gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2011 Paul Davis
   3     Author: David Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <cmath>
  21 #include <algorithm>
  22 #include <ostream>
  23
  24 #include <gtkmm.h>
  25
  26 #include "gtkmm2ext/gtk_ui.h"
  27
  28 #include <sigc++/signal.h>
  29
  30 #include "pbd/memento_command.h"
  31 #include "pbd/stateful_diff_command.h"
  32
  33 #include "ardour/midi_model.h"
  34 #include "ardour/midi_patch_manager.h"
  35 #include "ardour/midi_region.h"
  36 #include "ardour/midi_source.h"
  37 #include "ardour/midi_track.h"
  38 #include "ardour/operations.h"
  39 #include "ardour/session.h"
  40
  41 #include "evoral/Parameter.hpp"
  42 #include "evoral/MIDIParameters.hpp"
  43 #include "evoral/MIDIEvent.hpp"
  44 #include "evoral/Control.hpp"
  45 #include "evoral/midi_util.h"
  46
  47 #include "canvas/debug.h"
  48 #include "canvas/text.h"
  49
  50 #include "automation_region_view.h"
  51 #include "automation_time_axis.h"
  52 #include "control_point.h"
  53 #include "debug.h"
  54 #include "editor.h"
  55 #include "editor_drag.h"
  56 #include "ghostregion.h"
  57 #include "gui_thread.h"
  58 #include "item_counts.h"
  59 #include "keyboard.h"
  60 #include "midi_channel_dialog.h"
  61 #include "midi_cut_buffer.h"
  62 #include "midi_list_editor.h"
  63 #include "midi_region_view.h"
  64 #include "midi_streamview.h"
  65 #include "midi_time_axis.h"
  66 #include "midi_util.h"
  67 #include "midi_velocity_dialog.h"
  68 #include "mouse_cursors.h"
  69 #include "note_player.h"
  70 #include "public_editor.h"
  71 #include "route_time_axis.h"
  72 #include "rgb_macros.h"
  73 #include "selection.h"
  74 #include "streamview.h"
  75 #include "patch_change_dialog.h"
  76 #include "verbose_cursor.h"
  77 #include "ardour_ui.h"
  78 #include "note.h"
  79 #include "hit.h"
  80 #include "patch_change.h"
  81 #include "sys_ex.h"
  82
  83 #include "i18n.h"
  84
  85 using namespace ARDOUR;
  86 using namespace PBD;
  87 using namespace Editing;
  88 using Gtkmm2ext::Keyboard;
  89
  90 PBD::Signal1<void, MidiRegionView *> MidiRegionView::SelectionCleared;
  91
  92 #define MIDI_BP_ZERO ((Config->get_first_midi_bank_is_zero())?0:1)
  93
  94 MidiRegionView::MidiRegionView (ArdourCanvas::Container*      parent,
  95                                 RouteTimeAxisView&            tv,
  96                                 boost::shared_ptr<MidiRegion> r,
  97                                 double                        spu,
  98                                 uint32_t                      basic_color)
  99         : RegionView (parent, tv, r, spu, basic_color)
 100         , _current_range_min(0)
 101         , _current_range_max(0)
 102         , _region_relative_time_converter(r->session().tempo_map(), r->position())
 103         , _source_relative_time_converter(r->session().tempo_map(), r->position() - r->start())
 104         , _active_notes(0)
 105         , _note_group (new ArdourCanvas::Container (group))
 106         , _note_diff_command (0)
 107         , _ghost_note(0)
 108         , _step_edit_cursor (0)
 109         , _step_edit_cursor_width (1.0)
 110         , _step_edit_cursor_position (0.0)
 111         , _channel_selection_scoped_note (0)
 112         , _temporary_note_group (0)
 113         , _mouse_state(None)
 114         , _pressed_button(0)
 115         , _sort_needed (true)
 116         , _optimization_iterator (_events.end())
 117         , _list_editor (0)
 118         , _no_sound_notes (false)
 119         , _last_event_x (0)
 120         , _last_event_y (0)
 121         , pre_enter_cursor (0)
 122         , pre_press_cursor (0)
 123         , pre_note_enter_cursor (0)
 124         , _note_player (0)
 125 {
 126         CANVAS_DEBUG_NAME (_note_group, string_compose ("note group for %1", get_item_name()));
 127         _note_group->raise_to_top();
 128         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 129
 130         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
 131         connect_to_diskstream ();
 132
 133         SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), boost::bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
 134 }
 135
 136 MidiRegionView::MidiRegionView (ArdourCanvas::Container*      parent,
 137                                 RouteTimeAxisView&            tv,
 138                                 boost::shared_ptr<MidiRegion> r,
 139                                 double                        spu,
 140                                 uint32_t                      basic_color,
 141                                 TimeAxisViewItem::Visibility  visibility)
 142         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 143         , _current_range_min(0)
 144         , _current_range_max(0)
 145         , _region_relative_time_converter(r->session().tempo_map(), r->position())
 146         , _source_relative_time_converter(r->session().tempo_map(), r->position() - r->start())
 147         , _active_notes(0)
 148         , _note_group (new ArdourCanvas::Container (parent))
 149         , _note_diff_command (0)
 150         , _ghost_note(0)
 151         , _step_edit_cursor (0)
 152         , _step_edit_cursor_width (1.0)
 153         , _step_edit_cursor_position (0.0)
 154         , _channel_selection_scoped_note (0)
 155         , _temporary_note_group (0)
 156         , _mouse_state(None)
 157         , _pressed_button(0)
 158         , _sort_needed (true)
 159         , _optimization_iterator (_events.end())
 160         , _list_editor (0)
 161         , _no_sound_notes (false)
 162         , _last_event_x (0)
 163         , _last_event_y (0)
 164         , pre_enter_cursor (0)
 165         , pre_press_cursor (0)
 166         , pre_note_enter_cursor (0)
 167         , _note_player (0)
 168 {
 169         CANVAS_DEBUG_NAME (_note_group, string_compose ("note group for %1", get_item_name()));
 170         _note_group->raise_to_top();
 171
 172         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 173
 174         connect_to_diskstream ();
 175
 176         SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), boost::bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
 177 }
 178
 179 void
 180 MidiRegionView::parameter_changed (std::string const & p)
 181 {
 182         if (p == "display-first-midi-bank-as-zero") {
 183                 if (_enable_display) {
 184                         redisplay_model();
 185                 }
 186         }
 187 }
 188
 189 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 190         : sigc::trackable(other)
 191         , RegionView (other)
 192         , _current_range_min(0)
 193         , _current_range_max(0)
 194         , _region_relative_time_converter(other.region_relative_time_converter())
 195         , _source_relative_time_converter(other.source_relative_time_converter())
 196         , _active_notes(0)
 197         , _note_group (new ArdourCanvas::Container (get_canvas_group()))
 198         , _note_diff_command (0)
 199         , _ghost_note(0)
 200         , _step_edit_cursor (0)
 201         , _step_edit_cursor_width (1.0)
 202         , _step_edit_cursor_position (0.0)
 203         , _channel_selection_scoped_note (0)
 204         , _temporary_note_group (0)
 205         , _mouse_state(None)
 206         , _pressed_button(0)
 207         , _sort_needed (true)
 208         , _optimization_iterator (_events.end())
 209         , _list_editor (0)
 210         , _no_sound_notes (false)
 211         , _last_event_x (0)
 212         , _last_event_y (0)
 213         , pre_enter_cursor (0)
 214         , pre_press_cursor (0)
 215         , pre_note_enter_cursor (0)
 216         , _note_player (0)
 217 {
 218         init (false);
 219 }
 220
 221 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 222         : RegionView (other, boost::shared_ptr<Region> (region))
 223         , _current_range_min(0)
 224         , _current_range_max(0)
 225         , _region_relative_time_converter(other.region_relative_time_converter())
 226         , _source_relative_time_converter(other.source_relative_time_converter())
 227         , _active_notes(0)
 228         , _note_group (new ArdourCanvas::Container (get_canvas_group()))
 229         , _note_diff_command (0)
 230         , _ghost_note(0)
 231         , _step_edit_cursor (0)
 232         , _step_edit_cursor_width (1.0)
 233         , _step_edit_cursor_position (0.0)
 234         , _channel_selection_scoped_note (0)
 235         , _temporary_note_group (0)
 236         , _mouse_state(None)
 237         , _pressed_button(0)
 238         , _sort_needed (true)
 239         , _optimization_iterator (_events.end())
 240         , _list_editor (0)
 241         , _no_sound_notes (false)
 242         , _last_event_x (0)
 243         , _last_event_y (0)
 244         , pre_enter_cursor (0)
 245         , pre_press_cursor (0)
 246         , pre_note_enter_cursor (0)
 247         , _note_player (0)
 248 {
 249         init (true);
 250 }
 251
 252 void
 253 MidiRegionView::init (bool wfd)
 254 {
 255         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 256
 257         NoteBase::NoteBaseDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
 258                                            boost::bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
 259                                            gui_context());
 260
 261         if (wfd) {
 262                 midi_region()->midi_source(0)->load_model();
 263         }
 264
 265         _model = midi_region()->midi_source(0)->model();
 266         _enable_display = false;
 267
 268         RegionView::init (false);
 269
 270         set_height (trackview.current_height());
 271
 272         region_muted ();
 273         region_sync_changed ();
 274         region_resized (ARDOUR::bounds_change);
 275         region_locked ();
 276
 277         set_colors ();
 278
 279         _enable_display = true;
 280         if (_model) {
 281                 if (wfd) {
 282                         display_model (_model);
 283                 }
 284         }
 285
 286         reset_width_dependent_items (_pixel_width);
 287
 288         group->raise_to_top();
 289
 290         midi_view()->midi_track()->PlaybackChannelModeChanged.connect (_channel_mode_changed_connection, invalidator (*this),
 291                                                                        boost::bind (&MidiRegionView::midi_channel_mode_changed, this),
 292                                                                        gui_context ());
 293
 294         instrument_info().Changed.connect (_instrument_changed_connection, invalidator (*this),
 295                                            boost::bind (&MidiRegionView::instrument_settings_changed, this), gui_context());
 296
 297         trackview.editor().SnapChanged.connect(snap_changed_connection, invalidator(*this),
 298                                                boost::bind (&MidiRegionView::snap_changed, this),
 299                                                gui_context());
 300
 301         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
 302         connect_to_diskstream ();
 303
 304         SelectionCleared.connect (_selection_cleared_connection, invalidator (*this), boost::bind (&MidiRegionView::selection_cleared, this, _1), gui_context ());
 305 }
 306
 307 InstrumentInfo&
 308 MidiRegionView::instrument_info () const
 309 {
 310         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
 311         return route_ui->route()->instrument_info();
 312 }
 313
 314 const boost::shared_ptr<ARDOUR::MidiRegion>
 315 MidiRegionView::midi_region() const
 316 {
 317         return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region);
 318 }
 319
 320 void
 321 MidiRegionView::connect_to_diskstream ()
 322 {
 323         midi_view()->midi_track()->DataRecorded.connect(
 324                 *this, invalidator(*this),
 325                 boost::bind (&MidiRegionView::data_recorded, this, _1),
 326                 gui_context());
 327 }
 328
 329 bool
 330 MidiRegionView::canvas_group_event(GdkEvent* ev)
 331 {
 332         if (in_destructor) {
 333                 return false;
 334         }
 335
 336         bool r;
 337
 338         switch (ev->type) {
 339         case GDK_ENTER_NOTIFY:
 340         case GDK_LEAVE_NOTIFY:
 341                 _last_event_x = ev->crossing.x;
 342                 _last_event_y = ev->crossing.y;
 343                 break;
 344         case GDK_MOTION_NOTIFY:
 345                 _last_event_x = ev->motion.x;
 346                 _last_event_y = ev->motion.y;
 347                 break;
 348         default:
 349                 break;
 350         }
 351
 352         if (ev->type == GDK_2BUTTON_PRESS) {
 353                 // cannot use double-click to exit internal mode if single-click is being used
 354                 MouseMode m = trackview.editor().current_mouse_mode();
 355
 356                 if ((m != MouseObject || !Keyboard::modifier_state_contains (ev->button.state, Keyboard::insert_note_modifier())) && (m != MouseDraw)) {
 357                         return trackview.editor().toggle_internal_editing_from_double_click (ev);
 358                 }
 359         }
 360
 361         if ((!trackview.editor().internal_editing() && trackview.editor().current_mouse_mode() != MouseGain) ||
 362             (trackview.editor().current_mouse_mode() == MouseTimeFX)) {
 363                 // handle non-internal-edit/non-draw modes elsewhere
 364                 return RegionView::canvas_group_event (ev);
 365         }
 366
 367         switch (ev->type) {
 368         case GDK_SCROLL:
 369                 if (scroll (&ev->scroll)) {
 370                         return true;
 371                 }
 372                 break;
 373
 374         case GDK_KEY_PRESS:
 375                 return key_press (&ev->key);
 376
 377         case GDK_KEY_RELEASE:
 378                 return key_release (&ev->key);
 379
 380         case GDK_BUTTON_PRESS:
 381                 return button_press (&ev->button);
 382
 383         case GDK_BUTTON_RELEASE:
 384                 r = button_release (&ev->button);
 385                 delete _note_player;
 386                 _note_player = 0;
 387                 return r;
 388
 389         case GDK_ENTER_NOTIFY:
 390                 // set entered_regionview (among other things)
 391                 trackview.editor().canvas_region_view_event (ev, group, this);
 392                 return enter_notify (&ev->crossing);
 393
 394         case GDK_LEAVE_NOTIFY:
 395                 // reset entered_regionview (among other things)
 396                 trackview.editor().canvas_region_view_event (ev, group, this);
 397                 return leave_notify (&ev->crossing);
 398
 399         case GDK_MOTION_NOTIFY:
 400                 return motion (&ev->motion);
 401
 402         default:
 403                 break;
 404         }
 405
 406         return trackview.editor().canvas_region_view_event (ev, group, this);
 407 }
 408
 409 bool
 410 MidiRegionView::enter_notify (GdkEventCrossing* ev)
 411 {
 412         trackview.editor().MouseModeChanged.connect (
 413                 _mouse_mode_connection, invalidator (*this), boost::bind (&MidiRegionView::mouse_mode_changed, this), gui_context ()
 414                 );
 415
 416         if (trackview.editor().current_mouse_mode() == MouseDraw && _mouse_state != AddDragging) {
 417                 create_ghost_note (ev->x, ev->y);
 418         }
 419
 420         if (!trackview.editor().internal_editing()) {
 421                 Keyboard::magic_widget_drop_focus();
 422         } else {
 423                 Keyboard::magic_widget_grab_focus();
 424                 group->grab_focus();
 425         }
 426
 427         // if current operation is non-operational in a midi region, change the cursor to so indicate
 428         if (trackview.editor().current_mouse_mode() == MouseGain) {
 429                 Editor* editor = dynamic_cast<Editor *> (&trackview.editor());
 430                 pre_enter_cursor = editor->get_canvas_cursor();
 431                 editor->set_canvas_cursor(editor->cursors()->timebar);
 432         }
 433
 434         return false;
 435 }
 436
 437 bool
 438 MidiRegionView::leave_notify (GdkEventCrossing*)
 439 {
 440         _mouse_mode_connection.disconnect ();
 441
 442         trackview.editor().verbose_cursor()->hide ();
 443         remove_ghost_note ();
 444
 445         if (trackview.editor().internal_editing()) {
 446                 Keyboard::magic_widget_drop_focus();
 447         }
 448
 449         if (pre_enter_cursor) {
 450                 Editor* editor = dynamic_cast<Editor *> (&trackview.editor());
 451                 editor->set_canvas_cursor(pre_enter_cursor);
 452                 pre_enter_cursor = 0;
 453         }
 454
 455         return false;
 456 }
 457
 458 void
 459 MidiRegionView::mouse_mode_changed ()
 460 {
 461         if (trackview.editor().current_mouse_mode() == MouseDraw && trackview.editor().internal_editing()) {
 462                 create_ghost_note (_last_event_x, _last_event_y);
 463         } else {
 464                 remove_ghost_note ();
 465                 trackview.editor().verbose_cursor()->hide ();
 466         }
 467
 468         if (!trackview.editor().internal_editing()) {
 469                 Keyboard::magic_widget_drop_focus();
 470         } else {
 471                 Keyboard::magic_widget_grab_focus();
 472                 group->grab_focus();
 473         }
 474 }
 475
 476 bool
 477 MidiRegionView::button_press (GdkEventButton* ev)
 478 {
 479         if (ev->button != 1) {
 480                 return false;
 481         }
 482
 483         Editor* editor = dynamic_cast<Editor *> (&trackview.editor());
 484         MouseMode m = editor->current_mouse_mode();
 485
 486         if (m == MouseObject && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 487                 pre_press_cursor = editor->get_canvas_cursor ();
 488                 editor->set_canvas_cursor (editor->cursors()->midi_pencil);
 489         }
 490
 491         if (_mouse_state != SelectTouchDragging) {
 492
 493                 _pressed_button = ev->button;
 494                 _mouse_state = Pressed;
 495
 496                 return true;
 497         }
 498
 499         _pressed_button = ev->button;
 500
 501         return true;
 502 }
 503
 504 bool
 505 MidiRegionView::button_release (GdkEventButton* ev)
 506 {
 507         double event_x, event_y;
 508
 509         if (ev->button != 1) {
 510                 return false;
 511         }
 512
 513         event_x = ev->x;
 514         event_y = ev->y;
 515
 516         group->canvas_to_item (event_x, event_y);
 517         group->ungrab ();
 518
 519         PublicEditor& editor = trackview.editor ();
 520
 521         if (pre_press_cursor) {
 522                 dynamic_cast<Editor*>(&editor)->set_canvas_cursor (pre_press_cursor, false);
 523                 pre_press_cursor = 0;
 524         }
 525
 526         switch (_mouse_state) {
 527         case Pressed: // Clicked
 528
 529                 switch (editor.current_mouse_mode()) {
 530                 case MouseRange:
 531                         /* no motion occured - simple click */
 532                         clear_selection ();
 533                         break;
 534
 535                 case MouseObject:
 536                 case MouseTimeFX:
 537                         {
 538                                 clear_selection();
 539
 540                                 if (Keyboard::is_insert_note_event(ev)) {
 541
 542                                         double event_x, event_y;
 543
 544                                         event_x = ev->x;
 545                                         event_y = ev->y;
 546                                         group->canvas_to_item (event_x, event_y);
 547
 548                                         Evoral::MusicalTime beats = get_grid_beats(editor.pixel_to_sample(event_x));
 549
 550                                         /* Shorten the length by 1 tick so that we can add a new note at the next
 551                                            grid snap without it overlapping this one.
