gtk2_ardour/midi_region_view.cc

   1 /*
   2     Copyright (C) 2001-2007 Paul Davis
   3     Author: Dave Robillard
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 */
  19
  20 #include <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23 #include <ostream>
  24
  25 #include <gtkmm.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28
  29 #include <sigc++/signal.h>
  30
  31 #include "pbd/memento_command.h"
  32 #include "pbd/stateful_diff_command.h"
  33
  34 #include "ardour/playlist.h"
  35 #include "ardour/tempo.h"
  36 #include "ardour/midi_region.h"
  37 #include "ardour/midi_source.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40 #include "ardour/session.h"
  41
  42 #include "evoral/Parameter.hpp"
  43 #include "evoral/MIDIParameters.hpp"
  44 #include "evoral/Control.hpp"
  45 #include "evoral/midi_util.h"
  46
  47 #include "automation_region_view.h"
  48 #include "automation_time_axis.h"
  49 #include "canvas-hit.h"
  50 #include "canvas-note.h"
  51 #include "canvas_patch_change.h"
  52 #include "debug.h"
  53 #include "editor.h"
  54 #include "ghostregion.h"
  55 #include "gui_thread.h"
  56 #include "keyboard.h"
  57 #include "midi_cut_buffer.h"
  58 #include "midi_list_editor.h"
  59 #include "midi_region_view.h"
  60 #include "midi_streamview.h"
  61 #include "midi_time_axis.h"
  62 #include "midi_util.h"
  63 #include "note_player.h"
  64 #include "public_editor.h"
  65 #include "rgb_macros.h"
  66 #include "selection.h"
  67 #include "simpleline.h"
  68 #include "streamview.h"
  69 #include "utils.h"
  70 #include "mouse_cursors.h"
  71 #include "patch_change_dialog.h"
  72
  73 #include "i18n.h"
  74
  75 using namespace ARDOUR;
  76 using namespace PBD;
  77 using namespace Editing;
  78 using namespace ArdourCanvas;
  79 using Gtkmm2ext::Keyboard;
  80
  81 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  82                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  83         : RegionView (parent, tv, r, spu, basic_color)
  84         , _force_channel(-1)
  85         , _last_channel_selection(0xFFFF)
  86         , _current_range_min(0)
  87         , _current_range_max(0)
  88         , _model_name(string())
  89         , _custom_device_mode(string())
  90         , _active_notes(0)
  91         , _note_group(new ArdourCanvas::Group(*group))
  92         , _note_diff_command (0)
  93         , _ghost_note(0)
  94         , _drag_rect (0)
  95         , _step_edit_cursor (0)
  96         , _step_edit_cursor_width (1.0)
  97         , _step_edit_cursor_position (0.0)
  98         , _channel_selection_scoped_note (0)
  99         , _temporary_note_group (0)
 100         , _mouse_state(None)
 101         , _pressed_button(0)
 102         , _sort_needed (true)
 103         , _optimization_iterator (_events.end())
 104         , _list_editor (0)
 105         , no_sound_notes (false)
 106         , _last_event_x (0)
 107         , _last_event_y (0)
 108         , pre_enter_cursor (0)
 109 {
 110         _note_group->raise_to_top();
 111         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 112
 113         connect_to_diskstream ();
 114 }
 115
 116 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
 117                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
 118                 TimeAxisViewItem::Visibility visibility)
 119         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
 120         , _force_channel(-1)
 121         , _last_channel_selection(0xFFFF)
 122         , _model_name(string())
 123         , _custom_device_mode(string())
 124         , _active_notes(0)
 125         , _note_group(new ArdourCanvas::Group(*parent))
 126         , _note_diff_command (0)
 127         , _ghost_note(0)
 128         , _drag_rect (0)
 129         , _step_edit_cursor (0)
 130         , _step_edit_cursor_width (1.0)
 131         , _step_edit_cursor_position (0.0)
 132         , _channel_selection_scoped_note (0)
 133         , _temporary_note_group (0)
 134         , _mouse_state(None)
 135         , _pressed_button(0)
 136         , _sort_needed (true)
 137         , _optimization_iterator (_events.end())
 138         , _list_editor (0)
 139         , no_sound_notes (false)
 140         , _last_event_x (0)
 141         , _last_event_y (0)
 142 {
 143         _note_group->raise_to_top();
 144         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 145
 146         connect_to_diskstream ();
 147 }
 148
 149 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 150         : sigc::trackable(other)
 151         , RegionView (other)
 152         , _force_channel(-1)
 153         , _last_channel_selection(0xFFFF)
 154         , _model_name(string())
 155         , _custom_device_mode(string())
 156         , _active_notes(0)
 157         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 158         , _note_diff_command (0)
 159         , _ghost_note(0)
 160         , _drag_rect (0)
 161         , _step_edit_cursor (0)
 162         , _step_edit_cursor_width (1.0)
 163         , _step_edit_cursor_position (0.0)
 164         , _channel_selection_scoped_note (0)
 165         , _temporary_note_group (0)
 166         , _mouse_state(None)
 167         , _pressed_button(0)
 168         , _sort_needed (true)
 169         , _optimization_iterator (_events.end())
 170         , _list_editor (0)
 171         , no_sound_notes (false)
 172         , _last_event_x (0)
 173         , _last_event_y (0)
 174 {
 175         Gdk::Color c;
 176         int r,g,b,a;
 177
 178         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 179         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 180
 181         init (c, false);
 182 }
 183
 184 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 185         : RegionView (other, boost::shared_ptr<Region> (region))
 186         , _force_channel(-1)
 187         , _last_channel_selection(0xFFFF)
 188         , _model_name(string())
 189         , _custom_device_mode(string())
 190         , _active_notes(0)
 191         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 192         , _note_diff_command (0)
 193         , _ghost_note(0)
 194         , _drag_rect (0)
 195         , _step_edit_cursor (0)
 196         , _step_edit_cursor_width (1.0)
 197         , _step_edit_cursor_position (0.0)
 198         , _channel_selection_scoped_note (0)
 199         , _temporary_note_group (0)
 200         , _mouse_state(None)
 201         , _pressed_button(0)
 202         , _sort_needed (true)
 203         , _optimization_iterator (_events.end())
 204         , _list_editor (0)
 205         , no_sound_notes (false)
 206         , _last_event_x (0)
 207         , _last_event_y (0)
 208 {
 209         Gdk::Color c;
 210         int r,g,b,a;
 211
 212         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 213         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 214
 215         init (c, true);
 216 }
 217
 218 void
 219 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 220 {
 221         PublicEditor::DropDownKeys.connect (sigc::mem_fun (*this, &MidiRegionView::drop_down_keys));
 222
 223         CanvasNoteEvent::CanvasNoteEventDeleted.connect (note_delete_connection, MISSING_INVALIDATOR,
 224                                                          ui_bind (&MidiRegionView::maybe_remove_deleted_note_from_selection, this, _1),
 225                                                          gui_context());
 226
 227         if (wfd) {
 228                 midi_region()->midi_source(0)->load_model();
 229         }
 230
 231         _model = midi_region()->midi_source(0)->model();
 232         _enable_display = false;
 233
 234         RegionView::init (basic_color, false);
 235
 236         compute_colors (basic_color);
 237
 238         set_height (trackview.current_height());
 239
 240         region_muted ();
 241         region_sync_changed ();
 242         region_resized (ARDOUR::bounds_change);
 243         region_locked ();
 244
 245         reset_width_dependent_items (_pixel_width);
 246
 247         set_colors ();
 248
 249         _enable_display = true;
 250         if (_model) {
 251                 if (wfd) {
 252                         display_model (_model);
 253                 }
 254         }
 255
 256         group->raise_to_top();
 257         group->signal_event().connect (sigc::mem_fun (this, &MidiRegionView::canvas_event), false);
 258
 259         midi_view()->signal_channel_mode_changed().connect(
 260                         sigc::mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 261
 262         midi_view()->signal_midi_patch_settings_changed().connect(
 263                         sigc::mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 264
 265         trackview.editor().SnapChanged.connect (snap_changed_connection, invalidator (*this), ui_bind (&MidiRegionView::snap_changed, this), gui_context ());
 266
 267         connect_to_diskstream ();
 268 }
 269
 270 void
 271 MidiRegionView::connect_to_diskstream ()
 272 {
 273         midi_view()->midi_track()->DataRecorded.connect (*this, invalidator (*this), ui_bind (&MidiRegionView::data_recorded, this, _1, _2), gui_context ());
 274 }
 275
 276 bool
 277 MidiRegionView::canvas_event(GdkEvent* ev)
 278 {
 279         switch (ev->type) {
 280         case GDK_ENTER_NOTIFY:
 281         case GDK_LEAVE_NOTIFY:
 282                 _last_event_x = ev->crossing.x;
 283                 _last_event_y = ev->crossing.y;
 284                 break;
 285         case GDK_MOTION_NOTIFY:
 286                 _last_event_x = ev->motion.x;
 287                 _last_event_y = ev->motion.y;
 288                 break;
 289         default:
 290                 break;
 291         }
 292
 293         if (!trackview.editor().internal_editing()) {
 294                 return false;
 295         }
 296
 297         switch (ev->type) {
 298         case GDK_SCROLL:
 299                 return scroll (&ev->scroll);
 300
 301         case GDK_KEY_PRESS:
 302                 return key_press (&ev->key);
 303
 304         case GDK_KEY_RELEASE:
 305                 return key_release (&ev->key);
 306
 307         case GDK_BUTTON_PRESS:
 308                 return button_press (&ev->button);
 309
 310         case GDK_2BUTTON_PRESS:
 311                 return true;
 312
 313         case GDK_BUTTON_RELEASE:
 314                 return button_release (&ev->button);
 315
 316         case GDK_ENTER_NOTIFY:
 317                 return enter_notify (&ev->crossing);
 318
 319         case GDK_LEAVE_NOTIFY:
 320                 return leave_notify (&ev->crossing);
 321
 322         case GDK_MOTION_NOTIFY:
 323                 return motion (&ev->motion);
 324
 325         default:
 326                 break;
 327         }
 328
 329         return false;
 330 }
 331
 332 void
 333 MidiRegionView::remove_ghost_note ()
 334 {
 335         delete _ghost_note;
 336         _ghost_note = 0;
 337 }
 338
 339 bool
 340 MidiRegionView::enter_notify (GdkEventCrossing* ev)
 341 {
 342         trackview.editor().MouseModeChanged.connect (
 343                 _mouse_mode_connection, invalidator (*this), ui_bind (&MidiRegionView::mouse_mode_changed, this), gui_context ()
 344                 );
 345
 346         Keyboard::magic_widget_grab_focus();
 347         group->grab_focus();
 348
 349         if (trackview.editor().current_mouse_mode() == MouseRange) {
 350                 create_ghost_note (ev->x, ev->y);
 351         }
 352
 353         return false;
 354 }
 355
 356 bool
 357 MidiRegionView::leave_notify (GdkEventCrossing*)
 358 {
 359         _mouse_mode_connection.disconnect ();
 360
 361         trackview.editor().hide_verbose_canvas_cursor ();
 362         remove_ghost_note ();
 363         return false;
 364 }
 365
 366 void
 367 MidiRegionView::mouse_mode_changed ()
 368 {
 369         if (trackview.editor().current_mouse_mode() == MouseRange && trackview.editor().internal_editing()) {
 370                 create_ghost_note (_last_event_x, _last_event_y);
 371         } else {
 372                 remove_ghost_note ();
 373                 trackview.editor().hide_verbose_canvas_cursor ();
 374         }
 375 }
 376
 377 bool
 378 MidiRegionView::button_press (GdkEventButton* ev)
 379 {
 380         _last_x = ev->x;
 381         _last_y = ev->y;
 382
 383         group->w2i (_last_x, _last_y);
 384
 385         if (_mouse_state != SelectTouchDragging) {
 386
 387                 _pressed_button = ev->button;
 388                 _mouse_state = Pressed;
 389
 390                 return true;
 391         }
 392
 393         _pressed_button = ev->button;
 394
 395         return true;
 396 }
 397
 398 bool
 399 MidiRegionView::button_release (GdkEventButton* ev)
 400 {
 401         double event_x, event_y;
 402         framepos_t event_frame = 0;
 403
 404         event_x = ev->x;
 405         event_y = ev->y;
 406
 407         group->w2i(event_x, event_y);
 408         group->ungrab(ev->time);
 409
 410         event_frame = trackview.editor().pixel_to_frame(event_x);
 411
 412         switch (_mouse_state) {
 413         case Pressed: // Clicked
 414
 415                 switch (trackview.editor().current_mouse_mode()) {
 416                 case MouseObject:
 417                 case MouseTimeFX:
 418                 {
 419                         clear_selection();
 420
 421                         if (Keyboard::is_insert_note_event(ev)){
 422
 423                                 double event_x, event_y;
 424
 425                                 event_x = ev->x;
 426                                 event_y = ev->y;
 427                                 group->w2i(event_x, event_y);
 428
 429                                 bool success;
 430                                 Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, trackview.editor().pixel_to_frame (event_x));
 431
 432                                 if (!success) {
 433                                         beats = 1;
