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 "midi++/midnam_patch.h"
  31
  32 #include "pbd/memento_command.h"
  33 #include "pbd/stateful_diff_command.h"
  34
  35 #include "ardour/midi_model.h"
  36 #include "ardour/midi_playlist.h"
  37 #include "ardour/midi_region.h"
  38 #include "ardour/midi_source.h"
  39 #include "ardour/midi_track.h"
  40 #include "ardour/operations.h"
  41 #include "ardour/session.h"
  42
  43 #include "evoral/Parameter.hpp"
  44 #include "evoral/Event.hpp"
  45 #include "evoral/Control.hpp"
  46 #include "evoral/midi_util.h"
  47
  48 #include "canvas/debug.h"
  49 #include "canvas/text.h"
  50
  51 #include "automation_region_view.h"
  52 #include "automation_time_axis.h"
  53 #include "control_point.h"
  54 #include "debug.h"
  55 #include "editor.h"
  56 #include "editor_drag.h"
  57 #include "ghostregion.h"
  58 #include "gui_thread.h"
  59 #include "item_counts.h"
  60 #include "keyboard.h"
  61 #include "midi_channel_dialog.h"
  62 #include "midi_cut_buffer.h"
  63 #include "midi_list_editor.h"
  64 #include "midi_region_view.h"
  65 #include "midi_streamview.h"
  66 #include "midi_time_axis.h"
  67 #include "midi_util.h"
  68 #include "midi_velocity_dialog.h"
  69 #include "mouse_cursors.h"
  70 #include "note_player.h"
  71 #include "paste_context.h"
  72 #include "public_editor.h"
  73 #include "route_time_axis.h"
  74 #include "rgb_macros.h"
  75 #include "selection.h"
  76 #include "streamview.h"
  77 #include "patch_change_dialog.h"
  78 #include "verbose_cursor.h"
  79 #include "note.h"
  80 #include "hit.h"
  81 #include "patch_change.h"
  82 #include "sys_ex.h"
  83 #include "ui_config.h"
  84
  85 #include "pbd/i18n.h"
  86
  87 using namespace ARDOUR;
  88 using namespace PBD;
  89 using namespace Editing;
  90 using namespace std;
  91 using Gtkmm2ext::Keyboard;
  92
  93 #define MIDI_BP_ZERO ((Config->get_first_midi_bank_is_zero())?0:1)
  94
  95 MidiRegionView::MidiRegionView (ArdourCanvas::Container*      parent,
  96                                 RouteTimeAxisView&            tv,
  97                                 boost::shared_ptr<MidiRegion> r,
  98                                 double                        spu,
  99                                 uint32_t                      basic_color)
 100         : RegionView (parent, tv, r, spu, basic_color)
 101         , _current_range_min(0)
 102         , _current_range_max(0)
 103         , _region_relative_time_converter(r->session().tempo_map(), r->position())
 104         , _source_relative_time_converter(r->session().tempo_map(), r->position() - r->start())
 105         , _region_relative_time_converter_double(r->session().tempo_map(), r->position())
 106         , _active_notes(0)
 107         , _note_group (new ArdourCanvas::Container (group))
 108         , _note_diff_command (0)
 109         , _ghost_note(0)
 110         , _step_edit_cursor (0)
 111         , _step_edit_cursor_width (1.0)
 112         , _step_edit_cursor_position (0.0)
 113         , _channel_selection_scoped_note (0)
 114         , _mouse_state(None)
 115         , _pressed_button(0)
 116         , _optimization_iterator (_events.end())
 117         , _list_editor (0)
 118         , _no_sound_notes (false)
 119         , _last_display_zoom (0)
 120         , _last_event_x (0)
 121         , _last_event_y (0)
 122         , _grabbed_keyboard (false)
 123         , _entered (false)
 124         , _entered_note (0)
 125         , _mouse_changed_selection (false)
 126 {
 127         CANVAS_DEBUG_NAME (_note_group, string_compose ("note group for %1", get_item_name()));
 128
 129         _patch_change_outline = UIConfiguration::instance().color ("midi patch change outline");
 130         _patch_change_fill = UIConfiguration::instance().color_mod ("midi patch change fill", "midi patch change fill");
 131
 132         _note_group->raise_to_top();
 133         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 134
 135         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
 136         connect_to_diskstream ();
 137 }
 138
 139 MidiRegionView::MidiRegionView (ArdourCanvas::Container*      parent,
 140                                 RouteTimeAxisView&            tv,
 141                                 boost::shared_ptr<MidiRegion> r,
 142                                 double                        spu,
 143                                 uint32_t                      basic_color,
 144                                 bool                          recording,
 145                                 TimeAxisViewItem::Visibility  visibility)
 146         : RegionView (parent, tv, r, spu, basic_color, recording, visibility)
 147         , _current_range_min(0)
 148         , _current_range_max(0)
 149         , _region_relative_time_converter(r->session().tempo_map(), r->position())
 150         , _source_relative_time_converter(r->session().tempo_map(), r->position() - r->start())
 151         , _region_relative_time_converter_double(r->session().tempo_map(), r->position())
 152         , _active_notes(0)
 153         , _note_group (new ArdourCanvas::Container (group))
 154         , _note_diff_command (0)
 155         , _ghost_note(0)
 156         , _step_edit_cursor (0)
 157         , _step_edit_cursor_width (1.0)
 158         , _step_edit_cursor_position (0.0)
 159         , _channel_selection_scoped_note (0)
 160         , _mouse_state(None)
 161         , _pressed_button(0)
 162         , _optimization_iterator (_events.end())
 163         , _list_editor (0)
 164         , _no_sound_notes (false)
 165         , _last_display_zoom (0)
 166         , _last_event_x (0)
 167         , _last_event_y (0)
 168         , _grabbed_keyboard (false)
 169         , _entered (false)
 170         , _entered_note (0)
 171         , _mouse_changed_selection (false)
 172 {
 173         CANVAS_DEBUG_NAME (_note_group, string_compose ("note group for %1", get_item_name()));
 174
 175         _patch_change_outline = UIConfiguration::instance().color ("midi patch change outline");
 176         _patch_change_fill = UIConfiguration::instance().color_mod ("midi patch change fill", "midi patch change fill");
 177
 178         _note_group->raise_to_top();
 179
 180         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 181
 182         connect_to_diskstream ();
 183 }
 184
 185 void
 186 MidiRegionView::parameter_changed (std::string const & p)
 187 {
 188         if (p == "display-first-midi-bank-as-zero") {
 189                 if (_enable_display) {
 190                         redisplay_model();
 191                 }
 192         } else if (p == "color-regions-using-track-color") {
 193                 set_colors ();
 194         }
 195 }
 196
 197 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 198         : sigc::trackable(other)
 199         , RegionView (other)
 200         , _current_range_min(0)
 201         , _current_range_max(0)
 202         , _region_relative_time_converter(other.region_relative_time_converter())
 203         , _source_relative_time_converter(other.source_relative_time_converter())
 204         , _region_relative_time_converter_double(other.region_relative_time_converter_double())
 205         , _active_notes(0)
 206         , _note_group (new ArdourCanvas::Container (get_canvas_group()))
 207         , _note_diff_command (0)
 208         , _ghost_note(0)
 209         , _step_edit_cursor (0)
 210         , _step_edit_cursor_width (1.0)
 211         , _step_edit_cursor_position (0.0)
 212         , _channel_selection_scoped_note (0)
 213         , _mouse_state(None)
 214         , _pressed_button(0)
 215         , _optimization_iterator (_events.end())
 216         , _list_editor (0)
 217         , _no_sound_notes (false)
 218         , _last_display_zoom (0)
 219         , _last_event_x (0)
 220         , _last_event_y (0)
 221         , _grabbed_keyboard (false)
 222         , _entered (false)
 223         , _entered_note (0)
 224         , _mouse_changed_selection (false)
 225 {
 226         init (false);
 227 }
 228
 229 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 230         : RegionView (other, boost::shared_ptr<Region> (region))
 231         , _current_range_min(0)
 232         , _current_range_max(0)
 233         , _region_relative_time_converter(other.region_relative_time_converter())
 234         , _source_relative_time_converter(other.source_relative_time_converter())
 235         , _region_relative_time_converter_double(other.region_relative_time_converter_double())
 236         , _active_notes(0)
 237         , _note_group (new ArdourCanvas::Container (get_canvas_group()))
 238         , _note_diff_command (0)
 239         , _ghost_note(0)
 240         , _step_edit_cursor (0)
 241         , _step_edit_cursor_width (1.0)
 242         , _step_edit_cursor_position (0.0)
 243         , _channel_selection_scoped_note (0)
 244         , _mouse_state(None)
 245         , _pressed_button(0)
 246         , _optimization_iterator (_events.end())
 247         , _list_editor (0)
 248         , _no_sound_notes (false)
 249         , _last_display_zoom (0)
 250         , _last_event_x (0)
 251         , _last_event_y (0)
 252         , _grabbed_keyboard (false)
 253         , _entered (false)
 254         , _entered_note (0)
 255         , _mouse_changed_selection (false)
 256 {
 257         init (true);
 258 }
 259
 260 void
 261 MidiRegionView::init (bool wfd)
 262 {
 263         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 264
 265         if (wfd) {
 266                 Glib::Threads::Mutex::Lock lm(midi_region()->midi_source(0)->mutex());
 267                 midi_region()->midi_source(0)->load_model(lm);
 268         }
 269
 270         _model = midi_region()->midi_source(0)->model();
 271         _enable_display = false;
 272         fill_color_name = "midi frame base";
 273
 274         RegionView::init (false);
 275
 276         //set_height (trackview.current_height());
 277
 278         region_muted ();
 279         region_sync_changed ();
 280         region_resized (ARDOUR::bounds_change);
 281         //region_locked ();
 282
 283         set_colors ();
 284
 285         _enable_display = true;
 286         if (_model) {
 287                 if (wfd) {
 288                         display_model (_model);
 289                 }
 290         }
 291
 292         reset_width_dependent_items (_pixel_width);
 293
 294         group->raise_to_top();
 295
 296         midi_view()->midi_track()->playback_filter().ChannelModeChanged.connect (_channel_mode_changed_connection, invalidator (*this),
 297                                                                        boost::bind (&MidiRegionView::midi_channel_mode_changed, this),
 298                                                                        gui_context ());
 299
 300         instrument_info().Changed.connect (_instrument_changed_connection, invalidator (*this),
 301                                            boost::bind (&MidiRegionView::instrument_settings_changed, this), gui_context());
 302
 303         trackview.editor().SnapChanged.connect(snap_changed_connection, invalidator(*this),
 304                                                boost::bind (&MidiRegionView::snap_changed, this),
 305                                                gui_context());
 306
 307         trackview.editor().MouseModeChanged.connect(_mouse_mode_connection, invalidator (*this),
 308                                                     boost::bind (&MidiRegionView::mouse_mode_changed, this),
 309                                                     gui_context ());
 310
 311         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&MidiRegionView::parameter_changed, this, _1), gui_context());
 312         UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &MidiRegionView::parameter_changed));
 313         connect_to_diskstream ();
 314 }
 315
 316 InstrumentInfo&
 317 MidiRegionView::instrument_info () const
 318 {
 319         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
 320         return route_ui->route()->instrument_info();
 321 }
 322
 323 const boost::shared_ptr<ARDOUR::MidiRegion>
 324 MidiRegionView::midi_region() const
 325 {
 326         return boost::dynamic_pointer_cast<ARDOUR::MidiRegion>(_region);
 327 }
 328
 329 void
 330 MidiRegionView::connect_to_diskstream ()
 331 {
 332         midi_view()->midi_track()->DataRecorded.connect(
 333                 *this, invalidator(*this),
 334                 boost::bind (&MidiRegionView::data_recorded, this, _1),
 335                 gui_context());
 336 }
 337
 338 bool
 339 MidiRegionView::canvas_group_event(GdkEvent* ev)
 340 {
 341         if (in_destructor || _recregion) {
 342                 return false;
 343         }
 344
 345         if (!trackview.editor().internal_editing()) {
 346                 // not in internal edit mode, so just act like a normal region
 347                 return RegionView::canvas_group_event (ev);
 348         }
 349
 350         bool r;
 351
 352         switch (ev->type) {
 353         case GDK_ENTER_NOTIFY:
 354                 _last_event_x = ev->crossing.x;
 355                 _last_event_y = ev->crossing.y;
 356                 enter_notify(&ev->crossing);
 357                 // set entered_regionview (among other things)
 358                 return RegionView::canvas_group_event (ev);
 359
 360         case GDK_LEAVE_NOTIFY:
 361                 _last_event_x = ev->crossing.x;
 362                 _last_event_y = ev->crossing.y;
 363                 leave_notify(&ev->crossing);
 364                 // reset entered_regionview (among other things)
 365                 return RegionView::canvas_group_event (ev);
 366
 367         case GDK_SCROLL:
 368                 if (scroll (&ev->scroll)) {
 369                         return true;
 370                 }
 371                 break;
 372
 373         case GDK_KEY_PRESS:
 374                 return key_press (&ev->key);
 375
 376         case GDK_KEY_RELEASE:
 377                 return key_release (&ev->key);
 378
 379         case GDK_BUTTON_PRESS:
 380                 return button_press (&ev->button);
 381
 382         case GDK_BUTTON_RELEASE:
 383                 r = button_release (&ev->button);
 384                 return r;
 385
 386         case GDK_MOTION_NOTIFY:
 387                 _last_event_x = ev->motion.x;
 388                 _last_event_y = ev->motion.y;
 389                 return motion (&ev->motion);
 390
 391         default:
 392                 break;
 393         }
 394
 395         return RegionView::canvas_group_event (ev);
 396 }
 397
 398 bool
 399 MidiRegionView::enter_notify (GdkEventCrossing* ev)
 400 {
 401         enter_internal (ev->state);
 402
 403         _entered = true;
 404         return false;
 405 }
 406
 407 bool
 408 MidiRegionView::leave_notify (GdkEventCrossing*)
 409 {
 410         leave_internal();
 411
 412         _entered = false;
 413         return false;
 414 }
 415
 416 void
 417 MidiRegionView::mouse_mode_changed ()
 418 {
 419         // Adjust frame colour (become more transparent for internal tools)
 420         set_frame_color();
 421
 422         if (_entered) {
 423                 if (!trackview.editor().internal_editing()) {
 424                         /* Switched out of internal editing mode while entered.
 425                         Only necessary for leave as a mouse_mode_change over a region
 426                         automatically triggers an enter event. */
 427                         leave_internal();
 428                 }
 429                 else if (trackview.editor().current_mouse_mode() == MouseContent) {
 430                         // hide cursor and ghost note after changing to internal edit mode
 431                         remove_ghost_note ();
 432
 433                         /* XXX This is problematic as the function is executed for every region
 434                         and only for one region _entered_note can be true. Still it's
 435                         necessary as to hide the verbose cursor when we're changing from
 436                         draw mode to internal edit mode. These lines are the reason why
 437                         in some situations no verbose cursor is shown when we enter internal
 438                         edit mode over a note. */
 439                         if (!_entered_note) {
 440                                 hide_verbose_cursor ();
 441                         }
 442                 }
 443         }
 444 }
 445
 446 void
 447 MidiRegionView::enter_internal (uint32_t state)
 448 {
 449         if (trackview.editor().current_mouse_mode() == MouseDraw && _mouse_state != AddDragging) {
 450                 // Show ghost note under pencil
 451                 create_ghost_note(_last_event_x, _last_event_y, state);
 452         }
 453
 454         if (!_selection.empty()) {
 455                 // Grab keyboard for moving selected notes with arrow keys
 456                 Keyboard::magic_widget_grab_focus();
 457                 _grabbed_keyboard = true;
 458         }
 459
 460         // Lower frame handles below notes so they don't steal events
 461         if (frame_handle_start) {
 462                 frame_handle_start->lower_to_bottom();
 463         }
 464         if (frame_handle_end) {
 465                 frame_handle_end->lower_to_bottom();
 466         }
 467 }
 468
 469 void
 470 MidiRegionView::leave_internal()
 471 {
 472         hide_verbose_cursor ();
 473         remove_ghost_note ();
 474         _entered_note = 0;
 475
 476         if (_grabbed_keyboard) {
 477                 Keyboard::magic_widget_drop_focus();
 478                 _grabbed_keyboard = false;
 479         }
 480
 481         // Raise frame handles above notes so they catch events
 482         if (frame_handle_start) {
 483                 frame_handle_start->raise_to_top();
 484         }
 485         if (frame_handle_end) {
 486                 frame_handle_end->raise_to_top();
 487         }
 488 }
 489
 490 bool
 491 MidiRegionView::button_press (GdkEventButton* ev)
 492 {
 493         if (ev->button != 1) {
 494                 return false;
 495         }
 496
 497         Editor* editor = dynamic_cast<Editor *> (&trackview.editor());
 498         MouseMode m = editor->current_mouse_mode();
 499
 500         if (m == MouseContent && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 501                 _press_cursor_ctx = CursorContext::create(*editor, editor->cursors()->midi_pencil);
 502         }
 503
 504         if (_mouse_state != SelectTouchDragging) {
 505
 506                 _pressed_button = ev->button;
 507
 508                 if (m == MouseDraw || (m == MouseContent && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier()))) {
 509
 510                         if (midi_view()->note_mode() == Percussive) {
 511                                 editor->drags()->set (new HitCreateDrag (dynamic_cast<Editor *> (editor), group, this), (GdkEvent *) ev);
 512                         } else {
 513                                 editor->drags()->set (new NoteCreateDrag (dynamic_cast<Editor *> (editor), group, this), (GdkEvent *) ev);
 514                         }
 515
 516                         _mouse_state = AddDragging;
 517                         remove_ghost_note ();
 518                         hide_verbose_cursor ();
 519                 } else {
 520                         _mouse_state = Pressed;
 521                 }
 522
 523                 return true;
 524         }
 525
 526         _pressed_button = ev->button;
 527         _mouse_changed_selection = false;
 528
 529         return true;
 530 }
 531
 532 bool
 533 MidiRegionView::button_release (GdkEventButton* ev)
 534 {
 535         double event_x, event_y;
 536
 537         if (ev->button != 1) {
 538                 return false;
 539         }
 540
 541         event_x = ev->x;
 542         event_y = ev->y;
 543
 544         group->canvas_to_item (event_x, event_y);
 545         group->ungrab ();
 546
 547         PublicEditor& editor = trackview.editor ();
 548
 549         _press_cursor_ctx.reset();
 550
 551         switch (_mouse_state) {
 552         case Pressed: // Clicked
 553
 554                 switch (editor.current_mouse_mode()) {
 555                 case MouseRange:
 556                         /* no motion occurred - simple click */
 557                         clear_editor_note_selection ();
 558                         _mouse_changed_selection = true;
 559                         break;
 560
 561                 case MouseContent:
 562                 case MouseTimeFX:
 563                         {
 564                                 _mouse_changed_selection = true;
 565                                 clear_editor_note_selection ();
 566
 567                                 break;
 568                         }
 569                 case MouseDraw:
 570                         break;
 571
 572                 default:
 573                         break;
 574                 }
 575
 576                 _mouse_state = None;
 577                 break;
 578
 579         case AddDragging:
 580                 /* Don't a ghost note when we added a note - wait until motion to avoid visual confusion.
