
1050         // Don't redisplay the model if we're currently recording and displaying that
1051         if (_active_notes) {
1052                 return;
1053         }
1054
1055         if (!_model) {
1056                 return;
1057         }
1058
1059         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1060                 (*i)->invalidate ();
1061         }
1062
1063         MidiModel::ReadLock lock(_model->read_lock());
1064
1065         MidiModel::Notes& notes (_model->notes());
1066         _optimization_iterator = _events.begin();
1067
1068         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1069
1070                 boost::shared_ptr<NoteType> note (*n);
1071                 CanvasNoteEvent* cne;
1072                 bool visible;
1073
1074                 if (note_in_region_range (note, visible)) {
1075
1076                         if ((cne = find_canvas_note (note)) != 0) {
1077
1078                                 cne->validate ();
1079
1080                                 CanvasNote* cn;
1081                                 CanvasHit* ch;
1082
1083                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
1084                                         update_note (cn);
1085                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
1086                                         update_hit (ch);
1087                                 }
1088
1089                                 if (visible) {
1090                                         cne->show ();
1091                                 } else {
1092                                         cne->hide ();
1093                                 }
1094
1095                         } else {
1096
1097                                 add_note (note, visible);
1098                         }
1099
1100                 } else {
1101
1102                         if ((cne = find_canvas_note (note)) != 0) {
1103                                 cne->validate ();
1104                                 cne->hide ();
1105                         }
1106                 }
1107         }
1108
1109
1110         /* remove note items that are no longer valid */
1111
1112         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
1113                 if (!(*i)->valid ()) {
1114                         delete *i;
1115                         i = _events.erase (i);
1116                 } else {
1117                         ++i;
1118                 }
1119         }
1120
1121         _patch_changes.clear();
1122         _sys_exes.clear();
1123
1124         display_sysexes();
1125         display_patch_changes ();
1126
1127         _marked_for_selection.clear ();
1128         _marked_for_velocity.clear ();
1129
1130         /* we may have caused _events to contain things out of order (e.g. if a note
1131            moved earlier or later). we don't generally need them in time order, but
1132            make a note that a sort is required for those cases that require it.
1133         */
1134
1135         _sort_needed = true;
1136 }
1137
1138 void
1139 MidiRegionView::display_patch_changes ()
1140 {
1141         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1142         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
1143
1144         for (uint8_t i = 0; i < 16; ++i) {
1145                 if (chn_mask & (1<<i)) {
1146                         display_patch_changes_on_channel (i);
1147                 }
1148         }
1149 }
1150
1151 void
1152 MidiRegionView::display_patch_changes_on_channel (uint8_t channel)
1153 {
1154         for (MidiModel::PatchChanges::const_iterator i = _model->patch_changes().begin(); i != _model->patch_changes().end(); ++i) {
1155
1156                 if ((*i)->channel() != channel) {
1157                         continue;
1158                 }
1159
1160                 MIDI::Name::PatchPrimaryKey patch_key ((*i)->bank_msb (), (*i)->bank_lsb (), (*i)->program ());
1161
1162                 boost::shared_ptr<MIDI::Name::Patch> patch =
1163                         MIDI::Name::MidiPatchManager::instance().find_patch(
1164                                 _model_name, _custom_device_mode, channel, patch_key);
1165
1166                 if (patch != 0) {
1167                         add_canvas_patch_change (*i, patch->name());
1168                 } else {
1169                         char buf[16];
1170                         /* program and bank numbers are zero-based: convert to one-based */
1171                         snprintf (buf, 16, "%d\n%d", (*i)->program() + 1, (*i)->bank() + 1);
1172                         add_canvas_patch_change (*i, buf);
1173                 }
1174         }
1175 }
1176
1177 void
1178 MidiRegionView::display_sysexes()
1179 {
1180         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1181                 Evoral::MusicalTime time = (*i)->time();
1182                 assert(time >= 0);
1183
1184                 ostringstream str;
1185                 str << hex;
1186                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
1187                         str << int((*i)->buffer()[b]);
1188                         if (b != (*i)->size() -1) {
1189                                 str << " ";
1190                         }
1191                 }
1192                 string text = str.str();
1193
1194                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
1195
1196                 double height = midi_stream_view()->contents_height();
1197
1198                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
1199                         new CanvasSysEx(*this, *_note_group, text, height, x, 1.0));
1200
1201                 // Show unless patch change is beyond the region bounds
1202                 if (time - _region->start() >= _region->length() || time < _region->start()) {
1203                         sysex->hide();
1204                 } else {
1205                         sysex->show();
1206                 }
1207
1208                 _sys_exes.push_back(sysex);
1209         }
1210 }
1211
1212
1213 MidiRegionView::~MidiRegionView ()
1214 {
1215         in_destructor = true;
1216
1217         trackview.editor().verbose_cursor()->hide ();
1218
1219         note_delete_connection.disconnect ();
1220
1221         delete _list_editor;
1222
1223         RegionViewGoingAway (this); /* EMIT_SIGNAL */
1224
1225         if (_active_notes) {
1226                 end_write();
1227         }
1228
1229         _selection.clear();
1230         clear_events();
1231
1232         delete _note_group;
1233         delete _note_diff_command;
1234         delete _step_edit_cursor;
1235         delete _temporary_note_group;
1236 }
1237
1238 void
1239 MidiRegionView::region_resized (const PropertyChange& what_changed)
1240 {
1241         RegionView::region_resized(what_changed);
1242
1243         if (what_changed.contains (ARDOUR::Properties::position)) {
1244                 set_duration(_region->length(), 0);
1245                 if (_enable_display) {
1246                         redisplay_model();
1247                 }
1248         }
1249 }
1250
1251 void
1252 MidiRegionView::reset_width_dependent_items (double pixel_width)
1253 {
1254         RegionView::reset_width_dependent_items(pixel_width);
1255         assert(_pixel_width == pixel_width);
1256
1257         if (_enable_display) {
1258                 redisplay_model();
1259         }
1260
1261         move_step_edit_cursor (_step_edit_cursor_position);
1262         set_step_edit_cursor_width (_step_edit_cursor_width);
1263 }
1264
1265 void
1266 MidiRegionView::set_height (double height)
1267 {
1268         static const double FUDGE = 2.0;
1269         const double old_height = _height;
1270         RegionView::set_height(height);
1271         _height = height - FUDGE;
1272
1273         apply_note_range(midi_stream_view()->lowest_note(),
1274                          midi_stream_view()->highest_note(),
1275                          height != old_height + FUDGE);
1276
1277         if (name_pixbuf) {
1278                 name_pixbuf->raise_to_top();
1279         }
1280
1281         for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
1282                 (*x)->set_height (midi_stream_view()->contents_height());
1283         }
1284
1285         if (_step_edit_cursor) {
1286                 _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
1287         }
1288 }
1289
1290
1291 /** Apply the current note range from the stream view
1292  * by repositioning/hiding notes as necessary
1293  */
1294 void
1295 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1296 {
1297         if (!_enable_display) {
1298                 return;
1299         }
1300
1301         if (!force && _current_range_min == min && _current_range_max == max) {
1302                 return;
1303         }
1304
1305         _current_range_min = min;
1306         _current_range_max = max;
1307
1308         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1309                 CanvasNoteEvent* event = *i;
1310                 boost::shared_ptr<NoteType> note (event->note());
1311
1312                 if (note->note() < _current_range_min ||
1313                     note->note() > _current_range_max) {
1314                         event->hide();
1315                 } else {
1316                         event->show();
1317                 }
1318
1319                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1320
1321                         const double y1 = midi_stream_view()->note_to_y(note->note());
1322                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1323
1324                         cnote->property_y1() = y1;
1325                         cnote->property_y2() = y2;
1326
1327                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1328
1329                         const double diamond_size = update_hit (chit);
1330
1331                         chit->set_height (diamond_size);
1332                 }
1333         }
1334 }
1335
1336 GhostRegion*
1337 MidiRegionView::add_ghost (TimeAxisView& tv)
1338 {
1339         CanvasNote* note;
1340
1341         double unit_position = _region->position () / samples_per_unit;
1342         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1343         MidiGhostRegion* ghost;
1344
1345         if (mtv && mtv->midi_view()) {
1346                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1347                    to allow having midi notes on top of note lines and waveforms.