 434                                 }
 435
 436                                 create_note_at (event_x, event_y, beats, true);
 437                         }
 438
 439                         break;
 440                 }
 441                 case MouseRange:
 442                 {
 443                         bool success;
 444                         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, trackview.editor().pixel_to_frame (event_x));
 445
 446                         if (!success) {
 447                                 beats = 1;
 448                         }
 449
 450                         create_note_at (event_x, event_y, beats, true);
 451
 452                         break;
 453                 }
 454                 default:
 455                         break;
 456                 }
 457
 458                 _mouse_state = None;
 459                 break;
 460
 461         case SelectRectDragging: // Select drag done
 462
 463                 _mouse_state = None;
 464                 delete _drag_rect;
 465                 _drag_rect = 0;
 466                 break;
 467
 468         case AddDragging: // Add drag done
 469
 470                 _mouse_state = None;
 471
 472                 if (Keyboard::is_insert_note_event(ev) || trackview.editor().current_mouse_mode() == MouseRange){
 473
 474                         if (_drag_rect->property_x2() > _drag_rect->property_x1() + 2) {
 475
 476                                 const double x  = _drag_rect->property_x1();
 477                                 const double length = trackview.editor().pixel_to_frame (_drag_rect->property_x2() - _drag_rect->property_x1());
 478
 479                                 create_note_at (x, _drag_rect->property_y1(), frames_to_beats(length), true);
 480                         }
 481                 }
 482
 483                 delete _drag_rect;
 484                 _drag_rect = 0;
 485
 486                 create_ghost_note (ev->x, ev->y);
 487
 488         default:
 489                 break;
 490         }
 491
 492         return false;
 493 }
 494
 495 bool
 496 MidiRegionView::motion (GdkEventMotion* ev)
 497 {
 498         double event_x, event_y;
 499         framepos_t event_frame = 0;
 500
 501         event_x = ev->x;
 502         event_y = ev->y;
 503         group->w2i(event_x, event_y);
 504
 505         // convert event_x to global frame
 506         event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 507         trackview.editor().snap_to(event_frame);
 508
 509         // convert event_frame back to local coordinates relative to position
 510         event_frame -= _region->position();
 511
 512         if (!_ghost_note && trackview.editor().current_mouse_mode() != MouseRange
 513                         && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())
 514                         && _mouse_state != AddDragging){
 515
 516                 create_ghost_note (ev->x, ev->y);
 517         }
 518         else if (_ghost_note && trackview.editor().current_mouse_mode() != MouseRange
 519                         && Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())){
 520
 521                 update_ghost_note (ev->x, ev->y);
 522         }
 523         else if (_ghost_note && trackview.editor().current_mouse_mode() != MouseRange){
 524
 525                 delete _ghost_note;
 526                 _ghost_note = 0;
 527
 528                 trackview.editor().hide_verbose_canvas_cursor ();
 529         }
 530         else if (_ghost_note && trackview.editor().current_mouse_mode() == MouseRange) {
 531                 update_ghost_note (ev->x, ev->y);
 532         }
 533
 534         /* any motion immediately hides velocity text that may have been visible */
 535
 536         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 537                 (*i)->hide_velocity ();
 538         }
 539
 540         switch (_mouse_state) {
 541         case Pressed: // Maybe start a drag, if we've moved a bit
 542
 543                 if (fabs (event_x - _last_x) < 1 && fabs (event_y - _last_y) < 1) {
 544                         /* no appreciable movement since the button was pressed */
 545                         return false;
 546                 }
 547
 548                 // Select drag start
 549                 if (_pressed_button == 1 && trackview.editor().current_mouse_mode() == MouseObject
 550                         && !Keyboard::modifier_state_contains (ev->state, Keyboard::insert_note_modifier())) {
 551
 552                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 553                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 554
 555                         _last_x = event_x;
 556                         _last_y = event_y;
 557                         _drag_start_x = event_x;
 558                         _drag_start_y = event_y;
 559
 560                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 561                         _drag_rect->property_x1() = event_x;
 562                         _drag_rect->property_y1() = event_y;
 563                         _drag_rect->property_x2() = event_x;
 564                         _drag_rect->property_y2() = event_y;
 565                         _drag_rect->property_outline_what() = 0xFF;
 566                         _drag_rect->property_outline_color_rgba()
 567                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 568                         _drag_rect->property_fill_color_rgba()
 569                                 = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 570
 571                         _mouse_state = SelectRectDragging;
 572                         return true;
 573
 574                         // Add note drag start
 575                 } else if (trackview.editor().internal_editing()) {
 576
 577                         delete _ghost_note;
 578                         _ghost_note = 0;
 579
 580                         group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 581                                     Gdk::Cursor(Gdk::FLEUR), ev->time);
 582
 583                         _last_x = event_x;
 584                         _last_y = event_y;
 585                         _drag_start_x = event_x;
 586                         _drag_start_y = event_y;
 587
 588                         _drag_rect = new ArdourCanvas::SimpleRect(*group);
 589                         _drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 590
 591                         _drag_rect->property_y1() = midi_stream_view()->note_to_y(
 592                                 midi_stream_view()->y_to_note(event_y));
 593                         _drag_rect->property_x2() = trackview.editor().frame_to_pixel(event_frame);
 594                         _drag_rect->property_y2() = _drag_rect->property_y1()
 595                                 + floor(midi_stream_view()->note_height());
 596                         _drag_rect->property_outline_what() = 0xFF;
 597                         _drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 598                         _drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 599
 600                         _mouse_state = AddDragging;
 601
 602                         if (_ghost_note){
 603
 604                                 delete _ghost_note;
 605                                 _ghost_note = 0;
 606
 607                                 trackview.editor().hide_verbose_canvas_cursor ();
 608                         }
 609
 610                         return true;
 611                 }
 612
 613                 return false;
 614
 615         case SelectRectDragging: // Select drag motion
 616         case AddDragging: // Add note drag motion
 617
 618                 if (ev->is_hint) {
 619                         int t_x;
 620                         int t_y;
 621                         GdkModifierType state;
 622                         gdk_window_get_pointer(ev->window, &t_x, &t_y, &state);
 623                         event_x = t_x;
 624                         event_y = t_y;
 625                 }
 626
 627                 if (_mouse_state == AddDragging){
 628                         event_x = trackview.editor().frame_to_pixel(event_frame);
 629                 }
 630
 631                 if (_drag_rect) {
 632
 633                         if (event_x > _drag_start_x){
 634                                 _drag_rect->property_x2() = event_x;
 635                         }
 636                         else {
 637                                 _drag_rect->property_x1() = event_x;
 638                         }
 639                 }
 640
 641                 if (_drag_rect && _mouse_state == SelectRectDragging) {
 642
 643                   if (event_y > _drag_start_y){
 644                                 _drag_rect->property_y2() = event_y;
 645                         }
 646                         else {
 647                                 _drag_rect->property_y1() = event_y;
 648                         }
 649
 650                         update_drag_selection(_drag_start_x, event_x, _drag_start_y, event_y);
 651                 }
 652
 653                 _last_x = event_x;
 654                 _last_y = event_y;
 655
 656         case SelectTouchDragging:
 657                 return false;
 658
 659         default:
 660                 break;
 661         }
 662
 663         return false;
 664 }
 665
 666
 667 bool
 668 MidiRegionView::scroll (GdkEventScroll* ev)
 669 {
 670         if (_selection.empty()) {
 671                 return false;
 672         }
 673
 674         trackview.editor().hide_verbose_canvas_cursor ();
 675
 676         bool fine = !Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier);
 677
 678         if (ev->direction == GDK_SCROLL_UP) {
 679                 change_velocities (true, fine, false);
 680         } else if (ev->direction == GDK_SCROLL_DOWN) {
 681                 change_velocities (false, fine, false);
 682         }
 683         return true;
 684 }
 685
 686 bool
 687 MidiRegionView::key_press (GdkEventKey* ev)
 688 {
 689         /* since GTK bindings are generally activated on press, and since
 690            detectable auto-repeat is the name of the game and only sends
 691            repeated presses, carry out key actions at key press, not release.
 692         */
 693
 694         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R){
 695                 _mouse_state = SelectTouchDragging;
 696                 return true;
 697
 698         } else if (ev->keyval == GDK_Escape) {
 699                 clear_selection();
 700                 _mouse_state = None;
 701
 702         } else if (ev->keyval == GDK_comma || ev->keyval == GDK_period) {
 703
 704                 bool start = (ev->keyval == GDK_comma);
 705                 bool end = (ev->keyval == GDK_period);
 706                 bool shorter = Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier);
 707                 bool fine = Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 708
 709                 change_note_lengths (fine, shorter, 0.0, start, end);
 710
 711                 return true;
 712
 713         } else if (ev->keyval == GDK_Delete) {
 714
 715                 delete_selection();
 716                 return true;
 717
 718         } else if (ev->keyval == GDK_Tab) {
 719
 720                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 721                         goto_previous_note ();
 722                 } else {
 723                         goto_next_note ();
 724                 }
 725                 return true;
 726
 727         } else if (ev->keyval == GDK_Up) {
 728
 729                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 730                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 731
 732                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 733                         change_velocities (true, fine, allow_smush);
 734                 } else {
 735                         transpose (true, fine, allow_smush);
 736                 }
 737                 return true;
 738
 739         } else if (ev->keyval == GDK_Down) {
 740
 741                 bool allow_smush = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
 742                 bool fine = !Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier);
 743
 744                 if (Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier)) {
 745                         change_velocities (false, fine, allow_smush);
 746                 } else {
 747                         transpose (false, fine, allow_smush);
 748                 }
 749                 return true;
 750
 751         } else if (ev->keyval == GDK_Left) {
 752
 753                 nudge_notes (false);
 754                 return true;
 755
 756         } else if (ev->keyval == GDK_Right) {
 757
 758                 nudge_notes (true);
 759                 return true;
 760
 761         } else if (ev->keyval == GDK_Control_L) {
 762                 return true;
 763
 764         }
 765
 766         return false;
 767 }
 768
 769 bool
 770 MidiRegionView::key_release (GdkEventKey* ev)
 771 {
 772         if (ev->keyval == GDK_Alt_L || ev->keyval == GDK_Alt_R) {
 773                 _mouse_state = None;
 774                 return true;
 775         }
 776         return false;
 777 }
 778
 779 void
 780 MidiRegionView::show_list_editor ()
 781 {
 782         if (!_list_editor) {
 783                 _list_editor = new MidiListEditor (trackview.session(), midi_region());
 784         }
 785         _list_editor->present ();
 786 }
 787
 788 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 789  * \param x horizontal position in pixels
 790  * \param y vertical position in pixels
 791  * \param length duration of the note in beats, which will be snapped to the grid
 792  * \param sh true to make the note 1 frame shorter than the snapped version of \a length.