 581                    we don't want one when we were drag-selecting either. */
 582         case SelectRectDragging:
 583                 editor.drags()->end_grab ((GdkEvent *) ev);
 584                 _mouse_state = None;
 585                 break;
 586
 587
 588         default:
 589                 break;
 590         }
 591
 592         if (_mouse_changed_selection) {
 593                 trackview.editor().begin_reversible_selection_op (X_("Mouse Selection Change"));
 594                 trackview.editor().commit_reversible_selection_op ();
 595         }
 596
 597         return false;
 598 }
 599
 600 bool
 601 MidiRegionView::motion (GdkEventMotion* ev)
 602 {
 603         PublicEditor& editor = trackview.editor ();
 604
 605         if (!_entered_note) {
 606
 607                 if (_mouse_state == AddDragging) {
 608                         if (_ghost_note) {
 609                                 remove_ghost_note ();
 610                         }
 611
 612                 } else if (!_ghost_note && editor.current_mouse_mode() == MouseContent &&
 613                     Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier()) &&
 614                     _mouse_state != AddDragging) {
 615
 616                         create_ghost_note (ev->x, ev->y, ev->state);
 617
 618                 } else if (_ghost_note && editor.current_mouse_mode() == MouseContent &&
 619                            Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 620
 621                         update_ghost_note (ev->x, ev->y, ev->state);
 622
 623                 } else if (_ghost_note && editor.current_mouse_mode() == MouseContent) {
 624
 625                         remove_ghost_note ();
 626                         hide_verbose_cursor ();
 627
 628                 } else if (editor.current_mouse_mode() == MouseDraw) {
 629
 630                         if (_ghost_note) {
 631                                 update_ghost_note (ev->x, ev->y, ev->state);
 632                         }
 633                         else {
 634                                 create_ghost_note (ev->x, ev->y, ev->state);
 635                         }
 636                 }
 637         }
 638
 639         /* any motion immediately hides velocity text that may have been visible */
 640
 641         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 642                 (*i)->hide_velocity ();
 643         }
 644
 645         switch (_mouse_state) {
 646         case Pressed:
 647
 648                 if (_pressed_button == 1) {
 649
 650                         MouseMode m = editor.current_mouse_mode();
 651
 652                         if (m == MouseContent && !Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 653                                 editor.drags()->set (new MidiRubberbandSelectDrag (dynamic_cast<Editor *> (&editor), this), (GdkEvent *) ev);
 654                                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 655                                         clear_editor_note_selection ();
 656                                         _mouse_changed_selection = true;
 657                                 }
 658                                 _mouse_state = SelectRectDragging;
 659                                 return true;
 660                         } else if (m == MouseRange) {
 661                                 editor.drags()->set (new MidiVerticalSelectDrag (dynamic_cast<Editor *> (&editor), this), (GdkEvent *) ev);
 662                                 _mouse_state = SelectVerticalDragging;
 663                                 return true;
 664                         }
 665                 }
 666
 667                 return false;
 668
 669         case SelectRectDragging:
 670         case SelectVerticalDragging:
 671         case AddDragging:
 672                 editor.drags()->motion_handler ((GdkEvent *) ev, false);
 673                 break;
 674
 675         case SelectTouchDragging:
 676                 return false;
 677
 678         default:
 679                 break;
 680
 681         }
 682
 683         /* we may be dragging some non-note object (eg. patch-change, sysex)
 684          */
 685
 686         return editor.drags()->motion_handler ((GdkEvent *) ev, false);
 687 }
 688
 689
 690 bool
 691 MidiRegionView::scroll (GdkEventScroll* ev)
 692 {
 693         if (_selection.empty()) {
 694                 return false;
 695         }
 696
 697         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier) ||
 698             Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 699                 /* XXX: bit of a hack; allow PrimaryModifier and TertiaryModifier scroll
 700                  * through so that it still works for navigation.
 701                 */
 702                 return false;
 703         }
 704
 705         hide_verbose_cursor ();
 706
 707         bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 708         Keyboard::ModifierMask mask_together(Keyboard::PrimaryModifier|Keyboard::TertiaryModifier);
 709         bool together = Keyboard::modifier_state_contains (ev->state, mask_together);
 710
 711         if (ev->direction == GDK_SCROLL_UP) {
 712                 change_velocities (true, fine, false, together);
 713         } else if (ev->direction == GDK_SCROLL_DOWN) {
 714                 change_velocities (false, fine, false, together);
 715         } else {
 716                 /* left, right: we don't use them */
 717                 return false;
 718         }
 719
 720         return true;
 721 }
 722
 723 bool
 724 MidiRegionView::key_press (GdkEventKey* ev)
 725 {
 726         /* since GTK bindings are generally activated on press, and since
 727            detectable auto-repeat is the name of the game and only sends
 728            repeated presses, carry out key actions at key press, not release.
 729         */
 730         bool unmodified = Keyboard::no_modifier_keys_pressed (ev);
 731
 732         if (unmodified && (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R)) {
 733
 734                 if (_mouse_state != AddDragging) {
 735                         _mouse_state = SelectTouchDragging;
 736                 }
 737
 738                 return true;
 739
 740         } else if (ev->keyval == GDK_Escape && unmodified) {
 741                 clear_editor_note_selection ();
 742                 _mouse_state = None;
 743
 744         } else if (ev->keyval == GDK_comma || ev->keyval == GDK_period) {
 745
 746                 bool start = (ev->keyval == GDK_comma);
 747                 bool end = (ev->keyval == GDK_period);
 748                 bool shorter = Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier);
 749                 bool fine = Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 750
 751                 change_note_lengths (fine, shorter, Evoral::Beats(), start, end);
 752
 753                 return true;
 754
 755         } else if ((ev->keyval == GDK_BackSpace || ev->keyval == GDK_Delete) && unmodified) {
 756
 757                 if (_selection.empty()) {
 758                         return false;
 759                 }
 760
 761                 delete_selection();
 762                 return true;
 763
 764         } else if (ev->keyval == GDK_Tab || ev->keyval == GDK_ISO_Left_Tab) {
 765
 766                 trackview.editor().begin_reversible_selection_op (X_("Select Adjacent Note"));
 767
 768                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 769                         goto_previous_note (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier));
 770                 } else {
 771                         goto_next_note (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier));
 772                 }
 773
 774                 trackview.editor().commit_reversible_selection_op();
 775
 776                 return true;
 777
 778         } else if (ev->keyval == GDK_Up) {
 779
 780                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 781                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 782                 bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::Level4Modifier);
 783
 784                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 785                         change_velocities (true, fine, allow_smush, together);
 786                 } else {
 787                         transpose (true, fine, allow_smush);
 788                 }
 789                 return true;
 790
 791         } else if (ev->keyval == GDK_Down) {
 792
 793                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 794                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 795                 bool together = Keyboard::modifier_state_contains (ev->state, Keyboard::Level4Modifier);
 796
 797                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 798                         change_velocities (false, fine, allow_smush, together);
 799                 } else {
 800                         transpose (false, fine, allow_smush);
 801                 }
 802                 return true;
 803
 804         } else if (ev->keyval == GDK_Left) {
 805
 806                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 807                 nudge_notes (false, fine);
 808                 return true;
 809
 810         } else if (ev->keyval == GDK_Right) {
 811
 812                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 813                 nudge_notes (true, fine);
 814                 return true;
 815
 816         } else if (ev->keyval == GDK_c && unmodified) {
 817                 channel_edit ();
 818                 return true;
 819
 820         } else if (ev->keyval == GDK_v && unmodified) {
 821                 velocity_edit ();
 822                 return true;
 823         }
 824
 825         return false;
 826 }
 827
 828 bool
 829 MidiRegionView::key_release (GdkEventKey* ev)
 830 {
 831         if ((_mouse_state == SelectTouchDragging) && (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R)) {
 832                 _mouse_state = None;
 833                 return true;
 834         }
 835         return false;
 836 }
 837
 838 void
 839 MidiRegionView::channel_edit ()
 840 {
 841         if (_selection.empty()) {
 842                 return;
 843         }
 844
 845         /* pick a note somewhat at random (since Selection is a set<>) to
 846          * provide the "current" channel for the dialog.
 847          */
 848
 849         uint8_t current_channel = (*_selection.begin())->note()->channel ();
 850         MidiChannelDialog channel_dialog (current_channel);
 851         int ret = channel_dialog.run ();
 852
 853         switch (ret) {
 854         case Gtk::RESPONSE_OK:
 855                 break;
 856         default:
 857                 return;
 858         }
 859
 860         uint8_t new_channel = channel_dialog.active_channel ();
 861
 862         start_note_diff_command (_("channel edit"));
 863
 864         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
 865                 Selection::iterator next = i;
 866                 ++next;
 867                 change_note_channel (*i, new_channel);
 868                 i = next;
 869         }
 870
 871         apply_diff ();
 872 }
 873
 874 void
 875 MidiRegionView::velocity_edit ()
 876 {
 877         if (_selection.empty()) {
 878                 return;
 879         }
 880
 881         /* pick a note somewhat at random (since Selection is a set<>) to
 882          * provide the "current" velocity for the dialog.
 883          */
 884
 885         uint8_t current_velocity = (*_selection.begin())->note()->velocity ();
 886         MidiVelocityDialog velocity_dialog (current_velocity);
 887         int ret = velocity_dialog.run ();
 888
 889         switch (ret) {
 890         case Gtk::RESPONSE_OK:
 891                 break;
 892         default:
 893                 return;
 894         }
 895
 896         uint8_t new_velocity = velocity_dialog.velocity ();
 897
 898         start_note_diff_command (_("velocity edit"));
 899
 900         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
 901                 Selection::iterator next = i;
 902                 ++next;
 903                 change_note_velocity (*i, new_velocity, false);
 904                 i = next;
 905         }
 906
 907         apply_diff ();
 908 }
 909
 910 void
 911 MidiRegionView::show_list_editor ()
 912 {
 913         if (!_list_editor) {
 914                 _list_editor = new MidiListEditor (trackview.session(), midi_region(), midi_view()->midi_track());
 915         }
 916         _list_editor->present ();
 917 }
 918
 919 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 920  * \param t time in frames relative to the position of the region
 921  * \param y vertical position in pixels
 922  * \param length duration of the note in beats
 923  * \param snap_t true to snap t to the grid, otherwise false.
 924  */
 925 void
 926 MidiRegionView::create_note_at (framepos_t t, double y, Evoral::Beats length, uint32_t state, bool shift_snap)
 927 {
 928         if (length < 2 * DBL_EPSILON) {
 929                 return;
 930         }
 931
 932         MidiTimeAxisView* const mtv  = dynamic_cast<MidiTimeAxisView*>(&trackview);
 933         MidiStreamView* const   view = mtv->midi_view();
 934         boost::shared_ptr<MidiRegion> mr  = boost::dynamic_pointer_cast<MidiRegion> (_region);
 935
 936         if (!mr) {
 937                 return;
 938         }
 939
 940         // Start of note in frames relative to region start
 941         const int32_t divisions = trackview.editor().get_grid_music_divisions (state);
 942         Evoral::Beats beat_time = snap_frame_to_grid_underneath (t, divisions, shift_snap);
 943
 944         const double  note     = view->y_to_note(y);
 945         const uint8_t chan     = mtv->get_channel_for_add();
 946         const uint8_t velocity = get_velocity_for_add(beat_time);
 947
 948         const boost::shared_ptr<NoteType> new_note(
 949                 new NoteType (chan, beat_time, length, (uint8_t)note, velocity));
 950
 951         if (_model->contains (new_note)) {
 952                 return;
 953         }
 954
 955         view->update_note_range(new_note->note());
 956
 957         start_note_diff_command(_("add note"));
 958
 959         clear_editor_note_selection ();
 960         note_diff_add_note (new_note, true, false);
 961
 962         apply_diff();
 963
 964         play_midi_note (new_note);
 965 }
 966
 967 void
 968 MidiRegionView::clear_events ()
 969 {
 970         // clear selection without signaling
 971         clear_selection_internal ();
 972
 973         MidiGhostRegion* gr;
 974         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 975                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 976                         gr->clear_events();
 977                 }
 978         }
 979
 980
 981         _note_group->clear (true);
 982         _events.clear();
 983         _patch_changes.clear();
 984         _sys_exes.clear();
 985         _optimization_iterator = _events.end();
 986 }
 987
 988 void
 989 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 990 {
 991         _model = model;
 992
 993         content_connection.disconnect ();
 994         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 995         /* Don't signal as nobody else needs to know until selection has been altered. */
 996         clear_events();
 997
 998         if (_enable_display) {
 999                 redisplay_model();
1000         }
1001 }
1002
1003 void
1004 MidiRegionView::start_note_diff_command (string name)
1005 {
1006         if (!_note_diff_command) {
1007                 trackview.editor().begin_reversible_command (name);
1008                 _note_diff_command = _model->new_note_diff_command (name);
1009         }
1010 }
1011
1012 void
1013 MidiRegionView::note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
1014 {
1015         if (_note_diff_command) {
1016                 _note_diff_command->add (note);
1017         }
1018         if (selected) {
1019                 _marked_for_selection.insert(note);
1020         }
1021         if (show_velocity) {
1022                 _marked_for_velocity.insert(note);
1023         }
1024 }
1025
1026 void
1027 MidiRegionView::note_diff_remove_note (NoteBase* ev)
1028 {
1029         if (_note_diff_command && ev->note()) {
1030                 _note_diff_command->remove(ev->note());
1031         }
1032 }
1033
1034 void
1035 MidiRegionView::note_diff_add_change (NoteBase* ev,
1036                                       MidiModel::NoteDiffCommand::Property property,
1037                                       uint8_t val)
1038 {
1039         if (_note_diff_command) {
1040                 _note_diff_command->change (ev->note(), property, val);
1041         }
1042 }
1043
1044 void
1045 MidiRegionView::note_diff_add_change (NoteBase* ev,
1046                                       MidiModel::NoteDiffCommand::Property property,
1047                                       Evoral::Beats val)
1048 {
1049         if (_note_diff_command) {
1050                 _note_diff_command->change (ev->note(), property, val);
1051         }
1052 }
1053
1054 void
1055 MidiRegionView::apply_diff (bool as_subcommand, bool was_copy)
1056 {
1057         bool add_or_remove;
1058         bool commit = false;
1059
1060         if (!_note_diff_command) {
1061                 return;
1062         }
1063
1064         if (!was_copy && (add_or_remove = _note_diff_command->adds_or_removes())) {
1065                 // Mark all selected notes for selection when model reloads
1066                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1067                         _marked_for_selection.insert((*i)->note());
1068                 }
1069         }
1070
1071         midi_view()->midi_track()->midi_playlist()->region_edited (_region, _note_diff_command);
1072
1073         if (as_subcommand) {
1074                 _model->apply_command_as_subcommand (*trackview.session(), _note_diff_command);
1075         } else {
1076                 _model->apply_command (*trackview.session(), _note_diff_command);
1077                 commit = true;
1078         }
1079
1080         _note_diff_command = 0;
1081
1082         if (add_or_remove) {
1083                 _marked_for_selection.clear();
1084         }
1085
1086         _marked_for_velocity.clear();
1087         if (commit) {
1088                 trackview.editor().commit_reversible_command ();
1089         }
1090 }
1091
1092 void
1093 MidiRegionView::abort_command()
1094 {
1095         delete _note_diff_command;
1096         _note_diff_command = 0;
1097         clear_editor_note_selection();
1098 }
1099
1100 NoteBase*
1101 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
1102 {
1103
1104         if (_optimization_iterator != _events.end()) {
1105                 ++_optimization_iterator;
1106         }
1107
1108         if (_optimization_iterator != _events.end() && _optimization_iterator->first == note) {
1109                 return _optimization_iterator->second;
1110         }
1111
1112         _optimization_iterator = _events.find (note);
1113         if (_optimization_iterator != _events.end()) {
1114                 return _optimization_iterator->second;
1115         }
1116
1117         return 0;
1118 }
1119
1120 /** This version finds any canvas note matching the supplied note. */
1121 NoteBase*
1122 MidiRegionView::find_canvas_note (Evoral::event_id_t id)
1123 {
1124         Events::iterator it;
1125
1126         for (it = _events.begin(); it != _events.end(); ++it) {
1127                 if (it->first->id() == id) {
1128                         return it->second;
1129                 }
1130         }
1131
1132         return 0;
1133 }
1134
1135 boost::shared_ptr<PatchChange>
1136 MidiRegionView::find_canvas_patch_change (MidiModel::PatchChangePtr p)
1137 {
1138         PatchChanges::const_iterator f = _patch_changes.find (p);
1139
1140         if (f != _patch_changes.end()) {
1141                 return f->second;
1142         }
1143
1144         return boost::shared_ptr<PatchChange>();
1145 }
1146
1147 boost::shared_ptr<SysEx>
1148 MidiRegionView::find_canvas_sys_ex (MidiModel::SysExPtr s)
1149 {
1150         SysExes::const_iterator f = _sys_exes.find (s);
1151
1152         if (f != _sys_exes.end()) {
1153                 return f->second;
1154         }
1155
1156         return boost::shared_ptr<SysEx>();
1157 }
1158
1159 void
1160 MidiRegionView::get_events (Events& e, Evoral::Sequence<Evoral::Beats>::NoteOperator op, uint8_t val, int chan_mask)
1161 {
1162         MidiModel::Notes notes;
1163         _model->get_notes (notes, op, val, chan_mask);
1164
1165         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1166                 NoteBase* cne = find_canvas_note (*n);
1167                 if (cne) {
1168                         e.insert (make_pair (*n, cne));
1169                 }
1170         }
1171 }
1172
1173 void
1174 MidiRegionView::redisplay_model()
1175 {
1176         if (_active_notes) {
1177                 // Currently recording
1178                 const framecnt_t zoom = trackview.editor().get_current_zoom();