 552                                         */
 553                                         beats -= Evoral::MusicalTime::tick();
 554
 555                                         create_note_at (editor.pixel_to_sample (event_x), event_y, beats, true);
 556                                 }
 557
 558                                 break;
 559                         }
 560                 case MouseDraw:
 561                         {
 562                                 Evoral::MusicalTime beats = get_grid_beats(editor.pixel_to_sample(event_x));
 563
 564                                 /* Shorten the length by 1 tick so that we can add a new note at the next
 565                                    grid snap without it overlapping this one.
 566                                 */
 567                                 beats -= Evoral::MusicalTime::tick();
 568
 569                                 create_note_at (editor.pixel_to_sample (event_x), event_y, beats, true);
 570
 571                                 break;
 572                         }
 573                 default:
 574                         break;
 575                 }
 576
 577                 _mouse_state = None;
 578                 break;
 579
 580         case SelectRectDragging:
 581         case AddDragging:
 582                 editor.drags()->end_grab ((GdkEvent *) ev);
 583                 _mouse_state = None;
 584                 create_ghost_note (ev->x, ev->y);
 585                 break;
 586
 587
 588         default:
 589                 break;
 590         }
 591
 592         return false;
 593 }
 594
 595 bool
 596 MidiRegionView::motion (GdkEventMotion* ev)
 597 {
 598         PublicEditor& editor = trackview.editor ();
 599
 600         if (!_ghost_note && editor.current_mouse_mode() == MouseObject &&
 601             Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier()) &&
 602             _mouse_state != AddDragging) {
 603
 604                 create_ghost_note (ev->x, ev->y);
 605
 606         } else if (_ghost_note && editor.current_mouse_mode() == MouseObject &&
 607                    Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 608
 609                 update_ghost_note (ev->x, ev->y);
 610
 611         } else if (_ghost_note && editor.current_mouse_mode() == MouseObject) {
 612
 613                 remove_ghost_note ();
 614                 editor.verbose_cursor()->hide ();
 615
 616         } else if (_ghost_note && editor.current_mouse_mode() == MouseDraw) {
 617
 618                 update_ghost_note (ev->x, ev->y);
 619         }
 620
 621         /* any motion immediately hides velocity text that may have been visible */
 622
 623         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 624                 (*i)->hide_velocity ();
 625         }
 626
 627         switch (_mouse_state) {
 628         case Pressed:
 629
 630                 if (_pressed_button == 1) {
 631
 632                         MouseMode m = editor.current_mouse_mode();
 633
 634                         if (m == MouseDraw || (m == MouseObject && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier()))) {
 635                                 editor.drags()->set (new NoteCreateDrag (dynamic_cast<Editor *> (&editor), group, this), (GdkEvent *) ev);
 636                                 _mouse_state = AddDragging;
 637                                 remove_ghost_note ();
 638                                 editor.verbose_cursor()->hide ();
 639                                 return true;
 640                         } else if (m == MouseObject) {
 641                                 editor.drags()->set (new MidiRubberbandSelectDrag (dynamic_cast<Editor *> (&editor), this), (GdkEvent *) ev);
 642                                 clear_selection ();
 643                                 _mouse_state = SelectRectDragging;
 644                                 return true;
 645                         } else if (m == MouseRange) {
 646                                 editor.drags()->set (new MidiVerticalSelectDrag (dynamic_cast<Editor *> (&editor), this), (GdkEvent *) ev);
 647                                 _mouse_state = SelectVerticalDragging;
 648                                 return true;
 649                         }
 650                 }
 651
 652                 return false;
 653
 654         case SelectRectDragging:
 655         case SelectVerticalDragging:
 656         case AddDragging:
 657                 editor.drags()->motion_handler ((GdkEvent *) ev, false);
 658                 break;
 659
 660         case SelectTouchDragging:
 661                 return false;
 662
 663         default:
 664                 break;
 665
 666         }
 667
 668         /* we may be dragging some non-note object (eg. patch-change, sysex)
 669          */
 670
 671         return editor.drags()->motion_handler ((GdkEvent *) ev, false);
 672 }
 673
 674
 675 bool
 676 MidiRegionView::scroll (GdkEventScroll* ev)
 677 {
 678         if (_selection.empty()) {
 679                 return false;
 680         }
 681
 682         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 683                 /* XXX: bit of a hack; allow PrimaryModifier scroll through so that
 684                    it still works for zoom.
 685                 */
 686                 return false;
 687         }
 688
 689         trackview.editor().verbose_cursor()->hide ();
 690
 691         bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 692         bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 693
 694         if (ev->direction == GDK_SCROLL_UP) {
 695                 change_velocities (true, fine, false, together);
 696         } else if (ev->direction == GDK_SCROLL_DOWN) {
 697                 change_velocities (false, fine, false, together);
 698         } else {
 699                 /* left, right: we don't use them */
 700                 return false;
 701         }
 702
 703         return true;
 704 }
 705
 706 bool
 707 MidiRegionView::key_press (GdkEventKey* ev)
 708 {
 709         /* since GTK bindings are generally activated on press, and since
 710            detectable auto-repeat is the name of the game and only sends
 711            repeated presses, carry out key actions at key press, not release.
 712         */
 713
 714         bool unmodified = Keyboard::no_modifier_keys_pressed (ev);
 715
 716         if (unmodified && (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R)) {
 717                 _mouse_state = SelectTouchDragging;
 718                 return true;
 719
 720         } else if (ev->keyval == GDK_Escape && unmodified) {
 721                 clear_selection();
 722                 _mouse_state = None;
 723
 724         } else if (unmodified && (ev->keyval == GDK_comma || ev->keyval == GDK_period)) {
 725
 726                 bool start = (ev->keyval == GDK_comma);
 727                 bool end = (ev->keyval == GDK_period);
 728                 bool shorter = Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier);
 729                 bool fine = Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 730
 731                 change_note_lengths (fine, shorter, Evoral::MusicalTime(), start, end);
 732
 733                 return true;
 734
 735         } else if ((ev->keyval == GDK_BackSpace || ev->keyval == GDK_Delete) && unmodified) {
 736
 737                 if (_selection.empty()) {
 738                         return false;
 739                 }
 740
 741                 delete_selection();
 742                 return true;
 743
 744         } else if (ev->keyval == GDK_Tab) {
 745
 746                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 747                         goto_previous_note (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier));
 748                 } else {
 749                         goto_next_note (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier));
 750                 }
 751                 return true;
 752
 753         } else if (ev->keyval == GDK_ISO_Left_Tab) {
 754
 755                 /* Shift-TAB generates ISO Left Tab, for some reason */
 756
 757                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 758                         goto_previous_note (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier));
 759                 } else {
 760                         goto_next_note (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier));
 761                 }
 762                 return true;
 763
 764
 765
 766         } else if (ev->keyval == GDK_Up) {
 767
 768                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 769                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 770                 bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::Level4Modifier);
 771
 772                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 773                         change_velocities (true, fine, allow_smush, together);
 774                 } else {
 775                         transpose (true, fine, allow_smush);
 776                 }
 777                 return true;
 778
 779         } else if (ev->keyval == GDK_Down) {
 780
 781                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 782                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 783                 bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::Level4Modifier);
 784
 785                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 786                         change_velocities (false, fine, allow_smush, together);
 787                 } else {
 788                         transpose (false, fine, allow_smush);
 789                 }
 790                 return true;
 791
 792         } else if (ev->keyval == GDK_Left && unmodified) {
 793
 794                 nudge_notes (false);
 795                 return true;
 796
 797         } else if (ev->keyval == GDK_Right && unmodified) {
 798
 799                 nudge_notes (true);
 800                 return true;
 801
 802         } else if (ev->keyval == GDK_c && unmodified) {
 803                 channel_edit ();
 804                 return true;
 805
 806         } else if (ev->keyval == GDK_v && unmodified) {
 807                 velocity_edit ();
 808                 return true;
 809         }
 810
 811         return false;
 812 }
 813
 814 bool
 815 MidiRegionView::key_release (GdkEventKey* ev)
 816 {
 817         if ((_mouse_state == SelectTouchDragging) && (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R)) {
 818                 _mouse_state = None;
 819                 return true;
 820         }
 821         return false;
 822 }
 823
 824 void
 825 MidiRegionView::channel_edit ()
 826 {
 827         if (_selection.empty()) {
 828                 return;
 829         }
 830
 831         /* pick a note somewhat at random (since Selection is a set<>) to
 832          * provide the "current" channel for the dialog.
 833          */
 834
 835         uint8_t current_channel = (*_selection.begin())->note()->channel ();
 836         MidiChannelDialog channel_dialog (current_channel);
 837         int ret = channel_dialog.run ();
 838
 839         switch (ret) {
 840         case Gtk::RESPONSE_OK:
 841                 break;
 842         default:
 843                 return;
 844         }
 845
 846         uint8_t new_channel = channel_dialog.active_channel ();
 847
 848         start_note_diff_command (_("channel edit"));
 849
 850         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
 851                 Selection::iterator next = i;
 852                 ++next;
 853                 change_note_channel (*i, new_channel);
 854                 i = next;
 855         }
 856
 857         apply_diff ();
 858 }
 859
 860 void
 861 MidiRegionView::velocity_edit ()
 862 {
 863         if (_selection.empty()) {
 864                 return;
 865         }
 866
 867         /* pick a note somewhat at random (since Selection is a set<>) to
 868          * provide the "current" velocity for the dialog.
 869          */
 870
 871         uint8_t current_velocity = (*_selection.begin())->note()->velocity ();
 872         MidiVelocityDialog velocity_dialog (current_velocity);
 873         int ret = velocity_dialog.run ();
 874
 875         switch (ret) {
 876         case Gtk::RESPONSE_OK:
 877                 break;
 878         default:
 879                 return;
 880         }
 881
 882         uint8_t new_velocity = velocity_dialog.velocity ();
 883
 884         start_note_diff_command (_("velocity edit"));
 885
 886         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
 887                 Selection::iterator next = i;
 888                 ++next;
 889                 change_note_velocity (*i, new_velocity, false);
 890                 i = next;
 891         }
 892
 893         apply_diff ();
 894 }
 895
 896 void
 897 MidiRegionView::show_list_editor ()
 898 {
 899         if (!_list_editor) {
 900                 _list_editor = new MidiListEditor (trackview.session(), midi_region(), midi_view()->midi_track());
 901         }
 902         _list_editor->present ();
 903 }
 904
 905 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 906  * \param t time in frames relative to the position of the region
 907  * \param y vertical position in pixels
 908  * \param length duration of the note in beats
 909  * \param snap_t true to snap t to the grid, otherwise false.