 793  */
 794 void
 795 MidiRegionView::create_note_at(double x, double y, double length, bool sh)
 796 {
 797         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 798         MidiStreamView* const view = mtv->midi_view();
 799
 800         double note = view->y_to_note(y);
 801
 802         assert(note >= 0.0);
 803         assert(note <= 127.0);
 804
 805         // Start of note in frames relative to region start
 806         framepos_t const start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 807         assert(start_frames >= 0);
 808
 809         // Snap length
 810         length = frames_to_beats(
 811                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 812
 813         assert (length != 0);
 814
 815         if (sh) {
 816                 length = frames_to_beats (beats_to_frames (length) - 1);
 817         }
 818
 819         const boost::shared_ptr<NoteType> new_note (new NoteType (get_channel_for_add (),
 820                                                                   frames_to_beats(start_frames + _region->start()), length,
 821                                                                   (uint8_t)note, 0x40));
 822
 823         if (_model->contains (new_note)) {
 824                 return;
 825         }
 826
 827         view->update_note_range(new_note->note());
 828
 829         MidiModel::NoteDiffCommand* cmd = _model->new_note_diff_command("add note");
 830         cmd->add (new_note);
 831         _model->apply_command(*trackview.session(), cmd);
 832
 833         play_midi_note (new_note);
 834 }
 835
 836 void
 837 MidiRegionView::clear_events()
 838 {
 839         clear_selection();
 840
 841         MidiGhostRegion* gr;
 842         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 843                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 844                         gr->clear_events();
 845                 }
 846         }
 847
 848         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 849                 delete *i;
 850         }
 851
 852         _events.clear();
 853         _patch_changes.clear();
 854         _sys_exes.clear();
 855         _optimization_iterator = _events.end();
 856 }
 857
 858 void
 859 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 860 {
 861         _model = model;
 862
 863         content_connection.disconnect ();
 864         _model->ContentsChanged.connect (content_connection, invalidator (*this), boost::bind (&MidiRegionView::redisplay_model, this), gui_context());
 865
 866         clear_events ();
 867
 868         if (_enable_display) {
 869                 redisplay_model();
 870         }
 871 }
 872
 873 void
 874 MidiRegionView::start_note_diff_command (string name)
 875 {
 876         if (!_note_diff_command) {
 877                 _note_diff_command = _model->new_note_diff_command (name);
 878         }
 879 }
 880
 881 void
 882 MidiRegionView::note_diff_add_note (const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 883 {
 884         if (_note_diff_command) {
 885                 _note_diff_command->add (note);
 886         }
 887         if (selected) {
 888                 _marked_for_selection.insert(note);
 889         }
 890         if (show_velocity) {
 891                 _marked_for_velocity.insert(note);
 892         }
 893 }
 894
 895 void
 896 MidiRegionView::note_diff_remove_note (ArdourCanvas::CanvasNoteEvent* ev)
 897 {
 898         if (_note_diff_command && ev->note()) {
 899                 _note_diff_command->remove(ev->note());
 900         }
 901 }
 902
 903 void
 904 MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 905                                       MidiModel::NoteDiffCommand::Property property,
 906                                       uint8_t val)
 907 {
 908         if (_note_diff_command) {
 909                 _note_diff_command->change (ev->note(), property, val);
 910         }
 911 }
 912
 913 void
 914 MidiRegionView::note_diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 915                                       MidiModel::NoteDiffCommand::Property property,
 916                                       Evoral::MusicalTime val)
 917 {
 918         if (_note_diff_command) {
 919                 _note_diff_command->change (ev->note(), property, val);
 920         }
 921 }
 922
 923 void
 924 MidiRegionView::apply_diff (bool as_subcommand)
 925 {
 926         bool add_or_remove;
 927
 928         if (!_note_diff_command) {
 929                 return;
 930         }
 931
 932         if ((add_or_remove = _note_diff_command->adds_or_removes())) {
 933                 // Mark all selected notes for selection when model reloads
 934                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 935                         _marked_for_selection.insert((*i)->note());
 936                 }
 937         }
 938
 939         if (as_subcommand) {
 940                 _model->apply_command_as_subcommand (*trackview.session(), _note_diff_command);
 941         } else {
 942                 _model->apply_command (*trackview.session(), _note_diff_command);
 943         }
 944
 945         _note_diff_command = 0;
 946         midi_view()->midi_track()->playlist_modified();
 947
 948         if (add_or_remove) {
 949                 _marked_for_selection.clear();
 950         }
 951
 952         _marked_for_velocity.clear();
 953 }
 954
 955 void
 956 MidiRegionView::abort_command()
 957 {
 958         delete _note_diff_command;
 959         _note_diff_command = 0;
 960         clear_selection();
 961 }
 962
 963 CanvasNoteEvent*
 964 MidiRegionView::find_canvas_note (boost::shared_ptr<NoteType> note)
 965 {
 966         if (_optimization_iterator != _events.end()) {
 967                 ++_optimization_iterator;
 968         }
 969
 970         if (_optimization_iterator != _events.end() && (*_optimization_iterator)->note() == note) {
 971                 return *_optimization_iterator;
 972         }
 973
 974         for (_optimization_iterator = _events.begin(); _optimization_iterator != _events.end(); ++_optimization_iterator) {
 975                 if ((*_optimization_iterator)->note() == note) {
 976                         return *_optimization_iterator;
 977                 }
 978         }
 979
 980         return 0;
 981 }
 982
 983 void
 984 MidiRegionView::get_events (Events& e, Evoral::Sequence<Evoral::MusicalTime>::NoteOperator op, uint8_t val, int chan_mask)
 985 {
 986         MidiModel::Notes notes;
 987         _model->get_notes (notes, op, val, chan_mask);
 988
 989         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
 990                 CanvasNoteEvent* cne = find_canvas_note (*n);
 991                 if (cne) {
 992                         e.push_back (cne);
 993                 }
 994         }
 995 }
 996
 997 void
 998 MidiRegionView::redisplay_model()
 999 {
1000         // Don't redisplay the model if we're currently recording and displaying that
1001         if (_active_notes) {
1002                 return;
1003         }
1004
1005         if (!_model) {
1006                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
1007                 return;
1008         }
1009
1010         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1011                 (*i)->invalidate ();
1012         }
1013
1014         MidiModel::ReadLock lock(_model->read_lock());
1015
1016         MidiModel::Notes& notes (_model->notes());
1017         _optimization_iterator = _events.begin();
1018
1019         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1020
1021                 boost::shared_ptr<NoteType> note (*n);
1022                 CanvasNoteEvent* cne;
1023                 bool visible;
1024
1025                 if (note_in_region_range (note, visible)) {
1026
1027                         if ((cne = find_canvas_note (note)) != 0) {
1028
1029                                 cne->validate ();
1030
1031                                 CanvasNote* cn;
1032                                 CanvasHit* ch;
1033
1034                                 if ((cn = dynamic_cast<CanvasNote*>(cne)) != 0) {
1035                                         update_note (cn);
1036                                 } else if ((ch = dynamic_cast<CanvasHit*>(cne)) != 0) {
1037                                         update_hit (ch);
1038                                 }
1039
1040                                 if (visible) {
1041                                         cne->show ();
1042                                 } else {
1043                                         cne->hide ();
1044                                 }
1045
1046                         } else {
1047
1048                                 add_note (note, visible);
1049                         }
1050
1051                 } else {
1052
1053                         if ((cne = find_canvas_note (note)) != 0) {
1054                                 cne->validate ();
1055                                 cne->hide ();
1056                         }
1057                 }
1058         }
1059
1060
1061         /* remove note items that are no longer valid */
1062
1063         for (Events::iterator i = _events.begin(); i != _events.end(); ) {
1064                 if (!(*i)->valid ()) {
1065                         delete *i;
1066                         i = _events.erase (i);
1067                 } else {
1068                         ++i;
1069                 }
1070         }
1071
1072         _patch_changes.clear();
1073         _sys_exes.clear();
1074
1075         display_sysexes();
1076         display_patch_changes ();
1077
1078         _marked_for_selection.clear ();
1079         _marked_for_velocity.clear ();
1080
1081         /* we may have caused _events to contain things out of order (e.g. if a note
1082            moved earlier or later). we don't generally need them in time order, but
1083            make a note that a sort is required for those cases that require it.
1084         */
1085
1086         _sort_needed = true;
1087 }
1088
1089 void
1090 MidiRegionView::display_patch_changes ()
1091 {
1092         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1093         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
1094
1095         for (uint8_t i = 0; i < 16; ++i) {
1096                 if (chn_mask & (1<<i)) {
1097                         display_patch_changes_on_channel (i);
1098                 }
1099         }
1100 }
1101
1102 void
1103 MidiRegionView::display_patch_changes_on_channel (uint8_t channel)
1104 {
1105         for (MidiModel::PatchChanges::const_iterator i = _model->patch_changes().begin(); i != _model->patch_changes().end(); ++i) {
1106
1107                 if ((*i)->channel() != channel) {
1108                         continue;
1109                 }
1110
1111                 MIDI::Name::PatchPrimaryKey patch_key ((*i)->bank_msb (), (*i)->bank_lsb (), (*i)->program ());
1112
1113                 boost::shared_ptr<MIDI::Name::Patch> patch =
1114                         MIDI::Name::MidiPatchManager::instance().find_patch(
1115                                         _model_name, _custom_device_mode, channel, patch_key);
1116
1117                 if (patch != 0) {
1118                         add_canvas_patch_change (*i, patch->name());
1119                 } else {
1120                         char buf[16];
1121                         /* program and bank numbers are zero-based: convert to one-based */
1122                         snprintf (buf, 16, "%d\n%d", (*i)->program() + 1, (*i)->bank() + 1);
1123                         add_canvas_patch_change (*i, buf);
1124                 }
1125         }
1126 }
1127
1128 void
1129 MidiRegionView::display_sysexes()
1130 {
1131         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
1132                 Evoral::MusicalTime time = (*i)->time();
1133                 assert(time >= 0);
1134
1135                 ostringstream str;
1136                 str << hex;
1137                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
1138                         str << int((*i)->buffer()[b]);
1139                         if (b != (*i)->size() -1) {
1140                                 str << " ";
1141                         }
1142                 }
1143                 string text = str.str();
1144
1145                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
1146
1147                 double height = midi_stream_view()->contents_height();
1148
1149                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
1150                                 new CanvasSysEx(*this, *_note_group, text, height, x, 1.0));
1151
1152                 // Show unless patch change is beyond the region bounds
1153                 if (time - _region->start() >= _region->length() || time < _region->start()) {
1154                         sysex->hide();
1155                 } else {
1156                         sysex->show();
1157                 }
1158
1159                 _sys_exes.push_back(sysex);
1160         }
1161 }
1162
1163
1164 MidiRegionView::~MidiRegionView ()
1165 {
1166         in_destructor = true;
1167
1168         trackview.editor().hide_verbose_canvas_cursor ();
1169
1170         note_delete_connection.disconnect ();
1171
1172         delete _list_editor;
1173
1174         RegionViewGoingAway (this); /* EMIT_SIGNAL */
1175
1176         if (_active_notes) {
1177                 end_write();
1178         }
1179
1180         _selection.clear();
1181         clear_events();
1182
1183         delete _note_group;
1184         delete _note_diff_command;
1185         delete _step_edit_cursor;
1186         delete _temporary_note_group;
1187 }
1188
1189 void
1190 MidiRegionView::region_resized (const PropertyChange& what_changed)
1191 {
1192         RegionView::region_resized(what_changed);
1193
1194         if (what_changed.contains (ARDOUR::Properties::position)) {
1195                 set_duration(_region->length(), 0);
1196                 if (_enable_display) {
1197                         redisplay_model();
1198                 }
1199         }
1200 }
1201
1202 void
1203 MidiRegionView::reset_width_dependent_items (double pixel_width)
1204 {
1205         RegionView::reset_width_dependent_items(pixel_width);
1206         assert(_pixel_width == pixel_width);
1207
1208         if (_enable_display) {
1209                 redisplay_model();
1210         }
1211
1212         move_step_edit_cursor (_step_edit_cursor_position);
1213         set_step_edit_cursor_width (_step_edit_cursor_width);
1214 }
1215
1216 void
1217 MidiRegionView::set_height (double height)
1218 {
1219         static const double FUDGE = 2.0;
1220         const double old_height = _height;
1221         RegionView::set_height(height);
1222         _height = height - FUDGE;
1223
1224         apply_note_range(midi_stream_view()->lowest_note(),
1225                          midi_stream_view()->highest_note(),
1226                          height != old_height + FUDGE);
1227
1228         if (name_pixbuf) {
1229                 name_pixbuf->raise_to_top();
1230         }
1231
1232         for (PatchChanges::iterator x = _patch_changes.begin(); x != _patch_changes.end(); ++x) {
1233                 (*x)->set_height (midi_stream_view()->contents_height());
1234         }
1235
1236         if (_step_edit_cursor) {
1237                 _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
1238         }
1239 }
1240
1241
1242 /** Apply the current note range from the stream view
1243  * by repositioning/hiding notes as necessary
1244  */
1245 void
1246 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
1247 {
1248         if (!_enable_display) {
1249                 return;
1250         }
1251
1252         if (!force && _current_range_min == min && _current_range_max == max) {
1253                 return;
1254         }
1255
1256         _current_range_min = min;
1257         _current_range_max = max;
1258
1259         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
1260                 CanvasNoteEvent* event = *i;
1261                 boost::shared_ptr<NoteType> note (event->note());
1262
1263                 if (note->note() < _current_range_min ||
1264                     note->note() > _current_range_max) {
1265                         event->hide();
1266                 } else {
1267                         event->show();
1268                 }
1269
1270                 if (CanvasNote* cnote = dynamic_cast<CanvasNote*>(event)) {
1271
1272                         const double y1 = midi_stream_view()->note_to_y(note->note());
1273                         const double y2 = y1 + floor(midi_stream_view()->note_height());
1274
1275                         cnote->property_y1() = y1;
1276                         cnote->property_y2() = y2;
1277
1278                 } else if (CanvasHit* chit = dynamic_cast<CanvasHit*>(event)) {
1279
1280                         const double diamond_size = update_hit (chit);
1281
1282                         chit->set_height (diamond_size);
1283                 }
1284         }
1285 }
1286
1287 GhostRegion*
1288 MidiRegionView::add_ghost (TimeAxisView& tv)
1289 {
1290         CanvasNote* note;
1291
1292         double unit_position = _region->position () / samples_per_unit;
1293         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
1294         MidiGhostRegion* ghost;
1295
1296         if (mtv && mtv->midi_view()) {
1297                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
1298                    to allow having midi notes on top of note lines and waveforms.