1179                 if (zoom != _last_display_zoom) {
1180                         /* Update resolved canvas notes to reflect changes in zoom without
1181                            touching model.  Leave active notes (with length 0) alone since
1182                            they are being extended. */
1183                         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1184                                 if (i->second->note()->length() > 0) {
1185                                         update_note(i->second);
1186                                 }
1187                         }
1188                         _last_display_zoom = zoom;
1189                 }
1190                 return;
1191         }
1192
1193         if (!_model) {
1194                 return;
1195         }
1196
1197         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
1198                 _optimization_iterator->second->invalidate();
1199         }
1200
1201         bool empty_when_starting = _events.empty();
1202         _optimization_iterator = _events.begin();
1203         MidiModel::Notes missing_notes;
1204         Note* sus = NULL;
1205         Hit*  hit = NULL;
1206
1207         MidiModel::ReadLock lock(_model->read_lock());
1208         MidiModel::Notes& notes (_model->notes());
1209
1210         NoteBase* cne;
1211         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1212
1213                 boost::shared_ptr<NoteType> note (*n);
1214                 bool visible;
1215
1216                 if (note_in_region_range (note, visible)) {
1217                         if (!empty_when_starting && (cne = find_canvas_note (note)) != 0) {
1218                                 cne->validate ();
1219                                 if (visible) {
1220                                         cne->show ();
1221                                 } else {
1222                                         cne->hide ();
1223                                 }
1224                         } else {
1225                                 missing_notes.insert (note);
1226                         }
1227                 }
1228         }
1229
1230         if (!empty_when_starting) {
1231                 MidiModel::Notes::iterator f;
1232                 for (Events::iterator i = _events.begin(); i != _events.end(); ) {
1233
1234                         NoteBase* cne = i->second;
1235
1236                         /* remove note items that are no longer valid */
1237                         if (!cne->valid()) {
1238
1239                                 for (vector<GhostRegion*>::iterator j = ghosts.begin(); j != ghosts.end(); ++j) {
1240                                         MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*j);
1241                                         if (gr) {
1242                                                 gr->remove_note (cne);
1243                                         }
1244                                 }
1245
1246                                 delete cne;
1247                                 i = _events.erase (i);
1248
1249                         } else {
1250                                 bool visible = cne->item()->visible();
1251
1252                                 if ((sus = dynamic_cast<Note*>(cne))) {
1253
1254                                         if (visible) {
1255                                                 update_sustained (sus);
1256                                         }
1257
1258                                 } else if ((hit = dynamic_cast<Hit*>(cne))) {
1259
1260                                         if (visible) {
1261                                                 update_hit (hit);
1262                                         }
1263
1264                                 }
1265                                 ++i;
1266                         }
1267                 }
1268         }
1269
1270         for (MidiModel::Notes::iterator n = missing_notes.begin(); n != missing_notes.end(); ++n) {
1271                 boost::shared_ptr<NoteType> note (*n);
1272                 NoteBase* cne;
1273                 bool visible;
1274
1275                 if (note_in_region_range (note, visible)) {
1276                         if (visible) {
1277                                 cne = add_note (note, true);
1278                         } else {
1279                                 cne = add_note (note, false);
1280                         }
1281                 } else {
1282                         cne = add_note (note, false);
1283                 }
1284
1285                 for (set<Evoral::event_id_t>::iterator it = _pending_note_selection.begin(); it != _pending_note_selection.end(); ++it) {
1286                         if ((*it) == note->id()) {
1287                                 add_to_selection (cne);
1288                         }
1289                 }
1290         }
1291
1292         for (vector<GhostRegion*>::iterator j = ghosts.begin(); j != ghosts.end(); ++j) {
1293                 MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*j);
1294                 if (gr && !gr->trackview.hidden()) {
1295                         gr->redisplay_model ();
1296                 }
1297         }
1298
1299         display_sysexes();
1300         display_patch_changes ();
1301
1302         _marked_for_selection.clear ();
1303         _marked_for_velocity.clear ();
1304         _pending_note_selection.clear ();
1305
1306 }
1307
1308 void
1309 MidiRegionView::display_patch_changes ()
1310 {
1311         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1312         uint16_t chn_mask = mtv->midi_track()->get_playback_channel_mask();
1313
1314         for (uint8_t i = 0; i < 16; ++i) {
1315                 display_patch_changes_on_channel (i, chn_mask & (1 << i));
1316         }
1317 }
1318
1319 /** @param active_channel true to display patch changes fully, false to display
1320  * them `greyed-out' (as on an inactive channel)
1321  */
1322 void
1323 MidiRegionView::display_patch_changes_on_channel (uint8_t channel, bool active_channel)
1324 {
1325         for (MidiModel::PatchChanges::const_iterator i = _model->patch_changes().begin(); i != _model->patch_changes().end(); ++i) {
1326                 boost::shared_ptr<PatchChange> p;
1327
1328                 if ((*i)->channel() != channel) {
1329                         continue;
1330                 }
1331
1332                 if ((p = find_canvas_patch_change (*i)) != 0) {
1333
1334                         const framecnt_t region_frames = source_beats_to_region_frames ((*i)->time());
1335
1336                         if (region_frames < 0 || region_frames >= _region->length()) {
1337                                 p->hide();
1338                         } else {
1339                                 const double x = trackview.editor().sample_to_pixel (region_frames);
1340                                 const string patch_name = instrument_info().get_patch_name ((*i)->bank(), (*i)->program(), channel);
1341                                 p->canvas_item()->set_position (ArdourCanvas::Duple (x, 1.0));
1342                                 p->set_text (patch_name);
1343
1344                                 p->show();
1345                         }
1346
1347                 } else {
1348                         const string patch_name = instrument_info().get_patch_name ((*i)->bank(), (*i)->program(), channel);
1349                         add_canvas_patch_change (*i, patch_name, active_channel);
1350                 }
1351         }
1352 }
1353
1354 void
1355 MidiRegionView::display_sysexes()
1356 {
1357         bool have_periodic_system_messages = false;
1358         bool display_periodic_messages = true;
1359
1360         if (!UIConfiguration::instance().get_never_display_periodic_midi()) {
1361
1362                 for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1363                         if ((*i)->is_spp() || (*i)->is_mtc_quarter() || (*i)->is_mtc_full()) {
1364                                 have_periodic_system_messages = true;
1365                                 break;
1366                         }
1367                 }
1368
1369                 if (have_periodic_system_messages) {
1370                         double zoom = trackview.editor().get_current_zoom (); // frames per pixel
1371
1372                         /* get an approximate value for the number of samples per video frame */
1373
1374                         double video_frame = trackview.session()->frame_rate() * (1.0/30);
1375
1376                         /* if we are zoomed out beyond than the cutoff (i.e. more
1377                          * frames per pixel than frames per 4 video frames), don't
1378                          * show periodic sysex messages.
1379                          */
1380
1381                         if (zoom > (video_frame*4)) {
1382                                 display_periodic_messages = false;
1383                         }
1384                 }
1385         } else {
1386                 display_periodic_messages = false;
1387         }
1388
1389         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1390                 MidiModel::SysExPtr sysex_ptr = *i;
1391                 Evoral::Beats time = sysex_ptr->time();
1392
1393                 if ((*i)->is_spp() || (*i)->is_mtc_quarter() || (*i)->is_mtc_full()) {
1394                         if (!display_periodic_messages) {
1395                                 continue;
1396                         }
1397                 }
1398
1399                 ostringstream str;
1400                 str << hex;
1401                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
1402                         str << int((*i)->buffer()[b]);
1403                         if (b != (*i)->size() -1) {
1404                                 str << " ";
1405                         }
1406                 }
1407                 string text = str.str();
1408
1409                 const double x = trackview.editor().sample_to_pixel(source_beats_to_region_frames(time));
1410
1411                 double height = midi_stream_view()->contents_height();
1412
1413                 // CAIROCANVAS: no longer passing *i (the sysex event) to the
1414                 // SysEx canvas object!!!
1415                 boost::shared_ptr<SysEx> sysex = find_canvas_sys_ex (sysex_ptr);
1416
1417                 if (!sysex) {
1418                         sysex = boost::shared_ptr<SysEx>(
1419                                 new SysEx (*this, _note_group, text, height, x, 1.0, sysex_ptr));
1420                         _sys_exes.insert (make_pair (sysex_ptr, sysex));
1421                 } else {
1422                         sysex->set_height (height);
1423                         sysex->item().set_position (ArdourCanvas::Duple (x, 1.0));
1424                 }
1425
1426                 // Show unless message is beyond the region bounds
1427                 if (time - _region->start() >= _region->length() || time < _region->start()) {
1428                         sysex->hide();
1429                 } else {
1430                         sysex->show();
1431                 }
1432         }
1433 }
1434
1435 MidiRegionView::~MidiRegionView ()
1436 {
1437         in_destructor = true;
1438
1439         hide_verbose_cursor ();
1440
1441         delete _list_editor;
1442
1443         RegionViewGoingAway (this); /* EMIT_SIGNAL */
1444
1445         if (_active_notes) {
1446                 end_write();
1447         }
1448         _entered_note = 0;
1449         clear_events ();
1450
1451         delete _note_group;
1452         delete _note_diff_command;
1453         delete _step_edit_cursor;
1454 }
1455
1456 void
1457 MidiRegionView::region_resized (const PropertyChange& what_changed)
1458 {
1459         RegionView::region_resized(what_changed); // calls RegionView::set_duration()
1460
1461         if (what_changed.contains (ARDOUR::Properties::position)) {
1462                 _region_relative_time_converter.set_origin_b(_region->position());
1463                 _region_relative_time_converter_double.set_origin_b(_region->position());
1464                 /* reset_width dependent_items() redisplays model */
1465
1466         }
1467
1468         if (what_changed.contains (ARDOUR::Properties::start) ||
1469             what_changed.contains (ARDOUR::Properties::position)) {
1470                 _source_relative_time_converter.set_origin_b (_region->position() - _region->start());
1471         }
1472         /* catch end and start trim so we can update the view*/
1473         if (!what_changed.contains (ARDOUR::Properties::start) &&
1474             what_changed.contains (ARDOUR::Properties::length)) {
1475                 enable_display (true);
1476         } else if (what_changed.contains (ARDOUR::Properties::start) &&
1477             what_changed.contains (ARDOUR::Properties::length)) {
1478                 enable_display (true);
1479         }
1480 }
1481
1482 void
1483 MidiRegionView::reset_width_dependent_items (double pixel_width)
1484 {
1485         RegionView::reset_width_dependent_items(pixel_width);
1486
1487         if (_enable_display) {
1488                 redisplay_model();
1489         }
1490
1491         bool hide_all = false;
1492         PatchChanges::iterator x = _patch_changes.begin();
1493         if (x != _patch_changes.end()) {
1494                 hide_all = x->second->width() >= _pixel_width;
1495         }
1496
1497         if (hide_all) {
1498                 for (; x != _patch_changes.end(); ++x) {
1499                         x->second->hide();
1500                 }
1501         }
1502
1503         move_step_edit_cursor (_step_edit_cursor_position);
1504         set_step_edit_cursor_width (_step_edit_cursor_width);
1505 }
1506
1507 void
1508 MidiRegionView::set_height (double height)
1509 {
1510         double old_height = _height;
1511         RegionView::set_height(height);
1512
1513         apply_note_range (midi_stream_view()->lowest_note(),
1514                           midi_stream_view()->highest_note(),
1515                           height != old_height);
1516
1517         if (name_text) {
1518                 name_text->raise_to_top();
1519         }
1520
1521         for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
1522                 (*x).second->set_height (midi_stream_view()->contents_height());
1523         }
1524
1525         if (_step_edit_cursor) {
1526                 _step_edit_cursor->set_y1 (midi_stream_view()->contents_height());
1527         }
1528 }
1529
1530
1531 /** Apply the current note range from the stream view
1532  * by repositioning/hiding notes as necessary
1533  */
1534 void
1535 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1536 {
1537         if (!_enable_display) {
1538                 return;
1539         }
1540
1541         if (!force && _current_range_min == min && _current_range_max == max) {
1542                 return;
1543         }
1544
1545         _current_range_min = min;
1546         _current_range_max = max;
1547
1548         redisplay_model ();
1549 }
1550
1551 GhostRegion*
1552 MidiRegionView::add_ghost (TimeAxisView& tv)
1553 {
1554         double unit_position = _region->position () / samples_per_pixel;
1555         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1556         MidiGhostRegion* ghost;
1557
1558         if (mtv && mtv->midi_view()) {
1559                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1560                    to allow having midi notes on top of note lines and waveforms.
1561                 */
1562                 ghost = new MidiGhostRegion (*this, *mtv->midi_view(), trackview, unit_position);
1563         } else {
1564                 ghost = new MidiGhostRegion (*this, tv, trackview, unit_position);
1565         }
1566
1567         ghost->set_colors ();
1568         ghost->set_height ();
1569         ghost->set_duration (_region->length() / samples_per_pixel);
1570
1571         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1572                 ghost->add_note(i->second);
1573         }
1574
1575         ghosts.push_back (ghost);
1576         enable_display (true);
1577         return ghost;
1578 }
1579
1580
1581 /** Begin tracking note state for successive calls to add_event
1582  */
1583 void
1584 MidiRegionView::begin_write()
1585 {
1586         if (_active_notes) {
1587                 delete[] _active_notes;
1588         }
1589         _active_notes = new Note*[128];
1590         for (unsigned i = 0; i < 128; ++i) {
1591                 _active_notes[i] = 0;
1592         }
1593 }
1594
1595
1596 /** Destroy note state for add_event
1597  */
1598 void
1599 MidiRegionView::end_write()
1600 {
1601         delete[] _active_notes;
1602         _active_notes = 0;
1603         _marked_for_selection.clear();
1604         _marked_for_velocity.clear();
1605 }
1606
1607
1608 /** Resolve an active MIDI note (while recording).
1609  */
1610 void
1611 MidiRegionView::resolve_note(uint8_t note, Evoral::Beats end_time)
1612 {
1613         if (midi_view()->note_mode() != Sustained) {
1614                 return;
1615         }
1616
1617         if (_active_notes && _active_notes[note]) {
1618                 /* Set note length so update_note() works.  Note this is a local note
1619                    for recording, not from a model, so we can safely mess with it. */
1620                 _active_notes[note]->note()->set_length(
1621                         end_time - _active_notes[note]->note()->time());
1622
1623                 /* End time is relative to the region being recorded. */
1624                 const framepos_t end_time_frames = region_beats_to_region_frames(end_time);
1625
1626                 _active_notes[note]->set_x1 (trackview.editor().sample_to_pixel(end_time_frames));
1627                 _active_notes[note]->set_outline_all ();
1628                 _active_notes[note] = 0;
1629         }
1630 }
1631
1632
1633 /** Extend active notes to rightmost edge of region (if length is changed)
1634  */
1635 void
1636 MidiRegionView::extend_active_notes()
1637 {
1638         if (!_active_notes) {
1639                 return;
1640         }
1641
1642         for (unsigned i = 0; i < 128; ++i) {
1643                 if (_active_notes[i]) {
1644                         _active_notes[i]->set_x1(
1645                                 trackview.editor().sample_to_pixel(_region->length()));
1646                 }
1647         }
1648 }
1649
1650 void
1651 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1652 {
1653         if (_no_sound_notes || !UIConfiguration::instance().get_sound_midi_notes()) {
1654                 return;
1655         }
1656
1657         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1658
1659         if (!route_ui || !route_ui->midi_track()) {
1660                 return;
1661         }
1662
1663         NotePlayer* np = new NotePlayer (route_ui->midi_track ());
1664         np->add (note);
1665         np->play ();
1666
1667         /* NotePlayer deletes itself */
1668 }
1669
1670 void
1671 MidiRegionView::start_playing_midi_note(boost::shared_ptr<NoteType> note)
1672 {
1673         const std::vector< boost::shared_ptr<NoteType> > notes(1, note);
1674         start_playing_midi_chord(notes);
1675 }
1676
1677 void
1678 MidiRegionView::start_playing_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
1679 {
1680         if (_no_sound_notes || !UIConfiguration::instance().get_sound_midi_notes()) {
1681                 return;
1682         }
1683
1684         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1685
1686         if (!route_ui || !route_ui->midi_track()) {
1687                 return;
1688         }
1689
1690         NotePlayer* player = new NotePlayer (route_ui->midi_track());
1691
1692         for (vector<boost::shared_ptr<NoteType> >::iterator n = notes.begin(); n != notes.end(); ++n) {
1693                 player->add (*n);
1694         }
1695
1696         player->play ();
1697 }
1698
1699
1700 bool
1701 MidiRegionView::note_in_region_range (const boost::shared_ptr<NoteType> note, bool& visible) const
1702 {
1703         const boost::shared_ptr<ARDOUR::MidiRegion> midi_reg = midi_region();
1704
1705         /* must compare double explicitly as Beats::operator< rounds to ppqn */
1706         const bool outside = (note->time().to_double() < midi_reg->start_beats() ||
1707                               note->time().to_double() >= midi_reg->start_beats() + midi_reg->length_beats());
1708
1709         visible = (note->note() >= _current_range_min) &&
1710                 (note->note() <= _current_range_max);
1711
1712         return !outside;
1713 }
1714
1715 void
1716 MidiRegionView::update_note (NoteBase* note, bool update_ghost_regions)
1717 {
1718         Note* sus = NULL;
1719         Hit*  hit = NULL;
1720         if ((sus = dynamic_cast<Note*>(note))) {
1721                 update_sustained(sus, update_ghost_regions);
1722         } else if ((hit = dynamic_cast<Hit*>(note))) {
1723                 update_hit(hit, update_ghost_regions);
1724         }
1725 }
1726
1727 /** Update a canvas note's size from its model note.
1728  *  @param ev Canvas note to update.
1729  *  @param update_ghost_regions true to update the note in any ghost regions that we have, otherwise false.
