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
  33 #include "ardour/playlist.h"
  34 #include "ardour/tempo.h"
  35 #include "ardour/midi_region.h"
  36 #include "ardour/midi_source.h"
  37 #include "ardour/midi_diskstream.h"
  38 #include "ardour/midi_model.h"
  39 #include "ardour/midi_patch_manager.h"
  40
  41 #include "evoral/Parameter.hpp"
  42 #include "evoral/Control.hpp"
  43
  44 #include "automation_region_view.h"
  45 #include "automation_time_axis.h"
  46 #include "canvas-hit.h"
  47 #include "canvas-note.h"
  48 #include "canvas-program-change.h"
  49 #include "ghostregion.h"
  50 #include "gui_thread.h"
  51 #include "keyboard.h"
  52 #include "midi_cut_buffer.h"
  53 #include "midi_list_editor.h"
  54 #include "midi_region_view.h"
  55 #include "midi_streamview.h"
  56 #include "midi_time_axis.h"
  57 #include "midi_time_axis.h"
  58 #include "midi_util.h"
  59 #include "public_editor.h"
  60 #include "selection.h"
  61 #include "simpleline.h"
  62 #include "streamview.h"
  63 #include "utils.h"
  64
  65 #include "i18n.h"
  66
  67 using namespace sigc;
  68 using namespace ARDOUR;
  69 using namespace PBD;
  70 using namespace Editing;
  71 using namespace ArdourCanvas;
  72
  73 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  74                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color const & basic_color)
  75         : RegionView (parent, tv, r, spu, basic_color)
  76         , _force_channel(-1)
  77         , _last_channel_selection(0xFFFF)
  78         , _default_note_length(1.0)
  79         , _current_range_min(0)
  80         , _current_range_max(0)
  81         , _model_name(string())
  82         , _custom_device_mode(string())
  83         , _active_notes(0)
  84         , _note_group(new ArdourCanvas::Group(*parent))
  85         , _delta_command(NULL)
  86         , _mouse_state(None)
  87         , _pressed_button(0)
  88 {
  89         _note_group->raise_to_top();
  90 }
  91
  92 MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv,
  93                 boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color,
  94                 TimeAxisViewItem::Visibility visibility)
  95         : RegionView (parent, tv, r, spu, basic_color, false, visibility)
  96         , _force_channel(-1)
  97         , _last_channel_selection(0xFFFF)
  98         , _default_note_length(1.0)
  99         , _model_name(string())
 100         , _custom_device_mode(string())
 101         , _active_notes(0)
 102         , _note_group(new ArdourCanvas::Group(*parent))
 103         , _delta_command(NULL)
 104         , _mouse_state(None)
 105         , _pressed_button(0)
 106
 107 {
 108         _note_group->raise_to_top();
 109 }
 110
 111
 112 MidiRegionView::MidiRegionView (const MidiRegionView& other)
 113         : sigc::trackable(other)
 114         , RegionView (other)
 115         , _force_channel(-1)
 116         , _last_channel_selection(0xFFFF)
 117         , _default_note_length(1.0)
 118         , _model_name(string())
 119         , _custom_device_mode(string())
 120         , _active_notes(0)
 121         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 122         , _delta_command(NULL)
 123         , _mouse_state(None)
 124         , _pressed_button(0)
 125 {
 126         Gdk::Color c;
 127         int r,g,b,a;
 128
 129         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 130         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 131
 132         init (c, false);
 133 }
 134
 135 MidiRegionView::MidiRegionView (const MidiRegionView& other, boost::shared_ptr<MidiRegion> region)
 136         : RegionView (other, boost::shared_ptr<Region> (region))
 137         , _force_channel(-1)
 138         , _last_channel_selection(0xFFFF)
 139         , _default_note_length(1.0)
 140         , _model_name(string())
 141         , _custom_device_mode(string())
 142         , _active_notes(0)
 143         , _note_group(new ArdourCanvas::Group(*get_canvas_group()))
 144         , _delta_command(NULL)
 145         , _mouse_state(None)
 146         , _pressed_button(0)
 147 {
 148         Gdk::Color c;
 149         int r,g,b,a;
 150
 151         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 152         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 153
 154         init (c, true);
 155 }
 156
 157 void
 158 MidiRegionView::init (Gdk::Color const & basic_color, bool wfd)
 159 {
 160         if (wfd) {
 161                 midi_region()->midi_source(0)->load_model();
 162         }
 163
 164         _model = midi_region()->midi_source(0)->model();
 165         _enable_display = false;
 166
 167         RegionView::init (basic_color, false);
 168
 169         compute_colors (basic_color);
 170
 171         set_height (trackview.current_height());
 172
 173         region_muted ();
 174         region_sync_changed ();
 175         region_resized (BoundsChanged);
 176         region_locked ();
 177
 178         reset_width_dependent_items (_pixel_width);
 179
 180         set_colors ();
 181
 182         _enable_display = true;
 183         if (_model) {
 184                 if (wfd) {
 185                         display_model (_model);
 186                 }
 187         }
 188
 189         group->raise_to_top();
 190         group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
 191
 192         midi_view()->signal_channel_mode_changed().connect(
 193                         mem_fun(this, &MidiRegionView::midi_channel_mode_changed));
 194
 195         midi_view()->signal_midi_patch_settings_changed().connect(
 196                         mem_fun(this, &MidiRegionView::midi_patch_settings_changed));
 197 }
 198
 199 bool
 200 MidiRegionView::canvas_event(GdkEvent* ev)
 201 {
 202         PublicEditor& editor (trackview.editor());
 203
 204         if (!editor.internal_editing()) {
 205                 return false;
 206         }
 207
 208         static double drag_start_x, drag_start_y;
 209         static double last_x, last_y;
 210         double event_x, event_y;
 211         nframes64_t event_frame = 0;
 212         bool fine;
 213
 214         static ArdourCanvas::SimpleRect* drag_rect = NULL;
 215
 216         /* XXX: note that as of August 2009, the GnomeCanvas does not propagate scroll events
 217            to its items, which means that ev->type == GDK_SCROLL will never be seen
 218         */
 219
 220         switch (ev->type) {
 221         case GDK_SCROLL:
 222                 fine = Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier);
 223
 224                 if (ev->scroll.direction == GDK_SCROLL_UP) {
 225                         change_velocities (true, fine, false);
 226                         return true;
 227                 } else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
 228                         change_velocities (false, fine, false);
 229                         return true;
 230                 } else {
 231                         return false;
 232                 }
 233                 break;
 234
 235         case GDK_KEY_PRESS:
 236
 237                 /* since GTK bindings are generally activated on press, and since
 238                    detectable auto-repeat is the name of the game and only sends
 239                    repeated presses, carry out key actions at key press, not release.
 240                 */
 241
 242                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R){
 243                         _mouse_state = SelectTouchDragging;
 244                         return true;
 245
 246                 } else if (ev->key.keyval == GDK_Escape) {
 247                         clear_selection();
 248                         _mouse_state = None;
 249
 250                 } else if (ev->key.keyval == GDK_comma || ev->key.keyval == GDK_period) {
 251
 252                         bool start = (ev->key.keyval == GDK_comma);
 253                         bool end = (ev->key.keyval == GDK_period);
 254                         bool shorter = Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier);
 255                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 256
 257                         change_note_lengths (fine, shorter, start, end);
 258
 259                         return true;
 260
 261                 } else if (ev->key.keyval == GDK_Delete) {
 262
 263                         delete_selection();
 264                         return true;
 265
 266                 } else if (ev->key.keyval == GDK_Tab) {
 267
 268                         if (Keyboard::modifier_state_equals (ev->key.state, Keyboard::PrimaryModifier)) {
 269                                 goto_previous_note ();
 270                         } else {
 271                                 goto_next_note ();
 272                         }
 273                         return true;
 274
 275                 } else if (ev->key.keyval == GDK_Up) {
 276
 277                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 278                         bool fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 279
 280                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 281                                 change_velocities (true, fine, allow_smush);
 282                         } else {
 283                                 transpose (true, fine, allow_smush);
 284                         }
 285                         return true;
 286
 287                 } else if (ev->key.keyval == GDK_Down) {
 288
 289                         bool allow_smush = Keyboard::modifier_state_contains (ev->key.state, Keyboard::SecondaryModifier);
 290                         fine = Keyboard::modifier_state_contains (ev->key.state, Keyboard::TertiaryModifier);
 291
 292                         if (Keyboard::modifier_state_contains (ev->key.state, Keyboard::PrimaryModifier)) {
 293                                 change_velocities (false, fine, allow_smush);
 294                         } else {
 295                                 transpose (false, fine, allow_smush);
 296                         }
 297                         return true;
 298
 299                 } else if (ev->key.keyval == GDK_Left) {
 300
 301                         nudge_notes (false);
 302                         return true;
 303
 304                 } else if (ev->key.keyval == GDK_Right) {
 305
 306                         nudge_notes (true);
 307                         return true;
 308
 309                 } else if (ev->key.keyval == GDK_Control_L) {
 310                         return true;
 311
 312                 }
 313                 return false;
 314
 315         case GDK_KEY_RELEASE:
 316                 if (ev->key.keyval == GDK_Alt_L || ev->key.keyval == GDK_Alt_R) {
 317                         _mouse_state = None;
 318                         return true;
 319                 }
 320                 return false;
 321
 322         case GDK_BUTTON_PRESS:
 323                 if (_mouse_state != SelectTouchDragging && ev->button.button == 1) {
 324                         _pressed_button = ev->button.button;
 325                         _mouse_state = Pressed;
 326                         return true;
 327                 }
 328                 _pressed_button = ev->button.button;
 329                 return true;
 330
 331         case GDK_2BUTTON_PRESS:
 332                 return true;
 333
 334         case GDK_ENTER_NOTIFY:
 335                 /* FIXME: do this on switch to note tool, too, if the pointer is already in */
 336                 Keyboard::magic_widget_grab_focus();
 337                 group->grab_focus();
 338                 break;
 339
 340         case GDK_MOTION_NOTIFY:
 341                 event_x = ev->motion.x;
 342                 event_y = ev->motion.y;
 343                 group->w2i(event_x, event_y);
 344
 345                 // convert event_x to global frame
 346                 event_frame = trackview.editor().pixel_to_frame(event_x) + _region->position();
 347                 trackview.editor().snap_to(event_frame);
 348                 // convert event_frame back to local coordinates relative to position
 349                 event_frame -= _region->position();
 350
 351                 switch (_mouse_state) {
 352                 case Pressed: // Drag start
 353
 354                         // Select drag start
 355                         if (_pressed_button == 1 && editor.current_mouse_mode() == MouseObject) {