1348                 */
1349                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1350         } else {
1351                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1352         }
1353
1354         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1355                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1356                         ghost->add_note(note);
1357                 }
1358         }
1359
1360         ghost->set_height ();
1361         ghost->set_duration (_region->length() / samples_per_unit);
1362         ghosts.push_back (ghost);
1363
1364         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
1365
1366         return ghost;
1367 }
1368
1369
1370 /** Begin tracking note state for successive calls to add_event
1371  */
1372 void
1373 MidiRegionView::begin_write()
1374 {
1375         assert(!_active_notes);
1376         _active_notes = new CanvasNote*[128];
1377         for (unsigned i=0; i < 128; ++i) {
1378                 _active_notes[i] = 0;
1379         }
1380 }
1381
1382
1383 /** Destroy note state for add_event
1384  */
1385 void
1386 MidiRegionView::end_write()
1387 {
1388         delete[] _active_notes;
1389         _active_notes = 0;
1390         _marked_for_selection.clear();
1391         _marked_for_velocity.clear();
1392 }
1393
1394
1395 /** Resolve an active MIDI note (while recording).
1396  */
1397 void
1398 MidiRegionView::resolve_note(uint8_t note, double end_time)
1399 {
1400         if (midi_view()->note_mode() != Sustained) {
1401                 return;
1402         }
1403
1404         if (_active_notes && _active_notes[note]) {
1405
1406                 const framepos_t end_time_frames = beats_to_frames(end_time);
1407
1408                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1409                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1410                 _active_notes[note] = 0;
1411         }
1412 }
1413
1414
1415 /** Extend active notes to rightmost edge of region (if length is changed)
1416  */
1417 void
1418 MidiRegionView::extend_active_notes()
1419 {
1420         if (!_active_notes) {
1421                 return;
1422         }
1423
1424         for (unsigned i=0; i < 128; ++i) {
1425                 if (_active_notes[i]) {
1426                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1427                 }
1428         }
1429 }
1430
1431
1432 void
1433 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1434 {
1435         if (_no_sound_notes || !trackview.editor().sound_notes()) {
1436                 return;
1437         }
1438
1439         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1440
1441         if (!route_ui || !route_ui->midi_track()) {
1442                 return;
1443         }
1444
1445         NotePlayer* np = new NotePlayer (route_ui->midi_track());
1446         np->add (note);
1447         np->play ();
1448 }
1449
1450 void
1451 MidiRegionView::play_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
1452 {
1453         if (_no_sound_notes || !trackview.editor().sound_notes()) {
1454                 return;
1455         }
1456
1457         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1458
1459         if (!route_ui || !route_ui->midi_track()) {
1460                 return;
1461         }
1462
1463         NotePlayer* np = new NotePlayer (route_ui->midi_track());
1464
1465         for (vector<boost::shared_ptr<NoteType> >::iterator n = notes.begin(); n != notes.end(); ++n) {
1466                 np->add (*n);
1467         }
1468
1469         np->play ();
1470 }
1471
1472
1473 bool
1474 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1475 {
1476         const framepos_t note_start_frames = beats_to_frames(note->time());
1477
1478         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1479                 (note_start_frames < _region->start());
1480
1481         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1482                 (note->note() <= midi_stream_view()->highest_note());
1483
1484         return !outside;
1485 }
1486
1487 /** Update a canvas note's size from its model note.
1488  *  @param ev Canvas note to update.
1489  *  @param update_ghost_regions true to update the note in any ghost regions that we have, otherwise false.
1490  */
1491 void
1492 MidiRegionView::update_note (CanvasNote* ev, bool update_ghost_regions)
1493 {
1494         boost::shared_ptr<NoteType> note = ev->note();
1495
1496         const framepos_t note_start_frames = beats_to_frames(note->time());
1497
1498         /* trim note display to not overlap the end of its region */
1499         const framepos_t note_end_frames = min (beats_to_frames (note->end_time()), _region->start() + _region->length());
1500
1501         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1502         const double y1 = midi_stream_view()->note_to_y(note->note());
1503         const double note_endpixel = trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1504
1505         ev->property_x1() = x;
1506         ev->property_y1() = y1;
1507
1508         if (note->length() > 0) {
1509                 ev->property_x2() = note_endpixel;
1510         } else {
1511                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1512         }
1513
1514         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1515
1516         if (note->length() == 0) {
1517                 if (_active_notes) {
1518                         assert(note->note() < 128);
1519                         // If this note is already active there's a stuck note,
1520                         // finish the old note rectangle
1521                         if (_active_notes[note->note()]) {
1522                                 CanvasNote* const old_rect = _active_notes[note->note()];
1523                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1524                                 old_rect->property_x2() = x;
1525                                 old_rect->property_outline_what() = (guint32) 0xF;
1526                         }
1527                         _active_notes[note->note()] = ev;
1528                 }
1529                 /* outline all but right edge */
1530                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1531         } else {
1532                 /* outline all edges */
1533                 ev->property_outline_what() = (guint32) 0xF;
1534         }
1535
1536         if (update_ghost_regions) {
1537                 for (std::vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1538                         MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*i);
1539                         if (gr) {
1540                                 gr->update_note (ev);
1541                         }
1542                 }
1543         }
1544 }
1545
1546 double
1547 MidiRegionView::update_hit (CanvasHit* ev)
1548 {
1549         boost::shared_ptr<NoteType> note = ev->note();
1550
1551         const framepos_t note_start_frames = beats_to_frames(note->time());
1552         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1553         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1554         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1555
1556         ev->move_to (x, y);
1557
1558         return diamond_size;
1559 }
1560
1561 /** Add a MIDI note to the view (with length).
1562  *
1563  * If in sustained mode, notes with length 0 will be considered active
1564  * notes, and resolve_note should be called when the corresponding note off
1565  * event arrives, to properly display the note.
1566  */
1567 void
1568 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1569 {
1570         CanvasNoteEvent* event = 0;
1571
1572         assert(note->time() >= 0);
1573         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1574
1575         //ArdourCanvas::Group* const group = (ArdourCanvas::Group*) get_canvas_group();
1576
1577         if (midi_view()->note_mode() == Sustained) {
1578
1579                 CanvasNote* ev_rect = new CanvasNote(*this, *_note_group, note);
1580
1581                 update_note (ev_rect);
1582
1583                 event = ev_rect;
1584
1585                 MidiGhostRegion* gr;
1586
1587                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1588                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1589                                 gr->add_note(ev_rect);
1590                         }
1591                 }
1592
1593         } else if (midi_view()->note_mode() == Percussive) {
1594
1595                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1596
1597                 CanvasHit* ev_diamond = new CanvasHit(*this, *_note_group, diamond_size, note);
1598
1599                 update_hit (ev_diamond);
1600
1601                 event = ev_diamond;
1602
1603         } else {
1604                 event = 0;
1605         }
1606
1607         if (event) {
1608                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1609                         note_selected(event, true);
1610                 }
1611
1612                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1613                         event->show_velocity();
1614                 }
1615
1616                 event->on_channel_selection_change(_last_channel_selection);
1617                 _events.push_back(event);
1618
1619                 if (visible) {
1620                         event->show();
1621                 } else {
1622                         event->hide ();
1623                 }
1624         }
1625
1626         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1627         MidiStreamView* const view = mtv->midi_view();
1628
1629         view->update_note_range(note->note());
1630 }
1631
1632 void
1633 MidiRegionView::step_add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1634                                Evoral::MusicalTime pos, Evoral::MusicalTime len)
1635 {
1636         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1637
1638         /* potentially extend region to hold new note */
1639
1640         framepos_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1641         framepos_t region_end = _region->position() + _region->length() - 1;
1642
1643         if (end_frame > region_end) {
1644                 _region->set_length (end_frame - _region->position());
1645         }
1646
1647         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1648         MidiStreamView* const view = mtv->midi_view();
1649
1650         view->update_note_range(new_note->note());
1651
1652         _marked_for_selection.clear ();
1653         clear_selection ();
1654
1655         start_note_diff_command (_("step add"));
1656         note_diff_add_note (new_note, true, false);
1657         apply_diff();
1658
1659         // last_step_edit_note = new_note;
1660 }
1661
1662 void
1663 MidiRegionView::step_sustain (Evoral::MusicalTime beats)
1664 {
1665         change_note_lengths (false, false, beats, false, true);
1666 }
1667
1668 void