1299                  */
1300                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
1301         } else {
1302                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
1303         }
1304
1305         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1306                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
1307                         ghost->add_note(note);
1308                 }
1309         }
1310
1311         ghost->set_height ();
1312         ghost->set_duration (_region->length() / samples_per_unit);
1313         ghosts.push_back (ghost);
1314
1315         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
1316
1317         return ghost;
1318 }
1319
1320
1321 /** Begin tracking note state for successive calls to add_event
1322  */
1323 void
1324 MidiRegionView::begin_write()
1325 {
1326         assert(!_active_notes);
1327         _active_notes = new CanvasNote*[128];
1328         for (unsigned i=0; i < 128; ++i) {
1329                 _active_notes[i] = 0;
1330         }
1331 }
1332
1333
1334 /** Destroy note state for add_event
1335  */
1336 void
1337 MidiRegionView::end_write()
1338 {
1339         delete[] _active_notes;
1340         _active_notes = 0;
1341         _marked_for_selection.clear();
1342         _marked_for_velocity.clear();
1343 }
1344
1345
1346 /** Resolve an active MIDI note (while recording).
1347  */
1348 void
1349 MidiRegionView::resolve_note(uint8_t note, double end_time)
1350 {
1351         if (midi_view()->note_mode() != Sustained) {
1352                 return;
1353         }
1354
1355         if (_active_notes && _active_notes[note]) {
1356
1357                 const framepos_t end_time_frames = beats_to_frames(end_time);
1358
1359                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1360                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1361                 _active_notes[note] = 0;
1362         }
1363 }
1364
1365
1366 /** Extend active notes to rightmost edge of region (if length is changed)
1367  */
1368 void
1369 MidiRegionView::extend_active_notes()
1370 {
1371         if (!_active_notes) {
1372                 return;
1373         }
1374
1375         for (unsigned i=0; i < 128; ++i) {
1376                 if (_active_notes[i]) {
1377                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1378                 }
1379         }
1380 }
1381
1382
1383 void
1384 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1385 {
1386         if (no_sound_notes || !trackview.editor().sound_notes()) {
1387                 return;
1388         }
1389
1390         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1391
1392         if (!route_ui || !route_ui->midi_track()) {
1393                 return;
1394         }
1395
1396         NotePlayer* np = new NotePlayer (route_ui->midi_track());
1397         np->add (note);
1398         np->play ();
1399 }
1400
1401 void
1402 MidiRegionView::play_midi_chord (vector<boost::shared_ptr<NoteType> > notes)
1403 {
1404         if (no_sound_notes || !trackview.editor().sound_notes()) {
1405                 return;
1406         }
1407
1408         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1409
1410         if (!route_ui || !route_ui->midi_track()) {
1411                 return;
1412         }
1413
1414         NotePlayer* np = new NotePlayer (route_ui->midi_track());
1415
1416         for (vector<boost::shared_ptr<NoteType> >::iterator n = notes.begin(); n != notes.end(); ++n) {
1417                 np->add (*n);
1418         }
1419
1420         np->play ();
1421 }
1422
1423
1424 bool
1425 MidiRegionView::note_in_region_range(const boost::shared_ptr<NoteType> note, bool& visible) const
1426 {
1427         const framepos_t note_start_frames = beats_to_frames(note->time());
1428
1429         bool outside = (note_start_frames - _region->start() >= _region->length()) ||
1430                 (note_start_frames < _region->start());
1431
1432         visible = (note->note() >= midi_stream_view()->lowest_note()) &&
1433                 (note->note() <= midi_stream_view()->highest_note());
1434
1435         return !outside;
1436 }
1437
1438 /** Update a canvas note's size from its model note.
1439  *  @param ev Canvas note to update.
1440  *  @param update_ghost_regions true to update the note in any ghost regions that we have, otherwise false.
1441  */
1442 void
1443 MidiRegionView::update_note (CanvasNote* ev, bool update_ghost_regions)
1444 {
1445         boost::shared_ptr<NoteType> note = ev->note();
1446
1447         const framepos_t note_start_frames = beats_to_frames(note->time());
1448
1449         /* trim note display to not overlap the end of its region */
1450         const framepos_t note_end_frames = min (beats_to_frames (note->end_time()), _region->start() + _region->length());
1451
1452         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1453         const double y1 = midi_stream_view()->note_to_y(note->note());
1454         const double note_endpixel = trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1455
1456         ev->property_x1() = x;
1457         ev->property_y1() = y1;
1458
1459         if (note->length() > 0) {
1460                 ev->property_x2() = note_endpixel;
1461         } else {
1462                 ev->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1463         }
1464
1465         ev->property_y2() = y1 + floor(midi_stream_view()->note_height());
1466
1467         if (note->length() == 0) {
1468                 if (_active_notes) {
1469                         assert(note->note() < 128);
1470                         // If this note is already active there's a stuck note,
1471                         // finish the old note rectangle
1472                         if (_active_notes[note->note()]) {
1473                                 CanvasNote* const old_rect = _active_notes[note->note()];
1474                                 boost::shared_ptr<NoteType> old_note = old_rect->note();
1475                                 old_rect->property_x2() = x;
1476                                 old_rect->property_outline_what() = (guint32) 0xF;
1477                         }
1478                         _active_notes[note->note()] = ev;
1479                 }
1480                 /* outline all but right edge */
1481                 ev->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1482         } else {
1483                 /* outline all edges */
1484                 ev->property_outline_what() = (guint32) 0xF;
1485         }
1486
1487         if (update_ghost_regions) {
1488                 for (std::vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1489                         MidiGhostRegion* gr = dynamic_cast<MidiGhostRegion*> (*i);
1490                         if (gr) {
1491                                 gr->update_note (ev);
1492                         }
1493                 }
1494         }
1495 }
1496
1497 double
1498 MidiRegionView::update_hit (CanvasHit* ev)
1499 {
1500         boost::shared_ptr<NoteType> note = ev->note();
1501
1502         const framepos_t note_start_frames = beats_to_frames(note->time());
1503         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1504         const double diamond_size = midi_stream_view()->note_height() / 2.0;
1505         const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1506
1507         ev->move_to (x, y);
1508
1509         return diamond_size;
1510 }
1511
1512 /** Add a MIDI note to the view (with length).
1513  *
1514  * If in sustained mode, notes with length 0 will be considered active
1515  * notes, and resolve_note should be called when the corresponding note off
1516  * event arrives, to properly display the note.
1517  */
1518 void
1519 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note, bool visible)
1520 {
1521         CanvasNoteEvent* event = 0;
1522
1523         assert(note->time() >= 0);
1524         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1525
1526         //ArdourCanvas::Group* const group = (ArdourCanvas::Group*) get_canvas_group();
1527
1528         if (midi_view()->note_mode() == Sustained) {
1529
1530                 CanvasNote* ev_rect = new CanvasNote(*this, *_note_group, note);
1531
1532                 update_note (ev_rect);
1533
1534                 event = ev_rect;
1535
1536                 MidiGhostRegion* gr;
1537
1538                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1539                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1540                                 gr->add_note(ev_rect);
1541                         }
1542                 }
1543
1544         } else if (midi_view()->note_mode() == Percussive) {
1545
1546                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1547
1548                 CanvasHit* ev_diamond = new CanvasHit(*this, *_note_group, diamond_size, note);
1549
1550                 update_hit (ev_diamond);
1551
1552                 event = ev_diamond;
1553
1554         } else {
1555                 event = 0;
1556         }
1557
1558         if (event) {
1559                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1560                         note_selected(event, true);
1561                 }
1562
1563                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1564                         event->show_velocity();
1565                 }
1566
1567                 event->on_channel_selection_change(_last_channel_selection);
1568                 _events.push_back(event);
1569
1570                 if (visible) {
1571                         event->show();
1572                 } else {
1573                         event->hide ();
1574                 }
1575         }
1576
1577         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1578         MidiStreamView* const view = mtv->midi_view();
1579
1580         view->update_note_range(note->note());
1581 }
1582
1583 void
1584 MidiRegionView::step_add_note (uint8_t channel, uint8_t number, uint8_t velocity,
1585                                Evoral::MusicalTime pos, Evoral::MusicalTime len)
1586 {
1587         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
1588
1589         /* potentially extend region to hold new note */
1590
1591         framepos_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
1592         framepos_t region_end = _region->position() + _region->length() - 1;
1593
1594         if (end_frame > region_end) {
1595                 _region->set_length (end_frame - _region->position(), this);
1596         }
1597
1598         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
1599         MidiStreamView* const view = mtv->midi_view();
1600
1601         view->update_note_range(new_note->note());
1602
1603         _marked_for_selection.clear ();
1604         clear_selection ();
1605
1606         start_note_diff_command (_("step add"));
1607         note_diff_add_note (new_note, true, false);
1608         apply_diff();
1609
1610         // last_step_edit_note = new_note;
1611 }
1612
1613 void
1614 MidiRegionView::step_sustain (Evoral::MusicalTime beats)
1615 {
1616         change_note_lengths (false, false, beats, false, true);
1617 }
1618
1619 void
1620 MidiRegionView::add_canvas_patch_change (MidiModel::PatchChangePtr patch, const string& displaytext)
1621 {
1622         assert (patch->time() >= 0);
1623
1624         const double x = trackview.editor().frame_to_pixel (beats_to_frames (patch->time()));
1625
1626         double const height = midi_stream_view()->contents_height();
1627
1628         boost::shared_ptr<CanvasPatchChange> patch_change = boost::shared_ptr<CanvasPatchChange>(
1629                 new CanvasPatchChange(*this, *_note_group,
1630                                         displaytext,
1631                                         height,
1632                                         x, 1.0,
1633                                         _model_name,
1634                                         _custom_device_mode,
1635                                         patch)
1636                 );
1637
1638         // Show unless patch change is beyond the region bounds
1639         if (patch->time() - _region->start() >= _region->length() || patch->time() < _region->start()) {
1640                 patch_change->hide();
1641         } else {
1642                 patch_change->show();
1643         }
1644
1645         _patch_changes.push_back (patch_change);
1646 }
1647
1648 void
1649 MidiRegionView::get_patch_key_at (Evoral::MusicalTime time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1650 {
1651         MidiModel::PatchChanges::iterator i = _model->patch_change_lower_bound (time);
1652         while (i != _model->patch_changes().end() && (*i)->channel() != channel) {
1653                 ++i;
1654         }
1655
1656         if (i != _model->patch_changes().end()) {
1657                 key.msb = (*i)->bank_msb ();
1658                 key.lsb = (*i)->bank_lsb ();
1659                 key.program_number = (*i)->program ();
1660         } else {
1661                 key.msb = key.lsb = key.program_number = 0;
1662         }
1663
1664         assert (key.is_sane());
1665 }
1666
1667
1668 void
1669 MidiRegionView::change_patch_change (CanvasPatchChange& pc, const MIDI::Name::PatchPrimaryKey& new_patch)
1670 {
1671         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("alter patch change"));
1672
1673         if (pc.patch()->program() != new_patch.program_number) {
1674                 c->change_program (pc.patch (), new_patch.program_number);
1675         }
1676
1677         int const new_bank = (new_patch.msb << 7) | new_patch.lsb;
1678         if (pc.patch()->bank() != new_bank) {
1679                 c->change_bank (pc.patch (), new_bank);
1680         }
1681
1682         _model->apply_command (*trackview.session(), c);
1683
1684         _patch_changes.clear ();
1685         display_patch_changes ();
1686 }
1687
1688 void
1689 MidiRegionView::change_patch_change (MidiModel::PatchChangePtr old_change, const Evoral::PatchChange<Evoral::MusicalTime> & new_change)
1690 {
1691         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("alter patch change"));
1692
1693         if (old_change->time() != new_change.time()) {
1694                 c->change_time (old_change, new_change.time());
1695         }
1696
1697         if (old_change->channel() != new_change.channel()) {
1698                 c->change_channel (old_change, new_change.channel());
1699         }
1700
1701         if (old_change->program() != new_change.program()) {
1702                 c->change_program (old_change, new_change.program());
1703         }
1704
1705         if (old_change->bank() != new_change.bank()) {
1706                 c->change_bank (old_change, new_change.bank());
1707         }
1708
1709         _model->apply_command (*trackview.session(), c);
1710
1711         _patch_changes.clear ();
1712         display_patch_changes ();
1713 }
1714
1715 /** Add a patch change to the region.