 356                                 cerr << "MRV start select grab\n";
 357                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 358                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 359                                 last_x = event_x;
 360                                 last_y = event_y;
 361                                 drag_start_x = event_x;
 362                                 drag_start_y = event_y;
 363
 364                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 365                                 drag_rect->property_x1() = event_x;
 366                                 drag_rect->property_y1() = event_y;
 367                                 drag_rect->property_x2() = event_x;
 368                                 drag_rect->property_y2() = event_y;
 369                                 drag_rect->property_outline_what() = 0xFF;
 370                                 drag_rect->property_outline_color_rgba()
 371                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
 372                                 drag_rect->property_fill_color_rgba()
 373                                         = ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
 374
 375                                 _mouse_state = SelectRectDragging;
 376                                 return true;
 377
 378                         // Add note drag start
 379                         } else if (editor.current_mouse_mode() == MouseRange) {
 380                                 cerr << "MRV start note grab\n";
 381                                 group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 382                                                 Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
 383                                 last_x = event_x;
 384                                 last_y = event_y;
 385                                 drag_start_x = event_x;
 386                                 drag_start_y = event_y;
 387
 388                                 drag_rect = new ArdourCanvas::SimpleRect(*group);
 389                                 drag_rect->property_x1() = trackview.editor().frame_to_pixel(event_frame);
 390
 391                                 drag_rect->property_y1() = midi_stream_view()->note_to_y(
 392                                                 midi_stream_view()->y_to_note(event_y));
 393                                 drag_rect->property_x2() = event_x;
 394                                 drag_rect->property_y2() = drag_rect->property_y1()
 395                                                          + floor(midi_stream_view()->note_height());
 396                                 drag_rect->property_outline_what() = 0xFF;
 397                                 drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
 398                                 drag_rect->property_fill_color_rgba()    = 0xFFFFFF66;
 399
 400                                 _mouse_state = AddDragging;
 401                                 return true;
 402                         }
 403
 404                         return false;
 405
 406                 case SelectRectDragging: // Select drag motion
 407                 case AddDragging: // Add note drag motion
 408                         if (ev->motion.is_hint) {
 409                                 int t_x;
 410                                 int t_y;
 411                                 GdkModifierType state;
 412                                 gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
 413                                 event_x = t_x;
 414                                 event_y = t_y;
 415                         }
 416
 417                         if (_mouse_state == AddDragging)
 418                                 event_x = trackview.editor().frame_to_pixel(event_frame);
 419
 420                         if (drag_rect) {
 421                                 if (event_x > drag_start_x)
 422                                         drag_rect->property_x2() = event_x;
 423                                 else
 424                                         drag_rect->property_x1() = event_x;
 425                         }
 426
 427                         if (drag_rect && _mouse_state == SelectRectDragging) {
 428                                 if (event_y > drag_start_y)
 429                                         drag_rect->property_y2() = event_y;
 430                                 else
 431                                         drag_rect->property_y1() = event_y;
 432
 433                                 update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
 434                         }
 435
 436                         last_x = event_x;
 437                         last_y = event_y;
 438
 439                 case SelectTouchDragging:
 440                         return false;
 441
 442                 default:
 443                         break;
 444                 }
 445                 break;
 446
 447         case GDK_BUTTON_RELEASE:
 448                 event_x = ev->motion.x;
 449                 event_y = ev->motion.y;
 450                 group->w2i(event_x, event_y);
 451                 group->ungrab(ev->button.time);
 452                 event_frame = trackview.editor().pixel_to_frame(event_x);
 453
 454                 if (ev->button.button == 3) {
 455                         return false;
 456                 } else if (_pressed_button != 1) {
 457                         return false;
 458                 }
 459
 460                 switch (_mouse_state) {
 461                 case Pressed: // Clicked
 462                         switch (editor.current_mouse_mode()) {
 463                         case MouseObject:
 464                         case MouseTimeFX:
 465                                 clear_selection();
 466                                 break;
 467                         case MouseRange:
 468                                 create_note_at(event_x, event_y, _default_note_length);
 469                                 break;
 470                         default:
 471                                 break;
 472                         }
 473                         _mouse_state = None;
 474                         break;
 475                 case SelectRectDragging: // Select drag done
 476                         _mouse_state = None;
 477                         delete drag_rect;
 478                         drag_rect = NULL;
 479                         break;
 480                 case AddDragging: // Add drag done
 481                         _mouse_state = None;
 482                         if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
 483                                 const double x      = drag_rect->property_x1();
 484                                 const double length = trackview.editor().pixel_to_frame(
 485                                                         drag_rect->property_x2() - drag_rect->property_x1());
 486
 487                                 create_note_at(x, drag_rect->property_y1(), frames_to_beats(length));
 488                         }
 489
 490                         delete drag_rect;
 491                         drag_rect = NULL;
 492                 default: break;
 493                 }
 494
 495         default: break;
 496         }
 497
 498         return false;
 499 }
 500
 501 void
 502 MidiRegionView::show_list_editor ()
 503 {
 504         MidiListEditor* mle = new MidiListEditor (trackview.session(), midi_region());
 505         mle->show ();
 506 }
 507
 508 /** Add a note to the model, and the view, at a canvas (click) coordinate.
 509  * \param x horizontal position in pixels
 510  * \param y vertical position in pixels
 511  * \param length duration of the note in beats */
 512 void
 513 MidiRegionView::create_note_at(double x, double y, double length)
 514 {
 515         MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
 516         MidiStreamView* const view = mtv->midi_view();
 517
 518         double note = midi_stream_view()->y_to_note(y);
 519
 520         assert(note >= 0.0);
 521         assert(note <= 127.0);
 522
 523         // Start of note in frames relative to region start
 524         nframes64_t start_frames = snap_frame_to_frame(trackview.editor().pixel_to_frame(x));
 525         assert(start_frames >= 0);
 526
 527         // Snap length
 528         length = frames_to_beats(
 529                         snap_frame_to_frame(start_frames + beats_to_frames(length)) - start_frames);
 530
 531         const boost::shared_ptr<NoteType> new_note(new NoteType(0,
 532                         frames_to_beats(start_frames + _region->start()), length,
 533                         (uint8_t)note, 0x40));
 534
 535         view->update_note_range(new_note->note());
 536
 537         MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
 538         cmd->add(new_note);
 539         _model->apply_command(trackview.session(), cmd);
 540
 541         play_midi_note (new_note);
 542 }
 543
 544 void
 545 MidiRegionView::clear_events()
 546 {
 547         clear_selection();
 548
 549         MidiGhostRegion* gr;
 550         for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 551                 if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
 552                         gr->clear_events();
 553                 }
 554         }
 555
 556         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 557                 delete *i;
 558         }
 559
 560         _events.clear();
 561         _pgm_changes.clear();
 562         _sys_exes.clear();
 563 }
 564
 565
 566 void
 567 MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
 568 {
 569         _model = model;
 570         content_connection.disconnect ();
 571         content_connection = _model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
 572
 573         if (_enable_display) {
 574                 redisplay_model();
 575         }
 576 }
 577
 578
 579 void
 580 MidiRegionView::start_delta_command(string name)
 581 {
 582         if (!_delta_command) {
 583                 _delta_command = _model->new_delta_command(name);
 584         }
 585 }
 586
 587 void
 588 MidiRegionView::start_diff_command(string name)
 589 {
 590         if (!_diff_command) {
 591                 _diff_command = _model->new_diff_command(name);
 592         }
 593 }
 594
 595 void
 596 MidiRegionView::delta_add_note(const boost::shared_ptr<NoteType> note, bool selected, bool show_velocity)
 597 {
 598         if (_delta_command) {
 599                 _delta_command->add(note);
 600         }
 601         if (selected) {
 602                 _marked_for_selection.insert(note);
 603         }
 604         if (show_velocity) {
 605                 _marked_for_velocity.insert(note);
 606         }
 607 }
 608
 609 void
 610 MidiRegionView::delta_remove_note(ArdourCanvas::CanvasNoteEvent* ev)
 611 {
 612         if (_delta_command && ev->note()) {
 613                 _delta_command->remove(ev->note());
 614         }
 615 }
 616
 617 void
 618 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 619                                  MidiModel::DiffCommand::Property property,
 620                                  uint8_t val)
 621 {
 622         if (_diff_command) {
 623                 _diff_command->change (ev->note(), property, val);
 624         }
 625 }
 626
 627 void
 628 MidiRegionView::diff_add_change (ArdourCanvas::CanvasNoteEvent* ev,
 629                                  MidiModel::DiffCommand::Property property,
 630                                  Evoral::MusicalTime val)
 631 {
 632         if (_diff_command) {
 633                 _diff_command->change (ev->note(), property, val);
 634         }
 635 }
 636
 637 void
 638 MidiRegionView::apply_delta()
 639 {
 640         if (!_delta_command) {
 641                 return;
 642         }
 643
 644         // Mark all selected notes for selection when model reloads
 645         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 646                 _marked_for_selection.insert((*i)->note());
 647         }
 648
 649         _model->apply_command(trackview.session(), _delta_command);
 650         _delta_command = NULL;
 651         midi_view()->midi_track()->diskstream()->playlist_modified();
 652
 653         _marked_for_selection.clear();
 654         _marked_for_velocity.clear();