1669 MidiRegionView::add_canvas_patch_change (MidiModel::PatchChangePtr patch, const string& displaytext)
1670 {
1671         assert (patch->time() >= 0);
1672
1673         const double x = trackview.editor().frame_to_pixel (beats_to_frames (patch->time()));
1674
1675         double const height = midi_stream_view()->contents_height();
1676
1677         boost::shared_ptr<CanvasPatchChange> patch_change = boost::shared_ptr<CanvasPatchChange>(
1678                 new CanvasPatchChange(*this, *_note_group,
1679                                       displaytext,
1680                                       height,
1681                                       x, 1.0,
1682                                       _model_name,
1683                                       _custom_device_mode,
1684                                       patch)
1685                           );
1686
1687         // Show unless patch change is beyond the region bounds
1688         if (patch->time() - _region->start() >= _region->length() || patch->time() < _region->start()) {
1689                 patch_change->hide();
1690         } else {
1691                 patch_change->show();
1692         }
1693
1694         _patch_changes.push_back (patch_change);
1695 }
1696
1697 void
1698 MidiRegionView::get_patch_key_at (Evoral::MusicalTime time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1699 {
1700         MidiModel::PatchChanges::iterator i = _model->patch_change_lower_bound (time);
1701         while (i != _model->patch_changes().end() && (*i)->channel() != channel) {
1702                 ++i;
1703         }
1704
1705         if (i != _model->patch_changes().end()) {
1706                 key.msb = (*i)->bank_msb ();
1707                 key.lsb = (*i)->bank_lsb ();
1708                 key.program_number = (*i)->program ();
1709         } else {
1710                 key.msb = key.lsb = key.program_number = 0;
1711         }
1712
1713         assert (key.is_sane());
1714 }
1715
1716
1717 void
1718 MidiRegionView::change_patch_change (CanvasPatchChange& pc, const MIDI::Name::PatchPrimaryKey& new_patch)
1719 {
1720         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("alter patch change"));
1721
1722         if (pc.patch()->program() != new_patch.program_number) {
1723                 c->change_program (pc.patch (), new_patch.program_number);
1724         }
1725
1726         int const new_bank = (new_patch.msb << 7) | new_patch.lsb;
1727         if (pc.patch()->bank() != new_bank) {
1728                 c->change_bank (pc.patch (), new_bank);
1729         }
1730
1731         _model->apply_command (*trackview.session(), c);
1732
1733         _patch_changes.clear ();
1734         display_patch_changes ();
1735 }
1736
1737 void
1738 MidiRegionView::change_patch_change (MidiModel::PatchChangePtr old_change, const Evoral::PatchChange<Evoral::MusicalTime> & new_change)
1739 {
1740         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("alter patch change"));
1741
1742         if (old_change->time() != new_change.time()) {
1743                 c->change_time (old_change, new_change.time());
1744         }
1745
1746         if (old_change->channel() != new_change.channel()) {
1747                 c->change_channel (old_change, new_change.channel());
1748         }
1749
1750         if (old_change->program() != new_change.program()) {
1751                 c->change_program (old_change, new_change.program());
1752         }
1753
1754         if (old_change->bank() != new_change.bank()) {
1755                 c->change_bank (old_change, new_change.bank());
1756         }
1757
1758         _model->apply_command (*trackview.session(), c);
1759
1760         _patch_changes.clear ();
1761         display_patch_changes ();
1762 }
1763
1764 /** Add a patch change to the region.
1765  *  @param t Time in frames relative to region position
1766  *  @param patch Patch to add; time and channel are ignored (time is converted from t, and channel comes from
1767  *  MidiTimeAxisView::get_channel_for_add())
1768  */
1769 void
1770 MidiRegionView::add_patch_change (framecnt_t t, Evoral::PatchChange<Evoral::MusicalTime> const & patch)
1771 {
1772         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1773
1774         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("add patch change"));
1775         c->add (MidiModel::PatchChangePtr (
1776                         new Evoral::PatchChange<Evoral::MusicalTime> (
1777                                 frames_to_beats (t + midi_region()->start()), mtv->get_channel_for_add(), patch.program(), patch.bank()
1778                                                                       )
1779                                            ));
1780
1781         _model->apply_command (*trackview.session(), c);
1782
1783         _patch_changes.clear ();
1784         display_patch_changes ();
1785 }
1786
1787 void
1788 MidiRegionView::move_patch_change (CanvasPatchChange& pc, Evoral::MusicalTime t)
1789 {
1790         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("move patch change"));
1791         c->change_time (pc.patch (), t);
1792         _model->apply_command (*trackview.session(), c);
1793
1794         _patch_changes.clear ();
1795         display_patch_changes ();
1796 }
1797
1798 void
1799 MidiRegionView::delete_patch_change (CanvasPatchChange* pc)
1800 {
1801         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("delete patch change"));
1802         c->remove (pc->patch ());
1803         _model->apply_command (*trackview.session(), c);
1804
1805         _patch_changes.clear ();
1806         display_patch_changes ();
1807 }
1808
1809 void
1810 MidiRegionView::previous_patch (CanvasPatchChange& patch)
1811 {
1812         if (patch.patch()->program() < 127) {
1813                 MIDI::Name::PatchPrimaryKey key;
1814                 get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
1815                 key.program_number++;
1816                 change_patch_change (patch, key);
1817         }
1818 }
1819
1820 void
1821 MidiRegionView::next_patch (CanvasPatchChange& patch)
1822 {
1823         if (patch.patch()->program() > 0) {
1824                 MIDI::Name::PatchPrimaryKey key;
1825                 get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
1826                 key.program_number--;
1827                 change_patch_change (patch, key);
1828         }
1829 }
1830
1831 void
1832 MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
1833 {
1834         if (_selection.empty()) {
1835                 return;
1836         }
1837
1838         _selection.erase (cne);
1839 }
1840
1841 void
1842 MidiRegionView::delete_selection()
1843 {
1844         if (_selection.empty()) {
1845                 return;
1846         }
1847
1848         start_note_diff_command (_("delete selection"));
1849
1850         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1851                 if ((*i)->selected()) {
1852                         _note_diff_command->remove((*i)->note());
1853                 }
1854         }
1855
1856         _selection.clear();
1857
1858         apply_diff ();
1859 }
1860
1861 void
1862 MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
1863 {
1864         start_note_diff_command (_("delete note"));
1865         _note_diff_command->remove (n);
1866         apply_diff ();
1867
1868         trackview.editor().verbose_cursor()->hide ();
1869 }
1870
1871 void
1872 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1873 {
1874         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1875                 if ((*i)->selected() && (*i) != ev) {
1876                         (*i)->set_selected(false);
1877                         (*i)->hide_velocity();
1878                 }
1879         }
1880
1881         _selection.clear();
1882 }
1883
1884 void
1885 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1886 {
1887         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1888                 if ((*i) != ev) {
1889
1890                         Selection::iterator tmp = i;
1891                         ++tmp;
1892
1893                         (*i)->set_selected (false);
1894                         _selection.erase (i);
1895
1896                         i = tmp;
1897
1898                 } else {
1899                         ++i;
1900                 }
1901         }
1902
1903         /* don't bother with removing this regionview from the editor selection,
1904            since we're about to add another note, and thus put/keep this
1905            regionview in the editor selection.
1906         */
1907
1908         if (!ev->selected()) {
1909                 add_to_selection (ev);
1910         }
1911 }
1912
1913 void
1914 MidiRegionView::select_all_notes ()
1915 {
1916         clear_selection ();
1917
1918         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1919                 add_to_selection (*i);
1920         }
1921 }
1922
1923 void
1924 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
1925 {
1926         uint8_t low_note = 127;
1927         uint8_t high_note = 0;
1928         MidiModel::Notes& notes (_model->notes());
1929         _optimization_iterator = _events.begin();
1930
1931         if (!add) {
1932                 clear_selection ();
1933         }
1934
1935         if (extend && _selection.empty()) {
1936                 extend = false;
1937         }
1938
1939         if (extend) {
1940
1941                 /* scan existing selection to get note range */
1942
1943                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1944                         if ((*i)->note()->note() < low_note) {
1945                                 low_note = (*i)->note()->note();
1946                         }
1947                         if ((*i)->note()->note() > high_note) {
1948                                 high_note = (*i)->note()->note();
1949                         }
1950                 }
1951
1952                 low_note = min (low_note, notenum);
1953                 high_note = max (high_note, notenum);
1954         }
1955
1956         _no_sound_notes = true;
1957
1958         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1959
1960                 boost::shared_ptr<NoteType> note (*n);
1961                 CanvasNoteEvent* cne;
1962                 bool select = false;
1963
1964                 if (((1 << note->channel()) & channel_mask) != 0) {
1965                         if (extend) {
1966                                 if ((note->note() >= low_note && note->note() <= high_note)) {
1967                                         select = true;
1968                                 }
1969                         } else if (note->note() == notenum) {
1970                                 select = true;
1971                         }
1972                 }
1973
1974                 if (select) {
1975                         if ((cne = find_canvas_note (note)) != 0) {
1976                                 // extend is false because we've taken care of it,
1977                                 // since it extends by time range, not pitch.