1730  */
1731 void
1732 MidiRegionView::update_sustained (Note* ev, bool update_ghost_regions)
1733 {
1734         TempoMap& map (trackview.session()->tempo_map());
1735         const boost::shared_ptr<ARDOUR::MidiRegion> mr = midi_region();
1736         boost::shared_ptr<NoteType> note = ev->note();
1737
1738         const double session_source_start = _region->quarter_note() - mr->start_beats();
1739         const framepos_t note_start_frames = map.frame_at_quarter_note (note->time().to_double() + session_source_start) - _region->position();
1740
1741         const double x0 = trackview.editor().sample_to_pixel (note_start_frames);
1742         double x1;
1743         const double y0 = 1 + floor(note_to_y(note->note()));
1744         double y1;
1745
1746         /* trim note display to not overlap the end of its region */
1747         if (note->length().to_double() > 0.0) {
1748                 double note_end_time = note->end_time().to_double();
1749
1750                 if (note_end_time > mr->start_beats() + mr->length_beats()) {
1751                         note_end_time = mr->start_beats() + mr->length_beats();
1752                 }
1753
1754                 const framepos_t note_end_frames = map.frame_at_quarter_note (session_source_start + note_end_time) - _region->position();
1755
1756                 x1 = std::max(1., trackview.editor().sample_to_pixel (note_end_frames)) - 1;
1757         } else {
1758                 x1 = std::max(1., trackview.editor().sample_to_pixel (_region->length())) - 1;
1759         }
1760
1761         y1 = y0 + std::max(1., floor(note_height()) - 1);
1762
1763         ev->set (ArdourCanvas::Rect (x0, y0, x1, y1));
1764
1765         if (!note->length()) {
1766                 if (_active_notes && note->note() < 128) {
1767                         Note* const old_rect = _active_notes[note->note()];
1768                         if (old_rect) {
1769                                 /* There is an active note on this key, so we have a stuck
1770                                    note.  Finish the old rectangle here. */
1771                                 old_rect->set_x1 (x1);
1772                                 old_rect->set_outline_all ();
1773                         }
1774                         _active_notes[note->note()] = ev;
1775                 }
1776                 /* outline all but right edge */
1777                 ev->set_outline_what (ArdourCanvas::Rectangle::What (
1778                                               ArdourCanvas::Rectangle::TOP|
1779                                               ArdourCanvas::Rectangle::LEFT|
1780                                               ArdourCanvas::Rectangle::BOTTOM));
1781         } else {
1782                 /* outline all edges */
1783                 ev->set_outline_all ();
1784         }
1785
1786         // Update color in case velocity has changed
1787         const uint32_t base_col = ev->base_color();
1788         ev->set_fill_color(base_col);
1789         ev->set_outline_color(ev->calculate_outline(base_col, ev->selected()));
1790
1791 }
1792
1793 void
1794 MidiRegionView::update_hit (Hit* ev, bool update_ghost_regions)
1795 {
1796         boost::shared_ptr<NoteType> note = ev->note();
1797
1798         const double note_time_qn = note->time().to_double() + (_region->quarter_note() - midi_region()->start_beats());
1799         const framepos_t note_start_frames = trackview.session()->tempo_map().frame_at_quarter_note (note_time_qn) - _region->position();
1800
1801         const double x = trackview.editor().sample_to_pixel(note_start_frames);
1802         const double diamond_size = std::max(1., floor(note_height()) - 2.);
1803         const double y = 1.5 + floor(note_to_y(note->note())) + diamond_size * .5;
1804
1805         // see DnD note in MidiRegionView::apply_note_range() above
1806         if (y <= 0 || y >= _height) {
1807                 ev->hide();
1808         } else {
1809                 ev->show();
1810         }
1811
1812         ev->set_position (ArdourCanvas::Duple (x, y));
1813         ev->set_height (diamond_size);
1814
1815         // Update color in case velocity has changed
1816         const uint32_t base_col = ev->base_color();
1817         ev->set_fill_color(base_col);
1818         ev->set_outline_color(ev->calculate_outline(base_col, ev->selected()));
1819
1820 }
1821
1822 /** Add a MIDI note to the view (with length).
1823  *
1824  * If in sustained mode, notes with length 0 will be considered active
1825  * notes, and resolve_note should be called when the corresponding note off
1826  * event arrives, to properly display the note.
1827  */
1828 NoteBase*
1829 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1830 {
1831         NoteBase* event = 0;
1832
1833         if (midi_view()->note_mode() == Sustained) {
1834
1835                 Note* ev_rect = new Note (*this, _note_group, note); // XXX may leak
1836
1837                 update_sustained (ev_rect);
1838
1839                 event = ev_rect;
1840
1841         } else if (midi_view()->note_mode() == Percussive) {
1842
1843                 const double diamond_size = std::max(1., floor(note_height()) - 2.);
1844
1845                 Hit* ev_diamond = new Hit (*this, _note_group, diamond_size, note); // XXX may leak
1846
1847                 update_hit (ev_diamond);
1848
1849                 event = ev_diamond;
1850
1851         } else {
1852                 event = 0;
1853         }
1854
1855         if (event) {
1856                 MidiGhostRegion* gr;
1857
1858                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1859                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1860                                 gr->add_note(event);
1861                         }
1862                 }
1863
1864                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1865                         note_selected(event, true);
1866                 }
1867
1868                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1869                         event->show_velocity();
1870                 }
1871
1872                 event->on_channel_selection_change (get_selected_channels());
1873                 _events.insert (make_pair (event->note(), event));
1874
1875                 if (visible) {
1876                         event->show();
1877                 } else {
1878                         event->hide ();
1879                 }
1880         }
1881
1882         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1883         MidiStreamView* const view = mtv->midi_view();
1884
1885         view->update_note_range (note->note());
1886         return event;
1887 }
1888
1889 void
1890 MidiRegionView::step_add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1891                                Evoral::Beats pos, Evoral::Beats len)
1892 {
1893         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1894
1895         /* potentially extend region to hold new note */
1896
1897         framepos_t end_frame = source_beats_to_absolute_frames (new_note->end_time());
1898         framepos_t region_end = _region->last_frame();
1899
1900         if (end_frame > region_end) {
1901                 /* XX sets length in beats from audio space. make musical */
1902                 _region->set_length (end_frame - _region->position(), 0);
1903         }
1904
1905         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1906         MidiStreamView* const view = mtv->midi_view();
1907
1908         view->update_note_range(new_note->note());
1909
1910         _marked_for_selection.clear ();
1911
1912         start_note_diff_command (_("step add"));
1913
1914         clear_editor_note_selection ();
1915         note_diff_add_note (new_note, true, false);
1916
1917         apply_diff();
1918
1919         // last_step_edit_note = new_note;
1920 }
1921
1922 void
1923 MidiRegionView::step_sustain (Evoral::Beats beats)
1924 {
1925         change_note_lengths (false, false, beats, false, true);
1926 }
1927
1928 /** Add a new patch change flag to the canvas.
1929  * @param patch the patch change to add
1930  * @param the text to display in the flag
1931  * @param active_channel true to display the flag as on an active channel, false to grey it out for an inactive channel.
1932  */
1933 void
1934 MidiRegionView::add_canvas_patch_change (MidiModel::PatchChangePtr patch, const string& displaytext, bool /*active_channel*/)
1935 {
1936         framecnt_t region_frames = source_beats_to_region_frames (patch->time());
1937         const double x = trackview.editor().sample_to_pixel (region_frames);
1938
1939         double const height = midi_stream_view()->contents_height();
1940
1941         // CAIROCANVAS: active_channel info removed from PatcChange constructor
1942         // so we need to do something more sophisticated to keep its color
1943         // appearance (MidiPatchChangeFill/MidiPatchChangeInactiveChannelFill)
1944         // up to date.
1945         boost::shared_ptr<PatchChange> patch_change = boost::shared_ptr<PatchChange>(
1946                 new PatchChange(*this, group,
1947                                 displaytext,
1948                                 height,
1949                                 x, 1.0,
1950                                 instrument_info(),
1951                                 patch,
1952                                 _patch_change_outline,
1953                                 _patch_change_fill)
1954                 );
1955
1956         if (patch_change->item().width() < _pixel_width) {
1957                 // Show unless patch change is beyond the region bounds
1958                 if (region_frames < 0 || region_frames >= _region->length()) {
1959                         patch_change->hide();
1960                 } else {
1961                         patch_change->show();
1962                 }
1963         } else {
1964                 patch_change->hide ();
1965         }
1966
1967         _patch_changes.insert (make_pair (patch, patch_change));
1968 }
1969
1970 void
1971 MidiRegionView::remove_canvas_patch_change (PatchChange* pc)
1972 {
1973         /* remove the canvas item */
1974         for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
1975                 if (x->second->patch() == pc->patch()) {
1976                         _patch_changes.erase (x);
1977                         break;
1978                 }
1979         }
1980 }
1981
1982 MIDI::Name::PatchPrimaryKey
1983 MidiRegionView::patch_change_to_patch_key (MidiModel::PatchChangePtr p)
1984 {
1985         return MIDI::Name::PatchPrimaryKey (p->program(), p->bank());
1986 }
1987
1988 /// Return true iff @p pc applies to the given time on the given channel.
1989 static bool
1990 patch_applies (const ARDOUR::MidiModel::constPatchChangePtr pc, Evoral::Beats time, uint8_t channel)
1991 {
1992         return pc->time() <= time && pc->channel() == channel;
1993 }
1994
1995 void
1996 MidiRegionView::get_patch_key_at (Evoral::Beats time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key) const
1997 {
1998         // The earliest event not before time
1999         MidiModel::PatchChanges::iterator i = _model->patch_change_lower_bound (time);
2000
2001         // Go backwards until we find the latest PC for this channel, or the start
2002         while (i != _model->patch_changes().begin() &&
2003                (i == _model->patch_changes().end() ||
2004                 !patch_applies(*i, time, channel))) {
2005                 --i;
2006         }
2007
2008         if (i != _model->patch_changes().end() && patch_applies(*i, time, channel)) {
2009                 key.set_bank((*i)->bank());
2010                 key.set_program((*i)->program ());
2011         } else {
2012                 key.set_bank(0);
2013                 key.set_program(0);
2014         }
2015 }
2016
2017 void
2018 MidiRegionView::change_patch_change (PatchChange& pc, const MIDI::Name::PatchPrimaryKey& new_patch)
2019 {
2020         string name = _("alter patch change");
2021         trackview.editor().begin_reversible_command (name);
2022
2023         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (name);
2024
2025         if (pc.patch()->program() != new_patch.program()) {
2026                 c->change_program (pc.patch (), new_patch.program());
2027         }
2028
2029         int const new_bank = new_patch.bank();
2030         if (pc.patch()->bank() != new_bank) {
2031                 c->change_bank (pc.patch (), new_bank);
2032         }
2033
2034         _model->apply_command (*trackview.session(), c);
2035         trackview.editor().commit_reversible_command ();
2036
2037         remove_canvas_patch_change (&pc);
2038         display_patch_changes ();
2039 }
2040
2041 void
2042 MidiRegionView::change_patch_change (MidiModel::PatchChangePtr old_change, const Evoral::PatchChange<Evoral::Beats> & new_change)
2043 {
2044         string name = _("alter patch change");
2045         trackview.editor().begin_reversible_command (name);
2046         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (name);
2047
2048         if (old_change->time() != new_change.time()) {
2049                 c->change_time (old_change, new_change.time());
2050         }
2051
2052         if (old_change->channel() != new_change.channel()) {
2053                 c->change_channel (old_change, new_change.channel());
2054         }
2055
2056         if (old_change->program() != new_change.program()) {
2057                 c->change_program (old_change, new_change.program());
2058         }
2059
2060         if (old_change->bank() != new_change.bank()) {
2061                 c->change_bank (old_change, new_change.bank());
2062         }
2063
2064         _model->apply_command (*trackview.session(), c);
2065         trackview.editor().commit_reversible_command ();
2066
2067         for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
2068                 if (x->second->patch() == old_change) {
2069                         _patch_changes.erase (x);
2070                         break;
2071                 }
2072         }
2073
2074         display_patch_changes ();
2075 }
2076
2077 /** Add a patch change to the region.
2078  *  @param t Time in frames relative to region position
2079  *  @param patch Patch to add; time and channel are ignored (time is converted from t, and channel comes from
2080  *  MidiTimeAxisView::get_channel_for_add())
2081  */
2082 void
2083 MidiRegionView::add_patch_change (framecnt_t t, Evoral::PatchChange<Evoral::Beats> const & patch)
2084 {
2085         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
2086         string name = _("add patch change");
2087
2088         trackview.editor().begin_reversible_command (name);
2089         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (name);
2090         c->add (MidiModel::PatchChangePtr (
2091                         new Evoral::PatchChange<Evoral::Beats> (
2092                                 absolute_frames_to_source_beats (_region->position() + t),
2093                                 mtv->get_channel_for_add(), patch.program(), patch.bank()
2094                                 )
2095                         )
2096                 );
2097
2098         _model->apply_command (*trackview.session(), c);
2099         trackview.editor().commit_reversible_command ();
2100
2101         display_patch_changes ();
2102 }
2103
2104 void
2105 MidiRegionView::move_patch_change (PatchChange& pc, Evoral::Beats t)
2106 {
2107         trackview.editor().begin_reversible_command (_("move patch change"));
2108         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("move patch change"));
2109         c->change_time (pc.patch (), t);
2110         _model->apply_command (*trackview.session(), c);
2111         trackview.editor().commit_reversible_command ();
2112
2113         display_patch_changes ();
2114 }
2115
2116 void
2117 MidiRegionView::delete_patch_change (PatchChange* pc)
2118 {
2119         trackview.editor().begin_reversible_command (_("delete patch change"));
2120
2121         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("delete patch change"));
2122         c->remove (pc->patch ());
2123         _model->apply_command (*trackview.session(), c);
2124         trackview.editor().commit_reversible_command ();
2125
2126         remove_canvas_patch_change (pc);
2127         display_patch_changes ();
2128 }
2129
2130 void
2131 MidiRegionView::step_patch (PatchChange& patch, bool bank, int delta)
2132 {
2133         MIDI::Name::PatchPrimaryKey key = patch_change_to_patch_key(patch.patch());
2134         if (bank) {
2135                 key.set_bank(key.bank() + delta);
2136         } else {
2137                 key.set_program(key.program() + delta);
2138         }
2139         change_patch_change(patch, key);
2140 }
2141
2142 void
2143 MidiRegionView::note_deleted (NoteBase* cne)
2144 {
2145         if (_entered_note && cne == _entered_note) {
2146                 _entered_note = 0;
2147         }
2148
2149         if (_selection.empty()) {
2150                 return;
2151         }
2152
2153         _selection.erase (cne);
2154 }
2155
2156 void
2157 MidiRegionView::delete_selection()
2158 {
2159         if (_selection.empty()) {
2160                 return;
2161         }
2162
2163         if (trackview.editor().drags()->active()) {
2164                 return;
2165         }
2166
2167         start_note_diff_command (_("delete selection"));
2168
2169         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2170                 if ((*i)->selected()) {
2171                         _note_diff_command->remove((*i)->note());
2172                 }
2173         }
2174
2175         _selection.clear();
2176
2177         apply_diff ();
2178
2179         hide_verbose_cursor ();
2180 }
2181
2182 void
2183 MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
2184 {
2185         start_note_diff_command (_("delete note"));
2186         _note_diff_command->remove (n);
2187         apply_diff ();
2188
2189         hide_verbose_cursor ();
2190 }
2191
2192 void
2193 MidiRegionView::clear_editor_note_selection ()
2194 {
2195         DEBUG_TRACE(DEBUG::Selection, "MRV::clear_editor_note_selection\n");
2196         PublicEditor& editor(trackview.editor());
2197         editor.get_selection().clear_midi_notes();
2198 }
2199
2200 void
2201 MidiRegionView::clear_selection ()
2202 {
2203         clear_selection_internal();
2204         PublicEditor& editor(trackview.editor());
2205         editor.get_selection().remove(this);
2206 }
2207
2208 void
2209 MidiRegionView::clear_selection_internal ()
2210 {
2211         DEBUG_TRACE(DEBUG::Selection, "MRV::clear_selection_internal\n");
2212
2213         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2214                 (*i)->set_selected(false);
2215                 (*i)->hide_velocity();
2216         }
2217         _selection.clear();
2218
2219         if (_entered) {
2220                 // Clearing selection entirely, ungrab keyboard
2221                 Keyboard::magic_widget_drop_focus();
2222                 _grabbed_keyboard = false;
2223         }
2224 }
2225
2226 void
2227 MidiRegionView::unique_select(NoteBase* ev)
2228 {
2229         clear_editor_note_selection();
2230         add_to_selection(ev);
2231 }
2232
2233 void
2234 MidiRegionView::select_all_notes ()
2235 {
2236         clear_editor_note_selection ();
2237
2238         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2239                 add_to_selection (i->second);
2240         }
2241 }
2242
2243 void
2244 MidiRegionView::select_range (framepos_t start, framepos_t end)
2245 {
2246         clear_editor_note_selection ();
2247
2248         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2249                 framepos_t t = source_beats_to_absolute_frames(i->first->time());
2250                 if (t >= start && t <= end) {
2251                         add_to_selection (i->second);
2252                 }
2253         }
2254 }
2255
2256 void
2257 MidiRegionView::invert_selection ()
2258 {
2259         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2260                 if (i->second->selected()) {
2261                         remove_from_selection(i->second);
2262                 } else {
2263                         add_to_selection (i->second);
2264                 }
2265         }
2266 }
2267
2268 /** Used for selection undo/redo.