1716  *  @param t Time in frames relative to region position
1717  *  @param patch Patch to add; time and channel are ignored (time is converted from t, and channel comes from
1718  *  get_channel_for_add())
1719  */
1720 void
1721 MidiRegionView::add_patch_change (framecnt_t t, Evoral::PatchChange<Evoral::MusicalTime> const & patch)
1722 {
1723         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("add patch change"));
1724         c->add (MidiModel::PatchChangePtr (
1725                         new Evoral::PatchChange<Evoral::MusicalTime> (
1726                                 frames_to_beats (t + midi_region()->start()), get_channel_for_add(), patch.program(), patch.bank()
1727                                 )
1728                         ));
1729
1730         _model->apply_command (*trackview.session(), c);
1731
1732         _patch_changes.clear ();
1733         display_patch_changes ();
1734 }
1735
1736 void
1737 MidiRegionView::move_patch_change (CanvasPatchChange& pc, Evoral::MusicalTime t)
1738 {
1739         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("move patch change"));
1740         c->change_time (pc.patch (), t);
1741         _model->apply_command (*trackview.session(), c);
1742
1743         _patch_changes.clear ();
1744         display_patch_changes ();
1745 }
1746
1747 void
1748 MidiRegionView::delete_patch_change (CanvasPatchChange* pc)
1749 {
1750         MidiModel::PatchChangeDiffCommand* c = _model->new_patch_change_diff_command (_("delete patch change"));
1751         c->remove (pc->patch ());
1752         _model->apply_command (*trackview.session(), c);
1753
1754         _patch_changes.clear ();
1755         display_patch_changes ();
1756 }
1757
1758 void
1759 MidiRegionView::previous_patch (CanvasPatchChange& patch)
1760 {
1761         if (patch.patch()->program() < 127) {
1762                 MIDI::Name::PatchPrimaryKey key;
1763                 get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
1764                 key.program_number++;
1765                 change_patch_change (patch, key);
1766         }
1767 }
1768
1769 void
1770 MidiRegionView::next_patch (CanvasPatchChange& patch)
1771 {
1772         if (patch.patch()->program() > 0) {
1773                 MIDI::Name::PatchPrimaryKey key;
1774                 get_patch_key_at (patch.patch()->time(), patch.patch()->channel(), key);
1775                 key.program_number--;
1776                 change_patch_change (patch, key);
1777         }
1778 }
1779
1780 void
1781 MidiRegionView::maybe_remove_deleted_note_from_selection (CanvasNoteEvent* cne)
1782 {
1783         if (_selection.empty()) {
1784                 return;
1785         }
1786
1787         if (_selection.erase (cne) > 0) {
1788                 cerr << "Erased a CNE from selection\n";
1789         }
1790 }
1791
1792 void
1793 MidiRegionView::delete_selection()
1794 {
1795         if (_selection.empty()) {
1796                 return;
1797         }
1798
1799         start_note_diff_command (_("delete selection"));
1800
1801         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1802                 if ((*i)->selected()) {
1803                         _note_diff_command->remove((*i)->note());
1804                 }
1805         }
1806
1807         _selection.clear();
1808
1809         apply_diff ();
1810 }
1811
1812 void
1813 MidiRegionView::delete_note (boost::shared_ptr<NoteType> n)
1814 {
1815         start_note_diff_command (_("delete note"));
1816         _note_diff_command->remove (n);
1817         apply_diff ();
1818
1819         trackview.editor().hide_verbose_canvas_cursor ();
1820 }
1821
1822 void
1823 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1824 {
1825         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1826                 if ((*i)->selected() && (*i) != ev) {
1827                         (*i)->set_selected(false);
1828                         (*i)->hide_velocity();
1829                 }
1830         }
1831
1832         _selection.clear();
1833 }
1834
1835 void
1836 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1837 {
1838         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1839                 if ((*i) != ev) {
1840
1841                         Selection::iterator tmp = i;
1842                         ++tmp;
1843
1844                         (*i)->set_selected (false);
1845                         _selection.erase (i);
1846
1847                         i = tmp;
1848
1849                 } else {
1850                         ++i;
1851                 }
1852         }
1853
1854         /* don't bother with removing this regionview from the editor selection,
1855            since we're about to add another note, and thus put/keep this
1856            regionview in the editor selection.
1857         */
1858
1859         if (!ev->selected()) {
1860                 add_to_selection (ev);
1861         }
1862 }
1863
1864 void
1865 MidiRegionView::select_all_notes ()
1866 {
1867         clear_selection ();
1868
1869         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1870                 add_to_selection (*i);
1871         }
1872 }
1873
1874 void
1875 MidiRegionView::select_matching_notes (uint8_t notenum, uint16_t channel_mask, bool add, bool extend)
1876 {
1877         uint8_t low_note = 127;
1878         uint8_t high_note = 0;
1879         MidiModel::Notes& notes (_model->notes());
1880         _optimization_iterator = _events.begin();
1881
1882         if (!add) {
1883                 clear_selection ();
1884         }
1885
1886         if (extend && _selection.empty()) {
1887                 extend = false;
1888         }
1889
1890         if (extend) {
1891
1892                 /* scan existing selection to get note range */
1893
1894                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1895                         if ((*i)->note()->note() < low_note) {
1896                                 low_note = (*i)->note()->note();
1897                         }
1898                         if ((*i)->note()->note() > high_note) {
1899                                 high_note = (*i)->note()->note();
1900                         }
1901                 }
1902
1903                 low_note = min (low_note, notenum);
1904                 high_note = max (high_note, notenum);
1905         }
1906
1907         no_sound_notes = true;
1908
1909         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1910
1911                 boost::shared_ptr<NoteType> note (*n);
1912                 CanvasNoteEvent* cne;
1913                 bool select = false;
1914
1915                 if (((1 << note->channel()) & channel_mask) != 0) {
1916                         if (extend) {
1917                                 if ((note->note() >= low_note && note->note() <= high_note)) {
1918                                         select = true;
1919                                 }
1920                         } else if (note->note() == notenum) {
1921                                 select = true;
1922                         }
1923                 }
1924
1925                 if (select) {
1926                         if ((cne = find_canvas_note (note)) != 0) {
1927                                 // extend is false because we've taken care of it,
1928                                 // since it extends by time range, not pitch.
1929                                 note_selected (cne, add, false);
1930                         }
1931                 }
1932
1933                 add = true; // we need to add all remaining matching notes, even if the passed in value was false (for "set")
1934
1935         }
1936
1937         no_sound_notes = false;
1938 }
1939
1940 void
1941 MidiRegionView::toggle_matching_notes (uint8_t notenum, uint16_t channel_mask)
1942 {
1943         MidiModel::Notes& notes (_model->notes());
1944         _optimization_iterator = _events.begin();
1945
1946         for (MidiModel::Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
1947
1948                 boost::shared_ptr<NoteType> note (*n);
1949                 CanvasNoteEvent* cne;
1950
1951                 if (note->note() == notenum && (((0x0001 << note->channel()) & channel_mask) != 0)) {
1952                         if ((cne = find_canvas_note (note)) != 0) {
1953                                 if (cne->selected()) {
1954                                         note_deselected (cne);
1955                                 } else {
1956                                         note_selected (cne, true, false);
1957                                 }
1958                         }
1959                 }
1960         }
1961 }
1962
1963 void
1964 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1965 {
1966         if (!add) {
1967                 clear_selection_except(ev);
1968         }
1969
1970         if (!extend) {
1971
1972                 if (!ev->selected()) {
1973                         add_to_selection (ev);
1974                 }
1975
1976         } else {
1977                 /* find end of latest note selected, select all between that and the start of "ev" */
1978
1979                 Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
1980                 Evoral::MusicalTime latest = 0;
1981
1982                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1983                         if ((*i)->note()->end_time() > latest) {
1984                                 latest = (*i)->note()->end_time();
1985                         }
1986                         if ((*i)->note()->time() < earliest) {
1987                                 earliest = (*i)->note()->time();
1988                         }
1989                 }
1990
1991                 if (ev->note()->end_time() > latest) {
1992                         latest = ev->note()->end_time();
1993                 }
1994
1995                 if (ev->note()->time() < earliest) {
1996                         earliest = ev->note()->time();
1997                 }
1998
1999                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2000
2001                         /* find notes entirely within OR spanning the earliest..latest range */
2002
2003                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
2004                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
2005                                 add_to_selection (*i);
2006                         }
2007
2008 #if 0
2009                         /* if events were guaranteed to be time sorted, we could do this.
2010                            but as of sept 10th 2009, they no longer are.
2011                         */
2012
2013                         if ((*i)->note()->time() > latest) {
2014                                 break;
2015                         }
2016 #endif
2017                 }
2018         }
2019 }
2020
2021 void
2022 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev)
2023 {
2024         remove_from_selection (ev);
2025 }
2026
2027 void
2028 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
2029 {
2030         if (x1 > x2) {
2031                 swap (x1, x2);
2032         }
2033
2034         if (y1 > y2) {
2035                 swap (y1, y2);
2036         }
2037
2038         // TODO: Make this faster by storing the last updated selection rect, and only
2039         // adjusting things that are in the area that appears/disappeared.
2040         // We probably need a tree to be able to find events in O(log(n)) time.
2041
2042         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2043
2044                 /* check if any corner of the note is inside the rect
2045
2046                    Notes:
2047                      1) this is computing "touched by", not "contained by" the rect.
2048                      2) this does not require that events be sorted in time.