1978                                 note_selected (cne, add, false);
1979                         }
1980                 }
1981
1982                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
1983
1984         }
1985
1986         _no_sound_notes = false;
1987 }
1988
1989 void
1990 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
1991 {
1992         MidiModel::Notes& notes (_model->notes());
1993         _optimization_iterator = _events.begin();
1994
1995         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1996
1997                 boost::shared_ptr<NoteType> note (*n);
1998                 CanvasNoteEvent* cne;
1999
2000                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
2001                         if ((cne = find_canvas_note (note)) != 0) {
2002                                 if (cne->selected()) {
2003                                         note_deselected (cne);
2004                                 } else {
2005                                         note_selected (cne, true, false);
2006                                 }
2007                         }
2008                 }
2009         }
2010 }
2011
2012 void
2013 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
2014 {
2015         if (!add) {
2016                 clear_selection_except(ev);
2017         }
2018
2019         if (!extend) {
2020
2021                 if (!ev->selected()) {
2022                         add_to_selection (ev);
2023                 }
2024
2025         } else {
2026                 /* find end of latest note selected, select all between that and the start of "ev" */
2027
2028                 Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
2029                 Evoral::MusicalTime latest = 0;
2030
2031                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2032                         if ((*i)->note()->end_time() > latest) {
2033                                 latest = (*i)->note()->end_time();
2034                         }
2035                         if ((*i)->note()->time() < earliest) {
2036                                 earliest = (*i)->note()->time();
2037                         }
2038                 }
2039
2040                 if (ev->note()->end_time() > latest) {
2041                         latest = ev->note()->end_time();
2042                 }
2043
2044                 if (ev->note()->time() < earliest) {
2045                         earliest = ev->note()->time();
2046                 }
2047
2048                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2049
2050                         /* find notes entirely within OR spanning the earliest..latest range */
2051
2052                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
2053                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
2054                                 add_to_selection (*i);
2055                         }
2056
2057 #if 0
2058                         /* if events were guaranteed to be time sorted, we could do this.
2059                            but as of sept 10th 2009, they no longer are.
2060                         */
2061
2062                         if ((*i)->note()->time() > latest) {
2063                                 break;
2064                         }
2065 #endif
2066                 }
2067         }
2068 }
2069
2070 void
2071 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
2072 {
2073         remove_from_selection (ev);
2074 }
2075
2076 void
2077 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
2078 {
2079         if (x1 > x2) {
2080                 swap (x1, x2);
2081         }
2082
2083         if (y1 > y2) {
2084                 swap (y1, y2);
2085         }
2086
2087         // TODO: Make this faster by storing the last updated selection rect, and only
2088         // adjusting things that are in the area that appears/disappeared.
2089         // We probably need a tree to be able to find events in O(log(n)) time.
2090
2091         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2092
2093                 /* check if any corner of the note is inside the rect
2094
2095                    Notes:
2096                    1) this is computing "touched by", not "contained by" the rect.
2097                    2) this does not require that events be sorted in time.
2098                 */
2099
2100                 const double ix1 = (*i)->x1();
2101                 const double ix2 = (*i)->x2();
2102                 const double iy1 = (*i)->y1();
2103                 const double iy2 = (*i)->y2();
2104
2105                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
2106                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
2107                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
2108                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
2109
2110                         // Inside rectangle
2111                         if (!(*i)->selected()) {
2112                                 add_to_selection (*i);
2113                         }
2114                 } else if ((*i)->selected()) {
2115                         // Not inside rectangle
2116                         remove_from_selection (*i);
2117                 }
2118         }
2119 }
2120
2121 void
2122 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
2123 {
2124         Selection::iterator i = _selection.find (ev);
2125
2126         if (i != _selection.end()) {
2127                 _selection.erase (i);
2128         }
2129
2130         ev->set_selected (false);
2131         ev->hide_velocity ();
2132
2133         if (_selection.empty()) {
2134                 PublicEditor& editor (trackview.editor());
2135                 editor.get_selection().remove (this);
2136         }
2137 }
2138
2139 void
2140 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
2141 {
2142         bool add_mrv_selection = false;
2143
2144         if (_selection.empty()) {
2145                 add_mrv_selection = true;
2146         }
2147
2148         if (_selection.insert (ev).second) {
2149                 ev->set_selected (true);
2150                 play_midi_note ((ev)->note());
2151         }
2152
2153         if (add_mrv_selection) {
2154                 PublicEditor& editor (trackview.editor());
2155                 editor.get_selection().add (this);
2156         }
2157 }
2158
2159 void
2160 MidiRegionView::move_selection(double dx, double dy, double cumulative_dy)
2161 {
2162         typedef vector<boost::shared_ptr<NoteType> > PossibleChord;
2163         PossibleChord to_play;
2164         Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
2165
2166         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2167                 if ((*i)->note()->time() < earliest) {
2168                         earliest = (*i)->note()->time();
2169                 }
2170         }
2171
2172         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2173                 if (Evoral::musical_time_equal ((*i)->note()->time(), earliest)) {
2174                         to_play.push_back ((*i)->note());
2175                 }
2176                 (*i)->move_event(dx, dy);
2177         }
2178
2179         if (dy && !_selection.empty() && !_no_sound_notes && trackview.editor().sound_notes()) {
2180
2181                 if (to_play.size() > 1) {
2182
2183                         PossibleChord shifted;
2184
2185                         for (PossibleChord::iterator n = to_play.begin(); n != to_play.end(); ++n) {
2186                                 boost::shared_ptr<NoteType> moved_note (new NoteType (**n));
2187                                 moved_note->set_note (moved_note->note() + cumulative_dy);
2188                                 shifted.push_back (moved_note);
2189                         }
2190
2191                         play_midi_chord (shifted);
2192
2193                 } else if (!to_play.empty()) {
2194
2195                         boost::shared_ptr<NoteType> moved_note (new NoteType (*to_play.front()));
2196                         moved_note->set_note (moved_note->note() + cumulative_dy);
2197                         play_midi_note (moved_note);
2198                 }
2199         }
2200 }
2201
2202 void
2203 MidiRegionView::note_dropped(CanvasNoteEvent *, frameoffset_t dt, int8_t dnote)
2204 {
2205         assert (!_selection.empty());
2206
2207         uint8_t lowest_note_in_selection  = 127;
2208         uint8_t highest_note_in_selection = 0;
2209         uint8_t highest_note_difference = 0;
2210
2211         // find highest and lowest notes first
2212
2213         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2214                 uint8_t pitch = (*i)->note()->note();
2215                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
2216                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
2217         }
2218
2219         /*
2220           cerr << "dnote: " << (int) dnote << endl;
2221           cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
2222           << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
2223           cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
2224           << int(highest_note_in_selection) << endl;
2225           cerr << "selection size: " << _selection.size() << endl;
2226           cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
2227         */
2228
2229         // Make sure the note pitch does not exceed the MIDI standard range
2230         if (highest_note_in_selection + dnote > 127) {
2231                 highest_note_difference = highest_note_in_selection - 127;
2232         }
2233
2234         start_note_diff_command (_("move notes"));
2235
2236         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
2237
2238                 Evoral::MusicalTime new_time = frames_to_beats (beats_to_frames ((*i)->note()->time()) + dt);
2239
2240                 if (new_time < 0) {
2241                         continue;
2242                 }
2243
2244                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::StartTime, new_time);
2245
2246                 uint8_t original_pitch = (*i)->note()->note();
2247                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
2248
2249                 // keep notes in standard midi range
2250                 clamp_to_0_127(new_pitch);
2251
2252                 // keep original pitch if note is dragged outside valid midi range
2253                 if ((original_pitch != 0 && new_pitch == 0)
2254                     || (original_pitch != 127 && new_pitch == 127)) {
2255                         new_pitch = original_pitch;
2256                 }
2257
2258                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
2259                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
2260
2261                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::NoteNumber, new_pitch);
2262         }
2263
2264         apply_diff();
2265
2266         // care about notes being moved beyond the upper/lower bounds on the canvas
2267         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
2268             highest_note_in_selection > midi_stream_view()->highest_note()) {
2269                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
2270         }
2271 }
2272
2273 framepos_t
2274 MidiRegionView::snap_pixel_to_frame(double x)
2275 {
2276         PublicEditor& editor (trackview.editor());
2277         return snap_frame_to_frame (editor.pixel_to_frame (x));
2278 }
2279
2280 /** Snap a frame offset within our region using the current snap settings.
2281  *  @param x Frame offset from this region's position.
2282  *  @return Snapped frame offset from this region's position.
