gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2007 Paul Davis
   3     Author: Dave Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23 #include <ostream>
  24
  25 #include <gtkmm.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include <sigc++/signal.h>
  30
  31 #include "pbd/memento_command.h"
  32 #include "pbd/stateful_diff_command.h"
  33
  34 #include "ardour/playlist.h"
  35 #include "ardour/tempo.h"
  36 #include "ardour/midi_region.h"
  37 #include "ardour/midi_source.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40 #include "ardour/session.h"
  41
  42 #include "evoral/Parameter.hpp"
  43 #include "evoral/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-program-change.h"
  52 #include "editor.h"
  53 #include "ghostregion.h"
  54 #include "gui_thread.h"
  55 #include "keyboard.h"
  56 #include "midi_cut_buffer.h"
  57 #include "midi_list_editor.h"
  58 #include "midi_region_view.h"
  59 #include "midi_streamview.h"
  60 #include "midi_time_axis.h"
  61 #include "midi_time_axis.h"
  62 #include "midi_util.h"
  63 #include "note_player.h"
  64 #include "public_editor.h"
  65 #include "rgb_macros.h"
  66 #include "selection.h"
  67 #include "simpleline.h"
  68 #include "streamview.h"
  69 #include "utils.h"
  70 #include "mouse_cursors.h"
  71
  72 #include "i18n.h"
  73
  74 using namespace ARDOUR;
  75 using namespace PBD;
  76 using namespace Editing;
  77 using namespace ArdourCanvas;
  78 using Gtkmm2ext::Keyboard;
  79
  80 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  81                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  82         : RegionView (parent, tv, r, spu, basic_color)
  83         , _force_channel(-1)
  84         , _last_channel_selection(0xFFFF)
  85         , _current_range_min(0)
  86         , _current_range_max(0)
  87         , _model_name(string())
  88         , _custom_device_mode(string())
  89         , _active_notes(0)
  90         , _note_group(new ArdourCanvas::Group(*group))
  91         , _note_diff_command (0)
  92         , _ghost_note(0)
  93         , _drag_rect (0)
  94         , _step_edit_cursor (0)
  95         , _step_edit_cursor_width (1.0)
  96         , _step_edit_cursor_position (0.0)
  97         , _temporary_note_group (0)
  98         , _mouse_state(None)
  99         , _pressed_button(0)
 100         , _sort_needed (true)
 101         , _optimization_iterator (_events.end())
 102         , _list_editor (0)
 103         , no_sound_notes (false)
 104         , _last_event_x (0)
 105         , _last_event_y (0)
 106         , pre_enter_cursor (0)
 107 {
 108         _note_group->raise_to_top();
 109         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 110
 111         connect_to_diskstream ();
 112 }
 113
 114 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
 115                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
 116                 TimeAxisViewItem::Visibility visibility)
 117         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 118         , _force_channel(-1)
 119         , _last_channel_selection(0xFFFF)
 120         , _model_name(string())
 121         , _custom_device_mode(string())
 122         , _active_notes(0)
 123         , _note_group(new ArdourCanvas::Group(*parent))
 124         , _note_diff_command (0)
 125         , _ghost_note(0)
 126         , _drag_rect (0)
 127         , _step_edit_cursor (0)
 128         , _step_edit_cursor_width (1.0)
 129         , _step_edit_cursor_position (0.0)
 130         , _temporary_note_group (0)
 131         , _mouse_state(None)
 132         , _pressed_button(0)
 133         , _sort_needed (true)
 134         , _optimization_iterator (_events.end())
 135         , _list_editor (0)
 136         , no_sound_notes (false)
 137         , _last_event_x (0)
 138         , _last_event_y (0)
 139 {
 140         _note_group->raise_to_top();
 141         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 142
 143         connect_to_diskstream ();
 144 }
 145
 146 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 147         : sigc::trackable(other)
 148         , RegionView (other)
 149         , _force_channel(-1)
 150         , _last_channel_selection(0xFFFF)
 151         , _model_name(string())
 152         , _custom_device_mode(string())
 153         , _active_notes(0)
 154         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 155         , _note_diff_command (0)
 156         , _ghost_note(0)
 157         , _drag_rect (0)
 158         , _step_edit_cursor (0)
 159         , _step_edit_cursor_width (1.0)
 160         , _step_edit_cursor_position (0.0)
 161         , _temporary_note_group (0)
 162         , _mouse_state(None)
 163         , _pressed_button(0)
 164         , _sort_needed (true)
 165         , _optimization_iterator (_events.end())
 166         , _list_editor (0)
 167         , no_sound_notes (false)
 168         , _last_event_x (0)
 169         , _last_event_y (0)
 170 {
 171         Gdk::Color c;
 172         int r,g,b,a;
 173
 174         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 175         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 176
 177         init (c, false);
 178 }
 179
 180 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 181         : RegionView (other, boost::shared_ptr<Region> (region))
 182         , _force_channel(-1)
 183         , _last_channel_selection(0xFFFF)
 184         , _model_name(string())
 185         , _custom_device_mode(string())
 186         , _active_notes(0)
 187         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 188         , _note_diff_command (0)
 189         , _ghost_note(0)
 190         , _drag_rect (0)
 191         , _step_edit_cursor (0)
 192         , _step_edit_cursor_width (1.0)
 193         , _step_edit_cursor_position (0.0)
 194         , _temporary_note_group (0)
 195         , _mouse_state(None)
 196         , _pressed_button(0)
 197         , _sort_needed (true)
 198         , _optimization_iterator (_events.end())
 199         , _list_editor (0)
 200         , no_sound_notes (false)
 201         , _last_event_x (0)
 202         , _last_event_y (0)
 203 {
 204         Gdk::Color c;
 205         int r,g,b,a;
 206
 207         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 208         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 209
 210         init (c, true);
 211 }
 212
 213 void
 214 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 215 {
 216         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 217
 218         CanvasNoteEvent::CanvasNoteEventDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
 219                                                          ui_bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
 220                                                          gui_context());
 221
 222         if (wfd) {
 223                 midi_region()->midi_source(0)->load_model();
 224         }
 225
 226         _model = midi_region()->midi_source(0)->model();
 227         _enable_display = false;
 228
 229         RegionView::init (basic_color, false);
 230
 231         compute_colors (basic_color);
 232
 233         set_height (trackview.current_height());
 234
 235         region_muted ();
 236         region_sync_changed ();
 237         region_resized (ARDOUR::bounds_change);
 238         region_locked ();
 239
 240         reset_width_dependent_items (_pixel_width);
 241
 242         set_colors ();
 243
 244         _enable_display = true;
 245         if (_model) {
 246                 if (wfd) {
 247                         display_model (_model);
 248                 }
 249         }
 250
 251         group->raise_to_top();
 252         group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 253
 254         midi_view()->signal_channel_mode_changed().connect(
 255                         sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 256
 257         midi_view()->signal_midi_patch_settings_changed().connect(
 258                         sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 259
 260         trackview.editor().SnapChanged.connect (snap_changed_connection, invalidator (*this), ui_bind (&MidiRegionView::snap_changed, this), gui_context ());
 261
 262         connect_to_diskstream ();
 263 }
 264
 265 void
 266 MidiRegionView::connect_to_diskstream ()
 267 {
 268         midi_view()->midi_track()->DataRecorded.connect (*this, invalidator (*this), ui_bind (&MidiRegionView::data_recorded, this, _1, _2), gui_context ());
 269 }
 270
 271 bool
 272 MidiRegionView::canvas_event(GdkEvent* ev)
 273 {
 274         switch (ev->type) {
 275         case GDK_ENTER_NOTIFY:
 276         case GDK_LEAVE_NOTIFY:
 277                 _last_event_x = ev->crossing.x;
 278                 _last_event_y = ev->crossing.y;
 279                 break;
 280         case GDK_MOTION_NOTIFY:
 281                 _last_event_x = ev->motion.x;
 282                 _last_event_y = ev->motion.y;
 283                 break;
 284         default:
 285                 break;
 286         }
 287
 288         if (!trackview.editor().internal_editing()) {
 289                 return false;
 290         }
 291
 292         /* XXX: note that until version 2.30, the GnomeCanvas did not propagate scroll events
 293            to its items, which means that ev->type == GDK_SCROLL will never be seen
 294         */
 295
 296         switch (ev->type) {
 297         case GDK_SCROLL:
 298                 return scroll (&ev->scroll);
 299
 300         case GDK_KEY_PRESS:
 301                 return key_press (&ev->key);
 302
 303         case GDK_KEY_RELEASE:
 304                 return key_release (&ev->key);
 305
 306         case GDK_BUTTON_PRESS:
 307                 return button_press (&ev->button);
 308
 309         case GDK_2BUTTON_PRESS:
 310                 return true;
 311
 312         case GDK_BUTTON_RELEASE:
 313                 return button_release (&ev->button);
 314
 315         case GDK_ENTER_NOTIFY:
 316                 return enter_notify (&ev->crossing);
 317
 318         case GDK_LEAVE_NOTIFY:
 319                 return leave_notify (&ev->crossing);
 320
 321         case GDK_MOTION_NOTIFY:
 322                 return motion (&ev->motion);
 323
 324         default:
 325                 break;
 326         }
 327
 328         return false;
 329 }
 330
 331 void
 332 MidiRegionView::remove_ghost_note ()
 333 {
 334         delete _ghost_note;
 335         _ghost_note = 0;
 336 }
 337
 338 bool
 339 MidiRegionView::enter_notify (GdkEventCrossing* ev)
 340 {
 341         trackview.editor().MouseModeChanged.connect (
 342                 _mouse_mode_connection, invalidator (*this), ui_bind (&MidiRegionView::mouse_mode_changed, this), gui_context ()
 343                 );
 344
 345         Keyboard::magic_widget_grab_focus();
 346         group->grab_focus();
 347
 348         if (trackview.editor().current_mouse_mode() == MouseRange) {
 349                 create_ghost_note (ev->x, ev->y);
 350         }
 351
 352         return false;
 353 }
 354
 355 bool
 356 MidiRegionView::leave_notify (GdkEventCrossing*)
 357 {
 358         _mouse_mode_connection.disconnect ();
 359
 360         trackview.editor().hide_verbose_canvas_cursor ();
 361         remove_ghost_note ();
 362         return false;
 363 }
 364
 365 void
 366 MidiRegionView::mouse_mode_changed ()
 367 {
 368         if (trackview.editor().current_mouse_mode() == MouseRange && trackview.editor().internal_editing()) {
 369                 create_ghost_note (_last_event_x, _last_event_y);
 370         } else {
 371                 remove_ghost_note ();
 372                 trackview.editor().hide_verbose_canvas_cursor ();
 373         }
 374 }
 375
 376 bool
 377 MidiRegionView::button_press (GdkEventButton* ev)
 378 {
 379         _last_x = ev->x;
 380         _last_y = ev->y;
 381         group->w2i (_last_x, _last_y);
 382
 383         if (_mouse_state != SelectTouchDragging && ev->button == 1) {
 384                 _pressed_button = ev->button;
 385                 _mouse_state = Pressed;
 386                 return true;
 387         }
 388
 389         _pressed_button = ev->button;
 390
 391         return true;
 392 }
 393
 394 bool
 395 MidiRegionView::button_release (GdkEventButton* ev)
 396 {
 397         double event_x, event_y;
 398         framepos_t event_frame = 0;
 399
 400         event_x = ev->x;
 401         event_y = ev->y;
 402         group->w2i(event_x, event_y);
 403         group->ungrab(ev->time);
 404         event_frame = trackview.editor().pixel_to_frame(event_x);