 910  */
 911 void
 912 MidiRegionView::create_note_at (framepos_t t, double y, Evoral::MusicalTime length, bool snap_t)
 913 {
 914         if (length < 2 * DBL_EPSILON) {
 915                 return;
 916         }
 917
 918         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 919         MidiStreamView* const view = mtv->midi_view();
 920
 921         const double note = view->y_to_note(y);
 922
 923         // Start of note in frames relative to region start
 924         if (snap_t) {
 925                 framecnt_t grid_frames;
 926                 t = snap_frame_to_grid_underneath (t, grid_frames);
 927         }
 928
 929         const boost::shared_ptr<NoteType> new_note (
 930                 new NoteType (mtv->get_channel_for_add (),
 931                               region_frames_to_region_beats(t + _region->start()),
 932                               length,
 933                               (uint8_t)note, 0x40));
 934
 935         if (_model->contains (new_note)) {
 936                 return;
 937         }
 938
 939         view->update_note_range(new_note->note());
 940
 941         MidiModel::NoteDiffCommand* cmd = _model->new_note_diff_command(_("add note"));
 942         cmd->add (new_note);
 943         _model->apply_command(*trackview.session(), cmd);
 944
 945         play_midi_note (new_note);
 946 }
 947
 948 void
 949 MidiRegionView::clear_events (bool with_selection_signal)
 950 {
 951         clear_selection (with_selection_signal);
 952
 953         MidiGhostRegion* gr;
 954         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 955                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 956                         gr->clear_events();
 957                 }
 958         }
 959
 960         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 961                 delete *i;
 962         }
 963
 964         _events.clear();
 965         _patch_changes.clear();
 966         _sys_exes.clear();
 967         _optimization_iterator = _events.end();
 968 }
 969
 970 void
 971 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 972 {
 973         _model = model;
 974
 975         content_connection.disconnect ();
 976         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 977
 978         clear_events ();
 979
 980         if (_enable_display) {
 981                 redisplay_model();
 982         }
 983 }
 984
 985 void
 986 MidiRegionView::start_note_diff_command (string name)
 987 {
 988         if (!_note_diff_command) {
 989                 _note_diff_command = _model->new_note_diff_command (name);
 990         }
 991 }
 992
 993 void
 994 MidiRegionView::note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 995 {
 996         if (_note_diff_command) {
 997                 _note_diff_command->add (note);
 998         }
 999         if (selected) {
1000                 _marked_for_selection.insert(note);
1001         }
1002         if (show_velocity) {
1003                 _marked_for_velocity.insert(note);
1004         }
1005 }
1006
1007 void
1008 MidiRegionView::note_diff_remove_note (NoteBase* ev)
1009 {
1010         if (_note_diff_command && ev->note()) {
1011                 _note_diff_command->remove(ev->note());
1012         }
1013 }
1014
1015 void
1016 MidiRegionView::note_diff_add_change (NoteBase* ev,
1017                                       MidiModel::NoteDiffCommand::Property property,
1018                                       uint8_t val)
1019 {
1020         if (_note_diff_command) {
1021                 _note_diff_command->change (ev->note(), property, val);
1022         }
1023 }
1024
1025 void
1026 MidiRegionView::note_diff_add_change (NoteBase* ev,
1027                                       MidiModel::NoteDiffCommand::Property property,
1028                                       Evoral::MusicalTime val)
1029 {
1030         if (_note_diff_command) {
1031                 _note_diff_command->change (ev->note(), property, val);
1032         }
1033 }
1034
1035 void
1036 MidiRegionView::apply_diff (bool as_subcommand)
1037 {
1038         bool add_or_remove;
1039
1040         if (!_note_diff_command) {
1041                 return;
1042         }
1043
1044         if ((add_or_remove = _note_diff_command->adds_or_removes())) {
1045                 // Mark all selected notes for selection when model reloads
1046                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1047                         _marked_for_selection.insert((*i)->note());
1048                 }
1049         }
1050
1051         if (as_subcommand) {
1052                 _model->apply_command_as_subcommand (*trackview.session(), _note_diff_command);
1053         } else {
1054                 _model->apply_command (*trackview.session(), _note_diff_command);
1055         }
1056
1057         _note_diff_command = 0;
1058         midi_view()->midi_track()->playlist_modified();
1059
1060         if (add_or_remove) {
1061                 _marked_for_selection.clear();
1062         }
1063
1064         _marked_for_velocity.clear();
1065 }
1066
1067 void
1068 MidiRegionView::abort_command()
1069 {
1070         delete _note_diff_command;
1071         _note_diff_command = 0;
1072         clear_selection();
1073 }
1074
1075 NoteBase*
1076 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
1077 {
1078         if (_optimization_iterator != _events.end()) {
1079                 ++_optimization_iterator;
1080         }
1081
1082         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
1083                 return *_optimization_iterator;
1084         }
1085
1086         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
1087                 if ((*_optimization_iterator)->note() == note) {
1088                         return *_optimization_iterator;
1089                 }
1090         }
1091
1092         return 0;
1093 }
1094
1095 void
1096 MidiRegionView::get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::NoteOperator op, uint8_t val, int chan_mask)
1097 {
1098         MidiModel::Notes notes;
1099         _model->get_notes (notes, op, val, chan_mask);
1100
1101         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1102                 NoteBase* cne = find_canvas_note (*n);
1103                 if (cne) {
1104                         e.push_back (cne);
1105                 }
1106         }
1107 }
1108
1109 void
1110 MidiRegionView::redisplay_model()
1111 {
1112         // Don't redisplay the model if we're currently recording and displaying that
1113         if (_active_notes) {
1114                 return;
1115         }
1116
1117         if (!_model) {
1118                 return;
1119         }
1120
1121         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1122                 (*i)->invalidate ();
1123         }
1124
1125         MidiModel::ReadLock lock(_model->read_lock());
1126
1127         MidiModel::Notes& notes (_model->notes());
1128         _optimization_iterator = _events.begin();
1129
1130         bool empty_when_starting = _events.empty();
1131
1132         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1133
1134                 boost::shared_ptr<NoteType> note (*n);
1135                 NoteBase* cne;
1136                 bool visible;
1137
1138                 if (note_in_region_range (note, visible)) {
1139
1140                         if (!empty_when_starting && (cne = find_canvas_note (note)) != 0) {
1141
1142                                 cne->validate ();
1143
1144                                 Note* cn;
1145                                 Hit* ch;
1146
1147                                 if ((cn = dynamic_cast<Note*>(cne)) != 0) {
1148                                         update_note (cn);
1149                                 } else if ((ch = dynamic_cast<Hit*>(cne)) != 0) {
1150                                         update_hit (ch);
1151                                 }
1152
1153                                 if (visible) {
1154                                         cne->show ();
1155                                 } else {
1156                                         cne->hide ();
1157                                 }
1158
1159                         } else {
1160
1161                                 add_note (note, visible);
1162                         }
1163
1164                 } else {
1165
1166                         if (!empty_when_starting && (cne = find_canvas_note (note)) != 0) {
1167                                 cne->validate ();
1168                                 cne->hide ();
1169                         }
1170                 }
1171         }
1172
1173
1174         /* remove note items that are no longer valid */
1175
1176         if (!empty_when_starting) {
1177                 for (Events::iterator i = _events.begin(); i != _events.end(); ) {
1178                         if (!(*i)->valid ()) {
1179
1180                                 for (vector<GhostRegion*>::iterator j = ghosts.begin(); j != ghosts.end(); ++j) {
1181                                         MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*j);
1182                                         if (gr) {
1183                                                 gr->remove_note (*i);
1184                                         }
1185                                 }
1186
1187                                 delete *i;
1188                                 i = _events.erase (i);
1189
1190                         } else {
1191                                 ++i;
1192                         }
1193                 }
1194         }
1195
1196         _patch_changes.clear();
1197         _sys_exes.clear();
1198
1199         display_sysexes();
1200         display_patch_changes ();
1201
1202         _marked_for_selection.clear ();
1203         _marked_for_velocity.clear ();
1204
1205         /* we may have caused _events to contain things out of order (e.g. if a note
1206            moved earlier or later). we don't generally need them in time order, but
1207            make a note that a sort is required for those cases that require it.
1208         */
1209
1210         _sort_needed = true;
1211 }
1212
1213 void
1214 MidiRegionView::display_patch_changes ()
1215 {
1216         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1217         uint16_t chn_mask = mtv->midi_track()->get_playback_channel_mask();
1218
1219         for (uint8_t i = 0; i < 16; ++i) {
1220                 display_patch_changes_on_channel (i, chn_mask & (1 << i));
1221         }
1222 }
1223
1224 /** @param active_channel true to display patch changes fully, false to display
1225  * them `greyed-out' (as on an inactive channel)
1226  */
1227 void
1228 MidiRegionView::display_patch_changes_on_channel (uint8_t channel, bool active_channel)
1229 {
1230         for (MidiModel::PatchChanges::const_iterator i = _model->patch_changes().begin(); i != _model->patch_changes().end(); ++i) {
1231
1232                 if ((*i)->channel() != channel) {
1233                         continue;
1234                 }
1235
1236                 const string patch_name = instrument_info().get_patch_name ((*i)->bank(), (*i)->program(), channel);
1237                 add_canvas_patch_change (*i, patch_name, active_channel);
1238         }
1239 }
1240
1241 void
1242 MidiRegionView::display_sysexes()
1243 {
1244         bool have_periodic_system_messages = false;
1245         bool display_periodic_messages = true;
1246
1247         if (!Config->get_never_display_periodic_midi()) {
1248
1249                 for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1250                         const boost::shared_ptr<const Evoral::MIDIEvent<Evoral::MusicalTime> > mev =
1251                                 boost::static_pointer_cast<const Evoral::MIDIEvent<Evoral::MusicalTime> > (*i);
1252
1253                         if (mev) {
1254                                 if (mev->is_spp() || mev->is_mtc_quarter() || mev->is_mtc_full()) {
1255                                         have_periodic_system_messages = true;
1256                                         break;
1257                                 }
1258                         }
1259                 }
1260
1261                 if (have_periodic_system_messages) {
1262                         double zoom = trackview.editor().get_current_zoom (); // frames per pixel
1263
1264                         /* get an approximate value for the number of samples per video frame */
1265
1266                         double video_frame = trackview.session()->frame_rate() * (1.0/30);
1267
1268                         /* if we are zoomed out beyond than the cutoff (i.e. more
1269                          * frames per pixel than frames per 4 video frames), don't
1270                          * show periodic sysex messages.
1271                          */
1272
1273                         if (zoom > (video_frame*4)) {
1274                                 display_periodic_messages = false;
1275                         }
1276                 }
1277         } else {
1278                 display_periodic_messages = false;
1279         }
1280
1281         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1282
1283                 const boost::shared_ptr<const Evoral::MIDIEvent<Evoral::MusicalTime> > mev =
1284                         boost::static_pointer_cast<const Evoral::MIDIEvent<Evoral::MusicalTime> > (*i);
1285
1286                 Evoral::MusicalTime time = (*i)->time();
1287
1288                 if (mev) {
1289                         if (mev->is_spp() || mev->is_mtc_quarter() || mev->is_mtc_full()) {
1290                                 if (!display_periodic_messages) {
1291                                         continue;
1292                                 }
1293                         }
1294                 }
1295
1296                 ostringstream str;
1297                 str << hex;
1298                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
1299                         str << int((*i)->buffer()[b]);
1300                         if (b != (*i)->size() -1) {
1301                                 str << " ";
1302                         }
1303                 }
1304                 string text = str.str();
1305
1306                 const double x = trackview.editor().sample_to_pixel(source_beats_to_region_frames(time));
1307
1308                 double height = midi_stream_view()->contents_height();
1309
1310                 // CAIROCANVAS: no longer passing *i (the sysex event) to the
1311                 // SysEx canvas object!!!
1312
1313                 boost::shared_ptr<SysEx> sysex = boost::shared_ptr<SysEx>(
1314                         new SysEx (*this, _note_group, text, height, x, 1.0));
1315
1316                 // Show unless message is beyond the region bounds
1317                 if (time - _region->start() >= _region->length() || time < _region->start()) {
1318                         sysex->hide();
1319                 } else {
1320                         sysex->show();
1321                 }
1322
1323                 _sys_exes.push_back(sysex);
1324         }
1325 }
1326
1327 MidiRegionView::~MidiRegionView ()
1328 {
1329         in_destructor = true;
1330
1331         trackview.editor().verbose_cursor()->hide ();
1332
1333         note_delete_connection.disconnect ();
1334
1335         delete _list_editor;
1336
1337         RegionViewGoingAway (this); /* EMIT_SIGNAL */
1338
1339         if (_active_notes) {
1340                 end_write();
1341         }
1342
1343         _selection_cleared_connection.disconnect ();
1344
1345         _selection.clear();
1346         clear_events (false);
1347
1348         delete _note_group;
1349         delete _note_diff_command;
1350         delete _step_edit_cursor;
1351         delete _temporary_note_group;
1352 }
1353
1354 void
1355 MidiRegionView::region_resized (const PropertyChange& what_changed)
1356 {
1357         RegionView::region_resized(what_changed);
1358
1359         if (what_changed.contains (ARDOUR::Properties::position)) {
1360                 _region_relative_time_converter.set_origin_b(_region->position());
1361                 set_duration(_region->length(), 0);
1362                 if (_enable_display) {
1363                         redisplay_model();
1364                 }
1365         }
1366
1367         if (what_changed.contains (ARDOUR::Properties::start) ||
1368             what_changed.contains (ARDOUR::Properties::position)) {
1369                 _source_relative_time_converter.set_origin_b (_region->position() - _region->start());
1370         }
1371 }
1372
1373 void
1374 MidiRegionView::reset_width_dependent_items (double pixel_width)
1375 {
1376         RegionView::reset_width_dependent_items(pixel_width);
1377
1378         if (_enable_display) {
1379                 redisplay_model();
1380         }
1381
1382         for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
1383                 if ((*x)->canvas_item()->width() >= _pixel_width) {
1384                         (*x)->hide();
1385                 } else {
1386                         (*x)->show();
1387                 }
1388         }
1389
1390         move_step_edit_cursor (_step_edit_cursor_position);
1391         set_step_edit_cursor_width (_step_edit_cursor_width);
1392 }
1393
1394 void
1395 MidiRegionView::set_height (double height)
1396 {
1397         double old_height = _height;
1398         RegionView::set_height(height);
1399
1400         apply_note_range (midi_stream_view()->lowest_note(),
1401                           midi_stream_view()->highest_note(),
1402                           height != old_height);
1403
1404         if (name_text) {
1405                 name_text->raise_to_top();
1406         }
1407
1408         for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
1409                 (*x)->set_height (midi_stream_view()->contents_height());
1410         }
1411
1412         if (_step_edit_cursor) {
1413                 _step_edit_cursor->set_y1 (midi_stream_view()->contents_height());
1414         }
1415 }
1416
1417
1418 /** Apply the current note range from the stream view
1419  * by repositioning/hiding notes as necessary
1420  */
1421 void
1422 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1423 {
1424         if (!_enable_display) {
1425                 return;
1426         }
1427
1428         if (!force && _current_range_min == min && _current_range_max == max) {
1429                 return;
1430         }
1431
1432         _current_range_min = min;
1433         _current_range_max = max;
1434
1435         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1436                 NoteBase* event = *i;
1437                 boost::shared_ptr<NoteType> note (event->note());
1438
1439                 if (note->note() < _current_range_min ||
1440                     note->note() > _current_range_max) {
1441                         event->hide();
1442                 } else {
1443                         event->show();
1444                 }
1445
1446                 if (Note* cnote = dynamic_cast<Note*>(event)) {
1447
1448                         const double y0 = 1. + floor (midi_stream_view()->note_to_y(note->note()));
1449                         const double y1 = y0 + std::max(1., floor(midi_stream_view()->note_height()) - 1.);
1450
1451                         cnote->set_y0 (y0);
1452                         cnote->set_y1 (y1);
1453
1454                 } else if (Hit* chit = dynamic_cast<Hit*>(event)) {
1455                         update_hit (chit);
1456                 }
1457         }
1458 }
1459
1460 GhostRegion*
1461 MidiRegionView::add_ghost (TimeAxisView& tv)
1462 {
1463         Note* note;
1464
1465         double unit_position = _region->position () / samples_per_pixel;
1466         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1467         MidiGhostRegion* ghost;
1468
1469         if (mtv && mtv->midi_view()) {
1470                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1471                    to allow having midi notes on top of note lines and waveforms.