2269     The requested notes most likely won't exist in the view until the next model redisplay.
2270 */
2271 void
2272 MidiRegionView::select_notes (list<Evoral::event_id_t> notes)
2273 {
2274         NoteBase* cne;
2275         list<Evoral::event_id_t>::iterator n;
2276
2277         for (n = notes.begin(); n != notes.end(); ++n) {
2278                 if ((cne = find_canvas_note(*n)) != 0) {
2279                         add_to_selection (cne);
2280                 } else {
2281                         _pending_note_selection.insert(*n);
2282                 }
2283         }
2284 }
2285
2286 void
2287 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
2288 {
2289         bool have_selection = !_selection.empty();
2290         uint8_t low_note = 127;
2291         uint8_t high_note = 0;
2292         MidiModel::Notes& notes (_model->notes());
2293         _optimization_iterator = _events.begin();
2294
2295         if (extend && !have_selection) {
2296                 extend = false;
2297         }
2298
2299         /* scan existing selection to get note range */
2300
2301         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2302                 if ((*i)->note()->note() < low_note) {
2303                         low_note = (*i)->note()->note();
2304                 }
2305                 if ((*i)->note()->note() > high_note) {
2306                         high_note = (*i)->note()->note();
2307                 }
2308         }
2309
2310         if (!add) {
2311                 clear_editor_note_selection ();
2312
2313                 if (!extend && (low_note == high_note) && (high_note == notenum)) {
2314                         /* only note previously selected is the one we are
2315                          * reselecting. treat this as cancelling the selection.
2316                          */
2317                         return;
2318                 }
2319         }
2320
2321         if (extend) {
2322                 low_note = min (low_note, notenum);
2323                 high_note = max (high_note, notenum);
2324         }
2325
2326         _no_sound_notes = true;
2327
2328         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
2329
2330                 boost::shared_ptr<NoteType> note (*n);
2331                 NoteBase* cne;
2332                 bool select = false;
2333
2334                 if (((1 << note->channel()) & channel_mask) != 0) {
2335                         if (extend) {
2336                                 if ((note->note() >= low_note && note->note() <= high_note)) {
2337                                         select = true;
2338                                 }
2339                         } else if (note->note() == notenum) {
2340                                 select = true;
2341                         }
2342                 }
2343
2344                 if (select) {
2345                         if ((cne = find_canvas_note (note)) != 0) {
2346                                 // extend is false because we've taken care of it,
2347                                 // since it extends by time range, not pitch.
2348                                 note_selected (cne, add, false);
2349                         }
2350                 }
2351
2352                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
2353
2354         }
2355
2356         _no_sound_notes = false;
2357 }
2358
2359 void
2360 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
2361 {
2362         MidiModel::Notes& notes (_model->notes());
2363         _optimization_iterator = _events.begin();
2364
2365         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
2366
2367                 boost::shared_ptr<NoteType> note (*n);
2368                 NoteBase* cne;
2369
2370                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
2371                         if ((cne = find_canvas_note (note)) != 0) {
2372                                 if (cne->selected()) {
2373                                         note_deselected (cne);
2374                                 } else {
2375                                         note_selected (cne, true, false);
2376                                 }
2377                         }
2378                 }
2379         }
2380 }
2381
2382 void
2383 MidiRegionView::note_selected (NoteBase* ev, bool add, bool extend)
2384 {
2385         if (!add) {
2386                 clear_editor_note_selection();
2387                 add_to_selection (ev);
2388         }
2389
2390         if (!extend) {
2391
2392                 if (!ev->selected()) {
2393                         add_to_selection (ev);
2394                 }
2395
2396         } else {
2397                 /* find end of latest note selected, select all between that and the start of "ev" */
2398
2399                 Evoral::Beats earliest = Evoral::MaxBeats;
2400                 Evoral::Beats latest   = Evoral::Beats();
2401
2402                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2403                         if ((*i)->note()->end_time() > latest) {
2404                                 latest = (*i)->note()->end_time();
2405                         }
2406                         if ((*i)->note()->time() < earliest) {
2407                                 earliest = (*i)->note()->time();
2408                         }
2409                 }
2410
2411                 if (ev->note()->end_time() > latest) {
2412                         latest = ev->note()->end_time();
2413                 }
2414
2415                 if (ev->note()->time() < earliest) {
2416                         earliest = ev->note()->time();
2417                 }
2418
2419                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2420
2421                         /* find notes entirely within OR spanning the earliest..latest range */
2422
2423                         if ((i->first->time() >= earliest && i->first->end_time() <= latest) ||
2424                             (i->first->time() <= earliest && i->first->end_time() >= latest)) {
2425                                 add_to_selection (i->second);
2426                         }
2427                 }
2428         }
2429 }
2430
2431 void
2432 MidiRegionView::note_deselected(NoteBase* ev)
2433 {
2434         remove_from_selection (ev);
2435 }
2436
2437 void
2438 MidiRegionView::update_drag_selection(framepos_t start, framepos_t end, double gy0, double gy1, bool extend)
2439 {
2440         PublicEditor& editor = trackview.editor();
2441
2442         // Convert to local coordinates
2443         const framepos_t p  = _region->position();
2444         const double     y  = midi_view()->y_position();
2445         const double     x0 = editor.sample_to_pixel(max((framepos_t)0, start - p));
2446         const double     x1 = editor.sample_to_pixel(max((framepos_t)0, end - p));
2447         const double     y0 = max(0.0, gy0 - y);
2448         const double     y1 = max(0.0, gy1 - y);
2449
2450         // TODO: Make this faster by storing the last updated selection rect, and only
2451         // adjusting things that are in the area that appears/disappeared.
2452         // We probably need a tree to be able to find events in O(log(n)) time.
2453
2454         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2455                 if (i->second->x0() < x1 && i->second->x1() > x0 && i->second->y0() < y1 && i->second->y1() > y0) {
2456                         // Rectangles intersect
2457                         if (!i->second->selected()) {
2458                                 add_to_selection (i->second);
2459                         }
2460                 } else if (i->second->selected() && !extend) {
2461                         // Rectangles do not intersect
2462                         remove_from_selection (i->second);
2463                 }
2464         }
2465
2466         typedef RouteTimeAxisView::AutomationTracks ATracks;
2467         typedef std::list<Selectable*>              Selectables;
2468
2469         /* Add control points to selection. */
2470         const ATracks& atracks = midi_view()->automation_tracks();
2471         Selectables    selectables;
2472         editor.get_selection().clear_points();
2473         for (ATracks::const_iterator a = atracks.begin(); a != atracks.end(); ++a) {
2474                 a->second->get_selectables(start, end, gy0, gy1, selectables);
2475                 for (Selectables::const_iterator s = selectables.begin(); s != selectables.end(); ++s) {
2476                         ControlPoint* cp = dynamic_cast<ControlPoint*>(*s);
2477                         if (cp) {
2478                                 editor.get_selection().add(cp);
2479                         }
2480                 }
2481                 a->second->set_selected_points(editor.get_selection().points);
2482         }
2483 }
2484
2485 void
2486 MidiRegionView::update_vertical_drag_selection (double y1, double y2, bool extend)
2487 {
2488         if (y1 > y2) {
2489                 swap (y1, y2);
2490         }
2491
2492         // TODO: Make this faster by storing the last updated selection rect, and only
2493         // adjusting things that are in the area that appears/disappeared.
2494         // We probably need a tree to be able to find events in O(log(n)) time.
2495
2496         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2497                 if ((i->second->y1() >= y1 && i->second->y1() <= y2)) {
2498                         // within y- (note-) range
2499                         if (!i->second->selected()) {
2500                                 add_to_selection (i->second);
2501                         }
2502                 } else if (i->second->selected() && !extend) {
2503                         remove_from_selection (i->second);
2504                 }
2505         }
2506 }
2507
2508 void
2509 MidiRegionView::remove_from_selection (NoteBase* ev)
2510 {
2511         Selection::iterator i = _selection.find (ev);
2512
2513         if (i != _selection.end()) {
2514                 _selection.erase (i);
2515                 if (_selection.empty() && _grabbed_keyboard) {
2516                         // Ungrab keyboard
2517                         Keyboard::magic_widget_drop_focus();
2518                         _grabbed_keyboard = false;
2519                 }
2520         }
2521
2522         ev->set_selected (false);
2523         ev->hide_velocity ();
2524
2525         if (_selection.empty()) {
2526                 PublicEditor& editor (trackview.editor());
2527                 editor.get_selection().remove (this);
2528         }
2529 }
2530
2531 void
2532 MidiRegionView::add_to_selection (NoteBase* ev)
2533 {
2534         const bool selection_was_empty = _selection.empty();
2535
2536         if (_selection.insert (ev).second) {
2537                 ev->set_selected (true);
2538                 start_playing_midi_note ((ev)->note());
2539                 if (selection_was_empty && _entered) {
2540                         // Grab keyboard for moving notes with arrow keys
2541                         Keyboard::magic_widget_grab_focus();
2542                         _grabbed_keyboard = true;
2543                 }
2544         }
2545
2546         if (selection_was_empty) {
2547                 PublicEditor& editor (trackview.editor());
2548                 editor.get_selection().add (this);
2549         }
2550 }
2551
2552 Evoral::Beats
2553 MidiRegionView::earliest_in_selection ()
2554 {
2555         Evoral::Beats earliest = Evoral::MaxBeats;
2556
2557         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2558                 if ((*i)->note()->time() < earliest) {
2559                         earliest = (*i)->note()->time();
2560                 }
2561         }
2562
2563         return earliest;
2564 }
2565
2566 void
2567 MidiRegionView::move_selection(double dx_qn, double dy, double cumulative_dy)
2568 {
2569         typedef vector<boost::shared_ptr<NoteType> > PossibleChord;
2570         Editor* editor = dynamic_cast<Editor*> (&trackview.editor());
2571         TempoMap& tmap (editor->session()->tempo_map());
2572         PossibleChord to_play;
2573         Evoral::Beats earliest = earliest_in_selection();
2574
2575         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2576                 NoteBase* n = *i;
2577                 if (n->note()->time() == earliest) {
2578                         to_play.push_back (n->note());
2579                 }
2580                 double const note_time_qn = session_relative_qn (n->note()->time().to_double());
2581                 double dx = 0.0;
2582                 if (midi_view()->note_mode() == Sustained) {
2583                         dx = editor->sample_to_pixel_unrounded (tmap.frame_at_quarter_note (note_time_qn + dx_qn))
2584                                 - n->item()->item_to_canvas (ArdourCanvas::Duple (n->x0(), 0)).x;
2585                 } else {
2586                         /* Hit::x0() is offset by _position.x, unlike Note::x0() */
2587                         Hit* hit = dynamic_cast<Hit*>(n);
2588                         if (hit) {
2589                                 dx = editor->sample_to_pixel_unrounded (tmap.frame_at_quarter_note (note_time_qn + dx_qn))
2590                                         - n->item()->item_to_canvas (ArdourCanvas::Duple (((hit->x0() + hit->x1()) / 2.0) - hit->position().x, 0)).x;
2591                         }
2592                 }
2593
2594                 (*i)->move_event(dx, dy);
2595
2596                 /* update length */
2597                 if (midi_view()->note_mode() == Sustained) {
2598                         Note* sus = dynamic_cast<Note*> (*i);
2599                         double const len_dx = editor->sample_to_pixel_unrounded (
2600                                 tmap.frame_at_quarter_note (note_time_qn + dx_qn + n->note()->length().to_double()));
2601
2602                         sus->set_x1 (n->item()->canvas_to_item (ArdourCanvas::Duple (len_dx, 0)).x);
2603                 }
2604         }
2605
2606         if (dy && !_selection.empty() && !_no_sound_notes && UIConfiguration::instance().get_sound_midi_notes()) {
2607
2608                 if (to_play.size() > 1) {
2609
2610                         PossibleChord shifted;
2611
2612                         for (PossibleChord::iterator n = to_play.begin(); n != to_play.end(); ++n) {
2613                                 boost::shared_ptr<NoteType> moved_note (new NoteType (**n));
2614                                 moved_note->set_note (moved_note->note() + cumulative_dy);
2615                                 shifted.push_back (moved_note);
2616                         }
2617
2618                         start_playing_midi_chord (shifted);
2619
2620                 } else if (!to_play.empty()) {
2621
2622                         boost::shared_ptr<NoteType> moved_note (new NoteType (*to_play.front()));
2623                         moved_note->set_note (moved_note->note() + cumulative_dy);
2624                         start_playing_midi_note (moved_note);
2625                 }
2626         }
2627 }
2628
2629 NoteBase*
2630 MidiRegionView::copy_selection (NoteBase* primary)
2631 {
2632         _copy_drag_events.clear ();
2633
2634         if (_selection.empty()) {
2635                 return 0;
2636         }
2637
2638         NoteBase* note;
2639         NoteBase* ret = 0;
2640
2641         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2642                 boost::shared_ptr<NoteType> g (new NoteType (*((*i)->note())));
2643                 if (midi_view()->note_mode() == Sustained) {
2644                         Note* n = new Note (*this, _note_group, g);
2645                         update_sustained (n, false);
2646                         note = n;
2647                 } else {
2648                         Hit* h = new Hit (*this, _note_group, 10, g);
2649                         update_hit (h, false);
2650                         note = h;
2651                 }
2652
2653                 if ((*i) == primary) {
2654                         ret = note;
2655                 }
2656
2657                 _copy_drag_events.push_back (note);
2658         }
2659
2660         return ret;
2661 }
2662
2663 void
2664 MidiRegionView::move_copies (double dx_qn, double dy, double cumulative_dy)
2665 {
2666         typedef vector<boost::shared_ptr<NoteType> > PossibleChord;
2667         Editor* editor = dynamic_cast<Editor*> (&trackview.editor());
2668         TempoMap& tmap (editor->session()->tempo_map());
2669         PossibleChord to_play;
2670         Evoral::Beats earliest = earliest_in_selection();
2671
2672         for (CopyDragEvents::iterator i = _copy_drag_events.begin(); i != _copy_drag_events.end(); ++i) {
2673                 NoteBase* n = *i;
2674                 if (n->note()->time() == earliest) {
2675                         to_play.push_back (n->note());
2676                 }
2677                 double const note_time_qn = session_relative_qn (n->note()->time().to_double());
2678                 double const dx = editor->sample_to_pixel_unrounded (tmap.frame_at_quarter_note (note_time_qn + dx_qn))
2679                         - n->item()->item_to_canvas (ArdourCanvas::Duple (n->x0(), 0)).x;
2680
2681                 (*i)->move_event(dx, dy);
2682
2683                 if (midi_view()->note_mode() == Sustained) {
2684                         Note* sus = dynamic_cast<Note*> (*i);
2685                         double const len_dx = editor->sample_to_pixel_unrounded (
2686                                 tmap.frame_at_quarter_note (note_time_qn + dx_qn + n->note()->length().to_double()));
2687
2688                         sus->set_x1 (n->item()->canvas_to_item (ArdourCanvas::Duple (len_dx, 0)).x);
2689                 }
2690         }
2691
2692         if (dy && !_copy_drag_events.empty() && !_no_sound_notes && UIConfiguration::instance().get_sound_midi_notes()) {
2693
2694                 if (to_play.size() > 1) {
2695
2696                         PossibleChord shifted;
2697
2698                         for (PossibleChord::iterator n = to_play.begin(); n != to_play.end(); ++n) {
2699                                 boost::shared_ptr<NoteType> moved_note (new NoteType (**n));
2700                                 moved_note->set_note (moved_note->note() + cumulative_dy);
2701                                 shifted.push_back (moved_note);
2702                         }
2703
2704                         start_playing_midi_chord (shifted);
2705
2706                 } else if (!to_play.empty()) {
2707
2708                         boost::shared_ptr<NoteType> moved_note (new NoteType (*to_play.front()));
2709                         moved_note->set_note (moved_note->note() + cumulative_dy);
2710                         start_playing_midi_note (moved_note);
2711                 }
2712         }
2713 }
2714
2715 void
2716 MidiRegionView::note_dropped(NoteBase *, double d_qn, int8_t dnote, bool copy)
2717 {
2718         uint8_t lowest_note_in_selection  = 127;
2719         uint8_t highest_note_in_selection = 0;
2720         uint8_t highest_note_difference   = 0;
2721
2722         if (!copy) {
2723                 // find highest and lowest notes first
2724
2725                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2726                         uint8_t pitch = (*i)->note()->note();
2727                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
2728                         highest_note_in_selection = std::max(highest_note_in_selection, pitch);
2729                 }
2730
2731                 /*
2732                   cerr << "dnote: " << (int) dnote << endl;
2733                   cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
2734                   << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
2735                   cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
2736                   << int(highest_note_in_selection) << endl;
2737                   cerr << "selection size: " << _selection.size() << endl;
2738                   cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
2739                 */
2740
2741                 // Make sure the note pitch does not exceed the MIDI standard range
2742                 if (highest_note_in_selection + dnote > 127) {
2743                         highest_note_difference = highest_note_in_selection - 127;
2744                 }
2745
2746                 start_note_diff_command (_("move notes"));
2747
2748                 for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
2749
2750                         Evoral::Beats new_time = Evoral::Beats ((*i)->note()->time().to_double() + d_qn);
2751
2752                         if (new_time < 0) {
2753                                 continue;
2754                         }
2755
2756                         note_diff_add_change (*i, MidiModel::NoteDiffCommand::StartTime, new_time);
2757
2758                         uint8_t original_pitch = (*i)->note()->note();
2759                         uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
2760
2761                         // keep notes in standard midi range
2762                         clamp_to_0_127(new_pitch);
2763
2764                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
2765                         highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
2766
2767                         note_diff_add_change (*i, MidiModel::NoteDiffCommand::NoteNumber, new_pitch);
2768                 }
2769         } else {
2770
2771                 clear_editor_note_selection ();
2772
2773                 for (CopyDragEvents::iterator i = _copy_drag_events.begin(); i != _copy_drag_events.end(); ++i) {
2774                         uint8_t pitch = (*i)->note()->note();
2775                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
2776                         highest_note_in_selection = std::max(highest_note_in_selection, pitch);
2777                 }
2778
2779                 // Make sure the note pitch does not exceed the MIDI standard range
2780                 if (highest_note_in_selection + dnote > 127) {
2781                         highest_note_difference = highest_note_in_selection - 127;
2782                 }
2783
2784                 start_note_diff_command (_("copy notes"));
2785
2786                 for (CopyDragEvents::iterator i = _copy_drag_events.begin(); i != _copy_drag_events.end() ; ++i) {
2787
2788                         /* update time */
2789                         Evoral::Beats new_time = Evoral::Beats ((*i)->note()->time().to_double() + d_qn);
2790
2791                         if (new_time < 0) {
2792                                 continue;
2793                         }
2794
2795                         (*i)->note()->set_time (new_time);
2796
2797                         /* update pitch */
2798
2799                         uint8_t original_pitch = (*i)->note()->note();
2800                         uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
2801
2802                         (*i)->note()->set_note (new_pitch);
2803
2804                         // keep notes in standard midi range
2805                         clamp_to_0_127(new_pitch);
2806
2807                         lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
2808                         highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
2809
2810                         note_diff_add_note ((*i)->note(), true);
2811
2812                         delete *i;
2813                 }
2814
2815                 _copy_drag_events.clear ();
2816         }
2817
2818         apply_diff (false, copy);
2819
2820         // care about notes being moved beyond the upper/lower bounds on the canvas
2821         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
2822             highest_note_in_selection > midi_stream_view()->highest_note()) {
2823                 midi_stream_view()->set_note_range (MidiStreamView::ContentsRange);
2824         }
2825 }
2826
2827 /** @param x Pixel relative to the region position.