 405
 406         if (ev->button == 3) {
 407                 return false;
 408         } else if (_pressed_button != 1) {
 409                 return false;
 410         }
 411
 412         switch (_mouse_state) {
 413         case Pressed: // Clicked
 414                 switch (trackview.editor().current_mouse_mode()) {
 415                 case MouseObject:
 416                 case MouseTimeFX:
 417                         clear_selection();
 418                         maybe_select_by_position (ev, event_x, event_y);
 419                         break;
 420
 421                 case MouseRange:
 422                 {
 423                         bool success;
 424                         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, trackview.editor().pixel_to_frame (event_x));
 425                         if (!success) {
 426                                 beats = 1;
 427                         }
 428                         create_note_at (event_x, event_y, beats, true);
 429                         break;
 430                 }
 431                 default:
 432                         break;
 433                 }
 434                 _mouse_state = None;
 435                 break;
 436         case SelectRectDragging: // Select drag done
 437                 _mouse_state = None;
 438                 delete _drag_rect;
 439                 _drag_rect = 0;
 440                 break;
 441
 442         case AddDragging: // Add drag done
 443                 _mouse_state = None;
 444                 if (_drag_rect->property_x2() > _drag_rect->property_x1() + 2) {
 445                         const double x      = _drag_rect->property_x1();
 446                         const double length = trackview.editor().pixel_to_frame
 447                                 (_drag_rect->property_x2() - _drag_rect->property_x1());
 448
 449                         create_note_at (x, _drag_rect->property_y1(), frames_to_beats(length), true);
 450                 }
 451
 452                 delete _drag_rect;
 453                 _drag_rect = 0;
 454
 455                 create_ghost_note (ev->x, ev->y);
 456
 457         default:
 458                 break;
 459         }
 460
 461         return false;
 462 }
 463
 464 bool
 465 MidiRegionView::motion (GdkEventMotion* ev)
 466 {
 467         double event_x, event_y;
 468         framepos_t event_frame = 0;
 469
 470         event_x = ev->x;
 471         event_y = ev->y;
 472         group->w2i(event_x, event_y);
 473
 474         // convert event_x to global frame
 475         event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 476         trackview.editor().snap_to(event_frame);
 477         // convert event_frame back to local coordinates relative to position
 478         event_frame -= _region->position();
 479
 480         if (_ghost_note) {
 481                 update_ghost_note (ev->x, ev->y);
 482         }
 483
 484         /* any motion immediately hides velocity text that may have been visible */
 485
 486         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 487                 (*i)->hide_velocity ();
 488         }
 489
 490         switch (_mouse_state) {
 491         case Pressed: // Maybe start a drag, if we've moved a bit
 492
 493                 if (fabs (event_x - _last_x) < 1 && fabs (event_y - _last_y) < 1) {
 494                         /* no appreciable movement since the button was pressed */
 495                         return false;
 496                 }
 497
 498                 // Select drag start
 499                 if (_pressed_button == 1 && trackview.editor().current_mouse_mode() == MouseObject) {
 500                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 501                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 502                         _last_x = event_x;
 503                         _last_y = event_y;
 504                         _drag_start_x = event_x;
 505                         _drag_start_y = event_y;
 506
 507                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 508                         _drag_rect->property_x1() = event_x;
 509                         _drag_rect->property_y1() = event_y;
 510                         _drag_rect->property_x2() = event_x;
 511                         _drag_rect->property_y2() = event_y;
 512                         _drag_rect->property_outline_what() = 0xFF;
 513                         _drag_rect->property_outline_color_rgba()
 514                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 515                         _drag_rect->property_fill_color_rgba()
 516                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 517
 518                         _mouse_state = SelectRectDragging;
 519                         return true;
 520
 521                         // Add note drag start
 522                 } else if (trackview.editor().internal_editing()) {
 523
 524                         delete _ghost_note;
 525                         _ghost_note = 0;
 526
 527                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 528                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 529                         _last_x = event_x;
 530                         _last_y = event_y;
 531                         _drag_start_x = event_x;
 532                         _drag_start_y = event_y;
 533
 534                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 535                         _drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 536
 537                         _drag_rect->property_y1() = midi_stream_view()->note_to_y(
 538                                 midi_stream_view()->y_to_note(event_y));
 539                         _drag_rect->property_x2() = trackview.editor().frame_to_pixel(event_frame);
 540                         _drag_rect->property_y2() = _drag_rect->property_y1()
 541                                 + floor(midi_stream_view()->note_height());
 542                         _drag_rect->property_outline_what() = 0xFF;
 543                         _drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 544                         _drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 545
 546                         _mouse_state = AddDragging;
 547                         return true;
 548                 }
 549
 550                 return false;
 551
 552         case SelectRectDragging: // Select drag motion
 553         case AddDragging: // Add note drag motion
 554                 if (ev->is_hint) {
 555                         int t_x;
 556                         int t_y;
 557                         GdkModifierType state;
 558                         gdk_window_get_pointer(ev->window, &t_x, &t_y, &state);
 559                         event_x = t_x;
 560                         event_y = t_y;
 561                 }
 562
 563                 if (_mouse_state == AddDragging)
 564                         event_x = trackview.editor().frame_to_pixel(event_frame);
 565
 566                 if (_drag_rect) {
 567                         if (event_x > _drag_start_x)
 568                                 _drag_rect->property_x2() = event_x;
 569                         else
 570                                 _drag_rect->property_x1() = event_x;
 571                 }
 572
 573                 if (_drag_rect && _mouse_state == SelectRectDragging) {
 574                         if (event_y > _drag_start_y)
 575                                 _drag_rect->property_y2() = event_y;
 576                         else
 577                                 _drag_rect->property_y1() = event_y;
 578
 579                         update_drag_selection(_drag_start_x, event_x, _drag_start_y, event_y);
 580                 }
 581
 582                 _last_x = event_x;
 583                 _last_y = event_y;
 584
 585         case SelectTouchDragging:
 586                 return false;
 587
 588         default:
 589                 break;
 590         }
 591
 592         return false;
 593 }
 594
 595
 596 bool
 597 MidiRegionView::scroll (GdkEventScroll* ev)
 598 {
 599         if (_selection.empty()) {
 600                 return false;
 601         }
 602
 603         trackview.editor().hide_verbose_canvas_cursor ();
 604
 605         bool fine = !Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier);
 606
 607         if (ev->direction == GDK_SCROLL_UP) {
 608                 change_velocities (true, fine, false);
 609         } else if (ev->direction == GDK_SCROLL_DOWN) {
 610                 change_velocities (false, fine, false);
 611         }
 612         return true;
 613 }
 614
 615 bool
 616 MidiRegionView::key_press (GdkEventKey* ev)
 617 {
 618         /* since GTK bindings are generally activated on press, and since
 619            detectable auto-repeat is the name of the game and only sends
 620            repeated presses, carry out key actions at key press, not release.
 621         */
 622
 623         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R){
 624                 _mouse_state = SelectTouchDragging;
 625                 return true;
 626
 627         } else if (ev->keyval == GDK_Escape) {
 628                 clear_selection();
 629                 _mouse_state = None;
 630
 631         } else if (ev->keyval == GDK_comma || ev->keyval == GDK_period) {
 632
 633                 bool start = (ev->keyval == GDK_comma);
 634                 bool end = (ev->keyval == GDK_period);
 635                 bool shorter = Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier);
 636                 bool fine = Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 637
 638                 change_note_lengths (fine, shorter, 0.0, start, end);
 639
 640                 return true;
 641
 642         } else if (ev->keyval == GDK_Delete) {
 643
 644                 delete_selection();
 645                 return true;
 646
 647         } else if (ev->keyval == GDK_Tab) {
 648
 649                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 650                         goto_previous_note ();
 651                 } else {
 652                         goto_next_note ();
 653                 }
 654                 return true;
 655
 656         } else if (ev->keyval == GDK_Up) {
 657
 658                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 659                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 660
 661                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 662                         change_velocities (true, fine, allow_smush);
 663                 } else {
 664                         transpose (true, fine, allow_smush);
 665                 }
 666                 return true;
 667
 668         } else if (ev->keyval == GDK_Down) {
 669
 670                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 671                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 672
 673                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 674                         change_velocities (false, fine, allow_smush);
 675                 } else {
 676                         transpose (false, fine, allow_smush);
 677                 }
 678                 return true;
 679
 680         } else if (ev->keyval == GDK_Left) {
 681
 682                 nudge_notes (false);
 683                 return true;
 684
 685         } else if (ev->keyval == GDK_Right) {
 686
 687                 nudge_notes (true);
 688                 return true;
 689
 690         } else if (ev->keyval == GDK_Control_L) {
 691                 return true;
 692
 693         }
 694
 695         return false;
 696 }
 697
 698 bool
 699 MidiRegionView::key_release (GdkEventKey* ev)
 700 {
 701         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R) {
 702                 _mouse_state = None;
 703                 return true;
 704         }
 705         return false;
 706 }
 707
 708 void
 709 MidiRegionView::show_list_editor ()
 710 {
 711         if (!_list_editor) {
 712                 _list_editor = new MidiListEditor (trackview.session(), midi_region());
 713         }
 714         _list_editor->present ();
 715 }
 716
 717 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 718  * \param x horizontal position in pixels
 719  * \param y vertical position in pixels
 720  * \param length duration of the note in beats, which will be snapped to the grid
 721  * \param sh true to make the note 1 frame shorter than the snapped version of \a length.