1472                 */
1473                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1474         } else {
1475                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1476         }
1477
1478         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1479                 if ((note = dynamic_cast<Note*>(*i)) != 0) {
1480                         ghost->add_note(note);
1481                 }
1482         }
1483
1484         ghost->set_height ();
1485         ghost->set_duration (_region->length() / samples_per_pixel);
1486         ghosts.push_back (ghost);
1487
1488         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&RegionView::remove_ghost, this, _1), gui_context());
1489
1490         return ghost;
1491 }
1492
1493
1494 /** Begin tracking note state for successive calls to add_event
1495  */
1496 void
1497 MidiRegionView::begin_write()
1498 {
1499         if (_active_notes) {
1500                 delete[] _active_notes;
1501         }
1502         _active_notes = new Note*[128];
1503         for (unsigned i = 0; i < 128; ++i) {
1504                 _active_notes[i] = 0;
1505         }
1506 }
1507
1508
1509 /** Destroy note state for add_event
1510  */
1511 void
1512 MidiRegionView::end_write()
1513 {
1514         delete[] _active_notes;
1515         _active_notes = 0;
1516         _marked_for_selection.clear();
1517         _marked_for_velocity.clear();
1518 }
1519
1520
1521 /** Resolve an active MIDI note (while recording).
1522  */
1523 void
1524 MidiRegionView::resolve_note(uint8_t note, Evoral::MusicalTime end_time)
1525 {
1526         if (midi_view()->note_mode() != Sustained) {
1527                 return;
1528         }
1529
1530         if (_active_notes && _active_notes[note]) {
1531
1532                 /* XXX is end_time really region-centric? I think so, because
1533                    this is a new region that we're recording, so source zero is
1534                    the same as region zero
1535                 */
1536                 const framepos_t end_time_frames = region_beats_to_region_frames(end_time);
1537
1538                 _active_notes[note]->set_x1 (trackview.editor().sample_to_pixel(end_time_frames));
1539                 _active_notes[note]->set_outline_all ();
1540                 _active_notes[note] = 0;
1541
1542         }
1543 }
1544
1545
1546 /** Extend active notes to rightmost edge of region (if length is changed)
1547  */
1548 void
1549 MidiRegionView::extend_active_notes()
1550 {
1551         if (!_active_notes) {
1552                 return;
1553         }
1554
1555         for (unsigned i=0; i < 128; ++i) {
1556                 if (_active_notes[i]) {
1557                         _active_notes[i]->set_x1 (trackview.editor().sample_to_pixel(_region->length()));
1558                 }
1559         }
1560 }
1561
1562
1563 void
1564 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1565 {
1566         if (_no_sound_notes || !Config->get_sound_midi_notes()) {
1567                 return;
1568         }
1569
1570         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1571
1572         if (!route_ui || !route_ui->midi_track()) {
1573                 return;
1574         }
1575
1576         NotePlayer* np = new NotePlayer (route_ui->midi_track ());
1577         np->add (note);
1578         np->play ();
1579
1580         /* NotePlayer deletes itself */
1581 }
1582
1583 void
1584 MidiRegionView::start_playing_midi_note(boost::shared_ptr<NoteType> note)
1585 {
1586         if (_no_sound_notes || !Config->get_sound_midi_notes()) {
1587                 return;
1588         }
1589
1590         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1591
1592         if (!route_ui || !route_ui->midi_track()) {
1593                 return;
1594         }
1595
1596         delete _note_player;
1597         _note_player = new NotePlayer (route_ui->midi_track ());
1598         _note_player->add (note);
1599         _note_player->on ();
1600 }
1601
1602 void
1603 MidiRegionView::start_playing_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
1604 {
1605         if (_no_sound_notes || !Config->get_sound_midi_notes()) {
1606                 return;
1607         }
1608
1609         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1610
1611         if (!route_ui || !route_ui->midi_track()) {
1612                 return;
1613         }
1614
1615         delete _note_player;
1616         _note_player = new NotePlayer (route_ui->midi_track());
1617
1618         for (vector<boost::shared_ptr<NoteType> >::iterator n = notes.begin(); n != notes.end(); ++n) {
1619                 _note_player->add (*n);
1620         }
1621
1622         _note_player->on ();
1623 }
1624
1625
1626 bool
1627 MidiRegionView::note_in_region_range (const boost::shared_ptr<NoteType> note, bool& visible) const
1628 {
1629         const framepos_t note_start_frames = source_beats_to_region_frames (note->time());
1630         bool outside = (note_start_frames  < 0) || (note_start_frames > _region->last_frame());
1631
1632         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1633                 (note->note() <= midi_stream_view()->highest_note());
1634
1635         return !outside;
1636 }
1637
1638 /** Update a canvas note's size from its model note.
1639  *  @param ev Canvas note to update.
1640  *  @param update_ghost_regions true to update the note in any ghost regions that we have, otherwise false.
1641  */
1642 void
1643 MidiRegionView::update_note (Note* ev, bool update_ghost_regions)
1644 {
1645         boost::shared_ptr<NoteType> note = ev->note();
1646         const double x = trackview.editor().sample_to_pixel (source_beats_to_region_frames (note->time()));
1647         const double y0 = 1 + floor(midi_stream_view()->note_to_y(note->note()));
1648
1649         ev->set_x0 (x);
1650         ev->set_y0 (y0);
1651
1652         /* trim note display to not overlap the end of its region */
1653
1654         if (note->length() > 0) {
1655                 const framepos_t note_end_frames = min (source_beats_to_region_frames (note->end_time()), _region->length());
1656                 ev->set_x1 (trackview.editor().sample_to_pixel (note_end_frames));
1657         } else {
1658                 ev->set_x1 (trackview.editor().sample_to_pixel (_region->length()));
1659         }
1660
1661         ev->set_y1 (y0 + std::max(1., floor(midi_stream_view()->note_height()) - 1));
1662
1663         if (!note->length()) {
1664                 if (_active_notes && note->note() < 128) {
1665                         // If this note is already active there's a stuck note,
1666                         // finish the old note rectangle
1667                         if (_active_notes[note->note()]) {
1668                                 Note* const old_rect = _active_notes[note->note()];
1669                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1670                                 old_rect->set_x1 (x);
1671                                 old_rect->set_outline_all ();
1672                         }
1673                         _active_notes[note->note()] = ev;
1674                 }
1675                 /* outline all but right edge */
1676                 ev->set_outline_what (ArdourCanvas::Rectangle::What (
1677                                               ArdourCanvas::Rectangle::TOP|
1678                                               ArdourCanvas::Rectangle::LEFT|
1679                                               ArdourCanvas::Rectangle::BOTTOM));
1680         } else {
1681                 /* outline all edges */
1682                 ev->set_outline_all ();
1683         }
1684
1685         if (update_ghost_regions) {
1686                 for (std::vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1687                         MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*i);
1688                         if (gr) {
1689                                 gr->update_note (ev);
1690                         }
1691                 }
1692         }
1693 }
1694
1695 void
1696 MidiRegionView::update_hit (Hit* ev)
1697 {
1698         boost::shared_ptr<NoteType> note = ev->note();
1699
1700         const framepos_t note_start_frames = source_beats_to_region_frames(note->time());
1701         const double x = trackview.editor().sample_to_pixel(note_start_frames);
1702         const double diamond_size = std::max(1., floor(midi_stream_view()->note_height()) - 2.);
1703         const double y = 1.5 + floor(midi_stream_view()->note_to_y(note->note())) + diamond_size * .5;
1704
1705         ev->set_position (ArdourCanvas::Duple (x, y));
1706         ev->set_height (diamond_size);
1707 }
1708
1709 /** Add a MIDI note to the view (with length).
1710  *
1711  * If in sustained mode, notes with length 0 will be considered active
1712  * notes, and resolve_note should be called when the corresponding note off
1713  * event arrives, to properly display the note.
1714  */
1715 void
1716 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1717 {
1718         NoteBase* event = 0;
1719
1720         if (midi_view()->note_mode() == Sustained) {
1721
1722                 Note* ev_rect = new Note (*this, _note_group, note);
1723
1724                 update_note (ev_rect);
1725
1726                 event = ev_rect;
1727
1728                 MidiGhostRegion* gr;
1729
1730                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1731                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1732                                 gr->add_note(ev_rect);
1733                         }
1734                 }
1735
1736         } else if (midi_view()->note_mode() == Percussive) {
1737
1738                 const double diamond_size = std::max(1., floor(midi_stream_view()->note_height()) - 2.);
1739
1740                 Hit* ev_diamond = new Hit (*this, _note_group, diamond_size, note);
1741
1742                 update_hit (ev_diamond);
1743
1744                 event = ev_diamond;
1745
1746         } else {
1747                 event = 0;
1748         }
1749
1750         if (event) {
1751                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1752                         note_selected(event, true);
1753                 }
1754
1755                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1756                         event->show_velocity();
1757                 }
1758
1759                 event->on_channel_selection_change (get_selected_channels());
1760                 _events.push_back(event);
1761
1762                 if (visible) {
1763                         event->show();
1764                 } else {
1765                         event->hide ();
1766                 }
1767         }
1768
1769         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1770         MidiStreamView* const view = mtv->midi_view();
1771
1772         view->update_note_range (note->note());
1773 }
1774
1775 void
1776 MidiRegionView::step_add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1777                                Evoral::MusicalTime pos, Evoral::MusicalTime len)
1778 {
1779         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1780
1781         /* potentially extend region to hold new note */
1782
1783         framepos_t end_frame = source_beats_to_absolute_frames (new_note->end_time());
1784         framepos_t region_end = _region->last_frame();
1785
1786         if (end_frame > region_end) {
1787                 _region->set_length (end_frame - _region->position());
1788         }
1789
1790         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1791         MidiStreamView* const view = mtv->midi_view();
1792
1793         view->update_note_range(new_note->note());
1794
1795         _marked_for_selection.clear ();
1796         clear_selection ();
1797
1798         start_note_diff_command (_("step add"));
1799         note_diff_add_note (new_note, true, false);
1800         apply_diff();
1801
1802         // last_step_edit_note = new_note;
1803 }
1804
1805 void
1806 MidiRegionView::step_sustain (Evoral::MusicalTime beats)
1807 {
1808         change_note_lengths (false, false, beats, false, true);
1809 }
1810
1811 /** Add a new patch change flag to the canvas.
1812  * @param patch the patch change to add
1813  * @param the text to display in the flag
1814  * @param active_channel true to display the flag as on an active channel, false to grey it out for an inactive channel.
1815  */
1816 void
1817 MidiRegionView::add_canvas_patch_change (MidiModel::PatchChangePtr patch, const string& displaytext, bool /*active_channel*/)
1818 {
1819         framecnt_t region_frames = source_beats_to_region_frames (patch->time());
1820         const double x = trackview.editor().sample_to_pixel (region_frames);
1821
1822         double const height = midi_stream_view()->contents_height();
1823
1824         // CAIROCANVAS: active_channel info removed from PatcChange constructor
1825         // so we need to do something more sophisticated to keep its color
1826         // appearance (MidiPatchChangeFill/MidiPatchChangeInactiveChannelFill)
1827         // up to date.
1828
1829         boost::shared_ptr<PatchChange> patch_change = boost::shared_ptr<PatchChange>(
1830                 new PatchChange(*this, group,
1831                                 displaytext,
1832                                 height,
1833                                 x, 1.0,
1834                                 instrument_info(),
1835                                 patch));
1836
1837         if (patch_change->item().width() < _pixel_width) {
1838                 // Show unless patch change is beyond the region bounds
1839                 if (region_frames < 0 || region_frames >= _region->length()) {
1840                         patch_change->hide();
1841                 } else {
1842                         patch_change->show();
1843                 }
1844         } else {
1845                 patch_change->hide ();
1846         }
1847
1848         _patch_changes.push_back (patch_change);
1849 }
1850
1851 MIDI::Name::PatchPrimaryKey
1852 MidiRegionView::patch_change_to_patch_key (MidiModel::PatchChangePtr p)
1853 {
1854         return MIDI::Name::PatchPrimaryKey (p->program(), p->bank());
1855 }
1856
1857 /// Return true iff @p pc applies to the given time on the given channel.
1858 static bool
1859 patch_applies (const ARDOUR::MidiModel::constPatchChangePtr pc, double time, uint8_t channel)
1860 {
1861         return pc->time() <= time && pc->channel() == channel;
1862 }
1863
1864 void
1865 MidiRegionView::get_patch_key_at (Evoral::MusicalTime time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key) const
1866 {
1867         // The earliest event not before time
1868         MidiModel::PatchChanges::iterator i = _model->patch_change_lower_bound (time);
1869
1870         // Go backwards until we find the latest PC for this channel, or the start
1871         while (i != _model->patch_changes().begin() &&
1872                (i == _model->patch_changes().end() ||
1873                 !patch_applies(*i, time, channel))) {
1874                 --i;
1875         }
1876
1877         if (i != _model->patch_changes().end() && patch_applies(*i, time, channel)) {
1878                 key.bank_number    = (*i)->bank();
1879                 key.program_number = (*i)->program ();
1880         } else {
1881                 key.bank_number = key.program_number = 0;
1882         }
1883
1884         if (!key.is_sane()) {
1885                 error << string_compose(_("insane MIDI patch key %1:%2"),
1886                                         key.bank_number, key.program_number) << endmsg;
1887         }
1888 }
1889
1890 void
1891 MidiRegionView::change_patch_change (PatchChange& pc, const MIDI::Name::PatchPrimaryKey& new_patch)
1892 {
1893         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("alter patch change"));
1894
1895         if (pc.patch()->program() != new_patch.program_number) {
1896                 c->change_program (pc.patch (), new_patch.program_number);
1897         }
1898
1899         int const new_bank = new_patch.bank_number;
1900         if (pc.patch()->bank() != new_bank) {
1901                 c->change_bank (pc.patch (), new_bank);
1902         }
1903
1904         _model->apply_command (*trackview.session(), c);
1905
1906         _patch_changes.clear ();
1907         display_patch_changes ();
1908 }
1909
1910 void
1911 MidiRegionView::change_patch_change (MidiModel::PatchChangePtr old_change, const Evoral::PatchChange<Evoral::MusicalTime> & new_change)
1912 {
1913         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("alter patch change"));
1914
1915         if (old_change->time() != new_change.time()) {
1916                 c->change_time (old_change, new_change.time());
1917         }
1918
1919         if (old_change->channel() != new_change.channel()) {
1920                 c->change_channel (old_change, new_change.channel());
1921         }
1922
1923         if (old_change->program() != new_change.program()) {
1924                 c->change_program (old_change, new_change.program());
1925         }
1926
1927         if (old_change->bank() != new_change.bank()) {
1928                 c->change_bank (old_change, new_change.bank());
1929         }
1930
1931         _model->apply_command (*trackview.session(), c);
1932
1933         _patch_changes.clear ();
1934         display_patch_changes ();
1935 }
1936
1937 /** Add a patch change to the region.