 655 }
 656
 657 void
 658 MidiRegionView::apply_diff ()
 659 {
 660         if (!_diff_command) {
 661                 return;
 662         }
 663
 664         // Mark all selected notes for selection when model reloads
 665         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 666                 _marked_for_selection.insert((*i)->note());
 667         }
 668
 669         _model->apply_command(trackview.session(), _diff_command);
 670         _diff_command = NULL;
 671         midi_view()->midi_track()->diskstream()->playlist_modified();
 672
 673         _marked_for_selection.clear();
 674         _marked_for_velocity.clear();
 675 }
 676
 677 void
 678 MidiRegionView::apply_delta_as_subcommand()
 679 {
 680         if (!_delta_command) {
 681                 return;
 682         }
 683
 684         // Mark all selected notes for selection when model reloads
 685         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 686                 _marked_for_selection.insert((*i)->note());
 687         }
 688
 689         _model->apply_command_as_subcommand(trackview.session(), _delta_command);
 690         _delta_command = NULL;
 691         midi_view()->midi_track()->diskstream()->playlist_modified();
 692
 693         _marked_for_selection.clear();
 694         _marked_for_velocity.clear();
 695 }
 696
 697 void
 698 MidiRegionView::apply_diff_as_subcommand()
 699 {
 700         if (!_diff_command) {
 701                 return;
 702         }
 703
 704         // Mark all selected notes for selection when model reloads
 705         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 706                 _marked_for_selection.insert((*i)->note());
 707         }
 708
 709         _model->apply_command_as_subcommand(trackview.session(), _diff_command);
 710         _diff_command = NULL;
 711         midi_view()->midi_track()->diskstream()->playlist_modified();
 712
 713         _marked_for_selection.clear();
 714         _marked_for_velocity.clear();
 715 }
 716
 717 void
 718 MidiRegionView::abort_command()
 719 {
 720         delete _delta_command;
 721         _delta_command = 0;
 722         delete _diff_command;
 723         _diff_command = 0;
 724         clear_selection();
 725 }
 726
 727 void
 728 MidiRegionView::redisplay_model()
 729 {
 730         // Don't redisplay the model if we're currently recording and displaying that
 731         if (_active_notes) {
 732                 return;
 733         }
 734
 735         if (_model) {
 736
 737                 // Mark all selected notes for selection when model reloads
 738                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
 739                         _marked_for_selection.insert((*i)->note());
 740                 }
 741
 742
 743                 clear_events();
 744                 _model->read_lock();
 745
 746                 MidiModel::Notes notes = _model->notes();
 747
 748                 for (size_t i = 0; i < _model->n_notes(); ++i) {
 749                         boost::shared_ptr<NoteType> note (_model->note_at (i));
 750                         if (note_in_visible_range (note)) {
 751                                 add_note (note);
 752                         }
 753                 }
 754
 755                 display_sysexes();
 756                 display_program_changes();
 757
 758                 _model->read_unlock();
 759
 760         } else {
 761                 cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
 762         }
 763 }
 764
 765 void
 766 MidiRegionView::display_program_changes()
 767 {
 768         boost::shared_ptr<Evoral::Control> control = _model->control(MidiPgmChangeAutomation);
 769         if (!control) {
 770                 return;
 771         }
 772
 773         Glib::Mutex::Lock lock (control->list()->lock());
 774
 775         uint8_t channel = control->parameter().channel();
 776
 777         for (AutomationList::const_iterator event = control->list()->begin();
 778                         event != control->list()->end(); ++event) {
 779                 double event_time     = (*event)->when;
 780                 double program_number = floor((*event)->value + 0.5);
 781
 782                 // Get current value of bank select MSB at time of the program change
 783                 Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
 784                 boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
 785                 uint8_t msb = 0;
 786                 if (msb_control != 0) {
 787                         msb = uint8_t(floor(msb_control->get_float(true, event_time) + 0.5));
 788                 }
 789
 790                 // Get current value of bank select LSB at time of the program change
 791                 Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
 792                 boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
 793                 uint8_t lsb = 0;
 794                 if (lsb_control != 0) {
 795                         lsb = uint8_t(floor(lsb_control->get_float(true, event_time) + 0.5));
 796                 }
 797
 798                 MIDI::Name::PatchPrimaryKey patch_key(msb, lsb, program_number);
 799
 800                 boost::shared_ptr<MIDI::Name::Patch> patch =
 801                         MIDI::Name::MidiPatchManager::instance().find_patch(
 802                                         _model_name, _custom_device_mode, channel, patch_key);
 803
 804                 PCEvent program_change(event_time, uint8_t(program_number), channel);
 805
 806                 if (patch != 0) {
 807                         add_pgm_change(program_change, patch->name());
 808                 } else {
 809                         char buf[4];
 810                         snprintf(buf, 4, "%d", int(program_number));
 811                         add_pgm_change(program_change, buf);
 812                 }
 813         }
 814 }
 815
 816 void
 817 MidiRegionView::display_sysexes()
 818 {
 819         for (MidiModel::SysExes::const_iterator i = _model->sysexes().begin(); i != _model->sysexes().end(); ++i) {
 820                 Evoral::MusicalTime time = (*i)->time();
 821                 assert(time >= 0);
 822
 823                 ostringstream str;
 824                 str << hex;
 825                 for (uint32_t b = 0; b < (*i)->size(); ++b) {
 826                         str << int((*i)->buffer()[b]);
 827                         if (b != (*i)->size() -1) {
 828                                 str << " ";
 829                         }
 830                 }
 831                 string text = str.str();
 832
 833                 ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
 834
 835                 const double x = trackview.editor().frame_to_pixel(beats_to_frames(time));
 836
 837                 double height = midi_stream_view()->contents_height();
 838
 839                 boost::shared_ptr<CanvasSysEx> sysex = boost::shared_ptr<CanvasSysEx>(
 840                                 new CanvasSysEx(*this, *group, text, height, x, 1.0));
 841
 842                 // Show unless program change is beyond the region bounds
 843                 if (time - _region->start() >= _region->length() || time < _region->start()) {
 844                         sysex->hide();
 845                 } else {
 846                         sysex->show();
 847                 }
 848
 849                 _sys_exes.push_back(sysex);
 850         }
 851 }
 852
 853
 854 MidiRegionView::~MidiRegionView ()
 855 {
 856         in_destructor = true;
 857
 858         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 859
 860         if (_active_notes) {
 861                 end_write();
 862         }
 863
 864         _selection.clear();
 865         clear_events();
 866         delete _note_group;
 867         delete _delta_command;
 868 }
 869
 870 void
 871 MidiRegionView::region_resized (Change what_changed)
 872 {
 873         RegionView::region_resized(what_changed);
 874
 875         if (what_changed & ARDOUR::PositionChanged) {
 876                 set_duration(_region->length(), 0);
 877                 if (_enable_display) {
 878                         redisplay_model();
 879                 }
 880         }
 881 }
 882
 883 void
 884 MidiRegionView::reset_width_dependent_items (double pixel_width)
 885 {
 886         RegionView::reset_width_dependent_items(pixel_width);
 887         assert(_pixel_width == pixel_width);
 888
 889         if (_enable_display) {
 890                 redisplay_model();
 891         }
 892 }
 893
 894 void
 895 MidiRegionView::set_height (double height)
 896 {
 897         static const double FUDGE = 2.0;
 898         const double old_height = _height;
 899         RegionView::set_height(height);
 900         _height = height - FUDGE;
 901
 902         apply_note_range(midi_stream_view()->lowest_note(),
 903                          midi_stream_view()->highest_note(),
 904                          height != old_height + FUDGE);
 905
 906         if (name_pixbuf) {
 907                 name_pixbuf->raise_to_top();
 908         }
 909 }
 910
 911
 912 /** Apply the current note range from the stream view
 913  * by repositioning/hiding notes as necessary
 914  */
 915 void
 916 MidiRegionView::apply_note_range (uint8_t min, uint8_t max, bool force)
 917 {
 918         if (!_enable_display) {
 919                 return;
 920         }
 921
 922         if (!force && _current_range_min == min && _current_range_max == max) {
 923                 return;
 924         }
 925
 926         _current_range_min = min;
 927         _current_range_max = max;
 928
 929         for (Events::const_iterator i = _events.begin(); i != _events.end(); ++i) {
 930                 CanvasNoteEvent* event = *i;
 931                 Item* item = dynamic_cast<Item*>(event);
 932                 assert(item);
 933                 if (event && event->note()) {
 934                         if (event->note()->note() < _current_range_min
 935                                         || event->note()->note() > _current_range_max) {
 936                                 if (canvas_item_visible(item)) {
 937                                         item->hide();
 938                                 }
 939                         } else {
 940                                 if (!canvas_item_visible(item)) {
 941                                         item->show();
 942                                 }
 943
 944                                 if (CanvasNote* note = dynamic_cast<CanvasNote*>(event)) {
 945                                         const double y1 = midi_stream_view()->note_to_y(event->note()->note());
 946                                         const double y2 = y1 + floor(midi_stream_view()->note_height());
 947
 948                                         note->property_y1() = y1;
 949                                         note->property_y2() = y2;
 950                                 } else if (CanvasHit* hit = dynamic_cast<CanvasHit*>(event)) {
 951                                         double x = trackview.editor().frame_to_pixel(
 952                                                         beats_to_frames(event->note()->time()) - _region->start());
 953                                         const double diamond_size = midi_stream_view()->note_height() / 2.0;
 954                                         double y = midi_stream_view()->note_to_y(event->note()->note())
 955                                                          + ((diamond_size-2.0) / 4.0);
 956
 957                                         hit->set_height(diamond_size);
 958                                         hit->move(x-hit->x1(), y-hit->y1());
 959                                         hit->show();
 960                                 }
 961                         }
 962                 }
 963         }
 964
 965 }
 966
 967 GhostRegion*
 968 MidiRegionView::add_ghost (TimeAxisView& tv)
 969 {
 970         CanvasNote* note;
 971
 972         double unit_position = _region->position () / samples_per_unit;
 973         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
 974         MidiGhostRegion* ghost;
 975
 976         if (mtv && mtv->midi_view()) {
 977                 /* if ghost is inserted into midi track, use a dedicated midi ghost canvas group
 978                    to allow having midi notes on top of note lines and waveforms.