2049                  */
2050
2051                 const double ix1 = (*i)->x1();
2052                 const double ix2 = (*i)->x2();
2053                 const double iy1 = (*i)->y1();
2054                 const double iy2 = (*i)->y2();
2055
2056                 if ((ix1 >= x1 && ix1 <= x2 && iy1 >= y1 && iy1 <= y2) ||
2057                     (ix1 >= x1 && ix1 <= x2 && iy2 >= y1 && iy2 <= y2) ||
2058                     (ix2 >= x1 && ix2 <= x2 && iy1 >= y1 && iy1 <= y2) ||
2059                     (ix2 >= x1 && ix2 <= x2 && iy2 >= y1 && iy2 <= y2)) {
2060
2061                         // Inside rectangle
2062                         if (!(*i)->selected()) {
2063                                 add_to_selection (*i);
2064                         }
2065                 } else if ((*i)->selected()) {
2066                         // Not inside rectangle
2067                         remove_from_selection (*i);
2068                 }
2069         }
2070 }
2071
2072 void
2073 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
2074 {
2075         Selection::iterator i = _selection.find (ev);
2076
2077         if (i != _selection.end()) {
2078                 _selection.erase (i);
2079         }
2080
2081         ev->set_selected (false);
2082         ev->hide_velocity ();
2083
2084         if (_selection.empty()) {
2085                 PublicEditor& editor (trackview.editor());
2086                 editor.get_selection().remove (this);
2087         }
2088 }
2089
2090 void
2091 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
2092 {
2093         bool add_mrv_selection = false;
2094
2095         if (_selection.empty()) {
2096                 add_mrv_selection = true;
2097         }
2098
2099         if (_selection.insert (ev).second) {
2100                 ev->set_selected (true);
2101                 play_midi_note ((ev)->note());
2102         }
2103
2104         if (add_mrv_selection) {
2105                 PublicEditor& editor (trackview.editor());
2106                 editor.get_selection().add (this);
2107         }
2108 }
2109
2110 void
2111 MidiRegionView::move_selection(double dx, double dy, double cumulative_dy)
2112 {
2113         typedef vector<boost::shared_ptr<NoteType> > PossibleChord;
2114         PossibleChord to_play;
2115         Evoral::MusicalTime earliest = Evoral::MaxMusicalTime;
2116
2117         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2118                 if ((*i)->note()->time() < earliest) {
2119                         earliest = (*i)->note()->time();
2120                 }
2121         }
2122
2123         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2124                 if (Evoral::musical_time_equal ((*i)->note()->time(), earliest)) {
2125                         to_play.push_back ((*i)->note());
2126                 }
2127                 (*i)->move_event(dx, dy);
2128         }
2129
2130         if (dy && !_selection.empty() && !no_sound_notes && trackview.editor().sound_notes()) {
2131
2132                 if (to_play.size() > 1) {
2133
2134                         PossibleChord shifted;
2135
2136                         for (PossibleChord::iterator n = to_play.begin(); n != to_play.end(); ++n) {
2137                                 boost::shared_ptr<NoteType> moved_note (new NoteType (**n));
2138                                 moved_note->set_note (moved_note->note() + cumulative_dy);
2139                                 shifted.push_back (moved_note);
2140                         }
2141
2142                         play_midi_chord (shifted);
2143
2144                 } else if (!to_play.empty()) {
2145
2146                         boost::shared_ptr<NoteType> moved_note (new NoteType (*to_play.front()));
2147                         moved_note->set_note (moved_note->note() + cumulative_dy);
2148                         play_midi_note (moved_note);
2149                 }
2150         }
2151 }
2152
2153 void
2154 MidiRegionView::note_dropped(CanvasNoteEvent *, frameoffset_t dt, int8_t dnote)
2155 {
2156         assert (!_selection.empty());
2157
2158         uint8_t lowest_note_in_selection  = 127;
2159         uint8_t highest_note_in_selection = 0;
2160         uint8_t highest_note_difference = 0;
2161
2162         // find highest and lowest notes first
2163
2164         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2165                 uint8_t pitch = (*i)->note()->note();
2166                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
2167                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
2168         }
2169
2170         /*
2171         cerr << "dnote: " << (int) dnote << endl;
2172         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
2173              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
2174         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
2175              << int(highest_note_in_selection) << endl;
2176         cerr << "selection size: " << _selection.size() << endl;
2177         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
2178         */
2179
2180         // Make sure the note pitch does not exceed the MIDI standard range
2181         if (highest_note_in_selection + dnote > 127) {
2182                 highest_note_difference = highest_note_in_selection - 127;
2183         }
2184
2185         start_note_diff_command (_("move notes"));
2186
2187         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
2188
2189                 Evoral::MusicalTime new_time = frames_to_beats (beats_to_frames ((*i)->note()->time()) + dt);
2190
2191                 if (new_time < 0) {
2192                         continue;
2193                 }
2194
2195                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::StartTime, new_time);
2196
2197                 uint8_t original_pitch = (*i)->note()->note();
2198                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
2199
2200                 // keep notes in standard midi range
2201                 clamp_to_0_127(new_pitch);
2202
2203                 // keep original pitch if note is dragged outside valid midi range
2204                 if ((original_pitch != 0 && new_pitch == 0)
2205                                 || (original_pitch != 127 && new_pitch == 127)) {
2206                         new_pitch = original_pitch;
2207                 }
2208
2209                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
2210                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
2211
2212                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::NoteNumber, new_pitch);
2213         }
2214
2215         apply_diff();
2216
2217         // care about notes being moved beyond the upper/lower bounds on the canvas
2218         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
2219             highest_note_in_selection > midi_stream_view()->highest_note()) {
2220                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
2221         }
2222 }
2223
2224 framepos_t
2225 MidiRegionView::snap_pixel_to_frame(double x)
2226 {
2227         PublicEditor& editor = trackview.editor();
2228         // x is region relative, convert it to global absolute frames
2229         framepos_t frame = editor.pixel_to_frame(x) + _region->position();
2230         editor.snap_to(frame);
2231         return frame - _region->position(); // convert back to region relative
2232 }
2233
2234 framepos_t
2235 MidiRegionView::snap_frame_to_frame(framepos_t x)
2236 {
2237         PublicEditor& editor = trackview.editor();
2238         // x is region relative, convert it to global absolute frames
2239         framepos_t frame = x + _region->position();
2240         editor.snap_to(frame);
2241         return frame - _region->position(); // convert back to region relative
2242 }
2243
2244 double
2245 MidiRegionView::snap_to_pixel(double x)
2246 {
2247         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
2248 }
2249
2250 double
2251 MidiRegionView::get_position_pixels()
2252 {
2253         framepos_t region_frame = get_position();
2254         return trackview.editor().frame_to_pixel(region_frame);
2255 }
2256
2257 double
2258 MidiRegionView::get_end_position_pixels()
2259 {
2260         framepos_t frame = get_position() + get_duration ();
2261         return trackview.editor().frame_to_pixel(frame);
2262 }
2263
2264 framepos_t
2265 MidiRegionView::beats_to_frames(double beats) const
2266 {
2267         return _time_converter.to(beats);
2268 }
2269
2270 double
2271 MidiRegionView::frames_to_beats(framepos_t frames) const
2272 {
2273         return _time_converter.from(frames);
2274 }
2275
2276 void
2277 MidiRegionView::begin_resizing (bool /*at_front*/)
2278 {
2279         _resize_data.clear();
2280
2281         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2282                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
2283
2284                 // only insert CanvasNotes into the map
2285                 if (note) {
2286                         NoteResizeData *resize_data = new NoteResizeData();
2287                         resize_data->canvas_note = note;
2288
2289                         // create a new SimpleRect from the note which will be the resize preview
2290                         SimpleRect *resize_rect = new SimpleRect(
2291                                         *_note_group, note->x1(), note->y1(), note->x2(), note->y2());
2292
2293                         // calculate the colors: get the color settings
2294                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
2295                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
2296                                         128);
2297
2298                         // make the resize preview notes more transparent and bright
2299                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
2300
2301                         // calculate color based on note velocity
2302                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
2303                                 CanvasNoteEvent::meter_style_fill_color(note->note()->velocity(), note->selected()),
2304                                         fill_color,
2305                                         0.85);
2306
2307                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
2308                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
2309
2310                         resize_data->resize_rect = resize_rect;
2311                         _resize_data.push_back(resize_data);
2312                 }
2313         }
2314 }
2315
2316 /** Update resizing notes while user drags.
2317  * @param primary `primary' note for the drag; ie the one that is used as the reference in non-relative mode.
2318  * @param at_front which end of the note (true == note on, false == note off)
2319  * @param delta_x change in mouse position since the start of the drag
2320  * @param relative true if relative resizing is taking place, false if absolute resizing.  This only makes
2321  * a difference when multiple notes are being resized; in relative mode, each note's length is changed by the
2322  * amount of the drag.  In non-relative mode, all selected notes are set to have the same start or end point
2323  * as the \a primary note.
2324  */
2325 void
2326 MidiRegionView::update_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at_front, double delta_x, bool relative)
2327 {
2328         bool cursor_set = false;
2329
2330         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2331                 SimpleRect* resize_rect = (*i)->resize_rect;
2332                 CanvasNote* canvas_note = (*i)->canvas_note;
2333                 double current_x;
2334
2335                 if (at_front) {
2336                         if (relative) {
2337                                 current_x = canvas_note->x1() + delta_x;
2338                         } else {
2339                                 current_x = primary->x1() + delta_x;
2340                         }
2341                 } else {
2342                         if (relative) {
2343                                 current_x = canvas_note->x2() + delta_x;
2344                         } else {
2345                                 current_x = primary->x2() + delta_x;
2346                         }
2347                 }
2348
2349                 if (at_front) {
2350                         resize_rect->property_x1() = snap_to_pixel(current_x);
2351                         resize_rect->property_x2() = canvas_note->x2();
2352                 } else {
2353                         resize_rect->property_x2() = snap_to_pixel(current_x);
2354                         resize_rect->property_x1() = canvas_note->x1();
2355                 }
2356
2357                 if (!cursor_set) {
2358                         double beats;
2359
2360                         beats = snap_pixel_to_frame (current_x);
2361                         beats = frames_to_beats (beats);
2362
2363                         double len;
2364
2365                         if (at_front) {
2366                                 if (beats < canvas_note->note()->end_time()) {
2367                                         len = canvas_note->note()->time() - beats;
2368                                         len += canvas_note->note()->length();
2369                                 } else {
2370                                         len = 0;
2371                                 }
2372                         } else {
2373                                 if (beats >= canvas_note->note()->time()) {
2374                                         len = beats - canvas_note->note()->time();
2375                                 } else {
2376                                         len = 0;
2377                                 }
2378                         }
2379
2380                         char buf[16];
2381                         snprintf (buf, sizeof (buf), "%.3g beats", len);
2382                         trackview.editor().show_verbose_canvas_cursor_with (buf);
2383
2384                         cursor_set = true;
2385                 }
2386
2387         }
2388 }
2389
2390
2391 /** Finish resizing notes when the user releases the mouse button.
2392  *  Parameters the same as for \a update_resizing().
2393  */
2394 void
2395 MidiRegionView::commit_resizing (ArdourCanvas::CanvasNoteEvent* primary, bool at_front, double delta_x, bool relative)
2396 {
2397         start_note_diff_command (_("resize notes"));
2398
2399         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
2400                 CanvasNote*  canvas_note = (*i)->canvas_note;
2401                 SimpleRect*  resize_rect = (*i)->resize_rect;
2402                 double current_x;
2403
2404                 if (at_front) {
2405                         if (relative) {
2406                                 current_x = canvas_note->x1() + delta_x;
2407                         } else {
2408                                 current_x = primary->x1() + delta_x;
2409                         }
2410                 } else {
2411                         if (relative) {
2412                                 current_x = canvas_note->x2() + delta_x;
2413                         } else {
2414                                 current_x = primary->x2() + delta_x;
2415                         }
2416                 }
2417
2418                 current_x = snap_pixel_to_frame (current_x);
2419                 current_x = frames_to_beats (current_x);
2420
2421                 if (at_front && current_x < canvas_note->note()->end_time()) {
2422                         note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::StartTime, current_x);
2423
2424                         double len = canvas_note->note()->time() - current_x;
2425                         len += canvas_note->note()->length();
2426
2427                         if (len > 0) {
2428                                 /* XXX convert to beats */
2429                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2430                         }
2431                 }
2432
2433                 if (!at_front) {
2434                         double len = current_x - canvas_note->note()->time();
2435
2436                         if (len > 0) {
2437                                 /* XXX convert to beats */
2438                                 note_diff_add_change (canvas_note, MidiModel::NoteDiffCommand::Length, len);
2439                         }
2440                 }
2441
2442                 delete resize_rect;
2443                 delete (*i);
2444         }
2445
2446         _resize_data.clear();
2447         apply_diff();
2448 }
2449
2450 void
2451 MidiRegionView::change_note_channel (CanvasNoteEvent* event, int8_t channel)
2452 {
2453         note_diff_add_change (event, MidiModel::NoteDiffCommand::Channel, (uint8_t) channel);
2454 }
2455
2456 void
2457 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
2458 {
2459         uint8_t new_velocity;
2460
2461         if (relative) {
2462                 new_velocity = event->note()->velocity() + velocity;
2463                 clamp_to_0_127(new_velocity);
2464         } else {
2465                 new_velocity = velocity;
2466         }
2467
2468         event->set_selected (event->selected()); // change color
2469
2470         note_diff_add_change (event, MidiModel::NoteDiffCommand::Velocity, new_velocity);
2471 }
2472
2473 void
2474 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
2475 {
2476         uint8_t new_note;
2477
2478         if (relative) {
2479                 new_note = event->note()->note() + note;
2480         } else {
2481                 new_note = note;
2482         }
2483
2484         clamp_to_0_127 (new_note);
2485         note_diff_add_change (event, MidiModel::NoteDiffCommand::NoteNumber, new_note);
2486 }
2487
2488 void
2489 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
2490 {
2491         bool change_start = false;
2492         bool change_length = false;
2493         Evoral::MusicalTime new_start = 0;
2494         Evoral::MusicalTime new_length = 0;
2495
2496         /* NOTE: the semantics of the two delta arguments are slightly subtle:
2497
2498            front_delta: if positive - move the start of the note later in time (shortening it)
2499                         if negative - move the start of the note earlier in time (lengthening it)
2500
2501            end_delta:   if positive - move the end of the note later in time (lengthening it)
2502                         if negative - move the end of the note earlier in time (shortening it)
2503          */
2504
2505         if (front_delta) {
2506                 if (front_delta < 0) {
2507
2508                         if (event->note()->time() < -front_delta) {
2509                                 new_start = 0;
2510                         } else {
2511                                 new_start = event->note()->time() + front_delta; // moves earlier
2512                         }
2513
2514                         /* start moved toward zero, so move the end point out to where it used to be.