1938  *  @param t Time in frames relative to region position
1939  *  @param patch Patch to add; time and channel are ignored (time is converted from t, and channel comes from
1940  *  MidiTimeAxisView::get_channel_for_add())
1941  */
1942 void
1943 MidiRegionView::add_patch_change (framecnt_t t, Evoral::PatchChange<Evoral::MusicalTime> const & patch)
1944 {
1945         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1946
1947         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("add patch change"));
1948         c->add (MidiModel::PatchChangePtr (
1949                         new Evoral::PatchChange<Evoral::MusicalTime> (
1950                                 absolute_frames_to_source_beats (_region->position() + t),
1951                                 mtv->get_channel_for_add(), patch.program(), patch.bank()
1952                                 )
1953                         )
1954                 );
1955
1956         _model->apply_command (*trackview.session(), c);
1957
1958         _patch_changes.clear ();
1959         display_patch_changes ();
1960 }
1961
1962 void
1963 MidiRegionView::move_patch_change (PatchChange& pc, Evoral::MusicalTime t)
1964 {
1965         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("move patch change"));
1966         c->change_time (pc.patch (), t);
1967         _model->apply_command (*trackview.session(), c);
1968
1969         _patch_changes.clear ();
1970         display_patch_changes ();
1971 }
1972
1973 void
1974 MidiRegionView::delete_patch_change (PatchChange* pc)
1975 {
1976         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("delete patch change"));
1977         c->remove (pc->patch ());
1978         _model->apply_command (*trackview.session(), c);
1979
1980         _patch_changes.clear ();
1981         display_patch_changes ();
1982 }
1983
1984 void
1985 MidiRegionView::previous_patch (PatchChange& patch)
1986 {
1987         if (patch.patch()->program() < 127) {
1988                 MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
1989                 key.program_number++;
1990                 change_patch_change (patch, key);
1991         }
1992 }
1993
1994 void
1995 MidiRegionView::next_patch (PatchChange& patch)
1996 {
1997         if (patch.patch()->program() > 0) {
1998                 MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
1999                 key.program_number--;
2000                 change_patch_change (patch, key);
2001         }
2002 }
2003
2004 void
2005 MidiRegionView::next_bank (PatchChange& patch)
2006 {
2007         if (patch.patch()->program() < 127) {
2008                 MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
2009                 if (key.bank_number > 0) {
2010                         key.bank_number--;
2011                         change_patch_change (patch, key);
2012                 }
2013         }
2014 }
2015
2016 void
2017 MidiRegionView::previous_bank (PatchChange& patch)
2018 {
2019         if (patch.patch()->program() > 0) {
2020                 MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key (patch.patch());
2021                 if (key.bank_number < 127) {
2022                         key.bank_number++;
2023                         change_patch_change (patch, key);
2024                 }
2025         }
2026 }
2027
2028 void
2029 MidiRegionView::maybe_remove_deleted_note_from_selection (NoteBase* cne)
2030 {
2031         if (_selection.empty()) {
2032                 return;
2033         }
2034
2035         _selection.erase (cne);
2036 }
2037
2038 void
2039 MidiRegionView::delete_selection()
2040 {
2041         if (_selection.empty()) {
2042                 return;
2043         }
2044
2045         start_note_diff_command (_("delete selection"));
2046
2047         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2048                 if ((*i)->selected()) {
2049                         _note_diff_command->remove((*i)->note());
2050                 }
2051         }
2052
2053         _selection.clear();
2054
2055         apply_diff ();
2056 }
2057
2058 void
2059 MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
2060 {
2061         start_note_diff_command (_("delete note"));
2062         _note_diff_command->remove (n);
2063         apply_diff ();
2064
2065         trackview.editor().verbose_cursor()->hide ();
2066 }
2067
2068 void
2069 MidiRegionView::clear_selection_except (NoteBase* ev, bool signal)
2070 {
2071         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2072                 if ((*i) != ev) {
2073                         Selection::iterator tmp = i;
2074                         ++tmp;
2075
2076                         (*i)->set_selected (false);
2077                         (*i)->hide_velocity ();
2078                         _selection.erase (i);
2079
2080                         i = tmp;
2081                 } else {
2082                         ++i;
2083                 }
2084         }
2085
2086         /* this does not change the status of this regionview w.r.t the editor
2087            selection.
2088         */
2089
2090         if (signal) {
2091                 SelectionCleared (this); /* EMIT SIGNAL */
2092         }
2093 }
2094
2095 void
2096 MidiRegionView::unique_select(NoteBase* ev)
2097 {
2098         clear_selection_except (ev);
2099
2100         /* don't bother with checking to see if we should remove this
2101            regionview from the editor selection, since we're about to add
2102            another note, and thus put/keep this regionview in the editor
2103            selection anyway.
2104         */
2105
2106         if (!ev->selected()) {
2107                 add_to_selection (ev);
2108         }
2109 }
2110
2111 void
2112 MidiRegionView::select_all_notes ()
2113 {
2114         clear_selection ();
2115
2116         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2117                 add_to_selection (*i);
2118         }
2119 }
2120
2121 void
2122 MidiRegionView::select_range (framepos_t start, framepos_t end)
2123 {
2124         clear_selection ();
2125
2126         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2127                 framepos_t t = source_beats_to_absolute_frames((*i)->note()->time());
2128                 if (t >= start && t <= end) {
2129                         add_to_selection (*i);
2130                 }
2131         }
2132 }
2133
2134 void
2135 MidiRegionView::invert_selection ()
2136 {
2137         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2138                 if ((*i)->selected()) {
2139                         remove_from_selection(*i);
2140                 } else {
2141                         add_to_selection (*i);
2142                 }
2143         }
2144 }
2145
2146 void
2147 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
2148 {
2149         bool have_selection = !_selection.empty();
2150         uint8_t low_note = 127;
2151         uint8_t high_note = 0;
2152         MidiModel::Notes& notes (_model->notes());
2153         _optimization_iterator = _events.begin();
2154
2155         if (extend && !have_selection) {
2156                 extend = false;
2157         }
2158
2159         /* scan existing selection to get note range */
2160
2161         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2162                 if ((*i)->note()->note() < low_note) {
2163                         low_note = (*i)->note()->note();
2164                 }
2165                 if ((*i)->note()->note() > high_note) {
2166                         high_note = (*i)->note()->note();
2167                 }
2168         }
2169
2170         if (!add) {
2171                 clear_selection ();
2172
2173                 if (!extend && (low_note == high_note) && (high_note == notenum)) {
2174                         /* only note previously selected is the one we are
2175                          * reselecting. treat this as cancelling the selection.
2176                          */
2177                         return;
2178                 }
2179         }
2180
2181         if (extend) {
2182                 low_note = min (low_note, notenum);
2183                 high_note = max (high_note, notenum);
2184         }
2185
2186         _no_sound_notes = true;
2187
2188         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
2189
2190                 boost::shared_ptr<NoteType> note (*n);
2191                 NoteBase* cne;
2192                 bool select = false;
2193
2194                 if (((1 << note->channel()) & channel_mask) != 0) {
2195                         if (extend) {
2196                                 if ((note->note() >= low_note && note->note() <= high_note)) {
2197                                         select = true;
2198                                 }
2199                         } else if (note->note() == notenum) {
2200                                 select = true;
2201                         }
2202                 }
2203
2204                 if (select) {
2205                         if ((cne = find_canvas_note (note)) != 0) {
2206                                 // extend is false because we've taken care of it,
2207                                 // since it extends by time range, not pitch.
2208                                 note_selected (cne, add, false);
2209                         }
2210                 }
2211
2212                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
2213
2214         }
2215
2216         _no_sound_notes = false;
2217 }
2218
2219 void
2220 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
2221 {
2222         MidiModel::Notes& notes (_model->notes());
2223         _optimization_iterator = _events.begin();
2224
2225         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
2226
2227                 boost::shared_ptr<NoteType> note (*n);
2228                 NoteBase* cne;
2229
2230                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
2231                         if ((cne = find_canvas_note (note)) != 0) {
2232                                 if (cne->selected()) {
2233                                         note_deselected (cne);
2234                                 } else {
2235                                         note_selected (cne, true, false);
2236                                 }
2237                         }
2238                 }
2239         }
2240 }
2241
2242 void
2243 MidiRegionView::note_selected (NoteBase* ev, bool add, bool extend)
2244 {
2245         if (!add) {
2246                 clear_selection_except (ev);
2247                 if (!_selection.empty()) {
2248                         PublicEditor& editor (trackview.editor());
2249                         editor.get_selection().add (this);
2250                 }
2251         }
2252
2253         if (!extend) {
2254
2255                 if (!ev->selected()) {
2256                         add_to_selection (ev);
2257                 }
2258
2259         } else {
2260                 /* find end of latest note selected, select all between that and the start of "ev" */
2261
2262                 Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
2263                 Evoral::MusicalTime latest   = Evoral::MusicalTime();
2264
2265                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2266                         if ((*i)->note()->end_time() > latest) {
2267                                 latest = (*i)->note()->end_time();
2268                         }
2269                         if ((*i)->note()->time() < earliest) {
2270                                 earliest = (*i)->note()->time();
2271                         }
2272                 }
2273
2274                 if (ev->note()->end_time() > latest) {
2275                         latest = ev->note()->end_time();
2276                 }
2277
2278                 if (ev->note()->time() < earliest) {
2279                         earliest = ev->note()->time();
2280                 }
2281
2282                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2283
2284                         /* find notes entirely within OR spanning the earliest..latest range */
2285
2286                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
2287                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
2288                                 add_to_selection (*i);
2289                         }
2290
2291                 }
2292         }
2293 }
2294
2295 void
2296 MidiRegionView::note_deselected(NoteBase* ev)
2297 {
2298         remove_from_selection (ev);
2299 }
2300
2301 void
2302 MidiRegionView::update_drag_selection(framepos_t start, framepos_t end, double gy0, double gy1, bool extend)
2303 {
2304         PublicEditor& editor = trackview.editor();
2305
2306         // Convert to local coordinates
2307         const framepos_t p  = _region->position();
2308         const double     y  = midi_view()->y_position();
2309         const double     x0 = editor.sample_to_pixel(max((framepos_t)0, start - p));
2310         const double     x1 = editor.sample_to_pixel(max((framepos_t)0, end - p));
2311         const double     y0 = max(0.0, gy0 - y);
2312         const double     y1 = max(0.0, gy1 - y);
2313
2314         // TODO: Make this faster by storing the last updated selection rect, and only
2315         // adjusting things that are in the area that appears/disappeared.
2316         // We probably need a tree to be able to find events in O(log(n)) time.
2317
2318         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2319                 if ((*i)->x0() < x1 && (*i)->x1() > x0 && (*i)->y0() < y1 && (*i)->y1() > y0) {
2320                         // Rectangles intersect
2321                         if (!(*i)->selected()) {
2322                                 add_to_selection (*i);
2323                         }
2324                 } else if ((*i)->selected() && !extend) {
2325                         // Rectangles do not intersect
2326                         remove_from_selection (*i);
2327                 }
2328         }
2329
2330         typedef RouteTimeAxisView::AutomationTracks ATracks;
2331         typedef std::list<Selectable*>              Selectables;
2332
2333         /* Add control points to selection. */
2334         const ATracks& atracks = midi_view()->automation_tracks();
2335         Selectables    selectables;
2336         editor.get_selection().clear_points();
2337         for (ATracks::const_iterator a = atracks.begin(); a != atracks.end(); ++a) {
2338                 a->second->get_selectables(start, end, gy0, gy1, selectables);
2339                 for (Selectables::const_iterator s = selectables.begin(); s != selectables.end(); ++s) {
2340                         ControlPoint* cp = dynamic_cast<ControlPoint*>(*s);
2341                         if (cp) {
2342                                 editor.get_selection().add(cp);
2343                         }
2344                 }
2345                 a->second->set_selected_points(editor.get_selection().points);
2346         }
2347 }
2348
2349 void
2350 MidiRegionView::update_vertical_drag_selection (double y1, double y2, bool extend)
2351 {
2352         if (y1 > y2) {
2353                 swap (y1, y2);
2354         }
2355
2356         // TODO: Make this faster by storing the last updated selection rect, and only
2357         // adjusting things that are in the area that appears/disappeared.
2358         // We probably need a tree to be able to find events in O(log(n)) time.
2359
2360         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2361                 if (((*i)->y1() >= y1 && (*i)->y1() <= y2)) {
2362                         // within y- (note-) range
2363                         if (!(*i)->selected()) {
2364                                 add_to_selection (*i);
2365                         }
2366                 } else if ((*i)->selected() && !extend) {
2367                         remove_from_selection (*i);
2368                 }
2369         }
2370 }
2371
2372 void
2373 MidiRegionView::remove_from_selection (NoteBase* ev)
2374 {
2375         Selection::iterator i = _selection.find (ev);
2376
2377         if (i != _selection.end()) {
2378                 _selection.erase (i);
2379         }
2380
2381         ev->set_selected (false);
2382         ev->hide_velocity ();
2383
2384         if (_selection.empty()) {
2385                 PublicEditor& editor (trackview.editor());
2386                 editor.get_selection().remove (this);
2387         }
2388 }
2389
2390 void
2391 MidiRegionView::add_to_selection (NoteBase* ev)
2392 {
2393         bool add_mrv_selection = false;
2394
2395         if (_selection.empty()) {
2396                 add_mrv_selection = true;
2397         }
2398
2399         if (_selection.insert (ev).second) {
2400                 ev->set_selected (true);
2401                 start_playing_midi_note ((ev)->note());
2402         }
2403
2404         if (add_mrv_selection) {
2405                 PublicEditor& editor (trackview.editor());
2406                 editor.get_selection().add (this);
2407         }
2408 }
2409
2410 void
2411 MidiRegionView::move_selection(double dx, double dy, double cumulative_dy)
2412 {
2413         typedef vector<boost::shared_ptr<NoteType> > PossibleChord;
2414         PossibleChord to_play;
2415         Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
2416
2417         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2418                 if ((*i)->note()->time() < earliest) {
2419                         earliest = (*i)->note()->time();
2420                 }
2421         }
2422
2423         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2424                 if ((*i)->note()->time() == earliest) {
2425                         to_play.push_back ((*i)->note());
2426                 }
2427                 (*i)->move_event(dx, dy);
2428         }
2429
2430         if (dy && !_selection.empty() && !_no_sound_notes && Config->get_sound_midi_notes()) {
2431
2432                 if (to_play.size() > 1) {
2433
2434                         PossibleChord shifted;
2435
2436                         for (PossibleChord::iterator n = to_play.begin(); n != to_play.end(); ++n) {
2437                                 boost::shared_ptr<NoteType> moved_note (new NoteType (**n));
2438                                 moved_note->set_note (moved_note->note() + cumulative_dy);
2439                                 shifted.push_back (moved_note);
2440                         }
2441
2442                         start_playing_midi_chord (shifted);
2443
2444                 } else if (!to_play.empty()) {
2445
2446                         boost::shared_ptr<NoteType> moved_note (new NoteType (*to_play.front()));
2447                         moved_note->set_note (moved_note->note() + cumulative_dy);
2448                         start_playing_midi_note (moved_note);
2449                 }
2450         }
2451 }
2452
2453 void
2454 MidiRegionView::note_dropped(NoteBase *, frameoffset_t dt, int8_t dnote)
2455 {
2456         uint8_t lowest_note_in_selection  = 127;
2457         uint8_t highest_note_in_selection = 0;
2458         uint8_t highest_note_difference   = 0;
2459
2460         // find highest and lowest notes first
2461
2462         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2463                 uint8_t pitch = (*i)->note()->note();
2464                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
2465                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
2466         }
2467
2468         /*
2469           cerr << "dnote: " << (int) dnote << endl;
2470           cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
2471           << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
2472           cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
2473           << int(highest_note_in_selection) << endl;
2474           cerr << "selection size: " << _selection.size() << endl;
2475           cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
2476         */
2477
2478         // Make sure the note pitch does not exceed the MIDI standard range
2479         if (highest_note_in_selection + dnote > 127) {
2480                 highest_note_difference = highest_note_in_selection - 127;
2481         }
2482
2483         start_note_diff_command (_("move notes"));
2484
2485         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
2486
2487                 framepos_t new_frames = source_beats_to_absolute_frames ((*i)->note()->time()) + dt;
2488                 Evoral::MusicalTime new_time = absolute_frames_to_source_beats (new_frames);
2489
2490                 if (new_time < 0) {
2491                         continue;
2492                 }
2493
2494                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::StartTime, new_time);
2495
2496                 uint8_t original_pitch = (*i)->note()->note();
2497                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
2498
2499                 // keep notes in standard midi range
2500                 clamp_to_0_127(new_pitch);
2501
2502                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
2503                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
2504
2505                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::NoteNumber, new_pitch);
2506         }
2507
2508         apply_diff();
2509
2510         // care about notes being moved beyond the upper/lower bounds on the canvas
2511         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
2512             highest_note_in_selection > midi_stream_view()->highest_note()) {
2513                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
2514         }
2515 }
2516
2517 /** @param x Pixel relative to the region position.