 979                  */
 980                 ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
 981         } else {
 982                 ghost = new MidiGhostRegion (tv, trackview, unit_position);
 983         }
 984
 985         ghost->set_height ();
 986         ghost->set_duration (_region->length() / samples_per_unit);
 987         ghosts.push_back (ghost);
 988
 989         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
 990                 if ((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
 991                         ghost->add_note(note);
 992                 }
 993         }
 994
 995         ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
 996
 997         return ghost;
 998 }
 999
1000
1001 /** Begin tracking note state for successive calls to add_event
1002  */
1003 void
1004 MidiRegionView::begin_write()
1005 {
1006         assert(!_active_notes);
1007         _active_notes = new CanvasNote*[128];
1008         for (unsigned i=0; i < 128; ++i) {
1009                 _active_notes[i] = NULL;
1010         }
1011 }
1012
1013
1014 /** Destroy note state for add_event
1015  */
1016 void
1017 MidiRegionView::end_write()
1018 {
1019         delete[] _active_notes;
1020         _active_notes = NULL;
1021         _marked_for_selection.clear();
1022         _marked_for_velocity.clear();
1023 }
1024
1025
1026 /** Resolve an active MIDI note (while recording).
1027  */
1028 void
1029 MidiRegionView::resolve_note(uint8_t note, double end_time)
1030 {
1031         if (midi_view()->note_mode() != Sustained) {
1032                 return;
1033         }
1034
1035         if (_active_notes && _active_notes[note]) {
1036                 const nframes64_t end_time_frames = beats_to_frames(end_time);
1037                 _active_notes[note]->property_x2() = trackview.editor().frame_to_pixel(end_time_frames);
1038                 _active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
1039                 _active_notes[note] = NULL;
1040         }
1041 }
1042
1043
1044 /** Extend active notes to rightmost edge of region (if length is changed)
1045  */
1046 void
1047 MidiRegionView::extend_active_notes()
1048 {
1049         if (!_active_notes) {
1050                 return;
1051         }
1052
1053         for (unsigned i=0; i < 128; ++i) {
1054                 if (_active_notes[i]) {
1055                         _active_notes[i]->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1056                 }
1057         }
1058 }
1059
1060 void
1061 MidiRegionView::play_midi_note(boost::shared_ptr<NoteType> note)
1062 {
1063         if (!trackview.editor().sound_notes()) {
1064                 return;
1065         }
1066
1067         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1068         assert(route_ui);
1069
1070         route_ui->midi_track()->write_immediate_event(
1071                         note->on_event().size(), note->on_event().buffer());
1072
1073         const double note_length_beats = (note->off_event().time() - note->on_event().time());
1074         nframes_t note_length_ms = beats_to_frames(note_length_beats)
1075                         * (1000 / (double)route_ui->session().nominal_frame_rate());
1076         Glib::signal_timeout().connect(bind(mem_fun(this, &MidiRegionView::play_midi_note_off), note),
1077                         note_length_ms, G_PRIORITY_DEFAULT);
1078 }
1079
1080 bool
1081 MidiRegionView::play_midi_note_off(boost::shared_ptr<NoteType> note)
1082 {
1083         RouteUI* route_ui = dynamic_cast<RouteUI*> (&trackview);
1084         assert(route_ui);
1085
1086         route_ui->midi_track()->write_immediate_event(
1087                         note->off_event().size(), note->off_event().buffer());
1088
1089         return false;
1090 }
1091
1092 bool
1093 MidiRegionView::note_in_visible_range(const boost::shared_ptr<NoteType> note) const
1094 {
1095         const nframes64_t note_start_frames = beats_to_frames(note->time());
1096         bool outside = (note_start_frames - _region->start() >= _region->length())
1097                         || (note_start_frames < _region->start())
1098                         || (note->note() < midi_stream_view()->lowest_note())
1099                         || (note->note() > midi_stream_view()->highest_note());
1100         return !outside;
1101 }
1102
1103 /** Add a MIDI note to the view (with length).
1104  *
1105  * If in sustained mode, notes with length 0 will be considered active
1106  * notes, and resolve_note should be called when the corresponding note off
1107  * event arrives, to properly display the note.
1108  */
1109 void
1110 MidiRegionView::add_note(const boost::shared_ptr<NoteType> note)
1111 {
1112         assert(note->time() >= 0);
1113         assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
1114
1115         const nframes64_t note_start_frames = beats_to_frames(note->time());
1116         const nframes64_t note_end_frames   = beats_to_frames(note->end_time());
1117
1118         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1119
1120         CanvasNoteEvent* event = 0;
1121
1122         const double x = trackview.editor().frame_to_pixel(note_start_frames - _region->start());
1123
1124         if (midi_view()->note_mode() == Sustained) {
1125                 const double y1 = midi_stream_view()->note_to_y(note->note());
1126                 const double note_endpixel =
1127                         trackview.editor().frame_to_pixel(note_end_frames - _region->start());
1128
1129                 CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
1130                 ev_rect->property_x1() = x;
1131                 ev_rect->property_y1() = y1;
1132                 if (note->length() > 0) {
1133                         ev_rect->property_x2() = note_endpixel;
1134                 } else {
1135                         ev_rect->property_x2() = trackview.editor().frame_to_pixel(_region->length());
1136                 }
1137                 ev_rect->property_y2() = y1 + floor(midi_stream_view()->note_height());
1138
1139                 if (note->length() == 0) {
1140                         if (_active_notes) {
1141                                 assert(note->note() < 128);
1142                                 // If this note is already active there's a stuck note,
1143                                 // finish the old note rectangle
1144                                 if (_active_notes[note->note()]) {
1145                                         CanvasNote* const old_rect = _active_notes[note->note()];
1146                                         boost::shared_ptr<NoteType> old_note = old_rect->note();
1147                                         old_rect->property_x2() = x;
1148                                         old_rect->property_outline_what() = (guint32) 0xF;
1149                                 }
1150                                 _active_notes[note->note()] = ev_rect;
1151                         }
1152                         /* outline all but right edge */
1153                         ev_rect->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
1154                 } else {
1155                         /* outline all edges */
1156                         ev_rect->property_outline_what() = (guint32) 0xF;
1157                 }
1158
1159                 event = ev_rect;
1160
1161                 MidiGhostRegion* gr;
1162                 for (std::vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
1163                         if ((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
1164                                 gr->add_note(ev_rect);
1165                         }
1166                 }
1167
1168         } else if (midi_view()->note_mode() == Percussive) {
1169                 const double diamond_size = midi_stream_view()->note_height() / 2.0;
1170                 const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
1171
1172                 CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size, note);
1173                 ev_diamond->move(x, y);
1174                 event = ev_diamond;
1175         } else {
1176                 event = 0;
1177         }
1178
1179         if (event) {
1180                 if (_marked_for_selection.find(note) != _marked_for_selection.end()) {
1181                         note_selected(event, true);
1182                 }
1183
1184                 if (_marked_for_velocity.find(note) != _marked_for_velocity.end()) {
1185                         event->show_velocity();
1186                 }
1187                 event->on_channel_selection_change(_last_channel_selection);
1188                 _events.push_back(event);
1189
1190                 if (note_in_visible_range(note)) {
1191                         event->show();
1192                 } else {
1193                         event->hide ();
1194                 }
1195         }
1196 }
1197
1198 void
1199 MidiRegionView::add_pgm_change(PCEvent& program, const string& displaytext)
1200 {
1201         assert(program.time >= 0);
1202
1203         ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
1204         const double x = trackview.editor().frame_to_pixel(beats_to_frames(program.time));
1205
1206         double height = midi_stream_view()->contents_height();
1207
1208         boost::shared_ptr<CanvasProgramChange> pgm_change = boost::shared_ptr<CanvasProgramChange>(
1209                         new CanvasProgramChange(*this, *group,
1210                                         displaytext,
1211                                         height,
1212                                         x, 1.0,
1213                                         _model_name,
1214                                         _custom_device_mode,
1215                                         program.time, program.channel, program.value));
1216
1217         // Show unless program change is beyond the region bounds
1218         if (program.time - _region->start() >= _region->length() || program.time < _region->start()) {
1219                 pgm_change->hide();
1220         } else {
1221                 pgm_change->show();
1222         }
1223
1224         _pgm_changes.push_back(pgm_change);
1225 }
1226
1227 void
1228 MidiRegionView::get_patch_key_at(double time, uint8_t channel, MIDI::Name::PatchPrimaryKey& key)
1229 {
1230         cerr << "getting patch key at " << time << " for channel " << channel << endl;
1231         Evoral::Parameter bank_select_msb(MidiCCAutomation, channel, MIDI_CTL_MSB_BANK);
1232         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1233         float msb = -1.0;
1234         if (msb_control != 0) {
1235                 msb = int(msb_control->get_float(true, time));
1236                 cerr << "got msb " << msb;
1237         }
1238
1239         Evoral::Parameter bank_select_lsb(MidiCCAutomation, channel, MIDI_CTL_LSB_BANK);
1240         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1241         float lsb = -1.0;
1242         if (lsb_control != 0) {
1243                 lsb = lsb_control->get_float(true, time);
1244                 cerr << " got lsb " << lsb;
1245         }
1246
1247         Evoral::Parameter program_change(MidiPgmChangeAutomation, channel, 0);