2828  *  @param ensure_snap defaults to false. true = snap always, ignoring snap mode and magnetic snap.
2829  *  Used for inverting the snap logic with key modifiers and snap delta calculation.
2830  *  @return Snapped frame relative to the region position.
2831  */
2832 framepos_t
2833 MidiRegionView::snap_pixel_to_sample(double x, bool ensure_snap)
2834 {
2835         PublicEditor& editor (trackview.editor());
2836         return snap_frame_to_frame (editor.pixel_to_sample (x), ensure_snap).frame;
2837 }
2838
2839 /** @param x Pixel relative to the region position.
2840  *  @param ensure_snap defaults to false. true = ignore magnetic snap and snap mode (used for snap delta calculation).
2841  *  @return Snapped pixel relative to the region position.
2842  */
2843 double
2844 MidiRegionView::snap_to_pixel(double x, bool ensure_snap)
2845 {
2846         return (double) trackview.editor().sample_to_pixel(snap_pixel_to_sample(x, ensure_snap));
2847 }
2848
2849 double
2850 MidiRegionView::get_position_pixels()
2851 {
2852         framepos_t region_frame = get_position();
2853         return trackview.editor().sample_to_pixel(region_frame);
2854 }
2855
2856 double
2857 MidiRegionView::get_end_position_pixels()
2858 {
2859         framepos_t frame = get_position() + get_duration ();
2860         return trackview.editor().sample_to_pixel(frame);
2861 }
2862
2863 framepos_t
2864 MidiRegionView::source_beats_to_absolute_frames(Evoral::Beats beats) const
2865 {
2866         /* the time converter will return the frame corresponding to `beats'
2867            relative to the start of the source. The start of the source
2868            is an implied position given by region->position - region->start
2869         */
2870         const framepos_t source_start = _region->position() - _region->start();
2871         return  source_start +  _source_relative_time_converter.to (beats);
2872 }
2873
2874 Evoral::Beats
2875 MidiRegionView::absolute_frames_to_source_beats(framepos_t frames) const
2876 {
2877         /* the `frames' argument needs to be converted into a frame count
2878            relative to the start of the source before being passed in to the
2879            converter.
2880         */
2881         const framepos_t source_start = _region->position() - _region->start();
2882         return  _source_relative_time_converter.from (frames - source_start);
2883 }
2884
2885 framepos_t
2886 MidiRegionView::region_beats_to_region_frames(Evoral::Beats beats) const
2887 {
2888         return _region_relative_time_converter.to(beats);
2889 }
2890
2891 Evoral::Beats
2892 MidiRegionView::region_frames_to_region_beats(framepos_t frames) const
2893 {
2894         return _region_relative_time_converter.from(frames);
2895 }
2896
2897 double
2898 MidiRegionView::region_frames_to_region_beats_double (framepos_t frames) const
2899 {
2900         return _region_relative_time_converter_double.from(frames);
2901 }
2902
2903 void
2904 MidiRegionView::begin_resizing (bool /*at_front*/)
2905 {
2906         _resize_data.clear();
2907
2908         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2909                 Note *note = dynamic_cast<Note*> (*i);
2910
2911                 // only insert CanvasNotes into the map
2912                 if (note) {
2913                         NoteResizeData *resize_data = new NoteResizeData();
2914                         resize_data->note = note;
2915
2916                         // create a new SimpleRect from the note which will be the resize preview
2917                         ArdourCanvas::Rectangle *resize_rect = new ArdourCanvas::Rectangle (_note_group,
2918                                                                                             ArdourCanvas::Rect (note->x0(), note->y0(), note->x0(), note->y1()));
2919
2920                         // calculate the colors: get the color settings
2921                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
2922                                 UIConfiguration::instance().color ("midi note selected"),
2923                                 128);
2924
2925                         // make the resize preview notes more transparent and bright
2926                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
2927
2928                         // calculate color based on note velocity
2929                         resize_rect->set_fill_color (UINT_INTERPOLATE(
2930                                 NoteBase::meter_style_fill_color(note->note()->velocity(), note->selected()),
2931                                 fill_color,
2932                                 0.85));
2933
2934                         resize_rect->set_outline_color (NoteBase::calculate_outline (
2935                                                                 UIConfiguration::instance().color ("midi note selected")));
2936
2937                         resize_data->resize_rect = resize_rect;
2938                         _resize_data.push_back(resize_data);
2939                 }
2940         }
2941 }
2942
2943 /** Update resizing notes while user drags.
2944  * @param primary `primary' note for the drag; ie the one that is used as the reference in non-relative mode.
2945  * @param at_front which end of the note (true == note on, false == note off)
2946  * @param delta_x change in mouse position since the start of the drag
2947  * @param relative true if relative resizing is taking place, false if absolute resizing.  This only makes
2948  * a difference when multiple notes are being resized; in relative mode, each note's length is changed by the
2949  * amount of the drag.  In non-relative mode, all selected notes are set to have the same start or end point
2950  * as the \a primary note.
2951  * @param snap_delta snap offset of the primary note in pixels. used in SnapRelative SnapDelta mode.
2952  * @param with_snap true if snap is to be used to determine the position, false if no snap is to be used.
2953  */
2954 void
2955 MidiRegionView::update_resizing (NoteBase* primary, bool at_front, double delta_x, bool relative, double snap_delta, bool with_snap)
2956 {
2957         TempoMap& tmap (trackview.session()->tempo_map());
2958         bool cursor_set = false;
2959         bool const ensure_snap = trackview.editor().snap_mode () != SnapMagnetic;
2960
2961         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2962                 ArdourCanvas::Rectangle* resize_rect = (*i)->resize_rect;
2963                 Note* canvas_note = (*i)->note;
2964                 double current_x;
2965
2966                 if (at_front) {
2967                         if (relative) {
2968                                 current_x = canvas_note->x0() + delta_x + snap_delta;
2969                         } else {
2970                                 current_x = primary->x0() + delta_x + snap_delta;
2971                         }
2972                 } else {
2973                         if (relative) {
2974                                 current_x = canvas_note->x1() + delta_x + snap_delta;
2975                         } else {
2976                                 current_x = primary->x1() + delta_x + snap_delta;
2977                         }
2978                 }
2979
2980                 if (current_x < 0) {
2981                         // This works even with snapping because RegionView::snap_frame_to_frame()
2982                         // snaps forward if the snapped sample is before the beginning of the region
2983                         current_x = 0;
2984                 }
2985                 if (current_x > trackview.editor().sample_to_pixel(_region->length())) {
2986                         current_x = trackview.editor().sample_to_pixel(_region->length());
2987                 }
2988
2989                 if (at_front) {
2990                         if (with_snap) {
2991                                 resize_rect->set_x0 (snap_to_pixel (current_x, ensure_snap) - snap_delta);
2992                         } else {
2993                                 resize_rect->set_x0 (current_x - snap_delta);
2994                         }
2995                         resize_rect->set_x1 (canvas_note->x1());
2996                 } else {
2997                         if (with_snap) {
2998                                 resize_rect->set_x1 (snap_to_pixel (current_x, ensure_snap) - snap_delta);
2999                         } else {
3000                                 resize_rect->set_x1 (current_x - snap_delta);
3001                         }
3002                         resize_rect->set_x0 (canvas_note->x0());
3003                 }
3004
3005                 if (!cursor_set) {
3006                         /* Convert snap delta from pixels to beats. */
3007                         framepos_t snap_delta_samps = trackview.editor().pixel_to_sample (snap_delta);
3008                         double snap_delta_beats = 0.0;
3009                         int sign = 1;
3010
3011                         /* negative beat offsets aren't allowed */
3012                         if (snap_delta_samps > 0) {
3013                                 snap_delta_beats = region_frames_to_region_beats_double (snap_delta_samps);
3014                         } else if (snap_delta_samps < 0) {
3015                                 snap_delta_beats = region_frames_to_region_beats_double ( - snap_delta_samps);
3016                                 sign = -1;
3017                         }
3018
3019                         double  snapped_x;
3020                         int32_t divisions = 0;
3021
3022                         if (with_snap) {
3023                                 snapped_x = snap_pixel_to_sample (current_x, ensure_snap);
3024                                 divisions = trackview.editor().get_grid_music_divisions (0);
3025                         } else {
3026                                 snapped_x = trackview.editor ().pixel_to_sample (current_x);
3027                         }
3028                         const Evoral::Beats beats = Evoral::Beats (tmap.exact_beat_at_frame (snapped_x + midi_region()->position(), divisions)
3029                                                                      - midi_region()->beat()) + midi_region()->start_beats();
3030
3031                         Evoral::Beats len         = Evoral::Beats();
3032
3033                         if (at_front) {
3034                                 if (beats < canvas_note->note()->end_time()) {
3035                                         len = canvas_note->note()->time() - beats + (sign * snap_delta_beats);
3036                                         len += canvas_note->note()->length();
3037                                 }
3038                         } else {
3039                                 if (beats >= canvas_note->note()->time()) {
3040                                         len = beats - canvas_note->note()->time() - (sign * snap_delta_beats);
3041                                 }
3042                         }
3043
3044                         len = std::max(Evoral::Beats(1 / 512.0), len);
3045
3046                         char buf[16];
3047                         snprintf (buf, sizeof (buf), "%.3g beats", len.to_double());
3048                         show_verbose_cursor (buf, 0, 0);
3049
3050                         cursor_set = true;
3051                 }
3052
3053         }
3054 }
3055
3056
3057 /** Finish resizing notes when the user releases the mouse button.
3058  *  Parameters the same as for \a update_resizing().
3059  */
3060 void
3061 MidiRegionView::commit_resizing (NoteBase* primary, bool at_front, double delta_x, bool relative, double snap_delta, bool with_snap)
3062 {
3063         _note_diff_command = _model->new_note_diff_command (_("resize notes"));
3064         TempoMap& tmap (trackview.session()->tempo_map());
3065
3066         /* XX why doesn't snap_pixel_to_sample() handle this properly? */
3067         bool const ensure_snap = trackview.editor().snap_mode () != SnapMagnetic;
3068
3069         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
3070                 Note*  canvas_note = (*i)->note;
3071                 ArdourCanvas::Rectangle*  resize_rect = (*i)->resize_rect;
3072
3073                 /* Get the new x position for this resize, which is in pixels relative
3074                  * to the region position.
3075                  */
3076
3077                 double current_x;
3078
3079                 if (at_front) {
3080                         if (relative) {
3081                                 current_x = canvas_note->x0() + delta_x + snap_delta;
3082                         } else {
3083                                 current_x = primary->x0() + delta_x + snap_delta;
3084                         }
3085                 } else {
3086                         if (relative) {
3087                                 current_x = canvas_note->x1() + delta_x + snap_delta;
3088                         } else {
3089                                 current_x = primary->x1() + delta_x + snap_delta;
3090                         }
3091                 }
3092
3093                 if (current_x < 0) {
3094                         current_x = 0;
3095                 }
3096                 if (current_x > trackview.editor().sample_to_pixel(_region->length())) {
3097                         current_x = trackview.editor().sample_to_pixel(_region->length());
3098                 }
3099
3100                 /* Convert snap delta from pixels to beats with sign. */
3101                 framepos_t snap_delta_samps = trackview.editor().pixel_to_sample (snap_delta);
3102                 double snap_delta_beats = 0.0;
3103                 int sign = 1;
3104
3105                 if (snap_delta_samps > 0) {
3106                         snap_delta_beats = region_frames_to_region_beats_double (snap_delta_samps);
3107                 } else if (snap_delta_samps < 0) {
3108                         snap_delta_beats = region_frames_to_region_beats_double ( - snap_delta_samps);
3109                         sign = -1;
3110                 }
3111
3112                 uint32_t divisions = 0;
3113                 /* Convert the new x position to a frame within the source */
3114                 framepos_t current_fr;
3115                 if (with_snap) {
3116                         current_fr = snap_pixel_to_sample (current_x, ensure_snap);
3117                         divisions = trackview.editor().get_grid_music_divisions (0);
3118                 } else {
3119                         current_fr = trackview.editor().pixel_to_sample (current_x);
3120                 }
3121
3122                 /* and then to beats */
3123                 const double e_qaf = tmap.exact_qn_at_frame (current_fr + midi_region()->position(), divisions);
3124                 const double quarter_note_start = _region->quarter_note() - midi_region()->start_beats();
3125                 const Evoral::Beats x_beats = Evoral::Beats (e_qaf - quarter_note_start);
3126
3127                 if (at_front && x_beats < canvas_note->note()->end_time()) {
3128                         note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::StartTime, x_beats - (sign * snap_delta_beats));
3129                         Evoral::Beats len = canvas_note->note()->time() - x_beats + (sign * snap_delta_beats);
3130                         len += canvas_note->note()->length();
3131
3132                         if (!!len) {
3133                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
3134                         }
3135                 }
3136
3137                 if (!at_front) {
3138                         Evoral::Beats len = std::max(Evoral::Beats(1 / 512.0),
3139                                                      x_beats - canvas_note->note()->time() - (sign * snap_delta_beats));
3140                         note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
3141                 }
3142
3143                 delete resize_rect;
3144                 delete (*i);
3145         }
3146
3147         _resize_data.clear();
3148         apply_diff(true);
3149 }
3150
3151 void
3152 MidiRegionView::abort_resizing ()
3153 {
3154         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
3155                 delete (*i)->resize_rect;
3156                 delete *i;
3157         }
3158
3159         _resize_data.clear ();
3160 }
3161
3162 void
3163 MidiRegionView::change_note_velocity(NoteBase* event, int8_t velocity, bool relative)
3164 {
3165         uint8_t new_velocity;
3166
3167         if (relative) {
3168                 new_velocity = event->note()->velocity() + velocity;
3169                 clamp_to_0_127(new_velocity);
3170         } else {
3171                 new_velocity = velocity;
3172         }
3173
3174         event->set_selected (event->selected()); // change color
3175
3176         note_diff_add_change (event, MidiModel::NoteDiffCommand::Velocity, new_velocity);
3177 }
3178
3179 void
3180 MidiRegionView::change_note_note (NoteBase* event, int8_t note, bool relative)
3181 {
3182         uint8_t new_note;
3183
3184         if (relative) {
3185                 new_note = event->note()->note() + note;
3186         } else {
3187                 new_note = note;
3188         }
3189
3190         clamp_to_0_127 (new_note);
3191         note_diff_add_change (event, MidiModel::NoteDiffCommand::NoteNumber, new_note);
3192 }
3193
3194 void
3195 MidiRegionView::trim_note (NoteBase* event, Evoral::Beats front_delta, Evoral::Beats end_delta)
3196 {
3197         bool change_start = false;
3198         bool change_length = false;
3199         Evoral::Beats new_start;
3200         Evoral::Beats new_length;
3201
3202         /* NOTE: the semantics of the two delta arguments are slightly subtle:
3203
3204            front_delta: if positive - move the start of the note later in time (shortening it)
3205            if negative - move the start of the note earlier in time (lengthening it)
3206
3207            end_delta:   if positive - move the end of the note later in time (lengthening it)
3208            if negative - move the end of the note earlier in time (shortening it)
3209         */
3210
3211         if (!!front_delta) {
3212                 if (front_delta < 0) {
3213
3214                         if (event->note()->time() < -front_delta) {
3215                                 new_start = Evoral::Beats();
3216                         } else {
3217                                 new_start = event->note()->time() + front_delta; // moves earlier
3218                         }
3219
3220                         /* start moved toward zero, so move the end point out to where it used to be.