 722  */
 723 void
 724 MidiRegionView::create_note_at(double x, double y, double length, bool sh)
 725 {
 726         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 727         MidiStreamView* const view = mtv->midi_view();
 728
 729         double note = midi_stream_view()->y_to_note(y);
 730
 731         assert(note >= 0.0);
 732         assert(note <= 127.0);
 733
 734         // Start of note in frames relative to region start
 735         framepos_t const start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 736         assert(start_frames >= 0);
 737
 738         // Snap length
 739         length = frames_to_beats(
 740                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 741
 742         assert (length != 0);
 743
 744         if (sh) {
 745                 length = frames_to_beats (beats_to_frames (length) - 1);
 746         }
 747
 748         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
 749         int chn_cnt = 0;
 750         uint8_t channel = 0;
 751
 752         /* pick the highest selected channel, unless all channels are selected,
 753            which is interpreted to mean channel 1 (zero)
 754         */
 755
 756         for (uint16_t i = 0; i < 16; ++i) {
 757                 if (chn_mask & (1<<i)) {
 758                         channel = i;
 759                         chn_cnt++;
 760                 }
 761         }
 762
 763         if (chn_cnt == 16) {
 764                 channel = 0;
 765         }
 766
 767         const boost::shared_ptr<NoteType> new_note (new NoteType (channel,
 768                                                                   frames_to_beats(start_frames + _region->start()), length,
 769                                                                   (uint8_t)note, 0x40));
 770
 771         if (_model->contains (new_note)) {
 772                 return;
 773         }
 774
 775         view->update_note_range(new_note->note());
 776
 777         MidiModel::NoteDiffCommand* cmd = _model->new_note_diff_command("add note");
 778         cmd->add (new_note);
 779         _model->apply_command(*trackview.session(), cmd);
 780
 781         play_midi_note (new_note);
 782 }
 783
 784 void
 785 MidiRegionView::clear_events()
 786 {
 787         clear_selection();
 788
 789         MidiGhostRegion* gr;
 790         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 791                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 792                         gr->clear_events();
 793                 }
 794         }
 795
 796         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 797                 delete *i;
 798         }
 799
 800         _events.clear();
 801         _pgm_changes.clear();
 802         _sys_exes.clear();
 803         _optimization_iterator = _events.end();
 804 }
 805
 806 void
 807 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 808 {
 809         _model = model;
 810
 811         content_connection.disconnect ();
 812         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 813
 814         clear_events ();
 815
 816         if (_enable_display) {
 817                 redisplay_model();
 818         }
 819 }
 820
 821 void
 822 MidiRegionView::start_note_diff_command (string name)
 823 {
 824         if (!_note_diff_command) {
 825                 _note_diff_command = _model->new_note_diff_command (name);
 826         }
 827 }
 828
 829 void
 830 MidiRegionView::note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 831 {
 832         if (_note_diff_command) {
 833                 _note_diff_command->add (note);
 834         }
 835         if (selected) {
 836                 _marked_for_selection.insert(note);
 837         }
 838         if (show_velocity) {
 839                 _marked_for_velocity.insert(note);
 840         }
 841 }
 842
 843 void
 844 MidiRegionView::note_diff_remove_note (ArdourCanvas::CanvasNoteEvent* ev)
 845 {
 846         if (_note_diff_command && ev->note()) {
 847                 _note_diff_command->remove(ev->note());
 848         }
 849 }
 850
 851 void
 852 MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 853                                       MidiModel::NoteDiffCommand::Property property,
 854                                       uint8_t val)
 855 {
 856         if (_note_diff_command) {
 857                 _note_diff_command->change (ev->note(), property, val);
 858         }
 859 }
 860
 861 void
 862 MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 863                                       MidiModel::NoteDiffCommand::Property property,
 864                                       Evoral::MusicalTime val)
 865 {
 866         if (_note_diff_command) {
 867                 _note_diff_command->change (ev->note(), property, val);
 868         }
 869 }
 870
 871 void
 872 MidiRegionView::apply_diff ()
 873 {
 874         bool add_or_remove;
 875
 876         if (!_note_diff_command) {
 877                 return;
 878         }
 879
 880         if ((add_or_remove = _note_diff_command->adds_or_removes())) {
 881                 // Mark all selected notes for selection when model reloads
 882                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 883                         _marked_for_selection.insert((*i)->note());
 884                 }
 885         }
 886
 887         _model->apply_command(*trackview.session(), _note_diff_command);
 888         _note_diff_command = 0;
 889         midi_view()->midi_track()->playlist_modified();
 890
 891         if (add_or_remove) {
 892                 _marked_for_selection.clear();
 893         }
 894
 895         _marked_for_velocity.clear();
 896 }
 897
 898 void
 899 MidiRegionView::apply_diff_as_subcommand ()
 900 {
 901         bool add_or_remove;
 902
 903         if (!_note_diff_command) {
 904                 return;
 905         }
 906
 907         if ((add_or_remove = _note_diff_command->adds_or_removes())) {
 908                 // Mark all selected notes for selection when model reloads
 909                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 910                         _marked_for_selection.insert((*i)->note());
 911                 }
 912         }
 913
 914         _model->apply_command_as_subcommand(*trackview.session(), _note_diff_command);
 915         _note_diff_command = 0;
 916         midi_view()->midi_track()->playlist_modified();
 917
 918         if (add_or_remove) {
 919                 _marked_for_selection.clear();
 920         }
 921         _marked_for_velocity.clear();
 922 }
 923
 924
 925 void
 926 MidiRegionView::abort_command()
 927 {
 928         delete _note_diff_command;
 929         _note_diff_command = 0;
 930         clear_selection();
 931 }
 932
 933 CanvasNoteEvent*
 934 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 935 {
 936         if (_optimization_iterator != _events.end()) {
 937                 ++_optimization_iterator;
 938         }
 939
 940         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 941                 return *_optimization_iterator;
 942         }
 943
 944         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 945                 if ((*_optimization_iterator)->note() == note) {
 946                         return *_optimization_iterator;
 947                 }
 948         }
 949
 950         return 0;
 951 }
 952
 953 void
 954 MidiRegionView::get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::NoteOperator op, uint8_t val, int chan_mask)
 955 {
 956         MidiModel::Notes notes;
 957         _model->get_notes (notes, op, val, chan_mask);
 958
 959         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 960                 CanvasNoteEvent* cne = find_canvas_note (*n);
 961                 if (cne) {
 962                         e.push_back (cne);
 963                 }
 964         }
 965 }
 966
 967 void
 968 MidiRegionView::redisplay_model()
 969 {
 970         // Don't redisplay the model if we're currently recording and displaying that
 971         if (_active_notes) {
 972                 return;
 973         }
 974
 975         if (!_model) {
 976                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 977                 return;
 978         }
 979
 980         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 981                 (*i)->invalidate ();
 982         }
 983
 984         MidiModel::ReadLock lock(_model->read_lock());
 985
 986         MidiModel::Notes& notes (_model->notes());
 987         _optimization_iterator = _events.begin();
 988
 989         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 990
 991                 boost::shared_ptr<NoteType> note (*n);
 992                 CanvasNoteEvent* cne;
 993                 bool visible;
 994
 995                 if (note_in_region_range (note, visible)) {
 996
 997                         if ((cne = find_canvas_note (note)) != 0) {
 998
 999                                 cne->validate ();
1000
1001                                 CanvasNote* cn;
1002                                 CanvasHit* ch;
1003
1004                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
1005                                         update_note (cn);
1006                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
1007                                         update_hit (ch);
1008                                 }
1009
1010                                 if (visible) {
1011                                         cne->show ();
1012                                 } else {
1013                                         cne->hide ();
1014                                 }
1015
1016                         } else {
1017
1018                                 add_note (note, visible);
1019                         }
1020
1021                 } else {
1022
1023                         if ((cne = find_canvas_note (note)) != 0) {
1024                                 cne->validate ();
1025                                 cne->hide ();
1026                         }
1027                 }
1028         }
1029
1030
1031         /* remove note items that are no longer valid */
1032
1033         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
1034                 if (!(*i)->valid ()) {
1035                         delete *i;
1036                         i = _events.erase (i);
1037                 } else {
1038                         ++i;
1039                 }
1040         }
1041
1042         _pgm_changes.clear();
1043         _sys_exes.clear();
1044
1045         display_sysexes();
1046         display_program_changes();
1047
1048         _marked_for_selection.clear ();
1049         _marked_for_velocity.clear ();
1050
1051         /* we may have caused _events to contain things out of order (e.g. if a note
1052            moved earlier or later). we don't generally need them in time order, but
1053            make a note that a sort is required for those cases that require it.
1054         */
1055
1056         _sort_needed = true;
1057 }
1058
1059 void
1060 MidiRegionView::display_program_changes()
1061 {
1062         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1063         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
1064
1065         for (uint8_t i = 0; i < 16; ++i) {
1066                 if (chn_mask & (1<<i)) {
1067                         display_program_changes_on_channel (i);
1068                 }
1069         }
1070 }
1071
1072 void
1073 MidiRegionView::display_program_changes_on_channel(uint8_t channel)
1074 {
1075         boost::shared_ptr<Evoral::Control> control =
1076                 _model->control(Evoral::MIDI::ProgramChange (MidiPgmChangeAutomation, channel));
1077
1078         if (!control) {
1079                 return;
1080         }
1081
1082         Glib::Mutex::Lock lock (control->list()->lock());
1083
1084         for (AutomationList::const_iterator event = control->list()->begin();
1085                         event != control->list()->end(); ++event) {
1086                 double event_time     = (*event)->when;
1087                 double program_number = floor((*event)->value + 0.5);
1088
1089                 // Get current value of bank select MSB at time of the program change
1090                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1091                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1092                 uint8_t msb = 0;
1093                 if (msb_control != 0) {
1094                         msb = uint8_t(floor(msb_control->get_double(true, event_time) + 0.5));
1095                 }
1096
1097                 // Get current value of bank select LSB at time of the program change
1098                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1099                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1100                 uint8_t lsb = 0;
1101                 if (lsb_control != 0) {
1102                         lsb = uint8_t(floor(lsb_control->get_double(true, event_time) + 0.5));
1103                 }
1104
1105                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
1106
1107                 boost::shared_ptr<MIDI::Name::Patch> patch =
1108                         MIDI::Name::MidiPatchManager::instance().find_patch(
1109                                         _model_name, _custom_device_mode, channel, patch_key);
1110
1111                 PCEvent program_change(event_time, uint8_t(program_number), channel);
1112
1113                 if (patch != 0) {
1114                         add_pgm_change(program_change, patch->name());
1115                 } else {
1116                         char buf[4];
1117                         // program_number is zero-based: convert to one-based
1118                         snprintf(buf, 4, "%d", int(program_number+1));
1119                         add_pgm_change(program_change, buf);
1120                 }
1121         }
1122 }
1123
1124 void
1125 MidiRegionView::display_sysexes()
1126 {
1127         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1128                 Evoral::MusicalTime time = (*i)->time();
1129                 assert(time >= 0);
1130
1131                 ostringstream str;
1132                 str << hex;
1133                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
1134                         str << int((*i)->buffer()[b]);
1135                         if (b != (*i)->size() -1) {
1136                                 str << " ";
1137                         }
1138                 }
1139                 string text = str.str();
1140
1141                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
1142
1143                 double height = midi_stream_view()->contents_height();
1144
1145                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
1146                                 new CanvasSysEx(*this, *_note_group, text, height, x, 1.0));
1147
1148                 // Show unless program change is beyond the region bounds
1149                 if (time - _region->start() >= _region->length() || time < _region->start()) {
1150                         sysex->hide();
1151                 } else {
1152                         sysex->show();
1153                 }
1154
1155                 _sys_exes.push_back(sysex);
1156         }
1157 }
1158
1159
1160 MidiRegionView::~MidiRegionView ()
1161 {
1162         in_destructor = true;
1163
1164         trackview.editor().hide_verbose_canvas_cursor ();
1165
1166         note_delete_connection.disconnect ();
1167
1168         delete _list_editor;
1169
1170         RegionViewGoingAway (this); /* EMIT_SIGNAL */
1171
1172         if (_active_notes) {
1173                 end_write();
1174         }
1175
1176         _selection.clear();
1177         clear_events();
1178
1179         delete _note_group;
1180         delete _note_diff_command;
1181         delete _step_edit_cursor;
1182         delete _temporary_note_group;
1183 }
1184
1185 void
1186 MidiRegionView::region_resized (const PropertyChange& what_changed)
1187 {
1188         RegionView::region_resized(what_changed);
1189
1190         if (what_changed.contains (ARDOUR::Properties::position)) {
1191                 set_duration(_region->length(), 0);
1192                 if (_enable_display) {
1193                         redisplay_model();
1194                 }
1195         }
1196 }
1197
1198 void
1199 MidiRegionView::reset_width_dependent_items (double pixel_width)
1200 {
1201         RegionView::reset_width_dependent_items(pixel_width);
1202         assert(_pixel_width == pixel_width);
1203
1204         if (_enable_display) {
1205                 redisplay_model();
1206         }
1207
1208         move_step_edit_cursor (_step_edit_cursor_position);
1209         set_step_edit_cursor_width (_step_edit_cursor_width);
1210 }
1211
1212 void
1213 MidiRegionView::set_height (double height)
1214 {
1215         static const double FUDGE = 2.0;
1216         const double old_height = _height;
1217         RegionView::set_height(height);
1218         _height = height - FUDGE;
1219
1220         apply_note_range(midi_stream_view()->lowest_note(),
1221                          midi_stream_view()->highest_note(),
1222                          height != old_height + FUDGE);
1223
1224         if (name_pixbuf) {
1225                 name_pixbuf->raise_to_top();
1226         }
1227
1228         for (PgmChanges::iterator x = _pgm_changes.begin(); x != _pgm_changes.end(); ++x) {
1229                 (*x)->set_height (midi_stream_view()->contents_height());
1230         }
1231
1232         if (_step_edit_cursor) {
1233                 _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
1234         }
1235 }
1236
1237
1238 /** Apply the current note range from the stream view
1239  * by repositioning/hiding notes as necessary
1240  */
1241 void
1242 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1243 {
1244         if (!_enable_display) {
1245                 return;
1246         }
1247
1248         if (!force && _current_range_min == min && _current_range_max == max) {
1249                 return;
1250         }
1251
1252         _current_range_min = min;
1253         _current_range_max = max;
1254
1255         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1256                 CanvasNoteEvent* event = *i;
1257                 boost::shared_ptr<NoteType> note (event->note());
1258
1259                 if (note->note() < _current_range_min ||
1260                     note->note() > _current_range_max) {
1261                         event->hide();
1262                 } else {
1263                         event->show();
1264                 }
1265
1266                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1267
1268                         const double y1 = midi_stream_view()->note_to_y(note->note());
1269                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1270
1271                         cnote->property_y1() = y1;
1272                         cnote->property_y2() = y2;
1273
1274                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1275
1276                         const double diamond_size = update_hit (chit);
1277
1278                         chit->set_height (diamond_size);
1279                 }
1280         }
1281 }
1282
1283 GhostRegion*
1284 MidiRegionView::add_ghost (TimeAxisView& tv)
1285 {
1286         CanvasNote* note;
1287
1288         double unit_position = _region->position () / samples_per_unit;
1289         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1290         MidiGhostRegion* ghost;
1291
1292         if (mtv && mtv->midi_view()) {
1293                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1294                    to allow having midi notes on top of note lines and waveforms.