2283  */
2284 frameoffset_t
2285 MidiRegionView::snap_frame_to_frame (frameoffset_t x)
2286 {
2287         PublicEditor& editor = trackview.editor();
2288
2289         /* x is region relative, convert it to global absolute frames */
2290         framepos_t const session_frame = x + _region->position();
2291
2292         /* try a snap in either direction */
2293         framepos_t frame = session_frame;
2294         editor.snap_to (frame, 0);
2295
2296         /* if we went off the beginning of the region, snap forwards */
2297         if (frame < _region->position ()) {
2298                 frame = session_frame;
2299                 editor.snap_to (frame, 1);
2300         }
2301
2302         /* back to region relative */
2303         return frame - _region->position();
2304 }
2305
2306 double
2307 MidiRegionView::snap_to_pixel(double x)
2308 {
2309         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
2310 }
2311
2312 double
2313 MidiRegionView::get_position_pixels()
2314 {
2315         framepos_t region_frame = get_position();
2316         return trackview.editor().frame_to_pixel(region_frame);
2317 }
2318
2319 double
2320 MidiRegionView::get_end_position_pixels()
2321 {
2322         framepos_t frame = get_position() + get_duration ();
2323         return trackview.editor().frame_to_pixel(frame);
2324 }
2325
2326 framepos_t
2327 MidiRegionView::beats_to_frames(double beats) const
2328 {
2329         return _time_converter.to(beats);
2330 }
2331
2332 double
2333 MidiRegionView::frames_to_beats(framepos_t frames) const
2334 {
2335         return _time_converter.from(frames);
2336 }
2337
2338 void
2339 MidiRegionView::begin_resizing (bool /*at_front*/)
2340 {
2341         _resize_data.clear();
2342
2343         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2344                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
2345
2346                 // only insert CanvasNotes into the map
2347                 if (note) {
2348                         NoteResizeData *resize_data = new NoteResizeData();
2349                         resize_data->canvas_note = note;
2350
2351                         // create a new SimpleRect from the note which will be the resize preview
2352                         SimpleRect *resize_rect = new SimpleRect(
2353                                 *_note_group, note->x1(), note->y1(), note->x2(), note->y2());
2354
2355                         // calculate the colors: get the color settings
2356                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
2357                                 ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
2358                                 128);
2359
2360                         // make the resize preview notes more transparent and bright
2361                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
2362
2363                         // calculate color based on note velocity
2364                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
2365                                 CanvasNoteEvent::meter_style_fill_color(note->note()->velocity(), note->selected()),
2366                                 fill_color,
2367                                 0.85);
2368
2369                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
2370                                 ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
2371
2372                         resize_data->resize_rect = resize_rect;
2373                         _resize_data.push_back(resize_data);
2374                 }
2375         }
2376 }
2377
2378 /** Update resizing notes while user drags.
2379  * @param primary `primary' note for the drag; ie the one that is used as the reference in non-relative mode.
2380  * @param at_front which end of the note (true == note on, false == note off)
2381  * @param delta_x change in mouse position since the start of the drag
2382  * @param relative true if relative resizing is taking place, false if absolute resizing.  This only makes
2383  * a difference when multiple notes are being resized; in relative mode, each note's length is changed by the
2384  * amount of the drag.  In non-relative mode, all selected notes are set to have the same start or end point
2385  * as the \a primary note.
2386  */
2387 void
2388 MidiRegionView::update_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at_front, double delta_x, bool relative)
2389 {
2390         bool cursor_set = false;
2391
2392         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2393                 SimpleRect* resize_rect = (*i)->resize_rect;
2394                 CanvasNote* canvas_note = (*i)->canvas_note;
2395                 double current_x;
2396
2397                 if (at_front) {
2398                         if (relative) {
2399                                 current_x = canvas_note->x1() + delta_x;
2400                         } else {
2401                                 current_x = primary->x1() + delta_x;
2402                         }
2403                 } else {
2404                         if (relative) {
2405                                 current_x = canvas_note->x2() + delta_x;
2406                         } else {
2407                                 current_x = primary->x2() + delta_x;
2408                         }
2409                 }
2410
2411                 if (at_front) {
2412                         resize_rect->property_x1() = snap_to_pixel(current_x);
2413                         resize_rect->property_x2() = canvas_note->x2();
2414                 } else {
2415                         resize_rect->property_x2() = snap_to_pixel(current_x);
2416                         resize_rect->property_x1() = canvas_note->x1();
2417                 }
2418
2419                 if (!cursor_set) {
2420                         double beats;
2421
2422                         beats = snap_pixel_to_frame (current_x);
2423                         beats = frames_to_beats (beats);
2424
2425                         double len;
2426
2427                         if (at_front) {
2428                                 if (beats < canvas_note->note()->end_time()) {
2429                                         len = canvas_note->note()->time() - beats;
2430                                         len += canvas_note->note()->length();
2431                                 } else {
2432                                         len = 0;
2433                                 }
2434                         } else {
2435                                 if (beats >= canvas_note->note()->time()) {
2436                                         len = beats - canvas_note->note()->time();
2437                                 } else {
2438                                         len = 0;
2439                                 }
2440                         }
2441
2442                         char buf[16];
2443                         snprintf (buf, sizeof (buf), "%.3g beats", len);
2444                         show_verbose_cursor (buf, 0, 0);
2445
2446                         cursor_set = true;
2447                 }
2448
2449         }
2450 }
2451
2452
2453 /** Finish resizing notes when the user releases the mouse button.
2454  *  Parameters the same as for \a update_resizing().
2455  */
2456 void
2457 MidiRegionView::commit_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at_front, double delta_x, bool relative)
2458 {
2459         start_note_diff_command (_("resize notes"));
2460
2461         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2462                 CanvasNote*  canvas_note = (*i)->canvas_note;
2463                 SimpleRect*  resize_rect = (*i)->resize_rect;
2464                 double current_x;
2465
2466                 if (at_front) {
2467                         if (relative) {
2468                                 current_x = canvas_note->x1() + delta_x;
2469                         } else {
2470                                 current_x = primary->x1() + delta_x;
2471                         }
2472                 } else {
2473                         if (relative) {
2474                                 current_x = canvas_note->x2() + delta_x;
2475                         } else {
2476                                 current_x = primary->x2() + delta_x;
2477                         }
2478                 }
2479
2480                 current_x = snap_pixel_to_frame (current_x);
2481                 current_x = frames_to_beats (current_x);
2482
2483                 if (at_front && current_x < canvas_note->note()->end_time()) {
2484                         note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::StartTime, current_x);
2485
2486                         double len = canvas_note->note()->time() - current_x;
2487                         len += canvas_note->note()->length();
2488
2489                         if (len > 0) {
2490                                 /* XXX convert to beats */
2491                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2492                         }
2493                 }
2494
2495                 if (!at_front) {
2496                         double len = current_x - canvas_note->note()->time();
2497
2498                         if (len > 0) {
2499                                 /* XXX convert to beats */
2500                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2501                         }
2502                 }
2503
2504                 delete resize_rect;
2505                 delete (*i);
2506         }
2507
2508         _resize_data.clear();
2509         apply_diff();
2510 }
2511
2512 void
2513 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
2514 {
2515         uint8_t new_velocity;
2516
2517         if (relative) {
2518                 new_velocity = event->note()->velocity() + velocity;
2519                 clamp_to_0_127(new_velocity);
2520         } else {
2521                 new_velocity = velocity;
2522         }
2523
2524         event->set_selected (event->selected()); // change color
2525
2526         note_diff_add_change (event, MidiModel::NoteDiffCommand::Velocity, new_velocity);
2527 }
2528
2529 void
2530 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
2531 {
2532         uint8_t new_note;
2533
2534         if (relative) {
2535                 new_note = event->note()->note() + note;
2536         } else {
2537                 new_note = note;
2538         }
2539
2540         clamp_to_0_127 (new_note);
2541         note_diff_add_change (event, MidiModel::NoteDiffCommand::NoteNumber, new_note);
2542 }
2543
2544 void
2545 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
2546 {
2547         bool change_start = false;
2548         bool change_length = false;
2549         Evoral::MusicalTime new_start = 0;
2550         Evoral::MusicalTime new_length = 0;
2551
2552         /* NOTE: the semantics of the two delta arguments are slightly subtle:
2553
2554            front_delta: if positive - move the start of the note later in time (shortening it)
2555            if negative - move the start of the note earlier in time (lengthening it)
2556
2557            end_delta:   if positive - move the end of the note later in time (lengthening it)
2558            if negative - move the end of the note earlier in time (shortening it)
2559         */
2560
2561         if (front_delta) {
2562                 if (front_delta < 0) {
2563
2564                         if (event->note()->time() < -front_delta) {
2565                                 new_start = 0;
2566                         } else {
2567                                 new_start = event->note()->time() + front_delta; // moves earlier
2568                         }
2569
2570                         /* start moved toward zero, so move the end point out to where it used to be.