3221                            Note that front_delta is negative, so this increases the length.
3222                         */
3223
3224                         new_length = event->note()->length() - front_delta;
3225                         change_start = true;
3226                         change_length = true;
3227
3228                 } else {
3229
3230                         Evoral::Beats new_pos = event->note()->time() + front_delta;
3231
3232                         if (new_pos < event->note()->end_time()) {
3233                                 new_start = event->note()->time() + front_delta;
3234                                 /* start moved toward the end, so move the end point back to where it used to be */
3235                                 new_length = event->note()->length() - front_delta;
3236                                 change_start = true;
3237                                 change_length = true;
3238                         }
3239                 }
3240
3241         }
3242
3243         if (!!end_delta) {
3244                 bool can_change = true;
3245                 if (end_delta < 0) {
3246                         if (event->note()->length() < -end_delta) {
3247                                 can_change = false;
3248                         }
3249                 }
3250
3251                 if (can_change) {
3252                         new_length = event->note()->length() + end_delta;
3253                         change_length = true;
3254                 }
3255         }
3256
3257         if (change_start) {
3258                 note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_start);
3259         }
3260
3261         if (change_length) {
3262                 note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, new_length);
3263         }
3264 }
3265
3266 void
3267 MidiRegionView::change_note_channel (NoteBase* event, int8_t chn, bool relative)
3268 {
3269         uint8_t new_channel;
3270
3271         if (relative) {
3272                 if (chn < 0.0) {
3273                         if (event->note()->channel() < -chn) {
3274                                 new_channel = 0;
3275                         } else {
3276                                 new_channel = event->note()->channel() + chn;
3277                         }
3278                 } else {
3279                         new_channel = event->note()->channel() + chn;
3280                 }
3281         } else {
3282                 new_channel = (uint8_t) chn;
3283         }
3284
3285         note_diff_add_change (event, MidiModel::NoteDiffCommand::Channel, new_channel);
3286 }
3287
3288 void
3289 MidiRegionView::change_note_time (NoteBase* event, Evoral::Beats delta, bool relative)
3290 {
3291         Evoral::Beats new_time;
3292
3293         if (relative) {
3294                 if (delta < 0.0) {
3295                         if (event->note()->time() < -delta) {
3296                                 new_time = Evoral::Beats();
3297                         } else {
3298                                 new_time = event->note()->time() + delta;
3299                         }
3300                 } else {
3301                         new_time = event->note()->time() + delta;
3302                 }
3303         } else {
3304                 new_time = delta;
3305         }
3306
3307         note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_time);
3308 }
3309
3310 void
3311 MidiRegionView::change_note_length (NoteBase* event, Evoral::Beats t)
3312 {
3313         note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, t);
3314 }
3315
3316 void
3317 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush, bool all_together)
3318 {
3319         int8_t delta;
3320         int8_t value = 0;
3321
3322         if (_selection.empty()) {
3323                 return;
3324         }
3325
3326         if (fine) {
3327                 delta = 1;
3328         } else {
3329                 delta = 10;
3330         }
3331
3332         if (!up) {
3333                 delta = -delta;
3334         }
3335
3336         if (!allow_smush) {
3337                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3338                         if ((*i)->note()->velocity() < -delta || (*i)->note()->velocity() + delta > 127) {
3339                                 goto cursor_label;
3340                         }
3341                 }
3342         }
3343
3344         start_note_diff_command (_("change velocities"));
3345
3346         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
3347                 Selection::iterator next = i;
3348                 ++next;
3349
3350                 if (all_together) {
3351                         if (i == _selection.begin()) {
3352                                 change_note_velocity (*i, delta, true);
3353                                 value = (*i)->note()->velocity() + delta;
3354                         } else {
3355                                 change_note_velocity (*i, value, false);
3356                         }
3357
3358                 } else {
3359                         change_note_velocity (*i, delta, true);
3360                 }
3361
3362                 i = next;
3363         }
3364
3365         apply_diff();
3366
3367   cursor_label:
3368         if (!_selection.empty()) {
3369                 char buf[24];
3370                 snprintf (buf, sizeof (buf), "Vel %d",
3371                           (int) (*_selection.begin())->note()->velocity());
3372                 show_verbose_cursor (buf, 10, 10);
3373         }
3374 }
3375
3376
3377 void
3378 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
3379 {
3380         if (_selection.empty()) {
3381                 return;
3382         }
3383
3384         int8_t delta;
3385
3386         if (fine) {
3387                 delta = 1;
3388         } else {
3389                 delta = 12;
3390         }
3391
3392         if (!up) {
3393                 delta = -delta;
3394         }
3395
3396         if (!allow_smush) {
3397                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3398                         if (!up) {
3399                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
3400                                         return;
3401                                 }
3402                         } else {
3403                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
3404                                         return;
3405                                 }
3406                         }
3407                 }
3408         }
3409
3410         start_note_diff_command (_("transpose"));
3411
3412         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
3413                 Selection::iterator next = i;
3414                 ++next;
3415                 change_note_note (*i, delta, true);
3416                 i = next;
3417         }
3418
3419         apply_diff ();
3420 }
3421
3422 void
3423 MidiRegionView::change_note_lengths (bool fine, bool shorter, Evoral::Beats delta, bool start, bool end)
3424 {
3425         if (!delta) {
3426                 if (fine) {
3427                         delta = Evoral::Beats(1.0/128.0);
3428                 } else {
3429                         /* grab the current grid distance */
3430                         delta = get_grid_beats(_region->position());
3431                 }
3432         }
3433
3434         if (shorter) {
3435                 delta = -delta;
3436         }
3437
3438         start_note_diff_command (_("change note lengths"));
3439
3440         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
3441                 Selection::iterator next = i;
3442                 ++next;
3443
3444                 /* note the negation of the delta for start */
3445
3446                 trim_note (*i,
3447                            (start ? -delta : Evoral::Beats()),
3448                            (end   ? delta  : Evoral::Beats()));
3449                 i = next;
3450         }
3451
3452         apply_diff ();
3453
3454 }
3455
3456 void
3457 MidiRegionView::nudge_notes (bool forward, bool fine)
3458 {
3459         if (_selection.empty()) {
3460                 return;
3461         }
3462
3463         /* pick a note as the point along the timeline to get the nudge distance.
3464            its not necessarily the earliest note, so we may want to pull the notes out
3465            into a vector and sort before using the first one.
3466         */
3467
3468         const framepos_t ref_point = source_beats_to_absolute_frames ((*(_selection.begin()))->note()->time());
3469         Evoral::Beats    delta;
3470
3471         if (!fine) {
3472
3473                 /* non-fine, move by 1 bar regardless of snap */
3474                 delta = Evoral::Beats(trackview.session()->tempo_map().meter_at_frame (ref_point).divisions_per_bar());
3475
3476         } else if (trackview.editor().snap_mode() == Editing::SnapOff) {
3477
3478                 /* grid is off - use nudge distance */
3479
3480                 framepos_t       unused;
3481                 const framecnt_t distance = trackview.editor().get_nudge_distance (ref_point, unused);
3482                 delta = region_frames_to_region_beats (fabs ((double)distance));
3483
3484         } else {
3485
3486                 /* use grid */
3487
3488                 MusicFrame next_pos (ref_point, 0);
3489                 if (forward) {
3490                         if (max_framepos - 1 < next_pos.frame) {
3491                                 next_pos.frame += 1;
3492                         }
3493                 } else {
3494                         if (next_pos.frame == 0) {
3495                                 return;
3496                         }
3497                         next_pos.frame -= 1;
3498                 }
3499
3500                 trackview.editor().snap_to (next_pos, (forward ? RoundUpAlways : RoundDownAlways), false);
3501                 const framecnt_t distance = ref_point - next_pos.frame;
3502                 delta = region_frames_to_region_beats (fabs ((double)distance));
3503         }
3504
3505         if (!delta) {
3506                 return;
3507         }
3508
3509         if (!forward) {
3510                 delta = -delta;
3511         }
3512
3513         start_note_diff_command (_("nudge"));
3514
3515         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
3516                 Selection::iterator next = i;
3517                 ++next;
3518                 change_note_time (*i, delta, true);
3519                 i = next;
3520         }
3521
3522         apply_diff ();
3523 }
3524
3525 void
3526 MidiRegionView::change_channel(uint8_t channel)
3527 {
3528         start_note_diff_command(_("change channel"));
3529         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3530                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::Channel, channel);
3531         }
3532
3533         apply_diff();
3534 }
3535
3536
3537 void
3538 MidiRegionView::note_entered(NoteBase* ev)
3539 {
3540         _entered_note = ev;
3541
3542         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
3543
3544         if (_mouse_state == SelectTouchDragging) {
3545
3546                 note_selected (ev, true);
3547
3548         } else if (editor->current_mouse_mode() == MouseContent) {
3549
3550                 remove_ghost_note ();
3551                 show_verbose_cursor (ev->note ());
3552
3553         } else if (editor->current_mouse_mode() == MouseDraw) {
3554
3555                 remove_ghost_note ();
3556                 show_verbose_cursor (ev->note ());
3557         }
3558 }
3559
3560 void
3561 MidiRegionView::note_left (NoteBase*)
3562 {
3563         _entered_note = 0;
3564
3565         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3566                 (*i)->hide_velocity ();
3567         }
3568
3569         hide_verbose_cursor ();
3570 }
3571
3572 void
3573 MidiRegionView::patch_entered (PatchChange* p)
3574 {
3575         ostringstream s;
3576         s << _("Bank ") << (p->patch()->bank() + MIDI_BP_ZERO) << '\n'
3577           << instrument_info().get_patch_name_without (p->patch()->bank(), p->patch()->program(), p->patch()->channel()) << '\n'
3578           << _("Channel ") << ((int) p->patch()->channel() + 1);
3579         show_verbose_cursor (s.str(), 10, 20);
3580         p->item().grab_focus();
3581 }
3582
3583 void
3584 MidiRegionView::patch_left (PatchChange *)
3585 {
3586         hide_verbose_cursor ();
3587         /* focus will transfer back via the enter-notify event sent to this
3588          * midi region view.
3589          */
3590 }
3591
3592 void
3593 MidiRegionView::sysex_entered (SysEx* p)
3594 {
3595         // ostringstream s;
3596         // CAIROCANVAS
3597         // need a way to extract text from p->_flag->_text
3598         // s << p->text();
3599         // show_verbose_cursor (s.str(), 10, 20);
3600         p->item().grab_focus();
3601 }
3602
3603 void
3604 MidiRegionView::sysex_left (SysEx *)
3605 {
3606         hide_verbose_cursor ();
3607         /* focus will transfer back via the enter-notify event sent to this
3608          * midi region view.
3609          */
3610 }
3611
3612 void
3613 MidiRegionView::note_mouse_position (float x_fraction, float /*y_fraction*/, bool can_set_cursor)
3614 {
3615         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
3616         Editing::MouseMode mm = editor->current_mouse_mode();
3617         bool trimmable = (mm == MouseContent || mm == MouseTimeFX || mm == MouseDraw);
3618
3619         Editor::EnterContext* ctx = editor->get_enter_context(NoteItem);
3620         if (can_set_cursor && ctx) {
3621                 if (trimmable && x_fraction > 0.0 && x_fraction < 0.2) {
3622                         ctx->cursor_ctx->change(editor->cursors()->left_side_trim);
3623                 } else if (trimmable && x_fraction >= 0.8 && x_fraction < 1.0) {
3624                         ctx->cursor_ctx->change(editor->cursors()->right_side_trim);
3625                 } else {
3626                         ctx->cursor_ctx->change(editor->cursors()->grabber_note);
3627                 }
3628         }
3629 }
3630
3631 uint32_t
3632 MidiRegionView::get_fill_color() const
3633 {
3634         const std::string mod_name = (_dragging ? "dragging region" :
3635                                       trackview.editor().internal_editing() ? "editable region" :
3636                                       "midi frame base");
3637         if (_selected) {
3638                 return UIConfiguration::instance().color_mod ("selected region base", mod_name);
3639         } else if ((!UIConfiguration::instance().get_show_name_highlight() || high_enough_for_name) &&
3640                    !UIConfiguration::instance().get_color_regions_using_track_color()) {
3641                 return UIConfiguration::instance().color_mod ("midi frame base", mod_name);
3642         }
3643         return UIConfiguration::instance().color_mod (fill_color, mod_name);
3644 }
3645
3646 void
3647 MidiRegionView::midi_channel_mode_changed ()
3648 {
3649         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3650         uint16_t mask = mtv->midi_track()->get_playback_channel_mask();
3651         ChannelMode mode = mtv->midi_track()->get_playback_channel_mode ();
3652
3653         if (mode == ForceChannel) {
3654                 mask = 0xFFFF; // Show all notes as active (below)
3655         }
3656
3657         // Update notes for selection
3658         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3659                 i->second->on_channel_selection_change (mask);
3660         }
3661
3662         _patch_changes.clear ();
3663         display_patch_changes ();
3664 }
3665
3666 void
3667 MidiRegionView::instrument_settings_changed ()
3668 {
3669         redisplay_model();
3670 }
3671
3672 void
3673 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
3674 {
3675         if (_selection.empty()) {
3676                 return;
3677         }
3678
3679         PublicEditor& editor (trackview.editor());
3680
3681         switch (op) {
3682         case Delete:
3683                 /* XXX what to do ? */
3684                 break;
3685         case Cut:
3686         case Copy:
3687                 editor.get_cut_buffer().add (selection_as_cut_buffer());
3688                 break;
3689         default:
3690                 break;
3691         }
3692
3693         if (op != Copy) {
3694
3695                 start_note_diff_command();
3696
3697                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
3698                         switch (op) {
3699                         case Copy:
3700                                 break;
3701                         case Delete:
3702                         case Cut:
3703                         case Clear:
3704                                 note_diff_remove_note (*i);
3705                                 break;
3706                         }
3707                 }
3708
3709                 apply_diff();
3710         }
3711 }
3712
3713 MidiCutBuffer*
3714 MidiRegionView::selection_as_cut_buffer () const
3715 {
3716         Notes notes;
3717
3718         for (Selection::const_iterator i = _selection.begin(); i != _selection.end(); ++i) {
3719                 NoteType* n = (*i)->note().get();
3720                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
3721         }
3722
3723         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
3724         cb->set (notes);
3725
3726         return cb;
3727 }
3728
3729 /** This method handles undo */
3730 bool
3731 MidiRegionView::paste (framepos_t pos, const ::Selection& selection, PasteContext& ctx, const int32_t sub_num)
3732 {
3733         bool commit = false;
3734         // Paste notes, if available
3735         MidiNoteSelection::const_iterator m = selection.midi_notes.get_nth(ctx.counts.n_notes());
3736         if (m != selection.midi_notes.end()) {
3737                 ctx.counts.increase_n_notes();
3738                 if (!(*m)->empty()) {
3739                         commit = true;
3740                 }
3741                 paste_internal(pos, ctx.count, ctx.times, **m);
3742         }
3743
3744         // Paste control points to automation children, if available
3745         typedef RouteTimeAxisView::AutomationTracks ATracks;
3746         const ATracks& atracks = midi_view()->automation_tracks();
3747         for (ATracks::const_iterator a = atracks.begin(); a != atracks.end(); ++a) {
3748                 if (a->second->paste(pos, selection, ctx, sub_num)) {
3749                         if(!commit) {
3750                                 trackview.editor().begin_reversible_command (Operations::paste);
3751                         }
3752                         commit = true;
3753                 }
3754         }
3755
3756         if (commit) {
3757                 trackview.editor().commit_reversible_command ();
3758         }
3759         return true;
3760 }
3761
3762 /** This method handles undo */
3763 void
3764 MidiRegionView::paste_internal (framepos_t pos, unsigned paste_count, float times, const MidiCutBuffer& mcb)
3765 {
3766         if (mcb.empty()) {
3767                 return;
3768         }
3769
3770         start_note_diff_command (_("paste"));
3771
3772         const Evoral::Beats snap_beats    = get_grid_beats(pos);
3773         const Evoral::Beats first_time    = (*mcb.notes().begin())->time();
3774         const Evoral::Beats last_time     = (*mcb.notes().rbegin())->end_time();
3775         const Evoral::Beats duration      = last_time - first_time;
3776         const Evoral::Beats snap_duration = duration.snap_to(snap_beats);
3777         const Evoral::Beats paste_offset  = snap_duration * paste_count;
3778         const Evoral::Beats quarter_note     = absolute_frames_to_source_beats(pos) + paste_offset;
3779         Evoral::Beats       end_point     = Evoral::Beats();
3780
3781         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste data spans from %1 to %2 (%3) ; paste pos beats = %4 (based on %5 - %6)\n",
3782                                                        first_time,
3783                                                        last_time,
3784                                                        duration, pos, _region->position(),
3785                                                        quarter_note));
3786
3787         clear_editor_note_selection ();
3788
3789         for (int n = 0; n < (int) times; ++n) {
3790
3791                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
3792
3793                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
3794                         copied_note->set_time (quarter_note + copied_note->time() - first_time);
3795                         copied_note->set_id (Evoral::next_event_id());
3796
3797                         /* make all newly added notes selected */
3798
3799                         note_diff_add_note (copied_note, true);
3800                         end_point = copied_note->end_time();
3801                 }
3802         }
3803
3804         /* if we pasted past the current end of the region, extend the region */
3805
3806         framepos_t end_frame = source_beats_to_absolute_frames (end_point);
3807         framepos_t region_end = _region->position() + _region->length() - 1;
3808
3809         if (end_frame > region_end) {
3810
3811                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste extended region from %1 to %2\n", region_end, end_frame));
3812
3813                 _region->clear_changes ();
3814                 /* we probably need to get the snap modifier somehow to make this correct for non-musical use */
3815                 _region->set_length (end_frame - _region->position(), trackview.editor().get_grid_music_divisions (0));
3816                 trackview.session()->add_command (new StatefulDiffCommand (_region));
3817         }
3818
3819         apply_diff (true);
3820 }
3821
3822 struct EventNoteTimeEarlyFirstComparator {
3823         bool operator() (NoteBase* a, NoteBase* b) {
3824                 return a->note()->time() < b->note()->time();
3825         }
3826 };
3827
3828 void
3829 MidiRegionView::goto_next_note (bool add_to_selection)
3830 {
3831         bool use_next = false;
3832
3833         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3834         uint16_t const channel_mask = mtv->midi_track()->get_playback_channel_mask();
3835         NoteBase* first_note = 0;