2518  *  @return Snapped frame relative to the region position.
2519  */
2520 framepos_t
2521 MidiRegionView::snap_pixel_to_sample(double x)
2522 {
2523         PublicEditor& editor (trackview.editor());
2524         return snap_frame_to_frame (editor.pixel_to_sample (x));
2525 }
2526
2527 /** @param x Pixel relative to the region position.
2528  *  @return Snapped pixel relative to the region position.
2529  */
2530 double
2531 MidiRegionView::snap_to_pixel(double x)
2532 {
2533         return (double) trackview.editor().sample_to_pixel(snap_pixel_to_sample(x));
2534 }
2535
2536 double
2537 MidiRegionView::get_position_pixels()
2538 {
2539         framepos_t region_frame = get_position();
2540         return trackview.editor().sample_to_pixel(region_frame);
2541 }
2542
2543 double
2544 MidiRegionView::get_end_position_pixels()
2545 {
2546         framepos_t frame = get_position() + get_duration ();
2547         return trackview.editor().sample_to_pixel(frame);
2548 }
2549
2550 framepos_t
2551 MidiRegionView::source_beats_to_absolute_frames(Evoral::MusicalTime beats) const
2552 {
2553         /* the time converter will return the frame corresponding to `beats'
2554            relative to the start of the source. The start of the source
2555            is an implied position given by region->position - region->start
2556         */
2557         const framepos_t source_start = _region->position() - _region->start();
2558         return  source_start +  _source_relative_time_converter.to (beats);
2559 }
2560
2561 Evoral::MusicalTime
2562 MidiRegionView::absolute_frames_to_source_beats(framepos_t frames) const
2563 {
2564         /* the `frames' argument needs to be converted into a frame count
2565            relative to the start of the source before being passed in to the
2566            converter.
2567         */
2568         const framepos_t source_start = _region->position() - _region->start();
2569         return  _source_relative_time_converter.from (frames - source_start);
2570 }
2571
2572 framepos_t
2573 MidiRegionView::region_beats_to_region_frames(Evoral::MusicalTime beats) const
2574 {
2575         return _region_relative_time_converter.to(beats);
2576 }
2577
2578 Evoral::MusicalTime
2579 MidiRegionView::region_frames_to_region_beats(framepos_t frames) const
2580 {
2581         return _region_relative_time_converter.from(frames);
2582 }
2583
2584 void
2585 MidiRegionView::begin_resizing (bool /*at_front*/)
2586 {
2587         _resize_data.clear();
2588
2589         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2590                 Note *note = dynamic_cast<Note*> (*i);
2591
2592                 // only insert CanvasNotes into the map
2593                 if (note) {
2594                         NoteResizeData *resize_data = new NoteResizeData();
2595                         resize_data->note = note;
2596
2597                         // create a new SimpleRect from the note which will be the resize preview
2598                         ArdourCanvas::Rectangle *resize_rect = new ArdourCanvas::Rectangle (_note_group,
2599                                                                                             ArdourCanvas::Rect (note->x0(), note->y0(), note->x0(), note->y1()));
2600
2601                         // calculate the colors: get the color settings
2602                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
2603                                 ARDOUR_UI::config()->get_MidiNoteSelected(),
2604                                 128);
2605
2606                         // make the resize preview notes more transparent and bright
2607                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
2608
2609                         // calculate color based on note velocity
2610                         resize_rect->set_fill_color (UINT_INTERPOLATE(
2611                                 NoteBase::meter_style_fill_color(note->note()->velocity(), note->selected()),
2612                                 fill_color,
2613                                 0.85));
2614
2615                         resize_rect->set_outline_color (NoteBase::calculate_outline (
2616                                                                 ARDOUR_UI::config()->get_MidiNoteSelected()));
2617
2618                         resize_data->resize_rect = resize_rect;
2619                         _resize_data.push_back(resize_data);
2620                 }
2621         }
2622 }
2623
2624 /** Update resizing notes while user drags.
2625  * @param primary `primary' note for the drag; ie the one that is used as the reference in non-relative mode.
2626  * @param at_front which end of the note (true == note on, false == note off)
2627  * @param delta_x change in mouse position since the start of the drag
2628  * @param relative true if relative resizing is taking place, false if absolute resizing.  This only makes
2629  * a difference when multiple notes are being resized; in relative mode, each note's length is changed by the
2630  * amount of the drag.  In non-relative mode, all selected notes are set to have the same start or end point
2631  * as the \a primary note.
2632  */
2633 void
2634 MidiRegionView::update_resizing (NoteBase* primary, bool at_front, double delta_x, bool relative)
2635 {
2636         bool cursor_set = false;
2637
2638         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2639                 ArdourCanvas::Rectangle* resize_rect = (*i)->resize_rect;
2640                 Note* canvas_note = (*i)->note;
2641                 double current_x;
2642
2643                 if (at_front) {
2644                         if (relative) {
2645                                 current_x = canvas_note->x0() + delta_x;
2646                         } else {
2647                                 current_x = primary->x0() + delta_x;
2648                         }
2649                 } else {
2650                         if (relative) {
2651                                 current_x = canvas_note->x1() + delta_x;
2652                         } else {
2653                                 current_x = primary->x1() + delta_x;
2654                         }
2655                 }
2656
2657                 if (current_x < 0) {
2658                         // This works even with snapping because RegionView::snap_frame_to_frame()
2659                         // snaps forward if the snapped sample is before the beginning of the region
2660                         current_x = 0;
2661                 }
2662                 if (current_x > trackview.editor().sample_to_pixel(_region->length())) {
2663                         current_x = trackview.editor().sample_to_pixel(_region->length());
2664                 }
2665
2666                 if (at_front) {
2667                         resize_rect->set_x0 (snap_to_pixel(current_x));
2668                         resize_rect->set_x1 (canvas_note->x1());
2669                 } else {
2670                         resize_rect->set_x1 (snap_to_pixel(current_x));
2671                         resize_rect->set_x0 (canvas_note->x0());
2672                 }
2673
2674                 if (!cursor_set) {
2675                         double beats;
2676
2677                         beats = snap_pixel_to_sample (current_x);
2678                         beats = region_frames_to_region_beats (beats);
2679
2680                         double len;
2681
2682                         if (at_front) {
2683                                 if (beats < canvas_note->note()->end_time()) {
2684                                         len = canvas_note->note()->time() - beats;
2685                                         len += canvas_note->note()->length();
2686                                 } else {
2687                                         len = 0;
2688                                 }
2689                         } else {
2690                                 if (beats >= canvas_note->note()->time()) {
2691                                         len = beats - canvas_note->note()->time();
2692                                 } else {
2693                                         len = 0;
2694                                 }
2695                         }
2696
2697                         char buf[16];
2698                         snprintf (buf, sizeof (buf), "%.3g beats", len);
2699                         show_verbose_cursor (buf, 0, 0);
2700
2701                         cursor_set = true;
2702                 }
2703
2704         }
2705 }
2706
2707
2708 /** Finish resizing notes when the user releases the mouse button.
2709  *  Parameters the same as for \a update_resizing().
2710  */
2711 void
2712 MidiRegionView::commit_resizing (NoteBase* primary, bool at_front, double delta_x, bool relative)
2713 {
2714         start_note_diff_command (_("resize notes"));
2715
2716         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2717                 Note*  canvas_note = (*i)->note;
2718                 ArdourCanvas::Rectangle*  resize_rect = (*i)->resize_rect;
2719
2720                 /* Get the new x position for this resize, which is in pixels relative
2721                  * to the region position.
2722                  */
2723
2724                 double current_x;
2725
2726                 if (at_front) {
2727                         if (relative) {
2728                                 current_x = canvas_note->x0() + delta_x;
2729                         } else {
2730                                 current_x = primary->x0() + delta_x;
2731                         }
2732                 } else {
2733                         if (relative) {
2734                                 current_x = canvas_note->x1() + delta_x;
2735                         } else {
2736                                 current_x = primary->x1() + delta_x;
2737                         }
2738                 }
2739
2740                 if (current_x < 0) {
2741                         current_x = 0;
2742                 }
2743                 if (current_x > trackview.editor().sample_to_pixel(_region->length())) {
2744                         current_x = trackview.editor().sample_to_pixel(_region->length());
2745                 }
2746
2747                 /* Convert that to a frame within the source */
2748                 current_x = snap_pixel_to_sample (current_x) + _region->start ();
2749
2750                 /* and then to beats */
2751                 current_x = region_frames_to_region_beats (current_x);
2752
2753                 if (at_front && current_x < canvas_note->note()->end_time()) {
2754                         note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::StartTime, current_x);
2755
2756                         double len = canvas_note->note()->time() - current_x;
2757                         len += canvas_note->note()->length();
2758
2759                         if (len > 0) {
2760                                 /* XXX convert to beats */
2761                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2762                         }
2763                 }
2764
2765                 if (!at_front) {
2766                         double len = current_x - canvas_note->note()->time();
2767
2768                         if (len > 0) {
2769                                 /* XXX convert to beats */
2770                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2771                         }
2772                 }
2773
2774                 delete resize_rect;
2775                 delete (*i);
2776         }
2777
2778         _resize_data.clear();
2779         apply_diff();
2780 }
2781
2782 void
2783 MidiRegionView::abort_resizing ()
2784 {
2785         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2786                 delete (*i)->resize_rect;
2787                 delete *i;
2788         }
2789
2790         _resize_data.clear ();
2791 }
2792
2793 void
2794 MidiRegionView::change_note_velocity(NoteBase* event, int8_t velocity, bool relative)
2795 {
2796         uint8_t new_velocity;
2797
2798         if (relative) {
2799                 new_velocity = event->note()->velocity() + velocity;
2800                 clamp_to_0_127(new_velocity);
2801         } else {
2802                 new_velocity = velocity;
2803         }
2804
2805         event->set_selected (event->selected()); // change color
2806
2807         note_diff_add_change (event, MidiModel::NoteDiffCommand::Velocity, new_velocity);
2808 }
2809
2810 void
2811 MidiRegionView::change_note_note (NoteBase* event, int8_t note, bool relative)
2812 {
2813         uint8_t new_note;
2814
2815         if (relative) {
2816                 new_note = event->note()->note() + note;
2817         } else {
2818                 new_note = note;
2819         }
2820
2821         clamp_to_0_127 (new_note);
2822         note_diff_add_change (event, MidiModel::NoteDiffCommand::NoteNumber, new_note);
2823 }
2824
2825 void
2826 MidiRegionView::trim_note (NoteBase* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
2827 {
2828         bool change_start = false;
2829         bool change_length = false;
2830         Evoral::MusicalTime new_start;
2831         Evoral::MusicalTime new_length;
2832
2833         /* NOTE: the semantics of the two delta arguments are slightly subtle:
2834
2835            front_delta: if positive - move the start of the note later in time (shortening it)
2836            if negative - move the start of the note earlier in time (lengthening it)
2837
2838            end_delta:   if positive - move the end of the note later in time (lengthening it)
2839            if negative - move the end of the note earlier in time (shortening it)
2840         */
2841
2842         if (front_delta) {
2843                 if (front_delta < 0) {
2844
2845                         if (event->note()->time() < -front_delta) {
2846                                 new_start = Evoral::MusicalTime();
2847                         } else {
2848                                 new_start = event->note()->time() + front_delta; // moves earlier
2849                         }
2850
2851                         /* start moved toward zero, so move the end point out to where it used to be.
2852                            Note that front_delta is negative, so this increases the length.
2853                         */
2854
2855                         new_length = event->note()->length() - front_delta;
2856                         change_start = true;
2857                         change_length = true;
2858
2859                 } else {
2860
2861                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2862
2863                         if (new_pos < event->note()->end_time()) {
2864                                 new_start = event->note()->time() + front_delta;
2865                                 /* start moved toward the end, so move the end point back to where it used to be */
2866                                 new_length = event->note()->length() - front_delta;
2867                                 change_start = true;
2868                                 change_length = true;
2869                         }
2870                 }
2871
2872         }
2873
2874         if (end_delta) {
2875                 bool can_change = true;
2876                 if (end_delta < 0) {
2877                         if (event->note()->length() < -end_delta) {
2878                                 can_change = false;
2879                         }
2880                 }
2881
2882                 if (can_change) {
2883                         new_length = event->note()->length() + end_delta;
2884                         change_length = true;
2885                 }
2886         }
2887
2888         if (change_start) {
2889                 note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_start);
2890         }
2891
2892         if (change_length) {
2893                 note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, new_length);
2894         }
2895 }
2896
2897 void
2898 MidiRegionView::change_note_channel (NoteBase* event, int8_t chn, bool relative)
2899 {
2900         uint8_t new_channel;
2901
2902         if (relative) {
2903                 if (chn < 0.0) {
2904                         if (event->note()->channel() < -chn) {
2905                                 new_channel = 0;
2906                         } else {
2907                                 new_channel = event->note()->channel() + chn;
2908                         }
2909                 } else {
2910                         new_channel = event->note()->channel() + chn;
2911                 }
2912         } else {
2913                 new_channel = (uint8_t) chn;
2914         }
2915
2916         note_diff_add_change (event, MidiModel::NoteDiffCommand::Channel, new_channel);
2917 }
2918
2919 void
2920 MidiRegionView::change_note_time (NoteBase* event, Evoral::MusicalTime delta, bool relative)
2921 {
2922         Evoral::MusicalTime new_time;
2923
2924         if (relative) {
2925                 if (delta < 0.0) {
2926                         if (event->note()->time() < -delta) {
2927                                 new_time = Evoral::MusicalTime();
2928                         } else {
2929                                 new_time = event->note()->time() + delta;
2930                         }
2931                 } else {
2932                         new_time = event->note()->time() + delta;
2933                 }
2934         } else {
2935                 new_time = delta;
2936         }
2937
2938         note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_time);
2939 }
2940
2941 void
2942 MidiRegionView::change_note_length (NoteBase* event, Evoral::MusicalTime t)
2943 {
2944         note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, t);
2945 }
2946
2947 void
2948 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush, bool all_together)
2949 {
2950         int8_t delta;
2951         int8_t value = 0;
2952
2953         if (_selection.empty()) {
2954                 return;
2955         }
2956
2957         if (fine) {
2958                 delta = 1;
2959         } else {
2960                 delta = 10;
2961         }
2962
2963         if (!up) {
2964                 delta = -delta;
2965         }
2966
2967         if (!allow_smush) {
2968                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2969                         if ((*i)->note()->velocity() < -delta || (*i)->note()->velocity() + delta > 127) {
2970                                 goto cursor_label;
2971                         }
2972                 }
2973         }
2974
2975         start_note_diff_command (_("change velocities"));
2976
2977         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2978                 Selection::iterator next = i;
2979                 ++next;
2980
2981                 if (all_together) {
2982                         if (i == _selection.begin()) {
2983                                 change_note_velocity (*i, delta, true);
2984                                 value = (*i)->note()->velocity() + delta;
2985                         } else {
2986                                 change_note_velocity (*i, value, false);
2987                         }
2988
2989                 } else {
2990                         change_note_velocity (*i, delta, true);
2991                 }
2992
2993                 i = next;
2994         }
2995
2996         apply_diff();
2997
2998   cursor_label:
2999         if (!_selection.empty()) {
3000                 char buf[24];
3001                 snprintf (buf, sizeof (buf), "Vel %d",
3002                           (int) (*_selection.begin())->note()->velocity());
3003                 show_verbose_cursor (buf, 10, 10);
3004         }
3005 }
3006
3007
3008 void
3009 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
3010 {
3011         if (_selection.empty()) {
3012                 return;
3013         }
3014
3015         int8_t delta;
3016
3017         if (fine) {
3018                 delta = 1;
3019         } else {
3020                 delta = 12;
3021         }
3022
3023         if (!up) {
3024                 delta = -delta;
3025         }
3026
3027         if (!allow_smush) {
3028                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3029                         if (!up) {
3030                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
3031                                         return;
3032                                 }
3033                         } else {
3034                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
3035                                         return;
3036                                 }
3037                         }
3038                 }
3039         }
3040
3041         start_note_diff_command (_("transpose"));
3042
3043         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
3044                 Selection::iterator next = i;
3045                 ++next;
3046                 change_note_note (*i, delta, true);
3047                 i = next;
3048         }
3049
3050         apply_diff ();
3051 }
3052
3053 void
3054 MidiRegionView::change_note_lengths (bool fine, bool shorter, Evoral::MusicalTime delta, bool start, bool end)
3055 {
3056         if (!delta) {
3057                 if (fine) {
3058                         delta = Evoral::MusicalTime(1.0/128.0);
3059                 } else {
3060                         /* grab the current grid distance */
3061                         delta = get_grid_beats(_region->position());
3062                 }
3063         }
3064
3065         if (shorter) {
3066                 delta = -delta;
3067         }
3068
3069         start_note_diff_command (_("change note lengths"));
3070
3071         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
3072                 Selection::iterator next = i;
3073                 ++next;
3074
3075                 /* note the negation of the delta for start */
3076
3077                 trim_note (*i,
3078                            (start ? -delta : Evoral::MusicalTime()),
3079                            (end   ? delta  : Evoral::MusicalTime()));
3080                 i = next;
3081         }
3082
3083         apply_diff ();
3084
3085 }
3086
3087 void
3088 MidiRegionView::nudge_notes (bool forward)
3089 {
3090         if (_selection.empty()) {
3091                 return;
3092         }
3093
3094         /* pick a note as the point along the timeline to get the nudge distance.