1295                  */
1296                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1297         } else {
1298                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1299         }
1300
1301         ghost->set_height ();
1302         ghost->set_duration (_region->length() / samples_per_unit);
1303         ghosts.push_back (ghost);
1304
1305         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1306                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1307                         ghost->add_note(note);
1308                 }
1309         }
1310
1311         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
1312
1313         return ghost;
1314 }
1315
1316
1317 /** Begin tracking note state for successive calls to add_event
1318  */
1319 void
1320 MidiRegionView::begin_write()
1321 {
1322         assert(!_active_notes);
1323         _active_notes = new CanvasNote*[128];
1324         for (unsigned i=0; i < 128; ++i) {
1325                 _active_notes[i] = 0;
1326         }
1327 }
1328
1329
1330 /** Destroy note state for add_event
1331  */
1332 void
1333 MidiRegionView::end_write()
1334 {
1335         delete[] _active_notes;
1336         _active_notes = 0;
1337         _marked_for_selection.clear();
1338         _marked_for_velocity.clear();
1339 }
1340
1341
1342 /** Resolve an active MIDI note (while recording).
1343  */
1344 void
1345 MidiRegionView::resolve_note(uint8_t note, double end_time)
1346 {
1347         if (midi_view()->note_mode() != Sustained) {
1348                 return;
1349         }
1350
1351         if (_active_notes && _active_notes[note]) {
1352                 const framepos_t end_time_frames = beats_to_frames(end_time) - _region->start();
1353                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1354                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1355                 _active_notes[note] = 0;
1356         }
1357 }
1358
1359
1360 /** Extend active notes to rightmost edge of region (if length is changed)
1361  */
1362 void
1363 MidiRegionView::extend_active_notes()
1364 {
1365         if (!_active_notes) {
1366                 return;
1367         }
1368
1369         for (unsigned i=0; i < 128; ++i) {
1370                 if (_active_notes[i]) {
1371                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1372                 }
1373         }
1374 }
1375
1376
1377 void
1378 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1379 {
1380         if (no_sound_notes || !trackview.editor().sound_notes()) {
1381                 return;
1382         }
1383
1384         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1385
1386         if (!route_ui || !route_ui->midi_track()) {
1387                 return;
1388         }
1389
1390         NotePlayer* np = new NotePlayer (route_ui->midi_track());
1391         np->add (note);
1392         np->play ();
1393 }
1394
1395 void
1396 MidiRegionView::play_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
1397 {
1398         if (no_sound_notes || !trackview.editor().sound_notes()) {
1399                 return;
1400         }
1401
1402         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1403
1404         if (!route_ui || !route_ui->midi_track()) {
1405                 return;
1406         }
1407
1408         NotePlayer* np = new NotePlayer (route_ui->midi_track());
1409
1410         for (vector<boost::shared_ptr<NoteType> >::iterator n = notes.begin(); n != notes.end(); ++n) {
1411                 np->add (*n);
1412         }
1413
1414         np->play ();
1415 }
1416
1417
1418 bool
1419 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1420 {
1421         const framepos_t note_start_frames = beats_to_frames(note->time());
1422
1423         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1424                 (note_start_frames < _region->start());
1425
1426         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1427                 (note->note() <= midi_stream_view()->highest_note());
1428
1429         return !outside;
1430 }
1431
1432 void
1433 MidiRegionView::update_note (CanvasNote* ev)
1434 {
1435         boost::shared_ptr<NoteType> note = ev->note();
1436
1437         const framepos_t note_start_frames = beats_to_frames(note->time());
1438
1439         /* trim note display to not overlap the end of its region */
1440         const framepos_t note_end_frames = min (beats_to_frames (note->end_time()), _region->start() + _region->length());
1441
1442         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1443         const double y1 = midi_stream_view()->note_to_y(note->note());
1444         const double note_endpixel = trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1445
1446         ev->property_x1() = x;
1447         ev->property_y1() = y1;
1448         if (note->length() > 0) {
1449                 ev->property_x2() = note_endpixel;
1450         } else {
1451                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1452         }
1453         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1454
1455         if (note->length() == 0) {
1456                 if (_active_notes) {
1457                         assert(note->note() < 128);
1458                         // If this note is already active there's a stuck note,
1459                         // finish the old note rectangle
1460                         if (_active_notes[note->note()]) {
1461                                 CanvasNote* const old_rect = _active_notes[note->note()];
1462                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1463                                 old_rect->property_x2() = x;
1464                                 old_rect->property_outline_what() = (guint32) 0xF;
1465                         }
1466                         _active_notes[note->note()] = ev;
1467                 }
1468                 /* outline all but right edge */
1469                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1470         } else {
1471                 /* outline all edges */
1472                 ev->property_outline_what() = (guint32) 0xF;
1473         }
1474 }
1475
1476 double
1477 MidiRegionView::update_hit (CanvasHit* ev)
1478 {
1479         boost::shared_ptr<NoteType> note = ev->note();
1480
1481         const framepos_t note_start_frames = beats_to_frames(note->time());
1482         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1483         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1484         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1485
1486         ev->move_to (x, y);
1487
1488         return diamond_size;
1489 }
1490
1491 /** Add a MIDI note to the view (with length).
1492  *
1493  * If in sustained mode, notes with length 0 will be considered active
1494  * notes, and resolve_note should be called when the corresponding note off
1495  * event arrives, to properly display the note.