2515                            Note that front_delta is negative, so this increases the length.
2516                         */
2517
2518                         new_length = event->note()->length() - front_delta;
2519                         change_start = true;
2520                         change_length = true;
2521
2522                 } else {
2523
2524                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
2525
2526                         if (new_pos < event->note()->end_time()) {
2527                                 new_start = event->note()->time() + front_delta;
2528                                 /* start moved toward the end, so move the end point back to where it used to be */
2529                                 new_length = event->note()->length() - front_delta;
2530                                 change_start = true;
2531                                 change_length = true;
2532                         }
2533                 }
2534
2535         }
2536
2537         if (end_delta) {
2538                 bool can_change = true;
2539                 if (end_delta < 0) {
2540                         if (event->note()->length() < -end_delta) {
2541                                 can_change = false;
2542                         }
2543                 }
2544
2545                 if (can_change) {
2546                         new_length = event->note()->length() + end_delta;
2547                         change_length = true;
2548                 }
2549         }
2550
2551         if (change_start) {
2552                 note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_start);
2553         }
2554
2555         if (change_length) {
2556                 note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, new_length);
2557         }
2558 }
2559
2560 void
2561 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
2562 {
2563         Evoral::MusicalTime new_time;
2564
2565         if (relative) {
2566                 if (delta < 0.0) {
2567                         if (event->note()->time() < -delta) {
2568                                 new_time = 0;
2569                         } else {
2570                                 new_time = event->note()->time() + delta;
2571                         }
2572                 } else {
2573                         new_time = event->note()->time() + delta;
2574                 }
2575         } else {
2576                 new_time = delta;
2577         }
2578
2579         note_diff_add_change (event, MidiModel::NoteDiffCommand::StartTime, new_time);
2580 }
2581
2582 void
2583 MidiRegionView::change_note_length (CanvasNoteEvent* event, Evoral::MusicalTime t)
2584 {
2585         note_diff_add_change (event, MidiModel::NoteDiffCommand::Length, t);
2586 }
2587
2588 void
2589 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
2590 {
2591         int8_t delta;
2592
2593         if (_selection.empty()) {
2594                 return;
2595         }
2596
2597         if (fine) {
2598                 delta = 1;
2599         } else {
2600                 delta = 10;
2601         }
2602
2603         if (!up) {
2604                 delta = -delta;
2605         }
2606
2607         if (!allow_smush) {
2608                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2609                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
2610                                 return;
2611                         }
2612                 }
2613         }
2614
2615         start_note_diff_command (_("change velocities"));
2616
2617         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
2618                 Selection::iterator next = i;
2619                 ++next;
2620                 change_note_velocity (*i, delta, true);
2621                 i = next;
2622         }
2623
2624         apply_diff();
2625
2626         if (!_selection.empty()) {
2627                 char buf[24];
2628                 snprintf (buf, sizeof (buf), "Vel %d",
2629                           (int) (*_selection.begin())->note()->velocity());
2630                 trackview.editor().show_verbose_canvas_cursor_with (buf, 10, 10);
2631         }
2632 }
2633
2634
2635 void
2636 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
2637 {
2638         if (_selection.empty()) {
2639                 return;
2640         }
2641
2642         int8_t delta;
2643
2644         if (fine) {
2645                 delta = 1;
2646         } else {
2647                 delta = 12;
2648         }
2649
2650         if (!up) {
2651                 delta = -delta;
2652         }
2653
2654         if (!allow_smush) {
2655                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2656                         if (!up) {
2657                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2658                                         return;
2659                                 }
2660                         } else {
2661                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2662                                         return;
2663                                 }
2664                         }
2665                 }
2666         }
2667
2668         start_note_diff_command (_("transpose"));
2669
2670         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2671                 Selection::iterator next = i;
2672                 ++next;
2673                 change_note_note (*i, delta, true);
2674                 i = next;
2675         }
2676
2677         apply_diff ();
2678 }
2679
2680 void
2681 MidiRegionView::change_note_lengths (bool fine, bool shorter, Evoral::MusicalTime delta, bool start, bool end)
2682 {
2683         if (delta == 0.0) {
2684                 if (fine) {
2685                         delta = 1.0/128.0;
2686                 } else {
2687                         /* grab the current grid distance */
2688                         bool success;
2689                         delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2690                         if (!success) {
2691                                 /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2692                                 cerr << "Grid type not available as beats - TO BE FIXED\n";
2693                                 return;
2694                         }
2695                 }
2696         }
2697
2698         if (shorter) {
2699                 delta = -delta;
2700         }
2701
2702         start_note_diff_command (_("change note lengths"));
2703
2704         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2705                 Selection::iterator next = i;
2706                 ++next;
2707
2708                 /* note the negation of the delta for start */
2709
2710                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2711                 i = next;
2712         }
2713
2714         apply_diff ();
2715
2716 }
2717
2718 void
2719 MidiRegionView::nudge_notes (bool forward)
2720 {
2721         if (_selection.empty()) {
2722                 return;
2723         }
2724
2725         /* pick a note as the point along the timeline to get the nudge distance.
2726            its not necessarily the earliest note, so we may want to pull the notes out
2727            into a vector and sort before using the first one.
2728         */
2729
2730         framepos_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2731         framepos_t unused;
2732         framepos_t distance;
2733
2734         if (trackview.editor().snap_mode() == Editing::SnapOff) {
2735
2736                 /* grid is off - use nudge distance */
2737
2738                 distance = trackview.editor().get_nudge_distance (ref_point, unused);
2739
2740         } else {
2741
2742                 /* use grid */
2743
2744                 framepos_t next_pos = ref_point;
2745
2746                 if (forward) {
2747                         if (max_framepos - 1 < next_pos) {
2748                                 next_pos += 1;
2749                         }
2750                 } else {
2751                         if (next_pos == 0) {
2752                                 return;
2753                         }
2754                         next_pos -= 1;
2755                 }
2756
2757                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2758                 distance = ref_point - next_pos;
2759         }
2760
2761         if (distance == 0) {
2762                 return;
2763         }
2764
2765         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2766
2767         if (!forward) {
2768                 delta = -delta;
2769         }
2770
2771         start_note_diff_command (_("nudge"));
2772
2773         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2774                 Selection::iterator next = i;
2775                 ++next;
2776                 change_note_time (*i, delta, true);
2777                 i = next;
2778         }
2779
2780         apply_diff ();
2781 }
2782
2783 void
2784 MidiRegionView::change_channel(uint8_t channel)
2785 {
2786         start_note_diff_command(_("change channel"));
2787         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2788                 note_diff_add_change (*i, MidiModel::NoteDiffCommand::Channel, channel);
2789         }
2790
2791         apply_diff();
2792 }
2793
2794
2795 void
2796 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2797 {
2798         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2799
2800         pre_enter_cursor = editor->get_canvas_cursor ();
2801
2802         if (_mouse_state == SelectTouchDragging) {
2803                 note_selected (ev, true);
2804         }
2805
2806         show_verbose_canvas_cursor (ev->note ());
2807 }
2808
2809 void
2810 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent*)
2811 {
2812         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2813
2814         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2815                 (*i)->hide_velocity ();
2816         }
2817
2818         editor->hide_verbose_canvas_cursor ();
2819
2820         if (pre_enter_cursor) {
2821                 editor->set_canvas_cursor (pre_enter_cursor);
2822                 pre_enter_cursor = 0;
2823         }
2824 }
2825
2826 void
2827 MidiRegionView::patch_entered (ArdourCanvas::CanvasPatchChange* ev)
2828 {
2829         ostringstream s;
2830         s << ((int) ev->patch()->program() + 1) << ":" << (ev->patch()->bank() + 1);
2831         trackview.editor().show_verbose_canvas_cursor_with (s.str().c_str(), 10, 20);
2832 }
2833
2834 void
2835 MidiRegionView::patch_left (ArdourCanvas::CanvasPatchChange *)
2836 {
2837         trackview.editor().hide_verbose_canvas_cursor ();
2838 }
2839
2840 void
2841 MidiRegionView::note_mouse_position (float x_fraction, float /*y_fraction*/, bool can_set_cursor)
2842 {
2843         Editor* editor = dynamic_cast<Editor*>(&trackview.editor());
2844
2845         if (x_fraction > 0.0 && x_fraction < 0.25) {
2846                 editor->set_canvas_cursor (editor->cursors()->left_side_trim);
2847         } else if (x_fraction >= 0.75 && x_fraction < 1.0) {
2848                 editor->set_canvas_cursor (editor->cursors()->right_side_trim);
2849         } else {
2850                 if (pre_enter_cursor && can_set_cursor) {
2851                         editor->set_canvas_cursor (pre_enter_cursor);
2852                 }
2853         }
2854 }
2855
2856 void
2857 MidiRegionView::set_frame_color()
2858 {
2859         if (!frame) {
2860                 return;
2861         }
2862
2863         if (_selected) {
2864                 frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2865         } else if (high_enough_for_name) {
2866                 frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2867         } else {
2868                 frame->property_fill_color_rgba() = fill_color;
2869         }
2870 }
2871
2872 void
2873 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2874 {
2875         switch (mode) {
2876         case AllChannels:
2877         case FilterChannels:
2878                 _force_channel = -1;
2879                 break;
2880         case ForceChannel:
2881                 _force_channel = mask;
2882                 mask = 0xFFFF; // Show all notes as active (below)
2883         };
2884
2885         // Update notes for selection
2886         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2887                 (*i)->on_channel_selection_change(mask);
2888         }
2889
2890         _last_channel_selection = mask;
2891
2892         _patch_changes.clear ();
2893         display_patch_changes ();
2894 }
2895
2896 void
2897 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2898 {
2899         _model_name         = model;
2900         _custom_device_mode = custom_device_mode;
2901         redisplay_model();
2902 }
2903
2904 void
2905 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2906 {
2907         if (_selection.empty()) {
2908                 return;
2909         }
2910
2911         PublicEditor& editor (trackview.editor());
2912
2913         switch (op) {
2914         case Cut:
2915         case Copy:
2916                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2917                 break;
2918         default:
2919                 break;
2920         }
2921
2922         if (op != Copy) {
2923
2924                 start_note_diff_command();
2925
2926                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2927                         switch (op) {
2928                         case Copy:
2929                                 break;
2930                         case Cut:
2931                         case Clear:
2932                                 note_diff_remove_note (*i);
2933                                 break;
2934                         }
2935                 }
2936
2937                 apply_diff();
2938         }
2939 }
2940
2941 MidiCutBuffer*
2942 MidiRegionView::selection_as_cut_buffer () const
2943 {
2944         Notes notes;
2945
2946         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2947                 NoteType* n = (*i)->note().get();
2948                 notes.insert (boost::shared_ptr<NoteType> (new NoteType (*n)));
2949         }
2950
2951         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2952         cb->set (notes);
2953
2954         return cb;
2955 }
2956
2957 /** This method handles undo */
2958 void
2959 MidiRegionView::paste (framepos_t pos, float times, const MidiCutBuffer& mcb)
2960 {
2961         if (mcb.empty()) {
2962                 return;
2963         }
2964
2965         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("MIDI paste @ %1 times %2\n", pos, times));
2966
2967         trackview.session()->begin_reversible_command (_("paste"));
2968
2969         start_note_diff_command (_("paste"));
2970
2971         Evoral::MusicalTime beat_delta;
2972         Evoral::MusicalTime paste_pos_beats;
2973         Evoral::MusicalTime duration;
2974         Evoral::MusicalTime end_point = 0;
2975
2976         duration = (*mcb.notes().rbegin())->end_time() - (*mcb.notes().begin())->time();
2977         paste_pos_beats = frames_to_beats (pos - _region->position());
2978         beat_delta = (*mcb.notes().begin())->time() - paste_pos_beats;
2979         paste_pos_beats = 0;
2980