3095            its not necessarily the earliest note, so we may want to pull the notes out
3096            into a vector and sort before using the first one.
3097         */
3098
3099         framepos_t ref_point = source_beats_to_absolute_frames ((*(_selection.begin()))->note()->time());
3100         framepos_t unused;
3101         framecnt_t distance;
3102
3103         if (trackview.editor().snap_mode() == Editing::SnapOff) {
3104
3105                 /* grid is off - use nudge distance */
3106
3107                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
3108
3109         } else {
3110
3111                 /* use grid */
3112
3113                 framepos_t next_pos = ref_point;
3114
3115                 if (forward) {
3116                         if (max_framepos - 1 < next_pos) {
3117                                 next_pos += 1;
3118                         }
3119                 } else {
3120                         if (next_pos == 0) {
3121                                 return;
3122                         }
3123                         next_pos -= 1;
3124                 }
3125
3126                 trackview.editor().snap_to (next_pos, (forward ? RoundUpAlways : RoundDownAlways), false);
3127                 distance = ref_point - next_pos;
3128         }
3129
3130         if (distance == 0) {
3131                 return;
3132         }
3133
3134         Evoral::MusicalTime delta = region_frames_to_region_beats (fabs ((double)distance));
3135
3136         if (!forward) {
3137                 delta = -delta;
3138         }
3139
3140         start_note_diff_command (_("nudge"));
3141
3142         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
3143                 Selection::iterator next = i;
3144                 ++next;
3145                 change_note_time (*i, delta, true);
3146                 i = next;
3147         }
3148
3149         apply_diff ();
3150 }
3151
3152 void
3153 MidiRegionView::change_channel(uint8_t channel)
3154 {
3155         start_note_diff_command(_("change channel"));
3156         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3157                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::Channel, channel);
3158         }
3159
3160         apply_diff();
3161 }
3162
3163
3164 void
3165 MidiRegionView::note_entered(NoteBase* ev)
3166 {
3167         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
3168
3169         pre_note_enter_cursor = editor->get_canvas_cursor ();
3170
3171         if (_mouse_state == SelectTouchDragging) {
3172                 note_selected (ev, true);
3173         }
3174
3175         show_verbose_cursor (ev->note ());
3176 }
3177
3178 void
3179 MidiRegionView::note_left (NoteBase*)
3180 {
3181         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
3182
3183         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3184                 (*i)->hide_velocity ();
3185         }
3186
3187         editor->verbose_cursor()->hide ();
3188
3189         if (pre_note_enter_cursor) {
3190                 editor->set_canvas_cursor (pre_note_enter_cursor);
3191                 pre_note_enter_cursor = 0;
3192         }
3193 }
3194
3195 void
3196 MidiRegionView::patch_entered (PatchChange* p)
3197 {
3198         ostringstream s;
3199         /* XXX should get patch name if we can */
3200         s << _("Bank ") << (p->patch()->bank() + MIDI_BP_ZERO) << '\n'
3201           << _("Program ") << ((int) p->patch()->program()) + MIDI_BP_ZERO << '\n'
3202           << _("Channel ") << ((int) p->patch()->channel() + 1);
3203         show_verbose_cursor (s.str(), 10, 20);
3204         p->item().grab_focus();
3205 }
3206
3207 void
3208 MidiRegionView::patch_left (PatchChange *)
3209 {
3210         trackview.editor().verbose_cursor()->hide ();
3211         /* focus will transfer back via the enter-notify event sent to this
3212          * midi region view.
3213          */
3214 }
3215
3216 void
3217 MidiRegionView::sysex_entered (SysEx* p)
3218 {
3219         ostringstream s;
3220         // CAIROCANVAS
3221         // need a way to extract text from p->_flag->_text
3222         // s << p->text();
3223         // show_verbose_cursor (s.str(), 10, 20);
3224         p->item().grab_focus();
3225 }
3226
3227 void
3228 MidiRegionView::sysex_left (SysEx *)
3229 {
3230         trackview.editor().verbose_cursor()->hide ();
3231         /* focus will transfer back via the enter-notify event sent to this
3232          * midi region view.
3233          */
3234 }
3235
3236 void
3237 MidiRegionView::note_mouse_position (float x_fraction, float /*y_fraction*/, bool can_set_cursor)
3238 {
3239         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
3240         Editing::MouseMode mm = editor->current_mouse_mode();
3241         bool trimmable = (mm == MouseObject || mm == MouseTimeFX || mm == MouseDraw);
3242
3243         if (can_set_cursor) {
3244                 if (trimmable && x_fraction > 0.0 && x_fraction < 0.2) {
3245                         editor->set_canvas_cursor (editor->cursors()->left_side_trim);
3246                 } else if (trimmable && x_fraction >= 0.8 && x_fraction < 1.0) {
3247                         editor->set_canvas_cursor (editor->cursors()->right_side_trim);
3248                 } else if (pre_note_enter_cursor) {
3249                         editor->set_canvas_cursor (pre_note_enter_cursor);
3250                 }
3251         }
3252 }
3253
3254 void
3255 MidiRegionView::set_frame_color()
3256 {
3257         uint32_t f;
3258
3259         TimeAxisViewItem::set_frame_color ();
3260
3261         if (!frame) {
3262                 return;
3263         }
3264
3265         if (_selected) {
3266                 f = ARDOUR_UI::config()->get_SelectedFrameBase();
3267         } else if (high_enough_for_name) {
3268                 f= ARDOUR_UI::config()->get_MidiFrameBase();
3269         } else {
3270                 f = fill_color;
3271         }
3272
3273         if (!rect_visible) {
3274                 f = UINT_RGBA_CHANGE_A (f, 80);
3275         }
3276
3277         frame->set_fill_color (f);
3278 }
3279
3280 void
3281 MidiRegionView::midi_channel_mode_changed ()
3282 {
3283         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3284         uint16_t mask = mtv->midi_track()->get_playback_channel_mask();
3285         ChannelMode mode = mtv->midi_track()->get_playback_channel_mode ();
3286
3287         if (mode == ForceChannel) {
3288                 mask = 0xFFFF; // Show all notes as active (below)
3289         }
3290
3291         // Update notes for selection
3292         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3293                 (*i)->on_channel_selection_change (mask);
3294         }
3295
3296         _patch_changes.clear ();
3297         display_patch_changes ();
3298 }
3299
3300 void
3301 MidiRegionView::instrument_settings_changed ()
3302 {
3303         redisplay_model();
3304 }
3305
3306 void
3307 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
3308 {
3309         if (_selection.empty()) {
3310                 return;
3311         }
3312
3313         PublicEditor& editor (trackview.editor());
3314
3315         switch (op) {
3316         case Delete:
3317                 /* XXX what to do ? */
3318                 break;
3319         case Cut:
3320         case Copy:
3321                 editor.get_cut_buffer().add (selection_as_cut_buffer());
3322                 break;
3323         default:
3324                 break;
3325         }
3326
3327         if (op != Copy) {
3328
3329                 start_note_diff_command();
3330
3331                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3332                         switch (op) {
3333                         case Copy:
3334                                 break;
3335                         case Delete:
3336                         case Cut:
3337                         case Clear:
3338                                 note_diff_remove_note (*i);
3339                                 break;
3340                         }
3341                 }
3342
3343                 apply_diff();
3344         }
3345 }
3346
3347 MidiCutBuffer*
3348 MidiRegionView::selection_as_cut_buffer () const
3349 {
3350         Notes notes;
3351
3352         for (Selection::const_iterator i = _selection.begin(); i != _selection.end(); ++i) {
3353                 NoteType* n = (*i)->note().get();
3354                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
3355         }
3356
3357         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
3358         cb->set (notes);
3359
3360         return cb;
3361 }
3362
3363 /** This method handles undo */
3364 bool
3365 MidiRegionView::paste (framepos_t pos, unsigned paste_count, float times, const ::Selection& selection, ItemCounts& counts)
3366 {
3367         // Get our set of notes from the selection
3368         MidiNoteSelection::const_iterator m = selection.midi_notes.get_nth(counts.n_notes());
3369         if (m == selection.midi_notes.end()) {
3370                 return false;
3371         }
3372         counts.increase_n_notes();
3373
3374         trackview.session()->begin_reversible_command (Operations::paste);
3375
3376         // Paste notes
3377         paste_internal(pos, paste_count, times, **m);
3378
3379         // Paste control points to automation children
3380         typedef RouteTimeAxisView::AutomationTracks ATracks;
3381         const ATracks& atracks = midi_view()->automation_tracks();
3382         for (ATracks::const_iterator a = atracks.begin(); a != atracks.end(); ++a) {
3383                 a->second->paste(pos, paste_count, times, selection, counts);
3384         }
3385
3386         trackview.session()->commit_reversible_command ();
3387
3388         return true;
3389 }
3390
3391 /** This method handles undo */
3392 void
3393 MidiRegionView::paste_internal (framepos_t pos, unsigned paste_count, float times, const MidiCutBuffer& mcb)
3394 {
3395         if (mcb.empty()) {
3396                 return;
3397         }
3398
3399         PublicEditor& editor = trackview.editor ();
3400
3401         start_note_diff_command (_("paste"));
3402
3403         const Evoral::MusicalTime snap_beats    = get_grid_beats(pos);
3404         const Evoral::MusicalTime first_time    = (*mcb.notes().begin())->time();
3405         const Evoral::MusicalTime last_time     = (*mcb.notes().rbegin())->end_time();
3406         const Evoral::MusicalTime duration      = last_time - first_time;
3407         const Evoral::MusicalTime snap_duration = duration.snap_to(snap_beats);
3408         const Evoral::MusicalTime paste_offset  = snap_duration * paste_count;
3409         const Evoral::MusicalTime pos_beats     = absolute_frames_to_source_beats(pos) + paste_offset;
3410         Evoral::MusicalTime       end_point     = Evoral::MusicalTime();
3411
3412         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste data spans from %1 to %2 (%3) ; paste pos beats = %4 (based on %5 - %6)\n",
3413                                                        first_time,
3414                                                        last_time,
3415                                                        duration, pos, _region->position(),
3416                                                        pos_beats));
3417
3418         clear_selection ();
3419
3420         for (int n = 0; n < (int) times; ++n) {
3421
3422                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
3423
3424                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
3425                         copied_note->set_time (pos_beats + copied_note->time() - first_time);
3426
3427                         /* make all newly added notes selected */
3428
3429                         note_diff_add_note (copied_note, true);
3430                         end_point = copied_note->end_time();
3431                 }
3432         }
3433
3434         /* if we pasted past the current end of the region, extend the region */
3435
3436         framepos_t end_frame = source_beats_to_absolute_frames (end_point);
3437         framepos_t region_end = _region->position() + _region->length() - 1;
3438
3439         if (end_frame > region_end) {
3440
3441                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste extended region from %1 to %2\n", region_end, end_frame));
3442
3443                 _region->clear_changes ();
3444                 _region->set_length (end_frame - _region->position());
3445                 trackview.session()->add_command (new StatefulDiffCommand (_region));
3446         }
3447
3448         apply_diff (true);
3449 }
3450
3451 struct EventNoteTimeEarlyFirstComparator {
3452         bool operator() (NoteBase* a, NoteBase* b) {
3453                 return a->note()->time() < b->note()->time();
3454         }
3455 };
3456
3457 void
3458 MidiRegionView::time_sort_events ()
3459 {
3460         if (!_sort_needed) {
3461                 return;
3462         }
3463
3464         EventNoteTimeEarlyFirstComparator cmp;
3465         _events.sort (cmp);
3466
3467         _sort_needed = false;
3468 }
3469
3470 void
3471 MidiRegionView::goto_next_note (bool add_to_selection)
3472 {
3473         bool use_next = false;
3474
3475         if (_events.back()->selected()) {
3476                 return;
3477         }
3478
3479         time_sort_events ();
3480
3481         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3482         uint16_t const channel_mask = mtv->midi_track()->get_playback_channel_mask();
3483
3484         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3485                 if ((*i)->selected()) {
3486                         use_next = true;
3487                         continue;
3488                 } else if (use_next) {
3489                         if (channel_mask & (1 << (*i)->note()->channel())) {
3490                                 if (!add_to_selection) {
3491                                         unique_select (*i);
3492                                 } else {
3493                                         note_selected (*i, true, false);
3494                                 }
3495                                 return;
3496                         }
3497                 }
3498         }
3499
3500         /* use the first one */
3501
3502         if (!_events.empty() && (channel_mask & (1 << _events.front()->note()->channel ()))) {
3503                 unique_select (_events.front());
3504         }
3505 }
3506
3507 void
3508 MidiRegionView::goto_previous_note (bool add_to_selection)
3509 {
3510         bool use_next = false;
3511
3512         if (_events.front()->selected()) {
3513                 return;
3514         }
3515
3516         time_sort_events ();
3517
3518         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3519         uint16_t const channel_mask = mtv->midi_track()->get_playback_channel_mask ();
3520
3521         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
3522                 if ((*i)->selected()) {
3523                         use_next = true;
3524                         continue;
3525                 } else if (use_next) {
3526                         if (channel_mask & (1 << (*i)->note()->channel())) {
3527                                 if (!add_to_selection) {
3528                                         unique_select (*i);
3529                                 } else {
3530                                         note_selected (*i, true, false);
3531                                 }
3532                                 return;
3533                         }
3534                 }
3535         }
3536
3537         /* use the last one */
3538
3539         if (!_events.empty() && (channel_mask & (1 << (*_events.rbegin())->note()->channel ()))) {
3540                 unique_select (*(_events.rbegin()));
3541         }
3542 }
3543
3544 void
3545 MidiRegionView::selection_as_notelist (Notes& selected, bool allow_all_if_none_selected)
3546 {
3547         bool had_selected = false;
3548
3549         time_sort_events ();
3550
3551         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3552                 if ((*i)->selected()) {
3553                         selected.insert ((*i)->note());
3554                         had_selected = true;
3555                 }
3556         }
3557
3558         if (allow_all_if_none_selected && !had_selected) {
3559                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3560                         selected.insert ((*i)->note());
3561                 }
3562         }
3563 }
3564
3565 void
3566 MidiRegionView::update_ghost_note (double x, double y)
3567 {
3568         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3569
3570         _last_ghost_x = x;
3571         _last_ghost_y = y;
3572
3573         _note_group->canvas_to_item (x, y);
3574
3575         PublicEditor& editor = trackview.editor ();
3576
3577         framepos_t const unsnapped_frame = editor.pixel_to_sample (x);
3578         framecnt_t grid_frames;
3579         framepos_t const f = snap_frame_to_grid_underneath (unsnapped_frame, grid_frames);
3580
3581         /* use region_frames... because we are converting a delta within the region
3582         */
3583
3584         const Evoral::MusicalTime length = get_grid_beats(unsnapped_frame);
3585
3586         /* note that this sets the time of the ghost note in beats relative to
3587            the start of the source; that is how all note times are stored.