1248         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1249         float program_number = -1.0;
1250         if (program_control != 0) {
1251                 program_number = program_control->get_float(true, time);
1252                 cerr << " got program " << program_number << endl;
1253         }
1254
1255         key.msb = (int) floor(msb + 0.5);
1256         key.lsb = (int) floor(lsb + 0.5);
1257         key.program_number = (int) floor(program_number + 0.5);
1258         assert(key.is_sane());
1259 }
1260
1261
1262 void
1263 MidiRegionView::alter_program_change(PCEvent& old_program, const MIDI::Name::PatchPrimaryKey& new_patch)
1264 {
1265         // TODO: Get the real event here and alter them at the original times
1266         Evoral::Parameter bank_select_msb(MidiCCAutomation, old_program.channel, MIDI_CTL_MSB_BANK);
1267         boost::shared_ptr<Evoral::Control> msb_control = _model->control(bank_select_msb);
1268         if (msb_control != 0) {
1269                 msb_control->set_float(float(new_patch.msb), true, old_program.time);
1270         }
1271
1272         // TODO: Get the real event here and alter them at the original times
1273         Evoral::Parameter bank_select_lsb(MidiCCAutomation, old_program.channel, MIDI_CTL_LSB_BANK);
1274         boost::shared_ptr<Evoral::Control> lsb_control = _model->control(bank_select_lsb);
1275         if (lsb_control != 0) {
1276                 lsb_control->set_float(float(new_patch.lsb), true, old_program.time);
1277         }
1278
1279         Evoral::Parameter program_change(MidiPgmChangeAutomation, old_program.channel, 0);
1280         boost::shared_ptr<Evoral::Control> program_control = _model->control(program_change);
1281
1282         assert(program_control != 0);
1283         program_control->set_float(float(new_patch.program_number), true, old_program.time);
1284
1285         redisplay_model();
1286 }
1287
1288 void
1289 MidiRegionView::program_selected(CanvasProgramChange& program, const MIDI::Name::PatchPrimaryKey& new_patch)
1290 {
1291         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1292         alter_program_change(program_change_event, new_patch);
1293 }
1294
1295 void
1296 MidiRegionView::previous_program(CanvasProgramChange& program)
1297 {
1298         MIDI::Name::PatchPrimaryKey key;
1299         get_patch_key_at(program.event_time(), program.channel(), key);
1300
1301         boost::shared_ptr<MIDI::Name::Patch> patch =
1302                 MIDI::Name::MidiPatchManager::instance().previous_patch(
1303                                 _model_name,
1304                                 _custom_device_mode,
1305                                 program.channel(),
1306                                 key);
1307
1308         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1309         if (patch) {
1310                 alter_program_change(program_change_event, patch->patch_primary_key());
1311         }
1312 }
1313
1314 void
1315 MidiRegionView::next_program(CanvasProgramChange& program)
1316 {
1317         MIDI::Name::PatchPrimaryKey key;
1318         get_patch_key_at(program.event_time(), program.channel(), key);
1319
1320         boost::shared_ptr<MIDI::Name::Patch> patch =
1321                 MIDI::Name::MidiPatchManager::instance().next_patch(
1322                                 _model_name,
1323                                 _custom_device_mode,
1324                                 program.channel(),
1325                                 key);
1326
1327         PCEvent program_change_event(program.event_time(), program.program(), program.channel());
1328         if (patch) {
1329                 alter_program_change(program_change_event, patch->patch_primary_key());
1330         }
1331 }
1332
1333 void
1334 MidiRegionView::delete_selection()
1335 {
1336         if (_selection.empty()) {
1337                 return;
1338         }
1339
1340         start_delta_command (_("delete selection"));
1341
1342         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1343                 if ((*i)->selected()) {
1344                         _delta_command->remove((*i)->note());
1345                 }
1346         }
1347
1348         _selection.clear();
1349
1350         apply_delta ();
1351 }
1352
1353 void
1354 MidiRegionView::clear_selection_except(ArdourCanvas::CanvasNoteEvent* ev)
1355 {
1356         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1357                 if ((*i)->selected() && (*i) != ev) {
1358                         (*i)->selected(false);
1359                         (*i)->hide_velocity();
1360                 }
1361         }
1362
1363         _selection.clear();
1364 }
1365
1366 void
1367 MidiRegionView::unique_select(ArdourCanvas::CanvasNoteEvent* ev)
1368 {
1369         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
1370
1371                 Selection::iterator tmp = i;
1372                 ++tmp;
1373
1374                 if ((*i) != ev) {
1375                         remove_from_selection (*i);
1376                 }
1377
1378                 i = tmp;
1379         }
1380
1381         if (!ev->selected()) {
1382                 add_to_selection (ev);
1383         }
1384 }
1385
1386 void
1387 MidiRegionView::note_selected(ArdourCanvas::CanvasNoteEvent* ev, bool add, bool extend)
1388 {
1389         if (!add) {
1390                 clear_selection_except(ev);
1391         }
1392
1393         if (!extend) {
1394
1395                 if (!ev->selected()) {
1396                         add_to_selection (ev);
1397                 }
1398
1399         } else {
1400                 /* find end of latest note selected, select all between that and the start of "ev" */
1401
1402                 Evoral::MusicalTime earliest = DBL_MAX;
1403                 Evoral::MusicalTime latest = 0;
1404
1405                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1406                         if ((*i)->note()->end_time() > latest) {
1407                                 latest = (*i)->note()->end_time();
1408                         }
1409                         if ((*i)->note()->time() < earliest) {
1410                                 earliest = (*i)->note()->time();
1411                         }
1412                 }
1413
1414                 if (ev->note()->end_time() > latest) {
1415                         latest = ev->note()->end_time();
1416                 }
1417
1418                 if (ev->note()->time() < earliest) {
1419                         earliest = ev->note()->time();
1420                 }
1421
1422
1423                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1424
1425                         /* find notes entirely within OR spanning the earliest..latest range */
1426
1427                         if (((*i)->note()->time() >= earliest && (*i)->note()->end_time() <= latest) ||
1428                             ((*i)->note()->time() <= earliest && (*i)->note()->end_time() >= latest)) {
1429                                 add_to_selection (*i);
1430                         }
1431
1432                         if ((*i)->note()->time() > latest) {
1433                                 break;
1434                         }
1435                 }
1436         }
1437 }
1438
1439
1440 void
1441 MidiRegionView::note_deselected(ArdourCanvas::CanvasNoteEvent* ev, bool add)
1442 {
1443         if (!add) {
1444                 clear_selection_except(ev);
1445         }
1446
1447         remove_from_selection (ev);
1448 }
1449
1450
1451 void
1452 MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
1453 {
1454         const double last_y = std::min(y1, y2);
1455         const double y      = std::max(y1, y2);
1456
1457         // TODO: Make this faster by storing the last updated selection rect, and only
1458         // adjusting things that are in the area that appears/disappeared.
1459         // We probably need a tree to be able to find events in O(log(n)) time.
1460
1461 #ifndef NDEBUG
1462         double last_x1 = 0.0;
1463 #endif
1464
1465         if (x1 < x2) {
1466                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1467 #ifndef NDEBUG
1468                         // Events should always be sorted by increasing x1() here
1469                         assert((*i)->x1() >= last_x1);
1470                         last_x1 = (*i)->x1();
1471 #endif
1472                         if ((*i)->x1() >= x1 && (*i)->x1() <= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
1473                                 // Inside rectangle
1474                                 add_to_selection (*i);
1475                         } else if ((*i)->selected()) {
1476                                 // Not inside rectangle
1477                                 remove_from_selection (*i);
1478                         }
1479                 }
1480         } else {
1481                 for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
1482 #ifndef NDEBUG
1483                         // Events should always be sorted by increasing x1() here
1484                         assert((*i)->x1() >= last_x1);
1485                         last_x1 = (*i)->x1();
1486 #endif
1487                         if ((*i)->x2() <= x1 && (*i)->x2() >= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
1488                                 // Inside rectangle
1489                                 add_to_selection (*i);
1490                         } else if ((*i)->selected()) {
1491                                 // Not inside rectangle
1492                                 remove_from_selection (*i);
1493                         }
1494                 }
1495         }
1496 }
1497
1498 void
1499 MidiRegionView::remove_from_selection (CanvasNoteEvent* ev)
1500 {
1501         Selection::iterator i = _selection.find (ev);
1502
1503         if (i != _selection.end()) {
1504                 _selection.erase (i);
1505         }
1506
1507         ev->selected (false);
1508         ev->hide_velocity ();
1509
1510         if (_selection.empty()) {
1511                 PublicEditor& editor (trackview.editor());
1512                 editor.get_selection().remove (this);
1513         }
1514 }
1515
1516 void
1517 MidiRegionView::add_to_selection (CanvasNoteEvent* ev)
1518 {
1519         bool add_mrv_selection = false;
1520
1521         if (_selection.empty()) {
1522                 add_mrv_selection = true;
1523         }
1524
1525         if (_selection.insert (ev).second) {
1526                 ev->selected (true);
1527                 play_midi_note ((ev)->note());
1528         }
1529
1530         if (add_mrv_selection) {
1531                 PublicEditor& editor (trackview.editor());
1532                 editor.get_selection().add (this);
1533         }
1534 }
1535
1536 void
1537 MidiRegionView::move_selection(double dx, double dy)
1538 {
1539         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1540                 (*i)->move_event(dx, dy);
1541         }
1542 }
1543
1544 void
1545 MidiRegionView::note_dropped(CanvasNoteEvent* ev, double dt, uint8_t dnote)
1546 {
1547         // TODO: This would be faster/nicer with a MoveCommand that doesn't need to copy...