3836
3837         MidiModel::ReadLock lock(_model->read_lock());
3838         MidiModel::Notes& notes (_model->notes());
3839
3840         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
3841                 NoteBase* cne = 0;
3842                 if ((cne = find_canvas_note (*n))) {
3843
3844                         if (!first_note && (channel_mask & (1 << (*n)->channel()))) {
3845                                 first_note = cne;
3846                         }
3847
3848                         if (cne->selected()) {
3849                                 use_next = true;
3850                                 continue;
3851                         } else if (use_next) {
3852                                 if (channel_mask & (1 << (*n)->channel())) {
3853                                         if (!add_to_selection) {
3854                                                 unique_select (cne);
3855                                         } else {
3856                                                 note_selected (cne, true, false);
3857                                         }
3858
3859                                         return;
3860                                 }
3861                         }
3862                 }
3863         }
3864
3865         /* use the first one */
3866
3867         if (!_events.empty() && first_note) {
3868                 unique_select (first_note);
3869         }
3870 }
3871
3872 void
3873 MidiRegionView::goto_previous_note (bool add_to_selection)
3874 {
3875         bool use_next = false;
3876
3877         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3878         uint16_t const channel_mask = mtv->midi_track()->get_playback_channel_mask ();
3879         NoteBase* last_note = 0;
3880
3881         MidiModel::ReadLock lock(_model->read_lock());
3882         MidiModel::Notes& notes (_model->notes());
3883
3884         for (MidiModel::Notes::reverse_iterator n = notes.rbegin(); n != notes.rend(); ++n) {
3885                 NoteBase* cne = 0;
3886                 if ((cne = find_canvas_note (*n))) {
3887
3888                         if (!last_note && (channel_mask & (1 << (*n)->channel()))) {
3889                                 last_note = cne;
3890                         }
3891
3892                         if (cne->selected()) {
3893                                 use_next = true;
3894                                 continue;
3895
3896                         } else if (use_next) {
3897                                 if (channel_mask & (1 << (*n)->channel())) {
3898                                         if (!add_to_selection) {
3899                                                 unique_select (cne);
3900                                         } else {
3901                                                 note_selected (cne, true, false);
3902                                         }
3903
3904                                         return;
3905                                 }
3906                         }
3907                 }
3908         }
3909
3910         /* use the last one */
3911
3912         if (!_events.empty() && last_note) {
3913                 unique_select (last_note);
3914         }
3915 }
3916
3917 void
3918 MidiRegionView::selection_as_notelist (Notes& selected, bool allow_all_if_none_selected)
3919 {
3920         bool had_selected = false;
3921
3922         /* we previously time sorted events here, but Notes is a multiset sorted by time */
3923
3924         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3925                 if (i->second->selected()) {
3926                         selected.insert (i->first);
3927                         had_selected = true;
3928                 }
3929         }
3930
3931         if (allow_all_if_none_selected && !had_selected) {
3932                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3933                         selected.insert (i->first);
3934                 }
3935         }
3936 }
3937
3938 void
3939 MidiRegionView::update_ghost_note (double x, double y, uint32_t state)
3940 {
3941         x = std::max(0.0, x);
3942
3943         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3944
3945         _last_ghost_x = x;
3946         _last_ghost_y = y;
3947
3948         _note_group->canvas_to_item (x, y);
3949
3950         PublicEditor& editor = trackview.editor ();
3951
3952         framepos_t const unsnapped_frame = editor.pixel_to_sample (x);
3953
3954         const int32_t divisions = editor.get_grid_music_divisions (state);
3955         const bool shift_snap = midi_view()->note_mode() != Percussive;
3956         const Evoral::Beats snapped_beats = snap_frame_to_grid_underneath (unsnapped_frame, divisions, shift_snap);
3957
3958         /* prevent Percussive mode from displaying a ghost hit at region end */
3959         if (!shift_snap && snapped_beats >= midi_region()->start_beats() + midi_region()->length_beats()) {
3960                 _ghost_note->hide();
3961                 hide_verbose_cursor ();
3962                 return;
3963         }
3964
3965         /* ghost note may have been snapped before region */
3966         if (_ghost_note && snapped_beats.to_double() < 0.0) {
3967                 _ghost_note->hide();
3968                 return;
3969
3970         } else if (_ghost_note) {
3971                 _ghost_note->show();
3972         }
3973
3974         /* calculate time in beats relative to start of source */
3975         const Evoral::Beats length = get_grid_beats(unsnapped_frame + _region->position());
3976
3977         _ghost_note->note()->set_time (snapped_beats);
3978         _ghost_note->note()->set_length (length);
3979         _ghost_note->note()->set_note (y_to_note (y));
3980         _ghost_note->note()->set_channel (mtv->get_channel_for_add ());
3981         _ghost_note->note()->set_velocity (get_velocity_for_add (snapped_beats));
3982         /* the ghost note does not appear in ghost regions, so pass false in here */
3983         update_note (_ghost_note, false);
3984
3985         show_verbose_cursor (_ghost_note->note ());
3986 }
3987
3988 void
3989 MidiRegionView::create_ghost_note (double x, double y, uint32_t state)
3990 {
3991         remove_ghost_note ();
3992
3993         boost::shared_ptr<NoteType> g (new NoteType);
3994         if (midi_view()->note_mode() == Sustained) {
3995                 _ghost_note = new Note (*this, _note_group, g);
3996         } else {
3997                 _ghost_note = new Hit (*this, _note_group, 10, g);
3998         }
3999         _ghost_note->set_ignore_events (true);
4000         _ghost_note->set_outline_color (0x000000aa);
4001         update_ghost_note (x, y, state);
4002         _ghost_note->show ();
4003
4004         show_verbose_cursor (_ghost_note->note ());
4005 }
4006
4007 void
4008 MidiRegionView::remove_ghost_note ()
4009 {
4010         delete _ghost_note;
4011         _ghost_note = 0;
4012 }
4013
4014 void
4015 MidiRegionView::hide_verbose_cursor ()
4016 {
4017         trackview.editor().verbose_cursor()->hide ();
4018         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
4019         if (mtv) {
4020                 mtv->set_note_highlight (NO_MIDI_NOTE);
4021         }
4022 }
4023
4024 void
4025 MidiRegionView::snap_changed ()
4026 {
4027         if (!_ghost_note) {
4028                 return;
4029         }
4030
4031         create_ghost_note (_last_ghost_x, _last_ghost_y, 0);
4032 }
4033
4034 void
4035 MidiRegionView::drop_down_keys ()
4036 {
4037         _mouse_state = None;
4038 }
4039
4040 void
4041 MidiRegionView::maybe_select_by_position (GdkEventButton* ev, double /*x*/, double y)
4042 {
4043         /* XXX: This is dead code.  What was it for? */
4044
4045         double note = y_to_note(y);
4046         Events e;
4047         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
4048
4049         uint16_t chn_mask = mtv->midi_track()->get_playback_channel_mask();
4050
4051         if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
4052                 get_events (e, Evoral::Sequence<Evoral::Beats>::PitchGreaterThanOrEqual, (uint8_t) floor (note), chn_mask);
4053         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
4054                 get_events (e, Evoral::Sequence<Evoral::Beats>::PitchLessThanOrEqual, (uint8_t) floor (note), chn_mask);
4055         } else {
4056                 return;
4057         }
4058
4059         bool add_mrv_selection = false;
4060
4061         if (_selection.empty()) {
4062                 add_mrv_selection = true;
4063         }
4064
4065         for (Events::iterator i = e.begin(); i != e.end(); ++i) {
4066                 if (_selection.insert (i->second).second) {
4067                         i->second->set_selected (true);
4068                 }
4069         }
4070
4071         if (add_mrv_selection) {
4072                 PublicEditor& editor (trackview.editor());
4073                 editor.get_selection().add (this);
4074         }
4075 }
4076
4077 void
4078 MidiRegionView::color_handler ()
4079 {
4080         RegionView::color_handler ();
4081
4082         _patch_change_outline = UIConfiguration::instance().color ("midi patch change outline");
4083         _patch_change_fill = UIConfiguration::instance().color_mod ("midi patch change fill", "midi patch change fill");
4084
4085         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
4086                 i->second->set_selected (i->second->selected()); // will change color
4087         }
4088
4089         /* XXX probably more to do here */
4090 }
4091
4092 void
4093 MidiRegionView::enable_display (bool yn)
4094 {
4095         RegionView::enable_display (yn);
4096 }
4097
4098 void
4099 MidiRegionView::show_step_edit_cursor (Evoral::Beats pos)
4100 {
4101         if (_step_edit_cursor == 0) {
4102                 ArdourCanvas::Item* const group = get_canvas_group();
4103
4104                 _step_edit_cursor = new ArdourCanvas::Rectangle (group);
4105                 _step_edit_cursor->set_y0 (0);
4106                 _step_edit_cursor->set_y1 (midi_stream_view()->contents_height());
4107                 _step_edit_cursor->set_fill_color (RGBA_TO_UINT (45,0,0,90));
4108                 _step_edit_cursor->set_outline_color (RGBA_TO_UINT (85,0,0,90));
4109         }
4110
4111         move_step_edit_cursor (pos);
4112         _step_edit_cursor->show ();
4113 }
4114
4115 void
4116 MidiRegionView::move_step_edit_cursor (Evoral::Beats pos)
4117 {
4118         _step_edit_cursor_position = pos;
4119
4120         if (_step_edit_cursor) {
4121                 double pixel = trackview.editor().sample_to_pixel (region_beats_to_region_frames (pos));
4122                 _step_edit_cursor->set_x0 (pixel);
4123                 set_step_edit_cursor_width (_step_edit_cursor_width);
4124         }
4125 }
4126
4127 void
4128 MidiRegionView::hide_step_edit_cursor ()
4129 {
4130         if (_step_edit_cursor) {
4131                 _step_edit_cursor->hide ();
4132         }
4133 }
4134
4135 void
4136 MidiRegionView::set_step_edit_cursor_width (Evoral::Beats beats)
4137 {
4138         _step_edit_cursor_width = beats;
4139
4140         if (_step_edit_cursor) {
4141                 _step_edit_cursor->set_x1 (_step_edit_cursor->x0() + trackview.editor().sample_to_pixel (
4142                                                    region_beats_to_region_frames (_step_edit_cursor_position + beats)
4143                                                    - region_beats_to_region_frames (_step_edit_cursor_position)));
4144         }
4145 }
4146
4147 /** Called when a diskstream on our track has received some data.  Update the view, if applicable.
4148  *  @param w Source that the data will end up in.
4149  */
4150 void
4151 MidiRegionView::data_recorded (boost::weak_ptr<MidiSource> w)
4152 {
4153         if (!_active_notes) {
4154                 /* we aren't actively being recorded to */
4155                 return;
4156         }
4157
4158         boost::shared_ptr<MidiSource> src = w.lock ();
4159         if (!src || src != midi_region()->midi_source()) {
4160                 /* recorded data was not destined for our source */
4161                 return;
4162         }
4163
4164         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (&trackview);
4165
4166         boost::shared_ptr<MidiBuffer> buf = mtv->midi_track()->get_gui_feed_buffer ();
4167
4168         framepos_t back = max_framepos;
4169
4170         for (MidiBuffer::iterator i = buf->begin(); i != buf->end(); ++i) {
4171                 const Evoral::Event<MidiBuffer::TimeType>& ev = *i;
4172
4173                 if (ev.is_channel_event()) {
4174                         if (get_channel_mode() == FilterChannels) {
4175                                 if (((uint16_t(1) << ev.channel()) & get_selected_channels()) == 0) {
4176                                         continue;
4177                                 }
4178                         }
4179                 }
4180
4181                 /* convert from session frames to source beats */
4182                 Evoral::Beats const time_beats = _source_relative_time_converter.from(
4183                         ev.time() - src->timeline_position() + _region->start());
4184
4185                 if (ev.type() == MIDI_CMD_NOTE_ON) {
4186                         boost::shared_ptr<NoteType> note (
4187                                 new NoteType (ev.channel(), time_beats, Evoral::Beats(), ev.note(), ev.velocity()));
4188
4189                         add_note (note, true);
4190
4191                         /* fix up our note range */
4192                         if (ev.note() < _current_range_min) {
4193                                 midi_stream_view()->apply_note_range (ev.note(), _current_range_max, true);
4194                         } else if (ev.note() > _current_range_max) {
4195                                 midi_stream_view()->apply_note_range (_current_range_min, ev.note(), true);
4196                         }
4197
4198                 } else if (ev.type() == MIDI_CMD_NOTE_OFF) {
4199                         resolve_note (ev.note (), time_beats);
4200                 }
4201
4202                 back = ev.time ();
4203         }
4204
4205         midi_stream_view()->check_record_layers (region(), back);
4206 }
4207
4208 void
4209 MidiRegionView::trim_front_starting ()
4210 {
4211         /* We used to eparent the note group to the region view's parent, so that it didn't change.
4212            now we update it.
4213         */
4214 }
4215
4216 void
4217 MidiRegionView::trim_front_ending ()
4218 {
4219         if (_region->start() < 0) {
4220                 /* Trim drag made start time -ve; fix this */
4221                 midi_region()->fix_negative_start ();
4222         }
4223 }
4224
4225 void
4226 MidiRegionView::edit_patch_change (PatchChange* pc)
4227 {
4228         PatchChangeDialog d (&_source_relative_time_converter, trackview.session(), *pc->patch (), instrument_info(), Gtk::Stock::APPLY, true);
4229
4230         int response = d.run();
4231
4232         switch (response) {
4233         case Gtk::RESPONSE_ACCEPT:
4234                 break;
4235         case Gtk::RESPONSE_REJECT:
4236                 delete_patch_change (pc);
4237                 return;
4238         default:
4239                 return;
4240         }
4241
4242         change_patch_change (pc->patch(), d.patch ());
4243 }
4244
4245 void
4246 MidiRegionView::delete_sysex (SysEx* /*sysex*/)
4247 {
4248         // CAIROCANVAS
4249         // sysyex object doesn't have a pointer to a sysex event
4250         // MidiModel::SysExDiffCommand* c = _model->new_sysex_diff_command (_("delete sysex"));
4251         // c->remove (sysex->sysex());
4252         // _model->apply_command (*trackview.session(), c);
4253
4254         //_sys_exes.clear ();
4255         // display_sysexes();
4256 }
4257
4258 std::string
4259 MidiRegionView::get_note_name (boost::shared_ptr<NoteType> n, uint8_t note_value) const
4260 {
4261         using namespace MIDI::Name;
4262         std::string name;
4263
4264         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
4265         if (mtv) {
4266                 boost::shared_ptr<MasterDeviceNames> device_names(mtv->get_device_names());
4267                 if (device_names) {
4268                         MIDI::Name::PatchPrimaryKey patch_key;
4269                         get_patch_key_at(n->time(), n->channel(), patch_key);
4270                         name = device_names->note_name(mtv->gui_property(X_("midnam-custom-device-mode")),
4271                                                        n->channel(),
4272                                                        patch_key.bank(),
4273                                                        patch_key.program(),
4274                                                        note_value);
4275                 }
4276         }
4277
4278         char buf[128];
4279         snprintf (buf, sizeof (buf), "%d %s\nCh %d Vel %d",
4280                   (int) note_value,
4281                   name.empty() ? ParameterDescriptor::midi_note_name (note_value).c_str() : name.c_str(),
4282                   (int) n->channel() + 1,
4283                   (int) n->velocity());
4284
4285         return buf;
4286 }
4287
4288 void
4289 MidiRegionView::show_verbose_cursor_for_new_note_value(boost::shared_ptr<NoteType> current_note,
4290                                                        uint8_t new_value) const
4291 {
4292         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
4293         if (mtv) {
4294                 mtv->set_note_highlight (new_value);
4295         }
4296
4297         show_verbose_cursor(get_note_name(current_note, new_value), 10, 20);
4298 }
4299
4300 void
4301 MidiRegionView::show_verbose_cursor (boost::shared_ptr<NoteType> n) const
4302 {
4303         show_verbose_cursor_for_new_note_value(n, n->note());
4304 }
4305
4306 void
4307 MidiRegionView::show_verbose_cursor (string const & text, double xoffset, double yoffset) const
4308 {
4309         trackview.editor().verbose_cursor()->set (text);
4310         trackview.editor().verbose_cursor()->show ();
4311         trackview.editor().verbose_cursor()->set_offset (ArdourCanvas::Duple (xoffset, yoffset));
4312 }
4313
4314 uint8_t
4315 MidiRegionView::get_velocity_for_add (MidiModel::TimeType time) const
4316 {
4317         if (_model->notes().empty()) {
4318                 return 0x40;  // No notes, use default
4319         }
4320
4321         MidiModel::Notes::const_iterator m = _model->note_lower_bound(time);
4322         if (m == _model->notes().begin()) {
4323                 // Before the start, use the velocity of the first note
4324                 return (*m)->velocity();
4325         } else if (m == _model->notes().end()) {
4326                 // Past the end, use the velocity of the last note
4327                 --m;
4328                 return (*m)->velocity();
4329         }
4330
4331         // Interpolate velocity of surrounding notes
4332         MidiModel::Notes::const_iterator n = m;
4333         --n;
4334
4335         const double frac = ((time - (*n)->time()).to_double() /
4336                              ((*m)->time() - (*n)->time()).to_double());
4337
4338         return (*n)->velocity() + (frac * ((*m)->velocity() - (*n)->velocity()));
4339 }
4340
4341 /** @param p A session framepos.
4342  *  @param divisions beat division to snap given by Editor::get_grid_music_divisions() where
4343  *  bar is -1, 0 is audio samples and a positive integer is beat subdivisions.
4344  *  @return beat duration of p snapped to the grid subdivision underneath it.
4345  */
4346 Evoral::Beats
4347 MidiRegionView::snap_frame_to_grid_underneath (framepos_t p, int32_t divisions, bool shift_snap) const
4348 {
4349         TempoMap& map (trackview.session()->tempo_map());
4350         double eqaf = map.exact_qn_at_frame (p + _region->position(), divisions);
4351
4352         if (divisions != 0 && shift_snap) {
4353                 const double qaf = map.quarter_note_at_frame (p + _region->position());
4354                 /* Hack so that we always snap to the note that we are over, instead of snapping
4355                    to the next one if we're more than halfway through the one we're over.
4356                 */
4357                 const Evoral::Beats grid_beats = get_grid_beats (p + _region->position());
4358                 const double rem = eqaf - qaf;
4359                 if (rem >= 0.0) {
4360                         eqaf -= grid_beats.to_double();
4361                 }
4362         }
4363         const double session_start_off = _region->quarter_note() - midi_region()->start_beats();
4364
4365         return Evoral::Beats (eqaf - session_start_off);
4366 }
4367
4368 ChannelMode
4369 MidiRegionView::get_channel_mode () const
4370 {
4371         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (&trackview);
4372         return rtav->midi_track()->get_playback_channel_mode();
4373 }
4374
4375 uint16_t
4376 MidiRegionView::get_selected_channels () const
4377 {
4378         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (&trackview);
4379         return rtav->midi_track()->get_playback_channel_mask();
4380 }
4381
4382
4383 Evoral::Beats
4384 MidiRegionView::get_grid_beats(framepos_t pos) const
4385 {
4386         PublicEditor& editor  = trackview.editor();
4387         bool          success = false;
4388         Evoral::Beats beats   = editor.get_grid_type_as_beats (success, pos);
4389         if (!success) {
4390                 beats = Evoral::Beats(1);
4391         }
4392         return beats;
4393 }
4394 uint8_t
4395 MidiRegionView::y_to_note (double y) const
4396 {
4397         int const n = ((contents_height() - y) / contents_height() * (double)(_current_range_max - _current_range_min + 1))
4398                 + _current_range_min;
4399
4400         if (n < 0) {
4401                 return 0;
4402         } else if (n > 127) {
4403                 return 127;
4404         }
4405
4406         /* min due to rounding and/or off-by-one errors */
4407         return min ((uint8_t) n, _current_range_max);
4408 }
4409
4410 double
4411 MidiRegionView::note_to_y(uint8_t note) const
4412 {
4413         return contents_height() - (note + 1 - _current_range_min) * note_height() + 1;
4414 }
4415
4416 double
4417 MidiRegionView::session_relative_qn (double qn) const
4418 {
4419         return qn + (region()->quarter_note() - midi_region()->start_beats());
4420 }