3588         */
3589         _ghost_note->note()->set_time (
3590                 std::max(Evoral::MusicalTime(),
3591                          absolute_frames_to_source_beats (f + _region->position ())));
3592         _ghost_note->note()->set_length (length);
3593         _ghost_note->note()->set_note (midi_stream_view()->y_to_note (y));
3594         _ghost_note->note()->set_channel (mtv->get_channel_for_add ());
3595
3596         /* the ghost note does not appear in ghost regions, so pass false in here */
3597         update_note (_ghost_note, false);
3598
3599         show_verbose_cursor (_ghost_note->note ());
3600 }
3601
3602 void
3603 MidiRegionView::create_ghost_note (double x, double y)
3604 {
3605         remove_ghost_note ();
3606
3607         boost::shared_ptr<NoteType> g (new NoteType);
3608         _ghost_note = new Note (*this, _note_group, g);
3609         _ghost_note->set_ignore_events (true);
3610         _ghost_note->set_outline_color (0x000000aa);
3611         if (x < 0) { x = 0; }
3612         update_ghost_note (x, y);
3613         _ghost_note->show ();
3614
3615         _last_ghost_x = x;
3616         _last_ghost_y = y;
3617
3618         show_verbose_cursor (_ghost_note->note ());
3619 }
3620
3621 void
3622 MidiRegionView::remove_ghost_note ()
3623 {
3624         delete _ghost_note;
3625         _ghost_note = 0;
3626 }
3627
3628 void
3629 MidiRegionView::snap_changed ()
3630 {
3631         if (!_ghost_note) {
3632                 return;
3633         }
3634
3635         create_ghost_note (_last_ghost_x, _last_ghost_y);
3636 }
3637
3638 void
3639 MidiRegionView::drop_down_keys ()
3640 {
3641         _mouse_state = None;
3642 }
3643
3644 void
3645 MidiRegionView::maybe_select_by_position (GdkEventButton* ev, double /*x*/, double y)
3646 {
3647         double note = midi_stream_view()->y_to_note(y);
3648         Events e;
3649         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3650
3651         uint16_t chn_mask = mtv->midi_track()->get_playback_channel_mask();
3652
3653         if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
3654                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchGreaterThanOrEqual, (uint8_t) floor (note), chn_mask);
3655         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
3656                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchLessThanOrEqual, (uint8_t) floor (note), chn_mask);
3657         } else {
3658                 return;
3659         }
3660
3661         bool add_mrv_selection = false;
3662
3663         if (_selection.empty()) {
3664                 add_mrv_selection = true;
3665         }
3666
3667         for (Events::iterator i = e.begin(); i != e.end(); ++i) {
3668                 if (_selection.insert (*i).second) {
3669                         (*i)->set_selected (true);
3670                 }
3671         }
3672
3673         if (add_mrv_selection) {
3674                 PublicEditor& editor (trackview.editor());
3675                 editor.get_selection().add (this);
3676         }
3677 }
3678
3679 void
3680 MidiRegionView::color_handler ()
3681 {
3682         RegionView::color_handler ();
3683
3684         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3685                 (*i)->set_selected ((*i)->selected()); // will change color
3686         }
3687
3688         /* XXX probably more to do here */
3689 }
3690
3691 void
3692 MidiRegionView::enable_display (bool yn)
3693 {
3694         RegionView::enable_display (yn);
3695         if (yn) {
3696                 redisplay_model ();
3697         }
3698 }
3699
3700 void
3701 MidiRegionView::show_step_edit_cursor (Evoral::MusicalTime pos)
3702 {
3703         if (_step_edit_cursor == 0) {
3704                 ArdourCanvas::Item* const group = get_canvas_group();
3705
3706                 _step_edit_cursor = new ArdourCanvas::Rectangle (group);
3707                 _step_edit_cursor->set_y0 (0);
3708                 _step_edit_cursor->set_y1 (midi_stream_view()->contents_height());
3709                 _step_edit_cursor->set_fill_color (RGBA_TO_UINT (45,0,0,90));
3710                 _step_edit_cursor->set_outline_color (RGBA_TO_UINT (85,0,0,90));
3711         }
3712
3713         move_step_edit_cursor (pos);
3714         _step_edit_cursor->show ();
3715 }
3716
3717 void
3718 MidiRegionView::move_step_edit_cursor (Evoral::MusicalTime pos)
3719 {
3720         _step_edit_cursor_position = pos;
3721
3722         if (_step_edit_cursor) {
3723                 double pixel = trackview.editor().sample_to_pixel (region_beats_to_region_frames (pos));
3724                 _step_edit_cursor->set_x0 (pixel);
3725                 set_step_edit_cursor_width (_step_edit_cursor_width);
3726         }
3727 }
3728
3729 void
3730 MidiRegionView::hide_step_edit_cursor ()
3731 {
3732         if (_step_edit_cursor) {
3733                 _step_edit_cursor->hide ();
3734         }
3735 }
3736
3737 void
3738 MidiRegionView::set_step_edit_cursor_width (Evoral::MusicalTime beats)
3739 {
3740         _step_edit_cursor_width = beats;
3741
3742         if (_step_edit_cursor) {
3743                 _step_edit_cursor->set_x1 (_step_edit_cursor->x0() + trackview.editor().sample_to_pixel (region_beats_to_region_frames (beats)));
3744         }
3745 }
3746
3747 /** Called when a diskstream on our track has received some data.  Update the view, if applicable.
3748  *  @param w Source that the data will end up in.
3749  */
3750 void
3751 MidiRegionView::data_recorded (boost::weak_ptr<MidiSource> w)
3752 {
3753         if (!_active_notes) {
3754                 /* we aren't actively being recorded to */
3755                 return;
3756         }
3757
3758         boost::shared_ptr<MidiSource> src = w.lock ();
3759         if (!src || src != midi_region()->midi_source()) {
3760                 /* recorded data was not destined for our source */
3761                 return;
3762         }
3763
3764         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (&trackview);
3765
3766         boost::shared_ptr<MidiBuffer> buf = mtv->midi_track()->get_gui_feed_buffer ();
3767
3768         BeatsFramesConverter converter (trackview.session()->tempo_map(), mtv->midi_track()->get_capture_start_frame (0));
3769
3770         framepos_t back = max_framepos;
3771
3772         for (MidiBuffer::iterator i = buf->begin(); i != buf->end(); ++i) {
3773                 Evoral::MIDIEvent<MidiBuffer::TimeType> const ev (*i, false);
3774
3775                 if (ev.is_channel_event()) {
3776                         if (get_channel_mode() == FilterChannels) {
3777                                 if (((uint16_t(1) << ev.channel()) & get_selected_channels()) == 0) {
3778                                         continue;
3779                                 }
3780                         }
3781                 }
3782
3783                 /* ev.time() is in session frames, so (ev.time() - converter.origin_b()) is
3784                    frames from the start of the source, and so time_beats is in terms of the
3785                    source.
3786                 */
3787
3788                 Evoral::MusicalTime const time_beats = converter.from (ev.time () - converter.origin_b ());
3789
3790                 if (ev.type() == MIDI_CMD_NOTE_ON) {
3791                         boost::shared_ptr<NoteType> note (
3792                                 new NoteType (ev.channel(), time_beats, Evoral::MusicalTime(), ev.note(), ev.velocity()));
3793
3794                         add_note (note, true);
3795
3796                         /* fix up our note range */
3797                         if (ev.note() < _current_range_min) {
3798                                 midi_stream_view()->apply_note_range (ev.note(), _current_range_max, true);
3799                         } else if (ev.note() > _current_range_max) {
3800                                 midi_stream_view()->apply_note_range (_current_range_min, ev.note(), true);
3801                         }
3802
3803                 } else if (ev.type() == MIDI_CMD_NOTE_OFF) {
3804                         resolve_note (ev.note (), time_beats);
3805                 }
3806
3807                 back = ev.time ();
3808         }
3809
3810         midi_stream_view()->check_record_layers (region(), back);
3811 }
3812
3813 void
3814 MidiRegionView::trim_front_starting ()
3815 {
3816         /* Reparent the note group to the region view's parent, so that it doesn't change
3817            when the region view is trimmed.
3818         */
3819         _temporary_note_group = new ArdourCanvas::Container (group->parent ());
3820         _temporary_note_group->move (group->position ());
3821         _note_group->reparent (_temporary_note_group);
3822 }
3823
3824 void
3825 MidiRegionView::trim_front_ending ()
3826 {
3827         _note_group->reparent (group);
3828         delete _temporary_note_group;
3829         _temporary_note_group = 0;
3830
3831         if (_region->start() < 0) {
3832                 /* Trim drag made start time -ve; fix this */
3833                 midi_region()->fix_negative_start ();
3834         }
3835 }
3836
3837 void
3838 MidiRegionView::edit_patch_change (PatchChange* pc)
3839 {
3840         PatchChangeDialog d (&_source_relative_time_converter, trackview.session(), *pc->patch (), instrument_info(), Gtk::Stock::APPLY, true);
3841
3842         int response = d.run();
3843
3844         switch (response) {
3845         case Gtk::RESPONSE_ACCEPT:
3846                 break;
3847         case Gtk::RESPONSE_REJECT:
3848                 delete_patch_change (pc);
3849                 return;
3850         default:
3851                 return;
3852         }
3853
3854         change_patch_change (pc->patch(), d.patch ());
3855 }
3856
3857 void
3858 MidiRegionView::delete_sysex (SysEx* /*sysex*/)
3859 {
3860         // CAIROCANVAS
3861         // sysyex object doesn't have a pointer to a sysex event
3862         // MidiModel::SysExDiffCommand* c = _model->new_sysex_diff_command (_("delete sysex"));
3863         // c->remove (sysex->sysex());
3864         // _model->apply_command (*trackview.session(), c);
3865
3866         //_sys_exes.clear ();
3867         // display_sysexes();
3868 }
3869
3870 void
3871 MidiRegionView::show_verbose_cursor (boost::shared_ptr<NoteType> n) const
3872 {
3873         using namespace MIDI::Name;
3874
3875         std::string name;
3876
3877         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3878         if (mtv) {
3879                 boost::shared_ptr<MasterDeviceNames> device_names(mtv->get_device_names());
3880                 if (device_names) {
3881                         MIDI::Name::PatchPrimaryKey patch_key;
3882                         get_patch_key_at(n->time(), n->channel(), patch_key);
3883                         name = device_names->note_name(mtv->gui_property(X_("midnam-custom-device-mode")),
3884                                                        n->channel(),
3885                                                        patch_key.bank_number,
3886                                                        patch_key.program_number,
3887                                                        n->note());
3888                 }
3889         }
3890
3891         char buf[128];
3892         snprintf (buf, sizeof (buf), "%d %s\nCh %d Vel %d",
3893                   (int) n->note (),
3894                   name.empty() ? Evoral::midi_note_name (n->note()).c_str() : name.c_str(),
3895                   (int) n->channel() + 1,
3896                   (int) n->velocity());
3897
3898         show_verbose_cursor(buf, 10, 20);
3899 }
3900
3901 void
3902 MidiRegionView::show_verbose_cursor (string const & text, double xoffset, double yoffset) const
3903 {
3904         trackview.editor().verbose_cursor()->set (text);
3905         trackview.editor().verbose_cursor()->show ();
3906         trackview.editor().verbose_cursor()->set_offset (ArdourCanvas::Duple (xoffset, yoffset));
3907 }
3908
3909 /** @param p A session framepos.
3910  *  @param grid_frames Filled in with the number of frames that a grid interval is at p.
3911  *  @return p snapped to the grid subdivision underneath it.
3912  */
3913 framepos_t
3914 MidiRegionView::snap_frame_to_grid_underneath (framepos_t p, framecnt_t& grid_frames) const
3915 {
3916         PublicEditor& editor = trackview.editor ();
3917
3918         const Evoral::MusicalTime grid_beats = get_grid_beats(p);
3919
3920         grid_frames = region_beats_to_region_frames (grid_beats);
3921
3922         /* Hack so that we always snap to the note that we are over, instead of snapping
3923            to the next one if we're more than halfway through the one we're over.
3924         */
3925         if (editor.snap_mode() == SnapNormal && p >= grid_frames / 2) {
3926                 p -= grid_frames / 2;
3927         }
3928
3929         return snap_frame_to_frame (p);
3930 }
3931
3932 /** Called when the selection has been cleared in any MidiRegionView.
3933  *  @param rv MidiRegionView that the selection was cleared in.
3934  */
3935 void
3936 MidiRegionView::selection_cleared (MidiRegionView* rv)
3937 {
3938         if (rv == this) {
3939                 return;
3940         }
3941
3942         /* Clear our selection in sympathy; but don't signal the fact */
3943         clear_selection (false);
3944 }
3945
3946 void
3947 MidiRegionView::note_button_release ()
3948 {
3949         delete _note_player;
3950         _note_player = 0;
3951 }
3952
3953 ChannelMode
3954 MidiRegionView::get_channel_mode () const
3955 {
3956         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (&trackview);
3957         return rtav->midi_track()->get_playback_channel_mode();
3958 }
3959
3960 uint16_t
3961 MidiRegionView::get_selected_channels () const
3962 {
3963         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (&trackview);
3964         return rtav->midi_track()->get_playback_channel_mask();
3965 }
3966
3967
3968 Evoral::MusicalTime
3969 MidiRegionView::get_grid_beats(framepos_t pos) const
3970 {
3971         PublicEditor&       editor  = trackview.editor();
3972         bool                success = false;
3973         Evoral::MusicalTime beats   = editor.get_grid_type_as_beats(success, pos);
3974         if (!success) {
3975                 beats = Evoral::MusicalTime(1);
3976         }
3977         return beats;
3978 }