1548         if (_selection.find(ev) == _selection.end()) {
1549                 return;
1550         }
1551
1552         uint8_t lowest_note_in_selection  = midi_stream_view()->lowest_note();
1553         uint8_t highest_note_in_selection = midi_stream_view()->highest_note();
1554         uint8_t highest_note_difference = 0;
1555
1556         // find highest and lowest notes first
1557         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1558                 uint8_t pitch = (*i)->note()->note();
1559                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  pitch);
1560                 highest_note_in_selection = std::max(highest_note_in_selection, pitch);
1561         }
1562
1563         /*
1564         cerr << "dnote: " << (int) dnote << endl;
1565         cerr << "lowest note (streamview): " << int(midi_stream_view()->lowest_note())
1566              << " highest note (streamview): " << int(midi_stream_view()->highest_note()) << endl;
1567         cerr << "lowest note (selection): " << int(lowest_note_in_selection) << " highest note(selection): "
1568              << int(highest_note_in_selection) << endl;
1569         cerr << "selection size: " << _selection.size() << endl;
1570         cerr << "Highest note in selection: " << (int) highest_note_in_selection << endl;
1571         */
1572
1573         // Make sure the note pitch does not exceed the MIDI standard range
1574         if (dnote <= 127 && (highest_note_in_selection + dnote > 127)) {
1575                 highest_note_difference = highest_note_in_selection - 127;
1576         }
1577
1578         start_diff_command(_("move notes"));
1579
1580         for (Selection::iterator i = _selection.begin(); i != _selection.end() ; ++i) {
1581
1582                 nframes64_t start_frames = beats_to_frames((*i)->note()->time());
1583
1584                 cerr << "starting at " << (*i)->note()->time()
1585                      << " (" << start_frames << ") delta on drag = " << dt << endl;
1586
1587
1588                 /* XXX THERE IS SOMETHING WRONG HERE THAT IS RELATED TO USING DT AND NOT
1589                    SOMETHING RELATED TO REGION START + DT ... XXXX
1590                 */
1591
1592                 if (dt >= 0) {
1593                         cerr << "Motion was " << snap_frame_to_frame(trackview.editor().pixel_to_frame(dt)) << endl;
1594                         start_frames += snap_frame_to_frame(trackview.editor().pixel_to_frame(dt));
1595                 } else {
1596                         cerr << "rev Motion was " << snap_frame_to_frame(trackview.editor().pixel_to_frame(dt)) << endl;
1597                         start_frames -= snap_frame_to_frame(trackview.editor().pixel_to_frame(-dt));
1598                 }
1599
1600                 cerr << "start frame will be " << start_frames << " vs. region "
1601                      << _region->position ()
1602                      << endl;
1603
1604                 Evoral::MusicalTime new_time = frames_to_beats(start_frames);
1605
1606                 if (new_time < 0) {
1607                         continue;
1608                 }
1609
1610                 diff_add_change (*i, MidiModel::DiffCommand::StartTime, new_time);
1611
1612                 uint8_t original_pitch = (*i)->note()->note();
1613                 uint8_t new_pitch      = original_pitch + dnote - highest_note_difference;
1614
1615                 // keep notes in standard midi range
1616                 clamp_to_0_127(new_pitch);
1617
1618                 // keep original pitch if note is dragged outside valid midi range
1619                 if ((original_pitch != 0 && new_pitch == 0)
1620                                 || (original_pitch != 127 && new_pitch == 127)) {
1621                         new_pitch = original_pitch;
1622                 }
1623
1624                 lowest_note_in_selection  = std::min(lowest_note_in_selection,  new_pitch);
1625                 highest_note_in_selection = std::max(highest_note_in_selection, new_pitch);
1626
1627                 diff_add_change (*i, MidiModel::DiffCommand::NoteNumber, new_pitch);
1628         }
1629
1630         apply_diff();
1631
1632         // care about notes being moved beyond the upper/lower bounds on the canvas
1633         if (lowest_note_in_selection  < midi_stream_view()->lowest_note() ||
1634                         highest_note_in_selection > midi_stream_view()->highest_note()) {
1635                 midi_stream_view()->set_note_range(MidiStreamView::ContentsRange);
1636         }
1637 }
1638
1639 nframes64_t
1640 MidiRegionView::snap_pixel_to_frame(double x)
1641 {
1642         PublicEditor& editor = trackview.editor();
1643         // x is region relative, convert it to global absolute frames
1644         nframes64_t frame = editor.pixel_to_frame(x) + _region->position();
1645         editor.snap_to(frame);
1646         return frame - _region->position(); // convert back to region relative
1647 }
1648
1649 nframes64_t
1650 MidiRegionView::snap_frame_to_frame(nframes64_t x)
1651 {
1652         PublicEditor& editor = trackview.editor();
1653         // x is region relative, convert it to global absolute frames
1654         nframes64_t frame = x + _region->position();
1655         editor.snap_to(frame);
1656         return frame - _region->position(); // convert back to region relative
1657 }
1658
1659 double
1660 MidiRegionView::snap_to_pixel(double x)
1661 {
1662         return (double) trackview.editor().frame_to_pixel(snap_pixel_to_frame(x));
1663 }
1664
1665 double
1666 MidiRegionView::get_position_pixels()
1667 {
1668         nframes64_t region_frame = get_position();
1669         return trackview.editor().frame_to_pixel(region_frame);
1670 }
1671
1672 double
1673 MidiRegionView::get_end_position_pixels()
1674 {
1675         nframes64_t frame = get_position() + get_duration ();
1676         return trackview.editor().frame_to_pixel(frame);
1677 }
1678
1679 nframes64_t
1680 MidiRegionView::beats_to_frames(double beats) const
1681 {
1682         return _time_converter.to(beats);
1683 }
1684
1685 double
1686 MidiRegionView::frames_to_beats(nframes64_t frames) const
1687 {
1688         return _time_converter.from(frames);
1689 }
1690
1691 void
1692 MidiRegionView::begin_resizing(bool at_front)
1693 {
1694         _resize_data.clear();
1695
1696         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1697                 CanvasNote *note = dynamic_cast<CanvasNote *> (*i);
1698
1699                 // only insert CanvasNotes into the map
1700                 if (note) {
1701                         NoteResizeData *resize_data = new NoteResizeData();
1702                         resize_data->canvas_note = note;
1703
1704                         // create a new SimpleRect from the note which will be the resize preview
1705                         SimpleRect *resize_rect = new SimpleRect(
1706                                         *group, note->x1(), note->y1(), note->x2(), note->y2());
1707
1708                         // calculate the colors: get the color settings
1709                         uint32_t fill_color = UINT_RGBA_CHANGE_A(
1710                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(),
1711                                         128);
1712
1713                         // make the resize preview notes more transparent and bright
1714                         fill_color = UINT_INTERPOLATE(fill_color, 0xFFFFFF40, 0.5);
1715
1716                         // calculate color based on note velocity
1717                         resize_rect->property_fill_color_rgba() = UINT_INTERPOLATE(
1718                                         CanvasNoteEvent::meter_style_fill_color(note->note()->velocity()),
1719                                         fill_color,
1720                                         0.85);
1721
1722                         resize_rect->property_outline_color_rgba() = CanvasNoteEvent::calculate_outline(
1723                                         ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get());
1724
1725                         resize_data->resize_rect = resize_rect;
1726                         _resize_data.push_back(resize_data);
1727                 }
1728         }
1729 }
1730
1731 void
1732 MidiRegionView::update_resizing (bool at_front, double delta_x, bool relative)
1733 {
1734         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1735                 SimpleRect* resize_rect = (*i)->resize_rect;
1736                 CanvasNote* canvas_note = (*i)->canvas_note;
1737                 double current_x;
1738
1739                 if (at_front) {
1740                         if (relative) {
1741                                 current_x = canvas_note->x1() + delta_x;
1742                         } else {
1743                                 // x is in track relative, transform it to region relative
1744                                 current_x = delta_x - get_position_pixels();
1745                         }
1746                 } else {
1747                         if (relative) {
1748                                 current_x = canvas_note->x2() + delta_x;
1749                         } else {
1750                                 // x is in track relative, transform it to region relative
1751                                 current_x = delta_x - get_end_position_pixels ();
1752                         }
1753                 }
1754
1755                 if (at_front) {
1756                         resize_rect->property_x1() = snap_to_pixel(current_x);
1757                         resize_rect->property_x2() = canvas_note->x2();
1758                 } else {
1759                         resize_rect->property_x2() = snap_to_pixel(current_x);
1760                         resize_rect->property_x1() = canvas_note->x1();
1761                 }
1762         }
1763 }
1764
1765 void
1766 MidiRegionView::commit_resizing (bool at_front, double delta_x, bool relative)
1767 {
1768         start_diff_command(_("resize notes"));
1769
1770         for (std::vector<NoteResizeData *>::iterator i = _resize_data.begin(); i != _resize_data.end(); ++i) {
1771                 CanvasNote*  canvas_note = (*i)->canvas_note;
1772                 SimpleRect*  resize_rect = (*i)->resize_rect;
1773                 const double region_start = get_position_pixels();
1774                 double current_x;
1775
1776                 if (at_front) {
1777                         if (relative) {
1778                                 current_x = canvas_note->x1() + delta_x;
1779                         } else {
1780                                 // x is in track relative, transform it to region relative