2571                            Note that front_delta is negative, so this increases the length.
2572                         */
2573
2574                         new_length = event->note()->length() - front_delta;
2575                         change_start = true;
2576                         change_length = true;
2577
2578                 } else {
2579
2580                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2581
2582                         if (new_pos < event->note()->end_time()) {
2583                                 new_start = event->note()->time() + front_delta;
2584                                 /* start moved toward the end, so move the end point back to where it used to be */
2585                                 new_length = event->note()->length() - front_delta;
2586                                 change_start = true;
2587                                 change_length = true;
2588                         }
2589                 }
2590
2591         }
2592
2593         if (end_delta) {
2594                 bool can_change = true;
2595                 if (end_delta < 0) {
2596                         if (event->note()->length() < -end_delta) {
2597                                 can_change = false;
2598                         }
2599                 }
2600
2601                 if (can_change) {
2602                         new_length = event->note()->length() + end_delta;
2603                         change_length = true;
2604                 }
2605         }
2606
2607         if (change_start) {
2608                 note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_start);
2609         }
2610
2611         if (change_length) {
2612                 note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, new_length);
2613         }
2614 }
2615
2616 void
2617 MidiRegionView::change_note_channel (CanvasNoteEvent* event, int8_t chn, bool relative)
2618 {
2619         uint8_t new_channel;
2620
2621         if (relative) {
2622                 if (chn < 0.0) {
2623                         if (event->note()->channel() < -chn) {
2624                                 new_channel = 0;
2625                         } else {
2626                                 new_channel = event->note()->channel() + chn;
2627                         }
2628                 } else {
2629                         new_channel = event->note()->channel() + chn;
2630                 }
2631         } else {
2632                 new_channel = (uint8_t) chn;
2633         }
2634
2635         note_diff_add_change (event, MidiModel::NoteDiffCommand::Channel, new_channel);
2636 }
2637
2638 void
2639 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2640 {
2641         Evoral::MusicalTime new_time;
2642
2643         if (relative) {
2644                 if (delta < 0.0) {
2645                         if (event->note()->time() < -delta) {
2646                                 new_time = 0;
2647                         } else {
2648                                 new_time = event->note()->time() + delta;
2649                         }
2650                 } else {
2651                         new_time = event->note()->time() + delta;
2652                 }
2653         } else {
2654                 new_time = delta;
2655         }
2656
2657         note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_time);
2658 }
2659
2660 void
2661 MidiRegionView::change_note_length (CanvasNoteEvent* event, Evoral::MusicalTime t)
2662 {
2663         note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, t);
2664 }
2665
2666 void
2667 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2668 {
2669         int8_t delta;
2670
2671         if (_selection.empty()) {
2672                 return;
2673         }
2674
2675         if (fine) {
2676                 delta = 1;
2677         } else {
2678                 delta = 10;
2679         }
2680
2681         if (!up) {
2682                 delta = -delta;
2683         }
2684
2685         if (!allow_smush) {
2686                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2687                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2688                                 return;
2689                         }
2690                 }
2691         }
2692
2693         start_note_diff_command (_("change velocities"));
2694
2695         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2696                 Selection::iterator next = i;
2697                 ++next;
2698                 change_note_velocity (*i, delta, true);
2699                 i = next;
2700         }
2701
2702         apply_diff();
2703
2704         if (!_selection.empty()) {
2705                 char buf[24];
2706                 snprintf (buf, sizeof (buf), "Vel %d",
2707                           (int) (*_selection.begin())->note()->velocity());
2708                 show_verbose_cursor (buf, 10, 10);
2709         }
2710 }
2711
2712
2713 void
2714 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2715 {
2716         if (_selection.empty()) {
2717                 return;
2718         }
2719
2720         int8_t delta;
2721
2722         if (fine) {
2723                 delta = 1;
2724         } else {
2725                 delta = 12;
2726         }
2727
2728         if (!up) {
2729                 delta = -delta;
2730         }
2731
2732         if (!allow_smush) {
2733                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2734                         if (!up) {
2735                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2736                                         return;
2737                                 }
2738                         } else {
2739                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2740                                         return;
2741                                 }
2742                         }
2743                 }
2744         }
2745
2746         start_note_diff_command (_("transpose"));
2747
2748         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2749                 Selection::iterator next = i;
2750                 ++next;
2751                 change_note_note (*i, delta, true);
2752                 i = next;
2753         }
2754
2755         apply_diff ();
2756 }
2757
2758 void
2759 MidiRegionView::change_note_lengths (bool fine, bool shorter, Evoral::MusicalTime delta, bool start, bool end)
2760 {
2761         if (delta == 0.0) {
2762                 if (fine) {
2763                         delta = 1.0/128.0;
2764                 } else {
2765                         /* grab the current grid distance */
2766                         bool success;
2767                         delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2768                         if (!success) {
2769                                 /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2770                                 cerr << "Grid type not available as beats - TO BE FIXED\n";
2771                                 return;
2772                         }
2773                 }
2774         }
2775
2776         if (shorter) {
2777                 delta = -delta;
2778         }
2779
2780         start_note_diff_command (_("change note lengths"));
2781
2782         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2783                 Selection::iterator next = i;
2784                 ++next;
2785
2786                 /* note the negation of the delta for start */
2787
2788                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2789                 i = next;
2790         }
2791
2792         apply_diff ();
2793
2794 }
2795
2796 void
2797 MidiRegionView::nudge_notes (bool forward)
2798 {
2799         if (_selection.empty()) {
2800                 return;
2801         }
2802
2803         /* pick a note as the point along the timeline to get the nudge distance.
2804            its not necessarily the earliest note, so we may want to pull the notes out
2805            into a vector and sort before using the first one.
2806         */
2807
2808         framepos_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2809         framepos_t unused;
2810         framepos_t distance;
2811
2812         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2813
2814                 /* grid is off - use nudge distance */
2815
2816                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2817
2818         } else {
2819
2820                 /* use grid */
2821
2822                 framepos_t next_pos = ref_point;
2823
2824                 if (forward) {
2825                         if (max_framepos - 1 < next_pos) {
2826                                 next_pos += 1;
2827                         }
2828                 } else {
2829                         if (next_pos == 0) {
2830                                 return;
2831                         }
2832                         next_pos -= 1;
2833                 }
2834
2835                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2836                 distance = ref_point - next_pos;
2837         }
2838
2839         if (distance == 0) {
2840                 return;
2841         }
2842
2843         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2844
2845         if (!forward) {
2846                 delta = -delta;
2847         }
2848
2849         start_note_diff_command (_("nudge"));
2850
2851         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2852                 Selection::iterator next = i;
2853                 ++next;
2854                 change_note_time (*i, delta, true);
2855                 i = next;
2856         }
2857
2858         apply_diff ();
2859 }
2860
2861 void
2862 MidiRegionView::change_channel(uint8_t channel)
2863 {
2864         start_note_diff_command(_("change channel"));
2865         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2866                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::Channel, channel);
2867         }
2868
2869         apply_diff();
2870 }
2871
2872
2873 void
2874 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2875 {
2876         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2877
2878         _pre_enter_cursor = editor->get_canvas_cursor ();
2879
2880         if (_mouse_state == SelectTouchDragging) {
2881                 note_selected (ev, true);
2882         }
2883
2884         show_verbose_cursor (ev->note ());
2885 }
2886
2887 void
2888 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2889 {