1496  */
1497 void
1498 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1499 {
1500         CanvasNoteEvent* event = 0;
1501
1502         assert(note->time() >= 0);
1503         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1504
1505         if (midi_view()->note_mode() == Sustained) {
1506
1507                 CanvasNote* ev_rect = new CanvasNote(*this, *_note_group, note);
1508
1509                 update_note (ev_rect);
1510
1511                 event = ev_rect;
1512
1513                 MidiGhostRegion* gr;
1514
1515                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1516                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1517                                 gr->add_note(ev_rect);
1518                         }
1519                 }
1520
1521         } else if (midi_view()->note_mode() == Percussive) {
1522
1523                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1524
1525                 CanvasHit* ev_diamond = new CanvasHit(*this, *_note_group, diamond_size, note);
1526
1527                 update_hit (ev_diamond);
1528
1529                 event = ev_diamond;
1530
1531         } else {
1532                 event = 0;
1533         }
1534
1535         if (event) {
1536                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1537                         note_selected(event, true);
1538                 }
1539
1540                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1541                         event->show_velocity();
1542                 }
1543                 event->on_channel_selection_change(_last_channel_selection);
1544                 _events.push_back(event);
1545
1546                 if (visible) {
1547                         event->show();
1548                 } else {
1549                         event->hide ();
1550                 }
1551         }
1552 }
1553
1554 void
1555 MidiRegionView::step_add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1556                                Evoral::MusicalTime pos, Evoral::MusicalTime len)
1557 {
1558         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1559
1560         /* potentially extend region to hold new note */
1561
1562         framepos_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1563         framepos_t region_end = _region->position() + _region->length() - 1;
1564
1565         if (end_frame > region_end) {
1566                 _region->set_length (end_frame - _region->position(), this);
1567         }
1568
1569         _marked_for_selection.clear ();
1570         clear_selection ();
1571
1572         start_note_diff_command (_("step add"));
1573         note_diff_add_note (new_note, true, false);
1574         apply_diff();
1575
1576         // last_step_edit_note = new_note;
1577 }
1578
1579 void
1580 MidiRegionView::step_sustain (Evoral::MusicalTime beats)
1581 {
1582         change_note_lengths (false, false, beats, false, true);
1583 }
1584
1585 void
1586 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1587 {
1588         assert(program.time >= 0);
1589
1590         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1591
1592         double height = midi_stream_view()->contents_height();
1593
1594         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1595                         new CanvasProgramChange(*this, *_note_group,
1596                                         displaytext,
1597                                         height,
1598                                         x, 1.0,
1599                                         _model_name,
1600                                         _custom_device_mode,
1601                                         program.time, program.channel, program.value));
1602
1603         // Show unless program change is beyond the region bounds
1604         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1605                 pgm_change->hide();
1606         } else {
1607                 pgm_change->show();
1608         }
1609
1610         _pgm_changes.push_back(pgm_change);
1611 }
1612
1613 void
1614 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1615 {
1616         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1617         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1618         double msb = 0.0;
1619         if (msb_control != 0) {
1620                 msb = int(msb_control->get_double(true, time));
1621         }
1622
1623         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1624         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1625         double lsb = 0.0;
1626         if (lsb_control != 0) {
1627                 lsb = lsb_control->get_double(true, time);
1628         }
1629
1630         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1631         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1632         double program_number = -1.0;
1633         if (program_control != 0) {
1634                 program_number = program_control->get_double(true, time);
1635         }
1636
1637         key.msb = (int) floor(msb + 0.5);
1638         key.lsb = (int) floor(lsb + 0.5);
1639         key.program_number = (int) floor(program_number + 0.5);
1640         assert(key.is_sane());
1641 }
1642
1643
1644 void
1645 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1646 {
1647         // TODO: Get the real event here and alter them at the original times
1648         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1649         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1650         if (msb_control != 0) {
1651                 msb_control->set_double(double(new_patch.msb), true, old_program.time);
1652         }
1653
1654         // TODO: Get the real event here and alter them at the original times
1655         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1656         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1657         if (lsb_control != 0) {
1658                 lsb_control->set_double(double(new_patch.lsb), true, old_program.time);
1659         }
1660
1661         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1662         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1663
1664         assert(program_control != 0);
1665         program_control->set_double(float(new_patch.program_number), true, old_program.time);
1666
1667         _pgm_changes.clear ();
1668         display_program_changes (); // XXX would be nice to limit to just old_program.channel
1669 }
1670
1671 void
1672 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1673 {
1674         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1675         alter_program_change(program_change_event, new_patch);
1676 }
1677
1678 void
1679 MidiRegionView::previous_program(CanvasProgramChange& program)
1680 {
1681         if (program.program() < 127) {
1682                 MIDI::Name::PatchPrimaryKey key;
1683                 get_patch_key_at(program.event_time(), program.channel(), key);
1684                 PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1685
1686                 key.program_number++;
1687                 alter_program_change(program_change_event, key);
1688         }
1689 }
1690
1691 void
1692 MidiRegionView::next_program(CanvasProgramChange& program)
1693 {
1694         if (program.program() > 0) {
1695                 MIDI::Name::PatchPrimaryKey key;
1696                 get_patch_key_at(program.event_time(), program.channel(), key);
1697                 PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1698
1699                 key.program_number--;
1700                 alter_program_change(program_change_event, key);
1701         }
1702 }
1703
1704 void
1705 MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
1706 {
1707         if (_selection.empty()) {
1708                 return;
1709         }
1710
1711         if (_selection.erase (cne) > 0) {
1712                 cerr << "Erased a CNE from selection\n";
1713         }
1714 }
1715
1716 void
1717 MidiRegionView::delete_selection()
1718 {
1719         if (_selection.empty()) {
1720                 return;
1721         }
1722
1723         start_note_diff_command (_("delete selection"));
1724
1725         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1726                 if ((*i)->selected()) {
1727                         _note_diff_command->remove((*i)->note());
1728                 }
1729         }
1730
1731         _selection.clear();
1732
1733         apply_diff ();
1734 }
1735
1736 void
1737 MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
1738 {
1739         start_note_diff_command (_("delete note"));
1740         _note_diff_command->remove (n);
1741         apply_diff ();
1742
1743         trackview.editor().hide_verbose_canvas_cursor ();
1744 }
1745
1746 void
1747 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1748 {
1749         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1750                 if ((*i)->selected() && (*i) != ev) {
1751                         (*i)->set_selected(false);
1752                         (*i)->hide_velocity();
1753                 }
1754         }
1755
1756         _selection.clear();
1757 }
1758
1759 void
1760 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1761 {
1762         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1763                 if ((*i) != ev) {
1764
1765                         Selection::iterator tmp = i;
1766                         ++tmp;
1767
1768                         (*i)->set_selected (false);
1769                         _selection.erase (i);
1770
1771                         i = tmp;
1772
1773                 } else {
1774                         ++i;
1775                 }
1776         }
1777
1778         /* don't bother with removing this regionview from the editor selection,
1779            since we're about to add another note, and thus put/keep this
1780            regionview in the editor selection.
1781         */
1782
1783         if (!ev->selected()) {
1784                 add_to_selection (ev);
1785         }
1786 }
1787
1788 void
1789 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
1790 {
1791         uint8_t low_note = 127;
1792         uint8_t high_note = 0;
1793         MidiModel::Notes& notes (_model->notes());
1794         _optimization_iterator = _events.begin();
1795
1796         if (!add) {
1797                 clear_selection ();
1798         }
1799
1800         if (extend && _selection.empty()) {
1801                 extend = false;
1802         }
1803
1804         if (extend) {
1805
1806                 /* scan existing selection to get note range */
1807
1808                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1809                         if ((*i)->note()->note() < low_note) {
1810                                 low_note = (*i)->note()->note();
1811                         }
1812                         if ((*i)->note()->note() > high_note) {
1813                                 high_note = (*i)->note()->note();
1814                         }
1815                 }
1816
1817                 low_note = min (low_note, notenum);
1818                 high_note = max (high_note, notenum);
1819         }
1820
1821         no_sound_notes = true;
1822
1823         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1824
1825                 boost::shared_ptr<NoteType> note (*n);
1826                 CanvasNoteEvent* cne;
1827                 bool select = false;
1828
1829                 if (((1 << note->channel()) & channel_mask) != 0) {
1830                         if (extend) {
1831                                 if ((note->note() >= low_note && note->note() <= high_note)) {
1832                                         select = true;
1833                                 }
1834                         } else if (note->note() == notenum) {
1835                                 select = true;
1836                         }
1837                 }
1838
1839                 if (select) {
1840                         if ((cne = find_canvas_note (note)) != 0) {
1841                                 // extend is false because we've taken care of it,
1842                                 // since it extends by time range, not pitch.
1843                                 note_selected (cne, add, false);
1844                         }
1845                 }
1846
1847                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
1848
1849         }
1850
1851         no_sound_notes = false;
1852 }
1853
1854 void
1855 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
1856 {
1857         MidiModel::Notes& notes (_model->notes());
1858         _optimization_iterator = _events.begin();
1859
1860         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1861
1862                 boost::shared_ptr<NoteType> note (*n);
1863                 CanvasNoteEvent* cne;
1864
1865                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
1866                         if ((cne = find_canvas_note (note)) != 0) {
1867                                 if (cne->selected()) {
1868                                         note_deselected (cne);
1869                                 } else {
1870                                         note_selected (cne, true, false);
1871                                 }
1872                         }
1873                 }
1874         }
1875 }
1876
1877 void
1878 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1879 {
1880         if (!add) {
1881                 clear_selection_except(ev);
1882         }
1883
1884         if (!extend) {
1885
1886                 if (!ev->selected()) {
1887                         add_to_selection (ev);
1888                 }
1889
1890         } else {
1891                 /* find end of latest note selected, select all between that and the start of "ev" */
1892
1893                 Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
1894                 Evoral::MusicalTime latest = 0;
1895
1896                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1897                         if ((*i)->note()->end_time() > latest) {
1898                                 latest = (*i)->note()->end_time();
1899                         }
1900                         if ((*i)->note()->time() < earliest) {
1901                                 earliest = (*i)->note()->time();
1902                         }
1903                 }
1904
1905                 if (ev->note()->end_time() > latest) {
1906                         latest = ev->note()->end_time();
1907                 }
1908
1909                 if (ev->note()->time() < earliest) {
1910                         earliest = ev->note()->time();
1911                 }
1912
1913                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1914
1915                         /* find notes entirely within OR spanning the earliest..latest range */
1916
1917                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1918                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1919                                 add_to_selection (*i);
1920                         }
1921
1922 #if 0
1923                         /* if events were guaranteed to be time sorted, we could do this.
1924                            but as of sept 10th 2009, they no longer are.
1925                         */
1926
1927                         if ((*i)->note()->time() > latest) {
1928                                 break;
1929                         }
1930 #endif
1931                 }
1932         }
1933 }
1934
1935 void
1936 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
1937 {
1938         remove_from_selection (ev);
1939 }
1940
1941 void
1942 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1943 {
1944         if (x1 > x2) {
1945                 swap (x1, x2);
1946         }
1947
1948         if (y1 > y2) {
1949                 swap (y1, y2);
1950         }
1951
1952         // TODO: Make this faster by storing the last updated selection rect, and only
1953         // adjusting things that are in the area that appears/disappeared.
1954         // We probably need a tree to be able to find events in O(log(n)) time.
1955
1956         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1957
1958                 /* check if any corner of the note is inside the rect
1959
1960                    Notes:
1961                      1) this is computing "touched by", not "contained by" the rect.
1962                      2) this does not require that events be sorted in time.