1781                                 current_x = region_start + delta_x;
1782                         }
1783                 } else {
1784                         if (relative) {
1785                                 current_x = canvas_note->x2() + delta_x;
1786                         } else {
1787                                 // x is in track relative, transform it to region relative
1788                                 current_x = region_start + delta_x;
1789                         }
1790                 }
1791
1792                 current_x = snap_pixel_to_frame (current_x);
1793                 current_x = frames_to_beats (current_x);
1794
1795                 if (at_front && current_x < canvas_note->note()->end_time()) {
1796                         diff_add_change (canvas_note, MidiModel::DiffCommand::StartTime, current_x);
1797                 }
1798
1799                 if (!at_front) {
1800                         double len = current_x - canvas_note->note()->time();
1801
1802                         if (len > 0) {
1803                                 /* XXX convert to beats */
1804                                 diff_add_change (canvas_note, MidiModel::DiffCommand::Length, len);
1805                         }
1806                 }
1807
1808                 delete resize_rect;
1809                 delete (*i);
1810         }
1811
1812         _resize_data.clear();
1813         apply_diff();
1814 }
1815
1816 void
1817 MidiRegionView::change_note_velocity(CanvasNoteEvent* event, int8_t velocity, bool relative)
1818 {
1819         uint8_t new_velocity;
1820
1821         if (relative) {
1822                 new_velocity = event->note()->velocity() + velocity;
1823                 clamp_to_0_127(new_velocity);
1824         } else {
1825                 new_velocity = velocity;
1826         }
1827
1828         diff_add_change (event, MidiModel::DiffCommand::Velocity, new_velocity);
1829 }
1830
1831 void
1832 MidiRegionView::change_note_note (CanvasNoteEvent* event, int8_t note, bool relative)
1833 {
1834         uint8_t new_note;
1835
1836         if (relative) {
1837                 new_note = event->note()->note() + note;
1838         } else {
1839                 new_note = note;
1840         }
1841
1842         clamp_to_0_127 (new_note);
1843         diff_add_change (event, MidiModel::DiffCommand::NoteNumber, new_note);
1844 }
1845
1846 void
1847 MidiRegionView::trim_note (CanvasNoteEvent* event, Evoral::MusicalTime front_delta, Evoral::MusicalTime end_delta)
1848 {
1849         bool change_start = false;
1850         bool change_length = false;
1851         Evoral::MusicalTime new_start;
1852         Evoral::MusicalTime new_length;
1853
1854         /* NOTE: the semantics of the two delta arguments are slightly subtle:
1855
1856            front_delta: if positive - move the start of the note later in time (shortening it)
1857                         if negative - move the start of the note earlier in time (lengthening it)
1858
1859            end_delta:   if positive - move the end of the note later in time (lengthening it)
1860                         if negative - move the end of the note earlier in time (shortening it)
1861          */
1862
1863         cerr << "Trim front by " << front_delta << " end by " << end_delta << endl;
1864
1865         if (front_delta) {
1866                 if (front_delta < 0) {
1867
1868                         if (event->note()->time() < -front_delta) {
1869                                 new_start = 0;
1870                         } else {
1871                                 new_start = event->note()->time() + front_delta; // moves earlier
1872                         }
1873
1874                         /* start moved toward zero, so move the end point out to where it used to be.
1875                            Note that front_delta is negative, so this increases the length.
1876                         */
1877
1878                         new_length = event->note()->length() - front_delta;
1879                         change_start = true;
1880                         change_length = true;
1881
1882                 } else {
1883
1884                         Evoral::MusicalTime new_pos = event->note()->time() + front_delta;
1885
1886                         if (new_pos < event->note()->end_time()) {
1887                                 new_start = event->note()->time() + front_delta;
1888                                 /* start moved toward the end, so move the end point back to where it used to be */
1889                                 new_length = event->note()->length() - front_delta;
1890                                 change_start = true;
1891                                 change_length = true;
1892                         }
1893                 }
1894
1895         }
1896
1897         if (end_delta) {
1898                 bool can_change = true;
1899                 if (end_delta < 0) {
1900                         if (event->note()->length() < -end_delta) {
1901                                 can_change = false;
1902                         }
1903                 }
1904
1905                 if (can_change) {
1906                         new_length = event->note()->length() + end_delta;
1907                         change_length = true;
1908                 }
1909         }
1910
1911         if (change_start) {
1912                 diff_add_change (event, MidiModel::DiffCommand::StartTime, new_start);
1913         }
1914
1915         if (change_length) {
1916                 diff_add_change (event, MidiModel::DiffCommand::Length, new_length);
1917         }
1918 }
1919
1920 void
1921 MidiRegionView::change_note_time (CanvasNoteEvent* event, Evoral::MusicalTime delta, bool relative)
1922 {
1923         Evoral::MusicalTime new_time;
1924
1925         if (relative) {
1926                 if (delta < 0.0) {
1927                         if (event->note()->time() < -delta) {
1928                                 new_time = 0;
1929                         } else {
1930                                 new_time = event->note()->time() + delta;
1931                         }
1932                 } else {
1933                         new_time = event->note()->time() + delta;
1934                 }
1935         } else {
1936                 new_time = delta;
1937         }
1938
1939         diff_add_change (event, MidiModel::DiffCommand::StartTime, new_time);
1940 }
1941
1942 void
1943 MidiRegionView::change_velocities (bool up, bool fine, bool allow_smush)
1944 {
1945         int8_t delta;
1946
1947         if (_selection.empty()) {
1948                 return;
1949         }
1950
1951         if (fine) {
1952                 delta = 1;
1953         } else {
1954                 delta = 10;
1955         }
1956
1957         if (!up) {
1958                 delta = -delta;
1959         }
1960
1961         if (!allow_smush) {
1962                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
1963                         if ((*i)->note()->velocity() + delta == 0 || (*i)->note()->velocity() + delta == 127) {
1964                                 return;
1965                         }
1966                 }
1967         }
1968
1969         start_diff_command(_("change velocities"));
1970
1971         for (Selection::iterator i = _selection.begin(); i != _selection.end();) {
1972                 Selection::iterator next = i;
1973                 ++next;
1974                 change_note_velocity (*i, delta, true);
1975                 i = next;
1976         }
1977
1978         apply_diff();
1979 }
1980
1981
1982 void
1983 MidiRegionView::transpose (bool up, bool fine, bool allow_smush)
1984 {
1985         if (_selection.empty()) {
1986                 return;
1987         }
1988
1989         int8_t delta;
1990
1991         if (fine) {
1992                 delta = 1;
1993         } else {
1994                 delta = 12;
1995         }
1996
1997         if (!up) {
1998                 delta = -delta;
1999         }
2000
2001         if (!allow_smush) {
2002                 for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2003                         if (!up) {
2004                                 if ((int8_t) (*i)->note()->note() + delta <= 0) {
2005                                         return;
2006                                 }
2007                         } else {
2008                                 if ((int8_t) (*i)->note()->note() + delta > 127) {
2009                                         return;
2010                                 }
2011                         }
2012                 }
2013         }
2014
2015         start_diff_command (_("transpose"));
2016
2017         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2018                 Selection::iterator next = i;
2019                 ++next;
2020                 change_note_note (*i, delta, true);
2021                 i = next;
2022         }
2023
2024         apply_diff ();
2025 }
2026
2027 void
2028 MidiRegionView::change_note_lengths (bool fine, bool shorter, bool start, bool end)
2029 {
2030         Evoral::MusicalTime delta;
2031
2032         if (fine) {
2033                 delta = 1.0/128.0;
2034         } else {
2035                 /* grab the current grid distance */
2036                 bool success;
2037                 delta = trackview.editor().get_grid_type_as_beats (success, _region->position());
2038                 if (!success) {
2039                         /* XXX cannot get grid type as beats ... should always be possible ... FIX ME */
2040                         cerr << "Grid type not available as beats - TO BE FIXED\n";
2041                         return;
2042                 }
2043         }
2044
2045         if (shorter) {
2046                 delta = -delta;
2047         }
2048
2049         start_diff_command (_("change note lengths"));
2050
2051         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2052                 Selection::iterator next = i;
2053                 ++next;
2054
2055                 /* note the negation of the delta for start */
2056
2057                 trim_note (*i, (start ? -delta : 0), (end ? delta : 0));
2058                 i = next;
2059         }
2060
2061         apply_diff ();
2062
2063 }
2064
2065 void
2066 MidiRegionView::nudge_notes (bool forward)
2067 {
2068         if (_selection.empty()) {
2069                 return;
2070         }
2071
2072         /* pick a note as the point along the timeline to get the nudge distance.
2073            its not necessarily the earliest note, so we may want to pull the notes out
2074            into a vector and sort before using the first one.