2890         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2891
2892         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2893                 (*i)->hide_velocity ();
2894         }
2895
2896         editor->verbose_cursor()->hide ();
2897
2898         if (_pre_enter_cursor) {
2899                 editor->set_canvas_cursor (_pre_enter_cursor);
2900                 _pre_enter_cursor = 0;
2901         }
2902 }
2903
2904 void
2905 MidiRegionView::patch_entered (ArdourCanvas::CanvasPatchChange* ev)
2906 {
2907         ostringstream s;
2908         s << ((int) ev->patch()->program() + 1) << ":" << (ev->patch()->bank() + 1);
2909         show_verbose_cursor (s.str(), 10, 20);
2910 }
2911
2912 void
2913 MidiRegionView::patch_left (ArdourCanvas::CanvasPatchChange *)
2914 {
2915         trackview.editor().verbose_cursor()->hide ();
2916 }
2917
2918 void
2919 MidiRegionView::note_mouse_position (float x_fraction, float /*y_fraction*/, bool can_set_cursor)
2920 {
2921         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2922
2923         if (x_fraction > 0.0 && x_fraction < 0.25) {
2924                 editor->set_canvas_cursor (editor->cursors()->left_side_trim);
2925         } else if (x_fraction >= 0.75 && x_fraction < 1.0) {
2926                 editor->set_canvas_cursor (editor->cursors()->right_side_trim);
2927         } else {
2928                 if (_pre_enter_cursor && can_set_cursor) {
2929                         editor->set_canvas_cursor (_pre_enter_cursor);
2930                 }
2931         }
2932 }
2933
2934 void
2935 MidiRegionView::set_frame_color()
2936 {
2937         uint32_t f;
2938
2939         TimeAxisViewItem::set_frame_color ();
2940
2941         if (!frame) {
2942                 return;
2943         }
2944
2945         if (_selected) {
2946                 f = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2947         } else if (high_enough_for_name) {
2948                 f= ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2949         } else {
2950                 f = fill_color;
2951         }
2952
2953         if (!rect_visible) {
2954                 f = UINT_RGBA_CHANGE_A (f, 0);
2955         }
2956
2957         frame->property_fill_color_rgba() = f;
2958 }
2959
2960 void
2961 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2962 {
2963         switch (mode) {
2964         case AllChannels:
2965         case FilterChannels:
2966                 _force_channel = -1;
2967                 break;
2968         case ForceChannel:
2969                 _force_channel = mask;
2970                 mask = 0xFFFF; // Show all notes as active (below)
2971         };
2972
2973         // Update notes for selection
2974         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2975                 (*i)->on_channel_selection_change(mask);
2976         }
2977
2978         _last_channel_selection = mask;
2979
2980         _patch_changes.clear ();
2981         display_patch_changes ();
2982 }
2983
2984 void
2985 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2986 {
2987         _model_name         = model;
2988         _custom_device_mode = custom_device_mode;
2989         redisplay_model();
2990 }
2991
2992 void
2993 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2994 {
2995         if (_selection.empty()) {
2996                 return;
2997         }
2998
2999         PublicEditor& editor (trackview.editor());
3000
3001         switch (op) {
3002         case Delete:
3003                 /* XXX what to do ? */
3004                 break;
3005         case Cut:
3006         case Copy:
3007                 editor.get_cut_buffer().add (selection_as_cut_buffer());
3008                 break;
3009         default:
3010                 break;
3011         }
3012
3013         if (op != Copy) {
3014
3015                 start_note_diff_command();
3016
3017                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3018                         switch (op) {
3019                         case Copy:
3020                                 break;
3021                         case Delete:
3022                         case Cut:
3023                         case Clear:
3024                                 note_diff_remove_note (*i);
3025                                 break;
3026                         }
3027                 }
3028
3029                 apply_diff();
3030         }
3031 }
3032
3033 MidiCutBuffer*
3034 MidiRegionView::selection_as_cut_buffer () const
3035 {
3036         Notes notes;
3037
3038         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3039                 NoteType* n = (*i)->note().get();
3040                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
3041         }
3042
3043         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
3044         cb->set (notes);
3045
3046         return cb;
3047 }
3048
3049 /** This method handles undo */
3050 void
3051 MidiRegionView::paste (framepos_t pos, float times, const MidiCutBuffer& mcb)
3052 {
3053         if (mcb.empty()) {
3054                 return;
3055         }
3056
3057         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("MIDI paste @ %1 times %2\n", pos, times));
3058
3059         trackview.session()->begin_reversible_command (_("paste"));
3060
3061         start_note_diff_command (_("paste"));
3062
3063         Evoral::MusicalTime beat_delta;
3064         Evoral::MusicalTime paste_pos_beats;
3065         Evoral::MusicalTime duration;
3066         Evoral::MusicalTime end_point = 0;
3067
3068         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
3069         paste_pos_beats = frames_to_beats (pos - _region->position());
3070         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
3071         paste_pos_beats = 0;
3072
3073         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste data spans from %1 to %2 (%3) ; paste pos beats = %4 (based on %5 - %6 ; beat delta = %7\n",
3074                                                        (*mcb.notes().begin())->time(),
3075                                                        (*mcb.notes().rbegin())->end_time(),
3076                                                        duration, pos, _region->position(),
3077                                                        paste_pos_beats, beat_delta));
3078
3079         clear_selection ();
3080
3081         for (int n = 0; n < (int) times; ++n) {
3082
3083                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
3084
3085                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
3086                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
3087
3088                         /* make all newly added notes selected */
3089
3090                         note_diff_add_note (copied_note, true);
3091                         end_point = copied_note->end_time();
3092                 }
3093
3094                 paste_pos_beats += duration;
3095         }
3096
3097         /* if we pasted past the current end of the region, extend the region */
3098
3099         framepos_t end_frame = _region->position() + beats_to_frames (end_point);
3100         framepos_t region_end = _region->position() + _region->length() - 1;
3101
3102         if (end_frame > region_end) {
3103
3104                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste extended region from %1 to %2\n", region_end, end_frame));
3105
3106                 _region->clear_changes ();
3107                 _region->set_length (end_frame);
3108                 trackview.session()->add_command (new StatefulDiffCommand (_region));
3109         }
3110
3111         apply_diff (true);
3112
3113         trackview.session()->commit_reversible_command ();
3114 }
3115
3116 struct EventNoteTimeEarlyFirstComparator {
3117         bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
3118                 return a->note()->time() < b->note()->time();
3119         }
3120 };
3121
3122 void
3123 MidiRegionView::time_sort_events ()
3124 {
3125         if (!_sort_needed) {
3126                 return;
3127         }
3128
3129         EventNoteTimeEarlyFirstComparator cmp;
3130         _events.sort (cmp);
3131
3132         _sort_needed = false;
3133 }
3134
3135 void
3136 MidiRegionView::goto_next_note ()
3137 {
3138         // framepos_t pos = -1;
3139         bool use_next = false;
3140
3141         if (_events.back()->selected()) {
3142                 return;
3143         }
3144
3145         time_sort_events ();
3146
3147         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3148                 if ((*i)->selected()) {
3149                         use_next = true;
3150                         continue;
3151                 } else if (use_next) {
3152                         unique_select (*i);
3153                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
3154                         return;
3155                 }
3156         }
3157
3158         /* use the first one */
3159
3160         unique_select (_events.front());
3161
3162 }
3163
3164 void
3165 MidiRegionView::goto_previous_note ()
3166 {
3167         // framepos_t pos = -1;
3168         bool use_next = false;
3169
3170         if (_events.front()->selected()) {
3171                 return;
3172         }
3173
3174         time_sort_events ();
3175
3176         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
3177                 if ((*i)->selected()) {
3178                         use_next = true;
3179                         continue;
3180                 } else if (use_next) {
3181                         unique_select (*i);
3182                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
3183                         return;
3184                 }
3185         }
3186
3187         /* use the last one */
3188
3189         unique_select (*(_events.rbegin()));
3190 }
3191
3192 void
3193 MidiRegionView::selection_as_notelist (Notes& selected, bool allow_all_if_none_selected)
3194 {
3195         bool had_selected = false;
3196
3197         time_sort_events ();
3198
3199         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3200                 if ((*i)->selected()) {
3201                         selected.insert ((*i)->note());
3202                         had_selected = true;
3203                 }
3204         }
3205
3206         if (allow_all_if_none_selected && !had_selected) {
3207                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3208                         selected.insert ((*i)->note());
3209                 }
3210         }