1963                  */
1964
1965                 const double ix1 = (*i)->x1();
1966                 const double ix2 = (*i)->x2();
1967                 const double iy1 = (*i)->y1();
1968                 const double iy2 = (*i)->y2();
1969
1970                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1971                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
1972                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
1973                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
1974
1975                         // Inside rectangle
1976                         if (!(*i)->selected()) {
1977                                 add_to_selection (*i);
1978                         }
1979                 } else if ((*i)->selected()) {
1980                         // Not inside rectangle
1981                         remove_from_selection (*i);
1982                 }
1983         }
1984 }
1985
1986 void
1987 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1988 {
1989         Selection::iterator i = _selection.find (ev);
1990
1991         if (i != _selection.end()) {
1992                 _selection.erase (i);
1993         }
1994
1995         ev->set_selected (false);
1996         ev->hide_velocity ();
1997
1998         if (_selection.empty()) {
1999                 PublicEditor& editor (trackview.editor());
2000                 editor.get_selection().remove (this);
2001         }
2002 }
2003
2004 void
2005 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
2006 {
2007         bool add_mrv_selection = false;
2008
2009         if (_selection.empty()) {
2010                 add_mrv_selection = true;
2011         }
2012
2013         if (_selection.insert (ev).second) {
2014                 ev->set_selected (true);
2015                 play_midi_note ((ev)->note());
2016         }
2017
2018         if (add_mrv_selection) {
2019                 PublicEditor& editor (trackview.editor());
2020                 editor.get_selection().add (this);
2021         }
2022 }
2023
2024 void
2025 MidiRegionView::move_selection(double dx, double dy, double cumulative_dy)
2026 {
2027         typedef vector<boost::shared_ptr<NoteType> > PossibleChord;
2028         PossibleChord to_play;
2029         Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
2030
2031         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2032                 if ((*i)->note()->time() < earliest) {
2033                         earliest = (*i)->note()->time();
2034                 }
2035         }
2036
2037         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2038                 if (Evoral::musical_time_equal ((*i)->note()->time(), earliest)) {
2039                         to_play.push_back ((*i)->note());
2040                 }
2041                 (*i)->move_event(dx, dy);
2042         }
2043
2044         if (dy && !_selection.empty() && !no_sound_notes && trackview.editor().sound_notes()) {
2045
2046                 if (to_play.size() > 1) {
2047
2048                         PossibleChord shifted;
2049
2050                         for (PossibleChord::iterator n = to_play.begin(); n != to_play.end(); ++n) {
2051                                 boost::shared_ptr<NoteType> moved_note (new NoteType (**n));
2052                                 moved_note->set_note (moved_note->note() + cumulative_dy);
2053                                 shifted.push_back (moved_note);
2054                         }
2055
2056                         play_midi_chord (shifted);
2057
2058                 } else if (!to_play.empty()) {
2059
2060                         boost::shared_ptr<NoteType> moved_note (new NoteType (*to_play.front()));
2061                         moved_note->set_note (moved_note->note() + cumulative_dy);
2062                         play_midi_note (moved_note);
2063                 }
2064         }
2065 }
2066
2067 void
2068 MidiRegionView::note_dropped(CanvasNoteEvent *, frameoffset_t dt, int8_t dnote)
2069 {
2070         assert (!_selection.empty());
2071
2072         uint8_t lowest_note_in_selection  = 127;
2073         uint8_t highest_note_in_selection = 0;
2074         uint8_t highest_note_difference = 0;
2075
2076         // find highest and lowest notes first
2077
2078         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2079                 uint8_t pitch = (*i)->note()->note();
2080                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
2081                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
2082         }
2083
2084         /*
2085         cerr << "dnote: " << (int) dnote << endl;
2086         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
2087              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
2088         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
2089              << int(highest_note_in_selection) << endl;
2090         cerr << "selection size: " << _selection.size() << endl;
2091         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
2092         */
2093
2094         // Make sure the note pitch does not exceed the MIDI standard range
2095         if (highest_note_in_selection + dnote > 127) {
2096                 highest_note_difference = highest_note_in_selection - 127;
2097         }
2098
2099         start_note_diff_command (_("move notes"));
2100
2101         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
2102
2103                 Evoral::MusicalTime new_time = frames_to_beats (beats_to_frames ((*i)->note()->time()) + dt);
2104
2105                 if (new_time < 0) {
2106                         continue;
2107                 }
2108
2109                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::StartTime, new_time);
2110
2111                 uint8_t original_pitch = (*i)->note()->note();
2112                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
2113
2114                 // keep notes in standard midi range
2115                 clamp_to_0_127(new_pitch);
2116
2117                 // keep original pitch if note is dragged outside valid midi range
2118                 if ((original_pitch != 0 && new_pitch == 0)
2119                                 || (original_pitch != 127 && new_pitch == 127)) {
2120                         new_pitch = original_pitch;
2121                 }
2122
2123                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
2124                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
2125
2126                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::NoteNumber, new_pitch);
2127         }
2128
2129         apply_diff();
2130
2131         // care about notes being moved beyond the upper/lower bounds on the canvas
2132         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
2133             highest_note_in_selection > midi_stream_view()->highest_note()) {
2134                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
2135         }
2136 }
2137
2138 framepos_t
2139 MidiRegionView::snap_pixel_to_frame(double x)
2140 {
2141         PublicEditor& editor = trackview.editor();
2142         // x is region relative, convert it to global absolute frames
2143         framepos_t frame = editor.pixel_to_frame(x) + _region->position();
2144         editor.snap_to(frame);
2145         return frame - _region->position(); // convert back to region relative
2146 }
2147
2148 framepos_t
2149 MidiRegionView::snap_frame_to_frame(framepos_t x)
2150 {
2151         PublicEditor& editor = trackview.editor();
2152         // x is region relative, convert it to global absolute frames
2153         framepos_t frame = x + _region->position();
2154         editor.snap_to(frame);
2155         return frame - _region->position(); // convert back to region relative
2156 }
2157
2158 double
2159 MidiRegionView::snap_to_pixel(double x)
2160 {
2161         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
2162 }
2163
2164 double
2165 MidiRegionView::get_position_pixels()
2166 {
2167         framepos_t region_frame = get_position();
2168         return trackview.editor().frame_to_pixel(region_frame);
2169 }
2170
2171 double
2172 MidiRegionView::get_end_position_pixels()
2173 {
2174         framepos_t frame = get_position() + get_duration ();
2175         return trackview.editor().frame_to_pixel(frame);
2176 }
2177
2178 framepos_t
2179 MidiRegionView::beats_to_frames(double beats) const
2180 {
2181         return _time_converter.to(beats);
2182 }
2183
2184 double
2185 MidiRegionView::frames_to_beats(framepos_t frames) const
2186 {
2187         return _time_converter.from(frames);
2188 }
2189
2190 void
2191 MidiRegionView::begin_resizing (bool /*at_front*/)
2192 {
2193         _resize_data.clear();
2194
2195         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2196                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
2197
2198                 // only insert CanvasNotes into the map
2199                 if (note) {
2200                         NoteResizeData *resize_data = new NoteResizeData();
2201                         resize_data->canvas_note = note;
2202
2203                         // create a new SimpleRect from the note which will be the resize preview
2204                         SimpleRect *resize_rect = new SimpleRect(
2205                                         *_note_group, note->x1(), note->y1(), note->x2(), note->y2());
2206
2207                         // calculate the colors: get the color settings
2208                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
2209                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
2210                                         128);
2211
2212                         // make the resize preview notes more transparent and bright
2213                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
2214
2215                         // calculate color based on note velocity
2216                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
2217                                 CanvasNoteEvent::meter_style_fill_color(note->note()->velocity(), note->selected()),
2218                                         fill_color,
2219                                         0.85);
2220
2221                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
2222                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
2223
2224                         resize_data->resize_rect = resize_rect;
2225                         _resize_data.push_back(resize_data);
2226                 }
2227         }
2228 }
2229
2230 /** Update resizing notes while user drags.
2231  * @param primary `primary' note for the drag; ie the one that is used as the reference in non-relative mode.
2232  * @param at_front which end of the note (true == note on, false == note off)
2233  * @param delta_x change in mouse position since the start of the drag
2234  * @param relative true if relative resizing is taking place, false if absolute resizing.  This only makes
2235  * a difference when multiple notes are being resized; in relative mode, each note's length is changed by the
2236  * amount of the drag.  In non-relative mode, all selected notes are set to have the same start or end point
2237  * as the \a primary note.
2238  */
2239 void
2240 MidiRegionView::update_resizing (ArdourCanvas::CanvasNote* primary, bool at_front, double delta_x, bool relative)
2241 {
2242         bool cursor_set = false;
2243
2244         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2245                 SimpleRect* resize_rect = (*i)->resize_rect;
2246                 CanvasNote* canvas_note = (*i)->canvas_note;
2247                 double current_x;
2248
2249                 if (at_front) {
2250                         if (relative) {
2251                                 current_x = canvas_note->x1() + delta_x;
2252                         } else {
2253                                 current_x = primary->x1() + delta_x;
2254                         }
2255                 } else {
2256                         if (relative) {
2257                                 current_x = canvas_note->x2() + delta_x;
2258                         } else {
2259                                 current_x = primary->x2() + delta_x;
2260                         }
2261                 }
2262
2263                 if (at_front) {
2264                         resize_rect->property_x1() = snap_to_pixel(current_x);
2265                         resize_rect->property_x2() = canvas_note->x2();
2266                 } else {
2267                         resize_rect->property_x2() = snap_to_pixel(current_x);
2268                         resize_rect->property_x1() = canvas_note->x1();
2269                 }
2270
2271                 if (!cursor_set) {
2272                         double beats;
2273
2274                         beats = snap_pixel_to_frame (current_x);
2275                         beats = frames_to_beats (beats);
2276
2277                         double len;
2278
2279                         if (at_front) {
2280                                 if (beats < canvas_note->note()->end_time()) {
2281                                         len = canvas_note->note()->time() - beats;
2282                                         len += canvas_note->note()->length();
2283                                 } else {
2284                                         len = 0;
2285                                 }
2286                         } else {
2287                                 if (beats >= canvas_note->note()->time()) {
2288                                         len = beats - canvas_note->note()->time();
2289                                 } else {
2290                                         len = 0;
2291                                 }
2292                         }
2293
2294                         char buf[16];
2295                         snprintf (buf, sizeof (buf), "%.3g beats", len);
2296                         trackview.editor().show_verbose_canvas_cursor_with (buf);
2297
2298                         cursor_set = true;
2299                 }
2300
2301         }
2302 }
2303
2304
2305 /** Finish resizing notes when the user releases the mouse button.
2306  *  Parameters the same as for \a update_resizing().
2307  */
2308 void
2309 MidiRegionView::commit_resizing (ArdourCanvas::CanvasNote* primary, bool at_front, double delta_x, bool relative)
2310 {
2311         start_note_diff_command (_("resize notes"));
2312
2313         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2314                 CanvasNote*  canvas_note = (*i)->canvas_note;
2315                 SimpleRect*  resize_rect = (*i)->resize_rect;
2316                 double current_x;
2317
2318                 if (at_front) {
2319                         if (relative) {
2320                                 current_x = canvas_note->x1() + delta_x;
2321                         } else {
2322                                 current_x = primary->x1() + delta_x;
2323                         }
2324                 } else {
2325                         if (relative) {
2326                                 current_x = canvas_note->x2() + delta_x;
2327                         } else {
2328                                 current_x = primary->x2() + delta_x;
2329                         }
2330                 }
2331
2332                 current_x = snap_pixel_to_frame (current_x);
2333                 current_x = frames_to_beats (current_x);
2334
2335                 if (at_front && current_x < canvas_note->note()->end_time()) {
2336                         note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::StartTime, current_x);
2337
2338                         double len = canvas_note->note()->time() - current_x;
2339                         len += canvas_note->note()->length();
2340
2341                         if (len > 0) {
2342                                 /* XXX convert to beats */
2343                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2344                         }
2345                 }
2346
2347                 if (!at_front) {
2348                         double len = current_x - canvas_note->note()->time();
2349
2350                         if (len > 0) {
2351                                 /* XXX convert to beats */
2352                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2353                         }
2354                 }
2355
2356                 delete resize_rect;
2357                 delete (*i);
2358         }
2359
2360         _resize_data.clear();
2361         apply_diff();
2362 }
2363
2364 void
2365 MidiRegionView::change_note_channel (CanvasNoteEvent* event, int8_t channel)
2366 {
2367         note_diff_add_change (event, MidiModel::NoteDiffCommand::Channel, (uint8_t) channel);
2368 }
2369
2370 void
2371 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
2372 {
2373         uint8_t new_velocity;
2374
2375         if (relative) {
2376                 new_velocity = event->note()->velocity() + velocity;
2377                 clamp_to_0_127(new_velocity);
2378         } else {
2379                 new_velocity = velocity;
2380         }
2381
2382         event->set_selected (event->selected()); // change color
2383
2384         note_diff_add_change (event, MidiModel::NoteDiffCommand::Velocity, new_velocity);
2385 }
2386
2387 void
2388 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
2389 {
2390         uint8_t new_note;
2391
2392         if (relative) {
2393                 new_note = event->note()->note() + note;
2394         } else {
2395                 new_note = note;
2396         }
2397
2398         clamp_to_0_127 (new_note);
2399         note_diff_add_change (event, MidiModel::NoteDiffCommand::NoteNumber, new_note);
2400 }
2401
2402 void
2403 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
2404 {
2405         bool change_start = false;
2406         bool change_length = false;
2407         Evoral::MusicalTime new_start = 0;
2408         Evoral::MusicalTime new_length = 0;
2409
2410         /* NOTE: the semantics of the two delta arguments are slightly subtle:
2411
2412            front_delta: if positive - move the start of the note later in time (shortening it)
2413                         if negative - move the start of the note earlier in time (lengthening it)
2414
2415            end_delta:   if positive - move the end of the note later in time (lengthening it)
2416                         if negative - move the end of the note earlier in time (shortening it)
2417          */
2418
2419         if (front_delta) {
2420                 if (front_delta < 0) {
2421
2422                         if (event->note()->time() < -front_delta) {
2423                                 new_start = 0;
2424                         } else {
2425                                 new_start = event->note()->time() + front_delta; // moves earlier
2426                         }
2427
2428                         /* start moved toward zero, so move the end point out to where it used to be.