2075         */
2076
2077         nframes64_t ref_point = _region->position() + beats_to_frames ((*(_selection.begin()))->note()->time());
2078         nframes64_t unused;
2079         nframes64_t distance;
2080
2081         if ((distance = trackview.editor().get_nudge_distance (ref_point, unused)) == 0) {
2082
2083                 /* no nudge distance set - use grid */
2084
2085                 nframes64_t next_pos = ref_point;
2086
2087                 if (forward) {
2088                         /* XXX need check on max_frames, but that needs max_frames64 or something */
2089                         next_pos += 1;
2090                 } else {
2091                         if (next_pos == 0) {
2092                                 return;
2093                         }
2094                         next_pos -= 1;
2095                 }
2096
2097                 cerr << "ref point was " << ref_point << " next was " << next_pos;
2098                 trackview.editor().snap_to (next_pos, (forward ? 1 : -1), false);
2099                 distance = ref_point - next_pos;
2100                 cerr << " final is " << next_pos << " distance = " << distance << endl;
2101         }
2102
2103         if (distance == 0) {
2104                 return;
2105         }
2106
2107         Evoral::MusicalTime delta = frames_to_beats (fabs (distance));
2108
2109         if (!forward) {
2110                 delta = -delta;
2111         }
2112
2113         start_diff_command (_("nudge"));
2114
2115         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ) {
2116                 Selection::iterator next = i;
2117                 ++next;
2118                 change_note_time (*i, delta, true);
2119                 i = next;
2120         }
2121
2122         apply_diff ();
2123 }
2124
2125 void
2126 MidiRegionView::change_channel(uint8_t channel)
2127 {
2128         start_diff_command(_("change channel"));
2129         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2130                 diff_add_change (*i, MidiModel::DiffCommand::Channel, channel);
2131         }
2132         apply_diff();
2133 }
2134
2135
2136 void
2137 MidiRegionView::note_entered(ArdourCanvas::CanvasNoteEvent* ev)
2138 {
2139         if (_mouse_state == SelectTouchDragging) {
2140                 note_selected(ev, true);
2141         }
2142
2143         PublicEditor& editor (trackview.editor());
2144         editor.show_verbose_canvas_cursor_with (Evoral::midi_note_name (ev->note()->note()));
2145 }
2146
2147 void
2148 MidiRegionView::note_left (ArdourCanvas::CanvasNoteEvent* ev)
2149 {
2150         PublicEditor& editor (trackview.editor());
2151         editor.hide_verbose_canvas_cursor ();
2152 }
2153
2154
2155 void
2156 MidiRegionView::switch_source(boost::shared_ptr<Source> src)
2157 {
2158         boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
2159         if (msrc)
2160                 display_model(msrc->model());
2161 }
2162
2163 void
2164 MidiRegionView::set_frame_color()
2165 {
2166         if (frame) {
2167                 if (_selected && should_show_selection) {
2168                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
2169                 } else {
2170                         frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
2171                 }
2172         }
2173 }
2174
2175 void
2176 MidiRegionView::midi_channel_mode_changed(ChannelMode mode, uint16_t mask)
2177 {
2178         switch (mode) {
2179         case AllChannels:
2180         case FilterChannels:
2181                 _force_channel = -1;
2182                 break;
2183         case ForceChannel:
2184                 _force_channel = mask;
2185                 mask = 0xFFFF; // Show all notes as active (below)
2186         };
2187
2188         // Update notes for selection
2189         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2190                 (*i)->on_channel_selection_change(mask);
2191         }
2192
2193         _last_channel_selection = mask;
2194 }
2195
2196 void
2197 MidiRegionView::midi_patch_settings_changed(std::string model, std::string custom_device_mode)
2198 {
2199         _model_name         = model;
2200         _custom_device_mode = custom_device_mode;
2201         redisplay_model();
2202 }
2203
2204 void
2205 MidiRegionView::cut_copy_clear (Editing::CutCopyOp op)
2206 {
2207         if (_selection.empty()) {
2208                 return;
2209         }
2210
2211         PublicEditor& editor (trackview.editor());
2212
2213         switch (op) {
2214         case Cut:
2215         case Copy:
2216                 editor.get_cut_buffer().add (selection_as_cut_buffer());
2217                 break;
2218         default:
2219                 break;
2220         }
2221
2222         start_delta_command();
2223
2224         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2225                 switch (op) {
2226                 case Copy:
2227                         break;
2228                 case Cut:
2229                         delta_remove_note (*i);
2230                         break;
2231                 case Clear:
2232                         break;
2233                 }
2234         }
2235
2236         apply_delta();
2237 }
2238
2239 MidiCutBuffer*
2240 MidiRegionView::selection_as_cut_buffer () const
2241 {
2242         NoteList notes;
2243
2244         for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
2245                 notes.push_back (boost::shared_ptr<NoteType> (new NoteType (*((*i)->note().get()))));
2246         }
2247
2248         /* sort them into time order */
2249
2250         Evoral::Sequence<Evoral::MusicalTime>::LaterNoteComparator cmp;
2251         sort (notes.begin(), notes.end(),  cmp);
2252
2253         MidiCutBuffer* cb = new MidiCutBuffer (trackview.session());
2254         cb->set (notes);
2255
2256         return cb;
2257 }
2258
2259 void
2260 MidiRegionView::paste (nframes64_t pos, float times, const MidiCutBuffer& mcb)
2261 {
2262         if (mcb.empty()) {
2263                 return;
2264         }
2265
2266         start_delta_command (_("paste"));
2267
2268         Evoral::MusicalTime beat_delta;
2269         Evoral::MusicalTime paste_pos_beats;
2270         Evoral::MusicalTime duration;
2271         Evoral::MusicalTime end_point;
2272
2273         duration = mcb.notes().back()->end_time() - mcb.notes().front()->time();
2274         paste_pos_beats = frames_to_beats (pos - _region->position());
2275         beat_delta = mcb.notes().front()->time() - paste_pos_beats;
2276         paste_pos_beats = 0;
2277
2278         _selection.clear ();
2279
2280         for (int n = 0; n < (int) times; ++n) {
2281
2282                 for (NoteList::const_iterator i = mcb.notes().begin(); i != mcb.notes().end(); ++i) {
2283
2284                         boost::shared_ptr<NoteType> copied_note (new NoteType (*((*i).get())));
2285                         copied_note->set_time (paste_pos_beats + copied_note->time() - beat_delta);
2286
2287                         /* make all newly added notes selected */
2288
2289                         delta_add_note (copied_note, true);
2290                         end_point = copied_note->end_time();
2291                 }
2292
2293                 paste_pos_beats += duration;
2294         }
2295
2296         /* if we pasted past the current end of the region, extend the region */
2297
2298         nframes64_t end_frame = _region->position() + beats_to_frames (end_point);
2299         nframes64_t region_end = _region->position() + _region->length() - 1;
2300
2301         if (end_frame > region_end) {
2302
2303                 trackview.session().begin_reversible_command (_("paste"));
2304
2305                 XMLNode& before (_region->get_state());
2306                 _region->set_length (end_frame, this);
2307                 trackview.session().add_command (new MementoCommand<Region>(*_region, &before, &_region->get_state()));
2308         }
2309
2310         apply_delta ();
2311 }
2312
2313 void
2314 MidiRegionView::add_note (uint8_t channel, uint8_t number, uint8_t velocity,
2315                           Evoral::MusicalTime pos, Evoral::MusicalTime len)
2316 {
2317         boost::shared_ptr<NoteType> new_note (new NoteType (channel, pos, len, number, velocity));
2318
2319         start_delta_command (_("step add"));
2320         delta_add_note (new_note, true, false);
2321         apply_delta();
2322
2323         /* potentially extend region to hold new note */
2324
2325         nframes64_t end_frame = _region->position() + beats_to_frames (new_note->end_time());
2326         nframes64_t region_end = _region->position() + _region->length() - 1;
2327
2328         if (end_frame > region_end) {
2329                 _region->set_length (end_frame, this);
2330         } else {
2331                 redisplay_model ();
2332         }
2333 }
2334
2335 void
2336 MidiRegionView::goto_next_note ()
2337 {
2338         // nframes64_t pos = -1;
2339         bool use_next = false;
2340
2341         if (_events.back()->selected()) {
2342                 return;
2343         }
2344
2345         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2346                 if ((*i)->selected()) {
2347                         use_next = true;
2348                         continue;
2349                 } else if (use_next) {
2350                         unique_select (*i);
2351                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2352                         return;
2353                 }
2354         }
2355
2356         /* use the first one */
2357
2358         unique_select (_events.front());
2359
2360 }
2361
2362 void
2363 MidiRegionView::goto_previous_note ()
2364 {
2365         // nframes64_t pos = -1;
2366         bool use_next = false;
2367
2368         if (_events.front()->selected()) {
2369                 return;
2370         }
2371
2372         for (Events::reverse_iterator i = _events.rbegin(); i != _events.rend(); ++i) {
2373                 if ((*i)->selected()) {
2374                         use_next = true;
2375                         continue;
2376                 } else if (use_next) {
2377                         unique_select (*i);
2378                         // pos = _region->position() + beats_to_frames ((*i)->note()->time());
2379                         return;
2380                 }
2381         }
2382
2383         /* use the last one */
2384
2385         unique_select (*(_events.rbegin()));
2386 }
2387
2388 void
2389 MidiRegionView::selection_as_notelist (NoteList& selected)
2390 {
2391         for (Events::iterator i = _events.begin(); i != _events.end(); ++i) {
2392                 if ((*i)->selected()) {
2393                         selected.push_back ((*i)->note());
2394                 }
2395         }
2396 }
2397
2398