3211 }
3212
3213 void
3214 MidiRegionView::update_ghost_note (double x, double y)
3215 {
3216         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3217
3218         _last_ghost_x = x;
3219         _last_ghost_y = y;
3220
3221         _note_group->w2i (x, y);
3222         framepos_t const f = snap_pixel_to_frame (x);
3223
3224         bool success;
3225         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, f);
3226
3227         if (!success) {
3228                 beats = 1;
3229         }
3230
3231         double length = frames_to_beats (snap_frame_to_frame (f + beats_to_frames (beats)) - f);
3232
3233         _ghost_note->note()->set_time (frames_to_beats (f + _region->start()));
3234         _ghost_note->note()->set_length (length);
3235         _ghost_note->note()->set_note (midi_stream_view()->y_to_note (y));
3236         _ghost_note->note()->set_channel (mtv->get_channel_for_add ());
3237
3238         /* the ghost note does not appear in ghost regions, so pass false in here */
3239         update_note (_ghost_note, false);
3240
3241         show_verbose_cursor (_ghost_note->note ());
3242 }
3243
3244 void
3245 MidiRegionView::create_ghost_note (double x, double y)
3246 {
3247         delete _ghost_note;
3248         _ghost_note = 0;
3249
3250         boost::shared_ptr<NoteType> g (new NoteType);
3251         _ghost_note = new NoEventCanvasNote (*this, *_note_group, g);
3252         _ghost_note->property_outline_color_rgba() = 0x000000aa;
3253         update_ghost_note (x, y);
3254         _ghost_note->show ();
3255
3256         _last_ghost_x = x;
3257         _last_ghost_y = y;
3258
3259         show_verbose_cursor (_ghost_note->note ());
3260 }
3261
3262 void
3263 MidiRegionView::snap_changed ()
3264 {
3265         if (!_ghost_note) {
3266                 return;
3267         }
3268
3269         create_ghost_note (_last_ghost_x, _last_ghost_y);
3270 }
3271
3272 void
3273 MidiRegionView::drop_down_keys ()
3274 {
3275         _mouse_state = None;
3276 }
3277
3278 void
3279 MidiRegionView::maybe_select_by_position (GdkEventButton* ev, double /*x*/, double y)
3280 {
3281         double note = midi_stream_view()->y_to_note(y);
3282         Events e;
3283         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3284
3285         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
3286
3287         if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
3288                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchGreaterThanOrEqual, (uint8_t) floor (note), chn_mask);
3289         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
3290                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchLessThanOrEqual, (uint8_t) floor (note), chn_mask);
3291         } else {
3292                 return;
3293         }
3294
3295         bool add_mrv_selection = false;
3296
3297         if (_selection.empty()) {
3298                 add_mrv_selection = true;
3299         }
3300
3301         for (Events::iterator i = e.begin(); i != e.end(); ++i) {
3302                 if (_selection.insert (*i).second) {
3303                         (*i)->set_selected (true);
3304                 }
3305         }
3306
3307         if (add_mrv_selection) {
3308                 PublicEditor& editor (trackview.editor());
3309                 editor.get_selection().add (this);
3310         }
3311 }
3312
3313 void
3314 MidiRegionView::color_handler ()
3315 {
3316         RegionView::color_handler ();
3317
3318         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3319                 (*i)->set_selected ((*i)->selected()); // will change color
3320         }
3321
3322         /* XXX probably more to do here */
3323 }
3324
3325 void
3326 MidiRegionView::enable_display (bool yn)
3327 {
3328         RegionView::enable_display (yn);
3329         if (yn) {
3330                 redisplay_model ();
3331         }
3332 }
3333
3334 void
3335 MidiRegionView::show_step_edit_cursor (Evoral::MusicalTime pos)
3336 {
3337         if (_step_edit_cursor == 0) {
3338                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
3339
3340                 _step_edit_cursor = new ArdourCanvas::SimpleRect (*group);
3341                 _step_edit_cursor->property_y1() = 0;
3342                 _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
3343                 _step_edit_cursor->property_fill_color_rgba() = RGBA_TO_UINT (45,0,0,90);
3344                 _step_edit_cursor->property_outline_color_rgba() = RGBA_TO_UINT (85,0,0,90);
3345         }
3346
3347         move_step_edit_cursor (pos);
3348         _step_edit_cursor->show ();
3349 }
3350
3351 void
3352 MidiRegionView::move_step_edit_cursor (Evoral::MusicalTime pos)
3353 {
3354         _step_edit_cursor_position = pos;
3355
3356         if (_step_edit_cursor) {
3357                 double pixel = trackview.editor().frame_to_pixel (beats_to_frames (pos));
3358                 _step_edit_cursor->property_x1() = pixel;
3359                 set_step_edit_cursor_width (_step_edit_cursor_width);
3360         }
3361 }
3362
3363 void
3364 MidiRegionView::hide_step_edit_cursor ()
3365 {
3366         if (_step_edit_cursor) {
3367                 _step_edit_cursor->hide ();
3368         }
3369 }
3370
3371 void
3372 MidiRegionView::set_step_edit_cursor_width (Evoral::MusicalTime beats)
3373 {
3374         _step_edit_cursor_width = beats;
3375
3376         if (_step_edit_cursor) {
3377                 _step_edit_cursor->property_x2() = _step_edit_cursor->property_x1() + trackview.editor().frame_to_pixel (beats_to_frames (beats));
3378         }
3379 }
3380
3381 /** Called when a diskstream on our track has received some data.  Update the view, if applicable.
3382  *  @param buf Data that has been recorded.
3383  *  @param w Source that this data will end up in.
3384  */
3385 void
3386 MidiRegionView::data_recorded (boost::shared_ptr<MidiBuffer> buf, boost::weak_ptr<MidiSource> w)
3387 {
3388         if (!_active_notes) {
3389                 /* we aren't actively being recorded to */
3390                 return;
3391         }
3392
3393         boost::shared_ptr<MidiSource> src = w.lock ();
3394         if (!src || src != midi_region()->midi_source()) {
3395                 /* recorded data was not destined for our source */
3396                 return;
3397         }
3398
3399         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (&trackview);
3400         BeatsFramesConverter converter (trackview.session()->tempo_map(), mtv->midi_track()->get_capture_start_frame (0));
3401
3402         framepos_t back = max_framepos;
3403
3404         for (MidiBuffer::iterator i = buf->begin(); i != buf->end(); ++i) {
3405                 Evoral::MIDIEvent<MidiBuffer::TimeType> const ev (*i, false);
3406                 assert (ev.buffer ());
3407
3408                 Evoral::MusicalTime const time_beats = converter.from (ev.time () - converter.origin_b ());
3409
3410                 if (ev.type() == MIDI_CMD_NOTE_ON) {
3411
3412                         boost::shared_ptr<NoteType> note (
3413                                 new NoteType (ev.channel(), time_beats, 0, ev.note(), ev.velocity())
3414                                                           );
3415
3416                         add_note (note, true);
3417
3418                         /* fix up our note range */
3419                         if (ev.note() < _current_range_min) {
3420                                 midi_stream_view()->apply_note_range (ev.note(), _current_range_max, true);
3421                         } else if (ev.note() > _current_range_max) {
3422                                 midi_stream_view()->apply_note_range (_current_range_min, ev.note(), true);
3423                         }
3424
3425                 } else if (ev.type() == MIDI_CMD_NOTE_OFF) {
3426                         resolve_note (ev.note (), time_beats);
3427                 }
3428
3429                 back = ev.time ();
3430         }
3431
3432         midi_stream_view()->check_record_layers (region(), back);
3433 }
3434
3435 void
3436 MidiRegionView::trim_front_starting ()
3437 {
3438         /* Reparent the note group to the region view's parent, so that it doesn't change
3439            when the region view is trimmed.
3440         */
3441         _temporary_note_group = new ArdourCanvas::Group (*group->property_parent ());
3442         _temporary_note_group->move (group->property_x(), group->property_y());
3443         _note_group->reparent (*_temporary_note_group);
3444 }
3445
3446 void
3447 MidiRegionView::trim_front_ending ()
3448 {
3449         _note_group->reparent (*group);
3450         delete _temporary_note_group;
3451         _temporary_note_group = 0;
3452
3453         if (_region->start() < 0) {
3454                 /* Trim drag made start time -ve; fix this */
3455                 midi_region()->fix_negative_start ();
3456         }
3457 }
3458
3459 void
3460 MidiRegionView::edit_patch_change (ArdourCanvas::CanvasPatchChange* pc)
3461 {
3462         PatchChangeDialog d (&_time_converter, trackview.session(), *pc->patch (), Gtk::Stock::APPLY);
3463         if (d.run () != Gtk::RESPONSE_ACCEPT) {
3464                 return;
3465         }
3466
3467         change_patch_change (pc->patch(), d.patch ());
3468 }
3469
3470
3471 void
3472 MidiRegionView::show_verbose_cursor (boost::shared_ptr<NoteType> n) const
3473 {
3474         char buf[24];
3475         snprintf (buf, sizeof (buf), "%s (%d) Chn %d\nVel %d",
3476                   Evoral::midi_note_name (n->note()).c_str(),
3477                   (int) n->note (),
3478                   (int) n->channel() + 1,
3479                   (int) n->velocity());
3480
3481         show_verbose_cursor (buf, 10, 20);
3482 }
3483
3484 void
3485 MidiRegionView::show_verbose_cursor (string const & text, double xoffset, double yoffset) const
3486 {
3487         double wx, wy;
3488
3489         trackview.editor().get_pointer_position (wx, wy);
3490
3491         wx += xoffset;
3492         wy += yoffset;
3493
3494         /* Flip the cursor above the mouse pointer if it would overlap the bottom of the canvas */
3495
3496         double x1, y1, x2, y2;
3497         trackview.editor().verbose_cursor()->canvas_item()->get_bounds (x1, y1, x2, y2);
3498
3499         if ((wy + y2 - y1) > trackview.editor().canvas_height()) {
3500                 wy -= (y2 - y1) + 2 * yoffset;
3501         }
3502
3503         trackview.editor().verbose_cursor()->set (text, wx, wy);
3504         trackview.editor().verbose_cursor()->show ();
3505 }