2429                            Note that front_delta is negative, so this increases the length.
2430                         */
2431
2432                         new_length = event->note()->length() - front_delta;
2433                         change_start = true;
2434                         change_length = true;
2435
2436                 } else {
2437
2438                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2439
2440                         if (new_pos < event->note()->end_time()) {
2441                                 new_start = event->note()->time() + front_delta;
2442                                 /* start moved toward the end, so move the end point back to where it used to be */
2443                                 new_length = event->note()->length() - front_delta;
2444                                 change_start = true;
2445                                 change_length = true;
2446                         }
2447                 }
2448
2449         }
2450
2451         if (end_delta) {
2452                 bool can_change = true;
2453                 if (end_delta < 0) {
2454                         if (event->note()->length() < -end_delta) {
2455                                 can_change = false;
2456                         }
2457                 }
2458
2459                 if (can_change) {
2460                         new_length = event->note()->length() + end_delta;
2461                         change_length = true;
2462                 }
2463         }
2464
2465         if (change_start) {
2466                 note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_start);
2467         }
2468
2469         if (change_length) {
2470                 note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, new_length);
2471         }
2472 }
2473
2474 void
2475 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2476 {
2477         Evoral::MusicalTime new_time;
2478
2479         if (relative) {
2480                 if (delta < 0.0) {
2481                         if (event->note()->time() < -delta) {
2482                                 new_time = 0;
2483                         } else {
2484                                 new_time = event->note()->time() + delta;
2485                         }
2486                 } else {
2487                         new_time = event->note()->time() + delta;
2488                 }
2489         } else {
2490                 new_time = delta;
2491         }
2492
2493         note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_time);
2494 }
2495
2496 void
2497 MidiRegionView::change_note_length (CanvasNoteEvent* event, Evoral::MusicalTime t)
2498 {
2499         note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, t);
2500 }
2501
2502 void
2503 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2504 {
2505         int8_t delta;
2506
2507         if (_selection.empty()) {
2508                 return;
2509         }
2510
2511         if (fine) {
2512                 delta = 1;
2513         } else {
2514                 delta = 10;
2515         }
2516
2517         if (!up) {
2518                 delta = -delta;
2519         }
2520
2521         if (!allow_smush) {
2522                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2523                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2524                                 return;
2525                         }
2526                 }
2527         }
2528
2529         start_note_diff_command (_("change velocities"));
2530
2531         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2532                 Selection::iterator next = i;
2533                 ++next;
2534                 change_note_velocity (*i, delta, true);
2535                 i = next;
2536         }
2537
2538         apply_diff();
2539
2540         if (!_selection.empty()) {
2541                 char buf[24];
2542                 snprintf (buf, sizeof (buf), "Vel %d",
2543                           (int) (*_selection.begin())->note()->velocity());
2544                 trackview.editor().show_verbose_canvas_cursor_with (buf, 10, 10);
2545         }
2546 }
2547
2548
2549 void
2550 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2551 {
2552         if (_selection.empty()) {
2553                 return;
2554         }
2555
2556         int8_t delta;
2557
2558         if (fine) {
2559                 delta = 1;
2560         } else {
2561                 delta = 12;
2562         }
2563
2564         if (!up) {
2565                 delta = -delta;
2566         }
2567
2568         if (!allow_smush) {
2569                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2570                         if (!up) {
2571                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2572                                         return;
2573                                 }
2574                         } else {
2575                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2576                                         return;
2577                                 }
2578                         }
2579                 }
2580         }
2581
2582         start_note_diff_command (_("transpose"));
2583
2584         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2585                 Selection::iterator next = i;
2586                 ++next;
2587                 change_note_note (*i, delta, true);
2588                 i = next;
2589         }
2590
2591         apply_diff ();
2592 }
2593
2594 void
2595 MidiRegionView::change_note_lengths (bool fine, bool shorter, Evoral::MusicalTime delta, bool start, bool end)
2596 {
2597         if (delta == 0.0) {
2598                 if (fine) {
2599                         delta = 1.0/128.0;
2600                 } else {
2601                         /* grab the current grid distance */
2602                         bool success;
2603                         delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2604                         if (!success) {
2605                                 /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2606                                 cerr << "Grid type not available as beats - TO BE FIXED\n";
2607                                 return;
2608                         }
2609                 }
2610         }
2611
2612         if (shorter) {
2613                 delta = -delta;
2614         }
2615
2616         start_note_diff_command (_("change note lengths"));
2617
2618         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2619                 Selection::iterator next = i;
2620                 ++next;
2621
2622                 /* note the negation of the delta for start */
2623
2624                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2625                 i = next;
2626         }
2627
2628         apply_diff ();
2629
2630 }
2631
2632 void
2633 MidiRegionView::nudge_notes (bool forward)
2634 {
2635         if (_selection.empty()) {
2636                 return;
2637         }
2638
2639         /* pick a note as the point along the timeline to get the nudge distance.
2640            its not necessarily the earliest note, so we may want to pull the notes out
2641            into a vector and sort before using the first one.
2642         */
2643
2644         framepos_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2645         framepos_t unused;
2646         framepos_t distance;
2647
2648         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2649
2650                 /* grid is off - use nudge distance */
2651
2652                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2653
2654         } else {
2655
2656                 /* use grid */
2657
2658                 framepos_t next_pos = ref_point;
2659
2660                 if (forward) {
2661                         if (max_framepos - 1 < next_pos) {
2662                                 next_pos += 1;
2663                         }
2664                 } else {
2665                         if (next_pos == 0) {
2666                                 return;
2667                         }
2668                         next_pos -= 1;
2669                 }
2670
2671                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2672                 distance = ref_point - next_pos;
2673         }
2674
2675         if (distance == 0) {
2676                 return;
2677         }
2678
2679         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2680
2681         if (!forward) {
2682                 delta = -delta;
2683         }
2684
2685         start_note_diff_command (_("nudge"));
2686
2687         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2688                 Selection::iterator next = i;
2689                 ++next;
2690                 change_note_time (*i, delta, true);
2691                 i = next;
2692         }
2693
2694         apply_diff ();
2695 }
2696
2697 void
2698 MidiRegionView::change_channel(uint8_t channel)
2699 {
2700         start_note_diff_command(_("change channel"));
2701         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2702                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::Channel, channel);
2703         }
2704
2705         apply_diff();
2706 }
2707
2708
2709 void
2710 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2711 {
2712         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2713
2714         pre_enter_cursor = editor->get_canvas_cursor ();
2715
2716         if (_mouse_state == SelectTouchDragging) {
2717                 note_selected (ev, true);
2718         }
2719
2720         show_verbose_canvas_cursor (ev->note ());
2721 }
2722
2723 void
2724 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2725 {
2726         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2727
2728         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2729                 (*i)->hide_velocity ();
2730         }
2731
2732         editor->hide_verbose_canvas_cursor ();
2733
2734         if (pre_enter_cursor) {
2735                 editor->set_canvas_cursor (pre_enter_cursor);
2736                 pre_enter_cursor = 0;
2737         }
2738 }
2739
2740 void
2741 MidiRegionView::note_mouse_position (float x_fraction, float /*y_fraction*/, bool can_set_cursor)
2742 {
2743         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2744
2745         if (x_fraction > 0.0 && x_fraction < 0.25) {
2746                 editor->set_canvas_cursor (editor->cursors()->left_side_trim);
2747         } else if (x_fraction >= 0.75 && x_fraction < 1.0) {
2748                 editor->set_canvas_cursor (editor->cursors()->right_side_trim);
2749         } else {
2750                 if (pre_enter_cursor && can_set_cursor) {
2751                         editor->set_canvas_cursor (pre_enter_cursor);
2752                 }
2753         }
2754 }
2755
2756 void
2757 MidiRegionView::set_frame_color()
2758 {
2759         if (frame) {
2760                 if (_selected && should_show_selection) {
2761                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2762                 } else {
2763                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2764                 }
2765         }
2766 }
2767
2768 void
2769 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2770 {
2771         switch (mode) {
2772         case AllChannels:
2773         case FilterChannels:
2774                 _force_channel = -1;
2775                 break;
2776         case ForceChannel:
2777                 _force_channel = mask;
2778                 mask = 0xFFFF; // Show all notes as active (below)
2779         };
2780
2781         // Update notes for selection
2782         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2783                 (*i)->on_channel_selection_change(mask);
2784         }
2785
2786         _last_channel_selection = mask;
2787 }
2788
2789 void
2790 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2791 {
2792         _model_name         = model;
2793         _custom_device_mode = custom_device_mode;
2794         redisplay_model();
2795 }
2796
2797 void
2798 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2799 {
2800         if (_selection.empty()) {
2801                 return;
2802         }
2803
2804         PublicEditor& editor (trackview.editor());
2805
2806         switch (op) {
2807         case Cut:
2808         case Copy:
2809                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2810                 break;
2811         default:
2812                 break;
2813         }
2814
2815         if (op != Copy) {
2816
2817                 start_note_diff_command();
2818
2819                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2820                         switch (op) {
2821                         case Copy:
2822                                 break;
2823                         case Cut:
2824                         case Clear:
2825                                 note_diff_remove_note (*i);
2826                                 break;
2827                         }
2828                 }
2829
2830                 apply_diff();
2831         }
2832 }
2833
2834 MidiCutBuffer*
2835 MidiRegionView::selection_as_cut_buffer () const
2836 {
2837         Notes notes;
2838
2839         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2840                 NoteType* n = (*i)->note().get();
2841                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
2842         }
2843
2844         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2845         cb->set (notes);
2846
2847         return cb;
2848 }
2849
2850 void
2851 MidiRegionView::paste (framepos_t pos, float times, const MidiCutBuffer& mcb)
2852 {
2853         if (mcb.empty()) {
2854                 return;
2855         }