2981         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste data spans from %1 to %2 (%3) ; paste pos beats = %4 (based on %5 - %6 ; beat delta = %7\n",
2982                                                        (*mcb.notes().begin())->time(),
2983                                                        (*mcb.notes().rbegin())->end_time(),
2984                                                        duration, pos, _region->position(),
2985                                                        paste_pos_beats, beat_delta));
2986
2987         clear_selection ();
2988
2989         for (int n = 0; n < (int) times; ++n) {
2990
2991                 for (Notes::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2992
2993                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2994                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2995
2996                         /* make all newly added notes selected */
2997
2998                         note_diff_add_note (copied_note, true);
2999                         end_point = copied_note->end_time();
3000                 }
3001
3002                 paste_pos_beats += duration;
3003         }
3004
3005         /* if we pasted past the current end of the region, extend the region */
3006
3007         framepos_t end_frame = _region->position() + beats_to_frames (end_point);
3008         framepos_t region_end = _region->position() + _region->length() - 1;
3009
3010         if (end_frame > region_end) {
3011
3012                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("Paste extended region from %1 to %2\n", region_end, end_frame));
3013
3014                 _region->clear_changes ();
3015                 _region->set_length (end_frame, this);
3016                 trackview.session()->add_command (new StatefulDiffCommand (_region));
3017         }
3018
3019         apply_diff (true);
3020
3021         trackview.session()->commit_reversible_command ();
3022 }
3023
3024 struct EventNoteTimeEarlyFirstComparator {
3025     bool operator() (CanvasNoteEvent* a, CanvasNoteEvent* b) {
3026             return a->note()->time() < b->note()->time();
3027     }
3028 };
3029
3030 void
3031 MidiRegionView::time_sort_events ()
3032 {
3033         if (!_sort_needed) {
3034                 return;
3035         }
3036
3037         EventNoteTimeEarlyFirstComparator cmp;
3038         _events.sort (cmp);
3039
3040         _sort_needed = false;
3041 }
3042
3043 void
3044 MidiRegionView::goto_next_note ()
3045 {
3046         // framepos_t pos = -1;
3047         bool use_next = false;
3048
3049         if (_events.back()->selected()) {
3050                 return;
3051         }
3052
3053         time_sort_events ();
3054
3055         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3056                 if ((*i)->selected()) {
3057                         use_next = true;
3058                         continue;
3059                 } else if (use_next) {
3060                         unique_select (*i);
3061                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
3062                         return;
3063                 }
3064         }
3065
3066         /* use the first one */
3067
3068         unique_select (_events.front());
3069
3070 }
3071
3072 void
3073 MidiRegionView::goto_previous_note ()
3074 {
3075         // framepos_t pos = -1;
3076         bool use_next = false;
3077
3078         if (_events.front()->selected()) {
3079                 return;
3080         }
3081
3082         time_sort_events ();
3083
3084         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
3085                 if ((*i)->selected()) {
3086                         use_next = true;
3087                         continue;
3088                 } else if (use_next) {
3089                         unique_select (*i);
3090                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
3091                         return;
3092                 }
3093         }
3094
3095         /* use the last one */
3096
3097         unique_select (*(_events.rbegin()));
3098 }
3099
3100 void
3101 MidiRegionView::selection_as_notelist (Notes& selected, bool allow_all_if_none_selected)
3102 {
3103         bool had_selected = false;
3104
3105         time_sort_events ();
3106
3107         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3108                 if ((*i)->selected()) {
3109                         selected.insert ((*i)->note());
3110                         had_selected = true;
3111                 }
3112         }
3113
3114         if (allow_all_if_none_selected && !had_selected) {
3115                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3116                         selected.insert ((*i)->note());
3117                 }
3118         }
3119 }
3120
3121 void
3122 MidiRegionView::update_ghost_note (double x, double y)
3123 {
3124         _last_ghost_x = x;
3125         _last_ghost_y = y;
3126
3127         _note_group->w2i (x, y);
3128         framepos_t f = trackview.editor().pixel_to_frame (x) + _region->position ();
3129         trackview.editor().snap_to (f);
3130         f -= _region->position ();
3131
3132         bool success;
3133         Evoral::MusicalTime beats = trackview.editor().get_grid_type_as_beats (success, f);
3134
3135         if (!success) {
3136                 beats = 1;
3137         }
3138
3139         double length = frames_to_beats (snap_frame_to_frame (f + beats_to_frames (beats)) - f);
3140
3141         _ghost_note->note()->set_time (frames_to_beats (f + _region->start()));
3142         _ghost_note->note()->set_length (length);
3143         _ghost_note->note()->set_note (midi_stream_view()->y_to_note (y));
3144
3145         /* the ghost note does not appear in ghost regions, so pass false in here */
3146         update_note (_ghost_note, false);
3147
3148         show_verbose_canvas_cursor (_ghost_note->note ());
3149 }
3150
3151 void
3152 MidiRegionView::create_ghost_note (double x, double y)
3153 {
3154         delete _ghost_note;
3155         _ghost_note = 0;
3156
3157         boost::shared_ptr<NoteType> g (new NoteType);
3158         _ghost_note = new NoEventCanvasNote (*this, *_note_group, g);
3159         update_ghost_note (x, y);
3160         _ghost_note->show ();
3161
3162         _last_ghost_x = x;
3163         _last_ghost_y = y;
3164
3165         show_verbose_canvas_cursor (_ghost_note->note ());
3166 }
3167
3168 void
3169 MidiRegionView::snap_changed ()
3170 {
3171         if (!_ghost_note) {
3172                 return;
3173         }
3174
3175         create_ghost_note (_last_ghost_x, _last_ghost_y);
3176 }
3177
3178 void
3179 MidiRegionView::show_verbose_canvas_cursor (boost::shared_ptr<NoteType> n) const
3180 {
3181         char buf[24];
3182         snprintf (buf, sizeof (buf), "%s (%d)\nVel %d",
3183                   Evoral::midi_note_name (n->note()).c_str(),
3184                   (int) n->note (),
3185                   (int) n->velocity());
3186         trackview.editor().show_verbose_canvas_cursor_with (buf, 10, 20);
3187 }
3188
3189 void
3190 MidiRegionView::drop_down_keys ()
3191 {
3192         _mouse_state = None;
3193 }
3194
3195 void
3196 MidiRegionView::maybe_select_by_position (GdkEventButton* ev, double /*x*/, double y)
3197 {
3198         double note = midi_stream_view()->y_to_note(y);
3199         Events e;
3200         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3201
3202         uint16_t chn_mask = mtv->channel_selector().get_selected_channels();
3203
3204         if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
3205                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchGreaterThanOrEqual, (uint8_t) floor (note), chn_mask);
3206         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
3207                 get_events (e, Evoral::Sequence<Evoral::MusicalTime>::PitchLessThanOrEqual, (uint8_t) floor (note), chn_mask);
3208         } else {
3209                 return;
3210         }
3211
3212         bool add_mrv_selection = false;
3213
3214         if (_selection.empty()) {
3215                 add_mrv_selection = true;
3216         }
3217
3218         for (Events::iterator i = e.begin(); i != e.end(); ++i) {
3219                 if (_selection.insert (*i).second) {
3220                         (*i)->set_selected (true);
3221                 }
3222         }
3223
3224         if (add_mrv_selection) {
3225                 PublicEditor& editor (trackview.editor());
3226                 editor.get_selection().add (this);
3227         }
3228 }
3229
3230 void
3231 MidiRegionView::color_handler ()
3232 {
3233         RegionView::color_handler ();
3234
3235         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
3236                 (*i)->set_selected ((*i)->selected()); // will change color
3237         }
3238
3239         /* XXX probably more to do here */
3240 }
3241
3242 void
3243 MidiRegionView::enable_display (bool yn)
3244 {
3245         RegionView::enable_display (yn);
3246         if (yn) {
3247                 redisplay_model ();
3248         }
3249 }
3250
3251 void
3252 MidiRegionView::show_step_edit_cursor (Evoral::MusicalTime pos)
3253 {
3254         if (_step_edit_cursor == 0) {
3255                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
3256
3257                 _step_edit_cursor = new ArdourCanvas::SimpleRect (*group);
3258                 _step_edit_cursor->property_y1() = 0;
3259                 _step_edit_cursor->property_y2() = midi_stream_view()->contents_height();
3260                 _step_edit_cursor->property_fill_color_rgba() = RGBA_TO_UINT (45,0,0,90);
3261                 _step_edit_cursor->property_outline_color_rgba() = RGBA_TO_UINT (85,0,0,90);
3262         }
3263
3264         move_step_edit_cursor (pos);
3265         _step_edit_cursor->show ();
3266 }
3267
3268 void
3269 MidiRegionView::move_step_edit_cursor (Evoral::MusicalTime pos)
3270 {
3271         _step_edit_cursor_position = pos;
3272
3273         if (_step_edit_cursor) {
3274                 double pixel = trackview.editor().frame_to_pixel (beats_to_frames (pos));
3275                 _step_edit_cursor->property_x1() = pixel;
3276                 set_step_edit_cursor_width (_step_edit_cursor_width);
3277         }
3278 }
3279
3280 void
3281 MidiRegionView::hide_step_edit_cursor ()
3282 {
3283         if (_step_edit_cursor) {
3284                 _step_edit_cursor->hide ();
3285         }
3286 }
3287
3288 void
3289 MidiRegionView::set_step_edit_cursor_width (Evoral::MusicalTime beats)
3290 {
3291         _step_edit_cursor_width = beats;
3292
3293         if (_step_edit_cursor) {
3294                 _step_edit_cursor->property_x2() = _step_edit_cursor->property_x1() + trackview.editor().frame_to_pixel (beats_to_frames (beats));
3295         }
3296 }
3297
3298 /** Called when a diskstream on our track has received some data.  Update the view, if applicable.
3299  *  @param buf Data that has been recorded.
3300  *  @param w Source that this data will end up in.
3301  */
3302 void
3303 MidiRegionView::data_recorded (boost::shared_ptr<MidiBuffer> buf, boost::weak_ptr<MidiSource> w)
3304 {
3305         if (!_active_notes) {
3306                 /* we aren't actively being recorded to */
3307                 return;
3308         }
3309
3310         boost::shared_ptr<MidiSource> src = w.lock ();
3311         if (!src || src != midi_region()->midi_source()) {
3312                 /* recorded data was not destined for our source */
3313                 return;
3314         }
3315
3316         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (&trackview);
3317         BeatsFramesConverter converter (trackview.session()->tempo_map(), mtv->midi_track()->get_capture_start_frame (0));
3318
3319         framepos_t back = max_framepos;
3320
3321         for (MidiBuffer::iterator i = buf->begin(); i != buf->end(); ++i) {
3322                 Evoral::MIDIEvent<MidiBuffer::TimeType> const ev (*i, false);
3323                 assert (ev.buffer ());
3324
3325                 Evoral::MusicalTime const time_beats = converter.from (ev.time () - converter.origin_b ());
3326
3327                 if (ev.type() == MIDI_CMD_NOTE_ON) {
3328
3329                         boost::shared_ptr<Evoral::Note<Evoral::MusicalTime> > note (
3330                                 new Evoral::Note<Evoral::MusicalTime> (ev.channel(), time_beats, 0, ev.note(), ev.velocity())
3331                                 );
3332
3333                         add_note (note, true);
3334
3335                         /* fix up our note range */
3336                         if (ev.note() < _current_range_min) {
3337                                 midi_stream_view()->apply_note_range (ev.note(), _current_range_max, true);
3338                         } else if (ev.note() > _current_range_max) {
3339                                 midi_stream_view()->apply_note_range (_current_range_min, ev.note(), true);
3340                         }
3341
3342                 } else if (ev.type() == MIDI_CMD_NOTE_OFF) {
3343                         resolve_note (ev.note (), time_beats);
3344                 }
3345
3346                 back = ev.time ();
3347         }
3348
3349         midi_stream_view()->check_record_layers (region(), back);
3350 }
3351
3352 void
3353 MidiRegionView::trim_front_starting ()
3354 {
3355         /* Reparent the note group to the region view's parent, so that it doesn't change
3356            when the region view is trimmed.
3357         */
3358         _temporary_note_group = new ArdourCanvas::Group (*group->property_parent ());
3359         _temporary_note_group->move (group->property_x(), group->property_y());
3360         _note_group->reparent (*_temporary_note_group);
3361 }
3362
3363 void
3364 MidiRegionView::trim_front_ending ()
3365 {
3366         _note_group->reparent (*group);
3367         delete _temporary_note_group;
3368         _temporary_note_group = 0;
3369
3370         if (_region->start() < 0) {
3371                 /* Trim drag made start time -ve; fix this */
3372                 midi_region()->fix_negative_start ();
3373         }
3374 }
3375
3376 /** @return channel (counted from 0) to add an event to, based on the current setting
3377  *  of the channel selector.
3378  */
3379 uint8_t
3380 MidiRegionView::get_channel_for_add () const
3381 {
3382         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
3383         uint16_t const chn_mask = mtv->channel_selector().get_selected_channels();
3384         int chn_cnt = 0;
3385         uint8_t channel = 0;
3386
3387         /* pick the highest selected channel, unless all channels are selected,
3388            which is interpreted to mean channel 1 (zero)
3389         */
3390
3391         for (uint16_t i = 0; i < 16; ++i) {
3392                 if (chn_mask & (1<<i)) {
3393                         channel = i;
3394                         chn_cnt++;
3395                 }
3396         }
3397
3398         if (chn_cnt == 16) {
3399                 channel = 0;
3400         }
3401
3402         return channel;
3403 }
3404
3405 void
3406 MidiRegionView::edit_patch_change (ArdourCanvas::CanvasPatchChange* pc)
3407 {
3408         PatchChangeDialog d (&_time_converter, trackview.session(), *pc->patch (), Gtk::Stock::APPLY);
3409         if (d.run () != Gtk::RESPONSE_ACCEPT) {
3410                 return;
3411         }
3412
3413         change_patch_change (pc->patch(), d.patch ());
3414 }