2856
2857         start_note_diff_command (_("paste"));
2858
2859         Evoral::MusicalTime beat_delta;
2860         Evoral::MusicalTime paste_pos_beats;
2861         Evoral::MusicalTime duration;
2862         Evoral::MusicalTime end_point = 0;
2863
2864         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2865         paste_pos_beats = frames_to_beats (pos - _region->position());
2866         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2867         paste_pos_beats = 0;
2868
2869         clear_selection ();
2870
2871         for (int n = 0; n < (int) times; ++n) {
2872
2873                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2874
2875                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2876                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2877
2878                         /* make all newly added notes selected */
2879
2880                         note_diff_add_note (copied_note, true);
2881                         end_point = copied_note->end_time();
2882                 }
2883
2884                 paste_pos_beats += duration;
2885         }
2886
2887         /* if we pasted past the current end of the region, extend the region */
2888
2889         framepos_t end_frame = _region->position() + beats_to_frames (end_point);
2890         framepos_t region_end = _region->position() + _region->length() - 1;
2891
2892         if (end_frame > region_end) {
2893
2894                 trackview.session()->begin_reversible_command (_("paste"));
2895
2896                 _region->clear_changes ();
2897                 _region->set_length (end_frame, this);
2898                 trackview.session()->add_command (new StatefulDiffCommand (_region));
2899         }
2900
2901         apply_diff ();
2902 }
2903
2904 struct EventNoteTimeEarlyFirstComparator {
2905     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
2906             return a->note()->time() < b->note()->time();
2907     }
2908 };
2909
2910 void
2911 MidiRegionView::time_sort_events ()
2912 {
2913         if (!_sort_needed) {
2914                 return;
2915         }
2916
2917         EventNoteTimeEarlyFirstComparator cmp;
2918         _events.sort (cmp);
2919
2920         _sort_needed = false;
2921 }
2922
2923 void
2924 MidiRegionView::goto_next_note ()
2925 {
2926         // framepos_t pos = -1;
2927         bool use_next = false;
2928
2929         if (_events.back()->selected()) {
2930                 return;
2931         }
2932
2933         time_sort_events ();
2934
2935         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2936                 if ((*i)->selected()) {
2937                         use_next = true;
2938                         continue;
2939                 } else if (use_next) {
2940                         unique_select (*i);
2941                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2942                         return;
2943                 }
2944         }
2945
2946         /* use the first one */
2947
2948         unique_select (_events.front());
2949
2950 }
2951
2952 void
2953 MidiRegionView::goto_previous_note ()
2954 {
2955         // framepos_t pos = -1;
2956         bool use_next = false;
2957
2958         if (_events.front()->selected()) {
2959                 return;
2960         }
2961
2962         time_sort_events ();
2963
2964         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2965                 if ((*i)->selected()) {
2966                         use_next = true;
2967                         continue;
2968                 } else if (use_next) {
2969                         unique_select (*i);
2970                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2971                         return;
2972                 }
2973         }
2974
2975         /* use the last one */
2976
2977         unique_select (*(_events.rbegin()));
2978 }
2979
2980 void
2981 MidiRegionView::selection_as_notelist (Notes& selected, bool allow_all_if_none_selected)
2982 {
2983         bool had_selected = false;
2984
2985         time_sort_events ();
2986
2987         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2988                 if ((*i)->selected()) {
2989                         selected.insert ((*i)->note());
2990                         had_selected = true;
2991                 }
2992         }
2993
2994         if (allow_all_if_none_selected && !had_selected) {
2995                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2996                         selected.insert ((*i)->note());
2997                 }
2998         }
2999 }
3000
3001 void
3002 MidiRegionView::update_ghost_note (double x, double y)
3003 {
3004         _last_ghost_x = x;
3005         _last_ghost_y = y;
3006
3007         _note_group->w2i (x, y);
3008         framepos_t f = trackview.editor().pixel_to_frame (x) + _region->position ();
3009         trackview.editor().snap_to (f);
3010         f -= _region->position ();
3011
3012         bool success;
3013         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, f);
3014         if (!success) {
3015                 beats = 1;
3016         }
3017
3018         double length = frames_to_beats (snap_frame_to_frame (f + beats_to_frames (beats)) - f);
3019
3020         _ghost_note->note()->set_time (frames_to_beats (f + _region->start()));
3021         _ghost_note->note()->set_length (length);
3022         _ghost_note->note()->set_note (midi_stream_view()->y_to_note (y));
3023
3024         update_note (_ghost_note);
3025
3026         show_verbose_canvas_cursor (_ghost_note->note ());
3027 }
3028
3029 void
3030 MidiRegionView::create_ghost_note (double x, double y)
3031 {
3032         delete _ghost_note;
3033         _ghost_note = 0;
3034
3035         boost::shared_ptr<NoteType> g (new NoteType);
3036         _ghost_note = new NoEventCanvasNote (*this, *_note_group, g);
3037         update_ghost_note (x, y);
3038         _ghost_note->show ();
3039
3040         _last_ghost_x = x;
3041         _last_ghost_y = y;
3042
3043         show_verbose_canvas_cursor (_ghost_note->note ());
3044 }
3045
3046 void
3047 MidiRegionView::snap_changed ()
3048 {
3049         if (!_ghost_note) {
3050                 return;
3051         }
3052
3053         create_ghost_note (_last_ghost_x, _last_ghost_y);
3054 }
3055
3056 void
3057 MidiRegionView::show_verbose_canvas_cursor (boost::shared_ptr<NoteType> n) const
3058 {
3059         char buf[24];
3060         snprintf (buf, sizeof (buf), "%s (%d)\nVel %d",
3061                   Evoral::midi_note_name (n->note()).c_str(),
3062                   (int) n->note (),
3063                   (int) n->velocity());
3064         trackview.editor().show_verbose_canvas_cursor_with (buf, 10, 20);
3065 }
3066
3067 void
3068 MidiRegionView::drop_down_keys ()
3069 {
3070         _mouse_state = None;
3071 }
3072
3073 void
3074 MidiRegionView::maybe_select_by_position (GdkEventButton* ev, double /*x*/, double y)
3075 {
3076         double note = midi_stream_view()->y_to_note(y);
3077         Events e;
3078         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3079
3080         cerr << "Selecting by position\n";
3081
3082         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
3083
3084         if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
3085                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchGreaterThanOrEqual, (uint8_t) floor (note), chn_mask);
3086         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
3087                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchLessThanOrEqual, (uint8_t) floor (note), chn_mask);
3088         } else {
3089                 return;
3090         }
3091
3092         bool add_mrv_selection = false;
3093
3094         if (_selection.empty()) {
3095                 add_mrv_selection = true;
3096         }
3097
3098         for (Events::iterator i = e.begin(); i != e.end(); ++i) {
3099                 if (_selection.insert (*i).second) {
3100                         (*i)->set_selected (true);
3101                 }
3102         }
3103
3104         if (add_mrv_selection) {
3105                 PublicEditor& editor (trackview.editor());
3106                 editor.get_selection().add (this);
3107         }
3108 }
3109
3110 void
3111 MidiRegionView::color_handler ()
3112 {
3113         RegionView::color_handler ();
3114
3115         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3116                 (*i)->set_selected ((*i)->selected()); // will change color
3117         }
3118
3119         /* XXX probably more to do here */
3120 }
3121
3122 void
3123 MidiRegionView::enable_display (bool yn)
3124 {
3125         RegionView::enable_display (yn);
3126         if (yn) {
3127                 redisplay_model ();
3128         }
3129 }
3130
3131 void
3132 MidiRegionView::show_step_edit_cursor (Evoral::MusicalTime pos)
3133 {
3134         if (_step_edit_cursor == 0) {
3135                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
3136
3137                 _step_edit_cursor = new ArdourCanvas::SimpleRect (*group);
3138                 _step_edit_cursor->property_y1() = 0;
3139                 _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
3140                 _step_edit_cursor->property_fill_color_rgba() = RGBA_TO_UINT (45,0,0,90);
3141                 _step_edit_cursor->property_outline_color_rgba() = RGBA_TO_UINT (85,0,0,90);
3142         }
3143
3144         move_step_edit_cursor (pos);
3145         _step_edit_cursor->show ();
3146 }
3147
3148 void
3149 MidiRegionView::move_step_edit_cursor (Evoral::MusicalTime pos)
3150 {
3151         _step_edit_cursor_position = pos;
3152
3153         if (_step_edit_cursor) {
3154                 double pixel = trackview.editor().frame_to_pixel (beats_to_frames (pos));
3155                 _step_edit_cursor->property_x1() = pixel;
3156                 set_step_edit_cursor_width (_step_edit_cursor_width);
3157         }
3158 }
3159
3160 void
3161 MidiRegionView::hide_step_edit_cursor ()
3162 {
3163         if (_step_edit_cursor) {
3164                 _step_edit_cursor->hide ();
3165         }
3166 }
3167
3168 void
3169 MidiRegionView::set_step_edit_cursor_width (Evoral::MusicalTime beats)
3170 {
3171         _step_edit_cursor_width = beats;
3172
3173         if (_step_edit_cursor) {
3174                 _step_edit_cursor->property_x2() = _step_edit_cursor->property_x1() + trackview.editor().frame_to_pixel (beats_to_frames (beats));
3175         }
3176 }
3177
3178 /** Called when a diskstream on our track has received some data.  Update the view, if applicable.
3179  *  @param buf Data that has been recorded.
3180  *  @param w Source that this data will end up in.
3181  */
3182 void
3183 MidiRegionView::data_recorded (boost::shared_ptr<MidiBuffer> buf, boost::weak_ptr<MidiSource> w)
3184 {
3185         if (!_active_notes) {
3186                 /* we aren't actively being recorded to */
3187                 return;
3188         }
3189
3190         boost::shared_ptr<MidiSource> src = w.lock ();
3191         if (!src || src != midi_region()->midi_source()) {
3192                 /* recorded data was not destined for our source */
3193                 return;
3194         }
3195
3196         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (&trackview);
3197         BeatsFramesConverter converter (trackview.session()->tempo_map(), mtv->midi_track()->get_capture_start_frame (0));
3198
3199         framepos_t back = max_framepos;
3200
3201         for (MidiBuffer::iterator i = buf->begin(); i != buf->end(); ++i) {
3202                 Evoral::MIDIEvent<MidiBuffer::TimeType> const ev (*i, false);
3203                 assert (ev.buffer ());
3204
3205                 Evoral::MusicalTime const time_beats = converter.from (ev.time () - converter.origin_b ());
3206
3207                 if (ev.type() == MIDI_CMD_NOTE_ON) {
3208
3209                         boost::shared_ptr<Evoral::Note<Evoral::MusicalTime> > note (
3210                                 new Evoral::Note<Evoral::MusicalTime> (ev.channel(), time_beats, 0, ev.note(), ev.velocity())
3211                                 );
3212
3213                         add_note (note, true);
3214
3215                         /* fix up our note range */
3216                         if (ev.note() < _current_range_min) {
3217                                 midi_stream_view()->apply_note_range (ev.note(), _current_range_max, true);
3218                         } else if (ev.note() > _current_range_max) {
3219                                 midi_stream_view()->apply_note_range (_current_range_min, ev.note(), true);
3220                         }
3221
3222                 } else if (ev.type() == MIDI_CMD_NOTE_OFF) {
3223                         resolve_note (ev.note (), time_beats);
3224                 }
3225
3226                 back = ev.time ();
3227         }
3228
3229         midi_stream_view()->check_record_layers (region(), back);
3230 }
3231
3232 void
3233 MidiRegionView::trim_front_starting ()
3234 {
3235         /* Reparent the note group to the region view's parent, so that it doesn't change
3236            when the region view is trimmed.
3237         */
3238         _temporary_note_group = new ArdourCanvas::Group (*group->property_parent ());
3239         _temporary_note_group->move (group->property_x(), group->property_y());
3240         _note_group->reparent (*_temporary_note_group);
3241 }
3242
3243 void
3244 MidiRegionView::trim_front_ending ()
3245 {
3246         _note_group->reparent (*group);
3247         delete _temporary_note_group;
3248         _temporary_note_group = 0;
3249
3250         if (_region->start() < 0) {
3251                 /* Trim drag made start time -ve; fix this */
3252                 midi_region()->fix_negative_start ();
3253         }
3254 }